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Wu H, Fan Z, Brandsrud M, Meng Q, Bobbitt M, Regouski M, Stott R, Sweat A, Crabtree J, Hogan RJ, Tripp RA, Wang Z, Polejaeva IA, Sullivan EJ. Generation of H7N9-specific human polyclonal antibodies from a transchromosomic goat (caprine) system. Sci Rep 2019; 9:366. [PMID: 30675003 PMCID: PMC6344498 DOI: 10.1038/s41598-018-36961-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/23/2018] [Indexed: 01/23/2023] Open
Abstract
To address the unmet needs for human polyclonal antibodies both as therapeutics and diagnostic reagents, building upon our previously established transchromosomic (Tc) cattle platform, we report herein the development of a Tc goat system expressing human polyclonal antibodies in their sera. In the Tc goat system, a human artificial chromosome (HAC) comprising the entire human immunoglobulin (Ig) gene repertoire in the germline configuration was introduced into the genetic makeup of the domestic goat. We achieved this by transferring the HAC into goat fetal fibroblast cells followed by somatic cell nuclear transfer for Tc goat production. Gene and protein expression analyses in the peripheral blood mononuclear cells (PBMC) and the sera, respectively, of Tc caprine demonstrated the successful expression of human Ig genes and antibodies. Furthermore, immunization of Tc caprine with inactivated influenza A (H7N9) viruses followed by H7N9 Hemagglutinin 1 (HA1) boosting elicited human antibodies with high neutralizing activities against H7N9 viruses in vitro. As a small ungulate, Tc caprine offers the advantages of low cost and quick establishment of herds, therefore complementing the Tc cattle platform in responses to a range of medical needs and diagnostic applications where small volumes of human antibody products are needed.
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Affiliation(s)
- Hua Wu
- SAB Biotherapeutics, Sioux Falls, SD, 57104, USA.,SAB Capra, LLC, Salt Lake City, UT, 84101, USA
| | - Zhiqiang Fan
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | | | - Qinggang Meng
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | | | - Misha Regouski
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | - Rusty Stott
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | - Alexis Sweat
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | - Jackelyn Crabtree
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Robert J Hogan
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Ralph A Tripp
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Zhongde Wang
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA.
| | - Irina A Polejaeva
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA.
| | - Eddie J Sullivan
- SAB Biotherapeutics, Sioux Falls, SD, 57104, USA. .,SAB Capra, LLC, Salt Lake City, UT, 84101, USA.
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Klein R, Bobbitt M. Measuring to improve. Manag Care Q 1996; 3:70-8. [PMID: 10151598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Rush Prudential Health Plans, a managed care company located in Chicago, Illinois, is implementing a service quality improvement process across the three products it markets in the Chicago area: The Anchor Plan (a primarily staff model HMO), The Affiliates Plan (a network model HMO), and The Plus Plan (a point of service plan). In 1994, the company instituted an annual member satisfaction research study, conducted across the three plans, and began building a link between external customer requirements and internal operations. The research process consisted of three stages: determining external customer requirements, translating these customer-defined "symptoms" into underlying root causes, and developing a service quality improvement action plan. Rush Prudential determined that traditional "report card" surveys would not meet their goals for the information measurement process. A detailed diagnostic telephone survey was used to provide a picture of the entire clinical encounter, from scheduling an appointment through the time a member left the physician's office.
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Affiliation(s)
- R Klein
- Market Strategies, Inc., USA
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