Evidence map›Paper›PMID 22416121›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

An over-oxidized form of superoxide dismutase found in sporadic amyotrophic lateral sclerosis with bulbar onset shares a toxic mechanism with mutant SOD1.

Stefania Guareschi, Emanuela Cova, Cristina Cereda, Mauro Ceroni, Elena Donetti, Daryl A Bosco, Davide Trotti, Piera Pasinelli

Open access · bronzeAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 116 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
116citing papers in PubMed, 3 pooled it
13.3field-weighted citation impact, top 1% 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

116 citing papers in PubMed, 3 syntheses or guidelines pooled it, 193 citations in OpenAlex.

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  17. Serum Cystatin C is a potential biomarker for predicting amyotrophic lateral sclerosis survival.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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56 more citing papers are in PubMed but not listed here.

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

8 authors at 6 institutions in 2 countries.

Stefania GuareschiWeinberg Unit for ALS Research, Department of Neuroscience, Farber Institute for Neurosciences, Thomas Jefferson University, Philadelphia, PA 19107, USA.
Emanuela Cova
Cristina Cereda
Mauro Ceroni
Elena Donetti
Daryl A Bosco
Davide Trotti
Piera Pasinelli
Fondazione Istituto Neurologico Nazionale Casimiro Mondino · ITThomas Jefferson University · USIstituti di Ricovero e Cura a Carattere Scientifico · ITUniversity of Massachusetts Chan Medical School · USUniversity of Milan · ITUniversity of Pavia · IT

Funding

SOD1/Bcl-2 induced mitochondrial dysfunction in FALS and SALS.R01NS051488 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI PASINELLI, PIERA · 2006 to 2014
$2.9M
Investigation of post-translational modifications in WT SOD1 in sporadic ALSR01NS067206 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI BOSCO, DARYL ANGELA · 2010 to 2013
$1.4M
Mechanisms of Mutant SOD 1-Mediated Mitochondria Toxicity in the Spinal Cord of AR01NS064488 · NINDS · THOMAS JEFFERSON UNIVERSITY · PI TROTTI, DAVIDE · 2009 to 2012
$1.3M
NINDS NIH HHS R01 NS051488NINDS NIH HHS R01-NS051488NINDS NIH HHS R01 NS064488NINDS NIH HHS R01-NS064488NINDS NIH HHS R01 NS067206
6 · The paper itself

Abstract

Recent studies suggest that Cu/Zn superoxide dismutase (SOD1) could be pathogenic in both familial and sporadic amyotrophic lateral sclerosis (ALS) through either inheritable or nonheritable modifications. The presence of a misfolded WT SOD1 in patients with sporadic ALS, along with the recently reported evidence that reducing SOD1 levels in astrocytes derived from sporadic patients inhibits astrocyte-mediated toxicity on motor neurons, suggest that WT SOD1 may acquire toxic properties similar to familial ALS-linked mutant SOD1, perhaps through posttranslational modifications. Using patients' lymphoblasts, we show here that indeed WT SOD1 is modified posttranslationally in sporadic ALS and is iper-oxidized (i.e., above baseline oxidation levels) in a subset of patients with bulbar onset. Derivatization analysis of oxidized carbonyl compounds performed on immunoprecipitated SOD1 identified an iper-oxidized SOD1 that recapitulates mutant SOD1-like properties and damages mitochondria by forming a toxic complex with mitochondrial Bcl-2. This study conclusively demonstrates the existence of an iper-oxidized SOD1 with toxic properties in patient-derived cells and identifies a common SOD1-dependent toxicity between mutant SOD1-linked familial ALS and a subset of sporadic ALS, providing an opportunity to develop biomarkers to subclassify ALS and devise SOD1-based therapies that go beyond the small group of patients with mutant SOD1.

Indexed as

Amyotrophic Lateral SclerosisBrain StemFemaleHumansLymphocytesMaleMiddle AgedMitochondriaMutant ProteinsOxidation-ReductionProtein BindingProtein Structure, QuaternaryProtein TransportProto-Oncogene Proteins c-bcl-2Superoxide DismutaseMutant ProteinsProto-Oncogene Proteins c-bcl-2Superoxide Dismutase

Identifiers

PMID22416121
PMCPMC3324021
OpenAlexW1999109058

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.