Evidence map›Paper›PMID 22926702›Full record

ArticleLeukemia2013

Anti-leukemic mechanisms of pegylated arginase I in acute lymphoblastic T-cell leukemia.

K Morrow, C P Hernandez, P Raber, L Del Valle, A M Wilk, S Majumdar, D Wyczechowska, K Reiss, P C Rodriguez

Open access · greenAbstract read
In one paragraph

Article in Leukemia, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

38 citing papers in PubMed, 48 citations in OpenAlex.

  1. Review
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  5. Article
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  7. Article
  8. Arginine-dependent immune responses.Cellular and molecular life sciences : CMLS · 2021
    Review
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  11. Article
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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

9 authors at 1 institution in 1 country.

K MorrowLouisiana State University, Health Sciences Center, New Orleans, LA, USA.
C P Hernandez
P Raber
L Del Valle
A M Wilk
S Majumdar
D Wyczechowska
K Reiss
P C Rodriguez
Louisiana State University Health Sciences Center New Orleans · US

Funding

TUMOR MICROENVIRONMENT AND B CELL LYMPHOMASP20RR021970 · NCRR · LSU HEALTH SCIENCES CENTER · PI THOMPSON, HILARY W · 2005 to 2011
$14.1M
Mentoring Translational Researchers in LouisianaP20GM103501 · NIGMS · LSU HEALTH SCIENCES CENTER · PI OCHOA, AUGUSTO C. · 2012 to 2014
$6.3M
Notch-1 in T Cells: a central mediator of tumor induced anergyR21CA162133 · NCI · LSU HEALTH SCIENCES CENTER · PI RODRIGUEZ, PAULO CESAR · 2012 to 2013
$330k
NCI NIH HHS 1R21CA162133NCI NIH HHS R21 CA162133NCRR NIH HHS P20 RR021970NCRR NIH HHS P20RR021970NIGMS NIH HHS P20 GM103501
6 · The paper itself

Abstract

New treatments for adults with acute lymphoblastic T-cell leukemia (T-ALL) are urgently needed, as the current rate of overall remission in these patients is only about 40 percent. We recently showed the potential therapeutic benefit of the pegylated-human-arginase I (peg-Arg I) in T-ALL. However, the mechanisms by which peg-Arg I induces an anti-T-ALL effect remained unknown. Our results show the induction of T-ALL cell apoptosis by peg-Arg I, which associated with a global arrest in protein synthesis and with the phosphorylation of the eukaryotic-translation-initiation factor 2 alpha (eIF2α). Inhibition of eIF2α phosphorylation in T-ALL cells prevented the apoptosis induced by peg-Arg I, whereas the expression of a phosphomimetic eIF2α form increased the sensibility of T-ALL cells to peg-Arg I. Phosphorylation of eIF2α by peg-Arg I was mediated through kinases PERK and GCN2 and down-regulation of phosphatase GADD34. GCN2 and decreased GADD34 promoted T-ALL cell apoptosis after treatment with peg-Arg I, whereas PERK had an unexpected anti-apoptotic role. Additional results showed that phospho-eIF2α signaling further increased the anti-leukemic effects induced by peg-Arg I in T-ALL-bearing mice. These results suggest the central role of phospho-eIF2α in the anti-T-ALL effects induced by peg-Arg I and support its study as a therapeutic target.

Indexed as

AnimalsApoptosisArginaseBlotting, WesternCell ProliferationeIF-2 KinaseEukaryotic Initiation Factor-2FemaleFluorescent Antibody TechniqueHumansMiceMice, Inbred NODMice, SCIDPhosphorylationPolyethylene GlycolsPrecursor T-Cell Lymphoblastic Leukemia-LymphomaArginaseEIF2AK4 protein, humaneIF-2 KinaseEukaryotic Initiation Factor-2Polyethylene GlycolsPPP1R15A protein, humanProtein Phosphatase 1Protein Serine-Threonine KinasesRecombinant Proteins

Identifiers

PMID22926702
PMCPMC3594435
OpenAlexW2017755915

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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.