Investigation of the induction of antibodies against Crandell-Rees feline kidney cell lysates and feline renal cell lysates after parenteral administration of vaccines against feline viral rhinotracheitis, calicivirus, and panleukopenia in cats.
OBJECTIVE
To determine whether administration of Crandell-Rees feline kidney (CRFK) cell lysates or vaccines against feline viral rhinotracheitis, calicivirus, and panleukopenia (FVRCP vaccines) that likely contain CRFK cell proteins induces antibodies against CRFK cell or feline renal cell (FRC) lysates in cats.


METHODS
14 eight-week-old cats.


METHODS
Before and after the study, renal biopsy specimens were obtained from each cat for histologic evaluation. Each of 4 FVRCP vaccines was administered to 2 cats at weeks 0, 3, 6, and 50. Between weeks 0 and 50, another 3 pairs of cats received 11 CRFK cell lysate inoculations SC (10, 50, or 50 microg mixed with alum). Clinicopathologic evaluations and ELISAs to detect serum antibodies against CRFK cell or FRC lysates were performed at intervals.


RESULTS
Cats had no antibodies against CRFK cell or FRC lysates initially. All cats administered CRFK cell lysate had detectable antibodies against CRFK cell or FRC lysates on multiple occasions. Of 6 cats vaccinated parenterally, 5 had detectable antibodies against CRFK cell lysate at least once, but all 6 had detectable antibodies against FRC lysate on multiple occasions. Cats administered an intranasal-intraocular vaccine did not develop detectable antibodies against either lysate. Important clinicopathologic or histologic abnormalities were not detected during the study.


CONCLUSIONS
Parenteral administration of vaccines containing viruses likely grown on CRFK cells induced antibodies against CRFK cell and FRC lysates in cats. Hypersensitization with CRFK cell proteins did not result in renal disease in cats during the 56-week study.
Lappin
Michael R
MR
Department of Clinical Sciences, Colorado State University, Fort Collins, CO 80523, USA.
Jensen
Wayne A
WA
Jensen
Tracey D
TD
Basaraba
Randall J
RJ
Brown
Cathy A
CA
Radecki
Steven V
SV
Hawley
Jennifer R
JR
D000818:Animals; D000917:Antibody Formation / Q000276:immunology*; D001706:Biopsy / Q000662:veterinary; D017927:Calicivirus, Feline / Q000276:immunology*; D002415:Cats / Q000276:immunology*; D002457:Cell Extracts / Q000276:immunology*; D002460:Cell Line; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D028301:Feline Panleukopenia Virus / Q000276:immunology*; D006564:Herpesviridae / Q000276:immunology*; D007668:Kidney / Q000166:cytology / Q000473:pathology; D014765:Viral Vaccines / Q000008:administration & dosage*
D002457:Cell Extracts; D014765:Viral Vaccines