Σφακιανάκης Αλέξανδρος
ΩτοΡινοΛαρυγγολόγος
Αναπαύσεως 5 Άγιος Νικόλαος
Κρήτη 72100
00302841026182
00306932607174
alsfakia@gmail.com

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Τρίτη 25 Απριλίου 2017

Plasma-derived exosomes contribute to inflammation via the TLR9-NF-κB pathway in chronic heart failure patients

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Publication date: July 2017
Source:Molecular Immunology, Volume 87
Author(s): Wei Ye, Xiaojun Tang, Zhengquan Yang, Chu Liu, Xin Zhang, Jing Jin, Jianxin Lyu
Exosomes are small vesicles that contain proteins, DNA and RNA, and play an important role in inflammation; however, the underlying mechanism remains unclear. In the present study, we found increased plasma-derived exosomes in chronic heart failure patients compared with healthy controls. Further, our data demonstrated that plasma-derived exosomes carried mtDNA, and triggered an inflammatory response via the TLR9-NF-κB pathway, as well, the inflammatory effect was closely related to exosomal mtDNA copy number. However, the effect could be blocked by chloroquine (CQ), a TLR9 inhibitor. These findings reveal a new mechanism of exosome-induced inflammation, and provide a new perspective for intervention and treatment of inflammation-related diseases, such as chronic heart failure.



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