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Detection of mitochondrial DNA mutations by high-throughput sequencing in the blood of breast cancer patients

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Mitochondrial DNA mutations have been identified in serveral types of cancer. In breast cancer, germline and somatic mitochondrial DNA (mtDNA) mutations have been identified. A number of mtDNA mutations in breast cancer have been identified in protein-coding regions (in protein-coding genes, such as ND2, COX3, ND4, ND5 and CytB). Mutations in these structure proteins cause impaired electron transport function and lead to electron leakage and increased reactive oxygen species (ROS) production, which in turn increases oxidative stress and oxidative damage to the mitochondria, as well as to cells. These data establish an association between mtDNA mutations and breast cancer; however, there is no reliable prediction of breast cancer predisposition or progression based on mtDNA mutation patterns thus far. In this study, we used high-throughput sequencing to detect mtDNA mutations in the blood of breast cancer patients. Some of these mutations may be used as potential markers for breast cancer diagnosis.
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Document Type: Research Article

Affiliations: 1: Graduate School of Southern Medical University, Guangzhou, Guangdong 510515, P.R. China 2: International Center for Metabolic Diseases, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China 3: Department of Laboratory Medicine, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou, Guangdong 510010, P.R. China

Publication date: January 1, 2014

More about this publication?
  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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