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4 protocols using mash1

1

Immunostaining of Neuronal Markers

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The following antibodies were used, including Satb2, Ctip2, Tbr1, and Mash1 (Abcam, Cambridge, CB, UK), Plzf and PHH3 (Santa Cruz, Santa Cruz, CA, USA), Pax6 (Merck Millipore, Darmstadt, Hessen, Germany), β-actin (Sigma-Aldrich, Louis, MO, USA).
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2

Neuronal Differentiation Protocols

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The materials used in this study's experiments are listed below along with their respective suppliers: Lithium chloride, Sodium butyrate, Trichostatin A, and Valproic acid from Sigma (St. Louis, MO); ECL™ reagents from Amersham Life Science (Arlington Heights, IL); Trizol® reagent, SuperScript™II Reverse Transcriptase, Tert siRNA [TERT-RSS313560 (rat), TERT-MSS211505-7 (mouse)] from Invitrogen (Carlsbad, CA); Protein G Agarose from Millipore (Billerica, MA); TDZD-8 (4-Benzyl-2-methyl-1,2,4,-Thiadiazolidine-3,5-dione) from Calbiochem (La Jolla, CA); Taq polymerase from Takara (Shiga, Japan).
Antibodies from the following companies: β-actin antibody from Sigma (St. Louis, MO); Tuj-1 antibody from Covance (Princeton, NJ); TERT antibody from Santa Cruz Biotechnology (Santa Cruz, CA); vGluT1, PSD-95, α-CaMKII, NeuroD1, Mash1, BRG1, Synaptophysin antibody from Abcam (Cambridgeshire, England); GAD, Nestin, GFAP, Pax6 and Ngn2GFAP antibody from Millipore (Billerica, MA); HDAC1, Histone H3, Acetyl-Histone H3, GSK3β and phospho-GSK3β antibody from Cell signaling (Boston, MA).
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3

Western Blot Analysis of Notch Pathway Proteins

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Following protein extraction with RIPA buffer, Western blot analyses were performed using standard procedure with chemiluminescence using ECL system (Bio-Rad, Marnes-la-Coquette, France), as previously detailed [39 (link)]. Antibodies against the following proteins were used: Trim71 (goat polyclonal, 1/1000, LSBio, Clinisciences), Dll1 (sheep polyclonal, 1/1000, USBiological), Notch1 (Rabbit monoclonal, 1/1000, Cell Signaling Technology), Hes1 (rabbit monoclonal, 1/1000, Cell Signaling Technology), and Mash1 (rabbit polyclonal, 1/1000, Abcam, Paris, France).
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH, chicken monoclonal, 1/1000, Millipore, Fontenay-sous-Bois, France) was used as an internal standard. Polyvinylidenedifluoride membranes were incubated for 1 h at room temperature with the corresponding horseradish peroxidase-conjugated preadsorbed secondary antibody (1/2000, Santa Cruz).
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4

Western Blot Analysis of Neuronal Markers

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Westerns were performed and normalized against GAPDH (Glyceraldehyde 3-phosphate dehydrogenase, 37 kd, 1:10,000, MAB374, Millipore, Billerica, MA, USA) as previously reported by our group [32 (link)]. For detection of pAMPK, NaF (50 mM) was added to all buffers, which had been demonstrated to be an effective phosphoseryl and phosphothreonyl protein phosphatase inhibitor [33 (link)]. Antibodies were obtained from Santa Cruz Biotechnology, Inc (Santa Cruz, CA, USA) unless otherwise specified: AgRP (1:500, 14 kd, sc-50299); POMC (1:500, 30 kd, sc-20148); Hes1 (1:500, 35 kd, sc-25392); Mash1 (1:500, 30 kd, sc-13222); Ngn3 (1:1000, 23 kd, ab38548, Abcam, Cambridge, MA); and AMPK (1:1000, 63 kd, sc-19128). All values were normalized to GAPDH and presented as fold change.
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