Interleukin 2
Interleukin 2 (IL-2) is a type of Cytokine that plays a pivotal role in the immune system. It is produced by T cells in response to antigen stimulation.
Pronunciation
Interleukin 2 is pronounced as /ˌɪntərˈluːkɪn tuː/.
Etymology
The term "Interleukin" is derived from "inter-", a prefix meaning "between", and "-leukin", which is derived from "leukocyte", the formal term for a white blood cell. The number "2" signifies that it was the second interleukin to be discovered.
Function
Interleukin 2 is primarily known for its role in promoting the growth and differentiation of T cells. When an antigen is detected, T cells produce IL-2, which then stimulates the growth and differentiation of other T cells to fight off the antigen. This makes IL-2 a crucial component of the immune response.
Related Terms
- Cytokine: A general term for a large group of proteins that are secreted by specific cells of the immune system and carry signals locally between cells.
- T cells: A type of white blood cell that is essential for immune responses.
- Antigen: A substance that induces an immune response, especially the production of antibodies.
See Also
External links
- Medical encyclopedia article on Interleukin 2
- Wikipedia's article - Interleukin 2
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