TGFB1 and neoplasm: Furthermore, TA-MSCs transport microRNAs (miR) into tumor cells, such as miR-155, miR-8485, miR-221, miR-1587, which enhance proliferation, migration and invasion directly or indirectly by targeting downstream genes or proteins associated with tumor growth and metastasis (SMARCA4, BCR-ABL1 and transforming growth factor β1(TGF-β1)) [45–49].