ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2011
PKA/AKAP1 and PP2A/Bβ2 regulate neuronal morphogenesis via Drp1 phosphorylation and mitochondrial bioenergetics.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 133 papers.
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.
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.
Who cites it
133 citing papers in PubMed, 197 citations in OpenAlex.
- Drosophila dendrites are resilient to adult-onset deficits in mitochondrial dynamics.The Journal of cell biology · 2026Article
- PRKAR2A/RIIα as a candidate spatial cAMP-PKA signal router in triple-negative breast cancer metastasis: evidence boundaries, competing models and decisive experiments.Molecular biology reports · 2026Review
- AKAP1 Protects Retinal Ganglion Cells and Preserves Vision by Improving Mitochondrial and Synaptic Health in Glaucomatous Neurodegeneration.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026Article
- GLP-1R agonist semaglutide protects human forebrain organoids from cholesterol-induced neurotoxicity.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Brain mitochondria as key drivers of cognition and behaviour.Nature reviews. Neuroscience · 2026Review
- Platelet Drp1 phosphorylation provides a platform for immune-based platelet function testing.Blood · 2026Article
- Mechano-metabolic feedback connects tissue fluidity to mitochondrial DNA-dependent immunity in breast cancer.Nature communications · 2026Article
- Bridging tradition and modernity: mitochondrial dynamics as a Traditional Chinese Medicine therapeutic target in cardiovascular disease.Chinese medicine · 2026Review
- Autophagy and mitophagy at the synapse and beyond: implications for learning, memory and neurological disorders.Autophagy · 2026Review
- AKAP1 regulates mitochondrial and synaptic homeostasis to enable neuroprotection and repair in retinal ganglion cell degeneration.bioRxiv : the preprint server for biology · 2025Article
- Article
- Redox Homeostasis in Metabolic Syndrome and Type II Diabetes: Role of Skeletal Muscle and Impact of Gold-Standard Treatments.International journal of molecular sciences · 2025Review
- Single-Nucleus RNA Sequencing of HDAC6 Inhibition in Resolving Doxorubicin-Induced Cognitive Impairment.Molecular neurobiology · 2025Article
- Rho kinase isoforms in neurodegeneration: from cellular functions to therapeutic targets.Molecular biology reports · 2025Review
- DRP1, fission and apoptosis.Cell death discovery · 2025Review
- Mitochondria are positioned at dendritic branch induction sites, a process requiring rhotekin2 and syndapin I.Nature communications · 2025Article
- De novo missense variants in the PP2A regulatory subunit PPP2R2B in a neurodevelopmental syndrome: potential links to mitochondrial dynamics and spinocerebellar ataxias.Human molecular genetics · 2025Article
- Research Progress of Mitochondrial Dynamics and Autophagy in Diabetic Complications: New Treatment Strategies.Diabetes, metabolic syndrome and obesity : targets and therapy · 2025Review
- Ultrastructural features of psychological stress resilience in the brain: a microglial perspective.Open biology · 2024Review
- Extremely Low-Frequency Electromagnetic Field (ELF-EMF) Increases Mitochondrial Electron Transport Chain Activities and Ameliorates Depressive Behaviors in Mice.International journal of molecular sciences · 2024Article
73 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
Mitochondrial shape is determined by fission and fusion reactions, perturbation of which can contribute to neuronal injury and disease. Mitochondrial fission is catalyzed by dynamin-related protein 1 (Drp1), a large GTPase of the dynamin family that is highly expressed in neurons and regulated by various posttranslational modifications, including phosphorylation. We report here that reversible phosphorylation of Drp1 at a conserved Ser residue by an outer mitochondrial kinase (PKA/AKAP1) and phosphatase (PP2A/Bβ2) impacts dendrite and synapse development in cultured rat hippocampal neurons. PKA/AKAP1-mediated phosphorylation of Drp1 at Ser656 increased mitochondrial length and dendrite occupancy, enhancing dendritic outgrowth but paradoxically decreasing synapse number and density. Opposing PKA/AKAP1, PP2A/Bβ2-mediated dephosphorylation of Drp1 at Ser656 fragmented and depolarized mitochondria and depleted them from dendrites, stunting dendritic outgrowth but augmenting synapse formation. Raising and lowering intracellular calcium reproduced the effects of dephospho-Drp1 and phospho-Drp1on dendrite and synapse development, respectively, while boosting mitochondrial membrane potential with l-carnitine-fostered dendrite at the expense of synapse formation without altering mitochondrial size or distribution. Thus, outer mitochondrial PKA and PP2A regulate neuronal development by inhibiting and promoting mitochondrial division, respectively. We propose that the bioenergetic state of mitochondria, rather than their localization or shape per se, is the key effector of Drp1, altering calcium homeostasis to modulate neuronal morphology and connectivity.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.