PMID- 24624338 OWN - NLM STAT- MEDLINE DCOM- 20150616 LR - 20211021 IS - 2213-2317 (Print) IS - 2213-2317 (Electronic) IS - 2213-2317 (Linking) VI - 2 DP - 2014 TI - Inhibition of APE1/Ref-1 redox activity rescues human retinal pigment epithelial cells from oxidative stress and reduces choroidal neovascularization. PG - 485-94 LID - 10.1016/j.redox.2014.01.023 [doi] AB - The effectiveness of current treatment for age related macular degeneration (AMD) by targeting one molecule is limited due to its multifactorial nature and heterogeneous pathologies. Treatment strategy to target multiple signaling pathways or pathological components in AMD pathogenesis is under investigation for better clinical outcome. Inhibition of the redox function of apurinic endonuclease 1/redox factor-1 (APE1) was found to suppress endothelial angiogenesis and promote neuronal cell recovery, thereby may serve as a potential treatment for AMD. In the current study, we for the first time have found that a specific inhibitor of APE1 redox function by a small molecule compound E3330 regulates retinal pigment epithelium (RPEs) cell response to oxidative stress. E3330 significantly blocked sub-lethal doses of oxidized low density lipoprotein (oxLDL) induced proliferation decline and senescence advancement of RPEs. At the same time, E3330 remarkably decreased the accumulation of intracellular reactive oxygen species (ROS) and down-regulated the productions of monocyte chemoattractant protein-1 (MCP-1) and vascular endothelial growth factor (VEGF), as well as attenuated the level of nuclear factor-kappaB (NF-kappaB) p65 in RPEs. A panel of stress and toxicity responsive transcription factors that were significantly upregulated by oxLDL was restored by E3330, including Nrf2/Nrf1, p53, NF-kappaB, HIF1, CBF/NF-Y/YY1, and MTF-1. Further, a single intravitreal injection of E3330 effectively reduced the progression of laser-induced choroidal neovascularization (CNV) in mouse eyes. These data revealed that E3330 effectively rescued RPEs from oxidative stress induced senescence and dysfunctions in multiple aspects in vitro, and attenuated laser-induced damages to RPE-Bruch׳s membrane complex in vivo. Together with its previously established anti-angiogenic and neuroprotection benefits, E3330 is implicated for potential use for AMD treatment. FAU - Li, Y AU - Li Y AD - Department of Ophthalmology, Henry Ford Health System, 1 Ford Place 5D, Detroit, MI, United States ; Department of Ophthalmology, Xijing Hospital, Fourth Military Medical University, Xi׳an, Shanxi, People׳s Republic of China. FAU - Liu, X AU - Liu X AD - Department of Ophthalmology, Henry Ford Health System, 1 Ford Place 5D, Detroit, MI, United States. FAU - Zhou, T AU - Zhou T AD - Department of Ophthalmology, Henry Ford Health System, 1 Ford Place 5D, Detroit, MI, United States. FAU - Kelley, M R AU - Kelley MR AD - Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, United States. FAU - Edwards, P AU - Edwards P AD - Department of Ophthalmology, Henry Ford Health System, 1 Ford Place 5D, Detroit, MI, United States. FAU - Gao, H AU - Gao H AD - Department of Ophthalmology, Henry Ford Health System, 1 Ford Place 5D, Detroit, MI, United States. FAU - Qiao, X AU - Qiao X AD - Department of Ophthalmology, Henry Ford Health System, 1 Ford Place 5D, Detroit, MI, United States. LA - eng GR - R01 CA121168/CA/NCI NIH HHS/United States GR - R01 CA167291/CA/NCI NIH HHS/United States GR - CA121168/CA/NCI NIH HHS/United States GR - CA16729/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20140221 PL - Netherlands TA - Redox Biol JT - Redox biology JID - 101605639 RN - 0 (Benzoquinones) RN - 0 (Neuroprotective Agents) RN - 0 (Propionates) RN - 136164-66-4 (E 3330) RN - EC 4.2.99.18 (APEX1 protein, human) RN - EC 4.2.99.18 (DNA-(Apurinic or Apyrimidinic Site) Lyase) SB - IM MH - Animals MH - Benzoquinones/*administration & dosage MH - Cellular Senescence/drug effects MH - Choroidal Neovascularization/*drug therapy/metabolism/pathology MH - DNA-(Apurinic or Apyrimidinic Site) Lyase/*antagonists & inhibitors/metabolism MH - Disease Models, Animal MH - Gene Expression Regulation/drug effects MH - Humans MH - Intravitreal Injections MH - Mice MH - Neuroprotective Agents/*administration & dosage MH - Oxidative Stress/*drug effects MH - Propionates/*administration & dosage MH - Retinal Pigment Epithelium/drug effects/*metabolism/pathology PMC - PMC3949093 OTO - NOTNLM OT - AMD, age related macular degeneration OT - AP-1, activator protein 1 OT - APE1, apurinic endonuclease 1/redox factor-1 OT - APE1/Ref-1redox function OT - Age-related macular degeneration. OT - AhR, aryl hydrocarbon receptor OT - ApoE, apolipoprotein E OT - CBF/NF-Y/YY1, CCAAT binding factor/nuclear factor-Y/Yin Yang 1 OT - CECs, choroidal endothelial cells OT - CNV, choroidal neovascularization OT - DCFH-DA, dichlorodihydrofluorescin diacetate OT - DMSO, dimethylsulphoxide OT - E3330 OT - Fluc, firefly luciferase OT - HIF-1alpha, hypoxia inducible factor-1alpha OT - HSF1, heat-shock factor 1 OT - IkappaB-alpha, inhibitory NF-kappaB-alpha OT - MCP-1, monocyte chemoattractant protein-1 OT - MTF1, metal regulatory transcription factor 1 OT - NF-kappaB, nuclear factor-kappaB OT - Nox, NADPH oxidase OT - Nrf, nuclear factor erythroid-2-related factor OT - Oxidative stress OT - RNV, retinal neovascularization OT - ROS, reactive oxygen species OT - RPE, retinal pigment epithelium OT - RVECs, retinal vascular endothelial cells OT - Retinal pigment epithelial cell OT - Rluc, renilla luciferase OT - SA-beta-gal, senescence associated beta-gal OT - SDS-PAGE, sodium dodecyl sulfate-polyacrylamide gel electrophoresis OT - TUNEL, TdT mediated dUTP-fluorescein nick end-labeling OT - Transcription factor OT - VEGF, vascular endothelial growth factor OT - oxLDL, oxidized low density lipoprotein OT - redox, reduction/oxidation EDAT- 2014/03/14 06:00 MHDA- 2014/03/14 06:01 PMCR- 2014/02/21 CRDT- 2014/03/14 06:00 PHST- 2013/12/16 00:00 [received] PHST- 2014/01/29 00:00 [revised] PHST- 2014/01/31 00:00 [accepted] PHST- 2014/03/14 06:00 [entrez] PHST- 2014/03/14 06:00 [pubmed] PHST- 2014/03/14 06:01 [medline] PHST- 2014/02/21 00:00 [pmc-release] AID - S2213-2317(14)00038-X [pii] AID - 10.1016/j.redox.2014.01.023 [doi] PST - epublish SO - Redox Biol. 2014 Feb 21;2:485-94. doi: 10.1016/j.redox.2014.01.023. eCollection 2014.