... cytokines; interleukin; innate immunity; fish;expression analysis.Cytokines play a significant role in initiating and regulatingthe in ammatory process, which is an important defensesystem in ... defensesystem in innate immunity. Cytokines are subdivided intofamilies such as interleukins (ILs), lymphokines, growthfactors, interferons (IFNs) and chemokines. IL-10, initiallyknown as cytokine synthesis ... obtained from head kidney, spleen, intestineand gill tissues; however, a more pronounced expression of carp IL-10 was observed in head kidney and intestinetissues. A semiquantitative analysis of...