Evidence map›Paper›PMID 21926469›Full record

ArticleThe Journal of clinical investigation2011

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

Hideaki Ijichi, Anna Chytil, Agnieszka E Gorska, Mary E Aakre, Brian Bierie, Motohisa Tada, Dai Mohri, Koji Miyabayashi, Yoshinari Asaoka, Shin Maeda and 6 more

Abstract read
In one paragraph

Article in The Journal of clinical investigation, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 161 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
161citing papers in PubMed, 1 pooled it
9.8field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

161 citing papers in PubMed, 1 synthesis or guideline pooled it, 255 citations in OpenAlex.

  1. Pooled it
  2. Leveraging Microphysiological Systems to Facilitate Neutrophil-Based Cancer Immunotherapy.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Review
  3. Article
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  5. Article
  6. The Significance of CXCL1 in Cancer: An Overview of Molecular Mechanisms.International journal of molecular sciences · 2026
    Review
  7. Article
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  11. Article
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101 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 5 institutions in 2 countries.

Hideaki IjichiDepartment of Gastroenterology, Graduate School of Medicine, University of Tokyo, Tokyo, Japan. hideijichi-gi@umin.ac.jp
Anna Chytil
Agnieszka E Gorska
Mary E Aakre
Brian Bierie
Motohisa Tada
Dai Mohri
Koji Miyabayashi
Yoshinari Asaoka
Shin Maeda
Tsuneo Ikenoue
Keisuke Tateishi
Christopher V E Wright
Kazuhiko Koike
Masao Omata
Harold L Moses
The University of Tokyo · JPVanderbilt University · USTokyo Medical University · JPWhitehead Institute for Biomedical Research · USYokohama City University · JP

Funding

TGF BETA SUPPRESSION AND PROMOTION OF MAMMARY CARCINOMASR01CA085492 · NCI · VANDERBILT UNIVERSITY · PI MOSES, HAROLD L, WEAVER, VALERIE MARIE · 2000 to 2015
$6.4M
TGF-beta in Mammary Development and TumorigenesisR01CA102162 · NCI · VANDERBILT UNIVERSITY · PI MOSES, HAROLD L · 2003 to 2013
$4.5M
NCI NIH HHS CA085492NCI NIH HHS CA102162NCI NIH HHS R01 CA085492NCI NIH HHS R01 CA102162PHS HHS U54126505
6 · The paper itself

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.

Indexed as

AnimalsCarcinoma, Pancreatic DuctalChemokines, CXCConnective Tissue Growth FactorFemaleGene ExpressionHumansMiceMice, Inbred C57BLMice, KnockoutMice, NudePancreatic NeoplasmsProtein Serine-Threonine KinasesProto-Oncogene Proteins p21(ras)Receptors, Interleukin-8BReceptors, Transforming Growth Factor betaCCN2 protein, mouseChemokines, CXCConnective Tissue Growth FactorHras protein, mouseProtein Serine-Threonine KinasesProto-Oncogene Proteins p21(ras)Receptors, Interleukin-8BReceptors, Transforming Growth Factor betaReceptor, Transforming Growth Factor-beta Type II

Identifiers

PMID21926469
PMCPMC3195452
OpenAlexW2014434319

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.