Molecular Characterization of the Porcine Endogenous Retrovirus Subclass A and B Envelope Gene From Pigs

2006 ◽  
Vol 38 (9) ◽  
pp. 3066-3069 ◽  
Author(s):  
D. Lee ◽  
J. Lee ◽  
S.J. Uhm ◽  
Y.S. Lee ◽  
M.J. Park ◽  
...  
1987 ◽  
Vol 61 (2) ◽  
pp. 308-314 ◽  
Author(s):  
S Dandekar ◽  
P Rossitto ◽  
S Pickett ◽  
G Mockli ◽  
H Bradshaw ◽  
...  

Virus Genes ◽  
2009 ◽  
Vol 39 (2) ◽  
pp. 210-216 ◽  
Author(s):  
Na Young Kim ◽  
Donghee Lee ◽  
Jungeun Lee ◽  
Eung Woo Park ◽  
Woon-Won Jung ◽  
...  

Virology ◽  
2008 ◽  
Vol 376 (1) ◽  
pp. 199-204 ◽  
Author(s):  
Leonid Borysenko ◽  
Volodymir Stepanets ◽  
Alla V. Rynditch

Virology ◽  
2003 ◽  
Vol 307 (2) ◽  
pp. 341-357 ◽  
Author(s):  
Orna Avidan ◽  
Shoshana Loya ◽  
Ralf R Tönjes ◽  
Ziv Sevilya ◽  
Amnon Hizi

2017 ◽  
Vol 24 (4) ◽  
pp. e12311 ◽  
Author(s):  
Nizar I. Mourad ◽  
Claire Crossan ◽  
Victoria Cruikshank ◽  
Linda Scobie ◽  
Pierre Gianello

2006 ◽  
Vol 80 (20) ◽  
pp. 10258-10261 ◽  
Author(s):  
Thomas Preuss ◽  
Nicole Fischer ◽  
Klaus Boller ◽  
Ralf R. Tönjes

ABSTRACT Xenotransplantation of pig organs is complicated by the existence of polytropic replication-competent porcine endogenous retroviruses (PERV) capable of infecting human cells. The potential for recombination between ecotropic PERV-C and human-tropic PERV-A and PERV-B adds another level of infectious risk. Proviral PERV-C were characterized in MAX-T cells derived from d/d haplotype miniature swine. Three proviruses were cloned from a genomic library. Clone PERV-C(1312) generated infectious particles after transfection into porcine ST-IOWA cells. Electron microscopy revealed the same morphologies of virions in MAX-T cells and in ST-IOWA cells infected with cell-free PERV-C(1312) particles, indicating that MAX-T cells harbor one functional PERV-C provirus.


2002 ◽  
Vol 76 (22) ◽  
pp. 11738-11743 ◽  
Author(s):  
Nikolai Klymiuk ◽  
Mathias Müller ◽  
Gottfried Brem ◽  
Bernhard Aigner

ABSTRACT Endogenous retroviral sequences in the pig genome (PERV) represent a potential infectious risk in xenotransplantation. All known infectious PERV have been asssigned to the PERV γ1 family, consisting of the subfamilies A, B, and C. The aim of the study was the concise examination of PERV γ by the analysis of the retroviral pro-pol sequences. The analysis of 52 pro-pol clones amplified in this study revealed eight PERV γ families. In addition to four already-described families (γ1, γ4, γ5, γ6), four novel families (γ7, γ8, γ9, γ10) were identified. Quantitative analysis of the novel PERV γ sequences in selected breeds revealed variations in the endogenous retroviral load. Open reading frames (ORF) in the amplified proviral fragment were only found for PERV γ1. In addition, novel ORF-containing PERV γ1 clones consisting of hybrid sequences were revealed. Sequence comparison from published full-length PERV γ1 clones of the PERV subfamilies A, B, and C resulted in a lack of strict correlation of the classification of pro-pol and env. The results indicated the occurrence of causative recombination events between retroviral genomes. Thus, our study on PERV γ provides new data for the evaluation and selection of pigs intended to be used in xenotransplantation.


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