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Fandzloch M, Jędrzejewski T, Dobrzańska L, Esteban-Parra GM, Wiśniewska J, Paneth A, Paneth P, Sitkowski J. New organometallic ruthenium(ii) complexes with purine analogs - a wide perspective on their biological application. Dalton Trans 2021; 50:5557-5573. [PMID: 33908935 DOI: 10.1039/d0dt03974h] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Three half-sandwich organometallic ruthenium(ii) complexes containing purine analogs such as triazolopyrimidines of general formula [(η6-p-cym)Ru(L)Cl2], where p-cym represents p-cymene and L is 5,6,7-trimethyl-1,2,4-triazolo[1,5-a]pyrimidine (tmtp for 1), 5,7-diethyl-1,2,4-triazolo[1,5-a]pyrimidine (detp for 2) and 5-methyl-1,2,4-triazolo[1,5-a]pyrimidin-7(4H)-one (HmtpO for 3), have been synthesized and characterized by elemental analysis, infrared, multinuclear magnetic resonance spectroscopic techniques (1H, 13C, 15N), and single-crystal X-ray diffraction (for 1 and 2). All these complexes have been thoroughly screened for their in vitro cytotoxicity against MCF-7 and HeLa cell lines as well as L929 murine fibroblast cells, indicating [(η6-p-cym)Ru(HmtpO)Cl2] (3) as the most active representative against the HeLa cell line and simultaneously being 64-fold less toxic to normal L929 murine fibroblast cells than cisplatin. At the same time, 3 has shown antimetastatic activity comparable to NAMI-A against HeLa cells both after 24 and 48 h of treatment in a wound healing assay. In order to better understand the mechanism of anticancer action and differences in the cytotoxic activity of 1-3, the studies were expanded to determining their lipophilicity, the kinetic stability at pH 6.5-8, the effect on reactive oxygen species (ROS) production in HeLa cells and interactions with significant biomolecules (DNA and albumin) by using molecular docking and circular dichroism (CD) experiments. Furthermore, antiparasitic studies against L. braziliensis, L. infantum and T. cruzi reveal that the newly synthesized complexes 1-3 are very promising candidates which can compete with commercial antiparasitic drugs. Complex 3 in particular, on top of exhibiting a high antiparasitic effect (IC50 < 1 μM against two strains), reaches a selectivity index >1000.
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Affiliation(s)
- Marzena Fandzloch
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland.
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Kamal R, Kumar R, Kumar V, Bhardwaj JK, Saraf P, Kumar A, Pandit K, Kaur S, Chetti P, Beura S. Diacetoxy iodobenzene mediated regioselective synthesis and characterization of novel [1,2,4]triazolo[4,3-a]pyrimidines: apoptosis inducer, antiproliferative activities and molecular docking studies. J Biomol Struct Dyn 2020; 39:4398-4414. [PMID: 32552396 DOI: 10.1080/07391102.2020.1777900] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Prompt and regioselective synthesis of eleven novel [1,2,4]triazolo[4,3-a]pyrimidines 2a-2k, via intramolecular oxidative-cyclization of 2-(2-arylidenehydrazinyl)-4-methyl-6-phenylpyrimidine derivatives 1a-1k has been demonstrated here using diacetoxy iodobenzene (DIB) as inexpensive and ecofriendly hypervalent iodine(III) reagent in CH2Cl2 at room temperature. Regiochemistry of final product has been established by developing single crystal and studied X-ray crystallographic data for two derivatives 2c and 2h without any ambiguity. These prominent [1,2,4]triazolo[4,3-a]pyrimidines were evaluated for human osteosarcoma bone cancer (MG-63) and breast cancer (MCF-7) cell lines using MTT assay to find potent antiproliferative agent and also on testicular germ cells to find potent apoptotic inducing activities. All compounds show significant cytotoxicity, particularly 3-(2,4-dichlorophenyl)-5-methyl-7-phenyl-[1,2,4]triazolo[4,3-a]pyrimidine (2g) was found significant apoptotic inducing molecule, as well as the most potent cytotoxic agent against bone cancer (MG-63) and breast cancer (MCF-7) cell lines with GI50 value 148.96 µM and 114.3 µM respectively. Molecular docking studies has been carried out to see the molecular interactions of synthesized compounds with the protein thymidylate synthase (PBD ID: 2G8D).Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Raj Kamal
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ravinder Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | - Vipan Kumar
- Department of Chemistry, Kurukshetra University, Kurukshetra, Haryana, India
| | | | - Priyanka Saraf
- Department of Zoology, Kurukshetra University, Kurukshetra, Haryana, India
| | - Ajay Kumar
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Kritika Pandit
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Satwinderjeet Kaur
- Department of Botanical & Environmental Sciences, Guru Nanak Dev University, Amritsar, Punjab, India
| | - Prabhakar Chetti
- Department of Chemistry, National Institute of Technology (NIT), Kurukshetra, Haryana, India
| | - Satyajit Beura
- Department of Chemistry, National Institute of Technology (NIT), Kurukshetra, Haryana, India
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Attanzio A, D’Agostino S, Busà R, Frazzitta A, Rubino S, Girasolo MA, Sabatino P, Tesoriere L. Cytotoxic Activity of Organotin(IV) Derivatives with Triazolopyrimidine Containing Exocyclic Oxygen Atoms. Molecules 2020; 25:E859. [PMID: 32075253 PMCID: PMC7070731 DOI: 10.3390/molecules25040859] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/07/2020] [Accepted: 02/14/2020] [Indexed: 12/28/2022] Open
Abstract
In this study cytotoxicity of organotin(IV) compounds with 1,2,4-triazolo[1,5-a]pyrimidines, Me3Sn(5tpO) (1), n-Bu3Sn(5tpO) (2), Me3Sn(mtpO) (3), n-Bu3Sn(mtpO) (4), n-Bu3Sn(HtpO2) (5), Ph3Sn(HtpO2) (6) where 5HtpO = 4,5-dihydro-5-oxo-[1,2,4]triazolo-[1,5-a]pyrimidine, HmtpO = 4,7-dihydro-5-methyl-7-oxo-[1,2,4]triazolo-[1,5-a]pyrimidine, and H2tpO2 = 4,5,6,7-tetrahydro-5,7- dioxo-[1,2,4]triazolo-[1,5-a]-pyrimidine, was assessed on three different human tumor cell lines: HCT-116 (colorectal carcinoma), HepG2 (hepatocarcinoma) and MCF-7 (breast cancer). While 1 and 3 were inactive, compounds 2, 4, 5 and 6 inhibited the growth of the three tumor cell lines with IC50 values in the submicromolar range and showed high selectivity indexes towards the tumor cells (SI > 90). The mechanism of cell death triggered by the organotin(IV) derivatives, investigated on HCT-116 cells, was apoptotic, as evident from the externalization of phosphatidylserine to the cell surface, and occurred via the intrinsic pathway with fall of mitochondrial inner membrane potential and production of reactive oxygen species. While compound 6 arrested the cell progression in the G2/M cell cycle phase and increased p53 and p21 levels, compounds 2, 4 and 5 blocked cell duplication in the G1 phase without affecting the expression of either of the two tumor suppressor proteins. Compounds 1 and 2 were also investigated using single crystal X-ray diffraction and found to be, in both cases, coordination polymers forming 1 D chains based on metal-ligand interactions. Interestingly, for n-Bu3Sn(5tpO)(2) H-bonding interactions between 5tpO- ligands belonging to adjacent chains were also detected that resemble the "base-pairing" assembly and could be responsible for the higher biological activity compared to compound 1. In addition, they are the first example of bidentate N(3), O coordination for the 5HtpO ligand on two adjacent metal atoms.
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Affiliation(s)
- Alessandro Attanzio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Parco d’Orleans II, Viale delle Scienze-Pad., 16-90128 Palermo, Italy; (A.A.); (R.B.); (A.F.); (S.R.); (M.A.G.)
| | - Simone D’Agostino
- Department of Chemistry “G. Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy;
| | - Rosalia Busà
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Parco d’Orleans II, Viale delle Scienze-Pad., 16-90128 Palermo, Italy; (A.A.); (R.B.); (A.F.); (S.R.); (M.A.G.)
| | - Anna Frazzitta
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Parco d’Orleans II, Viale delle Scienze-Pad., 16-90128 Palermo, Italy; (A.A.); (R.B.); (A.F.); (S.R.); (M.A.G.)
| | - Simona Rubino
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Parco d’Orleans II, Viale delle Scienze-Pad., 16-90128 Palermo, Italy; (A.A.); (R.B.); (A.F.); (S.R.); (M.A.G.)
| | - Maria Assunta Girasolo
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Parco d’Orleans II, Viale delle Scienze-Pad., 16-90128 Palermo, Italy; (A.A.); (R.B.); (A.F.); (S.R.); (M.A.G.)
| | - Piera Sabatino
- Department of Chemistry “G. Ciamician”, University of Bologna, via F. Selmi 2, 40126 Bologna, Italy;
| | - Luisa Tesoriere
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Parco d’Orleans II, Viale delle Scienze-Pad., 16-90128 Palermo, Italy; (A.A.); (R.B.); (A.F.); (S.R.); (M.A.G.)
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Triazolopyrimidinium salts: discovery of a new class of agents for cancer therapy. Future Med Chem 2020; 12:387-402. [PMID: 32028797 DOI: 10.4155/fmc-2019-0317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Aim: The [1,2,4]triazolo[1,5-a]pyrimidine core is highly privileged in medicinal chemistry due to its versatile pharmacological activity profile. Recently, the search for novel anticancer agents has focused on [1,2,4]triazolo[1,5-a]pyrimidine derivatives. Results: Our hit functionalization has led to the discovery of new [1,2,4]triazolo[1,5-a]pyrimidinium salts with potential anticancer activity. Among a small library of molecules, compound 9 significantly inhibits cancer cell growth in a panel of in vitro models. Molecular docking studies and preliminary binding assay have displayed that 9 could directly bind the Src homology 2 (SH2) domain of STAT3 protein. Conclusion: Compound 9 is a novel promising lead compound that motivates additional evaluation of [1,2,4]triazolo[1,5-a]pyrimidinium salts as novel potential chemotherapeutics.
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Singh PK, Choudhary S, Kashyap A, Verma H, Kapil S, Kumar M, Arora M, Silakari O. An exhaustive compilation on chemistry of triazolopyrimidine: A journey through decades. Bioorg Chem 2019; 88:102919. [DOI: 10.1016/j.bioorg.2019.102919] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 03/29/2019] [Accepted: 04/08/2019] [Indexed: 02/07/2023]
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New copper(II) niflumate complexes with N-donor ligands: Synthesis, characterization and evaluation of anticancer potential against human cell lines. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2019.01.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Wiśniewska J, Fandzloch M, Łakomska I. The reduction of ruthenium(III) complexes with triazolopyrimidine ligands by ascorbic acid and mechanistic insight into their action in anticancer therapy. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.051] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Fischer G. Recent advances in 1,2,4-triazolo[1,5-a]pyrimidine chemistry. ADVANCES IN HETEROCYCLIC CHEMISTRY 2019. [DOI: 10.1016/bs.aihch.2018.10.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Jeremić MS, Radovanović MD, Bisceglie F, Kojić VV, Jelić R, Matović ZD. Rhodium(III) in a cage of the 1,3-propanediamine-N,N,N′-triacetate chelate: X-ray structure, solution equilibria, computational study and biological behavior. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.08.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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