Link between Cancer and Alzheimer Disease via Oxidative Stress Induced by Nitric Oxide-Dependent Mitochondrial DNA Overproliferation and Deletion
AuthorAliev, G; Obrenovich, ME; Tabrez, S; Jabir, NR; Reddy, VP; Li, Y; Burnstock, G; Cacabelos, R; Kamal, MA
Source TitleOxidative Medicine and Cellular Longevity
University of Melbourne Author/sBurnstock, Geoffrey
AffiliationPharmacology and Therapeutics
Document TypeJournal Article
CitationsAliev, G., Obrenovich, M. E., Tabrez, S., Jabir, N. R., Reddy, V. P., Li, Y., Burnstock, G., Cacabelos, R. & Kamal, M. A. (2013). Link between Cancer and Alzheimer Disease via Oxidative Stress Induced by Nitric Oxide-Dependent Mitochondrial DNA Overproliferation and Deletion. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY, 2013, https://doi.org/10.1155/2013/962984.
Access StatusOpen Access
Nitric oxide- (NO-) dependent oxidative stress results in mitochondrial ultrastructural alterations and DNA damage in cases of Alzheimer disease (AD). However, little is known about these pathways in human cancers, especially during the development as well as the progression of primary brain tumors and metastatic colorectal cancer. One of the key features of tumors is the deficiency in tissue energy that accompanies mitochondrial lesions and formation of the hypoxic smaller sized mitochondria with ultrastructural abnormalities. We speculate that mitochondrial involvement may play a significant role in the etiopathogenesis of cancer. Recent studies also demonstrate a potential link between AD and cancer, and anticancer drugs are being explored for the inhibition of AD-like pathology in transgenic mice. Severity of the cancer growth, metastasis, and brain pathology in AD (in animal models that mimic human AD) correlate with the degree of mitochondrial ultrastructural abnormalities. Recent advances in the cell-cycle reentry of the terminally differentiated neuronal cells indicate that NO-dependent mitochondrial abnormal activities and mitotic cell division are not the only important pathogenic factors in pathogenesis of cancer and AD, but open a new window for the development of novel treatment strategies for these devastating diseases.
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