LGALS4 overexpression inhibited CRC cell growth, induced cell cycle arrest and enhanced 5-fluorouracil (5-FU)-induced apoptosis...The downregulatory effect of LGALS4 on glycolysis-related genes was further enhanced by the addition of the β-catenin inhibitor XAV-939...Overexpression of LGALS4 reduced the proliferation and glycolytic capacity of CRC cells and also enhanced their sensitivity to 5-FU. These results may potentially provide new perspectives for CRC treatment and targets for future clinical intervention strategies.
Furthermore, mass spectrometry (MS) combined with glycosidase digestion revealed that this structural change was due to the presence of the lacto-type (β1-3Galactosyl) glycan of GSL, in addition to the neolacto-type (β1-4Galactosyl) glycan of GSL. Our results demonstrate that galectin-4 is an important regulator of glycosylation in cancer cells and galectin-4 expression affects the glycan profile of GSLs in malignant cancer cells with a high potential for peritoneal dissemination.