HERG K+ channels expression in gastric cancers and analysis of its regulation in tumor cell proliferation and apoptosis
Qing Lü
Huiyu Li
Xiaoming Lu
Guobin Wang
摘要：Objective: To investigate the expression of herg 1 gene in tumor tissues from gastric carcinomas and gastric carcinoma cell lines, and study the relationship between HERG K+ channel expressions and tumor cell proliferation and apoptosis. Methods: RT-PCR and PCR assays were used to detect the expression of herg 1 gene in 64 gastric carcinomas and the gastric cancer cell line SGC-7901. Blocking the HERG K+ channels was used to evaluate their effects on tumor cell proliferation and apoptosis. Results:The statistically significant expression of herg 1 gene was detected in all the gastric cancers and SGC-7901 cells, but not in normal tissues. The HERG K+ channel blocker, E-4031, increased the cell population in G0/G1 (P＜0.05) and the number of apoptotic tumor cells(P＜0.05). Conclusion: HERG K+ channels were expressed in all gastric carcinomas tested and these channels appear to modulate tumor cell proliferation and apoptosis.
机标关键词：
分类号：R5(内科学)
资助基金：国家自然科学基金(30772128)
论文发表日期：2009-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：6( 157-162 )
英文信息