Evidence map›Paper›PMID 25700986›Full record

ArticleThe American journal of pathology2015

DNA methyl transferase 1 reduces expression of SRD5A2 in the aging adult prostate.

Rongbin Ge, Zongwei Wang, Seth K Bechis, Alexander G Otsetov, Shengyu Hua, Shulin Wu, Chin-Lee Wu, Shahin Tabatabaei, Aria F Olumi

Registry-linked trialAbstract read
In one paragraph

Article in The American journal of pathology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04288427 (5-Alpha Reductase 2 as a Marker of Resistance to 5ARI Therapy), which is not on this map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
–field-weighted citation impact
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.

NCT04288427 narecruitingnot on this mapstarted 2020, after this paper: background citation

5-Alpha Reductase 2 as a Marker of Resistance to 5ARI Therapy

TypeinterventionalSponsorBeth Israel Deaconess Medical CenterRan2020 to 2026Enrolled120ConditionsBenign Prostatic Hyperplasia, Prostate Hyperplasia, Prostate Disease, Prostate HypertrophyArmsFinasteride
3 · Its place in the literature

Who cites it

23 citing papers in PubMed.

  1. Trial
  2. Review
  3. Review
  4. Review
  5. Article
  6. Ectonucleotidases and purinergic receptors in mouse prostate gland.American journal of clinical and experimental urology · 2025
    Article
  7. Enhanced prostatic Esr1The Journal of pathology · 2024
    Article
  8. Review
  9. Article
  10. Review
  11. Observational
  12. Review
  13. Article
  14. Article
  15. DNA methylation in development and disease: an overview for prostate researchers.American journal of clinical and experimental urology · 2018
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Rongbin GeDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Zongwei WangDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Seth K BechisDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Alexander G OtsetovDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Shengyu HuaDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Department of Pathology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Shulin WuDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Chin-Lee WuDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts; Tianjin University of Traditional Chinese Medicine, Tianjin, China.
Shahin TabatabaeiDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts.
Aria F OlumiDepartment of Urology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts. Electronic address: olumi.aria@mgh.harvard.edu.

Funding

Reduced Levels of 5-alpha Reductase 2 in Adult Prostate Tissue: Implications forR01DK091353 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI OLUMI, ARIA F · 2011 to 2015
$1.9M
NIDDK NIH HHS R01 DK091353
6 · The paper itself

Abstract

5-α Reductase type 2 (SRD5A2) is a critical enzyme for prostatic development and growth. Inhibition of SRD5A2 by finasteride is used commonly for the management of urinary obstruction caused by benign prostatic hyperplasia. Contrary to common belief, we have found that expression of SRD5A2 is variable and absent in one third of benign adult prostates. In human samples, absent SRD5A2 expression is associated with hypermethylation of the SRD5A2 promoter, and in vitro SRD5A2 promoter activity is suppressed by methylation. We show that methylation of SRD5A2 is regulated by DNA methyltransferase 1, and inflammatory mediators such as tumor necrosis factor α, NF-κB, and IL-6 regulate DNA methyltransferase 1 expression and thereby affect SRD5A2 promoter methylation and gene expression. Furthermore, we show that increasing age in mice and humans is associated with increased methylation of the SRD5A2 promoter and concomitantly decreased protein expression. Artificial induction of inflammation in prostate primary epithelial cells leads to hypermethylation of the SRD5A2 promoter and silencing of SRD5A2, whereas inhibition with tumor necrosis factor α inhibitor reactivates SRD5A2 expression. Therefore, expression of SRD5A2 is not static and ubiquitous in benign adult prostate tissues. Methylation and expression of SRD5A2 may be used as a gene signature to tailor therapies for more effective treatment of prostatic diseases.

Indexed as

3-Oxo-5-alpha-Steroid 4-DehydrogenaseAgedAged, 80 and overAgingAnimalsCell Line, TumorDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesDNA MethylationHumansMaleMembrane ProteinsMiceMiddle AgedPromoter Regions, GeneticProstate3-Oxo-5-alpha-Steroid 4-DehydrogenaseDNA (Cytosine-5-)-Methyltransferase 1DNA (Cytosine-5-)-MethyltransferasesMembrane ProteinsSRD5A2 protein, human

Identifiers

PMID25700986
PMCPMC4348471

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Registered trials

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.