Journal: bioRxiv
Article Title: Derivation of functional retinal endothelial cells from human pluripotent stem cells for therapeutics and modeling
doi: 10.1101/2025.03.04.641453
Figure Lengend Snippet: (A) Representative immunofluorescence images of the OIR mouse retinal tissue at postnatal day 17 (P17), five days after intravitreal injection of PBS or iRECs. Isolectin B4 (magenta), vaso-obliteration VO area (blue), and pathological neovascularization (NV) area (white). Scale bars: 300 µm. (B) Quantification of VO and pathological NV at P17. (C) Representative immunofluorescence images of whole mount retina, cross-sections of the OIR mouse retinal tissue, and 3D reconstructions of mouse vascular regions at P17 for PBS ( top ) and iREC ( bottom ) intravitreal injections. Mouse Isolectin B4 (red) and human UEA1 (green). Arrows depict pathological neovascular tufts and yellow crosshairs demonstrate location of xz and yz planes. Scale bars: 500 µm, 100 µm, and 25 µm, (left to right). (D) An immunofluorescence cross-sectional image of lumenized iREC vascular networks integrating with OIR mouse vasculature tissue on P17. Mouse Isolectin B4 (red) and human UEA1 (green). Asterisks denote lumens of human/mouse hybrid vasculature. Scale bar: 50 µm. (E) Quantification of mouse vascular network segment volume and lumen diameter across PBS and iREC injected groups. All quantifications are n = 8.
Article Snippet: The retinas were then incubated with DyLight 649-conjugated Griffonia Simplicifolia Lectin I (GSL I) Isolectin B4 (Vector Laboratories) and Rhodamine-conjugated Ulex Europaeus Agglutinin (UEA 1, Vector Laboratories) overnight at 4°C in 5% normal goat serum containing 0.3% Triton X-100 in PBS.
Techniques: Immunofluorescence, Injection