Evidence map›Paper›PMID 29528624›Full record

ArticleBioconjugate chemistry2018

Quantitation and Stability of Protein Conjugation on Liposomes for Controlled Density of Surface Epitopes.

Zhilin Chen, James J Moon, Wei Cheng

Erratum issuedAbstract read
In one paragraph

Article in Bioconjugate chemistry, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

24 citing papers in PubMed, 31 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Zhilin ChenDepartment of Pharmaceutical Sciences , 428 Church Street , University of Michigan , Ann Arbor , Michigan 48109 , United States.
James J MoonDepartment of Pharmaceutical Sciences , 428 Church Street , University of Michigan , Ann Arbor , Michigan 48109 , United States.ORCID 0000-0003-2238-2372
Wei ChengDepartment of Pharmaceutical Sciences , 428 Church Street , University of Michigan , Ann Arbor , Michigan 48109 , United States.ORCID 0000-0003-0332-1566
University of Michigan · US

Funding

Single Cell with One Particle Entry (SCOPE) for Study of HIV InfectionDP2OD008693 · OD · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI CHENG, WEI · 2011 to 2012
$2.5M
NIH HHS DP2 OD008693
6 · The paper itself

Abstract

The number and spacing of B-cell epitopes on antigens have a profound impact on the activation of B cells and elicitation of antibody responses, the quantitative aspects of which may be utilized for rational design of vaccines. Ni-chelating liposomes have been widely used as protein carriers in experimental studies of vaccine delivery, owing to the convenience and versatility of this conjugation chemistry. However, the epitope number per particle as well as the stability of protein conjugation on liposomes remain far less characterized. Here we have developed quantitative methods to measure the average spatial density of proteins on liposomes using both ensemble and single-molecule techniques and demonstrated their utility using liposomes conjugated with native proteins of two different sizes. These studies revealed that the initial density of protein conjugation on Ni-chelating liposomes can be finely controlled, but the density can decrease over time upon dilution due to the noncovalent nature of Ni-chelation chemistry. These results indicate that an alternative method other than the Ni-chelation chemistry is needed for stable conjugation of epitopes onto liposomes and also suggest a general strategy that can be used to precisely regulate the epitope density on liposomes for B-cell antigen delivery.

Indexed as

Bacterial ProteinsChelating AgentsEpitopesLiposomesLuminescent ProteinsNickelProtein DomainsProtein StabilityRecombinant ProteinsSurface PropertiesBacterial ProteinsChelating AgentsEpitopesIgG Fc-binding protein, StreptococcusLiposomesLuminescent ProteinsNickelRecombinant Proteins

Identifiers

PMID29528624
PMCPMC6918458
OpenAlexW2792523572

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.