Evidence map›Paper›PMID 26447830›Full record

ArticleThe Prostate2016

GSTP1 Loss results in accumulation of oxidative DNA base damage and promotes prostate cancer cell survival following exposure to protracted oxidative stress.

Omar Y Mian, Mohamed H Khattab, Mohammad Hedayati, Jonathan Coulter, Budri Abubaker-Sharif, Julie M Schwaninger, Ravi K Veeraswamy, James D Brooks, Lisa Hopkins, Debika Biswal Shinohara and 4 more

Open access · greenAbstract read
In one paragraph

Article in The Prostate, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 14% 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
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  8. Absence of GSTT1 and polymorphisms in GSTP1 and TP53 are associated with the incidence of acne vulgaris.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2023
    Article
  9. Chemopreventive Activity of Ellagitannins fromPlants (Basel, Switzerland) · 2023
    Article
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  16. GSTP1 as a novel target in radiation induced lung injury.Journal of translational medicine · 2021
    Review
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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

14 authors at 8 institutions in 1 country.

Omar Y MianDepartment of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Mohamed H KhattabSchool of Medicine, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Mohammad HedayatiDepartment of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Jonathan CoulterDepartment of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Budri Abubaker-SharifDepartment of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Julie M SchwaningerNational Institute of Allergies and Infectious Diseases/NIH, Bethesda, Maryland.
Ravi K VeeraswamyDepartment of Vascular Surgery, Emory University, Atlanta, Georgia.
James D BrooksDepartment of Urology, Stanford University, Palo Alto, California.
Lisa HopkinsSt. Peters University Hospital Breast Center in New Brunswick, New Jersey.
Debika Biswal ShinoharaDepartment of Oncology, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Brian CornblattNuramax Laboratories, Edgewood, Maryland.
William G NelsonDepartment of Oncology, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Srinivasan YegnasubramanianSchool of Medicine, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Theodore L DeWeeseDepartment of Radiation Oncology and Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins Hospital, Baltimore, Maryland.
Johns Hopkins Hospital · USSidney Kimmel Comprehensive Cancer Center · USEmory University · USJohns Hopkins University · USNational Institute of Allergy and Infectious Diseases · USNutramax Laboratories (United States) · USPalo Alto University · USSaint Peter's University Hospital · US

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI WILLIAM George NELSON · 1985 to 2026
$208.6M
TRANSGENIC MODELS FOR PROSTATE CANCER AND AUTOIMMUNITYP50CA058236 · NCI · JOHNS HOPKINS UNIVERSITY · PI DENMEADE, SAMUEL R · 1992 to 2020
$43.9M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM007309 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI COX, ANDREA L · 1985 to 2019
$43.2M
Medical Scientist Training ProgramT32GM136577 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI ANDREA L COX · 2020 to 2026
$13.4M
Role of TOP2B in generating complex genomic rearrangements in human cancerR01CA183965 · NCI · JOHNS HOPKINS UNIVERSITY · PI WHEELAN, SARAH J, YEGNASUBRAMANIAN, SRINIVASAN · 2014 to 2018
$1.7M
NCI NIH HHS P30 CA006973NCI NIH HHS P30CA006973NCI NIH HHS P50 CA058236NCI NIH HHS P50CA058236NCI NIH HHS R01 CA183965NCI NIH HHS R01CA183965NIGMS NIH HHS T32 GM007309NIGMS NIH HHS T32 GM136577
6 · The paper itself

Abstract

backgroundEpigenetic silencing of glutathione S-transferase π (GSTP1) is a hallmark of transformation from normal prostatic epithelium to adenocarcinoma of the prostate. The functional significance of this loss is incompletely understood. The present study explores the effects of restored GSTP1 expression on glutathione levels, accumulation of oxidative DNA damage, and prostate cancer cell survival following oxidative stress induced by protracted, low dose rate ionizing radiation (LDR).

methodsGSTP1 protein expression was stably restored in LNCaP prostate cancer cells. The effect of GSTP1 restoration on protracted LDR-induced oxidative DNA damage was measured by GC-MS quantitation of modified bases. Reduced and oxidized glutathione levels were measured in control and GSTP1 expressing populations. Clonogenic survival studies of GSTP1- transfected LNCaP cells after exposure to protracted LDR were performed. Global gene expression profiling and pathway analysis were performed.

resultsGSTP1 expressing cells accumulated less oxidized DNA base damage and exhibited decreased survival compared to control LNCaP-Neo cells following oxidative injury induced by protracted LDR. Restoration of GSTP1 expression resulted in changes in modified glutathione levels that correlated with GSTP1 protein levels in response to protracted LDR-induced oxidative stress. Survival differences were not attributable to depletion of cellular glutathione stores. Gene expression profiling and pathway analysis following GSTP1 restoration suggests this protein plays a key role in regulating prostate cancer cell survival.

conclusionsThe ubiquitous epigenetic silencing of GSTP1 in prostate cancer results in enhanced survival and accumulation of potentially promutagenic DNA adducts following exposure of cells to protracted oxidative injury suggesting a protective, anti-neoplastic function of GSTP1. The present work provides mechanistic backing to the tumor suppressor function of GSTP1 and its role in prostate carcinogenesis.

Indexed as

Cell Line, TumorCell SurvivalDNA DamageGlutathione S-Transferase piHumansMaleOxidative StressProstatic NeoplasmsGlutathione S-Transferase piGSTP1 protein, humancancerGSTP1oxidative stressprostate

Identifiers

PMID26447830
PMCPMC4734373
OpenAlexW1946677549

What OpenQuestion holds

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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.