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The 3' untranslated region (UTR)-associated RNAs (uaRNAs) have important roles in various biological processes, especially in development. However, since they overlap with protein-coding mRNAs, uaRNAs are difficult to study by RNA interference techniques. We recently identified a chemical molecule, 3-benzyl-5-((2-nitrophenoxy) methyl)-dihydrofuran-2(3H)-one (3BDO), that could efficiently induce human embryonic stem cells (hESCs) differentiation, and meanwhile selectively and efficiently downregulate the uaRNA FLJ11812. By acting as a competing endogenous RNA, downregulated FLJ11812 by 3BDO further increased miR-4459 level in hESCs. miR-4459 could decrease the expression of its targets, CDC20B and ATG13, and thus altered stemness via cell cycle and autophagy. Our results revealed that FLJ11812 played a key role in maintenance of stemness of hESCs for the first time. The findings provide new clues and a powerful tool for investigating the action mechanism of FLJ11812 in early development.

A 3′UTR-Associated RNA, FLJ11812 Maintains Stemness of Human Embryonic Stem Cells by Targeting miR-4459