The C12orf57 Knockout HT29 Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout population designed to disrupt the C12orf57 gene in the human HT29 colorectal adenocarcinoma cell line. This loss-of-function model enables investigation of the largely uncharacterized molecular roles of C12orf57. Through CRISPR/Cas9-mediated gene disruption, the population exhibits heterogenous genetic modifications, enabling pooled functional studies without clonal selection artifacts. The polyclonal format provides representative knockout efficiencies suitable for phenotypic screening, drug sensitivity profiling, and mechanistic dissection of gene function in an epithelial context.
The HT29 cell line originates from a human colorectal adenocarcinoma and is a widely used model for intestinal epithelial barrier function and colorectal cancer biology. Derived from a female patient, these cells are near-diploid and produce mucin, a characteristic of differentiated intestinal epithelium. HT29 cells are commonly employed to study oncogenic signaling, tumorigenesis, and therapeutic responses, making them an ideal host for exploring genes like C12orf57. Their epithelial origin and well-characterized genetics provide a consistent platform for knockout-based investigations.
C12orf57 encodes a poorly characterized protein linked to DNA damage repair and Wnt signaling through its interactions with NHEJ factors XRCC5 (Ku80), XRCC6 (Ku70), and PARP1, as well as beta-catenin (CTNNB1). It functionally connects to canonical Wnt components TCF7L2 and AXIN1, with upstream inputs from p53 and TCF/LEF transcription factors. These interactions suggest C12orf57 sits at an intersection between DNA repair and Wnt-driven transcription, potentially influencing proliferation and survival pathways in colorectal cancer.
Disrupting C12orf57 in HT29 colorectal adenocarcinoma cells is expected to impact oncogenic processes. The protein??s links to NHEJ repair and beta-catenin signaling suggest that knockout cells may display impaired DNA damage resolution and altered Wnt-dependent proliferation, offering a model for genomic instability and aberrant growth. This system is valuable for studying how C12orf57 deficiency affects tumor suppression, chemosensitivity, and TCF/LEF-driven transcription, particularly given the HT29 background??s pre-existing Wnt pathway mutations.
These cells support colorectal cancer mechanistic studies, tumor suppressor validation, and DNA damage response profiling. Key techniques include Western blotting, RT-qPCR, ??-H2AX immunofluorescence, comet assays, and TOP/FOP flash reporter assays. MTT proliferation, colony formation, and cleaved caspase-3 apoptosis assays enable phenotypic analysis, while drug sensitivity screens with 5-fluorouracil and oxaliplatin facilitate translational research. For further inquiries, please contact Ascent Research.
