Another rather recent finding in the field of glycosylation came from phyllodes tumors of the breast, an aggressively growing type of breast cancer: the gene expression of Axl and ST6GalNAcII was increased in malignant tumors, whereas the expression of Axl seems to be dependent on the expression of ST6GalNAcII. The gene discussed is ST6GALNAC2; the disease is breast cancer.