1
|
Pimarane Diterpenoids from Aerial Parts of Lycopus lucidus and Their Antimicrobial Activity. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:5178880. [PMID: 35154345 PMCID: PMC8837446 DOI: 10.1155/2022/5178880] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Accepted: 01/18/2022] [Indexed: 12/04/2022]
Abstract
The ethyl acetate fraction obtained from aerial parts of L. lucidus was subjected for isolation of new bioactive compounds, which enabled isolation of five new pimarane-type diterpenoids, namely, 3β, 8β, 12β, 18-tetrahydroxy pimar-15-ene (10), 7α, 8β, 12β, 18-tetrahydroxy pimar-15-ene (11), 3β, 8β, 11β, 12α, 18-pentahydroxy pimar-15-ene (12), 12β acetoxy, 8β, 3β, 18-trihydroxy pimar-15-ene (13), and 3β acetoxy, 8β, 12β, 18-trihydroxy pimar-15-ene (14), along with nine known compounds. The structures were elucidated by spectroscopic analysis and comparison with literature data. The isolated new pimarane diterpenoids were examined for antimicrobial activity against Gram-negative and Gram-positive bacteria strains. Among them, the compound 3β, 8β, 12β, 18-tetrahydroxy pimar-15-ene (10) was most effective, exhibiting minimum inhibitory concentration (MIC) values of 15.62 µg/mL against Staphylococcus epidermidis, 31.25 µg/mL against Staphylococcus aureus, 62.5 µg/mL against Pseudomonas aeruginosa, and 125 µg/mL against Escherichia coli.
Collapse
|
2
|
Ibrahim SRM, Altyar AE, Sindi IA, El-Agamy DS, Abdallah HM, Mohamed SGA, Mohamed GA. Kirenol: A promising bioactive metabolite from siegesbeckia species: A detailed review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 281:114552. [PMID: 34438028 DOI: 10.1016/j.jep.2021.114552] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 08/06/2021] [Accepted: 08/20/2021] [Indexed: 06/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Kirenol (Kr) is an ent-pimarane type diterpenoid that has been reported from Siegesbeckiaorientalis, S. pubescens, and S. glabrescens (family Asteraceae). These plants have been used traditionally for treating various ailments such as hypertension, neurasthenia, rheumatoid arthritis, asthma, snakebites, allergic disorders, paralysis, soreness, cutaneous disorders, rubella, menstrual disorders, numbness of limbs, dizziness, headache, and malaria. Importantly, in recent years, Kr has received great attention due to its diversified pharmacological activities. AIM OF THE STUDY The current work aims to give an overview on the reported pharmacological activities of Kr. Furthermore, the findings regarding its methods for extraction, quantitative analysis, purification, pharmacokinetics, pharmaceutical and food preparations, biosynthesis, identification, semisynthetic analogues, and toxicity are highlighted to provide a reference and perspective for its further investigation. METHODS Electronic databases including ScienceDirect, Web of Knowledge, SCOPUS, Wiley Online Library, Taylor & Francis, PubMed, Springer, JACS, and Google Scholar were searched up to the beginning of 2021 to identify the reported studies. RESULTS A total of 93 articles have been reviewed. The reported data suggested that Kr possessed various bioactivities including cytotoxic, apoptotic, anticancer, anti-inflammatory, cardio-protective, anti-photo-aging, anti-adipogenic, antimicrobial, muscle function improvement, fracture and wound healing, and anti-arthritic. In addition, studies revealed that the antioxidative and anti-inflammatory activities of Kr may mediate many of its therapeutic potentials as confirmed by several in-vitro and in-vivo studies. CONCLUSION This review provides an updated summary of the recent studies on Kr, including methods for extraction, quantitative analysis, purification, pharmacokinetics, pharmaceutical and food preparations, biosynthesis, and identification, as well as semisynthetic analogues, pharmacological activities, and toxicity. Thus, this work can provide useful considerations for planning and design future research on Kr.
Collapse
Affiliation(s)
- Sabrin R M Ibrahim
- Batterjee Medical College, Preparatory Year Program, Jeddah, 21442, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Assiut University, Assiut, 71526, Egypt.
| | - Ahmed E Altyar
- Department of Pharmacy Practice, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Ikhlas A Sindi
- Department of Biology, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
| | - Dina S El-Agamy
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Al-Madinah, Al-Munawwarah, 30078, Saudi Arabia; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt.
| | - Hossam M Abdallah
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Cairo University, Cairo, 11562, Egypt.
| | - Shaimaa G A Mohamed
- Faculty of Dentistry, British University, El Sherouk City, Suez Desert Road, Cairo, 11837, Egypt.
| | - Gamal A Mohamed
- Department of Natural Products and Alternative Medicine, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia; Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt.
| |
Collapse
|
3
|
Kentsop RAD, Iobbi V, Donadio G, Ruffoni B, De Tommasi N, Bisio A. Abietane Diterpenoids from the Hairy Roots of Salvia corrugata. Molecules 2021; 26:5144. [PMID: 34500582 PMCID: PMC8434070 DOI: 10.3390/molecules26175144] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022] Open
Abstract
Salvia corrugata Vahl. is an interesting source of abietane and abeo-abietane compounds that showed antibacterial, antitumor, and cytotoxic activities. The aim of the study was to obtain transformed roots of S. corrugata and to evaluate the production of terpenoids in comparison with in vivo root production. Hairy roots were initiated from leaf explants by infection with ATCC 15834 Agrobacterium rhizogenes onto hormone-free Murashige and Skoog (MS) solid medium. Transformation was confirmed by polymerase chain reaction analysis of rolC and virC1 genes. The biomass production was obtained in hormone-free liquid MS medium using Temporary Immersion System bioreactor RITA®. The chromatographic separation of the methanolic extract of the untransformed roots afforded horminone, ferruginol, 7-O-acetylhorminone and 7-O-methylhorminone. Agastol and ferruginol were isolated and quantified from the hairy roots. The amount of these metabolites indicated that the hairy roots of S. corrugata can be considered a source of these compounds.
Collapse
Affiliation(s)
- Roméo Arago Dougué Kentsop
- Dipartimento di Farmacia, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy; (R.A.D.K.); (V.I.)
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura—CREA Centro di Ricerca Orticoltura e Florovivaismo, Corso degli Inglesi, 508, 18038 Sanremo, Italy;
| | - Valeria Iobbi
- Dipartimento di Farmacia, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy; (R.A.D.K.); (V.I.)
| | - Giuliana Donadio
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy;
| | - Barbara Ruffoni
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura—CREA Centro di Ricerca Orticoltura e Florovivaismo, Corso degli Inglesi, 508, 18038 Sanremo, Italy;
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II 132, 84084 Salerno, Italy;
| | - Angela Bisio
- Dipartimento di Farmacia, Università di Genova, Viale Cembrano 4, 16148 Genova, Italy; (R.A.D.K.); (V.I.)
| |
Collapse
|
4
|
Oligandrin, a New Ent-Pimarane Type Diterpenoid and Other Bioactive Constituents from the Leaves of Croton oligandrus†. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03291-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
5
|
Wein LA, Wurst K, Angyal P, Weisheit L, Magauer T. Synthesis of (-)-Mitrephorone A via a Bioinspired Late Stage C-H Oxidation of (-)-Mitrephorone B. J Am Chem Soc 2019; 141:19589-19593. [PMID: 31770485 DOI: 10.1021/jacs.9b11646] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We present a bioinspired late-stage C-H oxidation of the ent-trachylobane natural product mitrephorone B to mitrephorone A. The realization of this unprecedented transformation was accomplished by either an iron-catalyzed or electrochemical oxidation and enabled access to the densely substituted oxetane in one step. Formation of mitrephorone C, which is lacking the central oxetane unit but features a keto-function at C2, was not formed under these conditions.
Collapse
Affiliation(s)
- Lukas Anton Wein
- Institute of Organic Chemistry and Center for Molecular Biosciences , Leopold-Franzens-University Innsbruck , Innrain 80-82 , 6020 Innsbruck , Austria
| | - Klaus Wurst
- Institute of General, Inorganic and Theoretical Chemistry , Leopold-Franzens-University Innsbruck , Innrain 80-82 , 6020 Innsbruck , Austria
| | - Peter Angyal
- Institute of Organic Chemistry , Research Centre for Natural Sciences , Magyar tudósok körútja 2 , 1117 Budapest , Hungary
| | - Lara Weisheit
- Institute of Organic Chemistry and Center for Molecular Biosciences , Leopold-Franzens-University Innsbruck , Innrain 80-82 , 6020 Innsbruck , Austria
| | - Thomas Magauer
- Institute of Organic Chemistry and Center for Molecular Biosciences , Leopold-Franzens-University Innsbruck , Innrain 80-82 , 6020 Innsbruck , Austria
| |
Collapse
|
6
|
Riaz A, Saleem B, Hussain G, Sarfraz I, Nageen B, Zara R, Manzoor M, Rasul A. Eriocalyxin B Biological Activity: A Review on Its Mechanism of Action. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19868598] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Natural products, a rich source of bioactive chemical compounds, have served humans as a safer drug of choice since times. Eriocalyxin B, an ent-Kaurene diterpenoid, has been extracted from a traditional Chinese herb Isodon eriocalyx. Experimental data support the anticancer and anti-inflammatory activities of EriB. This natural entity exhibits anticancer effects against breast, pancreatic, leukemia, ovarian, lung, bladder, and colorectal cancer. EriB has capability to inhibit the proliferation of cancer cells by prompting apoptosis, arresting cell cycle, and modulating cell signaling pathways. The regulation of signaling pathways in cancerous cells by EriB involves the modulation of various apoptosis-related factors (Bak, Bax, caspases, XIAP, survivin, and Beclin-1), transcriptional factors (nuclear factor kappa B [NF-κB], STAT3, Janus-activated kinase 2, Notch, AP-1, and lκBα), enzymes (cyclooxygenase 2, matrix metalloproteinase 2 [MMP-2], MMP-9, and poly (ADP-ribose) polymerase), cytokines, and protein kinases (mitogen-activated protein kinase and ERK1/2). This review proposes that EriB supplies a novel opportunity for the cure of cancer but supplementary investigations along with preclinical trials are obligatory to effectively figure out its biological and pharmacological applications.
Collapse
Affiliation(s)
- Ammara Riaz
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Bisma Saleem
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Ghulam Hussain
- Department of Physiology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Iqra Sarfraz
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Bushra Nageen
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Rabia Zara
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Maleeha Manzoor
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| | - Azhar Rasul
- Department of Zoology, Faculty of Life Sciences, Government College University Faisalabad, Pakistan
| |
Collapse
|
7
|
Phytochemistry, Chemotaxonomy, Ethnopharmacology, and Nutraceutics of Lamiaceae. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2019. [DOI: 10.1016/b978-0-444-64185-4.00004-6] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
8
|
Reveglia P, Cimmino A, Masi M, Nocera P, Berova N, Ellestad G, Evidente A. Pimarane diterpenes: Natural source, stereochemical configuration, and biological activity. Chirality 2018; 30:1115-1134. [DOI: 10.1002/chir.23009] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/16/2018] [Accepted: 07/25/2018] [Indexed: 01/18/2023]
Affiliation(s)
- Pierluigi Reveglia
- Dipartimento di Scienze Chimiche Università di Napoli Federico II; Complesso Universitario Monte S. Angelo; Naples Italy
| | - Alessio Cimmino
- Dipartimento di Scienze Chimiche Università di Napoli Federico II; Complesso Universitario Monte S. Angelo; Naples Italy
| | - Marco Masi
- Dipartimento di Scienze Chimiche Università di Napoli Federico II; Complesso Universitario Monte S. Angelo; Naples Italy
| | - Paola Nocera
- Dipartimento di Scienze Chimiche Università di Napoli Federico II; Complesso Universitario Monte S. Angelo; Naples Italy
| | - Nina Berova
- Department of Chemistry; Columbia University; New York NY USA
| | - George Ellestad
- Department of Chemistry; Columbia University; New York NY USA
| | - Antonio Evidente
- Dipartimento di Scienze Chimiche Università di Napoli Federico II; Complesso Universitario Monte S. Angelo; Naples Italy
| |
Collapse
|
9
|
Mustufa MA, Ozen C, Hashmi IA, Aslam A, Baig JA, Yildiz G, Muhammad S, Solangi IB, Ul Hasan Naqvi N, Ozturk M, Ali FI. Synthesis and bio-molecular study of (+)-N-Acetyl-α-amino acid dehydroabietylamine derivative for the selective therapy of hepatocellular carcinoma. BMC Cancer 2016; 16:883. [PMID: 27842576 PMCID: PMC5109647 DOI: 10.1186/s12885-016-2942-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 11/02/2016] [Indexed: 12/13/2022] Open
Abstract
Background The purpose of present work is to synthesize novel (+)-Dehydroabietylamine derivatives (DAAD) using N-acetyl-α-amino acid conjugates and determine its cytotoxic effects on hepatocellular carcinoma cells. Methods An analytical study was conducted to explore cytotoxic activity of DAAD on hepatocellular carcinoma cell lines. The cytotoxicity effect was recorded using sulforhodamine B technique. Cell cycle analysis was performed using Propidium Iodide (PI) staining. Based on cell morphology, anti growth activity and microarray findings of DAAD2 treatment, Comet assay, Annexin V/PI staining, Immunoperoxidase assay and western blots were performed accoringly. Results Hep3B cells were found to be the most sensitive with IC50 of 2.00 ± 0.4 μM against (+)-N-(N-Acetyl-L-Cysteine)-dehydroabietylamine as DAAD2. In compliance to time dependent morphological changes of low cellular confluence, detachment and rounding of DAAD2 treated cells; noticeable changes in G2/M phase were recorded may be leading to cell cycle cessation. Up-regulation (5folds) of TUBA1A gene in Hep3B cells was determined in microarray experiments. Apoptotic mode of cell death was evaluated using standardized staining procedures including comet assay and annexin V/PI staining, Immuno-peroxidase assay. Using western blotting technique, caspase dependant apoptotic mode of cell death was recorded against Hep3B cell line. Conclusion It is concluded that a novel DAAD2 with IC50 values less than 8 μM can induce massive cell attenuation following caspase dependent apoptotic cell death in Hep3B cells. Moreover, the corelation study indicated that DAAD2 may have vital influence on cell prolifration properties. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2942-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Muhammad Ayaz Mustufa
- 5th Floor, PHRC Specialized Research Centre on Child Health, National Institute of Child Health, Karachi, 75500, Pakistan. .,Baqai Institute of Pharmaceutical Sciences (BIPS), Baqai Medical University, Karachi, 74600, Pakistan. .,Department of Molecular, Biology and Genetics, BilGen Genetics and Biotechnology Center, Bilkent University, Ankara, 06800, Turkey.
| | - Cigdem Ozen
- Izmir International Biomedicine and Genome Institute, iBG-izmir, Dokuz Eylül University, 35340, Balcova, Izmir, Turkey
| | - Imran Ali Hashmi
- Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan
| | - Afshan Aslam
- Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan
| | - Jameel Ahmed Baig
- National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Gokhan Yildiz
- Department of Medical Biology, Erzincan University Faculty of Medicine, Erzincan, 24100, Turkey
| | - Shoaib Muhammad
- Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan
| | - Imam Bakhsh Solangi
- Dr. M. A. Kazi Institute of Chemistry, University of Sindh, Jamshoro, 76080, Pakistan
| | - Naim Ul Hasan Naqvi
- Baqai Institute of Pharmaceutical Sciences (BIPS), Baqai Medical University, Karachi, 74600, Pakistan
| | - Mehmet Ozturk
- Izmir International Biomedicine and Genome Institute, iBG-izmir, Dokuz Eylül University, 35340, Balcova, Izmir, Turkey
| | - Firdous Imran Ali
- Department of Chemistry, University of Karachi, Karachi, 75270, Pakistan.
| |
Collapse
|
10
|
Wang L, Ma YT, Sun QY, Li XN, Yan Y, Yang J, Yang FM, Liu FY, Zang Z, Wu XH, Huang SX, Zhao Y. Structurally diversified diterpenoids from Euphorbia dracunculoides. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.06.078] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
11
|
Grishko VV, Nogovitsina YM, Ivshina IB. Bacterial transformation of terpenoids. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n04abeh004396] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
12
|
Wang GC, Zhang H, Liu HB, Yue JM. Laevinoids A and B: Two Diterpenoids with an Unprecedented Backbone from Croton laevigatus. Org Lett 2013; 15:4880-3. [DOI: 10.1021/ol402318m] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Guo-Cai Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China
| | - Hua Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China
| | - Hong-Bing Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China
| | - Jian-Min Yue
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, P. R. China
| |
Collapse
|
13
|
Rijo P, Duarte A, Francisco AP, Semedo-Lemsaddek T, Simões MF. In vitro
Antimicrobial Activity of Royleanone Derivatives Against Gram-Positive Bacterial Pathogens. Phytother Res 2013; 28:76-81. [DOI: 10.1002/ptr.4961] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2012] [Revised: 02/01/2013] [Accepted: 02/04/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Patrícia Rijo
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
- CBios - Research Center for Health Sciences & Technologies (Lab. Pharmacology and Therapeutics); Universidade Lusófona; Campo Grande 376 1749-024 Lisboa Portugal
| | - Aida Duarte
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Ana Paula Francisco
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| | - Teresa Semedo-Lemsaddek
- Faculdade de Medicina Veterinária, Centro de Investigação Interdisciplinar em Sanidade Animal; Universidade Técnica de Lisboa; Av. da Universidade Técnica 1300-477 Lisboa Portugal
| | - Maria Fátima Simões
- Faculdade de Farmácia da Universidade de Lisboa; Research Institute of Medicines and Pharmaceutical Sciences - iMed.UL; Av. Prof. Gama Pinto 1649-003 Lisboa Portugal
| |
Collapse
|
14
|
Rafael JA, Arakawa NS, Ambrosio SR, Costa FBD, Said S. Hyphal Morphology and Elongation Alterations in <i>Aspergillus nidulans</i> Provoked by the Diterpene Kaurenoic Acid. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/aim.2013.35059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
15
|
Gan C, Fan L, Cui J, Huang Y, Jiao Y, Wei W. Synthesis and in vitro antiproliferative evaluation of some ring B abeo-sterols. Steroids 2012; 77:1061-8. [PMID: 22683671 DOI: 10.1016/j.steroids.2012.05.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 05/18/2012] [Accepted: 05/24/2012] [Indexed: 11/20/2022]
Abstract
Using cholesterol, β-sitosterol, dehydroisoandrosterone and pregnenolone as starting materials, a series of 5(6→7)abeo-sterols with different substituted groups and various side chains were synthesized and the antiproliferative activity of these compounds against HeLa, SMMC 7404 and MGC 7901 cells was investigated. The results revealed that the presence of a cholesterol-type side chain was very important for their cytotoxicity, and in particular a thiosemicarbazone at the C-6 position significantly enhanced the antiproliferative activity of these compounds. Although the elimination of 5-hydroxyl has no an obvious effect on their cytotoxic function, removal of the hydroxyl at the C-3 position decreased markedly the antiproliferative activity of the compounds. Some compounds have similar cytotoxic capability as cisplatin does.
Collapse
Affiliation(s)
- Chunfang Gan
- College of Chemistry and Life Sciences, Guangxi Teachers Education University, Nanning 530001, China
| | | | | | | | | | | |
Collapse
|
16
|
Abstract
A complete pathway (structures and energies of intermediates and transition state structures connecting them) from geranylgeranyl diphosphate to taxadiene, obtained using quantum chemical calculations, is described. This pathway is fully consistent with previous labeling experiments, despite differing in several subtle ways (in terms of conformations of certain carbocation intermediates and in the concertedness and synchronicity of certain bond-forming events) from previous mechanistic proposals. Also, on the basis of the theoretical results, it is proposed that the 2-fluoro-geranylgeranyl diphosphate substrate analogue in the recently reported X-ray crystal structure of taxadiene synthase is bound in a nonproductive orientation.
Collapse
Affiliation(s)
- Young J Hong
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | | |
Collapse
|
17
|
First Example of Diterpenoids from 14,15-Cyclopimarane in the Roots of Linum usitatissimum. Helv Chim Acta 2009. [DOI: 10.1002/hlca.200900104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
18
|
Chen J, Sun Z, Zhang Y, Zeng X, Qing C, Liu J, Li L, Zhang H. Synthesis of gibberellin derivatives with anti-tumor bioactivities. Bioorg Med Chem Lett 2009; 19:5496-9. [DOI: 10.1016/j.bmcl.2009.07.090] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2009] [Revised: 06/26/2009] [Accepted: 07/14/2009] [Indexed: 11/27/2022]
|
19
|
Prisinzano TE. Natural products as tools for neuroscience: discovery and development of novel agents to treat drug abuse. JOURNAL OF NATURAL PRODUCTS 2009; 72:581-7. [PMID: 19099466 PMCID: PMC2788013 DOI: 10.1021/np8005748] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Much of what we know about the neurosciences is the direct result of studying psychoactive natural products. Unfortunately, there are many gaps in our understanding of the basic biological processes that contribute to the etiology of many CNS disorders. The investigation of psychoactive natural products offers an excellent approach to identify novel agents to treat CNS disorders and to find new chemical tools to better elucidate their biological mechanisms. This review will detail recent progress in a program directed toward investigating psychoactive natural products with the goal of treating drug abuse by targeting kappa opioid receptors.
Collapse
Affiliation(s)
- Thomas E Prisinzano
- Department of Medicinal Chemistry, University of Kansas, Lawrence, Kansas 66045, USA.
| |
Collapse
|
20
|
Tietze L, Brazel C, Hölsken S, Magull J, Ringe A. Totalsynthese polyoxygenierter Cembrene. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800626] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
21
|
|
22
|
Zhao YJ, Loh TP. Bio-inspired polyene cyclization: synthesis of tetracyclic terpenoids promoted by steroidal acetal-SnCl4. Chem Commun (Camb) 2008:1434-6. [PMID: 18338047 DOI: 10.1039/b714474a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This communication describes a highly efficient intermolecular polyene cyclization method using steroidal acetals as the initiators to synthesize tetracyclic terpenoids; both good yields and good asymmetric induction were obtained.
Collapse
Affiliation(s)
- Yu-Jun Zhao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 1 Nanyang Walk, Block 5 level 3, Singapore639798
| | | |
Collapse
|
23
|
Blunt JW, Copp BR, Hu WP, Munro MHG, Northcote PT, Prinsep MR. Marine natural products. Nat Prod Rep 2008; 25:35-94. [PMID: 18250897 DOI: 10.1039/b701534h] [Citation(s) in RCA: 284] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review covers the literature published in 2006 for marine natural products, with 758 citations (534 for the period January to December 2006) referring to compounds isolated from marine microorganisms and phytoplankton, green algae, brown algae, red algae, sponges, cnidaria, bryozoans, molluscs, tunicates and echinoderms. The emphasis is on new compounds (779 for 2006), together with their 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.
Collapse
Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
| | | | | | | | | | | |
Collapse
|
24
|
|
25
|
Roy A, Roberts FG, Wilderman PR, Zhou K, Peters RJ, Coates RM. 16-Aza-ent-beyerane and 16-Aza-ent-trachylobane: potent mechanism-based inhibitors of recombinant ent-kaurene synthase from Arabidopsis thaliana. J Am Chem Soc 2007; 129:12453-60. [PMID: 17892288 PMCID: PMC3714097 DOI: 10.1021/ja072447e] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The secondary ent-beyeran-16-yl carbocation (7) is a key branch point intermediate in mechanistic schemes to rationalize the cyclic structures of many tetra- and pentacyclic diterpenes, including ent-beyerene, ent-kaurene, ent-trachylobane, and ent-atiserene, presumed precursors to >1000 known diterpenes. To evaluate these mechanistic hypotheses, we synthesized the heterocyclic analogues 16-aza-ent-beyerane (12) and 16-aza-ent-trachylobane (13) by means of Hg(II)- and Pb(IV)-induced cyclizations onto the Delta12 double bonds of tricyclic intermediates bearing carbamoylmethyl and aminomethyl groups at C-8. The 13,16-seco-16-norcarbamate (20a) was obtained from ent-beyeran-16-one oxime (17) by Beckmann fragmentation, hydrolysis, and Curtius rearrangement. The aza analogues inhibited recombinant ent-kaurene synthase from Arabidopsis thaliana (GST-rAtKS) with inhibition constants (IC50 = 1 x 10-7 and 1 x 10-6 M) similar in magnitude to the pseudo-binding constant of the bicyclic ent-copalyl diphosphate substrate (Km = 3 x 10-7 M). Large enhancements of binding affinities (IC50 = 4 x 10-9 and 2 x 10-8 M) were observed in the presence of 1 mM pyrophosphate, which is consistent with a tightly bound ent-beyeranyl+/pyrophosphate- ion pair intermediate in the cyclization-rearrangement catalyzed by this diterpene synthase. The weak inhibition (IC50 = 1 x 10-5 M) exhibited by ent-beyeran-16-exo-yl diphosphate (11) and its failure to undergo bridge rearrangement to kaurene appear to rule out the covalent diphosphate as a free intermediate. 16-Aza-ent-beyerane is proposed as an effective mimic for the ent-beyeran-16-yl carbocation with potential applications as an active site probe for the various ent-diterpene cyclases and as a novel, selective inhibitor of gibberellin biosynthesis in plants.
Collapse
Affiliation(s)
- Arnab Roy
- Albany Molecular Sciences, Hyderabad, India
- Department of Chemistry University of Illinois, 600 South Mathews Avenue Urbana, IL 61801
| | - Frank G. Roberts
- Department of Chemistry, University of Chicago, Chicago, IL
- Department of Chemistry University of Illinois, 600 South Mathews Avenue Urbana, IL 61801
| | - P. Ross Wilderman
- Department of Biochemistry, Biophysics, & Molecular Biology, Iowa State University, Ames, IA 50011
| | - Ke Zhou
- Department of Biochemistry, Biophysics, & Molecular Biology, Iowa State University, Ames, IA 50011
| | - Reuben J. Peters
- Department of Biochemistry, Biophysics, & Molecular Biology, Iowa State University, Ames, IA 50011
| | - Robert M. Coates
- Department of Chemistry University of Illinois, 600 South Mathews Avenue Urbana, IL 61801
| |
Collapse
|
26
|
Synthesis from geraniol of (2E,6E,10E,14E)-16-hydroxygeranylgeraniol and some of its derivatives. Chem Nat Compd 2007. [DOI: 10.1007/s10600-007-0104-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
27
|
|