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5 protocols using sox2 y 17

1

Immunofluorescence Staining of Stem Cell Markers

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Cells were fixed in 4% paraformaldehyde for 20 min at room
temperature and then incubated in blocking buffer (PBS containing
5%BSA and 0.2% Triton X-100) at 37 °C for 1 hr.
Cells were then incubated with primary antibodies diluted in blocking buffer
at 4 °C overnight followed by incubation with secondary antibodies
diluted in blocking buffer at 37 °C for 1 hr. Nuclei were stained
with Hoechst33342 (Invitrogen, 1:10000). Primary antibodies used include the
following: Oct4 (C-10, Santa Cruz, 1:200), Sox2 (Y-17, Santa Cruz, 1:200),
GATA4 (G-4, Santa Cruz, 1:200), Nanog (AF2729, R&D Systems, 1:200),
TUJ1 (Covance, Princeton, NJ, 1:500), Myosin (MF-20, DSHB, 1:50). Alexa
Flour fluorescent secondary antibodies (Invitrogen) were used at a 1:2000
dilution.
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2

Immunohistochemistry of Neural Markers

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The following primary antibodies were used for section and whole mount immunohistochemistry, at the dilutions indicated: rabbit anti-Fbx2 (1:300, Kato et al., 2005 (link), gift of A. Kato and D. Bredt), goat anti-Sox2 (1:300, Santa Cruz Biotechnology, Sox2 Y-17, cat. no. SC-17320); goat anti-Sox10 (1:100, Santa Cruz Biotechnology, Sox10 N-20, SC-17342); mouse anti-Tuj1 (1:2000, Millipore, Ms X beta III tubulin, MAB5564); goat anti-Jag1 (1:300 Santa Cruz Biotechnology, Jag1 C-20, SC-6011); rabbit anti-COL9A2 (1:100, Atlas Antibodies, HPA056316), and rabbit anti-Pax2 (1:100, Covance).
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3

Antibody Panel for Protein Analysis

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The following antibodies were used: ERBB2 (Neu C-18, rabbit polyclonal, Santa Cruz Biotechnology #SC284); phosphor-ERBB2 (P-Neu Try1248, rabbit polyclonal, Santa Cruz #SC12352); phosphor-PI3K (P-PI3-Kinase P85α, rabbit polyclonal, Santa Cruz #SC12929); β-ACTIN (BA3R, mouse monoclonal, ThermoFisher Scientific #MA5–15739); SOX2 (Y-17, goat polyclonal, Santa Cruz #SC17320); MYO7A (H-60, rabbit polyclonal, Santa Cruz #SC25834); JAG1 (C-20, goat polyclonal, Santa Cruz #SC6011); GFP (chicken polyclonal, Abcam, ab13970); RFP (rabbit polyclonal, Rockland #600-401-379); OCM (goat polyclonal, N-19, Santa Cruz #SC7446); PVALB (mouse monoclonal, EMD Millipore #MAB1572). Secondary antibodies were purchased from Jackson Immunoresearch. We used fluorescently-conjugated donkey secondaries and horseradish peroxidase (HRP) conjugated goat secondaries.
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4

Immunofluorescence Staining of Stem Cells

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Cells were fixed, stained and imaged as previously described [27 (link)]. Primary antibodies used were: OCT4 (1;200; Santa Cruz Biotechnology, Dallas, TX, USA; sc-5279), NANOG (1:100; Abcam, Cambridge, UK; ab21624), SOX2(Y-17) (1:200; Santa Cruz Biotechnology, Dallas, TX, USA; sc-17320), TRA-1-60 (1:300; Abcam, Cambridge, UK; ab16288), NESTIN (1:500; R&D Systems, MAB1259), MUSHASHI (1:500; Abcam, Cambridge, UK; ab21628), FOXA2 (HNF3β) (RY-7; 1:100; Santa Cruz Biotechnology, Dallas, TX, USA; sc-101060), β-3-Tubulin (TUJ1; 1:200; BioLegend, San Diego, CA, USA; 801201) and TH (1:300; Millipore, Burlington, MA, USA; AB152). Secondary antibodies used were: Alexa Fluor 488 Goat anti-Mouse IgG (H+L; 1:200; Invitrogen, Thermo Fisher Scientific, Waltham, MA, USA; A11029), Alexa Fluor 568 Goat anti-Rabbit IgG (H+L; 1:200; Invitrogen, Thermo Fisher Scientific, Waltham, MA, USA; A11036) and Alexa Fluo 647 Donkey anti-Goat IgG (H+L; 1:200; Invitrogen, Thermo Fisher Scientific, Waltham, MA, USA; A21447). Image analysis was carried out using Zen Blue confocal software (Carl Zeiss AG, Oberkochen, Germany). All images were processed using Adobe Photoshop CS6 (Adobe Inc. San Jose, CA, USA).
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5

Immunocytochemical Characterization of Cell Types

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β-galactosidase staining and immunochemistry was done as in Neves et al. (2012 (link)). Primary antibodies were rabbit polyclonal neuronal class III β-tubulin (Covance PRB435P100; 1:500), rabbit polyclonal GFP (Torrey Pines 401, 1:400), mouse monoclonal GFP (Invitrogen A11120, 1:400), mouse monoclonal Myo7a (Hybridoma bank, 1:100), goat polyclonal Sox2 (Y-17, Santa Cruz, 1:400) and rabbit polyclonal DsRed (Takara, 632496, 1:400). Secondary antibodies were Alexa Fluor 488-, 555-, 546-, and 594-conjugated anti-mouse, anti-goat and anti-rabbit (Molecular Probes Invitrogen, 1:500).
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