A fluorescence in situ hybridization (FISH) analysis with centromere-specific DNA probes of chromosomes 3 and 17 in pleomorphic adenomas and adenoid cystic carcinomas.
Aberrations of chromosomes 3 and 17 were studied by FISH using centromere-specific DNA probes in 11 salivary adenoid cystic carcinomas (ACC) and 8 salivary pleomorphic adenomas (PA), with 3 lymph nodes as controls. Two hybridized signals were detected in 92.8 +/- 2.7% of controls, 73.2 +/- 7.0% of PA and 66.8 +/- 7.9% of ACC cells for chromosome 3, and in 90.4 +/- 2.3% of controls, 59.5 +/- 25.0% of PA and 44.8 +/- 20.2% of ACC for chromosome 17. More than 3 hybridized signals, which indicate polysomy, were observed in 3.1% of controls, 15.5% of PA and 22.9% of ACC cells for chromosome 3, and in 1.2% of controls, 10.3% of PA and 23.1% of ACC cells for chromosome 17. A single hybridized signal was much more frequent for chromosome 17 than for chromosome 3. These findings suggest that polysomy of both chromosomes occurs during the development of salivary gland tumors, and its frequency is increased in adenoid cystic carcinoma as compared to pleomorphic adenoma. In addition, monosomy of chromosome 17 could possibly be significant in salivary gland tumors.
Li
X
X
Department of Oral and Maxillofacial Surgery, Yamaguchi University School of Medicine, Ube, Japan.
Tsuji
T
T
Wen
S
S
Mimura
Y
Y
Wang
Z
Z
Sasaki
K
K
Shinozaki
F
F
D008949:Adenoma, Pleomorphic / Q000235:genetics* / Q000648:ultrastructure; D000293:Adolescent; D000328:Adult; D000368:Aged; D000782:Aneuploidy; D003528:Carcinoma, Adenoid Cystic / Q000235:genetics* / Q000648:ultrastructure; D002503:Centromere / Q000235:genetics* / Q000648:ultrastructure; D002869:Chromosome Aberrations / Q000235:genetics; D002886:Chromosomes, Human, Pair 17 / Q000235:genetics* / Q000648:ultrastructure; D002893:Chromosomes, Human, Pair 3 / Q000235:genetics* / Q000648:ultrastructure; D015342:DNA Probes; D004273:DNA, Neoplasm / Q000032:analysis*; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D008198:Lymph Nodes / Q000378:metabolism / Q000648:ultrastructure; D008875:Middle Aged; D012468:Salivary Gland Neoplasms / Q000235:genetics*
D015342:DNA Probes; D004273:DNA, Neoplasm