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- W2000911114 abstract "DNA copy number changes were characterized by comparative genomic hybridization (CGH) in 18 breast cancer cell lines. In 5 of these, the results were comparable with those from the primary tumors of which the cell lines were established. All of the cell lines showed extensive DNA copy number changes, with a mean of 16.3 ± 1.1 aberrations per sample (range 7–26). All of the cell lines had a gain at 8q22–qter. Other common gains of DNA sequences occurred at 1q31–32 (89%), 20q12–q13.2 (83%), 8q13 (72%), 3q26.1–qter (67%), 17q21–qter (67%) 5p14 (61%), 6p22 (56%), and 22pter–qter (50%). High-level amplifications were observed in all cell lines; the most frequent minimal common regions were 8q24.1 (89%), 20q12 (61%), 1q41 (39%), and 20p11.2 (28%). Losses were observed less frequently than gains and the minimal common regions of the most frequent losses were Xq11–q12 (56%), Xp11.2–pter (50%), 13q21 (50%), 8p12–pter (44%), 4p13–p14 (39%), 6q15–q22 (39%), and 18q11.2–qter (33%). Although the cell lines showed more DNA copy number changes than the primary tumors, all aberrations, except one found in a primary tumor, were always present in the corresponding cell line. High-level amplifications found both in primary tumors and cell lines were at 1q, 8q, 17q, and 20q. The DNA copy number changes detected in these cell lines can be valuable in investigation of tumor progression in vitro and for a more detailed mapping and isolation of genes implicated in breast cancer." @default.
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- W2000911114 date "2005-01-01" @default.
- W2000911114 modified "2023-09-26" @default.
- W2000911114 title "P-69 Chromosome abnormalities in Chinese patients with primary myelodysplastic syndromes" @default.
- W2000911114 doi "https://doi.org/10.1016/s0145-2126(05)80133-x" @default.
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