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CellSensor® irf1-bla Ba/F3 Cell Line

Catalog number: K1654

 Related applications: Pharma & Biopharma | Target & Lead Identification & Validation

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Description

Jak/Stat signaling pathways play essential roles in the cellular responses to distinct cytokines. One of the Jak/Stat pathways, Jak2/Stat5, mediates cell proliferation in response to Interleukin - 3 (IL - 3), prolactin, erythropoietin (Epo), and granulocyte - macrophage colony stimulating factor (GM - CSF). JAK2 gene knockout causes embryonic lethality due to defective erythropoiesis, suggesting that the Jak2/Stat5 pathway plays an important role in red blood cell formation. The recent discovery of an activating mutation in JAK2 (V617F) present in a high percentage of myeloproliferative disease (MPD) patients suggests that the Jak2/Stat5 pathway may be a potential therapeutic target for certain forms of MPD. The activated Stat5 transcription factor recognizes and binds to a specific palindromic DNA sequence found in the promoter region of β - casein, interferon regulatory factor - 1 (irf - 1), and a number of other genes. The CellSensor® irf1 - bla BA/F3 Cell Line contains a beta - lactamase reporter gene under control of the irf - 1 response element stably integrated into BA/F3 cells. This cell line is validated for EC50 and Z' - factor under optimized conditions using mouse IL - 3 (mIL - 3). This cell line has also been tested under variable experimental conditions, including DMSO concentration, cell number, stimulation time, and substrate loading time. Responsiveness to Jak Inhibitor 1, a small molecule inhibitor, was also tested. CellSensor® irf1 - bla BA/F3 cells were treated with mIL - 3 in triplicate over the indicated concentration range in a 384 - well format. Cells were incubated for 5 hrs with mIL - 3 agonist in 0.5% DMSO and then combined with LiveBLAzer™ - FRET B/G Substrate (CCF4 - AM) for 2.5 hrs. Fluorescence emission values at 460 nm and 530 nm were obtained using a standard fluorescence plate reader. The Response Ratios for each replicate were plotted against the indicated concentrations of mIL - 3. CellSensor ® irf1 - bla BA/F3 cells were treated with Jak Inhibitor 1 for 30 min over the indicated concentration range in a 384 - well format. Cells were then incubated with mIL - 3 agonist in 0.5% DMSO for 5 hrs and then combined with LiveBLAzer™ - FRET B/G Substrate (CCF4 - AM) for 2.5 hrs. Fluorescence emission values at 460 nm and 530 nm were obtained using a standard fluorescence plate reader. The emission ratios were plotted against the indicated concentrations of Jak Inhibitor 1. Academic and non-profit customers, please inquire for special pricing.
For Research Use Only. Not for use in diagnostic procedures.

Specifications

Cell State: Dividing Cells
Druggable Target: Cytokines, Signaling Pathway
Product Line: CellSensor®
Product Size: 1 vial
System: CellSensor™

Contents & storage

CellSensor® Cell Lines are shipped on dry ice. Store in liquid nitrogen immediately upon receipt, or thaw for immediate use.

Documents

Manuals & protocols