Down-regulation of RIP3 potentiates cisplatin chemoresistance by triggering HSP90-ERK pathway mediated DNA repair in esophageal squamous cell carcinoma

Receptor interacting protein kinase 3 (RIP3) is a critical regulator of programmed necrotic cell death. Here, we observed that RIP3 was significantly down-regulated in esophageal cancer. And its remaining expression was associated with better response to chemotherapy and prolonged survival. Notably, re-expression of kinase-dead RIP3 also restored cisplatin sensitivity, suggesting that some roles of RIP3 beyond necroptosis may be involved in cisplatin-based chemosensitivity. To investigate the mechanisms, a large-scale quantitative proteomics study was performed after cisplatin treatment in RIP3-knockdown cells.

Source: Cancer Letters - January 10, 2018 Category: Cancer & Oncology Authors: Yulin Sun, Linhui Zhai, Shouzhi Ma, Chengpu Zhang, Lina Zhao, Ning Li, Yang Xu, Tao Zhang, Zhimin Guo, Heng Zhang, Ping Xu, Xiaohang Zhao Tags: Original Articles Source Type: research