Evidence map›Paper›PMID 35973996›Full record

ArticleNature communications2022

A TrkB agonist prodrug prevents bone loss via inhibiting asparagine endopeptidase and increasing osteoprotegerin.

Jing Xiong, Jianming Liao, Xia Liu, Zhaohui Zhang, Jonathan Adams, Roberto Pacifici, Keqiang Ye

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.1field-weighted citation impact, top 4% 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

25 citing papers in PubMed, 44 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. MST4 as a key driver of osteoclast activation in osteoporosis.Journal of pharmaceutical analysis · 2026
    Article
  5. Article
  6. Steap4 Promotes Senile Osteoporosis via FeAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Bidirectional Interaction Between the Brain and Bone in Traumatic Brain Injury.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Review
  17. Article
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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

7 authors at 2 institutions in 2 countries.

Jing Xiong *Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.ORCID 0000-0002-2221-5972
Jianming Liao *Department of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.ORCID 0000-0002-6196-0510
Xia LiuDepartment of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.
Zhaohui ZhangDepartment of Neurology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei Province, PR China.
Jonathan AdamsDivision of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.
Roberto PacificiDivision of Endocrinology, Metabolism and Lipids, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA.ORCID 0000-0001-6077-8250
Keqiang YeDepartment of Pathology and Laboratory Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA. kq.ye@siat.ac.cn.ORCID 0000-0002-7657-8154
Emory University · USWuhan University · CN

Funding

Molecular Regulation of AEP during AgeingRF1AG051538 · NIA · EMORY UNIVERSITY · PI YE, KEQIANG · 2016 to 2016
$3.4M
ApoE4 and C/EBP: Mutually Regulate Each Other in Alzheimer's DiseaseR01AG065177 · NIA · EMORY UNIVERSITY · PI BENIAN, GUY MARTIN · 2020 to 2024
$2.3M
NIA NIH HHS R01 AG065177NIA NIH HHS RF1 AG051538
6 · The paper itself

Abstract

Brain-derived neurotrophic factor (BDNF) and its tropomyosin-related kinase B receptor (TrkB) are expressed in human osteoblasts and mediate fracture healing. BDNF/TrkB signaling activates Akt that phosphorylates and inhibits asparagine endopeptidase (AEP), which regulates the differentiation fate of human bone marrow stromal cells (hBMSC) and is altered in postmenopausal osteoporosis. Here we show that R13, a small molecular TrkB receptor agonist prodrug, inhibits AEP and promotes bone formation. Though both receptor activator of nuclear factor kappa-Β ligand (RANK-L) and osteoprotegerin (OPG) induced by ovariectomy (OVX) remain comparable between WT and BDNF+/- mice, R13 treatment significantly elevates OPG in both mice without altering RANKL, blocking trabecular bone loss. Strikingly, both R13 and anti-RANK-L exhibit equivalent therapeutic efficacy. Moreover, OVX increases RANK-L and OPG in WT and AEP KO mice with RANK-L/OPG ratio lower in the latter than the former, attenuating bone turnover. 7,8-DHF, released from R13, activates TrkB and its downstream effector CREB, which is critical for OPG augmentation. Consequently, 7,8-DHF represses C/EBPβ/AEP pathway, inhibiting RANK-L-induced RAW264.7 osteoclastogenesis. Therefore, our findings support that R13 exerts its therapeutic efficacy toward osteoporosis via inhibiting AEP and escalating OPG.

Indexed as

OsteoprotegerinProdrugsAnimalsAsparaginyl EndopeptidaseBrain-Derived Neurotrophic FactorCarrier ProteinsCysteine EndopeptidasesFemaleHumansMiceNF-kappa BOsteoclastsRANK LigandReceptor Activator of Nuclear Factor-kappa BReceptor, trkBAsparaginyl EndopeptidaseBrain-Derived Neurotrophic FactorCarrier ProteinsCysteine EndopeptidasesNF-kappa BOsteoprotegerinProdrugsRANK LigandReceptor Activator of Nuclear Factor-kappa BReceptor, trkB

Identifiers

PMID35973996
PMCPMC9381595
OpenAlexW4291993614

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.