芳香化酶在胶质母细胞瘤细胞系SHG-44细胞中的表达及调控

STUDY ON GENE EXPRESSION AND REGULATION OF AROMATASE IN MALIGNANT GLIOMA CELL LINE SHG-44

目的 研究芳香化酶细胞色素P45 0 (AROM)及雌激素受体 (ER α)在胶质母细胞瘤细胞系SHG 4 4细胞中的基因表达。 方法 细胞培养、免疫细胞化学染色、原位杂交染色及RT PCR技术。 结果 在SHG 4 4细胞中分别检测到AROM及ER α的表达 ,进一步发现SHG 4 4细胞中AROM的表达是由多个组织特异性启动子驱动基因的转录。 结论 可能为中枢神经系统肿瘤发生的激素调节提供新的资料。

Objective To explore the gene expression of aromatase and estrogen receptor (ER-α) in malignant glioma cell line SHG-44. Methods Cell culture, immunocytochemistry, in situ hybridization and RT-PCR techniques were used. Results Aromatase and estrogen receptor gene expressions were detected in SHG-44 cells.The aromatase gene in these cells was expressed by means of the multi promoters (1^3, 1^4 and P Ⅱ).Conclusion It may provide some new data for the hormone regulation in carcinoma of nerve system.