Objective To explore circulating biomarkers for screening the invasiveness of non-functioning pituitary adenomas(NF-PAs).Methods The exosomal RNAs were extracted from serum of patients with invasive NF-PA(INF-PA)or no...
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Objective To explore circulating biomarkers for screening the invasiveness of non-functioning pituitary adenomas(NF-PAs).Methods The exosomal RNAs were extracted from serum of patients with invasive NF-PA(INF-PA)or noninvasive NF-PA(NNF-PA).Droplet digital PCR was adapted to detect the mRNA expression of candidate genes related to tumor progression or invasion,such as cyclin dependent kinase 6(CDK6),ras homolog family member U(RHOU),and spire type actin nucleation factor 2(SPIRE2).Student’s t-test was used to analyze the statistical difference in the mRNA expression of candidate genes between the two *** operating characteristic(ROC)curve was used to establish a model for predicting the invasiveness of *** accuracy,sensitivity,specificity and precision of the model were then obtained to evaluate the diagnostic *** CDK6(0.2600±0.0912 vs.0.1789±0.0628,t=3.431,P=0.0013)and RHOU mRNA expressions(0.2696±0.1118 vs.0.1788±0.0857,t=2.946,P=0.0052)were upregulated in INF-PAs patients’serum exosomes as compared to *** CDK6,the area under the ROC curve(AUC)was 0.772(95%CI:0.600-0.943,P=0.005),the accuracy,sensitivity,specificity and precision were 77.27%,83.33%,75.00%and 55.56%to predict the invasiveness of *** RHOU,the AUC was 0.757(95%CI:0.599-0.915,P=0.007),the accuracy,sensitivity,specificity and precision were 72.73%,83.33%,68.75%and 50.00%.In addition,the mRNA levels of CDK6 and RHOU in serum exosomes were significantly positively correlated(r=0.935,P<0.001).After combination of the cut-off scores of the two genes,the accuracy,sensitivity,specificity and precision were 81.82%,83.33%,81.25%and 62.50%.Conclusions CDK6 and RHOU mRNA in serum exosomes can be used as markers for predicting invasiveness of *** of the two genes performs better in distinguishing INF-PAs from *** results indicate CDK6 and RHOU play important roles in the invasiveness of NF-PAs,and the established diagnostic method is valua
目的探讨免疫和基质细胞相关基因对三阴性乳腺癌(triple-negative breast cancer,TNBC)预后的影响。方法利用ESTIMATE算法计算GEO数据库中TNBC样本的免疫评分,使用R包中的limma包筛选差异表达基因。GEO数据库和KM-plotter网站进行生存分...
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目的探讨免疫和基质细胞相关基因对三阴性乳腺癌(triple-negative breast cancer,TNBC)预后的影响。方法利用ESTIMATE算法计算GEO数据库中TNBC样本的免疫评分,使用R包中的limma包筛选差异表达基因。GEO数据库和KM-plotter网站进行生存分析,寻找与TNBC无病生存期显著相关的基因。通过免疫组织化学染色和RT-qPCR验证其中部分基因的表达水平。结果功能富集和蛋白-蛋白相互作用网络分析显示这些基因主要参与免疫应答。R包中survival包生存分析显示,36个基因中有14个基因与TNBC的DFS显著相关。Cox-LASSO分析筛选出4个与TNBC预后相关的基因。时间依赖的受试者工作特征分析显示,1年生存率的曲线下面积(area under the curve,AUC)为0.95,表明4个基因具有很好的预后预测能力。结论含杆状病毒IAP重复3(baculoviral IAP repeat containing 3,BIRC3)基因、CD8抗原(CD8 antigen,CD8A)基因、颗粒溶素(granulysin,GNLY)基因和含三方基序22(tripartite motif containing 22,TRIM22)基因这4个基因可能与TNBC的免疫微环境相关,是TNBC潜在的预后和治疗标志物。
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