Journal: Materials Today Bio
Article Title: Hybrid construction of tissue-engineered nerve graft using skin derived precursors induced neurons and Schwann cells to enhance peripheral neuroregeneration
doi: 10.1016/j.mtbio.2024.101196
Figure Lengend Snippet: Histological observation and morphometric analysis of the target muscles. (a, b) Histograms showing the wet weight ratio of total anterior tibialis and gastrocnemius muscle, and the cross-sectional area of gastrocnemius muscle fibers. Data are expressed as means ± SD. * p < 0.05 versus scaffold group, § p < 0.05 versus non-grafted group. (c, e, g, i, k) Masson's trichrome staining images are obtained at 12 weeks post-surgery, of the sectioned gastrocnemius muscle on the injured side in TENG (c), autograft (e), scaffold (g), non-grafted groups (i) and the contralateral uninjured side (k, normal), respectively. Scale bar, 50 mm. Photomicrographs (d, f, h, j, l and d’, f’, h’, j’, l’) of longitudinal sections of gastrocnemius muscles at the injured side after α-bungarotoxin staining of motor endplates (red) and NF200 (green) positive regenerated axons are obtained in three nerve grafting groups, nongrafted group and the contralateral uninjured side muscle at 12 weeks. Scale bar: 50 μm for low magnification images, and 20 μm for high magnification images. Histograms showing the cross-sectional area of gastrocnemius muscle fibers (m) and average percentage of collagen fiber area (n). Data are expressed as means ± SD. * p < 0.05 versus scaffold group, § p < 0.05 versus non-grafted group and # p < 0.05 versus normal group.
Article Snippet: For immunofluorescent double-staining, rabbit anti-S100β polyclonal antibody (1:50 dilution) and mouse anti-neurofilament-200 (NF200) monoclonal antibody (1:200 dilution, both antibodies were from Sigma) were applied to nerve sections to allow incubation at 4 °C overnight, followed by further reaction with the secondary antibody (Goat anti-Mouse IgG-Alex-488, 1:500 and Donkey anti-Rabbit IgG-Cy3, 1: 1000) at 4 °C overnight, and nerve sections were observed under a confocal laser scanning microscope (TCS SP2, Leica).
Techniques: Muscles, Staining