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P-170蛋白过度表达与髓细胞性白血病预后的关系

EXPRESSION OF P GLYCOPROTEIN IN MYELOID LEUKEMIA AND ITS PROGNOSTIC SIGNIFICANCE

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【作者】 邹俊晖潘祥林王岩王正起王应夫郑玉兰

【Author】 Zou Junhui, Pan Xianglin, Wang Yan, et al (Dept. of Hematology, the Affiliated Hospital of Shandong Medical University)$$$$

【机构】 山东医科大学附属医院血液科山东医科大学诊断学教研室山东医科大学第二附属医院检验科

【摘要】 为探讨髓细胞性白血病(m yeloid leukem ia)患者P-170 蛋白过度表达与预后的关系,用免疫组化LSAB法(labelled streptavidin biotin assay)检测66 例急性髓细胞性白血病(acute m yeloid leukem ia,AML)及20 例慢性髓细胞性白血病(chronic m yeloid leukem ia, CML)患者外周血单个核细胞的P-170 蛋白表达。结果表明,初治组AML患者P-170 表达率为26.5% (9/34);难治/复发组为68.4% (13/19),比初治组明显增高(P< 0.005);完全缓解组为23.1% (3/13),与初治组差异无显著性。诱导化疗P-170+ 者完全缓解(CR)率为22.2% (7/9),P-170- 者为80% (20/25),二者差异有显著性(P= 0.0036)。CML慢性或加速期8 例患者无1 例P-170 表达,急变期患者P-170 表达率为50% (6/12),二者差异有显著性(P= 0.042)。提示P-170 蛋白过度表达是髓细胞性白血病化疗耐药和不良预后的标志

【Abstract】 Labelled streptavidin biotin immunohistochemical staining technique(LSAB) was used to detect the mdrl associated P glycoprotein (P gp) expression in 66 patients with AML and 20 with CML. In AML patients, 9/34 at diagnosis, 13/19 in relapses or refractory diseases, and 3/13 in CR showed P gp overexpression. The CR rates of induction therapy were 20/25(80%) in P gp - and 2/9(22.2%) in P gp + cases(P= 0.0036 ). P gp was also detected in 8/16 CML cases in blast crisis, while none in eight chronic or accelarative cases, P=0.042. P gp overexpression may contribute to drug resistance and poor prognosis in myeloid leukemias.

  • 【文献出处】 山东医科大学学报 ,ACTA ACADEMIAE MEDICINAE SHANDONG , 编辑部邮箱 ,1999年04期
  • 【分类号】R733.73
  • 【下载频次】13
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