Related Experiment Video
Updated: Mar 14, 2026

An Automated Culture System for Use in Preclinical Testing of Host-Directed Therapies for Tuberculosis
Published on: August 16, 2021
To Be or Not Be a (Functional) Antibody Against TB
1Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe Street, Baltimore, MD 21205, USA.
Human antibodies targeting Mycobacterium tuberculosis show varied effectiveness. This functional heterogeneity in antibody response explains decades of conflicting research on the role of humoral immunity in tuberculosis defense.
Area of Science:
- Immunology
- Microbiology
- Infectious Diseases
Background:
- Tuberculosis (TB) remains a significant global health challenge, caused by Mycobacterium tuberculosis.
- The role of humoral immunity, specifically antibodies, in defense against TB has been debated for decades due to conflicting evidence.
Purpose of the Study:
- To investigate the efficacy of human antibodies against Mycobacterium tuberculosis.
- To elucidate how functional heterogeneity within the antibody response contributes to the contradictory findings on humoral immunity's role in TB defense.
Main Methods:
- Analysis of human antibody responses to Mycobacterium tuberculosis.
- Characterization of functional heterogeneity in antibody-mediated immunity.
Main Results:
- Demonstrated significant variability in the efficacy of human antibodies against Mycobacterium tuberculosis.
- Identified functional differences in antibody responses that correlate with disparate outcomes in TB defense.
Conclusions:
- The functional heterogeneity of antibody responses is a key factor explaining the long-standing controversy regarding humoral immunity's contribution to tuberculosis resistance.
- Understanding this heterogeneity is crucial for developing effective antibody-based therapeutics and vaccines for TB.
More Related Videos
06:26Author Spotlight: Optimizing CFU Determination for Efficient Assessment of TB Vaccine Efficacy and Antigen Presentation Analysis
Published on: July 28, 2023
09:57System for Efficacy and Cytotoxicity Screening of Inhibitors Targeting Intracellular Mycobacterium tuberculosis
Published on: April 5, 2017
Related Concept Videos
Pulmonary Tuberculosis IV
Several diagnostic approaches are used to detect TB. The conventional method is the Tuberculin Skin Test (TST), also known as the Mantoux test. However, this method has...
Pulmonary Tuberculosis V
Latent tuberculosis infection occurs when TB bacteria are present in a person's body, but are not causing illness or symptoms. It is not contagious, and preventive treatment is crucial to avoid the...
Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Pulmonary Tuberculosis III
The first classification is based on the development of the disease, and it includes the following categories:
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pulmonary Tuberculosis II
Here is a detailed explanation of its pathophysiology:
Transmission: The process begins when a person inhales droplet nuclei containing M. tuberculosis. These are typically released into the air when an individual with pulmonary or...