Evidence map›Paper›PMID 29507819›Full record

ArticleBone research2018

IGF-I induced phosphorylation of PTH receptor enhances osteoblast to osteocyte transition.

Tao Qiu, Janet L Crane, Liang Xie, Lingling Xian, Hui Xie, Xu Cao

Open access · goldAbstract read
In one paragraph

Article in Bone research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
2.8field-weighted citation impact, top 7% 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

28 citing papers in PubMed, 2 syntheses or guidelines pooled it, 61 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Review
  7. Mechanosignaling in Osteoporosis: When Cells Feel the Force.International journal of molecular sciences · 2025
    Review
  8. Review
  9. Article
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  11. Article
  12. Article
  13. Review
  14. Article
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  17. FGF7-induced E11 facilitates cell-cell communication through connexin43.International journal of biological sciences · 2021
    Article
  18. Role of Metabolism in Bone Development and Homeostasis.International journal of molecular sciences · 2020
    Review
  19. Review
  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

6 authors at 2 institutions in 1 country.

Tao Qiu *1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA.
Janet L Crane *1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA.
Liang Xie1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA.
Lingling Xian1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA.
Hui Xie1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA.
Xu Cao1Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, MD USA.
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Trap+ Mononuclear Cells in Periosteal Bone FormationR01AR071432 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI CAO, XU · 2017 to 2021
$2.2M
TGF-beta Activity in the Subchondral Bone and Onset of OAR01AR063943 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI CAO, XU · 2013 to 2017
$2.2M
Temporal-spatial Regulation of MSCs by IGF-1K08AR064833 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI CRANE, JANET · 2014 to 2018
$650k
Phosphorylation of PTH1R by TGF-betaRII in Bone RemodelingK01AR060433 · NIAMS · JOHNS HOPKINS UNIVERSITY · PI QIU, TAO · 2011 to 2015
$647k
NIAMS NIH HHS K01 AR060433NIAMS NIH HHS K08 AR064833NIAMS NIH HHS R01 AR063943NIAMS NIH HHS R01 AR071432
6 · The paper itself

Abstract

Parathyroid hormone (PTH) regulates bone remodeling by activating PTH type 1 receptor (PTH1R) in osteoblasts/osteocytes. Insulin-like growth factor type 1 (IGF-1) stimulates mesenchymal stem cell differentiation to osteoblasts. However, little is known about the signaling mechanisms that regulates the osteoblast-to-osteocyte transition. Here we report that PTH and IGF-I synergistically enhance osteoblast-to-osteocyte differentiation. We identified that a specific tyrosine residue, Y494, on the cytoplasmic domain of PTH1R can be phosphorylated by insulin-like growth factor type I receptor (IGF1R) in vitro. Phosphorylated PTH1R localized to the barbed ends of actin filaments and increased actin polymerization during morphological change of osteoblasts into osteocytes. Disruption of the phosphorylation site reduced actin polymerization and dendrite length. Mouse models with conditional ablation of PTH1R in osteoblasts demonstrated a reduction in the number of osteoctyes and dendrites per osteocyte, with complete overlap of PTH1R with phosphorylated-PTH1R positioning in osteocyte dendrites in wild-type mice. Thus, our findings reveal a novel signaling mechanism that enhances osteoblast-to-osteocyte transition by direct phosphorylation of PTH1R by IGF1R.

Identifiers

PMID29507819
PMCPMC5827661
OpenAlexW2790244228

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.