interleukin secretion trait interleukin-3 secretion trait VT:0008695 Any measurable or observable characteristic related to the controlled release of a multilineage cell growth factor secreted by lymphocytes, epithelial cells and astrocytes which stimulates clonal proliferation and differentiation of various types of blood and tissue cells. mast-cell colony-stimulating factor secretion multipotential colony-stimulating factor secretion IL3 secretion P-cell stimulating factor secretion erythrocyte burst-promoting factor secretion eosinophil-mast cell growth-factor secretion Trait.ontology colony-stimulating factor 2 alpha secretion IL-3 secretion hematopoietin-2 secretion