NGF and central nervous system cancer: dilatata, we identified 15 secoiridoid glucosides, including two new secoiridoid glucosides (dilatiosides A and B), ligustroside (LGS) and oleoside dimethylester (ODE), which were evaluated for their effects on the induction of nerve growth factor (NGF) secretion in a C6 rat glioma cell line and their cytotoxicity against several cancer cell lines [18].