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HEK-Blue™ hDectin-1a Cells

HEK-Blue™ hDectin-1a Cells Unit size Cat. code Docs Qty Price
SEAP Reporter 293 cells expressing the human Dectin-1a gene
3-7 x 10e6 cells
hkb-hdect1a
+-
$1,182.00

SEAP Reporter 293 cells expressing the human Dectin-1a gene

HEK-Blue™ hDectin-1a cells have been engineered to express a secreted alkaline phosphatase (SEAP) in response to stimulation by Dectin-1 ligands

Dectin-1 is a C-type lectin receptor (CLR) that recognizes β-glucans, glucose polymers found in the cell walls of fungi, and thus plays an important role in antifungal innate immunity. Dectin-1 is alternatively spliced into 2 major isoforms: a full-length A isoform and a ‘stalkless’ B isoform, which do not induce the same response to soluble and particulate β-glucans [1].

HEK-Blue™ hDectin-1a cells are derived from the human embryonic kidney HEK293 cells which do not naturally express Dectin-1. We have engineered HEK-Blue™ cells that stably express high levels of human Dectin-1a isoform and genes involved in the Dectin-1/NF-κB/SEAP signaling pathway. Levels of SEAP are readily measurable in real-time by a simple colorimetric assay with HEK-Blue™ Detection or QUANTI-Blue™ . In contrast to cells expressing the human Dectin‑1b gene, HEK‑Blue™ hDectin‑1a cells respond to soluble β-glucans, such as laminarin and WGP soluble.

To identify Dectin-1-specific responses, we recommend to use HEK-Blue™ Null1-v cells as a control cell line.

 

Read our review on Dectin-1 & β-glucans.

Read our review on Dectin-1 & inflammasomes.

 

Reference:

1. Heinsbroek S.E. et al., 2006. C-type Lectin Receptor: Old Friend and New Player. Med Chem. 2017;13(6):536-543. 

 

Figures

Evaluation of NF-κB responses to Dectin-1 ligands
Evaluation of NF-κB responses to Dectin-1 ligands

NF-κB responses of HEK-Blue™ hDectin-1a and -1b and HEK-Blue™ Null I-v cells (control cell line) to Dectin-1 ligands. Cells were incubated with particulate ligands such as Zymozan (10 μg/ml), WGP dispersible (100 μg/ml) and HKCA (3 x106 cells/ml), or soluble ligands such as Laminarin (100 μg/ml),WGP soluble (10 μg/ml) or TDB (10 μg/ml). TNF-α (10 ng/ml) was used as a positive control. After 24h, SEAP activity was assessed in the supernatant using QUANTI-Blue™, by reading the optical density (OD) at 630 nm.

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Specifications

Required Selective Antibiotics: Puromycin and HEK-Blue™ CLR Selection

Growth medium: DMEM (4.5 g/l glucose), 10% (v/v) fetal bovine serum (FBS), 50 U/ml penicillin, 50 µg/ml streptomycin, 100 µg/ml Normocin™, 2 mM L-glutamine

Quality Control:

  • HEK-BluehDectin-1a cells have been stimulated by various pathogen recognition receptor (PRR) agonists. As expected, only Dectin-1 agonists induced the production of SEAP.
  • The cell surface expression of human Dectin-1a (hDectin-1a) in this cell line has been validated using fluorescence-activated cell sorting (FACS).
  • The stability of this cell line for 20 passages following thawing has been verified.
  • These cells are guaranteed mycoplasma-free.
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Contents

  • 1 vial containing 3-7 x 106 cells
  • 100 μl puromycin (10 mg/ml).
  • 2 x 1 ml HEK-Blue™ CLR Selection (250x concentrate), a solution containing several selection antibiotics
  • 1 ml Normocin™ (50 mg/ml), a formulation of three antibiotics active against mycoplasmas, bacteria and fungi
  • 1 pouch of HEK-Blue™ Detection , a cell culture medium (50 ml) for real‑time detection of SEAP

HEK-Blue™ hDectin-1a Cells are shipped on dry ice (Europe, USA & Canada)

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