We obtained PBMNC-derived macrophages from 3 healthy volunteers (6958, 6946 and 5430 cells from each subjects respectively), 3 PAH patients harboring mutations in bone morphogenetic protein receptor type II (BMPR2) (7178, 13748 and 9739 cells respectively), and 3 PAH patients without BMPR2 mutations (6840, 8529 and 8400 cells respectively). The gene discussed is BMPR2; the disease is pulmonary arterial hypertension.