摘要
目的探讨单纯疱疹病毒2型DNA疫苗的抗病毒感染效应。方法重组DNA疫苗pc-gD免疫雌性豚鼠,采用血清中和实验检测抗体,单纯疱疹病毒2型(HSV-2)sav株接种豚鼠,观察DNA疫苗保护动物抵抗HSV-2病毒感染的能力。结果pc-gD免疫豚鼠产生的中和抗体效价远远高于对照组和生理盐水组,感染病毒后,表现出初发感染推迟,复发感染的严重程度下降。结论DNA疫苗能有效地保护动物免受HSV-2病毒的攻击,延缓初发感染,减少复发感染。
Objective To observe the prophylactic effects of a HSV-2gD2DNA vaccine in guinea pigs challenged with HSV-2strains.Methods Female guinea pigs were divided into3groups with10each,which was immunized intramuscularly with100μg of pc-gD plasmids(recombinant HSV-2DNA vac-cine),or with pcDNA3blank plasmids,with normal saline as control,respectively.Two booster injections were given on day7and day21.Sera were collected for virus neutralization test on day0,day28,and day56.The animals were challenged with HSV-2strain sav intravaginally,and lesions induced on the external genital skin were scored between day1and day21after challenge.Results The titer of neutralizing anti-body to HSV-2was much higher in the sera from animals immunized by pc-gD plasmids than that from ani-mals immunized by pcDNA3blank plasmids or normal saline.Furthermore,the lesion scores on external genital skin were significantly decreased in pc-gD group than those in other two groups with either primary or recurrent infections.Conclusion The constructed gD2vaccine can efficiently protect guinea pigs from genital infection and reduce recurrent infection induced by latent herpes simplex virus.
出处
《中华皮肤科杂志》
CAS
CSCD
北大核心
2003年第12期708-710,共3页
Chinese Journal of Dermatology
基金
国家自然科学基金(30271192)
广东省科委重大攻关课题(010795)
