Mouse Chitinase 3-like 1 Quantikine ELISA Kit

  (5 citations)     
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Assay Procedure
Citations (5)
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  • Assay Type
    Solid Phase Sandwich ELISA
  • Format
    96-well strip plate
  • Assay Length
    4.5 hours
  • Sample Type & Volume Required Per Well
    Cell Culture Supernates (50 uL), Serum (10 uL), EDTA Plasma (10 uL), Heparin Plasma (10 uL)
  • Sensitivity
    16 pg/mL
  • Assay Range
    62.5 - 4,000 pg/mL (Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma)
  • Specificity
    Natural and recombinant mouse CHI3L1
  • Cross-reactivity
    < 0.5% cross-reactivity observed with available related molecules.< 50% cross-species reactivity observed with species tested.
  • Interference
    No significant interference observed with available related molecules.
Product Summary
The Quantikine Mouse CHI3L1 immunoassay is a 4.5 hour solid-phase ELISA designed to measure CHI3L1 in cell culture supernates, mouse serum, and plasma. It contains NS0-expressed recombinant mouse CHI3L1 and antibodies raised against the recombinant factor. This immunoassay has been shown to accurately quantitate the recombinant mouse CHI3L1. Results obtained using natural mouse CHI3L1 showed dose response curves that were parallel to the standard curves obtained using the Quantikine mouse kit standards. These results indicate that this kit can be used to determine relative mass values for natural mouse CHI3L1.

Precision
Intra-Assay Precision (Precision within an assay) Three samples of known concentration were tested on one plate to assess intra-assay precision
Inter-Assay Precision (Precision between assays) Three samples of known concentration were tested in separate assays to assess inter-assay precision
Cell Culture Supernates, Serum, EDTA Plasma, Heparin Plasma
Intra-Assay Precision Inter-Assay Precision
Sample 1 2 3 1 2 3
n 20 20 20 40 40 40
Mean 187 480 1533 205 511 1530
Standard Deviation 10.4 34.5 67.7 18.7 37.1 117
CV% 5.6 7.2 4.4 9.1 7.3 7.6

Recovery

The recovery of mouse CHI3L1 spiked to three levels throughout the range of the assay was evaluated.

Sample Type Average % Recovery Range %
Cell Culture Supernates (n=4) 99 88-107
Linearity
To assess the linearity of the assay, samples containing high concentrations of mouse CHI3L1 in each matrix were diluted with Calibrator Diluent and assayed.
 Chitinase 3-like 1 [HRP]
Product Datasheets

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Preparation and Storage
  • Storage
    Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Background: Chitinase 3-like 1
Chitinase 3-like 1 (CHI3L1), also called BRP39 in mouse or YKL-40 in humans, is a 39 kDa glycoprotein member of the glycosyl hydrolase 18 family although it does not show chitotriosidase activity. CHI3L1 is expressed by articular chondrocytes, synovial cells, activated monocyte-derived macrophages, neutrophils, endothelial cells, vascular smooth muscle cells, and some cancer cells. CHI3L1 binds to chitin and heparins, and it enhances cell adhesion, proliferation and tumor angiogenesis. Circulating CHI3L1 is elevated during inflammation and connective tissue remodeling such as arthritis, chronic obstructive pulmonary disease, diabetes, cardiovascular disease, inflammatory bowel disease, and liver cirrhosis. It is frequently upregulated in glioblastoma, myxoid chondrosarcoma, melanoma and carcinomas of the breast, thyroid, colon, lung, kidney, and ovary.
  • Entrez Gene IDs:
    1116 (Human); 12654 (Mouse)
  • Alternate Names:
    AW208766; Brp39; CHI3L1; Chitinase 3 like 1; Chitinase 3-like 1; gp39; HCgp39; YKL-40
Related Research Areas
Assay Procedure
Refer to the product for complete assay procedure.

Bring all reagents and samples to room temperature before use. It is recommended that all samples, standards, and controls be assayed in duplicate.
  1.   Prepare all reagents, standard dilutions, and samples as directed in the product insert.
  2.   Remove excess microplate strips from the plate frame, return them to the foil pouch containing the desiccant pack, and reseal.

  3. 50 µL Assay Diluent
  4.   Add 50 µL of Assay Diluent to each well.

  5. 50 µL Standard, Control, or Sample
  6.   Add 50 µL of Standard, Control, or sample to each well. Cover with a plate sealer, and incubate at room temperature for 2 hours.
  7.   Aspirate each well and wash, repeating the process 4 times for a total of 5 washes.

  8. 100 µL Conjugate
  9.   Add 100 µL of Conjugate to each well. Cover with a new plate sealer, and incubate at room temperature for 2 hours.
  10.   Aspirate and wash 5 times.

  11. 100 µL Substrate Solution
  12.   Add 100 µL Substrate Solution to each well. Incubate at room temperature for 30 minutes. PROTECT FROM LIGHT.

  13. 100 µL Stop Solution
  14.   Add 100 µL of Stop Solution to each well. Read at 450 nm within 30 minutes. Set wavelength correction to 540 nm or 570 nm.
Citations:

R&D Systems personnel manually curate a database that contains references using R&D Systems products. The data collected includes not only links to publications in PubMed, but also provides information about sample types, species, and experimental conditions.

5 Citations: Showing 1 - 5
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Species
Sample Type
  1. Stat3 downstream gene product chitinase 3-like 1 is a potential biomarker of inflammation-induced lung cancer in multiple mouse lung tumor models and humans.
    Authors: Yan, Cong, Ding, Xinchun, Wu, Lingyan, Yu, Menggang, Qu, Peng, Du, Hong
    PLoS ONE, 2013;8(4):e61984.
    Species: Mouse
    Sample Type: Serum
  2. Biomarkers of disease and treatment in murine and cynomolgus models of chronic asthma.
    Authors: Louten J, Mattson JD, Malinao MC, Li Y, Emson C, Vega F, Wardle RL, Van Scott MR, Fick RB, McClanahan TK, de Waal Malefyt R, Beaumont M
    Biomark Insights, 2012;7(0):87-104.
    Species: Mouse
    Sample Type: BALF
  3. Breast regression protein-39 (BRP-39) promotes dendritic cell maturation in vitro and enhances Th2 inflammation in murine model of asthma.
    Authors: Xu Q, Chai S, Qian Y, Zhang M, Wang K
    Acta Pharmacol Sin, 2012;33(12):1525-32.
    Species: Mouse
    Sample Type: Cell Culture Supernates
  4. Overexpression of chitinase 3-like 1/YKL-40 in lung-specific IL-18-transgenic mice, smokers and COPD.
    Authors: Sakazaki Y, Hoshino T, Takei S
    PLoS ONE, 2011;6(9):e24177.
    Species: Mouse
    Sample Type: Tissue Homogenates
  5. The chitinase-like protein YKL-40 modulates cystic fibrosis lung disease.
    Authors: Hector A, Kormann MS, Mack I, Latzin P, Casaulta C, Kieninger E, Zhou Z, Yildirim AÖ, Bohla A, Rieber N, Kappler M, Koller B, Eber E, Eickmeier O, Zielen S, Eickelberg O, Griese M, Mall MA, Hartl D
    PLoS ONE, 2011;6(9):e24399.
    Species: Mouse
    Sample Type: BALF

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