当前位置: 首页 > 文章 > 杆状病毒表达SARS冠状病毒纤突蛋白及其抗原性分析 中国预防兽医学报 2005,27 (6)
Position: Home > Articles > Antigenicity of recombinant spike protein of SARS-coronavirus expressed in baculovirus Chinese Journal of Preventive Veterinary Medicine 2005,27 (6)

杆状病毒表达SARS冠状病毒纤突蛋白及其抗原性分析

作  者:
王喜军;胡森;王清华;邓国华;王笑梅;吴东来;申之义;步志高
单  位:
内蒙古农业大学动物科学与医学学院;中国农业科学院哈尔滨兽医研究所兽医生物技术国家重点实验室
关键词:
SARS冠状病毒;纤突蛋白;重组杆状病毒;ELISA;IFA
摘  要:
本研究构建了SARS冠状病毒纤突蛋白(S)重组杆状病毒(rBac-SS)。SDS-PAGE及Western-Blot分析表明约190 Ku左右的重组SARS纤突蛋白(rSS)在rBac-SS感染sf9昆虫细胞获得表达,并具有特异免疫反应原性。以rBac-SS感染的昆虫细胞裂解物稀释后直接包被ELISA板,与Vero细胞培养的全病毒裂解物比较,检测SARS-CoV康复病人血清特异抗体,表现出同样的敏感性和特异性;rBac-SS感染的昆虫细胞用于间接免疫荧光,快速检测血清特异抗体反应,具有良好的敏感性和特异性。结果显示,杆状病毒表达的rSS有望替代SARS-CoV全病毒,作为安全、敏感和特异的重组诊断抗原,并为探索重组亚单位疫苗的可行性奠定基础。
译  名:
Antigenicity of recombinant spike protein of SARS-coronavirus expressed in baculovirus
作  者:
WANG Xi-jun~(1,2),HU Sen~1,WANG Qing-hua~(1,2),DENG Guo-hua~1,WANG Xiao-mei~1,WU Dong-lai~1,SHEN Zhi-yi~2,BU Zhi-gao~(1*)(1.Key Laboratory of National Veterinary Biotechnology,Harbin Veterinary Research Institute,Chinese Academy of Agriculture Science,Harbin 150001,China;2.College of Animal Science and Animal Medicine,Inner Mongolia Agriculture University,Hohhot 010018,China)
关键词:
SARS-CoV;spike protein;recombinant baculovirus;ELISA;IFA
摘  要:
A recombinant baculovirus(rBac-SS)expressing spike protein of severe acute respiratory syndrome coronavirus was constructed.The expression of full length recombinant spike protein(rSS) in insect cells was confirmed by SDS-PAGE and Western-blot(~190?Ku).When lysis supernatant of rBac-SS infected insect cells was directly used in ELISA as coating antigen for detecting specific antibodies in convalesce serum of SARS-CoV infected patient,the rSS showed the same sensitivity as the cell lysis of vero E6 infected with SARS-CoV.Insect cell infected with rBac-SS also showed highly sensitivity to detect specific serum antibody by indirect immunofluoresence assay(IFA).The results here indicated that baculovirus expressed rSS is promising to replace the whole SARS-CoV as antigen in ELISA and IFA for detecting the SARS-CoV specific antibodies and potential subunit vaccine candidate.

相似文章

计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊