HEK-Dual™ hTLR3

HEK-Dual™ hTLR3 (NF/IL8) Unit size Cat. code Docs Qty Price
Double readout TLR cells
3-7 x 10e6 cells

You may also need : HEK-Dual™ Null | View more associated products

Human TLR3 (NF-κB-SEAP / KI-[IL-8]Lucia) dual-reporter HEK293 cells

HEK-Dual™ hTLR3 (NF/IL8) cells were generated from HEK-Dual™ Null cells by stable transfection of the human TLR3 (hTLR3) gene. Due to the knockout of TLR5, these cells enable the study of hTLR3 signaling without interference from other TLRs.

They respond to very low concentrations of TLR3 agonists such as poly(I:C) a synthetic analog of double-stranded RNA. They do not respond to other TLR agonists or to the cytokine TNF-α (see validation sheet).

HEK-Dual™ hTLR3 (NF/IL8) cells are resistant to hygromycin B, Zeocin® and blasticidin. They should be maintained in growth medium supplemented with hygromycin B and Zeocin®.



1. Ohta K. et al., 2014. TLR-mediated interleukin-8 production by human submandibular gland epithelial cells. Mol Med Rep. 10(5):2377-82.
2. Roebuck KA. et al., 1999. Regulation of interleukin-8 gene expression. J Interferon Cytokine Res. 19(5):429-38. 


Detection of the NF-kB response using QUANTI-Blue™
Detection of the NF-kB response using QUANTI-Blue™

Detection of the NF-kB response using QUANTI-Blue™. HEK-Dual™ hTLR3 (NF/IL8) and HEK-Blue™ hTLR3 cells were stimulated with various TLR agonists: Poly(I:C) HMW (TLR3 agonist; 100 ng/ml), Poly(I:C) LMW (TLR3 agonist; 100 ng/ml), Poly(A:U) (TLR3 agonist; 100 ng/ml), FLA-ST (flagellin from S. typhimurium, TLR5 agonist; 100 ng/ml), and TNF-α (10 ng/ml). The TLR5 and TNFR activites due to the endogenous expression of these receptors in HEK-Blue™ hTLR3 cells are shown in gray. After 24 hour incubation, NF‐kB-induced SEAP activity was assessed using QUANTI-Blue™ and reading the optical density (OD) at 655 nm.

Detection of the IL-8 response using QUANTI-Luc™
Detection of the IL-8 response using QUANTI-Luc™

Detection of the IL-8 response using QUANTI-Luc™. HEK-Dual™ hTLR3 (NF/IL8) cells were stimulated with TLR3 agonists: Poly(I:C) HMW (100 ng/ml), Poly(I:C) LMW (100 ng/ml) and Poly(A:U) (100 ng/ml). After 24 hour incubation, activation of the IL‐8 promoter was determined by measuring the relative light units (RLUs) in a luminometer using QUANTI-Luc™, a Lucia luciferase detection reagent. The activation of the IL‐8 promoter is expressed as fold increase relative to untreated cells which was calculated by dividing the RLUs for the treated cells by the RLUs for the untreated cells.

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Antibiotic resistance: blasticidin, hygromycin, Zeocin®

Growth medium: DMEM, 4.5 g/l glucose, 2 mM L-glutamine, 10% (v/v) heat-inactivated fetal bovine serum, 100 U/ml penicillin, 100 μg/ml streptomycin, 100 μg/ml Normocin™

Guaranteed mycoplasma-free


These cells are covered by a Limited Use License (See Terms and Conditions).

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Dry ice shipping Shipped on dry ice (Europe, USA, Canada, and some areas in Asia)

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EC50 values calculated for the NF-kB response using QUANTI-BlueHEK-Dual™ hTLR3 (NF/IL8) and HEK-Blue™ hTLR3 cells were stimulated for 24 hours with various TLR3 agonists: Poly(I:C) HMW, Poly(I:C) LMW and Poly(A:U).

Cell line EC50 for Poly(I:C) HMW (ng/ml) EC50 for Poly(I:C) HMW (ng/ml) EC50 for Poly(A:U) (ng/ml)
HEK-Dual™ hTLR3 (NF/IL8) 28.9 ± 17.7 59.4 ± 35.3 53.6 ± 22.9
HEK‑Blue™ hTLR3 77.6 ± 29.0 163.8 ± 99.9 218.5 ± 82.7
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