Further assays have found that circDLC1 binds to Human Antigen R (HuR) and blocks the interaction between HuR and matrix metalloproteinase 1 (MMP1) mRNAs, suggesting that m6A-regulated circDLC1 may serve as a therapeutic target for HCC (Liu et al. 2021). Here, MMP1 is linked to hepatocellular carcinoma.