Skip to main content
main-content

23.11.2020 | Original Research Paper | Ausgabe 1/2021

Inflammation Research 1/2021

Local IL-17 positive T cells are functionally associated with neutrophil infiltration and their development is regulated by mucosal microenvironment in nasal polyps

Zeitschrift:
Inflammation Research > Ausgabe 1/2021
Autoren:
Sifei Yu, Chen Cao, Qianying Li, Xueyi Wen, Xuexue Guo, Qing Bao, Yutao Zhou, Liyue Li, Xiaoyan Ye, Tianying Li, Hexin Chen, Changyou Wu, Chunwei Li
Wichtige Hinweise
Responsible Editor: John Di Battista.
Sifei Yu and Chen Cao are contributed equally to this work.

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Abstract

Objective and design

IL-17 plays essential roles in neutrophilic inflammation in the lower respiratory tract, however, the characteristics of local IL-17+ T cells in nasal inflammatory mucosa are not fully understood. We investigated the roles of IL-17+ T cells in regulating neutrophil infiltration and the effect of the mucosal microenvironment in modulating IL-17+ T cell differentiation in CRSwNP tissues.

Subjects

47 polyp tissues from chronic rhinosinusitis with nasal polyps (CRSwNP) patients without corticosteroid therapy and 26 tissues from healthy mucosa were obtained.

Methods

Immunohistochemistry and flow cytometry were used to analyze the neutrophil infiltration, local IL-17+ T cell subsets, as well as cytokine producing profiles of IL-17+ T cell; tissue homogenates were used to study neutrophil migration and IL-17+ T cell differentiation.

Results

Increase of IL-17+ cells and IL-17+ T cell subsets was significant in polyp tissues versus controls, IL-17+ cell number was positively correlated with neutrophil infiltration; while homogenates from polyp tissues with high IL-17 promoted neutrophil migration in vitro. IL-17 response was found in polyp-derived T cells upon Staphylococcus aureus infection. IL-17+ T cells were also down-regulated in polyps from patients treated with glucocorticoid steroids, and exhibited poly-functionality patterns in polyp tissues. Finally, IL-17+ T cell differentiation could be induced by IL-23, and homogenates from polyps could enhance IL-17+ T cell development.

Conclusions

This study determined a functional association of IL-17+ T cells with neutrophils in CRSwNP, and revealed that polyp microenvironment could promote IL-17+ T cell differentiation, suggesting a potential feedback role for IL-17+ T cell development and local neutrophilic inflammation.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

★ PREMIUM-INHALT
e.Med Interdisziplinär

Für Ihren Erfolg in Klinik und Praxis - Die beste Hilfe in Ihrem Arbeitsalltag als Mediziner

Mit e.Med Interdisziplinär erhalten Sie Zugang zu allen CME-Fortbildungen und Fachzeitschriften auf SpringerMedizin.de.

Weitere Produktempfehlungen anzeigen
Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 1/2021

Inflammation Research 1/2021 Zur Ausgabe
  1. Sie können e.Med Dermatologie 14 Tage kostenlos testen (keine Print-Zeitschrift enthalten). Der Test läuft automatisch und formlos aus. Es kann nur einmal getestet werden.

Neu im Fachgebiet Innere Medizin

Mail Icon II Newsletter

Bestellen Sie unseren kostenlosen Newsletter Update Innere Medizin und bleiben Sie gut informiert – ganz bequem per eMail.

© Springer Medizin 

Bildnachweise