Abstract
Identification of changes in specific genes may help new attempts in finding targeted therapy for oesophageal cancer which still has a very poor prognosis. The aim of this study was to investigate CD117 expression in squamous cell carcinoma of the oesophagus (SCCO). A preliminary study was performed for CD177 immunoreactivity using a monoclonal antibody against CD117 on 27 SCCO specimens from patients who underwent surgical resection. Specimens of oesophageal mucosa obtained from 10 healthy individuals were studied as a control group. Most patients had TNM American Joint Committee on Cancer stage IIb or III SCCO and mean overall survival was 21 (range=2-72) months. Cytoplasmic membrane CD117 immunoreactivity was demonstrated in only four (15%) out of 27 tumours and in none of the controls. Although immunohistochemical expression of CD117 was higher than previously demonstrated, the lack of expression does not warranty further use in targeted therapy of SCCO.
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