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Ren Q, Chen J, Wesseling S, Bouwmeester H, Rietjens IMCM. Physiologically based Kinetic Modeling-Facilitated Quantitative In Vitro to In Vivo Extrapolation to Predict the Effects of Aloe-Emodin in Rats and Humans. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16163-16176. [PMID: 38980703 PMCID: PMC11273626 DOI: 10.1021/acs.jafc.4c00969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 06/12/2024] [Accepted: 06/20/2024] [Indexed: 07/10/2024]
Abstract
Aloe-emodin, a natural hydroxyanthraquinone, exerts both adverse and protective effects. This study aimed at investigating these potential effects of aloe-emodin in humans upon the use of food supplements and herbal medicines using a physiologically based kinetic (PBK) modeling-facilitated quantitative in vitro to in vivo extrapolation (QIVIVE) approach. For this, PBK models in rats and humans were established for aloe-emodin including its active metabolite rhein and used to convert in vitro data on hepatotoxicity, nephrotoxicity, reactive oxidative species (ROS) generation, and Nrf2 induction to corresponding in vivo dose-response curves, from which points of departure (PODs) were derived by BMD analysis. The derived PODs were subsequently compared to the estimated daily intakes (EDIs) resulting from the use of food supplements or herbal medicines. It is concluded that the dose levels of aloe-emodin from food supplements or herbal medicines are unlikely to induce toxicity, ROS generation, or Nrf2 activation in liver and kidney.
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Affiliation(s)
- Qiuhui Ren
- Division of Toxicology, Wageningen
University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Jiaqi Chen
- Division of Toxicology, Wageningen
University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Sebastiaan Wesseling
- Division of Toxicology, Wageningen
University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Hans Bouwmeester
- Division of Toxicology, Wageningen
University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
| | - Ivonne M. C. M. Rietjens
- Division of Toxicology, Wageningen
University and Research, Stippeneng 4, Wageningen 6708 WE, The Netherlands
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Wang Y, Song J, He J, Zhang X, Lv Z, Dong F, Deng J. hsa_circ_0008500 regulates Benzo(a)pyrene-loaded gypsum-induced inflammation and apoptosis in human bronchial epithelial cells via activation of Ahr/C-myc pathways. Toxicol Lett 2024; 394:46-56. [PMID: 38408587 DOI: 10.1016/j.toxlet.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/20/2024] [Accepted: 02/18/2024] [Indexed: 02/28/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are major organic pollutants attached to fine particulate matter in the atmosphere. They induce lung inflammation, asthma, and other lung diseases. Exploring the toxic mechanism of PAHs on lung epithelial cells may provide a theoretical basis for the prevention and treatment of respiratory diseases induced by PAHs. In our study, 16 human bronchial epithelial (16HBE) cells were exposed to different concentrations of gypsum dust, Benzo(a)pyrene (BaP), and BaP-loaded gypsum dust for 24 hours. Gypsum dust loaded with BaP significantly increased the cytotoxicity of 16HBE cells, enhanced the production of lactate dehydrogenase (LDH), interleukin-6 (IL-6) and interleukin-8 (IL-8), induced cell apoptosis, and upregulate the expression of hsa_circ_0008500 (circ_0008500). The mechanism was studied with a BaP-loaded gypsum dust concentration of 1.25 mg/mL. StemRegenin 1 (SR1) pretreat significantly reduced the release of LDH, IL-6, and IL-8 and decreased the protein levels of Ahr、XAP2, C-myc, and p53. Second-generation sequencing indicated that circ_0008500 was highly expressed after 16HBE induced by BaP-loaded gypsum dust. Functional experiments confirmed that circ_0008500 promoted the inflammation and apoptosis of 16HBE cells induced by BaP-loaded gypsum dust by regulating the Ahr signaling pathway. Our study showed that fine particulate matter adsorption of BaP significantly increased the toxic effect of BaP on cells. By activating the Ahr/C-myc pathway, circ_0008500 promoted inflammation and apoptosis of 16HBE cells induced by BaP-loaded gypsum dust.
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Affiliation(s)
- Yujun Wang
- Department of Laboratory Medicine, North Sichuan Medical University, Nanchong 637000, China.
| | - Juan Song
- Department of Laboratory Medicine, Sichuan Santai People's Hospital, Mianyang 621100, China
| | - Jiarui He
- School of Laboratory Medicine, Chengdu Medical College, Chengdu 610500, China
| | - Xu Zhang
- Department of Clinical Laboratory, Sichuan Mianyang404 Hospital, Mianyang 621010, China
| | - Zhenzhen Lv
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
| | - Faqin Dong
- School of Environment and Resource, Southwest University of Science and Technology, Mianyang 621010, China
| | - Jianjun Deng
- Department of Laboratory Medicine, North Sichuan Medical University, Nanchong 637000, China; Department of Clinical Laboratory, Sichuan Mianyang404 Hospital, Mianyang 621010, China.
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Bernard A, Dudler V. Health Risk Assessment of Dermal Exposure to Polycyclic Aromatic Hydrocarbons from the Use of Infant Diapers. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:14760. [PMID: 36429479 PMCID: PMC9691111 DOI: 10.3390/ijerph192214760] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 06/16/2023]
Abstract
In September 2021, the European Chemicals Agency evaluated a dossier for restricting polycyclic aromatic hydrocarbons (PAHs) in infant diapers and concluded that risks were not demonstrated, because of inconclusive exposure data. To fill this gap, we measured the 16 priority PAHs of the U.S. Environmental Protection Agency in the diaper core of four brands and in the sheets and fastening tapes of six brands of commercially available diapers. Health risks were conservatively assessed by assuming that dermally absorbed PAHs can cause both local (skin cancer) and systemic critical effects (neurobehavioral changes). Total concentrations of PAHs in the diaper core and top sheet, the only significant contributors to skin exposure, averaged 26.5 μg/kg and 66.6 μg/kg, respectively. Excess skin cancer risks and hazard quotients for neurobehavioral effects calculated with the daily dose of total PAHs from the combined diaper core and top sheet averaged 1.44 × 10-7 and 1.19 × 10-2, respectively. The median daily doses of total PAHs and of its benzo[a]pyrene-equivalent from breast milk estimated worldwide are 171 and 30 times greater than that from the combined diaper core and top sheet, respectively. Altogether, these findings indicate that trace levels of PAHs found in infant diapers are unlikely to pose health risks.
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Affiliation(s)
- Alfred Bernard
- Institut de Recherche Expérimentale et Clinique (IREC), Université catholique de Louvain, 74 Avenue Hippocrate, 1200 Bruxelles, Belgium
| | - Vincent Dudler
- Federal Food Safety and Veterinary Office, Schwarzenburgstrasse 155, 3003 Bern, Switzerland
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Abstract
There is a need for paradigm change in the methodology employed for toxicological testing and assessment. It could be said that this change is well on its way, through an evolutionary progress analogous to that of natural selection. Darwin's Theory of Evolution has defined the idea of evolution and descendancy since the last third of the 19th century. Increasingly, this concept of 'evolution' is being applied beyond the field of biology. This Comment article discusses the progress of toxicological testing in the context of 'evolutionary pressure' and deliberates how this process can help foster the development, implementation and acceptance of mechanistic and human-relevant methods in this field. By comparing the current regulatory landscape in toxicity testing and assessment to specific elements in Charles Darwin's evolutionary theory, we aim to better understand the needs and requirements for the future.
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Affiliation(s)
- Robert Landsiedel
- 5184BASF SE, Experimental Toxicology and Ecology, Ludwigshafen am Rhein, Germany
- Free University of Berlin, Pharmacology and Toxicology, Berlin, Germany
| | - Barbara Birk
- 5184BASF SE, Experimental Toxicology and Ecology, Ludwigshafen am Rhein, Germany
| | - Dorothee Funk-Weyer
- 5184BASF SE, Experimental Toxicology and Ecology, Ludwigshafen am Rhein, Germany
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Wang D, Groot A, Seidel A, Wang L, Kiachaki E, Boogaard PJ, Rietjens IM. The influence of alkyl substitution on the in vitro metabolism and mutagenicity of benzo[a]pyrene. Chem Biol Interact 2022; 363:110007. [DOI: 10.1016/j.cbi.2022.110007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/13/2022] [Accepted: 06/01/2022] [Indexed: 11/03/2022]
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Huang HJ, Lee YH, Chou CL, Zheng CM, Chiu HW. Investigation of potential descriptors of chemical compounds on prevention of nephrotoxicity via QSAR approach. Comput Struct Biotechnol J 2022; 20:1876-1884. [PMID: 35521549 PMCID: PMC9052077 DOI: 10.1016/j.csbj.2022.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 04/02/2022] [Accepted: 04/11/2022] [Indexed: 11/15/2022] Open
Abstract
Drug-induced nephrotoxicity remains a common problem after exposure to medications and diagnostic agents, which may be heightened in the kidney microenvironment and deteriorate kidney function. In this study, the toxic effects of fourteen marked drugs with the individual chemical structure were evaluated in kidney cells. The quantitative structure-activity relationship (QSAR) approach was employed to investigate the potential structural descriptors of each drug-related to their toxic effects. The most reasonable equation of the QSAR model displayed that the estimated regression coefficients such as the number of ring assemblies, three-membered rings, and six-membered rings were strongly related to toxic effects on renal cells. Meanwhile, the chemical properties of the tested compounds including carbon atoms, bridge bonds, H-bond donors, negative atoms, and rotatable bonds were favored properties and promote the toxic effects on renal cells. Particularly, more numbers of rotatable bonds were positively correlated with strong toxic effects that displayed on the most toxic compound. The useful information discovered from our regression QSAR models may help to identify potential hazardous moiety to avoid nephrotoxicity in renal preventive medicine.
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Key Words
- AKI, acute kidney injury
- CKD, chronic kidney disease
- DIKD, drug-induced kidney disease
- ESRD, end‐stage renal disease
- GFA, genetic function approximation
- GFR, glomerular filtration rate
- Genetic algorithm
- KCSF, keratinocyte serum-free
- Nephrotoxicity
- PBS, phosphate buffered saline
- QSAR
- QSAR, quantitative structure-activity relationship
- SRB, sulforhodamine B
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Affiliation(s)
- Hung-Jin Huang
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Yu-Hsuan Lee
- Department of Cosmeceutics, China Medical University, Taichung, Taiwan
| | - Chu-Lin Chou
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taiwan
- TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Hsin Kuo Min Hospital, Taipei Medical University, Taoyuan City, Taiwan
| | - Cai-Mei Zheng
- Division of Nephrology, Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Division of Nephrology, Department of Internal Medicine, Shuang Ho Hospital, Taipei Medical University, Taiwan
- TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
| | - Hui-Wen Chiu
- TMU Research Center of Urology and Kidney, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Medical Research, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
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Wang D, Schramm V, Pool J, Pardali E, Brandenburg A, Rietjens IMCM, Boogaard PJ. The effect of alkyl substitution on the oxidative metabolism and mutagenicity of phenanthrene. Arch Toxicol 2022; 96:1109-1131. [PMID: 35182162 PMCID: PMC8921064 DOI: 10.1007/s00204-022-03239-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 01/27/2022] [Indexed: 11/28/2022]
Abstract
Alkyl-substituted PAHs may be present in certain petroleum-derived products and in the environment and may eventually end up in consumer products, such as foodstuffs, cosmetics and pharmaceuticals. Safety concerns over possible exposure to alkylated PAHs have emerged. Bioactivation is a prerequisite for the mutagenicity and carcinogenicity of PAHs and has been extensively studied for non-substituted PAHs, while data on the bioactivation of alkyl-substituted PAHs are scarce. The present study investigated the effect of alkyl substitution on the CYP 450-mediated metabolism of phenanthrene and eight of its alkylated congeners by quantifying metabolite formation in rat and human liver microsomal incubations. Furthermore, the mutagenicity of four selected methylated phenanthrenes was compared to that of phenanthrene using the Ames test. The obtained results support the hypothesis that alkyl substitution shifts the oxidative metabolism from the aromatic ring to the alkyl side chain. Increasing the length of the alkyl chain reduced overall metabolism with metabolic conversion for 1-n-dodecyl-phenanthrene (C12) being negligible. 1- and 9-methyl-phenanthrene, in which the methyl group generates an additional bay region-like structural motif, showed mutagenicity toward Salmonella typhimurium TA98 and TA 100, whereas phenanthrene and also 2- and 3-methyl-phenanthrene, without such an additional bay region-like structural motif, tested negative. It is concluded that the position of the alkylation affects the metabolism and resulting mutagenicity of phenanthrene with the mutagenicity increasing in cases where the alkyl substituent creates an additional bay region-like structural motif, in spite of the extra possibilities for side chain oxidation.
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Affiliation(s)
- Danlei Wang
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands.
| | - Viktoria Schramm
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands
| | - Jeroen Pool
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands
| | - Eleni Pardali
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands
| | - Annemarijn Brandenburg
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands
| | - Ivonne M C M Rietjens
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands
| | - Peter J Boogaard
- Division of Toxicology, Wageningen University and Research, 6708 WE, Wageningen, The Netherlands
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