Evidence map›Paper›PMID 42259289›Full record

ArticleNeuron2026

Developmental and age-related synapse elimination is mediated by glial Croquemort.

Taylor R Jay, Yunsik Kang, Victor Ouellet-Massicotte, Mariel Kristine B Micael, Victoria L Kacouros-Perkins, Jiakun Chen, Amy Sheehan, Marc R Freeman

Abstract read
In one paragraph

Article in Neuron, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Taylor R JayVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA. Electronic address: taylor-jay@uiowa.edu.
Yunsik KangVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Victor Ouellet-MassicotteVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Mariel Kristine B MicaelVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Victoria L Kacouros-PerkinsVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Jiakun ChenVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Amy SheehanVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA.
Marc R FreemanVollum Institute, Oregon Health & Science University, Portland, OR 97239, USA. Electronic address: freemmar@ohsu.edu.

Funding

Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI KEVIN R COOK · 2014 to 2026
$13.5M
Timeline and molecular pathways regulating astrocyte endfoot morphogenesisR01NS124146 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI Marc R Freeman, Kelly R Monk · 2021 to 2026
$3.2M
Astrocyte control of neural circuits and behaviorR37NS053538 · NINDS · UNIV OF MASSACHUSETTS MED SCH WORCESTER · PI FREEMAN, MARC R · 2016 to 2022
$2.9M
How do non-myelinating glia ensheath axons?R01NS112215 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI FREEMAN, MARC R · 2019 to 2023
$1.7M
How do astrocytes remodel neural circuits?K99NS126642 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI KANG, YUNSIK · 2022 to 2023
$243k
Investigating novel mechanisms that underlie glial-mediated synapse elimination in development and agingK99NS133298 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI JAY, TAYLOR REAGAN · 2023 to 2024
$225k
Glial Regulation of Neuronal Physiology in Response to Local InjuryF32NS117647 · NINDS · OREGON HEALTH & SCIENCE UNIVERSITY · PI JAY, TAYLOR REAGAN · 2020 to 2022
$153k
NIH HHS P40 OD018537NINDS NIH HHS F32 NS117647NINDS NIH HHS K99 NS126642NINDS NIH HHS K99 NS133298NINDS NIH HHS R01 NS112215NINDS NIH HHS R01 NS124146NINDS NIH HHS R37 NS053538
6 · The paper itself

Abstract

Neurons and glia work together to dynamically regulate neural circuit assembly and maintenance. In this study, we show that Drosophila exhibit large-scale synapse formation and elimination as part of normal CNS circuit maturation and that glia use conserved molecules to regulate these processes. Using a high-throughput ELISA-based in vivo screening assay, we identify new glial genes that regulate synapse numbers in Drosophila in vivo, including the scavenger receptor ortholog Croquemort (Crq). Crq acts as an essential regulator of glial-dependent synapse elimination during development, with glial Crq loss leading to excess CNS synapses and progressive seizure susceptibility in adults. Loss of Crq in glia also prevents age-related synaptic, but not neuronal, loss in the adult brain. This work provides new insights into the cellular and molecular mechanisms that underlie synapse development and maintenance across the lifespan and identifies glial Crq as a key regulator of these processes.

Indexed as

astrocyteCD36Crqglianeurodevelopmentneuronal remodelingSCARB2seizuresynaptic pathologiessynaptogenesis

Identifiers

PMID42259289
PMCPMC13394363

What Socratic holds

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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.