期刊
WORLD JOURNAL OF GASTROENTEROLOGY
卷 20, 期 29, 页码 9744-9758出版社
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v20.i29.9744
关键词
p38 mitogen-activated protein kinase; Chemoresistance; Molecularly-targeted drugs; Colorectal cancer; Cell death
资金
- Italian Association for Cancer Research (AIRC) fellowship
- Italian Foundation for Cancer Research (FIRC) fellowships
- Italian Association for Cancer Research (AIRC) [IG10177]
- FIRB Futuro in Ricerca from the Italian MIUR [RBFR12VP3Q_003]
Colorectal cancer (CRC) remains one of the most common malignancies in the world. Although surgical resection combined with adjuvant therapy is effective at the early stages of the disease, resistance to conventional therapies is frequently observed in advanced stages, where treatments become ineffective. Resistance to cisplatin, irinotecan and 5-fluorouracil chemotherapy has been shown to involve mitogen-activated protein kinase (MAPK) signaling and recent studies identified p38 alpha MAPK as a mediator of resistance to various agents in CRC patients. Studies published in the last decade showed a dual role for the p38 alpha pathway in mammals. Its role as a negative regulator of proliferation has been reported in both normal (including cardiomyocytes, hepatocytes, fibroblasts, hematopoietic and lung cells) and cancer cells (colon, prostate, breast, lung tumor cells). This function is mediated by the negative regulation of cell cycle progression and the transduction of some apoptotic stimuli. However, despite its anti-proliferative and tumor suppressor activity in some tissues, the p38 alpha pathway may also acquire an oncogenic role involving cancer related-processes such as cell metabolism, invasion, inflammation and angiogenesis. In this review, we summarize current knowledge about the predominant role of the p38 alpha MAPK pathway in CRC development and chemoresistance. In our view, this might help establish the therapeutic potential of the targeted manipulation of this pathway in clinical settings. (C) 2014 Baishideng Publishing Group Inc. All rights reserved.
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