Immunohistochemical (IH) assay was performed as described previously (Lacroix et al., 2014 (link)). Tissue sections were first blocked with 3% goat serum and then incubated with rabbit anti-BAF45D (1:100, Proteintech, Chicago, IL, United States), rabbit-anti-NESTIN (1:100, Sigma, St. Louis, MO, United States), mouse anti-NEUN (1:100, Millipore, Belecula, CA, United States) and mouse anti-beta-III-tubulin (1:200, Arigo) antibodies overnight at 4°C. Positive immunostaining was then detected using a NIKON Eclipse 80i fluorescent microscope and a NIKON Eclipse Ti-S inverted fluorescence microscope. Specific details of the animals and tissues used for IH are given in Supplementary Table S1.
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