Single cell RNA-seq reveals profound transcriptional similarity between Barrett's oesophagus and oesophageal submucosal glands

Richard Peter Owen, Michael Joseph White, David Tyler Severson, Barbara Braden, Adam Bailey, Robert Goldin, Lai Mun Wang, Carlos Ruiz-Puig, Nicholas David Maynard, Angie Green, Paolo Piazza, David Buck, Mark Ross Middleton, Chris Paul Ponting, Benjamin Schuster-Böckler, Xin Lu

Research output: Contribution to journalArticlepeer-review

Abstract

Barrett's oesophagus is a precursor of oesophageal adenocarcinoma. In this common condition, squamous epithelium in the oesophagus is replaced by columnar epithelium in response to acid reflux. Barrett's oesophagus is highly heterogeneous and its relationships to normal tissues are unclear. Here we investigate the cellular complexity of Barrett's oesophagus and the upper gastrointestinal tract using RNA-sequencing of single cells from multiple biopsies from six patients with Barrett's oesophagus and two patients without oesophageal pathology. We find that cell populations in Barrett's oesophagus, marked by LEFTY1 and OLFM4, exhibit a profound transcriptional overlap with oesophageal submucosal gland cells, but not with gastric or duodenal cells. Additionally, SPINK4 and ITLN1 mark cells that precede morphologically identifiable goblet cells in colon and Barrett's oesophagus, potentially aiding the identification of metaplasia. Our findings reveal striking transcriptional relationships between normal tissue populations and cells in a premalignant condition, with implications for clinical practice.

Original languageEnglish
Pages (from-to)4261
JournalNature Communications
Volume9
Issue number1
DOIs
Publication statusPublished - 15 Oct 2018

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