Evidence map›Paper›PMID 18929408›Full record

ArticleBiomaterials2009

Layered PLG scaffolds for in vivo plasmid delivery.

Christopher B Rives, Anne des Rieux, Marina Zelivyanskaya, Stuart R Stock, William L Lowe, Lonnie D Shea

Abstract read
In one paragraph

Article in Biomaterials, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
3.2field-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

19 citing papers in PubMed, 39 citations in OpenAlex.

  1. Review
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  4. Enhancing human islet transplantation by localized release of trophic factors from PLG scaffolds.American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons · 2014
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  7. Review
  8. Article
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  16. Lentivirus delivery by adsorption to tissue engineering scaffolds.Journal of biomedical materials research. Part A · 2010
    Article
  17. Article
  18. 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

6 authors at 2 institutions in 2 countries.

Christopher B RivesDepartment of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Tech E136, Evanston, IL 60208, USA.
Anne des Rieux
Marina Zelivyanskaya
Stuart R Stock
William L Lowe
Lonnie D Shea
Northwestern University · USUCLouvain · BE

Funding

Regenerative Scaffold Technologies for CNS and DiabetesR01EB003806 · NIBIB · NORTHWESTERN UNIVERSITY AT CHICAGO · PI STUPP, SAMUEL I · 2004 to 2015
$10.7M
Controlled Release Scaffolds for Nerve RegenerationR01EB005678 · NIBIB · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI ANDERSON, AILEEN J, SHEA, LONNIE D · 2007 to 2018
$6.0M
NIBIB NIH HHS EB003806NIBIB NIH HHS R01 EB003806NIBIB NIH HHS R01 EB005678
6 · The paper itself

Abstract

Gene delivery from tissue engineering scaffolds can induce localized expression of tissue inductive factors to direct the function of progenitor cells, either endogenous or transplanted. In this report, we developed a layering approach for fabricating scaffolds with encapsulated plasmid, and investigated in vivo gene transfer following implantation into intraperitoneal fat, a widely used site for cell transplantation. Porous poly(lactide-co-glycolide) (PLG) scaffolds were fabricated using a gas foaming method, in which a non-porous layer containing plasmid was inserted between two porous polymer layers. The layered scaffold design decouples the scaffold structural requirements from its function as a drug delivery vehicle, and significantly increased the plasmid incorporation efficiency relative to scaffolds formed without layers. For multiple plasmid doses (200, 400, and 800mug), transgene expression levels peaked during the first few days and then declined over a period of 1-2 weeks. Transfected cells were observed both in the surrounding adipose tissue and within the scaffold interior. Macrophages were identified as an abundantly transfected cell type. Scaffolds delivering plasmid encoding fibroblast growth factor-2 (FGF-2) stimulated a 40% increase in the total vascular volume fraction relative to controls at 2 weeks. Scaffold-based gene delivery systems capable of localized transgene expression provide a platform for inductive and cell transplantation approaches in regenerative medicine.

Indexed as

Gene Transfer TechniquesTissue ScaffoldsAnimalsDNAElectrophoresis, Agar GelImmunohistochemistryKineticsLuciferasesMaleMiceMice, Inbred C57BLMicroscopy, Electron, ScanningNeovascularization, PhysiologicNucleic Acid ConformationPlasmidsPolyglycolic AcidDNALuciferasesPolyglycolic Acid

Identifiers

PMID18929408
PMCPMC2642007
OpenAlexW1967701728

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.