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Cancer Biol Ther. 2018 Mar 4;19(3):222-229. doi: 10.1080/15384047.2017.1416936. Epub 2018 Jan 25.

PIK3R3 promotes chemotherapeutic sensitivity of colorectal cancer through PIK3R3/NF-kB/TP pathway.

Author information

1
a Cancer Research Institute, Tongji Hospital, Huazhong University of Science and Technology , Wuhan , China.

Abstract

Phosphoinositide-3-kinase regulatory subunit 3(PIK3R3) is overexpressed in different types of human cancer. We previously reported the important role of PIK3R3 in colorectal cancer (CRC). However, the prognosis effect of PIK3R3 in CRC is still remaining unclear. In this study, we explored online clinical databases to analyze the prognosis differences between higher and lower expression of PIK3R3 in CRC patients. Interestingly, we found that better disease-free survival (DFS) were occurred in patients with higher expression of PIK3R3, but there is no significant difference in overall survival (OS). For further, we showed that PIK3R3 could enhance 5-FU induced apoptosis by regulating the expression of thymmidine phosphorylase (TP). In conclusion, PIK3R3 could be considered as a predictor of 5-FU sensitivity for personalized treatment, and a therapeutic target for colorectal cancer.

KEYWORDS:

5-fluorouracil; Colon cancer; Disease free survival; Phosphoinositide-3-kinase regulatory subunit 3 (PIK3R3); overall survival

PMID:
29370570
PMCID:
PMC5790378
DOI:
10.1080/15384047.2017.1416936
[Indexed for MEDLINE]
Free PMC Article

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