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Mohamed TA, Abdelmawgoud SM, Hamdy AA, Ibrahim MAA, Elshamy AI, Atia MAM, Kassem HA, Hegazy MEF, Selim NM. A new cembranoid from the Red Sea soft coral Sarcophyton acutum. Nat Prod Res 2024; 38:512-522. [PMID: 36200738 DOI: 10.1080/14786419.2022.2130915] [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: 06/13/2022] [Accepted: 09/25/2022] [Indexed: 10/10/2022]
Abstract
The Red Sea soft coral Sarcophyton acutum ethyl acetate extract has afforded one new cembranoid; sarcacutumolid A (1), along with six known metabolites have been isolated from S. acutum for the first time (2-7). Chemical structures were elucidated by employing several spectroscopic analyses. The cytotoxic potential of the isolated compounds was assessed against four human cancer cell lines; hepatocellular (HepG2), cervical (HeLa), breast (MCF-7) and colorectal cancer (Colo-205). Sarcacutumolid A (1) and gorgosterol (7) inhibited colorectal cancer cell proliferation in a concentration-dependent manner with IC50 values of 35.5 and 44.0 μM, respectively.
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Affiliation(s)
- Tarik A Mohamed
- Chemistry of Medicinal Plants Dept, Chemistry of Medicinal Plants, Dokki, Giza, Egypt
| | - Seba M Abdelmawgoud
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt
| | - Abdelhamid A Hamdy
- Chemistry of Natural and Microbial Products Department, National Research Centre, Dokki, Giza, Egypt
| | - Mahmoud A A Ibrahim
- Computational Chemistry Laboratory, Chemistry Department, Faculty of Science, Minia University, Minia, Egypt
| | - Abdelsamed I Elshamy
- Department of Natural Compounds Chemistry, National Research Centre, Dokki, Giza, Egypt
| | - Mohamed A M Atia
- Molecular Genetics and Genome Mapping Laboratory, Genome Mapping Department, Agricultural Genetic Engineering Research Institute (AGERI), ARC, Giza, Egypt
| | - Hanaa A Kassem
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | | | - Nabil M Selim
- Pharmacognosy Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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2
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Bawakid NO, Alorfi HS, Alqarni NM, Abdel-Naim AB, Alarif WM. Cembranoids from the Red Sea soft coral Sarcophyton glaucum protect against indomethacin-induced gastric injury. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:289-300. [PMID: 36322163 DOI: 10.1007/s00210-022-02313-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/17/2022] [Indexed: 11/06/2022]
Abstract
Soft corals and their secondary metabolites represent an exceptional source of potential drugs. In this regard, Sarcophyton glaucum-derived secondary metabolites were examined for their preventive activities against indomethacin-induced gastric ulcer. Extraction and chromatographic processing of a specimen of S. glaucum collected from the Red Sea waters of Jeddah city resulted in the isolation of eight metabolites including two furanone-based cembranoids (1 and 2), two known pyran-based cembranoids (3 and 4), a known aromadendrene derivative (5), a δ-lactone fatty acid derivative (6), and two known gorgostane-type sterols (7 and 8). Compounds 1 and 6 are new chemical structures, named Δ12(20)-sarcophine and sarcoglaucanoate, respectively. In an initial pilot experiment, compounds 1 and 2 showed significant protective activities against indomethacin-induced peptic ulcer in rats. These data were evidenced by their ability to ameliorate the elevated ulcer indices and prevent histopathological alterations observed in the untreated animals. Their effects were mediated by enhanced mucin as shown by Alcian blue and periodic acid-Schiff (PAS) staining of stomach sections. Compounds 1 and 2 exerted significant antioxidant properties as they prevent reduced glutathione (GSH) depletion, malondialdehyde (MDA) accumulation, and superoxide dismutase (SOD) exhaustion. Furthermore, immunohistochemical analyses indicated that both compounds inhibited the expression of interleukin-6 (IL-6) and tumor necrosis-α (TNF-α) as compared to indomethacin alone-treated animals. These actions were accompanied by significant enhancement of tumor growth factor-β (TGF-β) expression. In conclusion, two cembranoids exhibited protective activities against indomethacin-induced peptic ulcer. This is, at least partly, mediated by their pro-mucin, antioxidant, anti-inflammatory, and TGF-β stimulating properties.
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Affiliation(s)
- Nahed O Bawakid
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Hajer S Alorfi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Nawal M Alqarni
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Ashraf B Abdel-Naim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
| | - Walied M Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, Jeddah, 21589, Saudi Arabia.
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3
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Zidan SAH, Abdelhamid RA, Alian A, Fouad MA, Matsunami K, Orabi MAA. Diterpenes and sterols from the Red Sea soft coral Sarcophyton trocheliophorum and their cytotoxicity and anti-leishmanial activities. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:794-802. [PMID: 34585632 DOI: 10.1080/10286020.2021.1979522] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
The ethyl acetate and dichloromethane-soluble fractions, from a soft coral Sarcophyton trocheliophorum total methanolic extract, exhibited significant anti-leishmanial and cytotoxic activities. These active fractions yielded a new cembranoid diterpene (1), two known analogues [sarcotrocheliol (2) and sarcophine (3)], and two sterols [(24S)-24-methylcholesterol (4) and gorgosterol (5)]. The structure of the new diterpene (1) was determined via a detailed analysis of its spectroscopic data. Compounds 3 and 5 demonstrated noticeable cytotoxicity on A549 (IC50 17.4 ± 1.9 µg/ml) and HepG2 (IC50 17.7 ± 1.5 µg/ml) cell lines, respectively. None of the isolates 1‒5 showed detectable anti-leishmanial activity (IC50 >100 µg/ml).
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Affiliation(s)
- Sabry A H Zidan
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut-Branch, Assiut 71524, Egypt
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Reda A Abdelhamid
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut-Branch, Assiut 71524, Egypt
| | - Abdallah Alian
- Department of Zoology, Faculty of Science, Al-Azhar University, Assiut-Branch, Assiut 71524, Egypt
| | - Mostafa A Fouad
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia 61519, Egypt
| | - Katsuyoshi Matsunami
- Department of Pharmacognosy, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima 734-8553, Japan
| | - Mohamed A A Orabi
- Department of Pharmacognosy, Faculty of Pharmacy, Al-Azhar University, Assiut-Branch, Assiut 71524, Egypt
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Navabshan I, Sakthivel B, Pandiyan R, Antoniraj MG, Dharmaraj S, Ashokkumar V, Khoo KS, Chew KW, Sugumaran A, Show PL. Computational Lock and Key and Dynamic Trajectory Analysis of Natural Biophors Against COVID-19 Spike Protein to Identify Effective Lead Molecules. Mol Biotechnol 2021; 63:898-908. [PMID: 34159564 PMCID: PMC8219180 DOI: 10.1007/s12033-021-00358-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 06/13/2021] [Indexed: 01/03/2023]
Abstract
New pandemic infection of coronaviridae family virus spread to more than 210 countries with total infection of 1,136,851 and 62,955 (4.6%) deaths until 5th April 2020. Which stopped the regular cycle of humankind but the nature is consistently running. There is no micro molecule remedy found yet to restore the regular life of people. Hence, we decided to work on natural biophores against the COVID proteins. As a first step, major phytoconstituents of antiviral herbs like Leucas aspera, Morinda citrifolia, Azadirachta indica, Curcuma longa, Piper nigrum, Ocimum tenuiflorum, and Corallium rubrum collected and performed the lock and key analysis with major spike protein of COVID-19 to find the best fitting lead biophore using computational drug design platform. The results of protocol run showed, phytoconstituents of Morinda citrifolia and Leucas aspera were found lower binding energy range of - 55.18 to - 25.34 kcal/mol, respectively and compared with Hydroxychloroquine (HCQ) (- 24.29 kcal/mol) and Remdesivir (- 25.38 kcal/mol). The results conclude that, core skeletons chromen, anthracene 9, 11 dione and long-chain alkyl acids/ester-containing biophores showen high stable antagonistic affinity with S-protein. Which leads the breakdown of spike protein and ACE2 receptor complex formation and host mechanism of corono virus. In addition, the dynamic trajectory analysis confirmed the complete denaturation of spike protein by the molecule 4-(24-hydroxy-1-oxo-5-n-propyltetracosanyl)-phenol from Leucas aspera and stability of spike-ligand complex. These biophores will aid the researcher to fabricate new promising analogue and being recommended to assess its COVID-19 treatment.
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Affiliation(s)
- Irfan Navabshan
- Crescent School of Pharmacy, B.S. Abdur Rahman Cresent Institute of Science and Technology, Chennai, India
| | - Balasubramaniyan Sakthivel
- Drug Discovery and Development Research Group, Department of Pharmaceutical Technology, University College of Engineering, Anna University, BIT Campus, Tiruchirapalli, Tamil Nadu 620024 India
| | - Rajesh Pandiyan
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai, 600073 India
| | | | - Selvakumar Dharmaraj
- Department of Marine Biotechnology, Academy of Maritime Education and Training [AMET] (Deemed To Be University), Chennai, Tamil Nadu 603112 India
| | - Veeramuthu Ashokkumar
- Faculty of Science, Center of Excellence in Catalysis for Bioenergy and Renewable Chemicals (CBRC), Chulalongkorn University, Bangkok, Thailand
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, 600077 India
| | - Kuan Shiong Khoo
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan Malaysia
| | - Kit Wayne Chew
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Jalan Sunsuria, Bandar Sunsuria, 43900 Sepang, Selangor Malaysia
| | - Abimanyu Sugumaran
- Department of Pharmaceutics, SRM College of Pharmacy, SRM Institute of Science and Technology, Kattankulathur, 603203 India
| | - Pau Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan Malaysia
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Huang TY, Huang CY, Chen SR, Weng JR, Tu TH, Cheng YB, Wu SH, Sheu JH. New Hydroquinone Monoterpenoid and Cembranoid-Related Metabolites from the Soft Coral Sarcophyton tenuispiculatum. Mar Drugs 2020; 19:md19010008. [PMID: 33375440 PMCID: PMC7823492 DOI: 10.3390/md19010008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 12/21/2020] [Accepted: 12/23/2020] [Indexed: 12/23/2022] Open
Abstract
Chemical investigation of the marine soft coral Sarcophyton tenuispiculatum resulted in the isolation of a 1,4-dihydrobenzoquinone, sarcotenuhydroquinone (1), three new cembranoids, sarcotenusenes A‒C (2‒4), and ten previously reported metabolites 5–14. The chemical structures of all isolated metabolites were determined by detailed spectroscopic analyses. In biological assays, anti-inflammatory, cytotoxic, and peroxisome proliferator-activated receptor γ (PPAR-γ) transcription factor assays of all compounds were performed. None of the isolated compounds were found to exhibit activity in the PPAR-γ transcription factor assay. The anti-inflammatory assays showed that (+)-7α,8β-dihydroxydeepoxysarcophine (13) inhibited the production of IL-1β to 56 ± 1% at a concentration of 30 µM in lipopolysaccharide (LPS)-stimulated J774A.1 macrophage cells. In addition, 1 and 2 were found to exhibit cytotoxicity towards a panel of cancer cell lines.
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Affiliation(s)
- Tzu-Yin Huang
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (T.-Y.H.); (J.-R.W.)
| | - Chiung-Yao Huang
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (C.-Y.H.); (Y.-B.C.)
| | - Shu-Rong Chen
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
| | - Jing-Ru Weng
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (T.-Y.H.); (J.-R.W.)
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (C.-Y.H.); (Y.-B.C.)
| | - Tzu-Hsuan Tu
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung 804, Taiwan;
| | - Yuan-Bin Cheng
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (C.-Y.H.); (Y.-B.C.)
| | - Shih-Hsiung Wu
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan;
| | - Jyh-Horng Sheu
- Doctoral Degree Program in Marine Biotechnology, National Sun Yat-Sen University, Kaohsiung 804, Taiwan; (T.-Y.H.); (J.-R.W.)
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung 804, Taiwan; (C.-Y.H.); (Y.-B.C.)
- Graduate Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan;
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan
- Correspondence: ; Tel.: +886-7-525-2000 (ext. 5030); Fax: +886-7-525-5020
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6
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Cytotoxic polyhydroxy sterols from the Egyptian Red Sea soft coral Sarcophyton acutum. Fitoterapia 2020; 147:104765. [PMID: 33122132 DOI: 10.1016/j.fitote.2020.104765] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 10/19/2020] [Accepted: 10/21/2020] [Indexed: 12/13/2022]
Abstract
The methanolic extract and its sub-extracts (viz, n-hexane, DCM, EtOAc and MeOH) of the soft coral Sarcophyton acutum were evaluated as anti-Leishmania major and as anticancer (against the HepG2, MCF-7, and A549 cell lines) using the MTT assay. Six polyhydroxy sterols (1-6) were isolated from the most active cytotoxic and anti-leishmanial EtOAc-soluble fraction. Their structures were established as two new polyhydroxy sterols, acutumosterols A (1) and B (2), and four known structural analogues (3-6) by intensive spectroscopic analyses, and by comparison with data of related compounds. Compound 4 exerted noticeable cytotoxicity against HepG2 cell line (IC50 17.2 ± 1.5 μg/mL), while the other pure isolates showed weak to moderate cytotoxicity (24.8 ± 2.8-57.2 ± 5.2). The results were discussed in relation to the structural features of these closely related sterols.
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7
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Saleh HA, Raafat KM, Temraz TA, Noureldin N, Breitinger HG, Breitinger U. Sarcophine and (7S, 8R)-dihydroxydeepoxysarcophine from the Red Sea soft coral Sarcophyton glaucum as in vitro and in vivo modulators of glycine receptors. Neurotoxicology 2020; 80:105-111. [PMID: 32702364 DOI: 10.1016/j.neuro.2020.07.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 07/13/2020] [Accepted: 07/14/2020] [Indexed: 01/16/2023]
Abstract
The inhibitory glycine receptor (GlyR) is a key mediator of synaptic signalling in spinal cord, brain stem, and higher centres of the central nervous system. We examined the glycinergic activity of sarcophine (SN), a marine terpenoid known for its various biological activities, and its trans-diol derivative (7S, 8R)-dihydroxy-deepoxysarcophine (DSN). SN was isolated from the Red Sea soft coral Sacrophyton glaucum, DSN was semisynthesized by hydrolysis of the epoxide ring. In cytotoxicity tests against HEK293 cells, SN and DSN had LD50 values of 29.3 ± 3.0 mM and 123.5 ± 13.0 mM, respectively. Both compounds were tested against recombinant human α1 glycine receptors in HEK293 cells using whole-cell recording techniques. Both, SN and DSN were shown for the first time to be inhibitors of recombinant glycine receptors, with KIvalues of 2.1 ± 0.3 μM for SN, and 109 ± 9 μM for DSN. Receptor inhibition was also studied in vivo in a mouse model of strychnine toxicity. Surprisingly, in mouse experiments strychnine inhibition was not augmented by either terpenoid. While DSN had no significant effect on strychnine toxicity, SN even delayed strychnine effects. This could be accounted for by assuming that strychnine and sarcophine derivatives compete for the same binding site on the receptor, so the less toxic sarcophine can prevent strychnine from binding. The combination of modulatory activity and low level of toxicity makes sarcophines attractive structures for novel glycinergic drugs.
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Affiliation(s)
- Hesham A Saleh
- Department of Pharmaceutical Chemistry, German University in Cairo, New Cairo, Egypt
| | - Karim M Raafat
- Department of Biochemistry, German University in Cairo, New Cairo, Egypt
| | - Tarek A Temraz
- Department of Marine Sciences, Suez Canal University, Ismailia, Egypt
| | - Nazih Noureldin
- Department of Pharmaceutical Chemistry, German University in Cairo, New Cairo, Egypt.
| | | | - Ulrike Breitinger
- Department of Biochemistry, German University in Cairo, New Cairo, Egypt
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New Antiproliferative Cembrane Diterpenes from the Red Sea Sarcophyton Species. Mar Drugs 2019; 17:md17070411. [PMID: 31336764 PMCID: PMC6669714 DOI: 10.3390/md17070411] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Revised: 06/28/2019] [Accepted: 07/08/2019] [Indexed: 12/20/2022] Open
Abstract
The combination of liquid chromatography coupled to high resolution mass spectrometry (LC-HRESMS)-based dereplication and antiproliferative activity-guided fractionation was applied on the Red Sea-derived soft coral Sarcophyton sp. This approach facilitated the isolation of five new cembrane-type diterpenoids (1–5), along with two known analogs (6 and 7), as well as the identification of 19 further, known compounds. The chemical structures of the new compounds were elucidated while using comprehensive spectroscopic analyses, including one-dimensional (1D) and two-dimensional (2D) NMR and HRMS. All of the isolated cembranoids (1–7) showed moderate in vitro antiproliferative activity against a human breast cancer cell line (MCF-7), with IC50 ranging from 22.39–27.12 µg/mL. This class of compounds could thus serve as scaffold for the future design of anticancer leads.
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9
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A Brief Review on New Naturally Occurring Cembranoid Diterpene Derivatives from the Soft Corals of the Genera Sarcophyton, Sinularia, and Lobophytum Since 2016. Molecules 2019; 24:molecules24040781. [PMID: 30795596 PMCID: PMC6412313 DOI: 10.3390/molecules24040781] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Revised: 01/09/2019] [Accepted: 01/10/2019] [Indexed: 01/01/2023] Open
Abstract
This work reviews the new isolated cembranoid derivatives from species of the genera Sarcophyton, Sinularia, and Lobophytum as well as their biological properties, during 2016–2018. The compilation permitted to conclude that much more new cembranoid diterpenes were found in the soft corals of the genus Sarcophyton than in those belonging to the genera Lobophytum or Sinularia. Beyond the chemical composition, the biological properties were also reviewed, namely anti-microbial against several Gram-positive and Gram-negative bacteria and fungi, anti-inflammatory and anti-tumoral against several types of cancer cells. In spite of the biological activities detected in almost all samples, there is a remarkable diversity in the results which may be attributed to the chemical variability that needs to be deepened in order to develop new molecules with potential application in medicine.
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Hegazy MEF, Mohamed TA, Elshamy AI, Hamed AR, Ibrahim MAA, Ohta S, Umeyama A, Paré PW, Efferth T. Sarcoehrenbergilides D–F: cytotoxic cembrene diterpenoids from the soft coral Sarcophyton ehrenbergi. RSC Adv 2019; 9:27183-27189. [PMID: 35529183 PMCID: PMC9070672 DOI: 10.1039/c9ra04158c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 08/22/2019] [Indexed: 11/21/2022] Open
Abstract
A solvent extract of the soft coral Sarcophyton ehrenbergi afforded cembrene diterpenoids, sarcoehrenbergilid D–F (1–3). Chemical structures were established by modern spectroscopic techniques with absolute stereochemistries determined by circular dichroism (CD) and time-dependent density functional theory electronic CD calculations (TDDFT-ECD). Cytotoxicity activities for 1–3 were evaluated against three human cancer cell lines: lung (A549), colon (Caco-2) and liver (HepG2). A solvent extract of the soft coral Sarcophyton ehrenbergi afforded cembrene diterpenoids, sarcoehrenbergilid D–F (1–3).![]()
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Affiliation(s)
- Mohamed-Elamir F. Hegazy
- Department of Pharmaceutical Biology
- Institute of Pharmacy and Biochemistry
- Johannes Gutenberg University
- 55128 Mainz
- Germany
| | - Tarik A. Mohamed
- Chemistry of Medicinal Plants Department
- National Research Centre
- Giza 12622
- Egypt
| | - Abdelsamed I. Elshamy
- Natural Compound Chemistry Department
- National Research Centre
- Giza 12622
- Egypt
- Faculty of Pharmaceutical Sciences
| | - Ahmed R. Hamed
- Chemistry of Medicinal Plants Department
- National Research Centre
- Giza 12622
- Egypt
| | - Mahmoud A. A. Ibrahim
- Computational Chemistry Laboratory
- Chemistry Department
- Faculty of Science
- Minia University
- Minia 61519
| | - Shinji Ohta
- Graduate School of Biosphere Science
- Hiroshima University
- Higashi-Hiroshima 739-8521
- Japan
| | - Akemi Umeyama
- Faculty of Pharmaceutical Sciences
- Tokushima Bunri University
- Tokushima
- Japan
| | - Paul W. Paré
- Department of Chemistry and Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Thomas Efferth
- Department of Pharmaceutical Biology
- Institute of Pharmacy and Biochemistry
- Johannes Gutenberg University
- 55128 Mainz
- Germany
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11
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Antibacterial activity from soft corals of the Red Sea, Saudi Arabia. JOURNAL OF TAIBAH UNIVERSITY FOR SCIENCE 2018. [DOI: 10.1016/j.jtusci.2016.03.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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12
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Cembrene Diterpenoids with Ether Linkages from Sarcophyton ehrenbergi: An Anti-Proliferation and Molecular-Docking Assessment. Mar Drugs 2017. [PMID: 28635645 PMCID: PMC5484142 DOI: 10.3390/md15060192] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Three new cembrene diterpenoids, sarcoehrenbergilid A–C (1–3), along with four known diterpenoids, sarcophine (4), (+)-7α,8β-dihydroxydeepoxysarcophine (5), sinulolide A (6), and sinulolide B (7), and one steroid, sardisterol (8), were isolated and characterized from a solvent extract of the Red Sea soft coral Sarcophyton ehrenbergi. Chemical structures were elucidated by NMR and MS analyses with absolute stereochemistry determined by X-ray analysis. Since these isolated cembrene diterpenes contained 10 or more carbons in a large flexible ring, conformer stabilities were examined based on density functional theory calculations. Anti-proliferative activities for 1–8 were evaluated against three human tumor cell lines of different origins including the: lung (A549), colon (Caco-2), and liver (HepG2). Sardisterol (8) was the most potent of the metabolites isolated with an IC50 of 27.3 µM against the A549 cell line. Since an elevated human-cancer occurrence is associated with an aberrant receptor function for the epidermal growth factor receptor (EGFR), molecular docking studies were used to examine preferential metabolite interactions/binding and probe the mode-of-action for metabolite-anti tumor activity.
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13
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Yang L, Wu ZN, Zhang YB, Chen NH, Zhuang L, Li YL, Wang GC. Three new diterpenoids from Croton laui Merr. et Metc. Nat Prod Res 2016; 31:1028-1033. [DOI: 10.1080/14786419.2016.1266350] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Li Yang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Zhong-Nan Wu
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Yu-Bo Zhang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Neng-Hua Chen
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Ling Zhuang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Yao-Lan Li
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
| | - Guo-Cai Wang
- Institute of Traditional Chinese Medicine and Natural Products, College of Pharmacy, Jinan University, Guangzhou, P. R. China
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14
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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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15
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Hegazy MEF, Mohamed TA, Alhammady MA, Shaheen AM, Reda EH, Elshamy AI, Aziz M, Paré PW. Molecular architecture and biomedical leads of terpenes from red sea marine invertebrates. Mar Drugs 2015; 13:3154-81. [PMID: 26006713 PMCID: PMC4446624 DOI: 10.3390/md13053154] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 05/05/2015] [Accepted: 05/07/2015] [Indexed: 11/16/2022] Open
Abstract
Marine invertebrates including sponges, soft coral, tunicates, mollusks and bryozoan have proved to be a prolific source of bioactive natural products. Among marine-derived metabolites, terpenoids have provided a vast array of molecular architectures. These isoprenoid-derived metabolites also exhibit highly specialized biological activities ranging from nerve regeneration to blood-sugar regulation. As a result, intense research activity has been devoted to characterizing invertebrate terpenes from both a chemical and biological standpoint. This review focuses on the chemistry and biology of terpene metabolites isolated from the Red Sea ecosystem, a unique marine biome with one of the highest levels of biodiversity and specifically rich in invertebrate species.
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Affiliation(s)
- Mohamed Elamir F Hegazy
- Chemistry of Medicinal Plants Department, Center of Excellence for Advanced Sciences, National Research Centre, 33 El Bohouth st., Dokki, Giza, P.O. Box 12622, Egypt.
| | - Tarik A Mohamed
- Chemistry of Medicinal Plants Department, Center of Excellence for Advanced Sciences, National Research Centre, 33 El Bohouth st., Dokki, Giza, P.O. Box 12622, Egypt.
| | - Montaser A Alhammady
- National Institute of Oceanography and Fisheries, Red Sea Branch, Hurghada 84511, Egypt.
| | - Alaa M Shaheen
- Chemistry of Medicinal Plants Department, Center of Excellence for Advanced Sciences, National Research Centre, 33 El Bohouth st., Dokki, Giza, P.O. Box 12622, Egypt.
| | - Eman H Reda
- Chemistry of Medicinal Plants Department, Center of Excellence for Advanced Sciences, National Research Centre, 33 El Bohouth st., Dokki, Giza, P.O. Box 12622, Egypt.
| | - Abdelsamed I Elshamy
- Natural Compounds Chemistry Department, National Research Centre, 33 El Bohouth st. (former El Tahrir st.) Dokki, Giza, P.O. Box 12622, Egypt.
| | - Mina Aziz
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
| | - Paul W Paré
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409, USA.
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16
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Evaluation of Anti-melanoma Activities of (1 S,2 E,4 R,6 E,8 R,11 S,12 R)-8,12-epoxy-2,6-cembradiene-4,11-diol, (1 S,2 E,4 R,6 E,8 S,11 R,12 S)-8,11-epoxy-4,12-epoxy-2,6-cembradiene and (1 S,4 R,13 S)-cembra-2 E,7 E,11 E-trien-4,13-diol from the Red Sea soft coral Sarcophyton glaucum. Nat Prod Commun 2014. [DOI: 10.1177/1934578x1400900821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Three natural cembranoids from the Red Sea soft coral Sarcophyton glaucum namely (1 S,2 E,4 R,6 E,8 R,11 S,12 R)-8,12-epoxy-2,6-cembradiene-4,11-diol, (1 S,2 E,4 R,6 E,8 S,11 R,12 S)-8,11-epoxy-4,12-epoxy-2,6-cembradiene and (1 S,4 R,13 S)-cembra-2 E,7 E,11 E-trien-4,13-diol were evaluated for their inhibitory effects on mouse melanoma B16F10 cell growth. Results show that all the cembranoids strongly inhibit viability of melanoma cells particularly during 48–72 hrs treatment and also inhibit de novo DNA synthesis and PARP activity and stimulate fragmentation of DNA. (1 S,2 E,4 R,6 E,8 R,11 S,12 R)-8,12-epoxy-2,6-cembradiene-4,11-diol was not cytotoxic to monkey kidney CV-1 cells at the concentration that produces the anti-melanoma effects which indicates that this compound may be a good candidate for further development. (1 S,2 E,4 R,6 E,8 S,11 R,12 S)-8,11-epoxy-4,12-epoxy-2,6-cembradiene and (1 S,4 R,13 S)-cembra-2 E,7 E,11 E-trien-4,13-diol were found to be cytotoxic to healthy cells.
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17
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Gong KK, Tang XL, Zhang G, Cheng CL, Zhang XW, Li PL, Li GQ. Polyhydroxylated steroids from the South China Sea soft coral Sarcophyton sp. and their cytotoxic and antiviral activities. Mar Drugs 2013; 11:4788-98. [PMID: 24317470 PMCID: PMC3877887 DOI: 10.3390/md11124788] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 11/12/2013] [Accepted: 11/12/2013] [Indexed: 11/20/2022] Open
Abstract
Chemical investigation on the soft coral Sarcophyton sp. collected from the South China Sea yielded three new polyhydroxylated steroids, compounds (1-3), together with seven known ones (4-10). Their structures were established by extensive spectroscopic methods and comparison of their data with those of the related known compounds. All the isolates possessed the 3β,5α,6β-trihydroxylated steroidal nucleus. The cytotoxicities against selected HL-60, HeLa and K562 tumor cell lines and anti-H1N1 (Influenza A virus (IAV)) activities for the isolates were evaluated. Compounds 2, 3 and 5-8 exhibited potent activities against K562 cell lines with IC₅₀ values ranging from 6.4 to 10.3 μM. Compounds 1, 6-8 potently inhibited the growth of HL-60 tumor cell lines, and 6 also showed cytotoxicity towards HeLa cell lines. In addition, preliminary structure-activity relationships for the isolates are discussed. The OAc group at C-11 is proposed to be an important pharmacophore for their cytotoxicities in the 3β,5α,6β-triol steroids. Compounds 4 and 9 exhibited significant anti-H1N1 IAV activity with IC₅₀ values of 19.6 and 36.7 μg/mL, respectively.
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Affiliation(s)
- Kai-Kai Gong
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; E-Mails: (K.-K.G.); (G.Z.); (C.-L.C.); (X.-W.Z.)
| | - Xu-Li Tang
- College of Chemistry and Chemical Engineering, Ocean University of China, Songling Road 238, Qingdao 266100, China; E-Mail:
| | - Gang Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; E-Mails: (K.-K.G.); (G.Z.); (C.-L.C.); (X.-W.Z.)
| | - Can-Ling Cheng
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; E-Mails: (K.-K.G.); (G.Z.); (C.-L.C.); (X.-W.Z.)
| | - Xing-Wang Zhang
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; E-Mails: (K.-K.G.); (G.Z.); (C.-L.C.); (X.-W.Z.)
| | - Ping-Lin Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; E-Mails: (K.-K.G.); (G.Z.); (C.-L.C.); (X.-W.Z.)
| | - Guo-Qiang Li
- Key Laboratory of Marine Drugs, Chinese Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Yushan Road 5, Qingdao 266003, China; E-Mails: (K.-K.G.); (G.Z.); (C.-L.C.); (X.-W.Z.)
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