1
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Li DZ, Fu ZD, Liu HY, Pan XD. Facile synthesis and cytotoxicity of substituted uracil-1'( N)-acetic acid and 4-pyridone-1'( N)-acetic acid esters of 20(S)-camptothecins. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2024; 26:259-268. [PMID: 38347748 DOI: 10.1080/10286020.2023.2300374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 12/25/2023] [Indexed: 04/08/2024]
Abstract
A series of novel substituted uracil-1'(N)-acetic acid esters (5-9) and 4-pyridone-1'(N)-acetic acid esters (10-11) of 20(S)-camptothecins (CPTs) have been synthesized by the acylation method. All of these new esters were assayed for in vitro cytotoxicity against five human cancer cell lines A549, Bel7402, BGC-823, HCT-8 and A2780. The in vitro bioassay results showed that all the synthesized compounds 5-11 had cytotoxities that were higher than TPT and comparable to CPT on these five tumor cell lines, some of them even showed comparable or superior cytotoxic activity to CPT. The in vitro data exhibited the cytotoxicity of the ester depended on that of its parent compound. The ester 5, 6, 8, 10, 11 even possessed the cytotoxity activity comparable to or even a little better than CPT on A549, HCT-8 and A2780. The compound 11 had the same level of cytoxity on Bel7402 as that of CPT. Here the synthesis and the in vitro antitumor evaluation of a series of novel 20-O-linked substituted uracil-1'(N)-acetic acid and 4-pyridone-1'(N)-acetic acid esters derivatives of CPTs are reported.
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Affiliation(s)
- Di-Zao Li
- School of Traditional Chinese Medicine, Beijing Key Laboratory of TCM Syndrome and Formula, and Key Laboratory of TCM Syndrome and Formula, Ministry of Education, Beijing University of Chinese Medicine, Beijing 100029, China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhao-Di Fu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hong-Yan Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Xian-Dao Pan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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2
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Anti-tumor effects and mechanism of a novel camptothecin derivative YCJ100. Life Sci 2022; 311:121105. [DOI: 10.1016/j.lfs.2022.121105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/08/2022] [Accepted: 10/16/2022] [Indexed: 11/18/2022]
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3
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Synthesis, in vitro and in silico antitumor evaluation of 3-(2,6-dichlorophenyl)-1,5-diphenylpentane-1,5‑dione: Structure, spectroscopic, RDG, Hirshfeld and DFT based analyses. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132002] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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4
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Ferreira LOA, Molnár S, Martins FT, Perjési P, Keng Queiroz LH, Noda-Perez C. Michael addition reaction of symmetrically halogenated bischalcones with reduced glutathione assessed by RP-HPLC and RP-HPLC-ESI-MS. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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5
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Burmaoglu S, Gobek A, Aydin BO, Yurtoglu E, Aydin BN, Ozkat GY, Hepokur C, Ozek NS, Aysin F, Altundas R, Algul O. Design, synthesis and biological evaluation of novel bischalcone derivatives as potential anticancer agents. Bioorg Chem 2021; 111:104882. [PMID: 33839582 DOI: 10.1016/j.bioorg.2021.104882] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/26/2021] [Accepted: 03/28/2021] [Indexed: 01/17/2023]
Abstract
Building on our previous work that discovered chalcone as a promising pharmacophore for anticancer activity, we have various other chalcone derivatives and have synthesized a series of novel bischalcone to explore their anticancer activity. Among all tested compounds, compounds 6a, 6b, and 6c showed the highest antiproliferative activity against A-549 cancer cell lines with the average IC50 values of 4.18, 4.52, and 5.05 µM, respectively. Moreover, compound 6c showed high antiproliferative activity against the Caco-2 cell line; thus, it was 2- and 4-fold more active than the reference compounds, i.e., methotrexate and capecitabine. Compound 6a also induced cell-cycle arrest in the S phase, whereas compounds 6b and 6c were observed to stop at the G0/G1 phase. Thereafter, we evaluated that compound 6c also had the highest apoptosis/necrosis ratio than other compounds and the standard compound. The anticancer property of the 6c was also supported by molecular docking studies carried out on the EGFR and HER2 receptors. Overall, we expect that these compounds can be further developed for the potential treatment of lung cancer.
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Affiliation(s)
- Serdar Burmaoglu
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey.
| | - Arzu Gobek
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Busra Ozturk Aydin
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Emine Yurtoglu
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Busra Nur Aydin
- Department of Chemistry, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Gozde Yalcin Ozkat
- Recep Tayyip Erdogan University, Faculty of Engineering, Bioengineering Department, Rize 53100, Turkey
| | - Ceylan Hepokur
- Department of Basic Pharmaceutical Sciences, Division of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, 58100 Sivas, Turkey
| | - Nihal Simsek Ozek
- Department of Biology, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey; East Anatolia High Technology Application and Research Center, Atatürk University, 25240 Erzurum, Turkey
| | - Ferhunde Aysin
- Department of Basic Pharmaceutical Sciences, Division of Biochemistry, Faculty of Pharmacy, Sivas Cumhuriyet University, 58100 Sivas, Turkey; Department of Biology, Faculty of Science, Atatürk University, 25240 Erzurum, Turkey
| | - Ramazan Altundas
- Department of Chemistry, Faculty of Science, Gebze Technical University, 41400 Gebze-Kocaeli, Turkey
| | - Oztekin Algul
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mersin University, 33169 Mersin, Turkey.
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6
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Khalifa ME, El Azab IH, Gobouri AA, Mersal GA, Alharthi S, Saracoglu M, Kandemirli F, Ryl J, Amin MA. Adsorption behavior and corrosion inhibitive characteristics of newly synthesized cyano-benzylidene xanthenes on copper/sodium hydroxide interface: Electrochemical, X-ray photoelectron spectroscopy and theoretical studies. J Colloid Interface Sci 2020; 580:108-125. [DOI: 10.1016/j.jcis.2020.06.110] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 06/21/2020] [Accepted: 06/25/2020] [Indexed: 10/23/2022]
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7
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Huang X, Wang M, You Q, Kong J, Zhang H, Yu C, Wang Y, Wang H, Huang R. Synthesis, mechanisms of action, and toxicity of novel aminophosphonates derivatives conjugated irinotecan in vitro and in vivo as potent antitumor agents. Eur J Med Chem 2020; 189:112067. [PMID: 31972391 DOI: 10.1016/j.ejmech.2020.112067] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 01/17/2023]
Abstract
Twenty novel aminophosphonates derivatives (5a-5j and 6a-6j) conjugated irinotecan were synthesized through esterification reaction, and evaluated their anticancer activities using MTT assay. In vitro evaluation revealed that they displayed similar or superior cytotoxicity compared to the positive drug irinotecan against A549, MCF-7, SK-OV-3, MG-63, U2OS and multidrug-resistant (MDR) SK-OV-3/CDDP cancer cell lines. Among them, 9b displayed the most potent activity, with IC50 values of 0.92-3.23 μM against five human cancer cells, which exhibited a 5.4-19.1-fold increase in activity compared to the reference drug irinotecan, respectively. Moreover, cellular mechanism studies suggested that 9b arrested cell cycle at S stage and induced cell apoptosis along with the decrease of mitochondrial membrane potential (MMP). Interestingly, 9b significantly inhibited tumor growth in SK-OV-3 xenograft models in vivo without apparent toxicity, which was better than the positive drug irinotecan. Taken together, 9b possessed potent antitumor activity and may be a promising candidate for the potential treatment of human ovarian cancer cells.
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Affiliation(s)
- Xiaochao Huang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China; College of Biotechnology, Guilin Medical University, Guilin, 541004, China; State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin, 541004, China.
| | - Meng Wang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Qinghong You
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Jing Kong
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Haijiang Zhang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Chunhao Yu
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Yanming Wang
- Jiangsu Key Laboratory of Regional Resource Exploitation and Medicinal Research, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Hengshan Wang
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin, 541004, China.
| | - Rizhen Huang
- College of Biotechnology, Guilin Medical University, Guilin, 541004, China.
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8
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Hadavand Mirzaei H, Jassbi AR, Pirhadi S, Firuzi O. Study of the mechanism of action, molecular docking, and dynamics of anticancer terpenoids from Salvia lachnocalyx. J Recept Signal Transduct Res 2020; 40:24-33. [PMID: 31913736 DOI: 10.1080/10799893.2019.1710847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Among specialized metabolites, terpenoids are well-known for their cytotoxic activity. Several of them have been isolated from sage plants and assayed for their potential therapeutic use against cancer. In this study, we report the effects of three potent anticancer terpenoids previously isolated from Salvia lachnocalyx, including geranyl farnesol (1), sahandinone (2), and 4-dehydrosalvilimbinol (3) on cancer cell cycle alterations and reactive oxygen species (ROS) production. Interactions of compounds 1-3 with topoisomerase I were also investigated by using molecular docking and dynamics simulation. Accumulation of cells in sub-G1 phase of the cell cycle indicated that all tested compounds induce apoptosis in MOLT-4 cancer cells. Measurement of ROS production demonstrated that this mechanism is not involved in the induction of apoptosis. We suggest topoisomerase I inhibition as the mechanism of cytotoxic activity of compounds 1-3 based on docking and molecular dynamics (MD) calculations. These natural terpenoids could be considered as good candidates for further development as anticancer agents.
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Affiliation(s)
- Hossein Hadavand Mirzaei
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.,Department of Molecular Physiology, Agricultural Biotechnology Research Institute of Iran, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Amir Reza Jassbi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Somayeh Pirhadi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Omidreza Firuzi
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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9
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Lima RS, Perez CN, da Silva CC, Santana MJ, Queiroz Júnior LH, Barreto S, de Moraes MO, Martins FT. Structure and cytotoxic activity of terpenoid-like chalcones. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2016.02.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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10
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Sallum LO, Siqueira VL, Custodio JMF, Borges NM, Lima AP, Abreu DC, S. Lacerda EDP, Lima RS, M. de Oliveira A, Camargo AJ, Napolitano HB. Molecular modeling of cytotoxic activity of a new terpenoid-like bischalcone. NEW J CHEM 2019. [DOI: 10.1039/c9nj03452h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This study describes the synthesis and structure of (1E,4E)-1-(3-chlorophenyl)-5-(2,6,6-trimethylcyclohex-1-en-1-yl)penta-1,4-dien-3-one (BC I). This work evaluates molecular docking and cytotoxic activity against two tumor cell lines.
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Affiliation(s)
- Lóide O. Sallum
- Grupo de Química Teórica e Estrutural
- Universidade Estadual de Goiás
- Anápolis
- Brazil
| | | | - Jean M. F. Custodio
- Grupo de Química Teórica e Estrutural
- Universidade Estadual de Goiás
- Anápolis
- Brazil
| | - Nádia M. Borges
- Grupo de Química Teórica e Estrutural
- Universidade Estadual de Goiás
- Anápolis
- Brazil
| | - Aliny P. Lima
- Faculdade do Instituto Brasil
- Anápolis
- Brazil
- Instituto de Ciências Biológicas
- Universidade Federal de Goiás
| | - Davi C. Abreu
- Instituto de Ciências Biológicas
- Universidade Federal de Goiás
- Goiânia
- Brazil
| | | | | | | | - Ademir J. Camargo
- Grupo de Química Teórica e Estrutural
- Universidade Estadual de Goiás
- Anápolis
- Brazil
| | - Hamilton B. Napolitano
- Grupo de Química Teórica e Estrutural
- Universidade Estadual de Goiás
- Anápolis
- Brazil
- Laboratório de Novos Materiais
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11
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Manikandan TS, Ramesh R, Semeril D. The Tandem C–H/N–H Activation of N-Methyl Arylamide Catalyzed by Dinuclear Pd(II) Benzhydrazone Complex: A Concise Access to Phenanthridinone. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00714] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli − 620 024, India
| | - David Semeril
- Universite de Strasbourg, Laboratoire de Chimie Inorganique Moleculaire et Catalyse, UMR 7177
CNRS, 4 rue Blaise Pascal, 67008 Strasbourg, France
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12
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Sankara Rao N, Nagesh N, Lakshma Nayak V, Sunkari S, Tokala R, Kiranmai G, Regur P, Shankaraiah N, Kamal A. Design and synthesis of DNA-intercalative naphthalimide-benzothiazole/cinnamide derivatives: cytotoxicity evaluation and topoisomerase-IIα inhibition. MEDCHEMCOMM 2018; 10:72-79. [PMID: 30774856 DOI: 10.1039/c8md00395e] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 11/01/2018] [Indexed: 01/01/2023]
Abstract
A new series of different naphthalimide-benzothiazole/cinnamide derivatives were designed, synthesized and tested for their in vitro cytotoxicity on selected human cancer cell lines. Among them, derivatives 4a and 4b with the 6-aminobenzothiazole ring and 5g with the cinnamide ring displayed potent cytotoxic activity against colon (IC50: 3.715 and 3.467 μM) and lung cancer (IC50: 4.074 and 3.890 μM) cell lines when compared to amonafide (IC50: 5.459 and 7.762 μM). Later, the DNA binding studies for these selected derivatives (by CD, UV/vis, fluorescence spectroscopy, DNA viscosity, and molecular docking) suggested that these new derivatives significantly intercalate between two strands of DNA. In addition, the most potent derivatives 4a and 4b were also found to inhibit DNA topoisomerase-II.
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Affiliation(s)
- N Sankara Rao
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . .,Academy of Scientific and Innovative Research. (AcSIR) , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India
| | - Narayana Nagesh
- CSIR-Centre for Cellular and Molecular Biology , Hyderabad 500007 , India
| | - V Lakshma Nayak
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India .
| | - Satish Sunkari
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . .,Academy of Scientific and Innovative Research. (AcSIR) , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India
| | - Ramya Tokala
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India .
| | - Gaddam Kiranmai
- CSIR-Centre for Cellular and Molecular Biology , Hyderabad 500007 , India
| | | | - Nagula Shankaraiah
- Department of Medicinal Chemistry , National Institute of Pharmaceutical Education and Research (NIPER) , Hyderabad 500 037 , India .
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India . .,Academy of Scientific and Innovative Research. (AcSIR) , CSIR-Indian Institute of Chemical Technology , Hyderabad 500 007 , India.,School of Pharmaceutical Education and Research , Jamia Hamdard , New Delhi , 110062 , India
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13
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Liu Y, Liu D, Wan W, Zhang H. In vitro mitochondria-mediated anticancer and antiproliferative effects of Annona glabra leaf extract against human leukemia cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 189:29-35. [PMID: 30278342 DOI: 10.1016/j.jphotobiol.2018.07.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/08/2018] [Accepted: 07/26/2018] [Indexed: 12/22/2022]
Abstract
We investigated the in vitro mitochondria-mediated anticancer and antiproliferative effects of extracts of Annona glabra leafs on human leukemia cells. A. glabra is a tropical tree that exhibits several clinical and pharmacological properties in humans and is effective against cancer. We investigated the antiproliferative effects of an alcoholic extract of A. glabra on MC-1010 human monocytic leukemia cells (crl-12253) based on phytochemical analyses, cell viability, free radical scavenging activity, intracellular reactive oxygen species (ROS) levels, ATP content, mitochondrial fragmentation, and cell migration assays. The results indicated the presence of flavonoids, terpenoids, glycosides, steroids, saponins, tannins, anthraquinones, and acidic compounds in extracts. Leukemia cell viability was reduced up to 28% after incubation with the extract, while the free radical reducing power and scavenging activity were significantly increased. Higher concentrations of extract significantly inhibited leukemia cell colony formation. ROS increased up to 66% following incubation with extract, while the ATP content decreased up to 31%. Condensed, fragmented, and clumped mitochondria were observed in treated cells. In flow cytometric analyses, 10.7% and 22.4% of cells were apoptotic following incubation with 80 and 100 μg/mL extract, respectively. Moreover, treated leukemia cells exhibited reduced migratory potential. Overall, the results suggest that leaf extracts of A. glabra may act as potential anticancer agents against human leukemia cells.
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Affiliation(s)
- Ying Liu
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Donghai Liu
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China.
| | - Wuqing Wan
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
| | - Hong Zhang
- Department of Pediatrics, The Second Xiangya Hospital of Central South University, Changsha, Hunan 410011, China
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14
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Sharma UK, Mohanakrishnan D, Sharma N, Equbal D, Sahal D, Sinha AK. Facile synthesis of vanillin-based novel bischalcones identifies one that induces apoptosis and displays synergy with Artemisinin in killing chloroquine resistant Plasmodium falciparum. Eur J Med Chem 2018; 155:623-638. [PMID: 29929118 DOI: 10.1016/j.ejmech.2018.06.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 06/06/2018] [Accepted: 06/09/2018] [Indexed: 11/25/2022]
Abstract
The inherent affinity of natural compounds for biological receptors has been comprehensively exploited with great success for the development of many drugs, including antimalarials. Here the natural flavoring compound vanillin has been used as an economical precursor for the synthesis of a series of novel bischalcones whose in vitro antiplasmodial activities have been evaluated against erythrocytic stages of Plasmodium falciparum. Bischalcones 9, 11 and 13 showed promising antiplasmodial activity {Chloroquine (CQ) sensitive Pf3D7 IC50 (μM): 2.0, 1.5 and 2.5 respectively}but only 13 displayed potent activities also against CQ resistant PfDd2 and PfIndo strains exhibiting resistance indices of 1.4 and 1.5 respectively. IC90 (8 μM) of 13 showed killing activity against ring, trophozoite and schizont stages. Further, 13 initiated the cascade of reactions that culminates in programmed cell death of parasites including translocation of phosphatidylserine from inner to outer membrane leaflet, loss of mitochondrial membrane potential, activation of caspase like enzyme, DNA fragmentation and chromatin condensation. The combinations of 13 + Artemisinin (ART) exhibited strong synergy (ΣFIC50:0.46 to 0.58) while 13 + CQ exhibited mild synergy (ΣFIC50: 0.7 to 0.98) to mild antagonism (ΣFIC50: 1.08 to 1.23) against PfIndo. In contrast, both combinations showed marked antagonism against Pf3D7(ΣFIC50: 1.33 to 3.34). These features of apoptosis and strong synergy with Artemisinin suggest that bischalcones possess promising antimalarial drug-like properties and may also act as a good partner drugs for artemisinin based combination therapies (ACTs) against Chloroquine resistant P. falciparum.
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Affiliation(s)
- Upendra K Sharma
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India
| | - Dinesh Mohanakrishnan
- Malaria Research Laboratory, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India
| | - Nandini Sharma
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India
| | - Danish Equbal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension Sitapur Road, Lucknow, UP, India
| | - Dinkar Sahal
- Malaria Research Laboratory, International Centre for Genetic Engineering and Biotechnology, Aruna Asaf Ali Marg, New Delhi, 110067, India.
| | - Arun K Sinha
- Natural Product Chemistry and Process Development Division, CSIR-Institute of Himalayan Bioresource Technology, Palampur, 176061, HP, India; Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Jankipuram Extension Sitapur Road, Lucknow, UP, India.
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15
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Soleimani O, Hosseinian A. Direct Synthesis of Xanthenes from Benzyl Alcohols using Choline Peroxydisulfate Ionic Liquid as a Reagent under Otherwise Solvent-Free Conditions. JOURNAL OF CHEMICAL RESEARCH 2018. [DOI: 10.3184/174751918x15295950505272] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
14-Aryl-14 H-dibenzo[ a,j]xanthenes and 1,8-dioxo-octahydroxanthenes were synthesised directly from benzyl alcohols by a tandem catalytic process using choline peroxydisulfate (ChPS). The synthesis proceeds through two steps: an oxidation of the benzyl alcohol to the corresponding benzaldehyde followed by condensation with 2-naphthol (or dimedone) to form the products. Choline bisulfate, generated in situ from ChPS, catalyses the product formation.
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Affiliation(s)
- Omid Soleimani
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas 71961, Iran
| | - Asghar Hosseinian
- Department of Chemistry, Faculty of Sciences, University of Hormozgan, Bandar Abbas 71961, Iran
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16
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Neuroprotective effect of Annona glabra extract against ethanol-induced apoptotic neurodegeneration in neonatal rats. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 181:106-114. [DOI: 10.1016/j.jphotobiol.2018.02.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/16/2018] [Accepted: 02/18/2018] [Indexed: 12/21/2022]
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17
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Design, synthesis and biological evaluation of new β-carboline-bisindole compounds as DNA binding, photocleavage agents and topoisomerase I inhibitors. Eur J Med Chem 2018; 143:1563-1577. [DOI: 10.1016/j.ejmech.2017.10.054] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 10/16/2017] [Accepted: 10/17/2017] [Indexed: 01/11/2023]
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18
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Kishore Kumar A, Sunitha V, Shankar B, Murali Krishna T, Lincoln CA, Jalapathi P. Synthesis and antimicrobial screening of novel 9-{2-[(1H-1,2,3-triazol-4-yl)methoxy]phenyl}-3,3,6,6-tetramethyl-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione derivatives. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363217090171] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Ali I, Lone MN, Aboul-Enein HY. Imidazoles as potential anticancer agents. MEDCHEMCOMM 2017; 8:1742-1773. [PMID: 30108886 PMCID: PMC6084102 DOI: 10.1039/c7md00067g] [Citation(s) in RCA: 202] [Impact Index Per Article: 28.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 03/21/2017] [Indexed: 12/19/2022]
Abstract
Cancer is a black spot on the face of humanity in this era of science and technology. Presently, several classes of anticancer drugs are available in the market, but issues such as toxicity, low efficacy and solubility have decreased the overall therapeutic indices. Thus, the search for new promising anticancer agents continues, and the battle against cancer is far from over. Imidazole is an aromatic diazole and alkaloid with anticancer properties. There is considerable interest among scientists in developing imidazoles as safe alternatives to anticancer chemotherapy. The present article describes the structural, chemical, and biological features of imidazoles. Several classes of imidazoles as anticancer agents based on their mode of action have been critically discussed. A careful observation has been made into pharmacologically active imidazoles with better or equal therapeutic effects compared to well-known imidazole-based anticancer drugs, which are available on the market. A brief discussion of the toxicities of imidazoles has been made. Finally, the current challenges and future perspectives of imidazole based anticancer drug development are conferred.
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Affiliation(s)
- Imran Ali
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ;
| | - Mohammad Nadeem Lone
- Department of Chemistry , Jamia Millia Islamia (Central University) , New Delhi-110025 , India . ;
| | - Haasan Y Aboul-Enein
- Pharmaceutical and Medicinal Chemistry Department , Pharmaceutical and Drug Industries Research Division , National Research Centre , Dokki , Giza 12622 , Egypt
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20
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Chandam D, Patravale A, Jadhav S, Deshmukh M. Low melting oxalic acid dihydrate: proline mixture as dual solvent/catalyst for synthesis of spiro[indoline-3,9′-xanthene]trione and dibarbiturate derivatives. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.05.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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21
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Rafiee F. Synthesis of phenanthridine and phenanthridinone derivatives based on Pd-catalyzed C-H activation. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3820] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Fatemeh Rafiee
- Department of Chemistry, Faculty of physic-chemistry; Alzahra University; Vanak Tehran Iran
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22
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Martino E, Della Volpe S, Terribile E, Benetti E, Sakaj M, Centamore A, Sala A, Collina S. The long story of camptothecin: From traditional medicine to drugs. Bioorg Med Chem Lett 2016; 27:701-707. [PMID: 28073672 DOI: 10.1016/j.bmcl.2016.12.085] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 12/28/2016] [Accepted: 12/29/2016] [Indexed: 12/11/2022]
Abstract
20-(S)-Camptothecin (CPT) is a natural alkaloid extracted from the bark of Camptotheca acuminata (Chinese happy tree). It acts as a DNA topoisomerase 1 poison with an interesting antitumor activity and its use is limited by low stability and solubility and unpredictable drug-drug interactions. Since the late 20th century, it has been widely used in cancer therapy and, since extraction yields from plant tissues are very low, various synthetic routes have been developed to satisfy the increase in demand for CPT. Moreover, SAR studies have allowed for the development of more potent CPT analogues topotecan and irinotecan. Unfortunately, resistance has already occurred in several tumour lines. Additional studies are needed to better understand the relationship between substituents and resistance, its clinical relevance and the impact of related gene polymorphism. One of the latest research approaches focuses on modifying the delivery mode to improve tumour cell uptake and reduce toxicity.
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Affiliation(s)
- Emanuela Martino
- Department of Earth and Environmental Sciences, University of Pavia, Via S. Epifanio 14, 27100 Pavia, Italy
| | - Serena Della Volpe
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Elisa Terribile
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Emanuele Benetti
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Mirena Sakaj
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Adriana Centamore
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Andrea Sala
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy
| | - Simona Collina
- Department of Drug Sciences, Medicinal Chemistry and Pharmaceutical Technology Section, University of Pavia, Viale Taramelli 12, 27100 Pavia, Italy.
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Design, synthesis, cytotoxicity, HuTopoIIα inhibitory activity and molecular docking studies of pyrazole derivatives as potential anticancer agents. Bioorg Chem 2016; 69:77-90. [DOI: 10.1016/j.bioorg.2016.10.001] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 10/03/2016] [Accepted: 10/04/2016] [Indexed: 12/14/2022]
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24
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Li DZ, Zhang QZ, Wang CY, Zhang YL, Li XY, Huang JT, Liu HY, Fu ZD, Song HX, Lin JP, Ji TF, Pan XD. Synthesis and antitumor activity of novel substituted uracil-1'(N)-acetic acid ester derivatives of 20(S)-camptothecins. Eur J Med Chem 2016; 125:1235-1246. [PMID: 27871039 DOI: 10.1016/j.ejmech.2016.11.013] [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: 08/01/2016] [Revised: 10/30/2016] [Accepted: 11/06/2016] [Indexed: 12/18/2022]
Abstract
A series of novel substituted uracil-1'(N)-acetic acid esters (6-20) of camptothecins (CPTs) were synthesized by the acylation method. These new compounds were evaluated for in vitro antitumor activity against tumor cell lines, A549, Bel7402, BGC-823, HCT-8 and A2780. In vitro results showed that most of the derivatives exhibited comparable or superior cytotoxicity compare to CPT (1) and topotecan (TPT, 2), with 12 and 13 possessing the best efficacy. Four compounds, 9, 12, 13 and 16, were selected to be evaluated for in vivo antitumor activity against H22, BGC-823 and Bel-7402 in mice. In vivo testing results indicated that 12 and 13 had antitumor activity against mouse liver carcinoma H22 close to Paclitaxel and cyclophosphamide. 12 had similar antitumor activity against human gastric carcinoma BGC-823 in nude mice compared to irinotecan (3) and possessed better antitumor activity against human hepatocarcinoma Bel-7402 in nude mice than 2. It is also discovered that 12 showed a similar mechanism but better inhibitory activity on topoisomerase I (Topo I) compared to 2. These findings indicate that 20(S)-O-fluorouracil-1'(N)-acetic acid ester derivative of CPTs, 12, could be developed as an antitumor drug candidate for clinical trial.
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Affiliation(s)
- Di-Zao Li
- College of Pharmacy and State Key Laboratory of Medicinal Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, PR China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China
| | - Qiang-Zhe Zhang
- College of Pharmacy and State Key Laboratory of Medicinal Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, PR China
| | - Cun-Ying Wang
- Xu Zhou College of Industrial Technology, Xuzhou 221000, PR China
| | - Yan-Ling Zhang
- College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, PR China
| | - Xing-Yu Li
- College of Pharmacy and State Key Laboratory of Medicinal Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, PR China
| | - Ji-Tao Huang
- College of Pharmacy and State Key Laboratory of Medicinal Chemical Biology, State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Molecular Drug Research, Nankai University, Tianjin 300071, PR China
| | - Hong-Yan Liu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China
| | - Zhao-Di Fu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China
| | - Hua-Xian Song
- Beijing Land Medical Technology Co., Ltd, Beijing 101111, PR China
| | - Jin-Ping Lin
- Beijing Land Medical Technology Co., Ltd, Beijing 101111, PR China
| | - Teng-Fei Ji
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China.
| | - Xian-Dao Pan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, PR China.
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25
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Subba Rao AV, Vishnu Vardhan MVPS, Subba Reddy NV, Srinivasa Reddy T, Shaik SP, Bagul C, Kamal A. Synthesis and biological evaluation of imidazopyridinyl-1,3,4-oxadiazole conjugates as apoptosis inducers and topoisomerase IIα inhibitors. Bioorg Chem 2016; 69:7-19. [PMID: 27656775 DOI: 10.1016/j.bioorg.2016.09.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Revised: 09/01/2016] [Accepted: 09/02/2016] [Indexed: 12/27/2022]
Abstract
A series of imidazopyridinyl-1,3,4-oxadiazole conjugates were synthesized and investigated for their cytotoxic activity and some compounds showed promising cytotoxic activity. Compound 8q (NSC: 763639) exhibited notable growth inhibition that satisfies threshold criteria at single dose (10μM) on all human cancer cell lines. This compound was further evaluated at five dose levels (0.01, 0.1, 1, 10 and 100μM) to obtain GI50 values ranging from 1.30 to 5.64μM. Flow cytometric analysis revealed that compound 8q arrests the A549 cells in sub G1 phase followed by induction of apoptosis which was further confirmed by Annexin-V-FITC, Hoechst nuclear staining, caspase 3 activation, measurement of mitochondrial membrane potential and ROS generation. Topo II mediated DNA relaxation assay results showed that conjugate 8q could significantly inhibit the activity of topo II. Moreover, molecular docking studies also indicated binding to the topoisomerase enzyme (PDBID 1ZXN).
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Affiliation(s)
- A V Subba Rao
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - M V P S Vishnu Vardhan
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - N V Subba Reddy
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - T Srinivasa Reddy
- IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Siddiq Pasha Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Chandrakant Bagul
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500 037, India
| | - Ahmed Kamal
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Academy of Scientific and Innovative Research, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; IICT-RMIT Research Centre, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India; Department of Medicinal Chemistry, National Institute of Pharmaceutical Education & Research (NIPER), Hyderabad 500 037, India.
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26
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Rajini A, Suman C, Ajay Kumar A, Suresh S, Venkatathri N. Titanium aminophosphates as efficient, economical, and recyclable catalysts for the synthesis of xanthenediones. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1220578] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- A. Rajini
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | - C. Suman
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | - A. Ajay Kumar
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | - S. Suresh
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
| | - N. Venkatathri
- Department of Chemistry, National Institute of Technology, Warangal, Telangana, India
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27
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Sun Y, Li J, Zhao H, Tan L. Ruthenium(II) polypyridyl complexes with 1,8-naphthalimide group as DNA binder, photonuclease, and dual inhibitors of topoisomerases I and IIα. J Inorg Biochem 2016; 163:88-94. [PMID: 27470011 DOI: 10.1016/j.jinorgbio.2016.04.028] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 10/21/2022]
Abstract
Two ruthenium(II) polypyridyl complexes containing 1,8-naphthalimide group as DNA binders, photonucleases, and inhibitors of topoisomerases I and IIα are evaluated. The binding properties of [Ru(phen)2(pnip)]2+ {1; phen=1,10-phenanthroline; pnip=12-[N-(p-phenyl)-1,8-napthalimide]- imidazo[4',5'-f] [1,10]phenanthroline} and [Ru(bpy)2(pnip)]2+ (2; bpy=2,2'-bipyridine) with calf thymus DNA increases with increasing the bulkiness and hydrophobic character of ancillary ligands, although the two complexes possess high affinities for DNA via intercalation. Moreover, photoirradiation (λ=365nm) of the two complexes are found to induce strand cleavage of closed circular pBR322 plasmid DNA via singlet oxygen mechanism, while complex 1 displays more effective photocleavage activity than complex 2 under the same conditions. Topoisomerase inhibition and DNA strand passage assay reflect that complexes 1 and 2 are efficient dual poisons of topoisomerases I and IIα.
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Affiliation(s)
- Yanmei Sun
- College of Chemistry, Xiangtan University, Xiangtan, PR China
| | - Jia Li
- College of Chemistry, Xiangtan University, Xiangtan, PR China
| | - Hong Zhao
- College of Chemistry, Xiangtan University, Xiangtan, PR China
| | - Lifeng Tan
- Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education, Xiangtan University, Xiangtan, PR China.
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28
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Investigation of the mechanism and apoptotic pathway induced by 4β cinnamido linked podophyllotoxins against human lung cancer cells A549. Apoptosis 2016; 20:1518-29. [PMID: 26386574 DOI: 10.1007/s10495-015-1173-6] [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] [Indexed: 12/11/2022]
Abstract
Apoptosis is essential for normal development and the maintenance of homeostasis. It plays a necessary role to protect against carcinogenesis by eliminating damaged cells. Many studies have demonstrated that the dysregulation of apoptosis results in cancer and this provides an approach to develop therapeutic agents via inducing apoptosis. In our previous studies 4β-cinnamido linked podophyllotoxin conjugates were synthesized and evaluated for their cytotoxic activity in a panel of five human cancer cell lines and the new molecules like 17a and 17f were considered as potential leads. The cytotoxic activity was comparable to etoposide. These observations prompted us to investigate the mechanism underplaying the cytotoxic activity and apoptotic pathway induced by these compounds in human lung cancer cells A459. The results of the present study revealed that these compounds exhibited DNA topoisomerase IIα inhibition and induced mitochondrial mediated apoptosis. It was further confirmed by Mitochondrial membrane potential, Cytochrome c release, cleavage of poly (ADP-ribose) polymerase (PARP), Reactive oxygen species (ROS) generation, regulation of antiapoptotic protein Bcl-2 and pro apoptotic protein Bax studied by Western blot analysis. Annexin V-FITC assay also suggested that these compounds induced cell death by apoptosis. Pretreatment with N-acetyl-L-cysteine (NAC) prevented the generation of ROS. Further, pretreatment with NAC significantly inhibited 17a and 17f induced apoptosis, suggesting that ROS are the key mediators for 17a and 17f induced apoptosis. These data indicate that these compounds might induce apoptosis in A549 cells through a ROS mediated mitochondrial dysfunction pathway. Moreover, these compounds did not significantly inhibit the noncancerous human embryonic kidney cells, HEK-293. Docking studies also elucidate the potential of these molecules to bind to the DNA topoisomerase II. Podophyllotoxin analogs were investigated for their mechanism and apoptotic pathway against lung cancer cell line, A549. These podophyllotoxin analogs inhibited DNA topoisomerase IIα and induced mitochondrial mediated apoptosis in lung cancer cell line, A549. Western blot analysis suggested that these compounds inhibited the DNA topoisomerase IIα. Studies like, Measurement of mitochondrial membrane potential (∆Ψm), Generation of intracellular reactive oxygen species (ROS) and Annexin V-FITC assay suggested that these compounds induced mitochondrial mediated apoptosis. Pretreatment with N-acetyl-L-cysteine (NAC) suggested that ROS plays a role in 17a and 17f induced apoptosis. Further the apoptotic effect of these compounds was confirmed by western blot analysis of pro apoptotic protein Bax and antiapoptotic protein Bcl-2, Cytochrome c release and cleavage of poly (ADP-ribose) polymerase (PARP). Moreover, these compounds did not significantly inhibit the noncancerous human embryonic kidney cells, HEK-293.
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29
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Buchfellner A, Yurlova L, Nüske S, Scholz AM, Bogner J, Ruf B, Zolghadr K, Drexler SE, Drexler GA, Girst S, Greubel C, Reindl J, Siebenwirth C, Romer T, Friedl AA, Rothbauer U. A New Nanobody-Based Biosensor to Study Endogenous PARP1 In Vitro and in Live Human Cells. PLoS One 2016; 11:e0151041. [PMID: 26950694 PMCID: PMC4780744 DOI: 10.1371/journal.pone.0151041] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 02/23/2016] [Indexed: 11/22/2022] Open
Abstract
Poly(ADP-ribose) polymerase 1 (PARP1) is a key player in DNA repair, genomic stability and cell survival and it emerges as a highly relevant target for cancer therapies. To deepen our understanding of PARP biology and mechanisms of action of PARP1-targeting anti-cancer compounds, we generated a novel PARP1-affinity reagent, active both in vitro and in live cells. This PARP1-biosensor is based on a PARP1-specific single-domain antibody fragment (~ 15 kDa), termed nanobody, which recognizes the N-terminus of human PARP1 with nanomolar affinity. In proteomic approaches, immobilized PARP1 nanobody facilitates quantitative immunoprecipitation of functional, endogenous PARP1 from cellular lysates. For cellular studies, we engineered an intracellularly functional PARP1 chromobody by combining the nanobody coding sequence with a fluorescent protein sequence. By following the chromobody signal, we were for the first time able to monitor the recruitment of endogenous PARP1 to DNA damage sites in live cells. Moreover, tracing of the sub-nuclear translocation of the chromobody signal upon treatment of human cells with chemical substances enables real-time profiling of active compounds in high content imaging. Due to its ability to perform as a biosensor at the endogenous level of the PARP1 enzyme, the novel PARP1 nanobody is a unique and versatile tool for basic and applied studies of PARP1 biology and DNA repair.
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Affiliation(s)
| | | | - Stefan Nüske
- Livestock Center of the Faculty of Veterinary Medicine, Ludwig Maximilians University, Munich, Germany
| | - Armin M. Scholz
- Livestock Center of the Faculty of Veterinary Medicine, Ludwig Maximilians University, Munich, Germany
| | | | - Benjamin Ruf
- ChromoTek GmbH, IZB, Planegg, Martinsried, Germany
| | | | - Sophie E. Drexler
- Department of Radiation Oncology, Ludwig Maximilians University, Munich, Germany
| | - Guido A. Drexler
- Department of Radiation Oncology, Ludwig Maximilians University, Munich, Germany
| | - Stefanie Girst
- Institute for Applied Physics and Metrology, Bundeswehr University Munich, Neubiberg, Germany
| | - Christoph Greubel
- Institute for Applied Physics and Metrology, Bundeswehr University Munich, Neubiberg, Germany
| | - Judith Reindl
- Institute for Applied Physics and Metrology, Bundeswehr University Munich, Neubiberg, Germany
| | - Christian Siebenwirth
- Department of Radiation Oncology, Klinikum rechts der Isar, Technical University Munich, Munich, Germany
| | - Tina Romer
- ChromoTek GmbH, IZB, Planegg, Martinsried, Germany
- * E-mail:
| | - Anna A. Friedl
- Department of Radiation Oncology, Ludwig Maximilians University, Munich, Germany
- Clinical Cooperation Group ‘Personalized Radiotherapy of Head and Neck Cancer’, Helmholtz Center Munich, Neuherberg, Germany
| | - Ulrich Rothbauer
- Natural and Medical Institute at the University of Tuebingen, Reutlingen, Germany
- Pharmaceutical Biotechnology, University of Tuebingen, Tuebingen, Germany
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30
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Maleki B, Davoodi A, Azghandi MV, Baghayeri M, Akbarzadeh E, Veisi H, Ashrafi SS, Raei M. Facile synthesis and investigation of 1,8-dioxooctahydroxanthene derivatives as corrosion inhibitors for mild steel in hydrochloric acid solution. NEW J CHEM 2016. [DOI: 10.1039/c5nj02707a] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, the corrosion inhibitive performance of some 1,8-dioxooctahydroxanthene derivatives is proposed.
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Affiliation(s)
- Behrooz Maleki
- Department of Chemistry
- Hakim Sabzevari University
- Sabzevar, 96179-76487
- Iran
| | - Ali Davoodi
- Materials and Metallurgical Engineering Department
- Faculty of Engineering
- Ferdowsi University of Mashhad
- Mashhad 91775-1111
- Iran
| | - Mojtaba Vakili Azghandi
- Materials Science and Engineering Department
- Faculty of Engineering
- Bu-Ali Sina University
- Hamadan
- Iran
| | - Mehdi Baghayeri
- Department of Chemistry
- Hakim Sabzevari University
- Sabzevar, 96179-76487
- Iran
| | - Elahe Akbarzadeh
- Young Researchers and Elite Club
- Islamshahr Branch
- Islamic Azad University
- Islamshahr
- Iran
| | - Hojat Veisi
- Department of Chemistry
- Payame Noor University (PNU)
- 19395-4697 Tehran
- Iran
| | | | - Massomeh Raei
- Department of Chemistry
- Hakim Sabzevari University
- Sabzevar, 96179-76487
- Iran
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31
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Efficient synthesis of 1,8-dioxo-octahydroxanthenes catalyzed by β-cyclodextrin grafted with butyl sulfonic acid in aqueous media. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(15)60888-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Antiproliferative and Apoptosis Induction Potential of the Methanolic Leaf Extract of Holarrhena floribunda (G. Don). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:756482. [PMID: 25861368 PMCID: PMC4377504 DOI: 10.1155/2015/756482] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 01/30/2015] [Accepted: 02/09/2015] [Indexed: 12/14/2022]
Abstract
Natural plant products with potent growth inhibition and apoptosis induction properties are extensively being investigated for their cancer chemopreventive potential. Holarrhena floribunda (HF) is used in a wide range of traditional medicine practices. The present study investigated the antiproliferative and apoptosis induction potential of methanolic leaf extracts of HF against breast (MCF-7), colorectal (HT-29), and cervical (HeLa) cancer cells relative to normal KMST-6 fibroblasts. The MTT assay in conjunction with the trypan blue dye exclusion and clonogenic assays were used to determine the effects of the extracts on the cells. Caspase activities were assayed with Caspase-Glo 3/7 and Caspase-9 kits. Apoptosis induction was monitored by flow cytometry using the APOPercentage and Annexin V-FITC kits. Reactive oxygen species (ROS) was measured using the fluorogenic molecular probe 5-(and-6)-chloromethyl-2′,7′-dichlorofluorescein diacetate acetyl ester and cell cycle arrest was detected with propidium iodide. Dose-response analyses of the extract showed greater sensitivity in cancer cell lines than in fibroblast controls. Induction of apoptosis, ROS, and cell cycle arrest were time- and dose-dependent for the cancer cell lines studied. These findings provide a basis for further studies on the isolation, characterization, and mechanistic evaluation of the bioactive compounds responsible for the antiproliferative activity of the plant extract.
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33
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Mosaddegh E, Hosseininasab FA, Hassankhani A. Eggshell/Fe3O4 nanocomposite: novel magnetic nanoparticles coated on porous ceramic eggshell waste as an efficient catalyst in the synthesis of 1,8-dioxo-octahydroxanthene. RSC Adv 2015. [DOI: 10.1039/c5ra17639e] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An eggshell/Fe3O4 nanocomposite was synthesized via an economic and novel method, using recycled eggshell biowaste as a starting material and an aqueous solution of FeSO4 as a coating agent without any additional alkali or a protective atmosphere.
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Affiliation(s)
- Elaheh Mosaddegh
- Department of New Materials
- Institute of Science and High Technology and Environmental Sciences
- Graduate University of Advanced Technology
- Kerman
- Iran
| | | | - Asadollah Hassankhani
- Department of New Materials
- Institute of Science and High Technology and Environmental Sciences
- Graduate University of Advanced Technology
- Kerman
- Iran
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Efficient non-catalytic synthesis of substituted 2,3,4,9-tetrahydro-1H-xanthen-1-ones from salicylaldehydes and dimedone. MENDELEEV COMMUNICATIONS 2015. [DOI: 10.1016/j.mencom.2015.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Wu SY, Pan SL, Xiao ZY, Hsu JL, Chen MC, Lee KH, Teng CM. NPRL-Z-1, as a new topoisomerase II poison, induces cell apoptosis and ROS generation in human renal carcinoma cells. PLoS One 2014; 9:e112220. [PMID: 25372714 PMCID: PMC4221609 DOI: 10.1371/journal.pone.0112220] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 10/09/2014] [Indexed: 11/21/2022] Open
Abstract
NPRL-Z-1 is a 4β-[(4"-benzamido)-amino]-4'-O-demethyl-epipodophyllotoxin derivative. Previous reports have shown that NPRL-Z-1 possesses anticancer activity. Here NPRL-Z-1 displayed cytotoxic effects against four human cancer cell lines (HCT 116, A549, ACHN, and A498) and exhibited potent activity in A498 human renal carcinoma cells, with an IC50 value of 2.38 µM via the MTT assay. We also found that NPRL-Z-1 induced cell cycle arrest in G1-phase and detected DNA double-strand breaks in A498 cells. NPRL-Z-1 induced ataxia telangiectasia-mutated (ATM) protein kinase phosphorylation at serine 1981, leading to the activation of DNA damage signaling pathways, including Chk2, histone H2AX, and p53/p21. By ICE assay, the data suggested that NPRL-Z-1 acted on and stabilized the topoisomerase II (TOP2)-DNA complex, leading to TOP2cc formation. NPRL-Z-1-induced DNA damage signaling and apoptotic death was also reversed by TOP2α or TOP2β knockdown. In addition, NPRL-Z-1 inhibited the Akt signaling pathway and induced reactive oxygen species (ROS) generation. These results demonstrated that NPRL-Z-1 appeared to be a novel TOP2 poison and ROS generator. Thus, NPRL-Z-1 may present a significant potential anticancer candidate against renal carcinoma.
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Affiliation(s)
- Szu-Ying Wu
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shiow-Lin Pan
- The Ph.D. program for Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Zhi-Yan Xiao
- Beijing Key Laboratory of Active Substance Discovery and Drug ability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jui-Ling Hsu
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Mei-Chuan Chen
- The Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs, College of Pharmacy, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Pharmacognosy, Taipei Medical University, Taipei, Taiwan
| | - Kuo-Hsiung Lee
- Natural Products Research Laboratories, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, United States of America
- Chinese Medicine Research and Development Center, China Medical University and Hospital, Taichung, Taiwan
| | - Che-Ming Teng
- Pharmacological Institute, College of Medicine, National Taiwan University, Taipei, Taiwan
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Wang MJ, Liu YQ, Chang LC, Wang CY, Zhao YL, Zhao XB, Qian K, Nan X, Yang L, Yang XM, Hung HY, Yang JS, Kuo DH, Goto M, Morris-Natschke SL, Pan SL, Teng CM, Kuo SC, Wu TS, Wu YC, Lee KH. Design, synthesis, mechanisms of action, and toxicity of novel 20(s)-sulfonylamidine derivatives of camptothecin as potent antitumor agents. J Med Chem 2014; 57:6008-18. [PMID: 25003995 PMCID: PMC4111373 DOI: 10.1021/jm5003588] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Twelve novel 20-sulfonylamidine derivatives (9a-9l) of camptothecin (1) were synthesized via a Cu-catalyzed three-component reaction. They showed similar or superior cytotoxicity compared with that of irinotecan (3) against A-549, DU-145, KB, and multidrug-resistant (MDR) KBvin tumor cell lines. Compound 9a demonstrated better cytotoxicity against MDR cells compared with that of 1 and 3. Mechanistically, 9a induced significant DNA damage by selectively inhibiting Topoisomerase (Topo) I and activating the ATM/Chk related DNA damage-response pathway. In xenograft models, 9a demonstrated significant activity without overt adverse effects at 5 and 10 mg/kg, comparable to 3 at 100 mg/kg. Notably, 9a at 300 mg/kg (i.p.) showed no overt toxicity in contrast to 1 (LD50 56.2 mg/kg, i.p.) and 3 (LD50 177.5 mg/kg, i.p.). Intact 9a inhibited Topo I activity in a cell-free assay in a manner similar to that of 1, confirming that 9a is a new class of Topo I inhibitor. 20-Sulfonylamidine 1-derivative 9a merits development as an anticancer clinical trial candidate.
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Affiliation(s)
- Mei-Juan Wang
- School of Pharmacy, Lanzhou University , Lanzhou 730000, PR China
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Polyvinylpolypyrrolidone-supported boron trifluoride: a mild and efficient catalyst for the synthesis of 1,8-dioxooctahydroxanthenes and 1,8-dioxodecahydroacridines. MONATSHEFTE FUR CHEMIE 2014. [DOI: 10.1007/s00706-014-1206-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ziogas DE. Genome-based approaches for the diagnosis of breast cancer: a review with perspective. BREAST CANCER MANAGEMENT 2014. [DOI: 10.2217/bmt.13.81] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
SUMMARY Despite progress with microarray-based gene expression profiling of multiple genes concurrently, solid biomarkers or molecular classification have not been established as a result of Phase III randomized trials. Conventional clinicopathological characteristics and single-gene defect-based molecular tools based on the old dogma of reductionist approaches and linear experimentation that have created our knowledge in biology over the past century, and still today represent the basis for the prevention, diagnosis and treatment of all diseases in clinical medicine, are saving the lives of tens of thousands of patients with breast cancer. Almost 5000 manuscripts have been published on next-generation technologies in MEDLINE in the last 3 years, with 100 of them regarding breast cancer. This review considers evidence published after 2010 and up until October 2013 of the latest studies published using high-throughput next-generation techniques in significant numbers of samples from patients with breast cancer and data from trials enrolled on ClinicalTrials.gov website. A perspective estimation of the potential and challenges of modern approaches are also explained in detail.
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Affiliation(s)
- Demosthenes E Ziogas
- Centre for Biosystems & Genomic Network Medicine, University of Ioannina, Ioannina, Greece; and Department of Surgery, General Hospital of Filiates, Filiates, GR 46300, Greece
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Ceric ammonium nitrate supported HY-zeolite: An efficient catalyst for the synthesis of 1,8-dioxo-octahydroxanthenes. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2013.11.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Peleg R, Bobilev D, Priel E. Topoisomerase I as a target of erlotinib and gefitinib: efficacy of combined treatments with camptothecin. Int J Oncol 2014; 44:934-42. [PMID: 24399039 DOI: 10.3892/ijo.2014.2244] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Accepted: 11/13/2013] [Indexed: 11/05/2022] Open
Abstract
Topoisomerases are essential nuclear enzymes that work to resolve topological problems that normally occur during DNA metabolism. Their involvement in crucial DNA associated-processes, such as replication, transcription and repair, mark them as a target of chemotherapeutic drugs such as camptothecins (CPTs). Therefore, finding other agents that may alter their activity is of great importance. Previous data showed that certain tyrosine kinase antagonists, tyrphostins, inhibit the catalytic activity of the cellular topoisomerase I (topo I). We examined the effect of clinically used tyrosine kinase inhibitors (TKIs), erlotinib and gefitinib, on topo I in breast and prostate cancer cells. While erlotinib and gefitinib inhibit cellular topo I in treated cells without affecting the levels of the enzyme protein, in vitro assays show that erlotinib, but not gefitinib, inhibits the DNA relaxation activity of purified topo I. Erlotinib was found to reduce the DNA-binding ability of topo I, however, the reduction in topo I activity in gefitinib-treated cells is probably due to post-translational modifications of the enzyme protein. A combined treatment of either erlotinib or gefitinib with CPT increased the effect of CPT on the activity of cellular topo I, which supports the increased anticancer effect observed in MCF7 cells. These results suggest that topo I is a novel target of erlotinib and a combination of TKIs with topo I inhibitors may be an effective treatment for breast cancer.
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Affiliation(s)
- Refael Peleg
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Dmitri Bobilev
- Department of Oncology, The Soroka Hospital Medical Center, Beer Sheva, Israel
| | - Esther Priel
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
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He X, Zeng L, Yang G, Xie L, Sun X, Tan L. DNA binding, photocleavage and topoisomerase inhibitory activity of polypyridyl ruthenium(II) complexes containing the same ancillary ligand and different main ligands. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2013.08.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Saadatjoo N, Golshekan M, Shariati S, Kefayati H, Azizi P. Organic/inorganic MCM-41 magnetite nanocomposite as a solid acid catalyst for synthesis of benzo[α]xanthenone derivatives. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcata.2013.05.007] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Synthesis, characterization, and application of poly(4-vinylpyridinium butane sulfonic acid) hydrogen sulfate as a novel poly(ionic liquid) and heterogeneous solid acid catalyst for the preparation of 1,8-dioxo-octahydroxanthenes. RESEARCH ON CHEMICAL INTERMEDIATES 2013. [DOI: 10.1007/s11164-013-1194-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Samantaray S, Kar P, Hota G, Mishra BG. Sulfate Grafted Iron Stabilized Zirconia Nanoparticles as Efficient Heterogenous Catalysts for Solvent-Free Synthesis of Xanthenediones under Microwave Irradiation. Ind Eng Chem Res 2013. [DOI: 10.1021/ie303648b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Satish Samantaray
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela
769008, Odisha, India
- Department of Chemistry, Temple City Institute of Technology & Engineering, Khurda 752057, Odisha, India
| | - Purabi Kar
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela
769008, Odisha, India
| | - Garudadhawj Hota
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela
769008, Odisha, India
| | - Braja Gopal Mishra
- Department of Chemistry, National Institute of Technology, Rourkela, Rourkela
769008, Odisha, India
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Kashyap M, Kandekar S, Baviskar AT, Das D, Preet R, Mohapatra P, Satapathy SR, Siddharth S, Guchhait SK, Kundu CN, Banerjee UC. Indenoindolone derivatives as topoisomerase II–inhibiting anticancer agents. Bioorg Med Chem Lett 2013; 23:934-8. [DOI: 10.1016/j.bmcl.2012.12.063] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 12/05/2012] [Accepted: 12/20/2012] [Indexed: 01/25/2023]
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Nisar M, Ali I, Raza Shah M, Badshah A, Qayum M, Khan H, Khan I, Ali S. Amberlite IR-120H as a recyclable catalyst for the synthesis of 1,8-dioxo-octahydroxanthene analogs and their evaluation as potential leishmanicidal agents. RSC Adv 2013. [DOI: 10.1039/c3ra43506g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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He X, Yang G, Sun X, Xie L, Tan L. Synthesis and Characterisation of RuII Polypyridyl Complexes: DNA-Binding, Photocleavage, and Topoisomerase I and II Inhibitory Activity. Aust J Chem 2013. [DOI: 10.1071/ch13329] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two mixed-ligand ruthenium(ii) complexes [Ru(phen)2(cptcp)]2+ (Ru1; phen = 1,10-phenanthroline, cptcp = 2-(4-carbazol-9-yl-phenyl)-1H-1,3,7,8-tetraaza-cyclopenta-[l]-phenanthrene) and [Ru(phen)2(btcpc)]2+ (Ru2; btcpc = 9-butyl-6-(1H-1,3,7,8-tetraaza-cyclo-cyclopenta-[l]-phenanthren-2-yl)-9H-carbazole-3-carbaldehyde) have been synthesised and characterised. The DNA-binding behaviours of the two complexes have been investigated by using spectroscopic and viscosity measurements. Results suggest that the two complexes bind to DNA by intercalation. The photocleavage of plasmid pBR322 DNA indicates that Ru1 exhibits more effective DNA cleavage activity in comparison to that exhibited by Ru2 under the same conditions, and different cleavage mechanisms are determined. Topoisomerase inhibition and DNA strand passage assay confirm that Ru1 may act as an efficient dual inhibitor of topoisomerases I and II, whereas Ru2 may only act as a single inhibitor of topoisomerases II.
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Makone S, Mahurkar S. A Green Protocol for Efficient Synthesis of 1,8-Dioxo-Octahydroxanthenes Using Ionic Liquid. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/gsc.2013.34a005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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49
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Mulakayala N, Pavan Kumar G, Rambabu D, Aeluri M, Basaveswara Rao M, Pal M. A greener synthesis of 1,8-dioxo-octahydroxanthene derivatives under ultrasound. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.10.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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50
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Rad-Moghadam K, Azimi SC. Mg(BF4)2 doped in [BMIm][BF4]: A homogeneous ionic liquid-catalyst for efficient synthesis of 1,8-dioxo-octahydroxanthenes, decahydroacridines and 14-aryl-14H-dibenzo[a,j]xanthenes. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.molcata.2012.07.026] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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