Evidence map›Paper›PMID 21575859›Full record

ArticleCancer cell2011

Reciprocal feedback regulation of PI3K and androgen receptor signaling in PTEN-deficient prostate cancer.

Brett S Carver, Caren Chapinski, John Wongvipat, Haley Hieronymus, Yu Chen, Sarat Chandarlapaty, Vivek K Arora, Carl Le, Jason Koutcher, Howard Scher and 3 more

Open access · bronzeAbstract read
In one paragraph

Article in Cancer cell, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 753 papers.

0numbers the graph read from it
0cells of the map it votes in
753citing papers in PubMed
44.3field-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

753 citing papers in PubMed, 1,179 citations in OpenAlex.

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  6. Phase Ib/II Study of Enzalutamide with Samotolisib (LY3023414) or Placebo in Patients with Metastatic Castration-Resistant Prostate Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2022
    Trial
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  8. Circulating and Intratumoral Adrenal Androgens Correlate with Response to Abiraterone in Men with Castration-Resistant Prostate Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2021
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  9. Review
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  15. Metabolic convergence of diabetes and prostate cancer: from dysglycemia to tumor microenvironment reprogramming.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
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  19. Network Pharmacology and Molecular Docking ofInternational journal of molecular sciences · 2026
    Article
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693 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

13 authors at 2 institutions in 1 country.

Brett S CarverHuman Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
Caren Chapinski
John Wongvipat
Haley Hieronymus
Yu Chen
Sarat Chandarlapaty
Vivek K Arora
Carl Le
Jason Koutcher
Howard Scher
Peter T Scardino
Neal Rosen
Charles L Sawyers
Memorial Sloan Kettering Cancer Center · USHoward Hughes Medical Institute · US

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
SPORE In Prostate CancerP50CA092629 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Yu Chen, MICHAEL J MORRIS · 2001 to 2026
$63.0M
Memorial Sloan Kettering Small Animal Imaging ResearchR24CA083084 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI KOUTCHER, JASON ARTHUR · 1999 to 2006
$4.4M
Understanding the roles of TMPRSS2 and ERG in pathogenesis of prostate cancer.K08CA140946 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI CHEN, YU · 2009 to 2013
$796k
Biologic and therapeutic implications of Akt activation in Her2+ breast cancerK08CA134833 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI CHANDARLAPATY, SARAT · 2009 to 2013
$726k
Howard Hughes Medical InstituteNCI NIH HHS K08 CA134833NCI NIH HHS K08 CA140946NCI NIH HHS P30 CA008748NCI NIH HHS P30 CA08748NCI NIH HHS P50 CA092629NCI NIH HHS P50-CA92629NCI NIH HHS R24 CA083084NCI NIH HHS R24 CA83084
6 · The paper itself

Abstract

Prostate cancer is characterized by its dependence on androgen receptor (AR) and frequent activation of PI3K signaling. We find that AR transcriptional output is decreased in human and murine tumors with PTEN deletion and that PI3K pathway inhibition activates AR signaling by relieving feedback inhibition of HER kinases. Similarly, AR inhibition activates AKT signaling by reducing levels of the AKT phosphatase PHLPP. Thus, these two oncogenic pathways cross-regulate each other by reciprocal feedback. Inhibition of one activates the other, thereby maintaining tumor cell survival. However, combined pharmacologic inhibition of PI3K and AR signaling caused near-complete prostate cancer regressions in a Pten-deficient murine prostate cancer model and in human prostate cancer xenografts, indicating that both pathways coordinately support survival.

Indexed as

Signal TransductionAndrogen AntagonistsAnimalsAntineoplastic Combined Chemotherapy ProtocolsCell Line, TumorCell ProliferationErb-b2 Receptor Tyrosine KinasesFeedback, PhysiologicalGene Expression Regulation, NeoplasticGenes, ReporterHumansMagnetic Resonance ImagingMaleMiceMice, KnockoutMice, SCIDAndrogen AntagonistsAR protein, humanErb-b2 Receptor Tyrosine KinasesMyc protein, mouseNuclear ProteinsPHLPP1 protein, humanPhosphatidylinositol 3-KinasePhosphoinositide-3 Kinase InhibitorsPhosphoprotein PhosphatasesProtein Kinase InhibitorsProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-mycPTEN PhosphohydrolasePTEN protein, humanPten protein, mouseReceptor, ErbB-3Receptors, Androgen

Identifiers

PMID21575859
PMCPMC3142785
OpenAlexW2073100248

What OpenQuestion holds

Textmetadata
LicenceTDM
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.