Mouse ESCs (ES-D3) with Ash2l depletion

We showed a novel mechanism in which Ash2l directly binds to super-enhancers of several stemness genes to regulate pluripotency and self-renewal in pluripotent stem cells. Ash2l recruits Oct4/Sox2/Nanog (OSN) to form Ash2l/OSN complex at the super-enhancers of Jarid2, Nanog, Sox2, and Oct4, and further drives enhancer activation, upregulation of stemness genes, and maintains the pluripotent circuitry. Ash2l knockdown abrogates the OSN recruitment to all super-enhancers and further hinders the enhancer activation. Mouse ESCs (ES-D3) were infected with lentivirus containing either control or shRNA targeting Ash2l sequence. DNA was then extracted from both samples and subjected to ChIP-seq analysis.