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IL-13 Detection (CAT#: STEM-MB-0282-WXH)

Introduction

Interleukin 13 (IL-13) is mainly secreted by activated CD4+ Th2 cells, and non-T cells such as mast cells, eosinophils and basophils can also produce IL-13. In the early allergic reaction, IL-13 mainly comes from natural killer T cells (NK cells). Its main biological function is to promote B cell proliferation and differentiation, induce B cell synthesis of IgE and expression of CD23, MHC class II molecules, downregulate cytotoxicity and inflammation of monocytes and macrophages, and play an important role in regulating immune and inflammatory responses. IL-13 has complex biological functions and participates in the occurrence and pathogenesis of various diseases. With the deepening of research, it has been found that IL-13 is closely related to dermatological diseases such as psoriasis, atopic dermatitis, lupus erythematosus, urticaria and allergic purpura. If it can be further studied its mechanism of action in related skin diseases, it will play an important role in promoting the development of dermatology.




Principle

The various functions of IL-13 are completed by a complex receptor system, including IL-4 receptor α (IL-4Rα, CD124) and two other cell surface proteins of the same family: IL-13 receptor α1 (IL-13Rα1, CD231α1) and IL-13 receptor α2 (IL-13Rα2, CD231α2). In IL-13R, IL-13Rα1 and IL-4Rα exist as homodimers. IL-13Rα2 is considered to be an inducing receptor due to its shorter intracellular protein form. IL-13Rα2 exists in three forms: membrane protein, intracellular protein and extracellular soluble protein. IL-13 uses JAK-STAT to establish signaling pathways. After IL-13 binds to IL-13R, it leads to the activation of JAK1 and Tyk2. JAK can cause the phosphorylation of IL-4Rα intracellular tyrosine, which in turn phosphorylates and activates STAT6. The activated STAT6 dimer is transferred into the nucleus, which in turn binds DNA to regulate the transcription of downstream genes.

Applications

IL-13 can promote B cell proliferation and differentiation.
IL-13 can induce B cell synthesis of IgE and expression of CD23, MHC class II molecules.
IL-13 can downregulate cytotoxicity and inflammation of monocytes and macrophages
IL-13 plays an important role in regulating immune and inflammatory responses.
IL-13 participates in the occurrence and pathogenesis of various diseases (such as psoriasis, atopic dermatitis, lupus erythematosus, urticaria and allergic purpura).

Procedure

1. Process samples.
2. IL-13 detection (qPCR, Enzyme-linked immunosorbent assay (ELISA), Flow cytometry).
3. Analysis results.

Notes

Sample Types-Blood, serum, plasma, cerebrospinal fluid, cell culture supernatant, tissue homogenate, cell culture medium, urine, tumor, etc.

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