Home CONTACT Acta Virologica 2009 Acta Virologica Vol.53, No.3, p.169-174, 2009

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Founded: 1957
ISSN 0001-723X
E-ISSN 1336-2305

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Acta Virologica Vol.53, No.3, p.169-174, 2009

Title: Studies on long-term infection of human cells with Porcine endogenous retrovirus
Author: P. Yu, P. Zhang, L. Zhang, S. F. Li, J. Q. Cheng, Y. R. Lu, Y. P. Li, H. Bu

Abstract: A major concern in pig-to-human xenotransplantations is the potential risk of transmission of Porcine endogenous retroviruses (PERVs) integrated in the pig genome. Our previous work has shown that PERV provirus genes and gag protein can be detected in human embryonic kidney HEK-293 cells during a long-term infection with PERV (Yu et al., Transplant. Proc. 37, 496–499, 2005). In this study, we continued studying the long-term (>6 months) PERV infection of HEK-293 cells. The results showed no significant differences in morphology, growth, apoptosis, and [3H]-thymidine incorporation between PERV-infected and uninfected cells. The PERV LTR sequence showed only an insignifcant mutation after the long-term infection. PERV infection had no effect on the transcription of genes of Human endogenous retrovirus (HERV) naturally occurring in HEK-293 cells. Summing up, this study indicated that a long-term PERV infection of HEK-293 cells in vitro does not result in any significant changes in host cells as well as in PERV LTR sequence.

Keywords: HEK-293 cells; Human endogenous retrovirus K; Porcine endogenous retrovirus
Year: 2009, Volume: 53, Issue: 3 Page From: 169, Page To: 174
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