An inherited heteroplasmic mutation in mitochondrial gene COI in a patient with prostate cancer alters reactive oxygen, reactive nitrogen and proliferation.

An inherited heteroplasmic mutation in mitochondrial gene COI in a patient with prostate cancer alters reactive oxygen, reactive nitrogen and proliferation.
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DOI:
10.1155/2013/239257
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发表时间:
2013
影响因子:
--
通讯作者:
Petros JA
Petros JA
中科院分区:
生物学3区
文献类型:
--
作者:
Arnold RS;Sun Q;Sun CQ;Richards JC;O'Hearn S;Osunkoya AO;Wallace DC;Petros JA

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线粒体DNA(mtDNA)突变已在许多癌症中发现,但由此类突变引起的生理紊乱仍然难以捉摸。前列腺癌与细胞色素c氧化酶(COI)基因的遗传和体细胞突变有关。我们提出了一个前列腺癌患者来源的罕见异质性突变的基因,线粒体呼吸复合物IV的一部分。功能研究表明,这种突变导致细胞色素氧化的同时减少,活性氧增加,活性氮增加。这些数据表明,导致活性氧和活性氮产生增加的线粒体DNA突变可能与前列腺癌生物学有关。
Mitochondrial DNA (mtDNA) mutations have been found in many cancers but the physiological derangements caused by such mutations have remained elusive. Prostate cancer is associated with both inherited and somatic mutations in the cytochrome c oxidase (COI) gene. We present a prostate cancer patient-derived rare heteroplasmic mutation of this gene, part of mitochondrial respiratory complex IV. Functional studies indicate that this mutation leads to the simultaneous decrease in cytochrome oxidation, increase in reactive oxygen, and increased reactive nitrogen. These data suggest that mitochondrial DNA mutations resulting in increased reactive oxygen and reactive nitrogen generation may be involved in prostate cancer biology.
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