Predictive biomarkers

预测性生物标志物
  • 文章类型: Journal Article
    UNASSIGNED: Recent studies have shown that the triglyceride glucose index (TyG) and cystatin C (CysC) are closely related to cardiovascular disease, but there is limited research on the prognosis of patients with acute coronary syndrome (ACS) after percutaneous coronary intervention (PCI). The aim of this study was to explore the predictive value of the combination of the TyG index and CysC in predicting major adverse cardiovascular events (MACEs) in ACS patients who underwent PCI.
    UNASSIGNED: This retrospective study included 319 ACS patients who underwent PCI. The clinical endpoint was the occurrence of MACEs, including all-cause mortality, heart failure, non-fatal myocardial infarction, target vessel revascularization, and angina requiring hospitalization. Patients were classified into MACEs (65 cases) and non-MACEs (254 cases) groups. Univariate factor and multivariate analysis were used to identify predictors of MACEs. The receiver operating curve (ROC) of the prediction model of MACEs was determined. Additionally, the net reclassification improvement and integrated discrimination improvement indexes were calculated to further assess the additional predictive value of the risk factors for MACEs. Subgroup and interaction analysis between the TyG index combined with CysC and MACEs were conducted in various subgroups. Patients were stratified according to the optimal cutoff point value of the TyG index and the CysC determined by ROC curve analysis. The Kaplan-Meier analysis method was used to construct a survival curve 1 year after PCI.
    UNASSIGNED: During a median follow-up period of 14 months, 65 (20.38%) patients had experienced at least one primary endpoint event. Multivariate logistic regression analysis indicated that the TyG index and CysC were independently associated with an increased risk of MACEs after PCI (OR, 2.513, 95% CI 1.451-4.351, P= 0.001; and OR, 4.741, 95% CI 1.344-16.731, P=0.016, respectively). The addition of the TyG index and CysC to the baseline risk model had the strongest incremental effect for predicting MACEs in terms of the C-statistic from 0.789 (95% CI 0.723-0.855, P<0.001) to 0.799 (95% CI 0.733-0.865, P<0.001). Furthermore, Kaplan-Meier analysis demonstrated that a TyG index greater than 9.325 and a CysC value greater than 1.065 mg/ml were significantly associated with an increased risk of MACEs (log-rank, all P < 0.01).
    UNASSIGNED: The TyG index predicts MACEs after PCI in patients with ASC independent of known cardiovascular risk factors. Adjustment of the CysC by the TyG index further improves the predictive ability for MACEs in patients with ACS undergoing PCI. Thus, both of them are expected to become new prognostic indicators for MACEs in patients with ACS after PCI.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    靶向治疗开发和肿瘤测序技术的进步正在将癌症重新分类为较小的生物标志物定义的疾病。随机对照试验(RCT)在罕见疾病中通常不切实际,导致呼吁单臂研究足以在强有力的生物学理论基础上为临床实践提供信息。然而,没有RCT,有利的结果通常归因于治疗,但可能是由于疾病进程更加缓慢或其他偏见.当RCT中确定了靶向治疗在常见癌症中的临床益处时,这种益处可能会扩展到共享相同生物标志物的罕见癌症.然而,需要仔细考虑将现有试验证据扩展到特定癌症类型之外是否合适.需要一个框架来推断针对罕见癌症的生物标志物靶向治疗的证据,以支持透明的决策。
    构建一个框架,概述从常见癌症的RCT产生的生物标志物靶向治疗到共享相同生物标志物的不同罕见癌症的外推证据所必需的标准的广度。
    一系列问题阐明了外推的基本标准。
    该框架是从先前对方法学指导的范围界定审查中确定的用于外推的核心主题开发的。欧洲药品管理局指导文件中概述的外推原则,美国食品和药物管理局,和澳大利亚的医疗服务咨询委员会成立。
    我们提出了一个框架,用于评估常见和罕见癌症之间疾病和治疗结果相似性的关键假设,包括五个基本组成部分:生物标志物定义的癌症的预后,生物标志物测试分析有效性,生物标志物可操作性,治疗功效,和安全。确定的知识差距可用于确定未来研究的优先级。
    该框架将允许系统评估,规范监管,报销和临床决策,并促进关键利益相关者之间在药物评估中进行透明的讨论。
    UNASSIGNED: Advances in targeted therapy development and tumor sequencing technology are reclassifying cancers into smaller biomarker-defined diseases. Randomized controlled trials (RCTs) are often impractical in rare diseases, leading to calls for single-arm studies to be sufficient to inform clinical practice based on a strong biological rationale. However, without RCTs, favorable outcomes are often attributed to therapy but may be due to a more indolent disease course or other biases. When the clinical benefit of targeted therapy in a common cancer is established in RCTs, this benefit may extend to rarer cancers sharing the same biomarker. However, careful consideration of the appropriateness of extending the existing trial evidence beyond specific cancer types is required. A framework for extrapolating evidence for biomarker-targeted therapies to rare cancers is needed to support transparent decision-making.
    UNASSIGNED: To construct a framework outlining the breadth of criteria essential for extrapolating evidence for a biomarker-targeted therapy generated from RCTs in common cancers to different rare cancers sharing the same biomarker.
    UNASSIGNED: A series of questions articulating essential criteria for extrapolation.
    UNASSIGNED: The framework was developed from the core topics for extrapolation identified from a previous scoping review of methodological guidance. Principles for extrapolation outlined in guidance documents from the European Medicines Agency, the US Food and Drug Administration, and Australia\'s Medical Services Advisory Committee were incorporated.
    UNASSIGNED: We propose a framework for assessing key assumptions of similarity of the disease and treatment outcomes between the common and rare cancer for five essential components: prognosis of the biomarker-defined cancer, biomarker test analytical validity, biomarker actionability, treatment efficacy, and safety. Knowledge gaps identified can be used to prioritize future studies.
    UNASSIGNED: This framework will allow systematic assessment, standardize regulatory, reimbursement and clinical decision-making, and facilitate transparent discussions between key stakeholders in drug assessment for rare biomarker-defined cancers.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    卵巢癌(OC)仍然是一种潜在的致命恶性肿瘤,在过去的二十年中,几乎没有获得改善患者生存率的重要结果。新的靶向治疗如聚(ADP-核糖)聚合酶抑制剂(PARPi)已成功地引入OC的临床管理,但并不是所有的病人都能受益,耐药性几乎不可避免地发生。确定可能对基于PARPi的治疗有反应的患者依赖于同源重组缺陷(HRD)测试。因为这种情况与对这些治疗的反应有关。这篇综述总结了目前在临床实践中使用的基因组和功能HRD检测方法以及正在评估的方法。OC中HRD检测的临床意义,以及他们目前的陷阱和局限性。将特别强调正在开发的功能性HRD测定以及使用机器学习和人工智能技术作为克服HRD测试当前局限性的新策略,以更好地个性化治疗以改善患者预后。
    Ovarian carcinoma (OC) still represents an insidious and fatal malignancy, and few significant results have been obtained in the last two decades to improve patient survival. Novel targeted therapies such as poly (ADP-ribose) polymerase inhibitors (PARPi) have been successfully introduced in the clinical management of OC, but not all patients will benefit, and drug resistance almost inevitably occurs. The identification of patients who are likely to respond to PARPi-based therapies relies on homologous recombination deficiency (HRD) tests, as this condition is associated with response to these treatments. This review summarizes the genomic and functional HRD assays currently used in clinical practice and those under evaluation, the clinical implications of HRD testing in OC, and their current pitfalls and limitations. Special emphasis will be placed on the functional HRD assays under development and the use of machine learning and artificial intelligence technologies as novel strategies to overcome the current limitations of HRD tests for a better-personalized treatment to improve patient outcomes.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    CAR-T细胞疗法标志着癌症治疗和细胞工程技术新时代的到来。该综述强调了阻碍细胞毒性引起的治疗效率的挑战,免疫抑制肿瘤环境,T细胞浸润减少。为了实现患者的总生存期(OS)和无事件生存期(EFS),描述了潜在靶标选择和各种CAR-T细胞设计技术的概念背景,这些技术可以最大程度地减少脱靶效应,减少毒性,从而增加CAR-T细胞治疗在血液恶性肿瘤以及实体瘤中的弹性。此外,它深入研究了基因编辑和合成生物学等尖端技术,为增强CAR-T细胞的功能和克服免疫逃避机制提供了新的机会。这篇综述提供了对基于CAR-T细胞的基因治疗的复杂和不同方面的全面理解,包括科学和临床方面。通过有效地解决障碍和利用尖端技术的能力,CAR-T细胞疗法显示出从根本上改变免疫疗法和重塑癌症治疗方法的潜力。
    The CAR-T cell therapy has marked the dawn of new era in the cancer therapeutics and cell engineering techniques. The review emphasizes on the challenges that obstruct the therapeutic efficiency caused by cell toxicities, immunosuppressive tumor environment, and decreased T cell infiltration. In the interest of achieving the overall survival (OS) and event-free survival (EFS) of patients, the conceptual background of potential target selection and various CAR-T cell design techniques are described which can minimize the off-target effects, reduce toxicity, and thus increase the resilience of CAR-T cell treatment in the haematological malignancies as well as in solid tumors. Furthermore, it delves into cutting-edge technologies like gene editing and synthetic biology, providing new opportunities to enhance the functionality of CAR-T cells and overcome mechanisms of immune evasion. This review provides a comprehensive understanding of the complex and diverse aspects of CAR-T cell-based gene treatments, including both scientific and clinical aspects. By effectively addressing the obstacles and utilizing the capabilities of cutting-edge technology, CAR-T cell therapy shows potential in fundamentally changing immunotherapy and reshaping the approach to cancer treatment.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    背景:免疫治疗提高了癌症患者的生存率,但是确定谁会对治疗有反应仍然是一个挑战。蛋白质组学技术的最新进展使得能够在单个实验中鉴定和定量几乎所有表达的蛋白质。质谱与其他高通量技术的整合为全面和系统的分析癌症血浆蛋白质组铺平了道路。促进早期诊断和个性化治疗。在这种情况下,我们的研究目的是研究使用SWATH-MS(所有理论质谱的序贯窗口采集)策略对接受派姆单抗治疗的新诊断NSCLC患者进行血浆蛋白质组分析的预测和预后价值.
    方法:为此,纳入64例用派姆单抗治疗的新诊断的晚期NSCLC患者,并在治疗前和治疗期间从所有患者收集血液样品。总共收集了171份血液样本,和血浆样本采用SWATH-MS策略进行分析。接下来,我们比较了接受pembrolizumab治疗前转移性NSCLC患者的血浆蛋白表达,并将队列分为两组,以鉴定蛋白质组学特征,使我们能够预测免疫治疗反应.
    结果:通过SWATH-MS策略进行的蛋白质组学分析使我们能够在应答者和非应答者患者之间鉴定出324种差异表达的蛋白质。此外,我们开发了一个预测模型,发现了七种蛋白质的组合,包括ATG9A,DCDC2,HPS5,FIL1L,LZTL1,PGTA,和SPTN2,比单独的PD-L1表达具有更强的预测价值。此外,生存分析表明,低水平的ATG9A,DCDC2和HPS5与较长的无进展生存期(PFS)和总生存期(OS)相关。而低水平的SPTN2与OS较差相关。
    结论:我们的工作强调了蛋白质组学技术在NSCLC患者血液样本中检测预测性生物标志物的潜在价值。这些分析揭示了NSCLC患者对免疫疗法的反应与7种蛋白质之间的相关性。
    BACKGROUND: Immunotherapy has improved survival rates in cancer patients, but identifying those who will respond to treatment remains a challenge. Recent advances in proteomic technologies have enabled the identification and quantification of nearly all expressed proteins in a single experiment. Integration of mass spectrometry with other high-throughput technologies has paved the way for comprehensive and systematic analysis of the plasma proteome in cancer, facilitating early diagnosis and personalized treatment. In this context, the objective of our study was to investigate the predictive and prognostic value of plasma proteome analysis using the SWATH-MS (Sequential Window Acquisition of All Theoretical Mass Spectra) strategy in newly diagnosed NSCLC patients who received pembrolizumab therapy.
    METHODS: For this purpose, 64 newly diagnosed advanced NSCLC patients treated with pembrolizumab therapy were enrolled and blood samples were collected from all patients before and during therapy. In total 171 blood samples were collected, and plasma samples were analysed employing SWATH-MS strategy. Next, we compared the plasma protein expression of metastatic NSCLC patients prior to receiving pembrolizumab treatment and divided the cohort into two groups in order to identify a proteomic signature that allow us to predict immunotherapy response.
    RESULTS: Proteomic analyses by SWATH-MS strategy allow us to identified 324 differentially expressed proteins between responder and non-responder patients. In addition, we developed a predictive model and found a combination of seven proteins, including ATG9A, DCDC2, HPS5, FIL1L, LZTL1, PGTA, and SPTN2, with stronger predictive value than PD-L1 expression alone. Additionally, survival analyses showed that low levels of ATG9A, DCDC2, and HPS5 were associated with longer progression-free survival (PFS) and overall survival (OS), while low levels of SPTN2 were associated with worse OS.
    CONCLUSIONS: Our work highlights the potential value of proteomic technologies to detect predictive biomarkers in blood samples of NSCLC patients. These analyses shed light on the correlation between the response to immunotherapy in patients with NSCLC and the set of 7 proteins.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    尽管免疫检查点阻断(ICB)目前已被批准用于联合化疗治疗广泛期小细胞肺癌(SCLC),相对较少的患者对这些疗法表现出持久的临床获益(DCB).需要预测反应的生物标志物。对来自35例用ICB治疗的SCLC患者的活检进行转录组学分析;评估基因标记与应答的关联。21例患者在一线使用ICB联合铂类化疗治疗;14例患者在二线使用ICB治疗。二线SCLC中ICB后的DCB(14例患者中有3例)与炎症相关基因的转录组水平统计学上较高相关(p=0.003),抗原呈递机制(p=0.03),干扰素反应(p<0.05),和增加CD8T细胞(p=0.02)。相比之下,这些基因特征在一线设置中没有显著差异.我们的数据表明,二线环境中SCLC对ICB的反应可以通过肿瘤的基线炎症状态来预测;然而,这种与炎症的强关联在一线治疗中未见到.我们假设化疗会改变免疫环境,从而对ICB产生反应。需要其他生物标志物来预测一线治疗患者的反应。
    Although immune checkpoint blockade (ICB) is currently approved for the treatment of extensive-stage small-cell lung cancer (SCLC) in combination with chemotherapy, relatively few patients have demonstrated durable clinical benefit (DCB) to these therapies. Biomarkers predicting responses are needed. Biopsies from 35 SCLC patients treated with ICB were subjected to transcriptomic analysis; gene signatures were assessed for associations with responses. Twenty-one patients were treated with ICB in the first-line setting in combination with platinum-based chemotherapy; fourteen patients were treated in the second-line setting with ICB alone. DCB after ICB in SCLC in the second-line setting (3 of 14 patients) was associated with statistically higher transcriptomic levels of genes associated with inflammation (p = 0.003), antigen presentation machinery (p = 0.03), interferon responses (p < 0.05), and increased CD8 T cells (p = 0.02). In contrast, these gene signatures were not significantly different in the first-line setting. Our data suggest that responses to ICB in SCLC in the second-line setting can be predicted by the baseline inflammatory state of the tumor; however, this strong association with inflammation was not seen in the first-line setting. We postulate that chemotherapy alters the immune milieu allowing a response to ICB. Other biomarkers will be needed to predict responses in first-line therapy patients.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    本研究旨在探讨非小细胞肺癌(NSCLC)患者抗血管生成治疗相关生物标志物的研究进展。从而加强治疗选择,推进个性化和精准医疗,以提高治疗效果和患者生存率。本文综述了近年来非小细胞肺癌抗血管生成治疗预测生物标志物的重要发现。如(1)液体活检预测生物标志物:研究已通过液体活检确定活化的循环内皮细胞(aCECs)作为抗血管生成治疗功效的潜在预测生物标志物;(2)成像生物标志物:先进的成像技术,如动态对比增强的集成磁共振正电子发射断层扫描(MR-PET),用于评估非小细胞肺癌患者的肿瘤血管生成并评估抗血管生成药物的临床疗效;(3)遗传预测生物标志物:研究已经探索了血管内皮生长因子受体-1(VEGFR-1)和血管内皮生长因子-A(VEGF-A)的多态性,以及血浆VEGF-A水平如何预测接受化疗联合贝伐单抗的非鳞NSCLC患者的结局和预后。尽管在识别与抗血管生成治疗相关的生物标志物方面取得了进展,仍然存在一些挑战,包括临床试验的局限性,非小细胞肺癌的异质性,和技术障碍。未来的研究将需要广泛的临床验证和深入的机械研究,以充分利用这些生物标志物用于个性化治疗的潜力。
    This study aimed to explore advances in biomarkers related to anti-angiogenic therapy in patients with non-small cell lung cancer (NSCLC), thereby enhancing treatment selection, advancing personalized and precision medicine to improve treatment outcomes and patient survival rates. This article reviews key discoveries in predictive biomarkers for anti-angiogenic therapy in NSCLC in recent years, such as (1) liquid biopsy predictive biomarkers: studies have identified activated circulating endothelial cells (aCECs) via liquid biopsy as potential predictive biomarkers for the efficacy of anti-angiogenic therapy; (2) imaging biomarkers: advanced imaging technologies, such as dynamic contrast-enhanced integrated magnetic resonance positron emission tomography (MR-PET), are used to assess tumor angiogenesis in patients with NSCLC and evaluate the clinical efficacy of anti-angiogenic drugs; (3) genetic predictive biomarkers: research has explored polymorphisms of Vascular Endothelial Growth Factor Receptor-1 (VEGFR-1) and vascular endothelial growth factor-A (VEGF-A), as well as how plasma levels of VEGF-A can predict the outcomes and prognosis of patients with non-squamous NSCLC undergoing chemotherapy combined with bevacizumab. Despite progress in identifying biomarkers related to anti-angiogenic therapy, several challenges remain, including limitations in clinical trials, heterogeneity in NSCLC, and technical hurdles. Future research will require extensive clinical validation and in-depth mechanistic studies to fully exploit the potential of these biomarkers for personalized treatment.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    肺的小活检通常通过许多方法获得,包括几个导致细胞学标本。因为肺癌通常被诊断为无法进行原发性切除术的阶段,至关重要的是,所有的诊断,预测性,和预后信息来自这样的小活检标本。随着可用诊断和预测标志物数量的增加,细胞病理学家必须熟悉标本采集的当前要求,处理,结果报告,以及分子和其他辅助测试,所有这些都在这里回顾。
    Small biopsies of lung are routinely obtained by many methods, including several that result in cytologic specimens. Because lung cancer is often diagnosed at a stage for which primary resection is not an option, it is critical that all diagnostic, predictive, and prognostic information be derived from such small biopsy specimens. As the number of available diagnostic and predictive markers expands, cytopathologists must familiarize themselves with current requirements for specimen acquisition, handling, results reporting, and molecular and other ancillary testing, all of which are reviewed here.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    在过去的十年里,随着复杂性的增加,癌症诊断经历了显著的转变。微创诊断测试,由先进的成像和早期检测协议驱动,正在重新定义患者护理并减少对更具侵入性的程序的需求。现代细胞病理学家现在保护患者样本进行重要的生物标志物和分子检测。在这篇文章中,我们探索辅助检测模式和生物标志物在器官特异性环境中的作用,强调精准医学的变革性影响。最后,80多种食品和药物管理局批准的预测生物标志物的出现标志着一个新时代的到来,指导癌症护理朝着个性化和有针对性的策略发展。
    Over the last decade, cancer diagnostics has undergone a notable transformation with increasing complexity. Minimally invasive diagnostic tests, driven by advanced imaging and early detection protocols, are redefining patient care and reducing the need for more invasive procedures. Modern cytopathologists now safeguard patient samples for vital biomarker and molecular testing. In this article, we explore ancillary testing modalities and the role of biomarkers in organ-specific contexts, underscoring the transformative impact of precision medicine. Finally, the advent of more than 80 Food and Drug Administration-approved predictive biomarkers signals a new era, guiding cancer care toward personalized and targeted strategies.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    肝细胞癌(HCC)是最常见的肝癌,是全球癌症相关死亡的主要原因之一。目前尚无可靠的早期诊断HCC的生物标志物。循环microRNAs(miRNAs)作为潜在的疾病生物标志物已经引起了人们的关注。通过小RNA下一代测序,通过对血清miRNAs的分析,鉴定出能够区分晚期HCC和早期HCC(n=246);来自CIRHOSIS的晚期HCC(n=299);来自健康的晚期HCC(n=320);来自早期HCC的健康(n=343);来自RHOS414的健康(n=)的分子特征.肝硬化患者和早期HCC患者表现出相似的血清miRNA谱,然而,少数miRNA(n=57)能够区分这两类患者.该研究的第二个目的是鉴定能够预测晚期HCC患者对治疗的反应的血清miRNA。所有患者均接受索拉非尼作为一线治疗:24例无反应,24例有反应。循环miRNA的分析揭示了能够分离两个亚组的54个miRNA特征。这项研究表明,循环miRNA可能是有用的生物标志物,用于监测从肝硬化到晚期HCC的肝病患者,并可能预测基于索拉非尼的一线治疗的易感性。
    Hepatocellular carcinoma (HCC) is the most common liver cancer and is among the leading causes of cancer-related death worldwide. There is no reliable biomarker for the early diagnosis of HCC. Circulating microRNAs (miRNAs) have attracted attention as potential biomarkers of disease. By small-RNA next-generation sequencing, the analysis of serum miRNAs led to the identification of molecular signatures able to discriminate advanced HCC from early HCC (n = 246); advanced HCC from CIRRHOSIS (n = 299); advanced HCC from HEALTHY (n = 320); HEALTHY from early HCC (n = 343); and HEALTHY from CIRRHOSIS (n = 414). Cirrhotic patients and early HCC patients exhibited similar serum miRNA profiles, yet a small number of miRNAs (n = 57) were able to distinguish these two classes of patients. A second objective of the study was to identify serum miRNAs capable of predicting the response to therapy in patients with advanced HCC. All patients were treated with sorafenib as first-line therapy: 24 were nonresponsive and 24 responsive. Analysis of circulating miRNAs revealed a 54 miRNAs signature able to separate the two subgroups. This study suggested that circulating miRNAs could be useful biomarkers for monitoring patients with liver diseases ranging from cirrhosis to advanced HCC and possibly predicting susceptibility to first-line treatment based on sorafenib.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

公众号