I-17 TRANSLOCATIONS AND OTHER CHROMOSOME-17 REARRANGEMENTS IN HUMAN PRIMARY NEUROBLASTOMA TUMORS AND CELL-LINES

We report on the finding of a t(1;17) in two primary neuroblastomas. S ubsequent fluorescence in situ hybridization (FISH) analysis revealed the presence of 1;17 translocations in four out of nine neuroblastoma cell lines. The chromosome I short arm breakpoints were determined usi ng region-specific probes. FISH screening also demonstrated or confirm ed the presence of 11;17 translocations in three cell lines and other chromosome 17 rearrangements in those cell lines that did not carry a t(1;17) or t(11;17). Our data extend previous cytogenetic findings and suggest that, in addition to the known involvement of chromosome I, o ne or more genes on chromosome 17 also play a role in neuroblastoma de velopment. (C) 1994 Wiley-Liss, Inc.