Martínez-Ramírez A, Rodríguez-Perales S, Meléndez B, Martínez-Delgado B, Urioste M, Cigudosa JC, Benítez J. Characterization of the A673 cell line (Ewing tumor) by molecular cytogenetic techniques.
CANCER GENETICS AND CYTOGENETICS 2003;
141:138-42. [PMID:
12606131 DOI:
10.1016/s0165-4608(02)00670-2]
[Citation(s) in RCA: 47] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The A673 cell line was established from a patient with a primary rhabdomyosarcoma (RMS), which is referred to in the literature either as a Ewing tumor (ET) or as RMS. Although the two tumoral types are associated with specific and well-characterized translocations, no cytogenetic report on this cell line has been published. We characterized the A673 cell line using a combination of spectral karyotyping (SKY), fluorescence in situ hybridization (FISH), and reverse transcriptase polymerase chain reaction (RT-PCR), which revealed the presence of a complex karyotype and a translocation involving chromosomes 11 and 22 and the fusion of EWS and FLI1 genes, both events being specific to ET. Neither cytogenetics nor molecular alterations specific to RMS were found.
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