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Liu Y, Hu G, Jia Y, Qin L, Xu L, Chang Y, Li B, Li H. Wnt10b knockdown regulates the relative balance of adipose tissue-resident T cells and inhibits white fat deposition. Mol Biol Rep 2024; 51:272. [PMID: 38302806 DOI: 10.1007/s11033-024-09249-3] [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: 09/21/2023] [Accepted: 01/12/2024] [Indexed: 02/03/2024]
Abstract
BACKGROUND Wnt10b is one of critical Wnt family members that being involved in networks controlling stemness, pluripotency and cell fate decisions. However, its role in adipose-resident T lymphocytes and further in fat metabolism yet remains largely unknown. METHODS AND RESULTS In the present study, we demonstrated a distinctive effect for Wnt10b on the relative balance of T lymphocytes in adipose tissue by using a Wnt10b knockdown mouse model. Wnt10b knockdown led to a reduction of adipose-resident CD4+ T cells and an elevation of Foxp3+/CD4+ Treg cells. Wnt10b-knockdown mice fed with standard diet showed less white fat deposition owing to the suppressed adipogenic process. Moreover, under high fat diet conditions, Wnt10b knockdown resulted in an alleviated obesity symptoms, as well as an improvement of glucose homeostasis and hepatic steatosis. CONCLUSIONS Collectively, we reveal an unexpected and novel function for Wnt10b in mediating the frequency of adipose-resident T cell subsets, that when knockdown skewing toward a Treg-dominated phenotype and further improving fat metabolism.
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Affiliation(s)
- Yan Liu
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Geng Hu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, 271018, China
| | - Yanxin Jia
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, 271018, China
| | - Lining Qin
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Longfei Xu
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Yaxin Chang
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Bin Li
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China
| | - Haifang Li
- College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.
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Jung I, Tu-Sekine B, Jin S, Anokye-Danso F, Ahima RS, Brown TT, Kim SF. Dolutegravir Suppresses Thermogenesis via Disrupting Uncoupling Protein 1 Expression and Mitochondrial Function in Brown/Beige Adipocytes in Preclinical Models. J Infect Dis 2022; 226:1626-1636. [PMID: 35512127 DOI: 10.1093/infdis/jiac175] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 05/02/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Antiretroviral therapy (ART) containing integrase strand transfer inhibitors (INSTIs) has been associated with weight gain in both ART initiation and switch studies, especially in women, but the underlying mechanisms are unclear. METHODS The effects of dolutegravir (DTG) on food intake, energy expenditure, oxygen consumption in female mice, and gene expression from adipose tissues were assessed. Human and murine preadipocytes were treated with DTG either during differentiation into mature brown/beige adipocytes or postdifferentiation. Lipid accumulation, lipolysis, β-adrenergic response, adipogenic markers, mitochondrial respiration, and insulin response were analyzed. RESULTS Two-week administration of DTG to female mice reduced energy expenditure, which was accompanied by decreased uncoupling protein 1 (UCP1) expression in brown/beige adipose tissues. In vitro studies showed that DTG significantly reduced brown adipogenic markers, especially UCP1 in brown and beige adipocytes, whereas drugs from other classes did not. Furthermore, a loss of UCP1 by DTG led to a decrease in mitochondrial complex IV component, followed by a reduction in mitochondrial respiratory capacity and reduced insulin-stimulated glucose uptake. CONCLUSIONS Our findings show that DTG targets UCP1 and mitochondrial functions in brown and beige adipocytes and disrupts thermogenic functions in preclinical models, providing the potential mechanisms by which DTG suppresses energy expenditure leading to weight gain.
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Affiliation(s)
- IkRak Jung
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | - Becky Tu-Sekine
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sunghee Jin
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | - Frederick Anokye-Danso
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | - Rexford S Ahima
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | - Todd T Brown
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
| | - Sangwon F Kim
- Department of Medicine, Division of Endocrinology, Diabetes, and Metabolism, Johns Hopkins University, Baltimore, Maryland, USA
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3
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Ngono Ayissi K, Gorwood J, Le Pelletier L, Bourgeois C, Beaupère C, Auclair M, Foresti R, Motterlini R, Atlan M, Barrail-Tran A, Le Grand R, Desjardins D, Fève B, Lambotte O, Capeau J, Béréziat V, Lagathu C. Inhibition of Adipose Tissue Beiging by HIV Integrase Inhibitors, Dolutegravir and Bictegravir, Is Associated with Adipocyte Hypertrophy, Hypoxia, Elevated Fibrosis, and Insulin Resistance in Simian Adipose Tissue and Human Adipocytes. Cells 2022; 11:cells11111841. [PMID: 35681536 PMCID: PMC9180037 DOI: 10.3390/cells11111841] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 05/23/2022] [Accepted: 06/02/2022] [Indexed: 01/13/2023] Open
Abstract
For people living with HIV, treatment with integrase-strand-transfer-inhibitors (INSTIs) can promote adipose tissue (AT) gain. We previously demonstrated that INSTIs can induce hypertrophy and fibrosis in AT of macaques and humans. By promoting energy expenditure, the emergence of beige adipocytes in white AT (beiging) could play an important role by limiting excess lipid storage and associated adipocyte dysfunction. We hypothesized that INSTIs could alter AT via beiging inhibition. Fibrosis and gene expression were measured in subcutaneous (SCAT) and visceral AT (VAT) from SIV-infected, dolutegravir-treated (SIVART) macaques. Beiging capacity was assessed in human adipose stromal cells (ASCs) undergoing differentiation and being exposed to dolutegravir, bictegravir, or raltegravir. Expression of beige markers, such as positive-regulatory-domain-containing-16 (PRDM16), were lower in AT of SIVART as compared to control macaques, whereas fibrosis-related genes were higher. Dolutegravir and bictegravir inhibited beige differentiation in ASCs, as shown by lower expression of beige markers and lower cell respiration. INSTIs also induced a hypertrophic insulin-resistant state associated with a pro-fibrotic phenotype. Our results indicate that adipocyte hypertrophy induced by INSTIs is involved via hypoxia (revealed by a greater hypoxia-inducible-factor-1-alpha gene expression) in fat fibrosis, beiging inhibition, and thus (via positive feedback), probably, further hypertrophy and associated insulin resistance.
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Affiliation(s)
- Kenza Ngono Ayissi
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
| | - Jennifer Gorwood
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
| | - Laura Le Pelletier
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
| | - Christine Bourgeois
- UMR1184 Inserm, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Saclay, 92032 Fontenay-aux-Roses, France; (C.B.); (A.B.-T.); (R.L.G.); (D.D.); (O.L.)
| | - Carine Beaupère
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
| | - Martine Auclair
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
| | - Roberta Foresti
- INSERM UMR_S955, IMRB, Université Paris-Est Créteil, 94000 Créteil, France; (R.F.); (R.M.)
| | - Roberto Motterlini
- INSERM UMR_S955, IMRB, Université Paris-Est Créteil, 94000 Créteil, France; (R.F.); (R.M.)
| | - Michael Atlan
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
- Service de Chirurgie Plastique et Esthétique, Hôpital Tenon, AP-HP, 75020 Paris, France
| | - Aurélie Barrail-Tran
- UMR1184 Inserm, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Saclay, 92032 Fontenay-aux-Roses, France; (C.B.); (A.B.-T.); (R.L.G.); (D.D.); (O.L.)
| | - Roger Le Grand
- UMR1184 Inserm, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Saclay, 92032 Fontenay-aux-Roses, France; (C.B.); (A.B.-T.); (R.L.G.); (D.D.); (O.L.)
| | - Delphine Desjardins
- UMR1184 Inserm, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Saclay, 92032 Fontenay-aux-Roses, France; (C.B.); (A.B.-T.); (R.L.G.); (D.D.); (O.L.)
| | - Bruno Fève
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
- Service d’Endocrinologie, Diabétologie et Reproduction, Hôpital Saint-Antoine, CRMR, PRISIS, AP-HP, 75012 Paris, France
| | - Olivier Lambotte
- UMR1184 Inserm, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, CEA, Université Paris Saclay, 92032 Fontenay-aux-Roses, France; (C.B.); (A.B.-T.); (R.L.G.); (D.D.); (O.L.)
- Service de Médecine Interne et Immunologie Clinique, Hôpital Bicêtre, AP-HP, 94270 Kremlin-Bicêtre, France
| | - Jacqueline Capeau
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
| | - Véronique Béréziat
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
- Correspondence: (V.B.); (C.L.)
| | - Claire Lagathu
- Inserm UMR_S938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-Métabolisme et Nutrition (ICAN), Sorbonne Université, 75012 Paris, France; (K.N.A.); (J.G.); (L.L.P.); (C.B.); (M.A.); (M.A.); (B.F.); (J.C.)
- Correspondence: (V.B.); (C.L.)
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4
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Pourcher V, Capeau J, Dudoit Y, Boccara F, Soulié C, Ndoadoumgue AL, Charlotte F, Fellahi S, Bastard JP, Béréziat V, Lagathu C, Marcelin AG, Peytavin G, Boutron-Ruault MC, Tubbax C, D'Avout D'Auerstaedt A, Valantin MA, Schneider L, Costagliola D, Katlama C, Assoumou L, Pourcher G. Comparison of HIV-Infected and Noninfected Patients Undergoing Bariatric Surgery: The ObeVIH Study. J Acquir Immune Defic Syndr 2022; 90:240-248. [PMID: 35185138 DOI: 10.1097/qai.0000000000002939] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 01/10/2022] [Indexed: 11/27/2022]
Abstract
OBJECTIVE The aim of this study was to compare clinical characteristics and adipose/liver tissue histology analysis in HIV-infected and HIV-uninfected subjects undergoing bariatric surgery. DESIGN This was a cross-sectional study of HIV-infected subjects undergoing single-port sleeve gastrectomy with prospective enrolment and frequency age (±5 years), sex, and body mass index (BMI, ± 5 kg/m2) matched on HIV-uninfected subjects. METHODS This study was conducted at a single clinical site at Pitié-Salpêtrière hospital-Paris-France comprising 19 HIV-uninfected and 21 HIV-infected subjects with plasma VL < 20 copies/mL, all with a BMI > 40 kg/m2 or >35 kg/m2 with comorbidities. Histology of subcutaneous and visceral abdominal adipose tissue (SCAT/VAT) and liver biopsies was collected during single-port sleeve gastrectomy. Outcomes included anthropometric characteristics, comorbidities, cardiovascular parameters, adipose tissue, and liver histology. RESULTS The age of HIV-infected participants was (median, interquartile range IQR) 48 y (42-51), with 76.2% females, a BMI of 41.4 kg/m2 (37.3-44.4), an antiretroviral duration of 16 y (8-21), current integrase strand transfer inhibitor (INSTI)-based regimen in 15 participants and non-INSTI regimen in 6 participants, and a CD4 count of 864/mm3 (560-1066). The age of controls was 43 y (37-51), with 78.9% females and a BMI of 39.2 kg/m2 (36.3-42.6). Anthropometric characteristics, comorbidities, and cardiovascular parameters did not differ according to HIV status and INSTI treatment. The number of macrophage crown-like structures in SCAT was lower in INSTI-treated participants than in HIV-uninfected participants (P = 0.02) and non-INSTI-treated HIV-infected subjects (P = 0.07). Hepatic steatosis and liver disease severity global score were lower in INSTI-treated participants than in non-INSTI-treated HIV-infected participants (P = 0.05 and P = 0.04, respectively). CONCLUSIONS HIV-infected and HIV-uninfected subjects undergoing bariatric surgery presented a similar profile regarding anthropometric measures, cardiovascular parameters, and comorbidities. However, INSTI-treated participants presented milder SCAT and liver alterations than non-INSTI-treated participants.
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Affiliation(s)
- V Pourcher
- Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - J Capeau
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine (CRSA), RHU CARMMA, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
| | - Y Dudoit
- Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
| | - F Boccara
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine (CRSA), RHU CARMMA, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
- Sorbonne Université, GRC n°22, C MV-Complications Cardiovasculaires et Métaboliques chez les patients vivant avec le Virus de l'immunodéficience humaine, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Hôpital Saint-Antoine Service de Cardiologie, Paris, France
| | - C Soulié
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
- Laboratoire de Virologie, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - A L Ndoadoumgue
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - F Charlotte
- Service d'anatomie pathologique, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - S Fellahi
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine (CRSA), RHU CARMMA, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
- Department of Biochemistry-Pharmacology-Molecular Biology, APHP, Hôpital Henri-Mondor, Université Paris Est Créteil, France
| | - J P Bastard
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine (CRSA), RHU CARMMA, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
- Department of Biochemistry-Pharmacology-Molecular Biology, APHP, Hôpital Henri-Mondor, Université Paris Est Créteil, France
| | - V Béréziat
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine (CRSA), RHU CARMMA, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
| | - C Lagathu
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine (CRSA), RHU CARMMA, Institute of Cardiometabolism and Nutrition (ICAN), Paris, France
| | - A G Marcelin
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
- Laboratoire de Virologie, Groupe Hospitalier Universitaire APHP-Sorbonne Université, Hôpital Pitié-Salpêtrière, Paris, France
| | - G Peytavin
- APHP, Service de Pharmacologie and Toxicologie, Hôpital Bichat, IAME, Inserm UMR 1137, UF301, Université de Paris, Paris, France
| | - M C Boutron-Ruault
- Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
- Obesity Center, Department of Digestive, Oncologic and Metabolic Surgery, Institut Mutualiste Montsouris, Paris, France; and
| | - C Tubbax
- Obesity Center, Department of Digestive, Oncologic and Metabolic Surgery, Institut Mutualiste Montsouris, Paris, France; and
| | - A D'Avout D'Auerstaedt
- Obesity Center, Department of Digestive, Oncologic and Metabolic Surgery, Institut Mutualiste Montsouris, Paris, France; and
| | - M A Valantin
- Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - L Schneider
- Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - D Costagliola
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - C Katlama
- Sorbonne Université, AP-HP, Groupe Hospitalier Universitaire APHP-Sorbonne Université Hôpital Pitié-Salpêtrière, Service de Maladies Infectieuses et Tropicales, Paris, France
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - L Assoumou
- Sorbonne Université, Inserm, Institut Pierre Louis d'Épidémiologie et de Santé Publique, Paris, France
| | - G Pourcher
- Obesity Center, Department of Digestive, Oncologic and Metabolic Surgery, Institut Mutualiste Montsouris, Paris, France; and
- Centre de Recherche en Epidémiologie et Santé des Population (CESP), Inserm, Paris-Saclay University, France
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5
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Agarwal N, Iyer D, Saha P, Cox AR, Xia Y, Utay NS, Somasundaram A, Schubert U, Lake JE, Hartig SM, Balasubramanyam A. HIV-1 Viral Protein R Couples Metabolic Inflexibility With White Adipose Tissue Thermogenesis. Diabetes 2021; 70:2014-2025. [PMID: 34233931 PMCID: PMC8576429 DOI: 10.2337/db20-0888] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 06/29/2021] [Indexed: 11/13/2022]
Abstract
Persons living with HIV (PLWH) manifest chronic disorders of brown and white adipose tissues that lead to diabetes and metabolic syndrome. The mechanisms that link viral factors to defective adipose tissue function and abnormal energy balance in PLWH remain incompletely understood. Here, we explored how the HIV accessory protein viral protein R (Vpr) contributes to adaptive thermogenesis in two mouse models and human adipose tissues. Uncoupling protein 1 (UCP1) gene expression was strongly increased in subcutaneous white adipose tissue (WAT) biopsy specimens from PLWH and in subcutaneous WAT of the Vpr mice, with nearly equivalent mRNA copy number. Histology and functional studies confirmed beige transformation in subcutaneous but not visceral WAT in the Vpr mice. Measurements of energy balance indicated Vpr mice displayed metabolic inflexibility and could not shift efficiently from carbohydrate to fat metabolism during day-night cycles. Furthermore, Vpr mice showed a marked inability to defend body temperature when exposed to 4°C. Importantly, Vpr couples higher tissue catecholamine levels with UCP1 expression independent of β-adrenergic receptors. Our data reveal surprising deficits of adaptive thermogenesis that drive metabolic inefficiency in HIV-1 Vpr mouse models, providing an expanded role for viral factors in the pathogenesis of metabolic disorders in PLWH.
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Affiliation(s)
- Neeti Agarwal
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| | - Dinakar Iyer
- Department of Biology and Biochemistry, University of Houston, Houston, TX
| | - Pradip Saha
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| | - Aaron R Cox
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
| | - Yan Xia
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
| | - Netanya S Utay
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, TX
| | - Anoma Somasundaram
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, TX
| | | | - Jordan E Lake
- Division of Infectious Diseases, Department of Internal Medicine, McGovern Medical School at the University of Texas Health Science Center, Houston, TX
| | - Sean M Hartig
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX
| | - Ashok Balasubramanyam
- Division of Diabetes, Endocrinology, and Metabolism, Baylor College of Medicine, Houston, TX
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6
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Bourgeois C, Gorwood J, Olivo A, Le Pelletier L, Capeau J, Lambotte O, Béréziat V, Lagathu C. Contribution of Adipose Tissue to the Chronic Immune Activation and Inflammation Associated With HIV Infection and Its Treatment. Front Immunol 2021; 12:670566. [PMID: 34220817 PMCID: PMC8250865 DOI: 10.3389/fimmu.2021.670566] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Accepted: 05/24/2021] [Indexed: 12/12/2022] Open
Abstract
White adipose tissue (AT) contributes significantly to inflammation – especially in the context of obesity. Several of AT’s intrinsic features favor its key role in local and systemic inflammation: (i) large distribution throughout the body, (ii) major endocrine activity, and (iii) presence of metabolic and immune cells in close proximity. In obesity, the concomitant pro-inflammatory signals produced by immune cells, adipocytes and adipose stem cells help to drive local inflammation in a vicious circle. Although the secretion of adipokines by AT is a prime contributor to systemic inflammation, the lipotoxicity associated with AT dysfunction might also be involved and could affect distant organs. In HIV-infected patients, the AT is targeted by both HIV infection and antiretroviral therapy (ART). During the primary phase of infection, the virus targets AT directly (by infecting AT CD4 T cells) and indirectly (via viral protein release, inflammatory signals, and gut disruption). The initiation of ART drastically changes the picture: ART reduces viral load, restores (at least partially) the CD4 T cell count, and dampens inflammatory processes on the whole-body level but also within the AT. However, ART induces AT dysfunction and metabolic side effects, which are highly dependent on the individual molecules and the combination used. First generation thymidine reverse transcriptase inhibitors predominantly target mitochondrial DNA and induce oxidative stress and adipocyte death. Protease inhibitors predominantly affect metabolic pathways (affecting adipogenesis and adipocyte homeostasis) resulting in insulin resistance. Recently marketed integrase strand transfer inhibitors induce both adipocyte adipogenesis, hypertrophy and fibrosis. It is challenging to distinguish between the respective effects of viral persistence, persistent immune defects and ART toxicity on the inflammatory profile present in ART-controlled HIV-infected patients. The host metabolic status, the size of the pre-established viral reservoir, the quality of the immune restoration, and the natural ageing with associated comorbidities may mitigate and/or reinforce the contribution of antiretrovirals (ARVs) toxicity to the development of low-grade inflammation in HIV-infected patients. Protecting AT functions appears highly relevant in ART-controlled HIV-infected patients. It requires lifestyle habits improvement in the absence of effective anti-inflammatory treatment. Besides, reducing ART toxicities remains a crucial therapeutic goal.
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Affiliation(s)
- Christine Bourgeois
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Jennifer Gorwood
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Anaelle Olivo
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France
| | - Laura Le Pelletier
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Jacqueline Capeau
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Olivier Lambotte
- CEA - Université Paris Saclay - INSERM U1184, Center for Immunology of Viral Infections and Autoimmune Diseases, IDMIT Department, IBFJ, Fontenay-aux-Roses, France.,AP-HP, Groupe Hospitalier Universitaire Paris Saclay, Hôpital Bicêtre, Service de Médecine Interne et Immunologie Clinique, Le Kremlin-Bicêtre, France
| | - Véronique Béréziat
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
| | - Claire Lagathu
- Sorbonne Université, INSERM UMR_S 938, Centre de Recherche Saint-Antoine, Institut Hospitalo-Universitaire de Cardio-métabolisme et Nutrition (ICAN), FRM EQU201903007868, Paris, France
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Capeau J, Lagathu C, Béréziat V, Fève B. Recent data on adipose tissue, insulin resistance, diabetes and dyslipidaemia in antiretroviral therapy controlled HIV-infected persons. Curr Opin HIV AIDS 2021; 16:141-147. [PMID: 33783403 DOI: 10.1097/coh.0000000000000674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
PURPOSE OF REVIEW Increased total body fat with truncal redistribution is common in antiretroviral therapy (ART)-controlled persons living with HIV(PLWH), leading to insulin resistance, prediabetes/diabetes and dyslipidaemia. We address these topics here. RECENT FINDINGS Most antiretrovirals are associated with gain in trunk fat, including visceral adipose tissue (VAT). Protease-inhibitors could inhibit white fat ability to dissipate energy (i.e. beiging) favouring fat gain. Expansion of VAT is associated with a pro-inflammatory profile linked to the tryptophan-kynurenine pathway and CD4+ subtypes. ART-associated increased adipose tissue (AT) quantity leads to decreased AT density, insulin resistance and dyslipidaemia that could be improved by lifestyle modifications.PLWH present high level of insulin resistance, regardless of their treatment, and a higher prevalence of prediabetes, but not diabetes, than noninfected persons. Otherwise, HbA1c values appear inaccurate to diagnose prediabetes/diabetes in PLWH.ART-related-dyslipidaemia is characterized by elevated LDL-C and/or high triglycerides and reduced HDL-C. Whereas treatment with protease inhibitors generally results in worsened lipid values, treatment with integrase-strand-transfer-inhibitors is associated with a better profile. Tenofovir-alafenamide is associated with higher lipid levels than tenofovir-disoproxil-fumarate. Treatment of LDL-C-dyslipidaemia could benefit, in statin-insufficiently controlled patients, from the class of proprotein-convertase-subtilsin-kenin-type-9 (PCSK-9) inhibitors. SUMMARY Lifestyle modifications are mandatory to reduce fat and improve dysglycaemia/dyslipidaemia. New drugs can efficiently control diabetes and LDL-C-dyslipidaemia.
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Affiliation(s)
- Jacqueline Capeau
- Sorbonne Université-Inserm, Faculty of Medicine, Centre de Recherche Saint-Antoine (CRSA), UMR_S938, ICAN
| | - Claire Lagathu
- Sorbonne Université-Inserm, Faculty of Medicine, Centre de Recherche Saint-Antoine (CRSA), UMR_S938, ICAN
| | - Véronique Béréziat
- Sorbonne Université-Inserm, Faculty of Medicine, Centre de Recherche Saint-Antoine (CRSA), UMR_S938, ICAN
| | - Bruno Fève
- Sorbonne Université-Inserm, Faculty of Medicine, Centre de Recherche Saint-Antoine (CRSA), UMR_S938, ICAN
- Department of Endocrinology, CRMR Prisis, Saint-Antoine Hospital, GH APHP-Sorbonne Université, Paris, France
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Abstract
Early in the HIV epidemic, lipodystrophy, characterized by subcutaneous fat loss (lipoatrophy), with or without central fat accumulation (lipohypertrophy), was recognized as a frequent condition among people living with HIV (PLWH) receiving combination antiretroviral therapy. The subsequent identification of thymidine analogue nucleoside reverse transcriptase inhibitors as the cause of lipoatrophy led to the development of newer antiretroviral agents; however, studies have demonstrated continued abnormalities in fat and/or lipid storage in PLWH treated with newer drugs (including integrase inhibitor-based regimens), with fat gain due to restoration to health in antiretroviral therapy-naive PLWH, which is compounded by the rising rates of obesity. The mechanisms of fat alterations in PLWH are complex, multifactorial and not fully understood, although they are known to result in part from the direct effects of HIV proteins and antiretroviral agents on adipocyte health, genetic factors, increased microbial translocation, changes in the adaptive immune milieu after infection, increased tissue inflammation and accelerated fibrosis. Management includes classical lifestyle alterations with a role for pharmacological therapies and surgery in some patients. Continued fat alterations in PLWH will have an important effect on lifespan, healthspan and quality of life as patients age worldwide, highlighting the need to investigate the critical uncertainties regarding pathophysiology, risk factors and management.
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