Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis

Tuberculosis (TB) remains a significant global health challenge, claiming the lives of up to 1.5 million individuals annually. TB is caused by the human pathogen Mycobacterium tuberculosis (Mtb), which primarily infects innate immune cells in the lungs. These immune cells play a critical role in the...

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Main Authors: Poornima Sankar, Bibhuti Bhusan Mishra
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-10-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2023.1260859/full
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author Poornima Sankar
Bibhuti Bhusan Mishra
author_facet Poornima Sankar
Bibhuti Bhusan Mishra
author_sort Poornima Sankar
collection DOAJ
description Tuberculosis (TB) remains a significant global health challenge, claiming the lives of up to 1.5 million individuals annually. TB is caused by the human pathogen Mycobacterium tuberculosis (Mtb), which primarily infects innate immune cells in the lungs. These immune cells play a critical role in the host defense against Mtb infection, influencing the inflammatory environment in the lungs, and facilitating the development of adaptive immunity. However, Mtb exploits and manipulates innate immune cells, using them as favorable niche for replication. Unfortunately, our understanding of the early interactions between Mtb and innate effector cells remains limited. This review underscores the interactions between Mtb and various innate immune cells, such as macrophages, dendritic cells, granulocytes, NK cells, innate lymphocytes-iNKT and ILCs. In addition, the contribution of alveolar epithelial cell and endothelial cells that constitutes the mucosal barrier in TB immunity will be discussed. Gaining insights into the early cellular basis of immune reactions to Mtb infection is crucial for our understanding of Mtb resistance and disease tolerance mechanisms. We argue that a better understanding of the early host-pathogen interactions could inform on future vaccination approaches and devise intervention strategies.
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spelling doaj.art-87e132c0698a45beb79fcced2912da722023-10-27T22:01:44ZengFrontiers Media S.A.Frontiers in Immunology1664-32242023-10-011410.3389/fimmu.2023.12608591260859Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosisPoornima SankarBibhuti Bhusan MishraTuberculosis (TB) remains a significant global health challenge, claiming the lives of up to 1.5 million individuals annually. TB is caused by the human pathogen Mycobacterium tuberculosis (Mtb), which primarily infects innate immune cells in the lungs. These immune cells play a critical role in the host defense against Mtb infection, influencing the inflammatory environment in the lungs, and facilitating the development of adaptive immunity. However, Mtb exploits and manipulates innate immune cells, using them as favorable niche for replication. Unfortunately, our understanding of the early interactions between Mtb and innate effector cells remains limited. This review underscores the interactions between Mtb and various innate immune cells, such as macrophages, dendritic cells, granulocytes, NK cells, innate lymphocytes-iNKT and ILCs. In addition, the contribution of alveolar epithelial cell and endothelial cells that constitutes the mucosal barrier in TB immunity will be discussed. Gaining insights into the early cellular basis of immune reactions to Mtb infection is crucial for our understanding of Mtb resistance and disease tolerance mechanisms. We argue that a better understanding of the early host-pathogen interactions could inform on future vaccination approaches and devise intervention strategies.https://www.frontiersin.org/articles/10.3389/fimmu.2023.1260859/fullMycobacterium tuberculosishost-pathogen interactionsalveolar epithelial cellsgranulocytesinflammationinnate immunity
spellingShingle Poornima Sankar
Bibhuti Bhusan Mishra
Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis
Frontiers in Immunology
Mycobacterium tuberculosis
host-pathogen interactions
alveolar epithelial cells
granulocytes
inflammation
innate immunity
title Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis
title_full Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis
title_fullStr Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis
title_full_unstemmed Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis
title_short Early innate cell interactions with Mycobacterium tuberculosis in protection and pathology of tuberculosis
title_sort early innate cell interactions with mycobacterium tuberculosis in protection and pathology of tuberculosis
topic Mycobacterium tuberculosis
host-pathogen interactions
alveolar epithelial cells
granulocytes
inflammation
innate immunity
url https://www.frontiersin.org/articles/10.3389/fimmu.2023.1260859/full
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