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硫化砷对急性早幼粒白血病细胞PNAS-2基因表达的影响

ACADEMIC JOURNAL OF SHANGHAI SECOND MEDICAL UNIVERSITY(2005)

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Abstract
目的探讨硫化砷诱导急性早幼粒细胞白血病(APL)细胞凋亡的分子机制.方法应用基因表达谱芯片、RT PCR技术,检测硫化砷作用前后NB4细胞、APL原代细胞PNAS-2基因表达的变化.结果基因表达谱芯片杂交显示,硫化砷作用于NB4细胞后,PNAS-2基因表达下调;RT PCR结果发现,NB4细胞在硫化砷作用后PNAS-2表达有明显下调,并呈时间依赖性;APL原代细胞经硫化砷作用后,PNAS-2表达也呈下降趋势.结论硫化砷能够下调PNAS-2基因在NB4细胞株和APL原代细胞中的表达,推测PNAS-2基因可能是硫化砷治疗APL的靶基因之一.
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