Evidence map›Paper›PMID 20043962›Full record

ArticleJournal of controlled release : official journal of the Controlled Release Society2010

Endocytic uptake of a large array of HPMA copolymers: Elucidation into the dependence on the physicochemical characteristics.

Jihua Liu, Hillevi Bauer, Jon Callahan, Pavla Kopecková, Huaizhong Pan, Jindrich Kopecek

Abstract read
In one paragraph

Article in Journal of controlled release : official journal of the Controlled Release Society, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Polymer nanomedicines.Advanced drug delivery reviews · 2020
    Review
  4. Article
  5. Article
  6. Design of smart HPMA copolymer-based nanomedicines.Journal of controlled release : official journal of the Controlled Release Society · 2016
    Review
  7. Article
  8. POLYMERIC BIOMATERIALS AND NANOMEDICINES.Journal of drug delivery science and technology · 2015
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Combination cytotoxicity of backbone degradable HPMA copolymer gemcitabine and platinum conjugates toward human ovarian carcinoma cells.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2014
    Article
  15. Article
  16. Article
  17. Article
  18. 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

6 authors.

Jihua LiuDepartment of Pharmaceutics and Pharmaceutical Chemistry/CCCD, University of Utah, Salt Lake City, UT 84112, USA.
Hillevi Bauer
Jon Callahan
Pavla Kopecková
Huaizhong Pan
Jindrich Kopecek

Funding

DOUBLE-TARGETED MACROMOLECULAR THERAPEUTICS FOR THE TREATMENT OF PROSTATE CANCERR01CA132831 · NCI · UNIVERSITY OF UTAH · PI KOPECEK, JINDRICH H. · 2008 to 2012
$1.5M
NCI NIH HHS CA132831NCI NIH HHS R01 CA132831
6 · The paper itself

Abstract

Endocytic uptake and subcellular trafficking of a large array of HPMA (N-(2-hydroxypropyl)methacrylamide) based copolymers possessing positively or negatively charged residues, or hydrophobic groups were evaluated by flow cytometry and living cell confocal microscopy in cultured prostate cancer cells. The degrees of cellular uptake of various copolymer fractions with narrow polydispersities were quantified. The copolymer charge was the predominant physicochemical feature in terms of cellular uptake. Fast and efficient uptake occurred in positively charged copolymers due to non-specific adsorptive endocytosis, whereas slow uptake of negatively charged copolymers was observed. The uptake of copolymers was also molecular weight dependent. The copolymers were internalized into the cells through multiple endocytic pathways: positively charged copolymers robustly engaged clathrin-mediated endocytosis, macropinocytosis and dynamin-dependent endocytosis, while weakly negatively charged copolymers weakly employed these pathways; strongly negatively charged copolymers only mobilized macropinocytosis. HPMA copolymer possessing 4 mol% of moderately hydrophobic functional groups did not show preferential uptake. All copolymers ultimately localized in late endosomes/lysosomes via early endosomes; with varying kinetics among the copolymers. This study indicates that cell entry and subsequent intracellular trafficking of polymeric drug carriers are strongly dependent on the physicochemical characteristics of the nanocarrier, such as charge and molecular weight.

Indexed as

Drug CarriersEndocytosisAcrylamidesBiological TransportCell Line, TumorChemistry, PharmaceuticalChromatography, GelClathrinEndosomesFlow CytometryHumansHydrophobic and Hydrophilic InteractionsKineticsMaleMicroscopy, ConfocalMolecular StructureAcrylamidesClathrinDrug CarriersN-(2-hydroxypropyl)methacrylamiderab GTP-Binding Proteins

Identifiers

PMID20043962
PMCPMC2840071

What OpenQuestion holds

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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.