Evidence map›Paper›PMID 30793413›Full record

ArticleBrain pathology (Zurich, Switzerland)2019

CDKL5 deficiency predisposes neurons to cell death through the deregulation of SMAD3 signaling.

Claudia Fuchs, Giorgio Medici, Stefania Trazzi, Laura Gennaccaro, Giuseppe Galvani, Chiara Berteotti, Elisa Ren, Manuela Loi, Elisabetta Ciani

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Brain pathology (Zurich, Switzerland), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.4field-weighted citation impact, top 19% 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

27 citing papers in PubMed, 34 citations in OpenAlex.

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  8. Transcriptomic Profiling of Zebrafish Mutant forInternational journal of molecular sciences · 2025
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  12. Novel CDKL5 targets identified in human iPSC-derived neurons.Cellular and molecular life sciences : CMLS · 2024
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 1 institution in 1 country.

Claudia FuchsDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Giorgio MediciDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Stefania TrazziDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Laura GennaccaroDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.ORCID 0000-0002-0438-2152
Giuseppe GalvaniDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Chiara BerteottiDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Elisa RenDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Manuela LoiDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.
Elisabetta CianiDepartment of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy.ORCID 0000-0003-3130-5168
University of Bologna · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

CDKL5 deficiency disorder (CDD) is a rare encephalopathy characterized by early onset epilepsy and severe intellectual disability. CDD is caused by mutations in the X-linked cyclin-dependent kinase-like 5 (CDKL5) gene, a member of a highly conserved family of serine-threonine kinases. Only a few physiological substrates of CDKL5 are currently known, which hampers the discovery of therapeutic strategies for CDD. Here, we show that SMAD3, a primary mediator of TGF-β action, is a direct phosphorylation target of CDKL5 and that CDKL5-dependent phosphorylation promotes SMAD3 protein stability. Importantly, we found that restoration of the SMAD3 signaling through TGF-β1 treatment normalized defective neuronal survival and maturation in Cdkl5 knockout (KO) neurons. Moreover, we demonstrate that Cdkl5 KO neurons are more vulnerable to neurotoxic/excitotoxic stimuli. In vivo treatment with TGF-β1 prevents increased NMDA-induced cell death in hippocampal neurons from Cdkl5 KO mice, suggesting an involvement of the SMAD3 signaling deregulation in the neuronal susceptibility to excitotoxic injury of Cdkl5 KO mice. Our finding reveals a new function for CDKL5 in maintaining neuronal survival that could have important implications for susceptibility to neurodegeneration in patients with CDD.

Indexed as

AnimalsBrainCell DeathCell SurvivalEpileptic SyndromesHippocampusMiceMice, Inbred C57BLMice, KnockoutNeuronsPhosphorylationProtein Serine-Threonine KinasesSignal TransductionSmad3 ProteinSpasms, InfantileTransforming Growth Factor betaCDKL5 protein, mouseProtein Serine-Threonine KinasesSmad3 ProteinTransforming Growth Factor betaCDKL5hippocampal neuronsneuronal maturationneuronal survivalSMAD3TGF-β signaling

Identifiers

PMID30793413
PMCPMC8028508
OpenAlexW2916913424

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.