Evidence map›Paper›PMID 27326255›Full record

ArticleJournal of Cancer2016

Vasculogenic Mimicry in Prostate Cancer: The Roles of EphA2 and PI3K.

Hua Wang, Hao Lin, Jincheng Pan, Chengqiang Mo, Faming Zhang, Bin Huang, Zongren Wang, Xu Chen, Jintao Zhuang, Daohu Wang and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of Cancer, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 1 pooled it
4.9field-weighted citation impact, top 4% 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

43 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Sp1 Plays a Key Role in Vasculogenic Mimicry of Human Prostate Cancer Cells.International journal of molecular sciences · 2022
    Article
  18. Histochemical Staining of Vasculogenic Mimicry.Methods in molecular biology (Clifton, N.J.) · 2022
    Review
  19. Article
  20. Article
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

11 authors at 2 institutions in 1 country.

Hua WangDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Hao LinDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Jincheng PanDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Chengqiang MoDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Faming ZhangDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Bin HuangDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Zongren WangDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Xu ChenDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Jintao ZhuangDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Daohu WangDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
Shaopeng QiuDepartment of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China.
The First Affiliated Hospital, Sun Yat-sen University · CNSun Yat-sen University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAggressive tumor cells can form perfusable networks that mimic normal vasculature and enhance tumor growth and metastasis. A number of molecular players have been implicated in such vasculogenic mimicry, among them the receptor tyrosine kinase EphA2, which is aberrantly expressed in aggressive tumors. Here we study the role and regulation of EphA2 in vasculogenic mimicry in prostate cancer where this phenomenon is still poorly understood.

methodsVasculogenic mimicry was characterized by tubules whose cellular lining was negative for the endothelial cell marker CD34 but positive for periodic acid-Schiff staining, and/or contained red blood cells. Vasculogenic mimicry was assessed in 92 clinical samples of prostate cancer and analyzed in more detail in three prostate cancer cell lines kept in three-dimensional culture. Tissue samples and cell lines were also assessed for total and phosphorylated levels of EphA2 and its potential regulator, Phosphoinositide 3-Kinase (PI3K). In addition, the role of EphA2 in vasculogenic mimicry and in cell migration and invasion were investigated by manipulating the levels of EphA2 through specific siRNAs. Furthermore, the role of PI3K in vasculogenic mimicry and in regulating EphA2 was tested by application of an inhibitor, LY294002.

resultsImmunohistochemistry of prostate cancers showed a significant correlation between vasculogenic mimicry and high expression levels of EphA2, high Gleason scores, advanced TNM stage, and the presence of lymph node and distant metastases. Likewise, two prostate cancer cell lines (PC3 and DU-145) formed vasculogenic networks on Matrigel and expressed high EphA2 levels, while one line (LNCaP) showed no vasculogenic networks and lower EphA2 levels. Specific silencing of EphA2 in PC3 and DU-145 cells decreased vasculogenic mimicry as well as cell migration and invasion. Furthermore, high expression levels of PI3K and EphA2 phosphorylation at Ser897 significantly correlated with the presence of vasculogenic mimicry and in vitro inhibition of PI3K by LY294002 disrupted vasculogenic mimicry, potentially through a reduction of EphA2 phosphorylation at Ser897.

conclusionsThe expression levels of PI3K and EphA2 are positively correlated with vasculogenic mimicry both in vivo and in vitro. Moreover, phosphorylation levels of EphA2 regulated by PI3K are also significantly associated with vasculogenic mimicry in vivo. Based on its functional implication in vasculogenic mimicry in vitro, EphA2 signaling may be a potential therapeutic target in advanced prostate cancer.

Indexed as

EphA2PI3K.Prostate cancerVasculogenic mimicry

Identifiers

PMID27326255
PMCPMC4911879
OpenAlexW2437047832

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.