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Liao Y, Wang JY, Pan Y, Zou X, Wang C, Peng Y, Ao YL, Lam MF, Zhang X, Zhang XQ, Shi L, Zhang S. The Protective Effect of (-)-Tetrahydroalstonine against OGD/R-Induced Neuronal Injury via Autophagy Regulation. Molecules 2023; 28:molecules28052370. [PMID: 36903613 PMCID: PMC10005631 DOI: 10.3390/molecules28052370] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 01/03/2023] [Revised: 02/26/2023] [Accepted: 02/28/2023] [Indexed: 03/08/2023] Open
Abstract
Here, (-)-Tetrahydroalstonine (THA) was isolated from Alstonia scholaris and investigated for its neuroprotective effect towards oxygen-glucose deprivation/re-oxygenation (OGD/R)-induced neuronal damage. In this study, primary cortical neurons were pre-treated with THA and then subjected to OGD/R induction. The cell viability was tested by the MTT assay, and the states of the autophagy-lysosomal pathway and Akt/mTOR pathway were monitored by Western blot analysis. The findings suggested that THA administration increased the cell viability of OGD/R-induced cortical neurons. Autophagic activity and lysosomal dysfunction were found at the early stage of OGD/R, which were significantly ameliorated by THA treatment. Meanwhile, the protective effect of THA was significantly reversed by the lysosome inhibitor. Additionally, THA significantly activated the Akt/mTOR pathway, which was suppressed after OGD/R induction. In summary, THA exhibited promising protective effects against OGD/R-induced neuronal injury by autophagy regulation through the Akt/mTOR pathway.
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Affiliation(s)
- Yumei Liao
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Jun-Ya Wang
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yan Pan
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Xueyi Zou
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Chaoqun Wang
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yinghui Peng
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Yun-Lin Ao
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Mei Fong Lam
- Centro Hospitalar Conde de São Januário, Macau, China
| | - Xiaoshen Zhang
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
| | - Xiao-Qi Zhang
- Guangdong Provincial Engineering Research Center for Modernization of TCM, College of Pharmacy, Jinan University, Guangzhou 510632, China
- NMPA Key Laboratory for Quality Evaluation of TCM, Jinan University, Guangzhou 510632, China
- Correspondence: (X.-Q.Z.); (S.Z.)
| | - Lei Shi
- Department of Cardiovascular Surgery, The First Affiliated Hospital, Jinan University, Guangzhou 510632, China
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
| | - Shiqing Zhang
- JNU-HKUST Joint Laboratory for Neuroscience and Innovative Drug Research, College of Pharmacy, Jinan University, Guangzhou 510632, China
- Correspondence: (X.-Q.Z.); (S.Z.)
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