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Role and molecular mechanism of IL6 signaling pathway in inflammatory response in human skin fibroblasts

Time：

2023-06-07

本研究通过对人皮肤成纤维细胞进行转染实验，验证了针对IL6信号通路的小分子抑制剂对细胞炎性反应的抑制效果。利用流式细胞术和Western Blot技术，研究了IL6信号通路在皮肤成纤维细胞炎性反应中的分子调控机制，从而为遗传性炎症性疾病的治疗提供新的可能。

I. Background

　　Interleukin 6 (IL6) is a multifunctional inflammatory cytokine that plays a key role in the immune response and multiple diseases. Studying the relationship between IL6 signaling pathway and inflammatory response at the genetic level will help to understand the pathogenesis of inflammatory diseases and provide new ideas for the treatment of hereditary inflammatory diseases.

　　II. Experimental methods

　　Cell culture: Human skin fibroblasts were isolated from healthy adult skin samples and cultured in a cell culture chamber with 5% CO2 saturation concentration.

　　Small molecule inhibitor screening: Using the drug screening platform, small molecule inhibitors with inhibitory effect on IL6 signaling pathway were screened.

　　Transfection assay: The small molecule inhibitors obtained from the screening were transfected into human skin fibroblasts, and the changes of cellular inflammatory responses were observed.

　　Flow cytometry: The role of the IL6 signaling pathway in the cellular inflammatory response was assessed by detecting the levels of cells expressing IL6 and other inflammatory cytokines.

　　Western Blot: To reveal the molecular regulation mechanism of IL6 signaling pathway in the inflammatory response by detecting the expression of IL6 receptor, signaling molecule p38 MAPK and other key molecules of the pathway in cells.

　　III. Experimental results

　　A small molecule inhibitor with significant inhibitory effect on IL6 signaling pathway was successfully screened.

　　Transfection experiments showed that the small molecule inhibitor could effectively inhibit the inflammatory response in human skin fibroblasts.

　　Flow cytometry data showed that the small molecule inhibitor was able to reduce the expression levels of IL6 and inflammatory cytokines.

　　Western Blot assay results showed that the small molecule inhibitor could significantly down-regulate the expression levels of IL6 receptor, signaling molecule p38 MAPK and other key molecules of the pathway.

　　IV. Conclusion

　　This study confirmed that the IL6 signaling pathway in human skin fibroblasts plays a key role in the inflammatory response. By inhibiting the IL6 signaling pathway, the cellular inflammatory response can be effectively alleviated, which provides a potential therapeutic strategy for the treatment of hereditary inflammatory diseases. Meanwhile, this study reveals the molecular regulatory mechanism of IL6 signaling pathway in inflammatory response, which lays the foundation for further in-depth study of the pathogenesis of inflammatory diseases and provides a new theoretical basis for disease prevention and treatment.

　　V. Contribution and Prospect

　　This study reveals the role of IL6 signaling pathway in the inflammatory response of human skin fibroblasts, which provides an important theoretical basis for the study and treatment of inflammatory diseases.

　　Through the inhibition of IL6 signaling pathway, this study provides new ideas and potential therapeutic strategies for the treatment of hereditary inflammatory diseases.

　　This study reveals the molecular regulation mechanism of IL6 signaling pathway in inflammatory response, which provides a new perspective for in-depth study of the pathogenesis of inflammatory diseases.

　　This study further expands our understanding of the relationship between IL6 signaling pathway and inflammatory response, and helps to promote the pathogenesis and therapeutic research of genetic abnormality-related diseases.

　　In conclusion, this study provides a new theoretical basis for studying the role of IL6 signaling pathway in inflammatory response and the treatment of hereditary inflammatory diseases, which has important scientific and clinical values.