Evidence map›Paper›PMID 18027240›Full record

ArticleJournal of liposome research2007

"Smart" drug carriers: PEGylated TATp-modified pH-sensitive liposomes.

Amit A Kale, Vladimir P Torchilin

Abstract read
In one paragraph

Article in Journal of liposome research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

43 citing papers in PubMed, 128 citations in OpenAlex.

  1. Review
  2. Review
  3. Liposomes in Cancer Therapy: How Did We Start and Where Are We Now.International journal of molecular sciences · 2023
    Review
  4. Review
  5. Controlled and Targeted Drug Delivery Using Smart Nanovectors.International journal of drug discovery and pharmacology · 2023
    Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. Interrogating Cellular Functions with Designer Janus Particles.Chemistry of materials : a publication of the American Chemical Society · 2017
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Modifications of natural peptides for nanoparticle and drug design.Advances in protein chemistry and structural biology · 2015
    Review
  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

2 authors at 1 institution in 1 country.

Amit A KaleDepartment of Pharmaceutical Sciences and Center for Pharmaceutical Biotechnology and Nanomedicine, Northeastern University, Boston, MA-02115, USA.
Vladimir P Torchilin
Northeastern University · US

Funding

MULTIFUNCTIONAL STIMULI-SENSITIVE PHARMACEUTICAL NANOCARRIERSR01CA121838 · NCI · NORTHEASTERN UNIVERSITY · PI TORCHILIN, VLADIMIR P · 2006 to 2010
$1.4M
NCI NIH HHS R01 CA121838
6 · The paper itself

Abstract

To engineer drug carriers capable of spontaneous accumulation in tumors and ischemic areas via the enhanced permeability and retention (EPR) effect and further penetration and drug delivery inside tumor or ischemic cells via the action of the cell-penetrating peptide (CPP), we have prepared liposomes simultaneously bearing on their surface CPP (TAT peptide, TATp) moieties and protective PEG chains. PEG chains were incorporated into the liposome membrane via the PEG-attached phosphatidylethanolamine (PE) residue with PEG and PE being conjugated with the lowered pH-degradable hydrazone bond (PEG-HZ-PE). Under normal conditions, liposome-grafted PEG "shielded" liposome-attached TATp moieties since the PEG spacer for TATp attachment (PEG(1000)) was shorter than protective PEG(2000). PEGylated liposomes are expected to accumulate in targets via the EPR effect, but inside the "acidified" tumor or ischemic tissues lose their PEG coating due to the lowered pH-induced hydrolysis of HZ and penetrate inside cells via the now-exposed TATp moieties. This concept is shown here to work in cell cultures in vitro as well as in ischemic cardiac tissues in the Langendorff perfused rat heart model and in tumors in experimental mice in vivo.

Indexed as

Drug CarriersHydrogen-Ion ConcentrationLiposomesPolyethylene GlycolsAnimalsCell LineChromatography, AffinityGene Products, tatMiceRatsDrug CarriersGene Products, tatLiposomesPolyethylene Glycols

Identifiers

PMID18027240
PMCPMC3432921
OpenAlexW2134695903

What OpenQuestion holds

Textmetadata
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.