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Stem Cells International
Volume 2018 (2018), Article ID 6079642, 11 pages
Research Article

Human Umbilical Cord MSC-Derived Exosomes Suppress the Development of CCl4-Induced Liver Injury through Antioxidant Effect

1Liver Disease and Cancer Institute, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
2The Affiliated Third Hospital of Zhenjiang, Jiangsu University, Zhenjiang, Jiangsu, China
3Key Laboratory of Laboratory Medicine of Jiangsu Province, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China

Correspondence should be addressed to Hui Qian and Yongmin Yan

Received 7 August 2017; Revised 20 November 2017; Accepted 10 December 2017; Published 4 March 2018

Academic Editor: Ann Steele

Copyright © 2018 Wenqian Jiang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Mesenchymal stem cells (MSCs) have been increasingly applied into clinical therapy. Exosomes are small (30–100 nm in diameter) membrane vesicles released by different cell types and possess the similar functions with their derived cells. Human umbilical cord MSC-derived exosomes (hucMSC-Ex) play important roles in liver repair. However, the effects and mechanisms of hucMSC-Ex on liver injury development remain elusive. Mouse models of acute and chronic liver injury and liver tumor were induced by carbon tetrachloride (CCl4) injection, followed by administration of hucMSC-Ex via the tail vein. Alleviation of liver injury by hucMSC-Ex was determined. We further explored the production of oxidative stress and apoptosis in the development of liver injury and compared the antioxidant effects of hucMSC-Ex with frequently used hepatic protectant, bifendate (DDB) in liver injury. hucMSC-Ex alleviated CCl4-induced acute liver injury and liver fibrosis and restrained the growth of liver tumors. Decreased oxidative stress and apoptosis were found in hucMSC-Ex-treated mouse models and liver cells. Compared to bifendate (DDB) treatment, hucMSC-Ex presented more distinct antioxidant and hepatoprotective effects. hucMSC-Ex may suppress CCl4-induced liver injury development via antioxidant potentials and could be a more effective antioxidant than DDB in CCl4-induced liver tumor development.