Evidence map›Paper›PMID 38318851›Full record

ArticleeLife2024

Depletion of SMN protein in mesenchymal progenitors impairs the development of bone and neuromuscular junction in spinal muscular atrophy.

Sang-Hyeon Hann, Seon-Yong Kim, Ye Lynne Kim, Young-Woo Jo, Jong-Seol Kang, Hyerim Park, Se-Young Choi, Young-Yun Kong

Open access · goldAbstract read
In one paragraph

Article in eLife, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 19% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 4 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Fibro-adipogenic progenitor cells from murine SMA muscles are intrinsically adipogenic.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  5. Article
  6. TUSC3 regulates ERMA-mediated MgNature communications · 2025
    Article
  7. Article
  8. 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

8 authors at 1 institution in 1 country.

Sang-Hyeon Hann *School of Biological Sciences, Seoul National University, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0002-0871-3414
Seon-Yong Kim *Department of Physiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.
Ye Lynne KimSchool of Biological Sciences, Seoul National University, Seoul, Republic of Korea.
Young-Woo JoSchool of Biological Sciences, Seoul National University, Seoul, Republic of Korea.
Jong-Seol KangSchool of Biological Sciences, Seoul National University, Seoul, Republic of Korea.
Hyerim ParkSchool of Biological Sciences, Seoul National University, Seoul, Republic of Korea.
Se-Young ChoiDepartment of Physiology, Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0001-7534-5167
Young-Yun KongSchool of Biological Sciences, Seoul National University, Seoul, Republic of Korea.ORCID https://orcid.org/0000-0001-7335-3729
Seoul National University · KR

Funding

National Research Foundation of Korea NRF-2020R1A2C3011464National Research Foundation of Korea NRF-2020R1A5A1018081National Research Foundation of Korea NRF-2022R1A2C3007621
6 · The paper itself

Abstract

Spinal muscular atrophy (SMA) is a neuromuscular disorder characterized by the deficiency of the survival motor neuron (SMN) protein, which leads to motor neuron dysfunction and muscle atrophy. In addition to the requirement for SMN in motor neurons, recent studies suggest that SMN deficiency in peripheral tissues plays a key role in the pathogenesis of SMA. Using limb mesenchymal progenitor cell (MPC)-specific SMN-depleted mouse models, we reveal that SMN reduction in limb MPCs causes defects in the development of bone and neuromuscular junction (NMJ). Specifically, these mice exhibited impaired growth plate homeostasis and reduced insulin-like growth factor (IGF) signaling from chondrocytes, rather than from the liver. Furthermore, the reduction of SMN in fibro-adipogenic progenitors (FAPs) resulted in abnormal NMJ maturation, altered release of neurotransmitters, and NMJ morphological defects. Transplantation of healthy FAPs rescued the morphological deterioration. Our findings highlight the significance of mesenchymal SMN in neuromusculoskeletal pathogenesis of SMA and provide insights into potential therapeutic strategies targeting mesenchymal cells for the treatment of SMA.

Indexed as

Muscular Atrophy, SpinalNeuromuscular DiseasesSurvival of Motor Neuron 1 ProteinAnimalsDisease Models, AnimalMiceMotor NeuronsNeuromuscular JunctionTranscription FactorsSmn1 protein, mouseSurvival of Motor Neuron 1 ProteinTranscription Factorschondrocytefibro-adipogenic progenitorgrowth plateIGF signalingmedicinemouseneuromuscular junctionneurosciencespinal muscular atrophy

Identifiers

PMID38318851
PMCPMC10945524
OpenAlexW4388455520

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.