Functionalization of Ruthenium(II) Terpyridine Complexes with Cyclic RGD Peptides To Target Integrin Receptors in Cancer Cells

被引：24

作者：

Hahn, Eva M. ^{[1
,2
]}

Estrada-Ortiz, Natalia ^{[3
]}

Han, Jiaying ^{[3
]}

Ferreira, Vera F. C. ^{[4
]}

Kapp, Tobias G. ^{[5
]}

Correia, Joao D. G. ^{[4
]}

Casini, Angela ^{[2
,3
,5
]}

Kuehn, Fritz E. ^{[1
]}

机构：

[1] Tech Univ Munich, Catalysis Res Ctr, Dept Chem, Mol Catalysis, Lichtenbergstr 4, D-85747 Garching, Germany

[2] Cardiff Univ, Sch Chem, Pk Pl, Cardiff CF103AT, Wales

[3] Univ Groningen, Groningen Res Inst Pharm, Antonius Deusinglaan 1, NL-9713 AV Groningen, Netherlands

[4] Univ Lisbon, Ctr Ciencias Tecnol Nucl, Inst Super Tecn, CTN, Estrada Nacl 10 Km 1397, Bobadela 2695066, Portugal

[5] Tech Univ Munich, Inst Adv Study, Lichtenbergstr 2a, D-85748 Garching, Germany

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2017年 / 12期

关键词：

Antitumor agents; Bioconjugation; Peptides; Receptors; Ruthenium; DNA-BINDING; POLYPYRIDYL COMPLEXES; NANOPARTICLES; CYTOTOXICITY;

D O I：

10.1002/ejic.201601094

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The lack of selectivity for cancer cells and the resulting negative impact on healthy tissue is a severe drawback of actual cancer chemotherapy. Tethering of cytotoxic drugs to targeting vectors such as peptides, which recognize receptors overexpressed on the surface of tumor cells, is one possible strategy to overcome such a problem. The pentapeptide cyc(RGDfK) targets the integrin receptor a(v)beta 3, important for tumor growth and metastasis formation. In this work, two terpyridine-based Ru-II complexes were prepared and for the first time conjugated to cyc(RGDfK) through amide bond formation, which resulted in a monomeric and a dimeric bioconjugate. Both RuII complexes were found to bind strongly and selectively to integrin a(v)beta 3, and the dimeric molecule displayed a 20-fold higher affinity to the receptor than the monomeric one. However, the cytotoxicity of the complexes and related bioconjugates against human A549 and SKOV-3 cell lines is still not sufficient for application as anticancer agents. Nevertheless, considering the high selectivity for integrin receptor a(v)beta 3, the synthesis of Ru-based bioconjugates with cyc(RGDfK) paves a promising way towards the design of effective targeted anticancer agents.

引用

页码：1667 / 1672

页数：6

共 42 条

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