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6 protocols using nmdar1

1

Western Blot Analysis of Protein Expressions

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Protein from BMDMs lysates was resolved NuPAGE 4%-12% gels (Thermo Fisher Scientific) or Tris–Glycine gel, and transferred to PVDF membranes (Millipore, Burlington, MA, USA). After blocking with 5% skim milk, the membranes were incubated with primary antibodies at 4 °C overnight. Primary antibodies against the following proteins: iNOS, HIF-1α (Novus, Centennial, CO, USA), NMDAR1 (Abcam), p-p65 (S536), p65, p-PI3K (Y458), PI3K, p-AKT (T308), AKT, p-p70S6K (T389), p70S6K, and LDHA (Cell Signaling Technology, Danvers, MA, USA), and Actin (Sigma). The HRP-conjugated secondary antibodies were used to incubate the membranes for 2 h at room temperature. Membranes were detected using Image Quant LAS-4000 (GE Healthcare, Chicago, IL, USA).
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2

Quantitative Protein Analysis of Hippocampal Samples

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Proteins were obtained from the hippocampal tissue or cultured neurons or isolated mitochondria. For western blotting, 35–50 μg protein was added per lane of 12% SDS-PAGE. Primary antibodies were diluted in primary antibody dilution buffer (Beyotime Biotech., Shanghai, China). Antibodies used included the following: anti-GAPDH (Abgent Biotech. Co. Ltd., Suzhou, China), anti-ferritin, superoxide dismutase 2 (SOD2), Mitoferrin1, Drp1, Mfn2, RASD1, NMDAR1, and NMDAR2A (Abcam, Cambridge, MA, USA), anti-TfR1 (Zymed, San Francisco, CA, USA), anti-IRP2 (polyclonal, raised from rabbit), and anti-DMT1 (Alpha Diagnostic International, San Antonio, TX, USA). Detection was performed using peroxidase-conjugated secondary antibodies (Thermo Fisher Scientific, Waltham, UK). Quantification of the density of the western bands was done with programme ImageJ (http://rsb.info.nih.gov/ij/).
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3

Immunofluorescence Analysis of Dopamine-Induced Signaling

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PCAs were seeded and cultured on glass coverslips precoated with 0.01% poly-l-lysine (Sigma-Aldrich) for 1 h. Following treatment of the cells with DA (final concentration of 5 or 50 μM) for 24 h, they were fixed with 4% paraformaldehyde for 30 min and then treated with 0.1% Triton X-100 for 10 min at room temperature.
Blocking was achieved with PBS containing 5% normal goat serum for 1 h at room temperature. Sections were then incubated overnight at 4°C with the following primary antibodies: NMDAR1 (1:100; Abcam), CaM (1:100; Abcam), nNOS (1:50; Abcam), sGC (1:50; Abcam) and cGMP (1:50; Santa Cruz Biotechnology, Inc.). Binding of primary antibodies was detected by incubating the sections for 30 min with Alexa Fluor 594 (red) conjugated secondary antibody. Imaging was performed with a Leica TCS SP2 confocal laser scanning microscope (Leica Microsystems). The image data were analyzed and quantified using ImagePro Plus software (Media Cybernetics, Inc.) (22 (link)).
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4

Immunofluorescence Antibody Staining Protocol

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Anti-IBA1, anti-TJP1, and anti-OCLN were purchased from ProteinTech, Wuhan, China. Anti-P-synapsin-1, VGlut1, NMDAR1, and NMDAR2B were purchased from Abcam, Shanghai, China. 4,6-Diamidino-2-phenylindole (DAPI; #C0060) was purchased from Solarbio, Beijing, China.
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5

Immunohistochemical Analysis of Cerebral Cortex

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Four-micron frozen cerebral cortex sections fixed in acetone or 4% formaldehyde were blocked for endogenous peroxidase activity with 0.03% H2O2 if appropriate. Blocking was achieved with phosphate-buffered saline (PBS) containing 5% normal goat serum (Wuhan Boster Biological Technology, Ltd., Wuhan, China) for 1 h at room temperature. Sections were then incubated overnight at 4°C with the following primary antibodies; NMDAR1 (1:100; mouse monoclonal; Abcam, Cambridge, MA, USA), CaM (1:100; mouse monoclonal; Abcam), nNOS (1:50; Rabbit monoclonal; Abcam), sGC (1:50; rabbit polyclonal; Abcam), cGMP (1:50; mouse monoclonal; Santa Cruz Biotechnology, Inc., Santa Cruz, CA, USA) and GFAP (1:50; rabbit polyclonal/mouse monoclonal; Abcam). Binding of primary antibodies was detected by incubating the sections for 30 min with fluorescein isothiocyanate (FITC) (green)/Alexa Fluor 594 (red) conjugated secondary antibody. Imaging was performed with a Leica TCS SP2 confocal laser scanning microscope (Leica Microsystems, Wetzlar, Germany). The image data were analyzed and quantified using ImagePro Plus software 6.0 (Media Cybernetics, Inc., Rockville, MD, USA).
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6

Protein Analysis in Hippocampus and Neurons

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Proteins were obtained from hippocampal tissue or cultured neurons or isolated mitochondria. For western blotting, 35-50 µg protein was added per lane of 12% SDS-PAGE. Primary antibodies were diluted in primary antibody dilution buffer (Beyotime Biotech., Shanghai, China). Antibodies used included: anti-GAPDH (Abgent Biotech. Co. Ltd., Suzhou, China), anti-ferritin, superoxide dismutase 2 (SOD2), Mitoferrin1, Drp1, Mfn2, RASD1, NMDAR1, and NMDAR2A (Abcam, Cambridge, MA, USA), anti-TfR1 (Zymed, San Francisco, CA, USA), anti-IRP2 (polyclonal, raised from rabbit), and anti-DMT1 (Alpha Diagnostic International, San Antonio, TX, USA). Detection was performed using peroxidase-conjugated secondary antibodies (Thermo Fisher Scientific, Waltham, UK). Quantification of the density of the western bands was done with programme ImageJ (http://rsb.info.nih.gov/ij/).
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