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3 protocols using anti fzd1

1

Western Blot Analysis of Frizzled-1 Signaling

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Total ventricular extracts were prepared from the LV myocardium as described previously [31 (link)]. Protein concentrations were measured by BCA (Sigma-Aldrich, USA) assay. Equal amount of protein extracts was separated with SDS-page and transferred to a nitrocellulose membrane (Millipore, USA). The following primary antibodies were used in the present study: anti-GAPDH (USBiological, USA), anti-FZD1 (R&D systems, USA), anti-active-β-catenin (Millipore, USA), anti-β-catenin (Santa Cruz Biotechnology, USA), anti-p-GSK-3β (Cell-Signaling Technology, USA), anti-GSK-3β (BD Biosciences, Germany). HRP-conjugated anti-rabbit IgG, anti-mouse IgG, and anti-goat IgG antibodies (Santa Cruz Biotechnology, USA) were used as secondary antibodies. The blots were analyzed and quantified by densitometry using Image J program.
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2

Quantifying Astrocyte Protein Signaling

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Protein from astrocytes was extracted on ice with RIPA buffer plus protease inhibitor and phosphatase inhibitor cocktail (both Thermo Fisher Scientific Inc.). Protein concentration was determined by BCA Protein Assay (Thermo Fisher Scientific Inc.). Protein extracts (30 µg) were separated by SDS-PAGE and transferred onto nitrocellulose membranes (AmershamProtran 0.2 NC; GE Healthcare Life Sciences, Chicago, IL, USA). The membranes were then incubated with anti-p-NF-κB/p65 (Cell Signaling Technology, Inc., Danvers, MA, USA), anti-Nrf2, anti-heme oxygenase-1 (HO-1; both Abcam, Cambridge, MA, USA), anti-Nlrp3, anti-PI3K, anti-p-Akt (all Cell Signaling Technology, Inc.), anti-WNT-1 (Abgent Inc., San Diego, CA, USA), anti-Fzd1 (R&D Systems, Inc., Minneapolis, MN, USA), anti-β-catenin (Cell Signaling Technology, Inc.), anti-BDNF (Abcam), anti-GDNF (Santa Cruz Biotechnology, Inc., Dallas, TX, USA), and anti-β-actin (Cell Signaling Technology, Inc.) antibodies overnight at 4°C. Bands were visualized by HRP-conjugated secondary antibodies and chemiluminescence (ECL) kit (EMD Millipore, Billerica, MA, USA) under a ChemiDoc XRS+ system (Bio-Rad Laboratories, Inc., Hercules, CA, USA).
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3

Quantifying Neurobiological Markers in Mouse Brain

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The mouse brain was extracted using protein extraction buffer (T-PER, Thermo Fisher, USA) containing protease and phosphatase inhibitors (Thermo Fisher, USA). Equal amounts of protein extracts (20µg) were separated by SDS-PAGE and transferred onto a nitrocellulose lter (NC) membrane (GE Healthcare Life Sciences, USA). After being blocked with 5% non-fat milk, membranes were incubated at 4°C overnight with primary antibodies (all at 1:1000) as follows: anti-β-actin (Abcam, USA), anti-p-mTOR(Abcam, USA), anti-GDNF(Abcam, USA), anti-BNDF(Abcam, USA), anti-CNTF(Abcam, USA), anti-Bcl-2(Abcam, USA), anti-Bax (Abcam, USA), anti-p110α-PI3K (C73F8) (Cell Signaling Technology, MA), anti-p-Akt (Ser473) (Cell Signaling Technology, MA), anti-β-catenin (Cell Signaling Technology, MA), anti-Fzd1 (R&D system, USA), anti-NLRP3 (R&D system, USA), anti-WNT1 (ABGENT, USA), anti-iNOS/NOS(BD, USA) or anti-Arginase1 (BD, USA). After being washed in TBST, the immunoblots underwent incubation with horseradish peroxidase-conjugated secondary antibodies (Jackson Lab, USA) for 1h. Bands were visualized and analyzed using a ChemiDoc XRS (Bio-Rad, USA) and Image Lab(Bio-Rad, USA).
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