食管鳞癌中p53与bcl-2的表达及其临床意义

目的 :探讨食管鳞癌中p53和bcl 2的表达情况、相互关系及其临床意义。方法 :应用免疫组化法 (S P)对 1 0 0例食管鳞癌病人的内镜活检标本检测p53和bcl 2的表达。结果 :在癌旁正常鳞状上皮、癌旁不典型增生和癌组织中p53的阳性表达率分别为8.9%、43.6 %和 58.6 % (χ2 =30 .2 ,P <0 .0 1 ) ;bcl 2阳性表达率分别为 6.7%、3 .6 %和 43.0 % (χ2 =57.4,P <0 .0 1 )。p53阳性表达率在不典型增生中已接近癌组织 ,bcl 2在癌旁正常鳞状上皮和不典型增生组织中表达较低 ,在癌组织中表达较高。在分化较好的食管鳞癌中 ,p53的阳性表达率和表达强度等级明显高于bcl 2 ,在低分化癌中 ,p53和bcl 2的阳性表达率和表达强度等级无差异。结论 :p53表达可能是食管鳞癌的早期事件 ,bcl 2表达较晚 ,是癌变的特征。p53和bcl 2表达的相互关系与食管鳞癌的分化程度有关     

Neuropilin-1在食管鳞癌中的表达及其意义

目的探讨Neuropilin-1(NRP-1)在食管鳞癌中的表达及其生物学和临床意义.方法取42例新鲜原发食管鳞癌和邻近正常食管粘膜标本,所有的标本均经病理诊断确诊.用RT-PCR方法检测每例患者癌组织和相应癌旁正常组织中NRP-1mRNA的表达.癌与癌旁正常组织表达值之间的比较采用配对t检验,癌组织的表达值与临床病理因素之间的关系采用成组t检验,检验结果以P＜0.05为有意义.结果在42例患者中,37例NRP-1mRNA表达强于相应癌旁正常组织,占89.00%,肿瘤直径≥3 cm组、外膜浸润组和淋巴结转移组的NRP-1mRNA表达明显增高.癌组织中NRP-1mRNA的表达与肿瘤分化程度和性别无关.结论在食管鳞癌中NRP-1mRNA的表达明显高于癌旁正常组织,并且与食管鳞癌的发展、浸润和转移有关.     

Claudin-1和VEGF-c在食管鳞癌中的表达

目的检测Claudin-1和VEGF—c蛋白存食管鳞癌组织和癌旁组织中的表达,探讨Claudin-1和VEGF—c蛋白存食管鳞癌发生发展中的作用。方法用组织芯片技术及免疫组化方法检测食管鳞癌及相应癌旁组织中Claudin-1和VEGF-c蛋白的表达,分析其表达与临床病理因素的关系。结果Claudin-1和VEGF—c蛋白在食管鳞癌癌组织中的表达均显著高于癌旁组织。Claudin-1和VEGF—c蛋白在食管鳞癌组织的表达与患者年龄、性刖、肿瘤的分化程度、分级分期和淋巴结转移情况无关。结论食管鳞癌的发生可能与Claudin-1和VEGF-c蛋白的表达上调有关。     

Pax2在食管鳞癌中的表达及临床意义

食管癌是世界上最常见恶性肿瘤之一。由于食管癌早期无明显症状,晚期多有淋巴结、血行或周围组织浸润,给食管癌监测及诊治带来了巨大的挑战。食管癌的发生发展伴随着癌基因和抑癌基因的差异表达。其中转录因子在启动癌基因和抑癌基因表达的过程中发挥了重要作用。     

乙醛脱氢酶1和Numb在食管鳞癌患者中的表达及意义

目的探讨乙醛脱氢酶(ALDH) 1和Numb基因在食管鳞癌患者中的表达及意义。方法应用实时荧光定量PCR技术检测120例食管鳞癌及癌旁组织标本中ALDH1和Numb基因的表达情况,并且采用Western印迹检测ALDH1和Numb蛋白表达,探讨其与患者临床特征的关系。结果食管鳞癌组织中ALDH1 mRNA相对表达量(11. 07±1. 18)显著高于癌旁组织(7. 13±2. 05,P<0. 05);而食管鳞癌组织中Numb mRNA的相对表达量(2. 02±0. 02)显著低于癌旁组织(5. 87±0. 47,P<0. 05)。ALDH1蛋白和Numb蛋白表达与转移情况、浸润深度、最大直径、分化程度及Ki67指数密切相关(P<0. 05)。AL-DH1蛋白和Numb蛋白表达呈负相关(r=-0. 46,P=0. 034 9)。结论 ALDH1在食管癌的生物学过程中发挥致癌作用,Numb基因发挥抑癌的作用。     

食管鳞癌组织中MMP-2和E-cadherin的表达及其意义

目的探讨食管鳞癌组织和食管鳞癌细胞系Eca109、EC9706中MMP-2和E—cadherin的表达及其与食管鳞癌临床病理特征的关系。方法应用免疫组化S-P法检测100例食管鳞癌组织及食管鳞癌细胞系Eca109、EC9706中MMP-2和E—cadherin蛋白的表达,应用RT—PCR技术检测两株细胞系中MMP-2mRNA和E—cadherinmR—NA的表达。结果食管鳞癌组织中MMP-2蛋白阳性率明显高于正常黏膜组织（P〈0．01）,且与癌组织的分化程度、浸润深度、淋巴结转移密切相关（P〈0．05）;E—cadhefin蛋白在食管鳞癌组织中阳性率明显低于正常黏膜组织（P〈0．01）,与癌组织分化程度、有无淋巴结转移呈负相关（P〈0．05）,与浸润深度无明显相关性（P〉0．05）;MMP-2和E—cadherin在食管鳞癌中的表达呈负相关（P〈0．01）;细胞系中MMP-2mRNA和E—cadherinmRNA的表达有显著性差异（P〈0．01）。结论食管鳞癌组织中MMP-2呈高表达;E—cadherin呈低表达,二者对食管癌的发生、浸润转移具有相反的调节作用;联合检测其变化可更准确预测食管癌的恶性生物学行为。     

Survivin与COX-2在食管鳞癌中的表达及其相关性研究

目的探讨凋亡抑制基因survivin在食管鳞癌组织中的表达及其与环氧合酶-2(COX-2)的相关性。方法采用免疫组化S-P法检测68例食管癌组织及15例正常食管黏膜组织中survivin蛋白和COX-2蛋白的阳性表达率。结果survivin蛋白在15例正常食管黏膜中呈阴性表达,而68例食管癌组织中45例阳性,占66.1%,差异有显著性。COX-2蛋白在食管癌组织中的阳性表达率为79.4%(54/68)。survivin蛋白阳性率与年龄、性别、原发部位无关,而与分化程度、有无淋巴结转移相关,并与COX-2蛋白阳性表达呈正相关。(Pearson列联系数为0.434)。结论survivin蛋白在食管癌的发生发展中起重要作用,survivin蛋白与COX-2蛋白密切相关,2者可能存在共同的激活机制,构成肿瘤细胞凋亡的多种途径。     

Notch-1和TMEM16A在食管鳞癌组织中表达及临床意义

目的探讨Notch-1和TMEM16A在食管鳞癌组织中表达及临床意义。方法采用免疫组化S-P法检测55例食管鳞癌组织中Notch-1和TMEM16A蛋白表达,并分析二者与食管鳞癌患者临床病理特征之间关系。结果食管鳞癌组织中Notch-1表达显著低于正常食管组织(P<0.05),而TMEM16A表达显著高于正常食管组织(P<0.05),二者表达呈负相关(r=-0.497,P=0.001)。二者表达均与食管鳞癌分化程度和淋巴结转移有关。Notch-1蛋白表达还与TNM分期、肿瘤浸润深度有关(P<0.05),结论食管鳞癌组织中Notch-1和TMEM16A蛋白表达呈负相关,二者在食管鳞癌发生、发展及生物学行为过程中可能起重要作用。     

SOX2在食管鳞癌组织中的表达及意义

目的:探讨食管鳞癌组织中SOX2 mRNA和蛋白的表达及意义.方法:应用原位杂交和免疫组织化学法分别检测35例正常食管黏膜组织及84例食管鳞癌组织中SOX2 mRNA和蛋白的表达.结果:SOX2在正常黏膜组织中mRNA的表达率为8.6％(3/35),显著低于其在癌组织中的表达率46.4％(39/84),组间比较差异具有...     

食管鳞癌组织中FEZ1和PCNA蛋白的表达及意义

目的 检测FEZ1和增殖细胞核抗原（PCNA）蛋白在食管鳞癌组织中的表达,探讨其临床意义及相关性。方法采用免疫组化SP法检测100例食管鳞癌及100例正常食管组织中FEZ1和PCNA的表达情况。结果FEZ1蛋白在食管鳞癌组织中的阳性表达率明显低于正常食管组织,其表达与浸润深度及淋巴结转移密切相关;PCNA在食管鳞癌组织中的阳性表达率明显高于正常食管组织,其表达与组织分化程度、浸润深度及淋巴结转移密切相关。FEZ1和PCNA在食管鳞癌组织中的表达存在负相关。结论FEZ1的表达可能与食管鳞癌的发生有关,并且参于了其浸润、转移等过程。     

ID-1、Ki-67及Bcl-2在食管鳞状细胞癌中的表达及意义

目的探讨食管鳞状细胞癌中DNA结合抑制蛋白-1（inhibitors of DNA binding1，ID-1）与Ki-67及Bcl-2表达的关系及其临床意义。方法应用免疫组织化学方法检测118例食管鳞状细胞癌手术切除标本及20例癌旁正常组织中ID-1、Ki-67及Bcl-2的表达情况。结果食管鳞状细胞癌中ID-1、Ki-67及Bcl-2表达上调，阳性比例分别为86．44％、81．36％和59．32％；ID-1及Bcl-2表达程度与肿瘤组织分化程度正相关（分别为r=0．289，P=0．002；及r=0．319，P=0．001）；Ki-67表达程度与肿瘤组织分化程度负相关（r=-0．320，P〈0．001）；ID-1与Bcl-2表达正相关而与Ki-67表达无关；ID-1、Ki-67及Bcl-2表达与患者的年龄、性别及是否伴淋巴结转移均无关。结论细胞凋亡抑制可能是ID-1参与食管鳞状细胞癌发生发展的主要机制，ID-1不适用于评价食管鳞状细胞癌的淋巴结转移。     

Expression and clinical significance of CtBP2 in human esophageal squamous cell carcinoma

<正>Objective To explore the expression of C-terminal binding protein 2(Ct BP2)in human esophageal carcinoma and its relationship with clinicopathological parameters and survival.Methods The expression levels of CtBP2 in eight cases of fresh frozen specimens of esophageal squamous cell carcinoma(ESCC)and the adjacent e-     

Notch-1、Jagged-1及P-mTOR在胰腺癌中的表达及意义

目的 检测Notch-1、Jagged-1及p-mTOR三种蛋白在胰腺癌组织中的表达并探讨它们与临床病理特征的关系及三者之间的相关性.方法 采用免疫组织化学SP法检测40例胰腺癌组织和20例正常胰腺组织中Notch-1、Jagged-1及p-mTOR三种蛋白的表达.结果 Notch-1的阳性表达主要位于肿瘤细胞胞膜和胞浆,Jagged-1、p-mTOR的阳性表达主要位于细胞浆.Notch-1、Jagged-1及p-mTOR在胰腺癌组织中的阳性表达率分别为80%、75%和72.5%,均显著高于正常胰腺组织中的表达,差异有统计学意义(P<0.05).Notch-1、Jagged-1及p-mTOR的异常表达均与胰腺癌的淋巴结转移和TNM分期有关(P<0.05),与患者的性别、年龄、部位、分化程度和病理分型无关(P>0.05).Notch-1、Jagged-1及p-mTOR三者间的表达均呈正相关.结论 Notch-1、Jagged-1及P-mTOR的过表达促进胰腺癌的发生发展、浸润转移,Notch-1信号通路可能间接调节mTOR的活性.     

Expression and prognostic significance of esophageal squamous cell carcinoma associated long non-coding RNA-1 in esophageal squamous cell carcinoma

正Objective To analyze the expression and prognostic significance of esophageal squamous cell carcinoma associated long non-coding RNA-1 (ESCCAL-1) in esophageal squamous cell carcinoma (ESCC) tissues.Methods From August 2011 to May 2013, 73 patients with ESCC,who received radical resection in the First Affiliated Hospital of Zhengzhou University and Henan Cancer Hospi-     

Prognostic and clinical impact of sarcopenia in esophageal squamous cell carcinoma

Recently, depletion of skeletal muscle mass (sarcopenia) has been linked to poor prognosis in several types of cancers, but has not been investigated in esophageal squamous cell carcinoma (ESCC). This retrospective study investigates the relationship between sarcopenia and clinical outcome in ESCC patients treated by surgical resection or definitive chemoradiation therapy (dCRT). The study was retrospectively conducted in a single academic hospital in Kumamoto, Japan, and involved 325 ESCC patients (256 surgical cases and 69 dCRT cases) treated between April 2005 and April 2011. Skeletal muscle mass was quantified by radiologic measures using standard computed tomography scans. The skeletal muscle tissue in the 325 ESCC patients was distributed as follows: mean: 47.10; median: 46.88; standard deviation (SD): 7.39; range: 31.48–71.11; interquartile range, 46.29–47.90. Skeletal muscle tissue was greater in male patients than in female patients (P < 0.0001), but was independent of other clinical and tumor features. Sarcopenia was not significantly associated with overall survival (log rank P = 0.54). Lymph node involvement significantly altered the relationship between sarcopenia and survival rate (P for interaction = 0.026). Sarcopenia significantly reduced the overall survival of patients without lymph node involvement (log rank P = 0.035), but was uncorrelated with overall survival in patients with lymph involvement (log rank, P = 0.31). The anastomosis leakage rate was significantly higher in the sarcopenia group than in the non‐sarcopenia group (P = 0.032), but other surgical complications did not significantly differ between the two groups. Sarcopenia in ESCC patients without lymph node involvement is associated with poor prognosis, indicating sarcopenia as a potential biomarker for identifying patients likely to experience an inferior outcome. Moreover, sarcopenia was associated with anastomosis leakage but no other short‐term surgical outcome.     

关于食管鳞癌若干临床问题的思考

循证医学是由最佳研究证据、临床技能和患者价值观三元素构成.基于循证医学原理和文献学习,结合我们20余年肿瘤内科医教研阅历,本文认为食管鳞癌临床实践中有诸多问题值得商榷,如:部分患者长期存活给我们什么启示?追逐局部病灶控制,代价可以是多大?营养治疗是否应该融入食管癌综合治疗中?如何利用循证医学原理制定最佳解救化疗方案?选择提升化疗药物剂量强度的方法是否存在偏好?然而,食管鳞癌需要解决的临床问题远不止这些,其中少数问题,例如术前同期化放疗的生存期延长等已经具有最佳医学证据的支持,大多数问题在我国还是需要依据更多非最佳证据、医生的专业知识、临床技能和思维、患者的意愿来逐步解决,不赞成毫无章法的"临床创新",更要放弃权威指南有关食管鳞癌临床路径部分的某些不成熟指引的保守遵循.     

MMP-2、TIMP-4在食管鳞状细胞癌中的表达及意义

目的 探讨食管鳞状细胞癌(ESCC)组织中基质金属蛋白酶2(MMP-2)及其特异性抑制剂基质金属蛋白酶抑制剂4(TIMP-4)的表达及其与临床病理参数的相关性.方法 选取经病理证实的ESCC组织68例及正常食管组织12例,免疫组化方法检测MMP-2与TIMP-4的表达.结果 MMP-2及TIMP-4在ESCC中阳性表达率明显高于正常食管组织(P<0.05);MMP-2表达与ESCC的区域淋巴结转移、浸润深度、临床分期等呈正相关,TIMP-4的表达与上述临床病理参数呈负相关;MMP-2与TIMP-4在ESCC中的表达呈负相关关系.结论 MMP-2和TIMP-4平衡的破坏是ESCC发生侵袭、转移甚至影响预后的重要因素.     

Expression of Bmi-1 and PAI-1 in esophageal squamous cell carcinoma

AIM:To determine the correlation between invasiveness,migration and prognosis in esophageal squamous cell carcinoma(ESCC)and expression of the B-cellspecific Moloney leukemia virus insert site 1(Bmi-1)and plasminogen activator inhibitor-1(PAI-1).METHODS:Eighty previously untreated patients who underwent surgical excision of ESCC were included.The expression of Bmi-1 and PAI-1 was examined immunohistochemically in formalin-fixed paraffinembedded primary tissue specimens.The relationships between the expression of Bmi-1 and PAI-1,the clinicopathologic features of ESCC,and the survival rate of ESCC patients were also discussed.The correlation between Bmi-1 and PAI-1 protein expression in ESCC was analyzed.The relationship between Bmi-1 and PAI-1expression and ESCC prognosis was evaluated using a Cox regression model and Kaplan-Meier survival curve analysis.RESULTS:The rates of positive Bmi-1 and PAI-1 expression in ESCC were higher than those in normal esophageal tissue(P<0.05).The expression of Bmi-1and PAI-1 was correlated with depth of invasion and lymph node metastasis(P<0.05),but not with patient age,tumor size or nationality(P>0.05).The expression of Bmi-1 was positively correlated with that of PAI-1(P<0.05).The 10-year overall survival rate for all patients was 20%(16∕80).Univariate KaplanMeier survival analysis showed that patients with high expression of esophageal PAI-1 and Bmi-1 had lower survival,however,the difference was not statistically significant.Cox multivariate analysis showed that PAI-1and Bmi-1 were not independent factors for survival rate,while the depth of tumor invasion and metastasis were independent factors affecting patient survival.CONCLUSION:The expression of Bmi-1 and PAI-1plays a role in ESCC progression,and may be used as a prognostic marker in ESCC.