نتایج جستجو برای: promoter methylation
تعداد نتایج: 127479 فیلتر نتایج به سال:
Background: VHL (von Hippel-Lindau), Runx-3 (Runt-related transcription factor 3), E-cadherin (Epithelial cadherin), P15 (INK4a, cyclin dependent kinase inhibitor), and P16 (INK4b) genes are essential in hematopoiesis. The aim of this study was to explore the correlation between gene expression and promoter methylation in CD34+ stem cells before and after differentiation to erythroid lineage. M...
Background: Aberrant methylation of cytosine-guanine dinucleotide islands leads to inactivation of tumor suppressor genes in breast cancer. Tumor suppressor genes are unmethylated in normal tissue and often become hypermethylated during tumor formation, leading to gene silencing. We investigated the association between E-cadherin (CDH1) and estrogen receptor-α (ESRα) gene promoter methylation a...
background: vhl (von hippel-lindau), runx-3 (runt-related transcription factor 3), e-cadherin (epithelial cadherin), p15 (ink4a, cyclin dependent kinase inhibitor), and p16 (ink4b) genes are essential in hematopoiesis. the aim of this study was to explore the correlation between gene expression and promoter methylation in cd34+ stem cells before and after differentiation to erythroid lineage. m...
epidermal growth factor (egf) is an important factor for healing after tissue damage in diverse experimental models. it plays an important role in liver regeneration (lr). the objective of this experiment is to investigate the methylation variation of 10 cpg sites in the egf promoter region and their relevance to egf expression during rat liver regeneration. as a follow up of our previous study...
Introduction: Among the factors that may be associated with the re-expression gamma-globin in adults is the methylation pattern of the promoter region. The study aimed to determine the association between promoter methylation pattern of the gamma-globin gene in the carriers and affected beta-thalassemia individuals and its expression levels. Methods: This study has been done as a case control-...
background: aberrant methylation of cytosine-guanine dinucleotide islands leads to inactivation of tumor suppressor genes in breast cancer. tumor suppressor genes are unmethylated in normal tissue and often become hypermethylated during tumor formation, leading to gene silencing. we investigated the association between e-cadherin ( cdh1) and estrogen receptor-α (esrα) gene promoter methylation ...
Background and Aim: Different regulation processes have an effect on osteoblastic differentiation of mesenchymal stem cells (MSCs), and among them Wnt signaling pathway is particularly desirable. In Wnt signaling pathway, Adenomatous Polyposis Coli (APC) bind to β-catenin and induce its degradation, thereby acting as a negative regulator of canonical Wnt pathway. In this study, gene expression ...
objective: mechanism of zoledronic acid on osteoblastic differentiation of mesenchymal stem cells (mscs) has not fully understood. with the knowledge of some drugs mechanism that alter methylation pattern of some genes, the present research sets out to evaluate osterix (osx) promoter methylation pattern during zoledronic acid-induced osteoblastic differentiation of mscs. materials and methods: ...
conclusions the polymorphism and promoter methylation of rassf1a may be a significant factor in hcc, and can be an indicator for poor prognosis in patients with hcc. background the functional and prognostic significance of ras association domain family 1a gene (rassf1a) on hepatocellular carcinoma (hcc) has not been well characterized. objectives this study aimed to investigate the association ...
objectives: myelodysplastic syndromes (mdss) include a diverse group of clonal bone marrow disorders characterized by ineffective hematopoiesis and pancytopenia. it was found that down regulation of apaf1 , a putative tumor suppressor gene, leads to resistance to chemotherapy and disease development in some cancers. in this study, we investigated the relation of apaf1 methylation status with it...
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