Your browser doesn't support javascript.
loading
Humoral immune responses against SARS-CoV-2 Spike variants after mRNA vaccination in solid organ transplant recipients
Alexandra Tauzin; Guillaume Beaudoin-Bussieres; Shang Yu Gong; Debashree Chatterjee; Gabrielle Gendron-Lepage; Catherine Bourassa; Guillaume Goyette; Normand Racine; Zineb Khrifi; Julie Turgeon; Cecile Tremblay; Valerie Martel-Laferriere; Daniel E Kaufmann; Marc Cloutier; Renee Bazin; Ralf E. Duerr; Melanie Dieude; Marie-Josee Hebert; Andres Finzi.
Afiliação
  • Alexandra Tauzin; CRCHUM
  • Guillaume Beaudoin-Bussieres; CRCHUM
  • Shang Yu Gong; CRCHUM
  • Debashree Chatterjee; CRCHUM
  • Gabrielle Gendron-Lepage; CRCHUM
  • Catherine Bourassa; CRCHUM
  • Guillaume Goyette; CRCHUM
  • Normand Racine; ICM
  • Zineb Khrifi; CRCHUM
  • Julie Turgeon; CRCHUM
  • Cecile Tremblay; CRCHUM
  • Valerie Martel-Laferriere; CRCHUM
  • Daniel E Kaufmann; CRCHUM
  • Marc Cloutier; Hema-Quebec
  • Renee Bazin; Hema-Quebec
  • Ralf E. Duerr; NYU School of Medicine
  • Melanie Dieude; Hema-Quebec
  • Marie-Josee Hebert; CRCHUM
  • Andres Finzi; CRCHUM
Preprint em Inglês | medRxiv | ID: ppmedrxiv-22275056
ABSTRACT
While SARS-CoV-2 mRNA vaccination has been shown to be safe and effective in the general population, immunocompromised solid organ transplant recipients (SOTR) were reported to have impaired immune responses after one or two doses of vaccine. In this study, we examined humoral responses induced after the second and the third dose of mRNA vaccine in different SOTR (kidney, liver, lung and heart). Compared to a cohort of SARS-CoV-2 naive immunocompetent health care workers (HCW), the second dose induced weak humoral responses in SOTR, except for the liver recipients. The third dose boosted these responses but they did not reach the same level as in HCW. Interestingly, while the neutralizing activity against Delta and Omicron variants remained very low after the third dose, Fc-mediated effector functions in SOTR reached similar levels as in the HCW cohort. Whether these responses will suffice to protect SOTR from severe outcome remains to be determined.
Licença
cc_no
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Cohort_studies / Estudo observacional / Estudo prognóstico Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
Texto completo: Disponível Coleções: Preprints Base de dados: medRxiv Tipo de estudo: Cohort_studies / Estudo observacional / Estudo prognóstico Idioma: Inglês Ano de publicação: 2022 Tipo de documento: Preprint
...