| Autor: |
Noguchi, Tsuyoshi, Müller, Wolfram, Wirtz, Hans‐Christian, Willers, Reinhard, Gabbert, Helmut E. |
| Zdroj: |
The Journal of Pathology; August 1999, Vol. 188 Issue: 4 p378-381, 4p |
| Abstrakt: |
The FHIT(fragile histidine triad) gene has been recently identified and cloned at chromosome 3p14.2 including FRA3B, the most common fragile site in the human genome. FHITis suggested to be a candidate tumour suppressor gene in gastrointestinal tract tumours. To elucidate the role of the FHITgene in gastric cancer, a total of 133 curatively R0‐resected gastric carcinomas were investigated for loss of heterozygosity (LOH) at 3p14.2, using four polymorphic microsatellite loci (D3S1300, D3S1313, D3S1481, and D3S1234). LOH of the FHITgene affecting at least one of the investigated loci was observed in 20 of 123 informative tumours (16·3 per cent). The presence of LOH was correlated neither with major prognostic factors such as pT category, pN category or vascular invasion, nor with histological type or grade of differentiation of the tumours. In addition, there were no differences in the prognosis between patients with gastric carcinomas showing LOH at the FHITgene and patients with tumours lacking LOH at the FHITgene. These findings suggest that LOH of the FHITgene represents an event in the tumourigenesis of only a small subset of gastric carcinomas and does not correlate with tumour progression or prognosis. Copyright © 1999 John Wiley & Sons, Ltd. |
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