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Corrigendum to “Design, synthesis, and antitumor activity of PLGA nanoparticles incorporating a discovered benzimidazole derivative as EZH2 inhibitor” [Chem.-Biol. Interact. 344 (2021) 109530] “含有发现的苯并咪唑衍生物作为EZH2抑制剂的PLGA纳米颗粒的设计、合成和抗肿瘤活性”的勘误表[Chem.-Biol]。[j].地球物理学报,2014,(5):355 - 356。
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-04-25 Epub Date: 2026-02-11 DOI: 10.1016/j.cbi.2026.111959
Hoda A. Elkot , Ibrahim Ragab , Noha M. Saleh , Mohamed N. Amin , Sara T. Al-Rashood , Shahenda M. El-Messery , Ghada S. Hassan
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引用次数: 0
Cyflumetofen induces hepatic steatosis and disrupts lipid metabolism in zebrafish larvae 氟甲氧芬诱导斑马鱼幼鱼肝脏脂肪变性并破坏脂质代谢。
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-04-25 Epub Date: 2026-02-05 DOI: 10.1016/j.cbi.2026.111957
Wei-Guo Wang , Yi-Min Duan , Da-Wei Yan , Lan Xu , Wen-Ping Xu , Li-Ming Tao , Yang Zhang , Jia-Gao Cheng
Cyflumetofen is a highly effective acaricide, and both it and its metabolites are often present in the environment as pollutants. Therefore, the safety of cyflumetofen for non-target organisms requires further attention. This study used zebrafish larvae to evaluate the effects of cyflumetofen on liver development. After 72-h exposure, cyflumetofen specifically manifested as significantly reduced liver area and histological damage (cellular vacuolization, nuclear loss) in the 2.0 and 4.0 μg/mL exposure groups. Concurrently, Oil Red O, Nile Red, and BODIPY 493/503 staining all showed that cyflumetofen induced hepatic and systemic lipid accumulation, accompanied by increased levels of TG, CH, FC, and LDL-C, and decreased HDL-C levels. qPCR analysis further revealed the molecular mechanism by which it disrupts lipid metabolism: promoting the expression of fatty acid synthesis genes (srebp-1c, fas) and inhibiting the expression of catabolism genes (cpt-1a, pparα) and lipid transport (fabp2). These integrated results demonstrate that cyflumetofen can cause abnormal liver development and induce systemic lipid metabolism disorder in zebrafish larvae.
氟甲氧芬是一种高效的杀螨剂,它及其代谢物经常作为污染物存在于环境中。因此,氟甲氧芬对非靶生物的安全性需要进一步关注。本研究以斑马鱼幼鱼为研究对象,评估氟甲氧芬对肝脏发育的影响。暴露72小时后,氟甲氧芬2.0和4.0 μg/mL暴露组的肝脏面积和组织学损伤(细胞空泡化、细胞核丢失)显著减少。同时,油红O、尼罗河红和BODIPY 493/503染色均显示氟甲氧芬诱导肝脏和全身脂质积累,同时伴有TG、CH、FC和LDL-C水平升高,HDL-C水平降低。qPCR分析进一步揭示了其破坏脂质代谢的分子机制:促进脂肪酸合成基因(srebp-1c、fas)的表达,抑制分解代谢基因(cpt-1a、pparα)和脂质转运基因(fabp2)的表达。综上所述,氟甲氧芬可导致斑马鱼幼鱼肝脏发育异常,并引起全身脂质代谢紊乱。
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引用次数: 0
Spatial and multi-omics transcriptomic dissects platinum resistance in lung adenocarcinoma: a five-gene predictive model with tumor microenvironment dynamics 空间和多组学转录组学分析肺腺癌铂耐药:肿瘤微环境动力学的五基因预测模型
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-04-25 Epub Date: 2026-02-07 DOI: 10.1016/j.cbi.2026.111952
Jie Chen , Yixin Chen , Yi Lu , Yuyu He , Feng Jiang , Lijuan Hu , Yumin Wang
The scarcity of reliable biomarkers and predictive models for platinum resistance in lung adenocarcinoma (LUAD) poses a significant clinical challenge. This study endeavors to identify molecular subtypes related to platinum resistance and construct a robust predictive model through multi-omics techniques.
We performed integrative analysis of public datasets using advanced bioinformatics strategies, including spatial transcriptome deconvolution and consensus clustering. Bulk RNA deconvolution analysis was conducted to characterize tumor microenvironment heterogeneity. Feature selection was performed using the Supervised Principal Component (SuperPC) algorithm, followed by diagnostic model construction validated through receiver operating characteristic (ROC) analysis. Functional validation was performed through cytological experiments measuring cisplatin IC50 alterations following gene manipulation in LUAD cell lines.
Consensus clustering revealed distinct LUAD subtypes, with Cluster1 demonstrating significant platinum resistance. We first subtyped the patients in the bulk transcriptome data based on consistency clustering, and then analyzed the differences between different platinum-resistant subtypes (Cluster 1 and Cluster 2), so as to screen 333 isotype-specific differentially expressed genes and 15 platinum resistance-related (PRR) genes were selected through machine learning. A refined 5-gene signature (ANKRD29/CACNA2D2/DSP/HSD17B6/SPP1) achieved exceptional predictive performance (AUC = 0.9639). Spatial transcriptomics demonstrated compartmentalized expression patterns: SPP1/DSP localized to tumor niches, HSD17B6/CACNA2D2 to epithelial regions, and ANKRD29 depletion in stromal areas. Cellular colocalization analysis revealed malignant epithelial PH proximity to myeloid and mast cells. Functional validation confirmed that ANKRD29/CACNA2D2 overexpression sensitized A549/DDP cells to cisplatin, while DSP/SPP1/HSD17B6 overexpression induced resistance. Experiments in nude mice have shown that these genes are closely related to cisplatin resistance in LUAD.
This study identifies the Cluster1 subtype and malignant epithelial PH as crucial determinants of platinum resistance in LUAD. Our innovative 5-gene predictive model exhibits clinical-grade diagnostic accuracy, and spatial transcriptomic characterization offers mechanistic insights into the dynamics of the tumor microenvironment.
肺腺癌(LUAD)铂耐药的可靠生物标志物和预测模型的缺乏给临床带来了重大挑战。本研究试图通过多组学技术鉴定与铂耐药性相关的分子亚型,并构建稳健的预测模型。我们使用先进的生物信息学策略,包括空间转录组反卷积和共识聚类,对公共数据集进行了综合分析。进行大量RNA反褶积分析以表征肿瘤微环境异质性。使用监督主成分(SuperPC)算法进行特征选择,然后通过受试者工作特征(ROC)分析验证诊断模型的构建。通过细胞学实验测量顺铂IC50在LUAD细胞系中基因操作后的改变,进行功能验证。一致聚类揭示了不同的LUAD亚型,Cluster1显示出明显的铂耐药性。我们首先基于一致性聚类对大量转录组数据中的患者进行分型,然后分析不同铂耐药亚型(Cluster 1和Cluster 2)之间的差异,从而筛选出333个同型特异性差异表达基因,并通过机器学习筛选出15个铂耐药相关(PRR)基因。精细化的5基因标记(ANKRD29/CACNA2D2/DSP/HSD17B6/SPP1)具有出色的预测性能(AUC = 0.9639)。空间转录组学显示了分区化的表达模式:SPP1/DSP定位于肿瘤小生境,HSD17B6/CACNA2D2定位于上皮区域,ANKRD29缺失于基质区域。细胞共定位分析显示恶性上皮PH接近髓细胞和肥大细胞。功能验证证实ANKRD29/CACNA2D2过表达使A549/DDP细胞对顺铂敏感,而DSP/SPP1/HSD17B6过表达诱导耐药。裸鼠实验表明,这些基因与LUAD的顺铂耐药密切相关。本研究确定Cluster1亚型和恶性上皮PH是LUAD铂耐药的关键决定因素。我们创新的5基因预测模型显示出临床级的诊断准确性,空间转录组学表征提供了对肿瘤微环境动力学的机制见解。
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引用次数: 0
Neurotoxicity and mechanism of metal and metal oxide nanoparticles 金属和金属氧化物纳米颗粒的神经毒性及其机制
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-04-01 Epub Date: 2026-02-03 DOI: 10.1016/j.cbi.2026.111953
Shouying Cao , Meng Tang , Changcun Bai
Metal and metal oxide nanoparticles, owing to their unique physicochemical properties, have been extensively applied in biomedicine, cell labeling and sorting, drug delivery, and clinical therapy. Their impact on human health and environmental safety is increasingly drawing attention. These nanoparticles can enter the nervous system through multiple pathways, triggering the release of reactive oxygen species and cytokines, leading to blood-brain barrier damage and central nervous system dysfunction. This paper includes a methods section detailing literature search strategies, screening criteria, and time windows. It explores pathways for metal and metal oxide nanoparticles to enter the nervous system and their neurotoxic effects in vivo and in vitro. The influence of developmental stage and gender differences on the neurotoxicity of metal and metal oxide nanoparticles is clearly articulated. It systematically reviews and critically compares key molecular and cellular mechanisms underlying neurotoxicity induced by different types of metal and metal oxide nanoparticles, revealing their intrinsic connections and cascading effects. It critically evaluates particle effects versus ionic effects and grades the strength of particle-specific toxicity evidence. Factors influencing the toxicity of metal and metal oxide nanoparticles, including particle size, exposure concentration, and solubility are discussed. The neurotoxic characteristics and potential unique mechanisms distinguishing these nanoparticles from other nanomaterials are clarified. Possible mechanisms of neurotoxicity and physicochemical factors influencing toxicity are summarized, exploring how physicochemical properties determine interactions with the nervous system and toxicity severity. This review concludes by identifying existing challenges and future research directions regarding the neurotoxic effects of metal and metal oxide nanoparticles, providing a reference framework for their safety assessment and neurotoxicity studies.
金属和金属氧化物纳米颗粒由于其独特的物理化学性质,在生物医学、细胞标记和分选、药物传递和临床治疗等方面得到了广泛的应用。它们对人类健康和环境安全的影响日益引起人们的关注。这些纳米颗粒可以通过多种途径进入神经系统,触发活性氧和细胞因子的释放,导致血脑屏障损伤和中枢神经系统功能障碍。本文包括方法部分,详细介绍文献检索策略、筛选标准和时间窗口。它探讨了金属和金属氧化物纳米颗粒进入神经系统的途径及其在体内和体外的神经毒性作用。发育阶段和性别差异对金属和金属氧化物纳米颗粒神经毒性的影响是明确的。它系统地回顾和批判性地比较了不同类型的金属和金属氧化物纳米颗粒诱导神经毒性的关键分子和细胞机制,揭示了它们的内在联系和级联效应。它批判性地评估粒子效应与离子效应,并对粒子特异性毒性证据的强度进行分级。讨论了影响金属和金属氧化物纳米颗粒毒性的因素,包括粒径、暴露浓度和溶解度。阐明了这些纳米颗粒的神经毒性特征和区别于其他纳米颗粒的潜在独特机制。综述了神经毒性的可能机制和影响毒性的物理化学因素,探讨了物理化学特性如何决定与神经系统的相互作用和毒性严重程度。本文总结了金属和金属氧化物纳米颗粒在神经毒性方面存在的挑战和未来的研究方向,为其安全性评估和神经毒性研究提供了参考框架。
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引用次数: 0
Cinnamic acid induces neurodevelopmental defects via PPARγ signaling in zebrafish 肉桂酸通过斑马鱼的PPARγ信号诱导神经发育缺陷。
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-03-25 Epub Date: 2026-01-16 DOI: 10.1016/j.cbi.2026.111929
Lixia Peng , Haoxu Wang , Yafang Li , Xiaoyu Liu , Kaihui Chang , Wenxin Yi , Baokun Wang , Nan Zeng , Zhiqiang Li , Chuanhong Wu
Cinnamomum cassia Presl is traditional used to warm the body, dispel cold and relieve pain in China. It is a commonly used traditional Chinese medicine and spice in daily heath care. Cinnamic acid (CA) is one of the main active compounds isolated from cinnamon bark. In the present study, we found that CA (4 mg/L and 8 mg/L) caused neurodevelopment defects in zebrafish as evidenced by shortened body length, trunk curvature, behavioral abnormalities and increased mortality. And we explored the potential targets and biological mechanisms of neurotoxicity caused by cinnamic acid using network toxicology and zebrafish experiments. 154 CA related target genes were shared with neurotoxicity-related genes. Using different algorithms in Cytoscape software, 4 key target genes were finally identified as TNF, CASP3, IL6 and PPARG, which were further confirmed with molecular docking. For the next, we confirmed these targets in zebrafish. CA up-regulated tnf-α, il-6 and caspase3 gene expressions, and down-regulated pparg gene expression. Moreover, it can inhibit the activity of AChE, ATPases, CAT and SOD, decreased neuronal fluorescence, and increased macrophages and neutrophile granulocytes, ROS and MDA. In addition, it could induce apoptosis and abnormal neurodevelopmental-related gene expression in zebrafish larvae. Oxidative stress inhibitor astaxanthin could ameliorate the behavioral impairment and the expression of neurodevelopment-related genes. Moreover, when PPAR-γ expression was increased, the behavioral impairment, inflammatory response, oxidative stress, and apoptosis levels were alleviated. All these data demonstrated that the developmental neurotoxicity of CA in zebrafish might be attributed to PPAR-γ mediated oxidative stress, inflammatory response and apoptosis.
肉桂在中国传统上被用来暖身、祛寒、止痛。是日常保健中常用的中药和香料。肉桂酸(Cinnamic acid, CA)是从肉桂树皮中分离得到的主要活性化合物之一。在本研究中,我们发现CA (4 mg/L和8 mg/L)会导致斑马鱼的神经发育缺陷,表现为体长缩短、躯干弯曲、行为异常和死亡率增加。通过网络毒理学和斑马鱼实验,探讨肉桂酸神经毒性的潜在靶点和生物学机制。154个CA相关靶基因与神经毒性相关基因共有。利用Cytoscape软件中的不同算法,最终鉴定出4个关键靶基因,分别为TNF、CASP3、IL6和PPARG,并通过分子对接进一步确认。接下来,我们在斑马鱼中确认了这些目标。CA上调tnf-α、il-6、casp3基因表达,下调pparg基因表达。抑制AChE、ATPases、CAT、SOD活性,降低神经元荧光,增加巨噬细胞、中性粒细胞、ROS、MDA。此外,它还能诱导斑马鱼幼体细胞凋亡和神经发育相关基因的异常表达。氧化应激抑制剂虾青素可以改善行为障碍和神经发育相关基因的表达。此外,当PPAR-γ表达增加时,行为障碍、炎症反应、氧化应激和细胞凋亡水平均有所减轻。这些数据表明CA对斑马鱼的发育神经毒性可能与PPAR-γ介导的氧化应激、炎症反应和细胞凋亡有关。
{"title":"Cinnamic acid induces neurodevelopmental defects via PPARγ signaling in zebrafish","authors":"Lixia Peng ,&nbsp;Haoxu Wang ,&nbsp;Yafang Li ,&nbsp;Xiaoyu Liu ,&nbsp;Kaihui Chang ,&nbsp;Wenxin Yi ,&nbsp;Baokun Wang ,&nbsp;Nan Zeng ,&nbsp;Zhiqiang Li ,&nbsp;Chuanhong Wu","doi":"10.1016/j.cbi.2026.111929","DOIUrl":"10.1016/j.cbi.2026.111929","url":null,"abstract":"<div><div><em>Cinnamomum cassia</em> Presl is traditional used to warm the body, dispel cold and relieve pain in China. It is a commonly used traditional Chinese medicine and spice in daily heath care. Cinnamic acid (CA) is one of the main active compounds isolated from cinnamon bark. In the present study, we found that CA (4 mg/L and 8 mg/L) caused neurodevelopment defects in zebrafish as evidenced by shortened body length, trunk curvature, behavioral abnormalities and increased mortality. And we explored the potential targets and biological mechanisms of neurotoxicity caused by cinnamic acid using network toxicology and zebrafish experiments. 154 CA related target genes were shared with neurotoxicity-related genes. Using different algorithms in Cytoscape software, 4 key target genes were finally identified as TNF, CASP3, IL6 and PPARG, which were further confirmed with molecular docking. For the next, we confirmed these targets in zebrafish. CA up-regulated <em>tnf-α</em>, <em>il-6</em> and <em>casp</em><em>ase</em><em>3</em> gene expressions, and down-regulated <em>pparg</em> gene expression. Moreover, it can inhibit the activity of AChE, ATPases, CAT and SOD, decreased neuronal fluorescence, and increased macrophages and neutrophile granulocytes, ROS and MDA. In addition, it could induce apoptosis and abnormal neurodevelopmental-related gene expression in zebrafish larvae. Oxidative stress inhibitor astaxanthin could ameliorate the behavioral impairment and the expression of neurodevelopment-related genes. Moreover, when PPAR-γ expression was increased, the behavioral impairment, inflammatory response, oxidative stress, and apoptosis levels were alleviated. All these data demonstrated that the developmental neurotoxicity of CA in zebrafish might be attributed to PPAR-γ mediated oxidative stress, inflammatory response and apoptosis.</div></div>","PeriodicalId":274,"journal":{"name":"Chemico-Biological Interactions","volume":"427 ","pages":"Article 111929"},"PeriodicalIF":5.4,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145999343","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
ALKBH5-mediated autophagic flux impairment is involved in bilirubin neurotoxicity alkbh5介导的自噬通量损伤与胆红素神经毒性有关
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-03-25 Epub Date: 2026-01-28 DOI: 10.1016/j.cbi.2026.111940
Jinfu Zhou , Sining Liao , Chenran Zhang , Guilin Li , Fuli Zheng , Guangxia Yu , Hong Hu , Wenya Shao , Zhenkun Guo , Siying Wu , Jianping Tang , Huangyuan Li
Bilirubin-induced brain damage represents a serious clinical consequence of hyperbilirubinemia, yet the role and underlying molecular mechanisms of autophagy the remain largely elusive. Here, we demonstrate that, for the first time, N6-methyladenosine (m6A) demethylase AlkB homolog 5 (ALKBH5) mediated dysregulated autophagic flux contributes to bilirubin-induced neurotoxicity. Hyperdifferential differentiated PC12 cells and neonatal Sprague-Dawley rats were employed as in vitro and in vivo models, respectively. In vivo experiments first showed a dysregulated autophagy and neuronal damage in hyperbilirubinemia. In vitro further experiments observed that bilirubin exposure inhibited autophagy as illustrated by the downregulated p62 and LC3-II protein expression and transmission electron microscopy results. Furthermore, we found that the autophagic flux impairment was due to the inhibition of initial stage following bilirubin exposure, which was pharmacologically validated using rapamycin and bafilomycin A1 and up-regulated protein expression of p-mTOR and BCL2. More importantly, we found that ALKBH5 overexpression can exacerbate bilirubin-induced autophagic flux damage, whereas ALKBH5 knockdown attenuated the inhibited autophagic flux damage. Mechanistically, Vacuole membrane protein 1 (VMP1), Ras-related GTP-binding protein C (RRAGC), and protein kinase AMP-activated catalytic subunit alpha 1 (PRKAA1) were identified as the target genes of ALKBH5 to impair autophagic flux with mRNA stability assay, RT-PCR analysis, and bioinfomatic analysis, thereby promoting bilirubin-induced neurotoxicity. Collectively, our findings reveal that ALKBH5 participates in bilirubin-induced autophagic flux impairment, and propose m6A-dependent autophagy as a potential therapeutic target in hyperbilirubinemia.
胆红素诱导的脑损伤是高胆红素血症的严重临床后果,然而自噬的作用和潜在的分子机制在很大程度上仍然是难以捉摸的。在这里,我们首次证明n6 -甲基腺苷(m6A)去甲基化酶AlkB同源物5 (ALKBH5)介导的失调自噬通量有助于胆红素诱导的神经毒性。采用高分化PC12细胞和新生大鼠Sprague-Dawley分别作为体外和体内模型。体内实验首次显示了高胆红素血症的自噬失调和神经元损伤。进一步的体外实验观察到胆红素暴露抑制自噬,p62和LC3-II蛋白表达下调和透射电镜结果表明。此外,我们发现自噬通量损伤是由于胆红素暴露后初始阶段的抑制,使用雷帕霉素和巴菲霉素A1以及上调p-mTOR和BCL2蛋白表达证实了这一点。更重要的是,我们发现ALKBH5过表达可加重胆红素诱导的自噬通量损伤,而ALKBH5敲低可减轻受抑制的自噬通量损伤。机制上,通过mRNA稳定性分析、RT-PCR分析和生物信息学分析,确定液泡膜蛋白1 (VMP1)、ras相关gtp结合蛋白C (RRAGC)和蛋白激酶amp活化的催化亚单位α 1 (PRKAA1)是ALKBH5损害自噬通量的靶基因,从而促进胆红素诱导的神经毒性。总之,我们的研究结果表明ALKBH5参与了胆红素诱导的自噬通量损伤,并提出m6a依赖性自噬是高胆红素血症的潜在治疗靶点。
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引用次数: 0
Resveratrol-induced alterations in selected electrokinetic properties of in vitro models: LN-18 glioma cells and PC liposomes 白藜芦醇诱导的体外模型:LN-18胶质瘤细胞和PC脂质体的选择电动特性的改变
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-03-25 Epub Date: 2026-01-20 DOI: 10.1016/j.cbi.2026.111933
Joanna Kotyńska , Agnieszka Owerczuk , Monika Naumowicz
Resveratrol (RSV) has received widespread attention due to its diverse biological activities, including antioxidant, cardioprotective, and antitumor. Numerous preclinical investigations have revealed the anticancer action of resveratrol in various tumor types, including gliomas. This polyphenol is characterized by low water solubility and a high membrane partition coefficient, suggesting a strong affinity for the lipid components of biomembranes. Consequently, biomembranes are a prime target for resveratrol. However, its interactions with membrane lipids and precise localization within the cell membrane remain unclear and subject to debate. In this study, we investigated the electrokinetic behaviour of phosphatidylcholine (PC) liposomes and LN-18 human glioblastoma cells under the influence of resveratrol. Using the electrophoretic light scattering method, we monitored changes in electrokinetic (zeta) potential and membrane surface charge of both the in vitro models as a function of pH. Furthermore, we employed the MTT assay to assess the viability of RSV-treated cells. The measurements revealed the dose-dependent effects of RSV on the analyzed parameters of both liposomes and cells. Theoretical parameters, including surface concentrations of membrane groups and association constants, were derived through quantitative analysis of adsorption equilibria to characterize the binding of solution ions to glioblastoma cell membranes. Integrating theoretical insights with experimental findings is essential for a more comprehensive interpretation of the results.
白藜芦醇(Resveratrol, RSV)因其具有抗氧化、保护心脏和抗肿瘤等多种生物活性而受到广泛关注。大量的临床前研究已经揭示了白藜芦醇在包括胶质瘤在内的各种肿瘤类型中的抗癌作用。该多酚具有低水溶性和高膜分配系数的特点,表明其对生物膜的脂质组分具有很强的亲和力。因此,生物膜是白藜芦醇的主要目标。然而,它与膜脂的相互作用和在细胞膜内的精确定位仍然不清楚,并受到争论。本研究研究了白藜芦醇作用下磷脂酰胆碱(PC)脂质体和LN-18人胶质母细胞瘤细胞的电动力学行为。利用电泳光散射法,我们监测了两种体外模型的电动力学(zeta)电位和膜表面电荷随ph值的变化。此外,我们采用MTT法评估rsv处理细胞的活力。测量结果显示RSV对脂质体和细胞分析参数的剂量依赖性作用。理论参数,包括膜基团的表面浓度和结合常数,通过定量分析吸附平衡来表征溶液离子与胶质母细胞瘤细胞膜的结合。将理论见解与实验结果相结合对于更全面地解释结果至关重要。
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引用次数: 0
Thalidezine triggers Cathepsin B-mediated cell death in T-cell lymphoma by disrupting lysosomal function 他利地嗪通过破坏溶酶体功能触发组织蛋白酶b介导的t细胞淋巴瘤细胞死亡。
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-03-25 Epub Date: 2026-01-21 DOI: 10.1016/j.cbi.2026.111932
Yingjie Qing , Su Xu , Dawei Yang , Jie Liu , Hui Cao
T-cell lymphoma (TCL) is an aggressive malignancy defined by poor prognosis and therapeutic resistance, demanding innovative strategies. Targeting the lysosome to induce cell death has emerged as a powerful anti-cancer strategy, however its potential as a therapeutic target in TCL is yet to be fully developed. Here we report that Thalidezine (Tha) is a new and highly selective lysosomotropic agent (LA) with strong activity against TCL. Thalidezine diminished the acidic pH, and more importantly, induced the lysosomal membrane permeabilization (LMP). This LMP was not a passive event; it triggered the immediate and critical release of the protease Cathepsin B (CTSB) from the lysosomal lumen. We demonstrate that this cytosolic CTSB is the key executioner, directly initiating the apoptotic cascade through caspase-3 activation. Remarkably, CTSB knockdown rescued TCL cells from Tha-induced death, confirming that the CTSB-caspase axis constitutes the major death axis. Furthermore, Tha demonstrated significant in vivo efficacy in TCL cells-bearing NOD/SCID mice. In conclusion our results reveal Tha is a novel potent drug candidate and uncover a defined mechanism by weaponizing lysosomes to release CTSB, thereby establishing a therapeutically relevant vulnerability in TCL.
t细胞淋巴瘤(TCL)是一种预后差、治疗耐药的侵袭性恶性肿瘤,需要创新的治疗策略。靶向溶酶体诱导细胞死亡已成为一种强有力的抗癌策略,但其作为TCL治疗靶点的潜力尚未得到充分开发。本文报道了Thalidezine (Tha)是一种新型的高选择性溶酶收缩剂(LA),具有很强的抗TCL活性。他利得嗪降低了酸性pH值,更重要的是诱导了溶酶体膜透性(LMP)。这次LMP不是一个被动事件;它触发了蛋白酶组织蛋白酶B (CTSB)从溶酶体腔内的立即和关键的释放。我们证明这种细胞质CTSB是关键的刽子手,通过caspase-3激活直接启动凋亡级联。值得注意的是,CTSB敲低可使TCL细胞免于tha诱导的死亡,证实CTSB-caspase轴是主要的死亡轴。此外,它在携带TCL细胞的NOD/SCID小鼠体内显示出显著的功效。总之,我们的研究结果揭示了Thalidezine是一种新的有效的候选药物,并揭示了一种明确的机制-溶酶体武器化释放ctsb作为TCL治疗相关的脆弱性。
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引用次数: 0
Sex-dependent effects of early-life paracetamol exposure on behavior and monoamines in the rat central nervous system 幼年扑热息痛暴露对大鼠中枢神经系统行为和单胺的性别依赖性影响。
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-03-25 Epub Date: 2026-01-24 DOI: 10.1016/j.cbi.2026.111937
Filip Górawski, Ilona Joniec-Maciejak, Agnieszka Piechal, Justyna Pyrzanowska, Dagmara Mirowska-Guzel, Kamilla Blecharz-Klin
The effects of prenatal and early postnatal paracetamol exposure on behavior and neurotransmission in offspring remain poorly understood. The aim of this study was to investigate the consequences of paracetamol administration during fetal and early postnatal development period in rats. A total of 43 offspring prenatally exposed to paracetamol were assigned to experimental groups based on dose (10 or 30 mg/kg b.w.) and stratified by sex.
Paracetamol was administered throughout the entire prenatal period and during the first three months of postnatal life, with treatment continuing during the behavioral assessments. These included the Novel Object Recognition test, Staircase test, Hole Board, and Morris Water Maze, which were conducted to evaluate exploratory behavior, motor function, anxiety, and memory.
Neurochemical analyses of neurotransmitters level in forebrain regions (prefrontal cortex, hippocampus, hypothalamus, striatum), hindbrain regions (cerebellum, medulla oblongata), and spinal cord were performed using high-performance liquid chromatography (HPLC).
The behavioral response to paracetamol differed between sexes. Paracetamol exposure enhanced exploration and produced a moderate anxiolytic effect, which was more pronounced in females and increased dose-dependently. Furthermore, sex-dependent impairments in spatial memory recall were observed in the Water Maze test, particularly in females exposed to paracetamol.
Biochemically, paracetamol exposure led to significant changes in dopaminergic and noradrenergic systems between the sexes, particularly in the hypothalamus (e.g., increased noradrenaline and dopamine turnover and their metabolites in males) and medulla oblongata (e.g. decreased noradrenalin turnover in males) indicating a sex-specific neurochemical response. These findings suggest that paracetamol exposure during critical developmental periods may influence cognitive function and neurotransmitter regulation in a sex-dependent manner, with female and male offspring demonstrating different neurobehavioral outcomes.
产前和产后早期扑热息痛暴露对后代行为和神经传递的影响仍然知之甚少。本研究的目的是探讨对乙酰氨基酚在大鼠胎儿和出生后早期发育期间的影响。将43只产前接触扑热息痛的子代按剂量(10或30 mg/kg b.w)和性别分层分为实验组。扑热息痛在整个产前和出生后的头三个月都被使用,在行为评估期间继续治疗。这些测试包括新物体识别测试、楼梯测试、孔板测试和莫里斯水迷宫,用于评估探索行为、运动功能、焦虑和记忆。采用高效液相色谱法(HPLC)分析前脑区(前额皮质、海马、下丘脑、纹状体)、后脑区(小脑、延髓)和脊髓的神经递质水平。对扑热息痛的行为反应因性别而异。扑热息痛暴露增强探索并产生适度的抗焦虑作用,这在女性中更为明显,且剂量依赖性增强。此外,在水迷宫测试中观察到空间记忆回忆的性别依赖性损伤,特别是在暴露于扑热息痛的女性中。生物化学方面,扑热息痛暴露导致两性间多巴胺能和去甲肾上腺素能系统的显著变化,特别是下丘脑(例如,雄性去甲肾上腺素和多巴胺的代谢增加)和延髓(例如,雄性去甲肾上腺素的代谢减少)表明了一种性别特异性的神经化学反应。这些发现表明,在发育关键期暴露扑热息痛可能会以性别依赖的方式影响认知功能和神经递质调节,雌性和雄性后代表现出不同的神经行为结果。
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引用次数: 0
Molecular actions of sepantronium bromide (YM155) on survivin-dependent cell death in cancer and beyond 分离溴化铵(YM155)在肿瘤及其他生存素依赖性细胞死亡中的分子作用。
IF 5.4 2区 医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY Pub Date : 2026-03-25 Epub Date: 2026-01-29 DOI: 10.1016/j.cbi.2026.111951
Steffanni S.A. Marques , Mateus E.T. Oliveira , Édipo G. França-Lara , Caroline K. Menuzzi , Adrielle S. Oliveira , Melissa A. Santos , Luciana F.C.M. Zischler , Andrea N. Moreno-Amaral , Selene Elifio-Esposito
Sepantronium bromide (YM155) emerged as one of the earliest small molecules designed to selectively suppress survivin (BIRC5), a key regulator of apoptosis and cell-cycle progression in cancer. Over the past two decades, YM155 has provided a unique translational framework to investigate the molecular crosstalk between survivin, cellular stress responses, and therapy resistance that shape cell-death outcomes. This mini-review integrates preclinical and clinical data to delineate how YM155 modulates transcriptional networks, mitochondrial integrity, DNA damage signaling, and autophagy. Particular attention is given to adaptive redox and metabolic programs that limit its efficacy in solid and hematological tumors. The article also revisits the outcomes of early clinical trials, highlighting both the safety profile and the challenges that hindered durable patient responses. Beyond oncology, emerging findings have repositioned YM155 as a probe to interrogate survivin-regulated processes in vascular and immune pathologies. By bridging molecular and clinical evidence, this review contextualizes YM155 within the broader landscape of targeted small molecules, emphasizing its value as a model for developing next-generation survivin modulators and precision-based therapeutic strategies.
sempantronium bromide (YM155)是最早被设计用于选择性抑制survivin (BIRC5)的小分子之一,BIRC5是癌症细胞凋亡和细胞周期进展的关键调节因子。在过去的二十年中,YM155提供了一个独特的翻译框架来研究形成细胞死亡结果的survivin、细胞应激反应和治疗耐药性之间的分子串扰。这篇小型综述整合了临床前和临床数据,描述了YM155如何调节转录网络、线粒体完整性、DNA损伤信号传导和自噬。特别注意的是适应性氧化还原和代谢程序,限制其在实体和血液肿瘤的疗效。文章还回顾了早期临床试验的结果,强调了安全性和阻碍持久患者反应的挑战。在肿瘤学之外,新发现已将YM155重新定位为探究血管和免疫病理中生存素调节过程的探针。通过连接分子和临床证据,本综述将YM155置于更广泛的靶向小分子背景下,强调其作为开发下一代生存素调节剂和精确治疗策略的模型的价值。
{"title":"Molecular actions of sepantronium bromide (YM155) on survivin-dependent cell death in cancer and beyond","authors":"Steffanni S.A. Marques ,&nbsp;Mateus E.T. Oliveira ,&nbsp;Édipo G. França-Lara ,&nbsp;Caroline K. Menuzzi ,&nbsp;Adrielle S. Oliveira ,&nbsp;Melissa A. Santos ,&nbsp;Luciana F.C.M. Zischler ,&nbsp;Andrea N. Moreno-Amaral ,&nbsp;Selene Elifio-Esposito","doi":"10.1016/j.cbi.2026.111951","DOIUrl":"10.1016/j.cbi.2026.111951","url":null,"abstract":"<div><div>Sepantronium bromide (YM155) emerged as one of the earliest small molecules designed to selectively suppress survivin (BIRC5), a key regulator of apoptosis and cell-cycle progression in cancer. Over the past two decades, YM155 has provided a unique translational framework to investigate the molecular crosstalk between survivin, cellular stress responses, and therapy resistance that shape cell-death outcomes. This mini-review integrates preclinical and clinical data to delineate how YM155 modulates transcriptional networks, mitochondrial integrity, DNA damage signaling, and autophagy. Particular attention is given to adaptive redox and metabolic programs that limit its efficacy in solid and hematological tumors. The article also revisits the outcomes of early clinical trials, highlighting both the safety profile and the challenges that hindered durable patient responses. Beyond oncology, emerging findings have repositioned YM155 as a probe to interrogate survivin-regulated processes in vascular and immune pathologies. By bridging molecular and clinical evidence, this review contextualizes YM155 within the broader landscape of targeted small molecules, emphasizing its value as a model for developing next-generation survivin modulators and precision-based therapeutic strategies.</div></div>","PeriodicalId":274,"journal":{"name":"Chemico-Biological Interactions","volume":"427 ","pages":"Article 111951"},"PeriodicalIF":5.4,"publicationDate":"2026-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146095134","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}
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Chemico-Biological Interactions
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