Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish

Fuzi, a Chinese herb widely used in clinical settings, exhibits varying levels of toxicity depending on its geographical origin. Diester-type alkaloids are the primary contributors to the toxicity of Fuzi. This study aims to investigate regional differences and underlying mechanisms of Fuzi-induced...

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Main Authors: Xiaoqi Pan, Tianyu Liang, Han Feng, Weiying Liu, Qiaoxin Mou, Xiaoyu Yan
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Pharmacology
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Online Access:https://www.frontiersin.org/articles/10.3389/fphar.2024.1500527/full
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author Xiaoqi Pan
Xiaoqi Pan
Tianyu Liang
Han Feng
Weiying Liu
Qiaoxin Mou
Xiaoyu Yan
author_facet Xiaoqi Pan
Xiaoqi Pan
Tianyu Liang
Han Feng
Weiying Liu
Qiaoxin Mou
Xiaoyu Yan
author_sort Xiaoqi Pan
collection DOAJ
description Fuzi, a Chinese herb widely used in clinical settings, exhibits varying levels of toxicity depending on its geographical origin. Diester-type alkaloids are the primary contributors to the toxicity of Fuzi. This study aims to investigate regional differences and underlying mechanisms of Fuzi-induced neurotoxicity across China. Matrix-assisted laser desorption/Ionization mass spectrometry imaging (MALDI-MSI) method was employed to map the spatial distribution of six key diester-type alkaloids from Fuzi samples originating from five major regions. The results showed that the diester-type alkaloids were primarily distributed in the cuticle of Anguo- and Ludian-Fuzi, in the cuticle, cork, and pith of Butuo-Fuzi, in the phloem and pith tissues of Chenggu-Fuzi, and in the cuticle, cork, inner phloem, and pith of Jiangyou-Fuzi. When zebrafish were exposed to a Fuzi decoction for 24 h, it was observed that Jiangyou-Fuzi induced the most significant neurobehavioral abnormalities, lipid peroxidation damage, and aberrant neurotransmitters release. RNA sequencing analysis further indicated that the amino acid metabolism, ErbB, cGMP-PKG, and p53 signaling pathways-regulated by changes in the expression of Glub, Mao, GAB1, PRKG1B, PSEN2, and BAXα genes were disrupted to varying extents by Fuzi from different origins. In summary, the regional variability in the neurotoxicity of Fuzi can be attributed to differences in the distribution of its active compounds and underlying mechanisms. Among the samples tested, Jiangyou-Fuzi exhibited the highest neurotoxicity, followed by Anguo-, Chenggu-, Ludian-, and Butuo-Fuzi.
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spelling doaj-art-3f4a656c9150472f9e58f0a1c70fc7e82025-02-05T07:32:33ZengFrontiers Media S.A.Frontiers in Pharmacology1663-98122025-02-011510.3389/fphar.2024.15005271500527Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafishXiaoqi Pan0Xiaoqi Pan1Tianyu Liang2Han Feng3Weiying Liu4Qiaoxin Mou5Xiaoyu Yan6State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, ChinaSchool of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, ChinaSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, ChinaSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, ChinaSchool of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, ChinaSchool of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, ChinaState Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, ChinaFuzi, a Chinese herb widely used in clinical settings, exhibits varying levels of toxicity depending on its geographical origin. Diester-type alkaloids are the primary contributors to the toxicity of Fuzi. This study aims to investigate regional differences and underlying mechanisms of Fuzi-induced neurotoxicity across China. Matrix-assisted laser desorption/Ionization mass spectrometry imaging (MALDI-MSI) method was employed to map the spatial distribution of six key diester-type alkaloids from Fuzi samples originating from five major regions. The results showed that the diester-type alkaloids were primarily distributed in the cuticle of Anguo- and Ludian-Fuzi, in the cuticle, cork, and pith of Butuo-Fuzi, in the phloem and pith tissues of Chenggu-Fuzi, and in the cuticle, cork, inner phloem, and pith of Jiangyou-Fuzi. When zebrafish were exposed to a Fuzi decoction for 24 h, it was observed that Jiangyou-Fuzi induced the most significant neurobehavioral abnormalities, lipid peroxidation damage, and aberrant neurotransmitters release. RNA sequencing analysis further indicated that the amino acid metabolism, ErbB, cGMP-PKG, and p53 signaling pathways-regulated by changes in the expression of Glub, Mao, GAB1, PRKG1B, PSEN2, and BAXα genes were disrupted to varying extents by Fuzi from different origins. In summary, the regional variability in the neurotoxicity of Fuzi can be attributed to differences in the distribution of its active compounds and underlying mechanisms. Among the samples tested, Jiangyou-Fuzi exhibited the highest neurotoxicity, followed by Anguo-, Chenggu-, Ludian-, and Butuo-Fuzi.https://www.frontiersin.org/articles/10.3389/fphar.2024.1500527/fullFuzidiester-type alkaloidsregional differences neurotoxicityMALDI-MSIRNA sequencing
spellingShingle Xiaoqi Pan
Xiaoqi Pan
Tianyu Liang
Han Feng
Weiying Liu
Qiaoxin Mou
Xiaoyu Yan
Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
Frontiers in Pharmacology
Fuzi
diester-type alkaloids
regional differences neurotoxicity
MALDI-MSI
RNA sequencing
title Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
title_full Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
title_fullStr Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
title_full_unstemmed Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
title_short Toxicological landscape of Fuzi: a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
title_sort toxicological landscape of fuzi a comprehensive study on the spatial distribution of toxicants and regional neurotoxicity variability in zebrafish
topic Fuzi
diester-type alkaloids
regional differences neurotoxicity
MALDI-MSI
RNA sequencing
url https://www.frontiersin.org/articles/10.3389/fphar.2024.1500527/full
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