sigma binding was detected in 15 of 16 tumors examined with very high levels ( pmol/mg protein ) found in a brain metastasis from an adenocarcinoma of lung and a human neuroblastoma ( sk-n-mc ) passaged in nude mice . kappa opioid receptor binding was detected in 4 of 4 glioblastoma multiforme specimens and 2 of 2 human astrocytoma cell lines tested but not in the other brain tumors analyzed .
C0017636
glioblastoma multiforme
C0004114
astrocytoma