膜联蛋白A2在输卵管癌中的表达及临床意义

目的:检测膜联蛋白A2（annexinA2,ANXA2）在输卵管癌组织中的表达情况,并探讨膜联蛋白A2的表达与输卵管癌患者临床病理参数的关系及其预后的相关性。方法:采用免疫组化SP法检测62例输卵管癌组织和25例正常输卵管组织中ANXA2的表达情况,分析其与输卵管癌患者临床病理参数及疾病预后的关系。结果:ANXA2主要定位于细胞膜,亦在细胞质着色,ANXA2在输卵管癌中的高阳性表达率为50％,明显低于正常输卵管组织（96%）,P＜0.01;ANXA2的高阳性表达率随着输卵管癌分化程度降低而降低(P＜0.05);生存曲线分析显示ANXA2阴性表达的输卵管癌患者总体生存率缩短(P＜0.05)。结论:ANXA2在输卵管癌组织中表达降低,且与输卵管癌不良预后有关,可用于临床监测输卵管癌患者病情变化。     

膜联蛋白Ⅰ在肿瘤中的研究进展

膜联蛋白(Annexins)是一类结构相关钙依赖的磷脂结合蛋白超家族,约占细胞总蛋白的2%.在细胞中参与膜转运及膜表面一系列依赖于钙调蛋白的活动,包括囊泡运输、胞吐作用中的膜融合、信号传导和钙离子通道的形成、调控炎症反应、细胞分化和细胞骨架蛋白间的相互作用等.     

成束蛋白和膜联蛋白I在食管鳞状细胞癌癌前病变中的表达

背景与目的：研究食管鳞状细胞癌癌变早期异常改变的蛋白质以发现与食管癌早期病变相关的特征性标志分子。探讨了成束蛋白和膜联蛋白Ⅰ在食管癌癌前病变中的表达情况。方法：应用免疫组化方法分析食管癌高发现场癌前病变样本中成束蛋白和膜联蛋白Ⅰ的表达水平，用X^2检验对比成束蛋白和膜联蛋白Ⅰ在不同程度癌前病变和食管癌中的表达差异。其中包括，食管鳞状细胞癌癌前病变54例、正常食管上皮8例和中晚期食管癌9例成束蛋白的表达水平；以及食管鳞状细胞癌前病变52例、正常食管上皮11例和中晚期食管癌7例的膜联蛋白Ⅰ表达水平。结果：与正常食管鳞状上皮相比，成束蛋白在食管癌及其癌前病变中表达增强，其表达阳性率为低度癌前病变（轻度和中度不典型增生）85．7％（24／28）、高度癌前病变（重度不典型增生和原位癌）84．6％（22／26）和中晚期食管癌88．9％（8／9）。然而，膜联蛋白Ⅰ在食管癌及其癌前病变中表达降低或丢失，其表达阳性率分别为低度癌前病变14．3％（4／28）、高度癌前病变8．3％（2／24）和中晚期食管癌0％（0／7）。与正常食管上皮相比，成束蛋白和膜联蛋白Ⅰ在食管低度癌前病变中表达程度的异常均具有显著意义，P值分别为0．003和0．000。结论：成束蛋白异常增强和膜联蛋白Ⅰ的丢失与食管癌癌前病变相关。     

膜联蛋白 A2在子宫内膜癌组织中的表达及临床意义

目的：检测膜联蛋白（annexin A2,ANXA2）在子宫内膜癌中的表达情况,探讨 ANXA2表达与子宫内膜癌临床病理参数的关系及临床意义。方法：采用免疫组化 SP 法检测76例子宫内膜癌、27例非典型增生子宫内膜及16例正常子宫内膜中 ANXA2的表达情况,并分析其与子宫内膜癌临床病理参数及预后的关系。结果：ANXA2在子宫内膜癌组（96.1%）和非典型增生组（96.3%）的阳性率明显高于正常子宫内膜组（62.5%）（P 均<0.05）。ANXA2表达随着 FIGO 分期增加、分化程度减低而逐渐增加（P <0.05）,ER、PR 阴性组 ANXA2阳性率（均为100.0%）明显高于阳性组（分别为87.5%,88.0%）（P 均<0.05）,而淋巴结转移阳性组 ANXA2高表达率（93.8%）明显高于淋巴结转移阴性组（60.0%）（P <0.05）。ANXA2低表达组子宫内膜癌患者预后更佳（P <0.05）。结论：ANXA2在子宫内膜癌组织中的表达明显增高,ANXA2可监测子宫内膜癌患者预后。     

膜联蛋白A1在非小细胞肺癌组织中的表达及意义

  目的  检测膜联蛋白A1（annexin A1,ANXA1）在人非小细胞肺癌组织中的表达情况,并探讨其临床意义。  方法  通过实时荧光定量PCR、蛋白免疫印迹和免疫组织化学技术检测非小细胞肺癌患者肺癌组织和癌旁组织（距肿瘤边缘>5 cm）中膜联蛋白A1的表达水平,并分析其与临床病理参数之间的关系。  结果  实时荧光定量PCR显示,膜联蛋白A1 mRNA在肺癌组织中的表达水平（0.574±1.403）高于癌旁组织（0.240±0.893）,差异具有统计学意义（t=2.060,P=0.045）。肺癌组织中膜联蛋白A1的表达与其分化程度、淋巴结转移、TNM分期相关（P < 0.05）;与性别、年龄、吸烟史、肿瘤直径、组织学类型无关（P > 0.05）。蛋白免疫印迹和免疫组织化学结果均显示,膜联蛋白A1蛋白在肺癌组织中的表达高于癌旁组织。  结论  ANXA1在非小细胞肺癌患者肺癌组织中呈高表达,可能与其发生发展和侵袭转移有一定关系。      

膜联蛋白-1在精原细胞癌中表达的临床病理意义

目的：研究膜联蛋白-1（Annexin-1）在精原细胞癌组织中的表达情况,探讨其临床意义。方法：应用免疫组织化学SABC法检测25例精原细胞癌组织,25例正常睾丸组织中膜联蛋白-1的表达情况,并对膜联蛋白-1表达与精原细胞癌的关系进行分析。结果：正常睾丸组织及精原细胞癌膜联蛋白-1阳性率分别为：76.00%、16.00%,膜联蛋白-1的表达与肿瘤的临床分期和肿瘤分化程度无关（P〉0.05）。结论：膜联蛋白-1检测有助于提高精原细胞癌的早期诊断率。     

膜联蛋白-1在食管鳞状细胞癌发生发展中的表达差异

目的　检测膜联蛋白 -1(annexin -1)在食管鳞状细胞癌及癌前病变中的表达差异。方法　应用免疫组化S -P方法检测 13 5例食管鳞状细胞癌及其癌旁正常鳞状上皮、原位癌及其不典型增生病变中annexin -1的表达情况。结果　annexin -1在 12 9例 (95 .6% )癌旁正常食管鳞状上皮呈强阳性表达 ;在 3 5例 (2 5 .9% )鳞状细胞癌呈阳性表达 ,60例 (4 4 .4% )为弱阳性 ,40例(2 9.6% )为阴性 ,统计学处理有极显著性差异 (P <0 .0 1)。食管鳞状细胞癌annexin -1表达下降与患者的年龄、性别、肿瘤分化程度及淋巴结转移无关 (P >0 .0 5 )。annexin -1在原位癌和不典型增生病变的表达亦呈下降趋势 ,与正常鳞状上皮比较有非常显著性差异 (P <0 .0 1)。结论　annexin -1蛋白在食管鳞状细胞癌和癌前病变中有不同程度的丢失 ,它很可能成为食管癌早期诊断以及预测食管癌前病变癌变风险的具有重要应用价值的指标     

膜联蛋白A1和Ki67抗原在胰腺癌组织中的表达及其相互关系

[目的]探讨膜联蛋白A1（annexinA1,ANXA1）在胰腺癌中表达及其与细胞核相关抗原Ki67的相关性。[方法]构建胰腺癌组织芯片,在连续的芯片切片上使用免疫组化法检测ANXA1和Ki67蛋白表达情况,分析两者之间表达的相关性。[结果]胰腺癌组织芯片免疫组化结果显示,ANXA1在胰腺癌中表达的阳性率为71.4%（30/42）,明显高于正常胰腺组织中表达的阳性率18.4%（7/38）（P〈0.01）。Ki67在胰腺癌中表达的阳性率为69.5%（27/41）,也明显高于正常胰腺组织中表达的阳性率23.7%（9/38）（P〈0.01）。在胰腺癌中ANXA1与Ki67的表达存在显著的相关性（P〈0.01）。[结论]ANXA1蛋白在胰腺癌中的表达明显升高,与Ki67的表达有着显著的相关性。     

膜联蛋白A2在喉癌发生发展中的表达及意义

目的探讨膜联蛋白A2在喉癌发生发展中的表达及意义。方法选取2016年8月至2019年2月间渭南市中心医院收治的60例喉癌患者组织标本及37例癌旁组织标本(距癌灶2cm以上),另选取同期30例喉息肉切除术患者的喉组织作为正常标本。采用免疫组化方法检测3组组织标本中膜联蛋白A2的表达水平,分析膜联蛋白A2的表达与喉癌患者临床病理特征的关系。结果膜联蛋白A2在24例喉癌组织中呈高表达,在36例喉癌组织中呈低表达,在癌旁组织与正常组织中均呈低表达,差异有统计学意义(P <0. 05)。膜联蛋白A2表达随喉癌临床分期的增高而增高,提示膜联蛋白A2表达与临床分期有关(P <0. 05);膜联蛋白A2与患者性别、年龄、肿瘤直径、分型、分化程度和淋巴结转移无明显相关性(P> 0. 05)。结论膜联蛋白A2可能参与喉癌的发生发展过程。     

IGF-Ⅰ及IGF-ⅠR在肾细胞癌中的表达和临床意义

目的探讨胰岛素样生长因子Ⅰ(IGF-Ⅰ)及其受体(IGF-ⅠR)在肾细胞癌中表达的意义。方法应用免疫组化法检测40例肾细胞癌、25例癌旁组织及10例正常肾组织中IGF-Ⅰ及IGF-ⅠR的表达,并对两者与组织学分级、淋巴转移和临床分期等临床资料的关系进行分析。结果 IGF-Ⅰ、IGF-ⅠR在肾细胞癌标本中阳性率明显高于癌旁及正常组织(均P<0.01),但与肾细胞癌的分级、分期及淋巴结转移情况无相关性(均P>0.05)。结论 IGF-Ⅰ、IGF-ⅠR在肾细胞癌的发生发展中起重要的作用,两者对肾细胞癌的早期诊断、免疫治疗或基因治疗具有一定的临床价值。     

Expression of MUC2-mucin in colorectal adenomas and carcinomas of different histological types

The expression of mucin MUC2 was investigated in normal colonic tissue, in colonic adenomas and in carcinomas of the mucinous and non-mucinous type. The latter were subdivided into carcinomas originating from the adenoma-carcinoma sequence (ACS) and de novo (DN) carcinomas. The expression was assayed by immunohistochemistry with the monoclonal anti-MUC2 antibody CCP58 and by mRNA semiquantitation. MUC2 protein epitope CCP58 was strongly expressed in 21 % of normal colonic tissues, in 40% of villous and in 48% of tubular adenomas. Mucinous carcinomas exhibited strong expression in 72%, ACS carcinomas in 21 % and DN adenocarcinomas in none of the tumors investigated. Compared with the adjacent non malignant tissue (transitional mucosa), CCP58 epitope expression in the tumor was higher in 74% of mucinous carcinomas, but equal or lower in 69% of ACS carcinomas and in 100% of de novo carcinomas. The alterations of MUC2 expression detected by immunohistochemistry in adenocarcinomas were confirmed on mRNA level. These data indicate that the MUC2 expression pattern is different in the 3 carcinoma types investigated. MUC2 over-expression occurs in the adenomatous tissue. It is always maintained in mucinous carcinomas, but frequently decreased in non-mucinous ACS carcinomas. DN carcinomas are most frequently associated with decreased expression of MUC2. © 1994 Wiley-Liss, Inc.     

Expression of p53 protein in invasive colorectal carcinomas of different histologic types.

BACKGROUND. This study was performed to determine whether morphologic differences of colonic cancer types can be related to different genotypes of these tumors. METHODS. Paraffin sections of 76 human invasive colorectal carcinomas were examined for the overexpression of p53 oncoprotein with the avidin-biotin complex-peroxidase staining procedure and CM-1 antiserum, which detects p53 protein in paraffin-embedded material. The tumors were categorized as mucinous (22 cases), most of which originated from adenomas, and nonmucinous, which were subdivided into carcinomas originating from adenoma-carcinoma sequence (ACS) (29 cases) and de novo (DN) carcinomas (25 cases). RESULTS. Nineteen DN carcinomas (76%), 21 ACS carcinomas (72%), and 8 mucinous carcinomas (36%) exhibited detectable amounts of p53 protein in the tumor cell nuclei. Strong overexpression of p53 protein coincided with a high percentage (> 40%) of stained nuclei in 40% of ACS and 48% of DN carcinomas versus 9% of mucinous tumors. The percentage of stained nuclei, intensity of staining, and distribution of the stained areas did not correlate with the grade of differentiation or the invasive edge of the tumors. Along with nuclear staining of the tumor area, a distinct perinuclear staining of normal epithelial cells adjacent to the tumor was observed in 48% of DN, 7% of ACS, and 9% of mucinous carcinomas. CONCLUSIONS. The current results, in combination with the recently published data on Ki-ras and c-myc alterations, indicate that mucinous carcinomas differ from nonmucinous colorectal carcinomas in their genetic lesions.     

成束蛋白和细胞角蛋白14在多种肿瘤组织中的表达及其鉴别诊断意义

目的 揭示成束蛋白(fascin)和细胞角蛋白14(CK14)在不同器官的相同或不同组织学类型癌组织中的表达规律,探讨其鉴别诊断的应用价值.方法 构建450例不同器官的相同或不同组织学类型癌组织芯片,用免疫组化方法检测fascin和CK14的表达情况.结果 fascin在食管、肺、喉、宫颈和外生殖器的鳞癌中弥漫高表达,阳性率分别为90.0%、90.0%、96.7%、78.6%和89.7%,在肺腺癌、胃腺癌、结直肠腺癌、肝细胞癌、胰腺导管腺癌、乳腺浸润性导管癌、甲状腺乳头状癌、子宫宫内膜样腺癌、卵巢浆液性囊腺癌和肾透明细胞癌中表达阳性率分别为38.0%、23.3%、14.3%、10.3%、73.3%、13.3%、6.7%、60.0%、66.7%和10.0%;在鳞癌和其他组织学类型肿瘤中的表达差异有统计学意义(P＜0.001).CK14在食管、肺、喉、宫颈和外生殖器鳞癌中表达阳性率分别为76.7%、36.7%、83.3%、60.7%和96.3%,而在肺腺癌、胃腺癌、结直肠腺癌、肝细胞癌、胰腺导管腺癌、乳腺浸润性导管癌、甲状腺乳头状癌、子宫宫内膜样腺癌、卵巢浆液性囊腺癌和肾透明细胞癌中表达阳性率分别为13.3%、13.3%、20.7%、41.4%、46.7%、6.7%、40.0%、13.3%、20.0%和6.7%;在鳞癌和其他组织学类型肿瘤中的表达差异有统计学意义(P＜0.001).fascin与CK14联合,在鳞癌中任一蛋白阳性率,与在其他组织学类型肿瘤中的表达差异均有统计学意义(P＜0.001).结论 fascin和CK14在多器官鳞癌呈高表达,在其他组织学类型肿瘤呈较低表达.联合检测fascin和CK14的表达,可用于鳞癌的诊断和鉴别诊断.     

Increasing incidence of both major histological types of esophageal carcinomas among men in Sweden

Although a rare tumor form, there is evidence that the incidence of esophageal adenocarcinomas is increasing in Western Europe and the US. The aim of this nationwide population-based study was to describe the secular trends in the incidence rates of adenocarcinoma and squamous-cell carcinoma of the esophagus over a 28-year period from I960 to 1987. The Swedish Cancer Registry, complete to more than 95%, was used to identify the cases. The percentage verified by histology rose from 89% to 98%. The age-standardized incidence rate of adenocarcinoma increased in males from 0.5 per I0⁵ in 1960–63 to 1.1 per 10⁵ in 1984–87, corresponding to an average annual increase of 1.5%. In females the incidence remained stable around 0.2 per I0⁵. The age-standardized incidence rate of squamous-cell carcinoma in males increased from 2.9 to 4.0 per 10⁵, corresponding to an average annual increase of 1.0%. In females the rate decreased from 1.4 to 1.2 per I0⁵, corresponding to an annual average decrease of 0.5%. The male/female ratio was 4.6 for adenocarcinoma and 2.7 for squamous-cell carcinoma of the esophagus. Since the incidence rates of squamous-cell carcinoma of the esophagus and of adenocarcinoma seem to be rising, there is a great need for well-planned analytical epidemiological studies of these tumor locations, taking the histological type into consideration.     

Synchronous unilateral parotid neoplasms of different histological types.

The occurrence of multiple tumours in the salivary glands is an unusual phenomenon and the simultaneous development of tumours different types is extremely rare. Two cases are presented with synchronous tumours of the parotid gland of different histological types. The first was a Warthin tumour in combination with a metastatic lung carcinoma and the second was a pleomorphic adenoma in combination with non-Hodgkin's malignant lymphoma.     

The ultrastructural characteristics of different histological types of bronchiolar-alveolar cancer

Morphological study of bronchioloalveolar carcinoma (BAC) was performed by light or electron microscopy in 100 and 33 patients, respectively. BAC-1, 2 and 3 histologic subtypes were established basing on ultrastructural peculiarities which betrayed different cytogenetic origins. Electron microscopic signs of goblet cells were found in cells constituting BAC-1 tumors. BAC-2 tumor cells exhibited ultrastructural characteristics of Clara cells and/or type-II pneumocytes. BAC-3 tumors appeared less differentiated and contained mainly undifferentiated cells and cell clusters displaying various combinations of electron microscopic markers of goblet and Clara cells and type-II pneumocytes.     

EXPRESSION OF VEGF RECEPTOR KDR IN DIFFERENT ORIGINATED CARCINOMAS

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Occurrence of human papillomavirus types 16 and 18 DNA in cervical carcinomas from Japan: age of patients and histological type of carcinomas

We have detected by DNA hybridization human papillomavirus (HPV) types 16 and 18 DNA sequences in 19 and 3, respectively, out of 56 cervical carcinomas from Japan. Eighteen out of 19 HPV 16-positive specimens were from squamous cell carcinomas, whereas the three HPV 18-positive specimens were from a squamous cell carcinoma (1/50), an adenosquamous carcinoma (1/3), and an adenocarcinoma (1/3). The occurrence of HPV 16 DNA decreased in patients over 60 years old (less than or equal to 60 years, 15/34 (44%); 60 years less than, 4/22 (18%)) (P less than 0.05).