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The Role of microRNAs in Hepatocellular Cancer: A Narrative Review Focused on Tumor Microenvironment and Drug Resistance 微RNA在肝细胞癌中的作用:以肿瘤微环境和耐药性为重点的叙述性综述
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-18 DOI: 10.1177/15330338241239188
Ali Tavakoli Pirzaman, Ali Alishah, Bahareh Babajani, Pouyan Ebrahimi, Seyyed Ali Sheikhi, Farhad Moosaei, Amirhossein Salarfar, Shahrbanoo Doostmohamadian, Sohrab Kazemi
Globally, hepatic cancer ranks fourth in terms of cancer-related mortality and is the sixth most frequent kind of cancer. Around 80% of liver cancers are hepatocellular carcinomas (HCC), which are the leading cause of cancer death. It is well known that HCC may develop resistance to the available chemotherapy treatments very fast. One of the biggest obstacles in providing cancer patients with appropriate care is drug resistance. According to reports, more than 90% of cancer-specific fatalities are caused by treatment resistance. By binding to the 3'-untranslated region of target messenger RNAs (mRNAs), microRNAs (miRNAs), a group of noncoding RNAs which are around 17 to 25 nucleotides long, regulate target gene expression. Moreover, they play role in the control of signaling pathways, cell proliferation, and cell death. As a result, miRNAs play an important role in the microenvironment of HCC by changing immune phenotypes, hypoxic conditions, and acidification, as well as angiogenesis and extracellular matrix components. Moreover, changes in miRNA levels in HCC can effectively resist cancer cells to chemotherapy by affecting various cellular processes such as autophagy, apoptosis, and membrane transporter activity. In the current work, we narratively reviewed the role of miRNAs in HCC, with a special focus on tumor microenvironment and drug resistance.
在全球范围内,肝癌在癌症相关死亡率中排名第四,是第六大常见癌症。约 80% 的肝癌是肝细胞癌(HCC),它是癌症死亡的主要原因。众所周知,肝细胞癌可能很快对现有的化疗产生抗药性。抗药性是为癌症患者提供适当治疗的最大障碍之一。据报道,超过 90% 的癌症死亡病例都是由耐药性引起的。微小核糖核酸(miRNA)是一组长度约为 17 至 25 个核苷酸的非编码核糖核酸,通过与目标信使核糖核酸(mRNA)的 3'- 非翻译区结合,调节目标基因的表达。此外,它们还在信号通路、细胞增殖和细胞死亡的控制中发挥作用。因此,miRNA 通过改变免疫表型、缺氧条件和酸化,以及血管生成和细胞外基质成分,在 HCC 的微环境中发挥着重要作用。此外,HCC 中 miRNA 水平的变化可影响自噬、凋亡和膜转运体活性等多种细胞过程,从而有效抵抗化疗。在目前的研究中,我们综述了 miRNA 在 HCC 中的作用,并特别关注肿瘤微环境和耐药性。
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引用次数: 0
Clinical and Radiological Factors for Predicting Clinically Significant Prostate Cancer in Biopsy-Naive Patients With PI-RADS 3 Lesions 用于预测有 PI-RADS 3 病变的无活检患者中具有临床意义的前列腺癌的临床和放射学因素
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-17 DOI: 10.1177/15330338241246636
Zhiyu Zhang, Can Hu, Yuxin Lin, Ouyang Song, Dongkui Gong, Xuefeng Zhang, Nan Wang
ObjectiveThis study intends to examine the anticipatory power of clinical and radiological parameters in detecting clinically significant prostate cancer in patients demonstrating Prostate Imaging Reporting and Data System 3 lesions.MethodsThis was a retrospective study. The study included participation from 453 patients at the First Affiliated Hospital of Soochow University, sampled between September 2017 through August 2022. Each patient underwent a routine 12-core prostate biopsy followed by a 2 to 5 core fusion-targeted biopsy. We utilized both univariate and multivariate logistic regression analyses to identify the parameters that have a correlation with clinically significant prostate cancer. The predictive ability of these parameters was assessed using the receiver operating characteristic curve, leading to the creation of a nomogram.ResultsClinically significant prostate cancer was detected in 68 out of 453 patients with Prostate Imaging Reporting and Data System 3 lesions (15.01%). Among Prostate Imaging Reporting and Data System 3a and 3b patients, 4.78% (3.09% of the total) and 33.75% (11.92% of the total), respectively, had clinically significant prostate cancer. Systematic biopsy improved prostate cancer and clinically significant prostate cancer detection rates by 7.72% and 3.09%, respectively, compared to targeted biopsy. Without systematic biopsy, there would be an undetected rate of 15% for prostate cancer and 8.13% for clinically significant prostate cancer in Prostate Imaging Reporting and Data System 3b patients. Several clinical parameters, including age, prostate-specific antigen density, lesion volume, apparent diffusion coefficient, and digital rectal examination, were statistically significant in the logistic regression analysis for clinically significant prostate cancer. The individual diagnostic accuracies of these parameters for clinically significant prostate cancer were 0.648, 0.645, 0.75, 0.763, and 0.7, respectively, but their combined accuracy improved to 0.866. A well-fit nomogram based on the identified risk factors was constructed (χ2 = 10.254, P = .248).ConclusionThe combination of age, prostate-specific antigen density, lesion volume, apparent diffusion coefficient, and digital rectal examination presented a higher diagnostic value for clinically significant prostate cancer than any single parameter in patients with Prostate Imaging Reporting and Data System 3 lesions. Systematic biopsy proved crucial for biopsy-naive patients with Prostate Imaging Reporting and Data System 3 lesions and should not be omitted.
目的本研究旨在探讨临床和放射学参数在发现前列腺影像报告和数据系统3病变患者中具有临床意义的前列腺癌的预测能力。研究纳入了苏州大学附属第一医院453名患者的参与,抽样时间为2017年9月至2022年8月。每位患者都接受了常规的 12 核前列腺活检,然后进行了 2 至 5 核融合靶向活检。我们利用单变量和多变量逻辑回归分析来确定与临床上显著的前列腺癌相关的参数。结果在 453 例前列腺成像报告和数据系统 3 病变患者中,有 68 例(15.01%)发现了有临床意义的前列腺癌。在前列腺成像报告和数据系统 3a 和 3b 患者中,分别有 4.78% (占总人数的 3.09%)和 33.75% (占总人数的 11.92%)的患者患有有临床意义的前列腺癌。与靶向活检相比,系统性活检将前列腺癌和有临床意义的前列腺癌检出率分别提高了 7.72% 和 3.09%。如果不进行系统性活检,前列腺成像报告和数据系统3b患者的前列腺癌未检出率为15%,有临床意义的前列腺癌未检出率为8.13%。一些临床参数,包括年龄、前列腺特异性抗原密度、病变体积、表观弥散系数和数字直肠检查,在临床重大前列腺癌的逻辑回归分析中具有统计学意义。这些参数对有临床意义的前列腺癌的单项诊断准确率分别为 0.648、0.645、0.75、0.763 和 0.7,但它们的综合准确率提高到 0.866。结论在前列腺成像报告和数据系统 3(Prostate Imaging Reporting and Data System 3)病变患者中,年龄、前列腺特异性抗原密度、病变体积、表观弥散系数和数字直肠检查的组合比任何单一参数对有临床意义的前列腺癌具有更高的诊断价值。对于前列腺成像报告和数据系统 3 病变的无活检患者来说,系统性活检至关重要,不应被忽视。
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引用次数: 0
Predictive Value of NLR and PLR in Driver-Gene-Negative Advanced Non-Small Cell Lung Cancer Treated with PD-1/PD-L1 Inhibitors: A Single Institutional Cohort Study PD-1/PD-L1抑制剂治疗驱动基因阴性晚期非小细胞肺癌的NLR和PLR预测价值:一项单一机构队列研究
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-13 DOI: 10.1177/15330338241246651
Qi Yuan, Chunhua Xu, Wei Wang, Qian Zhang
ObjectiveTo investigate the predictive value of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) for the efficacy and prognosis of programmed cell death-1 (PD-1)/programmed cell death-ligand 1 (PD-L1) inhibitors in driver-gene-negative advanced non-small-cell lung cancer (NSCLC).MethodsA retrospective analysis of 107 advanced NSCLC patients without gene mutations who received PD-1/PD-L1 inhibitors in our hospital from January 2020 to June 2022 was performed. NLR and PLR were collected before PD-1/PD-L1 inhibitors, the optimal cut-off values of NLR and PLR were determined according to the receiver operating characteristic (ROC) curve, and the effects of NLR and PLR on the efficacy of PD-1/PD-L1 inhibitors in advanced NSCLC patients were analyzed.ResultsA total of 107 patients were included in this study. Receiver operating characteristic analysis showed that the optimal cut-off values of NLR and PLR were 3.825, 179, respectively. Kaplan–Meier curve showed that low baseline levels NLR and PLR were associated with an improvement in both progression-free survival (PFS) ( P < .001, < .001, respectively) and overall survival (OS) ( P = .009, .006, respectively). In first-line treatment and non-first-line treatment, low baseline levels NLR and PLR were associated with an improvement in PFS. In multivariate analysis, low baseline NLR and PLR showed a strong association with both better PFS ( P = .011, .027, respectively) and longer OS ( P = .042, .039, respectively).ConclusionLow baseline NLR and PLR levels are significantly associated with better response in advanced NSCLC patients treated with PD-1/PD-L1 inhibitors, which may be indicators to predict the efficacy of immunotherapy in advanced NSCLC with driver-gene-negative.
目的 探讨中性粒细胞与淋巴细胞比值(NLR)和血小板与淋巴细胞比值(PLR)对驱动基因阴性晚期非小细胞肺癌(NSCLC)程序性细胞死亡-1(PD-1)/程序性细胞死亡配体 1(PD-L1)抑制剂疗效和预后的预测价值。方法对2020年1月至2022年6月在我院接受PD-1/PD-L1抑制剂治疗的107例无基因突变的晚期NSCLC患者进行回顾性分析。在使用PD-1/PD-L1抑制剂前收集NLR和PLR,根据接收者操作特征曲线(ROC)确定NLR和PLR的最佳临界值,并分析NLR和PLR对晚期NSCLC患者使用PD-1/PD-L1抑制剂疗效的影响。接收者操作特征分析显示,NLR和PLR的最佳临界值分别为3.825和179。Kaplan-Meier曲线显示,低基线水平的NLR和PLR与无进展生存期(PFS)(P = .001,P = .001)和总生存期(OS)(P = .009,P = .006)的改善相关。在一线治疗和非一线治疗中,低基线水平的NLR和PLR与PFS的改善有关。结论基线NLR和PLR水平较低与PD-1/PD-L1抑制剂治疗的晚期NSCLC患者较好的反应显著相关,这可能是预测驱动基因阴性的晚期NSCLC免疫疗法疗效的指标。
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引用次数: 0
Fibroblast Growth Factor 23 is a Potential Prognostic Biomarker in Uterine Sarcoma 成纤维细胞生长因子 23 是子宫肉瘤的潜在预后生物标记物
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-13 DOI: 10.1177/15330338241245924
Ling Yang, Ying Cai, Yunjia Wang, Yue Huang, Chi Zhang, Hu Ma, Jian-Guo Zhou
BackgroundUterine sarcoma (US) is a highly malignant cancer with poor prognosis and high mortality in women. In this study, we evaluated the expression of human fibroblast growth factor 23 (FGF23) in different US subtypes and the relationship between survival and clinicopathological characteristics.MethodsWe conducted a comparative analysis of FGF23 gene expression in different pathological types of US. Utilizing a cohort from The Cancer Genome Atlas of 57 patients, a 50-patient microarray dataset (GSE119043) from the Gene Expression Omnibus and a Suining cohort of 44 patients, we analyzed gene expression profiles and corresponding clinicopathological information. Immunohistochemistry was used to examine the expression level of FGF23 in four US subtypes. Survival analysis was used to assess the relationship between FGF23 expression and prognosis in US patients.ResultsCompared with uterine normal smooth muscle and uterine leiomyoma, FGF23 expression was significantly upregulated in US and was differentially expressed in four US subtypes. Uterine carcinosarcoma exhibited the highest expression of FGF23 among the subtypes. Survival analysis revealed no correlation between FGF23 expression and either overall survival or progression-free survival in US ( P > 0.05). Similar results were obtained from the validation cohorts. Univariate and multivariate analyses showed no significant correlation between FGF23 expression and the US prognosis. Tumor stage, CA125, and tumor recurrence were independent prognostic factors for survival of US patients.ConclusionFGF23 was highly expressed in US and was promising as a novel potential biomarker for the diagnosis and prognosis of US.
背景子宫肉瘤(US)是一种高度恶性的癌症,女性患者预后差、死亡率高。在这项研究中,我们评估了人成纤维细胞生长因子 23(FGF23)在不同 US 亚型中的表达以及生存率与临床病理特征之间的关系。我们利用癌症基因组图谱(The Cancer Genome Atlas)中的57例患者队列、基因表达总库(Gene Expression Omnibus)中的50例患者微阵列数据集(GSE119043)和44例患者的遂宁队列,分析了基因表达谱和相应的临床病理学信息。免疫组化技术用于检测 FGF23 在四种 US 亚型中的表达水平。结果与子宫正常平滑肌和子宫白肌瘤相比,FGF23在US中的表达明显上调,并且在四种US亚型中存在差异表达。在所有亚型中,子宫癌肉瘤的FGF23表达量最高。生存期分析显示,FGF23的表达与US的总生存期或无进展生存期均无相关性(P >0.05)。验证队列也得出了类似的结果。单变量和多变量分析表明,FGF23的表达与美国的预后无明显相关性。结论FGF23在US中高表达,有望成为US诊断和预后的潜在生物标记物。
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引用次数: 0
Clinical Value of Human Endogenous Retrovirus-H Long Terminal Repeat Associating 2 (HHLA2) in Small Cell Lung Cancer 人类内源性逆转录病毒-H 长末端重复序列关联 2 (HHLA2) 在小细胞肺癌中的临床价值
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-13 DOI: 10.1177/15330338241240683
Xiuqin Zhang, Yan Qin, Xu Chen, Mengrui Xiong, Song Shu
Objective: Human endogenous retrovirus-H long terminal repeat associating 2 (HHLA2) is a new immune checkpoint in the B7 family, and the value of HHLA2 in small cell lung cancer (SCLC) is unknown. Methods: We retrospectively detected HHLA2 expression by immunohistochemistry in SCLC patients. Moreover, plasma biomarkers of SCLC were detected retrospectively. Results: Seventy-four percent of SCLC patients exhibited HHLA2 expression. HHLA2 staining was localised within the nucleus of SCLC cells, while no staining was detected in normal lung tissue specimens. The correlation between HHLA2 expression and clinical factors was also analysed. Limited stage (LS) SCLC was more common than extensive stage (ES) SCLC among patients with HHLA2 staining. SCLC patients without metastasis had higher HHLA2 expression than SCLC patients with metastasis. HHLA2 expression was more frequently detected in the group with a tumour size greater than 5 cm than in the group with a tumour size less than 5 cm. The proportion of patients with HHLA2-positive staining was greater in the stage III and IV SCLC groups than in the stage I and II SCLC groups. A high proportion of SCLC patients with HHLA2-positive staining had a survival time <2 years. Neuron-specific enolase (NSE), CEA and Ki-67 levels were measured. The NSE level in the HHLA2-positive group was significantly greater than that in the HHLA2-negative group. The CEA and Ki-67 levels did not significantly differ between the HHLA2-positive and HHLA2-negative patients, nor were age, sex, smoking status, nodal metastasis status, Karnofsky Performance Scale (KPS) score, or Ki-67 expression score. HHLA2-positive SCLC patients had higher tumour stages and shorter 2-year survival times than HHLA2-negative patients did. Conclusion: The new immune molecule HHLA2 may be an ideal clinical biomarker for predicting SCLC progression and could serve as a new immunotherapy target in SCLC.
目的:人类内源性逆转录病毒-H长末端重复关联2(HHLA2)是B7家族中的一个新的免疫检查点,HHLA2在小细胞肺癌(SCLC)中的价值尚不清楚。研究方法我们通过免疫组化方法回顾性检测了SCLC患者中HHLA2的表达。此外,还回顾性检测了 SCLC 的血浆生物标志物。结果74%的SCLC患者有HHLA2表达。HHLA2染色定位于SCLC细胞核内,而在正常肺组织标本中未检测到染色。研究还分析了HHLA2表达与临床因素之间的相关性。在有HHLA2染色的患者中,局限期(LS)SCLC比广泛期(ES)SCLC更常见。无转移的SCLC患者的HHLA2表达高于有转移的SCLC患者。肿瘤大于 5 厘米的患者比肿瘤小于 5 厘米的患者更常检测到 HHLA2 表达。在III期和IV期SCLC组中,HHLA2染色阳性的患者比例高于I期和II期SCLC组。在HHLA2染色阳性的SCLC患者中,有很高比例的患者存活时间为2年。对神经元特异性烯醇化酶(NSE)、癌胚抗原(CEA)和Ki-67水平进行了测定。HHLA2阳性组的NSE水平明显高于HHLA2阴性组。HHLA2阳性和HHLA2阴性患者的CEA和Ki-67水平无明显差异,年龄、性别、吸烟状况、结节转移状况、卡诺夫斯基表现量表(KPS)评分和Ki-67表达评分也无明显差异。与HHLA2阴性患者相比,HHLA2阳性SCLC患者的肿瘤分期更高,2年生存时间更短。结论新的免疫分子HHLA2可能是预测SCLC进展的理想临床生物标记物,并可作为SCLC的新免疫疗法靶点。
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引用次数: 0
Identification of Novel Cuproptosis-Related Genes Mediating the Prognosis and Immune Microenvironment in Cholangiocarcinoma 鉴定胆管癌预后和免疫微环境的新型杯突相关基因
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-13 DOI: 10.1177/15330338241239139
Qiang Liu, Jianpeng Zhu, Zhicheng Huang, Xiaofeng Zhang, Jianfeng Yang
BackgroundCuproptosis is a novel type of mediated cell death strongly associated with the progression of several cancers and has been implicated as a potential therapeutic target. However, the role of cuproptosis in cholangiocarcinoma for prognostic prediction, subgroup classification, and therapeutic strategies remains largely unknown.MethodsA systematic analysis was conducted among 146 cuproptosis-related genes and clinical information based on independent mRNA and protein datasets to elucidate the potential mechanisms and prognostic prediction value of cuproptosis-related genes. A 10-cuproptosis-related gene prediction model was constructed, and its effects on cholangiocarcinoma prognosis were significantly connected to poor patient survival. Additionally, the expression patterns of our model included genes that were validated with several cholangiocarcinoma cancer cell lines and a normal biliary epithelial cell line.ResultsFirst, a 10-cuproptosis-related gene signature ( ADAM9, ADAM17, ALB, AQP1, CDK1, MT2A, PAM, SOD3, STEAP3, and TMPRSS6) displayed excellent predictive performance for the overall survival of cholangiocarcinoma. The low-cuproptosis group had a significantly better prognosis than the high-cuproptosis group with transcriptome and protein cohorts. Second, compared with the high-risk and low-risk groups, the 2 groups displayed distinct tumor microenvironments, reduced proportions of endothelial cells, and increased levels of cancer-associated fibroblasts based on CIBERSORTx and EPIC analyses. Third, patients’ sensitivities to chemotherapeutic drugs and immune checkpoints revealed distinctive differences between the 2 groups. Finally, in replicating the expression patterns of the 10 genes, these results were validated with quantitative real-time polymerase chain reaction results validating the abnormal expression pattern of the target genes in cholangiocarcinoma.ConclusionsCollectively, we established and verified an effective prognostic model that could separate cholangiocarcinoma patients into 2 heterogeneous cuproptosis subtypes based on the molecular or protein characteristics of 10 cuproptosis-related genes. These findings may provide potential benefits for unveiling molecular characteristics and defining subgroups could improve the early diagnosis and individualized treatment of cholangiocarcinoma patients.
背景杯状细胞增多症是一种新型的介导细胞死亡,与多种癌症的进展密切相关,并被认为是一种潜在的治疗靶点。方法基于独立的 mRNA 和蛋白质数据集,对 146 个杯突症相关基因和临床信息进行了系统分析,以阐明杯突症相关基因的潜在机制和预后预测价值。结果表明,10个杯状细胞增多症相关基因对胆管癌预后的影响与患者的生存率显著相关。结果首先,10个杯弓蛇影相关基因特征(ADAM9、ADAM17、ALB、AQP1、CDK1、MT2A、PAM、SOD3、STEAP3和TMPRSS6)对胆管癌的总生存率有很好的预测作用。在转录组和蛋白质队列中,低杯突变组的预后明显优于高杯突变组。其次,根据CIBERSORTx和EPIC分析,与高危组和低危组相比,两组显示出不同的肿瘤微环境,内皮细胞比例降低,癌症相关成纤维细胞水平升高。第三,两组患者对化疗药物和免疫检查点的敏感性存在明显差异。最后,在复制 10 个基因的表达模式时,这些结果得到了定量实时聚合酶链反应结果的验证,验证了胆管癌中目标基因的异常表达模式。 结论总之,我们建立并验证了一个有效的预后模型,该模型可根据 10 个杯突症相关基因的分子或蛋白质特征将胆管癌患者分为 2 个异质性杯突症亚型。这些发现为揭示分子特征和定义亚组提供了潜在的益处,可改善胆管癌患者的早期诊断和个体化治疗。
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引用次数: 0
Breast Cancer Prediction Based on Multiple Machine Learning Algorithms 基于多种机器学习算法的乳腺癌预测
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-09 DOI: 10.1177/15330338241234791
Sheng Zhou, Chujiao Hu, Shanshan Wei, Xiaofan Yan
IntroductionThe incidence of breast cancer has steadily risen over the years owing to changes in lifestyle and environment. Presently, breast cancer is one of the primary causes of cancer-related deaths among women, making it a crucial global public health concern. Thus, the creation of an automated diagnostic system for breast cancer bears great importance in the medical community.ObjectivesThis study analyses the Wisconsin breast cancer dataset and develops a machine learning algorithm for accurately classifying breast cancer as benign or malignant.MethodsOur research is a retrospective study, and the main purpose is to develop a high-precision classification algorithm for benign and malignant breast cancer. To achieve this, we first preprocessed the dataset using standard techniques such as feature scaling and handling missing values. We assessed the normality of the data distribution initially, after which we opted for Spearman correlation analysis to examine the relationship between the feature subset data and the labeled data, considering the normality test results. We subsequently employed the Wilcoxon rank sum test to investigate the dissimilarities in distribution among various breast cancer feature data. We constructed the feature subset based on statistical results and trained 7 machine learning algorithms, specifically the decision tree, stochastic gradient descent algorithm, random forest algorithm, support vector machine algorithm, logistics algorithm, and AdaBoost algorithm.ResultsThe results of the evaluation indicated that the AdaBoost-Logistic algorithm achieved an accuracy of 99.12%, outperforming the other 6 algorithms and previous techniques.ConclusionThe constructed AdaBoost-Logistic algorithm exhibits significant precision with the Wisconsin breast cancer dataset, achieving commendable classification performance for both benign and malignant breast cancer cases.
导言由于生活方式和环境的改变,乳腺癌的发病率近年来稳步上升。目前,乳腺癌是导致女性癌症相关死亡的主要原因之一,是全球公共卫生的重要问题。本研究分析了威斯康星州乳腺癌数据集,并开发了一种机器学习算法,用于准确地将乳腺癌分为良性和恶性。方法我们的研究是一项回顾性研究,主要目的是开发一种高精度的良性和恶性乳腺癌分类算法。为此,我们首先使用标准技术对数据集进行了预处理,如特征缩放和缺失值处理。我们首先评估了数据分布的正态性,然后考虑到正态性检验结果,我们选择了斯皮尔曼相关性分析来检验特征子集数据和标记数据之间的关系。随后,我们采用 Wilcoxon 秩和检验来研究各种乳腺癌特征数据分布的差异性。我们根据统计结果构建了特征子集,并训练了 7 种机器学习算法,具体包括决策树算法、随机梯度下降算法、随机森林算法、支持向量机算法、物流算法和 AdaBoost 算法。结论所构建的 AdaBoost-Logistic 算法在威斯康星州乳腺癌数据集上表现出了显著的精确性,对良性和恶性乳腺癌病例都取得了值得称赞的分类性能。
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引用次数: 0
A Comparative Study of Deep Learning Dose Prediction Models for Cervical Cancer Volumetric Modulated Arc Therapy 宫颈癌容积调制弧治疗的深度学习剂量预测模型比较研究
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-08 DOI: 10.1177/15330338241242654
Zhe Wu, Mujun Liu, Ya Pang, Lihua Deng, Yi Yang, Yi Wu
Purpose: Deep learning (DL) is widely used in dose prediction for radiation oncology, multiple DL techniques comparison is often lacking in the literature. To compare the performance of 4 state-of-the-art DL models in predicting the voxel-level dose distribution for cervical cancer volumetric modulated arc therapy (VMAT). Methods and Materials: A total of 261 patients’ plans for cervical cancer were retrieved in this retrospective study. A three-channel feature map, consisting of a planning target volume (PTV) mask, organs at risk (OARs) mask, and CT image was fed into the three-dimensional (3D) U-Net and its 3 variants models. The data set was randomly divided into 80% as training-validation and 20% as testing set, respectively. The model performance was evaluated on the 52 testing patients by comparing the generated dose distributions against the clinical approved ground truth (GT) using mean absolute error (MAE), dose map difference (GT-predicted), clinical dosimetric indices, and dice similarity coefficients (DSC). Results: The 3D U-Net and its 3 variants DL models exhibited promising performance with a maximum MAE within the PTV 0.83% ± 0.67% in the UNETR model. The maximum MAE among the OARs is the left femoral head, which reached 6.95% ± 6.55%. For the body, the maximum MAE was observed in UNETR, which is 1.19 ± 0.86%, and the minimum MAE was 0.94 ± 0.85% for 3D U-Net. The average error of the Dmean difference for different OARs is within 2.5 Gy. The average error of V40 difference for the bladder and rectum is about 5%. The mean DSC under different isodose volumes was above 90%. Conclusions: DL models can predict the voxel-level dose distribution accurately for cervical cancer VMAT treatment plans. All models demonstrated almost analogous performance for voxel-wise dose prediction maps. Considering all voxels within the body, 3D U-Net showed the best performance. The state-of-the-art DL models are of great significance for further clinical applications of cervical cancer VMAT.
目的:深度学习(DL)被广泛应用于放射肿瘤学的剂量预测,但文献中往往缺乏多种深度学习技术的比较。目的:比较 4 种最先进的深度学习模型在预测宫颈癌容积调制弧治疗(VMAT)的体素级剂量分布方面的性能。方法和材料:这项回顾性研究共检索了 261 例宫颈癌患者的计划。由计划靶体积(PTV)掩膜、危险器官(OARs)掩膜和 CT 图像组成的三通道特征图被输入到三维(3D)U-Net 及其 3 个变体模型中。数据集被随机分为 80% 作为训练验证集,20% 作为测试集。通过使用平均绝对误差(MAE)、剂量图差异(GT-预测)、临床剂量学指数和骰子相似系数(DSC),将生成的剂量分布与临床批准的地面实况(GT)进行比较,对 52 名测试患者的模型性能进行评估。结果:3D U-Net 及其 3 个变体 DL 模型表现出良好的性能,UNETR 模型在 PTV 内的最大 MAE 为 0.83% ± 0.67%。在 OAR 中,左股骨头的 MAE 最大,达到 6.95% ± 6.55%。在身体方面,UNETR 的 MAE 最大,为 1.19 ± 0.86%,而 3D U-Net 的 MAE 最小,为 0.94 ± 0.85%。不同 OAR 的 Dmean 差值平均误差在 2.5 Gy 以内。膀胱和直肠的 V40 差值平均误差约为 5%。不同等剂量体积下的平均 DSC 均高于 90%。结论DL 模型可以准确预测宫颈癌 VMAT 治疗计划的体素级剂量分布。所有模型在体素剂量预测图方面的表现几乎相似。考虑到体内的所有体素,3D U-Net 显示出最佳性能。最先进的 DL 模型对宫颈癌 VMAT 的进一步临床应用具有重要意义。
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引用次数: 0
Endometrial Cancer Detection by DNA Methylation Analysis in Cervical Papanicolaou Brush Samples 通过宫颈巴氏涂片刷样本中的 DNA 甲基化分析检测子宫内膜癌
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-08 DOI: 10.1177/15330338241242637
San-feng Wang, Chong-yang Du, Mi Li, Bin Wen, Qing-jun Shen, Fang Ma, Liang Zhang, Hua Deng
Background: Endometrial cancer (EC) is the leading gynecological cancer worldwide, yet current EC screening approaches are not satisfying. The purpose of this retrospective study was to evaluate the feasibility and capability of DNA methylation analysis in cervical Papanicolaou (Pap) brush samples for EC detection. Methods: We used quantitative methylation-sensitive PCR (qMS-PCR) to determine the methylation status of candidate genes in EC tissue samples, as well as cervical Pap brushes. The ability of RASSF1A and HIST1H4F to serve as diagnostic markers for EC was then examined in cervical Pap brush samples from women with endometrial lesions of varying degrees of severity. Results: Methylated RASSF1A and HIST1H4F were found in EC tissues. Further, methylation of the two genes was also observed in cervical Pap smear samples from EC patients. Methylation levels of RASSF1A and HIST1H4F increased as endometrial lesions progressed, and cervical Pap brush samples from women affected by EC exhibited significantly higher levels of methylated RASSF1A and HIST1H4F compared to noncancerous controls ( P < .001). Receiver operating characteristic (ROC) curves and area under the curve (AUC) analyses revealed RASSF1A and HIST1H4F methylation with a combined AUC of 0.938 and 0.951 for EC/pre-EC detection in cervical Pap brush samples, respectively. Conclusion: These findings demonstrate that DNA methylation analysis in cervical Pap brush samples may be helpful for EC detection, broadening the scope of the commonly used cytological screening. Our proof-of-concept study provides new insights into the field of clinical EC diagnosis.
背景:子宫内膜癌(EC)是全球最主要的妇科癌症,但目前的EC筛查方法并不令人满意。这项回顾性研究的目的是评估宫颈巴氏涂片样本中的 DNA 甲基化分析用于检测子宫内膜癌的可行性和能力。方法:我们使用甲基化敏感定量 PCR(qMS-PCR)来确定宫颈癌组织样本和宫颈巴氏涂片刷样本中候选基因的甲基化状态。然后在患有不同严重程度子宫内膜病变的妇女的宫颈巴氏涂片样本中检测了 RASSF1A 和 HIST1H4F 作为宫颈癌诊断标记物的能力。结果显示在EC组织中发现了甲基化的RASSF1A和HIST1H4F。此外,在宫颈癌患者的宫颈涂片样本中也观察到了这两个基因的甲基化。RASSF1A和HIST1H4F的甲基化水平随着子宫内膜病变的进展而增加,与非癌变对照组相比,宫颈癌患者的宫颈涂片样本中RASSF1A和HIST1H4F的甲基化水平明显更高(P <.001)。接收者操作特征(ROC)曲线和曲线下面积(AUC)分析显示,在宫颈涂片样本中检测EC/EC前,RASSF1A和HIST1H4F甲基化的综合AUC分别为0.938和0.951。结论这些研究结果表明,宫颈涂片刷状样本中的DNA甲基化分析有助于检测EC,从而扩大了常用细胞学筛查的范围。我们的概念验证研究为临床EC诊断领域提供了新的见解。
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引用次数: 0
Blind Spots in Development of Nanomedicines 纳米药物开发中的盲点
IF 2.8 4区 医学 Q3 ONCOLOGY Pub Date : 2024-04-03 DOI: 10.1177/15330338241245342
Bhagyashree V. Salvi, Maithali Kantak, Kalyani Kharangate, Francesco Trotta, Timothy Maher, Pravin Shende
The field of nanomedicine demonstrates immense advantages and noteworthy expansion compared to conventional drug delivery systems like tablet, capsules, etc. Despite the innumerable advantages, it holds certain shortcomings in the form of blind spots that need to be assessed before the successful clinical translation. This perspective highlights the foremost blind spots in nanomedicine and emphasizes the challenges faced before the entry into the market, including the need for provision of safety and efficacy data by the regulatory agencies like FDA. The significant revolution of nanomedicine in the human life, particularly in patient well-being, necessitates to identify the blind spots and overcome them for effective management and treatment of ailments.
与片剂、胶囊等传统给药系统相比,纳米医学领域具有巨大的优势和显著的扩展性。尽管优势众多,但它也存在一些不足,即在成功临床转化之前需要评估的盲点。本视角突出了纳米医学的主要盲点,并强调了进入市场前所面临的挑战,包括需要美国食品及药物管理局等监管机构提供安全性和有效性数据。纳米医学在人类生活中,尤其是在患者福祉方面的重大变革需要找出盲点并加以克服,以有效管理和治疗疾病。
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引用次数: 0
期刊
Technology in Cancer Research & Treatment
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