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Human il 1β

Manufactured by Thermo Fisher Scientific
Sourced in United States

The Human IL-1β is a laboratory reagent that can be used to measure the levels of interleukin-1 beta (IL-1β) in human samples. IL-1β is a pro-inflammatory cytokine that plays a key role in the immune response and inflammatory processes. This product can be used in various research and diagnostic applications that require the quantification of IL-1β in biological samples.

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47 protocols using human il 1β

1

Purification of Recombinant Human TNF

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Lidocaine, tetrodotoxin (TTX) (Sigma-Aldrich) and human IL-1β (eBiosciences) were purchased. Recombinant and tag-free human TNF was produced in-house. Following expression in Escherichia coli, TNF was purified using a cation exchange column and endotoxins removed by phase separation with Triton X-114.
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2

Cytokine Release Quantification in THP-1 and PBMCs

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Following gene silencing or drug treatment, THP-1 cells or PBMCs were counted, normalized and divided into 96-well plates prior to treatment. Cells were stimulated with LPS or Pam3CSK4 for up to 6 h. Cytokine release was quantified from clarified culture supernatant using either human IL-1β (eBioscience, 88-7261) or human TNF (eBioscience, 88-7346) ELISA kits according to the manufacturer's protocol. Each experiment was replicated and performed in triplicate.
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3

ELISA Quantification of IL-1β

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IL-1β release was measured by ELISA for mouseIL-1β (R&D Systems) or human IL-1β (eBiosciences) following the manufacturer’s instructions and read in a Synergy Mx plate reader (BioTek). The concentration of IL-1β was estimated using a standard with known concentrations of recombinant IL-1β.
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4

Quantitative Cytokine and Chemokine Assays

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Human IL-1β, human TNF-α, rat TNF-α, mouse IL-1β, and TNF-α (all from eBioscience), human CCL2, mouse CRP (both R&D Systems), and CD154 (Boster Bio) were measured using ELISA.
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5

Cytokine Quantification in Cell Culture and Sera

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Cell culture supernatants and mouse sera were assayed for human IL-1β (eBioscience), human IL-18 (R&D Systems), and mouse IL-1β (eBioscience), respectively. Colon organ culture supernatants were assayed for mouse IL-18 (R&D Systems).
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6

Primed THP-1 Cells Inflammasome Activation

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Primed THP-1 cells were treated for 45 min with the indicated inhibitor in Opti-MEM medium (Life Technology) prior to activation by 5 mM ATP, 1 μM nigericin, 500 μg/ml MSU crystals, 5 μg/ml Poly(dA:dT)/LyoVec™ (Invivogen) or 3 μg FLA-PA (transfected with ViaFect) for 6 h (MSU crystals were a kind gift of Dr. A. Scanu, University of Padova). Culture supernatants were tested for the production of IL-1β or caspase-1 by enzyme immunoassay (Human IL-1β, eBioscience, San Diego, CA, USA and Caspase-1, Quantikine; R&D Systems, Minneapolis, MN, USA).
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7

Cytokine Concentration Measurement

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Supernatants were used to measure concentrations of human IL-1β and human TNF-α (eBioscience).
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8

Cytokine Assay of Cell Samples

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Supernatants from cell culture, serum and tissue were assayed for mouse IL-1β, TNF-α, IL-6 and human IL-1β (eBioscience) according to manufacturer’s instructions.
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9

Cytokine Profiling of Cell Cultures

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Cytokine concentration in culture supernatant was measured by commercial ELISA kits: human IL-1β (ebioscience), human TNF-α, IL-18, and IFN-γ, IL-17A (R&D systems), and murine IL-1β, TNF-α (R&D systems) according to manufacturer’s instructions. IL-6, MCP-1, IL-8, IL-18 and IFN-γ from human PBMCs were measured by LEGENDplex™ Human Inflammation Panel (Biolegend) according to manufacturer’s instructions.
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10

Cytokine and Enzyme Activity Assays

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All biochemical analysis methods are described in detail in Supplemental Information. Cytokine secretion was measured by Multiplex (Figure 3A, B IL-1β, TNFα from Life Technologies) or ELISA (human IL-1β from eBioscience 88-7261-22; S100A8 from Thermo EHS100A8) according to manufacturers’ protocols. Elastase (ab118971) and Cathepsin G (ab204693) enzymatic activity were assessed using kits (Abcam) according to manufacturer’s instructions.
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