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Wang JZ, Li XY, Zhang M, Xiao Y, Chen L, Deng MY, Huang S, Zhou XL. Synthesis and biological evaluation of lycoctonine derivatives with cardiotonic and calcium channels inhibitory activities. Bioorg Chem 2024; 146:107297. [PMID: 38503027 DOI: 10.1016/j.bioorg.2024.107297] [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: 01/17/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
In our previous study, a screening of a variety of lycotonine-type diterpenoid alkaloids were screened for cardiotonic activity revealed that lycoctonine had moderate cardiac effect. In this study, a series of structurally diverse of lycoctonine were synthesized by modifying on B-ring, D-ring, E-ring, F-ring, N-atom or salt formation on lycoctonine skeleton. We evaluated the cardiotonic activity of the derivatives by isolated frog heart, aiming to identify some compounds with significantly enhanced cardiac effects, among which compound 27 with a N-isobutyl group emerged as the most promising cardiotonic candidate. Furthermore, the cardiotonic mechanism of compound 27 was preliminarily investigated. The result suggested that the cardiotonic effect of compound 27 is related to calcium channels. Patch clamp technique confirmed that the compound 27 had inhibitory effects on CaV1.2 and CaV3.2, with inhibition rates of 78.52 % ± 2.26 % and 79.05 % ± 1.59 % at the concentration of 50 μM, respectively. Subsequently, the protective effect of 27 on H9c2 cells injury induced by cobalt chloride was tested. In addition, compound 27 can alleviate CoCl2-induced myocardial injury by alleviating calcium overload. These findings suggest that compound 27 was a new structural derived from lycoctonine, which may serve as a new lead compound for the treatment of heart failure.
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Affiliation(s)
- Jian-Zhu Wang
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China
| | - Xiang-Yu Li
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China
| | - Min Zhang
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China; Yibin Institute of Southwest Jiaotong University, Yibin, Sichuan, PR China
| | - Yan Xiao
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China
| | - Lin Chen
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China
| | - Meng-Yi Deng
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China; Yibin Institute of Southwest Jiaotong University, Yibin, Sichuan, PR China
| | - Shuai Huang
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China; Yibin Institute of Southwest Jiaotong University, Yibin, Sichuan, PR China.
| | - Xian-Li Zhou
- School of Life Science and Engineering Southwest, Jiaotong University, Chengdu, Sichuan, PR China; Yibin Institute of Southwest Jiaotong University, Yibin, Sichuan, PR China.
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