Nontypeable Haemophilus influenzae (NTHi) directly interfere with the regulation of E-cadherin in lung epithelial cells

Inga Kaufhold*, Sünja Osbahr, Kensuke Shima, Sebastian Marwitz, Kristina Rohmann, Daniel Drömann, Torsten Goldmann, Klaus Dalhoff, Jan Rupp

*Corresponding author for this work

Abstract

Loss of epithelial barriers characterized by reduction of E-cadherin is a hallmark of chronic obstructive pulmonary disease (COPD). We investigated the effects of nontypeable Haemophilus influenzae (NTHi) infections, associated with acute exacerbations of chronic bronchitis, on the regulation of E-cadherin in host cells. NTHi infection decreased E-cadherin mRNA and protein-levels in lung epithelial cells. E-cadherin reduction was mediated by activation of the fibroblast growth factor 2 (FGF2), the mammalian target of rapamycin (mTOR) and Slug. These data indicate that epithelial integrity and barrier function is disturbed by NTHi infection. Mainly, the destruction of cell–cell contacts is a prominent feature in NTHi infection.

Original languageEnglish
JournalMicrobes and Infection
Volume19
Issue number11
Pages (from-to)560-566
Number of pages7
ISSN1286-4579
DOIs
Publication statusPublished - 01.11.2017

Research Areas and Centers

  • Academic Focus: Center for Infection and Inflammation Research (ZIEL)

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