Evidence map›Paper›PMID 28024726›Full record

ArticleOral oncology2017

Defining the boundaries and expanding the utility of head and neck cancer patient derived xenografts.

Adam D Swick, Andrew P Stein, Timothy M McCulloch, Gregory K Hartig, Irene M Ong, Emmanuel Sampene, Prashanth J Prabakaran, Cheng Z Liu, Randall J Kimple

Abstract read
In one paragraph

Article in Oral oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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

23 citing papers in PubMed.

  1. Pretreatment Chromosomal Instability Correlates With Radiation Sensitivity in Squamous Cell Cancers.International journal of radiation oncology, biology, physics · 2026
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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

9 authors.

Adam D SwickDepartment of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Andrew P SteinDepartment of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Timothy M McCullochDepartment of Otolaryngology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Gregory K HartigDepartment of Otolaryngology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Irene M OngDepartment of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Emmanuel SampeneDepartment of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Prashanth J PrabakaranDepartment of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Cheng Z LiuDepartment of Pathology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA.
Randall J KimpleDepartment of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA; University of Wisconsin Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA. Electronic address: rkimple@humonc.wisc.edu.

Funding

UW COMPREHENSIVE CANCER CENTER SUPPORTP30CA014520 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI AMY TRENTHAM-DIETZ · 1985 to 2026
$142.6M
Institutional Clinical and Translational Science AwardUL1TR000427 · NCATS · UNIVERSITY OF WISCONSIN-MADISON · PI DREZNER, MARC KENNETH · 2012 to 2016
$32.2M
Head and Neck squamous cell carcinoma radiation response modulation by HPVR00CA160639 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI KIMPLE, RANDALL J. · 2013 to 2015
$725k
NCATS NIH HHS UL1 TR000427NCI NIH HHS P30 CA014520NCI NIH HHS R00 CA160639
6 · The paper itself

Abstract

backgroundPatient derived xenografts (PDXs) represent an essential tool in oncologic research, and we sought to further expand our repertoire of head and neck squamous cell carcinoma (HNSCC) while determining potential boundaries for this system.

methodsWe consented new patients for PDX development and determined if a 24-h time delay from tumor excision to xenograft implantation affected PDX establishment. We developed a tissue microarray (TMA) from formalin fixed, paraffin embedded PDXs and their subsequent passages and carried out quantitative immunohistochemistry for EGFR, pEGFR, pAkt, pERK and ERCC1. First and last passaged PDXs were compared via a paired t-test to examine for the stability of protein expression across passages. We performed a similar comparison of the mutational profile of the patient tumor and resulting xenografts using a targeted sequencing approach.

resultsNo patient/tumor characteristics influenced PDX take rate and the 24-h time delay from tumor excision to xenograft implantation did not affect PDX establishment, growth or histology. There was no significant difference in biomarker expression between the first and last passaged PDXs for EGFR, pEGFR, pAkt, and ERCC1. For pERK there was a significant difference (p=0.002), but further analysis demonstrated this only arose in three of 15 PDXs. Targeted sequencing revealed striking stability of passenger and likely driver mutations from patient to xenograft.

conclusionsThe stability of protein expression across PDX passages will hopefully allow greater investigation of predictive biomarkers in order to identify ones for further pre-clinical and clinical investigation.

Indexed as

Xenograft Model Antitumor AssaysAnimalsFemaleHead and Neck NeoplasmsHumansMiceMice, Inbred NODMice, SCIDMutationHead and neck cancerHNSCCMouse modelPatient derived xenograftPDX

Identifiers

PMID28024726
PMCPMC5218527

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Registered trials

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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.