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首页> 外文期刊>Journal of Medicinal Chemistry >Novel Matrix Metalloproteinase 12 Selective Radiotracers for Vascular Molecular Imaging
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Novel Matrix Metalloproteinase 12 Selective Radiotracers for Vascular Molecular Imaging

机译:新型基质金属蛋白酶12用于血管分子成像的选择性反氨酸酯

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摘要

Matrix metalloproteinase-12 (MMP-12) is highly upregulated in several inflammatory diseases, including abdominal aortic aneurysm (AAA). Here we report four novel Tc-99m-labeled radiotracers derived from a highly selective competitive MMP-12 inhibitor. These tracers in their Tc-99g version were assessed in vitro on a set of human metalloproteases and displayed high affinity and selectivity toward MMP-12. Their radiolabeling with Tc-99m was shown to be efficient and stable in both buffer and mouse blood. The tracers showed major differences in their biodistribution and blood clearance. On the basis of its in vivo performance, [Tc-99m]-1 was selected for evaluation in murine AAA, where MMP-12 gene expression is upregulated. Autoradiography of aortae at 2 h postinjection revealed high uptake of [Tc-99m]-1 in AAA relative to adjacent aorta. Tracer uptake specificity was demonstrated through in vivo competition. This study paves the way for further evaluation of [Tc-99m]-1 for imaging AAA and other MMP-12-associated diseases.
机译:基质金属蛋白酶-12(MMP-12)在几种炎性疾病中高度上调,包括腹主动脉瘤(AAA)。在这里,我们报告了四种新型TC-99M标记的放射性反射蛋白,该衍生自高选择性竞争性MMP-12抑制剂。在其TC-99G版本中的这些示踪剂在一组人金属蛋白酶上进行了评估,并对MMP-12显示出高亲和力和选择性。在缓冲液和小鼠血液中显示其具有TC-99M的放射性标记是有效且稳定的。该示踪剂显示出生物分布和血液清除的主要差异。在其体内性能的基础上,选择鼠AAA的[TC-99M] -1进行评价,其中上调MMP-12基因表达。 Aortae在2小时后的Autoradoograph术,在AAA相对于相邻主动脉释放出高吸收[TC-99M] -1。在体内竞争中证明了跟踪器吸收特异性。本研究铺平了进一步评价[TC-99M] -1用于成像AAA和其他MMP-12-相关疾病的方法。

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  • 来源
    《Journal of Medicinal Chemistry》 |2019年第21期|共10页
  • 作者单位

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    Univ Paris Saclay Serv Ingn Mol Prot SIMOPRO Inst Sci Vivant Frederic Joliot CEA F-91190 Gif Sur Yvette France;

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    Univ Paris Saclay Serv Ingn Mol Prot SIMOPRO Inst Sci Vivant Frederic Joliot CEA F-91190 Gif Sur Yvette France;

    Univ Athens Dept Chem Lab Organ Chem GR-15771 Athens Greece;

    PSL Univ CNRS Sorbonne Univ Ecole Normale Super Lab Biomol LBM F-75005 Paris France;

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    PSL Univ CNRS Sorbonne Univ Ecole Normale Super Lab Biomol LBM F-75005 Paris France;

    Univ Paris Saclay Serv Ingn Mol Prot SIMOPRO Inst Sci Vivant Frederic Joliot CEA F-91190 Gif Sur Yvette France;

    Yale Univ Sch Med Sect Cardiovasc Med Cardiovasc Mol Imaging Lab New Haven CT 06511 USA;

    Univ Paris Saclay Serv Ingn Mol Prot SIMOPRO Inst Sci Vivant Frederic Joliot CEA F-91190 Gif Sur Yvette France;

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  • 正文语种 eng
  • 中图分类 药学;
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