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Subali D, Kurniawan R, Surya R, Lee IS, Chung S, Ko SJ, Moon M, Choi J, Park MN, Taslim NA, Hardinsyah H, Nurkolis F, Kim B, Kim KI. Revealing the mechanism and efficacy of natural products on treating the asthma: Current insights from traditional medicine to modern drug discovery. Heliyon 2024; 10:e32008. [PMID: 38882318 PMCID: PMC11176852 DOI: 10.1016/j.heliyon.2024.e32008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 05/25/2024] [Accepted: 05/27/2024] [Indexed: 06/18/2024] Open
Abstract
Asthma remains a significant global health challenge, demanding innovative approaches to treatment. Traditional medicine has a rich history of using natural products to alleviate asthmatic symptoms. However, transitioning from these traditional remedies to modern drug discovery approaches has provided fresh insights into the mechanisms and effectiveness of these natural products. This study provides our comprehensive review, which examines the current state of knowledge in the treatment of asthma. It delves into the mechanisms through which natural products ameliorate asthma symptoms, and it discusses their potential in the development of novel therapeutic interventions. Our analysis reveals that natural products, traditionally employed for asthma relief, exhibit diverse mechanisms of action. These include anti-inflammatory, bronchodilatory, immunomodulatory effects, and reducing gene expression. In the context of modern drug discovery, these natural compounds serve as valuable candidates for the development of novel asthma therapies. The transition from traditional remedies to modern drug discovery represents a promising avenue for asthma treatment. Our review highlights the substantial efficacy of natural products in managing asthma symptoms, underpinned by well-defined mechanisms of action. By bridging the gap between traditional and contemporary approaches, we contribute to the growing body of knowledge in the field, emphasizing the potential of natural products in shaping the future of asthma therapy.
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Affiliation(s)
- Dionysius Subali
- Department of Biotechnology, Faculty of Biotechnology, Atma Jaya Catholic University of Indonesia, Jakarta, 12930, Indonesia
| | - Rudy Kurniawan
- Diabetes Connection Care, Eka Hospital Bumi Serpong Damai, Tangerang, 15321, Indonesia
| | - Reggie Surya
- Department of Food Technology, Faculty of Engineering, Bina Nusantara University, Jakarta, 11480, Indonesia
| | - In-Seon Lee
- College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Acupuncture & Meridian Science Research Center, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Sanghyun Chung
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Kyung Hee Myungbo Clinic of Korean Medicine, Hwaseong-si, 18466, Republic of Korea
| | - Seok-Jae Ko
- Department of Gastroenterology, College of Korean Medicine, Kyung Hee University, Seoul, 05253, Republic of Korea
| | - Myunghan Moon
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Jinwon Choi
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Nurpudji Astuti Taslim
- Division of Clinical Nutrition, Department of Nutrition, Faculty of Medicine, Hasanuddin University, Makassar, 90245, Indonesia
| | - Hardinsyah Hardinsyah
- Division of Applied Nutrition, Department of Community Nutrition, Faculty of Human Ecology, IPB University, Bogor, 16680, Indonesia
| | - Fahrul Nurkolis
- Department of Biological Sciences, Faculty of Sciences and Technology, State Islamic University of Sunan Kalijaga (UIN Sunan Kalijaga), Yogyakarta, 55281, Indonesia
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, 02447, Republic of Korea
| | - Kwan-Il Kim
- Division of Allergy, Immune and Respiratory System, Department of Internal Medicine, College of Korean Medicine, Kyung Hee University Medical Center, Kyung Hee University, Seoul, Republic of Korea
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Wu Y, Shen J, Wang L, Lin Y, Kojima S, Okada S, Umezawa K. Isolation of the Anti-Inflammatory Agent Myceliostatin from a Methionine-Enriched Culture of Myceliophthora thermophila ATCC 42464. JOURNAL OF NATURAL PRODUCTS 2023; 86:239-245. [PMID: 36735022 DOI: 10.1021/acs.jnatprod.2c00811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Safe and effective nonsteroidal anti-inflammatory drugs are needed. Meanwhile, addition of amino acids to cultures of microorganisms is likely to increase the possibility of novel secondary metabolite isolation. In the course of screening for anti-inflammatory agents using cellular lipopolysaccharide (LPS)-induced nitric oxide (NO) production, two new related compounds with the myceliothermophin structure from a methionine-enriched culture of Myceliophthora thermophila ATCC 42464 were isolated. The new compounds have an additional methylthio group on the myceliothermophin structure and were named myceliostatins A and B. Both compounds inhibited LPS-induced NO production at nontoxic concentrations in macrophage-like mouse monocytic leukemia RAW264.7 cells. Myceliostatin B inhibited the expression of LPS-induced iNOS, IL-6, and IL-1β and the upstream NF-κB activity in situ and in vitro. Finally, it was found to inhibit NF-κB binding to DNA in the reconstruction system with purified p65. Myceliostatin B also inhibited LPS-induced reactive oxygen species (ROS) production. Thus, myceliostatin B, a novel compound derived from M. thermophila, was found to be a new anti-inflammatory and antioxidant compound directly inhibiting NF-κB.
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Affiliation(s)
- Yanhua Wu
- Department of Molecular Target Medicine, Aichi Medical University School of Medicine, Nagakute 480-1195, Nagoya, Aichi, Japan
- Department of Pharmacology, Aichi Medical University School of Medicine, Nagakute 480-1195, Nagoya, Aichi, Japan
| | - Junfeng Shen
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Liyan Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Yinzhi Lin
- Department of Molecular Target Medicine, Aichi Medical University School of Medicine, Nagakute 480-1195, Nagoya, Aichi, Japan
| | - Shiori Kojima
- Department of Molecular Target Medicine, Aichi Medical University School of Medicine, Nagakute 480-1195, Nagoya, Aichi, Japan
| | - Shoshiro Okada
- Department of Pharmacology, Aichi Medical University School of Medicine, Nagakute 480-1195, Nagoya, Aichi, Japan
| | - Kazuo Umezawa
- Department of Molecular Target Medicine, Aichi Medical University School of Medicine, Nagakute 480-1195, Nagoya, Aichi, Japan
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Li H, Liu X, Hu Z, Wang L. Novel Sesquiterpene and Diterpene Aminoglycosides from the Deep-Sea-Sediment Fungus Trichoderma sp. SCSIOW21. Mar Drugs 2022; 21:md21010007. [PMID: 36662180 PMCID: PMC9863909 DOI: 10.3390/md21010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/13/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
Six new sesquiterpene aminoglycosides, trichaspside F (2) and cyclonerosides A-E (5-9), two new diterpene aminoglycosides, harzianosides A and B (10, 11), and three known sesquiterpenes, trichodermoside (1), cycloneran-3,7,10,11-tetraol (3), and cyclonerodiol (4), have been isolated from the n-butanol extract of Trichoderma sp. SCSIOW21 (Hypocreaceae), a deep-sea-sediment-derived fungus. The structures and relative configurations of the new compounds were determined using spectroscopic techniques and comparisons with those reported in the literature. The absolute configurations of the aglycone part of cyclonerosides A-E (5-9) were tentatively proposed based on optical rotation and biogenic considerations. Cyclonerosides A-E (5-9) represent the first glycosides of cyclonelane-type sesquiterpenes generated from Trichoderma. The NO-production-inhibitory activities were evaluated using macrophage RAW264.7 cells. Among the isolated compounds, trichaspside F (2) and cyclonerosides B-E (6-9) exhibited the strongest NO-production-inhibitory activities with IC50 values of 54.8, 50.7, 57.1, 42.0, and 48.0 µM, respectively, compared to the IC50 value of 30.8 µM for the positive control (quercetin). When tested for anti-fungal activities against several pathogenic fungi, none of the compounds exhibited significant activities at a concentration of 100 µM.
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Affiliation(s)
- Hongxu Li
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xinyi Liu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
| | - Zhangli Hu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
- Key Laboratory of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Liyan Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China
- Correspondence: ; Tel.: +86-755-2601-2653
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The Tetrahydrofuran Motif in Marine Lipids and Terpenes. Mar Drugs 2022; 20:md20100642. [PMID: 36286465 PMCID: PMC9605582 DOI: 10.3390/md20100642] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/09/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
Heterocycles are particularly common moieties within marine natural products. Specifically, tetrahydrofuranyl rings are present in a variety of compounds which present complex structures and interesting biological activities. Focusing on terpenoids, a high number of tetrahydrofuran-containing metabolites have been isolated during the last decades. They show promising biological activities, making them potential leads for novel antibiotics, antikinetoplastid drugs, amoebicidal substances, or anticancer drugs. Thus, they have attracted the attention of the synthetics community and numerous approaches to their total syntheses have appeared. Here, we offer the reader an overview of marine-derived terpenoids and related compounds, their isolation, structure determination, and a special focus on their total syntheses and biological profiles.
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Abstract
Covering: 2020This review covers the literature published in 2020 for marine natural products (MNPs), with 757 citations (747 for the period January to December 2020) referring to compounds isolated from marine microorganisms and phytoplankton, green, brown and red algae, sponges, cnidarians, bryozoans, molluscs, tunicates, echinoderms, mangroves and other intertidal plants and microorganisms. The emphasis is on new compounds (1407 in 420 papers for 2020), together with the relevant biological activities, source organisms and country of origin. Pertinent reviews, biosynthetic studies, first syntheses, and syntheses that led to the revision of structures or stereochemistries, have been included. A meta analysis of bioactivity data relating to new MNPs reported over the last five years is also presented.
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Affiliation(s)
- Anthony R Carroll
- School of Environment and Science, Griffith University, Gold Coast, Australia. .,Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia
| | - Brent R Copp
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
| | - Rohan A Davis
- Griffith Institute for Drug Discovery, Griffith University, Brisbane, Australia.,School of Enivironment and Science, Griffith University, Brisbane, Australia
| | - Robert A Keyzers
- Centre for Biodiscovery, School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington, New Zealand
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Recent Progress in Antioxidant Active Substances from Marine Biota. Antioxidants (Basel) 2022; 11:antiox11030439. [PMID: 35326090 PMCID: PMC8944465 DOI: 10.3390/antiox11030439] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/21/2022] [Accepted: 02/21/2022] [Indexed: 02/01/2023] Open
Abstract
Background: The well-recognized but not fully explored antioxidant activity of marine-biota-derived, biologically active substances has led to interest in their study as substitutes of antibiotics, antiaging agents, anticancer and antiviral drugs, and others. The aim of this review is to present the current state of the art of marine-biota-derived antioxidants to give some ideas for potential industrial applications. Methods: This review is an update for the last 5 years on the marine sources of natural antioxidants, different classes antioxidant compounds, and current derivation biotechnologies. Results: New marine sources of antioxidants, including byproducts and wastes, are presented, along with new antioxidant substances and derivation approaches. Conclusions: The interest in high-value antioxidants from marine biota continues. Natural substances combining antioxidant and antimicrobial action are of particular interest because of the increasing microbial resistance to antibiotic treatments. New antioxidant substances are discovered, along with those extracted from marine biota collected in other locations. Byproducts and wastes provide a valuable source of antioxidant substances. The application of optimized non-conventional derivation approaches is expected to allow the intensification of the production and improvement in the quality of the derived substances. The ability to obtain safe, high-value products is of key importance for potential industrialization.
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Li H, Liu X, Li X, Hu Z, Wang L. Novel Harziane Diterpenes from Deep-Sea Sediment Fungus Trichoderma sp. SCSIOW21 and Their Potential Anti-Inflammatory Effects. Mar Drugs 2021; 19:md19120689. [PMID: 34940688 PMCID: PMC8705903 DOI: 10.3390/md19120689] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 11/24/2021] [Accepted: 11/25/2021] [Indexed: 11/27/2022] Open
Abstract
Five undescribed harziane-type diterpene derivatives, namely harzianol K (1), harzianol L (4), harzianol M (5), harzianol N (6), harzianol O (7), along with two known compounds, hazianol J (2) and harzianol A (3) were isolated from the deep-sea sediment-derived fungus Trichoderma sp. SCSIOW21. The relative configurations were determined by meticulous spectroscopic methods including 1D, 2D NMR spectroscopy, and HR-ESI-MS. The absolute configurations were established by the ECD curve calculations and the X-ray crystallographic analysis. These compounds (1, and 4–7) contributed to increasing the diversity of the caged harziane type diterpenes with highly congested skeleton characteristics. Harzianol J (2) exhibited a weak anti-inflammatory effect with 81.8% NO inhibition at 100 µM.
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Affiliation(s)
- Hongxu Li
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (H.L.); (X.L.); (Z.H.)
- Key Laboratory of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Xinyi Liu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (H.L.); (X.L.); (Z.H.)
| | - Xiaofan Li
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (H.L.); (X.L.); (Z.H.)
- Correspondence: (X.L.); (L.W.); Tel.: +86-755-2601-2653 (L.W.)
| | - Zhangli Hu
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (H.L.); (X.L.); (Z.H.)
- Key Laboratory of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China
| | - Liyan Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (H.L.); (X.L.); (Z.H.)
- Correspondence: (X.L.); (L.W.); Tel.: +86-755-2601-2653 (L.W.)
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Saide A, Lauritano C, Ianora A. A Treasure of Bioactive Compounds from the Deep Sea. Biomedicines 2021; 9:biomedicines9111556. [PMID: 34829785 PMCID: PMC8614969 DOI: 10.3390/biomedicines9111556] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/12/2021] [Accepted: 10/21/2021] [Indexed: 11/16/2022] Open
Abstract
The deep-sea environment is a unique, challenging extreme habitat where species have had to adapt to the absence of light, low levels of oxygen, high pressure and little food. In order to survive such harsh conditions, these organisms have evolved different biochemical and physiological features that often have no other equivalent in terrestrial habitats. Recent analyses have highlighted how the deep sea is one of the most diverse and species-rich habitats on the planet but less explored compared to more accessible sites. Because of their adaptation to this extreme environment, deep-sea species have the potential to produce novel secondary metabolites with potent biological activities. Recent advances in sampling and novel techniques in microorganism culturing and chemical isolation have promoted the discovery of bioactive agents from deep-sea organisms. However, reports of natural products derived from deep-sea species are still scarce, probably because of the difficulty in accessing deep-sea samples, sampling costs and the difficulty in culturing deep-sea organisms. In this review, we give an overview of the potential treasure represented by metabolites produced by deep marine species and their bioactivities for the treatment and prevention of various human pathologies.
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Ghiciuc CM, Vicovan AG, Stafie CS, Antoniu SA, Postolache P. Marine-Derived Compounds for the Potential Treatment of Glucocorticoid Resistance in Severe Asthma. Mar Drugs 2021; 19:md19110586. [PMID: 34822457 PMCID: PMC8620935 DOI: 10.3390/md19110586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/14/2021] [Accepted: 10/15/2021] [Indexed: 02/07/2023] Open
Abstract
One of the challenges to the management of severe asthma is the poor therapeutic response to treatment with glucocorticosteroids. Compounds derived from marine sources have received increasing interest in recent years due to their prominent biologically active properties for biomedical applications, as well as their sustainability and safety for drug development. Based on the pathobiological features associated with glucocorticoid resistance in severe asthma, many studies have already described many glucocorticoid resistance mechanisms as potential therapeutic targets. On the other hand, in the last decade, many studies described the potentially anti-inflammatory effects of marine-derived biologically active compounds. Analyzing the underlying anti-inflammatory mechanisms of action for these marine-derived biologically active compounds, we observed some of the targeted pathogenic molecular mechanisms similar to those described in glucocorticoid (GC) resistant asthma. This article gathers the marine-derived compounds targeting pathogenic molecular mechanism involved in GC resistant asthma and provides a basis for the development of effective marine-derived drugs.
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Affiliation(s)
- Cristina Mihaela Ghiciuc
- Department of Morpho-Functional Sciences II—Pharmacology and Clinical Pharmacology, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, 16 Universitatii Street, 700115 Iasi, Romania
- Correspondence: (C.M.G.); (A.G.V.)
| | - Andrei Gheorghe Vicovan
- Department of Morpho-Functional Sciences II—Pharmacology and Clinical Pharmacology, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, 16 Universitatii Street, 700115 Iasi, Romania
- Correspondence: (C.M.G.); (A.G.V.)
| | - Celina Silvia Stafie
- Department of Preventive Medicine and Interdisciplinarity—Family Medicine Discipline, Faculty of Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
| | - Sabina Antonela Antoniu
- Department of Medicine II—Palliative Care Nursing, Grigore T. Popa University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
| | - Paraschiva Postolache
- Department of Medicine I—Pulmonary Rehabilitation Clinic, Grigore T. Popa University of Medicine and Pharmacy of Iasi, 16 Universitatii Street, 700115 Iasi, Romania;
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Wang L, Umezawa K. Cellular Signal Transductions and Their Inhibitors Derived from Deep-Sea Organisms. Mar Drugs 2021; 19:md19040205. [PMID: 33916424 PMCID: PMC8065634 DOI: 10.3390/md19040205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 03/30/2021] [Accepted: 04/02/2021] [Indexed: 12/11/2022] Open
Abstract
Not only physiological phenomena but also pathological phenomena can now be explained by the change of signal transduction in the cells of specific tissues. Commonly used cellular signal transductions are limited. They consist of the protein-tyrosine kinase dependent or independent Ras-ERK pathway, and the PI3K-Akt, JAK-STAT, SMAD, and NF-κB-activation pathways. In addition, biodegradation systems, such as the ubiquitin-proteasome pathway and autophagy, are also important for physiological and pathological conditions. If we can control signaling for each by a low-molecular-weight agent, it would be possible to treat diseases in new ways. At present, such cell signaling inhibitors are mainly looked for in plants, soil microorganisms, and the chemical library. The screening of bioactive metabolites from deep-sea organisms should be valuable because of the high incidence of finding novel compounds. Although it is still an emerging field, there are many successful examples, with new cell signaling inhibitors. In this review, we would like to explain the current view of the cell signaling systems important in diseases, and show the inhibitors found from deep-sea organisms, with their structures and biological activities. These inhibitors are possible candidates for anti-inflammatory agents, modulators of metabolic syndromes, antimicrobial agents, and anticancer agents.
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Affiliation(s)
- Liyan Wang
- Shenzhen Key Laboratory of Marine Bioresource and Eco-Environmental Science, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China;
| | - Kazuo Umezawa
- Molecular Target Medicine, School of Medicine, Aichi Medical University, Nagakute 480-1195, Japan
- Correspondence: ; Tel.: +81-561-611-959
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