A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.

Interleukin-1 (IL-1) signaling is essential for controlling virulent Mycobacterium tuberculosis (Mtb) infection since antagonism of this pathway leads to exacerbated pathology and increased susceptibility. In contrast, the triggering of type I interferon (IFN) signaling is associated with the progre...

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Main Authors: Suhas Bobba, Kuldeep S Chauhan, Sadia Akter, Shibali Das, Ekansh Mittal, Barun Mathema, Jennifer A Philips, Shabaana A Khader
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-04-01
Series:PLoS Pathogens
Online Access:https://journals.plos.org/plospathogens/article/file?id=10.1371/journal.ppat.1012137&type=printable
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author Suhas Bobba
Kuldeep S Chauhan
Sadia Akter
Shibali Das
Ekansh Mittal
Barun Mathema
Jennifer A Philips
Shabaana A Khader
author_facet Suhas Bobba
Kuldeep S Chauhan
Sadia Akter
Shibali Das
Ekansh Mittal
Barun Mathema
Jennifer A Philips
Shabaana A Khader
author_sort Suhas Bobba
collection DOAJ
description Interleukin-1 (IL-1) signaling is essential for controlling virulent Mycobacterium tuberculosis (Mtb) infection since antagonism of this pathway leads to exacerbated pathology and increased susceptibility. In contrast, the triggering of type I interferon (IFN) signaling is associated with the progression of tuberculosis (TB) disease and linked with negative regulation of IL-1 signaling. However, mice lacking IL-1 signaling can control Mtb infection if infected with an Mtb strain carrying the rifampin-resistance conferring mutation H445Y in its RNA polymerase β subunit (rpoB-H445Y Mtb). The mechanisms that govern protection in the absence of IL-1 signaling during rpoB-H445Y Mtb infection are unknown. In this study, we show that in the absence of IL-1 signaling, type I IFN signaling controls rpoB-H445Y Mtb replication, lung pathology, and excessive myeloid cell infiltration. Additionally, type I IFN is produced predominantly by monocytes and recruited macrophages and acts on LysM-expressing cells to drive protection through nitric oxide (NO) production to restrict intracellular rpoB-H445Y Mtb. These findings reveal an unexpected protective role for type I IFN signaling in compensating for deficiencies in IL-1 pathways during rpoB-H445Y Mtb infection.
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institution OA Journals
issn 1553-7366
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publishDate 2024-04-01
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spelling doaj-art-3a448097dc6140aeb41f6248c637dd4e2025-08-20T01:56:39ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742024-04-01204e101213710.1371/journal.ppat.1012137A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.Suhas BobbaKuldeep S ChauhanSadia AkterShibali DasEkansh MittalBarun MathemaJennifer A PhilipsShabaana A KhaderInterleukin-1 (IL-1) signaling is essential for controlling virulent Mycobacterium tuberculosis (Mtb) infection since antagonism of this pathway leads to exacerbated pathology and increased susceptibility. In contrast, the triggering of type I interferon (IFN) signaling is associated with the progression of tuberculosis (TB) disease and linked with negative regulation of IL-1 signaling. However, mice lacking IL-1 signaling can control Mtb infection if infected with an Mtb strain carrying the rifampin-resistance conferring mutation H445Y in its RNA polymerase β subunit (rpoB-H445Y Mtb). The mechanisms that govern protection in the absence of IL-1 signaling during rpoB-H445Y Mtb infection are unknown. In this study, we show that in the absence of IL-1 signaling, type I IFN signaling controls rpoB-H445Y Mtb replication, lung pathology, and excessive myeloid cell infiltration. Additionally, type I IFN is produced predominantly by monocytes and recruited macrophages and acts on LysM-expressing cells to drive protection through nitric oxide (NO) production to restrict intracellular rpoB-H445Y Mtb. These findings reveal an unexpected protective role for type I IFN signaling in compensating for deficiencies in IL-1 pathways during rpoB-H445Y Mtb infection.https://journals.plos.org/plospathogens/article/file?id=10.1371/journal.ppat.1012137&type=printable
spellingShingle Suhas Bobba
Kuldeep S Chauhan
Sadia Akter
Shibali Das
Ekansh Mittal
Barun Mathema
Jennifer A Philips
Shabaana A Khader
A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.
PLoS Pathogens
title A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.
title_full A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.
title_fullStr A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.
title_full_unstemmed A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.
title_short A protective role for type I interferon signaling following infection with Mycobacterium tuberculosis carrying the rifampicin drug resistance-conferring RpoB mutation H445Y.
title_sort protective role for type i interferon signaling following infection with mycobacterium tuberculosis carrying the rifampicin drug resistance conferring rpob mutation h445y
url https://journals.plos.org/plospathogens/article/file?id=10.1371/journal.ppat.1012137&type=printable
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