TRANSLATIONAL PHYSIOLOGY FXR silencing in human colon cancer by DNA methylation and KRAS signaling
نویسندگان
چکیده
Ann M. Bailey, Le Zhan, Dipen Maru, Imad Shureiqi, Curtis R. Pickering, Galina Kiriakova, Julie Izzo, Nan He, Caimiao Wei, Veerabhadran Baladandayuthapani, Han Liang, Scott Kopetz, Garth Powis, and Grace L. Guo Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, Kansas; Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Gastrointestinal (GI) Medical Oncology, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Head and Neck Surgery, University of Texas MD Anderson Cancer Center, Houston, Texas; Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, Kansas; Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas; Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, Texas; Sanford Burnham Medical Research Institute, Cancer Center, La Jolla, California; and Department of Pharmacology and Toxicology, School of Pharmacy, Rutgers University, Piscataway, New Jersey
منابع مشابه
FXR silencing in human colon cancer by DNA methylation and KRAS signaling.
Farnesoid X receptor (FXR) is a bile acid nuclear receptor described through mouse knockout studies as a tumor suppressor for the development of colon adenocarcinomas. This study investigates the regulation of FXR in the development of human colon cancer. We used immunohistochemistry of FXR in normal tissue (n = 238), polyps (n = 32), and adenocarcinomas, staged I-IV (n = 43, 39, 68, and 9), of...
متن کاملInactivation of Adenomatous Polyposis Coli Reduces Bile Acid/Farnesoid X Receptor Expression through Fxr gene CpG Methylation in Mouse Colon Tumors and Human Colon Cancer Cells.
BACKGROUND The farnesoid X receptor (FXR) regulates bile acid (BA) metabolism and possesses tumor suppressor functions. FXR expression is reduced in colorectal tumors of subjects carrying inactivated adenomatous polyposis coli (APC). Identifying the mechanisms responsible for this reduction may offer new molecular targets for colon cancer prevention. OBJECTIVE We investigated how APC inactiva...
متن کاملاپیژنتیک سرطان پستان: مقاله مروری
Stable molecular changes during cell division without any change in the sequence of DNA molecules is known as epigenetic. Molecular mechanisms involved in this process, including histone modifications, methylation of DNA, protein complex and RNA antisense. Cancer genome changes happen through a combination of DNA hypermethylation, long-term epigenetic silencing with heterozygosis loss and genom...
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The neurotensin/neuromedin N (NT/N) gene is expressed in fetal colon, repressed in newborn and adult colon, and reexpressed in approximately 25% of colon cancers. Our purpose was to determine the effect of gene methylation on NT/N silencing in colon cancers. We found that the NT/N gene was expressed in human colon cancer cell line KM12C but not in KM20 colon cancer cells. Bisulfite genomic sequ...
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