Evidence map›Paper›PMID 34681843›Full record

ArticleInternational journal of molecular sciences2021

Induction of Endoplasmic Reticulum Stress-Mediated Apoptosis by Aminosteroid RM-581 Efficiently Blocks the Growth of PC-3 Cancer Cells and Tumors Resistant or Not to Docetaxel.

René Maltais, Jenny Roy, Martin Perreault, Sachiko Sato, Julie-Christine Lévesque, Donald Poirier

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

9 citing papers in PubMed, 12 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

6 authors at 1 institution in 1 country.

René MaltaisLaboratory of Medicinal Chemistry, Endocrinology and Nephrology Unit, CHU de Québec-Research Center, Québec, QC G1V 4G2, Canada.ORCID 0000-0002-0394-1653
Jenny RoyLaboratory of Medicinal Chemistry, Endocrinology and Nephrology Unit, CHU de Québec-Research Center, Québec, QC G1V 4G2, Canada.
Martin PerreaultLaboratory of Medicinal Chemistry, Endocrinology and Nephrology Unit, CHU de Québec-Research Center, Québec, QC G1V 4G2, Canada.
Sachiko SatoBioimaging Platform, CHU de Québec-Research Center, Faculty of Medicine, Laval University, Québec, QC G1V 4G2, Canada.
Julie-Christine LévesqueBioimaging Platform, CHU de Québec-Research Center, Faculty of Medicine, Laval University, Québec, QC G1V 4G2, Canada.
Donald PoirierLaboratory of Medicinal Chemistry, Endocrinology and Nephrology Unit, CHU de Québec-Research Center, Québec, QC G1V 4G2, Canada.ORCID 0000-0002-7751-3184
Université Laval · CA

Funding

Ministère de l'économie et de l'innovation du Québec N/AProgram "Crois en moi, crois en le recherche" (R. Maltais) de la Fondation du CHU de Québec N/ASOVAR N/A
6 · The paper itself

Abstract

Aminosteroid derivative RM-581 was previously identified as an endoplasmic-reticulum (ER) stress inducer with potent in vitro and in vivo anticancer activities. We report its evaluation in androgen-independent prostate cancer (PC-3) cells. RM-581 efficiently blocks PC-3 cell proliferation with stronger activity than that of a selection of known antineoplastic agents. This later also showed a synergistic effect with docetaxel, able to block the proliferation of docetaxel-resistant PC-3 cells and, contrary to docetaxel, did not induce cell resistance. RM-581 induced an increase in the expression level of ER stress-related markers of apoptosis, potentially triggered by the presence of RM-581 in the ER of PC-3 cells. These in vitro results were then successfully translated in vivo in a PC-3 xenograft tumor model in nude mice, showing superior blockade than that of docetaxel. RM-581 was also able to stop the progression of PC-3 cells when they had become resistant to docetaxel treatment. Concomitantly, we observed a decrease in gene markers of mevalonate and fatty acid pathways, and intratumoral levels of cholesterol by 19% and fatty acids by 22%. Overall, this work demonstrates the potential of an ER stress inducer as an anticancer agent for the treatment of prostate cancers that are refractory to commonly used chemotherapy treatments.

Indexed as

ApoptosisEndoplasmic Reticulum StressAnimalsAntineoplastic AgentsCell Line, TumorCell ProliferationDocetaxelEstranesHumansMaleMiceMice, NudePC-3 CellsProstatic NeoplasmsXenograft Model Antitumor AssaysAntineoplastic AgentsDocetaxelEstranesRM-581aminosteroidcholesterolendoplasmic reticulum stressfatty acidprostate cancer

Identifiers

PMID34681843
PMCPMC8537847
OpenAlexW3207505340

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.