However, in some of the previous studies, it was also found to inhibit the proliferation of smooth muscle cells and BMSCs as the contrary results.31, 32 Besides, in nasopharyngeal carcinoma, exosome miR‐9 was found to inhibit angiogenesis.33 The different roles of miR‐9 in the regulation of cell proliferation, migration and angiogenesis may be related to its targeted gene TRPM7. This evidence concerns the gene TRPM7 and nasopharyngeal carcinoma.