Evidence map›Paper›PMID 20801242›Full record

ArticleActa biomaterialia2011

Covalently immobilized platelet-derived growth factor-BB promotes angiogenesis in biomimetic poly(ethylene glycol) hydrogels.

Jennifer E Saik, Daniel J Gould, Emily M Watkins, Mary E Dickinson, Jennifer L West

Open access · greenAbstract read
In one paragraph

Article in Acta biomaterialia, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed
7.8field-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

69 citing papers in PubMed, 165 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Angiogenesis: Biological Mechanisms and In Vitro Models.Annals of biomedical engineering · 2025
    Review
  5. Article
  6. Review
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  8. Article
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  13. Article
  14. Bioengineering in salivary gland regeneration.Journal of biomedical science · 2022
    Review
  15. Review
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  17. Article
  18. Review
  19. Review
  20. Article

9 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Jennifer E SaikDepartment of Bioengineering, Rice University, Houston, TX 77005, USA.
Daniel J Gould
Emily M Watkins
Mary E Dickinson
Jennifer L West
Rice University · USBaylor College of Medicine · US

Funding

Tissue Engineering of Hematopoietic BoneR01EB005173 · NIBIB · BAYLOR COLLEGE OF MEDICINE · PI HIRSCHI, KAREN KEMPER · 2005 to 2009
$5.9M
Neuro-Vascular RegenerationP20EB007076 · NIBIB · BAYLOR COLLEGE OF MEDICINE · PI HIRSCHI, KAREN KEMPER · 2006 to 2009
$4.4M
Fabrication, perfusion and imaging of pre-vascularized tissue scaffoldsR01HL097520 · NHLBI · BAYLOR COLLEGE OF MEDICINE · PI DICKINSON, MARY E, WEST, JENNIFER L · 2010 to 2013
$1.9M
Human Endothelial Cell DifferentiationR01HL096360 · NHLBI · YALE UNIVERSITY · PI HIRSCHI, KAREN KEMPER · 2009 to 2013
$1.5M
NHLBI NIH HHS R01 HL096360NHLBI NIH HHS R01 HL097520NIBIB NIH HHS P20 EB007076NIBIB NIH HHS R01 EB005173
6 · The paper itself

Abstract

The field of tissue engineering is severely limited by a lack of microvascularization in tissue engineered constructs. Biomimetic poly(ethylene glycol) hydrogels containing covalently immobilized platelet-derived growth factor BB (PDGF-BB) were developed to promote angiogenesis. Poly(ethylene glycol) hydrogels resist protein absorption and subsequent non-specific cell adhesion, thus providing a "blank slate", which can be modified through the incorporation of cell adhesive ligands and growth factors. PDGF-BB is a key angiogenic protein able to support neovessel stabilization by inducing functional anastomoses and recruiting pericytes. Due to the widespread effects of PDGF in the body and a half-life of only 30 min in circulating blood, immobilization of PDGF-BB may be necessary. In this work bioactive, covalently immobilized PDGF-BB was shown to induce tubulogenesis on two-dimensional modified surfaces, migration in three-dimensional (3D) degradable hydrogels and angiogenesis in a mouse cornea micropocket angiogenesis assay. Covalently immobilized PDGF-BB was also used in combination with covalently immobilized fibroblast growth factor-2, which led to significantly increased endothelial cell migration in 3D degradable hydrogels compared with the presentation of each factor alone. When a co-culture of endothelial cells and mouse pericyte precursor 10T1/2 cells was seeded onto modified surfaces tubule formation was independent of surface modifications with covalently immobilized growth factors. Furthermore, the combination of soluble PDGF-BB and immobilized PDGF-BB induced a more robust vascular response compared with soluble PDGF-BB alone when implanted into an in vivo mouse cornea micropocket angiogenesis assay. Based on these results, we believe bioactive hydrogels can be tailored to improve the formation of functional microvasculature for tissue engineering.

Indexed as

AnimalsBecaplerminBiocompatible MaterialsBiomarkersBlotting, WesternCarbonatesCell MovementCoculture TechniquesEndothelial CellsEnzyme ActivationFibroblast Growth Factor 2HumansHydrogelsImmobilized ProteinsImplants, ExperimentalMatrix MetalloproteinasesBecaplerminBiocompatible MaterialsBiomarkersCarbonatesFibroblast Growth Factor 2HydrogelsImmobilized ProteinsMatrix MetalloproteinasesPlatelet-Derived Growth FactorPolyethylene GlycolsProto-Oncogene Proteins c-sisSuccinimidessuccinimidyl carbonate

Identifiers

PMID20801242
PMCPMC3049810
OpenAlexW1978290755

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.