Enterococcus faecalis lipoteichoic acid regulates macrophages autophagy via PI3K/Akt/mTOR pathway.

Abstract:

:Enterococcus faecalis (E. faecalis) infection is considered an important etiological factor for the development of persistent apical periodontitis (PAP), but the exact mechanisms of autophagy between E. faecalis and immune cells remain unknown. In this study, we elucidated how E. faecalis lipoteichoic acid (LTA) is associated with macrophages autophagy. We found that E. faecalis LTA apparently activated macrophage autophagy with significant increase of autophagosomes and autophagy relative protein. Meanwhile, we noticed significantly decreasing expression of p-Akt and p-mTOR. However, these effect were absent in macrophages knockdown of Beclin1. In summary, these findings suggested E. faecalis LTA may increased macrophages autophagy via inhibiting PI3K/Akt/mTOR pathway and this process was Beclin1 dependent.

authors

Lin D,Gao Y,Zhao L,Chen Y,An S,Peng Z

doi

10.1016/j.bbrc.2018.03.109

subject

Has Abstract

pub_date

2018-04-15 00:00:00

pages

1028-1036

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(18)30601-6

journal_volume

498

pub_type

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