PMID- 14969820 OWN - NLM STAT- MEDLINE DCOM- 20040607 LR - 20041117 IS - 1368-8375 (Print) IS - 1368-8375 (Linking) VI - 40 IP - 4 DP - 2004 Apr TI - Numerical aberrations of chromosomes 8, 9, 11, and 17 in squamous cell carcinoma of the pharynx and larynx: a fluorescence in situ hybridization and DNA flow cytometric analysis of 50 cases. PG - 409-17 AB - Squamous cell carcinoma of the pharynx and larynx (SCCPL) is a genetically complex disease and is frequently associated with nonrandom chromosomal alterations. Fifty primary SCC of the pharynx (oropharynx, n=11): see and hypopharynx, n=11) and larynx ( n=28) were examined for numerical aberrations of chromosomes 8, 9, 11, and 17 with a panel of chromosome-specific repetitive DNA probes by fluorescence in situ hybridization (FISH). DNA ploidy analysis was also performed by flow cytometry (FCM). Aneusomic copy numbers of chromosomes 8, 9, 11, and 17 were discovered in 66%, 68%, 68% and 78% of tumors, respectively. FCM showed abnormal DNA content in 74% of cases (mean DNA index=1.69). Polysomy was the main finding in both DNA-aneuploid and DNA-diploid tumors (64.5% of cases). Numerical aberrations of chromosomes 8 and 11 correlated to DNA ploidy by FCM (P< 0.05). Aneusomy was present in 69.23% of DNA-diploid tumors. Marked intratumoral and intertumoral chromosomal heterogeneity was noted between individual tumors, suggesting a notable heterogeneity in aneuploid and diploid cell populations. Interphase FISH can be used to study important cytogenetic changes which occur during the development of SCC of the pharynx and larynx. FAU - Hardisson, David AU - Hardisson D AD - Department of Pathology, Hospital Universitario La Paz, Autonomous University of Madrid, Paseo de la Castellana 261, E-28046 Madrid, Spain. dhardisson.hulp@salud.madrid.org FAU - Alvarez-Marcos, Cesar AU - Alvarez-Marcos C FAU - Salas-Bustamante, Ana AU - Salas-Bustamante A FAU - Alonso-Guervos, Marta AU - Alonso-Guervos M FAU - Sastre, Noelia AU - Sastre N FAU - Sampedro, Andres AU - Sampedro A LA - eng PT - Journal Article PL - England TA - Oral Oncol JT - Oral oncology JID - 9709118 RN - 0 (DNA, Neoplasm) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - Carcinoma, Squamous Cell/*genetics/pathology MH - *Chromosome Aberrations MH - Chromosomes, Human, Pair 11/genetics MH - Chromosomes, Human, Pair 17/genetics MH - Chromosomes, Human, Pair 8/genetics MH - Chromosomes, Human, Pair 9/genetics MH - DNA, Neoplasm/genetics MH - Flow Cytometry MH - Humans MH - In Situ Hybridization, Fluorescence MH - Laryngeal Neoplasms/*genetics/pathology MH - Male MH - Middle Aged MH - Pharyngeal Neoplasms/*genetics/pathology MH - Ploidies EDAT- 2004/02/19 05:00 MHDA- 2004/06/21 10:00 CRDT- 2004/02/19 05:00 PHST- 2003/09/04 00:00 [received] PHST- 2003/09/18 00:00 [accepted] PHST- 2004/02/19 05:00 [pubmed] PHST- 2004/06/21 10:00 [medline] PHST- 2004/02/19 05:00 [entrez] AID - S1368837503002136 [pii] AID - 10.1016/j.oraloncology.2003.09.008 [doi] PST - ppublish SO - Oral Oncol. 2004 Apr;40(4):409-17. doi: 10.1016/j.oraloncology.2003.09.008.