Journal: Frontiers in Cell and Developmental Biology
Article Title: Cecal growth factors promote enteric neurosphere formation and hindgut colonization in the avian model
doi: 10.3389/fcell.2025.1681844
Figure Lengend Snippet: Isolation, characterization and differentiation of chicken enteric neurospheres. Schematic figure of avian enteric neurosphere generation (A) . Brightfield images show examples of neurospheres generated from E8 ENSCs that emerged 1, 3, and 7 days in GDNF-containing medium (B–D) . Representative immunofluorescence images of 7-day-old neurospheres generated from E8 chicken intestine (E–G) . Samples were cultured under three different conditions: Exp.1: control medium ( (E) , CTRL), Exp. 2: GDNF containing cell culture media ( (F) , GDNF), and Exp.3: GWEN ( (G) , ceca-derived mesenchymal growth factors: GDNF, WNT11, ET-3, Noggin) supplemented media. Immunofluorescence of cross-sections confirms the presence of neurons expressing TUJ1, and neural crest cells expressing PHOX2B. Compared to CTRL and GDNF-only conditions, GWEN treatment resulted in a robust increase in TUJ1+/PHOX2B+ cell aggregates on the surface of the neurosphere and single Phox2b+ cells in the center of the aggregates. The inset shows a magnified view of a PHOX2B+/TUJ1+ aggregate, indicating enhanced differentiation of neural crest derivatives (E–G) . Scale bar = 100 µm. CTRL, control; NS, neurosphere.
Article Snippet: To assess the effect of ceca-specific mesenchymal factors on enteric neural stem cells, the culture medium was further supplemented with 10 ng/mL glial cell line-derived neurotrophic factor (GDNF; R&D Systems, 212-GD-010), 200 ng/mL WNT11 (Origene, TP761904), 250 ng/mL endothelin-3 (ET-3; R&D Systems, 1,162/100U), and 100 ng/mL Noggin (R&D Systems, 6997-NG-025).
Techniques: Isolation, Generated, Immunofluorescence, Cell Culture, Control, Derivative Assay, Expressing