0000000000462493

AUTHOR

Sébastien Légaré

showing 4 related works from this author

Is molecular mimicry the culprit in the autoimmune haemolytic anaemia affecting patients with COVID‐19?

2020

2019-20 coronavirus outbreakCoronavirus disease 2019 (COVID-19)autoantibodiesPneumonia Viralmedicine.disease_causeCulpritAutoimmunityBetacoronavirusCOVID‐19Correspondenceankirin 1PandemicHumansMedicineAnemia Hemolytic AutoimmuneChildPandemicsBetacoronavirubiologyCoronavirus InfectionSARS-CoV-2business.industryautoimmunityMolecular MimicryAutoantibodyCOVID-19Hematologyautoantibodiebiology.organism_classificationVirologyMolecular mimicryAnemia Hemolytic AutoimmuneCoronavirus InfectionsbusinessBetacoronavirusHumansevere acute respiratory syndrome coronavirus 2British Journal of Haematology
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Molecular mimicry in the post-COVID-19 signs and symptoms of neurovegetative disorders?

2021

Many individuals who have severe forms of COVID-19 experience a suite of neurovegetative signs and symptoms (eg, tachycardia) after their recovery, suggesting that the imbalance of the sympathetic-parasympathetic activity of the autonomic nervous system1 could continue for many weeks or months after respiratory symptoms stop. Moreover, a reduction of the parasympathetic tone could have a role in restricting the cholinergic anti-inflammatory pathway, thus favouring hyperinflammation and cytokine storm in the most severe phases of the disease. As reported by Guglielmo Lucchese in The Lancet Microbe,2 SARS-CoV-2 can damage the nervous system via an indirect mechanism, resulting in a high preva…

Microbiology (medical)2019-20 coronavirus outbreakCoronavirus disease 2019 (COVID-19)Settore M-PSI/02 - Psicobiologia E Psicologia Fisiologicabusiness.industrySettore BIO/16 - Anatomia UmanaSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2)Molecular MimicryCOVID-19Signs and symptomsmedicine.disease_causeMicrobiologyMolecular mimicryInfectious DiseasesVirologyImmunologymedicineHumansneurovegetative disordersbusinessThe Lancet. Microbe
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Human molecular chaperones share with SARS-CoV-2 antigenic epitopes potentially capable of eliciting autoimmunity against endothelial cells: possible…

2020

Severe acute respiratory syndrome corona virus 2 (SARS-CoV-2), the cause of COVID-19 disease, has the potential to elicit autoimmunity because mimicry of human molecular chaperones by viral proteins. We compared viral proteins with human molecular chaperones, many of which are heat shock proteins, to determine if they share amino acid-sequence segments with immunogenic-antigenic potential, which can elicit cross-reactive antibodies and effector immune cells with the capacity to damage-destroy human cells by a mechanism of autoimmunity. We identified the chaperones that can putatively participate in molecular mimicry phenomena after SARS-CoV-2 infection, focusing on those for which endotheli…

0301 basic medicineMolecular chaperonesShort CommunicationPneumonia ViralAutoimmunityBiologymedicine.disease_causeAutoantigensBiochemistryEpitopeAutoimmunity03 medical and health sciencesBetacoronavirusViral Proteins0302 clinical medicineImmune systemEndothelialitisAntigenHeat shock proteinmedicineHumansSevere acute respiratory syndrome coronavirus 2Amino Acid SequenceDatabases ProteinPandemicsHeat-Shock ProteinsEffectorImmunodominant EpitopesSARS-CoV-2Settore BIO/16 - Anatomia UmanaEndothelial CellsCOVID-19Cell BiologyCell biologyEndothelial stem cellMolecular mimicry030104 developmental biologyCoronavirus Infections030217 neurology & neurosurgeryMolecular mimicryCell Stress and Chaperones
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Molecular mimicry may explain multi-organ damage in COVID-19

2020

International audience

Kawasaki vasculitiVascular damagemedicine.disease_causeEpitopes0302 clinical medicineOR7D4PandemicSevere acute respiratory syndrome coronavirus 2Immunology and AllergyComputingMilieux_MISCELLANEOUS0303 health sciencesLeukopenia[SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM]Molecular mimicryPARP9Cross ReactionEpitopemedicine.symptomCoronavirus InfectionsHuman2019-20 coronavirus outbreakCoronavirus disease 2019 (COVID-19)AnosmiaPneumonia ViralImmunologyAnosmiaCross ReactionsBiologyAutoimmune DiseaseArticleAutoimmune DiseasesBetacoronavirus03 medical and health sciencesKawasaki vasculitismedicineHumansPandemics030304 developmental biologyBetacoronaviruPandemicSARS-CoV-2Coronavirus InfectionModels ImmunologicalCOVID-19LeukopeniaMulti organbiology.organism_classificationVirologySLC12A6Molecular mimicry030217 neurology & neurosurgeryBetacoronavirusAutoimmunity Reviews
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