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3´ untranslated region 1630 C>T polymorphism of prohibitin increases risk of breast cancer

Authors Tang L, Zhao Y, Nie W, Wang Z, Guan X

Received 11 December 2012

Accepted for publication 11 January 2013

Published 9 March 2013 Volume 2013:6 Pages 177—182


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Lin Tang,1,* Yunzhao Zhao,2,* Weiwei Nie,1 Zexing Wang,1 Xiaoxiang Guan1

1Department of Medical Oncology, 2Department of General Surgery, Jinling Hospital, Nanjing University School of Medicine, Nanjing, People’s Republic of China

*These authors contributed equally to this work

Background: Prohibitin 3´ untranslated region 1630 C>T (rs6917) polymorphism creates a variant T allele that lacks the antiproliferative activity of the more common functional C allele. Previous studies indicate that women carrying the Prohibitin T allele have an increased susceptibility to breast cancer. However, the role of 1630 C>T polymorphism in mRNA expression of prohibitin and its contribution to carcinogenesis in the breast remains controversial.
Methods: Using mRNA expression data from the HapMap online database, we sought an association between prohibitin 1630 C>T polymorphism and its mRNA expression, then conducted a meta-analysis of prohibitin 1630 C>T polymorphism and risk of breast cancer.
Results: Although no significant association was found between prohibitin 1630 C>T polymorphism and mRNA expression in lymphoblastoid cell lines from the HapMap database (Ptrend = 0.543), the present meta-analysis involving 5072 cases and 4796 controls demonstrated that prohibitin 1630 C>T polymorphism was significantly correlated with breast cancer risk in allele contrast model T versus C (odds ratio [OR] 1.09, 95% confidence interval [CI] 1.01–1.18), the homozygote codominant model TT versus CC (OR 1.47, 95% CI 1.12–1.92), and the recessive model TT versus CC/CT (OR 1.45, 95% CI 1.10–1.89).
Conclusion: Our study indicates that minor allele T of prohibitin 1630 C>T polymorphism is associated with increased susceptibility to breast cancer.

Keywords: prohibitin, breast cancer, genetic, polymorphisms, risk

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