【作者】 李勇；

【导师】 陈湘；

【作者基本信息】 中南大学 ， 泌尿外科， 2008， 硕士

【摘要】 目的探讨肿瘤标记物血管内皮生长因子(VEGF)和神经元特异性烯醇化酶(NSE)在良恶性嗜铬细胞瘤组织中的表达,分析其可能的临床价值及病理学意义,为临床鉴别良恶性嗜铬细胞瘤提供辅助依据。方法本研究应用免疫组化(SP法)检测16例恶性嗜铬细胞瘤组织、18例良性嗜铬细胞瘤组织及17例正常肾上腺髓质组织中细胞因子VEGF和NSE表达情况,显微镜下判断组织切片的染色结果。结果1、VEGF阳性表达率在正常肾上腺髓质、良性和恶性嗜铬细胞瘤中分别为17.64%、33.33%和81.25%,恶性嗜铬细胞瘤VEGF表达明显强于正常肾上腺髓质和良性嗜铬细胞瘤(P＜0.01)。良性肿瘤和正常肾上腺髓质的VEGF表达无显著性差异(P＞0.05)。恶性嗜铬细胞瘤强阳性率明显高于良性嗜铬细胞瘤(P=0.003,＜0.01)。2、NSE阳性表达率在三组中比例分别为11.76%、50.00%和87.50%,良、恶性嗜铬细胞瘤NSE表达差异有显著性意义(P＜0.05),良性嗜铬细胞瘤NSE的表达高于正常肾上腺髓质的NSE表达(P＜0.05)。恶性嗜铬细胞瘤强阳性率高于良性嗜铬细胞瘤(P=0.030,＜0.05)。3、VEGF和NSE共同阳性表达在良恶性嗜铬细胞瘤之间有显著性差异(P=0.004,＜0.01)。结论1、VEGF在恶性嗜铬细胞瘤组织中的表达明显高于良性嗜铬细胞瘤。VEGF可能为鉴别良恶性嗜铬细胞瘤提供辅助生物学指标。2、NSE在恶性嗜铬细胞瘤组织中的表达高于良性嗜铬细胞瘤。NSE可能为鉴别良恶性嗜铬细胞瘤提供辅助生物学指标。3、临床上检测VEGF和NSE可能为鉴别良恶性嗜铬细胞瘤提供辅助依据,共同检测VEGF和NSE可能提高良恶性嗜铬细胞瘤鉴别的敏感性。更多还原

【Abstract】 Objective:To study the expression and significance of tumor makers (VEGF and NSE)in benign and malignant pheochromocytoma.Analyze the possible clinical value and pathological significance.And providing assist basis to distinguish its benign and malignant.Methods:The tissue of the tumor was embedded with the paraffin after operation with 18 cases of benign tumor,16 cases of malignant tumor and 17 cases of normal adrenal medulla.The intensity and area of the expression for VEGF and NSE was studied by immunohistochemical staining in different tissue.The results of the staining were judged under the microscope.Results:1、The positive rate of staining for VEGF is 17.64%、33.33% and 81.25%in the section of normal,benign and malignant tissue, respectively.The positive rate for VEGF in malignant is significant higher than benign tissue(P＜0.01).The positive rate of staining for VEGF has no significant difference between benign and normal tissue (P＞0.05).The strong positive rate for VEGF in malignant is significant higher than benign tissue(P=0.003,＜0.01).2、The positive rate of staining for NSE is 11.76%、50.00%and 87.50%in the section of normal,benign and malignant tissue.The positive rate of staining for NSE has significant difference between benign and malignant pheochromocytoma(P＜0.05).And the expression in benign tissue is also higher than normal tissue(P＜0.05).The strong positive rate for VEGF in malignant is higher than benign tissue(P=0.030,＜0.05).3、The copositive rate of VEGF and NSE in malignant tissue is higher than benign tissue(P=0.004,＜0.01).Conclusion:1、The expression of VEGF in malignant pheochromocytoma is significant higher than the benign tissue,and it may provide an assist biology index to distinguish the benign and malignant pheochromocytoma.2、The expression of NSE in malignant pheochromocytoma is higher than the benign tissue,and it may provide an assist biology index to distinguish the benign and malignant pheochromocytoma.3、Clinically,the detection of VEGF and NSE may offer assist basis to distinguish the benign and malignant pheochromocytoma.And the co-detection may elevate the sensitivity.更多还原