AR、SKP2、SOX10、PD-L1及TIL表达在三阴性乳腺癌中的意义

目的:探索雄激素受体(androgen receptor,AR)、S期激酶相关蛋白2(S-phase kinase-associated protein 2,SKP2)、性别决定区Y相关的HMG盒含因子10(sry-related HMG box-containing factor 10,SOX10)、程序性死亡配体1(programmed death-ligand 1,PD-L1)及肿瘤浸润性淋巴细胞(tumor infiltrating lymphocyte,TIL)在三阴性乳腺癌(triple negative breast cancer,TNBC)表达与临床病理特征和预后的关系。方法:根据苏木精-伊红染色(hematoxylineosin, HE)染色切片评判109例TNBC瘤巢内TIL的比例,采用Leica Bond-Max全自动免疫组化仪检测TNBC组织中AR、SKP2、SOX10、PD-L1的表达。分析以上各生物指标与临床病理特征间的关系,并采用kaplan-Meier、Log-rank进行生存分析。结果:95例患者获得随访,中位随访时间为48个月,中位无病生存时间(disease-free survival, DFS)为42个月,中位总生存时间(overall survival, OS)48个月。在TNBC中,AR阳性表达与淋巴结转移阴性(P=0.009)、肿瘤最大径<2 cm(P=0.008)相关,TIL高表达与低级别TNBC相关(P=0.007),SKP2阳性表达与神经/脉管侵犯阳性(P=0.011)、高级别TNBC相关(P=0.002),SOX10阳性表达与淋巴结转移阳性(P=0.022)、高级别TNBC(P=0.005)相关,PD-L1阳性表达与淋巴结转移阳性(P=0.020)、神经/脉管侵犯阳性(P=0.006)、高级别TNBC(P=0.042)相关。生存分析显示,SKP2、SOX10阳性表达与更差的DFS(P=0.007、P<0.001)和OS(P=0.013、P<0.001)相关,TIL高表达与更好的DFS(P=0.016)及OS(P=0.004)相关。在生物表志物的联合表达中,AR+/SKP2-、AR+/SOX10-与更好的DFS(P=0.004、P<0.001)及OS(P=0.007、P=0.001)相关,SOX10+/低TIL、PD-L1+/低TIL与更差的DFS(P<0.001、P=0.008)及OS(P=0.001、P=0.002)相关,AR-/低TIL者具有更差的OS(P=0.014)。SKP2(HR=4.143,95%CI为1.578~10.875)、SOX10(HR=7.578,95%CI为2.067~27.782)的阳性表达是影响TNBC患者DFS的独立预后因子,SKP2(HR=3.758,95%CI为1.400~10.084)、SOX10(HR=5.131,95%CI为1.316~20.000)及TIL(HR=0.375,95%CI为0.154~0.917)的阳性表达是TNBC患者OS的独立预后因子(P均<0.05)。结论:在TNBC中,AR阳性、TIL高表达与具有更好预后的临床病理特征相关,SKP2、SOX10和PD-L1与具侵袭性的临床病理特征相关。SKP2、SOX10及TIL表达与TNBC预后相关,提示这些生物指标可能成为TNBC新的预后因子,同时它们也有可能成为潜在的治疗靶点。

基于S变换模能量分析的直流电缆故障测距

针对现有高压直流电缆故障定位方法故障定位精度低、定位模型泛化能力差等问题,文中在考虑电缆故障后故障点产生的暂态信号中含有丰富的故障信息的特征,提出一种时频域能量分析的故障测距方法。该方法利用多分类支持向量机(SVM)的特性构建直流电缆故障定位模型,利用直流电缆相模解耦矩阵对电缆电气量解耦,并采用S变换进行时频域变换,将得到的模量构造模能量,将其作为样本对SVM模型训练。实验结果表明,所提方法对于不同故障类型在不同过渡电阻及不同位置故障下均可进行准确测距。

GTSE1在肝癌中的表达及其对预后和免疫浸润的影响

目的研究G_(2)/S期应答相关蛋白1(G_(2) and S phase-expressed protein 1,GTSE1)在肝细胞癌(hepatocellular carcinoma,HCC)中的表达、免疫学作用和预后分析,及其潜在作用机制。方法使用公共数据库癌症基因组图谱(The Cancer Genome Atlas,TCGA)提供的数据,用Kaplan-Meier、肿瘤免疫评估资源(Tumor Immune Estimation Resource,TIMER)数据库和基因表达谱交互分析(Gene Expression Profiling Interactive Analysis,GEPIA)数据库进行GTSE1基因表达、免疫学作用及预后分析,通过免疫组化实验验证GTSE1在临床样本中的表达,应用R软件对GTSE1相关差异基因进行基因本体(gene ontology,GO)和京都基因与基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析。结果GTSE1在人类癌组织中显著高表达,且与肝细胞癌预后不良显著相关(P<0.05);GTSE1基因表达与HCC中浸润性免疫细胞的丰度显著相关(P<0.001)。GTSE1相关的差异表达基因主要富集于核分裂、细胞器裂变、离子通道活性等基因模块;其参与的信号通路主要包括神经活性配体-受体的相互作用、细胞周期等。结论GTSE1在HCC中的表达显著上调并与患者预后不良显著相关,且在免疫细胞浸润中发挥重要作用,可作为HCC的预后标志物和免疫治疗靶点。

H_(2)S/CO_(2)共存体系气液相中P110钢的腐蚀行为

为了研究油套管在H_(2)S/CO_(2)共存体系高温高压环境气液相中的腐蚀行为及腐蚀机理,利用高温高压反应釜展开了油套管P110钢在CO_(2)/H_(2)S共存体系中的动态腐蚀模拟试验。采用失重法计算了试样的均匀腐蚀速率和点腐蚀速率,采用XRD、SEM/EDS、三维光学轮廓显微镜等手段研究了CO_(2)/H_(2)S共存体系中P110钢处于液相和气相中的腐蚀行为特征。结果表明:液相中P110钢的均匀腐蚀速率和点腐蚀速率分别为0.0263 mm/a和0.2081 mm/a,均大于在气相环境中P110钢的均匀腐蚀速率(0.0148 mm/a)和点蚀速率(0.1569 mm/a)。液相中P110钢表面生成的腐蚀产物主要为红褐色粉状疏松的FeCO_(3),气相中P110钢表面所形成的腐蚀产物主要为FeCO_(3)和黑褐色致密均匀的FeS,FeS能抑制环境介质中CO_(2)、H_(2)S及Cl-对基体材料的进一步腐蚀。P110钢在液相和气相中发生的腐蚀主要为均匀腐蚀,局部区域有点蚀,存在局部腐蚀倾向。

高效液相色谱法测定纺织品中四溴双酚S

建立了一种以磁固相萃取纺织品中四溴双酚S,再利用高效液相色谱分析的方法。试验以Fe_(3)O_(4)-GO磁性材料为磁性固相吸附剂,并采用正交试验对萃取过程中的萃取剂用量、温度和时间等因素进行优化,再以0.1 mmol甲酸-乙腈(V∶V=30∶70)为流动相,采用Athena C18-WP柱(2.1 mm×100.0 mm,5.00μm)分离,检测波长214 nm,外标法定量。结果表明,在0.01~50.00 mg/L范围内四溴双酚S线性良好,相关系数R^(2)>0.999,加标回收率达到98.6%~101.5%,相对标准偏差(RSD)小于5.0%(n=6)。该方法高效、简单、灵敏,能够满足纺织品中四溴双酚S的检测。

S对铸造高温合金K417G凝固行为的影响

在1340~1230℃采用等温凝固实验,研究了w[S]分别为0.0001%、0.0018%和0.0037%对K417G合金凝固特性的影响。结果表明,S降低合金的固相线温度,扩大固液两相区,当w[S]从0.0001%增加到0.0037%时,合金的固相线温度由1255℃降低至1245℃。在凝固过程中S元素偏析于液相,并在终凝区析出Y相,且S促进Al、Cr元素在固液界面处的富集。在相同等温温度下,S元素对MC碳化物和γ+γ’共晶的析出温度与形貌无明显影响,但S含量的增加促使MC碳化物、γ+γ’共晶和Y相数量的增加,且Y相的析出温度从1230℃提升至1240℃。

基于S变换相关度的配电网单相接地自适应有源消弧法

提出了基于S变换相关度的配电网单向接地自适应有源消弧法,有效消除了配电网单相接地故障电弧,提升了电力系统稳定性。采集配电网线路零序电流时序数据,经S变换获取零序电流时频信息矩阵后,计算并获取各线路间时频信息矩阵相关度矩阵,输入卷积神经网络模型,输出单相接地故障选线结果;在故障线路采用基于模糊准PR与PI控制的双闭环自适应控制方法,向配电网故障线路中性点注入零序电流,有效控制注入电流相位以及幅值,迫使配电网故障线路所在相的电压值为0,完成自适应有源消弧。实验结果表明:该方法可有效识别配电网单相接地故障线路,实现配电网单相接地自适应有源消弧,且可尽快完成单相接地自适应有源消弧工作,保证配电网安全稳定运行。

基于改进D-S证据理论的相控阵雷达作战效能评估

针对相控阵雷达作战效能评估中战场环境等不确定因素的影响,采用改进Dempster-Shafer(D-S)证据理论对其进行作战效能评估方法的优化。首先,通过构建相控阵雷达作战效能评估指标体系,明确评估指标并赋值权。其次,引入Kulsinski差异和模糊熵方法,对传统的D-S证据理论进行改进,减少指标在融合过程中的融合权重不确定性的影响。最后,通过改进D-S证据理论对评估指标进行数据融合,建立评估准确性较高的相控阵雷达作战效能评估模型。通过算例验证分析,所提方法能够有效减少融合过程中的不确定性影响,可实现相控阵雷达作战效能评估的目的,提高作战效能评估精度。

AISI 300系列奥氏体不锈钢渗氮层组织和性能研究

目的在AISI 300系列奥氏体不锈钢表面制备单一S相渗氮层,提高该系列不锈钢渗氮层的硬度、抗磨损性能,对比揭示渗氮前后不锈钢的磨损机制。方法采用低温辉光等离子渗氮技术(LTPNT)在AISI 300系列奥氏体不锈钢表面制备渗氮层。利用光学显微镜(OM)、扫描电子显微镜(SEM)、电子探针(EPMA)、X射线衍射仪(XRD)分析渗氮层的截面形貌、元素分布和物相组成;通过比磨损率和磨痕形貌分析渗氮层的摩擦学性能;利用电化学实验考察渗氮前后3种不锈钢的耐蚀性。结果AISI 300系列奥氏体不锈钢经380℃、12 h处理后,其表面获得了厚度为15μm左右、与基体致密结合、组织成分均匀的渗氮层;渗氮层的相结构主要为S相,无CrN相析出;经渗氮后,该系列不锈钢表面硬度均为1100HV左右,较基体硬度提高了5倍左右;不锈钢基体的磨损机理为黏着和磨粒磨损,经渗氮后转变为氧化磨损和微切削;渗氮层的比磨损率约为不锈钢基体的1/20,抗磨损的能力得到显著提升;在25℃环境温度下渗氮后,304L、316L和321的自腐蚀电位下降,腐蚀电流密度增加,腐蚀速率加快,耐腐蚀性能稍有降低。通过对比腐蚀形貌发现,渗氮层仍具有一定的耐蚀性能。结论通过LTPNT可以获得高硬度、组织均匀致密、结合强度高的渗氮层,渗氮层中S相的存在可以显著提高AISI300系列奥氏体不锈钢的表面硬度、抗磨损能力,降低其摩擦因数和比磨损率,对延长不锈钢的服役寿命有着积极的作用。

S Zorb装置转剂线腐蚀风险评估与磨损特性分析

催化裂化汽油吸附脱硫技术(S Zorb)是一种清洁汽油生产的核心技术,近年来,S Zorb装置中出现的转剂线磨损和泄漏等问题已成为石油化工行业内的共性难点问题。某公司2号S Zorb装置自2013年投用以来,转剂线频繁出现磨损和泄漏问题,以该案例为研究对象,对转剂线开展腐蚀风险评估以及气固两相流流态和磨损机理等综合特性分析,同时对弯管弯径比和气速对磨损的影响进行了讨论,为转剂线的设计优化以及运行可靠性的提升提供了参考。

磁共振弥散加权成像联合血清SKP2检测在乳腺癌诊断中的价值

目的:探讨磁共振弥散加权成像(diffusion-weighted magnetic resonance imaging,DWI)联合血清S期激酶相关蛋白酶2(S-phase kinase-related protease 2,SKP2)检测在乳腺癌诊断中的价值。方法:选取2020年5月至2022年4月河南大学第一附属医院诊治的女性单发乳腺肿块患者166例,最终病理检查确诊84例为乳腺癌(乳腺癌组)、82例为乳腺良性病变(良性病变组)。所有患者入院24 h内行DWI检查,采用实时荧光定量PCR法检测血清SKP2 mRNA表达水平;绘制受试者工作特征(receiver operating characteristic,ROC)曲线分析血清SKP2 mRNA及表观扩散系数(apparent diffusion coefficient,ADC)诊断乳腺癌的效能;采用Kappa检验分析DWI单独及联合血清SKP2 mRNA诊断乳腺癌时与病理诊断结果的一致性。结果:DWI显示乳腺癌组形状不规则、边界模糊、淋巴结肿大、毛刺征、血管影增多比例显著高于良性病变组(P<0.05)。b值取600、800、1000 s/mm^(2)时,乳腺癌组DWI图像中的ADC均显著低于良性病变组(P<0.05)。b为600、800、1000 s/mm2的DWI诊断乳腺癌与病理诊断结果一致性均为较高(Kappa值为0.723、0.747、0.711,P<0.05)。乳腺癌组血清SKP2 mRNA表达水平显著高于良性病变组(P<0.05)。血清SKP2 mRNA、ADC诊断乳腺癌的曲线下面积(area under the curve,AUC)分别为0.859(95%CI 0.803~0.915)、0.905(95%CI 0.858~0.951),特异度分别为80.49%、89.02%,灵敏度分别为77.38%、85.71%。DWI联合血清SKP2 mRNA诊断乳腺癌与病理诊断结果一致性极高(Kappa值为0.855,P<0.05)。DWI联合血清SKP2 mRNA诊断乳腺癌的灵敏度、阴性预测值明显高于DWI、血清SKP2 mRNA单一检测诊断,准确度高于血清SKP2 mRNA单一检测诊断(P<0.05)。结论:DWI联合血清SKP2检测诊断乳腺癌具有良好的辅助参考价值,二者联合后灵敏度、阴性预测值较高。

吴茱萸碱通过调控Notch通路抑制Skp2的表达对哮喘小鼠气道重塑和炎症反应的影响

目的 探究吴茱萸碱对哮喘小鼠的气道重塑和炎症反应的影响及其相关机制。方法 48只BALB/c小鼠按随机数字法分为正常对照组、模型组、吴茱萸碱组和吴茱萸碱处理的过表达Notch信号通路抑制剂Kyo T2的腺病毒载体干预组,每组12只。采用卵清蛋白(OVA)诱导建立小鼠哮喘模型,吴茱萸碱组和吴茱萸碱加Kyo T2腺病毒载体干预组以30 mg/kg的吴茱萸碱溶于生理盐水灌胃,其中,吴茱萸碱加Kyo T2腺病毒载体干预组经鼻滴入5×108pfu的Kyo T2腺病毒干预,其余组灌胃等量的生理盐水。末次激发24 h后,收集支气管肺泡灌洗液(BALF),进行细胞计数;ELISA法检测炎性因子TNF-α、IL-1β、IL-4和OVA特异性IgE和IgG1;过碘酸雪夫(PAS)染色法检测气道杯状细胞增生;Masson染色法观察肺组织胶原沉积现象;免疫组化法检测α-SMA的表达;Western blot法检测α-SMA、Hes1、Skp2蛋白的表达。结果 与对照组相比,模型组小鼠BALF中总细胞和嗜酸性粒细胞、巨噬细胞、淋巴细胞数均显著升高(P <0.05),TNF-α、IL-1β、IL-4因子水平上升(P <0.05),α-SMA、Hes1和Skp2的表达上调(P <0.05)。与模型组相比,吴茱萸碱组和吴茱萸碱加Kyo T2腺病毒载体干预组BALF中总细胞和嗜酸性粒细胞、巨噬细胞、淋巴细胞数显著降低(P <0.05),TNF-α、IL-1β、IL-4因子水平下调(P<0.05),α-SMA、Hes1和Skp2的表达降低(P <0.05),气道炎症得到明显改善;与吴茱萸碱组相比,吴茱萸碱加Kyo T2腺病毒载体干预组炎性因子显著降低,通路蛋白下调,气道炎症改善更为显著(P <0.05)。结论吴茱萸碱对哮喘小鼠气道重塑和炎症反应的改善,可能与Notch通路抑制Skp2的表达相关。

一种S频段反射型可调模拟移相器的设计

设计了一种应用于S频段卫星通信相控阵系统的反射型可调模拟移相器。该移相器利用三分支线定向耦合器扩展了带宽,改善了工作频段内驻波;采用传输线和变容二极管构成的L型反射负载扩大了相移量。测试结果表明,在上行频段1.98~2.01 GHz内,相移量达到191°±1°,在下行频段2.17~2.2 GHz内,相移量达到186°±0.1°;插入损耗优于3.3 dB且插入损耗波动小于1 dB,回波损耗在整个电压调谐范围内均大于20 dB。该移相器结构简单、便于调节且价格低廉,在卫星通信领域有一定的应用价值。

S Phase Cell Percentage Normalized BrdU Incorporation Rate, a New Parameter for Determining S Arrest

In this study, a new parameter, S phase cell percentage （S fraction） normalized BrdU （SFN-BrdU） incorporation rate, was introduced to detect $ arrest. The results showed a positive linear correlation between the BrdU incorporation rate and the S fraction in unperturbed 16HBE cells. Theoretical analysis indicated that only S arrest could result in a decrease in the SFN-BrdU incorporation rate. Additionally, the decrease in SFN-BrdU incorporation rate and the activation of DNA damage checkpoints further demonstrated that S arrest was induced by diethyl sulfate treatment of 16HBE cells. In conclusion, $FN-BrdU incorporation rate can be used to detecting S arrest.

Reversed-phase fused-core HPLC modeling of peptides

Different fused-core stationary phase chemistries（C18,Amide,Phenyl-hexyl and Peptide ES-C18） were used for the analysis of 21 structurally representative model peptides.In addition,the effects of the mobile phase composition（ACN or MeOH as organic modifier;formic acid or acetic acid,as acidifying component） on the column selectivity,peak shape and overall chromatographic performance were evaluated.The RP-amide column,combined with a formic acid-acetonitrile based gradient system,performed as best.A peptide reversed-phase retention model is proposed,consisting of 5 variables：log SumAA,log Sv,clog P,log nHDon and log nHAcc.Quantitative structure-retention relationship（QSRR） models were constructed for 16 different chromatographic systems.The accuracy of this peptide retention model was demonstrated by the comparison between predicted and experimentally obtained retention times,explaining on average 86% of the variability.Moreover,using an external set of 5 validation peptides,the predictive power of the model was also demonstrated.This peptide retention model includes the novel in-silico calculated amino acid descriptor,AA,which was calculated from log P,3D-MoRSE,RDF and WHIM descriptors.

Differential activation of intra-S-phase checkpoint in response to tripchlorolide and its effects on DNA replication

DNA replication is tightly regulated during the S phase of the cell cycle, and the activation of the intra-S-phase checkpoint due to DNA damage usually results in arrest of DNA synthesis. However, the molecular details about the correlation between the checkpoint and regulation of DNA replication are still unclear. To investigate the connections between DNA replication and DNA damage checkpoint, a DNA-damage reagent, tripchlorolide, was applied to CHO (Chinese ovary hamster) cells at early- or middle-stages of the S phase. The early-S-phase treatment with TC significantly delayed the progression of the S phase and caused the phosphorylation of the Chk1 checkpoint protein, whereas the middle-S-phase treatment only slightly slowed down the progression of the S phase. Furthermore, the analysis of DNA replication patterns revealed that replication pattern Ⅱ was greatly prolonged in the cells treated with the drug during the early-S phase, whereas the late-replication patterns of these cells were hardly detected, suggesting that the activation of the intra-S-phase checkpoint inhibits the late-origin firing of DNA replication. We conclude that cells at different stages of the S phase are differentially sensitive to the DNA-damage reagent, and the activation of the intra-Sphase checkpoint blocks the DNA replication progression in the late stage of S phase.

The Phenomenon of High Hardness Values on the S-Phase Layer of Austenitic Stainless Steel via Screen Plasma Nitriding Process

The purpose of this study is to improve the surface properties of austenitic stainless steel using the double-folded electrode screen plasma nitriding (SPN) process. In general, the S-phase is well-known for its excellent properties such as improved hardness and wear resistance along with sustained corrosion resistance. The concentrated nitrogen via SPN process was injected to form S-phase with time at 713 K. This study was carried out under the conditions of 44 at% of nitrogen injection, which was higher than 25 at% known as the condition of no precipitation of S-phase formed by the SPN process, and 20 K higher than the maximum temperature without precipitation phase. The hardness analysis of stainless steel sample treated by the SPN process at 713 K showed a much higher value than the typical nitriding hardness at a depth of lower nitrogen than the maximum nitrogen concentration. The SPN 20 hr treated specimen showed the average value of 2339 HV while 40 hr showed the average value of 2215 HV. The result is attributed to the concentrated nitrogen formed in the SPN process reacting with the alloying elements contained in the base material to form fine precipitates, thus producing a synergy effect of the extreme hardening effect;that is, the movement of precipitates and dislocations due to the GP-zone (Guinier-Preston zone).

Effect of Magnesium on the C-S-H Nanostructure Evolution and Aluminate Phases Transition in Cement-Slag Blend

The microstructural study was conducted on cement and cement-slag pastes immersed in different concentrations of Mg（NO3）2 solutions utilizing ^29Si, ^27Al NMR spectroscopy and XRD techniques. The results show that the hydration of both the cement and cement-slag pastes is delayed when the pastes are cured in Mg（NO3）2 solutions as compared to the pastes cured in water. Moreover, Mg^2＋ ions also exhibit an decalcifying and dealuminizing effect on the C-A-S-H in cement and cement-slag pastes, and thereby decrease Ca/Si and Al[4]/Si ratios of the C-A-S-H. The dealuminization of C-A-S-H is mitigated for cement-slag paste as compared to pure cement paste. The depolymerized calcium and aluminum ions from C-A-S-H gel mainly enter the pore solution to maintain the pH value and form Al^[6] in TAH, respectively. On the other hand, Mg^2＋ ions exert an impact on the intra-transition between Al^[6] species, from AFm and hydrogarnet to hydrotalcite-like phase. NO3^-ions are interstratified in the layered Mg-Al structure and formed nitrated hydrotalcite-like phase（Mg1-xAlx（OH）2（NO3）x·nH2O）. Results from both ^27Al NMR and XRD data show that ettringite seems not to react with Mg^2＋ ions.

Postoperative chemotherapy with S-1 plus oxaliplatin versus S-1alone in locally advanced gastric cancer(RESCUE-GC study): a protocol for a phase Ⅲ randomized controlled trial

Background： The ACTS-GC study had shown postoperative adiuvant therapy with S-1 improved survival of patients with locally advanced gastric cancer. Addition of oxaliplatin to S-1 is considered to be acceptable as one of the treatment options for gastric cancer patients after radical gastrectomy with D2 lymph node excision. Methods： We have commenced a randomized phase III trial in December 2016 to evaluate S-I plus oxaliplatin compared with S-1 alone in the adjuvant setting for locally advanced gastric cancer. A total of 564 patients will be accrued from 13 Chinese institutions in two years. The primary endpoint is 3-year relapse-free survival. The secondary endpoints are 5-year overall survival, proportion of patients who complete the postoperative chemotherapy and incidence of adverse events. Ethic and dissemination： The trial has been approved by the institutional review board of each participating institution and it was activated on December, 2016. The enrollment will be finished in December, 2018. Patient＇s follow-up will be ended until December, 2023. Trial registration： ClinicalTrials.gov, identifier： NCT02867839. Registered on August 4, 2016.

外周血单个核细胞GTSE1水平与上皮性卵巢癌预后的相关性

目的:探究外周血单个核细胞G_(2)/S期应答相关蛋白1(G_(2)and S phase-expressed-1,GTSE1)水平与上皮性卵巢癌(epithelial ovarian cancer,EOC)预后的关系。方法:GEPIA和Kaplan-Meier Plotter分析GTSE1在卵巢癌组织中的表达及其与预后的关系。选择2017年04月至2020年10月本院126例EOC患者(EOC组)和40例同期无EOC的健康体检者(对照组)作为研究对象。Ficoll密度梯度离心法分离外周血中单个核细胞,蛋白质免疫印迹法检测GTSE1水平。Spearman相关分析EOC组织和外周血单个核细胞中GTSE1水平的关系。随访了解EOC预后,用COX回归分析EOC预后的风险因素。结果:GEPIA和Kaplan-Meier Plotter分析结果显示,卵巢癌组织中GTSE1水平高于正常卵巢组织(P<0.05),GTSE1低水平卵巢癌患者的中位无进展生存时间高于GTSE1高水平卵巢癌患者(P<0.05)。随访期间复发98例(77.8%),其中铂类敏感型65例,铂类耐药型33例;死亡41例(32.5%)。EOC组的外周血单个核细胞中GTSE1 mRNA和GTSE1蛋白水平均高于对照组(P<0.001)。EOC患者癌组织和外周血单个核细胞中GTSE1水平呈正相关关系(r_(s)=0.225,P=0.011)。国际妇产科联盟(International Federation of Gynecology and Obstetrics,FIGO)Ⅰ-Ⅱ期患者的GTSE1水平低于Ⅲ-Ⅳ期的患者(P<0.001);未复发患者的GTSE1水平低于铂类敏感型和铂类耐药型的患者(P<0.05);生存患者的GTSE1水平低于死亡患者(P<0.001)。GTSE1高水平患者的无复发生存时间和总生存时间均低于GTSE1低水平患者(P<0.001)。COX回归分析结果显示,FIGO分期高(HR=2.110,95%CI:1.465~3.038,P<0.001;HR=2.261,95%CI:1.212~4.216,P=0.011)、初次手术残存灶>1 cm(HR=1.724,95%CI:1.130~2.631,P=0.012;HR=2.465,95%CI:1.246~4.874,P=0.010)和GTSE1>1.29(HR=2.071,95%CI:1.304~3.291,P=0.002;HR=5.634,95%CI:2.410~13.169,P<0.001)是EOC预后(复发和生存)的独立危险因素,应用贝伐单抗(HR=0.293,95%CI:0.116~0.738,P=0.010;HR=0.141,95%CI:0.056~0.357,P<0.001)是EOC预后的独立保护因素。结论:EOC患者外周血单个核细胞中GTSE1水平高提示预后不良风险高。