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Radioimmunoprecipitation assay lysis buffer

Manufactured by Aspen

Radioimmunoprecipitation assay (RIPA) lysis buffer is a solution used to extract and solubilize proteins from cells or tissues for various analytical techniques, such as Western blotting and immunoprecipitation. It contains a mixture of detergents, salts, and buffers that help to disrupt cell membranes and release the intracellular contents, including the proteins of interest.

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3 protocols using radioimmunoprecipitation assay lysis buffer

1

Protein Expression Analysis in Cells

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The cells were washed three times with PBS, and radioimmunoprecipitation assay lysis buffer (Aspen Pharmacare Holdings Ltd.; cat. no. AS1004) was used to extract the total proteins from cells. Cell lysates (1 × 104) were subjected to 10% SDS-PAGE followed by determination of protein concentration by the bicinchoninic acid method. The proteins (50 μg) were then transferred onto a 10% SDS-PVDF membrane. The PVDF membrane was blocked by 5% bovine serum albumin (Abcam) at room temperature for 2 hours. A chemiluminescence detection system (Canon, Inc.; cat. no. LiDE110) was then used to visualize proteins based on the provided instructions. Antibodies used were as follows: anti-PTEN (1:1000; Abcam; cat. no. Ab32199), anti-Cyclin D1 (1:500; Abcam; cat. no. Ab134175), anti-Cyclin D3 (1:500; Abcam; cat. no. Ab112034), anti-Bcl-2 (1:500; Abcam; cat. no. Ab185002), anti-Bax (1:500; Abcam; cat. no. Ab182734), and anti-GAPDH (1:10,000; Abcam; cat no. ab37168). All experiments were conducted in triplicate.
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2

Exosome Protein Profiling by Western Blot

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The cells were washed three times with PBS, and radioimmunoprecipitation assay lysis buffer (Aspen Pharmacare Holdings Ltd.; cat. no. AS1004) was used to extract the total proteins from the cells. The cell lysates (1x104) were subjected to 10% sodium dodecyl sulfate polyacrylamide gel electrophoresis, and the protein concentration was determined through the bicinchoninic acid method. The proteins (50 μg) were then transferred onto a 10% sodium dodecyl sulfate polyvinylidene difluoride membrane. The membrane was blocked with 5% bovine serum albumin (Abcam) at room temperature for 2 h. A chemiluminescence detection system (Canon, Inc.; cat. no. LiDE110) was then used to visualize the proteins based on the provided instructions. The following antibodies were used: anti-TSG101 (1:1000; Abcam, cat. no. Ab125011), anti-CD9 (1:1000; Abcam, cat. no. Ab92726), anti-NOX5 (OCN; 1:500; Abcam, cat. no. Ab198213) and anti-GAPDH (1:10,000; Abcam, cat no. Ab37168). All experiments were conducted in triplicate.
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3

Osteogenic Protein Expression Analysis

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The cells were washed three times with PBS three times and radio immunoprecipitation assay lysis buffer (Aspen Pharmacare Holdings Ltd.; cat. no. AS1004) was used to extract the total proteins from cells. Cell lysates (1×104) were subjected to 10% SDS-PAGE followed by determination of protein concentration by the bicinchoninic acid method. The proteins (50 µg) were then transferred onto a 10% SDS-PVDF membrane. The PVDF membrane was blocked by 5% bovine serum albumin (Abcam) at room temperature for 2 h. A chemiluminescence detection system (Canon, Inc.; cat. no. LiDE110) was then used to visualize proteins based on the provided instructions. Antibodies used were as follows: Anti-collagen I (1:500; Abcam; cat. no. ab34710), anti- alkaline phosphatase (ALP; 1:1,000; Abcam; cat. no. ab95462), anti-Osteocalcin (OCN; 1:500; Abcam; cat. no. ab93876), anti-Runt-related transcription factor 2 (Runx2; 1:500; Abcam; cat. no. ab23981) and anti-GAPDH (1:10,000; Abcam; cat. no. ab37168). All experiments were conducted in triplicate.
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