PMID- 16080959 OWN - NLM STAT- MEDLINE DCOM- 20050915 LR - 20060406 IS - 0165-4608 (Print) IS - 0165-4608 (Linking) VI - 161 IP - 1 DP - 2005 Aug TI - The human ovarian teratocarcinoma cell line PA-1 demonstrates a single translocation: analysis with fluorescence in situ hybridization, spectral karyotyping, and bacterial artificial chromosome microarray. PG - 63-9 AB - Cell lines derived from tumors contain numerous chromosomal aberrations and are the focus of study in tumor evolution. The ovarian teratocarcinoma cell line PA-1 demonstrates a single chromosomal aberration: a reciprocal t(15;20)(p11.2;q11.2). A complete molecular genetic analysis was undertaken to characterize this cell line. The PA-1 cell line was studied with fluorescence in situ hybridization (FISH), spectral karyotyping (SKY), bacterial artificial chromosome (BAC) microarray, and Western blotting. Amplification of 20q is frequently implicated in both breast and ovarian cancer; this region contains a number of oncogenes including MDM2, ZNF217, and the ovarian tumor marker WFDC2 (alias HE4). FISH revealed gene amplification of AIB1 (now known as NCOA3) but not STK15 (now known as AURKA). Immunoblot analysis demonstrated 3.6-fold overexpression of the AIB1 protein product, but no elevation of the STK15. BAC cancer gene microarray analysis showed gene amplification of > or =1.20 for five oncogenes. The presence of a consistent single change in PA-1, the t(15;20)(p11.2;q11.2), suggests that the aberration is significant with respect to the transformation status of the cell line. This translocation appears to cause overexpression of AIB1 (and perhaps other proteins), which may provide an immortalizing effect on this cell line. FAU - Sarraf, Shireen AU - Sarraf S AD - Department of Oncology, Georgetown University, 3800 Reservoir Road NW, Washington, DC 20007, USA. FAU - Tejada, Raphael AU - Tejada R FAU - Abawi, Massih AU - Abawi M FAU - Oberst, Michael AU - Oberst M FAU - Dennis, Tom AU - Dennis T FAU - Simon, Kelly Claire AU - Simon KC FAU - Blancato, Jan AU - Blancato J LA - eng PT - Journal Article PL - United States TA - Cancer Genet Cytogenet JT - Cancer genetics and cytogenetics JID - 7909240 SB - IM MH - Blotting, Western MH - *Chromosome Aberrations MH - Chromosome Banding MH - Chromosomes, Artificial, Bacterial/*genetics MH - Chromosomes, Human, Pair 20/genetics MH - Chromosomes, Human, Pair 8/genetics MH - Female MH - Humans MH - In Situ Hybridization, Fluorescence MH - Microarray Analysis MH - Oncogenes/physiology MH - Ovarian Neoplasms/*genetics/pathology MH - Spectral Karyotyping MH - Teratocarcinoma/*genetics/pathology MH - Translocation, Genetic/*genetics MH - Tumor Cells, Cultured EDAT- 2005/08/06 09:00 MHDA- 2005/09/16 09:00 CRDT- 2005/08/06 09:00 PHST- 2004/09/30 00:00 [received] PHST- 2004/12/15 00:00 [revised] PHST- 2005/01/04 00:00 [accepted] PHST- 2005/08/06 09:00 [pubmed] PHST- 2005/09/16 09:00 [medline] PHST- 2005/08/06 09:00 [entrez] AID - S0165-4608(05)00017-8 [pii] AID - 10.1016/j.cancergencyto.2005.01.003 [doi] PST - ppublish SO - Cancer Genet Cytogenet. 2005 Aug;161(1):63-9. doi: 10.1016/j.cancergencyto.2005.01.003.