Cited by 232Nuclear Structure and FunctionTelomeres, Telomerase, and SenescenceHIV-related health complications and treatments

Human lipodystrophies linked to mutations in A-type lamins and to HIV protease inhibitor therapy are both associated with prelamin A accumulation, oxidative stress and premature cellular senescence

Caron, M, Auclair, M, Donadille, B, Béréziat, V, Guerci, B, Laville, M, Narbonne, H, Bodemer, C +3 more·2007·Cell Death & Differentiation

Abstract

Lipodystrophic syndromes associated with mutations in LMNA, encoding A-type lamins, and with HIV antiretroviral treatments share several clinical characteristics. Nuclear alterations and prelamin A accumulation have been reported in fibroblasts from patients with LMNA mutations and adipocytes exposed to protease inhibitors (PI). As genetically altered lamin A maturation also results in premature ageing syndromes with lipodystrophy, we studied prelamin A expression and senescence markers in cultured human fibroblasts bearing six different LMNA mutations or treated with PIs. As compared to control cells, fibroblasts with LMNA mutations or treated with PIs had nuclear shape abnormalities and reduced proliferative activity that worsened with increasing cellular passages. They exhibited prelamin A accumulation, increased oxidative stress, decreased expression of mitochondrial respiratory chain proteins and premature cellular senescence. Inhibition of prelamin A farnesylation prevented cellular senescence and oxidative stress. Adipose tissue samples from patients with LMNA mutations or treated with PIs also showed retention of prelamin A, overexpression of the cell cycle checkpoint inhibitor p16 and altered mitochondrial markers. Thus, both LMNA mutations and PI treatment result in accumulation of farnesylated prelamin A and oxidative stress that trigger premature cellular senescence. These alterations could participate in the pathophysiology of lipodystrophic syndromes and lead to premature ageing complications.

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Crossref · 10.1038/sj.cdd.4402197

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  • Protease inhibitors and NRTIs can induce p16 and p21 expression in human adipose tissue.

    “To our knowledge, no evidence yet exists on whether antiretroviral compounds can induce senescence in adipocytes in vitro, but it has been demonstrated that protease inhibitors and NRTIs can induce p16 and p21 expression in human adipose tissue (Caron et al, 2007, 2008).”

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Authors
Caron, M., Auclair, M., Donadille, B., Béréziat, V, Guerci, B., Laville, M., Narbonne, H., Bodemer, C., Lascols, O., Capeau, J., & Vigouroux, C.
Affiliations
  • Inserm (FR)
  • Centre Hospitalier Régional et Universitaire de Nancy (FR)
  • Hospices Civils de Lyon (FR)
  • Assistance Publique Hôpitaux de Marseille (FR)
  • Hôpital Necker-Enfants Malades (FR)
Corresponding author
Caron, M
Venue
Cell Death & Differentiation
Published
2007-07-06
Volume
14
Issue
10
Pages
1759-1767
ISSN
  • 1350-9047 (ISSN-L)
  • 1476-5403
OpenAlex
W1979927283
Cited by
226
References
45
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 8 · 2022: 12 · 2021: 33 · 2020: 8 · 2019: 7 · 2018: 7 · 2017: 9 · 2016: 15 · 2015: 9 · 2014: 12 · 2013: 17 · 2012: 10
FWCI
6.22
Type
journal article
Language
en
Open access
closed
Locations
  • Cell Death and Differentiation (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Styrelsen för Internationellt Utvecklingssamarbete
  • Sidaction
  • European Commission
  • Institut National de la Santé et de la Recherche Médicale
  • Servier
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Nuclear Structure and Function
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Emergency Medicine › HIV-related health complications and treatments
Keywords
lipodystrophy, LMNA mutations, A-type lamins, HIV protease inhibitors, oxidative stress, premature aging, farnesylation, p16, mitochondrial respiratory chain, nuclear abnormalities, fibroblasts, adipose tissue
MeSH terms
Adult, Biopsy, Cells, Cultured, Child, Female, Fibroblasts, Humans, Middle Aged, Mitochondria, Mutation, Nuclear Proteins, Protein Precursors, Cellular Senescence, HIV Protease Inhibitors, Reactive Oxygen Species, Oxidative Stress, Indinavir, Nelfinavir, Cyclin-Dependent Kinase Inhibitor p16, Lamin Type A, Cyclin-Dependent Kinase Inhibitor p21, Lipodystrophy, Familial Partial, Cell Nucleus Shape

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