Transcriptomic Profiling of HepaRG Cells During Differentiation and 3-Methylcholanthrene Induction Using Oxford Nanopore Direct RNA Sequencing

The aryl hydrocarbon receptor (AhR) plays a crucial role in mediating xenobiotic responses, as well as regulating broader metabolic, differentiation, and stress response programs. In this study, we present a comprehensive long-read RNA sequencing dataset that examines transcriptional changes in the HepaRG human cell line during differentiation induced by dimethyl sulfoxide (DMSO) and acute activation of the AhR with 3-methylcholanthrene (3-MC). We identified 946 genes that were differentially expressed between the NonDiff and Diff conditions (303 genes upregulated and 643 genes downregulated), and 1786 genes that showed differential expression between Diff and Ind conditions (961 genes upregulated and 825 genes downregulated). The acute induction of 3-MC produced a robust AhR signature, characterized by the robust induction ofCYP1A1andCYP1B1, along with a coordinated downregulation of several constitutive hepatic genes involved in drug metabolism (e.g.,CYP3A4andCYP2C8). To facilitate further analysis and reuse of our data, we have provided processed gene-level count matrices, transcript per million (TPM) tables, and detailed differential expression results, as well as analysis scripts. This resource supports research into AhR biology, pharmacogene regulation, and the development of methods for long-read transcriptomics in liver models.Dataset:https://www.ncbi.nlm.nih.gov/bioproject/PRJNA1366635Dataset License:CC-BY 4.0