The HDAC2 Knockout HEK293T Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population derived from the HEK293T human embryonic kidney cell line. These polyclonal cells carry targeted disruption of the HDAC2 gene, which encodes a histone deacetylase critical for chromatin remodeling and transcriptional repression. The knockout model provides a loss-of-function tool for studying HDAC2-dependent pathways without the necessity of clonal selection, thereby maintaining a heterogeneous genetic background reflective of bulk population editing. This population is suitable for functional genomics, drug screening, and epigenetic research applications where gene dosage or complete ablation effects are investigated across a polyclonal context.
HEK293T cells are a well-characterized human embryonic kidney epithelial cell line that stably expresses the SV40 large T antigen, enabling high-level amplification of episomal plasmids and robust protein expression. Derived from the parental HEK293 line, these cells exhibit adherent growth and a relatively straightforward genetic manipulation profile. Their epithelial origin and rapid proliferation make them a preferred platform for transient and stable transfection, lentiviral production, and large-scale proteomic studies. The HEK293T background has been extensively used in signaling, cancer biology, and epigenetic research, providing a reproducible context for investigating gene function.
HDAC2 deacetylates lysine residues on histone H3 and H4, promoting chromatin condensation and transcriptional silencing. It functions within corepressor complexes comprising SIN3A, NCOR1, MTA2, RbAp46, and CoREST components. Upstream, HDAC2 expression is driven by SP1 and MYC, while its activity is phosphorylated by CK2 kinase and influenced by growth factor signaling. HDAC2 interacts with p53 to repress targets such as CDKN1A (p21) and CCND1 (cyclin D1), thereby restraining cell cycle progression; it also suppresses BCL2, modulating apoptosis. Knockout of HDAC2 relieves this repression, derepressing p53 target genes and cell cycle inhibitors, which can shift the balance toward growth arrest or apoptosis.
The HEK293T epithelial background provides a relevant platform for studying HDAC2 function in embryonic kidney-derived cells. Disruption of HDAC2 in these cells alters chromatin acetylation landscapes, sensitizing them to apoptotic stimuli and impairing normal proliferation control. This model is particularly suited for probing crosstalk between HDAC2 and p53 or MYC pathways, as HEK293T cells harbor intact upstream regulatory circuits. The line’s high transfectability further enables mechanistic dissection through complementation and domain-mapping experiments.
Key applications include epigenetic drug screening to profile HDAC isoform selectivity, cancer biology studies using proliferation and apoptosis assays, and transcriptional regulation analyses via ChIP-qPCR and RNA-seq. In neurobiology, HDAC2 knockout cells serve as a tool to investigate chromatin modifications in neurodegeneration models. Flow cytometry and Western blotting enable validation of downstream target expression. For further information, please contact Ascent Research.
