The present disclosure elucidates that 34-mer PEDF suppresses hepatic stellate cells (HSCs) from activation by diminishing the levels of alpha-smooth muscle actin (α-SMC), collagen type 1, and monocyte chemoattractant protein-1 (MCP-1)； and 44-mer PEDF promotes liver regeneration process by enhancing the replication of liver-derived progenitor cells (LDPCs). Accordingly, methods and compositions directing to the new use of the 34-mer PEDF or 44-mer PEDF in patients suffering from liver cirrhosis are provided herein.
