1. A case study to dissect immunity to SARS-CoV-2 in a neonate nonhuman primate model
- Author
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Claire-Maëlle Fovet, Camille Pimienta, Mathilde Galhaut, Francis Relouzat, Natalia Nunez, Mariangela Cavarelli, Quentin Sconosciuti, Nina Dhooge, Ilaria Marzinotto, Vito Lampasona, Monica Tolazzi, Gabriella Scarlatti, Raphaël Ho Tsong Fang, Thibaut Naninck, Nathalie Dereuddre-Bosquet, Jérôme Van Wassenhove, Anne-Sophie Gallouët, Pauline Maisonnasse, Roger Le Grand, Elisabeth Menu, Nabila Seddiki, Infectious Diseases Models for Innovative Therapies (IDMIT), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Immunologie des maladies virales, auto-immunes, hématologiques et bactériennes (IMVA-HB), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay, Life and Soft, IRCCS Ospedale San Raffaele [Milan, Italy], Mucosal Immunity and Sexually Transmitted Infection Control (MISTIC), Institut Pasteur [Paris] (IP), The Fondation Bettencourt Schueller and the Region Ile-de-France contributed to the implementation of IDMIT’s facilities and imaging technologies. The NHP model of SARS-CoV-2 infection have been developed thanks to the support from REACTing, the Fondation pour la Recherche Medicale (FRM, AM-CoV-Path) The virus stock used in NHPs was obtained even through the EVAg platform (https://www.european-virus-archive.com/), funded by H2020 (653316). The work performed at IRCCS Ospedale San Raffaele (OSR) was funded by Program Project COVID-19 OSR-UniSR and Ministero della Salute (COVID-2020-12371617)., ANR-11-INBS-0008,IDMIT,Infrastructure nationale pour la modélisation des maladies infectieuses humaines(2011), ANR-10-EQPX-0002,FlowCyTech,Plateforme de phénotypage en Mass cytométrie pour l'analyse multiparamétrique de biomarqueurs complexes de l'efficacité de nouvelles stratégies thérapeutiques ou vaccinales(2010), European Project: 730964, H2020, RIA,H2020-INFRAIA-2016-1,TRANSVAC2(2017), European Project: 653316,H2020,H2020-INFRAIA-2014-2015,EVAg(2015), MENU, Elisabeth, Infrastructures - Infrastructure nationale pour la modélisation des maladies infectieuses humaines - - IDMIT2011 - ANR-11-INBS-0008 - INBS - VALID, Equipements d'excellence - Plateforme de phénotypage en Mass cytométrie pour l'analyse multiparamétrique de biomarqueurs complexes de l'efficacité de nouvelles stratégies thérapeutiques ou vaccinales - - FlowCyTech2010 - ANR-10-EQPX-0002 - EQPX - VALID, European Vaccine Research and Development Infrastructure - TRANSVAC2 - - H2020, RIA2017-05-01 - 2022-04-30 - 730964 - VALID, and European Virus Archive goes global - EVAg - - H20202015-04-01 - 2019-03-31 - 653316 - VALID
- Subjects
Primates ,[SDV]Life Sciences [q-bio] ,Immunology ,Pilot Projects ,nonhuman primate ,[SDV.IMM.II]Life Sciences [q-bio]/Immunology/Innate immunity ,children ,[SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases ,microbiota ,Animals ,Humans ,Immunology and Allergy ,Child ,[SDV.IMM.II] Life Sciences [q-bio]/Immunology/Innate immunity ,innate immunity ,[SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology ,type-I IFN ,SARS-CoV-2 ,Infant, Newborn ,COVID-19 ,[SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology ,[SDV] Life Sciences [q-bio] ,pediatric ,[SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunology ,[SDV.IMM.IA] Life Sciences [q-bio]/Immunology/Adaptive immunology ,[SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology ,[SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases ,Cytokines ,RNA, Viral ,[SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology ,neonate - Abstract
International audience; Most children are less severely affected by coronavirus-induced disease 2019 (COVID-19) than adults, and thus more difficult to study progressively. Here, we provide a neonatal nonhuman primate (NHP) deep analysis of early immune responses to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection in blood and mucosal tissues. In addition, we provide a comparison with SARS-CoV-2-infected adult NHP. Infection of the neonate resulted in a mild disease compared with adult NHPs that develop, in most cases, moderate lung lesions. In concomitance with the viral RNA load increase, we observed the development of an early innate response in the blood, as demonstrated by RNA sequencing, flow cytometry, and cytokine longitudinal data analyses. This response included the presence of an antiviral type-I IFN gene signature, a persistent and lasting NKT cell population, a balanced peripheral and mucosal IFN-γ/IL-10 cytokine response, and an increase in B cells that was accompanied with anti-SARS-CoV-2 antibody response. Viral kinetics and immune responses coincided with changes in the microbiota profile composition in the pharyngeal and rectal mucosae. In the mother, viral RNA loads were close to the quantification limit, despite the very close contact with SARS-CoV-2-exposed neonate. This pilot study demonstrates that neonatal NHPs are a relevant model for pediatric SARS-CoV-2 infection, permitting insights into the early steps of anti-SARS-CoV-2 immune responses in infants.
- Published
- 2022