Transcription Response Assay Service
Creative Biolabs offers top-tier transcription response assay services to screen and quantify test compounds as agonists or antagonists against human nuclear factor of activated T-cells (NF-AT). Our meticulously designed NF-AT transcription response assay provides precise, reliable data using human T lymphocytic Jurkat cells transfected with a response element-β-galactosidase reporter. This enables comprehensive evaluation of potential therapeutic agents' impact on NF-AT-mediated transcriptional activation or inhibition, thereby advancing drug discovery and development projects aimed at modulating immune responses and facilitating the advancement of novel therapeutic agents targeting NF-AT-related pathways.
Transcription Factor Assay Principle
NF-AT is a pivotal transcription factor family essential for regulating gene expression in response to immune stimuli, particularly in T cells, playing significant roles in T cell activation and differentiation. Upon dephosphorylation by calcineurin, NF-AT translocates to the nucleus, influencing genes involved in immune responses, inflammation, and cell growth. Implicated in transplant rejection, autoimmune diseases, and cancer, NF-AT is a key therapeutic research target. Our assay employs human T lymphocytic Jurkat cells, transfected with an NF-AT-1 response element-β-galactosidase reporter construct. Upon activation, NF-AT binds the element, driving β-galactosidase expression, which is quantified using a fluorescein di-β-d-galactopyranoside (FDG)-based substrate as an indicator of NF-AT activity.
Targeted Solutions to Key Scientific Questions
Compound Efficacy and Potency
Precisely determine the EC50 (half maximal effective concentration) or IC50 (half maximal inhibitory concentration) of your test compounds against NF-AT activation. This quantitative data is essential for comparing candidates head-to-head and moving forward with confidence.
Mechanistic Classification
Classify compounds as clear agonists (enhancing transcription) or antagonists (inhibiting transcription) within a human T-cell context. This functional grouping immediately informs the downstream development strategy.
Selectivity Profile
Provide initial insights into compound selectivity by measuring functional activity against a pivotal immune regulator. Understanding the functional profile early mitigates costly failures later in the pipeline.
Contact our specialist team today to discuss your specific targets, assay customization needs, and receive a detailed quote.
Workflow
Our comprehensive, visualizable workflow is designed for maximum clarity and efficiency, ensuring a rapid turnaround of high-quality data.
Why Choose Us?
Creative Biolabs stands apart with 20+ years of dedicated experience and a commitment to proven, cutting-edge reporter technology. Our platform, focused on the NF-AT pathway, provides a reliable early-stage functional readout critical for immunomodulation projects. We offer a physiologically relevant model using human T lymphocytic Jurkat cells, ensuring direct translatability to human immune responses and minimizing irrelevant in vitro findings. The optimized β-galactosidase reporter system provides a high dynamic range with a superior signal-to-noise ratio for accurate potency determination, even for low-abundance hits. Our decade-spanning expertise in immune signaling pathways guarantees expert assay design and interpretation, rapidly overcoming technical hurdles in your project.
Contact us today to discuss your project and discover how our expertise can accelerate your path to discovery.
FAQs
Can this assay be adapted for transcription factors other than NF-AT?
Absolutely. While we specialize in the NF-AT assay, our core expertise lies in reporter system engineering. We can adapt this robust platform to measure the response of other key transcription factors, such as AP-1 or NF-κB, based on your project's specific needs.
Our compounds are slightly cytotoxic. Can your assay differentiate between true inhibition and cell death?
This is a critical concern we address. Every assay run includes parallel cytotoxicity measurements alongside the NF-AT response. This co-measurement allows us to confidently distinguish between non-specific toxicity and specific transcriptional inhibition.
How does this service compare to a traditional ELISA for cytokine measurement?
Our transcription response assay measures the initial command (gene activation). This provides a faster, higher-throughput, and more direct readout of the compound's effect on the core signaling pathway before protein translation occurs.
Customer Reviews
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Potency Determination
Using Creative Biolabs' service in our research has significantly improved the robustness of our lead selection process. The highly sensitive readout allowed us to confirm the precise IC50 of our lead antagonist - Dr. K***en T -
Mechanistic Insight
The NF-AT reporter system provided the definitive mechanistic classification we required. We initially thought our compound was targeting a kinase, but the clear transcription inhibition data strongly pointed toward the calcineurin-NF-AT axis. - Sarah M***a W
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Creative Biolabs' transcription response assay service, centered on the critical NF-AT pathway, is your essential partner for high-throughput screening and functional validation in immunomodulation. We deliver precise, actionable data that accelerates your transition from hit compound to clinical candidate. Leverage our two decades of scientific excellence to secure the confidence required for your next research milestone.
Contact Our Team for More Information and to Discuss Your Project
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