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.
Copyright © 2021 The Author(s). Published by Elsevier Inc. All rights reserved.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Adenocarcinoma of Lung / genetics*
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Adenocarcinoma of Lung / metabolism
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Adenocarcinoma of Lung / secondary
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Alpha-Globulins / genetics
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Alpha-Globulins / metabolism
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Animals
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Cancer-Associated Fibroblasts / metabolism*
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Cancer-Associated Fibroblasts / pathology
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Cell Communication
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Cell Line, Tumor
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Cell Movement
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Cell Proliferation
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Discoidin Domain Receptor 2 / genetics
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Discoidin Domain Receptor 2 / metabolism
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Epithelial Cells / metabolism*
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Epithelial Cells / pathology
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Epithelial-Mesenchymal Transition / genetics
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Gene Expression Profiling
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Gene Expression Regulation, Neoplastic
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Humans
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Kidney Neoplasms / genetics*
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Kidney Neoplasms / metabolism
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Kidney Neoplasms / secondary
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Lung Neoplasms / genetics*
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Lung Neoplasms / metabolism
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Lung Neoplasms / pathology
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Male
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Mesenchymal Stem Cells / metabolism*
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Mesenchymal Stem Cells / pathology
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Mice
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Mice, Transgenic
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Signal Transduction
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Tumor Microenvironment / genetics
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Zinc Finger E-box-Binding Homeobox 1 / genetics*
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Zinc Finger E-box-Binding Homeobox 1 / metabolism
Substances
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Alpha-Globulins
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ZEB1 protein, human
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Zinc Finger E-box-Binding Homeobox 1
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inter-alpha-inhibitor
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DDR2 protein, human
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Discoidin Domain Receptor 2