Evidence map›Paper›PMID 22065749›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2011

Genomic dissection of the epidermal growth factor receptor (EGFR)/PI3K pathway reveals frequent deletion of the EGFR phosphatase PTPRS in head and neck cancers.

Luc G T Morris, Barry S Taylor, Trever G Bivona, Yongxing Gong, Stephanie Eng, Cameron W Brennan, Andrew Kaufman, Edward R Kastenhuber, Victoria E Banuchi, Bhuvanesh Singh and 6 more

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed, 2 pooled it
10.7field-weighted citation impact, top 1% 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

52 citing papers in PubMed, 2 syntheses or guidelines pooled it, 103 citations in OpenAlex.

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  8. [Research progress on the mechanisms of resistance to cetuximab targeted therapy in head and neck squamous cell carcinoma].Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology head and neck surgery · 2025
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  9. International journal of molecular sciences · 2025
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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

16 authors at 3 institutions in 1 country.

Luc G T MorrisHuman Oncology and Pathogenesis Program, Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
Barry S Taylor
Trever G Bivona
Yongxing Gong
Stephanie Eng
Cameron W Brennan
Andrew Kaufman
Edward R Kastenhuber
Victoria E Banuchi
Bhuvanesh Singh
Adriana Heguy
Agnes Viale
Ingo K Mellinghoff
Jason Huse
Ian Ganly
Timothy A Chan
Memorial Sloan Kettering Cancer Center · USNeurology, Inc · USRadiation Oncology Associates · US

Funding

HEAD AND NECK TRAINING PROGRAM SURGICAL ONCOLOGYT32CA009685 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI FAGIN, JAMES A, WONG, RICHARD J · 1992 to 2022
$3.6M
Elucidating the function of the widely inactivated phosphatase PTPRD in the molecR01CA154767 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI CHAN, TIMOTHY AN-THY · 2011 to 2015
$1.9M
NCI NIH HHS R01 CA154767NCI NIH HHS T32 CA009685
6 · The paper itself

Abstract

Activation of the PI3K and epidermal growth factor receptor (EGFR) pathway is able to drive oncogenesis in multiple human cancers, including head and neck squamous cell carcinoma. Targeted agents such as cetuximab and erlotinib are currently used in patients with head and neck squamous cell carcinoma, but, in this disease, the genomic alterations that cause pathway activation and determine response to pharmacologic inhibition remain ill-defined. Here, we present a detailed dissection of the EGFR/PI3K pathway, composed of sequencing of the core pathway components, and high-resolution genomic copy number assessment. Mutations were found in PIK3CA (6%), but no point mutations were observed in other pathway genes such as PTEN and EGFR. In contrast, we observed frequent copy number alterations of genes in the pathway, including PIK3CA, EGFR, protein tyrosine phosphatase receptor S (PTPRS), and RICTOR. In total, activating genetic pathway alterations were identified in 74% of head and neck tumors. Importantly, intragenic microdeletions of the EGFR phosphatase PTPRS were frequent (26%), identifying this gene as a target of 19p13 loss. PTPRS loss promoted EGFR/PI3K pathway activation, modulated resistance to EGFR inhibition, and strongly determined survival in lung cancer patients with activating EGFR mutations. These findings have important implications for our understanding of head and neck cancer tumorigenesis and for the use of targeted agents for this malignancy.

Indexed as

Chromosome AberrationsBlotting, WesternCarcinoma, Squamous CellChromosomes, Human, Pair 19Comparative Genomic HybridizationComputational BiologyDNA Copy Number VariationsErbB ReceptorsGene Knockdown TechniquesHead and Neck NeoplasmsHumansMutationPhosphatidylinositol 3-KinasesPolymerase Chain ReactionReceptor-Like Protein Tyrosine Phosphatases, Class 2RNA InterferenceErbB ReceptorsPhosphatidylinositol 3-KinasesPTPRS protein, humanReceptor-Like Protein Tyrosine Phosphatases, Class 2

Identifiers

PMID22065749
PMCPMC3223475
OpenAlexW2079701251

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.