Pellino-1 regulates immune responses to Haemophilus influenzae in models of inflammatory lung disease.

Journal article


Hughes, Bethany, Burton, Charlotte, Reese, Abigail, Jabeen, Maisha, Wright, Carl, Khoshaein, Nika, Marsh, Elizabeth, Peachell, Peter, Sun, Shao-Cong, Dockrell, David, Marriott, Helen, Sabroe, Ian, Condliffe, Alison, Prince, Lynne and Willis, Jessica 2019. Pellino-1 regulates immune responses to Haemophilus influenzae in models of inflammatory lung disease. Frontiers in Immunology.
AuthorsHughes, Bethany, Burton, Charlotte, Reese, Abigail, Jabeen, Maisha, Wright, Carl, Khoshaein, Nika, Marsh, Elizabeth, Peachell, Peter, Sun, Shao-Cong, Dockrell, David, Marriott, Helen, Sabroe, Ian, Condliffe, Alison, Prince, Lynne and Willis, Jessica
Abstract

Nontypeable Haemophilus influenzae (NTHi) is a frequent cause of lower respiratory tract infection in people with chronic
obstructive pulmonary disease (COPD). Pellino proteins are a family of E3 ubiquitin ligases that are critical regulators of TLR
signalling and inflammation. The aim of this study was to identify a role for Pellino-1 in airway defence against NTHi in the context
of COPD.
Pellino-1 is rapidly upregulated by LPS and NTHi in monocyte-derived macrophages (MDMs) isolated from individuals with COPD and
healthy control subjects, in a TLR4 dependent manner. C57BL/6 Peli1-/- and wild-type (WT) mice were subjected to acute (single LPS
challenge) or chronic (repeated LPS and elastase challenge) airway inflammation followed by NTHi infection. Both WT and Peli1-/-
mice develop airway inflammation in acute and chronic airway inflammation models. Peli1-/- animals recruit significantly more
neutrophils to the airway following NTHi infection which is associated with an increase in the neutrophil chemokine, KC, in
bronchoalveolar lavage fluid as well as enhanced clearance of NTHi from the lung. These data suggest that therapeutic inhibition of
Pellino-1 may augment immune responses in the airway and enhance bacterial clearance in individuals with COPD.

KeywordsInflammation, Lung, Immunity, Pellino-1, Haemophilus influenzae
Year2019
JournalFrontiers in Immunology
PublisherFrontiers Media
ISSN1664-3224
Web address (URL)http://hdl.handle.net/10545/624053
http://creativecommons.org/licenses/by-nc-nd/3.0/us/
hdl:10545/624053
Publication dates31 Jul 2019
Publication process dates
Deposited01 Aug 2019, 10:32
Accepted09 Jul 2019
Rights

Attribution-NonCommercial-NoDerivs 3.0 United States

ContributorsUniversity of Sheffield, University of Derby, University of Oxford, University of Edinburgh and University of Texas MD Anderson Cancer Center
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