Interleukins are named based on the historical understanding of their function and the cells they interact with.
The name "interleukin" is a compound word formed from two parts:
- "Inter": This prefix signifies "between," suggesting communication or interaction between things.
- "Leukin": This part is derived from the word leukocytes, which are white blood cells.
Originally, it was believed that these molecules were primarily produced by leukocytes and acted specifically on other leukocytes, facilitating communication between these immune cells.
Here's a breakdown of the name origin:
- Part 1: Inter
- Meaning: Communication or interaction between
- Part 2: Leukin
- Derived from: Leukocytes (white blood cells)
This naming convention, combining "inter" and "leukin," directly reflects the initial hypothesis that these molecules served as messengers operating between leukocytes to coordinate immune responses.