Description
Principle of the assay: This kit was based on sandwich enzyme-linked immune-sorbent assay technology. Anti- E-Selectin polyclonal antibody was pre-coated onto 96-well plates. And the biotin conjugated anti- E-Selectin polyclonal antibody was used as detection antibodies. The standards, test samples and biotin conjugated detection antibody were added to the wells subsequently, and wash with wash buffer. Avidin-Biotin-Peroxidase Complex was added and unbound conjugates were washed away with wash buffer. TMB substrates were used to visualize HRP enzymatic reaction. TMB was catalyzed by HRP to produce a blue color product that changed into yellow after adding acidic stop solution. The density of yellow is proportional to the E-Selectin amount of sample captu red in plate. Read the O.D. absorbance at 450nm in a microplate reader, and then the concentration of E-Selectin can be calculated.
Background: E-selectin, also known as CD62 antigen-like family member E (CD62E), endothelial-leukocyte adhesion molecule 1 (ELAM-1), or leukocyte-endothelial cell adhesion molecule 2 (LECAM2), is a cell adhesion molecule expressed only on endothelial cells activated by cytokines. The ELAM gene is present in single copy in the human genome and contains 14 exons spanning about 13 kb of DNA. E-selectin mediates the adhesion of tumor cells to endothelial cells, by binding to Eselectin ligands expressed by neutrophils, monocytes, eosinophils, memory-effector T-like lymphocytes, natural killer cells or cancer cells