The DIAPH3 Knockout MES-OV Polyclonal Cells product provides a CRISPR/Cas9-edited polyclonal knockout cell population of the DIAPH3 gene in the human ovarian clear cell carcinoma cell line MES-OV. This polyclonal knockout model enables loss-of-function studies of the formin protein DIAPH3, a key regulator of actin dynamics and cell migration. By using a polyclonal population of gene-disrupted cells, researchers can analyze the collective effects of DIAPH3 ablation without clonal isolation, offering a robust system for investigating metastatic behavior in ovarian cancer.
The MES-OV cell line was derived from a human ovarian clear cell carcinoma and serves as a well-characterized model for ovarian cancer research. Ovarian clear cell carcinoma is a distinct histotype associated with chemoresistance and poor prognosis, making it essential to study the molecular drivers of its invasive phenotype. MES-OV cells retain properties of the tumor microenvironment, including responsiveness to Rho GTPase signaling and extracellular matrix cues, providing a relevant cellular context for examining cytoskeletal remodeling and cell adhesion.
DIAPH3 is a member of the formin family and functions downstream of RhoA and Rac1 GTPases, which are activated by PI3K/Akt and integrin signaling. Upon activation, DIAPH3 nucleates actin polymerization through its interactions with profilin and globular actin, leading to the formation of linear F-actin filaments. Additionally, DIAPH3 stabilizes microtubules by associating with microtubule-associated proteins and the adenomatous polyposis coli (APC) protein, thereby coordinating actin and microtubule cytoskeletal networks. This dual functionality positions DIAPH3 at a crossroad of cytoskeletal dynamics, with ROCK and mDia acting as representative components of the same signaling pathway. Downstream, DIAPH3-dependent actin assembly contributes to the formation of focal adhesions and invadopodia, structures essential for cell migration and invasion.
In MES-OV ovarian cancer cells, DIAPH3 plays a critical role in promoting cell motility and invasion, processes that underpin peritoneal dissemination and metastasis. Knockout of DIAPH3 using this polyclonal cell population impairs actin filament nucleation and microtubule stabilization, resulting in diminished cell migration and adhesion. This model allows for the dissection of DIAPH3??s specific contributions to the invasive phenotype of ovarian clear cell carcinoma, independent of other formin family members. Moreover, the polyclonal nature ensures that the observed phenotypes are not artifacts of clonal selection, increasing the translational relevance of findings to heterogeneous tumor cell populations.
This polyclonal DIAPH3 knockout cell product is ideally suited for a range of functional assays, including Transwell migration and invasion assays, phalloidin staining to visualize F-actin organization, western blotting to assess downstream signaling changes, and RT-qPCR to quantify gene expression alterations. Researchers can employ this model to investigate the role of DIAPH3 in Rho GTPase-mediated cytoskeletal reorganization, evaluate integrin-dependent cell adhesion dynamics, or screen for compounds that target metastatic pathways in ovarian cancer. For further information or to discuss custom applications, please contact Ascent Research.
