Evidence map›Paper›PMID 15831234›Full record

ArticleNeuro-oncology2005

Patient tumor EGFR and PDGFRA gene amplifications retained in an invasive intracranial xenograft model of glioblastoma multiforme.

Caterina Giannini, Jann N Sarkaria, Atsushi Saito, Joon H Uhm, Evanthia Galanis, Brett L Carlson, Mark A Schroeder, C David James

Abstract read
In one paragraph

Article in Neuro-oncology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 223 papers.

0numbers the graph read from it
0cells of the map it votes in
223citing papers in PubMed
6.8field-weighted citation impact, top 3% 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

223 citing papers in PubMed, 323 citations in OpenAlex.

  1. Trial
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  4. Article
  5. A clinically relevant model and method to study necrosis as a driving force in glioma restructuring and progression.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  9. Biomaterial-basedCancer pathogenesis and therapy · 2023
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  15. Review
  16. Brain organoids: Establishment and application.Frontiers in cell and developmental biology · 2022
    Review
  17. Tumor Cell IDO Enhances Immune Suppression and Decreases Survival Independent of Tryptophan Metabolism in Glioblastoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2021
    Article
  18. Article
  19. Article
  20. Revisiting Platinum-Based Anticancer Drugs to Overcome Gliomas.International journal of molecular sciences · 2021
    Review

163 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 2 institutions in 1 country.

Caterina GianniniDepartments of Laboratory Medicine and Pathology, Mayo Clinic and Foundation, 200 First Street SW, Rochester, MN 55905, USA.
Jann N Sarkaria
Atsushi Saito
Joon H Uhm
Evanthia Galanis
Brett L Carlson
Mark A Schroeder
C David James
Mayo Clinic · USMayo Clinic in Arizona · US

Funding

Targeted MV-CEA as a Potent Antitumor Agent against GBMP50CA108961 · NCI · MAYO CLINIC ROCHESTER · PI BUCKNER, JAN C · 2004 to 2015
$22.5M
Xenograft Model for Studying Amplified EGFR in GBMR01NS049720 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JAMES, CHARLES DAVID · 2004 to 2008
$1.5M
Epidermal growth factor receptor signaling in gliomaK08NS042682 · NINDS · MAYO CLINIC ROCHESTER · PI UHM, JOON H · 2002 to 2006
$796k
CARCINOGENIC PYRIMIDINES AT A MODEL REPLICATION FORKR01CA085779 · NCI · LOMA LINDA UNIVERSITY · PI SOWERS, LAWRENCE C · 2000 to 2002
$672k
ATM KINASE AS A NOVEL TARGET FOR RADIOSENSITIZING AGENTSK08CA080829 · NCI · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI SARKARIA, JANN N · 1999 to 2003
$502k
NCI NIH HHS CA 108961NCI NIH HHS CA 85779NCI NIH HHS K08 CA 80829NCI NIH HHS P50 CA108961NINDS NIH HHS K08 NS042682NINDS NIH HHS K08 NS 42682NINDS NIH HHS NS 49720NINDS NIH HHS R01 NS049720
6 · The paper itself

Abstract

We have previously described a panel of serially transplantable glioblastoma multiforme xenograft lines established by direct subcutaneous injection of patient tumor tissue in the flanks of nude mice. Here we report the characterization of four of these lines with respect to their histopathologic, genetic, and growth properties following heterotopic-to-orthotopic (flank-to-intracranial) transfer. Cells from short-term cultures, established from excised flank xenografts, were harvested and injected into the brains of nude mice (10(6) cells per injection). The intracranial tumors generated from these injections were all highly mitotic as well as highly invasive, but they lacked necrotic features in most instances and failed to show endothelial cell proliferation in all instances. For mice receiving injections from a common explant culture, tumor intracranial growth rate was consistent, as indicated by relatively narrow ranges in survival time. In contrast to the loss of epidermal growth factor receptor gene (EGFR) amplification in cell culture, high-level amplification and overexpression of EGFR were retained in intracranial tumors established from two EGFR-amplified flank tumors. A third intracranial tumor retained patient tumor amplification and high-level expression of platelet-derived growth factor receptor alpha gene. Because the heterotopic-to-orthotopic transfer and propagation of glioblastoma multiforme preserves the receptor tyrosine kinase (RTK) gene amplification of patient tumors, this approach should facilitate investigations for determining the extent to which RTK amplification status influences tumor response to RTK-directed therapies. The fact that such studies were carried out by using an invasive tumor model in an anatomically appropriate context should ensure a rigorous preclinical assessment of agent efficacy.

Indexed as

Gene AmplificationGenes, erbB-1AgedAnimalsBlotting, SouthernBrain NeoplasmsDisease Models, AnimalGlioblastomaHumansImmunohistochemistryIn Situ Hybridization, FluorescenceMaleMiceMiddle AgedNeoplasm TransplantationPlatelet-Derived Growth FactorPlatelet-Derived Growth Factorplatelet-derived growth factor A

Identifiers

PMID15831234
PMCPMC1871885
OpenAlexW2048043668

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.