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Fu JT, Yang CJ, Lee LY, Chen WP, Chen YW, Chen CC, Sun YT, Yang CS, Tzeng SF. Erinacine S, a small active component derived from Hericium erinaceus, protects oligodendrocytes and alleviates mood abnormalities in cuprizone-exposed rodents. Biomed Pharmacother 2024; 173:116297. [PMID: 38394854 DOI: 10.1016/j.biopha.2024.116297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2023] [Revised: 02/08/2024] [Accepted: 02/17/2024] [Indexed: 02/25/2024] Open
Abstract
Hericium erinaceus mycelium extract (HEM), containing erinacine A (HeA) and erinacine S (HeS), has shown promise in promoting the differentiation of oligodendrocyte precursor cells (OPCs) into mature oligodendrocytes (OLs), crucial for myelin production in the central nervous system (CNS). The main aim of this study was to characterize the protective effects of HEM and its components on OLs and myelin in demyelinating rodents by exposure to cuprizone (CPZ), a copper chelating agent commonly used to induce demyelination in the corpus callosum of the brain. Rats were fed by CPZ-containing diet and simultaneously orally administered HEM, HeA, or HeS on a daily basis for three weeks. We found that HEM and HeS preserved myelin and OLs in the corpus callosum of CPZ-fed rats, along with reduced microglia and astrocyte activation, and downregulated IL-1β expression. Furthermore, post-treatment with HeS, in mouse models with acute (6 weeks) or chronic (12 weeks) CPZ-induced demyelination demonstrated oral administration during the final 4 weeks (HeS4/6 or HeS4/12) effectively preserved myelin in the corpus callosum. Additionally, HeS4/6 and HeS4/12 inhibited anxious and depressive-like behaviors in CPZ-fed mice. In summary, simultaneous administration of HEM and HeS in rats during short-term CPZ intoxication preserved OLs and myelin. Furthermore, post-administration of HeS not only inhibited demyelination and gliosis but also alleviated anxiety and depression in both acute and chronic CPZ-fed mice. This study presents compelling evidence supporting the potential of HeS as a promising small active compound for protecting OLs and preserving myelin in demyelinating diseases associated with emotional disorders.
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Affiliation(s)
- Jing-Ting Fu
- Department of Life Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Chih-Jou Yang
- Department of Life Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan
| | - Li-Ya Lee
- Biotech Research Institute, Grape King Biotechnology Inc, Taoyuan, Taiwan
| | - Wan-Ping Chen
- Biotech Research Institute, Grape King Biotechnology Inc, Taoyuan, Taiwan
| | - Yu-Wen Chen
- Biotech Research Institute, Grape King Biotechnology Inc, Taoyuan, Taiwan
| | - Chin-Chu Chen
- Biotech Research Institute, Grape King Biotechnology Inc, Taoyuan, Taiwan
| | - Yuan-Ting Sun
- Department of Neurology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Shi Yang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Zhunan Town, Miaoli County, Taiwan
| | - Shun-Fen Tzeng
- Department of Life Sciences, College of Bioscience and Biotechnology, National Cheng Kung University, Tainan, Taiwan.
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Rascher M, Wittstein K, Winter B, Rupcic Z, Wolf-Asseburg A, Stadler M, Köster RW. Erinacine C Activates Transcription from a Consensus ETS DNA Binding Site in Astrocytic Cells in Addition to NGF Induction. Biomolecules 2020; 10:biom10101440. [PMID: 33066380 PMCID: PMC7602259 DOI: 10.3390/biom10101440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/08/2020] [Accepted: 10/13/2020] [Indexed: 11/16/2022] Open
Abstract
Medicinal mushrooms of the genus Hericium are known to produce secondary metabolites with homeostatic properties for the central nervous system. We and others have recently demonstrated that among these metabolites cyathane diterpenoids and in particular erinacine C possess potent neurotrophin inducing properties in astrocytic cells. Yet, the signaling events downstream of erinacine C induced neurotrophin acitivity in neural-like adrenal phaeochromocytoma cells (PC12) cells have remained elusive. Similar, signaling events activated by erinacine C in astrocytic cells are unknown. Using a combination of genetic and pharmacological inhibitors we show that erinacine C induced neurotrophic activity mediates PC12 cell differentiation via the TrkA receptor and likely its associated PLCγ-, PI3K-, and MAPK/ERK pathways. Furthermore, a small library of transcriptional activation reporters revealed that erinacine C induces transcriptional activation mediated by DNA consensus binding sites of selected conserved transcription factor families. Among these, transcription is activated from an ETS consensus in a concentration dependent manner. Interestingly, induced ETS-consensus transcription occurs in parallel and independent of neurotrophin induction. This finding helps to explain the many pleiotropic functions of cyathane diterpenoids. Moreover, our studies provide genetic access to cyathane diterpenoid functions in astrocytic cells and help to mechanistically understand the action of cyathanes in glial cells.
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Affiliation(s)
- Monique Rascher
- Division of Cellular and Molecular Biology, Zoological Institute, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Braunschweig, Germany; (M.R.); (B.W.); (A.W.-A.)
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH and Institute of Microbiology, Technische Universität Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany; (K.W.); (Z.R.)
- German Centre for Infection Research (DZIF), Technische Universität Braunschweig, Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - Kathrin Wittstein
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH and Institute of Microbiology, Technische Universität Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany; (K.W.); (Z.R.)
- German Centre for Infection Research (DZIF), Technische Universität Braunschweig, Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - Barbara Winter
- Division of Cellular and Molecular Biology, Zoological Institute, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Braunschweig, Germany; (M.R.); (B.W.); (A.W.-A.)
| | - Zeljka Rupcic
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH and Institute of Microbiology, Technische Universität Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany; (K.W.); (Z.R.)
- German Centre for Infection Research (DZIF), Technische Universität Braunschweig, Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
| | - Alexandra Wolf-Asseburg
- Division of Cellular and Molecular Biology, Zoological Institute, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Braunschweig, Germany; (M.R.); (B.W.); (A.W.-A.)
| | - Marc Stadler
- Department Microbial Drugs, Helmholtz Centre for Infection Research GmbH and Institute of Microbiology, Technische Universität Braunschweig, Inhoffenstraße 7, 38124 Braunschweig, Germany; (K.W.); (Z.R.)
- German Centre for Infection Research (DZIF), Technische Universität Braunschweig, Partner Site Hannover-Braunschweig, 38124 Braunschweig, Germany
- Institute of Microbiology, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Braunschweig, Germany
- Correspondence: (M.S.); (R.W.K.); Tel.: +49-0531-6181-4240 (M.S.); +49-0531-391-3230 (R.W.K.)
| | - Reinhard W. Köster
- Division of Cellular and Molecular Biology, Zoological Institute, Technische Universität Braunschweig, Spielmannstraße 7, 38106 Braunschweig, Germany; (M.R.); (B.W.); (A.W.-A.)
- Correspondence: (M.S.); (R.W.K.); Tel.: +49-0531-6181-4240 (M.S.); +49-0531-391-3230 (R.W.K.)
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