LRWD1 Knockout Raji Polyclonal Cells provide a CRISPR/Cas9-edited polyclonal knockout cell population designed for functional dissection of LRWD1 in a B-lymphocyte background. This pool of genetically heterogeneous cells carries targeted disruptions of the LRWD1 locus, enabling loss-of-function studies without requiring single-cell clonal isolation. By ablating LRWD1 expression, researchers can interrogate its contributions to DNA replication licensing, centromere maintenance, and chromatin organization within a lymphoblastoid context. The polyclonal format captures a spectrum of editing events, offering a robust and physiologically relevant model to assess gene function in a population reflective of native cellular heterogeneity.
The host Raji cell line is an EBV-positive Burkitt lymphoma-derived B lymphocyte model widely employed in immunological and cancer research. These lymphoblastoid cells retain features of adaptive immunity and antibody production, while their transformed phenotype facilitates studies of oncogenic processes. Raji cells are particularly susceptible to replication stress and chromosomal instability, making them an apt platform to examine the consequences of LRWD1 disruption on genome integrity and cell cycle progression in a lymphoma-relevant setting.
LRWD1 operates as a molecular scaffold that integrates signals from upstream regulators??including E2F transcription factors, CDK2/Cyclin E, CDT1, and CDC6??to orchestrate origin licensing and G1/S phase transition. It interacts directly with the ORC complex (ORC1?6), CENP?A, HJURP, G9a (EHMT2), and HP1 proteins. Downstream, LRWD1 promotes MCM helicase loading at replication origins, stabilizing CENP?A nucleosomes and recruiting HP1 to maintain centromere identity. This network ensures faithful DNA replication and chromosome segregation, with LRWD1 acting as a hub that couples chromatin state to replication timing and centromere assembly.
In the context of Raji cells, LRWD1 knockout illuminates how defective replication licensing contributes to the genomic instability characteristic of Burkitt lymphoma. Loss of LRWD1 may exacerbate replication stress, compromise centromere integrity, and trigger aberrant mitosis. These polyclonal knockout cells provide a tractable system to study the interplay between B?cell proliferation, cell cycle dysregulation, and chromosomal instability syndromes, potentially revealing vulnerabilities that can be targeted in lymphomagenesis.
Experimentally, these cells are suited for a range of assays: Western blotting to confirm LRWD1 ablation, flow cytometry for cell cycle perturbation analysis, immunofluorescence to visualize centromere defects or HP1 mislocalization, RNA?seq for transcriptome profiling, and functional tests such as proliferation, apoptosis, or hydroxyurea sensitivity assays. They enable mechanistic studies of DNA replication defects in lymphoma and the role of centromere dysfunction in cancer. For further information on this product or to discuss tailored applications, please contact Ascent Research.
