IL-27 inhibits anti- Mycobacterium tuberculosis innate immune activity of primary human macrophages
Author(s)
Gollnick, Hailey
Barber, Jamie
Wilkinson, Robert J
Newton, Sandra
Garg, Ankita
Type
Journal Article
Abstract
Mycobacterium tuberculosis (M. tuberculosis) is an intracellular pathogen that primarily infects macrophages. Despite a robust anti-mycobacterial response, many times macrophages are unable to control M. tuberculosis. The purpose of this study was to investigate the mechanism by which the immunoregulatory cytokine IL-27 inhibits the anti-mycobacterial activity of primary human macrophages. We found concerted production of IL-27 and anti-mycobacterial cytokines by M. tuberculosis-infected macrophages in a toll-like receptor (TLR) dependent manner. Notably, IL-27 suppressed the production of anti-mycobacterial cytokines TNFα, IL-6, IL-1β, and IL-15 by M. tuberculosis-infected macrophages. IL-27 limits the anti-mycobacterial activity of macrophages by reducing Cyp27B, cathelicidin (LL-37), LC3B lipidation, and increasing IL-10 production. Furthermore, neutralizing both IL-27 and IL-10 increased the expression of proteins involved in LC3-associated phagocytosis (LAP) pathway for bacterial clearance, namely vacuolar-ATPase, NOX2, and RUN-domain containing protein RUBCN. These results implicate IL-27 is a prominent cytokine that impedes M. tuberculosis clearance.
Date Issued
2023-03
Date Acceptance
2023-02-19
Citation
Tuberculosis, 2023, 139
ISSN
1472-9792
Publisher
Elsevier
Journal / Book Title
Tuberculosis
Volume
139
Copyright Statement
Copyright © Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Identifier
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000953873500001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=a2bf6146997ec60c407a63945d4e92bb
Subjects
AUTOPHAGY
CYTOKINES
cytokines(5)
DENDRITIC CELLS
Humanmacrophages(3)
IFN-GAMMA
IL-27(1)
Immunology
INDUCTION
innateimmunity(4)
LC3-ASSOCIATED PHAGOCYTOSIS
Life Sciences & Biomedicine
M. tuberculosis(2)
Microbiology
NADPH OXIDASE
PHAGOSOME MATURATION
Respiratory System
RESPONSES
Science & Technology
T-CELLS
Publication Status
Published
Article Number
102326
Date Publish Online
2023-02-24