Related Experiment Video
Updated: Sep 10, 2025

The bm12 Inducible Model of Systemic Lupus Erythematosus SLE in C57BL/6 Mice
Published on: November 1, 2015
Understanding Autoimmune Response Mechanisms in Leprosy.
Vinay Kumar Pathak1,2, Itu Singh1, Shoor Vir Singh2
1Stanley Browne Laboratory, The Leprosy Mission Community Hospital, Delhi, India.
Leprosy reactions are immunological complications linked to Mycobacterium leprae infection. This review explores how M. leprae may trigger autoimmune responses, contributing to disease progression and immune dysregulation.
Area of Science:
- Immunology
- Infectious Diseases
- Autoimmunity
Background:
- Leprosy, caused by Mycobacterium leprae, is a granulomatous disease affecting nerves, skin, and mucous membranes.
- Leprosy reactions are immunological complications that can occur anytime during the disease, regardless of treatment.
- These reactions highlight potential immune dysregulation and autoimmune responses in leprosy patients.
Purpose of the Study:
- To explore the potential link between Mycobacterium leprae infection and autoimmune responses.
- To emphasize the role of immune dysregulation in the pathogenesis of leprosy reactions.
- To provide a comprehensive review of leprosy reactions within the framework of autoimmunity.
Main Methods:
- Review of previously documented research on leprosy, M. leprae, and autoimmune mechanisms.
- Analysis of how pathogens, including mycobacteria, can induce or modulate host immune responses.
- Exploration of concepts like molecular mimicry and superantigens in the context of leprosy.
Main Results:
- Mycobacterium leprae infection may impair host regulatory mechanisms, triggering autoimmune manifestations.
- Pathogens can induce autoimmunity through molecular mimicry and promote chronic inflammation.
- Leprosy reactions are significantly influenced by autoimmune processes initiated by M. leprae.
Conclusions:
- Autoimmune processes play a crucial role in leprosy reactions.
- Understanding the immune interactions between M. leprae and the host is vital for disease management.
- Further research into these immunological interactions may lead to improved therapeutic strategies for leprosy.
Related Concept Videos
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...
Autoimmune Disorders
Concept and Mechanism of Autoimmune Diseases
The immune...
Cell-mediated Immune Responses
B Cell Activation and Differentiation
When naive B cells encounter a specific antigen that can bind to the B cell receptor (BCR) on their surface, they undergo sensitization to respond to the antigen's presence. Sensitization begins with...
Allergic Drug Reactions
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...

