IL-7 (Interleukin 7)

Interleukin-7 (IL-7) is a protein, or cytokine, that plays a vital role in the immune system. It helps the development, survival, and growth of T cells, which are critical for fighting infections and diseases. IL-7 is produced mainly by cells in the bone marrow and other tissues, and it signals to immune cells to divide and mature. Without enough IL-7, the immune system can weaken, making it harder to fight off illnesses. It is essential for maintaining a healthy immune response and immune cell balance.