Evidence map›Paper›PMID 34485908›Full record

ArticleNeuro-oncology advances

Histone deacetylase inhibitors enhance estrogen receptor beta expression and augment agonist-mediated tumor suppression in glioblastoma.

Uday P Pratap, Gangadhara R Sareddy, Zexuan Liu, Prabhakar Pitta Venkata, Junhao Liu, Weiwei Tang, Kristin A Altwegg, Behnam Ebrahimi, Xiaonan Li, Rajeshwar R Tekmal and 4 more

Open access · goldAbstract read
In one paragraph

Article in Neuro-oncology advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

12 citing papers in PubMed, 18 citations in OpenAlex.

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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 4 institutions in 2 countries.

Uday P PratapDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.ORCID https://orcid.org/0000-0003-2973-0210
Gangadhara R SareddyDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Zexuan LiuDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Prabhakar Pitta VenkataDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Junhao LiuDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Weiwei TangDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Kristin A AltweggDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Behnam EbrahimiDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Xiaonan LiDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Rajeshwar R TekmalDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Suryavathi ViswanadhapalliDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Stanton McHardyDepartment of Chemistry, University of Texas San Antonio, San Antonio, Texas, USA.
Andrew J BrennerHematology & Oncology, University of Texas Health San Antonio, San Antonio, Texas, USA.
Ratna K VadlamudiDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, Texas, USA.
The University of Texas Health Science Center at San Antonio · USCentral South University · CNNanjing University of Chinese Medicine · CNThe University of Texas at San Antonio · US

Funding

TISSUE CULTURE---COREP30CA054174 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Robin Jean Leach · 1991 to 2026
$59.1M
Therapeutic agents targeting nuclear receptor signaling in distinct molecular subtypes of breast cancerR01CA223828 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI RAJ, GANESH V, VADLAMUDI, RATNA K · 2018 to 2022
$3.0M
FoXM1 inhibition: a novel therapeutic avenue to treat breast cancersR01CA239227 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI RAO, MANJEET KUMAR, VADLAMUDI, RATNA K · 2020 to 2024
$2.1M
Novel ERbeta agonists for the treatment of gliomasR01CA178499 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI BRENNER, ANDREW JACOB, VADLAMUDI, RATNA K · 2014 to 2018
$1.6M
Development of Small Molecule Inhibitor of PELP1 for Treating Advanced Breast CancerF31CA257298 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI ALTWEGG, KRISTIN ANN · 2021 to 2022
$51k
NCI NIH HHS F31 CA257298NCI NIH HHS P30 CA054174NCI NIH HHS R01 CA178499NCI NIH HHS R01 CA239227
6 · The paper itself

Abstract

backgroundGlioblastomas (GBMs) are the most lethal primary brain tumors. Estrogen receptor β (

methodsWe tested the utility of epigenetic drugs which act as an inhibitor of histone deacetylases (HDACs), histone methylases, and BET enzymes. Mechanistic studies utilized RT-qPCR, chromatin immunoprecipitation (ChIP), and western blotting. Cell viability, apoptosis, colony formation, and invasion were measured using in vitro assays. An orthotopic GBM model was used to test the efficacy of in vivo.

resultsOf all inhibitors tested, HDACi (panobinostat and romidepsin) showed the potential to increase the expression of ERβ in GBM cells. Treatment with HDACi uniquely upregulated ERβ isoform 1 expression that functions as a tumor suppressor but not ERβ isoform 5 that drives oncogenic functions. Further, combination therapy of HDACi with the ERβ agonist, LY500307, potently reduced cell viability, invasion, colony formation, and enhanced apoptosis. Mechanistic studies showed that HDACi induced ERβ is functional, as it enhanced ERβ reporter activities and ERβ target genes expression. ChIP analysis confirmed alterations in the histone acetylation at the ERβ and its target gene promoters. In orthotopic GBM model, combination therapy of panobinostat and LY500307 enhanced survival of tumor-bearing mice.

conclusionsOur results suggest that the combination therapy of HDACi and LY500307 provides therapeutic utility in overcoming the suppression of ERβ expression that commonly occurs in GBM progression.

Indexed as

epigenetic drugsestrogen receptor βglioblastomapanobinostatromidepsin

Identifiers

PMID34485908
PMCPMC8412056
OpenAlexW3183310001

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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.