Other cell adhesion molecules, such as CD44, play critical roles in PAH.45 Current studies have verified that ITGB3 influences cancer cell proliferation and migration.10, 46, 47 Ni et al10 verified that upon restoring the expression of ITGB3, the effect of miR‐98 on non‐small‐cell lung cancer cell proliferation was partially reversed. Here, CD44 is linked to pulmonary arterial hypertension.