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骨肉瘤P-糖蛋白、胎盘型谷胱甘肽-S-转移酶和DNA拓朴酶Ⅱ的表达及其与预后的关系
http://www.100md.com 《诊断病理学杂志》 2000年第1期
     作者:牟江洪 王东 陈俐

    单位:第三军医大学大坪医院野战外科研究所病理科 重庆 400042

    关键词:骨肉瘤;多药耐药性;预后

    诊断病理学杂志000111摘 要:目的 探讨骨肉瘤组织中P-糖蛋白(P-gp)、胎盘型谷胱甘肽-S-转移酶(GST-π)和DNA拓朴酶Ⅱ(TopoⅡ)的表达及其与预后的关系。方法 应用SP法检测P-gp、GST-π、TopoⅡ在80例骨肉瘤中的表达,并应用COX比例风险模型评估它们对预后的影响。结果 80例骨肉瘤中P-gp、GST-π和TopoⅡ的表达率分别为36.25%、91.25%和47.5%,其中P-gp和TopoⅡ表达与WHO新分型和预后显著相关(P<0.05)。结论 P-gp、GST-π、和ToPo Ⅱ等多因素联合作用是骨肉瘤多药耐药性(multi-drug resistance,MDR)的主要作用机制,并且P-gp和TopoⅡ可能成为评估骨肉瘤预后的有价值的指标。
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    分类号:R737.9 文献标识码:A

    文章编号:1007-8096(2000)01-0030-03

    Expression of P-gp, GST-π and Topoa Ⅱ nnd its prognostic significance in osteosarcoma

    Mou Jianhong ,Wang Dong ,Chen Li

    (Department of Pathology, Daping Hospital and Research Institute of Surgery,Third Military Medical University,Chonsping,400042)

    Abstract:Objective To study the expression of P-glycoprotein (P-gp), Glutathione-S-transferases π (GST-π) and DNA topoisomerase Ⅱ (Topo Ⅱ ) in osteosarcoma, and their correlation with prognosis. Method Expression of P-gp,GST-π and Topo Ⅱ were detected in 80 cases of osteosarcomas by SP immunohistochemical staining,and the correlalion with prognosis was analyzed by a COX proportion hazard model. Results The positive rates of P-gp, GST-πand Topo Ⅱ were 36.25% ,91.25% and 47.5% respectively in 80 cases of osteosarcomas.A significant relationship was found between P-gp and Topo Ⅱ expression and WHO classification, as well as the prognosis of the patients. Conclusions Co-expression of P-gp, GST-πand Topo Ⅱ may be the chief mechanism of multi-drug resistance and an inportant panameter to predict the prognosis of patients with osteosatcoma.
, 百拇医药
    Keywords:ossteosarcoma MDR prognosis

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    收稿日期:1999-07-15

    修稿日期:1999-09-27, 百拇医药