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IL-19 Detection (CAT#: STEM-MB-0286-WXH)

Introduction

Interleukin-19 (IL-19) is a newly discovered cytokine of the interleukin-10 (IL-10) superfamily. It was first discovered and cloned by Gallagher in 2000. IL-10 is generally considered to be a cytokine that systematically inhibits inflammation, while IL-19 and IL-10 are similar in sequence and structure and both consist of 5 exons and 4 introns, so they were thought to be similar biological activity. IL-10 is an anti-inflammatory and anti-angiogenic cytokine, while IL-19 has dual immune effects of pro-inflammatory and anti-inflammatory, and also has biological effects such as promoting neo-angiogenesis and regulating the development of certain tumor diseases. However, it was later discovered that many studies have proved that the biological role of IL-19 is very different from IL-10, and it is widely expressed in a variety of cells and is involved in the occurrence and development of various inflammatory diseases. It plays an anti-inflammatory or pro-inflammatory role, and IL-19 also has different effects in diseases of different systems, especially in terms of inflammatory response.




Principle

The IL-19 gene is located on human chromosome 1q32, and has 21% amino acid homology with IL-10. Its exon and intron structure is similar to human IL-10. And IL-19, IL-20, IL-22, and IL- 24 make up the IL-10 family. IL-19 is not only expressed in large amounts in human immune cells (monocytes, T / B lymphocytes, macrophages), but also plays an important role in immunoregulation, and even are highly expressed in tumor cells promoting tumor cell proliferation and metastasis. After IL-19 binds to the IL-20Ra / IL-20Rb heterodimer receptor complex, it exerts biological effects through signaling molecules such as STAT1 and STAT3, so IL-19 also belongs to the IL-20 subfamily. IL-19 can promote the polarization of lymphocytes and peripheral blood mononuclear cells (PBMC) to Th2. IL-19 promotes the Th2 immune response in the Th1 / Th2 immune balance, so IL-19 is first classified as a Th2 cytokine.

Applications

IL-19 has dual immune effects of pro-inflammatory and anti-inflammatory, and also has biological effects such as promoting neo-angiogenesis and regulating the development of certain tumor diseases.

Procedure

1. Process samples.
2. IL-19 detection (qPCR, Enzyme-linked immunosorbent assay (ELISA), Flow cytometry).
3. Analysis results.

Notes

Sample Types-Blood, serum, plasma, cell culture medium, tissue homogenate, etc.

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