Evidence map›Paper›PMID 30391802›Full record

ArticleBiomaterials2019

The role of chondroitin sulfate in regulating hypertrophy during MSC chondrogenesis in a cartilage mimetic hydrogel under dynamic loading.

Elizabeth A Aisenbrey, Stephanie J Bryant

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
7.5field-weighted citation impact, top 2% 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

39 citing papers in PubMed, 91 citations in OpenAlex.

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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

2 authors at 1 institution in 1 country.

Elizabeth A AisenbreyDepartment of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309-0596, USA.
Stephanie J BryantDepartment of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309-0596, USA; BioFrontiers Institute, University of Colorado, Boulder, CO 80309-0596, USA; Material Science and Engineering Program, University of Colorado, Boulder, CO 80309-0596, USA. Electronic address: Stephanie.bryant@colorado.edu.
University of Colorado Boulder · US

Funding

Mechanically Stiff Hydrogels for Osteochondral Tissue EngineeringR01AR069060 · NIAMS · UNIVERSITY OF COLORADO · PI Stephanie J Bryant · 2016 to 2026
$4.1M
NIAMS NIH HHS R01 AR069060
6 · The paper itself

Abstract

Mesenchymal stem cells (MSCs) are promising for cartilage regeneration, but readily undergo terminal differentiation. The aim of this study was two-fold: a) investigate physiochemical cues from a cartilage-mimetic hydrogel under dynamic compressive loading on MSC chondrogenesis and hypertrophy and b) identify whether Smad signaling and p38 MAPK signaling mediate hypertrophy during MSC chondrogenesis. Human MSCs were encapsulated in photoclickable poly(ethylene glycol) hydrogels containing chondroitin sulfate and RGD, cultured under dynamic compressive loading or free swelling for three weeks, and evaluated by qPCR and immunohistochemistry. Loading inhibited hypertrophy in the cartilage-mimetic hydrogel indicated by a reduction in pSmad 1/5/8, Runx2, and collagen X proteins, while maintaining chondrogenesis by pSmad 2/3 and collagen II proteins. Inhibiting pSmad 1/5/8 under free swelling culture significantly reduced collagen X protein, similar to the loading condition. Chondroitin sulfate was necessary for load-inhibited hypertrophy and correlated with enhanced S100A4 expression, which is downstream of the osmotic responsive transcription factor NFAT5. Inhibiting p38 MAPK under loading reduced S100A4 expression, and upregulated Runx2 and collagen X protein. Findings from this study indicate that chondroitin sulfate with dynamic loading create physiochemical cues that support MSC chondrogenesis and attenuate hypertrophy through Smad 1/5/8 inhibition and p38 MAPK upregulation.

Indexed as

ChondrogenesisAdultBiocompatible MaterialsBiomimetic MaterialsCartilageCells, CulturedCells, ImmobilizedChondroitin SulfatesFemaleHumansHydrogelsMaleMesenchymal Stem CellsTissue EngineeringYoung AdultBiocompatible MaterialsChondroitin SulfatesHydrogels

Identifiers

PMID30391802
PMCPMC7650166
OpenAlexW2898188240

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.