IL-1-induced JAK/STAT signaling is antagonized by TGF-beta to shape CAF heterogeneity in pancreatic ductal adenocarcinoma

Biffi, G., Oni, T. E., Spielman, B., Hao, Y., Elyada, E., Park, Y., Preall, J., Tuveson, D. A. (October 2018) IL-1-induced JAK/STAT signaling is antagonized by TGF-beta to shape CAF heterogeneity in pancreatic ductal adenocarcinoma. Cancer Discov. ISSN 2159-8274

URL: https://www.ncbi.nlm.nih.gov/pubmed/30366930
DOI: 10.1158/2159-8290.cd-18-0710

Abstract

Pancreatic ductal adenocarcinoma (PDAC) is poorly responsive to therapies and histologically contains a paucity of neoplastic cells embedded within a dense desmoplastic stroma. Within the stroma, cancer-associated fibroblasts (CAFs) secrete tropic factors and extracellular matrix components, and have been implicated in PDAC progression and chemotherapy resistance. We recently identified two distinct CAF subtypes characterized by either myofibroblastic or inflammatory phenotypes; however, the mechanisms underlying their diversity and their roles in PDAC remain unknown. Here, we use organoid and mouse models to identify TGF-beta and IL-1 as tumor-secreted ligands that promote CAF heterogeneity. We show that IL-1 induces LIF expression and downstream JAK/STAT activation to generate inflammatory CAFs, and demonstrate that TGF-beta antagonizes this process by downregulating IL-1R1 expression and promoting differentiation into myofibroblasts. Our results provide a mechanism through which distinct fibroblast niches are established in the PDAC microenvironment and illuminate strategies to selectively target CAFs that support tumor growth.

Item Type: Paper
Subjects: organs, tissues, organelles, cell types and functions > cell types and functions > cell types > fibroblasts
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > fibroblasts
organs, tissues, organelles, cell types and functions > cell types and functions > cell types > fibroblasts

diseases & disorders > cancer > cancer types > pancreatic cancer
bioinformatics > genomics and proteomics > genetics & nucleic acid processing > protein structure, function, modification > protein types > TGF-beta
CSHL Authors:
Communities: CSHL labs > Tuveson lab
Depositing User: Matthew Dunn
Date: 26 October 2018
Date Deposited: 01 Nov 2018 19:05
Last Modified: 01 Nov 2018 19:05
Related URLs:
URI: http://repository.cshl.edu/id/eprint/37268

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