Evidence map›Paper›PMID 31352310›Full record

ArticleBiomaterials2019

Hyaluronic acid-functionalized gelatin hydrogels reveal extracellular matrix signals temper the efficacy of erlotinib against patient-derived glioblastoma specimens.

Sara Pedron, Gabrielle L Wolter, Jee-Wei E Chen, Sarah E Laken, Jann N Sarkaria, Brendan A C Harley

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.9field-weighted citation impact, top 6% 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

38 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Article
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  4. Article
  5. Article
  6. Hydrogel Microdroplet Based Glioblastoma Drug Screening Platform.Journal of biomedical materials research. Part A · 2026
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Hydrogel microdroplet based glioblastoma drug screening platform.bioRxiv : the preprint server for biology · 2025
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
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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

6 authors at 2 institutions in 1 country.

Sara PedronCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL, USA.
Gabrielle L WolterCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL, USA.
Jee-Wei E ChenCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL, USA.
Sarah E LakenCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL, USA.
Jann N SarkariaDepartment of Radiation Oncology, Mayo Clinic, Rochester, MN, USA.
Brendan A C HarleyCarl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, IL, USA; Dept. of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, IL, USA. Electronic address: bharley@illinois.edu.
University of Illinois Urbana-Champaign · USMayo Clinic in Arizona · US

Funding

Gradient Biomaterials to Investigate Niche Regulation of HematopoiesisR01DK099528 · NIDDK · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI Brendan A. Harley · 2014 to 2026
$4.0M
Biomimetic Hydrogel Niches to Study the Malignant Phenotype of Glioblastoma MultiformeR01CA197488 · NCI · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI HARLEY, BRENDAN A. · 2016 to 2020
$2.2M
Tissue microenvironment (TIMe) training programT32EB019944 · NIBIB · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI BHARGAVA, ROHIT, GASKINS, REX · 2016 to 2025
$1.9M
NCI NIH HHS R01 CA197488NIBIB NIH HHS T32 EB019944NIDDK NIH HHS R01 DK099528
6 · The paper itself

Abstract

Therapeutic options to treat primary glioblastoma (GBM) tumors are scarce. GBM tumors with epidermal growth factor receptor (EGFR) mutations, in particular a constitutively active EGFRvIII mutant, have extremely poor clinical outcomes. GBM tumors with concurrent EGFR amplification and active phosphatase and tensin homolog (PTEN) are sensitive to the tyrosine kinase inhibitor erlotinib, but the effect is not durable. A persistent challenge to improved treatment is the poorly understood role of cellular, metabolic, and biophysical signals from the GBM tumor microenvironment on therapeutic efficacy and acquired resistance. The intractable nature of studying GBM cell in vivo motivates tissue engineering approaches to replicate aspects of the complex GBM tumor microenvironment. Here, we profile the effect of erlotinib on two patient-derived GBM specimens: EGFR + GBM12 and EGFRvIII GBM6. We use a three-dimensional gelatin hydrogel to present brain-mimetic hyaluronic acid (HA) and evaluate the coordinated influence of extracellular matrix signals and EGFR mutation status on GBM cell migration, survival and proliferation, as well as signaling pathway activation in response to cyclic erlotinib exposure. Comparable to results observed in vivo for xenograft tumors, erlotinib exposure is not cytotoxic for GBM6 EGFRvIII specimens. We also identify a role of extracellular HA (via CD44) in altering the effect of erlotinib in GBM EGFR + cells by modifying STAT3 phosphorylation status. Taken together, we report an in vitro tissue engineered platform to monitor signaling associated with poor response to targeted inhibitors in GBM.

Indexed as

AnimalsBrain NeoplasmsCell Line, TumorCell MovementCell ProliferationCell SurvivalErbB ReceptorsErlotinib HydrochlorideExtracellular MatrixGelatinGlioblastomaHumansHyaluronan ReceptorsHyaluronic AcidHydrogelsMiceepidermal growth factor receptor VIIIErbB ReceptorsErlotinib HydrochlorideGelatinHyaluronan ReceptorsHyaluronic AcidHydrogelsReceptor, Platelet-Derived Growth Factor betaSTAT3 Transcription FactorDrug resistanceGlioblastoma in vitro modelHyaluronic acidHydrogelTumor microenvironment

Identifiers

PMID31352310
PMCPMC6707069
OpenAlexW2963533631

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.