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Nagarajaiah S, Shivanna Giresha A, Gopala Krishna P, Manikrao Gadewar M, Praveen M, Nanda N, Urs D, Krishnappa Dharmappa K, Mutta Nagabhushana B, Rao S, Mahadeva Swamy M, Venkatesh Yatish K. Anti-oncogenic Potential and Inflammation Modulatory Response of Green Synthesized Biocompatible Silver Nanoparticles. Chem Biodivers 2024; 21:e202301533. [PMID: 38156969 DOI: 10.1002/cbdv.202301533] [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: 09/29/2023] [Revised: 12/25/2023] [Accepted: 12/29/2023] [Indexed: 01/03/2024]
Abstract
This study presents a novel approach to synthesizing silver nanoparticles (Ag NPs) using a solution combustion synthesis (SCS) method with Catharanthus roseus (C. roseus) leaf extract. The NPs were thoroughly characterized through X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray (EDX), Transmission electron microscopy (TEM), and Selected area electron diffraction (SAED), elucidating their crystal structure. Notably, the synthesized Ag NPs exhibited a significant dose-dependent decline in viability of the MDA-MB 231 breast cancer cell line, with an IC50 value of 13.3 μg/mL, underscoring their potential as potent anticancer agent. Beyond cytotoxicity, the study pioneers an investigation into the biocompatibility of Ag NPs by blood hemolsysis, providing critical insights into their safety and biomedical applicability. Furthermore, this research uncovers a distinctive facet of Ag NPs, revealing their inhibitory effects on the inflammatory enzyme secretory phospholipase A2 (sPLA2), a recognized biomarker for breast cancer. The demonstrated in vitro and in vivo inhibition of sPLA2 highlights the multifaceted potential of Ag NPs in not only targeting cancer cells but also modulating inflammatory responses associated with breast cancer, positioning the study at the forefront of advancements in nanomedicine and cancer therapeutics.
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Affiliation(s)
- Shobha Nagarajaiah
- Department of Chemistry, Maharani's Science College for Women, Maharani Cluster University, 560 001, Bengaluru, India
| | - Aladahalli Shivanna Giresha
- Department of Biochemistry, Jain (Deemed-to-be University), School of Science, JC Road, 560 027, Bangalore, India
| | - Prashanth Gopala Krishna
- Research and Development Center, Department of Chemistry, Sir M. Visvesvaraya Institute of Technology, 562 157, Bengaluru, India
| | - Manoj Manikrao Gadewar
- Department of Pharmacology, School of Medical and Allied Sciences, KR Mangalam University, 122 103, Gurgaon, India
| | - Manjappa Praveen
- Centre for Advanced Materials Technology (CAMT), M.S Ramaiah Institute of Technology, 560 054, Bengaluru, India
| | - Nagappa Nanda
- Department of Chemistry, BMS College of Engineering, 560 019, Bengaluru, India
| | - Deepadarshan Urs
- Inflammation Research Laboratory, Department of Studies and Research in Biochemistry, Mangalore University, Jnana Kaveri Post Graduate Centre, Chikka Aluvara, 571 232, Kodagu, India
| | - Kattepura Krishnappa Dharmappa
- Inflammation Research Laboratory, Department of Studies and Research in Biochemistry, Mangalore University, Jnana Kaveri Post Graduate Centre, Chikka Aluvara, 571 232, Kodagu, India
| | | | - Srilatha Rao
- Department of Chemistry, Nitte Meenakshi Institute of Technology, 560 064, Bengaluru, India
| | - Mallanna Mahadeva Swamy
- Department of PG Chemistry, JSS College of Arts Commerce and Science, 570 025, Mysuru, India
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Davies-Coleman MT, McPhail KL, Parker-Nance S. A Quarter Century of Marine Biodiscovery in Algoa Bay, South Africa. JOURNAL OF NATURAL PRODUCTS 2023; 86:638-652. [PMID: 36853972 DOI: 10.1021/acs.jnatprod.2c00987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Algoa Bay, the largest crenulate bay on the southeastern coast of South Africa, is currently one of the most well-studied marine ecosystems in southern Africa. A plethora of endemic marine invertebrates inhabits the benthic reefs on the western edge of the Bay in close proximity to South Africa's sixth largest city. Over the past 25 years, South African marine natural products chemists, together with international collaborators from the US National Cancer Institute and other US institutions, have focused their attention on Algoa Bay's benthic marine invertebrates as a potential source of new anticancer compounds. This review commemorates a quarter of a century of marine biodiscovery in Algoa Bay and presents the structures and bioactivities of 49 new and 36 known specialized metabolites isolated from two molluscs, eight ascidians, and six sponges. Thirty-nine of these compounds were cytotoxic to cancer cells in vitro with 20 exhibiting moderate to potent cytotoxicity. Six other compounds exhibited antimicrobial activity. Foremost among the potential anticancer compounds is mandelalide A (38) from the Algoa Bay ascidian Lissoclinum species.
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Affiliation(s)
- Michael T Davies-Coleman
- Department of Chemistry, University of the Western Cape, Bellville, 7535, South Africa and Department of Chemistry, Rhodes University, Makhanda, 6140, South Africa
| | - Kerry L McPhail
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, Oregaon 97331, United States
| | - Shirley Parker-Nance
- South African Environmental Observation Network, Elwandle Coastal Node, Nelson Mandela University, Ocean Sciences Campus, Summerstrand, Gqeberha, 6001, South Africa
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3
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Torres-Vargas JA, Cheng-Sánchez I, Martínez-Poveda B, Medina MÁ, Sarabia F, García-Caballero M, Quesada AR. Characterization of the activity and the mechanism of action of a new toluquinol derivative with improved potential as an antiangiogenic drug. Biomed Pharmacother 2022; 155:113759. [DOI: 10.1016/j.biopha.2022.113759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 09/12/2022] [Accepted: 09/26/2022] [Indexed: 11/02/2022] Open
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Avila C, Angulo-Preckler C. Bioactive Compounds from Marine Heterobranchs. Mar Drugs 2020; 18:657. [PMID: 33371188 PMCID: PMC7767343 DOI: 10.3390/md18120657] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/05/2020] [Accepted: 12/07/2020] [Indexed: 12/22/2022] Open
Abstract
The natural products of heterobranch molluscs display a huge variability both in structure and in their bioactivity. Despite the considerable lack of information, it can be observed from the recent literature that this group of animals possesses an astonishing arsenal of molecules from different origins that provide the molluscs with potent chemicals that are ecologically and pharmacologically relevant. In this review, we analyze the bioactivity of more than 450 compounds from ca. 400 species of heterobranch molluscs that are useful for the snails to protect themselves in different ways and/or that may be useful to us because of their pharmacological activities. Their ecological activities include predator avoidance, toxicity, antimicrobials, antifouling, trail-following and alarm pheromones, sunscreens and UV protection, tissue regeneration, and others. The most studied ecological activity is predation avoidance, followed by toxicity. Their pharmacological activities consist of cytotoxicity and antitumoral activity; antibiotic, antiparasitic, antiviral, and anti-inflammatory activity; and activity against neurodegenerative diseases and others. The most studied pharmacological activities are cytotoxicity and anticancer activities, followed by antibiotic activity. Overall, it can be observed that heterobranch molluscs are extremely interesting in regard to the study of marine natural products in terms of both chemical ecology and biotechnology studies, providing many leads for further detailed research in these fields in the near future.
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Affiliation(s)
- Conxita Avila
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
| | - Carlos Angulo-Preckler
- Department of Evolutionary Biology, Ecology, and Environmental Sciences, Biodiversity Research Institute (IrBIO), Faculty of Biology, University of Barcelona, Av. Diagonal 643, 08028 Barcelona, Catalonia, Spain;
- Norwegian College of Fishery Science, UiT The Arctic University of Norway, Hansine Hansens veg 18, 9019 Tromsø, Norway
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Patra S, Praharaj PP, Panigrahi DP, Panda B, Bhol CS, Mahapatra KK, Mishra SR, Behera BP, Jena M, Sethi G, Patil S, Patra SK, Bhutia SK. Bioactive compounds from marine invertebrates as potent anticancer drugs: the possible pharmacophores modulating cell death pathways. Mol Biol Rep 2020; 47:7209-7228. [PMID: 32797349 DOI: 10.1007/s11033-020-05709-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 08/02/2020] [Indexed: 12/24/2022]
Abstract
Marine invertebrates are extremely diverse, largely productive, untapped oceanic resources with chemically unique bioactive lead compound contributing a wide range of screening for the discovery of anticancer compounds. The lead compounds have unfurled an extensive array of pharmacological properties owing to the presence of polyphenols, alkaloids, terpenoids and other secondary metabolites. The antioxidant, immunomodulatory and anti-tumor activities exhibited, are possibly regulated by the apoptosis induction, scavenging of ROS and modulation of cellular signaling pathways to defy the cellular deafness during carcinogenesis. Despite the enriched bioactive compounds, the marine invertebrates are largely unexplored as identification, screening, pre-clinical and clinical assessment of lead compounds and their synthetic analogs remain a major task to be solved. In the current review, we focus on the principle strategy and underlying mechanisms deployed by the bioactive anticancer compounds derived from marine invertebrates to combat cancer with special insight into the cell death mechanism.
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Affiliation(s)
- Srimanta Patra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Prakash Priyadarshi Praharaj
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Debasna Pritimanjari Panigrahi
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Biswajit Panda
- College of Basic Science & Humanities OUAT, Bhubaneswar, 751003, India
| | - Chandra Sekhar Bhol
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Kewal Kumar Mahapatra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Soumya Ranjan Mishra
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Bishnu Prasad Behera
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Mrutyunjay Jena
- PG Department of Botany, Berhampur University, Berhampur, 760007, India
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117600, Singapore
| | - Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Samir Kumar Patra
- Epigenetics and Cancer Research Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India
| | - Sujit Kumar Bhutia
- Cancer and Cell Death Laboratory, Department of Life Science, National Institute of Technology Rourkela, Rourkela, 769008, India. .,Department of Life Science, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India.
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Zayed EM, El-Samahy FA, Mohamed GG. Structural, spectroscopic, molecular docking, thermal and DFT studies on metal complexes of bidentate orthoquinone ligand. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5065] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ehab M. Zayed
- Green Chemistry Department; National Research Centre; Dokki Giza 12622 Egypt
| | - Fatma A. El-Samahy
- Green Chemistry Department; National Research Centre; Dokki Giza 12622 Egypt
| | - Gehad G. Mohamed
- Chemistry Department, Faculty of Science; Cairo University; Giza 12613 Egypt
- Egypt Nanotechnology Center; Cairo University; El-Sheikh Zayed, 6 October 12588 Egypt
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7
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Sunassee SN, van Wyk AW, Osoniyi O, Hendricks DT, Davies-Coleman MT. Synthesis and Cytotoxicity of Analogues of the Marine Secondary Metabolite, 2-Deoxylapachol. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823407x270437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The syntheses of four 2-substituted 1,4 naphthoquinones, related to the marine natural product 2-deoxylapachol, are reported. All four synthetic compounds were cytotoxic to WHCO1 oesophageal cancer cells.
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Affiliation(s)
| | | | - Omolaja Osoniyi
- Division of Medical Biochemistry, University of Cape Town, Rondebosch, South Africa
| | - Denver T. Hendricks
- Division of Medical Biochemistry, University of Cape Town, Rondebosch, South Africa
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Abstract
Covering: up to the end of February 2017Nudibranchs have attracted the attention of natural product researchers due to the potential for discovery of bioactive metabolites, in conjunction with the interesting predator-prey chemical ecological interactions that are present. This review covers the literature published on natural products isolated from nudibranchs up to February 2017 with species arranged taxonomically. Selected examples of metabolites obtained from nudibranchs across the full range of taxa are discussed, including their origins (dietary or biosynthetic) if known and biological activity.
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Affiliation(s)
- Lewis J Dean
- School of Science, University of Waikato, Hamilton 3240, New Zealand.
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Ciavatta ML, Lefranc F, Carbone M, Mollo E, Gavagnin M, Betancourt T, Dasari R, Kornienko A, Kiss R. Marine Mollusk-Derived Agents with Antiproliferative Activity as Promising Anticancer Agents to Overcome Chemotherapy Resistance. Med Res Rev 2017; 37:702-801. [PMID: 27925266 PMCID: PMC5484305 DOI: 10.1002/med.21423] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Revised: 09/20/2016] [Accepted: 09/23/2016] [Indexed: 12/18/2022]
Abstract
The chemical investigation of marine mollusks has led to the isolation of a wide variety of bioactive metabolites, which evolved in marine organisms as favorable adaptations to survive in different environments. Most of them are derived from food sources, but they can be also biosynthesized de novo by the mollusks themselves, or produced by symbionts. Consequently, the isolated compounds cannot be strictly considered as "chemotaxonomic markers" for the different molluscan species. However, the chemical investigation of this phylum has provided many compounds of interest as potential anticancer drugs that assume particular importance in the light of the growing literature on cancer biology and chemotherapy. The current review highlights the diversity of chemical structures, mechanisms of action, and, most importantly, the potential of mollusk-derived metabolites as anticancer agents, including those biosynthesized by mollusks and those of dietary origin. After the discussion of dolastatins and kahalalides, compounds previously studied in clinical trials, the review covers potentially promising anticancer agents, which are grouped based on their structural type and include terpenes, steroids, peptides, polyketides and nitrogen-containing compounds. The "promise" of a mollusk-derived natural product as an anticancer agent is evaluated on the basis of its ability to target biological characteristics of cancer cells responsible for poor treatment outcomes. These characteristics include high antiproliferative potency against cancer cells in vitro, preferential inhibition of the proliferation of cancer cells over normal ones, mechanism of action via nonapoptotic signaling pathways, circumvention of multidrug resistance phenotype, and high activity in vivo, among others. The review also includes sections on the targeted delivery of mollusk-derived anticancer agents and solutions to their procurement in quantity.
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Affiliation(s)
- Maria Letizia Ciavatta
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Florence Lefranc
- Service de Neurochirurgie, Hôpital ErasmeUniversité Libre de Bruxelles (ULB)1070BrusselsBelgium
| | - Marianna Carbone
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Ernesto Mollo
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Margherita Gavagnin
- Consiglio Nazionale delle Ricerche (CNR)Istituto di Chimica Biomolecolare (ICB)Via Campi Flegrei 3480078PozzuoliItaly
| | - Tania Betancourt
- Department of Chemistry and BiochemistryTexas State UniversitySan MarcosTX78666
| | - Ramesh Dasari
- Department of Chemistry and BiochemistryTexas State UniversitySan MarcosTX78666
| | - Alexander Kornienko
- Department of Chemistry and BiochemistryTexas State UniversitySan MarcosTX78666
| | - Robert Kiss
- Laboratoire de Cancérologie et de Toxicologie ExpérimentaleFaculté de Pharmacie, Université Libre de Bruxelles (ULB)1050BrusselsBelgium
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Nakayama K, Murata S, Ito H, Iwasaki K, Villareal MO, Zheng YW, Matsui H, Isoda H, Ohkohchi N. Terpinen-4-ol inhibits colorectal cancer growth via reactive oxygen species. Oncol Lett 2017; 14:2015-2024. [PMID: 28781645 PMCID: PMC5530226 DOI: 10.3892/ol.2017.6370] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 03/19/2017] [Indexed: 12/22/2022] Open
Abstract
Terpinen-4-ol (TP4O) is the main component of the essential oil extracted from Melaleuca alternifolia, known as the tea tree, of the botanical family Myrtaceae. The anticancer effects of TP4O have been reported in several cancer cell lines. Previous reports have demonstrated that TP4O exerts anticancer effects by inducing apoptotic cell death in several cell lines; however, the underlying molecular mechanisms of these effects remain unclear. In the present study, the anticancer effects of TP4O against the colorectal cancer (CRC) cell lines HCT116 and RKO were evaluated using WST-8 and bromodeoxyuridine assays. The mechanism of cell death was investigated by the measurement of caspase-3/7, Annexin V and lactate dehydrogenase release. Reactive oxygen species (ROS) levels induced by TP4O were evaluated by electron spin resonance and quantitative measurement of dihydroethidium. Localization of the ROS derived from mitochondria was observed by confocal inverted microscopy. Protein levels of ROS scavengers were assessed by western blotting analysis. To confirm the role of ROS, cell viability was measured in the presence of antioxidant reagents. In an in vivo xenograft model of ICR-SCID mice implanted with HCT116 cells, 200 mg/kg TP4O was injected locally, and tumor growth was compared with that of the control. TP4O induced apoptotic cell death in HCT116 and RKO cells in a dose-dependent manner, and TP4O also increased the levels of ROS generated by mitochondria. TP4O-induced cell death was rescued by administration of antioxidant regents. In vivo, TP4O inhibited the proliferation of HCT116 xenografts compared with that of the control group. The results of the present study suggest that TP4O induces apoptosis in CRC cells through ROS generation. Furthermore, TP4O is potentially useful for the development of novel therapies against CRC.
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Affiliation(s)
- Ken Nakayama
- Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery, and Organ Transplantation, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Soichiro Murata
- Department of Regenerative Medicine, Yokohama University, Yokohama, Kanagawa 236-0004, Japan
| | - Hiromu Ito
- Department of Gastroenterology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Kenichi Iwasaki
- Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery, and Organ Transplantation, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Myra Orlina Villareal
- Faculty of Life and Environmental Sciences, University of Tsukuba Alliance of Research on North Africa, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan
| | - Yun-Wen Zheng
- Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery, and Organ Transplantation, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hirofumi Matsui
- Department of Gastroenterology, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
| | - Hiroko Isoda
- Faculty of Life and Environmental Sciences, University of Tsukuba Alliance of Research on North Africa, University of Tsukuba, Tsukuba, Ibaraki 305-8572, Japan
| | - Nobuhiro Ohkohchi
- Department of Surgery, Division of Gastroenterological and Hepatobiliary Surgery, and Organ Transplantation, Faculty of Medicine, University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan
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Ackermann A, Karagöz AÇ, Ghoochani A, Buchfelder M, Eyüpoglu I, Tsogoeva SB, Savaskan N. Cytotoxic profiling of artesunic and betulinic acids and their synthetic hybrid compound on neurons and gliomas. Oncotarget 2017; 8:61457-61474. [PMID: 28977877 PMCID: PMC5617437 DOI: 10.18632/oncotarget.18390] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 05/07/2017] [Indexed: 01/11/2023] Open
Abstract
Gliomas are brain-born tumors with devastating impact on their brain microenvironment. Novel approaches employ multiple combinations of chemical compounds in synthetic hybrid molecules to target malignant tumors. Here, we report on the chemical hybridization approach exemplified by artesunic acid (ARTA) and naturally occurring triterpene betulinic acid (BETA). Artemisinin derived semisynthetic compound artesunic acid (ARTA) and naturally occurring triterpene BETA were used to synthetically couple to the hybrid compound termed 212A. We investigated the impact of 212A and its parent compounds on glioma cells, astrocytes and neurons. ARTA and BETA showed cytotoxic effects on glioma cells at micromolar concentrations. ARTA was more effective on rodent glioma cells compared to BETA, whereas BETA exhibited higher toxic effects on human glioma cells compared to ARTA. We investigated these compounds on non-transformed glial cells and neurons as well. Noteworthy, ARTA showed almost no toxic effects on astrocytes and neurons, whereas BETA as well as 212A displayed neurotoxicity at higher concentrations. Hence we compared the efficacy of the hybrid 212A with the combinational treatment of its parent compounds ARTA and BETA. The hybrid 212A was efficient in killing glioma cells compared to single compound treatment strategies. Moreover, ARTA and the hybrid 212A displayed a significant cytotoxic impact on glioma cell migration. Taken together, these results demonstrate that both plant derived compounds ARTA and BETA operate gliomatoxic with minor neurotoxic side effects. Altogether, our proof-of-principle study demonstrates that the chemical hybrid synthesis is a valid approach for generating efficacious anti-cancer drugs out of virtually any given structure. Thus, synthetic hybrid therapeutics emerge as an innovative field for new chemotherapeutic developments with low neurotoxic profile.
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Affiliation(s)
- Annemarie Ackermann
- Translational Cell Biology & Neurooncology Laboratory, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany
| | - Aysun Çapcı Karagöz
- Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany
| | - Ali Ghoochani
- Translational Cell Biology & Neurooncology Laboratory, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany
| | - Michael Buchfelder
- Department of Neurosurgery, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany
| | - Ilker Eyüpoglu
- Translational Cell Biology & Neurooncology Laboratory, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany.,Department of Neurosurgery, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany
| | - Svetlana B Tsogoeva
- Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany
| | - Nicolai Savaskan
- Translational Cell Biology & Neurooncology Laboratory, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany.,Department of Neurosurgery, Universitätsklinikum Medical School Erlangen, Friedrich-Alexander University of Erlangen - Nürnberg (FAU), Erlangen, Germany.,BiMECON Ent., Berlin, Germany
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12
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Banerjee PP, Bandyopadhyay A, Harsha SN, Policegoudra RS, Bhattacharya S, Karak N, Chattopadhyay A. Mentha arvensis (Linn.)-mediated green silver nanoparticles trigger caspase 9-dependent cell death in MCF7 and MDA-MB-231 cells. BREAST CANCER-TARGETS AND THERAPY 2017; 9:265-278. [PMID: 28458579 PMCID: PMC5402903 DOI: 10.2147/bctt.s130952] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
INTRODUCTION Leaf extract of Mentha arvensis or mint plant was used as reducing agent for the synthesis of green silver nanoparticles (GSNPs) as a cost-effective, eco-friendly process compared to that of chemical synthesis. The existence of nanoparticles was characterized by ultraviolet-visible spectrophotometry, dynamic light scattering, Fourier transform infrared spectroscopy, X-ray diffraction, energy-dispersive X-ray analysis, atomic-force microscopy and transmission electron microscopy analyses, which ascertained the formation of spherical GSNPs with a size range of 3-9 nm. Anticancer activities against breast cancer cell lines (MCF7 and MDA-MB-231) were studied and compared with those of chemically synthesized (sodium borohydride [NaBH4]-mediated) silver nanoparticles (CSNPs). MATERIALS AND METHODS Cell survival of nanoparticle-treated and untreated cells was studied by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyltetrazolium bromide (MTT) assay. Cell-cycle analyses were carried out using fluorescence-activated cell sorting. Cell morphology was observed by fluorescence microscopy. Expression patterns of PARP1, P53, P21, Bcl2, Bax and cleaved caspase 9 as well as caspase 3 proteins in treated and untreated MCF7 and MDA-MB-231 cells were studied by Western blot method. RESULTS MTT assay results showed that Mentha arvensis-mediated GSNPs exhibited significant cytotoxicity toward breast cancer cells (MCF7 and MDA-MB-231), which were at par with that of CSNPs. Cell cycle analyses of MCF7 cells revealed a significant increase in sub-G1 cell population, indicating cytotoxicity of GSNPs. On the other hand, human peripheral blood lymphocytes showed significantly less cytotoxicity compared with MCF7 and MDA-MB-231 cells when treated with the same dose. Expression patterns of proteins suggested that GSNPs triggered caspase 9-dependent cell death in both cell lines. The Ames test showed that GSNPs were nonmutagenic in nature. CONCLUSION GSNPs synthesized using Mentha arvensis may be considered as a promising anticancer agent in breast cancer therapy. They are less toxic and nonmutagenic and mediate caspase 9-dependent apoptosis in MCF7 and MDA-MB-231 cells.
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Affiliation(s)
| | - Arindam Bandyopadhyay
- Molecular Genetics Laboratory, Department of Zoology, Visva-Bharati, Santiniketan, West Bengal
| | - Singapura Nagesh Harsha
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical Sciences, Center for Polymer Science and Technology, Tezpur University, Napaam
| | | | - Shelley Bhattacharya
- Environmental Toxicology Laboratory, Department of Zoology, Visva-Bharati, Santiniketan, West Bengal, India
| | - Niranjan Karak
- Advanced Polymer and Nanomaterial Laboratory, Department of Chemical Sciences, Center for Polymer Science and Technology, Tezpur University, Napaam
| | - Ansuman Chattopadhyay
- Molecular Genetics Laboratory, Department of Zoology, Visva-Bharati, Santiniketan, West Bengal
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13
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Evaluation of folic acid tagged aminated starch/ZnO coated iron oxide nanoparticles as targeted curcumin delivery system. Carbohydr Polym 2017; 157:391-399. [DOI: 10.1016/j.carbpol.2016.09.087] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 09/28/2016] [Indexed: 01/07/2023]
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14
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Hazra S, Paul A, Sharma G, Koch B, da Silva MFCG, Pombeiro AJL. Sulfonated Schiff base Sn(IV) complexes as potential anticancer agents. J Inorg Biochem 2016; 162:83-95. [PMID: 27338202 DOI: 10.1016/j.jinorgbio.2016.06.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2016] [Revised: 05/13/2016] [Accepted: 06/03/2016] [Indexed: 12/13/2022]
Abstract
Syntheses, crystal structures and biological activities of the diphenoxo-bridged diorgano dinuclear Sn(IV) compounds [Sn(Et)2(HL)(H2O)]2 (1) and [Sn(n-Bu)2(HL)(H2O)]2 (2) derived from the Schiff base 2-[(2,3-dihydroxyphenyl)methylideneamino]benzenesulfonic acid trihydrate (H3L·3H2O) are described. The monoprotonated form (HL2-) of the Schiff base behaves as O,O'-bidentate ligand, chelating the metal by the two phenoxo oxygen atoms. The hexacoordinated metal centres in 1 and 2 are bridged by a phenoxo oxygen and the remaining coordination positions are fulfilled by the other phenoxo oxygen, two organic groups (ethyl for 1 and n-butyl for 2) and a water molecule. A two dimensional zigzag sheet in 1 and three dimensional polymeric networks in H3L·3H2O and 2 are stabilized by a number of non-covalent, H-bonding and π⋯π stacking interactions. The DNA binding activities of these complexes have been studied by UV-vis and fluorescence spectroscopies. Their antiproliferative efficacies have been evaluated on A-549, HeLa and MDA-MB-231 cancer cell lines by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. IC50 values (1.35±0.23, 2.43±0.54 and 1.74±0.04μM for 2) are indicative of a substantial cytotoxicity of 2, mainly towards the A-549 lung cancer cell line. The greater antiproliferative efficacy of 2has further been studied by fluorescence activated cell sorting (FACS) and nuclear morphology by Hoechst/propidium iodide (PI) double staining method. The possible mode of the apoptotic pathway for 2has been substantiated by the reactive oxygen species (ROS) generation studies.
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Affiliation(s)
- Susanta Hazra
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Anup Paul
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
| | - Gunjan Sharma
- Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India
| | - Biplob Koch
- Department of Zoology, Faculty of Science, Banaras Hindu University, Varanasi 221 005, India.
| | - M Fátima C Guedes da Silva
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal.
| | - Armando J L Pombeiro
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisbon, Portugal
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15
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Response of esophageal cancer cells to epigenetic inhibitors is mediated via altered thioredoxin activity. J Transl Med 2016; 96:307-16. [PMID: 26692290 DOI: 10.1038/labinvest.2015.148] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 08/14/2015] [Accepted: 09/03/2015] [Indexed: 01/01/2023] Open
Abstract
We previously showed that histone deacetylase inhibitor (HDACi) and 5-azacytidine (AZA) treatment selectively induced cell death of esophageal cancer cells. The mechanisms of cancer selectivity, however, remained unclear. Here we examined whether the cancer selectivity of HDACi/AZA treatment is mediated by the thioredoxin (Trx) system and reactive oxygen species (ROS) in esophageal cancer cells. For this, we first analyzed human tissue specimens of 37 esophageal cancer patients by immunohistochemistry for Trx, Trx-interacting protein (TXNIP) and Trx reductase (TXNRD). This revealed a loss or at least reduction of nuclear Trx in esophageal cancer cells, compared with normal epithelial cells (P<0.001). Although no differences were observed for TXNIP, TXNRD was more frequently expressed in cancer cells (P<0.001). In the two main histotypes of esophageal squamous cell carcinomas (ESCCs, n=19) and esophageal adenomcarcinomas (EAC, n=16), similar Trx, TXNIP and TXNRD expression patterns were observed. Also in vitro, nuclear Trx was only detectable in non-neoplastic Het-1A cells, but not in OE21/ESCC or OE33/EAC cell lines. Moreover, the two cancer cell lines showed an increased Trx activity, being significant for OE21 (P=0.0237). After treatment with HDACi and/or AZA, ROS were exclusively increased in both cancer cell lines (P=0.048-0.017), with parallel decrease of Trx activity. This was variably accompanied by increased TXNIP levels upon AZA, MS-275 or MS-275/AZA treatment for 6 or 24 h in OE21, but not in Het-1A or OE33 cells. In summary, this study evaluated Trx and its associated proteins TXNIP and TXNRD for the first time in esophageal cancers. The analyses revealed an altered subcellular localization of Trx and strong upregulation of TXNRD in esophageal cancer cells. Moreover, HDACi and AZA disrupted Trx function and induced accumulation of ROS with subsequent apoptosis in esophageal cancer cells exclusively. Trx function is hence an important cellular mediator conferring non-neoplastic cell resistance for HDACi and/or AZA.
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16
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Kumar B, Iqbal MA, Singh RK, Bamezai RNK. Resveratrol inhibits TIGAR to promote ROS induced apoptosis and autophagy. Biochimie 2015. [PMID: 26212201 DOI: 10.1016/j.biochi.2015.07.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Resveratrol has been shown to exhibit its anti-cancer effect through a variety of mechanisms. Here, TIGAR (TP53-Induced Glycolysis and Apoptosis Regulator) was identified as an important target of resveratrol for exhibiting ROS-dependent-consequences on apoptosis and autophagy. Resveratrol treatment decreased TIGAR protein irrespective of cell line used. Down-regulated TIGAR protein triggered a drop in reduced-glutathione levels which resulted in sustained ROS, responsible for apoptosis and autophagy. Over-expression and silencing experiments demonstrated the importance of TIGAR in affecting the ROS-dependent anti-cancer effects of resveratrol. Resveratrol treated cells exhibited autophagy to escape apoptosis, however, chloroquine treatment along with resveratrol, blocked protective autophagy and facilitated apoptosis. Collectively, results unravel the effects of resveratrol on TIGAR in mediating its ROS dependent influence and suggest a better combination therapy of resveratrol and chloroquine for probable cancer treatment.
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Affiliation(s)
- Bhupender Kumar
- National Centre of Applied Human Genetics, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Mohammad Askandar Iqbal
- National Centre of Applied Human Genetics, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Rajnish Kumar Singh
- National Centre of Applied Human Genetics, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Rameshwar N K Bamezai
- National Centre of Applied Human Genetics, School of Life Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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17
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Nagababu P, Barui AK, Thulasiram B, Devi CS, Satyanarayana S, Patra CR, Sreedhar B. Antiangiogenic Activity of Mononuclear Copper(II) Polypyridyl Complexes for the Treatment of Cancers. J Med Chem 2015; 58:5226-41. [DOI: 10.1021/acs.jmedchem.5b00651] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Penumaka Nagababu
- Inorganic & Physical Chemistry Division, CSIR−Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana State, India
| | - Ayan Kumar Barui
- Biomaterials
Group, CSIR−Indian Institute of Chemical Technology, Uppal Road,
Tarnaka, Hyderabad 500007, Telangana State, India
- Academy of Scientific & Innovative Research (AcSIR), 2 Rafi Marg, New Delhi 600113, India
| | - Bathini Thulasiram
- Inorganic & Physical Chemistry Division, CSIR−Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana State, India
| | - C. Shobha Devi
- Department
of Chemistry, National Dong Hwa University, Hualien, Taiwan ROC
| | - S. Satyanarayana
- Department
of Chemistry, Osmania University, Tarnaka, Hyderabad 500007, Telangana
State India
| | - Chitta Ranjan Patra
- Biomaterials
Group, CSIR−Indian Institute of Chemical Technology, Uppal Road,
Tarnaka, Hyderabad 500007, Telangana State, India
- Academy of Scientific & Innovative Research (AcSIR), 2 Rafi Marg, New Delhi 600113, India
| | - Bojja Sreedhar
- Inorganic & Physical Chemistry Division, CSIR−Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad 500007, Telangana State, India
- Academy of Scientific & Innovative Research (AcSIR), 2 Rafi Marg, New Delhi 600113, India
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18
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Hwang D, Son BW, Shin PG, Choi JS, Seo YB, Kim GD. Toluhydroquinone from A
spergillus sp. suppress inflammatory mediators via nuclear factor-κB and mitogen-activated protein kinases pathways in lipopolysaccharide-induced RAW264.7 cells. J Pharm Pharmacol 2015; 67:1297-305. [DOI: 10.1111/jphp.12421] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 03/01/2015] [Indexed: 12/12/2022]
Abstract
Abstract
Objectives
The purpose of this study is to investigate anti-inflammatory effects of toluhydroquinone in lipopolysaccharide (LPS)-stimulated RAW264.7 cells.
Methods
Toluhydroquinone was purified from a fungal strain, Aspergillus sp. We investigated that levels of nitric oxide (NO) using Griess reagent, production of prostaglandin E2 (PGE2) and pro-inflammatory cytokines using ELISA assay. We conducted Western blot analysis to investigate regulatory effects of toluhydroquinone on expression of inducible nitric oxide synthase (iNOS), cyclooxyganse-2 (COX-2), nuclear factor-κB (NF-κB), Akt and mitogen-activated protein kinases (MAPKs) in LPS-stimulated RAW264.7 cells. The translocation of NF-κB was detected by immunofluorescence staining.
Key findings
Toluhydroquinone inhibited production of NO and PGE2 via suppressing protein expression of iNOS and COX-2, respectively. Secretion and expression of inflammatory cytokines were down-regulated by toluhydroquinone as well. Toluhydroquinone reduced phosphorylation of Akt, NF-κB and MAPKs. Moreover, toluhydroquinone inhibited translocation of NF-κB from the cytosol into the nucleus.
Conclusions
We revealed that inhibitory effects of toluhydroquinone on expression of inflammatory mediators are induced through inactivation of Akt, NF-κB and MAPKs. Thus, our results suggest that toluhydroquinone may be used for a potential anti-inflammatory reagent.
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Affiliation(s)
- Dukhyun Hwang
- Department of Microbiology, College of Natural Sciences, Pukyong National University, Busan, South Korea
| | - Byeng-Wha Son
- Department of Chemistry, College of Natural Sciences, Pukyong National University, Busan, South Korea
| | - Pyung-Gyun Shin
- Rural Development Administration, National Institute of Horticultural and Herbal Science, Suwon, South Korea
| | - Jae-Sue Choi
- Department of Food and Nutrition, Pukyong National University, Busan, South Korea
| | - Yong-Bae Seo
- Institute of Fisheries Science, College of Fisheries Science, Pukyong National University, Busan, South Korea
| | - Gun-Do Kim
- Department of Microbiology, College of Natural Sciences, Pukyong National University, Busan, South Korea
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19
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A potent tumoricidal co-drug 'Bet-CA'--an ester derivative of betulinic acid and dichloroacetate selectively and synergistically kills cancer cells. Sci Rep 2015; 5:7762. [PMID: 25585916 PMCID: PMC4293591 DOI: 10.1038/srep07762] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 12/12/2014] [Indexed: 12/22/2022] Open
Abstract
Selective targeting of cancer cells employing multiple combinations as co-drug holds promise for new generation therapeutics. Betulinic acid (BA), a plant secondary metabolite kills cancer cells and Dichloroacetate (DCA) is capable of reversing the Warburg phenotype by inhibiting pyruvate dehydrogenase kinase (PDK). Here, we report synthesis, characterization and tumoricidal potential of a co-drug Bet-CA, where a DCA molecule has been appended on C-3 hydroxyl group of BA to generate an ester derivative for increased solubility and subsequent cleavage by internal esterase(s) to release one unit each of BA and DCA. In vitro studies revealed pronounced synergistic cytotoxicity of Bet-CA against a broad spectrum of cancer cells and it selectively killed them when co-cultured with human fibroblasts. Bet-CA treatment increased reactive oxygen species (ROS) production, significantly altered mitochondrial membrane potential gradient (ΔΨm); followed by the release of cytochrome c (Cyt c) which prompted cells to undergo mitochondria mediated apoptosis. In vivo experimentation expectedly exhibited tumor inhibitory potential of Bet-CA and clinically achievable doses did not produce any apparent toxicity. Taken together, results suggestively raise an important corollary hypothesis stating that Bet-CA selectively and synergistically combats cancer without producing toxic manifestations and emerges to be the prospect for the new generation therapeutics.
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20
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Farooqi AA, Fayyaz S, Hou MF, Li KT, Tang JY, Chang HW. Reactive oxygen species and autophagy modulation in non-marine drugs and marine drugs. Mar Drugs 2014; 12:5408-24. [PMID: 25402829 PMCID: PMC4245538 DOI: 10.3390/md12115408] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 11/06/2014] [Accepted: 11/07/2014] [Indexed: 12/11/2022] Open
Abstract
It is becoming more understandable that an existing challenge for translational research is the development of pharmaceuticals that appropriately target reactive oxygen species (ROS)-mediated molecular networks in cancer cells. In line with this approach, there is an overwhelmingly increasing list of many non-marine drugs and marine drugs reported to be involved in inhibiting and suppressing cancer progression through ROS-mediated cell death. In this review, we describe the strategy of oxidative stress-based therapy and connect the ROS modulating effect to the regulation of apoptosis and autophagy. Finally, we focus on exploring the function and mechanism of cancer therapy by the autophagy modulators including inhibitors and inducers from non-marine drugs and marine drugs.
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Affiliation(s)
- Ammad Ahmad Farooqi
- Laboratory for Translational Oncology and Personalized Medicine, Rashid Latif Medical College, Lahore 54000, Pakistan; E-Mails: (A.A.F.); (S.F.)
| | - Sundas Fayyaz
- Laboratory for Translational Oncology and Personalized Medicine, Rashid Latif Medical College, Lahore 54000, Pakistan; E-Mails: (A.A.F.); (S.F.)
| | - Ming-Feng Hou
- Cancer Center, Kaohsiung Medical University Hospital; Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mail:
- Institute of Clinical Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 80145, Taiwan
| | - Kun-Tzu Li
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mail:
| | - Jen-Yang Tang
- Department of Radiation Oncology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 80145, Taiwan
- Department of Radiation Oncology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (J.Y.T.); (H.W.C.); Tel.: +886-7291-1101 (ext. 8105) (J.Y.T.); +886-7312-1101 (ext. 2691) (H.W.C.); Fax: +886-7213-8400 (J.Y.T.); +886-7312-5339 (H.W.C.)
| | - Hsueh-Wei Chang
- Cancer Center, Kaohsiung Medical University Hospital; Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mail:
- Department of Biomedical Science and Environmental Biology, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; E-Mail:
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Research Center of Environmental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (J.Y.T.); (H.W.C.); Tel.: +886-7291-1101 (ext. 8105) (J.Y.T.); +886-7312-1101 (ext. 2691) (H.W.C.); Fax: +886-7213-8400 (J.Y.T.); +886-7312-5339 (H.W.C.)
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21
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Chowdhury SR, Sengupta S, Biswas S, Sen R, Sinha TK, Basak RK, Adhikari B, Bhattacharyya A. Low fucose containing bacterial polysaccharide facilitate mitochondria-dependent ROS-induced apoptosis of human lung epithelial carcinoma via controlled regulation of MAPKs-mediated Nrf2/Keap1 homeostasis signaling. Mol Carcinog 2014; 54:1636-55. [DOI: 10.1002/mc.22236] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2014] [Revised: 08/19/2014] [Accepted: 09/11/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Sougata Roy Chowdhury
- Materials Science Centre; Indian Institute of Technology Kharagpur; Kharagpur WB India
- Department of Zoology; Immunology Lab; University of Calcutta; Kolkata WB India
| | - Suman Sengupta
- Department of Zoology; Immunology Lab; University of Calcutta; Kolkata WB India
| | - Subir Biswas
- Department of Zoology; Immunology Lab; University of Calcutta; Kolkata WB India
| | - Ramkrishna Sen
- Department of Biotechnology; Indian Institute of Technology Kharagpur; Kharagpur WB India
| | - Tridib Kumar Sinha
- Materials Science Centre; Indian Institute of Technology Kharagpur; Kharagpur WB India
| | - Ratan Kumar Basak
- Materials Science Centre; Indian Institute of Technology Kharagpur; Kharagpur WB India
| | - Basudam Adhikari
- Materials Science Centre; Indian Institute of Technology Kharagpur; Kharagpur WB India
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22
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Makhov P, Golovine K, Teper E, Kutikov A, Mehrazin R, Corcoran A, Tulin A, Uzzo RG, Kolenko VM. Piperlongumine promotes autophagy via inhibition of Akt/mTOR signalling and mediates cancer cell death. Br J Cancer 2014; 110:899-907. [PMID: 24434432 PMCID: PMC3929888 DOI: 10.1038/bjc.2013.810] [Citation(s) in RCA: 93] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 11/27/2013] [Accepted: 12/04/2013] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The Akt/mammalian target of rapamycin (mTOR) signalling pathway serves as a critical regulator of cellular growth, proliferation and survival. Akt aberrant activation has been implicated in carcinogenesis and anticancer therapy resistance. Piperlongumine (PL), a natural alkaloid present in the fruit of the Long pepper, is known to exhibit notable anticancer effects. Here we investigate the impact of PL on Akt/mTOR signalling. METHODS We examined Akt/mTOR signalling in cancer cells of various origins including prostate, kidney and breast after PL treatment. Furthermore, cell viability after concomitant treatment with PL and the autophagy inhibitor, Chloroquine (CQ) was assessed. We then examined the efficacy of in vivo combination treatment using a mouse xenograft tumour model. RESULTS We demonstrate for the first time that PL effectively inhibits phosphorylation of Akt target proteins in all tested cells. Furthermore, the downregulation of Akt downstream signalling resulted in decrease of mTORC1 activity and autophagy stimulation. Using the autophagy inhibitor, CQ, the level of PL-induced cellular death was significantly increased. Moreover, concomitant treatment with PL and CQ demonstrated notable antitumour effect in a xenograft mouse model. CONCLUSIONS Our data provide novel therapeutic opportunities to mediate cancer cellular death using PL. As such, PL may afford a novel paradigm for both prevention and treatment of malignancy.
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Affiliation(s)
- P Makhov
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - K Golovine
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - E Teper
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - A Kutikov
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - R Mehrazin
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - A Corcoran
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - A Tulin
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - R G Uzzo
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
| | - V M Kolenko
- Department of Surgical Oncology, Fox Chase Cancer Center of Temple University School of Medicine, Philadelphia, PA 19111, USA
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23
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Mukherjee S, Chowdhury D, Kotcherlakota R, Patra S, B V, Bhadra MP, Sreedhar B, Patra CR. Potential theranostics application of bio-synthesized silver nanoparticles (4-in-1 system). Theranostics 2014; 4:316-35. [PMID: 24505239 PMCID: PMC3915094 DOI: 10.7150/thno.7819] [Citation(s) in RCA: 286] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2013] [Accepted: 12/16/2013] [Indexed: 12/22/2022] Open
Abstract
In this report, we have designed a simple and efficient green chemistry approach for the synthesis of colloidal silver nanoparticles (b-AgNPs) that is formed by the reduction of silver nitrate (AgNO3) solution using Olax scandens leaf extract. The colloidal b-AgNPs, characterized by various physico-chemical techniques exhibit multifunctional biological activities (4-in-1 system). Firstly, bio-synthesized silver nanoparticles (b-AgNPs) shows enhanced antibacterial activity compared to chemically synthesize silver nanoparticles (c-AgNPs). Secondly, b-AgNPs show anti-cancer activities to different cancer cells (A549: human lung cancer cell lines, B16: mouse melanoma cell line & MCF7: human breast cancer cells) (anti-cancer). Thirdly, these nanoparticles are biocompatible to rat cardiomyoblast normal cell line (H9C2), human umbilical vein endothelial cells (HUVEC) and Chinese hamster ovary cells (CHO) which indicates the future application of b-AgNPs as drug delivery vehicle. Finally, the bio-synthesized AgNPs show bright red fluorescence inside the cells that could be utilized to detect the localization of drug molecules inside the cancer cells (a diagnostic approach). All results together demonstrate the multifunctional biological activities of bio-synthesized AgNPs (4-in-1 system) that could be applied as (i) anti-bacterial & (ii) anti-cancer agent, (iii) drug delivery vehicle, and (iv) imaging facilitator. To the best of our knowledge, there is not a single report of biosynthesized AgNPs that demonstrates the versatile applications (4-in-1 system) towards various biomedical applications. Additionally, a plausible mechanistic approach has been explored for the synthesis of b-AgNPs and its anti-bacterial as well as anti-cancer activity. We strongly believe that bio-synthesized AgNPs will open a new direction towards various biomedical applications in near future.
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Affiliation(s)
- Sudip Mukherjee
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Debabrata Chowdhury
- 2. Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Rajesh Kotcherlakota
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Sujata Patra
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Vinothkumar B
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Manika Pal Bhadra
- 2. Centre for Chemical Biology, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Bojja Sreedhar
- 3. Inorganic and Physical Chemistry Division, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
| | - Chitta Ranjan Patra
- 1. Biomaterials Group, CSIR-Indian Institute of Chemical Technology, Uppal Road, Tarnaka, Hyderabad - 500007, AP, India
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24
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Gayathri T, Barui AK, Prashanthi S, Patra CR, Singh SP. meso-Substituted BODIPY fluorescent probes for cellular bio-imaging and anticancer activity. RSC Adv 2014. [DOI: 10.1039/c4ra07424f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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25
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García-Caballero M, Marí-Beffa M, Cañedo L, Medina MÁ, Quesada AR. Toluquinol, a marine fungus metabolite, is a new angiosuppresor that interferes with the Akt pathway. Biochem Pharmacol 2013; 85:1727-40. [PMID: 23603293 DOI: 10.1016/j.bcp.2013.04.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Revised: 04/08/2013] [Accepted: 04/09/2013] [Indexed: 10/26/2022]
Abstract
Toluquinol, a methylhydroquinone produced by a marine fungus, was selected in the course of a blind screening for new potential inhibitors of angiogenesis. In the present study we provide the first evidence that toluquinol is a new anti-angiogenic-compound. In a variety of experimental systems, representing the sequential events of the angiogenic process, toluquinol treatment of activated endothelial cells resulted in strong inhibitory effect. Toluquinol inhibited the growth of endothelial and tumor cells in culture in the micromolar range. Our results indicate that the observed growth inhibitory effect could be due, at least in part, to an induction of apoptosis. Toluquinol induced endothelial cell death is mediated via apoptosis after a cell cycle block and caspase activation. Capillary tube formation on Matrigel and migratory, invasive and proteolytic capabilities of endothelial cells were inhibited by addition of toluquinol at subtoxic concentrations. Inhibition of the mentioned essential steps of in vitro angiogenesis agrees with the observed inhibition of the in vivo angiogenesis, substantiated by using the chick chorioallatoic membrane assay and confirmed by the murine Matrigel plug, the zebrafish embryo neovascularization and the zebrafish caudal fin regeneration assays. Data here shown altogether indicate that toluquinol has antiangiogenic effects both in vitro and in vivo that are exerted partly by suppression of the VEGF and FGF-induced Akt activation of endothelial cells. These effects are carried out at lower concentrations to those required for other inhibitors of angiogenesis, what makes toluquinol a promising drug candidate for further evaluation in the treatment of cancer and other angiogenesis-related pathologies.
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Affiliation(s)
- Melissa García-Caballero
- Department of Molecular Biology and Biochemistry, Faculty of Sciences, University of Málaga, E-29071 Málaga, Spain
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Sunassee SN, Veale CG, Shunmoogam-Gounden N, Osoniyi O, Hendricks DT, Caira MR, de la Mare JA, Edkins AL, Pinto AV, da Silva Júnior EN, Davies-Coleman MT. Cytotoxicity of lapachol, β-lapachone and related synthetic 1,4-naphthoquinones against oesophageal cancer cells. Eur J Med Chem 2013; 62:98-110. [DOI: 10.1016/j.ejmech.2012.12.048] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2012] [Revised: 11/27/2012] [Accepted: 12/30/2012] [Indexed: 12/22/2022]
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27
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Farooqi AA, Butt G, Razzaq Z. Algae extracts and methyl jasmonate anti-cancer activities in prostate cancer: choreographers of 'the dance macabre'. Cancer Cell Int 2012. [PMID: 23181808 PMCID: PMC3575221 DOI: 10.1186/1475-2867-12-50] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
There is an overwhelmingly increasing trend of analysis of naturally occurring ingredients in treatment of prostate cancer. Substantial fraction of information has been added that highlights activity at various levels and steps of deregulated cellular proliferation, metastasis and apoptosis. Among such ingredients, algae extracts and jasmonates are documented to have anti-cancer activity in vitro and in vivo and induce growth inhibition in cancer cells, while leaving the non-transformed cells intact. In this short review we outline systematically, how these ingredients predispose prostate cancer cells to undergo apoptosis.
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Affiliation(s)
- Ammad Ahmad Farooqi
- Laboratory For Translational Oncology and Personalized Medicine, Rashid Latif Medical College, 35 Km Ferozepur Road, Lahore, Pakistan.
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28
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Sunassee SN, Davies-Coleman MT. Cytotoxic and antioxidant marine prenylated quinones and hydroquinones. Nat Prod Rep 2012; 29:513-35. [DOI: 10.1039/c2np00086e] [Citation(s) in RCA: 104] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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29
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Klein R, Sunassee SN, Davies-Coleman MT. Factors influencing prenylation of an aromatic organolithium. JOURNAL OF CHEMICAL RESEARCH 2009. [DOI: 10.3184/030823409x12491261540439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An apparently routine metal–halogen exchange (MHE) reaction gave variable low yields under typical conditions. 13C and 7Li NMR studies suggested a diversity of organolithiums were formed in the MHE reaction leading to a plethora of products on subsequent electrophilic aromatic substitution with geranyl bromide. A reversal of reagent addition simplified the 7Li NMR spectrum and the product distribution, in addition to increasing the isolated yield of the desired product from a variable 5-40% to a consistent 65%.
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Affiliation(s)
- Rosalyn Klein
- Department of Chemistry, Rhodes University, Grahamstown 6140, South Africa
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30
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Blunt JW, Copp BR, Hu WP, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2009; 26:170-244. [PMID: 19177222 DOI: 10.1039/b805113p] [Citation(s) in RCA: 410] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This review covers the literature published in 2007 for marine natural products, with 948 citations(627 for the period January to December 2007) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, cnidarians,bryozoans, molluscs, tunicates, echinoderms and true mangrove plants. The emphasis is on new compounds (961 for 2007), together with the relevant biological activities, source organisms and country of origin. Biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.1 Introduction, 2 Reviews, 3 Marine microorganisms and phytoplankton, 4 Green algae, 5 Brown algae, 6 Red algae, 7 Sponges, 8 Cnidarians, 9 Bryozoans, 10 Molluscs, 11 Tunicates (ascidians),12 Echinoderms, 13 Miscellaneous, 14 Conclusion, 15 References.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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31
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van Wyk AWW, Gray CA, Whibley CE, Osoniyi O, Hendricks DT, Caira MR, Davies-Coleman MT. Bioactive metabolites from the South African marine mollusk Trimusculus costatus. JOURNAL OF NATURAL PRODUCTS 2008; 71:420-425. [PMID: 18288809 DOI: 10.1021/np070612y] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A reinvestigation of extracts of the endemic South African intertidal limpet Trimusculus costatus yielded the known labdane diterpenes 6beta,7alpha-diacetoxylabda-8,13 E-dien-15-ol ( 1) and 2alpha,6beta,7alpha-triacetoxylabda-8,13 E-dien-15-ol ( 2) and three new metabolites, 6beta,7alpha,15-triacetoxylabda-8,13 E-diene ( 3), 3alpha,11-dihydroxy-9,11-seco-cholest-4,7-dien-6,9-dione ( 4), and cholest-7-en-3,5,7-triol ( 5). Chiral derivatization and X-ray analysis were used to confirm the labdane absolute configuration of 2. Compounds 1, 2 and 4 exhibited moderate activity (3-25 microM) against the WHCO1 human esophageal cancer cell line.
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