Evidence map›Paper›PMID 19341312›Full record

ArticleMolecular pharmaceutics

Hydrophobic moiety of cationic lipids strongly modulates their transfection activity.

Rumiana Koynova, Boris Tenchov, Li Wang, Robert C Macdonald

Abstract read
In one paragraph

Article in Molecular pharmaceutics. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.2field-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

21 citing papers in PubMed, 95 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Review
  6. Charge-Conversion Strategies for Nucleic Acid Delivery.Advanced functional materials · 2021
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Cubic phases in membrane lipids.European biophysics journal : EBJ · 2012
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 2 institutions in 2 countries.

Rumiana KoynovaDeptartment of Biochemistry, Molecular Biology and Cell Biology, Northwestern University, Evanston, IL 60208, USA. rkoynova@gmail.com
Boris Tenchov
Li Wang
Robert C Macdonald
Bulgarian Academy of Sciences · BGNorthwestern University · US

Funding

X-RAY STUDIES OF NEUROFIBRILLARY TANGLES IN ALZHEIMER'S DISEASE BRAIN TISSUEP41RR008630 · NCRR · ILLINOIS INSTITUTE OF TECHNOLOGY · PI IRVING, THOMAS C · 2001 to 2011
$14.4M
NCRR NIH HHS P41 RR008630
6 · The paper itself

Abstract

Synthetic cationic lipids are widely used components of nonviral gene carriers, and the factors regulating their transfection efficiency are the subject of considerable interest. In view of the important role that electrostatic interactions with the polyanionic nucleic acids play in formation of lipoplexes, a common empirical approach to improving transfection has been the synthesis and testing of amphiphiles with new versions of positively charged polar groups, while much less attention has been given to the role of the hydrophobic lipid moieties. On the basis of data for approximately 20 cationic phosphatidylcholine (PC) derivatives, here we demonstrate that hydrocarbon chain variations of these lipids modulate by over 2 orders of magnitude their transfection efficiency. The observed molecular structure-activity relationship manifests in well-expressed dependences of activity on two important molecular characteristics, chain unsaturation and total number of carbon atoms in the lipid chains, which is representative of the lipid hydrophobic volume and hydrophilic-lipophilic ratio. Transfection increases with decrease of chain length and increase of chain unsaturation. Maximum transfection was found for cationic PCs with monounsaturated 14:1 chains. It is of particular importance that the high-transfection lipids strongly promote cubic phase formation in zwitterionic membrane phosphatidylethanolamine (PE). These remarkable correlations point to an alternative, chain-dependent process in transfection, not related to the electrostatic cationic-anionic lipid interactions.

Indexed as

Cell LineHumansHydrophobic and Hydrophilic InteractionsMolecular StructurePhosphatidylcholinesPhosphatidylethanolaminesStructure-Activity RelationshipTransfectionX-Ray DiffractionPhosphatidylcholinesphosphatidylethanolaminePhosphatidylethanolamines

Identifiers

PMID19341312
PMCPMC3014849
OpenAlexW1980906223

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.