Cytokines are a group of related molecules involved in intercellular communication.  They also play a role in the immune system.  At present, despite a previous distinction, they are now considered to be a class of hormone.  Immunoglobulin and interferon are types of cytokines.  

Cytokine at Wikipedia

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.