Evidence map›Paper›PMID 23830581›Full record

ArticleBiomaterials2013

Direct measurement of matrix metalloproteinase activity in 3D cellular microenvironments using a fluorogenic peptide substrate.

Jennifer L Leight, Daniel L Alge, Andrew J Maier, Kristi S Anseth

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 42 papers.

0numbers the graph read from it
0cells of the map it votes in
42citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

42 citing papers in PubMed, 79 citations in OpenAlex.

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  13. Click chemistry functionalization of self-assembling peptide hydrogels.Journal of biomedical materials research. Part A · 2023
    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

4 authors at 2 institutions in 1 country.

Jennifer L LeightHoward Hughes Medical Institute and the BioFrontiers Institute, University of Colorado at Boulder, Boulder, CO 80309, USA.
Daniel L Alge
Andrew J Maier
Kristi S Anseth
University of Colorado Boulder · USHoward Hughes Medical Institute · US

Funding

Osteogenic Hydrogel Niches to Promote hMSC Migration and DifferentiationR01DE016523 · NIDCR · UNIVERSITY OF COLORADO AT BOULDER · PI ANSETH, KRISTI S. · 2005 to 2023
$6.2M
Protease Activity in 3D MatricesR21EB018505 · NIBIB · UNIVERSITY OF COLORADO · PI ANSETH, KRISTI S. · 2014 to 2015
$406k
Howard Hughes Medical InstituteNIBIB NIH HHS R21 EB018505NIDCR NIH HHS R01 DE016523NIDCR NIH HHS R01DE016523
6 · The paper itself

Abstract

Incorporation of degradable moieties into synthetic hydrogels has greatly increased the utility of these three-dimensional matrices for in vitro cell culture as well as tissue engineering applications. A common method for introducing degradability is the inclusion of oligopeptides sensitive to cleavage by matrix metalloproteinases (MMPs), enabling cell-mediated remodeling and migration within the material. While this strategy has been effective, characterization and measurement of cell-mediated degradation in these materials has remained challenging. There are 20+ MMP family members whose activity is regulated in space and time by a number of biochemical and biophysical cues. Thus, the typical approach of characterizing cleavage of degradable moieties in solution with recombinant enzymes does not easily translate to three-dimensional cell-mediated matrix remodeling. To address this challenge, we report here the synthesis of a cell-laden hydrogel matrix functionalized with a fluorogenic peptide substrate to provide real-time, quantitative monitoring of global MMP activity. Using this system, stimulation of MMP activity was observed with growth factor treatment in mammary epithelial cells and compared to classical zymography results. Further, the effect of biophysical cues on MMP activity of human mesenchymal stem cells was also investigated where more rigid hydrogels were observed to increase MMP activity. The regulation of MMP activity by these biochemical and biophysical cues highlights the need for in situ, real-time measurement of hydrogel degradation, and use of these functionalized hydrogels will aid in future rational design of degradable synthetic hydrogels for in vitro cell studies and tissue engineering applications.

Indexed as

Cellular MicroenvironmentAmino Acid SequenceCell LineCells, ImmobilizedCross-Linking ReagentsFluorescent DyesHumansHydrogelsMatrix MetalloproteinasesMesenchymal Stem CellsMolecular Sequence DataPeptidesSolubilityTransforming Growth Factor beta1Cross-Linking ReagentsFluorescent DyesHydrogelsMatrix MetalloproteinasesPeptidesTransforming Growth Factor beta12D3DBiosensorDegradationECMextracellular matrixhMSChuman mesenchymal stem cellsHydrogelLAPlithium phenyl-2,4,6-trimethylbenzoylphosphinatematrix metalloproteinaseMatrix metalloproteinasesMechanical propertiesMMPPEG-NBPeptidepoly(ethylene glycol)-norbornenerelative standard deviationRSDthree-dimensionaltwo-dimensional

Identifiers

PMID23830581
PMCPMC4077845
OpenAlexW2070740874

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.