The expression of the chondroitin sulfotransferase genes, in the breast cancer cells used. The expression of CHST3, CHST7, CHST11, CHST12, CHST13, CHST14, CHST15 was measured by qRT-PCR and normalized using18S. Data were analyzed by one-way ANOVA and post hoc analysis using data from three (CHST7, CHST12, CHST13, CHST14) and four (CHST3, CHST11, CHST15) independent experiments. Means and standard deviations are shown. Statistically significant differences and P values are shown.