Figure 1

Neuronal marker expression in Cb Cln3 +/+ cells Characterization of CbCln3 +/+ cells by immunofluorescence with marker antibodies is shown. CbCln3 +/+ precursors exhibit nestin expression (a) but not GFAP expression (b), consistent with a neuronal precursor identity. Upon stimulation with a differentiation cocktail (see Methods), CbCln3 +/+ cells achieved neuron-like morphology, with rounded cell bodies and extension of processes, and MAP2 (c) and NeuN (d) expression was increased. CbCln3 +/+ cells are negative for the Purkinje neuron marker calbindin (e). CbCln3 +/Δex7/8 and CbCln3 Δex7/8/Δex7/8 cell lines exhibited identical marker immunofluorescence results. a, b) 20 × magnification; c, d, e) 40 × magnification.