Journal: Neural Regeneration Research
Article Title: Mesenchymal stem cell–derived small extracellular vesicles enhance the therapeutic effect of retinal progenitor cells in retinal degenerative disease rats
doi: 10.4103/NRR.NRR-D-23-02108
Figure Lengend Snippet: Transplantation of RPCs, with and without M-sEVs, preserves visual function and protects photoreceptors from apoptosis in RCS rats. (A) Representative scotopic ERG waveforms measured at a light intensity of 3 log (cd·m/s 2 ) in the RPCs + M-sEVs, RPCs, PBS, and untreated groups at 2, 4, 6, and 8 weeks post injection. (B) Statistical analysis of the amplitudes of ERG a- and b-waves at four time points in each group. (C) Representative images showing ONL thickness in the four groups at 2, 4, 6, and 8 weeks post injection. Scale bar: 50 μm. (D) Statistical analysis of ONL thickness at four time points in the four groups. Data are expressed as means ± SD ( n = 5 eyes per group); * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.001 (Welch’s one-way analysis of variance followed by Dunnett’s T3 multiple-comparison test). DAPI: 4’,6-Diamidino-2-phenylindole; ERG: electroretinogram; GFP: green fluorescent protein; INL: inner nuclear layer; M-sEVs: mesenchymal stem cell–small extracellular vesicles; ONL: outer nuclear layer; PBS: phosphate-buffered saline; RPCs: retinal progenitor cells; RCS: Royal College of Surgeons; w: weeks.
Article Snippet: For immunofluorescence staining, the frozen sections and RPCs were rinsed in 0.01 M PBS and then blocked using a 0.3% solution of Triton X-100 (Beyotime, Cat# P0096) and 3% bovine serum albumin for 30 minutes at 37°C.
Techniques: Transplantation Assay, Injection, Comparison, Saline