HNRNPA2B1 and breast cancer: To further confirm our findings, we knocked down or over expressed hnRNPA2B1 in breast cancer cell line MCF7 (Figure S10A), we observed decreased growth in shA2B1 MCF7 cells compared with shCtrl group (Figure S10B), and increased growth in A2B1 MCF7 cells compared with Vec group (Figure S10B).