Critical Role of IL-17RA in Immunopathology of Influenza Infection

被引:286
作者
Crowe, Christopher R. [2 ]
Chen, Kong [1 ]
Pociask, Derek A. [2 ]
Alcorn, John F. [2 ]
Krivich, Cameron [2 ]
Enelow, Richard I. [3 ]
Ross, Ted M. [4 ]
Witztum, Joseph L. [5 ]
Kolls, Jay K. [1 ,2 ]
机构
[1] Louisiana State Univ, Hlth Sci Ctr, Dept Genet, New Orleans, LA 70112 USA
[2] Childrens Hosp Pittsburgh, Pittsburgh, PA 15213 USA
[3] Dartmouth Med Sch, Dept Med & Microbiol & Immunol, Lebanon, NH 03756 USA
[4] Univ Pittsburgh, Sch Med, Ctr Vaccine Res, Pittsburgh, PA 15261 USA
[5] Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA
关键词
COLONY-STIMULATING FACTOR; INDUCED PULMONARY-EDEMA; VIRUS TYPE-1 INFECTION; ACUTE LUNG INJURY; T-CELL RESPONSES; NEUTROPHIL RECRUITMENT; A VIRUS; AUTOIMMUNE INFLAMMATION; PNEUMONIAE INFECTION; GAMMA-INTERFERON;
D O I
10.4049/jimmunol.0900995
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
100102 ;
摘要
Acute lung injury due to influenza infection is associated with high mortality, an increase in neutrophils in the airspace, and increases in tissue myeloperoxidase (WO). Because IL-17A and IL-17F, ligands for IL-17 receptor antagonist (IL-17RA), have been shown to mediate neutrophil migration into the lung in response to LPS or Gram-negative bacterial pneumonia, we hypothesized that IL-17RA signaling was critical for acute lung injury in response to pulmonary influenza infection. IL-17RA was critical for weight loss and both neutrophil migration and increases in tissue myeloperoxidase (MPO) after influenza infection. However, IL-17RA was dispensable for the recruitment of CD8(+) T cells specific for influenza hemagglutinin or nucleocapsid protein. Consistent with this, IL-17RA was not required for viral clearance. However, in the setting of influenza infection, IL-17RA(-/-) mice showed significantly reduced levels of oxidized phospholipids, which have previously been shown to be an important mediator in several models of acute lung injury, including influenza infection and gastric acid aspiration. Taken together, these data support targeting IL-17 or IL-17RA in acute lung injury due to acute viral infection. The Journal of Immunology, 2009, 183: 5301-5310.
引用
收藏
页码:5301 / 5310
页数:10
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