Abstract
The purpose of the present study is to investigate the immunological activities of EPS-1 in the non-specific immune response and specific immune response of chickens. In vitro, the results showed that EPS-1 could increase the proliferation and cytokine secretion (IL-2, IL-4, IFN-γ and TNF-α) of spleen lymphocytes, expression of key surface molecules (MHC II, CD11c, CD40 and CD86) and cytokine secretion (TNF-α and IL-10) of matured chBM-DCs, phagocytic rate of matured chBM-DCs, and enhance the maturation and stimulating capacity of chBM-DCs. In vivo, EPS-1 could also prompt the HI antibody titer, boost the peripheral lymphocyte proliferation, enhance the release of cytokine products in blood (IFN-γ, IL-4 and IL-2) and duodenum (IL-17 and sIgA) of chickens. These results indicated that EPS-1 may have the potential as a powerful immune adjuvant in the treatment of chicken diseases.
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