This inhibitory effect is related to the dormancy of breast cancer, where MMP-2 induces disseminated breast tumor cells to enter dormancy by promoting the expression of the dormancy promoter TGF-β2 in the BM.240 A recent report found that thrombospondin-2 could promote the migration of prostate cancer cells by enhancing MMP-2 expression.241. The gene discussed is MMP2; the disease is breast carcinoma.