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Ashwini K, Siva B, Poornima P, Reddy SD, Sastry VG, Babu KS. New cytotoxic spatane diterpenoids from marine alga Stoechospermum marginatum. Fitoterapia 2024; 177:106071. [PMID: 38906385 DOI: 10.1016/j.fitote.2024.106071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 06/12/2024] [Accepted: 06/16/2024] [Indexed: 06/23/2024]
Abstract
Three new spatane diterpenoids (1-3) were isolated from the brown alga Stoechospermum marginatum together with three known compounds (4-6). The structures of these compounds were determined by the detailed NMR spectroscopic and Mass spectrometric analyses. All the isolated compounds were screened for their cytotoxic potentials against a panel of four human cancer cell lines, which include DU145 (Prostate), B16F10 (Melanoma), MDA MB-231 (Breast), and HeLa (Cervical) along with a normal cell line (HEK). The screening results indicated that compounds 1, 4 and 5 displayed significant activities against B16F10 [IC50, 6.21 ± 0.14, 5.88 ± 0.21, 5.31 ± 0.24 μM] and MDA MB-231 [9.25 ± 0.61, 4.59 ± 0.14, 4.19 ± 0.13 μM] cell lines, respectively. In view of their significant activity, these compounds 1, 4 and 5 were further taken up for detailed fluorescence assays, scratch assay and flow cytometry analysis, which revealed that they diminished proliferation and arrested cell cycle in the S phase and G2/M phase, which induced cell death by apoptosis. Overall, based on their considerable results, these compounds could serve as lead molecules in the development of anticancer drug candidates.
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Affiliation(s)
- Kolukula Ashwini
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Bandi Siva
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Penta Poornima
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Solipeta Divya Reddy
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India
| | - Vedula Girija Sastry
- AU College of Pharmaceutical Sciences, Department of Medicinal Chemistry, Andhra University, Visakhapatnam 530003, Andhra Pradesh, India
| | - Katragadda Suresh Babu
- Department of Natural Products and Medicinal Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India.
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Cuevas B, Arroba AI, de Los Reyes C, Zubía E. Rugulopteryx-Derived Spatane, Secospatane, Prenylcubebane and Prenylkelsoane Diterpenoids as Inhibitors of Nitric Oxide Production. Mar Drugs 2023; 21:md21040252. [PMID: 37103391 PMCID: PMC10142882 DOI: 10.3390/md21040252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/16/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023] Open
Abstract
This study aimed to evaluate the anti-inflammatory potential of the different classes of diterpenoids produced by algae of the genus Rugulopteryx. First, sixteen diterpenoids (1-16), including spatane, secospatane, prenylcubebane, and prenylkelsoane metabolites, were isolated from the extract of the alga Rugulopteryx okamurae collected at the southwestern Spanish coasts. Eight of the isolated diterpenoids are new compounds whose structures were determined by spectroscopic means: the spatanes okaspatols A-D (1-4); the secospatane rugukamural D (8); the prenylcubebanes okacubols A (13) and B (14); and okamurol A (16), which exhibits an unusual diterpenoid skeleton featuring a kelsoane-type tricyclic nucleus. Second, anti-inflammatory assays were performed on microglial cells Bv.2 and macrophage cells RAW 264.7. Compounds 1, 3, 6, 12, and 16 caused significant inhibition of the NO overproduction induced by LPS in Bv.2 cells, and compounds 3, 5, 12, 14, and 16 significantly decreased levels of NO in LPS-stimulated RAW 264.7 cells. The most active compound was okaspatol C (3), which completely suppressed the effects of LPS stimulation, both in Bv.2 and in RAW 264.7 cells.
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Affiliation(s)
- Belén Cuevas
- Departamento de Química Orgánica, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510 Puerto Real (Cádiz), Spain
- Unidad de Investigación, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Avda. Ana de Viya 21, 11009 Cádiz, Spain
| | - Ana I Arroba
- Unidad de Investigación, Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Hospital Universitario Puerta del Mar, Avda. Ana de Viya 21, 11009 Cádiz, Spain
- Departamento de Biomedicina, Biotecnología y Salud Pública, Facultad de Medicina, Universidad de Cádiz, Pl. Falla, 9, 11003 Cádiz, Spain
| | - Carolina de Los Reyes
- Departamento de Química Orgánica, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510 Puerto Real (Cádiz), Spain
| | - Eva Zubía
- Departamento de Química Orgánica, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, 11510 Puerto Real (Cádiz), Spain
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Nguyen NBA, Chen LY, El-Shazly M, Peng BR, Su JH, Wu HC, Lee IT, Lai KH. Towards Sustainable Medicinal Resources through Marine Soft Coral Aquaculture: Insights into the Chemical Diversity and the Biological Potential. Mar Drugs 2022; 20:md20100640. [PMID: 36286463 PMCID: PMC9604854 DOI: 10.3390/md20100640] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/03/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
In recent decades, aquaculture techniques for soft corals have made remarkable progress in terms of conditions and productivity. Researchers have been able to obtain larger quantities of soft corals, thus larger quantities of biologically active metabolites, allowing them to study their biological activity in many pharmacological assays and even produce sufficient quantities for clinical trials. In this review, we summarize 201 secondary metabolites that have been identified from cultured soft corals in the era from 2002 to September 2022. Various types of diterpenes (eunicellins, cembranes, spatanes, norcembranes, briaranes, and aquarianes), as well as biscembranes, sterols, and quinones were discovered and subjected to bioactivity investigations in 53 different studies. We also introduce a more in-depth discussion of the potential biological effects (anti-cancer, anti-inflammatory, and anti-microbial) and the mechanisms of action of the identified secondary metabolites. We hope this review will shed light on the untapped potential applications of aquaculture to produce valuable secondary metabolites to tackle current and emerging health conditions.
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Affiliation(s)
- Ngoc Bao An Nguyen
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Lo-Yun Chen
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - Bo-Rong Peng
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Jui-Hsin Su
- National Museum of Marine Biology & Aquarium, Pingtung 94450, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Ho-Cheng Wu
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - I-Ta Lee
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei 11031, Taiwan
| | - Kuei-Hung Lai
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
- Ph.D. Program in Clinical Drug Development of Herbal Medicine, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
- Traditional Herbal Medicine Research Center, Taipei Medical University Hospital, Taipei 11031, Taiwan
- Correspondence: ; Tel.: +886-2-2736-1661 (ext. 6157)
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Cerri F, Saliu F, Maggioni D, Montano S, Seveso D, Lavorano S, Zoia L, Gosetti F, Lasagni M, Orlandi M, Taglialatela-Scafati O, Galli P. Cytotoxic Compounds from Alcyoniidae. An Overview of the Last 30 Years. Mar Drugs 2022; 20:md20020134. [PMID: 35200663 PMCID: PMC8874409 DOI: 10.3390/md20020134] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 01/29/2022] [Accepted: 02/10/2022] [Indexed: 11/30/2022] Open
Abstract
The octocoral family Alcyoniidae represents a rich source of bioactive substances with intriguing and unique structural features. This review aims to provide an updated overview of the compounds isolated from Alcyoniidae and displaying potential cytotoxic activity. In order to allow a better comparison among the bioactive compounds, we focused on molecules evaluated in vitro by using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay, by far the most widely used method to analyze cell proliferation and viability. Specifically, we surveyed the last thirty years of research, finding 153 papers reporting on 344 compounds with proven cytotoxicity. The data were organized in tables to provide a ranking of the most active compounds, to be exploited for the selection of the most promising candidates for further screening and pre-clinical evaluation as anti-cancer agents. Specifically, we found that (22S,24S)-24-methyl-22,25-epoxyfurost-5-ene-3β,20β-diol (16), 3β,11-dihydroxy-24-methylene-9,11-secocholestan-5-en-9-one (23), (24S)-ergostane-3β,5α,6β,25 tetraol (146), sinulerectadione (227), sinulerectol C (229), and cladieunicellin I (277) exhibited stronger cytotoxicity than their respective positive control and that their mechanism of action has not yet been further investigated.
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Affiliation(s)
- Federico Cerri
- Department of Biotechnology and Biosciences, University of Milano Bicocca, Piazza della Scienza 2, 20126 Milano, Italy;
| | - Francesco Saliu
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- Correspondence: ; Tel.: +39-0264482813
| | - Davide Maggioni
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
| | - Simone Montano
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
| | - Davide Seveso
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
| | - Silvia Lavorano
- Costa Edutainment SpA—Acquario di Genova, Area Porto Antico, Ponte Spinola, 16128 Genoa, Italy;
| | - Luca Zoia
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | - Fabio Gosetti
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | - Marina Lasagni
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | - Marco Orlandi
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
| | | | - Paolo Galli
- Department of Earth and Environmental Sciences DISAT, University of Milano Bicocca, Piazza della Scienza 1, 20126 Milano, Italy; (D.M.); (S.M.); (D.S.); (L.Z.); (F.G.); (M.L.); (M.O.); (P.G.)
- MaRHE Centre (Marine Research and High Education Center), Magoodhoo Island, Faafu Atoll 12030, Maldives
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Wu MJ, Yu DD, Su MZ, Wang JR, Gong L, Zhang ZY, Wang H, Guo YW. Discovery and photosynthesis of sinuaustones A and B, diterpenoids with a novel carbon scaffold isolated from soft coral Sinularia australiensis from Hainan. Org Chem Front 2022. [DOI: 10.1039/d2qo01265k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel diterpenoids, sinuaustones A (1) and B (2), featuring an unprecedented tricyclo[9.3.1.03,15]tetradecane carbon framework were isolated from the South China Sea soft coral Sinularia australiensis.
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Affiliation(s)
- Meng-Jun Wu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Dan-Dan Yu
- Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
| | - Ming-Zhi Su
- Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
| | - Jian-Rong Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Lei Gong
- Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Zai-Yong Zhang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
| | - Hong Wang
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yue-Wei Guo
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals and College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou 310014, China
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai rim Advanced Research Institute for Drug Discovery, Yantai, Shandong 264117, China
- Open Studio for Druggability Research of Marine Natural Products, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao, 266237, China
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Chemical Diversity and Biological Activity of Secondary Metabolites from Soft Coral Genus Sinularia since 2013. Mar Drugs 2021; 19:md19060335. [PMID: 34208171 PMCID: PMC8230912 DOI: 10.3390/md19060335] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/04/2021] [Accepted: 06/10/2021] [Indexed: 12/18/2022] Open
Abstract
Sinularia is one of the conspicuous soft coral species widely distributed in the world’s oceans at a depth of about 12 m. Secondary metabolites from the genus Sinularia show great chemical diversity. More than 700 secondary metabolites have been reported to date, including terpenoids, norterpenoids, steroids/steroidal glycosides, and other types. They showed a broad range of potent biological activities. There were detailed reviews on the terpenoids from Sinularia in 2013, and now, it still plays a vital role in the innovation of lead compounds for drug development. The structures, names, and pharmacological activities of compounds isolated from the genus Sinularia from 2013 to March 2021 are summarized in this review.
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Cai YS, Cui WX, Tang W, Guo YW. Uncommon terpenoids with anti-inflammatory activity from the Hainan soft coral Sinularia tumulosa. Bioorg Chem 2020; 104:104167. [PMID: 32920351 DOI: 10.1016/j.bioorg.2020.104167] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 08/01/2020] [Accepted: 08/03/2020] [Indexed: 11/28/2022]
Abstract
One novel sesquiterpenoid containing an unprecedented eight-membered cyclic peroxide motif, sinulatumolin A (1), along with four new related terpenoids, namely sinulatumolins B-E (2-4 and 6), were isolated from South China Sea soft coral Sinularia tumulosa. The structures of all the isolates were elucidated by detailed spectroscopic analysis, chemical transformations, and single X-ray diffraction analysis. Compound 1 represents the first example of sesquiterpene bearing an eight-membered cyclic peroxide ring from soft coral. All the new compounds isolated were evaluated for their anti-inflammatory activity. Compounds 1, 3, 4 and 6 displayed significant TNF-α inhibitory activity being comparable with that of the positive control dexamethasone (IC50 = 8.7 μM), with IC50 values of 7.5, 2.6, 5.5, and 3.6 μM, respectively.
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Affiliation(s)
- You-Sheng Cai
- Institute of TCM and Natural Products, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China
| | - Wan-Xiang Cui
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Wei Tang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555, Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China.
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Kamada T, Phan CS, Hamada T, Hatai K, Vairappan CS. Cytotoxic and Antifungal Terpenoids from Bornean Soft Coral, Sinularia flexibilis. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300106] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
One new cembrane, ent -sinuflexibilin D (1), along with seven known compounds (2-8) were isolated from a population of Bornean soft coral Sinularia flexibilis. Their structures were elucidated on the basis of spectroscopic analyses. Cytotoxicity and antifungal activities of these compounds were evaluated in vitro. In addition, muurolene 7 was first isolates from a marine source.
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Affiliation(s)
- Takashi Kamada
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Chin-Soon Phan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Toshiyuki Hamada
- Graduate School of Science and Engineering, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065, Japan
| | - Kishio Hatai
- Microbiology and Fish Disease Laboratory, Borneo Marine Research Institute, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
| | - Charles Santhanaraju Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, 88400 Kota Kinabalu, Sabah, Malaysia
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Islam MT. Diterpenes and Their Derivatives as Potential Anticancer Agents. Phytother Res 2017; 31:691-712. [PMID: 28370843 DOI: 10.1002/ptr.5800] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 02/23/2017] [Accepted: 02/26/2017] [Indexed: 12/21/2022]
Abstract
As therapeutic tools, diterpenes and their derivatives have gained much attention of the medicinal scientists nowadays. It is due to their pledging and important biological activities. This review congregates the anticancer diterpenes. For this, a search was made with selected keywords in PubMed, Science Direct, Web of Science, Scopus, The American Chemical Society and miscellaneous databases from January 2012 to January 2017 for the published articles. A total 28, 789 published articles were seen. Among them, 240 were included in this study. More than 250 important anticancer diterpenes and their derivatives were seen in the databases, acting in the different pathways. Some of them are already under clinical trials, while others are in the nonclinical and/or pre-clinical trials. In conclusion, diterpenes may be one of the lead molecules in the treatment of cancer. Copyright © 2017 John Wiley & Sons, Ltd.
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Affiliation(s)
- Muhammad Torequl Islam
- Department of Pharmacy, Southern University Bangladesh, Northeast Biotechnology Network (RENORBIO), Postgraduate Program in Biotechnology, Federal University of Piauí, Teresina, 64.049-550, Brazil
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Velatooru LR, Baggu CB, Janapala VR. Spatane diterpinoid from the brown algae, Stoechospermum marginatum induces apoptosis via ROS induced mitochondrial mediated caspase dependent pathway in murine B16F10 melanoma cells. Mol Carcinog 2016; 55:2222-2235. [PMID: 26785383 DOI: 10.1002/mc.22463] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 12/15/2015] [Accepted: 01/06/2016] [Indexed: 12/16/2023]
Abstract
Spatane diterpinoids isolated from the brown marine algae Stoechospermum marginatum were known to have cytotoxic effects in human cancerous cell lines and murine melanoma cells; the underling apoptotic mechanism of diterpinoids still remains unclear so far. Thus, in the present study, the apoptotic mechanism of a spatane diterpinoid, 5(R), 19-diacetoxy-15,18(R and S), dihydro spata-13, 16(E)-diene (DDSD) was investigated mainly in B16F10 melanoma cells because they were most susceptible to DDSD than THP1, U937, COLO205, and HL60 cells. The treatment of B6F10 cells with DDSD resulted in morphological alterations, nuclear condensation, and DNA fragmentation, which leads to cell growth inhibition in a concentration-dependent manner. Data indicate that DDSD induced the generation of ROS, consequentially caused alteration in Bax/Bcl-2 ratio that disrupted the inner mitochondrial transmembrane potential (ΔΨm) resulting in cytochrome c redistribution to the cytoplasm and activation of caspase-mediated apoptotic pathway. Flow cytometric analysis clearly indicated that the DDSD inducing phosphatidylserine externalization and mediated "S-phase" arrest in cell cycle. In addition, results also found that DDSD induced apoptosis through deregulating PI3K/AKT signaling pathway. The anti-tumor activity of DDSD was evaluated in C57BL/6 mice bearing B16F10 melanoma. It effectively inhibited tumor growth (volume and weight) in a dose dependent manner, yet without apparent toxic effects. Morphology and apoptotic status of tumor tissues in the treated mice were assessed by microscopy and TUNEL assay, respectively. Our study shows a therapeutic potential of DDSD for the treatment of malignant melanoma and a new source of anticancer drugs. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Loka Reddy Velatooru
- Division of Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
| | - Chinna Babu Baggu
- Division of Natural Product, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, India
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Huang CY, Tseng YJ, Chokkalingam U, Hwang TL, Hsu CH, Dai CF, Sung PJ, Sheu JH. Bioactive Isoprenoid-Derived Natural Products from a Dongsha Atoll Soft Coral Sinularia erecta. JOURNAL OF NATURAL PRODUCTS 2016; 79:1339-1346. [PMID: 27142697 DOI: 10.1021/acs.jnatprod.5b01142] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Four new isoprenoids, including two norcembranoids sinulerectols A and B (1 and 2), a cembranoid sinulerectol C (3), and a degraded cembranoid sinulerectadione (4), along with three known isoprenoids, an unnamed norcembrene (5), sinularectin (6), and ineleganolide (7), and a known nitrogen-containing compound (Z)-N-[2-(4-hydroxyphenyl)ethyl]-3-methyldodec-2-enamide (8), were isolated from an extract of the marine soft coral Sinularia erecta. The structure of sinularectin (6) was revised, too. Compounds 3, 4, and 8 exhibited inhibitory activity against the proliferation of a limited panel of cancer cell lines, whereas 1, 2, and 8 displayed potent anti-inflammatory activity in fMLP/CB-stimulated human neutrophils.
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Affiliation(s)
- Chiung-Yao Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | - Yen-Ju Tseng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | - Uvarani Chokkalingam
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Research Center for Industry of Human Ecology and Graduate Institute of Health Industry Technology, Chang Gung University of Science and Technology, Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chi-Hsin Hsu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
| | - Chang-Feng Dai
- Institute of Oceanography, National Taiwan University , Taipei 106, Taiwan
| | - Ping-Jyun Sung
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
- National Museum of Marine Biology & Aquarium , Pingtung 944, Taiwan
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
- Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University , Taichung 404, Taiwan
- Frontier Center for Ocean Science and Technology, National Sun Yat-sen University , Kaohsiung 804, Taiwan
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Rahelivao MP, Gruner M, Lübken T, Islamov D, Kataeva O, Andriamanantoanina H, Bauer I, Knölker HJ. Chemical constituents of the soft corals Sinularia vanderlandi and Sinularia gravis from the coast of Madagascar. Org Biomol Chem 2015; 14:989-1001. [PMID: 26626232 DOI: 10.1039/c5ob02280k] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The crude extracts of the Madagascan soft corals Sinularia vanderlandi and Sinularia gravis (Alcyoniidae) showed activity against Plasmodium falciparum which led us to study their chemical constituents. The new cadinane-type sesquiterpenoid vanderlandin (1) has been obtained from S. vanderlandi along with 24-methylenecholesterol (2). Four new compounds, the spatane-type diterpenoid gravilin (3), the monoalkylmonoacylglycerol 4, the dihomoditerpenoid ketone 5, and isodecaryiol (9), along with the three known compounds (+)-(S)-geranyllinalool (6), (-)-(R)-nephthenol (7), and 11,12-epoxysarcophytol A (8) have been isolated from the methanol extract of S. gravis. The structures were elucidated based on extensive spectroscopic methods, in particular various 2D NMR techniques. The structure of isodecaryiol (9) including its absolute configuration could be confirmed by X-ray diffraction.
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Abstract
This review covers the literature published in 2013 for marine natural products (MNPs), with 982 citations (644 for the period January to December 2013) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1163 for 2013), together with the relevant biological activities, source organisms and country of origin. Reviews, biosynthetic studies, first syntheses, and syntheses that lead to the revision of structures or stereochemistries, have been included.
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Affiliation(s)
- John W Blunt
- Department of Chemistry, University of Canterbury, Christchurch, New Zealand.
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New sinularianin sesquiterpenes from soft coral Sinularia sp. Mar Drugs 2013; 11:4741-50. [PMID: 24317466 PMCID: PMC3877883 DOI: 10.3390/md11124741] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Revised: 11/04/2013] [Accepted: 11/04/2013] [Indexed: 11/17/2022] Open
Abstract
Four new sesquiterpenes, sinularianins C–F (3–6), together with known sinularianins A (1) and B (2) were identified from a South China Sea soft coral Sinularia sp. Compounds 1–6 were evaluated for inhibition of NF-κB activation using the cell-based HEK293 NF-κB luciferase reporter gene assay. Compounds 1 and 4 were exhibited a potent effect with inhibitory rates of 41.3% and 43.0% at the concentration of 10 µg/mL, respectively.
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Lin YF, Kuo CY, Wen ZH, Lin YY, Wang WH, Su JH, Sheu JH, Sung PJ. Flexibilisquinone, a new anti-inflammatory quinone from the cultured soft coral Sinularia flexibilis. Molecules 2013; 18:8160-7. [PMID: 23846756 PMCID: PMC6269975 DOI: 10.3390/molecules18078160] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 07/04/2013] [Accepted: 07/08/2013] [Indexed: 12/22/2022] Open
Abstract
A new quinone derivative, flexibilisquinone (1), was isolated from the cultured soft coral Sinulariaflexibilis, originally distributed in the waters of Taiwan. The structure of quinone 1 was established by extensive spectroscopic methods, particularly 1D and 2D NMR experiments. In the in vitro anti-inflammatory effects test, quinone 1 was found to significantly inhibit the accumulation of the pro-inflammatory iNOS and COX-2 proteins of the LPS-stimulated RAW264.7 macrophage cells.
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Affiliation(s)
- Yu-Fang Lin
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; E-Mails: (Y.-F.L.); (Z.-H.W.); (Y.-Y.L.); (W.-H.W.)
| | - Chao-Ying Kuo
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (C.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; E-Mails: (Y.-F.L.); (Z.-H.W.); (Y.-Y.L.); (W.-H.W.)
- Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung 804, Taiwan
| | - Yen-You Lin
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; E-Mails: (Y.-F.L.); (Z.-H.W.); (Y.-Y.L.); (W.-H.W.)
| | - Wei-Hsien Wang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; E-Mails: (Y.-F.L.); (Z.-H.W.); (Y.-Y.L.); (W.-H.W.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
- Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Jui-Hsin Su
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (C.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
- Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Jyh-Horng Sheu
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; E-Mails: (Y.-F.L.); (Z.-H.W.); (Y.-Y.L.); (W.-H.W.)
- Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-sen University and Academia Sinica, Kaohsiung 804, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (J.-H.S.); (P.-J.S.); Tel.: +886-7-525-2000 (ext. 5030) (J.-H.S.); +886-8-882-5037 (P.-J.S.); Fax: +886-7-525-5020 (J.-H.S.); +886-8-882-5087 (P.-J.S.)
| | - Ping-Jyun Sung
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; E-Mails: (Y.-F.L.); (Z.-H.W.); (Y.-Y.L.); (W.-H.W.)
- Graduate Institute of Marine Biotechnology, National Dong Hwa University, Pingtung 944, Taiwan; E-Mails: (C.-Y.K.); (J.-H.S.)
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan
- Division of Marine Biotechnology, Asia-Pacific Ocean Research Center, National Sun Yat-sen University, Kaohsiung 804, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital, Taichung 404, Taiwan
- Graduate Institute of Natural Products, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Authors to whom correspondence should be addressed; E-Mails: (J.-H.S.); (P.-J.S.); Tel.: +886-7-525-2000 (ext. 5030) (J.-H.S.); +886-8-882-5037 (P.-J.S.); Fax: +886-7-525-5020 (J.-H.S.); +886-8-882-5087 (P.-J.S.)
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