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Domitien Payet L, Bedin AS, Desselas É, Marie-Jeanne C, Mollevi C, Malergue F, Bourgoin P, Van de Perre P, Tuaillon É, Jeziorski É. Leukocyte Activation Patterns in Hospitalized Children: Comparing SARS-CoV-2, Bacterial Infections, and Inflammatory Pathologies. J Leukoc Biol 2024:qiae093. [PMID: 38648502 DOI: 10.1093/jleuko/qiae093] [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: 10/13/2023] [Revised: 02/14/2024] [Accepted: 03/27/2024] [Indexed: 04/25/2024] Open
Abstract
In adults, monocytes and neutrophils play important roles in the hyper-inflammatory responses' characteristic of severe forms of SARS-CoV-2 infection. We assessed leukocyte activation in 55 children attending the emergency department for acute fever between March 2020 and September 2021. The following markers were analyzed by flow cytometry: CD169 and HLA-DR on monocytes, CD64 and CD16 on neutrophils, CD38 on lymphocytes TCD8. Fifteen of the children had SARS-CoV-2 infection, 15 had bacterial infections, 15 had inflammatory diseases. We observed overexpression of CD169 on monocytes and CD38 on lymphocytes T in all patients with a diagnosis of SARS-CoV-2, while overexpression of CD64 on neutrophils was observed with bacterial infections and inflammatory diseases. There was a decrease in the expression of HLA-DR on monocytes in the bacterial infection and inflammatory pathology groups. Leukocyte analysis identifies distinct activation patterns in children during SARS-CoV-2 infections, bacterial infections, and inflammatory diseases.
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Affiliation(s)
- Léa Domitien Payet
- Department of General Pediatrics, Infectiology and Clinical Immunology, Arnaud de Villeneuve UHC, Montpellier, France
- Pathogenesis and Control of Chronic Infections, INSERM U1058, Montpellier UHC, University of Montpellier, Montpellier, France
| | - Anne Sophie Bedin
- Pathogenesis and Control of Chronic Infections, INSERM U1058, Montpellier UHC, University of Montpellier, Montpellier, France
| | - Émilie Desselas
- Department of General Pediatrics, Infectiology and Clinical Immunology, Arnaud de Villeneuve UHC, Montpellier, France
| | - Carole Marie-Jeanne
- Department of General Pediatrics, Infectiology and Clinical Immunology, Arnaud de Villeneuve UHC, Montpellier, France
| | - Caroline Mollevi
- France Institute Desbrest of Epidemiology and Public Health, University Montpellier, INSERM, CHU Montpellier, Montpellier, France
| | - Fabrice Malergue
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
| | - Penelope Bourgoin
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
| | - Philippe Van de Perre
- Virology Laboratory at Montpellier University Hospital, Pathogenesis and Control of Chronic and Emerging Infections, INSERM U1058, Montpellier University Hospital, University of Montpellier, Montpellier, France
| | - Édouard Tuaillon
- Pathogenesis and Control of Chronic Infections, INSERM U1058, Montpellier UHC, University of Montpellier, Montpellier, France
- Virology Laboratory at Montpellier University Hospital, Pathogenesis and Control of Chronic and Emerging Infections, INSERM U1058, Montpellier University Hospital, University of Montpellier, Montpellier, France
| | - Éric Jeziorski
- Pathogenesis and Control of Chronic Infections, INSERM U1058, Montpellier UHC, University of Montpellier, Montpellier, France
- Department of General Pediatrics, Infectiology, and Clinical Immunology, Department of Emergency, Post-Emergency Department, University Hospital of Montpellier, Montpellier, France
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2
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Fanelli M, Petrone V, Maracchioni C, Chirico R, Cipriani C, Coppola L, Malagnino V, Teti E, Sorace C, Zordan M, Vitale P, Iannetta M, Balestrieri E, Rasi G, Grelli S, Malergue F, Sarmati L, Minutolo A, Matteucci C. Persistence of circulating CD169+monocytes and HLA-DR downregulation underline the immune response impairment in PASC individuals: the potential contribution of different COVID-19 pandemic waves. Curr Res Microb Sci 2023; 6:100215. [PMID: 38187999 PMCID: PMC10767315 DOI: 10.1016/j.crmicr.2023.100215] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024] Open
Abstract
The use of CD169 as a marker of viral infection has been widely discussed in the context of COVID-19, and in particular, its crucial role in the early detection of SARS-CoV-2 infection and its association with the severity and clinical outcome of COVID-19 were demonstrated. COVID-19 patients show relevant systemic alteration and immunological dysfunction that persists in individuals with post-acute sequelae of SARS-CoV-2 infection (PASC). It is critical to implement the characterization of the disease, focusing also on the possible impact of the different COVID-19 waves and the consequent effects found after infection. On this basis, we evaluated by flow cytometry the expression of CD169 and HLA-DR on monocytes from COVID-19 patients and PASC individuals to better elucidate their involvement in immunological dysfunction, also evaluating the possible impact of different pandemic waves. The results confirm CD169 RMFI is a good marker of viral infection. Moreover, COVID-19 patients and PASC individuals showed high percentage of CD169+ monocytes, but low percentage of HLA-DR+ monocytes and the alteration of systemic inflammatory indices. We have also observed alterations of CD169 and HLA-DR expression and indices of inflammation upon different COVID-19 waves. The persistence of specific myeloid subpopulations suggests a role of CD169+ monocytes and HLA-DR in COVID-19 disease and chronic post-infection inflammation, opening new opportunities to evaluate the impact of specific pandemic waves on the immune response impairment and systemic alterations with the perspective to provide new tools to monitoring new variants and diseases associated to emerging respiratory viruses.
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Affiliation(s)
- Marialaura Fanelli
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Vita Petrone
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Christian Maracchioni
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Rossella Chirico
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Chiara Cipriani
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Luigi Coppola
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Vincenzo Malagnino
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Elisabetta Teti
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Chiara Sorace
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Marta Zordan
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Pietro Vitale
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Marco Iannetta
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Emanuela Balestrieri
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Guido Rasi
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Sandro Grelli
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
- Virology Unit, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Fabrice Malergue
- Global Research Organization, Beckman Coulter Life Sciences, Marseille, 13009, France
| | - Loredana Sarmati
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, 00133, Italy
- Infectious Diseases Clinic, Policlinic of Tor Vergata, Rome, 00133, Italy
| | - Antonella Minutolo
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
| | - Claudia Matteucci
- Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier, 1 - 00133, Rome, 00133, Italy
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3
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Ait-Belkacem I, Cartagena García C, Millet-Wallisky E, Izquierdo N, Loosveld M, Arnoux I, Morange PE, Galland F, Lambert N, Malergue F, Busnel JM. SARS-CoV-2 spike protein induces a differential monocyte activation that may contribute to age bias in COVID-19 severity. Sci Rep 2022; 12:20824. [PMID: 36460710 PMCID: PMC9716544 DOI: 10.1038/s41598-022-25259-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 11/28/2022] [Indexed: 12/03/2022] Open
Abstract
A strong bias related to age is observed in COVID-19 patients with pediatric subjects developing a milder disease than adults. We hypothesized that a specific SARS-CoV-2 effect conjugated with preexisting differences in the immune systems may explain this. Using flow cytometry, we investigated basal immune differences in a cohort consisting of 16 non-infected young and 16 aged individuals and further leveraged an in vitro whole blood model of SARS-CoV-2 infection so that functional differences could be mined as well. In short, blood diluted in culture media was incubated 5 or 24 h with the trimeric spike protein or controls. Following unsupervised analysis, we first confirmed that the immune lymphoid and myeloid systems in adults are less efficient and prone to develop higher inflammation than those in children. We notably identified in adults a higher CD43 lymphocyte expression, known for its potentially inhibitory role. The spike protein induced different responses between adults and children, notably a higher increase of inflammatory markers together with lower monocyte and B cell activation in adults. Interestingly, CD169, a CD43 ligand overexpressed in COVID-19 patients, was confirmed to be strongly modulated by the spike protein. In conclusion, the spike protein exacerbated the preexisting lower immune responsiveness and higher inflammatory potential in adults. Altogether, some of the markers identified may explain the marked age bias and be predictive of severity.
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Affiliation(s)
- Ines Ait-Belkacem
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France ,grid.417850.f0000 0004 0639 5277Aix Marseille Université CNRS INSERM CIML Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Celia Cartagena García
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France ,grid.5399.60000 0001 2176 4817INSERM UMRs 1097, Aix Marseille University, Marseille, France
| | - Ewa Millet-Wallisky
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Nicolas Izquierdo
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Marie Loosveld
- grid.411266.60000 0001 0404 1115Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Isabelle Arnoux
- grid.411266.60000 0001 0404 1115Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Pierre-Emmanuel Morange
- grid.411266.60000 0001 0404 1115Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Franck Galland
- grid.417850.f0000 0004 0639 5277Aix Marseille Université CNRS INSERM CIML Centre d’Immunologie de Marseille-Luminy, Marseille, France
| | - Nathalie Lambert
- grid.5399.60000 0001 2176 4817INSERM UMRs 1097, Aix Marseille University, Marseille, France
| | - Fabrice Malergue
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Jean-Marc Busnel
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
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4
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Michel M, Malergue F, Ait Belkacem I, Bourgoin P, Morange PE, Arnoux I, Miloud T, Million M, Tissot-Dupont H, Mege JL, Vitte J, Busnel JM. A rapid, easy, and scalable whole blood monocyte CD169 assay for outpatient screening during SARS-CoV-2 outbreak, and potentially other emerging disease outbreaks. SAGE Open Med 2022; 10:20503121221115483. [PMID: 35959245 PMCID: PMC9358337 DOI: 10.1177/20503121221115483] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 06/28/2022] [Indexed: 11/25/2022] Open
Abstract
Objective: The COVID-19 corona virus disease outbreak is globally challenging health
systems and societies. Its diagnosis relies on molecular methods, with
drawbacks revealed by mass screening. Upregulation of neutrophil CD64 or
monocyte CD169 has been abundantly reported as markers of bacterial or acute
viral infection, respectively. We evaluated the sensitivity of an easy,
one-step whole blood flow cytometry assay to measure these markers within
10 min, as a potential screening test for COVID-19 patients. Methods: Patients (n = 177) with confirmed severe acute respiratory
syndrome coronavirus 2 (SARS-CoV-2) infection were tested on 10 µL blood and
results were compared with reverse transcriptase-quantitative polymerase
chain reaction (RT-qPCR). Results: We observed 98% and 100% sensitivity in early-stage (n = 52)
and asymptomatic patients (n = 9), respectively. Late-stage
patients, who presented for a second control RT-qPCR, were negative for both
assays in most cases. Conversely, neutrophil CD64 expression was unchanged
in 75% of cases, without significant differences between groups. Conclusion: Monocyte CD169 evaluation was highly sensitive for detecting SARS-CoV-2
infection in first-presentation patients; and it returns to basal level upon
infection clearance. The potential ease of fingerprick collection, minimal
time-to-result, and low cost rank this biomarker measurement as a potential
viral disease screening tool, including COVID-19. When the virus prevalence
in the tested population is usually low (1%−10%), such an approach could
increase the testing capacity 10 to 100-fold, with the same limited
molecular testing resources, which could focus on confirmation purposes
only.
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Affiliation(s)
- Moïse Michel
- Aix-Marseille University, Marseille, France.,APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Marseille, France
| | | | | | | | | | - Isabelle Arnoux
- APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Marseille, France
| | | | - Matthieu Million
- APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Marseille, France.,IHU Méditerranée Infection, Marseille, France
| | - Hervé Tissot-Dupont
- APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Marseille, France.,IHU Méditerranée Infection, Marseille, France
| | - Jean-Louis Mege
- Aix-Marseille University, Marseille, France.,IHU Méditerranée Infection, Marseille, France
| | - Joana Vitte
- Aix-Marseille University, Marseille, France.,APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Marseille, France.,IHU Méditerranée Infection, Marseille, France
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5
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Bedin AS, Makinson A, Picot MC, Mennechet F, Malergue F, Pisoni A, Nyiramigisha E, Montagnier L, Bollore K, Debiesse S, Morquin D, Bourgoin P, Veyrenche N, Renault C, Foulongne V, Bret C, Bourdin A, Le Moing V, Van de Perre P, Tuaillon E. Erratum to: Monocyte CD169 Expression as a Biomarker in the Early Diagnosis of Coronavirus Disease 2019. J Infect Dis 2022; 225:744. [PMID: 35031805 PMCID: PMC8935078 DOI: 10.1093/infdis/jiab599] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Affiliation(s)
- Anne-Sophie Bedin
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Alain Makinson
- INSERM U1175/IRD UMI 233, IRD, Montpellier University, Montpellier, France.,Department of Infectious Diseases, Montpellier University Hospital, Montpellier, France
| | - Marie-Christine Picot
- INSERM, Centre d'Investigation Clinique 1411, Montpellier University, Montpellier, France.,Montpellier University Hospital, Montpellier, France
| | - Frank Mennechet
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Fabrice Malergue
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
| | - Amandine Pisoni
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
| | | | - Lise Montagnier
- Laboratory of Virology, Montpellier University Hospital, France
| | - Karine Bollore
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Ségolène Debiesse
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - David Morquin
- Department of Infectious Diseases, Montpellier University Hospital, Montpellier, France
| | - Pénélope Bourgoin
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
| | | | - Constance Renault
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Vincent Foulongne
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
| | - Caroline Bret
- Laboratory of Hematology, Montpellier University Hospital, France
| | - Arnaud Bourdin
- Department of Respiratory Diseases, Montpellier University Hospital, Montpellier, France.,PhyMedExp, Montpellier University, CNRS, INSERM, Montpellier, France
| | - Vincent Le Moing
- INSERM U1175/IRD UMI 233, IRD, Montpellier University, Montpellier, France.,Department of Infectious Diseases, Montpellier University Hospital, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
| | - Edouard Tuaillon
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
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6
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van der Velden LM, Maas P, van Amersfoort M, Timmermans-Sprang EPM, Mensinga A, van der Vaart E, Malergue F, Viëtor H, Derksen PWB, Klumperman J, van Agthoven A, Egan DA, Mol JA, Strous GJ. Small molecules to regulate the GH/IGF1 axis by inhibiting the growth hormone receptor synthesis. Front Endocrinol (Lausanne) 2022; 13:926210. [PMID: 35966052 PMCID: PMC9365994 DOI: 10.3389/fendo.2022.926210] [Citation(s) in RCA: 4] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 06/28/2022] [Indexed: 11/13/2022] Open
Abstract
Growth hormone (GH) and insulin-like growth factor-1 (IGF1) play an important role in mammalian development, cell proliferation and lifespan. Especially in cases of tumor growth there is an urgent need to control the GH/IGF1 axis. In this study we screened a 38,480-compound library, and in two consecutive rounds of analogues selection, we identified active lead compounds based on the following criteria: inhibition the GH receptor (GHR) activity and its downstream effectors Jak2 and STAT5, and inhibition of growth of breast and colon cancer cells. The most active small molecule (BM001) inhibited both the GH/IGF1 axis and cell proliferation with an IC50 of 10-30 nM of human cancer cells. BM001 depleted GHR in human lymphoblasts. In preclinical xenografted experiments, BM001 showed a strong decrease in tumor volume in mice transplanted with MDA-MB-231 breast cancer cells. Mechanistically, the drug acts on the synthesis of the GHR. Our findings open the possibility to inhibit the GH/IGF1 axis with a small molecule.
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Affiliation(s)
- Lieke M. van der Velden
- Department of Cell Biology, Centre for Molecular Medicine, University Medical Center (UMC) Utrecht, Utrecht, Netherlands
| | - Peter Maas
- Specs Compound Handling, Zoetermeer, Netherlands
- *Correspondence: Ger J. Strous, ; Jan A. Mol, ; Peter Maas,
| | | | | | - Anneloes Mensinga
- Department of Cell Biology, Centre for Molecular Medicine, University Medical Center (UMC) Utrecht, Utrecht, Netherlands
| | - Elisabeth van der Vaart
- Department of Cell Biology, Centre for Molecular Medicine, University Medical Center (UMC) Utrecht, Utrecht, Netherlands
| | - Fabrice Malergue
- Department of Research and Development, Beckman Coulter Life Science, Immunotech Marseille, Marseille, France
| | - Henk Viëtor
- Drug Discovery Factory (DDF) Ventures, Breukelen, Netherlands
| | - Patrick W B. Derksen
- Department of Pathology, University Medical Center (UMC) Utrecht, Utrecht, Netherlands
| | - Judith Klumperman
- Department of Cell Biology, Centre for Molecular Medicine, University Medical Center (UMC) Utrecht, Utrecht, Netherlands
| | - Andreas van Agthoven
- Department of Research and Development, Beckman Coulter Life Science, Immunotech Marseille, Marseille, France
| | - David A. Egan
- Cell Screening Core, Department of Cell Biology, Center for Molecular Medicine, University Medical Center, Utrecht, Netherlands
| | - Jan A. Mol
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
- *Correspondence: Ger J. Strous, ; Jan A. Mol, ; Peter Maas,
| | - Ger J. Strous
- Department of Cell Biology, Centre for Molecular Medicine, University Medical Center (UMC) Utrecht, Utrecht, Netherlands
- *Correspondence: Ger J. Strous, ; Jan A. Mol, ; Peter Maas,
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7
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Ait Belkacem I, Mossadegh‐keller N, Bourgoin P, Arnoux I, Loosveld M, Morange P, Markarian T, Michelet P, Busnel JM, Roulland S, Galland F, Malergue F. Cell Analysis from Dried Blood Spots: New Opportunities in Immunology, Hematology, and Infectious Diseases. Adv Sci (Weinh) 2021; 8:e2100323. [PMID: 34278739 PMCID: PMC8456206 DOI: 10.1002/advs.202100323] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/03/2021] [Indexed: 05/04/2023]
Abstract
Blood cell analysis is a major pillar of biomedical research and healthcare. These analyses are performed in central laboratories. Rapid shipment from collection site to the central laboratories is currently needed because cells and biomarkers degrade rapidly. The dried blood spot from a fingerstick allows the preservation of cellular molecules for months but entire cells are never recovered. Here leucocyte elution is optimized from dried blood spots. Flow cytometry and mRNA expression profiling are used to analyze the recovered cells. 50-70% of the leucocytes that are dried on a polyester solid support via elution after shaking the support with buffer are recovered. While red blood cells lyse upon drying, it is found that the majority of leucocytes are preserved. Leucocytes have an altered structure that is improved by adding fixative in the elution buffer. Leucocytes are permeabilized, allowing an easy staining of all cellular compartments. Common immunophenotyping and mRNAs are preserved. The ability of a new biomarker (CD169) to discriminate between patients with and without Severe Acute Respiratory Syndrome induced by Coronavirus 2 (SARS-CoV-2) infections is also preserved. Leucocytes from blood can be dried, shipped, and/or stored for at least 1 month, then recovered for a wide variety of analyses, potentially facilitating biomedical applications worldwide.
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Affiliation(s)
- Ines Ait Belkacem
- Department of Research and DevelopmentBeckman Coulter Life Sciences‐Immunotech130 Avenue de Lattre de TassignyMarseille13009France
- Aix Marseille UniversitéCNRSINSERMCIMLCentre d'Immunologie de Marseille‐LuminyMarseille13009France
| | | | - Penelope Bourgoin
- Department of Research and DevelopmentBeckman Coulter Life Sciences‐Immunotech130 Avenue de Lattre de TassignyMarseille13009France
| | - Isabelle Arnoux
- Department of Hematology LaboratoryTimone University HospitalAPHM264 Rue Saint‐PierreMarseille13005France
| | - Marie Loosveld
- Department of Hematology LaboratoryTimone University HospitalAPHM264 Rue Saint‐PierreMarseille13005France
| | - Pierre‐emmanuel Morange
- Department of Hematology LaboratoryTimone University HospitalAPHM264 Rue Saint‐PierreMarseille13005France
- Aix Marseille UniversitéINSERMINRAEC2VN, 27 Boulevard Jean MoulinMarseille13385France
| | - Thibaut Markarian
- Department of Hematology LaboratoryTimone University HospitalAPHM264 Rue Saint‐PierreMarseille13005France
- Aix Marseille UniversitéINSERMINRAEC2VN, 27 Boulevard Jean MoulinMarseille13385France
| | - Pierre Michelet
- Aix Marseille UniversitéINSERMINRAEC2VN, 27 Boulevard Jean MoulinMarseille13385France
- Department of Emergency Medicine and Intensive CareTimone University HospitalAPHM264 Rue Saint PierreMarseille13005France
| | - Jean Marc Busnel
- Department of Research and DevelopmentBeckman Coulter Life Sciences‐Immunotech130 Avenue de Lattre de TassignyMarseille13009France
| | - Sandrine Roulland
- Aix Marseille UniversitéCNRSINSERMCIMLCentre d'Immunologie de Marseille‐LuminyMarseille13009France
| | - Franck Galland
- Aix Marseille UniversitéCNRSINSERMCIMLCentre d'Immunologie de Marseille‐LuminyMarseille13009France
| | - Fabrice Malergue
- Department of Research and DevelopmentBeckman Coulter Life Sciences‐Immunotech130 Avenue de Lattre de TassignyMarseille13009France
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8
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Belkacem IA, Bourgoin P, Busnel JM, Galland F, Malergue F. One-step White Blood Cell Extracellular Staining Method for Flow Cytometry. Bio Protoc 2021; 11:e4135. [PMID: 34541052 PMCID: PMC8413609 DOI: 10.21769/bioprotoc.4135] [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: 03/23/2021] [Revised: 05/19/2021] [Accepted: 05/26/2021] [Indexed: 11/02/2022] Open
Abstract
Flow cytometry is a powerful analytical technique that is increasingly used in scientific investigations and healthcare; however, it requires time-consuming, multi-step sample procedures, which limits its use to specialized laboratories. In this study, we propose a new universal one-step method in which white blood cell staining and red blood cell lysis are carried out in a single step, using a gentle lysis solution mixed with fluorescent antibody conjugates or probes in a dry or liquid format. The blood sample may be obtained from a routine venipuncture or directly from a fingerprick, allowing for near-patient analysis. This procedure enables the analysis of common white blood cell markers as well as markers related to infections or sepsis. This simpler and faster protocol may help to democratize the use of flow cytometry in the research and medical fields. Graphic abstract: One-step White Blood Cell Extracellular Staining Method for Flow Cytometry.
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Affiliation(s)
- Ines Ait Belkacem
- Aix Marseille University, Centre d'Immunologie de Marseille-Luminy, Marseille, France
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Pénélope Bourgoin
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Jean Marc Busnel
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Franck Galland
- Aix Marseille University, Centre d'Immunologie de Marseille-Luminy, Marseille, France
| | - Fabrice Malergue
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
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9
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Bourgoin P, Belkacem IA, Arnoux I, Morange PE, Malergue F. Direct freezing of whole blood enables analysis of leucocyte markers by flow cytometry: a proof-of-concept study. Future Microbiol 2021; 16:955-966. [PMID: 34406067 DOI: 10.2217/fmb-2021-0034] [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] [Indexed: 11/21/2022] Open
Abstract
Aim: A new one-step flow cytometry procedure has been recently demonstrated for identifying subjects with infections, but only for fresh whole blood samples. The goal of this study was to assess its applicability on frozen samples, by proposing a new method to perform the sample freezing directly and easily. Methods: Fresh blood was tested, then frozen either directly or with dimethylsulfoxide and serum. Common markers of white blood cells as well as infection-related biomarkers were tested. Results: All percentages of leucocyte subsets and levels of infection-related biomarkers were significantly correlated between frozen and fresh samples. Conclusion: The direct freezing method enables an accurate assessment of common cellular sub-populations and of levels of important infectious biomarkers via flow cytometry.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, Marseille, 13009, France.,C2VN INSERM-INRAE, Aix-Marseille University, 27 Boulevard Jean Moulin, Marseille, 13385, France
| | - Inès Ait Belkacem
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, Marseille, 13009, France.,UMR 7280, Marseille-Luminy Immunology Center (CIML), Marseille, 13009, France
| | - Isabelle Arnoux
- Laboratory of Hematology, La Timone Hospital, 264 Rue Saint-Pierre, Marseille, 13385, France
| | - Pierre-Emmanuel Morange
- C2VN INSERM-INRAE, Aix-Marseille University, 27 Boulevard Jean Moulin, Marseille, 13385, France.,Laboratory of Hematology, La Timone Hospital, 264 Rue Saint-Pierre, Marseille, 13385, France
| | - Fabrice Malergue
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, Marseille, 13009, France
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10
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Vitte J, Diallo AB, Boumaza A, Lopez A, Michel M, Allardet-Servent J, Mezouar S, Sereme Y, Busnel JM, Miloud T, Malergue F, Morange PE, Halfon P, Olive D, Leone M, Mege JL. Reply to Chen and Vitetta. J Infect Dis 2021; 223:1660-1662. [PMID: 33855439 DOI: 10.1093/infdis/jiab062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 01/28/2021] [Indexed: 11/14/2022] Open
Affiliation(s)
- Joana Vitte
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France.,Institut Desbrest d'Epidémiologie et de Santé Publique, Institut National de la Santé et de la Recherche Médicale, Montpellier University, Montpellier, France
| | - Aïssatou Bailo Diallo
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Asma Boumaza
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Alexandre Lopez
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France.,Aix-Marseille Université, APHM Hôpitaux Universitaires de Marseille, Hôpital Nord, Service d'anesthésie et de réanimation, Marseille, France
| | - Moïse Michel
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France.,Laboratoire d'Immunologie, CHU de Nîmes, Nîmes, France
| | | | | | - Youssouf Sereme
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | | | | | | | - Pierre-Emmanuel Morange
- C2VN Aix-Marseille Université Institut National de la Santé et de la Recherche Médicale, Institut National de Recherche Pour L'agriculture, L'alimentation et L'environnement, APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Service d'hématologie, Marseille, France
| | - Philippe Halfon
- Internal Medicine and Infectious Diseases Department, Hôpital Européen, laboratoire Alphabio, Marseille, France
| | - Daniel Olive
- Aix-Marseille Université, Institut Paoli-Calmettes, Cancer Research Center of Marseille, Institut National de la Santé et de la Recherche Médicale U1068, Centre National de Recherche Scientifique U7258, Marseille, France
| | - Marc Leone
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France.,Aix-Marseille Université, APHM Hôpitaux Universitaires de Marseille, Hôpital Nord, Service d'anesthésie et de réanimation, Marseille, France
| | - Jean-Louis Mege
- Aix-Marseille Université, Institut de Recherche Pour le Développement, APHM Hôpitaux Universitaires de Marseille, Unité Mixte de Recherche-D258 Microbe Evolution Phylogénie Infection, Marseille, France.,Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France.,Aix-Marseille Université, APHM Hôpitaux Universitaires de Marseille, Hôpital de la Conception, Service d'Immunologie, Marseille, France
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11
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Bedin AS, Makinson A, Picot MC, Mennechet F, Malergue F, Pisoni A, Nyiramigisha E, Montagnier L, Bollore K, Debiesse S, Morquin D, Veyrenche N, Renault C, Foulongne V, Bret C, Bourdin A, Le Moing V, Van de Perre P, Tuaillon E. Monocyte CD169 Expression as a Biomarker in the Early Diagnosis of Coronavirus Disease 2019. J Infect Dis 2021; 223:562-567. [PMID: 33206973 PMCID: PMC7717347 DOI: 10.1093/infdis/jiaa724] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/17/2020] [Indexed: 11/14/2022] Open
Abstract
We assessed the expression of CD169, a type I interferon-inducible receptor, on monocytes (mCD169) in 53 adult patients admitted to the hospital during the COVID-19 outbreak for a suspicion of SARS-CoV-2 infection. mCD169 was strongly overexpressed in 30 out of 32 (93.7%) confirmed COVID-19 cases, compared to three out of 21 (14.3%) patients in whom the diagnosis of COVID-19 was finally ruled out. mCD169 was associated with the plasma interferon alpha level and thrombocytopenia. mCD169 testing may be helpful for the rapid triage of suspected COVID-19 patients during an outbreak.
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Affiliation(s)
- Anne-Sophie Bedin
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Alain Makinson
- INSERM U1175/IRD UMI 233, IRD, Montpellier University, Montpellier, France.,Department of Infectious Diseases, Montpellier University Hospital, Montpellier, France
| | - Marie-Christine Picot
- INSERM, Centre d'Investigation Clinique 1411, Montpellier University, Montpellier, France.,Montpellier University Hospital, Montpellier, France
| | - Frank Mennechet
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Fabrice Malergue
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
| | - Amandine Pisoni
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
| | | | - Lise Montagnier
- Laboratory of Virology, Montpellier University Hospital, France
| | - Karine Bollore
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Ségolène Debiesse
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - David Morquin
- Department of Infectious Diseases, Montpellier University Hospital, Montpellier, France
| | | | - Constance Renault
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France
| | - Vincent Foulongne
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
| | - Caroline Bret
- Laboratory of Hematology, Montpellier University Hospital, France
| | - Arnaud Bourdin
- Department of Respiratory Diseases, Montpellier University Hospital, Montpellier, France.,PhyMedExp, Montpellier University, CNRS, INSERM, Montpellier, France
| | - Vincent Le Moing
- INSERM U1175/IRD UMI 233, IRD, Montpellier University, Montpellier, France.,Department of Infectious Diseases, Montpellier University Hospital, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
| | - Edouard Tuaillon
- Pathogenesis and Control of Chronic Infections, Montpellier University, INSERM, EFS, Montpellier, France.,Laboratory of Virology, Montpellier University Hospital, France
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12
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Bourgoin P, Soliveres T, Barbaresi A, Loundou A, Belkacem IA, Arnoux I, Bernot D, Loosveld M, Morange PE, Michelet P, Malergue F, Markarian T. CD169 and CD64 could help differentiate bacterial from CoVID-19 or other viral infections in the Emergency Department. Cytometry A 2021; 99:435-445. [PMID: 33491921 PMCID: PMC8014466 DOI: 10.1002/cyto.a.24314] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 10/28/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 01/16/2023]
Abstract
The identification of a bacterial, viral, or even noninfectious cause is essential in the management of febrile syndrome in the emergency department (ED), especially in epidemic contexts such as flu or CoVID-19. The aim was to assess discriminative performances of two biomarkers, CD64 on neutrophils (nCD64) and CD169 on monocytes (mCD169), using a new flow cytometry procedure, in patients presenting with fever to the ED during epidemics. Eighty five adult patients presenting with potential infection were included during the 2019 flu season in the ED of La Timone Hospital. They were divided into four diagnostic outcomes according to their clinical records: no-infection, bacterial infection, viral infection and co-infection. Seventy six patients with confirmed SARS-CoV-2 infection were also compared to 48 healthy volunteers. For the first cohort, 38 (45%) patients were diagnosed with bacterial infections, 11 (13%) with viral infections and 29 (34%) with co-infections. mCD169 was elevated in patients with viral infections, with a majority of Flu A virus or Respiratory Syncytial Virus, while nCD64 was elevated in subjects with bacterial infections, with a majority of Streptococcus pneumoniae and Escherichia coli. nCD64 and mCD169 showed 90% and 80% sensitivity, and 78% and 91% specificity, respectively, for identifying patients with bacterial or viral infections. When studied in a second cohort, mCD169 was elevated in 95% of patients with SARS-CoV-2 infections and remained at normal level in 100% of healthy volunteers. nCD64 and mCD169 have potential for accurately distinguishing bacterial and acute viral infections. Combined in an easy and rapid flow cytometry procedure, they constitute a potential improvement for infection management in the ED, and could even help for triage of patients during emerging epidemics.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France.,Aix Marseille University, INSERM, INRAE, Marseille, France
| | - Thomas Soliveres
- Department of Emergency Medicine and Intensive Care, Timone University Hospital, APHM, Marseille, France
| | - Alexandra Barbaresi
- Department of Emergency Medicine and Intensive Care, Timone University Hospital, APHM, Marseille, France
| | - Anderson Loundou
- Department of Public Health, EA3279 Self-Perceived Health Assessment Research Unit, Timone University Hospital, Aix-Marseille University, Marseille, France
| | - Inès Ait Belkacem
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France.,UMR 7280, Marseille-Luminy Immunology Center (CIML), Marseille, France
| | - Isabelle Arnoux
- Department of Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Denis Bernot
- Department of Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Marie Loosveld
- Department of Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Pierre-Emmanuel Morange
- Aix Marseille University, INSERM, INRAE, Marseille, France.,Department of Hematology Laboratory, Timone University Hospital, APHM, Marseille, France
| | - Pierre Michelet
- Aix Marseille University, INSERM, INRAE, Marseille, France.,Department of Emergency Medicine and Intensive Care, Timone University Hospital, APHM, Marseille, France
| | - Fabrice Malergue
- Department of Research and Development, Beckman Coulter Life Sciences-Immunotech, Marseille, France
| | - Thibaut Markarian
- Aix Marseille University, INSERM, INRAE, Marseille, France.,Department of Emergency Medicine and Intensive Care, Timone University Hospital, APHM, Marseille, France
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13
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Vitte J, Diallo AB, Boumaza A, Lopez A, Michel M, Allardet-Servent J, Mezouar S, Sereme Y, Busnel JM, Miloud T, Malergue F, Morange PE, Halfon P, Olive D, Leone M, Mege JL. A Granulocytic Signature Identifies COVID-19 and Its Severity. J Infect Dis 2020; 222:1985-1996. [PMID: 32941618 PMCID: PMC7543529 DOI: 10.1093/infdis/jiaa591] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 09/15/2020] [Indexed: 01/02/2023] Open
Abstract
Background An unbiased approach of SARS-CoV-2-induced immune dysregulation has not been undertaken so far. We aimed to identify previously unreported immune markers able to discriminate COVID-19 patients from healthy controls and to predict mild and severe disease. Methods An observational, prospective, multicentric study was conducted in patients with confirmed COVID-19: mild/moderate (n=7) and severe (n=19). Immunophenotyping of whole blood leukocytes was performed in patients upon hospital ward or intensive care unit admission and in healthy controls (n=25). Clinically relevant associations were identified through unsupervised analysis. Results Granulocytic (neutrophil, eosinophil and basophil) markers were enriched during COVID-19 and discriminated between mild and severe patients. Increased counts of CD15 +CD16 + neutrophils, decreased granulocytic expression of integrin CD11b, and Th2-related CRTH2 downregulation in eosinophils and basophils established a COVID-19 signature. Severity was associated with the emergence of PDL1 checkpoint expression in basophils and eosinophils. This granulocytic signature was accompanied by monocyte and lymphocyte immunoparalysis. Correlation with validated clinical scores supported pathophysiological relevance. Conclusion Phenotypic markers of circulating granulocytes are strong discriminators between infected and uninfected individuals as well as between severity stages. COVID-19 alters the frequency and functional phenotypes of granulocyte subsets with the emergence of CRTH2 as a disease biomarker.
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Affiliation(s)
- Joana Vitte
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France
| | - Aïssatou Bailo Diallo
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France
| | - Asma Boumaza
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France
| | - Alexandre Lopez
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France.,Aix-Marseille University, APHM Hôpitaux Universitaires de Marseille, Hôpital Nord, Service d'Anesthésie et de Réanimation, Marseille, France
| | - Moïse Michel
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France
| | | | | | - Youssouf Sereme
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France
| | | | | | | | - Pierre-Emmanuel Morange
- Centre de Recherche en CardioVasculaire et Nutrition, Aix-Marseille University INSERM, INRAE, APHM Hôpitaux Universitaires de Marseille, Hôpital Timone, Service d'Hématologie, Marseille, France
| | - Philippe Halfon
- Internal Medicine and Infectious Diseases Department, Hôpital Européen-Laboratoire Alphabio, Marseille, France
| | - Daniel Olive
- Aix-Marseille University, Institut Paoli-Calmettes, Cancer Research Center of Marseille, INSERM U1068, CNRS U7258, Marseille, France
| | - Marc Leone
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France.,Aix-Marseille University, APHM Hôpitaux Universitaires de Marseille, Hôpital Nord, Service d'Anesthésie et de Réanimation, Marseille, France
| | - Jean-Louis Mege
- Aix-Marseille University, Institut de Recherche pour le Développement, APHM Hôpitaux Universitaires de Marseille, UMR-D258 Microbes, Évolution, Phylogénie et Infection, Marseille, France.,Institut Hospitalo-universitaire, Méditerranée Infection, Marseille, France.,Aix-Marseille University, APHM Hôpitaux Universitaires de Marseille, Hôpital de la Conception, Service d'Immunologie, Marseille, France
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14
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Bourgoin P, Lediagon G, Arnoux I, Bernot D, Morange PE, Michelet P, Malergue F, Markarian T. Flow cytometry evaluation of infection-related biomarkers in febrile subjects in the emergency department. Future Microbiol 2020; 15:189-201. [PMID: 32065550 DOI: 10.2217/fmb-2019-0256] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [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: 01/08/2023] Open
Abstract
Aim: In an Emergency Department (ED), the etiological identification of infected subjects is essential. 13 infection-related biomarkers were assessed using a new flow cytometry procedure. Materials & methods: If subjects presented with febrile symptoms at the ED, 13 biomarkers' levels, including CD64 on neutrophils (nCD64) and CD169 on monocytes (mCD169), were tested and compared with clinical records. Results: Among 50 subjects, 78% had bacterial infections and 8% had viral infections. nCD64 showed 82% sensitivity and 91% specificity for identifying subjects with bacterial infections. mCD169, HLA-ABC ratio and HLA-DR on monocytes had high values in subjects with viral infections. Conclusion: Biomarkers showed promising performances to improve the ED's infectious stratification.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, 13009 Marseille, France.,C2VN INSERM-INRA, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille, France
| | - Guillaume Lediagon
- Adult Emergency Unit, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Isabelle Arnoux
- Hematology Laboratory, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Denis Bernot
- Hematology Laboratory, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Pierre-Emmanuel Morange
- C2VN INSERM-INRA, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille, France.,Hematology Laboratory, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Pierre Michelet
- Adult Emergency Unit, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Fabrice Malergue
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, 13009 Marseille, France
| | - Thibaut Markarian
- Adult Emergency Unit, La Timone Hospital, APHM, 264 Rue Saint Pierre, 13385 Marseille, France
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15
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Bourgoin P, Biéchelé G, Ait Belkacem I, Morange PE, Malergue F. Role of the interferons in CD64 and CD169 expressions in whole blood: Relevance in the balance between viral- or bacterial-oriented immune responses. Immun Inflamm Dis 2020; 8:106-123. [PMID: 32031762 PMCID: PMC7016842 DOI: 10.1002/iid3.289] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 01/21/2020] [Accepted: 01/22/2020] [Indexed: 12/13/2022]
Abstract
Introduction CD64 expression increases on neutrophils during bacterial infections. Recently an increase in CD169 expression has been discovered on monocytes during viral infections. Generally, interferons α (IFNsα) and IFNsγ are key drivers of the infectious host immune response. The purpose of this study was to explore if a link exists between these IFNs and both biomarkers. Methods Whole blood samples from healthy volunteers were stimulated with either IFNs, interleukins, or infectious extracts, to mimic an infectious state. Expressions of CD64 and CD169 were assessed in these samples by multiple flow cytometry methods, over precise kinetics. Results The expression of CD64 was statistically higher in samples stimulated with IFNγ, and CD169 in those stimulated with IFNα (and all other type I IFNs). Surface expressions are directly induced by their respective IFNs via Janus kinase/signal transducer and activator of transduction pathways within 6 to 8 hours of incubation. Mixing both types of IFNs seemed to indicate that they partially inhibit each other. Conclusions The induction of CD169 on monocytes and CD164 on neutrophils by type I and type II IFNs confirms the relevance of these markers for assessing between a viral‐ vs bacterial‐oriented immune response.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France.,C2VN INSERM-INRAE, Aix-Marseille University, Marseille, France
| | - Géraldine Biéchelé
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
| | - Inès Ait Belkacem
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France.,UMR 7280, Center for Marseille-Luminy Immunology (CIML), Marseille, France
| | - Pierre-Emmanuel Morange
- C2VN INSERM-INRAE, Aix-Marseille University, Marseille, France.,Laboratory of Hematology, La Timone Hospital (AP-HM), Marseille, France
| | - Fabrice Malergue
- Department of Research and Development, Immunotech-Beckman Coulter, Marseille, France
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16
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Bourgoin P, Soliveres T, Ahriz D, Arnoux I, Meisel C, Unterwalder N, Morange PE, Michelet P, Malergue F, Markarian T. Clinical research assessment by flow cytometry of biomarkers for infectious stratification in an Emergency Department. Biomark Med 2019; 13:1373-1386. [PMID: 31617736 DOI: 10.2217/bmm-2019-0214] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Aim: Management of patients with infections within the Emergency Department (ED) is challenging for practitioners, as the identification of infectious causes remains difficult with current techniques. A new combination of two biomarkers was tested with a new rapid flow cytometry technique. Materials & methods: Subjects from the ED were tested for their CD64 on neutrophils (nCD64) and CD169 on monocytes (mCD169) levels and results were compared to their clinical records. Results: Among 139 patients, 29% had confirmed bacterial infections and 5% viral infections. nCD64 and mCD169 respectively showed 88 and 86% sensitivity and 90 and 100% specificity for identifying subjects in bacterial or viral conditions. Conclusion: This point-of-care technique could allow better management of patients in the ED.
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Affiliation(s)
- Pénélope Bourgoin
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, 13009 Marseille, France.,C2VN Department, INSERM-INRA, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille, France
| | - Thomas Soliveres
- Adult Emergency Department, La Timone Hospital, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Dalia Ahriz
- Adult Emergency Department, La Timone Hospital, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Isabelle Arnoux
- Hematology Laboratory Department, La Timone Hospital, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Christian Meisel
- Department of Medical Immunology, Charité - University Medicine Berlin, Augustenburger Platz 1, 13353 Berlin, Germany.,Department of Immunology, Labor Berlin - Charité Vivantes GmbH, Sylter Strasse 2, 13353 Berlin, Germany
| | - Nadine Unterwalder
- Department of Immunology, Labor Berlin - Charité Vivantes GmbH, Sylter Strasse 2, 13353 Berlin, Germany
| | - Pierre-Emmanuel Morange
- C2VN Department, INSERM-INRA, Aix-Marseille University, 27 Boulevard Jean Moulin, 13385 Marseille, France.,Hematology Laboratory Department, La Timone Hospital, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Pierre Michelet
- Adult Emergency Department, La Timone Hospital, 264 Rue Saint Pierre, 13385 Marseille, France
| | - Fabrice Malergue
- Department of Research & Development, Beckman Coulter Life Sciences-Immunotech, 130 Avenue de Lattre de Tassigny, 13009 Marseille, France
| | - Thibaut Markarian
- Adult Emergency Department, La Timone Hospital, 264 Rue Saint Pierre, 13385 Marseille, France
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17
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Fauré S, Van Agthoven A, Bernot D, Altié A, Grino M, Alessi MC, Malergue F, Canault M. A Novel Rapid Method of Red Blood Cell and Platelet Permeabilization and Staining for Flow Cytometry Analysis. Cytometry B Clin Cytom 2019; 96:426-435. [PMID: 31301165 DOI: 10.1002/cyto.b.21839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND Flow cytometry essentially focuses on surface-expressed proteins, with few protocols being devoted to intracellular components. We evaluated a two-step procedure using new formaldehyde-free permeabilization and staining reagents that allow the staining of platelets and red blood cells (RBCs) from whole blood. METHODS Citrated blood was treated with the new staining protocol (NSP) or control reagent (phosphate-buffered solution bovine serum albumin) and stained with antibodies against surface or intracellular markers. The effects of the NSP on cell integrity, morphology, and content were evaluated. RESULTS The NSP slightly reduced the cell count (~20%) and changed the RBC morphology with a 42% mean diameter reduction. Conversely, the NSP did not affect platelet discoid morphology and led to a minor size decrease (11%). These morphological changes neither impelled a gating strategy modification nor interfered with the discrimination among populations based on surface markers. The NSP provided intracellular access to all the tested antigens: CD62P, FXIII, and CD63 in platelets and glycated and fetal hemoglobin (HbA1c and HbF) and nucleic acid in RBCs. The NSP gave excellent intra-assay precision with minimal impact on cell morphology and fluorescence labelling over time (up to 24 h). CONCLUSIONS With the ability to detect surface and intracellular antigens through a rapid preparation protocol without washing steps or toxic formaldehyde treatment, this NSP designed for research offers a marked improvement in the analysis of platelets and RBCs isolated directly from whole blood. Consequently, the NSP opens new avenues to investigate platelet degranulation and erythrocyte subpopulations. © 2019 International Clinical Cytometry Society.
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Affiliation(s)
- Sixtine Fauré
- Aix-Marseille Univ, INSERM, INRA, C2VN, Marseille, France.,Beckman Coulter Life Sciences Immunotech, Marseille, France
| | | | - Denis Bernot
- Centre de référence sur les pathologies plaquettaires (CRPP), CHU Timone, Marseille, France
| | | | - Michel Grino
- Aix-Marseille Univ, INSERM, INRA, C2VN, Marseille, France
| | - Marie-Christine Alessi
- Aix-Marseille Univ, INSERM, INRA, C2VN, Marseille, France.,Centre de référence sur les pathologies plaquettaires (CRPP), CHU Timone, Marseille, France
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18
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Bourgoin P, Hayman J, Rimmelé T, Venet F, Malergue F, Monneret G. A novel one-step extracellular staining for flow cytometry: Proof-of-concept on sepsis-related biomarkers. J Immunol Methods 2019; 470:59-63. [DOI: 10.1016/j.jim.2019.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/25/2019] [Accepted: 05/08/2019] [Indexed: 12/30/2022]
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19
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Lopresti A, Malergue F, Bertucci F, Liberatoscioli ML, Garnier S, DaCosta Q, Finetti P, Gilabert M, Raoul JL, Birnbaum D, Acquaviva C, Mamessier E. Sensitive and easy screening for circulating tumor cells by flow cytometry. JCI Insight 2019; 5:128180. [PMID: 31194699 DOI: 10.1172/jci.insight.128180] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Circulating Tumor Cells (CTCs) represent an easy, repeatable and representative access to information regarding solid tumors. However, their detection remains difficult because of their paucity, their short half-life, and the lack of reliable surface biomarkers. Flow cytometry (FC) is a fast, sensitive and affordable technique, ideal for rare cells detection. Adapted to CTCs detection (i.e. extremely rare cells), most FC-based techniques require a time-consuming pre-enrichment step, followed by a 2-hours staining procedure, impeding on the efficiency of CTCs detection. We overcame these caveats and reduced the procedure to less than one hour, with minimal manipulation. First, cells were simultaneously fixed, permeabilized, then stained. Second, using low-speed FC acquisition conditions and two discriminators (cell size and pan-cytokeratin expression), we suppressed the pre-enrichment step. Applied to blood from donors with or without known malignant diseases, this protocol ensures a high recovery of the cells of interest independently of their epithelial-mesenchymal plasticity and can predict which samples are derived from cancer donors. This proof-of-concept study lays the bases of a sensitive tool to detect CTCs from a small amount of blood upstream of in-depth analyses.
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Affiliation(s)
- Alexia Lopresti
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Fabrice Malergue
- Research, Beckman Coulter Life Sciences, Marseille, Marseille, France
| | - François Bertucci
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France.,Service d'Oncologie Médicale, Institut Paoli-Calmettes, Marseille, France
| | - Maria Lucia Liberatoscioli
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Severine Garnier
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Quentin DaCosta
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Pascal Finetti
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Marine Gilabert
- Service d'Oncologie Médicale, Institut Paoli-Calmettes, Marseille, France
| | - Jean Luc Raoul
- Service d'Oncologie Médicale, Institut Paoli-Calmettes, Marseille, France
| | - Daniel Birnbaum
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Claire Acquaviva
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
| | - Emilie Mamessier
- Predictive Oncology Laboratory, Cancer Research Center of Marseille (CRCM), Inserm U1068, CNRS UMR7258, Institut Paoli-Calmettes, Aix Marseille Université, Marseille, France
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20
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Varvat J, Epinat M, Montmartin A, Accassat S, Boutet C, Garcin A, Li G, Malergue F, Chapelle C, Laporte S, Garnier P, Lambert C, Mallouk N, Mismetti P. Role of platelet α2-adrenoreceptor in biological low response to Clopidogrel for patients with non cardioembolic ischemic stroke or transient ischemic attack. Am J Transl Res 2018; 10:2712-2721. [PMID: 30210708 PMCID: PMC6129516] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Accepted: 07/04/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND AND PURPOSE Low biological response to Clopidogrel prescribed after non cardioembolic ischemic stroke or transient ischemic attack (TIA) is a major clinical problem and could explain the recurrence of vascular events. Platelet α2-adrenoreceptors are involved in the high residual platelet reactivity in stable coronary artery disease patients on dual antiplatelet therapy. In the present study we investigated the impact of platelet α2-adrenoreceptors on ADP-induced platelet aggregation and on ADP-induced platelet membrane CD62P (P-selectin) expression, a marker of platelet activation on blood samples from patients hospitalized at the acute phase of a non cardioembolic ischemic stroke or TIA. METHODS 72 consecutive patients were prospectively recruited over the course of two years in a monocentric study. Patients received a daily 75 mg-dose of Clopidogrel. ADP-induced platelet aggregation was measured alone, with low dose epinephrine or with atipamezole, a selective α blocker of α2-adrenoreceptors, by Light Transmittance Aggregometry (LTA). Platelet membrane expression of P-selectin was measured by flow cytometry with either ADP alone or combined with epinephrine. RESULTS Epinephrine at low dose stimulated ADP-induced platelet membrane expression of CD62P whereas Atipamezole significantly inhibited 10 µM ADP-induced platelet aggregation. CONCLUSIONS Our study showed the role of platelet α2-adrenoreceptors in biological low response to Clopidogrel for patients hospitalized for a non-cardioembolic ischemic stroke or TIA. Atipamezole could improve the status of biological response to Clopidogrel.
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Affiliation(s)
- Jérôme Varvat
- Neurovascular Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
| | - Magali Epinat
- Neurovascular Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
| | - Aurélie Montmartin
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
| | - Sandrine Accassat
- Vascular and Therapeutic Medicine Department, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- Inserm, CIC1408Saint-Etienne F-42055, France
| | - Claire Boutet
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
- Radiology Department, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
| | - Arnauld Garcin
- Clinical Research, Innovation and Pharmacology Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
| | - Guorong Li
- Urology Department, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
| | | | - Céline Chapelle
- Clinical Research, Innovation and Pharmacology Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
| | - Silvy Laporte
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
- Inserm, CIC1408Saint-Etienne F-42055, France
- Clinical Research, Innovation and Pharmacology Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
| | - Pierre Garnier
- Neurovascular Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
| | - Claude Lambert
- Immunology Department, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
| | - Nora Mallouk
- Vascular and Therapeutic Medicine Department, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- University of Lyon, UJM-Saint-Etienne, PRISMe, CMESSaint-Etienne F-42023, France
| | - Patrick Mismetti
- Vascular and Therapeutic Medicine Department, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- Neurovascular Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
- University of Lyon, UJM-Saint-Etienne, Inserm, Sainbiose U1089Saint-Etienne F-42023, France
- Clinical Research, Innovation and Pharmacology Unit, Saint-Etienne University Hospital Center, North HospitalSaint-Etienne F-42055, France
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21
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Paganelli F, Resseguier N, Marlinge M, Laine M, Malergue F, Kipson N, Armangau P, Pezzoli N, Kerbaul F, Bonello L, Mottola G, Fenouillet E, Guieu R, Ruf J. Specific Pharmacological Profile of A 2A Adenosine Receptor Predicts Reduced Fractional Flow Reserve in Patients With Suspected Coronary Artery Disease. J Am Heart Assoc 2018; 7:JAHA.117.008290. [PMID: 29654194 PMCID: PMC6015402 DOI: 10.1161/jaha.117.008290] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background The rapid and reliable exclusion of myocardial revascularization is a major unmet clinical need in patients with suspected coronary artery disease (CAD) and non‐contributive electrocardiography and troponin. Non‐invasive tests have high rates of false positives and negatives, and there is no biomarker to assess myocardial ischemia. The presence of spare adenosine A2A receptors (A2AR)—characterized by a high dissociation constant/half maximal effective concentration (KD/EC50) ratio—expressed on peripheral blood mononuclear cells (PBMC) has been associated with ischemia during exercise stress testing in patients with CAD. In this work, we investigated the diagnostic accuracy of spare A2AR versus fractional flow reserve (FFR) in patients with suspected CAD. Methods and Results Sixty patients with suspected CAD, but non‐contributive electrocardiography and troponin, were consecutively enrolled in this prospective study. The binding (KD), functional response (cyclic adenosine monophosphate [cAMP] production; EC50) on PBMC A2AR were compared with FFR results. Patients were divided into 3 groups: 17 (group 1) with normal coronary angiography (n=13) or stenosis <20% (n=4); 21 with CAD and non‐significant FFR (group 2); and 22 with CAD and significant FFR (group 3). Median KD/EC50 was 6‐fold higher in group 3 (4.20; interquartile range: 2.81–5.00) than group 2 (0.66; interquartile range: 0.47–1.25) and 7‐fold higher than group 1 (0.60; interquartile range: 0.30–0.66). Conclusions In patients with suspected CAD and non‐contributive electrocardiography and troponin, the absence of spare A2AR on PBMC may help to rule out myocardial ischemia. Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier: NCT03218007.
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Affiliation(s)
- Franck Paganelli
- Department of Cardiology, Hopital Nord, AP-HM, Aix-Marseille University, Marseille, France
| | - Noémie Resseguier
- Chronic Diseases and Quality of Life Research Unit, EA 3279 Public Health, Aix-Marseille University, Marseille, France
| | | | - Marc Laine
- Department of Cardiology, Hopital Nord, AP-HM, Aix-Marseille University, Marseille, France
| | | | | | - Pauline Armangau
- Department of Cardiology, Hopital Nord, AP-HM, Aix-Marseille University, Marseille, France
| | - Nicolas Pezzoli
- Laboratory of Biochemistry, Hopital Nord, AP-HM, Aix-Marseille University, Marseille, France
| | | | - Laurent Bonello
- Department of Cardiology, Hopital Nord, AP-HM, Aix-Marseille University, Marseille, France
| | | | | | - Régis Guieu
- UMR MD2, Aix-Marseille University, Marseille, France
| | - Jean Ruf
- UMR MD2, Aix-Marseille University, Marseille, France
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22
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Saultier P, Vidal L, Canault M, Bernot D, Falaise C, Pouymayou C, Bordet JC, Saut N, Rostan A, Baccini V, Peiretti F, Favier M, Lucca P, Deleuze JF, Olaso R, Boland A, Morange PE, Gachet C, Malergue F, Fauré S, Eckly A, Trégouët DA, Poggi M, Alessi MC. Macrothrombocytopenia and dense granule deficiency associated with FLI1 variants: ultrastructural and pathogenic features. Haematologica 2017; 102:1006-1016. [PMID: 28255014 PMCID: PMC5451332 DOI: 10.3324/haematol.2016.153577] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [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: 09/06/2016] [Accepted: 02/24/2017] [Indexed: 12/20/2022] Open
Abstract
Congenital macrothrombocytopenia is a family of rare diseases, of which a significant fraction remains to be genetically characterized. To analyze cases of unexplained thrombocytopenia, 27 individuals from a patient cohort of the Bleeding and Thrombosis Exploration Center of the University Hospital of Marseille were recruited for a high-throughput gene sequencing study. This strategy led to the identification of two novel FLI1 variants (c.1010G>A and c.1033A>G) responsible for macrothrombocytopenia. The FLI1 variant carriers’ platelets exhibited a defect in aggregation induced by low-dose adenosine diphosphate (ADP), collagen and thrombin receptor-activating peptide (TRAP), a defect in adenosine triphosphate (ATP) secretion, a reduced mepacrine uptake and release and a reduced CD63 expression upon TRAP stimulation. Precise ultrastructural analysis of platelet content was performed using transmission electron microscopy and focused ion beam scanning electron microscopy. Remarkably, dense granules were nearly absent in the carriers’ platelets, presumably due to a biogenesis defect. Additionally, 25–29% of the platelets displayed giant α-granules, while a smaller proportion displayed vacuoles (7–9%) and autophagosome-like structures (0–3%). In vitro study of megakaryocytes derived from circulating CD34+ cells of the carriers revealed a maturation defect and reduced proplatelet formation potential. The study of the FLI1 variants revealed a significant reduction in protein nuclear accumulation and transcriptional activity properties. Intraplatelet flow cytometry efficiently detected the biomarker MYH10 in FLI1 variant carriers. Overall, this study provides new insights into the phenotype, pathophysiology and diagnosis of FLI1 variant-associated thrombocytopenia.
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Affiliation(s)
- Paul Saultier
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Léa Vidal
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | | | - Denis Bernot
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Céline Falaise
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Catherine Pouymayou
- APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | | | - Noémie Saut
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Agathe Rostan
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Véronique Baccini
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | | | - Marie Favier
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Pauline Lucca
- ICAN Institute for Cardiometabolism and Nutrition, Paris, France.,Inserm, UMR_S 1166, Team Genomics and Pathophysiology of Cardiovascular Diseases, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie (UPMC Univ Paris 06), UMR_S 1166, France
| | | | - Robert Olaso
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | - Anne Boland
- Centre National de Génotypage, Institut de Génomique, CEA, Evry, France
| | - Pierre Emmanuel Morange
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
| | - Christian Gachet
- UMR_S949 INSERM, Strasbourg, France.,Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), France.,Université de Strasbourg, Marseille, France
| | - Fabrice Malergue
- Beckman Coulter Immunotech, Life Sciences Global Assay and Applications Development, Marseille, France
| | - Sixtine Fauré
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Anita Eckly
- UMR_S949 INSERM, Strasbourg, France.,Etablissement Français du Sang (EFS)-Alsace, Strasbourg, France.,Fédération de Médecine Translationnelle de Strasbourg (FMTS), France.,Université de Strasbourg, Marseille, France
| | - David-Alexandre Trégouët
- ICAN Institute for Cardiometabolism and Nutrition, Paris, France.,Inserm, UMR_S 1166, Team Genomics and Pathophysiology of Cardiovascular Diseases, Paris, France.,Sorbonne Universités, Université Pierre et Marie Curie (UPMC Univ Paris 06), UMR_S 1166, France
| | - Marjorie Poggi
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France
| | - Marie-Christine Alessi
- Aix Marseille Univ, INSERM, INRA, NORT, Marseille, France.,APHM, CHU Timone, French Reference Center on Inherited Platelet Disorders, Marseille, France
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23
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Coppin E, Malergue F, Thibult ML, Scifo C, Favre C, Nunès JA. Flow cytometric analysis of intracellular phosphoproteins in human monocytes. Cytometry 2015; 92:207-210. [DOI: 10.1002/cyto.b.21207] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 11/18/2014] [Accepted: 11/20/2014] [Indexed: 11/05/2022]
Affiliation(s)
- Emilie Coppin
- Inserm, U1068, Centre de Recherche en Cancérologie de Marseille; Marseille France
- Institut Paoli-Calmettes; Marseille France
- CNRS, UMR7258, Centre de Recherche en Cancérologie de Marseille; Marseille France
- Aix-Marseille Université, UM105; Marseille France
| | - Fabrice Malergue
- Beckman Coulter Immunotech, Life Sciences Global Assay and Applications Development; Marseille France
| | - Marie-Laure Thibult
- Inserm, U1068, Centre de Recherche en Cancérologie de Marseille; Marseille France
- Institut Paoli-Calmettes; Marseille France
- CNRS, UMR7258, Centre de Recherche en Cancérologie de Marseille; Marseille France
- Aix-Marseille Université, UM105; Marseille France
| | - Caroline Scifo
- Beckman Coulter Immunotech, Life Sciences Global Assay and Applications Development; Marseille France
| | - Cédric Favre
- Beckman Coulter Immunotech, Life Sciences Global Assay and Applications Development; Marseille France
| | - Jacques A. Nunès
- Inserm, U1068, Centre de Recherche en Cancérologie de Marseille; Marseille France
- Institut Paoli-Calmettes; Marseille France
- CNRS, UMR7258, Centre de Recherche en Cancérologie de Marseille; Marseille France
- Aix-Marseille Université, UM105; Marseille France
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24
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Malergue F, van Agthoven A, Scifo C, Egan D, Strous GJ. Automation of a Phospho-STAT5 Staining Procedure for Flow Cytometry for Application in Drug Discovery. ACTA ACUST UNITED AC 2014; 20:416-21. [DOI: 10.1177/1087057114555477] [Citation(s) in RCA: 6] [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: 01/23/2023]
Abstract
Drug discovery often requires the screening of compound libraries on tissue cultured cells. Some major targets in drug discovery belong to signal transduction pathways, and PerFix EXPOSE* allows easy flow cytometry phospho assays. We thus investigated the possibility to further simplify and automate this assay, to allow the direct screening of drugs targeting signaling pathways. We show here the sensitivity of this fully automated assay on human growth hormone (hGH)-driven JAK/STAT5-activated IM-9 cells, and we discuss the throughput of this system, which is compatible with medium-throughput drug screening. Because the kit works directly on whole blood samples, ex-vivo assays are also possible with this approach, which could allow for the screening of drugs under more physiological conditions.
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Affiliation(s)
- Fabrice Malergue
- Beckman Coulter Life Science, Inc., Global Assay and Applications Development, Marseille, France
| | - Andreas van Agthoven
- Beckman Coulter Life Science, Inc., Global Assay and Applications Development, Marseille, France
| | - Caroline Scifo
- Beckman Coulter Life Science, Inc., Global Assay and Applications Development, Marseille, France
| | - Dave Egan
- Department of Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Ger J. Strous
- Department of Cell Biology, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
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Malergue F, Mallet V, Scifo C, Van Agthoven A, Miloud T, Montero-Julian FA. FoxP3+ Tregs cells sensitivity to low doses of IL-2 can be rapidly and easily monitored by p-STAT-5 detection in ex-vivo whole blood samples. (P1211). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.188.8] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Introduction: Phospho-epitopes are difficult to detect by flow cytometry, currently requiring dedicated techniques and buffers, a total work time of 2 to 4 hours, 37°C and ice incubations, and 4 to 8 wash steps. The reference methods also uses methanol which is toxic for the user and harmful for the other cell markers, what compromises some multi-parametric studies. The FoxP3 marker is incompatible with “harsh” P-epitopes detection methods, rendering even more challenging the studies of Tregs functions. Methods: Here, we used a new commercially available kit; named PerFix EXPOSE (Phospho Epitopes Exposure Kit; for Research Use Only) based on multiple innovations in the permeabilization, staining, and wash steps. It is devoid of methanol and supports staining of all common P-epitopes with one single procedure of about 1 hour. Since many extra-cellular markers can be combined together with the anti-phospho markers, we evaluated also various FoxP3 clones and conjugates, and tried some procedure optimisations. The best conditions were then used to analyse the ex-vivo functionality of FoxP3+ cells: The IL-2 signalling pathway especially. Results: PerFix EXPOSE allows for the simultaneous detection of some antigens that are otherwise incompatible, such as FOXP3 and p-STATs. An IL-2 dose-response curve could be easily generated directly from fresh whole blood that confirmed on normal donors a 10 to 100-fold difference in sensitivity to IL-2 between Tregs and other T cells.
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Affiliation(s)
- Fabrice Malergue
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
| | - Valérie Mallet
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
| | - Caroline Scifo
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
| | - Andreas Van Agthoven
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
| | - Tewfik Miloud
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
| | - Felix A Montero-Julian
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
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Malergue F, Khemici L, Montero-Julian FA. Simple and robust whole blood staining procedure using PerFix-nc reagents generates unprecedented FOXP3 signal/noise ratio. (P1053). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.139.16] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
FOXP3 is a nuclear antigen expressed specifically in regulatory T cells (Tregs). Tregs play critical role in the maintenance of the dominant self-tolerance and have been subject of extensive research effort for the last two decades. Today the detection of FOXP3 is laborious, time consuming (3-4 hours) and poorly reproducible. A new commercially available method, named PerFix-nc, allows simultaneous intra- and extra-cellular staining without any wash step. This new kit allows for the reduction of the workflow to 45 min. In this study we aimed at the optimization of the PerFix-nc protocol for the detection of FOXP3. We evaluated various clones from various vendors, optimizing titration and incubation time, and adding some extra washing steps. Signal to noise ratio at least 40% better than the one obtained for the same samples with reference procedure. Improved cell scattered separation compared to reference method was revealed. Purity and recovery were also significantly increased. Furthermore the method was very robust and demonstrated excellent repeatability with respect to percentage of FOXP3-positive cells and signal to noise. Total workflow was reduced from 3-4 hours in reference method to about 95 min. In conclusion, the novel PerFix-nc reagent significantly improves FOXP3 detection in several different ways: it simplifies FOXP3 intracellular staining procedure, generates robust and highly reproducible results, and provides unprecedented signal to noise ratio.
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Affiliation(s)
- Fabrice Malergue
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
| | - Laeticia Khemici
- 1Global Assay and Applications Development, Beckman-Coulter Life Science, Marseille, France
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Hagenbeek TJ, Naspetti M, Malergue F, Garçon F, Nunès JA, Cleutjens KBJM, Trapman J, Krimpenfort P, Spits H. The loss of PTEN allows TCR alphabeta lineage thymocytes to bypass IL-7 and Pre-TCR-mediated signaling. ACTA ACUST UNITED AC 2004; 200:883-94. [PMID: 15452180 PMCID: PMC2213281 DOI: 10.1084/jem.20040495] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The phosphatase and tensin homologue deleted on chromosome 10 (PTEN) negatively regulates cell survival and proliferation mediated by phosphoinositol 3 kinases. We have explored the role of the phosphoinositol(3,4,5)P3-phosphatase PTEN in T cell development by analyzing mice with a T cell-specific deletion of PTEN. Pten(flox/flox)Lck-Cre mice developed thymic lymphomas, but before the onset of tumors, they showed normal thymic cellularity. To reveal a regulatory role of PTEN in proliferation of developing T cells we have crossed PTEN-deficient mice with mice deficient for interleukin (IL)-7 receptor and pre-T cell receptor (TCR) signaling. Analysis of mice deficient for Pten and CD3gamma; Pten and gammac; or Pten, gammac, and Rag2 revealed that deletion of PTEN can substitute for both IL-7 and pre-TCR signals. These double- and triple-deficient mice all develop normal levels of CD4CD8 double negative and double positive thymocytes. These data indicate that PTEN is an important regulator of proliferation of developing T cells in the thymus.
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Affiliation(s)
- Thijs J Hagenbeek
- Department of Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands
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Berruyer C, Martin FM, Castellano R, Macone A, Malergue F, Garrido-Urbani S, Millet V, Imbert J, Duprè S, Pitari G, Naquet P, Galland F. Vanin-1-/- mice exhibit a glutathione-mediated tissue resistance to oxidative stress. Mol Cell Biol 2004; 24:7214-24. [PMID: 15282320 PMCID: PMC479710 DOI: 10.1128/mcb.24.16.7214-7224.2004] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2004] [Revised: 02/09/2004] [Accepted: 05/06/2004] [Indexed: 11/20/2022] Open
Abstract
Vanin-1 is an epithelial ectoenzyme with pantetheinase activity and generating the amino-thiol cysteamine through the metabolism of pantothenic acid (vitamin B(5)). Here we show that Vanin-1(-/-) mice, which lack cysteamine in tissues, exhibit resistance to oxidative injury induced by whole-body gamma-irradiation or paraquat. This protection is correlated with reduced apoptosis and inflammation and is reversed by treating mutant animals with cystamine. The better tolerance of the Vanin-1(-/-) mice is associated with an enhanced gamma-glutamylcysteine synthetase activity in liver, probably due to the absence of cysteamine and leading to elevated stores of glutathione (GSH), the most potent cellular antioxidant. Consequently, Vanin-1(-/-) mice maintain a more reducing environment in tissue after exposure to irradiation. In normal mice, we found a stress-induced biphasic expression of Vanin-1 regulated via antioxidant response elements in its promoter region. This process should finely tune the redox environment and thus change an early inflammatory process into a late tissue repair process. We propose Vanin-1 as a key molecule to regulate the GSH-dependent response to oxidative injury in tissue at the epithelial level. Therefore, Vanin/pantetheinase inhibitors could be useful for treatment of damage due to irradiation and pro-oxidant inducers.
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Affiliation(s)
- C Berruyer
- Centre d'Immunologie de Marseille-Luminy CNRS-INSERM-Université de la Méditerranée, 13288 Marseille, France
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Martin F, Penet MF, Malergue F, Lepidi H, Dessein A, Galland F, de Reggi M, Naquet P, Gharib B. Vanin-1(-/-) mice show decreased NSAID- and Schistosoma-induced intestinal inflammation associated with higher glutathione stores. J Clin Invest 2004; 113:591-7. [PMID: 14966568 PMCID: PMC338265 DOI: 10.1172/jci19557] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2003] [Accepted: 12/16/2003] [Indexed: 12/19/2022] Open
Abstract
Vanin-1 is a membrane-anchored pantetheinase highly expressed in the gut and liver. It hydrolyzes pantetheine to pantothenic acid (vitamin B5) and the low-molecular-weight thiol cysteamine. The latter is believed to be a key regulating factor of several essential metabolic pathways, acting through sulfhydryl-disulfide exchange reactions between sulfhydryl groups of the enzymes and the oxidized form, cystamine. Its physiological importance remains to be elucidated, however. To explore this point, we developed Vanin-1-deficient mice that lack free cysteamine. We examined the susceptibility of deficient mice to intestinal inflammation, either acute (NSAID administration) or chronic (Schistosoma infection). We found that Vanin-1(-/-) mice better controlled inflammatory reaction and intestinal injury in both experiments. This protection was associated with increased gamma-glutamylcysteine synthetase activity and increased stores of reduced glutathione, as well as reduced inflammatory cell activation in inflamed tissues. Oral administration of cystamine reversed all aspects of the deficient phenotype. These findings suggest that one cysteamine function is to upregulate inflammation. Consequently, the pantetheinase activity of Vanin-1 molecule could be a target for a new anti-inflammatory strategy.
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Affiliation(s)
- Florent Martin
- Centre d'Immunologie de Marseille-Luminy, Centre National de la Recherche Scientifique-Institut National de la Santé et de la Recherche Médicale, Universté de la Méditerranée, Marseille, France
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Martin F, Penet MF, Malergue F, Lepidi H, Dessein A, Galland F, de Reggi M, Naquet P, Gharib B. Vanin-1–/– mice show decreased NSAID- and Schistosoma-induced intestinal inflammation associated with higher glutathione stores. J Clin Invest 2004. [DOI: 10.1172/jci200419557] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Guillemot JC, Naspetti M, Malergue F, Montcourrier P, Galland F, Naquet P. Ep-CAM transfection in thymic epithelial cell lines triggers the formation of dynamic actin-rich protrusions involved in the organization of epithelial cell layers. Histochem Cell Biol 2001; 116:371-8. [PMID: 11702195 DOI: 10.1007/s004180100329] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/24/2001] [Indexed: 11/30/2022]
Abstract
Thymic epithelium is organized in a highly connected three-dimensional network through which thymocytes differentiate. The molecular mechanisms underlying this organization are still unknown. In thymic medulla, a major site of tolerance induction, the development of the epithelial cell net is tightly regulated by the needs of thymocyte selection. These reticulated epithelial cells express high levels of the Ep-CAM molecule. Using different thymic epithelial cell lines as a model system, we found that transfection of Ep-CAM enhances cell growth and leads to a rapid reorganization of the actin cytoskeleton by inducing the formation of numerous stress fibers and long cell protrusions. Finally, the crosslinking of the extracellular domain of a chimeric CD25ec/Ep-CAMic molecule is sufficient to trigger the formation of protrusions. These results suggest that expression of Ep-CAM might balance the organizing capacity of cadherin molecules and may be participating in the formation of a dynamic stromal cell network in the thymus.
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Affiliation(s)
- J C Guillemot
- CNRS LNB, Université de Provence, Chemin de J Aiguier, Marseille 13009, France
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Martin F, Malergue F, Pitari G, Philippe JM, Philips S, Chabret C, Granjeaud S, Mattei MG, Mungall AJ, Naquet P, Galland F. Vanin genes are clustered (human 6q22-24 and mouse 10A2B1) and encode isoforms of pantetheinase ectoenzymes. Immunogenetics 2001; 53:296-306. [PMID: 11491533 DOI: 10.1007/s002510100327] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The mouse Vanin-1 molecule plays a role in thymic reconstitution following damage by irradiation. We recently demonstrated that it is a membrane pantetheinase (EC 3.56.1.-). This molecule is the prototypic member of a larger Vanin family encoded by at least two mouse (Vanin-1 and Vanin-3) and three human (VNN1, VNN2, VNN3) orthologous genes. We now report (1) the structural characterization of the human and mouse Vanin genes and their organization in clusters on the 6q22-24 and 10A2B1 chromosomes, respectively; (2) identification of the human VNN3 gene and the demonstration that the mouse Vanin-3 molecule is secreted by cells, and (3) that the Vanin genes encode different isoforms of the mammalian pantetheinase activity. Thus, the Vanin family represents a novel class of secreted or membrane-associated ectoenzymes. We discuss here their possible role in processes pertaining to tissue repair in the context of oxidative stress.
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Affiliation(s)
- F Martin
- Centre d'Immunologie de Marseille-Luminy, INSERM-CNRS-Université de la Méditerranée, France
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Naspetti M, Martin F, Biancotto A, Malergue F, Mansuelle P, Galland F, Naquet P. A novel anti-Ep-CAM antibody to analyze the organization of thymic medulla in autoimmunity. Curr Top Microbiol Immunol 2001; 251:109-17. [PMID: 11036765 DOI: 10.1007/978-3-642-57276-0_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- M Naspetti
- Centre d'Immunologie de Marseille-Luminy INSERM U136-CNRS UMR145, Marseille, France
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Pitari G, Malergue F, Martin F, Philippe JM, Massucci MT, Chabret C, Maras B, Duprè S, Naquet P, Galland F. Pantetheinase activity of membrane-bound Vanin-1: lack of free cysteamine in tissues of Vanin-1 deficient mice. FEBS Lett 2000; 483:149-54. [PMID: 11042271 DOI: 10.1016/s0014-5793(00)02110-4] [Citation(s) in RCA: 164] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pantetheinase (EC 3.5.1.-) is an ubiquitous enzyme which in vitro has been shown to recycle pantothenic acid (vitamin B5) and to produce cysteamine, a potent anti-oxidant. We show that the Vanin-1 gene encodes pantetheinase widely expressed in mouse tissues: (1) a pantetheinase activity is specifically expressed by Vanin-1 transfectants and is immunodepleted by specific antibodies; (2) Vanin-1 is a GPI-anchored pantetheinase, and consequently an ectoenzyme; (3) Vanin-1 null mice are deficient in membrane-bound pantetheinase activity in kidney and liver; (4) in these organs, a major metabolic consequence is the absence of detectable free cysteamine; this demonstrates that membrane-bound pantetheinase is the main source of cysteamine in tissues under physiological conditions. Since the Vanin-1 molecule was previously shown to be involved in the control of thymus reconstitution following sublethal irradiation in vivo, this raises the possibility that Vanin/pantetheinase might be involved in the regulation of some immune functions maybe in the context of the response to oxidative stress.
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Affiliation(s)
- G Pitari
- Dipartmento di Biologia di Base ed Applicata Università di L'Aquila, Italy
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Malergue F, Galland F, Martin F, Mansuelle P, Aurrand-Lions M, Naquet P. A novel immunoglobulin superfamily junctional molecule expressed by antigen presenting cells, endothelial cells and platelets. Mol Immunol 1998; 35:1111-9. [PMID: 10395200 DOI: 10.1016/s0161-5890(98)00102-3] [Citation(s) in RCA: 82] [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: 12/12/2022]
Abstract
The architecture of lymphoid microenvironments depends upon complex interactions between several stromal cell types. We describe in this report the cloning of a cDNA which encodes a novel membrane molecule containing two external Ig-like domains. It is expressed at the junction between endothelial cells including HEV. It is also expressed by platelets and MHC class II+ antigen presenting cells in thymic medulla and T-cell areas in peripheral lymphoid organs. These cells which lack in RelB-deficient mice include tissue-derived dendritic, epithelial cells and macrophages. Thus, this molecule might contribute to the organization of cell junctions in different microenvironments.
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Affiliation(s)
- F Malergue
- CIML INSERM-CNRS, Université de la Méditerranée, Case 906, Marseille, France
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Galland F, Malergue F, Bazin H, Mattei MG, Aurrand-Lions M, Theillet C, Naquet P. Two human genes related to murine vanin-1 are located on the long arm of human chromosome 6. Genomics 1998; 53:203-13. [PMID: 9790769 DOI: 10.1006/geno.1998.5481] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report here the identification of two distinct human cDNAs, called VNN1 and VNN2, related to the recently described mouse Vanin-1 molecule involved in lymphocyte migration (M. Aurrand-Lions et al., 1996, Immunity 5: 391-405). Tissue distribution of the expression of these two human Vanin-like genes is differential. Since Vanin-1 shares significant homologies with human biotinidase (BTD), we describe here a new family of related genes including at least four members: mouse Vanin-1, VNN1, VNN2, and BTD. We have mapped the murine locus encompassing the Vanin-1 gene on mouse chromosome 10 in position A2B1. The two human Vanin-like genes are closely linked, since they were found on the same YAC clone and colocalized on human chromosome 6q23-q24 known to contain several genetic alterations linked to the progression of metastatic human cancers.
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Affiliation(s)
- F Galland
- Centre d'Immunologie de Marseille Luminy, Universite de la Mediterranée, Marseille Cedex 09, France
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Malergue F, Chungue E. Rapid and sensitive streptavidin-biotin amplified fluorogenic enzyme-linked immunosorbent-assay for direct detection and identification of dengue viral antigens in serum. J Med Virol 1995; 47:43-7. [PMID: 8551257 DOI: 10.1002/jmv.1890470109] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Each of the four serotypes of dengue viruses is responsible for a spectrum of illnesses that range from nonspecific febrile syndrome with good prognosis to dengue haemorrhagic fever or dengue shock syndrome. Definite diagnosis of dengue is provided by the detection of virus in acute-phase sera of patients. Virus isolation can be accomplished with mosquito cell lines or mosquito inoculations. However, these methods are time consuming and labour intensive. The reverse-transcriptase polymerase chain reaction (RT-PCR) provides a potential means of rapid diagnosis but requires specialised facilities and equipment and is expensive. Therefore a rapid, simple, sensitive, and economical method for direct detection of viral antigens in viraemic sera is needed for clinical and epidemiological investigations. An amplified fluorogenic enzyme-linked immunosorbent assay (F-ELISA) is described for the detection and identification of dengue-3 viruses in serum specimens. This assay utilizes biotinylated mouse IgG antibody directed against dengue antigens captured by anti-dengue monoclonal antibody coated onto polystyrene microplate wells. It takes advantage of the high affinity of biotin for the multivalent binding sites of streptavidin-labelled beta-galactosidase, and combines the amplification effect of biotin-streptavidin interaction with the high sensitivity of fluorogenic detection methods. Following optimisation of the procedure by reducing non-specific binding of proteins and enhancing the specific binding of antigens, F-ELISA was tested on 259 sera submitted routinely to our laboratory for confirmation of dengue diagnosis. The sensitivity of the F-ELISA was 90%, the specificity was 99% and the agreement rate was 98% between F-ELISA and virus isolation results.
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Affiliation(s)
- F Malergue
- Unité de Virologie, Institut Territorial de Recherches Médicales Louis Malardé, Tahiti, French Polynesia
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