Immunogenic properties of rabbit haemorrhagic disease virus structural protein VP60 expressed by a recombinant baculovirus: an efficient vaccine.
We have constructed a recombinant baculovirus containing the gene encoding the structural protein VP60 from the Spanish field isolate AST/89 of rabbit haemorrhagic disease virus (RHDV). Infection of cultured Spodoptera frugiperda Sf9 cells with this recombinant virus resulted in the production of high yields of VP60 protein which did not seem to assemble to form virus like particles, but was antigenically similar to the corresponding viral protein obtained from purified virions. A VP60-dose study showed that the recombinant protein was able to elicit a protective response in rabbits against a nasal challenge with 100 LD50 of RHDV. The effective dose able to protect 50% of the animals in the absence of adjuvant was found to be 10-25 micrograms of recombinant VP60.
Marín
M S
MS
NERC Institute of Virology and Environmental Microbiology, Oxford, UK.
Martín Alonso
J M
JM
Pérez Ordoyo García
L I
LI
Boga
J A
JA
Argüello-Villares
J L
JL
Casais
R
R
Venugopal
K
K
Jiang
W
W
Gould
E A
EA
Parra
F
F
D000818:Animals; D017250:Caliciviridae Infections / Q000276:immunology / Q000517:prevention & control / Q000662:veterinary*; D002460:Cell Line; D015967:Gene Expression Regulation, Viral; D017929:Hemorrhagic Disease Virus, Rabbit / Q000235:genetics / Q000276:immunology* / Q000502:physiology; D017924:Nucleopolyhedroviruses / Q000235:genetics; D011817:Rabbits; D011993:Recombinant Fusion Proteins / Q000235:genetics / Q000276:immunology; D018411:Spodoptera / Q000166:cytology; D014611:Vaccination; D015678:Viral Structural Proteins / Q000235:genetics / Q000276:immunology*; D014765:Viral Vaccines / Q000235:genetics / Q000276:immunology*; D014771:Virion / Q000502:physiology; D019065:Virus Assembly
D011993:Recombinant Fusion Proteins; D015678:Viral Structural Proteins; D014765:Viral Vaccines; C081149:viral protein 60, rabbit hemorrhagic disease virus