IFNy - Interferon, a growing cytokine family

IL-1 - Interleukin 1, a proinflammitory cytokine

IL-2 - A strong mediator of the immune resoponse in many cell types

IL-3 - Stimulates proliferation of pluripotent hematopoietic stem cells

IL-4 - Acts as a strong immuno-modulatory promotor

IL-5 - Associated with growth and differentiation of B-cells and eosinophils

IL-6 - Multifunctional protein involved with most immunological processes

IL-12 - Acts as a chemoattractant for macrophages

IL-15 - Similar to IL-2, stimulates T-cell and B-cell proliferation

IL-17 - A mediator of communication in the immune system

IL-18 - Pro-inflammatory cytokine

IL-23 - Has similar active sites to IL-12

IL-32 - Pro-inflammatory cytokine

JAK - Family of tyrosine kinases involved in membrane bound receptor signals

JE - see CCL2

Lactoferrin - Glycoprotein also known as transferrin

Leptin - Produced by adipocytes, required for control of bodyweight