胃癌组织中CD26的表达与临床病理特征及预后的相关性

目的探讨CD26的表达与胃癌临床病理学特征及预后的相关性。方法采用免疫组化EliVision Super法检测90例胃癌组织及相应90例癌旁正常胃黏膜组织、12例低级别上皮内瘤变和6例高级别上皮内瘤变组织中CD26蛋白的表达,分析其表达与临床病理学特征及预后的关系。结果 CD26在胃癌肿瘤细胞中的阳性率为67.8%(61/90),在高级别上皮内瘤变组织中的阳性率为50%(3/6),两者差异无统计学意义(P0.05);在低级别上皮内瘤变及癌旁正常胃黏膜腺上皮中均不表达;CD26表达与胃癌浸润深度(r=0.248,P=0.015)和pTNM分期(r=0.255,P=0.012)呈正相关。CD26在胃癌肿瘤浸润性淋巴细胞(tumor infiltrating lymphocytes, TILs)及间质细胞中均无表达。Kaplan-Meier及Log-rank单因素生存分析显示,CD26表达、肿瘤大小、浸润深度、远处转移和pTNM分期为胃癌预后的不良因素(P0.05)。多因素Cox回归模型分析显示,肿瘤大小、远处转移和pTNM分期均为影响胃癌预后的独立危险因素(P0.05),而肿瘤细胞中CD26表达、浸润深度并非预后的独立危险因素(P0.05)。结论 CD26的表达在胃癌的发生、进展中扮演重要角色,其可作为胃癌侵袭能力、远处转移、临床病理分期、早期诊断及负性预后因子的重要参考指标。     

胃癌组织P^53蛋白产物的表达及病人预后的关系

采用免疫组化方法对Ｐ＾５３蛋白的表达进行观察，结果表明：胃癌组织Ｐ＾５３蛋白染色阳性率为３６．５％，肿瘤大于５ｃｍ组，有淋巴结转移和浆膜侵犯及Ⅲ、Ⅳ期胃癌组织Ｐ＾５３蛋白染色阳性率分别显著高于肿瘤小于５ｃｍ、无淋巴结转移和浆膜侵及Ⅰ、Ⅱ期胃癌组。     

胃癌组织中bcl-2表达与预后的关系

胃癌是严重危害人类健康的常见恶性肿瘤之一,癌细胞浸润、淋巴结转移是胃癌术后复发和化疗失败的主要原因。为阐明bcl-2基因在胃癌发生、发展及预后过程中的作用,检测60例胃癌bcl-2表达情况,探讨与胃癌发展及预后的关系。1材料与方法1.1病例来源60例胃癌均取自张家口地区1996~2     

胃癌中LKB1的表达与EMT及患者临床预后的关系

目的检测肝激酶B1(liver kinase B1, LKB1)在胃癌及癌旁组织中的表达,探讨其与临床病理特征及上皮细胞-间质转化(epithelial-mesenchymal transition, EMT)的关系及对胃癌患者预后的意义。方法应用免疫组化EnVision法检测120例胃癌及75例对应癌旁组织中LKB1及EMT相关分子标志物E-cadherin和vimentin的表达。结果 LKB1在胃癌中的表达显著低于癌旁组织(P0.05);LKB1低表达与肿瘤较低的分化程度、较深的浸润层次及较高的TNM分期相关(P0.05);LKB1低表达组胃癌患者生存期明显短于高表达组(P0.05);LKB1表达与EMT相关分子标志物E-cadherin(χ~2=32.05,P0.01)和vimentin(χ~2=19.52,P0.01)的表达相关。结论 LKB1属于抑癌基因,可能通过抑制肿瘤细胞EMT来参与胃癌的发生、发展,可以作为胃癌患者预后的判断指标。     

胃腺癌中CBX8的表达与临床病理特征及预后的关系

目的探讨CBX8在胃腺癌组织中的表达及其临床意义。方法收集119例原发性胃腺癌手术切除标本及癌旁正常组织,应用组织芯片、免疫组化PV 6000法检测胃腺癌组织、癌旁正常组织中CBX8的表达,并分析其表达与胃腺癌临床病理特征及生存预后的关系。结果 CBX8在胃腺癌、癌旁正常组织高表达率分别为46. 2%(55/119)、13. 4%(16/119),两者差异有统计学意义(χ2=30. 53,P 0. 01)。胃腺癌组织中CBX8表达与分化程度、临床分期及有无淋巴结转移相关(P 0. 05)。CBX8在低分化胃腺癌组中的高表达率低于中、高分化胃腺癌组,Ⅰ+Ⅱ期胃腺癌中CBX8的高表达率高于Ⅲ+Ⅳ期; CBX8高表达的胃腺癌患者转移率低。Cox回归分析表明,CBX8表达、临床分期、淋巴结转移是影响胃腺癌患者术后总生存期和无瘤生存期的独立预后因素(P 0. 05)。Kaplan-Meier分析显示,CBX8高表达的胃腺癌患者术后总生存期(P=0. 004)和无瘤生存期(P=0. 004)比低表达的患者长。结论 CBX8可能参与胃腺癌的发生、发展过程,是影响患者预后的独立因素之一,检测其表达对评价胃腺癌可能具有重要的临床价值,并有望成为胃腺癌靶向治疗的新靶点。     

中国胃癌患者HER2蛋白表达与临床病理学参数及预后的关系

目的 评估中国胃癌人群中HEB2蛋白表达的流行病学情况,分析其与患者临床病理学参数之间的关系,探讨HEB2蛋白表达与胃癌患者预后的关系.方法 使用免疫组织化学方法检测胃癌患者中HER2蛋白的表达,以修订后HereepTest评分标准进行评分.x2检验分析HEB2蛋白表达与胃癌患者临床病理学参数之间的关系.生存分析应用Kaplan-Meier法,生存率比较采用Logrank 检验.结果 860例患者中位年龄59岁,男女比例为2.06∶1,其中进展期胃癌患者为774例.使用修订后的HercpTest评分标准评判HER2蛋白阳性表达(3+)的患者为77例(9.0%,77/860),其中进展期胃癌中的HER2阳性表达患者是69例,占进展期胃癌的8.9%(69/774).HEB2蛋白在胃癌中的阳性表达与肿瘤分化、Lauren分型及WHO分型相关,与年龄、性别、肿瘤发生部位及临床分期不相关.生存分析提示HER2蛋白阳性表达的胃癌患者生存率与阴性表达者无明显差异.结论 虽然胃癌HER2蛋白的阳性表达与肿瘤分化及组织学类型相关,但其可能不是胃癌患者的独立预后因子;HER2蛋白在胃癌中的阳性表达可能不影响胃癌患者的预后.

Abstract：

Objective To evaluate the epidemiological status of HER2 protein expression in Chinese patients with gastric carcinoma,and to study its clinical and prognostic significance and the association with the clinicopathological features.Methods The clinical data were reviewed in 860 patients with gastric carcinoma admitted to Guangdong General Hospital from 2003 to 2010.The HER2 status Was evaluated using immunohistochemistry(IHC).The modified Heroep Test scoring criterion Was used to assess HER2 protein expression.The association between HER2 expression and clinicopathological features was analyzed by X2 test.Kaplan-Meier analysis,log-rank test and Cox regression model were used for the survival analysis.Results The median age of the patients Was 59 years, and the male-to-female ratio was 2.06∶1.Positive expression of HER2 protein(3+)was found in 77(9.0%)cases of gastric carcinoma,and in 69(8.9%)edvanced gastric cancers.There waS significantly positive association between HER2 overexpression and tumor differentiation, Lanren claasification and WHO classification.No significant association Was observed between HER2 protein expression and patients'age,gender,tumor location and clinical stage.There waS no statistically significant difference in survival rate between patients with positive HER2expression and negative ones. Conclusion Though there WaS significantly positive association between HER2 expression status and tumor differentiation,histological type,it may be of limited prognostic value in gastric cancer patients.     

子宫内膜癌组织中肿瘤芽的表达与临床病理特征及预后的关系

目的：探讨子宫内膜癌组织中肿瘤芽的表达及其与临床病理特征、预后的关系。方法回顾性分析47例子宫内膜癌的病理切片,计算每例切片中肿瘤芽数量,对肿瘤芽细胞行免疫组化染色。运用统计学分析肿瘤芽表达与患者临床病理因素、预后的关系。结果47例子宫内膜癌中,18例存在肿瘤芽,阳性率为38.3%。肿瘤芽与子宫内膜癌的组织学分级、淋巴结转移、血管侵犯、淋巴管侵犯、Ki-67增殖指数及预后相关,而与患者年龄、肿瘤直径、pTNM分期及肌层侵犯深度无关。肿瘤芽细胞中CK(AE1/AE3)、β-catenin及E-cadherin表达明显减少,而N-cadherin、vimentin表达升高。结论肿瘤芽表达与子宫内膜癌的进展和恶性度相关,可作为判断子宫内膜癌患者预后的指标。肿瘤芽的免疫表型提示其与上皮-间质转化( epithelial-mesenchymal transition, EMT)密切相关,肿瘤芽可能是EMT发生的重要过程之一。     

中国胃癌患者HER2蛋白表达与临床病理学参数及预后的关系

Objective To evaluate the epidemiological status of HER2 protein expression in Chinese patients with gastric carcinoma,and to study its clinical and prognostic significance and the association with the clinicopathological features.Methods The clinical data were reviewed in 860 patients with gastric carcinoma admitted to Guangdong General Hospital from 2003 to 2010.The HER2 status Was evaluated using immunohistochemistry(IHC).The modified Heroep Test scoring criterion Was used to assess HER2 protein expression.The association between HER2 expression and clinicopathological features was analyzed by X2 test.Kaplan-Meier analysis,log-rank test and Cox regression model were used for the survival analysis.Results The median age of the patients Was 59 years, and the male-to-female ratio was 2.06∶1.Positive expression of HER2 protein(3+)was found in 77(9.0%)cases of gastric carcinoma,and in 69(8.9%)edvanced gastric cancers.There waS significantly positive association between HER2 overexpression and tumor differentiation, Lanren claasification and WHO classification.No significant association Was observed between HER2 protein expression and patients'age,gender,tumor location and clinical stage.There waS no statistically significant difference in survival rate between patients with positive HER2expression and negative ones. Conclusion Though there WaS significantly positive association between HER2 expression status and tumor differentiation,histological type,it may be of limited prognostic value in gastric cancer patients.     

p27^kip1在胃癌中的表达及与临床病理分期和预后的关系

目的：探讨p27^kip1在胃癌中的表达状况及其预后价值。方法：应用免疫组化技术（S－P法）检测了p27^kip1在67例胃癌中的表达。结果：p27^kip1在胃癌中的阳性表达率为50．7％表达呈异质性。p27^kip1的表达与胃癌的浸润深度（P＜0．05）、淋巴结转移（P＜0．005）、分化程度（P＜0．05）及临床病理分期（P＜0．005）显著相关,而与肿瘤大小、部位无关。结论：p27^kip1在胃癌中低表达反映了其恶性进展,是一个有价值的预后因子。     

肾癌组织中Mina53和CapG表达及临床意义

目的探讨Mina53（Myc—induced nuclear antigen53）和CapG（capping protein）在肾细胞癌中的表达及临床意义。方法利用免疫组化SP法测定66例经HE染色病理确诊肾细胞癌（RCC）组织和30例癌旁组织中Mina53和CapG的表达,并分析其与病理分级及临床分期之间的关系。结果与RCC旁组织比较,RCC中Mina53和CapG阳性表达明显升高。Mina53和CapG在RCC组织不同的病理分级中,G3和G2明显高于G1表达;在TNM分期中,Mina53和CapG在T3、T4中的表达明显高于T1、T2。Mina53和CapG的表达与远处转移和复发有一定关系,且两者表达呈显著相关性（P〈0．05）。结论Mina53和CapG在RCC组织中的表达与临床病理分级、TNM分期、复发和转移有关,这对临床治疗和预后判断有一定的参考意义。     

Expression of Tim-3 in gastric cancer tissue and its relationship with prognosis

As a negative regulatory molecule, T-cell immunoglobulin–and mucin domain-3 (Tim-3) plays a crucial role in the tumor immunological tolerance. In the present study, we aimed to determine the Tim-3 expression in gastric cancer tissue and its relationship with clinicopathological parameters and prognosis. The Tim-3 expression was assessed in 52 gastric cancer specimens and 15 gastritis tissues by flow cytometry, and gastritis tissues served as the control. As a result, we found that the Tim-3 expressions on CD4⁺T cells and CD8⁺T cells in gastric cancer tissue was significantly higher than those in gastritis tissue (P=0.022, P=0.047, respectively). The median expression level of Tim-3 on CD4⁺T cells were significantly correlated with clinicopathological parameters, such as tumor size, lymph node metastasis, the depth of tumor invasion and TNM staging (P=0.042, P=0.026, P=0.001, P=0.003, respectively), while it was not correlated with sex, age and histological subtype (all P>0.05). In CD8⁺T cells, the Tim-3 expression was relevant to tumor invasion and TNM staging (P=0.035, P=0.017, respectively), while it was irrelevant to other clinicopathological parameters (all P>0.05). Additionally, Kaplan-Meier survival curves showed that the median overall survival time of patients with lower Tim-3 expression was greater than that of patients with higher Tim-3 expression in CD4⁺T cells and CD8⁺T cells (χ²=18.036, P<0.001 and χ²=18.036, P<0.001, respectively). Moreover, the multivariate analysis revealed that the Tim-3 expression and TNM stage were independent prognostic factors for gastric cancer patients (P=0.029, P=0.043 and P=0.003, respectively). These results suggest that Tim-3 played an important role in the development and progression of gastric cancer, and it could be used as an independent prognostic factor for gastric cancer patients.     

胃癌中Trop2的表达及临床意义

目的检测肿瘤相关钙信号转导蛋白2(tumor-associated calcium signal transducers 2,Trop2)在胃癌及癌旁正常胃组织中的表达,探讨其与临床病理特征的关系及对胃癌预后的意义。方法应用免疫组化法检测135例胃癌及65例癌旁正常胃组织中Trop2的表达。结果 Trop2高表达者86例(63.7%,86/135),其中肠型胃癌74例(64.9%,74/114),弥漫性胃癌12例(57.1%,12/21)。Trop2在癌旁胃组织、慢性胃炎、肠化、低度及高度异型增生组织中高表达者分别为14例(21.5%,14/65)、6例(13.3%,6/45)、15例(30%,15/50)、30例(48.4%,30/62)及39例(50%,39/78)。Trop2在非肿瘤性病变中高表达发生率显著低于肠型胃癌(P0.05)。Trop2在癌旁正常胃组织、慢性胃炎、肠化组织中高表达发生率显著低于弥漫性胃癌(P0.05)。Trop2在肠化组织中高表达发生率显著低于低度异型增生组织(P0.05)。Trop2高表达与肿瘤较低的分化程度、浆膜浸润、淋巴结转移及幽门螺旋杆菌感染具有相关性(P0.05)。Trop2阳性的胃癌患者生存期明显短于阴性胃癌患者(P0.01)。结论 Trop2可能参与胃癌的发生、发展,其高表达提示胃癌患者预后不良。     

KLF5和Survivin蛋白异常表达与胃癌预后的关系

目的通过分析KLF5和Survivin蛋白在胃癌组织中的表达,探讨KLF5和Survivin在胃癌发生、发展中的相互关系及二者对胃癌预后的影响。方法采用免疫组化SP法检测79例胃癌组织和40例正常胃组织中KLF5和Survivin的表达,并根据检测结果进行相关性分析、Kaplan-Meier法进行生存分析、通过Cox比例风险模型分析KLF5和Survivin的表达与患者预后的关系。结果 79例胃癌组织中KLF5和Survivin的阳性率分别为46.84%和56.96%,二者表达均与肿瘤分化程度、临床分期、浸润程度及有无淋巴结转移显著相关(P0.05)。经Spearman等级相关分析显示,KLF5和Survivin在胃癌组织中的表达呈正相关(r_s=0.444,P0.05)。Kaplan-Meier法生存分析显示,KLF5和Survivin阳性组的中位生存期(28个月和29个月)明显低于阴性组(48.5个月和50.6个月)(P0.000 1)。Cox回归分析表明,肿瘤浸润深度、临床分期、淋巴结转移以及KLF5和Survivin异常表达是影响胃癌患者预后的危险因素。结论 KLF5和Survivin高表达与胃癌分化程度、浸润和转移有关,并且二者间可能存在相互调节和协同效应,是胃癌不良预后的危险因素,可作为胃癌诊断及预后评价的客观指标。     

胃癌中HSDL2过表达与临床病理特征的相关性

目的探讨羟基类固醇脱氢酶样蛋白2(hydroxysteroid dehydrogenase like 2,HSDL2)在胃癌中的表达及与临床病理特征的关系。方法采用免疫组化SP两步法检测HSDL2蛋白在90例胃癌和20例正常胃组织中的表达,分析HSDL2蛋白过表达与胃癌临床病理特征的关系,并采用GEPIA数据库进行生存分析。结果HSDL2蛋白主要定位于胃癌细胞SGC-7901和AGS的细胞质中。UALCAN数据库分析结果显示:胃癌组织中HSDL2 mRNA的表达水平明显高于正常胃组织(P<0.05)。HSDL2蛋白在胃癌组织中过表达,强阳性率为58.9%(53/90),显著高于正常胃组织(5.0%,1/20)(P<0.01)。HSDL2蛋白表达与胃癌分化程度、临床分期及肿瘤直径密切相关(P均<0.05),与患者性别、年龄及淋巴结转移无明显相关性。GEPIA数据库分析结果显示,HSDL2蛋白过表达胃癌患者无瘤生存率低于HSDL2蛋白低表达患者(P<0.05)。结论HSDL2在胃癌组织中明显过表达,其表达水平与胃癌的发生、发展及不良预后密切相关,有望成为胃癌患者预后评估的重要指标。     

胃癌组织中TSLC1的表达及临床意义

目的：探讨肺癌肿瘤抑制物1(tumor suppressor in lung cancer 1, TSLC1)蛋白表达与胃癌发生、发展的关系。方法采用免疫组化法检测TSLC1蛋白在20例正常胃黏膜、30例胃上皮内瘤变和50例胃癌组织中的表达,并复习相关文献。结果TSLC1在胃癌中的阳性率为14．00%,低于胃上皮内瘤变(46．67%)及正常胃黏膜(95．00%)( P<0．05)。 TSLC1在高级别上皮内瘤变中的表达低于低级别上皮内瘤变及正常胃黏膜( P<0．05)。 TSLC1在高级别上皮内瘤变及胃癌组织中的表达差异无显著性(P>0．05)。胃癌中 TSLC1表达与淋巴结转移和TNM分期密切相关(P<0．05)。结论 TSLC1表达与胃癌的发生、发展有关,可能为胃癌的防治提供新方向。     

Prognostic and clinicopathological significance of CapG in various cancers: Evidence from a meta-analysis

BackgroundThe gelsolin-like actin-capping protein (CapG) is an actin-binding protein in the gelsolin superfamily. Increasing evidence indicates that CapG is highly expressed in various types of cancer. However, the role of CapG in malignant tumors is still controversial. Therefore, we conducted a meta-analysis to assess the prognostic value and clinicopathological significance of CapG in malignant tumors.MethodWe searched for eligible studies in the PubMed, Web of Science, Embase, and Cochrane databases. Stata SE12.0 software was used for quantitative meta-analysis. The hazard ratios (HRs) and odds ratios (ORs) with 95% CI were pooled to assess the relationship between CapG expression and overall survival (OS), as well as clinicopathological parameters.ResultsSixteen studies with a total of 1987 cancer patients were included in this meta-analysis. The results showed that higher CapG expression was statistically correlated with shorter OS (HR 1.70, 95% CI 1.43–1.97, P < 0.001), positive lymph node metastasis (OR 1.91, 95% CI 1.19–3.09, P = 0.008), advanced TNM stage (OR 1.87, 95% CI 1.17–3.00, P = 0.009), advanced T-primary stage (OR 2.54, 95% CI 1.08–6.00, P = 0.033) and male sex (OR 1.77, 95% CI 1.23–2.56, P = 0.002). However, no significant correlation was observed between increased CapG expression and advanced age, larger tumor size, differentiation, or advanced histopathologic grading (P > 0.05).ConclusionsHigh CapG expression is associated with a poor prognosis and worse clinicopathological parameters in various cancers. CapG is a potential prognostic biomarker and a possible clinicopathological predictive factor for various cancers.     

High tissue expression of tumour-associated trypsin inhibitor (TATI) associates with a more favourable prognosis in gastric cancer

AIMS: The tumour-associated trypsin inhibitor (TATI) is a 6-kDa protease inhibitor with potential inhibitory effects on tissue degradation. In serum, increased levels have been associated with adverse prognosis in different forms of cancer. We assessed the tumour tissue expression and prognostic value of TATI in a surgically treated, single-institution series of patients with gastric cancer. METHODS AND RESULTS: Using a monoclonal anti-TATI antibody, immunohistochemistry was performed on formalin-fixed paraffin-embedded tumour specimens from 336 patients. TATI expression was observed in 265 (79%) of the tumours. There was a significant association between high TATI expression and low stage (P = 0.007), superficial tumours (P = 0.005), and absence of nodal (P = 0.015) and of distant metastases (P = 0.022). In univariate analysis, patients with high TATI expression had a significantly more favourable 5-year cumulative survival compared with patients with negative to moderate immunostaining (43% and 28%, respectively, P = 0.006). On multivariate survival analysis stratified for estimated cure of surgery, stage (P < 0.0001) and age (P = 0.022) at the time of surgery were independent prognostic factors. CONCLUSIONS: High TATI expression in tumour tissue was detected more frequently in patients with early-stage gastric cancer and seems to correlate with a favourable outcome.