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4 protocols using anti angpt2

1

Western Blot Analysis of Cell Signaling Proteins

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Total protein (50 μg) was separated in a Bis-Trispolyacryl amide gel and transferred onto a PVDF membrane (Millipore). The membrane was then incubated in 5% bovine serum albumin (BSA), and then incubated with a primaryantibody at 4°C overnight. Next, samples were incubated with IRDye800CWHRP-conjugated anti-IgG at room temperature for 1hour and visualized via chemiluminescence with an infrared laser scanning system (OdysseyLicor,Lincoln,NE,USA). The following primary rabbit-anti-human antibodies were used: anti-ANGPT2 (1:1000; Abcam); anti-Notch1 (1:500; Abcam); anti-Notch2 (1:500; Abcam); anti-Runx2 (1:1000;Abcam); anti-Sp7/Osterix (1:2000; Abcam); anti-ALP (1:2000; Abcam); anti-OCN (1:500; Abcam) and anti-GAPDH (1:2,500; Abcam).
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2

Protein Expression Analysis by Western Blot

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Total proteins were harvested from indicated cells and separated by SDS/PAGE gel and then transferred to PVDF membranes for 1 h. Subsequently, membranes were blocked by using 5% non-fat milk powder and then using the primary antibodies, anti-flag (Sigma, F3165), anti-MYBL1 (Affinity, AF9007), anti-ANGPT2 (Abcam, ab155106), anti-HA (Proteintech, 51064-2-AP), anti-myc (Proteintech, 16286-1-AP) and anti-PRMT5 (Proteintech, 18436-1-AP). Immunoreactive proteins were detected using a fluorescence imaging system (Minichemi 610, China).
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3

Immunofluorescence Analysis of Mouse Brain

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Mouse brains were embedded in Tissue-Tek O.C.T. (Sakura Finetek, Alphen aan den Rijn, The Netherlands) and snap frozen in isopentane (Sigma-Aldrich) cooled on dry ice. Snap-frozen tissue was sectioned at 6 μm thickness on a cryostat (Leica CM3050S, Leica Microsystems, Wetzlar, Germany). Subsequent washes were done with TBS-Tween20 (Sigma-Aldrich) wash buffer, 3×3 min, all steps were performed at room temperature. The primary antibodies used were: anti-ANGPT2 (1:100, Abcam), anti-Msi1 (1:500, Abcam), anti-NG2 (1:100, Abcam), anti-Sox2 (1:100, Abcam), anti-VEGF (1:20, Abcam), anti-Vimentin (1:100, Abcam), anti-PDGFRα (1:100, Cell Signaling Technology, Beverly, MA, USA), anti-GFAP (1:500, Dako, Glostrup, Denmark), anti-Tubulin β3 (1:100, Millipore), anti-HuNu (1:100, Millipore), anti-FGF2 (1:100, Santa Cruz Biotechnology, Santa Cruz, CA, USA), anti-IDH1 (Dianova, Hamburg, Germany) and anti-POU3F2 (SC-2895, Santa Cruz). The secondary antibodies used were: FITC-conjugated goat anti-rabbit (1:200, Southern Biotech), FITC-conjugated goat anti-mouse (1:200, Southern Biotech), TXRD-conjugated goat anti-mouse (1:100, Southern Biotech).
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4

Western Blot Protein Analysis Protocol

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Total protein was extracted from cells using lysis buffer, followed by determination of total protein concentration in the sample. Each protein sample (50 µl) was separated by 10% sodium dodecyl sulphate-polyacrylamide gel electrophoresis, and then transferred to polyvinylidene difluoride membranes. Membranes were blocked using 5% non-fat milk for 30 min at room temperature, then incubated with primary antibodies (1:1000 dilution; anti-ANGPT2, CD19, COL4A3, FGF18, ITGB4, ITGB8, LAMA3, LAMC2, PPP2R2C, SGK2, SYK, AKT3, COL6A1, CSF3, FGF1, ITGA2, ITGA11, MYB, PCK2, PGF, PIK3AP1, SGK1, TLR4 and TP53 (all Abcam, Cambridge, UK) at 4 °C overnight. Membranes were washed three times using 1 × Tris-buffered saline-Tween-20 (TBST), and then incubated with the corresponding horseradish peroxidase (HRP)-conjugated secondary antibody (1:5000 dilution; all Abcam) for 1 h at 37 °C, and again washed three times with 1 × TBST. GAPDH was quantified as the loading control. The blots were visualized using enhanced chemiluminescence (ECL) reagent (Cwbiotech, Beijing, China) and Image Lab software, version 5.1 (Bio-Rad Laboratories, Hercules, CA, USA).
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