iLite® TNF-alpha Xcel Assay Ready Cells

BM4044

Pre-qualified and assay-ready, iLite® TNF-α Xcel Cells provide rapid and sensitive detection of TNF-α activity – streamlining workflows for potency testing and neutralization assays.

  • High sensitivity and large dynamic range
  • "Assay-ready" format for rapid and convenient use
  • Reproducible and biologically relevant results
  • Reduced assay variability and higher reproducibility compared to cells in culture
  • Normalization of cell counts and serum matrix effects using a second reporter gene
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iLite® TNF-alpha Xcel Assay Ready Cells

Product Overview

iLite® TNF-alpha Xcel Assay Ready Cells provide a means of directly quantifying both the potency and neutralizing antibody response to TNF-alpha antagonists of diverse structure in the same assay, making it an outstanding tool for biosimilar development. The assay is a simple and easy test format which detects anti-TNF alpha activity and, indirectly, the presence of anti-drug antibodies.

Measuring the functional activity of TNF-alpha, the assay can be used for both potency and immunogenicity assessments of TNF-alpha inhibitors in the same assay and the iLite TNF-alpha Xcel Assay Ready Cells also provide a means of directly comparing a biosimilar and innovator product in the same assay.

iLite® TNF-alpha Xcel Assay Ready Cellsare engineered cells for use in a normalized reporter gene bioassay for screening of anti-TNF alpha activity in samples, resulting in a proportional expression of Firefly Luciferase. Binding of TNF-alpha to its receptor results in activation of the NFkB regulated Firefly luciferase reporter gene construct. iLite® TNF-alpha Xcel Assay Ready Cells also contain the Renilla Luciferase reporter gene, under the control of a constitutive promoter.

 

FOR RESEARCH USE ONLY

How it works

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The function of iLite assays

iLite cells have receptors on the cell surface that can bind to the marker under study.

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The function of iLite assays

Upon binding of the marker to its receptor, a signaling path activates the production of luciferase from a reporter gene.

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The function of iLite assays

Following cell lysis and the addition of a substrate, the luciferase is measured using a luminometer.

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The function of iLite assays

iLite cells contain a secondary Renilla luciferase gene that is constitutively expressed and is used for normalization.

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What's in the box?

>250 µL of iLite® Assay Ready Cells suspended in cryoprotective medium from Gibco (cat no 12648-010).

Specifications

Product code BM4044
Assay target TNF-alpha
Size 1 vial corresponding to one 96 well plate
Technology Cell-based reporter gene assay
Detection system Luminescence
Regulatory status Research Use Only
Assay time 3,5-4h