Detection of methylation of hMSH2 gene promoter region of esophageal cancer / 中华肿瘤杂志
Chinese Journal of Oncology
;
(12): 541-543, 2005.
Artigo
em Chinês
| WPRIM
| ID: wpr-358576
ABSTRACT
<p><b>OBJECTIVE</b>To detect methylation in promoter region of hMSH2 gene in esophageal cancer.</p><p><b>METHODS</b>Specimens of cancer and normal tissues freshly removed from 32 cases of esophageal cancer patients without previous radiotherapy, chemotherapy or other treatment were preserved at -80 degrees C within 30 min. Methylation specific PCR (MSP) was used to detect methylation of mismatch repair gene (MMR) hMSH2 in promoter region in esophageal cancer and normal esophageal tissues.</p><p><b>RESULTS</b>The frequencies of methylation of hMSH2 gene in promoter region of cancer and normal esophageal tissues were 32.4% (11/32) and 0/30 (0%), respectively, and significant difference was found between the two groups (P < 0.01). The frequency of methylation in elder patients (> or = 70 years old) was significantly higher than that in younger patients (< 70 years old) (P < 0.05). Methylation was less frequently found in grade I-II (18.2%) than in grade III-IV (70.0%) (P < 0.05).</p><p><b>CONCLUSION</b>Methylation of hMSH2 gene in promoter region is related to patients' age and histopathological grade of the esophageal cancer.</p>
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Assunto principal:
Patologia
/
Neoplasias Esofágicas
/
Carcinoma de Células Escamosas
/
Transfecção
/
Regulação Neoplásica da Expressão Gênica
/
Regiões Promotoras Genéticas
/
Metilação de DNA
/
Pareamento Incorreto de Bases
/
Proteína 2 Homóloga a MutS
/
Genética
Tipo de estudo:
Estudo diagnóstico
Limite:
Idoso
/
Feminino
/
Humanos
/
Masculino
Idioma:
Chinês
Revista:
Chinese Journal of Oncology
Ano de publicação:
2005
Tipo de documento:
Artigo
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