Evidence map›Paper›PMID 34492582›Full record

ArticleBiomaterials2021

Integrin and syndecan binding peptide-conjugated alginate hydrogel for modulation of nucleus pulposus cell phenotype.

Xiaohong Tan, Era Jain, Marcos N Barcellona, Evan Morris, Sydney Neal, Munish C Gupta, Jacob M Buchowski, Michael Kelly, Lori A Setton, Nathaniel Huebsch

Open access · greenAbstract read
In one paragraph

Article in Biomaterials, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
4.9field-weighted citation impact, top 4% 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

29 citing papers in PubMed, 54 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

10 authors at 1 institution in 1 country.

Xiaohong TanDepartment of Biomedical Engineering, Washington University in St. Louis, USA.
Era JainDepartment of Biomedical Engineering, Washington University in St. Louis, USA.
Marcos N BarcellonaDepartment of Biomedical Engineering, Washington University in St. Louis, USA.
Evan MorrisDepartment of Biomedical Engineering, Washington University in St. Louis, USA.
Sydney NealDepartment of Biomedical Engineering, Washington University in St. Louis, USA.
Munish C GuptaDepartment of Orthopedic Surgery, Washington University School of Medicine, USA.
Jacob M BuchowskiDepartment of Orthopedic Surgery, Washington University School of Medicine, USA.
Michael KellyDepartment of Orthopedic Surgery, Washington University School of Medicine, USA.
Lori A SettonDepartment of Biomedical Engineering, Washington University in St. Louis, USA; Department of Orthopedic Surgery, Washington University School of Medicine, USA; Center for Regenerative Medicine, Washington University in St. Louis, USA.
Nathaniel HuebschDepartment of Biomedical Engineering, Washington University in St. Louis, USA; Center for Regenerative Medicine, Washington University in St. Louis, USA; Center for Investigation of Membrane Excitability Diseases, Center for Cardiovascular Research, Washington University in St. Louis, USA. Electronic address: nhuebsch@wustl.edu.
Washington University in St. Louis · US

Funding

X-RAY RESEARCH AND DEVELOPMENT WITH/WITHOUT LIVE ANIMALSP41RR005959 · NCRR · DUKE UNIVERSITY · PI PANDIT, PRACHI · 1990 to 2011
$16.0M
Intervertebral Disc Degeneration and Cross-Talk with the Nervous System - NOSI Diversity SupplementR01AR077678 · NIAMS · WASHINGTON UNIVERSITY · PI SETTON, LORI A., TANG, SIMON YUE-CHEONG · 2020 to 2024
$3.7M
Engineering Microenvironments for the Nucleus Pulposus CellR01AR069588 · NIAMS · WASHINGTON UNIVERSITY · PI SETTON, LORI A. · 2016 to 2019
$1.2M
Use of polymer-peptide system to deliver cells for intervertebral disc regenerationR41AR079324 · NIAMS · BIORESTORATIVE THERAPIES, INC. · PI SILVA, FRANCISCO J · 2021 to 2021
$257k
NCRR NIH HHS P41 RR005959NIAMS NIH HHS R01 AR069588NIAMS NIH HHS R01 AR077678NIAMS NIH HHS R41 AR079324
6 · The paper itself

Abstract

Biomaterial based strategies have been widely explored to preserve and restore the juvenile phenotype of cells of the nucleus pulposus (NP) in degenerated intervertebral discs (IVD). With aging and maturation, NP cells lose their ability to produce necessary extracellular matrix and proteoglycans, accelerating disc degeneration. Previous studies have shown that integrin or syndecan binding peptide motifs from laminin can induce NP cells from degenerative human discs to re-express juvenile NP-specific cell phenotype and biosynthetic activity. Here, we engineered alginate hydrogels to present integrin- and syndecan-binding peptides alone or in combination (cyclic RGD and AG73, respectively) to introduce bioactive features into the alginate gels. We demonstrated human NP cells cultured upon and within alginate hydrogels presented with cRGD and AG73 peptides exhibited higher cell viability, biosynthetic activity, and NP-specific protein expression over alginate alone. Moreover, the combination of the two peptide motifs elicited markers of the NP-specific cell phenotype, including N-Cadherin, despite differences in cell morphology and multicellular cluster formation between 2D and 3D cultures. These results represent a promising step toward understanding how distinct adhesive peptides can be combined to guide NP cell fate. In the future, these insights may be useful to rationally design hydrogels for NP cell-transplantation based therapies for IVD degeneration.

Indexed as

Intervertebral DiscIntervertebral Disc DegenerationNucleus PulposusAlginatesHumansHydrogelsIntegrinsPeptidesPhenotypeSyndecansAlginatesHydrogelsIntegrinsPeptidesSyndecansCell therapyDisc degenerationIntervertebral discLaminin-mimetic peptidesLigand presentationMicroenvironment

Identifiers

PMID34492582
PMCPMC9107941
OpenAlexW3197683781

What Socratic 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 Socratic graph.