The cytokines are biologically active proteinous substances secreted by monocytes, lymphocytes and other cell and are actively involved in innate immunity, acquired immunity and inflammation. The cytokines released by lymphocytes and monocytes are known as lymphokines and monokines respectively. Acting through specific receptors, these molecules are of utmost importance to the immune system, work by regulating growth, development, and maturation of various types of cells. In a number of complexes reactions of the body few cytokines increase or inhibit the action of other cytokines. They also play a very important role in our health and diseased state.

Keywords: Molecular cross talks, Inflammatory cytokines, Cytokine receptors