Abnormal regulation of DNA methyltransferase expression during colorectal carcinogenesis

AM De Marzo, VL Marchi, ES Yang, R Veeraswamy… - Cancer research, 1999 - AACR
Somatic changes in CpG dinucleotide methylation occur quite commonly in human cancer
cell DNA. Relative to DNA from normal human colonic cells, DNA from human colorectal …

Association of DNA methyltransferases expression with global and gene‐specific DNA methylation in colorectal cancer cells

MM Sarabi, F Naghibalhossaini - Cell biochemistry and function, 2015 - Wiley Online Library
There are conflicting reports regarding the association between DNA methyltransferases
(DNMTs) expression and global or gene‐specific DNA methylation in colorectal cancer …

CpG island hypermethylation in human colorectal tumors is not associated with DNA methyltransferase overexpression

CA Eads, KD Danenberg, K Kawakami, LB Saltz… - Cancer research, 1999 - AACR
The molecular basis of aberrant hypermethylation of CpG islands observed in a subset of
human colorectal tumors is unknown. One potential mechanism is the up-regulation of DNA …

Alterations of DNA methylation associated with abnormalities of DNA methyltransferases in human cancers during transition from a precancerous to a malignant state

Y Kanai, S Hirohashi - Carcinogenesis, 2007 - academic.oup.com
Alterations of DNA methylation are one of the most consistent epigenetic changes in human
cancers. Human cancers generally show global DNA hypomethylation accompanied by …

Aberrant CpG island hypermethylation along multistep hepatocarcinogenesis

S Lee, HJ Lee, JH Kim, HS Lee, JJ Jang… - The American journal of …, 2003 - Elsevier
To determine the methylation profile of multiple tumor-related genes during multistep
hepatocarcinogenesis, we investigated the methylation status of CpG islands of 9 genes …

Increased DNA methyltransferase 1 (DNMT1) protein expression correlates significantly with poorer tumor differentiation and frequent DNA hypermethylation of …

T Etoh, Y Kanai, S Ushijima, T Nakagawa… - The American journal of …, 2004 - Elsevier
We evaluated the significance of aberrant DNA methyltransferase 1 (DNMT1) protein
expression during gastric carcinogenesis. The protein expression of DNMT1, Muc2, human …

DNA methylation of multiple tumor-related genes in association with overexpression of DNA methyltransferase 1 (DNMT1) during multistage carcinogenesis of the …

DF Peng, Y Kanai, M Sawada, S Ushijima… - …, 2006 - academic.oup.com
To evaluate the significance of alterations in DNA methylation during multistage
carcinogenesis of the pancreas, tissue samples of 13 peripheral pancreatic duct epithelia …

DNMT3B expression might contribute to CpG island methylator phenotype in colorectal cancer

K Nosho, K Shima, N Irahara, S Kure, Y Baba… - Clinical cancer …, 2009 - AACR
Abstract Purpose: DNA methyltransferase-3B (DNMT3B) plays an important role in de novo
CpG island methylation. Dnmt3b can induce colon tumor in mice with methylation in specific …

Comparative analysis of promoter methylation and gene expression endpoints between tumorous and non-tumorous tissues from HCV-positive patients with …

EJ Formeister, M Tsuchiya, H Fujii, S Shpyleva… - Mutation Research …, 2010 - Elsevier
Transcriptional silencing of tumor suppressor genes and other cancer-related genes
induced by promoter CpG island hypermethylation is an important epigenetic mechanism of …

Depletion of DNMT3A Suppressed Cell Proliferation and Restored PTEN in Hepatocellular Carcinoma Cell

Z Zhao, Q Wu, J Cheng, X Qiu… - BioMed Research …, 2010 - Wiley Online Library
Promoter hypermethylation mediated by DNA methyltransferases (DNMTs) is the main
reason for epigenetic inactivation of tumor suppressor genes (TSGs). Previous studies …