Experimental models used to study human tuberculosis.

Area of Science:

• Microbiology and Infectious Diseases
• Pathogen Research
• Translational Medicine

Background:

• Mycobacterium tuberculosis (M. tuberculosis) is a leading cause of bacterial death globally.
• Tuberculosis incidence is rising, with over 9 million new cases annually.
• Current TB prevention, diagnosis, and treatment methods are outdated.

Purpose of the Study:

• To review experimental models for studying M. tuberculosis.
• To assess the relevance of these models for developing new TB interventions.
• To highlight the need for improved tools to combat the global TB burden.

Main Methods:

• Review of in vitro studies using low-pathogenic mycobacteria.
• Analysis of in vivo models, including nonhuman primate infections with virulent M. tuberculosis.
• Evaluation of model validity and relevance to human tuberculosis.

Main Results:

• A range of experimental models are employed to study M. tuberculosis.
• Model selection is critical for the successful discovery of new vaccines, diagnostics, and drugs.
• The validity of surrogate models directly impacts the development of effective tuberculosis interventions.

Conclusions:

• Effective experimental models are essential for advancing tuberculosis control.
• Further research and validation of models are needed to develop novel strategies against M. tuberculosis.
• Improved tools are urgently required to reduce the global incidence and mortality of tuberculosis.