| Literature DB >> 26747178 |
Shuhua Wu1, Feifei Wen1, Yangyang Li1, Xiangqian Gao1, Shuang He1, Mengyao Liu1, Xiangzhi Zhang1, Dong Tian2.
Abstract
Colorectal carcinoma (CRC) is the second most common and frequent cause of cancer-related deaths for men and women in the world. PIK3CA and PIK3CB that reverse multidrug resistance (MDR) can serve as predictive and prognostic markers as well as therapeutic targets for CRC treatment. In the present study, we showed that PIK3CA and PIK3CB are upregulated in CRCs and positively correlated with MDR-1, LRP, and GST-π. Long-term monitoring of 316 CRC patients showed that PIK3CA and PIK3CB were associated with poor survival time as shown by Kaplan-Meier analysis. Furthermore, we found that the downregulation of PIK3CA and PIK3CB reversed MDR; inhibited the capability of proliferation, migration, and invasion of CRC cells; and slowed down the CRC tumor growth in nude mice. Consistent with clinical observations, PIK3CA and PIK3CB significantly increase multidrug resistance of CRC cells in vivo. Together, these results suggest that PIK3CA and PIK3CB may be used as potential therapeutic drug targets for colorectal cancer.Entities:
Keywords: Colorectal cancer; Gene therapy; MDR; PIK3CA; PIK3CB; Stably transfected cell lines
Mesh：
Substances：
Year: 2016 PMID： 26747178 DOI： 10.1007/s13277-015-4691-5
Source DB: PubMed Journal: Tumour Biol ISSN： 1010-4283