1
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Sadeghian M, Gómez de Segura D, Golbon Haghighi M, Safari N, Lalinde E, Moreno MT. Ladder-like heteropolynuclear assemblies via cyanido bridges and platinum(II)-thallium(I) bonds: structural and photophysical properties. Dalton Trans 2024; 53:7788-7800. [PMID: 38623699 DOI: 10.1039/d4dt00674g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
We describe the mononuclear anionic cyanido-pentafluorophenyl complexes, (NBu4)[Pt(C^N)(C6F5)(CN)] [C^N = 7,8-benzoquinolate (bzq) 1, 2-(2,4-difluorophenyl)pyridinate (dfppy) 2] and the heteropolynuclear derivatives [{Pt(C^N)(C6F5)(CN)}Tl] (C^N = bzq 3, dfppy 4). These complexes were synthesized via a two-step modular synthesis by reaction of the corresponding potassium salts K[Pt(C^N)(C6F5)(CN)], prepared in situ from [Pt(C^N)(C6F5)(DMSO)] and KCN in acetone/H2O, with TlPF6. The structures of {[Pt(bzq)(C6F5)(CN)Tl]·THF}n (3·THF)n and [{Pt(dfppy)(C6F5)(CN)}Tl]4·dioxane [4]4·dioxane, determined by X-ray crystallography, confirm the presence of Pt(II)-Tl(I) bonds [2.9795(6)-3.0736(3) Å], but in the dfppy complex, the incorporation of dioxane, causes a significant structural change. Thus, whereas [3·THF]n achieves a bent-ladder shape extended double chain Tl⋯[Pt⋯Tl]n⋯Pt supported by lateral bridging [Pt](μ-CN)[Tl] ligands, [4]4·dioxane is formed by discrete Pt4Tl4 rectangular aggregates stabilized by [Pt](μ-CN)[Tl] and Pt⋯Tl bonds, which are connected by dioxane bridging molecules through Tl⋯O(dioxane) additional contacts. Solid state emissions are redshifted compared with the mononuclear derivatives 1 and 2 and have been assigned, with the support of theoretical calculations on Pt4Tl4 models, to metal-metal'-to-ligand charge transfer (3MM'LCT [d/s σ*(Pt, Tl) → π*(C^N)]) for 3 and mixed 3MM'LCT/3IL for 4. In fluid THF solution, the complexes are not emissive. At 77 K, 3 and 4 exhibit bright emissions attributed to the formation of bimetallic [{Pt(C^N)(C6F5)(CN)}Tl(THF)x], and anionic [Pt(C^N)(C6F5)(CN)]- fragments. Furthermore, both 3 and 4 exhibit a reversible mechanochromism with a red shift of the emissions upon crushing, suggesting some degree of shortening of metal-metal separation. Finally, complex 3 shows solvatochromic behavior with color/luminescence changes by treatment with a drop of MeOH, CH2Cl2, THF or Et2O, with shifts from 583 in 3-MeOH to 639 nm in 3-THF. However, 4 only demonstrates a bathochromic response to MeOH.
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Affiliation(s)
- Mina Sadeghian
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran.
- Departamento de Química, Instituto de Investigación en Química (IQUR), Complejo Científico Tecnológico, Universidad de La Rioja, 26006 Logroño, Spain.
| | - David Gómez de Segura
- Departamento de Química, Instituto de Investigación en Química (IQUR), Complejo Científico Tecnológico, Universidad de La Rioja, 26006 Logroño, Spain.
| | | | - Nasser Safari
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran.
| | - Elena Lalinde
- Departamento de Química, Instituto de Investigación en Química (IQUR), Complejo Científico Tecnológico, Universidad de La Rioja, 26006 Logroño, Spain.
| | - M Teresa Moreno
- Departamento de Química, Instituto de Investigación en Química (IQUR), Complejo Científico Tecnológico, Universidad de La Rioja, 26006 Logroño, Spain.
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2
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Wang FY, Yang LM, Wang SS, Lu H, Wang XS, Lu Y, Ni WX, Liang H, Huang KB. Cycloplatinated (II) Complex Based on Isoquinoline Alkaloid Elicits Ferritinophagy-Dependent Ferroptosis in Triple-Negative Breast Cancer Cells. J Med Chem 2024; 67:6738-6748. [PMID: 38526421 DOI: 10.1021/acs.jmedchem.4c00285] [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: 03/26/2024]
Abstract
The development and optimization of metal-based anticancer drugs with novel cytotoxic mechanisms have emerged as key strategies to overcome chemotherapeutic resistance and side effects. Agents that simultaneously induce ferroptosis and autophagic death have received extensive attention as potential modalities for cancer therapy. However, only a limited set of drugs or treatment modalities can synergistically induce ferroptosis and autophagic tumor cell death. In this work, we designed and synthesized four new cycloplatinated (II) complexes harboring an isoquinoline alkaloid C∧N ligand. On screening the in vitro activity of these agents, we found that Pt-3 exhibited greater selectivity of cytotoxicity, decreased resistance factors, and improved anticancer activity compared to cisplatin. Furthermore, Pt-3, which we demonstrate can initiate potent ferritinophagy-dependent ferroptosis, exhibits less toxic and better therapeutic activity than cisplatin in vivo. Our results identify Pt-3 as a promising candidate or paradigm for further drug development in cancer treatment.
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Affiliation(s)
- Feng-Yang Wang
- Department of Medicinal Chemistry, Shantou University Medical College, Shantou, Guangdong 515041, P. R. China
| | - Liang-Mei Yang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Shan-Shan Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Hui Lu
- Department of Medicinal Chemistry, Shantou University Medical College, Shantou, Guangdong 515041, P. R. China
| | - Xu-Sheng Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Yuan Lu
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Wen-Xiu Ni
- Department of Medicinal Chemistry, Shantou University Medical College, Shantou, Guangdong 515041, P. R. China
| | - Hong Liang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
| | - Ke-Bin Huang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmacy, Guangxi Normal University, Guilin, Guangxi 541004, P. R. China
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3
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Gómez de Segura D, Corral-Zorzano A, Alcolea E, Moreno MT, Lalinde E. Phenylbenzothiazole-Based Platinum(II) and Diplatinum(II) and (III) Complexes with Pyrazolate Groups: Optical Properties and Photocatalysis. Inorg Chem 2024; 63:1589-1606. [PMID: 38247362 PMCID: PMC10806813 DOI: 10.1021/acs.inorgchem.3c03532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/21/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024]
Abstract
Based on 2-phenylbenzothiazole (pbt) and 2-(4-dimethylaminophenyl)benzothiazole (Me2N-pbt), mononuclear [Pt(pbt)(R'2-pzH)2]PF6 (R'2-pzH = pzH 1a, 3,5-Me2pzH 1b, 3,5-iPr2pzH 1c) and diplatinum (PtII-PtII) [Pt(pbt)(μ-R'2pz)]2 (R'2-pz = pz 2a, 3,5-Me2pz 2b, 3,5-iPr2pz 2c) and [Pt(Me2N-pbt)(μ-pz)]2 (3a) complexes have been prepared. In the presence of sunlight, 2a and 3a evolve, in CHCl3 solution, to form the PtIII-PtIII complexes [Pt(R-pbt)(μ-pz)Cl]2 (R = H 4a, NMe2 5a). Experimental and computational studies reveal the negligible influence of the pyrazole or pyrazolate ligands on the optical properties of 1a-c and 2a,b, which exhibit a typical 3IL/3MLCT emission, whereas in 2c the emission has some 3MMLCT contribution. 3a displays unusual dual, fluorescence (1ILCT or 1MLCT/1LC), and phosphorescence (3ILCT) emissions depending on the excitation wavelength. The phosphorescence is lost in aerated solutions due to sensitization of 3O2 and formation of 1O2, whose determined quantum yield is also wavelength dependent. The phosphorescence can be reversibly photoinduced (365 nm, ∼ 15 min) in oxygenated THF and DMSO solutions. In 4a and 5a, the lowest electronic transitions (S1-S3) have mixed characters (LMMCT/LXCT/L'XCT 4a and LMMCT/LXCT/ILCT 5a) and they are weakly emissive in rigid media. The 1O2 generation property of complex 3a is successfully used for the photooxidation of p-bromothioanisol showing its potential application toward photocatalysis.
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Affiliation(s)
- David Gómez de Segura
- Departamento de Química, Instituto
de Investigación en Química (IQUR), Complejo Científico
Tecnológico, Universidad de La Rioja, Madre de Dios 53, Logroño 26006, Spain
| | - Andrea Corral-Zorzano
- Departamento de Química, Instituto
de Investigación en Química (IQUR), Complejo Científico
Tecnológico, Universidad de La Rioja, Madre de Dios 53, Logroño 26006, Spain
| | - Eduardo Alcolea
- Departamento de Química, Instituto
de Investigación en Química (IQUR), Complejo Científico
Tecnológico, Universidad de La Rioja, Madre de Dios 53, Logroño 26006, Spain
| | - M. Teresa Moreno
- Departamento de Química, Instituto
de Investigación en Química (IQUR), Complejo Científico
Tecnológico, Universidad de La Rioja, Madre de Dios 53, Logroño 26006, Spain
| | - Elena Lalinde
- Departamento de Química, Instituto
de Investigación en Química (IQUR), Complejo Científico
Tecnológico, Universidad de La Rioja, Madre de Dios 53, Logroño 26006, Spain
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4
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Vergaro V, Dell'Anna MM, Shahsavari HR, Baldassarre F, Migoni D, Mastrorilli P, Fanizzi FP, Ciccarella G. Synthesis of a light-responsive platinum curcumin complex, chemical and biological investigations and delivery to tumor cells by means of polymeric nanoparticles. NANOSCALE ADVANCES 2023; 5:5340-5351. [PMID: 37767039 PMCID: PMC10521244 DOI: 10.1039/d3na00200d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 08/04/2023] [Indexed: 09/29/2023]
Abstract
Platinum-based anticancer drugs are common in chemotherapy, but problems such as systemic toxicity and acquired resistance of some tumors hamper their clinical applications and therapeutic efficacy. It is necessary to synthesize Pt-based drugs and explore strategies to reduce side effects and improve pharmacokinetic profiles. Photo-responsive chemotherapeutics have emerged as an alternative strategy against several cancers, as photoactivation offers spatial selectivity and fewer side effects. Here, we combine chemical synthesis and nanotechnology to create a multifunctional platinum drug delivery system based on the novel metal complex [Pt(ppy)(curc)] (ppy = deprotonated 2-phenylpyridine, curc = deprotonated curcumin)] embodying the naturally occurring bioactive molecule, curcumin. The ultrasonication method coupled with the layer-by-layer technology was employed to produce nanocolloids, which demonstrated a good biocompatibility, higher solubility in aqueous solution, stability, large drug loading, and good biological activity in comparison with the free drug. In vitro release experiments revealed that the polymeric nanoformulation is relatively stable under physiological conditions (pH = 7.4 and 37 °C) but sensitive to acidic environments (pH = 5.6 and 37 °C) which would trigger the release of the loaded drug. Our approach modifies the bioavailability of this Pt-based drug increasing its therapeutic action in terms of both cytotoxic and anti-metastasis effects.
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Affiliation(s)
- Viviana Vergaro
- Biological and Environmental Sciences Department, UdR INSTM of Lecce University of Salento Via Monteroni 73100 Lecce Italy
- Institute of Nanotechnology, CNR NANOTEC, Consiglio Nazionale delle Ricerche Via Monteroni 73100 Lecce Italy
| | | | - Hamid R Shahsavari
- DICATECh, Politecnico di Bari via Orabona, 4 70125 Bari Italy
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS) Zanjan 45137-66731 Iran
| | - Francesca Baldassarre
- Biological and Environmental Sciences Department, UdR INSTM of Lecce University of Salento Via Monteroni 73100 Lecce Italy
- Institute of Nanotechnology, CNR NANOTEC, Consiglio Nazionale delle Ricerche Via Monteroni 73100 Lecce Italy
| | - Danilo Migoni
- Biological and Environmental Sciences Department, UdR INSTM of Lecce University of Salento Via Monteroni 73100 Lecce Italy
| | | | - Francesco Paolo Fanizzi
- Biological and Environmental Sciences Department, UdR INSTM of Lecce University of Salento Via Monteroni 73100 Lecce Italy
| | - Giuseppe Ciccarella
- Biological and Environmental Sciences Department, UdR INSTM of Lecce University of Salento Via Monteroni 73100 Lecce Italy
- Institute of Nanotechnology, CNR NANOTEC, Consiglio Nazionale delle Ricerche Via Monteroni 73100 Lecce Italy
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5
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Gómez de Segura D, Giménez N, Rincón-Montón D, Moreno MT, Pichel JG, López IP, Lalinde E. A new family of luminescent [Pt(pbt) 2(C 6F 5)L] n+ ( n = 1, 0) complexes: synthesis, optical and cytotoxic studies. Dalton Trans 2023; 52:12390-12403. [PMID: 37594064 DOI: 10.1039/d3dt01759a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Given the widely recognized bioactivity of 2-arylbenzothiazoles against tumor cells, we have designed a new family of luminescent heteroleptic pentafluorophenyl-bis(2-phenylbenzothiazolyl) PtIV derivatives, fac-[Pt(pbt)2(C6F5)L]n+ (n = 1, 0) [L = 4-Mepy 1, 4-pyridylbenzothiazole (pybt) 2, 4,4'-bipyridine (4,4'-bpy) 3, 1,2-bis-(4-pyridyl)ethylene (bpe) 4 (E/Z ratio: 90/10), 1,4-bis-(pyridyl)butadiyne (bpyb) 5, trifluoroacetate (-OCOCF3) 6] and a dinuclear complex [{Pt(pbt)2(C6F5)}2(μ-bpyb)](PF6)27, in which the trans ligand to the metalated C-(pbt) was varied to modify the optical properties and lipophilicity. Their photophysical properties were systematically studied through experimental and theoretical investigations, which were strongly dependent on the identity of the N-bonded ligand. Thus, complexes 1, 3 and 6 display, in different media, emission from the triplet excited states of primarily intraligand 3ILCT nature localized on the pbt ligand, while the emissions of 2, 5 and 7 were ascribed to a mixture of close 3IL'(N donor)/3ILCT(pbt) excited states, as supported by lifetime measurements and theoretical calculations. Irradiation of the initial E/Z mixture of 4 (15 min) led to a steady state composed of roughly 1 : 1.15 (E : Z) and this complex was not emissive at room temperature due to an enhanced intramolecular E to Z isomerization process of the 1,2-bis-(4-pyridyl)ethylene ligand. Complexes 1-3 and 6 showed excellent quantum yields for the generation of singlet oxygen in aerated MeCN solution with the values of ϕ(1O2) ranging from 0.66 to 0.86 using phenalenone as a reference. Cationic complexes 1-3 exhibited remarkable efficacy in the nanomolar range against A549 (lung carcinoma) and HeLa (cervix carcinoma) cell lines with notable selectivity relative to the non-tumorigenic BEAS-2B (bronchial epithelium) cells. In the A549 cell line, the neutral complex 6 showed low cytotoxicity (IC50: 29.40 μM) and high photocytotoxicity (IC50: 5.75) when cells were irradiated with blue light for 15 min. These complexes do not show evidence of DNA interaction.
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Affiliation(s)
- David Gómez de Segura
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - Nora Giménez
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - David Rincón-Montón
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - M Teresa Moreno
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - José G Pichel
- Lung Cancer and Respiratory Diseases Unit (CIBIR), Fundación Rioja Salud, 26006, Logroño, Spain.
- Spanish Biomedical Research Networking Centre in Respiratory Diseases (CIBERES), ISCIII, E-28029, Madrid, Spain
| | - Icíar P López
- Lung Cancer and Respiratory Diseases Unit (CIBIR), Fundación Rioja Salud, 26006, Logroño, Spain.
| | - Elena Lalinde
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
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6
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Sadeghian M, Gómez de Segura D, Golbon Haghighi M, Safari N, Lalinde E, Moreno MT. Luminescent Anionic Cyclometalated Organoplatinum (II) Complexes with Terminal and Bridging Cyanide Ligand: Structural and Photophysical Properties. Inorg Chem 2023; 62:1513-1529. [PMID: 36651903 PMCID: PMC9890487 DOI: 10.1021/acs.inorgchem.2c03668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We present the synthesis and characterization of two series of mononuclear heteroleptic anionic cycloplatinated(II) complexes featuring terminal cyanide ligand Q+[Pt(C^N)(p-MeC6H4)(CN)]- [C^N = benzoquinolate (bzq), Q+ = K+ 1 and NBu4+ 4; 2-phenylpyridinate (ppy), Q+ = K+ 2 and NBu4+ 5 and 2-(2,4- difluorophenyl)pyridinate (dfppy), Q+ = K+ 3 and NBu4+ 6] and a series of symmetrical binuclear complexes (NBu4)[Pt2(C^N)2(p-MeC6H4)2(μ-CN)] (C^N = bzq 7, ppy 8, dfppy 9). Compounds 5, 6, and 7-9 were further determined by single-crystal X-ray diffraction. There are no apparent intermolecular Pt···Pt interactions owing to the presence of bulky NBu4+ counterion. Slow crystallization of K[Pt(ppy)(p-MeC6H4)(CN)] 2 in acetone/hexane evolves with formation of yellow crystals, which were identified by single-crystal X-ray diffraction methods as the salt complex {[Pt(ppy)(p-MeC6H4)(CN)]2K3(OCMe2)4(μ-OCMe2)2}[Pt(ppy)(p-MeC6H4)(μ-CN)Pt(ppy)(p-MeC6H4)]·2acetone (10), featuring the binuclear anionic unit 8- neutralized by an hybrid inorganic-organometallic coordination polymer {[Pt(ppy)(p-MeC6H4)(CN)]2K3(OCMe2)4(μ-OCMe2)2}+. The photophysical properties of all compounds were recorded in powder, polystyrene film, and solution states with a quantum yield up to 21% for 9 in the solid state. All complexes displayed bright emission in rigid media, and for the interpretation of their absorption and emission properties, density functional theory (DFT) and time-dependent DFT calculations were applied.
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Affiliation(s)
- Mina Sadeghian
- Department
of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran,Departamento
de Química-Centro de Síntesis Química de La Rioja
(CISQ), Universidad de La Rioja, 26006 Logroño, Spain
| | - David Gómez de Segura
- Departamento
de Química-Centro de Síntesis Química de La Rioja
(CISQ), Universidad de La Rioja, 26006 Logroño, Spain
| | | | - Nasser Safari
- Department
of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
| | - Elena Lalinde
- Departamento
de Química-Centro de Síntesis Química de La Rioja
(CISQ), Universidad de La Rioja, 26006 Logroño, Spain,
| | - M. Teresa Moreno
- Departamento
de Química-Centro de Síntesis Química de La Rioja
(CISQ), Universidad de La Rioja, 26006 Logroño, Spain,
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7
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Zhang H, Liu C, Zhang J, Du CX, Zhang B. Highly Emissive Platinum(II) Complexes Bearing Bulky Phenyltriazolate Ligands: Synthesis, Structure, and Photophysics. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Han Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Chunmei Liu
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jian Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Chen-xia Du
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Bin Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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8
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Antiproliferative activity and DNA binding studies of cyclometalated complexes of platinum(II) containing 2-vinylpyridine. Biometals 2022; 35:617-627. [PMID: 35445906 DOI: 10.1007/s10534-022-00392-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/04/2022] [Indexed: 11/02/2022]
Abstract
The cytotoxic activity of four cyclometalated platinum(II) complexes [PtMe(vpy)(L)], containing 2-vinylpyridine (vpy) and the phosphine ligands (L) PMe2Ph (1a), PPh3 (1b), PMePh2 (1c), and P(c-Hex)3 (1d), were evaluated against human breast cancer (MDA-MB-231), human lung cancer (A549), human colon cancer (SW1116), and non-tumor epithelial breast (MCF-10 A) cell lines. The highest activity was found for 1c with IC50 values of 21.10 µM, 23.36 µM, and 12.96 µM, compared to cisplatin, which was 10.12 µM, 47.57 µM, and 19.50 µM against the A549, SW1116, and MDA-MB-231 cell lines, respectively. 1a-d showed a higher selectivity index (SI) than cisplatin. Docking studies confirmed interaction to the DNA minor groove for all complexes. Genotoxicity studies on 1c showed interactions with the genomic content of malignant cells. Compared with cisplatin as a positive control, a slight shift was found in the electrophoresis mobility, which was utilized further to study the direct interaction of 1c with DNA.
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9
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Gómez de Segura D, Lara R, Martínez-Junquera M, Lalinde E, Moreno MT. Luminescent 2-phenylbenzothiazole cyclometalated Pt II and Ir III complexes with chelating P^O ligands. Dalton Trans 2021; 51:274-285. [PMID: 34889913 DOI: 10.1039/d1dt03531b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two series of cyclometalated PtII and IrIII complexes with general formulas [Pt(pbt){PPh2(R)-κP,O}] (2a-2c) and [Ir(pbt)2{PPh2(R)-κP,O}] (3a-3c), where Hpbt is 2-phenylbenzothiazol and PPh2(R) is a diphenylphosphino donor functionalized deprotonated acid (R = o-C6H4CO2a, o-C6H4SO3b, CH2CH2CO2c) are presented. The structures of 1, 2a-2c, 3a and 3b were confirmed by single X-ray diffraction analyses, and the intermolecular interactions in 2a were studied using Hirshfeld surface analysis and non-covalent interaction (NCI) methods on its X-ray structure. Their photophysical properties were investigated by absorption and emission analyses [CH2Cl2, solid (298, 77 K) and doped polystyrene (PS) films], supported by TD-DFT calculations on 1, 2a-2c and 3a. The PtII complexes exhibit bright phosphorescence in the region 525-542 nm, ascribed to a mixed 3IL/3MLCT excited state with a predominant 3IL contribution. The IrIII derivatives (3a-3c) show orange photoluminescence (535-584 nm, 298 K), blue shifted at 77 K (527-560 nm), originated from the admixture of 3IL/3MLCT/3LLCT excited states. Interestingly, the photoluminescence quantum yields of the Pt complexes 2a-2c (ϕ = 46.5-66.5%) in PS films are remarkably higher than those of the corresponding iridium complexes (ϕ = 17.3-32%) and the precursor 1 (ϕ = 17%). The calculated 3MC-3IL/3MLCT energy gap for 2a and 3a accounts for the higher quantum yield of the Pt in relation to the Ir complex.
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Affiliation(s)
- David Gómez de Segura
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - Rebeca Lara
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - Mónica Martínez-Junquera
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - Elena Lalinde
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
| | - M Teresa Moreno
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
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10
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Zhang H, Liu C, Yin G, Du C, Zhang B. Efficiently luminescent heteroleptic neutral platinum(II) complexes based on N^O and N^P benzimidazole ligands. Dalton Trans 2021; 50:17319-17327. [PMID: 34787606 DOI: 10.1039/d1dt02720d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A series of new luminescent cycloplatinated(II) complexes (5a-8a and 5b-8b) with formulas Pt(bt)(N^O) and Pt(bt)(N^P) have been synthesized [bt = phenylbenzothiazole, N^O = (2-(1H-benzimidazole)-phenyl)diphenylphosphine oxide derivatives for 1a-4a and N^P = (2-(1H-benzimidazole)-phenyl)diphenylphosphine derivatives for 1b-4b]. The crystal structures of the complexes show distorted square planar geometries around the platinum centers. There are no obvious π-π and Pt-Pt intermolecular interactions in the crystal lattice due to the presence of sterically bulky ancillary ligands. Consequently, these complexes exhibit structured monomeric emissions in the range of 527-540 nm in CH2Cl2 solution. The photoluminescent quantum yields of Pt(bt)(N^O) (5a-8a) in CH2Cl2 solution at room temperature are higher than those of Pt(bt)(N^P) (5b-8b). The above result is well consistent with the crystal structural characteristics of the complexes. The structured emission with microsecond radiative lifetimes and the result of TD-DFT calculations indicate that the emissions of these complexes are mainly attributed to a mixed 3LC-MLCT state.
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Affiliation(s)
- Han Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Chunmei Liu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Guojie Yin
- School of Environmental Engineering and Chemistry, Luoyang Institute of Science and Technology, Luoyang 471023, PR China
| | - Chenxia Du
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
| | - Bin Zhang
- College of Chemistry, Zhengzhou University, Zhengzhou, 450001, PR China.
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11
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Lalinde E, Lara R, Gonzalo M, Moreno MT, Alfaro-Arnedo E, López IP, Larráyoz IM, Pichel JG. Investigation on Optical and Biological Properties of 2-(4-Dimethylaminophenyl)benzothiazole Based Cycloplatinated Complexes. Chemistry 2021; 27:15757-15772. [PMID: 34379830 PMCID: PMC9293083 DOI: 10.1002/chem.202102737] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Indexed: 11/08/2022]
Abstract
The optical and biological properties of 2-(4-dimethylaminophenyl)benzothiazole cycloplatinated complexes featuring bioactive ligands ([{Pt(Me 2 N-pbt)(C 6 F 5 )}L] [L = Me 2 N-pbtH 1 , p -dpbH (4-(diphenylphosphino)benzoic acid) 2 , o -dpbH (2-(diphenylphosphino)benzoic acid) 3) , [Pt(Me 2 N-pbt)( o -dpb)] 4 , [{Pt(Me 2 N-pbt)(C 6 F 5 )} 2 (µ-PR n P)] [PR 4 P = O(CH 2 CH 2 OC(O)C 6 H 4 PPh 2 ) 2 5 , PR 12 P = O{(CH 2 CH 2 O) 3 C(O)C 6 H 4 PPh 2 } 2 6 ] are presented. Complexes 1-6 display 1 ILCT and metal perturbed 3 ILCT dual emissions. The ratio between both bands is excitation dependent, accomplishing warm-white emissions for 2 , 5 and 6 . The phosphorescent emission is lost in aerated solutions owing to photoinduced electron transfer to 3 O 2 and formation of 1 O 2 , as confirmed in complexes 2 and 4 . They also exhibit photoinduced phosphorescence enhancement in non-degassed DMSO, due to local oxidation of DMSO by sensitized 1 O 2 , which causes a local degassing. Me 2 N-pbtH and the complexes exhibit specific accumulation in the Golgi apparatus although only 2 , 3 and 6 were active against A549 and HeLa cancer cell lines, being 6 highly selective respect to nontumoral cells. The potential photodynamic property of these complexes was demonstrated with complex 4 .
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Affiliation(s)
- Elena Lalinde
- Universidad de La Rioja, Departamento de Química, Madre de Dios, 53, 26006, Logroño, SPAIN
| | | | | | | | | | - Iciar P López
- CIBIR: Centro de Investigacion Biomedica de La Rioja, Lung Cancer Unit, SPAIN
| | - Ignacio M Larráyoz
- CIBIR: Centro de Investigacion Biomedica de La Rioja, Biomarkers and Molecular Signaling, SPAIN
| | - José G Pichel
- CIBIR: Centro de Investigacion Biomedica de La Rioja, Lung Cancer Unit, SPAIN
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12
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Ortega E, Pérez-Arnaiz C, Rodríguez V, Janiak C, Busto N, García B, Ruiz J. A 2-(benzothiazol-2-yl)-phenolato platinum(II) complex as potential photosensitizer for combating bacterial infections in lung cancer chemotherapy†. Eur J Med Chem 2021; 222:113600. [PMID: 34144355 DOI: 10.1016/j.ejmech.2021.113600] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/04/2021] [Accepted: 05/30/2021] [Indexed: 02/07/2023]
Abstract
Cancer and antibiotic resistance are two global health threats that usually hamper clinical chemotherapeutic efficacy. Particularly for lung cancer, bacterial infections frequently arise thereby complicating the course of cancer treatment. In this sense, three new neutral luminescent cycloplatinated(II) photosensitizers of the type [Pt(dmba)(L)] (dmba = N,N-dimethylbenzylamine-κN,κC; L = 2-(benzo[d]oxazol-2-yl)-phenolato-κN,κO1, 2-(benzo[d]thiazol-2-yl)-phenolato-κN,κO2, and 2-(1-methyl-1H-benzo[d]imidazole-2-yl)phenolato-κN,κO3) have been characterized and developed to potentially eliminate both resistant bacteria and lung cancer cells. The phototherapeutic effects of complex 2 have been evaluated using low doses of blue light irradiation. Complex 2 exerted promising photoactivity against pathogenic Gram-positive bacteria strains of clinical interest, displaying a phototoxic index (PI) of 15 for methicillin-resistant Staphylococcus aureus, one of the major microorganisms predominating lung infections. Likewise, the anticancer activity of 2 was also increased upon light irradiation in human lung A549 cancer cells (PI = 36). Further in vitro experiments with this platinum(II) complex suggest that ROS-generating photodynamic reactions were involved upon light irradiation, thus providing a reasonable mechanism for its dual anticancer and antibacterial activities.
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Affiliation(s)
- Enrique Ortega
- Departamento de Química Inorgánica, Universidad de Murcia and Institute for Bio-Health Research of Murcia (IMIB-Arrixaca), E-30071, Murcia, Spain
| | - Cristina Pérez-Arnaiz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos S/n, E-09001, Burgos, Spain
| | - Venancio Rodríguez
- Departamento de Química Inorgánica, Universidad de Murcia and Institute for Bio-Health Research of Murcia (IMIB-Arrixaca), E-30071, Murcia, Spain
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstr 1, 40225, Düsseldorf, Germany.
| | - Natalia Busto
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos S/n, E-09001, Burgos, Spain.
| | - Begoña García
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Plaza Misael Bañuelos S/n, E-09001, Burgos, Spain.
| | - José Ruiz
- Departamento de Química Inorgánica, Universidad de Murcia and Institute for Bio-Health Research of Murcia (IMIB-Arrixaca), E-30071, Murcia, Spain.
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13
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Martínez-Junquera M, Lalinde E, Moreno MT, Alfaro-Arnedo E, López IP, Larráyoz IM, Pichel JG. Luminescent cyclometalated platinum(ii) complexes with acyclic diaminocarbene ligands: structural, photophysical and biological properties. Dalton Trans 2021; 50:4539-4554. [PMID: 33729268 DOI: 10.1039/d1dt00480h] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Four new cyclometalated Pt(ii) complexes bearing acyclic diaminocarbene (ADC) ligands, [Pt(C^N)Cl{C(NHXyl)(NHR)}] [C^N = 2,6-difluorophenylpyridine (dfppy), phenylquinoline (pq); R = Pr 3a, 4a, CH2Ph 3b, 4b], were prepared by the nucleophilic attack on the isocyanide [Pt(C^N)Cl(CNXyl)] (C^N = dfppy 1, pq 2) by the corresponding amine RNH2 (R = Pr, CH2Ph). Complexes 3 show in their 1H NMR spectra in CDCl3 a notable concentration dependence, with a clear variation of the δH (NHXyl) signal, suggesting an assembling process implying donor-acceptor NHXylCl bonding, also supported by 1D-PGSE (Pulse Field Gradient Spin Echo) and 2D-DOSY (Diffusion Ordered Spectroscopy) NMR experiments in solution and X-ray diffraction studies. The intermolecular interactions in compounds 3a and 3b were studied by using Hirshfeld surface analysis and Non-Covalent Interaction (NCI) methods on their X-ray structures. Their photophysical properties were investigated by absorption and emission spectroscopies and also by TD-DFT calculations performed on 3a and 4b. These complexes show green (3) or orange (4) phosphorescence, attributed to a mixed 3IL/3MLCT excited state. The carbene ligand does not affect the emission maxima but it produces an increase of the quantum yields in relation to the isocyanide in the precursors. In fluid solutions, the emission is not concentration-dependent, but the complexes may show aggregation induced emission as detailed for complexes 3a and 4a. In addition, cytotoxicity studies in the human cell lines A549 (lung carcinoma) and HeLa (cervix carcinoma) showed good activity for these complexes and 3a, 3b and 4a exhibit a strong effect on DNA electrophoretic mobility. To the best of our knowledge, compounds 3 and 4 represent the first examples of cycloplatinated complexes bearing acyclic diamino carbenes with antiproliferative properties.
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Affiliation(s)
- Mónica Martínez-Junquera
- Departamento de Química-Centro de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain.
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14
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Shahsavari HR, Hu J, Chamyani S, Sakamaki Y, Babadi Aghakhanpour R, Salmon C, Fereidoonnezhad M, Mojaddami A, Peyvasteh P, Beyzavi H. Fluorinated Cycloplatinated(II) Complexes Bearing Bisphosphine Ligands as Potent Anticancer Agents. Organometallics 2020; 40:72-82. [PMID: 34334870 DOI: 10.1021/acs.organomet.0c00728] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A family of cationic cycloplatinated(II) complexes [Pt(dfppy)(P^P)]Cl, dfppy = 2-(2,4-difluorophenyl)pyridine, incorporating bisphosphine ligands, P^P = bis(diphenylphosphino)methane (1, dppm), 1,2-bis(diphenylphosphino)ethane (2, dppe) and 1,2-bis(diphenylphosphino)benzene (3, dppbz), was prepared. The complexes were characterized by means of several analytical and spectroscopic methods. These complexes displayed acceptable stability in the biological environments which was confirmed by NMR, HR ESI-MS and UV-vis techniques. The antiproliferative properties of these complexes were evaluated by National Cancer Institute (NCI) at National Institutes of Health (NIH) against 60 different human tumor cell lines such as leukemia, melanoma, lung, colon, brain, ovary, breast, prostate and kidney. These complexes showed higher cytotoxicity than cisplatin against a wide variety of cancer cell lines such as K-562 (leukemia), HOP-92 (lung), HCT-116 (colon), OVCAR-8 (ovarian), PC-3 (prostate), MDA-MB-468 (breast), and melanoma cancer cell lines. Complex 3 as the most potent compound in this study furnished an excellent anti-proliferative activity compared to the cisplatin against Hela, SKOV3, and MCF-7 cancer cell lines. The main mode of the interaction of 1-3 with DNA was also determined using molecular docking studies.
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Affiliation(s)
- Hamid R Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran; Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, United States
| | - Jiyun Hu
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, United States
| | - Samira Chamyani
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Yoshie Sakamaki
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, United States
| | - Reza Babadi Aghakhanpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Christopher Salmon
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, United States
| | - Masood Fereidoonnezhad
- Department of Medicinal Chemistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, 61357-15794, Iran
| | - Ayyub Mojaddami
- Department of Medicinal Chemistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, 61357-15794, Iran
| | - Parnian Peyvasteh
- Department of Medicinal Chemistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, 61357-15794, Iran
| | - Hudson Beyzavi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, United States
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15
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The history of organoplatinum chemistry in Iran: 40-year research. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01892-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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16
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Garbe S, Krause M, Klimpel A, Neundorf I, Lippmann P, Ott I, Brünink D, Strassert CA, Doltsinis NL, Klein A. Cyclometalated Pt Complexes of CNC Pincer Ligands: Luminescence and Cytotoxic Evaluation. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00015] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Simon Garbe
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie, Greinstraße 6, D-50939 Köln, Germany
| | - Maren Krause
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie, Greinstraße 6, D-50939 Köln, Germany
| | - Annika Klimpel
- Universität zu Köln, Department für Chemie, Institut für Biochemie, Zülpicher Strasse 47a, D-50674 Köln, Germany
| | - Ines Neundorf
- Universität zu Köln, Department für Chemie, Institut für Biochemie, Zülpicher Strasse 47a, D-50674 Köln, Germany
| | - Petra Lippmann
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraβe 55, D-38106 Braunschweig, Germany
| | - Ingo Ott
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraβe 55, D-38106 Braunschweig, Germany
| | - Dana Brünink
- Westfälische Wilhelms-Universität Münster, Institut für Festkörpertheorie and Center for Multiscale Theory and Computation, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Cristian A. Strassert
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, CiMIC, CeNTech, Heisenbergstraße 11, D-48149 Münster, Germany
| | - Nikos L. Doltsinis
- Westfälische Wilhelms-Universität Münster, Institut für Festkörpertheorie and Center for Multiscale Theory and Computation, Wilhelm-Klemm-Straße 10, 48149 Münster, Germany
| | - Axel Klein
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie, Greinstraße 6, D-50939 Köln, Germany
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17
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Payaz DÜ, Küçükbay FZ, Küçükbay H, Angeli A, Supuran CT. Synthesis carbonic anhydrase enzyme inhibition and antioxidant activity of novel benzothiazole derivatives incorporating glycine, methionine, alanine, and phenylalanine moieties. J Enzyme Inhib Med Chem 2019; 34:343-349. [PMID: 30734592 PMCID: PMC6327993 DOI: 10.1080/14756366.2018.1553040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 11/20/2018] [Accepted: 11/22/2018] [Indexed: 01/05/2023] Open
Abstract
Thirteen novel benzothiazole derivatives incorporating glycine, methionine, alanine, and phenylalanine were synthesised by facile acylation reactions through benzotriazole or DCC mediated reactions and their structures were identified by 1H-NMR, 13C-NMR, and FT-IR spectroscopic techniques and elemental analysis. The carbonic anhydrase (CA, EC 4.2.1.1) inhibitory activity of the new compounds was assessed against four human (h) isoforms, hCA I, hCA II, hCA V, and hCA XIII. Some of the synthesised compounds showed good in vitro carbonic anhydrase inhibitory properties, with inhibition constants in the micromolar level. The new amino acid benzothiazole conjugates found to be more effective against hCA V and hCA II inhibition. In vitro antioxidant activities of the novel compounds were determined by DPPH method. Most of the synthesised compounds showed moderate to low antioxidant activities compared to the control antioxidant compounds (BHA and α-tocopherol).
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Affiliation(s)
- Deniz Üzeroğlu Payaz
- Department of Chemistry, Faculty of Arts and Sciences, İnönü University, Malatya, Turkey;
| | - F. Zehra Küçükbay
- Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy, İnönü University, Malatya, Turkey;
| | - Hasan Küçükbay
- Department of Chemistry, Faculty of Arts and Sciences, İnönü University, Malatya, Turkey;
| | - Andrea Angeli
- Dipartimento Neurofarba, Sezione Di Scienze Farmaceutiche E Nutraceutiche e Laboratorio Di Chimica Bioinorganica, Universita` Degli Studi Di Firenze, Florence, Italy
| | - Claudiu T. Supuran
- Dipartimento Neurofarba, Sezione Di Scienze Farmaceutiche E Nutraceutiche e Laboratorio Di Chimica Bioinorganica, Universita` Degli Studi Di Firenze, Florence, Italy
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18
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Sakamaki Y, Ahmadi Mirsadeghi H, Fereidoonnezhad M, Mirzaei F, Moghimi Dehkordi Z, Chamyani S, Alshami M, Abedanzadeh S, Shahsavari HR, Beyzavi MH. trans-Platinum(II) Thionate Complexes: Synthesis, Structural Characterization, and in vitro Biological Assessment as Potent Anticancer Agents. Chempluschem 2019; 84:1525-1535. [PMID: 31943935 PMCID: PMC7108934 DOI: 10.1002/cplu.201900394] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 08/12/2019] [Indexed: 12/27/2022]
Abstract
A series of Pt(II) complexes trans-[Pt(PPh2 allyl)2 (κ1 -S-SR)2 ], 1, PPh2 allyl=allyldiphenylphosphine, SR=pyridine-2-thiol (Spy, 1 a), 5-(trifluoromethyl)-pyridine-2-thiol (SpyCF3 -5, 1 b), pyrimidine-2-thiol (SpyN, 1 c), benzothiazole-2-thiol (Sbt, 1 d), benzimidazole-2-thiol (Sbi, 1 e), were synthesized. They were characterized by NMR, HR ESI-MS, and X-ray crystallography. Treatment of human cancer cell lines (A549, SKOV3, MCF-7) with these complexes resulted in promising antitumor effects in comparison with cisplatin. These compounds showed suitable selectivity between tumorigenic and non-tumorigenic (MCF-10 A) cell lines. Analyses of cell cycle progression and apoptosis were conducted for 1 a, the most cytotoxic compound, to screen dose/time response and to study the antiproliferative mechanism. An electrophoresis mobility shift assay was performed to assess the direct interaction of 1 a with DNA and the strong genotoxic ability was indicated through the comet assay method.
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Affiliation(s)
- Yoshie Sakamaki
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, USA
| | - Hasti Ahmadi Mirsadeghi
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Masood Fereidoonnezhad
- Toxicology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
- Department of Medicinal Chemistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Faezeh Mirzaei
- Department of Medicinal Chemistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Zahra Moghimi Dehkordi
- Department of Medicinal Chemistry, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Samira Chamyani
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - Mia Alshami
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, USA
| | | | - Hamid R Shahsavari
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, USA
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan, 45137-66731, Iran
| | - M Hassan Beyzavi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas, 72701, USA
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19
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Template directed synthesis of half condensed Schiff base complexes of Cu(II) and Co(III): Structural and magnetic studies. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.02.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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Giménez N, Lalinde E, Lara R, Moreno MT. Design of Luminescent, Heteroleptic, Cyclometalated Pt
II
and Pt
IV
Complexes: Photophysics and Effects of the Cyclometalated Ligands. Chemistry 2019; 25:5514-5526. [DOI: 10.1002/chem.201806240] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Nora Giménez
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ)Universidad de La Rioja 26006 Logroño Spain
| | - Elena Lalinde
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ)Universidad de La Rioja 26006 Logroño Spain
| | - Rebeca Lara
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ)Universidad de La Rioja 26006 Logroño Spain
| | - M. Teresa Moreno
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ)Universidad de La Rioja 26006 Logroño Spain
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21
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Shahsavari HR, Giménez N, Lalinde E, Moreno MT, Fereidoonnezhad M, Babadi Aghakhanpour R, Khatami M, Kalantari F, Jamshidi Z, Mohammadpour M. Heterobimetallic PtII
-AuI
Complexes Comprising Unsymmetrical 1,1-Bis(diphenylphosphanyl)methane Bridges: Synthesis, Photophysical, and Cytotoxic Studies. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801297] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Nora Giménez
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ); Universidad de La Rioja; 26006 Logroño Spain
| | - Elena Lalinde
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ); Universidad de La Rioja; 26006 Logroño Spain
| | - M. Teresa Moreno
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ); Universidad de La Rioja; 26006 Logroño Spain
| | - Masood Fereidoonnezhad
- Toxicology Research Center; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
- Department of Medicinal Chemistry; Student Research Committee; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Mehri Khatami
- Department of Chemistry; Institute for Advanced Studies in Basic Sciences (IASBS); 45137-66731 Zanjan Iran
| | - Foroogh Kalantari
- Department of Medicinal Chemistry; Student Research Committee; Ahvaz Jundishapur University of Medical Sciences; Ahvaz Iran
| | - Zahra Jamshidi
- Student Research Committee; Chemistry & Chemical Engineering Research Center of Iran; 14968-13151 Tehran Iran
| | - Mozhdeh Mohammadpour
- Student Research Committee; Chemistry & Chemical Engineering Research Center of Iran; 14968-13151 Tehran Iran
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22
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Millán G, Giménez N, Lara R, Berenguer JR, Moreno MT, Lalinde E, Alfaro-Arnedo E, López IP, Piñeiro-Hermida S, Pichel JG. Luminescent Cycloplatinated Complexes with Biologically Relevant Phosphine Ligands: Optical and Cytotoxic Properties. Inorg Chem 2019; 58:1657-1673. [DOI: 10.1021/acs.inorgchem.8b03211] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gonzalo Millán
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Nora Giménez
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Rebeca Lara
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Jesús R. Berenguer
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - M. Teresa Moreno
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Elena Lalinde
- Departamento de Química, Centro de Síntesis Química de La Rioja, Universidad de La Rioja, 26006 Logroño, Spain
| | - Elvira Alfaro-Arnedo
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
| | - Icíar P. López
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
| | - Sergio Piñeiro-Hermida
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
| | - José G. Pichel
- Centro de Investigación Biomédica de La Rioja, Fundación Rioja Salud, 26006 Logroño, Spain
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23
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Puttock EV, Fradgley JD, Yufit DS, Williams JAG. A family of readily synthesised phosphorescent platinum(ii) complexes based on tridentate N^N^O-coordinating Schiff-base ligands. Dalton Trans 2019; 48:15012-15028. [DOI: 10.1039/c9dt03156a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tridentate ligands, easily synthesised by condensation reactions of simple starting materials, can be used to prepare Pt(ii) complexes that are luminescent in solution, emitting in the red or deep-red spectral region, according to the substituents.
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24
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Pandey P, Dwivedi N, Cosquer G, Yamashita M, Sunkari S. Tetranuclear Copper(II) Complexes with Simultaneous Phenoxo and Azido Bridges - Synthesis, Structural and Magnetic Studies. ChemistrySelect 2018. [DOI: 10.1002/slct.201801820] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Priyanka Pandey
- Department of Chemistry; Mahila MahaVidyalaya; Banaras Hindu University; Varanasi 221005 India
| | - Nidhi Dwivedi
- Department of Chemistry; Mahila MahaVidyalaya; Banaras Hindu University; Varanasi 221005 India
| | - Goulven Cosquer
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza-Aoba Sendai 980-8578 Japan
- 3 CREST; JST; 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
| | - Masahiro Yamashita
- Department of Chemistry; Graduate School of Science; Tohoku University; 6-3 Aramaki-Aza-Aoba Sendai 980-8578 Japan
- 3 CREST; JST; 4-1-8 Honcho, Kawaguchi Saitama 332-0012 Japan
- WPI Research Center; Advanced Institute for Materials Research Tohoku University; 2-1-1 Katahira, Aoba-ku Sendai 980-8577 Japan
- School of Materials Science and Engineering; Nankai University; Tianjin 300350 China
| | - Sailaja Sunkari
- Department of Chemistry; Mahila MahaVidyalaya; Banaras Hindu University; Varanasi 221005 India
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25
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Shahsavari HR, Babadi Aghakhanpour R, Nikravesh M, Ozdemir J, Golbon Haghighi M, Notash B, Beyzavi H. Highly Emissive Cycloplatinated(II) Complexes Obtained by the Chloride Abstraction from the Complex [Pt(ppy)(PPh3)(Cl)]: Employing Various Silver Salts. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00461] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Reza Babadi Aghakhanpour
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - Mahshid Nikravesh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS), Zanjan 45137-66731, Iran
| | - John Ozdemir
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
| | | | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University, Evin, Tehran 19839-69411, Iran
| | - Hudson Beyzavi
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, Arkansas 72701, United States
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26
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Stenger-Smith J, Chakraborty I, Mascharak PK. Cationic Au(I) complexes with aryl-benzothiazoles and their antibacterial activity. J Inorg Biochem 2018; 185:80-85. [PMID: 29800748 DOI: 10.1016/j.jinorgbio.2018.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2018] [Revised: 05/04/2018] [Accepted: 05/08/2018] [Indexed: 11/16/2022]
Abstract
Two cationic Au(I) complexes derived from aryl-benzothiazoles, namely [(PPh3)Au(pbt)](OTf) (1) and [(PPh3)Au(qbt)](OTf) (2) (where pbt = 2‑(pyridyl)benzothiazole and qbt = (quinolyl)benzothiazole, and OTf- = trifluoromethanesulfonate anion), have been synthesized and structurally characterized by X-ray crystallography. Both complexes exhibit strong antibacterial effects against Gram-negative bacteria such as Acinetobacter baumannii and Pseudomonas Aeruginosa. Results of examination of the reactions of 1 and 2 indicate that these cationic Au(I) complexes rapidly cross the bacterial membrane and exert drug action by disrupting cellular function(s) through binding of cytosolic thiol-containing peptides (such as glutathione) and proteins to the highly reactive (PPh3)Au+ intermediate formed upon in situ dissociation of pbt or qbt.
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Affiliation(s)
- Jenny Stenger-Smith
- Department of Chemistry, University of California, Santa Cruz, CA 95064, United States
| | - Indranil Chakraborty
- Department of Chemistry, University of California, Santa Cruz, CA 95064, United States
| | - Pradip K Mascharak
- Department of Chemistry, University of California, Santa Cruz, CA 95064, United States.
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27
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Fereidoonnezhad M, Ramezani Z, Nikravesh M, Zangeneh J, Golbon Haghighi M, Faghih Z, Notash B, Shahsavari HR. Cycloplatinated(ii) complexes bearing an O,S-heterocyclic ligand: search for anticancer drugs. NEW J CHEM 2018. [DOI: 10.1039/c8nj01332b] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cycloplatinated(ii) complexes containing the 2-mercaptopyridine N-oxide ligand were synthesized and characterized spectroscopically. The biological activities of these complexes were also investigated.
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Affiliation(s)
- Masood Fereidoonnezhad
- Cancer, Environmental and Petroleum Pollutants Research Center; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | - Zahra Ramezani
- Cancer, Environmental and Petroleum Pollutants Research Center; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | - Mahshid Nikravesh
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
| | - Jalalaldin Zangeneh
- Cancer, Environmental and Petroleum Pollutants Research Center; Department of Medicinal Chemistry, School of Pharmacy, Ahvaz Jundishapur University of Medical Sciences
- Ahvaz
- Iran
| | | | - Zahra Faghih
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz University of Medical Sciences
- Shiraz
- Iran
| | - Behrouz Notash
- Department of Chemistry, Shahid Beheshti University
- Tehran 19839-69411
- Iran
| | - Hamid R. Shahsavari
- Department of Chemistry, Institute for Advanced Studies in Basic Sciences (IASBS)
- Zanjan 45137-66731
- Iran
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