Early Detection Research Network

Esophagus

Esophageal adenocarcinoma risk in Barrett's esophagus is increased 30- to 125- fold versus the general population. Among all Barrett's esophagus patients neoplastic progression occurs only once per 200 patient-years. Molecular markers (individual or in panel) would be useful to risk-stratify patients for more efficient surveillance endoscopy and to improve the early detection of progression.
http://edrn.jpl.nasa.gov/bmdb/biomarkers/organs/47/68
Accepted
Two
Promoter hypermethylation of TAC1 occurs early in both major types of human esophageal carcinoma, and is a potential biomarker of poor prognosis in esophageal squamous cell carcinoma. Studies are ongoing.
596c33b89afc40cc803d64b226c98647
no
no
Contents
Barrett's Esophagus Methylation Profiles

We propose a nested case-control study of biomarkers in the setting of BE. By bringing together research institutions with large populations of patients with BE, we will perform a multi-center study of FISH and hypermethylation markers as possible prognostic factors in BE. The centers will select from their cohorts who have progressed to HGD or to adenocarcinoma of the esophagus ("progressors"), and who also donated samples prior to the development of cancer, when their histology was felt to be benign. These subjects will be compared to individuals who have been under endoscopic surveillance, but who have not progressed to HGD or EAC ("non-progressors"). Using this approach, we hope to identify promising markers for risk stratification in BE. We expect to be able to make successful application for a prospective study of markers identified in this case-control study.