首页> 外文期刊>Journal of Radioanalytical and Nuclear Chemistry: An International Journal Dealing with All Aspects and Applications of Nuclear Chemistry >Comparative cell uptake study of FITC-/Lu-177-labeled RM26 monomer, dimer and trimer on PC-3: improving binding affinity of gastrin releasing peptide receptor (GRPR) antagonist via bivalency/trivalency
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Comparative cell uptake study of FITC-/Lu-177-labeled RM26 monomer, dimer and trimer on PC-3: improving binding affinity of gastrin releasing peptide receptor (GRPR) antagonist via bivalency/trivalency

机译:FITC-/ Lu-177标记的RM26单体,二聚体和三聚体对PC-3的比较细胞摄取研究:通过偶然/三价地改善胃泌素释放肽受体(GRPR)拮抗剂的结合亲和力

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摘要

The gastrin releasing peptide receptors (GRPRs) overexpress in various tumors, which provided the opportunity for GRPR targeted tumor radiological diagnosis and therapy. In recent reports, the GPPR antagonists presented superior specific targeting affinity over the agonists. However, antagonists suffer from many shortcomings regarding their binding affinity and biodistribution properties. In this study, we designed the dimer/trimer antagonists to address the radiotherapy requirements. The results showed both of dimer and trimer RM26 derivatives appeared a progressive improvement. This study provided an efficient strategy to improve the tumor accumulation properties for the GRPR antagonist analogs.
机译:胃泌素释放肽受体(GRPRS)在各种肿瘤中过表达,这为GRPR靶向肿瘤放射学诊断和治疗提供了机会。 在最近的报告中,GPPR拮抗剂对激动剂呈现出优异的靶向亲和力。 然而,拮抗剂患有关于其结合亲和力和生物分布性质的许多缺点。 在这项研究中,我们设计了二聚体/三聚对拮抗剂来解决放射治疗要求。 结果表明二聚体和三聚体RM26衍生物出现了逐步改善。 本研究提供了有效的策略来改善GRPR拮抗剂类似物的肿瘤积累性能。

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