Evidence map›Paper›PMID 34585770›Full record

ArticleThe EMBO journal2021

Phospholipid-flippase chaperone CDC50A is required for synapse maintenance by regulating phosphatidylserine exposure.

Tao Li, Diankun Yu, Hayeon C Oak, Beika Zhu, Li Wang, Xueqiao Jiang, Robert S Molday, Arnold Kriegstein, Xianhua Piao

Open access · bronzeAbstract read
In one paragraph

Article in The EMBO journal, 2021. 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
1.9field-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

22 citing papers in PubMed, 35 citations in OpenAlex.

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  15. Microglia: Activity-dependent regulators of neural circuits.Annals of the New York Academy of Sciences · 2024
    Review
  16. Synapse Regulation.Advances in neurobiology · 2024
    Review
  17. Review
  18. Review
  19. Review
  20. Review
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

9 authors at 2 institutions in 2 countries.

Tao LiWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.ORCID 0000-0002-9174-1271
Diankun YuWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.
Hayeon C OakWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.
Beika ZhuWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.
Li WangWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.
Xueqiao JiangWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.
Robert S MoldayDepartment of Biochemistry and Molecular Biology, University of British Columbia, Vancouver, BC, Canada.ORCID 0000-0002-4479-1831
Arnold KriegsteinWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.
Xianhua PiaoWeill Institute for Neuroscience, University of California, San Francisco (UCSF), San Francisco, CA, USA.ORCID 0000-0001-7540-6767
University of California, San Francisco · USUniversity of British Columbia · CA

Funding

Regulation of Cellular Pathwaysin Human Brain DevelopmentP01NS083513 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ALVAREZ-BUYLLA, ARTURO · 2014 to 2024
$12.6M
Adhesion G Protein-Coupled Receptors in CNS Development and RegenerationR01NS094164 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PIAO, XIANHUA · 2015 to 2025
$4.5M
Glial Mechanisms Of Developmental Synapse RefinementR01NS108446 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PIAO, XIANHUA · 2018 to 2022
$2.9M
Adhesion GPCR interactome landscaping by in vivo biotinylation proteomicsR21NS108312 · NINDS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI PIAO, XIANHUA · 2018 to 2019
$448k
NINDS NIH HHS P01 NS083513NINDS NIH HHS R01 NS094164NINDS NIH HHS R01 NS108446NINDS NIH HHS R21 NS108312
6 · The paper itself

Abstract

Synaptic refinement is a critical physiological process that removes excess synapses to establish and maintain functional neuronal circuits. Recent studies have shown that focal exposure of phosphatidylserine (PS) on synapses acts as an "eat me" signal to mediate synaptic pruning. However, the molecular mechanism underlying PS externalization at synapses remains elusive. Here, we find that murine CDC50A, a chaperone of phospholipid flippases, localizes to synapses, and that its expression depends on neuronal activity. Cdc50a knockdown leads to phosphatidylserine exposure at synapses and subsequent erroneous synapse removal by microglia partly via the GPR56 pathway. Taken together, our data support that CDC50A safeguards synapse maintenance by regulating focal phosphatidylserine exposure at synapses.

Indexed as

AnimalsGene Expression RegulationGenes, ReporterLuminescent ProteinsMaleMembrane ProteinsMiceMice, Inbred C57BLMice, TransgenicMicrogliaNeuronal PlasticityNeuronsPhosphatidylserinesReceptors, G-Protein-CoupledRed Fluorescent ProteinRNA, Small InterferingAdgrg1 protein, mouseLuminescent ProteinsMembrane ProteinsPhosphatidylserinesReceptors, G-Protein-CoupledRed Fluorescent ProteinRNA, Small InterferingSlc17a6 protein, mouseTMEM30a protein, mouseVesicular Glutamate Transport Protein 2CDC50AGPR56microgliaphosphatidylserinesynapse elimination

Identifiers

PMID34585770
PMCPMC8561630
OpenAlexW3203752481

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.