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Huynh M, Vinck R, Gibert B, Gasser G. Strategies for the Nuclear Delivery of Metal Complexes to Cancer Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311437. [PMID: 38174785 DOI: 10.1002/adma.202311437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 12/20/2023] [Indexed: 01/05/2024]
Abstract
The nucleus is an essential organelle for the function of cells. It holds most of the genetic material and plays a crucial role in the regulation of cell growth and proliferation. Since many antitumoral therapies target nucleic acids to induce cell death, tumor-specific nuclear drug delivery could potentiate therapeutic effects and prevent potential off-target side effects on healthy tissue. Due to their great structural variety, good biocompatibility, and unique physico-chemical properties, organometallic complexes and other metal-based compounds have sparked great interest as promising anticancer agents. In this review, strategies for specific nuclear delivery of metal complexes are summarized and discussed to highlight crucial parameters to consider for the design of new metal complexes as anticancer drug candidates. Moreover, the existing opportunities and challenges of tumor-specific, nucleus-targeting metal complexes are emphasized to outline some new perspectives and help in the design of new cancer treatments.
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Affiliation(s)
- Marie Huynh
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry of Life and Health Sciences, Laboratory for Inorganic Chemistry, Paris, F-75005, France
- Gastroenterology and technologies for Health, Centre de Recherche en Cancérologie de Lyon, INSERM U1052-CNRS5286, Université Lyon 1, Lyon, 69008, France
| | - Robin Vinck
- Orano, 125 avenue de Paris, Châtillon, 92320, France
| | - Benjamin Gibert
- Gastroenterology and technologies for Health, Centre de Recherche en Cancérologie de Lyon, INSERM U1052-CNRS5286, Université Lyon 1, Lyon, 69008, France
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry of Life and Health Sciences, Laboratory for Inorganic Chemistry, Paris, F-75005, France
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2
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Kumar S, Riisom M, Jamieson SMF, Kavianinia I, Harris PWR, Metzler-Nolte N, Brimble MA, Hartinger CG. On-Resin Conjugation of the Ruthenium Anticancer Agent Plecstatin-1 to Peptide Vectors. Inorg Chem 2023; 62:14310-14317. [PMID: 37611203 DOI: 10.1021/acs.inorgchem.3c01718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Abstract
Ruthenium piano-stool complexes have been explored for their anticancer activity and some promising compounds have been reported. Herein, we conjugated a derivative of plecstatin-1 to peptides in order to increase their cancer cell targeting ability. For this purpose, plecstatin-1 was modified at the arene ligand to introduce a functional amine handle (3), which resulted in a compound that showed similar activity in an in vitro anticancer activity assay. The cell-penetrating peptide TAT48-60, tumor-targeting neurotensin8-13, and plectin-targeting peptide were functionalized with succinyl or β-Ala-succinyl linkers under standard solid-phase peptide synthesis (SPPS) conditions to spatially separate the peptide backbones from the bioactive metal complexes. These modifications allowed for conjugating precursor 3 to the peptides on resin yielding the desired metal-peptide conjugates (MPCs), as confirmed by high-performance liquid chromatography (HPLC), NMR spectroscopy, and mass spectrometry (MS). The MPCs were studied for their behavior in aqueous solution and under acidic conditions and resembled that of the parent compound plecstatin-1. In in vitro anticancer activity studies in a small panel of cancer cell lines, the TAT-based MPCs showed the highest activity, while the other MPCs were virtually inactive. However, the MPCs were significantly less active than the small molecules plecstatin-1 and 3, which can be explained by the reduced cell uptake as determined by inductively coupled plasma MS (ICP-MS). Although the MPCs did not display potent anticancer activities, the developed conjugation strategy can be extended toward other metal complexes, which may be able to utilize the targeting properties of peptides.
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Affiliation(s)
- Saawan Kumar
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Mie Riisom
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Stephen M F Jamieson
- Auckland Cancer Society Research Centre, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Iman Kavianinia
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Paul W R Harris
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Nils Metzler-Nolte
- Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum 44801, Germany
| | - Margaret A Brimble
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
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3
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Ilyukhin AB, Koroteev PS, Novotortsev VM. Supramolecular interactions and self-assembling in adducts of cymantrenecarboxylic acid with amino derivatives of five- and six-membered heterocyclic N-bases. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.03.054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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4
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Oyarzo J, Bosque R, Toro P, Silva CP, Arancibia R, Font-Bardía M, Artigas V, Calvis C, Messeguer R, Klahn AH, López C. A novel type of organometallic 2-R-2,4-dihydro-1H-3,1-benzoxazine with R = [M(η5-C5H4)(CO)3] (M = Re or Mn) units. Experimental and computational studies of the effect of substituent R on ring-chain tautomerism. Dalton Trans 2019; 48:1023-1039. [DOI: 10.1039/c8dt03265c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Novel 2-cyrhetrenyl and cymantrenyl-2,4-dihydro-1H-3,1-benzoxazines.
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Jabłoński A, Matczak K, Koceva-Chyła A, Durka K, Steverding D, Jakubiec-Krześniak K, Solecka J, Trzybiński D, Woźniak K, Andreu V, Mendoza G, Arruebo M, Kochel K, Krawczyk B, Szczukocki D, Kowalski K. Cymantrenyl-Nucleobases: Synthesis, Anticancer, Antitrypanosomal and Antimicrobial Activity Studies. Molecules 2017; 22:E2220. [PMID: 29240697 PMCID: PMC6149849 DOI: 10.3390/molecules22122220] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 12/11/2017] [Accepted: 12/12/2017] [Indexed: 11/17/2022] Open
Abstract
The synthesis of four cymantrene-5-fluorouracil derivatives (1-4) and two cymantrene-adenine derivatives (5 and 6) is reported. All of the compounds were characterized by spectroscopic methods and the crystal structure of two derivatives (1 and 6), together with the previously described cymantrene-adenine compound C was determined by X-ray crystallography. While the compounds 1 and 6 crystallized in the triclinic P-1 space group, compound C crystallized in the monoclinic P2₁/m space group. The newly synthesized compounds 1-6 were tested together with the two previously described cymantrene derivatives B and C for their in vitro antiproliferative activity against seven cancer cell lines (MCF-7, MCF-7/DX, MDA-MB-231, SKOV-3, A549, HepG2m and U-87-MG), five bacterial strains Staphylococcus aureus (methicillin-sensitive, methicillin-resistant and vancomycin-intermediate strains), Staphylococcus epidermidis, and Escherichia coli, including clinical isolates of S. aureus and S. epidermidis, as well as against the protozoan parasite Trypanosoma brucei. The most cytotoxic compounds were derivatives 2 and C for A549 and SKOV-3 cancer cell lines, respectively, with 50% growth inhibition (IC50) values of about 7 µM. The anticancer activity of the cymantrene compounds was determined to be due to their ability to induce oxidative stress and to trigger apoptosis and autophagy in cancer cells. Three derivatives (1, 4 and 5) displayed promising antitrypanosomal activity, with GI50 values in the low micromolar range (3-4 µM). The introduction of the 5-fluorouracil moiety in 1 enhanced the trypanocidal activity when compared to the activity previously reported for the corresponding uracil derivative. The antibacterial activity of cymantrene compounds 1 and C was within the range of 8-64 µg/mL and seemed to be the result of induced cell shrinking.
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Affiliation(s)
- Artur Jabłoński
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland;
| | - Karolina Matczak
- Department of Medical Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland; (K.M.); (A.K.-C.); (K.D.); (Kr.K.)
| | - Aneta Koceva-Chyła
- Department of Medical Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland; (K.M.); (A.K.-C.); (K.D.); (Kr.K.)
| | - Kamil Durka
- Department of Medical Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland; (K.M.); (A.K.-C.); (K.D.); (Kr.K.)
| | - Dietmar Steverding
- Bob Champion Research & Education Building, Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7UQ, UK;
| | - Katarzyna Jakubiec-Krześniak
- National Institute of Public Health-National Institute of Hygiene, Chocimska 24, 00-791 Warszawa, Poland; (K.J.-K.); (J.S.)
| | - Jolanta Solecka
- National Institute of Public Health-National Institute of Hygiene, Chocimska 24, 00-791 Warszawa, Poland; (K.J.-K.); (J.S.)
| | - Damian Trzybiński
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki and Wigury 101, 02-089 Warszawa, Poland; (D.T.); (K.W.)
| | - Krzysztof Woźniak
- Biological and Chemical Research Centre, Department of Chemistry, University of Warsaw, Żwirki and Wigury 101, 02-089 Warszawa, Poland; (D.T.); (K.W.)
| | - Vanesa Andreu
- Department of Chemical Engineering. Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; (V.A.); (G.M.); (M.A.)
| | - Gracia Mendoza
- Department of Chemical Engineering. Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; (V.A.); (G.M.); (M.A.)
| | - Manuel Arruebo
- Department of Chemical Engineering. Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Río Ebro-Edificio I+D, C/ Poeta Mariano Esquillor S/N, 50018 Zaragoza, Spain; (V.A.); (G.M.); (M.A.)
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain
| | - Krzysztof Kochel
- Department of Medical Biophysics, Faculty of Biology and Environmental Protection, University of Łódź, Pomorska 141/143, 90-236 Łódź, Poland; (K.M.); (A.K.-C.); (K.D.); (Kr.K.)
| | - Barbara Krawczyk
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland; (B.K.); (D.Sz.)
| | - Dominik Szczukocki
- Faculty of Chemistry, Department of Inorganic and Analytical Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland; (B.K.); (D.Sz.)
| | - Konrad Kowalski
- Department of Organic Chemistry, Faculty of Chemistry, University of Łódź, Tamka 12, 91-403 Łódź, Poland;
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6
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Synthesis of hybrid compounds composed of daunorubicin covalently linked with Cp 2 Fe and CpMn(CO) 3. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.11.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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Lam K, Van Wyck SJ, Geiger WE. One-electron oxidation of chloroquine, cymanquine, and related aminoquinolines in nonaqueous media. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.06.041] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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8
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Zhao JA, Yu HB, Zhi SC, Mao RN, Hu JY, Wang XX. Synthesis, chemical nuclease activity, and in vitro cytotoxicity of benzimidazole-based Cu(II)/Co(II) complexes. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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9
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Feni L, Neundorf I. The Current Role of Cell-Penetrating Peptides in Cancer Therapy. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1030:279-295. [PMID: 29081059 DOI: 10.1007/978-3-319-66095-0_13] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Cell-penetrating peptides (CPPs) are a heterogeneous class of peptides with the ability to translocate across the plasma membrane and to carry attached cargos inside the cell. Two main entry pathways are discussed, as direct translocation and endocytosis , whereas the latter is often favored when bulky cargos are added to the CPP. Attachment to the CPP can be achieved by means of covalent coupling or non-covalent complex formation, depending on the chemical nature of the cargo. Owing to their striking abilities the further development and application of CPP-based delivery strategies has steadily emerged during the past years. However, one main pitfall when using CPPs is their non-selective uptake in nearly all types of cells. Thus, one particular interest lies in the design of targeting strategies that help to circumvent this drawback but still benefit from the potent delivery abilities of CPPs. The following review aims to summarize some of these very recent concepts and to highlight the current role of CPPs in cancer therapy.
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Affiliation(s)
- Lucia Feni
- Department of Chemistry, Biochemistry, University of Cologne, Zuelpicherstr. 47a, D-50674, Cologne, Germany
| | - Ines Neundorf
- Department of Chemistry, Biochemistry, University of Cologne, Zuelpicherstr. 47a, D-50674, Cologne, Germany.
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10
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Kowalski K, Szczupak Ł, Saloman S, Steverding D, Jabłoński A, Vrček V, Hildebrandt A, Lang H, Rybarczyk-Pirek A. Cymantrene, Cyrhetrene and Ferrocene Nucleobase Conjugates: Synthesis, Structure, Computational Study, Electrochemistry and Antitrypanosomal Activity. Chempluschem 2016; 82:303-314. [DOI: 10.1002/cplu.201600462] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 10/04/2016] [Indexed: 01/06/2023]
Affiliation(s)
- Konrad Kowalski
- Faculty of Chemistry; Department of Organic Chemistry; University of Łódź; Tamka 12 91403 Łódź Poland
| | - Łukasz Szczupak
- Faculty of Chemistry; Department of Organic Chemistry; University of Łódź; Tamka 12 91403 Łódź Poland
| | - Sebastian Saloman
- Technische Universität Chemnitz; Faculty of Natural Sciences; Institute of Chemistry; Inorganic Chemistry; 09107 Chemnitz Germany
| | - Dietmar Steverding
- Bob Champion Research & Education Building; Norwich Medical School; University of East Anglia; Norwich Research Park, Norwich NR4 7UQ United Kingdom
| | - Artur Jabłoński
- Faculty of Chemistry; Department of Organic Chemistry; University of Łódź; Tamka 12 91403 Łódź Poland
| | - Valerije Vrček
- Faculty of Pharmacy and Biochemistry; University of Zagreb; Ante Kovačića 1 10000 Zagreb Croatia
| | - Alexander Hildebrandt
- Technische Universität Chemnitz; Faculty of Natural Sciences; Institute of Chemistry; Inorganic Chemistry; 09107 Chemnitz Germany
| | - Heinrich Lang
- Technische Universität Chemnitz; Faculty of Natural Sciences; Institute of Chemistry; Inorganic Chemistry; 09107 Chemnitz Germany
| | - Agnieszka Rybarczyk-Pirek
- Faculty of Chemistry; Department of Theoretical and Structural Chemistry; University of Łódź; Pomorska 163/165 90236 Łódź Poland
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11
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Reichart F, Horn M, Neundorf I. Cyclization of a cell-penetrating peptide via click-chemistry increases proteolytic resistance and improves drug delivery. J Pept Sci 2016; 22:421-6. [PMID: 27197760 DOI: 10.1002/psc.2885] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 03/17/2016] [Accepted: 03/17/2016] [Indexed: 01/22/2023]
Abstract
In this work we report synthesis and biological evaluation of a cell-penetrating peptide (CPP), that is partly cyclized via a triazole bridge. Recently, beneficious properties have been reported for cyclized peptides concerning their metabolic stability and intracellular uptake. A CPP based on human calcitonin was used in this study, and side chain cyclization was achieved via copper catalyzed alkyne-azide click reaction. Cell viability studies in several cell-lines revealed no cytotoxic effects. Furthermore, efficient uptake in breast cancer MCF-7 cells could be determined. Moreover, preliminary studies using this novel peptide as drug transporter for daunorubicin were performed. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
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Affiliation(s)
- Florian Reichart
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zülpicher Str. 47, D-50674, Cologne, Germany
| | - Mareike Horn
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zülpicher Str. 47, D-50674, Cologne, Germany
| | - Ines Neundorf
- Department of Chemistry, Institute of Biochemistry, University of Cologne, Zülpicher Str. 47, D-50674, Cologne, Germany
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12
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Poh HT, Ho PC, Fan WY. Cyclopentadienyl iron dicarbonyl (CpFe(CO)2) derivatives as apoptosis-inducing agents. RSC Adv 2016. [DOI: 10.1039/c5ra23891a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
CpFe(CO)2 complexes kill cancer cells while leaving normal cells unharmed.
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Affiliation(s)
- H. T. Poh
- Department of Chemistry
- National University of Singapore
- Kent Ridge
- Singapore 117543
| | - P. C. Ho
- Department of Pharmacy
- National University of Singapore
- Kent Ridge
- Singapore 117543
| | - W. Y. Fan
- Department of Chemistry
- National University of Singapore
- Kent Ridge
- Singapore 117543
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13
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Hu W, Hoyer J, Neundorf I, Govender P, Smith GS, Schatzschneider U. Synthesis of CpM(CO)3-DAB and -PAMAM Dendrimer Conjugates and Preliminary Evaluation of Their Biological Activity. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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14
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Sista P, Ghosh K, Martinez JS, Rocha RC. Metallo-Biopolymers: Conjugation Strategies and Applications. POLYM REV 2014. [DOI: 10.1080/15583724.2014.913063] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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15
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Pai S, Radacki K, Schatzschneider U. Sonogashira, CuAAC, and Oxime Ligations for the Synthesis of MnITricarbonyl PhotoCORM Peptide Conjugates. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402123] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Heinemann SH, Hoshi T, Westerhausen M, Schiller A. Carbon monoxide--physiology, detection and controlled release. Chem Commun (Camb) 2014; 50:3644-60. [PMID: 24556640 PMCID: PMC4072318 DOI: 10.1039/c3cc49196j] [Citation(s) in RCA: 291] [Impact Index Per Article: 29.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Carbon monoxide (CO) is increasingly recognized as a cell-signalling molecule akin to nitric oxide (NO). CO has attracted particular attention as a potential therapeutic agent because of its reported anti-hypertensive, anti-inflammatory and cell-protective effects. We discuss recent progress in identifying new effector systems and elucidating the mechanisms of action of CO on, e.g., ion channels, as well as the design of novel methods to monitor CO in cellular environments. We also report on recent developments in the area of CO-releasing molecules (CORMs) and materials for controlled CO application. Novel triggers for CO release, metal carbonyls and degradation mechanisms of CORMs are highlighted. In addition, potential formulations of CORMs for targeted CO release are discussed.
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Affiliation(s)
- Stefan H. Heinemann
- Center for Molecular Biomedicine (CMB), Department of Biophysics, Friedrich Schiller University Jena & Jena University Hospital, Hans-Knöll-Straße 2, D-07745 Jena, Germany
| | - Toshinori Hoshi
- Department of Physiology, University of Pennsylvania, 415 Curie Boulevard, 605 CRB, Philadelphia, PA 19104-6085, USA
| | - Matthias Westerhausen
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstr. 8, D-07743 Jena, Germany
| | - Alexander Schiller
- Institute for Inorganic and Analytical Chemistry, Friedrich Schiller University Jena, Humboldtstr. 8, D-07743 Jena, Germany
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17
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Joshi T, Pierroz V, Mari C, Gemperle L, Ferrari S, Gasser G. A Bis(dipyridophenazine)(2-(2-pyridyl)pyrimidine-4-carboxylic acid)ruthenium(II) Complex with Anticancer Action upon Photodeprotection. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201309576] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Joshi T, Pierroz V, Mari C, Gemperle L, Ferrari S, Gasser G. A bis(dipyridophenazine)(2-(2-pyridyl)pyrimidine-4-carboxylic acid)ruthenium(II) complex with anticancer action upon photodeprotection. Angew Chem Int Ed Engl 2014; 53:2960-3. [PMID: 24500767 DOI: 10.1002/anie.201309576] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 12/17/2013] [Indexed: 12/20/2022]
Abstract
Improving the selectivity of anticancer drugs towards cancer cells is one of the main goals of drug optimization; the prodrug strategy has been one of the most promising. A light-triggered prodrug strategy is presented as an efficient approach for controlling cytotoxicity of the substitutionally inert cytotoxic complex [Ru(dppz)2(CppH)](PF6)2(C1; CppH=2-(2-pyridyl)pyrimidine-4-carboxylic acid; dppz=dipyrido[3,2-a:2',3'-c]phenazine). Attachment of a photolabile 3-(4,5-dimethoxy-2-nitrophenyl)-2-butyl (DMNPB) ester ("photocaging") makes the otherwise active complex C1 innocuous to both cancerous (HeLa and U2OS) and non-cancerous (MRC-5) cells. The cytotoxic action can be successfully unleashed in living cells upon light illumination (350 nm), reaching similar level of activity as the parent cytotoxic compound C1. This is the first substitutionally inert cytotoxic metal complex to be used as a light-triggered prodrug candidate.
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Affiliation(s)
- Tanmaya Joshi
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057 Zurich (Switzerland) http://www.gassergroup.com.
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Meier SM, Novak M, Kandioller W, Jakupec MA, Arion VB, Metzler-Nolte N, Keppler BK, Hartinger CG. Identification of the structural determinants for anticancer activity of a ruthenium arene peptide conjugate. Chemistry 2013; 19:9297-307. [PMID: 23712572 DOI: 10.1002/chem.201300889] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Indexed: 11/07/2022]
Abstract
Organometallic Ru(arene)-peptide bioconjugates with potent in vitro anticancer activity are rare. We have prepared a conjugate of a Ru(arene) complex with the neuropeptide [Leu(5)]-enkephalin. [Chlorido(η(6)-p-cymene)(5-oxo-κO-2-{(4-[(N-tyrosinyl-glycinyl-glycinyl-phenylalanyl-leucinyl-NH2)propanamido]-1H-1,2,3-triazol-1-yl)methyl}-4H-pyronato-κO)ruthenium(II)] (8) shows antiproliferative activity in human ovarian carcinoma cells with an IC50 value as low as 13 μM, whereas the peptide or the Ru moiety alone are hardly cytotoxic. The conjugation strategy for linking the Ru(cym) (cym=η(6)-p-cymene) moiety to the peptide involved N-terminal modification of an alkyne-[Leu(5)]-enkephalin with a 2-(azidomethyl)-5-hydroxy-4H-pyran-4-one linker, using Cu(I)-catalyzed alkyne-azide cycloaddition (CuAAC), and subsequent metallation with the Ru(cym) moiety. The ruthenium-bioconjugate was characterized by high resolution top-down electrospray ionization mass spectrometry (ESI-MS) with regard to peptide sequence, linker modification and metallation site. Notably, complete sequence coverage was obtained and the Ru(cym) moiety was confirmed to be coordinated to the pyronato linker. The ruthenium-bioconjugate was analyzed with respect to cytotoxicity-determining constituents, and through the bioconjugate models [{2-(azidomethyl)-5-oxo-κO-4H-pyronato-κO}chloride (η(6)-p-cymene)ruthenium(II)] (5) and [chlorido(η(6)-p-cymene){5-oxo-κO-2-([(4-(phenoxymethyl)-1H-1,2,3-triazol-1-yl]methyl)-4H-pyronato-κO}ruthenium(II)] (6) the Ru(cym) fragment with a triazole-carrying pyronato ligand was identified as the minimal unit required to achieve in vitro anticancer activity.
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Affiliation(s)
- Samuel M Meier
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
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20
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Dallagi T, Saidi M, Jaouen G, Top S. Synthesis and antiproliferative activity of (Z
+ E
)-1-[4-(2-(cyclopentadienyltricarbonylmanganese)-2-oxo-ethoxy)phenyl]-1,2-di(p
-hydroxyphenyl)-but-1-ene against breast cancer cells. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2934] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tesnim Dallagi
- ENSCP Chimie ParisTech; Laboratoire Charles Friedel (LCF); 75005 Paris France
- CNRS; UMR 7223; 75005 Paris France
- Laboratoire des Radiopharmaceutiques; Centre National des Sciences et Technologies Nucléaires, Technopôle de Sidi Thabet; 2020 Sidi Thabet Tunisia
| | - Mouldi Saidi
- Laboratoire des Radiopharmaceutiques; Centre National des Sciences et Technologies Nucléaires, Technopôle de Sidi Thabet; 2020 Sidi Thabet Tunisia
| | - Gérard Jaouen
- ENSCP Chimie ParisTech; Laboratoire Charles Friedel (LCF); 75005 Paris France
- CNRS; UMR 7223; 75005 Paris France
| | - Siden Top
- ENSCP Chimie ParisTech; Laboratoire Charles Friedel (LCF); 75005 Paris France
- CNRS; UMR 7223; 75005 Paris France
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21
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Hoyer J, Neundorf I. Knockdown of a G protein-coupled receptor through efficient peptide-mediated siRNA delivery. J Control Release 2012; 161:826-34. [DOI: 10.1016/j.jconrel.2012.05.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 05/05/2012] [Accepted: 05/08/2012] [Indexed: 12/18/2022]
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22
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Glans L, Hu W, Jöst C, de Kock C, Smith PJ, Haukka M, Bruhn H, Schatzschneider U, Nordlander E. Synthesis and biological activity of cymantrene and cyrhetrene 4-aminoquinoline conjugates against malaria, leishmaniasis, and trypanosomiasis. Dalton Trans 2012; 41:6443-50. [PMID: 22421887 DOI: 10.1039/c2dt30077j] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organometallic analogues of chloroquine show promise as new antimalarial agents capable of overcoming resistance to the parent drug chloroquine. Here, the synthesis and characterization of three new cymantrene (CpMn(CO)(3)) and cyrhetrene (CpRe(CO)(3)) 4-aminoquinoline conjugates with either an amine or amide linker are reported. The antimalarial activity of the new organometallic conjugates N-(2-(7-chloroquinolin-4-ylamino)ethyl)-4-cymantrenylbutanamide (3), N-(2-(7-chloroquinolin-4-ylamino)ethyl)-4-cyrhetrenylbutanamide (4) and N-(7-chloroquinolin-4-yl)-N'-(cymantrenylmethyl)ethane-1,2-diamine (6) was evaluated against a chloroquine-sensitive (CQS) and a chloroquine-resistant strain (CQR) of the malaria parasite Plasmodium falciparum. The cymantrene complex with an amine linker (6) showed good activity against the CQS strain but was inactive against the CQR strain. In contrast, cymantrene and cyrhetrene compounds with an amide linker were active against both the CQS and the CQR strain. In addition, the antibacterial, anti-trypanosomal and anti-leishmanial activity of the compounds was evaluated. Compound 6 showed submicromolar activity against Trypanosoma brucei at a concentration where the toxicity to normal human cells is low. No significant effect was noticed on the exchange of manganese for rhenium in the CpM(CO)(3) moiety in any of the biological assays.
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Affiliation(s)
- Lotta Glans
- Chemical Physics, Center for Chemistry and Chemical Engineering, Lund University, Lund, Sweden
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23
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Geldmacher Y, Splith K, Kitanovic I, Alborzinia H, Can S, Rubbiani R, Nazif MA, Wefelmeier P, Prokop A, Ott I, Wölfl S, Neundorf I, Sheldrick WS. Cellular impact and selectivity of half-sandwich organorhodium(III) anticancer complexes and their organoiridium(III) and trichloridorhodium(III) counterparts. J Biol Inorg Chem 2012; 17:631-46. [DOI: 10.1007/s00775-012-0883-2] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2011] [Accepted: 02/03/2012] [Indexed: 01/09/2023]
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24
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Patra M, Gasser G, Wenzel M, Merz K, Bandow JE, Metzler-Nolte N. Sandwich and Half-Sandwich Derivatives of Platensimycin: Synthesis and Biological Evaluation. Organometallics 2012. [DOI: 10.1021/om201146c] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Malay Patra
- Lehrstuhl für Anorganische
Chemie I-Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Gebäude NC 3
Nord, Universitätsstrasse 150, D-44801 Bochum, Germany,
| | - Gilles Gasser
- Lehrstuhl für Anorganische
Chemie I-Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Gebäude NC 3
Nord, Universitätsstrasse 150, D-44801 Bochum, Germany,
- Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich,
Switzerland
| | - Michaela Wenzel
- Lehrstuhl für
Biologie
der Mikroorganismen, Fakultät
für Biologie und Biotechnologie, Ruhr-Universität Bochum, Universitätsstrasse
150, D-44801 Bochum, Germany
| | - Klaus Merz
- Lehrstuhl für Anorganische
Chemie I-Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Gebäude NC 3
Nord, Universitätsstrasse 150, D-44801 Bochum, Germany,
| | - Julia E. Bandow
- Lehrstuhl für
Biologie
der Mikroorganismen, Fakultät
für Biologie und Biotechnologie, Ruhr-Universität Bochum, Universitätsstrasse
150, D-44801 Bochum, Germany
| | - Nils Metzler-Nolte
- Lehrstuhl für Anorganische
Chemie I-Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Gebäude NC 3
Nord, Universitätsstrasse 150, D-44801 Bochum, Germany,
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25
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Kopf I, Peindy N'Dongo HW, Ballout F, Schatzschneider U, Bründermann E, Havenith M. Introducing cymantrene labels into scattering scanning near-field infrared microscopy. Analyst 2012; 137:4995-5001. [DOI: 10.1039/c2an16201f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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26
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Hoyer J, Hunold A, Schmalz HG, Neundorf I. A novel conjugate of a cell-penetrating peptide and a ferrocenyl amino acid: a potential electrochemical sensor for living cells? Dalton Trans 2012; 41:6396-8. [DOI: 10.1039/c2dt12211a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Yu M, Price JR, Jensen P, Lovitt CJ, Shelper T, Duffy S, Windus LC, Avery VM, Rutledge PJ, Todd MH. Copper, nickel, and zinc cyclam-amino acid and cyclam-peptide complexes may be synthesized with "click" chemistry and are noncytotoxic. Inorg Chem 2011; 50:12823-35. [PMID: 22111787 DOI: 10.1021/ic2020012] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We describe the synthesis of cyclam metal complexes derivatized with amino acids or a tripeptide using a copper(I)-catalyzed Huisgen "click" reaction. The linker triazole formed during the synthesis plays an active coordinating role in the complexes. The reaction conditions do not racemize the amino acid stereocenters. However, a methylene group adjacent to the triazole is susceptible to H/D exchange under ambient conditions, an observation which has potentially important implications for structures involving stereocenters adjacent to triazoles in click-derived structures. The successful incorporation of several amino acids is described, including reactive tryptophan and cysteine side chains. All complexes are formed rapidly upon introduction of the relevant metal salt, including synthetically convenient cases where trifluoroacetate salts of cyclam derivatives are used directly in the metalation. None of the metal complexes displayed any cytotoxicity to mammalian cells, suggesting that the attachment of such complexes to amino acids and peptides does not induce toxicity, further supporting their potential suitability for labeling/imaging studies. One Cu(II)-cyclam-triazole-cysteine disulfide complex displayed moderate activity against MCF-10A breast nontumorigenic epithelial cells.
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Affiliation(s)
- Mingfeng Yu
- School of Chemistry, The University of Sydney, NSW 2006, Australia
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28
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Splith K, Bergmann R, Pietzsch J, Neundorf I. Specific targeting of hypoxic tumor tissue with nitroimidazole-peptide conjugates. ChemMedChem 2011; 7:57-61. [PMID: 21956822 DOI: 10.1002/cmdc.201100401] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Indexed: 11/09/2022]
Affiliation(s)
- Katrin Splith
- Institut für Biochemie, Fakultät für Biowissenschaften, Pharmazie und Psychologie, Universität Leipzig, Leipzig, Germany
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29
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Influence of the metal center and linker on the intracellular distribution and biological activity of organometal-peptide conjugates. J Biol Inorg Chem 2011; 17:175-85. [PMID: 21898043 DOI: 10.1007/s00775-011-0840-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Accepted: 08/21/2011] [Indexed: 01/17/2023]
Abstract
Organometallic complexes conjugated to cell-penetrating peptides (CPPs) are promising systems for diagnostic imaging and therapeutic applications in human medicine. Recently, we reported on the synthesis of cymantrene(CpMn(CO)(3))-CPP conjugates with biological activity on different cancer cell lines. However, the precise mechanism of cytotoxicity remained elusive in these studies. To investigate the role of the metal center and the linker between the CpM(CO)(3) moiety and the peptide, a number of derivatives with manganese replaced by rhenium and the keto linker originally used substituted by a methylene group were prepared and fully characterized by (1)H NMR spectroscopy, infrared spectroscopy, electrospray ionization mass spectrometry, and elemental analysis as well as X-ray structure determination. The organometal-peptide conjugates as well as carboxyfluorescein-labeled derivatives thereof were prepared by solid-phase peptide synthesis, purified by high-performance liquid chromatography, and analyzed by mass spectrometry. Fluorescence microscopy studies of MCF-7 human breast cancer cells revealed an efficient cellular uptake and pronounced nuclear localization of the bioconjugates with the methylene linker compared with systems with the keto group. In addition, the latter also showed a higher cytotoxicity. In contrast, the variation of the metal center from manganese to rhenium had a negligible effect. The structure-activity relationships determined in the present work will aid in the further tuning of the biological activity of organometal-peptide conjugates.
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30
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Brückmann NE, Wahl M, Reiß GJ, Kohns M, Wätjen W, Kunz PC. Polymer Conjugates of Photoinducible CO-Releasing Molecules. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100545] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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31
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Richter S, Neundorf I, Loebner K, Gräber M, Berg T, Bergmann R, Steinbach J, Pietzsch J, Wuest F. Phosphopeptides with improved cellular uptake properties as ligands for the polo-box domain of polo-like kinase 1. Bioorg Med Chem Lett 2011; 21:4686-9. [PMID: 21778054 DOI: 10.1016/j.bmcl.2011.06.103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Revised: 06/22/2011] [Accepted: 06/24/2011] [Indexed: 01/12/2023]
Abstract
Human polo-like kinase 1 (Plk1) is involved in cell proliferation and overexpressed in a broad variety of different cancer types. Due to its crucial role in cancerogenesis Plk1 is a potential target for diagnostic and therapeutic applications. Peptidic ligands can specifically interact with the polo-box domain (PBD) of Plk1, a C-terminal located phosphoepitope binding motif. Recently, phosphopeptide MQSpTPL has been identified as ligand with high binding affinity. However, a radiolabeled version of this peptide showed only insufficient cellular uptake. The present study investigated peptide dimers consisting of PBD-targeting phosphopeptide MQSpTPL and a cell-penetrating peptide (CPP) moiety. The new constructs demonstrate superior uptake in different cancer cell-lines compared to the phosphopeptide alone. Furthermore, we could demonstrate binding of phosphopeptide-CPP dimers to PBD of Plk1 making the compounds interesting leads for the development of molecular probes for imaging Plk1 in cancer.
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Affiliation(s)
- Susan Richter
- Institute of Radiopharmacy, Helmholtz Center Dresden-Rossendorf, Dresden, Germany
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32
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Schatzschneider U. PhotoCORMs: Light-triggered release of carbon monoxide from the coordination sphere of transition metal complexes for biological applications. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.02.068] [Citation(s) in RCA: 218] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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33
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Beck W. Metal Complexes of Biologically Important Ligands, CLXXVI.[1] Formation of Peptides within the Coordination Sphere of Metal Ions and of Classical and Organometallic Complexes and Some Aspects of Prebiotic Chemistry. Z Anorg Allg Chem 2011. [DOI: 10.1002/zaac.201100137] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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34
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Utepova IA, Musikhina AA, Chupakhin ON, Slepukhin PA. New Approach to the Synthesis of Azinylcymantrenes. Organometallics 2011. [DOI: 10.1021/om200159f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Ahrens VM, Frank R, Stadlbauer S, Beck-Sickinger AG, Hey-Hawkins E. Incorporation of ortho-Carbaboranyl-Nε-Modified l-Lysine into Neuropeptide Y Receptor Y1- and Y2-Selective Analogues. J Med Chem 2011; 54:2368-77. [DOI: 10.1021/jm101514m] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Verena M. Ahrens
- Universität Leipzig, Institute of Biochemistry, Brüderstraße 34, 04103 Leipzig
| | - René Frank
- Universität Leipzig, Institute of Inorganic Chemistry, Johannisallee 29, 04103 Leipzig
| | - Sven Stadlbauer
- Universität Leipzig, Institute of Inorganic Chemistry, Johannisallee 29, 04103 Leipzig
| | | | - Evamarie Hey-Hawkins
- Universität Leipzig, Institute of Inorganic Chemistry, Johannisallee 29, 04103 Leipzig
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36
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Splith K, Neundorf I. Antimicrobial peptides with cell-penetrating peptide properties and vice versa. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2011; 40:387-97. [PMID: 21336522 DOI: 10.1007/s00249-011-0682-7] [Citation(s) in RCA: 194] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 02/02/2011] [Accepted: 02/03/2011] [Indexed: 12/26/2022]
Abstract
Antimicrobial peptides (AMPs) are a group of peptides that are active against a diverse spectrum of microorganisms. Due to their mode of action, AMPs are a promising class of molecules that could overcome the problems of increasing resistance of bacteria to conventional antibiotics. Furthermore, AMPs are strongly membrane-active and some are able to translocate into cells without the necessity for permanent membrane permeabilization. This feature has brought them into focus for use as transport vectors in the context of drug delivery. Since the plasma membrane restricts transport of bioactive substances into cells, great research interest lies in the development of innovative ways to overcome this barrier and to increase bioavailability. In this context, peptide-based transport systems, such as cell-penetrating peptides (CPPs), have come into focus, and their efficiency has been demonstrated in many different applications. However, more recently, also some AMPs have been used as efficient vectors for intracellular translocation of various active molecules. This review summarizes recent efforts in this interesting field of drug delivery. Moreover, some examples of the application of CPPs as efficient antimicrobial substances will be discussed.
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Affiliation(s)
- Katrin Splith
- Institute of Biochemistry, Faculty of Biosciences, Pharmacy and Psychology, University of Leipzig, Brüderstr. 34, 04103 Leipzig, Germany
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37
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Affiliation(s)
- Gilles Gasser
- Institute of Inorganic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Ingo Ott
- Institute of Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstrasse 55, 38106 Braunschweig, Germany
| | - Nils Metzler-Nolte
- Chair of Inorganic Chemistry I, Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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38
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Subcellular IR Imaging of a Metal-Carbonyl Moiety Using Photothermally Induced Resonance. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201003161] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Policar C, Waern JB, Plamont MA, Clède S, Mayet C, Prazeres R, Ortega JM, Vessières A, Dazzi A. Subcellular IR imaging of a metal-carbonyl moiety using photothermally induced resonance. Angew Chem Int Ed Engl 2010; 50:860-4. [PMID: 20941714 DOI: 10.1002/anie.201003161] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Indexed: 11/09/2022]
Affiliation(s)
- Clotilde Policar
- Laboratoire des BioMolécules, Université Paris 6, CNRS-UMR7203, Département Chimie de l'ENS, 24 rue Lhomond 75231 Paris Cedex 05, France.
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40
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Patra M, Gasser G, Bobukhov D, Merz K, Shtemenko AV, Metzler-Nolte N. Sequential insertion of three different organometallics into a versatile building block containing a PNA backbone. Dalton Trans 2010; 39:5617-9. [PMID: 20485811 DOI: 10.1039/c003598j] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the view of developing a synthetic route for the controlled insertion of distinct organometallic moieties into peptide nucleic acid (PNA) oligomers, a proof-of-principle study of the chemoselective insertion of three different organometallics into a building block containing both a PNA backbone and an alkyne side-chain is presented in this study.
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Affiliation(s)
- Malay Patra
- Lehrstuhl für Anorganische Chemie I, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Gebäude NC 3 Nord, Universitätsstr. 150, 44801, Bochum, Germany
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41
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Affiliation(s)
- Ulrich Schatzschneider
- Lehrstuhl für Anorganische Chemie I – Bioanorganische Chemie and Research Department Interfacial Systems Chemistry (RD IFSC), Ruhr‐Universität Bochum NC 3/74, Universitätsstr. 150, 44801 Bochum, Germany, Fax: +49‐234‐32‐14378
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42
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Splith K, Neundorf I, Hu W, Peindy N'Dongo HW, Vasylyeva V, Merz K, Schatzschneider U. Influence of the metal complex-to-peptide linker on the synthesis and properties of bioactive CpMn(CO)3 peptide conjugates. Dalton Trans 2010; 39:2536-45. [PMID: 20179846 DOI: 10.1039/b916907e] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
By combining organometallic groups and peptides, a large number of conjugates with interesting new biological properties can be prepared. Especially, attachment to cell-penetrating peptides (CPP) that act as efficient cell delivery vehicles has come to the fore. However, the presence of the metal moiety in such systems can interfere with standard conjugate synthesis procedures which therefore need to be optimized for every new compound. In this work, we report on the preparation of six new cymantrene-sC18 peptide bioconjugates that were prepared by solid phase peptide synthesis (SPPS) techniques. The cymantrene complexes were chosen for their different linker to the peptide, to study the influence of the linker group on cellular uptake and cell viability of the conjugates. Interestingly, the attachment of the metal complex leads to a non-standard cleavage of the Rink amide linker used in the SPPS protocol under trifluoroacetic acid (TFA) treatment, resulting in peptide amides that are N-alkylated at the C-terminus. Furthermore, we found that depending on the type of cymantrene moiety attached, the formation of reactive carbocations which result from decomposition of the resin linker is facilitated and can alkylate the metal complex moiety. Both effects were analyzed by MS/MS studies and cleavage mixtures for efficient elimination of this byproduct formation were identified. Moreover, initial biological testing of the cytotoxicity of one of the bioconjugates gave promising results. Concentration-dependent cell viability studies of Cym1-sC18 on human MCF-7 breast adenocarcinoma cells gave an IC(50) value of 59.8 (+/- 6.7) microM and demonstrate their potential in anticancer chemotherapy.
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Affiliation(s)
- Katrin Splith
- Institut für Biochemie, Universität Leipzig, Brüderstr. 34, D-04103, Leipzig, Germany
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43
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Crespy D, Landfester K, Schubert US, Schiller A. Potential photoactivated metallopharmaceuticals: from active molecules to supported drugs. Chem Commun (Camb) 2010; 46:6651-62. [DOI: 10.1039/c0cc01887b] [Citation(s) in RCA: 142] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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44
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45
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Zagermann J, Merz K, Metzler-Nolte N. Labeling of Peptides with Halocarbonyltungsten Complexes Containing Functional η2-Alkynyl Ligands. Organometallics 2009. [DOI: 10.1021/om9002297] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Johannes Zagermann
- Lehrstuhl für Anorganische Chemie I−Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Klaus Merz
- Lehrstuhl für Anorganische Chemie I−Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Nils Metzler-Nolte
- Lehrstuhl für Anorganische Chemie I−Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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