Evidence map›Paper›PMID 23902739›Full record

ArticleMolecular cancer2013

PTEN loss mediated Akt activation promotes prostate tumor growth and metastasis via CXCL12/CXCR4 signaling.

M Katie Conley-LaComb, Allen Saliganan, Pridvi Kandagatla, Yong Q Chen, Michael L Cher, Sreenivasa R Chinni

Open access · goldAbstract read
In one paragraph

Article in Molecular cancer, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 89 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
89citing papers in PubMed, 3 pooled it
6.7field-weighted citation impact, top 2% 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

89 citing papers in PubMed, 3 syntheses or guidelines pooled it, 147 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Cancer-associated fibroblasts contribute to cancer metastasis and apoptosis resistance in human ovarian cancer via paracrine SDF-1α.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2023
    Article
  20. Article

29 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

6 authors at 2 institutions in 1 country.

M Katie Conley-LaCombDepartment of Urology, Wayne State University School of Medicine, 9245 Scott Hall 540 E, Canfield Avenue, Detroit, MI 48201, USA.
Allen Saliganan
Pridvi Kandagatla
Yong Q Chen
Michael L Cher
Sreenivasa R Chinni
Wayne State University · USWake Forest University · US

Funding

Tumor Biology and Microenvironment (Program 1)P30CA022453 · NCI · WAYNE STATE UNIVERSITY · PI PAUL M STEMMER · 1985 to 2026
$68.4M
Enhancing neoadjuvant chemotherpay responses with targeted T cellsR01CA140314 · NCI · WAYNE STATE UNIVERSITY · PI BEPLER, GEROLD · 2010 to 2015
$2.5M
Novel ERG regulation of CXCR4 in prostate cancer progressionR01CA151557 · NCI · WAYNE STATE UNIVERSITY · PI CHINNI, SREENIVASA R · 2010 to 2014
$1.3M
NCI NIH HHS CA151557NCI NIH HHS P30 CA22453NCI NIH HHS R01 CA140314NCI NIH HHS R01 CA151557NCI NIH HHS R01CA151557
6 · The paper itself

Abstract

introductionThe chemokine CXCL12, also known as SDF-1, and its receptor, CXCR4, are overexpressed in prostate cancers and in animal models of prostate-specific PTEN deletion, but their regulation is poorly understood. Loss of the tumor suppressor PTEN (phosphatase and tensin homolog) is frequently observed in cancer, resulting in the deregulation of cell survival, growth, and proliferation. We hypothesize that loss of PTEN and subsequent activation of Akt, frequent occurrences in prostate cancer, regulate the CXCL12/CXCR4 signaling axis in tumor growth and bone metastasis.

methodsMurine prostate epithelial cells from PTEN+/+, PTEN+/-, and PTEN-/- (prostate specific knockdown) mice as well as human prostate cancer cell lines C4-2B, PC3, and DU145 were used in gene expression and invasion studies with Akt inhibition. Additionally, HA-tagged Akt1 was overexpressed in DU145, and tumor growth in subcutaneous and intra-tibia bone metastasis models were analyzed.

resultsLoss of PTEN resulted in increased expression of CXCR4 and CXCL12 and Akt inhibition reversed expression and cellular invasion. These results suggest that loss of PTEN may play a key role in the regulation of this chemokine activity in prostate cancer. Overexpression of Akt1 in DU145 resulted in increased CXCR4 expression, as well as increased proliferation and cell cycle progression. Subcutaneous injection of these cells also resulted in increased tumor growth as compared to neo controls. Akt1 overexpression reversed the osteosclerotic phenotype associated with DU145 cells to an osteolytic phenotype and enhanced intra-osseous tumor growth.

conclusionsThese results suggest the basis for activation of CXCL12 signaling through CXCR4 in prostate cancer driven by the loss of PTEN and subsequent activation of Akt. Akt1-associated CXCL12/CXCR4 signaling promotes tumor growth, suggesting that Akt inhibitors may potentially be employed as anticancer agents to target expansion of PC bone metastases.

Indexed as

AnimalsCell Line, TumorChemokine CXCL12HumansMaleMiceMice, KnockoutProstatic NeoplasmsProto-Oncogene Proteins c-aktPTEN PhosphohydrolaseReceptors, CXCR4Signal TransductionChemokine CXCL12Proto-Oncogene Proteins c-aktPTEN PhosphohydrolasePTEN protein, humanPten protein, mouseReceptors, CXCR4

Identifiers

PMID23902739
PMCPMC3751767
OpenAlexW2162211821

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.