The invention belongs to a novel
pulmonary artery hypertension treatment drug screening technology established by applying a
stem cell technology; with a BMP
signal downstream key
gene Id1 as a target spot, a double-report-
gene original is designed and inserted into an Id1
genome to construct a restructuring carrier, the carrier is transferred into a human
embryonic stem cell strain, and a stable-expression CGMCC11091
cell strain is obtained; the CGMCC11091
cell strain is stimulated by a to-be-tested anti
pulmonary artery hypertension compound, then cells are cracked by a
cell cracking fluid, according to a
genetic testing system, the method detects
luciferase expression activity, with the Id1
promoter driven double-report-
gene expression quantity as an indicator, and a
pulmonary artery hypertension treating compound screening model having Id1 expression up-regulated is obtained. The invention also discloses an application of the model in screening regulators for up-regulation of
bone morphogenetic protein (BMP) signals, regulators for up-regulation of expression level of BMP-2 acceptors, preparations for improving the pulmonary
artery blood
hemodynamics, preparations for improving pulmonary vascular reconstitution, pulmonary
artery hypertension treatment drugs and cardiopulmonary
vascular disease treatment drugs.