Decoding spatiotemporal transcriptional dynamics and epithelial fibroblast crosstalk during gastroesophageal junction development through single cell analysis

© 2024. The Author(s)..

The gastroesophageal squamocolumnar junction (GE-SCJ) is a critical tissue interface between the esophagus and stomach, with significant relevance in the pathophysiology of gastrointestinal diseases. Despite this, the molecular mechanisms underlying GE-SCJ development remain unclear. Using single-cell transcriptomics, organoids, and spatial analysis, we examine the cellular heterogeneity and spatiotemporal dynamics of GE-SCJ development from embryonic to adult mice. We identify distinct transcriptional states and signaling pathways in the epithelial and mesenchymal compartments of the esophagus and stomach during development. Fibroblast-epithelial interactions are mediated by various signaling pathways, including WNT, BMP, TGF-β, FGF, EGF, and PDGF. Our results suggest that fibroblasts predominantly send FGF and TGF-β signals to the epithelia, while epithelial cells mainly send PDGF and EGF signals to fibroblasts. We observe differences in the ligands and receptors involved in cell-cell communication between the esophagus and stomach. Our findings provide insights into the molecular mechanisms underlying GE-SCJ development and fibroblast-epithelial crosstalk involved, paving the way to elucidate mechanisms during adaptive metaplasia development and carcinogenesis.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:15

Enthalten in:

Nature communications - 15(2024), 1 vom: 09. Apr., Seite 3064

Sprache:

Englisch

Beteiligte Personen:

Kumar, Naveen [VerfasserIn]
Prakash, Pon Ganish [VerfasserIn]
Wentland, Christian [VerfasserIn]
Kurian, Shilpa Mary [VerfasserIn]
Jethva, Gaurav [VerfasserIn]
Brinkmann, Volker [VerfasserIn]
Mollenkopf, Hans-Joachim [VerfasserIn]
Krammer, Tobias [VerfasserIn]
Toussaint, Christophe [VerfasserIn]
Saliba, Antoine-Emmanuel [VerfasserIn]
Biebl, Matthias [VerfasserIn]
Jürgensen, Christian [VerfasserIn]
Wiedenmann, Bertram [VerfasserIn]
Meyer, Thomas F [VerfasserIn]
Gurumurthy, Rajendra Kumar [VerfasserIn]
Chumduri, Cindrilla [VerfasserIn]

Links:

Volltext

Themen:

62229-50-9
Epidermal Growth Factor
Journal Article
Transforming Growth Factor beta

Anmerkungen:

Date Completed 11.04.2024

Date Revised 25.04.2024

published: Electronic

Citation Status MEDLINE

doi:

10.1038/s41467-024-47173-z

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM370835735