Title |
Acquisition of resistance to avian leukosis virus subgroup B through mutations on tvb cysteine-rich domains in DF-1 chicken fibroblasts
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Published in |
Veterinary Research, September 2017
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DOI | 10.1186/s13567-017-0454-1 |
Pubmed ID | |
Authors |
Hong Jo Lee, Kyung Youn Lee, Young Hyun Park, Hee Jung Choi, Yongxiu Yao, Venugopal Nair, Jae Yong Han |
Abstract |
Avian leukosis virus (ALV) is a retrovirus that causes tumors in avian species, and its vertical and horizontal transmission in poultry flocks results in enormous economic losses. Despite the discovery of specific host receptors, there have been few reports on the modulation of viral susceptibility via genetic modification. We therefore engineered acquired resistance to ALV subgroup B using CRISPR/Cas9-mediated genome editing technology in DF-1 chicken fibroblasts. Using this method, we efficiently modified the tumor virus locus B (tvb) gene, encoding the TVB receptor, which is essential for ALV subgroup B entry into host cells. By expanding individual DF-1 clones, we established that artificially generated premature stop codons in the cysteine-rich domain (CRD) of TVB receptor confer resistance to ALV subgroup B. Furthermore, we found that a cysteine residue (C80) of CRD2 plays a crucial role in ALV subgroup B entry. These results suggest that CRISPR/Cas9-mediated genome editing can be used to efficiently modify avian cells and establish novel chicken cell lines with resistance to viral infection. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Unknown | 2 | 100% |
Demographic breakdown
Type | Count | As % |
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Members of the public | 2 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 26 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Bachelor | 4 | 15% |
Researcher | 4 | 15% |
Student > Ph. D. Student | 3 | 12% |
Student > Doctoral Student | 2 | 8% |
Other | 2 | 8% |
Other | 4 | 15% |
Unknown | 7 | 27% |
Readers by discipline | Count | As % |
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Biochemistry, Genetics and Molecular Biology | 7 | 27% |
Agricultural and Biological Sciences | 7 | 27% |
Veterinary Science and Veterinary Medicine | 2 | 8% |
Immunology and Microbiology | 1 | 4% |
Neuroscience | 1 | 4% |
Other | 1 | 4% |
Unknown | 7 | 27% |