Evidence map›Paper›PMID 25184545›Full record

ArticleJournal of the American Chemical Society2014

The disaccharide moiety of bleomycin facilitates uptake by cancer cells.

Benjamin R Schroeder, M Imran Ghare, Chandrabali Bhattacharya, Rakesh Paul, Zhiqiang Yu, Paul A Zaleski, Trevor C Bozeman, Michael J Rishel, Sidney M Hecht

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the American Chemical Society, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
10.2field-weighted citation impact, top 1% 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

29 citing papers in PubMed, 112 citations in OpenAlex.

  1. Review
  2. Formation and cellular uptake of Bleomycin saccharide decorated molecular spherical nucleic acids evaluated by time-resolved fluorescence spectroscopy.Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology · 2026
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  15. The DNA sequence specificity of bleomycin cleavage in a systematically altered DNA sequence.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2017
    Article
  16. NMR study of the effects of some bleomycin C-termini on the structure of a DNA hairpin with the 5'-GC-3' binding site.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2017
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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

9 authors at 4 institutions in 1 country.

Benjamin R SchroederDepartment of Chemistry, University of Virginia , Charlottesville, Virginia 22904, United States.
M Imran Ghare
Chandrabali Bhattacharya
Rakesh Paul
Zhiqiang Yu
Paul A Zaleski
Trevor C Bozeman
Michael J Rishel
Sidney M Hecht
BioEnergetics (United States) · USArizona State University · USGE Global Research (United States) · USUniversity of Virginia · US

Funding

Molecular Recognition by BleomycinR01CA140471 · NCI · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI HECHT, SIDNEY M. · 2010 to 2014
$1.5M
NCI NIH HHS CA140471NCI NIH HHS R01 CA140471
6 · The paper itself

Abstract

The disaccharide moiety is responsible for the tumor cell targeting properties of bleomycin (BLM). While the aglycon (deglycobleomycin) mediates DNA cleavage in much the same fashion as bleomycin, it exhibits diminished cytotoxicity in comparison to BLM. These findings suggested that BLM might be modular in nature, composed of tumor-seeking and tumoricidal domains. To explore this possibility, BLM analogues were prepared in which the disaccharide moiety was attached to deglycobleomycin at novel positions, namely, via the threonine moiety or C-terminal substituent. The analogues were compared with BLM and deglycoBLM for DNA cleavage, cancer cell uptake, and cytotoxic activity. BLM is more potent than deglycoBLM in supercoiled plasmid DNA relaxation, while the analogue having the disaccharide on threonine was less active than deglycoBLM and the analogue containing the C-terminal disaccharide was slightly more potent. While having unexceptional DNA cleavage potencies, both glycosylated analogues were more cytotoxic to cultured DU145 prostate cancer cells than deglycoBLM. Dye-labeled conjugates of the cytotoxic BLM aglycons were used in imaging experiments to determine the extent of cell uptake. The rank order of internalization efficiencies was the same as their order of cytotoxicities toward DU145 cells. These findings establish a role for the BLM disaccharide in tumor targeting/uptake and suggest that the disaccharide moiety may be capable of delivering other cytotoxins to cancer cells. While the mechanism responsible for uptake of the BLM disaccharide selectively by tumor cells has not yet been established, data are presented which suggest that the metabolic shift to glycolysis in cancer cells may provide the vehicle for selective internalization.

Indexed as

BleomycinCell LineCell SurvivalDisaccharidesDNA CleavageDose-Response Relationship, DrugHumansMaleMolecular StructureProstatic NeoplasmsStructure-Activity RelationshipBleomycinDisaccharides

Identifiers

PMID25184545
PMCPMC4183664
OpenAlexW2334810522

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.