Fig. 8

Working model. ECM1 in the secretomes of MenSCs directly interacts with LRP1α through N-terminal domain and ligands repeats sequence 4 domain to subsequently suppress AKT/mTOR and activate FoxO1 signaling pathways, which promote the pyrimidine and purine metabolism and the expression of extracellular matrix, thereby inactiving HSC and ultimately attenuating liver fibrosis. Consistently, ECM1-modified MenSCs regulate the transcription of intrinsic cytokine genes to prevent liver fibrosis.