Psoroptes ovis

详细信息    查看全文

• 作者：Alasdair J. Nisbet ; Aileen M. Halliday ; Lois Parker ; W. David Smith ; Fiona Kenyon ; David P. Knox ; John F. Huntley
• 关键词：Psoroptes ovis ; Astigmata ; Acari ; Sheep scab mite ; Glutathione S-transferase (GST) ; EC2.5.1.18 ; Recombinant vaccine ; Catchin-like protein (CLP)
• 刊名：Experimental Parasitology
• 出版年：2008
• 出版时间：October 2008
• 年：2008
• 卷：120
• 期：2
• 页码：194-199
• 全文大小：329 K

文摘

Serum from successful vaccine trials against the sheep scab mite, Psoroptes ovis, was used to immunoscreen a cDNA library constructed from mixed-stage and gender P. ovis to identify potential recombinant vaccine candidates. Immunodominant recombinant proteins recognised by IgG in these sera were selected for further analysis. Two candidates were identified in this way; a catchin-like protein (CLP) and a novel mu class glutathione S-transferase (GST). Both candidates were expressed in bacteria as recombinant proteins, the GST as an active enzyme, and combined with four other recombinant allergens in a multi-component recombinant vaccine. Strong serum IgG responses were induced in sheep against each of the components of the recombinant vaccine, however, the protective efficacy of the vaccine could not be determined because of variability in the establishment of a challenge infection.