Derinat protects skin against ultraviolet-B (UVB)-induced cellular damage

Wen Li Hsu, Jian He Lu, Mami Noda, Ching Ying Wu, Jia Dai Liu, Manabu Sakakibara, Ming Hsien Tsai, Hsin Su Yu, Ming Wei Lin, Yaw Bin Huang, Shian Jang Yan, Tohru Yoshioka

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


Ultraviolet-B (UVB) is one of the most cytotoxic and mutagenic stresses that contribute to skin damage and aging through increasing intracellular Ca2+ and reactive oxygen species (ROS). Derinat (sodium deoxyribonucleate) has been utilized as an immunomodulator for the treatment of ROS-associated diseases in clinics. However, the molecular mechanism by which Derinat protects skin cells from UVB-induced damage is poorly understood. Here, we show that Derinat significantly attenuated UVB-induced intracellular ROS production and decreased DNA damage in primary skin cells. Furthermore, Derinat reduced intracellular ROS, cyclooxygenase-2 (COX-2) expression and DNA damage in the skin of the BALB/c-nu mice exposed to UVB for seven days in vivo. Importantly, Derinat blocked the transient receptor potential canonical (TRPC) channels (TRPCs), as demonstrated by calcium imaging. Together, our results indicate that Derinat acts as a TRPCs blocker to reduce intracellular ROS production and DNA damage upon UVB irradiation. This mechanism provides a potential new application of Derinat for the protection against UVB-induced skin damage and aging.

Original languageEnglish
Pages (from-to)20297-20311
Number of pages15
Issue number11
Publication statusPublished - Nov 12 2015

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Chemistry (miscellaneous)
  • Molecular Medicine
  • Pharmaceutical Science
  • Drug Discovery
  • Physical and Theoretical Chemistry
  • Organic Chemistry


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