目的 探讨转录因子E盒结合锌指蛋白1(ZEB1)、溶酶体相关膜蛋白5(LAMP5)在结直肠癌组织中的表达水平分析及预后预测价值。方法 选取驻马店市中心医院2018年1月—2020年1月收治的120例结直肠癌患者,分别采取所有患者的结直肠癌组织及癌旁组织进行免疫组化染色,对比ZEB1、LAMP5阳性率。对比不同病理特征结直肠癌患者ZEB1、LAMP5表达水平差异。对所有患者进行4年随访,依照随访结果将患者分为2个亚组,即预后不良组(n=35)和预后良好组(n=85),对比两组患者一般临床特征及ZEB1、LAMP5表达水平,应用Logistic回归分析ZEB1、LAMP5对结直肠癌预后的预测价值。结果 结直肠癌组织ZEB1、LAMP5相对表达量(38.26±5.49、26.77±3.85)与ZEB1、LAMP5阳性率(86.67%、72.22%)高于癌旁组织(15.46±2.54、8.04±1.59、23.33%、15.56%],对比差异有统计学意义(t=41.280,χ2=25.437;t=49.255,χ 2 =16.071;P<0.05)。不同TNM分期[Ⅰ~Ⅱ期(35.55±4.13)、Ⅲ~Ⅳ期(42.32±4.75)]、淋巴结转移患者[是(44.37±4.28)、否(35.84±3.77)]、肿瘤分化程度[低分化(35.27±4.57)、中高分化(41.34±4.60)]ZEB1相对表达量对比差异有统计学意义(t=-8.281,P<0.001;t=10.746,P<0.001;t=-7.253,P<0.001);不同TNM分期[Ⅱ期(24.88±3.37)、Ⅲ~Ⅳ期(29.61±2.57)]、淋巴结转移[是(30.72±2.19)、否(25.21±3.19)]、肿瘤分化程度[低分化(24.57±3.62)、中高分化(29.04±2.55)]患者LAMP5相对表达量对比差异有统计学意义(t=-8.254,P<0.001;t=9.227,P<0.001;t=-7.797,P<0.001);预后良好组与预后不良组患者性别、年龄、大体类型、肿瘤大小对比差异无统计学意义(P>0.05),预后良好组与预后不良组患者TNM分期、淋巴结转移、肿瘤分化程度、ZEB1、LAMP5阳性比例对比差异有统计学意义(P<0.05);Logistic回归分析显示:淋巴结转移、ZEB1阳性、LAMP5阳性为结直肠癌预后不良独立预测因素(P<0.05)。结论 ZEB1、LAMP5在结直肠癌组织中呈现高表达状态,且与结直肠癌的发生有关,同时ZEB1、LAMP5是结直肠癌预后的独立预测因素,两者有希望成为结直肠癌的治疗靶点。
Objective To investigate the expression levels and prognostic value of transcription factor E-box binding to zinc finger protein 1(ZEB1)and lysosomal associated membrane protein 5(LAMP5)in colorectal cancer tissues.Methods A total of 120 colorectal cancer patients admitted to a hospital from January 2018 to January 2020 were selected.Immunohistochemical staining was performed on the colorectal cancer tissues and adjacent tissues of all patients,and the positivity rates of ZEB1 and LAMP5 were compared.The expression levels of ZEB1 and LAMP5 in colorectal cancer patients with different pathological characteristics were compared.All patients were followed up for 4 years and divided into two subgroups based on the follow-up results,namely the poor prognosis group(n=35)and the good prognosis group(n=85).The general clinical characteristics and expression levels of ZEB1 and LAMP5 were compared between the two groups.Logistic regression analysis was used to evaluate the predictive value of ZEB1 and LAMP5 for the prognosis of colorectal cancer.Results The relative expression level of ZEB 1 and LAMP 5 in colorectal cancer tissues [(38.26±5.49),(26.77±3.85)] and the positive rate of ZEB 1 and LAMP 5(86.67%,72.22%)were significantly higher than that of adjacent tissues [(15.46±2.54),(8.04±1.59),23.33%,15.56%],the contrast difference was statistically significant(t=41.280,χ2=25.437;t=49.255,χ 2 =16.071;P<0.05).Relative ZEBI expression levels in different TNM stages [I-Ⅱstage(35.55±4.13),Ⅲ-Ⅳstage(42.32±4.75)],lymph node metastasis[Yes(44.37±4.28),No(35.84±3.77)],degree of tumor differentiation [hypodifferentiated(35.27±4.57),and middle or high differentiated (29.04±2.55)],those differences were statistically significant(t=-8.254,P<0.001;t=9.227,P<0.001;t=-7.797,P<0.001).The relative expression of LAMP 5 between different TNM stages [I-Ⅱstage(24.88±3.37),Ⅲ-Ⅳstage(29.61±2.57)],lymph node metastasis [yes(30.72±2.19),no(25.21±3.19)],degree of tumor differentiation [hypodifferentiated(24.57±3.62),and middle or high differentiated(29.04±2.55)],the contrast was statistically significant(t=-8.254,P<0.001;t=9.227,P<0.001;t=-7.797,P<0.001).There were no differences in gender,age,gross type,and tumor size between the good prognosis group and the poor prognosis group(P>0.05),while there were differences in TNM stages,lymph node metastasis,tumor differentiation degrees,ratio of ZEB 1 and LAMP 5(P<0.05).Logistic regression analysis showed that TNM stage,lymph node metastasis,ZEB 1 positive,and LAMP 5 positive were independent predictive factors of poor prognosis in colorectal cancer(P<0.05).Conclusions ZEB1 and LAMP5 are highly expressed in colorectal cancer tissues and closely related to the occurrence and development of colorectal cancer.ZEB1 and LAMP5 are independent prognostic factors for colorectal cancer,and they have the potential to become therapeutic targets for colorectal cancer.
目的 分析谷草转氨酶(AST)、胆碱酯酶(CHE)、糖类抗原125(CA125)以及甲胎蛋白(AFP)对肝硬化患者的诊断效能。方法 选择70例肝硬化患者为观察组研究对象,另取70例同期健康体检者为对照组。两组研究对象均接受生化检验、肿瘤标志物检验。对比两组研究对象的AST、CHE、CA125、AFP检测结果,分析上述指标对肝硬化患者的诊断效能。结果 观察组肝硬化患者的CHE低于对照组,AST、CA125与AFP高于对照组(P<0.05);AST与CHE在肝硬化诊断中具有良好的灵敏度、特异度;CA125联合AFP的灵敏度、特异度、符合率均高于CA125或AFP单独检验(P<0.05)。结论 AST、CHE、CA125、AFP在肝硬化患者临床诊断中具有良好的应用表现,是反映患者肝硬化病情进展的重要参考指标。
Objective To analyze the diagnostic efficacy of aspartate aminotransferase(AST),cholinesterase(CHE),carbohydrate antigen 125(CA125),and alpha fetoprotein(AFP)in patients with liver cirrhosis.Methods A total of 70 patients with liver cirrhosis were included in the observation group as the study subjects,and 70 healthy individuals who underwent physical examinations during the same period were selected as the control group.Both groups of research subjects underwent biochemical testing and tumor marker testing.The AST,CHE,CA125,and AFP detection results of two groups of research subjects were compared,and the diagnostic effect of the above indicators on patients with liver cirrhosis were analyzed.Results The CHE test results of patients with liver cirrhosis in the observation group were significantly lower than those of healthy individuals undergoing physical examination,and the AST,CA125,and AFP test results were higher(P<0.05).AST and CHE had good sensitivity and specificity in the diagnosis of liver cirrhosis.The sensitivity,specificity and coincidence rate of CA125 combined with AFP were higher than those of CA125 or AFP alone.Conclusions AST,CHE,CA125,and AFP have good clinical application performance in the diagnosis of liver cirrhosis patients,and are important reference indicators reflecting the progression of liver cirrhosis in patients.
目的 探讨Ki-67、微小染色体维持蛋白2(MCM2)、p16在宫颈鳞状上皮内病变中的表达及其临床意义。方法 采用免疫组化检测Ki-67、MCM2、p16在宫颈炎症组14例、低级别鳞状上皮内病变(LSIL)组47例、高级别鳞状上皮内病变(HSIL)组49例中的表达情况,以病理结果作为金标准,对结果进行统计分析。结果 HSIL组中Ki-67、MCM2、p16阳性率均高于炎症组和LSIL组(均P<0.017)。HSIL组中Ki-67、MCM2过表达率均显著高于炎症组和LSIL组(均P<0.017)。随着宫颈病变级别增加,Ki-67及MCM2阳性范围从基底层至表层逐渐扩大。MCM2及Ki-67在LSIL组中表达模式多为基底层的非过表达模式,HSIL组多为中层及以上的过表达模式。Spearman相关性分析显示,MCM2和Ki-67在宫颈鳞状上皮内病变中的表达强度之间呈正相关(r=0.801,P<0.05);p16与MCM2在宫颈鳞状上皮内病变中的表达呈正相关(r=0.559,P<0.05);p16与Ki-67在宫颈鳞状上皮内病变中的表达呈正相关(r=0.478,P<0.05)。结论 p16阳性提示宫颈高级别鳞状上皮内病变。MCM2与Ki-67在宫颈鳞状上皮内病变中的表达具有较高一致性,MCM2可作为宫颈鳞状上皮内病变新的增殖标志物。
Objective To investigate the expression and significance of Ki-67,MCM2 and p16 in cervical intraepithelial lesions.Methods The expressions of Ki-67,MCM2 and p16 in cervicitis group(14 cases),low-grade squamous intraepithelial lesion(LSIL) group(47 cases)and high-grade squamous intraepithelial lesion(HSIL) group(49 cases)were detected by immunohistochemistry.The pathological results were used as the gold standard for statistical analysis.Results The positive rates of Ki-67,MCM2 and p16 in HSIL group were significantly higher than those in cervicitis group and LSIL group(P<0.017).The over-expression rates of Ki-67,MCM2 in HSIL group were significantly higher than those in cervicitis group and LSIL grou(P<0.017).With the increase of cervical lesion grade,the positive range of Ki-67 and MCM2 gradually expanded from basallayer to surface layer.The expression patterns of MCM2 and Ki-67 in LSIL group were mostly non-overexpressed in the basal layers,while those in HSIL group were mostly overexpressed in the middle layer and above.Spearman correlation analysis showed that the expression intensity of MCM2 and Ki-67 in cervical squamous intraepithelial lesions was positively correlated(r=0.801,P<0.05).There was a positive correlation between the expression of p16 and MCM2 in cervical squamous intraepithelial lesions(r=0.559,P<0.05).There was a positive correlation between the expression of p16 and Ki-67 in cervical squamous intraepithelial lesions(r=0.478,P<0.05).Conclusions Positive p16 indicates high-grade squamous intraepithelial lesion.The expression of MCM2 and Ki-67 in cervical intraepithelial lesions is highly consistent.MCM2 can be used as a new proliferative marker for cervical intraepithelial lesions.
目的 探讨多梳蛋白SUZ12对肝细胞肝癌(HCC)细胞增殖、血管生成拟态形成和人脐静脉内皮细胞(HUVECs)血管生成的影响。方法 分别利用MTT比色法及体外血管生成实验检测SUZ12表达水平改变对HCC细胞SMMC-7721、Hep3B增殖、血管生成拟态形成和HUVECs血管生成的影响。结果 MTT结果显示,在HCC细胞中分别敲低或过表达SUZ12均对HCC细胞的增殖能力无明显影响。将SUZ12低表达HCC细胞与HUVECs共培养后,HCC细胞的血管生成拟态管样结构形成增多。此外,将SUZ12敲低组HCC细胞的培养上清用于培养HUVECs后,HUVECs的血管生成拟态管样结构形成也明显增多。结论 SUZ12对HCC细胞的增殖无影响,其在HCC中可抑制HCC细胞和HUVECs的血管生成拟态管样结构形成。上述结果提示SUZ12可能通过调控HCC细胞及HUVECs的血管生成发挥抑癌作用。
Objective To investigate the effects of SUZ12 on cell proliferation of hepatocellular carcinoma(HCC),vasculogenic mimicry formation and human umbilical vein endothelial cells(HUVECs)angiogenesis.Methods MTT assay was performed to detect the proliferation of SMMC-7721 and Hep3B cells.The effects of SUZ12 on the angiogenesis of HCC cells and HUVECs cells were studied by in vitro angiogenesis experiment.Results The result of MTT assay showed that SUZ12 knockdown or overexpression in HCC cells had no significant effect on the proliferation of HCC cells.We found that when HCC cells with low SUZ12 expression were co-cultured with HUVECs cells,the formation of vasculogenic mimicry tubular structures in HCC cells increased.In addition,we also found that after the culture supernatant of HCC cells in the SUZ12 knockdown group was used to culture HUVECs cells,the formation of vasculogenic mimicry tubular structures in HUVECs cells also increased significantly.Conclusions SUZ12 has no effect on the proliferation of HCC cells,but it can inhibit the formation of vasculogenic mimicry tubular structures in HCC cells and HUVECs cells.These results suggest that SUZ12 plays a role in cancer inhibition by regulating the angiogenesis of HCCcells and HUVECs cells.