Answer :
Cytokines are chemical messengers that direct immune cellular reactions.
How do cytokines work?
The word "cytokine" is a compound of the Greek terms "cyto," which means cell, and "kinos," which means movement. Cytokines are cell signaling molecules that promote the movement of cells toward sites of inflammation, infection, and damage as well as help cells communicate with one another during immune responses.
Peptide, protein, and glycoprotein (proteins with a sugar attached) types of cytokines are all available. The huge family of molecules known as cytokines is divided into several subgroups because there is no single classification scheme for them.
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