Bone marrow cells were harvested from mouse femurs and tibias. Goat polyclonal Alp primary antibody (2.5 μg per 106 cells, AF2910, R&D Systems), rabbit polyclonal osteocalcin antibody (1: 10, FL-100, Santa Cruz Biotechnology) and rabbit polyclonal Oscar antibody (1: 10, H-94, Santa Cruz Biotechnology) were used for FACS. Briefly, after washing with PBS containing 1% BSA, the bone marrow cells were incubated with the antibody to Alp or osteocalcin or Oscar before being stained with donkey anti-goat FITC-IgG (1: 200, ab6881, Abcam) or donkey anti-rabbit FITC-IgG (1: 100, sc-2090, Santa Cruz Biotechnology)43 (link),44 (link),48 (link). The obtained cell populations were washed three times and used for quantitative analysis of chalcone derivative formulations and determination of Smurf1 activity, p-Smad1 and osteocalcin mRNA.
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