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Article

A Comprehensive Strategy for Screening for Xenotransplantation-Relevant Viruses in a Second Isolated Population of Göttingen Minipigs

1
Robert Koch Institute, HIV and Other Retroviruses, 13353 Berlin, Germany
2
Robert Koch Institute, Centre for Biological Threats and Special Pathogens ZBS 4: Advanced Light and Electron Microscopy, 13353 Berlin, Germany
3
Department of Animal Sciences, University of Goettingen, Animal Breeding and Genetics Group, Albrecht-Thaer-Weg 3, 37075 Göttingen, Germany
4
Center for Integrated Breeding Research, University of Goettingen, Albrecht-Thaer-Weg 3, 37075 Göttingen, Germany
5
Robert Koch Institute, Robert Koch Fellow, 13353 Berlin, Germany
*
Author to whom correspondence should be addressed.
Viruses 2020, 12(1), 38; https://doi.org/10.3390/v12010038
Received: 29 November 2019 / Accepted: 24 December 2019 / Published: 29 December 2019
(This article belongs to the Section Animal Viruses)
Xenotransplantation using pig tissues and organs is under development in order to alleviate the increasing shortage of human transplants. Since xenotransplantation may be associated with the transmission of porcine microorganisms to the human recipient, the donor pigs should be carefully analyzed, especially for the presence of potentially zoonotic viruses. Göttingen Minipigs (GöMP) are potential donors of islet cells for the treatment of diabetes. Despite the fact that all animals produced at Ellegaard Göttingen Minipigs A/S carry porcine endogenous retroviruses (PERVs) in their genome and that very few animals were infected with porcine cytomegalovirus (PCMV), hepatitis E virus (HEV) and porcine lymphotropic herpesvirus (PLHV), no transmission of these viruses was observed in a preclinical trial transplanting GöMP islet cells into cynomolgus monkeys. Using a new comprehensive strategy, we then analyzed an isolated subpopulation of Göttingen Minipigs which remained at the University of Göttingen. We concentrated on 11 xenotransplantation-relevant viruses and combined co-incubation assays with susceptible human target cells and molecular biological methods to evaluate the risk posed by PERV. All animals in Göttingen carry PERV-A, PERV-B, and PERV-C in their genome but they are not infected with PCMV, PLHV and HEV. The difference may be explained by selection of negative animals and/or de novo infection. The PERV copy number was established using ddPCR (93 copies) and a human-tropic PERV-A/C was found released from PBMCs of one animal with a high expression of PERV-C. View Full-Text
Keywords: porcine viruses; xenotransplantation; porcine endogenous retroviruses (PERV); porcine cytomegalovirus (PCMV); hepatitis E virus (HEV); porcine lymphotropic herpesvirus (PLHV); porcine circovirus (PCV) porcine viruses; xenotransplantation; porcine endogenous retroviruses (PERV); porcine cytomegalovirus (PCMV); hepatitis E virus (HEV); porcine lymphotropic herpesvirus (PLHV); porcine circovirus (PCV)
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MDPI and ACS Style

Krüger, L.; Kristiansen, Y.; Reuber, E.; Möller, L.; Laue, M.; Reimer, C.; Denner, J. A Comprehensive Strategy for Screening for Xenotransplantation-Relevant Viruses in a Second Isolated Population of Göttingen Minipigs. Viruses 2020, 12, 38. https://doi.org/10.3390/v12010038

AMA Style

Krüger L, Kristiansen Y, Reuber E, Möller L, Laue M, Reimer C, Denner J. A Comprehensive Strategy for Screening for Xenotransplantation-Relevant Viruses in a Second Isolated Population of Göttingen Minipigs. Viruses. 2020; 12(1):38. https://doi.org/10.3390/v12010038

Chicago/Turabian Style

Krüger, Luise, Yannick Kristiansen, Emelie Reuber, Lars Möller, Michael Laue, Christian Reimer, and Joachim Denner. 2020. "A Comprehensive Strategy for Screening for Xenotransplantation-Relevant Viruses in a Second Isolated Population of Göttingen Minipigs" Viruses 12, no. 1: 38. https://doi.org/10.3390/v12010038

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