BACKGROUND: Ubiquitination is a highly dynamic and reversible process with a central role in cell homeostasis. Deregulation of several deubiquitinating enzymes has been linked to tumor development but their specific role in prostate cancer progression remains unexplored. METHODS: RNAi screening was used to investigate the role of the ovarian tumor proteases (OTU) family of deubiquitinating enzymes on the proliferation and invasion capacity of prostate cancer cells. RhoA activity was measured in relation with OTUB1 effects on prostate cancer cell invasion. Tumor xenograft mouse model with stable OTUB1 knockdown was used to investigate OTUB1 influence in tumor growth. RESULTS: Our RNAi screening identified OTUB1 as an important regulator of prostate cancer cell invasion through the modulation of RhoA activation. The effect of OTUB1 on RhoA activation is important for androgen-induced repression of p53 expression in prostate cancer cells. In localized prostate cancer tumors OTUB1 was found overexpressed as

BACKGROUND: Ubiquitination is a highly dynamic and reversible process with a central role in cell homeostasis. Deregulation of several deubiquitinating enzymes has been linked to tumor development but their specific role in prostate cancer progression remains unexplored. METHODS: RNAi screening was used to investigate the role of the ovarian tumor proteases (OTU) family of deubiquitinating enzymes on the proliferation and invasion capacity of prostate cancer cells. RhoA activity was measured in relation with OTUB1 effects on prostate cancer cell invasion. Tumor xenograft mouse model with stable OTUB1 knockdown was used to investigate OTUB1 influence in tumor growth. RESULTS: Our RNAi screening identified OTUB1 as an important regulator of prostate cancer cell invasion through the modulation of RhoA activation. The effect of OTUB1 on RhoA activation is important for androgen-induced repression of p53 expression in prostate cancer cells. In localized prostate cancer tumors OTUB1 was found overexpressed as

TY - JOUR. T1 - The mode and dynamics of glioblastoma cell invasion into a decellularized tissue-derived extracellular matrix-based three-dimensional tumor model. AU - Koh, Ilkyoo. AU - Cha, Junghwa. AU - Park, Junseong. AU - Choi, Junjeong. AU - Kang, Seok Gu. AU - Kim, Pilnam. PY - 2018/3/1. Y1 - 2018/3/1. N2 - Glioblastoma multiforme (GBM) is the most common brain tumor with very aggressive and infiltrative. Extracellular matrix (ECM) plays pivotal roles in the infiltrative characteristics of GBM. To understand the invasive characteristic of GBM, it is necessary to study cell-ECM interaction in the physiologically relevant biomimetic model that recapitulates the GBM-specific ECM microenvironment. Here, we propose biomimetic GBM-specific ECM microenvironment for studying mode and dynamics of glioblastoma cell invasion. Using tissue decellularization process, we constructed a patient tissue-derived ECM (pdECM)-based three-dimensional in vitro model. In our model, GBM cells exhibited ...

Peroxisome proliferator-activated receptor β (PPARβ) and NaV1.5 voltage-gated sodium channels have independently been shown to regulate human breast cancer cell invasiveness. The n-3 polyunsaturated docosahexaenoic acid (DHA, 22:6n-3), a natural ligand of PPAR, is effective in increasing survival and chemotherapy efficacy in breast cancer patient with metastasis. DHA reduces breast cancer cell invasiveness and it also inhibits PPARβ expression. We have shown previously that NaV1.5 promotes MDA-MB-231 breast cancer cells invasiveness by potentiating the activity of Na(+)/H(+) exchanger type 1 (NHE-1), the major regulator of H(+) efflux in these cells. We report here that DHA inhibited NaV1.5 current and NHE-1 activity in human breast cancer cells, and in turn reduced NaV1.5-dependent cancer cell invasiveness. For the first time, we show that antagonizing PPARβ, or inhibiting its expression, reduced NaV1.5 mRNA and protein expression and NaV1.5 current, as well as NHE-1 activity and cell ...

We demonstrate that the alpha6beta4 integrin promotes carcinoma invasion through a preferential and localized targeting of phosphoinositide-3 OH kinase (PI3K) activity. Stable expression of alpha6beta4 increased carcinoma invasion in a PI3K-dependent manner, and transient expression of a constitutiv …

Epidermal growth factor receptor (EGFR), a receptor tyrosine kinase, is implicated in many cancers; however, it is unclear specifically which EGFR pathways are involved in triggering tumor cell invasiveness. The abundance of the small guanosine triphosphatase Arf6, which regulates processes such as membrane trafficking and endocytosis, correlates with the invasiveness of malignant breast cancer cells. In this context, Morishige et al. used small interfering RNA (siRNA) to individually decrease the expression of the 10 genes that encode guanine nucleotide exchange factors (GEFs) that activate Arf family proteins in the invasive human breast cancer cell line MDA-MB-231. GEP100 was the only ArfGEF whose depletion resulted in the inhibition of MDA-MB-231 invasion activity, as measured by an in-gel invasiveness assay. Coimmunoprecipitation studies showed that EGF treatment of MDA-MB-231 cells triggered the association of GEP100 with EGFR. In transfected Cos-7 cells, the authors showed the ...

Purified Cell Invasion Assay (Basement Membrane), 24-well, 8 μm from Creative Biomart. Cell Invasion Assay (Basement Membrane), 24-well, 8 μm can be used for research.

TY - JOUR. T1 - Tumor volume and lymphovascular space invasion as a prognostic factor in early invasive adenocarcinoma of the cervix. AU - Murakami, Isao. AU - Fujii, Takuma. AU - Kameyama, Kaori. AU - Iwata, Takashi. AU - Saito, Miyuki. AU - Kubushiro, Kaneyuki. AU - Aoki, Daisuke. PY - 2012/6. Y1 - 2012/6. N2 - Objective: The aim of this study was to investigate the risk and recurrence of early invasive adenocarcinoma of the cervix, and to determine whether non-radical methods of management could be performed. Methods: The medical and histopathological records of 50 patients with early invasive adenocarcinoma of the cervix treated at Keio University Hospital between 1993 and 2005 were reviewed, and compared with the literature. Results: The median follow-up period was 64.3 months. The depth of stromal invasion was ≤3 mm in 33 cases and ,3 mm, but ≤5 mm in 17 cases. The horizontal spread was ≤7 mm in 25 cases and ,7 mm in 25 cases. One of the 33 cases that had tumor volumes of ≤500 mm ...

Background Stromal fibroblasts can contribute to tumor invasion through the release of matrix metalloproteinases (MMPs). Population studies have suggested that single nucleotide polymorphisms (SNPs) in MMP genes influence levels of expression and may be associated with breast cancer risk and with disease progression. This study directly examined the impact of MMP SNP genotype on the ability of host fibroblasts to promote tumor cell invasion. Methods Primary breast fibroblasts were isolated from patients with (n = 13) or without (n = 19) breast cancer, and their ability to promote breast cancer cell invasion was measured in in vitro invasion assays. Fibroblast invasion-promoting capacity (IPC) was analyzed in relation to donor type (tumor or non-tumor patient), MMP-1, MMP-3, and MMP-9 SNP genotype and MMP activity using independent samples t test and analysis of variance. All statistical tests were two-sided. Results Tumor-derived fibroblasts promoted higher levels of invasion than normal ...

Platelet-cancer cell interactions play a key role in successful haematogenous metastasis. Disseminated malignancy is the leading cause of death among ovarian cancer patients. It is unknown why different ovarian cancers have different metastatic phenotypes. To investigate if platelet-cancer cell interactions play a role, we characterized the response of ovarian cancer cell lines to platelets both functionally and at a molecular level. Cell lines 59 M and SK-OV-3 were used as in vitro model systems of metastatic ovarian cancer. Platelet cloaking of each cell line was quantified by flow cytometry. Matrigel invasion chamber assays were used to assess the invasive capacity of the cell lines. The induction of an EMT was assessed by morphology analysis and by gene expression analysis of a panel of 11 EMT markers using TaqMan RT-PCR. SK-OV-3 cells adhered to and activated more platelets than 59 M cells (p = 0.0333). Platelets significantly promoted the ability of only SK-OV-3 cells to invade (p ≤ 0.0001).

Sigma-Aldrich offers abstracts and full-text articles by [Hai Zhang, Shanyu Cheng, Min Zhang, Xiuping Ma, Li Zhang, Yipin Wang, Rong Rong, Juan Ma, Shukai Xia, Mingzhan Du, Feng Shi, Jie Wang, Qinyi Yang, Xiaoming Bai, Jing Leng].

4360 Secreted acidic protein rich in cysteine (SPARC) has been suggested as a potential glioma invasion promoting gene. SPARC is highly expressed in human gliomas, promotes glioma invasion, and delays tumor growth in vitro and in vivo. cDNA array reports were performed to determine whether SPARC, which interacts at the cell surface, has an impact on intracellular signaling and downstream gene expression changes that might account for some of its effects on invasion and growth. Additional in vitro studies demonstrated that SPARC delays growth, increases attachment, and modulates migration of tumor cells in extracellular matrix-specific and concentration-dependent manners. It has been reported that SPARC functionally contributes to brain tumor invasion and delays tumor growth in vivo, and that the effects of SPARC are related to the level of SPARC secreted into the extracellular matrix. Thus far, the signaling aspects of glioma migration and invasion are not fully understood. As such, we made an ...

Furin, a subtilisin/kesin-like proprotein convertase (PC), activates membrane-bound MT1-MMP, which facilitates pro-gelatinase A (MMP2). These activated MT1-MMP and MMP2 are involved in cancer cell invasion and metastasis. In this study, we investigate the contribution of MMP2 activated by furin to cellular invasiveness of cumulatively irradiated cells.. Using previously established AMC-HN3 and AMC-HN8 cell line from laryngeal carcinoma patient, we have generated isogenic model of cumulatively irradiated AMC-HN3R and AMC-HN8R cell line, respectively. AMC-HN3R cells were increased furin expression with upregulation of MT1-MMP/MMP2 and their invasiveness by two fold (p , 0.05) compared to AMC-HN3, while AMC-HN8R cells had no differences compared to AMC-HN8. In case of AMC-HN3R, inhibition of furin activity with the synthetic inhibitor decanoyl-Arg-Val-Lys-Arg-chloromethyl-keton, CMK, showed a significant decrease of MT1-MMP/MMP2 and in vitro cellular invasiveness. Tumors obtained after subcutaneous ...

TY - JOUR. T1 - EGFR-mediated carcinoma cell metastasis mediated by integrin αvβ5 depends on activation of c-Src and cleavage of MUC1. AU - Lau, Steven K.M.. AU - Shields, David J.. AU - Murphy, Eric A.. AU - Desgrosellier, Jay S.. AU - Anand, Sudarshan. AU - Huang, Miller. AU - Kato, Shumei. AU - Lim, Ssang Taek. AU - Weis, Sara M.. AU - Stupack, Dwayne G.. AU - Schlaepfer, David D.. AU - Cheresh, David A.. PY - 2012/5/7. Y1 - 2012/5/7. N2 - Receptor tyrosine kinases and integrins play an essential role in tumor cell invasion and metastasis. We previously showed that EGF and other growth factors induce human carcinoma cell invasion and metastasis mediated by integrin αvβ5 that is prevented by Src blockade [1]. MUC1, a transmembrane glycoprotein, is expressed in most epithelial tumors as a heterodimer consisting of an extracellular and a transmembrane subunit. The MUC1 cytoplasmic domain of the transmembrane subunit (MUC1.CD) translocates to the nucleus where it promotes the transcription of ...

Salmonellosis is one of the most common and widely distributed food borne diseases caused by Salmonella enterica serovar Typhi (S.Typhi). Powerful str..

Fig. 3 PTENs intact PDZ binding domain is required for antagonism of PREX2-driven invasion, and the PTEN C2-tail is sufficient to suppress invasion.. (A) PREX2 drives invasion. BT549 cells were transfected as indicated and subjected to invasion assays using an FBS gradient or no gradient. (B) PTEN constructs used in invasion assays. (C) PTEN C2-tail, G129E, and C124S block PREX2-driven invasion. BT549 cells were transfected as indicated, and invasion experiments were performed using an FBS gradient. (D) Immunoblots showing PREX2 and PTEN from cells used in invasion assays. Lysates from breast cancer cell lines with endogenous PTEN are shown. (E) C2-tail antagonizes PREX2-driven invasion in SUM149 cells. SUM149 cells were transfected as indicated, and invasion experiments were performed. (F) Coimmunoprecipitation of PTEN constructs and PREX2. BT549 cells were transfected with V5-PREX2 along with the indicated FLAG-PTEN constructs. (G) Schematic showing the binding of the PTEN PDZ binding domain ...

proteinxx, your post is simply great If there were more bright people like you in control of world, we will get a much better life on this planet. Btw. Tai

I guess china might see it as being an embarresment that Taiwan is trying to break away as they consider taiwan part of china and it does not look good on

Die Universität zu Köln ist eine Exzellenzuniversität mit dem klassischen Fächerspektrum einer Volluniversität. Als eine der größen Hochschulen Europas arbeitet sie in Forschung und Lehre auch international auf höchstem Niveau.

Chemotherapy is widely used to treat metastatic disease. However, while many patients initially respond, a high percentage of them ultimately relapse. Cells plated in a monolayer respond much better to cytotoxic therapy than the same cells grown in 3D spheroids, or in xenograft tumors in mice, suggesting that the ECM and stromal cells that make up the tumor microenvironment drive drug resistance. While there has been work highlighting mechanisms of resistance derived from the release of cytokines from stromal cells, the role of the ECM in this process remains understudied in 3D in vitro systems or in vivo using mouse models. In addition, how chemotherapy treatment alters the ECM remains unknown. Finally, most studies focus on the effect chemotherapeutics on cell death, while the potentially dangerous effects of these drugs on tumor cell invasion and metastatic capability remain understudied. Our preliminary data show that chemotherapeutics can have different effects on growth and motility in ...

Celldance 2015: Spying on Cancer Cell Invasion, by Edison Leung with Allison Harney, John Condeelis lab, Albert Einstein College of Medicine.

Perineural invasion (PNI) is thought to be one of the factors responsible for the high rate of tumor recurrence after surgery and the pain generation associated with pancreatic cancer. Signaling via the nerve growth factor (NGF) pathway between pancreatic cancer cells and the surrounding nerves has been implicated in PNI, and increased levels of these proteins have been correlated to poor prognosis. In this study, we examine the molecular mechanism of the NGF signaling pathway in PNI in pancreatic cancer. We show that knocking down NGF or its receptors, TRKA and p75NTR, or treatment with GW441756, a TRKA kinase inhibitor, reduces the proliferation and migration of pancreatic cancer cells in vitro ...

Publications (* co-first): Kim HD*, Sileika TS*, Maniak P, Messersmith PB. Antibacterial performance of polydopamine modified polymer surfaces containing passive and active components. Submitted. 2011 Kim HD, Peyton SR. Bio-inspired materials for parsing matrix physicochemical control of cell migration. Integr Biol. Accepted. 2011 Kim HD*, Hause RJ*, Leung K*, Jones RA. Targeted protein-omic methods are bridging the gap between proteomic and hypothesis-driven protein analysis approaches. Expert Rev Proteomics. Accepted. 2011 Kim HD, Meyer AS, Wagner JP, Alford SK, Wells A, Gertler FB, Lauffenburger DA. Signaling network state predicts Twist-mediated effects on breast cell migration across diverse growth factor contexts. Mol Cell Proteomics. Accepted. 2011 Philippar U, Roussos ET, Oser M, Yamaguchi H, Kim HD, Giampieri S, Wang Y, Goswami S, Wyckoff JB, Lauffenburger DA, Sahai E, Condeelis JS, Gertler FB. A Mena invasion isoform potentiates EGF-induced carcinoma cell invasion and metastasis. Dev ...

Cell migration & Invasion Assays are important investigate for different cell types and disease states. Read more in this Article.

Identification of bona fide tumor suppressors is often challenging because of the large number of genetic alterations present in most human cancers. To evaluate candidate genes present within chromosomal regions recurrently deleted in human cancers, we coupled high-resolution genomic analysis with a …

Isoorientin induces apoptosis, decreases invasiveness, and downregulates VEGF secretion by activating AMPK signaling in pancreatic cancer cells [Corrigendum] Isoorientin induces apoptosis, decreases invasiveness, and downregulates VEGF secretion by activating AMPK signaling in pancreatic cancer cells [Corrigendum]Ye T, Su J, Huang C, et al. OncoTargets Ther. 2016;9:7481â 7492.The authors have advised that a number of errors were made in some of the figures within their paper.Read the original article

OGT-2115 is a heparanase inhibitor (IC50 = 0.4 μM). Heparanase inhibitors suppress breast cancer cell invasion and migration induced by ER stress, and provide a strong rationale for the development of heparanase-based therapeutics for the prevention of metastasis induced by chemotherapeutic reagents.

EXTERNAL SPEAKER. Dr Sara Rossana Zanivan, Senior Lecturer, Beatson Institute for Cancer Research, University of Glasgow. Pro-invasive tumour-stroma interactions:thekey role of cancer associated fibroblasts. Hosted in room C1071 C Floor South Block Queens Medical Centre and dual broadcast to The Staff Room Academic Oncology 1st Floor above South Entrance City Hospital. This forms part of the Division of Cancer & Stem Cells seminar series ...

Research Topics, Genomes and Genes, Species, Research Grants, Publications about Control of lung cancer invasion and metastasis by vimentin

Effect of TGFβ1 on the phenotype, migratory ability, and survival of CD16− monocytes. PBMCs were depleted of CD16+ cells using miniMACS magnetic selection. T

CONCLUSIONS: The circular RNA hsa_circ_0091017 can inhibit the proliferation, migration and invasiveness of BCa cells by regulating the expression of microRNA-589-5p. PMID: 31957821 [PubMed - in process]...

Invasion was calculated employing BioCoat MatriGel Invasion Chambers (BD Biosciences) in accordance to the manufacturers recommendations. The upper insert

Human bodies are highly fluctuating complex systems. They detect and integrate the clues from changing environments and their own internal states, making numerous responses after delicate computation and regulation. Traditional routes of drug administration includes oral intake or intravenous injection may be too simplified to promptly fit the real-time condition of the body states. In addition, the frequent and repetitive intake of drugs may be annoying, and sometimes the invasive processes are suffering, bringing inconvenience to our daily lives. Medical instruments or electrical monitors can instantaneously detect and response to some specific physiological or pathological parameters, but they are usually too heavy and bulky to carry, which restrict the mobility of patients while using it. Therefore we aim to program the intestinal microbes to build our novel smart drug delivery systems-PEPDEX. There are around \(10^{13}\) to \(10^{14}\) microorganisms inhabiting in our gastrointestinal ...

Human bodies are highly fluctuating complex systems. They detect and integrate the clues from changing environments and their own internal states, making numerous responses after delicate computation and regulation. Traditional routes of drug administration includes oral intake or intravenous injection may be too simplified to promptly fit the real-time condition of the body states. In addition, the frequent and repetitive intake of drugs may be annoying, and sometimes the invasive processes are suffering, bringing inconvenience to our daily lives. Medical instruments or electrical monitors can instantaneously detect and response to some specific physiological or pathological parameters, but they are usually too heavy and bulky to carry, which restrict the mobility of patients while using it. Therefore we aim to program the intestinal microbes to build our novel smart drug delivery systems-PEPDEX. There are around \(10^{13}\) to \(10^{14}\) microorganisms inhabiting in our gastrointestinal ...

Most noticeable on CEATEC Japan for those of us who dont live in Japan was a host of robotic and sensor products programmed to talk, think, and behave like Japanese people, mirroring Japanese sensibilities, preferences, and habits.

Knockdown of TF with TF-siRNA attenuated the invasion ability of lung adenocarcinoma cells in vitro. Representative microscopy images of the invasion assay are

Ent survival. However, tumor invasion and metastasis contribute to the great majority of breast Tubastatin A supplier cancer deaths. Our efforts towards the

The KOMP Repository Collection is located at the MMRRC at the University of California, Davis and Childrens Hospital Oakland Research Institute. Question? Comments? For Mice, Cells, and germplasm please contact us at [email protected], US 1-888-KOMP-MICE or International +1-530-752-KOMP, or for vectors [email protected] or +1-510-450-7917 ...

BioTek 應用報告, 10/09 2014, Automated Kinetic Imaging of Cell Migration and Invasion Assays using Corning FluoroBlok Permeable Supports

BioTek 应用手册, 10/09 2014, Automated, Kinetic Imaging of Cell Migration and Invasion Assays using Corning FluoroBlok™ Permeable Supports

Its the zombie-slaying survival game with JRPG elements you didnt know you wanted! Get swarmed by zombies in active-time battles, search for other survivors, eat and most importantly: SURVIVE!

Invasion of the Bunny Snatchers: The Return is a 1995 short subject which is directed by Greg Ford, Terry Lennon and Martin Gates. This is a Sequel to Invasion of the Bunny Snatchers.

Disease of cellular proliferation characterized by uncontrolled cellular proliferation, local tissue invasion, and disseminated metastasis

The available database information concerning Rab17 and its interactors is insufficient to infer potential effectors and pathways through which this GTPase acts to suppress cancer invasiveness and progression. We, therefore, determined the Rab17 interactome and its influence on the cellular proteome in an unbiased manner. The use of high-accuracy MS-based approaches has enabled us to do this and to show that Rab17 has a close physical and functional relationship with the SNARE protein Vamp8. Rab GTPases are known to recruit specific effector proteins that bind to SNAREs, giving specificity to vesicle fusion (Angers and Merz, 2011). Nevertheless, to our knowledge, our study is the first to provide an indication that the stability and cellular levels of a SNARE protein may be controlled by a Rab GTPase. Moreover, because Vamp8 is the only component of the proteome that is significantly altered following Rab17 knockdown, the relationship between this GTPase and Vamp8 stability is likely to be ...

BACKGROUND/PURPOSE:The effects of chemical and physical interactions in the microenvironment of solid tumors have not been fully elucidated. We hypothesized that acidosis, hypoxia, and elevated interstitial fluid pressure (eIFP) have additive effects on tumor cell biology and lead to more aggressive behavior during tumor progression. We investigated this phenomenon using 3 human osteosarcoma cell lines and a novel in vitro cell culture apparatus. MATERIALS AND METHODS:U2OS, SaOS, and MG63 cell lines were cultured in media adjusted to various pH levels, oxygen tension (hypoxia 2% O2, normoxia 20% O2), and hydrostatic gauge pressure (0 or 50 mm Hg). Growth rate, apoptosis, cell cycle parameters, and expression of mRNA for proteins associated with invasiveness and tumor microenvironment (CA IX, VEGF-A, HIF-1A, MMP-9, and TIMP-2) were analyzed. Levels of CA IX, HIF-1α, and MMP-9 were measured using immunofluorescence. The effect of pH on invasiveness was evaluated in a Matrigel chamber assay.RESULTS:

TY - JOUR. T1 - Cervical carcinoma with full-thickness stromal invasion. T2 - Efficacy of dynamic MR imaging in the assessment of parametrial involvement. AU - Iwata, Sumiyo. AU - Joja, Ikuo. AU - Okuno, Keiko. AU - Miyagi, Yasunari. AU - Sakaguchi, Yukiyoshi. AU - Kudo, Takafumi. AU - Hiraki, Yoshio. PY - 2002/9/1. Y1 - 2002/9/1. N2 - The purpose of this study was to investigate the efficacy of dynamic MR imaging in the assessment of parametrial involvement by cervical carcinoma with full-thickness stromal invasion on thinsection oblique axial T2-weighted images. Dynamic MR images of 24 patients with cervical carcinoma with full-thickness stromal invasion on thin-section oblique axial T2-weighted images were evaluated with pathologic correlation. Dynamic MR imaging was performed using a turboFLASH, 3D-FISP, or 2D-FLASH technique. The imaging planes of dynamic MR imaging were oblique axial planes of the uterine cervix. Dynamic MR imaging was performed twice, once for the early phase (40 to 60 ...

In addition to its well-established role in embryo development, epithelial-to-mesenchymal transition (EMT) has been proposed as a general mechanism favoring tumor metastatization in several epithelial malignancies. Herein, we review the topic of EMT in cholangiocarcinoma (CCA), a primary liver cancer arising from the epithelial cells lining the bile ducts (cholangiocytes) and characterized by an abundant stromal reaction. CCA carries a dismal prognosis, owing to a pronounced invasiveness and scarce therapeutic opportunities. In CCA, several reports indicate that cancer cells acquire a number of EMT biomarkers and functions. These phenotypic changes are likely induced by both autocrine and paracrine signals released in the tumor microenvironment (cytokines, growth factors, morphogens) and intracellular stimuli (microRNAs, oncogenes, tumor suppressor genes) variably associated with specific disease mechanisms, including chronic inflammation and hypoxia. Nevertheless, evidence supporting a complete EMT of

Pancreatic ductal adenocarcinoma (PDAC) and other pancreatic neoplasms exhibited increased SPARCL1 mRNA levels compared to those of the normal pancreas. SPARCL1 mRNA levels were low to absent in microdissected and cultured pancreatic cancer cells, and promoter demethylation increased SPARCL1 levels only slightly in three of eight cell lines. SPARCL1 was observed in small capillaries in areas of inflammation/tumor growth and in some islet cells. In PDAC, 15.4% of vessels were SPARCL1-positive. In contrast, the percentage of SPARCL1-positive vessels was higher in chronic pancreatitis and benign and borderline pancreatic tumors. Recombinant SPARCL1 inhibited pancreatic cancer cell invasion and exerted moderate growth-inhibitory effects. In conclusion, SPARCL1 expression in pancreatic tissues is highly correlated with level of vascularity. Its anti-invasive effects and reduced expression in metastasis indicate tumor-suppressor function ...

Epithelial cell adhesion molecule (EpCAM) is a 40-kD cell-surface glycoprotein that is dramatically overexpressed in the majority of breast cancers. We were the first to demonstrate that EpCAM is directly involved in the regulation of breast cancer migration and invasion. Specifically, in loss-of-function studies we have demonstrated that specific ablation of EpCAM expression: (1) decreases breast cancer invasion in vitro and in vivo; (2) is associated with cytoskeletal rearrangement and alterations in Rho GTPases; and (3) impacts on the expression of transcription factors and genes known to be involved in breast cancer invasion. The hypothesis is that EpCAM plays a central role in the regulation of breast cancer invasion. We are currently exploring this hypothesis in detail using cultured human breast cancer cells, breast cancer xenografts, human breast specimens, and a transgenic mouse model of breast carcinogenesis. Specific aims include (1) Test the hypothesis that EpCAM plays a central role ...

View Cultrex 3-D Spheroid Basement Membrane Extract Cell Invasion Assay, 96-well, Cell Culture Products for Basement Membrane Extracts from R&D Systems.

Results show that Δ9-tetrahydrocannabinol reduces tumor growth, tumor number, and the amount/severity of lung metastases in MMTV-neu mice.[4] Cannabinoids induce ICAM-1, thereby conferring TIMP-1 induction and subsequent decreased cancer cell invasiveness thus inhibits lung cancer invasion and metastasis.[5]. Non-small cell lung cancer (NSCLC) is the leading cause of cancer deaths worldwide. Researchers have observed expression of CB1 (24%) and CB2 (55%) in NSCLC patients. They have also shown that the treatment of NSCLC cell lines (A549 and SW-1573) with CB1/CB2- and CB2-specific agonists Win55,212-2 and JWH-015, respectively, significantly attenuated random as well as growth factor-directed in vitro chemotaxis and chemoinvasion in these cells.[6]. Researchers in lung cancers also reported that they observed significant reduction in focal adhesion complex, which plays an important role in cancer migration. Medical marijuana significantly inhibited in vivo tumor growth and lung metastasis ...

Real‐time imaging. Cells were seeded in a Lab‐Tek Chambered #1.0 Borosilicate Coverglass System (Nalgene Nunc International, Rochester, NY, USA) and were mounted on a Zeiss Axiovert 200M microscope for live‐cell imaging (5% CO2; 37°C) for 2-14 h. Phase‐contrast images were captured every 2 min using a Photometics Coolsnap CCD camera (Scientific, Tuscon, AZ, USA). Images were processed using the Metamorph software (Universal imaging, Downington, PA, USA). Several protrusions was scored by off‐line analysis of the generated videos and plotted as means±s.e.m. For real‐time fluorescence imaging, cells were placed on a Leica SP5 inverted microscope equipped with a × 63 1.3NA glycerol objective. Cells were maintained in Leibovitz‐15‐buffered medium (Invitrogen, Breda, The Netherlands) at 37°C in a climate chamber.. Invasion assay. For in vitro invasion assays, 24‐well BioCoat matrigel invasion chambers (#354480, BD Biosciences, Alphen aan den Rijn, The Netherlands) were used ...

Strongylophorine-26, a new meroditerpenoid, was recently identified as an inhibitor of cancer cell invasion. This study was undertaken to characterize its mechanism of action. We find that strongylophorine-26 inhibits the motility of MDA-MB-231 breast carcinoma cells on a plastic surface. Upon addition of strongylophorine-26, rapid cell contraction and depolarization occurred, followed by spreading and flattening of the entire cell. Treated cells exhibited increased membrane ruffling throughout and extended lamellipodia in all directions. Strongylophorine-26 induced a decrease in actin stress fibers, a dramatic increase in the size and number of focal adhesions, and the appearance of a dense meshwork of actin filaments around the cell periphery. Strongylophorine-26 caused a transient activation of the small GTPase Rho and treatment with the Rho inhibitor C3 exoenzyme abrogated the anti-invasive activity of strongylophorine-26. These effects are distinct from those of many motility and ...

Effective anti‐tumour immune response requires appropriate recruitment and activation of immune cells. However, despite expression of tumour antigens in most tumours, including bladder tumours (Nishiyama et al, 2001; Sharma et al, 2003), escape from T‐cell immunity is more often the rule rather than an exception. In this study, we examined and compared the immune response going on during development of bladder tumours induced by two cell lines: MB49 and its more invasive variant MB49‐I. Our analysis of adaptive immune response during MB49 and MB49‐I development and exploration of molecules secreted by both tumours showed that MB49‐I has developed two mechanisms to acquire invasion properties: loss of putative tumour antigens and overexpression of decorin.. The expression of the male transplantation H‐Y antigens by MB49 was shown to induce an anti‐tumour immune response when injected in female mice (Halak et al, 1999). Our results showed that, in stark contrast to MB49, MB49‐I has ...

Glioblastoma is one of the deadliest forms of cancer, in part because of its highly invasive nature. The tumor suppressor PTEN is frequently mutated in glioblastoma and is known to contribute to the invasive phenotype. However the downstream events that promote invasion are not fully understood. PTEN loss leads to activation of the atypical protein kinase C, PKCι. We have previously shown that PKCι is required for glioblastoma cell invasion, primarily by enhancing cell motility. Here we have used time-lapse videomicroscopy to more precisely define the role of PKCι in glioblastoma. Glioblastoma cells in which PKCι was either depleted by shRNA or inhibited pharmacologically were unable to coordinate the formation of a single leading edge lamellipod. Instead, some cells generated multiple small, short-lived protrusions while others generated a diffuse leading edge that formed around the entire circumference of the cell. Confocal microscopy showed that this behavior was associated with altered behavior

A small subpopulation of highly adaptable breast cancer cells within a vastly heterogeneous population drives cancer metastasis. Here we describe a function-based strategy for selecting rare cancer cells that are highly adaptable and drive malignancy. Although cancer cells are dependent on certain nutrients, e.g., glucose and glutamine, we hypothesized that the adaptable cancer cells that drive malignancy must possess an adaptable metabolic state and that such cells could be identified using a robust selection strategy. As expected, more than 99.99% of cells died upon glutamine withdrawal from the aggressive breast cancer cell line SUM149. The rare cells that survived and proliferated without glutamine were highly adaptable, as judged by additional robust adaptability assays involving prolonged cell culture without glucose or serum. We were successful in isolating rare metabolically plastic glutamine-independent (Gln-ind) variants from several aggressive breast cancer cell lines that we tested. ...

The pSUPER.retro (Oligoengine) RNA interference system was used to achieve stable expression of siRNAs. Oligonucleotides targeted to calpain 2 or PTP1B mRNA as well as a nonsilencing control were synthesized by Integrated DNA Technologies, annealed, and cloned into the pSUPER.retro.puro vector according to manufacturers instructions. Retroviral transfection was performed as described previously (Franco et al., 2004a). Wild-type MTLn3 cells were infected at 32°C for 6 h and allowed to recover in growth medium for 24 h before selection with 1 μg/ml puromycin for 4-5 d. Target sequences for calpain 2 in MTLn3 cells: control, 5′-TTCTCCGAACGTGTCACGT-3′; Capn2 si-A, 5′-AGGCCTATGCCAAGATCAA-3′; and Capn2 si-B, 5′-GAATGGCGATTTCTGCATC-3′. Target sequences for PTP1B in MTLn3 cells: PTP1B si-A, 5′-GCTGACACTGATCTCTGAA-3′; and PTP1Bsi-B, 5′-CAGGAGGAGCCTTGGTGTC-3′. Target sequences for human calpain 2 have been described previously (Su et al., 2006). Target sequences for cortactin: ...

Hyaluronan (HA), a structural component in the extracellular matrix (ECM), has been recognized as a signaling molecule. It is important during various biological activities such as embryogenesis, angiogenesis, wound healing and tumor progression. Increased amount of hyaluronan during embryonic development is necessary for cell migration and differentiation, but the increased production of hyaluronan by tumor cells or tissue fibroblasts is correlated to poor prognosis for tumor progression and chronic inflammation, respectively. Therefore, understanding the mechanisms regulating HA-enriched matrices and the roles of HA in the biological functions is of fundamental biological importance.. Four novel findings are described in this thesis: (1) HA fragments (HA12) and the known angiogenic factor FGF-2 promote endothelial cell differentiation by induction of common but also distinct sets of genes, particularly, upregulation of the chemokine CXCL1/GRO1 gene is necessary for HA12-induced angiogenesis ...

Transforming growth factor-beta (TGF-beta) is a secreted polypeptide that signals via receptor serine/threonine kinases and intracellular Smad effectors. TGF-beta inhibits proliferation and induces apoptosis in various cell types, and accumulation of loss-of-function mutations in the TGF-beta receptor or Smad genes classify the pathway as a tumor suppressor in humans. In addition, various oncogenic pathways directly inactivate the TGF-beta receptor-Smad pathway, thus favoring tumor growth. On the other hand, all human tumors overproduce TGF-beta whose autocrine and paracrine actions promote tumor cell invasiveness and metastasis. Accordingly, TGF-beta induces epithelial-mesenchymal transition, a differentiation switch that is required for transitory invasiveness of carcinoma cells. Tumor-derived TGF-beta acting on stromal fibroblasts remodels the tumor matrix and induces expression of mitogenic signals towards the carcinoma cells, and upon acting on endothelial cells and pericytes, TGF-beta ...

TY - JOUR. T1 - [Diagnosis of the depth of gastric cancer invasion by endoscopic ultrasonography].. AU - Yoshino, Junji. AU - Inui, Kazuo. AU - Kobayashi, Takashi. AU - Miyoshi, Hironao. AU - Kosaka, Toshihito. AU - Tomomatsu, Yuichiro. AU - Yamamoto, Satoshi. AU - Narita, Yasuki. AU - Torii, Yoshinori. PY - 2012/10. Y1 - 2012/10. N2 - Endoscopic ultrasonography (EUS) is useful to diagnose the depth of invasion because of obtaining tomographic image of gastric cancer. Stomach layer has a 5-layer structure. Gastric cancer is visualized as low echoic tumor image by EUS. Massive invasion of gastric cancer is viewed as low echoic and clear boundary image. Diffuse invasion is imaged unclear boundary echo and visualized thick layer with remaining layer structure. Invasion depth of gastric cancer by EUS is diagnosed according to level of wall destruction. When depressed type cancer has ulceration in cancer nest, echoic image is modified with fibrous tissue. The diagnostic criteria of depressed type ...

Malignant progression in cancer requires populations of tumor-initiating cells (TICs) endowed with unlimited self renewal, survival under stress, and establishment of distant metastases. Additionally, the acquisition of invasive properties driven by epithelial-mesenchymal transition (EMT) is critical for the evolution of neoplastic cells into fully metastatic populations. Here, we characterize 2 human cellular models derived from prostate and bladder cancer cell lines to better understand the relationship between TIC and EMT programs in local invasiveness and distant metastasis. The model tumor subpopulations that expressed a strong epithelial gene program were enriched in highly metastatic TICs, while a second subpopulation with stable mesenchymal traits was impoverished in TICs. Constitutive overexpression of the transcription factor Snai1 in the epithelial/ TIC-enriched populations engaged a mesenchymal gene program and suppressed their self renewal and metastatic phenotypes. Conversely, ...

TY - JOUR. T1 - Cell migration and invasion in human disease. T2 - The Tks adaptor proteins. AU - Courtneidge, Sara A.. PY - 2012/2. Y1 - 2012/2. N2 - Cell invasion plays a central role in a wide variety of biological phenomena and is the cause of tumour growth and metastasis. Understanding the biochemical mechanisms that control cell invasion is one of the major goals of our laboratory. Podosomes and invadopodia are specialized cellular structures present in cells with physiological or pathological invasive behaviours. These transient structures are localized at the ventral cell surface, contain an array of different proteins and facilitate cell-substrate adhesion, as well as the local proteolytic activity necessary for extracellular matrix remodelling and subsequent cellular invasion. We have shown previously that the adaptor proteins and Src substrates Tks4 and Tks5 are required for podosome and invadopodia formation, for cancer cell invasion in vitro, and for tumour growth in vivo. We have ...

Following removal of the primary breast tumour by conservative surgery patients may still have additional malignant foci scattered throughout the breast. which are required to activate the MMP-2 were also increased. Confirming the role of MMP-2 and MT1-MMP radiation enhancement of cancer cell invasion was prevented by an MMP-2 inhibitor and an anti-MT1-MMP antibody. This study also demonstrated that radiation can potentially enhance the invasion ability by inducing the release of pro-invasive factors stored in the Matrigel. Conversely no enhancement of invasiveness was observed with the low metastatic cell line MCF-7. This lack of invasiveness correlated with the absence of the MMP-2 activator MT1-MMP in the MCF-7 cells. Radiotherapy is an efficient modality to treat breast cancer which could be further ABT-751 improved by inhibiting the pro-invasive gene upregulated by radiation. 4 This data also confirmed that proMMP-2 was absent from the FBS-free culture media (Figure 1B lane 2). ProMMP-2 is ...

Activation of an aberrant glycosylation pathway in cancer cells can lead to expression of the onco-foetal sialyl-Tn (sTn) antigen. STn is a truncated O-glycan containing a sialic acid α-2,6 linked to GalNAc α-O-Ser/Thr and is associated with an adverse outcome and poor prognosis in cancer patients. The biosynthesis of the sTn antigen has been linked to the expression of the sialytransferase ST6GalNAc1, and also to mutations in and loss of heterozygosity of the COSMC gene. sTn neo- or over-expression occurs in many types of epithelial cancer including gastric, colon, breast, lung, oesophageal, prostate and endometrial cancer. sTn is believed to be carried by a variety of glycoproteins and may influence protein function and be involved in tumour development. This review discusses how the role of sTn in cancer development and tumour cell invasiveness might be organ specific and occur through different mechanisms depending on each cancer type or subtype. As the sTn-antigen is expressed early in

Malignant progression in cancer requires populations of tumor-initiating cells (TICs) endowed with unlimited self renewal, survival under stress, and establishment of distant metastases. Additionally, the acquisition of invasive properties driven by epithelial-mesenchymal transition (EMT) is critical for the evolution of neoplastic cells into fully metastatic populations. Here, we characterize 2 human cellular models derived from prostate and bladder cancer cell lines to better understand the relationship between TIC and EMT programs in local invasiveness and distant metastasis. The model tumor subpopulations that expressed a strong epithelial gene program were enriched in highly metastatic TICs, while a second subpopulation with stable mesenchymal traits was impoverished in TICs. Constitutive overexpression of the transcription factor Snai1 in the epithelial/TIC-enriched populations engaged a mesenchymal gene program and suppressed their self renewal and metastatic phenotypes. Conversely, ...

Background: Cell invasion through extracellular matrix (ECM) is a critical step in tumor metastasis. To study cell invasion in vitro, the internal microenvironment can be simulated via the application of 3D models. Results: This study presents a method for 3D invasion examination using microcarrier-based spheroids. Cell invasiveness can be evaluated by quantifying cell dispersion in matrices or tracking cell movement through time-lapse imaging. It allows measuring of cell invasion and monitoring of dynamic cell behavior in three dimensions. Here we show different invasive capacities of several cell types using this method. The content and concentration of matrices can influence cell invasion, which should be optimized before large scale experiments. We also introduce further analysis methods of this 3D invasion assay, including manual measurements and homemade semi-automatic quantification. Finally, our results indicate that the position of spheroids in a matrix has a strong impact on cell ...

Background:. Esophageal cancer (EC) is an aggressive malignancy with increasing incidence and poor outcome (1). New therapeutic strategies are urgently required. The phosphatidylinositol 3-kinase (PI3K)/AKT signal pathway has been documented as a central hub for the malignant behaviors of cancer cells (2). However, the functional role and therapeutic effect of PI3K/AKT inhibitors in esophageal cancer metastasis is underappreciated.. Aim:. We aim to study the clinical significance of PI3K/AKT signaling pathway in EC metastasis and evaluate the therapeutic effect of PI3K/AKT-targeted therapy.. Methods:. A highly invasive cancer cell line (KYSE410-I3) was established by serial selection of the EC cells invading through the matrigel-coated Boyden chamber. Cell migration and invasion were determined using Boyden chamber migration and invasion assays. Western blot and immunohistochemistry were used to detect protein expressions in cell lysates and in a tissue microarray containing 40 pairs of ...

There are few data on the long-term outcome of patients with microinvasive (T1mi) breast cancer. Moreover, predictors of lym ph node involvement and the im pact of multifocal microinvasion are not wel

• Fifty breasts with nonpalpable ductal carcinoma in situ (DCIS) were examined for the presence of microinvasion, multicentricity, and number of involved ducts

Purpose: Head and neck squamous cell carcinoma (HNSCC) is one of the 10 most common cancers with a 50% five-year survival rate, which has remained unchanged for the past three decades. One of the major reasons for the aggressiveness of this cancer is that HNSCCs readily metastasize to cervical lymph nodes that are abundant in the head and neck region. Hence, discovering new molecules controlling the metastatic process as well as understanding their regulation at the molecular level are essential for effective therapeutic strategies.. Experimental Design: Rab25 expression level was analyzed in HNSCC tissue microarray. We used a combination of intravital microscopy in live animals and immunofluorescence in an in vitro invasion assay to study the role of Rab25 in tumor cell migration and invasion.. Results: In this study, we identified the small GTPase Rab25 as a key regulator of HNSCC metastasis. We observed that Rab25 is downregulated in HNSCC patients. Next, we determined that reexpression of ...

Cancer cell invasion is one of the crucial events in local spreading, growth, and metastasis of tumors. First evidence suggesting an anti-invasive action was published by Nithipatikom et al. (2004) who showed that 2-AG inhibits invasion of androgen-independent prostate cancer cells by a mechanism involving CB1 receptor activation. However, the precise mechanism leading to decreased invasiveness by cannabinoids remained elusive. Recently, several investigations have provided new insight into how cannabinoids could achieve their anti-invasive action.. In this context, several studies suggest a modulation of the MMP system by cannabinoids as part of their anti-invasive action. MMPs belong to a group of enzymes exerting an important function during tumor invasion, metastasis, and angiogenesis through degradation of ECM components (Curran and Murray, 2000; Stamenkovic, 2000). Of all MMPs, particularly MMP-2 and -9, are known to facilitate tumor invasion by proteolytic degradation of major basement ...

Mutant p53s (mutp53) increase cancer invasiveness by upregulating Rab-coupling protein (RCP) and diacylglycerol kinase-α (DGKα)-dependent endosomal recycling.

We identified previously that CRMP-1 is an invasion and metastasis suppressor in lung cancer cells (9). CRMP-1 expression is negatively associated with poor overall survival and early postoperative relapse in lung cancer patients (9). The connective tissue growth factor can inhibit lung adenocarcinoma invasion and metastasis by CRMP-1-dependent pathway and mediated through an integrin αvβ3 and αvβ5 regulated signaling (29). However, the detail mechanism of invasion suppressor function of CRMP-1 and its regulation were still not clear.. In this study, we identified a region between nucleotides -100 and -180 containing putative Sp1 and C/EBPα transcriptional regulatory elements as the basal promoter region of the novel invasion suppressor gene, CRMP-1. Overexpression of Sp1 suppressed CRMP-1 promoter activity and CRMP-1 protein expression, whereas overexpression of C/EBPα enhanced expression from the CRMP-1 promoter. Our data also showed that COX-2 overexpression decreased CRMP-1 mRNA and ...

A cell surface receptor mediating cell adhesion to the EXTRACELLULAR MATRIX and to other cells via binding to LAMININ. It is involved in cell migration, embryonic development, leukocyte activation and tumor cell invasiveness. Integrin alpha6beta1 is the major laminin receptor on PLATELETS; LEUKOCYTES; and many EPITHELIAL CELLS, and ligand binding may activate a number of signal transduction pathways. Alternative splicing of the cytoplasmic domain of the alpha6 subunit (INTEGRIN ALPHA6) results in the formation of A and B isoforms of the heterodimer, which are expressed in a tissue-specific manner. . ...

A cell surface receptor mediating cell adhesion to the EXTRACELLULAR MATRIX and to other cells via binding to LAMININ. It is involved in cell migration, embryonic development, leukocyte activation and tumor cell invasiveness. Integrin alpha6beta1 is the major laminin receptor on PLATELETS; LEUKOCYTES; and many EPITHELIAL CELLS, and ligand binding may activate a number of signal transduction pathways. Alternative splicing of the cytoplasmic domain of the alpha6 subunit (INTEGRIN ALPHA6) results in the formation of A and B isoforms of the heterodimer, which are expressed in a tissue-specific manner. . ...

Upregulation of the extracellular signal-regulated kinase (ERK) pathway has been shown to contribute to tumour invasion and progression. Since the two predominant ERK isoforms (ERK1 and ERK2) are highly homologous and have indistinguishable kinase activities in vitro, both enzymes were believed to be redundant and interchangeable. To challenge this view, here we show that ERK2 silencing inhibits invasive migration of MDA-MB-231 cells, and re-expression of ERK2 but not ERK1 restores the normal invasive phenotype. A detailed quantitative analysis of cell movement on 3D matrices indicates that ERK2 knockdown impairs cellular motility by decreasing the migration velocity as well as increasing the time that cells spend not moving. We used gene expression arrays to identify rab17 and liprin-β2 as genes whose expression was increased by knockdown of ERK2 and restored to normal levels following re-expression of ERK2, but not ERK1. Both Rab17 and Liprin-β2 play inhibitory roles in the invasive ...

We investigated whether p21 cooperates with a p53 mutant. R273H is a naturally occurring mutation that abolishes the DNA binding and thus the trans‐activating activity of p53 [3]. Therefore, in contrast to p53wt expression, p53R273H expression in H1299 cells failed to induce p21 and Mdm2 (Fig 4D, left). Slug protein levels and cellular invasiveness were not markedly altered after expressing p53R273H, but decreased when p53R273H and p21 were co‐expressed. Consistent with this, p53R273H and p21 co‐expression elevated Slug ubiquitination to considerably higher levels than p53R273H expression alone did (Fig 4D, right). These results provide support for the ability of p53R273H to cooperate with p21 in promoting Slug ubiquitination/degradation and thus suppressing cell invasion. Our data also suggest that p53 can contribute to tumor suppression even after the loss of its trans‐activating activity. However, our results are in contrast with a previous report that shRNA‐mediated knockdown of ...

Hypoxia plays a key role in tumour cell survival, invasion, and metastasis. An increasing number of studies have attemptedto characterize the tumour response to hypoxia and to identify predictive markers of disease. Here we show that hypoxiaincreases tumour cell invasion and migration by the modulation of Rab11, an important molecule for vesicular trafficking.In our study, we found that Rab11, together with the activation of Rac1, could stimulate invasion and migration of cervicalcancer cell lines HeLa/SiHa in hypoxia. Activation of Rac1 activity by hypoxia seems to be central to carcinoma invasion.We also found that these effects could be related to the integrin αvβ3. In addition, we studied the molecular pathway for thisprocess. Our results showed that in cervical cancer cell lines HeLa/SiHa, Rac1 activation in hypoxia could stimulateinvasion and migration, and this process was mediated by integrin αvβ3-mediated FAK and PI3K phosphorylation.Furthermore, hypoxia induced a dramatic increase ...

p53 Target Gene SMAR1 Is Dysregulated in Breast Cancer: Its Role in Cancer Cell Migration and Invasion. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.

Creating genetically modified rodent models to study pathologic conditions for cancer invasiveness, metastasis, DNA repair, cell cycle progression, apoptosis.

Nandhu, MS, et al. (2017) Tumor-derived fibulin-3 activates pro-invasive NF-κB signaling in glioblastoma cells and their microenvironment. Oncogene. 2017 Apr 17;. PM ID: ...

Data Availability StatementThe data used to aid the findings of this study are available from your corresponding authors upon request. invasion of HepG2, Hep3B, Huh7, and SMMC-7721 cells. Results of transwell invasion assays of Hep3B, HepG2, Huh7, Rabbit Polyclonal to ELOVL1 and SMMC-7721 cells following treatment with apatinib for 24?h (unique magnification, 200). Quantification of the invasion in Hep3B, HepG2, Huh7, and SMMC-7721 cells (?? shows 0.01 vs. 0? 0.05; Number 3(a)). Western blot analysis showed that apatinib also downregulated the manifestation of the abovementioned MMPs in the protein level (Number 3(b)). Open Ginkgolide C in a separate window Number 3 Real-time PCR and Western blot analysis of manifestation levels of MMP family genes in Hep3B and HepG2 liver cells. (a) Real-time PCR analysis of mRNA levels of MMP-1, MMP-2, MMP-3, MMP-7, MMP-9, MMP-10, MMP-11, and MMP-16. Compared with the control group, the manifestation levels of the mRNAs of MMP-1, MMP-2, MMP-3, MMP-7, MMP-9, ...

Leung CS, Yeung TL, Yip KP, Pradeep S, Balasubramanian L, Liu J, Wong KK, Mangala LS, Armaiz-Pena GN, Lopez-Berestein G, Sood AK, Birrer MJ, Mok SC; Calcium-dependent FAK/CREB/TNNC1 signalling mediates the effect of stromal MFAP5 on ovarian cancer metastatic potential.; Nat Commun, 2014 PubMed Europe PMC Scholia ...

Nasal and paranasal fibrosarcoma is characterized by a malignant tumor based in the connective tissue of the nasal passage or in the surrounding area. A fibrosarcoma specifically refers to the abnormal development of cells. It is typically a slow and invasive process that progresses to a critical state before it is discovered.

Zinn PO, Mahajan B, Majadan B, Sathyan P, Singh SK, Majumder S, Jolesz FA, Colen RR. Radiogenomic mapping of edema/cellular invasion MRI-phenotypes in glioblastoma multiforme. PLoS One. 2011;6 (10) :e25451.

IL-35 Over-expression is Associated with Genesis of Gastric Cancer IL-35;gastric cancer;Ki-67;Bcl-2; Overexpression of interleukin (IL)-35 has been found in a variety of malignancies, but the expression status in gastric cancer has yet to be elucidated clearly. In the present study, positive expression of EBI3 and p35 was 63.3% and 70.0% of cases, respectively. EBI3 expression was strongly related with larger tumor size and invasion depth (P

infections by direct invasion and systemic dissemination such as bloodstream infections, septic arthritis, meningitis [ 1-5 ]. Staphylococcal strains with richer virulence arsenal are responsible also for toxin mediated diseases such as toxic shock and. ...

poorly enhancing pancreatic tail mass with extension into surrounding fat and direct invasion of the adjacent small bowel loops and left adrenal gland ...

Inflammation is recognized as a key factor in carcinogenesis; however, the precise mechanisms by which the immune response affects cancer development remain largely unknown. Mutation of the p53 tumor suppressor has been linked to a heightened proinflammatory microenvironment, prompting Di Minin, Bellazzo, and colleagues to study whether activation of inflammatory responses by mutant p53 is involved in driving cancer progression and metastasis. In support of this idea, silencing of mutant p53 in breast cancer cells inhibited cell migration and enhanced apoptosis in response to the proinflammatory cytokine TNFα. Transcriptional profiling revealed a set of TNFα-inducible NFκB target genes with proinvasive and immunogenic functions, which were regulated in a mutant p53-dependent manner. Intriguingly, chemical inhibition of pathways downstream of TNFα showed that, whereas the majority of genes were NFκB-dependent, inhibition of JNK upregulated a subset of genes specifically in cells depleted for ...

The tumour focus/foci must invade into nonspecialized interlobular or interductal stroma (extension of the lesion beyond the confines of a ductolobular unit, development of a desmoplastic stroma). The cells deemed to be invasive must be distributed in a fashion (non-organoid pattern) that does not represent tangential sectioning of a duct or a lobular structure with in-situ carcinoma. Tangentially sectioned in-situ carcinoma foci that simulate microinvasion are distributed in the specialized periductal and intralobular stroma and usually occur as compact groups of tumour cells that have a smooth border surrounded by a circumferential layer of myoepithelial cells and stroma or a thickened basement membrane (29). At sites of microinvasive foci, tumour cells are distributed singly or as small groups that have irregular shapes reminiscent of conventional invasive carcinoma with no particular orientation (29). There is complete absence of surrounding basement membrane and myoepithelial cells: ...