Both proliferating cell nuclear antigen and P27 protein are important factors to regulate cell cycle. While, the combination of them can provide exactly objective markers to evaluate prognosis of patients with brain g...Both proliferating cell nuclear antigen and P27 protein are important factors to regulate cell cycle. While, the combination of them can provide exactly objective markers to evaluate prognosis of patients with brain glioma needs to be further studied based on pathological level. OBJECTIVE: To observe the expressions of proliferating cell nuclear antigen and P27 protein in both injured and normal brain glioma tissues and analyze the effect of them on onset and development of brain glioma. DESIGN: Case contrast observation. SETTING: Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University. PARTICIPANTS: A total of 63 patients with brain glioma were selected from Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University from July 1996 to June 2000. There were 38 males and 25 females and their ages ranged from 23 to 71 years. Based on pathological classification and grading standards of brain glioma, patients were divided into grade I - II (n=30) and grade III- IV (n = 33). All cases received one operation but no radiotherapy and chemiotherapy before operation. Sample tissues were collected from tumor parenchyma. Non-neoplastic brain tissues were collected from another 12 non-tumor subjects who received craniocerebral trauma infra-decompression and regarded as the control group. There were l0 males and 2 females and their ages ranged from 16 to 54 years. The experiment had got confirmed consent from local ethic committee and the collection was provided confirmed consent from patients and their relatives. All samples were restained with HE staining so as to diagnose as the brain glioma. While, all patients with brain glioma received radiotherapy after operation and their survival periods were followed up. METHODS: Primary lesion wax of brain glioma was cut into serial sections and stained with S-P immunohistochemical staining. Brown substance which was observed in tumor nucleus was regarded as the positive expressions of both proliferating cell nuclear antigen and P27 protein. Automatic imaging analytic system was used to quantitatively analyze staining results of tumor. MAIN OUTCOME MEASURES: To compare the expressions of proliferating cell nuclear antigen and P27 protein in brain glioma tissues and non-tumor brain tissues and investigate the effect of various sexes, ages, survival periods and severities on the expressions of them in brain tissues. RESULTS: There was no significant difference of sexes and ages in the expressions of proliferating cell nuclear antigen and P27 protein (P 〉 0.05); however, the expressions of proliferating cell nuclear antigen and P27 protein were milder in non-tumor brain tissues than those in the brain glioma tissues (P 〈 0.05). Expression of proliferating cell nuclear antigen in brain tissue of grade III- IV severity was stronger than that of grade I - II severity, and the expression in ≥ 5-year survival periods were also stronger than that in 〈 5-year survival periods (P 〈 0.05). In addition, expression of P27 protein in brain tissue of grade III- IV severity was stronger than that of grade I - II severity, and the expression in ≥ 5-year survival periods were also stronger than that in 〈 5-year survival periods (P 〈 0.05). CONCLUSION: Abnormal expressions of proliferating cell nuclear antigen and P27 protein in human brain glioma are closely related to onset, development and prognosis of tumor.展开更多
目的观察莪术醇联合氟尿嘧啶对胃癌裸鼠皮下移植瘤的影响。方法将人胃癌细胞株BGC823接种于裸鼠皮下建立荷瘤裸鼠模型。将荷瘤裸鼠随机分为对照组、莪术醇组、氟尿嘧啶组、联合用药组(莪术醇联合氟尿嘧啶),记录各组的肿瘤体积和瘤重。...目的观察莪术醇联合氟尿嘧啶对胃癌裸鼠皮下移植瘤的影响。方法将人胃癌细胞株BGC823接种于裸鼠皮下建立荷瘤裸鼠模型。将荷瘤裸鼠随机分为对照组、莪术醇组、氟尿嘧啶组、联合用药组(莪术醇联合氟尿嘧啶),记录各组的肿瘤体积和瘤重。应用荧光定量聚合酶链反应(q PCR)和免疫组织化学法检测各组肿瘤组织中增殖细胞核抗原(PCNA)、P27的表达。结果对照组肿瘤体积和重量比其他3组升高(P<0.05);联合用药组肿瘤体积和重量低于莪术醇组(P<0.05);联合用药组肿瘤体积和重量与氟尿嘧啶组比较,差异无统计学意义(P>0.05)。各实验组肿瘤组织中PCNA的表达均低于对照组(P<0.05);与莪术醇组和氟尿嘧啶组比较,联合用药组PCNA的表达降低(P<0.05)。各实验组移植瘤组织中P27的表达均高于对照组(P<0.05);与莪术醇组比较,联合用药组P27的表达增强(P<0.05);与氟尿嘧啶组比较,联合用药组P27 m RNA的相对表达有升高趋势,但差异无统计学意义(P>0.05)。与莪术醇组和氟尿嘧啶组比较,联合用药组P27蛋白阳性率升高(P<0.05)。结论莪术醇联合氟尿嘧啶能抑制胃癌裸鼠皮下移植瘤的生长,其机制可能与调节PCNA、P27基因有关。展开更多
文摘Both proliferating cell nuclear antigen and P27 protein are important factors to regulate cell cycle. While, the combination of them can provide exactly objective markers to evaluate prognosis of patients with brain glioma needs to be further studied based on pathological level. OBJECTIVE: To observe the expressions of proliferating cell nuclear antigen and P27 protein in both injured and normal brain glioma tissues and analyze the effect of them on onset and development of brain glioma. DESIGN: Case contrast observation. SETTING: Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University. PARTICIPANTS: A total of 63 patients with brain glioma were selected from Department of Neurosurgery, the Second Affiliated Hospital of Xi'an Jiaotong University from July 1996 to June 2000. There were 38 males and 25 females and their ages ranged from 23 to 71 years. Based on pathological classification and grading standards of brain glioma, patients were divided into grade I - II (n=30) and grade III- IV (n = 33). All cases received one operation but no radiotherapy and chemiotherapy before operation. Sample tissues were collected from tumor parenchyma. Non-neoplastic brain tissues were collected from another 12 non-tumor subjects who received craniocerebral trauma infra-decompression and regarded as the control group. There were l0 males and 2 females and their ages ranged from 16 to 54 years. The experiment had got confirmed consent from local ethic committee and the collection was provided confirmed consent from patients and their relatives. All samples were restained with HE staining so as to diagnose as the brain glioma. While, all patients with brain glioma received radiotherapy after operation and their survival periods were followed up. METHODS: Primary lesion wax of brain glioma was cut into serial sections and stained with S-P immunohistochemical staining. Brown substance which was observed in tumor nucleus was regarded as the positive expressions of both proliferating cell nuclear antigen and P27 protein. Automatic imaging analytic system was used to quantitatively analyze staining results of tumor. MAIN OUTCOME MEASURES: To compare the expressions of proliferating cell nuclear antigen and P27 protein in brain glioma tissues and non-tumor brain tissues and investigate the effect of various sexes, ages, survival periods and severities on the expressions of them in brain tissues. RESULTS: There was no significant difference of sexes and ages in the expressions of proliferating cell nuclear antigen and P27 protein (P 〉 0.05); however, the expressions of proliferating cell nuclear antigen and P27 protein were milder in non-tumor brain tissues than those in the brain glioma tissues (P 〈 0.05). Expression of proliferating cell nuclear antigen in brain tissue of grade III- IV severity was stronger than that of grade I - II severity, and the expression in ≥ 5-year survival periods were also stronger than that in 〈 5-year survival periods (P 〈 0.05). In addition, expression of P27 protein in brain tissue of grade III- IV severity was stronger than that of grade I - II severity, and the expression in ≥ 5-year survival periods were also stronger than that in 〈 5-year survival periods (P 〈 0.05). CONCLUSION: Abnormal expressions of proliferating cell nuclear antigen and P27 protein in human brain glioma are closely related to onset, development and prognosis of tumor.
文摘目的观察莪术醇联合氟尿嘧啶对胃癌裸鼠皮下移植瘤的影响。方法将人胃癌细胞株BGC823接种于裸鼠皮下建立荷瘤裸鼠模型。将荷瘤裸鼠随机分为对照组、莪术醇组、氟尿嘧啶组、联合用药组(莪术醇联合氟尿嘧啶),记录各组的肿瘤体积和瘤重。应用荧光定量聚合酶链反应(q PCR)和免疫组织化学法检测各组肿瘤组织中增殖细胞核抗原(PCNA)、P27的表达。结果对照组肿瘤体积和重量比其他3组升高(P<0.05);联合用药组肿瘤体积和重量低于莪术醇组(P<0.05);联合用药组肿瘤体积和重量与氟尿嘧啶组比较,差异无统计学意义(P>0.05)。各实验组肿瘤组织中PCNA的表达均低于对照组(P<0.05);与莪术醇组和氟尿嘧啶组比较,联合用药组PCNA的表达降低(P<0.05)。各实验组移植瘤组织中P27的表达均高于对照组(P<0.05);与莪术醇组比较,联合用药组P27的表达增强(P<0.05);与氟尿嘧啶组比较,联合用药组P27 m RNA的相对表达有升高趋势,但差异无统计学意义(P>0.05)。与莪术醇组和氟尿嘧啶组比较,联合用药组P27蛋白阳性率升高(P<0.05)。结论莪术醇联合氟尿嘧啶能抑制胃癌裸鼠皮下移植瘤的生长,其机制可能与调节PCNA、P27基因有关。