The hemagglutinin of canine distemper virus determines tropism and cytopathogenicity

V. Von Messling, G. Zimmer, G. Herrler, L. Haas, Roberto Cattaneo

Research output: Contribution to journalArticle

122 Citations (Scopus)

Abstract

Canine distemper virus (CDV) and measles virus (MV) cause severe illnesses in their respective hosts. The viruses display a characteristic cytopathic effect by forming syncytia in susceptible cells. For CDV, the proficiency of syncytium formation varies among different strains and correlates with the degree of viral attenuation. In this study, we examined the determinants for the differential fusogenicity of the wild-type CDV isolate 5804Han89 (CDV5804), the small- and large-plaque-forming variants of the CDV vaccine strain Onderstepoort (CDVOS and CDVOL, respectively), and the MV vaccine strain Edmonston B (MVEdm). The cotransfection of different combinations of fusion (F) and hemagglutinin (H) genes in Vero cells indicated that the H protein is the main determinant of fusion efficiency. To verify the significance of this observation in the viral context, a reverse genetic system to generate recombinant CDVs was established. This system is based on a plasmid containing the full-length antigenomic sequence of CDVOS. The coding regions of the H proteins of all CDV strains and MVEdm, were introduced into the CDV and MV genetic backgrounds, and recombinant viruses rCDV-H5804, rCDV-HOL, rCDV-HEdm, rMV-H5804, rMV-HOL, and rMV-HOS were recovered. Thus, the H proteins of the two morbilliviruses are interchangeable and fully functional in a heterologous complex. This is in contrast with the glycoproteins of other members of the family Paramyxoviridae, which do not function efficiently with heterologous partners. The fusogenicity, growth characteristics, and tropism of the recombinant viruses were examined and compared with those of the parental strains. All these characteristics were found to be predominantly mediated by the H protein regardless of the viral backbone used.

Original languageEnglish (US)
Pages (from-to)6418-6427
Number of pages10
JournalJournal of Virology
Volume75
Issue number14
DOIs
StatePublished - 2001

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Canine Distemper Virus
tropisms
Canine distemper virus
Tropism
cytopathogenicity
Hemagglutinins
hemagglutinins
Measles virus
giant cells
Giant Cells
vaccines
Viruses
viruses
Paramyxoviridae
Morbillivirus
Vaccines
Measles Vaccine
Reverse Genetics
Vero Cells
proteins

ASJC Scopus subject areas

  • Immunology

Cite this

The hemagglutinin of canine distemper virus determines tropism and cytopathogenicity. / Von Messling, V.; Zimmer, G.; Herrler, G.; Haas, L.; Cattaneo, Roberto.

In: Journal of Virology, Vol. 75, No. 14, 2001, p. 6418-6427.

Research output: Contribution to journalArticle

Von Messling, V. ; Zimmer, G. ; Herrler, G. ; Haas, L. ; Cattaneo, Roberto. / The hemagglutinin of canine distemper virus determines tropism and cytopathogenicity. In: Journal of Virology. 2001 ; Vol. 75, No. 14. pp. 6418-6427.
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