Human adipose stem cell-derived extracellular nanovesicles for treatment of chronic liver fibrosis.

Abstract

Liver fibrosis is an excessive wound healing process that occurs in response to liver damage depending on underlying aetiologies. Currently, there are no effective therapies and FDA-approved therapeutics for the treatment of liver fibrosis except liver transplantation. Multipotent adipose-derived stem cells (ADSCs) have received significant attention as regenerative medicine for liver fibrosis owing to their advantages over stem cells with other origins. However, intrinsic limitations of stem cell therapies, such as cellular rejection and tumor formation, have impeded clinical applications of the ADSC-based liver therapeutics. To overcome these problems, the extracellular nanovesicles (ENVs) responsible for the therapeutic effect of ADSCs (A-ENVs) have shown considerable promise as cell-free therapeutics for liver diseases. However, A-ENVs have not been used for the treatment of intractable chronic liver diseases including liver fibrosis and cirrhosis. Therefore, in this study, we investigated the in vitro and in vivo antifibrotic efficacy of A-ENVs in thioacetamide-induced liver fibrosis models. A-ENVs significantly downregulated the expression of fibrogenic markers, such as matrix metalloproteinase-2, collagen-1, and alpha-smooth muscle actin. The systemic administration of A-ENVs led to high accumulation in fibrotic liver tissue and the restoration of liver functionality in liver fibrosis models through a marked reduction in α-SMA and collagen deposition. These results demonstrate the significant potential of A-ENVs for use as extracellular nanovesicles-based therapeutics in the treatment of liver fibrosis and possibly other intractable chronic liver diseases.

• Authors: Hwa Seung Han, Hansang Lee, DongGil You, Van Quy Nguyen, Dae-Geun Song, Byeong Hoon Oh, Sol Shin, Ji Suk Choi, Jae Dong Kim, Cheol-Ho Pan, Dong-Gyu Jo, Yong Woo Cho, Ki Young Choi, Jae Hyung Park
• Journal: Journal of controlled release : official journal of the Controlled Release Society (J Control Release) Vol. 320 Pg. 328-336 (04 10 2020) ISSN: 1873-4995 [Electronic] Netherlands
• PMID: 31981658 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2020 Elsevier B.V. All rights reserved.

Chemical References

• Matrix Metalloproteinase 2

Topics

• Adipose Tissue
• Fibrosis
• Humans
• Liver (pathology)
• Liver Cirrhosis (pathology, therapy)
• Matrix Metalloproteinase 2
• Stem Cells