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Guiddir T, Sénéchal H, Selva MA, Couderc R, Swoboda I, Hilger C, Kuehn A, Chantran Y, Yen-Nicolaÿ S, Vrai T, Ruellou G, Baudin B, Poncet P, Nemni A. Chicken meat allergy in children: Complex sensitization profiles with newly described allergen candidates. Allergy 2024. [PMID: 38523510 DOI: 10.1111/all.16106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/04/2024] [Accepted: 03/15/2024] [Indexed: 03/26/2024]
Affiliation(s)
- T Guiddir
- Paris-Saclay University, AP-HP, Bicêtre Hospital, Pediatric Pulmonology and Allergology Unit, Le Kremlin Bicêtre, France
| | - H Sénéchal
- Sorbonne University, AP-HP, Armand Trousseau Children Hospital, Biochemistry Department, Allergy & Environment Team, Paris, France
| | - M A Selva
- Sorbonne University, AP-HP, Armand Trousseau Children Hospital, Immunology Department, Allergology Sector, Paris, France
| | - R Couderc
- Sorbonne University, AP-HP, Armand Trousseau Children Hospital, Biochemistry Department, Allergy & Environment Team, Paris, France
| | - I Swoboda
- The Molecular Biotechnology Section, FH Campus Wien, University of Applied Sciences, Vienna, Austria
| | - C Hilger
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - A Kuehn
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Y Chantran
- Sorbonne University, AP-HP, Armand Trousseau Children Hospital, Immunology Department, Allergology Sector, Paris, France
| | - S Yen-Nicolaÿ
- Proteomic Facility-UMS IPSIT, Paris-Saclay University, Orsay, France
| | - T Vrai
- Proteomic Facility-UMS IPSIT, Paris-Saclay University, Orsay, France
| | - G Ruellou
- Proteomic Facility-UMS IPSIT, Paris-Saclay University, Orsay, France
| | - B Baudin
- Sorbonne University, AP-HP, Armand Trousseau Children Hospital, Biochemistry Department, Allergy & Environment Team, Paris, France
| | - P Poncet
- Sorbonne University, AP-HP, Armand Trousseau Children Hospital, Biochemistry Department, Allergy & Environment Team, Paris, France
- Immunology Department, Institut Pasteur, Paris, France
| | - A Nemni
- Children-Adult Allergology Department, Robert Ballanger Hospital, Aulnay-sous-Bois, France
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2
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Baudin B, Bigot É, Bœuf A, Delatour V, Giangrande C, Gruson D, Grzych G, Le Goff C, Mailloux A, Peoc'h K, Piéroni L, Sapin V, Tabalani H, Vaubourdolle M. [Feedback from Euromedlab 2023 for Seniors]. Ann Biol Clin (Paris) 2023; 81:435-447. [PMID: 37791501 DOI: 10.1684/abc.2023.1822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Affiliation(s)
- Bruno Baudin
- Département de Biochimie-Hormonologie-Suivi thérapeutique général- Hôpital Trousseau, DMU BioGeM, APHP Sorbonne Université, Paris, France et Université Paris Saclay, Paris France
| | - Édith Bigot
- Laboratoire de Biochimie, CHU Nantes, Nantes, France
| | - Amandine Bœuf
- Laboratoire national de métrologie et d'essai (LNE), Paris, France
| | - Vincent Delatour
- Laboratoire national de métrologie et d'essai (LNE), Paris, France
| | | | - Damien Gruson
- Laboratoires cliniques, Cliniques Universitaires Saint-Luc, Louvain, Belgique
| | - Guillaume Grzych
- Laboratoire de Biochimie et Biologie moléculaire, CHU de Lille, Lille, France
| | | | - Agnès Mailloux
- Centre National de Référence d'Hémobiologie Plaquettaire, Hôpital Saint Antoine, DMU BioGeM, APHP Sorbonne Université, Paris, France
| | - Katell Peoc'h
- Université Paris Cité, Service de Biochimie, Hôpital Bichat, APHP, Paris et Hôpital Beaujon, APHP, Clichy, France
| | - Laurence Piéroni
- Département de Biochimie-Hormonologie-Suivi thérapeutique général- Hôpital Tenon, DMU BioGeM, APHP Sorbonne Université, Paris, France
| | - Vincent Sapin
- Laboratoire de Biochimie, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Hana Tabalani
- Laboratoire de Biologie, CH de Cannes, Cannes, France
| | - Michel Vaubourdolle
- Département de Biochimie-Hormonologie-Suivi thérapeutique général- Hôpital Saint Antoine, DMU BioGeM, APHP Sorbonne Université, Paris, France
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Taibi L, Bénéteau-Burnat B, Vaubourdolle M, Baudin B. Comparison between radiometry and spectrophotometry for the determination of angiotensin-converting enzyme activity in cerebrospinal fluid. Ann Biol Clin (Paris) 2023; 81:255-261. [PMID: 37329169 DOI: 10.1684/abc.2023.1809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Determination of angiotensin-converting enzyme (ACE) activity in cerebrospinal fluid (CSF) can help for establishing the diagnosis of neurosarcoidosis. We investigated the performance characteristics of two assays for ACE determination in 57 CSF, radiometry with [glycine-1-14C] benzoyl-L-histidyl-L-leucine and spectrophotometry with furylacryloyl-phenylalanyl-L-glycyl-L-glycine (FAPGG) as substrates. We compared both kinetic assays to an ELISA specific for human ACE. Within run and between run imprecisions were 14-17% for radiometry, 6-19% for spectrophotometry and 5-8% for ELISA. The limit of detection was 0.04 U/L for radiometry, 1.0 U/L for spectrophotometry and 0.156 μg/L for ELISA. The limit of quantification was 0.06 U/L for radiometry, 1.5 U/L for spectrophotometry, but not known for ELISA. The domain for quantification was 0.06-4.0 U/L for radiometry, 1.5-24 U/L for spectrophotometry and 0.156-10 μg/L for ELISA. Deming regression and Bland-Altman plots show good correlations between the three assays, but with high slopes, because both kinetic assays use different substrates and ELISA measures ACE molecule but not activity. Radiometry was more sensitive than spectrophotometry, which has a limit of detection above most pathological levels. ELISA could be an alternative to radiometry but only after complete evaluation, determination of normal values and assessment of its clinical value. We claim for standardization of ACE determination as well as in serum as in other biological fluids, in particular CSF.
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Affiliation(s)
- Ludmia Taibi
- Biochimie, Hôpital Saint-Antoine, DMU BioGem, Sorbonne University, 184 rue du faubourg Saint-Antoine, 75571 Paris cedex 12, France
| | - Bénédicte Bénéteau-Burnat
- Biochimie, Hôpital Saint-Antoine, DMU BioGem, Sorbonne University, 184 rue du faubourg Saint-Antoine, 75571 Paris cedex 12, France
| | - Michel Vaubourdolle
- Biochimie, Hôpital Saint-Antoine, DMU BioGem, Sorbonne University, 184 rue du faubourg Saint-Antoine, 75571 Paris cedex 12, France
| | - Bruno Baudin
- Biochimie, Hôpital Armand Trousseau, DMU BioGem, Sorbonne University, 26 rue du Docteur Arnold Netter, 75571 Paris cedex 12, France, INSERM UMR 1193 UFR Pharmacie, Université Paris Saclay, 17 avenue des Sciences 91400 Orsay cedex, France
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Richard A, Charuel É, Cambier S, Turpin M, Baudin B, Moreno JP, Vaillant-Roussel H. Prescription-free consultation: A cross-sectional study in general practice. Therapie 2023:S0040-5957(23)00104-X. [PMID: 37625938 DOI: 10.1016/j.therap.2023.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 03/08/2023] [Revised: 06/26/2023] [Accepted: 07/06/2023] [Indexed: 08/27/2023]
Abstract
PURPOSE In 2005, 10% of consultations in France ended without a prescription. In 2019, a review of the literature found 30 to 70% of prescription-free consultations in Northern Europe and 10 to 22% in Southern Europe and underlined the scarcity of quantitative data. Different factors contribute to this heterogeneity, such as product availability and status, modes of management, distribution channels, clinical practice recommendations, public policies targeting certain classes, etc. The main objective of our study was to quantify the rate of prescription-free consultations in general practice in France in 2021. The secondary objective was to characterize prescription-free consultations and analyze their determinants. METHODS This was a quantitative observational study conducted using self-questionnaires among patients in medical practices in Auvergne. RESULTS Out of 540 questionnaires, the rate of prescription-free consultations was 24% (95% CI [20.11-27.41]). Prescription-free consultations were for prevention, administrative problems, and gestures. The limiting factors are "feeling a need for a medication" (OR=0,006), "not knowing if a medication is needed" (OR=0.11) and "consultations for acute reasons" (OR=0.33). CONCLUSION Acute consultations limit prescription-free consultations. General practitioners (GPs) probably overestimate patients' expectation of drug prescription. The French GP must be supported in their decision to not prescribe drugs. This is a long-term investment of time, to educate patients and avoid new consultations for acute reasons. A tool to help doctors manage non-prescription during acute consultations will be created in a future study in France.
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Affiliation(s)
- Amélie Richard
- Department of General Practice, UFR Medicine and Medical Professions, University of Clermont Auvergne, 28, place Henri-Dunant, 63000 Clermont-Ferrand, France; Research Unit ACCePPT, Clermont Auvergne University, 63000 Clermont-Ferrand, France; Maison de santé pluriprofessionnelle des batignolles (MSP), 63350 Joze, France.
| | - Élodie Charuel
- Department of General Practice, UFR Medicine and Medical Professions, University of Clermont Auvergne, 28, place Henri-Dunant, 63000 Clermont-Ferrand, France; Research Unit ACCePPT, Clermont Auvergne University, 63000 Clermont-Ferrand, France; Maison de santé pluriprofessionnelle des batignolles (MSP), 63350 Joze, France
| | - Sébastien Cambier
- CHU Clermont-Ferrand, DRCI, Biostatistics Unit, 63000 Clermont-Ferrand, France
| | - Manon Turpin
- Department of General Practice, UFR Medicine and Medical Professions, University of Clermont Auvergne, 28, place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - Bruno Baudin
- Department of General Practice, UFR Medicine and Medical Professions, University of Clermont Auvergne, 28, place Henri-Dunant, 63000 Clermont-Ferrand, France
| | - José-Philippe Moreno
- University Multidisciplinary Health Centre of the 3 Provinces, 70122 Champlitte, France; Department of General Practice, Bourgogne Franche-Comté University, 25000 Besançon, France; Chrono-environnement Laboratory, Bourgogne Franche-Comté University, CNRS, UMR 6249, 25000 Besançon, France
| | - Hélène Vaillant-Roussel
- Department of General Practice, UFR Medicine and Medical Professions, University of Clermont Auvergne, 28, place Henri-Dunant, 63000 Clermont-Ferrand, France; Research Unit ACCePPT, Clermont Auvergne University, 63000 Clermont-Ferrand, France
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Iizuka T, Barre A, Rougé P, Charpin D, Scala E, Baudin B, Aizawa T, Sénéchal H, Poncet P. Gibberellin-regulated proteins: Emergent allergens. Front Allergy 2022; 3:877553. [PMID: 36157274 PMCID: PMC9500206 DOI: 10.3389/falgy.2022.877553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
About 10 years ago, a protein family was shown for the first time to contain allergenic members, gibberellin-regulated protein (GRP). The first reported member was from peach, Pru p 7. One can hypothesize that it was not detected before because its physicochemical characteristics overlap with those of lipid transfer protein (LTP), a well-known allergen, or because the exposure to GRP increased due to an increase in the gibberellin phythormone level in plant food, either exogenous or endogenous. Like LTPs, GRPs are small cationic proteins with disulfide bridges, are resistant to heat and proteolytic cleavage, and are involved in the defense of the plant. Besides peach, GRP allergens have been described in Japanese apricot (Pru m 7), sweet cherry (Pru av 7), orange (Cit s 7), pomegranate (Pun g 7), bell pepper (Cap a 7), strawberry (Fra a GRP), and also in pollen with a restriction to Cupressaceae tree family (Cup s 7, Cry j 7, and Jun a 7). IgE cross-reactivities were described between GRPs, and the reported peach/cypress and citrus/cypress syndromes may therefore be explained because of these GRP cross-reactivities. GRPs are clinically relevant, and severe adverse reactions may sometimes occur in association with cofactors. More than 60% and up to 95% sequence identities are calculated between various allergenic GRPs, and three-dimensional models show a cleft in the molecule and predict at least three epitopic regions. The structure of the protein and its properties and the matrix effect in the original allergenic source should be unraveled to understand why, despite the ubiquity of the protein family in plants, only a few members are able to sensitize patients.
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Affiliation(s)
- T. Iizuka
- Protein Science Laboratory, Hokkaido University, Sapporo, Japan
| | - A. Barre
- UMR 152 Pharma-Dev, Toulouse 3 University, Toulouse, France
| | - P. Rougé
- UMR 152 Pharma-Dev, Toulouse 3 University, Toulouse, France
| | | | - E. Scala
- “Clinical and Laboratory Molecular Allergy” Unit, Istituto Dermopatico Dell’Immacolata—IRCCS, Rome, Italy
| | - B. Baudin
- Biochemistry Department, Armand Trousseau Children Hospital, APHP, Paris, France
| | - T. Aizawa
- Protein Science Laboratory, Hokkaido University, Sapporo, Japan
| | - H. Sénéchal
- “Allergy / Environment” Research Team, Armand Trousseau Children Hospital, APHP, Paris, France
| | - P. Poncet
- “Allergy / Environment” Research Team, Armand Trousseau Children Hospital, APHP, Paris, France
- Immunology Department, Institut Pasteur, Paris, France
- Correspondence: P. Poncet
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Boulghobra A, Abar T, Moussa F, Baudin B, Rodriguez D, Pallandre A, Bonose M. Quantification of monoamine biomarkers in cerebrospinal fluid: comparison of a UHPLC-MS/MS method to a UHPLC coupled to fluorescence detection method. Biomed Chromatogr 2022; 36:e5502. [PMID: 36082489 DOI: 10.1002/bmc.5502] [Citation(s) in RCA: 0] [Impact Index Per Article: 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: 06/09/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 11/06/2022]
Abstract
Inborn errors of monoamine neurotransmitter metabolism are rare genetic diseases classified as catecholamine and serotonin metabolism disorders or neurotransmitter transportopathies. To diagnose these orphan diseases, monoamine metabolites have been identified and validated as cerebrospinal fluid (CSF) biomarkers: 5-hydroxy-tryptophane, 5-hydroxy-indol-acetic acid, 3-ortho-methyl-DOPA, homovanillic acid, and 3-methoxy-4-hydroxyphenylglycol. The present work presents a UHPLC-MS/MS method developed for the quantification of these metabolites in CSF and compares it to a previously described UHPLC-FD method. MS/MS detection was performed in positive electrospray ionization and multiple reaction monitoring (MRM) mode. The UHPLC-MS/MS and UHPLC-FD methods were validated in terms of accuracy, linearity, precision, and matrix effect. The lower limits of quantification (LLOQ) were ranging between 0.5 nM and 10 nM and between 1 and 5 nM for the UHPLC-MS/MS method and the UHPLC-FD one, respectively. We verified the applicability of both methods by analyzing 30 CSF samples. The measured concentrations were comparable to the reference values described in the literature. The two methods allowed to distinguish pathological samples from healthy ones for clinical diagnosis. UHPLC-MS/MS and UHPLC-FD methods exhibit very close LLOQs. As UHPLC-MS/MS method is more selective, it allows faster analysis with 6 minutes per run versus 10 minutes for the UHPLC-FD method.
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Affiliation(s)
- Ayoub Boulghobra
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, Orsay, FRANCE
| | - Taous Abar
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, Orsay, FRANCE
| | - Fathi Moussa
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, Orsay, FRANCE
| | - Bruno Baudin
- Services de Neuropédiatrie et de Biochimie, Groupe Hospitalier Trousseau Laroche-Guyon, Paris, France
| | - Diana Rodriguez
- Services de Neuropédiatrie et de Biochimie, Groupe Hospitalier Trousseau Laroche-Guyon, Paris, France
| | - Antoine Pallandre
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, Orsay, FRANCE
| | - Myriam Bonose
- Université Paris-Saclay, CNRS, Institut de Chimie Physique, UMR8000, Orsay, FRANCE
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Baudin B. Epigenetics regulate gene expression of metalloprotease-9 and tissue inhibitor of metalloprotease type 2 in acute coronary syndrome. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.072] [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: 12/01/2022]
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Ben Braiek A, Chahed H, Dumont F, Abdelhak F, Hichem D, Gamra H, Baudin B. Identification of biomarker panels as predictors of severity in coronary artery disease. J Cell Mol Med 2020; 25:1518-1530. [PMID: 33381894 PMCID: PMC7875935 DOI: 10.1111/jcmm.16244] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 03/24/2020] [Revised: 09/23/2020] [Accepted: 11/26/2020] [Indexed: 02/06/2023] Open
Abstract
Matrix metalloproteinases (MMPs) are implicated in atherosclerotic plaque rupture and recondition. Specific tissue inhibitors (TIMPs) control MMP functions. Both MMPs and TIMPs are potential biomarkers of plaque instability. Elevated Apo‐CII and CIII and Apo‐E levels are recognized as cardiovascular disease risk factors. We aimed to establish the best blood biomarker panel to evaluate the coronary artery disease (CAD) severity. Plasma levels of MMP‐3 and MMP‐9, TIMP‐1 and TIMP‐2, Apo‐CII, Apo‐CIII and Apo‐E were measured in 472 patients with CAD evaluated by coronary angiography and electrocardiography, and in 285 healthy controls. MMP‐3 and MMP‐9 plasma levels in CAD patients were significantly increased (P < 0.001) compared to controls (3.54‐ and 3.81‐fold, respectively). Furthermore, these increments are modulated by CAD severity as well as for Apo‐CII and Apo‐CIII levels (P < 0.001). TIMPs levels were decreased in CAD versus controls (P < 0.001) and in inverse correlation to MMPs. Standard ROC curve approach showed the importance of panels of biomarkers, including MMP‐3, MMP‐9, TIMP‐1, TIMP‐2, Apo‐CII and Apo‐CIII, for disease aggravation diagnosis. A high area under curve (AUC) value (0.995) was reached for the association of MMP‐9, TIMP‐2 and Apo‐CIII. The unbalance between MMPs and TIMPs in vascular wall and dyslipidaemia creates favourable conditions for plaque disruption. Our study suggests that the combination of MMP‐9, TIMP‐2 and Apo‐CIII values (‘CAD aggravation panel’) characterizes the severity of CAD, that is electrophysiological state, number of involved vessels, stent disposal and type of stent.
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Affiliation(s)
- Assia Ben Braiek
- Service de Biochimie, DMU BioGem, Hôpital Saint-Antoine, Paris, Sorbonne Université, Paris, France.,Molecular Biology Departments, Faculty of Pharmacy, Monastir University, Monastir, Tunisia.,UMS IPSIT - UFR Pharmacie, Université Paris-Saclay, Chatenay-Malabry, France
| | - Hinda Chahed
- Molecular Biology Departments, Faculty of Pharmacy, Monastir University, Monastir, Tunisia
| | - Florent Dumont
- UMS IPSIT - UFR Pharmacie, Université Paris-Saclay, Chatenay-Malabry, France
| | - Fodha Abdelhak
- Department of Cardiology, Fattouma Bourguiba Hospital, Monastir, Tunisia.,Department of Cardiology, Farhat Hached Hospital, Sousse, Tunisia
| | - Denguir Hichem
- Department of Cardiology, Fattouma Bourguiba Hospital, Monastir, Tunisia.,The Regional Hospital Mohamed Ben Sassi, Gabes, Tunisia
| | - Habib Gamra
- Department of Cardiology, Fattouma Bourguiba Hospital, Monastir, Tunisia
| | - Bruno Baudin
- Service de Biochimie, DMU BioGem, Hôpital Saint-Antoine, Paris, Sorbonne Université, Paris, France.,INSERM UMR 1193 - UFR Pharmacie, Université Paris-Saclay, Châtenay-Malabry, France
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Desmons A, Thioulouse E, Hautem JY, Saintier A, Baudin B, Lamazière A, Netter C, Moussa F. Direct liquid chromatography tandem mass spectrometry analysis of amino acids in human plasma. J Chromatogr A 2020; 1622:461135. [DOI: 10.1016/j.chroma.2020.461135] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
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10
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Desmons A, Thioulouse E, Hautem J, Saintier A, Baudin B, Moussa F. Direct quantitative LC-MS/MS analysis of amino acids in plasma. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.152] [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: 11/16/2022]
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11
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Ben Braiek A, Baudin B, Dumont F, Vaubourdolle M, Hamda K, Hassine M, Chahed H. MMP-3, MMP-9, apolipoproteins E, CII AND CIII are markers of aggravation of acute coronary disease (CAD). Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.375] [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: 11/28/2022]
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Ben Braiek A, Baudin B, Delomenie C, Dumont F, Chahed H, Gamra H, Maatouk F. Gene polymorphisms of MMPS-7, -9, -13 and -14 are predictors of aggravation in coronary artery disease? Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.379] [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: 10/28/2022]
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Nekaies Y, Baudin B, Sakly M, Attia N. Plasma proprotein convertase subtilisin/Kexin type 9 (PCSK9) is associated with Lp(a) in non-CAD type 2 diabetic patients. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.197] [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: 12/01/2022]
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14
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Mazoyer E, Baudin B, Lacam S, Varsat B, Drouet LO, Ripoll L. Can High Plasma Ceruloplasmin Levels Cause Acquired Activated Protein C Resistance? Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615013] [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] [Indexed: 10/17/2022]
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Baudin B, Nekaies Y, Baudin B, Kelbousi S, Sakly M, Attia N. Association of apolipoproteins plasma levels with PCSK9 in type 2 diabetes mellitus. Atherosclerosis 2017. [DOI: 10.1016/j.atherosclerosis.2017.06.882] [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: 10/19/2022]
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Taibi L, Boyd A, Bosselut N, Bottero J, Guéchot J, Lacombe K, Lasnier E, Baudin B, Vaubourdolle M. Diagnostic accuracy of the Coopscore © to predict liver fibrosis in human immunodeficiency virus/hepatitis B virus co-infection. Ann Clin Biochem 2017; 55:236-243. [PMID: 28661201 DOI: 10.1177/0004563217707979] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Background Non-invasive methods for assessing liver fibrosis are increasingly used as an alternative to liver biopsy. Recently, a score-based biochemical blood test (Coopscore©) was developed in a cohort of patients chronically infected with hepatitis C virus, showing higher diagnostic performances than Fibrometer®, Fibrotest®, Hepascore® and Fibroscan™. Here, we assess its performance in patients co-infected with the human immunodeficiency virus and hepatitis B virus. Methods Ninety-seven human immunodeficiency virus/hepatitis B virus co-infected patients with liver biopsies were included from a previously described cohort. Histological fibrosis staging using METAVIR criteria was used as the reference. Coopscore©, Fibrotest®, Fibrometer®, Hepascore® and Zeng score were computed and compared with the Coopscore© using the Obuchowski index and area under the receiving operator characteristic curves. Results The distribution of liver fibrosis levels was as follows: F0-F1 ( n = 42), F2 ( n = 25), F3 ( n = 15) and F4 ( n = 15). The Obuchowski index was higher for Coopscore© (0.774) than Fibrometer® (0.668), Hepascore® (0.690) and Zeng scores (0.704) ( P < 0.05), reflecting a better ability to discriminate between fibrosis stages. Similarly, when predicting significant fibrosis (≥F2), the AUROC was significantly greater for the Coopscore© (0.836) than the Hepascore® (0.727) and Zeng scores (0.746), but not for the Fibrotest® (0.778, P = 0.14) or Fibrometer® (0.790, P = 0.19). The Coopscore© did not show a higher capacity than other scores to predict advanced fibrosis (≥F3) or cirrhosis (F4). Conclusions This study supports the diagnostic value of the Coospcore© in fibrosis staging among human immunodeficiency virus/hepatitis B virus co-infected patients, especially to predict significant fibrosis.
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Affiliation(s)
- Ludmia Taibi
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Anders Boyd
- 2 INSERM, UMR_S1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France
| | - Nelly Bosselut
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France.,3 INSERM, UMR-S 938, F-75012, Paris, France
| | - Julie Bottero
- 4 Service des Maladies Infectieuses et Tropicales, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - Jérôme Guéchot
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Karine Lacombe
- 2 INSERM, UMR_S1136, Institut Pierre Louis d'Epidémiologie et de Santé Publique, Paris, France.,5 Institut Pierre Louis d'Epidémiologie et de Santé Publique, Sorbonne Universités, Paris, France
| | - Elisabeth Lasnier
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Bruno Baudin
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
| | - Michel Vaubourdolle
- 1 Pôle de Biologie Médicale et Pathologie, Hôpitaux Universitaire de l'Est Parisien, site Saint-Antoine, Paris, France
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Hadjadj J, Dechartres A, Chapron T, Assala M, Salah S, Dunogué B, Musset L, Baudin B, Groh M, Blanche P, Mouthon L, Monnet D, Le Jeunne C, Brézin A, Terrier B. Relevance of diagnostic investigations in patients with uveitis: Retrospective cohort study on 300 patients. Autoimmun Rev 2017; 16:504-511. [DOI: 10.1016/j.autrev.2017.03.006] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Accepted: 02/19/2017] [Indexed: 11/16/2022]
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Chalghoum A, Noichri Y, Dandana A, Baudin B, Miled A, Ferchichi S. Pathological interactions between the endothelin-1 and the angiotensin- converting enzyme among Tunisian coronary patients. BMC Cardiovasc Disord 2016; 16:244. [PMID: 27894250 PMCID: PMC5127035 DOI: 10.1186/s12872-016-0417-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 02/12/2016] [Accepted: 11/16/2016] [Indexed: 11/29/2022] Open
Abstract
Background The correct understanding of the biochemical and metabolic interactions between coronary risk factors contribute to the exploration of cardiovascular pathophysiology and improves therapeutic care. The aim of this study was to explore the endothelin-1 (ET-1) concentration and the angiotensin converting enzyme (ACE) activity among Tunisian patients with coronary heart disease, and to investigate the metabolic relationships between these two markers,… and to assess the possible relationship between them and the different risk factors. In this present study, ET-1 concentration was determined by an analytical method (High Performance Chromatography, coupled by Mass Spectrometry), ACE activity was measured by a kinetic method for patients and healthy controls. These subjects (157 patients and 142 controls) beneficed also by a biochemical exploration (lipid, apolipoproteins and glucose profiles) to quantify cardiovascular risk. Results A statistically significant increase of the ET-1 concentration was found among patients compared to healthy controls (15.2 ± 5.3 nM vs 7.1 ± 2.7 nM, p < 0,00001). For the ACE activity, in spite the treatment of the majority of patients (97%) with ACE inhibitors, this activity was statistically elevated in patients compared to healthy subjects (86.7 ± 25.4 IU/L vs 42.8 ± 12.1 IU/L, p < 0.00001). Furthermore, a statistically positive correlation was identified between these two cardiac markers (r = 0.68 p < 0.00001). Conclusion The study of the metabolic relationship between the ET-1 and ACE among coronary patients reveals other therapeutics targets.
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Affiliation(s)
- Abdelkader Chalghoum
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia. .,Valorization and Technology Transfer Space, Center of Biotechnology of Borj Cedria, 2050, HamamLif, Tunisia.
| | - Yosri Noichri
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Azza Dandana
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Bruno Baudin
- Department of Biochemistry, Saint-Antoine Hospital, 184 Street Faubourg Saint-Antoine, 75571, Paris, Cedex 12, France
| | - Abdelhédi Miled
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Salima Ferchichi
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
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Nekaies Y, Baudin B, Kalbousi S, Sakly M, Attia N. Oxidized low-density lipoproteins and lectin-like oxidized LDL receptor-1 are positively associated to PCSK9 in type 2 diabetes mellitus. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.580] [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: 11/24/2022]
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Chalghoum A, Noichri Y, Dandana A, Azaiez S, Baudin B, Jeridi G, Miled A, Ferchichi S. Relationship between the A(8002)G intronic polymorphism of pre-pro-endothelin-1 gene and the endothelin-1 concentration among Tunisian coronary patients. BMC Cardiovasc Disord 2015; 15:152. [PMID: 26573609 PMCID: PMC4647662 DOI: 10.1186/s12872-015-0142-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 10/19/2015] [Indexed: 01/31/2023] Open
Abstract
Background Acute coronary syndromes (ACS) are complex and polygenic diseases which are a real problem of public health. These syndromes require multidisciplinary studies to understand the pathogenesis mechanisms. Our study aims to evaluate the endothelin-1 (ET-1) serum concentration in Tunisian coronary compared to controls healthy, as well as the study of the impact of an intronic polymorphism A (8002) G of pre-pro-endothelin-1 Gene (inactive precursor of ET-1) on the change in serum endothelin-1 and in the susceptibility to Acute coronary syndrome (SCA). Methods Our samples were subdivided into coronary patients (157) and healthy subjects (142). The quantification of the ET-1 concentration was performed by high performance liquid chromatography, the identification of the different genotypes of the polymorphism A(8002)G was made by PCR-RFLP. The association between the ET-1 concentration and identified genotypes was realized by adapted software for descriptive statistics, Statistical Package for the Sociological Sciences (SPSS v 21.0). Results Our study showed that the concentration of ET-1 was significantly higher in patients compared to controls and that the mutated allele prevails in patients F (G) = 0.78 and there is a minority in controls F (G) = 0.3. Secondly the homozygous genotype GG is associated with higher concentrations of ET-1 in patients and controls, heterozygous genotype AG is associated with intermediaries’ values and AA genotype is related to lower values. Conclusion Although the polymorphism studied is an intronic polymorphism, it is involved in the change in serum concentration of ET-1 and is a candidate gene in susceptibility to SCA. Cardiovascular diseases are “polygenic” pathology and do not obey of the law for transmission of Mendel.
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Affiliation(s)
- Abdelkader Chalghoum
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia. .,Valorization and Research Support Space, Center of Biotechnology, Borj Cedria, 2050, Hammam Lif, Tunisia.
| | - Yosri Noichri
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Azza Dandana
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Sana Azaiez
- Valorization and Research Support Space, Center of Biotechnology, Borj Cedria, 2050, Hammam Lif, Tunisia
| | - Bruno Baudin
- Department of Biochemistry, Saint-Antoine Hospital, 184 Faubourg Saint-Antoine, 75571, Paris Cedex 12, France
| | - Gouider Jeridi
- Department of Cardiology, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Abdelhédi Miled
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Salima Ferchichi
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
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Nekaies Y, Baudin B, Kelbousi S, Sakly M, Attia N. Plasma proprotein convertase subtilisin/kexin type 9 is associated with Lp(a) in type 2 diabetic patients. J Diabetes Complications 2015; 29:1165-70. [PMID: 26412029 DOI: 10.1016/j.jdiacomp.2015.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2015] [Revised: 08/07/2015] [Accepted: 08/07/2015] [Indexed: 10/23/2022]
Abstract
AIM Recent in vitro researches have shown that plasma Lp(a) can be reduced using a proprotein convertase subtilisin/kexin type 9 (PCSK9)-inhibitory monoclonal antibody. In our clinical study we tried to investigate the association between plasma Lp(a) and PCSK9 in Type 2 diabetic patients with elevated plasma Lp(a), and to check whether such an association would be related to LDL-receptor (LDL-R) levels. METHODS Plasma PCSK9 and LDL-R concentrations were measured by sandwich ELISA methods using recombinant human PCSK9 protein and LDL-R protein as standards in a cohort with type 2 diabetic patients (n=50) compared to an age- and sex-matched control group (n=50). Both clinical and biochemical parameters were determined in all patients. RESULTS Plasma PCSK9 level was significantly elevated in T2DM patients compared to controls (44.61±14.44 and 33.22±11.79ng/mL, respectively, P<0.0001). However LDL-R levels did not differ between the two groups. Remarkably, plasma PCSK9 levels were positively correlated with Lp(a) levels in whole population (r=+0.227, P=0.03) as well as in T2DM group (r=+0.398, P=0.0061) but not in control group. Multiple linear regression analysis showed that plasma Lp(a) levels were independently associated to those of PCSK9. CONCLUSION Lp(a) has been proposed as a contributing factor to the accelerated development of macrovascular complications in T2DM. Its synergic effect with PCSK9 may explain the enhanced atherogenicity in T2DM patients.
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Affiliation(s)
- Ymène Nekaies
- UR11ES33'Integrated Physiology', Faculty of Sciences of Bizerte, Carthage University, Tunisia
| | - Bruno Baudin
- Biochemistry Department, Biology and Pathology Pole HUEP, Saint-Antoine Hospital, Paris and UMR INSERM S1193, Faculty of Pharmacy - Paris Sud University, Châtenay-Malabry, France
| | - Sami Kelbousi
- Internal Medicine Department, Regional Hospital of Bizerte, Tunisia
| | - Mohsen Sakly
- UR11ES33'Integrated Physiology', Faculty of Sciences of Bizerte, Carthage University, Tunisia
| | - Nebil Attia
- UR11ES33'Integrated Physiology', Faculty of Sciences of Bizerte, Carthage University, Tunisia.
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Chalghoum A, Noichri Y, Karkouch I, Dandana A, Baudin B, Jeridi G, Ferchichi S, Miled A. Metabolic interactions between hyperhomocysteinemia and endothelin-1 among Tunisian patients with acute coronary diseases. Biol Res 2015; 48:32. [PMID: 26103962 PMCID: PMC4482036 DOI: 10.1186/s40659-015-0018-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 02/13/2015] [Accepted: 05/20/2015] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Acute coronary syndromes (ACS) are complex and polygenic diseases which are a real problem of public health. These syndromes require multidisciplinary studies to understand the pathogenesis mechanisms and metabolic interactions between different risk factors.This study aimed to explore the variation of two coronary risk parameters not mentioned by Framingham cohorts, hyperhomocysteinemia and endothelin-1 (ET-1) in Tunisian coronary and the study of the variation of these parameters based on various cardiac risk factors and metabolic relationship between them.To 157 coronary and 142 healthy subjects, the concentration of homocysteine was quantified by fluorescence polarization immunoassay; the concentration of ET-1 was measured by an analytical technique, the High Performance Liquid Chromatography (HPLC) coupled with mass spectrometry. RESULTS Our study showed that homocysteine and ET-1 were significantly higher in patients compared to healthy subjects (24.40 ± 12.5 μmol/L vs 7.44 ± 2.5 μmol/L p <0.00001) for homocysteine and (15.2 ± 5.3 nmol/L vs 7.1 ± 2.7 nmol/L, p <0.00001) for ET-1. On the other hand, homocysteine varies according to tobacco and diabetes while ET-1 depends on the sex, hypertension, smoking, obesity and dyslipidemia and a statistically negative correlation was shown between homocysteine and ET-1 in coronary patients (r = -0.66 p <0.00001). CONCLUSION The study of the variation of these two parameters in coronary patients and metabolic exploration of the relationship between homocysteine and ET-1 according to various risk factors and the interactions between themselves facilitates the decision of therapeutic treatment.
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Affiliation(s)
- Abdelkader Chalghoum
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia. .,Valorization and Research Support Space, Biotechnology Center of Borj Cedria, 2052, Hamam Lif, Tunisia.
| | - Yosri Noichri
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Ines Karkouch
- Valorization and Research Support Space, Biotechnology Center of Borj Cedria, 2052, Hamam Lif, Tunisia
| | - Azza Dandana
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Bruno Baudin
- Department of Biochemistry, Saint-Antoine Hospital, 184 Faubourg Saint-Antoine, 75571, Paris, Cedex 12, France
| | - Guieder Jeridi
- Department of Cardiology, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Salima Ferchichi
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
| | - Abdelhédi Miled
- Laboratory of Biochemistry, Farhat HACHED Hospital, Street Doctor Moreau, 4000, Sousse, Tunisia
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Benhamou Y, Boelle PY, Baudin B, Ederhy S, Gras J, Galicier L, Azoulay E, Provôt F, Maury E, Pène F, Mira JP, Wynckel A, Presne C, Poullin P, Halimi JM, Delmas Y, Kanouni T, Seguin A, Mousson C, Servais A, Bordessoule D, Perez P, Hamidou M, Cohen A, Veyradier A, Coppo P. Cardiac troponin-I on diagnosis predicts early death and refractoriness in acquired thrombotic thrombocytopenic purpura. Experience of the French Thrombotic Microangiopathies Reference Center. J Thromb Haemost 2015; 13:293-302. [PMID: 25403270 DOI: 10.1111/jth.12790] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Indexed: 08/31/2023]
Abstract
BACKGROUND Cardiac involvement is a major cause of mortality in patients with thrombotic thrombocytopenic purpura (TTP). However, diagnosis remains underestimated and delayed, owing to subclinical injuries. Cardiac troponin-I measurement (cTnI) on admission could improve the early diagnosis of cardiac involvement and have prognostic value. OBJECTIVES To assess the predictive value of cTnI in patients with TTP for death or refractoriness. PATIENTS/METHODS The study involved a prospective cohort of adult TTP patients with acquired severe ADAMTS-13 deficiency (< 10%) and included in the registry of the French Reference Center for Thrombotic Microangiopathies. Centralized cTnI measurements were performed on frozen serum on admission. RESULTS Between January 2003 and December 2011, 133 patients with TTP (mean age, 48 ± 17 years) had available cTnI measurements on admission. Thirty-two patients (24%) had clinical and/or electrocardiogram features. Nineteen (14.3%) had cardiac symptoms, mainly congestive heart failure and myocardial infarction. Electrocardiogram changes, mainly repolarization disorders, were present in 13 cases. An increased cTnI level (> 0.1 μg L(-1) ) was present in 78 patients (59%), of whom 46 (59%) had no clinical cardiac involvement. The main outcomes were death (25%) and refractoriness (17%). Age (P = 0.02) and cTnI level (P = 0.002) showed the greatest impact on survival. A cTnI level of > 0.25 μg L(-1) was the only independent factor in predicting death (odds ratio [OR] 2.87; 95% confidence interval [CI] 1.13-7.22; P = 0.024) and/or refractoriness (OR 3.03; 95% CI 1.27-7.3; P = 0.01). CONCLUSIONS A CTnI level of > 0.25 μg L(-1) at presentation in patients with TTP appears to be an independent factor associated with a three-fold increase in the risk of death or refractoriness. Therefore, cTnI level should be considered as a prognostic indicator in patients diagnosed with TTP.
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Affiliation(s)
- Y Benhamou
- Service de Médecine Interne, CHU Charles Nicolle, Rouen, France; Inserm U1096, Rouen, France; Centre de Référence des Microangiopathies Thrombotiques, Hôpital Saint-Antoine, AP-HP, Paris, France
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Benhamou Y, Boelle P, Baudin B, Ederhy S, Galicier L, Azoulay E, Hamidou M, Veyradier A, Coppo P. Le dosage de la troponine-I au diagnostic est prédictif de la survenue de décès et d’une forme réfractaire dans le purpura thrombotique thrombocytopénique acquis de l’adulte : expérience du Centre national des microangiopathies thrombotiques. Rev Med Interne 2014. [DOI: 10.1016/j.revmed.2014.10.140] [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: 11/28/2022]
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Lang S, Ederhy S, Boyer-Chatenet L, Haddour N, Soulat-Dufour L, Fleury G, Baudin B, Raffi H, Boccara F, Cohen A. Copeptin levels are associated with cardiovascular events in patients with non valvular atrial fibrillation. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4063] [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: 11/14/2022] Open
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Toumi ML, Merzoug S, Baudin B, Tahraoui A. Quercetin alleviates predator stress-induced anxiety-like and brain oxidative signs in pregnant rats and immune count disturbance in their offspring. Pharmacol Biochem Behav 2013; 107:1-10. [PMID: 23541492 DOI: 10.1016/j.pbb.2013.03.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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: 11/02/2012] [Revised: 02/28/2013] [Accepted: 03/16/2013] [Indexed: 11/30/2022]
Abstract
This study was performed in rats to investigate the effect of a psychogenic stress during late gestation on the immediate behavior and brain oxidative status in dams as well as on the immune cell counts in their offspring up to weaning. Besides, the ability of quercetin (a natural flavonoid) to prevent stress effects was evaluated. Quercetin was orally administered for 6 consecutive days before the pregnant rats were acutely exposed to predator stress on gestational day 19. Post-stress corticosterone level, brain oxidative stress parameters and anxiety-like behavior were assessed in dams, whereas immune cell counts were postnatally determined in both male and female pups. Predator stress caused an oxidative stress in the brain and elicited an elevation in plasma corticosterone with concomitant behavioral impairment in dams. Prenatally-stressed pups mainly showed a decrease in total leukocytes and lymphocytes along with monocytosis and granulocytosis, but these changes were sex-dependent throughout the postnatal period studied. Quercetin pretreatment blocked the stress-induced corticosterone release and alleviated the brain oxidative stress with the maternal anxiety measures being slightly attenuated, whereas its effects on the offspring immune cell counts were mostly revealed at birth. Our findings suggest that late gestational exposure to traumatic events may cause anxiety symptoms in dams, in which corticosterone and brain oxidative stress play a certain role, and trigger negative immune changes in the early postnatal life of progeny. Notably, quercetin intake before such adverse events seems to be beneficial against negative outcomes in both dams and offspring.
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Affiliation(s)
- Mohamed Lamine Toumi
- Laboratoire de Neuro-endocrinologie Appliquée, Département de Biologie, Université Badji Mokhtar, BP 12, 23000 Annaba, Algeria.
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Noichri Y, Chalghoum A, Chkioua L, Baudin B, Ernez S, Ferchichi S, Miled A. Low erythrocyte catalase enzyme activity is correlated with high serum total homocysteine levels in Tunisian patients with acute myocardial infarction. Diagn Pathol 2013; 8:68. [PMID: 23631751 PMCID: PMC3651277 DOI: 10.1186/1746-1596-8-68] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [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: 01/01/2013] [Accepted: 04/16/2013] [Indexed: 12/13/2022] Open
Abstract
Background An imbalance between pro-oxidants and antioxidant systems has been suggested to be implicated in the physiopathology of acute myocardial infarction (AMI). We aimed to evaluate the antioxidant capacity in Tunisian patients and to assess the possible relationship between erythrocyte catalase enzyme activity and hyperhomocysteinaemia. Methods 108 patients with AMI and 81 healthy subjects were enrolled in this study. Catalase erythrocyte enzyme activity was determined spectrophotometrically whereas “total antioxidant status” (TAS) concentration was measured by a commercially available method. Serum total homocysteine (tHcy) level was determined by a fluorescence polarization immunoassay (FPIA). Lipid peroxidation was measured with a fluorimetric method as “thiobarbituric acid reactive substances” (TBARS). Results Compared with healthy subjects, patients with AMI had significantly lower catalase activity (P<0.001), TAS concentrations (P<0.001), and significantly higher serum tHcy (P<0.001) and TBARS levels (P<0.001). Erythrocyte catalase enzyme activity was negatively correlated with serum tHcy and TBARS while serum tHcy and TBARS were in positive correlation. Furthermore, the unbalance between pro-oxidants and antioxidants seems to be more aggravated in patients with Q wave AMI compared to patients with non-Q wave AMI. Conclusion Our results suggest the involvement of hyperhomocysteinaemia in the drop of erythrocyte catalase activity related to myocardial ischemia reperfusion. Hyperhomocysteinaemia may increase the myocardial wall dysfunction under ischemia reperfusion by excessive production of reactive oxygen species which is made evident by increased lipid peroxidation. Virtual slides The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/1623509866881834
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Affiliation(s)
- Yosri Noichri
- Biochemistry Laboratory CHU Farhat HACHED, Street Doctor Moreau, 4000 Sousse, Tunisia.
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Chalghoum A, Noichri Y, Mohamed MH, Dandana A, Baudin B, Ferchichi S, Miled A. The pro-oxidant effect of angiotensin-1 converting enzyme in Tunisian patients with coronary heart disease. Acta Biomed 2012; 83:202-207. [PMID: 23762996] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
BACKGROUND Evaluation and investigation of the pro-oxidant role of the angiotensin-1 converting enzyme among Tunisian coronary. MATERIALS AND METHODS In the present study the angiotensin-1 converting enzyme (ACE1) was determined by a kinetic method for coronary and witness populations. These subjects (117 patients and 86 controls) beneficed also by an enzymatic determination of superoxide dismutase (SOD), glutathione peroxidase (GPx) and total antioxidant status (TAS) to reveal the atherogenic effects of these radical species and investigate their interactions with ACE1. RESULTS. The determination of ACE1 activity showed a significant increase in patients compared to controls (82.24 +/- 21.6 vs 49.23 +/- 12.85 UI/L, p <0.000001). Statistical tests have shown negative correlations between the ACE 1 activity and the antioxidant defense markers (SOD, GPx and TAS). CONCLUSION In addition to its vasoconstrictor role, ACE1 can be considered as a pro-oxidant enzyme, these two effects combine in the genesis and the complications of cardiovascular diseases. (www.actabiomedica.it)
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Bosselut N, Taibi L, Guéchot J, Zarski JP, Sturm N, Gelineau MC, Poggi B, Thoret S, Lasnier E, Baudin B, Housset C, Vaubourdolle M. Including osteoprotegerin and collagen IV in a score-based blood test for liver fibrosis increases diagnostic accuracy. Clin Chim Acta 2012; 415:63-8. [PMID: 23022619 DOI: 10.1016/j.cca.2012.09.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Revised: 09/18/2012] [Accepted: 09/19/2012] [Indexed: 01/06/2023]
Abstract
BACKGROUND Noninvasive methods for liver fibrosis evaluation in chronic liver diseases have been recently developed, i.e. transient elastography (Fibroscan™) and blood tests (Fibrometer®, Fibrotest®, and Hepascore®). In this study, we aimed to design a new score in chronic hepatitis C (CHC) by selecting blood markers in a large panel and we compared its diagnostic performance with those of other noninvasive methods. METHODS Sixteen blood tests were performed in 306 untreated CHC patients included in a multicenter prospective study (ANRS HC EP 23 Fibrostar) using METAVIR histological fibrosis stage as reference. The new score was constructed by non linear regression using the most accurate biomarkers. RESULTS Five markers (alpha-2-macroglobulin, apolipoprotein-A1, AST, collagen IV and osteoprotegerin) were included in the new function called Coopscore©. Using the Obuchowski Index, Coopscore© shows higher diagnostic performances than for Fibrometer®, Fibrotest®, Hepascore® and Fibroscan™ in CHC. Association between Fibroscan™ and Coopscore© might avoid 68% of liver biopsies for the diagnosis of significant fibrosis. CONCLUSION Coopscore© provides higher accuracy than other noninvasive methods for the diagnosis of liver fibrosis in CHC. The association of Coopscore© with Fibroscan™ increases its predictive value.
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Affiliation(s)
- Nelly Bosselut
- Laboratoire de Biochimie A, Hôpitaux Universitaires Paris-Est, site Saint-Antoine, AP-HP, F-75012, Paris, France.
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Tolédano C, Gain M, Kettaneh A, Baudin B, Johanet C, Chérin P, Rivière S, Cabane J, Tiev KP. Aldolase predicts subsequent myopathy occurrence in systemic sclerosis. Arthritis Res Ther 2012; 14:R152. [PMID: 22726824 PMCID: PMC3446538 DOI: 10.1186/ar3888] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [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: 02/13/2012] [Revised: 05/12/2012] [Accepted: 06/22/2012] [Indexed: 11/10/2022] Open
Abstract
Introduction Myopathy related to systemic sclerosis (Myo-SSc) is a disabling and unpredictable complication of SSc. We assessed the predictive value of serum aldolase, creatine kinase (CK), alanine transaminase (ALT), aspartate transaminase (AST) and C-reactive protein (CRP) to estimate the risk of developing Myo-SSc. Methods We enrolled 137 SSc patients without proximal muscle weakness in a prospective monocentric study to follow them longitudinally over a four-year period. The risk of occurrence of Myo-SSc was ascertained according to the European NeuroMuscular Centre criteria and was analyzed according to levels of plasma aldolase, CK, transaminase enzymes and CRP at inclusion. Performance of each parameter to predict Myo-SSc occurrence was assessed and compared with the others. Results The area under the receiver operating characteristic curves (ROC) of plasma aldolase for Myo-SSc occurrence prediction was 0.80 (95% CI: 0.67 to 0.94, P < 0.001), which was higher than that of plasma CK (0.75, P = 0.01), and that of ALT (0.63, P = 0.04). AST and CRP had no predictive value for Myo-SSc occurrence. The best cut-off of aldolase for prediction of Myo-SSc occurrence within three years after inclusion was 9 U/L and higher than the upper normality limit (7 U/L), unlike that of CK and ALT. Myo-SSc occurred more frequently in patients whose plasma aldolase was higher than 9 U/L. Adjusted Hazard Ratio for patients with aldolase > 9 U/L was 10.3 (95% CI: 2.3 to 45.5), P < 0.001. Conclusions Increased plasma aldolase level accurately identified SSc patients with high risk to develop subsequent Myo-SSc. This could help initiate appropriate treatment when the disabling muscle damage is still in a reversible stage.
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Affiliation(s)
- Cécile Tolédano
- University Paris VI, AP-HP, Saint Antoine Hospital, 184 rue du Faubourg Saint-Antoine, 75571 Paris Cedex 12, France
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Froidevaux-Klipfel L, Poirier F, Boursier C, Crépin R, Poüs C, Baudin B, Baillet A. Modulation of septin and molecular motor recruitment in the microtubule environment of the Taxol-resistant human breast cancer cell line MDA-MB-231. Proteomics 2011; 11:3877-86. [PMID: 21761557 DOI: 10.1002/pmic.201000789] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 06/08/2011] [Accepted: 07/05/2011] [Indexed: 01/09/2023]
Abstract
Cell resistance to low doses of paclitaxel (Taxol) involves a modulation of microtubule (MT) dynamics. We applied a proteomic approach based on 2-DE coupled with MS to identify changes in the MT environment of Taxol-resistant breast cancer cells. Having established a proteomic pattern of the microtubular proteins extracted from MDA-MB-231 cells, we verified by Western blotting that in resistant cells, α- and β-tubulins (more specifically the βIII and βIV isotypes) increased. Interestingly, four septins (SEPT2, 8, 9 and 11), which are GTPases involved in cytokinesis and in MT/actin cytoskeleton organization, were overexpressed and enriched in the MT environment of Taxol-resistant cells compared to their sensitive counterpart. Changes in the MT proteome of resistant cells also comprised increased kinesin-1 heavy chain expression and recruitment on MTs while dynein light chain-1 was downregulated. Modulation of motor protein recruitment around MTs might reflect their important role in controlling MT dynamics via the organization of signaling pathways. The identification of proteins previously unknown to be linked to taxane-resistance could also be valuable to identify new biological markers of resistance.
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Mehri S, Mahjoub S, Zaroui A, Mechmeche R, Baudin B, Hammami M. 601 CC GENOTYPE OF THE ANGIOTENSIN II TYPE I RECEPTOR GENE PREDICTS ACUTE MYOCARDIAL INFARCTION IN A TUNISIAN. ATHEROSCLEROSIS SUPP 2011. [DOI: 10.1016/s1567-5688(11)70602-x] [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: 11/24/2022]
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Mehri S, Mahjoub S, Finsterer J, Zaroui A, Mechmeche R, Baudin B, Hammami M. The CC genotype of the angiotensin II type I receptor gene independently associates with acute myocardial infarction in a Tunisian population. J Renin Angiotensin Aldosterone Syst 2011; 12:595-600. [DOI: 10.1177/1470320310391833] [Citation(s) in RCA: 8] [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: 11/17/2022] Open
Abstract
Acute myocardial infarction (AMI) is a multifactorial disease influenced by environmental and genetic factors. The aim of this study was to assess the association of angiotensin II type 1 receptor (ATR1) gene polymorphisms with AMI as well as to evaluate the role of serum angiotensin-converting enzyme (ACE) activity and that of cardiac troponin I (cTnI) in Tunisian AMI patients. One hundred and eighteen AMI patients were compared to 150 healthy controls. ATR1 genotypes were determined by polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP). The ATR1 A1166C polymorphism was significantly associated with AMI ( p = 0.024). CC genotype and C allele frequencies were associated with increased AMI risk [CC vs. AC and AA: OR = 2.06; p = 0.045; 95 % CI (1.02–4.18); C vs. A: OR = 1.68; p = 0.004; 95 % CI (1.17–2.41)]. By multivariate logistic regression analysis, CC genotype, hypertension, diabetes, serum ACE activity and peak-cTnI were significant independent predictors of AMI. Increased serum ACE activity and cTnI peak levels were associated with the CC genotype in AMI patients. In conclusion, the ATR1 A1166C polymorphism is associated with AMI and the CC genotype associated with increased ACE activity and cTnI levels appear to predispose for AMI risk.
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Affiliation(s)
- Sounira Mehri
- Laboratoire de Biochimie, UR Human Nutrition and Metabolic Disorders, Faculté de Médecine de Monastir, Tunisie
- Unité de Recherche, Epidémiologie Génétique et Moléculaire, Faculté de Médecine de Tunis, Tunisie
| | - Sinda Mahjoub
- Unité de Recherche, Epidémiologie Génétique et Moléculaire, Faculté de Médecine de Tunis, Tunisie
| | - Josef Finsterer
- Krankenanstalt Rudolfstiftung Vienne et Université de Danube Krems, Autriche
| | - Amira Zaroui
- Service des Explorations Fonctionnelles Cardiologiques, Hôpital La Rabta de Tunis, Tunisie
| | - Rachid Mechmeche
- Service des Explorations Fonctionnelles Cardiologiques, Hôpital La Rabta de Tunis, Tunisie
| | - Bruno Baudin
- Service de Biochimie A, Hôpital Saint-Antoine, Paris, France
| | - Mohamed Hammami
- Laboratoire de Biochimie, UR Human Nutrition and Metabolic Disorders, Faculté de Médecine de Monastir, Tunisie
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Bosselut N, Housset C, Marcelo P, Rey C, Burmester T, Vinh J, Vaubourdolle M, Cadoret A, Baudin B. Distinct proteomic features of two fibrogenic liver cell populations: Hepatic stellate cells and portal myofibroblasts. Proteomics Clin Appl 2010. [DOI: 10.1002/prca.201090036] [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: 11/11/2022]
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Mehri S, Mahjoub S, Farhati A, Bousaada R, Ben Arab S, Baudin B, Hammami M. Angiotensinogen gene polymorphism in acute myocardial infarction patients. J Renin Angiotensin Aldosterone Syst 2010; 12:42-7. [DOI: 10.1177/1470320310376425] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Introduction. The objective of the study was to explore the role of a genetic variant of angiotensinogen (AGT), M235T, as an independent risk factor for acute myocardial infarction (AMI) and to investigate the possible association with the severity of coronary artery disease (CAD), estimated on the basis of the number of coronary stenoses and critical arterial occlusions. Patients and methods. 123 AMI patients were compared to 144 healthy controls. AGT genotypes were determined by PCR. Results. A significant association was found between AGT M235T polymorphism and AMI ( p = .021). By logistic regression, the TT genotype appeared to confer 1.9-fold increased risk for AMI in both the univariate and the multivariate model. The frequencies of the TT genotype and T allele increased with the number of stenoses in coronary vessels. Moreover, the TT genotype and the T allele were more frequent in the subgroup of patients with stenoses in at least four coronary vessels than in other patients, including subjects with one- to three-vessel disease. Furthermore, the TT genotype and the T allele were significantly more frequent in patients with critical arterial occlusions (> 90%) than in subjects without critical stenoses. Conclusions. The AGT M235T polymorphism associates with AMI risk and influences CAD severity.
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Affiliation(s)
- Sounira Mehri
- Laboratoire de Biochimie 'UR Human Nutrition & Metabolic Disorders', Faculté de Médecine, Monastir, Tunisie, Unité de Recherche 'Epidémiologie Génétique et Moléculaire', Faculté de Médecine de Tunis, Tunisie
| | - Sinda Mahjoub
- Unité de Recherche 'Epidémiologie Génétique et Moléculaire', Faculté de Médecine de Tunis, Tunisie
| | - Abdeljelil Farhati
- Service des Explorations Fonctionnelles Cardiologiques, Hôpital La Rabta de Tunis, Tunisie
| | - Rafik Bousaada
- Service des Explorations Fonctionnelles Cardiologiques, Hôpital La Rabta de Tunis, Tunisie
| | - Saïda Ben Arab
- Unité de Recherche 'Epidémiologie Génétique et Moléculaire', Faculté de Médecine de Tunis, Tunisie
| | - Bruno Baudin
- Service de Biochimie A, Hôpital Saint-Antoine, Paris, France
| | - Mohamed Hammami
- Laboratoire de Biochimie 'UR Human Nutrition & Metabolic Disorders', Faculté de Médecine, Monastir, Tunisie,
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Bosselut N, Housset C, Marcelo P, Rey C, Burmester T, Vinh J, Vaubourdolle M, Cadoret A, Baudin B. Distinct proteomic features of two fibrogenic liver cell populations: hepatic stellate cells and portal myofibroblasts. Proteomics 2010; 10:1017-28. [PMID: 20049859 DOI: 10.1002/pmic.200900257] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [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]
Abstract
In chronic liver diseases, the accumulation of extracellular matrix leading to fibrosis is caused by myofibroblasts, the origins of which are debatable. We performed a comparative proteomic study to identify markers and gain insight into distinct functions of myofibroblasts derived either from hepatic stellate cells (HSCs) or from portal mesenchymal cells. After isolation from normal liver and culture in similar conditions, myofibroblastic HSCs (MF-HSCs) presented enlarged cytoplasms whereas portal myofibroblasts (PMFs) were more proliferative, and formed more stress fibers. The two cell types were subjected to comparative analyses by 2-D MS/MS. Six proteins were overexpressed in PMFs, with myofibroblast-related typical functions. Among them, cofilin-1 showed the greatest difference in expression and a lower pI than expected. Immunoblot demonstrated higher levels of phosphorylation, a modification of the protein implicated in stress fiber formation. Eleven proteins, mostly involved in stress response, were overexpressed in MF-HSCs. Cytoglobin had the highest level of overexpression, as confirmed by reverse transcription quantitative real-time PCR, immunoblot and immunocytochemical analyses. These results identify cytoglobin as the best marker for distinguishing MF-HSCs from PMFs and suggest different functions for the two cell populations in the liver wound healing response, with a prominent role for PMFs in scar formation.
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Affiliation(s)
- Nelly Bosselut
- AP-HP, Hôpital Saint-Antoine, Biochimie A, Paris, France
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Mehri S, Baudin B, Mahjoub S, Zaroui A, Bénéteau-Burnat B, Mechmeche R, Hammami M, Ben Arab S. Angiotensin-converting enzyme insertion/deletion gene polymorphism in a Tunisian healthy and acute myocardial infarction population. Genet Test Mol Biomarkers 2010; 14:85-91. [PMID: 20059382 DOI: 10.1089/gtmb.2009.0105] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
INTRODUCTION The role of the insertion/deletion (I/D) polymorphism in the angiotensin-converting enzyme gene (ACE) on acute myocardial infarction (AMI) is controversial. OBJECTIVES To assess the effect of the ACE I/D polymorphism on AMI compared with the healthy controls and its relationship with serum ACE activity in a Tunisian population. DESIGN AND METHODS A total of 119 patients with AMI were compared with 238 healthy controls from the same geographical area. ACE genotyping was determined by polymerase chain reaction, and serum ACE activity was measured with N-[3-(2-furylacryloyl]-L-phenylalanyl-L-glycyl-L-glycine as substrate. RESULTS The ACE I/D polymorphism was significantly different between patients and controls (p < 0.0001). The frequencies of the DD genotype and the D allele were statistically higher in patients with AMI as compared with the controls and were associated with increased risk of AMI (DD vs. ID and II: odds ratio = 4.27, p < 0.0001, 95% confidence interval = 2.65-6.86; D vs. I: odds ratio = 3.15, p < 0.0001, 95% confidence interval = 2.26-4.40). This association was independent of other cardiovascular risk factors but dyslipidemia (p = 0.002) that was not represented in AMI patients with II genotype and in a lower extent with hypertension (p < 0.05). Serum ACE activity was significantly higher in AMI patients with ACE DD genotype compared with the subjects with ID or II genotype (p = 0.034) and was not correlated with other cardiovascular risk factors. CONCLUSIONS ACE DD genotype associated with higher serum ACE activity is increased in the studied population and might be clinically useful as markers to assess risk for AMI.
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Affiliation(s)
- Sounira Mehri
- Unity of Genetic and Molecular Epidemiology, Faculty of Medicine, Tunis, Tunisia
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Mehri S, Koubaa N, Hammami S, Mahjoub S, Chaaba R, Nakbi A, Zouari B, Abid M, Ben Arab S, Baudin B, Hammami M. Genotypic interactions of renin-angiotensin system genes with diabetes type 2 in a Tunisian population. Life Sci 2010; 87:49-54. [PMID: 20580725 DOI: 10.1016/j.lfs.2010.05.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2009] [Revised: 05/07/2010] [Accepted: 05/18/2010] [Indexed: 10/19/2022]
Abstract
AIMS To explore the role of genetic variants of angiotensinogen (AGT M235T), angiotensin-converting enzyme (ACE I/D), and angiotensin type 1 receptor (AT1R A1166C) as predictors of diabetes risk and to examine their combined effects on type 2 diabetes mellitus (T2DM) patients. MAIN METHODS One hundred and fourteen T2DM patients were compared to 175 healthy controls with similar age and sex. KEY FINDINGS The genotypic frequencies for all three genes alone were significantly associated with increased risk of developing diabetes. Logistic regression analysis of classic coronary risk factors and the genetic polymorphisms demonstrated that hypertension and ACE DD genotype were the most significant contributors to T2DM. For the renin-angiotensin system (RAS) genes, the risk of T2DM in individuals with one risk genotype was 1.9 (95%CI: 1.1-3.0, p=0.017) higher than those with zero risk genotype. Individuals who carried two risk genotypes had a 4.0 (95%CI 1.7-9.4, p=0.001) times higher risk of T2DM than those who did not carry any risk genotypes of the RAS genes. Most interestingly, the risk of T2DM for individuals with three risk genotypes was 26.2 (95%CI: 5.8-117.9, p<0.001) higher than those with zero risk genotype. SIGNIFICANCE The results of the present study imply that genotyping of renin-angiotensin system genes could become an important part of the clinical process of risk identification for T2DM in Tunisian population.
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Affiliation(s)
- Sounira Mehri
- Laboratory of Biochemistry, UR Human Nutrition and Metabolic Disorders, Faculty of Medicine, Avicenne St., 5019 Monastir, Tunisia
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Mehri S, Koubaa N, Nakbi A, Hammami S, Chaaba R, Mahjoub S, Zouari B, Abid M, Ben Arab S, Baudin B, Hammami M. Relationship between genetic polymorphisms of angiotensin-converting enzyme and methylenetetrahydrofolate reductase as risk factors for type 2 diabetes in Tunisian patients. Clin Biochem 2009; 43:259-66. [PMID: 19857476 DOI: 10.1016/j.clinbiochem.2009.10.008] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2009] [Revised: 10/15/2009] [Accepted: 10/16/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND/AIMS The role of methylenetetrahydrofolate reductase (MTHFR) and angiotensin-converting enzyme (ACE) gene polymorphisms as being risk factors for diabetes is still controversial. The aim was to investigate the distribution of ACE and MTHFR genotypes as well as to evaluate the role of plasmatic total homocysteine levels (tHcy) and ACE activity in Tunisian patients with type 2 diabetes mellitus (T2DM). DESIGN AND METHODS 115 T2DM patients compared to 116 healthy volunteers. RESULTS The ACE I/D polymorphism was significantly associated with diabetes (p<0.0001). The DD genotype and D allele were more frequent in patients compared to control group [DD: OR=4.93; p<0.0001; 95 % CI: 2.71-8.97; D: OR=3.08, 95% CI: 2.09-4.51 p<0.0001]. MTHFR allele and genotype frequencies did not differ between patients and controls. The susceptibility to diabetes in individuals with genotypes DD+vTT was 13.39 and in the individuals with DD+CT was 6.57 times that of the controls. However, individuals with genotypes ID+CC or II+CT have a protective effect against diabetes. The DD and TT genotypes were associated with significantly higher ACE activity and tHcy levels in diabetics. CONCLUSION Our data suggest that ACE ID polymorphism may act synergistically with MTHFR C677T polymorphism to assess diabetes risk.
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Affiliation(s)
- Sounira Mehri
- Laboratory of Biochemistry, UR Human Nutrition and Metabolic Disorders, Faculty of Medicine, Avicenne St., 5019 Monastir, Tunisia
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Garderet L, Mazurier C, Pellat-Deceunynck C, Karim A, Baudin B, Funck-Brentano C, Bouchet S, Geffroy A, Bataille R, Gorin NC, Lopez M. Poorex vivoinduction of T-cell responses to idiotype or tumor cell lysate-pulsed autologous dendritic cells in advanced pre-treated multiple myeloma. Leuk Lymphoma 2009; 47:1340-7. [PMID: 16923566 DOI: 10.1080/10428190500465242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
This study evaluated the feasibility of using dendritic cells (DCs) to generate, ex vivo, anti-tumor cytotoxic T lymphocytes (CTL) in patients with stage III multiple myeloma (MM). Nucleated cells from eight patients who had received chemotherapy (three of whom had undergone autologous hemopoeitic stem cell transplantation) were collected by apheresis. Their monocytes were enriched using counter-current centrifugation, differentiated into DCs which were further co-cultured with autologous CD8 lymphocytes to induce CTL. The DCs were pulsed either with the idiotypic paraprotein (regarded as a tumor-specific antigen) or with autologous MM cell lysate before co-culture. Specific T-cell responses were measured in IFNgamma enzyme-linked immunospot and chromium release assays of autologous plasmocyte targets. A slight increase in IFNgamma secretion by T-cells was observed for two patients (DCs pulsed with idiotypic paraprotein for one, MM cell lysate for the other). No or weak specific lysis of plasmocyte targets was observed in the chromium release assays. In conclusion, the T-cell response to pulsed DCs was very weak or absent. There are clinical and technical reasons that could explain, in part, this lack of response.
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Affiliation(s)
- Laurent Garderet
- Inserm and EA1638, Faculté de Médecine Saint Antoine, Université Pierre et Marie Curie (Paris 6), Paris, France
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Mehri S, Baudin B, Mahjoub C, Guemira F, Rachid M, Bénéteau-Burnat B, Ben Arab S, Hammami M. ASSOCIATION OF PLASMA ANGIOTENSIN- CONVERTING ENZYME ACTIVITY AND GENE POLYMORPHISM IN TUNISIAN PATIENTS AFFECTED WITH MYOCARDIAL INFARCTION. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70424-0] [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: 11/29/2022]
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Le Moguen K, Lincet H, Marcelo P, Lemoisson E, Heutte N, Duval M, Poulain L, Vinh J, Gauduchon P, Baudin B. A proteomic kinetic analysis of IGROV1 ovarian carcinoma cell line response to cisplatin treatment. Proteomics 2008; 7:4090-101. [PMID: 17994630 DOI: 10.1002/pmic.200700231] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Ovarian cancer is one of the leading causes of mortality by gynecological cancer. Despite good response to surgery and initial chemotherapy, essentially based on cisplatin (cis-diamino-dichloro-platinum(II) (CDDP)) compounds, frequent recurrences with chemoresistance acquisition are responsible for poor prognosis. Several mechanisms have been described as implicated in CDDP resistance, however they are not sufficient to exhaustively account for this resistance emergence. We applied a proteomic approach based on 2-DE coupled with MS (MALDI-TOF/TOF) to identify proteins associated with chemoresistance induced by CDDP. A kinetic analysis of IGROV1 cell behavior following treatment with CDDP and subsequent statistical analysis revealed time and/or concentration-dependent modifications in protein expression. We evidenced events such as decreased amino-acid and nucleotide synthesis potentially associated with cell cycle blockade, and variations that may be related to resistance acquisition, such as possible enhanced glycolysis and increased proliferating potential. Moreover, overexpressions of aldehyde dehydrogenase 1 and both cytokeratins 8 and 18 were consistent with our previous findings, demonstrating that expression of these proteins was increased in cisplatin-resistant IGROV1-R10 as compared to IGROV1 parental cells. Identification of such proteins could allow improved understanding of the mechanisms leading to cell death or survival and, thus, to the acquisition of chemoresistance.
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Affiliation(s)
- Karen Le Moguen
- Groupe Régional d'Etudes sur le Cancer - EA 1772 (Université de Caen-Basse Normandie), Unité Biologie et Thérapies Innovantes des Cancers Localement Agressifs, Centre de Lutte Contre le Cancer François Baclesse, Caen, France.
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Lehmann S, Dupuy A, Peoc'h K, Roche S, Baudin B, Quillard M, Berger F, Briand G, Chwetzoff S, Dine G, Gonzalo P, Dastugue B, Sève M, Siest G, Beaudeux JL. [Present possibilities and future development of clinical proteomics]. Ann Biol Clin (Paris) 2007; 65:463-71. [PMID: 17913666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2007] [Accepted: 07/03/2007] [Indexed: 05/17/2023]
Abstract
This review focuses on "clinical proteomics" which represents an emerging discipline in biomedical research. "Clinical proteomics" relies on the analysis of the proteome, i.e. the entire set of peptides and proteins present in a biological sample, to provide relevant data for diagnosis, prognosis or therapeutic strategies of human pathologies. This new type of approach has tremendous potential for the diagnosis of complex pathologies or for the early detection of cancers. This article reports the conclusions of a workgroup of the French Society for Clinical Biology (SFBC) 2004-2006 which evaluated the status, the impact and the future development of proteomics in the clinical field. It provides therefore a broad view going from the methods already present in the clinical laboratories (multiplex technologies...), to the tools for clinical and basis research including bioinformatics.
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Affiliation(s)
- S Lehmann
- Laboratoire de biochimie, Hôpital Saint Eloi, 80 aveneue A. Fliche, 3 4295 Montpellier Cedex 5.
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Bal dit Sollier C, Bonneau M, Kang C, Berge N, Brouland J, Baudin B, Drouet L. DIET MANIPULATION OF ATHEROSCLEROTIC LESIONS IN THE FHD PIG MODEL. J Thromb Haemost 2007. [DOI: 10.1111/j.1538-7836.2007.tb03006.x] [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: 11/29/2022]
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Abstract
We describe a protocol for easy isolation and culture of human umbilical vein endothelial cells (HUVECs) to supply every researcher with a method that can be applied in cell biology laboratories with minimum equipment. Endothelial cells (ECs) are isolated from umbilical vein vascular wall by a collagenase treatment, then seeded on fibronectin-coated plates and cultured in a medium with Earles' salts and fetal calf serum (FCS), but without growth factor supplementation, for 7 days in a 37 degrees C-5% CO2 incubator. Cell confluency can be monitored by phase-contrast microscopy; ECs can be characterized using cell surface or intracellular markers and checked for contamination. Various protocols can be applied to HUVECs, from simple harvesting to a particular solubilization of proteins for proteomic analysis.
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Affiliation(s)
- Bruno Baudin
- Laboratoire de Biochimie et Biologie Cellulaire-UPRES JE 2493, UFR de Pharmacie, Université Paris-Sud 11, 3 rue Jean-Baptiste Clément, 92290 Châtenay-Malabry, France.
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Pernet P, Bruneel A, Baudin B, Vaubourdolle M. PHProteomicDB: a module for two-dimensional gel electrophoresis database creation on personal web sites. Genomics Proteomics Bioinformatics 2006; 4:134-6. [PMID: 16970552 PMCID: PMC5054057 DOI: 10.1016/s1672-0229(06)60024-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
PHProteomicDB is a PHP-written module to help researchers in proteomics to share two-dimensional electrophoresis gel data using personal web sites. No technical or PHP knowledge is necessary except a few basics about web site management. PHProteomicDB has a user-friendly administration interface to enter and update data. It creates web pages on the fly displaying gel characteristics, gel pictures, and numbered gel spots with their related identifications pointing to their reference pages in protein databanks. The module is freely available at http://www.huvec.com/index.php3?rub=Download.
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Affiliation(s)
- Pascal Pernet
- Service de Biochimie A, Hopital Saint-Antoine, 75012 Paris, France.
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Le Moguen K, Lincet H, Deslandes E, Hubert-Roux M, Lange C, Poulain L, Gauduchon P, Baudin B. Comparative proteomic analysis of cisplatin sensitive IGROV1 ovarian carcinoma cell line and its resistant counterpart IGROV1-R10. Proteomics 2006; 6:5183-92. [PMID: 16941573 DOI: 10.1002/pmic.200500925] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Ovarian cancer is one of the leading causes of mortality due to gynaecological cancer. Despite a good response to surgery and initial chemotherapy essentially based on cisplatin (cis-diamino-dichloro-platinum(II) (CDDP)) compounds, late tumour detection and frequent recurrences with chemoresistance acquisition are responsible for poor prognosis. Several mechanisms have been implicated in CDDP resistance but they are not sufficient to exhaustively explain this resistance emergence. We applied a proteomic approach based on 2-DE coupled with MS to identify proteins associated with the chemoresistance process. We first established a proteomic pattern of the CDDP sensitive ovarian cell line IGROV1 using MALDI-TOF-MS and PMF. We then compared this 2-D pattern with that of the CDDP-resistant counterpart IGROV1-R10. Among the 40 proteins identified, cytokeratins 8 and 18 and aldehyde dehydrogenase 1 were overexpressed in IGROV1-R10, whereas annexin IV was down-regulated. These observations have been confirmed by Western blotting. The characterization of such variations could lead to the development of new protein markers or to the establishment of new therapeutic strategies. Moreover, the identification of proteins involved in CDDP resistance in ovarian tumours would be useful in completing our understanding on this complex mechanism.
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Bruneel A, Labas V, Mailloux A, Sharma S, Royer N, Vinh J, Pernet P, Vaubourdolle M, Baudin B. Proteomics of human umbilical vein endothelial cells applied to etoposide-induced apoptosis. Proteomics 2005; 5:3876-84. [PMID: 16130169 DOI: 10.1002/pmic.200401239] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
We have undertaken to continue the proteomic study of human umbilical vein endothelial cells (HUVECs) using the combination of 2-DE, automated trypsin digestion, and PMF analysis after MALDI-TOF MS and peptide sequencing using nano LC-ESI-MS/MS. The overall functional characterization of the 162 identified proteins from primary cultures of HUVECs confirms the metabolic capabilities of endothelium and illustrates various cellular functions more related to cell motility and angiogenesis, protein folding, anti-oxidant defenses, signal transduction, proteasome pathway and resistance to apoptosis. In comparison with controls cells, the differential proteomic analysis of HUVECs treated by the pro-apoptotic topoisomerase inhibitor etoposide further revealed the variation of eight proteins, namely, GRP78, GRP94, valosin-containing protein, proteinase inhibitor 9, cofilin, 37-kDa laminin receptor protein, bovine apolipoprotein, and tropomyosin. These data suggest that etoposide-induced apoptosis of human vascular endothelial cells results from the intricate involvement of multiple apoptosis processes including at least the mitochondrial and the ER stress pathways. The presented 2-D pattern and protein database, as well as the data related to apoptosis of HUVECs, are available at http://www.huvec.com.
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Affiliation(s)
- Arnaud Bruneel
- Service de Biochimie A, Hôpital Saint-Antoine, AP-HP, Paris, France.
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