The KDM5D Knockout HCT 116 Polyclonal Cells represent a CRISPR/Cas9-edited polyclonal knockout cell population targeting the KDM5D gene in the HCT 116 human colorectal carcinoma cell line. This polyclonal knockout mixture, derived from a bulk-edited pool, provides a heterogeneous loss-of-function model that is well-suited for studying the collective effects of KDM5D disruption in a cancer-relevant context. By employing CRISPR/Cas9-mediated gene disruption, this product enables robust abrogation of KDM5D function across a population of cells, avoiding the limitations of single-clone artifacts and enabling assessment of phenotypic diversity. The knockout model is supplied as a ready-to-use polyclonal cell stock, facilitating straightforward integration into standard cell culture and downstream functional assays without the need for further clonal isolation. Researchers can leverage this system to investigate the role of KDM5D in epigenetic regulation and colorectal cancer biology.
The HCT 116 host cell line is a well-characterized epithelial cell model derived from a male colorectal carcinoma patient. These cells exhibit a near-diploid karyotype and retain many features of colorectal cancer, including active proliferation, invasive potential, and intact signaling pathways such as WNT, TGF-??, and PI3K/AKT. The male origin is particularly pertinent given that KDM5D is located on the Y chromosome and is expressed exclusively in male tissues. HCT 116 cells have been extensively used in functional genomics, drug screening, and cancer epigenetics, making them an appropriate chassis for interrogating KDM5D function. Their predictable growth kinetics and well-documented molecular landscape allow for rigorous analysis of KDM5D-dependent phenotypes, including alterations in histone modification patterns and gene expression programs.
KDM5D encodes a histone lysine demethylase that specifically removes tri- and di-methyl groups from lysine 4 of histone H3 (H3K4me3/me2), thereby converting active chromatin marks into repressive states and leading to transcriptional silencing of target genes. This demethylase activity is integral to chromatin remodeling, cellular differentiation, and spermatogenesis. The enzyme functions within a broader regulatory network: it is activated downstream of androgen receptor signaling and is transcriptionally regulated by the SOX2 transcription factor. KDM5D interacts with PRC2 complex components and various chromatin remodelers, positioning it at the intersection of multiple epigenetic control mechanisms. Through its demethylation of H3K4me3, KDM5D represses genes involved in cell proliferation and differentiation, thus exerting influence over cell fate decisions. Disruption of KDM5D is therefore expected to lead to a global increase in H3K4 methylation, altering the transcriptional landscape in a manner that can be monitored by ChIP-qPCR and RNA-seq.
In the HCT 116 colorectal cancer model, knockout of KDM5D provides a powerful system to dissect the contribution of Y-linked epigenetic modifiers to tumor biology. Given that KDM5D is frequently downregulated in certain cancers and that its loss has been associated with poor prognosis and altered cellular behavior, this polyclonal knockout population enables the study of KDM5D??s tumor-suppressive or oncogenic roles. The male-specific expression of KDM5D also makes this model valuable for exploring sex-specific differences in colorectal cancer. By comparing the polyclonal knockout cells to wild-type HCT 116, researchers can assess changes in cell proliferation, apoptosis, and invasive properties, linking KDM5D activity to cancer pathogenesis. Furthermore, the androgen receptor?CKDM5D axis can be probed in this system, as HCT 116 cells are responsive to androgens, providing a platform to investigate androgen-driven epigenetic reprogramming.
The KDM5D Knockout HCT 116 Polyclonal Cells are ideally suited for a wide range of downstream applications in cancer epigenetics and chromatin biology. Researchers can perform western blotting and immunofluorescence to confirm the loss of KDM5D protein and monitor global or locus-specific changes in H3K4 methylation via ChIP-qPCR. Transcriptomic profiling by RNA-seq enables identification of KDM5D target genes and affected pathways. Functional assays, including cell proliferation, colony formation, and apoptosis assays, quantitatively measure the impact of KDM5D disruption on cellular fitness. Additionally, these cells can be used in drug response studies to evaluate the role of KDM5D in chemosensitivity. For further details on how this product can integrate into your research program, please contact Ascent Research.
