NCIt definition : Interleukin-4 (153 aa, 17 kDa) is encoded by the human IL4 gene. This protein is
involved in the regulation of the expression of class II MHC molecules, Fc receptors
and cell surface-bound immunoglobulins.;
Alternative definition : NCI-GLOSS: One of a group of related proteins made by leukocytes (white blood cells)
and other cells in the body. Interleukin-4 is made by a type of T lymphocyte. It causes
B lymphocytes to increase and to make antibodies and also increases the production
of T lymphocytes. Interleukin-4 made in the laboratory is used as a biological response
modifier to boost the immune system in cancer therapy. Interleukin-4 is a type of
cytokine.;
Codes from synonyms : CDR0000044420; CDR0000045209;