Cited by 2,085Pancreatic and Hepatic Oncology ResearchHedgehog Signaling Pathway StudiesCancer, Lipids, and Metabolism

Stromal Elements Act to Restrain, Rather Than Support, Pancreatic Ductal Adenocarcinoma

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Rhim, Andrew D., Oberstein, Paul E., Thomas, Dafydd H., Mirek, Emily T., Palermo, Carmine F., Sastra, Stephen A., Dekleva, Erin N., Saunders, Tyler +9 more·2014·Cancer Cell

Abstract

Sonic hedgehog (Shh), a soluble ligand overexpressed by neoplastic cells in pancreatic ductal adenocarcinoma (PDAC), drives formation of a fibroblast-rich desmoplastic stroma. To better understand its role in malignant progression, we deleted Shh in a well-defined mouse model of PDAC. As predicted, Shh-deficient tumors had reduced stromal content. Surprisingly, such tumors were more aggressive and exhibited undifferentiated histology, increased vascularity, and heightened proliferation--features that were fully recapitulated in control mice treated with a Smoothened inhibitor. Furthermore, administration of VEGFR blocking antibody selectively improved survival of Shh-deficient tumors, indicating that Hedgehog-driven stroma suppresses tumor growth in part by restraining tumor angiogenesis. Together, these data demonstrate that some components of the tumor stroma can act to restrain tumor growth.

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Crossref · 10.1016/j.ccr.2014.04.021

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  • Subsequent preclinical studies that suppressed the Hedgehog-responsive CAF subset long term demonstrated more rapid PDAC progression.

    “subsequent preclinical studies that suppressed in the long term the CAF subset known to be Hedgehog responsive also demonstrated more rapid PDAC progression35,36.”

    From A framework for advancing our understanding of cancer-associated fibroblasts (2020) · cites this paper as [35]

    The Results sections “Chronic smoothened inhibition phenocopies Shh deletion” and “Shh loss accelerates PDAC progression” report that sustained Hedgehog-pathway inhibition or Shh deletion accelerated progression in mouse PDAC models. The paper also identifies Hedgehog-responsive myofibroblasts, but it did not selectively suppress a CAF subset: it inhibited the pathway or deleted the epithelial ligand, and found that other stromal cells responded too. Page numbers are not provided in our copy. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Preclinical studies suggest that non-specific targeting or deletion of stromal fibroblasts may not enhance tumour control.

    “preclinical studies suggesting that the non-specific targeting or deletion of stromal fibroblasts may not enhance tumour control35,36.”

    From A framework for advancing our understanding of cancer-associated fibroblasts (2020) · cites this paper as [35]

    The Discussion reports that deleting Sonic hedgehog or inhibiting Smoothened reduced pancreatic tumour stroma but accelerated progression and mortality, supporting the caution that stromal targeting may not improve tumour control. The Results report fewer myofibroblasts after Shh deletion, but the study did not directly delete stromal fibroblasts; it disrupted signalling that promotes their presence. Our copy provides section labels but no page numbers for these passages. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • High infiltration of M2 macrophages in tumor tissues is associated with poor clinical prognosis.

    “Furthermore, high infiltration of M2 macrophages in tumor tissues is associated with poor clinical prognosis.[ 28 ]”

    From 3D Biomimetic Models to Reconstitute Tumor Microenvironment In Vitro: Spheroids, Organoids, and Tumor‐on‐a‐Chip (2023) · cites this paper as [28]

    The Results section on stromal composition reports fewer F4/80+ monocytes in the more aggressive Shh-deficient mouse tumors, but does not identify M2 macrophages or assess their association with clinical prognosis. A search for M2 macrophage infiltration and patient outcomes found no passage addressing that claim. Page numbers were not available in our copy. (LLM, conf=0.76)

    Experimental — accuracy not yet measured
  • Preclinical work proposed that systemic therapy would work better if it could penetrate the dense fibrosis and high interstitial pressure generated by CAFs in pancreatic tumors.

    “One notable example of an ultimately unsuccessful but informative clinical paradigm came by way of a series of pre-clinical studies proposing the efficacy of systemic therapy would improve through efforts to penetrate the dense fibrosis and high interstitial pressure promoted by the CAFs in pancreatic tumors140,158.”

    From Pancreatic cancer: Advances and challenges (2023) · cites this paper as [158]

  • CAF depletion reduces infiltrating immune cells, leading to tumor progression.

    “However, CAF depletion has also been shown to reduce infiltrating immune cells, leading to tumor progression [100].”

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Authors
Rhim, A. D., Oberstein, P. E., Thomas, D. H., Mirek, E. T., Palermo, C. F., Sastra, S. A., Dekleva, E. N., Saunders, T., Becerra, C. P., Tattersall, I. W., Westphalen, C. B., Kitajewski, J., Fernandez-Barrena, M. G., Fernandez-Zapico, M. E., Iacobuzio-Donahue, C., Olive, K. P., & Stanger, B. Z.
Affiliations
  • University of Michigan (US)
  • Columbia University Irving Medical Center (US)
  • University of Pennsylvania (US)
  • Johns Hopkins University (US)
Corresponding author
  • Olive, Kenneth P.
  • Stanger, Ben Z.
Venue
Cancer Cell
Publisher
Elsevier BV
Published
2014-06
Volume
25
Issue
6
Pages
735-747
ISSN
1535-6108 (ISSN-L)
OpenAlex
W1996912024
Cited by
2,085
References
41
Citations by year
2026: 158 · 2025: 131 · 2024: 149 · 2023: 169 · 2022: 226 · 2021: 225 · 2020: 200 · 2019: 157 · 2018: 162 · 2017: 161 · 2016: 179 · 2015: 122 · 2014: 45
FWCI
81.22
Type
journal article
Language
en
Open access
Locations
  • Cancer Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Heart, Lung, and Blood Institute (R01HL112626)
  • National Cancer Institute (CA177857, CA 136526, CA169123, R01CA157980, CA046952, CA157980, R01CA177857, R01CA169123, R01CA136526, T32CA009503, P30CA015083, P30CA013696, P30CA016520)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P30DK034933, DK 034933, DP2DK083111, K08DK088945, DK088945, DK083111, R01DK083355, DK083355, P30DK084567, P30DK050306)
  • National Center for Research Resources (S10RR025686, S10RR025482)
Topics
  • Health Sciences › Medicine › Oncology › Pancreatic and Hepatic Oncology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Hedgehog Signaling Pathway Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Lipids, and Metabolism
Keywords
pancreatic ductal adenocarcinoma, Sonic hedgehog, Hedgehog signaling, tumor stroma, desmoplasia, Smoothened inhibitors, tumor angiogenesis, tumor vascularity, tumor cell proliferation, tumor differentiation
MeSH terms
Animals, Antibodies, Monoclonal, Disease Models, Animal, Humans, Immunoglobulin G, Mice, Transgenic, Pancreatic Neoplasms, Random Allocation, Signal Transduction, Stromal Cells, Disease Progression, Carcinoma, Pancreatic Ductal, Receptors, Vascular Endothelial Growth Factor, Cell Line, Tumor, Mice, Hedgehog Proteins, Gene Knockdown Techniques

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