• It is well-described that leptin receptor (LepR) + perivascular stromal cells provide a major source of bone-forming osteoblasts in adult and aged bone marrow. (nature.com)
  • These Fgfr3-creER -marked endosteal stromal cells contribute to a stem cell fraction in young stages, which is later replaced by Lepr-cre -marked stromal cells in adult stages. (nature.com)
  • Further, Fgfr3 + endosteal stromal cells give rise to aggressive osteosarcoma-like lesions upon loss of p53 tumor suppressor through unregulated self-renewal and aberrant osteogenic fates. (nature.com)
  • These Fgfr3 + stem/stromal cells with OCT identities are abundant in the young bone marrow and depleted in the old bone marrow, denoting their transitional nature. (nature.com)
  • Overall, our findings indicate that Fgfr3 + endosteal stem/stromal cells with OCT identities dictate active and aggressive osteogenesis, identifying these cells as an important regulator of long-term bone homeostasis. (nature.com)
  • Mesenchymal stem/stromal cells (MSCs) are increasingly used as an intravenously applied cellular therapeutic. (stemcellslab.net)
  • Later, Arnold Caplan's group described mesenchymal stem/stromal cells (MSCs) as multipotent mesenchymal cell populations which can differentiate into several tissue types, and demonstrated roles for MSCs in the regeneration of bone, cartilage or ligaments in animal and clinical studies [2-4]. (stemcellslab.net)
  • This concept started from the observation that bone marrow transplantation can provide stromal cells able to synthesize intact collagen type I, replacing deficient patient cell function and ameliorating disease symptoms [5]. (stemcellslab.net)
  • We have recently reported that mechanical manipulation of human adipose tissue without modification of tissue composition, structure and histology, that was totally comparable to that of the original source (see Experimental procedure for details), increased significantly the number of stromal cells bearing the expression of beta-tubulin III. (neurogelenmarche-usa.org)
  • We previously demonstrated that mesenchymal stem cells (MSCs) ameliorated experimental autoimmune uveoretinitis (EAU) in rats. (nature.com)
  • Our group recently reported that CD73 on the cell membrane also contributes to the immunomodulatory capacity of MSCs 3 , suggesting that MSCs exert their immunomodulatory properties in a multifactorial manner. (nature.com)
  • 6,7 Mesenchymal stem cells (MSCs) have also been isolated from other sources, such as bone marrow, 8 the placenta, 9 muscle, 10 or blood. (jcadonline.com)
  • Pivotal studies by the group of Horwitz in children with osteogenesis imperfecta, an inherited enzyme deficiency of collagen synthesis by mesenchymal cells in bone, opened the field for intravenous use of MSCs. (stemcellslab.net)
  • This implies homing of transplanted MSCs to sites in bone marrow and/or bone. (stemcellslab.net)
  • The tissue source of the MSCs was in most cases not decisive, and cells from various tissue sources were explored. (stemcellslab.net)
  • and signals from the injected cells were found early after administration of the MSCs at the highest frequencies in the lungs, followed by liver and spleen. (stemcellslab.net)
  • To minimize discrepancies and inconsistencies, and allow comparison of data generated in different laboratories, the International Society of Cellular Therapy (ISCT) has provided guidelines for the definition of MSCs based on (a) their plastic adhesion properties, (b) immunophenotype, and (c) multi-potent differentiation potential (Bourin et al. (neurogelenmarche-usa.org)
  • Although bone marrow fibrosis is seen in a variety of malignant and non-malignant disease states, the deposition of reticulin and collagen fibrosis in the bone marrow of patients with myelofibrosis is believed to be mediated by the myelofibrosis hematopoietic stem/progenitor cell, contributing to an impaired microenvironment favoring malignant over normal hematopoiesis. (haematologica.org)
  • Hematopoietic stem cell transplantation remains the only curative therapeutic approach that reliably results in resolution of bone marrow fibrosis in patients with myelofibrosis. (haematologica.org)
  • The bone marrow contains various populations of skeletal stem cells (SSCs) in the stromal compartment, which are important regulators of bone formation. (nature.com)
  • The term "transitional" emphasizes the unique feature of these cells that are particularly abundant in the young bone marrow. (nature.com)
  • In the 1970s, Friedenstein and colleagues [1] first reported that locally applied culture-expanded populations of bone marrow stroma-derived fibroblastic cells remained at their injection sites under the kidney capsule, where an ectopic hematopoiesis was initiated. (stemcellslab.net)
  • Moreover, children who received transplants approached growth curves similar to the children transplanted with allogeneic complete bone marrow [6]. (stemcellslab.net)
  • Unfortunately, HDC also kills more normal cells, especially the blood-producing stem cells in the bone marrow. (kahlertregionalcancer.org)
  • 2011). Stem cell frequency appears to be significantly higher in adipose tissue than in other tissues such as bone marrow (Bieback et al. (neurogelenmarche-usa.org)
  • 3 Myelofibrosis (MF) refers to the Philadelphia chromosome ( BCR-ABL1 )-negative myeloproliferative neoplasm (MPN) originating at the level of the multipotent hematopoietic stem cell. (haematologica.org)
  • To address this knowledge gap, we developed an in vivo hematopoietic stem cell (HSC)-based large-scale CRISPR knockout screening platform to enable the genetic interrogation of hematopoiesis and broad aspects of immune cell function in vivo. (biorxiv.org)
  • Mesenchymal stem cell (MSC)-based therapy for the treatment of autoimmune diseases has demonstrated a particular promise after its successful applications in both animal models and patients. (nature.com)
  • 1. Activation of adipose tissue and related mesenchymal stem cells: promotion of anti-inflammatory properties through SOX2 transcription factor and HuR RNA-binding protein modulation. (neurogelenmarche-usa.org)
  • Adipose tissue is a loose connective tissue composed of cells supported by an intracellular matrix as well as by vascular, lymphatic, and neural networks. (jcadonline.com)
  • 2004). Indeed, autologous transplant of adipose tissue is an established therapeutic procedure used for the repair of a variety of tissue damage. (neurogelenmarche-usa.org)
  • In this category of experimentation, besides the use of locally delivered trophic factors (such as brain-derived neurotrophic factor (BDNF)-, glial cell line-derived neurotrophic factor (GDNF)-, and fibroblast growth factor (FGF)-peptides or growth factors-gene-encoding vectors) [ 8 ], regionally grafted fetal or embryonic stem cell-derived neuronal precursors are frequently used [ 9 - 18 ]. (biomedcentral.com)
  • But even this Bill of Rights may be inadequate to cope with rapid developments further down the line, such as human cloning, cell and tissue replacement and embryonic stem cell techniques. (i-sis.org.uk)
  • We discuss these properties with examples both from the hematopoietic and embryonic stem cell (ESC) systems. (lu.se)
  • We discuss the rationale of various anti-fibrogenic treatment strategies targeting the clonal hematopoietic stem/progenitor cell, aberrant signaling pathways, fibrogenic cytokines, and the tumor microenvironment. (haematologica.org)
  • Intradermal adipocyte progenitor cells are activated toward the end of the telogen phase to proliferate and differentiate into mature adipocytes. (jcadonline.com)
  • Stem and progenitor cell populations are often heterogeneous, which may reflect stem cell subsets that express subtly different properties, including different propensities for lineage selection upon differentiation, yet remain able to interconvert. (lu.se)
  • To varying degrees, these fates also extend to the Such state stability is required in stem and progenitor cells to immediate progeny of stem cells, known as progenitor or support self-renewal and maintenance of the uncommitted transit-amplifying cells. (lu.se)
  • A key challenge is to understand how state, but must also afford flexibility in cell-fate choice to permit the different cell-fate options confronting stem and progenitor cell-type diversification and differentiation in response to cells are selected and coordinated such that adoption of a given intrinsic cues or extrinsic signals. (lu.se)
  • It has been found that some of the SVF cell types possess regenerative and anti-inflammatory potentials in damaged tissues due to their ability to secrete growth factors and anti-inflammatory molecules. (jcadonline.com)
  • Differentiation and integration of grafted cells in the host tissue were validated with immunofluorescence staining using human-specific antibodies. (biomedcentral.com)
  • They were found to be potent in situations such as tissue repair or severe inflammation. (stemcellslab.net)
  • 1999). Recent studies have shown that the potentiality of tissue regeneration can be enhanced using adipose derived stem cells (hADSCs) (see Gimble et al. (neurogelenmarche-usa.org)
  • We have suspected that mechanical forces may be of key relevance in adult tissue plasticity as it occurs during embryogenesis, tissue remodeling and mitotic and motile behavior of cells (Vogel et al, 2006). (neurogelenmarche-usa.org)
  • In these studies, however, transplanted cells were followed, if at all, at the site of transplantation, and biodistribution was not an issue. (stemcellslab.net)
  • In reality, gene somatic cells to a pluripotent cell state by a handful of transcrip- expression is graded, making the potential gene expression tion factors (Takahashi and Yamanaka, 2006). (lu.se)
  • We found that MSC-Exo greatly reduced the intensity of ongoing EAU as their parent cells by reducing the infiltration of T cell subsets, and other inflammatory cells, in the eyes. (nature.com)
  • Understanding cell-fate decisions in stem cell populations is a major goal of modern biology. (lu.se)
  • These results suggest that MSC-Exo effectively ameliorate EAU by inhibiting the migration of inflammatory cells, indicating a potential novel therapy of MSC-Exo for uveitis. (nature.com)
  • An immune system is a system of biological structures and processes within an organism that protects against disease by identifying and killing pathogens and tumor cells. (absoluteastronomy.com)
  • Distinct functions of macrophage-derived and cancer cell-derived cathepsin Z combine to promote tumor malignancy via interactions with the extracellular matrix. (uni-freiburg.de)
  • Similarly, GATA-1 has been shown to induce lineage switching expression values even if, for simplicity, we assume only ``on'' of committed cells in hematopoiesis, first in cell lines (Kulessa and ``off'' states for each gene. (lu.se)
  • Evidence the fate of stem cells has broad ramifications for biomedical suggests that during development or differentiation, cells make science from elucidating the causes of cancer to the use of very precise transitions between apparently stable ``network stem cells in regenerative medicine. (lu.se)
  • 26,27 Dermal adipocytes are organized in small clusters under the reticular dermis and interact with the hair follicular cells regulating the hair cycle. (jcadonline.com)
  • In cell biology, the nucleus is a membrane-enclosed organelle found in eukaryotic cells. (absoluteastronomy.com)
  • In terminally differentiated cell fate is coupled to appropriate regulation of the alternative cells, transcriptional networks must be stable and irreversible, pathways. (lu.se)
  • 1 Department of Cell Growth and Differentiation, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan. (jci.org)
  • Children who received transplants showed improved growth rates and started to synthesize intact bone. (stemcellslab.net)
  • Cancer , known medically as a malignant neoplasm, is a large group of different diseases, all involving unregulated cell growth. (absoluteastronomy.com)
  • 2008). Historically, this concept is highlighted by the experi- factors are key intrinsic regulators of these fate decisions and mental phenomenon of lineage reprogramming, for example, that fate choice involves modulating networks of transcription by the conversion of fibroblasts to muscles cells following trans- factors. (lu.se)
  • The power of the thiol proteinases to cleave a multitude of substrates in response to calcium mineral activation allows their involvement in a variety of cell processes offering cell motility, sign transduction, apoptosis, cell differentiation and legislation of the cytoskeleton (3). (exposed-skin-care.net)
  • Identification of PARD3 signature on PARD3 deficient H157 cell line, reconstituting the expression of PARD3 gene, with a wt and a mutant form. (nih.gov)
  • Inflammation is part of the complex biological response of vascular tissues to harmful stimuli, such as pathogens, damaged cells, or irritants. (absoluteastronomy.com)
  • Of note, we define OCT identities as a state with some characteristics of both osteoblasts and chondrocytes, instead of cell-type plasticity between osteoblasts and chondrocytes. (nature.com)
  • The in vitro effects of MSC-Exo on immune cell migration and responder T cell proliferation were examined by chemotactic assays and lymphocyte proliferation assays, respectively. (nature.com)
  • The discovery of this new class of SSCs is based on the conjunction of evidence from unbiased single-cell molecular profiling and functional dissection of the BMSC lineage hierarchy using in vivo cell lineage analysis. (nature.com)
  • however, a variety of other cell types are found as well, collectively labeled as stromal vascular fraction (SVF). (jcadonline.com)
  • The cytosol or intracellular fluid is the liquid found inside cells, that is separated into compartments by membranes. (absoluteastronomy.com)
  • The cell- ations in these signals (see Table 1 for a glossary of terms). (lu.se)
  • In cancer, cells divide and grow uncontrollably, forming malignant tumors, and invade nearby parts of the body. (absoluteastronomy.com)
  • The biological properties and clinical potential of stem cells elicit that are generated must not be unduly sensitive to small fluctu- continued scientific, commercial, and public interest. (lu.se)
  • explosion further, consider that a fictitious small genome with 2002) More recently and more dramatically, the potential for 260 genes would host the same number of combinations as cell state conversions is exemplified by the reprogramming of the number of atoms in the visible universe! (lu.se)
  • Magnetic resonance imaging volume reconstruction and immunofluorescence analysis of grafted cell survival showed near complete injury-cavity-filling by grafted cells and development of putative GABA-ergic synapses between grafted and host neurons. (biomedcentral.com)
  • The treatment strategy utilizing stem cell transplant is an attempt to restore the blood-producing stem cells after HDC has reduced them to dangerously low levels. (kahlertregionalcancer.org)
  • These cells, surrounding the hair follicles, secrete signaling molecules that control the progression of the hair cycle. (jcadonline.com)
  • Here we characterized the effect of intraspinal grafting of clinical grade human fetal spinal cord-derived neural stem cells (HSSC) on the recovery of neurological function in a rat model of acute lumbar (L3) compression injury. (biomedcentral.com)
  • These procedures are likely to lead to an increase in international trafficking of human cells, eggs and embryos. (i-sis.org.uk)
  • 2006). Furthermore, several recently published reports claim that hADSCs are capable under appropriate stimulation of differentiating into other different cell types such as neurons, cardiomyocytes, hepatocytes and pancreatic cells (Schäffler et al. (neurogelenmarche-usa.org)
  • 1995) and subsequently in primary cells (Heyworth et al. (lu.se)
  • Cells use it as the primary source of energy and a metabolic intermediate. (absoluteastronomy.com)