Predictors of response and survival for neoadjuvant treated patients with esophageal adenocarcinoma

Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus
J TheisenJ-R Siewert

Abstract

Mainly patients with advanced esophageal adenocarcinoma who respond to neoadjuvant chemotherapy show a significant survival benefit after resection. Therefore, prediction of response before treatment is desirable. The aim of this study was to assess genetic predictors of response and survival for patients with esophageal adenocarcinoma prior to neoadjuvant therapy. Thirty-two patients with advanced esophageal adenocarcinoma who underwent neoadjuvant therapy with resection of their tumor were analyzed for thymidylate synthase (TS), excision repair cross complementing (ERCC1) and Gluthatione S-transferase (GSTP-1) mRNA levels prior to the treatment. These results were analyzed in regards of response and survival. In total, 18 patients responded to this protocol. Seventeen of those did show a gene expression level at or below the respective median of at least one gene. This had a profound impact on survival, demonstrating an increase in survival for patients who have TS, ERCC1, or GSTP-1 mRNA level at or below the median. These results demonstrate a potential predictive value of a gene expression profile available prior to therapy. These data have to be confirmed by a larger prospective trial.

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Citations

Mar 5, 2009·Nature Clinical Practice. Gastroenterology & Hepatology·Ken HerrmannMatthias P A Ebert
Nov 11, 2009·Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen·H J SteinJ R Siewert
Nov 13, 2015·Expert Review of Gastroenterology & Hepatology·M A Blum MurphyJaffer A Ajani
Dec 17, 2010·World Journal of Gastrointestinal Surgery·Joerg TheisenHelmut Friess
Jun 16, 2015·The American Journal of Surgical Pathology·Agoston T AgostonAmitabh Srivastava

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