ArticleVirology journal2023
Detection of porcine cytomegalovirus, a roseolovirus, in pig ovaries and follicular fluid: implications for somatic cells nuclear transfer, cloning and xenotransplantation.
Article in Virology journal, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
6 citing papers in PubMed, 10 citations in OpenAlex.
- Evolution of Porcine Virus Isolation: Guidelines for Practical Laboratory Application.Microorganisms · 2025Review
- Large animal models in gynecology: status and future perspectives.Frontiers in veterinary science · 2025Review
- Molecular Detection of Porcine Cytomegalovirus, Porcine Parvovirus, Aujeszky Disease Virus and Porcine Reproductive and Respiratory Syndrome Virus in Wild Boars Hunted in Serbia during 2023.Veterinary sciences · 2024Article
- Targeted Integration of siRNA against Porcine Cytomegalovirus (PCMV) Enhances the Resistance of Porcine Cells to PCMV.Microorganisms · 2024Article
- Screening for Viruses in Indigenous Greek Black Pigs.Microorganisms · 2024Article
- The prevention strategies of swine viruses related to xenotransplantation.Virology journal · 2023Review
Corrections and comments
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Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPorcine cytomegalovirus (PCMV) is a porcine roseolovirus (PCMV/PRV) which is widely distributed in pigs. Transmission of PCMV/PRV in preclinical xenotransplantations was shown to significantly reduce the survival time of the pig transplants in non-human primates. PCMV/PRV was also transmitted in the first transplantation of a pig heart into a human patient. To analyze how PCMV/PRV could be introduced into pig breeds, especially considering cloned transgenic pigs, and subsequently spread in breeding facilities, we screened ovaries and derived materials which are used to perform somatic cell nuclear transfer (SCNT).
methodsDNA was isolated from ovarian tissues, follicular fluids, oocytes with cumulus cells, denuded oocytes and parthenotes. A real-time PCR with PCMV/PRV-specific primers and a probe was performed to detect PCMV/PRV. Furthermore, a Western blot assay using a recombinant fragment of the gB protein of PCMV/PRV was performed to screen for virus-specific antibodies in the follicular fluids.
resultsPCMV/PRV was found by real-time PCR in ovarian tissues, in the follicular fluid and in oocytes. In parthenotes the virus could not be detected, most-likely due to the low amount of DNA used. By Western blot assay specific antibodies against PCMV/PRV were found in 19 of 20 analyzed follicular fluids.
conclusionPCMV/PRV was found in ovarian tissues, in the follicular fluids and also in denuded oocytes, indicating that the virus is present in the animals of which the oocytes were taken from. Despite several washing steps of the denuded oocytes, which are subsequently used for microinjection or SCNT, the virus could still be detected. Therefore, the virus could infect oocytes during genetic modifications or stay attached to the surface of the oocytes, potentially infecting SCNT recipient animals.
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