Project description:We use stable expression of a cystathionine-beta synthase (CBS) variant library in HEK293T cells to identify CBS coding sequence variants that alter mRNA abundance
Project description:Hydrogen sulfide (H2S) is an endogenous gasotransmitter and is capable of regulating various endogenous signaling pathways, inculding inflamation and immune response. In mammals, H2S is mainly generated by two pyridoxal-5'-phosphate-dependent enzymes, termed cystathionine β-synthase (CBS) and cystathionine γ-lyase (CSE). CBS-deficient mice showed autoimmune disorders. H2S play important roles in T cell development and differentiation, especially Treg cells development and differentiation. We used microarrays to detail the global gene expression of WT and CBS-deficient CD4+ T cells.
Project description:The investigation of the association of long non-coding RNAs (lncRNAs) with DNMT1 by RIP-seq reveals that DNMT1 interacts with DACOR1. We identified the genomic occupancy sites of DACOR1 through ChIRP-seq, which we found to significantly overlap with known differentially methylated regions (DMRs) in colon tumors. Induction of DACOR1 in colon cancer cell lines significantly reduced their ability to form colonies in vitro, suggesting a growth suppressor function. Consistent with the observed phenotype, induction of DACOR1 led to the activation of tumor-suppressor pathways and attenuation of cancer-associated metabolic pathways. Notably, DACOR1 induction resulted in down-regulation of Cystathionine β-synthase (CBS), which is known to lead to increased levels of S-adenosyl methionine (SAM) – the key methyl donor for DNA methylation.
Project description:Hydrogen sulfide (H2S) is an endogenous gasotransmitter and is capable of regulating various endogenous signaling pathways, inculding inflamation and immune response. In mammals, H2S is mainly generated by two pyridoxal-5’-phosphate-dependent enzymes, termed cystathionine beta-synthase (CBS) and cystathionine gamma-lyase (CSE). CBS-deficient mice showed autoimmune disorders. H2S play important roles in T cell development and differentiation, especially Treg cells development and differentiation. We used microarrays to detail the global gene expression of WT and CBS-deficient CD4+ T cells. CD4+ T cells from WT and CBS-deficient mice were isolated for RNA extraction and hybridization on Affymetrix microarrays. We sought to obtain the homogeneous populations of mice at 6 weeks in order to increase the temporal resolution of expression profiles.
Project description:Gene expression profiling of immortalized human mesenchymal stem cells with hTERT/E6/E7 transfected MSCs. hTERT may change gene expression in MSCs. Goal was to determine the gene expressions of immortalized MSCs.
