Evidence map›Paper›PMID 27008086›Full record

ArticlePloS one2016

Characterization of a Polyethylene Glycol-Amphotericin B Conjugate Loaded with Free AMB for Improved Antifungal Efficacy.

Tessa Rui Min Tan, Kong Meng Hoi, Peiqing Zhang, Say Kong Ng

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in PloS one, 2016. 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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 29 citations in OpenAlex.

  1. Article
  2. "Click" amphotericin B in prodrug nanoformulations for enhanced systemic fungemia treatment.Journal of controlled release : official journal of the Controlled Release Society · 2024
    Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Branched amphotericin functional poly(Royal Society open science · 2021
    Article
  8. Article
  9. Article
  10. Article
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  12. Article
  13. Article
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 3 institutions in 1 country.

Tessa Rui Min TanBioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
Kong Meng HoiBioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
Peiqing ZhangBioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
Say Kong NgBioprocessing Technology Institute, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
Agency for Science, Technology and Research · SGBioprocessing Technology Institute · SGNational University of Singapore · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Amphotericin B (AMB) is a highly hydrophobic antifungal, whose use is limited by its toxicity and poor solubility. To improve its solubility, AMB was reacted with a functionalized polyethylene glycol (PEG), yielding soluble complex AmB-PEG formulations that theoretically comprise of chemically conjugated AMB-PEG and free AMB that is physically associated with the conjugate. Reverse-phase chromatography and size exclusion chromatography methods using HPLC were developed to separate conjugated AMB-PEG and free AmB, enabling the further characterization of these formulations. Using HPLC and dynamic light scattering analyses, it was observed that the AMB-PEG 2 formulation, having a higher molar ratio of 2 AMB: 1 PEG, possesses more free AMB and has relatively larger particle diameters compared to the AMB-PEG 1 formulation, that consists of 1 AMB: 1 PEG. The identity of the conjugate was also verified using mass spectrometry. AMB-PEG 2 demonstrates improved antifungal efficacy relative to AMB-PEG 1, without a concurrent increase in in vitro toxicity to mammalian cells, implying that the additional loading of free AMB in the AMB-PEG formulation can potentially increase its therapeutic index. Compared to unconjugated AMB, AMB-PEG formulations are less toxic to mammalian cells in vitro, even though their MIC50 values are comparatively higher in a variety of fungal strains tested. Our in vitro results suggest that AMB-PEG 2 formulations are two times less toxic than unconjugated AMB with antifungal efficacy on Candida albicans and Cryptococcus neoformans.

Indexed as

Amphotericin BAntifungal AgentsCandida albicansCell LineChemistry, PharmaceuticalChromatography, GelChromatography, High Pressure LiquidCryptococcus neoformansHEK293 CellsHumansMicrobial Sensitivity TestsParticle SizePolyethylene GlycolsSolubilityAmphotericin BAntifungal AgentsPolyethylene Glycols

Identifiers

PMID27008086
PMCPMC4805162
OpenAlexW2307050372

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.