Evidence map›Paper›PMID 21514659›Full record

ArticleBiomaterials2011

Gene therapy vectors with enhanced transfection based on hydrogels modified with affinity peptides.

Jaclyn A Shepard, Paul J Wesson, Christine E Wang, Alyson C Stevans, Samantha J Holland, Ariella Shikanov, Bartosz A Grzybowski, Lonnie D Shea

Abstract readEvaluation Study
In one paragraph

Article in Biomaterials, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.9field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Engineering peripheral nerve repair.Current opinion in biotechnology · 2013
    Review
  8. Matrix-based gene delivery for tissue repair.Current opinion in biotechnology · 2013
    Review
  9. Review
  10. Hydrogels for lentiviral gene delivery.Expert opinion on drug delivery · 2013
    Review
  11. Article
  12. Article
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

8 authors at 1 institution in 1 country.

Jaclyn A ShepardDepartment of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Tech E136, Evanston, IL 60208, United States.
Paul J Wesson
Christine E Wang
Alyson C Stevans
Samantha J Holland
Ariella Shikanov
Bartosz A Grzybowski
Lonnie D Shea
Northwestern University · US

Funding

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
P30A: Biomaterials Core (6 of 10)PL1EB008542 · NIBIB · NORTHWESTERN UNIVERSITY · PI SHEA, LONNIE D · 2007 to 2011
$2.3M
NIBIB NIH HHS PL1 EB008542NIBIB NIH HHS PL1EB008542NIBIB NIH HHS R01 EB005678NIBIB NIH HHS R01EB005678PHS HHS P30
6 · The paper itself

Abstract

Regenerative strategies for damaged tissue aim to present biochemical cues that recruit and direct progenitor cell migration and differentiation. Hydrogels capable of localized gene delivery are being developed to provide a support for tissue growth, and as a versatile method to induce the expression of inductive proteins; however, the duration, level, and localization of expression is often insufficient for regeneration. We thus investigated the modification of hydrogels with affinity peptides to enhance vector retention and increase transfection within the matrix. PEG hydrogels were modified with lysine-based repeats (K4, K8), which retained approximately 25% more vector than control peptides. Transfection increased 5- to 15-fold with K8 and K4 respectively, over the RDG control peptide. K8- and K4-modified hydrogels bound similar quantities of vector, yet the vector dissociation rate was reduced for K8, suggesting excessive binding that limited transfection. These hydrogels were subsequently applied to an in vitro co-culture model to induce NGF expression and promote neurite outgrowth. K4-modified hydrogels promoted maximal neurite outgrowth, likely due to retention of both the vector and the NGF. Thus, hydrogels modified with affinity peptides enhanced vector retention and increased gene delivery, and these hydrogels may provide a versatile scaffold for numerous regenerative medicine applications.

Indexed as

Gene Transfer TechniquesTransfectionCell LineDNAGanglia, SpinalGenetic TherapyGenetic VectorsHumansHydrogelsModels, TheoreticalNerve Growth FactorNeuritesPeptidesTissue EngineeringDNAHydrogelsNerve Growth FactorPeptides

Identifiers

PMID21514659
PMCPMC3100417
OpenAlexW2117113256

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.