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Genomic copy number predicts esophageal cancer years before transformation
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Journal Article
Genomic copy number predicts esophageal cancer years before transformation
2020
Overview
Recent studies show that aneuploidy and driver gene mutations precede cancer diagnosis by many years
1
–
4
. We assess whether these genomic signals can be used for early detection and pre-emptive cancer treatment using the neoplastic precursor lesion Barrett’s esophagus as an exemplar
5
. Shallow whole-genome sequencing of 777 biopsies, sampled from 88 patients in Barrett’s esophagus surveillance over a period of up to 15 years, shows that genomic signals can distinguish progressive from stable disease even 10 years before histopathological transformation. These findings are validated on two independent cohorts of 76 and 248 patients. These methods are low-cost and applicable to standard clinical biopsy samples. Compared with current management guidelines based on histopathology and clinical presentation, genomic classification enables earlier treatment for high-risk patients as well as reduction of unnecessary treatment and monitoring for patients who are unlikely to develop cancer.
Longitudinal molecular profiling of copy number alterations in patients with Barrett’s esophagus can identify patients at higher risk of developing esophageal cancer.
Publisher
Nature Publishing Group US,Nature Publishing Group
Subject
/ Aged
/ Barrett Esophagus - epidemiology
/ Barrett Esophagus - genetics
/ Barrett Esophagus - pathology
/ Biomedical and Life Sciences
/ Biopsy
/ Cancer
/ DNA Copy Number Variations - genetics
/ Esophageal Neoplasms - epidemiology
/ Esophageal Neoplasms - genetics
/ Esophageal Neoplasms - pathology
/ Female
/ Genomes
/ Genomics
/ Humans
/ Letter
/ Male
/ Mutation
/ Patients
/ Precancerous Conditions - epidemiology
/ Precancerous Conditions - genetics
