PMID- 19948265 OWN - NLM STAT- MEDLINE DCOM- 20100223 LR - 20131121 IS - 1873-2518 (Electronic) IS - 0264-410X (Linking) VI - 28 IP - 5 DP - 2010 Feb 3 TI - Adjuvant effects of chicken interleukin-18 in avian Newcastle disease vaccine. PG - 1148-55 LID - 10.1016/j.vaccine.2009.11.042 [doi] AB - Interleukin-18 (IL-18) can induce interferon-gamma (IFN-gamma) production and promote Th1 immunity, and hence, it modulates immune functions. In the present study, the in vitro and in vivo immunomodulatory activities of full length or mature chicken IL-18 expressed in a prokaryotic expression system (pCHIL18-F and pCHIL18-M, respectively) and chicken IL-18 expressed in a eukaryotic expression system (euCHIL18) were examined. Results showed that pCHIL18-F, pCHIL18-M and euCHIL18 significantly enhanced IFN-gamma mRNA expression in chicken splenocytes, which successfully increased IFN-gamma-induced nitric oxide (NO) synthesis by macrophages. Vaccination with cell-cultured Newcastle disease vaccine (NDTC) co-administrated with pCHIL18-F, pCHIL18-M or euCHIL18 resulted in significant increments of hemagglutination inhibition (HI) titers, cell proliferation of peripheral blood mononuclear cells (PBMC), and ratios of CD8(+) to CD4(+) in chickens compared with inoculation of PBS or NDTC alone. Thus, full length and mature chicken IL-18 expressed using a prokaryotic system and using a eukaryotic system showed equivalent in vitro and in vivo biological activities, and all forms effectively enhanced cell-mediated and humoral immunity, suggesting possible future use as a potential adjuvant in chicken NDTC vaccine production. CI - (c) 2009 Elsevier Ltd. All rights reserved. FAU - Hung, Li-Hsiang AU - Hung LH AD - Department of Veterinary Medicine, National Pingtung University of Science & Technology, 1, Hseuh Fu Road, Neipu, Pingtung 912, Taiwan, ROC. FAU - Li, Hsin-Pei AU - Li HP FAU - Lien, Yi-Yang AU - Lien YY FAU - Wu, Mei-Li AU - Wu ML FAU - Chaung, Hso-Chi AU - Chaung HC LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20091128 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Adjuvants, Immunologic) RN - 0 (Interleukin-18) RN - 0 (Recombinant Proteins) RN - 0 (Viral Vaccines) RN - 31C4KY9ESH (Nitric Oxide) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Adjuvants, Immunologic/genetics/*pharmacology MH - Animals MH - CD8-Positive T-Lymphocytes/immunology MH - Chickens MH - Immunity, Cellular/drug effects/immunology MH - Immunity, Humoral/drug effects/immunology MH - Interferon-gamma/immunology MH - Interleukin-18/genetics/immunology/*pharmacology MH - Newcastle Disease/immunology/*prevention & control MH - Newcastle disease virus/*immunology MH - Nitric Oxide/immunology MH - Recombinant Proteins/genetics/immunology/pharmacology MH - Th1 Cells/immunology MH - Viral Vaccines/genetics/immunology/*pharmacology EDAT- 2009/12/02 06:00 MHDA- 2010/02/24 06:00 CRDT- 2009/12/02 06:00 PHST- 2009/07/23 00:00 [received] PHST- 2009/10/21 00:00 [revised] PHST- 2009/11/11 00:00 [accepted] PHST- 2009/12/02 06:00 [entrez] PHST- 2009/12/02 06:00 [pubmed] PHST- 2010/02/24 06:00 [medline] AID - S0264-410X(09)01820-9 [pii] AID - 10.1016/j.vaccine.2009.11.042 [doi] PST - ppublish SO - Vaccine. 2010 Feb 3;28(5):1148-55. doi: 10.1016/j.vaccine.2009.11.042. Epub 2009 Nov 28.