Evidence map›Paper›PMID 29337302›Full record

ArticleThe Journal of clinical investigation2018

Critical roles of αII spectrin in brain development and epileptic encephalopathy.

Yu Wang, Tuo Ji, Andrew D Nelson, Katarzyna Glanowska, Geoffrey G Murphy, Paul M Jenkins, Jack M Parent

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of clinical investigation, 2018. 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
5.5field-weighted citation impact, top 4% 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, 72 citations in OpenAlex.

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  13. De Novo and Dominantly Inherited SPTAN1 Mutations Cause Spastic Paraplegia and Cerebellar Ataxia.Movement disorders : official journal of the Movement Disorder Society · 2022
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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

7 authors at 4 institutions in 3 countries.

Yu WangDepartment of Neurology.
Tuo JiDepartment of Neurology.
Andrew D NelsonDepartment of Pharmacology.
Katarzyna GlanowskaDepartment of Neurology.
Geoffrey G MurphyMolecular and Behavioral Neuroscience Institute.
Paul M JenkinsDepartment of Pharmacology.
Jack M ParentDepartment of Neurology.
Laboratoire d’immunologie intégrative du cancer · FRNeuroscience Institute · ITUniversity of Michigan–Ann Arbor · USVA Ann Arbor Healthcare System · US

Funding

PREDOCTORAL TRAINING IN GENETICST32GM007544 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MORAN, JOHN V. · 1985 to 2022
$11.3M
Testing the Calcium Hypothesis of Age-related Cognitive DeclineR01AG052934 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI MURPHY, GEOFFREY G · 2016 to 2020
$2.1M
Mechanisms and Models of SPTAN1 Epileptic EncephalopathyK08NS099379 · NINDS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI WANG, YU · 2017 to 2021
$972k
NIA NIH HHS R01 AG052934NIGMS NIH HHS T32 GM007544NINDS NIH HHS K08 NS099379
6 · The paper itself

Abstract

The nonerythrocytic α-spectrin-1 (SPTAN1) gene encodes the cytoskeletal protein αII spectrin. Mutations in SPTAN1 cause early infantile epileptic encephalopathy type 5 (EIEE5); however, the role of αII spectrin in neurodevelopment and EIEE5 pathogenesis is unknown. Prior work suggests that αII spectrin is absent in the axon initial segment (AIS) and contributes to a diffusion barrier in the distal axon. Here, we have shown that αII spectrin is expressed ubiquitously in rodent and human somatodendritic and axonal domains. CRISPR-mediated deletion of Sptan1 in embryonic rat forebrain by in utero electroporation caused altered dendritic and axonal development, loss of the AIS, and decreased inhibitory innervation. Overexpression of human EIEE5 mutant SPTAN1 in embryonic rat forebrain and mouse hippocampal neurons led to similar developmental defects that were also observed in EIEE5 patient-derived neurons. Additionally, patient-derived neurons displayed aggregation of spectrin complexes. Taken together, these findings implicate αII spectrin in critical aspects of dendritic and axonal development and synaptogenesis, and support a dominant-negative mechanism of SPTAN1 mutations in EIEE5.

Indexed as

AnimalsAxonsBrainBrain DiseasesCarrier ProteinsCRISPR-Cas SystemsDendritesEpilepsyFemaleGene DeletionHippocampusHumansMaleMiceMice, TransgenicMicrofilament ProteinsCarrier ProteinsMicrofilament ProteinsSpectrinDevelopmentEpilepsyGenetic diseasesNeuroscience

Identifiers

PMID29337302
PMCPMC5785268
OpenAlexW2783565857

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.