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Analysis of CD44 (Human) by ELISA (CAT#: STEM-MB-0730-LGZ)

Introduction

CD44 is highly expressed in the memory phase of B and T cells and is considered to be a valuable marker of memory cell subsets. CD44 is an adhesion molecule, CD44 antigen is a cell surface glycoprotein, and CD44 is involved in various cellular functions, including lymphocyte activation, recycling and homing, hematopoiesis and tumor metastasis.




Principle

Enzyme-linked immunosorbent assay (ELISA) is an enzyme-labeled solid phase immunoassay technique. Its basic principle is to bind the antigen (or antibody) to the solid phase carrier, and the antigen (or antibody) and a certain enzyme link to enzyme labeled antigen (or antibody). During detection, the sample to be tested and the enzymic antigen (or antibody) react with the antigen (or antibody) on the solid phase carrier according to certain procedures, and then remove the unreacted part by washing method. After adding the substrate, the substrate is catalyzed by the enzyme on the solid phase carrier to produce colored substances. Through qualitative or quantitative detection of the amount of colored products, the content of the substance to be measured in the sample can be determined.

Applications

Oncology & Cancer

Procedure

1. Add standards or samples to each well and incubate.
2. Pour off the liquid in the well, biotinylated antibody working solution and incubate.
3. Add enzyme conjugate working solution and incubate.
4. Add substrate TMB and incubate.
5. Add stop solution and measure OD value.
6. Calculation of results.

Materials

• Sample Type: Serum, plasma or cell culture supernatant

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