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Silva de Freitas Cesário HP, das Chagas Lima Pinto F, Marques Canuto K, Rocha Silveira E, Veras Wilke D, Gois Ferreira E, Marques da Fonseca A, Alves de Vasconcelos M, Teixeira EH, Deusdênia Loiola Pessoa O. Further Polycyclic Quinones of Micromonospora sp. Chem Biodivers 2024; 21:e202301771. [PMID: 38628065 DOI: 10.1002/cbdv.202301771] [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: 11/08/2023] [Accepted: 03/31/2024] [Indexed: 06/01/2024]
Abstract
The crude acetone extract of a marine Micromonospora sp. strain associated with Eudistoma vannnamei was fractioned with hexane and ethyl acetate. The crude extract and both soluble fractions were assayed against several bacteria strains. The new polycyclic quinones 12-hydroxy-9-propyltetracene-6,1-dione (1), 5,12-dihydroxy-4-methoxy-9-propyltetracene-5,12-dione (2), and 4,6-dihydroxy-3-methoxycarbonyl- methyl-6a-(oxobutyl)-5,12-anthraquinone (3), along with the known 4,6-dihydroxy-3-methoxycarbonyl-methyl-6a-(oxo-3-methyl-butyl)-5,12-anthraquinone (4) and 4,6-dihydroxy-3-methoxycarbonyl-methyl-6a-(oxopentyl)-5,12-anthraquinone (5) were isolated from the hexane-soluble fraction, while from the active ethyl acetate fraction were isolated the known 4,6,11-trihydroxy-9-propyltetracene-5,12-dione (6), 4-methoxy-9-propyltetracene-6,11-dione (7), 7,8,9,10-tetrahydro-9-hydroxy-4-methoxy-9-propyltetracene-6,11-dione (8), and 10β-carbomethoxy-7,8,9,10-tetrahydro-4,6,7α,9α,11-pentahydroxy-9-propyltetracene-5,12-dione (9). The structures of the new compounds were established by interpretation of HRMS and NMR techniques. A study of molecular docking was performed with the compounds from the active ethyl acetate fraction to correlate tentatively with the antimicrobial activity. Molecular docking, RMSD, RMSF, and MM-GBSA evaluations were performed to investigate the inhibitory activity of 6-8 against the protein PDB-codex 1MWT, being considered a promising target for studying drug development responsible for inhibiting replication of Staphylococcus aureus. Penicillin G was used as the standard inhibitory. Anthracyclinones 6-8 were the best hydrolase inhibitor with affinity energy -8.1 to -7.9 kcal/mol compared to penicillin G, which presented -6.9 kcal/mol. Both 8 and 7 present potent inhibitory effects against hydrolase through molecular dynamics simulation and exhibit favorable drug-like properties, promising new hydrolase blockers to fight bacterial infections from Staphylococcus aureus.
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Affiliation(s)
| | - Francisco das Chagas Lima Pinto
- Institute of Exact and Natural Sciences, University of International Integration of Afro-Brazilian Lusofonia, 62785-000, Acarape, CE, Brazil
| | | | - Ediberto Rocha Silveira
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, CE, 60455-760, Brazil
| | - Diego Veras Wilke
- Department of Physiology and Pharmacology, Federal University of Ceará, 60165-085, Fortaleza, Ceará, Brazil
| | - Elthon Gois Ferreira
- Department of Physiology and Pharmacology, Federal University of Ceará, 60165-085, Fortaleza, Ceará, Brazil
| | - Aluísio Marques da Fonseca
- Institute of Exact and Natural Sciences, University of International Integration of Afro-Brazilian Lusofonia, 62785-000, Acarape, CE, Brazil
| | - Mayron Alves de Vasconcelos
- Integrated Laboratory of Biomolecules (LIBS), Department of Pathology and Legal Medicine, Federal University of Ceará, Fortaleza, CE, 62042-280, Brazil
- Faculty of Education of Itapipoca (FACEDI), State University of Ceará, Itapipoca, CE, 62500-000, Brazil
| | - Edson Holanda Teixeira
- Faculty of Education of Itapipoca (FACEDI), State University of Ceará, Itapipoca, CE, 62500-000, Brazil
| | - Otilia Deusdênia Loiola Pessoa
- Department of Organic and Inorganic Chemistry, Science Center, Federal University of Ceará, Fortaleza, CE, 60455-760, Brazil
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Fatty Acid Supplementation Affects Skin Wound Healing in a Rat Model. Nutrients 2022; 14:nu14112245. [PMID: 35684045 PMCID: PMC9182784 DOI: 10.3390/nu14112245] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/20/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023] Open
Abstract
Polyunsaturated fatty acids (PUFA) play an important role in reparative processes. The ratio of PUFAs n-3 to n-6 may affect wound healing. The study aimed to evaluate the effect of dietary supplementation with n-3 and n-6 PUFA in two proportions on skin wounds in laboratory rats. Adult male Wistar rats received 20% fat emulsion with a ratio of 1.4:1 (group A) or 4.3:1 (group B) for n-3:n-6 PUFAs at a daily dose of 1 mL/kg. The control group received water under the same conditions. The animals were supplemented a week before and a week after the skin excision performed on the back. The level of wound closure, various parameters of oxidative stress, and plasma fatty acids composition were evaluated. Wound tissue samples were examined by electron microscopy. The administration of fat emulsions led to significant changes in plasma polyunsaturated fatty acid composition. The increased production of reactive nitrogen species, as well as more numerous newly formed blood vessels and a greater amount of highly organized collagen fibrils in both groups A and B may indicate more intensive healing of the skin wound in rats supplemented with polyunsaturated fatty acids in high n-3:n-6 ratio.
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Abdul Jaffar Ali H, Mohammed Kaleem Arshan M, Praba L, Kaleemullah Khan B. Biological identification of Eudistoma species (Polycitoridae: Ascidiacea) from Gulf of Mannar, India through COI gene sequences. GENE REPORTS 2021. [DOI: 10.1016/j.genrep.2021.101222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Antibacterial Potential and Apoptosis Induction by Pigments from the Endophyte Burkholderia sp. WYAT7. Curr Microbiol 2020; 77:2475-2485. [PMID: 32388760 DOI: 10.1007/s00284-020-02013-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 04/24/2020] [Indexed: 10/24/2022]
Abstract
Pigment from the endophyte Burkholderia sp. WYAT7 isolated from the medicinal plant Artemisia nilagirica (Clarke) Pamp. was extracted. The antibacterial efficacy of the crude pigment Y was assessed as a source of antibiotic against both Gram-positive and Gram-negative bacterial pathogens. The pigment Y exhibited a significant level of antibacterial activity against the tested pathogens Salmonella typhi (MTCC 733), Staphylococcus aureus (MTCC 1430), Pseudomonas aeruginosa (MTCC 2453), Klebsiella pneumoniae (MTCC 432), Escherichia coli (MTCC 1610), Salmonella paratyphi (3220), Bacillus subtilis (441) and Acinetobacter baumannii (12,889). The minimum inhibitory concentration of crude pigment extract Y for most of the bacterial pathogens tested was below or equal to 0.25 µg/mL and the minimum bactericidal concentration was below or equal to 0.5 µg/mL. In the cytotoxicity evaluation, crude pigment Y exhibited less toxicity toward normal cells lines (L929). Crude pigment extract Y also showed powerful anticancer activity toward melanoma cancer cells (A375). The IC50 value obtained was 68.08 µg/mL. Acridine orange (AO) and ethidium bromide (EB) double staining of cells treated with the pigment helped in the morphological assessment of nuclear condensation, apoptotic bodies and live cells. The DNA fragmentation analysis and caspase-9 quantification in the pigment-treated A375 cells determined the apoptosis activity mediated by the crude pigment extract Y. The compounds in the crude pigment extract Y was identified by HR-LCMS analysis. Further studies on the active compounds can lead to a rise in new drugs for cancer treatment and also against rising antibacterial resistant pathogens.
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Docetaxel-decorated anticancer drug and gold nanoparticles encapsulated apatite carrier for the treatment of liver cancer. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2018; 185:73-79. [DOI: 10.1016/j.jphotobiol.2018.05.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 05/17/2018] [Accepted: 05/21/2018] [Indexed: 11/22/2022]
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Palanisamy SK, Arumugam V, Peter MD, Sundaresan U. Patterns of chemical diversity in the marine ascidian Phallusia spp.: anti-tumor activity and metabolic pathway inhibiting steroid biosynthesis. 3 Biotech 2018; 8:251. [PMID: 29755920 DOI: 10.1007/s13205-018-1273-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 05/02/2018] [Indexed: 10/16/2022] Open
Abstract
The complex nature of marine biodiversity is partially responsible for the lack of studies in Indian ascidian species, which often target a small number of novel biomolecules. We performed untargeted metabolomics using gas chromatography-mass spectrometry (GC-MS) in two invasive ascidian species to investigate the inter-specific chemical diversity of Phallusia nigra and P. arabica in search of drug-like properties and metabolic pathways. The chemical profiling of individual ascidian species was obtained using GC-MS, and the metabolites were determined by searching in NIST library and literature data. The principal component analysis of GC-MS mass spectral variables showed a clear discrimination of these two ascidian species based on the chemical composition and taxonomy. The metabolites, lipids, macrolides, and steroids contributed strongly to the discrimination of these two species. Results of this study confirmed that GC-MS-based chemical profiling could be utilized as a tool for chemotaxonomic classification of ascidian species. The extract of P. nigra showed promising anti-tumor activity against HT29 colon cancer 35 µM and MCF7-breast cancer (34.76 µM) cells compared to P. arabica. Of the more than 70 metabolites measured, 18 metabolites that mapped various pathways linked to three metabolic pathways being impacted and altered in steroid biosynthesis, primary bile acid biosynthesis, and steroid hormone biosynthesis were observed to have changed significantly (p > 0.004, FDR < 0.01). Also, higher expression of this pathway was associated with more significant cytotoxicity in breast and colon carcinoma cells.
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Sithara T, Dhanya BP, Arun KB, Sini S, Dan M, Kokkuvayil Vasu R, Nisha P. Zerumbone, a Cyclic Sesquiterpene from Zingiber zerumbet Induces Apoptosis, Cell Cycle Arrest, and Antimigratory Effects in SW480 Colorectal Cancer Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:602-612. [PMID: 29276946 DOI: 10.1021/acs.jafc.7b04472] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Zerumbone isolated from the rhizomes of Zingiber zerumbet was investigated for the mechanisms by which it exhibits antiproliferative activity in colorectal cancer cells (SW480). The results indicated that the zerumbone suppressed cell growth and enhanced cell apoptosis. Exposure to zerumbone induced generation of reactive oxygen species, reduced the cellular antioxidant status, decreased mitochondrial membrane potential, and activated caspase 3, caspase 8, and caspase 9 (p < 0.001). It was also found that there was a decrease in the expression of Bcl 2 and elevation of Bax (p < 0.001) on exposure to zerumbone. Furthermore, treatment with 50, 75, and 100 μM zerumbone resulted in cell cycle arrest at the G2/M phase with a value of 17.2 ± 0.1, 19.63 ± 0.25, and 26.66 ± 0.25, respectively, and also distorted the microfilament network and effectively inhibited cellular migration.
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Affiliation(s)
- Thomas Sithara
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - B P Dhanya
- Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - K B Arun
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Thiruvananthapuram, Kerala 695019, India
| | - Suresh Sini
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Thiruvananthapuram, Kerala 695019, India
| | - Mathew Dan
- Plant Genetic Resource Division, Jawaharlal Nehru Tropical Botanic Garden and Research Institute (JNTBGRI) , Palode, Thiruvananthapuram, Kerala 695562, India
| | - Radhakrishnan Kokkuvayil Vasu
- Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
| | - P Nisha
- Agro Processing and Technology Division, National Institute for Interdisciplinary Science and Technology (CSIR-NIIST) , Thiruvananthapuram, Kerala 695019, India
- Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110001, India
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Palanisamy SK, Trisciuoglio D, Zwergel C, Del Bufalo D, Mai A. Metabolite profiling of ascidian Styela plicata using LC-MS with multivariate statistical analysis and their antitumor activity. J Enzyme Inhib Med Chem 2017; 32:614-623. [PMID: 28234548 PMCID: PMC6010017 DOI: 10.1080/14756366.2016.1266344] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
To identify the metabolite distribution in ascidian, we have applied an integrated liquid chromatography- tandem mass spectrometry (LC-MS) metabolomics approach to explore and identify patterns in chemical diversity of invasive ascidian Styela plicata. A total of 71 metabolites were reported among these alkaloids, fatty acids and lipids are the most dominant chemical group. Multivariate statistical analysis, principal component analysis (PCA) showed a clear separation according to chemical diversity and taxonomic groups. PCA and partial least square discriminant analysis were applied to discriminate the chemical group of S. plicata crude compounds and classify the compounds with unknown biological activities. In this study, we reported for the first time that a partially purified methanol extract prepared from the ascidian S. plicata and Ascidia mentula possess antitumor activity against four tumor cell lines with different tumor histotype, such as HeLa (cervical carcinoma), HT29 (colon carcinoma), MCF-7 (breast carcinoma) and M14 (melanoma). S. plicata fraction SP-50 showed strong inhibition of cell proliferation and induced apoptosis in HeLa and HT29 cells, thus indicating S. plicata fraction SP-50 a potential lead compound for anticancer therapy. The molecular mechanism of action and chemotherapeutic potential of these ascidian unknown biomolecules need further research.
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Affiliation(s)
- Satheesh Kumar Palanisamy
- a Department of Chemical, Biological, Pharmaceutical and Environmental Science , University of Messina , Messina , Italy
| | - Daniela Trisciuoglio
- b Department of Research, Advanced Diagnostics and Technological Innovation , Regina Elena National Cancer Institute , Rome , Italy
| | - Clemens Zwergel
- c Department of Drug Chemistry and Technologies , Sapienza University , Rome , Italy
| | - Donatella Del Bufalo
- b Department of Research, Advanced Diagnostics and Technological Innovation , Regina Elena National Cancer Institute , Rome , Italy
| | - Antonello Mai
- c Department of Drug Chemistry and Technologies , Sapienza University , Rome , Italy.,d Pasteur Institute, Cenci Bolognetti Foundation, "Sapienza" University , Rome , Italy
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Palanisamy SK, Rajendran NM, Marino A. Natural Products Diversity of Marine Ascidians (Tunicates; Ascidiacea) and Successful Drugs in Clinical Development. NATURAL PRODUCTS AND BIOPROSPECTING 2017; 7:1-111. [PMID: 28097641 PMCID: PMC5315671 DOI: 10.1007/s13659-016-0115-5] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Accepted: 12/14/2016] [Indexed: 06/06/2023]
Abstract
This present study reviewed the chemical diversity of marine ascidians and their pharmacological applications, challenges and recent developments in marine drug discovery reported during 1994-2014, highlighting the structural activity of compounds produced by these specimens. Till date only 5% of living ascidian species were studied from <3000 species, this study represented from family didemnidae (32%), polyclinidae (22%), styelidae and polycitoridae (11-12%) exhibiting the highest number of promising MNPs. Close to 580 compound structures are here discussed in terms of their occurrence, structural type and reported biological activity. Anti-cancer drugs are the main area of interest in the screening of MNPs from ascidians (64%), followed by anti-malarial (6%) and remaining others. FDA approved ascidian compounds mechanism of action along with other compounds status of clinical trials (phase 1 to phase 3) are discussed here in. This review highlights recent developments in the area of natural products chemistry and biotechnological approaches are emphasized.
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Affiliation(s)
- Satheesh Kumar Palanisamy
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy.
| | - N M Rajendran
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Angela Marino
- Department of Chemical, Biological, Pharmaceutical and Environmental Science, University of Messina, 98166, Messina, Italy
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Takeara R, Basso TO, Jimenez PC, Costa-Lotufo LV, Lopes NP, Lopes JLC. Pyrimidine alkaloids from Eudistoma vannamei. REVISTA BRASILEIRA DE FARMACOGNOSIA-BRAZILIAN JOURNAL OF PHARMACOGNOSY 2015. [DOI: 10.1016/j.bjp.2015.08.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sahu R, Divakar G, Divakar K, Sharma P. In vitro Cytotoxicity of Gmelina arborea roxb (Gambhari) on HL-60 Cell Lines. ACTA ACUST UNITED AC 2015. [DOI: 10.3923/rjmp.2015.194.200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Pimenta ATÁ, Jimenez PC, Costa-Lotufo LV, Braz-Filho R, Lima MAS. New Unusual Alkaloids from the Ascidian Eudistoma vannamei. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400901212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The MeOH extract of the ascidian Eudistoma vannamei was found to contain three novel compounds, the adenine alkaloid derivatives 9-[ N-(leucyl)-isoleucyl]-adenine (1) and 8-hydroxy-8-isopentyl-7,8-dihydroadenine (2), and the phenylalanine peptide derivative N-[ N-(leucyl)-isoleucyl]phenethylamine (3). Other previously related compounds isolated from this extract include thymidine, 2′-deoxyuridine and phenylalanine. The structures of the new compounds were elucidated through the use of NMR and mass spectrometry.
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Affiliation(s)
- Antônia Torres Ávila Pimenta
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, CP 12.200, CEP 60.021-940, Fortaleza, CE, Brazil
| | - Paula Christine Jimenez
- Departamento de Farmacologia e Fisiologia, Centro de Ciências da Saúde, Universidade Federal do Ceará, CP 12.200, 60430-270 Fortaleza-CE, Brasil
| | - Letícia Veras Costa-Lotufo
- Departamento de Farmacologia e Fisiologia, Centro de Ciências da Saúde, Universidade Federal do Ceará, CP 12.200, 60430-270 Fortaleza-CE, Brasil
| | | | - Mary Anne Sousa Lima
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará, CP 12.200, CEP 60.021-940, Fortaleza, CE, Brazil
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Zhang E, Zheng L, Liu J, Bai B, Liu C. Influence of Cu content on the cell biocompatibility of Ti-Cu sintered alloys. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 46:148-57. [PMID: 25491971 DOI: 10.1016/j.msec.2014.10.021] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 09/21/2014] [Accepted: 10/08/2014] [Indexed: 10/24/2022]
Abstract
The cell toxicity and the cell function of Ti-Cu sintered alloys with different Cu contents (2, 5, 10 and 25 wt.%, respectively) have been investigated in comparison with commercial pure titanium in order to assess the influence of Cu content on the cell biocompatibility of the Ti-Cu alloys. The cytotoxicity was studied by examining the MG63 cell response by CCK8 assessment. The cell morphology was evaluated by acridine orange/ethidium bromide (AO/EB) fluorescence and observed under scanning electronic microscopy (SEM). The cell function was monitored by measuring the AKP activity. It has been shown by the AO/EB morphology results that the cell death on both cp-Ti sample and Ti-Cu samples is due to apoptosis rather than necrosis. Although more apoptotic cells were found on the Ti-2Cu and Ti-5Cu samples, no evidence of Cu content dependent manner of apoptosis has been found. SEM observation indicated very good cell adhesion and spread on the cp-Ti sample and the Ti-Cu samples with different Cu contents. CCK8 results displayed that increase in the Cu content in Ti-Cu alloys does not bring about any difference in the cell viability. In addition, AKP test results indicated that no difference in the differentiation of MG63 was found between the cp-Ti and the Ti-Cu samples and among the Ti-Cu samples. All results indicated that Ti-Cu alloys exhibit very good cell biocompatibility and the Cu content up to 25 wt.% in the Ti-Cu alloys has no influence on the cell proliferation and differentiation.
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Affiliation(s)
- Erlin Zhang
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, Northeastern University, Shenyang 110819, PR China; Jiamusi University, Jiamusi 154007, PR China.
| | | | - Jie Liu
- Key Lab. for Anisotropy and Texture of Materials, Education Ministry of China, Northeastern University, Shenyang 110819, PR China; Dept. of Prosthodontics, The Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, PR China
| | - Bing Bai
- Dept. of Prosthodontics, School of Stomatology, China Medical University, Liaoning Institute of Dental Research, Shenyang 110001, PR China
| | - Cong Liu
- Jiamusi University, Jiamusi 154007, PR China
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Cytotoxicity and apoptosis induction in human breast adenocarcinoma MCF-7 cells by (+)-cyanidan-3-ol. ACTA ACUST UNITED AC 2013; 65:1091-100. [DOI: 10.1016/j.etp.2013.04.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 03/07/2013] [Accepted: 04/24/2013] [Indexed: 11/21/2022]
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Monga J, Pandit S, Chauhan RS, Chauhan CS, Chauhan SS, Sharma M. Growth inhibition and apoptosis induction by (+)-Cyanidan-3-ol in hepatocellular carcinoma. PLoS One 2013; 8:e68710. [PMID: 23894334 PMCID: PMC3722203 DOI: 10.1371/journal.pone.0068710] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Accepted: 06/03/2013] [Indexed: 01/24/2023] Open
Abstract
The objective of this study was to evaluate the cytotoxicity of (+)-cyanidan-3-ol (CD-3) in human hepatocellular carcinoma cell line (HepG2) and chemopreventive potential against hepatocellular carcinoma (HCC) in Balb/c mice. The HepG2 cell line was treated with CD-3 at various concentrations and the proliferation of the HepG2 cells was measure by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide (MTT), sulforhodamine B (SRB) and lactate dehydrogenase (LDH) assays. Cell apoptosis was detected by Hoechst 33258 (HO), Acridine orange/ethylene dibromide (AO/EB) staining, DNA fragmentation analysis and the apoptosis rate was detected by flow cytometry. The HCC tumor model was established in mice by injecting N-nitrosodiethylamine/carbon tetrachloride (NDEA/CCl4) and the effect of CD-3 on tumor growth in-vivo was studied. The levels of liver injury markers, tumor markers, and oxidative stress were measured. The expression levels of apoptosis-related genes in in-vitro and in vivo models were determined by RT-PCR and ELISA. The CD-3 induced cell death was considered to be apoptotic by observing the typical apoptotic morphological changes under fluorescent microscopy and DNA fragmentation analysis. Annexin V/PI assay demonstrated that apoptosis increased with increase in the concentration of CD-3. The expression levels of apoptosis-related genes that belong to bcl-2 and caspase family were increased and AP-1 and NF-κB activities were significantly suppressed by CD-3. Immunohistochemistry data revealed less localization of p53, p65 and c-jun in CD-3 treated tumors as compared to localization in NDEA/CCl4 treated tumors. Taken together, our data demonstrated that CD-3 could significantly inhibit the proliferation of HepG2 cells in-vitro and suppress HCC tumor growth in-vivo by apoptosis induction.
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Affiliation(s)
- Jitender Monga
- Department of Pharmacy, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
| | - Saurabh Pandit
- Department of Biotechnology & Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
| | - Rajinder Singh Chauhan
- Department of Biotechnology & Bioinformatics, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
| | - Chetan Singh Chauhan
- Department of Pharmacy, Bhupal Noble College of Pharmacy, Udaipur, Rajasthan, India
| | | | - Manu Sharma
- Department of Pharmacy, Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
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Monga J, Chauhan CS, Sharma M. Human breast adenocarcinoma cytotoxicity and modulation of 7,12-dimethylbenz[a]anthracene-induced mammary carcinoma in Balb/c mice by Acacia catechu (L.f.) Wild heartwood. Integr Cancer Ther 2012; 12:347-62. [PMID: 23142797 DOI: 10.1177/1534735412463818] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE The chemopreventive potential of (+)-catechin-rich extract of Acacia catechu (L.f.) Willd. heartwood (AQCE) was evaluated against human breast adenocarcinoma cell line (MCF-7) and 7,12-dimethylbenz[a]anthracene (DMBA)-induced mammary carcinoma in Balb/c mice. METHODS Cell cytotoxicity was investigated using different colorimetric assays. Apoptosis was observed using diphenylamine assay and fluorescent microscopy. AQCE was further evaluated for antitumor activity against DMBA-induced mammary carcinoma. The levels of tumor markers and oxidative stress were measured. Furthermore, level of transcription factors was measured by enzyme-linked immunosorbent assay. RESULTS The results showed that administration of AQCE showed a dose-dependent growth inhibition response and DNA fragmentation in MCF-7 cells. Tumor multiplicity was significantly decreased to 42.91% with AQCE when compared with DMBA-treated animals. The levels of tumor markers such as total sialic acid and lipid-associated sialic acid were substantially increased after DMBA treatment. However, AQCE treatment restored tumor markers level. AQCE also significantly reduced elevated levels of nitrite and malondialdehyde in DMBA-treated animals. Additionally, AQCE also increased the activities of antioxidant enzymes, viz., catalase, superoxide dismutase, total thiol, reduced glutathione, protein thiol, glutathione peroxidase, glutathione reductase, and glutathione-S-transferase in the mammary tissue and liver mitochondria of DMBA-administered animals. Significant increase in the protein levels of p53, c-jun, and p65 were observed in DMBA-treated mice, whereas less expression was observed in AQCE-treated animals. Eventually, AQCE also significantly improved body weight and maintained the mammary tissue architecture in normal range. CONCLUSIONS The present data strongly suggest that anticancer potentiality of (+)-catechin-rich AQCE may be attributable to its ability to positively modulate tumor markers as well as the antioxidant system that could decompose the peroxides and, thereby, offer a protection against lipid peroxidation and linked to the expression of transcription factors during DMBA-induced mammary carcinoma.
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Affiliation(s)
- Jitender Monga
- Jaypee University of Information Technology, Waknaghat, Himachal Pradesh, India
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Montenegro TGC, Rodrigues FAR, Jimenez PC, Angelim AL, Melo VMM, Rodrigues Filho E, de Oliveira MDCF, Costa-Lotufo LV. Cytotoxic Activity of Fungal Strains Isolated from the AscidianEudistoma vannamei. Chem Biodivers 2012; 9:2203-9. [DOI: 10.1002/cbdv.201100366] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Jimenez PC, Wilke DV, Ferreira EG, Takeara R, de Moraes MO, da Silveira ER, da Cruz Lotufo TM, Lopes NP, Costa-Lotufo LV. Structure elucidation and anticancer activity of 7-oxostaurosporine derivatives from the Brazilian endemic tunicate Eudistoma vannamei. Mar Drugs 2012; 10:1092-1102. [PMID: 22822359 PMCID: PMC3397465 DOI: 10.3390/md10051092] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2012] [Revised: 05/11/2012] [Accepted: 05/11/2012] [Indexed: 11/16/2022] Open
Abstract
The present study reports the identification of two new staurosporine derivatives, 2-hydroxy-7-oxostaurosporine (1) and 3-hydroxy-7-oxostaurosporine (2), obtained from mid-polar fractions of an aqueous methanol extract of the tunicate Eudistoma vannamei, endemic to the northeast coast of Brazil. The mixture of 1 and 2 displayed IC50 values in the nM range and was up to 14 times more cytotoxic than staurosporine across a panel of tumor cell lines, as evaluated using the MTT assay.
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Affiliation(s)
- Paula Christine Jimenez
- Institute of Marine Sciences, LABOMAR, Federal University of Ceará, Fortaleza, CE 60165-081, Brazil; (P.C.J.); (E.G.F.); (T.M.C.L.)
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE 60430-270, Brazil; (D.V.W.); (M.O.M.)
| | - Diego Veras Wilke
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE 60430-270, Brazil; (D.V.W.); (M.O.M.)
| | - Elthon Gois Ferreira
- Institute of Marine Sciences, LABOMAR, Federal University of Ceará, Fortaleza, CE 60165-081, Brazil; (P.C.J.); (E.G.F.); (T.M.C.L.)
| | - Renata Takeara
- Department of Chemistry and Physics, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14040-903, Brazil; (R.T.); (N.P.L.)
| | - Manoel Odorico de Moraes
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE 60430-270, Brazil; (D.V.W.); (M.O.M.)
| | - Edilberto Rocha da Silveira
- Department of Organic and Inorganic Chemistry, Federal University of Ceará, Fortaleza, CE 60021-970, Brazil;
| | - Tito Monteiro da Cruz Lotufo
- Institute of Marine Sciences, LABOMAR, Federal University of Ceará, Fortaleza, CE 60165-081, Brazil; (P.C.J.); (E.G.F.); (T.M.C.L.)
| | - Norberto Peporine Lopes
- Department of Chemistry and Physics, Faculty of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14040-903, Brazil; (R.T.); (N.P.L.)
| | - Leticia Veras Costa-Lotufo
- Institute of Marine Sciences, LABOMAR, Federal University of Ceará, Fortaleza, CE 60165-081, Brazil; (P.C.J.); (E.G.F.); (T.M.C.L.)
- Department of Physiology and Pharmacology, School of Medicine, Federal University of Ceará, Fortaleza, CE 60430-270, Brazil; (D.V.W.); (M.O.M.)
- Author to whom correspondence should be addressed; ; Tel.: +55-85-3366-7029; Fax: +55-85-3366-8333
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Sousa TDS, Jimenez PC, Ferreira EG, Silveira ER, Braz-Filho R, Pessoa ODL, Costa-Lotufo LV. Anthracyclinones from Micromonospora sp. JOURNAL OF NATURAL PRODUCTS 2012; 75:489-493. [PMID: 22250891 DOI: 10.1021/np200795p] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Four new anthracyclinones, 4,6,11-trihydroxy-9-propyltetracene-5,12-dione (1), 1-methoxy-9-propyltetracene-6,11-dione (2), 7,8,9,10-tetrahydro-9-hydroxy-1-methoxy-9-propyltetracene-6,11-dione (3), and 10β-carbomethoxy-7,8,9,10-tetrahydro-4,6,7α,9α,11-pentahydroxy-9-propyltetracene-5,12-dione (4), were isolated from a strain of Micromonospora sp. associated with the tunicate Eudistoma vannamei. All structures were established by 1D and 2D NMR (COSY, HSQC, HMBC, NOESY) and HRESIMS experiments. Compounds 1 and 4 were cytotoxic against the HCT-8 human colon adenocarcinoma cell line, with IC(50) values of 12.7 and 6.2 μM, respectively, while compounds 2 and 3 were inactive.
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Affiliation(s)
- Thiciana da S Sousa
- Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, Fortaleza, CE, 60.021-970, Brazil
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Cooper EL, Yao D. Diving for drugs: tunicate anticancer compounds. Drug Discov Today 2012; 17:636-48. [PMID: 22406646 DOI: 10.1016/j.drudis.2012.02.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 12/21/2011] [Accepted: 02/09/2012] [Indexed: 01/11/2023]
Abstract
The marine biosphere boasts tremendous biodiversity replete with structurally unique, active and selective secondary metabolites. Bioprospecting for antitumor compounds has been rewarding, and tunicates have been especially successful in yielding prospective cancer therapies. These compounds are now subjected to clinical trials in Europe and the USA. With the ongoing search for potent and specific anticancer drugs, in this article we discuss the unique perspectives, compounds and opportunities afforded by this rich source of potential pharmaceuticals. We discuss marine-derived antitumor drugs, their structures, and their various types and levels of antitumor activities in bench and bedside efforts.
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Affiliation(s)
- Edwin L Cooper
- David Geffen School of Medicine at UCLA, University of California, Los Angeles, 90095-1763, USA.
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Ramasamy S, Abdul Wahab N, Zainal Abidin N, Manickam S. Effect of extracts from Phyllanthus watsonii Airy Shaw on cell apoptosis in cultured human breast cancer MCF-7 cells. ACTA ACUST UNITED AC 2012; 65:341-9. [PMID: 22217449 DOI: 10.1016/j.etp.2011.11.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 11/06/2011] [Accepted: 11/29/2011] [Indexed: 11/16/2022]
Abstract
Species of Phyllanthus have traditionally been used for hundreds of years for treating many ailments including diabetes, anemia, bronchitis and hepatitis. The present study aims to investigate the cytotoxic and apoptotic effects of methanol (PWM), hexane (PWH) and ethyl acetate (PWE) extracts from the leaves of the endemic plant Phyllanthus watsonii Airy Shaw (Phyllanthaceae) on MCF-7 human breast cancer cells. We observed that the PWM, PWH and PWE extracts were cytotoxic and selectively inhibited the growth and proliferation of MCF-7 cells compared to untreated control in a dose dependent manner with an IC(50) of 12.7 ± 4.65, 7.9 ± 0.60 and 7.7 ± 0.29 μg/ml, respectively. However, the extracts were not toxic at these concentrations to normal human lung fibroblast MRC-5 cells. Cell death induced by PWM, PWH and PWE extracts were mainly due to apoptosis which was characterized by apoptotic morphological changes and a nuclear DNA fragmentation. Caspase-3 activation following P. watsonii extracts treatment was also evident for apoptotic cell death which was preceded by an S phase cell cycle perturbation. The results suggested that the cytotoxic activity of P. watsonii extracts was related to an early event of cell cycle perturbation and a later event of apoptosis. Hence, P. watsonii displays potential to be further exploited in the discovery and development of new anticancer agents.
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Affiliation(s)
- Sujatha Ramasamy
- Institute of Biological Sciences, Faculty of Science, University Malaya, 50603 Kuala Lumpur, Malaysia.
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Ferreira EG, Wilke DV, Jimenez PC, de Oliveira JR, Pessoa ODL, Silveira ER, Viana FA, Pessoa C, de Moraes MO, Hajdu E, Costa-Lotufo LV. Guanidine Alkaloids from Monanchora arbuscula: Chemistry and Antitumor Potential. Chem Biodivers 2011. [DOI: 10.1002/cbdv.201000161] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Pro-apoptotic activity of lipidic α-amino acids isolated from Protopalythoa variabilis. Bioorg Med Chem 2010; 18:7997-8004. [PMID: 20943402 DOI: 10.1016/j.bmc.2010.09.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2010] [Revised: 09/06/2010] [Accepted: 09/13/2010] [Indexed: 11/20/2022]
Abstract
Lipidic α-amino acids (LAAs) have been described as non-natural amino acids with long saturated or unsaturated aliphatic chains. In the continuing prospect to discover anticancer agents from marine sources, we have obtained a mixture of two cytotoxic LAAs (1a and 1b) from the zoanthid Protopalythoa variabilis. The anti-proliferative potential of 14 synthetic LAAs and 1a/1b were evaluated on four tumor cell lines (HCT-8, SF-295, MDA-MB-435, and HL-60). Five of the synthetic LAAs showed high percentage of tumor cell inhibition, while 1a/1b completely inhibited tumor cell growth. Additionally, apoptotic effects of 1a/1b were studied on HL-60 cell line. 1a/1b-treated cells showed apoptosis morphology, loss of mitochondrial potential, and DNA fragmentation.
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Dagorn F, Dumay J, Wielgosz-Collin G, Rabesaotra V, Viau M, Monniot C, Biard JF, Barnathan G. Phospholipid Distribution and Phospholipid Fatty Acids of the Tropical Tunicates Eudistoma sp. and Leptoclinides uniorbis. Lipids 2010; 45:253-61. [DOI: 10.1007/s11745-010-3389-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Accepted: 01/19/2010] [Indexed: 01/07/2023]
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Hermes-Lima M, Polcheira C, Trigueiro M, Beleboni RO. Perceptions of Latin American scientists about science and post-graduate education: Introduction to the 5th issue of CBP-Latin America. Comp Biochem Physiol A Mol Integr Physiol 2008; 151:263-271. [PMID: 18721892 DOI: 10.1016/j.cbpa.2008.08.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Accepted: 07/16/2008] [Indexed: 10/21/2022]
Abstract
Although science and engineering (S&E) publications and doctoral degree awards in Latin America had experienced an impressive growth in the past decades, a qualitative evaluation of this increased output must be performed. Previous studies have indicated that growth in visibility of Latin American science - determined by ratio of citations per paper - has not kept pace with the increase in number of publications. In the present editorial, we analyzed - by means of a 12-item questionnaire - the individual perceptions of forty senior researchers involved in CBP-Latin America (29 Brazilians and 11 non-Brazilians) plus a special group composed by six extraordinary Latin American scientists (the "masters"). The questionnaire - using 6-point Likert-like scale for quantification of perception - focused on issues surrounding doctoral educational system as well as the governmental educational policies and publication pressure from funding agencies. In general, the most striking result was the perception (by 82% of respondents) of lack of job opportunities for people holding a PhD diploma in the field of comparative biochemistry and physiology. Other major trends include (i) lack of satisfaction with governmental policies for science and post-graduate education due to policies promoting mass production for papers and PhD diplomas (65-77% of respondents felt that way) (ii) that current PhD students are doing an adequate job, but have not improved in quality as compared to those from 10 years ago (the same was observed for PhD thesis in terms of present versus past), and (iii) that research infrastructure and the curricula of post-graduate courses do not constitute a problem, but (iv) recent-PhDs are not as fit as they should be in paper-writing skills, especially as perceived by Brazilian respondents. The general perceptions were very similar among Brazilians, non-Brazilians and "masters". The use of a larger study-population, with scientists of more diverse fields is the next logical step to best evaluate the level of satisfaction about science and post-graduate policies in the continent. Finally, this fifth and last special issue of CBP-Latin America celebrates the contribution of 20 new manuscripts, which adds up to 118 published studies highlighting the depth, breadth and enthusiasm of Latin American comparative biochemistry and physiology - enjoy.
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Affiliation(s)
- Marcelo Hermes-Lima
- Oxyradical Research Group, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, 70910-900, Brazil.
| | - Cássia Polcheira
- Oxyradical Research Group, Departamento de Biologia Celular, Universidade de Brasília, Brasília, DF, 70910-900, Brazil; Escola Superior de Ciências da Saúde, FEPECS, Brasília, DF 70710-907, Brazil
| | | | - Rene Oliveira Beleboni
- Unidade de Biotecnologia, Universidade de Ribeirão Preto, Ribeirão Preto, SP, 14096-900, Brazil
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