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Sekiguchi M, Shinoda S, Kurimoto SI, Kubota T. Macrocarquinoid D, New Meroterpenoid from Brown Alga, Sargassum macrocarpum. HETEROCYCLES 2022. [DOI: 10.3987/com-22-14651] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Niwa H, Kurimoto SI, Kubota T, Sekiguchi M. Macrocarquinoids A-C, new meroterpenoids from Sargassum macrocarpum. J Nat Med 2021; 75:194-200. [PMID: 32974814 DOI: 10.1007/s11418-020-01449-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 09/13/2020] [Indexed: 01/11/2023]
Abstract
The production and accumulation of advanced glycation end products (AGEs) have been implicated in diabetes and diabetic complication. This study was conducted as a search for an AGE inhibitor from brown alga, Sargassum macrocarpum. Separation and purification were performed using AGEs inhibitory activity as an index, yielding isolation of 11 meroterpenoids, of which 3 were new compounds: macrocarquinoids A (1), B (6), and C (9). Their structures were elucidated using NMR spectral analysis with 2D techniques. All tested compounds showed AGEs inhibitory activity. Particularly, macrocarquinoid C (9) possessed the strongest activity (IC50: 1.0 mM) of isolated compounds. This activity was stronger than that of aminoguanidine (positive control).
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Affiliation(s)
- Hiromi Niwa
- Faculty of Bioresources and Environmental Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, 921-8836, Japan
| | | | - Takaaki Kubota
- Showa Pharmaceutical University, Machida, Tokyo, 194-8543, Japan
| | - Mitsuhiro Sekiguchi
- Faculty of Bioresources and Environmental Science, Ishikawa Prefectural University, Nonoichi, Ishikawa, 921-8836, Japan.
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Hannan MA, Dash R, Haque MN, Mohibbullah M, Sohag AAM, Rahman MA, Uddin MJ, Alam M, Moon IS. Neuroprotective Potentials of Marine Algae and Their Bioactive Metabolites: Pharmacological Insights and Therapeutic Advances. Mar Drugs 2020; 18:E347. [PMID: 32630301 PMCID: PMC7401253 DOI: 10.3390/md18070347] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 06/19/2020] [Accepted: 06/25/2020] [Indexed: 12/14/2022] Open
Abstract
Beyond their significant contribution to the dietary and industrial supplies, marine algae are considered to be a potential source of some unique metabolites with diverse health benefits. The pharmacological properties, such as antioxidant, anti-inflammatory, cholesterol homeostasis, protein clearance and anti-amyloidogenic potentials of algal metabolites endorse their protective efficacy against oxidative stress, neuroinflammation, mitochondrial dysfunction, and impaired proteostasis which are known to be implicated in the pathophysiology of neurodegenerative disorders and the associated complications after cerebral ischemia and brain injuries. As was evident in various preclinical studies, algal compounds conferred neuroprotection against a wide range of neurotoxic stressors, such as oxygen/glucose deprivation, hydrogen peroxide, glutamate, amyloid β, or 1-methyl-4-phenylpyridinium (MPP+) and, therefore, hold therapeutic promise for brain disorders. While a significant number of algal compounds with promising neuroprotective capacity have been identified over the last decades, a few of them have had access to clinical trials. However, the recent approval of an algal oligosaccharide, sodium oligomannate, for the treatment of Alzheimer's disease enlightened the future of marine algae-based drug discovery. In this review, we briefly outline the pathophysiology of neurodegenerative diseases and brain injuries for identifying the targets of pharmacological intervention, and then review the literature on the neuroprotective potentials of algal compounds along with the underlying pharmacological mechanism, and present an appraisal on the recent therapeutic advances. We also propose a rational strategy to facilitate algal metabolites-based drug development.
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Affiliation(s)
- Md. Abdul Hannan
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh;
| | - Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
| | - Md. Nazmul Haque
- Department of Fisheries Biology and Genetics, Patuakhali Science and Technology University, Patuakhali 8602, Bangladesh;
| | - Md. Mohibbullah
- Department of Fishing and Post Harvest Technology, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka 1207, Bangladesh;
| | - Abdullah Al Mamun Sohag
- Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh;
| | - Md. Ataur Rahman
- Center for Neuroscience, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea;
| | - Md Jamal Uddin
- Graduate School of Pharmaceutical Sciences, College of Pharmacy, Ewha Womans University, Seoul 03760, Korea;
- ABEx Bio-Research Center, East Azampur, Dhaka 1230, Bangladesh
| | - Mahboob Alam
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
- Division of Chemistry and Biotechnology, Dongguk University, Gyeongju 780-714, Korea
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju 38066, Korea; (M.A.H.); (R.D.); (M.A.)
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Alghazwi M, Smid S, Musgrave I, Zhang W. In vitro studies of the neuroprotective activities of astaxanthin and fucoxanthin against amyloid beta (Aβ 1-42) toxicity and aggregation. Neurochem Int 2019; 124:215-224. [PMID: 30639263 DOI: 10.1016/j.neuint.2019.01.010] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 12/31/2018] [Accepted: 01/08/2019] [Indexed: 12/19/2022]
Abstract
Amyloid beta (Aβ) can aggregate and form plaques, which are considered as one of the major hallmarks of Alzheimer's disease. This study aims to directly compare the neuroprotective activities in vitro of two marine-derived carotenoids astaxanthin and fucoxanthin that have shown a spectrum of biological activities, including neuroprotection. The in vitro neuroprotective activities were investigated against Aβ1-42-mediated toxicity in pheochromocytoma (PC-12) neuronal cells using the MTT cell viability assay, anti-apoptotic, antioxidant and neurite outgrowth activities; as well as inhibition against Aβ1-42 fibrillization in the Thioflavin T (ThT) assay of fibril kinetics and via transmission electron microscopic (TEM) evaluation of fibril morphology. The results demonstrated that both astaxanthin and fucoxanthin exhibited multi-neuroprotective effects favouring fucoxanthin over astaxanthin supporting neuroprotective roles of marine-derived carotenoids as potential novel dementia prevention or therapeutic strategies.
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Affiliation(s)
- Mousa Alghazwi
- Centre for Marine Bioproducts Development (CMBD), College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, South Australia, Australia; Medical Biotechnology, College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, South Australia, Australia; Ministry of Higher Education in Saudi Arabia, King Faisal Hospital Street, Riyadh, 11153, Saudi Arabia.
| | - Scott Smid
- Discipline of Pharmacology, School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
| | - Ian Musgrave
- Discipline of Pharmacology, School of Medicine, Faculty of Health Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
| | - Wei Zhang
- Centre for Marine Bioproducts Development (CMBD), College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, South Australia, Australia; Medical Biotechnology, College of Medicine and Public Health, Flinders University, GPO Box 2100, Adelaide, 5001, South Australia, Australia.
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Kurt O, Özdal-Kurt F, Akçora CM, Özkut M, Tuğlu MI. Neurotoxic, cytotoxic, apoptotic and antiproliferative effects of some marine algae extracts on the NA2B cell line. Biotech Histochem 2018; 93:59-69. [PMID: 29388476 DOI: 10.1080/10520295.2017.1381992] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Oxidative stress contributes to cancer pathologies and to apoptosis. Marine algae exhibit cytotoxic, antiproliferative and apoptotic effects; their metabolites have been used to treat many types of cancer. We investigated in culture extracts of Petalonia fascia, Jania longifurca and Halimeda tuna to determine their effects on mouse neuroblastoma cell line, NA2B. NA2B cells were treated with algae extracts, and the survival and proliferation of NA2B cells were assessed using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The effects of algae extracts on oxidative stress in NA2B cells also were investigated using nitric oxide synthase (NOS) immunocytochemistry and apoptosis was assessed using terminal deoxynucleotidyl transferase dUTP nick end labeling. We observed significant neurite inhibition with moderate damage by the neurotoxicity-screening test (NST) at IC50 dilutions of the extracts. MTT demonstrated that J. longifurca extracts were more toxic than P. fascia and H. tuna extracts. We found an increase of endothelial and inducible NOS immunostaining for oxidative stress and TUNEL analysis revealed increased apoptosis after application of extract. Our findings suggest that the algae we tested may have potential use for treatment of cancer.
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Affiliation(s)
- O Kurt
- a Faculty of Sciences and Literature, Department of Biology , Manisa Celal Bayar University , Yunusemre/Manisa , Turkey
| | - F Özdal-Kurt
- a Faculty of Sciences and Literature, Department of Biology , Manisa Celal Bayar University , Yunusemre/Manisa , Turkey
- b Department of Molecular, Cell and Systems Biology, Stem Cell Center , College of Natural and Agricultural Sciences, University of California Riverside , Riverside , CA
| | - C M Akçora
- a Faculty of Sciences and Literature, Department of Biology , Manisa Celal Bayar University , Yunusemre/Manisa , Turkey
| | - M Özkut
- c Department of Histology and Embryology, Faculty of Medicine , Manisa Celal Bayar University , Yunusemre/Manisa , Turkey
| | - M I Tuğlu
- c Department of Histology and Embryology, Faculty of Medicine , Manisa Celal Bayar University , Yunusemre/Manisa , Turkey
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The Edible Red Seaweed Gracilariopsis chorda Promotes Axodendritic Architectural Complexity in Hippocampal Neurons. J Med Food 2016; 19:638-44. [DOI: 10.1089/jmf.2016.3694] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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Rafiquzzaman S, Kim EY, Lee JM, Mohibbullah M, Alam MB, Soo Moon I, Kim JM, Kong IS. Anti-Alzheimers and anti-inflammatory activities of a glycoprotein purified from the edible brown alga Undaria pinnatifida. Food Res Int 2015. [DOI: 10.1016/j.foodres.2015.08.021] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Liu L, Heinrich M, Myers S, Dworjanyn SA. Towards a better understanding of medicinal uses of the brown seaweed Sargassum in Traditional Chinese Medicine: a phytochemical and pharmacological review. JOURNAL OF ETHNOPHARMACOLOGY 2012; 142:591-619. [PMID: 22683660 DOI: 10.1016/j.jep.2012.05.046] [Citation(s) in RCA: 196] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 04/18/2012] [Accepted: 05/25/2012] [Indexed: 05/20/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE For nearly 2000 years Sargassum spp., a brown seaweed, has been used in Traditional Chinese Medicine (TCM) to treat a variety of diseases including thyroid disease (e.g. goitre). AIMS OF THE REVIEW To assess the scientific evidence for therapeutic claims made for Sargassum spp. in TCM and to identify future research needs. BACKGROUND AND METHODS A systematic search for the use of Sargassum in classical TCM books was conducted and linked to a search for modern phytochemical and pharmacological data on Sargassum spp. retrieved from PubMed, Web of Knowledge, SciFinder Scholar and CNKI (in Chinese). RESULTS AND DISCUSSION The therapeutic effects of Sargassum spp. are scientifically plausible and may be explained partially by key in vivo and in vitro pharmacological activities of Sargassum, such as anticancer, anti-inflammatory, antibacterial and antiviral activities. Although the mechanism of actions is still not clear, the pharmacological activities could be mainly attributed to the major biologically active metabolites, meroterpenoids, phlorotanins and fucoidans. The contribution of iodine in Sargassum for treating thyroid related diseases seem to have been over estimated. CONCLUSIONS The bioactive compounds in Sargassum spp. appear to play a role as immunomodulators and could be useful in the treatment of thyroid related diseases such as Hashimoto's thyroiditis. Further research is required to determine both the preventative and therapeutic role of Sargassum spp. in thyroid health.
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Affiliation(s)
- Lei Liu
- Southern Cross Plant Science, Southern Cross University, PO Box 157, Lismore, NSW 2480, Australia.
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Hannan MA, Kang JY, Hong YK, Lee H, Choi JS, Choi IS, Moon IS. The Marine AlgaGelidium amansiiPromotes the Development and Complexity of Neuronal Cytoarchitecture. Phytother Res 2012; 27:21-9. [DOI: 10.1002/ptr.4684] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2011] [Revised: 02/29/2012] [Accepted: 03/02/2012] [Indexed: 01/19/2023]
Affiliation(s)
- Md. Abdul Hannan
- Department of Biotechnology; Pukyong National University; Namku; Busan; 608-737; Korea
| | - Ji-Young Kang
- Department of Biotechnology; Pukyong National University; Namku; Busan; 608-737; Korea
| | - Yong-Ki Hong
- Department of Biotechnology; Pukyong National University; Namku; Busan; 608-737; Korea
| | - HyunSook Lee
- Department of Anatomy, College of Medicine; Dongguk University; Gyeongju; 780-714; Korea
| | - Jae-Suk Choi
- RIS Center, IACF; Silla University; Sasang-gu; Busan; 617-736; Korea
| | | | - Il Soo Moon
- Department of Anatomy, College of Medicine; Dongguk University; Gyeongju; 780-714; Korea
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Pangestuti R, Kim SK. Neuroprotective effects of marine algae. Mar Drugs 2011; 9:803-818. [PMID: 21673890 PMCID: PMC3111183 DOI: 10.3390/md9050803] [Citation(s) in RCA: 121] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 04/12/2011] [Accepted: 04/28/2011] [Indexed: 12/11/2022] Open
Abstract
The marine environment is known as a rich source of chemical structures with numerous beneficial health effects. Among marine organisms, marine algae have been identified as an under-exploited plant resource, although they have long been recognized as valuable sources of structurally diverse bioactive compounds. Presently, several lines of studies have provided insight into biological activities and neuroprotective effects of marine algae including antioxidant, anti-neuroinflammatory, cholinesterase inhibitory activity and the inhibition of neuronal death. Hence, marine algae have great potential to be used for neuroprotection as part of pharmaceuticals, nutraceuticals and functional foods. This contribution presents an overview of marine algal neuroprotective effects and their potential application in neuroprotection.
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Affiliation(s)
- Ratih Pangestuti
- Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University, Busan 608–737, Korea; E-Mail:
| | - Se-Kwon Kim
- Marine Biochemistry Laboratory, Department of Chemistry, Pukyong National University, Busan 608–737, Korea; E-Mail:
- Marine Bioprocess Research Center, Pukyong National University, Busan 608–737, Korea
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Kamei Y, Aoki M. A chlorophyll c2 analogue from the marine brown alga Eisenia bicyclis inactivates the infectious hematopoietic necrosis virus, a fish rhabdovirus. Arch Virol 2007; 152:861-9. [PMID: 17277903 DOI: 10.1007/s00705-006-0920-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2006] [Accepted: 12/11/2006] [Indexed: 11/28/2022]
Abstract
We screened in vitro antiviral activity against a salmonid pathogenic virus, infectious hematopoietic necrosis virus (IHNV), from the extracts of a total of 342 species of marine algae collected from the Japanese coastline. The anti-IHNV activity was found primarily in MeOH extracts, and the extract from one marine brown alga in particular, Eisenia bicyclis, showed high anti-IHNV activity. The anti-IHNV compound was isolated and purified as MC15 from the E. bicyclis extract, and the chemical structure was determined by several spectrometric analyses. The antiviral compound was proved to be a chlorophyll c2 derivative lacking the metal ion Mg(2+). MC15 showed similar antiviral activity against other salmonid enveloped viruses such as Paralichthys olivaceus virus and Oncorhynchus masou virus, and stability against any pH and temperatures up to 100 degrees C. No cytotoxicity was observed at up to 5 microg/ml. The antiviral mechanism of MC15 appears to be direct inactivation of the viral particles. A time course study showed that the inactivation of IHNV was completed within 40 min when 200 PFU of IHNV was reacted with MC15 at 800 ng/ml.
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Affiliation(s)
- Y Kamei
- Coastal Bioenvironment Center, Saga University, Saga, Japan.
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Tsang CK, Ina A, Goto T, Kamei Y. Sargachromenol, a novel nerve growth factor-potentiating substance isolated from Sargassum macrocarpum, promotes neurite outgrowth and survival via distinct signaling pathways in PC12D cells. Neuroscience 2005; 132:633-43. [PMID: 15837125 DOI: 10.1016/j.neuroscience.2005.01.028] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2005] [Indexed: 10/25/2022]
Abstract
We previously found that the methanol extract of a marine brown alga, Sargassum macrocarpum showed marked nerve growth factor (NGF)-dependent neurite outgrowth promoting activity to PC12D cells. The active substance purified was elucidated to be sargachromenol. The median effective dose (ED50) was 9 microM against PC12D cells in the presence of 10 ng/ml NGF, although it showed no neurotrophic effect on its own. Pretreatment of cells with protein kinase A (PKA) inhibitor or U0126 substantially suppressed the sargachromenol-enhanced neurite outgrowth from PC12D cells, suggesting that the activation of cyclic AMP-mediated protein kinase and mitogen-activated protein (MAP) kinase 1/2 was apparently required for the action of sargachromenol. On the other hand, sargachromenol significantly promoted the survival of neuronal PC12D cells at 0-50 ng/ml NGF in serum-free medium. Neither PKA inhibitor nor U0126 could inhibit the survival supporting effect of sargachromenol, whereas wortmannin significantly blocked the sargachromenol-induced survival supporting effect on neuronal PC12D cells, suggesting that sargachromenol rescued neuronal PC12D cells by activating phosphatidylinositol-3 kinase. These results demonstrate that sargachromenol promotes neuronal differentiation of PC12D cells and supports the survival of neuronal PC12D cells via two distinct signaling pathways.
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Affiliation(s)
- C K Tsang
- Coastal Bioenvironment Center, Saga University, Karatsu, Saga 847-0021, Japan
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Tsang CK, Kamei Y. Sargaquinoic acid supports the survival of neuronal PC12D cells in a nerve growth factor-independent manner. Eur J Pharmacol 2004; 488:11-8. [PMID: 15044030 DOI: 10.1016/j.ejphar.2004.01.033] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2003] [Revised: 01/06/2004] [Accepted: 01/28/2004] [Indexed: 10/26/2022]
Abstract
Sargaquinoic acid (designated previously as MC14) was isolated from a marine brown alga Sargassum macrocarpum, and has been found to possess a novel nerve growth factor (NGF)-dependent neurite outgrowth promoting activity in PC12D cells. In this study, we explored the neuroprotective effects of MC14 in terms of its survival supporting, antioxidant and neurite-regenerating activities under NGF deficient or deprived conditions. Intriguingly, MC14 did not only promote the NGF-induced survival support on neuronal PC12D cells, but also significantly abated neuronal PC12D cell death even in the absence of NGF. The pharmacological inhibition of phosphatidylinositol-3 kinase (PI3K) by wortmannin significantly suppressed the survival supporting activity of MC14, whereas the NGF receptor (tyrosine kinase A or TrkA) inhibitor K252a showed no detectable effect on MC14 activity. These results demonstrate that MC14 supports survival of neuronal PC12D cells in an NGF-independent manner, and that PI3K may be required for the neuroprotective activity of MC14. In addition, we have shown that MC14 markedly enhanced neurite-regeneration and protected PC12D cells from hydrogen peroxide (H(2)O(2))-induced oxidative stress. These pharmacological features suggest that MC14 may be a potentially important neuroprotective agent.
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Affiliation(s)
- Chi Kwan Tsang
- Coastal Bioenvironment Center, 152-1 Shonan-cho, Karatsu, Saga 847-0021, Japan
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