Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer

Purpose. Mitochondrial DNA (mtDNA) mutations have been described in every adult neoplasm including prostate cancer. There are marked racial differences in mutations within the cytochrome c oxidase subunit 1 (COI) gene in individuals with prostate cancer (PCa). The purpose of this study was to ident...

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Main Authors: Takara A. Scott, Rebecca S. Arnold, John A. Petros
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Scientifica
Online Access:http://dx.doi.org/10.6064/2012/701810
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author Takara A. Scott
Rebecca S. Arnold
John A. Petros
author_facet Takara A. Scott
Rebecca S. Arnold
John A. Petros
author_sort Takara A. Scott
collection DOAJ
description Purpose. Mitochondrial DNA (mtDNA) mutations have been described in every adult neoplasm including prostate cancer. There are marked racial differences in mutations within the cytochrome c oxidase subunit 1 (COI) gene in individuals with prostate cancer (PCa). The purpose of this study was to identify the variation in COI gene sequence in African and Caucasian Americans with prostate cancer. Methods. We sequenced the COI gene from peripheral blood in 482 prostate cancer patients and 189 controls. All bases that differed from the revised Cambridge Reference Sequence (rCRS) were classified as either silent or missense and the compiled alterations were then compared between races and published reports. Results and Conclusions. We found inherited mtDNA COI missense variants in 8.8% of Caucasian prostate cancer patients (vs. 0.0% controls) and 72.8% of African-American prostate cancer patients (vs. 64.3% controls) A total of 144 COI variants were identified, of which 30 were missense mutations. Of 482 PCa patients, 116 (24.1%) had one or more missense mutations. Further evaluation of this gene and these mutations may allow for the identification of genetically at-risk populations. The high rate of COI mutations in African-Americans may account for some of the racial disparity observed in prostate cancer.
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spelling doaj-art-42206c7bc4be4fde938cd9ecf38316bf2025-02-03T00:59:22ZengWileyScientifica2090-908X2012-01-01201210.6064/2012/701810701810Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate CancerTakara A. Scott0Rebecca S. Arnold1John A. Petros2Department of Urology, Emory University, Atlanta, GA 30322, USADepartment of Urology, Emory University, Atlanta, GA 30322, USADepartment of Urology, Emory University, Atlanta, GA 30322, USAPurpose. Mitochondrial DNA (mtDNA) mutations have been described in every adult neoplasm including prostate cancer. There are marked racial differences in mutations within the cytochrome c oxidase subunit 1 (COI) gene in individuals with prostate cancer (PCa). The purpose of this study was to identify the variation in COI gene sequence in African and Caucasian Americans with prostate cancer. Methods. We sequenced the COI gene from peripheral blood in 482 prostate cancer patients and 189 controls. All bases that differed from the revised Cambridge Reference Sequence (rCRS) were classified as either silent or missense and the compiled alterations were then compared between races and published reports. Results and Conclusions. We found inherited mtDNA COI missense variants in 8.8% of Caucasian prostate cancer patients (vs. 0.0% controls) and 72.8% of African-American prostate cancer patients (vs. 64.3% controls) A total of 144 COI variants were identified, of which 30 were missense mutations. Of 482 PCa patients, 116 (24.1%) had one or more missense mutations. Further evaluation of this gene and these mutations may allow for the identification of genetically at-risk populations. The high rate of COI mutations in African-Americans may account for some of the racial disparity observed in prostate cancer.http://dx.doi.org/10.6064/2012/701810
spellingShingle Takara A. Scott
Rebecca S. Arnold
John A. Petros
Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer
Scientifica
title Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer
title_full Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer
title_fullStr Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer
title_full_unstemmed Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer
title_short Mitochondrial Cytochrome c Oxidase Subunit 1 Sequence Variation in Prostate Cancer
title_sort mitochondrial cytochrome c oxidase subunit 1 sequence variation in prostate cancer
url http://dx.doi.org/10.6064/2012/701810
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