期刊
CANCER LETTERS
卷 343, 期 2, 页码 190-199出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.canlet.2013.10.002
关键词
Prdx2; Wnt/beta-catenin; Colorectal cancer; RNA interference; Apoptosis
类别
资金
- National Natural Science Foundation of China [81172295]
Peroxiredoxin 2 (Prdx2) has been shown to act as an antioxidant whose main function is to reduce hydrogen peroxide (H2O2) in cells, and Prdx2 is abnormally elevated in colorectal cancer (CRC). However, the functional significance of this up-regulation and the detailed molecular mechanism behind the regulatory effect of Prdx2 on the growth of CRC cells have not been elucidated. In this study, we demonstrated that Prdx2 knockdown using a lentiviral vector-mediated specific shRNA inhibited cell growth, stimulated apoptosis, and augmented the production of endogenous reactive oxygen species (ROS). Further, silencing of Prdx2 resulted in an altered expression of proteins associated with the Wnt signaling pathway. Finally, Prdx2 knockdown contributed to attenuated CRC growth in BALB/c nude mice. In conclusion, these findings demonstrate that the regulatory effects of Prdx2 can be partially attributed to Wnt/beta-catenin signaling. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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