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Article Publish Status: FREE
Abstract Title:

Shikonin induces colorectal carcinoma cells apoptosis and autophagy by targeting galectin-1/JNK signaling axis.

Abstract Source:

Int J Biol Sci. 2020 ;16(1):147-161. Epub 2020 Jan 1. PMID: 31892852

Abstract Author(s):

Nan Zhang, Fu Peng, Yujia Wang, Li Yang, Fengbo Wu, Xiaoyun Wang, Cui Ye, Bo Han, Gu He

Article Affiliation:

Nan Zhang

Abstract:

Colorectal carcinoma (CRC) is the third most common malignant tumor pathology worldwide. Despite progress in surgical procedures and therapy options, CRC is still a considerable cause of cancer-related mortality. In this study, we tested the antitumor effects of shikonin in CRC and tried to identify its potential mechanism. The potential target, molecular mechanism as well asandantitumor effects of shikonin in CRC cells were determined by an integrative protocol including quantitative proteomics, RT-PCR, western blotting, RNA interference and overexpression, apoptosis and autophagy assays, etc. Galectin-1 was a potential target of shikonin from the iTRAQ-based proteomic analysis in shikonin-treated SW620 cell. The overexpression and RNA silencing of galectin-1 in two CRC cells suggested that the shikonin sensitivity was correlation to galectin-1 levels. The ROS accumulation induced by shikonin was important to the formation of galectin-1 dimers. Dimer galectin-1 was found to be associated with the activation of JNK and downstream apoptosis or autophagy. Moreover, through functionalstudies, we showed that differences in galectin-1 level affected tumor cell proliferation, migration, and invasion. In summary, shikonin induced CRC cells apoptosis and autophagy by targeting galectin-1 and JNK signaling pathway bothand, which suggested a potential novel therapy target for CRC.

Study Type : In Vitro Study

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Sayer Ji
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