Porcine epidemic diarrhea virus uses cell-surface heparan sulfate as an attachment factor

Porcine epidemic diarrhea virus uses cell-surface heparan sulfate as an attachment factor It is well known that many viruses use heparan sulfate as the initial attachment factor. In the present study, we determined whether porcine epidemic diarrhea virus (PEDV), an emerging veterinary virus, infects Vero cells by attaching to heparan sulfate. Western blot analysis, real-time PCR, and plaque formation assay revealed that PEDV infection was inhibited when the virus was pretreated with heparin (an analogue of heparan sulfate). There was no inhibitory effect when the cells were pre-incubated with heparin. We next demonstrated that enzymatic removal of the highly sulfated domain of heparan sulfate by heparinase I treatment inhibited PEDV infection. We also confirmed that sodium chlorate, which interferes with heparan sulfate biosynthesis, also inhibited PEDV infection. Furthermore, we examined the effect of two heparin derivatives with different types of sulfation on PEDV infection. The data suggested de-N-sulfated heparin, but not N-acetyl-de-O-sulfated heparin, inhibits PEDV infection. In summary, our studies revealed that heparan sulfate acts as the attachment factor of PEDV in Vero cells. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Virology Springer Journals

Porcine epidemic diarrhea virus uses cell-surface heparan sulfate as an attachment factor

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Publisher
Springer Vienna
Copyright
Copyright © 2015 by Springer-Verlag Wien
Subject
Biomedicine; Virology; Medical Microbiology; Infectious Diseases
ISSN
0304-8608
eISSN
1432-8798
D.O.I.
10.1007/s00705-015-2408-0
Publisher site
See Article on Publisher Site

References

  • Molecular epidemiology of porcine epidemic diarrhea virus in China
    Chen, J; Wang, C; Shi, H; Qiu, H; Liu, S
  • Molecular characterization and phylogenetic analysis of porcine epidemic diarrhea virus (PEDV) samples from field cases in Fujian, China
    Chen, X; Yang, J; Yu, F; Ge, J; Lin, T
  • Sequence and phylogenetic analysis of nucleocapsid genes of porcine epidemic diarrhea virus (PEDV) strains in China
    Li, Z; Chen, F; Yuan, Y; Zeng, X; Wei, Z
  • Molecular characterization and phylogenetic analysis of porcine epidemic diarrhea virus (PEDV) field strains in south China
    Li, ZL; Zhu, L; Ma, JY; Zhou, QF; Song, YH
  • Heterogeneity in membrane protein genes of porcine epidemic diarrhea viruses isolated in China
    Fan, JH; Zuo, YZ; Li, JH; Pei, LH
  • Porcine epidemic diarrhoea virus: a comprehensive review of molecular epidemiology, diagnosis, and vaccines
    Song, D; Park, B

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