An Autonomous National Institute, Government of India, Department of Biotechnology, Ministry of Science & Technology
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Mycobacterium Research Group
 
 

Tuberculosis (TB) is a universal and deadly infectious disease caused mainly by Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs to cause pulmonary TB, but TB can virtually affect any other part of the body as well. Although TB is a curable disease, it is still a leading cause of death worldwide and India has the largest number of TB patients.

One of our main research goals is to understand the local strains of M. tuberculosis. We isolate acid-fast bacilli from patients and characterize them by biochemical and genetic methods. These local isolates form the raw material for most of our studies. We study the genetic variations in the isolates and characterize them using various genetic tools and compare them to strains from other parts of the country.

Macrophages or the phagocytic cells are key cells in the body that are designed to kill an invading pathogen and help in mounting an immune response to an infection. These cells

devour the TB bacillus, but in a small percentage of the people they are unable to control the infection and this leads to disease. An understanding of how mycobacteria manage to subdue these macrophages would go a long way in controlling the disease. So we study these host-pathogen interactions at different levels using various biochemical and genetic tools.

The TB bacilli are fast becoming resistant to the drugs that are being used routinely. Therefore, there is an urgent need to develop newer and better therapeutic agents. Search for novel antimycobacterial molecules from natural sources is another major interest of our lab. Synthetic molecules are also screened for their antimycobacterial activity.