The MGST2 Knockout Raji Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from Raji B lymphocytes, engineered to disrupt the MGST2 gene. This polyclonal pool enables loss-of-function studies of microsomal glutathione S-transferase 2 without clonal isolation, providing a versatile tool to interrogate MGST2-dependent activities in a consistent cellular background. The CRISPR/Cas9-mediated gene disruption targets the coding region, abolishing MGST2 protein expression across the population, and is suitable for functional genomics, drug target validation, and pathway analysis in a B-lymphocyte context.
The Raji host cell line is a suspension lymphoblastoid cell line established from a Burkitt’s lymphoma patient, exhibiting an EBV-positive mature B-cell phenotype. These cells are widely employed to investigate B-cell biology, including immune response mechanisms, antibody production, antigen presentation, and cytokine secretion. Raji cells serve as a well-characterized model for hematological malignancies, particularly B-cell lymphomas and leukemias, and are instrumental in studying oncogenic signaling, chemoresistance, and immune evasion strategies encountered in aggressive B-cell neoplasms. Their capacity to recapitulate key aspects of B-lymphocyte physiology makes them a relevant host for genetic manipulation.
MGST2 encodes a microsomal glutathione S-transferase that conjugates reduced glutathione to electrophilic xenobiotics and lipid peroxides, contributing to cellular detoxification and protection against oxidative stress. In parallel, MGST2 functions as a leukotriene C4 synthase, catalyzing the conversion of arachidonic acid-derived leukotriene A4 to leukotriene C4, which is subsequently metabolized to LTD4 and LTE4. These cysteinyl leukotrienes signal through CYSLTR1 and CYSLTR2, promoting pro-inflammatory cascades. Upstream, MGST2 is transcriptionally activated by NFE2L2 (NRF2) in response to oxidative stress and by cytokines such as TNF-?? and IL-1??, linking it to inflammatory and cytoprotective pathways. Key interacting proteins include ALOX5 and its partner ALOX5AP (FLAP), which generate LTA4, and the glutathione conjugate transporter machinery. The pathway components ALOX5, ALOX5AP, LTA4H, LTC4S, CYSLTR1, CYSLTR2, GSH, NFE2L2, KEAP1, GPX4, and SLC7A11 collectively govern leukotriene biosynthesis and ferroptosis resistance, positioning MGST2 at the crossroads of arachidonic acid metabolism and glutathione-dependent redox regulation.
In the Raji B-cell context, MGST2-mediated leukotriene synthesis is implicated in autocrine and paracrine signaling that may modulate survival, proliferation, and inflammatory responses. By disrupting MGST2, this knockout model allows dissection of cysteinyl leukotriene-dependent pathways in B-cell malignancies, where lipid mediator signaling contributes to tumor microenvironment interactions and drug resistance. Moreover, ablation of MGST2 can enhance sensitivity to ferroptosis inducers and oxidative stress, offering a platform to investigate chemoresistance mechanisms and potential synthetic lethal relationships in lymphomas. The polyclonal nature mimics population-level gene disruption scenarios, making it suitable for pooled functional screens and bulk mechanistic studies in B-lymphocyte biology.
This knockout cell population is well-suited for diverse research applications, including the elucidation of leukotriene-mediated inflammation in B-cell malignancies, evaluation of oxidative stress responses and chemoresistance in lymphoma, and investigation of ferroptosis sensitivity in cancer. Representative experimental approaches with these cells include LTC4 ELISA for leukotriene quantification, glutathione conjugation activity assays, MTT-based chemosensitivity profiling, DCFDA staining for reactive oxygen species detection, C11-BODIPY-based lipid peroxidation measurement, and transcriptomic analysis via RNA-seq. Together with Western blotting and RT-qPCR for gene expression validation, these tools enable comprehensive mechanistic studies. For further technical details or ordering information, please contact Ascent Research.
