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Development of HBsAg-Binding Aptamers that bind HepG2.2.15 cells via HBV surface antigen 被引量:6

Development of HBsAg-Binding Aptamers that bind HepG2.2.15 cells via HBV surface antigen
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摘要 Hepatitis B virus surface antigen (HBsAg), a specific antigen on the membrane of Hepatitis B virus (HBV)-infected cells, provides a perfect target for therapeutic drugs. The development of reagents with high affinity and specificity to the HBsAg is of great significance to the early-stage diagnosis and treatment of HBV infection. Herein, we report the selection of RNA aptamers that can specifically bind to HBsAg protein and HBsAg-positive hepatocytes. One high affinity aptamer, HBs-A22, was isolated from an initial 115 met library of -1.1 ×10^15 random-sequence RNA molecules using the SELEX procedure. The selected aptamer HBs-A22 bound specifically to hepatoma cell line HepG2.2.15 that expresses HBsAg but did not bind to HBsAg-devoid HepG2 cells. This is the first reported RNA aptamer which could bind to a HBV specific antigen. This newly isolated aptamer could be modified to deliver imaging, diagnostic, and therapeutic agents targeted at HBV-infected cells. 肝炎 B 病毒表面抗原(HBsAg ) ,肝炎 B 病毒(HBV ) 的膜上的特定的抗原感染了房间,为治疗学的药提供一个完美的目标。有与 HBsAg 的高亲密关系和特性的试剂的发展具有到 HBV 感染的早阶段的诊断和治疗的大意义。此处,我们报导能明确地绑在 HBsAg 蛋白质和 HBsAg 积极的 hepatocytes 的 RNA aptamers 的选择。一高亲密关系 aptamer, HBs-A22,被孤立从一起始锝 ?.1 脳 1 的 115 mer 图书馆用 SELEX 过程的 015 个随机顺序的 RNA 分子。选择 aptamer HBs-A22 明确地跳了到表示 HBsAg 的 hepatoma 房间线 HepG2.2.15 但是没绑在 HBsAg 缺乏的 HepG2 房间。这是能绑在 HBV 特定的抗原的首先报导的 RNA aptamer。这最新孤立的 aptamer 能被修改交付成像,目标为感染 HBV 的房间的诊断、治疗学的代理人。关键词 Aptamer - 由指数的丰富(SELEX ) 的 ligands 的系统的进化 - 肝炎 B 病毒(HBV )- HBsAg - Hepatocytes 基础项目:中国(2008ZX10002-011 ) 的国家大研究节目;中国(30700701 ) 的国家自然科学基础;国家高技术研究和中国(2006AA02Z128 ) 的发展节目。
出处 《Virologica Sinica》 SCIE CAS CSCD 2010年第1期27-35,共9页 中国病毒学(英文版)
基金 National Mega Research Program of China(2008ZX10002-011) National Natural Science Foundation of China(30700701) National High Tech-nology Research and Development program of China(2006AA02Z128)
关键词 Aptamer Systematic evolution of ligands by exponential enrichment (SELEX) Hepatitis B virus (HBV) HBSAG HEPATOCYTES 乙肝病毒表面抗原 乙肝表面抗原 阳性细胞 乙型肝炎病毒表面抗原 适配 特异性抗原 HepG2细胞 HBsAg
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同被引文献37

  • 1詹林盛,卓海龙,王会中,彭剑淳,王全立.丙型肝炎病毒NS3螺旋酶寡核苷酸适配子的筛选与鉴定[J].生物化学与生物物理进展,2005,32(3):245-250. 被引量:12
  • 2Yan-Chang Lei,You-Hua Hao,Zheng-Mao Zhang,Yong-Jun Tian,Bao-Ju Wang,Yan Yang,Xi-Ping Zhao,Meng-Ji Lu,Fei-Li Gong,Dong-Liang Yang.Inhibition of hepatitis B virus replication by APOBEC3G in vitro and in vivo[J].World Journal of Gastroenterology,2006,12(28):4492-4497. 被引量:9
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