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Inhibition of EZH2 expression is associated with the proliferation, apoptosis, and migration of SW620 colorectal cancer cells in vitro.
- Source :
-
Experimental biology and medicine (Maywood, N.J.) [Exp Biol Med (Maywood)] 2015 Apr; Vol. 240 (4), pp. 458-66. Date of Electronic Publication: 2014 Jul 08. - Publication Year :
- 2015
-
Abstract
- Epigenetic changes have been recently recognized as important in many human cancers. Enhancer of zeste homologue 2 (EZH2)gene has shown overexpression in various human cancers, consistent with a straightforward role of EZH2 as an oncogene, but its function in carcinogenesis is partly contradictory. The role of EZH2 in development of human colorectal cancer (CRC) has not yet been clarified. In present study, we observed up-regulation of EZH2 expression in tumor tissues from CRC patients [corrected]. The expression of EZH2 in CRC cell lines is consistent with the trend in cancer tissues using RT-PCR. We showed that TNM stage and lymph node metastasis in CRC patients are significantly correlated with EZH2 expression levels [corrected]. EZH2 level of transcription and protein was inhibited by small interfering RNA (siRNA). More importantly, EZH2-siRNA inhibited the proliferation and migration of SW620 cells while promoting their apoptosis, and inducing G0/G1 cell cycle arrest of CRC cells. Collectively, our results suggest that upregulated EZH2 expression may contribute to the progression of the patients with CRC. A comprehensive study of epigenetic mechanisms and the relevance of EZH2 in CRC is important for fully understanding this disease and as a basis for developing new treatment options in patients with CRC [corrected].<br /> (© 2014 by the Society for Experimental Biology and Medicine.)
- Subjects :
- Adenocarcinoma diagnosis
Adenocarcinoma metabolism
Apoptosis drug effects
Biomarkers, Tumor metabolism
Cell Cycle drug effects
Cell Cycle physiology
Cell Line, Tumor
Cell Movement drug effects
Cell Proliferation drug effects
Colorectal Neoplasms diagnosis
Colorectal Neoplasms metabolism
Enhancer of Zeste Homolog 2 Protein
Female
Humans
In Vitro Techniques
Male
Middle Aged
Polycomb Repressive Complex 2 drug effects
Polycomb Repressive Complex 2 metabolism
Prognosis
RNA, Small Interfering pharmacology
Up-Regulation physiology
Adenocarcinoma pathology
Apoptosis physiology
Cell Movement physiology
Cell Proliferation physiology
Colorectal Neoplasms pathology
Polycomb Repressive Complex 2 antagonists & inhibitors
Subjects
Details
- Language :
- English
- ISSN :
- 1535-3699
- Volume :
- 240
- Issue :
- 4
- Database :
- MEDLINE
- Journal :
- Experimental biology and medicine (Maywood, N.J.)
- Publication Type :
- Academic Journal
- Accession number :
- 25005166
- Full Text :
- https://doi.org/10.1177/1535370214542215