Terrein reduces age-related inflammation induced by oxidative stress through Nrf2/ERK1/2/HO-1 signalling in aged HDF cells.

Abstract

This study investigated whether multiple bioactivity of terrein such as anti-inflammatory and anti-oxidant inhibits age-related inflammation by promoting an antioxidant response in aged human diploid fibroblast (HDF) cells. HDF cells were cultured serially for in vitro replicative senescence. To create the ageing cell phenotype, intermediate stage (PD31) HDF cells were brought to stress-induced premature senescence (SIPS) using hydrogen peroxide (H2 O2). Terrein increased cell viability even with H2O2 stress and reduced inflammatory molecules such as intracellular adhesion molecule-1 (ICAM-1), cyclooxygenase-2 (COX-2), interleukin-1beta (IL-1β) and tumour necrosis factor-alpha (TNF-α). Terrein reduced also phospho-extracellular kinase receptor1/2 (p-EKR1/2) signalling in aged HDF cells. SIPS cells were attenuated for age-related biological markers including reactive oxygen species (ROS), senescence associated beta-galactosidase (SA β-gal.) and the aforementioned inflammatory molecules. Terrein induced the induction of anti-oxidant molecules, copper/zinc-superoxide defence (Cu/ZnSOD), manganese superoxide dismutase (MnSOD) and heme oxygenase-1 (HO-1) in SIPS cells. Terrein also alleviated reactive oxygen species formation through the Nrf2/HO-1/p-ERK1/2 pathway in aged cells. The results indicate that terrein has an alleviative function of age-related inflammation characterized as an anti-oxidant. Terrein might be a useful nutraceutical compound for anti-ageing.

• Authors: Young-Hee Lee, Sook-Jeong Lee, Ji-Eun Jung, Jeong-Seok Kim, Nan-Hee Lee, Ho-Keun Yi
• Journal: Cell biochemistry and function (Cell Biochem Funct) Vol. 33 Issue 7 Pg. 479-86 (Oct 2015) ISSN: 1099-0844 [Electronic] England
• PMID: 26416516 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2015 John Wiley & Sons, Ltd.

Chemical References

• Antioxidants
• Cyclopentanes
• terrein

Topics

• Aging (drug effects, immunology)
• Antioxidants (pharmacology)
• Cell Culture Techniques
• Cells, Cultured
• Cyclopentanes (pharmacology)
• Fibroblasts (drug effects)
• Humans
• Inflammation (drug therapy)
• MAP Kinase Signaling System (drug effects)
• Oxidative Stress (drug effects)