Evidence map›Paper›PMID 22952425›Full record

ArticleNeoplasia (New York, N.Y.)2012

3-phosphoinositide-dependent kinase 1 controls breast tumor growth in a kinase-dependent but Akt-independent manner.

Paolo Armando Gagliardi, Laura di Blasio, Francesca Orso, Giorgio Seano, Roberto Sessa, Daniela Taverna, Federico Bussolino, Luca Primo

Open access · goldAbstract read
In one paragraph

Article in Neoplasia (New York, N.Y.), 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

48 citing papers in PubMed, 64 citations in OpenAlex.

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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

8 authors at 3 institutions in 1 country.

Paolo Armando GagliardiInstitute for Cancer Research and Treatment, Candiolo, Italy.
Laura di Blasio
Francesca Orso
Giorgio Seano
Roberto Sessa
Daniela Taverna
Federico Bussolino
Luca Primo
University of Turin · ITCandiolo Cancer Institute · ITInstitute for Complex Systems · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

3-phosphoinositide-dependent protein kinase 1 (PDK1) is the pivotal element of the phosphatidylinositol 3 kinase (PI3K) signaling pathway because it phosphorylates Akt/PKB through interactions with phosphatidylinositol 3,4,5 phosphate. Recent data indicate that PDK1 is overexpressed in many breast carcinomas and that alterations of PDK1 are critical in the context of oncogenic PI3K activation. However, the role of PDK1 in tumor progression is still controversial. Here, we show that PDK1 is required for anchorage-independent and xenograft growth of breast cancer cells harboring either PI3KCA or KRAS mutations. In fact, PDK1 silencing leads to increased anoikis, reduced soft agar growth, and pronounced apoptosis inside tumors. Interestingly, these phenotypes are reverted by PDK1 wild-type but not kinase-dead mutant, suggesting a relevant role of PDK1 kinase activity, even if PDK1 is not relevant for Akt activation here. Indeed, the expression of constitutively active forms of Akt in PDK1 knockdown cells is unable to rescue the anchorage-independent growth. In addition, Akt down-regulation and pharmacological inhibition do not inhibit the effects of PDK1 overexpression. In summary, these results suggest that PDK1 may contribute to breast cancer, even in the absence of PI3K oncogenic mutations and through both Akt-dependent and Akt-independent mechanisms.

Indexed as

3-Phosphoinositide-Dependent Protein KinasesAnimalsAnoikisBreast NeoplasmsCell ProliferationCell SurvivalChromonesFemaleHumansMiceMice, NudeMorpholinesMutationNuclear ProteinsPhosphatidylinositol 3-KinasePhosphoinositide-3 Kinase Inhibitors2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one3-Phosphoinositide-Dependent Protein KinasesChromonesKRAS protein, humanMorpholinesNuclear ProteinsOSU 03012PDPK1 protein, humanPdpk1 protein, mousePhosphatidylinositol 3-KinasePhosphoinositide-3 Kinase InhibitorsPI3KCA protein, humanProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-aktProto-Oncogene Proteins p21(ras)Pyrazolesras ProteinsRNA, Small InterferingSulfonamidesTranscription Factors

Identifiers

PMID22952425
PMCPMC3431179
OpenAlexW1817416866

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.