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氟胞嘧啶作用后的红色毛癣菌表达谱特征分析 被引量:1

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摘要 红色毛癣菌是最常见的人类浅部真菌病病原体之一,可引起皮肤和指甲慢性感染.为研究抗真菌药物作用下特异表达的基因,用cDNA芯片技术分析了5-氟胞嘧啶作用下的红色毛癣菌表达谱.从红色毛癣菌表达序列标签文库中挑选基因制备cDNA芯片,测定5-氟胞嘧啶的最低抑菌浓度(minimum inhibitory concentration,MIC),进行芯片杂交和数据分析,选取有代表性的7个基因用实时定量反转录多聚酶链反应技术(real-time reverser transcription polymerase chain reaction,Real-timeRT-PCR)进行验证.数据分析表明,有474个基因发生了差异性表达,196个基因表达上调,278个基因表达下调.核酸代谢途径中的CDC21,核酸转录因子E2F1,RNA代谢途径中的SGN1,RIM4和NOP1等基因出现明显下调表达.其他参与了信号转导、分子伴侣活性、离子转运、次级代谢途径、氨基酸转运、脂质转运和潜在耐药机制等作用途径的基因表达也发生相应改变.所选基因的Real-timeRT-PCR结果验证了芯片结果的可信性.本研究得到了第1个5-氟胞嘧啶作用下的红色毛癣菌表达谱,为进一步研究5-氟胞嘧啶的药物作用机制和耐药机理提供了有价值的信息.
出处 《中国科学(C辑)》 CSCD 北大核心 2009年第7期699-710,共12页 Science in China(Series C)
基金 国家高技术研究发展计划(批准号:2006AA020504)资助项目
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