FUT1 and small cell lung carcinoma: In the SK-LC-17 SCLC cell line, the co-transfection of GM1 synthase cDNA with FUT1 or FUT2 increased Fuc-GM1 expression, whereas the co-transfection of GD3 synthase cDNA with FUT1 or FUT2 reduced the expression levels of Fuc-GM1.