Isolated human pulmonary artery smooth muscle cells (PASMC) from a non-pulmonary hypertensive patient were isolated and treated with vehicle + 200nM BMP-2 for 24 hours. RNA was extracted using a Quiagen RNeasy kit and prepared for microarray using the Bioarray High Yield Kit. Targets were produced using standard Affymetrix procedures from total RNA. BMP2-treated normotensive human PASMC