Cytokines - 1
Definition of cytokine:
*   Lymphokines
*   Interleukins (IL)
*   a diverse group of proteins (mainly glycoproteins) that modulate functional activities of cells
*   Monokines
Classes of cytokine:
*   Interferons
*   Chemokines
*   Colony-Stimulating factors (CSF)
*   Kit ligand