Evidence map›Paper›PMID 40152532›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2025

Neurodegenerative and Neurodevelopmental Roles for Bulk Lipid Transporters VPS13A and BLTP2.

Sarah D Neuman, Rajan S Thakur, Scott J Gratz, Kate M O'Connor-Giles, Arash Bashirullah

Abstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Mechanistic dissection of BLTP2 targeting to ER-PM contact sites.bioRxiv : the preprint server for biology · 2026
    Article
  2. A NovelInternational journal of molecular sciences · 2025
    Article
  3. Article
  4. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Sarah D NeumanDivision of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA.ORCID https://orcid.org/0000-0001-5731-6426
Rajan S ThakurDepartment of Neuroscience, Brown University, Providence, Rhode Island, USA.ORCID https://orcid.org/0000-0002-9511-5729
Scott J GratzDepartment of Neuroscience, Brown University, Providence, Rhode Island, USA.ORCID https://orcid.org/0000-0002-0106-8336
Kate M O'Connor-GilesDepartment of Neuroscience, Brown University, Providence, Rhode Island, USA.ORCID https://orcid.org/0000-0002-2259-8408
Arash BashirullahDivision of Pharmaceutical Sciences, University of Wisconsin-Madison, Madison, Wisconsin, USA.ORCID https://orcid.org/0000-0001-7150-1775

Funding

UW COMPREHENSIVE CANCER CENTER SUPPORTP30CA014520 · NCI · UNIVERSITY OF WISCONSIN-MADISON · PI Justine Yang Bruce · 1985 to 2026
$142.6M
Resource Component: Acquisition, maintenance and distribution of Drosophila stocksP40OD018537 · OD · TRUSTEES OF INDIANA UNIVERSITY · PI Annette L. Parks · 2014 to 2026
$13.5M
Molecular mechanisms of synapse assembly and functionR01NS078179 · NINDS · UNIVERSITY OF WISCONSIN-MADISON · PI O'CONNOR-GILES, KATHALEEN M · 2013 to 2023
$3.6M
Analysis of Bulk Lipid Transport at Membrane Contact SitesR01GM155154 · NIGMS · UNIVERSITY OF WISCONSIN-MADISON · PI ARASH BASHIRULLAH, TIMOTHY S BUGNI · 2024 to 2026
$1.5M
Automated Tissue MicroarrayerS10OD023526 · OD · UNIVERSITY OF WISCONSIN-MADISON · PI MATKOWSKYJ, KRISTINA A. · 2018 to 2018
$184k
Brown University Carney Institute for Brain ScienceNCI NIH HHS P30 CA014520NIGMS NIH HHS R01 GM155154NIH HHS 1R01GM155154NIH HHS P40 OD018537NIH HHS R01NS078179NIH HHS S10 OD023526NINDS NIH HHS R01 NS078179
6 · The paper itself

Abstract

backgroundBridge-like lipid transfer proteins (BLTPs) mediate bulk lipid transport at membrane contact sites. Mutations in BLTPs are linked to both early-onset neurodevelopmental and later-onset neurodegenerative diseases, including movement disorders. The tissue specificity and temporal requirements of BLTPs in disease pathogenesis remain poorly understood.

objectiveThe objective of this study was to determine tissue-specific and aging-dependent roles for VPS13A and BLTP2 using Drosophila models.

methodsWe generated tissue-specific knockdowns of the VPS13A ortholog (Vps13) and the BLTP2 ortholog (hobbit) in neurons and muscles of Drosophila. We analyzed age-dependent locomotor behavior, neurodegeneration, and synapse development and function.

resultsNeuron-specific loss of the VPS13A ortholog caused neurodegeneration followed by aging-dependent movement deficits and reduced lifespan, whereas muscle-specific loss affected only lifespan. In contrast, neuronal loss of the BLTP2 ortholog resulted in severe early-onset locomotor defects without neurodegeneration, whereas muscle loss impaired synaptogenesis and neurotransmission at the neuromuscular junction.

conclusionsVPS13A maintains neuronal survival, whereas BLTP2 orchestrates synaptic development. The phenotypic specificity of BLTP function provides mechanistic insights into distinct disease trajectories for BLTP-associated disorders. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

Indexed as

Carrier ProteinsDrosophila ProteinsNeurodegenerative DiseasesVesicular Transport ProteinsAgingAnimalsAnimals, Genetically ModifiedDisease Models, AnimalDrosophilaDrosophila melanogasterNeuromuscular JunctionNeuronsCarrier ProteinsDrosophila ProteinsVesicular Transport Proteinslipidslipid transfer proteinsmembrane contact sitesparkinsonismVPS13A

Identifiers

PMID40152532
PMCPMC12273619

What OpenQuestion holds

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LicenceCC BY-NC-ND
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.