PMID- 10347552 OWN - NLM STAT- MEDLINE DCOM- 19990615 LR - 20190816 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 111 IP - 2 DP - 1999 Jun TI - Multiple polysomies in breast carcinomas: preferential gain of chromosomes 1, 5, 6, 7, 12, 16, 17, 18, and 19. PG - 144-8 AB - Chromosome G-banding analysis of metaphase cells from 16 primary breast carcinomas revealed the presence of multiple polysomies in near-diploid as well as in polyploid cells. Chromosome 17 was preferentially gained in 7 tumors, followed in frequency by chromosomes 1, 12, and 19 (5 tumors each), and chromosomes 5, 6, 7, 16, and 18 (4 tumors each). Eleven of the 16 carcinomas had, apart from the clones exhibiting the numerical gains, other unrelated clones. Nine of these 11 cases had clones with structural chromosome aberrations, 5 of which had structural aberrations involving the short arm of chromosome 3. The biologic significance, if any, of this seemingly nonrandom coexistence of multiple polysomies with structural aberrations of 3p is at present not known. The pattern of numerical chromosome aberrations observed in the present study is comparable to previous results from fluorescence in situ hybridization (FISH) studies, with the use of centromeric probes on interphase cells. However, unlike FISH studies, which have been focused on chromosomes 1, 3, 7, 8, 11, 16, and 17, the cytogenetic results reveal that other chromosomes also may be nonrandomly gained as part of multiple polysomies in breast carcinomas. In addition, the tumors with multiple polysomies were generally of high histologic grade and with metastasis to axillary lymph nodes, suggesting that multiple wholechromosome gains may be a pathway of genetic evolution or progression or both in some breast carcinomas. FAU - Adeyinka, A AU - Adeyinka A AD - Department of Clinical Genetics, University Hospital, Lund, Sweden. FAU - Mertens, F AU - Mertens F FAU - Idvall, I AU - Idvall I FAU - Bondeson, L AU - Bondeson L FAU - Pandis, N AU - Pandis N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 SB - IM MH - Adult MH - Aged MH - Breast Neoplasms/*genetics/pathology MH - Carcinoma/*genetics/pathology/secondary MH - *Chromosome Aberrations MH - *Chromosomes, Human MH - Female MH - Humans MH - Karyotyping MH - Lymphatic Metastasis MH - Middle Aged EDAT- 1999/05/29 00:00 MHDA- 1999/05/29 00:01 CRDT- 1999/05/29 00:00 PHST- 1999/05/29 00:00 [pubmed] PHST- 1999/05/29 00:01 [medline] PHST- 1999/05/29 00:00 [entrez] AID - S0165460898002337 [pii] AID - 10.1016/s0165-4608(98)00233-7 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 1999 Jun;111(2):144-8. doi: 10.1016/s0165-4608(98)00233-7.