The abstract is read at the publisher; the summary is JClub's.
About 40% of accessible enhancer-like regions in human induced pluripotent stem cells show enhancer activity despite lacking active enhancer marks like histone H3 lysine-27 acetylation and enhancer-associated RNAs.
- Why it matters: Current enhancer-mapping approaches may miss a substantial portion of functional enhancers, limiting accurate models of how developmental gene programs are executed in pluripotent cells.
- What they did: The study combined massively parallel enhancer assays with chromatin structure and transcriptome profiling to annotate enhancers genome-wide, then used CRISPR-mediated epigenome editing or deletion to perturb noncanonical enhancer regions.
- The result: Perturbing these noncanonical enhancers decreased target gene expression and, in one instance, led to loss of pluripotent stem cell characteristics, supporting a functional role beyond neutral or inactive status.
The findingWhy it mattersWhat they didThe result
AI summary of the abstract · may contain errors · not medical advice · read the paper.