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产品参数（Product Specifications）
Assay TypeSandwich-ELISAAnalyteIL-15Format96T(8×12 strips)ReactivityHumanRegulatory StatusRUOSensitivity< 2 pg/mLStandard Curve Range2.34 pg/mL-150 pg/mLAssay Time2 hr 50 minSuitable Sample TypeFor the quantitative determination of human IL-15 in Cell Culture Supernatants, Plasma, Serum.Sample volume100 uL产品概述（Product Overview）
Human Interleukin-15 (IL-15) ELISA Kit (Residue Testing) is based on ELISA sandwich method and designed to detect and quantitative determine of GMP human IL-15 in samples from CAR-T product preparation processing. It contains GMP human IL-15 and a pair of antibodies against the recombinant factor, which are provided by ACROBiosystems. Results are obtained by four parameter logistic curve that were parallel to the standard curves obtained. The verification results indicate that this kit can be used for the quantitative determination of GMP human IL-15 (ACROBiosystems, cat#GMP-L15H13) concentrations. The specificity has been verified.
应用说明（Application）
The Human Interleukin-15 (IL-15) ELISA Kit (Residue Testing)was developed for the detection and quantitative determination of GMP human IL-15 in samples from CAR-T product preparation processing where IL-15 is used as an immunotherapy agent.
It is for research use only.
重构方法（Reconstitution）
Please see Certificate of Analysis for details of reconstitution instruction and specific concentration.
存储（Storage）
Unopened kit should be stored at 2°C -8°C upon receiving.
Find the expiration date on the outside packaging and do not use reagents past their expiration date.
The opened kit should be stored per components table. The shelf life is 30 days from the date of opening.
组分（Materials Provided）
IDComponentsSizeCRS024-C01Pre-coated Anti-IL-15 Antibody Microplate1 plate(8×12 strips)CRS024-C02Human IL-15 Standard20 μgCRS024-C03Biotin-Anti-IL-15 Antibody15 μgCRS024-C04Streptavidin-HRP50 μLCRS024-C0510xWashing Buffer50 mLCRS024-C062xDilution Buffer50 mLCRS024-C07Substrate Solution12 mLCRS024-C08Stop Solution7 mL原理（Assay Principles）
This assay kit employs a standard sandwich-ELISA format, providing a rapid detection of Human IL-15. The kit consists of Pre-coated Anti-IL-15 Antibody Microplate and Human IL-15 Standard and Biotin-Anti-IL-15 Antibody and Streptavidin-HRP and buffers.
Your experiment will include 6 simple steps:
a) Bring all reagents to room temperature(20℃-25℃) before use.
b) Add your sample to the plate and take the Human IL-15 as standard. The samples and standard are diluted by Dilution Buffer.
c) Wash the plate and add the Biotin-Anti-IL-15 Antibody diluted by Dilution Buffer to the plate.
d) Wash the plate and add the Streptavidin-HRP diluted by Dilution Buffer to the plate.
e) Wash the plate and add TMB.
f) Stop the substrate reaction by adding diluted acid. Absorbance (OD) is calculated by the absorbance at 450 nm minus the absorbance at 630 nm to remove background disturbance before statistical analysis. The OD Value reflects the amount of bound protein.
质量管理控制体系（QMS）
产品展示
典型数据-Typical Data
Please refer to DS document for the assay protocol.
For each experiment, a standard curve needs to be set for each micro-plate, and the specific OD value may vary depending on different laboratories, testers, or equipments. The following example data is for reference only.
稀释线性（Dilution Linearity）
To assess the linearity of the assay, samples spiked with high concentrations of human IL-15 were serially diluted with calibrator diluent to produce samples with values within the dynamic range of the assay.
批内差异（Intra-Assay Statistics）
Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision, Intra-Assay Precision CV＜10%.
批间差异（Inter-Assay Statistics）
Three samples of known concentration were tested in three separate assays to assess inter-assay precision, Inter-Assay Precision CV<10%.
回收率（Recovery）
Three parts of blank serum were added with different concentrations of human IL-15, and the serum without human IL-15 was used as background to calculate the recovery rate. The range of the recovery rate is 80.9-97.7%, and the average recovery is 86.3%.
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背景介绍
Interleukin 15 is also known as IL15, IL-15, and is a cytokine with structural similarity to IL-2. Like IL-2, IL-15 binds to and signals through the IL-2/IL-15 beta chain (CD122) and the common gamma chain (gamma-C, CD132). IL-15 is secreted by mononuclear phagocytes (and some other cells) following infection by virus(es). This cytokine induces cell proliferation of natural killer cells; cells of the innate immune system whose principal role is to kill virally infected cells. Interleukin 15 (IL-15) regulates T and natural killer (NK) cell activation and proliferation. Survival signals that maintain memory T cells in the absence of antigen are provided by IL-15. This cytokine is also implicated in NK cell development. In rodent lymphocytes, IL-15 prevents apoptosis by inducing an apoptosis inhibitor, BCL2L1/BCL-x(L). IL-15 has been shown to enhance the anti-tumor immunity of CD8+ T cells in pre-clinical models. A phase I clinical trial to evaluate the safety, dosing, and anti-tumor efficacy of IL-15 in patients with metastatic melanoma and renal cell carcinoma (kidney cancer) has begun to enroll patients at the National Institutes of Health.
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