Evidence map›Paper›PMID 35319464›Full record

ArticleeLife2022

Dendritic branch structure compartmentalizes voltage-dependent calcium influx in cortical layer 2/3 pyramidal cells.

Andrew T Landau, Pojeong Park, J David Wong-Campos, He Tian, Adam E Cohen, Bernardo L Sabatini

Open access · goldAbstract read
In one paragraph

Article in eLife, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

22 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
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  6. A dendrite-resolved,bioRxiv : the preprint server for biology · 2026
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  16. Synaptotagmin 7 Sculpts Short-Term Plasticity at a High Probability Synapse.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
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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

6 authors at 2 institutions in 1 country.

Andrew T LandauHoward Hughes Medical Institute, Department of Neurobiology, Harvard Medical School, Boston, United States.ORCID 0000-0001-9105-1636
Pojeong Park *Department of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.
J David Wong-Campos *Department of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.
He TianDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.ORCID 0000-0003-3282-7275
Adam E CohenDepartment of Chemistry and Chemical Biology, Harvard University, Cambridge, United States.ORCID 0000-0002-8699-2404
Bernardo L SabatiniHoward Hughes Medical Institute, Department of Neurobiology, Harvard Medical School, Boston, United States.ORCID 0000-0003-0095-9177
Harvard University · USHoward Hughes Medical Institute · US

Funding

Action and interaction of ionotropic and metabotropic neurotransmissionR37NS046579 · NINDS · HARVARD MEDICAL SCHOOL · PI SABATINI, BERNARDO L · 2018 to 2024
$4.6M
Brain-wide correlation of single-cell firing properties to patterns of gene expressionRF1MH117042 · NIMH · HARVARD UNIVERSITY · PI COHEN, ADAM EZRA · 2018 to 2018
$1.2M
Modulation of calcium-mediated plasticity signals in dendritic spinesF31NS113353 · NINDS · HARVARD MEDICAL SCHOOL · PI LANDAU, ANDREW · 2019 to 2021
$99k
NIMH NIH HHS RF1 MH117042NINDS NIH HHS F31 NS113353NINDS NIH HHS R37 NS046579
6 · The paper itself

Abstract

Back-propagating action potentials (bAPs) regulate synaptic plasticity by evoking voltage-dependent calcium influx throughout dendrites. Attenuation of bAP amplitude in distal dendritic compartments alters plasticity in a location-specific manner by reducing bAP-dependent calcium influx. However, it is not known if neurons exhibit branch-specific variability in bAP-dependent calcium signals, independent of distance-dependent attenuation. Here, we reveal that bAPs fail to evoke calcium influx through voltage-gated calcium channels (VGCCs) in a specific population of dendritic branches in mouse cortical layer 2/3 pyramidal cells, despite evoking substantial VGCC-mediated calcium influx in sister branches. These branches contain VGCCs and successfully propagate bAPs in the absence of synaptic input; nevertheless, they fail to exhibit bAP-evoked calcium influx due to a branch-specific reduction in bAP amplitude. We demonstrate that these branches have more elaborate branch structure compared to sister branches, which causes a local reduction in electrotonic impedance and bAP amplitude. Finally, we show that bAPs still amplify synaptically-mediated calcium influx in these branches because of differences in the voltage-dependence and kinetics of VGCCs and NMDA-type glutamate receptors. Branch-specific compartmentalization of bAP-dependent calcium signals may provide a mechanism for neurons to diversify synaptic tuning across the dendritic tree.

Indexed as

CalciumDendritesAction PotentialsAnimalsCalcium ChannelsMicePyramidal CellsCalciumCalcium Channelsaction potentialsbiophysicscalciumdendritesimpedancemouseneuroscience

Identifiers

PMID35319464
PMCPMC8979587
OpenAlexW4220838987

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.