Multisystem inflammatory syndrome in children characterized by enhanced antigen-specific T-cell expression of cytokines and its reversal following recovery

BackgroundMultisystem inflammatory syndrome (MIS) in children is considered to be a post-infectious complication of COVID-19. T-cell responses in children with this condition have not been well-studied.MethodsWe aimed to study the immune responses in children with MIS in comparison to children with...

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Main Authors: Nathella Pavan Kumar (Author), Kadar M. Abbas (Author), Rachel M. Renji (Author), Aishwarya Venkataraman (Author), Arul Nancy (Author), Poovazhagi Varadarjan (Author), Elilarasi Selladurai (Author), Thankgavelu Sangaralingam (Author), Ramya Selvam (Author), Akshith Thimmaiah (Author), Suresh Natarajan (Author), Ganesh Ramasamy (Author), Syed Hissar (Author), Uma Devi Ranganathan (Author), Thomas B. Nutman (Author), Subash Babu (Author)
Format: Book
Published: Frontiers Media S.A., 2023-12-01T00:00:00Z.
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100 1 0 |a Nathella Pavan Kumar  |e author 
700 1 0 |a Kadar M. Abbas  |e author 
700 1 0 |a Rachel M. Renji  |e author 
700 1 0 |a Aishwarya Venkataraman  |e author 
700 1 0 |a Arul Nancy  |e author 
700 1 0 |a Poovazhagi Varadarjan  |e author 
700 1 0 |a Elilarasi Selladurai  |e author 
700 1 0 |a Thankgavelu Sangaralingam  |e author 
700 1 0 |a Ramya Selvam  |e author 
700 1 0 |a Akshith Thimmaiah  |e author 
700 1 0 |a Suresh Natarajan  |e author 
700 1 0 |a Ganesh Ramasamy  |e author 
700 1 0 |a Syed Hissar  |e author 
700 1 0 |a Uma Devi Ranganathan  |e author 
700 1 0 |a Thomas B. Nutman  |e author 
700 1 0 |a Subash Babu  |e author 
700 1 0 |a Subash Babu  |e author 
245 0 0 |a Multisystem inflammatory syndrome in children characterized by enhanced antigen-specific T-cell expression of cytokines and its reversal following recovery 
260 |b Frontiers Media S.A.,   |c 2023-12-01T00:00:00Z. 
500 |a 2296-2360 
500 |a 10.3389/fped.2023.1235342 
520 |a BackgroundMultisystem inflammatory syndrome (MIS) in children is considered to be a post-infectious complication of COVID-19. T-cell responses in children with this condition have not been well-studied.MethodsWe aimed to study the immune responses in children with MIS in comparison to children with acute COVID-19 and children with other infections. Whole blood was stimulated with severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2)-specific antigens and flow cytometry was performed to examine CD4+ and CD8+ T-cell responses.ResultsChildren with MIS had higher frequencies of CD4+ and CD8+ T cells expressing cytokines at baseline and upon SARS-CoV-2 antigen-specific stimulation in comparison to children with COVID-19 and/or other infections. Children with COVID-19 also exhibited higher frequencies of CD4+ and CD8+ T cells expressing cytokines at baseline and upon SARS-CoV-2 antigen-specific stimulation in comparison to children with other infections. At 6-9 months following treatment and recovery, this enhanced response against SARS-CoV-2 antigens was down modulated in children with MIS.ConclusionOur study, therefore, provides evidence of enhanced activation of CD4+ and CD8+ T-cell responses in children with MIS and reversal following recovery. 
546 |a EN 
690 |a MIS-C 
690 |a SARS-CoV-2 
690 |a COVID-19 
690 |a CD4+ T cells 
690 |a CD8+ T cells 
690 |a cellular immune responses 
690 |a Pediatrics 
690 |a RJ1-570 
655 7 |a article  |2 local 
786 0 |n Frontiers in Pediatrics, Vol 11 (2023) 
787 0 |n https://www.frontiersin.org/articles/10.3389/fped.2023.1235342/full 
787 0 |n https://doaj.org/toc/2296-2360 
856 4 1 |u https://doaj.org/article/f9c05af30afc49859a2a4ea2a4792a1f  |z Connect to this object online.