Title:Antioxidative and Anti-photooxidative Potential of Interruptins from the
Edible Fern Cyclosorus terminans in Human Skin Cells
Volume: 25
Issue: 4
Author(s): Suriya Chaiwong, Somporn Sretrirutchai, Jong-Hyuk Sung and Sireewan Kaewsuwan*
Affiliation:
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla
University, Songkhla, 90112, Thailand
- Phytomedicine and Pharmaceutical
Biotechnology Excellence Center, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla, 90112,
Thailand
Keywords:
Antioxidant enzyme, coumarin, natural antioxidant, ROS, skin, ultraviolet radiation.
Abstract:
Background: Human skin is exposed daily to oxidative stress factors such as UV light,
chemical pollutants, and invading organisms. Reactive oxygen species (ROS) are intermediate
molecules that cause cellular oxidative stress. In order to survive in an oxygen-rich environment,
all aerobic organisms, including mammals, have evolved enzymatic and non-enzymatic defence
systems. The interruptins from an edible fern Cyclosorus terminans possess antioxidative properties
and can scavenge intracellular ROS in adipose-derived stem cells.
Objectives: This study aimed to evaluate the antioxidative efficacy of interruptins A, B, and C in
cultured human dermal fibroblasts (HDFs) and epidermal keratinocytes (HEKs). Moreover, the
anti-photooxidative activity of interruptins in ultraviolet (UV)-exposed skin cells was investigated.
Methods: The intracellular ROS scavenging capacity of interruptins in skin cells was measured by
flow cytometry. Their induction effects on gene expression of the endogenous antioxidant enzymes
was monitored using real-time polymerase chain reaction.
Results: Interruptins A and B, but not interruptin C, were highly effective in ROS scavenging,
particularly in HDFs. Interruptins A and B upregulated gene expression of superoxide dismutase
(SOD)1, SOD2, catalase (CAT), and glutathione peroxidase (GPx) in HEKs, but they only induced
SOD1, SOD2, and GPx gene expression in HDFs. Additionally, interruptins A and B efficiently
suppressed UVA- and UVB-induced ROS generation in both HEKs and HDFs.
Conclusion: The results suggest that these naturally occurring interruptins A and B are potent
natural antioxidants and therefore may have the potential in the future of inclusion in antiaging
cosmeceutical products.