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6 protocols using ab96569

1

Protein Quantification and Analysis

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Total cellular protein was extracted using RIPA buffer (Sigma-Aldrich) and quantified with BCA assay (Sigma-Aldrich). SPC25 and PDGF were measured with ELISA kits from MyBiosource and R&D Biosystem, respectively. Western blot was performed with the following antibodies: a rabbit anti-human SPC25 (1:750; Ab236972, Abcam, Dallas, TX, USA), a mouse anti-human Egr-1 (1:2,000; Ab55160, Abcam), a rabbit anti-human PDGF (1:1,000; Ab23914, Abcam), and a mouse anti-human GAPDH antibody (1:1,000; Ab8245, Abcam). All secondary antibodies were from Jackson ImmunoResearch Labs (West Grove, PA, USA). Quantification was done with ImageJ (NIH, Bethesda, MA, USA). Immunocytochemistry was done with a mouse anti-human PDGFR alpha antibody (1:50; Ab96569, Abcam).
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2

Characterization of Musculoskeletal Cell Markers

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Primary antibodies used were specific for Collagen type I (Abcam, ab34710, 1:100 dilution), Collagen type II (Millipore, MAB8887, 1:100 dilution), murine CD200 (Abcam, ab33734, 1:100 dilution), Nestin (Abcam, ab11306, 1:200 dilution), Gremlin 1 (Abcam, ab189267, 1:50 dilution), COMP (Abcam, ab74524, 1:50 dilution), Aggrecan (Abcam, ab3778, 1:100 dilution), Thy1.2 (Invitrogen, cat no. 14-0902-82, 1:50 dilution, 6C3 (Invitrogen, cat no. 14-5891-82 (1:50 dilution), CD105 (Abcam, ab107595, 1:100 dilution), Runx2 (Abcam, ab76956, 1:200 dilution), Alpl (Abcam, ab108337, 1:100 dilution), Osteocalcin (Abcam, ab93876, 1:100 dilution), CD146 (Abcam, ab75769, 1:100 dilution), CD140α (Abcam, ab96569, 1:100 dilution), CD200 (Abcam, ab203887, 1:200 dilution), Tartrate Resistant Acid Phosphatase (TRAP) (Abcam, ab185716, 1:50 dilution), and Cathepsin K (Abcam, ab19027, 1:200 dilution).
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3

Characterization of Musculoskeletal Cell Markers

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Primary antibodies used were specific for Collagen type I (Abcam, ab34710, 1:100 dilution), Collagen type II (Millipore, MAB8887, 1:100 dilution), murine CD200 (Abcam, ab33734, 1:100 dilution), Nestin (Abcam, ab11306, 1:200 dilution), Gremlin 1 (Abcam, ab189267, 1:50 dilution), COMP (Abcam, ab74524, 1:50 dilution), Aggrecan (Abcam, ab3778, 1:100 dilution), Thy1.2 (Invitrogen, cat no. 14-0902-82, 1:50 dilution, 6C3 (Invitrogen, cat no. 14-5891-82 (1:50 dilution), CD105 (Abcam, ab107595, 1:100 dilution), Runx2 (Abcam, ab76956, 1:200 dilution), Alpl (Abcam, ab108337, 1:100 dilution), Osteocalcin (Abcam, ab93876, 1:100 dilution), CD146 (Abcam, ab75769, 1:100 dilution), CD140α (Abcam, ab96569, 1:100 dilution), CD200 (Abcam, ab203887, 1:200 dilution), Tartrate Resistant Acid Phosphatase (TRAP) (Abcam, ab185716, 1:50 dilution), and Cathepsin K (Abcam, ab19027, 1:200 dilution).
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4

Immunohistochemical Analysis of Neural Cell Markers

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A group of sections were randomly selected from the three additional groups of sections from each mouse. The sections were rinsed with PBS-T, successively infiltrated with 2 mol/L HCl for 10 min (only required for the anti-BrdU antibody), subjected to antigen retrieval in citrate buffer (0.01 M, 99°C) for 30 min, and incubated with normal goat serum for 2 h at 37°C. Then, the primary anti-CNPase (ab6319, Abcam), anti-Olig2 (rabbit, ab109186, Abcam), anti-SOX10 (ab155279, Abcam), anti-bromodeoxyuridine (BrdU; ab6326, Abcam), anti-5-HT1AR (ab85615, Abcam), anti-platelet-derived growth factor alpha receptor (PDGFαR; ab96569, Abcam), anti-Aβ (ab11132, Abcam), and anti-CDKN2A/p16INK4a (p16; ab201980, Abcam) antibodies were added at a dilution of 1:500 in PBS, incubated at 4°C for 72 h and then rewarmed at 37°C for 2 h. The appropriate DyLight 405, DyLight 488, and DyLight 549-conjugated secondary antibodies (A23140, A23210, and A23320, respectively, Abbkine, P. R. China) were incubated with the sections at a 1:200 dilution. Finally, the sections were mounted on gelatin-coated slides with antifade solution to reduce fluorescence quenching.
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5

Immunohistochemistry for Ki67 and PDGFRα

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Biopsies were fixed in formalin, dehydrated in 70% ethanol, and embedded in paraffin. Sections were cut (5 μm) and rehydrated. Heat-induced epitope retrieval (Reveal Decloaker 10x, Biocare Medical) was performed for 20 minutes, followed by 0.3% peroxidase ((HX0635-3 MilliporeSigma), and blocked in blocking buffer (MilliporeSigma) for 1 hour at room temperature. Specimens were incubated at 4°C overnight with mouse anti-Ki67 (1:400, ab156956, Abcam) or mouse anti-PDGFRα (16AI; 1:100, ab96569, Abcam), then washed, incubated for 30 minutes in a detection reagent (HRP-Polymer, Biocare Medical), and developed with DAB (Betazid DAB, Biocare Medical). Sections were counterstained with hematoxylin and visualized and photographed using an Olympus BX43 microscope (Olympus Life Science).
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6

Comprehensive Immunolabeling of Mouse Brain Sections

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A group of sections was randomly selected from three additional groups of sections per mouse. The sections were rinsed in PBS-T 4 times 15 min each as previously described and then in ltrated in 2 mol/L HCl successively for 10 min at 0 °C, 25 °C and 37 °C. After the sections were repaired in boric acid solution for 10 min, nonspeci c binding sites were blocked by incubating the sections with normal goat serum for 2 hours at 37 °C. Then, the primary anti-CNPase (mouse, ab6319, Abcam), anti-Olig2 (rabbit, ab109186, Abcam), anti-SRY-related HMG-box 10 (SOX10; rabbit, ab155279, Abcam), anti-platelet-derived growth factor alpha (PDGFα; mouse, ab96569, Abcam), anti-bromodeoxyuridine (BrdU; rat, ab6326, Abcam), anti-Aβ (mouse, ab11132, Abcam) and anti-CDKN2A/p16INK4a (p16; mouse, ab201980, Abcam) antibodies were added at a dilution of 1:500 in PBS and incubated at 4 °C for 72 hours and then rewarmed at 37 °C for 2 hours. Then, secondary antibodies (1:200) were the appropriate DyLight 405, DyLight 488, and DyLight 549 (Abbkine)-conjugated antibodies. Finally, the sections were mounted on gelatin-coated slides with antifade solution to reduce uorescence quenching.
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