The EHD1 Knockout Huh-7 Polyclonal Cells product provides a CRISPR/Cas9-edited polyclonal knockout cell population with targeted disruption of the EHD1 gene in the well-characterized Huh-7 human hepatocellular carcinoma cell line. This knockout model enables loss-of-function studies of EHD1, an ATPase critical for endocytic membrane trafficking. The polyclonal format ensures a heterogeneous mixture of edited alleles, offering a robust population-level analysis without clonal selection bias.
The Huh-7 cell line, derived from a human hepatocyte-derived carcinoma, displays an adherent epithelial morphology and is extensively employed in liver biology research. It serves as a prominent model for investigating drug metabolism, hepatocarcinogenesis, and hepatitis C virus (HCV) replication and entry. The genetic manipulation of Huh-7 cells with robust CRISPR editing provides a physiologically relevant system to dissect membrane trafficking pathways in hepatocellular contexts.
EHD1 functions as an ATP-dependent membrane-remodeling ATPase that oligomerizes on endosomal membranes to promote tubulation and fission, thereby driving the recycling of internalized cargo??including receptors and lipids??back to the plasma membrane. This process directly controls surface levels of key molecules such as the transferrin receptor, ??1 integrin, and the glucose transporter GLUT4. EHD1 activity is tightly regulated by upstream factors including Arf6, Rab GTPases (Rab5, Rabbit11), receptor tyrosine kinases (EGFR, insulin receptor), and PI3K/Akt signaling. It operates within multi-protein complexes with interacting partners like EHBP1, syndapin, rabenosyn-5, Rab11-FIP2, SNX1, and SNX5, and is centrally embedded in pathways such as the Arf6?CEHD1 recycling axis, the EHD1?CEHBP1?Cactin cytoskeleton link, and EHD1?CSNX1 retrograde transport.
In the Huh-7 hepatocellular carcinoma background, EHD1 knockout is particularly valuable for dissecting its role in cancer cell migration, invasion, and metastasis, given the gene??s regulation of integrin trafficking and cytoskeletal dynamics. The model facilitates examination of how disrupted endocytic recycling impacts insulin-responsive GLUT4 translocation and metabolic reprogramming. Moreover, because Huh-7 cells are permissive to HCV, this knockout pool allows exploration of EHD1??s involvement in HCV entry, a process reliant on host membrane trafficking machinery. Altered receptor recycling may also modulate signal transduction from EGFR and downstream Akt and ERK cascades, directly relevant to drug sensitivity and resistance mechanisms.
Typical experimental applications include Western blot confirmation of EHD1 loss, immunofluorescence colocalization with endosomal markers, transferrin and integrin recycling assays to quantify trafficking dynamics, scratch wound and transwell invasion assays to assess cell migration, and co-immunoprecipitation to map altered protein interactions. Phospho-signaling analysis and drug sensitivity assays can further link EHD1 to therapeutic responses. This polyclonal knockout cell population is suited for bulk functional genomics screens, phenotypic profiling, and liver-targeted drug delivery studies. Researchers are encouraged to contact Ascent Research for further product details and technical support.
