Evidence map›Paper›PMID 23986861›Full record

ArticleeLife2013

APP interacts with LRP4 and agrin to coordinate the development of the neuromuscular junction in mice.

Hong Y Choi, Yun Liu, Christian Tennert, Yoshie Sugiura, Andromachi Karakatsani, Stephan Kröger, Eric B Johnson, Robert E Hammer, Weichun Lin, Joachim Herz

Open access · goldAbstract read
In one paragraph

Article in eLife, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

41 citing papers in PubMed, 71 citations in OpenAlex.

  1. Bltp1 Is Required for Survival and Normal Development and Function of the Neuromuscular Junction in Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article
  2. Review
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  4. Review
  5. Article
  6. Article
  7. NMJ-related diseases beyond the congenital myasthenic syndromes.Frontiers in cell and developmental biology · 2023
    Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Article
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  17. Article
  18. Article
  19. Skeletal muscle: A review of molecular structure and function, in health and disease.Wiley interdisciplinary reviews. Systems biology and medicine · 2020
    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

10 authors at 3 institutions in 2 countries.

Hong Y ChoiDepartment of Molecular Genetics , University of Texas Southwestern Medical Center , Dallas , United States.
Yun Liu
Christian Tennert
Yoshie Sugiura
Andromachi Karakatsani
Stephan Kröger
Eric B Johnson
Robert E Hammer
Weichun Lin
Joachim Herz
The University of Texas Southwestern Medical Center · USLudwig-Maximilians-Universität München · DEUniversity of Freiburg · DE

Funding

TRANSCRIPTIONAL REGULATION OF LDL RECEPTOR PROMOTERP01HL020948 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI GOLDSTEIN, JOSEPH L · 1985 to 2021
$103.1M
Patterning and Formation of the Neuromuscular JunctionR01NS055028 · NINDS · UT SOUTHWESTERN MEDICAL CENTER · PI WEICHUN LIN, Beverly A Rothermel · 2007 to 2026
$9.9M
Metabolism of the VLDL receptor and ApoE receptor 2R37HL063762 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI HERZ, JOACHIM J · 2010 to 2019
$4.0M
METABOLISM OF THE VLDL RECEPTOR AND APOE RECEPTOR 2R01HL063762 · NHLBI · UT SOUTHWESTERN MEDICAL CENTER · PI HERZ, JOACHIM J · 2000 to 2009
$3.1M
NHLBI NIH HHS HL20948NHLBI NIH HHS HL63762NHLBI NIH HHS P01 HL020948NHLBI NIH HHS R01 HL063762NHLBI NIH HHS R37 HL063762NINDS NIH HHS NS055028NINDS NIH HHS R01 NS055028
6 · The paper itself

Abstract

ApoE, ApoE receptors and APP cooperate in the pathogenesis of Alzheimer's disease. Intriguingly, the ApoE receptor LRP4 and APP are also required for normal formation and function of the neuromuscular junction (NMJ). In this study, we show that APP interacts with LRP4, an obligate co-receptor for muscle-specific tyrosine kinase (MuSK). Agrin, a ligand for LRP4, also binds to APP and co-operatively enhances the interaction of APP with LRP4. In cultured myotubes, APP synergistically increases agrin-induced acetylcholine receptor (AChR) clustering. Deletion of the transmembrane domain of LRP4 (LRP4 ECD) results in growth retardation of the NMJ, and these defects are markedly enhanced in APP(-/-);LRP4(ECD/ECD) mice. Double mutant NMJs are significantly reduced in size and number, resulting in perinatal lethality. Our findings reveal novel roles for APP in regulating neuromuscular synapse formation through hetero-oligomeric interaction with LRP4 and agrin and thereby provide new insights into the molecular mechanisms that govern NMJ formation and maintenance. DOI:http://dx.doi.org/10.7554/eLife.00220.001.

Indexed as

AgrinAlzheimer DiseaseAmyloid beta-Protein PrecursorAnimalsHEK293 CellsHumansLDL-Receptor Related ProteinsLigandsMice, 129 StrainMice, Inbred C57BLMice, KnockoutMultiprotein ComplexesMuscle Fibers, SkeletalNeuromuscular JunctionPhosphorylationProtein BindingAgrinAmyloid beta-Protein PrecursorLDL-Receptor Related ProteinsLigandsLrp4 protein, mouseMultiprotein ComplexesMuSK protein, mouseReceptor Protein-Tyrosine KinasesReceptors, CholinergicReceptors, LDLAlzheimer's diseaseApoELRPMousenervous system developmentneurodegenerationneuromuscular synapse

Identifiers

PMID23986861
PMCPMC3748711
OpenAlexW2036930909

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.