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Chen H, Wang F, Ni X, Rigui Y, Bai Y, Xu L, Yang J, Zhang X, Deng J, Li J, Yin X, Ao W, Kwok KWH, Dong W. Aconitine disrupts serotonin neurotransmission via 5-hydroxytryptamine receptor in zebrafish embryo. J Appl Toxicol 2020; 41:483-492. [PMID: 33085127 DOI: 10.1002/jat.4059] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 07/14/2020] [Accepted: 08/08/2020] [Indexed: 12/11/2022]
Abstract
Medicinal plants of the genus Aconitum are one of the most commonly used herbs in traditional medicine in East Asia to treat conditions related to the heart, pain, or inflammation. However, these herbs are also dangerous as accidental poisoning due to misuse is a recurring issue. These plants contain a number of diester-diterpenoid alkaloid compounds and aconitine is the most abundant and active one. This study investigated neurotoxicity of aconitine to zebrafish embryos in early development in relation to serotonin regulation. Experimental results showed that aconitine exposure (1, 10, and 100 μM) increased frequency of coiling behavior in zebrafish embryos in a dose-dependent manner and this effect can be triggered by either exposure to 5-hydroxytryptamine 1A (5-HT1A) receptor agonist (±)-8-hydroxy-2-(dipropylamino)tetralin (8-OH-DPAT) or overexpression of serotonin receptor 5-htr1ab. At the same time, coiling behavior caused by aconitine exposure could be rescued by co-exposure to 5-HT1A receptor antagonist WAY-100635 Maleate (WAY100635) and knockdown of 5-htr1ab using morpholino. Exposure to aconitine also significantly increased serotonin receptor 5-htr1ab and 5-htr1bd gene expression at 24 h post fertilization (hpf), but decreased their expression and protein expression of the serotonin receptor at 96 hpf with the high dose. These results suggest that neurotoxicity caused by aconitine is mediated through the 5-HT receptor.
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Affiliation(s)
- Hao Chen
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Feng Wang
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Xuan Ni
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Yi Rigui
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Yuxia Bai
- College of Traditional Mongolian Medicine and Pharmacy, Inner Mongolia University for the Nationalities, Tongliao, China
| | - Liang Xu
- College of Chemistry and Chemical Engineering, Inner Mongolia University for the Nationalities, Tongliao, China
| | - Jingfeng Yang
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Xuefu Zhang
- Analysis and Test Center, Inner Mongolia University for the Nationalities, Tongliao, China
| | - Jiang Deng
- Key Lab for Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine, Zunyi Medical College, Zunyi, China
| | - Jiawei Li
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Xiaoyu Yin
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
| | - Wuliji Ao
- College of Traditional Mongolian Medicine and Pharmacy, Inner Mongolia University for the Nationalities, Tongliao, China
| | - Kevin W H Kwok
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Hong Kong
| | - Wu Dong
- Inner Mongolia Key Laboratory of Toxicant Monitoring and Toxicology, Collage of Animal Science and Technology, Inner Mongolia University for Nationalities, Tongliao, China
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