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Specific elisa kit

Manufactured by Thermo Fisher Scientific
Sourced in United States, United Kingdom

Thermo Fisher Scientific's Specific ELISA kits are laboratory tools designed for the detection and quantification of target analytes in biological samples. These kits employ the enzyme-linked immunosorbent assay (ELISA) technique to provide accurate and sensitive measurements. The core function of these kits is to enable researchers to measure the presence and concentration of specific proteins, hormones, or other molecules of interest in a variety of sample types.

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53 protocols using specific elisa kit

1

Cytokine Profiling in Tissues

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Tissue levels of TNF-α, IL-1β, IL-6, IL-4, IL-13, and IL-10 were measured using specific ELISA kits (all from eBioscience, San Diego, CA, USA).
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2

Cytokine Profiling of TLR-Stimulated Myeloid Cells

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BMDMs or BMDCs were stimulated with different ligands for TLRs: 100 ng/ml Pam3CSK4 (InvivoGen), 10 µg/ml poly(I:C) RNA (Sigma-Aldrich), 100 ng/ml LPS, 10 µg/ml R848 (InvivoGen), or 5 µM CpG-C DNA (ODN2395; InvivoGen) for 6 h. TNF, IL-12, or IFN-β protein levels in cell culture supernatants were then determined by specific ELISA kits (eBioscience) according to the manufacturer’s protocol. For the detection of intracellular cytokines, cells were stimulated with various TLR ligands in the presence of brefeldin A (eBioscience) for blockade of Golgi function. Cells were fixed with 4% paraformaldehyde in PBS, permeabilized with 0.1% saponin (eBioscience), and subjected to intracellular FACS staining using antibodies against TNF (BioLegend).
After stimulation of differentiated THP-1 cells with TLR ligands in the presence of brefeldin A, cells were surface stained with anti–human CD14 (BioLegend) followed by intracellular staining with anti–human TNF (BioLegend).
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3

Inflammatory Cytokines Measurement

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Inflammatory cytokines including tumor necrosis factor (TNF-α), interleukin-1β (IL-1β), and interleukin-6 (IL-6) were measured using specific ELISA kits (eBioscience, USA).
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4

Serum and BALF Antibody Measurement

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The serum and BALF antibodies, including IgE, IgG1 and IgG2a, were determined by using specific ELISA kits according to the manufacturer’s instruction (eBioscience, San Diego, CA, USA). Sera samples were assayed at a dilution of 1:200 for IgE analysis, 1:10000 for IgG1 analysis, and 1:100 for IgG2a analysis, and BALF samples were assayed at a dilution of 1:2 for IgE analysis, 1:50 for IgG1 analysis, and 1:1 for IgG2a analysis. Finally, the absorbance (OD) of the wells at 450 nm was read.
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5

Assess OprF-specific Immune Responses

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OprF-specific cellular immune responses were assessed 2 weeks after the immunization with AdC7OprF.RGD or AdC7Null. Mice splenocytes were isolated as a single-cell suspension and cultured in RPMI medium supplemented with 2% fetal bovine serum (HyClone, Logan, UT), 10 mM HEPES (pH 7.5; Biosource International, Camarillo, CA), and 10 μM β-mercaptoethanol (Sigma-Aldrich) in 96-well (Millipore) plates. The splenocytes were stimulated with 10 μg/ml OprF for 48 h and culture supernatants were collected. The mouse Interferon-γ (IFN-γ) and IL-4 were measured in the culture supernatant with specific ELISA kits (eBioscience).
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6

Serum and Nasal Cytokine Profile

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Serum OVA-specific immunoglobulin E (IgE), histamine and leukotrienes C4 (LTC4) levels were assayed using specific ELISA kit (BlueGene Biotech, Shanghai, China) and concentrations of IL-4, IL-9 and IL-17 in NLF or IL-6 and IL-8 in the cell culture supernatants were assayed with specific ELISA kits (eBioscience Inc., USA). Each sample was analyzed in triplicate.
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7

Quantification of Inflammatory Markers

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specific ELISA kits were used to measure the levels of S100A8, S100A9 (MyBioSource,
San Diego, CA, USA) and S100A8/A9 heterodimer (R&D Systems, Minneapolis, MN,
USA). Levels of TNFα and IL-10 were determined using specific ELISA kits
(eBioscience) according to the manufacturer’s instructions. Each sample was
run in duplicate.
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8

Cytokine quantitation in BMMC supernatants

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Supernatants for cytokine quantitation were collected 3 or 24 h after BMMCs stimulation. Supernatants were assessed for TNF-α, IL-6, IL-13, and IL-4 using specific ELISA kits (eBiosciences) according to manufacturer's instructions.
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9

Cytokine Quantification via ELISA

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Cytokine levels were determined using specific ELISA kits (eBioscience) according to the manufacturer’s instructions. Each sample was run in duplicate.
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10

Polyphenol-rich extracts modulate pro-inflammatory markers

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Cells were pre-incubated overnight in 24-well plates at a density of 37 × 103 cells/well. The day after, they were treated with H2O2 (200 μM), TNFα (5 ng/mL) or LPS (1 μg/mL) in the presence or not of each polyphenol-rich plant extract (25 μM GAE). After 24 h, cell culture media were collected and stored at −20°C until analysis. Levels of the pro-inflammatory markers IL-6, TNFα and MCP-1 were determined by using specific ELISA kits (eBioscience, UK) and normalized according to total cellular protein amounts determined by Bradford assay [32 (link)].
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