TKI, Tyrosine kinase inhibitor

TKI,酪氨酸激酶抑制剂
  • 文章类型: Journal Article
    冠状动脉疾病(CAD)是癌症幸存者心血管负担的重要原因。这篇综述确定了可以帮助指导有关筛查的益处的决策的特征,以评估亚临床CAD的风险或存在。根据危险因素和炎症负担,筛选可能适用于选定的幸存者。在接受基因检测的癌症幸存者中,多基因风险评分和克隆造血标志物可能成为未来有用的CAD风险预测工具。癌症的类型(尤其是乳腺癌,血液学,胃肠,和泌尿生殖系统)和治疗的性质(放射治疗,铂剂,氟尿嘧啶,激素治疗,酪氨酸激酶抑制剂,内皮生长因子抑制剂,和免疫检查点抑制剂)在确定风险方面也很重要。积极筛查的治疗意义包括生活方式和动脉粥样硬化干预,在特定情况下,可能需要进行血运重建。
    Coronary artery disease (CAD) is an important contributor to the cardiovascular burden in cancer survivors. This review identifies features that could help guide decisions about the benefit of screening to assess the risk or presence of subclinical CAD. Screening may be appropriate in selected survivors based on risk factors and inflammatory burden. In cancer survivors who have undergone genetic testing, polygenic risk scores and clonal hematopoiesis markers may become useful CAD risk prediction tools in the future. The type of cancer (especially breast, hematological, gastrointestinal, and genitourinary) and the nature of treatment (radiotherapy, platinum agents, fluorouracil, hormonal therapy, tyrosine kinase inhibitors, endothelial growth factor inhibitors, and immune checkpoint inhibitors) are also important in determining risk. Therapeutic implications of positive screening include lifestyle and atherosclerosis interventions, and in specific instances, revascularization may be indicated.
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  • 文章类型: Journal Article
    未经证实:转移性非小细胞肺癌中的间变性淋巴瘤激酶(ALK)易位(3%至7%)可预测对ALK抑制剂的反应(例如,阿列替尼,第一行),5年生存率为60%,中位无进展生存期为34.8个月。尽管阿来替尼的总体毒性率是可以接受的,无法解释的不良事件,包括水肿和心动过缓,可能表明潜在的心脏毒性。
    非ASSIGNED:本研究的目的是调查阿来替尼的心脏毒性和暴露毒性关系。
    UNASSIGNED:在2020年4月至2021年9月之间,纳入了53例接受阿来替尼治疗的ALK阳性非小细胞肺癌患者。在2020年4月之后开始使用alectinib的患者在开始时接受了心脏检查,在心脏肿瘤门诊患者的6个月和1年时。已经接受alectinib>6个月的患者接受1次心脏评估。心动过缓,水肿,收集阿来替尼严重毒性(导致剂量调整的≥3级和≥2级不良事件)数据.阿莱替尼稳态谷浓度用于暴露毒性分析。
    UNASSIGNED:所有接受治疗心脏评估的患者的左心室射血分数保持稳定(n=34;中位数为62%;IQR:58%-64%)。22例患者(42%)发生了阿来替尼相关的心动过缓(6例有症状的心动过缓)。一名患者因严重症状性心动过缓而接受了起搏器植入。严重毒性与阿来替尼平均Ctugh高出35%显著相关(728比539ng/mL,SD=83ng/mL;单侧P=0.015)。
    未经证实:没有患者出现左心室射血分数降低的迹象。阿莱替尼引起的心动过缓比以前报道的更多(42%),并有一些严重的症状性心动过缓。具有严重毒性的患者通常具有高于治疗阈值的升高的暴露。
    UNASSIGNED: Anaplastic lymphoma kinase (ALK) translocations in metastatic non-small cell lung cancer (3% to 7%) predict for response to ALK-inhibitors (eg, alectinib, first line), resulting in a 5-year survival rate of ∼60% and median progression-free survival of 34.8 months. Although the overall toxicity rate of alectinib is acceptable, unexplained adverse events, including edema and bradycardia, may indicate potential cardiac toxicity.
    UNASSIGNED: This study\'s aim was to investigate the cardiotoxicity profile and exposure-toxicity relationship of alectinib.
    UNASSIGNED: Between April 2020 and September 2021, 53 patients with ALK-positive non-small cell lung cancer treated with alectinib were included. Patients starting with alectinib after April 2020 underwent a cardiac work-up at start, at 6 months and at 1 year at the cardio-oncology outpatients\' clinic. Patients already receiving alectinib >6 months underwent 1 cardiac evaluation. Bradycardia, edema, and severe alectinib toxicity (grade ≥3 and grade ≥2 adverse events leading to dose modifications) data were collected. Alectinib steady-state trough concentrations were used for exposure-toxicity analyses.
    UNASSIGNED: Left ventricular ejection fraction remained stable in all patients who underwent an on-treatment cardiac evaluation (n = 34; median 62%; IQR: 58%-64%). Twenty-two patients (42%) developed alectinib-related bradycardia (6 symptomatic bradycardia). One patient underwent a pacemaker implantation for severe symptomatic bradycardia. Severe toxicity was significantly associated with a 35% higher alectinib mean Ctrough (728 vs 539 ng/mL, SD = 83 ng/mL; 1-sided P = 0.015).
    UNASSIGNED: No patients showed signs of a diminished left ventricular ejection fraction. Alectinib caused more bradycardia than previously reported (42%) with some instances of severe symptomatic bradycardia. Patients with severe toxicity generally had an elevated exposure above the therapeutic threshold.
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  • 文章类型: Journal Article
    Erb-b2受体酪氨酸激酶2(ErbB2)是一种癌基因,经常在癌症亚组中过度表达。已经开发了抗ErbB2疗法来治疗这些类型的癌症。然而,关于抗ErbB2药物如何影响ErbB2的运输和降解知之甚少。我们证明了可逆和不可逆的酪氨酸激酶抑制剂(TKIs)差异调节ErbB2的亚细胞运输和下调。只有不可逆的TKIs才能诱导ErbB2表达的丧失,不依赖于蛋白酶体或溶酶体。不可逆的TKIs促进ErbB2从质膜的内吞作用并增强ErbB2在内体的积累。ErbB2的内吞作用是由动力蛋白依赖性但不依赖于网格蛋白的机制介导的。ErbB2内吞作用的阻断可损害TKI诱导的ErbB2下调。
    Erb-b2 receptor tyrosine kinase 2 (ErbB2) is an oncogene that frequently overexpressed in a subset of cancers. Anti-ErbB2 therapies have been developed to treat these types of cancers. However, less is known about how anti-ErbB2 drugs affect the trafficking and degradation of ErbB2. We demonstrate that the reversible and irreversible tyrosine kinase inhibitors (TKIs) differentially modulate the subcellular trafficking and downregulation of ErbB2. Only the irreversible TKIs can induce the loss of ErbB2 expression, which is not dependent on proteasome or lysosome. The irreversible TKIs promote ErbB2 endocytosis from plasma membrane and enhance the ErbB2 accumulation at endosomes. The endocytosis of ErbB2 is mediated by a dynamin-dependent but clathrin-independent mechanism. Blocking of ErbB2 endocytosis can impair the TKI-induced ErbB2 downregulation.
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  • 文章类型: Journal Article
    草药产品通过与化疗共同给药广泛用于癌症患者。以前的研究表明,由于抑制药物代谢酶,草药和抗癌药物之间存在药代动力学相互作用,特别是细胞色素P450(CYPs)。这项研究的目的是确定穿心莲的抑制作用,姜黄,灵芝,乌尔丹尼亚和文提物对吉非替尼代谢的影响,拉帕替尼和索拉非尼。人肝脏微粒体CYP3A活性对吉非替尼代谢的影响,在不存在和存在泰国草药提取物的情况下,拉帕替尼和索拉非尼使用高效液相色谱分析。姜黄提取物能有效抑制CYP3A介导的拉帕替尼和索拉非尼的代谢,IC50为4.18±3.20和7.59±1.23μg/mL,分别,而吉非替尼的代谢受到莫尔丹尼和文提拉提取物的强烈抑制,IC50值分别为7.53±2.87和7.06±1.23μg/mL,分别。穿心莲和灵芝提取物对所测试的抗癌剂的代谢影响较小(IC50值>10μg/mL)。此外,姜黄提取物抑制CYP3A介导的抗癌药物代谢的能力的动力学分析最好通过非竞争性和竞争性抑制模型描述,Ki值为20.08和11.55μg/mL的吉非替尼和索拉非尼的代谢,分别。本研究表明,酪氨酸激酶抑制剂和草药提取物之间存在潜在的药代动力学相互作用。
    Herbal products are widely used in cancer patients via co-administration with chemotherapy. Previous studies have demonstrated that pharmacokinetic interactions between herbs and anticancer drugs exist due to inhibition of drug-metabolizing enzymes, particularly cytochrome P450s (CYPs). The aim of this study was to determine the inhibitory effects of Andrographis paniculata, Curcuma zedoaria, Ganoderma lucidum, Murdannia loriformis and Ventilago denticulata extracts on the metabolism of gefitinib, lapatinib and sorafenib. The activities of CYP3A in human liver microsome on the metabolism of gefitinib, lapatinib and sorafenib in the absence and presence of Thai herbal extracts were assayed using high-performance liquid chromatography analysis. Curcuma zedoaria extract potently inhibited CYP3A-mediated lapatinib and sorafenib metabolism with IC50 values of 4.18 ± 3.20 and 7.59 ± 1.23 μg/mL, respectively, while the metabolism of gefitinib was strongly inhibited by Murdannia loriformis and Ventilago denticulata extracts with IC50 values of 7.53 ± 2.87 and 7.06 ± 1.23 μg/mL, respectively. Andrographis paniculata and Ganoderma lucidum extracts had less effect on the metabolism of the tested anticancers (IC50 values >10 μg/mL). In addition, kinetic analysis of the ability of Curcuma zedoaria extract to inhibit CYP3A-mediated metabolism of anticancer drugs was best described by the noncompetitive and competitive inhibition models with Ki values of 20.08 and 11.55 μg/mL for the metabolism of gefitinib and sorafenib, respectively. The present study demonstrated that there were potential pharmacokinetic interactions between tyrosine kinase inhibitors and herbal extracts.
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  • 文章类型: Journal Article
    肝细胞癌(HCC)是全球范围内的主要公共卫生问题,其发病率和死亡率相似。指出缺乏有效的治疗选择。了解HCC管理中涉及的不同问题,从风险因素到筛查和管理,对于改善受影响个体的预后和生活质量至关重要。本文件总结了目前的知识状态和未满足的需求,所有不同的利益相关者在肝癌的护理,意味着患者,亲戚,医师,监管机构和卫生当局,以便为患者提供最佳护理。这份文件是由国际肝癌协会委托,并由资深会员进行评审,包括该协会的两位前主席。本文件根据给定地区的经济状况,提出了HCC社会管理的推荐方法。
    Hepatocellular carcinoma (HCC) is a major public health problem worldwide for which the incidence and mortality are similar, pointing to the lack of effective treatment options. Knowing the different issues involved in the management of HCC, from risk factors to screening and management, is essential to improve the prognosis and quality of life of affected individuals. This document summarises the current state of knowledge and the unmet needs for all the different stakeholders in the care of liver cancer, meaning patients, relatives, physicians, regulatory agencies and health authorities so that optimal care can be delivered to patients. The document was commissioned by the International Liver Cancer Association and was reviewed by senior members, including two ex-presidents of the Association. This document lays out the recommended approaches to the societal management of HCC based on the economic status of a given region.
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  • 文章类型: Case Reports
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  • 文章类型: Journal Article
    未经证实:第二代和第三代BCR-ABL1酪氨酸激酶抑制剂(TKIs)与费城染色体阳性(Ph+)白血病患者的心血管不良事件(CVAE)相关。
    未经证实:我们假设第二代和第三代BCR-ABL1TKIs可能通过激活含Rho相关卷曲螺旋激酶(ROCK)引起CVAE。
    UNASSIGNED:通过毛细管电泳评估了53名接受TKI的Ph+患者和15名无Ph+白血病的对照患者的外周血单核细胞的ROCK活性(中位随访时间=26个月[Q1-Q3:5-37个月])。我们还研究了TKIs和ROCK在体外对内皮功能障碍的影响,这可能会导致CVAE。
    未经证实:接受第二代和第三代TKIs的患者与接受伊马替尼的患者和对照组患者相比,ROCK活性高1.6倍。在Ph+白血病患者中,ROCK活性升高与CVAE的发生率增加相关。在体外内皮细胞中,我们发现达沙替尼和普纳替尼治疗导致肌动蛋白强度和内皮通透性的变化,这可以通过岩石的药理抑制逆转。Ponatinib导致细胞增殖减少,但这并不伴随衰老。达沙替尼和普纳替尼治疗导致内皮型一氧化氮合酶的磷抑制和一氧化氮产生减少。ROCK抑制逆转内皮通透性和内皮型一氧化氮合酶相关内皮功能障碍。伊马替尼和尼洛替尼诱导p190RhoGAP磷酸化。
    未经批准:我们的研究结果表明,在接受BCR-ABL1TKIs的患者中,ROCK活性可能是CVAE的预后指标。随着进一步的研究,ROCK抑制可能是减少与第二代和第三代BCR-ABL1TKIs相关的CVAE发生率的有希望的方法。
    UNASSIGNED: Second- and third-generation BCR-ABL1 tyrosine kinase inhibitors (TKIs) are associated with cardiovascular adverse events (CVAEs) in patients with Philadelphia chromosome-positive (Ph+) leukemia.
    UNASSIGNED: We hypothesized that second- and third-generation BCR-ABL1 TKIs may cause CVAEs through the activation of Rho-associated coiled-coil containing kinase (ROCK).
    UNASSIGNED: Peripheral blood mononuclear cells from 53 Ph+ patients on TKIs and 15 control patients without Ph+ leukemia were assessed for ROCK activity through capillary electrophoresis (median follow-up = 26 months [Q1-Q3: 5-37 months]). We also investigated the effects of TKIs and ROCK on endothelial dysfunction in vitro, which could contribute to CVAEs.
    UNASSIGNED: Patients receiving second- and third-generation TKIs had 1.6-fold greater ROCK activity compared with patients receiving imatinib and control patients. Elevated ROCK activity was associated with an increased incidence of CVAEs in Ph+ leukemia patients. In endothelial cells in vitro, we found that dasatinib and ponatinib treatment led to changes in actin intensity and endothelial permeability, which can be reversed by pharmacologic inhibition of ROCK. Ponatinib led to decreased cell proliferation, but this was not accompanied by senescence. Dasatinib and ponatinib treatment led to phosphor-inhibition of endothelial nitric oxide synthase and decreased nitric oxide production. ROCK inhibition reversed endothelial permeability and endothelial nitric oxide synthase-related endothelial dysfunction. Imatinib and nilotinib induce phosphorylation of p190RhoGAP.
    UNASSIGNED: Our findings suggest ROCK activity may be a prognostic indicator of CVAEs in patients receiving BCR-ABL1 TKIs. With further study, ROCK inhibition may be a promising approach to reduce the incidence of CVAEs associated with second- and third-generation BCR-ABL1 TKIs.
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  • 文章类型: Case Reports
    未经证实:慢性粒细胞白血病(CML)由费城染色体的存在定义,染色体9和22之间的平衡易位,导致组成型活性酪氨酸激酶,BCR-ABL1.诊断时额外的染色体异常(ACA)发生在5-10%的CML患者中,对预后很重要。它们被分类为主要或次要路线。我们研究的目的是确定193例新诊断的CML患者的ACA频率和类型,并评估患者特征,治疗反应,和生存。
    未经评估:医疗记录,结合PathWest细胞遗传学和分子实验室的数据,进行了分析。
    未经证实:诊断时14例(7.3%)患者存在ACAs。7名患者有主要途径异常,以8号染色体(+8)最常见。所有患者均接受酪氨酸激酶抑制剂(TKIs)治疗。三名患者出现爆炸危机;两名患者死亡。值得注意的是,罕见的次要和微型BCR-ABL1融合转录本的发生率很高。
    未经评估:诊断时ACA的频率与以前的报告相似。这些患者是一个高风险的队列,需要个性化治疗,考虑到前线和次要TKIs,辅助化疗,新颖的特工,和同种异体干细胞移植.
    UNASSIGNED: Chronic Myeloid Leukaemia (CML) is defined by the presence of the Philadelphia chromosome, a balanced translocation between chromosomes 9 and 22 that results in the constitutively active tyrosine kinase, BCR-ABL1. Additional chromosomal abnormalities (ACAs) at diagnosis occur in 5-10% of CML patients, and are important for prognosis. They are classified as major or minor route. The purpose of our study was to determine the frequency and type of ACAs in 193 newly diagnosed CML patients, and to evaluate patient characteristics, treatment response, and survival.
    UNASSIGNED: Medical records, in conjunction with data from the PathWest cytogenetics and molecular laboratories, were analysed.
    UNASSIGNED: ACAs were present in 14 (7.3%) of patients at diagnosis. Seven patients had major-route abnormalities, with additional chromosome 8 (+8) the most common. All patients were treated with tyrosine kinase inhibitors (TKIs). Three patients presented in blast crisis; two patients have died. Of note, there was a high incidence of the rare minor and micro BCR-ABL1 fusion transcripts.
    UNASSIGNED: Frequency of ACAs at diagnosis was similar to that of previous reports. These patients consist a higher-risk cohort, and require individualised treatment, with consideration of frontline and secondary TKIs, adjunct chemotherapy, novel agents, and allogeneic stem cell transplant.
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  • 文章类型: Journal Article
    在现实世界实践中,针对晚期肾细胞癌(RCC)患者采用靶向治疗的主要不良心血管事件(MACE)的风险尚不清楚。
    本研究的目的是比较晚期RCC患者与靶向癌症治疗相关的MACE风险和与细胞因子治疗相关的MACE风险。
    使用台湾国民健康保险研究数据库,进行了一项回顾性的全国性队列研究,涉及接受靶向治疗的晚期RCC患者(舒尼替尼,索拉非尼,帕唑帕尼,依维莫司,或替西罗莫司)或细胞因子治疗(白介素2或干扰素γ),从2007年到2018年。Cox比例风险模型用于估计MACE的风险(心肌梗死,缺血性卒中,心力衰竭,和心血管死亡)在队列中使用稳定的治疗加权逆概率的倾向评分方法。
    在2,785名晚期肾癌患者中,2,257(81%)和528(19%)接受了靶向和细胞因子治疗,分别。在治疗加权的逆概率稳定后,靶向治疗组和细胞因子治疗组的MACE发生率分别为6.65和3.36/100人年,分别(HR:1.80;95%CI:1.19-2.74)。基线心力衰竭病史(HR:3.88;95%CI:2.25-6.71),心房颤动(HR:3.60;95%CI:2.16-5.99),静脉血栓栓塞(HR:2.50;95%CI:1.27-4.92),缺血性卒中(HR:1.88;95%CI:1.14-3.11),年龄≥65岁(HR:1.81;95%CI:1.27-2.58)是靶向治疗相关MACE的独立危险因素.
    在晚期肾癌患者中,与靶向癌症治疗相关的MACE风险高于与细胞因子治疗相关的MACE风险.
    UNASSIGNED: The risk for major adverse cardiovascular events (MACE) with targeted therapies for patients with advanced renal cell carcinoma (RCC) in real-world practice remains unclear.
    UNASSIGNED: The aim of this study was to compare the risk for MACE associated with targeted cancer therapies with that associated with cytokine treatment in patients with advanced RCC.
    UNASSIGNED: Using Taiwan\'s National Health Insurance Research Database, a retrospective nationwide cohort study was conducted involving patients with advanced RCC who had received targeted therapy (sunitinib, sorafenib, pazopanib, everolimus, or temsirolimus) or cytokine therapy (interleukin-2 or interferon gamma) from 2007 to 2018. Cox proportional hazards models were used to estimate the risk for MACE (a composite of myocardial infarction, ischemic stroke, heart failure, and cardiovascular death) in the cohort using the propensity score method of stabilized inverse probability of treatment weighting.
    UNASSIGNED: In this cohort of 2,785 patients with advanced RCC, 2,257 (81%) and 528 (19%) had received targeted and cytokine therapy, respectively. After stabilized inverse probability of treatment weighting, the incidence rates of MACE were 6.65 and 3.36 per 100 person-years in the targeted and cytokine therapy groups, respectively (HR: 1.80; 95% CI: 1.19-2.74). Baseline history of heart failure (HR: 3.88; 95% CI: 2.25-6.71), atrial fibrillation (HR: 3.60; 95% CI: 2.16-5.99), venous thromboembolism (HR: 2.50; 95% CI: 1.27-4.92), ischemic stroke (HR: 1.88; 95% CI: 1.14-3.11), and age ≥ 65 years (HR: 1.81; 95% CI: 1.27-2.58) were independent risk factors for targeted therapy-associated MACE.
    UNASSIGNED: Among patients with advanced RCC, the risk for MACE associated with targeted cancer therapy is higher than that associated with cytokine therapy.
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  • 文章类型: Case Reports
    粒细胞集落刺激因子(G-CSF)促进中性粒细胞产生。产生G-CSF的肿瘤有中性粒细胞增多的特征,没有感染,大多数产生G-CSF的肿瘤患者表现出积极的临床病程和不良预后。一名71岁的妇女被诊断出患有左肺癌,cT4N1M0,IIIA期。18氟脱氧葡萄糖-正电子发射断层扫描中严重的中性粒细胞增多和骨髓摄取提示可能产生G-CSF的肺癌。新辅助放疗后,左下叶切除和左上叶部分切除。根据切除标本的病理结果,患者被诊断为产生G-CSF的左肺鳞状细胞癌.此外,基因检测显示肿瘤细胞c-ros癌基因1(ROS1)重排阳性。据我们所知,这是第一例报道的G-CSF产生性肺癌与ROS1重排,新辅助放化疗后成功进行了完全切除。
    Granulocyte colony-stimulating factor (G-CSF) promotes neutrophil production. G-CSF-producing tumors have a feature of neutrophilia without infection, and most patients with G-CSF-producing tumors show an aggressive clinical course and poor prognosis. A 71-year-old woman was diagnosed with left lung cancer, cT4N1M0, stage IIIA. Severe neutrophilia and bone marrow uptake in 18-fluorodeoxyglucose-positron emission tomography suggested the possibility of G-CSF-producing lung cancer. Following neoadjuvant radiation chemotherapy, left lower lobectomy and left upper lobe partial resection were performed. According to pathology findings of the resected specimen, the patient was diagnosed with G-CSF-producing left lung squamous cell carcinoma. Moreover, genetic tests showed that the tumor cells were positive for c-ros oncogene 1 (ROS1) rearrangements. To our knowledge, this is the first reported case of G-CSF-producing lung cancer with ROS1 rearrangements, and complete resection was performed successfully after neoadjuvant radiation chemotherapy.
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