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Analysis of CD5L (Human) by ELISA (CAT#: STEM-MB-0732-LGZ)

Introduction

CD5L antigen-like protein (CD5L) as a key regulator of lipid synthesis: mainly expressed by macrophages in lymphoid and inflamed tissues, regulates the mechanisms of inflammatory responses, such as infection or arteriosclerosis. It inhibits the size of lipid droplets in fat cells. After entering mature adipocytes through CD36-mediated endocytosis, it binds to the cell membrane FASN, inhibits the activity of fatty acid synthase, leads to lipolysis, and degrades triacylglycerol into glycerol and free fatty acids (FFA). CD5L-induced lipolysis occurs as obesity progresses: after inflammatory macrophages are recruited to adipose tissue, they are involved in obesity-associated inflammation, which is responsible for insulin resistance and obesity-associated metabolic disease. Intracellular lipid regulation mediated by CD5L has a direct effect on transcriptional regulation mediated by the nuclear receptor ROR-gamma (RORC).




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

Cytokines & Chemokines, Immunology/Inflammation

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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