Immune monitoring of interleukin-7 compassionate use in a critically ill COVID-19 patient

Guillaume Monneret, Donatien de Marignan, Rémy Coudereau, Céline Bernet, Florence Ader, Émilie Frobert, Morgane Gossez, Sébastien Viel, Fabienne Venet, Florent Wallet

Cellular and Molecular Immunology · 2020 · 47 citations · 6 references

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Abstract

One of the immune characteristics of coronavirus disease 2019 (COVID-19) is a massive fall in lymphocyte count in which magnitude associates with mortality. 1 , 2 Recent monitoring of COVID-19 intensive care units (ICU) patients confirmed the profound lymphopenia and its remarkable stability over time. 3 , 4 While most immunomodulation approaches proposed so far in COVID-19 focused on inhibiting inflammatory cytokine response; mounting evidence indicates that this viral-induced defective lymphocyte response may play a central role in COVID-19 pathophysiology. 5 Interestingly, recombinant human interleukin-7 (IL-7) therapy, known to efficiently restore lymphocyte count in several viral infections was safely administered in septic shock patients 6 who present with similar lymphocyte alterations as observed in COVID-19. 3

References

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