Alteration of Lysosome Fusion and Low-grade Inflammation Mediated by Super-low-dose Endotoxin
Chu, Hong Wei
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Background: Super-low-dose endotoxemia contributes to cell stress and low-grade inflammation. Results: Super-low-dose LPS removed Tollip from late endosomes/lysosomes and blocked lysosome fusion with endosomes or autophagosomes. Tollip knock-out mice had impaired wound healing. Conclusion: Super-low-dose LPS leads to cell stress through clearing Tollip and blocking lysosome fusion. Significance: Our data reveal molecular dynamics of innate immunity regulation.