ArticlebioRxiv : the preprint server for biology2026
Comparative transcriptomics analysis of histone deacetylases, transcription factors, and ion channel genes in human iPSC-cardiomyocytes vs. the adult human heart.
Article in bioRxiv : the preprint server for biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Epigenetic modulators such as histone deacetylases (HDACs) and histone acetyltransferases (HATs) are known master regulators of gene expression that substantially impact cardiac electrophysiology. Novel pharmacological agents, HDAC inhibitors, are rapidly emerging as treatments for cancer and immune diseases, and their effects on cardiac ion channels (ICs) are of great interest. We used small interfering RNAs to individually suppress each of the known HDACs, including sirtuins (SIRTs), in human induced pluripotent stem-cell-derived cardiomyocytes (hiPSC-CMs), iCell2. Follow-up deep-sequencing allowed comparison to identically processed and normalized RNA sequencing data from adult human left ventricle (LV) from the GTEx database. The transcriptomics analysis revealed high similarity of gene expression patterns for cardiac ICs (with some differences in calcium influx and calcium buffering related genes), as well as strong co-regulation by cardiac transcription factors (TFs) and
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