1. Accelerated aging in perinatally HIV-infected children: clinical manifestations and pathogenetic mechanisms
- Author
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Carlo Giaquinto, Elena Chiappini, Maria Raffaella Petrara, Anita De Rossi, Luisa Galli, Martina Bianconi, and Annalisa Dalzini
- Subjects
0301 basic medicine ,Premature aging ,Senescence ,Immunosenescence ,antiretroviral therapy ,Inflammation ,HIV Infections ,Review ,Pathogenesis ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,children ,Medicine ,Humans ,030212 general & internal medicine ,Epigenetics ,Child ,business.industry ,aging ,HIV ,Aging, Premature ,Cell Biology ,telomeres ,hiv children ,Telomere ,030104 developmental biology ,Immunology ,medicine.symptom ,business - Abstract
Background: Premature aging and related diseases have been documented in HIV-infected adults. Data are now emerging also regarding accelerated aging process in HIV-infected children. Methods: A narrative review was performed searching studies on PubMed published in English language in 2004-2017, using appropriate key words, including “aging”, “children”, “HIV”, “AIDS”, “immunosenescence”, “pathogenesis”, “clinical conditions”. Results: Premature immunosenescence phenotype of B and T cells in HIV-infected children is mediated through immune system activation and chronic inflammation. Ongoing inflammation processes have been documented by increased levels of pathogen-associated molecular patterns (PAMPS), increased mitochondrial damage, higher levels of pro-inflammatory cytokines, and a positive correlation between sCD14 levels and percentages of activated CD8+ cells. Other reported features of premature aging include cellular replicative senescence, linked to an accelerated telomeres shortening. Finally, acceleration of age-associated methylation pattern and other epigenetic modifications have been described in HIV-infected children. All these features may favor the clinical manifestations related to premature aging. Lipid and bone metabolism, cancers, cardiovascular, renal, and neurological systems should be carefully monitored, particularly in children with detectable viremia and/or with CD4/CD8 ratio inversion. Conclusion: Aging processes in children with HIV infection impact their quality and length of life. Further studies regarding the mechanisms involved in premature aging are needed to search for potential targets of treatment.
- Published
- 2018