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Li X, Hou J, Wang C, Liu X, He H, Xu P, Yang Z, Chen Z, Wu Y, Zhang L. Synthesis and biological evaluation of RGD-conjugated MEK1/2 kinase inhibitors for integrin-targeted cancer therapy. Molecules 2013; 18:13957-78. [PMID: 24225774 PMCID: PMC6269693 DOI: 10.3390/molecules181113957] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2013] [Revised: 10/12/2013] [Accepted: 10/15/2013] [Indexed: 12/13/2022] Open
Abstract
Two novel series of RGD-MEKI conjugates derived from a MEK1/2 kinase inhibitor--PD0325901--have been developed for integrin receptor mediated anticancer therapy. The first series, alkoxylamine analog RGD-MEKI conjugates 9a-g showed anti-proliferation activity in melanoma A375 cells by the same mechanism as that of PD0325901. PEGylation increased the IC50 value of 9f three-fold in the A375 assay, and the multi-cRGD peptide cargo significantly improved the receptor specific anti-proliferation activity of 9g in integrin-overexpressing U87 cells. In the second series, RGD-PD0325901 13 exhibited significantly increased antitumor properties compared to the alkoxylamine analogs by both inhibition of the ERK pathway activity and DNA replication of the cancer cells. Furthermore, 13 displayed more potent anti-proliferation activity in the U87 assay than PD0325901 in a dose-dependent manner. All these data demonstrate that RGD-MEKI conjugates with an ester bond linkage enhanced anticancer efficacy with improved targeting capability toward integrin-overexpressing tumor cells.
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Affiliation(s)
- Xiaoxiao Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China; E-Mail:
| | - Jianjun Hou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
| | - Chao Wang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
| | - Xinjie Liu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
| | - Hongyan He
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
| | - Ping Xu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
| | - Zhenjun Yang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
| | - Zili Chen
- Department of Chemistry, Renmin University of China, Beijing 100872, China; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (Y.W.); (Z.C.); Tel.: +86-10-8280-5023 (Y.W.); Fax: +86-10-8280-5063 (Y.W.); Tel.: +86-10-6251-6660 (Z.C.); Fax: +86-10-6251-6660 (Z.C.)
| | - Yun Wu
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
- Authors to whom correspondence should be addressed; E-Mails: (Y.W.); (Z.C.); Tel.: +86-10-8280-5023 (Y.W.); Fax: +86-10-8280-5063 (Y.W.); Tel.: +86-10-6251-6660 (Z.C.); Fax: +86-10-6251-6660 (Z.C.)
| | - Lihe Zhang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, 100191, China; E-Mails: (J.H.); (C.W.); (X.L.); (H.H.); (P.X.); (Z.Y.); (L.Z.)
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Martinage O, Le Clainche L, Czarny B, Dugave C. Synthesis and biological evaluation of a new triazole-oxotechnetium complex. Org Biomol Chem 2012; 10:6484-90. [PMID: 22752052 DOI: 10.1039/c2ob25774b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new triazole oxotechnetium chelating agent was synthesized via a 'Click-to-Chelate' strategy. In vivo evaluation of the corresponding (99m)Tc complex shows that the tracer exhibits very interesting properties for molecular imaging.
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Affiliation(s)
- Olivier Martinage
- CEA, iBiTecS, Service d'Ingénierie Moléculaire des Protéines, Laboratoire de Chimie du Vivant, bâtiment 152, 91191 Gif-sur-Yvette, France
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Michalik S. Synthesis, spectroscopic investigation, structural characterization, and DFT calculations of [ReX2(N2COPh)(CH3PhCN)(PPh3)2] (X=Cl, Br). J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.669036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- S. Michalik
- a Department of Inorganic and Coordination Chemistry , Institute of Chemistry, University of Silesia, 9th Szkolna St. , 40-006 Katowice , Poland
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Azuma Y, Imai H, Yoshimura T, Kawabata T, Imanishi M, Futaki S. Dipicolylamine as a unique structural switching element for helical peptides. Org Biomol Chem 2012; 10:6062-8. [DOI: 10.1039/c2ob07118e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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