苏木对肺癌干细胞荷瘤小鼠原发肿瘤CD44v6表达的影响

目的研究苏木对肺癌干细胞样细胞PG-BE1荷瘤小鼠原发瘤中CD44v6蛋白表达的影响。方法利用无血清培养法分选PG-BE1细胞中的干细胞样细胞,将干细胞样细胞亚群接种于小鼠下肢脚垫。采用药物对小鼠进行干预,第21天剥取小鼠原发瘤组织,采用Western Blot法、免疫组化法检测原发瘤组织CD44v6的表达。结果原发瘤重方面,苏木联合顺铂组较空白组、苏木组和顺铂组减少(P<0.05)。苏木加顺铂组较顺铂组、苏木组、空白组CD44V6表达较少(P<0.05)。免疫组化法检测苏木在原发瘤组织中CD44v6均有表达。结论苏木可以协同顺铂减少CD44v6蛋白的表达从而增加肺癌干细胞样细胞荷瘤小鼠模型原发肿瘤的抑瘤率。

CIP2A、CD44v6在尖锐湿疣患者皮损组织中的表达及其与患者预后相关性的研究

目的 探究蛋白磷酸酶2A癌性抑制因子(CIP2A)和CD44v6在尖锐湿疣(CA)患者皮损组织中的表达,分析二者与CA患者HPV基因型分布及其预后的相关性。方法 选取本院2020年4月至2023年4月收治的CA患者100例作为研究组,根据预后情况将患者分为预后良好组和不良组,收集术中保留的皮损组织;另选取本院同期行外阴整形或包皮环切术者100例作为对照组,收集切下的外阴组织或正常包皮组织。实时荧光定量PCR法检测组织标本中的CIP2A、CD44v6 mRNA表达水平。比较研究组与对照组、不同HPV分型组、预后良好组与预后不良组中CIP2A、CD44v6 mRNA的表达水平,分析CA组织中CIP2A、CD44v6的表达与临床特征的关系,采用多因素COX回归分析CA患者预后的影响因素;绘制ROC曲线分析CIP2A、CD44v6对CA患者预后不良的预测价值。结果 研究组CIP2A、CD44v6 mRNA的表达水平显著高于对照组(CIP2A:2.19±0.40 vs 1.01±0.24,t=25.24,P<0.05;CD44v6:1.75±0.33 vs 1.02±0.22,t=18.41,P<0.05)。低危组、高危组和混合组CIP2A、CD44v6 mRNA表达水平均依次升高(均P<0.05)。预后不良组CIP2A、CD44v6 mRNA表达水平显著高于预后良好组(CIP2A:3.58±0.62 vs 1.62±0.31,t=21.05,P<0.05;CD44v6:2.57±0.49 vs 1.42±0.26,t=15.26,P<0.05)。CIP2A、CD44v6的表达与疣体数目和直径有关(均P<0.05)。多因素COX回归分析结果显示,CIP2A、CD44v6的表达以及疣体数目、直径是影响CA患者预后的危险因素(P<0.05)。ROC曲线显示,CIP2A预测CA患者预后不良的AUC为0.866,CD44v6的AUC为0.860,二者联合的AUC为0.928,二者联合优于各自单独预测(Z_(联合vs CIP2A)=2.72、Z_(联合vs CD44v6)=2.73,P均<0.05)。结论 CA患者组织中CIP2A、CD44v6的表达水平显著升高,二者均与HPV基因型分布及其预后有关。CIP2A和CD44v6联合可提高对CA患者预后预测的准确性。

cyclin E、p53、CD44s、CD44v6与早期乳腺癌的相关性及预后预测分析

目的分析肿瘤组织的细胞周期素E(cyclin E)和p53、CD44s、CD44v6蛋白与早期乳腺癌的相关性及预后预测价值。方法选取2018年7月—2020年7月喀什地区第二人民医院收治的80例临床分期为Ⅰ~Ⅱ期的早期乳腺癌患者进行回顾性分析,将其分为恶性组;另选取同期喀什地区第二人民医院收治的80例通过病理学检验确诊为良性乳腺肿瘤患者,将其分为良性组。分别对两组患者留存的肿瘤组织进行免疫组化检测,检测cyclin E、p53、CD44s、CD44v6表达,并对比上述指标的阳性率,应用Spearman相关分析方法分析cyclin E、p53、CD44s、CD44v6与早期乳腺癌的相关性。所有患者均采取手术治疗,随后对80例早期乳腺癌患者进行3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=25)和预后良好组(n=55),对比两组患者一般临床特征及cyclin E、p53、CD44s、CD44v6阳性率,并应用Logistic回归分析cyclin E、p53、CD44s、CD44v6对早期乳腺癌预后的预测价值。结果恶性组患者cyclin E、p53、CD44s、CD44v6阳性率分别为42.50%、61.25%、77.50%、81.25%,明显高于良性组1.25%、5.00%、10.00%、12.50%(P<0.05);Spearman相关分析结果显示:cyclin E、p53、CD44s、CD44v6与早期乳腺癌呈正相关(P<0.05);预后良好组与预后不良组患者绝经情况、年龄、病理类型、治疗方式、三阴性乳腺癌、肿瘤大小、组织分化程度对比,差异无统计学意义(P>0.05),预后良好组与预后不良组患者临床分期、cyclin E、p53、CD44s、CD44v6阳性例数对比,差异有统计学意义(P<0.05);Logistic回归分析结果表明:cyclin E、p53、CD44s、CD44v6阳性表达为影响早期乳腺癌预后的独立影响因素(P<0.05)。结论cyclin E、p53、CD44s、CD44v6表达水平与乳腺癌的发生、发展具有明显关系,且上述指标呈阳性表达为早期乳腺癌预后不良的独立预测因素。

Expression of heparanase gene,CD44v6,MMP-7 and nm23 protein and their relationship with the invasion and metastasis of gastric carcinomas

AIM:To explore the expression of heparanase gene, CD44v6,MMP-7 and nm23 proteins in human gastric carcinoma as well as their relationship with the dinicopathological factors.METHODS: Reverse transcription polymerase chain reaction (RT-PCR) was used to measure the expressions of heparanase mRNA in 43 human gastric carcinomas and 10 adjacent normal gastric tissues. Streptavidin-peroxidase (S-P) two step method was used to measure the immunohistochemical expression of CD44v6,MMP-7 and nm23protein in 43 human gastric carcinomas.RESULTS:The expression of heparanase gene was positivein 29 cases of gastric cancer with a positive rate of 67.4%,which was significantly higher than those in adjacent normal gastric tissues (P<0.05).The heparanase mRNA expression was significantly related to advanced stage of disease, serosal infitration,lymph node metastasis and size of tumors (P<0.05),but not related to tumor location, gross and histological types of the cancer, peritoneal dissemination and liver metastasis(P>0.05).The positive rate of CD44v6,nm23 and MMP-7 proteins was 76.7%,37.2% and 60.5%,respectively.The CD44v6 protein expression was significantly related to serosal infiltration,lymph node metastasis and TNM stage of disease(P<0.05).The nm23 protein expression was significantly related to the tumor gross appearance,lymph node and peritoneal metastasis (P<0.05).The MMP-7 protein expression was significantly related to serosal infiltration and TNM stage of disease (P<0.05).In an attempt to measure the association between these agents, we found that the expression of heparanase mRNA had significantly negative correlation with the expression of CD44v6 and MMP-7 protein (P<0.05), the expression of MMP-7 protein had significantly positive correlation with the expression of CD44v6 protein (r=0.568, P<0.05), the expression of MMP-7 protein had no correlation with the expression of nm23 protein (P>0.05),and the expression of nm23 protein had no correlation with the expression of CD44v6 protein (P>0.05).CONCLUSION: Despite their different mechanisms of action, heparanase, CD44v6 and nm23 may play important roles in the invasive infiltration and lymph node metastasis in gastric carcinomas. Instead of metastatic spreading, MMP-7 may be just related to the invasion of gastric carcinomas.However, co-detection of these factors may be important to predict metastatic spreading in such patients.

Expression and correlation of CD44v6, vascular endothelial growth factor, matrix metalloproteinase-2, and matrix metalloproteinase-9 in Krukenberg tumor

AIM： To explore the expression and correlation of CD44v6, vascular endothelial growth factor （VEGF）, matrix metalloproteinase （MMP）-2 and matrix metalloproteinase （MMP）-9 in Krukenberg and primary epithelial ovarian carcinoma. METHODS： The expressions of CD44v6, VEGF, MMP-2 and MMP-9 were detected by immunohistochemical method in 20 cases of normal ovarian tissues, 38 cases of Krukenberg tumor and 45 cases of primary epithelial ovarian carcinoma. RESULTS： The expression of CD44v6 （primary epithelial ovarian carcinoma tissue vs normal ovarian tissue： χ^2= 4.516, P= 0.034; Krukenberg tumor tissue vsnormal ovarian tissue： χ^2 = 19.537, P = 0.001） and VEGF （primary epithelial ovarian carcinoma tissue vs normal ovarian tissue： P = 0.026; Krukenberg tumor tissue vs normal ovarian tissue： χ^2 = 22.895, P = 0.001） was significantly higher in primary epithelial ovarian carcinoma tissue and Krukenberg tumor tissue than in normal ovarian tissue. The positive expression rate of MMP-2 and MMP-9 was 0% in the normal ovarian tissue. The positive expression rate of CD44v6 （ χ^2= 10.398, P= 0.001）, VEGF （ χ^2= 13.149, P = 0.001）, MMP-2 （ χ^2 = 33.668, P = 0.001） and MMP-9 （ χ^2= 38.839, P = 0.001） was remarkably higher in Krukenberg tumor than in primary epithelial ovarian carcinoma. The correlation of CD44v6, VEGF, MMP-2, and MMP-9 was observed in primary epithelial ovarian carcinoma and Krukenberg tumor. CONCLUSION： CD44v6, VEGF, MMP-2, and MMP-9 are involved in ovarian carcinoma, gastric cancer and Krukenberg tumor. Detection of CD44v6, VEGF, MMP-2 and MMP-9 may contribute to the diagnosis of ovarian carcinoma, gastric cancer, and Krukenberg tumor.

Correlation of matrix metalloproteinase－2, －9, tissue inhibitor－1 of matrix metalloproteinase and CD44 variant 6 in head and neck cancer metastasis

This study aimed to explore the molecular mechanism in tumor invasion and metastasis. The expression of matrix metalloproteinase 2, 9 (MMP 2, MMP 9), tissue inhibitor 1 of matrix metalloproteinase (TIMP 1), cell adhesion molecule 44 variant 6 (CD44v6), HER2/neu and p53 was investigated in 154 patients with head and neck squamous cell carcinoma (SCC) by ABC and ImmunoMax immunohistochemical method. Their clinical relevance and correlation were analysed. The expression of MMP 2, MMP 9, TIMP 1, CD44v6, HER2/neu and p53 was found in cancer cells in 87.01%, 85.71%, 68.18%, 98.05%, 55.19% and 50.65% cases respectively. Linear regression and correlation analysis revealed that there was close positive relationship ( P <0.05) between the expression of MMP 2 and MMP 9, TIMP 1 and CD44v6, HER2/neu and MMP 9, MMP 2 and p53. Up regulation of MMP 2 was accompanied by advanced T stage ( P <0.01) . There was also a trend of MMP 2 expression being related with tumor metastasis. Increased expression of HER2/neu was found in patients with tumor recurrence( P <0.05). The expression of TIMP 1 was higher in laryngeal cancer than that in pharyngeal cancer, and higher in keratinizing and non keratinizing SCC than that in basaloid SCC( P <0.05). These findings suggested that MMP 2 and MMP 9, HER2/neu and MMP 9, MMP 2 and p53 had a coordinate function in aggression of tumor; that MMP 2 had a more important function than MMP 9 in tumor invasion and metastasis; and that HER2/neu might serve as a biomarker for poor prognosis in HNSCC.

PEI-PEG as a siRNA Genetic Vector Demonstrating Interference in the Expression of CD44v6 Protein in Gastric Cancer Cells

OBJECTIVE To investigate the effect of polyethylene imine glycol （PEI-PEG）/siRNA nanocomposites in the in vitro transfection of human gastric cancer SGC7901 cell lines and the down-regulation of gene expression of the adherence factor CD44v6. METHODS PEI-PEG/siRNA nanoparticles, in different N/P ratios, were synthesized and transfected into gastric cancer cells. Lipo2000/siRNA was used in the control group. The transfection efficiencies were observed under fluorescence microscope. The cytotoxicity of the nanoparticles was measured using the MTT assay （mononuclear cell direct cytotoxicity assay）, and the down-regulation effect of siRNA on CD44v6 gene was evaluated by Western blot. Based on the different N/P ratios, PEI-PEG/siRNA composites were synthesized and transfected into gastric cancer cells. Lipo2000/siRNA was used in the controls. The transfection efficiency was observed under fluorescence microscope. The cytotoxicity of the nanoparticles was measured using the MTT assay and the down-regulation effect of siRNA on CD44v6 gene was evaluated by Western blot. RESULTS After transfection, the transfection efficiency of the PEI-PEG/siRNA nanocomposites increased incrementally in N/P ratio value. The transfection efficiency improved with an increase in N/P ratio. When the N/P value was 15, fluorescence became more intense in the PEI-PEG/siRNA group than in the Lipo2000/siRNA group. At the same time, cell viability was （80.4 ± 5.6）% in the MTT reduction assay, which was similar to that in the Lipo2000/siRNA group. The results of Western blot analysis showed that the expression level of CD44v6 protein decreased to （59.7 ± 3.0）% after siRNA-CD44v6 was inhibited. CONCLUSION PEI-PEG could effectively form the nanocomposite in combination with siRNA, be transfected into the SGC7901 gastric cancer cell lines and inhibit CD44v6 protein expression. Moreover, as a genetic carrier, PEI-PEG copolymer has greater advantages, including high transfection e. ciency, less cytotoxicity and an easily alterable vector structure.

小檗碱对人胃癌细胞增殖、细胞周期及CD44V6表达的影响

目的 :研究小檗碱对人胃癌MGC 80 3细胞增殖、细胞周期及CD4 4V6分子表达的影响 ,探讨其抗肿瘤及抗肿瘤转移作用机制。方法 :MTT法检测小檗碱对人胃癌MGC 80 3细胞体外增殖作用。激光共聚焦显微镜观察用药后细胞形态的改变并用流式细胞仪检测细胞周期的变化。应用免疫组化和流式细胞术技术检测药物对细胞表面CD4 4V6表达的影响。结果 :小檗碱对MGC 80 3细胞有显著抑制作用 ,在 10、2 0、4 0 μg ml浓度下 ,其抑制率分别为 36 2 %、4 9 7%和 5 9 3% ,有明显剂量依赖关系。激光共聚焦显微镜下细胞核固缩 ,并可见凋亡小体。药物可将细胞阻滞在G0 G1期 ,并使细胞表面的CD4 4V6表达降低。结论 :小檗碱可通过诱导MGC 80 3细胞凋亡并将细胞阻滞在G0 G1期 ,发挥抑制瘤细胞的体外增殖作用 ;小檗碱可降低MGC 80 3细胞株CD4 4V6的表达 。

CD44 v6基因编码蛋白表达与胃癌转移和预后的关系

目的观察转移相关粘附分子拼接变异体ＣＤ４４ｖ６在人胃癌组织中的不同表达，探讨ＣＤ４４ｖ６与胃癌病理生物学行为之间的关系，评价ＣＤ４４ｖ６可否作为一个新的客观预测胃癌细胞转移潜能和胃癌患者预后的可靠生物学指标．方法采用鼠抗人ＣＤ４４ｖ６特异性ｍＡｂ，对４５例早期胃癌，２２例中期胃癌和１０３例晚期胃癌手术切除标本之胃原发灶与转移灶进行了ＡＢＣ免疫组化检测．应用χ２检验和Ｌｏｇｒａｎｋ检验方法对结果做统计学分析．结果ＣＤ４４ｖ６在晚期胃癌中的检出率为４６６％（４８／１０３），明显高于早期胃癌（２６７％，１２／４５）和中期胃癌（２７３％，６／２２，Ｐ＜００１）．伴淋巴结转移和伴肝脏转移之胃癌ＣＤ４４ｖ６检出率分别为４９％（５０／１０２）和７１４％（５／７），明显高于不伴转移的胃癌（１８６％，１１／５９，Ｐ＜００１）．肠型胃癌中ＣＤ４４ｖ６检出率为４４９％（４８／１０７），明显高于弥漫型胃癌（２７４％，１７／６２，Ｐ＜００５）．但是，ＣＤ４４ｖ６的表达与胃癌原发灶大小和组织学类型及分化程度未见明显相关．ＣＤ４４ｖ６阳性胃癌患者的术后生存期显著短于ＣＤ４４ｖ６阴性胃癌的患者（Ｐ＝００００２）．结论?

检测恶性腹水中VEGF、CD44v6和MMP-2、MMP-9的临床意义

背景及目的:恶性腹水中找到癌细胞有确诊意义,但阳性率很低。因此从腹水中寻找理想的癌性标记物已成为当前研究的主要课题。本课题拟通过检测腹水中血管内皮生长因子(vascularendothelialgrowthfactor,VEGF)、细胞粘附分子CD44v6、基质金属蛋白酶-2,-9(matrixmetalloproteinase-2,-9,MMP-2,-9)的水平并进行分析,以期为临床腹水诊治提供科学依据。方法:收集肝硬化腹水36例、结核性腹水8例、恶性腹水23例。采用ELISA法检测VEGF、CD44v6含量,用明胶酶谱法检测MMP-2,-9活性。结果:恶性腹水中VEGF、CD44v6含量分别为(640.74±264.81)ng/L、(89.22±38.20)μg/L,明显高于肝硬化腹水犤(67.05±51.91)ng/L,(44.79±18.02)μg/L犦和结核性腹水犤(88.25±24.12)ng/L,(50.25±12.57)μg/L犦(P<0.01)。肝硬化腹水、结核性腹水不能检出MMP-2,-9,而恶性腹水MMP-2检出率为87.0%,MMP-9检出率为78.3%。结论:恶性腹水中VEGF、CD44v6水平显著升高而MMP-2,-9阳性。联合检测腹水中VEGF、CD44v6、MMP-2,-9的水平可作为临床良、恶性腹水的鉴别诊断依据之一。

CD44_s和CD44v6的mRNA在胃癌中的表达及其临床意义

目的 探讨CD4 4smRNA和CD4 4v6mRNA在胃癌中的表达及其临床意义。方法 应用巢式RT PCR检测 16例远隔癌灶部位“正常”胃黏膜及 5 8例胃癌新鲜组织中CD4 4smRNA和CD4 4v6mRNA表达水平。结果 CD4 4smRNA在胃癌组织和远隔癌灶部位“正常”胃黏膜中的表达无差异 ,和胃癌的各临床病理学指标无关 (P >0 .0 5 )。CD4 4v6mRNA在胃癌组织中的表达高于远隔癌灶部位“正常”胃黏膜 (P <0 .0 5 ) ,与Borrmann分型 (P <0 .0 5 )、脉管侵犯 (P <0 .0 1)、浆膜浸润 (P <0 .0 1)和淋巴结转移 (P <0 .0 1)有关。结论 CD4 4smRNA和胃癌的发生发展无关 ,CD4 4v6与胃癌的浸润及转移相关。

CD44v6、bcl-2和VEGF在子宫内膜腺癌中的表达及其意义

背景与目的:子宫内膜癌的发病机理至今尚未完全阐明,本研究拟探讨CD44v6、bcl-2、血管内皮生长因子(vascularendothelialgrowthfactor,VEGF)在子宫内膜腺癌发生、发展中的作用。方法:运用免疫组化技术SP法检测CD44v6、bcl-2、VEGF在55例子宫内膜腺癌及10例正常增生期子宫内膜、10例子宫内膜单纯性增生和10例不典型增生组织中的表达情况。结果:(1)在正常增生期子宫内膜、单纯性增生、不典型增生、子宫内膜腺癌中CD44v6及VEGF的阳性表达率分别为10.00%、40.00%、60.00%、78.18%和0%、0%、10.00%、83.84%,均有显著性差异(P<0.001,P<0.001),而bcl-2表达无显著差异;(2)55例子宫内膜腺癌组织中,CD44v6表达强度与手术分期及淋巴结有无转移呈负相关(P<0.05,P<0.01)bcl-2的表达强度在子宫内膜腺癌中与分化程度显著相关VEGF的表达强度与手术分期、肌层浸润、淋巴结有无转移显著相关;(3)bcl-2与VEGF、CD44v6在子宫内膜腺癌中有协同表达(P<0.05,P<0.05);(4)单因素生存分析CD44v及bcl-2与子宫内膜腺癌患者预后有关(P<0.01,P<0.05)多因素Cox模型分析筛选出患者的年龄、手术分期和CD44v是独立的预后影响因素,CD44v6阴性表达者的生存时间较阳性表达者短。结论:CD44v6、VEGF及bcl-2在子宫内膜腺癌的发生、发展过程中起不?

乳腺癌CD44v6和Survivin 的表达与临床预后的相关性研究

目的: 研究CD44v6和Survivin的表达与乳腺癌临床病理特征和生存率的关系以及在乳腺癌和良性乳腺疾病的表达差异。方法:用免疫组化法检测64例乳腺癌标本和12例良性乳腺(对照组)标本CD44v6和Survivin表达。将乳腺癌病例按表达分成A组(双阳性组)、B组(单阳性组)和C组(双阴性组),随访生存情况。结果:乳腺癌组和对照组中CD44v6阳性率分别为57.81%和25.00%(P=0.037),Survivin阳性率分别为73.43%和8.33%(P<0.001)。乳腺癌组织中CD44v6和Survivin表达均高于对照组。CD44v6和Survivin的表达与年龄、肿瘤大小、组织学分级和分类均无明显相关(P>0.05),但与临床分期和淋巴结转移明显相关(P<0.05)。A、B、C组的平均生存期分别为(84.07±6.69)、(103.89±6.77)、(115.50±7.42)个月。64例乳腺癌患者的平均生存期为(97.43±4.59)个月。A、B、C组的5年总生存率分别为74.19%、90.91%、100.00%;10年总生存率分别为35.48%、59.09%和72.73%(P=0.043)。结论:CD44v6和Survivin表达分布存在组织特异性。两者过量表达与年龄、肿瘤大小、组织学分级及组织学分类之间均无统计学差异,但与临床分期和淋巴结转移存在显著性差异。两者均阳性表达患者5年和10年生存率最低。CD44v6和Sur-vivin均是乳腺癌的预后因素,有助于指导治疗和预测预后。

乳腺导管内乳头状瘤及其癌变组织CD44v6蛋白表达的研究

背景与目的:CD44v6是乳腺上皮恶性转化中的一个重要成分,在乳腺良恶性病变中有不同的表达,但其在良恶性病变的鉴别诊断中的价值并没有得到很好的研究。本研究目的是检测CD44v6在乳腺导管内乳头状瘤及导管内乳头状瘤癌变组织中的表达,探讨CD44v6在乳腺导管内乳头状瘤诊断及鉴别诊断中的作用。方法:对49例导管内乳头状瘤、12例导管内乳头状瘤癌变、15例导管内癌、15例浸润性导管癌及20例正常乳腺组织的石蜡切片进行免疫组织化学染色。结果:在正常组织、导管内乳头状瘤、乳头状瘤癌变、导管内癌、浸润性导管癌中,肌上皮细胞(basalepithelialcell)的CD44v6蛋白表达阳性(++/+++)率分别为95.00%、85.72%、66.66%、66.66%、0%,导管内乳头状瘤与乳头状瘤癌变之间无统计学差异(P>0.05);而上皮细胞(luminalepithelialcell)的CD44v6蛋白表达阳性(++/+++)率分别为5.00%、20.41%、83.34%、93.33%、100%,导管内乳头状瘤与乳头状瘤癌变之间有统计学差异(P<0.01)。结论:通过免疫组化检测CD44v6蛋白表达对诊断导管内乳头状瘤是否癌变具有重要参考价值。

胃癌组织及区域淋巴结MUC1、CD44v6、nm23表达与胃癌侵袭转移及预后的关系

背景与目的:研究证实胃癌浸润深度和淋巴结转移是多基因及其蛋白表达产物协调作用的结果,寻找与胃癌转移相关的分子生物学标志物有助于胃癌的研究。本实验旨在探讨胃癌组织及区域淋巴结中MUC1、CD44v6、nm23表达与胃癌侵袭转移及预后的关系。方法:采用SP免疫组织化学方法对110例胃癌组织及613枚区域淋巴结中的MUC1、CD44v6、nm23基因蛋白的表达进行检测。结果:①胃癌组织中的MUC1蛋白阳性表达在低分化癌组、浸润型组、T3+T4组、淋巴结转移组、Ⅲ～Ⅳ期组、生存期<5年组分别为84.6%、88.1%、87.3%、91.7%、94.4%、95.5%,CD44v6分别为79.5%、74.6%、79.4%、81.7%、87.0%、87.9%,nm23分别为38.5%、32.2%、30.2%、25.0%、25.9%、18.2%。MUC1和CD44v6表达低分化癌组显著高于高、中分化癌组(78.9%vs57.7%),浸润型组高于局限型组(72.6%vs54.9%),T3+T4组高于T2组(72.3%vs46.8%),淋巴结转移组高于无淋巴结转移组(68.0%vs46.0%),TNMⅢ～Ⅳ期组高于Ⅰ～Ⅱ期组(67.9%vs44.6%),生存期<5年组高于≥5年组(59.1%vs31.8%),各组间差异均具有显著性(P<0.01或P<0.05)。而nm23除分化程度、Borrmann分型不同的两组之间差异无显著性外,T3+T4组低于T2组(51.1%),有淋巴结转移组低于无淋巴结转移组(56.0%)。

CD44v6在乳腺浸润性导管癌组织中的表达及其临床意义

背景与目的:近年研究表明,CD44v6与乳腺癌的发生、侵袭和转移密切相关,但其与乳腺癌预后关系的报道结果并不一致。本研究探讨CD44v6在乳腺癌和乳腺癌旁非癌组织中的表达及其与乳腺癌临床病理因素的关系以及对乳腺癌患者预后的预测意义。方法:采用免疫组织化学SP法检测84例乳腺浸润性导管癌和20例癌旁非癌乳腺组织中CD44v6的表达。采用SPSS10.0软件统计分析CD44v6表达与各病理因素的关系,采用Cox比例风险模型分析影响预后的因素。结果:CD44v6在乳腺浸润性导管癌上皮细胞的表达(78.6%)明显高于癌旁非癌乳腺组织上皮(5.0%),差异有显著性(P<0.05);CD44v6的表达与乳腺癌的TNM分期、肿瘤大小、淋巴结转移状况密切相关;中位随访时间为60个月,CD44v6阴性组的总体生存情况优于CD44v6阳性组,有显著性差异(P<0.05),而且随着CD44v6表达的增强,总体生存曲线有逐渐下降的趋势。Cox比例风险模型多因素的预后分析结果显示,ER、TNM分期、CD44v6均是影响预后的独立因素(P<0.05)。结论:CD44v6在乳腺癌组织中的表达明显升高;CD44v6的表达与乳腺癌患者的TNM分期、肿瘤大小、淋巴结转移呈正相关;CD44v6表达升高可作为预测乳腺癌预后的独立指标之一。

CD_(44V6)在胃癌中表达及其临床意义

目的：探讨ＣＤ４４Ｖ６与胃癌发生及胃癌生物学行为的关系。方法：应用免疫组化Ｓ－Ｐ方法研究１０例胃粘膜肠化及４６例胃癌的ＣＤ４４Ｖ６表达。结果：胃粘膜肠化及胃癌阳性率分别为１０％和６３％，淋巴结转移组阳性率（７５％）明显高于非转移组（４５％，Ｐ＜０．０５），且ＣＤ４４Ｖ６表达与Ｌａｕｒｅｎ分型相关。结论：ＣＤ４４Ｖ６分子参与肿瘤发生。

OPN、CD44v6及MMP-2在肺鳞癌、腺癌中的表达及其临床意义

背景与目的近年来关于细胞表面黏附分子(CD44)、基质金属蛋白酶(MMP)与肿瘤关系的研究比较多,而对骨桥蛋白(OPN)的研究却很少。本研究的目的是通过研究OPN、CD44v6及MMP-2在肺鳞癌、腺癌中的表达水平,了解它们与肺鳞癌、腺癌生长、浸润及转移的关系。方法采用免疫组化方法,对69例肺鳞癌、腺癌患者手术标本OPN、CD44v6和MMP-2进行检测。结果OPN、CD44v6和MMP-2表达率与患者组织学类型、TNM分期及淋巴结转移有密切关系(P<0.05),与细胞分化程度则无明显关系(P>0.05)。OPN与CD44v6、MMP-2的表达均呈正相关,CD44v6与MMP-2表达之间无相关性。结论OPN、CD44v6和MMP-2的表达同肺癌病理类型、分期、淋巴结转移有密切关系,可能作为临床评估肺鳞癌、腺癌进展及预测肿瘤转移潜能的指标。

奥沙利铂对二甲肼诱导的结肠癌大鼠CD44V6、VEGF、survivin、Caspase-3和Caspase-7的影响

目的研究奥沙利铂对结肠癌大鼠治疗的作用机制。方法将42只SD大鼠均颈背部皮下注射二甲肼,每周注射1次,连续注射5周。随机抽取2只大鼠切取直肠进行HE染色,病理学观察,确定结肠癌大鼠模型建立。将40只结肠癌大鼠随机分为模型组、奥沙利铂高、中、低剂量组,每组10只。另设正常组SD大鼠10只。奥沙利铂高剂量组(27.2 mg/kg)、中剂量组(13.6 mg/kg)、低剂量组(6.8 mg/kg),给予1 ml 5%的葡萄糖注射液溶解,尾静脉注射给药,每3周给药一次,连续给药12周。正常组与模型组给予1ml 5%的葡萄糖注射液代替。末次给药48 h后,通过颈脱位法处死大鼠。显微镜观察结肠组织中异变腺窝病灶(ACF)的个数。通过酶联免疫吸附(ELISA)法检测结肠癌大鼠血清中CD44V6和VEGF的含量变化。免疫蛋白印记(Western blot)法检测结肠癌组织中survivin、Caspase-3和Caspase-7的蛋白水平。结果与模型组比较,奥沙利铂给药组结肠组织中ACF的数量明显减少。与正常对照组比较,模型组血清中CD44V6和VEGF的含量显著增加(P<0.05)。与模型组相比,奥沙利铂高剂量组、中剂量组血清中CD44V6和VEGF的含量下降。其中奥沙利铂高剂量的效果最好,差异有统计学意义(P<0.05)。与正常组相比,模型组、奥沙利铂给药组结肠癌组织中的survivin、Caspase-3和Caspase-7的蛋白水平均上升。与模型组相比,奥沙利铂给药组结肠癌组织中的survivin的蛋白水平降低;Caspase-3和Caspase-7的蛋白水平升高,差异有统计学意义(P<0.05)。结论奥沙利铂通过调控CD44V6、VEGF、survivin、Caspase-3和Caspase-7的水平,减少肿瘤血管的生成与转移、调节结肠癌组织中的细胞凋亡,从而达到治疗的目的。

胃癌患者sCD44v6表达与中医证型的关系及胃泰胶囊对其影响

目的探讨胃癌患者血清可溶性黏附分子CD4 4v6 (sCD4 4v6 )术前水平与不同的组织学参数之间及与中医证型之间的关系 ,同时观察胃泰胶囊结合化疗对sCD4 4v6表达的影响。方法全部入组病例在术前行中医证型分组及治疗前后行sCD4 4v6检测 ;对照组 (30例 )在术后 3～ 4周均接受 3～ 4个周期静脉化疗。试验组 (32例 )术后在对照组治疗基础上予以胃泰胶囊口服 ,连服 3个月。结果 (1)血清sCD4 4v6水平与胃癌分化程度、浸润深度及淋巴结转移呈显著正相关。 (2 )sCD4 4v6水平血瘀证最高 ,和脾虚证、湿热证比较差异有显著性。 (3)结束治疗后试验组血清sCD4 4v6含量明显低于对照组。结论 (1)血清sCD4 4v6可作为胃癌的发展、预后指标 ,同时也可以作为抗胃癌转移的治疗靶标。 (2 )血清sCD4 4v6和血瘀证、脾虚证存在着一定的相关性。 (3)胃泰胶囊配合化疗能够进一步抑制胃癌患者血清sCD4 4v6的表达。