iLite® TNF-alpha Assay Ready Cells

BM3044

This iLite® TNF-α assay delivers reproducible, cell-based quantification of TNF-α bioactivity. It is ideal for functional testing of anti-TNF therapeutics and mechanism-of-action studies.

  • 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 Assay Ready Cells

Product Overview

iLite® TNF-alpha 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.

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. The iLite® TNF-alpha Assay Ready Cells also provide a means of directly comparing a biosimilar and innovator product in the same assay.

The iLite TNF-alpha cells are engineered cells for use in a normalized reporter gene bioassay for screening of anti-TNF alpha activity in samples. The assay is a simple and easy test format which detects anti-TNF alpha activity and, indirectly, the presence of anti-drug antibodies.

iLite TNF-alpha cells are a genetically engineered reporter gene cell line of human origin (K562), responsive to tumor necrosis factor alpha (TNF-alpha), resulting in the specific expression of Firefly Luciferase. Normalization of cell counts and serum matrix effects is obtained by a second reporter gene, a Renilla Luciferase reporter gene construct, under control of a constitutive promotor.

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?

1.5 mL of Assay Ready Cells suspended in RPMI 1640 with 20% heat inactivated fetal bovine serum (FBS), 10% glycerol and 2.5% dimethyl sulfoxide (DMSO).

Specifications

Product code BM3044
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

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