Description
Mouse CXCL1 is a small peptide chemokine of 8 kDa that belongs to the CXC subfamily. It is also called growth-regulated oncogene-α (GRO-α) and keratinocyte-derived chemokine (KC). It is expressed in neutrophils, macrophages, and epithelial cells. CXCL1 produces its effect via its receptor CXCR2, mainly expressed on neutrophils. Although CXCL1 plays an important role in inflammatory responses by recruiting and activating neutrophils, aberrant expression of CXCL1 has been reported as being associated with the growth and progression of certain tumors such as breast, lung, and gastric cancers.
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
Reliable 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 reliable, 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, triggering a cascade of energy transfer in the Acceptor beads. This results in a sharp peak of light emission at 615 nm.
Principle of the AlphaLISA Mouse CXCL1 assay
The AlphaLISA Mouse CXCL1 assay is based on an AlphaLISA sandwich immunoassay involving a biotinylated anti-target antibody bound to Streptavidin-coated AlphaLISA Donor beads and an anti-target antibody conjugated to AlphaLISA Acceptor beads. In the presence of the target, both antibodies bind to CXCL1 and the beads come into proximity. The excitation of the Donor beads provokes the release of singlet oxygen molecules, triggering a cascade of energy transfer within the Acceptor beads. This results in emission with λmax at 615 nm. The intensity of the signal is directly proportional to the concentration of CXCL1 present in the sample.
Protocol of the AlphaLISA Mouse CXCL1 assay
The AlphaLISA CXCL1 assay can be run in a 96- or 384-well detection plate (50 µL final). As described here, samples or standards are dispensed directly into the assay plate for the detection of mCXCL1 by AlphaLISA reagents. No washing steps are necessary. The protocol can be further miniaturized or upscaled by simply resizing each addition volume proportionally.
Validation of AlphaLISA mouse CXCL1 detection kit on NIH-3T3 cell supernatant
NIH-3T3 murine fibroblast cells were plated in a 96-well culture plate at serial densities ranging from 200k cells/well to 12.5k cells/well in DMEM medium with 10% FBS for 24h at 37°C. Then 5 µL of supernatant were transferred into an AlphaPlate-384 to measure the concentration of secreted CXCL1. The standard curve was prepared in DMEM medium + 10% FBS. All other assay components were diluted in AlphaLISA Assay Buffer 1 and added to the wells using the kit protocol. AlphaLISA counts were measured, and the CXCL1 concentration in each supernatant sample was interpolated from the standard curve.
Validation of AlphaLISA mouse CXCL1 detection kit on LPS treated NIH-3T3 cells
NIH-3T3 cells were plated in a 96-well culture-treated plate at a density of 12.5k cells per well and allowed to adhere in complete DMEM+10%FBS culture medium for 24h at 37°C. Subsequently, the cells were exposed to increasing concentrations of LPS for 3h at 37°C, 5% CO2. Following treatment, 5 µL of supernatant were transferred into an AlphaPlate-384 to measure the concentration of secreted CXCL1. The standard curve was prepared in DMEM +10% FBS. All other assay components were diluted in AlphaLISA Assay Buffer 1 and added to the wells using the kit protocol. AlphaLISA counts were measured, and the CXCL1 concentration in each supernatant sample was interpolated from the standard curve.
