Correlation research of Runt-related transcription factor 2 with proliferation genes, tumor suppressor genes and angiogenesis molecules in colon cancer lesions

Objective: To investigate the correlation of Runt-related transcription factor 2 (RunX2) with proliferation genes, tumor suppressor genes and angiogenesis molecules in colon cancer lesions. Methods: A total of 90 patients with primary colon cancer were enrolled in colon cancer group, 68 patients with benign colon polyps were enrolled in colon polyps group, the differences in the expression levels of RunX2, proliferation genes, tumor suppressor genes and angiogenesis molecules in the two groups of lesions were compared, and Pearson test was further used to evaluate the correlation of RunX2 expression level with proliferation gene, tumor suppressor gene and angiogenesis molecule expression levels in colon cancer tissues. Results: RunX2 mRNA expression level in the lesions of colon cancer group was higher than that of colon polyps group. Proliferation genes GTPBP4, HOXB7, ZNF331, ADAM17 and HSP60 mRNA expression levels in the lesions of colon cancer group were higher than those of colon polyps group;tumor suppressor genes ATF3, FOXN3, OTUD1 and NDRG2 mRNA expression levels were lower than those of colon polyps group;angiogenesis molecules Musashi 1, NF-κB, RegⅣ and STAT3 mRNA expression levels were higher than those of colon polyps group. RunX2 mRNA expression level in the colon cancer lesions was directly correlated with the expression levels of the above proliferation genes, tumor suppressor genes and angiogenesis molecules. Conclusion: RunX2 expression is abnormally high in colon cancer lesions, the specific expression level is positively correlated with cancer cell proliferation activity and angiogenesis activity, and it is an important molecular target that can lead to the occurrence and development of colon cancer.

Mechanism of ELL-associated factor 2 and vasohibin 1 regulating invasion,migration,and angiogenesis in colorectal cancer

BACKGROUND As a novel endogenous anti-angiogenic molecule, vasohibin 1(VASH1) is not only expressed in tumor stroma, but also in tumor tissue. Moreover, studies have shown that VASH1 may be a prognostic marker in colorectal cancer(CRC). Knockdown of VASH1 enhanced transforming growth factor-β1(TGF-β1)/Smad3 pathway activity and type Ⅰ/Ⅲ collagen production. Our previous findings suggest that ELL-associated factor 2(EAF2) may play a tumor suppressor and protective role in the development and progression of CRC by regulating signal transducer and activator of transcription 3(STAT3)/TGF-β1 signaling pathway. However, the functional role and mechanism of VASH1-mediated TGF-β1 related pathway in CRC has not been elucidated.AIM To investigate the expression of VASH1 in CRC and its correlation with the expression of EAF2. Furthermore, we studied the functional role and mechanism of VASH1 involved in the regulation and protection of EAF2 in CRC cells in vitro.METHODS We collected colorectal adenocarcinoma and corresponding adjacent tissues to investigate the clinical expression of EAF2 protein and VASH1 protein in patients with advanced CRC. Following, we investigated the effect and mechanism of EAF2 and VASH1 on the invasion, migration and angiogenesis of CRC cells in vitro using plasmid transfection.RESULTS Our findings indicated that EAF2 was down-regulated and VASH1 was upregulated in advanced CRC tissue compared to normal colorectal tissue. KaplanMeier survival analysis showed that the higher EAF2 Level group and the lower VASH1 Level group had a higher survival rate. Overexpression of EAF2 might inhibit the activity of STAT3/TGF-β1 pathway by up-regulating the expression of VASH1, and then weaken the invasion, migration and angiogenesis of CRC cells.CONCLUSION This study suggests that EAF2 and VASH1 may serve as new diagnostic and prognostic markers for CRC, and provide a clinical basis for exploring new biomarkers for CRC. This study complements the mechanism of EAF2 in CRC cells, enriches the role and mechanism of CRC cellderived VASH1, and provides a new possible subtype of CRC as a therapeutic target of STAT3/TGF-β1 pathway.

Overexpression of metastasis-associated in colon cancer 1 predicts a poor outcome of hepatitis B virus-related hepatocellular carcinoma

AIM: To investigate the intratumoral expression of metastasis-associated in colon cancer 1 (MACC1) and c-Met and determine their clinical values associated with hepatitis B virus (HBV)-related hepatocellular carcinoma (HCC). METHODS: A retrospective study admitted three hundred fifty-four patients with HBV-related HCC. The expression and distribution of MACC1 and c-Met were assessed by quantitative real-time polymerase chain reaction and immunohistochemistry staining. Prognostic factors influencing survival, metastasis and recurrence were assessed. RESULTS: Intratumoral MACC1 level was found to be associated with HCC disease progression. Both median tumor-free survival (TFS) and overall survival (OS) were significantly shorter in the postoperative HCC patients with high intratumoral MACC1 expression, as compared to those with low intratumoral MACC1 levels (TFS: 34 mo vs 48.0 mo, P < 0.001; OS: 40 mo vs 48 mo, P < 0.01). Multivariable analysis indicated that high MACC1 expression or co-expression with c-Met were independent predictors for HCC clinic outcome (P < 0.001). CONCLUSION: High intratumoral MACC1 expression can be associated with enhanced tumor progression and poor outcome of HBV-related HCC. MACC1 may serve as a prognostic biomarker for postoperative HCC.

Upregulation of miR-34c after silencing E2F transcription factor 1 inhibits paclitaxel combined with cisplatin resistance in gastric cancer cells

BACKGROUND MicroRNA 34c(miR-34c)has been reported to be associated with malignant types of cancer,however,it remains unknown whether miR-34c is involved in chemoresistance in gastric cancer(GC).AIM To investigate the effect of miR-34c and its upstream transcription factor E2F1 on paclitaxel combined with cisplatin resistance in GC cells.METHODS Paired GC tissues and adjacent normal tissues were randomly sampled from 74 GC patients.miR-34c and E2F1 were detected by real-time quantitative PCR(qPCR)and Western blot.In addition,the drug resistance of GC cells to paclitaxel and cisplatin was induced by concentration gradient increasing methods,and changes in miR-34c and E2F1 during this process were measured.Furthermore,E2F1 and miR-34c overexpression or underexpression vectors were constructed and transfected into drug-resistant GC cells.MTT was employed to test the sensitivity of cells to paclitaxel combined with cisplatin,qPCR was adopted to detect the expression of miR-34c,Western blot was applied to detect the expression levels of E2F1,drug resistance-related proteins and apoptosis-related proteins,and flow cytometry was used for the determination of cell apoptosis and cell cycle status.RESULTS E2F1 was overexpressed while miR-34c was underexpressed in GC.After inducing GC cells to be resistant to paclitaxel and cisplatin,E2F1 expression increased while miR-34c expression decreased.Both silencing E2F1 and overexpressing miR-34c could increase the sensitivity of drug-resistant GC cells to paclitaxel combined with cisplatin,promote cell apoptosis and inhibit cell proliferation.Among which,silencing E2F1 could reduce the expression of drug resistance-related proteins and apoptosis-related proteins,while over-expression of miR-34c could upregulate the expression of apoptosis-related proteins without affecting the expression of MDR-1,MRP and other drug resistance-related proteins.Rescue experiments demonstrated that inhibiting miR-34c could significantly weaken the sensitization of drug resistant cells,and Si E2F1 to paclitaxel combined with cisplatin.CONCLUSION E2F1 inhibits miR-34c to promote the proliferation of GC cells and enhance the resistance to paclitaxel combined with cisplatin,and silencing E2F1 is conducive to improving the efficacy of paclitaxel combined with cisplatin in GC cells.

Transcription factors specificity protein and nuclear receptor 4A1 in pancreatic cancer

Specificity protein(Sp)transcription factors(TFs)Sp1,Sp3 and Sp4,and the orphan nuclear receptor 4A1(NR4A1)are highly expressed in pancreatic tumors and Sp1 is a negative prognostic factor for pancreatic cancer patient survival.Results of knockdown and overexpression of Sp1,Sp3 and Sp4 in pancreatic and other cancer lines show that these TFs are individually pro-oncogenic factors and loss of one Sp TF is not compensated by other members.NR4A1 is also a prooncogenic factor and both NR4A1 and Sp TFs exhibit similar functions in pancreatic cancer cells and regulate cell growth,survival,migration and invasion.There is also evidence that Sp TFs and NR4A1 regulate some of the same genes including survivin,epidermal growth factor receptor,PAX3-FOXO1,α5-andα6-integrins,β1-,β3-andβ4-integrins;this is due to NR4A1 acting as a cofactor and mediating NR4A1/Sp1/4-regulated gene expression through GC-rich gene promoter sites.Several studies show that drugs targeting Sp downregulation or NR4A1 antagonists are highly effective inhibitors of Sp/NR4A1-regulated pathways and genes in pancreatic and other cancer cells,and the triterpenoid celastrol is a novel dual-acting agent that targets both Sp TFs and NR4A1.

Myocardin-related transcription factor A cooperates with brahmarelated gene 1 to activate P-selectin transcription

Expression of P-selectin in injured or activated endothelia cells serves as a permissive step towards leukocyte recruitment and perpetuation of inflammation in the pathogenesis of atherosclerosis.P-selectin can be induced by pro-inflammatory stimuli via the transcription factor NF-κB,but the epigenetic mechanisms remain incompletely understood.Previously we reported that myocardin-related transcription factor A（MRTF-A）mediates the transactivation of a slew of adhesion molecules by oxidized low-density lipoprotein（oxLDL）,likely through a crosstalk with brahma-related gene 1（BRGl）,a chromatin remodeling protein.Here,we show that MRTF-A was both sufficient and necessary for the transactivation of P-selectin gene in endothelial cells treated with TNF-α.Depletion of MRTF-A using small interfering RNA（siRNA）abrogated the binding of BRGl on the P-selectin promoter.Overexpression of BRG1 up-regulated the activity of P-selectin promoter activity while BRGl knockdown attenuated P-selectin expression.Finally,BRGl silencing suppressed the accumulation of acetylated histone H3 and methylated histone H3K4,and altered the binding of NF-κB on the P-selectin promoter.Therefore,our data demonstrate an essential role for MRTF-A and BRGl in P-selectin transactivation in endothelial cells.

TNF-α regulates the expression of transcription factor FoxM1 in bladder cancer and cystitis glandularis

Objective:To study the expression and significance of TNF-transcription factor M1(FoxM1)in bladder cancer and cystitis glandularis(CG).Methods:A total of 30 patients with bladder cancer admitted to our hospital and received surgical treatment from February 2017 to February 2019 were included for the study.During surgery,bladder cancer tissues and normal bladder tissues(tissues more than 5cm away from the cancer tissue center)were collected.Meanwhile,we retained 30 CG tissues from 30 CG patients who received surgical treatment in our hospital at the same time.Bladder cancer cell lines RT4 and BIU87 were cultured and treated with TNF-αat different concentrations(0nM,1nM,5nM,10nM).The expressions of TNF-αand FoxM1 in different bladder tissues were analyzed,and the effects of different concentrations of TNF-αon the expressions of FoxM1 in bladder cancer cell lines and cyclin B1 and cyclin D1 in bladder cancer cell lines were analyzed.Results:The expression levels of TNF-αand FoxM1 in normal bladder,CG and bladder cancer tissues were gradually increased,and univariate analysis of variance showed that the differences between groups were statistically significant(all P<0.05).FoxM1 expression in bladder cancer cell lines treated with TNF-αat concentrations of 0nM,1nM,5nM and 10nM showed a gradual increase trend,and one-way anova showed that the difference between the groups was statistically significant(all P<0.05).After the treatment of bladder cancer cell lines with TNF-αat concentrations of 0nM,1nM,5nM and 10nM,the expression of cyclin B1 and cyclin D1 showed a gradually increasing trend,and one-way anova showed that the difference between groups was statistically significant(all P<0.05).Conclusion:TNF-αmay play a crucial role in the occurrence and development of CG by regulating the expression of transcription factor FoxM1,and then affecting the expression of cyclin B1 and cyclin D1,which is worthy of clinical attention.

Keap1/Nrf2信号通路在非小细胞肺癌氧化应激机制中的作用

目的检测非小细胞肺癌(NSCLC)组织中Kelch样环氧氯丙烷相关蛋白-1(Keap1)、核因子E2相关因子2(Nrf2)蛋白表达水平,分析其与临床病理参数、氧化应激指标的相关性,为临床治疗提供潜在靶点。方法选取2017年4月至2020年4月郑州市第三人民医院收治的100例NSCLC患者为研究对象,免疫组化法检测并比较癌组织、癌旁组织中Keap1、Nrf2蛋白表达水平;比较不同临床病理参数患者Keap1、Nrf2蛋白表达水平;比较不同Keap1、Nrf2蛋白表达患者血清超氧化物歧化酶(SOD)、诱导型一氧化氮合酶(iNOS)、丙二醛(MDA)水平,并采用Spearman法分析SOD、i NOS、MDA与临床病理参数的相关性,采用Pearson法分析SOD、iNOS、MDA与Keap1、Nrf2蛋白水平的的相关性;比较不同Keap1、Nrf2蛋白表达患者的生存率。结果癌组织、癌旁组织Keap1蛋白阳性率分别为77.00%、53.00%,Nrf2蛋白阳性率分别为74.00%、45.00%,Keap1蛋白OD值分别为0.41±0.07、0.33±0.05,Nrf2蛋白OD值分别为0.39±0.06、0.31±0.06,癌组织Keap1、Nrf2蛋白阳性率及OD值明显高于癌旁组织,差异均有统计学意义(P<0.05);Keap1蛋白阳性表达与病理分级、T分期呈正相关(r=0.569、0.574,P<0.01),Nrf2蛋白阳性表达与病理分级、T分期呈正相关(r=0.527、0.539,P<0.01);Keap1蛋白阳性者、阴性者的血清SOD水平分别为(86.78±9.14)U/m L、(115.07±12.13)U/m L,MDA水平分别为(4.42±0.82)mmol/L、(3.24±0.56)mmol/L,i NOS水平分别为(22.74±4.31)U/m L、(15.59±3.02)U/mL,Nrf2蛋白阳性者、阴性者血清SOD水平分别为(84.94±9.12)U/mL、(117.06±12.37)U/mL,MDA水平分别为(4.48±0.85)mmol/L、(3.21±0.52)mmol/L,iNOS水平分别为(23.02±4.28)U/mL、(15.64±3.10)U/mL,Keap1、Nrf2蛋白阳性者血清SOD水平明显低于阴性者,MDA、iNOS水平明显高于阴性者,差异均有统计学意义(P<0.05);Keap1、Nrf2蛋白表达与SOD呈负相关(r=-0.612、-0.614,P<0.01),与MDA、iNOS呈正相关(r_(Keap1)=0.609、0.614,P<0.01;r_(Nrf2)=0.610、0.608,P<0.01);Keap1、Nrf2蛋白阳性表达者3年生存率为85.71%、83.78%,明显低于阴性表达者的95.65%、100.00%,差异均有统计学意义(P<0.05)。结论NSCLC组织中Keap1、Nrf2蛋白表达水平升高,且与病理分级、T分期密切相关,该信号通路活化可参与氧化应激反应过程,且对预判患者预后具有一定临床意义。

结直肠癌组织中lncRNA CCAT2和NDRG1的表达及意义

目的探讨结直肠癌(CRC)患者组织中长链非编码RNA(lncRNA)结肠癌相关转录物2(CCAT2)、N-myc下游调节基因(NDRG)1的表达及与临床病理特征及预后的关系。方法选取2018年2月至2020年2月在南通市中医院行CRC根治性手术治疗的96例CRC患者作为研究对象。采用实时荧光定量PCR检测组织中lncRNA CCAT2、NDRG1 mRNA表达,采用免疫组织化学检测组织中NDRG1蛋白表达,采用Kaplan-Meier曲线分析不同lncRNA CCAT2、NDRG1 mRNA表达组患者的预后差异,采用多因素Cox回归分析CRC预后影响因素。结果与癌旁组织比较,癌组织中lncRNA CCAT2表达较高,NDRG1 mRNA表达及蛋白阳性率较低,差异有统计学意义(P<0.05)。与TNM分期Ⅰ~Ⅱ期、无淋巴结转移比较,TNM分期Ⅲ期、有淋巴结转移的CRC患者癌组织中lncRNA CCAT2表达较高,NDRG1 mRNA表达较低(P<0.05)。lncRNA CCAT2高表达组3年累积生存率低于lncRNA CCAT2低表达组,而NDRG1 mRNA高表达组3年累积生存率高于NDRG1 mRNA低表达组,差异有统计学意义(P<0.05)。TNM分期、淋巴结转移,lncRNA CCAT2、NDRG1 mRNA是CRC预后影响因素(P<0.05)。结论CRC组织中lncRNA CCAT2表达升高,NDRG1表达降低,二者均参与CRC肿瘤的进展,可作为评估CRC患者生存预后的新指标。

runt相关转录因子1在心血管疾病中的研究进展

runt相关转录因子1 (runt-related transcription factor 1,RUNX1)是一种转录因子,它广泛地参与到生物体细胞的增殖,分化等过程中,既往对它的研究主要集中在造血、肿瘤等方面。近年来,人们越来越关注它在心血管发育和心血管疾病中的潜在作用。本文将回顾近年来在心血管领域对RUNX1的研究,探讨它可能的作用机制,为今后的研究提供线索。

前列腺癌组织LncRNA NEAT1、miR-377表达与患者5年生存情况的关系

目的探究前列腺癌组织长链非编码RNA核富集转录本1(LncRNA NEAT1)、微小RNA-377(miR-377)表达与患者5年生存的关系。方法选取2016年7月至2018年8月在邯郸市中心医院住院治疗的98例前列腺癌患者,检测前列腺癌组织及癌旁组织中LncRNA NEAT1、miR-377表达;记录患者5年内生存情况。分析前列腺癌组织LncRNA NEAT1、miR-377与临床病理特征、患者5年生存的关系以及二者的相关性,分析影响患者5年内生存的危险因素及LncRNA NEAT1、miR-377对患者5年内生存的预测价值。结果与癌旁组织比较,前列腺癌组织LncRNA NEAT1显著升高、miR-377显著降低(P<0.05);Ⅲ~Ⅳ期、Gleason评分>7分、血清前列腺特异性抗原(PSA)>10μg/L的患者前列腺癌组织LncRNA NEAT1分别高于Ⅰ~Ⅱ期、Gleason评分≤7分、血清PSA≤10μg/L的患者,miR-377分别低于Ⅰ~Ⅱ期、Gleason评分≤7分、血清PSA≤10μg/L的患者(P<0.05);前列腺癌组织LncRNA NEAT1与miR-377表达呈负相关(P<0.05);LncRNA NEAT1高表达、miR-377低表达患者5年累积生存率分别显著低于LncRNA NEAT1低表达、miR-377高表达患者(P<0.05);与生存组比较,死亡组前列腺癌组织LncRNA NEAT1显著升高,miR-377显著降低(P<0.05);前列腺癌组织LncRNA NEAT1高表达、miR-377低表达、TNM分期Ⅲ~Ⅳ期、Gleason评分>7分、血清PSA水平>10μg/L均是影响前列腺癌患者5年内生存的独立危险因素(P<0.05);前列腺癌组织LncRNA NEAT1和miR-377二者联合预测患者5年内生存的曲线下面积高于LncRNA NEAT1、miR-377各自单独预测(P<0.05)。结论前列腺癌组织LncRNA NEAT1呈高表达、miR-377呈低表达,对患者5年内生存具有较高的预测价值。

血清外泌体SUMO1P3和MALAT1对三阴性乳腺癌患者术后复发转移的预测价值

目的探讨血清外泌体小泛素样修饰子1伪基因3(SUMO1P3)和肺腺癌转移相关转录本1(MALAT1)对三阴性乳腺癌(TNBC)患者术后复发转移的预测价值。方法选取2016年至2020年行手术切除的224例TNBC患者作为研究对象,根据随访期内复发及转移情况分为非复发转移组和复发转移组,收集两组患者的临床病历资料。采用实时荧光定量PCR(qPCR)检测术前血清外泌体SUMO1P3和MALAT1表达,绘制受试者工作特征(ROC)曲线评价SUMO1P3和MALAT1对TNBC术后复发转移的预测价值。采用多因素Logistic回归模型分析影响TNBC术后复发转移的因素。结果共72例患者出现复发或转移。224例TNBC患者SUMO1P3和MALAT1相对表达量分别为3.06±0.68和2.75±0.66,其中复发转移组SUMO1P3和MALAT1相对表达量为3.44±0.67和3.46±0.80,均显著高于非复发转移组的2.88±0.61和2.33±0.48(P<0.001)。ROC曲线结果显示,血清外泌体SUMO1P3和MALAT1联合检测的曲线下面积(AUC)=0.842(95%CI:0.787~0.887),特异度为0.790,灵敏度为0.806,且两指标联合预测的效能优于SUMO1P3和MALAT1单独预测(P<0.05)。多因素Logistic回归模型结果显示,SUMO1P3(OR=4.463,95%CI:2.125~9.372)和MALAT1(OR=9.103,95%CI:4.462~18.573)表达是影响TNBC术后复发转移的独立因素(P<0.05)。结论血清外泌体SUMO1P3和MALAT1与TNBC患者预后密切相关,两指标联合检测对TNBC术后复发或转移具有较高的预测价值。

胃癌组织中SDF-1、HER2及Slug表达与患者临床病理特征的相关性

目的分析基质细胞衍生因子1(SDF-1)、人表皮生长因子受体2(HER2)、锌指转录因子(Slug)在胃癌组织内的表达及与患者临床病理特征间的关系。方法选取73例胃癌患者,采集其癌组织与癌旁正常组织,以免疫组织化学法检测对比两者SDF-1、HER2及Slug的表达差异;另收集患者的年龄等资料,统计分析SDF-1、HER2及Slug表达与胃癌患者各项临床病理特征间的联系。结果癌组织的SDF-1、HER2、Slug阳性表达率高于癌旁正常组织,差异有统计学意义(P<0.05)。SDF-1、HER2、Slug阳性表达与胃癌患者的年龄、性别无关(P>0.05),与患者的临床分期、淋巴结转移、分化程度有关(P<0.05)。结论SDF-1、HER2、Slug在胃癌组织内呈异常高表达,且其参与胃癌的侵袭、发展过程。

抗SOX1抗体相关神经系统副肿瘤综合征的临床异质性分析

目的总结抗Y染色体性别决定区相关高迁移率超家族1(SRY⁃like high⁃mobility group superfamily of developmental transcription factors 1,SOX1)抗体相关神经系统副肿瘤综合征(paraneoplastic neurological syndrome,PNS)的临床表现、影像学特征和预后。方法选取2019年1月至2023年1月首都医科大学附属北京友谊医院抗SOX1抗体相关PNS患者6例,回顾性分析患者的相关资料。结果6例患者中,男5例、女1例,年龄42~76岁。6例患者中,感觉运动周围神经病合并小细胞肺癌(small cell lung cancer,SCLC)2例、边缘叶脑炎2例、副肿瘤小脑变性1例和Lam⁃bert-Eaton肌无力综合征合并SCLC 1例。6例患者血清抗SOX1抗体均阳性,其中合并其他抗体阳性1例、合并脑脊液抗SOX1抗体阳性2例。6例患者神经系统症状均早于肿瘤发现前,均于发现抗SOX1抗体后行肿瘤筛查,其中3例SCLC患者进行治疗后病情较稳定;截至随访时间,余3例患者经检查未发现肿瘤(其中病例5随访>2年,病例2和病例4随访<2年),进行治疗后,症状未见明显进展。结论抗SOX1抗体相关PNS患者存在高度临床异质性,部分患者伴发肿瘤。可增加副肿瘤抗体的检测,以提高早期诊断潜在肿瘤的可能性。

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。

P40及TTF-1共表达非小细胞肺癌7例临床病理分析

目的:P40及甲状腺转录因子1(thyroid transcription factor-1,TTF-1)被广泛应用于肺鳞状细胞癌和肺腺癌的鉴别诊断,两者共表达的非小细胞肺癌(non-small cell lung cancer,NSCLC)病例则极为罕见。本研究旨在探讨P40及TTF-1共表达NSCLC的临床及病理学特点。方法:收集山东大学附属威海市立医院2019年5月至2023年9月确诊的7例P40及TTF-1共表达NSCLC患者,分析其临床及病理学特点,采用基因检测及免疫组织化学染色检测相关指标表达情况,并随访患者。结果:7例患者均为男性,年龄57~80(中位数71)岁,除1例外其余6例均有吸烟史;6例患者肿瘤为外周型,1例为中央型;肿物长径为2.0~8.5(中位数5.8)cm。5例患者出现肿瘤转移。2例病死患者第1次确诊至死亡的时间间隔分别为12和55个月。HE染色示肿瘤分化差,肿瘤细胞排列紧密,呈片状、巢团样分布,可见坏死及炎细胞浸润,肿瘤细胞大小不一,形态多样,细胞质多呈嗜酸性,细胞核大,形状不规则,核仁易见。免疫组织化学染色可见P40、TTF-1、P63、细胞角蛋白(cytokeratin,CK)7、CK5/6广泛阳性表达,而天冬氨酸肽酶A(Napsin A)基本上为阴性表达。基因检测除1例为TP53突变外,其余无突变。结论:P40及TTF-1共表达NSCLC是一种罕见的亚型,其发病率低,但恶性程度高,好发于有吸烟史的老年人,大部分病例发现时即偏向晚期,病理结果显示其为既不属于腺癌也不属于鳞状细胞癌的低分化肿瘤。

血清lncRNA PCAT1、miR-128-3p水平与结肠癌患者病理特征及术后肝转移的关系研究

目的探讨血清长链非编码核糖核酸(LncRNA)前列腺癌相关转录因子1(PCAT1)、微小RNA-128-3p(miR-128-3p)水平与结肠癌患者病理特征及术后肝转移的关系。方法选取2019年2月至2021年1月期间邯郸市中心医院收治的接受手术治疗的157例结肠癌患者(结肠癌组)为研究对象,55例同期健康体检者作为对照组。采用实时荧光定量PCR法检测并比较两组血清LncRNA PCAT1、miR-128-3p表达水平,分析结肠癌患者血清LncRNA PCAT1与miR-128-3p表达水平的相关性,分析血清LncRNA PCAT1、miR-128-3p表达水平与结肠癌临床病理特征的关系。随访3年,统计结肠癌术后肝转移发生率,采用单因素和多因素Logistic回归模型分析结肠癌术后肝转移的危险因素,采用受试者工作特征(ROC)曲线分析血清LncRNA PCAT1、miR-128-3p对结肠癌术后肝转移的预测价值。结果与对照组相比,结肠癌组血清LncRNA PCAT1表达水平升高,miR-128-3p表达水平降低(P<0.05);Pearson相关性分析发现结肠癌患者血清LncRNA PCAT1表达水平与血清miR-128-3p呈负相关(r=-0.661,P<0.001)。不同TNM分期患者血清LncRNA PCAT1表达水平比较,Ⅰ期<Ⅱ期<Ⅲ期;血清miR-128-3p表达水平比较,Ⅰ期>Ⅱ期>Ⅲ期(P<0.05)。无淋巴结转移、未侵犯浆膜层相比,有淋巴结转移、侵犯浆膜层的结肠癌患者血清LncRNA PCAT1表达水平均较高,血清miR-128-3p表达水平均较低(P<0.05)。随访3年,结肠癌术后肝转移发生率为25.48%(40/157)。多因素Logistic回归分析显示,TNM分期Ⅲ期、有淋巴结转移、血清LncRNA PCAT1表达水平升高是影响结肠癌术后肝转移的独立危险因素(P<0.05),血清miR-128-3p表达水平升高是保护因素(P<0.05)。ROC曲线分析显示,血清LncRNA PCAT1、miR-128-3p单独及二者联合预测结肠癌术后肝转移的AUC分别为0.761、0.763、0.836,二者联合预测的灵敏度高于单独预测(P<0.05)。结论结肠癌患者血清LncRNA PCAT1高表达、miR-128-3p低表达,两者与TNM分期、淋巴结转移、侵犯浆膜层及术后肝转移密切相关,可作为预测结肠癌术后肝转移的潜在辅助性指标。

TEAD1/TEAD4基因多态性与非贲门胃癌变关系的研究

目的探讨TEA转录因子1(TEAD1)基因单核苷酸多态性(SNP)rs2304733、TEA转录因子4(TEAD4)SNPrs7135838和rs1990330与非贲门胃癌变发病风险的关系。方法采用酶联免疫吸附测定法(ELISA)检测正常对照组血清样本中抗幽门螺杆菌(Hp)的特异性抗体,根据抗体滴度将470例正常对照组分为Hp感染阴性组(n=223)和阳性组(n=247)。在450例非贲门胃癌病例组和470例对照组中,采用聚合酶链式反应-限制性片段长度多态性(PCR-RFLP)技术对各SNP位点进行基因分型,采用非条件性Logistic回归评估各SNP位点与非贲门胃癌变发病风险的关系。结果TEAD1、TEAD4各SNP位点均与Hp感染没有关联;TEAD1 rs2304733与非贲门胃癌的发病风险相关,与携带TT基因型者相比,携带CT基因型及CC基因型者均增加了非贲门胃癌的发病风险(CTvsTT:OR=2.321,95%CI:1.690~3.188;CCvsTT:OR=5.140,95%CI:1.080~24.463);TEAD4 rs1990330与非贲门胃癌发病风险相关,与携带GG基因型者相比,携带GT基因型者增加了非贲门胃癌的发病风险(OR=2.405,95%CI:1.480~3.908);TEAD4 rs7135838与非贲门胃癌的发病风险无关联;TEAD1rs2304733、TEAD4 rs7135838以及rs1990330对非贲门胃癌发病风险存在交互作用(P<0.05)。结论在包头地区汉族人群中,TEAD1 rs2304733、TEAD4 rs1990330在Hp感染中不起主要作用,在非贲门胃癌发病风险中可能起一定作用;TEAD4 rs7135838在Hp感染以及非贲门胃癌发病风险中可能均不起主要作用;TEAD1 rs2304733、TEAD4 rs1990330对非贲门胃癌发病风险的协同效应最强,为最佳交互模型。

Transcription factor PDX-1 in human colorectal adenocarcinoma:A potential tumor marker?

AIM: To examine the expression of pancreatic duodenal homeobox-1 (PDX-1) transcription factor in human colorectal cancer. METHODS: RT-PCR, Western blotting, and immuno-histochemistry were performed to determine the expression pattern of transcription factor PDX-1 in primary colorectal tumor, hepatic metastasis, and benign colon tissue from a single patient. RESULTS: The highest PDX-1 transcription levels were detected in the metastasis material. Lower levels of PDX-1 were found to be present in the primary tumor, while normal colon tissue failed to express detectable levels of PDX-1. Western blot data revealed a PDX-1 expression pattern identical to that of mRNA expression. Immunohistochemistry confirmed high metastasis PDX-1 expression, lower levels in the primary tumor, and the presence of only traces of PDX-1 in normal colon tissue. CONCLUSION: These data argue for further evaluation of PDX-1 as a biomarker for colorectal cancer.

宫颈癌淋巴结转移患者PD-L1与TILs表达水平及其与预后的关系

目的探讨宫颈癌淋巴结转移患者程序性死亡配体-1(PD-L1)、肿瘤浸润淋巴细胞亚群(TILs)表达水平及其与患者预后的关系。方法选取2007年1月至2013年9月在梅州市人民医院诊治并接受宫颈癌根治性切除术后发生淋巴结转移的101例患者作为研究对象。采用免疫组织化学法检测PD-L1、CD4^(+)TILs、CD8^(+)TILs、叉头翼螺旋转录因子3(Foxp3)^(+)TILs表达水平。比较不同PD-L1表达水平患者临床病理特征差异;采用Spearman相关对PD-L1表达水平与TILs密度的相关性进行分析;采用Kaplan-Meier生存分析法分析PD-L1表达水平、TILs密度及密度比值与累计生存率的关系;采用Cox比例风险模型分析患者预后的独立影响因素。结果PD-L1表达于肿瘤细胞的细胞质和(或)细胞膜,阳性表达率为34.65%(35/101);CD4^(+)TILs计数为94(45,190);CD8^(+)TILs计数为63(31,117);FoxP3^(+)TILs计数为6.0(2.5,13.5);FoxP3^(+)TILs/CD8^(+)TILs比值为0.109(0.036,0.193)。PD-L1阳性表达组与PD-L1阴性表达组CD4^(+)TILs、CD8^(+)TILs、FoxP3^(+)TILs密度比较,差异均有统计学意义(P<0.05)。PD-L1表达情况与CD4^(+)TILs、CD8^(+)TILs、FoxP3^(+)TILs密度均呈正相关(r=0.305、0.222、0.222,P=0.002、0.026、0.026)。生存组与死亡组CD4^(+)TILs密度、CD8^(+)TILs密度和PD-L1表达情况比较,差异均有统计学意义(P<0.05)。手术年龄<50岁、PD-L1阳性表达、CD4^(+)TILs高密度、CD8^(+)TILs高密度、FoxP3^(+)TILs/CD8^(+)TILs低比值患者累计生存率均高于手术年龄≥50岁、PD-L1阴性表达、CD4^(+)TILs低密度、CD8^(+)TILs低密度、FoxP3^(+)TILs/CD8^(+)TILs高比值患者,差异均有统计学意义(P<0.05)。多因素Cox回归分析结果显示,PD-L1阳性表达、CD8^(+)TILs高密度是患者预后的独立保护因素(P<0.05)。结论PD-L1、CD4^(+)TILs、CD8^(+)TILs、FoxP3^(+)TILs/CD8^(+)TILs比值与宫颈癌淋巴结转移患者预后均有关,其中PD-L1阳性表达、CD8^(+)TILs高密度是宫颈癌淋巴结转移患者预后的独立保护因素。