TP53 gene mutations are rare in nondysplastic Barrett's esophagus

. 2006 Jan ; 51 (1) : 110-3.

Jazyk angličtina Země Spojené státy americké Médium print

Typ dokumentu srovnávací studie, časopisecké články, práce podpořená grantem

Perzistentní odkaz   https://www.medvik.cz/link/pmid16416221

In search of potential prognostic markers, we analyzed a large series of tissues of Barrett's esophagus and samples of adenocarcinomas arising in the terrain of Barrett's esophagus for TP53 gene mutations by direct sequencing of exons 5 to 9 of the TP53 gene. While 9 of 21 adenocarcinomas tested (42.9%) contained a TP53 mutation, none of 24 samples from Barrett's esophagus were mutated. This observation suggests that TP53 gene mutation may be a relatively late event in the progression from nondysplastic Barrett's esophagus to adenocarcinoma of esophagus. Therefore, TP53 gene mutations alone are not likely to represent a widely useful prognostic marker of the risk of progression to malignancy, at least not in Barrett's esophagus without dysplasia.

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