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Arezki Y, Harmouch E, Delalande F, Rapp M, Schaeffer-Reiss C, Galli O, Cianférani S, Lebeau L, Pons F, Ronzani C. The interplay between lysosome, protein corona and biological effects of cationic carbon dots: Role of surface charge titratability. Int J Pharm 2023; 645:123388. [PMID: 37683981 DOI: 10.1016/j.ijpharm.2023.123388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/07/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
Carbon dots (CDs) are nanoparticles (NPs) with potential applications in the biomedical field. When in contact with biological fluids, most NPs are covered by a protein corona. As well, upon cell entry, most NP are sequestered in the lysosome. However, the interplay between the lysosome, the protein corona and the biological effects of NPs is still poorly understood. In this context, we investigated the role of the lysosome in the toxicological responses evoked by four cationic CDs exhibiting protonatable or non-protonatable amine groups at their surface, and the associated changes in the CD protein corona. The four CDs accumulated in the lysosome and led to lysosomal swelling, loss lysosome integrity, cathepsin B activation, NLRP3 inflammasome activation, and cell death by pyroptosis in a human macrophage model, but with a stronger effect for CDs with titratable amino groups. The protein corona formed around CDs in contact with serum partially dissociated under lysosomal conditions with subsequent protein rearrangement, as assessed by quantitative proteomic analysis. The residual protein corona still contained binding proteins, catalytic proteins, and proteins involved in the proteasome, glycolysis, or PI3k-Akt KEGG pathways, but with again a more pronounced effect for CDs with titratable amino groups. These results demonstrate an interplay between lysosome, protein corona and biological effects of cationic NPs in link with the titratability of NP surface charges.
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Affiliation(s)
- Yasmin Arezki
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France
| | - Ezeddine Harmouch
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France
| | - François Delalande
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC, UMR 7178, CNRS-Université de Strasbourg, Strasbourg, France; Infrastructure Nationale de Protéomique ProFI - FR2048 CNRS, Strasbourg, France
| | - Mickaël Rapp
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France
| | - Christine Schaeffer-Reiss
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC, UMR 7178, CNRS-Université de Strasbourg, Strasbourg, France; Infrastructure Nationale de Protéomique ProFI - FR2048 CNRS, Strasbourg, France
| | - Ophélie Galli
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France
| | - Sarah Cianférani
- Laboratoire de Spectrométrie de Masse BioOrganique, IPHC, UMR 7178, CNRS-Université de Strasbourg, Strasbourg, France; Infrastructure Nationale de Protéomique ProFI - FR2048 CNRS, Strasbourg, France
| | - Luc Lebeau
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France
| | - Françoise Pons
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France
| | - Carole Ronzani
- Laboratoire de Conception et Application de Molécules Bioactives, UMR 7199, CNRS-Université de Strasbourg, Illkirch, France.
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Lehner R, Zanoni I, Banuscher A, Costa AL, Rothen-Rutishauser B. Fate of engineered nanomaterials at the human epithelial lung tissue barrier in vitro after single and repeated exposures. FRONTIERS IN TOXICOLOGY 2022; 4:918633. [PMID: 36185318 PMCID: PMC9524228 DOI: 10.3389/ftox.2022.918633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
The understanding of the engineered nanomaterials (NMs) potential interaction with tissue barriers is important to predict their accumulation in cells. Herein, the fate, e.g., cellular uptake/adsorption at the cell membrane and translocation, of NMs with different physico-chemical properties across an A549 lung epithelial tissue barrier, cultured on permeable transwell inserts, were evaluated. We assessed the fate of five different NMs, known to be partially soluble, bio-persistent passive and bio-persistent active. Single exposure measurements using 100 µg/ml were performed for barium sulfate (BaSO4), cerium dioxide (CeO2), titanium dioxide (TiO2), and zinc oxide (ZnO) NMs and non-nanosized crystalline silica (DQ12). Elemental distribution of the materials in different compartments was measured after 24 and 80 h, e.g., apical, apical wash, intracellular and basal, using inductively coupled plasma optical emission spectrometry. BaSO4, CeO2, and TiO2 were mainly detected in the apical and apical wash fraction, whereas for ZnO a significant fraction was detected in the basal compartment. For DQ12 the major fraction was found intracellularly. The content in the cellular fraction decreased from 24 to 80 h incubation for all materials. Repeated exposure measurements were performed exposing the cells on four subsequent days to 25 µg/ml. After 80 h BaSO4, CeO2, and TiO2 NMs were again mainly detected in the apical fraction, ZnO NMs in the apical and basal fraction, while for DQ12 a significant concentration was measured in the cell fraction. Interestingly the cellular fraction was in a similar range for both exposure scenarios with one exception, i.e., ZnO NMs, suggesting a potential different behavior for this material under single exposure and repeated exposure conditions. However, we observed for all the NMs, a decrease of the amount detected in the cellular fraction within time, indicating NMs loss by cell division, exocytosis and/or possible dissolution in lysosomes. Overall, the distribution of NMs in the compartments investigated depends on their composition, as for inert and stable NMs the major fraction was detected in the apical and apical wash fraction, whereas for partially soluble NMs apical and basal fractions were almost similar and DQ12 could mainly be found in the cellular fraction.
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Affiliation(s)
- Roman Lehner
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | - Ilaria Zanoni
- CNR-ISTEC-National Research Council of Italy, Institute of Science and Technology for Ceramics, Faenza, Ravenna, Italy
| | - Anne Banuscher
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | - Anna Luisa Costa
- CNR-ISTEC-National Research Council of Italy, Institute of Science and Technology for Ceramics, Faenza, Ravenna, Italy
| | - Barbara Rothen-Rutishauser
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
- *Correspondence: Barbara Rothen-Rutishauser,
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