Factors Influencing the Transfer of Porcine Endogenous Retroviruses across the Membrane in Bioartificial Livers
| العنوان: | Factors Influencing the Transfer of Porcine Endogenous Retroviruses across the Membrane in Bioartificial Livers |
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| المؤلفون: | Xiaolei Shi, Jiang-qiang Xiao, Yitao Ding, Zhongze Gu, Yue Zhang, Jia-jun Tan, Bing Han, Xianwen Yuan |
| المصدر: | The International Journal of Artificial Organs. 35:385-391 |
| بيانات النشر: | SAGE Publications, 2012. |
| سنة النشر: | 2012 |
| مصطلحات موضوعية: | Time Factors, Swine, Biomedical Engineering, Medicine (miscellaneous), Endogenous retrovirus, Bioengineering, Endogeny, Risk Assessment, law.invention, Biomaterials, Bioreactors, Retrovirus, Artificial liver, law, Animals, Humans, Virulence, biology, Reverse Transcriptase Polymerase Chain Reaction, Porcine endogenous retrovirus, Endogenous Retroviruses, Bioartificial liver device, Membranes, Artificial, Mesenchymal Stem Cells, General Medicine, biology.organism_classification, Liver, Artificial, Virology, Coculture Techniques, Cell biology, HEK293 Cells, Membrane, Hepatocytes, RNA, Viral, Coculture Technique, Porosity, Retroviridae Infections |
| الوصف: | Objectives: to investigate the factors influencing the transfer of porcine endogenous retroviruses (PERVs) across the membrane in a new bioartificial liver (BAL). Methods: A new BAL containing 2 circuits was constructed using plasma component separators with membrane pore sizes of 10 nm, 20 nm, 30 nm, and 35 nm, or a plasma filter with a membrane pore size of 500 nm. Cocultured cells of porcine hepatocytes and mesenchymal stem cells or single porcine hepatocytes were incubated in the bioreactors, and the BAL worked for 72 hours, with supernatant samples in internal and external circuits collected every 12 hours. PERV RNA, reverse transcriptase (RT) activity, and in vitro infectivity of the supernatant were detected. Results: With the plasma filters, the results of PERV detection were the same in both circuits. With plasma component separators, PERV RNA was found in the external circuits, but no positive RT activity or HEK293 cell infection was found. The time at which the PERV RNA was first detected varied with the pore size of membrane; the larger the membrane pore size was, the earlier the RNA was detected. The PERV RNA level in the external circuits was reduced significantly compared with that in the internal circuits at any detecting time. Conclusions: The plasma component separators with membrane pore size ≤35 nm could significantly reduce the passage of infectious PERVs. And the membrane pore size, the treatment duration, and the viral level in the internal circuit were potential factors influencing the transfer of PERVs across the membrane in a BAL. In addition, a low risk of PERV transmission from porcine hepatocytes to human cells was found. |
| تدمد: | 1724-6040 0391-3988 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::168e423518dd35d2b33fb2fa91af38e0 https://doi.org/10.5301/ijao.5000093 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi.dedup.....168e423518dd35d2b33fb2fa91af38e0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 17246040 03913988 |
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