结直肠癌组织中CD44V3,v6蛋白的表达意义

目的研究CD44v3,v6蛋白在结直肠癌组织中的表达及其预后意义.方法应用EnvisionTM免疫组化法,回顾性分析121例结直肠癌石蜡组织CD44v3,v6的表达.患者中位随访时间为67.77mo.结果CD44v3,v6在结直肠癌中的阳性率分别为60.3%和57.9%.CD44v3的阳性表达与患者肿瘤部位,淋巴结转移状况、远处转移与否、临床分期密切相关(P＜0.05,Spearman等级相关检验).CD44v6的阳性表达与患者性别、淋巴结转移状况、远处转移与否、临床分期密切相关(P＜0.05,Spearman等级相关检验).Kaplan-Meier生存曲线,Log-rank检验单因素生存分析结果显示,CD44v3阴性、阳性患者的五年生存率分别为81.25%,60.27%,两者之间存在显著性差异(P=0.035);CD44v6阴性、阳性患者的5 a生存率分别为80.39%,60.00%,两者之间亦存在显著性差异(P=0.0299).Cox模型多因素生存分析结果显示,CD44v3表达是影响结直肠癌预后的独立因素.结论CD44v3,v6蛋白与结直肠癌转移、预后相关,CD44v3是影响结直肠癌预后的独立因素.     

明胶酶、CD44v6在结直肠癌中的表达及意义

目的探讨明胶酶在结直肠癌中的表达及其CD44v6在结直肠癌侵袭转移过程中的关系。方法采用明胶酶谱（gel zymography）和S-P免疫组化对50例结直肠癌癌组织和相应正常组织中的明胶酶、CD44v6进行检测。结果明胶酶在结直肠癌中的表达水平显著高于正常组织（P〈0．05）；明胶酶与结直肠癌的Duke’s分期呈同步的正相关（P〈0．05）；明胶酶在CD44v6强阳性组中表达量升高显著（P〈0．05）。结论明胶酶与结直肠癌的侵袭转移性有着密切的关系，不仅在癌细胞的酶解，而且在癌细胞的黏附、运动过程中有可能发挥着重要作用。     

CD44v6 in peripheral blood and bone marrow of patients with gastric cancer as micro-metastasis

AIM:To detect the expression of CD44 correlated withthe ability of micro-metastasis in peripheral blood andbone marrow of patients with gastric cancer and to de-duce its clinical significance.METHODS:Preoperative peripheral blood and bonemarrow specimens from 46 patients with gastric cancerand 6 controls were studied by semi-quantitative RT-PCR amplification of CD44v6mRNA.Preoperative andpostoperative peripheral blood specimens from 40patients with gastric cancer and 14 controls were studiedby quantitative RT-PCR amplification of CD44v6rnRNA inthe corresponding period.RESULTS:Semi-quantitative RI-PCR amplificationshowed that CD44v6mRNA expression of peripheralblood and bone marrow was positive in 39 (84.8%)and 40 (86.9%) of 46 patients with gastric cancer,respectively.In peripheral blood,CD44v6mRNAexpression was positive for diffuse type in 30 (93.8%)of 32 patients and for intestinal type in 9 (64.3%)of 14 patients.On the other hand,in bone marrow,CD44v6mRNA expression was positive for diffuse typein 31 (96.9%) of 32 patients and for intestinal typein 10 (71.4%) of 14 patients.There was a significantdifference between the diffuse type and intestinal type.Quantitative RT-PCR amplification demonstrated thatCD44v6mRNA was not expressed in the peripheral bloodof controls and CD44v6mRNA expression was positivefor preoperative peripheral blood in 40 patients withgastric cancer,the expression levels being from 4.9×102 to 3.2×10~5 copies/g RNA.The average expressionlevel of CD44v6mRNA in peripheral blood was 3.9×10~(10) copies/g RNA.The expression levels of CD44v6mRNAin peripheral blood in gastric cancer patients aftercurative operation increased from 5.5×100 to 7.6×10copies/g RNA (P=0.00496).After curative operation,theexpression level decreased markedly.CONCLUSION:Semi-quantitative and quantitative RT-PCR amplification for CD44v6mRNA is a sensitive andspecific method for the detection of micro-metastasis inperipheral blood and bone marrow,which might be usedas an indicator of tumor burden and therapeutic effect.     

KAI1和CD44v6在骨肉瘤中的表达及意义

目的探讨KAI1和CD44v6蛋白在骨肉瘤中的表达及其与临床病理特征及预后的关系。方法应用免疫组织化学SP法,检测87例骨肉瘤组织中KAI1和CD44v6蛋白的表达,用Cox风险回归模型评价骨肉瘤患者预后独立因素。结果KAI1蛋白与肿瘤的分化程度、远处转移相关,而CD44v6仅与远处转移相关。骨肉瘤KAI1和CD44v6的表达无相关性。Cox模型分析显示影响骨肉瘤患者预后因素是KAI1表达、远处转移和Enneking外科分期。结论KAI1和CD44v6的异常表达参与了骨肉瘤的转移过程,KAI1表达、远处转移、Enneking外科分期是预测骨肉瘤患者预后的独立因素。     

CD44v6和MMP-9在胎盘原位滋养细胞肿瘤中的表达及相关性

目的探讨CD44v6和基质金属酶-9（MMP-9）在胎盘原位滋养细胞肿瘤（PSTT）中的表达及相关性。方法采用SABC免疫组化法检测30例正常绒毛、15例PSTT的CD44v6和MMP-9表达情况。结果CD44v6在正常胎盘绒毛、良性PSTT、恶性PSTT的阳性表达率分别是3．3％、30．3％、100％,组间比较差异有统计学意义（P〈0．05）;而MMP-9的阳性表达率分别为6．7％、38．5％、100％,组间比较差异有统计学意义（P〈0．05）。结论CD44v6和MMP-9的过表达促进PSTT的浸润转移,二者具有正协同作用,联合检测CD44v6和MMP-9蛋白可作为PSTT的浸润转移及评价预后生物学指标。     

CD44v6在胃癌胃镜标本和术后标本中的表达及与胃癌生物学行为的关系

目的:研究CD44v6在胃癌胃镜标本和术后标本中的表达,并分析其与胃癌生物学行为的关系.方法:随机选取辽宁医学院附属第二医院普通外科2004-2009年收治的有详细病例资料的胃癌患者50例,应用免疫组织化学方法检测胃镜标本和术后标本胃组织中CD44v6的表达.结果:CD44v6在胃癌胃镜标本、术后标本和转移淋巴结中的表达率分别为60.00%、64.00%、80.77%.显著高于胃良性病变(P＜0.01);CD44v6在肠型胃癌中的表达率显著高于弥漫型胃癌(75.86% vs 47.62%,P＜0.05).胃癌胃镜和术后标本中CD44v6的表达与胃癌浸润深度,TNM分期和淋巴结转移均有关(P＜0.05).CD44v6在胃癌胃镜标本和术后标本中的总体表达率无显著性差异(P＞0.05);相同临床病理参数,CD44v6在胃癌胃镜标本和术后标本中的表达率无显著性差异(P＞0.05).结论:CD44v6可作为术前预测胃癌的发生、病期进展和转移潜能的辅助生物学指标之一.     

Expression of human chorionic gonadotropin, CD44v6 and CD44v4/5 in esophageal squamous cell carcinoma

AIM: To study the relationship between the expression of human chorionic gonadotropin (HCG), CD44v6, CD44v4/5 and the infiltration, metastasis of esophageal squamous cell carcinoma. METHODS: By labeled streptavidin-biotin technique, the expressions of HCG, CD44v6, and CD44v4/5 in 42 patients with esophageal squamous cell carcinoma were examined. RESULTS: The positive rate of HCG expression in patients with lymph node metastasis was 85.71% (18/21), higher than that (57.14%, 12/21) in those without lymph node metastasis (P<0.05). The positive rate of CD44v6 expression was 71.43% (15/21) in lymph node metastasis group, and 38.09% (8/21) in non-metastasis group; there was a significant difference between the two groups (P<0.05). The positive rate of CD44v4/5 expression was 76.19% (16/21) in lymph node metastasis group, and 42.86% (9/21) in non-metastasis group; there was also a significant difference between them (P<0.05). From grade Ⅰ to grade Ⅲ in differentiation, the positive rate of HCG expression was 84.62% (11/13), 70.59% (12/17) and 58.33% (7/12), respectively; there was no significant difference among them (P<0.05). The positive rate of CD44v6 expression in grades Ⅰ-Ⅲ of cancer tissues was 76.92% (10/13), 52.94% (9/17), and 33.33% (4/12) respectively; there was no significant difference among them. The positive rate of CD44v4/5 expression in grades Ⅰ-Ⅲ of cancer tissues was 69.23% (9/13), 64.71% (11/17), and 41.67% (5/12) respectively; there was no significant difference among the three groups. There was no correlation between the positive rates of HCG and CD44v6, CD44v4/5 expression. Cancer cells in carcinomatous emboli and those infiltrating into vascular wall strongly expressed HCG, CD44v6, and CD44v4/5. CONCLUSION: Expression of HCG, CD44v6, and CD44v4/5 in esophageal squamous cell carcinoma is related to its infiltration and metastasis. HCG, CD44v6, and CD44v4/5 have different effects on the infiltration and metastasis of esophageal squamous cell carcinoma.     

Expression of two CD44 variant proteins (v3 and v6 ) in human colorectalcarcinoma and its relevance for prognosis

AIM To evaluate the expression of CD44v3 and v6 protein in colorectal carcinoma and its prognosticsignificance.METHODS One hundred and twenty-one cases of formalin-fixed paraffin-embedded colorectal carcinomaspecimens were retrospectively analyzed using EnvisionTM immunohistochemical method with the monoclonalantibody CD44v3 and v6. The median follow-up time was 67.77 months and the prognostic value of theCD44v3 and CD44v6 was assessed using univariate and multivariate survival analysis.RESULTS The positive rates of CD44v3 and v6 protein were 60.3% and 57.9%, respectively. There wassignificant correlation between CD44v3 immunoreactivity and tumor location, lymph node metastasis, distantmetastasis and Duke's stage (P< 0.05, Spearman correlation test). Significant correlation between CD44v6immunoreactivity and patients' gender, lymph node metastasis, distant metastasis, Duke's stage was alsonoticed (P < 0.05, Spearman correlation test). The 5-year survival rates were 81.25% and 60.27% inCD44v3 negative and positive cases, respectively. As CD44v6, the 5-year survival rates were 80.39% and60.00% in CD44v6 negative and positive cases, respectively; these differences between the two groups ofpatients were significant (P<0.05, Log-rank test). In multivariate analysis using the Cox regression model,CD44v3 expression emerges as an independent prognostic indicator.CONCLUSION CD44v3 and v6 might play some important roles in metastasis of colorectal carcinoma, andCD44v3 expression might be a new useful independent prognostic marker of colorectal carcinoma.     

骨桥蛋白和CD44v6在肝癌中的表达及意义

骨桥蛋白(osteopontin，OPN)是一种分泌型钙结合磷酸化糖蛋白，其中含有特异的与细胞黏附有关的RGD(Arg-Gly-Asp)序列，通过与其受体整合素、CD44等结合来促进细胞的趋化、黏附和迁移，从而介导肿瘤细胞的侵袭转移，在肿瘤的复发与转移中起到重要作用。OPN过表达与肝癌的复发和转移有关，并认为是早期预测肿瘤复发的一个指标。现对OPN和CD44v6在肝癌中的表达进行研究，以了解其临床意义。     

胆囊癌组织中CD44v6和nm23的表达及其意义

目的研究胆囊癌组织中CD44v6、nm23蛋白表达及意义和两者之间的关系。方法用免疫组化的方法检测 36例胆囊癌和27例癌旁上皮组织中CD44v6和nm23蛋白的表达。结果胆囊癌组织中CD44v6和nm23的阳性率分别为41.7％和72.2％,均与癌旁上皮的阳性率有显著性差异:CD44v6的表达与胆囊癌的淋巴结转移呈正相关,而与组织学类型、临床分期无关;nm23的表达与胆囊癌的淋巴结转移、临床分期呈负相关,而与组织学类型无关。CD44v6和nm23蛋白的表达呈负相关。结论 CD44v6和nm23蛋白可能在胆囊癌的形成、淋巴结转移和病程进展等方面起着重要作用,且两者呈互相拮抗的关系,可作为判断胆囊癌侵袭和淋巴结转移的标记物。     

胃癌组织α-连环素和CD44v6表达的检测和意义

目的 研究胃癌组织和癌旁正常胃黏膜组织α-连环素和CD44v6的表达，以探讨它们的表达异常与胃癌病人的临床和病理特征的关系。方法采用免疫组化的方法半定量地检测胃癌组织和胃癌的癌旁正常黏膜这两种细胞黏附分子的表达情况并将二者的表达情况和胃癌病人的临床和病理特征进行比较。结果部分胃癌组织中α-连环素表达减少或消失，而在正常黏膜中α-连环素均正常表达。α-连环素的表达异常与胃癌病人的性别、年龄、胃癌的部位无明显相关性（P〉0．05），与胃癌组织的病理分级及远处转移有相关性（P〈0．05）。在正常胃黏膜中CD44v6无表达，而在部分胃癌组织中CD44v6呈阳性表达，二者差异具有显著性（P〈0．005）。CD44v6的表达上调与胃癌病人的性别、年龄、胃癌的部位及病理分级无明显厢关性（P〉0．05），与理处转移呈正相关（P〈0．05）。胃癌组织中α-连环素和CD44v6的表达呈负相关（P〈0．05）。结论胃癌组织中α-连环素和CD44v6有异常表达；胃癌的远处与原转移发肿瘤组织中α-连环素和CD44v6的异常表达有关；α-连环素和CD44v6的异常表达参与了肿瘤的转移过程。     

CD44v17在胃癌组织中的表达及其与临床生物学特性之间的关系

目的 探讨一种新的CD44变异体（CD44v17）在胃癌组织中的表达及其与临床生物学特性之间的关系.方法根据本实验室在MCF-7／Adr中新发现的1种CD44剪切拼接变异体CD44v17设计特异性引物,应用SYBR Green I荧光染料,采用实时PCR法检测87例胃癌组织及相应癌旁组织CD44v17 Mrna的表达,根据标准曲线计算CD44v17mRNA的表达量,分析CD44v17mRNA表达与胃癌临床生物学特性之间的关系.结果胃癌组织CD44v17 Mrna表达明显高于相应癌旁正常组织（P〈0.05）;肿瘤〉5 cm组CD44v17 Mrna表达与肿瘤≤5 cm组表达比较差异无显著性（P〉0.05）;未分化腺癌组表达明显高于乳头状腺癌及管状腺癌组（P〈0.05）,乳头状腺癌组CD44v17 Mrna表达与管状腺癌组比较差异无显著性（P〉0.05）;肿瘤累及浆膜及浆膜外组CD44v17 Mrna表达显著高于侵及黏膜、黏膜下层及肌层组（P〈0.05）,而肿瘤侵及黏膜及黏膜下层组的CD44v17 Mrna表达与侵犯肌层组表达比较差异无显著性（P〉0.05）.淋巴结转移组CD44v17 Mrna表达明显高于淋巴结无转移组（P〈0.05）;有肝脏转移组CD44v17 Mrna表达显著高于无肝脏转移组（P〈0.05）.结论CD44v17 Mrna在胃癌组织中高表达,可能与胃癌的侵袭、转移及预后有关.     

胆囊肿瘤组织中CD44v6和C-erbB-2的表达及相关性研究

研究CD4 4v6和C -erbB - 2癌基因蛋白产物在胆囊癌组织中的表达与组织类型、病理分级和转移的关系 ,并探讨CD4 4v6与癌基因蛋白表达的相关性。应用催化信号放大免疫组织化学方法 ,检测 5 0例胆囊腺癌、2 0例胆囊腺瘤和 10例慢性胆囊炎组织中CD4 4v6和C -erbB - 2表达。结果显示 ,在胆囊癌中CD4 4v6和C -erbB - 2阳性表达率分别为 82 0 %和 6 6 0 %。两者表达阳性率在胆囊癌中均明显高于胆囊腺瘤 (P <0 0 5 ) ,并与胆囊癌的组织类型、病理分级和转移密切相关 (P <0 0 5 )。CD4 4v6表达与C -erbB - 2表达呈明显相关联 (P <0 0 5 )。CD4 4v6和C -erbB - 2均是胆囊癌高度恶性和预后不良的重要指标。胆囊癌CD4 4v6表达与C -erbB - 2蛋白表达具有相互协同作用的可能     

Expression and significance of CD44s, CD44v6, and nm23 mRNA in human cancer

AIM: To investigate the relationship between the expression levels of nm23 mRNA, CD44s, and CD44v6,and oncogenesis, development and metastasis of human gastric adenocarcinoma, colorectal adenocarcinoma,intraductal carcinoma of breast, and lung cancer.METHODS: Using tissue microarray by immuhistochemical (IHC) staining and in situ hybri-dization (ISH), we examined the expression levels of nm23mRNA, CD44s, and CD44v6 in 62 specimens of human gastric adenocarcinoma and 62 specimens of colorectal adenocarcinoma; the expression of CD44s and CD44v6in 120 specimens of intraductal carcinoma of breast and 20 specimens of normal breast tissue; the expression of nm23 mRNA in 72 specimens of human lung cancer and 23 specimens of normal tissue adjacent to cancer.RESULTS: The expression of nm23 mRNA in the tissues of gastric and colorectal adenocarcinoma was not significantly different from that in the normal tissues adjacent to cancer (P＞0.05), and was not associated with the invasion of tumor and the pathology grade of adenocarcinoma (P＞0.05). However, the expression of nm23 mRNA was correlated negatively to the lymph node metastasis of gastric and colorectal adenocarcinoma (r = -0.49, P＜0.01; r = -4.93, P＜0.01). The expression of CD44s in the tissues of gastric and colorectal adenocarcinoma was significantly different from that in the normal tissues adjacent to cancer (P＜0.05;P＜0.01). CD44v6 was expressed in the tissues of gastric and colorectal adenocarcinoma only, the expression of CD44v6 was significantly associated with the lymph node metastasis, invasion and pathological grade of the tumor (r = 0.47, P＜0.01; r = 5.04, P＜0.01). CD44sand CD44v6 were expressed in intraductal carcinoma of breast, the expression of CD44s and CD44v6 was significantly associated with lymph node metastases and invasion (P＜0.01). However, neither of them was expressed in the normal breast tissue. In addition, the expression of CD44v6 was closely related to the degree of cell differentiation of intraductal carcinoma of breast (x2= 5.68, P＜0.05). The expressional level of nm23mRNA was closely related to the degree of cell differentiation (P＜0.05) and lymph node metastasis (P＜0.01), but the expression of nm23 gene was not related to sex, age, and type of histological classification (P＞0.05).CONCLUSION: Patients with overexpression of CD44s and CD44v6 and low expression of nm23 mRNA have a higher lymph node metastatic rate and invasion. In addition, overexpression of CD44v6 is closely related to the degree of cell differentiation. Detection of the three genes is able to provide a reliable index to evaluate the invasion and metastasis of tumor cells.     

胃癌中CD15s抗原和CD44v6基因蛋白的表达及其意义

[目的 ]探讨唾液酸化的路易斯寡糖 X(CD15s)抗原和CD4 4v6基因蛋白表达与胃癌临床病理指标和患者预后的关系。 [方法 ]应用高敏感性的催化信号放大免疫组化技术 ,对早期胃癌 17例、中期胃癌 2 1例和晚期胃癌5 7例组织进行CD15s抗原和CD4 4v6蛋白检测 ,并结合肿瘤的病理学指标和临床随访资料进行分析。 [结果 ]在胃癌中 ,CD15s和CD4 4v6的表达阳性率分别为 86 .3%和 82 .1%。且晚期胃癌明显高于早、中期胃癌 (P <0 .0 5 )。CD15s和CD4 4v6表达水平具有一致性 ,均与胃癌浆膜浸润、淋巴结转移和患者预后呈正相关 (P <0 .0 5 )。 [结论 ]CD15s和CD4 4v6表达与胃癌转移和患者生存期密切相关 ,检测CD15s和CD4 4v6的表达可作为判断胃癌预后的参考指标。     

CD44v3和CD44v6在溃疡性结肠炎与其他类型结肠炎中的表达

目的比较CD44v3和CD44v6在溃疡性结肠炎(UC)与对照组(包括感染性结肠炎、阿米巴痢疾、血吸虫性结肠炎及克罗恩病等其他类型结肠炎)中表达的差异.方法免疫组化SP法检测两组患者结肠粘膜CD44v3和CD44v6的表达.结果 UC组患者CD44v3和CD44v6表达阳性率分别为68.8%和56.3%,与对照组比较有显著性增高(P<0.05).UC组与感染性结肠炎、阿米巴痢疾、血吸虫性结肠炎病及克罗恩病分别比较差异仍有显著性(P<0.05).结论 CD44v3和CD44v6的检测有助于鉴别UC和感染性结肠炎等其他类型结肠炎.     

肝细胞癌CD44v6和p16基因蛋白的表达及其意义

目的探讨CD44v6和p16基因蛋白表达与肝细胞癌(HCC)转移和预后的关系。方法应用免疫组织化学方法,检测分析110例HCC组织中CD44v6及p116蛋白表达,结合随访资料分析。结果在HCC中,CD44v6和p16阳性表达率分别为42.7%和34.5%。CD44v6阳性表达的HCC转移率高(P<0.05),分化程度和患者>5年生存率低(P<0.05);p16阳性表达的HCC转移率低(P<0.05),分化程度和患者>5年生存率高(P<0.05)。CD44v6与p16表达呈负相关(r=-0.59,P<0.005)。结论CD44v6和p16表达与HCC转移和患者生存期密切相关,检测CD44v6和p16蛋白的表达可作为判断HCC预后的参考指标。     

胃癌患者血清及癌组织中CD44v6表达及意义

[目的]检测胃癌患者血清及胃癌组织中CD44v6的表达及其与胃癌临床病理特征间的关系,进一步阐述CD44v6在胃癌发生发展中的作用。[方法]收集40例经病理证实的胃癌患者,20例正常健康体检者为对照组,20例取自距癌组织边缘5cm以上癌旁胃黏膜标本。采用双抗体夹心-酶联免疫吸附法检测40例胃癌患者术前和20例正常健康者血清中CD44v6水平,免疫组化SP法测定40例经手术切除的胃癌组织标本和20例癌旁胃黏膜标本中CD44v6的表达。[结果]①胃癌患者血清中CD44v6[(177.21±46.48)μg/L]高于正常健康者(P<0.01)。②癌组织中CD44v6的阳性表达率为77.5%,显著高于癌旁胃黏膜中的表达(P<0.01),CD44v6在血清和组织中的表达随组织学分级、临床分期的增高及有无淋巴结转移而升高,呈正相关性。[结论]CD44v6参与了胃癌的发生,并且可反映机体肿瘤的负荷状态及预测肿瘤的进展;检测CD44v6的血清含量可能为胃癌的诊断提供依据。