The implications of Survivin, CyclinD1, p21 WAF1, Caspase-3 in the development, progression and prognosis in cervical cancer were investigated. By using immunohistochemical SP method, the expression of Survivin, Cy...The implications of Survivin, CyclinD1, p21 WAF1, Caspase-3 in the development, progression and prognosis in cervical cancer were investigated. By using immunohistochemical SP method, the expression of Survivin, CyclinD1, p21 WAF1, Caspase-3 was detected in 41 cases of cervical cancer, 17 cases of cervical intraepithelial neoplasia (CIN) and 10 cases of normal tissues, and their relation with pathological grade, clinical stage, metastasis and survival time was analyzed. The results showed that the positive expression rate of Survivin, CyclinD1 in cervical cancer was significantly higher than in CIN group and normal control group (P<0.05). The median survival time in the patients with cervical cancer positive for Survivin and CyclinD1 was significantly shorter than in those with negative expression (P<0.05). The expression of both Survivin and CyclinD1 was not related with tumor grade, clinical stage and metastasis (P>0.05). The positive expression rate of p21 WAF1, Caspase-3 in cervical cancer was significantly lower than in CIN group and normal control group (P<0.05), and had a close relation with tumor grade (P<0.05). The expression of Survivin in cervical cancer in cervical cancer was negatively associated with that of Caspase-3 (P<0.01), but positively with that of CyclinD1 (P<0.01). Cox Multivariate analysis revealed that Survivin was the independent prognostic indicator influencing the survival time of the patients with cervical cancer (P<0.05). It was suggested that the high expression of Survivin or CyclinD1, and low expression of p21 WAF1 or Caspase-3 was closely correlated with the development of cervical cancer. Survivin and CyclinD1 could be used as a useful indicator to predict the prognosis of cervical cancer.展开更多
目的:探讨胰腺癌中p21W A F1、cyclinD1和CD K4的表达意义及其相互关系。方法:应用免疫组织化学二步法检测p21W A F1、cyclinD1和CD K4在48例胰腺癌和14例慢性胰腺炎中的表达。结果:胰腺癌组织中p21W A F1、cyclinD1、CD K4的阳性表达...目的:探讨胰腺癌中p21W A F1、cyclinD1和CD K4的表达意义及其相互关系。方法:应用免疫组织化学二步法检测p21W A F1、cyclinD1和CD K4在48例胰腺癌和14例慢性胰腺炎中的表达。结果:胰腺癌组织中p21W A F1、cyclinD1、CD K4的阳性表达率分别是52.08%(25/48)、70.85%(34/48)、62.50%(30/48),同慢性胰腺炎组比较p21W A F1的表达明显降低(P<0.01),而cyclinD1和CD K4的表达明显升高(P<0.01)。高分化、无淋巴结转移、临床分期Ⅰ、Ⅱ期的胰腺癌组织中p21W A F1的阳性表达率明显高于低分化、有淋巴结转移、临床分期Ⅲ、Ⅳ期的胰腺癌(P<0.05);而cyclinD1和CD K4则相反(P<0.05)。p21W AF1的表达和cyclinD1、CDK4的表达呈明显的负相关(相关系数分别为r=-0.340,P<0.05和r=-0.571,P<0.01);cyclinD1和CDK4的表达则呈明显的正相关(r=0.450,P<0.01)。结论:p21W A F1的缺失表达和cyclinD1、CD K4的过表达在胰腺癌的发生、发展过程中起重要的协同作用。三种蛋白质主要以p21W AF1/cyclinD1/CDK4通路的方式作用于细胞的转化,参与肿瘤的形成。展开更多
文摘The implications of Survivin, CyclinD1, p21 WAF1, Caspase-3 in the development, progression and prognosis in cervical cancer were investigated. By using immunohistochemical SP method, the expression of Survivin, CyclinD1, p21 WAF1, Caspase-3 was detected in 41 cases of cervical cancer, 17 cases of cervical intraepithelial neoplasia (CIN) and 10 cases of normal tissues, and their relation with pathological grade, clinical stage, metastasis and survival time was analyzed. The results showed that the positive expression rate of Survivin, CyclinD1 in cervical cancer was significantly higher than in CIN group and normal control group (P<0.05). The median survival time in the patients with cervical cancer positive for Survivin and CyclinD1 was significantly shorter than in those with negative expression (P<0.05). The expression of both Survivin and CyclinD1 was not related with tumor grade, clinical stage and metastasis (P>0.05). The positive expression rate of p21 WAF1, Caspase-3 in cervical cancer was significantly lower than in CIN group and normal control group (P<0.05), and had a close relation with tumor grade (P<0.05). The expression of Survivin in cervical cancer in cervical cancer was negatively associated with that of Caspase-3 (P<0.01), but positively with that of CyclinD1 (P<0.01). Cox Multivariate analysis revealed that Survivin was the independent prognostic indicator influencing the survival time of the patients with cervical cancer (P<0.05). It was suggested that the high expression of Survivin or CyclinD1, and low expression of p21 WAF1 or Caspase-3 was closely correlated with the development of cervical cancer. Survivin and CyclinD1 could be used as a useful indicator to predict the prognosis of cervical cancer.
文摘目的:探索肠瘤康基于p16/CyclinD1/CDK4/Rb通路对人结肠癌HT29细胞周期的作用及机制。方法:取对数生长期的人结肠癌HT29细胞,待细胞完全贴壁后加入梯度浓度的肠炎原溶液,分为对照组(肠瘤康0μg/m L)、肠瘤康高(100μg/m L)、中(10μg/m L)、低(0.0μg/m L)剂量组及5-氟尿嘧啶组(5氟尿嘧啶4μg/m L)通过MTT法检测肠瘤康对HT29细胞的增殖抑制作用,流式细胞仪检测肠瘤康对HT29细胞周期的影响,实时定量PCR法检测细胞内p16、CyclinD1、CDK4及Rb基因表达水平。结果:肠瘤康干预后,HT29细胞的增殖抑制率显著性降低,流式细胞术检测发现G1期的百分比显著增加。肠瘤康可以剂量依赖性的抑制结肠癌HT29细胞增殖,促进p16 m RNA表达量,抑制CyclinD1、CDK4、Rb m RNA的表达量。结论:肠瘤康能抑制HT29细胞的增殖,诱导细胞在G1期阻滞,其诱导作用与其调控p16/CyclinD1/CDK4/Rb通路上相关因子表达有关。
文摘目的:探讨胰腺癌中p21W A F1、cyclinD1和CD K4的表达意义及其相互关系。方法:应用免疫组织化学二步法检测p21W A F1、cyclinD1和CD K4在48例胰腺癌和14例慢性胰腺炎中的表达。结果:胰腺癌组织中p21W A F1、cyclinD1、CD K4的阳性表达率分别是52.08%(25/48)、70.85%(34/48)、62.50%(30/48),同慢性胰腺炎组比较p21W A F1的表达明显降低(P<0.01),而cyclinD1和CD K4的表达明显升高(P<0.01)。高分化、无淋巴结转移、临床分期Ⅰ、Ⅱ期的胰腺癌组织中p21W A F1的阳性表达率明显高于低分化、有淋巴结转移、临床分期Ⅲ、Ⅳ期的胰腺癌(P<0.05);而cyclinD1和CD K4则相反(P<0.05)。p21W AF1的表达和cyclinD1、CDK4的表达呈明显的负相关(相关系数分别为r=-0.340,P<0.05和r=-0.571,P<0.01);cyclinD1和CDK4的表达则呈明显的正相关(r=0.450,P<0.01)。结论:p21W A F1的缺失表达和cyclinD1、CD K4的过表达在胰腺癌的发生、发展过程中起重要的协同作用。三种蛋白质主要以p21W AF1/cyclinD1/CDK4通路的方式作用于细胞的转化,参与肿瘤的形成。
