title: Lycopene inhibits PDGF-BB-induced retinal pigment epithelial cell migration by suppression of PI3K/Akt and MAPK pathways.
abstract: Retinal pigment epithelial (RPE) cells play a dominant role in the development of proliferative vitreoretinopathy (PVR), which is the leading cause of failure in retinal reattachment surgery. Several studies have shown that platelet-derived growth factor (PDGF) exhibits chemotaxis and proliferation effects on RPE cells in PVR. In this study, the inhibitory effect of lycopene on PDGF-BB-induced ARPE19 cell migration is examined. In electric cell-substrate impedance sensing (ECIS) and Transwell migration assays, significant suppression of PDGF-BB-induced ARPE19 cell migration by lycopene is observed. Cell viability assays show no cytotoxicity of lycopene on RPE cells. Lycopene shows no effect on ARPE19 cell adhesion and is found to inhibit PDGF-BB-induced tyrosine phosphorylation and the underlying signaling pathways of PI3K, Akt, ERK and p38 activation. However, PDGF-BB and lycopene show no effects on JNK activation. Taken together, our results demonstrate that lycopene inhibits PDGF-BB-induced ARPE19 cell migration through inhibition of PI3K/Akt, ERK and p38 activation.
authors: Fu Jen Catholic University, Taipei Hsien, Taiwan, ROC.
authors: Chi-Ming
authors: CM
authors: Chan
authors: Jia-You
authors: JY
authors: Fang
authors: Hsin-Huang
authors: HH
authors: Lin
authors: Chi-Yea
authors: CY
authors: Yang
authors: Chi-Feng
authors: CF
authors: Hung
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D000077214:Becaplermin; D002338:Carotenoids / Q000494:pharmacology*; D002460:Cell Line; D002465:Cell Movement / Q000187:drug effects*; D006801:Humans; D000077276:Lycopene; D020929:Mitogen-Activated Protein Kinase Kinases / Q000037:antagonists & inhibitors; D000081082:Phosphoinositide-3 Kinase Inhibitors; D010766:Phosphorylation / Q000187:drug effects; D010982:Platelet-Derived Growth Factor / Q000037:antagonists & inhibitors / Q000494:pharmacology / Q000502:physiology*; D051057:Proto-Oncogene Proteins c-akt / Q000037:antagonists & inhibitors; D020574:Proto-Oncogene Proteins c-sis; D055213:Retinal Pigment Epithelium / Q000187:drug effects* / Q000502:physiology
chemical_list: D000975:Antioxidants; D000081082:Phosphoinositide-3 Kinase Inhibitors; D010982:Platelet-Derived Growth Factor; D020574:Proto-Oncogene Proteins c-sis; D000077214:Becaplermin; D002338:Carotenoids; D051057:Proto-Oncogene Proteins c-akt; D020929:Mitogen-Activated Protein Kinase Kinases; D000077276:Lycopene