Distinct roles of DNMT1-dependent and DNMT1-independent methylation patterns in the genome of mouse embryonic stem cells
نویسندگان
چکیده
منابع مشابه
Dnmt1 deficiency leads to enhanced microsatellite instability in mouse embryonic stem cells.
DNA hypomethylation is frequently seen in cancer and imparts genomic instability in mouse models and some tissue culture systems. However, the effects of genomic DNA hypomethylation on mutation rates are still elusive. We have developed a model system to analyze the effects of DNA methyltransferase 1 (Dnmt1) deficiency on DNA mismatch repair (MMR) in mouse embryonic stem (ES) cells. We generate...
متن کاملMaintenance of self-renewal ability of mouse embryonic stem cells in the absence of DNA methyltransferases Dnmt1, Dnmt3a and Dnmt3b.
DNA methyltransferases Dnmt1, Dnmt3a and Dnmt3b cooperatively regulate cytosine methylation in CpG dinucleotides in mammalian genomes, providing an epigenetic basis for gene silencing and maintenance of genome integrity. Proper CpG methylation is required for the normal growth of various somatic cell types, indicating its essential role in the basic cellular function of mammalian cells. Previou...
متن کاملDifferentiation of Mouse Embryonic Stem Cells into Hematopoietic Cells
Purpose: Differentiation of Mouse embryonicstem cells into Hematopoietic cells. Materials and Methods: In this study, we used EB formation system for Hematopoietic differentiation of mouse embryonic stem cell (Royan B1) in suspension culture. EBs cultured in medium with Hematopoietic inducer cytokines (SCF, TPO, GMCSF, IL3, Flt3 and EPO) .presence of hematopoietic differentiated cell assessed ...
متن کاملThe Effect of chick Embryonic Somites on Neural Rosette Formation in Mouse Embryonic Stem Cells
purpose: The aim of the present study is to understand if EBs can generate neural rosette upon co-culture with chick embryo somites. Materials and Methods: The mouse ES cells, line Royan Bl, were cultured in hanging drops to induce embryoid bodies (EBs) formation. Somites were isolated from the chick embryos and then embedded in alginate solution. Finally, alginate beads containing somites were...
متن کاملReduced rates of gene loss, gene silencing, and gene mutation in Dnmt1-deficient embryonic stem cells.
Tumor suppressor gene inactivation is a crucial event in oncogenesis. Gene inactivation mechanisms include events resulting in loss of heterozygosity (LOH), gene mutation, and transcriptional silencing. The contribution of each of these different pathways varies among tumor suppressor genes and by cancer type. The factors that influence the relative utilization of gene inactivation pathways are...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Genome Biology
سال: 2015
ISSN: 1474-760X
DOI: 10.1186/s13059-015-0685-2