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We studied the role of Hif2\u03b1 in hematopoietic cells for pathological retina neovascularization in the murine model of ROP, the oxygen\u2010induced retinopathy (OIR) model. Hematopoietic\u2010specific deficiency of Hif2\u03b1 ameliorated pathological neovascularization in the OIR model, which was accompanied by enhanced endothelial cell apoptosis. That latter finding was associated with up\u2010regulation of the apoptosis\u2010inducer FasL in Hif2\u03b1\u2010deficient microglia. Consistently, pharmacological inhibition of the FasL reversed the reduced pathological neovascularization from hematopoietic\u2010specific Hif2\u03b1 deficiency. Our study found that the hematopoietic cell Hif2\u03b1 contributes to pathological retina angiogenesis. Our findings not only provide novel insights regarding the complex interplay between immune cells and endothelial cells in hypoxia\u2010driven retina neovascularization but also may have therapeutic implications for proliferative retinopathies.\u2014Korovina, I., Neuwirth, A., Sprott, D., Weber, S., Sardar Pasha, S. P. B., Gercken, B., Breier, G., El\u2010Armouche, A., Deussen, A., Karl, M. O., Wielockx, B., Chavakis, T., Klotzsche\u2010von Ameln, A. Hematopoietic hypoxia\u2010inducible factor 2\u03b1 deficiency ameliorates pathological retinal neovascularization via modulation of endothelial cell apoptosis. FASEB J. 33, 1758\u20131770 (2019).\n                    <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"http:\/\/www.fasebj.org\">www.fasebj.org<\/jats:ext-link>\n                  <\/jats:p>","DOI":"10.1096\/fj.201800430r","type":"journal-article","created":{"date-parts":[[2018,8,29]],"date-time":"2018-08-29T12:11:19Z","timestamp":1535544679000},"page":"1758-1770","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Hematopoietic hypoxia\u2010inducible factor 2\u03b1 deficiency ameliorates pathological retinal neovascularization\n                    <i>via<\/i>\n                    modulation of endothelial cell apoptosis"],"prefix":"10.1096","volume":"33","author":[{"given":"Irina","family":"Korovina","sequence":"first","affiliation":[{"name":"Institute for Clinical Chemistry and Laboratory Medicine Faculty of Medicine Technische Universit\u00e4t Dresden Dresden 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