Evidence map›Paper›PMID 33893909›Full record

ArticleBreast cancer research and treatment2021

FASN inhibition as a potential treatment for endocrine-resistant breast cancer.

Aleksandra Gruslova, Bryan McClellan, Henriette U Balinda, Suryavathi Viswanadhapalli, Victoria Alers, Gangadhara R Sareddy, Tim Huang, Michael Garcia, Linda deGraffenried, Ratna K Vadlamudi and 1 more

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In one paragraph

Article in Breast cancer research and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.5field-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

34 citing papers in PubMed, 42 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

11 authors at 3 institutions in 1 country.

Aleksandra GruslovaUT Health San Antonio MD Anderson Cancer Center, San Antonio, TX, USA.
Bryan McClellanThe University of Texas At Austin, Austin, TX, USA.
Henriette U BalindaUT Health San Antonio MD Anderson Cancer Center, San Antonio, TX, USA.
Suryavathi ViswanadhapalliDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX, USA.
Victoria AlersUT Health San Antonio MD Anderson Cancer Center, San Antonio, TX, USA.
Gangadhara R SareddyDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX, USA.
Tim HuangUT Health San Antonio MD Anderson Cancer Center, San Antonio, TX, USA.
Michael GarciaUT Health San Antonio MD Anderson Cancer Center, San Antonio, TX, USA.
Linda deGraffenriedThe University of Texas At Austin, Austin, TX, USA.
Ratna K VadlamudiDepartment of Obstetrics and Gynecology, University of Texas Health San Antonio, San Antonio, TX, USA.
Andrew J BrennerUT Health San Antonio MD Anderson Cancer Center, San Antonio, TX, USA. brennera@uthscsa.edu.ORCID http://orcid.org/0000-0002-3985-253X
The University of Texas MD Anderson Cancer Center · USThe University of Texas Health Science Center at San Antonio · USThe University of Texas at Austin · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI David Darr · 1985 to 2026
$201.5M
TISSUE CULTURE---COREP30CA054174 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI Robin Jean Leach · 1991 to 2026
$59.1M
NCI NIH HHS P30 CA016086NCI NIH HHS P30CA054174
6 · The paper itself

Abstract

purposeThe majority of breast cancers are estrogen receptor (ERα) positive making endocrine therapy a mainstay for these patients. Unfortunately, resistance to endocrine therapy is a common occurrence. Fatty acid synthase (FASN) is a key enzyme in lipid biosynthesis and its expression is commensurate with tumor grade and resistance to numerous therapies.

methodsThe effect of the FASN inhibitor TVB-3166 on ERα expression and cell growth was characterized in tamoxifen-resistant cell lines, xenografts, and patient explants. Subcellular localization of ERα was assessed using subcellular fractionations. Palmitoylation and ubiquitination of ERα were assessed by immunoprecipitation. ERα and p-eIF2α protein levels were analyzed by Western blotting after treatment with TVB-3166 with or without the addition of palmitate or BAPTA.

resultsTVB-3166 treatment leads to a marked inhibition of proliferation in tamoxifen-resistant cells compared to the parental cells. Additionally, TVB-3166 significantly inhibited tamoxifen-resistant breast tumor growth in mice and decreased proliferation of primary tumor explants compared to untreated controls. FASN inhibition significantly reduced ERα levels most prominently in endocrine-resistant cells and altered its subcellular localization. Furthermore, we showed that the reduction of ERα expression upon TVB-3166 treatment is mediated through the induction of endoplasmic reticulum stress.

conclusionOur preclinical data provide evidence that FASN inhibition by TVB-3166 presents a promising therapeutic strategy for the treatment of endocrine-resistant breast cancer. Further clinical development of FASN inhibitors for endocrine-resistant breast cancer should be considered.

Indexed as

Breast NeoplasmsAnimalsCell Line, TumorCell ProliferationDrug Resistance, NeoplasmEnzyme InhibitorsEstrogen Receptor alphaFatty Acid Synthase, Type IFemaleGene Expression Regulation, NeoplasticHumansMiceTamoxifenEnzyme InhibitorsEstrogen Receptor alphaFASN protein, humanFatty Acid Synthase, Type ITamoxifenBreast cancerEndocrine resistanceEndoplasmic reticulumER stressEstrogen receptorFASNFatty acid synthase

Identifiers

PMID33893909
OpenAlexW3127337283

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.