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In vitro and in vivo evaluation of phosphonates labelled with therapeutic radionuclides

机译:治疗性放射性核素标记的膦酸酯的体外和体内评估

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摘要

HEDP (1hydroxyethylidene-diphosphonic acid) and TTHMP (triethylenetetramine-rnhexamethylene phosphonic acid), two phosphonates with biological activity and therapeutic potential,rnwere radiolabelled with therapeutic beta-emitter radionuclides 188Re and 177Lu. The radiolabelledrnphosphonates 188Re-HEDP, 188Re-TTHMP, 177Lu-HEDP and 177Lu-TTHMP were obtained with a highrnradiochemical purity (RCP>95%), through chelating process based on the ligand and radiometalrnproperties. The biodistribution studies, in rats, show different levels of bone uptake, from 75.14% forrn188Re-TTHMP to 88.08% for 188Re-HEDP and 94.10% for 177Lu-TTHMP.
机译:HEDP(1-羟乙叉基-二膦酸)和TTHMP(三亚乙基四胺-六亚甲基膦酸),两种具有生物活性和治疗潜力的膦酸酯,用治疗性β-发射核素188Re和177Lu进行放射性标记。通过基于配体和放射性金属性质的螯合过程,获得了放射性化学纯度高(RCP> 95%)的放射性标记的膦酸酯188Re-HEDP,188Re-TTHMP,177Lu-HEDP和177Lu-TTHMP。在大鼠中进行的生物分布研究显示不同水平的骨吸收,从188Re-HEDP的75.14%到188Re-HEDP的88.08%和177Lu-TTHMP的94.10%。

著录项

  • 来源
  • 会议地点 Vienna(AT)
  • 作者单位

    National Institute for Physics and Nuclear Engineering "Horia Hulubei",rnRadiopharmaceuticals and Labelled Compounds DepartmentrnBucharest, Romania;

    National Institute for Physics and Nuclear Engineering "Horia Hulubei",rnRadiopharmaceuticals and Labelled Compounds DepartmentrnBucharest, Romania;

    rnNational Centre for Scientific Research "Demokritos", Institute of Radioisotopes -rnRadiodiagnostic ProductsrnAthens, Greece;

    National Centre for Scientific Research "Demokritos", Institute of Radioisotopes -rnRadiodiagnostic ProductsrnAthens, Greece;

    rnInstitute of Oncology "Dr.Al.Trestioreanu", Nuclear Medicine DepartmentrnBucharest, Romania;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 放射医学;
  • 关键词

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