Peroxiredoxin 2 knockdown by RNA interference inhibits the growth of colorectal cancer cells by downregulating Wnt/β-catenin signaling.

Abstract:

: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/β-catenin signaling.

journal_name

Cancer Lett

journal_title

Cancer letters

authors

Lu W,Fu Z,Wang H,Feng J,Wei J,Guo J

doi

10.1016/j.canlet.2013.10.002

subject

Has Abstract

pub_date

2014-02-28 00:00:00

pages

190-9

issue

2

eissn

0304-3835

issn

1872-7980

pii

S0304-3835(13)00713-1

journal_volume

343

pub_type

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