Lymphokines are released by which cells?

Lymphokines are released by which cells?

• A. B Cells
• B. Macrophages
• C. Activated T Cells
• D. Dendritic Cells

Answer: (B)

Lymphokines are signaling proteins produced by lymphocytes to coordinate immune responses. Among the cells listed, activated T cells are the classic source of lymphokines, such as IL-2 and interferon-gamma, which drive T cell proliferation and help activate other immune cells. B cells are also lymphocytes but are best known for antibody production rather than being primary producers of lymphokines. Macrophages produce monokines, a different category of cytokines derived from monocytes. Dendritic cells can secrete cytokines too, but the term lymphokine specifically refers to lymphocyte-derived signals, with activated T cells being the primary producers.

Lymphokines are signaling proteins produced by lymphocytes to coordinate immune responses. Among the cells listed, activated T cells are the classic source of lymphokines, such as IL-2 and interferon-gamma, which drive T cell proliferation and help activate other immune cells. B cells are also lymphocytes but are best known for antibody production rather than being primary producers of lymphokines. Macrophages produce monokines, a different category of cytokines derived from monocytes. Dendritic cells can secrete cytokines too, but the term lymphokine specifically refers to lymphocyte-derived signals, with activated T cells being the primary producers.