Transwell migration assay.

<p>(A) Representative microscopic images of cells cultured in media containing SDF-1 alone, BMP-2 alone, SDF-1 + BMP-2, or neither factor. (B) Quantification of migration of C3H10T1/2 after 24h treatment with the indicated conditions. Treatment with SDF-1 (0.5μg/ml) and BMP-2 (0.5μg/ml) significantly promoted <i>in vitro</i> cell mobility (*, <i>p</i> < 0.05), while concomitant SDF-1 and BMP-2 application did not further enhance the cell migration.