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AlphaLISA High Performance Biotin-Free Human IL-6 Detection Kit, 100 Assay Points

The AlphaLISA™ HP Biotin-Free Human IL-6 kit is designed for the simple and rapid quantification of soluble IL-6 in cell supernatants and serum samples, offering a fast no-wash alternative to traditional wash-based ELISA.  This kit is a new and improved version of the AL3025 kit.

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Feature Specification
Protocol Time 1.5h at RT
Sample Volume 10 µL

The AlphaLISA™ HP Biotin-Free Human IL-6 kit is designed for the simple and rapid quantification of soluble IL-6 in cell supernatants and serum samples, offering a fast no-wash alternative to traditional wash-based ELISA.  This kit is a new and improved version of the AL3025 kit.

Click to copy promo code to clipboard.
img-icon-10-off-white-yellow.svg

SAVE 10% on your first Revvity.com order. Use promo code below.

HELLO10

Terms and conditions apply.

Product Variants
Unit Size: 100 assay points
Part #:
AL3203HV
List Price
USD 681.00
Your online price:
Unit Size: 500 assay points
Part #:
AL3203C
List Price
USD 2,255.00
Your online price:
Unit Size: 5,000 assay points
Part #:
AL3203F
List Price
USD 14,900.00
Your online price:
For research use only. Not for use in diagnostic procedures. All products to be used in accordance with applicable laws and regulations including without limitation, consumption, and disposal requirements under European REACH regulations (EC 1907/2006).

Overview

IL-6 is a pro-inflammatory cytokine involved in acute-phase reaction, inflammation, and cancer progression. Secreted by T cells, macrophages, and fibroblasts, it induces B and T cell proliferation. It is being studied in a wide variety of research areas including diabetes, Alzheimer's disease, depression, and several cancers. Along with TGF beta, IL-6 is main promoter of T cell differentiation into TH17, a new component of immuno-oncology.

AlphaLISA assays may have sufficient sensitivity to enable detection of low levels of analytes in serum or plasma.

Formats

  • Our 100 assay point kit allows you to run 100 wells in 96-well format, using a 100 µL reaction volume (10 µL of sample).
  • Our 500 assay point kit allows you to run 500 wells in 96-well or 384-well format, using a 50 µL reaction volume (5 µL of sample).
  • Our 5,000 assay point kit allows you to run 5,000 wells in 96-well or 384-well format, using a 50 µL reaction volume (5 µL of sample).

Features

  • No-wash steps, no separation steps
  • ELISA alternative technology
  • Sensitive detection
  • Broad sample compatibility
  • Small sample volume
  • Results in less than 3 hours

AlphaLISA technology allows the detection of molecules of interest in a no-wash, highly sensitive, quantitative assay. In an AlphaLISA assay, a biotinylated anti-analyte antibody binds to the Streptavidin-coated Donor beads while another anti-analyte antibody is conjugated to AlphaLISA Acceptor beads. In the presence of the analyte, the beads come into close proximity. The excitation of the Donor beads causes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in a sharp peak of light emission at 615 nm.

Specifications

Automation Compatible
Yes
Brand
AlphaLISA
Detection Modality
Alpha
Protocol Time
1.5h at RT
Sample Volume
10 µL
Shipping Conditions
Shipped in Blue Ice
Target
IL-6
Target Class
Cytokines
Target Species
Human
Technology
Alpha
Therapeutic Area
Inflammation
Unit Size
100 assay points

How it works

Principle of the AlphaLISA HP biotin-free human IL-6 assay

The AlphaLISA HP Biotin-Free IL-6 assay is based on an AlphaLISA sandwich immunoassay involving a digoxigenin anti-IL-6 antibody bound to anti-DIG AlphaLISA Donor beads and an anti-IL-6 antibody conjugated to AlphaLISA Acceptor beads. Both antibodies are directed against the IL-6 protein. In the presence of the target, both antibodies bind to IL-6 and the beads come into proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules that triggers a cascade of energy transfer within the Acceptor beads, resulting in emission with λmax at 615 nm. The intensity of the signal is directly proportional to the concentration of IL-6 present in the sample.

img-alphalisa-il-6-biotin-free-al3203-schematic
Protocol of the AlphaLISA HP biotin-free human IL-6 assay

The AlphaLISA HP Biotin-Free Human IL-6 assay can be run in a 96- or 384-well detection plate (50 µL final). As described here, samples (cell supernatants or serum ) or standards are dispensed directly into the assay plate for the detection of IL-6 by AlphaLISA reagents. No washing steps are needed. The protocol can be further miniaturized or upscaled by simply resizing each addition volume proportionally.

img-protocol-alphalisa-2-step-dig

Assay details

Biotin-free Human IL-6 Assay details
Time to result 1.5 hours at RT
Kit component Lyophilized IL-6 analyte, Anti-DIG Donor Beads, Digoxigenin anti-IL-6, anti-IL-6 conjugated Acceptor Beads, IAB Assay Buffer
Species Human only
LDL 1.4 pg/mL
LLOQ 8.0 pg/mL
Dynamic Range 0.1-30,000 pg/mL
Calibration 1 unit (IU) of standard NIBSC (21/308) /WHO is equivalent to 0.37 pg of AlphaLISA hIL6

Analytical performance

Intra-assay precision table

Each of the 3 samples was measured 24 times, and the % CV was calculated for each sample. Samples were PBMC supernatants.

Sample [hIL-6] (pg/mL) CV
1 1829 3.8%
2 1023 3.7%
3 169 5.4%
Mean CV 4.3%
Inter-assay precision table

Each of the samples was measured in 3 independent experiments (3 days), and the % CV was calculated for each sample. Samples were PBMC supernatants.

Sample [hIL6] (pg/mL) CV
1 1,370 13%
2 1,100 13%
3 160 12%
Mean CV 13%
Spike and recovery table

Each of the samples was measured in 3 independent experiments (3 days), and the % CV was calculated for each sample. Samples were PBMC supernatants.

Spiked hIL-6 (pg/mL) DMEM+10% FBS RPMI+10% FBS 100% FBS
200 105% 102% 100%
400 99% 99% 99%
600 99% 104% 100%
Dilutional linearity table

Each of the samples was measured in 3 independent experiments (3 days), and the % CV was calculated for each sample. Samples were PBMC supernatants.

Sample dilution factor (x) Expected IL-6 (pg/mL) Observed IL-6 (pg/mL) Dilution Recovery (%)
neat 198 198 100%
1/2 99 104 95%
1/4 50 49 102%
1/8 25 26 94%
1/16 12 14 91%

Assay validation

Reference standard endotoxin (RSE) with AlphaLISA HP IL6 Biotin Free detection on MonoMac6 cells

MonoMac6 (MM6) cells were plated at 10,000 per well (RPMI, 2% FBS) and stimulated with increasing concentrations of Reference standard endotoxin (RSE) at 37°C, 5%CO2. After 24h stimulation, the cell supernatant was collected and 5 µL of each samples were transferred into an AlphaPlate-384 to measure each sample. A standard curve prepared in RPMI, 2% FBS was used to interpolate the amount of IL-6 secreted in each sample.

  Concentration (IU/mL)
LLD 0.041
LLOQ 0.210
Endotoxin standard curve
IL-6 Quantification in Samples

Resources

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