Archives of Toxicology最新文献

筛选
英文 中文
In vivo pharmacokinetic, pharmacodynamic and brain concentration comparison of fentanyl and para-fluorofentanyl in rats. 芬太尼和对氟芬太尼在大鼠体内的药代动力学、药效学和脑浓度比较。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-17 DOI: 10.1007/s00204-024-03887-z
Jeremy R Canfield, Jon E Sprague
{"title":"In vivo pharmacokinetic, pharmacodynamic and brain concentration comparison of fentanyl and para-fluorofentanyl in rats.","authors":"Jeremy R Canfield, Jon E Sprague","doi":"10.1007/s00204-024-03887-z","DOIUrl":"https://doi.org/10.1007/s00204-024-03887-z","url":null,"abstract":"<p><p>In 2022, para-fluorofentanyl (pFF) rose to the 6th most reported drug and the most reported fentanyl analog in the United States according to the Drug Enforcement Administration (DEA). pFF differs from fentanyl by the addition of a single fluorine group. To date, pFF has not been extensively evaluated in vivo and is frequently seen in combination with fentanyl. In the present study, the pharmacodynamic (PD) and pharmacokinetic (PK) properties and brain region-specific concentrations of pFF were evaluated in male Sprague-Dawley rats and compared to fentanyl. A 300 μg/kg subcutaneous dose of fentanyl or pFF was administered to assess PD and PK parameters as well as brain region concentrations. PD parameters were evaluated via a tail flick test to evaluate analgesia and core body temperature to measure hypothermia, a surrogate marker of overall opioid toxicity. Fentanyl and pFF were found to be equally active at the tested dose in terms of tail flick response with both compounds producing an analgesic response that lasted up to 240 min post-drug treatment. pFF induced a significantly greater hypothermic effect compared to fentanyl with a maximum temperature decrease of -5.6 ℃. Plasma PK parameters (T<sub>1/2</sub>, AUC, etc.) did not differ between fentanyl and pFF. However, pFF concentrations in the medulla, hippocampus, frontal cortex and striatum were more than two times the fentanyl concentrations. The increase in brain concentrations and greater hypothermic effect suggests that pFF is potentially more dangerous than fentanyl.</p>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thiopurine S‑methyltransferase- and indolethylamine N‑methyltransferase-mediated formation of methylated tellurium compounds from tellurite. 硫代嘌呤 S-甲基转移酶和吲哚乙胺 N-甲基转移酶介导的亚碲酸盐甲基化碲化合物的形成。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-17 DOI: 10.1007/s00204-024-03890-4
Yu-Ki Tanaka, Ayuka Takata, Karin Takahashi, Yoshikazu Yamagishi, Yasunori Fukumoto, Noriyuki Suzuki, Yasumitsu Ogra
{"title":"Thiopurine S‑methyltransferase- and indolethylamine N‑methyltransferase-mediated formation of methylated tellurium compounds from tellurite.","authors":"Yu-Ki Tanaka, Ayuka Takata, Karin Takahashi, Yoshikazu Yamagishi, Yasunori Fukumoto, Noriyuki Suzuki, Yasumitsu Ogra","doi":"10.1007/s00204-024-03890-4","DOIUrl":"https://doi.org/10.1007/s00204-024-03890-4","url":null,"abstract":"<p><p>Tellurium (Te) is a metalloid widely used in various industries. However, its toxicological impact on humans is poorly understood. In this study, we investigated the role of two methyltransferases, thiopurine S‑methyltransferase (TPMT) and indolethylamine N‑methyltransferase (INMT), in the methylation of tellurite, an inorganic Te oxyanion. The products of the reaction of Te compounds catalyzed by recombinant human TPMT and/or INMT were analyzed by liquid chromatography hyphenated to inductively coupled plasma mass spectrometry (LC-ICP-MS) and gas chromatography mass spectrometry (GC-MS). We found that TPMT catalyzes the methylation of non-methylated Te and methanetellurol to generate dimethyltelluride. On the other hand, INMT catalyzes the methylation of methanetellurol and dimethyltelluride to produce trimethyltelluronium ion, a metabolite excreted into animal urine. We conclude that TPMT and INMT are cooperatively responsible for the detoxification of Te oxyanions through methylation to form trimethyltelluronium ions.</p>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The current state of EVALI research (electronic cigarettes or vaping product use-associated lung injury) EVALI 研究现状(电子香烟或电子烟产品使用相关肺损伤)。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-16 DOI: 10.1007/s00204-024-03885-1
Hermann M. Bolt
{"title":"The current state of EVALI research (electronic cigarettes or vaping product use-associated lung injury)","authors":"Hermann M. Bolt","doi":"10.1007/s00204-024-03885-1","DOIUrl":"10.1007/s00204-024-03885-1","url":null,"abstract":"","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"98 12","pages":"3909 - 3912"},"PeriodicalIF":4.8,"publicationDate":"2024-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456825","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Innate immune regulation in inflammation resolution and liver regeneration in drug-induced liver injury. 药物性肝损伤中炎症消退和肝脏再生过程中的先天免疫调节。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-12 DOI: 10.1007/s00204-024-03886-0
Yihan Qian, Jie Zhao, Hailong Wu, Xiaoni Kong
{"title":"Innate immune regulation in inflammation resolution and liver regeneration in drug-induced liver injury.","authors":"Yihan Qian, Jie Zhao, Hailong Wu, Xiaoni Kong","doi":"10.1007/s00204-024-03886-0","DOIUrl":"https://doi.org/10.1007/s00204-024-03886-0","url":null,"abstract":"<p><p>Drug-induced liver injury (DILI) is an acute liver injury that poses a significant threat to human health. In severe cases, it can progress into chronic DILI or even lead to liver failure. DILI is typically caused by either intrinsic hepatotoxicity or idiosyncratic metabolic or immune responses. In addition to the direct damage drugs inflict on hepatocytes, the immune responses and liver inflammation triggered by hepatocyte death can further exacerbate DILI. Initially, we briefly discussed the differences in immune cell activation based on the type of liver cell death (hepatocytes, cholangiocytes, and LSECs). We then focused on the role of various immune cells (including macrophages, monocytes, neutrophils, dendritic cells, liver sinusoidal endothelial cells, eosinophils, natural killer cells, and natural killer T cells) in both the liver injury and liver regeneration stages of DILI. This article primarily reviews the role of innate immune regulation mediated by these immune cells in resolving inflammation and promoting liver regeneration during DILI, as well as therapeutic approaches targeting these immune cells for the treatment of DILI. Finally, we discussed the activation and function of liver progenitor cells (LPCs) during APAP-induced massive hepatic necrosis and the involvement of chronic inflammation in DILI.</p>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142456823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trends in research on advanced glycation end products (AGEs) 高级糖化终产物(AGEs)的研究趋势
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-10 DOI: 10.1007/s00204-024-03883-3
Hermann M. Bolt, Jan G. Hengstler
{"title":"Trends in research on advanced glycation end products (AGEs)","authors":"Hermann M. Bolt,&nbsp;Jan G. Hengstler","doi":"10.1007/s00204-024-03883-3","DOIUrl":"10.1007/s00204-024-03883-3","url":null,"abstract":"","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"98 11","pages":"3515 - 3517"},"PeriodicalIF":4.8,"publicationDate":"2024-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mechanistic insight of neurodegeneration due to micro/nano-plastic-induced gut dysbiosis. 微/纳米塑料诱导的肠道菌群失调导致神经退行性变的机制研究。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-06 DOI: 10.1007/s00204-024-03875-3
Arya Ghosh, Bapi Gorain
{"title":"Mechanistic insight of neurodegeneration due to micro/nano-plastic-induced gut dysbiosis.","authors":"Arya Ghosh, Bapi Gorain","doi":"10.1007/s00204-024-03875-3","DOIUrl":"https://doi.org/10.1007/s00204-024-03875-3","url":null,"abstract":"<p><p>Despite offering significant conveniences, plastic materials contribute substantially in developing environmental hazards and pollutants. Plastic trash that has not been adequately managed may eventually break down into fragments caused by human or ecological factors. Arguably, the crucial element for determining the biological toxicities of plastics are micro/nano-forms of plastics (MPs/NPs), which infiltrate the mammalian tissue through different media and routes. Infiltration of MPs/NPs across the intestinal barrier leads to microbial architectural dysfunction, which further modulates the population of gastrointestinal microbes. Thereby, it triggers inflammatory mediators (e.g., IL-1α/β, TNF-α, and IFN-γ) by activating specific receptors located in the gut barrier. Mounting evidence indicates that MPs/NPs disrupt host pathophysiological function through modification of junctional proteins and effector cells. Moreover, the alteration of microbial diversity by MPs/NPs causes the breakdown of the blood-brain barrier and translocation of metabolites (e.g., SCFAs, LPS) through the vagus nerve. Potent penetration affects the neuronal networks, neuronal protein accumulation, acceleration of oxidative stress, and alteration of neurofibrillary tangles, and hinders distinctive communicating pathways. Conclusively, alterations of these neurotoxic factors are possibly responsible for the associated neurodegenerative disorders due to the exposure of MPs/NPs. In this review, the hypothesis on MPs/NPs associated with gut microbial dysbiosis has been interlinked to the distinct neurological impairment through the gut-brain axis.</p>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142379990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arylacetamide deacetylase regulates hepatic iron homeostasis to protect against carbon tetrachloride-induced ferroptosis 芳基乙酰胺去乙酰化酶调节肝脏铁稳态,防止四氯化碳诱导的铁变态反应。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-05 DOI: 10.1007/s00204-024-03873-5
Soshi Shinohara, Seijo Uchijima, Keiya Hirosawa, Mai Nagaoka, Masataka Nakano, Miki Nakajima, Tatsuki Fukami
{"title":"Arylacetamide deacetylase regulates hepatic iron homeostasis to protect against carbon tetrachloride-induced ferroptosis","authors":"Soshi Shinohara,&nbsp;Seijo Uchijima,&nbsp;Keiya Hirosawa,&nbsp;Mai Nagaoka,&nbsp;Masataka Nakano,&nbsp;Miki Nakajima,&nbsp;Tatsuki Fukami","doi":"10.1007/s00204-024-03873-5","DOIUrl":"10.1007/s00204-024-03873-5","url":null,"abstract":"<div><p>Arylacetamide deacetylase (AADAC) catalyzes the hydrolysis of small molecules containing ester and amide bonds. Recently, it has been reported that AADAC can suppress reactive oxygen species production in cancer cells. This study aimed to elucidate the possibility that AADAC protects against drug-induced liver injury accompanied by oxidative stress and to explore its molecular mechanisms. Intraperitoneal administration of carbon tetrachloride induced significantly more severe liver injury in <i>Aadac</i> knockout (KO) mice (plasma alanine aminotransferase level: 19,381 ± 10,578 U/L) than in wild-type (WT) mice (7219 ± 4729 U/L). More severe liver injury in <i>Aadac</i> KO mice was accompanied by higher hepatic malondialdehyde and antioxidant gene mRNA levels than those in WT mice. The increase in plasma alanine aminotransferase levels in <i>Aadac</i> KO mice was substantially suppressed by pretreatment with the ferroptosis inhibitors deferoxamine or ferrostatin-1, suggesting that <i>Aadac</i> deficiency increases susceptibility to ferroptosis. Immunoprecipitation followed by proteomic analysis revealed that AADAC interacts with ceruloplasmin (CP), which oxidizes ferrous iron to ferric iron. Hepatic CP activity was significantly lower in <i>Aadac</i> KO mice than that in WT mice, resulting in elevated hepatic ferrous iron levels in <i>Aadac</i> KO mice. Overexpression of human AADAC in Huh-7 cells significantly attenuated carbon tetrachloride-induced cytotoxicity by suppressing ferrous iron accumulation, suggesting that AADAC interacts with CP to suppress hepatic ferrous iron accumulation. The hepatoprotective role of Aadac in ferroptosis was also observed in mice with acetaminophen-induced liver injury. This study demonstrates a novel function of AADAC in protecting against ferroptosis induced by hepatotoxicants, carbon tetrachloride and acetaminophen.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"98 12","pages":"4059 - 4075"},"PeriodicalIF":4.8,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142379047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Animal-free safety assessment of chemicals: an innovation system perspective. 不使用动物的化学品安全评估:创新体系视角。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-04 DOI: 10.1007/s00204-024-03878-0
Marjolein J Hoogstraaten, Jelle Vriend, Victoria C de Leeuw, Simona O Negro, Ellen H M Moors, Anne S Kienhuis, Jarno Hoekman
{"title":"Animal-free safety assessment of chemicals: an innovation system perspective.","authors":"Marjolein J Hoogstraaten, Jelle Vriend, Victoria C de Leeuw, Simona O Negro, Ellen H M Moors, Anne S Kienhuis, Jarno Hoekman","doi":"10.1007/s00204-024-03878-0","DOIUrl":"https://doi.org/10.1007/s00204-024-03878-0","url":null,"abstract":"<p><p>This perspective paper, which is the result of a collaborative effort between toxicologists and scholars in innovation and transition studies, presents a heuristic framework based on innovation system literature for understanding and appraising mission achievement to animal-free chemical safety assessment using New Approach Methodologies (NAMs). While scientific and technical challenges in this area are relatively well known, the recent establishment of missions and roadmaps to accelerate the acceptance and effective use of NAMs for chemical safety assessment raises new questions about how we can grasp the systemic nature of all changes needed in this transition. This includes recognising broader societal, institutional, and regulatory shifts necessary for NAM acceptance and uptake. Our paper discusses how the innovation system approach offers insights into key processes and associated activities that include as well as transcend the technical and scientific realm, and can help to accelerate acceptance and uptake of NAMs. Based on these insights, we present a comprehensive framework that, next to scientific and technological developments, recognises the need for coordinated efforts in areas like education, training, funding, policy-making, and public engagement to promote the acceptance and uptake of NAMs. Our framework can be used to perform structural and functional analyses of the innovation system of NAMs and animal-free safety assessment and as such provides handholds to track progress and organise collective efforts of actors to make sure we are moving in the right direction.</p>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142370842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Minimum information for reporting on the TEER (trans-epithelial/endothelial electrical resistance) assay (MIRTA). 报告 TEER(跨上皮/内皮电阻)测定的最低限度信息(MIRTA)。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-04 DOI: 10.1007/s00204-024-03879-z
Monita Sharma, Erin Huber, Emma Arnesdotter, Holger P Behrsing, Adam Bettmann, David Brandwein, Samuel Constant, Rahul Date, Abhay Deshpande, Eric Fabian, Amit Gupta, Robert Gutierrez, Arno C Gutleb, Marie M Hargrove, Michael Hollings, Victoria Hutter, Annie M Jarabek, Yulia Kaluzhny, Robert Landsiedel, Lawrence Milchak, Robert A Moyer, Jessica R Murray, Kathryn Page, Manish Patel, Stephanie N Pearson, Elijah J Petersen, Emily Reinke, Nuria Roldan, Clive Roper, Jamie B Scaglione, Raja S Settivari, Andreas O Stucki, Sandra Verstraelen, Joanne L Wallace, Shaun McCullough, Amy J Clippinger
{"title":"Minimum information for reporting on the TEER (trans-epithelial/endothelial electrical resistance) assay (MIRTA).","authors":"Monita Sharma, Erin Huber, Emma Arnesdotter, Holger P Behrsing, Adam Bettmann, David Brandwein, Samuel Constant, Rahul Date, Abhay Deshpande, Eric Fabian, Amit Gupta, Robert Gutierrez, Arno C Gutleb, Marie M Hargrove, Michael Hollings, Victoria Hutter, Annie M Jarabek, Yulia Kaluzhny, Robert Landsiedel, Lawrence Milchak, Robert A Moyer, Jessica R Murray, Kathryn Page, Manish Patel, Stephanie N Pearson, Elijah J Petersen, Emily Reinke, Nuria Roldan, Clive Roper, Jamie B Scaglione, Raja S Settivari, Andreas O Stucki, Sandra Verstraelen, Joanne L Wallace, Shaun McCullough, Amy J Clippinger","doi":"10.1007/s00204-024-03879-z","DOIUrl":"https://doi.org/10.1007/s00204-024-03879-z","url":null,"abstract":"<p><p>Standard information reporting helps to ensure that assay conditions and data are consistently reported and to facilitate inter-laboratory comparisons. Here, we present recommendations on minimum information for reporting on the TEER (trans-epithelial/endothelial electrical resistance) assay (MIRTA). The TEER assay is extensively used to evaluate the health of an epithelial/endothelial cell culture model and as an indicator of the potential toxicity of a test substance. This publication is the result of an international collaboration─called the RespTox (Respiratory Toxicity) Collaborative─through which twelve laboratories shared their protocols for assessing the barrier function of respiratory epithelial cells using the TEER assay following exposure to substances. The protocols from each laboratory were reviewed to identify general steps for performing the TEER assay, interlaboratory differences between steps, the rationale for differences, whether these differences impact results or cross-laboratory comparisons between TEER measurements. While the MIRTA recommendations are focused on respiratory epithelial cell systems, these recommendations can be adapted for other cell systems that form barriers. The use of these recommendations will support data transparency and reproducibility, reduce challenges in data interpretation, enable cross-laboratory comparisons, help assess study quality, and facilitate the incorporation of the TEER assay into national and international testing guidance.</p>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":" ","pages":""},"PeriodicalIF":4.8,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142370843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Standardization and optimization of the hiPSC-based PluriLum assay for detection of embryonic and developmental toxicants 基于 hiPSC 的 PluriLum 试验的标准化和优化,用于检测胚胎和发育毒物。
IF 4.8 2区 医学
Archives of Toxicology Pub Date : 2024-10-04 DOI: 10.1007/s00204-024-03870-8
Andreas Frederik Treschow, Anne Marie Vinggaard, Maria João Valente
{"title":"Standardization and optimization of the hiPSC-based PluriLum assay for detection of embryonic and developmental toxicants","authors":"Andreas Frederik Treschow,&nbsp;Anne Marie Vinggaard,&nbsp;Maria João Valente","doi":"10.1007/s00204-024-03870-8","DOIUrl":"10.1007/s00204-024-03870-8","url":null,"abstract":"<div><p>New approach methodologies (NAMs) for predicting embryotoxicity and developmental toxicity are urgently needed for generating human relevant data, while reducing turnover time and costs, and alleviating ethical concerns related to the use of animal models. We have previously developed the PluriLum assay, a <i>NKX2.5</i>-reporter gene 3D model using human-induced pluripotent stem cells (hiPSCs) that are genetically modified to enable the assessment of adverse effects of chemicals on the early-stage embryo. Aiming at improving the predictive value of the PluriLum assay for future screening purposes, we sought to introduce standardization steps to the protocol, improving the overall robustness of the PluriLum assay, as well as a shortening of the assay protocol. First, we showed that the initial size of embryoid bodies (EBs) is crucial for a proper differentiation into cardiomyocytes and overall reproducibility of the assay. When the starting diameter of the EBs exceeds 500 µm, robust differentiation can be anticipated. In terms of reproducibility, exposure to the fungicide epoxiconazole at smaller initial diameters resulted in a larger variation of the derived data, compared to more reliable concentration–response curves obtained using spheroids with larger initial diameters. We further investigated the ideal length of the differentiation protocol, resulting in a shortening of the PluriLum assay by 24 h to 7 days. Following exposure to the teratogens all-<i>trans</i> and 13-<i>cis</i> retinoic acid, both cardiomyocyte contraction and measurement of <i>NKX2.5-</i>derived luminescence were recorded with a similar or increased sensitivity after 6 days of differentiation when compared to the original 7 days. Finally, we have introduced an efficient step for enzymatic dissociation of the EBs at assay termination. This allows for an even splitting of the individual EBs and testing of additional endpoints other than the <i>NKX2.5</i>-luciferase reporter, which was demonstrated in this work by the simultaneous assessment of ATP levels. In conclusion, we have introduced standardizations and streamlined the PluriLum assay protocol to improve its suitability as a NAM for screening of a large number of chemicals for developmental toxicity testing.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"98 12","pages":"4107 - 4116"},"PeriodicalIF":4.8,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11496362/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142370844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信