Use at an assay dependent concentration. Can be paired for Sandwich ELISA with Rabbit monoclonal [PSH21-60] to Human Interferon alpha 2 antibody (Capture) (HA724227) and Recombinant Human Interferon alpha 2 protein (HA210644) as the standard. The reference range value is 39-5,000 pg/mL.
ELISA
Use at an assay dependent concentration.
Target
Function
Interferon alpha-2 is a protein that in humans is encoded by the IFNA2 gene. Human interferon alpha-2 (IFNα2) is a cytokine belonging to the family of type I IFNs. IFNα2 is a protein secreted by cells infected by a virus and acting on other cells to inhibit viral infection. Type I IFNs form a family of several proteins: in humans, there are 13 α subtypes, 1 β subtype, 1 ω subtype and other less studied subtypes (κ and ε). IFNα2 was the first subtype to be characterized in the early eighties. As a result, IFNα2 was widely used in basic research to elucidate biological activities, structure and mechanism of action of type I IFNs. IFNα2 was also the first IFN to be produced by the pharmaceutical industry for use as a drug. Thereby, IFNα2 is the best known type I IFN subtype. The properties of IFNα2 are widely shared by the other type I IFNs, although subtle differences exist.
Background References
1. Massarenti L et al. Interferon alpha-2 treatment reduces circulating neutrophil extracellular trap levels in myeloproliferative neoplasms. Br J Haematol. 2023 Jul
2. Ivanina A et al. The Topical Novel Formulations of Interferon alpha-2 Effectively Inhibit HSV-1 Keratitis in the Rabbit Eye Model and HSV-2 Genital Herpes in Mice. Viruses. 2024 Jun
Sandwich ELISA analysis of Human Interferon alpha 2 matched pair antibodies
Capture: HA724227, Human Interferon alpha 2 Rabbit mAb [PSH21-60] Detector: HA724228, Human Interferon alpha 2 Rabbit mAb [PSH21-61]
Elisa assay was performed by coating wells of a 96-well plate with 100 µl per well of capture antibody (HA724227) diluted in carbonate/bicarbonate buffer, at a concentration of 5ug/ml overnight at 4℃. Wells of the plate were washed, blocked with 150 µl 0.05% tween-20 1% BSA blocking buffer, and incubated with serial diluted Recombinant Human Interferon alpha 2 protein (HA210644) starting from 5,000 pg/ml to 0 pg/ml and detect antibody (HA724228, Biotin, 0.2 µg/ml) for 1 hour at 30℃ with shaking. Then the plate was washed and incubated with 100 µl per well of SA-HRP for 0.5 hour at 30℃ with shaking. Detection was performed using an Ultra TMB Substrate for 10 minutes at room temperature in the dark. The reaction was stopped with sulfuric acid and absorbances were read on a spectrophotometer at 450 nm.
Interpolated concentrations of spiked IFN alpha-2 in cell culture media samples.
Capture: HA724227, Human Interferon alpha 2 Rabbit mAb [PSH21-60] Detector: HA724228, Human Interferon alpha 2 Rabbit mAb [PSH21-61]
The concentrations of IFN alpha-2 were measured in duplicates, interpolated from the IFN alpha-2 standard curves and corrected for sample dilution. Diluted samples are as follows: 50% cell culture media with FBS. The interpolated dilution factor corrected values are plotted (mean +/- SD, n=2).
Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"