PMID- 30547709 OWN - NLM STAT- MEDLINE DCOM- 20200629 LR - 20200629 IS - 1557-7732 (Electronic) IS - 1080-7683 (Linking) VI - 35 IP - 2 DP - 2019 Mar TI - In Vivo Choroidal Neovascularization and Macrophage Studies Provide Further Evidence for a Broad Role of Prostacyclin in Angiogenesis. PG - 98-105 LID - 10.1089/jop.2018.0077 [doi] AB - PURPOSE: The purpose of these studies was (1) to investigate the ability of human M1 phenotype macrophages to secrete vascular endothelial growth factor (VEGF) and the influence of prostacyclin receptor (IP) stimulation (2) to evaluate the contribution of the proangiogenic prostanoid prostacyclin to experimental choroidal neovascularization Methods: Human macrophages derived from primary blood mononuclear cells were functionally biased toward the M1 phenotype by using tumor necrosis factor alpha (TNFalpha). Experimental choroidal neovascularization was produced by laser photocoagulation. Antagonist drugs RO-3244794 (IP antagonist) and GW 627368 (EP(4) antagonist) were administered according to an optimal dosing regimen that was predetermined by bioavailability studies. RESULTS: IP receptor stimulation had diametrically opposed effects on VEGF release compared with reported data on cytokine/chemokine secretion from human macrophages. For example, the IP agonist cicaprost stimulated VEGF secretion although it inhibits monocyte chemoattractant protein-1 (MCP-1) secretion: both would favor a proangiogenic effect. The IP receptor antagonist RO-3244794 produced an approximately 20% statistically significant reduction in the neovascularized lesion area in the choroidal neovascularization model, which was a similar level to that produced by the EP(4) antagonist GW 627368. Combining the 2 drugs produced a statistically significant reduction in neovascularization but only of slightly greater magnitude than that obtained with each antagonist administered alone. CONCLUSIONS: IP receptor stimulation potently and highly efficaciously promoted VEGF release from human M1 macrophages, indicating a possible contribution of the M1 macrophage subtype to VEGF-induced choroidal neovascularization. Studies in living animals suggest that prostacyclin and its target IP receptor contribute to choroidal neovascularization, although to a more modest extent than might have been expected. FAU - Woodward, David F AU - Woodward DF AD - Department of Biological Sciences, Allergan, Inc. , Irvine, California. FAU - Wang, Jenny W AU - Wang JW AD - Department of Biological Sciences, Allergan, Inc. , Irvine, California. FAU - Ni, Ming AU - Ni M AD - Department of Biological Sciences, Allergan, Inc. , Irvine, California. FAU - Bauer, Alex J AU - Bauer AJ AD - Department of Biological Sciences, Allergan, Inc. , Irvine, California. FAU - Poloso, Neil J AU - Poloso NJ AD - Department of Biological Sciences, Allergan, Inc. , Irvine, California. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20181214 PL - United States TA - J Ocul Pharmacol Ther JT - Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics JID - 9511091 RN - 0 (Antihypertensive Agents) RN - 0 (CCL2 protein, human) RN - 0 (Chemokine CCL2) RN - 0 (Lipopolysaccharides) RN - 0 (Ophthalmic Solutions) RN - 0 (Vascular Endothelial Growth Factors) RN - DCR9Z582X0 (Epoprostenol) SB - IM MH - Animals MH - Antihypertensive Agents/*pharmacology MH - Cells, Cultured MH - Chemokine CCL2/analysis/deficiency/metabolism MH - Choroidal Neovascularization/*drug therapy/metabolism/pathology MH - Disease Models, Animal MH - Epoprostenol/*pharmacology MH - Humans MH - Lipopolysaccharides/pharmacology MH - Macrophages/*drug effects/metabolism/pathology MH - Male MH - Mice MH - Mice, Knockout MH - Ophthalmic Solutions/*pharmacology MH - Rats MH - Rats, Sprague-Dawley MH - Vascular Endothelial Growth Factors/analysis/metabolism OTO - NOTNLM OT - VEGF OT - choroid OT - neovascularization OT - prostacyclin OT - prostaglandin E OT - retina EDAT- 2018/12/15 06:00 MHDA- 2020/07/01 06:00 CRDT- 2018/12/15 06:00 PHST- 2018/12/15 06:00 [pubmed] PHST- 2020/07/01 06:00 [medline] PHST- 2018/12/15 06:00 [entrez] AID - 10.1089/jop.2018.0077 [doi] PST - ppublish SO - J Ocul Pharmacol Ther. 2019 Mar;35(2):98-105. doi: 10.1089/jop.2018.0077. Epub 2018 Dec 14.