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Tang X, Huang Y, Fu W, Wang P, Feng L, Yang J, Zhu H, Huang X, Ming Q, Li P. Digirseophene A promotes recovery in injured developing cerebellum via AMPK/AKT/GSK3β pathway-mediated neural stem cell proliferation. Biomed Pharmacother 2024; 177:117046. [PMID: 38981241 DOI: 10.1016/j.biopha.2024.117046] [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: 03/03/2024] [Revised: 06/07/2024] [Accepted: 06/25/2024] [Indexed: 07/11/2024] Open
Abstract
Neural stem cells (NSCs) exhibit a remarkable capacity for self-renewal and have the potential to differentiate into various neural lineage cells, which makes them pivotal in the management of neurological disorders. Harnessing the inherent potential of endogenous NSCs for enhancing nerve repair and regeneration represents an optimal approach to addressing diseases of the nervous system. In this study, we explored the potential of a novel benzophenone derivative named Digirseophene A (DGA), which was isolated from the endophytic fungus Corydalis tomentella. Previous experiments have extensively identified and characterized DGA, revealing its unique properties. Our findings demonstrate the remarkable capability of DGA to stimulate neural stem cell proliferation, both in vitro and in vivo. Furthermore, we established a model of radiation-induced cerebellar injury to assess the effects of DGA on the distribution of different cell subpopulations within the damaged cerebellum, thereby suggesting its beneficial role in cerebellar repair. In addition, our observations on a primary NSCs model revealed that DGA significantly increased cellular oxygen consumption, indicating increased energy and metabolic demands. By utilizing various pathway inhibitors in combination with DGA, we successfully demonstrated its ability to counteract the suppressive impacts of AMPK and GSK3β inhibitors on NSC proliferation. Collectively, our research results strongly suggest that DGA, as an innovative compound, exerts its role in activating NSCs and promoting injury repair through the regulation of the AMPK/AKT/GSK3β pathway.
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Affiliation(s)
- Xiangyu Tang
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Yuting Huang
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Wenying Fu
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Pengbo Wang
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Liyuan Feng
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Jie Yang
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Hongyan Zhu
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Xiuning Huang
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China
| | - Qianliang Ming
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China.
| | - Peng Li
- College of Pharmacy and Laboratory Medicine, Army Medical University, No. 30 Gaotanyan Centre Street, Shapingba District, Chong Qing, China.
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Abstract
Although the core concept of remyelination - based on the activation, migration, proliferation and differentiation of CNS progenitors - has not changed over the past 20 years, our understanding of the detailed mechanisms that underlie this process has developed considerably. We can now decorate the central events of remyelination with a host of pathways, molecules, mediators and cells, revealing a complex and precisely orchestrated process. These advances have led to recent drug-based and cell-based clinical trials for myelin diseases and have opened up hitherto unrecognized opportunities for drug-based approaches to therapeutically enhance remyelination.
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Thyroid Hormone Potentially Benefits Multiple Sclerosis via Facilitating Remyelination. Mol Neurobiol 2015; 53:4406-16. [PMID: 26243185 DOI: 10.1007/s12035-015-9375-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 07/22/2015] [Indexed: 01/23/2023]
Abstract
Myelin destruction due to inflammatory damage of oligodendrocytes (OLs) in conjunction with axonal degeneration is one of the major histopathological hallmarks of multiple sclerosis (MS), a common autoimmune disorder affecting the central nervous system (CNS). Therapies over the last 20 years mainly focus on the immune system and, more specifically, on the modulation of immune cell behavior. It seems to be effective in MS with relapse, while it is of little benefit to progressive MS in which neurodegeneration following demyelination outweighs inflammation. Otherwise, remyelination, as a result of oligodendrocyte production from oligodendrocyte precursor cells (OPCs), is considered to be a potential target for the treatment of progressive MS. In this review, positive effects of remyelination on MS will be discussed in view of the critical role played by thyroid hormone (TH), focusing on the following points: (1) promising treatment of TH on MS that potentially targets to remyelination; (2) the active role of TH that is able to promote remyelination; (3) the regulative role of TH that works on endogenous stem and precursor cells; (4) the effect of TH on gene transcription; and (5) a working hypothesis which is developed that TH can alleviate MS by promoting remyelination, and the mechanism of which is its regulative role in gene transcription of OPCs.
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