HMGA2 and breast cancer: One study reported that exosomal miR-7641 could drive breast cancer progression and metastasis via the transportation of exosomes [14]; miR-142-3p could suppress breast cancer malignancy by targeting HMGA2 [15] I In addition, many studies have reported that miRNAs are key regulators of different cancer types and are promising targets for cancer treatment and diagnostic tools [16].