Evidence map›Paper›PMID 22927399›Full record

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

Serum Response Factor (SRF)-cofilin-actin signaling axis modulates mitochondrial dynamics.

Henning Beck, Kevin Flynn, Katrin S Lindenberg, Heinz Schwarz, Frank Bradke, Simone Di Giovanni, Bernd Knöll

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 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.1field-weighted citation impact, top 13% 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

34 citing papers in PubMed, 52 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

7 authors at 5 institutions in 1 country.

Henning BeckGraduate School of Cellular and Molecular Neuroscience, University of Tübingen, 72076 Tübingen, Germany.
Kevin Flynn
Katrin S Lindenberg
Heinz Schwarz
Frank Bradke
Simone Di Giovanni
Bernd Knöll
German Center for Neurodegenerative Diseases · DEUniversity of Tübingen · DEHertie Institute for Clinical Brain Research · DEMax Planck Institute for Developmental Biology · DEUniversität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Aberrant mitochondrial function, morphology, and transport are main features of neurodegenerative diseases. To date, mitochondrial transport within neurons is thought to rely mainly on microtubules, whereas actin might mediate short-range movements and mitochondrial anchoring. Here, we analyzed the impact of actin on neuronal mitochondrial size and localization. F-actin enhanced mitochondrial size and mitochondrial number in neurites and growth cones. In contrast, raising G-actin resulted in mitochondrial fragmentation and decreased mitochondrial abundance. Cellular F-actin/G-actin levels also regulate serum response factor (SRF)-mediated gene regulation, suggesting a possible link between SRF and mitochondrial dynamics. Indeed, SRF-deficient neurons display neurodegenerative hallmarks of mitochondria, including disrupted morphology, fragmentation, and impaired mitochondrial motility, as well as ATP energy metabolism. Conversely, constitutively active SRF-VP16 induced formation of mitochondrial networks and rescued huntingtin (HTT)-impaired mitochondrial dynamics. Finally, SRF and actin dynamics are connected via the actin severing protein cofilin and its slingshot phosphatase to modulate neuronal mitochondrial dynamics. In summary, our data suggest that the SRF-cofilin-actin signaling axis modulates neuronal mitochondrial function.

Indexed as

Signal TransductionActinsAdenosine TriphosphateAnimalsCofilin 1Herpes Simplex Virus Protein Vmw65HippocampusHuntingtin ProteinMiceMice, TransgenicMicrotubulesMitochondriaModels, BiologicalMutationNerve Tissue ProteinsNeuronsActinsAdenosine TriphosphateCofilin 1Herpes Simplex Virus Protein Vmw65Htt protein, mouseHuntingtin ProteinNerve Tissue ProteinsNuclear ProteinsPhosphoric Monoester HydrolasesSerum Response Factor

Identifiers

PMID22927399
PMCPMC3458318
OpenAlexW2081685506

What Socratic 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 Socratic graph.