SRSF3 and neoplasm: Moreover, SRSF3 knockdown or removal of the SRSF3-binding motifs suppressed tumor cell growth by triggering A3SS activation within exon 18 of ILF3 and promoting the skipping of exons 18 and 19, resulting in the production of interleukin enhancer-binding factor 3 (ILF3) isoforms 5 and 7 (28).