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Fysekidis M, Cosson E, Sabouret P, Takbou K, Sutton A, Charnaux N, Banu I, Testa A, Biondi-Zoccai G, Vicaut E, Valensi P. Insulin analogs as an add-on to metformin after failure to oral treatment in type 2 diabetic patients increase diastole duration. The INSUlin Regimens and VASCular Functions (INSUVASC) study. Minerva Cardiol Angiol 2023; 71:659-672. [PMID: 37405711 DOI: 10.23736/s2724-5683.23.06139-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
BACKGROUND Fast acting insulin analogues are known to improve arterial stiffness. The combination of metformin with insulin represents a widely used therapeutic strategy in diabetes. We hypothesized that insulin treatment in patients with type 2 diabetes (T2D) with long-acting, fast-acting or basal bolus insulin as an add-on to metformin would provide additional improvement of arterial stiffness. METHODS The INSUlin Regimens and VASCular Functions (INSUVASC) study is a pilot, randomized, open label three-arms study that included 42 patients with type 2 diabetes (T2D) in primary prevention, after a failure to oral antidiabetic agents. Arterial stiffness measurements were performed at fasting and after a standardized breakfast. During the first visit (V1) pre-randomization, participants took only metformin to perform the tests. The same tests were repeated after 4 weeks of insulin treatment during the second visit (V2). RESULTS Data were available for final analysis in 40 patients, with a mean age of 53.6±9.7 years and a mean duration of diabetes of 10.6±5.6 years. Twenty-one were females (52.5%), hypertension and dyslipidemia were present in 18 (45%) and 17 patients (42.5%), respectively. After insulin treatment, the metabolic control was associated to a decrease in oxidative stress and improvement of endothelial functions, with a post prandial diastole duration increased and a decrease of the peripheral arterial stiffness, with a better post prandial pulse pressure ratio and ejection duration after insulin. In hypertensive patients, insulin treatment provided positive effects by decreasing the pulse wave velocity and improving reflection time. CONCLUSIONS A short time treatment by insulin in addition to metformin improved myocardial perfusion. Moreover, insulin treatment in hypertensive patients provides a better hemodynamic profile in large arteries.
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Affiliation(s)
- Marinos Fysekidis
- Department of Endocrinology, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Paris13 University, Sorbonne Paris Cité, Paris, France -
- Department of Diabetology-Nutrition, Research Center for Human Nutrition of Ile-de-France, Integrated Obesity Center of North Ile-de-France (CINFO), Bondy, France -
- Center of Research in Epidemiology and Statistics (UMR U1153), National Institute of Health and Medical Research (Inserm), Université Paris13, Sorbonne Paris Cité, Bobigny, France -
| | - Emmanuel Cosson
- Department of Endocrinology, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Paris13 University, Sorbonne Paris Cité, Paris, France
- Department of Diabetology-Nutrition, Research Center for Human Nutrition of Ile-de-France, Integrated Obesity Center of North Ile-de-France (CINFO), Bondy, France
- Center of Research in Epidemiology and Statistics (UMR U1153), National Institute of Health and Medical Research (Inserm), Université Paris13, Sorbonne Paris Cité, Bobigny, France
| | - Pierre Sabouret
- Heart Institute, Pitié-Salpétrière Hospital, Sorbonne University, Paris, France
- National College of French Cardiologists, Paris, France
| | - Karim Takbou
- Department of Endocrinology, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Paris13 University, Sorbonne Paris Cité, Paris, France
| | - Angela Sutton
- Biochemistry Department, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Bondy, France
| | - Nathalie Charnaux
- Biochemistry Department, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Bondy, France
| | - Isabela Banu
- Department of Endocrinology, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Paris13 University, Sorbonne Paris Cité, Paris, France
| | - Alberto Testa
- Sapienza School for Advanced Studies, Sapienza University, Rome, Italy
| | - Giuseppe Biondi-Zoccai
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University, Latina, Italy
- Mediterranea Cardiocentro, Naples, Italy
| | - Eric Vicaut
- Clinical Research Unit, Lariboisière-St Louis, Fernand Widal Hospitals, Assistence Publique - Hôpitaux de Paris, Paris, France
| | - Paul Valensi
- Department of Endocrinology, Jean Verdier Hospital, Assistence Publique - Hôpitaux de Paris, Paris13 University, Sorbonne Paris Cité, Paris, France
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Mouhoubi N, Bamba-Funck J, Sutton A, Blaise L, Seror O, Ganne-Carrié N, Ziol M, N’Kontchou G, Charnaux N, Nahon P, Nault JC, Guyot E. Sulfatase 2 Along with Syndecan 1 and Glypican 3 Serum Levels are Associated with a Prognostic Value in Patients with Alcoholic Cirrhosis-Related Advanced Hepatocellular Carcinoma. J Hepatocell Carcinoma 2022; 9:1369-1383. [PMID: 36597436 PMCID: PMC9805748 DOI: 10.2147/jhc.s382226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 10/07/2022] [Indexed: 12/29/2022] Open
Abstract
Purpose Sulfatase 2 (SULF2) is an enzyme related to heparan sulfate modifications. Its expression, as for some heparan sulfate proteoglycans expression, has been linked to hepatocellular carcinoma (HCC) at mRNA level and immunohistochemistry staining on biopsy samples. This study aims to evaluate the prognostic value of serum levels of SULF2 in patients with alcoholic cirrhosis with or without HCC. Patients and Methods Two hundred and eighty-seven patients with alcoholic cirrhosis were enrolled in this study: 164 without HCC, 57 with early HCC, and 66 with advanced HCC at inclusion. We analyzed the association between SULF2 serum levels and prognosis using Kaplan-Meier method and univariate and multivariate analysis using a Cox model. Results Child-Pugh C Patients have higher serum levels of SULF2 than Child-Pugh A patients. Serum levels of SULF2 were also higher in patients with advanced HCC compared with the other groups. In patients with advanced HCC, high serum levels of SULF2 were associated with less favorable overall survival. Combination of SULF2 with Glypican 3 (GPC3) and Syndecan 1 (SDC1) serum levels enhanced the ability to discriminate worst prognostic in advanced HCC. Conclusion SULF2 along with GPC3 and SDC1 serum levels have been shown to be associated with a prognostic value in advanced HCC.
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Affiliation(s)
- Nesrine Mouhoubi
- Université Sorbonne Paris Nord, Laboratory for VascularTranslational Science, LVTS, INSERM, UMR 1148, Bobigny, F- 93000, France
| | - Jessica Bamba-Funck
- Université Sorbonne Paris Nord, Laboratory for VascularTranslational Science, LVTS, INSERM, UMR 1148, Bobigny, F- 93000, France,Service de biochimie, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France
| | - Angela Sutton
- Université Sorbonne Paris Nord, Laboratory for VascularTranslational Science, LVTS, INSERM, UMR 1148, Bobigny, F- 93000, France,Service de biochimie, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France
| | - Lorraine Blaise
- Service d’hépatologie, Hôpital Avicenne, AP-HP, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bondy, F-93143, France
| | - Olivier Seror
- Service de radiologie, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France
| | - Nathalie Ganne-Carrié
- Service d’hépatologie, Hôpital Avicenne, AP-HP, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bondy, F-93143, France,Inserm, UMR 1162, Génomique fonctionnelle des tumeUrs solides, Paris, F-75010, France
| | - Marianne Ziol
- Centre de Ressources Biologiques BB-0033-00027, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France,Service d’anatomie et cytologie pathologique, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France
| | - Gisèle N’Kontchou
- Service d’hépatologie, Hôpital Avicenne, AP-HP, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bondy, F-93143, France
| | - Nathalie Charnaux
- Université Sorbonne Paris Nord, Laboratory for VascularTranslational Science, LVTS, INSERM, UMR 1148, Bobigny, F- 93000, France,Service de biochimie, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France
| | - Pierre Nahon
- Service d’hépatologie, Hôpital Avicenne, AP-HP, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bondy, F-93143, France,Inserm, UMR 1162, Génomique fonctionnelle des tumeUrs solides, Paris, F-75010, France
| | - Jean-Charles Nault
- Service d’hépatologie, Hôpital Avicenne, AP-HP, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bondy, F-93143, France,Inserm, UMR 1162, Génomique fonctionnelle des tumeUrs solides, Paris, F-75010, France
| | - Erwan Guyot
- Université Sorbonne Paris Nord, Laboratory for VascularTranslational Science, LVTS, INSERM, UMR 1148, Bobigny, F- 93000, France,Service de biochimie, Hôpital Avicenne, hôpitaux universitaires Paris-Seine-Saint-Denis, Assistance publique Hôpitaux de Paris, Bobigny, F-93000, France,Correspondence: Erwan Guyot, Hôpitaux Universitaires Paris Seine-Saint-Denis, Laboratoire Biochimie-Pharmacologie et Biologie Moléculaire, 125 Rue de Stalingrad, Bobigny, 93000, France, Tel +33 1 48 95 56 29, Fax +33 1 48 95 56 27, Email
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Zalghout S, Vo S, Arocas V, Jadoui S, Hamade E, Badran B, Oudar O, Charnaux N, Longrois D, Boulaftali Y, Bouton MC, Richard B. Syndecan-1 Is Overexpressed in Human Thoracic Aneurysm but Is Dispensable for the Disease Progression in a Mouse Model. Front Cardiovasc Med 2022; 9:839743. [PMID: 35548440 PMCID: PMC9082175 DOI: 10.3389/fcvm.2022.839743] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Glycosaminoglycans (GAGs) pooling has long been considered as one of the histopathological characteristics defining thoracic aortic aneurysm (TAA) together with smooth muscle cells (SMCs) apoptosis and elastin fibers degradation. However, little information is known about GAGs composition or their potential implication in TAA pathology. Syndecan-1 (SDC-1) is a heparan sulfate proteoglycan that is implicated in extracellular matrix (ECM) interaction and assembly, regulation of SMCs phenotype, and various aspects of inflammation in the vascular wall. Therefore, the aim of this study was to determine whether SDC-1 expression was regulated in human TAA and to analyze its role in a mouse model of this disease. In the current work, the regulation of SDC-1 was examined in human biopsies by RT-qPCR, ELISA, and immunohistochemistry. In addition, the role of SDC-1 was evaluated in descending TAA in vivo using a mouse model combining both aortic wall weakening and hypertension. Our results showed that both SDC-1 mRNA and protein are overexpressed in the media layer of human TAA specimens. RT-qPCR experiments revealed a 3.6-fold overexpression of SDC-1 mRNA (p = 0.0024) and ELISA assays showed that SDC-1 protein was increased 2.3 times in TAA samples compared with healthy counterparts (221 ± 24 vs. 96 ± 33 pg/mg of tissue, respectively, p = 0.0012). Immunofluorescence imaging provided evidence that SMCs are the major cell type expressing SDC-1 in TAA media. Similarly, in the mouse model used, SDC-1 expression was increased in TAA specimens compared to healthy samples. Although its protective role against abdominal aneurysm has been reported, we observed that SDC-1 was dispensable for TAA prevalence or rupture. In addition, SDC-1 deficiency did not alter the extent of aortic wall dilatation, elastin degradation, collagen deposition, or leukocyte recruitment in our TAA model. These findings suggest that SDC-1 could be a biomarker revealing TAA pathology. Future investigations could uncover the underlying mechanisms leading to regulation of SDC-1 expression in TAA.
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Affiliation(s)
- Sara Zalghout
- LVTS, INSERM, U1148, Paris, France
- Université Sorbonne Paris Nord, Villetaneuse, France
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Sophie Vo
- LVTS, INSERM, U1148, Paris, France
- Université Sorbonne Paris Nord, Bobigny, France
| | - Véronique Arocas
- LVTS, INSERM, U1148, Paris, France
- Université de Paris, Paris, France
| | - Soumaya Jadoui
- LVTS, INSERM, U1148, Paris, France
- Université Sorbonne Paris Nord, Bobigny, France
| | - Eva Hamade
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Bassam Badran
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences-I, Lebanese University, Beirut, Lebanon
| | - Olivier Oudar
- LVTS, INSERM, U1148, Paris, France
- Université Sorbonne Paris Nord, Bobigny, France
| | - Nathalie Charnaux
- LVTS, INSERM, U1148, Paris, France
- Université Sorbonne Paris Nord, Bobigny, France
| | - Dan Longrois
- LVTS, INSERM, U1148, Paris, France
- Université de Paris, Paris, France
| | - Yacine Boulaftali
- LVTS, INSERM, U1148, Paris, France
- Université de Paris, Paris, France
| | | | - Benjamin Richard
- LVTS, INSERM, U1148, Paris, France
- Université Sorbonne Paris Nord, Bobigny, France
- *Correspondence: Benjamin Richard
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4
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Bassand K, Metzinger L, Naïm M, Mouhoubi N, Haddad O, Assoun V, Zaïdi N, Sainte‐Catherine O, Butt A, Guyot E, Oudar O, Laguillier‐Morizot C, Sutton A, Charnaux N, Metzinger‐Le Meuth V, Hlawaty H. miR-126-3p is essential for CXCL12-induced angiogenesis. J Cell Mol Med 2021; 25:6032-6045. [PMID: 34117709 PMCID: PMC8256342 DOI: 10.1111/jcmm.16460] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 02/22/2021] [Accepted: 02/27/2021] [Indexed: 12/22/2022] Open
Abstract
Atherosclerosis, in the ultimate stage of cardiovascular diseases, causes an obstruction of vessels leading to ischemia and finally to necrosis. To restore vascularization and tissue regeneration, stimulation of angiogenesis is necessary. Chemokines and microRNAs (miR) were studied as pro-angiogenic agents. We analysed the miR-126/CXCL12 axis and compared impacts of both miR-126-3p and miR-126-5p strands effects in CXCL12-induced angiogenesis. Indeed, the two strands of miR-126 were previously shown to be active but were never compared together in the same experimental conditions regarding their differential functions in angiogenesis. In this study, we analysed the 2D-angiogenesis and the migration assays in HUVEC in vitro and in rat's aortic rings ex vivo, both transfected with premiR-126-3p/-5p or antimiR-126-3p/-5p strands and stimulated with CXCL12. First, we showed that CXCL12 had pro-angiogenic effects in vitro and ex vivo associated with overexpression of miR-126-3p in HUVEC and rat's aortas. Second, we showed that 2D-angiogenesis and migration induced by CXCL12 was abolished in vitro and ex vivo after miR-126-3p inhibition. Finally, we observed that SPRED-1 (one of miR-126-3p targets) was inhibited after CXCL12 treatment in HUVEC leading to improvement of CXCL12 pro-angiogenic potential in vitro. Our results proved for the first time: 1-the role of CXCL12 in modulation of miR-126 expression; 2-the involvement of miR-126 in CXCL12 pro-angiogenic effects; 3-the involvement of SPRED-1 in angiogenesis induced by miR-126/CXCL12 axis.
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Affiliation(s)
- Kévin Bassand
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Laurent Metzinger
- HEMATIM UR 4666, Centre Universitaire de Recherche en Santé (CURS), Université de Picardie Jules Verne, CHU‐Amiens‐PicardieAmiensFrance
| | - Meriem Naïm
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Nesrine Mouhoubi
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Oualid Haddad
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Vincent Assoun
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Naïma Zaïdi
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Odile Sainte‐Catherine
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Amena Butt
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Erwan Guyot
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
- Laboratoire de BiochimieHôpital AvicenneAssistance Publique‐Hôpitaux de ParisBobignyFrance
| | - Olivier Oudar
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Christelle Laguillier‐Morizot
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
- Laboratoire de BiochimieHôpital AvicenneAssistance Publique‐Hôpitaux de ParisBobignyFrance
| | - Angela Sutton
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
- Laboratoire de BiochimieHôpital AvicenneAssistance Publique‐Hôpitaux de ParisBobignyFrance
| | - Nathalie Charnaux
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
- Laboratoire de BiochimieHôpital AvicenneAssistance Publique‐Hôpitaux de ParisBobignyFrance
| | - Valérie Metzinger‐Le Meuth
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
| | - Hanna Hlawaty
- INSERM U1148, Laboratory for Vascular Translational Sciences (LVTS), UFR SMBH Université Sorbonne Paris NordBobignyFrance
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Metzinger-Le Meuth V, Fourdinier O, Charnaux N, Massy ZA, Metzinger L. The expanding roles of microRNAs in kidney pathophysiology. Nephrol Dial Transplant 2019; 34:7-15. [PMID: 29800482 DOI: 10.1093/ndt/gfy140] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 04/21/2018] [Indexed: 12/22/2022] Open
Abstract
MicroRNAs (miRNAs) are short single-stranded RNAs that control gene expression through base pairing with regions within the 3'-untranslated region of target mRNAs. These small non-coding RNAs are now increasingly known to be involved in kidney physiopathology. In this review we will describe how miRNAs were in recent years implicated in cellular and animal models of kidney disease but also in chronic kidney disease, haemodialysed and grafted patients, acute kidney injury patients and so on. At the moment miRNAs are considered as potential biomarkers in nephrology, but larger cohorts as well as the standardization of methods of measurement will be needed to confirm their usefulness. It will further be of the utmost importance to select specific tissues and biofluids to make miRNAs appropriate in day-to-day clinical practice. In addition, up- or down-regulating miRNAs that were described as deregulated in kidney diseases may represent innovative therapeutic methods to cure these disorders. We will enumerate in this review the most recent methods that can be used to deliver miRNAs in a specific and suitable way in kidney and other organs damaged by kidney failure, such as the cardiovascular system.
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Affiliation(s)
- Valérie Metzinger-Le Meuth
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), UFR SMBH, Université Paris 13, Bobigny, France
| | | | - Nathalie Charnaux
- INSERM U1148, Laboratory for Vascular Translational Science (LVTS), UFR SMBH, Université Paris 13, Bobigny, France
| | - Ziad A Massy
- Division of Nephrology, Ambroise Paré Hospital, Paris Ile de France Ouest (UVSQ) University, Boulogne-Billancourt, France.,INSERM U 1018, Team 5, Centre for Research in Epidemiology and Population Health (CESP), Villejuif, France
| | - Laurent Metzinger
- HEMATIM, le Centre Universitaire de Recherche en Santé (CURS), Université de Picardie Jules Verne, Amiens, France
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Marinval N, Morenc M, Labour M, Samotus A, Mzyk A, Ollivier V, Maire M, Jesse K, Bassand K, Niemiec-Cyganek A, Haddad O, Jacob M, Chaubet F, Charnaux N, Wilczek P, Hlawaty H. Fucoidan/VEGF-based surface modification of decellularized pulmonary heart valve improves the antithrombotic and re-endothelialization potential of bioprostheses. Biomaterials 2018; 172:14-29. [DOI: 10.1016/j.biomaterials.2018.01.054] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 01/29/2018] [Accepted: 01/29/2018] [Indexed: 12/02/2022]
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Suffee N, Le Visage C, Hlawaty H, Aid-Launais R, Vanneaux V, Larghero J, Haddad O, Oudar O, Charnaux N, Sutton A. Pro-angiogenic effect of RANTES-loaded polysaccharide-based microparticles for a mouse ischemia therapy. Sci Rep 2017; 7:13294. [PMID: 29038476 PMCID: PMC5643514 DOI: 10.1038/s41598-017-13444-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 08/09/2017] [Indexed: 12/20/2022] Open
Abstract
Peripheral arterial disease results from the chronic obstruction of arteries leading to critical hindlimb ischemia. The aim was to develop a new therapeutic strategy of revascularization by using biodegradable and biocompatible polysaccharides-based microparticles (MP) to treat the mouse hindlimb ischemia. For this purpose, we deliver the pro-angiogenic chemokine Regulated upon Activation, Normal T-cell Expressed and Secreted (RANTES)/CCL5 in the mouse ischemic hindlimb, in solution or incorporated into polysaccharide-based microparticles. We demonstrate that RANTES-loaded microparticles improve the clinical score, induce the revascularization and the muscle regeneration in injured mice limb. To decipher the mechanisms underlying RANTES effects in vivo, we demonstrate that RANTES increases the spreading, the migration of human endothelial progenitor cells (EPC) and the formation of vascular network. The main receptors of RANTES i.e. CCR5, syndecan-4 and CD44 expressed at endothelial progenitor cell surface are involved in RANTES-induced in vitro biological effects on EPC. By using two RANTES mutants, [E66A]-RANTES with impaired ability to oligomerize, and [44AANA47]-RANTES mutated in the main RANTES-glycosaminoglycan binding site, we demonstrate that both chemokine oligomerization and binding site to glycosaminoglycans are essential for RANTES-induced angiogenesis in vitro. Herein we improved the muscle regeneration and revascularization after RANTES-loaded MP local injection in mice hindlimb ischemia.
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Affiliation(s)
- N Suffee
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - C Le Visage
- Inserm, UMR 1229, RMeS, Regenerative Medicine and Skeleton, Université de Nantes, ONIRIS, Nantes, France
| | - H Hlawaty
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - R Aid-Launais
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - V Vanneaux
- APHP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, F-75475, Paris, France.,Inserm UMR1160 et CIC de Biothérapies, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France
| | - J Larghero
- APHP, Hôpital Saint-Louis, Unité de Thérapie Cellulaire, Paris, France; Université Paris Diderot, Sorbonne Paris Cité, F-75475, Paris, France.,Inserm UMR1160 et CIC de Biothérapies, Institut Universitaire d'Hématologie, Hôpital Saint-Louis, Paris, France
| | - O Haddad
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - O Oudar
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France
| | - N Charnaux
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France.,Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, Bondy, France
| | - A Sutton
- INSERM, U1148, Laboratory for Vascular Translational Science, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny, France. .,Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, Bondy, France.
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Fysekidis M, Cosson E, Takbou K, Sutton A, Charnaux N, Banu I, Vicaut E, Valensi P. Effects of insulin analogs as an add-on to metformin on cutaneous microcirculation in type 2 diabetic patients. Microvasc Res 2017; 116:6-14. [PMID: 28954218 DOI: 10.1016/j.mvr.2017.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Revised: 09/21/2017] [Accepted: 09/22/2017] [Indexed: 12/17/2022]
Abstract
BACKGROUND A single insulin injection was shown to improve microcirculatory blood flow. Our aim was to examine the effects of 4weeks of insulin therapy by three randomly assigned insulin analog regimens (Detemir, Aspart, and their combination) on cutaneous blood flow (CBF) and microcirculatory endothelial function as an add-on to metformin in type 2 diabetic patients poorly controlled on oral antidiabetic treatment. METHODS Fourty-two type 2 diabetic patients with no history of cardiovascular disease in secondary failure to oral antidiabetic agents had CBF measurements before and after acetylcholine (Ach) iontophoretic administration. CBF measurements were performed at fasting and after a standardized breakfast during the post-prandial period. Before randomization (Visit 1, V1) during the tests, participants took only metformin. The same tests were repeated after 4weeks of insulin treatment (Visit 2, V2). RESULTS Thirty-four patients had good quality recordings for both visits. During V1, CBF and CBF response to Ach increased in the post-prandial period. After 4weeks of insulin treatment, metabolic parameters improved. Compared to V1, CBF at fasting did not increase at V2 but there was an improvement in endothelial function at fasting after Ach iontophoresis, without difference across insulin regimens. Oxidative stress markers were not modified, and E-selectin and vascular cell adhesion molecule 1 levels decreased after insulin treatment, without differences between insulin groups. CONCLUSIONS A strategy of improving glycemic control for 4weeks with insulin analogs improves microcirculatory endothelial reactivity and reduces endothelial biomarkers at fasting, whatever the insulin regimen used. Insulin therapy associated to metformin is able to improve fasting microvascular endothelial function even before complete metabolic control.
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Affiliation(s)
- Marinos Fysekidis
- AP-HP, Jean Verdier Hospital, Paris 13 University, Sorbonne Paris Cité, Department of Endocrinology-Diabetology-Nutrition, CRNH-IdF, CINFO, Bondy, France; Sorbonne Paris Cité, UMR U1153 Inserm/U1125 Inra/Cnam/Université Paris 13, Bobigny, France
| | - Emmanuel Cosson
- AP-HP, Jean Verdier Hospital, Paris 13 University, Sorbonne Paris Cité, Department of Endocrinology-Diabetology-Nutrition, CRNH-IdF, CINFO, Bondy, France; Sorbonne Paris Cité, UMR U1153 Inserm/U1125 Inra/Cnam/Université Paris 13, Bobigny, France
| | - Karim Takbou
- AP-HP, Jean Verdier Hospital, Paris 13 University, Sorbonne Paris Cité, Department of Endocrinology-Diabetology-Nutrition, CRNH-IdF, CINFO, Bondy, France
| | - Angela Sutton
- APHP, Jean Verdier Hospital, Biochemistry Department, Bondy, France
| | | | - Isabella Banu
- AP-HP, Jean Verdier Hospital, Paris 13 University, Sorbonne Paris Cité, Department of Endocrinology-Diabetology-Nutrition, CRNH-IdF, CINFO, Bondy, France
| | - Eric Vicaut
- Clinical Research Unit, Lariboisière-St Louis, Fernand Widal Hospital, APHP, Paris, France
| | - Paul Valensi
- AP-HP, Jean Verdier Hospital, Paris 13 University, Sorbonne Paris Cité, Department of Endocrinology-Diabetology-Nutrition, CRNH-IdF, CINFO, Bondy, France.
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Meune C, Goudot F, Garnier N, Dubois N, Copin G, Charnaux N, Szostek A, Bonnivard V, Gobeaux C, Sorbets E. P4898Current use and misuse of natriuretic peptides form a large cohort: results of big data analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p4898] [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: 11/13/2022] Open
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Meune C, Goudot F, Garnier N, Dubois N, Copin G, Charnaux N, Schwoerer M, Bonnivard V, Gobeaux C, Sorbets E. P4895Current use and misuse of troponin measurements form a large cohort: results of big data analysis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx493.p4895] [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: 11/12/2022] Open
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Collin C, Assmann K, Deschasaux M, Andreeva V, Lemogne C, Charnaux N, Sutton A, Hercberg S, Galan P, Touvier M, Kesse-Guyot E. Statut en vitamine D et symptômes dépressifs récurrents dans la cohorte française SU.VI.MAX. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2016.10.073] [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: 10/20/2022]
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Deschasaux M, Souberbielle JC, Andreeva V, Sutton A, Charnaux N, Kesse-Guyot E, Latino-Martel P, Druesne-Pecollo N, Szabo de Edelenyi F, Galan P, Hercberg S, Ezzedine K, Touvier M. Détection des individus à risque d’insuffisance en vitamine D : développement et validation d’un score basé sur des caractéristiques individuelles pour une utilisation simple en pratique clinique. NUTR CLIN METAB 2017. [DOI: 10.1016/j.nupar.2016.10.096] [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: 11/17/2022]
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Legallois D, Sorbets E, Chenevier-Gobeaux C, Hallouche M, Boubaya M, Charnaux N, Lebon A, Levy V, Beygui F, Meune C. Score Using Measurements of Plasma Midregional Pro–Atrial Natriuretic Peptide to Estimate the Duration of Atrial Fibrillation. ACTA ACUST UNITED AC 2017; 1:522-531. [DOI: 10.1373/jalm.2016.021477] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/04/2016] [Indexed: 11/06/2022]
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Marinval N, Saboural P, Haddad O, Maire M, Bassand K, Geinguenaud F, Djaker N, Ben Akrout K, Lamy de la Chapelle M, Robert R, Oudar O, Guyot E, Laguillier-Morizot C, Sutton A, Chauvierre C, Chaubet F, Charnaux N, Hlawaty H. Identification of a Pro-Angiogenic Potential and Cellular Uptake Mechanism of a LMW Highly Sulfated Fraction of Fucoidan from Ascophyllum nodosum. Mar Drugs 2016; 14:E185. [PMID: 27763505 PMCID: PMC5082333 DOI: 10.3390/md14100185] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Revised: 09/28/2016] [Accepted: 10/10/2016] [Indexed: 02/04/2023] Open
Abstract
Herein we investigate the structure/function relationships of fucoidans from Ascophyllum nodosum to analyze their pro-angiogenic effect and cellular uptake in native and glycosaminoglycan-free (GAG-free) human endothelial cells (HUVECs). Fucoidans are marine sulfated polysaccharides, which act as glycosaminoglycans mimetics. We hypothesized that the size and sulfation rate of fucoidans influence their ability to induce pro-angiogenic processes independently of GAGs. We collected two fractions of fucoidans, Low and Medium Molecular Weight Fucoidan (LMWF and MMWF, respectively) by size exclusion chromatography and characterized their composition (sulfate, fucose and uronic acid) by colorimetric measurement and Raman and FT-IR spectroscopy. The high affinities of fractionated fucoidans to heparin binding proteins were confirmed by Surface Plasmon Resonance. We evidenced that LMWF has a higher pro-angiogenic (2D-angiogenesis on Matrigel) and pro-migratory (Boyden chamber) potential on HUVECs, compared to MMWF. Interestingly, in a GAG-free HUVECs model, LMWF kept a pro-angiogenic potential. Finally, to evaluate the association of LMWF-induced biological effects and its cellular uptake, we analyzed by confocal microscopy the GAGs involvement in the internalization of a fluorescent LMWF. The fluorescent LMWF was mainly internalized through HUVEC clathrin-dependent endocytosis in which GAGs were partially involved. In conclusion, a better characterization of the relationships between the fucoidan structure and its pro-angiogenic potential in GAG-free endothelial cells was required to identify an adapted fucoidan to enhance vascular repair in ischemia.
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Affiliation(s)
- Nicolas Marinval
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Pierre Saboural
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Oualid Haddad
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Murielle Maire
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Kevin Bassand
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Frederic Geinguenaud
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Nadia Djaker
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Khadija Ben Akrout
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Marc Lamy de la Chapelle
- Laboratoire CSPBAT, CNRS UMR 7244, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, Bobigny F-93017, France.
| | - Romain Robert
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Olivier Oudar
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Erwan Guyot
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Christelle Laguillier-Morizot
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Angela Sutton
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Cedric Chauvierre
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Frederic Chaubet
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
| | - Nathalie Charnaux
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
- Laboratoire de Biochimie, Hôpital Jean Verdier, Assistance Publique-Hôpitaux de Paris, Bondy 93140, France.
| | - Hanna Hlawaty
- Inserm U1148, LVTS, Université Paris 13, Sorbonne Paris Cité, Paris 75018, France.
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Deschasaux M, Souberbielle JC, Latino-Martel P, Sutton A, Charnaux N, Druesne-Pecollo N, Galan P, Hercberg S, Le Clerc S, Kesse-Guyot E, Ezzedine K, Touvier M. Weight Status and Alcohol Intake Modify the Association between Vitamin D and Breast Cancer Risk. J Nutr 2016; 146:576-85. [PMID: 26817718 DOI: 10.3945/jn.115.221481] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 12/17/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Mechanistic hypotheses suggest that vitamin D may contribute to the prevention of breast cancer. However, epidemiologic evidence is inconsistent, suggesting a potential effect modification by individual factors. OBJECTIVE Our objective was to perform exploratory analyses on the prospective associations between the plasma 25-hydroxyvitamin D [25(OH)D] concentration, polymorphisms of genes encoding for the vitamin D receptor (VDR) and vitamin D-binding protein (also known as gc-globulin or group-specific component, GC), and breast cancer risk, along with 2 potential modifiers: body mass index (BMI; in kg/m(2)) and alcohol intake. METHODS A nested case-control study was set up in the SUpplémentation en VItamines et Minéraux Anti-oXydants (SU.VI.MAX) cohort (1994-2007), involving 233 women with breast cancer and 466 matched controls (mean ± SD age: 49 ± 6 y). The plasma total 25(OH)D concentration and gene polymorphisms were assessed on samples obtained at baseline. Conditional logistic regression models were computed. RESULTS A higher plasma 25(OH)D concentration was associated with a decreased risk of breast cancer for women with a BMI < the median of 22.4 [OR quartile (Q)4 compared with Q1: 0.46; 95% CI: 0.23, 0.89; P-trend = 0.01, P-interaction = 0.002], whereas it was associated with an increased risk for women with a BMI ≥ the median (OR Q4 compared with Q1: 2.45; 95% CI: 1.13, 5.28; P-trend = 0.02, P-interaction = 0.002). A plasma 25(OH)D concentration ≥ 10 ng/mL was associated with a decreased risk of breast cancer for women with alcohol intakes ≥ the median of 7.1 g/d (OR ≥10 compared with <10 ng/mL: 0.50; 95% CI: 0.26, 0.95; P = 0.03, P-interaction = 0.03). The genetic analyses were consistent with the results observed with plasma 25(OH)D. CONCLUSION In this prospective study, BMI and alcohol intake modified the association between vitamin D [plasma 25(OH)D and vitamin D-related gene polymorphisms] and breast cancer risk. These effect modifications suggest explanations for discrepancies in results of previous studies. This trial was registered at clinicaltrials.gov as NCT00272428.
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Affiliation(s)
- Mélanie Deschasaux
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France;
| | | | - Paule Latino-Martel
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France
| | - Angela Sutton
- Biochemistry Department, Jean Verdier Hospital, Inserm U698, Paris 13 University, Bondy, France
| | - Nathalie Charnaux
- Biochemistry Department, Jean Verdier Hospital, Inserm U698, Paris 13 University, Bondy, France
| | - Nathalie Druesne-Pecollo
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France
| | - Pilar Galan
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France
| | - Serge Hercberg
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France; Public Health Department, Avicenne Hospital, Bobigny, France
| | - Sigrid Le Clerc
- Conservatoire National des Arts et Métiers (CNAM), Genomics, Bioinformatics and Applications Team (EA4627), Paris, France; and
| | - Emmanuelle Kesse-Guyot
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France
| | - Khaled Ezzedine
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France; Dermatology Department, Saint André Hospital, Bordeaux, France
| | - Mathilde Touvier
- Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS), French National Institute of Health and Medical Research (Inserm U1153), French National Institute for Agricultural Research (INRA U1125), French National Conservatory of Arts and Crafts (CNAM), Paris 13 University, Nutritional Epidemiology Research Team (EREN), Bobigny, France
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Deschasaux M, Souberbielle JC, Andreeva VA, Sutton A, Charnaux N, Kesse-Guyot E, Latino-Martel P, Druesne-Pecollo N, Szabo de Edelenyi F, Galan P, Hercberg S, Ezzedine K, Touvier M. Quick and Easy Screening for Vitamin D Insufficiency in Adults: A Scoring System to Be Implemented in Daily Clinical Practice. Medicine (Baltimore) 2016; 95:e2783. [PMID: 26886626 PMCID: PMC4998626 DOI: 10.1097/md.0000000000002783] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Vitamin D is essential regarding several health outcomes. Prevention of insufficiency (25-hydroxyvitamin D concentration ≤20 ng/mL) generally entails blood testing and/or supplementation, strategies that should target at-risk individuals because blood testing is costly, and unwarranted supplementation could result in vitamin D overload with unknown long-term consequences. Our objective was to develop a simple score (Vitamin D Insufficiency Prediction score, VDIP) for identifying adults at risk of vitamin D insufficiency. Subjects were 1557 non-vitamin D-supplemented middle-aged adults from the SU.VI.MAX cohort. Scoring points corresponded to the rounded odds ratio for each individual-level characteristic associated with vitamin D insufficiency in a multivariable logistic regression model. Receiver operating characteristic curve (area under curve), sensitivity, specificity, and positive and negative predictive values were computed. External validation was performed in an independent cohort (NutriNet-Santé, N = 781). For female sex, overweight, low physical activity, winter season, moderate sun exposure, and very fair or dark skin 1.5 points were attributed; 2 points for latitude ≥48°N and spring season; 2.5 points for obesity and late winter; 3 points for low sun exposure. Points were then summed up for each participant. The VDIP score had an AUC = 0.70 ± 0.01 (validation: 0.67 ± 0.02). With a score of 7 or more, 70% of the participants were vitamin D-insufficient (80% in those with a score ≥9), sensitivity/specificity were 0.67/0.63, and positive and negative predictive values were 0.70/0.59. The VDIP score performed well in identifying middle-aged adults at risk of vitamin D insufficiency (score ≥7, moderate risk; score≥9, high risk), using only simple individual-level characteristics easily assessable in day-to-day clinical practice. Implementation of this simple and costless score could thus obviate unwarranted supplementation and/or blood testing.
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Affiliation(s)
- Mélanie Deschasaux
- From the Sorbonne Paris Cité Epidemiology and Statistics Research Center (CRESS) (MD, VAA, EK-G, PL-M, ND-P, FSdE, PG, SH, KE, MT), Nutritional Epidemiology Research Team (EREN), Inserm U1153, Inra U1125, Cnam, Paris 13 University, Bobigny; Department of Physiology (J-CS), Necker Hospital, Inserm U845, Paris; Jean Verdier Hospital, Biochemistry Department (AS, NC), Inserm U698, Paris 13 University, Bondy; Public Health Department (SH), Avicenne Hospital, Bobigny; and Dermatology Department (KE), Henri Mondor Hospital, Paris, France
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Deschasaux M, Souberbielle JC, Latino-Martel P, Sutton A, Charnaux N, Druesne-Pecollo N, Galan P, Hercberg S, Le Clerc S, Kesse-Guyot E, Ezzedine K, Touvier M. Prospective associations between vitamin D status, vitamin D-related gene polymorphisms, and risk of tobacco-related cancers. Am J Clin Nutr 2015; 102:1207-15. [PMID: 26447153 DOI: 10.3945/ajcn.115.110510] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Accepted: 09/09/2015] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Experimental evidence has suggested that vitamin D may be protective against tobacco-related cancers through the inhibition of the formation of tumors induced by tobacco carcinogens. To our knowledge, only one previous epidemiologic study investigated the association between vitamin D status and tobacco-related cancer risk, and no study has focused on vitamin D-related gene polymorphisms. OBJECTIVE Our objective was to prospectively study the association between plasma 25-hydroxyvitamin D [25(OH)D] concentrations, vitamin D-related gene polymorphisms, and risk of tobacco-related cancers. DESIGN A total of 209 tobacco-related cancers were diagnosed within the SU.VI.MAX (Supplémentation en vitamines et minéraux antioxydants) cohort (1994-2007) and were matched with 418 controls as part of a nested case-control study. Tobacco-related cancers (i.e., cancers for which tobacco is one of the risk factors) included several sites in the respiratory, digestive, reproductive, and urinary systems. Total plasma 25(OH)D was assessed with the use of an electrochemoluminescent assay. Polymorphisms were determined with the use of a TaqMan assay. Conditional logistic regression models were computed. RESULTS A 25(OH)D concentration ≥30 ng/mL was associated with reduced risk of tobacco-related cancers (OR for ≥30 compared with <30 ng/mL: 0.59; 95% CI 0.35, 0.99; P = 0.046). This association was observed in former and current smokers (OR for ≥30 compared with <30 ng/mL: 0.43; 95% CI: 0.23, 0.84; P = 0.01) but not in never smokers (P = 0.8). The vitamin D receptor (VDR) FokI AA genotype and retinoid X receptor (RXR) rs7861779 TT genotype were associated with increased risk of tobacco-related cancers [OR for homozygous mutant type (MT) compared with wild type (WT): 1.87; 95% CI: 1.08, 3.23; P-trend = 0.02; OR for heterozygous type (HT) plus MT compared with WT: 1.60; 95% CI: 1.07, 2.38; P = 0.02]. CONCLUSIONS In this prospective study, high vitamin D status [25(OH)D concentration ≥30 ng/mL] was associated with decreased risk of tobacco-related cancers, especially in smokers. These results, which are supported by mechanistic plausibility, suggest that vitamin D may contribute to the prevention of tobacco-induced cancers in smokers and deserve additional investigation. The SU.VI.MAX trial was registered at clinicaltrials.gov as NCT00272428.
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Affiliation(s)
- Mélanie Deschasaux
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France;
| | | | - Paule Latino-Martel
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France
| | - Angela Sutton
- Biochemistry Department, Jean Verdier Hospital, Inserm U698, Paris 13 University, Bondy, France
| | - Nathalie Charnaux
- Biochemistry Department, Jean Verdier Hospital, Inserm U698, Paris 13 University, Bondy, France
| | - Nathalie Druesne-Pecollo
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France
| | - Pilar Galan
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France
| | - Serge Hercberg
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France; Public Health Department, Avicenne Hospital, Bobigny, France
| | - Sigrid Le Clerc
- CNAM, Genomics, Bioinformatics and Applications Team (EA4627), Paris, France; and
| | - Emmanuelle Kesse-Guyot
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France
| | - Khaled Ezzedine
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France; Dermatology Department, Saint André Hospital, Bordeaux, France
| | - Mathilde Touvier
- Paris 13 University, Nutritional Epidemiology Research Team, French National Institute of Health and Medical Research (Inserm) U1153, French National Institute for Agricultural Research (Inra) U1125, French National Conservatory of Arts and Crafts (CNAM), Sorbonne Paris Cité University, Bobigny, France
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Marinval N, Saboural P, Haddad O, Letourneur D, Charnaux N, Hlawaty H. Angiogenesis potentialized by highly sulfated fucoidan: Role of the chemokines and the proteoglycans. Atherosclerosis 2015. [DOI: 10.1016/j.atherosclerosis.2015.04.304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Marinval N, Saboural P, Haddad O, Maire M, Letourneur D, Charnaux N, Hlawaty H. 0024 : Angiogenesis potentialized by highly sulfated fucoidan: role of the chemokines and the proteoglycans. Archives of Cardiovascular Diseases Supplements 2015. [DOI: 10.1016/s1878-6480(15)30050-1] [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: 10/23/2022]
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Sultana S, Djaker N, Boca-Farcau S, Salerno M, Charnaux N, Astilean S, Hlawaty H, de la Chapelle ML. Comparative toxicity evaluation of flower-shaped and spherical gold nanoparticles on human endothelial cells. Nanotechnology 2015; 26:055101. [PMID: 25573907 DOI: 10.1088/0957-4484/26/5/055101] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In this paper, we propose a multi-parametric in vitro study of the cytotoxicity of gold nanoparticles (GNPs) on human endothelial cell (HUVEC). The cytotoxicity is evaluated by incubating cells with six different GNP types which have two different morphologies: spherical and flower-shaped, two sizes (∼15 and ∼50 nm diameter) and two surface chemistries (as prepared form and PEGylated form). Our results showed that by increasing the concentration of GNPs the cell viability decreases with a toxic concentration threshold of 10 pM for spherical GNPs and of 1 pM for flower-shaped GNPs. Dark field images, flow cytometry and spreading test revealed that flower-shaped GNPs have more deleterious effects on the cell mechanisms than spherical GNPs. We demonstrated that the main parameter in the evaluation of the GNPs toxicity is the GNPs roughness and that this effect is independent on the surface chemistry. We assume that this behavior is highly related to the efficiency of the GNPs internalization within the cells and that this effect is enhanced due to the specific geometry of the flower-shaped GNPs.
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Affiliation(s)
- Sadequa Sultana
- Université Paris 13, Sorbonne Paris Cité, UFR SMBH, Laboratoire CSPBAT, CNRS (UMR 7244), 74 rue Marcel Cachin, F-93017 Bobigny, France
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Deschasaux M, Souberbielle JC, Latino-Martel P, Sutton A, Charnaux N, Druesne-Pecollo N, Galan P, Hercberg S, Le Clerc S, Kesse-Guyot E, Ezzedine K, Touvier M. P241: Association prospective entre vitamine D (statut plasmatique et polymorphismes génétiques) et risque de cancer du sein : modulation par le statut pondéral et la consommation d’alcool. NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70883-0] [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: 10/24/2022]
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Touvier M, Deschasaux M, Montourcy M, Sutton A, Charnaux N, Kesse-Guyot E, Assmann K, Fezeu L, Latino-Martel P, Druesne-Pecollo N, Guinot C, Latreille J, Malvy D, Galan P, Hercberg S, Le Clerc S, Souberbielle JC, Ezzedine K. P228: Déterminants du statut en vitamine D chez des adultes de type caucasien : influence de l’exposition solaire, des apports alimentaires, du mode de vie et de facteurs sociodémographiques, anthropométriques et génétiques. NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70870-2] [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: 10/24/2022]
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Maillard L, Saito N, Hlawaty H, Friand V, Suffee N, Chmilewsky F, Haddad O, Laguillier C, Guyot E, Ueyama T, Oudar O, Sutton A, Charnaux N. RANTES/CCL5 mediated-biological effects depend on the syndecan-4/PKCα signaling pathway. Biol Open 2014; 3:995-1004. [PMID: 25260916 PMCID: PMC4197448 DOI: 10.1242/bio.20148227] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The perpetuation of angiogenesis is involved in certain chronic inflammatory diseases. The accelerated neovascularisation may result from an inflammatory status with a response of both endothelial cells and monocytes to inflammatory mediators such as chemokines. We have previously described in vitro and in vivo the pro-angiogenic effects of the chemokine Regulated on Activation, Normal T Cell Expressed and Secreted (RANTES)/CCL5. The effects of RANTES/CCL5 may be related to its binding to G protein-coupled receptors and to proteoglycans such as syndecan-1 and -4. The aim of this study was to evaluate the functionality of syndecan-4 as a co-receptor of RANTES/CCL5 by the use of mutated syndecan-4 constructs. Our data demonstrate that site-directed mutations in syndecan-4 modify RANTES/CCL5 biological activities in endothelial cells. The SDC4S179A mutant, associated with an induced protein kinase C (PKC)α activation, leads to higher RANTES/CCL5 pro-angiogenic effects, whereas the SDC4L188QQ and the SDC4A198del mutants, leading to lower phosphatidylinositol 4,5-bisphosphate (PIP2) binding or to lower PDZ protein binding respectively, are associated with reduced RANTES/CCL5 cellular effects. Moreover, our data highlight that the intracellular domain of SDC-4 is involved in RANTES/CCL5-induced activation of the PKCα signaling pathway and biological effect. As RANTES/CCL5 is involved in various physiopathological processes, the development of a new therapeutic strategy may be reliant on the mechanism by which RANTES/CCL5 exerts its biological activities, for example by targeting the binding of the chemokine to its proteoglycan receptor.
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Affiliation(s)
- Loïc Maillard
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Naoaki Saito
- Laboratory of Molecular Pharmacology, Biosignal Research Center, Kobe University, Kobe 657-8501, Japan
| | - Hanna Hlawaty
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Véronique Friand
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Nadine Suffee
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Fanny Chmilewsky
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Oualid Haddad
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Christelle Laguillier
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, 93143 Bondy, France
| | - Erwan Guyot
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, 93143 Bondy, France
| | - Takehiko Ueyama
- Laboratory of Molecular Pharmacology, Biosignal Research Center, Kobe University, Kobe 657-8501, Japan
| | - Olivier Oudar
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France
| | - Angela Sutton
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, 93143 Bondy, France
| | - Nathalie Charnaux
- Inserm U1148, Laboratory for Vascular Translational Science, Bio-ingénierie Cardio-vasculaire, UFR SMBH, Université Paris 13, Sorbonne Paris Cité, 74 rue Marcel Cachin, 93017 Bobigny, France Laboratoire de Biochimie, Hôpital Jean Verdier, AP-HP, 93143 Bondy, France
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Maillard L, Friand V, Suffee N, Hlawaty H, Haddad O, Chmilewsky F, Backhouche S, Desbois E, Oudar O, Letourneur D, Saito N, Ueyama T, Charnaux N, Sutton A. Syndecan-4 intracellular domain orchestrates rantes/CCL5-induced monocyte arrest on endothelial cell monolayer under flow. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.079] [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: 10/25/2022]
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Julia C, Czernichow S, Charnaux N, Ahluwalia N, Andreeva V, Touvier M, Galan P, Fezeu L. Relationships between adipokines, biomarkers of endothelial function and inflammation and risk of type 2 diabetes. Diabetes Res Clin Pract 2014; 105:231-8. [PMID: 24931702 DOI: 10.1016/j.diabres.2014.05.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [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: 01/11/2013] [Revised: 04/14/2014] [Accepted: 05/12/2014] [Indexed: 12/17/2022]
Abstract
AIMS Identification of novel biomarkers of diabetes risk help to understand mechanisms of pathogenesis and improve risk prediction. Our objectives were to examine the relationships between adipokines, biomarkers of inflammation and endothelial function and development of type 2 diabetes; and to assess the relevance of including these biomarkers in type 2 diabetes prediction risk models. METHODS 1345 subjects from the SU.VI.MAX study, who were free of diabetes at baseline and who completed 13 years of follow-up were included in the present analyses. Odds ratios (OR) with 95% confidence intervals (95% CI) of incident type 2 diabetes associated with a 1-SD increase in adiponectin, leptin, C-reactive protein (CRP), soluble intracellular adhesion modecule-1 (sICAM-1), soluble vascular cell adhesion molecule 1 (sVCAM-1), E-selectin and monocyte chemoattractant protein-1 (MCP-1) were estimated. Predicitive performances of models including biomarkers were assessed with area under the receiver operating curves (AUC) and integrated discrimination improvement (IDI) statistics. RESULTS 82 subjects developed type 2 diabetes during follow-up. The risk of developing type 2 diabetes increased with increasing concentrations of leptin (2.04 (1.28;3.26)), sICAM-1 (1.39 (1.08;1.78)) and sVCAM-1 (1.29 (1.01;1.64)). Type 2 diabetes associations with leptin remained significant after adjusting for a combination of biomarkers. Models adjusted for novel biomarkers had improved performance compared to models adjusted for classical risk factors as assessed by IDI, but not by AUC. CONCLUSIONS Adipokines, biomarkers of inflammation and endothelial function were significantly associated to onset of type 2 diabetes. However their inclusion in predictive scores is not supported by the present study.
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Affiliation(s)
- C Julia
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologies et Biostatistiques Sorbonne Paris Cité (CRESS) U1153 Inserm; U1125, Inra; Cnam; Université Paris 13, Université Paris 7, Uniersité Paris 5, Bobigny, France; Département de Santé Publique, Hôpital Avicenne (AP-HP); Université Paris 13, Bobigny, France.
| | - S Czernichow
- INSERM, U1018, Centre for Research in Epidemiology and Population Health, Villejuif, France; Université Versailles St-Quentin, Boulogne-Billancourt, France; APHP, Hôpital Ambroise Paré, Service de Nutrition, Boulogne-Billancourt, France
| | - N Charnaux
- Department of Biochemistry, Jean-Verdier Hospital (AP-HP), Bondy, France
| | - N Ahluwalia
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologies et Biostatistiques Sorbonne Paris Cité (CRESS) U1153 Inserm; U1125, Inra; Cnam; Université Paris 13, Université Paris 7, Uniersité Paris 5, Bobigny, France
| | - V Andreeva
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologies et Biostatistiques Sorbonne Paris Cité (CRESS) U1153 Inserm; U1125, Inra; Cnam; Université Paris 13, Université Paris 7, Uniersité Paris 5, Bobigny, France
| | - M Touvier
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologies et Biostatistiques Sorbonne Paris Cité (CRESS) U1153 Inserm; U1125, Inra; Cnam; Université Paris 13, Université Paris 7, Uniersité Paris 5, Bobigny, France
| | - P Galan
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologies et Biostatistiques Sorbonne Paris Cité (CRESS) U1153 Inserm; U1125, Inra; Cnam; Université Paris 13, Université Paris 7, Uniersité Paris 5, Bobigny, France
| | - L Fezeu
- Equipe de Recherche en Epidémiologie Nutritionnelle (EREN), Centre de Recherche en Epidémiologies et Biostatistiques Sorbonne Paris Cité (CRESS) U1153 Inserm; U1125, Inra; Cnam; Université Paris 13, Université Paris 7, Uniersité Paris 5, Bobigny, France
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Tarhuni A, Guyot E, Rufat P, Sutton A, Bourcier V, Grando V, Ganne-Carrié N, Ziol M, Charnaux N, Beaugrand M, Moreau R, Trinchet JC, Mansouri A, Nahon P. Impact of cytokine gene variants on the prediction and prognosis of hepatocellular carcinoma in patients with cirrhosis. J Hepatol 2014; 61:342-50. [PMID: 24751829 DOI: 10.1016/j.jhep.2014.04.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [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: 09/26/2013] [Revised: 03/03/2014] [Accepted: 04/07/2014] [Indexed: 12/26/2022]
Abstract
BACKGROUND & AIMS Genetic polymorphisms modulate the expression of proinflammatory cytokines. We prospectively assessed the influence of 6 single nucleotide polymorphisms (SNPs) in TNFα, IL6, and IL1β genes on the risk of hepatocellular carcinoma (HCC) in patients with cirrhosis. METHODS TNFα (G-238A, C-863A, G-308A), IL6 (C-174G), and IL1β (C-31T, C-511T) SNPs were assessed in 232 alcoholics and 253 HCV-infected patients with biopsy-proven cirrhosis, prospectively followed-up and screened for HCC. Their influence on HCC development was assessed using the Kaplan-Meier method. RESULTS These variants did not influence the risk of HCC in alcoholic patients. Conversely, two variants influenced the risk of HCC occurrence in patients with HCV-related cirrhosis, namely the TNFα-308 (A) allele (HR = 2.4 [1.6-3.7], Log-rank <0.0001) and the IL1β-31 (T) allele (HR = 1.5 [1.1-2.1], Log-rank = 0.004). When stratifying HCV-infected patients into four genotypic associations expected to progressively increase TNFα and IL1β production, we observed increasing risk of HCC occurrence (Log-rank <0.0001) from group 1 to 4. The TNFα-308 (A) allele was the only genetic trait independently associated with risk of HCC in these patients, along with older age, male gender, BMI, and platelet count. These variables led to construction of a predictive score able to separate patients with HCV-related cirrhosis into three subgroups with progressively increasing 5-year cumulative incidences of 4.7%, 14.1%, and 36.3%, respectively (Log-rank <0.0001). CONCLUSIONS Genetic heterogeneity in the TNFα and IL1β gene promoters influences the risk of HCC in patients with HCV-induced cirrhosis. These genetic data, when incorporated into clinical scores, are able to refine selection of risk classes of HCC.
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Affiliation(s)
- Arige Tarhuni
- INSERM, U773, Centre de Recherche Biomédicale, Bichat Beaujon CRB3, University Paris 7, Paris, France
| | - Erwan Guyot
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Biochemistry Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Pierre Rufat
- Biostatistics Unit, Pitié-Salpêtrière Hospital, AP-HP, Paris, France
| | - Angela Sutton
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Biochemistry Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Valérie Bourcier
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Liver Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Véronique Grando
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Liver Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Nathalie Ganne-Carrié
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Liver Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Marianne Ziol
- Liver Biobank "CRB des hôpitaux universitaires PSSD", Jean Verdier Hospital, APHP, University Paris 13, Bondy, France; Pathology Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Nathalie Charnaux
- INSERM, U773, Centre de Recherche Biomédicale, Bichat Beaujon CRB3, University Paris 7, Paris, France; University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France
| | - Michel Beaugrand
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Liver Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Richard Moreau
- INSERM, U773, Centre de Recherche Biomédicale, Bichat Beaujon CRB3, University Paris 7, Paris, France
| | - Jean-Claude Trinchet
- University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Liver Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France; Liver Biobank "CRB des hôpitaux universitaires PSSD", Jean Verdier Hospital, APHP, University Paris 13, Bondy, France
| | - Abdellah Mansouri
- INSERM, U773, Centre de Recherche Biomédicale, Bichat Beaujon CRB3, University Paris 7, Paris, France
| | - Pierre Nahon
- INSERM, U773, Centre de Recherche Biomédicale, Bichat Beaujon CRB3, University Paris 7, Paris, France; University Paris 13-UFR SMBH/INSERM U1148, Bobigny, France; Liver Unit, Jean Verdier Hospital, APHP, University Paris 13, Bondy, France.
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Touvier M, Deschasaux M, Montourcy M, Sutton A, Charnaux N, Kesse-Guyot E, Fezeu LK, Latino-Martel P, Druesne-Pecollo N, Malvy D, Galan P, Hercberg S, Ezzedine K, Souberbielle JC. Interpretation of plasma PTH concentrations according to 25OHD status, gender, age, weight status, and calcium intake: importance of the reference values. J Clin Endocrinol Metab 2014; 99:1196-203. [PMID: 24527713 DOI: 10.1210/jc.2013-3349] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [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: 02/05/2023]
Abstract
CONTEXT Reference values for plasma PTH assessment were generally established on small samples of apparently healthy subjects, without considering their 25-hydroxyvitamin D (25OHD) status or other potential modifiers of PTH concentration. OBJECTIVE Our objective was to assess ranges of plasma PTH concentration in a large sample of adults, stratifying by 25OHD status, age, gender, weight status, and calcium intake. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional survey is based on 1824 middle-aged Caucasian adults from the Supplémentation en Vitamines et Minéraux Antioxydants study (1994). MAIN OUTCOME MEASURES Plasma PTH and 25OHD concentrations were measured by an electrochemoluminescent immunoassay. Extreme percentiles of plasma PTH concentrations were assessed specifically in subjects who had plasmatic values of 25OHD of 20 ng/mL or greater and 30 ng/mL or greater. RESULTS Among subjects with 25OHD status of 20 ng/mL or greater, the 97.5th percentile of plasma PTH concentration was 45.5 ng/L. By using this value as a reference, 5% of the subjects with plasma 25OHD less than 20 nmol/L had a high plasma PTH level, reflecting secondary hyperparathyroidism. Among vitamin D-replete subjects (25OHD status of 20 ng/mL or greater), the 97.5th percentile of plasma PTH was higher in overweight/obese subjects (51.9 vs 43.5 ng/L among normal weight subjects). CONCLUSIONS The reference value for plasma PTH defined in this vitamin D-replete population was far below the value currently provided by the manufacturer (65 ng/L) and varied according to overweight status. These results may contribute to improve the diagnosis of primary and secondary hyperparathyroidism and subsequent therapeutic indication.
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Affiliation(s)
- Mathilde Touvier
- Sorbonne Paris Cité Research Center (M.T., M.D., M.M., E.K.-G., L.K.F., P.L.-M., N.D.-P., P.G., S.H., K.E.), Nutritional Epidemiology Research Team, INSERM Unité 557, Institut National de la Recherche Agronomique Unité 1125, Conservatoire National des Arts et Métiers, and INSERM Unité 698 (A.S., N.C.), Paris 13 University, F-93017 Bobigny, France; Department Biochemistry (A.S., N.C.), Jean Verdier Hospital, F-93143 Bondy, France; Department of Dermatology (D.M., K.E.), St André Hospital, F-33000 Bordeaux, France; Department of Public Health (S.H.), Avicenne Hospital, F-93009 Bobigny, France; and Department of Physiology (J.-C.S.), Necker Hospital (Assistance Publique-Hôpitaux de Paris), and INSERM Unité 845, F-75270 Paris, France
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Touvier M, Deschasaux M, Montourcy M, Sutton A, Charnaux N, Kesse-Guyot E, Fezeu L, Latino-Martel P, Druesne-Pecollo N, Guinot C, Malvy D, Latreille J, Galan P, Hercberg S, Souberbielle J, Ezzedine K. Déterminants du taux de vitamine D plasmatique : données épidémiologiques et enjeux en 2013 en France. Ann Dermatol Venereol 2013. [DOI: 10.1016/j.annder.2013.09.139] [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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Ziol M, Sutton A, Calderaro J, Barget N, Aout M, Leroy V, Blanc JF, Sturm N, Bioulac-Sage P, Nahon P, Nault JC, Charnaux N, N'kontchou G, Trinchet JC, Delehedde M, Seror O, Beaugrand M, Vicaut E, Ganne-Carrié N. ESM-1 expression in stromal cells is predictive of recurrence after radiofrequency ablation in early hepatocellular carcinoma. J Hepatol 2013; 59:1264-70. [PMID: 23928407 DOI: 10.1016/j.jhep.2013.07.030] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [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: 02/06/2013] [Revised: 06/13/2013] [Accepted: 07/16/2013] [Indexed: 12/25/2022]
Abstract
BACKGROUND & AIMS The prognosis of hepatocellular carcinoma (HCC) treated by radiofrequency ablation (RFA) is mainly linked to tumor recurrence. So far, no tissue biomarker of recurrence has been validated in biopsy samples. We aimed at investigating the prognostic value of tissue biomarkers in HCC biopsy samples of patients treated with RFA. METHODS All consecutive naive patients from 3 university hospitals, with compensated cirrhosis, early-stage (BCLC 0/A) uninodular HCC treated with RFA, and available tumor biopsy, were included. Edmondson's grade, and the expression of cytokeratin 19, glutamine synthase, beta-catenin, epithelial cell adhesion molecule (EpCAM), and endothelial cell-specific molecule 1 (ESM-1) were assessed. Main clinical end points were overall and early recurrence. Statistical analyses were performed using Kaplan Meier, Log-rank test, and Cox models. RESULTS 150 patients were included. Recurrence, death or liver transplantation occurred in 85, 51, and 12 patients, respectively. Median follow-up was 27months. ESM-1 expression by HCC stromal endothelial cells was observed in 58 patients (40%) and was associated with higher serum AFP levels, larger tumor, and more frequent expression of EpCAM and surrogate markers of activation of the Wnt-ß-catenin pathway. The 2 independent predictive factors of overall recurrence were serum AFP (HR 1.11 [1.002; 1.22], p=0.045) and ESM-1 expression (HR 1.56 [1.004; 2.43], p=0.048). ESM-1 expression was also an independent predictive factor of early recurrence (HR 1.81 [1.02; 3.21], p=0.042). CONCLUSIONS ESM-1 expression by stromal endothelial cells, in tumor biopsy samples, has an independent predictive value of early recurrence after RFA.
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Affiliation(s)
- Marianne Ziol
- Service d'Anatomie pathologique, Groupe hospitalier Paris-Seine-Saint Denis, Hôpital Jean Verdier, AP-HP, 93143 Bondy, France; Université Paris 13, Sorbonne Paris Cité, UFR SMBH, F-93000 Bobigny, France
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Cosson E, Banu I, Cussac-Pillegand C, Chen Q, Chiheb S, Jaber Y, Nguyen MT, Charnaux N, Valensi P. Glycation gap is associated with macroproteinuria but not with other complications in patients with type 2 diabetes. Diabetes Care 2013; 36:2070-6. [PMID: 23378625 PMCID: PMC3687281 DOI: 10.2337/dc12-1780] [Citation(s) in RCA: 19] [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: 02/03/2023]
Abstract
OBJECTIVE We investigated whether glycation gap (G-Gap), an index of intracellular glycation of proteins, was associated with diabetes complications. RESEARCH DESIGN AND METHODS We measured concomitantly HbA1c and fructosamine in 925 patients with type 2 diabetes to calculate the G-Gap, defined as the difference between measured HbA1c, and fructosamine-based predicted HbA1c. Patients were explored for retinopathy, nephropathy, peripheral neuropathy, cardiac autonomic neuropathy (n = 512), and silent myocardial ischemia (n = 506). RESULTS Macroproteinuria was the only complication that was associated with G-Gap (prevalence in the first, second, and third tertile of G-Gap: 2.9, 6.2, and 11.0%, respectively; P < 0.001). The G-Gap was higher in patients with macroproteinuria than in those without (1.06 ± 1.62 vs. 0.03 ± 1.30%; P < 0.0001). Because HbA1c was associated with both G-Gap (HbA1c 7.0 ± 1.4, 7.9 ± 1.4, and 10.1 ± 1.8% in the first, second, and third G-Gap tertile, respectively; P < 0.0001) and macroproteinuria (HbA1c 8.8 ± 2.2% if macroproteinuria, 8.3 ± 2.0% if none; P < 0.05), and because it could have been a confounder, we matched 54 patients with macroproteinuria and 200 patients without for HbA1c. Because macroproteinuria was associated with lower serum albumin and fructosamine levels, which might account for higher G-Gap, we calculated in this subpopulation albumin-indexed fructosamine and G-Gap; macroproteinuria was independently associated with male sex (odds ratio [OR] 3.2 [95% CI 1.5-6.7]; P < 0.01), hypertension (2.9 [1.1-7.5]; P < 0.05), and the third tertile of albumin-indexed G-Gap (2.3 [1.1-4.4]; P < 0.05) in multivariate analysis. CONCLUSIONS In type 2 diabetic patients, G-Gap was associated with macroproteinuria, independently of HbA1c, albumin levels, and confounding factors, suggesting a specific role of intracellular glycation susceptibility on kidney glomerular changes.
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Affiliation(s)
- Emmanuel Cosson
- AP-HP, Jean Verdier Hospital, Paris 13 University, Sorbonne Paris Cité, Department of Endocrinology, Diabetology, and Nutrition, CRNH-IdF, Bondy, France
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Nault JC, Guyot E, Laguillier C, Chevret S, Ganne-Carrie N, N'Kontchou G, Beaugrand M, Seror O, Trinchet JC, Coelho J, Lasalle P, Charnaux N, Delehedde M, Sutton A, Nahon P. Serum proteoglycans as prognostic biomarkers of hepatocellular carcinoma in patients with alcoholic cirrhosis. Cancer Epidemiol Biomarkers Prev 2013; 22:1343-52. [PMID: 23780836 DOI: 10.1158/1055-9965.epi-13-0179] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Proteoglycans are involved in neoangiogenesis and transduction of oncogenic signals, two hallmarks of carcinogenesis. METHODS This study sought to assess the prognostic value of serum levels of three proteoglycans (endocan, syndecan-1, and glypican-3) and VEGF in 295 patients with alcoholic cirrhosis: 170 without hepatocellular carcinoma, 58 with early hepatocellular carcinoma, and 67 with advanced hepatocellular carcinoma at inclusion. We analyzed the association between proteoglycan levels and prognosis using Kaplan-Meier and Cox methods. RESULTS Serum levels of the three proteoglycans and VEGF were increased in patients with advanced hepatocellular carcinoma compared with those without hepatocellular carcinoma or with early hepatocellular carcinoma. In multivariate analysis, high levels of serum endocan (>5 ng/mL) were independently associated with death [HR, 2.84; 95% confidence interval (CI,) 1.18-6.84; P = 0.02], but not with hepatocellular carcinoma occurrence, in patients without hepatocellular carcinoma at baseline. High serum endocan (>5 ng/mL) and syndecan-1 (>50 ng/mL) levels were significantly associated with greater risk of tumor recurrence (P = 0.025) in patients with early hepatocellular carcinoma treated by radiofrequency ablation. In patients with advanced hepatocellular carcinoma, high serum levels of endocan (P = 0.004) and syndecan-1 (P = 0.006) were significantly associated with less favorable overall survival. However, only a high level of serum syndecan-1 (>50 ng/mL) was independently associated with greater risk of death (HR, 6.21 95% CI, 1.90-20.30; P = 0.0025). CONCLUSION Serum endocan and syndecan-1 are easily assessable prognostic serum biomarkers of overall survival in alcoholic cirrhosis with and without hepatocellular carcinoma. IMPACT These new biomarkers will be useful to manage patients with hepatocellular carcinoma developed on alcoholic cirrhosis.
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Cosson E, Chiheb S, Cussac-Pillegand C, Banu I, Hamo-Tchatchouang E, Nguyen MT, Aout M, Charnaux N, Valensi P. Haemoglobin glycation may partly explain the discordance between HbA1c measurement and oral glucose tolerance test to diagnose dysglycaemia in overweight/obese subjects. Diabetes & Metabolism 2013; 39:118-25. [DOI: 10.1016/j.diabet.2012.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/19/2012] [Accepted: 08/01/2012] [Indexed: 11/27/2022]
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Touvier M, Fezeu L, Ahluwalia N, Julia C, Charnaux N, Sutton A, Méjean C, Latino-Martel P, Hercberg S, Galan P, Czernichow S. Association between prediagnostic biomarkers of inflammation and endothelial function and cancer risk: a nested case-control study. Am J Epidemiol 2013; 177:3-13. [PMID: 23171880 DOI: 10.1093/aje/kws359] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Experimental and prevalent case-control studies suggest an association between biomarkers of inflammation, endothelial function, and adiposity and cancer risk, but results from prospective studies have been limited. The authors' objective was to prospectively examine the relations between these biomarkers and cancer risk. A nested case-control study was designed within the Supplémentation en Vitamines et Minéraux Antioxydants (SU.VI.MAX) Study, a nationwide French cohort study, to include all first primary incident cancers diagnosed between 1994 and 2007 (n = 512). Cases were matched with randomly selected controls (n = 1,024) on sex, age (in 2-year strata), body mass index (weight (kg)/height (m)(2); <25 vs. ≥25), and SU.VI.MAX intervention group. Conditional logistic regression was used to study the associations between prediagnostic levels of high-sensitivity C-reactive protein (hs-CRP), adiponectin, leptin, soluble intercellular adhesion molecule 1 (sICAM-1), soluble vascular cell adhesion molecule 1, soluble E-selectin, and monocyte chemoattractant protein 1 and cancer risk. All statistical tests were 2-sided. Plasma sICAM-1 level was positively associated with breast cancer risk (for quartile 4 vs. quartile 1, multivariate odds ratio (OR) = 1.86, 95% confidence interval (CI): 1.06, 3.26; P(trend) = 0.048). Plasma hs-CRP level was positively associated with prostate cancer risk (for quartile 4 vs. quartile 1, multivariate OR = 3.04, 95% CI: 1.28, 7.23; P(trend) = 0.03). These results suggest that prediagnostic hs-CRP and sICAM-1 levels are associated with increased prostate and breast cancer risk, respectively.
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Affiliation(s)
- Mathilde Touvier
- Nutritional Epidemiology Unit, INSERM U557, Paris 13 University, 74 rue Marcel Cachin, F-93017 Bobigny, France.
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Loire P, Vicaut E, Cruaud P, Charnaux N, Carbillon L. Limited value of angiogenic factors in obese women. Pregnancy Hypertens 2012; 2:368-70. [DOI: 10.1016/j.preghy.2012.06.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2011] [Revised: 05/31/2012] [Accepted: 06/24/2012] [Indexed: 11/30/2022]
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Briane D, Slimani H, Tagounits A, Naejus R, Haddad O, Coudert R, Charnaux N, Cao A. Inhibition of VEGF expression in A431 and MDA-MB-231 tumour cells by cationic lipid-mediated siRNA delivery. J Drug Target 2012; 20:347-54. [PMID: 22475204 DOI: 10.3109/1061186x.2012.656645] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
In order to promote siRNA transfer in tumour cells, we used an original cationic lipid, synthesized in our laboratory, dimethyl-hydroxyethyl-aminopropane-carbamoyl-cholesterol (DMHAPC-Chol). Liposomes were prepared from this lipid and dioleoylphosphatidylethanolamine (DOPE) in equimolar proportion. Its transfecting capacity was evaluated using ELISA, cell cytometry, and RT-PCR in estimating the silencing effect of VEGF siRNA. This liposome efficiently delivered VEGF siRNA in two human cancer cell lines abundantly secreting VEGF, A431 and MDA-MB-231. Results showed that 50 nM of VEGF siRNA carried by DMHAPC-Chol/DOPE liposomes already silenced more than 90% of VEGF in these cells. A comparative study with two commercial carriers indicated that the inhibition induced by VEGF siRNA transported by cationic DMHAPC-Chol/DOPE liposomes was comparable to that induced by INTERFERin and better than lipofectamine 2000. Moreover, a transfection by a GFP plasmid followed by a GFP siRNA showed that DMHAPC-Chol/DOPE liposomes compared to lipofectamine were less efficient for plasmid but better for siRNA transport. Following one of our previous works concerning cell delivery of plasmid ( Percot et al., 2004 ), the main interest of results presented here resides in the double potential of DMHAPC-Chol/DOPE liposomes to deliver little-sized siRNA as well as large nucleic acids in cells.
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Affiliation(s)
- Dominique Briane
- Groupe Vectorisation, UFR de Médecine, Université Paris 13, 74 rue Marcel Cachin, F93017 Bobigny Cedex, France.
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Touvier M, Fezeu L, Ahluwalia N, Julia C, Charnaux N, Sutton A, Méjean C, Latino-Martel P, Hercberg S, Galan P, Czernichow S. Pre-diagnostic levels of adiponectin and soluble vascular cell adhesion molecule-1 are associated with colorectal cancer risk. World J Gastroenterol 2012; 18:2805-12. [PMID: 22719189 PMCID: PMC3374984 DOI: 10.3748/wjg.v18.i22.2805] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 12/14/2011] [Accepted: 03/10/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To examine the relationships between pre-diagnostic biomarkers and colorectal cancer risk and assess their relevance in predictive models.
METHODS: A nested case-control study was designed to include all first primary incident colorectal cancer cases diagnosed between inclusion in the SUpplémentation en VItamines et Minéraux AntioXydants cohort in 1994 and the end of follow-up in 2007. Cases (n = 50) were matched with two randomly selected controls (n = 100). Conditional logistic regression models were used to investigate the associations between pre-diagnostic levels of hs-CRP, adiponectin, leptin, soluble vascular cell adhesion molecule-1 (sVCAM-1), soluble intercellular adhesion molecule-1, E-selectin, monocyte chemoattractant protein-1 and colorectal cancer risk. Area under the receiver operating curves (AUC) and relative integrated discrimination improvement (RIDI) statistics were used to assess the discriminatory potential of the models.
RESULTS: Plasma adiponectin level was associated with decreased colorectal cancer risk (P for linear trend = 0.03). Quartiles of sVCAM-1 were associated with increased colorectal cancer risk (P for linear trend = 0.02). No association was observed with any of the other biomarkers. Compared to standard models with known risk factors, those including both adiponectin and sVCAM-1 had substantially improved performance for colorectal cancer risk prediction (P for AUC improvement = 0.01, RIDI = 26.5%).
CONCLUSION: These results suggest that pre-diagnostic plasma adiponectin and sVCAM-1 levels are associated with decreased and increased colorectal cancer risk, respectively. These relationships must be confirmed in large validation studies.
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Touvier M, Kesse-Guyot E, Andreeva VA, Fezeu L, Charnaux N, Sutton A, Druesne-Pecollo N, Hercberg S, Galan P, Zelek L, Latino-Martel P, Czernichow S. Modulation of the association between plasma intercellular adhesion molecule-1 and cancer risk by n-3 PUFA intake: a nested case-control study. Am J Clin Nutr 2012; 95:944-50. [PMID: 22378736 DOI: 10.3945/ajcn.111.027805] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Mechanistic data suggest that n-3 PUFAs and endothelial function may interact and play a role in carcinogenesis, but epidemiologic evidence is lacking. OBJECTIVE Our objective was to investigate whether the prospective association between soluble intercellular adhesion molecule-1 (sICAM-1) and cancer risk is modulated by n-3 PUFA intake. DESIGN A nested case-control study was designed to include all first-incident cancer cases diagnosed in the SUpplémentation en VItamines et Minéraux AntioXydants cohort between 1994 and 2007, with available dietary data from 24-h records (n = 408). Cases were matched with 1 or 2 randomly selected controls (n = 760). Conditional logistic regression was used to estimate ORs and 95% CIs for the association between prediagnostic plasma concentrations of sICAM-1 and cancer risk, stratified by n-3 PUFA intake. The interactions between sICAM-1 and n-3 PUFA intake were tested. RESULTS An interaction was observed between sICAM-1 and n-3 PUFA intake, which was consistent across the studied cancer locations (P-interaction = 0.036 for overall, 0.038 for breast, and 0.020 for prostate cancer risk). sICAM-1 concentrations were positively associated with cancer risk among subjects with n-3 PUFA intakes below the median (multivariate OR(Tertile3vsTertile1): 2.8; 95% CI: 1.5, 5.2; P-trend = 0.001), whereas this association was not observed for subjects with n-3 PUFA intakes above the median (OR(Tertile3vsTertile1): 1.3; 95% CI: 0.8, 2.3; P-trend = 0.3). CONCLUSION These findings suggest that n-3 PUFA intake may counteract the procarcinogenic actions of sICAM-1.
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Affiliation(s)
- Mathilde Touvier
- INSERM U557, National Institute of Health and Medical Research, Inra, Cnam, Paris 13 University, Bobigny, France.
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Nahon P, Sutton A, Rufat P, Charnaux N, Mansouri A, Moreau R, Ganne-Carrié N, Grando-Lemaire V, N'Kontchou G, Trinchet JC, Pessayre D, Beaugrand M. A variant in myeloperoxidase promoter hastens the emergence of hepatocellular carcinoma in patients with HCV-related cirrhosis. J Hepatol 2012; 56:426-32. [PMID: 21907168 DOI: 10.1016/j.jhep.2011.08.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [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: 04/15/2011] [Revised: 08/11/2011] [Accepted: 08/14/2011] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Genetic dimorphisms modulate the activities of several pro- or antioxidant enzymes, including myeloperoxidase (MPO), catalase (CAT), manganese superoxide dismutase (SOD2), and glutathione peroxidase 1 (GPx1). We assessed the role of the G(-463)A-MPO, T(-262)C-CAT, Ala16Val-SOD2, and Pro198Leu-GPx1 variants in modulating HCC development in patients with HCV-induced cirrhosis. METHODS Two hundred and five patients with HCV-induced, biopsy-proven cirrhosis but without detectable HCC at inclusion were prospectively followed-up for HCC development. The influence of various genotypes on HCC occurrence was assessed with the Kaplan-Meier method. RESULTS During follow-up (103.2±3.4 months), 84 patients (41%) developed HCC, and 66 died. Whereas the Ala16Val-SOD2 or Pro198Leu-GPx1 dimorphisms did not modulate the risk, HCC occurrence was increased in patients with either the homozygous GG-MPO genotype (HR=2.8 [1.7-4.4]; first quartile time to HCC occurrence: 45 vs. 96 months; LogRank <0.0001) or the homozygous CC-CAT genotype (HR=1.74 [1.06-2.82]; first quartile time to HCC occurrence: 55 vs. 96 months; LogRank=0.02). Compared to patients with neither of these two at risk factors, patients with only the CC-CAT genotype had a HR of 2.05 [0.9-4.6] (p=0.08) and patients with only the GG-MPO genotype had a HR of 3.8 [1.5-9.1] (p=0.002), while patients with both risk factors had an HR of 4.8 [2.2-10.4] (p<0.0001). However, only the GG-MPO genotype was independently associated with the HCC risk in multivariate Cox analysis. CONCLUSIONS The high activity-associated GG-MPO genotype increases the rate of HCC occurrence in patients with HCV-induced cirrhosis.
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Affiliation(s)
- Pierre Nahon
- Service d'Hépatologie, Hôpital Jean Verdier, AP-HP, Bondy, France.
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Nahon P, Sutton A, Pessayre D, Rufat P, Charnaux N, Trinchet JC, Beaugrand M, Deugnier Y. Do genetic variations in antioxidant enzymes influence the course of hereditary hemochromatosis? Antioxid Redox Signal 2011; 15:31-8. [PMID: 20673159 DOI: 10.1089/ars.2010.3529] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 12/14/2022]
Abstract
Iron-induced oxidative stress promotes hepatic injury in hereditary hemochromatosis, which can be influenced by genetic traits affecting antioxidant enzymes. We assessed the influence of Ala16Val-superoxide dismutase 2, Pro198Leu-glutathione peroxidase 1, and -463G/A-myeloperoxidase genotypes (high activity for the Ala, Pro, and G alleles, respectively) on the risks of cirrhosis and hepatocellular carcinoma (HCC) in patients homozygous for the C282Y-hemochromatosis (HFE) gene mutation. Both the 2G-myeloperoxidase genotype and carriage of one or two copies of the Ala-superoxide dismutase 2 allele were more frequent in patients with cirrhosis or HCC. Patients cumulating these two genetic traits had higher rates of cirrhosis and HCC than other patients.
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Affiliation(s)
- Pierre Nahon
- Hôpital Jean Verdier, AP-HP, Service d'Hépatologie, Bondy, France.
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Charni F, Sutton A, Rufat P, Laguillier C, Mansouri A, Moreau R, Ganne-Carrié N, Trinchet JC, Beaugrand M, Charnaux N, Nahon P. Chemokine RANTES Promoter Dimorphisms and Hepatocellular Carcinoma Occurrence in Patients with Alcoholic or Hepatitis C Virus–Related Cirrhosis. Cancer Epidemiol Biomarkers Prev 2011; 20:1439-46. [DOI: 10.1158/1055-9965.epi-11-0341] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Cosson E, Nguyen MT, Hamo-Tchatchouang E, Banu I, Chiheb S, Charnaux N, Valensi P. What would be the outcome if the American Diabetes Association recommendations of 2010 had been followed in our practice in 1998-2006? Diabet Med 2011; 28:567-74. [PMID: 21480967 DOI: 10.1111/j.1464-5491.2010.03215.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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: 12/16/2022]
Abstract
AIMS In 2010, the American Diabetes Association has published recommendations on the population to be screened for dysglycaemia; the diagnostic criteria for intermediate hyperglycaemia and diabetes using oral glucose tolerance testing and HbA(1c); and the patients eligible for treatment with metformin. We aimed to evaluate the consequences of screening with oral glucose tolerance test or HbA(1c) in an at-risk population. METHODS Among 1177 overweight or obese consecutive adults without known diabetes who were referred to our department for weight management, we selected 1157 individuals (83% female; 80% European) fulfilling the American Diabetes Association 2010 criteria for dysglycaemia screening. RESULTS Mean age was 41.2 ± 13 years, BMI 37.0 ± 7.2 kg/m(2), fasting plasma glucose 4.9 ± 0.8 mmol/l and HbA(1c) (turbidimetric immunoassay) 5.7 ± 0.7% (39 mmol/mol). Based on oral glucose tolerance test and HbA(1c), respectively, 76 (6.6%) and 113 (9.8%) patients had diabetes, including 34 sharing both criteria; 307 (26.5%) and 478 (41.3%) had intermediate hyperglycaemia; and 130 (11.2%) and 255 (22.0%) would be treated with metformin. The sensitivity/specificity of HbA(1c) ≥ 6.5% (48 mmol/mol) for the diagnosis of diabetes according to the oral glucose tolerance test were 44.7/92.7%. Diabetes risk scores and UK Prospective Diabetes Study cardiovascular risk score were the highest in the 130 patients having both an abnormal oral glucose tolerance test and HbA(1c) ≥ 5.7%. CONCLUSIONS In a population at risk for diabetes, the HbA(1c) strategy could lead to diagnosing more cases of dysglycaemia and to treating more patients with metformin than the oral glucose tolerance test strategy. The consistency of either diagnostic criteria was low. The patients with the highest a priori risk of diabetes and cardiovascular disease were those fulfilling both oral glucose tolerance test and HbA(1c) criteria.
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Affiliation(s)
- E Cosson
- AP-HP, Department of Endocrinology-Diabetology-Nutrition, Paris-Nord University, CRNH-IdF, Bondy, France.
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Hlawaty H, Suffee N, Sutton A, Oudar O, Haddad O, Ollivier V, Laguillier-Morizot C, Gattegno L, Letourneur D, Charnaux N. Low molecular weight fucoidan prevents intimal hyperplasia in rat injured thoracic aorta through the modulation of matrix metalloproteinase-2 expression. Biochem Pharmacol 2011; 81:233-43. [DOI: 10.1016/j.bcp.2010.09.021] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2010] [Revised: 09/20/2010] [Accepted: 09/22/2010] [Indexed: 10/19/2022]
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Charniot JC, Sutton A, Bonnefont-Rousselot D, Cosson C, Khani-Bittar R, Giral P, Charnaux N, Albertini JP. Manganese superoxide dismutase dimorphism relationship with severity and prognosis in cardiogenic shock due to dilated cardiomyopathy. Free Radic Res 2010; 45:379-88. [DOI: 10.3109/10715762.2010.532792] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Dagouassat M, Suffee N, Hlawaty H, Haddad O, Charni F, Laguillier C, Vassy R, Martin L, Schischmanoff PO, Gattegno L, Oudar O, Sutton A, Charnaux N. Monocyte chemoattractant protein-1 (MCP-1)/CCL2 secreted by hepatic myofibroblasts promotes migration and invasion of human hepatoma cells. Int J Cancer 2010; 126:1095-108. [PMID: 19642141 DOI: 10.1002/ijc.24800] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The aim of our study was to investigate whether myofibroblasts and the chemokine monocyte chemoattractant protein-1 (MCP-1)/CCL2 may play a role in hepatocellular carcinoma progression. We observed that hepatic myofibroblast LI90 cells express MCP-1/CCL2 mRNA and secrete this chemokine. Moreover, myofibroblast LI90 cell-conditioned medium (LI90-CM) induces human hepatoma Huh7 cell migration and invasion. These effects are strongly reduced when a MCP-1/CCL2-depleted LI90-CM was used. We showed that MCP-1/CCL2 induces Huh7 cell migration and invasion through its G-protein-coupled receptor CCR2 and, to a lesser extent, through CCR1 only at high MCP-1/CCL2 concentrations. MCP-1/CCL2's chemotactic activities rely on tyrosine phosphorylation of focal adhesion components and depend on matrix metalloproteinase (MMP)-2 and MMP-9. Furthermore, we observed that Huh7 cell migration and invasion induced by the chemokine are strongly inhibited by heparin, by beta-D-xyloside treatment of cells and by anti-syndecan-1 and -4 antibodies. Finally, we developed a 3-dimensional coculture model of myofibroblast LI90 and Huh7 cells and demonstrated that MCP-1/CCL2 and its membrane partners, CCR1 and CCR2, may be involved in the formation of mixed hepatoma-myofibroblast spheroids. In conclusion, our data show that human liver myofibroblasts act on hepatoma cells in a paracrine manner to increase their invasiveness and suggest that myofibroblast-derived MCP-1/CCL2 could be involved in the pathogenesis of hepatocellular carcinoma.
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Affiliation(s)
- Maylis Dagouassat
- INSERM U698, Bioingénierie cardiovasculaire, Université Paris 13, Bobigny, France
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Nahon P, Sutton A, Rufat P, Ziol M, Akouche H, Laguillier C, Charnaux N, Ganne-Carrié N, Grando-Lemaire V, N'Kontchou G, Trinchet JC, Gattegno L, Pessayre D, Beaugrand M. Myeloperoxidase and superoxide dismutase 2 polymorphisms comodulate the risk of hepatocellular carcinoma and death in alcoholic cirrhosis. Hepatology 2009; 50:1484-93. [PMID: 19731237 DOI: 10.1002/hep.23187] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.1] [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] [Indexed: 12/20/2022]
Abstract
UNLABELLED Alcohol increases reactive oxygen species (ROS) formation in hepatocyte mitochondria and by reduced nicotinamide adenine dinucleotide phosphate oxidases and myeloperoxidase (MPO) in Kupffer cells and liver-infiltrating neutrophils. Manganese superoxide dismutase (MnSOD) converts superoxide anion into hydrogen peroxide, which, unless detoxified by glutathione peroxidase or catalase (CAT), can form the hydroxyl radical with iron. Our aim was to determine whether Ala16Val-superoxide dismutase 2 (SOD2), G-463A-MPO, or T-262C-CAT dimorphisms modulate the risks of hepatocellular carcinoma (HCC) and death in alcoholic cirrhosis. Genotypes and the hepatic iron score were assessed in 190 prospectively followed patients with alcoholic cirrhosis. During follow-up (61.1 +/- 2.7 months), 51 patients developed HCC, and 71 died. The T-262C-CAT dimorphism did not modify hepatic iron, HCC, or death. The GG-MPO genotype did not modify iron but increased the risks of HCC and death. The hazard ratio (HR) was 4.7 (2.1-10.1) for HCC and 3.6 (1.9-6.7) for death. Carriage of one or two Ala-SOD2 allele(s) was associated with higher liver iron scores and higher risks of HCC and death. The 5-year incidence of HCC was 34.4% in patients with both the GG-MPO genotype and one or two Ala-SOD2 alleles, 5.1% in patients with only one of these two traits, and 0% in patients with none of these traits. Corresponding 5-year death rates were 37.6%, 11.6%, and 5%. CONCLUSION The combination of the GG-MPO genotype (leading to high MPO expression) and at least one Ala-SOD2 allele (associated with high liver iron score) markedly increased the risks of HCC occurrence and death in patients with alcoholic cirrhosis.
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Affiliation(s)
- Pierre Nahon
- Service d'Hépatologie, Hôpital Jean Verdier, AP-HP, Bondy, France.
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Albanese P, Caruelle D, Frescaline G, Delbé J, Petit-Cocault L, Huet E, Charnaux N, Uzan G, Papy-Garcia D, Courty J. Glycosaminoglycan mimetics–induced mobilization of hematopoietic progenitors and stem cells into mouse peripheral blood: Structure/function insights∗. Exp Hematol 2009; 37:1072-83. [DOI: 10.1016/j.exphem.2009.06.005] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2008] [Revised: 05/18/2009] [Accepted: 06/09/2009] [Indexed: 10/20/2022]
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Friand V, Haddad O, Papy-Garcia D, Hlawaty H, Vassy R, Hamma-Kourbali Y, Perret GY, Courty J, Baleux F, Oudar O, Gattegno L, Sutton A, Charnaux N. Glycosaminoglycan mimetics inhibit SDF-1/CXCL12-mediated migration and invasion of human hepatoma cells. Glycobiology 2009; 19:1511-24. [PMID: 19717493 DOI: 10.1093/glycob/cwp130] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
We have recently reported that the CXC-chemokine stromal cell-derived factor-1 (SDF-1)/CXCL12 induces proliferation, migration, and invasion of the Huh7 human hepatoma cells through its G-protein-coupled receptor CXCR4 and that glycosaminoglycans (GAGs) are involved in these events. Here, we demonstrate by surface plasmon resonance that the chemokine binds to GAG mimetics obtained by grafting carboxylate, sulfate or acetate groups onto a dextran backbone. We also demonstrate that chemically modified dextrans inhibit SDF-1/CXCL12-mediated in vitro chemotaxis and anchorage-independent cell growth in a dose-dependent manner. The binding of GAG mimetics to the chemokine and their effects in modulating the SDF-1/CXCL12 biological activities are mainly related to the presence of sulfate groups. Furthermore, the mRNA expression of enzymes involved in heparan sulfate biosynthesis, such as exostosin-1 and -2 or N-deacetylase N-sulfotransferases remained unchanged, but heparanase mRNA and protein expressions in Huh7 cells were decreased upon GAG mimetic treatment. Moreover, decreasing heparanase-1 mRNA levels by RNA interference significantly reduced SDF-1/CXCL12-induced extracellular signal-regulated kinase 1/2 (ERK 1/2) phosphorylation. Therefore, we suggest that GAG mimetic effects on SDF-1/CXCL12-mediated hepatoma cell chemotaxis may rely on decreased heparanase expression, which impairs SDF-1/CXCL12's signaling. Altogether, these data suggest that GAG mimetics may compete with cellular heparan sulfate chains for the binding to SDF-1/CXCL12 and may affect heparanase expression, leading to reduced SDF-1/CXCL12 mediated in vitro chemotaxis and growth of hepatoma cells.
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Nahon P, Charnaux N, Friand V, Prost-Squarcioni C, Ziol M, Lièvre N, Trinchet JC, Beaugrand M, Gattegno L, Pessayre D, Sutton A. The manganese superoxide dismutase Ala16Val dimorphism modulates iron accumulation in human hepatoma cells. Free Radic Biol Med 2008; 45:1308-17. [PMID: 18760346 DOI: 10.1016/j.freeradbiomed.2008.08.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [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] [Received: 01/21/2008] [Revised: 07/24/2008] [Accepted: 08/03/2008] [Indexed: 11/18/2022]
Abstract
The Ala/16Val dimorphism incorporates alanine (Ala) or valine (Val) in the mitochondrial targeting sequence of manganese superoxide dismutase (MnSOD), modifying MnSOD mitochondrial import and activity. In alcoholic cirrhotic patients, the Ala-MnSOD allele is associated with hepatic iron accumulation and an increased risk of hepatocellular carcinoma. The Ala-MnSOD variant could modulate the expression of proteins involved in iron storage (cytosolic ferritin), uptake (transferrin receptors, TfR-1 and-2), extrusion (hepcidin), and intracellular distribution (frataxin) to trigger hepatic iron accumulation. We therefore assessed the Ala/Val-MnSOD genotype and the hepatic iron score in 162 alcoholic cirrhotic patients. In our cohort, this hepatic iron score increased with the number of Ala-MnSOD alleles. We also transfected Huh7 cells with Ala-MnSOD-or Val-MnSOD-encoding plasmids and assessed cellular iron, MnSOD activity, and diverse mRNAs and proteins. In Huh7 cells, MnSOD activity was higher after Ala-MnSOD transfection than after Val-MnSOD transfection. Additionally, iron supplementation decreased transfected MnSOD proteins and activities. Ala-MnSOD transfection increased the mRNAs and proteins of ferritin, hepcidin, and TfR2, decreased the expression of frataxin, and caused cellular iron accumulation. In contrast, Val-MnSOD transfection had limited effects. In conclusion, the Ala-MnSOD variant favors hepatic iron accumulation by modulating the expression of proteins involved in iron homeostasis.
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Affiliation(s)
- Pierre Nahon
- UPRES EA3410, UFR SMBH, Université Paris 13, Bobigny, France
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Slimani H, Guenin E, Briane D, Coudert R, Charnaux N, Starzec A, Vassy R, Lecouvey M, Perret YG, Cao A. Lipopeptide-based liposomes for DNA delivery into cells expressing neuropilin-1. J Drug Target 2008; 14:694-706. [PMID: 17162739 DOI: 10.1080/10611860600947607] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [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: 10/23/2022]
Abstract
In this paper, liposomes containing a lipopeptide bearing a ligand specifically recognized by neuropilin-1 (NRP-1) have been used to target a human breast cancer cell line overexpressing this receptor. The synthesis of this lipopeptide, C16-A7R, formed by the sequence of 7 amino acids ATWLPPR, linked to a palmitoyl fatty chain by an amide bond was described. After the characterisation of cationic liposomes formulated with the lipopeptide, the results obtained using various techniques showed that the lipopeptide-based liposomes were well accumulated in cells of the human breast cancer line MDA-MB-231 overexpressing NRP-1. Delivery of reporter genes expressing either beta-galactosidase (beta-gal) or green fluorescent protein (GFP) was selectively enhanced in these cells when compared with NRP-1-negative cells. In MDA-MB-231 cells, an increase by 250% in beta-gal activity was observed when delivered by lipopeptide-based liposomes compared to cationic liposomes alone.
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Affiliation(s)
- Hocine Slimani
- Laboratoire de Biophysique Moléculaire Cellulaire et Tissulaire, CNRS UMR 7033, UFR de Médecine, Université Paris 13, 74 rue Marcel Cachin, F93017, Bobigny Cedex, France
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Fermas S, Gonnet F, Sutton A, Charnaux N, Mulloy B, Du Y, Baleux F, Daniel R. Sulfated oligosaccharides (heparin and fucoidan) binding and dimerization of stromal cell-derived factor-1 (SDF-1/CXCL 12) are coupled as evidenced by affinity CE-MS analysis. Glycobiology 2008; 18:1054-64. [PMID: 18796646 DOI: 10.1093/glycob/cwn088] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Chemokine stromal cell-derived factor-1 (SDF-1) is a potent chemoattractant involved in leukocyte trafficking and metastasis. Heparan sulfate on the cell surface binds SDF-1 and may modulate its function as a coreceptor of this chemokine. A major effect of the glycosaminoglycan binding may be on the quaternary structure of SDF-1, which has been controversially reported as a monomer or a dimer. We have investigated the effect of sulfated oligosaccharides on the oligomerization of SDF-1 and of its mutated form SDF-1 (3/6), using affinity capillary electrophoresis (ACE) hyphenated to mass spectrometry (MS). Coupled to MS, ACE allowed the study for the first time of the effect of size-defined oligosaccharides on the quaternary organization of SDF-1 in muM range concentrations, i.e., lower values than the mM values previously reported in NMR, light scattering, and ultracentrifugation experiments. Our results showed that in the absence of sulfated oligosaccharides, SDF-1 is mostly monomeric in solution. However, dimer formation was observed upon interaction with heparin-sulfated oligosaccharides despite the mM Kd values for dimerization. A SDF-1/oligosaccharide 2/1 complex was detected, indicating that oligosaccharide binding promoted the dimerization of SDF-1. Heparin tetrasaccharide but not disaccharide promoted dimer formation, suggesting that the dimer required to be stabilized by a long enough bound oligosaccharide. The SDF-1/oligosaccharide 1/1 complex was only observed with heparin disaccharide and fucoidan pentasaccharide, pointing out the role of specific structural determinants in promoting dimer formation. These results underline the importance of dimerization induced by glycosaminoglycans for chemokine functionality.
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