Abstract:
:High lactate production in cells during growth under oxygen-rich conditions (aerobic glycolysis) is a hallmark of tumor cells, indicating the role of mitochondrial function in tumorigenesis. In fact, enhanced mitochondrial biogenesis and impaired quality control are frequently observed in cancer cells. Mitochondrial DNA (mtDNA) encodes 13 subunits of oxidative phosphorylation (OXPHOS), is present in thousands of copies per cell, and has a very high mutation rate. Mutations in mtDNA and nuclear DNA (nDNA) genes encoding proteins that are important players in mitochondrial biogenesis and function are involved in oncogenic processes. A wide range of germline mtDNA polymorphisms, as well as tumor mtDNA somatic mutations have been identified in diverse cancer types. Approximately 72% of supposed tumor-specific somatic mtDNA mutations reported, have also been found as polymorphisms in the general population. The ATPase 6 and NADH dehydrogenase subunit genes of mtDNA are the most commonly mutated genes in breast cancer (BC). Furthermore, nuclear genes playing a role in mitochondrial biogenesis and function, such as peroxisome proliferators-activated receptor gamma coactivator-1 (PGC-1), fumarate hydratase (FH) and succinate dehydrogenase (SDH) are frequently mutated in cancer. In this review, we provide an overview of the mitochondrial germline variants and mutations in cancer, with particular focus on those found in BC.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Jiménez-Morales S,Pérez-Amado CJ,Langley E,Hidalgo-Miranda Adoi
10.3892/ijo.2018.4468subject
Has Abstractpub_date
2018-09-01 00:00:00pages
923-936issue
3eissn
1019-6439issn
1791-2423journal_volume
53pub_type
杂志文章,评审abstract::The aim of the present study was to evaluate the performance of whole-body diffusion-weighted imaging (WB-DWI), whole-body positron emission tomography with computed tomography (WB-PET/CT), and whole-body positron emission tomography with magnetic resonance imaging (WB-PET/MRI) in staging patients with untreated invas...
journal_title:International journal of oncology
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journal_title:International journal of oncology
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journal_title:International journal of oncology
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abstract::We investigated three clonally related human keratinocyte cell lines of different biological behaviour, HaCaT (non-tumorigenic), A5 (benign, tumorigenic) and II-4RT (malignant, tumorigenic), with regard to the cell-associated localization of the major MMPs -1, -2, -3, -9, -10 and -11. These observations were correlate...
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journal_title:International journal of oncology
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