Evidence map›Paper›PMID 33077834›Full record

ArticleOncogene2020

A cell-penetrating MARCKS mimetic selectively triggers cytolytic death in glioblastoma.

Nicholas J Eustace, Joshua C Anderson, Jason M Warram, Hayley N Widden, Rune T Pedersen, Hasan Alrefai, Zeel Patel, Patricia H Hicks, William J Placzek, G Yancey Gillespie and 2 more

Open access · greenAbstract read
In one paragraph

Article in Oncogene, 2020. 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
1.4field-weighted citation impact, top 18% 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, 20 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

12 authors at 1 institution in 1 country.

Nicholas J EustaceDepartment of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA.
Joshua C AndersonDepartment of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA.ORCID http://orcid.org/0000-0002-6977-9054
Jason M WarramDepartment of Otolaryngology, The University of Alabama at Birmingham, Birmingham, AL, USA.
Hayley N WiddenDepartment of Biochemistry and Molecular Genetics, The University of Alabama at Birmingham, Birmingham, AL, USA.
Rune T PedersenChemoMetec, DK-3450, Allerod, Denmark.ORCID http://orcid.org/0000-0002-0655-1351
Hasan AlrefaiDepartment of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA.ORCID http://orcid.org/0000-0002-7240-8748
Zeel PatelDepartment of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA.
Patricia H HicksDepartment of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA.
William J PlaczekDepartment of Biochemistry and Molecular Genetics, The University of Alabama at Birmingham, Birmingham, AL, USA.ORCID http://orcid.org/0000-0003-4096-8617
G Yancey GillespieDepartment of Neurosurgery, The University of Alabama at Birmingham, Birmingham, AL, USA.ORCID http://orcid.org/0000-0001-6436-9542
Anita B HjelmelandDepartment of Cell, Developmental and Integrative Biology, The University of Alabama at Birmingham, Birmingham, AL, USA.
Christopher D WilleyDepartment of Radiation Oncology, The University of Alabama at Birmingham, Birmingham, AL, USA. cwilley@uabmc.edu.ORCID http://orcid.org/0000-0001-9953-0279
University of Alabama at Birmingham · US

Funding

XRAY CRYSTALLOGRAPHYP30CA013148 · NCI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Robert S Welner · 1985 to 2026
$165.9M
MEDICAL SCIENTIST TRAINING PROGRAMT32GM008361 · NIGMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI YACOUBIAN, TALENE ALENE · 1992 to 2024
$16.8M
NRSA Training CoreTL1TR003106 · NCATS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SAAG, KENNETH G · 2019 to 2023
$3.7M
Training Program in Brain Tumor BiologyT32NS048039 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BENVENISTE, ETTY N · 2007 to 2017
$2.0M
NCATS NIH HHS TL1 TR003106NCI NIH HHS P30 CA013148NIGMS NIH HHS T32 GM008361NINDS NIH HHS T32 NS048039U.S. Department of Health & Human Services | NIH | National Institute of General Medical Sciences (NIGMS) T32GM008361U.S. Department of Health & Human Services | NIH | National Institute of Neurological Disorders and Stroke (NINDS) T32NS048039
6 · The paper itself

Abstract

Glioblastoma (GBM) is an aggressive malignancy with limited effectiveness of standard of care therapies including surgery, radiation, and temozolomide chemotherapy necessitating novel therapeutics. Unfortunately, GBMs also harbor several signaling alterations that protect them from traditional therapies that rely on apoptotic programmed cell death. Because almost all GBM tumors have dysregulated phosphoinositide signaling as part of that process, we hypothesized that peptide mimetics derived from the phospholipid binding domain of Myristoylated alanine-rich C-kinase substrate (MARCKS) could serve as a novel GBM therapeutic. Using molecularly classified patient-derived xenograft (PDX) lines, cultured in stem-cell conditions, we demonstrate that cell permeable MARCKS effector domain (ED) peptides potently target all GBM molecular classes while sparing normal human astrocytes. Cell death mechanistic testing revealed that these peptides produce rapid cytotoxicity in GBM that overcomes caspase inhibition. Moreover, we identify a GBM-selective cytolytic death mechanism involving plasma membrane targeting and intracellular calcium accumulation. Despite limited relative partitioning to the brain, tail-vein peptide injection revealed tumor targeting in intracranially implanted GBM PDX. These results indicate that MARCKS ED peptide therapeutics may overcome traditional GBM resistance mechanisms, supporting further development of similar agents.

Indexed as

AnimalsApoptosisAstrocytesBlood-Brain BarrierBrain NeoplasmsCaspasesCell Line, TumorCell Membrane PermeabilityDrug Resistance, NeoplasmGlioblastomaHumansMiceMyristoylated Alanine-Rich C Kinase SubstratePeptide FragmentsProtein DomainsSignal TransductionCaspasesMARCKS protein, humanMyristoylated Alanine-Rich C Kinase SubstratePeptide Fragments

Identifiers

PMID33077834
PMCPMC7885995
OpenAlexW3093057641

What OpenQuestion holds

Textmetadata
LicenceTDM
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.