ROR

ROR
  • 文章类型: Journal Article
    视黄酸相关的孤儿受体(ROR)作为转录因子,在体内的许多生理过程中起关键作用。它们的参与延伸到赋予心脏保护作用的关键生物过程,免疫系统,神经系统,以及有助于缓解几种侵袭性癌症类型。这些保护功能归因于ROR对关键蛋白质的调节和对各种细胞过程的管理,包括自噬,线粒体自噬,炎症,氧化应激和葡萄糖代谢,强调了对调节ROR表达的药理学方法的新兴需求。因此,ROR的调节是一个快速增长的研究领域,其目的不仅在于理解这些受体,而且在于操纵它们以获得所需的生理反应。尽管存在天然ROR配体,对这些受体具有高选择性的合成激动剂的开发具有巨大的治疗潜力。此类化合物的探索和进步可以有效地针对与ROR失调相关的疾病,从而为治疗干预提供途径。在这里,我们全面检查了ROR在不同生理和病理生理条件下的多方面作用,伴随着对ROR激动剂谱的深入探索,反向激动剂和拮抗剂。
    Retinoic acid-related orphan receptors (RORs) serve as transcription factors that play a pivotal role in a myriad of physiological processes within the body. Their involvement extends to critical biological processes that confer protective effects in the heart, immune system, and nervous system, as well as contributing to the mitigation of several aggressive cancer types. These protective functions are attributed to ROR\'s regulation of key proteins and the management of various cellular processes, including autophagy, mitophagy, inflammation, oxidative stress, and glucose metabolism, highlighting the emerging need for pharmacological approaches to modulate ROR expression. Thus, the modulation of RORs is a rapidly growing area of research aimed not only at comprehending these receptors, but also at manipulating them to attain the desired physiological response. Despite the presence of natural ROR ligands, the development of synthetic agonists with high selectivity for these receptors holds substantial therapeutic potential. The exploration and advancement of such compounds can effectively target diseases associated with ROR dysregulation, thereby providing avenues for therapeutic interventions. Herein, we provide a comprehensive examination of the multifaceted role of ROR in diverse physiological and pathophysiological conditions, accompanied by an in-depth exploration of a spectrum of ROR agonists, inverse agonists, and antagonists.
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  • 文章类型: Journal Article
    背景:通过ROR1及其伴侣通过WNT5A进行的非规范WNT家族(WNT5A通路)信号传导,ROR2或Frizzled2(FZD2)与驱动肿瘤发生和治疗抵抗的过程有关。我们利用大量的尿路上皮癌(UC)肿瘤数据集来表征通过WNT5A的非规范WNT信号,ROR1、ROR2或FZD2表达。
    方法:NextGen对提交给CarisLifeSciences的4125个UC肿瘤进行DNA(592个基因或WES)/RNA(WTS)测序。WNT5A的高表达和低表达,ROR1,ROR2和FZD2被定义为≥上四分位数和<下四分位数/百万(TPM),分别。分析基因表达谱的转录特征,预测对免疫疗法的反应。在适当的情况下应用了Mann-WhitneyU和X2/Fisher精确检验,P值调整为多重比较(p<0.05)。从保险索赔数据获得真实世界总生存期(OS)。
    结果:WNT5A途径基因表达在原发与转移部位之间差异显著:WNT5A(25.2与16.8TPM),FZD2(3.2vs.4.05),ROR1(1.7vs.2.1),和ROR2(2.4与2.6)全部p<0.05。高表达和低表达亚组的比较显示TP53、FGFR3和RB1致病性突变的患病率存在差异。以及随着靶基因表达的增加,T细胞发炎的评分也增加。ROR2(HR1.31,95%CI1.15-1.50,p<0.001)和FZD2(HR1.16,95%CI1.02-1.32,p=0.024)的高基因表达与OS恶化相关。
    结论:在UC患者中观察到四种WNT5A通路成分的不同基因组和免疫景观。需要进行外部验证研究。
    BACKGROUND: Non-canonical WNT family (WNT5A pathway) signaling via WNT5A through ROR1 and its partner, ROR2, or Frizzled2 (FZD2) is linked to processes driving tumorigenesis and therapy resistance. We utilized a large dataset of urothelial carcinoma (UC) tumors to characterize non-canonical WNT signaling through WNT5A, ROR1, ROR2, or FZD2 expression.
    METHODS: NextGen Sequencing of DNA (592 genes or WES)/RNA (WTS) was performed for 4125 UC tumors submitted to Caris Life Sciences. High and low expression of WNT5A, ROR1, ROR2, and FZD2 was defined as ≥ top and RESULTS: WNT5A pathway gene expression varied significantly between primary versus metastatic sites: WNT5A (25.2 vs. 16.8 TPM), FZD2 (3.2 vs. 4.05), ROR1 (1.7 vs. 2.1), and ROR2 (2.4 vs. 2.6) p < 0.05 for all. Comparison of high- and low-expression subgroups revealed variation in the prevalence of TP53, FGFR3, and RB1 pathogenic mutations, as well as increasing T cell-inflamed scores as expression of the target gene increased. High gene expression for ROR2 (HR 1.31, 95% CI 1.15-1.50, p < 0.001) and FZD2 (HR 1.16, 95% CI 1.02-1.32, p = 0.024) was associated with worse OS.
    CONCLUSIONS: Distinct genomic and immune landscapes for the four investigated WNT5A pathway components were observed in patients with UC. External validation studies are needed.
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  • 文章类型: Journal Article
    本研究的主要目的是密切监测和识别与lenvatinib相关的不良事件(AE),用于治疗肾细胞癌的药物治疗剂,甲状腺癌,和肝细胞癌。最终目标是优化患者安全性,并为适当使用该药物提供循证指导。
    对来自FDA不良事件报告系统(FAERS)数据库的报告进行了全面收集和分析,涵盖从2015年第一季度到2023年第一季度的时期。不相称性分析,采用包括ROR在内的鲁棒算法,PRR,BCPNN,EBGM用于有效的数据挖掘,以量化与lenvatinib相关的AE相关的信号。
    在收集的报告中,总共15,193例被确定为“主要可疑(PS)”药物,导致50,508名伐替尼诱导的AE。进行了一项分析,以检查26个器官系统中lenvatinib引起的药物不良反应(ADR)的发生情况。研究结果表明,存在预期的ADR,包括腹泻,呕吐,口腔炎,肝性脑病,食欲下降,脱水,体重下降,和电解质失衡,这与药物标签中提供的信息一致。此外,在首选术语(PT)水平观察到意想不到的显著ADR,比如间质性肺病,气胸,垂体炎,未能茁壮成长,红细胞增多症,垂体功能减退,自发性气胸,肺空洞,和边缘叶脑炎.这些发现表明了目前未在药物说明书中记录的不良反应的潜在发生。
    本研究成功检测到与来伐替尼给药相关的新的和不可预见的ADR信号,从而对ADR与乐伐替尼的利用之间的复杂相关性做出了重要的见解。这项调查的结果强调了持续监测和警惕监测的最大意义,以便及时识别和有效管理不良事件。因此,在lenvatinib治疗的背景下,提高患者的整体安全性和幸福感。
    UNASSIGNED: The primary aim of this study was to closely monitor and identify adverse events (AEs) linked to lenvatinib, a pharmacotherapeutic agent employed for the management of renal cell carcinoma, thyroid cancer, and hepatocellular carcinoma. The ultimate goal was to optimize patient safety and provide evidence-based guidance for the appropriate utilization of this medication.
    UNASSIGNED: A comprehensive collection and analysis of reports from the FDA Adverse Event Reporting System (FAERS) database was conducted, encompassing the period from the first quarter of 2015 to the first quarter of 2023. Disproportionality analysis, employing robust algorithms including ROR, PRR, BCPNN, and EBGM was employed for effective data mining to quantify signals associated with lenvatinib-related AEs.
    UNASSIGNED: Among the collected reports, a total of 15,193 cases were identified where lenvatinib was the \"primary suspected (PS)\" drug, resulting in 50,508 lenvatinib-induced AEs. An analysis was conducted to examine the occurrence of lenvatinib-induced adverse drug reactions (ADRs) across 26 organ systems. The findings revealed the presence of expected ADRs, including diarrhea, vomiting, stomatitis, hepatic encephalopathy, decreased appetite, dehydration, decreased weight, and electrolyte imbalances, which were consistent with the information provided in the drug labels. Furthermore, unexpected significant ADRs were observed at the preferred terms (PT) level, such as interstitial lung disease, pneumothorax, hypophysitis, failure to thrive, polycythemia, hypopituitarism, spontaneous pneumothorax, pulmonary cavitation, and limbic encephalitis. These findings indicated the potential occurrence of adverse effects that are currently not documented in the drug instructions.
    UNASSIGNED: This study has successfully detected novel and unforeseen signals pertaining to ADRs associated with the administration of lenvatinib, thereby contributing significant insights into the intricate correlation between ADRs and the utilization of lenvatinib. The outcomes of this investigation underscore the utmost significance of continuous monitoring and vigilant surveillance in order to promptly identify and effectively manage AEs, consequently enhancing overall patient safety and well-being in the context of lenvatinib therapy.
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  • 文章类型: Journal Article
    免疫检查点抑制剂(ICIs)彻底改变了癌症疗法。然而,免疫相关不良事件(irAE)增加发病率和死亡率,从而限制治疗效用.尚未系统地描述整个肺irAE谱的真实世界发病率。本研究的目的是评估发生肺部感染的风险(肺炎,胸膜事件[即,积液和胸膜炎],气道疾病恶化[即,支气管炎和支气管扩张],和结节病)暴露于五种常用的ICIs:nivolumab,pembrolizumab,durvalumab,阿维鲁单抗,和阿妥珠单抗。
    我们对食品和药物管理局不良事件报告系统(FAERS)药物警戒数据库进行了回顾性审查。我们收集了2012年至2021年的数据来评估肺部感染的风险,并使用Open-Vigil进行了不成比例的分析。用于分析药物警戒数据的软件包,计算报告赔率比(ROR)。我们使用95%CI来评估ROR的精确度。大于1的ROR和95%CI的上限指示统计学显著性。
    2012年至2021年期间,FAERS共报告了17,273,403起事件。其中,88,099(0.5%)归因于PD-1(程序性细胞死亡蛋白1)抑制剂,21,905(0.1%)归因于PD-L1(程序性死亡配体1)抑制剂。使用感兴趣的ICI的最常见适应症是肺癌:PD-1抑制剂共2832例(46.70%),PD-L1抑制剂共1311例(70.9%)。在抗PD-1组中,2342例(38.6%)患者住院,1962例(32.4%)患者死于肺部不良事件.在PD-L1组中,744例(40.3%)患者住院,520例(28.1%)患者死于该事件.Nivolumab导致最高的统计学显著风险(ROR,10.5;95%CI,10.1-10.9)为肺炎。Avelumab患肺炎的风险较小(ROR,0.2;95%CI,0.2-0.3)。nivolumab的胸膜事件风险最高(ROR,3.6;95%CI,3.4-3.9),其次是派博利珠单抗(ROR,1.8;95%CI;1.6-2.0)(p<0.001),Durvalumab的风险最低,阿替珠单抗,和Avelumab.对于ICI相关结节病,pembrolizumab的风险最为显著(ROR,3.6;95%CI,2.8-4.7),其次是纳武单抗(ROR,2.5;95%CI,1.9-3.5)(p<0.001)。与其他药物相比,所有五种ICI的ROR在气道疾病恶化时小于1。
    使用药物警戒数据库,我们发现ICI治疗后发生多发性肺irAE的风险增加,特别是PD-1抑制剂。需要进一步的工作来研究除肺炎以外的肺irAE的发生率。
    UNASSIGNED: Immune checkpoint inhibitors (ICIs) have revolutionized cancer therapeutics. However, immune-related adverse events (irAEs) increase morbidity and mortality and thereby limit therapeutic utility. The real-world incidence of the entire spectrum of pulmonary irAEs has not been systematically described. The objective of this study is to assess the risk of developing pulmonary irAEs (pneumonitis, pleural events [i.e., effusion and pleurisy], exacerbations of airway disease [i.e., bronchitis and bronchiectasis], and sarcoidosis) with exposure to five commonly used ICIs: nivolumab, pembrolizumab, durvalumab, avelumab, and atezolizumab.
    UNASSIGNED: We conducted a retrospective review of the Food and Drug Administration Adverse Events Reporting System (FAERS) pharmacovigilance database. We collected data from 2012 to 2021 to assess the risk of pulmonary irAEs and performed a disproportionality analysis using Open-Vigil, a software package used for analysis of pharmacovigilance data, to calculate reporting odds ratios (RORs). We used 95% CIs to evaluate the precision of RORs. An ROR greater than 1 and the upper limit of the 95% CI indicated statistical significance.
    UNASSIGNED: A total of 17,273,403 events were reported in FAERS between 2012 and 2021. Of these, 88,099 (0.5%) were attributed to the PD-1 (programmed cell death protein 1) inhibitors and 21,905 (0.1%) to PD-L1 (programmed death ligand 1) inhibitors of interest. The most common indication for using the ICIs of interest was lung cancer: a total of 2832 (46.70%) for the PD-1 inhibitors and 1311 (70.9%) for the PD-L1 inhibitors. In the anti-PD-1 group, 2342 (38.6%) patients were hospitalized, and 1962 (32.4%) patients died from the lung adverse event. In the PD-L1 group, 744 (40.3%) patients were hospitalized, and 520 (28.1%) patients died from the event. Nivolumab resulted in the highest statistically significant risk (ROR, 10.5; 95% CI, 10.1-10.9) for pneumonitis. Avelumab had a lesser risk for pneumonitis (ROR, 0.2; 95% CI, 0.2-0.3). The risk for pleural events was highest with nivolumab (ROR, 3.6; 95% CI, 3.4-3.9), followed by pembrolizumab (ROR, 1.8; 95% CI; 1.6-2.0) (p < 0.001), with the lowest risks from durvalumab, atezolizumab, and avelumab. For ICI-related sarcoidosis, the risk was most significant with pembrolizumab (ROR, 3.6; 95% CI, 2.8-4.7), followed by nivolumab (ROR, 2.5; 95% CI, 1.9-3.5) (p < 0.001). The RORs for all five ICIs were less than 1 for exacerbations of airway diseases as compared with other drugs.
    UNASSIGNED: Using a pharmacovigilance database, we found an increased risk of multiple pulmonary irAEs after ICI therapy, particularly with PD-1 inhibitors. Further work is needed to investigate the incidence of pulmonary irAEs other than pneumonitis.
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  • 文章类型: Journal Article
    药物引起的瘙痒引发了抓挠的欲望,从而降低一个人的生活质量。这种现象的某些实例遵循与组胺介导途径不同的复杂作用机制,已知瘙痒的贡献者。然而,对药物与瘙痒之间关系的调查有限。在这项研究中,利用数据挖掘技术综合分析与瘙痒相关的药物的特点,使用FDA的不良事件报告系统(FAERS)数据。与瘙痒有关的报告显示了值得注意的性别差异,年龄,和体重与非瘙痒病例相比。促使瘙痒的药物的主要候选药物是眼科药物,全身抗菌药物,造影剂,皮肤病学抗真菌药,和皮肤病学制剂。主成分分析表明,第二主成分可作为区分粘膜或皮肤表面发作的指标。此外,第三主成分可作为将给药方法分类为侵入性或非侵入性的指标.此外,对这些获得的主成分进行的层次聚类分析揭示了根据瘙痒发作部位和给药方法对药物进行分类的潜力。这些发现有助于制定有针对性的预防和治疗策略,以避免临床实践中的瘙痒。
    Drug-induced pruritus triggers a desire to scratch, thereby diminishing one\'s quality of life. Certain instances of this phenomenon follow complex mechanisms of action that diverge from histamine-mediated pathways, known contributors to pruritus. However, investigations into the relationship between drugs and pruritus are limited. In this study, data mining techniques were employed to comprehensively analyze the characteristics of drugs linked to pruritus, using the FDA\'s Adverse Event Reporting System (FAERS) data. Reports linked to pruritus demonstrated noteworthy differences in gender, age, and weight when compared with non-pruritus cases. Among the leading candidates for drugs prompting pruritus were ophthalmic drugs, systemic antibacterials, contrast media, dermatological antifungals, and dermatological preparations. A principal component analysis showed that the second principal component served as an indicator for distinguishing between onsets at mucous membranes or the skin\'s surface. Additionally, the third principal component functioned as an indicator for categorizing administration methods as either invasive or noninvasive. Furthermore, a hierarchical cluster analysis conducted on these obtained principal components revealed the potential for classifying drugs based on the site of pruritus onset and the method of drug administration. These findings contribute to the development of targeted prevention and treatment strategies for avoiding pruritus in clinical practice.
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  • 文章类型: Journal Article
    Ospemifene已被授权用于治疗外阴阴道萎缩(VVA)。本研究通过数据挖掘美国食品和药物管理局不良事件报告系统(FAERS)来评估与ospemifene相关的不良事件(AE)。
    与ospemifene相关的AE的信号使用歧化分析进行测量,例如报告赔率比(ROR),比例报告比(PRR),贝叶斯置信度传播神经网络(BCPNN),和多项目伽马泊松收缩器(MGPS)算法。
    在FAERS数据库的12,692,824个报告中,有2283个事件是\'主要可疑(PS)\'AE。Ospemifene诱导的AE击中25个器官系统。有726个严重不成比例的首选项(PT)符合这四种算法。调查发现了一些预期的药物不良反应(ADR),发现了与眼睛和肾脏问题相关的大量意外不良反应,表明潜在的副作用尚未包含在处方说明中。
    我们检测到新的AE信号forospemifene,我们的研究结果与临床观察一致.这表明需要进一步的前瞻性临床试验来证实这些发现并证明它们之间的联系。我们的发现可能是未来ospemifene安全性研究的有用支持数据。
    UNASSIGNED: Ospemifene has been authorized for the treatment of vulvovaginal atrophy (VVA). This study wasto evaluate adverse events (AEs) associated with ospemifene by data mining the US Food and Drug Administration Adverse Event Reporting System (FAERS).
    UNASSIGNED: The signals of AEs linked to ospemifene were measured using disproportionality analyses, such as the reporting odds ratio (ROR), the proportional reporting ratio (PRR), the Bayesian confidence propagation neural network (BCPNN), and the multi-item gamma Poisson shrinker (MGPS) algorithms.
    UNASSIGNED: There were 2283 events of ospemifene being the \'primary suspected (PS)\' AE out of the 12,692,824 reports from the FAERS database. Ospemifene-induced AEs hit 25 organ systems. There were 726 severely disproportional preferred terms (PTs) that complied with the four algorithms. The investigation turned up a number of anticipated adverse drug reactions (ADRs), and significant unanticipated ADRs linked to eye and renal problems were found, indicating potential side effects not yet included in the prescription instructions.
    UNASSIGNED: We detected novel AEs signals for ospemifene, and the results of our investigation were compatible with clinical observations. This suggests that further prospective clinical trials are required to confirm these findings and demonstrate their link. Our findings might be useful supporting data for ospemifene safety research in the future.
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  • 文章类型: Journal Article
    这项研究的目的是监测,identify,并比较与替奈普酶和阿替普酶相关的不良事件(AE),目的探讨替奈普酶治疗急性缺血性卒中(AIS)的潜在安全性,并指导其使用以提高患者安全性。
    为了评估真实世界数据中与替奈普酶和阿替普酶相关的AE的不成比例性,四种算法(ROR,PRR,BCPNN,EBGM)被用作检测与两种药物相关的AE信号的措施。随后,Breslow-Day统计分析用于比较替奈普酶和阿替普酶之间的主要系统器官类别(SOC)和关键首选术语(PT)的ROR。
    利用从食品和药物管理局不良事件报告系统(FAERS)数据库收集的数据进行统计分析,涵盖2004Q1至2023Q1的19,514,140例病例报告。有1,004例报告替奈普酶为主要可疑(PS),并在PT水平确定了2,363个替奈普酶相关的药物不良反应(ADR)。阿替普酶的两个数据分别为10,945和25,266。分析了27个器官系统中药物引起的ADR的发生情况,分析揭示了几个预期的ADR,比如出血,与两种药物标签一致的超敏反应。值得注意的是,死亡的信号强度,\'\'心室纤颤,替奈普酶在PT水平的“心源性休克”和“肺炎吸入”明显高于阿替普酶,而与替奈普酶相比,阿替普酶在PT水平的“血管性水肿”信号强度明显更高。此外,发现了与PT水平的眼部不良反应和肺炎吸入相关的意外重大ADR,表明药物说明书中目前未提及的潜在AE。
    这项研究确定并比较了与替奈普酶和阿替普酶相关的ADR信号,尽管替奈普酶与阿替普酶一样有效,并且具有易用性和可负担性等优点,在完全认识到其安全性之前,它不能替代阿替普酶治疗AIS。此外,先前未报告的眼部不良反应和肺炎被发现,为ADR与这些溶栓药物的使用之间的关系提供有价值的见解。这些发现强调了持续监测和有效检测AE的重要性,以最终提高接受溶栓治疗的AIS患者的安全性。
    UNASSIGNED: The aim of this study is to monitor, identify, and compare the adverse events (AEs) related to tenecteplase and alteplase, with the objective of exploring the potential safety of tenecteplase for acute ischemic stroke (AIS) and guiding its use to enhance patient safety.
    UNASSIGNED: In order to evaluate the disproportionality of AEs associated with tenecteplase and alteplase in real-world data, four algorithms (ROR, PRR, BCPNN, EBGM) were utilized as measures to detect signals of AEs related to both drugs. Subsequently, Breslow-Day statistical analysis was applied to compare the RORs of the main system organ classes (SOCs) and key preferred terms (PTs) between tenecteplase and alteplase.
    UNASSIGNED: A statistical analysis was performed utilizing data gleaned from the Food and Drug Administration Adverse Event Reporting System (FAERS) database, encompassing 19,514,140 case reports from 2004Q1 to 2023Q1. There were 1,004 cases where tenecteplase was reported as the primary suspected (PS) and 2,363 tenecteplase-related adverse drug reactions (ADRs) at the PTs level were identified, the two data of alteplase were 10,945 and 25,266, respectively. The occurrence of drug-induced ADRs was analyzed across 27 organ systems, The analysis revealed several expected ADRs, such as Haemorrhage, Hypersensitivity which were consistent with the two drug-labels. It is of note that the signal strengths of \'death,\' \'ventricular fibrillation,\' \'cardiogenic shock\' and \'pneumonia aspiration\' at the PT level were markedly higher for tenecteplase than for alteplase, whereas the signal strength of \'angioedema\' at the PT level was significantly higher for alteplase in comparison to tenecteplase. Additionally, unexpected significant ADRs associated with ocular adverse reactions and pneumonia aspiration at the PT level were identified, indicating potential AEs not currently mentioned in the drug instructions.
    UNASSIGNED: This study identified and compared signals of ADRs associated with tenecteplase and alteplase, although tenecteplase is as effective as alteplase and has advantages such as ease of use and affordability, it cannot replace alteplase in the treatment of AIS until its safety profile is fully recognized. Additionally, previously unreported ocular ADRs and pneumonia were identified, providing valuable insights into the relationship between ADRs and the use of these thrombolytic drugs. These findings underscore the importance of continuous monitoring and effective detection of AEs to ultimately enhance the safety of AIS patients undergoing thrombolytic therapy.
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  • 文章类型: Journal Article
    间变性甲状腺癌(ATC)是人类中最具侵袭性的恶性肿瘤之一,其与癌症相关的死亡率相当高。由于常规疗法缺乏足够的疗效,需要新的治疗方法。通过更好地了解ATC的分子发病机制可以实现这一目标。甲状腺肿瘤发生由称为癌症干细胞(CSC)的细胞亚群引发,所述细胞亚群具有赋予诸如自我更新和转移的过程的特定标志物诸如CD133。此外,一些长链非编码RNA(lncRNA)通过介导上述过程促进肿瘤发生。
    这里,我们设计了一项探索性研究来研究lncRNAsROR和MALAT1及其相关基因在CSC干性中的作用。使用磁激活细胞分选(MACS),在SW1736和C643ATC细胞系中分离CD133-和CD133+亚群。接下来,CD133标记的表达谱,MALAT1及其相关基因(CCND1,NESTIN,MYBL2,MCL1,IQGAP1),以及ROR及其相关基因(POU5F1,SOX2,NANOG),通过qRT-PCR进行了探索。
    我们发现ROR显著上调,POU5F1,SOX2,NANOG,CD133+SW1736细胞中的CD133、MALAT1、IQGAP1和MCL1与CD133-细胞比拟。至于CD133+C643细胞,CCND1,IQGAP1,POU5F1,SOX2,NANOG,与CD133-细胞相比,NESTIN显著上调。
    这项研究表明,CD133阳性SW1736和C643细胞中的这些lncRNAs可能调节ATC的干性行为。
    UNASSIGNED: Anaplastic thyroid cancer (ATC) is one of the most aggressive malignancies in humans that accounts for a considerable rate of cancer-associated mortality. Since conventional therapies are lacking sufficient efficacy, new treatment approaches are required. This goal could be achieved through a better understanding of the molecular pathogenesis of ATC. Thyroid tumorigenesis is initiated by a subpopulation of cells known as cancer stem cells (CSCs) with specific markers such as CD133 that confers to processes such as self-renewal and metastasis. Besides, some long non-coding RNAs (lncRNAs) promote tumorigenesis by mediating the aforementioned processes.
    UNASSIGNED: Here, we designed an exploratory study to investigate the role of lncRNAs ROR and MALAT1 and their related genes in CSC stemness. Using magnetic-activated cell sorting (MACS), the CD133- and CD133+ subpopulations were separated in SW1736 and C643 ATC cell lines. Next, the expression profiles of the CD133 marker, MALAT1, and its associated genes (CCND1, NESTIN, MYBL2, MCL1, IQGAP1), as well as ROR and its related genes (POU5F1, SOX2, NANOG), were explored by qRT-PCR.
    UNASSIGNED: We found significant up-regulation of ROR, POU5F1, SOX2, NANOG, CD133, MALAT1, IQGAP1, and MCL1 in CD133+ SW1736 cells compared to CD133- cells. As for CD133+ C643 cells, CCND1, IQGAP1, POU5F1, SOX2, NANOG, and NESTIN were significantly up-regulated compared to CD133- cells.
    UNASSIGNED: This study suggests that these lncRNAs in CD133-positive SW1736 and C643 cells might regulate stemness behaviors in ATC.
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  • 文章类型: Journal Article
    本研究的目的是监测和识别与托泊替康相关的不良事件(AE),一种用于治疗实体瘤的药物,以提高患者安全和指导用药。
    为了评估现实世界数据中与托普替康相关的AE的不相称性,四种算法(ROR,PRR,BCPNN,和EBGM)被用作检测拓扑替康相关AE信号的措施。
    使用FAERS数据库中的数据进行了统计分析,涵盖2004Q1至2021Q4的9,511,161例病例报告。在这些报告中,1,896例被确定为与托泊替康有关的主要可疑(PS)AE,在首选术语(PT)水平上选择了155例托泊替康相关的药物不良反应(ADR)。在23个器官系统中分析了拓扑替康诱导的ADR的发生。分析揭示了几个预期的ADR,比如贫血,恶心,呕吐,与药物标签一致。此外,发现了与系统器官类别(SOC)水平的眼部疾病相关的意外重大ADR,表明药物说明书中目前未提及的潜在不良反应。
    这项研究发现了与托泊替康有关的药物不良反应(ADR)的新的和意外的信号,提供对ADR和拓扑替康使用之间关系的有价值的见解。研究结果强调了持续监测和监督对有效检测和管理AE的重要性,最终改善托泊替康治疗期间的患者安全。
    UNASSIGNED: The objective of this study was to monitor and identify adverse events (AEs) associated with topotecan, a medication used for the treatment of solid tumors, in order to improve patient safety and guide medication usage.
    UNASSIGNED: To assess the disproportionality of topotecan-related AEs in real-world data, four algorithms (ROR, PRR, BCPNN, and EBGM) were employed as measures to detect signals of topotecan-associated AEs.
    UNASSIGNED: A statistical analysis was conducted using data from the FAERS database, encompassing 9,511,161 case reports from 2004Q1 to 2021Q4. Among these reports, 1,896 were identified as primary suspected (PS) AEs related to topotecan, and 155 topotecan-related adverse drug reactions (ADRs) at the preferred terms (PTs) level were selected. The occurrence of topotecan-induced ADRs was analyzed across 23 organ systems. The analysis revealed several expected ADRs, such as anemia, nausea, and vomiting, which were consistent with the drug labels. Additionally, unexpected significant ADRs associated with eye disorders at the system organ class (SOC) level were identified, indicating potential adverse effects not currently mentioned in the drug instructions.
    UNASSIGNED: This study identified new and unexpected signals of adverse drug reactions (ADRs) related to topotecan, providing valuable insights into the relationship between ADRs and topotecan usage. The findings highlight the importance of ongoing monitoring and surveillance to detect and manage AEs effectively, ultimately improving patient safety during topotecan treatment.
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  • 文章类型: Journal Article
    肿瘤抑制因子p53与肝纤维化的发病机理有关。p53蛋白的HERC5介导的翻译后ISG修饰对于控制其活性至关重要。这里,我们证明HERC5和ISG15的表达高度升高,而p53下调,在小鼠纤维化肝组织和转化生长因子-β1(TGF-β1)诱导的LX2细胞中。HERC5siRNA使p53蛋白表达明显增加,但p53mRNA表达无明显变化。在TGF-β1刺激的LX-2细胞中,抑制lincRNA-ROR(ROR)下调HERC5表达并升高p53表达。此外,在TGF-β1刺激的LX-2细胞与ROR表达质粒和HERC5siRNA共转染后,p53的表达几乎没有变化.我们进一步证实miR-145是ROR的靶基因。此外,我们还显示,ROR通过mir-145/ZEB2调节HERC5介导的p53的ISG化。一起,我们认为ROR/miR-145/ZEB2可能通过调节p53蛋白的ISGylation参与肝纤维化进程。
    The tumor suppressor p53 has been implicated in the pathogenesis of liver fibrosis. HERC5-mediated posttranslational ISG modification of the p53 protein is critical for controlling its activity. Here, we demonstrated that the expression of HERC5 and ISG15 is highly elevated, whereas p53 is downregulated, in fibrotic liver tissues of mice and transforming growth factor-β1 (TGF-β1)-induced LX2 cells. HERC5 siRNA clearly increased the protein expression of p53, but the mRNA expression of p53 was not obviously changed. The inhibition of lincRNA-ROR (ROR) downregulated HERC5 expression and elevated p53 expression in TGF-β1-stimulated LX-2 cells. Furthermore, the expression of p53 was almost unchanged after TGF-β1-stimulated LX-2 cells were co-transfected with a ROR-expressing plasmid and HERC5 siRNA. We further confirmed that miR-145 is a target gene of ROR. In addition, we also showed that ROR regulates the HERC5-mediated ISGylation of p53 through mir-145/ZEB2. Together, we propose that ROR/miR-145/ZEB2 might be involved in the course of liver fibrosis by regulating ISGylation of the p53 protein.
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