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4 protocols using ab15130

1

Western Blot Analysis of c-Abl Protein

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BMA was mixed with Laemmli sample buffer (1610737 Bio-Rad) and 2-mercaptoethanol; 11 μg (lanes 3 and 9) 18.6 μg (lanes 4 and 10) of protein was loaded into a 4–15% precast gel (4561084 Bio-Rad) and transferred onto polyvinylidene difluoride (PVDF) membranes (Bio-Rad) using the Trans Blot Turbo Transfer System (1704150 Bio-Rad). Following blocking with 5% nonfat milk, the membrane was cut in half and incubated with either rabbit anti-c Abl antibody (Ab15130 Abcam) or an isotype control (011-000-003 Jackson Immunoresearch Labs), each diluted to a final concentration of 0.1 μg/mL and incubated overnight at 4°C. After washing with TBS, 0.1% Tween-20, the membrane was incubated with HRP-conjugated anti-rabbit IgG (7074 Cell Signaling Technology) at 1:5000 diluted in TBS, 0.1%Tween-20/5% milk at room temperature for 2 hrs. The membrane was washed again with TBS/0.1%Tween-20 and a chemiluminescent substrate was added (1705060 Bio-Rad) and exposed to x-ray film for various times prior to developing.
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2

Western Blot Analysis of Protein Expression

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Total protein was extracted from tissues or cells, followed by protein concentration assessment by a BCA kit (P0012S, Beyotime, Shanghai, China). Proteins (50 μg) were dissolved in 2× sodium dodecyl sulfate (SDS) loading buffer, then boiled (100°C for 5 min), separated by SDS-polyacrylamide gel electrophoresis, and then transferred onto polyvinylidene fluoride membranes. Subsequent to blocking in 5% skim milk powder, diluted primary antibodies of ABL1 (ab15130, 1:1,000; Abcam, Cambridge, MA, USA), MMP-3 (ab52915, 1:1,000; Abcam), MMP-13 (ab39012, 1:3,000; Abcam), cleaved-caspase3 (ab32042, 1:500; Abcam), and GAPDH (ab181602, 1:10,000; Abcam) were added for incubation with the membranes at 4°C overnight, prior to incubation with horseradish peroxidase-conjugated secondary antibody goat anti-rabbit immunoglobulin G (IgG) (ab205718, 1:5,000; Abcam) for 2 h after the membrane was washed. Visualization of the protein bands was actualized using electrochemical luminescence, and scanning analysis was performed on a gel imager system. Thereafter, the gray level was determined by Image J software utilizing GAPDH as the internal control.
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3

Quantification of Phosphorylated c-Abl in Cells

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After treating LFs with 25 µg mL-1 GNP-HCIm and 10 µM Imatinib for 24 h, cells were lysed. Proteins (10 µg) were loaded onto SDS-PAGE and transferred onto a PVDF membrane using a Trans Blot turbo system (Bio-Rad). After 1 h incubation in 5% Bovine Serum Albumin (BSA) diluted in PBS and three washes with PBS containing 0.1% Tween 20 (TBST), the membrane was incubated overnight with anti-c-Abl (phospho Y412) antibody (ab4717, Abcam) at a 1:1000 dilution in 1% BSA. After three washes with TBST (10 mL), membranes were incubated with Rabbit anti-Mouse IgG H&L (HRP) (ab6728, Abcam) secondary antibody at a 1:2000 dilution in 1% BSA in TBST, for 1 h at room temperature. Clarity Western ECL (Bio-Rad) solution was used according to the provided protocol. The same procedure was applied to identify c-Abl by anti-c-Abl antibody (ab15130, Abcam) at a 1:100 dilution and β-actin (15G5A11/E2, Cat #MA1-140, Thermo Fisher Scientific) at a 1:5000 dilution. Also in this case we used as secondary antibody Rabbit anti-Mouse IgG H&L (HRP) (ab6728, Abcam). All immunoblots were acquired with the ImageQuant LAS 4000 analyzer (GE Healthcare).
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4

Immunohistochemistry of c-Abl in Tissue Sections

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Approximately 100 adult males or adult females were fixed in 4% paraformaldehyde (15710 Electron Microscopy Sciences, 16% PFA diluted with 1X PBS) at 4°C overnight, then placed in 2% agarose in DMEM (1054 Gibco). Sections 200 μm thick were sliced with a Leica VT1000 S Vibrating Blade Microtome (Leica Microsystems) at speed 5, in ice-cold phosphate buffered saline (PBS), and placed in 1% or 2% bovine serum albumin (BSA) in PBS. Sections were permeabilized with 2.5% BSA, 1% Triton-X100 in PBS by agitating slowly at 4°C for 1 hour. Blocking was performed with 1% BSA, 10% goat serum and 0.1% Tween-20 in PBS agitating slowly for 1 hour at 4°C. Sections were washed with 1% BSA/PBS. Polyclonal rabbit antibody raised against human c-Abl (Ab15130 Abcam) or isotype control rabbit IgG (011-000-003 Jackson Immunoresearch Labs) at a concentration 0.05ug/mL was added to 1% BSA, 1% Triton-X100 in PBS and agitated slowly at 4°C for 72–96 hours. Sections were washed twice with 1% BSA/PBS, then counterstained with Alexa Fluor 594 goat anti-rabbit IgG (A31632 Life Technologies) at 1:2000 with 1% Triton-X100, 1%BSA and incubated overnight at 4°C agitating. Sections were then washed with 1%BSA/1% Triton/PBS for 16–24 hours agitating at 4°C. DAPI (R37606 Molecular probes) was then added. The experiment was repeated 6 times.
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