PMID- 36555236 OWN - NLM STAT- MEDLINE DCOM- 20230103 LR - 20230501 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 23 IP - 24 DP - 2022 Dec 9 TI - Decreased Expression of Soluble Epoxide Hydrolase Suppresses Murine Choroidal Neovascularization. LID - 10.3390/ijms232415595 [doi] LID - 15595 AB - Neovascular or "wet" age-related macular degeneration (nAMD) is a leading cause of blindness among older adults. Choroidal neovascularization (CNV) is a major pathological feature of nAMD, in which abnormal new blood vessel growth from the choroid leads to irreversible vision loss. There is a critical need to develop novel therapeutic strategies to address limitations of the current anti-vascular endothelial growth factor biologics. Previously, we identified soluble epoxide hydrolase (sEH) as a possible therapeutic target for CNV through a forward chemical genetic approach. The purpose of this study was to validate sEH as a target by examining retinal expression of sEH protein and mRNA by immunohistochemistry and RNAscope in situ hybridization, respectively, and to assess the efficacy of an adeno-associated virus (AAV) vector designed to knock down the sEH gene, Ephx2, in the murine laser-induced (L-) CNV model. nAMD patient postmortem eye tissue and murine L-CNV showed overexpression of sEH in photoreceptors and retinal pigment epithelial cells. Ephx2 knockdown significantly reduced CNV and normalized mRNA expression levels of CNV-related inflammatory markers. Thus, this study further establishes sEH as a promising therapeutic target against CNV associated with nAMD. FAU - Park, Bomina AU - Park B AUID- ORCID: 0000-0003-1440-7066 AD - Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. AD - Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. FAU - Sardar Pasha, Sheik Pran Babu AU - Sardar Pasha SPB AD - Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. FAU - Sishtla, Kamakshi L AU - Sishtla KL AUID- ORCID: 0000-0002-1525-0155 AD - Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. FAU - Hartman, Gabriella D AU - Hartman GD AUID- ORCID: 0000-0002-2061-411X AD - Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. AD - Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA. FAU - Qi, Xiaoping AU - Qi X AD - Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA. FAU - Boulton, Michael E AU - Boulton ME AUID- ORCID: 0000-0002-0796-1766 AD - Department of Ophthalmology and Visual Sciences, University of Alabama at Birmingham, Birmingham, AL 35294, USA. FAU - Corson, Timothy W AU - Corson TW AUID- ORCID: 0000-0002-1402-7875 AD - Eugene and Marilyn Glick Eye Institute, Department of Ophthalmology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. AD - Department of Pharmacology and Toxicology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. AD - Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA. AD - Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN 46202, USA. LA - eng GR - R01EY031939/EY/NEI NIH HHS/United States GR - R01EY025641/EY/NEI NIH HHS/United States GR - R01 EY025641/EY/NEI NIH HHS/United States GR - R01 EY031939/EY/NEI NIH HHS/United States PT - Journal Article DEP - 20221209 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - EC 3.3.2.- (Epoxide Hydrolases) RN - 0 (RNA, Messenger) RN - EC 3.3.2.10 (Ephx2 protein, mouse) SB - IM MH - Animals MH - Humans MH - Mice MH - Choroid/metabolism MH - *Choroidal Neovascularization/metabolism MH - Disease Models, Animal MH - *Epoxide Hydrolases/genetics/metabolism MH - Mice, Inbred C57BL MH - Retina/metabolism MH - RNA, Messenger/genetics/metabolism PMC - PMC9779010 OTO - NOTNLM OT - RNAscope OT - adenoassociated viral vector OT - choroidal neovascularization OT - neovascular age-related macular degeneration OT - soluble epoxide hydrolase COIS- T.W.C. is a named inventor on patent applications related to this work and has received research funding and consulting fees for related work from Evergreen Therapeutics. This work received in-kind support (AAV vectors) from Biomotiv LLC. The other authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results. EDAT- 2022/12/24 06:00 MHDA- 2022/12/27 06:00 PMCR- 2022/12/09 CRDT- 2022/12/23 01:32 PHST- 2022/10/15 00:00 [received] PHST- 2022/12/02 00:00 [revised] PHST- 2022/12/06 00:00 [accepted] PHST- 2022/12/23 01:32 [entrez] PHST- 2022/12/24 06:00 [pubmed] PHST- 2022/12/27 06:00 [medline] PHST- 2022/12/09 00:00 [pmc-release] AID - ijms232415595 [pii] AID - ijms-23-15595 [pii] AID - 10.3390/ijms232415595 [doi] PST - epublish SO - Int J Mol Sci. 2022 Dec 9;23(24):15595. doi: 10.3390/ijms232415595.