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Position: Home > Articles > Study on Acute and Subchronic Toxicity of Transgenic Tomato Anti-caries Vaccine Guizhou Agricultural Sciences 2011,39 (4) 154-157

转基因番茄防龋疫苗急性和亚慢性毒性试验

作  者:
白国辉;刘建国;田源;陈筑;韩琦;白朋元;顾瑜;管晓燕
单  位:
遵义医学院;贵阳市口腔医院
关键词:
转基因番茄;防龋疫苗;急性毒性;亚慢性毒性;龋病;变异链球菌
摘  要:
为评价表达致龋变异链球菌表面蛋白和霍乱毒素B亚单位的转基因番茄防龋疫苗的安全性,进行了大鼠经口灌胃染毒试验。结果表明,急性毒性试验中大鼠均未见毒性症状,急性毒性LD50>20 g/kg;亚慢性毒性试验中大鼠均未见毒性症状,在血液学和生化、脏器系数和组织病理学检查中,试验组大鼠与阴性对照组间均无显著差异(P>0.05)。说明,表达致龋变异链球菌表面蛋白和霍乱毒素B亚单位嵌合体蛋白的转基因番茄防龋疫苗对大鼠安全。
译  名:
Study on Acute and Subchronic Toxicity of Transgenic Tomato Anti-caries Vaccine
作  者:
BAI Guo-hui1,LIU Jian-guo1*,TIAN Yuan1,CHEN Zhu2,HAN Qi1,BAI Peng-yuan1,GU Yu1,GUAN Xiao-yan1(1.The Affiliated Stomatological Hospital,Zunyi Medical College,Zunyi,Guizhou 563000;2.Guiyang Stomatological Hospital,Guiyang,Guizhou 550000,China)
关键词:
transgenic tomato;anti-caries vaccine;acute toxicity;subchronic toxicity;dental caries;streptococcus mutans
摘  要:
The healthy rats were perfused with transgenic tomato juice containing PAcA/CTB protein and PAcP/CTB protein to evaluate the safety of transgenic tomato anti-caries vaccine with surface protein of streptococcus mutans and cholera toxin B subunit.The results showed that the toxic symptom was not found on tested rats in the acute and subchronic toxicity tests,the LD50 of acute toxicity was more than 20g/kg,there were no significant difference in hematological index,blood biochemistry index,organ coefficient and histopathology between the tested group and negative CK group,which indicates that transgenic tomato anti-caries vaccine with surface protein of streptococcus mutans and cholera toxin B subunit is safe to rats.

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