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Peroxiredoxin 5 is involved in cancer cell invasion and tumor growth of oral squamous cell carcinoma

Authors
 Min Kyeong Lee  ;  Xianglan Zhang  ;  Hyung Jun Kim  ;  Young Sun Hwang 
Citation
 ORAL DISEASES, : ePub, 2021-05 
Journal Title
ORAL DISEASES
ISSN
 1354-523X 
Issue Date
2021-05
Keywords
cancer invasion ; cell cycle ; oxidative stress ; peroxiredoxin 5 ; tumor growth
Abstract
Objectives: Peroxiredoxins (Prxs) are antioxidant enzymes that can coordinate cell signal transduction via reactive species scavenging or by acting as redox sensors. The mechanism by which Prxs promote cancer invasion and progression is not yet fully understood. This study aims to elucidate the precise mechanism through which Prx type 5 (Prx5) promotes cancer invasion and tumor growth.

Materials and methods: We analyzed the Prx5 expression in oral squamous cell carcinoma (OSCC) by using microarray analysis for gene expression profiling. To identify Prx5 function in cancer, lentiviral short hairpin RNA was used for Prx5 depletion, and invasion assay and mouse xenograft were performed.

Results: In microarray data obtained from OSCC patients, Prx5 showed higher expression at the tumor margin (TM) compared to the tumor center (TC) of the collective invasion. The depletion of Prx5 in OSCC cells (Prx5dep ) led to decreased invasion activity. In orthotopic xenograft models, Prx5dep cells harbored delimited tumorigenicity compared to wild-type cells as well as the suppression of lymph node metastasis. Prx5dep cells showed growth retardation and increased cellular reactive oxygen species (ROS) levels. The growth retardation of Prx5dep cells resulted in G1 phase arrest.

Conclusions: This study provides evidence that Prx5 removes excess ROS, especially in the TM, contributing to cancer invasion and tumor progression.
Full Text
https://onlinelibrary.wiley.com/doi/10.1111/odi.13910
DOI
10.1111/odi.13910
Appears in Collections:
2. College of Dentistry (치과대학) > Research Institute (부설연구소) > 1. Journal Papers
2. College of Dentistry (치과대학) > Dept. of Oral and Maxillofacial Surgery (구강악안면외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Hyung Jun(김형준) ORCID logo https://orcid.org/0000-0001-8247-4004
Zhang, Xiang Lan(장향란)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/190425
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