Evidence map›Paper›PMID 26436951›Full record

ArticleOncogenesis2015

PIK3CA mutations can initiate pancreatic tumorigenesis and are targetable with PI3K inhibitors.

S N Payne, M E Maher, N H Tran, D R Van De Hey, T M Foley, A E Yueh, A A Leystra, C A Pasch, J J Jeffrey, L Clipson and 2 more

Open access · goldAbstract read
In one paragraph

Article in Oncogenesis, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
2.6field-weighted citation impact, top 8% 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

60 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
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  6. Loss of PIK3CA allowsbioRxiv : the preprint server for biology · 2026
    Article
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  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
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  17. MRTX1133's promise for treating KRASJournal of gastrointestinal oncology · 2024
    Article
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  20. Review
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

12 authors at 2 institutions in 1 country.

S N PayneUniversity of Wisconsin Carbone Cancer Center, Madison, WI, USA.
M E MaherDivision of Hematology and Oncology, Department of Medicine, University of Wisconsin, Madison, WI, USA.
N H TranDivision of Hematology and Oncology, Department of Medicine, University of Wisconsin, Madison, WI, USA.
D R Van De HeyDivision of Hematology and Oncology, Department of Medicine, University of Wisconsin, Madison, WI, USA.
T M FoleyDivision of Hematology and Oncology, Department of Medicine, University of Wisconsin, Madison, WI, USA.
A E YuehDivision of Hematology and Oncology, Department of Medicine, University of Wisconsin, Madison, WI, USA.
A A LeystraDepartment of Oncology, University of Wisconsin, Madison, WI, USA.
C A PaschUniversity of Wisconsin Carbone Cancer Center, Madison, WI, USA.
J J JeffreyUniversity of Wisconsin Carbone Cancer Center, Madison, WI, USA.
L ClipsonDepartment of Oncology, University of Wisconsin, Madison, WI, USA.
K A MatkowskyjUniversity of Wisconsin Carbone Cancer Center, Madison, WI, USA.
D A DemingUniversity of Wisconsin Carbone Cancer Center, Madison, WI, USA.
University of Wisconsin–Madison · USUniversity of Wisconsin Carbone Cancer Center · US

Funding

UW COMPREHENSIVE CANCER CENTER SUPPORTP30CA014520 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI AMY TRENTHAM-DIETZ · 1985 to 2026
$142.6M
NCI NIH HHS P30 CA014520
6 · The paper itself

Abstract

Aberrations in the phosphoinositide 3-kinase (PI3K) signaling pathway have a key role in the pathogenesis of numerous cancers by altering cell growth, metabolism, proliferation and apoptosis. Interest in targeting the PI3K signaling cascade continues, as new agents are being clinically evaluated. PIK3CA mutations result in a constitutively active PI3K and are present in a subset of pancreatic cancers. Here we examine mutant PIK3CA-mediated pancreatic tumorigenesis and the response of PIK3CA mutant pancreatic cancers to dual PI3K/mammalian target of rapamycin (mTOR) inhibition. Two murine models were generated expressing a constitutively active PI3K within the pancreas. An increase in acinar-to-ductal metaplasia and pancreatic intraepithelial neoplasms (PanINs) was identified. In one model these lesions were detected as early as 10 days of age. Invasive pancreatic ductal adenocarcinoma developed in these mice as early as 20 days of age. These cancers were highly sensitive to treatment with dual PI3K/mTOR inhibition. In the second model, PanINs and invasive cancer develop with a greater latency owing to a lesser degree of PI3K pathway activation in this murine model. In addition to PI3K pathway activation, increased ERK1/2 signaling is common in human pancreatic cancers. Phosphorylation of ERK1/2 was also investigated in these models. Phosphorylation of ERK1/2 is demonstrated in the pre-neoplastic lesions and invasive cancers. This activation of ERK1/2 is diminished with dual PI3K/mTOR inhibition. In summary, PIK3CA mutations can initiate pancreatic tumorigenesis and these cancers are particularly sensitive to dual PI3K/mTOR inhibition. Future studies of PI3K pathway inhibitors for patients with PIK3CA mutant pancreatic cancers are warranted.

Identifiers

PMID26436951
PMCPMC4632089
OpenAlexW2237359059

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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.