The MGST1 Knockout Raji Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout cell population derived from the Raji B lymphocyte line, designed to disrupt the human MGST1 gene. This heterogeneous pool of gene-edited cells serves as a loss-of-function model, enabling functional studies of microsomal glutathione S-transferase 1 without the confounding effects of clonal selection.
The parental Raji cell line is an EBV-positive Burkitt??s lymphoma B lymphocyte model widely used to study B cell biology, lymphomagenesis, and immune signaling. These cells exhibit rapid proliferation and maintain mature B cell features, providing a relevant background for investigating glutathione metabolism, inflammatory mediator production, and oncogenic pathways within a lymphoblastoid context.
MGST1 encodes a membrane-bound glutathione transferase that catalyzes conjugation of reduced glutathione to electrophilic substrates. A key function is the conversion of leukotriene A4 to the pro-inflammatory leukotriene C4, a process facilitated by 5-lipoxygenase-activating protein and membrane lipids. Additionally, MGST1 detoxifies xenobiotics and lipid peroxidation products, contributing to oxidative stress defense and phase II detoxification. Its expression is transcriptionally activated by Nrf2 and the aryl hydrocarbon receptor under oxidative stress, and is modulated by TNF-?? and IL-1??. Downstream effects include leukotriene C4 production, reactive oxygen species scavenging, and glutathione conjugate efflux via MRPs, linking MGST1 to inflammatory signaling and chemoresistance.
In Raji B cells, MGST1 knockout impairs leukotriene C4 synthesis, potentially altering autocrine inflammatory loops and tumor microenvironment interactions. Loss of MGST1-dependent detoxification may increase sensitivity to oxidative stress and chemotherapeutics, providing a model to study chemoresistance in lymphoma. The EBV-positive background allows exploration of viral influences on MGST1 expression and MAPK pathway activation, shedding light on redox homeostasis and lipid mediator biosynthesis in B cell malignancy.
This polyclonal knockout cell population supports diverse assays, including Western blot, RT-qPCR, glutathione S-transferase activity, leukotriene C4 ELISA, and ROS detection. Drug sensitivity profiling combined with glutathione quantification assists in chemoresistance research. Transcriptomic analysis via RNA-seq and apoptosis assays further characterize MGST1-dependent networks. Applications cover cancer susceptibility, allergic inflammation, asthma, and oxidative stress disorders. For further information or to discuss your experimental requirements, please contact Ascent Research.
