Evidence map›Paper›PMID 24361461›Full record

ArticleEuropean journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V2014

The development of orally administrable gemcitabine prodrugs with D-enantiomer amino acids: enhanced membrane permeability and enzymatic stability.

Yasuhiro Tsume, Tuba Incecayir, Xueqin Song, John M Hilfinger, Gordon L Amidon

Abstract read
In one paragraph

Article in European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.3field-weighted citation impact, top 20% 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

15 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Amino Acids in the Development of Prodrugs.Molecules (Basel, Switzerland) · 2018
    Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Eradication ofFrontiers in microbiology · 2016
    Article
  15. 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

5 authors at 2 institutions in 2 countries.

Yasuhiro TsumeDepartment of Pharmaceutical Science, University of Michigan, Ann Arbor, MI, USA.
Tuba IncecayirDepartment of Pharmaceutical Technology, Gazi University, Etiler-Ankara, Turkey.
Xueqin SongHospira, Inc., Lake Forest, IL, USA.
John M HilfingerTSRL, Inc., Ann Arbor, MI, USA.
Gordon L AmidonDepartment of Pharmaceutical Science, University of Michigan, Ann Arbor, MI, USA. Electronic address: glamidon@umich.edu.
University of Michigan–Ann Arbor · USGazi University · TR

Funding

USE OF MUCCOSAL CELL CARRIERS/EYZYMES IN ORAL ABSORPTIONR01GM037188 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI AMIDON, GORDON L · 1986 to 2013
$4.4M
NIGMS NIH HHS 2R01GM037188NIGMS NIH HHS R01 GM037188
6 · The paper itself

Abstract

Gemcitabine prodrugs with D- and L-configuration amino acids were synthesized and their chemical stability in buffers, resistance to glycosidic bond metabolism, enzymatic activation, permeability in Caco-2 cells and mouse intestinal membrane, anti-proliferation activity in cancer cell were determined and compared to that of parent drug, gemcitabine. Prodrugs containing D-configuration amino acids were enzymatically more stable than ones with L-configuration amino acids. The activation of all gemcitabine prodrugs was 1.3-17.6-fold faster in cancer cell homogenate than their hydrolysis in buffer, suggesting enzymatic action. The enzymatic activation of amino acid monoester prodrugs containing D-configuration amino acids in cell homogenates was 2.2-10.9-fold slower than one of amino acid monoester prodrugs with L-configuration amino acids. All prodrugs exhibited enhanced resistance to glycosidic bond metabolism by thymidine phosphorylase compared to parent gemcitabine. Gemcitabine prodrugs showed superior the effective permeability in mouse jejunum to gemcitabine. More importantly, the high plasma concentration of d-amino acid gemcitabine prodrugs was observed more than one of L-amino acid gemcitabine prodrugs. In general, the 5'-mono-amino acid monoester gemcitabine prodrugs exhibited higher permeability and uptake than their parent drug, gemcitabine. Cell proliferation assays in AsPC-1 pancreatic ductal cell line indicated that gemcitabine prodrugs were more potent than their parent drug, gemcitabine. The transport and enzymatic profiles of 5'-D-valyl-gemcitabine and 5'-D-phenylalanyl-gemcitabine suggest their potential for increased oral uptake and delayed enzymatic bioconversion as well as enhanced uptake and cytotoxic activity in cancer cells, would facilitate the development of oral dosage form for anti-cancer agents and, hence, improve the quality of life for the cancer patients.

Indexed as

Administration, OralAmino AcidsAnimalsAntimetabolites, AntineoplasticCaco-2 CellsCell Membrane PermeabilityDeoxycytidineEnzyme StabilityFemaleGemcitabineHumansMiceMice, Inbred BALB CProdrugsStereoisomerismAmino AcidsAntimetabolites, AntineoplasticDeoxycytidineGemcitabineProdrugsAmino acidMonoester gemcitabine prodrugsMouse in situ perfusionPermeabilityStabilityUnnatural form

Identifiers

PMID24361461
PMCPMC4243704
OpenAlexW2013275409

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.