Evidence map›Paper›PMID 21148071›Full record

ArticleCancer research2011

Three-dimensional collagen I promotes gemcitabine resistance in pancreatic cancer through MT1-MMP-mediated expression of HMGA2.

Surabhi Dangi-Garimella, Seth B Krantz, Morgan R Barron, Mario A Shields, Michael J Heiferman, Paul J Grippo, David J Bentrem, Hidayatullah G Munshi

Open access · bronzeAbstract read
In one paragraph

Article in Cancer research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

101 citing papers in PubMed, 179 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. The Duality of Collagens in Metastases of Solid Tumors.International journal of molecular sciences · 2025
    Review
  5. Sequential drug release system: Targeting the tumor ECM for enhanced chemotherapy efficacy.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  6. Novel De NovoInternational journal of molecular sciences · 2025
    Article
  7. Pancreatic cancer-derived extracellular vesicles enhance chemoresistance by delivering KRASMolecular therapy : the journal of the American Society of Gene Therapy · 2025
    Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Review
  13. Review
  14. Article
  15. Review
  16. Review
  17. Review
  18. Article
  19. Review
  20. A new era: tumor microenvironment in chemoresistance of pancreatic cancer.Journal of cancer science and clinical therapeutics · 2022
    Article

41 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Surabhi Dangi-GarimellaDivision of Hematology/Oncology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois 60611, USA. s-dangi-garimella@northwestern.edu
Seth B Krantz
Morgan R Barron
Mario A Shields
Michael J Heiferman
Paul J Grippo
David J Bentrem
Hidayatullah G Munshi
Jesse Brown VA Medical Center · USRobert H. Lurie Comprehensive Cancer Center of Northwestern UniversityNorthwestern University · US

Funding

MULTIDISCIPLINARY CLINICAL AND TRANSLATIONAL SCIENCE (MCTS) PROGRAM (UL1)UL1RR025741 · NCRR · NORTHWESTERN UNIVERSITY AT CHICAGO · PI GREENLAND, PHILIP · 2008 to 2011
$24.7M
Fibrosis-Protease Cross-Talk Regulating Pancreatic Cancer InvasionR01CA126888 · NCI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI MUNSHI, HIDAYATULLAH G. · 2008 to 2013
$1.4M
NCI NIH HHS R01 CA126888NCI NIH HHS R01CA126888NCRR NIH HHS UL1 RR025741
6 · The paper itself

Abstract

One of the hallmarks of human pancreatic ductal adenocarcinoma (PDAC) is its pronounced type I collagen-rich fibrotic reaction. Although recent reports have shown that the fibrotic reaction can limit the efficacy of gemcitabine chemotherapy, the underlying mechanisms remain poorly understood. In this article, we show that the type I collagen allows PDAC cells to override checkpoint arrest induced by gemcitabine. Relative to cells grown on tissue culture plastic, PDAC cells grown in 3-dimensional collagen microenvironment have minimal Chk1 phosphorylation and continue to proliferate in the presence of gemcitabine. Collagen increases membrane type 1 matrix metalloproteinase (MT1-MMP)-dependent ERK1/2 phosphorylation to limit the effect of gemcitabine. Collagen also increases MT1-MMP-dependent high mobility group A2 (HMGA2) expression, a nonhistone DNA-binding nuclear protein involved in chromatin remodeling and gene transcription, to attenuate the effect of gemcitabine. Overexpression of MT1-MMP in the collagen microenvironment increases ERK1/2 phosphorylation and HMGA2 expression, and thereby further attenuates gemcitabine-induced checkpoint arrest. MT1-MMP also allows PDAC cells to continue to proliferate in the presence of gemcitabine in a xenograft mouse model. Clinically, human tumors with increased MT1-MMP show increased HMGA2 expression. Overall, our data show that collagen upregulation of MT1-MMP contributes to gemcitabine resistance in vitro and in a xenograft mouse model, and suggest that targeting MT1-MMP could be a novel approach to sensitize pancreatic tumors to gemcitabine.

Indexed as

AnimalsAntimetabolites, AntineoplasticCarcinoma, Pancreatic DuctalCell Growth ProcessesCell Line, TumorCollagen Type IDeoxycytidineDrug Resistance, NeoplasmDrug SynergismExtracellular MatrixGemcitabineHMGA2 ProteinHumansMatrix Metalloproteinase 14MiceMice, NudeAntimetabolites, AntineoplasticCollagen Type IDeoxycytidineGemcitabineHMGA2 ProteinMatrix Metalloproteinase 14Mitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3MMP14 protein, humanRNA, Small Interfering

Identifiers

PMID21148071
PMCPMC3076124
OpenAlexW2099598957

What OpenQuestion holds

Textmetadata
LicenceTDM
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.