Cross-species single-cell analysis of pancreatic ductal adenocarcinoma reveals antigen-presenting cancer-associated fibroblasts

Elyada, E., Bolisetty, M., Laise, P., Flynn, W. F., Courtois, E. T., Burkhart, R. A., Teinor, J. A., Belleau, P., Biffi, G., Lucito, M. S., Sivajothi, S., Armstrong, T. D., Engle, D. D., Yu, K. H., Hao, Y., Wolfgang, C. L., Park, Y., Preall, J., Jaffee, E. M., Califano, A., Robson, P., Tuveson, D. A. (June 2019) Cross-species single-cell analysis of pancreatic ductal adenocarcinoma reveals antigen-presenting cancer-associated fibroblasts. Cancer Discov, 9 (8). pp. 1102-1123. ISSN 2159-8274

URL: https://www.ncbi.nlm.nih.gov/pubmed/31197017
DOI: 10.1158/2159-8290.cd-19-0094

Abstract

Cancer-associated fibroblasts (CAFs) are major players in the progression and drug resistance of pancreatic ductal adenocarcinoma (PDAC). CAFs constitute a diverse cell population consisting of several recently described subtypes, although the extent of CAF heterogeneity has remained undefined. Here we employ single-cell RNA sequencing to thoroughly characterize the neoplastic and tumor microenvironment content of human and mouse PDAC tumors. We corroborate the presence of myofibroblastic CAFs (myCAFs) and inflammatory CAFs (iCAFs) and define their unique gene signatures in vivo. Moreover, we describe a new population of CAFs that express MHC class II and CD74, but do not express classical co-stimulatory molecules. We term this cell population "antigen-presenting CAFs" (apCAFs), and find that they activate CD4+ T cells in an antigen-specific fashion in a model system, confirming their putative immune-modulatory capacity. Our cross-species analysis paves the way for investigating distinct functions of CAF subtypes in PDAC immunity and progression.

Item Type: Paper
Subjects: diseases & disorders > cancer
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

Investigative techniques and equipment > assays > Single cell sequencing
CSHL Authors:
Communities: CSHL labs > Preall lab
CSHL labs > Tuveson lab
Depositing User: Matthew Dunn
Date: 13 June 2019
Date Deposited: 19 Jul 2019 19:24
Last Modified: 20 Aug 2019 20:09
Related URLs:
URI: http://repository.cshl.edu/id/eprint/38181

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