Dynamic clonal equilibrium and predetermined cancer risk in Barrett's oesophagus

Pierre Martinez, Margriet R. Timmer, Chiu T. Lau, Silvia Calpe, Maria Del Carmen Sancho-Serra, Danielle Straub, Ann Marie Baker, Sybren L. Meijer, Fiebo J W Ten Kate, Rosalie C. Mallant-Hent, Anton H J Naber, Arnoud H A M Van Oijen, Lubbertus C. Baak, Pieter Scholten, Clarisse J M Böhmer, Paul Fockens, Jacques J G H M Bergman, Carlo Maley, Trevor A. Graham, Kausilia K. Krishnadath

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

Abstract

Surveillance of Barrett's oesophagus allows us to study the evolutionary dynamics of a human neoplasm over time. Here we use multicolour fluorescence in situ hybridization on brush cytology specimens, from two time points with a median interval of 37 months in 195 non-dysplastic Barrett's patients, and a third time point in a subset of 90 patients at a median interval of 36 months, to study clonal evolution at single-cell resolution. Baseline genetic diversity predicts progression and remains in a stable dynamic equilibrium over time. Clonal expansions are rare, being detected once every 36.8 patient years, and growing at an average rate of 1.58 cm 2 (95% CI: 0.09-4.06) per year, often involving the p16 locus. This suggests a lack of strong clonal selection in Barrett's and that the malignant potential of â € benign' Barrett's lesions is predetermined, with important implications for surveillance programs.

Original languageEnglish (US)
Article number12158
JournalNature communications
Volume7
DOIs
StatePublished - Aug 19 2016

ASJC Scopus subject areas

  • Chemistry(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Dynamic clonal equilibrium and predetermined cancer risk in Barrett's oesophagus'. Together they form a unique fingerprint.

Cite this