Abstract
Two groups of 3-month old calves were immunized intramuscularly with attenuated bovine rotavirus and boosted 21 and 42 days later. The first group of three calves were vaccinated with live virus emulsified with incomplete Freund's adjuvant (IFA) and the second group was immunized with live virus suspended in phosphate buffered saline (PBS). Three other calves, serving as controls, were inoculated with PBS emulsified with IFA. The specific cell-mediated and antibody responses of the animals were studied. Preliminary analysis of in vitro peripheral blood lymphocyte transformation to bovine rotavirus determined optimal conditions as: 96 h culture period, 5 × 105 cells per culture in RPMI 1640 medium containing 10% heat-inactivated bovine fetal serum and the use of inactivated virus in the cell culture at a concentration of 5 × 106 median tissue culture infective dose before inactivation. Specific blastic stimulation was observed on calves immunized with the rotavirus emulsified with IFA after the second and third vaccine inoculation with stimulation index values varying from 2.00 to 5.73. Serum neutralizing antibody titers of 125,600 were also induced in the same calves. Calves immunized with rotavirus-PBS suspension developed a mean antibody titer of 11,600, but showed no specific lymphocyte stimulation. No increase in specific immune responses was detected in the control animals.
Keywords: Bovine rotavirus, lymphocyte stimulation test, cellular immunity, neutralizing antibodies, vaccination, adjuvant
Résumé
Deux groupes de veaux âgés de 3 mois furent vaccinés par la voie intramusculaire en utilisant une souche vivante atténuée de rotavirus bovin, avec des doses de rappel aux jours 21 et 42 après la première immunisation. Un premier groupe de trois veaux fut immunisé avec le virus incorporé dans une émulsion eau dans l'huile, préparée avec l'adjuvant incomplet de Freund (AIF), alors que les animaux du deuxième groupe furent vaccinés avec le virus mélangé avec un tampon phosphate salin (PBS). Trois veaux témoins furent inoculés avec le PBS incorporé dans l'AIF. Les cinétiques des réponses spécifiques de l'immunité à médiation cellulaire et des anticorps des animaux furent étudiées. Une étude préliminaire sur la stimulation in vitro des lymphocytes du sang par le rotavirus bovin avait permis d'établir les conditions optimales pour la réalisation du test: une incubation de 96 h des cultures, une quantité de 5 × 105 cellules par culture en utilisant le milieu RPMI 1640, additionné de 10% de sérum foetal bovin et l'utilisation de virus inactivé à une concentration de 5 × 106 particules virales, produisant un effet cytopathique sur 50% des cultures cellulaires infectées avant l'inactivation. Une stimulation lymphoblastique spécifique fut observée chez les veaux immunisés avec le virus et l'AIF après les deuxième et troisième doses vaccinales, les indices de stimulation variant de 2,00 à 5,73. Ces derniers veaux ont aussi montré des titres sériques en anticorps neutralisants de 125.600. Les veaux vaccinés avec le virus et le PBS ont aussi développé une réponse en anticorps avec un titre moyen de 11.600, sans manifester toutefois une stimulation lymphoblastique spécifique. Les veaux témoins n'ont démontré aucune augmentation des réponses immunitaires spécifiques.
Mots-clé: Rotavirus bovin, test de stimulation lymphoblastique, immunité cellulaire, anticorps neutralisants, vaccination, adjuvant
References
- 1.Estes M.K., Palmer E.L., Obijeski J.F. Rotaviruses, a review. In: Cooper M., Hofschneider P.H., Koprowski H., Melchers F., Rott R., Schweiger H.G., Vogt P.K, Zinkernagel R, editors. 2nd edn. Vol. 105. Springer; Berlin: 1983. pp. 123–184. (Curr. Top. Microbiol. Immun.). [DOI] [PubMed] [Google Scholar]
- 2.Flewett T.H., Woode G.N. The rotaviruses. Arch. Virol. 1978;57:1–23. doi: 10.1007/BF01315633. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 3.McNulty M.S. Rotaviruses. J. gen. Virol. 1978;40:1–18. doi: 10.1099/0022-1317-40-1-1. [DOI] [PubMed] [Google Scholar]
- 4.Bachmann P.A., Heiss R.G., Dirksen G., Schmid G. Kinetics of the local immune response to rotavirus infection in calves. 4th Int. Symp. Neonatal Diarrhea, Veterinary Infectious Disease Organization; Saskatoon; 1983. pp. 435–447. [Google Scholar]
- 5.Mebus C.A., White R.G., Bass E.P., Twiehaus M.J. Immunity to neonatal calf diarrhea virus. J. Am. vet. med. Ass. 1973;163:880–883. [Google Scholar]
- 6.Mebus C.A., Torres-Medina A., Twiehaus M.J., Bass E.P. Immune response to orally administered calf reovirus-like agent and coronavirus vaccine. In: Karger S., editor. 2nd edn. Vol. 33. International Association of Biological Standardization; Basel: 1976. pp. 396–403. (Develop. biol. Stand.). [PubMed] [Google Scholar]
- 7.Van Zaane D., Ijzerman J., De Leew P.W. Intestinal antibody response after vaccination and infection with rotavirus of calves fed colostrum with or without rotavirus antibody. Vet. Immun. Immunopath. 1986;1:45–63. doi: 10.1016/0165-2427(86)90087-5. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 8.Vonderfecht S.L., Osburn B.I. Immunity to rotavirus in conventional neonatal calves. J. clin. Microbiol. 1982;16:935–942. doi: 10.1128/jcm.16.5.935-942.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 9.Castrucci G., Frigeri F., Ferrari M., Cilli V., Caleffi F., Aldrovandi V., Nigrelli A. The efficacy of colostrum from cows vaccinated with rotavirus in protecting calves to experimentally induced rotavirus infection. Comp. Immun. Microbiol. infect. Dis. 1984;7:11–18. doi: 10.1016/0147-9571(84)90011-0. [DOI] [PubMed] [Google Scholar]
- 10.Saif L.J., Redman D.S., Smith K.L., Theil K.W. Passive immunity to bovine rotavirus in newborn calves fed colostrum supplements from immunized or nonimmunized cows. Infect. Immun. 1983;41:1118–1131. doi: 10.1128/iai.41.3.1118-1131.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 11.Snodgrass D.R., Fahey K.J., Wells P.W., Campbell I., Whitelaw A. Passive immunity in calf rotavirus infections maternal vaccination increases and prolongs immunoglobulin G1 antibody secretion in milk. Infect. Immun. 1980;28:344–349. doi: 10.1128/iai.28.2.344-349.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 12.Van Opdenbosch E., Wellemans G., Strobbe R. Evolution des anitcorps anti rota dans le lait de vaches traitées en fin de gestation soit par le vaccin anti rota complet, soit par l'adjuvant seul. Comp. Immun. Microbiol. infect. Dis. 1981;4:293–300. doi: 10.1016/0147-9571(81)90015-1. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 13.Lawman M.J. Cell-mediated immunity: induction and expression of T-cell function. J. Am. vet. med. Ass. 1982;181:1022–1029. [PubMed] [Google Scholar]
- 14.Onions D.E. The immune response to virus infections. Vet. Immun. Immunopath. 1983;4:237–277. doi: 10.1016/0165-2427(83)90059-4. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 15.Rouse B.T., Horohov D.W. Cytotoxic T lymphocytes in Herpesvirus infections. Vet. Immun. Immunopath. 1984;6:35–66. doi: 10.1016/0165-2427(84)90048-5. [DOI] [PubMed] [Google Scholar]
- 16.Bellanti J.A., Peters S.M., Rola-Pleszcynski M. Assays of cell-mediated immunity to viruses. In: Rose N.R., Friedman H., editors. Manual of Clinical Immunology. 2nd edn. American Society for Microbiology; Washington: 1980. pp. 316–326. [Google Scholar]
- 17.Kristensen F., Kristensen B., Lazary S. The lymphocyte stimulation test in veterinary immunology. Vet. Immun. Immunopath. 1982;3:203–277. doi: 10.1016/0165-2427(82)90036-8. [DOI] [PubMed] [Google Scholar]
- 18.Archambault D., Roy R.S., Dea S., Elazhary M.A.S.Y. Comparative study of bovine rotavirus isolated by plaque assay. Can. J. comp. Med. 1984;48:286–289. [PMC free article] [PubMed] [Google Scholar]
- 19.Mebus C.A., Kono M., Underdahl N.R., Twiehaus M.J. Cell culture propagation of neonatal calf diarrhea (scours) virus. Can. vet. J. 1971;12:69–72. [PMC free article] [PubMed] [Google Scholar]
- 20.Fauvel M., Spence L.S., Babiuk L.A., Petro R., Bloch S. Hemagglutination and hemagglutination-inhibition studies with a strain of Nebraska calf diarrhea virus (bovine rotavirus) Intervirology. 1978;9:95–105. doi: 10.1159/000148927. [DOI] [PubMed] [Google Scholar]
- 21.Rodger S.M., Schnagl R.D., Holmes I.H. Further biochemical characterization including detection of surface glycoproteins of human, calf and simian rotavirus. J. Virol. 1977;24:91–98. doi: 10.1128/jvi.24.1.91-98.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 22.Dea S., Roy R.S., Bégin M.E. Counterimmunoelectroosmophoresis for detection of neonatal calf diarrhea coronavirus: methodology and comparison with electron microscopy. J. clin. Microbiol. 1979;10:240–244. doi: 10.1128/jcm.10.2.240-244.1979. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 23.Reed L.J., Muench H. A simple method of estimation fifty percent end points. Am. J. Hyg. 1938;27:493–496. [Google Scholar]
- 24.Bahnemann H.G. Binary ethylenimine as an inactivate for foot-and-mouth disease virus and its application for vaccine production. Arch. Virol. 1975;47:47–56. doi: 10.1007/BF01315592. [DOI] [PubMed] [Google Scholar]
- 25.Rojas-Corona R.R., Skarnes R., Tangkuma S., Fire J. A comparison with other assay methods. 6th edn. Vol. 132. 1969. The limulus coagulation test for endotoxin; pp. 599–601. (Proc. Soc. exp. Biol. Med.). [DOI] [PubMed] [Google Scholar]
- 26.Nozawa C.M., Fonseca M.E. An attempt to cultivate human rotavirus in human leukocytes culture. Rev. Int. Med. trop. Sao Paulo. 1984;26:228–229. doi: 10.1590/s0036-46651984000400008. [DOI] [PubMed] [Google Scholar]
- 27.Barta O., Oyekan P.P. Lymphocyte transformation test in veterinary clinical immunology. Comp. Immun. Microbial. infect. Dis. 1981;4:209–221. doi: 10.1016/0147-9571(81)90006-0. [DOI] [PubMed] [Google Scholar]
- 28.Brochier B., Pastoret P.P., Thiry E., Roupain J., Michaux C., Derboven G., Barta O. Le test de transformation lymphoblastique pour l'étude de l'immunocompétence du bétail. Ann. Méd. Vét. 1983;127:91–96. [Google Scholar]
- 29.Woodard L.F., Renshaw H.W., Burger D. Cell-mediated immunity in neonatal calves: delayed-type hypersensitivity and lymphocyte blastogenesis following immunization with a mycobacterial immunopotentiating glycolipid and tuberculoproteins of Mycobacterium bovis. Am. J. vet. Res. 1978;39:579–584. [PubMed] [Google Scholar]
- 30.Warren H.S., Vogel F.R., Chedid L.A. Current status of immunological adjuvants. In: Paul W.E., Fathman C.G., Metzger H., editors. 6th edn. Vol. 4. 1986. pp. 369–388. (Ann. Rev. Immun.). Palo Alto, California. [DOI] [PubMed] [Google Scholar]
- 31.Reipenhoff-Talty, Suzuki H., Ogra P.L. Characteristics of the cell-mediated immune response to rotavirus in suckling mice. In: Karger S., editor. 6th edn. Vol. 53. International Association of Biological Standardization; Basel: 1983. pp. 263–268. (Develop. biol. Standard.). [PubMed] [Google Scholar]
- 32.Sheridan J.F., Eydelloth R.J., Vonderfecht S.L., Aurelian L. 1983. Virus-specific immunity in neonatal and adult mouse rotavirus infection. Infect. Immun. 1983;39:917–927. doi: 10.1128/iai.39.2.917-927.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
- 33.Kohl S., Harmon M.W., Tang J.P. Cytokine-stimulated human natural killer cytotoxicity: response to rotavirus-infected cells. Pediat. Res. 1983;17:868–872. doi: 10.1203/00006450-198311000-00006. [DOI] [PubMed] [Google Scholar]
