芝麻酚通过AMPK/SIRT1/NF-κB信号通路调控食管鳞状细胞癌Eca109细胞的自噬和凋亡

目的：探讨芝麻酚（SEM）通过腺苷酸活化蛋白激酶（AMPK）/沉默信息调节因子1(SIRT1)/核因子κB(NF-κB)通路影响食管鳞状细胞癌（ESCC）Eca109细胞自噬和凋亡的机制。方法:用不同浓度的SEM(0、1.562 5、3.125、6.25、12.5、25、50、100、200、400μmol/L)分别处理Eca109细胞、人食管上皮细胞HEEpiC 48 h,CCK-8法检测细胞增殖率，筛选适宜的SEM浓度用于后续实验。将Eca109细胞分为对照组（CK组，0μmol/L）、低剂量SEM组（SEM-L组，25μmol/L）、中剂量SEM组（SEM-M组，50μmol/L）、高剂量SEM组（SEM-H组，100μmol/L）、高剂量SEM+Compound C(AMPK抑制剂)组（SEM-H+Compound C组，100μmol/L+10μmol/L），所有各组Eca109细胞在对应的药物浓度下处理48 h后，CCK-8法检测Eca109细胞增殖，流式细胞术检测细胞凋亡，透射电镜观察Eca109细胞内自噬小体，WB法检测Eca109细胞中微管相关蛋白1轻链3(LC3)-...     

自噬/Beclin1调节因子1通过Akt-Bad-Bcl-2通路降低乳腺癌化疗敏感性

目的 检测自噬/Beclin1调节因子1(Ambra1)在乳腺癌中的表达及对化疗敏感性的影响,并探讨可能的机制。方法 (1)临床标本测定：回顾性收集2018-03-01-2019-12-30在广西医科大学第二附属医院行手术切除的42例乳腺癌及癌旁组织标本,采用免疫组织化学方法检测Ambra1的表达。(2)细胞实验：通过Ambra1慢病毒表达载体(OE),使Ambra1在乳腺癌MCF-7和MDA-MB-231细胞高表达,以空载(Empty)作为对照。蛋白质印迹法分别检测细胞内Akt/pAkt、Bad/pBad^s136、Bcl-2和Bax的表达,定量逆转录聚合酶链反应(qRT-PCR)检测Akt mRNA表达;同时,细胞用紫杉醇(PTX)处理后,细胞计数盒8(CCK8)法和流式细胞术分别检测细胞存活和凋亡。为了研究pAkt的作用,细胞在感染OE的同时,使用GSK690693(GSK)抑制Akt磷酸化,蛋白质印迹法检测Bad/pBad^s136、Bcl-2和Bax表达,流式细胞术和CCK8法分别检测紫杉醇诱导的凋亡和细胞存活。结果 (1)临床标本测定...     

石蒜碱通过TGF-β/Smad 信号通路调控自噬抑制食管癌细胞增殖

目的:探讨石蒜碱对食管癌细胞增殖的影响,并分析其机制。方法:细胞计数8（CCK-8）法分析细胞增殖抑制率,MDC染色法检测自噬泡,Western blot法分析LC3II/LC3I、Beclin-1、转化生长因子-β(transforming growth factor-β,TGF-β)、p-Smad2/Smad2水平,观察3-MA对石蒜碱调控自噬和凋亡的影响。裸鼠成瘤实验验证石蒜碱对裸鼠体内瘤体的瘤重、瘤体积及自噬、p-Smad2/Smad2水平的影响。结果:2、4、8、16、32、64 μmol/L的石蒜碱抑制ECA109细胞增殖（F=22.412,P＜0.05）,IC50值为（15.56±2.16）μmol/L。4、8、16 μmol/L石蒜碱促进自噬泡的产生,增加LC3II/LC3I、Beclin-1水平,降低TGF-β1、p-Smad2/Smad2水平（P＜0.05）;3-MA可以逆转石蒜碱对自噬、凋亡及TGF-β/Smad信号通路和Bcl-2/Bax信号通路的影响;体内实验显示,100 mg/kg石蒜碱能降低瘤体体积、瘤体质量,下调p-Smad2/Smad2水平,上调LC3II/LC3I水平（P＜0.05）。3-MA可以逆转石蒜碱对瘤体体积、瘤体质量及LC3II/LC3I、p-Smad2/Smad2水平的影响。结论:石蒜碱能抑制ECA109细胞的增殖,促进细胞凋亡,对体内ECA109细胞移植瘤抑瘤效果明显,其机制与调控TGF-β/Smad信号通路激活自噬有关。     

顺铂通过抑制PI3K/AKT/mTOR信号通路诱导子宫内膜癌Ishikawa细胞自噬

目的：探讨顺铂对子宫内膜癌Ishikawa细胞自噬的影响,并初步探讨PI3K/AKT/mTOR信号通路在其中的作用。方法：透射电镜观察自噬泡形成,免疫荧光检测微管相关蛋白1轻链3融合蛋白II（microtubule-associated protein 1 light chain 3II,LC3II） 的荧光聚集情况。采用Westerblot检测mTOR通路中的PI3K、AKT及mTOR蛋白的表达。结果：顺铂（20μg/mL）能诱导Ishikawa细胞发生自噬,其中24h组明显高于12h组（P<0.05）;与对照组（20μg/mL-0h组）相比较,自噬相关蛋白-LC3的表达随着时间延长表达增加（P<0.05）。磷酸化AKT1、磷酸化mTOR及PI3Kp85蛋白表达水平随着时间延长表达下降。胰岛素样生长因子-1（insulin-like growth factors-1,IGF-1）与顺铂共培养组自噬小体及LC3蛋白表达少于顺铂组,但高于对照组。结论：顺铂可能通过抑制PI3K/AKT/mTOR信号通路,从而诱导子宫内膜癌细胞发生自噬。     

广藿香酮通过JNK/c-Jun信号通路调控肺癌A549细胞凋亡及自噬

目的 探讨广藿香酮对肺癌A549细胞增殖、凋亡、自噬和JNK/c-Jun信号通路的影响。方法 采用0、10、20、40μmol/L广藿香酮处理肺癌A549细胞，将细胞随机分为4组：0μmol/L、10μmol/L、20μmol/L和40μmol/L广藿香酮处理组，同时将5μmol/L顺铂处理后的肺癌A549细胞作为阳性对照组。EdU染色检测细胞增殖；Hoechst 33258染色检测细胞凋亡；Western blotting检测LC3Ⅰ、LC3Ⅱ、Beclin-1、p62、JNK、p-JNK、c-Jun和p-c-Jun蛋白表达。10μmol/L JNK抑制剂SP600125与40μmol/L广藿香酮共处理A549细胞2 h及24 h,检测细胞增殖、凋亡及相关蛋白表达。结果 与广藿香酮0μmol/L组比较，广藿香酮20、40μmol/L组EdU阳性细胞数降低，细胞凋亡率升高，LC3Ⅱ/LC3Ⅰ比值和Beclin-1蛋白表达升高，p62蛋白表达降低，LC3⁺含量升高，p-JNK/JNK、p-c-Jun/c-Jun比值升高，差异均有统计学意义(P<0.05)。与对...     

LncRNA MALAT1通过激活Wnt/β-catenin通路调控Saos-2细胞自噬、增殖、迁移及侵袭北大核心

目的:观察LncRNA MALAT1对Saos-2细胞自噬、增殖、迁移及侵袭的影响,并探讨其作用机制。方法:干扰LncRNA MALAT1在Saos-2细胞中的表达水平,CCK8法检测细胞增殖能力,流式细胞技术检测细胞凋亡及周期情况,细胞划痕实验及Transwell实验检测细胞迁移及侵袭改变,透射电镜观察自噬小体,Western Blot、RT-PCR检测自噬相关因子Beclin1、LC3、p62表达差异及LncRNA MALAT1对Wnt/β-catenin通路的影响。结果:干扰LncRNA MALAT1后,Saos-2细胞自噬水平明显升高,Beclin1、LC3表达水平明显升高(P<0.05),而p62的表达水平显著下降(P<0.05);细胞增殖、迁移和侵袭能力显著下降(P<0.05),Wnt/β-catenin通路相关因子Wnt3a、β-catenin的表达水平显著下降(P<0.05)。结论:LncRNA MALAT1可以通过激活Wnt/β-catenin通路调控Saos-2细胞自噬、增殖、迁移和侵袭。     

甲磺酸阿帕替尼通过Erk1/2信号通路抑制乳腺癌细胞增殖机制研究

目的 探讨甲磺酸阿帕替尼抑制乳腺癌细胞增殖的生物学行为及调控Erk1/2信号通路的分子机制.方法 体外培养乳腺癌MDA-MB-231细胞,CCK-8法检测细胞增殖.流式细胞术检测细胞凋亡和细胞周期分布;激光共聚焦显微镜观察细胞自噬体形成情况.Western blotting法检测凋亡、自噬及Erk1/2信号通路相关蛋白...     

异莲心碱通过PI3K/Akt/mTOR信号通路影响结肠癌SW480细胞增殖、 凋亡和自噬

目的：探讨异莲心碱（Iso）通过PI3K/Akt/mTOR信号通路对结肠癌SW480细胞增殖、凋亡和自噬的影响。方法：用 10、20和40 μmol/L的Iso处理结肠癌SW480细胞,CCK-8法、流式细胞术和WB法分别检测Iso对细胞增殖活力、凋亡和自噬相关 蛋白LC3Ⅰ、LC3Ⅱ、p62表达的影响。然后,用20 μmol/L的Iso和25 μmol/L的PI3K激活剂740 Y-P分别处理SW480细胞,将细 胞分为对照组、740 Y-P组、Iso组和Iso+740 Y-P组,流式细胞术、WB法检测Iso和740 Y-P对各组细胞凋亡及细胞中LC3Ⅰ、LC3Ⅱ、 p62、PI3K、p-PI3K、 mTOR和p-mTOR蛋白表达的影响。结果：10、20和40 μmol/L的Iso处理后,SW480细胞增殖活力均显著下 降（均P<0.05）,细胞凋亡率均显著升高（均P<0.05）,LC3Ⅱ/LC3Ⅰ表达均显著上调（均P<0.05）,p26蛋白表达显著下调（P<0.05）。 Iso和740 Y-P处理后,与对照组相比,740 Y-P 组细胞凋亡率、LC3Ⅱ/LC3Ⅰ表达均显著下降（均P<0.05）,p26、p-PI3K/PI3K和 p-mTOR/mTOR 表达均显著升高（均 P<0.05）;Iso 组 细胞凋亡率、LC3Ⅱ/LC3Ⅰ表达升高（均 P<0.05）,p26、p-PI3K/PI3K和 p-mTOR/mTOR 表达均显著下降（均 P<0.05）;与 740 Y-P 组相比,Iso+740 Y-P 组细胞凋亡率、LC3Ⅱ/LC3Ⅰ表达升高（P<0.05）, p26、p-PI3K/PI3K和p-mTOR/mTOR表达均显著下降（均P<0.05）;与Iso组相比,Iso+740 Y-P组细胞凋亡率、LC3Ⅱ/LC3Ⅰ表达下 降（均P<0.05）,p26、p-PI3K/PI3K和p-mTOR/mTOR表达均显著升高（均P<0.05）。结论：Iso通过抑制PI3K/Akt/mTOR信号通路 抑制结肠癌SW480细胞增殖并诱导细胞凋亡和自噬。     

调控TGF-β1/Smad4通路对宫颈癌SiHa细胞自噬基因LC3的影响

目的:探究调控TGF-β1/Smad4通路对宫颈癌SiHa细胞自噬基因LC3的影响。方法:取对数生长期的宫颈癌SiHa细胞加入不同浓度的TGF-β1和SIS3干预24小时后收取细胞,采用实时荧光定量PCR法及免疫印迹法检测自噬基因LC3在mRNA水平及蛋白水平上的表达量变化。结果:不同浓度的TGF-β1作用SiHa细胞24小时后,随TGF-β1浓度升高,LC3 mRNA及蛋白的表达量逐渐增高（P＜0.05）。不同浓度的SIS3作用SiHa细胞24小时后,随SIS3浓度升高,LC3 mRNA及蛋白的表达量逐渐降低（P＜0.05）。结论:外源性的TGF-β1/Smad4通路激活剂TGF-β1可使宫颈癌SiHa细胞自噬蛋白LC3 mRNA和蛋白表达量升高,诱导宫颈癌SiHa细胞发生自噬;外源性的TGF-β1/Smad4通路抑制剂SIS3可使宫颈癌SiHa细胞自噬蛋白LC3 mRNA和蛋白表达量降低,抑制宫颈癌SiHa细胞发生自噬;且随TGF-β1和SIS3浓度的增加,LC3的表达量出现变化,具有一定的浓度依赖性。     

肺癌A549细胞诱导RAW264.7破骨细胞分化中AMPK信号通路的作用

目的:探讨AMPK信号通路在体外肺癌细胞诱导破骨细胞分化中的作用。方法:将肺癌A549细胞与RAW264.7细胞共培养后随机分为阴性对照组、阳性对照组、AICAR组,药物干预后行TRAP染色观察破骨细胞的分化,流式细胞仪观察破骨细胞细胞凋亡情况,qPCR检测破骨细胞AMPK、mTOR和CTSK mRNA的表达,Western blot检测破骨细胞AMPK、p-AMPK、mTOR和p-mTOR蛋白的表达。结果:与阴性对照组比较,AICAR组破骨细胞数明显减少,差异具有统计学意义（P＜0.05）;对诱导破骨细胞凋亡的作用无差异;上调AMPK的mRNA和蛋白表达,下调mTOR的mRNA和蛋白表达,差异具有统计学意义（P＜0.05）。结论:AICAR可以抑制肺癌细胞诱导破骨细胞分化,而AMPK/mTOR信号通路可能参与了肺癌细胞诱导破骨细胞分化过程。     

miR-34 a通过激活AMPK/mTOR通路增强鼻咽癌细胞顺铂敏感性

目的:探讨微小RNA(microRNA,miR)-34a对鼻咽癌细胞顺铂敏感性的影响及其机制.方法:采用实时荧光定量PCR法检测鼻咽癌顺铂耐药HNE1/DDP细胞和亲本HNE1细胞中miR-34a的表达水平.将HNE1/DDP细胞分为未转染组(正常培养)、miR-NC组(转染阴性对照)和miR-34a组(转染miR-3...     

Propofol inhibits the malignant development of osteosarcoma U2OS cells via AMPK/FΟΧO1-mediated autophagy

It has previously been reported that propofol regulates the development of human osteosarcoma (OS). However, the specific molecular mechanisms underlying the effect of propofol on OS remain poorly understood. Therefore, the aim of the present study was to explore the effects of propofol on OS U2OS cells and the potential underlying mechanism. The Cell Counting Kit-8 and colony formation assays were performed to assess cell viability and proliferation. Furthermore, cell apoptosis was assessed using the TUNEL assay and western blotting. Wound healing and Transwell assays were performed to evaluate OS cell migration and invasion abilities, respectively. The protein expression levels of epithelial-mesenchymal transition (EMT)-, autophagy- and adenosine monophosphate-activated protein kinase (AMPK)/FOXO1 signaling pathway-related proteins were also determined using western blotting. The results demonstrated that propofol significantly reduced the viability of OS cells and promoted autophagy in a dose-dependent manner. Moreover, cell treatment with propofol significantly enhanced the protein expression levels of phosphorylated (p)-AMPK and FOXO1, while decreasing the protein levels of p-FOXO1. Furthermore, treatment with propofol significantly suppressed cell viability, migration and invasion abilities and the EMT of OS cells, and potentially promoted cell apoptosis via inducing autophagy via the AMPK/FOXO1 signaling pathway. In summary, the present study indicated that propofol potentially had an inhibitory effect on the development of OS cells via AMPK/FOXO1-mediated autophagy. These results have therefore provided an experimental basis for further studies into the therapeutic effect of propofol on OS.     

MYG1 promotes proliferation and inhibits autophagy in lung adenocarcinoma cells via the AMPK/mTOR complex 1 signaling pathway

Melanocyte proliferating gene 1 (MYG1) is an exonuclease that participates in RNA processing and is required for normal mitochondrial function. However, its role in tumorigenesis remains unknown. The present study aimed to investigate the role of MYG1 and its underlying mechanisms in human lung adenocarcinoma (LUAD). The expression levels of MYG1 in tumor tissues of patients with LUAD were obtained from public cancer databases and analyzed using the UALCAN online software. The association between MYG1 expression levels and the prognosis of patients with LUAD was analyzed using the Kaplan-Meier plotter. In addition, the role of MYG1 in the LUAD A549 and H1993 cell lines was determined by knocking down MYG1 expression with a specific small interfering RNA or by overexpressing it with a MYG1-containing plasmid. The results demonstrated that MYG1 expression levels were upregulated in LUAD tissues compared with those in normal lung tissues from healthy subjects, and high MYG1 expression levels were associated with an unfavorable prognosis. MYG1 promoted the proliferation, migration and invasion of A549 and H1993 cells. In addition, MYG1 inhibited autophagy via the AMP-activated protein kinase/mTOR complex 1 signaling pathway. Collectively, the present results suggested that MYG1 may serve an oncogenic role in LUAD and may be a potential therapeutic target for LUAD.     

臭牡丹总黄酮通过Keap1/Nrf2/ARE信号通路对胃癌SGC7901细胞增殖、迁移和侵袭的影响

目的:探讨臭牡丹总黄酮(total flavone of clerodendrum bungei,TFCB)通过Keap1/Nrf2/ARE信号通路对胃癌SGC7901细胞增殖、迁移和侵袭的影响。方法:用臭牡丹总黄酮溶液干预人胃癌SGC7901细胞,然后采用MTT法检测TFCB对SGC7901细胞增殖能力的影响;划痕修复及Transwell小室侵袭实验检测TFCB对SGC7901细胞迁移和侵袭能力的影响;Western blot及RT-PCR法检测TFCB对SGC7901细胞Keap1、Nrf2及maf蛋白及mRNA表达的影响。结果:低、中、高剂量组TFCB均显著抑制了SW620细胞的增殖、迁移和侵袭,随着药物干预浓度的增加,抑制程度逐渐增加。与空白对照组比较,低剂量干预组TFCB处理后Nrf2及maf蛋白相对表达量均显著下降(P＜0.05),Keap1蛋白相对表达量显著升高(P＜0.05),但Keap1、Nrf2及maf mRNA表达量无显著的统计学差异(P＞0.05);高中剂量干预组TFCB处理后Nrf2及maf蛋白及mRNA相对表达量亦显著下降,Keap1蛋白及mRNA表达量显著升高,并且在高中低剂量干预组间Keap1、Nrf2及maf蛋白及mRNA相对表达量均有统计学差异(P＜0.05)。结论:TFCB可明显抑制人胃癌SGC7901细胞的增殖、迁移和侵袭,且其作用机制可能与TFCB阻滞Keap1-Nrf2-ARE信号通路的信号传导,抑制通路蛋白及mRNA合成有关。     

LncRNA GAS6 antisense RNA 1 facilitates the tumorigenesis of clear cell renal cell carcinoma by regulating the AMP-activated protein kinase/mTOR signaling pathway

The role of GAS6 antisense RNA 1 (GAS6-AS1) in clear cell renal cell carcinoma (ccRCC) remains unclear. The aim of the present study was to investigate the role and molecular mechanisms of GAS6-AS1 in the progression of ccRCC. GAS6-AS1 was found to be upregulated in ccRCC tissues and cell lines, and patients with high GAS6-AS1 expression levels exhibited a poor prognosis. Small interfering (si)RNA GAS6-AS1 inhibited the activity, colony formation, invasiveness and glycolysis of OSRC-2 and SW839 cells, while GAS6-AS1 overexpression promoted these functions. Moreover, si-GAS6-AS1 increased the phosphorylation level of AMP-activated protein kinase (AMPK) and decreased that of mTOR, as well as decreasing proliferating cell nuclear antigen (PCNA), MMP-2 and hexokinase-2 (HK2) expression, which were reversed by inhibiting AMPK or mTOR. In addition, the silencing of GAS6-AS1 suppressed the growth of xenografted tumors and attenuated the expression of PCNA, MMP-2 and HK2 in tumor tissues. These findings conclude that GAS6-AS1 regulated the proliferation, invasiveness and glycolysis of ccRCC cells by regulating the AMPK/mTOR signaling pathway, and suggest that GAS6-AS1 may be a potential therapeutic target for ccRCC.     

姜黄素调控Notch信号通路对肺癌干细胞增殖及凋亡的影响

目的:研究姜黄素对肺癌干细胞增殖及凋亡的影响。方法:利用免疫磁珠标记肺癌表面标记物乙醛脱氢酶1(ALDH1),从肺癌A549细胞系中分离肺癌干细胞;MTT实验检测姜黄素对肺癌干细胞增殖的影响;流式细胞仪检测姜黄素对肺癌干细胞凋亡的影响;Western blot检测Notch1和Hes1蛋白的表达情况;抑制剂γ-分泌酶抑制Notch信号通路研究对肺癌干细胞增殖及凋亡的影响。结果:利用免疫磁珠分选法分选出肺癌细胞系A549中ALDH1+肺癌干细胞。MTT检测结果显示,姜黄素能够呈浓度依赖性的抑制肺癌干细胞的增殖;经姜黄素处理后的肺癌干细胞,与对照组相比,凋亡率明显升高,Notch1和Hes1蛋白的表达明显下降。经γ-分泌酶抑制剂处理肺癌干细胞后,实验结果显示,γ-分泌酶抑制剂通过下调Notch1和Hes1蛋白的表达调控Notch信号通路抑制肺癌干细胞的增殖,诱导其凋亡。结论:姜黄素抑制肺癌干细胞的增殖,诱导其凋亡与Notch信号通路有关。     

树突状细胞和PD-1/PD-L1通路相互作用的研究进展

树突状细胞（dendritic cells,DCs）是最强大的抗原呈递细胞,具有引起抗原特异性反应的能力,并且在调节免疫耐受中起重要作用。基于DCs的癌症免疫治疗已有二十多年的研究,是最重要的抗癌免疫疗法之一,但单一疗法在癌症治疗方面效果有限,需要继续深入研究以提高DCs的抗肿瘤作用,并寻找与其他方法协同治疗的方案。靶向于免疫检查点的单克隆抗体在公认的实体和血液恶性肿瘤的临床试验中均获得了成功,并在2018年获得诺贝尔医学奖。免疫检查点阻断疗法旨在解除肿瘤的免疫抑制以增强免疫系统的抗肿瘤作用,其中针对PD-1/PD-L1免疫检查点的阻断治疗已引起相当多的关注。虽然免疫检查点阻断治疗的效果令人鼓舞,但在尚未满足医疗需求的领域中仍需要进一步研究以提高临床效率。理论上DCs的PD-L1和/或T细胞的PD-1基因沉默或表达下调,可增强DCs启动有效的T细胞抗肿瘤反应。因此,将特异性DCs的抗肿瘤免疫治疗与PD-1/PD-L1信号通路阻断相结合的治疗方法是一个有希望的探索之路。本文主要综述DCs的功能、PD-1/PD-L1通路的抗肿瘤作用、DCs和PD-1/PD-L1信号通路相互作用在目前的研究现状以及前景。     

Nuclear orphan receptor NR2F6 confers cisplatin resistance in epithelial ovarian cancer cells by activating the Notch3 signaling pathway

The primary challenge facing treatment of epithelial ovarian cancer (EOC) is the high frequency of chemoresistance, which severely impairs the quality of life and survival of patients with EOC. Our study aims to investigate the mechanisms by which upregulation of NR2F6 induces chemoresistance in EOC. The biological roles of NR2F6 in EOC chemoresistance were explored in vitro by Sphere, MTT and AnnexinV/PI assay, and in vivo using an ovarian cancer orthotopic transplantation model. Bioinformatics analysis, luciferase assay, CHIP and IP assays were performed to identify the mechanisms by which NR2F6 promotes chemoresistance in EOC. The expression of NR2F6 was significantly upregulated in chemoresistant EOC tissue, and NR2F6 expression was correlated with poorer overall survival. Moreover, overexpression of NR2F6 promotes the EOC cancer stem cell phenotype; conversely, knockdown of NR2F6 represses the EOC cancer stem cell phenotype and sensitizes EOC to cisplatin in vitro and in vivo. Our results further demonstrate that NR2F6 sustains activated Notch3 signaling, resulting in chemoresistance in EOC cells. Notably, NR2F6 acts as an informative biomarker to identify the population of EOC patients who are likely to experience a favorable objective response to gamma-secretase inhibitors (GSI), which inhibit Notch signaling. Therefore, concurrent inhibition of NR2F6 and treatment with GSI and cisplatin-based chemotherapy may be a novel therapeutic approach for NR2F6-overexpressing EOC. In summary, we have, for the first time, identified an important role for NR2F6 in EOC cisplatin resistance. Our study suggests that GSI may serve as a potential targeted treatment for patients with NR2F6-overexpressing EOC.