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Subramaniam S, Overend C, Yugo DM, Heffron CL, Matzinger SR, Rogers AJ, Tian D, Cao QM, Kenney SP, Meng XJ. Isolation of Peripheral Blood CD8 T Cells Specific to Porcine Reproductive and Respiratory Syndrome Virus Utilizing Porcine CD137 Activation Marker. Viral Immunol 2018; 31:333-337. [PMID: 29489438 DOI: 10.1089/vim.2017.0189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
CD137 is a costimulatory molecule transiently expressed on activated T cells after mitogen or antigen stimulation that can be exploited for isolating antigen-specific T cells as reported in mouse models. By utilizing an antiporcine CD137 monoclonal antibody (mAb, clone 3B9) developed in our laboratory, we isolated virus-specific CD8β T cells from peripheral blood of pigs experimentally infected with different porcine reproductive and respiratory syndrome virus (PRRSV) strains. Similar to mouse, porcine CD8β T cells also express CD137 transiently upon Concavalin A stimulation while the unstimulated cells did not. Most frequently, virus-specific CD8β T cells were isolated at low levels from peripheral blood of pigs experimentally infected with PRRSV strains VR2385, NADC20, and MN184B at 49 and 63 days postinfection. The results suggest that porcine CD137-specific mAb is a useful tool for isolating virus-specific CD8 T cells from peripheral blood and tissues of pigs after in vitro stimulation with viral antigen.
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Affiliation(s)
- Sakthivel Subramaniam
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Christopher Overend
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Danielle M Yugo
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - C Lynn Heffron
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Shannon R Matzinger
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Adam J Rogers
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Debin Tian
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Qian M Cao
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Scott P Kenney
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
| | - Xiang-Jin Meng
- Department of Biomedical Sciences & Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic Institute and State University , Blacksburg, Virginia
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