PMID- 25355794 OWN - NLM STAT- MEDLINE DCOM- 20150827 LR - 20211021 IS - 1556-679X (Electronic) IS - 1556-6811 (Print) IS - 1556-679X (Linking) VI - 22 IP - 1 DP - 2015 Jan TI - A eukaryotic expression plasmid carrying chicken interleukin-18 enhances the response to newcastle disease virus vaccine. PG - 56-64 LID - 10.1128/CVI.00636-14 [doi] AB - Interleukin-18 (IL-18) is an important cytokine involved in innate and acquired immunity. In this study, we cloned the full-length chicken IL-18 (ChIL-18) gene from specific-pathogen-free (SPF) chicken embryo spleen cells and provided evidence that the ChIL-18 gene in a recombinant plasmid was successfully expressed in chicken DT40 cells. ChIL-18 significantly enhanced gamma interferon (IFN-gamma) mRNA expression in chicken splenocytes, which increased IFN-gamma-induced nitric oxide (NO) synthesis by macrophages. The potential genetic adjuvant activity of the ChIL-18 plasmid was examined in chickens by coinjecting ChIL-18 plasmid and inactivated Newcastle disease virus (NDV) vaccine. ChIL-18 markedly elevated serum hemagglutination inhibition (HI) titers and anti-hemagglutinin-neuraminidase (anti-HN)-specific antibody levels, induced the secretion of both Th1- (IFN-gamma) and Th2- (interleukin-4) type cytokines, promoted the proliferation of T and B lymphocytes, and increased the populations of CD3(+) T cells and their subsets, CD3(+) CD4(+) and CD3(+) CD8(+) T cells. Furthermore, a virus challenge revealed that ChIL-18 contributed to protection against Newcastle disease virus challenge. Taken together, our data indicate that the coadministration of ChIL-18 plasmid and NDV vaccine induces a strong immune response at both the humoral and cellular levels and that ChIL-18 is a novel immunoadjuvant suitable for NDV vaccination. CI - Copyright (c) 2015, American Society for Microbiology. All Rights Reserved. FAU - Wang, Chen AU - Wang C AD - College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China wangchen2001@126.com xiangchaoc1966@126.com. FAU - Li, Xiaokang AU - Li X AD - College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China. FAU - Zhang, Chunjie AU - Zhang C AD - College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China. FAU - Wu, Tingcai AU - Wu T AD - College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China. FAU - Li, Yinju AU - Li Y AD - College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China. FAU - Cheng, Xiangchao AU - Cheng X AD - College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China wangchen2001@126.com xiangchaoc1966@126.com. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20141029 PL - United States TA - Clin Vaccine Immunol JT - Clinical and vaccine immunology : CVI JID - 101252125 RN - 0 (Adjuvants, Immunologic) RN - 0 (Antibodies, Viral) RN - 0 (Antigens, Viral) RN - 0 (Interleukin-18) RN - 0 (Vaccines, Inactivated) RN - 0 (Viral Vaccines) SB - IM MH - Adjuvants, Immunologic/genetics/*metabolism MH - Animals MH - Antibodies, Viral/blood MH - Antigens, Viral/immunology MH - B-Lymphocytes/immunology MH - Cell Proliferation MH - Chickens MH - *Gene Expression MH - Hemagglutination Inhibition Tests MH - Interleukin-18/genetics/*metabolism MH - Newcastle Disease/immunology/*prevention & control MH - Newcastle disease virus/immunology MH - T-Lymphocyte Subsets/immunology MH - Vaccines, Inactivated/administration & dosage/immunology MH - Viral Vaccines/administration & dosage/*immunology PMC - PMC4278935 EDAT- 2014/10/31 06:00 MHDA- 2015/08/28 06:00 PMCR- 2015/07/01 CRDT- 2014/10/31 06:00 PHST- 2014/10/31 06:00 [entrez] PHST- 2014/10/31 06:00 [pubmed] PHST- 2015/08/28 06:00 [medline] PHST- 2015/07/01 00:00 [pmc-release] AID - CVI.00636-14 [pii] AID - 00636-14 [pii] AID - 10.1128/CVI.00636-14 [doi] PST - ppublish SO - Clin Vaccine Immunol. 2015 Jan;22(1):56-64. doi: 10.1128/CVI.00636-14. Epub 2014 Oct 29.