Clinical Research
The tumor suppressor gene 5 in the study of differences in regulatory mechanisms and the molecular level in the process of human gastric cancer
Yinggang Hua, Yin Li, Mengting Yi, Jian Li, Liangliang Cai, Minghui Meng, Jimeng Zeng, Guoyan Liu
Published 2016-06-08
Cite as Chin J Exp Surg, 2016, 33(6): 1638-1640. DOI: 10.3760/cma.j.issn.1001-9030.2016.06.062
Abstract
ObjectiveTo explore the role of tumor suppresser gene tumor suppressor gene 5 (ST5) in the occurrence of gastric adenocarcinoma.
MethodsDNA methylation chip and bioinformatic analysis were applied to deep the different genes between diffused gastric adenocarcinoma and normal gastric tissues. The mRNA and protein expression level of ST5 gene were detected by reverse transcription-polymerase chain reaction (RT-PCR) and westen-blot in gastric adenocarcinoma tissues and gastric cancer cell lines.
ResultsThe ST5 gene showed significant high methylation in diffused gastric adenocarcinoma; the mRNA expression level of ST5 gene was lower in poorly differentiated SGC-7901 stomach cancer cell lines (fold change=0.61, P<0.01); ST5 gene was demonstrated lower protein expression level in diffused gastric adenocarcinoma tissue and cell lines like BGC-823, MGC-803 and SGC-7901.
ConclusionThe ST5 gene represented as a tumor suppressor gene, playing an important role in gastric cancerization via regulation of DNA methylation.
Key words:
Human gastric cancer; DNA methylation chip; Tumor suppressor gene 5
Contributor Information
Yinggang Hua
Department of Gastrointestinal Surgery, Zhong Shan Hospital, Xiamen University, Xiamen 361004, China
Yin Li
International Traveller Healththy Center of Xiamen, Xiamen 361012, China
Mengting Yi
Department of Gastrointestinal Surgery, Zhong Shan Hospital, Xiamen University, Xiamen 361004, China
Jian Li
School of Pharmaceutical Sciences Xiamen University, Xiamen 361005, China
Liangliang Cai
School of Pharmaceutical Sciences Xiamen University, Xiamen 361005, China
Minghui Meng
Innova Biological Medicine Company, Yangzhou 550004, China
Jimeng Zeng
School of Pharmaceutical Sciences Xiamen University, Xiamen 361005, China
Guoyan Liu
Department of Gastrointestinal Surgery, Zhong Shan Hospital, Xiamen University, Xiamen 361004, China