人诱导多能干细胞重编程过程中长链非编码RNA的差异表达研究

Studies on the long non-coding RNA during the reprogramming of human pluripotent stem cells

目的探讨人诱导多能干细胞重编程过程中长链非编码RNA(lncRNA)的表达改变及其作用。方法利用Agilent Human lncRNA(4×180K)芯片检测人体细胞、诱导多能干细胞以及胚胎干细胞中lncRNA的表达情况。通过数据分析比较人体细胞诱导为多能干细胞后lncRNA的差异表达,筛选出在重编程过程中可能发挥作用的lncRNA。结果人诱导多能干细胞lncRNA表达谱类似于胚胎干细胞而与体细胞不同。通过聚类分析发现诱导多能干细胞与体细胞之间有3 156个差异表达lncRNA。通过生物学分析发现人体细胞诱导为多能干细胞重编程过程中有222个差异表达的lncRNA。结论 lncRNA在人诱导多能干细胞重编程过程中可能发挥着重要的作用。

Objective To investigate the changes and roles of the long non-coding RNA (IncRNA)during the reprogramming of human induced pluripotent stem cells. Methods Agilent Human lncRNA (4 × 180K) chip was used to check the expression of lncRNA in somatic cells, induced pluripotent stem cells and embryonic stem cells. Compared with differentially expressed lncRNA in somatic cells and induced pluripotent stem cells, lncRNA was selected that may play an important role during the reprogramming of human pluripotent stem cells. Results The lncRNA expression profiles in induced pluripotent stem cells were similar to embryonic stem cells, but were different from the somatic cells. A total of 3 156 differentially expressed lncRNAs were found between stem cells and somatic cells by cluster analysis, and 222 differentially expressed lncRNAs were found during the reprogramming process of human pluripotent stem cells by biological analysis. Conclusion lncRNA may play an important role in reprogramming process of human pluripotent stem.