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1、VeterinaryMicrobiology,7(1982)427--435427ElsevierScientificPublishingCompany,Amsterdam--PrintedinTheNetherlandsSTUDIESOFENTERICCORONAVIRUSESINAFELINECELLLINER.D.WOODSNationalAnimalDiseaseCenter,AgriculturalResearchService,ScienceandEducation,U.S.DepartmentofAgricultur
2、e,Ames,IA50010(U.S.A.)(Accepted5April1982)ABSTRACTWoods,R.D.,1982.Studiesofentericcoronavirusesinafelinecellline.Vet.Microbiol.,7:427--435.Developmentisreportedofafelinecelllinewhichcansupportthegrowthofcorona-virusesfromcanine(CCV),feline(FIPV)andporcine(TGEV)species
3、.Thecellculturehasbeenseriallytransferredover100timesandhasretaineditsinitialgrowthrequire-ments,proliferativecapacityandmorphologicfeatures.EachvirushadspecificgrowthcharacteristicsinthiscellculturealthoughallproducedasimilarCPEandplaquesunderagar.Croosneutralization
4、studiesdemonstratedatwo-wayrelationshipbetweenTGEVandCCVandbetweenTGEVandFIPV,whereasaone-wayrelationshipwasdemonstrat-edbetweenCCVandFIPV.INTRODUCTIONCoronaviruseshavebeenassociatedwithawidevarietyofdiseasesinani-malsandhumanbeings(Tyrrelletal.,1978).Investigationsof
5、thepatho-genesisandbasicpropertiesoftheseviruseshavebeenimpededduetothefastidiousnatureoftheirgrowthrequirements(RobbandBond,1980).Cultivationoftheentericstrainshasusuallybeenlimitedtotheirgrowthinthehostanimalorcellsandtissuesderivedfromthathost(McIntosh,1974).Thefel
6、ineinfectiousperitonitisvirus(FIPV)hasbeengrownatlowinfectivitytitersbyco-cultivationofinfectedperitonealmacrophageswithfelinecellcultures(Black,1980;Pedersenetal.,1981a),inintestinalandtrachealringcultures(HoshinoandScott,1978),infetalfelinelungcultures(O'Reillyetal.
7、,1979;Hitchcocketal.,1981)andinthebrainsofnewbornmice(Osterhausetal.,1978a),ratsandhamsters(Osterhausetal.,1978b).Thecaninecoronavirus(CCV)hasbeengrownincaninekidneycellcultures(Binnetal.,1980)andinahumanrectaladenocarcinomacellline(LaporteandBobulesco,1981).Theporcin
8、etransmissiblegastroenteritisvirus(TGEV)hasbeengrowninprimaryandsecondarypigkidney(McClurkin,1965),thyroid(Tyrrelletal.,1978