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Scientific Fields
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Published in Science advances - 01 Aug 2021

Yatim N, Boussier J, Tetu P, Smith N, Bruel T, Charbit B, Barnabei L, Corneau A, Da Meda L, Allayous C, Baroudjian B, Jebali M, Herms F, Grzelak L, Staropoli I, Calmettes V, Hadjadj J, Peyrony O, Cassius C, LeGoff J, Kramkimel N, Aractingi S, Fontes M, Blanc C, Rieux-Laucat F, Schwartz O, Terrier B, Duffy D, Lebbé C,

Link to Pubmed [PMID] – 34407944

Link to DOI – 10.1126/sciadv.abg4081

Sci Adv 2021 08; 7(34):

The COVID-19 pandemic has spread worldwide, yet the role of antiviral T cell immunity during infection and the contribution of immune checkpoints remain unclear. By prospectively following a cohort of 292 patients with melanoma, half of which treated with immune checkpoint inhibitors (ICIs), we identified 15 patients with acute or convalescent COVID-19 and investigated their transcriptomic, proteomic, and cellular profiles. We found that ICI treatment was not associated with severe COVID-19 and did not alter the induction of inflammatory and type I interferon responses. In-depth phenotyping demonstrated expansion of CD8 effector memory T cells, enhanced T cell activation, and impaired plasmablast induction in ICI-treated COVID-19 patients. The evaluation of specific adaptive immunity in convalescent patients showed higher spike (S), nucleoprotein (N), and membrane (M) antigen-specific T cell responses and similar induction of spike-specific antibody responses. Our findings provide evidence that ICI during COVID-19 enhanced T cell immunity without exacerbating inflammation.

https://pubmed.ncbi.nlm.nih.gov/34407944