IL-4 Kit ELISA

N° du produit ABIN7048215

Détail du produit IL-4 Kit ELISA

Antigène: IL-4 (IL4) (Interleukin 4 (IL4))

Reactivité: Humain

Méthode de détection: Colorimetric

Type de méthode: Sandwich ELISA

Gamme de detection: 6.25 pg/mL - 400 pg/mL

Seuil minimal de détection: 6.25 pg/mL

Application: ELISA

Fonction: For the quantitative determination of human interleukin 4 (IL-4) concentrations in serum, tissue homogenates, cell culture supernates, saliva.

Type d'échantillon: Cell Culture Supernatant, Saliva, Serum, Tissue Homogenate

Analytical Method: Quantitative

Specificité: This assay has high sensitivity and excellent specificity for detection of human IL-4. No significant cross-reactivity or interference between human IL-4 and analogues was observed. Note: Limited by current skills and knowledge, it is impossible for us to complete the cross-reactivity detection between human IL-4 and all the analogues, therefore, cross reaction may still exist.

Sensibilité: 1.56 pg/mL

Ingrédients:

• Assay plate
• Standard
• HRP-avidin (100 x concentrate)
• Biotin-antibody (100 x concentrate)
• Sample Diluent
• HRP-avidin Diluent
• Biotin-antibody Diluent
• Wash Buffer (25 x concentrate)
• TMB Substrate
• Stop Solution
• Adhesive Strip

Information d'application

Indications d'application: Optimal working dilution should be determined by the investigator.

Volume d'échantillon: 100 μL

Durée du test: 1 - 4.5 h

Plaque: Pre-coated

Protocole:

1. Prepare reagents, samples and standards as instructed.
2. Add 100 µL standard or sample to each well. Incubate 2 hours at 37 °C.
3. Remove the liquid of each well, don't wash.
4. Add 100 µL Biotin-antibody (1x) to each well. Incubate 1 hour at 37 °C.
5. Aspirate and wash 3 times.
6. Add 100 µL HRP-avidin (1x) to each well. Incubate 1 hour at 37 °C
7. Aspirate and wash 5 times.
8. Add 90 μL of TMB Substrate to each well. Incubate for 15-30 minutes at 37 °C. Protect from light.
9. Add 50 µL Stop Solution to each well. Read at 450 nm within 5 minutes.

Préparation des réactifs:

1. Biotin-antibody (1x) - Centrifuge the vial before opening. Biotin-antibody requires a 100-fold dilution. A suggested 100-fold dilution is 10 μL of Biotin-antibody + 990 μL of Biotin-antibody Diluent.
2. HRP-avidin (1x) - Centrifuge the vial before opening. HRP-avidin requires a 100-fold dilution. A suggested 100-fold dilution is 10 μL of HRP-avidin + 990 μL of HRP-avidin Diluent.
3. Wash Buffer (1x) - If crystals have formed in the concentrate, warm up to room temperature and mix gently until the crystals have completely dissolved. Dilute 20 mL of Wash Buffer Concentrate (25 x) into deionized or distilled water to prepare 500 mL of Wash Buffer (1 x).
4. Standard Centrifuge the standard vial at 6000-10000rpm for 30s. Reconstitute the Standard with 1.0 mL of Sample Diluent. Do not substitute other diluents. This reconstitution produces a stock solution of 400 pg/mL. Mix the standard to ensure complete reconstitution and allow the standard to sit for a minimum of 15 minutes with gentle agitation prior to making dilutions. Pipette 250 μL of Sample Diluent into each tube (S0-S6). Use the stock solution to produce a 2-fold dilution series (below). Mix each tube thoroughly before the next transfer. The undiluted Standard serves as the high standard (400 pg/mL). Sample Diluent serves as the zero standard (0 pg/mL).

Note:

• Kindly use graduated containers to prepare the reagent. Please don't prepare the reagent directly in the Diluent vials provided in the kit.
• Bring all reagents to room temperature (18-25 °C) before use for 30 min.
• Prepare fresh standard for each assay. Use within 4 hours and discard after use.
• Making serial dilution in the wells directly is not permitted.
• Please carefully reconstitute Standards according to the instruction, and avoid foaming and mix gently until the crystals have completely dissolved. To minimize imprecision caused by pipetting, use small volumes and ensure that pipettors are calibrated. It is recommended to suck more than 10 μL for once pipetting.
• Distilled water is recommended to be used to make the preparation for reagents. Contaminated water or container for reagent preparation will influence the detection result.

Préparation de l'échantillon:

• It is recommended to use fresh samples without long storage, otherwise protein degradation and denaturationmay occur in these samples, leading to false results. Samples should therefore be stored for a short periodat 2 - 8 °C or aliquoted at -20 °C (≤1 month) or -80 °C (≤ 3 months). Repeated freeze-thawcycles should be avoided. Prior to assay, the frozen samples should be slowly thawed and centrifuged toremove precipitates.
• If the sample type is not specified in the instructions, a preliminary test is necessary to determinecompatibility with the kit.
• If a lysis buffer is used to prepare tissue homogenates or cell culture supernatant, there is a possibilityof causing a deviation due to the introduced chemical substance.The recommended dilution factor is for reference only.
• Please estimate the concentration of the samples before performing the test. If the values are not in therange of the standard curve, the optimal sample dilution for the particular experiment has to be determined.Samples should then be diluted with PBS (pH =7.0-7.2).

Précision du teste: Intra-assay Precision (Precision within an assay): CV%<8% Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10% Three samples of known concentration were tested in twenty assays to assess.

Restrictions: For Research Use only

Stockage

Stock: 4 °C,-20 °C

Stockage commentaire: Unopened kit Store at 2 - 8°C. Do not use the kit beyond the expiration date May be stored for up to 1 month at 2 - 8°C. Coated assay Try to keep it in a sealed aluminum foil bag, plate and avoid the damp. Standard May be stored for up to 1 month at 2 - 8° C. If Biotin-antibody don't make recent use, better keep it store at HRP-avidin -20°C. Biotin-antibody Diluent Opened kit HRP-avidin Diluent Sample May be stored for up to 1 month at 2 - 8°C. Diluent Wash Buffer TMB Substrate Stop Solution *Provided this is within the expiration date of the kit.

Date de péremption: 6 months

Références pour IL-4 Kit ELISA (ABIN7048215)

Cheng, Zhu, Xu, Yang, Chen, Xu, Zhao, Geng, Gong: "PKN2 in colon cancer cells inhibits M2 phenotype polarization of tumor-associated macrophages via regulating DUSP6-Erk1/2 pathway." dans: Molecular cancer, Vol. 17, Issue 1, pp. 13, (2018) (PubMed).

Ito, Nakagome, Ohta, Akasaka, Uchida, Hashimoto, Shiono, Takada, Nagata, Tohyama, Hagiwara, Kanazawa, Nakata, Tazawa: "Elderly-onset hereditary pulmonary alveolar proteinosis and its cytokine profile." dans: BMC pulmonary medicine, Vol. 17, Issue 1, pp. 40, (2017) (PubMed).

Ma, He, Wang, Xia, Wang, Ye, Tao: "Interaction of coagulation factors and tumor-associated macrophages mediates migration and invasion of gastric cancer." dans: Cancer science, Vol. 102, Issue 2, pp. 336-42, (2011) (PubMed).

Détail du antigène

Antigène: IL-4 (IL4) (Interleukin 4 (IL4))

Autre désignation: interleukin 4 (IL4 Produits)

Synonymes: IL4 Kit ELISA, IL-4 Kit ELISA, BCGF-1 Kit ELISA, BCGF1 Kit ELISA, BSF-1 Kit ELISA, BSF1 Kit ELISA, Il-4 Kit ELISA, Il4e12 Kit ELISA, IL2 Kit ELISA, interleukin 4 Kit ELISA, IL4 Kit ELISA, Il4 Kit ELISA

Sujet:

Abbreviation: IL4

Alias: BCGF-1, BCGF1, BSF1, IL-4, MGC79402, B cell growth factor 1|B_cell stimulatory factor 1|lymphocyte stimulatory factor 1

UniProt: P05112

Pathways: Signalistation JAK/STAT, Regulation of Leukocyte Mediated Immunity, Positive Regulation of Immune Effector Process, Production of Molecular Mediator of Immune Response, Proton Transport, Activated T Cell Proliferation