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Nandhini S, Ranjani M, Thiruppathi G, Jaithanya YM, Kalaiarasi G, Ravi M, Prabusankar G, Malecki JG, Sundararaj P, Prabhakaran R. Organoruthenium metallocycle induced mutation in gld-1 tumor suppression gene in JK1466 strain and appreciable lifespan expansion. J Inorg Biochem 2024; 257:112593. [PMID: 38754275 DOI: 10.1016/j.jinorgbio.2024.112593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/18/2024]
Abstract
Four Ru(II) complexes (A2-A5) were synthesized from the reaction of coumarin Schiff base ligands (7da2-tsc, 7da3-mtsc, 7da4-etsc and 7da5-ptsc) with [RuHCl(CO)(PPh3)3]. The compounds were characterized by FT-IR, UV-Vis, 1H, 13C and 31P NMR, mass spectrometry and crystallographic analysis. Calf Thymus DNA (CT-DNA) binding studies revealed the intercalative mode of binding of the complexes with DNA. The results of Bovine serum albumin (BSA) binding studies established the interaction between BSA followed static quenching mechanism. The cytotoxic effects of the complexes and the ligands were evaluated against breast (MCF-7 and MDA-MB-231) and lung carcinoma cell lines (A549 and NCI-H460) using MTT assay. Complex A4 demonstrated potent cytotoxic effects on both breast and lung cancer cells. Furthermore, morphological observations and FACS analysis showed the decrease in cell density by complex A4 by induced morphological changes and apoptotic body formation and cell death in both breast and lung cancer cells. Moreover, the invertebrate model Caenorhabditis elegans was employed to assess the in vivo anticancer activity of compound A4. The findings indicated that the treatment with A4 reduced tumor development and significantly extended organismal lifespan by 64 % in the tumoral strain JK1466 without adversely affecting essential physiological functions of the worm. Additionally, A4 demonstrated an upregulation of two crucial antioxidant defense genes. Overall, these results suggested that the compound A4 can be a potential candidate with novel chemotherapeutic applications.
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Affiliation(s)
- S Nandhini
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - M Ranjani
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - G Thiruppathi
- Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - Y M Jaithanya
- Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - G Kalaiarasi
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - M Ravi
- Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India.
| | - G Prabusankar
- Department of Chemistry, Indian Institute of Technology, Hyderabad 502285, India
| | - J G Malecki
- Department of Crystallography, Silesia University, Szkolna 9, 40-006 Katowice, Poland
| | - P Sundararaj
- Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - R Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India.
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2
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Varma M, Ugale V, Shaukat J, Hollmann M, Shete P, Shravage B, Tayade S, Kumbhar A, Butcher R, Jani V, Sonavane U, Joshi R, Lokwani D, Kulkarni P. Novel alkyl-substituted 4-methoxy benzaldehyde thiosemicarbazones: Multi-target directed ligands for the treatment of Alzheimer's disease. Eur J Pharmacol 2023; 957:176028. [PMID: 37657740 DOI: 10.1016/j.ejphar.2023.176028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 08/14/2023] [Accepted: 08/25/2023] [Indexed: 09/03/2023]
Abstract
Alzheimer's disease (AD) is a devastating neurodegenerative disorder affecting mental ability and interrupts neurocognitive functions. Treating multifactorial conditions of AD with a single-target-directed drug is highly difficult. Thus, a multi-target-directed ligand (MTDL) development strategy has been developed as a promising approach for the treatment of AD. Herein, we have synthesized two novel thiosemicarbazones as MTDLs and reported their bioactivities against diverse neuropathological events involved in AD. In vitro studies revealed that both compounds exhibited promising anticholinesterase activity (AChE, IC50 = 15.98 μM, MZET and IC50 = 30.23 μM, MZMT), well supported by a detailed computational study. Both analogs have shown good thermodynamic behaviour and stability through interactions with characteristic amino acid residues throughout simulation of 100 ns against acetylcholinesterase enzyme. In an electrophysiology assay, these analogs have shown a characteristic inhibitory response against the GluN1-1a + GluN2B subunit of N-methyl-D-aspartate receptors. Pre-treatment of BV-2 microglial cells with MZET effectively decreased nitrite production compared to nitrite produced by lipopolysaccharide-treated cells alone. Further, the effect of MZMT and MZET on autophagy regulation was determined using stably transfected SH-SY5Y neuroblastoma cells. MZET significantly enhanced the autophagy flux in neuroblastoma cells. A significant decrease in copper-catalysed oxidation of amyloid-β in presence of synthesized thiosemicarbazones was also observed. Collectively, our findings indicated that these analogs have potential as effective anti-AD candidates and can be used as a prototype to develop more safer multi-targeted anti-AD drugs.
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Affiliation(s)
- Mokshada Varma
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, 411004, India
| | - Vinod Ugale
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, 411004, India; Department of Biochemistry I - Receptor Biochemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany; Department of Pharmaceutical Chemistry, R. C. Patel Institute of Pharmaceutical Education and Research, Shirpur, Maharashtra, 425405, India.
| | - Javeria Shaukat
- Department of Biochemistry I - Receptor Biochemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany
| | - Michael Hollmann
- Department of Biochemistry I - Receptor Biochemistry, Faculty of Chemistry and Biochemistry, Ruhr University Bochum, Bochum, Germany
| | - Padmaja Shete
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, 411004, India
| | - Bhupendra Shravage
- Developmental Biology Group, Agharkar Research Institute, Savitribai Phule Pune University, Pune, Maharashtra, 411004, India
| | - Sakharam Tayade
- Department of Chemistry, Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Avinash Kumbhar
- Department of Chemistry, Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Ray Butcher
- Department of Chemistry, Howard University, Washington, DC, 20059, USA
| | - Vinod Jani
- HPC Medical & Bioinformatics Applications Group, Centre for Development of Advanced Computing (C-DAC), Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Uddhavesh Sonavane
- HPC Medical & Bioinformatics Applications Group, Centre for Development of Advanced Computing (C-DAC), Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Rajendra Joshi
- HPC Medical & Bioinformatics Applications Group, Centre for Development of Advanced Computing (C-DAC), Savitribai Phule Pune University, Pune, Maharashtra, 411007, India
| | - Deepak Lokwani
- Rajashri Shahu College of Pharmacy, Buldana, Maharashtra, India
| | - Prasad Kulkarni
- Bioprospecting Group, Agharkar Research Institute, Savitribai Phule Pune University, G. G. Agharkar Road, Pune, Maharashtra, 411004, India.
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3
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Masuri S, Era B, Pintus F, Cadoni E, Cabiddu MG, Fais A, Pivetta T. Hydroxylated Coumarin-Based Thiosemicarbazones as Dual Antityrosinase and Antioxidant Agents. Int J Mol Sci 2023; 24:ijms24021678. [PMID: 36675192 PMCID: PMC9861830 DOI: 10.3390/ijms24021678] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/10/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
The design of novel antityrosinase agents appears extremely important in medical and industrial sectors because an irregular production of melanin is related to the insurgence of several skin-related disorders (e.g., melanoma) and the browning process of fruits and vegetables. Because melanogenesis also involves a nonenzymatic oxidative process, developing dual antioxidant and antityrosinase agents is advantageous. In this work, we evaluated the antioxidant and tyrosinase inhibition ability of two new bishydroxylated and two new monohydroxylated derivatives of (1E)-2-(1-(2-oxo-2H-chromen-3-yl)ethylidene)hydrazine-1-carbothioamide (T1) using different experimental and computational approaches. The study was also carried out on another monohydroxylated derivative of T1 for comparison. Interestingly, these molecules have more potent tyrosinase-inhibitory properties than the reference compound, kojic acid. Moreover, the antioxidant activity appears to be influenced according to the number and substitution pattern of the hydroxyl groups. The safety of the compounds without (T1), with one (T3), and with two (T6) hydroxyl groups, has also been assessed by studying their cytotoxicity on melanocytes. These results indicate that (1E)-2-(1-(2-oxo-2H-chromen-3-yl)ethylidene)hydrazine-1-carbothioamide and its hydroxylated derivatives are promising molecules for further drug development studies.
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Affiliation(s)
- Sebastiano Masuri
- Department of Chemical and Geological Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
| | - Benedetta Era
- Department of Life and Environmental Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
| | - Francesca Pintus
- Department of Life and Environmental Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
| | - Enzo Cadoni
- Department of Chemical and Geological Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
| | - Maria Grazia Cabiddu
- Department of Chemical and Geological Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
| | - Antonella Fais
- Department of Life and Environmental Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
- Correspondence: (A.F.); (T.P.)
| | - Tiziana Pivetta
- Department of Chemical and Geological Sciences, University of Cagliari, S.P. 8 km 0.700, 09042 Cagliari, Italy
- Correspondence: (A.F.); (T.P.)
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4
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Guin PS, Roy S. Recently Reported Ru-Metal Organic Coordination Complexes and Their Application (A Review). RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222080242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Kalaiarasi G, Mohamed Subarkhan M, Fathima Safwana C, Sruthi S, Sathiya Kamatchi T, Keerthana B, Ashok Kumar S. New organoruthenium(II) complexes containing N, X-donor (X = O, S) heterocyclic chelators: Synthesis, spectral characterization, in vitro cytotoxicity and apoptosis investigation. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120863] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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6
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Rostán S, Alvarez N, Veiga N, Otero L, Mahler G. New preparation protocols for coumarin-thiosemicarbazone hybrids: Solid state characterization, and in silico/NMR studies of the Z/E isomerization equilibria in solution. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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7
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Husain A, Balushi K A, Akhtar MJ, Khan SA. Coumarin linked heterocyclic hybrids: A promising approach to develop multi target drugs for Alzheimer's disease. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130618] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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8
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Gomathi K, Haribabu J, Saranya S, Gayathri D, Jeyalakshmi K, Sendilvelan S, Echeverria C, Karvembu R. Effective inhibition of insulin amyloid fibril aggregation by nickel(II) complexes containing heterocyclic thiosemicarbazones. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2021; 50:1069-1081. [PMID: 34455461 DOI: 10.1007/s00249-021-01566-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 06/07/2021] [Accepted: 07/20/2021] [Indexed: 12/19/2022]
Abstract
The sensitivity of protein molecular structures makes them susceptible to aggregation in conditions unfavorable for the maintenance of their native folds. The aggregation of proteins leads to many disorders, but the inhibition of amyloid fibril formation using metal-containing small molecules is gaining popularity. Herein we report the effect of nickel(II) complexes (N1, N2, N3, and N4) bearing thiosemicarbazones on the inhibition of amyloid fibril formation by insulin. The interactions of the complexes with amyloid fibrils were investigated using various biophysical techniques, including light scattering, intrinsic fluorescence assay, thioflavin T (ThT) assay, and Fourier transform-infrared spectroscopy. The results revealed that the phenyl-substituted N3 was an efficient inhibitor of amyloid fibril formation and maintained the insulin in its native structure despite conditions promoting fibrillation. Nickel(II) complexes containing indole based thiosemicarbazones were efficient in inhibiting the amyloid fibril formation and maintaining the insulin in its native structure in unfavorable conditions.
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Affiliation(s)
- Kannayiram Gomathi
- Department of Mechanical Engineering, Dr. MGR Educational and Research Institute, Maduravoyal, Chennai, 600095, India.
| | - Jebiti Haribabu
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India.,Facultad de Medicina, Universidad de Atacama, Copayapu 485, 1531772, Copiapo, Chile
| | - Sivaraj Saranya
- Department of Mechanical Engineering, Dr. MGR Educational and Research Institute, Maduravoyal, Chennai, 600095, India.,Multi Organ Transplant Program, University Health Network, Toronto, Canada
| | - Dasararaju Gayathri
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai, 600025, India
| | - Kumaramangalam Jeyalakshmi
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India.,Department of Chemistry, M. Kumarasamy College of Engineering, Karur, 639113, India
| | - Subramanian Sendilvelan
- Department of Mechanical Engineering, Dr. MGR Educational and Research Institute, Maduravoyal, Chennai, 600095, India
| | - Cesar Echeverria
- Facultad de Medicina, Universidad de Atacama, Copayapu 485, 1531772, Copiapo, Chile
| | - Ramasamy Karvembu
- Department of Chemistry, National Institute of Technology, Tiruchirappalli, 620015, India.
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9
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Mzezewa SC, Omoruyi SI, Zondagh LS, Malan SF, Ekpo OE, Joubert J. Design, synthesis, and evaluation of 3,7-substituted coumarin derivatives as multifunctional Alzheimer's disease agents. J Enzyme Inhib Med Chem 2021; 36:1607-1621. [PMID: 34281458 PMCID: PMC8291583 DOI: 10.1080/14756366.2021.1913137] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Multitarget directed ligands (MTDLs) are emerging as promising treatment options for Alzheimer's disease (AD). Coumarin derivatives serve as a good starting point for designing MTDLs due to their inherent inhibition of monoamine oxidase (MAO) and cholinesterase enzymes, which are complicit in AD's complex pathophysiology. A preliminary series of 3,7-substituted coumarin derivatives were synthesised and evaluated for enzyme inhibitory activity, cytotoxicity as well as neuroprotective ability. The results indicated that the compounds are weak cholinesterase inhibitors with five compounds demonstrating relatively potent inhibition and selectivity towards MAO-B with IC50 values between 0.014 and 0.498 hx00B5;µM. Significant neuroprotective effects towards MPP+-compromised SH-SY5Y neuroblastoma cells were also observed, with no inherent cytotoxicity at 10 µM for all compounds. The overall results demonstrated that substitution of the phenylethyloxy moiety at the 7-position imparted superior general activity to the derivatives, with the propargylamine substitution at the 3-position, in particular, displaying the best MAO-B selectivity and neuroprotection.
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Affiliation(s)
- Sheunopa C Mzezewa
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Sylvester I Omoruyi
- Department of Medical Biosciences, University of the Western Cape, Bellville, South Africa
| | - Luke S Zondagh
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Sarel F Malan
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
| | - Okobi E Ekpo
- Department of Medical Biosciences, University of the Western Cape, Bellville, South Africa
| | - Jacques Joubert
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of the Western Cape, Bellville, South Africa
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10
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Varma M, Shravage B, Tayade S, Kumbhar A, Butcher R, Jani V, Sonavane U, Joshi R, Kulkarni PP. A simple methyl substitution of 3-acetylcoumarin thiosemicarbazone enhances cellular autophagy flux, reduces inflammation and ameliorates rough eye phenotype in the Drosophila model of Alzheimer's disease. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130265] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Stepanenko I, Babak MV, Spengler G, Hammerstad M, Popovic-Bijelic A, Shova S, Büchel GE, Darvasiova D, Rapta P, Arion VB. Coumarin-Based Triapine Derivatives and Their Copper(II) Complexes: Synthesis, Cytotoxicity and mR2 RNR Inhibition Activity. Biomolecules 2021; 11:biom11060862. [PMID: 34207929 PMCID: PMC8230303 DOI: 10.3390/biom11060862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 05/21/2021] [Accepted: 05/27/2021] [Indexed: 02/03/2023] Open
Abstract
A series of thiosemicarbazone-coumarin hybrids (HL1-HL3 and H2L4) has been synthesised in 12 steps and used for the preparation of mono- and dinuclear copper(II) complexes, namely Cu(HL1)Cl2 (1), Cu(HL2)Cl2 (2), Cu(HL3)Cl2 (3) and Cu2(H2L4)Cl4 (4), isolated in hydrated or solvated forms. Both the organic hybrids and their copper(II) and dicopper(II) complexes were comprehensively characterised by analytical and spectroscopic techniques, i.e., elemental analysis, ESI mass spectrometry, 1D and 2D NMR, IR and UV–vis spectroscopies, cyclic voltammetry (CV) and spectroelectrochemistry (SEC). Re-crystallisation of 1 from methanol afforded single crystals of copper(II) complex with monoanionic ligand Cu(L1)Cl, which could be studied by single crystal X-ray diffraction (SC-XRD). The prepared copper(II) complexes and their metal-free ligands revealed antiproliferative activity against highly resistant cancer cell lines, including triple negative breast cancer cells MDA-MB-231, sensitive COLO-205 and multidrug resistant COLO-320 colorectal adenocarcinoma cell lines, as well as in healthy human lung fibroblasts MRC-5 and compared to those for triapine and doxorubicin. In addition, their ability to reduce the tyrosyl radical in mouse R2 protein of ribonucleotide reductase has been ascertained by EPR spectroscopy and the results were compared with those for triapine.
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Affiliation(s)
- Iryna Stepanenko
- Institute of Inorganic Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
- Correspondence: (I.S.); (V.B.A.)
| | - Maria V. Babak
- Drug Discovery Lab, Department of Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Hong Kong SAR 518057, China;
| | - Gabriella Spengler
- Department of Medical Microbiology, Albert Szent-Györgyi Health Center and Faculty of Medicine, University of Szeged, Semmelweis utca 6, H-6725 Szeged, Hungary;
| | - Marta Hammerstad
- Section for Biochemistry and Molecular Biology, Department of Biosciences, University of Oslo, P.O. Box 1066, Blindern, NO-0316 Oslo, Norway;
| | - Ana Popovic-Bijelic
- Faculty of Physical Chemistry, University of Belgrade, Studentski trg 12–16, 11158 Belgrade, Serbia;
| | - Sergiu Shova
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iasi, Romania;
| | | | - Denisa Darvasiova
- Faculty of Chemical and Food Technology, Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovakia; (D.D.); (P.R.)
| | - Peter Rapta
- Faculty of Chemical and Food Technology, Institute of Physical Chemistry and Chemical Physics, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovakia; (D.D.); (P.R.)
| | - Vladimir B. Arion
- Institute of Inorganic Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
- Correspondence: (I.S.); (V.B.A.)
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12
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Kumar S, Tyagi YK, Kumar M, Kumar S. Synthesis of novel 4-methylthiocoumarin and comparison with conventional coumarin derivative as a multi-target-directed ligand in Alzheimer's disease. 3 Biotech 2020; 10:509. [PMID: 33184595 PMCID: PMC7644673 DOI: 10.1007/s13205-020-02481-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/12/2020] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is a multifactorial disorder characterized by cognitive deficit and memory loss. The pathological feature of the disease involves β-amyloid senile plaques, reduced levels of acetylcholine neurotransmitter, oxidative stress and neurofibrillary tangles formation within the brain of AD patients. The present study aims to screen the inhibitory activity of newly synthesized and existing novel 4-methylthiocoumarin derivative against acetylcholinesterase, butyrylcholinesterase, BACE1, β-amyloid aggregation and oxidative stress involved in the AD pathogenesis. The in vitro assays used in this study were Ellman's assay, FRET assays, Thioflavin T, transmission electron microscopy, circular dichroism, FRAP, and TEAC. Molecular docking and dynamics studies were performed to correlate the results. C3 and C7 (thiocoumarin derivatives) were found to be the most potent inhibitors of acetylcholinesterase (IC50-5.63 µM) and butyrylcholinesterase (IC50-3.40 µM) using Ellman's assays. Enzyme kinetic studies showed that C3 and C7 compounds followed by the mixed mode of inhibition using LB plot. C3 also moderately inhibited the BACE1 using FRET assay. C3 inhibited the fibrillization of β-amyloid peptides in a concentration-dependent manner as observed by Thioflavin T, TEM studies and Circular dichroism data. Molecular modeling studies were performed to understand the probable mode of binding of C3 and C7 in the binding pocket of acetylcholinesterase, butyrylcholinesterase, BACE1 and amyloid β peptides. This indicates the important role of hydrophobic interactions between C3 and acetylcholinesterase. C3 also exhibited significant antioxidant potential by FRAP and TEAC assays. Hence, C3 might serve as a promising lead for developing novel multi target-directed ligand for the treatment of AD.
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Affiliation(s)
- Shivani Kumar
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Sector 16C, New Delhi, 110078 India
| | - Yogesh Kumar Tyagi
- University School of Basic and Applied Sciences, Guru Gobind Singh Indraprastha University, Dwarka, Sector 16C, New Delhi, 110078 India
| | - Manoj Kumar
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, 110029 India
| | - Suresh Kumar
- University School of Biotechnology, Guru Gobind Singh Indraprastha University, Dwarka, Sector 16C, New Delhi, 110078 India
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13
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Badar A, Arif Z, Qais FA, Islam SN, Alam K. Carbamylation of human serum albumin generates high-molecular weight aggregates: fine characterization by multi-spectroscopic methods and electron microscopy. Int J Biol Macromol 2020; 164:2380-2388. [PMID: 32795577 DOI: 10.1016/j.ijbiomac.2020.08.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 07/08/2020] [Accepted: 08/08/2020] [Indexed: 02/08/2023]
Abstract
Carbamylation is the non-enzymatic reaction between isocyanic acid and macromolecules (mainly proteins) which results in carbamylation-derived products (CDPs) generation, wherein the macromolecules show altered structure and function. In this study, we examined the modifications caused in human serum albumin (HSA) upon interaction with potassium cyanate (KCNO). HSA was incubated with varying concentrations of KCNO for 6 h at 37 °C. The resultant product was characterized by biochemical and biophysical techniques. Among other changes, the carbamylated-HSA showed homocitrulline generation (LC-MS), increase in mass (DLS), and amyloidogenic aggregate formation (Congo red, SEM, TEM). The Gibb's free energy was calculated to be -2.91 to -3.95 kcal mol-1, suggesting that the binding was spontaneous and energetically favourable. The results indicate that in chronic kidney disease patients, elevated levels of isocyanic acid (formed from urea) may modify the albumin structure and lead to its conversion into amyloidogenic aggregates, thus accelerating kidney damage.
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Affiliation(s)
- Asim Badar
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Zarina Arif
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Faizan Abul Qais
- Department of Agricultural Microbiology, Faculty of Agricultural Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Shireen Naaz Islam
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - Khursheed Alam
- Department of Biochemistry, Faculty of Medicine, Jawaharlal Nehru Medical College, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
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14
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Sagnou M, Mavroidi B, Kaminari A, Boukos N, Pelecanou M. Novel Isatin Thiosemicarbazone Derivatives as Potent Inhibitors of β-Amyloid Peptide Aggregation and Toxicity. ACS Chem Neurosci 2020; 11:2266-2276. [PMID: 32598129 DOI: 10.1021/acschemneuro.0c00208] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Inhibition of β-amyloid peptide (Αβ) aggregation in Alzheimer's disease (AD) is among the therapeutic approaches against AD which still attracts scientific research interest. In the search for compounds that interact with Aβ and disrupt its typical aggregation course toward oligomeric or polymeric toxic assemblies, small organic molecules of natural origin, combining low molecular weight (necessary blood-brain barrier penetration) and low toxicity (necessary for pharmacological application), are greatly sought after. Isatin (1H-indoline-2,3-dione), a natural endogenous indole, and many of its derivatives exhibit a wide spectrum of neuropharmacological and chemotherapeutic properties. The synthesis and biological evaluation of four new isatins as inhibitors of Aβ aggregation is presented herein. In these derivatives, the N-phenyl thiosemicarbazide moiety is joined at the 3-oxo position of isatin through Schiff base formation, and substitutions are present at the indole nitrogen and position 5 of the isatin core. Biophysical studies employing circular dichroism, thioflavin T fluorescence assay, and transmission electron microscopy reveal the potential of the isatin thiosemicarbazones (ITSCs) to alter the course of Αβ aggregation, with two of the derivatives exhibiting outstanding inhibition of the aggregation process, preventing completely the formation of amyloid fibrils. Furthermore, in in vitro studies in primary neuronal cell cultures, the ITSCs were found to inhibit the Aβ-induced neurotoxicity and reactive oxygen species production at concentrations as low as 1 μM. Taken all together, the novel ITSCs can be considered as privileged structures for further development as potential AD therapeutics.
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Affiliation(s)
- Marina Sagnou
- Institute of Biosciences & Applications, National Centre for Scientific Research “Demokritos”, 15310 Athens, Greece
| | - Barbara Mavroidi
- Institute of Biosciences & Applications, National Centre for Scientific Research “Demokritos”, 15310 Athens, Greece
| | - Archontia Kaminari
- Institute of Biosciences & Applications, National Centre for Scientific Research “Demokritos”, 15310 Athens, Greece
| | - Nikos Boukos
- Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research “Demokritos”, 15310 Athens, Greece
| | - Maria Pelecanou
- Institute of Biosciences & Applications, National Centre for Scientific Research “Demokritos”, 15310 Athens, Greece
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Matesanz AI, Caballero AB, Lorenzo C, Espargaró A, Sabaté R, Quiroga AG, Gamez P. Thiosemicarbazone Derivatives as Inhibitors of Amyloid-β Aggregation: Effect of Metal Coordination. Inorg Chem 2020; 59:6978-6987. [DOI: 10.1021/acs.inorgchem.0c00467] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Ana I. Matesanz
- Department of Inorganic Chemistry (M-07), School of Sciences, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Ana B. Caballero
- nanoBIC, Departament de Química Inorgànica i Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès, 1-11, 08028 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Carmen Lorenzo
- Department of Inorganic Chemistry (M-07), School of Sciences, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - Alba Espargaró
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
- Departament de Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona, Avda. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Raimon Sabaté
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
- Departament de Fisicoquímica, Facultat de Farmàcia i Ciències de l’Alimentació, Universitat de Barcelona, Avda. Joan XXIII 27-31, 08028 Barcelona, Spain
| | - Adoración G. Quiroga
- Department of Inorganic Chemistry (M-07), School of Sciences, Universidad Autónoma de Madrid, 28049 Madrid, Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid 28049, Spain
| | - Patrick Gamez
- nanoBIC, Departament de Química Inorgànica i Orgànica, Facultat de Química, Universitat de Barcelona, Martí i Franquès, 1-11, 08028 Barcelona, Spain
- Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
- Catalan Institution for Research and Advanced Studies, Passeig Lluís Companys 23, 08010 Barcelona, Spain
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16
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Anu D, Naveen P, Rath NP, Kaveri M. Palladium (II) complexes containing substituted thiosemicarbazones. Synthesis, spectral characterization, X-ray crystallography, biomolecular interactions and in vitro cytotoxicity. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127703] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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17
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Yang Z, Song Q, Cao Z, Yu G, Liu Z, Tan Z, Deng Y. Design, synthesis and evaluation of flurbiprofen-clioquinol hybrids as multitarget-directed ligands against Alzheimer’s disease. Bioorg Med Chem 2020; 28:115374. [DOI: 10.1016/j.bmc.2020.115374] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 10/25/2022]
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18
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Ozansoy M, Ozansoy MB, Yulug B, Cankaya S, Kilic E, Goktekin S, Kilic U. Melatonin affects the release of exosomes and tau-content in in vitro amyloid-beta toxicity model. J Clin Neurosci 2020; 73:237-244. [PMID: 32061493 DOI: 10.1016/j.jocn.2019.11.046] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/30/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Recent studies have been revealed that oxidative damage is the main cause of aging and age-related neurodegenerative diseases like Alzheimer's disease (AD). Melatonin is secreted from the pineal gland and its secretion has been found to be altered in AD. In the last decade the role of exosomes in spreading toxic proteins and inducing the propagation of diseases like AD has been discussed. However, it is not known how melatonin affects the amount of exosomes released from the cells and the content of the exosomes. OBJECTIVE Herein, we investigated the possible role of melatonin treatment in the releasing of exosomes and exosomal tau content in an in vitro Aβ toxicity model. METHOD SH-SY5Y cell line was used. The optimum concentration of Aβ was determined by cell viability and cell proliferation tests. Melatonin (100 µM) was applied before and after Aβ application. Total exosomes isolated from cell culture media were immunoprecipitated. The amount of released exosomes and their tau content were analyzed by Western blots. RESULTS Our data demonstrated for the first time that melatonin treatment clearly affected the amount of released exosomes. It would decrease the amyloid beta load and toxicity by inhibiting exosome release. We also demonstated that melatonin also affected the level of tau carried by exosomes depending on whether melatonin was applied before or after Aβ application. CONCLUSION It is considered that the effect of melatonin in the release of exosomes and exosomal tau content would contribute the development of therapeutic strategies in AD and related disorders.
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Affiliation(s)
- Mehmet Ozansoy
- T.C. Istanbul Bahcesehir University, School of Medicine, Dept. of Physiology, Istanbul, Turkey; T.C. Istanbul Medipol University, Regenerative and Restorative Medical Research Center (REMER), Istanbul, Turkey
| | - Muzaffer Beyza Ozansoy
- T.C. Istanbul Aydin University, School of Medicine, Dept. of Physiology, Istanbul, Turkey; T.C. Istanbul Medipol University, Regenerative and Restorative Medical Research Center (REMER), Istanbul, Turkey
| | - Burak Yulug
- Alaaddin Keykubat University, The Faculty of Medicine, Dept. of Neurology, Alanya, Turkey; T.C. Istanbul Medipol University, Regenerative and Restorative Medical Research Center (REMER), Istanbul, Turkey
| | - Seyda Cankaya
- Alaaddin Keykubat University, The Faculty of Medicine, Dept. of Neurology, Alanya, Turkey
| | - Ertugrul Kilic
- T.C. Istanbul Medipol University, School of Medicine, Dept. of Physiology, Istanbul, Turkey; T.C. Istanbul Medipol University, Regenerative and Restorative Medical Research Center (REMER), Istanbul, Turkey
| | - Sule Goktekin
- T.C. Istanbul Medipol University, Regenerative and Restorative Medical Research Center (REMER), Istanbul, Turkey
| | - Ulkan Kilic
- University of Health Sciences, Medical School, Department of Medical Biology, Istanbul, Turkey.
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19
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Jin L, Wang W, Shen Z, Xu J, Wang Q, Zhao C. A new coumarin-based fluorescence “turn-on” sensor for Al(III) ions and its bioimaging in cell. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.07.048] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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20
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Pavliukeviciene B, Zentelyte A, Jankunec M, Valiuliene G, Talaikis M, Navakauskiene R, Niaura G, Valincius G. Amyloid β oligomers inhibit growth of human cancer cells. PLoS One 2019; 14:e0221563. [PMID: 31509551 PMCID: PMC6738617 DOI: 10.1371/journal.pone.0221563] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 08/11/2019] [Indexed: 11/18/2022] Open
Abstract
Effects of amyloid beta (Aβ) oligomers on viability and function of cell lines such as NB4 (human acute promyelocytic leukemia), A549 (human lung cancer (adenocarcinomic alveolar basal epithelial tumor)) and MCF-7 (human breast cancer (invasive breast ductal carcinoma)) were investigated. Two types of Aβ oligomers were used in the study. The first type was produced in the presence of oligomerization inhibitor, hexafluoroisopropanol (HFIP). The second type of amyloids was assembled in the absence of the inhibitor. The first type preparation was predominantly populated with dimers and trimers, while the second type contained mostly pentadecamers. These amyloid species exhibited different secondary protein structure with considerable amount of antiparallel β sheet structural elements in HFIP oligomerized Aβ mixtures. The effect of the cell growth inhibition, which was stronger in the case of HFIP Aβ oligomers, was observed for all cell lines. Tests aiming at elucidating the effects of the amyloid species on cell cycles showed little differences between amyloid preparations. This prompts us to conclude that the effect on the cancer cell proliferation rate is less specific to the biological processes developing inside the cells during the proliferation. Therefore, cell growth inhibition may involve interactions with the peripheral parts of the cancer cells, such as a phospholipid membrane, and only in case of the NB4 cells, where accumulation of amyloid species inside the cells was detected, one may imply the opposite. In general, cancer cells were much less susceptible to the damaging effects of amyloid oligomers compared to earlier observations in mixed neuronal cell cultures.
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Affiliation(s)
- Bozena Pavliukeviciene
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Aiste Zentelyte
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Marija Jankunec
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Giedre Valiuliene
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Martynas Talaikis
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Ruta Navakauskiene
- Department of Molecular Cell Biology, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Gediminas Niaura
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Gintaras Valincius
- Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center, Vilnius University, Vilnius, Lithuania
- * E-mail:
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21
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Kalaiarasi G, Dharani S, Lynch VM, Prabhakaran R. para metallation of 3-acetyl-chromen-2-one Schiff bases in tetranuclear palladacycles: focus on their biomolecular interaction and in vitro cytotoxicity. Dalton Trans 2019; 48:12496-12511. [PMID: 31361288 DOI: 10.1039/c9dt02663k] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three tetranuclear (1-3) complexes and a mononuclear (4) palladium(ii) complex were synthesized from 3-acetyl-chromen-2-one Schiff base ligands [H2-3MAC-Rtsc] (where R = H [H2-3MAC-tsc]; CH3[H2-3MAC-mtsc]; C2H5[H2-3MAC-etsc] or C6H5[H2-3MAC-ptsc]) and potassium tetrachloropalladate. Their formation was confirmed by spectroscopic techniques and X-ray crystallographic analysis. Their ability to bind with DNA and albumin was analysed by using absorption and emission titrations. The MTT assay was carried out to analyze the anticancer potential of the ligands and synthesized complexes against HepG2 (human liver cancer) and HT-29 (human colon cancer) cells. In addition, the compounds were less toxic when tested against the human normal keratinocyte cells (HaCaT). Ligands and complexes displayed better cytotoxicity with lower IC50 values than the standard drug cisplatin. Further AO-EB and DAPI staining assays were carried out to detect the mode of cell death induced by the complexes i.e. apoptosis or necrosis. The complex 3 showed better cytotoxicity and was further subjected to flow cytometric analysis. The results suggested that the complex 3 induced apoptotic cell death.
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Affiliation(s)
- G Kalaiarasi
- Department of Chemistry, Bharathiar University, Coimbatore, 641 046, India.
| | - S Dharani
- Department of Chemistry, Bharathiar University, Coimbatore, 641 046, India.
| | - V M Lynch
- Department of Chemistry, University of Texas, Austin, TX 78712-1224, USA
| | - R Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore, 641 046, India.
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22
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Jin L, Tan X, Dai L, Sheng L, Wang Q. A highly specific and sensitive turn-on fluorescence probe for hypochlorite detection and its bioimaging applications. RSC Adv 2019; 9:15926-15932. [PMID: 35521388 PMCID: PMC9064325 DOI: 10.1039/c9ra01457h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 05/04/2019] [Indexed: 11/21/2022] Open
Abstract
Development of high performance fluorescent chemosensors for the detection of ClO- in vitro and in vivo is very desirable, because many human diseases are caused by ClO-. In this paper, a highly selectivity and sensitive fluorescent probe, EDPC, based on 3-acetylcoumarin, was synthesized, which could respond to ClO- and exhibit an "off-on" mode in Tris-HCl buffer (pH = 7.2, 10 mM, 50% C2H5OH) solutions. The detection limit of the EDPC probe for ClO- was as low as 1.2 × 10-8 M. Moreover, the high selectivity and high sensitivity of EDPC towards ClO- are attributed to the oxidation reaction between the C-O of the coumarin lactone and the C[double bond, length as m-dash]C formed by aldol condensation and the mechanism was further verified using ESI-MS and DFT. Additionally, the concentrations of ClO- in real water were also calculated using the EDPC probe and showed good recovery. Finally, the distribution of intracellular endogenous ClO- was gained by confocal fluorescence microscopy in living HEK293T cells.
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Affiliation(s)
- Lei Jin
- School of Pharmacy, Yancheng Teachers' University Yancheng Jiangsu 224051 People's Republic of China
- College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology Nanjing 210009 People's Republic of China
| | - Xiaoxue Tan
- School of Pharmacy, Yancheng Teachers' University Yancheng Jiangsu 224051 People's Republic of China
| | - Lihui Dai
- School of Pharmacy, Yancheng Teachers' University Yancheng Jiangsu 224051 People's Republic of China
| | - Liqiang Sheng
- School of Pharmacy, Yancheng Teachers' University Yancheng Jiangsu 224051 People's Republic of China
| | - Qingming Wang
- School of Pharmacy, Yancheng Teachers' University Yancheng Jiangsu 224051 People's Republic of China
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23
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Wang Q, Jin L, Wang W, Dai L, Tan X, Zhao C. Two coumarin-based turn-on fluorescent probes based on for hypochlorous acid detection and imaging in living cells. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2019; 211:239-245. [PMID: 30553147 DOI: 10.1016/j.saa.2018.12.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 11/19/2018] [Accepted: 12/09/2018] [Indexed: 06/09/2023]
Abstract
This work, two turn-on fluorescent probes (3-acetyl-2H-chromen-2-one (ACO) & (1E)-1-(1-(2-oxo-2H-chromen-3-yl)ethylidene)thiosemicarbazide (CETC)) based on coumarin have been designed and synthesized, which could selectively and sensitively recognize ClO- with fast response time. ACO &CETC were almost non fluorescent possibly due to both the lacton form of coumarin and unbridged CN bonds which can undergo a nonradiative decay process in the excited state. Upon the addition of ClO-, ACO &CETC were oxidized to ring - opened by cleavage the CO and CN and the fluorescence intensity were increased considerably. Fluorescence titration experiments showed that the detection limit ACO &CETC is as low as 22 nm and 51 nm respectively. In particular, some relevant reactive species, including OH, 1O2, H2O2, KO2, some anions and cations cannot be interference with the test. In live cell experiments, ACO &CETC were successfully applied to image exogenous ClO- in HepG2 cells. Therefore, ACO &CETC not only could image ClO- in living cells but also proved that CO and CN can be cleavage by ClO-.
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Affiliation(s)
- Qingming Wang
- School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, Jiangsu 224051, People's Republic of China.
| | - Lei Jin
- School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, Jiangsu 224051, People's Republic of China; College of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing, 210009, People's Republic of China
| | - Wenling Wang
- School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, Jiangsu 224051, People's Republic of China
| | - Lihui Dai
- School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, Jiangsu 224051, People's Republic of China
| | - Xiaoxue Tan
- School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, Jiangsu 224051, People's Republic of China
| | - Cong Zhao
- School of Pharmacy, Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers' University, Yancheng, Jiangsu 224051, People's Republic of China
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Yusufzai SK, Khan MS, Sulaiman O, Osman H, Lamjin DN. Molecular docking studies of coumarin hybrids as potential acetylcholinesterase, butyrylcholinesterase, monoamine oxidase A/B and β-amyloid inhibitors for Alzheimer's disease. Chem Cent J 2018; 12:128. [PMID: 30515636 PMCID: PMC6768047 DOI: 10.1186/s13065-018-0497-z] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 11/21/2018] [Indexed: 01/11/2023] Open
Abstract
Coumarins are the phytochemicals, which belong to the family of benzopyrone, that display interesting pharmacological properties. Several natural, synthetic and semisynthetic coumarin derivatives have been discovered in decades for their applicability as lead structures as drugs. Coumarin based conjugates have been described as potential AChE, BuChE, MAO and β-amyloid inhibitors. Therefore, the objective of this review is to focus on the construction of these pharmacologically important coumarin analogues with anti-Alzheimer’s activities, highlight their docking studies and structure–activity relationships based on their substitution pattern with respect to the selected positions on the chromen ring by emphasising on the research reports conducted in between year 1968 to 2017.![]()
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Affiliation(s)
- Samina Khan Yusufzai
- School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Mohammad Shaheen Khan
- Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia.
| | - Othman Sulaiman
- School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Hasnah Osman
- School of Chemical Sciences, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - Dalily Nabilah Lamjin
- Industrial Chemistry Programme, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, 88400, Kota Kinabalu, Sabah, Malaysia
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25
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Design, Synthesis of N-phenethyl Cinnamide Derivatives and Their Biological Activities for the Treatment of Alzheimer's Disease: Antioxidant, Beta-amyloid Disaggregating and Rescue Effects on Memory Loss. Molecules 2018; 23:molecules23102663. [PMID: 30332835 PMCID: PMC6222358 DOI: 10.3390/molecules23102663] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 10/03/2018] [Accepted: 10/10/2018] [Indexed: 02/07/2023] Open
Abstract
Gx-50 is a bioactive compound for the treatment of Alzheimer’s disease (AD) found in Sichuan pepper (Zanthoxylum bungeanum). In order to find a stronger anti-AD lead compound, 20 gx-50 (1–20) analogs have been designed and synthesized, and their molecular structures were determined based on nuclear magnetic resonance (NMR) and mass spectrometry (MS) analysis, as well as comparison with literature data. Compounds 1–20 were evaluated for their anti-AD potential by using DPPH radical scavenging assay for considering their anti-oxidant activity, thioflavin T (ThT) fluorescence assay for considering the inhibitory or disaggregate potency of Aβ, and transgenic Drosophila model assay for evaluating their rescue effect on memory loss. Finally, compound 13 was determined as a promising anti-AD candidate.
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26
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Hosny M, Salem ME, Darweesh AF, Elwahy AHM. Synthesis of Novel Bis(thiazolylchromen-2-one) Derivatives Linked to Alkyl Spacer via
Phenoxy Group. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3296] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Mohamed Hosny
- Chemistry Department, Faculty of Science; Cairo University; Giza Egypt
| | - Mostafa E. Salem
- Chemistry Department, Faculty of Science; Cairo University; Giza Egypt
| | - Ahmed F. Darweesh
- Chemistry Department, Faculty of Science; Cairo University; Giza Egypt
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Kalaiarasi G, Rex Jeya Rajkumar S, Aswini G, Dharani S, Fronczek FR, Prabhakaran R. 3-Acetyl-8-methoxy-2[H]-chromen-2-one derived Schiff bases as potent antiproliferative agents: Insight into the influence of 4(N)-substituents on the in vitro biological activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 200:246-262. [PMID: 29694929 DOI: 10.1016/j.saa.2018.04.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/11/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
A series of 3-acetyl-8-methoxycoumarin appended thiosemicarbazones (1-4) was prepared from the reaction of 3-acetyl-8-methoxycoumarin with 4(N)-substituted thiosemicarbazides in a view of ascertaining their biological properties with the change of N-terminal substitution in the thiosemicarbazide moiety. Comprehensive characterization was brought about by various spectral and analytical methods. The molecular structures of all the compounds were determined by single crystal X-ray diffraction analysis. Binding studies with Calf thymus DNA (CT-DNA) and proteins such as Bovine Serum Albumin (BSA) and Human Serum Albumin (HSA) indicated an intercalative mode of binding with DNA and static quenching mechanism with proteins. The compounds cleaved plasmid DNA (pBR322) and acted well as free radical scavengers. A good spectrum of antimicrobial activity was observed against four bacterial and five fungal pathogens. The compounds exhibited profound antiproliferative activity on MCF-7 (human breast cancer) and A549 (human lung carcinoma) cell lines. Assay on human normal keratinocyte cell line HaCaT showed that the compounds were non-toxic to normal cells.
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Affiliation(s)
- G Kalaiarasi
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - S Rex Jeya Rajkumar
- Department of Biosciences and Technology, Karunya University, Coimbatore 641 114, India
| | - G Aswini
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - S Dharani
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - Frank R Fronczek
- Department of Chemistry, Louisiana State University, Baton Rouge, LA 70803, USA
| | - R Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India.
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28
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Vyas NA, Singh SB, Kumbhar AS, Ranade DS, Walke GR, Kulkarni PP, Jani V, Sonavane UB, Joshi RR, Rapole S. Acetylcholinesterase and Aβ Aggregation Inhibition by Heterometallic Ruthenium(II)-Platinum(II) Polypyridyl Complexes. Inorg Chem 2018; 57:7524-7535. [PMID: 29893118 DOI: 10.1021/acs.inorgchem.8b00091] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Two heteronuclear ruthenium(II)-platinum(II) complexes [Ru(bpy)2(BPIMBp)PtCl2]2+ (3) and [Ru(phen)2(BPIMBp)PtCl2]2+ (4), where bpy = 2,2'-bipyridine, phen = 1,10-phenanthroline, and BPIMBp = 1,4'-bis[(2-pyridin-2-yl)-1H-imidazol-1-ylmethyl]-1,1'-biphenyl, have been designed and synthesized from their mononuclear precursors [Ru(bpy)2(BPIMBp)]2+ (1) and [Ru(phen)2(BPIMBp)]2+ (2) as multitarget molecules for Alzheimer's disease (AD). The inclusion of the cis-PtCl2 moiety facilitates the covalent interaction of Ru(II) polypyridyl complexes with amyloid β (Aβ) peptide. These multifunctional complexes act as inhibitors of acetylcholinesterase (AChE), Aβ aggregation, and Cu-induced oxidative stress and protect neuronal cells against Aβ-toxicity. The study highlights the design of metal based anti-Alzheimer's disease (AD) systems.
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Affiliation(s)
- Nilima A Vyas
- Department of Chemistry , Savitribai Phule Pune University , Pune - 411007 , India
| | - Sushma B Singh
- Department of Chemistry , Savitribai Phule Pune University , Pune - 411007 , India
| | - Avinash S Kumbhar
- Department of Chemistry , Savitribai Phule Pune University , Pune - 411007 , India
| | - Dnyanesh S Ranade
- Bioprospecting Group, Agharkar Research Institute , Savitribai Phule Pune University , Pune - 411004 , India
| | - Gulshan R Walke
- Bioprospecting Group, Agharkar Research Institute , Savitribai Phule Pune University , Pune - 411004 , India
| | - Prasad P Kulkarni
- Bioprospecting Group, Agharkar Research Institute , Savitribai Phule Pune University , Pune - 411004 , India
| | - Vinod Jani
- Centre for Development of Advanced Computing (C-DAC) , Savitribai Phule Pune University , Pune - 411007 , India
| | - Uddhavesh B Sonavane
- Centre for Development of Advanced Computing (C-DAC) , Savitribai Phule Pune University , Pune - 411007 , India
| | - Rajendra R Joshi
- Centre for Development of Advanced Computing (C-DAC) , Savitribai Phule Pune University , Pune - 411007 , India
| | - Srikanth Rapole
- Proteomics Laboratory, National Centre for Cell Sciences , Savitribai Phule Pune University , Pune - 411007 , India
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Zaman M, Khan MV, Zakariya SM, Nusrat S, Meeran SM, Alam P, Ajmal MR, Wahiduzzaman W, Shahein YE, Abouelella AM, Khan RH. Amino group of salicylic acid exhibits enhanced inhibitory potential against insulin amyloid fibrillation with protective aptitude toward amyloid induced cytotoxicity. J Cell Biochem 2018; 119:3945-3956. [DOI: 10.1002/jcb.26538] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 12/01/2017] [Indexed: 01/30/2023]
Affiliation(s)
- Masihuz Zaman
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
| | - Mohsin Vahid Khan
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
| | - Syed Mohammad Zakariya
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
| | - Saima Nusrat
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
| | - Syed Mustapha Meeran
- Laboratory of Cancer Epigenetics, Division of EndocrinologyCSIR‐Central Drug Research InstituteLucknowIndia
| | - Parvez Alam
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
| | - Mohammad Rehan Ajmal
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
| | | | - Yasser E. Shahein
- Genetic Engineering and Biotechnology Division, Molecular Biology DepartmentNational Research CentreDokkiCairoEgypt
- Biology Department, College of ScienceHail UniversityHailSaudi Arabia
| | - Amira M. Abouelella
- Radiation Biology DepartmentNational Centre for Radiation Research and Technology (NCRRT)CairoEgypt
| | - Rizwan Hasan Khan
- Molecular Biophysics and Biophysical Chemistry GroupInterdisciplinary Biotechnology UnitAligarh Muslim UniversityAligarhIndia
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30
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Kalaiarasi G, Jeya Rajkumar SR, Dharani S, Małecki JG, Prabhakaran R. An investigation on 3-acetyl-7-methoxy-coumarin Schiff bases and their Ru(ii) metallates with potent antiproliferative activity and enhanced LDH and NO release. RSC Adv 2018; 8:1539-1561. [PMID: 35540910 PMCID: PMC9077138 DOI: 10.1039/c7ra12104k] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 12/17/2017] [Indexed: 01/17/2023] Open
Abstract
New cyclometallated ruthenium(ii) complexes of 3-acetyl-7-methoxycoumarin-4N-substituted thiosemicarbazones were synthesized and characterized by analytical and spectral techniques. The crystal structures of the ligands H2L1-3 and complexes (1, 2 and 4) were confirmed by X-ray crystallography. The analysis showed that the ligands have undergone C-H activation at the C(4) carbon of the pyrone ring and acted in a tridentate fashion by binding through C, N and S atoms. CT-DNA and protein (BSA/HSA) binding studies were carried out to analyze their interaction with biomolecules. Good binding affinity with DNA was observed with intercalative binding mode, which was further confirmed by EB displacement and viscosity measurement studies. The quenching mechanism with BSA/HSA was found to be static. Three dimensional (3D) fluorescence measurements were carried out to validate the micro environmental changes in the serum albumins. Their antioxidant propensity and antimicrobial study insisted that the compounds displayed good spectrum of activity. Evaluation of their anticancer potential against MCF-7 (human breast cancer) and A549 (human lung carcinoma) cell lines revealed that the complexes exhibited better activity than the ligands and cisplatin. Further, the results of LDH and NO release assays supported the cytotoxic nature of the compounds. The non-toxic nature of the compounds was established by testing against the non-cancerous cell line HaCaT (human normal keratinocyte).
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Affiliation(s)
- G Kalaiarasi
- Department of Chemistry, Bharathiar University Coimbatore 641 046 India +91-422-2422387 +91-422-2428319
| | - S Rex Jeya Rajkumar
- Department of Biosciences and Technology, Karunya University Coimbatore 641 114 India
| | - S Dharani
- Department of Chemistry, Bharathiar University Coimbatore 641 046 India +91-422-2422387 +91-422-2428319
| | - J G Małecki
- Department of Crystallography, Silsian University Szkolna 9 40-006 Katowice Poland
| | - R Prabhakaran
- Department of Chemistry, Bharathiar University Coimbatore 641 046 India +91-422-2422387 +91-422-2428319
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31
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Kalaiarasi G, Rajkumar SRJ, Dharani S, Fronczek FR, Muthukumar Nadar MSA, Prabhakaran R. Cyclometallated ruthenium(ii) complexes with 3-acetyl-2[H]-chromene-2-one derived CNS chelating ligand systems: synthesis, X-ray characterization and biological evaluation. NEW J CHEM 2018. [DOI: 10.1039/c7nj02877f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The presented work focuses on the synthesis and biological evaluation of 3-acetylcoumarin Schiff bases and their cyclometallated ruthenium(ii) metallates.
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Affiliation(s)
- G. Kalaiarasi
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | - S. Rex Jeya Rajkumar
- Department of Biosciences and Technology
- Karunya University
- Coimbatore 641 114
- India
| | - S. Dharani
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | | | | | - R. Prabhakaran
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
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32
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Haribabu J, Ranade DS, Bhuvanesh NSP, Kulkarni PP, Karvembu R. Ru(II)-p
-cymene Thiosemicarbazone Complexes as Inhibitors of Amyloid β (Aβ) Peptide Aggregation and Aβ-Induced Cytotoxicity. ChemistrySelect 2017. [DOI: 10.1002/slct.201702390] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jebiti Haribabu
- Department of Chemistry; National Institute of Technology; Tiruchirappalli 620015 India
| | - Dnyanesh S. Ranade
- Bioprospecting Group; Agharkar Research Institute; G. G. Agarkar Road Pune 411004 India
| | | | - Prasad P. Kulkarni
- Bioprospecting Group; Agharkar Research Institute; G. G. Agarkar Road Pune 411004 India
| | - Ramasamy Karvembu
- Department of Chemistry; National Institute of Technology; Tiruchirappalli 620015 India
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33
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Ranade DS, Shravage BV, Kumbhar AA, Sonawane UB, Jani VP, Joshi RR, Kulkarni PP. Thiosemicarbazone Moiety Assist in Interaction of Planar Aromatic Molecules with Amyloid Beta Peptide and Acetylcholinesterase. ChemistrySelect 2017. [DOI: 10.1002/slct.201700588] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Dnyanesh S. Ranade
- Bioprospecting group Agharkar Research Institute, Pune G. G. Agarkar Road Pune-411004 India
| | - Bhupendra V. Shravage
- Development Biology group Agharkar Research Institute, Pune G. G. Agarkar Road Pune-411004 India
| | - Anupa A. Kumbhar
- Department of Chemistry Savitribai Phule Pune University Ganeshkhind Road Pune-411007 India
| | - Uddhavesh B. Sonawane
- Centre for Development of Advanced Computing (C–DAC) Savitribai Phule University of Pune Campus Pune-411007 India
| | - Vinod P. Jani
- Centre for Development of Advanced Computing (C–DAC) Savitribai Phule University of Pune Campus Pune-411007 India
| | - Rajendra R. Joshi
- Centre for Development of Advanced Computing (C–DAC) Savitribai Phule University of Pune Campus Pune-411007 India
| | - Prasad P. Kulkarni
- Bioprospecting group Agharkar Research Institute, Pune G. G. Agarkar Road Pune-411004 India
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34
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Alam P, Beg AZ, Siddiqi MK, Chaturvedi SK, Rajpoot RK, Ajmal MR, Zaman M, Abdelhameed AS, Khan RH. Ascorbic acid inhibits human insulin aggregation and protects against amyloid induced cytotoxicity. Arch Biochem Biophys 2017; 621:54-62. [DOI: 10.1016/j.abb.2017.04.005] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 03/22/2017] [Accepted: 04/10/2017] [Indexed: 12/28/2022]
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