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CLC number: R737.31

On-line Access: 2011-05-06

Received: 2010-05-30

Revision Accepted: 2010-09-29

Crosschecked: 2011-03-30

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Journal of Zhejiang University SCIENCE B 2011 Vol.12 No.5 P.346-356

http://doi.org/10.1631/jzus.B1000192


Up-regulation of mitochondrial antioxidation signals in ovarian cancer cells with aggressive biologic behavior


Author(s):  Yue Wang, Li Dong, Heng Cui, Dan-hua Shen, Ying Wang, Xiao-hong Chang, Tian-yun Fu, Xue Ye, Yuan-yang Yao

Affiliation(s):  Department of Obstetrics and Gynecology, People’s Hospital, Peking University, Beijing 100044, China, Department of Obstetrics and Gynecology, Beijing Jishuitan Hospital, Peking University, Beijing 100035, China, Department of Pathology, People’s Hospital, Peking University, Beijing 100044, China

Corresponding email(s):   wangyue99992002@yahoo.com

Key Words:  Ovarian carcinoma, Mitochondria, Invasion, Proteomic, Superoxide dismutase 2 (SOD2)


Yue Wang, Li Dong, Heng Cui, Dan-hua Shen, Ying Wang, Xiao-hong Chang, Tian-yun Fu, Xue Ye, Yuan-yang Yao. Up-regulation of mitochondrial antioxidation signals in ovarian cancer cells with aggressive biologic behavior[J]. Journal of Zhejiang University Science B, 2011, 12(5): 346-356.

@article{title="Up-regulation of mitochondrial antioxidation signals in ovarian cancer cells with aggressive biologic behavior",
author="Yue Wang, Li Dong, Heng Cui, Dan-hua Shen, Ying Wang, Xiao-hong Chang, Tian-yun Fu, Xue Ye, Yuan-yang Yao",
journal="Journal of Zhejiang University Science B",
volume="12",
number="5",
pages="346-356",
year="2011",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.B1000192"
}

%0 Journal Article
%T Up-regulation of mitochondrial antioxidation signals in ovarian cancer cells with aggressive biologic behavior
%A Yue Wang
%A Li Dong
%A Heng Cui
%A Dan-hua Shen
%A Ying Wang
%A Xiao-hong Chang
%A Tian-yun Fu
%A Xue Ye
%A Yuan-yang Yao
%J Journal of Zhejiang University SCIENCE B
%V 12
%N 5
%P 346-356
%@ 1673-1581
%D 2011
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B1000192

TY - JOUR
T1 - Up-regulation of mitochondrial antioxidation signals in ovarian cancer cells with aggressive biologic behavior
A1 - Yue Wang
A1 - Li Dong
A1 - Heng Cui
A1 - Dan-hua Shen
A1 - Ying Wang
A1 - Xiao-hong Chang
A1 - Tian-yun Fu
A1 - Xue Ye
A1 - Yuan-yang Yao
J0 - Journal of Zhejiang University Science B
VL - 12
IS - 5
SP - 346
EP - 356
%@ 1673-1581
Y1 - 2011
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.B1000192


Abstract: 
Objective: Recently, a high frequency of mutations in mitochondrial DNA (mtDNA) has been detected in ovarian cancer. To explore the alterations of proteins in mitochondria in ovarian cancer, a pair of human ovarian carcinoma cell lines (SKOV3/SKOV3.ip1) with different metastatic potentials was examined. Methods: Cancer cells SKOV3.ip1 were derived from the ascitic tumor cells of nude mice bearing a tumor of ovarian cancer cells SKOV3. SKOV3.ip1 exhibited a higher degree of migration potential than its paired cell line SKOV3. The proteins in the mitochondria of these two cells were isolated and separated by 2-D gel electrophoresis. The differently expressed proteins were extracted and identified using matrix assisted laser desorption ionisation/time-of-flight/time-of-flight (MALDI-TOF/TOF), and finally a selected protein candidate was further investigated by immunohistochemistry (IHC) method in nude mice bearing tumor tissues of these two cells. Results: A total of 35 spots with different expressions were identified between the two cells using 2D-polyacrylamide gel electrophoresis (PAGE) approach. Among them, 17 spots were detected only in either SKOV3 or SKOV3.ip1 cells. Eighteen spots expressed different levels, with as much as a three-fold difference between the two cells. Twenty spots were analyzed using MALDI-TOF/TOF, and 11 of them were identified successfully; four were known to be located in mitochondria, including superoxide dismutase 2 (SOD2), fumarate hydratase (FH), mitochondrial ribosomal protein L38 (MRPL38), and mRNA turnover 4 homolog (MRTO4). An increased staining of SOD2 was observed in SKOV3.ip1 over that of SKOV3 in IHC analysis. Conclusions: Our results indicate that the enhanced antioxidation and metabolic potentials of ovarian cancer cells might contribute to their aggressive and metastatic behaviors. The underlying mechanism warrants further study.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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