Profile of chromosomal imbalances in 10 cases of primary alveolar rhabdomyosarcoma analyzed by comparative genomic hybridization.
- Author:
Qiao-xin LI
1
;
Feng LI
;
Wei ZHANG
;
Xia LIU
;
Yu-qing MA
;
Xiao-li SHI
;
Na MIAO
Author Information
- Publication Type:Journal Article
- MeSH: Adolescent; Adult; Aged; Cell Line, Tumor; Child; Chromosome Aberrations; Chromosome Deletion; Chromosomes, Human, Pair 12; genetics; Chromosomes, Human, Pair 3; genetics; Chromosomes, Human, Pair 5; genetics; Chromosomes, Human, Pair 6; genetics; Comparative Genomic Hybridization; DNA Copy Number Variations; Female; Humans; Infant; Male; Neoplasm Staging; Oncogene Proteins, Fusion; metabolism; PAX7 Transcription Factor; metabolism; Rhabdomyosarcoma, Alveolar; genetics; metabolism; pathology; Young Adult
- From: Chinese Journal of Oncology 2009;31(8):571-576
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVEThe aim of this study was to characterize the profile of chromosomal imbalances of alveolar rhabdomyosarcoma (ARMS).
METHODSOne-step RT-PCR was used to detect the expression of PAX3-FKHR and PAX7-FKHR fusion transcripts in 10 cases of alveolar rhabdomyosarcoma and in an ARMS cell line. Comparative genomic hybridization (CGH) was used to investigate the genomic imbalances in these cases. It was analyzed according to the histological type, pathologic grading, clinical staging, gender and age, respectively.
RESULTSThe 10 patients with alveolar rhabdomyosarcoma showed evidence of increased or decreased DNA sequence copy numbers involving one or more regions of the genome. (1) The frequently gained chromosome arms of ARMS were 12q, 2p, 6p, 6q, 10q, 2q, 4q, 15q, 1p, 9q, 14q and 18q (> or = 30.0%), and the frequently lost chromosome arms of ARMS were 3p, 6p, 20q and 21q (> 30.0%). (2) The frequently gained chromosome arm translocation associated with ARMS were 12q, 10q, 2p, 2q, 6p, 6q, 1p, 4q, 8q, 11q, 14q and 15q (> 30.0%). The frequently lost chromosome arms were 3p, 5q, 6p, 1q, 8p, 11p, 20q and 21q (> 30.0%). (3) There were no correlation between chromosome changes and histological type, pathologic grade, clinical stage, gender and age, respectively.
CONCLUSIONThese observations suggest that: (1) 12q, 2p, 6p, 6q, 10q, 2q, 4q, 15q, 1p, 9q, 14q, 18q gain and 3p, 6p, 20q, 21q loss may correlated with ARMS-related carcinogenesis; (2) 12q gain may be correlated with translocation.
