51
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A selective and label-free strategy for rapid screening of telomere-binding Ligands via fluorescence regulation of DNA/silver nanocluster. Sci Rep 2017; 7:42629. [PMID: 28262705 PMCID: PMC5338008 DOI: 10.1038/srep42629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2016] [Accepted: 08/22/2016] [Indexed: 02/04/2023] Open
Abstract
Herein, the conformational switch of G-rich oligonucleotide (GDNA) demonstrated the obvious functional switch of GDNA which was found to significantly affect the fluorescence of the in-situ synthesized DNA/silver nanocluster (DNA-AgNC) in homogeneous solution. We envisioned that the allosteric interaction between GDNA and DNA-AgNC would be possible to be used for screening telomere-binding ligands. A unimolecular probe (12C5TG) is ingeniously designed consisting of three contiguous DNA elements: G-rich telomeric DNA (GDNA) as molecular recognition sequence, T-rich DNA as linker and C-rich DNA as template of DNA-AgNC. The quantum yield and stability of 12C5TG-AgNC is greatly improved because the nearby deoxyguanosines tended to protect DNA/AgNC against oxidation. However, in the presence of ligands, the formation of G-quadruplex obviously quenched the fluorescence of DNA-AgNC. By taking full advantage of intramolecular allosteric effect, telomere-binding ligands were selectively and label-free screened by using deoxyguanines and G-quadruplex as natural fluorescence enhancer and quencher of DNA-AgNC respectively. Therefore, the functional switching of G-rich structure offers a cost-effective, facile and reliable way to screen drugs, which holds a great potential in bioanalysis as well.
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52
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Bag SS, Pradhan MK, Talukdar S. Tetrazolylpyrene unnatural nucleoside as a human telomeric multimeric G-quadruplex selective switch-on fluorescent sensor. Org Biomol Chem 2017; 15:10145-10150. [DOI: 10.1039/c7ob02433a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Specific sensing of dimeric H45 G-quadruplex DNA using a fluorescence light-up probe, tetrazolylpyrene nucleoside (TzPyBDo), is reported.
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Affiliation(s)
- Subhendu Sekhar Bag
- Bioorganic Chemistry Laboratory
- Department of Chemistry
- Indian Institute of Technology Guwahati
- North Guwhati-781039
- India
| | - Manoj Kumar Pradhan
- Bioorganic Chemistry Laboratory
- Department of Chemistry
- Indian Institute of Technology Guwahati
- North Guwhati-781039
- India
| | - Sangita Talukdar
- Bioorganic Chemistry Laboratory
- Department of Chemistry
- Indian Institute of Technology Guwahati
- North Guwhati-781039
- India
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53
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Razak NA, Akhtar MN, Abu N, Ho WY, Tan SW, Zareen S, Taj-ud-din SNB, Long K, Alitheen NB, Yeap SK. The in vivo anti-tumor effect of curcumin derivative (2E,6E)-2,6-bis(4-hydroxy-3-methoxybenzylidene)cyclohexanone (BHMC) on 4T1 breast cancer cells. RSC Adv 2017. [DOI: 10.1039/c7ra06580a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
BHMC possessedin vitroandin vivoantitumor effect on 4T1 triple negative breast cancer cells.
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Affiliation(s)
| | - M. Nadeem Akhtar
- Bio-aromatic Research Center of Excellence
- Faculty of Industrial Sciences & Technology
- Universiti Malaysia Pahang
- Kuantan 26300
- Malaysia
| | - Nadiah Abu
- UKM Molecular Biology Institute (UMBI)
- UKM Medical Centre
- Cheras 56000
- Malaysia
| | - Wan Yong Ho
- School of Biomedical Sciences
- The University of Nottingham Malaysia Campus
- Semenyih 43500
- Malaysia
| | - Sheau Wei Tan
- Institute of Bioscience
- Universiti Putra Malaysia
- Serdang
- Malaysia
| | - Seema Zareen
- Bio-aromatic Research Center of Excellence
- Faculty of Industrial Sciences & Technology
- Universiti Malaysia Pahang
- Kuantan 26300
- Malaysia
| | - Saiful Nizam bin Taj-ud-din
- Bio-aromatic Research Center of Excellence
- Faculty of Industrial Sciences & Technology
- Universiti Malaysia Pahang
- Kuantan 26300
- Malaysia
| | - Kamariah Long
- Malaysian Agricultural Research and Development Institute (MARDI)
- Serdang
- Malaysia
| | - Noorjahan Banu Alitheen
- Department of Cell and Molecular Biology
- Faculty of Biotechnology and Biomolecular Sciences
- Universiti Putra Malaysia
- Serdang
- Malaysia
| | - Swee Keong Yeap
- Institute of Bioscience
- Universiti Putra Malaysia
- Serdang
- Malaysia
- China-ASEAN College of Marine Sciences
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54
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Cancemi P, Buttacavoli M, D'Anna F, Feo S, Fontana RM, Noto R, Sutera A, Vitale P, Gallo G. The effects of structural changes on the anti-microbial and anti-proliferative activities of diimidazolium salts. NEW J CHEM 2017. [DOI: 10.1039/c6nj03904a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Anti-microbial and anti-proliferative activities of diimidazolium salts have been analyzed as a function of the main changes in their structural features.
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Affiliation(s)
- Patrizia Cancemi
- Dipartimento STEBICEF
- Sezione di Biologia Cellulare
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Miriam Buttacavoli
- Dipartimento STEBICEF
- Sezione di Biologia Cellulare
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Francesca D'Anna
- Dipartimento STEBICEF
- Sezione di Chimica
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Salvatore Feo
- Dipartimento STEBICEF
- Sezione di Biologia Cellulare
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Rosa Maria Fontana
- Dipartimento STEBICEF
- Sezione di Biologia Cellulare
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Renato Noto
- Dipartimento STEBICEF
- Sezione di Chimica
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Alberto Sutera
- Dipartimento STEBICEF
- Sezione di Biologia Cellulare
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Paola Vitale
- Dipartimento STEBICEF
- Sezione di Chimica
- Viale delle Scienze
- 90128 Palermo
- Italy
| | - Giuseppe Gallo
- Dipartimento STEBICEF
- Sezione di Biologia Cellulare
- Viale delle Scienze
- 90128 Palermo
- Italy
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55
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Liu Y, Zhang G, Guo Q, Ma L, Jia Q, Liu L, Zhou J. Artificially controlled degradable inorganic nanomaterial for cancer theranostics. Biomaterials 2017; 112:204-217. [DOI: 10.1016/j.biomaterials.2016.10.028] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 10/01/2016] [Accepted: 10/16/2016] [Indexed: 12/25/2022]
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56
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Zhao L, Liu G, Zhang B. A colorimetric and fluorescence enhancement anion probe based on coumarin compounds. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2016; 169:45-49. [PMID: 27323317 DOI: 10.1016/j.saa.2016.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Revised: 04/03/2016] [Accepted: 05/02/2016] [Indexed: 06/06/2023]
Abstract
In this paper, anion probe 1 was designed and synthesized by using phenprocoumon containing acyl hydrazine with p-nitro azo salicylaldehyde reaction Dickson et al. (2008) Dickson et al. (2008) [1]. In the anion probe 1, the nitro moiety is a signaling group and the phenolic hydroxyl moiety is anion binding site. Then the anion probe 1 was characterized by mass spectra (MS) and infrared spectra (IR). The binding properties of the anion probe 1 for anions such as F(-), AcO(-), H2PO4(-), OH(-), Cl(-), Br(-) and I(-) were investigated by ultraviolet-visible (UV-Vis) spectra and fluorescence spectra Shao et al. (2008) Shao et al. (2008) [2]. Furthermore, the color of anion probe 1 after addition of F(-), AcO(-), H2PO4(-) and OH(-) in DMSO changed from yellow to blue, while no obvious color changes were observed by addition of other tested anions. Accordingly, the anion probe 1 could sense visually F(-), AcO(-), H2PO4(-) and OH(-) without resorting to any spectroscopic instrumentation Amendola et al. (2010) Amendola et al. (2010) [3].
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Affiliation(s)
- Limin Zhao
- College of Chemistry and Chemical Engineering, Chifeng University, Chifeng 024000, PR China.
| | - Ge Liu
- College of Chemistry and Chemical Engineering, Chifeng University, Chifeng 024000, PR China
| | - Baofeng Zhang
- No. 2 Experimental Middle School of Chifeng, Chifeng 024000, PR China
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57
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Schäfer K, Ihmels H, Porcù E, Viola G. Control of the DNA-Binding and Antiproliferative Properties of Hydroxybenzo[b]quinolizinium Derivatives with pH and Light. Chemistry 2016; 23:370-379. [PMID: 27758047 DOI: 10.1002/chem.201603807] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Indexed: 11/06/2022]
Abstract
The interactions of 8-hydroxybenzo[b]quinolizinium and 9-hydroxybenzo[b]quinolizinium with DNA are investigated in detail. Specifically, spectrophotometric and spectrofluorimetric titrations, thermal DNA-denaturation experiments as well as CD- and LD-spectroscopic analysis show that a pH shift by just one or two orders of magnitude has a significant impact on the interactions of the acidic ligands with the nucleic acid. Both ligands bind with high affinity to DNA at pH 6 (Kb ≈105 m-1 ). At pH 7 or 8, however, the binding interactions are much weaker because of the formation of the corresponding charge-neutral conjugate bases, the affinity to DNA of which is reduced because of the resulting lack of a positive charge. Notably, the variation of DNA affinity occurs in a range that corresponds to the fluctuations of pH values under physiological conditions, so that these ligands may be employed to target DNA in tissue with particular pH values, especially, cancer cells. The antiproliferative activity of the title compounds under different conditions is also investigated. In the absence of irradiation, both compounds show only a modest cytotoxicity toward cancer cells. However, upon irradiation, even at low UV-A doses, a significant reduction of cell viability of tumor cell lines is induced by the ligands.
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Affiliation(s)
- Katy Schäfer
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
| | - Heiko Ihmels
- Department Chemie-Biologie, Universität Siegen, Adolf-Reichwein-Str. 2, 57068, Siegen, Germany
| | - Elena Porcù
- Dipartimento di Salute della Donna e del Bambino, Laboratorio di Oncoematologia, University of Padova, via Giustiniani 3, 35128, Padova, Italy
| | - Giampietro Viola
- Dipartimento di Salute della Donna e del Bambino, Laboratorio di Oncoematologia, University of Padova, via Giustiniani 3, 35128, Padova, Italy
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58
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Wilsdorf M, Reissig HU. Towards γ-Rubromycin: Model Studies, Development of a C3Building Block, and Synthesis of 4′-Silyl-γ-rubromycin. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601224] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Michael Wilsdorf
- Institut für Chemie und Biochemie; Freie Universität Berlin; Takustr. 3 14195 Berlin Germany
| | - Hans-Ulrich Reissig
- Institut für Chemie und Biochemie; Freie Universität Berlin; Takustr. 3 14195 Berlin Germany
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59
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Abstract
The study of pharmacokinetics (PK) and pharmacodynamics (PD) in cancer drug discovery and development is often paired and described in reciprocal terms, where PK is the analysis of the change in drug concentration with time and PD is the analysis of the biological effects of the drug at various concentrations over different time courses. While PK is defined by how a compound is absorbed, distributed, metabolized, and eliminated, PD refers to the measure of a compound's ability to interact with its intended target, leading to a biologic effect. Recent advances in anti-breast cancer drug discovery have resulted in several new drugs, but there is still a high attrition rate during clinical development. One reason for this failure is attributed to inappropriate correlation between the PK and PD parameters and subsequent extrapolation to human subjects. In this chapter, we describe the protocols of PK and PD studies in breast cancer models to assess the efficacy of an anti-breast cancer compound, noting the types and endpoints employed, and explain why it is important to link PK and PD in order to establish and evaluate dose/concentration-response relationships and subsequently describe and predict the effect-time courses for a given drug dose.
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60
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Belizário JE, Sangiuliano BA, Perez-Sosa M, Neyra JM, Moreira DF. Using Pharmacogenomic Databases for Discovering Patient-Target Genes and Small Molecule Candidates to Cancer Therapy. Front Pharmacol 2016; 7:312. [PMID: 27746730 PMCID: PMC5040751 DOI: 10.3389/fphar.2016.00312] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Accepted: 08/31/2016] [Indexed: 01/10/2023] Open
Abstract
With multiple omics strategies being applied to several cancer genomics projects, researchers have the opportunity to develop a rational planning of targeted cancer therapy. The investigation of such numerous and diverse pharmacogenomic datasets is a complex task. It requires biological knowledge and skills on a set of tools to accurately predict signaling network and clinical outcomes. Herein, we describe Web-based in silico approaches user friendly for exploring integrative studies on cancer biology and pharmacogenomics. We briefly explain how to submit a query to cancer genome databases to predict which genes are significantly altered across several types of cancers using CBioPortal. Moreover, we describe how to identify clinically available drugs and potential small molecules for gene targeting using CellMiner. We also show how to generate a gene signature and compare gene expression profiles to investigate the complex biology behind drug response using Connectivity Map. Furthermore, we discuss on-going challenges, limitations and new directions to integrate molecular, biological and epidemiological information from oncogenomics platforms to create hypothesis-driven projects. Finally, we discuss the use of Patient-Derived Xenografts models (PDXs) for drug profiling in vivo assay. These platforms and approaches are a rational way to predict patient-targeted therapy response and to develop clinically relevant small molecules drugs.
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Affiliation(s)
- José E Belizário
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Beatriz A Sangiuliano
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Marcela Perez-Sosa
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Jennifer M Neyra
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
| | - Dayson F Moreira
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo São Paulo, Brazil
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61
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Yang L, Wang Y, Li B, Jin Y. High-throughput identification of telomere-binding ligands based on the fluorescence regulation of DNA-copper nanoparticles. Biosens Bioelectron 2016; 87:915-920. [PMID: 27664411 DOI: 10.1016/j.bios.2016.09.055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 09/06/2016] [Accepted: 09/16/2016] [Indexed: 01/08/2023]
Abstract
Formation of the G-quadruplex in the human telomeric DNA is an effective way to inhibit telomerase activity. Therefore, screening ligands of G-quadruplex has potential applications in the treatment of cancer by inhibit telomerase activity. Although several techniques have been explored for screening of telomeric G-quadruplexes ligands, high-throughput screening method for fast screening telomere-binding ligands from the large compound library is still urgently needed. Herein, a label-free fluorescence strategy has been proposed for high-throughput screening telomere-binding ligands by using DNA-copper nanoparticles (DNA-CuNPs) as a signal probe. In the absence of ligands, human telomeric DNA (GDNA) hybridized with its complementary DNA (cDNA) to form double stranded DNA (dsDNA) which can act as an efficient template for the formation of DNA-CuNPs, leading to the high fluorescence of DNA-CuNPs. In the presence of ligands, GDNA folded into G-quadruplex. Single-strdanded cDNA does not support the formation of DNA-CuNP, resulting in low fluorescence of DNA-CuNPs. Therefore, telomere-binding ligands can be high-throughput screened by monitoring the change in the fluorescence of DNA-CuNPs. Thirteen traditional chinese medicines were screened. Circular dichroism (CD) measurements demonstrated that the selected ligands could induce single-stranded telomeric DNA to form G-quadruplex. The telomere repeat amplification protocol (TRAP) assay demonstrated that the selected ligands can effectively inhibit telomerase activity. Therefore, it offers a cost-effective, label-free and reliable high-throughput way to identify G-quadruplex ligands, which holds great potential in discovering telomerase-targeted anticancer drugs.
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Affiliation(s)
- Luzhu Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Yanjun Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Baoxin Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Yan Jin
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China.
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62
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Zhan C, You X, Zhang G, Zhang D. Bio-/Chemosensors and Imaging with Aggregation-Induced Emission Luminogens. CHEM REC 2016; 16:2142-60. [DOI: 10.1002/tcr.201600045] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Chi Zhan
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids; Institute of Chemistry Chinese Academy of Sciences; Beijing 100190 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Xue You
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids; Institute of Chemistry Chinese Academy of Sciences; Beijing 100190 P. R. China
- University of Chinese Academy of Sciences; Beijing 100049 P. R. China
| | - Guanxin Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids; Institute of Chemistry Chinese Academy of Sciences; Beijing 100190 P. R. China
| | - Deqing Zhang
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids; Institute of Chemistry Chinese Academy of Sciences; Beijing 100190 P. R. China
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63
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Synthesis, characterization, biological and electrochemical evaluation of novel ether based ON donor bidentate Schiff bases. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.03.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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64
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Betzer JF, Nuter F, Chtchigrovsky M, Hamon F, Kellermann G, Ali S, Calméjane MA, Roque S, Poupon J, Cresteil T, Teulade-Fichou MP, Marinetti A, Bombard S. Linking of Antitumor trans NHC-Pt(II) Complexes to G-Quadruplex DNA Ligand for Telomeric Targeting. Bioconjug Chem 2016; 27:1456-70. [PMID: 27115175 DOI: 10.1021/acs.bioconjchem.6b00079] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
G-quadruplex structures (G4) are promising anticancerous targets. A great number of small molecules targeting these structures have already been identified through biophysical methods. In cellulo, some of them are able to target either telomeric DNA and/or some sequences involved in oncogene promotors, both resulting in cancer cell death. However, only a few of them are able to bind to these structures G4 irreversibly. Here we combine within the same molecule the G4-binding agent PDC (pyridodicarboxamide) with a N-heterocyclic carbene-platinum complex NHC-Pt already identified for its antitumor properties. The resulting conjugate platinum complex NHC-Pt-PDC stabilizes strongly G-quadruplex structures in vitro, with affinity slightly affected as compared to PDC. In addition, we show that the new conjugate binds preferentially and irreversibly the quadruplex form of the human telomeric sequence with a profile in a way different from that of NHC-Pt thereby indicating that the platination reaction is oriented by stacking of the PDC moiety onto the G4-structure. In cellulo, NHC-Pt-PDC induces a significant loss of TRF2 from telomeres that is considerably more important than the effect of its two components alone, PDC and NHC-Pt, respectively.
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Affiliation(s)
- Jean-François Betzer
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Frédérick Nuter
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Mélanie Chtchigrovsky
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Florian Hamon
- CNRS UMR9187/INSERM U1196, Institut Curie, Centre Universitaire Paris XI , Bâtiments 110-112, 91405 Orsay, France
| | - Guillaume Kellermann
- INSERM UMR-S-1007, Université Paris Descartes , 45, rue des Saints Pères, 75270 Paris, France
| | - Samar Ali
- INSERM UMR-S-1007, Université Paris Descartes , 45, rue des Saints Pères, 75270 Paris, France
| | - Marie-Ange Calméjane
- INSERM UMR-S-1007, Université Paris Descartes , 45, rue des Saints Pères, 75270 Paris, France
| | - Sylvain Roque
- INSERM UMR-S-1007, Université Paris Descartes , 45, rue des Saints Pères, 75270 Paris, France
| | - Joël Poupon
- Laboratoire de Toxicologie Biologique, Hôpital Lariboisière , 2 rue Ambroise Paré, 75475 Paris, France
| | - Thierry Cresteil
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France.,Université Paris-Sud d'Innovation Thérapeutique , 5 rue J.B. Clément, 92290 Châtenay-Malabry, France
| | - Marie-Paule Teulade-Fichou
- CNRS UMR9187/INSERM U1196, Institut Curie, Centre Universitaire Paris XI , Bâtiments 110-112, 91405 Orsay, France
| | - Angela Marinetti
- Institut de Chimie des Substances Naturelles, CNRS UPR2301, Université Paris-Sud, Université Paris-Saclay , 1, av. de la Terrasse, 91198 Gif-sur-Yvette, France
| | - Sophie Bombard
- CNRS UMR9187/INSERM U1196, Institut Curie, Centre Universitaire Paris XI , Bâtiments 110-112, 91405 Orsay, France.,INSERM UMR-S-1007, Université Paris Descartes , 45, rue des Saints Pères, 75270 Paris, France
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65
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Design, synthesis, crystallization and biological evaluation of new symmetrical biscationic compounds as selective inhibitors of human Choline Kinase α1 (ChoKα1). Sci Rep 2016; 6:23793. [PMID: 27029499 PMCID: PMC4814829 DOI: 10.1038/srep23793] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Accepted: 03/14/2016] [Indexed: 01/20/2023] Open
Abstract
A novel family of compounds derivative of 1,1′-(((ethane-1,2-diylbis(oxy))bis(4,1-phenylene))bis(methylene))-bispyridinium or –bisquinolinium bromide (10a-l) containing a pair of oxygen atoms in the spacer of the linker between the biscationic moieties, were synthesized and evaluated as inhibitors of choline kinase against a panel of cancer-cell lines. The most promising compounds in this series were 1,1′-(((ethane-1,2-diylbis(oxy))bis(4,1-phenylene))bis(methylene))bis(4-(dimethylamino)pyridinium) bromide (10a) and 1,1′-(((ethane-1,2-diylbis(oxy))bis(4,1-phenylene))bis(methylene))-bis(7-chloro-4-(pyrrolidin-1-yl)quinolinium) bromide (10l), which inhibit human choline kinase (ChoKα1) with IC50 of 1.0 and 0.92 μM, respectively, in a range similar to that of the previously reported biscationic compounds MN58b and RSM932A. Our compounds show greater antiproliferative activities than do the reference compounds, with unprecedented values of GI50 in the nanomolar range for several of the cancer-cell lines assayed, and more importantly they present low toxicity in non-tumoral cell lines, suggesting a cancer-cell-selective antiproliferative activity. Docking studies predict that the compounds interact with the choline-binding site in agreement with the binding mode of most previously reported biscationic compounds. Moreover, the crystal structure of ChoKα1 with compound 10a reveals that this compound binds to the choline-binding site and mimics HC-3 binding mode as never before.
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66
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Jana S, Santra RC, Frontera A, Drew MGB, Ortega-Castro J, Fernández D, Das S, Chattopadhyay S. Copper(II) pseudohalide complexes with isomeric N2O donor Schiff base ligands: Synthesis, characterization and molecular dynamics simulations of interactions with DNA. ChemistrySelect 2016. [DOI: 10.1002/slct.201500018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Subrata Jana
- Department of Chemistry; Inorganic Section; Jadavpur University; Kolkata - 700 032 India
| | - Ramesh Chandra Santra
- Department of Chemistry; Inorganic Section; Jadavpur University; Kolkata - 700 032 India
| | - Antonio Frontera
- Departament de Química; Universitat de les Illes Balears; Crta de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares SPAIN
| | - Michael G. B. Drew
- School of Chemistry; The University of Reading; P.O. Box 224 Whiteknights Reading RG6 6AD UK
| | - Joaquín Ortega-Castro
- Departament de Química; Universitat de les Illes Balears; Crta de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares SPAIN
| | - David Fernández
- Departament de Química; Universitat de les Illes Balears; Crta de Valldemossa km 7.5 07122 Palma de Mallorca (Baleares SPAIN
| | - Saurabh Das
- Department of Chemistry; Inorganic Section; Jadavpur University; Kolkata - 700 032 India
| | - Shouvik Chattopadhyay
- Department of Chemistry; Inorganic Section; Jadavpur University; Kolkata - 700 032 India
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Okada M, Mei ZW, Imran Hossain M, Wang L, Tominaga T, Takebayashi T, Murakami M, Yasuda M, Shigehiro T, Kasai T, Mizutani A, Murakami H, El Sayed IET, Dan S, Yamori T, Seno M, Inokuchi T. Synthesis and in vitro cancer cell growth inhibition evaluation of 11-amino-modified 5-Me-indolo[2,3-b]quinolines and their COMPARE analyses. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1508-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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68
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Temperature-feedback upconversion nanocomposite for accurate photothermal therapy at facile temperature. Nat Commun 2016; 7:10437. [PMID: 26842674 PMCID: PMC4742858 DOI: 10.1038/ncomms10437] [Citation(s) in RCA: 505] [Impact Index Per Article: 63.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Accepted: 12/10/2015] [Indexed: 12/23/2022] Open
Abstract
Photothermal therapy (PTT) at present, following the temperature definition for conventional thermal therapy, usually keeps the temperature of lesions at 42-45 °C or even higher. Such high temperature kills cancer cells but also increases the damage of normal tissues near lesions through heat conduction and thus brings about more side effects and inhibits therapeutic accuracy. Here we use temperature-feedback upconversion nanoparticle combined with photothermal material for real-time monitoring of microscopic temperature in PTT. We observe that microscopic temperature of photothermal material upon illumination is high enough to kill cancer cells when the temperature of lesions is still low enough to prevent damage to normal tissue. On the basis of the above phenomenon, we further realize high spatial resolution photothermal ablation of labelled tumour with minimal damage to normal tissues in vivo. Our work points to a method for investigating photothermal properties at nanoscale, and for the development of new generation of PTT strategy.
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Sontakke VA, Lawande PP, Kate AN, Khan A, Joshi R, Kumbhar AA, Shinde VS. Antiproliferative activity of bicyclic benzimidazole nucleosides: synthesis, DNA-binding and cell cycle analysis. Org Biomol Chem 2016; 14:4136-45. [DOI: 10.1039/c6ob00527f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bicyclic benzimidazole nucleosides were synthesized from d-glucose as a starting material. DNA binding, antiproliferative activity and cell cycle analysis were performed.
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Affiliation(s)
- Vyankat A. Sontakke
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune-411007
- India
| | - Pravin P. Lawande
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune-411007
- India
| | - Anup N. Kate
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune-411007
- India
| | - Ayesha Khan
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune-411007
- India
| | - Rakesh Joshi
- Institute of Bioinformatics and Biotechnology
- Savitribai Phule Pune University
- Pune-411007
- India
| | - Anupa A. Kumbhar
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune-411007
- India
| | - Vaishali S. Shinde
- Department of Chemistry
- Savitribai Phule Pune University (formerly University of Pune)
- Pune-411007
- India
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70
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Mangerich A, Debiak M, Birtel M, Ponath V, Balszuweit F, Lex K, Martello R, Burckhardt-Boer W, Strobelt R, Siegert M, Thiermann H, Steinritz D, Schmidt A, Bürkle A. Sulfur and nitrogen mustards induce characteristic poly(ADP-ribosyl)ation responses in HaCaT keratinocytes with distinctive cellular consequences. Toxicol Lett 2015; 244:56-71. [PMID: 26383629 DOI: 10.1016/j.toxlet.2015.09.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Revised: 09/10/2015] [Accepted: 09/11/2015] [Indexed: 11/18/2022]
Abstract
Mustard agents are potent DNA alkylating agents with mutagenic, cytotoxic and vesicant properties. They include bi-functional agents, such as sulfur mustard (SM) or nitrogen mustard (mustine, HN2), as well as mono-functional agents, such as "half mustard" (CEES). Whereas SM has been used as a chemical warfare agent, several nitrogen mustard derivatives, such as chlorambucil and cyclophosphamide, are being used as established chemotherapeutics. Upon induction of specific forms of genotoxic stimuli, several poly(ADP-ribose) polymerases (PARPs) synthesize the nucleic acid-like biopolymer poly(ADP-ribose) (PAR) by using NAD(+) as a substrate. Previously, it was shown that SM triggers cellular poly(ADP-ribosyl) ation (PARylation), but so far this phenomenon is poorly characterized. In view of the protective effects of PARP inhibitors, the latter have been proposed as a treatment option of SM-exposed victims. In an accompanying article (Debiak et al., 2016), we have provided an optimized protocol for the analysis of the CEES-induced PARylation response in HaCaT keratinocytes, which forms an experimental basis to further analyze mustard-induced PARylation and its functional consequences, in general. Thus, in the present study, we performed a comprehensive characterization of the PARylation response in HaCaT cells after treatment with four different mustard agents, i.e., SM, CEES, HN2, and chlorambucil, on a qualitative, quantitative and functional level. In particular, we recorded substance-specific as well as dose- and time-dependent PARylation responses using independent bioanalytical methods based on single-cell immuno-fluorescence microscopy and quantitative isotope dilution mass spectrometry. Furthermore, we analyzed if and how PARylation contributes to mustard-induced toxicity by treating HaCaT cells with CEES, SM, and HN2 in combination with the clinically relevant PARP inhibitor ABT888. As evaluated by a novel immunofluorescence-based protocol for the detection of N7-ETE-guanine DNA adducts, the excision rate of CEES-induced DNA adducts was not affected by PARP inhibition. Furthermore, while CEES induced moderate changes in cellular NAD(+) levels, annexin V/PI flow cytometry analysis revealed that these changes did not affect CEES-induced short-term cytotoxicity 24h after treatment. In contrast, PARP inhibition impaired cell proliferation and clonogenic survival, and potentiated micronuclei formation of HaCaT cells upon CEES treatment. Similarly, PARP inhibition affected clonogenic survival of cells treated with bi-functional mustards such as SM and HN2. In conclusion, we demonstrate that PARylation plays a functional role in mustard-induced cellular stress response with substance-specific differences. Since PARP inhibitors exhibit therapeutic potential to treat SM-related pathologies and to sensitize cancer cells for mustard-based chemotherapy, potential long-term effects of PARP inhibition on genomic stability and carcinogenesis should be carefully considered when pursuing such a strategy.
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Affiliation(s)
- Aswin Mangerich
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Malgorzata Debiak
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Matthias Birtel
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Viviane Ponath
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Frank Balszuweit
- Bundeswehr Institute of Pharmacology and Toxicology, 80937 Munich, Germany
| | - Kirsten Lex
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Rita Martello
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Waltraud Burckhardt-Boer
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany
| | - Romano Strobelt
- Bundeswehr Institute of Pharmacology and Toxicology, 80937 Munich, Germany
| | - Markus Siegert
- Bundeswehr Institute of Pharmacology and Toxicology, 80937 Munich, Germany
| | - Horst Thiermann
- Bundeswehr Institute of Pharmacology and Toxicology, 80937 Munich, Germany
| | - Dirk Steinritz
- Bundeswehr Institute of Pharmacology and Toxicology, 80937 Munich, Germany; Walther-Straub-Institute of Pharmacology and Toxicology, 80336 Munich, Germany
| | - Annette Schmidt
- Bundeswehr Institute of Pharmacology and Toxicology, 80937 Munich, Germany
| | - Alexander Bürkle
- University of Konstanz, Molecular Toxicology Group, Department of Biology, 78457 Konstanz, Germany.
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Barciszewska AM, Gurda D, Głodowicz P, Nowak S, Naskręt-Barciszewska MZ. A New Epigenetic Mechanism of Temozolomide Action in Glioma Cells. PLoS One 2015; 10:e0136669. [PMID: 26309255 PMCID: PMC4550362 DOI: 10.1371/journal.pone.0136669] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 08/05/2015] [Indexed: 01/15/2023] Open
Abstract
Temozolomide (TMZ) is an oral alkylating chemotherapeutic agent that prolongs the survival of patients with glioblastoma (GBM). Despite that high TMZ potential, progression of disease and recurrence are still observed. Therefore a better understanding of the mechanism of action of this drug is necessary and may allow more durable benefit from its anti-glioma properties. Using nucleotide post-labelling method and separation on thin-layer chromatography we measured of global changes of 5-methylcytosine (m5C) in DNA of glioma cells treated with TMZ. Although m5C is not a product of TMZ methylation reaction of DNA, we analysed the effects of the drug action on different glioma cell lines through global changes at the level of the DNA main epigenetic mark. The first effect of TMZ action we observed is DNA hypermethylation followed by global demethylation. Therefore an increase of DNA methylation and down regulation of some genes expression can be ascribed to activation of DNA methyltransferases (DNMTs). On the other hand hypomethylation is induced by oxidative stress and causes uncontrolled expression of pathologic protein genes. The results of brain tumours treatment with TMZ suggest the new mechanism of modulation epigenetic marker in cancer cells. A high TMZ concentration induced a significant increase of m5C content in DNA in the short time, but a low TMZ concentration at longer time hypomethylation is observed for whole range of TMZ concentrations. Therefore TMZ administration with low doses of the drug and short time should be considered as optimal therapy.
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Affiliation(s)
- Anna-Maria Barciszewska
- Department of Neurosurgery and Neurotraumatology, Karol Marcinkowski University of Medical Sciences, Przybyszewskiego 49, 60–355, Poznan, Poland
| | - Dorota Gurda
- Institute of Bioorganic Chemistry of the Polish Academy of Sciences, Noskowskiego 12, 61–704, Poznan, Poland
| | - Paweł Głodowicz
- Institute of Bioorganic Chemistry of the Polish Academy of Sciences, Noskowskiego 12, 61–704, Poznan, Poland
| | - Stanisław Nowak
- Department of Neurosurgery and Neurotraumatology, Karol Marcinkowski University of Medical Sciences, Przybyszewskiego 49, 60–355, Poznan, Poland
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Development of constrained tamoxifen mimics and their antiproliferative properties against breast cancer cells. Bioorg Med Chem Lett 2015; 25:680-4. [DOI: 10.1016/j.bmcl.2014.11.077] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 11/11/2014] [Accepted: 11/28/2014] [Indexed: 12/14/2022]
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73
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Verma M, Luxami V, Paul K. Synthesis, in vitro evaluation and DNA interaction studies of N-allyl naphthalimide analogues as anticancer agents. RSC Adv 2015. [DOI: 10.1039/c5ra00925a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
A novel series of 2-allyl-6-substituted-benzo[de]isquinoline-1,3-diones has been synthesized and evaluated for their in vitro antitumor activities and DNA intercalation.
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Affiliation(s)
- Meenakshi Verma
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147 001
- India
| | - Vijay Luxami
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147 001
- India
| | - Kamaldeep Paul
- School of Chemistry and Biochemistry
- Thapar University
- Patiala-147 001
- India
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Yin Y, Zhao XC, Wang SJ, Gao PY, Li LZ, Ikejima T, Song SJ. Synthesis and biological evaluation of novel sarsasapogenin derivatives as potential anti-tumor agents. Steroids 2015; 93:25-31. [PMID: 25456170 DOI: 10.1016/j.steroids.2014.09.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 08/26/2014] [Accepted: 09/23/2014] [Indexed: 11/23/2022]
Abstract
Based on the fact that timosaponin A-III (TA-III) exhibits potent cytotoxic effects and has been considered as a potential anti-tumor agent, a range of novel sarsasapogenin derivatives 1, 2a-2g, 3, 4, 5, 6a-6g have been synthesized by a simple and facile synthetic route. The in vitro cytotoxic activity of these synthetic compounds has been evaluated against ten human cancer cell lines. The pharmacological results showed that most of the sarsasapogenin derivatives displayed excellent selective cytotoxicity toward the cancer cell lines. An amino group at C-3 or C-26 position of the sapogenin had a profound influence on the cytotoxic activity. In particular, compound 6c exhibited significantly inhibitory activity against A375-S2 (IC50=0.56μM) and HT1080 (IC50=0.72μM) cells. However, introducing a bromo or morpholinyl substituent at the C-3 and C-26 position of the sapogenin generally rendered it inactive against the human cancer cell lines. This research provides a theoretical reference for the exploration of new anti-tumor drugs.
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Affiliation(s)
- Yuan Yin
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China; Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Xun-Chen Zhao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China; Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Shao-Jie Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
| | - Pin-Yi Gao
- Shenyang University of Chemical Technology, Shenyang 110142, People's Republic of China
| | - Ling-Zhi Li
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China; Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Takshi Ikejima
- China-Japan Research Institute of Medical Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Shao-Jiang Song
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China; Key Laboratory of Structure-Based Drug Design & Discovery (Ministry of Education), Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
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Investigation of podophyllotoxin esters as potential anticancer agents: Synthesis, biological studies and tubulin inhibition properties. Eur J Med Chem 2015; 89:128-37. [DOI: 10.1016/j.ejmech.2014.10.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 10/14/2014] [Accepted: 10/16/2014] [Indexed: 11/18/2022]
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76
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Usha T, Middha SK, Goyal AK, Karthik M, Manoj DA, Faizan S, Goyal P, Prashanth HP, Pande V. Molecular docking studies of anti-cancerous candidates in Hippophae rhamnoides and Hippophae salicifolia. J Biomed Res 2014; 28:406-15. [PMID: 25332713 PMCID: PMC4197392 DOI: 10.7555/jbr.28.20130110] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 08/13/2013] [Accepted: 03/22/2014] [Indexed: 01/05/2023] Open
Abstract
Actinorhizal plants contain numerous antioxidants that may play a crucial role in preventing the formation of tumors. H-Ras p21, a member of the Ras-GTPase family, is a promising target to treat various kinds of cancers. An in silico docking study was carried out to identify the inhibitory potential of compounds of these plants against H-Ras by using Discovery Studio 3.5 and by using Autodock 4.2. Docking studies revealed that four compounds, isorhamnetin-7-rhamnoside, quercetin-3-glucoside-7-rhamnoside (present in H. rhamnoides), zeaxanthin, and translutein (present in H. salicifolia) significantly bind with binding energies -17.1534, -14.7936, -10.2105 and -17.2217 Kcal/mol, respectively, even though they slightly deviate from Lipinski's rule. Absorption, distribution, metabolism, excretion and toxicity (ADME/tox) analyses of these compounds and their stereoisomers showed that they were less toxic and non-mutagenic. Amongst them, isorhamntein-7-rhamnoside showed hepatotoxicity. Hence, these compounds can be further investigated in vivo to optimize their formulation and concentration and to develop potential chemical entities for the prevention and treatment of cancers.
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Affiliation(s)
- Talambedu Usha
- Department of Biochemistry and Biotechnology, Maharani Lakshmi Ammanni College For Women, Bangalore, India.
| | - Sushil Kumar Middha
- Department of Biotechnology, Bhimtal Campus, Kumaun University, Nainital, India.
| | | | - Mahesh Karthik
- Department of Biotechnology, M S Ramaiah Institute of Technology, Bangalore, Karanataka, India.
| | - DA Manoj
- Department of Biotechnology, M S Ramaiah Institute of Technology, Bangalore, Karanataka, India.
| | - Syed Faizan
- Department of Biotechnology, M S Ramaiah Institute of Technology, Bangalore, Karanataka, India.
| | - Peyush Goyal
- Department of Biotechnology, Govt. of India, New Delhi, India.
| | - HP Prashanth
- Department of Biotechnology, Sapthagiri College of Engineering, Bangalore, India.
| | - Veena Pande
- Department of Biotechnology, Bhimtal Campus, Kumaun University, Nainital, India.
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Sarma P, Ramaiah MJ, Kamal A, Bhadra U, Bhadra MP. A novel bisindole-PBD conjugate causes DNA damage induced apoptosis via inhibition of DNA repair pathway. Cancer Biol Ther 2014; 15:1320-32. [PMID: 25010292 DOI: 10.4161/cbt.29705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
DNA damage response (DDR) that includes cell cycle check points, DNA repair, apoptosis, and senescence is intimately linked with cancer. It shields an organism against cancer development when genomic integrity fails. DNA repair pathways protect the cells from tumor progression caused as a result of DNA damage induced by irradiation or due to chemotherapeutic treatment. Many promising anticancer agents have been identified that target specific DNA repair pathways in response to DNA damage thereby leading to apoptosis. Here we identified a novel bisindole-PBD conjugate that possess potent anticancer activity in breast cancer cells. Further studies aimed at understanding the mechanism of action of the molecule showed its role in DNA damage induced apoptosis via inhibition of DNA repair pathway. Trypan blue and BrdU assay exhibited a dose-dependent effect. Single-stranded DNA damage was observed by COMET assay. In addition DNA damage induced ROS generation with simultaneous activation of ATM and ATR upon compound treatment was observed. Further downregulation of Bcl-XL and activation of Bax showed DNA damage induced apoptosis in MCF-7 and MDAMB-231 cells. In conclusion, it can be summarized that bisindole-PBD conjugate induces DNA damage in a dose dependent (2, 4, and 8 μM) manner by inhibiting the DNA repair genes.
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Affiliation(s)
- Pranjal Sarma
- 1 Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India; Functional Genomics and Gene Silencing Group; Centre for Cellular and Molecular Biology; Hyderabad, India
| | - M Janaki Ramaiah
- 1 Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India
| | - Utpal Bhadra
- Functional Genomics and Gene Silencing Group; Centre for Cellular and Molecular Biology; Hyderabad, India
| | - Manika Pal Bhadra
- 1 Centre for Chemical Biology; CSIR-Indian Institute of Chemical Technology; Tarnaka, Hyderabad, India
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Lou Q, Ji L, Zhong W, Li S, Yu S, Li Z, Meng X. Synthesis and cytotoxicity evaluation of naphthalimide derived N-mustards. Molecules 2014; 19:8803-19. [PMID: 24968335 PMCID: PMC6271267 DOI: 10.3390/molecules19078803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/10/2014] [Accepted: 06/17/2014] [Indexed: 12/23/2022] Open
Abstract
A series of N-mustards, which was conjugated to mono- or bis-naphthalimides with a flexible amine link, were synthesized and evaluated for cytotoxicity against five cancer cell lines (HCT-116, PC-3, U87 MG, Hep G2 and SK-OV-3). Several compounds displayed better activities than the control compound amonafide. Further evaluations by fluorescence spectroscopy studies and DNA-interstrand cross-linking assays revealed that the derivatives showed both alkylating and intercalating properties. Among the derivatives, the bis-naphthalimide N-mustard derivative 11b was found to exhibit the highest cytotoxic activity and DNA cross-linking ability. Both 11b and 7b induce HCT-116 cell apoptosis by S phase arrest.
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Affiliation(s)
- Qinghua Lou
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Liyan Ji
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Wenhe Zhong
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Shasha Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Siwang Yu
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Zhongjun Li
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Xiangbao Meng
- State Key Laboratory of Natural and Biomimetic Drugs, Department of Chemical Biology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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Ferone D, Pivonello C, Vitale G, Zatelli MC, Colao A, Pivonello R. Molecular basis of pharmacological therapy in Cushing's disease. Endocrine 2014; 46:181-98. [PMID: 24272603 DOI: 10.1007/s12020-013-0098-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Accepted: 10/19/2013] [Indexed: 01/16/2023]
Abstract
Cushing's disease (CD) is a severe endocrine condition caused by an adrenocorticotropin (ACTH)-producing pituitary adenoma that chronically stimulates adrenocortical cortisol production and with potentially serious complications if not or inadequately treated. Active CD may produce a fourfold increase in mortality and is associated with significant morbidities. Moreover, excess mortality risk may persist even after CD treatment. Although predictors of risk in treated CD are not fully understood, the importance of early recognition and adequate treatment is well established. Surgery with resection of a pituitary adenoma is still the first line therapy, being successful in about 60-70 % of patients; however, recurrence within 2-4 years may often occur. When surgery fails, medical treatment can reduce cortisol production and ameliorate clinical manifestations while more definitive therapy becomes effective. Compounds that target hypothalamic-pituitary axis, glucocorticoid synthesis or adrenocortical function are currently used to control the deleterious effects of chronic glucocorticoid excess. In this review we describe and analyze the molecular basis of the drugs targeting the disease at central level, suppressing ACTH secretion, as well as at peripheral level, acting as adrenal inhibitors, or glucocorticoid receptor antagonists. Understanding of the underlying molecular mechanisms in CD and of glucocorticoid biology should promote the development of new targeted and more successful therapies in the future. Indeed, most of the drugs discussed have been tested in limited clinical trials, but there is potential therapeutic benefit in compounds with better specificity for the class of receptors expressed by ACTH-secreting tumors. However, long-term follow-up with management of persistent comorbidities is needed even after successful treatment of CD.
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Affiliation(s)
- Diego Ferone
- Endocrinology, Department of Internal Medicine and Medical Specialties & Center of Excellence for Biomedical Research, IRCCS AOU San Martino-IST, University of Genova, Viale Benedetto XV, 6, 16132, Genoa, Italy,
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81
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Gulakova EN, Berdnikova DV, Aliyeu TM, Fedorov YV, Godovikov IA, Fedorova OA. Regiospecific C–N Photocyclization of 2-Styrylquinolines. J Org Chem 2014; 79:5533-7. [DOI: 10.1021/jo500696n] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Elena N. Gulakova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, Russia
| | - Daria V. Berdnikova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, Russia
| | - Tseimur M. Aliyeu
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, Russia
| | - Yuri V. Fedorov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, Russia
| | - Ivan A. Godovikov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, Russia
| | - Olga A. Fedorova
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilova str., 119991 Moscow, Russia
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Shankar R, Radhika R, Thangamani D, Senthil Kumar L, Kolandaivel P. Theoretical studies on interaction of anticancer drugs (dacarbazine, procarbazine and triethylenemelamine) with normal (AT and GC) and mismatch (GG, CC, AA and TT) base pairs. MOLECULAR SIMULATION 2014. [DOI: 10.1080/08927022.2014.913098] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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83
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Temburnikar KW, Zimmermann SC, Kim NT, Ross CR, Gelbmann C, Salomon CE, Wilson GM, Balzarini J, Seley-Radtke KL. Antiproliferative activities of halogenated thieno[3,2-d]pyrimidines. Bioorg Med Chem 2014; 22:2113-22. [PMID: 24631358 PMCID: PMC4565497 DOI: 10.1016/j.bmc.2014.02.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2013] [Revised: 02/10/2014] [Accepted: 02/18/2014] [Indexed: 12/17/2022]
Abstract
The in vitro evaluation of thieno[3,2-d]pyrimidines identified halogenated compounds 1 and 2 with antiproliferative activity against three different cancer cell lines. A structure activity relationship study indicated the necessity of the chlorine at the C4-position for biological activity. The two most active compounds 1 and 2 were found to induce apoptosis in the leukemia L1210 cell line. Additionally, the compounds were screened against a variety of other microbial targets and as a result, selective activity against several fungi was also observed. The synthesis and preliminary biological results are reported herein.
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Affiliation(s)
- Kartik W Temburnikar
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Sarah C Zimmermann
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Nathaniel T Kim
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA
| | - Christina R Ross
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, 108 N. Greene Street, Baltimore, MD 21201, USA
| | - Christopher Gelbmann
- Center for Drug Design, University of Minnesota, 516 Delaware St. SE, Minneapolis, MN 55455, USA
| | - Christine E Salomon
- Center for Drug Design, University of Minnesota, 516 Delaware St. SE, Minneapolis, MN 55455, USA
| | - Gerald M Wilson
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, 108 N. Greene Street, Baltimore, MD 21201, USA
| | - Jan Balzarini
- Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat 10, B-3000 Leuven, Belgium
| | - Katherine L Seley-Radtke
- Department of Chemistry and Biochemistry, University of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, USA.
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84
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Goncalves MD, Alavi A, Torigian DA. FDG-PET/CT assessment of differential chemotherapy effects upon skeletal muscle metabolism in patients with melanoma. Ann Nucl Med 2014; 28:386-92. [PMID: 24562913 DOI: 10.1007/s12149-014-0822-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Accepted: 02/05/2014] [Indexed: 10/25/2022]
Abstract
OBJECTIVES To quantify the differential effects of chemotherapy on the metabolic activity of skeletal muscle in vivo using molecular imaging with [18F]-fluorodeoxyglucose (FDG)-positron emission tomography/computed tomography (PET/CT). METHODS In this retrospective study, 21 subjects with stage IV melanoma who underwent pre- and post-chemotherapy whole-body FDG-PET/CT imaging were included. The mean standardized uptake value (SUVmean) of 8 different skeletal muscles was measured per subject. Pre- and post-treatment measurements were then averaged across all subjects for each muscle and compared for statistically significant differences between the muscles and following different chemotherapy regimens including dacarbazine (DTIC) and temozolomide (TMZ). RESULTS Analysis of FDG-PET/CT images reliably detected changes in skeletal muscle metabolic activity based on muscle location. The percent change in metabolic activity of each skeletal muscle in each subject following chemotherapy was observed to be related to the type of chemotherapy received. Subjects receiving DTIC generally had a decrease in metabolic activity of all muscle groups, whereas subjects receiving TMZ generally had an increase in muscle activity of all muscle groups. CONCLUSION FDG-PET/CT can reveal baseline metabolic differences between different muscles of the body. Different chemotherapies are associated with differential changes in the metabolic activity of skeletal muscle, which can be detected and quantified with FDG-PET/CT.
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Affiliation(s)
- Marcus D Goncalves
- Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce Street, Philadelphia, PA, 19104, USA
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85
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Tyagi M, Patro BS, Chattopadhyay S. Mechanism of the malabaricone C-induced toxicity to the MCF-7 cell line. Free Radic Res 2014; 48:466-77. [DOI: 10.3109/10715762.2014.886328] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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86
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Kar RK, Suryadevara P, Jana J, Bhunia A, Chatterjee S. Novel G-quadruplex stabilizing agents: in-silico approach and dynamics. J Biomol Struct Dyn 2013; 31:1497-518. [DOI: 10.1080/07391102.2012.742246] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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87
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Zhang P, Zheng BB, Wang HY, Chen JH, Liu XY, Guo XL. DLJ14, a novel chemo-sensitization agent, enhances therapeutic effects of adriamycin against MCF-7/A cells both in vitro and in vivo. ACTA ACUST UNITED AC 2013; 66:398-407. [PMID: 24533823 DOI: 10.1111/jphp.12168] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Accepted: 09/24/2013] [Indexed: 12/01/2022]
Abstract
OBJECTIVES We investigated the chemo-sensitization of a ligustrazine derivate, (E)-2-(2, 4-dimethoxystyryl)-3, 5, 6-trimethylpyrazine (DLJ14) on Adriamycin (Adr, Wanle, Shenzhen, China)-resistant human breast cancer (MCF-7/A) cells both in vivo and in vitro. METHODS The antitumour effects of DLJ14 and Adr was observed in MCF-7/A cells by 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay in vitro and was evaluated by MCF-7/A xenografts in nude mice. The intracellular Adr accumulation was assessed by mean fluorescence intensity of Adr. The messenger RNA level of glutathione (GSH) S-transferase (GST)π in MCF-7/A cells was determined by real-time reverse transcription PCR assay. The expression of GSTπ, c-jun NH2 -terminal kinase (JNK) and phosphor-JNK (p-JNK) was detected by Western blotting method. KEY FINDINGS The MTT results showed that DLJ14 exhibited a weak inhibition on proliferation of both MCF-7 and MCF-7/A cells, in contrast with the strong inhibition of verapamil. When DLJ14 is combined with Adr, the inhibitory effect on MCF-7/A cells and MCF-7/A xenografts was enhanced significantly through increasing intracellular accumulation of Adr by inhibition of GSH level and the activity of GSH peroxidase and GST. Moreover, DLJ14 could downregulate the expression of GSTπ and increase the expression of JNK and p-JNK in MCF-7/A cells or in xenografts. CONCLUSION DLJ14 is a promising chemo-sensitization candidate for the reversal of multidrug resistance in cancers.
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Affiliation(s)
- Peng Zhang
- Department of Pharmacology, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, Jinan, China
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88
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DNA-binding of nickel(II), copper(II) and zinc(II) complexes: Structure–affinity relationships. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.02.023] [Citation(s) in RCA: 203] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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89
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Artese A, Costa G, Ortuso F, Parrotta L, Alcaro S. Identification of new natural DNA G-quadruplex binders selected by a structure-based virtual screening approach. Molecules 2013; 18:12051-70. [PMID: 24084014 PMCID: PMC6270229 DOI: 10.3390/molecules181012051] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 09/18/2013] [Accepted: 09/22/2013] [Indexed: 02/06/2023] Open
Abstract
The G-quadruplex DNA structures are mainly present at the terminal portion of telomeres and can be stabilized by ligands able to recognize them in a specific manner. The recognition process is usually related to the inhibition of the enzyme telomerase indirectly involved and over-expressed in a high percentage of human tumors. There are several ligands, characterized by different chemical structures, already reported in the literature for their ability to bind and stabilize the G-quadruplex structures. Using the structural and biological information available on these structures; we performed a high throughput in silico screening of commercially natural compounds databases by means of a structure-based approach followed by docking experiments against the human telomeric sequence d[AG₃(T₂AG₃)₃]. We identified 12 best hits characterized by different chemical scaffolds and conformational and physicochemical properties. All of them were associated to an improved theoretical binding affinity with respect to that of known selective G-binders. Among these hits there is a chalcone derivative; structurally very similar to the polyphenol butein; known to remarkably inhibit the telomerase activity.
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Affiliation(s)
- Anna Artese
- Dipartimento di Scienze della Salute, Università degli Studi "Magna Græcia", Campus "S. Venuta", Viale Europa, Germaneto, Catanzaro 88100, Italy.
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90
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Resonance light scattering technique as a new tool to determine the binding mode of anticancer drug oridonin to DNA. Eur J Med Chem 2013; 66:380-7. [DOI: 10.1016/j.ejmech.2013.05.042] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 05/28/2013] [Accepted: 05/29/2013] [Indexed: 12/23/2022]
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91
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Ito M, Ohba S, Gaensler K, Ronen SM, Mukherjee J, Pieper RO. Early Chk1 phosphorylation is driven by temozolomide-induced, DNA double strand break- and mismatch repair-independent DNA damage. PLoS One 2013; 8:e62351. [PMID: 23667469 PMCID: PMC3646831 DOI: 10.1371/journal.pone.0062351] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Accepted: 03/21/2013] [Indexed: 01/06/2023] Open
Abstract
Temozolomide (TMZ) is a DNA methylating agent used to treat brain cancer. TMZ-induced O6-methylguanine adducts, in the absence of repair by O6-methylguanine DNA methyltransferase (MGMT), mispair during DNA replication and trigger cycles of futile mismatch repair (MMR). Futile MMR in turn leads to the formation of DNA single and double strand breaks, Chk1 and Chk2 phosphorylation/activation, cell cycle arrest, and ultimately cell death. Although both pChk1 and pChk2 are considered to be biomarkers of TMZ-induced DNA damage, cell-cycle arrest, and TMZ induced cytotoxicity, we found that levels of pChk1 (ser345), its downstream target pCdc25C (ser216), and the activity of its upstream activator ATR, were elevated within 3 hours of TMZ exposure, long before the onset of TMZ-induced DNA double strand breaks, Chk2 phosphorylation/activation, and cell cycle arrest. Furthermore, TMZ-induced early phosphorylation of Chk1 was noted in glioma cells regardless of whether they were MGMT-proficient or MGMT-deficient, and regardless of their MMR status. Early Chk1 phosphorylation was not associated with TMZ-induced reactive oxygen species, but was temporally associated with TMZ-induced alkalai-labile DNA damage produced by the non-O6-methylguanine DNA adducts and which, like Chk1 phosphorylation, was transient in MGMT-proficient cells but persistent in MGMT-deficient cells. These results re-define the TMZ-induced DNA damage response, and show that Chk1 phosphorylation is driven by TMZ-induced mismatch repair-independent DNA damage independently of DNA double strand breaks, Chk2 activation, and cell cycle arrest, and as such is a suboptimal biomarker of TMZ-induced drug action.
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Affiliation(s)
- Motokazu Ito
- Department of Neurological Surgery, University of California-San Francisco, San Francisco, California, United States of America
- The Brain Tumor Research Center, University of California-San Francisco, San Francisco, California, United States of America
| | - Shigeo Ohba
- Department of Neurological Surgery, University of California-San Francisco, San Francisco, California, United States of America
- The Brain Tumor Research Center, University of California-San Francisco, San Francisco, California, United States of America
| | - Karin Gaensler
- Department of Hematology/Oncology, University of California-San Francisco, San Francisco, California, United States of America
| | - Sabrina M. Ronen
- Department of Radiology and Biomedical Imaging, University of California-San Francisco, San Francisco, California, United States of America
- The Brain Tumor Research Center, University of California-San Francisco, San Francisco, California, United States of America
| | - Joydeep Mukherjee
- Department of Neurological Surgery, University of California-San Francisco, San Francisco, California, United States of America
- The Brain Tumor Research Center, University of California-San Francisco, San Francisco, California, United States of America
| | - Russell O. Pieper
- Department of Neurological Surgery, University of California-San Francisco, San Francisco, California, United States of America
- The Brain Tumor Research Center, University of California-San Francisco, San Francisco, California, United States of America
- * E-mail: .
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92
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Batisse M, Raverot G, Maqdasy S, Durando X, Sturm N, Montoriol PF, Kemeny JL, Chazal J, Trouillas J, Tauveron I. Aggressive silent GH pituitary tumor resistant to multiple treatments, including temozolomide. Cancer Invest 2013; 31:190-6. [PMID: 23477586 DOI: 10.3109/07357907.2013.775293] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Temozolomide (TMZ) has been proposed as a therapeutic option in aggressive pituitary tumors. Among the published cases, GH expressing tumors were rare. We describe a patient with initially benign silent GH adenoma that transformed into an aggressive GH secreting tumor resistant to usual therapy. MGMT expression was high and the MGMT promoter was unmethylated. Before this aggressive course, patient received three cycles of TMZ; no response was observed. Four cases of GH aggressive tumor treated by TMZ have been reported. Response to TMZ was observed in one of these four patients. Predictive factors of failure of TMZ remain unclear.
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Affiliation(s)
- Marie Batisse
- Department Endocrinologie, CHU Clermont-Ferrand, Clermont-Ferrand, France.
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93
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Mourtada R, Fonseca SB, Wisnovsky SP, Pereira MP, Wang X, Hurren R, Parfitt J, Larsen L, Smith RAJ, Murphy MP, Schimmer AD, Kelley SO. Re-directing an alkylating agent to mitochondria alters drug target and cell death mechanism. PLoS One 2013; 8:e60253. [PMID: 23585833 PMCID: PMC3621862 DOI: 10.1371/journal.pone.0060253] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2013] [Accepted: 02/24/2013] [Indexed: 01/27/2023] Open
Abstract
We have successfully delivered a reactive alkylating agent, chlorambucil (Cbl), to the mitochondria of mammalian cells. Here, we characterize the mechanism of cell death for mitochondria-targeted chlorambucil (mt-Cbl) in vitro and assess its efficacy in a xenograft mouse model of leukemia. Using a ρ° cell model, we show that mt-Cbl toxicity is not dependent on mitochondrial DNA damage. We also illustrate that re-targeting Cbl to mitochondria results in a shift in the cell death mechanism from apoptosis to necrosis, and that this behavior is a general feature of mitochondria-targeted Cbl. Despite the change in cell death mechanisms, we show that mt-Cbl is still effective in vivo and has an improved pharmacokinetic profile compared to the parent drug. These findings illustrate that mitochondrial rerouting changes the site of action of Cbl and also alters the cell death mechanism drastically without compromising in vivo efficacy. Thus, mitochondrial delivery allows the exploitation of Cbl as a promiscuous mitochondrial protein inhibitor with promising therapeutic potential.
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Affiliation(s)
- Rida Mourtada
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Sonali B. Fonseca
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
| | - Simon P. Wisnovsky
- Department of Biochemistry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Mark P. Pereira
- Department of Biochemistry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Xiaoming Wang
- Princess Margaret Hospital, Ontario Cancer Institute, Campbell Family Cancer Research Institute, Toronto, Ontario, Canada
| | - Rose Hurren
- Princess Margaret Hospital, Ontario Cancer Institute, Campbell Family Cancer Research Institute, Toronto, Ontario, Canada
| | - Jeremy Parfitt
- Department of Pathology, University of Western Ontario, London, Ontario, Canada
| | - Lesley Larsen
- Department of Chemistry, University of Otago, Dunedin, New Zealand
| | | | - Michael P. Murphy
- Medical Research Council Mitochondrial Biology Unit, Wellcome Trust/Medical Research Council Building, Cambridge, United Kingdom
| | - Aaron D. Schimmer
- Princess Margaret Hospital, Ontario Cancer Institute, Campbell Family Cancer Research Institute, Toronto, Ontario, Canada
| | - Shana O. Kelley
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada
- Department of Biochemistry, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
- * E-mail:
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94
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Molecular dynamic simulations of Co(III) and Ru(II) polypyridyl complexes and docking studies with dsDNA. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0540-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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95
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6r, a novel oxadiazole analogue of ethacrynic acid, exhibits antitumor activity both in vitro and in vivo by induction of cell apoptosis and S-phase arrest. Biomed Pharmacother 2013. [DOI: 10.1016/j.biopha.2012.10.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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96
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Banerjee S, Veale EB, Phelan CM, Murphy SA, Tocci GM, Gillespie LJ, Frimannsson DO, Kelly JM, Gunnlaugsson T. Recent advances in the development of 1,8-naphthalimide based DNA targeting binders, anticancer and fluorescent cellular imaging agents. Chem Soc Rev 2013; 42:1601-18. [DOI: 10.1039/c2cs35467e] [Citation(s) in RCA: 492] [Impact Index Per Article: 44.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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97
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Banerjee S, Kitchen JA, Gunnlaugsson T, Kelly JM. The effect of the 4-amino functionality on the photophysical and DNA binding properties of alkyl-pyridinium derived 1,8-naphthalimides. Org Biomol Chem 2013; 11:5642-55. [DOI: 10.1039/c3ob40370j] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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98
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Hou T, Wang X, Liu X, Liu S, Du Z, Li F. A label-free and colorimetric turn-on assay for coralyne based on coralyne-induced formation of peroxidase-mimicking split DNAzyme. Analyst 2013; 138:4728-31. [DOI: 10.1039/c3an01024d] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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99
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Moseley CK, Carlin SM, Neelamegam R, Hooker JM. An efficient and practical radiosynthesis of [11C]temozolomide. Org Lett 2012; 14:5872-5. [PMID: 23151019 DOI: 10.1021/ol302791x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Temozolomide (TMZ) is a prodrug for an alkylating agent used for the treatment of malignant brain tumors. A positron emitting version, [(11)C]TMZ, has been utilized to help elucidate the mechanism and biodistribution of TMZ. Challenges in [(11)C]TMZ synthesis and reformulation make it difficult for routine production. A highly reproducible one-pot radiosynthesis of [(11)C]TMZ with a radiochemical yield of 17 ± 5% and ≥97% radiochemical purity is reported.
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Affiliation(s)
- Christian K Moseley
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Harvard Medical School, Charlestown, Massachusetts 02129, USA
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100
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Nanjunda R, Owens EA, Mickelson L, Alyabyev S, Kilpatrick N, Wang S, Henary M, Wilson WD. Halogenated pentamethine cyanine dyes exhibiting high fidelity for G-quadruplex DNA. Bioorg Med Chem 2012; 20:7002-11. [PMID: 23127491 DOI: 10.1016/j.bmc.2012.10.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2012] [Revised: 10/05/2012] [Accepted: 10/10/2012] [Indexed: 11/29/2022]
Abstract
Design and optimization of quadruplex-specific small molecules is developing into an attractive strategy for anti-cancer therapeutics with some promising candidates in clinical trials. A number of therapeutically favorable features of cyanine molecules can be effectively exploited to develop them as promising quadruplex-targeting agents. Herein, the design, synthesis and evaluation of a series of dimethylindolenine cyanine dyes with varying halogen substitutions are reported. Their interactions with telomeric and c-myc quadruplexes as well as a reference duplex sequence have been evaluated using thermal melting, biosensor-surface plasmon resonance, circular dichroism, isothermal titration calorimetry and mass spectrometry. Thermal melting analysis indicates that these ligands exhibit significant quadruplex stabilization and a very low duplex binding, with the dimethyl incorporation of paramount importance for decreased duplex affinity. Circular dichroism studies showed that the interaction of cyanines with quadruplex structures are primarily through stacking at one or both ends of the terminal tetrads with the two (trimethylammonium)propyl groups interacting in the accessible quadruplex grooves. Surface plasmon resonance and mass spectral studies shows the formation of an initial strong 1:1 complex followed by a significantly weaker secondary binding. Isothermal calorimetry studies show that the interaction of cyanines is predominantly entropy driven. In line with the design principles, this work provides new insights for further developing potent, highly selective cyanines as promising quadruplex-specific agents.
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Affiliation(s)
- Rupesh Nanjunda
- Department of Chemistry, Georgia State University, Atlanta, GA 30303, USA
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