For example, galectins are involved in cell apoptosis, e.g., apoptosis of T cells (galectin-1 and -2); in cell–cell and cell–matrix adhesion (galectin-3 and -8); in cell proliferation (galectin-3); in inflammatory diseases, e.g., Crohn’s disease and ulcerative colitis (galectin-4); in cell differentiation, e.g., the differentiation of keratinocytes, and in the regeneration of epidermis and cornea (galectin-7) or the differentiation of adipocytes (galectin-12). The gene discussed is LGALS3; the disease is Crohn disease.