{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,28]],"date-time":"2026-02-28T18:16:50Z","timestamp":1772302610952,"version":"3.50.1"},"reference-count":44,"publisher":"American Physiological Society","issue":"9","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Renal Physiology"],"published-print":{"date-parts":[[2016,5,1]]},"abstract":"<jats:p>Thrombotic microangiopathy (TMA) is a disorder characterized by microvascular occlusion that can lead to thrombocytopenia, hemolytic anemia, and glomerular damage. Complement activation is the central event in most cases of TMA. Primary forms of TMA are caused by mutations in genes encoding components of the complement or regulators of the complement cascade. Recently, we and others have described a genetic form of TMA caused by mutations in the gene diacylglycerol kinase-\u03b5 ( DGKE) that encodes the lipid kinase DGK<jats:sub>\u03b5<\/jats:sub>(Lemaire M, Fremeaux-Bacchi V, Schaefer F, Choi MR, Tang WH, Le Quintrec M, Fakhouri F, Taque S, Nobili F, Martinez F, Ji WZ, Overton JD, Mane SM, Nurnberg G, Altmuller J, Thiele H, Morin D, Deschenes G, Baudouin V, Llanas B, Collard L, Majid MA, Simkova E, Nurnberg P, Rioux-Leclerc N, Moeckel GW, Gubler MC, Hwa J, Loirat C, Lifton RP. Nat Genet 45: 531\u2013536, 2013; Ozaltin F, Li BH, Rauhauser A, An SW, Soylemezoglu O, Gonul II, Taskiran EZ, Ibsirlioglu T, Korkmaz E, Bilginer Y, Duzova A, Ozen S, Topaloglu R, Besbas N, Ashraf S, Du Y, Liang CY, Chen P, Lu DM, Vadnagara K, Arbuckle S, Lewis D, Wakeland B, Quigg RJ, Ransom RF, Wakeland EK, Topham MK, Bazan NG, Mohan C, Hildebrandt F, Bakkaloglu A, Huang CL, Attanasio M. J Am Soc Nephrol 24: 377\u2013384, 2013). DGK<jats:sub>\u03b5<\/jats:sub>is unrelated to the complement pathway, which suggests that unidentified pathogenic mechanisms independent of complement dysregulation may result in TMA. Studying Dgke knockout mice may help to understand the pathogenesis of this disease, but no glomerular phenotype has been described in these animals so far. Here we report that Dgke null mice present subclinical microscopic anomalies of the glomerular endothelium and basal membrane that worsen with age and develop glomerular capillary occlusion when exposed to nephrotoxic serum. We found that induction of cyclooxygenase-2 and of the proangiogenic prostaglandin E<jats:sub>2<\/jats:sub>are impaired in Dgke null kidneys and are associated with reduced expression of the antithrombotic cell adhesion molecule platelet endothelial cell adhesion molecule-1\/CD31 in the glomerular endothelium. Notably, prostaglandin E<jats:sub>2<\/jats:sub>supplementation was able to rescue motility defects of Dgke knockdown cells in vitro and to restore angiogenesis in a test in vivo. Our results unveil an unexpected role of Dgke in the induction of cyclooxygenase-2 and in the regulation of glomerular prostanoids synthesis under stress.<\/jats:p>","DOI":"10.1152\/ajprenal.00431.2015","type":"journal-article","created":{"date-parts":[[2016,2,18]],"date-time":"2016-02-18T04:14:32Z","timestamp":1455768872000},"page":"F895-F908","source":"Crossref","is-referenced-by-count":30,"title":["Loss of diacylglycerol kinase epsilon in mice causes endothelial distress and impairs glomerular Cox-2 and PGE<sub>2<\/sub>production"],"prefix":"10.1152","volume":"310","author":[{"given":"Jili","family":"Zhu","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas;"},{"name":"Department of Nephrology, Renmin Hospital, Wuhan University, Hubei, Wuhan, China;"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Moumita","family":"Chaki","sequence":"additional","affiliation":[{"name":"Department 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