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Dirand J, Rieunier F, Testa F, Temime L. Évaluation des bénéfices potentiels liés à l’utilisation d’un brouillard d’eau basse pression dans la lutte contre les incendies chez les sapeurs-pompiers de Paris, à partir d’une évaluation quantitative des risques. ARCH MAL PROF ENVIRO 2021. [DOI: 10.1016/j.admp.2021.07.007] [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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Valdenaire J, Rieunier F, Testa F, Temime L. Évaluation des bénéfices potentiels d’un nouveau mode d’action pour les pompiers de Paris, l’attaque d’atténuation, à partir d’une évaluation quantitative des risques. ARCH MAL PROF ENVIRO 2020. [DOI: 10.1016/j.admp.2019.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Malaud E, Merle D, Piquer D, Molina L, Salvetat N, Rubrecht L, Dupaty E, Galea P, Cobo S, Blanc A, Saussine M, Marty-Ané C, Albat B, Meilhac O, Rieunier F, Pouzet A, Molina F, Laune D, Fareh J. Local carotid atherosclerotic plaque proteins for the identification of circulating biomarkers in coronary patients. Atherosclerosis 2014; 233:551-558. [PMID: 24530963 DOI: 10.1016/j.atherosclerosis.2013.12.019] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/18/2013] [Accepted: 12/09/2013] [Indexed: 10/25/2022]
Abstract
OBJECTIVE To identify circulating biomarkers that originate from atherosclerotic vulnerable plaques and that could predict future cardiovascular events. METHODS After a protein enrichment step (combinatorial peptide ligand library approach), we performed a two-dimensional electrophoresis comparative analysis on human carotid plaque protein extracts (fibrotic and hemorrhagic atherosclerotic plaques). In silico analysis of the biological processes was applied on proteomic data. Luminex xMAP assays were used to quantify inflammatory components in carotid plaques. The systemic quantification of proteins originating from vulnerable plaques in blood samples from patients with stable and unstable coronary disease was evaluated. RESULTS A total of 118 proteins are differentially expressed in fibrotic and hemorrhagic plaques, and allowed the identification of three biological processes related to atherosclerosis (platelet degranulation, vascular autophagy and negative regulation of fibrinolysis). The multiplex assays revealed an increasing expression of VEGF, IL-6, IL-8, IP-10 and RANTES in hemorrhagic as compared to fibrotic plaques (p<0.05). Measurement of protein expressions in plasmas from patients with stable and unstable coronary disease identified a combination of biomarkers, including proteins of the smooth muscle cell integrity (Calponin-1), oxidative stress (DJ-1) and inflammation (IL-8), that allows the accurate classification of patients at risk (p=0.0006). CONCLUSION Using tissue protein enrichment technology, we validated proteins that are differentially expressed in hemorrhagic plaques as potential circulating biomarkers of coronary patients. Combinations of such circulating biomarkers could be used to stratify coronary patients.
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Affiliation(s)
- Eric Malaud
- UMR3145 CNRS Bio-Rad, SysDiag, Montpellier, France
| | | | | | | | | | | | | | | | - Sandra Cobo
- UMR3145 CNRS Bio-Rad, SysDiag, Montpellier, France
| | | | - Max Saussine
- Vascular Surgery Department, Arnaud de Villeneuve Hospital, CHU Montpellier, France
| | - Charles Marty-Ané
- Vascular Surgery Department, Arnaud de Villeneuve Hospital, CHU Montpellier, France
| | - Bernard Albat
- Vascular Surgery Department, Arnaud de Villeneuve Hospital, CHU Montpellier, France
| | | | | | - Agnes Pouzet
- Bio-Rad Laboratories, Marnes la Coquette, France
| | | | - Daniel Laune
- UMR3145 CNRS Bio-Rad, SysDiag, Montpellier, France
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Abraham JD, Promé S, Salvetat N, Rubrecht L, Cobo S, du Paty E, Galéa P, Mathieu-Dupas E, Ranaldi S, Caillava C, Crémer GA, Rieunier F, Robert P, Molina F, Laune D, Checler F, Fareh J. Cerebrospinal Aβ11-x and 17-x levels as indicators of mild cognitive impairment and patients' stratification in Alzheimer's disease. Transl Psychiatry 2013; 3:e281. [PMID: 23860482 PMCID: PMC3731790 DOI: 10.1038/tp.2013.58] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 05/25/2013] [Indexed: 01/08/2023] Open
Abstract
In the present work, the concentrations of Aβ11-x and Aβ17-x peptides (x=40 or 42), which result from the combined cleavages of β-amyloid precursor protein (AβPP) by β'/α or α/γ-secretases, respectively, were assessed in cerebrospinal fluid (CSF) samples from patients with Alzheimer's disease (AD) or mild cognitive impairment (MCI). Specific multiplexed assays were set up using new anti-40 and anti-42 monoclonal antibodies (mAbs) for the capture of these N-truncated Aβ peptides and anti-11 or anti-17 mAbs for their detection. The specificity, sensitivity and reproducibility of such assays were assessed using synthetic peptides and human cell models. Aβ11-x and Aβ17-x were then measured in CSF samples from patients with AD (n=23), MCI (n=23) and controls with normal cognition (n=21). Aβ11-x levels were significantly lower in patients with MCI than in controls. Compared with the combined quantification of Aβ1-42, total Tau (T-Tau) and phosphorylated Tau (P-Tau; AlzBio3, Innogenetics), the association of Aβ11-40, Aβ17-40 and T-Tau improved the discrimination between MCI and controls. Furthermore, when patients with MCI were classified into two subgroups (MCI ≤1.5 or ≥2 based on their CDR-SB (Cognitive Dementia Rating-Sum of Boxes) score), the CSF Aβ17-40/Aβ11-40 ratio was significantly higher in patients with CDR-SB ≤1.5 than in controls, whereas neither Aβ1-42, T-Tau nor P-Tau allowed the detection of this subpopulation. These results need to be confirmed in a larger clinical prospective cohort.
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Affiliation(s)
- J-D Abraham
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France.
| | - S Promé
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - N Salvetat
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - L Rubrecht
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - S Cobo
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - E du Paty
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - P Galéa
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | | | - S Ranaldi
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - C Caillava
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, team labelized by the ‘Fondation pour la Recherche Médicale' and LABEX (Laboratory of Excellence), Valbonne, France
| | - G-A Crémer
- Bio-Rad Laboratories, Marnes la Coquette, France
| | - F Rieunier
- Bio-Rad Laboratories, Marnes la Coquette, France
| | - P Robert
- CMRR, Memory Center, EA CoBTeK, University of Nice Sophia-Antipolis, Nice, France
| | - F Molina
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - D Laune
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
| | - F Checler
- Institut de Pharmacologie Moléculaire et Cellulaire, UMR7275, team labelized by the ‘Fondation pour la Recherche Médicale' and LABEX (Laboratory of Excellence), Valbonne, France
| | - J Fareh
- SysDiag CNRS/Bio-Rad UMR3145, Montpellier, France
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