PMID- 16296333 OWN - NLM STAT- MEDLINE DCOM- 20060124 LR - 20191210 IS - 0047-1860 (Print) IS - 0047-1860 (Linking) VI - 53 IP - 10 DP - 2005 Oct TI - Nonrandom chromosomal numerical abnormality as a new molecular cytogenetic tumor marker--a retrospective study of 60 gastric cancer cases. PG - 881-6 AB - Chromosomal numerical abnormality (CNA) is one of the distinct characteristics of human cancers, though the mechanisms and tumor specificity of this phenomenon have not been adequately analyzed. Recently, we developed a new sensitive fluorescence in situ hybridization (FISH) method that involves short-term microwave (MW) treatment for hybridization. In this study, we applied this modified FISH technique to investigate the CNA of 60 gastric cancer cases with a panel of 18 chromosome-specific alpha-satellite probes (for chromosome 1-4, 6-12, 15-18, 20, X, and Y) and region-specific probes (c-myc, p53, and Her-2/neu) to enumerate the respective chromosome numbers in interphase nuclei of formalin-fixed paraffin-embedded sections. The numerical aberrations of chromosome 1, 3, 8, 17, 20, and X were frequent regardless of histologic types, whereas aberrations of chromosomes 10, 15, and 18 occurred less frequently (p<0.001). From a histopathological standpoint, the mucocellular type of carcinoma had stable CNA in comparison with the tubular type of carcinoma (21.7+/-9.63% vs. 58.3+/-12.32%, p<0.001) and, of note, there was less extensive CNA in female cases. A dramatic difference in patient outcome was detected according to the involvement of chromosomes 3, 10, 11, 12, 17, and Y; cases with CNA of these chromosomes had a worse prognosis (p<0.001). A two-step analysis of the CNA of 6 chromosomes and locus specific gene abnormalities successfully divided gastric cancer cases into those with a good outcome and those with a poor outcome. This analysis allows one to more accurately predict prognosis than by using a simple classification based on conventional clinicopathological diagnosis. FAU - Kitayama, Yasuhiko AU - Kitayama Y AD - Department of Pathology, Shizuoka Saiseikai General Hospital, Shizuoka 422-8527. FAU - Sugimura, Haruhiko AU - Sugimura H LA - eng PT - Evaluation Study PT - Journal Article PL - Japan TA - Rinsho Byori JT - Rinsho byori. The Japanese journal of clinical pathology JID - 2984781R RN - 0 (Biomarkers, Tumor) RN - 0 (Genetic Markers) SB - IM MH - Adult MH - Aged MH - Aged, 80 and over MH - *Biomarkers, Tumor MH - *Chromosome Aberrations MH - Chromosomes, Human/*genetics MH - Female MH - Genetic Markers MH - Humans MH - In Situ Hybridization, Fluorescence/methods MH - Male MH - Middle Aged MH - Predictive Value of Tests MH - Prognosis MH - Retrospective Studies MH - Stomach Neoplasms/*diagnosis/*genetics EDAT- 2005/11/22 09:00 MHDA- 2006/01/25 09:00 CRDT- 2005/11/22 09:00 PHST- 2005/11/22 09:00 [pubmed] PHST- 2006/01/25 09:00 [medline] PHST- 2005/11/22 09:00 [entrez] PST - ppublish SO - Rinsho Byori. 2005 Oct;53(10):881-6.