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Lo Piparo E, Christinat N, Badoud F. From Structural Alerts to Signature Fragment Alerts: A Case Study on Pyrrolizidine Alkaloids. Chem Res Toxicol 2023; 36:213-229. [PMID: 36692496 DOI: 10.1021/acs.chemrestox.2c00292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Even though modeling is considered a valid alternative to mutagenicity testing for substances with known structures, it can be applied for mixtures only if all of the single chemical structures are identified. Within the present work, we investigate a new avenue to exploit computational toxicology for mixtures, such as plant-based food ingredients. Indeed, considering that in the absence of toxicological information, an important early consideration is whether any substance may be genotoxic through the mutagenic mechanism of action, we tried to establish a correspondence between genotoxic structural alerts (SAs) and so-called signature fragment alerts (SFAs). Once this correspondence is established, chromatograms could be screened for chemical features associated with genotoxic alerts. Pyrrolizidine alkaloids (PAs), a large group of natural toxins (several of them known as genotoxic) were used as a case study because their early identification would bring significant benefits. The method was built using 56 PA pure standards, resulting in the characterization of signature fragment alerts. Finally, the approach was verified in real plant-based samples such as herbal tea and alfalfa, where the screening of signature fragment alerts allowed highlighting quickly the presence of genotoxic PAs in plant-based mixtures. Therefore, the SFA analysis can be used for risk prioritization of newly identified PAs and for their identification in mixtures, contributing to the unnecessary use of animal experimentation for genotoxicity testing.
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Affiliation(s)
- Elena Lo Piparo
- Food Safety Research, Nestlé Research, CH-1000 Lausanne, Switzerland
| | | | - Flavia Badoud
- Analytical Sciences, Nestlé Research, CH-1000 Lausanne, Switzerland
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Profiling of pyrrolizidine alkaloids using a retronecine-based untargeted metabolomics approach coupled to the quantitation of the retronecine-core in medicinal plants using UHPLC-QTOF. J Pharm Biomed Anal 2023; 224:115171. [PMID: 36459765 DOI: 10.1016/j.jpba.2022.115171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/07/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Pyrrolizidine alkaloids (PA) are secondary metabolites of high toxicological relevance. Several PA quantitative methodologies were developed based on a limited number of certified standards, including time consuming solid phase extraction (SPE) purification steps. Herein, we shed light on the variability of PA in herbal extracts and propose a quantification methodology based on ultra-high-performance liquid chromatography high-resolution mass spectrometry (UHPLC-HRMS) for the evaluation of the total PA content as retronecine-equivalents (RE) directly from crude matrices. Particularly in the focus of the investigation were Alkanna spp. (Boraginaceae), which possess a wide range of pharmaceutical properties. In addition, a comparative PA screening of crude and SPE enriched extracts was performed and PA-containing plants from Fabaceae and Compositae families were included to demonstrate universal applicability. In total, 105 PA were identified using HRMSe experiments, specific MS/MS fragmentation PA patterns, a customized in-house library and literature data. Among them, 18 glycosidic PA derivatives were reported for the first time in literature. Using a hierarchical clustering approach, PA distribution in herbal extracts was shown to be family-dependent and significantly different among species. This was further supported by the results of the total PA concentrations, obtained using a retronecine/heliotridine/internal standard-based targeted UHPLC-HRMS quantification method, which varied from 8.64 ± 0.08-3096.28 ± 273.72 μg RE/g extract dry weight in shoots extracts of Alkanna spp. and leaves extracts of Crotalaria retusa L. respectively. Worth mentioning is that the procedure allowed to quantify PA in Alkanna spp. If the procedure based on 35 specific PA recommended by European regulations had been used, results would have been equal to zero for the four species since none were observed in Alkanna spp. Finally, by combining the RE results with the corresponding dereplication results, a customized correction factor for each extract (ranging from 2.12 to 2.48) was assessed leading to a more accurate estimate of the PA content regardless of the molecular weight of each PA. The present methodology will facilitate PA quantification directly from crude extracts and avoid the underestimation the real PA content due to limited availabilty of authentic reference compounds in botanical extracts used in phytomedicines or food supplements/cosmetics.
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Duan Z, Yang T, Li L, Wang X, Wei C, Xia Z, Chai Y, Huang X, Zhang L, Jiang Z. Comparison of bile acids profiles in the enterohepatic circulation system of mice and rats. J Steroid Biochem Mol Biol 2022; 220:106100. [PMID: 35341917 DOI: 10.1016/j.jsbmb.2022.106100] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 02/27/2022] [Accepted: 03/22/2022] [Indexed: 11/27/2022]
Abstract
Bile acids (BAs) were selected as biomarkers for the diagnosis and prevention of multiple liver diseases, and they were also considered as an important signal transductor via "liver-gut" axis. As important factors for maintaining the normal function and tissue morphology, BA homeostasis throughout the enterohepatic circulation system was guaranteed by BA synthases and transporters, nuclear receptors (NRs) and gut microbiota, all of which presented significant species differences. Thus, we simultaneously quantify BA profiles in the enterohepatic circulation of SD rats and C57BL/6 mice to reveal the species differences of BA homeostasis between these two main rodents of preclinical studies. Our results showed that BA profiles of mice plasma, bile and liver were most dissimilar from these of rats. Meanwhile, BAs profiles also presented obvious species differences in the intestine of mice and rats, especially small intestine. Unlike rats, taurine-conjugated bile acids (T-BAs) were predominant in mice small intestine content and tissue, in which taurocholic acid (TCA) was the most prominent BAs. BAs dynamic analysis showed that compared with rats, mice showed stranger taurine and glycine de-conjugations in lager intestine. However, both the ratios of unconjugated bile acids (Un-BAs) to conjugated BAs, and secondary BAs to primary BAs in mice small content and tissue were all much lower than these in rats. Furthermore, ileum BAs profiles also showed significantly separation trend between rats and mice, whether content or tissue. Our data revealed that the patterns of BAs homeostasis in mice enterohepatic circulation system were significantly different from these in rats (especially in intestine), suggesting that more cautious should be paid to the selection of BAs as biomarkers for disease diagnosis or/and drug induced toxicity, and the certain role and mechanism of individual BA in the pathological process of BA-related diseases via "liver-gut" axis should be verified by using of multiple species.
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Affiliation(s)
- Zhicheng Duan
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Tingting Yang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Lin Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Xue Wang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Chujing Wei
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Ziyin Xia
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Yuanyuan Chai
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Xin Huang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China
| | - Luyong Zhang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China; Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zhenzhou Jiang
- New Drug Screening Center, Jiangsu Center for Pharmacodynamics Research and Evaluation, China Pharmaceutical University, Nanjing 210009, China; Key Laboratory of Drug Quality Control and Pharmacovigilance, Ministry of Education, China Pharmaceutical University, Nanjing 210009, China.
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Multi-methodological approach for the Quality assessment of Senecionis scandentis Herba (Qianliguang) in the herbal market. PLoS One 2022; 17:e0267143. [PMID: 35421189 PMCID: PMC9009707 DOI: 10.1371/journal.pone.0267143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 04/01/2022] [Indexed: 11/19/2022] Open
Abstract
We set forth to assess the quality of an herbal medicine sold in Hong Kong called Qianliguang by employing a multi-methodological approach. The quality is set by its identity, chemical composition, and bioactivities, among others. Qianliguang (Senecionis scandentis Herba, Senecio scandens Buch.-Ham. ex D.Don) has known antibacterial properties. However, it is poisonous and overconsumption can result in liver damage. Eighteen Qianliguang samples were purchased from herbal shops at various districts in Hong Kong. Samples were first authenticated organoleptically. DNA barcoding at the psbA-trnH, ITS2, and rbcL loci was then conducted to confirm the species. HPLC-UV was performed to screen for the presence of the chemical compounds and to quantify the flavonoid hyperoside. UPLC-MS was used to quantify the amount of the toxic pyrrolizidine alkaloid (PA) adonifoline. Microdilution assay was performed to show the antibacterial effect on Streptococcus aureus and S. pneumoniae. Results showed that five samples were found to be substituted by species belonging to the genus Lespedeza; four samples were mixtures containing not only Qianliguang but also Achyranthes aspera L., Lonicera confusa DC., or Solanum nigrum L. HPLC-UV showed that only ten contained enough hyperoside to meet the standard requirement. In addition, nine samples had adonifoline that exceeded the toxicity standard requirement. In the microdilution assay, samples containing Qianliguang showed inhibition on S. aureus and S. pneumoniae, while among the five Lespedeza sp. samples the antibacterial effects on S. aureus were not detectable; only one sample showed inhibition to S. pneumoniae. Our study illustrated the necessity of using a multi-methodological approach for herbal medicine quality assessment. We also showed that Qianliguang samples in the Hong Kong market were either toxic or adulterated. It is therefore essential to improve the quality control of Qianliguang and probably other herbs in the herbal market.
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The Food Contaminants Pyrrolizidine Alkaloids Disturb Bile Acid Homeostasis Structure-Dependently in the Human Hepatoma Cell Line HepaRG. Foods 2021; 10:foods10051114. [PMID: 34069968 PMCID: PMC8157858 DOI: 10.3390/foods10051114] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/11/2021] [Accepted: 05/12/2021] [Indexed: 11/18/2022] Open
Abstract
Pyrrolizidine alkaloids (PAs) are a group of secondary plant metabolites being contained in various plant species. The consumption of contaminated food can lead to acute intoxications in humans and exert severe hepatotoxicity. The development of jaundice and elevated bile acid concentrations in blood have been reported in acute human PA intoxication, indicating a connection between PA exposure and the induction of cholestasis. Additionally, it is considered that differences in toxicity of individual PAs is based on their individual chemical structures. Therefore, we aimed to elucidate the structure-dependent disturbance of bile acid homeostasis by PAs in the human hepatoma cell line HepaRG. A set of 14 different PAs, including representatives of all major structural characteristics, namely, the four different necine bases retronecine, heliotridine, otonecine and platynecine and different grades of esterification, was analyzed in regard to the expression of genes involved in bile acid synthesis, metabolism and transport. Additionally, intra- and extracellular bile acid levels were analyzed after PA treatment. In summary, our data show significant structure-dependent effects of PAs on bile acid homeostasis. Especially PAs of diester type caused the strongest dysregulation of expression of genes associated with cholestasis and led to a strong decrease of intra- and extracellular bile acid concentrations.
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Waizenegger J, Glück J, Henricsson M, Luckert C, Braeuning A, Hessel-Pras S. Pyrrolizidine Alkaloids Disturb Bile Acid Homeostasis in the Human Hepatoma Cell Line HepaRG. Foods 2021; 10:foods10010161. [PMID: 33466663 PMCID: PMC7828834 DOI: 10.3390/foods10010161] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 01/06/2021] [Accepted: 01/11/2021] [Indexed: 12/28/2022] Open
Abstract
1,2-unsaturated pyrrolizidine alkaloids (PAs) belong to a group of secondary plant metabolites. Exposure to PA-contaminated feed and food may cause severe hepatotoxicity. A pathway possibly involved in PA toxicity is the disturbance of bile acid homeostasis. Therefore, in this study, the influence of four structurally different PAs on bile acid homeostasis was investigated after single (24 h) and repeated (14 days) exposure using the human hepatoma cell line HepaRG. PAs induce a downregulation of gene expression of various hepatobiliary transporters, enzymes involved in bile acid synthesis, and conjugation, as well as several transcription regulators in HepaRG cells. This repression may lead to a progressive impairment of bile acid homeostasis, having the potential to accumulate toxic bile acids. However, a significant intracellular and extracellular decrease in bile acids was determined, pointing to an overall inhibition of bile acid synthesis and transport. In summary, our data clearly show that PAs structure-dependently impair bile acid homeostasis and secretion by inhibiting the expression of relevant genes involved in bile acid homeostasis. Furthermore, important biliary efflux mechanisms seem to be disturbed due to PA exposure. These mole-cular mechanisms may play an important role in the development of severe liver damage in PA-intoxicated humans.
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Affiliation(s)
- Julia Waizenegger
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; (J.W.); (J.G.); (C.L.); (A.B.)
- German Nutrition Society, Godesberger Allee 18, 53175 Bonn, Germany
| | - Josephin Glück
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; (J.W.); (J.G.); (C.L.); (A.B.)
| | - Marcus Henricsson
- Wallenberg Laboratory and Sahlgrenska Center for Cardiovascular and Metabolic Research, Institute of Medicine, University of Gothenburg, 413 45 Gothenburg, Sweden;
| | - Claudia Luckert
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; (J.W.); (J.G.); (C.L.); (A.B.)
| | - Albert Braeuning
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; (J.W.); (J.G.); (C.L.); (A.B.)
| | - Stefanie Hessel-Pras
- Department of Food Safety, German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589 Berlin, Germany; (J.W.); (J.G.); (C.L.); (A.B.)
- Correspondence: ; Tel.: +49-30-18412-25203
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Zheng S, Wang Q, Gao C, Ge Y, Cheng R. The complete chloroplast genome of the Chinese medicinal herb Senecio scandens. Mitochondrial DNA B Resour 2020. [DOI: 10.1080/23802359.2020.1750317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Affiliation(s)
- Shuning Zheng
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Qirui Wang
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Chenshu Gao
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
| | - Yuqing Ge
- The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Rubin Cheng
- College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, China
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Pan X, Zhou J, Chen Y, Xie X, Rao C, Liang J, Zhang Y, Peng C. Classification, hepatotoxic mechanisms, and targets of the risk ingredients in traditional Chinese medicine-induced liver injury. Toxicol Lett 2020; 323:48-56. [PMID: 32017980 DOI: 10.1016/j.toxlet.2020.01.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 12/29/2019] [Accepted: 01/31/2020] [Indexed: 12/13/2022]
Abstract
Traditional Chinese medicine (TCM) has become a crucial cause of drug-induced liver injury (DILI). Differ from chemical medicines, TCM feature more complex and mostly indefinite components. This review aimed to clarify the classification, underlying mechanisms and targets of the risk components in TCM-induced liver injury to further guide the secure application of TCM. Relevant studies or articles published on the PubMed database from January 2008 to December 2019 were searched. Based on the different chemical structures of the risk ingredients in TCM, they are divided into alkaloids, glycosides, toxic proteins, terpenoids and lactones, anthraquinones, and heavy metals. According to whether drug metabolism is activated or hepatocytes are directly attacked during TCM-induced liver injury, the high-risk substances can be classified into metabolic activation, non-metabolic activation, and mixed types. Mechanisms of the hepatotoxic ingredients in TCM-induced hepatotoxicity, including cytochrome P450 (CYP450) induction, mitochondrial dysfunction, oxidative damage, apoptosis, and idiosyncratic reaction, were also summarized. The targets involved in the risk ingredient-induced hepatocellular injury mainly include metabolic enzymes, nuclear receptors, transporters, and signaling pathways. Our periodic review and summary on the risk signals of TCM-induced liver injury must be beneficial to the integrated analysis on the multi-component, multi-target, and multi-effect characteristics of TCM-induced hepatotoxicity.
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Affiliation(s)
- Xiaoqi Pan
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China; School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Jie Zhou
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Yan Chen
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Xiaofang Xie
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Chaolong Rao
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Jie Liang
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Ying Zhang
- School of Public Health, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China
| | - Cheng Peng
- School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 610075, China.
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Xu J, Wang W, Yang X, Xiong A, Yang L, Wang Z. Pyrrolizidine alkaloids: An update on their metabolism and hepatotoxicity mechanism. LIVER RESEARCH 2019. [DOI: 10.1016/j.livres.2019.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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An important mechanism of herb-induced hepatotoxicity: To produce RMs based on active functional groups-containing ingredients from phytomedicine by binding CYP450s. CHINESE HERBAL MEDICINES 2019. [DOI: 10.1016/j.chmed.2019.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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Duan RY, Xiang GH, Lin YX, Luo YC, Peng RM. The complete chloroplast genome of the invasive plant Senecio vulgaris L. (Asteraceae). Mitochondrial DNA B Resour 2019. [DOI: 10.1080/23802359.2019.1612295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Ren-Yan Duan
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, PR China
- Anhui Key Laboratory of Biodiversity Studies and Ecological Conservation in Southwestern Anhui Province, Anqing Normal University, Anqing, PR China
| | - Guo-Hong Xiang
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, PR China
| | - Yu-Xiang Lin
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, PR China
| | - Yu-Cai Luo
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, PR China
| | - Ri-Min Peng
- College of Agriculture and Biotechnology, Hunan University of Humanities, Science and Technology, Loudi, PR China
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Comparative analysis of toxic components in different medicinal parts of Gynura japonica and its toxicity assessment on mice. PHYTOMEDICINE 2018; 54:77-88. [PMID: 30668385 DOI: 10.1016/j.phymed.2018.06.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/27/2018] [Accepted: 06/18/2018] [Indexed: 02/08/2023]
Abstract
BACKGROUND The roots of Gynura japonica are used as traditional medicine for treating blood stasis or traumatic injury even though hundreds of hepatic sinusoidal obstruction syndrome cases have been reported after consumption of the roots, which contain large amounts of hepatotoxic pyrrolizidine alkaloids (HPAs). However, no information is available about the toxic compounds in the aerial parts of G. japonica, which are also used as herbal medicines and even vegetables in several areas. Thus, the toxic chemicals in the aerial parts of G. japonica, i.e., HPAs, must be urgently identified. PURPOSE In this study, we aimed to 1) identify the toxic compounds in different medicinal parts and 2) examine the hepatotoxicity of G. japonica. STUDY DESIGN A total of 35 batches of the roots and aerial parts of G. japonica were collected from different sources and analyzed for HPAs. The hepatotoxicity of different extracts (i.e., total extracts [TE] and total alkaloids [TA]) and a single compound (i.e., senecionine) was evaluated on mice. METHODS Qualitative analysis of HPAs was performed using an ultra-performance liquid chromatography (UPLC)-mass spectrometry (MS)-parent ion scan approach, whereas a quantitative assay was performed by a UPLC-MS-selected ion monitoring approach. Male C57BL mice were orally administered the different extracts or the single compound at dosages equivalent to 50 mg HPAs/kg body weight. The sera and the livers were collected at 48 h after treatment and used to evaluate the hepatotoxicity through serum clinical biomarkers assay, liver histology, and bile acid profiling. RESULTS A total of 21 HPAs were identified in the roots and the aerial parts. The roots contained higher levels of HPAs (4.90 mg/g) than did the aerial parts (2.21 mg/g). TE and TA induced similar acute liver injuries, but senecionine was considerably more toxic than these extracts. Mice treated with TE showed significantly impaired bile acid homeostasis in the sera and the livers. CONCLUSION The roots and aerial parts of G. japonica contained large amounts of HPAs, including senecionine, which were responsible for the hepatotoxicity of G. japonica. Bile acid homeostasis was uniquely impaired after exposure to the plant. Therefore, neither the roots nor the aerial parts of G. japonica should be consumed as medicines or vegetables.
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Jing J, Teschke R. Traditional Chinese Medicine and Herb-induced Liver Injury: Comparison with Drug-induced Liver Injury. J Clin Transl Hepatol 2018; 6:57-68. [PMID: 29577033 PMCID: PMC5863000 DOI: 10.14218/jcth.2017.00033] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/24/2017] [Accepted: 08/28/2017] [Indexed: 12/16/2022] Open
Abstract
Cases of suspected herb-induced liver injury (HILI) caused by herbal Traditional Chinese Medicines (TCMs) and of drug-induced liver injury (DILI) are commonly published in the scientific literature worldwide. As opposed to the multiplicity of botanical chemicals in herbal TCM products, which are often mixtures of several herbs, conventional Western drugs contain only a single synthetic chemical. It is therefore of interest to study how HILI by TCM and DILI compare with each other, and to what extent results from each liver injury type can be transferred to the other. China is among the few countries with a large population using synthetic Western drugs as well as herbal TCM. Therefore, China is well suited to studies of liver injury comparing drugs with TCM herbs. Despite some concordance, recent analyses of liver injury cases with verified causality, using the Roussel Uclaf Causality Assessment Method, revealed major differences in HILI caused by TCMs as compared to DILI with respect to the following features: HILI cases are less frequently observed as compared to DILI, have a smaller proportion of females and less unintentional rechallenge events, and present a higher rate of hepatocellular injury features. Since many results were obtained among Chinese residents who had access to and had used Western drugs and TCM herbs, such ethnic homogeneity supports the contention that the observed differences of HILI and DILI in the assessed population are well founded.
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Affiliation(s)
- Jing Jing
- Medical School of Chinese PLA, Beijing, China
- Integrative Medical Center, 302 Military Hospital, Beijing, China
| | - Rolf Teschke
- Department of Internal Medicine II, Division of Gastroenterology and Hepatology, Klinikum Hanau, Teaching Hospital of the Medical Faculty of the Goethe University, Frankfurt/Main, Germany
- *Correspondence to: Rolf Teschke, Department of Internal Medicine II, Klinikum Hanau, Teaching Hospital of the Goethe University of Frankfurt/Main, Leimenstrasse 20, Hanau D-63450, Germany. Tel: +49-6181-21859, Fax: +49-6181-2964211, E-mail:
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Xiong A, Yan AL, Bi CWC, Lam KYC, Chan GKL, Lau KKM, Dong TTX, Lin H, Yang L, Wang Z, Tsim KWK. Clivorine, an otonecine pyrrolizidine alkaloid from Ligularia species, impairs neuronal differentiation via NGF-induced signaling pathway in cultured PC12 cells. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2016; 23:931-938. [PMID: 27387401 DOI: 10.1016/j.phymed.2016.06.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 06/02/2016] [Accepted: 06/08/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND Pyrrolizidine alkaloids (PAs) are commonly found in many plants including those used in medical therapeutics. The hepatotoxicities of PAs have been demonstrated both in vivo and in vitro; however, the neurotoxicities of PAs are rarely mentioned. PURPOSE In this study, we aimed to investigate in vitro neurotoxicities of clivorine, one of the PAs found in various Ligularia species, in cultured PC12 cells. STUDY DESIGN PC12 cell line was employed to first elucidate the neurotoxicity and the underlying mechanism of clivorine, including cell viability and morphology change, neuronal differentiation marker and signaling pathway. METHODS PC12 cells were challenged with series concentrations of clivorine and/or nerve growth factor (NGF). The cell lysates were collected for MTT assay, trypan blue staining, immunocytofluorescent staining, qRT-PCR and western blotting. RESULTS Clivorine inhibited cell proliferation and neuronal differentiation evidenced by MTT assay and dose-dependently reducing neurite outgrowth, respectively. In addition, clivorine decreased the level of mRNAs encoding for neuronal differentiation markers, e.g. neurofilaments and TrkA (NGF receptor). Furthermore, clivorine reduced the NGF-induced the phosphorylations of TrkA, protein kinase B and cAMP response element-binding protein in cultured PC12 cells. CONCLUSION Taken together, our results suggest that clivorine might possess neurotoxicities in PC12 cells via down-regulating the NGF/TrkA/Akt signaling pathway. PAs not only damage the liver, but also possess neurotoxicities, which could possibly result in brain disorders, such as depression.
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Affiliation(s)
- Aizhen Xiong
- The MOE Key Laboratory for Standardization of Chinese Medicines and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China; Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Artemis Lu Yan
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Cathy W C Bi
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Kelly Y C Lam
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Gallant K L Chan
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Kitty K M Lau
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Tina T X Dong
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Huangquan Lin
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China
| | - Li Yang
- The MOE Key Laboratory for Standardization of Chinese Medicines and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Zhengtao Wang
- The MOE Key Laboratory for Standardization of Chinese Medicines and The SATCM Key Laboratory for New Resources and Quality Evaluation of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Karl W K Tsim
- Division of Life Science, Center for Chinese Medicine and State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay Road, Hong Kong, China.
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15
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Wu C, Zhang H, Wang C, Qin H, Zhu M, Zhang J. An Integrated Approach for Studying Exposure, Metabolism, and Disposition of Multiple Component Herbal Medicines Using High-Resolution Mass Spectrometry and Multiple Data Processing Tools. ACTA ACUST UNITED AC 2016; 44:800-8. [PMID: 27013399 DOI: 10.1124/dmd.115.068189] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 03/23/2016] [Indexed: 11/22/2022]
Abstract
A typical prescription of traditional Chinese medicine (TCM) contains up to a few hundred prototype components. Studying their absorption, metabolism, distribution, and elimination (ADME) presents great challenges. The objective of this study was to develop a practical approach for investigating ADME of individual prototypes in TCM. An active fraction of Xiao-Xu-Ming decoction (AF-XXMD) as a model TCM prescription was orally administered to rats. AF-XXMD-related components in plasma, urine, bile, and feces were detected using high-resolution mass spectrometry and background subtraction, an untargeted data-mining tool. Components were then structurally characterized on the basis of MS(n) spectral data. Connection of detected AF-XXMD metabolites to their precursor species, either prototypes or upstream metabolites, were determined on the basis of mass spectral similarity and the matching of biotransformation reactions. As a result, 247 AF-XXMD-related components were detected and structurally characterized in rats, 134 of which were metabolites. Among 198 AF-XXMD prototypes dosed, 65 were fully or partially absorbed and 13 prototypes and 34 metabolites were found in the circulation. Glucuronidation, isomerization, and deglycosylation followed by biliary and urinary excretions and direct elimination of prototypes via kidney and liver were the major clearance pathways of AF-XXMD prototypes. As an example, the ADME profile of H56, the single major AF-XXMD component in rat plasma, was elucidated on the basis of profiles of H56-related components in plasma and excreta. The results demonstrate that the new analytical approach is a useful tool for rapid and comprehensive detection and characterization of TCM components in biologic matrix in a TCM ADME study.
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Affiliation(s)
- Caisheng Wu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (C.Wu., C.Wa., H.Q., J.Z.); Department of Biotransformation, Bristol-Myers Squibb Company, Princeton, New Jersey (H.Z., M.Z.)
| | - Haiying Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (C.Wu., C.Wa., H.Q., J.Z.); Department of Biotransformation, Bristol-Myers Squibb Company, Princeton, New Jersey (H.Z., M.Z.)
| | - Caihong Wang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (C.Wu., C.Wa., H.Q., J.Z.); Department of Biotransformation, Bristol-Myers Squibb Company, Princeton, New Jersey (H.Z., M.Z.)
| | - Hailin Qin
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (C.Wu., C.Wa., H.Q., J.Z.); Department of Biotransformation, Bristol-Myers Squibb Company, Princeton, New Jersey (H.Z., M.Z.)
| | - Mingshe Zhu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (C.Wu., C.Wa., H.Q., J.Z.); Department of Biotransformation, Bristol-Myers Squibb Company, Princeton, New Jersey (H.Z., M.Z.)
| | - Jinlan Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China (C.Wu., C.Wa., H.Q., J.Z.); Department of Biotransformation, Bristol-Myers Squibb Company, Princeton, New Jersey (H.Z., M.Z.)
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