Contextual cues from cancer cells govern cancer-associated fibroblast heterogeneity

Cell Rep. 2021 Apr 20;35(3):109009. doi: 10.1016/j.celrep.2021.109009.

Abstract

Cancer cells function as primary architects of the tumor microenvironment. However, the molecular features of cancer cells that govern stromal cell phenotypes remain unclear. Here, we show that cancer-associated fibroblast (CAF) heterogeneity is driven by lung adenocarcinoma (LUAD) cells at either end of the epithelial-to-mesenchymal transition (EMT) spectrum. LUAD cells that have high expression of the EMT-activating transcription factor ZEB1 reprogram CAFs through a ZEB1-dependent secretory program and direct CAFs to the tips of invasive projections through a ZEB1-driven CAF repulsion process. The EMT, in turn, sensitizes LUAD cells to pro-metastatic signals from CAFs. Thus, CAFs respond to contextual cues from LUAD cells to promote metastasis.

Keywords: EMT; cancer-associated fibroblast; invasion; lung cancer; metastasis; microRNA; secretion; single-cell RNA sequencing; tumor microenvironment.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenocarcinoma of Lung / genetics*
  • Adenocarcinoma of Lung / metabolism
  • Adenocarcinoma of Lung / secondary
  • Alpha-Globulins / genetics
  • Alpha-Globulins / metabolism
  • Animals
  • Cancer-Associated Fibroblasts / metabolism*
  • Cancer-Associated Fibroblasts / pathology
  • Cell Communication
  • Cell Line, Tumor
  • Cell Movement
  • Cell Proliferation
  • Discoidin Domain Receptor 2 / genetics
  • Discoidin Domain Receptor 2 / metabolism
  • Epithelial Cells / metabolism*
  • Epithelial Cells / pathology
  • Epithelial-Mesenchymal Transition / genetics
  • Gene Expression Profiling
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Kidney Neoplasms / genetics*
  • Kidney Neoplasms / metabolism
  • Kidney Neoplasms / secondary
  • Lung Neoplasms / genetics*
  • Lung Neoplasms / metabolism
  • Lung Neoplasms / pathology
  • Male
  • Mesenchymal Stem Cells / metabolism*
  • Mesenchymal Stem Cells / pathology
  • Mice
  • Mice, Transgenic
  • Signal Transduction
  • Tumor Microenvironment / genetics
  • Zinc Finger E-box-Binding Homeobox 1 / genetics*
  • Zinc Finger E-box-Binding Homeobox 1 / metabolism

Substances

  • Alpha-Globulins
  • ZEB1 protein, human
  • Zinc Finger E-box-Binding Homeobox 1
  • inter-alpha-inhibitor
  • DDR2 protein, human
  • Discoidin Domain Receptor 2