3.5. MSCs Regulate miR-320b/MAP3K1 Expression Both 
PROLIFERATION
We compared MAP3K1 expression levels in patient PBMCs before and after MSCT and found that MAP3K1 expression was increased after MSCT (To explore whether MSCs can regulate miR-320b/MAP3K1 expression Next, we used RNase to abrogate the expression of miRNAs in the coculture supernatant. Compared with PBMCs cocultured with MSCs without RNase, the proliferation rates of PBMCs and CD4+ T cells were significantly decreased in PBMCs with RNase (