Cited by 566Pancreatic and Hepatic Oncology ResearchCancer Immunotherapy and BiomarkersTGF-β signaling in diseases

Type I collagen deletion in αSMA+ myofibroblasts augments immune suppression and accelerates progression of pancreatic cancer

Open access
Chen, Yang, Kim, Jiha, Yang, Sujuan, Wang, Huamin, Wu, Chang-Jiun, Sugimoto, Hikaru, LeBleu, Valerie S., Kalluri, Raghu·2021·Cancer Cell

Abstract

Stromal desmoplastic reaction in pancreatic ductal adenocarcinoma (PDAC) involves significant accumulation of type I collagen (Col1). However, the precise molecular and mechanistic contribution of Col1 in PDAC progression remains unknown. Activated pancreatic stellate cells/αSMA+ myofibroblasts are major contributors of Col1 in the PDAC stroma. We use a dual-recombinase genetic mouse model of spontaneous PDAC to delete Col1 specifically in myofibroblasts. This results in significant reduction of total stromal Col1 content and accelerates the emergence of PanINs and PDAC, decreasing overall survival. Col1 deletion leads to Cxcl5 upregulation in cancer cells via SOX9. Increase in Cxcl5 is associated with recruitment of myeloid-derived suppressor cells and suppression of CD8+ T cells, which can be attenuated with combined targeting of CXCR2 and CCR2 to restrain accelerated PDAC progression in the setting of stromal Col1 deletion. Our results unravel the fundamental role of myofibroblast-derived Co1l in regulating tumor immunity and restraining PDAC progression.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.ccell.2021.02.007

Cites

100 of 100 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The majority of collagen in PDAC is type I collagen, largely generated by CAFs.

    “The majority of collagen is type I collagen164, largely generated by CAFs147,165”

    From Pancreatic cancer: Advances and challenges (2023) · cites this paper as [165]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Chen, Y., Kim, J., Yang, S., Wang, H., Wu, C.-J., Sugimoto, H., LeBleu, V. S., & Kalluri, R.
Affiliations
The University of Texas MD Anderson Cancer Center (US)
Corresponding author
Kalluri, Raghu
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2021-04
Volume
39
Issue
4
Pages
548-565.e6
ISSN
1535-6108 (ISSN-L)
OpenAlex
W3133734054
Cited by
566
References
100
Citations by year
2026: 91 · 2025: 112 · 2024: 111 · 2023: 101 · 2022: 99 · 2021: 49 · 2020: 2
FWCI
32.79
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • North Dakota State University
  • Cancer Prevention and Research Institute of Texas (RP150231, P01CA117969)
  • University of Texas MD Anderson Cancer Center
  • National Cancer Institute (P30CA16672)
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Oncology › Cancer Immunotherapy and Biomarkers
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
Keywords
type I collagen, myofibroblasts, alpha-smooth muscle actin, pancreatic ductal adenocarcinoma, tumor immunosuppression, T cells, CXCR2, CCR2, tumor stroma, tumor progression
MeSH terms
Animals, Disease Models, Animal, Pancreatic Neoplasms, CD8-Positive T-Lymphocytes, Carcinoma, Pancreatic Ductal, Collagen Type I, Cell Line, Tumor, Mice, Myofibroblasts, Pancreatic Stellate Cells, Tumor Microenvironment

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review