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Kallianpur AR, Gerschenson M, Hulgan T, Kaur H, Clifford DB, Haas DW, Murdock DG, McArthur JC, Samuels DC, Simpson DM. Hemochromatosis (HFE) Gene Variants Are Associated with Increased Mitochondrial DNA Levels During HIV-1 Infection and Antiretroviral Therapy. AIDS Res Hum Retroviruses 2018; 34:942-949. [PMID: 29968489 DOI: 10.1089/aid.2018.0025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Some HIV-associated complications involve mitochondrial dysfunction and may be less common in individuals with iron-loading HFE (hemochromatosis gene) variants. We evaluated HFE 845A and 187G alleles in relation to mitochondrial DNA (mtDNA) levels in peripheral blood mononuclear cells from 85 individuals with HIV infection on uninterrupted antiretroviral therapy (ART) for 15 or more consecutive weeks. Carriers of HFE gene variants (N = 24) had significantly higher mtDNA levels than noncarriers (N = 61), after adjusting for age, race, sex, and type of ART [adjusted β-coefficient 297, p-value < .001 for at least one HFE variant], but mtDNA declined among all individuals on study during 48 weeks on ART. Increased cellular mtDNA content may represent a compensatory response to mitochondrial stress that is influenced by iron-loading HFE variants.
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Affiliation(s)
- Asha R. Kallianpur
- Department of Genomic Medicine, Cleveland Clinic Foundation/Lerner Research Institute, Cleveland, Ohio
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine of Case Western Reserve University, Cleveland, Ohio
| | - Mariana Gerschenson
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii, Honolulu, Hawaii
| | - Todd Hulgan
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Harpreet Kaur
- Department of Genomic Medicine, Cleveland Clinic Foundation/Lerner Research Institute, Cleveland, Ohio
| | - David B. Clifford
- Department of Neurology, Washington University in Saint Louis, St. Louis, Missouri
| | - David W. Haas
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Deborah G. Murdock
- Children's Hospital of Philadelphia Research Institute & Center for Mitochondrial and Epigenomic Medicine, Philadelphia, Pennsylvania
| | - Justin C. McArthur
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - David C. Samuels
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee
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