Neutrophil trails guide influenza-specific CD8 + T cells in the airways

Author:

Lim Kihong1,Hyun Young-Min1,Lambert-Emo Kris1,Capece Tara1,Bae Seyeon1,Miller Richard2,Topham David J.1,Kim Minsoo1

Affiliation:

1. Department of Microbiology and Immunology, David H. Smith Center for Vaccine Biology and Immunology, University of Rochester, Rochester, NY, USA.

2. Department of Pharmacology, Northwestern University, Chicago, IL, USA.

Abstract

Neutrophils lay down the tracks T cells constantly circulate throughout the body until an invading pathogen calls them into action. Microbes often cause localized infections, so how do T cells know where to go? Lim et al. explore this question in a mouse model of influenza infection and find that immune cells called neutrophils help guide the way (see the Perspective by Kiermaier and Sixt). Upon infection, neutrophils quickly traffic to the trachea. There, they lay down “tracks” enriched in proteins called chemokines, especially the chemokine CXCL12, which guide CD8 + T cells to the infected organ. Mice whose neutrophils could not lay down such tracks exhibited defects in CD8 + T cell recruitment and viral clearance. Science , this issue 10.1126/science.aaa4352 ; see also p. 1055

Funder

NIH

American Heart Association

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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