Journal: Cells
Article Title: A New Method to Sort Differentiating Osteoclasts into Defined Homogeneous Subgroups
doi: 10.3390/cells11243973
Figure Lengend Snippet: Live cell sorting of primary human osteoclasts. ( A ) Flow cytometry of live 3D-generated human osteoclasts stained for CD51/61. ( B ) Following cell sorting, the population of CD51/61+ cells increased from 13.3% to 84.2%. ( C ) Cells re-seeded into monolayer culture after live cell sorting and analysed for the presence of osteoclasts (TRAP stain, 24 h post re-seed, scale bar = 100 µm) and resorption activity (resorption tracks on dentine, 7 days post re-seed, scale bar = 200 µm). Top panel: CD51/61-positive cells from 3D culture. Middle panel: CD51/61-negative cells from 3D culture. Bottom panel: CD51/61-positive cells from monolayer culture. ( D ) Flow cytometry of live 3D-generated human osteoclasts stained for CD9 and CD51/61. CD9+CD51/61- and CD9+CD51/61+ cells were re-seeded into monolayer culture after live cell sorting and analysed for the presence of osteoclasts 24 h post re-seed (TRAP stain, scale bar = 100 µm), quantified ( E ) as the number of nuclei per cell in these selected populations. ( F ) Area of bone resorbed by monolayer and 3D-generated osteoclasts selected for CD51/61. Black = monolayer cells, red = 3D-generated cells. ***, p < 0.001.
Article Snippet: CD51/61 staining: immunostaining for osteoclast-specific CD51/61 used an anti-CD51/61 antibody (clone 23C6, 1:400; BioRad, Oxford, UK) and standard DAB immunohistochemistry techniques.
Techniques: FACS, Flow Cytometry, Generated, Staining, Activity Assay