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Snega R, Saravanan M. Comment on "Marine bioactive compounds as potential therapeutic inhibitor for oral squamous cell carcinoma (OSCC)". Oral Oncol 2024; 154:106851. [PMID: 38795601 DOI: 10.1016/j.oraloncology.2024.106851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 05/13/2024] [Indexed: 05/28/2024]
Affiliation(s)
- Ramanathan Snega
- AMR & Nanotherapeutics Lab, Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, Tamil Nadu, India
| | - Muthupandian Saravanan
- AMR & Nanotherapeutics Lab, Department of Pharmacology, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, Tamil Nadu, India.
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Goya L, Mateos R. Antioxidant and Anti-inflammatory Effects of Marine Phlorotannins and Bromophenols Supportive of Their Anticancer Potential. Nutr Rev 2024:nuae066. [PMID: 38894623 DOI: 10.1093/nutrit/nuae066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024] Open
Abstract
Following the goal of optimizing nutrition, the food industry has been continuously working on food reformulation, nutritional patterns, functional foods development, and the general promotion of a healthy lifestyle. To this end, the scientific community has been increasingly investigating natural compounds that could prevent or treat chronic diseases. Phlorotannins and bromophenols are phenolic compounds particularly present in marine organisms. There is extensive evidence that shows their potential in the prevention of noncommunicable diseases, including cancer, the second cause of mortality worldwide. Numerous studies have demonstrated the anticarcinogenic activity of polyphenolic algae compounds both in cell culture and experimental animal models. Although recent reviews are also available, the present update focuses on the most recent findings related to the antioxidant/anti-inflammatory effect of seaweed phenolics, as well as their regulatory capacity for new molecular targets. Additionally, the review addresses and discusses the close link between inflammation and oxidative stress, along with their relationship with tumor onset and progression, including the most recent findings supporting this correlation. Although clinical studies are still needed to support this evidence, phlorotannins and bromophenols constitute an emerging bioactive group with high potential as chemopreventive agents and/or potential adjuvants for existing cancer therapies.
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Affiliation(s)
- Luis Goya
- Department of Metabolism and Nutrition, Institute of Food Science, Technology, and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), 28040 Madrid, Spain
| | - Raquel Mateos
- Department of Metabolism and Nutrition, Institute of Food Science, Technology, and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), 28040 Madrid, Spain
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Karuppaiya V, Annamalai A, Krishnamurthy S, Soundarapandian K. Dieckol prevents prostate cancer cell proliferation by transcriptionally attenuating JAK/STAT3 signaling pathway. ENVIRONMENTAL TOXICOLOGY 2024; 39:1187-1196. [PMID: 37886886 DOI: 10.1002/tox.24006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 08/22/2023] [Accepted: 10/09/2023] [Indexed: 10/28/2023]
Abstract
This study delved at how the natural substance dieckol (DCL) prevents prostate cancerous cells from proliferating and migrating by blocking the JAK/STAT3 signaling pathway in PC-3 cells. For numerous tests, the cells were treated to DCL at a range of concentrations (0-20 μM) for 24 h. DCL mediated cytotoxicity was analyzed by MTT assay. To evaluate ROS, DCFH-DA staining was employed. Dual (AO/EtBr) staining was utilized to examine apoptotic changes, and MMP levels in PC-3 cells were examined using the appropriate fluorescent staining assays. By using flow cytometry and western blotting, the protein expressions of cell survival, cell cycle, proliferation, and apoptosis were assessed. The results showed that DCL significantly cytotoxically affects PC-3, and the IC50 was discovered to be 12 μM for 24 h exposure. Furthermore, after DCL treatment in PC-3, considerable ROS generation and increased apoptotic signals were detected. STAT3, JAK1, PCNA, and cyclins D1 and E1 are all suppressed by DCL in PC-3. In addition, DCL therapy in PC-3 dramatically increased pro-apoptotic proteins such Bax, caspase-3, and cytochrome C. Therefore, DCL has been regarded as a chemotherapeutic agent because to its ability to decrease the expression of proteins that control cell proliferation, including STAT3, JAK1, PCNA, and cyclins D1 and E1.
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Affiliation(s)
- Vimala Karuppaiya
- Division of Cancer Nanomedicine, Department of Zoology, Periyar University, Salem, India
| | - Asaikkutti Annamalai
- Department of Biotechnology, School of Lifesciences, Pondicherry University, Puducherry, India
| | - Shanthi Krishnamurthy
- Department of Biochemistry, Prof. Dhanapalan College of Science and Management, Chennai, India
| | - Kannan Soundarapandian
- Division of Cancer Nanomedicine, Department of Zoology, Periyar University, Salem, India
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Amerifar M, Arabnozari H, Shokrzadeh M, Habibi E. Evaluation of antioxidant properties and cytotoxicity of brown algae (nizamuddinia zanardinii) in uterine (hela) and pancreatic cancer cell lines (paca-2). Hum Exp Toxicol 2024; 43:9603271241227228. [PMID: 38238028 DOI: 10.1177/09603271241227228] [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] [Indexed: 01/23/2024]
Abstract
INTRODUCTION Pancreatic cancer and cervical cancer are among the most common cancers. Brown algae have anti-inflammatory, anti-cancer, anti-fungal, antioxidant, and immune-boosting properties. This study investigated the antioxidant properties and the effect of brown algae extract on pancreatic and uterine cancer cells. MATERIALS AND METHODS In this study, Cervical (Hela) and pancreas (Paca-2) cancer cell lines were examined. The algae materials were extracted by sequential maceration method and amount of fucoxanthin content in the sample was determined by using High Performance Liquid Chromatography (HPLC) system. The cytotoxic effect of different concentrations of brown algae was measured by the MTT assay. All statistical calculations for comparing IC50 were analyzed using Graph Pad Prism software. RESULTS the algal sample contained an average of 102.52 ± 0.12 μg of fucoxanthin per 100 g. IC50 for 2, 2-diphenyl-1-picrylhydrazyl (DPPH) and hydrogen peroxide free radical scavenging activity for methanolic extract was 2.02 and 11.98 ± 0.13 respectively. Brown algae in all fractions inhibited cell growth and survival. In Hela cell lines, the methanolic extract was the most effective inhibitor, while in Paca cell lines, hexane and methanolic extracts were particularly potent. The methanolic extract was more toxic than other fractions on Hela and Paca cell lines. CONCLUSION This study highlights brown algae extracts strong anticancer effects on uterine and pancreatic cancer cells, suggesting its potential as a natural anticancer drug. Different fractions of the extract showed superior apoptotic and cytotoxic effects, with higher concentrations leading to increased apoptotic effects and reduced survival rates of cancer cells.
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Affiliation(s)
- Milad Amerifar
- Student Research Committee, Faculty of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hesamoddin Arabnozari
- Student Research Committee, School of Medicine, Babol University of Medical Sciences, Babol, Iran
| | - Mohammad Shokrzadeh
- Pharmaceutical Sciences Research Center, Hemoglobinopathy Institute, Mazandaran University of Medical Sciences, Sari, Iran
| | - Emran Habibi
- Medicinal Plants Research Center, Mazandaran University of Medical Sciences, Sari, Iran
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Simón L, Arazo-Rusindo M, Quest AFG, Mariotti-Celis MS. Phlorotannins: Novel Orally Administrated Bioactive Compounds That Induce Mitochondrial Dysfunction and Oxidative Stress in Cancer. Antioxidants (Basel) 2023; 12:1734. [PMID: 37760037 PMCID: PMC10525198 DOI: 10.3390/antiox12091734] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/29/2023] Open
Abstract
Mitochondrial dysfunction is an interesting therapeutic target to help reduce cancer deaths, and the use of bioactive compounds has emerged as a novel and safe approach to solve this problem. Here, we discuss the information available related to phlorotannins, a type of polyphenol present in brown seaweeds that reportedly functions as antioxidants/pro-oxidants and anti-inflammatory and anti-tumorigenic agents. Specifically, available evidence indicates that dieckol and phloroglucinol promote mitochondrial membrane depolarization and mitochondria-dependent apoptosis. Phlorotannins also reduce pro-tumorigenic, -inflammatory, and -angiogenic signaling mechanisms involving RAS/MAPK/ERK, PI3K/Akt/mTOR, NF-κB, and VEGF. In doing so, they inhibit pathways that favor cancer development and progression. Unfortunately, these compounds are rather labile and, therefore, this review also summarizes approaches permitting the encapsulation of bioactive compounds, like phlorotannins, and their subsequent oral administration as novel and non-invasive therapeutic alternatives for cancer treatment.
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Affiliation(s)
- Layla Simón
- Nutrition and Dietetic School, Facultad de Medicina, Universidad Finis Terrae, Santiago 7501015, Chile
- Cellular Communication Laboratory, Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago 8380000, Chile;
| | - Migdalia Arazo-Rusindo
- Department of Chemical and Bioprocess Engineering, Faculty of Engineering, Pontificia Universidad Católica de Chile, Santiago 7820436, Chile;
| | - Andrew F. G. Quest
- Cellular Communication Laboratory, Center for Studies on Exercise, Metabolism and Cancer (CEMC), Program of Cell and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Santiago 8380000, Chile;
- Advanced Center for Chronic Diseases (ACCDiS), Faculty of Medicine, Universidad de Chile, Santiago 8380000, Chile
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Dini I. The Potential of Algae in the Nutricosmetic Sector. Molecules 2023; 28:molecules28104032. [PMID: 37241773 DOI: 10.3390/molecules28104032] [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: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/28/2023] Open
Abstract
Seaweeds or algae are marine autotrophic organisms. They produce nutrients (e.g., proteins, carbohydrates, etc.) essential for the survival of living organisms as they participate in biochemical processes and non-nutritive molecules (such as dietary fibers and secondary metabolites), which can improve their physiological functions. Seaweed polysaccharides, fatty acids, peptides, terpenoids, pigments, and polyphenols have biological properties that can be used to develop food supplements and nutricosmetic products as they can act as antibacterial, antiviral, antioxidant, and anti-inflammatory compounds. This review examines the (primary and secondary) metabolites produced by algae, the most recent evidence of their effect on human health conditions, with particular attention to what concerns the skin and hair's well-being. It also evaluates the industrial potential of recovering these metabolites from biomass produced by algae used to clean wastewater. The results demonstrate that algae can be considered a natural source of bioactive molecules for well-being formulations. The primary and secondary metabolites' upcycling can be an exciting opportunity to safeguard the planet (promoting a circular economy) and, at the same time, obtain low-cost bioactive molecules for the food, cosmetic, and pharmaceutical industries from low-cost, raw, and renewable materials. Today's lack of methodologies for recovering bioactive molecules in large-scale processes limits practical realization.
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Affiliation(s)
- Irene Dini
- Department of Pharmacy, University of Naples Federico II, Via Domenico Montesano 49, 80131 Napoli, Italy
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Pradhan B, Ki JS. Antioxidant and chemotherapeutic efficacies of seaweed-derived phlorotannins in cancer treatment: A review regarding novel anticancer drugs. Phytother Res 2023; 37:2067-2091. [PMID: 36971337 DOI: 10.1002/ptr.7809] [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: 10/28/2022] [Revised: 02/17/2023] [Accepted: 03/13/2023] [Indexed: 03/29/2023]
Abstract
The ineffectiveness of traditional cancer therapies due to drug resistance, nontargeted delivery, and chemotherapy-associated adverse side effects has shifted attention to bioactive phytochemicals. Consequently, research efforts toward screening and identification of natural compounds with anticancer properties have increased in recent years. Marine seaweed-derived bioactive compounds, such as polyphenolic compounds, have exhibited anticancer properties. Phlorotannins (PTs), a major group of seaweed-derived polyphenolic compounds, have emerged as powerful chemopreventive and chemoprotective compounds, regulating apoptotic cell death pathways both in vitro and in vivo. In this context, this review focuses on the anticancer activity of polyphenols isolated from brown algae, with a special reference to PTs. Furthermore, we highlight the antioxidant effects of PTs and discuss how they can impact cell survival and tumor development and progression. Moreover, we discussed the potential therapeutic application of PTs as anticancer agents, having molecular mechanisms involving oxidative stress reduction. We have also discussed patents or patent applications that apply PTs as major components of antioxidant and antitumor products. With this review, researcher may gain new insights into the potential novel role of PTs, as well as uncover a novel cancer-prevention mechanism and improve human health.
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Affiliation(s)
- Biswajita Pradhan
- Department of Biotechnology, Sangmyung University, Seoul, 03016, South Korea
- School of Biological Sciences, AIPH University, Bhubaneswar, 752101, India
| | - Jang-Seu Ki
- Department of Biotechnology, Sangmyung University, Seoul, 03016, South Korea
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Dai W, Dai YG, Ren DF, Zhu DW. Dieckol, a natural polyphenolic drug, inhibits the proliferation and migration of colon cancer cells by inhibiting PI3K, AKT, and mTOR phosphorylation. J Biochem Mol Toxicol 2023; 37:e23313. [PMID: 36683349 DOI: 10.1002/jbt.23313] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 12/07/2022] [Accepted: 01/05/2023] [Indexed: 01/24/2023]
Abstract
This study investigated that dieckol (DKL), a natural drug, inhibits colon cancer cell proliferation and migration by inhibiting phosphoinositide-3-kinase (PI3K), protein kinase B (AKT), and mammalian target of rapamycin (mTOR) phosphorylation in HCT-116 cells. The cells were treated with DKL in various concentrations (32 and 50 μM) for 24 h and then analyzed for various experiments. MTT (tetrazolium bromide) and crystal violet assay investigated DKL-mediated cytotoxicity. Dichlorodihydrofluorescein diacetate staining was used to assess the reactive oxygen species (ROS) measurement, and apoptotic changes were studied by dual acridine orange and ethidium bromide staining. Protein expression of cell survival, cell cycle, proliferation, and apoptosis protein was evaluated by western blot analysis. Results indicated that DKL produces significant cytotoxicity in HCT-116, and the half-maximal inhibitory concentration was found to be 32 μM for 24-h incubation. Moreover, effective production of ROS and enhanced apoptotic signs were observed upon DKL treatment in HCT-116. DKL induces the expression of phosphorylated PI3K, AKT, and mToR-associated enhanced expression of cyclin-D1, proliferating cell nuclear antigen, cyclin-dependent kinase (CDK)-4, CDK-6, and Bcl-2 in HCT-116. In addition, proapoptotic proteins such as Bax, caspase-9, and caspase-3 were significantly enhanced by DKL treatment in HCT-116. Hence, DKL has been considered a chemotherapeutic drug by impeding the expression of PI3K-, AKT-, and mTOR-mediated inhibition of proliferation and cell cycle-regulating proteins.
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Affiliation(s)
- Wei Dai
- Department of Clinical Laboratory, Ganzhou People's Hospital, Jiangxi, Ganzhou, China
| | - Yong Gang Dai
- Department of Clinical Laboratory, Shandong Provincial Third Hospital, Jinan, Shandong, China
| | - Dong Feng Ren
- Department of Oncology, The First Hospital of Yulin, Shaanxi, Yulin, China
| | - Da Wei Zhu
- Department of Gastroenterology, Hongze District People's Hospital, Jiangsu, Huai'an, China
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Zheng H, Zhao Y, Guo L. A Bioactive Substance Derived from Brown Seaweeds: Phlorotannins. Mar Drugs 2022; 20:742. [PMID: 36547889 PMCID: PMC9785976 DOI: 10.3390/md20120742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Phlorotannins are a type of natural active substance extracted from brown algae, which belong to a type of important plant polyphenol. Phloroglucinol is the basic unit in its structure. Phlorotannins have a wide range of biological activities, such as antioxidant, antibacterial, antiviral, anti-tumor, anti-hypertensive, hypoglycemic, whitening, anti-allergic and anti-inflammatory, etc. Phlorotannins are mainly used in the fields of medicine, food and cosmetics. This paper reviews the research progress of extraction, separation technology and biological activity of phlorotannins, which will help the scientific community investigate the greater biological significance of phlorotannins.
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Affiliation(s)
- Hongli Zheng
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
- Jiangsu Key Laboratory of Marine Biotechnology, School of Food Science and Engineering, Jiangsu Ocean University, Lianyungang 222005, China
| | - Yanan Zhao
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
- Jiangsu Key Laboratory of Marine Biotechnology, School of Food Science and Engineering, Jiangsu Ocean University, Lianyungang 222005, China
| | - Lei Guo
- Jiangsu Key Laboratory of Marine Bioresources and Environment, Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, Lianyungang 222005, China
- Jiangsu Key Laboratory of Marine Biotechnology, School of Food Science and Engineering, Jiangsu Ocean University, Lianyungang 222005, China
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Jo MH, Kim YT, Park SJ. Dieckol Inhibits Autophagic Flux and Induces Apoptotic Cell Death in A375 Human Melanoma Cells via Lysosomal Dysfunction and Mitochondrial Membrane Impairment. Int J Mol Sci 2022; 23:ijms232214149. [PMID: 36430634 PMCID: PMC9696613 DOI: 10.3390/ijms232214149] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/11/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022] Open
Abstract
Dieckol is a natural brown algal-derived polyphenol and its cytotoxic potential against various types of cancer cells has been studied. However, the effects of dieckol on autophagy in cancer cells remain unknown. Here, we show that dieckol inhibits the growth of A375 human melanoma cells by inducing apoptotic cell death, which is associated with lysosomal dysfunction and the inhibition of autophagic flux. Dieckol induces autophagosome accumulation by inhibiting autophagosome-lysosome fusion. Moreover, dieckol not only triggers lysosomal membrane permeabilization, followed by an increase in lysosomal pH and the inactivation of cathepsin B and D, but also causes the loss of mitochondrial membrane potential. Importantly, a cathepsin D inhibitor partially relieved dieckol-induced mitochondrial membrane impairment and caspase-mediated apoptosis. Collectively, our findings indicate that dieckol is a novel autophagy inhibitor that induces apoptosis-mediated cell death via lysosomal dysfunction and mitochondrial membrane impairment in A375 human melanoma cells. This suggests the novel potential value of dieckol as a chemotherapeutic drug candidate for melanoma treatment.
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Affiliation(s)
- Min-Hee Jo
- Department of Chemistry, Pukyong National University, Busan 48513, Republic of Korea
| | - Yong-Tae Kim
- Department of Food Science & Biotechnology, Kunsan National University, Gunsan 54150, Republic of Korea
- Correspondence: (Y.-T.K.); (S.J.P.)
| | - Sun Joo Park
- Department of Chemistry, Pukyong National University, Busan 48513, Republic of Korea
- Correspondence: (Y.-T.K.); (S.J.P.)
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Son MJ, Kim T, Lee SW. Facile synthesis of fluorescent mesoporous nanocarriers with pH-sensitive controlled release of naturally derived dieckol. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Shin HC, Kim Y, Choi J, Kang HB, Han SY, Park K, Hwang HJ. Regioselective Synthesis of 6- O-Acetyl Dieckol and Its Selective Cytotoxicity against Non-Small-Cell Lung Cancer Cells. Mar Drugs 2022; 20:683. [PMID: 36355006 PMCID: PMC9695823 DOI: 10.3390/md20110683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/21/2022] [Accepted: 10/24/2022] [Indexed: 12/03/2022] Open
Abstract
Dieckol, a phlorotannin from Ecklonia cava, has shown potential for use as an anticancer agent that selectively kills cancer cells. However, it is necessary to amplify its potency without damaging its inherent safety in order to develop it as a competitive chemotherapeutic. Here, we explored the controlled O-acylations of dieckol. Acyl groups could be consistently introduced to the 6-O position of dieckol with a high regioselectivity, which was confirmed by NOESY, HMBC and HSQC spectroscopies. In cytotoxicity studies on the newly synthesized 6-O-acetyl, 6-O-benzoyl dieckols and previously synthesized 6-O-alkyl dieckols against A549 vs. normal cells, all of the derivatives showed low cytotoxicity in normal cells with an IC50 of 481-719 μM, and highly structure-dependent cytotoxicity in A549 cells with an IC50 of 7.02 (acetyl)-842.26 (benzyl) μM. The selectivity index also showed a large structure dependency in the range of 0.67 (benzyl)-68.58 (acetyl). An analysis of the structure-activity relationship indicated that the activity was dramatically reduced in the presence of a benzene ring and was highly increased in the presence of small polar substituents. Conclusions: Controlled mono-O-modifications of dieckol could be a powerful tool to enhance the anticancer activity of dieckol, thus contributing to the development strategy for dieckol-based chemotherapeutics.
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Affiliation(s)
- Hyeon-Cheol Shin
- Center for Molecular Intelligence, The State University of New York, Korea, 119 Songdomunhwa-ro, Yeonsu-gu, Incheon 21985, Korea
| | - Yongkyun Kim
- School of Chemical Engineering and Material Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 03722, Korea
| | - Jaeyeong Choi
- School of Chemical Engineering and Material Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 03722, Korea
| | - Hyun Bae Kang
- Healinnols Inc., 1662 Yuseong-daero, Yuseong-gu, Daejeon 34054, Korea
| | - Seung-Yun Han
- College of Medicine, Konyang University, 158 Gwanjeodong-ro, Seo-gu, Daejeon 35365, Korea
| | - Kwangyong Park
- School of Chemical Engineering and Material Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 03722, Korea
| | - Hye Jeong Hwang
- Center for Molecular Intelligence, The State University of New York, Korea, 119 Songdomunhwa-ro, Yeonsu-gu, Incheon 21985, Korea
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Liu Y, Cummins SF, Zhao M. A Genomics Resource for 12 Edible Seaweeds to Predict Seaweed-Secreted Peptides with Potential Anti-Cancer Function. BIOLOGY 2022; 11:biology11101458. [PMID: 36290362 PMCID: PMC9598510 DOI: 10.3390/biology11101458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/25/2022] [Accepted: 09/27/2022] [Indexed: 11/06/2022]
Abstract
Seaweeds are multicellular marine macroalgae with natural compounds that have potential anticancer activity. To date, the identification of those compounds has relied on purification and assay, yet few have been documented. Additionally, the genomes and associated proteomes of edible seaweeds that have been identified thus far are scattered among different resources and with no systematic summary available, which hinders the development of a large-scale omics analysis. To enable this, we constructed a comprehensive genomics resource for the edible seaweeds. These data could be used for systematic metabolomics and a proteome search for anti-cancer compound and peptides. In brief, we integrated and annotated 12 publicly available edible seaweed genomes (8 species and 268,071 proteins). In addition, we integrate the new seaweed genomic resources with established cancer bioinformatics pipelines to help identify potential seaweed proteins that could help mitigate the development of cancer. We present 7892 protein domains that were predicted to be associated with cancer proteins based on a protein domain-domain interaction. The most enriched protein families were associated with protein phosphorylation and insulin signalling, both of which are recognised to be crucial molecular components for patient survival in various cancers. In addition, we found 6692 seaweed proteins that could interact with over 100 tumour suppressor proteins, of which 147 are predicted to be secreted proteins. In conclusion, our genomics resource not only may be helpful in exploring the genomics features of these edible seaweed but also may provide a new avenue to explore the molecular mechanisms for seaweed-associated inhibition of human cancer development.
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Affiliation(s)
- Yining Liu
- The School of Public Health, Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou 510180, China
| | - Scott F. Cummins
- Seaweed Research Group, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia
| | - Min Zhao
- Seaweed Research Group, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia
- School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD 4558, Australia
- Correspondence: ; Tel.: +61-07-54563402
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Seaweeds in the Oncology Arena: Anti-Cancer Potential of Fucoidan as a Drug—A Review. Molecules 2022; 27:molecules27186032. [PMID: 36144768 PMCID: PMC9506145 DOI: 10.3390/molecules27186032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
Marine natural products are a discerning arena to search for the future generation of medications to treat a spectrum of ailments. Meanwhile, cancer is becoming more ubiquitous over the world, and the likelihood of dying from it is rising. Surgery, radiation, and chemotherapy are the mainstays of cancer treatment worldwide, but their extensive side effects limit their curative effect. The quest for low-toxicity marine drugs to prevent and treat cancer is one of the current research priorities of researchers. Fucoidan, an algal sulfated polysaccharide, is a potent therapeutic lead candidate against cancer, signifying that far more research is needed. Fucoidan is a versatile, nontoxic marine-origin heteropolysaccharide that has received much attention due to its beneficial biological properties and safety. Fucoidan has been demonstrated to exhibit a variety of conventional bioactivities, such as antiviral, antioxidant, and immune-modulatory characteristics, and anticancer activity against a wide range of malignancies has also recently been discovered. Fucoidan inhibits tumorigenesis by prompting cell cycle arrest and apoptosis, blocking metastasis and angiogenesis, and modulating physiological signaling molecules. This review compiles the molecular and cellular aspects, immunomodulatory and anticancer actions of fucoidan as a natural marine anticancer agent. Specific fucoidan and membranaceous polysaccharides from Ecklonia cava, Laminaria japonica, Fucus vesiculosus, Astragalus, Ascophyllum nodosum, Codium fragile serving as potential anticancer marine drugs are discussed in this review.
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Silva A, Cassani L, Grosso C, Garcia-Oliveira P, Morais SL, Echave J, Carpena M, Xiao J, Barroso MF, Simal-Gandara J, Prieto MA. Recent advances in biological properties of brown algae-derived compounds for nutraceutical applications. Crit Rev Food Sci Nutr 2022; 64:1283-1311. [PMID: 36037006 DOI: 10.1080/10408398.2022.2115004] [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] [Indexed: 11/03/2022]
Abstract
The increasing demand for nutraceuticals in the circular economy era has driven the research toward studying bioactive compounds from renewable underexploited resources. In this regard, the exploration of brown algae has shown significant growth and maintains a great promise for the future. One possible explanation could be that brown algae are rich sources of nutritional compounds (polyunsaturated fatty acids, fiber, proteins, minerals, and vitamins) and unique metabolic compounds (phlorotannins, fucoxanthin, fucoidan) with promising biological activities that make them good candidates for nutraceutical applications with increased value-added. In this review, a deep description of bioactive compounds from brown algae is presented. In addition, recent advances in biological activities ascribed to these compounds through in vitro and in vivo assays are pointed out. Delivery strategies to overcome some drawbacks related to the direct application of algae-derived compounds (low solubility, thermal instability, bioavailability, unpleasant organoleptic properties) are also reviewed. Finally, current commercial and legal statuses of ingredients from brown algae are presented, considering future therapeutical and market perspectives as nutraceuticals.
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Affiliation(s)
- Aurora Silva
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - Lucia Cassani
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Clara Grosso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - Paula Garcia-Oliveira
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
| | - Stephanie L Morais
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - Javier Echave
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
| | - Maria Carpena
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
- International Research Center for Food Nutrition and Safety, Jiangsu University, Zhenjiang, China
- Key Laboratory of Coarse Cereal Processing, Ministry of Agriculture and Rural Affairs, Chengdu University, Chengdu, China
| | - M Fatima Barroso
- REQUIMTE/LAQV, Instituto Superior de Engenharia do Porto, Instituto Politécnico do Porto, Porto, Portugal
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
| | - Miguel A Prieto
- Nutrition and Bromatology Group, Faculty of Food Science and Technology, Ourense Campus, Universidade de Vigo, Ourense, Spain
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Bragança, Portugal
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Monteiro P, Lomartire S, Cotas J, Marques JC, Pereira L, Gonçalves AMM. Call the Eckols: Present and Future Potential Cancer Therapies. Mar Drugs 2022; 20:387. [PMID: 35736190 PMCID: PMC9230804 DOI: 10.3390/md20060387] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/01/2022] [Accepted: 06/06/2022] [Indexed: 02/07/2023] Open
Abstract
In recent years, an increased interest in marine macroalgae bioactive compounds has been recorded due to their benefits to human health and welfare. Several of their bioactivities have been demonstrated, such as anti-inflammatory, antioxidant, anticarcinogenic, antibacterial and antiviral behavior. However, there still lacks a clear definition regarding how these compounds exert their bioactive properties. Of all the bioactive compounds derived from marine macroalgae, attention has been focused on phenolic compounds, specifically in phlorotannins, due to their potential for biomedical applications. Phlorotannins are a diverse and wide group of phenolic compounds, with several structural variations based on the monomer phloroglucinol. Among the diverse phlorotannin structures, the eckol-family of phlorotannins demonstrates remarkable bioactivity, notably their anti-tumoral properties. However, the molecular mechanisms by which this activity is achieved remain elusive and sparse. This review focuses on the described molecular mechanisms of anti-tumoral effects by the eckol family of compounds and the future prospects of these molecules for potential application in oncology therapies.
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Affiliation(s)
- Pedro Monteiro
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - Silvia Lomartire
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - João Cotas
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - João C. Marques
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - Leonel Pereira
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
| | - Ana M. M. Gonçalves
- University of Coimbra, MARE—Marine and Environmental Sciences Centre, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal; (P.M.); (S.L.); (J.C.); (J.C.M.); (L.P.)
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
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Khan F, Jeong GJ, Khan MSA, Tabassum N, Kim YM. Seaweed-Derived Phlorotannins: A Review of Multiple Biological Roles and Action Mechanisms. Mar Drugs 2022; 20:384. [PMID: 35736187 PMCID: PMC9227776 DOI: 10.3390/md20060384] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/01/2022] [Accepted: 06/04/2022] [Indexed: 12/31/2022] Open
Abstract
Phlorotannins are a group of phenolic secondary metabolites isolated from a variety of brown algal species belonging to the Fucaceae, Sargassaceae, and Alariaceae families. The isolation of phlorotannins from various algal species has received a lot of interest owing to the fact that they have a range of biological features and are very biocompatible in their applications. Phlorotannins have a wide range of therapeutic biological actions, including antimicrobial, antidiabetic, antioxidant, anticancer, anti-inflammatory, anti-adipogenesis, and numerous other biomedical applications. The current review has extensively addressed the application of phlorotannins, which have been extensively investigated for the above-mentioned biological action and the underlying mechanism of action. Furthermore, the current review offers many ways to use phlorotannins to avoid certain downsides, such as low stability. This review article will assist the scientific community in investigating the greater biological significance of phlorotannins and developing innovative techniques for treating both infectious and non-infectious diseases in humans.
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Affiliation(s)
- Fazlurrahman Khan
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Korea
| | - Geum-Jae Jeong
- Department of Food Science and Technology, Pukyong National University, Busan 48513, Korea;
| | - Mohd Sajjad Ahmad Khan
- Department of Basic Sciences, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 34212, Saudi Arabia;
| | - Nazia Tabassum
- Industry 4.0 Convergence Bionics Engineering, Pukyong National University, Busan 48513, Korea;
| | - Young-Mog Kim
- Research Center for Marine Integrated Bionics Technology, Pukyong National University, Busan 48513, Korea
- Department of Food Science and Technology, Pukyong National University, Busan 48513, Korea;
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Matulja D, Vranješević F, Kolympadi Markovic M, Pavelić SK, Marković D. Anticancer Activities of Marine-Derived Phenolic Compounds and Their Derivatives. Molecules 2022; 27:molecules27041449. [PMID: 35209235 PMCID: PMC8879422 DOI: 10.3390/molecules27041449] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 02/15/2022] [Accepted: 02/19/2022] [Indexed: 12/24/2022] Open
Abstract
Since the middle of the last century, marine organisms have been identified as producers of chemically and biologically diverse secondary metabolites which have exerted various biological activities including anticancer, anti-inflammatory, antioxidant, antimicrobial, antifouling and others. This review primarily focuses on the marine phenolic compounds and their derivatives with potent anticancer activity, isolated and/or modified in the last decade. Reports on the elucidation of their structures as well as biosynthetic studies and total synthesis are also covered. Presented phenolic compounds inhibited cancer cells proliferation or migration, at sub-micromolar or nanomolar concentrations (lamellarins D (37), M (38), K (39), aspergiolide B (41), fradimycin B (62), makulavamine J (66), mayamycin (69), N-acetyl-N-demethylmayamycin (70) or norhierridin B (75)). In addition, they exhibited anticancer properties by a diverse biological mechanism including induction of apoptosis or inhibition of cell migration and invasive potential. Finally, phlorotannins 1–7 and bromophenols 12–29 represent the most researched phenolic compounds, of which the former are recognized as protective agents against UVB or gamma radiation-induced skin damages. Finally, phenolic metabolites were assorted into six main classes: phlorotannins, bromophenols, flavonoids, coumarins, terpenophenolics, quinones and hydroquinones. The derivatives that could not be attributed to any of the above-mentioned classes were grouped in a separate class named miscellaneous compounds.
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Affiliation(s)
- Dario Matulja
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (D.M.); (F.V.); (M.K.M.)
| | - Filip Vranješević
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (D.M.); (F.V.); (M.K.M.)
| | - Maria Kolympadi Markovic
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (D.M.); (F.V.); (M.K.M.)
| | - Sandra Kraljević Pavelić
- Faculty of Health Studies, University of Rijeka, Viktora Cara Emina 5, 51000 Rijeka, Croatia
- Correspondence: (S.K.P.); (D.M.); Tel.: +385-51-688-266 (S.K.P.); +385-91-500-8676 (D.M.)
| | - Dean Marković
- Department of Biotechnology, University of Rijeka, Radmile Matejčić 2, 51000 Rijeka, Croatia; (D.M.); (F.V.); (M.K.M.)
- Correspondence: (S.K.P.); (D.M.); Tel.: +385-51-688-266 (S.K.P.); +385-91-500-8676 (D.M.)
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19
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Bai Y, Chen X, Qi H. Characterization and bioactivity of phlorotannin loaded protein-polysaccharide nanocomplexes. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112998] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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20
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Wang H, Yang L, Chao J. Antiosteoporosis and bone protective effect of dieckol against glucocorticoid-induced osteoporosis in rats. Front Endocrinol (Lausanne) 2022; 13:932488. [PMID: 36060953 PMCID: PMC9437630 DOI: 10.3389/fendo.2022.932488] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/27/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Glucocorticoids (GCs) induce osteoporosis, which results in fractures in the bond, causing significant morbidity. In the conducted study, we examined the antiosteoporosis effect of dieckol against GC-induced osteoporosis in rats. METHODS Sprague-Dawley (SD) rats were used for the current study and dexamethasone (2.5 mg/kg) induced osteoporosis in the rats that received the dieckol (test) and alendronate (standard) for 20 weeks. Bone turnover parameters, microCT, antioxidant, inflammatory cytokines, nutrient, and hormones parameters. RESULTS Dieckol noticeably suppressed the body weight and boosted the uterine and vagina weight. Dieckol considerably altered the level of trabecular number (Tb. N), the bone volume to total volume (BV/TV), trabecular separation (Tb.Sp), bone surface to bone volume (BS/BV), and trabecular thickness (Tb.Th). Dieckol noticeably (P < 0.001) elevated the level of osteocalcin (OC) and alleviated the level of bone Gla protein (BGP), acid phosphatase (ACP), alkaline phosphatase (ALP), and β-CTx. Dieckol markedly boosted the level of malondialdehyde (MDA) and suppressed the level of glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD) along with the suppression of inflammatory cytokines like TNF-α, IL-1β, and IL-6. Dieckol remarkably increased the level of calcium, potassium, magnesium, and 25 (OH) vitamin D. Dieckol substantially (P < 0.001) boosted the level of estradiol and alleviated the level of parathyroid hormone and tartrate-resistant acid phosphatase (TRAP). Dieckol also suppressed the level of receptor activator of nuclear factor κB ligand (RANKL) and boosted the level of osteoprotegerin (OPG). CONCLUSION Taken together, our data suggest that dieckol demonstrated the anti-osteoporosis effect against GC-induced osteoporosis in rats.
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Polat S, Trif M, Rusu A, Šimat V, Čagalj M, Alak G, Meral R, Özogul Y, Polat A, Özogul F. Recent advances in industrial applications of seaweeds. Crit Rev Food Sci Nutr 2021:1-30. [PMID: 34875930 DOI: 10.1080/10408398.2021.2010646] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Seaweeds have been generally utilized as food and alternative medicine in different countries. They are specifically used as a raw material for wine, cheese, soup, tea, noodles, etc. In addition, seaweeds are potentially good resources of protein, vitamins, minerals, carbohydrates, essential fatty acids and dietary fiber. The quality and quantity of biologically active compounds in seaweeds depend on season and harvesting period, seaweed geolocation as well as ecological factors. Seaweeds or their extracts have been studied as innovative sources for a variety of bioactive compounds such as polyunsaturated fatty acids, polyphenols, carrageenan, fucoidan, etc. These secondary metabolites have been shown to have antioxidant, antimicrobial, antiviral, anticancer, antidiabetic, anti-inflammatory, anti-aging, anti-obesity and anti-tumour properties. They have been used in pharmaceutical/medicine, and food industries since bioactive compounds from seaweeds are regarded as safe and natural. Therefore, this article provides up-to-date information on the applications of seaweed in different industries such as pharmaceutical, biomedical, cosmetics, dermatology and agriculture. Further studies on innovative extraction methods, safety issue and health-promoting properties should be reconsidered. Moreover, the details of the molecular mechanisms of seaweeds and their bioactive compounds for physiological activities are to be clearly elucidated.
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Affiliation(s)
- Sevim Polat
- Department of Marine Biology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Monica Trif
- Centre for Innovative Process Engineering (CENTIV) GmbH, Syke, Germany
| | - Alexandru Rusu
- CENCIRA Agrofood Research and Innovation Centre, Cluj-Napoca, Romania
| | - Vida Šimat
- University Department of Marine Studies, University of Split, Split, Croatia
| | - Martina Čagalj
- University Department of Marine Studies, University of Split, Split, Croatia
| | - Gonca Alak
- Department of Seafood Processing Technology, Faculty of Fisheries, Ataturk University, Erzurum, Turkey
| | - Raciye Meral
- Department of Food Engineering, Faculty of Engineering, Van Yüzüncü Yıl University, Van, Turkey
| | - Yesim Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Abdurahman Polat
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
| | - Fatih Özogul
- Department of Seafood Processing Technology, Faculty of Fisheries, Cukurova University, Adana, Turkey
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Abstract
Cancer remains a major life-threatening disease worldwide. The development of anticancer drugs using natural products obtained from marine organisms has been proposed as an alternative approach. Seaweeds are the mainstay of marine ecosystems; therefore, they are highly enriched with diverse bioactive compounds. In the past decade, a vast number of natural compounds, such as polysaccharides, polyphenols, carotenoids, and terpenoids, have been isolated from seaweeds. Seaweeds have bioactive compounds that show cytotoxicity in various cancer cell lines. These compounds prevent tumor growth by inducing apoptotic cell death and arrest growth by interfering with different kinases and cell cycle pathways. This review discussed the anticancer properties of various bioactive compounds isolated from different types of seaweeds and their therapeutic potential against cancers.
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Tong T, Liu X, Yu C. Extraction and Nano-Sized Delivery Systems for Phlorotannins to Improve Its Bioavailability and Bioactivity. Mar Drugs 2021; 19:625. [PMID: 34822496 PMCID: PMC8622035 DOI: 10.3390/md19110625] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 01/24/2023] Open
Abstract
This review aims to provide an informative summary of studies on extraction and nanoencapsulation of phlorotannins to improve their bioavailability and bioactivity. The origin, structure, and different types of phlorotannins were briefly discussed, and the extraction/purification/characterization methods for phlorotannins were reviewed, with a focus on techniques to improve the bioactivities and bioavailability of phlorotannins via nano-sized delivery systems. Phlorotannins are promising natural polyphenol compounds that have displayed high bioactivities in several areas: anticancer, anti-inflammation, anti-HIV, antidiabetic, and antioxidant. This review aims to provide a useful reference for researchers working on developing better utilization strategies for phlorotannins as pharmaceuticals, therapeuticals, and functional food supplements.
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Affiliation(s)
- Tianjian Tong
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA;
| | - Xiaoyang Liu
- National Engineering Research Center for Seafood, Dalian Polytechnic University, Dalian 116034, China
| | - Chenxu Yu
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA;
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Rajan DK, Mohan K, Zhang S, Ganesan AR. Dieckol: a brown algal phlorotannin with biological potential. Biomed Pharmacother 2021; 142:111988. [PMID: 34371307 DOI: 10.1016/j.biopha.2021.111988] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/24/2021] [Accepted: 07/30/2021] [Indexed: 12/21/2022] Open
Abstract
Dieckol [C36H22O18], is a naturally occurring phlorotannin found in some brown algal species. Dieckol is gaining more attention in the scientific community for its potential biological activities. It has been exhibited a broad spectrum of therapeutic functions including anti-bacterial, anti-cancer, anti-oxidant, anti-aging, anti-diabetic, neuroprotective, and other medicinal applications. Distinct emphasis has been given to extraction, purification, and biomedical applications of dieckol. This critical review comprises of in vitro, in vivo, and in silico biological properties of dieckol. An attempt has been made to evaluate the effectiveness, therapeutical application, and mechanism of dieckol against various diseases. The pharmacological significance, current status and the dosage of multifunctional dieckol and its mechanisms have been discussed in this review. Dieckol plays an important role in apoptosis induction via inhibiting the PI3K, AKT, mTOR and FAK signaling molecules. Dieckol remarkably inhibited the lipid accumulation in high fat diet induced animal models. Dieckol, a multifaceted compound will be beneficial in attenuating the action of various diseases and it could be a potential pharmaceutical and nutraceutical compound. Therefore, the combined effects of dieckol with existing drugs and natural compounds will be studied in future to optimize its benefits. Besides limited information on the toxicological action and dosage administration of dieckol on the human was reported to date. Overall, dieckol is a prospective health-promoting compound for the development of a novel drug against numerous diseases.
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Affiliation(s)
- Durairaj Karthick Rajan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai 608502, Tamil Nadu, India.
| | - Kannan Mohan
- PG and Research Department of Zoology, Sri Vasavi College, Erode 638316, Tamil Nadu, India.
| | - Shubing Zhang
- Department of Cell Biology, School of Life Sciences, Central South University, Changsha, Hunan 410013, PR China
| | - Abirami Ramu Ganesan
- Group of Fermentation and Distillation, Laimburg Research Center, Laimburg 6, I-39040 Post Auer, BZ, Italy
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25
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Dyshlovoy SA. Recent Updates on Marine Cancer-Preventive Compounds. Mar Drugs 2021; 19:md19100558. [PMID: 34677457 PMCID: PMC8537284 DOI: 10.3390/md19100558] [Citation(s) in RCA: 7] [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: 09/09/2021] [Revised: 09/23/2021] [Accepted: 09/24/2021] [Indexed: 12/31/2022] Open
Abstract
The natural compounds derived from marine organisms often exhibit unique chemical structures and potent biological activities. Cancer-preventive activity is one of the rather new activities that has emerged and been extensively studied over the last decades. This review summarizes the recent updates on the marine chemopreventive compounds covering the relevant literature published in 2013-2021 and following the previous comprehensive review by Stonik and Fedorov (Marine Drugs 2014, 12, 636-671). In the current article, only the molecules having an effect on malignant transformation (or related pathway and molecules), cancer stem cells, or carcinogen-induced in vivo tumor development were considered to be "true" cancer-preventive compounds and were, therefore, reviewed. Additionally, particular attention has been given to the molecular mechanisms of chemoprevention, executed by the reported marine compounds.
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Affiliation(s)
- Sergey A Dyshlovoy
- Laboratory of Pharmacology, A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, 690041 Vladivostok, Russia
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Catarino MD, Fernandes I, Oliveira H, Carrascal M, Ferreira R, Silva AMS, Cruz MT, Mateus N, Cardoso SM. Antitumor Activity of Fucus vesiculosus-Derived Phlorotannins through Activation of Apoptotic Signals in Gastric and Colorectal Tumor Cell Lines. Int J Mol Sci 2021; 22:7604. [PMID: 34299223 PMCID: PMC8307049 DOI: 10.3390/ijms22147604] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/08/2021] [Accepted: 07/12/2021] [Indexed: 12/13/2022] Open
Abstract
Seaweeds are one of the largest producers of biomass in the marine environment and a source of multiple bioactive metabolites with valuable health benefits. Among these, phlorotannins have been widely recognized for their promising bioactive properties. The potential antitumor capacity of Fucus vesiculosus-derived phlorotannins remains, however, poorly explored, especially in gastrointestinal tract-related tumors. Therefore, this work aimed to evaluate the cytotoxic properties and possible mechanisms by which F. vesiculosus crude extract (CRD), phlorotannin-rich extract (EtOAc), and further phlorotannin-purified fractions (F1-F9) trigger cell death on different tumor cell lines of the gastrointestinal tract, using flow cytometry. The results indicate that F. vesiculosus samples exert specific cytotoxicity against tumor cell lines without affecting the viability of normal cells. Moreover, it was found that, among the nine different phlorotannin fractions tested, F5 was the most active against both Caco-2 colorectal and MKN-28 gastric cancer cells, inducing death via activation of both apoptosis and necrosis. The UHPLC-MS analysis of this fraction revealed, among others, the presence of a compound tentatively identified as eckstolonol and another as fucofurodiphlorethol, which could be mainly responsible for the promising cytotoxic effects observed in this sample. Overall, the results herein reported contribute to a better understanding of the mechanisms behind the antitumor properties of F. vesiculosus phlorotannin-rich extracts.
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Affiliation(s)
- Marcelo D. Catarino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (R.F.); (A.M.S.S.)
| | - Iva Fernandes
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (I.F.); (H.O.); (N.M.)
| | - Hélder Oliveira
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (I.F.); (H.O.); (N.M.)
| | - Mylene Carrascal
- CNC.IBILI, Faculty of Pharmacy, Health Sciences Campus, University of Coimbra, 3000-548 Coimbra, Portugal; (M.C.); (M.T.C.)
| | - Rita Ferreira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (R.F.); (A.M.S.S.)
| | - Artur M. S. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (R.F.); (A.M.S.S.)
| | - Maria Teresa Cruz
- CNC.IBILI, Faculty of Pharmacy, Health Sciences Campus, University of Coimbra, 3000-548 Coimbra, Portugal; (M.C.); (M.T.C.)
| | - Nuno Mateus
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (I.F.); (H.O.); (N.M.)
| | - Susana M. Cardoso
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (R.F.); (A.M.S.S.)
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Catarino MD, Amarante SJ, Mateus N, Silva AMS, Cardoso SM. Brown Algae Phlorotannins: A Marine Alternative to Break the Oxidative Stress, Inflammation and Cancer Network. Foods 2021; 10:foods10071478. [PMID: 34202184 PMCID: PMC8307260 DOI: 10.3390/foods10071478] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/18/2021] [Accepted: 06/20/2021] [Indexed: 02/07/2023] Open
Abstract
According to the WHO, cancer was responsible for an estimated 9.6 million deaths in 2018, making it the second global leading cause of death. The main risk factors that lead to the development of this disease include poor behavioral and dietary habits, such as tobacco use, alcohol use and lack of fruit and vegetable intake, or physical inactivity. In turn, it is well known that polyphenols are deeply implicated with the lower rates of cancer in populations that consume high levels of plant derived foods. In this field, phlorotannins have been under the spotlight in recent years since they have shown exceptional bioactive properties, with great interest for application in food and pharmaceutical industries. Among their multiple bioactive properties, phlorotannins have revealed the capacity to interfere with several biochemical mechanisms that regulate oxidative stress, inflammation and tumorigenesis, which are central aspects in the pathogenesis of cancer. This versatility and ability to act either directly or indirectly at different stages and mechanisms of cancer growth make these compounds highly appealing for the development of new therapeutical strategies to address this world scourge. The present manuscript revises relevant studies focusing the effects of phlorotannins to counteract the oxidative stress-inflammation network, emphasizing their potential for application in cancer prevention and/or treatment.
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Affiliation(s)
- Marcelo D. Catarino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (S.J.A.); (A.M.S.S.)
| | - Sónia J. Amarante
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (S.J.A.); (A.M.S.S.)
| | - Nuno Mateus
- REQUIMTE/LAQV, Department of Chemistry and Biochemistry, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal;
| | - Artur M. S. Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (S.J.A.); (A.M.S.S.)
| | - Susana M. Cardoso
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (M.D.C.); (S.J.A.); (A.M.S.S.)
- Correspondence: ; Tel.: +351-234-370-360; Fax: +351-234-370-084
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Xiao W, Liu H, Lei Y, Gao H, Alahmadi TA, Peng H, Chen W. Chemopreventive effect of dieckol against 7,12-dimethylbenz(a)anthracene induced skin carcinogenesis model by modulatory influence on biochemical and antioxidant biomarkers. ENVIRONMENTAL TOXICOLOGY 2021; 36:800-810. [PMID: 33347706 DOI: 10.1002/tox.23082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Skin cancer is the commonly found type, which contributes to 40% of whole cancer incidences worldwide. Dieckol is an active compound occurs in the marine algae with many biological benefits. In this exploration, we intended to investigate the therapeutic potency of dieckol against the 7,12-dimethylbenz(a)anthracene (DMBA)-triggered skin carcinogenesis in mice. The skin cancer was stimulated to the animals via injecting the 25 μg of DMBA in 100 μL of acetone in shaved dorsal portion along with the 30 mg/kg of dieckol supplementation for 25 week. The antioxidant enzymes and phase-I and -II detoxifying enzymes in the test animals were inspected via standard protocols. Pro-inflammatory markers (IL-6, IL-1β, and TNF-α) level was examined via ELISA kits and the expression of inflammatory molecular markers like p-NF-ƙB, IƙBα and p-IƙBα were studied through western blotting. The expression status of pro- and anti-apoptotic proteins (p53, Bax, Bcl-2, caspase-3, caspase-9, COX-2, TGF-β1) was investigated via real-time polymerase chain reaction (RT-PCR). Our results revealed that the 30 mg/kg of dieckol supplementation noticeably regained the body and liver weight and also diminished the tumor incidence in the DMBA-incited animals. Dieckol treatment exhibited an enhanced antioxidants (SOD, CAT, GPx, and GSH) and reduced phase-I enzymes Cyt-p450 and Cyt-b5 in the DMBA-induced animals. Dieckol also diminished the pro-inflammatory modulators like IL-6, IL-1β and TNF-α. Western blotting result evidenced that the dieckol was inhibited the IƙB/NF-ƙB signaling pathway. RT-PCR study proved the enhanced expression of pro-apoptotic protein (p53, Bax, caspase-3 and -9) in the dieckol treated animals. Histological study also confirmed the therapeutic benefits of Dieckol. Altogether with these findings, it was clear that the dieckol has appreciably allayed the DMBA activated skin tumorigenesis in the mice and it could be a promising agent to treat the human skin cancer in future.
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Affiliation(s)
- Wenming Xiao
- Department of Burn and Plastic Surgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Hongyan Liu
- Department of Burn and Plastic Surgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Ying Lei
- Department of Burn and Plastic Surgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Huawei Gao
- Department of Burn and Plastic Surgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Tahani Awad Alahmadi
- Department of Pediatrics, College of Medicine, King Saud University, [Medical City], King Khalid University Hospital, Riyadh, Saudi Arabia
| | - Haitao Peng
- Department of Burn and Plastic Surgery, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, Sichuan, China
| | - Wei Chen
- Department of Pathophysiology, Basic Medical School, North Sichuan Medical College, Nanchong, Sichuan, China
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Zhu X, Sun Y, Zhang Y, Su X, Luo C, Alarifi S, Yang H. Dieckol alleviates dextran sulfate sodium-induced colitis via inhibition of inflammatory pathway and activation of Nrf2/HO-1 signaling pathway. ENVIRONMENTAL TOXICOLOGY 2021; 36:782-788. [PMID: 33331035 DOI: 10.1002/tox.23080] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 11/28/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Ulcerative colitis (UC) is the major type of inflammatory ailment with elevated prevalence worldwide. Dieckol (DEK) is a phlorotannin that is extensively found in marine algae and has been found to have different pharmacological properties. Nevertheless, the impact of DEK in UC has not been investigated earlier. Therefore, we appraised DEK's function in dextran sulfate sodium (DSS)-induced UC in the mouse. An overall of 30 mice was randomized into 5 equal groups. Control mice treated with a standard diet (group I), colitis mice challenged with 3% of DSS through drinking water for 7 consecutive days (group II), DEK was supplemented via oral gavage from day 1 to 10 at the dosages of 5, 10, and 15 mg/kg b.wt, respectively. All animals were sacrificed on the 11th day. The body weight (bwt), colon length, disease activity index, malondialdehyde (MDA), myeloperoxidase (MPO), and histological features were observed using suitable techniques, and COX-2 expression was investigated by immunohistochemistry. Moreover, TNF-α, IL-1β, p65, IκBα, HO-1, and Nrf2 expressions were measured using ELISA and RT-PCR techniques, respectively. DEK treatment to the colitis mice considerably lessened, DSS-challenged alterations in body weight, DAI, colonic length shortening and histological changes. DEK exhibited potent antioxidant effects due to the reduced MDA and MPO, and Nrf2 expression markers while the HO-1 marker was augmented. Additionally, DEK also suppressed the expression s of TNF-α, IL-1β, and the p-p65, p-IκBα, and p65 and augmented the expression of IκBα, which eventually proved the anti-inflammatory potential of DEK against the DSS-challenge. Based on these results, DEK has been found effective in mitigating colitis, conceivably alleviating colon inflammation through the NF-κB inhibition and triggering of Nrf2/HO-1 signaling cascade.
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Affiliation(s)
- Xiaoyan Zhu
- Department of Gastroenterology, Jinan Central Hospital Affiliated to Shandong University, Jinan, PR China
| | - Yuanhua Sun
- Department of Surgery, Xintai People's Hospital, Xintai, China
| | - Ying Zhang
- The School Hospital, Shandong University of Finance and Economics, Jinan, China
| | - Xinyou Su
- Department of Oncology, Jinan Central Hospital Affiliated Shandong University, Jinan, PR China
| | - Changqin Luo
- Department of Gastroenterology, Ankang Central Hospital, Ankang City, China
| | - Saud Alarifi
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | - Hui Yang
- Department of Gastroenterology, The Second Affiliated Hospital of Xi'an Jiaotong University Xibei Hospital, Xi'an, China
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Paliwal D, Srivastava S, Sharma PK, Ahmad I. Marine Originated Fused Heterocyclic: Prospective Bioactivity against Cancer. CURRENT TRADITIONAL MEDICINE 2021. [DOI: 10.2174/2215083805666190328205729] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The deep Sea has several herbal sources such as marine organisms. These marine
sources possibly have effective anticancer properties. The fused heterocyclic ring with marine
source has special characteristics with minimum toxicity and with maximum anticancer
effects. The review focused on and classified the prospective lead compounds which have
shown a promising therapeutic range as anticancer agents in clinical and preclinical trials.
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Affiliation(s)
- Deepika Paliwal
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, 201310, India
| | - Saurabh Srivastava
- Department of Oral & Maxillofacial Surgery, King George’s Medical University, Lucknow, UP 226003, India
| | - Pramod Kumar Sharma
- Department of Pharmacy, School of Medical & Allied Sciences, Galgotias University, Greater Noida, 201310, India
| | - Irfan Ahmad
- Department of Clinical Laboratory Science, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
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Shrestha S, Zhang W, Smid S. Phlorotannins: A review on biosynthesis, chemistry and bioactivity. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2020.100832] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Wang J, Li A, Zhang L, Veeraraghavan V, Mohan S. Dieckol attenuates cell proliferation in Molt-4 leukemia cells via modulation of JAK/STAT3 signaling pathway. Pharmacogn Mag 2021. [DOI: 10.4103/pm.pm_2_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Erpel F, Mateos R, Pérez-Jiménez J, Pérez-Correa JR. Phlorotannins: From isolation and structural characterization, to the evaluation of their antidiabetic and anticancer potential. Food Res Int 2020; 137:109589. [PMID: 33233195 DOI: 10.1016/j.foodres.2020.109589] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 06/19/2020] [Accepted: 07/21/2020] [Indexed: 12/12/2022]
Abstract
Phlorotannins are phenolic characteristic compounds of brown seaweeds that are only constituted by phloroglucinol (1,3,5-trihydroxybenzene). They are chain- and net-like structures of diverse molecular weights and have been widely identified in Ecklonia, Eisenia, and Ishige species. Since the time they were discovered in the '70 s, phlorotannins have been suggested as a main factor responsible for the antimicrobial activities attributed to algae extracts. Currently, cumulative in vitro and in vivo research evidence the diverse bioactivities of phlorotannin extracts -such as antidiabetic, anticancer, and antibacterial- pointing out their potential pharmacological and food applications. However, metabolomic studies and clinical trials are scarce, and thus many phlorotannins health-beneficial effects in humans are not yet confirmed. This article reviews recent studies assessing the antidiabetic and anticancer activities of phlorotannins. Particularly, their potential to prevent and control the progression of these non-communicable diseases is discussed, considering in vitro and animal studies, as well as clinical interventions. In contrast to other approaches, we only included investigations with isolated phlorotannins or phlorotannin-rich extracts. Thus, phlorotannin extraction, purification and characterization procedures are briefly addressed. Overall, although considerable research showing the antidiabetic and anticancer potential of phlorotannins is now available, further clinical trials are still necessary to conclusively demonstrate the efficacy of these compounds as adjuvants for diabetes and cancer prevention or treatment.
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Affiliation(s)
- Fernanda Erpel
- Chemical and Bioprocess Engineering Department, School of Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, P.O. Box 306, Santiago 7820436, Chile.
| | - Raquel Mateos
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Calle José Antonio Novais, 10, Madrid 28040, Spain.
| | - Jara Pérez-Jiménez
- Department of Metabolism and Nutrition, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Calle José Antonio Novais, 10, Madrid 28040, Spain.
| | - José Ricardo Pérez-Correa
- Chemical and Bioprocess Engineering Department, School of Engineering, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, P.O. Box 306, Santiago 7820436, Chile.
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Kim Y, Shin J, Kang SM, Song J, Shin HC, Keum YS, Hwang HJ, Park K. Highly Regioselective Preparation and Characterization of New 6-O-Substituted Dieckol Derivatives. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.08.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Xu JW, Yan Y, Wang L, Wu D, Ye NK, Chen SH, Li F. Marine bioactive compound dieckol induces apoptosis and inhibits the growth of human pancreatic cancer cells PANC-1. J Biochem Mol Toxicol 2020; 35:e22648. [PMID: 33051972 DOI: 10.1002/jbt.22648] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 08/26/2020] [Accepted: 09/29/2020] [Indexed: 02/06/2023]
Abstract
Pancreatic cancer, which threatens the global population, is a very aggressive disease with an increased mortality rate. Regarding the types of cancer, pancreatic cancer is prone to display significant resistance to conventional therapy, therefore there 5-year survival rate is only 2% to 9%. Bioactive metabolites of marine algae such as polysaccharides, chitin, carternoids, and sterols possess immense pharmacological properties and tend to be promising alternatives for cancer treatment. Dieckol is one such polyphenolic bioactive compound extracted from brown algae Ecklonia cava, which is proven to possess antioxidant, anti-inflammatory, antibacterial, antidiabetic properties. Therefore in the present study, we analyzed the anticancer property of dieckol on PANC-1 pancreatic carcinoma cells. The cytotoxicity property of dieckol against PANC-1 cells was assessed with 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyl tetrazolium bromide assay, and cell morphological analysis. The generation of reactive oxygen species by dieckol on PANC-1 was analyzed with DCFH-DA staining and confirmed by quantifying antioxidants levels in untreated and dieckol-treated PANC-1 cells. The induction of apoptosis was further evaluated with different staining techniques such as Rhodamine 123 staining, acridine orange/ethidium bromide staining, DAPI staining, propidium iodide staining and was confirmed by estimating the protein expression of apoptotic genes, Bax and Bcl2. Cell adhesion assay and estimation of inflammatory cytokines were performed to detect the inhibitory effect of dieckol against cancer cell progression. It is further confirmed by analyzing cancer cell progression proteins, that is, proliferating cell nuclear antigen and cyclin D1 expressions in untreated and dieckol-treated PANC-1 cells. Our overall results authentically prove dieckol persuasively induces apoptosis and inhibits the progression of human pancreatic cancer cells in vitro, suggesting dieckol as a potent marine-based phytochemical to treat pancreatic cancer.
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Affiliation(s)
- Jian Wei Xu
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Ye Yan
- Departments of Ultrasound, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Lei Wang
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Dong Wu
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Nai Kuan Ye
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Shi Hong Chen
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
| | - Feng Li
- Department of Pancreatic Surgery, General Surgery, Qilu Hospital of Shandong University, Jinan, Shandong, China
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Macroalgae-A Sustainable Source of Chemical Compounds with Biological Activities. Nutrients 2020; 12:nu12103085. [PMID: 33050561 PMCID: PMC7601163 DOI: 10.3390/nu12103085] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/02/2020] [Accepted: 10/06/2020] [Indexed: 12/15/2022] Open
Abstract
Nowadays, one of the most important research directions that concerns the scientific world is to exploit the earth’s resources in a sustainable way. Considering the increasing interest in finding new sources of bioactive molecules and functional products, many research studies focused their interest on demonstrating the sustainability of exploiting marine macroalgal biomass as feedstock for wastewater treatment and natural fertilizer, conversion into green biofuels, active ingredients in pharmaceutical and nutraceutical products, or even for the production of functional ingredients and integration in the human food chain. The objective of the present paper was to provide an overview on the recent progress in the exploitation of different macroalgae species as a source of bioactive compounds, mainly emphasizing the latter published data regarding their potential bioactivities, health benefits, and industrial applications.
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Bai Y, Sun Y, Gu Y, Zheng J, Yu C, Qi H. Preparation, Characterization and Antioxidant Activities of Kelp Phlorotannin Nanoparticles. Molecules 2020; 25:E4550. [PMID: 33027947 PMCID: PMC7582861 DOI: 10.3390/molecules25194550] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 12/18/2022] Open
Abstract
Phlorotannins are a group of major polyphenol secondary metabolites found only in brown algae and are known for their bioactivities and multiple health benefits. However, they can be oxidized due to external factors and their bioavailability is low due to their low water solubility. In this study, the potential of utilizing nanoencapsulation with polyvinylpyrrolidone (PVP) to improve various activities of phlorotannins was explored. Phlorotannins encapsulated by PVP nanoparticles (PPNPS) with different loading ratios were prepared for characterization. Then, the PPNPS were evaluated for in vitro controlled release of phlorotannin, toxicity and antioxidant activities at the ratio of phlorotannin to PVP 1:8. The results indicated that the PPNPS showed a slow and sustained kinetic release of phlorotannin in simulated gastrointestinal fluids, they were non-toxic to HaCaT keratinocytes and they could reduce the generation of endogenous reactive oxygen species (ROS). Therefore, PPNPS have the potential to be a useful platform for the utilization of phlorotannin in both pharmaceutical and cosmetics industries.
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Affiliation(s)
- Ying Bai
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, China; (Y.B.); (Y.S.); (Y.G.)
| | - Yihan Sun
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, China; (Y.B.); (Y.S.); (Y.G.)
| | - Yue Gu
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, China; (Y.B.); (Y.S.); (Y.G.)
| | - Jie Zheng
- Liaoning Ocean and Fisheries Science Research Institute, Dalian 116023, China;
| | - Chenxu Yu
- Department of Agricultural and Biosystems Engineering, Iowa State University, Ames, IA 50011, USA;
| | - Hang Qi
- School of Food Science and Technology, Dalian Polytechnic University, National Engineering Research Center of Seafood, Liaoning Provincial Aquatic Products Deep Processing Technology Research Center, Dalian 116034, China; (Y.B.); (Y.S.); (Y.G.)
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Mateos R, Pérez-Correa JR, Domínguez H. Bioactive Properties of Marine Phenolics. Mar Drugs 2020; 18:E501. [PMID: 33007997 PMCID: PMC7601137 DOI: 10.3390/md18100501] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/15/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023] Open
Abstract
Phenolic compounds from marine organisms are far less studied than those from terrestrial sources since their structural diversity and variability require powerful analytical tools. However, both their biological relevance and potential properties make them an attractive group deserving increasing scientific interest. The use of efficient extraction and, in some cases, purification techniques can provide novel bioactives useful for food, nutraceutical, cosmeceutical and pharmaceutical applications. The bioactivity of marine phenolics is the consequence of their enzyme inhibitory effect and antimicrobial, antiviral, anticancer, antidiabetic, antioxidant, or anti-inflammatory activities. This review presents a survey of the major types of phenolic compounds found in marine sources, as well as their reputed effect in relation to the occurrence of dietary and lifestyle-related diseases, notably type 2 diabetes mellitus, obesity, metabolic syndrome, cancer and Alzheimer's disease. In addition, the influence of marine phenolics on gut microbiota and other pathologies is also addressed.
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Affiliation(s)
- Raquel Mateos
- Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), Spanish National Research Council (CSIC), José Antonio Nováis 10, 28040 Madrid, Spain;
| | - José Ricardo Pérez-Correa
- Department of Chemical and Bioprocess Engineering, Pontificia Universidad Católica de Chile, Macul, Santiago 7810000, Chile;
| | - Herminia Domínguez
- CINBIO, Department of Chemical Engineering, Faculty of Sciences, Campus Ourense, Universidade de Vigo, As Lagoas, 32004 Ourense, Spain
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Cotas J, Leandro A, Monteiro P, Pacheco D, Figueirinha A, Gonçalves AMM, da Silva GJ, Pereira L. Seaweed Phenolics: From Extraction to Applications. Mar Drugs 2020; 18:E384. [PMID: 32722220 PMCID: PMC7460554 DOI: 10.3390/md18080384] [Citation(s) in RCA: 154] [Impact Index Per Article: 38.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022] Open
Abstract
Seaweeds have attracted high interest in recent years due to their chemical and bioactive properties to find new molecules with valuable applications for humankind. Phenolic compounds are the group of metabolites with the most structural variation and the highest content in seaweeds. The most researched seaweed polyphenol class is the phlorotannins, which are specifically synthesized by brown seaweeds, but there are other polyphenolic compounds, such as bromophenols, flavonoids, phenolic terpenoids, and mycosporine-like amino acids. The compounds already discovered and characterized demonstrate a full range of bioactivities and potential future applications in various industrial sectors. This review focuses on the extraction, purification, and future applications of seaweed phenolic compounds based on the bioactive properties described in the literature. It also intends to provide a comprehensive insight into the phenolic compounds in seaweed.
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Affiliation(s)
- João Cotas
- MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3001-456 Coimbra, Portugal; (J.C.); (A.L.); (D.P.); (A.M.M.G.)
| | - Adriana Leandro
- MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3001-456 Coimbra, Portugal; (J.C.); (A.L.); (D.P.); (A.M.M.G.)
| | - Pedro Monteiro
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, Health Sciences Campus, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (P.M.); (G.J.d.S.)
| | - Diana Pacheco
- MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3001-456 Coimbra, Portugal; (J.C.); (A.L.); (D.P.); (A.M.M.G.)
| | - Artur Figueirinha
- LAQV, REQUIMTE, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal;
- Faculty of Pharmacy of University of Coimbra, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Ana M. M. Gonçalves
- MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3001-456 Coimbra, Portugal; (J.C.); (A.L.); (D.P.); (A.M.M.G.)
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Gabriela Jorge da Silva
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, Health Sciences Campus, University of Coimbra, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal; (P.M.); (G.J.d.S.)
| | - Leonel Pereira
- MARE-Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, 3001-456 Coimbra, Portugal; (J.C.); (A.L.); (D.P.); (A.M.M.G.)
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Matulja D, Wittine K, Malatesti N, Laclef S, Turks M, Markovic MK, Ambrožić G, Marković D. Marine Natural Products with High Anticancer Activities. Curr Med Chem 2020; 27:1243-1307. [PMID: 31931690 DOI: 10.2174/0929867327666200113154115] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 12/03/2019] [Accepted: 12/15/2019] [Indexed: 12/13/2022]
Abstract
This review covers recent literature from 2012-2019 concerning 170 marine natural products and their semisynthetic analogues with strong anticancer biological activities. Reports that shed light on cellular and molecular mechanisms and biological functions of these compounds, thus advancing the understanding in cancer biology are also included. Biosynthetic studies and total syntheses, which have provided access to derivatives and have contributed to the proper structure or stereochemistry elucidation or revision are mentioned. The natural compounds isolated from marine organisms are divided into nine groups, namely: alkaloids, sterols and steroids, glycosides, terpenes and terpenoids, macrolides, polypeptides, quinones, phenols and polyphenols, and miscellaneous products. An emphasis is placed on several drugs originating from marine natural products that have already been marketed or are currently in clinical trials.
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Affiliation(s)
- Dario Matulja
- Department of Biotechnology, University of Rijeka, Radmile Matejcic 2, 51000 Rijeka, Croatia
| | - Karlo Wittine
- Department of Biotechnology, University of Rijeka, Radmile Matejcic 2, 51000 Rijeka, Croatia
| | - Nela Malatesti
- Department of Biotechnology, University of Rijeka, Radmile Matejcic 2, 51000 Rijeka, Croatia
| | - Sylvain Laclef
- Laboratoire de Glycochimie, des Antimicrobiens et des Agro-ressources (LG2A), CNRS FRE 3517, 33 rue Saint-Leu, 80039 Amiens, France
| | - Maris Turks
- Faculty of Material Science and Applied Chemistry, Riga Technical University, P. Valdena Str. 3, Riga, LV-1007, Latvia
| | - Maria Kolympadi Markovic
- Department of Physics, and Center for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejcic 2, 51000 Rijeka, Croatia
| | - Gabriela Ambrožić
- Department of Physics, and Center for Micro- and Nanosciences and Technologies, University of Rijeka, Radmile Matejcic 2, 51000 Rijeka, Croatia
| | - Dean Marković
- Department of Biotechnology, University of Rijeka, Radmile Matejcic 2, 51000 Rijeka, Croatia
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Almeida TP, Ramos AA, Ferreira J, Azqueta A, Rocha E. Bioactive Compounds from Seaweed with Anti-Leukemic Activity: A Mini-Review on Carotenoids and Phlorotannins. Mini Rev Med Chem 2020; 20:39-53. [PMID: 30854962 DOI: 10.2174/1389557519666190311095655] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 04/08/2018] [Accepted: 07/23/2018] [Indexed: 12/11/2022]
Abstract
Chronic Myeloid Leukemia (CML) represents 15-20% of all new cases of leukemia and is characterized by an uncontrolled proliferation of abnormal myeloid cells. Currently, the first-line of treatment involves Tyrosine Kinase Inhibitors (TKIs), which specifically inhibits the activity of the fusion protein BCR-ABL. However, resistance, mainly due to mutations, can occur. In the attempt to find more effective and less toxic therapies, several approaches are taken into consideration such as research of new anti-leukemic drugs and "combination chemotherapy" where different drugs that act by different mechanisms are used. Here, we reviewed the molecular mechanisms of CML, the main mechanisms of drug resistance and current strategies to enhance the therapeutic effect of TKIs in CML. Despite major advances in CML treatment, new, more potent anticancer drugs and with fewer side effects are needed. Marine organisms, and particularly seaweed, have a high diversity of bioactive compounds with some of them having anticancer activity in several in vitro and in vivo models. The state-of-art suggests that their use during cancer treatment may improve the outcome. We reviewed here the yet few data supporting anti-leukemic activity of some carotenoids and phlorotannins in some leukemia models. Also, strategies to overcome drug resistance are discussed, particularly the combination of conventional drugs with natural compounds.
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Affiliation(s)
- Tânia P Almeida
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.,Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, no 228, 4050-313 Porto, Portugal.,FCUP - Faculty of Sciences, U. Porto - University of Porto (U.Porto), Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Alice A Ramos
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.,Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, no 228, 4050-313 Porto, Portugal
| | - Joana Ferreira
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.,Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, no 228, 4050-313 Porto, Portugal.,FCUP - Faculty of Sciences, U. Porto - University of Porto (U.Porto), Rua do Campo Alegre, 4169-007 Porto, Portugal
| | - Amaya Azqueta
- Department of Pharmacology and Toxicology, University of Navarra, C/Irunlarrea 1, CP 31008 Pamplona, Navarra, Spain
| | - Eduardo Rocha
- Team of Histomorphology, Physiopathology and Applied Toxicology, CIIMAR/CIMAR - Interdisciplinary Center for Marine and Environmental Research, U.Porto - University of Porto, Avenida General Norton de Matos s/n, 4450-208 Matosinhos, Portugal.,Laboratory of Histology and Embryology, Department of Microscopy, ICBAS - Institute of Biomedical Sciences Abel Salazar, U.Porto - University of Porto, Rua de Jorge Viterbo Ferreira, no 228, 4050-313 Porto, Portugal
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42
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Isoflavones Isolated from the Seeds of Millettia ferruginea Induced Apoptotic Cell Death in Human Ovarian Cancer Cells. Molecules 2020; 25:molecules25010207. [PMID: 31947862 PMCID: PMC6983189 DOI: 10.3390/molecules25010207] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/27/2019] [Accepted: 01/01/2020] [Indexed: 01/23/2023] Open
Abstract
The seeds of Millettia ferruginea are used in fishing, pesticides, and folk medicine in Ethiopia. Here, the anti-cancer effects of isoflavones isolated from M. ferruginea were evaluated in human ovarian cancer cells. We found that isoflavone ferrugone and 6,7-dimethoxy-3’,4’-methylenedioxy-8-(3,3-dimethylallyl)isoflavone (DMI) had potent cytotoxic effects on human ovarian cancer cell A2780 and SKOV3. Ferrugone and DMI treatment increased the sub-G1 cell population in a dose-dependent manner in A2780 cells. The cytotoxic activity of ferrugone and DMI was associated with the induction of apoptosis, as shown by an increase in annexin V-positive cells. Z-VAD-fmk, a broad-spectrum caspase inhibitor, and z-DEVD-fmk, a caspase-3 inhibitor, significantly reversed both the ferrugone and DMI-induced apoptosis, suggesting that cell death stimulated by the isoflavones is mediated by caspase-3-dependent apoptosis. Additionally, ferrugone-induced apoptosis was found to be caspase-8-dependent, while DMI-induced apoptosis was caspase-9-dependent. Notably, DMI, but not ferrugone, increased the intracellular levels of reactive oxygen species (ROS), and antioxidant N-acetyl-L-cysteine (NAC) attenuated the pro-apoptotic activity of DMI. These data suggest that DMI induced apoptotic cell death through the intrinsic pathway via ROS production, while ferrugone stimulated the extrinsic pathway in human ovarian cancer cells.
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43
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Wang C, Li X, Jin L, Zhao Y, Zhu G, Shen W. Dieckol inhibits non-small-cell lung cancer cell proliferation and migration by regulating the PI3K/AKT signaling pathway. J Biochem Mol Toxicol 2019; 33:e22346. [PMID: 31291034 PMCID: PMC6771741 DOI: 10.1002/jbt.22346] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/18/2019] [Accepted: 04/08/2019] [Indexed: 01/02/2023]
Abstract
Non-small-cell lung cancer (NSCLC) is one of the most prevalent type of lung cancers with an increased mortality rate in both developed and developing countries worldwide. Dieckol is one such polyphenolic drug extracted from brown algae which has proven antioxidant and anti-inflammatory properties. In the present study, we evaluated the anticancer property of dieckol against NSCLC cell line A549. The LC50 value of dieckol was found to be 25 µg/mL by performing 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and the antiapoptotic property of dieckol was analyzed by dual staining technique with acridine orange/propidium iodide (AO/PI) stains. It was further confirmed with flow cytometry analysis with Annexin FITC and JC-1 staining and the anti-invasive property was assessed by Transwell assay. The molecular mechanism of dieckol anticancer activity was confirmed by estimating the levels of caspases and by estimating the signaling proteins of Pi3K/AKT/mTOR signaling pathway using the immunoblotting technique. Our data suggest that dieckol is potent anticancer agent, it effectively inhibits the invasive and migratory property A549 cells and it also induces apoptosis via inhibiting Pi3K/AKT/mTOR signaling, activating the tumor suppressor protein E-cadherin signifying that dieckol is potent natural anticancer drug to treat NSCLC.
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Affiliation(s)
- Chun‐Hong Wang
- Department of Oncology and HematologyThe Second Hospital of Jilin UniversityChangchunJilinChina
| | - Xiao‐Feng Li
- Department of Oncology and HematologyThe Second Hospital of Jilin UniversityChangchunJilinChina
| | - Li‐Fang Jin
- Department of Oncology and HematologyThe Second Hospital of Jilin UniversityChangchunJilinChina
| | - Yan Zhao
- Department of Oncology and HematologyThe Second Hospital of Jilin UniversityChangchunJilinChina
| | - Geng‐Jun Zhu
- Department of Oncology and HematologyThe Second Hospital of Jilin UniversityChangchunJilinChina
| | - Wei‐Zhang Shen
- Department of Oncology and HematologyThe Second Hospital of Jilin UniversityChangchunJilinChina
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Zhang MY, Guo J, Hu XM, Zhao SQ, Li SL, Wang J. An in vivo anti-tumor effect of eckol from marine brown algae by improving the immune response. Food Funct 2019; 10:4361-4371. [PMID: 31276149 DOI: 10.1039/c9fo00865a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The anti-cancer activities of brown algae and some active extracts or components from brown algae have been demonstrated. But the anti-tumor activities of eckol, a new natural phlorotannin derived from marine brown algae, are poorly understood. In order to investigate the in vivo anti-tumor effect and its potential mechanisms of eckol in a sarcoma 180 (S180) xenograft-bearing animal model, S180 xenograft-bearing mice were randomly divided into 4 groups: model control, and eckol low-dose (0.25 mg kg-1), middle-dose (0.5 mg kg-1) and high-dose (1.0 mg kg-1) groups. After eckol administration, the tumor inhibition, tumor tissue histology, thymus index and spleen index were measured. The apoptotic tumor cells were detected using the terminal deoxynucleotidyl transferase mediated dUTP nick end labelling (TUNEL) assay. The protein expression levels of cleaved Caspase-3 and Caspase-9 (two key apoptotic proteins), Bcl-2 and Bax (two key anti-apoptosis-related genes), as well as epidermal growth factor receptor (EGFR, a well-known cell proliferation-stimulating molecule in tumorigenesis) and p-EGFR in tumor tissues were determined by western blot. A carbon particle clearance test, measurement of serum cytokine levels, a splenic T lymphocyte proliferation test, and T lymphocyte subpopulation analysis were used to evaluate the effect of eckol on the immune function of tumor-bearing mice. Moreover, CD11c+-dendritic cell (DC) infiltration in tumor tissues was detected by immunohistochemistry, and the surface molecules on bone marrow-derived DCs were analyzed using flow cytometry. The pro-apoptosis and anti-proliferation activities of eckol were manifested by the increased TUNEL-positive apoptotic cells, the upregulated Caspase-3 and Caspase-9 expression, and the downregulated expression of Bcl-2, Bax, EGFR and p-EGFR in eckol-treated transplanted S180 tumors. Most importantly, eckol stimulated the mononuclear phagocytic system, recruited and activated DCs, promoted the tumor-specific Th1 responses, increased the CD4+/CD8+ T lymphocyte ratio, and enhanced cytotoxic T lymphocyte responses in the eckol-treated animals, suggesting its potent stimulatory property on innate and adaptive immune responses. This study suggested that eckol might act as a functional food constituent derived from marine brown algae with a potential in vivo anti-tumor effect achieved by improving the immune response.
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Affiliation(s)
- Meng-Ya Zhang
- Hubei Province Key Laboratory of Occupational Hazard Identification and Control, Wuhan University of Science and Technology, Wuhan, China.
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Mirza-Aghazadeh-Attari M, Ostadian C, Saei AA, Mihanfar A, Darband SG, Sadighparvar S, Kaviani M, Samadi Kafil H, Yousefi B, Majidinia M. DNA damage response and repair in ovarian cancer: Potential targets for therapeutic strategies. DNA Repair (Amst) 2019; 80:59-84. [PMID: 31279973 DOI: 10.1016/j.dnarep.2019.06.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2018] [Revised: 06/01/2019] [Accepted: 06/15/2019] [Indexed: 12/24/2022]
Abstract
Ovarian cancer is among the most lethal gynecologic malignancies with a poor survival prognosis. The current therapeutic strategies involve surgery and chemotherapy. Research is now focused on novel agents especially those targeting DNA damage response (DDR) pathways. Understanding the DDR process in ovarian cancer necessitates having a detailed knowledge on a series of signaling mediators at the cellular and molecular levels. The complexity of the DDR process in ovarian cancer and how this process works in metastatic conditions is comprehensively reviewed. For evaluating the efficacy of therapeutic agents targeting DNA damage in ovarian cancer, we will discuss the components of this system including DDR sensors, DDR transducers, DDR mediators, and DDR effectors. The constituent pathways include DNA repair machinery, cell cycle checkpoints, and apoptotic pathways. We also will assess the potential of active mediators involved in the DDR process such as therapeutic and prognostic candidates that may facilitate future studies.
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Affiliation(s)
- Mohammad Mirza-Aghazadeh-Attari
- Aging Research Institute, Tabriz University of Medical Sciences, Tabriz, Iran; Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Caspian Ostadian
- Department of Biology, Faculty of Science, Urmia University, Urmia, Iran
| | - Amir Ata Saei
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden
| | - Ainaz Mihanfar
- Department of Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Saber Ghazizadeh Darband
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, 171 77, Sweden; Student Research Committee, Urmia University of Medical Sciences, Urmia, Iran
| | - Shirin Sadighparvar
- Neurophysiology Research Center, Urmia University of Medical Sciences, Urmia, Iran
| | - Mojtaba Kaviani
- School of Nutrition and Dietetics, Acadia University, Wolfville, Nova Scotia, Canada
| | | | - Bahman Yousefi
- Molecular MedicineResearch Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Clinical Biochemistry and Laboratory Medicine, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Maryam Majidinia
- Solid Tumor Research Center, Urmia University of Medical Sciences, Urmia, Iran.
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Sadeeshkumar V, Duraikannu A, Aishwarya T, Jayaram P, Ravichandran S, Ganeshamurthy R. Radioprotective efficacy of dieckol against gamma radiation-induced cellular damage in hepatocyte cells. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1031-1041. [PMID: 31028451 DOI: 10.1007/s00210-019-01652-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 04/09/2019] [Indexed: 12/29/2022]
Abstract
Naturally occurring antioxidants prevent or delay the harmful effect of free radical formation and radioprotection. The present study aimed to investigate the radioprotective effect of dieckol, a naturally occurring marine bioactive phenolic compound on lipid peroxidation and antioxidant status, DNA damage, and inflammation in gamma-radiation-induced rat primary hepatocytes. Isolated hepatocyte cells exposed to gamma-radiation showed an increased level of lipid peroxidation markers (thiobarbituric acid reactive substances and lipid hydroperoxides) accompanied with the decrease in the activities of enzymatic (SOD, CAT, and GPx) and non-enzymatic (vitamin C, vitamin E, and GSH) antioxidants associated with increased DNA damage coupled with upregulation of inflammatory proteins (NF-κB and COX-2) compared to control. Treatment of dieckol (5, 10, 20 μM) reduces the γ-radiation-induced toxicity and the associated pro-oxidant and antioxidant imbalance as well as decreasing the DNA damage (tail length, tail moment, %DNA in a tail and olive tail moment) and inflammation in hepatocyte cells. These findings indicate that treatment of dieckol offers protection against γ-radiation-induced cellular damage in the liver cells.
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Affiliation(s)
- Velayutham Sadeeshkumar
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu, 608 502, India. .,Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Chidambaram, Tamil Nadu, 608 002, India.
| | - Arul Duraikannu
- Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Chidambaram, Tamil Nadu, 608 002, India.,Division of Neurology, Department of Medicine & Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada
| | - Thiyagarajan Aishwarya
- Department of Plant Breeding and Genetics, Agricultural College and Research Institute, Killikulam, Vallanadu, Tamil Nadu, 628 252, India
| | - Prithi Jayaram
- Pondicherry Institute of Medical Sciences, Ganapathichettikulam, Kalapet, Puducherry, 605 014, India
| | - Samuthrapandian Ravichandran
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu, 608 502, India
| | - Raghunathan Ganeshamurthy
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu, 608 502, India
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47
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Antioxidant, anti-inflammatory and anticancer potential of natural bioactive compounds from seaweeds. BIOACTIVE NATURAL PRODUCTS 2019. [DOI: 10.1016/b978-0-12-817901-7.00005-8] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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48
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You SH, Kim JS, Kim YS. Apoptosis and Cell Cycle Arrest in Two Human Breast Cancer Cell Lines by Dieckol Isolated from <i>Ecklonia cava</i>. ACTA ACUST UNITED AC 2018. [DOI: 10.14449/jbd.2018.6.2.39] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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49
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Lee S, Youn K, Kim DH, Ahn MR, Yoon E, Kim OY, Jun M. Anti-Neuroinflammatory Property of Phlorotannins from Ecklonia cava on Aβ 25-35-Induced Damage in PC12 Cells. Mar Drugs 2018; 17:E7. [PMID: 30583515 PMCID: PMC6356621 DOI: 10.3390/md17010007] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/19/2018] [Accepted: 12/19/2018] [Indexed: 12/24/2022] Open
Abstract
Alzheimer disease (AD) is a neurodegenerative disorder characterized by excessive accumulation of amyloid-beta peptide (Aβ) and progressive loss of neurons. Therefore, the inhibition of Aβ-induced neurotoxicity is a potential therapeutic approach for the treatment of AD. Ecklonia cava is an edible brown seaweed, which has been recognized as a rich source of bioactive derivatives, mainly phlorotannins. In this study, phlorotannins including eckol, dieckol, 8,8'-bieckol were used as potential neuroprotective candidates for their anti-apoptotic and anti-inflammatory effects against Aβ25-35-induced damage in PC12 cells. Among the tested compounds, dieckol showed the highest effect in both suppressing intracellular oxidative stress and mitochondrial dysfunction and activation of caspase family. Three phlorotannins were found to inhibit TNF-α, IL-1β and PGE₂ production at the protein levels. These result showed that the anti-inflammatory properties of our compounds are related to the down-regulation of proinflammatory enzymes, iNOS and COX-2, through the negative regulation of the NF-κB pathway in Aβ25-35-stimulated PC12 cells. Especially, dieckol showed the strong anti-inflammatory effects via suppression of p38, ERK and JNK. However, 8,8'-bieckol markedly decreased the phosphorylation of p38 and JNK and eckol suppressed the activation of p38. Therefore, the results of this study indicated that dieckol from E. cava might be applied as a drug candidate for the development of new generation therapeutic agents against AD.
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Affiliation(s)
- Seungeun Lee
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Graduate School, Dong-A University, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
| | - Kumju Youn
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
| | - Dong Hyun Kim
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
- Institute of Convergence Bio-Health, Dong-A University, Busan 49315, Korea.
| | - Mok-Ryeon Ahn
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Graduate School, Dong-A University, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
| | - Eunju Yoon
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
| | - Oh-Yoen Kim
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Graduate School, Dong-A University, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
| | - Mira Jun
- Department of Food Science and Nutrition, College of Health Sciences, Dong-A University, 37, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
- Center for Silver-Targeted Biomaterials, Brain Busan 21 Plus Program, Graduate School, Dong-A University, Nakdong-daero 550 beon-gil, Saha-gu, Busan 49315, Korea.
- Institute of Convergence Bio-Health, Dong-A University, Busan 49315, Korea.
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50
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Seaweed Secondary Metabolites In Vitro and In Vivo Anticancer Activity. Mar Drugs 2018; 16:md16110410. [PMID: 30373208 PMCID: PMC6266495 DOI: 10.3390/md16110410] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 12/21/2022] Open
Abstract
Isolation, finding or discovery of novel anticancer agents is very important for cancer treatment, and seaweeds are one of the largest producers of chemically active metabolites with valuable cytotoxic properties, and therefore can be used as new chemotherapeutic agents or source of inspiration to develop new ones. Identification of the more potent and selective anticancer components isolated from brown, green and red seaweeds, as well as studies of their mode of action is very attractive and constitute a small but relevant progress for pharmacological applications. Several researchers have carried out in vitro and in vivo studies in various cell lines and have disclosed the active metabolites among the terpenoids, including carotenoids, polyphenols and alkaloids that can be found in seaweeds. In this review the type of metabolites and their cytotoxic or antiproliferative effects will be discussed additionally their mode of action, structure-activity relationship and selectivity will also be revealed. The diterpene dictyolactone, the sterol cholest-5-en-3β,7α-diol and the halogenated monoterpene halomon are among the reported compounds, the ones that present sub-micromolar cytotoxicity. Additionally, one dimeric sesquiterpene of the cyclolaurane-type, three bromophenols and one halogenated monoterpene should be emphasized because they exhibit half maximal inhibitory concentration (IC50) values between 1–5 µM against several cell lines.
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