Hannah Taylor Lee, Hudson C. Taylor-Blair, Dinesh Kumar Chellappan, Gabriele De Rubis, Keshav Raj Paudel, Brian G. Oliver, Kamal Dua, Stewart Yeung
{"title":"Functional crosstalk between the lung and eye: a new frontier in chronic lung diseases","authors":"Hannah Taylor Lee, Hudson C. Taylor-Blair, Dinesh Kumar Chellappan, Gabriele De Rubis, Keshav Raj Paudel, Brian G. Oliver, Kamal Dua, Stewart Yeung","doi":"10.1007/s00204-025-04136-7","DOIUrl":"10.1007/s00204-025-04136-7","url":null,"abstract":"<div><p>Respiratory diseases are among the main causes of morbidity and mortality worldwide, encompassing a wide array of illnesses. Among these diseases, including acute lung injury, chronic obstructive pulmonary disease (COPD), asthma, pulmonary fibrosis, obstructive sleep apnoea (OSA), and pathogenic infections, the immune system plays a significant role in whole-body pathophysiology. These occurrences have been recognised to affect the ocular system, bringing about the novel idea of the lung–eye axis with emerging literature highlighting the fundamental connection of exacerbation between systems. Prior literature has recognised axial activity across systems, the gut and eye, where gut microbiota has an indicated correlation with the ocular environment. In addition, crosstalk has been hypothesized in a brain–lung axis via neurological anatomy, immune mechanisms and microbial pathways. Such cascades offer foundation for the lung–eye axis, supporting the potential for a correlative relationship between the ocular and respiratory system through anatomical, mucosal and inflammatory crosstalk. Although in its infancy, the interconnection between ocular and respiratory systems has been considered in the development of chronic diseases. Amid chronic diseases, COPD, OSA and glaucoma exhibit underlying mechanisms, incorporating hypoxia, oxidative stress and vascular dysfunction, postulating dual system pathophysiology. Finally, potential biomarkers are proposed following pathophysiological mechanism exploration, with an advocation for longitudinal studies in future. The current review proposes a novel axis in the field of lung diseases and aims to provide significant insights for respiratory and ocular clinicians, in addition to translational researchers, paving a new path for understanding systemic disease and treatment modality.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 11","pages":"4295 - 4318"},"PeriodicalIF":6.9,"publicationDate":"2025-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00204-025-04136-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726955","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}
{"title":"Dermal absorption, skin retention and urinary elimination of bisphenol S in rats: in vitro, in vivo and intravenous comparative analysis","authors":"Fabrice Marquet, Matthieu Aubertin, Emmy Joubert, Claire Seiwert, Frédéric Cosnier","doi":"10.1007/s00204-025-04138-5","DOIUrl":"10.1007/s00204-025-04138-5","url":null,"abstract":"<div><p>Bisphenol S (BPS) is widely used as a substitute for bisphenol A (BPA) in industrial applications, but concerns have been raised about its dermal absorption and potential systemic toxicity. Here, we investigated the toxicokinetics of BPS following dermal and intravenous (i.v.) exposure in rats, and performed complementary in vitro dermal absorption studies. A single dose of 20 µg/cm<sup>2</sup> [<sup>14</sup>C]-BPS was applied (50 µL/cm<sup>2</sup>) in vitro and in vivo to rat skin. Maximum systemic exposure was achieved by administering 0.05, 0.5, or 5 mg/kg i.v. In vitro percutaneous absorption depended on the solvent, with the highest uptake measured in artificial sebum (~ 5000 ng/cm<sup>2</sup> over 40 h). Most absorbed BPS remained unmetabolised (78–85%), with a significant skin reservoir (25–60% of the applied dose). In vivo dermal exposure resulted in low systemic absorption (~ 10%), with BPS persisting in the skin for more than 72 h. The primary excretion route was in urine (60–70%), mainly as BPS-glucuronide. Systemic i.v. exposure confirmed rapid metabolisation, with BPS-G dominating in the plasma and urinary profiles. Applying the Triple-Pack approach, by integrating in vitro and in vivo rat data with prior human in vitro findings, human in vivo dermal absorption was estimated at 1.4% of the applied dose. The results presented highlight prolonged skin retention and slow systemic release of BPS, raising concerns about chronic low-level exposure following dermal contact. Further studies are needed to refine risk assessments, particularly to enhance toxicokinetic modelling and forward dosimetry to improve exposure prediction and regulatory decision-making.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 11","pages":"4543 - 4553"},"PeriodicalIF":6.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688726","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}
{"title":"Response to letter titled “Bats, bugs and babies—why stringent guidelines are needed for cause-and-effect interpretation in epidemiological studies” by Philip Marx-Stoelting, Tewes Tralau, Veronika Städele, Stefanie Rotter, Vera Ritz, Jörg Rahnenführer, Jan G. Hengstler","authors":"Eyal G. Frank","doi":"10.1007/s00204-025-04128-7","DOIUrl":"10.1007/s00204-025-04128-7","url":null,"abstract":"","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 9","pages":"3857 - 3858"},"PeriodicalIF":6.9,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697465","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}
{"title":"Integrated multi-omic profiling uncovers endocannabinoid system as a driver of nerve agent-induced cognitive dysfunction in guinea pigs","authors":"Qian Jin, Yuxin Lin, Yue Wei, Zhanbiao Liu, Manzhu Cao, Xuejun Chen, Liqin Li","doi":"10.1007/s00204-025-04131-y","DOIUrl":"10.1007/s00204-025-04131-y","url":null,"abstract":"<div><p>Soman, a highly lethal organophosphorus compound (OP), is notorious for its rapid induction of irreversible acetylcholinesterase binding through accelerated aging. Although subacute soman exposure has been specifically implicated in cognitive deficits, the molecular pathways driving these impairments remain poorly characterized, highlighting a significant research gap. This study aims to comprehensively elucidate the effects of soman exposure on cognitive impairment by analyzing proteome and lipidome alterations in the hippocampal tissue of guinea pigs administered a sublethal dose (11 µg/kg) of soman. A molecular network based on lipidomic and proteomics data was constructed to investigate the key molecules. The study demonstrates that subcutaneous exposure to low-dose soman for 14 consecutive days in guinea pigs impairs learning and memory. We further observed that soman exposure induces damage to both the hippocampal neurons and the mitochondrial ultrastructure in the brains of these animals. The study revealed that subacute soman exposure significantly altered the endocannabinoid system, characterized by disrupted biosynthesis and metabolism of 2-arachidonoylglycerol (2-AG), with a significant down-regulation of 2-AG lipid metabolism pathways, as well as a significant up-regulation of cannabinoid receptor 1 (CB1R) pathways. Notably, the disruption of 2-AG biosynthesis and metabolism is primarily attributed to the upregulation of the activities of three key enzymes, DAGLα, MAGL, and ABHD6. The activation of CB1R negatively feedback-regulate the cAMP/PKA pathway which further leads to dysregulation of mitochondrial homeostasis and reduced energy metabolism. Pharmacodynamic evaluations demonstrated that reversible MAGL inhibitor and ABHD6 inhibitor effectively elevate 2-AG levels in cerebral organoid models, subsequently restoring mitochondrial energy metabolism. This research expands the current understanding of soman’s systemic neurotoxicity, particularly its capacity to modulate endocannabinoid-mediated cognitive processes. Our results provide mechanistic insights into soman-induced cognitive deficits and associated health risks. Importantly, elevating 2-AG levels may serve as an effective strategy for preventing and treating soman-induced memory impairment.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 10","pages":"4081 - 4103"},"PeriodicalIF":6.9,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681910","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}
{"title":"Evaluating CYP enzyme induction by cigarette smoking: a new in vitro approach using primary human hepatocytes","authors":"Ann-Kathrin Lenich, Stephanie Ruez","doi":"10.1007/s00204-025-04135-8","DOIUrl":"10.1007/s00204-025-04135-8","url":null,"abstract":"<div><p>Cigarette smoke contains compounds that significantly affect drug interactions in clinical settings, primarily through the induction of cytochrome P450 (CYP) enzymes. Given the complexity of cigarette smoke, use of cigarette smoke extract (CSE) in in vitro systems is essential for mimicking in vivo effects and analyzing CYP enzyme induction. Regulatory authorities recommend testing drug–drug interactions; however, there is currently no in vitro model to study smoke–drug interactions. This study developed a model using primary human hepatocytes (PHH) to analyze CYP enzyme induction by CSE inspired by the ICH M12 (2024) guideline. The robustness of the model was evaluated by analyzing the effects of CSE derived from three lots of research cigarettes on three PHH donors. The parameters of CSE production were optimized for a 2.5-min cigarette burning and a cell culture medium as CSE solvent. A reliable, concentration-dependent induction of CYP1A1 and CYP1A2 by CSE across different donors and cigarettes was verified based on an enzyme activity (LC–MS/MS) and mRNA expression levels (qRT-PCR). The strongest induction was observed for CYP1A1 mRNA with at least 15-fold, and CYP1A1 enzyme activity with at least 57-fold induction, across all donors. Protein levels of induced CYP1A1 in PHH were comparable to those of non-induced CYP1A2. Therefore, the data suggest a notable role of induced CYP1A1 in liver metabolism. Additionally, CSE induced the mRNA expression levels of CYP2B6, CYP2C8, and CYP3A4. This model has the potential to provide in vitro smoke–drug interaction results prior to clinical trials and can therefore assist in clinical study planning.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 11","pages":"4513 - 4530"},"PeriodicalIF":6.9,"publicationDate":"2025-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673810","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}
Tarada Tripetchr, Marla Dubau, Sarah Hedtrich, Burkhard Kleuser
{"title":"A hair-follicle reconstructed in vitro immunocompetent skin model for prediction of the sensitizing potential of chemicals","authors":"Tarada Tripetchr, Marla Dubau, Sarah Hedtrich, Burkhard Kleuser","doi":"10.1007/s00204-025-04130-z","DOIUrl":"10.1007/s00204-025-04130-z","url":null,"abstract":"<div><p>The development of immunocompetent skin models represents a significant advancement in in vitro methods for detecting skin sensitizers, adhering to the 3R principles aimed at reducing, refining and replacing animal testing. In the present study, an advanced skin model from hair follicle-derived cells was constructed and enriched with two key immune cell types, namely Langerhans cells and T-lymphocytes, named ImmuSkin-MT. The model features a physiologically relevant epidermis and dermis, integration of monocyte-derived Langerhans cells (MoLCs) beneath the dermal layer, and co-cultivation with CD4<sup>+</sup>-T cells in the lower chamber of a transwell system. This setup closely mimics the native interplay between skin-resident immune cells and T-cells, marking a significant advancement in in vitro toxicology. When exposed to known sensitizers of varying potency, the model demonstrated a robust ability to predict the sensitizing potential of chemicals. By addressing different key events in skin sensitization, a differentiation between extreme, moderate and even weak sensitizers was achieved. The results showed that the MoLCs migrated, and upregulated CD86 expression in response to contact sensitizers. Additionally, proliferation of CD4<sup>+</sup> T-lymphocytes was increased in response to the treatment. These results highlight the potential of the ImmuSkin-MT construct to serve as a valuable tool for mechanistic studies and future regulatory applications in the assessment of skin sensitization.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 10","pages":"4131 - 4144"},"PeriodicalIF":6.9,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00204-025-04130-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144666954","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}
Anne L. Ashford, Daniela Nachmanson, John W. Wills, Jacob E. Higgins, Thomas H. Smith, Kevin C. Vavra, Farah A. Dahalan, Jonathan Howe, Joanne M. Elloway, Jesse J. Salk, Ann Doherty, Anthony M. Lynch
{"title":"Alignment between Duplex Sequencing and transgenic rodent mutation assay data in the assessment of in vivo NDMA-induced mutagenesis","authors":"Anne L. Ashford, Daniela Nachmanson, John W. Wills, Jacob E. Higgins, Thomas H. Smith, Kevin C. Vavra, Farah A. Dahalan, Jonathan Howe, Joanne M. Elloway, Jesse J. Salk, Ann Doherty, Anthony M. Lynch","doi":"10.1007/s00204-025-04121-0","DOIUrl":"10.1007/s00204-025-04121-0","url":null,"abstract":"<div><p>The nitrosamine <i>N</i>-nitrosodimethylamine (NDMA) is a mutagen and rodent carcinogen that has been identified as a process impurity in some commercially available medicines, leading to market withdrawals and new impurity control measures. Error-corrected DNA sequencing techniques, such as Duplex Sequencing (DS), have error rates low enough to revolutionise genetic toxicology testing by directly measuring in vivo mutagenesis within days of exposure. Here, DS was performed on liver samples from an OECD-compliant, Transgenic Rodent Gene Mutation Assay (TGR) conducted under GLP standards. Muta™Mouse specimens were orally dosed with NDMA using either a repeat-dose 28-day regimen (0.02–4 mg/kg(bw)/day) or single bolus doses of either 5 or 10 mg/kg(bw) administered on day 1. Dose-dependent increases in mutation frequency were detected by DS in liver, enabling a No-Observed Genotoxic Effect Level (NOGEL) of 0.07 mg/kg(bw)/day to be determined, supported by mechanistic analyses of trinucleotide mutation spectra. Benchmark dose (BMD) modelling determined similar BMD<sub>50</sub> values for both DS or TGR, demonstrating concordance across the two techniques albeit with greater precision from DS due to smaller inter-animal variation. DS offers a fundamental change in mutagenicity assessments enabling more precise point-of-departure determinations with mechanistic clarity and 3Rs advantages compared to the standard TGR approach.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 10","pages":"4227 - 4242"},"PeriodicalIF":6.9,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00204-025-04121-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144658238","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}
{"title":"Tiny molecules, big concerns: ultrashort-chain PFAS on the regulatory radar","authors":"Amy Maerten, Julen Sanz-Serrano, Lindsey Devisscher, Mathieu Vinken","doi":"10.1007/s00204-025-04126-9","DOIUrl":"10.1007/s00204-025-04126-9","url":null,"abstract":"","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 8","pages":"3449 - 3451"},"PeriodicalIF":6.9,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144635984","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}
Aline C. Vollmer, Claudia Fecher-Trost, Martin Jung, Marnie Cole, Tilman F. Arnst, Veit Flockerzi, Lea Wagmann, Markus R. Meyer
{"title":"Polyclonal antibodies towards abrin and ricin—design and potential application for mass spectrometry-based analysis of human biosamples","authors":"Aline C. Vollmer, Claudia Fecher-Trost, Martin Jung, Marnie Cole, Tilman F. Arnst, Veit Flockerzi, Lea Wagmann, Markus R. Meyer","doi":"10.1007/s00204-025-04132-x","DOIUrl":"10.1007/s00204-025-04132-x","url":null,"abstract":"<div><p>The analysis of highly toxic proteins such as abrin and ricin is challenging but comprehensive analytical methods are essential for their unambiguous identification after ingestion. This study pursued three primary aims at detecting abrin and ricin in human biosamples while ensuring that laboratory staff remain protected from direct exposure to these toxic proteins. First, two polyclonal antibodies (pAB) against specific peptides of abrin-A and ricin should be produced. Thereby, antibody epitope mapping was performed, which proved that both pAB recognize specifically their target peptide. Second, an affinity column chromatography-based assay was developed, and finally, the generated pAB should be tested using two different approaches (A and B) for their application in mass spectrometry (MS)-based bioanalytical workflows. Approach A used blood and urine samples submitted to the author’s laboratory after suspected ricin intake. Samples were prepared for nanoLC-MS analysis using affinity column chromatography, gel electrophoresis, and overnight trypsin digestion. Analysis resulted in the confirmation of ricin presence in both plasma and urine. Approach B included the enrichment of an abrin-A-peptide and ricin-peptide using affinity column chromatography directly followed by LC-Orbitrap MS with a detection limit of at least 5 ng/mL in plasma and validation according to international recommendations. Since approach B is much more time-efficient and can be applied throughout laboratories due to the less equipment required, this strategy deserves further focus, especially in a clinical setting.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 11","pages":"4399 - 4410"},"PeriodicalIF":6.9,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00204-025-04132-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144607253","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}
Gerhard Prinsloo, Olusesan Ojo, Ivonne M. C. M. Rietjens
{"title":"Environmental and internal drivers of genotoxic carcinogens accumulation in botanicals and their preparations","authors":"Gerhard Prinsloo, Olusesan Ojo, Ivonne M. C. M. Rietjens","doi":"10.1007/s00204-025-04123-y","DOIUrl":"10.1007/s00204-025-04123-y","url":null,"abstract":"<div><p>The use of botanicals and herbal products is increasing globally, especially in developed countries, but their active ingredients are often poorly defined and inconsistently regulated. Moreover, the chemical composition of plants is usually influenced by internal factors (such as genetics, phenology, and age) and external influences (such as environmental conditions). These influences can significantly alter chemical profiles, which is critical for plants used in food, cosmetics, and medicine. Growing concern over harmful compounds in these products highlights the variability in their levels. Specifically, some compounds in plants are known to have genotoxic or carcinogenic effects, and their concentrations can vary greatly depending on these factors. This paper reviews how factors like water stress, soil nutrients, geographic location, and plant development affect the presence of hazardous substances in plants. While genetic factors like chemotypes and cultivars are well-studied, less is known about how environmental and developmental conditions affect chemically uniform plants. Overall, the current work emphasizes the unpredictability of these effects and underscores the need for further research to compare the levels of hazardous compounds in plants against established human safety thresholds, to better assess exposure risks in food, cosmetic and herbal products.</p></div>","PeriodicalId":8329,"journal":{"name":"Archives of Toxicology","volume":"99 10","pages":"3917 - 3933"},"PeriodicalIF":6.9,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s00204-025-04123-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144616091","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}