The MARK1 Knockout Raji Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the Raji B lymphocyte cell line, featuring targeted disruption of the MARK1 gene. This polyclonal pool offers a genetically heterogeneous loss-of-function model that avoids the clonal selection biases inherent in monoclonal cell lines, enabling robust interrogation of MARK1-dependent cellular mechanisms within a biologically variable population.
Raji cells are an Epstein-Barr virus (EBV)-positive B lymphocyte line originally established from a Burkitt lymphoma patient. This suspension cell line retains mature B cell characteristics and is widely employed in immunology, virology, and cancer research. The EBV-immortalized phenotype provides a relevant background for studying B cell signaling, lymphomagenesis, and host?Cvirus interactions, making it a valuable host for gene-edited models.
MARK1 (Microtubule Affinity-Regulating Kinase 1) is a serine/threonine kinase that critically regulates microtubule dynamics and cell polarity. It phosphorylates microtubule-associated proteins??tau, MAP2, and MAP4??leading to microtubule destabilization. In the Wnt pathway, MARK1 phosphorylates Dishevelled, thereby modulating ??-catenin stability and downstream gene expression. Upstream, MARK1 is activated by LKB1 (STK11) and AMPK, and it interacts with 14-3-3 proteins and microtubules. Through these interactions, MARK1 influences cell cycle progression, proliferation, and differentiation.
In the Raji B lymphocyte context, disruption of MARK1 provides a powerful tool to dissect its role in Wnt signaling pathways that are frequently dysregulated in lymphomas. MARK1??s involvement in microtubule remodeling and cell cycle control makes this model particularly significant for examining how its loss affects B cell proliferation, apoptosis, and polarity. The polyclonal knockout cells enable studies of MARK1 function in the context of Burkitt lymphoma and other B cell malignancies, where aberrant Wnt and microtubule dynamics contribute to pathogenesis.
These polyclonal MARK1 knockout Raji cells are suited for diverse applications, including investigating microtubule dynamics in lymphocytes, studying Wnt signaling modulation in B cells, and modeling tau phosphorylation events relevant to neurodegeneration. The cells are compatible with assays such as Western blotting for phosphorylated tau and MAP2, immunofluorescence for microtubule organization, flow cytometry for cell cycle analysis, and kinase inhibitor screening. For additional technical information or to discuss custom applications, please contact Ascent Research.
