Antiviral activity of bovine collectins against rotaviruses
PC Reading, U Holmskov and EM Anders Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria, Australia. The antiviral activity against rotaviruses of three bovine collectins, conglutinin, collectin-43 (CL-43) and bovine SP-D, was examined. As shown by ELISA and Weste...
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Published in | Journal of general virology Vol. 79; no. 9; pp. 2255 - 2263 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
England
Soc General Microbiol
01.09.1998
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Subjects | |
Online Access | Get full text |
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Summary: | PC Reading, U Holmskov and EM Anders
Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria, Australia.
The antiviral activity against rotaviruses of three bovine collectins,
conglutinin, collectin-43 (CL-43) and bovine SP-D, was examined. As shown
by ELISA and Western blot, all three collectins bound to the Nebraska calf
diarrhoea virus bovine strain of rotavirus, and specifically to the VP7
glycoprotein. Inhibition by mannose or EDTA confirmed that binding was
mediated through the lectin domains of the collectins. Binding resulted in
haemagglutination inhibition and neutralization of rotavirus infectivity,
CL-43 displaying the highest activity in both types of assay. In contrast,
conglutinin was the most potent of the three collectins against influenza
virus A/HKx31. Neutralization of rotaviruses by the lectins was dependent
on glycosylation of VP7. Furthermore, rotaviruses adapted to growth in
Madin-Darby bovine kidney cells, and thus bearing carbohydrate of bovine
origin, remained sensitive to neutralization, although slightly less so
than virus stocks propagated in the monkey kidney cell line MA104. These
findings provide the first description of antiviral activity of collectins
against a non-enveloped virus and may indicate a potential role for
collectins in host defence against bovine rotavirus infection. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 ObjectType-Article-1 ObjectType-Feature-2 |
ISSN: | 0022-1317 1465-2099 |
DOI: | 10.1099/0022-1317-79-9-2255 |