Data/hora: 10/06/2024 01:02:10

Provedor de dados: 	Obihiro University of Agriculture and Veterinary Medicine Academic Repository (OAK)	
País: 	Japan	
Título: 	Lung Cytokine Gene Expression is Correlated with Increased Severity of Disease in a Novel H4N8 Influenza Virus Isolated from Shorebirds.	
Autores: 	ARAI, Yasuha; N. BUI, Vuong; TAKEDA, Yohei; Q. TRINH, Dai; NIBUNO, Sayo; RUNSTADLER, Jonathan; OGAWA, Haruko; IMAI, Kunitoshi; 小川, 晴子.	
Data: 	2013	
Ano: 	2013	
Palavras-chave: 	Avian influenza virus; Cytokine; H4N8; Mouse; Pathogenicity.	
Resumo: 	The lung cytokine gene expression profiles of mice infected with 2 strains of H4N8 viruses isolated from shorebirds and reference H4 viruses from ducks are compared. Major differences between the two H4N8 strains of shorebirds, one of which causes a severe respiratory disease in mice, are in the PB1 and NS1 genes. In mice with H4N8 virus induced pneumonia, overall expression of TNF-α, IL-6 and IL-12 genes was markedly higher than in mice infected with other H4 viruses tested, although gene expression of type I interferon was not increased until day 4 post viral infection. In contrast, in mice infected with a comparison H4N8 strain, gene expression of type I interferon peaked on day 1 post viral infection. Overall, the cytokine response corresponds with the severity of disease caused by shorebird H4N8 virus. The results obtained in this study provide valuable information to understand the immunopathology induced by a low pathogenic avian influenza virus, which may be useful in preparation for outbreaks of novel influenza A virus.	
Idioma: 	Inglês	
Identificador: 	http://ir.obihiro.ac.jp/dspace/handle/10322/4061	
Editor: 	日本獣医学会	
Fonte: 	日本獣医学会