Serpinb1 Controls Encephalitogenic T Helper Cells in Neuroinflammation
SerpinB1 controls encephalitogenic T helper cells in neuroinflammation Lifei Houa,b,1,2, Deepak A. Raoc,d, Koichi Yukie,f, Jessica Cooleya, Lauren A. Hendersonb,g, A. Helena Jonssonc,d, Dion Kaisermanh, Mark P. Gormanb,i, Peter A. Nigrovicc,d,g, Phillip I. Birdh, Burkhard Becherj, and Eileen Remold-O’Donnella,b,k,2 aThe Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Boston, MA 02115; bDepartment of Pediatrics, Harvard Medical School, Boston, MA 02115; cDivision of Rheumatology, Immunology and Allergy, Brigham and Women’s Hospital, Boston, MA 02115; dDepartment of Medicine, Harvard Medical School, Boston, MA 02115; eDepartment of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Boston, MA 02115; fDepartment of Anesthesiology, Harvard Medical School, Boston, MA 02115; gDivision of Immunology, Boston Children’s Hospital, Boston, MA 02115; hDepartment of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, VIC, 3800, Australia; iDepartment of Neurology, Boston Children’s Hospital, Boston, MA 02115; jInflammation Unit, Institute of Experimental Immunology, University of Zurich, CH-8057 Zurich, Switzerland; and kDepartment of Hematology/Oncology, Harvard Medical School, Boston, MA 02115 Edited by Jean Laurent-Casanova, Rockefeller University, New York, NY, and approved August 27, 2019 (received for review April 5, 2019) SerpinB1, a protease inhibitor and neutrophil survival factor, was flammatory tissue injury and neutrophil death, and in naïve mice, recently linked with IL-17–expressing T cells. Here, we show that preserves the bone marrow reserve of mature neutrophils by serpinB1 (Sb1) is dramatically inducedinasubsetofeffector restricting spontaneous cell death mediated by the granule serine CD4 cells in experimental autoimmune encephalomyelitis (EAE).
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