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IL-1ß (Interleukin-1ß)

Analyte: Interleukin-1β
Specimen Type: Serum, EDTA Plasma
Optimum Volume: 1 mL
2-8°C -20°C -70°C
5d; unstable* 6 months 1 year
Reporting units: pg/mL
Method: ELISA
Biological or Clinical Significance:

Interleukin 1 (IL-1) includes two distinct proteins, IL-1α and IL-1β, that play central roles in acute and chronic inflammation, both locally and systemically. Human IL-1β is synthesized as a procytokine (269 amino acid) that is cleaved by IL-1β -converting enzyme to mature IL-1β (153 amino acid, 17 kDa) plus a prosegment.

IL-1β is produced primarily by monocytes and macrophages but also by astrocytes, oligodendroglia, adrenal cortical cells, NK cells, endothelial cells, keratinocytes, megakaryocytes, platelets, neurons, neutrophils, osteoblasts, Schwann cells, trophoblasts, T cells, and fibroblasts. The most extensively studied function of IL-1β is initiation of inflammation. Bacterial endotoxin or a variety of non-microbial inflammatory substances induces production of IL-1, which is released into the local environment.

IL-1 is associated with bone formation and remodeling, insulin secretion, appetite regulation, fever induction, neuronal phenotype development, and IGF/GH physiology.

Principle of Test Method:

The IL-1β assay is a solid-phase ELISA that employs the quantitative sandwich enzyme immunoassay principle.  *Note: Refrigerated stability is 5 days for serum and is limited/ustable for EDTA plasma.

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IL-1ß (Interleukin-1ß)
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