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Mol Biol (Mosk) ; 47(5): 835-41, 2013.
Artigo em Russo | MEDLINE | ID: mdl-25509356

RESUMO

We examined allelic imbalance (AI) on loci 17p13.1 (TP53), 1p36.1 (RUNX) and 16p22 (CDHI) and microsatellite instability (MI) with BAT26 in 78 patients with gastric cancer. We have shown a significant difference in the frequency of allelic imbalance of the studied loci among different types of gastric cancer. Frequency of AI in 16p22.1 (CDH1) (p = 0.023), 17p13.1 (TP53) (p = 0.038), microsatellite instability (p = 0.047) and AD two and more loci in a single sample (p = 0.0176) was significantly higher in the intestinal type of gastric cancer than in the diffuse type. We have shown, that, frequency of AI in 16p22.1 (CDH1), and AD two and more loci in a single sample, was higher in thetumors with high or moderate type of tumor cells differentiation (p = 0.0414, p = 0.0057 respectively). We found no significant differences in the groups with metastases in regional lymph nodes, different tumor stage, localization of tumors and the generalization process.


Assuntos
Caderinas/genética , Subunidade alfa 3 de Fator de Ligação ao Core/genética , Instabilidade de Microssatélites , Neoplasias Gástricas/genética , Proteína Supressora de Tumor p53/genética , Desequilíbrio Alélico/genética , Antígenos CD , Cromossomos Humanos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Gástricas/patologia
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