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Boccara F, Alili R, Poitou C, Lagathu C, Bereziat V, Le Pelletier L, Vigouroux C, Leprince P, Cohen A, Capeau J. Abnormal immune activation and fibrosis of epicardial adipose tissue in people living with HIV: results from the PIECVIH study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Increased Epicardial Adipose Tissue (EAT) volume has been associated with increased risk of CAD in people living with HIV (PLWH). However, the underlying mechanisms remain unknown.
Purpose
We conducted the PIECVIH study to compare EAT properties in relation with CAD between PLWH and HIV-negative patients, all undergoing coronary artery bypass graft (CABG).
Methods
The PIECVIH study is a cross sectional prospective study performed in a single center enrolling 11 ART-controlled PLWH and 11 matched (age ± 3 years and sex) HIV-negative patients requiring CABG. During surgery, EAT and thoracic subcutaneous fat samples were taken. Gene expression was analyzed in samples with sufficient mRNA quality (7 PLWH and 7 HIV− for subcutaneous fat, 9 PLWH and 8 HIV− samples for EAT). The expression of 30 genes, mainly related to inflammation, immune activation, fibrosis and adipokines, was evaluated and related to the expression of the reference gene 18S.
Results
The mean age of the cohort was 59.8 years (100% male). The cardiovascular risk profile was quite similar between both groups including 66% smokers, 64% hypercholesterolemia, 36% hypertriglyceridemia and 56% hypertension. However, HIV− subjects had a higher prevalence of diabetes (73% vs 18%, p=0.002) and a higher body mass index than HIV− (23,2 vs 27.5 kg/m2, p=0.017). The level of gene expression of all tested genes was not different between PLWH and HIV− subjects in subcutaneous fat. Conversely, in EAT, the relative expression of IL-6 and CCL2 was 3–5-fold higher in samples issued from PLWH than from HIV−: respectively 0.46 vs 0.13 (p=0.03) and 1.13 vs 0.24 (p=0.03). Moreover, only in EAT, and only in PLWH, the expression of the chemokines CCL2 and CCL5 and of the macrophage immune activation markers (CD68, CD163, CD206), was globally related to the expression of genes involved into fibrosis: collagen genes (COL1A1, COL3A1, COL3A1, COL6A2, COL6A3), TGFB, LOX (lysyl-oxidase) and ASAH1 (acid ceraminidase). Only in EAT and only in PLWH, the expression of IGF1 and CES (carboxylesterase 1), two genes associated with increased cardiovascular risk, was related to the expression of genes associated with immune activation, fibrosis and vascularization (VEGFA). Only in PLWH, the Gensini score, evaluating the severity of CAD, was associated with EAT expression of collagen 6 and of the CV risk factors IGF1 and CES.
Conclusion
In very high CV risk subjects undergoing CABG, inflammation/immune activation of EAT was higher in PLWH as compared to controls. In EAT of PLWH, immune activation was strongly associated with fibrosis stressing for a dysfunctional EAT. Moreover, the severity of CAD, as addressed by the Gensini score, was associated with collagen 6 expression, a deleterious collagen in the context of EAT fibrosis. We propose that in PLWH, altered EAT immune profile and fibrosis could be responsible for reported accelerated CAD.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): French Agency for Research on AIDS and Viral Hepatitis
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Affiliation(s)
- F Boccara
- AP-HP - Hospital Saint Antoine , Paris , France
| | - R Alili
- Sorbonne Université, Inserm, Nutrition and obesities: systemic approaches (NutriOmics), and APHP , Paris , France
| | - C Poitou
- Sorbonne Université, Inserm, Nutrition and obesities: systemic approaches (NutriOmics), and APHP , Paris , France
| | - C Lagathu
- , Inserm UMR_S 938, Centre de Recherche Saint-Antoine (CRSA) , Paris , France
| | - V Bereziat
- , Inserm UMR_S 938, Centre de Recherche Saint-Antoine (CRSA) , Paris , France
| | - L Le Pelletier
- , Inserm UMR_S 938, Centre de Recherche Saint-Antoine (CRSA) , Paris , France
| | - C Vigouroux
- AP-HP - Hospital Saint Antoine , Paris , France
| | - P Leprince
- APHP, Pitié-Salpétrière Hospital, Department of Cardiology, GH APHP-Sorbonne Université, France , Paris , France
| | - A Cohen
- AP-HP - Hospital Saint Antoine , Paris , France
| | - J Capeau
- , Inserm UMR_S 938, Centre de Recherche Saint-Antoine (CRSA) , Paris , France
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Vali A, Dalle H, Gilleron J, Havis E, Garcia M, Beaupère C, Denis C, Poussin K, Roblot N, Ledent T, Bouillet B, Cormont M, Tanti JF, Capeau J, Vatier C, Fève B, Grosfeld A, Moldes M. Rôle du récepteur adipocytaire des glucocorticoïdes dans l’expansion et la vascularisation du tissu adipeux. NUTR CLIN METAB 2022. [DOI: 10.1016/j.nupar.2021.12.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bastard JP, Couffignal C, Fellahi S, Bard JM, Mentre F, Salmon D, Katlama C, Raffi F, Leport C, Capeau J. Diabetes and dyslipidaemia are associated with oxidative stress independently of inflammation in long-term antiretroviral-treated HIV-infected patients. Diabetes Metab 2019; 45:573-581. [PMID: 30862472 DOI: 10.1016/j.diabet.2019.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 02/15/2019] [Accepted: 02/24/2019] [Indexed: 12/31/2022]
Abstract
AIM Ageing HIV-infected patients controlled by antiretroviral therapy (ART) frequently present age-related comorbidities, such as cardiovascular (CV) events, diabetes, dyslipidaemia, hypertension and chronic kidney disease (CKD). The prevalence of these comorbidities was evaluated in a cohort of long-term-monitored ART-controlled HIV-infected patients, then followed by a search into whether oxidative stress, like inflammation, might be associated with metabolic parameters and/or comorbidities. METHODS Included were 352 long-term ART patients who started with protease inhibitors (PIs) in 1997-1999. They were evaluated at their final visit, 11 years later, for previous CV events, prevalence of diabetes, LDL-related and atherogenic (high TG/HDL) dyslipidaemias, hypertension and CKD. Also measured were circulating biomarkers to explore oxidative stress (Lp-PLA2, oxLDL, oxLDL/LDL ratio, paraoxonase and arylesterase activities), inflammation/immune activation (hsCRP, hsIL-6, D dimer, soluble CD14, β2 microglobulin, cystatin C), adipokines and insulin resistance. Levels were compared in patients with and without each comorbidity or condition using non-parametric correlation tests and multivariate adjusted analyses. RESULTS At the final visit, 81.5% of patients were male and were aged (median, IQR) 49 years (45-56); BMI was 23.0 kg/m2 (21.1-25.4), CD4+ lymphocytes were 620 cells/mm3 (453-790) and 91.5% had undetectable HIV-1 viral loads. The prevalence of diabetes was 11%, and LDL-related dyslipidaemia 28%, atherogenic dyslipidaemia 9%, hypertension 28%, CKD 9% and previous CV events 9%. Diabetes and atherogenic dyslipidaemia were associated with increased oxidative stress and independently with inflammation. LDL-related dyslipidaemia and impaired fasting glucose were associated with increased oxidative stress. No association of these biomarkers was detected with hypertension, CKD and previous CV events. CONCLUSION In long-term-treated HIV-infected patients with frequent comorbid conditions, oxidative stress could be contributing to diabetes and LDL-related and atherogenic dyslipidaemias independently of inflammation.
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Affiliation(s)
- J-P Bastard
- Faculty of medicine, Sorbonne université, inserm UMR_S938, ICAN, AP-HP, hôpital Tenon, 27, rue Chaligny, 75571 Paris cedex 12, Paris, France
| | - C Couffignal
- Université Paris Diderot, Sorbonne Paris Cité, inserm UMR_S1137, COREB APHP, 16, rue Henri-Huchard, 75890 Paris cedex 18, France
| | - S Fellahi
- Faculty of medicine, Sorbonne université, inserm UMR_S938, ICAN, AP-HP, hôpital Tenon, 27, rue Chaligny, 75571 Paris cedex 12, Paris, France
| | - J-M Bard
- UFR des sciences pharmaceutiques et biologiques, MMS - EA 2160, IUML FR3473 CNRS, Nantes and institut de cancérologie de l'Ouest, 4, rue Bras France, BP61112, 44035 Nantes cedex 1, France
| | - F Mentre
- Université Paris Diderot, Sorbonne Paris Cité, inserm UMR_S1137, COREB APHP, 16, rue Henri-Huchard, 75890 Paris cedex 18, France
| | - D Salmon
- Service des maladies infectieuses et tropicales, hôpital Cochin, AP-HP, 27, rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - C Katlama
- Service de maladies infectieuses et tropicales hôpital Pitié-Salpêtrière, AP-HP, Sorbonne Universités, UPMC Université Paris-6, inserm UMR_S1136 IPLESP, 47-83, boulevard de l'Hôpital, 75013 Paris, France
| | - F Raffi
- Service des maladies infectieuses et tropicales, inserm CIC 1413, CHU de Nantes, 1, place Alexis-Ricordeau, 44000 Nantes, France
| | - C Leport
- Université Paris Diderot, Sorbonne Paris Cité, inserm UMR_S1137, COREB APHP, 16, rue Henri-Huchard, 75890 Paris cedex 18, France
| | - J Capeau
- Faculty of medicine, Sorbonne université, inserm UMR_S938, ICAN, AP-HP, hôpital Tenon, 27, rue Chaligny, 75571 Paris cedex 12, Paris, France.
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Pol S, Haour G, Fontaine H, Dorival C, Petrov-Sanchez V, Bourliere M, Capeau J, Carrieri P, Larrey D, Larsen C, Marcellin P, Pawlostky JM, Nahon P, Zoulim F, Cacoub P, de Ledinghen V, Mathurin P, Negro F, Pageaux GP, Yazdanpanah Y, Wittkop L, Zarski JP, Carrat F. The negative impact of HBV/HCV coinfection on cirrhosis and its consequences. Aliment Pharmacol Ther 2017; 46:1054-1060. [PMID: 28994127 DOI: 10.1111/apt.14352] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 06/09/2017] [Accepted: 09/10/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Hepatitis B virus (HBV)/hepatitis C virus (HCV) confection has been rarely studied in nonasian series. AIM To compare the characteristics of HBV/HCV coinfected patients to those of HBV- or HCV-monoinfected patients in the ANRS CO22 HEPATHER cohort study. PATIENTS AND METHODS Of the 20 936 included patients, 95 had HBV/HCV coinfection (hepatitis B surface antigen, anti-HCV antibody and HCV RNA positive) and were matched with 375 HBV- and 380 HCV-monoinfected patients on age, gender and time since HBV or HCV diagnosis. RESULTS F3-F4 fibrosis was more frequent in coinfected patients (58%) than in HBV- (32%, P < .0001), but similar in HCV-monoinfected patients (52%, P = .3142). Decompensated cirrhosis was more frequent in coinfected patients (11%) than in HBV- (2%, P = .0002) or HCV- (4%, P = .0275) monoinfected patients. Past excessive alcohol use was more frequent in coinfected patients (26%) than in HBV (12%, P = .0011), but similar in HCV monoinfected patients (32%, P = .2868). Coinfected patients had a higher proportion with arterial hypertension (42%) than HBV- (26%) or HCV-monoinfected patients (25%) (P < .003). Multivariable analysis confirmed the association between F3-F4 fibrosis and HCV infection in HBV-infected patients (OR = 3.84, 95% CI 1.99-7.43) and the association between decompensated cirrhosis and coinfection in HBV infected (OR = 5.58, 95% CI 1.42-22.0) or HCV infected patients (OR = 3.02, 95% CI 1.22-7.44). CONCLUSIONS HCV coinfection harmfully affects liver fibrosis in HBV patients, while decompensated cirrhosis is increased in coinfected patients compared with HBV- or HCV-monoinfected patients. HCV treatment is as safe and effective in coinfected as monoinfected patients and should be considered following the same rules as HCV monoinfected patients.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - P Nahon
- Bondy, France.,Saint-Denis, France
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Sarkis R, Honiger J, Chafai N, Baudrimont M, Sarkis K, Delelo R, Becquemont L, Benoist S, Balladur P, Capeau J, Nordlinger B. Semiautomatic Macroencapsulation of Fresh or Cryopreserved Porcine Hepatocytes Maintain Their Ability for Treatment of Acute Liver Failure. Cell Transplant 2017. [DOI: 10.3727/000000001783986314] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- R. Sarkis
- Research Unit 402, INSERM, Paris, France
- Departments of Surgery, Hôpital Saint-Antoine, Paris, France
| | - J. Honiger
- Research Unit 402, INSERM, Paris, France
| | - N. Chafai
- Research Unit 402, INSERM, Paris, France
| | - M. Baudrimont
- Departments of Pathology, Hôpital Saint-Antoine, Paris, France
| | - K. Sarkis
- Research Unit 402, INSERM, Paris, France
| | - R. Delelo
- Research Unit 402, INSERM, Paris, France
| | - L. Becquemont
- Departments of Pharmacology, Hôpital Saint-Antoine, Paris, France
| | - S. Benoist
- Research Unit 402, INSERM, Paris, France
- Department of Surgery, Hôpital Ambroise Paré Boulogne-Billancourt, France
| | - P. Balladur
- Research Unit 402, INSERM, Paris, France
- Departments of Surgery, Hôpital Saint-Antoine, Paris, France
| | - J. Capeau
- Research Unit 402, INSERM, Paris, France
| | - B. Nordlinger
- Research Unit 402, INSERM, Paris, France
- Department of Surgery, Hôpital Ambroise Paré Boulogne-Billancourt, France
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Fellahi S, Béraud L, Marlin G, Vigouroux C, Warszawski J, Capeau J, Bastard JP. Comparison of two techniques of adiponectin assay, ELISA and immunoturbidimetry: Should we move towards standardization? Diabetes Metab 2017; 43:395-397. [PMID: 28089503 DOI: 10.1016/j.diabet.2016.11.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 11/21/2016] [Indexed: 01/03/2023]
Affiliation(s)
- S Fellahi
- AP-HP, Hôpital Tenon, UF Bio-marqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, 75020 Paris, France; Inserm UMR_S938, ICAN, CDR Saint-Antoine, 75012 Paris, France; Sorbonne Universités, UPMC Université Paris 06, UMR_S 938, 75005 Paris, France
| | - L Béraud
- AP-HP, Hôpital Tenon, UF Bio-marqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, 75020 Paris, France
| | - G Marlin
- AP-HP, Hôpital Tenon, UF Bio-marqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, 75020 Paris, France
| | - C Vigouroux
- Inserm UMR_S938, ICAN, CDR Saint-Antoine, 75012 Paris, France; Sorbonne Universités, UPMC Université Paris 06, UMR_S 938, 75005 Paris, France; AP-HP, Hôpital Saint-Antoine, Laboratoire commun de Biologie et Génétique Moléculaire, 75012 Paris, France
| | - J Warszawski
- Inserm, CESP U1018, Université Paris-Sud, AP-HP, Hôpital Bicêtre, Le Kremlin-Bicêtre, France
| | - J Capeau
- AP-HP, Hôpital Tenon, UF Bio-marqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, 75020 Paris, France; Inserm UMR_S938, ICAN, CDR Saint-Antoine, 75012 Paris, France; Sorbonne Universités, UPMC Université Paris 06, UMR_S 938, 75005 Paris, France
| | - J-P Bastard
- AP-HP, Hôpital Tenon, UF Bio-marqueurs Inflammatoires et Métaboliques, Service de Biochimie et Hormonologie, 75020 Paris, France; Inserm UMR_S938, ICAN, CDR Saint-Antoine, 75012 Paris, France; Sorbonne Universités, UPMC Université Paris 06, UMR_S 938, 75005 Paris, France.
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Lemoine M, Chevaliez S, Bastard JP, Fartoux L, Chazouillères O, Capeau J, Pawlotsky JM, Serfaty L. Association between IL28B polymorphism, TNFα and biomarkers of insulin resistance in chronic hepatitis C-related insulin resistance. J Viral Hepat 2015; 22:890-6. [PMID: 25818002 DOI: 10.1111/jvh.12408] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 01/31/2015] [Indexed: 12/31/2022]
Abstract
TNFα has been shown to play a role in hepatitis C virus (HCV)-induced insulin resistance (IR). Polymorphism of the IL28B gene that encodes IFN-lambda 3 may be associated with IR through modulation of TNFα. The aim of this study was to investigate the relationship between IL28B rs12979860 genotype, the level of TNFα activation and the degree of IR in patients with chronic hepatitis C. One hundred and thirty-three nondiabetic genotype 1 HCV-infected patients with biopsy proven noncirrhotic hepatitis C were investigated for IR (using HOMA index), IL28B rs12979860 genotype and fasting circulating levels of soluble receptor 1 of TNFα (sTNFR1) and adipokines: leptin, adiponectin and IL-6. The HOMA-IR was positively correlated with serum levels of leptin (r = 0.35, P < 0.0001) and sTNFR1 (r = 0.35, P < 0.0001) but not with IL-6 or adiponectin. IL28B rs12979860 CC genotype was observed in 35% patients. Genotype CC and nongenotype CC patients were similar in terms of HOMA-IR (means 1.6 ± 0.9 vs 1.7 ± 1.4) and had similar circulating levels of sTNFR1 and adipokines. Independent factors associated with IR were ferritin (OR = 1.002, P = 0.02), leptin (OR = 1.06, P = 0.02) and sTNFR1 (OR = 7.9, P = 0.04). This study suggests that in nondiabetic, noncirrhotic, HCV genotype 1-infected patients, there is no relationship between IL28B rs12979860 genotype and HOMA-IR or sTNFR1 level. HCV-related IR may be mediated through TNFα independent of IL28B genotype.
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Affiliation(s)
- M Lemoine
- Service d'Hépatologie, APHP, Hôpital Saint-Antoine, Paris, France
- UPMC Université Paris 06, UMR_S938, Paris, France
| | - S Chevaliez
- APHP, Laboratoire de Virologie, Hopital Henri Mondor, Créteil, France
- INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - J P Bastard
- UPMC Université Paris 06, UMR_S938, Paris, France
- Service de biochimie et hormonologie, APHP, Hôpital Tenon, Paris, France
| | - L Fartoux
- Service d'Hépatologie, APHP, Hôpital Saint-Antoine, Paris, France
| | - O Chazouillères
- Service d'Hépatologie, APHP, Hôpital Saint-Antoine, Paris, France
| | - J Capeau
- UPMC Université Paris 06, UMR_S938, Paris, France
- Service de biochimie et hormonologie, APHP, Hôpital Tenon, Paris, France
| | - J M Pawlotsky
- APHP, Laboratoire de Virologie, Hopital Henri Mondor, Créteil, France
- INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - L Serfaty
- Service d'Hépatologie, APHP, Hôpital Saint-Antoine, Paris, France
- UPMC Université Paris 06, UMR_S938, Paris, France
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Laiguillon MC, Courties A, Houard X, Auclair M, Sautet A, Capeau J, Fève B, Berenbaum F, Sellam J. Characterization of diabetic osteoarthritic cartilage and role of high glucose environment on chondrocyte activation: toward pathophysiological delineation of diabetes mellitus-related osteoarthritis. Osteoarthritis Cartilage 2015; 23:1513-22. [PMID: 25987541 DOI: 10.1016/j.joca.2015.04.026] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Revised: 04/14/2015] [Accepted: 04/30/2015] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To examine the relationship between osteoarthritis (OA) and type 2 diabetes mellitus (DM). METHODS OA cartilage from DM and non-DM patients undergoing knee replacement were stimulated by IL-1β for 24 h and release of interleukin-6 (IL-6) and prostaglandin E2 (PGE2) was measured. Primary cultured murine chondrocytes were stimulated for 24 and 72 h with or without IL-1β (5 ng/mL) under normal-glucose (5.5 mM) or high-glucose (25 mM) conditions. The expression and release of pro-inflammatory mediators (IL-6, cyclooxygenase 2 [COX2]/PGE2) were analyzed by quantitative RT-PCR and ELISA/EIA. Glucose uptake was assessed with ((14)C)-2-deoxyglucose. Reactive oxygen species (ROS) and nitric oxide (NO) production were measured. To analyze the mechanism of IL-1β-induced inflammation, cells were pretreated or treated with inhibitors of glucose transport (cytochalasin B), the polyol pathway (epalrestat), mitochondrial oxidative stress (MitoTEMPO) or nitric oxide synthase (l-NAME). RESULTS With IL-1β stimulation, IL-6 and PGE2 release was greater in human DM than non-DM OA cartilage (2.7- and 3-fold, respectively) (P < 0.05). In vitro, with IL-1β stimulation, IL-6 and COX2 mRNA expression, IL-6 and PGE2 release, and ROS and NO production were greater under high-than normal-glucose conditions in cultured chondrocytes. IL-1β-increased IL-6 release was reduced with cytochalasin B, epalrestat, L-NAME or MitoTEMPO treatment (-45%, -62%, -38% and -40%, respectively). CONCLUSION OA cartilages from DM patients showed increased responsiveness to IL-1β-induced inflammation. Accordingly, high glucose enhanced IL-1β-induced inflammation in cultured chondrocytes via oxidative stress and the polyol pathway. High glucose and diabetes may thus participate in the increased inflammation in OA.
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Affiliation(s)
- M-C Laiguillon
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France
| | - A Courties
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France; Rheumatology Department, Assistance Publique - Hôpitaux de Paris (AP-HP), Inflammation-Immunopathology-Biotherapy Department (DHU i2B), Paris, France
| | - X Houard
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France
| | - M Auclair
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France
| | - A Sautet
- Orthopedic Surgery Department, AP-HP, Sorbonne Université UPMC Univ Paris 06, Paris, France
| | - J Capeau
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France
| | - B Fève
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France
| | - F Berenbaum
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France; Rheumatology Department, Assistance Publique - Hôpitaux de Paris (AP-HP), Inflammation-Immunopathology-Biotherapy Department (DHU i2B), Paris, France.
| | - J Sellam
- Inserm UMRS_938, Centre de Recherche St-Antoine, Sorbonne Université UPMC Univ Paris 06, Paris, France; Rheumatology Department, Assistance Publique - Hôpitaux de Paris (AP-HP), Inflammation-Immunopathology-Biotherapy Department (DHU i2B), Paris, France
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Afonso P, Auclair M, Boccara F, Capeau J, Vigouroux C, Caron-Debarle M. Prelamin a accumulation induced by hiv protease inhibitors or lamin a mutations triggers premature senescence and calcification of vascular smooth muscle cells. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Teboul Core S, Rey Jouvin C, Miquel A, Vatier C, Capeau J, Berenbaum F, Laredo JD, Vigouroux C, Sellam J. THU0569 Bone Imaging Findings in Genetic and Acquired Lipodystrophic Syndromes: A Retrospective Study of 24 Cases. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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de Kerdanet M, Caron-Debarle M, Nivot S, Gaillot T, Lascols O, Fremont B, Bonaure M, Gie S, Massart C, Capeau J. Ten-year improvement of insulin resistance and growth with recombinant human insulin-like growth factor 1 in a patient with insulin receptor mutations resulting in leprechaunism. Diabetes Metab 2014; 41:331-337. [PMID: 25465274 DOI: 10.1016/j.diabet.2014.11.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 10/27/2014] [Accepted: 11/02/2014] [Indexed: 11/19/2022]
Abstract
AIM Leprechaunism, a rare genetic disease resulting from mutations in two alleles of the insulin receptor gene, is characterized by severe insulin resistance, retarded growth and, usually, premature death. The ability of treatment with recombinant human insulin-like growth factor 1 (rhIGF1) to improve metabolic and clinical parameters in the long-term is still controversial. METHODS Mutations were looked for in the insulin receptor gene of a four-month-old female baby with leprechaunism. The patient's skin fibroblasts were analyzed for response to insulin and IGF1. At the clinical level, the very long-term effects of treatment with rhIGF1/rhIGFBP3 were evaluated by clinical and metabolic parameters. RESULTS The patient's diagnosis was based on compound heterozygous mutations in two alleles of the insulin receptor gene, thus confirming leprechaunism. Cultured fibroblasts showed a decreased number of insulin receptors and were insulin-resistant. However, IGF1 was able to stimulate IGF1 receptor signalling, suggesting possible activation of a salvage pathway. Treatment with IGF1/IGFBP3 for 8.7 years, then IGF1 for 2 years, resulted in normalization of circulating levels of IGF1 and IGFBP3. Large daily variations in glycaemia and insulinaemia persisted, but mean glycaemia decreased. Regarding growth, the patient's BMI Z score normalized and length/height score improved. Our patient presented normal neurological development and academic achievement. The treatment was free of adverse effects. CONCLUSION Our results provide evidence that rhIGF1 with and without rhIGFBP3 can prevent fatal outcomes, and improve growth and metabolic parameters, for more than 10 years in a patient with leprechaunism. Long-term rhIGF1 for severe insulin resistance syndrome should be considered.
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Affiliation(s)
- M de Kerdanet
- Pediatric Endocrinology Unit, University Hospital, Rennes, France.
| | - M Caron-Debarle
- INSERM, UMR-S 938, CDR Saint-Antoine, 75012 Paris, France; Sorbonne University UPMC Université Paris 06, UMR-S 938, 75012 Paris, France; Institute of Cardiometabolism and Nutrition (ICAN), AP-HP, GH HUEP, 75012 Paris, France
| | - S Nivot
- Pediatric Endocrinology Unit, University Hospital, Rennes, France
| | - T Gaillot
- Pediatric Endocrinology Unit, University Hospital, Rennes, France
| | - O Lascols
- INSERM, UMR-S 938, CDR Saint-Antoine, 75012 Paris, France; Sorbonne University UPMC Université Paris 06, UMR-S 938, 75012 Paris, France; Institute of Cardiometabolism and Nutrition (ICAN), AP-HP, GH HUEP, 75012 Paris, France
| | - B Fremont
- Pediatric surgery service, University Hospital, Rennes, France
| | - M Bonaure
- Pediatric Endocrinology Unit, University Hospital, Rennes, France
| | - S Gie
- Pediatric Endocrinology Unit, University Hospital, Rennes, France
| | - C Massart
- Laboratory of Molecular Genetic and Hormonology, University Hospital, Rennes, France
| | - J Capeau
- INSERM, UMR-S 938, CDR Saint-Antoine, 75012 Paris, France; Sorbonne University UPMC Université Paris 06, UMR-S 938, 75012 Paris, France; Institute of Cardiometabolism and Nutrition (ICAN), AP-HP, GH HUEP, 75012 Paris, France
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Ea H, Rat A, Sellam J, Fellahi S, Bastard JP, Bernard L, Chevalier X, Capeau J, Berenbaum F, Guillemin F, Richette P. SAT0514 Does Hyperuricemia Worsen Pain and Function in Patients with Knee or Hip OA? Results from the Khoala Cohort. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sellam J, Rat AC, Fellahi S, Bastard JP, Bernard L, Ea H, Chevalier X, Richette P, Capeau J, Guillemin F, Berenbaum F. SAT0418 The Serum Leptin/Adiponectin Ratio, A Useful Estimate of Insulin Resistance, is Associated with Clinical Symptoms in Hip Osteoarthritis: Results of the Population-Based French Khoala Cohort. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.4731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Katlama C, Assoumou L, Valantin MA, Soulie C, Duvivier C, Chablais L, Kolta S, Pialoux G, Mercie P, Simon A, Costagliola D, Peytavin G, Marcelin AG, Katlama C, Simon A, Valantin MA, Assoumou L, Costagliola D, Soulie C, Calvez V, Marcelin AG, Peytavin G, Katlama C, Simon A, Valantin MA, Assoumou L, Costagliola D, Chablais L, Peytavin G, Capeau J, Bastard JP, Kolta S, Soulie C, Calvez V, Marcelin AG, Couffin Cadiergues S, Saillard J, Rey-Coquais X, Durand F, Lemarchand C, Cuzin L, Aboulker JP, Fisher H. Maraviroc plus raltegravir failed to maintain virological suppression in HIV-infected patients with lipohypertrophy: results from the ROCnRAL ANRS 157 study. J Antimicrob Chemother 2014; 69:1648-52. [DOI: 10.1093/jac/dkt536] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Prieur X, Dollet L, Takahashi M, Nemani M, Pillot B, Le May C, Mounier C, Takigawa-Imamura H, Zelenika D, Matsuda F, Fève B, Capeau J, Lathrop M, Costet P, Cariou B, Magré J. Thiazolidinediones partially reverse the metabolic disturbances observed in Bscl2/seipin-deficient mice. Diabetologia 2013; 56:1813-25. [PMID: 23680914 DOI: 10.1007/s00125-013-2926-9] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Accepted: 04/11/2013] [Indexed: 11/26/2022]
Abstract
AIMS/HYPOTHESIS Mutations in BSCL2/seipin cause Berardinelli-Seip congenital lipodystrophy (BSCL), a rare recessive disorder characterised by near absence of adipose tissue and severe insulin resistance. We aimed to determine how seipin deficiency alters glucose and lipid homeostasis and whether thiazolidinediones can rescue the phenotype. METHODS Bscl2 (-/-) mice were generated and phenotyped. Mouse embryonic fibroblasts (MEFs) were used as a model of adipocyte differentiation. RESULTS As observed in humans, Bscl2 (-/-) mice displayed an early depletion of adipose tissue, with insulin resistance and severe hepatic steatosis. However, Bscl2 (-/-) mice exhibited an unexpected hypotriglyceridaemia due to increased clearance of triacylglycerol-rich lipoproteins (TRL) and uptake of fatty acids by the liver, with reduced basal energy expenditure. In vitro experiments with MEFs demonstrated that seipin deficiency led to impaired late adipocyte differentiation and increased basal lipolysis. Thiazolidinediones were able to rescue the adipogenesis impairment but not the alteration in lipolysis in Bscl2 (-/-) MEFs. In vivo treatment of Bscl2 (-/-) mice with pioglitazone for 9 weeks increased residual inguinal and mesenteric fat pads as well as plasma leptin and adiponectin concentrations. Pioglitazone treatment increased energy expenditure and improved insulin resistance, hypotriglyceridaemia and liver steatosis in these mice. CONCLUSIONS/INTERPRETATION Seipin plays a key role in the differentiation and storage capacity of adipocytes, and affects glucose and lipid homeostasis. The hypotriglyceridaemia observed in Bscl2 (-/-) mice is linked to increased uptake of TRL by the liver, offering a new model of liver steatosis. The demonstration that the metabolic complications associated with BSCL can be partially rescued with pioglitazone treatment opens an interesting therapeutic perspective for BSCL patients.
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Affiliation(s)
- X Prieur
- Inserm UMR_S1087, L'Institut du Thorax, IRS-UN, Nantes Cedex 1, France.
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Sellam J, Kotti S, Meyer M, Fellahi S, Bastard JP, Meyer O, Lioté F, Simon T, Capeau J, Berenbaum F. FRI0052 Serum level of total adiponectin independently predicts rapid radiographic disease progression in early rheumatoid arthritis: a cohort study. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2013-eular.1179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Sellam J, Kotti S, Fellahi S, Bastard JP, Meyer M, Lioté F, Meyer O, Simon T, Capeau J, Berenbaum F. SAT0096 Serum hepcidin level is a surrogate marker of disease activity but does not independently predict radiographic progression in early rheumatoid arthritis: Results from the ESPOIR cohort. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Human lipodystrophies represent a group of diseases characterized by altered body fat amount and/or repartition. Most forms of lipodystrophies are associated with metabolic alterations such as insulin resistance, diabetes and dyslipemia, leading to diabetic complications, increased cardiovascular risk or liver steatosis. Lipodystrophies can be classified as genetic or acquired, generalized or partial. Genetic forms such as Berardinelli-Seip syndrome or partial familial lipodystrophies are uncommon and acquired forms are much more frequent. Beside the rare Lawrence or Barraquer-Simons syndromes, the main forms of acquired lipodystrophies are those observed in HIV-infected people treated with antiretroviral therapies or in people exposed to an endogenous or an exogenous hypercortisolism. The treatment of lipodystrophies is difficult. Lifestyle modifications (e.g., specific diet, physical training) may be helpful but are usually insufficient. Associated metabolic disorders should be treated as soon as possible with insulin sensitizers, insulin and lipid lowering drugs. New therapies such as leptin have been proven to be helpful in some genetic or acquired forms of lipodystrophy.
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Affiliation(s)
- L Fardet
- Inserm UMR S938, centre de recherche Saint-Antoine, 75012 Paris, France; UMPC, université Paris 6, 75012 Paris, France; Service de médecine interne, hôpital Saint-Antoine, AP-HP, 184, rue du Faubourg-Saint-Antoine, 75012 Paris, France.
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Vatier C, Kadiri S, Muscat A, Chapron C, Capeau J, Antoine B. Visceral and subcutaneous adipose tissue from lean women respond differently to lipopolysaccharide-induced alteration of inflammation and glyceroneogenesis. Nutr Diabetes 2012. [PMID: 23208412 PMCID: PMC3542433 DOI: 10.1038/nutd.2012.29] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE Experimental endotoxaemia induces subcutaneous adipose tissue inflammation and systemic insulin resistance in lean subjects. Glyceroneogenesis, by limiting free fatty acids (FFA) release from adipocytes, controls FFA homoeostasis and systemic insulin sensitivity. The roles of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) in metabolic deregulation are intrinsically different. We compared the effect of lipopolysaccharide (LPS) on the inflammation profiles of SAT and VAT explants from lean women, as well as on glyceroneogenesis, to test whether these two fat depots have intrinsically different responses to this metabolic endotoxin. DESIGN Abdominal SAT and VAT explants from eight lean women were treated in vitro with LPS. Their inflammatory status was evaluated by cytokine gene expression and secretion; glyceroneogenesis was evaluated by cytosolic phosphoenolpyruvate carboxykinase activity and FFA vs glycerol release. RESULTS In the basal state, the cytokine status and expression of macrophage markers were lower in SAT than VAT. In the presence of 100 ng ml(-1) LPS, SAT exhibited a strong inflammatory response (increased interleukin-6 and tumor necrosis factor-α expression) and increased release of FFA due to inhibition of glyceroneogenesis, whereas VAT was only mildly affected. The effects of LPS on both tissues were blocked by the nuclear factor-κB (NF-κB) inhibitor, parthenolide. A significant effect of LPS on VAT occurred only at 1 μg ml(-1) LPS. CONCLUSION SAT explants from lean women are more sensitive to LPS-induced NF-κB activation than are VAT explants, leading to a depot-specific dysfunction of FFA storage. As SAT is the major player in FFA homoeostasis, this SAT dysfunction could be associated with visceral fat hypertrophy and systemic lipid disorders.
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Affiliation(s)
- C Vatier
- 1] INSERM U938, Paris, France [2] UPMC Université Paris 06, UMR-S938, Paris, France
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Thiebaut R, Charpentier C, Damond F, Taieb A, Antoine R, Capeau J, Chene G, Collin G, Matheron S, Descamps D, Brun-Vezinet F. Association of Soluble CD14 and Inflammatory Biomarkers With HIV-2 Disease Progression. Clin Infect Dis 2012; 55:1417-25. [DOI: 10.1093/cid/cis708] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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Fellahi S, Henderson M, Capeau J, Bastard JP. Haemoglobin Hope and glycated haemoglobin: One peak may or may not hide the other, depending on the assay. Diabetes & Metabolism 2012; 38:276-7. [DOI: 10.1016/j.diabet.2012.02.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 02/02/2012] [Indexed: 10/28/2022]
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Antuna-Puente B, Disse E, Rabasa-Lhoret R, Laville M, Capeau J, Bastard JP. How can we measure insulin sensitivity/resistance? Diabetes Metab 2011; 37:179-88. [PMID: 21435930 DOI: 10.1016/j.diabet.2011.01.002] [Citation(s) in RCA: 150] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Revised: 01/25/2011] [Accepted: 01/27/2011] [Indexed: 01/22/2023]
Abstract
Insulin resistance represents a major public health problem, as it plays a major role in the pathophysiology of type 2 diabetes mellitus; it is also associated with increased cardiovascular risk and atherogenic dyslipidaemia, and is a central component of the cluster of metabolic abnormalities that comprise the metabolic syndrome. Thus, the development of tools to quantify insulin sensitivity/resistance has been the main objective of a number of studies. Insulin resistance can be estimated with the use of several biological measurements that evaluate different aspects of this complex situation. To that end, it requires various resources, ranging from just a single fasting blood sample for simple indices, such as the HOMA or QUICKI, to a research setting in which to perform the gold-standard hyperinsulinaemic-euglycaemic clamp test. The choice of method for evaluating insulin resistance depends on the nature of the information required (classification of individual subjects, group comparisons, precise measurement of either global, muscle or liver insulin sensitivity/resistance) and on the available resources. The aim of this review is to analyze the most frequently used assay methods in an attempt to evaluate when and why these methods may be useful.
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Affiliation(s)
- B Antuna-Puente
- Unité Mixte de Recherche S938, Centre de Recherche Saint-Antoine, Institut National de la Santé et de la Recherche Médicale, Université Pierre-et-Marie-Curie Paris 6, 27, rue Chaligny, 75571 Paris cedex 12, France
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Steichen O, Bouvard E, Grateau G, Bailleul S, Capeau J, Lefèvre G. Diagnostic value of procalcitonin in acutely hospitalized elderly patients. Eur J Clin Microbiol Infect Dis 2009; 28:1471-6. [PMID: 19727867 DOI: 10.1007/s10096-009-0807-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2009] [Accepted: 08/13/2009] [Indexed: 11/25/2022]
Abstract
The aim of this study was to evaluate procalcitonin as an adjunct to diagnose bacterial infections in older patients. One hundred seventy-two patients admitted to an acute-care geriatric unit during a 6-month period were prospectively included, 39 of them with an invasive bacterial infection. The best cut-off value to rule in a bacterial infection was 0.51 microg/l with sensitivity 64% and specificity 94%. The best cut-off value to rule out a bacterial infection was 0.08 microg/l with sensitivity 97% and specificity 20%. Procalcitonin was inconclusive (between 0.08 and 0.51 microg/l) for 112 admissions. Procalcitonin over 0.51 microg/l was useless 22 times out of 33 (infection already ruled in on clinical grounds) and misleading in eight of the 11 remaining cases (no infection). Procalcitonin below 0.08 microg/l was useless 23 times out of 27 (infection already ruled out on clinical grounds) and misleading in one of the four remaining cases (infection). Despite a good overall diagnostic accuracy, the clinical usefulness of PCT to diagnose invasive bacterial infections in elderly patients hospitalized in an acute geriatric ward appears to be very limited.
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Affiliation(s)
- O Steichen
- Unité de gériatrie, Service de médecine interne, AP-HP, Hôpital Tenon, 4 rue de la Chine, 75020 Paris, France.
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Desbois-Mouthon C, Magré J, Sert-Langeron C, Blivet-Van Eggelpoël MJ, Besmond C, Capeau J, Caron M. P-105: Altered insulin receptor functions due to different mutations in the insulin receptor gene in four patients with leprechaunism. Exp Clin Endocrinol Diabetes 2009. [DOI: 10.1055/s-0029-1211649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Magré J, Vigouroux C, Desbois-Mouthon C, Hilbert P, Fauré S, Gedde Dahl T, Weissenbach J, Capeau J, Malderghem LV. P-113: Search for the gene(s) responsible for lipoatrophic diabetes. Exp Clin Endocrinol Diabetes 2009. [DOI: 10.1055/s-0029-1211657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Slama L, Le Camus C, Serfaty L, Pialoux G, Capeau J, Gharakhanian S. Metabolic disorders and chronic viral disease: The case of HIV and HCV. Diabetes & Metabolism 2009; 35:1-11. [DOI: 10.1016/j.diabet.2008.08.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2008] [Revised: 08/11/2008] [Accepted: 08/18/2008] [Indexed: 12/12/2022]
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Bouvard E, Steichen O, Grateau G, Capeau J, Lefevre G. Valeur diagnostique de la procalcitonine en gériatrie aiguë. Rev Med Interne 2008. [DOI: 10.1016/j.revmed.2008.10.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Vantyghem MC, Vincent-Desplanques D, Defrance-Faivre F, Capeau J, Fermon C, Valat AS, Lascols O, Hecart AC, Pigny P, Delemer B, Vigouroux C, Wemeau JL. Fertility and obstetrical complications in women with LMNA-related familial partial lipodystrophy. J Clin Endocrinol Metab 2008; 93:2223-9. [PMID: 18364375 DOI: 10.1210/jc.2007-2521] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
OBJECTIVE Familial partial lipodystrophy due to LMNA (lamin A/C) mutations is a rare disorder characterized by a selective loss of adipose tissue and insulin resistance. Dyslipidemia and severe diabetes often occur during its evolution. Only isolated and contradictory case reports have been published on the obstetrical prognosis in lipodystrophy. The aim of our study was to compare the fertility and occurrence of obstetrical complications of women with familial partial lipodystrophy due to LMNA (lamin A/C) mutations with those of nonaffected relatives, women from the general population, and women with polycystic ovary syndrome (PCOS). MATERIAL AND METHODS Data were obtained from clinical follow-up of seven families with patients exhibiting mutations in LMNA (five R482W, one R482Q, one R439C) (14 affected among 48 women). RESULTS The mean number of live children per woman was 1.7 in affected patients vs. 2.8 in nonaffected relatives. Fifty-four percent of LMNA-mutated women exhibited a clinical phenotype of PCOS, 28% suffered from infertility, 50% experienced at least one miscarriage, 36% developed gestational diabetes, and 14% experienced eclampsia and fetal death. Mean blood leptin level was significantly lower in LMNA-mutated patients than in nonaffected relatives (5.0 +/- 3.8 ng/ml vs 14.3 +/- 3.6; P < 0.001) despite similar body mass index (21.0 +/- 4.2 vs 22.4 +/- 2.2; P = 0.49). CONCLUSION In these LMNA-linked lipodystrophic patients, the prevalence of PCOS, infertility, and gestational diabetes was higher than in the general population. Moreover, the prevalence of gestational diabetes and miscarriages was higher in lipodystrophic LMNA-mutated women than previously reported in PCOS women with similar body mass index. Women with lipodystrophies due to LMNA mutations are at high risk of infertility, gestational diabetes, and obstetrical complications and require reinforced gynecological and obstetrical care.
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Affiliation(s)
- M C Vantyghem
- Service d'Endocrinologie-Métabolisme Clinique Linquette, Centre Hospitalier Régional et Universitaire de Lille, 6 Rue du Pr Laguesse, Lille, France.
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Collin F, Le Moing V, Capeau J, Bouteloup V, Salmon-Ceron D, Andreelli F, Cassuto J. COL2-01 Thème : Infections à VIH (2) – Évolution des lipodystrophies et des anomalies glucido-lipidiques au-delà de 7 ans au sein de la cohorte ANRS CO8 APROCO-COPILOTE. Med Mal Infect 2008. [DOI: 10.1016/s0399-077x(08)73016-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Caron M, Auclair M, Donadille B, Béréziat V, Guerci B, Laville M, Narbonne H, Bodemer C, Lascols O, Capeau J, Vigouroux C. 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. Cell Death Differ 2007; 14:1759-67. [PMID: 17612587 DOI: 10.1038/sj.cdd.4402197] [Citation(s) in RCA: 146] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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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Affiliation(s)
- M Caron
- INSERM U680, Université Pierre et Marie Curie-Paris 6, Faculté de Médecine, Site Saint-Antoine, 27 rue Chaligny, 75571 Paris Cedex 12, France.
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Graïne H, Toumi K, Roullier V, Capeau J, Lefèvre G. [Interference of ethylene glycol on lactate assays]. Ann Biol Clin (Paris) 2007; 65:421-4. [PMID: 17627925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2007] [Accepted: 04/13/2007] [Indexed: 05/16/2023]
Abstract
Ethylene glycol is broken down to three main organic acids: glycolic acid, glyoxylic acid and oxalic acid which cause severe metabolic acidosis. Effect of these three acids on lactate assays was evaluated in five blood gas analysers and two clinical chemistry analysers. For all systems, no influence of oxalic acid on lactate results could be demonstrated. No interference of glycolic acid could be observed on lactate assay performed with Rapid Lab 1265 (R: 104,9 +/- 12,1%), Vitros 950 (R: 105,7 +/- 5,3 %) and Architect ci8200 (R: 104,9 +/- 4,7%), but on the contrary, CCX 4, OMNI S, ABL 725 and 825 demonstrated a concentration-dependent interference. No interference of glyoxylic acid could be observed with Vitros 950, but a positive interference could be observed with ABL 725 and 825, OMNI S, CCX4 and Architect ci8200 A linear relationship between apparent lactate concentration found with ABL 725 and 825, OMNI S, CCX 4, and glyoxylic acid could be observed (0,94 < r < 0,99), a weaker interference being observed with Rapid Lab 1265 and Architect ci 8200. Our results demonstrated that in case of ethylene glycol poisoning, cautious interpretation of lactate assay should be done, since wrong results of lactacidemia could lead to misdiagnostic and delay patient treatment.
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Affiliation(s)
- H Graïne
- Service de biochimie et hormonologie, Hôpital Tenon, 4, rue de la Chine, 75970 Paris Cedex 20
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Capeau J, Magré J, Lascols O, Caron M, Béréziat V, Vigouroux C. [Primary lipodystrophies]. Ann Endocrinol (Paris) 2007; 68:10-20. [PMID: 17320032 DOI: 10.1016/j.ando.2006.12.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2006] [Revised: 12/15/2006] [Accepted: 12/15/2006] [Indexed: 11/30/2022]
Abstract
Primary lipodystrophies represent a heterogeneous group of very rare diseases with a prevalence of less than 1 case for 100.000, inherited or acquired, caracterized by a loss of body fat either generalized or localized (lipoatrophy). In some forms, lipoatrophy is associated with a selective hypertrophy of other fat depots. Clinical signs of insulin resistance are often present: acanthosis nigricans, signs of hyperandrogenism. All lipodystrophies are associated with dysmetabolic alterations with insulin resistance, altered glucose tolerance or diabetes and hypertriglyceridemia leading to a risk of acute pancreatitis. Chronic complications are those resulting from diabetes involving the retina, kidney and nerves, cardiovascular complications and steatotic liver lesions that could result in cirrhosis. Genetic forms of generalized lipodystrophy (or Berardinelli-Seip syndrome) result, in most cases, from recessive mutations in one of two genes: either BSCL2 coding seipin or BSCL1 coding AGPAT2, an acyl-transferase involved in triglyceride synthesis. Acquired generalized lipodystrophy (Lawrence syndrome) is of unknown origin but is sometimes associated with signs of autoimmunity. Partial lipodystrophies can be familial with dominant transmission. Heterozygous mutations have been identified in the LMNA gene encoding nuclear lamin A/C belonging to the nuclear lamina, or in PPARG encoding the adipogenic transcription factor PPARgamma. Some less typical lipodystrophies, associated with signs of premature aging, have been linked to mutations in LMNA or in the ZMPSTE24 gene encoding the protease responsible for the maturation of prelamin A into lamin A. Acquired partial lipodystrophy (Barraquer-Simons syndrome) is characterized by cephalothoracic fat loss. Its aetiology is unknown but mutations in LMNB2, encoding the lamina protein lamin B2, could represent susceptibility factors. Highly active antiretroviral treatments for HIV infection are currently the most frequent cause of acquired secondary lipodystrophic syndromes. The genetic diagnosis is performed in specialized laboratories and, in the most severe forms, antenatal diagnosis could be proposed. Treatment of diabetes, dyslipidemia and complications involves the classical intervention strategies. Insulino-sensitizing drugs are useful. Therapeutic trials with recombinant human leptin in patients with very low leptin levels reported good results with respect to the metabolic and liver alterations. The prognosis is linked to the precocity and severity of the diabetic, cardiovascular and liver complications.
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Affiliation(s)
- J Capeau
- Inserm, U680, 75012 Paris, France.
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Lagathu C, Yvan-Charvet L, Bastard JP, Maachi M, Quignard-Boulangé A, Capeau J, Caron M. Long-term treatment with interleukin-1beta induces insulin resistance in murine and human adipocytes. Diabetologia 2006; 49:2162-73. [PMID: 16865359 DOI: 10.1007/s00125-006-0335-z] [Citation(s) in RCA: 221] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2006] [Accepted: 05/04/2006] [Indexed: 12/22/2022]
Abstract
AIMS/HYPOTHESIS Adipose tissue inflammation has recently been implicated in the pathogenesis of insulin resistance and is probably linked to high local levels of cytokines. IL1B, a proinflammatory cytokine, may participate in this alteration. MATERIALS AND METHODS We evaluated the chronic effect (1-10 days) of IL1B (0.1-20 ng/ml) on insulin signalling in differentiating 3T3-F442A and differentiated 3T3-L1 murine adipocytes and in human adipocytes. We also assessed expression of the gene encoding IL1B in adipose tissue of wild-type and insulin-resistant mice (diet-induced and genetically obese ob/ob mice). RESULTS IL1B inhibited insulin-induced phosphorylation of the insulin receptor beta subunit, insulin receptor substrate 1, Akt/protein kinase B and extracellular regulated kinase 1/2 in murine and human adipocytes. Accordingly, IL1B suppressed insulin-induced glucose transport and lipogenesis. Long-term treatment of adipose cells with IL1B decreased cellular lipid content. This could result from enhanced lipolysis and/or decreased expression of genes involved in lipid metabolism (acetyl-CoA carboxylase, fatty acid synthase). Down-regulation of peroxisome proliferating-activated receptor gamma and CCAAT/enhancer-binding protein alpha in response to IL1B may have contributed to the altered phenotype of IL1B-treated adipocytes. Moreover, IL1B altered adipocyte differentiation status in long-term cultures. IL1B also decreased the production of adiponectin, an adipocyte-specific protein that plays a positive role in insulin sensitivity. Expression of the gene encoding IL1B was increased in epididymal adipose tissue of obese insulin-resistant mice. CONCLUSIONS/INTERPRETATION IL1B is upregulated in adipose tissue of obese and insulin-resistant mouse models and may play an important role in the development of insulin resistance in murine and human adipose cells.
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Affiliation(s)
- C Lagathu
- INSERM, U680, Université Pierre et Marie Curie (UPMC-Paris 6), Faculty of Medicine, 27 rue Chaligny, 75012, Paris, France
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Kim MJ, Maachi M, Debard C, Loizon E, Clément K, Bruckert E, Hainque B, Capeau J, Vidal H, Bastard JP. Increased adiponectin receptor-1 expression in adipose tissue of impaired glucose-tolerant obese subjects during weight loss. Eur J Endocrinol 2006; 155:161-5. [PMID: 16793963 DOI: 10.1530/eje.1.02194] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To investigate the mRNA expression of adiponectin, AdipoR1 and AdipoR2, the two recently cloned adiponectin receptors and peroxisome proliferator activated receptor (PPAR)gamma2 in adipose tissue of obese individuals before and during a very low calorie diet (VLCD) inducing weight loss. METHODS Twenty-three non-diabetic obese subjects with normal (NGT, n = 11) or impaired glucose tolerance (IGT, n = 12) (age, 47 +/- 3 years; body mass index, 39.3 +/- 1.3 kg/m2) were studied before and after a 3-week 3.9 MJ diet daily without exercise. mRNA levels of nine IGT and six NGT subjects were measured by real-time PCR in s.c. abdominal adipose tissue. RESULTS Metabolic parameters and insulin sensitivity were improved by VLCD in the IGT group, but minimally affected in the NGT group. VLCD increased expression of AdipoR1 in the IGT (P = 0.02), but not in the NGT group. Adiponectin, AdipoR2 and PPARgamma2 mRNA levels did not change during VLCD in any group. In the IGT, but not in the NGT group, AdipoR1 and AdipoR2 expressions were positively related to that of PPARgamma2 and, after VLCD, AdipoR1 and AdipoR2 expressions were positively related to each other and to that of adiponectin. CONCLUSION In the NGT group, the 3-week VLCD inducing weight loss did not modify metabolic parameters, insulin sensitivity and the expression of the adiponectin system in adipose tissue. By contrast, in the IGT group, AdipoR1 expression increased and we found a coordinate regulation of the expression of adiponectin and its receptors. These modifications could participate, through adiponectin action on adipocytes, to the improved metabolic parameters observed in IGT subjects.
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Affiliation(s)
- M J Kim
- INSERM U-680, Faculté de Médecine, Université Pierre et Marie Curie, 75012 Paris, France
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Capeau J, Magré J, Lascols O, Caron M, Béréziat V, Vigouroux C, Bastard JP. Diseases of adipose tissue: genetic and acquired lipodystrophies. Biochem Soc Trans 2006; 33:1073-7. [PMID: 16246048 DOI: 10.1042/bst0331073] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Human lipodystrophies represent a group of diseases characterized by altered body fat amount and/or repartition and major metabolic alterations with insulin resistance leading to diabetic complications and increased cardiovascular and hepatic risk. Genetic forms of lipodystrophies are rare. Congenital generalized lipodystrophy or Berardinelli-Seip syndrome, autosomal recessive, is characterized by a complete early lipoatrophy and severe insulin resistance and results, in most cases, from mutations either in the seipin gene of unknown function or AGPAT2 encoding an enzyme involved in triacylglycerol synthesis. The Dunnigan syndrome [FPLD2 (familial partial lipodystrophy of the Dunnigan type)] is due to mutations in LMNA encoding the lamin A/C, belonging to the complex group of laminopathies that could comprise muscular and cardiac dystrophies, neuropathies and syndromes of premature aging. Some FPLDs are linked to loss-of-function mutations in the PPAR-gamma gene (peroxisome-proliferator-activated receptor gamma; FPLD3) with severe metabolic alterations but a less severe lipodystrophy compared with FPLD2. The metabolic syndrome, acquired, represents the most common form of lipodystrophy. HIV-infected patients often present lipodystrophies, mainly related to side effects of antiretroviral drugs together with insulin resistance and metabolic alterations. Such syndromes help to understand the mechanisms involved in insulin resistance resulting from altered fat repartition and could benefit from insulin-sensitizing effects of lifestyle modifications or of specific medications.
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Affiliation(s)
- J Capeau
- INSERM U680, Saint-Antoine Faculty of Medicine, Université Pierre et Marie Curie (UPMC), Paris, France.
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Donadille B, Lascols O, Capeau J, Vigouroux C. Etiological investigations in apparent type 2 diabetes: when to search for lamin A/C mutations? Diabetes Metab 2006; 31:527-32. [PMID: 16357800 DOI: 10.1016/s1262-3636(07)70227-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Prevalence of diabetes is increasing worldwide in epidemic proportions. Its appropriate clinical management requires a careful etiological diagnosis. Laminopathies recently emerged as clinically heterogeneous genetic disorders due to mutations in lamins or lamin-associated proteins, which are components of the nuclear envelope. Laminopathies regroup at least eight distinct diseases, belonging to the groups of skeletal and/or cardiac muscular dystrophies, axonal neuropathies, premature ageing syndromes and familial lipodystrophies, all resulting from alterations in LMNA, encoding type A-lamins. Pathophysiological mechanisms explaining how mutations in an unique gene could lead to such various phenotypes are still unknown, but probably involve alterations in cellular mechanical stress responses, in gene expression, and/or in post-translational maturation of lamin A. Familial Partial Lipodystrophy of the Dunnigan type (FPLD2), with specific features of pseudo-cushingoid lipodystrophy, marked insulin resistance and muscular hypertrophy, and a relatively homogeneous genotype, was thought, until recently, to be the only laminopathy causing diabetes. However, recent studies have revealed that insulin resistance and diabetes could be key features of attenuated or more complex phenotypes of laminopathy. In the light of these recent findings, this review will describe the clinical, morphological and biological features that should lead clinicians to consider the diagnosis of laminopathy in a diabetic patient. The recognition of such an etiology for diabetes is important not only for its appropriate medical treatment, but also because specific investigations are required to detect possible asymptomatic life-threatening complications. In addition, the molecular screening of family members allows an earlier efficient clinical management of affected relatives.
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Affiliation(s)
- B Donadille
- INSERM U680, Pierre and Marie Curie Faculty of Medicine, site Saint-Antoine, 27 rue de Chaligny, 75571 Paris Cedex 12, France
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Vantyghem MC, Pigny P, Maurage CA, Rouaix-Emery N, Stojkovic T, Cuisset JM, Millaire A, Lascols O, Vermersch P, Wemeau JL, Capeau J, Vigouroux C. Patients with familial partial lipodystrophy of the Dunnigan type due to a LMNA R482W mutation show muscular and cardiac abnormalities. J Clin Endocrinol Metab 2004; 89:5337-46. [PMID: 15531479 DOI: 10.1210/jc.2003-031658] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Diseases due to mutations in the lamin A/C gene (LMNA) are highly heterogeneous, including neuromuscular and cardiac dystrophies, lipodystrophies, and premature ageing syndromes. In this study we characterized the neuromuscular and cardiac phenotypes of patients bearing the heterozygous LMNA R482W mutation, which is the most frequent genotype associated with the familial partial lipodystrophy of the Dunnigan type (FPLD). Fourteen patients from two unrelated families, including 10 affected subjects, were studied. The two probands had been referred for lipoatrophy and/or diabetes. Lipodystrophy, exclusively observed in LMNA-mutated patients, was of variable severity and limited to postpubertal subjects. Lipodystrophy and metabolic disturbances were more severe in women, even if an enlarged neck was a constant finding. The severity of hypertriglyceridemia and hirsutism in females was related to that of insulin resistance. Clinical muscular alterations were only present in LMNA-mutated patients. Clinical and histological examination showed an invalidating, progressive limb-girdle muscular dystrophy in a 42-yr-old woman that had been present since childhood, associated with a typical postpubertal FPLD phenotype. Six of eight adults presented the association of calf hypertrophy, perihumeral muscular atrophy, and a rolling gait due to proximal lower limb weakness. Muscular histology was compatible with muscular dystrophy in one of them and/or showed a nonspecific excess of lipid droplets (in three cases). Immunostaining of lamin A/C was normal in the six muscular biopsies. Surprisingly, calpain 3 expression was undetectable in the patient with the severe limb-girdle muscular dystrophy, although the gene did not reveal any molecular alterations. At the cardiac level, cardiac septal hypertrophy and atherosclerosis were frequent in FPLD patients. In addition, a 24-yr-old FPLD patient had a symptomatic second degree atrioventricular block. In conclusion, we showed that most lipodystrophic patients affected by the FPLD-linked LMNA R482W mutation show muscular and cardiac abnormalities. The occurrence and severity of the myopathic and lipoatrophic phenotypes varied and were not related. The muscular phenotype was evocative of limb girdle muscular dystrophy. Cardiac hypertrophy and advanced atherosclerosis were frequent. FPLD patients should receive careful neuromuscular and cardiac examination whatever the underlying LMNA mutation.
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Affiliation(s)
- M C Vantyghem
- Department of Endocrinology and Metabolism, Lille University Hospital, 6 rue du Prof. Laguesse, 59037 Lille Cedex, France.
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Maachi M, Piéroni L, Bruckert E, Jardel C, Fellahi S, Hainque B, Capeau J, Bastard JP. Systemic low-grade inflammation is related to both circulating and adipose tissue TNFalpha, leptin and IL-6 levels in obese women. Int J Obes (Lond) 2004; 28:993-7. [PMID: 15211360 DOI: 10.1038/sj.ijo.0802718] [Citation(s) in RCA: 266] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
OBJECTIVE We assessed the relationships between four circulating acute phase proteins and the circulating and adipose tissue levels of three adipocytokines. SUBJECTS In all, 15 nondiabetic obese women with a body mass index (BMI) above 32 kg/m(2) were investigated. METHOD Circulating concentrations of C-reactive protein (CRP), alpha 1 acid glycoprotein (AAG), fibrinogen, alpha 1 antitrypsin and both circulating and adipose tissue levels of interleukin (IL)-6, tumor necrosis factor (TNF)alpha and leptin were measured by either nephelometry or enzyme-linked immunosorbent assay. RESULTS We found a strong positive correlation between both circulating and adipose tissue levels of IL-6, TNFalpha and leptin and serum CRP levels. All these adipose tissue adipocytokines were also positively correlated with serum AAG levels. These correlations disappeared when adjusted for fat mass, suggesting that the relationship observed was dependent on fat amount. CONCLUSION Our results indicate a strong relationship between adipocytokines and inflammatory markers, and suggest that cytokines secreted by adipose tissue in obese subjects could play a role in increased inflammatory proteins secretion by the liver.
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Affiliation(s)
- M Maachi
- Service de Biochimie et Hormonologie, Hôpital Tenon, AP-HP, France
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41
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Roussillon C, Chêne G, Rozenbaum W, Caulin C, Capeau J, Lang JM, Lassalle R, Bard JM, Leport C, Raffi F. D-12 Facteurs de risque cardiovasculaire (CV) chez les patients infectés par le VIH et traités par inhibiteur de la protease (IP). Med Mal Infect 2004. [DOI: 10.1016/s0399-077x(04)90170-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Elefteriou F, Takeda S, Ebihara K, Magre J, Patano N, Kim CA, Ogawa Y, Liu X, Ware SM, Craigen WJ, Robert JJ, Vinson C, Nakao K, Capeau J, Karsenty G. Serum leptin level is a regulator of bone mass. Proc Natl Acad Sci U S A 2004; 101:3258-63. [PMID: 14978271 PMCID: PMC365777 DOI: 10.1073/pnas.0308744101] [Citation(s) in RCA: 235] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Leptin is a powerful inhibitor of bone formation in vivo. This antiosteogenic function involves leptin binding to its receptors on ventromedial hypothalamic neurons, the autonomous nervous system and beta-adrenergic receptors on osteoblasts. However, the mechanisms whereby leptin controls the function of ventromedial hypothalamic antiosteogenic neurons remain unclear. In this study, we compared the ability of leptin to regulate body weight and bone mass and show that leptin antiosteogenic and anorexigenic functions are affected by similar amounts of leptin. Using a knock-in of LacZ in the leptin locus, we failed to detect any leptin synthesis in the central nervous system. However, increasing serum leptin level, even dramatically, reduced bone mass. Conversely, reducing serum-free leptin level by overexpressing a soluble receptor for leptin increased bone mass. Congruent with these results, the high bone mass of lipodystrophic mice could be corrected by restoring serum leptin level, suggesting that leptin is an adipocyte product both necessary and sufficient to control bone mass. Consistent with the high bone mass phenotype of lipodystrophic mice, we observed an advanced bone age, an indirect reflection of premature bone formation, in lipodystrophic patients. Taken together, these results indicate that adipocyte-derived circulating leptin is a determinant of bone formation and suggests that leptin antiosteogenic function is conserved in vertebrates.
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Affiliation(s)
- F Elefteriou
- Department of Molecular and Human Genetics, Bone Disease Program of Texas, Baylor College of Medicine, Houston, TX 77030, USA
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Bastard JP, Lagathu C, Maachi M, Kim M, Vigouroux C, Caron M, Vidal H, Capeau J. [Adipose tissue cytokines and insulin resistance]. Journ Annu Diabetol Hotel Dieu 2004:29-37. [PMID: 15259303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Affiliation(s)
- J P Bastard
- INSERM U402, Faculté de Médecine Saint-Antoine et Service de Biochimie et Hormonologie, Hôpital Tenon, Université Pierre et Marie Curie, Paris
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Capeau J, Magré J, Vigouroux C, Caron M, Maachi M, Dubosclard E, Lascols O, Bastard JP. [Diabetes and genetic and acquired lipodystrophy syndrome]. Journ Annu Diabetol Hotel Dieu 2003:99-109. [PMID: 12868305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Affiliation(s)
- J Capeau
- Service de Biochimie et Hormonologie, Hôpital Tenon, Unité INSERM 402, Faculté de Médecine Saint-Antoine, Université Pierre et Marie Curie, Paris, France
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Caron M, Bastard JP, Auclair M, Vigouroux C, Capeau J. [Antiretroviral treatment for HIV and adipose tissue]. Journ Annu Diabetol Hotel Dieu 2003:147-58. [PMID: 12868307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Affiliation(s)
- M Caron
- Inserm U402, Faculté de Médecine Saint-Antoine, Université Pierre et Marie Curie, Paris, France
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Tse C, Capeau J. [Real time PCR methodology for quantification of nucleic acids]. Ann Biol Clin (Paris) 2003; 61:279-93. [PMID: 12805005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
The polymerase chain reaction (PCR) has become an essential tool for molecular biologists and its introduction into nucleic acids detection systems has revolutionized the quantitative analysis of DNA and RNA. The technique has rapidly evolved over the last few years and the growing interest in quantitative applications of the PCR has favoured the development of real-time quantitative PCR. In this paper, we review, after presentation of the theorical aspects of PCR, the basic principles of real-time PCR with the introduction of the concept of threshold cycle. More precisely, we describe the novel assay formats that greatly simplify the protocols used for the detection of specific nucleic acids. We focus on the actual four technologies that enable sequence detection in a closed tube and that are SYBR Green I, TaqMan probes, Hybridization probes and Molecular Beacon probes. We then discuss the different quantification strategies in real time PCR and compare the competiting instruments on the market. The most important real-time PCR applications in clinical biology are also described.
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Affiliation(s)
- C Tse
- Hôpital Tenon, Laboratoire de biochimie et d'hormonologie, 4, rue de la Chine, 75020 Paris
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Kaisaki PJ, Sebag-Montefiore LM, Brown JH, Magre J, Lathrop M, Capeau J, Gauguier D. Localization, cDNA sequence and genomic organization of the rat seipin gene (Bscl2) and sequence analysis in inbred rat models of Type 2 diabetes mellitus. Cytogenet Genome Res 2003; 98:71-4. [PMID: 12584444 DOI: 10.1159/000068538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Mutations in the gene encoding seipin cause Berardinelli-Seip congenital lipodystrophy 2, with symptoms including near-absence of adipose tissue and altered glucose tolerance. Radiation hybrid analysis localized the seipin gene (Bscl2) in rat to a major quantitative trait locus in rat chromosome 1 linked to glucose intolerance in the Goto-Kakizaki (GK) rat model of Type 2 diabetes. We determined the genomic organization of Bscl2 and screened coding exons and flanking intron sequences for mutations in GK, Wistar and Brown Norway rats, as well as in the Otsuka Long-Evans Tokushima Fatty (OLETF) diabetic rat. Two silent single nucleotide polymorphisms that were identified also were found in non-diabetic rat strains. We conclude that mutations in the gene for seipin are unlikely to contribute to diabetes in GK and OLETF rats.
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Affiliation(s)
- P J Kaisaki
- The Wellcome Trust Centre for Human Genetics, University of Oxford, Headington, United Kingdom.
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Caux F, Dubosclard E, Lascols O, Buendia B, Chazouillères O, Cohen A, Courvalin JC, Laroche L, Capeau J, Vigouroux C, Christin-Maitre S. A new clinical condition linked to a novel mutation in lamins A and C with generalized lipoatrophy, insulin-resistant diabetes, disseminated leukomelanodermic papules, liver steatosis, and cardiomyopathy. J Clin Endocrinol Metab 2003; 88:1006-13. [PMID: 12629077 DOI: 10.1210/jc.2002-021506] [Citation(s) in RCA: 154] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Abstract
A-Type lamins, arising from the LMNA gene, are intermediate filaments proteins that belong to the lamina, a ubiquitous nuclear network. Naturally occurring mutations in these proteins have been shown to be responsible for several distinct diseases that display skeletal and/or cardiac muscle or peripheral nerve involvement. These include familial partial lipodystrophy of the Dunnigan type and the mandibuloacral dysplasia syndrome. The pathophysiology of this group of diseases, often referred to as laminopathies, remains elusive. We report a new condition in a 30-yr-old man exhibiting a previously undescribed heterozygous R133L LMNA mutation. His phenotype associated generalized acquired lipoatrophy with insulin-resistant diabetes, hypertriglyceridemia, hepatic steatosis, hypertrophic cardiomyopathy with valvular involvement, and disseminated whitish papules. Immunofluorescence microscopic analysis of the patient's cultured skin fibroblasts revealed nuclear disorganization and abnormal distribution of A-type lamins, similar to that observed in patients harboring other LMNA mutations. This observation broadens the clinical spectrum of laminopathies, pointing out the clinical variability of lipodystrophy and the unreported possibility of hypertrophic cardiomyopathy and skin involvement. It emphasizes the fact that the diagnosis of genetic alterations in A-type lamins requires careful and complete clinical and morphological investigations in patients regardless of the presenting signs.
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Affiliation(s)
- F Caux
- Service de Dermatologie, Hôpital Avicenne, 93000 Bobigny, France
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Moritz S, Colin M, Keller M, Klonjkowski B, Capeau J, Coutelle C, Chroboczek J, Brahimi-Horn MC. Gene transfer by adenovirus-mimetic peptides in the presence of a cationic lipid and/or adenovirus. Analysis of the contribution of the viral and nonviral components. Arch Virol 2003; 148:1-18. [PMID: 12536292 DOI: 10.1007/s00705-002-0911-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Peptide and cationic lipid-based gene transfer vectors have shown promise for gene therapy but are still less efficient than viral gene transfer vectors. We have examined the mechanism of gene transfer of different adenovirus-mimetic peptides in the presence and absence of a cationic lipid, lipofectamine and/or adenovirus with the aim of improving the design of nonviral vectors for efficient gene transfer. Three polylysine-adenovirus-mimetic peptides were synthesised and examined for their efficacy for gene transfer. Transfection levels in four cell lines: adenovirus permissive human tracheal epithelial (56FHTE8o(-)), human lung carcinoma (A549), human colon carcinoma (Caco-2) cells, and adenovirus low-permissive Chinese hamster ovary (CHO) cells, were examined. The polylysine-adenovirus-mimetic peptides increased the level of transfection of a reporter transgene in all cell lines. Transfection was substantially increased when an adenovirus was added to cells after pre-incubation with the vector complexes. Formulation of the peptide vector complexes with lipofectamine increased their transfection efficacy and the subsequent addition of an adenovirus increased transfection levels even further but only in permissive cells. Pre-incubation of cells with lipofectamine-peptide vector complexes increased cell binding of the adenovirus but uptake was only increased in intermediate- or non-permissive cells. The addition of lipofectamine increased transgene expression of a recombinant adenovirus in non-permissive cells but not in permissive cells. Enhancement with an adenovirus of peptide vector gene transfer is probably due to more efficient endosome escape while enhancement of gene transfer by peptide vectors complexed to lipofectamine is due to an increase in cellular binding and/or internalisation of the adenovirus.
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Affiliation(s)
- S Moritz
- INSERM U402, Faculté de Médecine Saint-Antoine, Paris, France
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