To date, no relevant coverage on these molecules, such as SYT5, HOXA1, MIER3 and ARL4C, has been published to elucidate the relations between above‐talked mRNA with miR‐508‐3p, miR‐298 or miR‐632 in the pathophysiological of PAH. Here, ARL4C is linked to pulmonary arterial hypertension.