The CAV1 Knockout MES-OV Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the MES-OV human ovarian adenocarcinoma cell line. This product provides a heterogeneous pool of cells harboring targeted disruption of the CAV1 gene, enabling loss-of-function studies of caveolin-1. The polyclonal format offers a robust model for assessing overall gene knockout effects without clonal selection biases, ideal for cancer biology, signal transduction, and membrane trafficking investigations.
The MES-OV cell line, originally established from a human ovarian adenocarcinoma, serves as a well-characterized model for ovarian cancer research. These cells retain key features of ovarian adenocarcinoma, including dysregulated proliferation, migration, and signaling pathways relevant to tumorigenesis. The parental line??s epithelial origin and genetic background provide a physiologically relevant platform for investigating the molecular mechanisms underlying ovarian cancer progression and therapeutic response.
Caveolin-1 (CAV1) is a principal scaffolding protein of caveolae, plasma membrane invaginations involved in endocytosis, lipid homeostasis, and signal transduction. CAV1 directly binds cholesterol and interacts with signaling receptors such as EGFR, integrins, and Src family kinases, modulating downstream cascades including PI3K/Akt, MAPK/ERK, and TGF-??/Smad pathways. The protein is regulated by Src kinases, reactive oxygen species, cholesterol, TGF-??, and insulin, and in turn influences effectors like eNOS, Akt, ERK, STAT3, cyclin D1, and Rho GTPases. CAV1 also associates with cavins, notably PTRF/cavin-1, to form functional caveolar complexes. Disruption of CAV1 impairs caveolae formation, leading to altered phosphorylation of Akt and ERK, disrupted endocytic trafficking, and changes in cell migration and proliferation.
In ovarian adenocarcinoma, CAV1 exhibits context-dependent roles, acting either as a tumor suppressor or oncogenic factor depending on the cellular and molecular milieu. The MES-OV model with CAV1 knockout aids in dissecting these dual functions, particularly regarding PI3K/Akt and MAPK/ERK signaling outputs that govern cell survival, growth, and invasiveness. Additionally, this model permits examination of caveolin-1??s impact on drug resistance mechanisms, as caveolae-mediated endocytosis can influence chemotherapeutic agent internalization. The polyclonal knockout population reflects heterogeneous gene disruption, mimicking the variability observed in tumor biology.
This product is suitable for a wide range of experimental applications, including western blotting for total and phospho-proteins such as p-Akt and p-ERK, immunofluorescence microscopy to visualize caveolae markers, and cell migration and invasion assays to evaluate metastatic potential. Co-immunoprecipitation studies can map CAV1 interactors like EGFR, integrins, and cavin-1, while qRT-PCR confirms transcriptional effects. Cholesterol depletion/repletion experiments further elucidate lipid-dependent signaling. Cell proliferation assays monitor growth changes. For further technical details or support, please contact Ascent Research.
