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作 者:马二民[1] 花亚伟[2] 姬社青[2] 孔烨[2] 张斌[2] 张占东[1] 张鉴哲[2]
机构地区:[1]郑州大学第一附属医院普外科,郑州市450052 [2]河南省肿瘤医院普外科,郑州市450008
出 处:《医药论坛杂志》2007年第2期1-3,共3页Journal of Medical Forum
摘 要:目的探讨缺氧诱导因子(HIF—1α)、血管内皮生长因子(VEGF)和层粘连蛋白因子受体(LN—R)在胃肠间质瘤(GISTs)中的表达及其在预后判断中的价值。方法 应用免疫组织化学S—P法和Envision二步法方法对95例GISTs检测,观察HIF-1a,VEGF和LN—R。在GISTs中的表达情况。结果 按Flecther标准将95例GISTs分为极低风险(2例),低风险(12例),中度风险(53例)和高度风险(28例),HIF—1a,VEGF的表达率在极低和低风险,中度风险和高度风险GIST中的表达逐渐升高,3组比较有较显著差异(P〈0.05);而LN—R仅7例表达,在侵透浆膜的中度恶性和高度恶性中占6(83.7%)例表达。肿瘤按直径〈5cm,5—10cm,〉10cm和核分裂〈5/50HPF,5—10/50HPF,〉10/50HPF分为三组,HIF—1a,VEGF的表达也是渐升高的趋势,且3组比较有较显著差异(P〈0.05)。结论 HIF—1a,VEGF和LN—R在GISTs中的表达可能提示肿瘤的恶性程度及其预后,并可作为判断预后的有用标志物。同时可能给GISTs的抗血管分子治疗提供科学依据。Objective To explore the expression and the value of HIF - 1 a , VEGF and LN - R in judgement of the prognosis of gastrointestinal stromal tumors (GISTs). Methods The expression of HIF- 1a ,VEGF and LN -R protein was examined in 95 GISTs by immunohistochemistry S -P and Envision methods. Results We divided the 95 cases into very low- risk (2 cases) and low -risk (12 cases ), middle -risk(53 cases) and high -risk(28 cases)to refer the standard of Flecther's. The expresion rate in the three classes increased by degrees ( P 〈 0. 05 ) ; but only 7 cases express LN - R in GISTs,the majority (6 cases,83.7% ) of which invaded serous membrane in the middle - risk and high -risk GISTs. The expression of HIF- 1a and VEGF is also increased by degrees ( P 〈0. 05)in the cases which were divided into three classes according to diameter( 〈 5cm,5 - 10cm and 〉 10cm) and caryocinesis number( 〈5/50HPF,5 - 10/50HPF and 〉 10/50HPF). Conclusion HIF - 1a,VEGF and LN - R expression is closely related with the prognosis' of GISTs and can serve as important preditors for survival. Meanwhile a new molecular therapy is provided according to our experimentation.
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