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Hashikawa Y, Hayashi R, Tajima M, Okubo T, Azuma S, Kuwamura M, Takai N, Osada Y, Kunihiro Y, Mashimo T, Nishida K. Generation of knockout rabbits with X-linked severe combined immunodeficiency (X-SCID) using CRISPR/Cas9. Sci Rep 2020; 10:9957. [PMID: 32561775 PMCID: PMC7305219 DOI: 10.1038/s41598-020-66780-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 05/25/2020] [Indexed: 11/12/2022] Open
Abstract
Severe immunodeficient mice are widely used to examine human and animal cells behaviour in vivo. However, mice are short-lived and small in size; while large animals require specific large-scale equipment. Rabbits are also commonly employed as experimental models and are larger than mice or rats, easy to handle, and suitable for long-term observational and pre-clinical studies. Herein, we sought to develop and maintain stable strains of rabbits with X-linked severe combined immunodeficiency (X-SCID) via the CRISPR/Cas9 system targeting Il2rg. Consequently, X-SCID rabbits presented immunodeficient phenotypes including the loss of T and B cells and hypoplasia of the thymus. Further, these rabbits exhibited a higher success rate with engraftments upon allogeneic transplantation of skin tissue than did wild type controls. X-SCID rabbits could be stably maintained for a minimum of four generations. These results indicate that X-SCID rabbits are effective animals for use in a non-rodent model of severe immunodeficiency.
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Affiliation(s)
- Yoshiko Hashikawa
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
- Institute of Large Laboratory Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Ryuhei Hayashi
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan.
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Osaka, Japan.
| | - Masaru Tajima
- Institute of Large Laboratory Animal Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
- Institute of Experimental Animal Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Toru Okubo
- Department of Stem Cells and Applied Medicine, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Shohei Azuma
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Mitsuru Kuwamura
- Osaka Prefecture University School of Life and Environmental Sciences Veterinary Pathology, Osaka, Japan
| | | | | | - Yayoi Kunihiro
- Institute of Experimental Animal Science, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Tomoji Mashimo
- Institute of Experimental Animal Science, Graduate School of Medicine, Osaka University, Osaka, Japan.
- Laboratory Animal Research Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan.
| | - Kohji Nishida
- Department of Ophthalmology, Osaka University Graduate School of Medicine, Osaka, Japan
- Integrated Frontier Research for Medical Science Division, Institute for Open and Transdisciplinary Research Initiatives (OTRI), Osaka University, Osaka, Japan
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