Ann Surg Treat Res.  2019 Oct;97(4):159-167. 10.4174/astr.2019.97.4.159.

Antioxidant action of hypoxic conditioned media from adipose-derived stem cells in the hepatic injury of expressing higher reactive oxygen species

Affiliations
  • 1Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Korea. sayjunekim@gmail.com
  • 2Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.
  • 3Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Abstract

PURPOSE
Almost all liver diseases are known to be accompanied by increased levels of reactive oxygen species (ROS), regardless of the cause of the liver disorder. However, little is known about the role of hypoxic conditioned media (HCM) in the view of pro-oxidative/antioxidative balance.
METHODS
Normoxic conditioned media (NCM) and HCM were obtained after culturing adipose-derived stem cells in 20% Oâ‚‚ or 1% Oâ‚‚ for 24 hours, respectively. Their effects on the expression of various markers reflecting pro-oxidative/antioxidative balance were investigated in both in vitro (thioacetamide-treated AML12 cells) and in vivo (partially hepatectomized mice) models of liver injury, respectively.
RESULTS
HCM treatment induced the higher expression of antioxidant enzymes, such as superoxide dismutase, glutathione peroxidase, and catalase than did NCM in the in vitro model of liver injury. We also found that HCM increased the expression of nuclear factor erythroid 2-related factor (NRF2). The in vivo models of liver injury consistently validated the phenomenon of upregulated expression of antioxidant enzymes by HCM.
CONCLUSION
We thus could conclude that HCM provides protection against ROS-related toxicity by increasing the expression of antioxidant enzymes, in part by releasing NRF2 in the injured liver.

Keyword

Antioxidants; Conditioned culture media; Mesenchymal stem cell; Reactive oxygen species; Secretome

MeSH Terms

Antioxidants
Catalase
Culture Media, Conditioned*
Glutathione Peroxidase
In Vitro Techniques
Liver
Liver Diseases
Mesenchymal Stromal Cells
Reactive Oxygen Species*
Stem Cells*
Superoxide Dismutase
Antioxidants
Catalase
Culture Media, Conditioned
Glutathione Peroxidase
Reactive Oxygen Species
Superoxide Dismutase
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