Abstract：
:A vaccine based upon a recombinant plant virus (CPMV-PARVO1), displaying a peptide derived from the VP2 capsid protein of canine parvovirus (CPV), has previously been described. To date, studies with the vaccine have utilized viable plant chimaeric particles (CVPs). In this study, CPMV-PARVO1 was inactivated by UV treatment to remove the possibility of replication of the recombinant plant virus in a plant host after manufacture of the vaccine. We show that the inactivated CVP is able to protect dogs from a lethal challenge with CPV following parenteral immunization with the vaccine. Dogs immunized with the inactivated CPMV-PARVO1 in adjuvant displayed no clinical signs of disease and shedding of CPV in faeces was limited following CPV challenge. All immunized dogs elicited high titres of peptide-specific antibody, which neutralized CPV in vitro. Levels of protection, virus shedding and VP2-specific antibody were comparable to those seen in dogs immunized with the same VP2- peptide coupled to keyhole limpet hemocyanin (KLH). Since plant virus-derived vaccines have the potential for cost-effective manufacture and are not known to replicate in mammalian cells, they represent a viable alternative to current replicating vaccine vectors for development of both human and veterinary vaccines.
journal_name
Vaccinejournal_title
Vaccineauthors
Langeveld JP,Brennan FR,Martínez-Torrecuadrada JL,Jones TD,Boshuizen RS,Vela C,Casal JI,Kamstrup S,Dalsgaard K,Meloen RH,Bendig MM,Hamilton WDdoi
10.1016/s0264-410x(01)00083-4subject
Has Abstractpub_date
2001-06-14 00:00:00pages
3661-70issue
27eissn
0264-410Xissn
1873-2518pii
S0264-410X(01)00083-4journal_volume
19pub_type
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