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Green Algae as a Drug Delivery System for the Controlled Release of Antibiotics


Shchelik, Inga S; Sieber, Simon; Gademann, Karl (2020). Green Algae as a Drug Delivery System for the Controlled Release of Antibiotics. Chemistry - A European Journal, 26(70):16644-16648.

Abstract

New strategies to efficiently treat bacterial infections are crucial to circumvent the increase of resistant strains and to mitigate side effects during treatment. Skin and soft tissue infections represent one of the areas suffering the most from these resistant strains. We developed a new drug delivery system composed of the green algae, Chlamydomonas reinhardtii, which is generally recognized as safe, to target specifically skin diseases. A two‐step functionalization strategy was used to chemically modify the algae with the antibiotic vancomycin. Chlamydomonas reinhardtii was found to mask vancomycin and the insertion of a photocleavable linker was used for the release of the antibiotic. This living drug carrier was evaluated in presence of Bacillus subtilis and, only upon UVA1‐mediated release, growth inhibition of bacteria was observed. These results represent one of the first examples of a living organism used as a drug delivery system for the release of an antibiotic by UVA1‐irradiation.

Abstract

New strategies to efficiently treat bacterial infections are crucial to circumvent the increase of resistant strains and to mitigate side effects during treatment. Skin and soft tissue infections represent one of the areas suffering the most from these resistant strains. We developed a new drug delivery system composed of the green algae, Chlamydomonas reinhardtii, which is generally recognized as safe, to target specifically skin diseases. A two‐step functionalization strategy was used to chemically modify the algae with the antibiotic vancomycin. Chlamydomonas reinhardtii was found to mask vancomycin and the insertion of a photocleavable linker was used for the release of the antibiotic. This living drug carrier was evaluated in presence of Bacillus subtilis and, only upon UVA1‐mediated release, growth inhibition of bacteria was observed. These results represent one of the first examples of a living organism used as a drug delivery system for the release of an antibiotic by UVA1‐irradiation.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Department of Chemistry
Dewey Decimal Classification:540 Chemistry
Scopus Subject Areas:Physical Sciences > Catalysis
Physical Sciences > Organic Chemistry
Uncontrolled Keywords:General Chemistry
Language:English
Date:15 December 2020
Deposited On:20 Jan 2021 06:08
Last Modified:26 Jan 2021 20:50
Publisher:Wiley-VCH Verlag
ISSN:0947-6539
OA Status:Hybrid
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1002/chem.202003821
PubMed ID:32910832
Project Information:
  • : FunderSNSF
  • : Grant ID200021_182043
  • : Project TitleMechanism-Based Design, Synthesis, Biological Evaluation, and Delivery of Next-Generation Antibiotics

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