Protein Information

ID 50
Name ERK1
Synonyms ERK 1; ERK1; ERT 2; ERT2; Extracellular signal regulated kinase 1; Extracellular signal related kinase 1b; Extracellular signal related kinase 1c; HS44KDAP…

Compound Information

ID 1341
Name rotenone
CAS

Reference

PubMed Abstract RScore(About this table)
19857556 Li X, Liu Z, Tamashiro K, Shi B, Rudnicki DD, Ross CA, Moran TH, Smith WW: Synphilin-1 exhibits trophic and protective effects against Rotenone toxicity. Neuroscience. 2010 Jan 20;165(2):455-62. Epub .
Synphilin-1 is a cytoplasmic protein with unclear function. Synphilin-1 has been identified as an interaction partner of alpha-synuclein. The interaction between synphilin-1 and alpha-synuclein has implications in Parkinson's disease. In this study, we stably overexpressed human synphilin-1 in mouse N1E-115 neuroblastoma cells. We found that overexpression of synphilin-1 shortened cell growth doubling time and increased neurite outgrowth. Knockdown of endogenous synphilin-1 caused neuronal toxicity and shortened neurite outgrowth. We further found that synphilin-1 increased activation of the extracellular signal-regulated kinases (ERK1/2) and mediated neurite outgrowth. Rotenone, mitochondrial complex I inhibitor, has been shown previously to induce dopaminergic neurodegeneration and Parkinsonism in rats and Drosophila. We found that Rotenone induced apoptotic cell death in N1E-115 cells via caspase-3 activation and poly (ADP-ribose) polymerase (PARP) cleavage. Overexpression of synphilin-1 significantly reduced Rotenone-induced cell death, caspase-3 activation and PARP cleavage. The results indicate that synphilin-1 displays trophic and protective effects in vitro, suggesting that synphilin-1 may play a protective role in Parkinson's disease (PD) pathogenesis and may lead to a potential therapeutic target for PD intervention.
1(0,0,0,1)