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Tolbatov I, Coletti C, Marrone A, Re N. Insight into the Electrochemical Reduction Mechanism of Pt(IV) Anticancer Complexes. Inorg Chem 2018; 57:3411-3419. [DOI: 10.1021/acs.inorgchem.8b00177] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Iogann Tolbatov
- Dipartimento di Farmacia, Università degli Studi “G. D’Annunzio” Chieti-Pescara, Via dei Vestini, I-66100 Chieti, Italy
| | - Cecilia Coletti
- Dipartimento di Farmacia, Università degli Studi “G. D’Annunzio” Chieti-Pescara, Via dei Vestini, I-66100 Chieti, Italy
| | - Alessandro Marrone
- Dipartimento di Farmacia, Università degli Studi “G. D’Annunzio” Chieti-Pescara, Via dei Vestini, I-66100 Chieti, Italy
| | - Nazzareno Re
- Dipartimento di Farmacia, Università degli Studi “G. D’Annunzio” Chieti-Pescara, Via dei Vestini, I-66100 Chieti, Italy
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Corinti D, Coletti C, Re N, Chiavarino B, Crestoni ME, Fornarini S. Cisplatin Binding to Biological Ligands Revealed at the Encounter Complex Level by IR Action Spectroscopy. Chemistry 2016; 22:3794-803. [DOI: 10.1002/chem.201504521] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Indexed: 02/03/2023]
Affiliation(s)
- Davide Corinti
- Dipartimento di Chimica e Tecnologie del Farmaco; Università degli Studi di Roma La Sapienza; P. le A. Moro 5 00185 Roma Italy), Fax
| | - Cecilia Coletti
- Dipartimento di Farmacia; Università G. D'Annunzio; Via dei Vestini 31 66100 Chieti Italy
| | - Nazzareno Re
- Dipartimento di Farmacia; Università G. D'Annunzio; Via dei Vestini 31 66100 Chieti Italy
| | - Barbara Chiavarino
- Dipartimento di Chimica e Tecnologie del Farmaco; Università degli Studi di Roma La Sapienza; P. le A. Moro 5 00185 Roma Italy), Fax
| | - Maria Elisa Crestoni
- Dipartimento di Chimica e Tecnologie del Farmaco; Università degli Studi di Roma La Sapienza; P. le A. Moro 5 00185 Roma Italy), Fax
| | - Simonetta Fornarini
- Dipartimento di Chimica e Tecnologie del Farmaco; Università degli Studi di Roma La Sapienza; P. le A. Moro 5 00185 Roma Italy), Fax
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Nakatake H, Ekimoto H, Aso M, Ogawa A, Yamaguchi A, Suemune H. Dialkyl bisphosphonate platinum(II) complex as a potential drug for metastatic bone tumor. Chem Pharm Bull (Tokyo) 2011; 59:710-3. [PMID: 21628905 DOI: 10.1248/cpb.59.710] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Bisphosphonates have high affinity for hydroxyapatite (HA), which is abundantly present in bone. Also, platinum complexes are known that have a wide spectrum of antitumor activities. The conjugate of bisphosphonate and a platinum complex might have HA affinity and antitumor activity, and become a drug for metastatic bone tumor. In this study, the authors synthesized platinum complexes that had dialkyl bisphosphonic acid as a ligand, and evaluated the possibility of the synthesized complexes as a drug for metastatic bone tumor. The synthesized dialkyl bisphosphonate platinum(II) complex was characterized, and its stability in an aqueous solution was also confirmed. The synthesized platinum complex showed higher HA affinity than other platinum complexes such as cisplatin and carboplatin in an experiment of adsorption to HA. In vitro, the platinum complex showed tumor growth inhibitory effect stronger than or equal to cisplatin, which is the most commonly used antitumor agent. Moreover, the platinum complex showed a bone absorption inhibitory effect on the osteoclast. These results suggest potential of dialkyl bisphosphonate platinum(II) complexes as a drug for metastatic bone tumor.
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Affiliation(s)
- Hidetoshi Nakatake
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3–1–1 Maidashi, Higashi-ku, Fukuoka, Japan.
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Leach MT, Henderson W, Wilkins AL, Lane JR, Fortney-Zirker RG, Turnbull MM, Nicholson BK. Platinum(II) phosphonate complexes derived from endo-8-camphanylphosphonic acid. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Murugavel R, Choudhury A, Walawalkar MG, Pothiraja R, Rao CNR. Metal Complexes of Organophosphate Esters and Open-Framework Metal Phosphates: Synthesis, Structure, Transformations, and Applications. Chem Rev 2008; 108:3549-655. [DOI: 10.1021/cr000119q] [Citation(s) in RCA: 278] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- R. Murugavel
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - Amitava Choudhury
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - M. G. Walawalkar
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - R. Pothiraja
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
| | - C. N. R. Rao
- Department of Chemistry, IIT-Bombay, Powai, Mumbai-400076, India, and Chemistry and Physics of Materials Unit, Jawaharlal Nehru Center of Advanced Scientific Research, Jakkur P.O., Bangalore-560 064, India
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Ozimiński WP, Garnuszek P, Bednarek E, Dobrowolski JC. The platinum complexes with histamine: Pt(II)(Hist)Cl2, Pt(II)(Iodo-Hist)Cl2 and Pt(IV)(Hist)2Cl2. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bali MS, Buck DP, Coe AJ, Day AI, Collins JG. Cucurbituril binding of trans-[{PtCl(NH3)2}2(µ-NH2(CH2)8NH2)]2+and the effect on the reaction with cysteine. Dalton Trans 2006:5337-44. [PMID: 17102858 DOI: 10.1039/b609881a] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The effect of encapsulation by cucurbiturils Q[7] and Q[8] on the rate of reaction of the anti-cancer dinuclear platinum complex trans-[{PtCl(NH3)2}2(micro-NH2(CH2)8NH2)]2+ with the model biological nucleophiles glutathione and cysteine has been examined by NMR spectroscopy. It was expected that the octamethylene linking chain would fold inside the cucurbituril host and hence position the reactive platinum centres close to the cucurbituril portals, and thereby, confer resistance to degradation by biological nucleophiles. The upfield shifts of the resonances from the methylene protons in the linking ligand observed in 1H NMR spectra of the platinum complex upon addition of either Q[7] or Q[8] indicate that the cucurbituril is positioned over the linking ligand, with the Pt(II) centres projecting out of the portal. Furthermore, the relative changes in chemical shift of the methylene resonances suggest that the octamethylene linking chain folds within the cucurbituril cavity, particularly in Q[8]. Simple molecular models, based on the observed relative changes in chemical shift, could be constructed that were consistent with the proposed folding of the linking ligand within the cucurbituril cavity. Encapsulation by Q[7] was found to reduce the rate of reaction of the platinum complex with glutathione. Encapsulation by Q[7] and Q[8] was also found to reduce the rate of reaction of the platinum complex with cysteine, with Q[8] slowing the reaction to a greater extent than Q[7], consistent with the inferred encapsulation geometries. Encapsulation of dinuclear platinum complexes within the cucurbituril cavity may provide a novel way of reducing the reactivity and degradation of these promising chemotherapeutic agents with blood plasma proteins.
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Affiliation(s)
- Mark S Bali
- School of Physical, Environmental and Mathematical Sciences, University College, University of New South Wales, Australian Defence Force Academy, Northcott Drive, Campbell, ACT 2600, Australia
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Wheate NJ, Buck DP, Day AI, Collins JG. Cucurbit[n]uril binding of platinum anticancer complexes. Dalton Trans 2005:451-8. [PMID: 16395444 DOI: 10.1039/b513197a] [Citation(s) in RCA: 151] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The encapsulation of cisplatin by cucurbit[7]uril (Q[7]) and multinuclear platinum complexes linked via a 4,4'-dipyrazolylmethane (dpzm) ligand by Q[7] and cucurbit[8]uril (Q[8]) has been studied by NMR spectroscopy and molecular modelling. The NMR studies suggest that some cisplatin binds in the cucurbituril cavity, while cis-[PtCl(NH3)2(H2O)]+ only binds at the portals. Alternatively, the dpzm-linked multinuclear platinum complexes are quantitatively encapsulated within the cavities of both Q[7] and Q[8]. Upon encapsulation, the non-exchangeable proton resonances of the multinuclear platinum complexes show significant upfield shifts in 1H NMR spectra. The H3/H3* resonances shift upfield by 0.08 to 0.55 ppm, the H5/H5* shift by 0.9 to 1.6 ppm, while the methylene resonances shift by 0.74 to 0.88 ppm. The size of the resonance shift is dependent on the cavity size of the encapsulating cucurbituril, with Q[7] encapsulation producing larger shifts than Q[8]. The upfield shifts of the dpzm resonances observed upon cucurbituril encapsulation indicate that the Q[7] or Q[8] is positioned directly over the dpzm linking ligand. The terminal platinum groups of trans-[{PtCl(NH3)2}2 mu-dpzm]2+ (di-Pt) and trans-[trans-{PtCl(NH3)2}2-trans-{Pt(dpzm)2(NH3)2}]4+ (tri-Pt) provide a barrier to the on and off movement of cucurbituril, resulting in binding kinetics that are slow on the NMR timescale for the metal complex. Although the dpzm ligand has relatively few rotamers, encapsulation by the larger Q[8] resulted in a more compact di-Pt conformation with each platinum centre retracted further into each Q[8] portal. Encapsulation of the hydrolysed forms of di-Pt and tri-Pt is considerably slower than for the corresponding Cl forms, presumably due to the high-energy cost of passing the +2 platinum centres through the cucurbituril portals. The results of this study suggest that cucurbiturils could be suitable hosts for the pharmacological delivery of multinuclear platinum complexes.
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Affiliation(s)
- Nial J Wheate
- School of Physical, Environmental and Mathematical Sciences, University College, University of New South Wales, Australian Defence Force Academy, Canberra, ACT 2600, Australia
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