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Fukada R, Yamagishi Y, Nagasaka M, Osada D, Nimura K, Oshima I, Tsujimoto K, Kirihara M, Takizawa S, Kikuchi N, Ishii T, Kamada T. Antifouling Brominated Diterpenoids from Japanese Marine Red Alga Laurencia venusta Yamada. Chem Biodivers 2023; 20:e202300888. [PMID: 37468446 DOI: 10.1002/cbdv.202300888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/16/2023] [Accepted: 07/17/2023] [Indexed: 07/21/2023]
Abstract
The marine red algal genus Laurencia has abundant halogenated secondary metabolites, which exhibit novel structural types and possess various unique biological potentials, including antifouling activity. In this study, we report the isolation, structure elucidation, and antifouling activities of two novel brominated diterpenoids, aplysin-20 aldehyde (1), 13-dehydroxyisoaplysin-20 (2), and its congeners. We screened marine red alga Laurencia venusta Yamada for their antifouling activity against the mussel Mytilus galloprovincialis. Ethyl acetate extracts of L. venusta from Hiroshima and Chiba, Japan, were isolated and purified, and the compound structures were identified using 1D and 2D NMR, HR-APCI-MS, IR, and chemical synthesis. Seven secondary metabolites were identified, and their antifouling activities were evaluated. Compounds 1, 2, and aplysin-20 (3) exhibited strong activities against M. galloprovincialis. Therefore, these compounds can be explored as natural antifouling drugs.
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Affiliation(s)
- Ryosuke Fukada
- Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka, 437-8555, Japan
| | - Yukimasa Yamagishi
- Faculty of Life Science and Biotechnology, Fukuyama University, 1 Gakuen-cho, Fukuyama, Hiroshima, 729-0292, Japan
| | - Misaki Nagasaka
- Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Daiki Osada
- Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka, 437-8555, Japan
| | - Kazumi Nimura
- Shizuoka Prefectural Research Institute of Fishery and Ocean, 136-24 Iwashigashima, Yaizu, Shizuoka, 425-0032, Japan
| | - Iori Oshima
- Shizuoka Prefectural Research Institute of Fishery and Ocean, 136-24 Iwashigashima, Yaizu, Shizuoka, 425-0032, Japan
| | - Kazuki Tsujimoto
- Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka, 437-8555, Japan
| | - Masayuki Kirihara
- Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka, 437-8555, Japan
| | - Shinobu Takizawa
- Artificial Intelligence Research Center, SANKEN, Osaka University, Mihogaoka, Ibaraki, Osaka, 567-0047, Japan
| | - Norio Kikuchi
- Coastal Branch of Natural History Museum and Institute, Chiba, 123 Yoshio, Katsuura, Chiba, 299-5242, Japan
| | - Takahiro Ishii
- Department of Biosciences and Biotechnology, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara, Okinawa, 903-0213, Japan
| | - Takashi Kamada
- Faculty of Science and Technology, Shizuoka Institute of Science and Technology, 2200-2 Toyosawa, Fukuroi, Shizuoka, 437-8555, Japan
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Fakee J, Bolton JJ, Le Roes-Hill M, Durrell KA, Antunes E, Beukes DR. Antimicrobial Activity of the Secondary Metabolites Isolated from a South African Red Seaweed, Laurencia corymbosa. Molecules 2023; 28:molecules28052063. [PMID: 36903309 PMCID: PMC10003847 DOI: 10.3390/molecules28052063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/17/2023] [Accepted: 02/19/2023] [Indexed: 02/25/2023] Open
Abstract
South Africa's highly diverse marine biota includes several endemic marine red algae of the Laurencia genus. Cryptic species and morphological variability make the taxonomy of Laurencia plant challenging, and a record of the secondary metabolites isolated from South African Laurencia spp. can be used to assess their chemotaxonomic significance. In addition, the rapid development of resistance against antibiotics, coupled with the inherent ability of seaweeds to resist pathogenic infection, supported this first phycochemical investigation of Laurencia corymbosa J. Agardh. A new tricyclic keto-cuparane (7) and two new cuparanes (4, 5) were obtained alongside known acetogenins, halo-chamigranes, and additional cuparanes. These compounds were screened against Acinetobacter baumannii, Enterococcus faecalis, Escherichia coli, Staphylococcus aureus, and Candida albicans, with 4 exhibiting excellent activity against the Gram-negative A. baumanii (minimum inhibitory concentration (MIC) 1 μg/mL) strain.
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Affiliation(s)
- Jameel Fakee
- Faculty of Pharmacy, Rhodes University, Makhanda 6140, South Africa
| | - John J. Bolton
- Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa
| | - Marilize Le Roes-Hill
- Applied Microbial and Health Biotechnology Institute, Cape Peninsula University of Technology, Bellville 7535, South Africa
| | - Kim A. Durrell
- Applied Microbial and Health Biotechnology Institute, Cape Peninsula University of Technology, Bellville 7535, South Africa
| | - Edith Antunes
- Department of Chemistry, University of the Western Cape, Bellville 7535, South Africa
| | - Denzil R. Beukes
- School of Pharmacy, University of the Western Cape, Bellville 7535, South Africa
- Correspondence: ; Tel.: +27-21-959-2352
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Wang ZC, Wang Y, Huang LY, Liao XJ, Jiang ZH, Xu SH, Zhao BX. Two new halogenated metabolites from the red alga Laurencia sp. J Asian Nat Prod Res 2023; 25:61-67. [PMID: 35352584 DOI: 10.1080/10286020.2022.2056029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 03/16/2022] [Accepted: 03/16/2022] [Indexed: 06/14/2023]
Abstract
Two new halogenated metabolites, laurenhalogens A (1) and B (2), along with four known ones (3-6), were isolated from the red alga Laurencia sp. The structures of 1 and 2 were determined by the means of UV, IR, MS, NMR and X-ray diffraction analysis. In addition, the antibacterial activities of 1-6 were also evaluated.
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Affiliation(s)
- Zhao-Cong Wang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511400, China
| | - Yan Wang
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
- School of pharmaceutical sciences, Southern Medical University, Guangzhou 510515, China
| | - Li-Ying Huang
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511400, China
| | - Xiao-Jian Liao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511400, China
| | - Zhi-Hui Jiang
- Department of Pharmacy, Guangzhou General Hospital of Guangzhou Military Command, Guangzhou 510010, China
| | - Shi-Hai Xu
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511400, China
| | - Bing-Xin Zhao
- Department of Chemistry, College of Chemistry and Materials Science, Jinan University, Guangzhou 511400, China
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Harizani M, Diakaki DI, Perdikaris S, Roussis V, Ioannou E. New C15 Acetogenins from Two Species of Laurencia from the Aegean Sea. Molecules 2022; 27:molecules27061866. [PMID: 35335229 PMCID: PMC8953645 DOI: 10.3390/molecules27061866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Revised: 03/06/2022] [Accepted: 03/10/2022] [Indexed: 11/17/2022] Open
Abstract
The chemical diversity of the approximately 1,200 natural products isolated from red algae of the genus Laurencia, in combination with the wide range of their biological activities, have placed species of Laurencia in the spotlight of marine chemists’ attention for over 60 years. The chemical investigation of the organic (CH2Cl2/MeOH) extracts of Laurencia microcladia and Laurencia obtusa, both collected off the coasts of Tinos island in the Aegean Sea, resulted in the isolation of 32 secondary metabolites, including 23 C15 acetogenins (1–23), 7 sesquiterpenes (24–30) and 2 diterpenes (31 and 32). Among them, six new C15 acetogenins, namely 10-acetyl-sagonenyne (2), cis-sagonenyne (3), trans-thuwalenyne C (4), tinosallene A (11), tinosallene B (12) and obtusallene XI (17), were identified and their structures were elucidated by extensive analysis of their spectroscopic data. Compounds 1–3, 5–11, 13 and 15–32 were evaluated for their antibacterial activity against Staphylococcus aureus and Escherichia coli.
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Affiliation(s)
- Maria Harizani
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Dafni-Ioanna Diakaki
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Stamatios Perdikaris
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Vassilios Roussis
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Efstathia Ioannou
- Section of Pharmacognosy and Chemistry of Natural Products, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
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dos Santos GS, Miyasato PA, Stein EM, Colepicolo P, Wright AD, Pereira CADB, Falkenberg M, Nakano E. Algal-Derived Halogenated Sesquiterpenes from Laurencia dendroidea as Lead Compounds in Schistosomiasis Environmental Control. Mar Drugs 2022; 20:111. [PMID: 35200640 PMCID: PMC8874501 DOI: 10.3390/md20020111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/20/2022] [Accepted: 01/22/2022] [Indexed: 01/27/2023] Open
Abstract
Schistosomiasis has been controlled for more than 40 years with a single drug, praziquantel, and only one molluscicide, niclosamide, raising concern of the possibility of the emergence of resistant strains. However, the molecular targets for both agents are thus far unknown. Consequently, the search for lead compounds from natural sources has been encouraged due to their diverse structure and function. Our search for natural compounds with potential use in schistosomiasis control led to the identification of an algal species, Laurencia dendroidea, whose extracts demonstrated significant activity toward both Schistosoma mansoni parasites and their intermediate host snails Biomphalaria glabrata. In the present study, three seaweed-derived halogenated sesquiterpenes, (-)-elatol, rogiolol, and obtusol are proposed as potential lead compounds for the development of anthelminthic drugs for the treatment of and pesticides for the environmental control of schistosomiasis. The three compounds were screened for their antischistosomal and molluscicidal activities. The screening revealed that rogiolol exhibits significant activity toward the survival of adult worms, and that all three compounds showed activity against S. mansoni cercariae and B. glabrata embryos. Biomonitored fractioning of L. dendroidea extracts indicated elatol as the most active compound toward cercariae larvae and snail embryos.
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Affiliation(s)
- Guilherme Senna dos Santos
- Laboratory of Parasitology, Butantan Institute, São Paulo 05503-000, SP CEP, Brazil; (G.S.d.S.); (P.A.M.)
| | - Patrícia Aoki Miyasato
- Laboratory of Parasitology, Butantan Institute, São Paulo 05503-000, SP CEP, Brazil; (G.S.d.S.); (P.A.M.)
| | - Erika Mattos Stein
- Biochemistry Department, Chemistry Institute, USP—Universidade de São Paulo, São Paulo 05508-00, SP, Brazil; (E.M.S.); (P.C.)
| | - Pio Colepicolo
- Biochemistry Department, Chemistry Institute, USP—Universidade de São Paulo, São Paulo 05508-00, SP, Brazil; (E.M.S.); (P.C.)
| | - Anthony D. Wright
- DKI College of Pharmacy, University of Hawaii at Hilo, Hilo, HI 96720, USA;
- Right Consulting, 15 Amauulu Road, Hilo, HI 96720, USA
| | | | - Miriam Falkenberg
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis 88040-970, SC, Brazil;
| | - Eliana Nakano
- Laboratory of Parasitology, Butantan Institute, São Paulo 05503-000, SP CEP, Brazil; (G.S.d.S.); (P.A.M.)
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Haniffa HM, Ranjith H, Dharmaratne W, Yasin Mohammad M, Choudhary MI. Allelopathic activity of some Sri Lankan seaweed extracts and the isolation of a new brominated nonaromatic isolaurene type sesquiterpene from red alga Laurencia heteroclada harvey. Nat Prod Res 2021; 35:2020-2027. [PMID: 31429321 DOI: 10.1080/14786419.2019.1655023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 07/22/2019] [Accepted: 07/30/2019] [Indexed: 10/26/2022]
Abstract
This study investigated the allelopathic activity of sixteen seaweed extracts using lettuce seed germination bioassay. The results of the preliminary investigation suggested that the methanol extracts of seven seaweeds demonstrated significant properties inhibitory to seed germination. In addition, chemical investigation of an active extract of the alleopathic Laurencia heteroclada Harvey led to the isolation of four known compounds as well as a new brominated nonaromatic isolaurene type sesquiterpene. The structural elucidation of pure compounds was carried out using spectroscopic methods and by comparison with literature. As seaweeds are highly abundant around Sri Lanka, they could be developed as an ecofriendly natural herbicide in their crude form.
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Affiliation(s)
- Haroon M Haniffa
- Natural Products Programme, Institute of Fundamental Studies, Kandy, Sri Lanka
- Faculty of Applied Sciences, South Eastern University of Sri Lanka, Oluvil, Sri Lanka
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | | | - W Dharmaratne
- Natural Products Programme, Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Mohammad Yasin Mohammad
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - M Iqbal Choudhary
- H.E.J. Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
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Pereira RC, Nocchi N, Souto ML, Fernández JJ, Norte M, Duarte HM, Soares AR. The sea-hare Aplysia brasiliana promotes induction in chemical defense in the seaweed Laurencia dendroidea and in their congeneric neighbors. Plant Physiol Biochem 2020; 154:295-303. [PMID: 32590291 DOI: 10.1016/j.plaphy.2020.05.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 05/12/2020] [Accepted: 05/19/2020] [Indexed: 06/11/2023]
Abstract
Inducible chemical defenses are more common in temperate seaweeds than tropical ones, and are directly detected by increase of chemical contents, or indirectly by differential consumption of live seaweed tissues or artificial food with algal extracts by herbivores. In general, seaweed-induced chemical defense occur between 11 and 20 days after both simulated/artificial or direct herbivory. Here, we used experimental procedures to assess induced chemical defense in the tropical red seaweed Laurencia dendroidea as response to direct grazing, chemical cues from grazed conspecific neighbors and only presence of herbivores. Chemical defenses were analyzed by detecting the palatability of artificial food containing L. dendroidea extracts offered to Aplysia brasiliana and by comparative analyses of extracts from this seaweed by Gas Chromatography/Mass Spectroscopy, as well as metabolomic data analysis by Principal Component Analysis. Our results revealed that direct grazing by A. brasiliana induced a rapid (after 48 h) response among individuals of L. dendroidea, as did waterborne chemical cues from grazed conspecifics, but the presence of sea hare alone did not elicit a response. Increased resistance to grazing was accompanied by significative changes in sesquiterpene metabolomic chemical profile, revealing that induced defense: may be more widespread among seaweeds, independent of latitude; can involve changes in other classes of substances besides phlorotannins or not only the increase in the content of a single compound; and may be a rapid and ecologically coherent response to consumers. In addition, the importance of incorporating the metabolomic approach when examining inducible chemical defense in seaweeds is also emphasized.
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Affiliation(s)
- Renato C Pereira
- Universidade Federal Fluminense,Instituto de Biologia, Departamento de Biologia Marinha, Morro do Valonguinho s/n, 24020-141,Niterói, Brasil.
| | - Nathália Nocchi
- Universidade Federal Fluminense,Programa de Pós-graduação em Dinâmica dos Oceanos e da Terra, Avenida General Milton Tavares de Souza, Campus da Praia Vermelha, 24210-346, Niterói,Brasil; Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), NUPEM, Universidade Federal do Rio de Janeiro - Campus Professor Aloísio Teixeira, Av. São José do Barreto, 764, 27965 - 045, Macaé, RJ, Brasil
| | - María L Souto
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avda. Astrofisico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain
| | - José J Fernández
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avda. Astrofisico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain
| | - Manuel Norte
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avda. Astrofisico Francisco Sánchez 2, 38206, La Laguna, Tenerife, Spain
| | - Heitor M Duarte
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), NUPEM, Universidade Federal do Rio de Janeiro - Campus Professor Aloísio Teixeira, Av. São José do Barreto, 764, 27965 - 045, Macaé, RJ, Brasil
| | - Angélica R Soares
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), NUPEM, Universidade Federal do Rio de Janeiro - Campus Professor Aloísio Teixeira, Av. São José do Barreto, 764, 27965 - 045, Macaé, RJ, Brasil
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Hu ZB, Yu XQ, Wang B, Liu AH, Zhao TS, Guo YW, Huang HL, Mao SC. Structurally diverse halosesquiterpenoids from the red alga Laurencia composita Yamada. Fitoterapia 2020; 146:104716. [PMID: 32866541 DOI: 10.1016/j.fitote.2020.104716] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 08/24/2020] [Accepted: 08/25/2020] [Indexed: 11/19/2022]
Abstract
A phytochemical investigation on the MeOH extract of the red alga Laurencia composita Yamada led to the discovery of six new highly halogenated sesquiterpenoids, including two bisabolane-type sesquiterpenoids (1 and 2), one nerolidol derivative (7), and three chamigrane-type sesquiterpenoids (9, 10, and 18), together with 13 known sesquiterpenoids. Their structures, including relative configuration, were elucidated by extensive spectroscopic analysis, and by comparison with data for related known compounds. The absolute configuration at C-10 of laurecomposin A (1) was determined by the modified Mosher's method. Halonerolidol (7) is the first naturally occurring halogenated nerolidol derivative, while compositacin L (9) represents the third example of chamigranes having a C-10 carbonyl group. Antifungal, antibacterial, and receptor tyrosine kinase inhibitory activities of these isolates were evaluated. The results showed that compounds 1-3 and 5 exhibited significant antifungal activity against Microsporum gypseum (Cmccfmza) with MIC values of 4, 8, 8, and 4 μg/mL, respectively. Additionally, compounds 1-3 and 5 also displayed promising antibacterial activity against Gram-positive bacteria Staphylococcus aureus Newman strain with MIC values ranging from 10.9 to 26.8 μg/mL.
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Affiliation(s)
- Zhi-Biao Hu
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Xiao-Qing Yu
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Bin Wang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Ai-Hong Liu
- Center of Analysis and Testing, Nanchang University, Nanchang 330047, People's Republic of China
| | - Tian-Sheng Zhao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Yue-Wei Guo
- State key laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Hui-Lian Huang
- College of Pharmacy, Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, People's Republic of China
| | - Shui-Chun Mao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China.
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Kamada T, Phan CS, Vairappan CS. Nangallenes A and B, halogenated nonterpenoid C 15-acetogenins from the Bornean red alga Laurencia nangii. J Asian Nat Prod Res 2019; 21:241-247. [PMID: 29281900 DOI: 10.1080/10286020.2017.1417265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 12/11/2017] [Indexed: 06/07/2023]
Abstract
Two new halogenated nonterpenoids C15-acetogenins, nangallenes A-B (1-2), together with two known halogenated compounds itomanallene A (3) and 2,10-dibromo-3-chloro-α-chamigrene (4), were isolated and identified from the organic extract of the marine red alga Laurencia nangii Masuda collected from the coastal waters in Semporna, Borneo. Their structures were established by means of spectroscopic analysis including IR, high-resolution electrospray ionization mass spectrometry (HRESI-MS), and 1D and 2D NMR techniques. All these metabolites were submitted for the antifungal assay against four species of selected marine fungi. Compounds 1-4 showed potent activity against Haliphthoros sabahensis and Lagenidium thermophilum.
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Affiliation(s)
- Takashi Kamada
- a Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation , Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
| | - Chin-Soon Phan
- a Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation , Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
| | - Charles S Vairappan
- a Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation , Universiti Malaysia Sabah , Kota Kinabalu 88400 , Malaysia
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García-Davis S, Sifaoui I, Reyes-Batlle M, Viveros-Valdez E, Piñero JE, Lorenzo-Morales J, Fernández JJ, Díaz-Marrero AR. Anti- Acanthamoeba Activity of Brominated Sesquiterpenes from Laurencia johnstonii. Mar Drugs 2018; 16:md16110443. [PMID: 30423882 PMCID: PMC6266398 DOI: 10.3390/md16110443] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 11/07/2018] [Accepted: 11/09/2018] [Indexed: 11/16/2022] Open
Abstract
Focused on our interest to develop novel antiparasistic agents, the present study was aimed to evaluate the biological activity of an extract of Laurencia johnstonii collected in Baja California Sur, Mexico, against an Acantamoeba castellanii Neff strain. Bioassay-guided fractionation allowed us to identify the amoebicidal diastereoisomers α-bromocuparane (4) and α-isobromocuparane (5). Furthermore, bromination of the inactive laurinterol (1) and isolaurinterol (2) yielded four halogenated derivatives, (6)⁻(9), which improved the activity of the natural sesquiterpenes. Among them, the most active compound was 3α-bromojohnstane (7), a sesquiterpene derivative which possesses a novel carbon skeleton johnstane.
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Affiliation(s)
- Sara García-Davis
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avda. Astrofísico F. Sánchez, 2, 38206 La Laguna, Tenerife, Spain.
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León (UANL), Av. Pedro de Alba s/n, 66450 San Nicolás de los Garza, Nuevo León, Mexico.
| | - Ines Sifaoui
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Islas Canarias, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
| | - María Reyes-Batlle
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Islas Canarias, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
| | - Ezequiel Viveros-Valdez
- Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León (UANL), Av. Pedro de Alba s/n, 66450 San Nicolás de los Garza, Nuevo León, Mexico.
| | - José E Piñero
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Islas Canarias, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
| | - Jacob Lorenzo-Morales
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Islas Canarias, Universidad de La Laguna, Av. Astrofísico Francisco Sánchez s/n, 38206 La Laguna, Tenerife, Spain.
| | - José J Fernández
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avda. Astrofísico F. Sánchez, 2, 38206 La Laguna, Tenerife, Spain.
- Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avda. Astrofísico F. Sánchez, 2, 38206 La Laguna, Tenerife, Spain.
| | - Ana R Díaz-Marrero
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avda. Astrofísico F. Sánchez, 2, 38206 La Laguna, Tenerife, Spain.
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11
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Cen-Pacheco F, Pérez Manríquez C, Luisa Souto M, Norte M, Fernández JJ, Hernández Daranas A. Marine Longilenes, Oxasqualenoids with Ser-Thr Protein Phosphatase 2A Inhibition Activity. Mar Drugs 2018; 16:md16040131. [PMID: 29673138 PMCID: PMC5923418 DOI: 10.3390/md16040131] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 04/11/2018] [Accepted: 04/14/2018] [Indexed: 11/16/2022] Open
Abstract
The red seaweed Laurencia viridis is a rich source of oxygenated secondary metabolites that were derived from squalene. We report here the structures of three novel compounds, (+)-longilene peroxide (1), longilene (2), and (+)-prelongilene (3) that were isolated from this alga, in addition to other substances, 4 and 5, resulting from their acid-mediated degradation. The effect of compounds 1 and 3 against Ser-Thr protein phosphatase type 2A (PP2A) was evaluated, showing that (+)-longilene peroxide (1) inhibited PP2A (IC50 11.3 μM). In order to explain the interaction between PP2A and compounds 1 and 3, molecular docking simulations onto the PP2A enzyme-binding region were used.
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Affiliation(s)
- Francisco Cen-Pacheco
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
- Facultad de Bioanálisis, Campus-Veracruz, Universidad Veracruzana, Veracruz 91700, Mexico.
| | - Claudia Pérez Manríquez
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
- Departamento de Botánica, Facultad de Ciencias Naturales y Oceanográficas, Universidad de Concepción, Barrio Universitario, Concepción, Región del Biobío 4030000, Chile.
| | - María Luisa Souto
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
- Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
| | - Manuel Norte
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
- Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
| | - José Javier Fernández
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
- Departamento de Química Orgánica, Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
| | - Antonio Hernández Daranas
- Instituto Universitario de Bio-Orgánica Antonio González (IUBO AG), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Universidad de La Laguna (ULL), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
- Instituto de Productos Naturales y Agrobiología (IPNA), Consejo Superior de Investigaciones Científicas (CSIC), Avenida Astrofísico Francisco Sánchez 2, 38206 Tenerife, Spain.
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12
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Nuzzo G, Gomes BA, Amodeo P, Matthews-Cascon H, Cutignano A, Costa-Lotufo LV, Monteiro FAC, Pessoa ODL, Fontana A. Isolation of Chamigrene Sesquiterpenes and Absolute Configuration of Isoobtusadiene from the Brittle Star Ophionereis reticulata. J Nat Prod 2017; 80:3049-3053. [PMID: 29112445 DOI: 10.1021/acs.jnatprod.7b00510] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The chemical study of the Brazilian brittle star Ophionereis reticulata led to the isolation of three chamigrene sesquiterpenes, including the partially characterized isoobtusadiene (1), its unreported acetyl derivative (2), and the known (+)-elatol (3). The complete elucidation of the structures 1 and 2 was accomplished by 1D and 2D NMR spectroscopy. The first assignment of the absolute configuration of the isoobtusadiene skeleton is suggested as 6S,9R,10S on the basis of the NMR analysis of the Mosher's ester derivatives of 1 and the ECD study of the acetyl derivative 2. Chamigrenes are typical constituents of Laurencia red algae. O. reticulata is a predator with a preference for algae. Thus, the origin of these metabolites can be likely ascribed to diet.
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Affiliation(s)
- Genoveffa Nuzzo
- CNR, Istituto di Chimica Biomolecolare, Bio-Organic Chemistry Unit , 80078 Pozzuoli, Naples, Italy
| | - Bruno A Gomes
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará , 60021-970, Fortaleza, CE, Brazil
| | - Pietro Amodeo
- CNR, Istituto di Chimica Biomolecolare, Bio-Organic Chemistry Unit , 80078 Pozzuoli, Naples, Italy
| | - Helena Matthews-Cascon
- Departamento de Biologia, Centro de Ciências, Universidade Federal do Ceará , 60021-970, 60455-760, Fortaleza, CE, Brazil
| | - Adele Cutignano
- CNR, Istituto di Chimica Biomolecolare, Bio-Organic Chemistry Unit , 80078 Pozzuoli, Naples, Italy
| | - Leticia V Costa-Lotufo
- Departamento de Farmacologia, Instituto de Ciências Biomédicas, Universidade de São Paulo , 05508-010 São Paulo, SP, Brazil
| | - Felipe A C Monteiro
- Instituto Federal de Educação, Ciência e Tecnologia , 63475-000, Jaguaribe, CE, Brazil
| | - Otilia Deusdenia L Pessoa
- Departamento de Química Orgânica e Inorgânica, Centro de Ciências, Universidade Federal do Ceará , 60021-970, Fortaleza, CE, Brazil
| | - Angelo Fontana
- CNR, Istituto di Chimica Biomolecolare, Bio-Organic Chemistry Unit , 80078 Pozzuoli, Naples, Italy
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13
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Bawakid NO, Alarif WM, Ismail AI, El-Hefnawy ME, Al-Footy KO, Al-Lihaibi SS. Bio-active maneonenes and isomaneonene from the red alga Laurencia obtusa. Phytochemistry 2017; 143:180-185. [PMID: 28822320 DOI: 10.1016/j.phytochem.2017.08.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 05/17/2017] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
Three previously undescribed compounds, maneonenes and isomaneonene derivatives; in addition to five known compounds, two cuparene, one chamigrene, and two cis-maneonenes were isolated from the Red Sea red alga Laurencia obtusa. The chemical structures of all unknown metabolites were characterized employing spectroscopic methods and then were further confirmed by single crystal X-ray analysis. Jeddahenyne A has C-5-C-12 etheric linkage and C-13-C-14 carbon-carbon double bond; Jeddahenyne B has in addition to the aforementioned etheric linkage a C-13 carbonyl function and absence of halogenation, unusual features for the maneonenes while 12-debromo-12-methoxy isomaneonene A shows unrecorded methoxylation at C-12. The apoptosis-inducing or inhibiting effect of both compounds on apoptosis of peripheral blood neutrophils was studied.
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Affiliation(s)
- Nahed O Bawakid
- Department of Chemistry, Faculty of Science, King Abdulaziz University, PO. Box 80203, Jeddah 21589, Saudi Arabia
| | - Walied M Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, PO. Box 80207, Jeddah 21589, Saudi Arabia.
| | - Ali I Ismail
- Department of Chemistry, Rabigh College of Science and Arts, King Abdulaziz University, P.O. Box 344, Rabigh 21911, Saudi Arabia
| | - Mohamed E El-Hefnawy
- Department of Chemistry, Rabigh College of Science and Arts, King Abdulaziz University, P.O. Box 344, Rabigh 21911, Saudi Arabia; Department of Chemistry, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Khalid O Al-Footy
- Department of Chemistry, Faculty of Science, King Abdulaziz University, PO. Box 80203, Jeddah 21589, Saudi Arabia
| | - Sultan S Al-Lihaibi
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, PO. Box 80207, Jeddah 21589, Saudi Arabia
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14
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Bawakid NO, Alarif WM, Alburae NA, Alorfi HS, Al-Footy KO, Al-Lihaibi SS, Ghandourah MA. Isolaurenidificin and Bromlaurenidificin, Two New C 15-Acetogenins from the Red Alga Laurencia obtusa. Molecules 2017; 22:E807. [PMID: 28505125 PMCID: PMC6154321 DOI: 10.3390/molecules22050807] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Revised: 05/10/2017] [Accepted: 05/10/2017] [Indexed: 12/01/2022] Open
Abstract
Chromatographic fractionation of the CH₂Cl₂/MeOH extract of the Red Sea red alga Laurencia obtusa gave two new hexahydrofuro[3,2-b]furan-based C15-acetogenins, namely, isolaurenidificin (1) and bromlaurenidificin (2). The chemical structures were elucidated based on extensive analyses of their spectral data. Compounds 1 and 2 showed no toxicity (LC50 > 12 mM) using Artemia salina as test organism. Both compounds showed weak cytotoxicity against A549, HepG-2, HCT116, MCF-7, and PC-3 cells, however, they exhibited a relatively potent cytotoxic activity against peripheral blood neutrophils. This can be attributed partly to induction of apoptosis.
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Affiliation(s)
- Nahed O Bawakid
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
| | - Walied M Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, P.O. Box 80207, Jeddah 21589, Saudi Arabia.
| | - Najla A Alburae
- Department of Biology, Faculty of Sciences, King Abdulaziz University, P.O. Box 80207, Jeddah 21589, Saudi Arabia.
| | - Hajer S Alorfi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
| | - Khalid O Al-Footy
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia.
| | - Sultan S Al-Lihaibi
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, P.O. Box 80207, Jeddah 21589, Saudi Arabia.
| | - Mohamed A Ghandourah
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, P.O. Box 80207, Jeddah 21589, Saudi Arabia.
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15
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Esselin H, Sutour S, Liberal J, Cruz MT, Salgueiro L, Siegler B, Freuze I, Castola V, Paoli M, Bighelli A, Tomi F. Chemical Composition of Laurencia obtusa Extract and Isolation of a New C 15-Acetogenin. Molecules 2017; 22:molecules22050779. [PMID: 28492496 PMCID: PMC6154620 DOI: 10.3390/molecules22050779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 04/27/2017] [Accepted: 05/06/2017] [Indexed: 11/21/2022] Open
Abstract
A new C15-acetogenin, sagonenyne (20), exhibiting an unusual single tetrahydropyran ring was isolated from an ethyl acetate extract of Laurencia obtusa collected on the Corsican coastline. Its structure was established by detailed NMR spectroscopic analysis, mass spectrometry, and comparison with literature data. Twenty-three known compounds were identified in the same extract by means of column chromatography steps, using a 13C-NMR computer aided method developed in our laboratory. In addition to sesquiterpenes, which represent the main chemical class of this extract, diterpenes, sterols, and C15-acetogenins were identified. The crude extract was submitted to a cytotoxicity assay and was particularly active against THP-1 cells, a human leukemia monocytic cell line.
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Affiliation(s)
- Hélène Esselin
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000 Ajaccio, France.
| | - Sylvain Sutour
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000 Ajaccio, France.
| | - Joana Liberal
- CNC.IBILI/Faculty of Pharmacy, University of Coimbra, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal.
- Escola Superior de Saúde Dr. Lopes Dias, Instituto Politécnico de Castelo Branco, Campus da Talagueira, 6000-767 Castelo Branco, Portugal.
| | - Maria Teresa Cruz
- CNC.IBILI/Faculty of Pharmacy, University of Coimbra, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal.
| | - Ligia Salgueiro
- CNC.IBILI/Faculty of Pharmacy, University of Coimbra, Health Sciences Campus, Azinhaga de S. Comba, 3000-548 Coimbra, Portugal.
| | - Benjamin Siegler
- Plateforme d'Ingénierie et d'Analyses Moléculaires, Université d'Angers, UFR Sciences, 49000 Angers, France.
| | - Ingrid Freuze
- Plateforme d'Ingénierie et d'Analyses Moléculaires, Université d'Angers, UFR Sciences, 49000 Angers, France.
| | - Vincent Castola
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000 Ajaccio, France.
| | - Mathieu Paoli
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000 Ajaccio, France.
| | - Ange Bighelli
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000 Ajaccio, France.
| | - Félix Tomi
- Université de Corse-CNRS, UMR 6134 SPE, Equipe Chimie et Biomasse, Route des Sanguinaires, 20000 Ajaccio, France.
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16
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Yu XQ, Jiang CS, Zhang Y, Sun P, Kurtán T, Mándi A, Li XL, Yao LG, Liu AH, Wang B, Guo YW, Mao SC. Compositacins A-K: Bioactive chamigrane-type halosesquiterpenoids from the red alga Laurencia composita Yamada. Phytochemistry 2017; 136:81-93. [PMID: 28110957 DOI: 10.1016/j.phytochem.2017.01.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Revised: 12/26/2016] [Accepted: 01/13/2017] [Indexed: 06/06/2023]
Abstract
Eleven highly halogenated chamigrane sesquiterpenoids, compositacins A-K, including one unusual rearranged chamigrane sesquiterpenoid, compositacin A, were isolated from the red alga Laurencia composita Yamada, along with seven known structural analogues. Compositacins B and D are the first examples of chamigranes bearing an ether bridge involving C-5/C-9 and C-3/C-5, respectively, while compositacins B and C represent the first chamigranes with a C-10 carbonyl group. Their structures were elucidated on the basis of extensive spectroscopic analysis. The absolute configuration of compositacin B was determined by ECD calculation, whereas the absolute configurations of compositacins A and C-L were proposed on biosynthetic grounds by comparison to compositacin B and the related known sesquiterpenoids johnstonol and yicterpene A. We also suggest that the structure of the previously reported sesquiterpenoid laurokamin A should be revised. Cytotoxicity and antifungal activity of these isolates were also investigated. The results showed that compositacin G exhibited good antifungal activity against Microsporum gypseum (Cmccfmza) with a MIC80 value of 4 μg/mL relative to positive controls. Four of the chamigrane halosesquiterpenoids showed marginal cytotoxicity against the A-549 human lung adenocarcinoma cell line with IC50 values ranging from 48.6 to 85.2 μM.
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Affiliation(s)
- Xiao-Qing Yu
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Chang-Sheng Jiang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Yi Zhang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Pan Sun
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen, PO Box 400, H-4002 Debrecen, Hungary
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen, PO Box 400, H-4002 Debrecen, Hungary
| | - Xiao-Lu Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Repulic of China
| | - Li-Gong Yao
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Repulic of China
| | - Ai-Hong Liu
- Center of Analysis and Testing, Nanchang University, Nanchang 330047, People's Repulic of China
| | - Bin Wang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Repulic of China
| | - Shui-Chun Mao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Repulic of China.
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17
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Dziwornu GA, Caira MR, Mare JADL, Edkins AL, Bolton JJ, Beukes DR, Sunassee SN. Isolation, Characterization and Antiproliferative Activity of New Metabolites from the South African Endemic Red Algal Species Laurencia alfredensis. Molecules 2017; 22:molecules22040513. [PMID: 28333106 PMCID: PMC6154597 DOI: 10.3390/molecules22040513] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 03/21/2017] [Accepted: 03/21/2017] [Indexed: 11/23/2022] Open
Abstract
The marine red algae of the genus Laurencia have been widely studied for their structurally diverse and biologically active secondary metabolites. We report here the natural product investigation of the organic extract of a newly identified South African endemic species, Laurencia alfredensis. A sequence of column chromatography, preparative TLC and normal phase HPLC resulted in the isolation of eleven compounds comprising three labdane-type diterpenes (1–3), four polyether triterpenes (4–7), three cholestane-type ecdysteroids (8–10) and a glycolipid (11). Compounds 1–3, 5–8 and 10 have not previously been reported, while compound 9 is reported here for the first time from a natural source and the known compound 11 isolated for the first time from the genus Laurencia. The structural elucidation and the relative configuration assignments of the compounds were accomplished by extensive use of 1D- and 2D-NMR, HR-ESI-MS, UV and IR spectroscopic techniques, while the absolute configuration of compound 1 was determined by single-crystal X-ray diffraction analysis. All compounds were evaluated against the MDA-MB-231 breast and HeLa cervical cancer cell lines. Compound 2 exhibited low micromolar antiproliferative activity (IC50 = 9.3 µM) against the triple negative breast carcinoma and compound 7 was similarly active (IC50 = 8.8 µM) against the cervical cancer cell line.
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Affiliation(s)
- Godwin A Dziwornu
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa.
| | - Mino R Caira
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa.
| | - Jo-Anne de la Mare
- Biomedical Biotechnology Research Unit, Department of Biochemistry and Microbiology, Rhodes University, Grahamstown 6140, South Africa.
| | - Adrienne L Edkins
- Biomedical Biotechnology Research Unit, Department of Biochemistry and Microbiology, Rhodes University, Grahamstown 6140, South Africa.
| | - John J Bolton
- Department of Biological Sciences, University of Cape Town, Rondebosch 7701, South Africa.
- Marine Research (Ma-Re) Institute, University of Cape Town, Rondebosch 7701, South Africa.
| | - Denzil R Beukes
- School of Pharmacy Department of Pharmaceutical Chemistry, University of the Western Cape, Bellville 7535, South Africa.
| | - Suthananda N Sunassee
- Department of Chemistry, University of Cape Town, Rondebosch 7701, South Africa.
- Marine Research (Ma-Re) Institute, University of Cape Town, Rondebosch 7701, South Africa.
- South African Medical Research Council Drug Discovery and Development Research Unit, University of Cape Town, Rondebosch 7701, South Africa.
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18
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Li XL, Kurtán T, Hu JC, Mándi A, Li J, Li XW, Guo YW. Structural and Stereochemical Studies of Laurokamurols A-C, Uncommon Bis-sesquiterpenoids from the Chinese Red Alga Laurencia okamurai Yamada. J Agric Food Chem 2017; 65:1550-1555. [PMID: 28173704 DOI: 10.1021/acs.jafc.6b05238] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Three novel heterodimeric laurane-type sesquiterpenoids, laurokamurols A-C (1-3), along with eight known related monomeric ones (4-11) were isolated from the East China Sea red alga Laurencia okamurai Yamada. The absolute configurations of the new bis-sesquitepenoids, especially their axial chirality, were determined by extensive spectroscopic analyses and TDDFT-ECD method. All of the new compounds showed promising PTP1B inhibitory activities with IC50 values comparable to the positive control, indicating them as potential food additives or pharmaceutical drug leads toward obesity or diabetes.
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Affiliation(s)
- Xiao-Lu Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , No. 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
- University of Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing 100049, China
| | - Tibor Kurtán
- Department of Organic Chemistry, University of Debrecen , Egyetemtér 1, P.O. Box 400, 4002 Debrecen, Hungary
| | - Jun-Chi Hu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , No. 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
- University of Chinese Academy of Sciences , No. 19A Yuquan Road, Beijing 100049, China
| | - Attila Mándi
- Department of Organic Chemistry, University of Debrecen , Egyetemtér 1, P.O. Box 400, 4002 Debrecen, Hungary
| | - Jia Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , No. 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
| | - Xu-Wen Li
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , No. 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 , No. 555 Zu Chong Zhi Road, Zhangjiang Hi-Tech Park, Shanghai 201203, China
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19
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da Silva ACR, Ferreira LG, Duarte MER, Fujii MT, Sanchez EF, Noseda MD, Fuly AL. Protective Effect of the Sulfated Agaran Isolated from the Red Seaweed Laurencia aldingensis Against Toxic Effects of the Venom of the Snake, Lachesis muta. Mar Biotechnol (NY) 2016; 18:619-629. [PMID: 27888371 DOI: 10.1007/s10126-016-9722-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2015] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
Snakebite is a serious occupational hazard affecting mainly rural populations of tropical and subtropical developing countries. Lachesis muta (Bushmaster) bites are extremely serious but are rarely reported in the literature. Bushmaster envenomings are characterized by intense local pain, edema, neurotoxicity, hypotension, local hemorrhage, and dramatic systemic alterations. Antivenom treatment has regularly been used for more than a century; however, it fails to neutralize local tissue damage and hemorrhage, leading to morbidity or disabilities in victims. Thus, the production and clinical use of antivenom must be improved. The present work characterizes, for the first time, a sulfated polysaccharide from the red seaweed, Laurencia aldingensis, including its neutralizing effect on some toxic activities of L. muta venom. Chemical and spectroscopic analyses showed that L. aldingensis produces sulfated agarans with the A-units partially C-2 sulfated or 6-O-methoxylated presetting the B-units in the cyclized (3,6-anhydro-α-L-galactose) or in the non-cyclized form (α-L-galactose). The latter is significantly substituted by sulfate groups on C-6. In vitro and in vivo assays showed that this sulfated agaran inhibited hemolysis, coagulation, proteolysis, edema, and hemorrhage of L. muta venom. Neutralization of hemorrhagic activity was also observed when the agaran was administered by different routes and after or before the venom injection. Furthermore, the agaran blocked the edema caused by a phospholipase A2 isolated from the L. muta venom. Experimental evidence therefore indicates that the sulfated agaran of L. aldingensis has potential to aid antivenom therapy of accidents caused by L. muta venom and may help to develop more effective antivenom treatments of snake bites in general.
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Affiliation(s)
- Ana Cláudia Rodrigues da Silva
- Department of Molecular and Cellular Biology, Federal Fluminense University, Niterói, Rio de Janeiro, CEP 24020-141, Brazil
| | - Luciana Garcia Ferreira
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Paraná, CEP 81531-980, Brazil
| | - Maria Eugênia Rabello Duarte
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Paraná, CEP 81531-980, Brazil.
| | - Mutue Toyota Fujii
- Secretary of São Paulo State for Environment, Institute of Botany, São Paulo, SP, CEP 04301-012, Brazil
| | - Eladio Flores Sanchez
- Laboratory of Biochemistry of Proteins from Animal Venoms, Research and Development Center, Ezequiel Dias Foundation, Belo Horizonte, Minas Gerais, CEP 30510-010, Brazil
| | - Miguel Daniel Noseda
- Department of Biochemistry and Molecular Biology, Federal University of Paraná, Curitiba, Paraná, CEP 81531-980, Brazil
| | - André Lopes Fuly
- Department of Molecular and Cellular Biology, Federal Fluminense University, Niterói, Rio de Janeiro, CEP 24020-141, Brazil.
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Lajili S, Deghrigue M, Bel Haj Amor H, Muller CD, Bouraoui A. In vitro immunomodulatory activity and in vivo anti-inflammatory and analgesic potential with gastroprotective effect of the Mediterranean red alga Laurencia obtusa. Pharm Biol 2016; 54:2486-2495. [PMID: 27096253 DOI: 10.3109/13880209.2016.1160937] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
CONTEXT Red algae have been recognized as a rich natural source of compounds possessing interesting biological and pharmacological activities. OBJECTIVE This work investigates anti-inflammatory, analgesic and gastroprotective activities of MeOH/CH2Cl2 crude extract and its fractions F1 (50% MeOH) and F2 (80% MeOH) from the whole alga plant Laurencia obtusa Hudson (Rhodomelaceae). MATERIALS AND METHODS Anti-inflammatory activity was evaluated in vitro using cytometric bead array (CBA) technology to follow up the secretion of tumour necrosis factor alpha (TNF-α) in lipopolysaccharide activated THP-1 monocytic cells at doses of 10-250 μg/mL and in vivo using carrageenan-induced paw oedema in Wistar rats at doses of 25, 50, 100 and 200 mg/kg. Crude extract and fractions were tested at the doses of 25, 50, 100 and 200 mg/kg for peripheral and central analgesic activity by acetic acid-induced writhing test and hot-plate method, respectively, in Swiss albino mice. Gastroprotective activity was evaluated using HCl/ethanol-induced gastric ulcer test in rats at doses of 25, 50, 100 and 200 mg/kg. RESULTS Crude extract, F1 and F2 showed an interesting inhibition of TNF-α secretion with IC50 values of 25, 52 and 24 μg/mL, respectively, and a significant anti-inflammatory activity in vivo (p < 0.01), 3 h after carrageenan injection, the oedema inhibition was 55.37%, 52.18% and 62.86%, respectively, at the dose of 100 mg/kg. Furthermore, they showed a significant peripheral analgesic activity with 53.79%, 55.92% and 57.37% (p < 0.01) of writhing inhibition, respectively. However, no significant activity was found in the hot-plate test. An interesting gastroprotective effect was observed with crude extract and its fractions F1 and F2 with a gastric ulcer inhibition of 65.48%, 77.42% and 81.29%, respectively, at the dose of 50 mg/kg. DISCUSSION AND CONCLUSION These results suggest that L. obtusa might be used as a potential source of natural anti-inflammatory and analgesic agents with gastroprotective effect.
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Affiliation(s)
- Sirine Lajili
- a Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09) , Unité de Pharmacologie Marine, Faculté de pharmacie de Monastir, Université de Monastir , Monastir , Tunisia
- b UMR 7200 CNRS, Laboratoire d'Innovation Thérapeutique, Faculté de Pharmacie , Université de Strasbourg , Illkirch , France
| | - Monia Deghrigue
- a Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09) , Unité de Pharmacologie Marine, Faculté de pharmacie de Monastir, Université de Monastir , Monastir , Tunisia
| | - Haifa Bel Haj Amor
- a Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09) , Unité de Pharmacologie Marine, Faculté de pharmacie de Monastir, Université de Monastir , Monastir , Tunisia
| | - Christian D Muller
- b UMR 7200 CNRS, Laboratoire d'Innovation Thérapeutique, Faculté de Pharmacie , Université de Strasbourg , Illkirch , France
| | - Abderrahman Bouraoui
- a Laboratoire de Développement Chimique, Galénique et Pharmacologique des Médicaments (LR12ES09) , Unité de Pharmacologie Marine, Faculté de pharmacie de Monastir, Université de Monastir , Monastir , Tunisia
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Chen JY, Huang CY, Lin YS, Hwang TL, Wang WL, Chiou SF, Sheu JH. Halogenated Sesquiterpenoids from the Red Alga Laurencia tristicha Collected in Taiwan. J Nat Prod 2016; 79:2315-2323. [PMID: 27536968 DOI: 10.1021/acs.jnatprod.6b00452] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chemical investigation of the red alga Laurencia tristicha led to the discovery of eight new halogenated chamigrane-type sesquiterpenoids (1-8) and one new bromocuparane-type sesquiterpene (9), along with nine known related metabolites (10-18). Their structures were elucidated on the basis of extensive spectroscopic analyses, and the absolute configurations of 1-8 were proposed by comparison to the biosynthetically related known compound 12. Cytotoxicity, antibacterial, and anti-inflammatory activities of these isolates were also investigated. The results showed that compound 11 exhibited good antibacterial activity against Serratia marcescens compared to the positive control ampicillin at a dosage of 100 μg/disk. Compound 17 showed strong inhibition toward elastase release generation at 10 μM.
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Affiliation(s)
| | | | - Yun-Sheng Lin
- Department of Biological Science & Technology, Mei Ho University , Pingtung 912, 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; and Department of Anesthesiology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Wei-Lung Wang
- Department of Biology, National Changhua University of Education , Changhua 500, Taiwan
| | | | - Jyh-Horng Sheu
- Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University , Taichung 404, Taiwan
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22
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Gutiérrez-Cepeda A, Fernández JJ, Norte M, López-Rodríguez M, Brito I, Muller CD, Souto ML. Additional Insights into the Obtusallene Family: Components of Laurencia marilzae. J Nat Prod 2016; 79:1184-1188. [PMID: 26967625 DOI: 10.1021/acs.jnatprod.5b01080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The obtusallenes are a significant subset of C15-halogenated acetogenins that incorporate 12-membered cyclic ethers. We have recently reported the isolation from Laurencia marilzae of 12-epoxyobtusallene IV (1) and its related α,β-unsaturated carboxylate ester (2), both of special biogenetic relevance. Here we describe the final step of our study, the isolation of three new analogues (3-5), among these, the first bromopropargylic derivative (3) of this class of macrocyclic C15-acetogenins. The structures were elucidated by analysis of NMR and X-ray data. 12-Epoxyobtusallene IV (1), its new isomer 4, and known obtusallene IV (6) were evaluated for their apoptosis-inducing activities in a human hepatocarcinoma cell line.
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Affiliation(s)
- Adrián Gutiérrez-Cepeda
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain
- Departamento de Química, Instituto de Química, Facultad de Ciencias, Universidad Autónoma de Santo Domingo , Ciudad Universitaria, 1355 Santo Domingo, Dominican Republic
| | - José J Fernández
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain
| | - Manuel Norte
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain
| | - Matías López-Rodríguez
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain
| | - Iván Brito
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain
- Departamento de Química, Universidad de Antofagasta , Avenida Angamos 601, Antofagasta, Chile
| | - Christian D Muller
- Laboratoire d'Innovation Thérapeutique, UMR 7200 CRNS, Faculté de Pharmacie, Université de Strasbourg , 67401 Illkirch, France
| | - María L Souto
- Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO), Centro de Investigaciones Biomédicas de Canarias (CIBICAN), Departamento de Química Orgánica, Universidad de La Laguna (ULL) , Avenida Astrofísico Francisco Sánchez, 2, 38206 La Laguna, Tenerife, Spain
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Salvador-Neto O, Gomes SA, Soares AR, Machado FLDS, Samuels RI, Nunes da Fonseca R, Souza-Menezes J, Moraes JLDC, Campos E, Mury FB, Silva JR. Larvicidal Potential of the Halogenated Sesquiterpene (+)-Obtusol, Isolated from the Alga Laurencia dendroidea J. Agardh (Ceramiales: Rhodomelaceae), against the Dengue Vector Mosquito Aedes aegypti (Linnaeus) (Diptera: Culicidae). Mar Drugs 2016; 14:md14020020. [PMID: 26821032 PMCID: PMC4771978 DOI: 10.3390/md14020020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Revised: 01/05/2016] [Accepted: 01/05/2016] [Indexed: 11/08/2022] Open
Abstract
Dengue is considered a serious public health problem in many tropical regions of the world including Brazil. At the moment, there is no viable alternative to reduce dengue infections other than controlling the insect vector, Aedes aegypti Linnaeus. In the continuing search for new sources of chemicals targeted at vector control, natural products are a promising alternative to synthetic pesticides. In our work, we investigated the toxicity of a bioactive compound extracted from the red alga Laurencia dendroidea J. Agardh. The initial results demonstrated that crude extracts, at a concentration of 5 ppm, caused pronounced mortality of second instar A. aegypti larvae. Two molecules, identified as (−)-elatol and (+)-obtusol were subsequently isolated from crude extract and further evaluated. Assays with (−)-elatol showed moderate larvicidal activity, whereas (+)-obtusol presented higher toxic activity than (−)-elatol, with a LC50 value of 3.5 ppm. Histological analysis of the larvae exposed to (+)-obtusol revealed damage to the intestinal epithelium. Moreover, (+)-obtusol-treated larvae incubated with 2 µM CM-H2DCFDA showed the presence of reactive oxygen species, leading us to suggest that epithelial damage might be related to redox imbalance. These results demonstrate the potential of (+)-obtusol as a larvicide for use against A. aegypti and the possible mode of action of this compound.
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Affiliation(s)
- Orlando Salvador-Neto
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
| | - Simone Azevedo Gomes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Laboratório de Entomologia e Fitopatologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil.
| | - Angélica Ribeiro Soares
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
| | - Fernanda Lacerda da Silva Machado
- Grupo de Produtos Naturais de Organismos Aquáticos (GPNOA), Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
| | - Richard Ian Samuels
- Laboratório de Entomologia e Fitopatologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Campos dos Goytacazes, Rio de Janeiro 28013-602, Brazil.
| | - Rodrigo Nunes da Fonseca
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Laboratório Integrado de Ciências Morfofuncionais (LICMF), Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, (INCT-EM), Rio de Janeiro 21941-590, Brazil.
| | - Jackson Souza-Menezes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Laboratório Integrado de Ciências Morfofuncionais (LICMF), Núcleo em Ecologia e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, (INCT-EM), Rio de Janeiro 21941-590, Brazil.
| | - Jorge Luiz da Cunha Moraes
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, (INCT-EM), Rio de Janeiro 21941-590, Brazil.
| | - Eldo Campos
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, (INCT-EM), Rio de Janeiro 21941-590, Brazil.
| | - Flávia Borges Mury
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, (INCT-EM), Rio de Janeiro 21941-590, Brazil.
| | - José Roberto Silva
- Laboratório Integrado de Bioquímica Hatisaburo Masuda (LIBHM); Núcleo em Pesquisas Ecológicas e Desenvolvimento Sócio-Ambiental de Macaé (NUPEM), Universidade Federal do Rio de Janeiro, Macaé, Rio de Janeiro 27965-045, Brazil.
- Instituto Nacional de Ciência e Tecnologia em Entomologia Molecular, (INCT-EM), Rio de Janeiro 21941-590, Brazil.
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Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-dependent transcription factor that mediates the toxic and biological effects of structurally diverse chemicals, including the environmental contaminant 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD). As part of a larger effort to identify the full spectrum of chemicals that can bind to and activate the AhR, we have examined the ability of several naturally occurring marine-derived brominated indoles and brominated (methylthio)indoles (collectively referred to as brominated indoles) to bind to the AhR and stimulate AhR-dependent gene expression. Incubation of mouse, rat, and guinea pig recombinant cell lines containing a stably transfected AhR-responsive luciferase reporter gene with eight brominated indoles revealed that all compounds stimulated luciferase reporter gene activity, although some species-specific differences were observed. All compounds induced significantly more luciferase activity when incubated with cells for 4 h as compared to 24 h, demonstrating that these compounds are transient activators of the AhR signaling pathway. Three of the brominated indoles induced CYP1A1 mRNA in human HepG2 cells in vitro and Cyp1a mRNA in zebrafish embryos in vivo. The identification of the brominated indoles as direct ligands and activators/agonists of the AhR was confirmed by their ability to compete with [(3)H]TCDD for binding to the AhR and to stimulate AhR transformation and DNA binding in vitro. Taken together, these results indicate that marine-derived brominated indoles are members of a new class of naturally occurring AhR agonists.
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Affiliation(s)
- Danica E. DeGroot
- Department of Environmental Toxicology, University of California, Davis, CA USA
| | - Diana G. Franks
- Department of Biology and the Woods Hole Center for Oceans and Human Health, Woods Hole Oceanographic Institution, Woods Hole, MA USA
| | - Tatsuo Higa
- Department of Chemistry, Biology and Marine Sciences, University of the Ryukyus, Nishihara, Okinawa, JAPAN
| | - Junichi Tanaka
- Department of Chemistry, Biology and Marine Sciences, University of the Ryukyus, Nishihara, Okinawa, JAPAN
| | - Mark E. Hahn
- Department of Biology and the Woods Hole Center for Oceans and Human Health, Woods Hole Oceanographic Institution, Woods Hole, MA USA
| | - Michael S. Denison
- Department of Environmental Toxicology, University of California, Davis, CA USA
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Cen-Pacheco F, Santiago-Benítez AJ, García C, Álvarez-Méndez SJ, Martín-Rodríguez AJ, Norte M, Martín VS, Gavín JA, Fernández JJ, Daranas AH. Oxasqualenoids from Laurencia viridis: Combined Spectroscopic-Computational Analysis and Antifouling Potential. J Nat Prod 2015; 78:712-721. [PMID: 25781558 DOI: 10.1021/np5008922] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The chemical study of the red alga Laurencia viridis has led to the isolation of four new polyether triterpenoids: 28-hydroxysaiyacenol B (2), saiyacenol C (3), 15,16-epoxythyrsiferol A (4), and 15,16-epoxythyrsiferol B (5). The structures of 2 and 3 were established mainly by NMR data analysis and comparison with the well-known metabolite dehydrothyrsiferol (1). However, due to the existence of a nonprotonated carbon within the epoxide functionality, stereochemical assignments in 4 and 5 required an in-depth structural study that included NOESY data, J-based configuration analysis, comparison with synthetic models, and DFT calculations. The biological activities of the new metabolites and other related oxasqualenoids were evaluated for the first time against a panel of relevant biofouling marine organisms, and structure-activity conclusions were obtained.
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Affiliation(s)
- Francisco Cen-Pacheco
- ‡Faculty of Bioanalysis, Campus-Veracruz, Universidad Veracruzana, 91700, Veracruz, México
| | | | | | | | - Alberto J Martín-Rodríguez
- ⊥Oceanic Platform of the Canary Islands (PLOCAN), Carretera de Taliarte s/n, 35214, Telde, Gran Canaria, Spain
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de Oliveira LS, Tschoeke DA, de Oliveira AS, Hill LJ, Paradas WC, Salgado LT, Thompson CC, Pereira RC, Thompson FL. New Insights on the terpenome of the red seaweed Laurencia dendroidea (Florideophyceae, Rhodophyta). Mar Drugs 2015; 13:879-902. [PMID: 25675000 PMCID: PMC4344607 DOI: 10.3390/md13020879] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2014] [Revised: 12/17/2014] [Accepted: 01/12/2015] [Indexed: 12/14/2022] Open
Abstract
The red seaweeds belonging to the genus Laurencia are well known as halogenated secondary metabolites producers, mainly terpenoids and acetogennins. Several of these chemicals exhibit important ecological roles and biotechnological applications. However, knowledge regarding the genes involved in the biosynthesis of these compounds is still very limited. We detected 20 different genes involved in the biosynthesis of terpenoid precursors, and 21 different genes coding for terpene synthases that are responsible for the chemical modifications of the terpenoid precursors, resulting in a high diversity of carbon chemical skeletons. In addition, we demonstrate through molecular and cytochemical approaches the occurrence of the mevalonate pathway involved in the biosynthesis of terpenes in L. dendroidea. This is the first report on terpene synthase genes in seaweeds, enabling further studies on possible heterologous biosynthesis of terpenes from L. dendroidea exhibiting ecological or biotechnological interest.
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Affiliation(s)
- Louisi Souza de Oliveira
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ) Av. Carlos Chagas Filho, 373-CCS-IB-BLOCO A (ANEXO) A3-202, SAGE-COPPE, Rio de Janeiro 21941-599, Brazil.
| | - Diogo Antonio Tschoeke
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ) Av. Carlos Chagas Filho, 373-CCS-IB-BLOCO A (ANEXO) A3-202, SAGE-COPPE, Rio de Janeiro 21941-599, Brazil.
| | - Aline Santos de Oliveira
- Federal Institute of Education, Science and Technology of Rio de Janeiro (IFRJ), Campus Duque de Caxias, Avenida República do Paraguai, 120, Sarapuí, Duque de Caxias 25050-100, Brazil.
| | - Lilian Jorge Hill
- Research Institute of the Botanical Garden of Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro 22460-030, Brazil.
| | - Wladimir Costa Paradas
- Research Institute of the Botanical Garden of Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro 22460-030, Brazil.
| | - Leonardo Tavares Salgado
- Research Institute of the Botanical Garden of Rio de Janeiro, Rua Pacheco Leão, 915, Jardim Botânico, Rio de Janeiro 22460-030, Brazil.
| | - Cristiane Carneiro Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ) Av. Carlos Chagas Filho, 373-CCS-IB-BLOCO A (ANEXO) A3-202, SAGE-COPPE, Rio de Janeiro 21941-599, Brazil.
| | - Renato Crespo Pereira
- Departament of Marine Biology, Federal Fluminense University (UFF), Morro do Valonguinho, s/n, Centro, Niterói 24001-970, Brazil.
| | - Fabiano L Thompson
- Institute of Biology, Federal University of Rio de Janeiro (UFRJ) Av. Carlos Chagas Filho, 373-CCS-IB-BLOCO A (ANEXO) A3-202, SAGE-COPPE, Rio de Janeiro 21941-599, Brazil.
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Abstract
Two new laurane-type sesquiterpenoids, debromo-3α-hydroperoxy-3-epiaplysin (1) and debromo-3β-hydroperoxyaplysin (2), together with seven known related compounds (3-9), were isolated from the Chinese red alga Laurencia okamurai. Their structures were elucidated by detailed analysis of spectroscopic data and by comparison with the literature. In bioassay, compounds 2, 4, 8, and 9 exhibited significant PTP1B inhibitory activity with IC50 values ranging from 4.9 to 14.9 μg/ml.
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Affiliation(s)
| | | | | | | | | | - Yue-Wei Guo
- a State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
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Kokkotou K, Ioannou E, Nomikou M, Pitterl F, Vonaparti A, Siapi E, Zervou M, Roussis V. An integrated approach using UHPLC-PDA-HRMS and 2D HSQC NMR for the metabolic profiling of the red alga Laurencia: dereplication and tracing of natural products. Phytochemistry 2014; 108:208-219. [PMID: 25457502 DOI: 10.1016/j.phytochem.2014.10.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 10/04/2014] [Accepted: 10/08/2014] [Indexed: 06/04/2023]
Abstract
The global metabolic profile of Laurencia crude red algal extracts was addressed by applying high-throughput analytical techniques, namely UHPLC–PDA–HRMS and 2D HSQC NMR. An integrated platform including software tools and databases, such as Xcalibur, ToxID, ACD/Labs and MarinLit, has been developed to mine the complex analytical data towards the accelerated identification of known metabolites and the detection of new natural products at the early stages of phytochemical analysis. In parallel, a searchable ‘in-house’ Laurencia-focused NMR database incorporating chemical structures, NMR spectroscopic data and reported biological activities has been generated. The screening strategy has been developed as a tool to prioritize the crude extracts to be further subjected to phytochemical analysis by tracing the presence of new natural products among the pool of known compounds. The successful application of this integrated methodology in the crude extract of Laurencia chondrioides led to the rapid detection of two new C15 bromoallene acetogenins (1 and 2), which were subsequently isolated and characterized.
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29
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Desoti VC, Lazarin-Bidóia D, Sudatti DB, Pereira RC, Ueda-Nakamura T, Nakamura CV, de Oliveira Silva S. Additional evidence of the trypanocidal action of (-)-elatol on amastigote forms through the involvement of reactive oxygen species. Mar Drugs 2014; 12:4973-83. [PMID: 25257785 PMCID: PMC4178491 DOI: 10.3390/md12094973] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Revised: 03/25/2014] [Accepted: 04/23/2014] [Indexed: 02/07/2023] Open
Abstract
Chagas’ disease, a vector-transmitted infectious disease, is caused by the protozoa parasite Trypanosoma cruzi. Drugs that are currently available for the treatment of this disease are unsatisfactory, making the search for new chemotherapeutic agents a priority. We recently described the trypanocidal action of (−)-elatol, extracted from the macroalga Laurencia dendroidea. However, nothing has been described about the mechanism of action of this compound on amastigotes that are involved in the chronic phase of Chagas’ disease. The goal of the present study was to evaluate the effect of (−)-elatol on the formation of superoxide anions (O2•−), DNA fragmentation, and autophagy in amastigotes of T. cruzi to elucidate the possible mechanism of the trypanocidal action of (−)-elatol. Treatment of the amastigotes with (−)-elatol increased the formation of O2•− at all concentrations of (−)-elatol assayed compared with untreated parasites. Increased fluorescence was observed in parasites treated with (−)-elatol, indicating DNA fragmentation and the formation of autophagic compartments. The results suggest that the trypanocidal action of (−)-elatol might involve the induction of the autophagic and apoptotic death pathways triggered by an imbalance of the parasite’s redox metabolism.
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Affiliation(s)
- Vânia Cristina Desoti
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Danielle Lazarin-Bidóia
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Daniela Bueno Sudatti
- Department of Marine Biology, Federal Fluminense University, P.O. Box 100644, Niteroi, Rio de Janeiro CEP 24001-970, Brazil.
| | - Renato Crespo Pereira
- Department of Marine Biology, Federal Fluminense University, P.O. Box 100644, Niteroi, Rio de Janeiro CEP 24001-970, Brazil.
| | - Tania Ueda-Nakamura
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Celso Vataru Nakamura
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
| | - Sueli de Oliveira Silva
- Postgraduate Program in Pharmaceutical Sciences, State University of Maringa, Colombo Avenue 5790, Maringa, Parana CEP 87020-900, Brazil.
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30
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Yu XQ, He WF, Liu DQ, Feng MT, Fang Y, Wang B, Feng LH, Guo YW, Mao SC. A seco-laurane sesquiterpene and related laurane derivatives from the red alga Laurencia okamurai Yamada. Phytochemistry 2014; 103:162-170. [PMID: 24731260 DOI: 10.1016/j.phytochem.2014.03.021] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2013] [Revised: 12/16/2013] [Accepted: 03/19/2014] [Indexed: 06/03/2023]
Abstract
A ring-cleaved sesquiterpene, named seco-laurokamurone, four laurane-type sesquiterpenes, laurepoxyene, 3β-hydroperoxyaplysin, 3α-hydroperoxy-3-epiaplysin, and 8,10-dibromoisoaplysin, one laurokamurane-type sesquiterpene, laurokamurene D, and one bisabolane-type sesquiterpene, (5S)-5-acetoxy-β-bisabolene, have been isolated from a re-collection of the red alga Laurencia okamurai Yamada, together with six other known sesquiterpenes. Their structures, including relative configuration, were elucidated by detailed analysis of spectroscopic data, and by comparison with data for related known compounds. In addition, on the basis of chemical conversions, degradation results, and biogenetic considerations, the absolute configurations of several of these compounds were also tentatively proposed. seco-Laurokamurone possesses an unprecedented carbon skeleton, formed from an oxidative cleavage of the laurokamurane skeleton, and laurokamurene D represents the fourth example of a laurokamurane-type sesquiterpene from a natural source. The in vitro antifungal activity of many of these compounds was evaluated against four fungi (Cryptococcus neoformans, Candida glabrata, Trichophyton rubrum, and Aspergillus fumigatus), as well as assessing cytotoxicity against HL-60 and A-549 human cancer cell lines. The compounds studied displayed moderate activities, relative to controls.
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Affiliation(s)
- Xiao-Qing Yu
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Wen-Fei He
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Ding-Quan Liu
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Mei-Tang Feng
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Yi Fang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Bin Wang
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Li-Hua Feng
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China
| | - Yue-Wei Guo
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China
| | - Shui-Chun Mao
- School of Pharmacy, Nanchang University, 461 Bayi Road, Nanchang 330006, People's Republic of China; Institute of Translational Medicine, Nanchang University, Nanchang 330031, People's Republic of China.
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31
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Liang Y, Li XM, Li CS, Sun H, Wang BG. Laurane-, cyclolaurane-, and cuparane-type sesquiterpenes from the marine red alga Laurencia okamurai. Nat Prod Commun 2014; 9:323-324. [PMID: 24689206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
Abstract
Chemical investigation of the secondary metabolites extracted from the marine red alga Laurencia okamurai has resulted in the isolation of one new (lauramurin, 1) and six known (2-7) sesquiterpenes. On the basis of the data obtained by our detailed spectroscopic analysis as well as by comparison with those reported, the structures of these compounds were elucidated as four laurane sesquiterpenes including lauramurin (1), laur-11-en-10-ol (2), aplysinol (3), and debromoaplysinol (4), two cyclolaurane sesquiterpenes laurequinone (5) and laurentristich-4-ol (6), and one cuparane ether sesquiterpene (7). The antibacterial activity against Staphylococcus aureus and brine shrimp (Artemia salina) lethality for the isolated compounds were evaluated. Compounds 2 and 5-7 displayed moderate lethality against brine shrimp.
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32
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Wijesinghe WAJP, Kim EA, Kang MC, Lee WW, Lee HS, Vairappan CS, Jeon YJ. Assessment of anti-inflammatory effect of 5β-hydroxypalisadin B isolated from red seaweed Laurencia snackeyi in zebrafish embryo in vivo model. Environ Toxicol Pharmacol 2014; 37:110-117. [PMID: 24317194 DOI: 10.1016/j.etap.2013.11.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 10/31/2013] [Accepted: 11/03/2013] [Indexed: 06/02/2023]
Abstract
5β-Hydroxypalisadin B, a halogenated secondary metabolite isolated from red seaweed Laurencia snackeyi was evaluated for its anti-inflammatory activity in lipopolysaccharide (LPS)-induced zebrafish embryo. Preliminary studies suggested the effective concentrations of the compound as 0.25, 0.5, 1 μg/mL for further in vivo experiments. 5β-Hydroxypalisadin B, exhibited profound protective effect in the zebrafish embryo as confirmed by survival rate, heart beat rate, and yolk sac edema size. The compound acts as an effective agent against reactive oxygen species (ROS) formation induced by LPS and tail cut. Moreover, 5β-hydroxypalisadin B effectively inhibited the LPS-induced nitric oxide (NO) production in zebrafish embryo. All the tested protective effects of 5β-hydroxypalisadin B were comparable to the well-known anti-inflammatory agent dexamethasone. According to the results obtained, 5β-hydroxypalisadin B isolated from red seaweed L. snackeyi could be considered as an effective anti-inflammatory agent which might be further developed as a functional ingredient.
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Affiliation(s)
- W A J P Wijesinghe
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Eun-A Kim
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Min-Cheol Kang
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Won-Woo Lee
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea
| | - Hyi-Seung Lee
- Marine Natural Products Laboratory, Korea Ocean Research & Development Institute, P.O. Box 29, Ansan 426-744, Republic of Korea
| | - Charles S Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, University Malaysia Sabah, Kota Kinabalu 88440, Sabah, Malaysia.
| | - You-Jin Jeon
- Department of Marine Life Sciences, Jeju National University, Jeju 690-756, Republic of Korea.
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33
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Mikami D, Kurihara H, Kim SM, Takahashi K. Red algal bromophenols as glucose 6-phosphate dehydrogenase inhibitors. Mar Drugs 2013; 11:4050-7. [PMID: 24152564 PMCID: PMC3826149 DOI: 10.3390/md11104050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 08/31/2013] [Accepted: 09/02/2013] [Indexed: 11/29/2022] Open
Abstract
Five bromophenols isolated from three Rhodomelaceae algae (Laurencia nipponica, Polysiphonia morrowii, Odonthalia corymbifera) showed inhibitory effects against glucose 6-phosphate dehydrogenase (G6PD). Among them, the symmetric bromophenol dimer (5) showed the highest inhibitory activity against G6PD.
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Affiliation(s)
- Daisuke Mikami
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, Minato, Hakodate, Hokkaido 041-8611, Japan; E-Mails: (D.M.); (K.T.)
| | - Hideyuki Kurihara
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, Minato, Hakodate, Hokkaido 041-8611, Japan; E-Mails: (D.M.); (K.T.)
| | - Sang Moo Kim
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, Gangneung, Gangwon-do 210-702, Korea; E-Mail:
| | - Koretaro Takahashi
- Faculty and Graduate School of Fisheries Sciences, Hokkaido University, Minato, Hakodate, Hokkaido 041-8611, Japan; E-Mails: (D.M.); (K.T.)
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34
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Abstract
The originally assigned stereostructures of laurefurenynes A and B have been reassigned on the basis of DFT calculations of NMR chemical shifts, synthesis of model compounds and total synthesis of laurefurenyne B, demonstrating the power of this combined approach for stereostructure elucidation/confirmation.
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Affiliation(s)
- David J Shepherd
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield RoadOxford, OX1 3TA (UK)
| | - Phillip A Broadwith
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield RoadOxford, OX1 3TA (UK)
| | - Bryony S Dyson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield RoadOxford, OX1 3TA (UK)
| | - Robert S Paton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield RoadOxford, OX1 3TA (UK)
| | - Jonathan W Burton
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield RoadOxford, OX1 3TA (UK)
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35
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Kamada T, Vairappan CS. New bioactive secondary metabolites from Bornean red alga, Laurencia similis (Ceramiales). Nat Prod Commun 2013; 8:287-288. [PMID: 23678792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
A Bomean red algal population of Laurencia similis Nam et Saito was analyzed for its secondary metabolite composition. Seven compounds were identified: ent-1(10)-aristolen-9beta-ol (1), (+)-aristolone (2), axinysone B (3), 9-aristolen-1alpha-ol (4), 2,3,5,6-tetrabromoindole (5), 1-methyl-2,3,5,6-tetrabromoindole (6), and 1-methyl-2,3,5-tribromoindole (7). Compound 1 was identified as a new optical isomer of 1(10)-aristolen-9beta-ol. Compounds 1, 4 and 5 exhibited good antibacterial activity against antibiotic resistant clinical bacteria and cytotoxic effects against selected cancer cell lines.
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Affiliation(s)
- Takashi Kamada
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah, Malaysia
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36
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Liang Y, Li XM, Cui CM, Li CS, Sun H, Wang BG. Sesquiterpene and acetogenin derivatives from the marine red alga Laurencia okamurai. Mar Drugs 2012; 10:2817-25. [PMID: 23242203 PMCID: PMC3528128 DOI: 10.3390/md10122817] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 12/08/2012] [Accepted: 12/10/2012] [Indexed: 11/16/2022] Open
Abstract
In addition to 13 known compounds, four new bisabolane sesquiterpenes, okamurenes A-D (1-4), a new chamigrane derivative, okamurene E (5), and a new C₁₂-acetogenin, okamuragenin (6), were isolated from the marine red alga Laurencia okamurai. The structures of these compounds were determined through detailed spectroscopic analyses. Of these, okamurenes A and B (1 and 2) are the first examples of bromobisabolane sesquiterpenes possessing a phenyl moiety among Laurencia-derived sesquiterpenes, while okamuragenin (6) was the first acetogenin aldehyde possessing a C₁₂-carbon skeleton. Each of the isolated compounds was evaluated for the brine shrimp (Artemia salina) lethal assay and 7-hydroxylaurene displayed potent lethality with LD₅₀ 1.8 μM.
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Affiliation(s)
| | | | | | | | | | - Bin-Gui Wang
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-532-82898553
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37
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Lang KL, Silva IT, Zimmermann LA, Lhullier C, Mañalich Arana MV, Palermo JA, Falkenberg M, Simões CMO, Schenkel EP, Durán FJ. Cytotoxic activity of semi-synthetic derivatives of elatol and isoobtusol. Mar Drugs 2012; 10:2254-2264. [PMID: 23170082 PMCID: PMC3497021 DOI: 10.3390/md10102254] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2012] [Revised: 09/12/2012] [Accepted: 10/01/2012] [Indexed: 11/09/2022] Open
Abstract
In the present study, the in vitro cytotoxic effects of six semi-synthetic derivatives of elatol (1) and isoobtusol (2) were investigated. Chemical modifications were performed on the hydroxyl groups aiming to get derivatives of different polarity, namely the hemisuccinate, carbamate and sulfamate. The structural elucidation of the new derivatives was based on detailed NMR and MS spectroscopic analyses. The in vitro cytotoxicity of compounds 1 to 8 was evaluated against A459 and RD tumor cell lines with CC50 values ranging from 4.93 to 41.53 µM. These results suggest that the structural modifications performed on both compounds could be considered a good strategy to obtain more active derivatives.
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Affiliation(s)
- Karen L. Lang
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
- Author to whom correspondence should be addressed; ; Tel.: +55-48-37215076; Fax: +55-48-37219350
| | - Izabella T. Silva
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Lara A. Zimmermann
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Cíntia Lhullier
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Maria V. Mañalich Arana
- Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina; (M.V.M.A.); (J.A.P.); (F.J.D.)
| | - Jorge A. Palermo
- Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina; (M.V.M.A.); (J.A.P.); (F.J.D.)
| | - Miriam Falkenberg
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Cláudia M. O. Simões
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Eloir P. Schenkel
- Department of Pharmaceutical Sciences, Federal University of Santa Catarina, Florianópolis, SC, 88040-970, Brazil; (I.T.S.); (L.A.Z.); (C.L.); (M.F.); (C.M.O.S.); (E.P.S.)
| | - Fernando J. Durán
- Department of Organic Chemistry, University of Buenos Aires, Buenos Aires, C1428EGA, Argentina; (M.V.M.A.); (J.A.P.); (F.J.D.)
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38
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Li XD, Ding W, Miao FP, Ji NY. Halogenated chamigrane sesquiterpenes from Laurencia okamurae. Magn Reson Chem 2012; 50:174-177. [PMID: 22354806 DOI: 10.1002/mrc.2870] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 11/13/2011] [Accepted: 11/14/2011] [Indexed: 05/31/2023]
Abstract
Three new halogenated chamigrane sesquiterpenes, laurokamin A (1), laurokamin B (2), and laurokamin C (3), and four known halogenated chamigrane sesquiterpenes, 10-bromo-α-chamigrene (4), 10-bromo-β-chamigrene (5), 2,10-dibromo-3-chloro-β-chamigrene (6), and obtusane (7), were isolated from the marine red alga Laurencia okamurae collected from the coast of Rongcheng, China. The structures of these compounds were unambiguously identified by one- and two-dimensional NMR and mass spectroscopic methods. The antimicrobial activity of compounds 1-3 was evaluated.
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Affiliation(s)
- Xiao-Dong Li
- Gansu Agricultural University, Lanzhou, 730070, China; Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, 264003, China
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Díaz-Marrero AR, de la Rosa JM, Brito I, Darias J, Cueto M. Dactylomelatriol, a biogenetically intriguing omphalane-derived marine sesquiterpene. J Nat Prod 2012; 75:115-118. [PMID: 22220686 DOI: 10.1021/np200845f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Dactylomelatriol (1), obtained from the sea hare Aplysia dactylomela, is the first naturally occurring omphalane-derived sesquiterpene from the marine environment. From this species the known chamigrene and modified bisabolene sesquiterpenes 2-6 were also isolated. The structure and relative configuration of 1 were established by spectroscopic evidence. Its chemical structure is related to omphalic acid, the unique terrestrial-derived omphalane sesquiterpene isolated from a liverwort. A biogenetic route for this compound is proposed. The antimicrobial activities of compounds 1-6 were evaluated against a panel of microorganisms.
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Affiliation(s)
- Ana-R Díaz-Marrero
- Instituto de Productos Naturales y Agrobiología (CSIC), Avenida Astrofísico F. Sánchez, 3, 38206 La Laguna, Tenerife, Spain
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40
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Pacheco FC, Villa-Pulgarin JA, Mollinedo F, Martín MN, Fernández JJ, Daranas AH. New polyether triterpenoids from Laurencia viridis and their biological evaluation. Mar Drugs 2011; 9:2220-2235. [PMID: 22163183 PMCID: PMC3229232 DOI: 10.3390/md9112220] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2011] [Revised: 10/24/2011] [Accepted: 10/27/2011] [Indexed: 11/16/2022] Open
Abstract
The red seaweed Laurencia viridis is a rich source of secondary metabolites derived from squalene. New polyethers, such as iubol (2), 22-hydroxy-15(28)- dehydrovenustatriol (3), 1,2-dehydropseudodehydrothyrsiferol (4), and secodehydrothyrsiferol (5) have been isolated and characterized from this alga. The structures were determined through the interpretation of NMR spectroscopic data and the relative configuration was proposed on the basis of NOESY spectrum and biogenetic considerations. All new compounds exhibited significant cytotoxic activity against a panel of cancer cell lines.
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Affiliation(s)
- Francisco Cen Pacheco
- University Institute for Bio-Organic Chemistry “Antonio González” (IUBO), University of La Laguna (ULL), Astrofísico Francisco Sánchez 2, La Laguna, Tenerife 38206, Spain; E-Mail:
| | - Janny A. Villa-Pulgarin
- Institute of Molecular and Cellular Biology of Cancer, Cancer Research Center, CSIC-University of Salamanca, Campus Miguel de Unamuno, Salamanca E-37007, Spain; E-Mails: (J.A.V.-P.); (F.M.)
- APOINTECH, Spanish-Portuguese Center for Agriculture Research (CIALE), Scientific Park of the University of Salamanca, C/Rio Duero 12, Villamayor, Salamanca E-37185, Spain
| | - Faustino Mollinedo
- Institute of Molecular and Cellular Biology of Cancer, Cancer Research Center, CSIC-University of Salamanca, Campus Miguel de Unamuno, Salamanca E-37007, Spain; E-Mails: (J.A.V.-P.); (F.M.)
| | - Manuel Norte Martín
- University Institute for Bio-Organic Chemistry “Antonio González” (IUBO), University of La Laguna (ULL), Astrofísico Francisco Sánchez 2, La Laguna, Tenerife 38206, Spain; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (M.N.M.); (J.J.F.); (A.H.D.); Tel.: +34-922-318-586 (J.J.F.); Fax: +34-922-318-571 (J.J.F.)
| | - José Javier Fernández
- University Institute for Bio-Organic Chemistry “Antonio González” (IUBO), University of La Laguna (ULL), Astrofísico Francisco Sánchez 2, La Laguna, Tenerife 38206, Spain; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (M.N.M.); (J.J.F.); (A.H.D.); Tel.: +34-922-318-586 (J.J.F.); Fax: +34-922-318-571 (J.J.F.)
| | - Antonio Hernández Daranas
- University Institute for Bio-Organic Chemistry “Antonio González” (IUBO), University of La Laguna (ULL), Astrofísico Francisco Sánchez 2, La Laguna, Tenerife 38206, Spain; E-Mail:
- Authors to whom correspondence should be addressed; E-Mails: (M.N.M.); (J.J.F.); (A.H.D.); Tel.: +34-922-318-586 (J.J.F.); Fax: +34-922-318-571 (J.J.F.)
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41
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Dias DA, Urban S. Phytochemical studies of the southern Australian marine alga, Laurencia elata. Phytochemistry 2011; 72:2081-2089. [PMID: 21802699 DOI: 10.1016/j.phytochem.2011.06.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 06/24/2011] [Accepted: 06/28/2011] [Indexed: 05/31/2023]
Abstract
Chemical profiling of the southern Australian marine alga Laurencia elata (Rhodomelaceae) employing on-flow and stop-flow HPLC-NMR methodology followed by off-line chemical investigations resulted in the isolation of two C16 chamigrenes, cycloelatanene A and B together with three previously reported sesquiterpenes, (3Z)-chlorofucin, pacifenol and elatenyne. The chemical structures were elucidated via detailed spectroscopic analyses.
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Affiliation(s)
- Daniel Anthony Dias
- School of Applied Sciences, Health Innovations Research Institute (HIRi) RMIT University, G.P.O. Box 2476V, Melbourne, Victoria 3001, Australia
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Chatter R, Ben Othman R, Rabhi S, Kladi M, Tarhouni S, Vagias C, Roussis V, Guizani-Tabbane L, Kharrat R. In vivo and in vitro anti-inflammatory activity of neorogioltriol, a new diterpene extracted from the red algae Laurencia glandulifera. Mar Drugs 2011; 9:1293-1306. [PMID: 21822417 PMCID: PMC3148504 DOI: 10.3390/md9071293] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 06/03/2011] [Accepted: 07/05/2011] [Indexed: 11/16/2022] Open
Abstract
Neorogioltriol is a tricyclic brominated diterpenoid isolated from the organic extract of the red algae Laurencia glandulifera. In the present study, the anti-inflammatory effects of neorogioltriol were evaluated both in vivo using carrageenan-induced paw edema and in vitro on lipopolysaccharide (LPS)-treated Raw264.7 macrophages. The in vivo study demonstrated that the administration of 1 mg/kg of neorogioltriol resulted in the significant reduction of carregeenan-induced rat edema. In vitro, our results show that neorogioltriol treatment decreased the luciferase activity in LPS-stimulated Raw264.7 cells, stably transfected with the NF-κB-dependent luciferase reporter. This effect on NF-κB activation is not mediated through MAPK pathways. The inhibition of NF-κB activity correlates with decreased levels of LPS-induced tumor necrosis factor-alpha (TNFα) present in neorogioltriol treated supernatant cell culture. Further analyses indicated that this product also significantly inhibited the release of nitric oxide and the expression of cyclooxygenase-2 (COX-2) in LPS-stimulated Raw264.7 cells. These latter effects could only be observed for neorogioltriol concentrations below 62.5 μM. To our knowledge, this is the first report describing a molecule derived from Laurencia glandulifera with anti-inflammatory activity both in vivo and in vitro. The effect demonstrated in vitro may be explained by the inhibition of the LPS-induced NF-κB activation and TNFα production. NO release and COX-2 expression may reinforce this effect.
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Affiliation(s)
- Rim Chatter
- Unit of Biotoxines, Pasteur Institut of Tunis, 13, Place Pasteur, B.P. 74. 1002 Tunis-Belvedere, Tunisia; E-Mails: (R.C.); (S.T.); (R.K.)
| | - Rym Ben Othman
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics (LIVGM), WHO Collaborating Center for Research and Training in Leishmaniasis and International Associated Laboratory (LIA-CNRS), Pasteur Institut of Tunis, 13, Place Pasteur, B.P. 74. 1002 Tunis-Belvedere, Tunisia; E-Mails: (R.B.O.); (S.R.)
| | - Sameh Rabhi
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics (LIVGM), WHO Collaborating Center for Research and Training in Leishmaniasis and International Associated Laboratory (LIA-CNRS), Pasteur Institut of Tunis, 13, Place Pasteur, B.P. 74. 1002 Tunis-Belvedere, Tunisia; E-Mails: (R.B.O.); (S.R.)
| | - Maria Kladi
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece; E-Mails: (M.K.); (C.V.); (V.R.)
| | - Safa Tarhouni
- Unit of Biotoxines, Pasteur Institut of Tunis, 13, Place Pasteur, B.P. 74. 1002 Tunis-Belvedere, Tunisia; E-Mails: (R.C.); (S.T.); (R.K.)
| | - Constantinos Vagias
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece; E-Mails: (M.K.); (C.V.); (V.R.)
| | - Vassilios Roussis
- Department of Pharmacognosy and Chemistry of Natural Products, School of Pharmacy, University of Athens, Panepistimiopolis Zografou, Athens 15771, Greece; E-Mails: (M.K.); (C.V.); (V.R.)
| | - Lamia Guizani-Tabbane
- Laboratory of Immunopathology, Vaccinology and Molecular Genetics (LIVGM), WHO Collaborating Center for Research and Training in Leishmaniasis and International Associated Laboratory (LIA-CNRS), Pasteur Institut of Tunis, 13, Place Pasteur, B.P. 74. 1002 Tunis-Belvedere, Tunisia; E-Mails: (R.B.O.); (S.R.)
| | - Riadh Kharrat
- Unit of Biotoxines, Pasteur Institut of Tunis, 13, Place Pasteur, B.P. 74. 1002 Tunis-Belvedere, Tunisia; E-Mails: (R.C.); (S.T.); (R.K.)
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da Silva Machado FL, Pacienza-Lima W, Rossi-Bergmann B, de Souza Gestinari LM, Fujii MT, Campos de Paula J, Costa SS, Lopes NP, Kaiser CR, Soares AR. Antileishmanial sesquiterpenes from the Brazilian red alga Laurencia dendroidea. Planta Med 2011; 77:733-735. [PMID: 21058243 DOI: 10.1055/s-0030-1250526] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Investigation of the bioactive crude extracts from two populations of the red alga Laurencia dendroidea from the southeastern Brazilian coast led to the identification of five sesquiterpenes: (+)-obtusane (1), a triquinane derivative (2), (-)-elatol (3), obtusol (4), and cartilagineol (5). An antileishmanial bioassay against Leishmania amazonensis was conducted for crude lipophilic extracts and for sesquiterpenes 2, 3, and 4. Compounds 3 and 4 displayed in vitro and in vivo leishmanicidal activity and very low cytotoxicity.
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Gutiérrez-Cepeda A, Fernández JJ, Gil LV, López-Rodríguez M, Norte M, Souto ML. Nonterpenoid C15 acetogenins from Laurencia marilzae. J Nat Prod 2011; 74:441-448. [PMID: 21338119 DOI: 10.1021/np100866g] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Eight new halogenated C(15) acetogenins, 1-8, were isolated from the organic extract of the red alga Laurencia marilzae. The structure elucidation and the assignments of the relative configurations were established by extensive use of spectroscopic studies, particularly 1D and 2D NMR data, while the absolute configurations of compounds 1 and 5 were determined by single-crystal X-ray diffraction analysis. Compounds 1, 2, 4, 5, and 7, along with the previously reported related cyclic ether obtusallene IV (9), were evaluated against six human solid tumor cell lines. All compounds were found to be essentially inactive (GI(50) > 10 μg/mL).
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Affiliation(s)
- Adrián Gutiérrez-Cepeda
- Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Astrofísico Francisco Sánchez 2, 38206 La Laguna, Spain
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45
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dos Santos AO, Veiga-Santos P, Ueda-Nakamura T, Filho BPD, Sudatti DB, Bianco ÉM, Pereira RC, Nakamura CV. Effect of elatol, isolated from red seaweed Laurencia dendroidea, on Leishmania amazonensis. Mar Drugs 2010; 8:2733-43. [PMID: 21139841 PMCID: PMC2996173 DOI: 10.3390/md8112733] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 10/14/2010] [Accepted: 10/22/2010] [Indexed: 11/17/2022] Open
Abstract
In the present study, we investigated the antileishmanial activity of sesquiterpene elatol, the major constituent of the Brazilian red seaweed Laurencia dendroidea (Hudson) J.V. Lamouroux, against L. amazonensis. Elatol after 72 h of treatment, showed an IC(50) of 4.0 μM and 0.45 μM for promastigote and intracellular amastigote forms of L. amazonensis, respectively. By scanning and transmission electron microscopy, parasites treated with elatol revealed notable changes compared with control cells, including: pronounced swelling of the mitochondrion; appearance of concentric membrane structures inside the organelle; destabilization of the plasma membrane; and formation of membrane structures, apparently an extension of the endoplasmic reticulum, which is suggestive of an autophagic process. A cytotoxicity assay showed that the action of the isolated compound is more specific for protozoa, and it is not toxic to macrophages. Our studies indicated that elatol is a potent antiproliferative agent against promastigote and intracellular amastigote forms, and may have important advantages for the development of new anti-leishamanial chemotherapies.
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Affiliation(s)
- Adriana Oliveira dos Santos
- Programa de Pós-graduação em Microbiologia, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, CEP 86051-990, Campus Universitário, Londrina, Paraná, Brazil; E-Mails: (A.O.S.); (B.P.D.F.)
| | - Phercyles Veiga-Santos
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Bloco B-08, Universidade Estadual de Maringá, Av. Colombo 5790, CEP 87020-900, Maringá, Paraná, Brazil; E-Mails: (P.V.-S.); (T.U.-N.)
| | - Tânia Ueda-Nakamura
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Bloco B-08, Universidade Estadual de Maringá, Av. Colombo 5790, CEP 87020-900, Maringá, Paraná, Brazil; E-Mails: (P.V.-S.); (T.U.-N.)
| | - Benedito Prado Dias Filho
- Programa de Pós-graduação em Microbiologia, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, CEP 86051-990, Campus Universitário, Londrina, Paraná, Brazil; E-Mails: (A.O.S.); (B.P.D.F.)
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Bloco B-08, Universidade Estadual de Maringá, Av. Colombo 5790, CEP 87020-900, Maringá, Paraná, Brazil; E-Mails: (P.V.-S.); (T.U.-N.)
| | - Daniela Bueno Sudatti
- Departamento de Biologia Marinha, Universidade Federal Fluminense, Caixa Postal 100644, CEP 24001-970, Niterói, Rio de Janeiro, Brazil; E-Mails: (D.B.S.); (R.C.P.)
| | - Éverson Miguel Bianco
- Programa de Pós-graduação em Química Orgânica, Universidade Federal Fluminense, Outeiro de São João Baptista, s/n, CEP 24.020-150, Niterói, Rio de Janeiro, Brazil; E-Mail: (É.M.B.)
| | - Renato Crespo Pereira
- Departamento de Biologia Marinha, Universidade Federal Fluminense, Caixa Postal 100644, CEP 24001-970, Niterói, Rio de Janeiro, Brazil; E-Mails: (D.B.S.); (R.C.P.)
- Programa de Pós-graduação em Química Orgânica, Universidade Federal Fluminense, Outeiro de São João Baptista, s/n, CEP 24.020-150, Niterói, Rio de Janeiro, Brazil; E-Mail: (É.M.B.)
| | - Celso Vataru Nakamura
- Programa de Pós-graduação em Microbiologia, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, PR 445, Km 380, CEP 86051-990, Campus Universitário, Londrina, Paraná, Brazil; E-Mails: (A.O.S.); (B.P.D.F.)
- Programa de Pós-graduação em Ciências Farmacêuticas, Laboratório de Inovação Tecnológica no Desenvolvimento de Fármacos e Cosméticos, Bloco B-08, Universidade Estadual de Maringá, Av. Colombo 5790, CEP 87020-900, Maringá, Paraná, Brazil; E-Mails: (P.V.-S.); (T.U.-N.)
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Su S, Sun WS, Wang B, Cheng W, Liang H, Zhao YY, Zhang QY, Wu J. A novel brominated cuparene-derived sesquiterpene ether from the red alga Laurencia sp. J Asian Nat Prod Res 2010; 12:916-920. [PMID: 20924905 DOI: 10.1080/10286020.2010.506190] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A novel brominated cuparene-derived sesquiterpene ether, 8,10-dibromo-3,7-epoxy-laur-13-ol (1), was isolated from Laurencia sp. collected in South China Sea. Besides this, two known sesquiterpenes, (9β)-aristol-1(10)-en-9-ol (2) and aristolone (3), were also yielded, and aristolone (3) was obtained from Laurencia for the first time. Their structures were elucidated by spectroscopic methods.
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Affiliation(s)
- Shan Su
- State Key Laboratory of Natural and Biomimetic Drugs and Department of Natural Medicines, School of Pharmaceutical Sciences, Peking University Health Science Center, Beijing, China
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Abstract
Marine algae produce a cocktail of halogenated metabolites with potential commercial value. Structures exhibited by these compounds go from acyclic entities with a linear chain to complex polycyclic molecules. Their medical and pharmaceutical application has been investigated for a few decades, however other properties, such as antifouling, are not to be discarded. Many compounds were discovered in the last years, although the need for new drugs keeps this field open as many algal species are poorly screened. The ecological role of marine algal halogenated metabolites has somehow been overlooked. This new research field will provide valuable and novel insight into the marine ecosystem dynamics as well as a new approach to comprehending biodiversity. Furthermore, understanding interactions between halogenated compound production by algae and the environment, including anthropogenic or global climate changes, is a challenging target for the coming years. Research of halogenated metabolites has been more focused on macroalgae than on phytoplankton. However, phytoplankton could be a very promising material since it is the base of the marine food chain with quick adaptation to environmental changes, which undoubtedly has consequences on secondary metabolism. This paper reviews recent progress on this field and presents trends on the role of marine algae as producers of halogenated compounds.
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Affiliation(s)
| | - Carlos Vale
- IPIMAR, Av. de Brasília, 1449-006 Lisboa, Portugal; E-Mail: (C.V.)
| | - Amélia Pilar Rauter
- Centro de Química e Bioquímica/Departamento de Química e Bioquímica da Faculdade de Ciências da Universidade de Lisboa, Ed C8, Piso 5, Campo Grande, 1749-016 Lisboa, Portugal; E-Mail: (A.P.R.)
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48
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Vairappan CS, Ishii T, Lee TK, Suzuki M, Zhaoqi Z. Antibacterial activities of a new brominated diterpene from Borneon Laurencia spp. Mar Drugs 2010; 8:1743-9. [PMID: 20631866 PMCID: PMC2901821 DOI: 10.3390/md8061743] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Accepted: 05/14/2010] [Indexed: 11/16/2022] Open
Abstract
In our continuous interest to study the diversity of halogenated metabolites of Malaysian species of the red algal genus Laurencia, we examined the chemical composition of five populations of unrecorded Laurencia sp. A new brominated diterpene, 10-acetoxyangasiol (1), and four other known metabolites, aplysidiol (2), cupalaurenol (3), 1-methyl-2,3,5-tribromoindole (4), and chamigrane epoxide (5), were isolated and identified. Isolated metabolites exhibited potent antibacterial activities against clinical bacteria, Staphylococcus aureus, Staphylococcus sp., Streptococcus pyogenes, Salmonella sp. and Vibrio cholerae.
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Affiliation(s)
- Charles Santhanaraju Vairappan
- Laboratory of Natural Products Chemistry, Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Kota Kinabalu, Sabah, Malaysia.
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Cen-Pacheco F, Nordström L, Souto ML, Martín MN, Fernández JJ, Daranas AH. Studies on polyethers produced by red algae. Mar Drugs 2010; 8:1178-88. [PMID: 20479973 PMCID: PMC2866481 DOI: 10.3390/md8041178] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2010] [Revised: 03/08/2010] [Accepted: 03/22/2010] [Indexed: 11/28/2022] Open
Abstract
Two novel squalene-derived triterpenes, spirodehydrovenustatriol (3) and 14-keto-dehydrothyrsiferol (4) were isolated from the red alga Laurencia viridis, together with two new and unusual C(17) terpenoids, adejen A (5) and B (6). These truncated structures possess structural similarities with other known squalene metabolites and their biogenetic origin has been proposed on the basis of an oxidative process of the squalene skeleton. All the structures were elucidated by extensive use of 2D NMR spectroscopic methods.
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Affiliation(s)
- Francisco Cen-Pacheco
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO), Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Laurette Nordström
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO), Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - María Luisa Souto
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO), Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Manuel Norte Martín
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO), Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - José Javier Fernández
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO), Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Antonio Hernández Daranas
- Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO), Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
- Departamento de Ingeniería Química y Tecnología Farmacéutica, Universidad de La Laguna (ULL), Astrofísico Francisco Sánchez 1, 38071, La Laguna, Tenerife, Spain
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Li YX, Li Y, Lee SH, Qian ZJ, Kim SK. Inhibitors of oxidation and matrix metalloproteinases, floridoside, and D-isofloridoside from marine red alga Laurencia undulata. J Agric Food Chem 2010; 58:578-586. [PMID: 20017487 DOI: 10.1021/jf902811j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In the exploration of abundant marine biological resources, edible red alga Laurencia undulata led to two bioactive isolates: floridoside (1) and D-isofloridoside (2). For the first time, the antioxidant properties of both derivatives (1 and 2) were characterized via free radical scavenging using the ESR technique, reactive oxygen species (ROS) inhibition, membrane protein oxidation, myeloperoxidase (MPO) inhibition, gene expression levels of glutathione (GSH) and superoxide dismutase (SOD), and protein expression of MMP-2 and MMP-9. The results demonstrate that floridoside and D-isofloridoside possess significant antioxidant capacity and are potential inhibitors of MMP-2 and MMP-9. These results clarified that these components may be responsible for the relative activities of crude extract from this genus, which is used as folk medicine. Furthermore, the structure-activity relationships were also suggested. Both isomers could be effective candidates for applications in food and pharmaceutical fields as natural marine antioxidants.
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Affiliation(s)
- Yong-Xin Li
- Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea
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