Ganglioside content and pattern in tumor tissue of human neuroblastomas.

The ganglioside content and composition in human neuroblastomas was examined. The densitometric pattern corresponding to the thin-layer chromatography of gangliosides showed no major differences compared to normal brain in the GT area, and variable modifications for GM1 and GD3. The most striking and common features resided in the area corresponding to the disialogangliosides for which is was clear that existed a far more complex pattern than normal human brain.