Evidence map›Paper›PMID 31018582›Full record

ArticleInternational journal of molecular sciences2019

In Vitro Co-culture Model of Primary Human Osteoblasts and Osteocytes in Collagen Gels.

Jasmin Skottke, Michael Gelinsky, Anne Bernhardt

Open access · goldAbstract read
In one paragraph

Article in International journal of molecular sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

26 citing papers in PubMed, 53 citations in OpenAlex.

  1. Article
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  3. Rethinking osteocyte modelsFrontiers in bioengineering and biotechnology · 2026
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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

3 authors at 1 institution in 1 country.

Jasmin SkottkeCentre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität, 01307 Dresden, Germany. jasmin.skottke@tu-dresden.de.
Michael GelinskyCentre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität, 01307 Dresden, Germany. michael.gelinsky@tu-dresden.de.
Anne BernhardtCentre for Translational Bone, Joint and Soft Tissue Research, Medical Faculty and University Hospital, Technische Universität, 01307 Dresden, Germany. anne.bernhardt@tu-dresden.de.
Technische Universität Dresden · DE

Funding

Deutsche Forschungsgemeinschaft BE 5139/3-1
6 · The paper itself

Abstract

backgroundOsteocytes are the key regulator cells in bone tissue, affecting activity of both osteoblasts and osteoclasts. Current in vitro studies on osteocyte-osteoblast interaction are invariably performed with rodent cells, mostly murine cell lines, which diminishes the clinical relevance of the data.

objectiveThe objective of the present study was to establish an in vitro co-culture system of osteoblasts and osteocytes, which is based solely on human primary cells.

methodsThree different approaches for the generation of human primary osteocytes were compared: direct isolation of osteocytes from bone tissue by multistep digestion, long-time differentiation of human pre-osteoblasts embedded in collagen gels, and short time differentiation of mature human osteoblasts in collagen gels. Co-cultivation of mature osteoblasts with osteocytes, derived from the three different approaches was performed in a transwell system, with osteocytes, embedded in collagen gels at the apical side and osteoblasts on the basal side of a porous membrane, which allowed the separate gene expression analysis for osteocytes and osteoblasts. Fluorescence microscopic imaging and gene expression analysis were performed separately for osteocytes and osteoblasts.

resultsAll examined approaches provided cells with typical osteocytic morphology, which expressed osteocyte markers E11, osteocalcin, phosphate regulating endopeptidase homolog, X-linked (PHEX), matrix extracellular phosphoglycoprotein (MEPE), sclerostin, and receptor activator of NF-κB Ligand (RANKL). Expression of osteocyte markers was not significantly changed in the presence of osteoblasts. In contrast, osteocalcin gene expression of osteoblasts was significantly upregulated in all examined co-cultures with differentiated osteocytes. Alkaline phosphatase (ALPL), bone sialoprotein II (BSPII), and RANKL expression of osteoblasts was not significantly changed in the co-culture.

conclusionInteraction of osteoblasts and osteocytes can be monitored in an in vitro model, comprising solely primary human cells.

Indexed as

AgedBiocompatible MaterialsCell DifferentiationCells, CulturedCoculture TechniquesCollagenFemaleGelsHumansMaleMiddle AgedOsteoblastsOsteocytesTissue ScaffoldsBiocompatible MaterialsCollagenGelsosteoblastosteocalcin, collagen gelosteocytethree-dimensional (3D) co-culture

Identifiers

PMID31018582
PMCPMC6514924
OpenAlexW2941202205

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.