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Xiaoyu Deng,Yanlong Cong,Renfu Yin,Guilian Yang,Chan Ding,Shengqing Yu,Xiufan Liu,Chun-feng Wang,Zhuang Ding 대한수의학회 2014 JOURNAL OF VETERINARY SCIENCE Vol.15 No.4
Characteristic clinical manifestations of Newcastle diseaseinclude leukopenia and immunosuppression. Peripheral bloodmononuclear cells (PBMCs) are the main targets of Newcastledisease virus (NDV) infection. To survey changes in proteomicexpression in chicken PBMCs following NDV infection,PBMC proteins from 30 chickens were separated using twodimensionalelectrophoresis (2-DE) and subjected to massspectrometry analysis. Quantitative intensity analysis showedthat the expression of 78 proteins increased more thantwo-fold. Thirty-five proteins exhibited consistent changes inexpression and 13 were identified as unique proteins bymatrix assisted laser desorption ionization-time of flight massspectrometer/mass spectrometer including three that weredown-regulated and 10 that were up-regulated. These proteinswere sorted into five groups based on function: macromolecularbiosynthesis, cytoskeleton organization, metabolism, stressresponses, and signal transduction. Furthermore, Westernblot analysis confirmed the down-regulation of integrin-linkedkinase expression and up-regulation of lamin A production. These data provide insight into the in vivo response of targetcells to NDV infection at the molecular level. Additionally,results from this study have helped elucidate the molecularpathogenesis of NDV and may facilitate the development ofnew antiviral therapies as well as innovative diagnostic methods.
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Rui Zhu,Xueqin Yang,Jianjun Zhang,Danwen Xu,Jiawen Fan,Huoying Shi,Shifeng Wang,Xiufan Liu 대한수의학회 2018 Journal of Veterinary Science Vol.19 No.3
The subtype H9N2 avian influenza virus greatly threatens the Chinese poultry industry, even with annual vaccination. Waterfowl can be asymptomatically infected with the H9N2 virus. In this study, three H9N2 virus strains, designated A/Goose/Jiangsu/YZ527/2011 (H9N2, Gs/JS/YZ527/11), A/Goose/Jiangsu/SQ119/2012 (H9N2, Gs/JS/SQ119/12), and A/Goose/Jiangsu/JD564/2012 (H9N2, Gs/JS/JD564/12), were isolated from domestic geese. Molecular characterization of the three isolates showed that the Gs/JS/YZ527/11 virus is a double-reassortant virus, combining genes of A/Quail/Hong Kong/G1/97 (H9N2, G1/97)-like and A/Chicken/Shanghai/F/98 (H9N2, F/98)-like; the Gs/JS/SQ119/12 virus is a triple-reassortant virus combining genes of G1/97-like, F/98-like, and A/Duck/Shantou/163/2004 (H9N2, ST/163/04)-like. The sequences of Gs/JS/JD564/12 share high homology with those of the F/98 virus, except for the neuraminidase gene, whereas the internal genes of Gs/JS/YZ527/11 and Gs/JS/SQ119/12 are closely related to those of the H7N9 viruses. An infectivity analysis of the three isolates showed that Gs/JS/SQ119/12 and Gs/JS/YZ527/11 replicated well, with seroconversion, in geese and chickens, the Gs/JS/JD564/12 did not infect well in geese or chickens, and the F/98 virus only infected chickens, with seroconversion. Emergence of these new reassortant H9N2 avian influenza viruses indicates that these viruses can infect both chicken and goose and can produce different types of lesions in each species.
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