Abstract
目的 检测核干细胞因子(Nucleostemin,NS)基因在急性白血病细胞的表达情况,探讨NS基因与急性白血病发病机制之间的关系.方法从NS基因的3个变异体中筛选出共同序列设计特异性引物,应用逆转录-聚合酶链式反应技术(RT-PCR)对白血病细胞系K562、HL60和急性粒细胞白血病(M1、M2a和M3),急性单核细胞白血病(M5a和M5b),急性淋巴细胞白血病(ALL)进行NS基因表达水平的检测,以健康人和良性贫血患者骨髓单个核细胞作为对照.PCR产物片段为418 bp.结果 K562、HL60明显高表达NS基因,它与内参相比灰度值分别为0.735±0.260、0.449±0.190;急性白血病病例有相似的结果.M1+M2a、M3、M5a、M5b、ALL的灰度值分别为0.687±0.210、0.408±0.160、0.866±0.270、0.448±0.190、0.403±0.190;对照组健康人和良性贫血不表达或极微弱表达NS基因;同一细胞类型白血病,细胞分化停滞在早期阶段的表达NS基因的水平明显高于细胞分化停滞在后期的白血病,如K562高于HL60;M1、M2a高于M3;M5a高于M5b(P<0.01).结论 NS基因在急性白血病细胞中呈高表达状态,这与白血病的发生、发展有一定关联;不同分化阶段的白血病细胞表达NS基因水平存在着差异.NS基因在急性白血病细胞的表达情况也显示了癌细胞和干细胞在某些方面的相似性,可能是一个潜在的基因治疗靶位。
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
