| | | 血管内皮生长因子和抑癌基因P33ING1与胃癌生物学行为的关系
| | 药学论文范文【关键词】 血管内皮生长因子类;P33ING1;胃肿瘤;免疫组织化学 Relationship of vascular endothelial growth factor and p33ING1 with biological behaviors of gastric carcinoma 【Abstract】 AIM: To study the expressions of vascular endothelial growth factor(VEGF) and P33ING1 in gastric carcinoma, and their relations to the clinicopathological features. METHODS: VEGF protein and P33ING1 protein expressions in 102 cases of human gastric carcinoma tissues and normal tissues around the foci were examined by using immunohistochemistry. RESULTS: The expression of VEGF was high in carcinoma tissues while low in normal tissues(χ2=68.0, P<0.01), as for P33ING1, the patter was contrary(χ2=40.3, P<0.01). The expression of VEGF was related to serosa invasion, TNM stage, lymph node metastasis and 5year survival rate (P<0.05). There was a close relation between the expression of P33ING1 and tumor location, serosa invasion, TNM stage, lymph node metastasis and 5year survival rate (P<0.05). CONCLUSION: VEGF and P33ING are positively correlated with biological behaviors of gastric carcinoma, suggesting that examination by using immunohistochemistry for VEGF and P33ING1 may be of value in making diagnosis, evaluating evolution of disease in patients with gastric carcinoma at the same time. 【Keywords】 vascular endothelial growth factors; p33ING1; stomach neoplasm; immunohistochemistry 【摘要】 目的药学论文范文: 研究血管内皮生长因子(vascular endothelial growth factor, VEGF)和抑癌基因P33ING1蛋白表达与胃癌临床特征之间的药学论文范文关系. 方法: 采用免疫组化法检测102例胃癌患者手术切除的癌组织和癌周正常组织中VEGF 和P33ING1表达水平. 结果: VEGF在正常组织中呈高表达,在肿瘤组织中呈低表达,两者比较差异有统计学意义(χ2=68.0, P<0.01);P33ING1在正常组织中呈高表达,在肿瘤组织中呈低表达,两者比较差异有统计学意义(χ2=40.3, P<0.01). VEGF蛋白表达水平与胃癌浆膜浸润、TNM分期、淋巴结转移、5 a生存率有关(P<0.05),P33ING1蛋白表达水平与胃癌肿瘤部位、浆膜浸润、TNM分期、淋巴结转移、5 a生存率有关(P<0.05). 结论: VEGF与P33ING1的表达和胃癌生物学行为有关,同时进行VEGF与P33ING1免疫组化法检测对胃癌患者病情判断和预后评价有一定的临床意义. 【关键词】 血管内皮生长因子类;P33ING1;胃肿瘤;免疫组织化学 0引言 胃癌是我国人群中常见的消化道恶性肿瘤之一,其死亡率高居恶性肿瘤死亡率前几位,然而有关胃癌发生发展确切的分子机制仍不十分清楚,其中血管生长因子及抑癌基因的影响倍受关注. 血管内皮生长因子(vascular endothelial growth factor, VEGF )是目前发现最重要的血管生长因子,它与肿瘤患者预后是近几年的研究热点,P33ING1是新近克隆出来的一种抑癌基因,在人类许多肿瘤组织中发现存在P33ING1表达降低,并参与部分肿瘤的演进过程. 我们采用免疫组化方法检测VEGF和P33ING1蛋白在胃癌中的表达,探讨两者与胃癌生物学行为和预后的关系. 1材料和方法 1.1材料收集广东医学院附属医院199701/200212病理科归档的病历资料完整的102例胃癌组织标本,按全国胃癌协作组病理规范进行病理诊断和分级,在研究中,将肿瘤细分成两个组织学亚型:分化程度较好包括乳头状腺癌和管状腺癌,分化程度较差包括低分化腺癌、粘液细胞癌和印戒细胞癌,所有患者术前均未行化疗或放疗. 同时另取癌旁非肿瘤的正常组织石蜡标本为对照. 抗VEGF鼠源单克隆一抗购自福州迈新试剂公司;抗P33ING1鼠源单克隆一抗购自美国抗体诊断试剂公司,为杂交瘤培养上清,不稀释;Envision免疫组织化学试剂盒购于丹麦Dako公司.
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