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Core‐Shell DNA‐Cholesterol Nanoparticles Exert Lysosomolytic Activity in African Trypanosomes

Knieß, Robert ; Leeder, Wolf‐Matthias ; Reißig, Paul ; Geyer, Felix Klaus ; Göringer, H. Ulrich (2023)
Core‐Shell DNA‐Cholesterol Nanoparticles Exert Lysosomolytic Activity in African Trypanosomes.
In: ChemBioChem, 2022, 23 (20)
doi: 10.26083/tuprints-00022889
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: Core‐Shell DNA‐Cholesterol Nanoparticles Exert Lysosomolytic Activity in African Trypanosomes
Language: English
Date: 27 November 2023
Place of Publication: Darmstadt
Year of primary publication: 2022
Place of primary publication: Weinheim
Publisher: Wiley-VCH
Journal or Publication Title: ChemBioChem
Volume of the journal: 23
Issue Number: 20
Collation: 10 Seiten
DOI: 10.26083/tuprints-00022889
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

Trypanosoma brucei is the causal infectious agent of African trypanosomiasis in humans and Nagana in livestock. Both diseases are currently treated with a small number of chemotherapeutics, which are hampered by a variety of limitations reaching from efficacy and toxicity complications to drug‐resistance problems. Here, we explore the forward design of a new class of synthetic trypanocides based on nanostructured, core‐shell DNA‐lipid particles. In aqueous solution, the particles self‐assemble into micelle‐type structures consisting of a solvent‐exposed, hydrophilic DNA shell and a hydrophobic lipid core. DNA‐lipid nanoparticles have membrane‐adhesive qualities and can permeabilize lipid membranes. We report the synthesis of DNA‐cholesterol nanoparticles, which specifically subvert the membrane integrity of the T. brucei lysosome, killing the parasite with nanomolar potencies. Furthermore, we provide an example of the programmability of the nanoparticles. By functionalizing the DNA shell with a spliced leader (SL)‐RNA‐specific DNAzyme, we target a second trypanosome‐specific pathway (dual‐target approach). The DNAzyme provides a backup to counteract the recovery of compromised parasites, which reduces the risk of developing drug resistance.

Alternative Abstract:
Alternative AbstractLanguage

The bioengineering of synthetic nanoparticles with therapeutic potential for the treatment of African sleeping sickness is reported. The molecules are DNA-cholesterol amphiphiles, which self-assemble into micelle-type nanoparticles with an exterior DNA shell and a lipid core. The particles are constructed to attack two parasite-specific targets thereby reducing the risk of developing drug resistance.

English
Uncontrolled Keywords: African trypanosomes, chemotherapeutics, DNAzymes, DNA nanoparticles, drug design
Identification Number: e202200410
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-228897
Additional Information:

A previous version of this manuscript has been deposited on a preprint server (https://doi.org/10.1101/2022.07.18.500428).

Classification DDC: 500 Science and mathematics > 540 Chemistry
500 Science and mathematics > 570 Life sciences, biology
Divisions: 10 Department of Biology > Molecular Genetics
Date Deposited: 27 Nov 2023 14:10
Last Modified: 05 Jan 2024 08:27
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/22889
PPN: 514469269
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