Figure 6. Abnormal alternative splicing of KITLG activates the ERK signaling pathway. (A and B) Agarose gel electrophoresis demonstrated the transfer efficiency on different isoforms of KITLG in both HEK293 and MM cells. (C and D) WB test verified that phosphorylated ERK expression was enhanced in KITLG isoform1-OE cells and downregulated in KITLG isoform2-OE cells.