Project description:3,4-dihydroxybenzalacetone (DBL) and Caffeic acid phenethyl ester (CAPE) are both catechol-containing phenylpropanoid derivatives. In the present study, we compared the neuroprotective characteristics of these compounds and other phenylpropanoid derivatives against Parkinson’s disease-related neurotoxin 6-hydroxydopamine (6-OHDA). Pretreatment of human SH-SY5Y neuroblastoma cells with DBL or CAPE, but not with other compounds, prevented 6-OHDA-induced cell death, with marked effects observed for CAPE. To identify the mechanism, we compared gene expression profiles induced by these compounds in SH-SY5Y cells.
Project description:PC-3 prostate cancer cells were treated with caffeic acid phenethyl ester (CAPE) or vehicle control for 24 h and 72 h for transcription microarray analysis.
Project description:Caffeic acid phenethyl ester (CAPE), derived from various plant sources, has been shown to ameliorate ischemia/reperfusion (I/R) injury in vivo, and this has been attributed to its ability to reduce the oxidative stress. Here we investigated the cytoprotection of CAPE against menadione (MD)-induced oxidative stress in human umbilical vein endothelial cells (HUVEC) to evaluate potential gene expression involvement. CAPE exhibited dose-dependent cytoprotection of HUVEC that required preincubation. A gene screen with microarrays was performed to identify the potential cytoprotective gene(s) induced by CAPE. Heme oxygenase-1 (HO-1) was highly upregulated by CAPE and this was confirmed with reverse transcriptase polymerase chain reaction (RT-PCR) and western blotting. Keywords: gene expression in HUVEC, CAPE cytoprotective dose response
Project description:Caffeic acid phenethyl ester (CAPE), derived from various plant sources, has been shown to ameliorate ischemia/reperfusion (I/R) injury in vivo, and this has been attributed to its ability to reduce the oxidative stress. Here we investigated the cytoprotection of CAPE against menadione (MD)-induced oxidative stress in human umbilical vein endothelial cells (HUVEC) to evaluate potential gene expression involvement. CAPE exhibited dose-dependent cytoprotection of HUVEC that required preincubation. A gene screen with microarrays was performed to identify the potential cytoprotective gene(s) induced by CAPE. Heme oxygenase-1 (HO-1) was highly upregulated by CAPE and this was confirmed with reverse transcriptase polymerase chain reaction (RT-PCR) and western blotting. Keywords: Gene expression in HUVEC, CAPE cytoprotective dose response
Project description:This SuperSeries is composed of the following subset Series: GSE10413: Gene expression profiling of caffeic acid phenethyl ester-treated human umbilical vein endothelial cells-1 GSE10429: Gene expression profiling of caffeic acid phenethyl ester -treated human umbilical vein endothelial cells-2 Keywords: SuperSeries Refer to individual Series
Project description:The neural crest is a dynamic progenitor cell population that arises at the border of neural and non-neural ectoderm. The inductive roles of FGF, Wnt, and BMP at the neural plate border are well established, but the signals required for subsequent neural crest development remain poorly characterized. Here, we conducted a screen in primary zebrafish embryo cultures for chemicals that decrease neural crest formation, as read out by crestin:EGFP expression. We found that the natural product caffeic acid phenethyl ester (CAPE) disrupts neural crest gene expression, migration, and melanocytic differentiation by reducing Sox10 activity. CAPE inhibits PI3K/Akt signaling specifically in FGF-stimulated cells, and neural crest defects in CAPE-treated embryos are suppressed by constitutively active Akt1. Inhibition of Akt activity by constitutively active PTEN similarly decreases crestin expression and Sox10 activity. Our study has identified Akt as a novel intracellular pathway required for neural crest development.
Project description:The neural crest is a dynamic progenitor cell population that arises at the border of neural and non-neural ectoderm. The inductive roles of FGF, Wnt, and BMP at the neural plate border are well established, but the signals required for subsequent neural crest development remain poorly characterized. Here, we conducted a screen in primary zebrafish embryo cultures for chemicals that decrease neural crest formation, as read out by crestin:EGFP expression. We found that the natural product caffeic acid phenethyl ester (CAPE) disrupts neural crest gene expression, migration, and melanocytic differentiation by reducing Sox10 activity. CAPE inhibits PI3K/Akt signaling specifically in FGF-stimulated cells, and neural crest defects in CAPE-treated embryos are suppressed by constitutively active Akt1. Inhibition of Akt activity by constitutively active PTEN similarly decreases crestin expression and Sox10 activity. Our study has identified Akt as a novel intracellular pathway required for neural crest development.
Project description:Caffeic acid phenethyl ester (CAPE), derived from various plant sources, has been shown to ameliorate ischemia/reperfusion (I/R) injury in vivo, and this has been attributed to its ability to reduce the oxidative stress. Here we investigated the cytoprotection of CAPE against menadione (MD)-induced oxidative stress in human umbilical vein endothelial cells (HUVEC) to evaluate potential gene expression involvement. CAPE exhibited dose-dependent cytoprotection of HUVEC that required preincubation. A gene screen with microarrays was performed to identify the potential cytoprotective gene(s) induced by CAPE. Heme oxygenase-1 (HO-1) was highly upregulated by CAPE and this was confirmed with reverse transcriptase polymerase chain reaction (RT-PCR) and western blotting. Keywords: gene expression in HUVEC, CAPE cytoprotective dose response Confluent HUVEC were incubated with cytoprotective dose of CAPE at 5 µg/ml or 0.1% DMSO as vehicle control for 6 hrs. Both treatments were done in triplicates. Total RNA was isolated at the end of the treatment and applied to microarray experiments in order to identify transcriptional response of HUVEC to CAPE. Microarray experiments were based on a two-color reference design using human universal reference RNA to compare results bwtween CAPE treatment and vehicle control groups.
Project description:Caffeic acid phenethyl ester (CAPE), derived from various plant sources, has been shown to ameliorate ischemia/reperfusion (I/R) injury in vivo, and this has been attributed to its ability to reduce the oxidative stress. Here we investigated the cytoprotection of CAPE against menadione (MD)-induced oxidative stress in human umbilical vein endothelial cells (HUVEC) to evaluate potential gene expression involvement. CAPE exhibited dose-dependent cytoprotection of HUVEC that required preincubation. A gene screen with microarrays was performed to identify the potential cytoprotective gene(s) induced by CAPE. Heme oxygenase-1 (HO-1) was highly upregulated by CAPE and this was confirmed with reverse transcriptase polymerase chain reaction (RT-PCR) and western blotting. Keywords: Gene expression in HUVEC, CAPE cytoprotective dose response Confluent HUVEC were incubated with cytoprotective dose of CAPE at 5 µg/ml or 0.1% DMSO as vehicle control for 6 hrs. Both treatments were done in triplicates. Total RNA was isolated at the end of the treatment and applied to microarray experiments in order to identify transcriptional response of HUVEC to CAPE. Microarray experiments were based on a two-color reference design using human universal reference RNA to compare results bwtween CAPE treatment and vehicle control groups.
Project description:SH-SY5Y cells were treated with 6-hydroxydopamine (6-OHDA) to obtain an in vitro PD model. Transcriptome data were collected from both treated and untreated cells.We mapped significantly upregulated genes on a protein-protein interaction network to identify potential drug targets. Drugs targeting the selected drug targets were applied to 6-OHDA treated SH-SY5Y cells. Among the candidate drugs, quercetin and rutin were shown to be neuroprotective by effectively decreasing cell death.