Evidence map›Paper›PMID 33731878›Full record

ArticleGenetics in medicine : official journal of the American College of Medical Genetics2021

Lysosomal cholesterol accumulation contributes to the movement phenotypes associated with NUS1 haploinsufficiency.

Seok-Ho Yu, Tong Wang, Kali Wiggins, Raymond J Louie, Emilio F Merino, Cindy Skinner, Maria B Cassera, Kirsten Meagher, Paul Goldberg, Neggy Rismanchi and 4 more

Open access · greenAbstract read
In one paragraph

Article in Genetics in medicine : official journal of the American College of Medical Genetics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.0field-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

23 citing papers in PubMed, 39 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Case Report:Frontiers in pediatrics · 2025
    Article
  10. Expanding the spectrum ofFrontiers in genetics · 2025
    Article
  11. Novel Copy Number Deletion InvolvingClinical case reports · 2025
    Article
  12. Article
  13. Article
  14. DHDDS and NUS1: A Converging Pathway and Common Phenotype.Movement disorders clinical practice · 2024
    Review
  15. Genomic insights into the comorbidity between type 2 diabetes and schizophrenia.medRxiv : the preprint server for health sciences · 2023
    Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. Article
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

14 authors at 4 institutions in 2 countries.

Seok-Ho YuGreenwood Genetic Center, Greenwood, SC, USA.
Tong WangGreenwood Genetic Center, Greenwood, SC, USA.
Kali WigginsGreenwood Genetic Center, Greenwood, SC, USA.
Raymond J LouieGreenwood Genetic Center, Greenwood, SC, USA.
Emilio F MerinoDepartment of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA, USA.
Cindy SkinnerGreenwood Genetic Center, Greenwood, SC, USA.
Maria B CasseraDepartment of Biochemistry and Molecular Biology, and Center for Tropical and Emerging Global Diseases (CTEGD), University of Georgia, Athens, GA, USA.
Kirsten MeagherDepartment of Medical Genetics, British Columbia Women's Hospital and Health Centre, Vancouver, BC, Canada.
Paul GoldbergDepartment of Medical Genetics, British Columbia Women's Hospital and Health Centre, Vancouver, BC, Canada.
Neggy RismanchiDepartment of Neuroscience at the University of California, San Diego, San Diego, CA, USA.
Dillon ChenDepartment of Neuroscience at the University of California, San Diego, San Diego, CA, USA.
Michael J LyonsGreenwood Genetic Center, Greenwood, SC, USA.
Heather Flanagan-SteetGreenwood Genetic Center, Greenwood, SC, USA.
Richard SteetGreenwood Genetic Center, Greenwood, SC, USA. rsteet@ggc.org.
Greenwood Genetic Center · USB.C. Women's Hospital & Health Centre · CARady Children's Hospital-San Diego · USUniversity of Georgia · US

Funding

PATHOGENIC MECHANISMS OF LYSOSOMAL DISEASER01GM086524 · NIGMS · UNIVERSITY OF GEORGIA · PI STEET, RICHARD · 2009 to 2021
$4.0M
Characterization of isoprenoid biosynthesis in human malaria gametocytesR01AI108819 · NIAID · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI CASSERA, MARIA BELEN · 2014 to 2018
$1.9M
Pathogenic Mechanisms of Lysosomal DiseaseR01NS128907 · NINDS · GREENWOOD GENETIC CENTER · PI STEET, RICHARD · 2022 to 2025
$1.2M
NIAID NIH HHS R01 AI108819NIGMS NIH HHS R01 GM086524NINDS NIH HHS R01 NS128907
6 · The paper itself

Abstract

purposeVariants in NUS1 are associated with a congenital disorder of glycosylation, developmental and epileptic encephalopathies, and are possible contributors to Parkinson disease pathogenesis. How the diverse functions of the NUS1-encoded Nogo B receptor (NgBR) relate to these different phenotypes is largely unknown. We present three patients with de novo heterozygous variants in NUS1 that cause a complex movement disorder, define pathogenic mechanisms in cells and zebrafish, and identify possible therapy.

methodsComprehensive functional studies were performed using patient fibroblasts, and a zebrafish model mimicking NUS1 haploinsufficiency.

resultsWe show that de novo NUS1 variants reduce NgBR and Niemann-Pick type C2 (NPC2) protein amount, impair dolichol biosynthesis, and cause lysosomal cholesterol accumulation. Reducing nus1 expression 50% in zebrafish embryos causes abnormal swim behaviors, cholesterol accumulation in the nervous system, and impaired turnover of lysosomal membrane proteins. Reduction of cholesterol buildup with 2-hydroxypropyl-ß-cyclodextrin significantly alleviates lysosomal proteolysis and motility defects.

conclusionOur results demonstrate that these NUS1 variants cause multiple lysosomal phenotypes in cells. We show that the movement deficits associated with nus1 reduction in zebrafish arise in part from defective efflux of cholesterol from lysosomes, suggesting that treatments targeting cholesterol accumulation could be therapeutic.

Indexed as

HaploinsufficiencyNiemann-Pick Disease, Type CAnimalsCell LineCholesterolHumansLysosomesPhenotypeReceptors, Cell SurfaceZebrafishCholesterolNUS1 protein, humanReceptors, Cell Surface

Identifiers

PMID33731878
PMCPMC8263489
OpenAlexW3138648391

What OpenQuestion holds

Textmetadata
LicenceTDM
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.