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An Automated Culture System for Use in Preclinical Testing of Host-Directed Therapies for Tuberculosis
Published on: August 16, 2021
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Immune evasion and provocation by Mycobacterium tuberculosis.
Pallavi Chandra1,2, Steven J Grigsby1,2, Jennifer A Philips3,4
1Division of Infectious Diseases, Department of Medicine, Washington University School of Medicine, St Louis, MO, USA.
Nature Reviews. Microbiology
|July 25, 2022
Summary
Mycobacterium tuberculosis evades host immunity to persist and transmit. Understanding its virulence factors is key to developing new vaccines and therapies for tuberculosis.
Area of Science:
- Immunology
- Microbiology
- Infectious Diseases
Background:
- Mycobacterium tuberculosis (M. tuberculosis) causes tuberculosis, a persistent human infection.
- M. tuberculosis thrives by evading and manipulating host immune responses.
- Infection outcomes often involve a balance between immune control and bacterial persistence.
Purpose of the Study:
- To review immune evasion and provocation strategies of M. tuberculosis.
- To highlight the need for molecular insights into virulence factors.
- To emphasize the importance of understanding diverse cellular reservoirs and infection stages.
Main Methods:
- Literature review of M. tuberculosis infection dynamics.
- Analysis of bacterial effectors influencing host immunity.
- Examination of host-pathogen interactions across infection stages.
Main Results:
- M. tuberculosis employs diverse effectors to modulate macrophage function and inflammation.
- Limited understanding exists regarding specific virulence factors in different cellular niches.
- Dynamic changes in cellular reservoirs and bacterial niches occur during infection.
Conclusions:
- Detailed molecular understanding of M. tuberculosis virulence is crucial.
- This knowledge can drive development of novel host-directed therapies.
- It will also aid in creating effective vaccines and disease biomarkers for tuberculosis.
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