[The in vitro differentiation of cancer cells of the human colon (HT29-D4) is associated with the presence of annulate lamellae in the basal part of the cytoplasm].

The morphological differentiation of HT29-D4 cells is associated with the occurrence of annulate lamellae in the basal part of the cytoplasm. These structures could constitute a new marker for the in vitro differentiation of intestinal epithelial cells.