Standard curve
Example of IFN-β standard curve in Assay Diluent .
Product Details
Product Details
Product Specification
| Antigen | IFN-β |
| Reactivity | Human |
| Stability & Storage | 12 months from date of receipt / reconstitution, 2 to 8°C as supplied. |
Kit
| Precision | Intra-assay: <10%; Inter-assay: <15% |
| Sample type | Serum; Plasma; Cell culture supernatant |
| Assay type | Sandwich (quantitative) |
| Sensitivity | <5 pg/mL |
| Range | 4.29pg/mL-50000pg/mL |
| Recovery | Plasma: 80%-120% Serum: 70%-130% Cell culture supernatant: 70%-130% |
| Assay time | 70 minutes |
| Species reactivity | Human |
Background
Human Interferon Beta (IFNβ) is a naturally occurring cytokine belonging to the type I interferon family, primarily produced by fibroblasts and immune cells in response to viral infections or other inflammatory stimuli. It plays a critical role in the innate immune response by binding to the IFNα/β receptor (IFNAR), activating the JAK-STAT signaling pathway, and inducing the expression of interferon-stimulated genes (ISGs). These genes exert broad antiviral, immunomodulatory, and antiproliferative effects. IFNβ has been widely utilized as a therapeutic agent, particularly in the treatment of relapsing-remitting multiple sclerosis (MS), where it helps reduce inflammation and modulate immune activity. Recombinant forms of IFNβ (e.g., IFNβ-1a and IFNβ-1b) are clinically approved and demonstrate efficacy in decreasing relapse rates and slowing disease progression. Key functions of IFNβ include: Antiviral Activity: Enhances cellular resistance to viral infections. Immunoregulation: Suppresses pro-inflammatory cytokines (e.g., TNFα, IL-12) and promotes anti-inflammatory responses. Antiproliferative Effects: Inhibits the growth of certain tumor cells.
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Luminex
Quantifiction of human PBMC
Stimulated sample: Human peripheral blood mononuclear cells (PBMCs) were stimulated with CD3、PMA、PHA、LPS、Poly(I:C), and the average concentration of IFN-β in the supernatant was measured to be 15.34 pg/mL.
Unstimulated sample: Human PBMCs were cultured for 24h, and the average concentration of IFN-β in the supernatant was measured to be 10.47 pg/mL.
Recovery
Within the detection range, the combined cytokine proteins were added to serum,plasma,cell supernatant at high、low concentrations.The matrices used in these experiments were diluted 2-fold with the assay buffer before the addition of the cytokine proteins. The results were compared with those of samples that had the same concentration of cytokines added in the assay buffer.
Protocol Diagram
