1
|
Kaczmarek R, Radzikowska-Cieciura E, Królewska-Golińska K, Dolot R, Wheeler KA, Chavez FA, Dembinski R. Synthesis and Determination of Anticancer Activity of Dicobalt Hexacarbonyl 2'-Deoxy-5-alkynylfuropyrimidines. ACS Med Chem Lett 2023; 14:962-969. [PMID: 37465308 PMCID: PMC10351056 DOI: 10.1021/acsmedchemlett.3c00152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 06/20/2023] [Indexed: 07/20/2023] Open
Abstract
Dicobalt hexacarbonyl 5-alkynyl furopyrimidine nucleoside analogs, with 4-methylphenyl (p-tolyl) and 4-pentylphenyl substituents attached at the C-6 base position, designed in the form of ribose acetyl esters, were synthesized (42-96%). Attached at the C-5 position were propargyl alcohol, its methyl ether and acetate derivatives, butynol, and the 4-methylphenyl- (p-tolyl) and 4-pentylphenyl-substituted alkynyl groups, which were coordinated to a dicobalt hexacarbonyl unit. The structure of 5-(3-acetoxyprop-1-yn-1-yl)-6-p-tolyl-2'-deoxyribofuranosyl-furo[2,3-d]pyrimidin-2-one was determined by X-ray crystallography. Density functional theory calculations performed on the corresponding derivative yielded geometric parameters for the dicobalt hexacarbonyl adduct of this ligand. The cytotoxic activity of each of dicobalt modified nucleosides on cancer cells of different phenotypes was determined in vitro. The investigated compounds showed antiproliferative effects with median inhibitory concentration (IC50) values in the ranges of 14-90 and 9-50 μM for HeLa and K562 cells, respectively. The formation of reactive oxygen species in the presence of modified nucleosides was determined in K562 cells. The results indicate that the mechanism of action for the studied compounds may be related to the induction of oxidative stress.
Collapse
Affiliation(s)
- Renata Kaczmarek
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Ewa Radzikowska-Cieciura
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Karolina Królewska-Golińska
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Rafał Dolot
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
| | - Kraig A. Wheeler
- Department
of Chemistry, Whitworth University, 300 W. Hawthorne Rd., Spokane, Washington 99251, United States
| | - Ferman A. Chavez
- Department
of Chemistry, Oakland University, 146 Library Dr., Rochester, Michigan 48309-4479, United States
| | - Roman Dembinski
- Centre
of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, 90-363 Łódź, Poland
- Department
of Chemistry, Oakland University, 146 Library Dr., Rochester, Michigan 48309-4479, United States
| |
Collapse
|
2
|
(µ2-η4-N-(2-Butynyl)phthalimide)(hexacarbonyl)dicobalt. MOLBANK 2023. [DOI: 10.3390/m1545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The reaction of [Co2(CO)8] with an equimolar amount of the internal alkyne N-(2-butynyl)phthalimide (1-Phthalimido-2-butyne) 1 in heptane solution yields the title compound [Co2(CO)6(µ-phthalimidoCH2C≡CMe)] 2. Compound 2 has been characterized using IR, 1H and 13C NMR spectroscopy; the tetrahedrane-type cluster framework has been ascertained using a single-crystal X-ray diffraction study performed at 100 K.
Collapse
|
3
|
Truong D, Lam NYS, Kamalov M, Riisom M, Jamieson SMF, Harris PWR, Brimble MA, Metzler-Nolte N, Hartinger C. A solid support-based synthetic strategy for the site-selective functionalization of peptides with organometallic half-sandwich moieties. Chemistry 2021; 28:e202104049. [PMID: 34967066 DOI: 10.1002/chem.202104049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Indexed: 11/11/2022]
Abstract
The number of donor atoms available on peptides that can competitively coordinate to metal centers renders the site-selective generation of advanced metal-peptide conjugates in high purity a challenging venture. Herein, we present a transmetalation-based synthetic approach on solid support in which an imidazolium proligand can be used to selectively anchor a range of transition metal half-sandwich complexes onto peptides in the presence of multiple coordinative motifs. Amenable to solid support, a range of N-terminus and/or lysine conjugated metal-peptide conjugates were obtained in high purity after cleavage from the resin. The metalated peptides were evaluated for their anticancer properties against human cancer cell lines. While no cytotoxic activity was observed, this platform has the potential to i) provide a pathway to site-selective peptide labelling, ii) be explored as a biorthogonal handle and/or iii) generate a new strategy for ligand design in transition metal catalysts.
Collapse
Affiliation(s)
- Dianna Truong
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | - Nelson Y S Lam
- The Scripps Research Institute, Department of Chemistry, UNITED STATES
| | - Meder Kamalov
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | - Mie Riisom
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | | | - Paul W R Harris
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | | | | | - Christian Hartinger
- University of Auckland, School of Chemical Sciences, 23 Symonds Street, 1010, Auckland, NEW ZEALAND
| |
Collapse
|
4
|
Liu HP, Liao Y, Ren MZ, Quan ZJ, Wang XC. Synthesis, structural characterization, molecular docking study, biological activity of carbon monoxide release molecules as potent antitumor agents. Bioorg Chem 2021; 107:104621. [PMID: 33465671 DOI: 10.1016/j.bioorg.2020.104621] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/15/2020] [Accepted: 12/29/2020] [Indexed: 11/12/2022]
Abstract
In this study, two series of novel carbon monoxide-releasing molecules (CO-RMs) containing Co were designed and synthesized. The synthesized complexes were characterized by IR, ESI-MS, 1H NMR and 13C NMR spectroscopies. The antitumor activity of all complexes on HepG2 cells, Hela cells and MDA-MB-231 cells were assayed by MTT. IC50 values of complexes 1-13 were 4.7-548.6 µM. Among these complexes, complex 1 was presented with a high selectivity to HepG2 cells (IC50 = 4.7 ± 0.76 μM). Compared with iCORM (inactive CORM), CORM (complex 1) showed a remarkable activity against tumor cells owing to co-effect of CO and the ligand of COX-2 inhibitor. In addition, complex 1 increased ROS in mitochondria and caused a decrease of dose-dependent mitochondrial membrane potential against HepG2 cells. Complex 1 down-regulated the expression of COX-2 protein in western blot analysis. The molecular docking study suggested that the complex 1 formed a hydrogen bond with amino acid R120 in the active site of the Human cyclooxygenase-2 (COX-2). Therefore, the complex 1 could induce apoptosis of HepG2 cells through targeting COX-2 and mitochondria pathways, and it maybe a potential therapeutic agent for cancer.
Collapse
Affiliation(s)
- Hua-Peng Liu
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China; Department of Pharmacy, Gansu Medical College, Pingliang, Gansu 744000, PR China
| | - Yuan Liao
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China
| | - Ming-Zhe Ren
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China
| | - Zheng-Jun Quan
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China; Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Lanzhou, Gansu 730070, PR China.
| | - Xi-Cun Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, PR China; Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, Lanzhou, Gansu 730070, PR China.
| |
Collapse
|
5
|
Li J, Zhang J, Zhang Q, Wang Y, Bai Z, Zhao Q, He D, Wang Z, Zhang J, Chen Y. Synthesis, toxicity and antitumor activity of cobalt carbonyl complexes targeting hepatocellular carcinoma. Bioorg Med Chem 2019; 27:115071. [PMID: 31472989 DOI: 10.1016/j.bmc.2019.115071] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/20/2019] [Accepted: 08/22/2019] [Indexed: 10/26/2022]
Abstract
Based on our previous research, a series of targeting hepatocellular carcinoma complexes, [R-Glycyrrhetinic acid-CH2C2H-[Co2(CO)6] (R = H, 1; R = NSAIDs-COOH, 2-4; R = Aromatic acid, 5-7; R = Amino acid, 8-10), were synthesized. The test showed they are slow CO releasers. Using HeLa, A549, HT-29, SMMC7721 and HepG2 cells as models, their activities against tumor cell proliferation were firstly evaluated. The resulting data show all the complexes displayed a good anti-proliferation activity against the HepG2 and SMMC-7721 liver cancer cells, and their IC50 values were in the range of 10.07-66.06 µM; compared with cis-platin (DDP), their activities were comparable or even better under the same condition. Among them, complexes 3, 4, 6 and 9 exhibited higher anti-proliferation activities against HepG2 and SMMC-7721 cell lines than the other cell lines. To confirm further these complexes have selectivity to the liver cells, the uptakes of complexes 3, 4, 6 and 9 by HepG2, HT-29, A549 and SMMC7721 cell lines were studied. The results show the cell uptake rates of the complexes by HepG2 cells and SMMC7721 cells were much greater than by other cells under the same condition. In following tests, the tested complexes displayed higher activities in inhibiting NF-kB, COX-2 and iNOS; and they induced HepG2 cells apoptosis by mitochondrial pathway, which assessed by staining with different fluorescent reagent DAPI, PI, Mito-Tracker Green and DCFH-DA. Meanwhile, the tested complexes up-regulated the expression levels of caspase-3 and Bax, down-regulated the Bcl-2 expression. In addition, they had no effect on zebrafish embryo survival, embryo hatching, embryonic movement, zebrafish malformation and zebrafish movement at below 0.5 µM. This suggests the complexes are potential candidates to be used in clinic for liver cancers.
Collapse
Affiliation(s)
- Jili Li
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Jinlong Zhang
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Qiuping Zhang
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Yanni Wang
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Zhongjie Bai
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Quanyi Zhao
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China.
| | - Dian He
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Zhen Wang
- Institute of Medicinal Chemistry, School of Pharmacy of Lanzhou University, Lanzhou 730000, China
| | - Jingke Zhang
- 2 GLP Lab Centre, School of Basic Medicine of Lanzhou University, Lanzhou 730000, China
| | - Yonglin Chen
- The First Affiliated Hospital of Lanzhou University, Lanzhou 730000, China
| |
Collapse
|
6
|
Fernández-Moreira V, Herrera RP, Gimeno MC. Anticancer properties of gold complexes with biologically relevant ligands. PURE APPL CHEM 2018. [DOI: 10.1515/pac-2018-0901] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Abstract
The present review highlights our findings in the field of antitumor gold complexes bearing biologically relevant molecules, such as DNA-bases, amino acids or peptide derivatives. The results show that very active complexes are achieved with this sort of ligands in several cancer cells. In these compounds the gold center is bonded to these biological molecules mainly through a sulfur atom belonging to a cysteine moiety or to a thionicotinic moiety as result of the functionalization of the biological compounds, and additionally phosphines or N-heterocyclic carbenes are present as ancillary ligands. These robust compounds are stable in the biological media and can be transported to their targets without previous deactivation. The presence of these scaffolds represents a good approach to obtain complexes with improved biologically activity, better transport and biodistribution to cancer cells. Thioredoxin reductase (TrxR) has been shown as the main target for these complexes and in some cases, DNA interactions has been also observed.
Collapse
Affiliation(s)
- Vanesa Fernández-Moreira
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , CSIC-Universidad de Zaragoza , C/Pedro Cerbuna, No. 12 , E-50009 Zaragoza , Spain
| | - Raquel P. Herrera
- Departamento de Química Orgánica, Laboratorio de Organocatálisis Asimétrica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , CSIC-Universidad de Zaragoza , C/Pedro Cerbuna, No. 12 , E-50009 Zaragoza , Spain
| | - M. Concepción Gimeno
- Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea (ISQCH) , CSIC-Universidad de Zaragoza , C/Pedro Cerbuna, No. 12 , E-50009 Zaragoza , Spain
| |
Collapse
|
7
|
Kaczmarek R, Korczyński D, Królewska‐Golińska K, Wheeler KA, Chavez FA, Mikus A, Dembinski R. Organometallic Nucleosides: Synthesis and Biological Evaluation of Substituted Dicobalt Hexacarbonyl 2'-Deoxy-5-oxopropynyluridines. ChemistryOpen 2018; 7:237-247. [PMID: 29531887 PMCID: PMC5838391 DOI: 10.1002/open.201700168] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Indexed: 01/16/2023] Open
Abstract
Reactions of dicobalt octacarbonyl [Co2(CO)8] with 2'-deoxy-5-oxopropynyluridines and related compounds gave dicobalt hexacarbonyl nucleoside complexes (83-31 %). The synthetic outcomes were confirmed by X-ray structure determination of dicobalt hexacarbonyl 2'-deoxy-5-(4-hydroxybut-1-yn-1-yl)uridine, which exhibits intermolecular hydrogen bonding between a modified base and ribose. The electronic structure of this compound was characterized by the DFT calculations. The growth inhibition of HeLa and K562 cancer cell lines by organometallic nucleosides was examined and compared to that by alkynyl nucleoside precursors. Coordination of the dicobalt carbonyl moiety to the 2'-deoxy-5-alkynyluridines led to a significant increase in the cytotoxic potency. The cobalt compounds displayed antiproliferative activities with median inhibitory values (IC50) in the range of 20 to 80 μm for the HeLa cell line and 18 to 30 μm for the K562 cell line. Coordination of an acetyl-substituted cobalt nucleoside was expanded by using the 1,1-bis(diphenylphosphino)methane (dppm) ligand, which exhibited cytotoxicity at comparable levels. The formation of reactive oxygen species in the presence of cobalt compounds was determined in K562 cells. The results indicate that the mechanism of action for most antiproliferative cobalt compounds may be related to the induction of oxidative stress.
Collapse
Affiliation(s)
- Renata Kaczmarek
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Dariusz Korczyński
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Karolina Królewska‐Golińska
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
| | - Kraig A. Wheeler
- Department of ChemistryWhitworth University300 W. Hawthorne Rd.SpokaneWA99251USA
| | - Ferman A. Chavez
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| | - Agnieszka Mikus
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| | - Roman Dembinski
- Department of Bioorganic ChemistryCentre of Molecular and Macromolecular StudiesPolish Academy of SciencesSienkiewicza 11290–363ŁódźPoland
- Department of ChemistryOakland University146 Library DriveRochesterMI48309-4479USA
| |
Collapse
|
8
|
Singh N, Jang S, Jo JH, Kim DH, Park DW, Kim I, Kim H, Kang SC, Chi KW. Coordination-Driven Self-Assembly and Anticancer Potency Studies of Ruthenium-Cobalt-Based Heterometallic Rectangles. Chemistry 2016; 22:16157-16164. [PMID: 27689935 DOI: 10.1002/chem.201603521] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Indexed: 12/30/2022]
Abstract
Three new cobalt-ruthenium heterometallic molecular rectangles, 1-3, were synthesized through the coordination-driven self-assembly of a new cobalt sandwich donor, (η5 -Cp)Co[C4 -trans-Ph2 (4-Py)2 ] (L; Cp: cyclopentyl; Py: pyridine), and one of three dinuclear precursors, [(p-cymene)2 Ru2 (OO∩OO)2 Cl2 ] [OO∩OO: oxalato (A1 ), 5,8-dioxido-1,4-naphthoquinone (A2 ), or 6,11-dioxido-5,12-naphthacenedione (A3 )]. All of the self-assembled architectures were isolated in very good yield (92-94 %) and were fully characterized by spectroscopic analysis; the molecular structures of 2 and 3 were determined by single-crystal X-ray diffraction analysis. The anticancer activities of bimetallic rectangles 1-3 were evaluated with a 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay, an autophagy assay, and Western blotting. Rectangles 1-3 showed higher cytotoxicity than doxorubicin in AGS human gastric carcinoma cells. In addition, the autophagic activities and apoptotic cell death ratios were increased in AGS cells by treatment with 1-3; the rectangles induced autophagosome formation by promoting LC3-I to LC3-II conversion and apoptotic cell death by increasing caspase-3/7 activity. Our results suggest that rectangles 1-3 induce gastric cancer cell death by modulating autophagy and apoptosis and that they have potential use as agents for the treatment of human gastric cancer.
Collapse
Affiliation(s)
- Nem Singh
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Sunphil Jang
- Department of Oriental Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Jae-Ho Jo
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Dong Hwan Kim
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea
| | - Dae Won Park
- Department of Oriental Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - InHye Kim
- Department of Oriental Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea
| | - Hyunuk Kim
- Energy Materials Laboratory, Korea Institute of Energy Research, Daejeon, 34129, Republic of Korea.
| | - Se Chan Kang
- Department of Oriental Biotechnology, College of Life Sciences, Kyung Hee University, Yongin, 17104, Republic of Korea.
| | - Ki-Whan Chi
- Department of Chemistry, University of Ulsan, Ulsan, 44610, Republic of Korea.
| |
Collapse
|
9
|
Albada B, Metzler-Nolte N. Organometallic–Peptide Bioconjugates: Synthetic Strategies and Medicinal Applications. Chem Rev 2016; 116:11797-11839. [DOI: 10.1021/acs.chemrev.6b00166] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Nils Metzler-Nolte
- Inorganic
Chemistry I − Bioinorganic Chemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780-D Bochum, Germany
| |
Collapse
|
10
|
Munteanu CR, Suntharalingam K. Advances in cobalt complexes as anticancer agents. Dalton Trans 2016; 44:13796-808. [PMID: 26148776 DOI: 10.1039/c5dt02101d] [Citation(s) in RCA: 199] [Impact Index Per Article: 24.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The evolution of resistance to traditional platinum-based anticancer drugs has compelled researchers to investigate the cytostatic properties of alternative transition metal-based compounds. The anticancer potential of cobalt complexes has been extensively studied over the last three decades, and much time has been devoted to understanding their mechanisms of action. This perspective catalogues the development of antiproliferative cobalt complexes, and provides an in depth analysis of their mode of action. Early studies on simple cobalt coordination complexes, Schiff base complexes, and cobalt-carbonyl clusters will be documented. The physiologically relevant redox properties of cobalt will be highlighted and the role this plays in the preparation of hypoxia selective prodrugs and imaging agents will be discussed. The use of cobalt-containing cobalamin as a cancer specific delivery agent for cytotoxins will also be described. The work summarised in this perspective shows that the biochemical and biophysical properties of cobalt-containing compounds can be fine-tuned to produce new generations of anticancer agents with clinically relevant efficacies.
Collapse
|
11
|
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.
Collapse
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
| |
Collapse
|
12
|
Zhang G, Tan J, Zhang YZ, Ta C, Sanchez S, Cheng SY, Golen JA, Rheingold AL. Syntheses, structures and cytotoxicity of cobalt(II) complexes with 4′-chloro-2,2′:6′,2″-terpyridine. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.06.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
13
|
Gutiérrez A, Gimeno MC, Marzo I, Metzler-Nolte N. Synthesis, Characterization, and Cytotoxic Activity of AuIN,S-Heterocyclic Carbenes Derived from Peptides ContainingL-Thiazolylalanine. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402103] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
14
|
Gervasio G, Sappa E, Secco A. Advances in the chemistry of alkyne-substituted homo- and heterometallic carbonyl clusters of the iron, cobalt and nickel triads. An update. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.08.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
15
|
Crystal structure of (CO)2(NO)Cr{η5-C5H4C(CH3)=NNH[2,4-(NO2)2C6H3]} and unequivocal assignments of C(2,5) and C(3,4) on the cyclopentadienyl ring of cynichrodene, tricarbonyl(η5-cyclopentadienyl)methylmolybdenum and tricarbonyl(η5-cyclopentadienyl)methyltungsten bearing a 2,4-dinitrophenyl hydrazinyl substituent in 13C NMR spectra. Polyhedron 2014. [DOI: 10.1016/j.poly.2013.10.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Gross A, Habig D, Metzler-Nolte N. Synthesis and Structure-Activity Relationship Study of Organometallic Bioconjugates of the Cyclic Octapeptide Octreotate. Chembiochem 2013; 14:2472-9. [DOI: 10.1002/cbic.201300450] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Indexed: 12/25/2022]
|
17
|
Monney A, Albrecht M. Transition metal bioconjugates with an organometallic link between the metal and the biomolecular scaffold. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2012.12.015] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
18
|
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.
Collapse
Affiliation(s)
- Samuel M Meier
- Institute of Inorganic Chemistry, University of Vienna, Waehringer Strasse 42, 1090 Vienna, Austria
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Unequivocal assignments of C(2,5) and C(3,4) on the cyclopentadienyl ring of dicarbonyl(η5-cyclopentadienyl)nitrosylchromium, dicarbonyl(η5-cyclopentadienyl)cobalt, and tricarbonyl(η5-cyclopentadienyl)methyltungsten derivatives bearing an electron-withdrawing carbonyl substituent in 13C NMR spectra. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.08.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
20
|
Albada HB, Chiriac AI, Wenzel M, Penkova M, Bandow JE, Sahl HG, Metzler-Nolte N. Modulating the activity of short arginine-tryptophan containing antibacterial peptides with N-terminal metallocenoyl groups. Beilstein J Org Chem 2012; 8:1753-64. [PMID: 23209509 PMCID: PMC3511009 DOI: 10.3762/bjoc.8.200] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2012] [Accepted: 09/06/2012] [Indexed: 11/23/2022] Open
Abstract
A series of small synthetic arginine and tryptophan containing peptides was prepared and analyzed for their antibacterial activity. The effect of N-terminal substitution with metallocenoyl groups such as ferrocene (FcCO) and ruthenocene (RcCO) was investigated. Antibacterial activity in different media, growth inhibition, and killing kinetics of the most active peptides were determined. The toxicity of selected derivatives was determined against erythrocytes and three human cancer cell lines. It was shown that the replacement of an N-terminal arginine residue with a metallocenoyl moiety modulates the activity of WRWRW-peptides against Gram-positive and Gram-negative bacteria. MIC values of 2–6 µM for RcCO-W(RW)2 and 1–11 µM for (RW)3 were determined. Interestingly, W(RW)2-peptides derivatized with ferrocene were significantly less active than those derivatized with ruthenocene which have similar structural but different electronic properties, suggesting a major influence of the latter. The high activities observed for the RcCO-W(RW)2- and (RW)3-peptides led to an investigation of the origin of activity of these peptides using several important activity-related parameters. Firstly, killing kinetics of the RcCO-W(RW)2-peptide versus killing kinetics of the (RW)3 derivative showed faster reduction of the colony forming units for the RcCO-W(RW)2-peptide, although MIC values indicated higher activity for the (RW)3-peptide. This was confirmed by growth inhibition studies. Secondly, hemolysis studies revealed that both peptides did not lead to significant destruction of erythrocytes, even up to 500 µg/mL for (RW)3 and 250 µg/mL for RcCO-W(RW)2. In addition, toxicity against three human cancer cell lines (HepG2, HT29, MCF7) showed that the (RW)3-peptide had an IC50 value of ~140 µM and the RcW(RW)2 one of ~90 µM, indicating a potentially interesting therapeutic window. Both the killing kinetics and growth inhibition studies presented in this work point to a membrane-based mode of action for these two peptides, each having different kinetic parameters.
Collapse
Affiliation(s)
- H Bauke Albada
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | | | | | | | | | | | | |
Collapse
|
21
|
Wang YP, Wu P, Lin TS. Synthesis and 2D NMR spectra of (CO)2(NO)Cr[(η5-C5H4)CH+(BF4−)(η5-C5H4)]Ru(η5-C5H5) α-cynichrodenyl-α-ruthenocenylmethylium tetrafluoroborate. Polyhedron 2012. [DOI: 10.1016/j.poly.2012.04.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
22
|
Abramkin S, Valiahdi SM, Jakupec MA, Galanski M, Metzler-Nolte N, Keppler BK. Solid-phase synthesis of oxaliplatin-TAT peptide bioconjugates. Dalton Trans 2012; 41:3001-5. [PMID: 22281694 DOI: 10.1039/c2dt12024k] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Platinum-based drugs play a crucial role in the fight against cancer. Oxaliplatin, which is used in the treatment of colorectal carcinoma, was the last platinum-based agent to be approved worldwide. However, the efficiency of the therapy is limited for example by a low accumulation of the drug in cancer cells. Cell-penetrating peptides (CPPs) are known to ease the cellular membrane transport and are used as vectors for low-molecular-weight drugs and drug carriers; of them, TAT peptides are the best-studied group. In this work, a TAT-peptide fragment (YGRKKRRQRRR) was for the first time conjugated to a platinum(IV) analog of oxaliplatin as a vehicle for membrane penetration. Solid-phase peptide synthesis and subsequent coupling with the platinum complex afforded mono- and difunctionalized conjugates, which were separated by preparative HPLC and characterized by analytical HPLC, ESI-MS, and (1)H NMR spectroscopy. Both conjugates are active in the low micromolar range in CH1 and SW480 human cancer cells, requiring much lower concentrations than the untargeted analogs for equal effects.
Collapse
Affiliation(s)
- Sergey Abramkin
- Institute of Inorganic Chemistry, University of Vienna, Vienna, Austria
| | | | | | | | | | | |
Collapse
|
23
|
Yi L, Abootorabi M, Wu YW. Semisynthesis of Prenylated Rab GTPases by Click Ligation. Chembiochem 2011; 12:2413-7. [DOI: 10.1002/cbic.201100466] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Indexed: 11/11/2022]
|
24
|
Zagermann J, Klein K, Merz K, Molon M, Metzler-Nolte N. Synthesis and Characterization of the Azido-Functionalized Ruthenocene Analogue [TpmRu(p-N3C6H4)Tp]Cl and Its Attachment to Biomolecules by Copper-Catalyzed Azide-Alkyne Cycloaddition. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100433] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
25
|
Lemke J, Metzler-Nolte N. Organometallic peptide NHC complexes of Cp∗Rh(III) and arene Ru(II) moieties from l-thiazolylalanine. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2010.12.044] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
26
|
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
| |
Collapse
|
27
|
Raszeja L, Maghnouj A, Hahn S, Metzler-Nolte N. A Novel Organometallic ReI Complex with Favourable Properties for Bioimaging and Applicability in Solid-Phase Peptide Synthesis. Chembiochem 2011; 12:371-6. [PMID: 21290535 DOI: 10.1002/cbic.201000576] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2010] [Indexed: 11/05/2022]
Affiliation(s)
- Lukasz Raszeja
- Lehrstuhl für Anorganische Chemie I-Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | | | | | | |
Collapse
|
28
|
Serpell CJ, Cookson J, Thompson AL, Beer PD. A dual-functional tetrakis-imidazoliummacrocycle for supramolecular assembly. Chem Sci 2011. [DOI: 10.1039/c0sc00511h] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
29
|
Gross A, Neukamm M, Metzler-Nolte N. Synthesis and cytotoxicity of a bimetallic ruthenocene dicobalt-hexacarbonyl alkyne peptide bioconjugate. Dalton Trans 2011; 40:1382-6. [DOI: 10.1039/c0dt01113d] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
30
|
Abstract
Transition metal complexes offer great potential as diagnostic and therapeutic agents, and a growing number of biological applications have been explored. To be effective, these complexes must reach their intended target inside the cell. Here we review the cellular accumulation of metal complexes, including their uptake, localization, and efflux. Metal complexes are taken up inside cells through various mechanisms, including passive diffusion and entry through organic and metal transporters. Emphasis is placed on the methods used to examine cellular accumulation, to identify the mechanism(s) of uptake, and to monitor possible efflux. Conjugation strategies that have been employed to improve the cellular uptake characteristics of metal complexes are also described.
Collapse
Affiliation(s)
- Cindy A. Puckett
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125
| | - Russell J. Ernst
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125
| | - Jacqueline K. Barton
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA 91125
| |
Collapse
|
31
|
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.
Collapse
Affiliation(s)
- Katrin Splith
- Institut für Biochemie, Universität Leipzig, Brüderstr. 34, D-04103, Leipzig, Germany
| | | | | | | | | | | | | |
Collapse
|
32
|
|
33
|
Kowalski K, Winter RF, Makal A, Pazio A, Woźniak K. The Synthesis, Structure, and FTIR Spectroelectrochemistry of W(CO)5Complexes of 4-Oxo-4-(2,5-dimethylazaferrocen-1′-yl)butanoic and 5-Oxo-5-(2,5-dimethylazaferrocen-1′-yl)pentanoic Acids. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900347] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
34
|
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
| |
Collapse
|
35
|
Lemke J, Pinto A, Niehoff P, Vasylyeva V, Metzler-Nolte N. Synthesis, structural characterisation and anti-proliferative activity of NHC gold amino acid and peptide conjugates. Dalton Trans 2009:7063-70. [PMID: 20449149 DOI: 10.1039/b906140a] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report the synthesis of new NHC gold(I) and NHC gold(III) halide, amino acid and dipeptide complexes. Transmetallation of the N-phenylalanine-substituted NHC silver complex 3 with Me2SAuCl yields the phenylalanine-NHC gold(I) conjugate 4a. Halide exchange with LiBr and oxidation of 4a with Br2 in CH2Cl2 yields the phenylalanine-NHC Au(I) and Au(III) bromides 4b and 4c, respectively. Reaction of N-Boc protected cysteine methyl ester (Boc-Cys-OMe) or the dipeptide N-Boc-Leu-Cys-OMe with the NHC gold chloride 6a yields the (NHC)Au-S complexed amino acid and dipeptide derivatives 8 and 9. The NHC gold(III) complexes 4c and 6c were characterised by single crystal X-ray analysis. All of the tested gold carbene complexes showed significant anti-tumor activity on the HeLa, HepG2 and HT-29 cancer cell lines. The best compounds show activity comparable to the well-known anti-cancer drug cisplatin. There seems to be no clear cut structure-activity relationship in the compounds tested, nor did we observe a dependence on the metal oxidation state or the different halide substituents. Given the ease of preparation, stability and high activity of the compounds described herein, it may be possible to design tumor-specific anti-cancer agents based on NHC gold amino acid conjugates in the future.
Collapse
Affiliation(s)
- Jessica Lemke
- Lehrstuhl für Anorganische Chemie I - Bioanorganische Chemie, Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, D-44801 Bochum, Germany
| | | | | | | | | |
Collapse
|
36
|
Gasser G, Neukamm MA, Ewers A, Brosch O, Weyhermüller T, Metzler-Nolte N. Synthesis and characterization of dicobalthexacarbonyl-alkyne derivatives of amino acids, peptides, and peptide nucleic acid (PNA) monomers. Inorg Chem 2009; 48:3157-66. [PMID: 19326929 DOI: 10.1021/ic900013r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of Co(2)(CO)(8) with alkyne-containing amino acids [1a: phenylalanine (Phe) and 1b: methionine (Met)], two suitably alkyne-functionalized derivatives of the neuropeptide enkephalin (Enk) [3: Ac-Enk-Prop and 5: Ac-Enk(Pgl)-NH(2) (Ac--Acetyl; Pgl--propargylglycine; Prop--propargylamine)], a thymine Peptide Nucleic Acid (T-PNA) monomer (7), and a PNA-like monomer (9) derivative gave the respective dicobalthexacarbonyl bioconjugates in very good yields. Two different sites for labeling of the biomolecules were successfully used: The organometallic moiety was reacted with the C-terminus of alkyne-containing amino acids, peptide or PNA thymine monomers, and alternatively the organometallic compound was complexed to an internal site in the peptide or PNA. To this end, a simple glycine was replaced by propargylglycine in peptides, and a new alkyne-containing PNA-like monomer, in which an alkyne chain replaces the nucleobase, was used for PNA chemistry. For the synthesis of the two alkyne-containing enkephalin derivatives 3 and 5, two different resins, namely sulfamylbutyryl and Rink amid, were used as they allow to selectively insert, on the solid phase, an alkyne moiety at the C-terminus and on a side-chain of a peptide sequence, respectively. The identity and constitution of all cobalt complexes were confirmed by different analytical methods (IR, FAB, ESI-MS, and NMR). Most notably, IR spectroscopy shows intensive bands in the 2100-2000 cm(-1) region because of the Co(2)(CO)(6) moiety. In both (1)H NMR spectra of the dicobalthexacarbonyl PNA monomer derivatives 8 and 10, all signals are doubled because of the cis-trans isomerism about the central amide bond. The X-ray structure of a dicobalthexacarbonyl phenylalanine derivative (2a) confirms the proposed composition of the bioconjugates and shows that, as anticipated, the alkyne group of 2a is no longer linear upon complexation in comparison to the alkyne group of the bioconjugate precursor 1a, as indicated by a C-C[triple bond]C angle of about 143 degrees in 2a. Moreover, the C[triple bond]C bond of 1a was elongated by about 0.15 A upon Co(2) coordination.
Collapse
Affiliation(s)
- Gilles Gasser
- Lehrstuhl für Anorganische Chemie I-Bioanorganische Chemie, Fakultät für Chemie and Biochemie, Ruhr-Universität Bochum, D-44801 Bochum, Germany
| | | | | | | | | | | |
Collapse
|
37
|
Microwave-assisted solid-phase synthesis, cellular uptake, and cytotoxicity studies of cymantrene–peptide bioconjugates. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.07.031] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
38
|
Zagermann J, Kuchta MC, Merz K, Metzler-Nolte N. Ruthenium-based bioconjugates: Synthesis and X-ray structure of the mixed ligand sandwich compound RuCpiPr(p-(CO2H)C6H4Tp) and labelling of amino acids and the neuropeptide enkephalin. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.09.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
39
|
Ott I, Kircher B, Bagowski C, Vlecken D, Ott E, Will J, Bensdorf K, Sheldrick W, Gust R. Modulierung der biologischen Eigenschaften von Aspirin durch Bildung eines Bioorganometallderivats. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200803347] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
40
|
Ott I, Kircher B, Bagowski C, Vlecken D, Ott E, Will J, Bensdorf K, Sheldrick W, Gust R. Modulation of the Biological Properties of Aspirin by Formation of a Bioorganometallic Derivative. Angew Chem Int Ed Engl 2009; 48:1160-3. [DOI: 10.1002/anie.200803347] [Citation(s) in RCA: 102] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
41
|
Atkin AJ, Williams S, Sawle P, Motterlini R, Lynam JM, Fairlamb IJS. μ2-Alkyne dicobalt(0)hexacarbonyl complexes as carbon monoxide-releasing molecules (CO-RMs): probing the release mechanism. Dalton Trans 2009:3653-6. [DOI: 10.1039/b904627p] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
42
|
N′Dongo HWP, Neundorf I, Merz K, Schatzschneider U. Synthesis, characterization, X-ray crystallography, and cytotoxicity of a cymantrene keto carboxylic acid for IR labelling of bioactive peptides on a solid support. J Inorg Biochem 2008; 102:2114-9. [DOI: 10.1016/j.jinorgbio.2008.07.019] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2008] [Revised: 07/30/2008] [Accepted: 07/31/2008] [Indexed: 11/15/2022]
|
43
|
Lemke J, Metzler‐Nolte N. The Synthesis of Ruthenium and Rhodium Complexes with Functionalized N‐Heterocyclic Carbenes and Their Use in Solid Phase Peptide Synthesis. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800366] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
44
|
Ott I, Kircher B, Dembinski R, Gust R. Alkyne hexacarbonyl dicobalt complexes in medicinal chemistry and drug development. Expert Opin Ther Pat 2008. [DOI: 10.1517/13543776.18.3.327] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
45
|
Sergeant CD, Ott I, Sniady A, Meneni S, Gust R, Rheingold AL, Dembinski R. Metallo-nucleosides: synthesis and biological evaluation of hexacarbonyl dicobalt 5-alkynyl-2′-deoxyuridines. Org Biomol Chem 2008; 6:73-80. [DOI: 10.1039/b713371e] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|