摘要
Inordertoinvestigatetheimmtmogenicityofthecontrolled-releasemicroencapsulatedhepatitisBvaccineinmice,polyethyleneglycol-poly-dl-lactide(PELA)microsphereswithentrappedHSsAgwerepreparedbydoubleemulsionW/O/Wbasedonsolventextractionmethods.BALB/cmicewereimmunizedwiththeencapsulatedvaccinebyoralfeedingorinjection.Bloodsampleswerecollectedat8^th,10^th,14^thand24^thweeks,respectively,andthelevelsofantibodyresponseweredetectedbyEI.ISA.Itwasfoundthatthescanningelectronmicroscopyshowedthepreparedmicrosphereshadsmoothandsphericalsurface,suitableforvaccinedelivery.Twogroupsofmiceorallyfedwiththeencapsulatedorconventionalrecombinantvaccines,respectively,theresereshowednoobviousdifferenceintheIgGlevels.At14^thweek,thegroupinjectedwithasingledoseofencapsulatedvaccinehadasimilarlevelofIgGresponsetothegroupinjectedwithtwodosesoftherecombinationvaccine.At24^thweek,theIgGlevelsofthegroupinjectedwithtwodosesofencapsulatedvaccinewerehigherthanthoseofthegroupinjectedwithtwodosesoftherecombinationvaccine.ItconcludesthatControlled-releasemicroencapsulatedhepatitisBvaccinepossessesthefeatureofslowlyreleasinginv/voandlongtimesimmtmogenicity.
出版日期
2003年01月11日（中国Betway体育网页登陆平台首次上网日期，不代表论文的发表时间）
