We have previously reported the finding of MET amplification linked to
double minutes (dmins) in a human glioblastoma (TX3095). Because dmin
s are found in approximately 50% of glioblastomas, 18 gliomas were ana
lyzed For MET amplification. Three grade IV glioblastomas and one grad
e II astrocytoma showed amplification. We could also localize the MET
amplicon to dmins in glioblastoma TX3095 by fluorescence in situ hybri
dization. (C) 1995 Wiley-Liss, Inc.