Evidence map›Paper›PMID 29600438›Full record

ArticlePharmaceutical research2018

Functionalization of PLGA Nanoparticles with 1,3-β-glucan Enhances the Intracellular Pharmacokinetics of Rifampicin in Macrophages.

Matshawandile Tukulula, Luis Gouveia, Paulo Paixao, Rose Hayeshi, Brendon Naicker, Admire Dube

Open access · greenAbstract read
In one paragraph

Article in Pharmaceutical research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.2field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
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  3. Article
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  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Article
  14. The Macrophage Response toFrontiers in cellular and infection microbiology · 2020
    Review
  15. Article
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

6 authors at 5 institutions in 2 countries.

Matshawandile TukululaDepartment of Chemistry, Tshwane University of Technology, Pretoria, South Africa.
Luis GouveiaResearch Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa,, Lisbon, Portugal.
Paulo PaixaoResearch Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa,, Lisbon, Portugal.
Rose HayeshiDST/NWU Preclinical Drug Development Platform, North-West University,, Potchefstroom, South Africa.
Brendon NaickerCouncil for Scientific and Industrial Research, Polymers and Composites, Pretoria, South Africa.
Admire DubeDiscipline of Pharmaceutics, School of Pharmacy, University of the Western Cape,, Bellville, 7535, South Africa. adube@uwc.ac.za.ORCID http://orcid.org/0000-0002-5684-6094
University of Lisbon · PTCouncil for Scientific and Industrial Research · ZANorth-West University · ZATshwane University of Technology · ZAUniversity of the Western Cape · ZA

Funding

Development of Nanomedicines for Tuberculosis TreatmentK43TW010371 · FIC · UNIVERSITY OF THE WESTERN CAPE · PI DUBE, ADMIRE · 2017 to 2021
$370k
Council for Scientific and Industrial Research YREF 2013 011FIC NIH HHS K43 TW010371National Research Foundation 109059
6 · The paper itself

Abstract

purposeMycobacterium tuberculosis which causes tuberculosis, is primarily resident within macrophages. 1,3-β-glucan has been proposed as a ligand to target drug loaded nanoparticles (NPs) to macrophages. In this study we characterized the intracellular pharmacokinetics of the anti-tubercular drug rifampicin delivered by 1,3-β-glucan functionalized PLGA NPs (Glu-PLGA). We hypothesized that Glu-PLGA NPs would be taken up at a faster rate than PLGA NPs, and consequently deliver higher amounts of rifampicin into the macrophages.

methodsCarbodiimide chemistry was employed to conjugate 1,3-β-glucan and rhodamine to PLGA. Rifampicin loaded PLGA and Glu-PLGA NPs as well as rhodamine functionalized PLGA and Glu-PLGA NPs were synthesized using an emulsion solvent evaporation technique. Intracellular pharmacokinetics of rifampicin and NPs were evaluated in THP-1 derived macrophages. A pharmacokinetic model was developed to describe uptake, and modelling was performed using ADAPT 5 software.

resultsThe NPs increased the rate of uptake of rifampicin by a factor of 17 and 62 in case of PLGA and Glu-PLGA, respectively. Expulsion of NPs from the macrophages was also observed, which was 3 fold greater for Glu-PLGA NPs than for PLGA NPs. However, the ratio of uptake to expulsion was similar for both NPs. After 24 h, the amount of rifampicin delivered by the PLGA and Glu-PLGA NPs was similar. The NPs resulted in at least a 10-fold increase in the uptake of rifampicin.

conclusionsFunctionalization of PLGA NPs with 1,3-β-glucan resulted in faster uptake of rifampicin into macrophages. These NPs may be useful to achieve rapid intracellular eradication of Mycobacterium tuberculosis.

Indexed as

Antibiotics, Antitubercularbeta-GlucansCell Culture TechniquesCell LineDrug CarriersDrug CompoundingHumansMacrophagesModels, BiologicalMycobacterium tuberculosisNanoparticlesPolylactic Acid-Polyglycolic Acid CopolymerRifampinTuberculosisAntibiotics, Antitubercularbeta-1,3-glucanbeta-GlucansDrug CarriersPolylactic Acid-Polyglycolic Acid CopolymerRifampin1,3-β-glucannanoparticle drug deliverypharmacokinetic modellingPLGA nanoparticlesrifampicin intracellular concentrations

Identifiers

PMID29600438
PMCPMC6362828
OpenAlexW2794863208

What OpenQuestion holds

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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.