Cited by 256Pancreatic and Hepatic Oncology ResearchChemokine receptors and signalingConnective Tissue Growth Factor Research

Inhibiting Cxcr2 disrupts tumor-stromal interactions and improves survival in a mouse model of pancreatic ductal adenocarcinoma

Open access
Ijichi, Hideaki, Chytil, Anna, Gorska, Agnieszka E., Aakre, Mary E., Bierie, Brian, Tada, Motohisa, Mohri, Dai, Miyabayashi, Koji +8 more·2011·Journal of Clinical Investigation

Abstract

Pancreatic ductal adenocarcinoma (PDAC), one of the most lethal neoplasms, is characterized by an expanded stroma with marked fibrosis (desmoplasia). We previously generated pancreas epithelium-specific TGF-β receptor type II (Tgfbr2) knockout mice in the context of Kras activation (mice referred to herein as Kras+Tgfbr2KO mice) and found that they developed aggressive PDAC that recapitulated the histological manifestations of the human disease. The mouse PDAC tissue showed strong expression of connective tissue growth factor (Ctgf), a profibrotic and tumor-promoting factor, especially in the tumor-stromal border area, suggesting an active tumor-stromal interaction. Here we show that the PDAC cells in Kras+Tgfbr2KO mice secreted much higher levels of several Cxc chemokines compared with mouse pancreatic intraepithelial neoplasia cells, which are preinvasive. The Cxc chemokines induced Ctgf expression in the pancreatic stromal fibroblasts, not in the PDAC cells themselves. Subcutaneous grafting studies revealed that the fibroblasts enhanced growth of PDAC cell allografts, which was attenuated by Cxcr2 inhibition. Moreover, treating the Kras+Tgfbr2KO mice with the CXCR2 inhibitor reduced tumor progression. The decreased tumor progression correlated with reduced Ctgf expression and angiogenesis and increased overall survival. Taken together, our data indicate that tumor-stromal interactions via a Cxcr2-dependent chemokine and Ctgf axis can regulate PDAC progression. Further, our results suggest that inhibiting tumor-stromal interactions might be a promising therapeutic strategy for PDAC.

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 · 10.1172/jci42754

Cites

50 of 50 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?

  • Data from various mouse models indicate that disrupting the CXCR1/2-MDSC axis is therapeutically efficacious across a wide variety of solid cancers.

    “Notably, data from various mouse models indicate that disrupting the CXCR1/2–MDSC axis in tumours is therapeutically efficacious across a wide variety of solid cancers166–172.”
  • The relevance of targeting the CXCL1/2-S100A8/9 axis may extend beyond breast cancer.

    “Moreover, the important role of CXCR2 in pancreatic adenocarcinoma models (Ijichi et al., 2011) and of S100A8/9 in colorectal cancer (Ichikawa et al., 2011) suggest that the relevance of targeting the CXCL1/2–S100A8/9 axis may extend beyond breast cancer.”

    From A CXCL1 Paracrine Network Links Cancer Chemoresistance and Metastasis (2012) · cites this paper as Ijichi et al., 2011

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
Ijichi, H., Chytil, A., Gorska, A. E., Aakre, M. E., Bierie, B., Tada, M., Mohri, D., Miyabayashi, K., Asaoka, Y., Maeda, S., Ikenoue, T., Tateishi, K., Wright, C. V. E., Koike, K., Omata, M., & Moses, H. L.
Affiliations
  • The University of Tokyo (JP)
  • Vanderbilt University (US)
  • Whitehead Institute for Biomedical Research (US)
  • Chiba University (JP)
  • Yokohama City University (JP)
  • Institute of Medical Science, The University of Tokyo (JP)
  • Yamanashi Prefectural Central Hospital (JP)
Corresponding author
Ijichi, Hideaki
Venue
Journal of Clinical Investigation
Published
2011-10-03
Volume
121
Issue
10
Pages
4106-4117
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2014434319
Cited by
256
References
50
Citations by year
2026: 9 · 2025: 8 · 2024: 8 · 2023: 9 · 2022: 13 · 2021: 31 · 2020: 19 · 2019: 17 · 2018: 7 · 2017: 20 · 2016: 20 · 2015: 20 · 2014: 22 · 2013: 27 · 2012: 24
FWCI
11.65
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (submittedVersion, cc-by-nc-nd)
Funders
  • Vanderbilt University
  • Ministry of Education, Culture, Sports, Science and Technology
  • Foundation for Promotion of Cancer Research
  • National Institutes of Health
  • U.S. Public Health Service (U54126505)
  • Japan Society for the Promotion of Science (23591011, 22501004)
  • National Cancer Institute (CA 085492, R01CA085492, CA102162, R01CA102162)
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Health Sciences › Medicine › Oncology › Chemokine receptors and signaling
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Connective Tissue Growth Factor Research
Keywords
pancreatic ductal adenocarcinoma, tumor-stroma interactions, connective tissue growth factor, CXCR2, CXCL chemokines, desmoplasia, TGFBR2, tumor angiogenesis, tumor growth, overall survival, pancreatic intraepithelial neoplasia
MeSH terms
Receptor, Transforming Growth Factor-beta Type II, Animals, Female, Humans, Mice, Inbred C57BL, Mice, Nude, Pancreatic Neoplasms, Signal Transduction, Gene Expression, Proto-Oncogene Proteins p21(ras), Stromal Cells, Protein Serine-Threonine Kinases, Receptors, Transforming Growth Factor beta, Mice, Knockout, Chemokines, CXC, Carcinoma, Pancreatic Ductal, Receptors, Interleukin-8B, Mice, Connective Tissue Growth Factor, 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