Evidence map›Paper›PMID 26742886›Full record

ArticleScientific reports2016

Thermodynamics and kinetics of amphotericin B self-association in aqueous solution characterized in molecular detail.

Joanna Zielińska, Miłosz Wieczór, Tomasz Bączek, Marcin Gruszecki, Jacek Czub

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

13 citing papers in PubMed, 36 citations in OpenAlex.

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  4. AmBisomePharmaceutics · 2024
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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

5 authors at 2 institutions in 1 country.

Joanna ZielińskaDepartment of Pharmaceutical Chemistry, Medical University of Gdańsk, Gdańsk, Poland.
Miłosz WieczórDepartment of Physical Chemistry, Gdańsk University of Technology, Gdańsk, Poland.
Tomasz BączekDepartment of Pharmaceutical Chemistry, Medical University of Gdańsk, Gdańsk, Poland.
Marcin GruszeckiDepartment of Radiological Informatics and Statistics, Medical University of Gdańsk, Gdańsk, Poland.
Jacek CzubDepartment of Physical Chemistry, Gdańsk University of Technology, Gdańsk, Poland.
Gdańsk Medical University · PLGdańsk University of Technology · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amphotericin B (AmB) is a potent but toxic drug commonly used to treat systemic mycoses. Its efficiency as a therapeutic agent depends on its ability to discriminate between mammalian and fungal cell membranes. The association of AmB monomers in an aqueous environment plays an important role in drug selectivity, as oligomers formed prior to membrane insertion - presumably dimers - are believed to act differently on fungal (ergosterol-rich) and mammalian (cholesterol-rich) membranes. In this work, we investigate the initial steps of AmB self-association by studying the structural, thermodynamic and spectral properties of AmB dimers in aqueous medium using molecular dynamics simulations. Our results show that in water, the hydrophobic aggregation of AmB monomers yields almost equiprobable populations of parallel and antiparallel dimers that rapidly interconvert into each other, and the dipole-dipole interaction between zwitterionic head groups plays a minor role in determining the drug's tendency for self-aggregation. A simulation of circular dichroism (CD) spectra indicates that in experimental measurements, the signature CD spectrum of AmB aggregates should be attributed to higher-order oligomers rather than dimers. Finally, we suggest that oligomerization can impair the selectivity of AmB molecules for fungal membranes by increasing their hydrophobic drive for non-specific membrane insertion.

Indexed as

Amphotericin BAntifungal AgentsBiological TransportCell MembraneCholesterolCircular DichroismErgosterolFungiHumansHydrophobic and Hydrophilic InteractionsKineticsLipid BilayersMolecular Dynamics SimulationSolutionsSpecies SpecificityStatic ElectricityAmphotericin BAntifungal AgentsCholesterolErgosterolLipid BilayersSolutionsWater

Identifiers

PMID26742886
PMCPMC4705489
OpenAlexW2226150995

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.