Abstract
Cordycepin (3'-deoxyadenosine) has been shown to
exhibit many pharmacological activities, including anti-
cancer, anti-inflammatory, and anti-infection activities.
However, the anti-skin photoaging effects of cordycepin
have not yet been reported. In the present
study, we investigated the inhibitory effects of cordycepin
on matrix metalloproteinase-1 (MMP-1) and -3 expressions
of the human dermal fibroblast cells.
Western blot analysis and real-time PCR revealed cordycepin
inhibited UVB-induced MMP-1 and -3 expressions
in a dose-dependent manner. UVB strongly
activated NF-κB activity, which was determined by
IκBα degradation, nuclear localization of p50 and p65
subunit, and NF-κB binding activity. However, UVB-induced
NF-κB activation and MMP expression were
completely blocked by cordycepin pretreatment.
These findings suggest that cordycepin could prevent
UVB-induced MMPs expressions through inhibition of
NF-κB activation. In conclusion, cordycepin might be
used as a potential agent for the prevention and treatment
of skin photoaging.
Keywords: cordycepin; matrix metalloproteinases;
NF-κB; skin aging; ultraviolet rays