Gene mutations in esophageal mucosa of chagas disease patients.

نویسندگان

  • Fernanda DA Silva Manoel-Caetano
  • Aparecida F P Silveira
  • Ana Elizabete Silva
چکیده

BACKGROUND Chagas disease patients with longstanding megaesophagus have a significantly increased risk for esophageal carcinoma. MATERIALS AND METHODS PCR-SSCP analysis and DNA sequencing of esophageal mucosa from Chagas disease patients (with or without megaesophagus) in the exons of the TP53, CDKN2A and FHIT genes were performed. RESULTS SSCP analysis showed a mobility shift in 2/20 patients with grade IV megaesophagus (CDKN2A exon 1 and FHIT exon 7) and in 1/10 patients without megaesophagus (TP53 exons 5 and 8). However, DNA sequencing indicated a silent mutation in exon 7 of the FHIT gene (GCT --> GCC) in codon 88 in only one case of megaesophagus. CONCLUSION Gene mutations are rare events in the exons investigated in esophageal mucosa of Chagas disease patients and further investigations are important to clarify the possible involvement of this silent mutation in exon 7 (FHIT gene) in the advanced grades of megaesophagus and esophageal carcinogenesis.

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عنوان ژورنال:
  • Anticancer research

دوره 29 4  شماره 

صفحات  -

تاریخ انتشار 2009