Prevention of hydrogen peroxide-induced oxidative stress in HDF cells by peptides derived from seaweed pipefish, Syngnathus schlegeli.
Two new peptides derived from seaweed pipefish Syngnathus schlegeli, SPP-1(QLGNLGV) and SPP-2 (SVMPVVA) were assessed for their ability to prevent hydrogen peroxide induced oxidative stress in human dermal fibroblasts (HDFs). Both peptides showed a significant hydroxyl radical scavenging activity when tested by ESR technique. And also the peptides effectively suppressed the hydrogen peroxide induced ROS production and DNA damage in HDF cells. Furthermore the two peptides increase the protein expression levels of intracellular antioxidant enzymes SOD1, GSH and catalase in hydrogen peroxide stressed HDF cells. At the cellular signaling level, SPPs block the NF-κB activation which may lead to the reduction of oxidative stress mediated damage of HDF cells. These finding indicate the potential antioxidant effects of SPPs as response to H(2)O(2) stimulation.
Department of Chemistry, Pukyong National University, Busan 608-737, Republic of Korea.
Bomi
B
Ryu
S W A
SW
Himaya
Zhong-Ji
ZJ
Qian
Sang-Hoon
SH
Lee
Se-Kwon
SK
Kim
D000818:Animals; D002374:Catalase / Q000378:metabolism; D004578:Electron Spin Resonance Spectroscopy; D005347:Fibroblasts / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism; D005399:Fishes / Q000378:metabolism*; D005978:Glutathione / Q000378:metabolism; D006801:Humans; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D018384:Oxidative Stress / Q000187:drug effects*; D010455:Peptides / Q000494:pharmacology*; D012867:Skin / Q000166:cytology / Q000187:drug effects* / Q000201:enzymology / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism
D010455:Peptides; D006861:Hydrogen Peroxide; D002374:Catalase; D013482:Superoxide Dismutase; D005978:Glutathione