The ITPRIP Knockout Jurkat Polyclonal Cells product constitutes a polyclonal population of Jurkat T lymphoblasts generated through CRISPR/Cas9-mediated disruption of the ITPRIP gene. This loss-of-function model avoids clonal selection artifacts, providing a heterogeneous knockout background suitable for bulk functional analyses. The polyclonal format enables robust assessment of ITPRIP-dependent phenotypes while mitigating clonal variability inherent in single-cell-derived knockouts.
The Jurkat cell line, originally isolated from a patient with acute T lymphoblastic leukemia, serves as a well-characterized model for TCR signaling, apoptosis, and leukemic transformation. These cells exhibit rapid calcium mobilization upon TCR engagement, coupled with efficient activation of NFAT and other transcription factors. The leukemic origin and intact TCR-proximal machinery make Jurkat cells an appropriate host for interrogating calcium-dependent signaling networks relevant to T-cell malignancies and autoimmune disorders.
ITPRIP encodes an IP3 receptor-interacting protein that directly binds ITPR1 and modulates calcium release from the endoplasmic reticulum. Functioning downstream of TCR activation and IP3 production, ITPRIP acts as a regulatory node in calcium signaling, with documented interactions with DAPK1 to influence apoptotic pathways. Disruption of ITPRIP is predicted to alter IP3R-mediated calcium flux, thereby affecting calmodulin/calcineurin-dependent NFAT dephosphorylation and nuclear translocation. Consequently, ITPRIP knockout likely impacts transcriptional programs governing T-cell activation, cytokine expression, and DAPK1-mediated caspase-3 activation, linking calcium dynamics to cell death decisions.
In the Jurkat context, ITPRIP knockout provides a unique tool to dissect the intersection of calcium signaling and apoptosis regulation. The model is expected to exhibit attenuated TCR-induced calcium oscillations, reduced NFAT transcriptional activity, and altered sensitivity to apoptotic stimuli. Given the implications of ITPRIP in leukemic T-cell biology, this knockout model facilitates exploration of ITPRIP contributions to oncogenic signaling and potential therapeutic vulnerabilities in T-cell acute lymphoblastic leukemia.
These polyclonal knockout cells support diverse assay platforms, including Fura-2-based calcium flux measurements for real-time IP3R activity, NFAT-luciferase reporter assays for transcriptional readouts, and flow cytometric quantification of apoptosis markers and NFAT translocation. Complementary techniques such as Western blotting, RT-qPCR, co-immunoprecipitation with IP3R and DAPK1, and phospho-signaling arrays enable detailed molecular characterization. Additionally, the cells are amenable to drug sensitivity screens to identify modulators of calcium-dependent or apoptotic pathways. For further information, contact Ascent Research.
