Premium
Detection of numerical chromosomal aberrations in malignant melanomas using fluorescence in situ hybridization
Author(s) -
Matsuta Mayumi,
Imamura Yuko,
Matsuta Morimasa,
Sasaki Kohsuke,
Kon Saiichi
Publication year - 1997
Publication title -
journal of cutaneous pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.597
H-Index - 75
eISSN - 1600-0560
pISSN - 0303-6987
DOI - 10.1111/j.1600-0560.1997.tb01581.x
Subject(s) - monosomy , fluorescence in situ hybridization , biology , chromosome , chromosome 7 (human) , chromosome 22 , chromosome 17 (human) , aneuploidy , chromosome 3 , microbiology and biotechnology , genetics , karyotype , gene
To evaluate the numerical chromosomal aberration i malignant melanoma, we have applied fluorescence in situ hybridization (FISH) with repetitive DNA probes specific for chromosomes 1, 6, 7, 9, 10, and 17 on 24 fresh malignant melanomas (primary: 14, metastatic: 8). We defined a tumor that had copies with more than 3 spots as chromosomal gain. Chromosomal copy number gain was found in 40.9% of the cases for chromosome 7, 27.2% for chromosome 6, 27.2% for chromosome 17, 22.7% for chromosome 9 and 10, and 4.5% for chromosome I. Monosomy was found in 54.5% of the cases for chromosome 10, 36.5% for chromosome 9, 27.2% for chromosome 6, 22.7% for chromosome17, and 18.1% for chromosome 1 and 7 The most frequent numerical alterations were seen in chromosomes 6, 7, 9 and 10. Gain of chromosome 6 and 7 and/or losses of chromosome 9 and 10 may play an important role in the tumorigenesis and development of malignant melanomas.