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Ramli I, Cheriet T, Thuan DTB, Khoi DN, Thu DNK, Posadino AM, Fenu G, Sharifi-Rad J, Pintus G. Potential applications of antofine and its synthetic derivatives in cancer therapy: structural and molecular insights. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03180-x. [PMID: 38842561 DOI: 10.1007/s00210-024-03180-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 05/21/2024] [Indexed: 06/07/2024]
Abstract
Cancer is a major global health challenge, being the second leading cause of morbidity and mortality after cardiovascular disease. The growing economic burden and profound psychosocial impact on patients and their families make it urgent to find innovative and effective anticancer solutions. For this reason, interest in using natural compounds to develop new cancer treatments has grown. In this respect, antofine, an alkaloid class found in Apocynaceae, Lauraceae, and Moraceae family plants, exhibits promising biological properties, including anti-inflammatory, anticancer, antiviral, and antifungal activities. Several molecular mechanisms have been identified underlying antofine anti-cancerous effects, including the inhibition of nuclear factor κB (NF-κB) and AKT/mTOR signaling pathways, epigenetic inhibition of protein synthesis, ribosomal targeting, induction of apoptosis, inhibition of DNA synthesis, and cell cycle arrest. This study discusses the molecular structure, sources, photochemistry, and anticancer properties of antofine in relation to its structure-activity relationship and molecular targets. Then, examine in vitro and in vivo studies and analyze the mechanisms of action underpinning antofine efficacy against cancer cells. This review also discusses multidrug resistance in human cancer and the potential of antofine in this context. Safety and toxicity concerns are also addressed as well as current challenges in antofine research, including the need for clinical trials and bioavailability optimization. This review aims to provide comprehensive information for more effective natural compound-based cancer treatments.
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Affiliation(s)
- Iman Ramli
- Laboratory of Applied Biochemistry, Faculté Des Sciences de La Nature Et de La Vie, Université Frères Mentouri Constantine 1, 25000, Constantine, Algeria
| | - Thamere Cheriet
- Unité de Valorisation Des Ressources Naturelles, Molécules Bioactives Et Analyses Physicochimiques Et Biologiques, Université Des Frères Mentouri Constantine, 25000, Constantine, Algeria
- Département Science de La Nature Et de La Vie, Faculté Des Sciences Exactes Et Science de La Natute Et de La Vie, Université Mohammed Boudiaf-Oum El-Bouaghi, 04000, Oum El-Bouaghi, Algeria
| | | | - Dang Ngoc Khoi
- College of Health Sciences, VinUniversity, Gia Lam, 100000, Hanoi, Vietnam
| | | | - Anna Maria Posadino
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43B, 07100, Sassari, Italy
| | - Grazia Fenu
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43B, 07100, Sassari, Italy
| | - Javad Sharifi-Rad
- Department of Biomedical Sciences, College of Medicine, Korea University, Seoul, Republic of Korea.
| | - Gianfranco Pintus
- Department of Biomedical Sciences, University of Sassari, Viale San Pietro 43B, 07100, Sassari, Italy.
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, 27272, Sharjah, United Arab Emirates.
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2
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Yabalak E, Bahadırlı NP, Yetkin D, Yaldız FD, Han Türkseven Ç. Unlocking nature's potential: anticancer potential of Helichrysum sanguineum (L.) Kostel on breast cancer cells and its chemical composition. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024:1-13. [PMID: 38817209 DOI: 10.1080/09603123.2024.2360548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/22/2024] [Indexed: 06/01/2024]
Abstract
Helichrysum sanguineum (L.) Kostel (H. sanguineum), a member of the Asteraceae family, has been traditionally employed for various medicinal purposes owing to its rich phytochemical composition. This study investigates the anticancer properties of various extracts of H. sanguineum (ethanol, acetonitrile, hexane, and chloroform) against breast cancer cells, shedding light on its chemical constituents and their potential therapeutic effects. In vitro assays demonstrate the profound inhibitory effects of H. sanguineum extract on human fibroblast and breast cancer cells. Furthermore, we elucidate the underlying mechanisms of action, revealing its ability to induce apoptosis and cell cycle arrest in breast cancer cells. The cytotoxicity and apoptosis outcomes in breast cancer cells varied across different extracts, yet no adverse effects were observed on healthy cells at equivalent concentrations. Furthermore, all extracts initially promoted breast cancer cell proliferation, with the chloroform extract notably reducing cancer cell proliferation even at low concentrations. GC-MS analysis identifies the major chemical constituents of the extract, including flavonoids, terpenoids, and phenolic compounds, which likely contribute to its anticancer activity. Our findings highlight the potential of H. sanguineum extract as a natural agent for breast cancer treatment and the need for further exploration of its mechanisms and clinical applications.
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Affiliation(s)
- Erdal Yabalak
- Department of Nanotechnology and Advanced Materials, Mersin University, Mersin, Turkey
- Department of Chemistry and Chemical Processing Technologies, Technical Science Vocational School, Mersin University, Mersin, Turkey
| | - Nadire Pelin Bahadırlı
- Department of Field Crop, Faculty of Agriculture, Hatay Mustafa Kemal University, Antakya, Turkey
| | - Derya Yetkin
- Advanced Technology Education Research and Application Center, Mersin University, Mersin, Turkey
| | - Fadile Defne Yaldız
- Advanced Technology Education Research and Application Center, Mersin University, Mersin, Turkey
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Wang Z, Kasper A, Takahashi M, Amador AM, Bhattacharjee A, Kan J, Hernandez Y, Ternei M, Brady SF. Tapcin, an In Vivo Active Dual Topoisomerase I/II Inhibitor Discovered by Synthetic Bioinformatic Natural Product (Syn-BNP)-Coupled Metagenomics. Angew Chem Int Ed Engl 2024; 63:e202317187. [PMID: 38231130 PMCID: PMC11018531 DOI: 10.1002/anie.202317187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/10/2024] [Accepted: 01/16/2024] [Indexed: 01/18/2024]
Abstract
DNA topoisomerases are attractive targets for anticancer agents. Dual topoisomerase I/II inhibitors are particularly appealing due to their reduced rates of resistance. A number of therapeutically relevant topoisomerase inhibitors are bacterial natural products. Mining the untapped chemical diversity encoded by soil microbiomes presents an opportunity to identify additional natural topoisomerase inhibitors. Here we couple metagenome mining, bioinformatic structure prediction algorithms, and chemical synthesis to produce the dual topoisomerase inhibitor tapcin. Tapcin is a mixed p-aminobenzoic acid (PABA)-thiazole with a rare tri-thiazole substructure and picomolar antiproliferative activity. Tapcin reduced colorectal adenocarcinoma HT-29 cell proliferation and tumor volume in mouse hollow fiber and xenograft models, respectively. In both studies it showed similar activity to the clinically used topoisomerase I inhibitor irinotecan. The study suggests that the interrogation of soil microbiomes using synthetic bioinformatic natural product methods has the potential to be a rewarding strategy for identifying potent, biomedically relevant, antiproliferative agents.
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Affiliation(s)
- Zongqiang Wang
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Amanda Kasper
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Mai Takahashi
- Laboratory of Systems Cancer Biology, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Adrian Morales Amador
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Abir Bhattacharjee
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Jingbo Kan
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Yozen Hernandez
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Melinda Ternei
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
| | - Sean F. Brady
- Laboratory of Genetically Encoded Small Molecules, The Rockefeller University, 1230 York Avenue, New York, NY 10065
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Hudáková T, Šemeláková M, Očenáš P, Kožurková M, Krochtová K, Sovová S, Tóthová Z, Guľášová Z, Popelka P, Solár P. Chili pepper extracts, capsaicin, and dihydrocapsaicin as potential anticancer agents targeting topoisomerases. BMC Complement Med Ther 2024; 24:96. [PMID: 38383414 PMCID: PMC10880293 DOI: 10.1186/s12906-024-04394-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 02/07/2024] [Indexed: 02/23/2024] Open
Abstract
DNA topoisomerases regulate conformational changes in DNA topology during normal cell growth, such as replication, transcription, recombination, and repair, and may be targeted for anticancer drugs. A DNA topology assay was used to investigate DNA-damaging/protective activities of extracts from Habanero Red (HR), Habanero Maya Red (HMR), Trinidad Moruga Scorpion (TMS), Jalapeno (J), Serrano pepper (SP), Habanero Red Savina (HRS), Bhut Jolokia (BJ), and Jamaica Rosso (JR) peppers, demonstrating their inhibitory effect on the relaxation of pBR by Topo I. DNA topoisomerase II (Topo II) is proven therapeutic target of anticancer drugs. Complete inhibition of Topo II was observed for samples TMS, HR, and HMR. Extracts J and SP had the lowest capsaicin and dihydrocapsaicin content compared to other peppers. HR, HMR, TMS, J, S, HRS, BJ, JR extracts showed the anticancer effect, examined by MTS and xCell assay on the in vitro culture of human colon carcinoma cell line HCT116.
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Affiliation(s)
- Terézia Hudáková
- Department of Medical Biology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11, Košice, Slovakia
| | - Martina Šemeláková
- Department of Medical Biology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11, Košice, Slovakia
| | - Peter Očenáš
- Department of Chemistry, Biochemistry and Biophysics, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovakia
| | - Mária Kožurková
- Department of Biochemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 040 01, Košice, Slovakia
| | - Kristína Krochtová
- Department of Biochemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 040 01, Košice, Slovakia
| | - Simona Sovová
- Department of Biochemistry, Faculty of Science, Pavol Jozef Šafárik University in Košice, Moyzesova 11, 040 01, Košice, Slovakia
| | - Zuzana Tóthová
- Department of Medical Biology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11, Košice, Slovakia
| | - Zuzana Guľášová
- Center of Clinical and Preclinical Research MEDIPARK, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11, Košice, Slovakia
| | - Peter Popelka
- Department of Food Hygiene, Technology and Safety, University of Veterinary Medicine and Pharmacy in Košice, Komenského 73, 041 81, Košice, Slovakia
| | - Peter Solár
- Department of Medical Biology, Faculty of Medicine, Pavol Jozef Šafárik University in Košice, Trieda SNP 1, 040 11, Košice, Slovakia.
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Shehwar D, Barki S, Aliotta A, Veuthey L, Bertaggia Calderara D, Alberio L, Alam MR. Inhibition of mitochondrial calcium transporters alters adp-induced platelet responses. Mol Biol Rep 2024; 51:177. [PMID: 38252254 DOI: 10.1007/s11033-023-09116-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 12/06/2023] [Indexed: 01/23/2024]
Abstract
INTRODUCTION ADP-stimulated elevation of cytosolic Ca2+ is an important effector mechanism for platelet activation. The rapidly elevating cytosolic Ca2+ is also transported to mitochondrial matrix via Mitochondrial Ca2+ Uniporter (MCU) and extruded via Na+/Ca2+/Li+ Exchanger (NCLX). However, the exact contribution of MCU and NCLX in ADP-mediated platelet responses remains incompletely understood. METHODS AND RESULTS The present study aimed to elucidate the role of mitochondrial Ca2+ transport in ADP-stimulated platelet responses by inhibition of MCU and NCLX with mitoxantrone (MTX) and CGP37157 (CGP), respectively. As these inhibitory strategies are reported to cause distinct effects on matrix Ca2+ concentration, we hypothesized to observe opposite impact of MTX and CGP on ADP-induced platelet responses. Platelet aggregation profiling was performed by microplate-based spectrophotometery while p-selectin externalization and integrin αIIbβ3 activation were analyzed by fluorescent immunolabeling using flow cytometery. Our results confirmed the expression of both MCU and NCLX mRNAs with relatively low abundance of NCLX in human platelets. In line with our hypothesis, MTX caused a dose-dependent inhibition of ADP-induced platelet aggregation without displaying any cytotoxicity. Likewise, ADP-induced p-selectin externalization and integrin αIIbβ3 activation was also significantly attenuated in MTX-treated platelets. Concordantly, inhibition of NCLX with CGP yielded an accelerated ADP-stimulated platelet aggregation which was associated with an elevation of p-selectin surface expression and αIIbβ3 activation. CONCLUSION Together, these findings uncover a vital and hitherto poorly characterized role of mitochondrial Ca2+ transporters in ADP-induced platelet activation.
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Affiliation(s)
- Durre Shehwar
- Department of Biochemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Saima Barki
- Department of Biochemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Alessandro Aliotta
- Hemostasis and Platelet Research Laboratory, Division of Hematology and Central Hematology Laboratory, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), CH-1010, Lausanne, Switzerland
| | - Lucas Veuthey
- Hemostasis and Platelet Research Laboratory, Division of Hematology and Central Hematology Laboratory, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), CH-1010, Lausanne, Switzerland
| | - Debora Bertaggia Calderara
- Hemostasis and Platelet Research Laboratory, Division of Hematology and Central Hematology Laboratory, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), CH-1010, Lausanne, Switzerland
| | - Lorenzo Alberio
- Hemostasis and Platelet Research Laboratory, Division of Hematology and Central Hematology Laboratory, Lausanne University Hospital (CHUV) and University of Lausanne (UNIL), CH-1010, Lausanne, Switzerland
| | - Muhammad Rizwan Alam
- Department of Biochemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
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Swedan HK, Kassab AE, Gedawy EM, Elmeligie SE. Topoisomerase II inhibitors design: Early studies and new perspectives. Bioorg Chem 2023; 136:106548. [PMID: 37094479 DOI: 10.1016/j.bioorg.2023.106548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/05/2023] [Accepted: 04/13/2023] [Indexed: 04/26/2023]
Abstract
The DNA topoisomerase enzymes are widely distributed throughout all spheres of life and are necessary for cell function. Numerous antibacterial and cancer chemotherapeutic drugs target the various topoisomerase enzymes because of their roles in maintaining DNA topology during DNA replication and transcription. Agents derived from natural products, like anthracyclines, epipodophyllotoxins and quinolones, have been widely used to treat a variety of cancers. A very active field of fundamental and clinical research is the selective targeting of topoisomerase II enzymes for cancer treatment. This thematic review summarizes the recent advances in the anticancer activity of the most potent topoisomerase II inhibitors (anthracyclines, epipodophyllotoxins and fluoroquinolones) their modes of action, and structure-activity relationships (SARs) organized chronologically in the last ten years from 2013 to 2023. The review also highlights the mechanism of action and SARs of promising new topoisomerase II inhibitors.
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Affiliation(s)
- Hadeer K Swedan
- Central Administration of Research and Health Development, Ministry of Health, and Population (MoHP), Cairo P.O. Box 11516, Egypt
| | - Asmaa E Kassab
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo P.O. Box 11562, Egypt.
| | - Ehab M Gedawy
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo P.O. Box 11562, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Pharmaceutical Industries, Badr University in Cairo (BUC), Badr City, Cairo P.O. Box 11829, Egypt
| | - Salwa E Elmeligie
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Cairo University, Kasr El-Aini Street, Cairo P.O. Box 11562, Egypt
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Asghar BH, Hassan RK, Barakat LA, Alharbi A, El Behery M, Elshaarawy RF, Hassan YA. Cross-linked quaternized chitosan nanoparticles for effective delivery and controllable release of O. europaea phenolic extract targeting cancer therapy. J Drug Deliv Sci Technol 2023. [DOI: 10.1016/j.jddst.2023.104388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Leng X, Duxin JP. Targeting DNA-Protein Crosslinks via Post-Translational Modifications. Front Mol Biosci 2022; 9:944775. [PMID: 35860355 PMCID: PMC9289515 DOI: 10.3389/fmolb.2022.944775] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/03/2022] [Indexed: 11/13/2022] Open
Abstract
Covalent binding of proteins to DNA forms DNA-protein crosslinks (DPCs), which represent cytotoxic DNA lesions that interfere with essential processes such as DNA replication and transcription. Cells possess different enzymatic activities to counteract DPCs. These include enzymes that degrade the adducted proteins, resolve the crosslinks, or incise the DNA to remove the crosslinked proteins. An important question is how DPCs are sensed and targeted for removal via the most suited pathway. Recent advances have shown the inherent role of DNA replication in triggering DPC removal by proteolysis. However, DPCs are also efficiently sensed and removed in the absence of DNA replication. In either scenario, post-translational modifications (PTMs) on DPCs play essential and versatile roles in orchestrating the repair routes. In this review, we summarize the current knowledge of the mechanisms that trigger DPC removal via PTMs, focusing on ubiquitylation, small ubiquitin-related modifier (SUMO) conjugation (SUMOylation), and poly (ADP-ribosyl)ation (PARylation). We also briefly discuss the current knowledge gaps and emerging hypotheses in the field.
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Ibrahim M. El-Deen, El-Zend MA, Tantawy MA, Barakat LAA. Synthesis and Cytotoxicity Screening of Some Synthesized Coumarin and Aza-Coumarin Derivatives as Anticancer Agents. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2022. [DOI: 10.1134/s106816202202011x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Amewu RK, Sakyi PO, Osei-Safo D, Addae-Mensah I. Synthetic and Naturally Occurring Heterocyclic Anticancer Compounds with Multiple Biological Targets. Molecules 2021; 26:7134. [PMID: 34885716 PMCID: PMC8658833 DOI: 10.3390/molecules26237134] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 01/09/2023] Open
Abstract
Cancer is a complex group of diseases initiated by abnormal cell division with the potential of spreading to other parts of the body. The advancement in the discoveries of omics and bio- and cheminformatics has led to the identification of drugs inhibiting putative targets including vascular endothelial growth factor (VEGF) family receptors, fibroblast growth factors (FGF), platelet derived growth factors (PDGF), epidermal growth factor (EGF), thymidine phosphorylase (TP), and neuropeptide Y4 (NY4), amongst others. Drug resistance, systemic toxicity, and drug ineffectiveness for various cancer chemo-treatments are widespread. Due to this, efficient therapeutic agents targeting two or more of the putative targets in different cancer cells are proposed as cutting edge treatments. Heterocyclic compounds, both synthetic and natural products, have, however, contributed immensely to chemotherapeutics for treatments of various diseases, but little is known about such compounds and their multimodal anticancer properties. A compendium of heterocyclic synthetic and natural product multitarget anticancer compounds, their IC50, and biological targets of inhibition are therefore presented in this review.
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Affiliation(s)
- Richard Kwamla Amewu
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, Legon, Accra P.O. Box LG 56, Ghana; (R.K.A.); (P.O.S.); (D.O.-S.)
| | - Patrick Opare Sakyi
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, Legon, Accra P.O. Box LG 56, Ghana; (R.K.A.); (P.O.S.); (D.O.-S.)
- Department of Chemical Sciences, School of Sciences, University of Energy and Natural Resources, Sunyani P.O. Box 214, Ghana
| | - Dorcas Osei-Safo
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, Legon, Accra P.O. Box LG 56, Ghana; (R.K.A.); (P.O.S.); (D.O.-S.)
| | - Ivan Addae-Mensah
- Department of Chemistry, School of Physical and Mathematical Sciences, College of Basic and Applied Sciences, University of Ghana, Legon, Accra P.O. Box LG 56, Ghana; (R.K.A.); (P.O.S.); (D.O.-S.)
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Santos D, Gomes HF, Ribeiro L, Farias AB, Romeiro NC, da Fonseca RN, Nepomuceno-Silva JL, Moraes J. Inhibition of Aedes aegypti DNA topoisomerase II by etoposide: Impact on survival and morphology of larvae and pupae. Comp Biochem Physiol C Toxicol Pharmacol 2021; 247:109066. [PMID: 33930525 DOI: 10.1016/j.cbpc.2021.109066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 04/18/2021] [Accepted: 04/21/2021] [Indexed: 10/01/2022]
Abstract
DNA topoisomerase II enzymes maintain DNA stability during vital processes, such as genome replication, transcription and chromosomal segregation during mitosis and meiosis. In the present work, we analyzed functional aspects of the DNA topoisomerase II (AeTopII) enzyme of the mosquito Aedes aegypti. Here, we show that AeTopII mRNA is expressed at all stages of mosquito development. By in situ hybridization, we found that the AeTopII mRNA is concentrated along the ovarian follicular cells as well as in the region of the follicles. The observed expression profiles likely reflect increased topoisomerase II cellular requirements due to the intense ovarian growth and egg production following blood feeding in Ae. aegypti females. The drug etoposide, a classic inhibitor of topoisomerase II, was used for in vivo testing with 2nd stage larvae, in order to investigate the functional importance of this enzyme in Ae. aegypti survival and development. Inhibition of topoisomerase II activity with etoposide concentrations ranging from 10 to 200 μM did not leads to the immediate death of larvae. However, after 10 days of observation, etoposide treatments resulted in 30-40% decrease in survival, in a dose dependent manner, with persisting larvae and pupae presenting incomplete development, as well as morphological abnormalities. Also, approximately 50% of the treated larvae did not reach the pupal stage. Thus, we conclude that AeTopII is a vital enzyme in the development of Ae. aegypti and its sensitivity to inhibitors should be explored for potential chemical agents to be used in vector control.
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Affiliation(s)
- Daniele Santos
- Laboratório Integrado de Bioquímica Hatisaburo Masuda, NUPEM, Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Avenida São José Barreto, N° 764, Bairro, São José do Barreto, Macaé, RJ CEP: 27.965-045, Brazil
| | - Helga F Gomes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda, NUPEM, Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Avenida São José Barreto, N° 764, Bairro, São José do Barreto, Macaé, RJ CEP: 27.965-045, Brazil
| | - Lupis Ribeiro
- Laboratório Integrado Ciências Morfofuncionais, NUPEM, Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Avenida São José Barreto, N° 764, Bairro, São José do Barreto, Macaé, RJ CEP: 27.965-045, Brazil
| | - André B Farias
- Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro CEP: 21941-909, Brazil; Laboratório Integrado de Computação Científica, Universidade Federal do Rio de Janeiro, Campus Macaé Professor Aloísio Teixeira, Avenida Aluízio da Silva Gomes, 50, CEP 27930-560, Granja dos Cavaleiros, Macaé, RJ, Brazil
| | - Nelilma C Romeiro
- Laboratório Integrado de Computação Científica, Universidade Federal do Rio de Janeiro, Campus Macaé Professor Aloísio Teixeira, Avenida Aluízio da Silva Gomes, 50, CEP 27930-560, Granja dos Cavaleiros, Macaé, RJ, Brazil
| | - Rodrigo Nunes da Fonseca
- Laboratório Integrado Ciências Morfofuncionais, NUPEM, Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Avenida São José Barreto, N° 764, Bairro, São José do Barreto, Macaé, RJ CEP: 27.965-045, Brazil
| | - José L Nepomuceno-Silva
- Laboratório Integrado de Bioquímica Hatisaburo Masuda, NUPEM, Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Avenida São José Barreto, N° 764, Bairro, São José do Barreto, Macaé, RJ CEP: 27.965-045, Brazil
| | - Jorge Moraes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda, NUPEM, Instituto de Biodiversidade e Sustentabilidade, Universidade Federal do Rio de Janeiro, Avenida São José Barreto, N° 764, Bairro, São José do Barreto, Macaé, RJ CEP: 27.965-045, Brazil.
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Design and synthesis of novel conformationally constrained 7,12-dihydrodibenzo[b,h][1,6] naphthyridine and 7H-Chromeno[3,2-c] quinoline derivatives as topoisomerase I inhibitors: In vitro screening, molecular docking and ADME predictions. Bioorg Chem 2021; 115:105174. [PMID: 34314913 DOI: 10.1016/j.bioorg.2021.105174] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/08/2021] [Accepted: 07/11/2021] [Indexed: 12/25/2022]
Abstract
Novel non-camptothecin (non-CPT) class of conformationally constrained, hitherto unknown 7,12-dihydrodibenzo[b,h][1,6] naphthyridine and 7H-Chromeno[3,2-c] quinoline derivatives have been designed, synthesized and evaluated for anti-cancer activity. In vitro anti-proliferation evaluation against human cancer cell lines (A549 and MCF-7) exhibited significant cytotoxicity. Among the derivatives (8-24), 8 (IC50 0.44 μM and IC50 0.62 μM) and 12 (IC50 0.69 μM and IC50 0.54 μM) were identified as the most promising candidate against A-549 and MCF-7 cancer cell lines respectively. Topo I inhibitory activity of 8 and 12 suggested that, they may be developed as potential anti-cancer molecules in future and rationalized by docking analysis with effective binding modes. Further, in silico ADME prediction studies of all derivatives were found promising, signifying the drug like properties. In precise, the present investigation displays a new strategy to synthesize and emphasis on anticancer activities of conformationally constrained dibenzo[b,h][1,6] naphthyridine derivatives and Chromeno[3,2-c] quinoline derivatives in the context of cancer drug development and refinement.
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13
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Gurung AB, Ali MA, Lee J, Farah MA, Al-Anazi KM. Molecular docking and dynamics simulation study of bioactive compounds from Ficus carica L. with important anticancer drug targets. PLoS One 2021; 16:e0254035. [PMID: 34260631 PMCID: PMC8279321 DOI: 10.1371/journal.pone.0254035] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 06/17/2021] [Indexed: 01/08/2023] Open
Abstract
Ficus carica L., commonly known as fig, has been used in traditional medicine for metabolic disorders, cardiovascular diseases, respiratory diseases and cancer. Various bioactive compounds have been previously isolated from the leaves, fruit, and bark, which have different pharmacological properties, but the anticancer mechanisms of this plant are not known. In the current study we focused on understanding the probable mechanisms underlying the anticancer activity of F. carica plant extracts by molecular docking and dynamic simulation approaches. We evaluated the drug-likeness of the active constituents of the plant and explored its binding affinity with selected anticancer drug target receptors such as cyclin-dependent kinase 2 (CDK-2), cyclin-dependent kinase 6 (CDK-6), topoisomerase-I (Topo I), topoisomerase-II (Topo II), B-cell lymphoma 2 (Bcl-2), and vascular endothelial growth factor receptor 2 (VEGFR-2). In silico toxicity studies revealed that thirteen molecules out of sixty-eight major active compounds in the plant extract have acceptable drug-like properties. Compound 37 (β-bourbonene) has a good binding affinity with the majority of drug targets, as revealed by molecular docking studies. The complexes of the lead molecules with the drug receptors were stable in terms of molecular dynamics simulation derived parameters such as root mean square deviation and radius of gyration. The top ten residues contributing significantly to the binding free energies were deciphered through analysis of molecular mechanics Poisson–Boltzmann surface area (MM-PBSA) and molecular mechanics generalized Born surface area (MM-GBSA). Thus, the results of our studies unravel the potential of F. carica bioactive compounds as anticancer candidate molecules against selected macromolecular receptors.
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Affiliation(s)
- Arun Bahadur Gurung
- Department of Basic Sciences and Social Sciences, North-Eastern Hill University, Shillong, Meghalaya, India
- * E-mail:
| | - Mohammad Ajmal Ali
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Joongku Lee
- Department of Environment and Forest Resources, Chungnam National University, Yuseong-gu, Daejeon, Republic of Korea
| | - Mohammad Abul Farah
- Genetics Laboratory, Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Khalid Mashay Al-Anazi
- Genetics Laboratory, Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
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Radaeva M, Dong X, Cherkasov A. The Use of Methods of Computer-Aided Drug Discovery in the Development of Topoisomerase II Inhibitors: Applications and Future Directions. J Chem Inf Model 2020; 60:3703-3721. [DOI: 10.1021/acs.jcim.0c00325] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Mariia Radaeva
- Vancouver Prostate Centre, University of British Columbia, 2660 Oak Street, Vancouver, British Columbia V6H 3Z6, Canada
| | - Xuesen Dong
- Vancouver Prostate Centre, University of British Columbia, 2660 Oak Street, Vancouver, British Columbia V6H 3Z6, Canada
| | - Artem Cherkasov
- Vancouver Prostate Centre, University of British Columbia, 2660 Oak Street, Vancouver, British Columbia V6H 3Z6, Canada
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Pathak N, Rathi E, Kumar N, Kini SG, Rao CM. A Review on Anticancer Potentials of Benzothiazole Derivatives. Mini Rev Med Chem 2020; 20:12-23. [PMID: 31288719 DOI: 10.2174/1389557519666190617153213] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/15/2019] [Accepted: 05/19/2019] [Indexed: 11/22/2022]
Abstract
Benzothiazole is an organic compound bearing a heterocyclic nucleus (thiazole) which imparts a broad spectrum of biological activities to it. The significant and potent activity of benzothiazole moiety influenced distinctively by nature and position of substitutions. This review summarizes the effect of various substituents in recent trends and approaches to design and develop novel benzothiazole derivatives for anticancer potential in different cell lines by interpreting the Structure- Activity Relationship (SAR) and mechanism of action of a wide range of derivatives. The list of derivatives is categorized into different groups and reviewed for their anticancer activity. The structure-activity relationship for the various derivatives revealed an excellent understanding of benzothiazole moiety in the field of cancer therapy against different cancer cell line. Data obtained from the various articles showed the potential effect of benzothiazole moiety and its derivatives to produce the peculiar and significant lead compound. The important anticancer mechanisms found are tyrosine kinase inhibition, topoisomerase inhibition and induction of apoptosis by Reactive Oxygen Species (ROS) activation. Therefore, the design and development of novel benzothiazole have broad scope in cancer chemotherapy.
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Affiliation(s)
- Nandini Pathak
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Ekta Rathi
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Nitesh Kumar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - Suvarna G Kini
- Department of Pharmaceutical Chemistry, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
| | - C Mallikarjuna Rao
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka-576104, India
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16
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Rizzk YW, El-Deen IM, Mohammed FZ, Abdelhamid MS, Khedr AI. In Vitro Antitumor Evaluation of Some Hybrid Molecules Containing Coumarin and Quinolinone Moieties. Anticancer Agents Med Chem 2020; 19:2010-2018. [DOI: 10.2174/1871520619666190930143856] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/02/2019] [Accepted: 07/31/2019] [Indexed: 02/08/2023]
Abstract
Background:
Hybrid molecules furnished by merging two or more pharmacophores is an emerging
concept in the field of medicinal chemistry and drug discovery. Currently, coumarin hybrids have attracted the
keen attention of researchers to discover their therapeutic capability against cancer.
Objective:
The present study aimed to evaluate the in vitro antitumor activity of a new series of hybrid molecules
containing coumarin and quinolinone moieties 4 and 5 against four cancer cell lines.
Materials and Methods:
A new series of hybrid molecules containing coumarin and quinolinone moieties, 4a-c
and 5a-c, were synthesized and screened for their cytotoxicity against prostate PC-3, breast MCF-7, colon HCT-
116 and liver HepG2 cancer cell lines as well as normal breast Hs-371 T.
Results:
All the synthesized compounds were assessed for their in vitro antiproliferative activity against four
cancer cell lines and several compounds were found to be active. Further in vitro cell cycle study of compounds
4a and 5a revealed MCF-7 cells arrest at G2 /M phase of the cell cycle profile and induction apoptosis at pre-G1
phase. The apoptosis-inducing activity was evidenced by up-regulation of Bax protein together with the downregulation
of the expression of Bcl-2 protein. The mechanism of cytotoxic activity of compounds 4a and 5a
correlated to its topoisomerase II inhibitory activity.
Conclusion:
Hybrid molecules containing coumarin and quinolinone moieties represents a scaffold for further
optimization to obtain promising anticancer agents.
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Affiliation(s)
- Youstina W. Rizzk
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - Ibrahim M. El-Deen
- Chemistry Department, Faculty of Science, Port Said University, Port Said, Egypt
| | - Faten Z. Mohammed
- Chemistry Department (Biochemistry Branch), Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Moustafa S. Abdelhamid
- Chemistry Department (Biochemistry Branch), Faculty of Science, Zagazig University, Zagazig, Egypt
| | - Amgad I.M. Khedr
- Pharmacognosy Department, Faculty of Pharmacy, Port Said University, Port Said, Egypt
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17
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Varghese SS, Ghosh SK. Stress-responsive Entamoeba topoisomerase II: a potential antiamoebic target. FEBS Lett 2019; 594:1005-1020. [PMID: 31724164 DOI: 10.1002/1873-3468.13677] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 11/05/2019] [Accepted: 11/05/2019] [Indexed: 12/21/2022]
Abstract
Topoisomerases, the ubiquitous enzymes involved in all DNA processes across the biological world, are targets for various anticancer and antimicrobial agents. In Entamoeba histolytica, the causative agent of amebiasis, we found one of seven unexplored putative topoisomerases to be highly upregulated during heat shock and oxidative stress, and also during the late hours of encystation. Further analysis revealed the upregulated enzyme to be a eukaryotic type IIA topoisomerase (TopoII) with demonstrable activity in vitro. This enzyme is localized to newly forming nuclei during encystation. Gene silencing of the TopoII reduces viability and encystation efficiency. Notable susceptibility of Entamoeba TopoII to prokaryotic topoisomerase inhibitors opens up the possibility for exploring this enzyme as a new antiamoebic target.
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Affiliation(s)
- Sneha Susan Varghese
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
| | - Sudip Kumar Ghosh
- Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur, India
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Nandi A, Ghosh C, Basu S. Polymer conjugated graphene-oxide nanoparticles impair nuclear DNA and Topoisomerase I in cancer. NANOSCALE ADVANCES 2019; 1:4965-4971. [PMID: 36133106 PMCID: PMC9417292 DOI: 10.1039/c9na00617f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 10/24/2019] [Indexed: 05/11/2023]
Abstract
Cancer chemotherapy had been dominated by the use of small molecule DNA damaging drugs. Eventually, the emergence of DNA damage repair machinery in cancer cells has led to combination therapy with the DNA topology controlling enzyme, topoisomerase I inhibitor along with DNA impairing agents. However, integrating multiple drugs having diverse water solubility and hence bio-distribution effectively for cancer treatment remains a significant challenge, which can be addressed by using suitable nano-scale materials. Herein, we have chemically conjugated graphene oxide (GO) with biocompatible and hydrophilic polymers [polyethylene glycol (PEG) and ethylene-diamine modified poly-isobutylene-maleic anhydride (PMA-ED)], which can encompass highly hydrophobic topoisomerase I inhibitor, SN38. Interestingly, these sheet structured GO-polymer-SN38 composites self-assembled into spherical nanoparticles in water after complexing with a hydrophilic DNA damaging drug, cisplatin. These nanoparticles showed much improved colloidal stability in water compared to their drug-loaded non-polymeric counterpart. These SN38 and cisplatin laden GO-polymer nanoparticles were taken up by HeLa cancer cells through clathrin-dependent endocytosis to home into lysosomes within 6 h, as confirmed by confocal microscopy. A combination of gel electrophoresis, flow cytometry, and fluorescence microscopy showed that these nanoparticles damaged nuclear DNA and induced topoisomerase I inhibition leading to apoptosis and finally improved HeLa cell death. These self-assembled GO-polymer nanoparticles can be used for strategic impairment of multiple cellular targets involving hydrophobic and hydrophilic drugs for effective combination therapy.
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Affiliation(s)
- Aditi Nandi
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune Dr Homi Bhabha Road, Pashan Pune 411008 Maharashtra India
| | - Chandramouli Ghosh
- Department of Chemistry, Indian Institute of Science Education and Research (IISER)-Pune Dr Homi Bhabha Road, Pashan Pune 411008 Maharashtra India
| | - Sudipta Basu
- Discipline of Chemistry, Indian Institute of Technology (IIT)-Gandhinagar Palaj Gandhinagar Gujarat 382355 India
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19
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Structural modification of ellipticine derivatives with alkyl groups of varying length is influential on their effects on human DNA topoisomerase II: a combined experimental and computational study. Med Chem Res 2019. [DOI: 10.1007/s00044-019-02472-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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20
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Thiohydantoin derivatives incorporating a pyrazole core: Design, synthesis and biological evaluation as dual inhibitors of topoisomerase-I and cycloxygenase-2 with anti-cancer and anti-inflammatory activities. Bioorg Chem 2019; 91:103132. [PMID: 31374529 DOI: 10.1016/j.bioorg.2019.103132] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/18/2019] [Accepted: 07/18/2019] [Indexed: 01/09/2023]
Abstract
A new series of hybrid structures 14a-l containing thiohydantoin as anti-cancer moiety and pyrazole core possessing SO2Me pharmacophore as selective COX-2 moiety was designed and synthesized to be evaluated for both anti-inflammatory and anti-cancer activities. The synthesized compounds were evaluated for their COX inhibition, in vivo anti-inflammatory activity, ulcerogenic liability, in vitro cytotoxic activity and human topoisomerase-1 inhibition. All compounds were more selective for COX-2 isozyme and showed good in vivo anti-inflammatory activity. Also, all derivatives were significantly less ulcerogenic (ulcer indexes = 2.64-3.87) than ibuprofen (ulcer index = 20.25) and were of acceptable ulcerogenicity when compared with the non-ulcerogenic reference drug celecoxib (ulcer index = 2.99). Regarding anti-cancer activity, most of the target derivatives showed activities against A-549, MCF-7 and HCT-116 cell lines (IC50 = 5.32-17.90, 3.67-19.04 and 3.19-14.87 µM respectively) in comparison with doxorubicin (IC50 = 0.20, 0.50 and 2.44 µM respectively). Compound 14a inhibited the human topoisomerase-1 with IC50 = 29.7 µg/ml while 14b and 14c showed more potent inhibitory activity with IC50 = 26.5 and 23.3 µg/ml. respectively in comparison with camptothecin (IC50 = 20.2 µg/ml). Additionally, COX-2 and human topoisomerase-1 docking studies were carried out to explain the interaction of the synthesized hybrid structures 14a-l with the target enzymes.
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21
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Janockova J, Korabecny J, Plsikova J, Babkova K, Konkolova E, Kucerova D, Vargova J, Koval J, Jendzelovsky R, Fedorocko P, Kasparkova J, Brabec V, Rosocha J, Soukup O, Hamulakova S, Kuca K, Kozurkova M. In vitro investigating of anticancer activity of new 7-MEOTA-tacrine heterodimers. J Enzyme Inhib Med Chem 2019; 34:877-897. [PMID: 30938202 PMCID: PMC6450562 DOI: 10.1080/14756366.2019.1593159] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
A combination of biochemical, biophysical and biological techniques was used to study calf thymus DNA interaction with newly synthesized 7-MEOTA-tacrine thiourea 12-17 and urea heterodimers 18-22, and to measure interference with type I and II topoisomerases. Their biological profile was also inspected in vitro on the HL-60 cell line using different flow cytometric techniques (cell cycle distribution, detection of mitochondrial membrane potential dissipation, and analysis of metabolic activity/viability). The compounds exhibited a profound inhibitory effect on topoisomerase activity (e.g. compound 22 inhibited type I topoisomerase at 1 µM concentration). The treatment of HL-60 cells with the studied compounds showed inhibition of cell growth especially with hybrids containing thiourea (14-17) and urea moieties (21 and 22). Moreover, treatment of human dermal fibroblasts with the studied compounds did not indicate significant cytotoxicity. The observed results suggest beneficial selectivity of the heterodimers as potential drugs to target cancer cells.
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Affiliation(s)
- Jana Janockova
- a Department of Biochemistry, Institute of Chemistry, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic.,b Biomedical Research Center , University Hospital Hradec Kralove , Hradec Kralove , Czech Republic
| | - Jan Korabecny
- b Biomedical Research Center , University Hospital Hradec Kralove , Hradec Kralove , Czech Republic.,c Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences , University of Defence , Hradec Kralove , Czech Republic
| | - Jana Plsikova
- a Department of Biochemistry, Institute of Chemistry, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic.,d Associated Tissue Bank, Faculty of Medicine , P.J. Šafárik University , Kosice , Slovak Republic
| | - Katerina Babkova
- b Biomedical Research Center , University Hospital Hradec Kralove , Hradec Kralove , Czech Republic.,c Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences , University of Defence , Hradec Kralove , Czech Republic
| | - Eva Konkolova
- a Department of Biochemistry, Institute of Chemistry, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Dana Kucerova
- e Department of Cellular Biology, Institute of Biology and Ecology, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Jana Vargova
- e Department of Cellular Biology, Institute of Biology and Ecology, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Jan Koval
- e Department of Cellular Biology, Institute of Biology and Ecology, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Rastislav Jendzelovsky
- e Department of Cellular Biology, Institute of Biology and Ecology, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Peter Fedorocko
- e Department of Cellular Biology, Institute of Biology and Ecology, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Jana Kasparkova
- f Department of Biophysics, Faculty of Science , Palacke University , Olomouc , Czech Republic
| | - Viktor Brabec
- f Department of Biophysics, Faculty of Science , Palacke University , Olomouc , Czech Republic
| | - Jan Rosocha
- d Associated Tissue Bank, Faculty of Medicine , P.J. Šafárik University , Kosice , Slovak Republic
| | - Ondrej Soukup
- b Biomedical Research Center , University Hospital Hradec Kralove , Hradec Kralove , Czech Republic.,c Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences , University of Defence , Hradec Kralove , Czech Republic
| | - Slavka Hamulakova
- g Department of Organic Chemistry, Institute of Chemistry, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic
| | - Kamil Kuca
- b Biomedical Research Center , University Hospital Hradec Kralove , Hradec Kralove , Czech Republic
| | - Maria Kozurkova
- a Department of Biochemistry, Institute of Chemistry, Faculty of Science , P. J. Šafárik University , Kosice , Slovak Republic.,b Biomedical Research Center , University Hospital Hradec Kralove , Hradec Kralove , Czech Republic
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22
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Gawandi SJ, Desai VG, Shingade SG. Design, synthesis, and biological evaluation of 1,3,5-trisubstituted pyrazoles as tyrosine kinase inhibitors. Med Chem Res 2019. [DOI: 10.1007/s00044-018-2282-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Yousuf I, Arjmand F, Tabassum S, Ahmad M. Design and synthesis of a DNA intercalative half-sandwich organoruthenium( ii)–chromone complex: cytotoxicity evaluation and topoisomerase Iα inhibition assay. NEW J CHEM 2019; 43:5475-5487. [DOI: 10.1039/c9nj00042a] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
A half-sandwich organoruthenium(ii)–chromone complex acts as a potential topoisomerase I inhibitor.
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Affiliation(s)
- Imtiyaz Yousuf
- Department of Chemistry, Aligarh Muslim University
- Aligarh 202002
- India
| | - Farukh Arjmand
- Department of Chemistry, Aligarh Muslim University
- Aligarh 202002
- India
| | - Sartaj Tabassum
- Department of Chemistry, Aligarh Muslim University
- Aligarh 202002
- India
| | - Musheer Ahmad
- Department of Applied Chemistry, Aligarh Muslim University
- Aligarh 202002
- India
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24
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Madankumar N, Pitchumani K. β-Cyclodextrin Monosulphonic Acid Promoted Multicomponent Synthesis of 1,8-Dioxodecahydroacridines in Water. ChemistrySelect 2018. [DOI: 10.1002/slct.201802244] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Natarajan Madankumar
- Department of Natural Products Chemistry School of Chemistry; Madurai Kamaraj University; Madurai - 625021 India
| | - Kasi Pitchumani
- Department of Natural Products Chemistry School of Chemistry; Madurai Kamaraj University; Madurai - 625021 India
- Centre for Green Chemistry Processes, School of Chemistry; Madurai Kamaraj University; Madurai- 625021 India
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25
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Taghizadehghalehjoughi A, Hacimuftuoglu A, Cetin M, Ugur AB, Galateanu B, Mezhuev Y, Okkay U, Taspinar N, Taspinar M, Uyanik A, Gundogdu B, Mohammadzadeh M, Nalci KA, Stivaktakis P, Tsatsakis A, Jung TW, Jeong JH, El-Aty AMA. Effect of metformin/irinotecan-loaded poly-lactic-co-glycolic acid nanoparticles on glioblastoma: in vitro and in vivo studies. Nanomedicine (Lond) 2018; 13:1595-1606. [DOI: 10.2217/nnm-2017-0386] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Aim: The present study was designed to evaluate the effects of irinotecan hydrochloride (IRI)- or metformin hydrochloride (MET)-loaded poly-lactic-co-glycolic acid (PLGA) nanoparticles (NPs) for the treatment of glioblastoma multiforme using in vitro neuron and U-87 MG glioblastoma cell cultures and in vivo animal model. Methods: The cytotoxic and neurotoxic effects of pure drugs, blank NPs and MET- and IRI-loaded PLGA NPs were investigated in vitro (using methylthiazolyldiphenyl-tetrazolium bromide assay) and in vivo (using Cavalieri's principle for estimation of cancer volume).Results: 1 and 2 mM doses of MET and MET-loaded PLGA NPs, respectively, significantly reduced the volume of extracted cancer. Conclusion: Consequently, MET- and IRI-loaded PLGA NPs may be a promising approach for the treatment of glioblastoma multiforme.
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Affiliation(s)
- Ali Taghizadehghalehjoughi
- Department of Pharmacology and Toxicology, Faculty of Veterinary Science, Atatürk University, 25240, Erzurum, Turkey
| | - Ahmet Hacimuftuoglu
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Meltem Cetin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Atatürk University, 25240, Erzurum, Turkey
| | - Afife Busra Ugur
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Atatürk University, 25240, Erzurum, Turkey
| | - Bianca Galateanu
- Department of Biochemistry and Molecular Biology, 91-95 Splaiul Independentei, 050095, District 5, Bucharest, Romania
| | - Yaroslav Mezhuev
- Center of Biomaterials, D Mendeleev University of Chemical Technology of Russia, Miusskaya Sq. 9, 125047 Moscow, Russia
| | - Ufuk Okkay
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Numan Taspinar
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Mehmet Taspinar
- Department of Medical Biology, School of Medicine, Yuzuncu Yil University, Van, Turkey
| | - Abdullah Uyanik
- Department of Nephrology, Faculty of Medicine, Ataturk University, 25240, Erzurum, Turkey
| | - Betul Gundogdu
- Department of Pathology, Faculty of Medicine, Ataturk University, 25240, Erzurum, Turkey
| | - Maryam Mohammadzadeh
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Kemal Alp Nalci
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
| | - Polychronis Stivaktakis
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003, Heraklion, Greece
- Toxplus SA, University of Crete Spin-Off, 71601, Heraklion, Greece
| | - Aristidis Tsatsakis
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003, Heraklion, Greece
- Toxplus SA, University of Crete Spin-Off, 71601, Heraklion, Greece
| | - Tae Woo Jung
- Research Administration Team, Seoul National University Bundang Hospital, Gyeonggi, Republic of Korea
| | - Ji Hoon Jeong
- Department of Pharmacology, College of Medicine, Chung-Ang University, Seoul, Republic of Korea
| | - AM Abd El-Aty
- Department of Medical Pharmacology, Faculty of Medicine, Atatürk University, 25240, Erzurum, Turkey
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
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26
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Zolfigol MA, Karimi F, Yarie M, Torabi M. Catalytic application of sulfonic acid‐functionalized titana‐coated magnetic nanoparticles for the preparation of 1,8‐dioxodecahydroacridines and 2,4,6‐triarylpyridines via anomeric‐based oxidation. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.4063] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - Fatemeh Karimi
- Faculty of ChemistryBu‐Ali Sina University Hamedan 6517838683 Iran
| | - Meysam Yarie
- Faculty of ChemistryBu‐Ali Sina University Hamedan 6517838683 Iran
| | - Morteza Torabi
- Faculty of ChemistryBu‐Ali Sina University Hamedan 6517838683 Iran
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27
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Janockova J, Zilecka E, Kasparkova J, Brabec V, Soukup O, Kuca K, Kozurkova M. Assessment of DNA-binding affinity of cholinesterase reactivators and electrophoretic determination of their effect on topoisomerase I and II activity. MOLECULAR BIOSYSTEMS 2017; 12:2910-20. [PMID: 27412811 DOI: 10.1039/c6mb00332j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, we describe the biochemical properties and biological activity of a series of cholinesterase reactivators (symmetrical bisquaternary xylene-linked compounds, K106-K114) with ctDNA. The interaction of the studied derivatives with ctDNA was investigated using UV-Vis, fluorescence, CD and LD spectrometry, and electrophoretic and viscometric methods. The binding constants K were estimated to be in the range 1.05 × 10(5)-5.14 × 10(6) M(-1) and the percentage of hypochromism was found to be 10.64-19.28% (from UV-Vis titration). The used methods indicate that the studied samples are groove binders. Electrophoretic methods proved that the studied compounds clearly influence calf thymus Topo I (at 5 μM concentration, except for compounds K107, K111 and K114 which were effective at higher concentrations) and human Topo II (K110 partially inhibited Topo II effects even at 5 μM concentration) activity.
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Affiliation(s)
- J Janockova
- Institute of Chemistry, Department of Biochemistry, Faculty of Science, P. J. Safarik University, Moyzesova 11, 040 01 Kosice, Slovak Republic. and Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - E Zilecka
- Institute of Chemistry, Department of Biochemistry, Faculty of Science, P. J. Safarik University, Moyzesova 11, 040 01 Kosice, Slovak Republic.
| | - J Kasparkova
- Department of Biophysics, Faculty of Science, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - V Brabec
- Department of Biophysics, Faculty of Science, Palacky University, Slechtitelu 27, 783 71 Olomouc, Czech Republic
| | - O Soukup
- Department of Toxicology and Military Pharmacy, Faculty of Military Health Sciences, University of Defense, Trebesska 1575, 500 01 Hradec Kralove, Czech Republic
| | - K Kuca
- Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
| | - M Kozurkova
- Institute of Chemistry, Department of Biochemistry, Faculty of Science, P. J. Safarik University, Moyzesova 11, 040 01 Kosice, Slovak Republic. and Biomedical Research Center, University Hospital Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic
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28
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Gornowicz A, Pawłowska N, Czajkowska A, Czarnomysy R, Bielawska A, Bielawski K, Michalak O, Staszewska-Krajewska O, Kałuża Z. Biological evaluation of octahydropyrazin[2,1-a:5,4-a']diisoquinoline derivatives as potent anticancer agents. Tumour Biol 2017; 39:1010428317701641. [PMID: 28618951 DOI: 10.1177/1010428317701641] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In this study, we evaluated the cytotoxic activity and antiproliferative potency of novel octahydropyrazin[2,1-a:5,4-a']diisoquinoline derivatives (1-7) in MCF-7 and MDA-MB-231 breast cancer cell lines. Annexin V binding assay and disruption of the mitochondrial potential were performed to determine apoptosis. The activity of caspases 3, 8, 9, and 10 was measured after 24 h of incubation with tested compounds to explain detailed molecular mechanism of induction of apoptosis. The results from experiments were compared with effects obtained after incubation in the presence of camptothecin and etoposide. Our study demonstrated that the most active compounds in both analyzed breast cancer cell lines were compounds 3 and 4. We also observed that all compounds induced apoptosis. We demonstrated the higher activity of caspases 3, 8, 9, and 10, which confirmed that induction of apoptosis is associated with external and internal cell death pathway. Our study revealed that the novel compounds in group of diisoquinoline derivatives are promising candidates in anticancer treatment by activation of both extrinsic and intrinsic apoptotic pathways.
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Affiliation(s)
- Agnieszka Gornowicz
- 1 Department of Biotechnology, Medical University of Bialystok, Bialystok, Poland
| | - Natalia Pawłowska
- 2 Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Bialystok, Poland
| | - Anna Czajkowska
- 1 Department of Biotechnology, Medical University of Bialystok, Bialystok, Poland
| | - Robert Czarnomysy
- 2 Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Bialystok, Poland
| | - Anna Bielawska
- 1 Department of Biotechnology, Medical University of Bialystok, Bialystok, Poland
| | - Krzysztof Bielawski
- 2 Department of Synthesis and Technology of Drugs, Medical University of Bialystok, Bialystok, Poland
| | - Olga Michalak
- 3 Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
| | | | - Zbigniew Kałuża
- 3 Institute of Organic Chemistry, Polish Academy of Sciences, Warsaw, Poland
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29
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New silver complexes with bioactive glycine and nicotinamide molecules – Characterization, DNA binding, antimicrobial and anticancer evaluation. J Inorg Biochem 2017; 168:1-12. [DOI: 10.1016/j.jinorgbio.2016.12.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Revised: 12/05/2016] [Accepted: 12/09/2016] [Indexed: 11/22/2022]
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30
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Chang SM, Christian W, Wu MH, Chen TL, Lin YW, Suen CS, Pidugu HB, Detroja D, Shah A, Hwang MJ, Su TL, Lee TC. Novel indolizino[8,7- b ]indole hybrids as anti-small cell lung cancer agents: Regioselective modulation of topoisomerase II inhibitory and DNA crosslinking activities. Eur J Med Chem 2017; 127:235-249. [DOI: 10.1016/j.ejmech.2016.12.046] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/20/2016] [Accepted: 12/23/2016] [Indexed: 01/01/2023]
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31
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Sheng S, Chen Y, Zhang T, Ding M, Wu Y, Shen Z, Han G, Wang X. The assembly of small molecule conjugate amphiphiles into a precise nanomedicine for colon cancer. RSC Adv 2017. [DOI: 10.1039/c7ra07512j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A small molecule conjugate based on a traditional Chinese medicine cantharidin (CTR), which is an anhydride, and the anticancer drug camptothecin (CPT) was designed.
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Affiliation(s)
- Shihou Sheng
- Department of Gastrointestinal Colorectal and Anal Surgery
- China-Japan Union Hospital of Jilin University
- Chang Chun 130000
- China
| | - Yahong Chen
- Department of Gastrointestinal Colorectal and Anal Surgery
- China-Japan Union Hospital of Jilin University
- Chang Chun 130000
- China
| | - Tao Zhang
- Department of Gastrointestinal Colorectal and Anal Surgery
- China-Japan Union Hospital of Jilin University
- Chang Chun 130000
- China
| | - Meng Ding
- Department of Gastroenterology
- China-Japan Union Hospital of Jilin University
- Chang Chun 130000
- China
| | - Yuanyu Wu
- Department of Gastrointestinal Colorectal and Anal Surgery
- China-Japan Union Hospital of Jilin University
- Chang Chun 130000
- China
| | - Zhen Shen
- Department of Gastrointestinal Colorectal and Anal Surgery
- China-Japan Union Hospital of Jilin University
- Chang Chun 130000
- China
| | - Gang Han
- Department of Gastrointestinal Surgery
- The Second Hospital of Jilin University
- Chang Chun
- China
| | - Xu Wang
- Department of Gastrointestinal Colorectal Surgery
- The First Hospital of Jilin University
- China
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32
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Sabolová D, Vilková M, Imrich J, Potočňák I. New spiroacridine derivatives with DNA-binding and topoisomerase I inhibition activity. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.10.108] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Guo J, Xu S, Huang X, Li L, Zhang C, Pan Q, Ren Z, Zhou R, Ren Y, Zi J, Wu L, Stenvang J, Brünner N, Wen B, Liu S. Drug Resistance in Colorectal Cancer Cell Lines is Partially Associated with Aneuploidy Status in Light of Profiling Gene Expression. J Proteome Res 2016; 15:4047-4059. [PMID: 27457664 DOI: 10.1021/acs.jproteome.6b00387] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A priority in solving the problem of drug resistance is to understand the molecular mechanism of how a drug induces the resistance response within cells. Because many cancer cells exhibit chromosome aneuploidy, we explored whether changes of aneuploidy status result in drug resistance. Two typical colorectal cancer cells, HCT116 and LoVo, were cultured with the chemotherapeutic drugs irinotecan (SN38) or oxaliplatin (QxPt), and the non- and drug-resistant cell lines were selected. Whole exome sequencing (WES) was employed to evaluate the aneuploidy status of these cells, and RNAseq and LC-MS/MS were implemented to examine gene expression at both mRNA and protein level. The data of gene expression was well-matched with the genomic conclusion that HCT116 was a near diploid cell, whereas LoVo was an aneuploid cell with the increased abundance of mRNA and protein for these genes located at chromosomes 5, 7, 12, and 15. By comparing the genomic, transcriptomic, and proteomic data, the LoVo cells with SN38 tolerance showed an increased genome copy in chromosome 14, and the expression levels of the genes on this chromosome were also significantly increased. Thus, we first observed that SN38 could impact the aneuploidy status in cancer cells, which was partially associated with the acquired drug resistance.
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Affiliation(s)
- Jiao Guo
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Shaohang Xu
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Xuanlin Huang
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Lin Li
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Congmin Zhang
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qingfei Pan
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhen Ren
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Ruo Zhou
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Yan Ren
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Jin Zi
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Lin Wu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jan Stenvang
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, Section for Molecular Disease Biology, University of Copenhagen , Strandboulevarden 49, DK-2100 Copenhagen, Denmark
| | - Nils Brünner
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, Section for Molecular Disease Biology, University of Copenhagen , Strandboulevarden 49, DK-2100 Copenhagen, Denmark
| | - Bo Wen
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
| | - Siqi Liu
- CAS Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences , Beijing, 100101, China.,University of Chinese Academy of Sciences, Beijing, 100049, China.,BGI-Shenzhen, Shenzhen, Guangdong 518083, China.,China National GeneBank-Shenzhen, BGI-Shenzhen, Shenzhen, Guangdong 518083, China
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34
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Bisacchi GS, Hale MR. A "Double-Edged" Scaffold: Antitumor Power within the Antibacterial Quinolone. Curr Med Chem 2016; 23:520-77. [PMID: 26695512 PMCID: PMC4997924 DOI: 10.2174/0929867323666151223095839] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 11/27/2015] [Accepted: 12/22/2015] [Indexed: 12/22/2022]
Abstract
In the late 1980s, reports emerged describing experimental antibacterial quinolones having significant potency against eukaryotic Type II topoisomerases (topo II) and showing cytotoxic activity against tumor cell lines. As a result, several pharmaceutical companies initiated quinolone anticancer programs to explore the potential of this class in comparison to conventional human topo II inhibiting antitumor drugs such as doxorubicin and etoposide. In this review, we present a modern re-evaluation of the anticancer potential of the quinolone class in the context of today's predominantly pathway-based (rather than cytotoxicity-based) oncology drug R&D environment. The quinolone eukaryotic SAR is comprehensively discussed, contrasted with the corresponding prokaryotic data, and merged with recent structural biology information which is now beginning to help explain the basis for that SAR. Quinolone topo II inhibitors appear to be much less susceptible to efflux-mediated resistance, a current limitation of therapy with conventional agents. Recent advances in the biological understanding of human topo II isoforms suggest that significant progress might now be made in overcoming two other treatment-limiting disadvantages of conventional topo II inhibitors, namely cardiotoxicity and drug-induced secondary leukemias. We propose that quinolone class topo II inhibitors could have a useful future therapeutic role due to the continued need for effective topo II drugs in many cancer treatment settings, and due to the recent biological and structural advances which can now provide, for the first time, specific guidance for the design of a new class of inhibitors potentially superior to existing agents.
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Affiliation(s)
- Gregory S Bisacchi
- Syngene International Ltd., Biocon Park, Jigani Link Road, Bangalore 560099, India.
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35
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Nygård SB, Vainer B, Nielsen SL, Bosman F, Tejpar S, Roth A, Delorenzi M, Brünner N, Budinska E. DNA Topoisomerase I Gene Copy Number and mRNA Expression Assessed as Predictive Biomarkers for Adjuvant Irinotecan in Stage II/III Colon Cancer. Clin Cancer Res 2015; 22:1621-31. [PMID: 26542057 DOI: 10.1158/1078-0432.ccr-15-0561] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 10/12/2015] [Indexed: 11/16/2022]
Abstract
PURPOSE Prospective-retrospective assessment of the TOP1 gene copy number and TOP1 mRNA expression as predictive biomarkers for adjuvant irinotecan in stage II/III colon cancer. EXPERIMENTAL DESIGN Formalin-fixed, paraffin-embedded tissue microarrays were obtained from an adjuvant colon cancer trial (PETACC3) where patients were randomized to 5-fluorouracil/folinic acid with or without additional irinotecan. TOP1 copy number status was analyzed by fluorescence in situ hybridization (FISH) using a TOP1/CEN20 dual-probe combination. TOP1 mRNA data were available from previous analyses. RESULTS TOP1 FISH and follow-up data were obtained from 534 patients. TOP1 gain was identified in 27% using a single-probe enumeration strategy (≥4 TOP1 signals per cell) and in 31% when defined by a TOP1/CEN20 ratio ≥ 1.5. The effect of additional irinotecan was not dependent on TOP1 FISH status.TOP1 mRNA data were available from 580 patients with stage III disease. Benefit of irinotecan was restricted to patients characterized by TOP1 mRNA expression ≥ third quartile (RFS: HRadjusted, 0.59;P= 0.09; OS: HRadjusted, 0.44;P= 0.03). The treatment by TOP1 mRNA interaction was not statistically significant, but in exploratory multivariable fractional polynomial interaction analysis, increasing TOP1 mRNA values appeared to be associated with increasing benefit of irinotecan. CONCLUSIONS In contrast to the TOP1 copy number, a trend was demonstrated for a predictive property of TOP1 mRNA expression. On the basis of TOP1 mRNA, it might be possible to identify a subgroup of patients where an irinotecan doublet is a clinically relevant option in the adjuvant setting of colon cancer.
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Affiliation(s)
- Sune Boris Nygård
- University of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen, Denmark
| | - Ben Vainer
- Department of Pathology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark
| | - Signe Lykke Nielsen
- University of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen, Denmark
| | - Fred Bosman
- University of Lausanne, University Institute of Pathology, Lausanne, Switzerland
| | - Sabine Tejpar
- Digestive Oncology Unit, University Hospital Gasthuisberg, Leuven, Belgium
| | - Arnaud Roth
- Oncosurgery Unit, University Hospital of Geneva, Geneva, Switzerland
| | - Mauro Delorenzi
- SIB Swiss Institute of Bioinformatics, Bioinformatics Core Facility, Lausanne, Switzerland. University of Lausanne, Ludwig Center for Cancer Research, Lausanne, Switzerland. Oncology Department, University of Lausanne, Lausanne, Switzerland
| | - Nils Brünner
- University of Copenhagen, Faculty of Health and Medical Sciences, Copenhagen, Denmark.
| | - Eva Budinska
- Masaryk University, Institute of Biostatistics and Analyses, Brno, Czech Republic
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36
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Mahesh P, Guruswamy K, Diwakar BS, Devi BR, Murthy YLN, Kollu P, Pammi SVN. Magnetically Separable Recyclable Nano-ferrite Catalyst for the Synthesis of Acridinediones and Their Derivatives under Solvent-free Conditions. CHEM LETT 2015. [DOI: 10.1246/cl.150503] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Palla Mahesh
- Department of Organic Chemistry, Andhra University
- Jawaharlal Technological University
| | | | | | | | | | - Pratap Kollu
- Thin Film Magnetism Group, Cavendish Laboratory, Department of Physics, University of Cambridge
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37
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Karki R, Song C, Kadayat TM, Magar TBT, Bist G, Shrestha A, Na Y, Kwon Y, Lee ES. Topoisomerase I and II inhibitory activity, cytotoxicity, and structure–activity relationship study of dihydroxylated 2,6-diphenyl-4-aryl pyridines. Bioorg Med Chem 2015; 23:3638-54. [DOI: 10.1016/j.bmc.2015.04.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 04/02/2015] [Accepted: 04/03/2015] [Indexed: 12/21/2022]
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38
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Fatty acid esters of phloridzin induce apoptosis of human liver cancer cells through altered gene expression. PLoS One 2014; 9:e107149. [PMID: 25229655 PMCID: PMC4167698 DOI: 10.1371/journal.pone.0107149] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 08/12/2014] [Indexed: 12/17/2022] Open
Abstract
Phloridzin (phlorizin or phloretin 2′-O-glucoside) is known for blocking intestinal glucose absorption. We have investigated the anticarcinogenic effect of phloridzin and its novel derivatives using human cancer cell lines. We have synthesised novel acylated derivatives of phloridzin with six different long chain fatty acids by regioselective enzymatic acylation using Candida Antarctica lipase B. The antiproliferative effects of the new compounds were investigated in comparison with the parent compounds, phloridzin, aglycone phloretin, the six free fatty acids and chemotherapeutic drugs (sorafenib, doxorubicin and daunorubicin) using human hepatocellular carcinoma HepG2 cells, human breast adenocarcinoma MDA-MB-231 cells and acute monocytic leukemia THP-1 cells along with normal human and rat hepatocytes. The fatty acid esters of phloridzin inhibited significantly the growth of the two carcinoma and leukemia cells while similar treatment doses were not toxic to normal human or rat hepatocytes. The antiproliferative potency of fatty esters of phloridzin was comparable to the potency of the chemotherapeutic drugs. The fatty acid esters of phloridzin inhibited DNA topoisomerases IIα activity that might induce G0/G1 phase arrest, induced apoptosis via activation of caspase-3, and decreased ATP level and mitochondrial membrane potential in HepG2 cells. Based on the high selectivity on cancer cells, decosahexaenoic acid (DHA) ester of phloridzin was selected for gene expression analysis using RT2PCR human cancer drug target array. Antiproliferative effect of DHA ester of phloridzin could be related to the down regulation of anti-apoptotic gene (BCL2), growth factor receptors (EBFR family, IGF1R/IGF2, PDGFR) and its downstream signalling partners (PI3k/AKT/mTOR, Ras/Raf/MAPK), cell cycle machinery (CDKs, TERT, TOP2A, TOP2B) as well as epigenetics regulators (HDACs). These results suggest that fatty esters of phloridzin have potential chemotherapeutic effects mediated through the attenuated expression of several key proteins involved in cell cycle regulation, DNA topoisomerases IIα activity and epigenetic mechanisms followed by cell cycle arrest and apoptosis.
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39
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Yang A, Liu Z, Yan B, Zhou M, Xiong X. Preparation of camptothecin-loaded targeting nanoparticles and their antitumor effects on hepatocellular carcinoma cell line H22. Drug Deliv 2014; 23:1699-706. [PMID: 25148540 DOI: 10.3109/10717544.2014.950767] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Camptothecin (CPT) is an effective anticancer agent against various cancers but the clinical application is limited because of its poor water solubility, low bioavailability and severe toxic side effects. The aim of the present study was to evaluate the feasibility of using targeted NPs as a high-performance CPT delivery system that targets liver cancer cells through intravenous (i.v.) administration route. CPT was incorporated into biotin-F127-PLA or F127-PLA polymeric nanoparticles (NPs) by a dialysis method. The preparation of the targeting NPs was performed by conjugating biotin-F127-PLA NPs with anti-3A5 antibody. The antitumor effect of the CPT-loaded nanoparticles against H22 cells in vitro was determined using an MTT assay. Tissue distribution and tumor inhibition in vivo were also evaluated. Survivin mRNA expression was assessed by real-time polymerase chain reaction. Results showed that the targeted CPT NPs exhibited regular spherical shapes with a mean diameter of approximately 180 nm. In vitro release of the targeted CPT NPs exhibited an initial burst (40%) within 12 h, followed by a slow release. Cytotoxicity test against H22 cells indicated that the targeted CPT NPs exerted significant antitumor effects. Compared with free CPT and non-targeted CPT NPs, the targeted CPT NPs showed superior inhibition ratio against tumor in vivo, which may be associated with reduced survivin mRNA expression. The results suggested that the new targeted CPT NPs may be a promising injectable delivery system for cancer therapy.
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Affiliation(s)
- Anshu Yang
- a State Key Laboratory of Food Science and Technology , Nanchang University , Nanchang , China .,b Sino-German Joint Research Institute, Nanchang University , Nanchang , China
| | - Zhiyong Liu
- c Laboratory Animal Center of Science and Technology , Jiangxi University of Traditional Chinese Medicine , Nanchang , China .,d Experimental Animal Center , Jiangxi Institute of Occupational Disease Prevention , Nanchang , China , and
| | - Bin Yan
- d Experimental Animal Center , Jiangxi Institute of Occupational Disease Prevention , Nanchang , China , and
| | - Ming Zhou
- d Experimental Animal Center , Jiangxi Institute of Occupational Disease Prevention , Nanchang , China , and
| | - Xiangyuan Xiong
- e School of Life Science , Jiangxi Science & Technology Normal University , Nanchang , China
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40
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Aki-Yalcin E, Ertan-Bolelli T, Taskin-Tok T, Ozturk O, Ataei S, Ozen C, Yildiz I, Yalcin I. Evaluation of inhibitory effects of benzothiazole and 3-amino-benzothiazolium derivatives on DNA topoisomerase II by molecular modeling studies. SAR AND QSAR IN ENVIRONMENTAL RESEARCH 2014; 25:637-649. [PMID: 25027467 DOI: 10.1080/1062936x.2014.923039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
There has been considerable interest in DNA topoisomerases over the last decade, as they have been shown to be one of the major cellular targets in anticancer drug development. Previously we synthesized some benzothiazole derivatives and corresponding benzothiazolium forms, and tested their DNA inhibitory activity to develop novel antitumor agents. Among the 12 prepared compounds, compound BM3 (3-aminobenzothiazole-3-ium 4-methylbenzene sulfonate) exhibited extreme topoisomerase II inhibitory activity compared with the reference drug etoposide. We also tried to determine the DNA and enzyme binding abilities of BM3 and found that BM3 acted on topoisomerase II first at low doses, while it had also showed DNA minor groove binding properties at higher doses. In this study the interactions between DNA topoisomerase II and the compounds were examined in detail by molecular modelling studies such as molecular docking and pharmacophore analysis performed using Discovery Studio 3.5. As a result, it was found that benzothiazolium compounds exhibited a totally different mechanism than benzothiazoles by binding to the different amino acids at the active site of the protein molecule. 3-Aminobenzothiazoliums are worthy of carrying onto anticancer studies; BM3 especially would be a good anticancer candidate for preclinical studies.
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Affiliation(s)
- E Aki-Yalcin
- a Pharmaceutical Chemistry Department, Faculty of Pharmacy , Ankara University , Ankara , Turkey
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41
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Ahmed W, Menon S, Godbole AA, Karthik PVDNB, Nagaraja V. Conditional silencing of topoisomerase I gene of Mycobacterium tuberculosis validates its essentiality for cell survival. FEMS Microbiol Lett 2014; 353:116-23. [PMID: 24593153 DOI: 10.1111/1574-6968.12412] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 02/25/2014] [Accepted: 02/27/2014] [Indexed: 12/19/2022] Open
Abstract
Topoisomerases are an important class of enzymes for regulating the DNA transaction processes. Mycobacterium tuberculosis (Mtb) is one of the most formidable pathogens also posing serious challenges for therapeutic interventions. The organism contains only one type IA topoisomerase (Rv3646c), offering an opportunity to test its potential as a candidate drug target. To validate the essentiality of M. tuberculosis topoisomerase I (TopoI(Mt) ) for bacterial growth and survival, we have generated a conditionally regulated strain of topoI in Mtb. The conditional knockdown mutant exhibited delayed growth on agar plate. In liquid culture, the growth was drastically impaired when TopoI expression was suppressed. Additionally, novobiocin and isoniazid showed enhanced inhibitory potential against the conditional mutant. Analysis of the nucleoid revealed its altered architecture upon TopoI depletion. These studies establish the essentiality of TopoI for the M. tuberculosis growth and open up new avenues for targeting the enzyme.
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Affiliation(s)
- Wareed Ahmed
- Department of Microbiology and Cell Biology, Indian Institute of Science, Bangalore, India
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Kushwaha SKS, Rai AK, Singh S. Formulation and evaluation of pH sensitive hydrogel of camptothecin with enhanced solubility by using β-cyclodextrin. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2014. [DOI: 10.1007/s40005-014-0124-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Senarisoy M, Canturk P, Zencir S, Baran Y, Topcu Z. Gossypol interferes with both type I and type II topoisomerase activities without generating strand breaks. Cell Biochem Biophys 2013; 66:199-204. [PMID: 23161103 DOI: 10.1007/s12013-012-9468-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A considerable number of agents with chemotherapeutic potentials reported over the past years were shown to interfere with the reactions of DNA topoisomerases, the essential enzymes that regulate conformational changes in DNA topology. Gossypol, a naturally occurring bioactive phytochemical is a chemopreventive agent against various types of cancer cell growth with a reported activity on mammalian topoisomerase II. The compounds targeting topoisomerases vary in their mode of action; class I compounds act by stabilizing covalent topoisomerase-DNA complexes resulting in DNA strand breaks while class II compounds interfere with the catalytic function of topoisomerases without generating strand breaks. In this study, we report Gossypol as the interfering agent with type I topoisomerases as well. We also carried out an extensive set of assays to analyze the type of interference manifested by Gossypol on DNA topoisomerases. Our results strongly suggest that Gossypol is a potential class II inhibitor as it blocked DNA topoisomerase reactions with no consequently formed strand breaks.
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Affiliation(s)
- Muge Senarisoy
- Department of Biotechnology, Graduate School of Natural and Applied Sciences, Ege University, Izmir, Turkey
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Janockova J, Gulasova Z, Musilek K, Kuca K, Kozurkova M. Novel cholinesterase modulators and their ability to interact with DNA. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 115:364-369. [PMID: 23851179 DOI: 10.1016/j.saa.2013.06.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 05/23/2013] [Accepted: 06/04/2013] [Indexed: 06/02/2023]
Abstract
In the present work, an interaction of four cholinesterase modulators (1-4) with calf thymus DNA was studied via spectroscopic techniques (UV-Vis, fluorescent spectroscopy and circular dichroism). From UV-Vis spectroscopic analysis, the binding constants for DNA-pyridinium oximes complexes were calculated (K=3.5×10(4) to 1.4×10(5)M(-1)). All these measurements indicated that the compounds behave as effective DNA-interacting agents. Electrophoretic techniques proved that ligand 2 inhibited topoisomerase I at a concentration 5μM.
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Affiliation(s)
- Jana Janockova
- Institute of Chemistry, Department of Biochemistry, P.J. Šafárik University, Faculty of Science, Moyzesova 11, 04001 Kosice, Slovak Republic
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Genotoxic potentials and eukaryotic DNA topoisomerase I inhibitory effects of some benzoxazine derivatives. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0658-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Abstract
Anthracyclines have received significant attention due to their effectiveness and extensive use as anticancer agents. At present, the clinical use of these drugs is offset by drug resistance in tumours and cardiotoxicity. Therefore, a relentless search for the 'better anthracycline' has been ongoing since the inception of these drugs > 30 years ago. This review focuses on the most recent pharmacology and medicinal chemistry developments on the design and use of anthracyclines. Based on their crystal structures as well as molecular modelling, a more detailed mechanism of topoisomerase poisoning by these new anthracyclines has emerged. Chemical modifications of anthracyclines have been found to possibly change the target selectivity among various topoisomerases and, thus, vary their anticancer activity. Additionally, recent sugar modifications of anthracyclines have also been found to overcome P-glycoprotein-mediated drug resistance in cancer therapy. The continued improvement of anthracycline clinical applications so far and the clinical trials of the 'third generation' of anthracyclines (such as sabarubicin) are also discussed. To finally find the 'better' anthracycline, further areas of research still need to be explored such as: the elucidation of the topoisomerase and P-glycoprotein crystal structures, molecular modelling based on crystal structure in order to design the next generation of better anthracycline drugs, the continued modifications of the anthracycline sugar moieties, and the further improvement of anthracycline drug delivery methods.
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Affiliation(s)
- Janos Nadas
- Department of Chemistry, College of Pharmacy, The Ohio Sate University, Columbus, OH 43210, USA
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Structure and stability of human telomeric G-quadruplex with preclinical 9-amino acridines. PLoS One 2013; 8:e57701. [PMID: 23554865 PMCID: PMC3598906 DOI: 10.1371/journal.pone.0057701] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Accepted: 01/23/2013] [Indexed: 11/30/2022] Open
Abstract
G-quadruplexes are higher-order DNA structures formed from guanine-rich sequences, and have been identified as attractive anticancer drug targets. Elucidating the three-dimensional structure of G-quadruplex with 9-amino acridines and the specific interactions involved in binding selectivity are the key to understanding their mechanism of action. Fluorescence titration assays, competitive dialysis and NMR studies have been used to study the binding specificity of 9-amino acridines to DNA. Structural models of the complexes with the telomeric DNA G-quadruplex based on NMR measurements were developed and further examined by molecular dynamics simulations and free energy calculations. Selective binding of 9-amino acridines for G-quadruplex sequences were observed. These compounds bind between A and G-tetrads, involving significant π-π interactions and several strong hydrogen bonds. The specific interactions between different moieties of the 9-amino acridines to the DNA were examined and shown to play a significant role in governing the overall stabilities of DNA G-quadruplex complexes. Both 9-amino acridines, with similar binding affinities to the G-quadruplex, were shown to induce different level of structural stabilization through intercalation. This unique property of altering structural stability is likely a contributing factor for affecting telomerase function and, subsequently, the observed differences in the anticancer activities between the two 9-amino acridines.
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A facile sequential three-component regio- and stereoselective synthesis of novel spiro-isoxazoline/acridinone hybrids. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.09.105] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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3,6-bis(3-alkylguanidino)acridines as DNA-intercalating antitumor agents. Eur J Med Chem 2012; 57:283-95. [PMID: 23072739 DOI: 10.1016/j.ejmech.2012.09.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Revised: 09/12/2012] [Accepted: 09/13/2012] [Indexed: 11/20/2022]
Abstract
A series of 3,6-bis(3-alkylguanidino) acridines was prepared and the interaction of these novel compounds with calf thymus DNA was investigated with UV-vis, fluorescence and circular dichroism spectroscopy, in addition to DNA melting techniques. The binding constants K were estimated to range from 1.25 to 5.26 × 10(5) M(-1), and the percentage of hypochromism was found to be 17-42% (from spectral titration). UV-vis, fluorescence and circular dichroism measurements indicated that the compounds act as effective DNA-intercalating agents. Electrophoretic separation proved that ligands 6a-e relaxed topoisomerase I at a concentration of 60 μM, although only those with longer alkyl chains were able to penetrate cell membranes and suppress cell proliferation effectively. The biological activity of novel compounds was assessed using different techniques (cell cycle distribution, phosphatidylserine externalization, caspase-3 activation, changes in mitochondrial membrane potential) and demonstrated mostly transient cytostatic action of the ethyl 6c and pentyl 6d derivatives. The hexyl derivative 6e proved to be the most cytotoxic. Different patterns of cell penetration were also observed for individual derivatives. Principles of molecular dynamics were applied to explore DNA-ligand interactions at the molecular level.
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Thapa P, Lee ES. 2,4-Diaryl-5H-chromeno [4,3-b]pyridines: Synthesis, Topoisomerase I and II Inhibitory Activity, and Cytotoxicity. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.9.3103] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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