diagnosis and prognosis

诊断和预后
  • 文章类型: Journal Article
    心血管疾病(CVD)发病率的增加是一个重要的全球健康问题,每年影响数百万人。急性CVD的准确诊断提出了巨大的挑战,误诊可显著降低患者生存率。传统的生物标志物在心血管疾病的诊断和预后中起着至关重要的作用,但是它们会受到各种因素的影响,比如年龄,性别,和肾功能。可溶性ST2(sST2)是一种与不同CVD密切相关的新型生物标志物。其低参考变化值使其适合连续测量,不受年龄影响,肾功能,和其他混杂因素,促进心血管疾病的风险分层。此外,sST2与其他生物标志物的结合可提高诊断准确性和预后价值.本综述旨在对sST2进行全面概述,重点介绍其作为不同类型CVD的心肌标志物的诊断和预后价值,并讨论sST2目前的局限性。
    The increasing incidence of cardiovascular disease (CVD) is a significant global health concern, affecting millions of individuals each year. Accurate diagnosis of acute CVD poses a formidable challenge, as misdiagnosis can significantly decrease patient survival rates. Traditional biomarkers have played a vital role in the diagnosis and prognosis of CVDs, but they can be influenced by various factors, such as age, sex, and renal function. Soluble ST2 (sST2) is a novel biomarker that is closely associated with different CVDs. Its low reference change value makes it suitable for continuous measurement, unaffected by age, kidney function, and other confounding factors, facilitating risk stratification of CVDs. Furthermore, the combination of sST2 with other biomarkers can enhance diagnostic accuracy and prognostic value. This review aims to provide a comprehensive overview of sST2, focusing on its diagnostic and prognostic value as a myocardial marker for different types of CVDs and discussing the current limitations of sST2.
    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
    非小细胞肺癌(NSCLC),包括肺鳞状细胞癌(LUSC)和肺腺癌(LUAD)亚型,是一种恶性肿瘤类型,5年生存率低。识别新的强大的诊断生物标志物,预后生物标志物,和NSCLC的潜在治疗靶点是迫切需要的。
    UCSCXena,UALCAN,和GEO数据库用于筛选和分析差异表达基因,监管模式,非小细胞肺癌的遗传/表观遗传改变。UCSCXena数据库,GEO数据库,组织微阵列,和免疫组织化学染色分析用于评估诊断和预后价值。进行功能增益测定以检查作用。估计,TIMER,链接的组学,STRING,和DAVID算法用于分析潜在的分子机制。
    NR3C2被鉴定为NSCLC中潜在的重要分子。NR3C2在NSCLC中低水平表达,LUAD,和LUSC组织,这与这些患者的临床指标显着相关。受试者工作特征曲线分析提示NR3C2表达模式改变对NSCLC有诊断价值,LUAD,尤其是LUSC患者。NR3C2表达水平的降低可以帮助预测NSCLC和LUAD患者的不良预后,而不是LUSC患者。这些结果已通过数据库分析和组织微阵列上的真实世界临床样品得到证实。拷贝数变异有助于NSCLC和LUAD中NR3C2的低表达水平,而启动子DNA甲基化参与其在LUSC中的下调。两个NR3C2启动子甲基化位点对LUSC诊断具有较高的敏理性和特异性,具有临床运用潜力。NR3C2可能是NSCLC发生发展的关键参与者,与肿瘤微环境和免疫细胞浸润密切相关。NR3C2共表达的基因参与许多癌症相关的信号通路,进一步支持NR3C2在NSCLC中的潜在重要作用。
    NR3C2是一种新的NSCLC潜在的诊断和预后生物标志物和治疗靶点。
    UNASSIGNED: Non-small cell lung cancer (NSCLC), including the lung squamous cell carcinoma (LUSC) and lung adenocarcinoma (LUAD) subtypes, is a malignant tumor type with a poor 5-year survival rate. The identification of new powerful diagnostic biomarkers, prognostic biomarkers, and potential therapeutic targets in NSCLC is urgently required.
    UNASSIGNED: The UCSC Xena, UALCAN, and GEO databases were used to screen and analyze differentially expressed genes, regulatory modes, and genetic/epigenetic alterations in NSCLC. The UCSC Xena database, GEO database, tissue microarray, and immunohistochemistry staining analyses were used to evaluate the diagnostic and prognostic values. Gain-of-function assays were performed to examine the roles. The ESTIMATE, TIMER, Linked Omics, STRING, and DAVID algorithms were used to analyze potential molecular mechanisms.
    UNASSIGNED: NR3C2 was identified as a potentially important molecule in NSCLC. NR3C2 is expressed at low levels in NSCLC, LUAD, and LUSC tissues, which is significantly related to the clinical indexes of these patients. Receiver operating characteristic curve analysis suggests that the altered NR3C2 expression patterns have diagnostic value in NSCLC, LUAD, and especially LUSC patients. Decreased NR3C2 expression levels can help predict poor prognosis in NSCLC and LUAD patients but not in LUSC patients. These results have been confirmed both with database analysis and real-world clinical samples on a tissue microarray. Copy number variation contributes to low NR3C2 expression levels in NSCLC and LUAD, while promoter DNA methylation is involved in its downregulation in LUSC. Two NR3C2 promoter methylation sites have high sensitivity and specificity for LUSC diagnosis with clinical application potential. NR3C2 may be a key participant in NSCLC development and progression and is closely associated with the tumor microenvironment and immune cell infiltration. NR3C2 co-expressed genes are involved in many cancer-related signaling pathways, further supporting a potentially significant role of NR3C2 in NSCLC.
    UNASSIGNED: NR3C2 is a novel potential diagnostic and prognostic biomarker and therapeutic target in NSCLC.
    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
    肝细胞癌(HCC)是世界上癌症相关死亡的重要原因。HCC的发生发展与非编码RNA(ncRNAs)的异常调控密切相关,如microRNAs(miRNAs),长链非编码RNA(lncRNA),和环状RNAs(circRNAs)。癌症生物学中的重要生物学途径,如细胞增殖,死亡,和转移,受到这些ncRNAs的影响,调节基因表达。非编码RNA在HCC中的异常表达增加了它们作为新的生物标志物用于诊断的可能性。预后,和治疗目标。此外,通过控制癌症相关基因的表达,miRNA可以作为肿瘤抑制因子或癌基因发挥作用。另一方面,lncRNAs通过与细胞内的其他分子相互作用在癌症的发展中发挥作用,which,反过来,影响染色质重塑等过程,转录,和转录后过程。目前的研究强调了ncRNA驱动的调控系统在HCC中的重要性,这揭示了肿瘤的行为和治疗反应。这项研究强调了ncRNAs通过使用精准医学方法来增强目前的HCC护理方法,从而在这种困难的疾病环境中改善患者预后的巨大潜力。
    Hepatocellular carcinoma (HCC) is a significant contributor to cancer-related deaths in the world. The development and progression of HCC are closely correlated with the abnormal regulation of non-coding RNAs (ncRNAs), such as microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs). Important biological pathways in cancer biology, such as cell proliferation, death, and metastasis, are impacted by these ncRNAs, which modulate gene expression. The abnormal expression of non-coding RNAs in HCC raises the possibility that they could be applied as new biomarkers for diagnosis, prognosis, and treatment targets. Furthermore, by controlling the expression of cancer-related genes, miRNAs can function as either tumor suppressors or oncogenes. On the other hand, lncRNAs play a role in the advancement of cancer by interacting with other molecules within the cell, which, in turn, affects processes such as chromatin remodeling, transcription, and post-transcriptional processes. The importance of ncRNA-driven regulatory systems in HCC is being highlighted by current research, which sheds light on tumor behavior and therapy response. This research highlights the great potential of ncRNAs to improve patient outcomes in this difficult disease landscape by augmenting the present methods of HCC care through the use of precision medicine approaches.
    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
    目标:超越三种常规多模态融合策略的不足(即,input-,功能和输出级融合),我们提出了一种双向注意力感知的流体金字塔特征集成融合网络(BAF-Net),具有跨模态交互功能,用于多模态医学图像诊断和预后。&#xD;方法:BAF-Net由两个相同的分支组成,以保留单峰特征和一个双向注意力感知的蒸馏流,以逐步吸收跨模态补充并学习自下而上和自上而下的补充特征。采用流体金字塔连接来集成网络不同级别的分层特征,和渠道方面的注意力模块被用来减轻跨模式跨级别的不兼容性。此外,引入了深度可分离卷积来融合跨模态跨级别特征,以在很大程度上缓解参数的增加。根据两个临床任务评估了BAF-Net的泛化能力:(1)内部PET-CT数据集,包括174名患者,用于区分肺癌和肺结核。(2)公共多中心PET-CT头颈癌数据集,来自9个中心的800名患者进行总体生存预测。 主要结果:在LC-PTB数据集上,与输入级融合模型(AUC=0.6825;p<0.05)相比,BAF-Net(AUC=0.7342)的性能有所改善,特征级融合模型(AUC=0.6968;p=0.0547),输出级融合模型(AUC=0.7011;p<0.05)。在H&N癌症数据集上,BAF-Net(C-index=0.7241)优于输入-,feature-,和输出级融合模型,2.95%,3.77%,和1.52%的C指数增量(分别为p=0.3336、0.0479和0.2911)。消融实验证明了所有设计模块在两个数据集中关于所有评估指标的有效性。&#xD;意义:在两个数据集上进行的大量实验表明,BAF-Net在诊断和预后方面比三种常规融合策略和PET或CT单峰网络具有更好的性能和鲁棒性。
    Objective. To go beyond the deficiencies of the three conventional multimodal fusion strategies (i.e. input-, feature- and output-level fusion), we propose a bidirectional attention-aware fluid pyramid feature integrated fusion network (BAF-Net) with cross-modal interactions for multimodal medical image diagnosis and prognosis.Approach. BAF-Net is composed of two identical branches to preserve the unimodal features and one bidirectional attention-aware distillation stream to progressively assimilate cross-modal complements and to learn supplementary features in both bottom-up and top-down processes. Fluid pyramid connections were adopted to integrate the hierarchical features at different levels of the network, and channel-wise attention modules were exploited to mitigate cross-modal cross-level incompatibility. Furthermore, depth-wise separable convolution was introduced to fuse the cross-modal cross-level features to alleviate the increase in parameters to a great extent. The generalization abilities of BAF-Net were evaluated in terms of two clinical tasks: (1) an in-house PET-CT dataset with 174 patients for differentiation between lung cancer and pulmonary tuberculosis. (2) A public multicenter PET-CT head and neck cancer dataset with 800 patients from nine centers for overall survival prediction.Main results. On the LC-PTB dataset, improved performance was found in BAF-Net (AUC = 0.7342) compared with input-level fusion model (AUC = 0.6825;p< 0.05), feature-level fusion model (AUC = 0.6968;p= 0.0547), output-level fusion model (AUC = 0.7011;p< 0.05). On the H&N cancer dataset, BAF-Net (C-index = 0.7241) outperformed the input-, feature-, and output-level fusion model, with 2.95%, 3.77%, and 1.52% increments of C-index (p= 0.3336, 0.0479 and 0.2911, respectively). The ablation experiments demonstrated the effectiveness of all the designed modules regarding all the evaluated metrics in both datasets.Significance. Extensive experiments on two datasets demonstrated better performance and robustness of BAF-Net than three conventional fusion strategies and PET or CT unimodal network in terms of diagnosis and prognosis.
    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
    分析肺部超声评分(LUS)联合血清炎症指标在不同严重程度重症肺炎中的意义及对预后的临床价值。
    选取2017年6月至2021年6月甘肃省人民医院收治的100例重症肺炎患者作为研究对象。根据急性生理和慢性健康(APACHEII)评分,他们被分为低风险组(28例),中危组(39例)和高危组(33例)。患者的一般临床资料(年龄、性别,吸烟史,和潜在疾病)被收集,测量患者的肺部超声评分(LUS),和血清炎症指标(IL-6,IL-10,TNF-α,CRP和NLR)水平;Pearson相关性分析评价LUS评分、血清炎症指标水平与病情严重程度的关系;受试者工作特征(ROC)曲线分析,评价LUS评分与血清炎症指标联合诊断对重症肺炎病情严重程度的预后价值。
    随着重症肺炎严重程度的增加,LUS评分和体内炎症水平持续升高,LUS联合血清炎症指标可区分低危,中危和高危重症肺炎具有较高的诊断价值。此外,LUS和血清炎症标志物的联合诊断也与重症肺炎患者的预后密切相关,可以区分预后。
    LUS联合血清炎症指标(IL-6,IL-10,TNF-α,CRP和NLR)可以鉴别重症肺炎的严重程度和预后,这可能是诊断重症肺炎和指导早期临床干预的新方向。
    UNASSIGNED: To analyze the significance of lung ultrasound score (LUS) combined with serum inflammatory indexes in different severities of severe pneumonia and its clinical value on prognosis.
    UNASSIGNED: 100 patients with severe pneumonia treated in the Gansu Provincial Hospital from June 2017 to June 2021 were selected as the research objects. According to the acute physiology and chronic health (APACHE II) score, they were divided into a low-risk group (28 cases), a medium-risk group (39 cases) and a high-risk group (33 cases). The general clinical data of the patients (age, gender, smoking history, and underlying diseases) were collected, the lung ultrasound score (LUS) of the patients was measured, and the serum inflammatory indicators (IL-6, IL-10, TNF-α, CRP and NLR) levels; Pearson correlation analysis to evaluate the correlation between LUS score, serum inflammatory index levels and disease severity; receiver operating characteristic (ROC) curve analysis to evaluate the prognostic value of the combined diagnosis of LUS score and serum inflammatory index for the severity of severe pneumonia.
    UNASSIGNED: With the increase in the severity of severe pneumonia, the LUS score and the level of inflammation in the body continued to increase, and LUS combined with serum inflammatory indexes could distinguish the severity of low-risk, medium-risk and high-risk severe pneumonia and had high diagnostic value. In addition, the combined diagnosis of LUS and serum inflammatory markers is also closely related to the prognosis of patients with severe pneumonia, which can distinguish the prognosis.
    UNASSIGNED: LUS combined with serum inflammatory indicators (IL-6, IL-10, TNF-α, CRP and NLR) can differentiate the severity and prognosis of severe pneumonia, which may be a new direction for diagnosing severe pneumonia and guide early clinical intervention.
    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
    目的:探讨AGR2在上皮性卵巢癌(EOC)诊断及预后判断中的价值。方法:采用ELISA法检测203例受试者血清AGR2,而CA125和HE4通过增强化学发光免疫分析法测定。使用受试者工作特征曲线评估诊断效能。采用组织微阵列来比较组织AGR2。结果:AGR2,CA125和HE4的联合检测提高了EOC与健康对照的诊断特异性。血清AGR2显著增高,而EOC患者术后CA125和HE4显著降低。低AGR2表达可能预示预后较差。结论:AGR2的加入提高了CA125和HE4在EOC诊断中的特异性,并且可能是一种肿瘤抑制因子,其在EOC患者中的低表达预示着较差的预后。
    Purpose: To clarify the value of AGR2 for diagnosis and prognosis in epithelial ovarian cancer (EOC). Methods: Serum AGR2 from 203 subjects were detected by ELISA, while CA125 and HE4 were determined by enhanced chemiluminescence immunoassay. The diagnostic efficacy was assessed using receiver operating characteristic curves. Tissue microarray was employed to compare tissue AGR2. Results: Combined detection of AGR2, CA125 and HE4 improved the diagnostic specificity in the discrimination of EOC from healthy controls. Serum AGR2 was significantly higher, while CA125 and HE4 were significantly lower in EOC patients post-operatively. Low AGR2 expression may predict poorer prognosis. Conclusion: Incorporation of AGR2 improved the specificity of CA125 and HE4 in EOC diagnosis, and may act as a tumor suppressor whose low expression in EOC patients predicted poorer outcomes.
    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
    糖尿病肾病(DKD)是终末期肾病(ESRD)的主要原因。临床实践中对DKD的无创诊断和预后预测的需求尚未满足。这项研究检查了磁共振(MR)标志物的肾室体积和表观扩散系数(ADC)对轻度,中度,严重的DKD
    本研究在中国临床试验注册中心注册(注册号:ChiCTR-RRC-17012687)。前瞻性随机纳入67例DKD患者,并接受了临床检查和弥散加权磁共振成像(DW-MRI)。排除合并症影响肾脏体积或成分的患者。最终,52例DKD患者纳入横断面分析。肾皮质(ADCcortex)中的ADC,使用十二层同心物体(TLCO)方法测量肾髓质(ADCmedulla)中的ADC以及ADCcortex和ADCmedulla之间的差异(ΔADC)。实质和骨盆的肾室体积来自T2加权MRI。由于失去联系或在随访前诊断出ESRD(n=14),仅有38例DKD患者需要随访(中位时间=8.25年),以研究MR标志物与肾脏结局之间的相关性.主要结果是原发性血清肌酐浓度加倍或ESRD的复合结果。
    ADCcortex在区分具有正常和下降的估计肾小球滤过率(eGFR)的DKD方面表现优于ADCmedulla,ΔADC和肾室体积的AUC为0.904(敏感性为83%,特异性为91%),与临床生物标志物eGFR和蛋白尿中度相关(P<0.05)。Cox生存分析表明,ADCcortex而不是ΔADC是肾脏结局的预测因子,其风险比为3.4(95%CI:1.1-10.2,P<0.05),与基线eGFR和蛋白尿无关。
    ADCcortex是诊断和预测DKD肾功能下降的有价值的影像学标志物。
    UNASSIGNED: Diabetic kidney disease (DKD) is the leading cause of end-stage renal disease (ESRD). There are unmet needs for noninvasive diagnosis and prognosis prediction of DKD in clinical practice. This study examines the diagnostic and prognostic value of magnetic resonance (MR) markers of renal compartment volume and the apparent diffusion coefficient (ADC) for mild, moderate, and severe DKD.
    UNASSIGNED: This study was registered at the Chinese Clinical Trial Registry Center (registration number: ChiCTR-RRC-17012687). Sixty-seven DKD patients were prospectively randomly enrolled and underwent clinical examination and diffusion-weighted magnetic resonance imaging (DW-MRI). Patients with comorbidities that affected renal volumes or components were excluded. Ultimately, 52 DKD patients were included in the cross-sectional analysis. The ADC in the renal cortex (ADCcortex), ADC in the renal medulla (ADCmedulla) and difference between ADCcortex and ADCmedulla (ΔADC) were measured using a twelve-layer concentric objects (TLCO) approach. Renal compartment volumes of the parenchyma and pelvis were derived from T2-weighted MRI. Due to lost contact or ESRD diagnosed before follow-up (n=14), only 38 DKD patients remained for follow-up (median period =8.25 years) to investigate the correlations between MR markers and renal outcomes. The primary outcomes were the composite of doubling of the primary serum creatinine concentration or ESRD.
    UNASSIGNED: ADCcortex presented superior performance in discriminating DKD with normal and declined estimated glomerular filtration rate (eGFR) over ADCmedulla, ΔADC and renal compartment volumes with an AUC of 0.904 (sensitivity of 83% and specificity of 91%) and was moderately correlated with the clinical biomarkers eGFR and proteinuria (P<0.05). The Cox survival analysis demonstrated that ADCcortex rather than ΔADC is a predictor of renal outcomes with a hazard ratio of 3.4 (95% CI: 1.1-10.2, P<0.05) independent of baseline eGFR and proteinuria.
    UNASSIGNED: ADCcortex is a valuable imaging marker for the diagnosis and prediction of renal function decline in DKD.
    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:危重患者的急性肾损伤(AKI)的肾脏结局差,死亡率高。肾内微循环和组织氧合的变化目前被认为是AKI发生和发展的重要病理生理机制。本研究旨在探讨经活检证实的AKI患者的超声造影(CEUS)参数的特点,并检查这些标志物对肾脏结局的预测价值。
    方法:这项前瞻性观察性研究将招募符合KDIGO(肾脏疾病:改善全球结果)标准的AKI患者。所有患者均接受肾脏活检,并确认病理性肾小管间质性肾病。CEUS检查将在活检后0、4和12周进行,以监测肾脏微循环。血清肌酐下降的百分比,4周和12周eGFR(估计肾小球滤过率)也将作为肾脏预后进行审查。将分析CEUS参数与临床和病理标志物的关系。我们执行一个lassologit过程来选择潜在的影响变量,包括临床,实验室指标和CEUS标记,要包含在逻辑回归模型中,并检查他们对AKI结果的预测性能。
    结论:如果我们能够证明CEUS衍生参数有助于AKI的诊断和预后,患者的生活质量将得到改善,医疗费用将降低。
    背景:本研究于2021年12月31日在中国医学研究注册信息系统(https://61.49.19.26/login)上进行了回顾性注册:MR-11-22-003,503。本研究已获得北京大学第一医院伦理与科研部批准。
    Acute kidney injury (AKI) in critically ill patients has poor renal outcome with high mortality. Changes in intra-renal microcirculation and tissue oxygenation are currently considered essential pathophysiological mechanisms to the development and progression of AKI. This study aims to investigate the characteristics of contrast-enhanced ultrasonography (CEUS) derived parameters in biopsy-proven AKI patients, and examine the predictive value of these markers for renal outcome.
    This prospective observational study will enroll AKI patients who are diagnosed and staging following KDIGO (Kidney Disease: Improving Global Outcomes) criteria. All patients undergo a kidney biopsy and pathological tubulointerstitial nephropathy is confirmed. The CEUS examination will be performed at 0, 4 and 12 weeks after biopsy to monitor renal microcirculation. The percentage decrease of serum creatinine, 4-week and 12-week eGFR (estimated glomerular filtration rate) will also be reviewed as renal prognosis. The relationship of CEUS parameters with clinical and pathological markers will be analyzed. We perform a lassologit procedure to select potential affecting variables, including clinical, laboratory indexes and CEUS markers, to be included in the logistic regression model, and examine their predictive performance to AKI outcomes.
    If we are able to show that CEUS derived parameters contribute to diagnosis and prognosis of AKI, the quality of life of patients will be improved while healthcare costs will be reduced.
    This study is retrospectively registered on the Chinese Medical Research Registration information System( https://61.49.19.26/login ) on December 31, 2021: MR-11-22-003,503. This study has been approved by the Ethics and Scientific Research Department of Peking University First Hospital.
    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
    最先进的非侵入性膀胱癌(BLCA)诊断方法存在诸如低敏感性和特异性等缺点,无法区分高(HG)和低级别(LG)肿瘤,以及无法区分肌肉浸润性膀胱癌(MIBC)和非肌肉浸润性膀胱癌(NMIBC)。这项研究调查了BLCA的整个DNA甲基化(DNAm)景观的全面表征,以确定BLCA的非侵入性诊断的相关生物标志物。
    共有来自224个捐献者的304个样本被纳入这个多中心,前瞻性队列研究。在32个肿瘤组织和12个正常尿液样品中,通过全基因组亚硫酸氢盐测序进行了BLCA特异性DNAm签名发现。开发了针对BLCA特异性DNAm特征的靶向测序测定法,以针对正常尿液对肿瘤组织进行分类。或者MIBC反对NMIBC。以双盲方式对259个尿样进行靶向测序进行独立验证,以确定基于DNAm的分类模型的临床诊断和预后价值。具有BLCA特异性DNAm特征的基因组区域的功能通过生物学测定进行了验证。病理与尿液肿瘤DNA(循环肿瘤DNA[ctDNA])甲基化的一致性,我们测量了基因组突变或其他最先进的诊断方法.
    全基因组DNAm图谱可以准确地将LG肿瘤与HG肿瘤分类(LGNMIBC与HGNMIBC:p=.038;LGNMIBC与HGMIBC,p=.00032;HGNMIBC与HGMIBC:p=.82;学生t检验)。总的来说,DNAm谱区分MIBC与NMIBC和正常尿液。基于靶向测序的DNAm特征分类器可以准确地将LGNMIBC组织与HGMIBC分类,并且可以在不到0.5%的检测极限下检测尿液中的肿瘤。在肿瘤组织中,DNAm准确地对病理进行分类,因此优于基因组突变或RNA表达谱。在独立验证队列中,术前尿液ctDNA甲基化优于荧光原位杂交(FISH)检测HGBLCA(n=54),灵敏度为100%(95%CI:82.5%-100%)和LGBLCA(n=26),灵敏度为62%(95%CI:51.3%-72.7%),两者均为100%特异性(非BLCA:n=72;95%CI:84.1%-100%)。术前尿液ctDNA甲基化特征与病理相关并预测复发和转移。手术后尿液ctDNA甲基化(n=61)准确预测180天内无复发生存率,100%的准确性。
    随着BLCA特定的DNAm签名的发现,ctDNA甲基化的靶向测序优于FISH和DNA突变检测肿瘤,预测复发并做出预测。
    State-of-art non-invasive diagnosis processes for bladder cancer (BLCA) harbour shortcomings such as low sensitivity and specificity, unable to distinguish between high- (HG) and low-grade (LG) tumours, as well as inability to differentiate muscle-invasive bladder cancer (MIBC) and non-muscle-invasive bladder cancer (NMIBC). This study investigates a comprehensive characterization of the entire DNA methylation (DNAm) landscape of BLCA to determine the relevant biomarkers for the non-invasive diagnosis of BLCA.
    A total of 304 samples from 224 donors were enrolled in this multi-centre, prospective cohort study. BLCA-specific DNAm signature discovery was carried out with genome-wide bisulfite sequencing in 32 tumour tissues and 12 normal urine samples. A targeted sequencing assay for BLCA-specific DNAm signatures was developed to categorize tumour tissue against normal urine, or MIBC against NMIBC. Independent validation was performed with targeted sequencing of 259 urine samples in a double-blinded manner to determine the clinical diagnosis and prognosis value of DNAm-based classification models. Functions of genomic region harbouring BLCA-specific DNAm signature were validated with biological assays. Concordances of pathology to urine tumour DNA (circulating tumour DNA [ctDNA]) methylation, genomic mutations or other state-of-the-art diagnosis methods were measured.
    Genome-wide DNAm profile could accurately classify LG tumour from HG tumour (LG NMIBC vs. HG NMIBC: p = .038; LG NMIBC vs. HG MIBC, p = .00032; HG NMIBC vs. HG MIBC: p = .82; Student\'s t-test). Overall, the DNAm profile distinguishes MIBC from NMIBC and normal urine. Targeted-sequencing-based DNAm signature classifiers accurately classify LG NMIBC tissues from HG MIBC and could detect tumours in urine at a limit of detection of less than .5%. In tumour tissues, DNAm accurately classifies pathology, thus outperforming genomic mutation or RNA expression profiles. In the independent validation cohort, pre-surgery urine ctDNA methylation outperforms fluorescence in situ hybridization (FISH) assay to detect HG BLCA (n = 54) with 100% sensitivity (95% CI: 82.5%-100%) and LG BLCA (n = 26) with 62% sensitivity (95% CI: 51.3%-72.7%), both at 100% specificity (non-BLCA: n = 72; 95% CI: 84.1%-100%). Pre-surgery urine ctDNA methylation signature correlates with pathology and predicts recurrence and metastasis. Post-surgery urine ctDNA methylation (n = 61) accurately predicts recurrence-free survival within 180 days, with 100% accuracy.
    With the discovery of BLCA-specific DNAm signatures, targeted sequencing of ctDNA methylation outperforms FISH and DNA mutation to detect tumours, predict recurrence and make prognoses.
    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
    据报道,胰岛素样生长因子结合蛋白3(IGFBP3)与某些癌症的风险有关。在这里,我们关注血清IGFBP3作为食管鳞癌(ESCC)诊断和预后的可能生物标志物。
    酶联免疫吸附测定(ELISA)用于测量包括136名ESCC患者和119名正常对照的训练队列以及55名ESCC患者和42名正常对照的验证队列中的血清IGFBP3水平。使用受试者工作特征曲线(ROC)评估诊断价值。Cox比例风险模型用于选择生存列线图构建的因素。
    早期ESCC或ESCC患者的血清IGFBP3水平明显低于正常对照组(p<0.05)。血清IGFBP3诊断ESCC的特异性和敏感性分别为95.80%和50.00%,分别,训练队列的ROC曲线下面积(AUC)为0.788。在验证队列中观察到类似的结果(88.10%,38.18%,和0.710)。重要的是,血清IGFBP3也可以区分早期ESCC和对照组(95.80%,52.54%,0.777和88.10%,36.36%,0.695在培训和验证队列中,分别)。此外,Cox多因素分析显示血清IGFBP3是影响预后的独立危险因素(HR=2.599,p=0.002)。较低的血清IGFBP3水平与总生存率降低相关(p<0.05)。基于血清IGFBP3,TNM分期的列线图,肿瘤大小改善了ESCC的预后预测,一致性指数为0.715。
    我们证明血清IGFBP3是ESCC诊断和预后的潜在生物标志物。同时,列线图可能有助于预测ESCC的预后。关键信息血清IGFBP3显示在食管鳞状细胞癌的早期诊断价值与独立队列验证。此外,血清IGFBP3被确定为独立的预后危险因素,用于构建食管鳞状细胞癌预后改善的列线图。
    UNASSIGNED: Insulin-like growth factor binding protein-3 (IGFBP3) has been reported to be related to the risk of some cancers. Here we focussed on serum IGFBP3 as a possible biomarker of diagnosis and prognosis for oesophageal squamous carcinoma (ESCC).
    UNASSIGNED: Enzyme-linked immunosorbent assay (ELISA) was used to measure the serum IGFBP3 level in the training cohort including 136 ESCC patients and 119 normal controls and the validation cohort with 55 ESCC patients and 42 normal controls. The receiver operating characteristics curve (ROC) was used to assess the diagnosis value. Cox proportional hazards model was applied to select factors for survival nomogram construction.
    UNASSIGNED: Serum IGFBP3 levels were significantly lower in early-stage ESCC or ESCC patients than those in normal controls (p < .05). The specificity and sensitivity of serum IGFBP3 for the diagnosis of ESCC were 95.80% and 50.00%, respectively, with the area under the ROC curve (AUC) of 0.788 in the training cohort. Similar results were observed in the validation cohort (88.10%, 38.18%, and 0.710). Importantly, serum IGFBP3 could also differentiate early-stage ESCC from controls (95.80%, 52.54%, 0.777 and 88.10%, 36.36%, 0.695 in training and validation cohorts, respectively). Furthermore, Cox multivariate analysis revealed that serum IGFBP3 was an independent prognostic risk factor (HR = 2.599, p = .002). Lower serum IGFBP3 level was correlated with reduced overall survival (p < .05). Nomogram based on serum IGFBP3, TNM stage, and tumour size improved the prognostic prediction of ESCC with a concordance index of 0.715.
    UNASSIGNED: We demonstrated that serum IGFBP3 was a potential biomarker of diagnosis and prognosis for ESCC. Meanwhile, the nomogram might help predict the prognosis of ESCC. Key MessageSerum IGFBP3 showed early diagnostic value in oesophageal squamous cell carcinoma with independent cohort validation. Moreover, serum IGFBP3 was identified as an independent prognostic risk factor, which was used to construct a nomogram with improved prognosis ability in oesophageal squamous cell carcinoma.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

公众号