Woo Hyun Kim, Wongi Min, Kwang Il Park, Hyun S Lillehoj, Cherry P Fernandez-Colorado, Rochelle A Flores, Paula Leona T Cammayo, Binh Thanh Nguyen
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Expression of Chicken NK-Lysin and Its Role in Chicken Coccidiosis Induced by Eimeria necatrix.
Coccidiosis in chickens is an intestinal parasitic disease caused by protozoan parasites named Eimeria spp. In some Eimeria infections, intestinal lymphocytes are known to highly express chicken NK-lysin (cNK-lysin), an antimicrobial peptide with anticoccidial activity. Therefore, this study aims to investigate the expression of cNK-lysin in E. necatrix-infected chickens and its role in E. necatrix infection. The expression of cNK-lysin transcript was significantly increased in E. necatrix sporozoites-treated lymphocytes. In E. necatrix infection, cNK-lysin transcript was induced in intestinal lymphocytes but not in the spleen. The recombinant cNK-lysin exhibited anticoccidial activity against E. necatrix sporozoites as well as immunomodulatory activity on macrophages by inducing proinflammatory cytokines. These results indicated that E. necatrix infection induces high local expression of cNK-lysin and the secreted cNK-lysin helps protect coccidiosis.
期刊介绍:
The Korean Journal of Parasitology is the official journal paperless, on-line publication after Vol. 53, 2015 of The Korean Society for Parasitology and Tropical Medicine. Abbreviated title is ‘Korean J Parasitol’. It was launched in 1963. It contains original articles, case reports, brief communications, reviews or mini-reviews, book reviews, and letters to the editor on parasites of humans and animals, vectors, host-parasite relationships, zoonoses, and tropical medicine. It is published bimonthly in February, April, June, August, October, and December each year. Supplement numbers are at times published. All of the manuscripts are peer-reviewed.