Toxicological Sciences最新文献

筛选
英文 中文
Suppression of haptoglobin and loss of striatal neurons in mice chronically exposed to chlorpyrifos-contaminated drinking water. 长期暴露于毒死蜱污染的饮用水的小鼠接触珠蛋白的抑制和纹状体神经元的丢失。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag012
Emma Fikse, Faith Anderson, Soyeon Cho, Jessica Landry, Elisa Carloni, Karl Biggs, Kathleen Paul, Thomas Daley, T Y Chang, Arminja Kettenbach, Matthew C Havrda
{"title":"Suppression of haptoglobin and loss of striatal neurons in mice chronically exposed to chlorpyrifos-contaminated drinking water.","authors":"Emma Fikse, Faith Anderson, Soyeon Cho, Jessica Landry, Elisa Carloni, Karl Biggs, Kathleen Paul, Thomas Daley, T Y Chang, Arminja Kettenbach, Matthew C Havrda","doi":"10.1093/toxsci/kfag012","DOIUrl":"10.1093/toxsci/kfag012","url":null,"abstract":"<p><p>Exposure to agricultural chemicals is a risk factor for neurodegenerative diseases, including Alzheimer's disease (AD) and Parkinson's disease (PD). Chlorpyrifos (CPF) is an organophosphate insecticide widely used in agricultural and occupational settings. Epidemiological studies have associated CPF exposure with developmental impairments and an increased risk of AD and PD. Experimental characterization of the impact of chronic, systemic CPF exposure is essential for understanding how organophosphates actually influence disease risk. Multiple studies have assessed the effects of gestational exposure to CPF in preclinical models. To model exposure faced by adults, we administered CPF-contaminated drinking water to mice from 6 to 22 mo of age. This chronic exposure led to systemic effects, including reduced levels of the acute-phase protein haptoglobin (HTP) in both plasma and liver. Notably, the combination of aging and CPF exposure resulted in astrogliosis in the hippocampus and striatum, as well as neuronal loss in the striatum, primarily due to the loss of GAD65/67-immunoreactive interneurons. Having identified CPF-driven suppression of HPT in peripheral tissues, we examined HPT expression in brain tissues. We readily detected HPT expression in brain microglia. We then cultivated primary microglia and found that CPF exposure decreased HPT secretion in vitro. These findings indicate systemic and neurotoxic effects resulting from adult exposure to CPF-contaminated water.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017363/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146158615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Acute exposure to diethylhexyl phthalate (DEHP) and diisononyl phthalate (DiNP) impacts pituitary hormones and inflammatory markers, suggesting altered reproductive aging in adult female mice. 急性暴露于邻苯二甲酸二乙基己酯(DEHP)和邻苯二甲酸二异壬酯(DiNP)会影响垂体激素和炎症标志物,表明成年雌性小鼠的生殖衰老发生了改变。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag020
Yinka Ojo, Karen Weis, Mary Laws, Catheryne Chiang, Ramses Santacruz-Marquez, Francky Maemble Ntomb, Jodi Flaws, Lori Raetzman
{"title":"Acute exposure to diethylhexyl phthalate (DEHP) and diisononyl phthalate (DiNP) impacts pituitary hormones and inflammatory markers, suggesting altered reproductive aging in adult female mice.","authors":"Yinka Ojo, Karen Weis, Mary Laws, Catheryne Chiang, Ramses Santacruz-Marquez, Francky Maemble Ntomb, Jodi Flaws, Lori Raetzman","doi":"10.1093/toxsci/kfag020","DOIUrl":"10.1093/toxsci/kfag020","url":null,"abstract":"<p><p>Phthalates are ubiquitous endocrine-disrupting chemicals whose exposure is associated with accelerated reproductive aging in humans. We focused on the pituitary gland, the source of the gonadotropins: Follicle-stimulating hormone (FSH) and luteinizing hormone (LH). We hypothesized that the common phthalates di-(2-ethylhexyl) phthalate (DEHP) and diisononyl phthalate (DiNP) modulate inflammation in the pituitary and impact gonadotropin expression acutely and during aging. To test this, female CD-1 mice were orally dosed with corn oil or varying concentrations of DEHP and DiNP for 10 days. Pituitary tissues were collected immediately after dosing or 15 months post-dosing, processed, and analyzed by quantitative real-time PCR (qPCR) and immunohistochemistry. We found that acute phthalate exposure did not alter Fshb and Lhb mRNA expression compared with controls, but both DEHP and DiNP reduced FSH immunopositive cell number. Phthalate exposure also decreased Il1b, and increased Il18 and Tnf mRNA levels compared with controls, suggesting an inflammatory imbalance. At 15 months post-dosing, DiNP exposure increased Lhb and Il1b mRNA levels, but repressed Fshb and Nlrp3 mRNA levels compared with controls. Next, using dissociated cultures, we investigated the impact of phthalates and the proinflammatory stimulus lipopolysaccharide (LPS) on inflammation and gonadotropin gene expression directly at the pituitary. Both the DEHP metabolite MEHP and LPS decreased Fshb, but not Lhb mRNA relative to control. MEHP also repressed the induction of Il1b by LPS. Together, these findings suggest that acute exposure to phthalate alters mRNA expression of inflammatory markers and gonadotropins in the pituitary, which could alter the process of reproductive aging.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13383081/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146228644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Safetyome and specialized panels for over 3,000 phenotypes: a systematic and translational approach using human genetics and pharmacology. 超过3000种表型的安全组和专门小组:使用人类遗传学和药理学的系统和转化方法。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag021
Xin Liu, Yen-Wei Chen, Xiao Xu, David Smith, Fan Fan
{"title":"Safetyome and specialized panels for over 3,000 phenotypes: a systematic and translational approach using human genetics and pharmacology.","authors":"Xin Liu, Yen-Wei Chen, Xiao Xu, David Smith, Fan Fan","doi":"10.1093/toxsci/kfag021","DOIUrl":"10.1093/toxsci/kfag021","url":null,"abstract":"<p><p>Drug candidates are often evaluated for their activities against unexpected targets (off-targets), to either prospectively flag potential hazards or to provide mechanistic insights for a given phenotype. The in vitro to in vivo translatability is critical when selecting which \"phenotypically consequential\" off-targets to screen. To this end, human genetics and indication-based pharmacology offer unraveled insights. Enhanced natural language processing tools were applied to harness the power of large data obtained from 7 genetics and 2 pharmacology databases. Mapping biological roles to organ systems, we curated targets implicated in 22 organ systems of safety concerns, resulting in a safetyome composed of over ∼11,000 proteins. This is a significant expansion from our previously proposed screen, whose scope included phenotypes affecting 5 organ systems. Prioritization of the large panel using expression pattern and gene conservation across species resulted in a core panel of 500 targets. Mapping biological roles obtained from the databases to specific terms allowed us to systematically generate over 3,000 phenotype-based (specialized) panels, which can be used as gene or protein sets for issue resolution. All three components: The full safetyome, the core panel of 500 targets, and the over 3,000+ specialized panels, were systematically and orthogonally tested using independent data source, i.e., gene expression data from the Comparative Toxicogenomics Database. All panels, together with a user-friendly App, are published to aid effective safety assessment and issue resolution with strong \"translational\" focus.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13016935/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146228678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Serine hydrolase targets of a sarin surrogate anticholinesterase and oxime-mediated reactivation in rat brain. 沙林替代物的丝氨酸水解酶靶点抗胆碱酯酶和肟介导的大鼠脑再激活。
IF 4.1 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag024
Chiquita Y Price, Edward C Meek, Matthew K Ross, Janice E Chambers
{"title":"Serine hydrolase targets of a sarin surrogate anticholinesterase and oxime-mediated reactivation in rat brain.","authors":"Chiquita Y Price, Edward C Meek, Matthew K Ross, Janice E Chambers","doi":"10.1093/toxsci/kfag024","DOIUrl":"10.1093/toxsci/kfag024","url":null,"abstract":"<p><p>Although acetylcholinesterase (AChE) is the primary inhibitory target for organophosphate (OP) insecticides and chemical warfare nerve agents, research supports the concept that the wide range of systems affected by OPs are not solely dependent on the anticholinesterase activity of OPs but are attributable to the inhibition of other serine hydrolases. Oxime reactivators play an integral role in the treatment of acute OP exposure by returning function to OP-inhibited AChE. Our laboratory has synthesized and patented a platform of oxime reactivators (US Patent 9,227,937) that have provided central neuroprotection through returning function to OP-inhibited AChE in the brain and preservation of neuronal and glial structures from damage in a rat model; the current US-approved oxime, pralidoxime, does not provide central neuroprotection. Thus, returning function to other OP-inhibited serine hydrolases by these novel oximes could provide additional secondary neuroprotection. Rat brain proteins were studied using activity-based protein profiling (ABPP) for serine hydrolase targets of a highly relevant sarin surrogate, nitrophenyl isopropyl methylphosphonate (NIMP), alone or in combination with Oxime 20, our lead novel AChE reactivator. ABPP indicated that NIMP significantly inhibited 6 serine hydrolases, and of these were the well-known serine hydrolases fatty acid amide hydrolase and monoacylglycerol lipase, which are important in endocannabinoid signaling. Oxime 20 administration after NIMP treatment showed only limited remediation of the inhibition experienced by these targets. The impact of this study is the identification of secondary serine esterase targets that could be explored for esterase reactivating therapeutics for the treatment of OP poisoning.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147445351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A human airway-on-a-chip microphysiological system for modeling chlorine gas toxicity. 模拟氯气毒性的人体气道芯片微生理系统。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfaf179
Sean V Murphy, Shiny A P Rajan, Kevin Lindert, Tracey Young, Yan Jiao, Yu Zhou, Oula Khoury, Malcolm McSwain, Sivanandane Sittadjody, Zeeshan Hamid, Phillip W Clapp, Timothy S Leach, Timothy C Orr, Douglas Shankle, Emily Whitaker, Khiry Sutton, Steven E Albertson, Kristina Stumpf, Lysette Mutkus, Trang Simon, Gauri Kulkarni, Jeannie Chan, Jingyun Lee, Laura A Cox, Ge Li, Charity Campbell, Michael Olivier, Sobha Puppala, Tony E Reeves, Carl D Langefeld, Hannah C Ainsworth, Julie Ziegler, Amy Zinnia, Mohammad S Khan, Frank C Marini, Stephen J Walker, Thomas D Shupe, Alan Jacobson, Cristina M Furdui, Andrew C Bishop, Adam R Hall, Michael C Seeds, Kimberly D Reeves, Anthony Atala
{"title":"A human airway-on-a-chip microphysiological system for modeling chlorine gas toxicity.","authors":"Sean V Murphy, Shiny A P Rajan, Kevin Lindert, Tracey Young, Yan Jiao, Yu Zhou, Oula Khoury, Malcolm McSwain, Sivanandane Sittadjody, Zeeshan Hamid, Phillip W Clapp, Timothy S Leach, Timothy C Orr, Douglas Shankle, Emily Whitaker, Khiry Sutton, Steven E Albertson, Kristina Stumpf, Lysette Mutkus, Trang Simon, Gauri Kulkarni, Jeannie Chan, Jingyun Lee, Laura A Cox, Ge Li, Charity Campbell, Michael Olivier, Sobha Puppala, Tony E Reeves, Carl D Langefeld, Hannah C Ainsworth, Julie Ziegler, Amy Zinnia, Mohammad S Khan, Frank C Marini, Stephen J Walker, Thomas D Shupe, Alan Jacobson, Cristina M Furdui, Andrew C Bishop, Adam R Hall, Michael C Seeds, Kimberly D Reeves, Anthony Atala","doi":"10.1093/toxsci/kfaf179","DOIUrl":"10.1093/toxsci/kfaf179","url":null,"abstract":"<p><p>There is a critical need to understand pathophysiological mechanisms involved in injury from acute chlorine gas (Cl2) exposure. Limited information is available regarding the time course and mechanisms of injury after acute Cl2 exposure due to a lack of human clinical data and limited fidelity of pre-clinical animal models. We designed and integrated a Cl2 exposure platform to generate and deliver precise concentrations of Cl2 to a microfluidic human airway-on-a-chip microphysiological system. Chemical, biological, structural, and functional airway-on-a-chip responses to Cl2 exposure were characterized across multiple concentrations, exposure times, and post-exposure timepoints. Transcriptomics and metabolomics analyses delineated key molecular, cellular, and physiological pathways involved in the acute response to Cl2 exposure. This work represents a significant advancement towards high-throughput, human-relevant characterization of pulmonary toxicants and medical countermeasure development, addressing critical gaps in toxicology modeling while reducing reliance on animal studies.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13017778/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145821038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
ToxPoint: the case study for respiratory sensitization assessment of methyl methacrylate using new approach methodologies. ToxPoint:应用新方法方法评估甲基丙烯酸甲酯呼吸致敏性的案例研究。
IF 4.1 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag008
Frank Faulhammer, Susanne N Kolle, Karin Wiench
{"title":"ToxPoint: the case study for respiratory sensitization assessment of methyl methacrylate using new approach methodologies.","authors":"Frank Faulhammer, Susanne N Kolle, Karin Wiench","doi":"10.1093/toxsci/kfag008","DOIUrl":"10.1093/toxsci/kfag008","url":null,"abstract":"","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":4.1,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146182340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Ovarian hormone deficiency enhances wood smoke-induced immune dysfunction via transcriptomic and metabolic alterations. 卵巢激素缺乏通过转录组和代谢改变增强木材烟雾诱导的免疫功能障碍。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag023
Mijung Oh, Sydnee Yazzie, Eunju Lim, Onamma Edeh, Charlotte McVeigh, Alicia Bolt, Jennifer M Gillette, Katherine E Zychowski
{"title":"Ovarian hormone deficiency enhances wood smoke-induced immune dysfunction via transcriptomic and metabolic alterations.","authors":"Mijung Oh, Sydnee Yazzie, Eunju Lim, Onamma Edeh, Charlotte McVeigh, Alicia Bolt, Jennifer M Gillette, Katherine E Zychowski","doi":"10.1093/toxsci/kfag023","DOIUrl":"10.1093/toxsci/kfag023","url":null,"abstract":"<p><p>The increasing frequency and severity of wildfires have heightened public exposure to smoke, highlighting the importance of identifying susceptibility factors, including ovarian hormone deficiency. Here, we used single-cell RNA sequencing to profile bone marrow immune cells from ovariectomized (OVX) mice exposed to either filtered air (FA) or wood smoke (WS), followed by functional validation in macrophages from both OVX and Sham-operated mice. Single-cell analyses focused on the OVX context; interactions between surgery and exposure were confirmed at the functional level in assays that included both Sham and OVX groups. In OVX mice, WS broadly suppressed transcriptional programs involved in antigen processing, leukocyte activation, antiviral defense, and bone remodeling. This was associated with altered immune cell composition, including increased memory CD8+ T cells and decreased granulocytes and interferon-responsive populations. Bone marrow-derived macrophages (BMDMs) from WS-exposed OVX mice displayed metabolic reprogramming, characterized by the reversal of OVX-induced suppression of oxidative phosphorylation and glycolytic activity, along with reduced expression of M2-associated genes, without concurrent induction of M1-associated genes. This immune-metabolic decoupling suggests that WS exposure under ovarian hormone deficiency may imprint a lasting program in the bone marrow macrophage axis. Together, these findings show that ovarian hormone deficiency increases vulnerability to WS-induced immune disruption in the bone marrow. WS triggers macrophage reprogramming only under ovarian hormone deficiency, leading to heightened metabolic activity alongside suppression of key immune pathways, identifying a novel mechanism of immunotoxicity. These findings emphasize the need to consider hormonal status in air pollution risk assessment.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":"209 3","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13014470/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147514946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Deciphering the mechanisms of Cupferron reproductive toxicity: insights from in vitro assays, network toxicology, and molecular docking. 破译铜铁生殖毒性机制:来自体外实验、网络毒理学和分子对接的见解。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag014
Mustafa Daşman, Mohammed T Qaoud, Mahmoud Abudayyak
{"title":"Deciphering the mechanisms of Cupferron reproductive toxicity: insights from in vitro assays, network toxicology, and molecular docking.","authors":"Mustafa Daşman, Mohammed T Qaoud, Mahmoud Abudayyak","doi":"10.1093/toxsci/kfag014","DOIUrl":"10.1093/toxsci/kfag014","url":null,"abstract":"<p><p>Cupferron, widely used in industrial and analytical contexts, has been proposed as a potential nitric oxide (NO) donor; however, its effects on the male reproductive system remain unclear. We assessed toxicity in TM3 (Leydig) and TM4 (Sertoli) mouse cells. Cytotoxicity (6 to 0.0035 mg/ml) was measured by MTT/NRU; genotoxicity by comet assay; oxidative stress markers (MDA, 8-OHdG, GSH, SOD) and testosterone by ELISA; cell death and ROS by flow cytometry; and gene expression by RT-qPCR. MTT IC50 values were 0.131 mg/ml (TM3) and 0.219 mg/ml (TM4). At 0.125 mg/ml, comet assay revealed markedly increased DNA damage, ≥ 16-fold (P ≤ 0.05) in both TM3 and TM4 cells. In TM4, MDA and 8-OHdG rose ≥ 1.3-fold, while SOD activity increased in both TM3 (1.2-fold) and TM4 (1.5-fold) cells (P ≤ 0.05). Annexin V/PI analysis indicated increased necrosis without significant changes in apoptosis. Testosterone levels were unaffected at all doses. RT-qPCR showed upregulation of SOD1, HMOX1, GSTA1, GPX1 antioxidant genes in both TM3 and TM4 (P ≤ 0.05). Network toxicology highlighted NOS1, NOS3, and PTGS2 as putative targets, supported by docking indicating high affinity and substrate-like poses, implicating modulation of oxidative/inflammatory pathways. ADMETLab 3.0 predicted genotoxic, hepatotoxic, and carcinogenic risks. Overall, Cupferron induces oxidative stress, DNA damage, necrosis, and antioxidant gene activation in Leydig and Sertoli cells, supporting potential male reproductive toxicity and the need for comprehensive in vivo and mechanistic in vitro studies.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146158462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Natural variation suggests candidate genes underlying Caenorhabditis elegans susceptibility to diverse toxicants. 自然变异提示秀丽隐杆线虫对多种毒物易感性的候选基因。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag019
Timothy A Crombie, Ryan Mckeown, Samuel J Widmayer, Amanda O Shaver, Nicolas D Moya, J B Collins, Janneke Wit, Robyn E Tanny, Christian Braendle, Lewis Stevens, Lisa Van Sluijs, Matthew V Rockman, Mark G Sterken, Marie-Anne Félix, Erik C Andersen
{"title":"Natural variation suggests candidate genes underlying Caenorhabditis elegans susceptibility to diverse toxicants.","authors":"Timothy A Crombie, Ryan Mckeown, Samuel J Widmayer, Amanda O Shaver, Nicolas D Moya, J B Collins, Janneke Wit, Robyn E Tanny, Christian Braendle, Lewis Stevens, Lisa Van Sluijs, Matthew V Rockman, Mark G Sterken, Marie-Anne Félix, Erik C Andersen","doi":"10.1093/toxsci/kfag019","DOIUrl":"10.1093/toxsci/kfag019","url":null,"abstract":"<p><p>Genetic differences among individuals shape how they respond to environmental toxicants, but the identification and validation of the genes responsible for this variation is difficult, particularly in humans. Consequently, our limited knowledge of the genes that influence susceptibility constrains our ability to accurately predict the risks posed by environmental toxicants. To identify genes underlying natural differences in toxicant susceptibilities, we measured the effects of 23 environmental toxicants on larval development across 195 genetically diverse Caenorhabditis elegans strains using a high-throughput imaging platform. We then combined these response data with whole-genome sequences to perform genome-wide association mappings, identifying 40 genomic regions where genetic variants are correlated with susceptibility differences. Many of these regions are enriched for genes involved in biological processes previously linked with toxicant responses, supporting the potential contributions of these genes to natural variation in susceptibility. Using biologically informed heuristics based on genomic context and functional annotation, we prioritized genes for follow-up experimentation and identified 94 candidate susceptibility genes, offering feasible targets for experimental validation that could ultimately inform toxicant risk prediction and regulatory assessment by linking genetic variation to differences in susceptibility. Analysis of natural genetic variation among 195 wild C. elegans strains identified 94 candidate genes putatively linked to differences in susceptibility to 23 environmental toxicants. These findings can inform the discovery of conserved susceptibility genes and the development of biomarkers that improve chemical risk assessment by accounting for genetic differences among humans.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13462801/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146221048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A systematic review of nervous system effects of ethylbenzene exposure in animal models. 乙苯暴露对动物神经系统影响的系统综述。
IF 5.2 3区 医学
Toxicological Sciences Pub Date : 2026-03-02 DOI: 10.1093/toxsci/kfag016
Laura V Dishaw, Michele M Taylor, Deborah Segal, Laura M Carlson
{"title":"A systematic review of nervous system effects of ethylbenzene exposure in animal models.","authors":"Laura V Dishaw, Michele M Taylor, Deborah Segal, Laura M Carlson","doi":"10.1093/toxsci/kfag016","DOIUrl":"10.1093/toxsci/kfag016","url":null,"abstract":"<p><p>Ethylbenzene is a high-production-volume chemical. Exposure occurs in the general population, but there is potential for additional exposure in certain groups, such as workers in petrochemical industries or individuals living near contaminated areas. This paper presents a systematic review of currently available evidence in animals focused on potential nervous system-related effects of ethylbenzene exposure. A broad literature search was conducted. A total of 9,679 studies were screened for inclusion based on Populations, Exposures, Comparators, and Outcomes (PECO) criteria. Included studies were evaluated for potential concerns related to risk of bias and sensitivity, and informative studies moved forward for data extraction and evidence synthesis. Twenty-one animal toxicology studies were identified that evaluated nervous system effects, including auditory effects, neurotransmitters, neurobehavior, brain weight, and histopathology. Six studies rated medium or low confidence showed consistent concentration- and exposure duration-related effects on cochlear hair cells and hearing thresholds. The evidence for the other nervous system outcomes is inconclusive. Although some studies showed effects on neurotransmitters and neurobehavior, they were rated low confidence, and findings were inconsistent. Relative brain weight changes were observed, but the direction of the effect was inconsistent. No changes were observed in absolute brain weights, which is considered the more reliable measure for evaluating effects on brain weight. No changes in brain histopathology were reported.</p>","PeriodicalId":23178,"journal":{"name":"Toxicological Sciences","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2026-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146158498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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:604180095
Book学术官方微信
小红书