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2 protocols using epr16892

1

Comprehensive Liver Tumor Analysis

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Liver tissues were fixed in 10% neutral buffered formalin, paraffin embedded and cut into 4 μm sections. Sections were H&E stained and assessed for tumour grade by pathologist Professor Robert Goldin (Imperial College London). Necrosis was determined by TUNEL (terminal deoxynucleotidyl transferase-mediated dUTP nick-end labelling) staining (ApopTag Plus Peroxidase In Situ Apoptosis Detection Kit, Milipore). Hepatocyte proliferation was determined by staining with polyclonal rabbit anti-MCM4 antibody at a 1/100 dilution (Abcam, ab84153). PD-1 expressing lymphocytes were identified using a rabbit polyclonal anti PD-1 antibody at 2.5 μg ml−1 (Biorad ahp1706). RAE-1 expression was analysed using a polyclonal goat anti-mouse RAE-1 antibody at 10 μg ml−1 (R&D Systems). HCC markers were stained using anti-Hsp70 at 1 μg ml−1 (EPR16892) and rabbit polyclonals raised against Glypican-3 at 5 μg ml−1 (ab66596) and Anti-Glutamine Synthetase at 1 μg ml−1 (ab73593) from abcam. Slide images were captured using a Nanozoomer slide scanner (Hamamatsu) and analysed using Image J software.
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2

Protein Extraction and Western Blot Analysis

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Protein homogenates from A549 cells and H2170 cells were extracted as previously described. Brie y, the cells were lysed for 20 min on ice in ice-cold lysis buffer (Roche). The lysates were centrifuged at 12,000 × g for 20 min at 4•C to obtain a clear lysate. The protein content of each sample was determined using the BCA Protein Assay Kit (Thermo Scienti c). Then, equal amounts of proteins(12μg/lane) were separated on a 12% sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and transferred to polyvinylidenedi uoride (PVDF) membranes (Bio-Rad, Hercules, CA, USA).The membranes were blocked in 5% (w/v) nonfat dry milk in TBST (Tris-buffered saline-0.1% Tween) at 25 °C for 3 h and then incubated with the following primary antibodies: β-actin (1:800, Abcam, EPR16769), RAB35 (1:700, Abcam, ab152138), TSG101 (1:1500, Abcam, ab125011), CD63 (1:1000, Abcam, EPR21151), HSP70
(1:1000, Abcam, EPR16892). The bands were visualized using horseradish peroxidase (HRP) conjugated goat anti-rabbit IgG (1:2,000, Boster) prior to the ECL protocol (Amersham Biosciences, Piscataway, NJ, USA).
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