IPAH	idiopathic pulmonary arterial hypertension;
PAH	pulmonary arterial hypertension;
DEGs	differentially expressed genes;
FC	fold change;
GO	gene ontology;
GEO	gene expression omnibus;
PPI	protein–protein interaction;
GSEA	gene set enrichment analysis;
MSigDB	molecular signatures database;
NES	normalized enrichment scores;
STRING	search tool for the retrieval of interacting genes/proteins;
MCODE	molecular complex detection;
DGIdb	drug–gene interaction database;
ROC	receiver operating characteristic;
AUC	area under the curve;
BP	biological process;
CC	cellular component;
MF	molecular function;
BMP	bone morphogenetic protein;
TGF-β	transforming growth factor-β.