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Frias MA, Pagano S, Bararpour N, Sidibé J, Kamau F, Fétaud-Lapierre V, Hudson P, Thomas A, Lecour S, Strijdom H, Vuilleumier N. People living with HIV display increased anti-apolipoprotein A1 auto-antibodies, inflammation, and kynurenine metabolites: a case-control study. Front Cardiovasc Med 2024; 11:1343361. [PMID: 38414919 PMCID: PMC10896987 DOI: 10.3389/fcvm.2024.1343361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 01/25/2024] [Indexed: 02/29/2024] Open
Abstract
Objective This study aimed to study the relationship between auto-antibodies against apolipoprotein A1 (anti-apoA1 IgG), human immunodeficiency virus (HIV) infection, anti-retroviral therapy (ART), and the tryptophan pathways in HIV-related cardiovascular disease. Design This case-control study conducted in South Africa consisted of control volunteers (n = 50), people living with HIV (PLWH) on ART (n = 50), and untreated PLWH (n = 44). Cardiovascular risk scores were determined, vascular measures were performed, and an extensive biochemical characterisation (routine, metabolomic, and inflammatory systemic profiles) was performed. Methods Anti-apoA1 IgG levels were assessed by an in-house ELISA. Inflammatory biomarkers were measured with the Meso Scale Discovery® platform, and kynurenine pathway metabolites were assessed using targeted metabolomic profiling conducted by liquid chromatography-multiple reaction monitoring/mass spectrometry (LC-MRM/MS). Results Cardiovascular risk scores and vascular measures exhibited similarities across the three groups, while important differences were observed in systemic inflammatory and tryptophan pathways. Anti-apoA1 IgG seropositivity rates were 15%, 40%, and 70% in control volunteers, PLWH ART-treated, and PLWH ART-naïve, respectively. Circulating anti-apoA1 IgG levels were significantly negatively associated with CD4+ cell counts and positively associated with viremia and pro-inflammatory biomarkers (IFNγ, TNFα, MIPα, ICAM-1, VCAM-1). While circulating anti-apoA1 IgG levels were associated with increased levels of kynurenine in both control volunteers and PLWH, the kynurenine/tryptophan ratio was significantly increased in PLWH ART-treated. Conclusion HIV infection increases the humoral response against apoA1, which is associated with established HIV severity criteria and kynurenine pathway activation.
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Affiliation(s)
- Miguel A. Frias
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland
- Department of Medical Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Sabrina Pagano
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland
- Department of Medical Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Nasim Bararpour
- Faculty Unit of Toxicology, CURML, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
- Department of Genetics, Stanford University, Stanford, CA, United States
- Stanford Center for Genomics and Personalized Medicine, Stanford, CA, United States
| | - Jonathan Sidibé
- Faculty Unit of Toxicology, CURML, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Festus Kamau
- Centre for Cardiometabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Vanessa Fétaud-Lapierre
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland
- Department of Medical Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Peter Hudson
- Cape Heart Institute, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Aurélien Thomas
- Faculty Unit of Toxicology, CURML, Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
- Unit of Forensic Toxicology and Chemistry, CURML, Lausanne and Geneva University Hospitals, Lausanne, Geneva, Switzerland
| | - Sandrine Lecour
- Cape Heart Institute, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Hans Strijdom
- Centre for Cardiometabolic Research in Africa, Division of Medical Physiology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Nicolas Vuilleumier
- Division of Laboratory Medicine, Diagnostic Department, Geneva University Hospitals, Geneva, Switzerland
- Department of Medical Specialties, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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Longhitano L, Distefano A, Musso N, Bonacci P, Orlando L, Giallongo S, Tibullo D, Denaro S, Lazzarino G, Ferrigno J, Nicolosi A, Alanazi AM, Salomone F, Tropea E, Barbagallo IA, Bramanti V, Li Volti G, Lazzarino G, Torella D, Amorini AM. (+)-Lipoic acid reduces mitochondrial unfolded protein response and attenuates oxidative stress and aging in an in vitro model of non-alcoholic fatty liver disease. J Transl Med 2024; 22:82. [PMID: 38245790 PMCID: PMC10799515 DOI: 10.1186/s12967-024-04880-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a liver disorder characterized by the ac-cumulation of fat in hepatocytes without alcohol consumption. Mitochondrial dysfunction and endoplasmic reticulum (ER) stress play significant roles in NAFLD pathogenesis. The unfolded protein response in mitochondria (UPRmt) is an adaptive mechanism that aims to restore mitochondrial protein homeostasis and mitigate cellular stress. This study aimed to investigate the effects of ( +)-Lipoic acid (ALA) on UPRmt, inflammation, and oxidative stress in an in vitro model of NAFLD using HepG2 cells treated with palmitic acid and oleic acid to induce steatosis. RESULTS Treatment with palmitic and oleic acids increased UPRmt-related proteins HSP90 and HSP60 (heat shock protein), and decreased CLPP (caseinolytic protease P), indicating ER stress activation. ALA treatment at 1 μM and 5 μM restored UPRmt-related protein levels. PA:OA (palmitic acid:oleic acid)-induced ER stress markers IRE1α (Inositol requiring enzyme-1), CHOP (C/EBP Homologous Protein), BIP (Binding Immunoglobulin Protein), and BAX (Bcl-2-associated X protein) were significantly reduced by ALA treatment. ALA also enhanced ER-mediated protein glycosylation and reduced oxidative stress, as evidenced by decreased GPX1 (Glutathione peroxidase 1), GSTP1 (glutathione S-transferase pi 1), and GSR (glutathione-disulfide reductase) expression and increased GSH (Glutathione) levels, and improved cellular senescence as shown by the markers β-galactosidase, γH2Ax and Klotho-beta. CONCLUSIONS In conclusion, ALA ameliorated ER stress, oxidative stress, and inflammation in HepG2 cells treated with palmitic and oleic acids, potentially offering therapeutic benefits for NAFLD providing a possible biochemical mechanism underlying ALA beneficial effects.
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Affiliation(s)
- Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Nicolò Musso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Paolo Bonacci
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Laura Orlando
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Sebastiano Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Simona Denaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Jessica Ferrigno
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Anna Nicolosi
- Hospital Pharmacy Unit, Ospedale Cannizzaro, 95125, Catania, Italy
| | - Amer M Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Federico Salomone
- Division of Gastroenterology, Ospedale Di Acireale, Azienda Sanitaria Provinciale Di Catania, Catania, Italy
| | - Emanuela Tropea
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | | | - Vincenzo Bramanti
- U.O.S. Laboratory Analysis, Maggiore "Nino Baglieri" Hospital - ASP Ragusa, 97015, Modica (RG), Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy.
| | - Giacomo Lazzarino
- UniCamillus-Saint Camillus International University of Health Sciences, Via Di Sant'Alessandro 8, 00131, Rome, Italy
| | - Daniele Torella
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
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