Electroacupuncture-driven endogenous circulating serum exosomes as a potential therapeutic strategy for sepsis

Author:

Zhang Jingyu,Wang Meijuan,Hu Xiyou,Li Ningcen,Loh PeiYong,Gong Yinan,Chen Yong,Wang Lifen,Lin Xiaowei,Xu Zhifang,Liu Yangyang,Guo Yi,Chen Zelin,Chen Bo

Abstract

Abstract Background Sepsis poses a serious threat to human life and health, with limited options for current clinical treatments. Acupuncture plays an active role in treating sepsis. However, previous studies have focused on the neuromodulatory effect of acupuncture, neglecting its network modulatory effect. Exosomes, as a new way of intercellular communication, may play an important role in transmitting acupuncture information. This paper explores the possibility of electroacupuncture-driven endogenous circulating serum exosomes and their carried miRNAs as a potential treatment for sepsis. Methods The sepsis mouse model was established by intraperitoneal injection of lipopolysaccharide (LPS) (12 mg/kg, 24 mg/kg), and EA (continuous wave, 10 Hz, intensity 5) or intraperitoneal injection of Acupuncture Exosomes (Acu-exo) were performed before the model establishment. The therapeutic effect was evaluated by survival rate, ELISA, H&E staining and lung wet/dry weight ration (W/D). In vivo imaging of small animals was used to observe the accumulation of Acu-exo in various organs of sepsis mice. LPS was used to induce macrophages in cell experiments, and the effect of Acu-exo on macrophage inflammatory cytokines was observed. In addition, The miRNA sequencing method was further used to detect the serum exosomes of normal and EA-treated mice, and combined with network biology analysis methods to screen possible key targets. Results EA and Acu-exo reduced the W/D and lung tissue damage in sepsis mice, down-regulated the expression of serum inflammatory cytokines TNF-α and IL-6, and increased the survival rate of sepsis mice. In vivo imaging of small animals found that Acu-exo were accumulated in the lungs of sepsis mice. Cell experiments proved that Acu-exo down-regulated the expression of inflammatory cytokines TNF-α, IL-6 and IL-1β to alleviate the inflammatory response induced by LPS in macrophages. MiRNA sequencing revealed 53 differentially expressed miRNAs, and network biology analysis revealed the key targets of Acu-exo in sepsis treatment. Conclusion Electroacupuncture-driven endogenous circulating serum exosomes and their carried miRNAs may be a potential treatment for sepsis.

Funder

the National Natural Science Foundation of China

Natural Science Foundation of Tianjin Municipal Science and Technology Commission

the Young Elite Scientists Sponsorship Program by CAST

Tianjin Graduate Research Innovation Project

Graduate Research Innovation Project of TUTCM

Publisher

Springer Science and Business Media LLC

Subject

Complementary and alternative medicine,Pharmacology

Reference33 articles.

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