• miRNAs are a family of small non-coding RNAs that emerged as significant and versatile regulators involved in regulation of immune responses. (frontiersin.org)
  • MicroRNAs (miRNAs) are highly conserved, single-stranded, small non-coding RNAs that have been shown to act as essential regulators of gene expression at the posttranscriptional level. (frontiersin.org)
  • This study aimed to identify the role of AA in oxidized low-density lipoprotein (ox-LDL)-induced vascular smooth muscle cell (VSMC) behaviours and to explore the effects of microRNAs (miRNAs). (hindawi.com)
  • MicroRNAs (miRNAs) are small noncoding sequences involved in the negative regulation of gene expression. (hindawi.com)
  • Several studies have shown that miRNAs play multiple roles in the phenotypic transformation, migration, and proliferation of VSMCs by inhibiting ERK1/2 activation [ 11 , 12 ], partly by regulating the tissue inhibitor of metalloproteinases (TIMPs)-MMPs and p21-cyclins interactions [ 13 - 18 ]. (hindawi.com)
  • MicroRNAs (miRNAs) are single-stranded, endogenously expressed, short, noncoding RNAs with a length of 18-25 nucleotides. (nature.com)
  • microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. (cancerindex.org)
  • miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. (cancerindex.org)
  • MicroRNAs (miRNAs) negatively regulate the expression of the target genes by binding to ʻseed sequences' in the 3'‑untranslated region (3'‑UTR) mRNA transcripts, and the variants within or nearby ʻseed sequences' may compromise or enhance miRNA/mRNA interaction leading to either ʻloss‑of‑function' or ʻgain‑of‑function' effects. (spandidos-publications.com)
  • MicroRNAs (miRNAs), a class of endogenous small non-coding RNAs of 20-25 nucleotides, modulate the expression of genes at the post-transcriptional level ( 7 ). (spandidos-publications.com)
  • miRNAs bind to complementary sequences present in the 3′-untranslated regions (3′-UTR) of target gene mRNAs and, thus, regulate translational interference or degradation of mRNAs ( 8 ). (spandidos-publications.com)
  • Recent studies have shown that interleukin (IL)-1β is a key inflammatory mediator in acute gouty arthritis (GA), and its level is regulated by microRNAs (miRNAs). (biomedcentral.com)
  • Combining bioinformatics and miRNA expression profiles, we found five miRNAs (hsa-miR-30c-1-3p, hsa-miR-488-3p, hsa-miR-550a-3p, hsa-miR-663a, and hsa-miR-920) that possibly target IL-1β. (biomedcentral.com)
  • Recent genome-wide molecular genetic studies have identified several protein-coding genes and microRNAs (miRNAs) significantly associated with BD. (en-journal.org)
  • MicroRNAs (miRNAs or miRs) are small non-coding RNAs that participate in diverse cellular processes and negatively regulate gene expression at the post-transcriptional level by binding with 3′-untranslated regions (3′-UTRs) ( 2 - 4 ). (spandidos-publications.com)
  • In the case of RNA molecules that bind target RNA segments, such as microRNAs (miRNAs), the altered base pairing can change binding specificities. (biomedcentral.com)
  • DEFB1 expression after transfection with two micro RNAs (miRNAs), hsa-miR-186-5p and hsa-miR-340-5p, provided evidence that DEFB1 expression could be modulated by these miRNAs and hsa-miR-186-5p had a higher binding efficiency with DEFB1. (cdc.gov)
  • Simple Summary: This study identified a set of 73 microRNAs (miRNAs) that can accurately detect lung cancer tumors from normal lung tissues. (cdc.gov)
  • Based on the consistent expression patterns associated with patient survival outcomes and in tumors vs. normal lung tissues, 10 miRNAs were considered to be putatively tumor suppressive and 4 miRNAs were deemed as oncogenic in lung cancer. (cdc.gov)
  • This study identified a set of 73 microRNAs (miRNAs) that classified lung cancer tumors from normal lung tissues with an overall accuracy of 96.3% in the training patient cohort (n = 109) and 91.7% in unsupervised classification and 92.3% in supervised classification in the validation set (n = 375). (cdc.gov)
  • Experimentally confirmed target genes were identified for the 73 diagnostic miRNAs, from which proliferation genes were selected from CRISPR-Cas9/RNA interference (RNAi) screening assays. (cdc.gov)
  • that asthma is intensively regulated by a variety of microRNAs (miRNAs). (cdc.gov)
  • MiRNAs are approximately 19- to 25-nucleotide estimated about 250,000 and mortality does not appear single-stranded, noncoding RNAs that exist in both to correlate well with prevalence. (cdc.gov)
  • Th)1 cells.5 Meanwhile, the function and immunity of with genetic predisposition, involving multiple cells, DCs are closely regulated by miRNAs. (cdc.gov)
  • DC demonstrated that miRNAs participate in airway maturation, while downregulation of let-7i significantly inflammatory regulation in asthma. (cdc.gov)
  • This class of noncoding RNAs is small, single stranded, and 19-25 nucleotide long that act as negative regulators involved in posttranscriptional silencing of the gene expression [ 5 ]. (hindawi.com)
  • ADAR3 contains an arginine-rich domain, shown in pink, which binds single-stranded RNA. (biomedcentral.com)
  • MicroRNAs are a class of small, single-stranded, noncoding RNA (~21-24 nt in length) that occur in the genomes of plants and animals. (biomedcentral.com)
  • Conclusion and Clinical Relevance: Examination of the pulmonary genetic profiles revealed differentially expressed genes and microRNAs following subchronic inhalation exposure to A. fumigatus. (cdc.gov)
  • BC-related differentially expressed microRNAs (DE-miRs) were recognized and assessed in the present study. (nature.com)
  • We previously identified differentially expressed microRNAs with liver-specific target genes in plasma from children with chronic hepatitis B. To further understand the biological role of these microRNAs in the pathogenesis of chronic hepatitis B, we have used the human liver cell line HepG2, with and without HBV replication, after transfection of hepatitis B virus expression vectors. (biomedcentral.com)
  • Furthermore, altered microRNAs may serve as potential biomarkers to evaluate fungal exposure. (cdc.gov)
  • Recent studies reported microRNAs as promising biomarkers for early cancer detection, accurate prognosis, and molecular targets for future treatment. (hindawi.com)
  • MicroRNAs are regulatory molecules and suggested as non-invasive biomarkers for molecular diagnostics and prognostics. (biomedcentral.com)
  • MicroRNAs are suggested as non-invasive biomarkers for molecular diagnostics and prognostics, and some microRNAs show promising results as therapeutic targets in human trials [ 1 - 3 ]. (biomedcentral.com)
  • How Reliable Are Gene Expression-Based and Immunohistochemical Biomarkers Assessed on a Core-Needle Biopsy? (lu.se)
  • The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. (cancerindex.org)
  • miRNA binding downregulates the expression of target mRNAs either by decreasing their stability or by inhibiting translation. (en-journal.org)
  • Although RNA editing has long been considered a relatively rare processing event, more recent research suggests that the vast majority of pre-mRNAs are edited [ 6 ]. (biomedcentral.com)
  • Although more and animals and plants and regulate gene/protein expression more progressions have been made about the through direct complementarity between their 5' region pathogenesis of asthma in recent years, the increasing and the 3' untranslated region of target mRNAs. (cdc.gov)
  • Objective: The impact of fungal viability on the pulmonary microRNA and messenger RNA profiles that regulate murine immune responses was evaluated following subchronic inhalation exposure to Aspergillus fumigatus conidia. (cdc.gov)
  • Upregulation of miR-488 and miR-920 could suppress MSU-induced IL-1β protein expression in THP-1 cells, but no significant difference in IL-1β messenger RNA levels was observed. (biomedcentral.com)
  • miR-128-5p directly targeted the 3′UTR-binding sequences of the p21 gene, negatively regulated p21 expression, and supported the proliferation of VSMCs. (hindawi.com)
  • Regarding the important role of microRNAs in breast cancer, investigating the molecular mechanisms of miRs and their impacts on breast cancer progression is critical. (nature.com)
  • Previous studies have demonstrated that microRNAs (miRs) serve important roles in the progression of human cancer types, including pancreatic cancer (PC), a highly lethal malignancy. (spandidos-publications.com)
  • A number of studies have demonstrated that altered expression of miRs serves critical roles in human cancers by directly regulating cell behaviors ( 5 - 7 ). (spandidos-publications.com)
  • However, to the best of our knowledge, the miRs that regulate RUNX2 expression in tumors are unknown. (spandidos-publications.com)
  • Additionally, transfection with 50 nM miR‑125b mimics markedly reduced the mRNA and protein expression levels of TP53 in the cultured lens epithelial cells, and miR‑125b significantly induced apoptosis in the epithelial cells compared with negative control cells. (spandidos-publications.com)
  • TRIM13 inhibited cell proliferation and induced cell apoptosis by regulating NF-κB pathway in non-small-cell lung carcinoma cells. (cancerindex.org)
  • An aberrant miRNA expression could contribute to cancer development and progression [ 6 , 7 ] and could affect their target genes that are involved in many biological processes, such as cell differentiation, proliferation, apoptosis, metabolism, and development [ 8 ]. (hindawi.com)
  • Western blot was utilized to assess the effect of miR-183 on PTEN protein expression. (nature.com)
  • Scope includes mutations and abnormal protein expression. (cancerindex.org)
  • Overexpression of miR-488 and miR-920 could significantly inhibit the gene and protein expression of IL-8 and TNF-α in MSU-induced THP-1 cells. (biomedcentral.com)
  • We found that TRIM13 mRNA and protein expression was reduced in NSCLC tissues and cell lines in comparison to paired non-cancerous tissues and a human normal bronchial epithelial cell line, respectively. (cancerindex.org)
  • and cell differentiation ( SOX2 and TGFB3 ) as well as immunohistochemical assay for VEGFA, TP53, Bcl2, TGFB1, and Ki67 protein expression have been performed in 85 FFPE RCC tumor specimens. (hindawi.com)
  • The advanced pathological grade was associated with strong TGFB1, VEGFA, and Ki67 protein expression and absent Tp53 staining. (hindawi.com)
  • Pansensitive and panresistant genes to 21 NCCN-recommended drugs with concordant mRNA and protein expression were identified. (cdc.gov)
  • MicroRNAs regulating genes involved in the pulmonary immune responses were those with the greatest fold change. (cdc.gov)
  • This study demonstrates the roles of miR-488 and miR-920 in regulating the production of proinflammatory cytokines in the pathogenesis of GA. These findings suggest that miR-488 and miR-920 could serve as potential therapeutic targets in the treatment of GA. (biomedcentral.com)
  • Furthermore, we demonstrated that miR-21 regulates inflammatory responses through NF-κB signaling pathways. (frontiersin.org)
  • Therefore, it is important to describe their mechanisms of actions, expression patterns and possible target genes and cellular pathways with which they interact. (mdpi.com)
  • In addition, Ingenuity Pathway Analysis (IPA) integrated with PCR array data showed that the JAK1/STAT3 pathway was significantly altered in cells overexpressing DEFB1, suggesting this to be one of the pathways by which defensin regulates IAV replication in HBEpCs. (cdc.gov)
  • A single microRNA can have multiple downstream targets and affect a number of different networks and pathways [ 4 , 5 ]. (biomedcentral.com)
  • A-to-I editing is a mechanism that regulates and diversifies the transcriptome, but the full biological significance of ADARs is not understood. (biomedcentral.com)
  • Eukaryotic RNA transcripts can undergo a range of post-transcriptional modifications, which increase the diversity of the transcriptome without requiring increases in genome size. (biomedcentral.com)
  • However, the role of microRNA in mammalian tissue development and differentiation is still quite uncharacterized. (mdpi.com)
  • AA and the extracellular regulated protein kinase 1/2 (ERK1/2) blocker U0126 markedly inhibited migration, elevated smooth muscle 22 α (SM22 α ) expression, repressed VSMC proliferation, elevated miR-466f-3p and miR-425-3p expression, and suppressed miR-27a-5p and miR-128-5p expression in ox-LDL-induced VSMCs. (hindawi.com)
  • The miR-128-5p mimic promoted the migration and proliferation of VSMCs and suppressed p21, p27, and SM22ɑ expression. (hindawi.com)
  • The inhibitor increased p21, p27, and SM22ɑ expression and repressed the migration, phenotypic transformation, and proliferation of VSMCs. (hindawi.com)
  • The migration, phenotypic transformation, and proliferation of VSMCs lead to vascular wall remodeling, which is mediated by activation of extracellular regulated protein kinases 1/2 (ERK1/2) signalling [ 9 ]. (hindawi.com)
  • MicroRNAs constitute a pervasive post-transcriptional filter on protein or mRNA expression levels that are likely to control developmental timing, cellular differentiation, stress responses, metabolism and proliferation. (mdpi.com)
  • It has been proven that the miR-183 expression is up-regulated in tumor tissues and patient serum in BC, which indicates its possibly an oncogenic role 15 , 16 . (nature.com)
  • We found RCC tissues displayed significantly higher miR-34a expression level than their corresponding noncancerous tissues, particularly in chromophobic subtype. (hindawi.com)
  • MIR-34A has its own transcript and is expressed at higher levels than MIR-34B/C in most tissues, and this expression could be dysregulated in multiple diseases, especially in cancers [ 11 ]. (hindawi.com)
  • In the current study, low miR‑205 expression was revealed in PC tumor tissues and indicated poor prognosis in patients with PC. (spandidos-publications.com)
  • A-to-I editing, which is catalyzed by enzymes of the adenosine deaminase acting on RNA (ADAR) family, is most prevalent in the central nervous system (CNS) but occurs in many tissues [ 1 - 3 ]. (biomedcentral.com)
  • The expression level of the SFRP1 was highly varied across numerous pig tissues and it was down-regulated during porcine skeletal muscle development. (biomedcentral.com)
  • In addition, Kayed et al ( 15 ) demonstrated that RUNX2 was overexpressed in PC and could be regulated by certain cytokines, including transforming growth factor β1 and bone morphogenetic protein 2. (spandidos-publications.com)
  • Zhang et al cytokines, mediators and signals and closely related to demonstrated that microRNA let-7i was upregulated immune regulation. (cdc.gov)
  • The multifunctional regulator nuclear factor erythroid 2-related factor (Nrf2) is considered not only as a cytoprotective factor regulating the expression of genes coding for anti-oxidant, anti-inflammatory and detoxifying proteins, but it is also a powerful modulator of species longevity. (springer.com)
  • This study aimed to evaluate the expression levels of miR-34a and 11 of its bioinformatically selected target genes and proteins to test their potential dysregulation in RCC. (hindawi.com)
  • Photosynthesis occurs mainly in chloroplasts, whose development is regulated by proteins encoded by nuclear genes. (chinaagrisci.com)
  • Among them, pentapeptide repeat (PPR) proteins participate in organelle RNA editing. (chinaagrisci.com)
  • The osppr9 mutants were obtained by CRISPR/Cas9, which showed yellowing leaves and a lethal phenotype, with suppressed expression of genes associated with chloroplast development and accumulation of photosynthetic-related proteins. (chinaagrisci.com)
  • Thus, to maintain a balance between host preservation and inflammatory pathology, the immune response and inflammation need to be tightly regulated. (frontiersin.org)
  • These genome wide transcriptional responses are very tightly regulated and complex. (biomedcentral.com)
  • The current study demonstrated that miR-205 was a tumor suppressor in PC and a regulator of RUNX2 expression. (spandidos-publications.com)
  • A luciferase assay demonstrated that transfection of lens epithelial cells with wild type TP53 3'‑UTR significantly reduced the luciferase activity of the miR‑125b overexpressing cells compared with scramble controls. (spandidos-publications.com)
  • The present study was conducted to identify suitable RGs for microRNA expression studies in a human HCC-derived cell line (HepG2 tet-on), with and without HBV replication, after transfection of HBV expression vectors. (biomedcentral.com)
  • miRNA microarray profiling was performed using Lianchuan biological small RNA sequencing analysis. (hindawi.com)
  • Instead we use an in vitro HBV-replicating liver cell model to investigate the biological role of microRNAs with a possible influence on the pathogenesis of CHB in children. (biomedcentral.com)
  • The present study explored the expression and potential role of TRIM13 in non-small-cell lung carcinoma (NSCLC). (cancerindex.org)
  • Even small changes in microRNA expression may therefore have implications for gene regulation in various physiological and pathophysiological states [ 1 , 6 ]. (biomedcentral.com)
  • The small nuclear RNA U6 is frequently used as a reference gene (RG) in such studies [ 20 ]. (biomedcentral.com)
  • MicroRNAs not only participate in determining DCs phenotype and then naive T lymphocyte differentiation, but also participate in the regulation of airway inflammation and airway remodeling in asthma. (cdc.gov)
  • As a result, ADAR-mediated editing can post-transcriptionally alter codons, introduce or remove splice sites, or affect the base pairing of the RNA molecule with itself or with other RNAs. (biomedcentral.com)
  • ADARs have been shown to contribute to disease pathologies by editing of glutamate receptors, editing of serotonin receptors, mutations in ADAR genes, and by other mechanisms, including recently identified regulatory roles in microRNA processing. (biomedcentral.com)
  • MicroRNAs participate in the regulation of asthma, the goal of this study is to summarize recent researches on the roles of microRNAs in the pathogenesis of asthma. (cdc.gov)
  • The results of the present study indicate that microRNAs play important roles in regulating asthma immune responses. (cdc.gov)
  • Numbers shown below represent number of publications held in OncomiRDB database for Oncogenic and Tumor-Suppressive MicroRNAs. (cancerindex.org)
  • miR-205 expression in humans was validated by Landgraf et al ( 8 ), however, its role in tumor progression is contradictory ( 9 - 12 ). (spandidos-publications.com)
  • MicroRNA-34a gene (MIR-34A) that is located on chromosome 1p36 belongs to one of evolutionary-conserved miRNA families (MIR-34 family) that consists of three members: MIR-34A, MIR-34B, and MIR-34C [ 10 ]. (hindawi.com)
  • It was revealed that cellular oncogenicity is positively regulated by miR-183 by inhibiting the expression of PTEN. (nature.com)
  • Using bioinformatics, a luciferase reporter assay and western blot analyses, the current study identified that runt‑related transcription factor 2 (RUNX2) was a target of miR‑205 in PC and overexpression of miR‑205 suppressed the expression of RUNX2. (spandidos-publications.com)
  • The current study demonstrated that the rs78378222 polymorphism minor allele introduces a novel potential miR‑125b binding site in the TP53 3'‑UTR with a consecutive 8‑bp perfect match, creating a ʻgain‑of‑function' variant and affecting the regulation of TP53 expression. (spandidos-publications.com)
  • This Special Issue of "Genes" seeks reviews and original papers covering a wide range of topics related to microRNA biology, such as regulation of expression in various disorders (cancer, metabolism, autoimmunity to mention but a few), genetics of microRNAs and their target sites, functional analysis of microRNA function and studies of interactions between microRNAs and target genes. (mdpi.com)
  • Zhang et al ( 9 ) revealed that expression of miR-205 was significantly decreased in radioresistant subpopulations of breast cancer cells and loss of miR-205 expression was associated with poor distant relapse-free survival in patients with breast cancer. (spandidos-publications.com)
  • Upregulated miR-21 suppresses LPS-induced inflammatory cytokine expression by targeting IL-1 receptor-associated kinase 4 (IRAK4), thereby avoiding excessive inflammatory responses. (frontiersin.org)
  • In addition, loss of OsPPR9 protein function reduces the editing efficiency of rps8 -C182, rpoC2 -C4106, rps14 -C80, and ndhB -C611 RNA editing sites, which affects chloroplast growth and development in rice. (chinaagrisci.com)
  • Reference gene stabilities were calculated first by standard deviations of ΔCt values and then by geNorm and NormFinder analyses, taking into account the amplification efficiency of each microRNA primer set. (biomedcentral.com)
  • A miRNA microarray was used to analyze the miRNA expression profiles in peripheral white blood cells (WBCs) of patients with GA. THP-1 cells were transfected with miRNA mimics, stimulated by MSU crystals, and then subjected to quantitative real-time polymerase chain reaction or Western blot analysis. (biomedcentral.com)
  • Here, we review recent studies investigating connections between ADAR-mediated RNA editing and human diseases. (biomedcentral.com)
  • RT-qPCR is the preferred method for microRNA studies, and a careful normalisation strategy, verifying the optimal set of reference genes, is decisive for correctly evaluating microRNA expression levels. (biomedcentral.com)
  • We identified miR-24-3p, miR-151a-5p, and miR-425-5p as the most valid combination of reference genes for microRNA RT-qPCR studies in our hepatitis B virus replicating HepG2 cell model. (biomedcentral.com)
  • A review of the English medical literatures was conducted by searching PubMed for studies concerning asthma and microRNAs. (cdc.gov)
  • Together, our findings provide insights into the role of the PPR protein in regulating chloroplast development in rice. (chinaagrisci.com)
  • In conclusion, the reduction in IAV copy number in DEFB1 overexpressing cells suggests that beta-defensin-1 plays a key role in regulating IAV survival through STAT3 and is a potential target for antiviral drug development. (cdc.gov)
  • The miRNA-mRNA profiles and bioinformatics study suggested that the SFRP1 gene was potentially regulated by miRNA-1/206 during porcine skeletal muscle development. (biomedcentral.com)
  • The SFRPs inhibit Wnt receptor binding to down-regulate pathway signaling during development [ 8 ]. (biomedcentral.com)
  • We selected miR-183 for study among the considerably dys-regulated microRNAs in breast cancer. (nature.com)
  • The common DE-microRNAs between the two study data were recognized. (nature.com)
  • This study evaluated the functions of OsPPR9 in chloroplast RNA editing in rice. (chinaagrisci.com)
  • Moreover, bioinformatic analyses of human brain expression profiles revealed that the expression levels of miR-1908-5p and its synaptic target genes show an inverse-correlation in many brain regions. (en-journal.org)
  • According to the present data, miR-183 may play a vital role in the progression of breast cancer by reducing PTEN expression. (nature.com)
  • MicroRNA-1/206(miRNA-1/206) is specifically expressed in skeletal muscle and play a critical role in myogenesis. (biomedcentral.com)
  • Notably, changes including elevated levels of expression of Kras and mmu-miR-155 and the repression of Socs1 were observed following genotoxic damage, reflecting induction of a cancer-prone phenotype. (biomedcentral.com)