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Aspergillus and Fusarium Corneal Infections Are Regulated by Th17 Cells and IL-17-producing Neutrophils

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Journal J Immunol
Date 2014 Mar 5
PMID 24591369
Citations 54
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Abstract

Fusarium and Aspergillus species of mold are major causes of corneal infections in the United States and worldwide, resulting in severe visual impairment and blindness. As there is evidence for T cell responses to these pathogenic fungi in infected individuals, we examined the role of IL-17A (IL-17) and IFN-γ in murine models of fungal keratitis. We found that C57BL/6 mice given intratracheal or s.c. immunization of conidia prior to corneal infection exhibited enhanced fungal killing and lower corneal opacity compared with unimmunized mice. Protective immunity was associated with temporal recruitment of IL-17-producing neutrophils and Th17 and Th1 cells and dependent on production of IL-17 but not IFN-γ. Protection was also impaired in neutrophil-depleted and Rag2(-/-) mice. Together, the results of these studies identify an essential role for IL-17-producing neutrophils and Th17 cells in regulating the growth of fungal hyphae and the severity of corneal disease.

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References
1.
Puel A, Doffinger R, Natividad A, Chrabieh M, Barcenas-Morales G, Picard C . Autoantibodies against IL-17A, IL-17F, and IL-22 in patients with chronic mucocutaneous candidiasis and autoimmune polyendocrine syndrome type I. J Exp Med. 2010; 207(2):291-7. PMC: 2822614. DOI: 10.1084/jem.20091983. View

2.
Cua D, Tato C . Innate IL-17-producing cells: the sentinels of the immune system. Nat Rev Immunol. 2010; 10(7):479-89. DOI: 10.1038/nri2800. View

3.
Zelante T, Bozza S, De Luca A, DAngelo C, Bonifazi P, Moretti S . Th17 cells in the setting of Aspergillus infection and pathology. Med Mycol. 2008; 47 Suppl 1:S162-9. DOI: 10.1080/13693780802140766. View

4.
Werner J, Metz A, Horn D, Schoeb T, Hewitt M, Schwiebert L . Requisite role for the dectin-1 beta-glucan receptor in pulmonary defense against Aspergillus fumigatus. J Immunol. 2009; 182(8):4938-46. PMC: 3434356. DOI: 10.4049/jimmunol.0804250. View

5.
Barnes P, Marr K . Risks, diagnosis and outcomes of invasive fungal infections in haematopoietic stem cell transplant recipients. Br J Haematol. 2007; 139(4):519-31. DOI: 10.1111/j.1365-2141.2007.06812.x. View