Project description:ELF4 is a transcription factor, and to identify its potential targets, the inflamed colons of wild type and Elf4 deficient mice were subjected to whole genome RNA sequencing.
Project description:We infected wild type and Elf4 deficient mice with Plasmodium yoelii 17XNL, a non-lethal species, to investigate and compare anti-Plasmodium response of two groups of mice.
Project description:We infected wild type and Elf4 deficient mice with Plasmodium yoelii 17XNL, a non-lethal species, to investigate and compare anti-Plasmodium response of two groups of mice.
Project description:Ulcerative Colitis is an autoimmune inflammatory bowel disease that causes chronic inflammation in the colon and the rectum. Althoung extensively researched, the underlying molecular mechanisms of Ulcerative Colitis remain elusive. Especially, there is a lack of understanding about regulatory non-coding miRNA expression during Ulcerative Colitis. Therefore, we performed high-throughput miRNA profiling of colon tissue biopsies from XX patients with active Ulcerative Colitis, XX patients with quiescent Ulcerative Colitis and XX Symptomatic Control individuals.
Project description:To elucidate how ELF4 confers anti-growth activity, gene expression profiles were compared between wildtype- and mutant-expressing T3M-1 Cl-10 cells with the use of DNA microarrays. T3M-1 Cl-10 cells were infected with a mock retrovirus or virus generated from pMXS-ires-EGFP expressing ELF4 or ELF4(L211M), and EGFP?positive fractions were purified with a cell sorter. Thus gene expression profiling of purely mock/ELF4/ELF4(L211M)-expressing cells was performed with SurePrint G3 Human Gene Expression 8×60K v2 Microarray.
Project description:ELF4 (also known as MEF) is a member of the ETS family of transcriptional factors. While an oncogenic role has been demonstrated for ELF4 mainly in hematopoietic malignancies, its definitive function in human carcinogenesis is not clear yet. Here we demonstrate that a wide array of human tumors carry somatic, loss-of-function mutations in ELF4 for its transcriptional activity, and restoring its function exerts anti-proliferative effects. To further explore the tumor suppressive function of ELF4, its binding sites were searched among the human genome with the use of chromatin immunoprecipitation coupled with sequencing (ChIP-seq). Examination of binding site for FLAG-immunoprecipitated mock, ELF4 (WT) and ELF4 (L211M) with each input sample as a control.
Project description:Inflammation dramatically alters the gut microenvironment. To investigate the composition and transcriptome changes of various intestinal cell populations during the initial phase of inflammation, and the underlying cellular interactions, we delineated a single-cell atlas of the mouse colon treated with DSS on the day 2 of colitis.
Project description:Hepatocyte nuclear factor 4alpha (HNF4α) is a nuclear receptor with an emerging role in the gut. While HNF4α has been implicated in colitis and colon cancer in humans, deciphering its functional role is complicated by the existence of two promoters (P1 and P2) in theHNF4A gene that drive the expression of multiple isoforms in the adult intestine. In this study we investigate the roles of P1- and P2-driven HNF4α under conditions of homeostasis, colitis and colitis-associated colon cancer (CAC). P1- and P2-HNF4α are differentially expressed in the differentiated and proliferative compartments of the normal colonic crypt, respectively. Expression profiling of untreated exon swap mice suggests distinct functions of the isoforms that were corroborated in migration and ion transport assays.
Project description:Through laser capture microdissection and microarray analysis combined with slightly modified RNA extraction and amplification. we could analyze the subtle differential expression between colon normal cell and ulcerative colitis. Experiment Overall Design: GSM87318 is control sample and GSM87319 is Ulcerative Colitis sample.