Abstract：
:Bovine viral diarrhea virus (BVDV) should be a ubiquitous viral pathogen to the cattle and sheep industry. This pathogen is responsible for severe economic losses. We previously showed that plasmid-mediated dual short hairpin RNA (shRNA) efficiently inhibit BVDV replication in bovine kidney epithelial (MDBK) cells. In this study, we delivered the dual shRNA system to sheep fibroblasts and generated transgenic cell colonies. These transgenic fibroblasts were further used for somatic cell nuclear transfer (SCNT). Three lambs were born at full term, but perished soon after birth. Integration of shRNA into the genome of cloned sheep was confirmed by PCR and expression of shRNA in transgenic sheep was confirmed by real-time PCR. Kidney epithelial cells were isolated from transgenic sheep and challenged with multiple BVDV subgenotypes (BVDV-1a, BVDV-1b and BVDV-1c). The dual shRNA expressed in transgenic kidney epithelial cells significantly inhibited BVDV replication in a cross-resistance manner. Our results showed that transgenic RNAi might be a useful tool for preparation of transgenic animals with increased resistance to BVDV.
journal_name
J Virol Methodsjournal_title
Journal of virological methodsauthors
Ni W,Qiao J,Ma Q,Wang J,Wang D,Zhao X,Cao Y,Li Q,Hu S,Chen Cdoi
10.1016/j.jviromet.2015.03.014subject
Has Abstractpub_date
2015-06-15 00:00:00pages
66-70eissn
0166-0934issn
1879-0984pii
S0166-0934(15)00104-4journal_volume
218pub_type
杂志文章abstract：:Formalinized chick erythrocytes agglutinated with Japanese encephalitis virus antigens over a wider range of pH (6.0-7.2) than fresh erythrocytes (pH 6.4-6.8). The virus antigens were unstable below pH 7.0 and therefore the use of the formalinized erythrocytes made it possible for a one-diluent system of the hemagglut...
journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
pub_type： 杂志文章
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abstract：:A detailed growth and purification scheme suitable for producing relatively large quantities of fully active, pure SV40 is presented together with data on recovery and purity at each step of the procedure. The scheme was designed to prevent the initial binding of virus to cell components as well as contamination of th...
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
pub_type： 杂志文章
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journal_title：Journal of virological methods
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更新日期：2013-11-01 00:00:00
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journal_title：Journal of virological methods
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journal_title：Journal of virological methods
pub_type： 杂志文章
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journal_title：Journal of virological methods
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abstract：:Equine infectious anaemia virus (EIAV) was adapted to the Cf2Th cell line, a heterologous malignant line from canine thymus. A persistent infection was monitored for 100 serial passages by demonstrating the presence of virus and viral antigens at each 10th passage by electron-microscopy, immunodiffusion and immunofluo...
journal_title：Journal of virological methods
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doi：10.1016/0166-0934(86)90056-x
更新日期：1986-07-01 00:00:00
