Evidence map›Paper›PMID 28981098›Full record

ArticleCell death & disease2017

AP4 modulated by the PI3K/AKT pathway promotes prostate cancer proliferation and metastasis of prostate cancer via upregulating L-plastin.

Changhao Chen, Qingqing Cai, Wang He, Thomas B Lam, Jianxun Lin, Yue Zhao, Xu Chen, Peng Gu, Hao Huang, Miaoxin Xue and 5 more

Open access · goldAbstract read
In one paragraph

Article in Cell death & disease, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.9field-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

32 citing papers in PubMed, 51 citations in OpenAlex.

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  10. Reversal of Lactate and PD-1-mediated Macrophage Immunosuppression Controls Growth of PTEN/p53-deficient Prostate Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2023
    Article
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  12. Consistent DNA Hypomethylations in Prostate Cancer.International journal of molecular sciences · 2022
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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

15 authors at 4 institutions in 3 countries.

Changhao ChenDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Qingqing CaiGuangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangdong, China.
Wang HeDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Thomas B LamDepartment of Internal Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China.
Jianxun LinDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Yue ZhaoAcademic Urology Unit, University of Aberdeen, Cornhill Road, Aberdeen, UK.
Xu ChenDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Peng GuDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Hao HuangDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Miaoxin XueDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Hao LiuDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Feng SuDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Jian HuangDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Jianping ZhengDepartment of Tumor Intervention, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.
Tianxin LinDepartment of Urology, Sun Yat-sen Memorial Hospital, Guangzhou, China.
Sun Yat-sen Memorial Hospital · CNSun Yat-sen University · CNThe First Affiliated Hospital, Sun Yat-sen University · CNUniversity of Aberdeen · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The transition from androgen-dependent to metastatic castration-resistant prostate cancer (PCa) is a lethal event of uncertain molecular aetiology. Our previous studies demonstrated that L-plastin is involved in PCa invasion and metastasis and is upregulated by androgen and oestrogen in the hormone-dependent PCa cell line LNCaP. We recently found that L-plastin expression is consistently activated even after androgen deprivation, suggesting that androgen-independent transcription factors may regulate its expression. Herein, we performed sequential deletion and luciferase analysis of the L-plastin promoter and found that an androgen-independent regulatory factor prominently located in the region close to the transcription initiation site (-216 to +118) may facilitate L-plastin upregulation. AP4 was then identified as the relevant transcription activator that directly binds to the L-plastin promoter, as confirmed by EMSAs, supershift assays and CHIP-qPCR experiments. Moreover, we determined that the AP4/L-plastin axis is regulated by the phosphatidylinositol 3-kinase (PI3K)/AKT pathway, contributing to PCa metastasis and castration resistance. Furthermore, we found that AP4 promotes PCa metastasis by upregulating L-plastin expression in vitro and in vivo. We collected a total of 136 PCa tissues and corresponding adjacent normal tissues from patients who underwent prostatectomy at Sun Yat-Sen Memorial Hospital from 2005 to 2015 and measured AP4 and L-plastin protein levels by immunohistochemistry. The results showed that AP4 levels strongly correlated with those of its downstream target gene L-plastin, were significantly upregulated in PCa tissues, were positively correlated with lymph node metastasis and Gleason scores over 7, and were an independent prognostic factor for patient survival. In summary, these findings support a plausible mechanism by which the AP4/L-plastin axis is regulated by the PI3K/AKT pathway in human PCa and may represent a novel therapeutic target in PCa treatment.

Indexed as

AgedBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsCell Line, TumorCell ProliferationDNA-Binding ProteinsGene Expression Regulation, NeoplasticHumansMaleMicrofilament ProteinsMiddle AgedNeoplasm MetastasisPhosphatidylinositol 3-KinasePromoter Regions, GeneticProstatic NeoplasmsProto-Oncogene Proteins c-aktRNA-Binding ProteinsBasic Helix-Loop-Helix Leucine Zipper Transcription FactorsDNA-Binding ProteinsLCP1 protein, humanMicrofilament ProteinsPhosphatidylinositol 3-KinaseProto-Oncogene Proteins c-aktREPIN1 protein, humanRNA-Binding Proteins

Identifiers

PMID28981098
PMCPMC5680569
OpenAlexW2764033835

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.