A previous study showed that miR‐194 can target bone morphogenetic protein 1 (BMP1) and kip1, leading to suppression of transforming growth factor β activity and down‐regulation of the expression of key oncogenic genes such as matrix metalloproteinases MMP2 and MMP9, and thus suppress the metastasis of non‐small cell lung cancer 9. The gene discussed is MMP9; the disease is lung cancer.