Evidence map›Paper›PMID 19857534›Full record

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

PEGylation of bacterial cocaine esterase for protection against protease digestion and immunogenicity.

Jun-Beom Park, Young Min Kwon, Tien-Yi Lee, Remy Brim, Mei-Chuan Ko, Roger K Sunahara, James H Woods, Victor C Yang

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
1.9field-weighted citation impact, top 15% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

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  9. Infusion of imaging and therapeutic molecules into the plant virus-based carrier cowpea mosaic virus: cargo-loading and delivery.Journal of controlled release : official journal of the Controlled Release Society · 2013
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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

8 authors at 1 institution in 1 country.

Jun-Beom ParkDepartment of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109-1065, United States.
Young Min Kwon
Tien-Yi Lee
Remy Brim
Mei-Chuan Ko
Roger K Sunahara
James H Woods
Victor C Yang
University of Michigan–Ann Arbor · US

Funding

PTD-Mediated Protein or Drug Delivery for Cancer TherapyR01CA114612 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI YANG, VICTOR C · 2005 to 2015
$2.5M
RBC_Encapsulated Asparaginase for Enhanced Acute Lymphoblastic Leukemia TherapyR43CA135969 · NCI · INDUSTRIAL SCIENCE & TECHNOLOGY NETWORK · PI DAVID, ALLAN E. · 2008 to 2008
$124k
NCI NIH HHS R01 CA114612NCI NIH HHS R43 CA135969NIDA NIH HHS DA021414
6 · The paper itself

Abstract

Enhancing cocaine metabolism by administration of cocaine esterase (CocE) has been considered as a promising treatment strategy for cocaine overdose and addiction, as CocE is the most efficient native enzyme yet identified for metabolizing the naturally occurring cocaine. A major obstacle to the clinical application of CocE, however, lies in its thermo-instability, rapid degradation by circulating proteases, and potential immunogenicity. PEGylation, namely by modifying a protein or peptide compound via attachment of polyethylene glycol (PEG) chains, has been proven to overcome such problems and was therefore exploited in this CocE investigation. The PEG-CocE conjugates prepared in this study showed a purity of greater than 93.5%. Attachment of PEG to CocE apparently inhibited the binding of anti-CocE antibodies to the conjugate, as demonstrated by the enzyme-linked immunosorbent assay (ELISA) assay. In addition, PEGylation yielded protection to CocE against thermal degradation and protease digestion. Furthermore, preliminary in vivo results suggested that, similarly to native CocE, the PEG-CocE conjugates were able to protect animals from cocaine-induced toxic effects. Overall, this study provides evidence that the PEGylation may serve as a tool to prolong CocE functionality in the circulation and reduce its potential immunogenicity.

Indexed as

AnimalsCarboxylic Ester HydrolasesCocaineCocaine-Related DisordersEnzyme StabilityMaleMicePolyethylene GlycolsRhodococcusTemperatureTrypsinCarboxylic Ester HydrolasesCocainecocaine esterasePolyethylene GlycolsTrypsin

Identifiers

PMID19857534
PMCPMC2824037
OpenAlexW2071062403

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.