Prognostic biomarkers

预后生物标志物
  • 文章类型: Journal Article
    这项研究检查了雌激素化合物如双酚A(BPA)的影响,雌二醇(E2),和玉米赤霉烯酮(ZEA)对人类卵巢癌,专注于构建风险模型,进行基因集变异分析(GSVA),并评估免疫浸润。差异基因表达分析确定了暴露于BPA的人卵巢细胞中980个共享的差异表达基因(DEG),E2和ZEA,表明核糖体生物发生和RNA加工的破坏。使用癌症基因组图谱卵巢癌(TCGA-OV)数据集,开发了基于最小绝对收缩和选择算子(LASSO)的风险模型,其中包含预后基因4-羟基苯基丙酮酸双加氧酶样(HPDL),Thy-1细胞表面抗原(THY1),和肽酶抑制剂3(PI3)。该模型有效地将卵巢癌患者分为高风险和低风险类别,显示总生存率的显著差异,疾病特异性生存,和无进展生存期。GSVA分析将HPDL表达与细胞周期相关的途径联系起来,DNA损伤,修复,而THY1和PI3与细胞凋亡有关,缺氧,和增殖途径。免疫浸润分析显示HPDL高表达组和低表达组不同的免疫细胞谱,THY1和PI3,表明它们对肿瘤微环境的影响。研究结果表明,雌激素化合物显着改变卵巢癌的基因表达和致癌途径。整合HPDL的风险模型,THY1和PI3提供了一个强大的预后工具,通过GSVA和免疫浸润分析,可以深入了解这些基因与肿瘤微环境之间的相互作用,建议个性化治疗的潜在目标。
    This study examines the impact of estrogenic compounds like bisphenol A (BPA), estradiol (E2), and zearalenone (ZEA) on human ovarian cancer, focusing on constructing a risk model, conducting Gene Set Variation Analysis (GSVA), and evaluating immune infiltration. Differential gene expression analysis identified 980 shared differentially expressed genes (DEGs) in human ovarian cells exposed to BPA, E2, and ZEA, indicating disruptions in ribosome biogenesis and RNA processing. Using the Cancer Genome Atlas Ovarian Cancer (TCGA-OV) dataset, a least absolute shrinkage and selection operator (LASSO)-based risk model was developed incorporating prognostic genes 4-Hydroxyphenylpyruvate Dioxygenase Like (HPDL), Thy-1 Cell Surface Antigen (THY1), and Peptidase Inhibitor 3 (PI3). This model effectively stratified ovarian cancer patients into high-risk and low-risk categories, showing significant differences in overall survival, disease-specific survival, and progression-free survival. GSVA analysis linked HPDL expression to pathways related to the cell cycle, DNA damage, and repair, while THY1 and PI3 were associated with apoptosis, hypoxia, and proliferation pathways. Immune infiltration analysis revealed distinct immune cell profiles for high and low expression groups of HPDL, THY1, and PI3, indicating their influence on the tumor microenvironment. The findings demonstrate that estrogenic compounds significantly alter gene expression and oncogenic pathways in ovarian cancer. The risk model integrating HPDL, THY1, and PI3 offers a strong prognostic tool, with GSVA and immune infiltration analyses providing insights into the interplay between these genes and the tumor microenvironment, suggesting potential targets for personalized therapies.
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  • 文章类型: Journal Article
    胆管癌(CCA)是一种异质性和侵袭性恶性肿瘤,治疗选择有限且预后不良。可靠的预后生物标志物的鉴定和对分子亚型的更深入理解对于靶向治疗的开发和患者预后的改善至关重要。这项研究旨在揭示CCA中的氧化应激相关基因(ORGs),并使用来自癌症基因组图谱(TCGA)的综合转录组学分析开发预后风险模型。通过LASSO回归分析,我们鉴定了与预后相关的ORGs,并构建了由6个ORGs组成的预后特征.该特征显示了在生存分析和ROC曲线评估中的强预测性能。功能富集和GSEA分析揭示了不同风险组之间免疫相关途径的显着富集。GSVA分析显示高风险亚组的炎症和氧化应激途径活性降低,和xCell结果显示该组中免疫细胞浸润水平较低。此外,免疫检查点基因和免疫相关通路在高危亚组中下调.我们的研究开发了一个独特的预后模型,专注于氧化应激,能够准确预测患者的预后,并为CCA患者的预后提供重要的见解和建议。未来的研究应旨在在临床环境中验证这些发现,并进一步探索氧化应激途径中的治疗靶标。
    Cholangiocarcinoma (CCA) is a heterogeneous and aggressive malignancy with limited therapeutic options and poor prognosis. The identification of reliable prognostic biomarkers and a deeper understanding of the molecular subtypes are critical for the development of targeted therapies and improvement of patient outcomes. This study aims to uncover oxidative stress-related genes (ORGs) in CCA and develop a prognostic risk model using comprehensive transcriptomic analysis from The Cancer Genome Atlas (TCGA). Through LASSO regression analysis, we identified prognosis-related ORGs and constructed a prognostic signature consisting of six ORGs. This signature demonstrated strong predictive performance in survival analysis and ROC curve assessment. Functional enrichment and GSEA analyses revealed significant enrichment of immune-related pathways among different risk groups. GSVA analysis indicated reduced activity in inflammation and oxidative stress pathways in the high-risk subgroup, and xCell results showed lower immune cell infiltration levels in this group. Additionally, immune checkpoint genes and immune-related pathways were downregulated in the high-risk subgroup. Our research has developed a unique prognostic model focusing on oxidative stress, enabling accurate forecasting of patient outcomes and providing crucial insights and recommendations for the prognosis of individuals with CCA. Future studies should aim to validate these findings in clinical settings and further explore therapeutic targets within oxidative stress pathways.
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  • 文章类型: Journal Article
    MDSC(骨髓来源的抑制细胞)对于癌症中的免疫系统逃避至关重要。它们在外周血和肿瘤微环境中积累,抑制T细胞等免疫细胞,自然杀伤细胞和树突状细胞。它们通过分泌细胞因子和生长因子来促进肿瘤血管生成和转移,并有助于促进肿瘤的环境。MDSC在癌症患者中的积累与不良预后和对各种癌症疗法的抗性有关。靶向MDSCs及其免疫抑制机制可能通过开发抑制MDSC功能的药物来改善治疗结果并增强免疫监视,通过防止它们的积累和破坏促进肿瘤的环境。这篇综述详细概述了MDSC在癌症中的研究及其发展和功能的调节。MDSC作为不同类型癌症的预后和预测生物标志物的相关性,详细讨论了靶向MDSCs的治疗方法的最新进展。
    MDSCs (myeloid-derived suppressor cells) are crucial for immune system evasion in cancer. They accumulate in peripheral blood and tumor microenvironment, suppressing immune cells like T-cells, natural killer cells and dendritic cells. They promote tumor angiogenesis and metastasis by secreting cytokines and growth factors and contribute to a tumor-promoting environment. The accumulation of MDSCs in cancer patients has been linked to poor prognosis and resistance to various cancer therapies. Targeting MDSCs and their immunosuppressive mechanisms may improve treatment outcomes and enhance immune surveillance by developing drugs that inhibit MDSC function, by preventing their accumulation and by disrupting the tumor-promoting environment. This review presents a detailed overview of the MDSC research in cancer with regulation of their development and function. The relevance of MDSC as a prognostic and predictive biomarker in different types of cancers, along with recent advancements on the therapeutic approaches to target MDSCs are discussed in detail.
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  • 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.
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  • 文章类型: Journal Article
    射血分数保留的心力衰竭(HFpEF)代表了一种复杂的临床综合征,通常很难使用可用的工具进行诊断。随着这种疾病的全球负担不断增加,超过心力衰竭的患病率,降低射血分数,在过去的几年里,努力集中在使用大量循环生物标志物优化诊断和预后途径上.在10多年前HFpEF发展范式出现之后,提示多种合并症对心肌结构和功能的影响,已经表征了HFpEF的几种表型,试图为每个不同的病理生理途径找到理想的生物标志物。承认利钠肽的局限性,已经评估了数百种潜在的生物标志物,其中一些展示了令人鼓舞的结果。其中,可溶性抑制肿瘤发生-2反映心肌重塑,生长分化因子15作为炎症和蛋白尿的标志,作为肾功能不全或,最近,几个循环microRNA已经证明了它们的增量价值。随着HFpEF中新兴生物标志物的数量迅速扩大,在这次审查中,我们旨在探索与HFpEF关键病理生理机制相关的最有希望的可用生物标志物,概述它们对诊断的效用,风险分层和人群筛查,以及它们的局限性。
    Heart failure with preserved ejection fraction (HFpEF) represents a complex clinical syndrome, often very difficult to diagnose using the available tools. As the global burden of this disease is constantly growing, surpassing the prevalence of heart failure with reduced ejection fraction, during the last few years, efforts have focused on optimizing the diagnostic and prognostic pathways using an immense panel of circulating biomarkers. After the paradigm of HFpEF development emerged more than 10 years ago, suggesting the impact of multiple comorbidities on myocardial structure and function, several phenotypes of HFpEF have been characterized, with an attempt to find an ideal biomarker for each distinct pathophysiological pathway. Acknowledging the limitations of natriuretic peptides, hundreds of potential biomarkers have been evaluated, some of them demonstrating encouraging results. Among these, soluble suppression of tumorigenesis-2 reflecting myocardial remodeling, growth differentiation factor 15 as a marker of inflammation and albuminuria as a result of kidney dysfunction or, more recently, several circulating microRNAs have proved their incremental value. As the number of emerging biomarkers in HFpEF is rapidly expanding, in this review, we aim to explore the most promising available biomarkers linked to key pathophysiological mechanisms in HFpEF, outlining their utility for diagnosis, risk stratification and population screening, as well as their limitations.
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  • 文章类型: Journal Article
    口腔鳞状细胞癌(OSCC)的预后极差。最近的研究表明,线粒体自噬相关基因(MRGs)与肿瘤的发生、发展密切相关,但是它们在口腔癌中的作用尚未得到解释。我们对从基因表达综合(GEO)数据集和癌症基因组图谱(TCGA)数据库检索的整合单细胞和批量RNA测序(RNA-seq)数据进行了全面分析。将多种方法结合起来,以全面了解OSCC的遗传表达模式和生物学,比如伪时间序列的分析,CellChat细胞通信,免疫浸润,基因本体论(GO),LASSOCox回归,基因集变异分析(GSVA),京都基因和基因组百科全书(KEGG),基因集富集分析(GSEA),肿瘤突变负担(TMB)和药物敏感性评估。这项研究的结果表明,NK细胞中MRG的活性明显高于OSCC中的其他细胞。使用与线粒体自噬密切相关的12个候选基因开发了可靠的预后模型。T级,N分期和风险评分是独立的预后因素。在不同的风险组中观察到不同的富集途径和免疫细胞。值得注意的是,低危患者对化疗反应更敏感.此外,结合风险评分和临床特征,建立了具有良好预测能力的列线图模型。MRGs的活性表明了开发新的靶向疗法的潜力。稳健预后模型的构建也为OSCC患者的个体化预测和临床决策提供了参考价值。
    Oral squamous cell carcinoma (OSCC) has an extremely poor prognosis. Recent studies have suggested that mitophagy-related genes (MRGs) are closely correlated with the development and occurrence of cancer, but the role they play in oral cancer has not yet been explained.We conducted a comprehensive analysis of integrated single-cell and bulk RNA sequencing (RNA-seq) data retrieved from Gene Expression Omnibus (GEO) datasets and The Cancer Genome Atlas (TCGA) database. Multiple methods were combined to provide a comprehensive understanding of the genetic expression patterns and biology of OSCC, such as analysis of pseudotime series, CellChat cell communication, immune infiltration, Gene Ontology (GO), LASSO Cox regression, gene set variation analysis (GSVA), Kyoto Encyclopedia of Genes and Genomes (KEGG), gene set enrichment analysis (GSEA), Tumor Mutation Burden (TMB) and drug sensitivity assessments. The findings of this study demonstrated significantly greater activity of MRGs in NK cells than in other cells in OSCC. A reliable prognostic model was developed using 12 candidate genes strongly associated with mitochondrial autophagy. T stage, N stage and risk score were revealed as independent prognostic factors. Distinctively enriched pathways and immune cells were observed in different risk groups. Notably, low-risk patients were more responsive to chemotherapy. In addition, a nomogram model with excellent predictive ability was established by combining the risk scores and clinical features. The activity of MRGs suggest the potential for the development of new targeted therapies. The construction of a robust prognostic model also provides reference value for individualized prediction and clinical decision-making in patients with OSCC.
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  • 文章类型: Journal Article
    随着人们越来越认识到将预后标志物纳入肌萎缩侧索硬化症(ALS)试验设计和分析计划的价值,迫切需要了解流行的临床和生化标志物中哪些具有真正的价值,以及如何最佳地使用它们。
    通过多中心表型-基因型-生物标志物研究(clinicaltrials.gov:NCT02327845)招募的ALS患者子集根据符合共同试验资格标准被确定为“试验样”。临床表型分析由在相关评估中受过培训的评估者进行。血清神经丝光(NfL)和磷酸化神经丝重(pNfH),尿p75ECD,我们评估了血浆microRNA-181以及一系列生化和临床指标的预后价值.通过ALS功能评定量表修订(ALSFRS-R)评分的随机斜率混合模型估计与功能进展的关联。通过对数秩检验和Cox比例风险回归估计与生存的关联。估计了在假设试验中调整给定生物标志物的潜在样本量节省。
    基线血清NfL是一种强大的预后生物标志物,预测生存率和ALSFRS-R下降率。血清NfL<40pg/ml和>100pg/ml对应于未来的ALSFRS-R斜率~0.5和1.5点/月,分别。血清NfL还增加了最佳临床预测因子的价值,由欧洲网络封装以治愈ALS(ENCALS)预测分数。在功能衰退模型中,NfL的添加比单独包含临床预测因子或ENCALS评分所获得的样本节省25%。血清pNfH的预后价值,尿p75ECD,血浆miR-181ab更为有限。
    在考虑的众多生物标志物中,只有血液NfL增加了ENCALS预测模型的价值,应纳入所有正在进行和未来的ALS试验的分析计划.NfL的定义阈值也可以用于试验设计,对于富集或分层随机化,提高审判效率。
    NIH(U01-NS107027,U54-NS092091)。ALSA(16-TACL-242)。
    本研究之前的证据:ALS的表型异质性对临床试验提出了挑战,使得在自然变异的噪音中更难以辨别研究药物的治疗效果。预后标记是帮助缓解这一问题的重要工具。许多临床标志物和推定的生物标志物被认为具有预后价值。但是它们的相对效用,特别是当共同考虑时,以及它们使用的实际含义,没有很好的定义。本研究的附加值:使用来自自然史研究的试验样人群,其中收集了临床试验级表型数据和多模态生物标志物数据,我们显示了一部分临床因素,由ENCALS预测模型评分封装,当考虑ALSFRS-R功能下降或永久辅助通气(PAV)/无气管造口生存时,血清神经丝轻链(NfL)是最有效的预后标志物。重要的是,血清NfL即使在调整ENCALS评分后也增加了预后价值,在假设的未来临床试验中,额外节省了27%的样本量。而血清磷酸化神经丝重链(pNfH),尿p75ECD,血浆miR-181ab各自具有一定的预后价值,当与ENCALS评分和血清NfL一起考虑时,只有p75ECD可能会产生额外但适度的样本量节省。所有可用证据的含义:血液NfL是多种使用背景的有效生物标志物。作为预后标志物,它应该与临床预测因子一起使用,如ENCALS预测模型得分,在所有正在进行和未来的ALS临床试验中。尿p75ECD和血浆miR-181ab的效用尚不清楚。血清pNfH,以及血清尿酸,白蛋白,肌酐,和C反应蛋白(CRP),不提供额外的预后信息。
    UNASSIGNED: With increasing recognition of the value of incorporating prognostic markers into amyotrophic lateral sclerosis (ALS) trial design and analysis plans, there is a pressing need to understand which among the prevailing clinical and biochemical markers have real value, and how they can be optimally used.
    UNASSIGNED: A subset of patients with ALS recruited through the multi-center Phenotype-Genotype-Biomarker study (clinicaltrials.gov: NCT02327845) was identified as \"trial-like\" based on meeting common trial eligibility criteria. Clinical phenotyping was performed by evaluators trained in relevant assessments. Serum neurofilament light (NfL) and phosphorylated neurofilament heavy (pNfH), urinary p75ECD, plasma microRNA-181, and an array of biochemical and clinical measures were evaluated for their prognostic value. Associations with functional progression were estimated by random-slopes mixed models of ALS functional rating scale-revised (ALSFRS-R) score. Associations with survival were estimated by log-rank test and Cox proportional hazards regression. Potential sample size savings from adjusting for given biomarkers in a hypothetical trial were estimated.
    UNASSIGNED: Baseline serum NfL is a powerful prognostic biomarker, predicting survival and ALSFRS-R rate of decline. Serum NfL <40pg/ml and >100pg/ml correspond to future ALSFRS-R slopes of ~0.5 and 1.5 points/month, respectively. Serum NfL also adds value to the best available clinical predictors, encapsulated by the European Network to Cure ALS (ENCALS) predictor score. In models of functional decline, the addition of NfL yields ~25% sample size saving above those achieved by inclusion of either clinical predictors or ENCALS score alone. The prognostic value of serum pNfH, urinary p75ECD, and plasma miR-181ab is more limited.
    UNASSIGNED: Among the multitude of biomarkers considered, only blood NfL adds value to the ENCALS prediction model and should be incorporated into analysis plans for all ongoing and future ALS trials. Defined thresholds of NfL might also be used in trial design, for enrichment or stratified randomisation, to improve trial efficiency.
    UNASSIGNED: NIH (U01-NS107027, U54-NS092091). ALSA (16-TACL-242).
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  • 文章类型: Journal Article
    背景本研究旨在评估改良的格拉斯哥预后评分(mGPS)在转移性结直肠癌(mCRC)患者中的预后意义。方法对在布加勒斯特埃利亚斯大学急诊医院肿瘤科接受治疗和随访的65例诊断为IV期结直肠癌的患者进行回顾性分析,罗马尼亚,从2016年1月到2024年1月。收集患者数据,包括人口统计信息,肿瘤特征,和实验室参数。根据血清白蛋白和C反应蛋白(CRP)水平计算mGPS。患者分为以下三个mGPS类别:0(正常CRP和白蛋白),1(升高的CRP或低白蛋白血症),和2(升高的CRP和低白蛋白血症)。结果在纳入的65例患者中,男性33人(50.8%),女性32人(49.2%),平均年龄63.7岁.根据MGPS,25例(38.5%)患者得分为0分,30例(46.2%)得分为1分,10例(15.4%)得分为2分。中位总生存期(OS)为53个月(95%置信区间(CI)=23.512-82.488),中位无进展生存期(PFS)为23个月(95%CI=19.244-26.756)。尽管在治疗组之间观察到中位PFS和OS的数值差异,这些差异没有统计学意义(PFS:p=0.292;OS:p=0.5).结论mGPS是mCRC的有用预后工具,提供对患者生存结果的见解。然而,我们需要更大样本量的进一步研究来验证这些发现,并阐明mGPS在指导mCRC患者临床决策中的作用.
    Background This study aims to evaluate the prognostic significance of the modified Glasgow Prognostic Score (mGPS) in patients with metastatic colorectal cancer (mCRC). Methodology A retrospective analysis was conducted among 65 patients diagnosed with stage IV colorectal cancer who received treatment and follow-up at the Oncology Department of Elias Emergency University Hospital in Bucharest, Romania, from January 2016 to January 2024. Patient data were collected, including demographic information, tumor characteristics, and laboratory parameters. The mGPS was calculated based on serum albumin and C-reactive protein (CRP) levels. Patients were stratified into the following three mGPS categories: 0 (normal CRP and albumin), 1 (elevated CRP or hypoalbuminemia), and 2 (elevated CRP and hypoalbuminemia). Results Of the 65 patients included, 33 (50.8%) were male and 32 (49.2%) were female, with a mean age of 63.7 years. According to mGPS, 25 (38.5%) patients scored 0, 30 (46.2%) scored 1, and 10 (15.4%) scored 2. The median overall survival (OS) was 53 months (95% confidence interval (CI) = 23.512-82.488), and the median progression-free survival (PFS) was 23 months (95% CI = 19.244-26.756). Although numerical differences in the median PFS and OS were observed between treatment groups, these differences were not statistically significant (PFS: p = 0.292; OS: p = 0.5). Conclusions The mGPS is a useful prognostic tool in mCRC, providing insights into patient survival outcomes. However, further studies with larger sample sizes are needed to validate these findings and clarify the role of mGPS in guiding clinical decision-making for mCRC patients.
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  • 文章类型: Journal Article
    背景:胃癌是胃肠道最常见的恶性肿瘤之一,这对人类健康有很大的负面影响。
    目的:CCL趋化因子在多种肿瘤微环境中发挥重要作用;令人惊讶的是,胃癌与CCL趋化因子的关联有限.
    方法:在我们的研究中,我们综合利用了生物信息学分析工具和数据库,如cBioPortal,UALCAN,GEPIA,遗传狂躁症,STRING,和TRRUST阐明CCL趋化因子在胃癌中的临床意义和生物学功能。
    结果:CCL1/3/4/5/7/8/14/15/18/20/21/22/26mRNA表达上调,而CCL2/11/13/16/17/19/23/24/25/28的mRNA表达水平下调。与胃癌病理分期显著相干的趋化因子为CCL2/11/19/21。在胃癌中,CCL趋化因子的表达水平与无病生存率无关,但CCL14的低表达与较长的总生存期显著相关.其中,与CCL趋化因子调节相关的只有10个转录因子(RELA,NFKB1,STAT6,IRF3,REL,SPI1、STAT1、STAT3、JUN和SP1)。CCL趋化因子的主要生物学过程和功能富集是诱导细胞定向迁移。
    结论:这些结果可能表明CCL趋化因子可能是胃癌的免疫治疗靶标和有希望的预后生物标志物。
    BACKGROUND: Gastric cancer is one of the most common malignant tumours of the gastrointestinal tract, which has a significant negative impact on human health.
    OBJECTIVE: CCL chemokines play important roles in a variety of tumor microenvironments; nevertheless, gastric cancer has surprisingly limited associations with CCL chemokines.
    METHODS: In our study, we comprehensively utilized bioinformatics analysis tools and databases such as cBioPortal, UALCAN, GEPIA, GeneMANIA, STRING, and TRRUST to clarify the clinical significance and biology function of CCL chemokines in gastric cancer.
    RESULTS: The mRNA expression levels of CCL1/3/4/5/7/8/14/15/18/20/21/22/26 were up-regulated, while the mRNA expression levels of CCL2/11/13/16/17/19/23/24/25/28 were down-regulated. The chemokine significantly associated with the pathological stage of gastric cancer is CCL2/11/19/21. In gastric cancer, the expression level of CCL chemokines was not associated with disease-free survival, but low expression of CCL14 was significantly associated with longer overall survival. Therein, associated with the regulation of CCL chemokines are only 10 transcription factors (RELA, NFKB1, STAT6, IRF3, REL, SPI1, STAT1, STAT3, JUN and SP1). The major biological process and functional enrichment of CCL chemokines are to induce cell-directed migration.
    CONCLUSIONS: These results may indicate that CCL chemokines may be immunotherapeutic targets and promising prognostic biomarkers for gastric cancer.
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  • 文章类型: Journal Article
    我们从先前的III期GOIM9902辅助紫杉烷类药物试验中评估了222名淋巴结阳性早期乳腺癌(BC)患者中DNA损伤反应和修复(DDR)生物标志物表达的影响。在64个月的中位随访中,原始研究显示,在表柔比星-环磷酰胺(EC)的基础上加用多西他赛(D)后,无病生存期(DFS)或总生存期(OS)无差异.免疫组织化学用于评估DDR磷蛋白(pATM,pATR,pCHK1,γH2AX,pRPA32和pWEE1)在肿瘤组织中,并通过Cox弹性网模型评估其与临床结局的相关性.在234个月的长期随访中,我们证实接受EC治疗的患者和接受D→EC的患者在DFS或OS方面没有显著差异.DDR风险评分,由ATM和ATR表达式反向驱动,作为DFS(HR=0.41,p<0.0001)和OS(HR=0.61,p=0.046)的独立预后因素。在公共辅助BC队列中进一步验证仅可能用于ATM,确认其保护作用。总的来说,我们的研究结果证实了DDR通路在BC预后中的潜在作用,以及在形成倡导综合方法的治疗策略中的作用,将分子标志物与临床病理因素相结合。
    We assessed the impact of DNA damage response and repair (DDR) biomarker expressions in 222 node-positive early breast cancer (BC) patients from a previous Phase III GOIM 9902 trial of adjuvant taxanes. At a median follow-up of 64 months, the original study showed no disease-free survival (DFS) or overall survival (OS) differences with the addition of docetaxel (D) to epirubicine-cyclophosphamide (EC). Immunohistochemistry was employed to assess the expression of DDR phosphoproteins (pATM, pATR, pCHK1, γH2AX, pRPA32, and pWEE1) in tumor tissue, and their association with clinical outcomes was evaluated through the Cox elastic net model. Over an extended follow-up of 234 months, we confirmed no significant differences in DFS or OS between patients treated with EC and those receiving D → EC. A DDR risk score, inversely driven by ATM and ATR expression, emerged as an independent prognostic factor for both DFS (HR = 0.41, p < 0.0001) and OS (HR = 0.61, p = 0.046). Further validation in a public adjuvant BC cohort was possible only for ATM, confirming its protective role. Overall, our findings confirm the potential role of the DDR pathway in BC prognostication and in shaping treatment strategies advocating for an integrated approach, combining molecular markers with clinical-pathological factors.
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