Learn Glossary biochemistry

Interleukin-6 (IL-6)

Pleiotropic cytokine secreted by macrophages, T cells, and adipocytes that drives hepatic acute-phase response (including CRP and hepcidin synthesis), B cell differentiation, and chronic inflammatory disease.

Also: IL-6

IL-6 mediates much of the anemia-of-inflammation phenotype by inducing hepcidin via STAT3. Chronic IL-6 elevation is a feature of obesity, sarcopenia, depression, and cardiovascular disease. Tocilizumab (anti-IL-6R) is used in rheumatoid arthritis and cytokine release syndromes. Dietary omega-3 fatty acids and weight loss modestly lower IL-6.

How one textbook covers it

  • Modern Nutrition in Health and Disease, 12th ed.Ch 65: Nutrition and Inflammatory Processes

    IL-6 mediates much of the anemia-of-inflammation phenotype by inducing hepcidin via STAT3. Chronic IL-6 elevation is a feature of obesity, sarcopenia, depression, and cardiovascular disease. Tocilizumab (anti-IL-6R) is used in rheumatoid arthritis and cytokine release syndromes. Dietary omega-3 fatty acids and weight loss modestly lower IL-6.

Related terms

CRP, Hepcidin, Inflammation, TNF-alpha