Journal article

MAIT cells contribute to protection against lethal influenza infection in vivo

Bonnie van Wilgenburg, Liyen Loh, Zhenjun Chen, Troi Pediongco, Huimeng Wang, Mai Shi, Zhe Zhao, Marios Koutsakos, Simone Nussing, Sneha Sant, Zhongfang Wang, Criselle D'Souza, Catarina Almeida, Lyudmila Kostenko, Sidonia BG Eckle, Bronwyn Meehan, Dale Godfrey, Patrick Reading, Alexandra Corbett, James McCluskey Show all

Nature Communications | Nature Research (part of Springer Nature) | Published : 2018

Abstract

Mucosal associated invariant T (MAIT) cells are evolutionarily-conserved, innate-like lymphocytes which are abundant in human lungs and can contribute to protection against pulmonary bacterial infection. MAIT cells are also activated during human viral infections, yet it remains unknown whether MAIT cells play a significant protective or even detrimental role during viral infections in vivo. Using murine experimental challenge with two strains of influenza A virus, we show that MAIT cells accumulated and were activated early in infection, with upregulation of CD25, CD69 and Granzyme B, peaking at 5 days post infection. Activation was modulated via cytokines independently of MR1. MAIT cell-de..

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