Evidence map›Paper›PMID 25043105›Full record

ArticleJournal of cellular biochemistry2014

Mutual enhancement of differentiation of osteoblasts and osteocytes occurs through direct cell-cell contact.

Koji Fujita, Qian Xing, Sundeep Khosla, David G Monroe

Abstract read
In one paragraph

Article in Journal of cellular biochemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

19 citing papers in PubMed, 28 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Review
  5. Article
  6. JBMR plus · 2023
    Article
  7. Article
  8. Article
  9. The osteocyte as a signaling cell.Physiological reviews · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. miR-219a-5p Regulates Rorβ During Osteoblast Differentiation and in Age-related Bone Loss.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2019
    Article
  17. Connexin43 and Runx2 Interact to Affect Cortical Bone Geometry, Skeletal Development, and Osteoblast and Osteoclast Function.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2017
    Article
  18. Osteocytes and Skeletal Pathophysiology.Current molecular biology reports · 2015
    Article
  19. 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

4 authors at 1 institution in 1 country.

Koji FujitaEndocrine Research Unit and Kogod Center on Aging, Mayo Clinic, Rochester, Minnesota.
Qian Xing
Sundeep Khosla
David G Monroe
Mayo Clinic in Florida · US

Funding

SEX STEROIDS, GROWTH FACTORS, &BONE CELL FUNCTIONP01AG004875 · NIA · MAYO CLINIC ROCHESTER · PI KHOSLA, SUNDEEP · 1985 to 2019
$30.8M
NIA NIH HHS P01 AG004875NIA NIH HHS R01 AG004875
6 · The paper itself

Abstract

There is increasing evidence that osteocytes regulate multiple aspects of bone remodeling through bi-directional communication with osteoblasts. This is potentially mediated through cell-cell contact via osteocytic dendritic processes, through the activity of secreted factors, or both. To test whether cell-cell contact affects gene expression patterns in osteoblasts and osteocytes, we used a co-culture system where calvarial osteoblasts and IDG-SW3 osteocytes were allowed to touch through a porous membrane, while still being physically separated to allow for phenotypic characterization. Osteoblast/osteocyte cell-contact resulted in up-regulation of osteoblast differentiation genes in the osteoblasts, when compared to wells where no cell contact was allowed. Examination of osteocyte gene expression when in direct contact with osteoblasts also revealed increased expression of osteocyte-specific genes. These data suggest that physical contact mutually enhances both the osteoblastic and osteocytic character of each respective cell type. Interestingly, Gja1 (a gap junction protein) was increased in the osteoblasts only when in direct contact with the osteocytes, suggesting that Gja1 may mediate some of the effects of direct cell contact. To test this hypothesis, we treated the direct contact system with the gap junction inhibitor 18-alpha-glycyrrhetinic acid and found that Bglap expression was significantly inhibited. This suggests that osteocytes may regulate late osteoblast differentiation at least in part through Gja1. Identification of the specific factors involved in the enhancement of differentiation of both osteoblasts and osteocytes when in direct contact will uncover new biology concerning how these bone cells communicate.

Indexed as

Cell CommunicationAnimalsCell DifferentiationCell ProliferationCells, CulturedCoculture TechniquesConnexin 43Glycyrrhetinic AcidMiceMice, Inbred C57BLOrgan SpecificityOsteoblastsOsteocytesSkullUp-RegulationConnexin 43GJA1 protein, mouseGlycyrrhetinic AcidCOCULTUREOSTEOBLASTOSTEOCYTEQPCR

Identifiers

PMID25043105
PMCPMC4169216
OpenAlexW2105931887

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.