期刊
ANTIVIRAL RESEARCH
卷 58, 期 3, 页码 189-197出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0166-3542(03)00069-X
关键词
mitochondrial dysfunction; HIV; nucleoside reverse transcriptase toxicity; treatment of NRTI mitochondrial toxicity
资金
- NHLBI NIH HHS [HL63666, R01 HL59798, HL72707] Funding Source: Medline
- NIAAA NIH HHS [AA13551] Funding Source: Medline
Nucleoside reverse transcriptase inhibitors (NRTIs) in combination with other antiretrovirals (HAART) are critical in current AIDS therapy, but mitochondrial side effects have come to light with the increased use of these compounds. Clinical experience, pharmacological, cell and molecular biological evidence links altered mitochondrial (mt-) DNA replication to the toxicity of NRTIs in many tissues, and conversely, mtDNA replication defects and mtDNA depletion in specific target tissues are observed. The shared features of mtDNA depletion and energy depletion became key observations and related the clinical and in vivo experimental findings to inhibition of mtDNA replication by NRTI triphosphates in vitro. Subsequent to those findings, other observations suggested that mitochondrial energy deprivation is concomitant with or the result of mitochondrial oxidative stress in AIDS (from HIV, for example) or from NRTI therapy itself. With increased use of NRTIs, mtDNA mutations may become increasingly important pathophysiologically. One important future goal is to prevent or attenuate the side effects so that improved efficacy is achieved. (C) 2003 Elsevier Science B.V. All rights reserved.
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