Journal: JCI Insight
Article Title: TFEB-mediated lysosomal exocytosis alleviates high-fat diet–induced lipotoxicity in the kidney
doi: 10.1172/jci.insight.162498
Figure Lengend Snippet: ( A and B ) Representative electron micrographs of the kidneys ( A ) and the urine pellets ( B ) of nonobese and obese Tfeb fl/fl mice ( n = 2–3). ( C ) Urinary lipidomics of nonobese and obese mice ( n = 5 or 7). Data are presented as the total amount of each lipid species normalized to urine creatinine concentration. Bars: 5 μm ( A and B ) and 500 nm ( B , magnified image). Values represent means ± SEM. Statistically significant differences: # P < 0.05 versus nonobese mice ( C , 2-tailed Student’s t test). BM, basement membrane; MLB, multilamellar body; TL, tubular lumen; N, nucleus; BMP, bis(monoacylglycerol) phosphate; PC, phosphatidylcholine; PE, phosphatidylethanolamine; PI, phosphatidylinositol; PS, phosphatidylserine; PG, phosphatidylglycerol; LPC, lysophosphatidylcholine; LPE, lysophosphatidylethanolamine; SM, sphingomyelin; Cer, ceramide; HexCer, hexose ceramide; LacCer, lactosylceramide; FA, fatty acid; MG, monoacylglycerol; DG, diacylglycerol; TG, triacylglycerol; CE, cholesterylester.
Article Snippet: To evaluate ceramide toxicity, PTECs were treated with C 2 -ceramide (MilliporeSigma, A7191) for 12 hours.
Techniques: Concentration Assay, Membrane