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Tammam MA, Gamal El-Din MI, Aouidate A, El-Demerdash A. Cephalostatins and ritterazines: Distinctive dimeric marine-derived steroidal pyrazine alkaloids with intriguing anticancer activities. Bioorg Chem 2024; 151:107654. [PMID: 39029319 DOI: 10.1016/j.bioorg.2024.107654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 07/12/2024] [Accepted: 07/14/2024] [Indexed: 07/21/2024]
Abstract
Cephalostatins and ritterazines represent fascinating classes of dimeric marine derived steroidal alkaloids with unique chemical structures and promising biological activities. Originally isolated from marine tube worms and the tunicate Ritterella tokioka collected off the coast of Japan, cephalostatins and ritterazines display potent anticancer effects by inducing apoptosis, disrupting cell cycle progression, and targeting multiple molecular pathways. This review covers the chemistry and bioactivities of 45 cephalostatins and ritterazines from 1988 to 2024, highlighting their complex structures and medicinal contributions. With insights into their structure activity relationships (SAR). Key structural elements, such as the pyrazine ring and 5/6 spiroketal moieties, are found crucial for their biological effects, suggesting interactions with lipid membranes or hydrophobic protein domains. Additionally, the formation of oxocarbenium ions from spiroketal cleavage may enhance their potency by covalently modifying DNA. The pharmacokinetics, ADMET and Drug likeness properties of these steroidal alkaloids are thoroughly addressed. Drug likeness analysis shows that these compounds fit well with the Rule of 4 (Ro4) for Protein-Protein Interaction Drugs (PPIDs), underscoring their potential in this area. Ten compounds (20, 27, 33, 34, 39, 40, 41, 42, 43, and 45) have demonstrated favourable pharmacokinetic and ADMET profiles, making them promising candidates for further research. Future efforts should focus on alternative administration routes, structural modifications, and innovative delivery systems, such as prodrugs and nanoparticles, to improve bioavailability and therapeutic effects. Advances in synthetic chemistry, mechanistic insights, and interdisciplinary collaborations will be essential for translating cephalostatins and ritterazines into effective anticancer therapies.
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Affiliation(s)
- Mohamed A Tammam
- Department of Biochemistry, Faculty of Agriculture, Fayoum University, Fayoum 63514, Egypt
| | - Mariam I Gamal El-Din
- Department of Pharmacognosy, Faculty of Pharmacy, Ain-Shams University, 11566 Cairo, Egypt; Quadram Institute Bioscience, Norwich Research Park, Norwich, Norfolk NR4 7UQ, UK
| | - Adnane Aouidate
- School of Applied Sciences-Ait Melloul, Ibn Zohr University, Agadir, Morocco
| | - Amr El-Demerdash
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7UH, UK; Department of Biochemistry and Metabolism, the John Innes Centre, Norwich Research Park, Norwich NR4 7UH, UK; Division of Organic Chemistry, Department of Chemistry, Faculty of Sciences, Mansoura University, Mansoura 35516, Egypt.
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Silva J, Alves C, Soledade F, Martins A, Pinteus S, Gaspar H, Alfonso A, Pedrosa R. Marine-Derived Components: Can They Be a Potential Therapeutic Approach to Parkinson's Disease? Mar Drugs 2023; 21:451. [PMID: 37623732 PMCID: PMC10455662 DOI: 10.3390/md21080451] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/26/2023] Open
Abstract
The increase in the life expectancy average has led to a growing elderly population, thus leading to a prevalence of neurodegenerative disorders, such as Parkinson's disease (PD). PD is the second most common neurodegenerative disorder and is characterized by a progressive degeneration of the dopaminergic neurons in the substantia nigra pars compacta (SNpc). The marine environment has proven to be a source of unique and diverse chemical structures with great therapeutic potential to be used in the treatment of several pathologies, including neurodegenerative impairments. This review is focused on compounds isolated from marine organisms with neuroprotective activities on in vitro and in vivo models based on their chemical structures, taxonomy, neuroprotective effects, and their possible mechanism of action in PD. About 60 compounds isolated from marine bacteria, fungi, mollusk, sea cucumber, seaweed, soft coral, sponge, and starfish with neuroprotective potential on PD therapy are reported. Peptides, alkaloids, quinones, terpenes, polysaccharides, polyphenols, lipids, pigments, and mycotoxins were isolated from those marine organisms. They can act in several PD hallmarks, reducing oxidative stress, preventing mitochondrial dysfunction, α-synuclein aggregation, and blocking inflammatory pathways through the inhibition translocation of NF-kB factor, reduction of human tumor necrosis factor α (TNF-α), and interleukin-6 (IL-6). This review gathers the marine natural products that have shown pharmacological activities acting on targets belonging to different intracellular signaling pathways related to PD development, which should be considered for future pre-clinical studies.
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Affiliation(s)
- Joana Silva
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (F.S.); (A.M.); (S.P.); (H.G.)
| | - Celso Alves
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, ESTM, Polytechnic of Leiria, 2520-614 Peniche, Portugal;
| | - Francisca Soledade
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (F.S.); (A.M.); (S.P.); (H.G.)
| | - Alice Martins
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (F.S.); (A.M.); (S.P.); (H.G.)
| | - Susete Pinteus
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (F.S.); (A.M.); (S.P.); (H.G.)
| | - Helena Gaspar
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (F.S.); (A.M.); (S.P.); (H.G.)
- BioISI—Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, 1749-016 Lisboa, Portugal
| | - Amparo Alfonso
- Department of Pharmacology, Faculty of Veterinary, University of Santiago de Compostela, 27002 Lugo, Spain;
| | - Rui Pedrosa
- MARE—Marine and Environmental Sciences Centre, ARNET—Aquatic Research Network, ESTM, Polytechnic of Leiria, 2520-614 Peniche, Portugal;
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Alarif WM, Baamer DF, Ghandourah MA, Alorfi HS, Alburae NA, Budiyanto F, Abdel-Naim AB. The pro-apoptotic activity of sinueracasbanone D isolated from Sinularia Leptoclados in hepatocellular carcinoma cells. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:56920-56929. [PMID: 36930304 DOI: 10.1007/s11356-023-26466-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 03/11/2023] [Indexed: 06/18/2023]
Abstract
The soft-bodied corals of the genera Sarcophyton and Sinularia (Alcyoniidae) are known as a warehouse of casbane and cembranoid diterpenoids with remarkable antitumor effects. Two casbane-type diterpenoids (1, 2) along with four cembrane-type diterpenoids (3-6) were isolated from the diethyl ether soluble fraction of the organic extracts of the Red Sea soft corals Sinularia leptoclados and Sarcophyton glaucum, respectively. The antiproliferative activity of all isolated compounds (1-6) against three hepatocellular carcinoma cells, namely, Huh-7, SNU 499, and HepG2, along with the normal cells EA.hy 926, was evaluated. Sinueracabanone D (1) displayed a remarkable antiproliferative effect against the examined cancer cell lines, especially HepG2 cells with IC50 of 4.0 ± 0.37 µM. Cell cycle analysis indicated compound 1 caused the accumulation of HepG2 cells in the G2/M-phase. Further, compound 1 exhibited significant pro-apoptotic activities in HepG2 cells as evidenced by annexin V staining, enhanced mRNA expression of Bax, cytochrome C, and caspase 3, as well as inhibition of Bcl2 expression. Also, challenging HepG2 cells with sinueracabanone D (1) enhanced the active oxygen species generation and decreased mitochondrial membrane potential. In conclusion, compound 1 possesses potent antiproliferative activities against HepG2 cells. These antiproliferative activities are mediated, at least partly, by their ability to induce apoptosis, mitochondrial dysfunction, and oxidative stress.
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Affiliation(s)
- Walied M Alarif
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, PO Box, 80207, Jeddah, 21589, Saudi Arabia.
| | - Doaa F Baamer
- Department of Chemistry, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, 21589, Saudi Arabia
| | - Mohamed A Ghandourah
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, PO Box, 80207, Jeddah, 21589, Saudi Arabia
| | - Hajer S Alorfi
- Department of Chemistry, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, 21589, Saudi Arabia
| | - Najla A Alburae
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, PO Box 80200, Jeddah, 21589, Saudi Arabia
| | - Fitri Budiyanto
- Department of Marine Chemistry, Faculty of Marine Sciences, King Abdulaziz University, PO Box, 80207, Jeddah, 21589, Saudi Arabia
- National Research and Innovation Agency, Jl. M.H. Thamrin No. 8, Jakarta, 10340, Indonesia
| | - Ashraf B Abdel-Naim
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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Jean-Louis Kraus. Natural Products as Potential Antiviral Drugs: The Specific Case of Marine Biotoxins. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021; 47:1127-1132. [PMID: 34931111 PMCID: PMC8675108 DOI: 10.1134/s1068162021060133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 04/20/2021] [Accepted: 04/22/2021] [Indexed: 12/04/2022]
Abstract
To fight against various viral infections researchers turned to new chemical structures resulting from natural medicinal plants and more recently from "marine origin" as sources of active molecules against viral infections. The present manuscript describes complex marine origin drugs, their chemical complex structure, their therapeutic use, and their antiviral properties. Emphasis is placed more particularly on the properties of ionic channels (Na+, K+, Ca2+) blockers compounds from marine origin, named Dinotoxins, derived from "dinoflagellates microalgae". These compounds are of particular pharmaceutical interest since ionic channels blockers could be used to fight against a wide diversity of viruses, including SARS-CoV2 virus.
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Affiliation(s)
- Jean-Louis Kraus
- Institut de Biologie du Développement de Marseille (IBDM), UMR-7288 CNRS Aix-Marseille University, 13288 Marseille Cedex, France
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Rombach D, Birenheide B, Wagenknecht H. Photoredox Catalytic Pentafluorosulfanylative Domino Cyclization of α-Substituted Alkenes to Oxaheterocycles by Using SF 6. Chemistry 2021; 27:8088-8093. [PMID: 33831262 PMCID: PMC8252034 DOI: 10.1002/chem.202100767] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Indexed: 01/14/2023]
Abstract
Virtually inert sulfur hexafluoride becomes a precious pentafluorosulfanylation agent, if properly activated by photoredox catalysis, to access α-fluoro and α-alkoxy SF5 -compounds. This advanced protocol converts SF6 in the presence of alkynols as bifunctional C-C- and C-O-bond forming reagents directly into pentafluorosulfanylated oxygen-containing heterocycles in a single step from α-substituted alkenes. The proposed mechanism is supported by theoretical calculations and gives insights not only in the pentafluorosulfanylation step but also into formation of the carbon-carbon bond and is in full agreement with Baldwin's cyclization rules. The key step is a radical type 5-, 6- respectively 7-exo-dig-cyclization. The synthesized oxaheterocycles cannot be simply prepared by other synthetic methods, show a high level of structural complexity and significantly expand the scope of pentafluorosulfanylated building blocks valuable for medicinal and material chemistry.
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Affiliation(s)
- David Rombach
- Laboratory of Inorganic ChemistrySwiss Federal Institute of Technology (ETH)Vladimir-Prelog-Weg 1–5/108093ZürichSwitzerland
| | - Bernhard Birenheide
- Institute of Inorganic ChemistryKalsruhe Institute of Technology (KIT)Engesserstr. 1576131KarlsruheGermany
| | - Hans‐Achim Wagenknecht
- Institute of Organic ChemistryKarlsruhe Institute of Technology (KIT)Fritz-Haber-Weg 676131KarlsruheGermany
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Abdullah MA, Hussein HA. Integrated algal and oil palm biorefinery as a model system for bioenergy co-generation with bioproducts and biopharmaceuticals. BIORESOUR BIOPROCESS 2021; 8:40. [PMID: 38650258 PMCID: PMC10992906 DOI: 10.1186/s40643-021-00396-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 05/11/2021] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND There has been a greater call for greener and eco-friendly processes and bioproducts to meet the 2030's core agenda on 17 global sustainable development goals. The challenge lies in incorporating systems thinking with a comprehensive worldview as a guiding principle to develop the economy, whilst taking cognisance of the need to safeguard the environment, and to embrace the socio-cultural diversity dimension as an equal component. Any discussion on climate change, destruction of eco-system and habitat for wildlife, poverty and starvation, and the spread of infectious diseases, must be addressed together with the emphasis on the development of cleaner energy, air and water, better management of resources and biodiversity, improved agro-practices for food production and distribution, and affordable health care, as the outcomes and key performance indicators to be evaluated. Strict regulation, monitoring and enforcement to minimize emission, pollution and wastage must also be put in place. CONCLUSION This review article focuses on the research and development efforts to achieve sustainable bioenergy production, environmental remediation, and transformation of agro-materials into value-added bioproducts through the integrated algal and oil palm biorefinery. Recent development in microalgal research with nanotechnology as anti-cancer and antimicrobial agents and for biopharmaceutical applications are discussed. The life-cycle analysis in the context of palm oil mill processes is evaluated. The way forward from this integrated biorefinery concept is to strive for inclusive development strategies, and to address the immediate and pressing problems facing the Planet and the People, whilst still reaping the Profit.
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Affiliation(s)
- Mohd Azmuddin Abdullah
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia.
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Silva J, Alves C, Pinteus S, Susano P, Simões M, Guedes M, Martins A, Rehfeldt S, Gaspar H, Goettert M, Alfonso A, Pedrosa R. Disclosing the potential of eleganolone for Parkinson's disease therapeutics: Neuroprotective and anti-inflammatory activities. Pharmacol Res 2021; 168:105589. [PMID: 33812007 DOI: 10.1016/j.phrs.2021.105589] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/16/2022]
Abstract
The treatment of Parkinson´s disease (PD) has benefited from significant advances resulting from the increasing research efforts focused on new therapeutics. However, the current treatments for PD are mostly symptomatic, alleviating disease symptoms without reversing or retarding disease progression. Thus, it is critical to find new molecules that can result in more effective treatments. Within this framework, this study aims to evaluate the neuroprotective and anti-inflammatory effects of three compounds (eleganolone, eleganonal and fucosterol) isolated from the brown seaweed Bifurcaria bifurcata. In vitro neuroprotective effects were evaluated on a PD cellular model induced by the neurotoxin 6-hydroxydopamine (6-OHDA) on SH-SY5Y human cells, while lipopolysaccharide (LPS) - stimulated RAW 264.7 macrophages were used to evaluate the anti-inflammatory potential. Additionally, the underlying mechanisms of action were also investigated. Compounds were isolated by preparative chromatographic methods and their structural elucidation attained by NMR spectroscopy. Among the tested compounds, eleganolone (0.1-1 µM; 24 h) reverted the neurotoxicity induced by 6-OHDA in about 20%. The neuroprotective effects were mediated by mitochondrial protection, reduction of oxidative stress, inflammation and apoptosis, and inhibition of NF-kB pathway. The results suggest that eleganolone may provide advantages in the treatment of neurodegenerative conditions and, therefore, should be considered for future preclinical studies.
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Affiliation(s)
- Joana Silva
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; Department of Pharmacology, Faculty of Veterinary, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Celso Alves
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal
| | - Susete Pinteus
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal
| | - Patrícia Susano
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal
| | - Marco Simões
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal
| | - Miguel Guedes
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal
| | - Alice Martins
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal
| | - Stephanie Rehfeldt
- Cell Culture Laboratory, Graduate Program in Biotechnology, University of Vale do Taquari - UNIVATES, 95901-120 Lajeado, RS, Brazil
| | - Helena Gaspar
- MARE - Marine and Environmental Sciences Centre, Polytechnic of Leiria, 2520-630 Peniche, Portugal; BioISI - Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, 1749-016 Lisboa, Portugal
| | - Márcia Goettert
- Cell Culture Laboratory, Graduate Program in Biotechnology, University of Vale do Taquari - UNIVATES, 95901-120 Lajeado, RS, Brazil
| | - Amparo Alfonso
- Department of Pharmacology, Faculty of Veterinary, University of Santiago de Compostela, 27002 Lugo, Spain
| | - Rui Pedrosa
- MARE - Marine and Environmental Sciences Centre, ESTM, Polytechnic of Leiria, 2520-614 Peniche, Portugal.
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Ulagesan S, Nam TJ, Choi YH. Cytotoxicity against human breast carcinoma cells of silver nanoparticles biosynthesized using Capsosiphon fulvescens extract. Bioprocess Biosyst Eng 2021; 44:901-911. [PMID: 33486577 DOI: 10.1007/s00449-020-02498-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
Targeting cancer cells with small nanoparticles is a novel and promising approach to cancer therapy. Breast cancer is the most common cancer afflicting women worldwide. In the present study, silver nanoparticles (AgNPs) were synthesized using the aqueous extract of the marine alga Capsosiphon (C.) fulvescens, and the cytotoxicity and anti-cancer activities of the nanoparticles against MCF-7 breast cancer cells were analyzed. Nanoparticle formation was confirmed by solution color change and UV-Vis spectroscopy. The size and distribution of the C. fulvescens-biosynthesized silver nanoparticles (CfAgNPs) were then examined using various analytical methods; the particle size was around 20-22 nm and spherical in shape with no agglomeration. Cytotoxicity analysis revealed that the inhibitory concentration (IC50) of CfAgNPs was 50 μg/ml. MCF-7 cell viability decreased with increasing concentrations of CfAgNPs. MCF-7 cells were evaluated for morphological changes before and after treatment with the CfAgNPs; cells treated with C. fulvescens aqueous algal extract (without CfAgNPs) showed irregular confluent aggregates with round polygonal cells, similar to the untreated control. Tamoxifen- (TMX) and CfAgNPs-treated cells show significant morphological changes. An apoptosis study was conducted using 4',6-diamidino-2-phenylindole (DAPI) staining, in which CfAgNP-treated MCF-7 cells generated bright blue fluorescence and shortened, disjointed chromatin was evident; control cells displayed less bright fluorescence. Flow cytometry analysis revealed that the percentage of cells in late apoptosis was high following treatment with TMX (77.2%) and CfAgNP (74.6%). A novel anti-cancer agent, developed by generating silver nanoparticles from C. fulvescens extract, showed strong cytotoxic activity against MCF-7 cells.
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Affiliation(s)
- Selvakumari Ulagesan
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea
| | - Taek-Jeong Nam
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea.
| | - Youn-Hee Choi
- Institute of Fisheries Sciences, Pukyong National University, Busan, 46041, Republic of Korea.
- Department of Marine Bio-Materials and Aquaculture, Pukyong National University, 45, Yongso-ro, Nam-Gu, Busan, 48513, Republic of Korea.
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Oceans as a Source of Immunotherapy. Mar Drugs 2019; 17:md17050282. [PMID: 31083446 PMCID: PMC6562586 DOI: 10.3390/md17050282] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/03/2019] [Accepted: 05/06/2019] [Indexed: 02/07/2023] Open
Abstract
Marine flora is taxonomically diverse, biologically active, and chemically unique. It is an excellent resource, which offers great opportunities for the discovery of new biopharmaceuticals such as immunomodulators and drugs targeting cancerous, inflammatory, microbial, and fungal diseases. The ability of some marine molecules to mediate specific inhibitory activities has been demonstrated in a range of cellular processes, including apoptosis, angiogenesis, and cell migration and adhesion. Immunomodulators have been shown to have significant therapeutic effects on immune-mediated diseases, but the search for safe and effective immunotherapies for other diseases such as sinusitis, atopic dermatitis, rheumatoid arthritis, asthma and allergies is ongoing. This review focuses on the marine-originated bioactive molecules with immunomodulatory potential, with a particular focus on the molecular mechanisms of specific agents with respect to their targets. It also addresses the commercial utilization of these compounds for possible drug improvement using metabolic engineering and genomics.
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Ashu EE, Xu J, Yuan ZC. Bacteria in Cancer Therapeutics: A Framework for Effective Therapeutic Bacterial Screening and Identification. J Cancer 2019; 10:1781-1793. [PMID: 31205534 PMCID: PMC6547982 DOI: 10.7150/jca.31699] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Accepted: 02/21/2019] [Indexed: 12/11/2022] Open
Abstract
By 2030, the global incidence of cancer is expected to increase by approximately 50%. However, most conventional therapies still lack cancer selectivity, which can have severe unintended side effects on healthy body tissue. Despite being an unconventional and contentious therapy, the last two decades have seen a significant renaissance of bacterium-mediated cancer therapy (BMCT). Although promising, most present-day therapeutic bacterial candidates have not shown satisfactory efficacy, effectiveness, or safety. Furthermore, therapeutic bacterial candidates are available to only a few of the approximately 200 existing cancer types. Excitingly, the recent surge in BMCT has piqued the interest of non-BMCT microbiologists. To help advance these interests, in this paper we reviewed important aspects of cancer, present-day cancer treatments, and historical aspects of BMCT. Here, we provided a four-step framework that can be used in screening and identifying bacteria with cancer therapeutic potential, including those that are uncultivable. Systematic methodologies such as the ones suggested here could prove valuable to new BMCT researchers, including experienced non-BMCT researchers in possession of extensive knowledge and resources of bacterial genomics. Lastly, our analyses highlight the need to establish and standardize quantitative methods that can be used to identify and compare bacteria with important cancer therapeutic traits.
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Affiliation(s)
- Eta E. Ashu
- Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, Ontario, Canada
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, Ontario, Canada
| | - Jianping Xu
- Department of Biology, McMaster University, Hamilton, Ontario, Canada
| | - Ze-Chun Yuan
- Department of Microbiology & Immunology, Schulich School of Medicine & Dentistry, University of Western Ontario, London, Ontario, Canada
- London Research and Development Centre, Agriculture and Agri-Food Canada, London, Ontario, Canada
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Aghvami M, Keshavarz A, Nazemi M, Zarei MH, Pourahmad J. Selective Cytotoxicity of α-Santonin from the Persian Gulf Sponge Dysidea Avara on Pediatric ALL B-lymphocytes via Mitochondrial Targeting. Asian Pac J Cancer Prev 2018; 19:2149-2154. [PMID: 30139218 PMCID: PMC6171380 DOI: 10.22034/apjcp.2018.19.8.2149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 07/12/2018] [Indexed: 11/27/2022] Open
Abstract
Background: Acute lymphoblastic leukemia (ALL) is one of the most dominant malignancies among children, characterized by production of immature and dysfunctional blasts which are resistant to cytotoxic chemotherapeutic agents. Therefore, research protocols are currently focusing on discovery of novel anti-cancer agents to enhance survival rates and decrease unwanted side effects. Approximately two-thirds of the planet is covered by oceans with a massive range of marine organisms of interest to scientists in pharmaceutical fields. Methods: Among marine resources, sponges are known to have beneficial effects in the treatment of numerous malignancies. One fraction of crude extracts containing α-Santonin was made from the Persian Gulf marine sponge, Dysidea avara, and investigated for anticancer effects. Results: Treatment of ALL B-lymphocytes with the Dysidea avara extract caused augmentation in ROS generation, decline in mitochondrial membrane potential, mitochondrial swelling, release of cytochrome c from mitochondria and activation of caspase-3 only in mitochondria isolated from B-ALL lymphocytes. Conclusion: In brief, our results suggest that Dysidea avara extracts may selectively induce apoptosis in malignant pediatric lymphocytes.
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Affiliation(s)
- Marjan Aghvami
- Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Meesala S, Gurung P, Karmodiya K, Subrayan P, Watve MG. Isolation and structure elucidation of halymeniaol, a new antimalarial sterol derivative from the red alga Halymenia floresii. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2018; 20:391-398. [PMID: 28662593 DOI: 10.1080/10286020.2017.1342636] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/09/2017] [Indexed: 06/07/2023]
Abstract
A new mono-hydroxy acetylated sterol derivative: 12β-hydroxy-3β, 15α, 16β-triacetoxy-cholest-5-en-7-one (halymeniaol) (1), and cholesterol (2) were isolated from the marine red alga Halymenia floresii. The structure of the compound 1 (halymeniaol) was established from its spectral data, derived from HRMS/MS and 2D NMR. Compound 1 exhibited growth inhibitory activity against chloroquine-resistant Plasmodium falciparum 3D7 strain with an IC50 of 3.0 μM.
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Affiliation(s)
- Srinu Meesala
- a Department of Biology , Indian Institute of Science Education and Research , Pune 411008 , India
| | - Pratima Gurung
- a Department of Biology , Indian Institute of Science Education and Research , Pune 411008 , India
| | - Krishanpal Karmodiya
- a Department of Biology , Indian Institute of Science Education and Research , Pune 411008 , India
| | | | - Milind G Watve
- a Department of Biology , Indian Institute of Science Education and Research , Pune 411008 , India
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Chithiravel R, Rajaguru K, Muthusubramanian S, Bhuvanesh N. Characterization of the major isomers of substituted tetrahydro-2 H -pyrans from 1,3,5-triarylpentane-1,5-diols by p -toluenesulfonic acid treatment. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.12.030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Fuochi V, Li Volti G, Camiolo G, Tiralongo F, Giallongo C, Distefano A, Petronio Petronio G, Barbagallo I, Viola M, Furneri PM, Di Rosa M, Avola R, Tibullo D. Antimicrobial and Anti-Proliferative Effects of Skin Mucus Derived from Dasyatis pastinaca (Linnaeus, 1758). Mar Drugs 2017; 15:md15110342. [PMID: 29104260 PMCID: PMC5706032 DOI: 10.3390/md15110342] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/09/2017] [Accepted: 10/25/2017] [Indexed: 12/30/2022] Open
Abstract
Resistance to chemotherapy occurs in various diseases (i.e., cancer and infection), and for this reason, both are very difficult to treat. Therefore, novel antimicrobial and chemotherapic drugs are needed for effective antibiotic therapy. The aim of the present study was to assess the antimicrobial and anti-proliferative effects of skin mucus derived from Dasyatis pastinaca (Linnaeus, 1758). Our results showed that skin mucus exhibited a significant and specific antibacterial activity against Gram-negative bacteria but not against Gram-positive bacteria. Furthermore, we also observed a significant antifungal activity against some strains of Candida spp. Concerning anti-proliferative activity, we showed that fish mucus was specifically toxic for acute leukemia cells (HL60) with an inhibition of proliferation in a dose dependent manner (about 52% at 1000 μg/mL of fish skin mucous, FSM). Moreover, we did not observe effects in healthy cells, in neuroblastoma cells (SH-SY5Y), and multiple myeloma cell lines (MM1, U266). Finally, it exhibited strong expression and activity of chitinase which may be responsible, at least in part, for the aforementioned results.
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Affiliation(s)
- Virginia Fuochi
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Giuseppina Camiolo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | | | - Cesarina Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Giulio Petronio Petronio
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Ignazio Barbagallo
- Department of Drug Sciences, University of Catania, Catania 95125, Italy.
| | - Maria Viola
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Pio Maria Furneri
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Roberto Avola
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania 95124, Italy.
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15
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Mioso R, Marante FJT, Bezerra RDS, Borges FVP, Santos BVDO, Laguna IHBD. Cytotoxic Compounds Derived from Marine Sponges. A Review (2010-2012). Molecules 2017; 22:E208. [PMID: 28134844 PMCID: PMC6155849 DOI: 10.3390/molecules22020208] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 01/11/2017] [Accepted: 01/17/2017] [Indexed: 12/20/2022] Open
Abstract
Abstract: This extensive review covers research published between 2010 and 2012 regarding new compounds derived from marine sponges, including 62 species from 60 genera belonging to 33 families and 13 orders of the Demospongia class (Porifera). The emphasis is on the cytotoxic activity that bioactive metabolites from sponges may have on cancer cell lines. At least 197 novel chemical structures from 337 compounds isolated have been found to support this work. Details on the source and taxonomy of the sponges, their geographical occurrence, and a range of chemical structures are presented. The compounds discovered from the reviewed marine sponges fall into mainly four chemical classes: terpenoids (41.9%), alkaloids (26.2%), macrolides (8.9%) and peptides (6.3%) which, along with polyketides, sterols, and others show a range of biological activities. The key sponge orders studied in the reviewed research were Dictyoceratida, Haplosclerida, Tetractinellida, Poecilosclerida, and Agelasida. Petrosia, Haliclona (Haplosclerida), Rhabdastrella (Tetractinellida), Coscinoderma and Hyppospongia (Dictyioceratida), were found to be the most promising genera because of their capacity for producing new bioactive compounds. Several of the new compounds and their synthetic analogues have shown in vitro cytotoxic and pro-apoptotic activities against various tumor/cancer cell lines, and some of them will undergo further in vivo evaluation.
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Affiliation(s)
- Roberto Mioso
- Laboratory of Enzymology - LABENZ, Department of Biochemistry, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil.
| | - Francisco J Toledo Marante
- Department of Chemistry, University of Las Palmas de Gran Canaria, Las Palmas de Gran Canaria 35017, Spain.
| | - Ranilson de Souza Bezerra
- Laboratory of Enzymology - LABENZ, Department of Biochemistry, Federal University of Pernambuco, Recife 50670-901, Pernambuco, Brazil.
| | - Flávio Valadares Pereira Borges
- Post-Graduation Program in Natural Products and Synthetic Bioactives, Federal University of Paraíba, João Pessoa 58051-970, Paraíba, Brazil.
| | - Bárbara V de Oliveira Santos
- Post-Graduation Program in Development and Technological Innovation in Medicines, Department of Pharmaceutical Sciences, Federal University of Paraiba, João Pessoa 58051-900, Paraíba, Brazil.
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16
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Singh P, Singh RS, Rani A, Bast F. Homology modeling of chemokine CCR7, molecular docking, and in vitro studies evidenced plausible immunotherapeutic anticancer natural compounds. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1647-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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17
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Gomes NGM, Dasari R, Chandra S, Kiss R, Kornienko A. Marine Invertebrate Metabolites with Anticancer Activities: Solutions to the "Supply Problem". Mar Drugs 2016; 14:E98. [PMID: 27213412 PMCID: PMC4882572 DOI: 10.3390/md14050098] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 04/29/2016] [Accepted: 05/05/2016] [Indexed: 02/07/2023] Open
Abstract
Marine invertebrates provide a rich source of metabolites with anticancer activities and several marine-derived agents have been approved for the treatment of cancer. However, the limited supply of promising anticancer metabolites from their natural sources is a major hurdle to their preclinical and clinical development. Thus, the lack of a sustainable large-scale supply has been an important challenge facing chemists and biologists involved in marine-based drug discovery. In the current review we describe the main strategies aimed to overcome the supply problem. These include: marine invertebrate aquaculture, invertebrate and symbiont cell culture, culture-independent strategies, total chemical synthesis, semi-synthesis, and a number of hybrid strategies. We provide examples illustrating the application of these strategies for the supply of marine invertebrate-derived anticancer agents. Finally, we encourage the scientific community to develop scalable methods to obtain selected metabolites, which in the authors' opinion should be pursued due to their most promising anticancer activities.
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Affiliation(s)
- Nelson G M Gomes
- REQUIMTE/LAQV, Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira No. 228, 4050-313 Porto, Portugal.
| | - Ramesh Dasari
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Sunena Chandra
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
| | - Robert Kiss
- Laboratoire de Cancérologie et de Toxicologie Expérimentale, Faculté de Pharmacie, Université Libre de Bruxelles, Campus de la Plaine, CP205/1, Boulevard du Triomphe, 1050 Brussels, Belgium.
| | - Alexander Kornienko
- Department of Chemistry and Biochemistry, Texas State University, San Marcos, TX 78666, USA.
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18
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Singh P, Bast F. Screening of multi-targeted natural compounds for receptor tyrosine kinases inhibitors and biological evaluation on cancer cell lines, in silico and in vitro. Med Oncol 2015; 32:233. [PMID: 26298529 DOI: 10.1007/s12032-015-0678-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 08/08/2015] [Indexed: 12/27/2022]
Abstract
Receptors for growth factors encompass within the superfamily of receptor tyrosine kinases and are known to regulate numerous biological processes including cellular growth, proliferation, metabolism, survival, cell differentiation and apoptosis. These receptors have recently caught the attention of the researchers as an attractive target to combat cancer owing to the evidence suggesting their over-expression in cancer cells. Therefore, we studied receptor-based molecular docking of IR (PDB; 3ETA), IGF1R (PDB; 1K3A), EGFR (PDB; 1M17), VEGFIR (PDB; 3HNG), and VEGFIIR (PDB; 2OH4) against natural compounds. Further, in vitro investigation of the biological effect of lead molecules in an array of cancer cell lines was done. All selected natural compounds were docked with the X-ray crystal structure of selected protein by employing GLIDE (Grid-based Ligand Docking with Energetics) Maestro 9.6. InterBioScreen natural compounds docked with each selected protein molecules by using GLIDE high throughput virtual screening. On the basis of Gscore, we select 20 compounds along with 68 anticancer compounds for GLIDE extra precision molecular docking. It was discovered in this study that compound epigallocatechin gallate (EGCG) yielded magnificent Gscore with IGF1R (PDB; 1K3A) and VEGFIIR (PDB; 2OH4), and protein-ligand interactions are chart out. Effect of EGCG on biological activity such as mRNA expression of selected protein, cell proliferation, oxidative stress, and cell migration was reported after the 48 h treatments in cancer cell lines. The RT-PCR densitometric bands analysis showed that compound EGCG reduced the mRNA expression of IGF1R, VEGFIIR, and mTOR at 80 μM concentration. Moreover, EGCG significantly reduced cell proliferation and ROS generation after 48 h treatments. Our result also indicated a reduction in the potential for cell migration that might show in vivo anti-metastasis activity of EGCG.
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Affiliation(s)
- Pushpendra Singh
- Centre for Biosciences, School of Basic and Applied Sciences, Central University of Punjab, Bathinda, 151001, Punjab, India
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19
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Temperini A, Barattucci A, Bonaccorsi PM, Rosati O, Minuti L. Stereoselective Synthesis of Substituted Tetrahydropyrans and Isochromans by Cyclization of Phenylseleno Alcohols. J Org Chem 2015. [DOI: 10.1021/acs.joc.5b01199] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrea Temperini
- Dipartimento
di Scienze Farmaceutiche, Università di Perugia, Via del Liceo
1, 06123 Perugia, Italy
| | - Anna Barattucci
- Dipartimento
di Scienze Chimiche, Università di Messina, Viale F. Stagno
d’Alcontres 31, 98166 Messina, Italy
| | - Paola Maria Bonaccorsi
- Dipartimento
di Scienze Chimiche, Università di Messina, Viale F. Stagno
d’Alcontres 31, 98166 Messina, Italy
| | - Ornelio Rosati
- Dipartimento
di Scienze Farmaceutiche, Università di Perugia, Via del Liceo
1, 06123 Perugia, Italy
| | - Lucio Minuti
- Dipartimento
di Chimica, Biologia e Biotecnologie, Università di Perugia, Via Elce
di Sotto 8, 06123 Perugia, Italy
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20
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Erfani N, Nazemosadat Z, Moein M. Cytotoxic activity of ten algae from the Persian Gulf and Oman Sea on human breast cancer cell lines; MDA-MB-231, MCF-7, and T-47D. Pharmacognosy Res 2015; 7:133-7. [PMID: 25829786 PMCID: PMC4357963 DOI: 10.4103/0974-8490.150539] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 08/12/2014] [Accepted: 02/02/2015] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Seaweeds have proven to be a promising natural source of bioactive metabolites for drug development. OBJECTIVE This study aimed to monitor the ethanol extract of ten algae from the Persian Gulf and Oman Sea, for their in vitro cytotoxic activity on three human breast cancer cell lines. MATERIALS AND METHODS Three human breast cancer cell lines including MDA-MB-231(ER(-)), MCF-7(ER(+)), and T-47D (ER(+)) were treated by different concentrations of total ethanol (90%) algae extracts and the cytotoxic effects were evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. Doxorubicin (Ebewe, Austria) was used as a positive control. After 72 h of incubation, the cytotoxic effect of the algae was calculated and presented as 50%-inhibitory concentration (IC50). RESULTS The results indicated Gracilaria foliifera and Cladophoropsis sp. to be the most active algae in terms of cytotoxic effects on the investigated cancer cell lines. The IC50 values against MDA-MB-231, MCF-7, and T-47D cells were, respectively, 74.89 ± 21.71, 207.81 ± 12.07, and 203.25 ± 30.98 µg/ml for G. foliifera and 66.48 ± 4.96, 150.86 ± 51.56 and >400 µg/ml for Cladophoropsis sp. The rest of the algal extracts were observed not to have significant cytotoxic effects in the concentration range from 6.25 µg/ml to 400 µg/ml. CONCLUSION Our data conclusively suggest that G. foliifera and Cladophoropsis sp. may be good candidates for further fractionation to obtain novel anticancer substances. Moreover, stronger cytotoxic effects on estrogen negative breast cancer cell line (MDA-MB-231(ER(-))) in comparison to estrogen positive cells (MCF-7 and T-47D) suggest that the extract of G. foliifera and Cladophoropsis sp. may have an estrogen receptor/progesterone receptor-independent mechanism for their cellular growth inhibition.
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Affiliation(s)
- Nasrollah Erfani
- Shiraz Institute for Cancer Research, School of Medicine, Shiraz, Iran
| | | | - Mahmoodreza Moein
- Medicinal Plants Processing Research Center, Shiraz, Iran ; Department of Pharmacognosy, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
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21
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Statistical research on the bioactivity of new marine natural products discovered during the 28 years from 1985 to 2012. Mar Drugs 2015; 13:202-21. [PMID: 25574736 PMCID: PMC4306932 DOI: 10.3390/md13010202] [Citation(s) in RCA: 141] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 12/22/2014] [Indexed: 01/08/2023] Open
Abstract
Every year, hundreds of new compounds are discovered from the metabolites of marine organisms. Finding new and useful compounds is one of the crucial drivers for this field of research. Here we describe the statistics of bioactive compounds discovered from marine organisms from 1985 to 2012. This work is based on our database, which contains information on more than 15,000 chemical substances including 4196 bioactive marine natural products. We performed a comprehensive statistical analysis to understand the characteristics of the novel bioactive compounds and detail temporal trends, chemical structures, species distribution, and research progress. We hope this meta-analysis will provide useful information for research into the bioactivity of marine natural products and drug development.
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22
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Fan X, Bai L, Zhu L, Yang L, Zhang X. Marine algae-derived bioactive peptides for human nutrition and health. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:9211-22. [PMID: 25179496 DOI: 10.1021/jf502420h] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Within the parent protein molecule, most peptides are inactive, and they are released with biofunctionalities after enzymatic hydrolysis. Marine algae have high protein content, up to 47% of the dry weight, depending on the season and the species. Recently, there is an increasing interest in using marine algae protein as a source of bioactive peptides due to their health promotion and disease therapy potentials. This review presents an overview of marine algae-derived bioactive peptides and especially highlights some key issues, such as in silico proteolysis and quantitative structure-activity relationship studies, in vivo fate of bioactive peptides, and novel technologies in bioactive peptides studies and production.
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Affiliation(s)
- Xiaodan Fan
- College of Light Industry and Food Sciences, South China University of Technology , Guangzhou, China
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23
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Bansal R, Acharya PC. Man-Made Cytotoxic Steroids: Exemplary Agents for Cancer Therapy. Chem Rev 2014; 114:6986-7005. [DOI: 10.1021/cr4002935] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ranju Bansal
- University Institute of Pharmaceutical
Sciences, Panjab University, Chandigarh-160014, India
| | - Pratap Chandra Acharya
- University Institute of Pharmaceutical
Sciences, Panjab University, Chandigarh-160014, India
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24
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Goh SH, Alitheen NBM, Yusoff FM, Yap SK, Loh SP. Crude ethyl acetate extract of marine microalga, Chaetoceros calcitrans, induces Apoptosis in MDA-MB-231 breast cancer cells. Pharmacogn Mag 2014; 10:1-8. [PMID: 24696543 PMCID: PMC3969653 DOI: 10.4103/0973-1296.126650] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2013] [Revised: 05/13/2013] [Accepted: 02/07/2014] [Indexed: 12/30/2022] Open
Abstract
Background: Marine brown diatom Chaetoceros calcitrans and green microalga Nannochloropsis oculata are beneficial materials for various applications in the food, nutraceutical, pharmaceutical and cosmeceutical industries. Objective: This study investigated cytotoxicity of different crude solvent extracts from C. calcitrans and N. oculata against various cancer cell lines. Materials and Methods: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was carried out to screen the cytotoxic effects of hexane (Hex), dichloromethane (DCM), ethyl acetate, and methanol extract from C. calcitrans and N. oculata toward various cancer cell lines. Flow cytometry cell cycle was used to determine the cell cycle arrest while the mode of cell death was investigated through acridine orange/propidium iodide (AOPI) staining, Annexin V-Fluorescein Isothiocyanate (FITC) and Terminal deoxynucleotidyl transferase-mediated d-UTP Nick End Labeling (TUNEL) assays. Expression profile of apoptotic and proliferative-related genes was then determined using the multiplex gene expression profiler (GeXP). Results: Crude ethyl acetate (CEA) extract of C. calcitrans inhibited growth of MDA-MB-231 cells, with IC50 of 60 μg/mL after 72 h of treatment. Further studies were conducted to determine the mode of cell death at various concentrations of this extract: 30, 60 and 120 μg/mL. The mode of cell death was mainly apoptosis as shown through apoptosis determination test. The expression data from GeXP showed that caspase-4 was upregulated while B-cell leukemia/lymphoma 2(Bcl-2) was down regulated. Thus, caspase-4 induction endoplasmic reticulum death pathway is believed to be one of the mechanisms underlying the induction of apoptosis while Bcl-2 induced S and G2/M cell cycle phase arrest in MDA-MB-231 cells. Conclusion: CEA extract of C. calcitrans showed the highest cytotoxicity on MDA-MB-231 via apoptosis.
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Affiliation(s)
- Su Hua Goh
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Noorjahan Banu Mohamed Alitheen
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Fatimah Md Yusoff
- Laboratory of Marine Science and Aquaculture, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Swee Keong Yap
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
| | - Su Peng Loh
- Laboratory of Molecular Biomedicine, Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia ; Department of Nutrition and Health Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, UPM Serdang, Selangor, Malaysia
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25
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Movahhedin N, Barar J, Fathi Azad F, Barzegari A, Nazemiyeh H. Phytochemistry and biologic activities of caulerpa peltata native to oman sea. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2014; 13:515-21. [PMID: 25237346 PMCID: PMC4157026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
General toxicity, antiproliferative, antibacterial and antioxidant activities of Caulerpa peltata J.V.Lamouroux (Caulerpaceae) collected from Oman Sea were investigated. Dried, ground alga was Soxhlet-extracted with hexane, dichloromethane and methanol successively. The methanol extract was subjected to vacuum liquid chromatography (VLC) fractionation on silica gel using a step gradient of different mixture of solvents. A known alkaloid, caulerpin, was subsequently isolated from the fraction eluted by ethyl acatete100%. The antioxidant activity of all extracts was assessed by using the (DPPH) assay. Antiproliferative activity of the all extracts and caulerpin against the cancerous cell line was evaluated using MTT assay. General toxicity of extracts was determined using Brine Shrimp Lethality Assay (BSLA). Based on our results, a weak activity observed for all extracts in MTT assay, while they were toxic toward brine shrimp nauplii comparing to the podophylotoxin. This is the first report on phytochemistry and bioactivity of C. peltata which collected from Oman Sea.
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Affiliation(s)
- Nasrin Movahhedin
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Students’ Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran.,Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Jaleh Barar
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Fatemeh Fathi Azad
- Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Abolfazl Barzegari
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Hossein Nazemiyeh
- Research Center for Pharmaceutical Nanotechnology, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Corresponding author:E-mail:
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Gaascht F, Dicato M, Diederich M. Venus Flytrap (Dionaea muscipula Solander ex Ellis) Contains Powerful Compounds that Prevent and Cure Cancer. Front Oncol 2013; 3:202. [PMID: 23971004 PMCID: PMC3747514 DOI: 10.3389/fonc.2013.00202] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 07/24/2013] [Indexed: 12/11/2022] Open
Abstract
Chemoprevention uses natural or synthetic molecules without toxic effects to prevent and/or block emergence and development of diseases including cancer. Many of these natural molecules modulate mitogenic signals involved in cell survival, apoptosis, cell cycle regulation, angiogenesis, or on processes involved in the development of metastases occur naturally, especially in fruits and vegetables bur also in non-comestible plants. Carnivorous plants including the Venus flytrap (Dionaea muscipula Solander ex Ellis) are much less investigated, but appear to contain a wealth of potent bioactive secondary metabolites. Aim of this review is to give insight into molecular mechanisms triggered by compounds isolated from these interesting plants with either therapeutic or chemopreventive potential.
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Affiliation(s)
- François Gaascht
- Laboratory for Molecular and Cellular Biology of Cancer (LBMCC), Hôpital Kirchberg, Luxembourg, Luxembourg
| | - Mario Dicato
- Laboratory for Molecular and Cellular Biology of Cancer (LBMCC), Hôpital Kirchberg, Luxembourg, Luxembourg
| | - Marc Diederich
- Department of Pharmacy, College of Pharmacy, Seoul National University, Seoul, South Korea
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27
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Gerber HP, Koehn FE, Abraham RT. The antibody-drug conjugate: an enabling modality for natural product-based cancer therapeutics. Nat Prod Rep 2013; 30:625-39. [PMID: 23525375 DOI: 10.1039/c3np20113a] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The Antibody Drug Conjugate (ADC) is a therapeutic modality consisting of a monoclonal antibody attached to a cytotoxic, small-molecule payload. The antibody portion of the ADC serves as a transport vehicle that recognizes and binds to a protein antigen expressed in tumor tissues. The localized delivery and release of the payload within or near malignant cells allows for targeted delivery of a potent cytotoxic agent to diseased tissue, while reducing damage to antigen-negative, normal tissues. Recent years have witnessed an explosive increase in ADC-based therapies, due mainly to clinical reports of activity in both hematologic and epithelial cancers. Accompanying this upsurge in ADC development is a renewed interest in natural product cytotoxins, which are typically highly potent cell-killing agents, but suffer from poor drug-like properties and narrow safety margins when systemically administered as conventional chemotherapeutics. In this review, we discuss recent advances related to the construction of ADCs, the optimization of ADC safety and efficacy, and the increasingly pivotal roles of natural product payloads in the current and future landscape of ADC therapy.
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Affiliation(s)
- Hans-Peter Gerber
- Pfizer Worldwide Research and Development, Oncology Research Unit, 401 Middletown Road, Pearl River, NY, USA.
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28
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Skjånes K, Rebours C, Lindblad P. Potential for green microalgae to produce hydrogen, pharmaceuticals and other high value products in a combined process. Crit Rev Biotechnol 2013; 33:172-215. [PMID: 22765907 PMCID: PMC3665214 DOI: 10.3109/07388551.2012.681625] [Citation(s) in RCA: 207] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2011] [Revised: 01/25/2012] [Accepted: 03/29/2012] [Indexed: 12/31/2022]
Abstract
Green microalgae for several decades have been produced for commercial exploitation, with applications ranging from health food for human consumption, aquaculture and animal feed, to coloring agents, cosmetics and others. Several products from green algae which are used today consist of secondary metabolites that can be extracted from the algal biomass. The best known examples are the carotenoids astaxanthin and β-carotene, which are used as coloring agents and for health-promoting purposes. Many species of green algae are able to produce valuable metabolites for different uses; examples are antioxidants, several different carotenoids, polyunsaturated fatty acids, vitamins, anticancer and antiviral drugs. In many cases, these substances are secondary metabolites that are produced when the algae are exposed to stress conditions linked to nutrient deprivation, light intensity, temperature, salinity and pH. In other cases, the metabolites have been detected in algae grown under optimal conditions, and little is known about optimization of the production of each product, or the effects of stress conditions on their production. Some green algae have shown the ability to produce significant amounts of hydrogen gas during sulfur deprivation, a process which is currently studied extensively worldwide. At the moment, the majority of research in this field has focused on the model organism, Chlamydomonas reinhardtii, but other species of green algae also have this ability. Currently there is little information available regarding the possibility for producing hydrogen and other valuable metabolites in the same process. This study aims to explore which stress conditions are known to induce the production of different valuable products in comparison to stress reactions leading to hydrogen production. Wild type species of green microalgae with known ability to produce high amounts of certain valuable metabolites are listed and linked to species with ability to produce hydrogen during general anaerobic conditions, and during sulfur deprivation. Species used today for commercial purposes are also described. This information is analyzed in order to form a basis for selection of wild type species for a future multi-step process, where hydrogen production from solar energy is combined with the production of valuable metabolites and other commercial uses of the algal biomass.
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Affiliation(s)
- Kari Skjånes
- Bioforsk - Norwegian Institute for Agricultural and Environmental Research, Fredrik A. Dahls vei 20, Ås, Norway.
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Yadav JS, Kavita A, Raghavendra Rao KV, Mohapatra DK. Studies directed towards the total synthesis of narbonolide: stereoselective synthesis of the C1–C15 chain. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Bharate SB, Sawant SD, Singh PP, Vishwakarma RA. Kinase inhibitors of marine origin. Chem Rev 2013; 113:6761-815. [PMID: 23679846 DOI: 10.1021/cr300410v] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Sandip B Bharate
- Medicinal Chemistry Division, Indian Institute of Integrative Medicine (Council of Scientific and Industrial Research), Canal Road, Jammu-180001, India
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Cabral MES, Dias DDQ, Sales DL, Oliveira OP, Teles DA, Filho JADA, de Sousa JGG, Coutinho HDM, da Costa JGM, Kerntopf MR, Alves RRDN, Almeida WDO. Evaluations of the Antimicrobial Activities and Chemical Compositions of Body Fat from the Amphibians Leptodactylus macrosternum Miranda-Ribeiro (1926) and Leptodactylus vastus Adolf Lutz (1930) in Northeastern Brazil. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2013; 2013:913671. [PMID: 23710241 PMCID: PMC3655571 DOI: 10.1155/2013/913671] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2013] [Revised: 03/18/2013] [Accepted: 04/04/2013] [Indexed: 12/20/2022]
Abstract
Leptodactylus macrosternum and L. vastus (family: Leptodactylidae) are commonly encountered in the "Caatinga" biome in northern Brazil. The body fat of L. vastus is used as a zootherapeutic for treating a number of human maladies. The aim of this work was to determine the chemical composition of the body fats of L. macrosternum and L. vastus and to evaluate their antimicrobial activities as well as the ecological implications of their use in traditional folk medicine. Oils were extracted from body fat located in the ventral region of L. macrosternum (OLM) and L. vastus (OLV) using hexane as a solvent. The fatty acids were identified by GC-MS. The antimicrobial activities of the oils, either alone or in combination with antibiotics and antifungal drugs, were tested on standard strains of microorganisms as well as on multiresistant strains of Escherichia coli and Staphylococcus. OLM contained 40% saturated and 60% unsaturated fatty acids, while OLV contained 58.33% saturated and 41.67% unsaturated fatty acids. Our results indicated that both OLM and OLV demonstrated relevant antimicrobial activities (with MIC 256 μ g/mL for both) against Pseudomonas aeruginosa and Candida krusei. However, no antimicrobial effects were observed when these oils were combined with antibiotics or antifungal drugs.
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Affiliation(s)
| | | | - Débora Lima Sales
- Laboratory of Zoology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | - Olga Paiva Oliveira
- Laboratory of Zoology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | - Diego Alves Teles
- Laboratory of Zoology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | | | | | - Henrique Douglas Melo Coutinho
- Laboratory of Microbiology and Molecular Biology, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
| | | | - Marta Regina Kerntopf
- Laboratory of Phamacology and Medicinal Chemistry, Regional University of Cariri-URCA, Pimenta, 63105-000 Crato, CE, Brazil
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Murray PM, Moane S, Collins C, Beletskaya T, Thomas OP, Duarte AWF, Nobre FS, Owoyemi IO, Pagnocca FC, Sette LD, McHugh E, Causse E, Pérez-López P, Feijoo G, Moreira MT, Rubiolo J, Leirós M, Botana LM, Pinteus S, Alves C, Horta A, Pedrosa R, Jeffryes C, Agathos SN, Allewaert C, Verween A, Vyverman W, Laptev I, Sineoky S, Bisio A, Manconi R, Ledda F, Marchi M, Pronzato R, Walsh DJ. Sustainable production of biologically active molecules of marine based origin. N Biotechnol 2013; 30:839-50. [PMID: 23563183 DOI: 10.1016/j.nbt.2013.03.006] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Revised: 03/11/2013] [Accepted: 03/18/2013] [Indexed: 11/24/2022]
Abstract
The marine environment offers both economic and scientific potential which are relatively untapped from a biotechnological point of view. These environments whilst harsh are ironically fragile and dependent on a harmonious life form balance. Exploitation of natural resources by exhaustive wild harvesting has obvious negative environmental consequences. From a European industry perspective marine organisms are a largely underutilised resource. This is not due to lack of interest but due to a lack of choice the industry faces for cost competitive, sustainable and environmentally conscientious product alternatives. Knowledge of the biotechnological potential of marine organisms together with the development of sustainable systems for their cultivation, processing and utilisation are essential. In 2010, the European Commission recognised this need and funded a collaborative RTD/SME project under the Framework 7-Knowledge Based Bio-Economy (KBBE) Theme 2 Programme 'Sustainable culture of marine microorganisms, algae and/or invertebrates for high value added products'. The scope of that project entitled 'Sustainable Production of Biologically Active Molecules of Marine Based Origin' (BAMMBO) is outlined. Although the Union is a global leader in many technologies, it faces increasing competition from traditional rivals and emerging economies alike and must therefore improve its innovation performance. For this reason innovation is placed at the heart of a European Horizon 2020 Strategy wherein the challenge is to connect economic performance to eco performance. This article provides a synopsis of the research activities of the BAMMBO project as they fit within the wider scope of sustainable environmentally conscientious marine resource exploitation for high-value biomolecules.
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Affiliation(s)
- Patrick M Murray
- Department of Applied Science, Limerick Institute of Technology, Limerick, Ireland; Shannon Applied Biotechnology Centre, Hartnett Enterprise Acceleration Centre, Limerick Institute of Technology, Limerick, Ireland
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Beaulieu L, Thibodeau J, Bonnet C, Bryl P, Carbonneau ME. Evidence of anti-proliferative activities in blue mussel (Mytilus edulis) by-products. Mar Drugs 2013; 11:975-90. [PMID: 23535393 PMCID: PMC3705383 DOI: 10.3390/md11040975] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 03/05/2013] [Accepted: 03/05/2013] [Indexed: 11/17/2022] Open
Abstract
Shellfish waste components contain significant levels of high quality protein and are therefore a potential source for biofunctional high-value peptides. The feasibility of applying a pilot scale enzymatic hydrolysis process to whole Mytilus edulis and, by fractionation, recover hydrolysates presenting a biological activity of interest, was evaluated. Fractions were tested on four immortalized cancerous cell lines: A549, BT549, HCT15 and PC3. The 50 kDa fraction, enriched in peptides, presented anti-proliferative activity with all cell lines and results suggest a bioactive molecule synergy within the fraction. At a protein concentration of 44 µg/mL, the 50 kDa fraction induced a mortality of 90% for PC3, 89% for A549, 85% for HCT15 and of 81% for BT549 cell lines. At the low protein concentration of only 11 µg/mL the 50 kDa fraction still entails a cell mortality of 76% for A549 and 87% for PC3 cell lines. The 50 kDa fraction contains 56% of proteins, 3% of lipids and 6% of minerals on a dry weight basis and the lowest levels detected of taurine and methionine and highest levels of threonine, proline and glycine amino acids. The enzymatic hydrolysis process suggests that Mytilus edulis by-products should be viewed as high-valued products with strong potential as anti-proliferative agent and promising active ingredients in functional foods.
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Affiliation(s)
- Lucie Beaulieu
- Department of Biology, Chemistry and Geography, University of Quebec at Rimouski (UQAR), 300 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada; E-Mails: (J.T.); (C.B.)
- Institute of Nutraceuticals and Functional Foods (INAF), Laval University, Quebec City, QC G1V 0A6, Canada
| | - Jacinthe Thibodeau
- Department of Biology, Chemistry and Geography, University of Quebec at Rimouski (UQAR), 300 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada; E-Mails: (J.T.); (C.B.)
- Merinov, Quebec Fisheries and Aquaculture Innovation Centre, 96 montee de Sandy Beach, office 1.07, Gaspe, QC G4X 2V6, Canada; E-Mails: (P.B.); (M.-E.C.)
| | - Claudie Bonnet
- Department of Biology, Chemistry and Geography, University of Quebec at Rimouski (UQAR), 300 Allée des Ursulines, Rimouski, QC G5L 3A1, Canada; E-Mails: (J.T.); (C.B.)
| | - Piotr Bryl
- Merinov, Quebec Fisheries and Aquaculture Innovation Centre, 96 montee de Sandy Beach, office 1.07, Gaspe, QC G4X 2V6, Canada; E-Mails: (P.B.); (M.-E.C.)
| | - Marie-Elise Carbonneau
- Merinov, Quebec Fisheries and Aquaculture Innovation Centre, 96 montee de Sandy Beach, office 1.07, Gaspe, QC G4X 2V6, Canada; E-Mails: (P.B.); (M.-E.C.)
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Pereira AR, Kale AJ, Fenley AT, Byrum T, Debonsi HM, Gilson MK, Valeriote FA, Moore BS, Gerwick WH. The carmaphycins: new proteasome inhibitors exhibiting an α,β-epoxyketone warhead from a marine cyanobacterium. Chembiochem 2012; 13:810-7. [PMID: 22383253 PMCID: PMC3393770 DOI: 10.1002/cbic.201200007] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Indexed: 01/01/2023]
Abstract
Two new peptidic proteasome inhibitors were isolated as trace components from a Curaçao collection of the marine cyanobacterium Symploca sp. Carmaphycin A (1) and carmaphycin B (2) feature a leucine-derived α,β-epoxyketone warhead directly connected to either methionine sulfoxide or methionine sulfone. Their structures were elucidated on the basis of extensive NMR and MS analyses and confirmed by total synthesis, which in turn provided more material for further biological evaluations. Pure carmaphycins A and B were found to inhibit the β5 subunit (chymotrypsin-like activity) of the S. cerevisiae 20S proteasome in the low nanomolar range. Additionally, they exhibited strong cytotoxicity to lung and colon cancer cell lines, as well as exquisite antiproliferative effects in the NCI60 cell-line panel. These assay results as well as initial structural biology studies suggest a distinctive binding mode for these new inhibitors.
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Affiliation(s)
- Alban R. Pereira
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, 9500 Gilman Drive, La Jolla, CA 92093-0212 (USA), Fax: (+1)858-534-0576
| | - Andrew J. Kale
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, 9500 Gilman Drive, La Jolla, CA 92093-0212 (USA), Fax: (+1)858-534-0576
| | - Andrew T. Fenley
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0736 (USA)
| | - Tara Byrum
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, 9500 Gilman Drive, La Jolla, CA 92093-0212 (USA), Fax: (+1)858-534-0576
| | - Hosana M. Debonsi
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, 9500 Gilman Drive, La Jolla, CA 92093-0212 (USA), Fax: (+1)858-534-0576
- Departamento de Física e Química, Universidade de São Paulo, Ribeirão Preto, São Paulo 14040903 (Brazil)
| | - Michael K. Gilson
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0736 (USA)
| | - Frederick A. Valeriote
- Henry Ford Health System, Department of Internal Medicine, Josephine Ford Cancer Center, 440 Burroughs, Room 415, Detroit, MI 48202 (USA)
| | - Bradley S. Moore
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, 9500 Gilman Drive, La Jolla, CA 92093-0212 (USA), Fax: (+1)858-534-0576
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0736 (USA)
| | - William H. Gerwick
- Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California, 9500 Gilman Drive, La Jolla, CA 92093-0212 (USA), Fax: (+1)858-534-0576
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093-0736 (USA)
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Significance of seed culture methods on mycelial morphology and production of a novel anti-cancer anthraquinone by marine mangrove endophytic fungus Halorosellinia sp. (No. 1403). Process Biochem 2012. [DOI: 10.1016/j.procbio.2011.11.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Tong J, Trapido-Rosenthal H, Wang J, Wang Y, Li QX, Lu Y. Antiviral activities and putative identification of compounds in microbial extracts from the Hawaiian coastal waters. Mar Drugs 2012; 10:521-538. [PMID: 22611351 PMCID: PMC3347012 DOI: 10.3390/md10030521] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Revised: 02/03/2012] [Accepted: 02/06/2012] [Indexed: 12/01/2022] Open
Abstract
Marine environments are a rich source of significant bioactive compounds. The Hawaiian archipelago, located in the middle of the Pacific Ocean, hosts diverse microorganisms, including many endemic species. Thirty-eight microbial extracts from Hawaiian coastal waters were evaluated for their antiviral activity against four mammalian viruses including herpes simplex virus type one (HSV-1), vesicular stomatitis virus (VSV), vaccinia virus and poliovirus type one (poliovirus-1) using in vitro cell culture assay. Nine of the 38 microbial crude extracts showed antiviral potencies and three of these nine microbial extracts exhibited significant activity against the enveloped viruses. A secosteroid, 5α(H),17α(H),(20R)-beta-acetoxyergost-8(14)-ene was putatively identified and confirmed to be the active compound in these marine microbial extracts. These results warrant future in-depth tests on the isolation of these active elements in order to explore and validate their antiviral potential as important therapeutic remedies.
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Affiliation(s)
- Jing Tong
- Department of Public Health Sciences, University of Hawaii at Manoa, East-West Road, Honolulu, HI 96822, USA;
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Institute of Traditional Chinese Medicine & Natural Products, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China;
| | - Hank Trapido-Rosenthal
- Center for Marine Microbial Ecology and Diversity, University of Hawaii at Manoa, Honolulu, HI 96822, USA;
| | - Jun Wang
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, East-West Road, Honolulu, HI 96822, USA;
| | - Youwei Wang
- Key Laboratory of Combinatorial Biosynthesis and Drug Discovery (Wuhan University), Ministry of Education, and Institute of Traditional Chinese Medicine & Natural Products, School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China;
| | - Qing X. Li
- Department of Molecular Biosciences and Bioengineering, University of Hawaii at Manoa, East-West Road, Honolulu, HI 96822, USA;
- Authors to whom correspondence should be addressed; (Y.L.); (Q.X.L.); Tel.: +1-808-956-2702 (Y.L.); +1-808-956-2011 (Q.X.L.); Fax: +1-808-956-5818(Y.L.); +1-808-956-3542 (Q.X.L.)
| | - Yuanan Lu
- Department of Public Health Sciences, University of Hawaii at Manoa, East-West Road, Honolulu, HI 96822, USA;
- Authors to whom correspondence should be addressed; (Y.L.); (Q.X.L.); Tel.: +1-808-956-2702 (Y.L.); +1-808-956-2011 (Q.X.L.); Fax: +1-808-956-5818(Y.L.); +1-808-956-3542 (Q.X.L.)
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Cooper EL, Yao D. Diving for drugs: tunicate anticancer compounds. Drug Discov Today 2012; 17:636-48. [PMID: 22406646 DOI: 10.1016/j.drudis.2012.02.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Revised: 12/21/2011] [Accepted: 02/09/2012] [Indexed: 01/11/2023]
Abstract
The marine biosphere boasts tremendous biodiversity replete with structurally unique, active and selective secondary metabolites. Bioprospecting for antitumor compounds has been rewarding, and tunicates have been especially successful in yielding prospective cancer therapies. These compounds are now subjected to clinical trials in Europe and the USA. With the ongoing search for potent and specific anticancer drugs, in this article we discuss the unique perspectives, compounds and opportunities afforded by this rich source of potential pharmaceuticals. We discuss marine-derived antitumor drugs, their structures, and their various types and levels of antitumor activities in bench and bedside efforts.
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Affiliation(s)
- Edwin L Cooper
- David Geffen School of Medicine at UCLA, University of California, Los Angeles, 90095-1763, USA.
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Lee J, Currano JN, Carroll PJ, Joullié MM. Didemnins, tamandarins and related natural products. Nat Prod Rep 2012; 29:404-24. [PMID: 22270031 DOI: 10.1039/c2np00065b] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Since the discovery and isolation of the didemnin family of marine depsipeptides in 1981, the synthesis and biological activity of its congeners have been of great interest to the scientific community. The didemnins have demonstrated antitumor, antiviral, and immunosuppressive activity at low nano- and femtomolar levels. Of the congeners, didemnin B was the first marine natural product to reach phase II clinical trials in the United States, stimulating many analogue syntheses to date. About two decades later, tamandarins A and B were isolated, and were found to possess very similar structure and biological activity to that of the didemnin B. These compounds have shown impressive biological activity and some progress has been made in establishing structure-activity relationships. However, their molecular mechanism of action still remains unclear. This review highlights the long-standing study of didemnins and its critical application towards the understanding of the molecular mechanism of action of tamandarins and their potential use as therapeutic agents.
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Affiliation(s)
- Jisun Lee
- University of Pennsylvania, Department of Chemistry, Philadelphia, Pennsylvania, United States
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A new cytotoxic sesquiterpene quinone produced by Penicillium sp. F00120 isolated from a deep sea sediment sample. Mar Drugs 2012; 10:106-115. [PMID: 22363223 PMCID: PMC3280531 DOI: 10.3390/md10010106] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 12/26/2011] [Accepted: 01/09/2012] [Indexed: 11/29/2022] Open
Abstract
A new fungal strain, displaying strong toxic activity against brine shrimp larvae, was isolated from a deep sea sediment sample collected at a depth of 1300 m. The strain, designated as F00120, was identified as a member of the genus Penicillium on the basis of morphology and ITS sequence analysis. One new sesquiterpene quinone, named penicilliumin A (1), along with two known compounds ergosterol (2) and ergosterol peroxide (3), were isolated and purified from the cultures of F00120 by silica gel column, Sephadex LH-20 column, and preparative thin layer chromatography. Their structures were elucidated by detailed nuclear magnetic resonance (NMR) and mass spectroscopic (MS) analysis as well as comparison with literature data. The new compound penicilliumin A inhibited in vitro proliferation of mouse melanoma (B16), human melanoma (A375), and human cervical carcinoma (Hela) cell lines moderately.
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40
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A New Cytotoxic Sesquiterpene Quinone Produced by Penicillium sp. F00120 Isolated from a Deep Sea Sediment Sample. Mar Drugs 2012. [DOI: 10.3390/md10010106 pmid: 22363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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41
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Edwards V, Benkendorff K, Young F. Marine compounds selectively induce apoptosis in female reproductive cancer cells but not in primary-derived human reproductive granulosa cells. Mar Drugs 2012; 10:64-83. [PMID: 22363221 PMCID: PMC3280530 DOI: 10.3390/md10010064] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 12/19/2011] [Accepted: 12/30/2011] [Indexed: 01/19/2023] Open
Abstract
Anticancer properties of tyrindoleninone and 6-bromoisatin from Dicathais orbita were tested against physiologically normal primary human granulosa cells (HGC) and reproductive cancer cell lines. Tyrindoleninone reduced cancer cell viability with IC₅₀ values of 39 µM (KGN; a tumour-derived granulosa cell line), 39 μM (JAr), and 156 μM (OVCAR-3), compared to 3516 μM in HGC. Apoptosis in HGC's occurred after 4 h at 391 µM tyrindoleninone compared to 20 µM in KGN cells. Differences in apoptosis between HGC and KGN cells were confirmed by TUNEL, with 66 and 31% apoptotic nuclei at 4 h in KGN and HGC, respectively. These marine compounds therefore have potential for development as treatments for female reproductive cancers.
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Affiliation(s)
- Vicki Edwards
- Department of Medical Biotechnology, School of Medicine, Flinders University, GPO Box 2100, Adelaide, S.A. 5001, Australia; (V.E.); (F.Y.)
| | - Kirsten Benkendorff
- School of Biological Sciences, Flinders University, GPO Box 2100, Adelaide, S.A. 5001, Australia
- School of Environmental Sciences and Management, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia
| | - Fiona Young
- Department of Medical Biotechnology, School of Medicine, Flinders University, GPO Box 2100, Adelaide, S.A. 5001, Australia; (V.E.); (F.Y.)
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Abstract
The largely unexplored marine world that presumably harbors the most biodiversity may be the vastest resource to discover novel 'validated' structures with novel modes of action that cover biologically relevant chemical space. Several challenges, including the supply problem and target identification, need to be met for successful drug development of these often complex molecules; however, approaches are available to overcome the hurdles. Advances in technologies such as sampling strategies, nanoscale NMR for structure determination, total chemical synthesis, fermentation and biotechnology are all crucial to the success of marine natural products as drug leads. We illustrate the high degree of innovation in the field of marine natural products, which in our view will lead to a new wave of drugs that flow into the market and pharmacies in the future.
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Ferreira M, Cabado AG, Chapela MJ, Fajardo P, Atanassova M, Garrido A, Vieites JM, Lago J. Cytotoxic activity of extracts of marine sponges from NW Spain on a neuroblastoma cell line. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2011; 32:430-437. [PMID: 22004963 DOI: 10.1016/j.etap.2011.08.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2011] [Accepted: 08/23/2011] [Indexed: 05/31/2023]
Abstract
Six species of marine sponges collected at intertidal and sublittoral sites of the coast of Galicia (NW Spain) were screened for potential cytotoxic properties on Neuroblastoma BE(2)-M17 cell line. Exposure to Halichondria panicea, Pachymatisma johnstonia, Ophlitaspongia seriata and Haliclona sp. aqueous extracts strongly affected cell appearance, inducing loss of neuron-like morphology and the formation of clumps. Extracts from these species also caused significant rates of cell detachment and decrease of mitochondrial membrane potential. Incubation with P. johnstonia, O. seriata and Suberites massa extracts also decreased the rate of cell proliferation. The increase of incubation time enhanced propidium iodide uptake by neuroblastoma cells. Toxic responses triggered by sponge extracts are compatible with apoptotic phenomena in neuroblastoma cells, even though increasing propidium uptake at long periods of exposure might indicate the induction of secondary necrosis. The cytotoxic properties of the tested extracts suggest the presence of compounds with potential pharmacological or biotechnological applications in the screened sponge species.
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Affiliation(s)
- Martiña Ferreira
- ANFACO-CECOPESCA, Area of Microbiology and Toxins, Campus Universitario 16, Vigo, 36310 Vigo (Pontevedra), Spain
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Rocha J, Peixe L, Gomes NC, Calado R. Cnidarians as a source of new marine bioactive compounds--an overview of the last decade and future steps for bioprospecting. Mar Drugs 2011; 9:1860-1886. [PMID: 22073000 PMCID: PMC3210609 DOI: 10.3390/md9101860] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 09/20/2011] [Accepted: 09/21/2011] [Indexed: 12/14/2022] Open
Abstract
Marine invertebrates are rich sources of bioactive compounds and their biotechnological potential attracts scientific and economic interest worldwide. Although sponges are the foremost providers of marine bioactive compounds, cnidarians are also being studied with promising results. This diverse group of marine invertebrates includes over 11,000 species, 7500 of them belonging to the class Anthozoa. We present an overview of some of the most promising marine bioactive compounds from a therapeutic point of view isolated from cnidarians in the first decade of the 21st century. Anthozoan orders Alcyonacea and Gorgonacea exhibit by far the highest number of species yielding promising compounds. Antitumor activity has been the major area of interest in the screening of cnidarian compounds, the most promising ones being terpenoids (monoterpenoids, diterpenoids, sesquiterpenoids). We also discuss the future of bioprospecting for new marine bioactive compounds produced by cnidarians.
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Affiliation(s)
- Joana Rocha
- Instituto de Ciencias Biomedicas Abel Salazar, Universidade do Porto, Largo Professor Abel Salazar no. 2, 4099-003 Porto, Portugal
- Departmento de Biologia & CESAM, Universidade de Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal; E-Mail:
| | - Luisa Peixe
- REQUIMTE, Laboratorio de Microbiologia, Faculdade de Farmacia, Universidade do Porto, Rua Anibal Cunha no. 164, 4050-047 Porto, Portugal; E-Mail:
| | - Newton C.M. Gomes
- Departmento de Biologia & CESAM, Universidade de Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal; E-Mail:
| | - Ricardo Calado
- Departmento de Biologia & CESAM, Universidade de Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal; E-Mail:
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Abstract
The largely unexplored marine world that presumably harbors the most biodiversity may be the vastest resource to discover novel 'validated' structures with novel modes of action that cover biologically relevant chemical space. Several challenges, including the supply problem and target identification, need to be met for successful drug development of these often complex molecules; however, approaches are available to overcome the hurdles. Advances in technologies such as sampling strategies, nanoscale NMR for structure determination, total chemical synthesis, fermentation and biotechnology are all crucial to the success of marine natural products as drug leads. We illustrate the high degree of innovation in the field of marine natural products, which in our view will lead to a new wave of drugs that flow into the market and pharmacies in the future.
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Affiliation(s)
- Rana Montaser
- Department of Medicinal Chemistry, University of Florida, Gainesville, FL 32610, USA
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46
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Huang C, Jin H, Song B, Zhu X, Zhao H, Cai J, Lu Y, Chen B, Lin Y. The cytotoxicity and anticancer mechanisms of alterporriol L, a marine bianthraquinone, against MCF-7 human breast cancer cells. Appl Microbiol Biotechnol 2011; 93:777-85. [DOI: 10.1007/s00253-011-3463-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2011] [Revised: 06/21/2011] [Accepted: 06/22/2011] [Indexed: 12/16/2022]
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Lordan S, Ross RP, Stanton C. Marine bioactives as functional food ingredients: potential to reduce the incidence of chronic diseases. Mar Drugs 2011; 9:1056-1100. [PMID: 21747748 PMCID: PMC3131561 DOI: 10.3390/md9061056] [Citation(s) in RCA: 326] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2011] [Revised: 06/02/2011] [Accepted: 06/08/2011] [Indexed: 12/31/2022] Open
Abstract
The marine environment represents a relatively untapped source of functional ingredients that can be applied to various aspects of food processing, storage, and fortification. Moreover, numerous marine-based compounds have been identified as having diverse biological activities, with some reported to interfere with the pathogenesis of diseases. Bioactive peptides isolated from fish protein hydrolysates as well as algal fucans, galactans and alginates have been shown to possess anticoagulant, anticancer and hypocholesterolemic activities. Additionally, fish oils and marine bacteria are excellent sources of omega-3 fatty acids, while crustaceans and seaweeds contain powerful antioxidants such as carotenoids and phenolic compounds. On the basis of their bioactive properties, this review focuses on the potential use of marine-derived compounds as functional food ingredients for health maintenance and the prevention of chronic diseases.
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Affiliation(s)
- Sinéad Lordan
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, Ireland; E-Mails: (S.L.); (R.P.R.)
| | - R. Paul Ross
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, Ireland; E-Mails: (S.L.); (R.P.R.)
| | - Catherine Stanton
- Teagasc Food Research Centre Moorepark, Fermoy, Co. Cork, Ireland; E-Mails: (S.L.); (R.P.R.)
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48
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Mayer AMS, Rodríguez AD, Berlinck RGS, Fusetani N. Marine pharmacology in 2007-8: Marine compounds with antibacterial, anticoagulant, antifungal, anti-inflammatory, antimalarial, antiprotozoal, antituberculosis, and antiviral activities; affecting the immune and nervous system, and other miscellaneous mechanisms of action. Comp Biochem Physiol C Toxicol Pharmacol 2011; 153:191-222. [PMID: 20826228 PMCID: PMC7110230 DOI: 10.1016/j.cbpc.2010.08.008] [Citation(s) in RCA: 119] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2010] [Revised: 08/25/2010] [Accepted: 08/25/2010] [Indexed: 11/23/2022]
Abstract
The peer-reviewed marine pharmacology literature in 2007-8 is covered in this review, which follows a similar format to the previous 1998-2006 reviews of this series. The preclinical pharmacology of structurally characterized marine compounds isolated from marine animals, algae, fungi and bacteria is discussed in a comprehensive manner. Antibacterial, anticoagulant, antifungal, antimalarial, antiprotozoal, antituberculosis and antiviral activities were reported for 74 marine natural products. Additionally, 59 marine compounds were reported to affect the cardiovascular, immune and nervous systems as well as to possess anti-inflammatory effects. Finally, 65 marine metabolites were shown to bind to a variety of receptors and miscellaneous molecular targets, and thus upon further completion of mechanism of action studies, will contribute to several pharmacological classes. Marine pharmacology research during 2007-8 remained a global enterprise, with researchers from 26 countries, and the United States, contributing to the preclinical pharmacology of 197 marine compounds which are part of the preclinical marine pharmaceuticals pipeline. Sustained preclinical research with marine natural products demonstrating novel pharmacological activities, will probably result in the expansion of the current marine pharmaceutical clinical pipeline, which currently consists of 13 marine natural products, analogs or derivatives targeting a limited number of disease categories.
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Affiliation(s)
- Alejandro M S Mayer
- Department of Pharmacology, Chicago College of Osteopathic Medicine, Midwestern University, 555 31st Street, Downers Grove, IL 60515, USA.
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Chen WS, Hou JN, Guo YB, Yang HL, Xie CM, Lin YC, She ZG. Bostrycin inhibits proliferation of human lung carcinoma A549 cells via downregulation of the PI3K/Akt pathway. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2011; 30:17. [PMID: 21303527 PMCID: PMC3041691 DOI: 10.1186/1756-9966-30-17] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 02/08/2011] [Indexed: 11/25/2022]
Abstract
Background Bostrycin is a novel compound isolated from marine fungi that inhibits proliferation of many cancer cells. However, the inhibitory effect of bostrycin on lung cancers has not been reported. This study is to investigate the inhibitory effects and mechanism of bostrycin on human lung cancer cells in vitro. Methods We used MTT assay, flow cytometry, microarray, real time PCR, and Western blotting to detect the effect of bostrycin on A549 human pulmonary adenocarcinoma cells. Results We showed a significant inhibition of cell proliferation and induction of apoptosis in bostrycin-treated lung adenocarcinoma cells. Bostrycin treatment caused cell cycle arrest in the G0/G1 phase. We also found the upregulation of microRNA-638 and microRNA-923 in bostrycin-treated cells. further, we found the downregulation of p110α and p-Akt/PKB proteins and increased activity of p27 protein after bostrycin treatment in A549 cells. Conclusions Our study indicated that bostrycin had a significant inhibitory effect on proliferation of A549 cells. It is possible that upregulation of microRNA-638 and microRNA-923 and downregulaton of the PI3K/AKT pathway proteins played a role in induction of cell cycle arrest and apoptosis in bostrycin-treated cells.
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Affiliation(s)
- Wei-Sheng Chen
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
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Elkin GJ, Rojas JJ, Martínez A. Pharmacological Developments Obtained from Marine Natural Products and Current Pipeline Perspective. Nat Prod Commun 2011. [DOI: 10.1177/1934578x1100600233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Marine organisms represent a new extensive source for bioactive molecules. They have the potential to provide new therapeutic alternatives to treat human diseases. In this paper, we describe and discuss a variety of isolated and semisynthetic molecules obtained from marine sources. These compounds are in phase II, phase III and at the commercialization stage of new drug development. A description of the mechanism of action, dosage used and side effects are also reported. The positive results obtained from these studies have triggered the development of new studies to evaluate the prospects for utilization of marine organisms.
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Affiliation(s)
- Galeano J. Elkin
- Marine Natural Products Research Group, School of Pharmaceutical Chemistry, The University of Antioquia Medellin, Colombia
| | - Jhon J. Rojas
- School of Pharmaceutical Chemistry, University of Antioquia, Medellin, Colombia
| | - Alejandro Martínez
- Marine Natural Products Research Group, School of Pharmaceutical Chemistry, The University of Antioquia Medellin, Colombia
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