AGER and pulmonary arterial hypertension: When compared with healthy PASMCs, PAH‐PASMCs expressing increased RAGE were characterized by a higher proliferation rate Figure 4A) and resistance to serum starvation‐induced apoptosis (Figure 4B)—increase of 20% in both proliferation and apoptosis resistance, n=3 to 5 cell lines, P<0.05.