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2 protocols using mab378

1

Immunofluorescence Staining of Embryoid Bodies

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Cell cultures were fixed with 4% paraformaldehyde for 20 min and permeabilized with 0.3% Triton X-100 (Sigma). Primary antibodies were incubated overnight at 4°C in phosphate buffer saline (PBS) plus 10% normal goat serum. Cells were washed three times and secondary antibodies incubated for 2 h in the same solution, washed three times and incubated with Hoechst for nuclei staining. Primary antibodies were used with the following dilutions: Oct 3/4, 1:200 (BD 611202); Sox2, 1:1000 (Millipore AB5603); GFP, 1:1000 (Invitrogen A11122); Olig2, 1:1000 (Millipore MANB50); Islet1, 1:10 (developmental studies hybridoma bank 40.3A4-5 and 40.2D6); TUJ1 (recognizing Tubulin β III), 1:1000 (Covance MRB-435P); Microtubule Associated Protein (MAP2), 1:1000 (Chemicon MAB378); Phospho Histone H3, 1:100 (Cell Signaling 9701S). Alexa Fluor secondary antibodies were used at 1:1000. EBs cultured for 5 days were harvested by gravity, washed with PBS and paraformaldehyde-fixed, cryo-protected by sucrose, tissue tek-embedded, cut in 20 μm slices and mounted in slides for immunofluorescence protocol.
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2

Immunostaining of Neuronal Markers

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Neurons were washed with PBS, fixed with 4% paraformaldehyde in PBS, pH 7.3, for 10–15 min at room temperature and permeabilized in 0.05% Tween20 for 5 min at room temperature. Nonspecific binding was blocked with 5% BSA in PBS solution for 1 h. Then cells were incubated with anti-MAP2 (1:1000, Millipore, #MAB378) and anti-pCaMKII (1:1000, Cell Signaling, #33613) primary antibodies diluted in 2.5% BSA in PBS at 4 °C overnight. After three washing cycles in PBS, cells were incubated in 2.5% BSA in PBS solution with anti-rabbit (Alexa Fluor 594, 1:1000, Invitrogen, #A11012) and anti-mouse (Alexa Fluor 488, 1:1000, Invitrogen, #A11001) for 1 h at room temperature and then washed three times in PBS and visualized by a confocal microscope (ThorLabs).
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