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乏氧显像剂99Tcm-HL91衍生物的制备及其活性评价

Preparation and Evaluation of 99Tcm-HL91 Derivatives for Tumor Hypoxia Imaging

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【作者】 范文博李黎张剑英韩梅朱霖

【Author】 FAN Wen-bo 1,2,LI Li 1,ZHANG Jian-ying 1,HAN Mei 1,ZHU Lin 1,* 1.Key Laboratory of Radiophamaceuticals(Ministry of Education),College of Chemistry,Beijing Normal University,Beijing 100875,China;2.Nuclear Medicine Department and MINNAN PET Center of Xiamen First Hospital of FuJian Medical University,Xiamen 361003,China

【机构】 放射性药物教育部重点实验室北京师范大学化学学院福建医科大学附属厦门第一医院核医学科,闽南PET中心

【摘要】 为寻找性能优良的乏氧显像剂,设计合成了2种HL91衍生物4,9-二氮-3,10-二甲基十二-烷2,11-二酮肟(TMBAO)和4,9-二氮-3,10-二氧基十二烷-2,11-二酮肟(H2Pab),并进行99Tcm标记。与已知乏氧显像剂99Tcm-HL91进行比较,并对新标记物的体内外活性进行了评价。乏氧细胞实验结果表明:与99Tcm-HL91相比,99Tcm-TMBAO和99Tcm-H2Pab具有一定的乏氧选择性;荷瘤小鼠体内生物分布数据显示,尽管两种新的99Tcm标记物在肝脏的摄取比99Tcm-HL91低,但其乏氧选择性也同时显著降低。

【Abstract】 In order to find the optimum hypoxia imaging agent,two derivatives of HL91-4,9-diaza-3,10-dimethyl-dodecane-2,11-dione dioxime(TMBAO) and N,N ’-bis(2-hydroxyimino propionyl)-1,4-diaminobutane(H 2Pab)—were synthesized and labeled with 99Tc m.Evaluation of these complexes as tumor hypoxia markers were performed both in vitro and in vivo compared with 99Tc m-HL91—a putative hypoxic tracer.The tumor cell experiment and the biodistribution in mice bearing EMT-6 tumor show that the two derivatives— 99Tc m-TMBAO and 99Tc m-H 2Pab have less hypoxic selectivity than 99Tc m-HL91 in despite of their lower liver uptake.

【关键词】 99Tcm-HL9199Tcm-TMBAO99Tcm-H2Pab乏氧生物分布
【Key words】 99Tc m-HL9199Tc m-TMBAO99Tc m-H 2Pabhypoxiabiodistribution
【基金】 高等学校博士学科点专项科研基金(20040027011)
  • 【文献出处】 核化学与放射化学 ,Journal of Nuclear and Radiochemistry , 编辑部邮箱 ,2009年01期
  • 【分类号】R817
  • 【下载频次】64
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