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The Long Pentraxin 3 (PTX3) Suppresses Immunity to Cutaneous Leishmaniasis by Regulating CD4+ T Helper Cell Response

Authors :
Abdel Soussi-Gounni
Romaniya Zayats
Aldina Barral
Rohit Sharma
Sayonara M. Viana
Zhirong Mou
Jude E. Uzonna
Camila I. de Oliveira
Viviane Boaventura
Gaurav Gupta
Thomas T. Murooka
Lianyu Shan
Ping Jia
Source :
Cell Reports, Vol 33, Iss 11, Pp 108513-(2020)
Publication Year :
2020
Publisher :
Elsevier, 2020.

Abstract

Summary The long pentraxin 3 (PTX3) plays a critical role in inflammation, tissue repair, and wound healing. Here, we show that PTX3 regulates disease pathogenesis in cutaneous leishmaniasis (CL). PTX3 expression increases in skin lesions in patients and mice during CL, with higher expression correlating with severe disease. PTX3-deficient (PTX3−/−) mice are highly resistant to L. major and L. braziliensis infections. This enhanced resistance is associated with increases in Th17 and IL-17A responses. The neutralization of IL-17A abolishes this enhanced resistance, while rPTX3 treatment results in decrease in Th17 and IL-17A responses and increases susceptibility. PTX3−/− CD4+ T cells display increased differentiation to Th17 and expression of Th17-specific transcription factors. The addition of rPTX3 suppresses the expression of Th17 transcription factors, Th17 differentiation, and IL-17A production by CD4+ T cells from PTX3−/− mice. Collectively, our results show that PTX3 contributes to the pathogenesis of CL by negatively regulating Th17 and IL-17A responses.

Details

Language :
English
ISSN :
22111247
Volume :
33
Issue :
11
Database :
OpenAIRE
Journal :
Cell Reports
Accession number :
edsair.doi.dedup.....ff4a9428031a8d660b38a6f0f53fbc18