Science & TechnologySource: The Hindu
2025 Nobel Prize in Physiology Awarded for Discoveries in Immune Tolerance and Regulatory T Cells
Wednesday, 8 October 2025
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Last Updated: 2025-10-08 - The 2025 Nobel Prize in Physiology has been awarded for pioneering discoveries in immune tolerance and regulatory T cells. This is crucial for UPSC aspirants, particularly for GS Paper 3, as it relates to advancements in science and technology impacting health and disease management.
Key Facts About 2025 Nobel Prize in Physiology
- Shimon Sakaguchi (Japan) discovered regulatory T cells (Tregs) in 1995.
- Mary Brunkow (USA) and Fred Ramsdell (USA) identified FOXP3 gene mutations causing IPEX in 2001.
- Their work elucidates how the immune system maintains peripheral tolerance.
- Targeting Tregs can enhance immune responses against cancer.
- Boosting Tregs may prevent autoimmune diseases.
- Improved T cell regulation reduces organ rejection risks in transplants.
Significance of Immune Tolerance Discoveries
The discoveries in immune tolerance and regulatory T cells have macro-level significance, aligning with India's strategic health goals. These advancements can revolutionize cancer therapies and autoimmune disease management, contributing to India's healthcare sector growth. With an increasing focus on biotechnology, these findings position India to enhance its global health rankings and foster international collaborations in medical research.
Related Government Schemes/Policies
- National Health Mission (NHM): Aims to provide accessible, affordable, and quality healthcare.
- Biotechnology Industry Research Assistance Council (BIRAC): Supports innovative research in biotechnology.
UPSC Relevance
- GS Paper 3: Science and Technology - Developments and their applications and effects in everyday life.
- Prelims Angle: Questions on the role of Tregs, FOXP3 gene, and immune tolerance mechanisms.
- Mains Angle: Analytical themes on the impact of biotechnology on healthcare and disease management.
- Essay Paper: Topics on scientific advancements and their societal implications.
FAQ Section
- What is immune tolerance?
Immune tolerance is the immune system's ability to recognize and not attack the body's own tissues, preventing autoimmune diseases. - Why is the discovery of regulatory T cells important?
Regulatory T cells (Tregs) are crucial for maintaining immune tolerance and preventing autoimmune disorders, thus having significant therapeutic potential. - What are the key features of the FOXP3 gene?
The FOXP3 gene is essential for the development and function of Tregs, and mutations in this gene can lead to autoimmune diseases like IPEX syndrome.
Detailed Coverage
- Shimon Sakaguchi (Japan) discovered regulatory T cells (Tregs) in 1995.
- Mary Brunkow (USA) and Fred Ramsdell (USA) identified FOXP3 gene mutations causing IPEX in 2001.
- Combined contributions explain how the immune system maintains peripheral tolerance.
- Targeting Tregs can enhance immune responses against cancer.
- Boosting Tregs may prevent autoimmune diseases.
- Improved T cell regulation reduces organ rejection risks in transplants.
- Immune system defends against pathogens and abnormal cells.
- Innate immunity provides rapid, non-specific defense.
- Adaptive immunity offers targeted responses and has a memory for pathogens.
- T-cells recognize and destroy infected cells.
- B-cells produce antibodies to neutralize foreign antigens.
- Immune tolerance prevents the body from attacking its own tissues.
- Central tolerance eliminates self-reactive immune cells in lymphoid organs.
- Peripheral tolerance prevents remaining self-reactive cells from activation.
- Tregs suppress immune responses and maintain immune tolerance.
- Tregs are vital in preventing autoimmune disorders like rheumatoid arthritis and type 1 diabetes.
Science & Technology