Evidence map›Paper›PMID 21888340›Full record

ArticleBiomacromolecules2011

Effects of base polymer hydrophobicity and end-group modification on polymeric gene delivery.

Joel C Sunshine, Marib I Akanda, David Li, Kristen L Kozielski, Jordan J Green

Open access · greenAbstract read
In one paragraph

Article in Biomacromolecules, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 66 papers.

0numbers the graph read from it
0cells of the map it votes in
66citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

66 citing papers in PubMed, 122 citations in OpenAlex.

  1. Article
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  9. Biomacromolecules · 2025
    Review
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6 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.

Joel C SunshineDepartment of Biomedical Engineering, The Johns Hopkins University School of Medicine, 400 N Broadway/Smith Building Room 5017, Baltimore, Maryland 21231, United States.
Marib I Akanda
David Li
Kristen L Kozielski
Jordan J Green
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007309 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI COX, ANDREA L · 1985 to 2019
$43.2M
T32: Predoctoral and Postdoctoral Training Program in Nanotechnology for Cancer ResearchT32CA153952 · NCI · JOHNS HOPKINS UNIVERSITY · PI Denis Wirtz · 2015 to 2026
$3.5M
T-32 NIH Postdoctoral Training Program in Nanotechnology for Cancer Medicine NTCMT32CA130840 · NCI · JOHNS HOPKINS UNIVERSITY · PI WIRTZ, DENIS · 2008 to 2012
$1.2M
NCI NIH HHS T32 CA130840NCI NIH HHS T32 CA153952NIGMS NIH HHS T32 GM007309
6 · The paper itself

Abstract

A new 320-member polymer library of end-modified poly(β-amino ester)s was synthesized. This library was chosen such that small differences to the structures of component backbone, side-chain, and end-group monomers could be systematically and simultaneously evaluated. The in vitro transfection efficacy and cytotoxicity of DNA nanoparticles formed from this library were assessed. This library approach not only enabled us to synthesize and test a large variety of structures rapidly but also provided us with a robust data set to analyze for the effect of small structural permutations to polymer chain structure. Small changes to the side chains, backbones, and end groups within this polymer library produced dramatic results, with transfection efficacy of CMV-Luc varying over 4 orders in a 96-well plate format. Increasing hydrophobicity of the base polymer backbone and side chain tended to increase transfection efficacy, but the most hydrophobic side chains and backbones showed the least requirement for a hydrophobic pair. Optimal PBAE formulations were superior to commercially available nonviral alternatives FuGENE HD and Lipofectamine 2000, enabling ~3-fold increased luminescence (2.2 × 10(6) RLU/well vs 8.1 × 10(5) RLU/well) and 2-fold increased transfection percentage (76.7% vs 42.9%) as measured by flow cytometry with comparable or reduced toxicity.

Indexed as

Gene Transfer TechniquesAnimalsCell SurvivalChlorocebus aethiopsCOS CellsDNAFlow CytometryGenes, ReporterGenetic TherapyGenetic VectorsHydrophobic and Hydrophilic InteractionsLuciferasesLuminescenceLuminescent MeasurementsNanoparticlesPolymersDNALuciferasesPolymersSmall Molecule Libraries

Identifiers

PMID21888340
PMCPMC3959121
OpenAlexW2046406980

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.