Evidence map›Paper›PMID 20713702›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2010

Cancer-derived mutations in the regulatory subunit p85alpha of phosphoinositide 3-kinase function through the catalytic subunit p110alpha.

Minghao Sun, Petra Hillmann, Bianca T Hofmann, Jonathan R Hart, Peter K Vogt

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
88citing papers in PubMed, 1 pooled it
5.5field-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

88 citing papers in PubMed, 1 synthesis or guideline pooled it, 156 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Cancer-AssociatedInternational journal of medical sciences · 2025
    Review
  4. Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Review
  14. Review
  15. Review
  16. Class I PI3K Biology.Current topics in microbiology and immunology · 2022
    Article
  17. Article
  18. Somatic PIK3R1 variation as a cause of vascular malformations and overgrowth.Genetics in medicine : official journal of the American College of Medical Genetics · 2021
    Article
  19. Cancer-associated mutations in the p85α N-terminal SH2 domain activate a spectrum of receptor tyrosine kinases.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  20. Drugging multiple same-allele driver mutations in cancer.Expert opinion on drug discovery · 2021
    Article

28 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

5 authors at 1 institution in 1 country.

Minghao SunDepartment of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
Petra Hillmann
Bianca T Hofmann
Jonathan R Hart
Peter K Vogt
Scripps Research Institute · US

Funding

Small Molecules and Targeted Gene Delivery in Tumor AngiogenesisP01CA078045 · NCI · SCRIPPS RESEARCH INSTITUTE, THE · PI VOGT, PETER K · 1998 to 2008
$10.2M
P3K, RETROVIRAL ONCOGENE AND HOMOLOG OF PI 3-KINASER01CA078230 · NCI · SCRIPPS RESEARCH INSTITUTE, THE · PI VOGT, PETER K · 1998 to 2013
$5.6M
NCI NIH HHS P01 CA078045NCI NIH HHS R01 CA078230
6 · The paper itself

Abstract

Cancer-specific mutations in the iSH2 (inter-SH2) and nSH2 (N-terminal SH2) domains of p85alpha, the regulatory subunit of phosphatidylinositide 3-kinase (PI3K), show gain of function. They induce oncogenic cellular transformation, stimulate cellular proliferation, and enhance PI3K signaling. Quantitative determinations of oncogenic activity reveal large differences between individual mutants of p85alpha. The mutant proteins are still able to bind to the catalytic subunits p110alpha and p110beta. Studies with isoform-specific inhibitors of p110 suggest that expression of p85 mutants in fibroblasts leads exclusively to an activation of p110alpha, and p110alpha is the sole mediator of p85 mutant-induced oncogenic transformation. The characteristics of the p85 mutants are in agreement with the hypothesis that the mutations weaken an inhibitory interaction between p85alpha and p110alpha while preserving the stabilizing interaction between p85alpha iSH2 and the adapter-binding domain of p110alpha.

Indexed as

MutationAdenineAmino Acid SequenceAnimalsBase SequenceBlotting, WesternCatalytic DomainCell LineCell ProliferationCells, CulturedCell Transformation, NeoplasticChick EmbryoClass I Phosphatidylinositol 3-KinasesDioxolesFibroblastsHumans5-(2,2-difluorobenzo(1,3)dioxol-5-ylmethylene)thiazolidine-2,4-dioneAdenineClass I Phosphatidylinositol 3-KinasesDioxolesIC 87114MorpholinesPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsPIK3CB protein, humanProtein SubunitsPyrimidinonesQuinazolinesTGX 221Thiazolidinediones

Identifiers

PMID20713702
PMCPMC2932613
OpenAlexW2054958296

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.