Evidence map›Paper›PMID 22217540›Full record

ArticleMolecular oncology2012

The interaction of PKN3 with RhoC promotes malignant growth.

Keziban Unsal-Kacmaz, Shoba Ragunathan, Edward Rosfjord, Stephen Dann, Erik Upeslacis, Mary Grillo, Richard Hernandez, Fiona Mack, Anke Klippel

Open access · bronzeAbstract read
In one paragraph

Article in Molecular oncology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

29 citing papers in PubMed, 49 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

9 authors at 1 institution in 1 country.

Keziban Unsal-KacmazOncology Research Unit, Pfizer Oncology, Pfizer Worldwide Research and Development, Pearl River, NY 10965, USA. Keziban.Unsal-Kacmaz@Pfizer.com
Shoba Ragunathan
Edward Rosfjord
Stephen Dann
Erik Upeslacis
Mary Grillo
Richard Hernandez
Fiona Mack
Anke Klippel
Pfizer (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PKN3 is an AGC-family protein kinase implicated in growth of metastatic prostate cancer cells with phosphoinositide 3-kinase pathway deregulation. The molecular mechanism, however, by which PKN3 contributes to malignant growth and tumorigenesis is not well understood. Using orthotopic mouse tumor models, we now show that inducible knockdown of PKN3 protein not only blocks metastasis, but also impairs primary prostate and breast tumor growth. Correspondingly, overexpression of exogenous PKN3 in breast cancer cells further increases their malignant behavior and invasiveness in-vitro. Mechanistically, we demonstrate that PKN3 physically interacts with Rho-family GTPases, and preferentially with RhoC, a known mediator of tumor invasion and metastasis in epithelial cancers. Likewise, RhoC predominantly associates with PKN3 compared to its closely related PKN family members. Unlike the majority of Rho GTPases and PKN molecules, which are ubiquitously expressed, both PKN3 and RhoC show limited expression in normal tissues and become upregulated in late-stage malignancies. Since PKN3 catalytic activity is increased in the presence of Rho GTPases, the co-expression and preferential interaction of PKN3 and RhoC in tumor cells are functionally relevant. Our findings provide novel insight into the regulation and function of PKN3 and suggest that the PKN3-RhoC complex represents an attractive therapeutic target in late-stage malignancies.

Indexed as

AnimalsBreast NeoplasmsCell Line, TumorCell NucleusDoxycyclineFluorescent Antibody TechniqueImmunoprecipitationMaleMiceNeoplasm MetastasisProstatic NeoplasmsProtein BindingProtein Kinase Cras ProteinsrhoC GTP-Binding ProteinRNA, Small InterferingDoxycyclineProtein Kinase Cprotein kinase Nras ProteinsrhoC GTP-Binding ProteinRhoc protein, mouseRNA, Small Interfering

Identifiers

PMID22217540
PMCPMC5528337
OpenAlexW2052833073

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.