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Park KY, Kim MS, Oh N. Cytotoxicity of amine-modified polystyrene MPs and NPs on neural stem cells cultured from mouse subventricular zone. Heliyon 2024; 10:e30518. [PMID: 38770330 PMCID: PMC11103427 DOI: 10.1016/j.heliyon.2024.e30518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/22/2024] Open
Abstract
Microplastics (MPs) and nanoplastics (NPs) are found in various environments such as aquatic, terrestrial, and aerial areas. Once ingested and inhaled, these tiny plastic debris damaged the digestive and respiratory organ systems in animals. In humans, the possible connection between MPs and various diseases such as lung diseases has been raised. Yet, the impact of MPs on the human nervous system has been unclear. Previous research using animals and cultured cells showed possible neurotoxicity of MPs and NPs. In this study, we used neural stem cells cultured from mouse subventricular zone to examine the effects of polystyrene (PS) NPs and MPs with sizes of 0.1 μm, 1 μm, and 2 μm on the cell proliferation and differentiation. We observed that only positively charged NPs and MPs, but not negatively charged ones, decreased cell viability and proliferation. These amine-modified NPs and MPs decreased both neurogenesis and oligodendrogenesis. Finally, fully differentiated neurons and oligodendrocytes were damaged and removed by the application of NPs and MPs. All these effects varied among different sizes of NPs and MPs, with the greatest effects from 1 μm and the least effects from 2 μm. These results clearly demonstrate the cytotoxicity and neurotoxicity of PS-NPs and MPs.
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Affiliation(s)
- Ki-Youb Park
- Department of Chemistry and Biology, Korea Science Academy of KAIST, 105-47 Baegyanggwanmun-ro, Busanjin-Gu, Busan, 47162, South Korea
| | - Man Su Kim
- College of Pharmacy, Inje University, Gimhae, 50834, South Korea
| | - Nuri Oh
- Department of Chemistry and Biology, Korea Science Academy of KAIST, 105-47 Baegyanggwanmun-ro, Busanjin-Gu, Busan, 47162, South Korea
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Scholz S, Lewis K, Saulich F, Endres M, Boehmerle W, Huehnchen P. Induced pluripotent stem cell-derived brain organoids as potential human model system for chemotherapy induced CNS toxicity. Front Mol Biosci 2022; 9:1006497. [PMID: 36188215 PMCID: PMC9520921 DOI: 10.3389/fmolb.2022.1006497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
Neurotoxic phenomena are among the most common side effects of cytotoxic agents. The development of chemotherapy-induced polyneuropathy (CIPN) is a well-recognized adverse reaction in the peripheral nervous system, while changes of cognitive functions (post-chemotherapy cognitive impairment (PCCI)) are more diffuse and have only recently drawn scientific interest. PCCI in patients most often displays as short-term memory loss, reduced multitasking ability or deficits in language. Not least, due to a lack of preclinical human model systems, the underlying molecular mechanisms are poorly understood, and treatments are missing. We thus investigated whether induced pluripotent stem cell (iPSC)-derived brain organoids can serve as a human model system for the study of chemotherapy induced central nervous system toxicity. We robustly generated mature brain organoids from iPSC-derived neuronal precursor cells (NPC), which showed a typical composition with 1) dividing NPCs forming ventricle like structures 2) matured neurons and 3) supporting glial cells closer to the surface. Furthermore, upon stimulation the brain organoids showed functional signaling. When exposed to increasing concentrations of paclitaxel, a frequently used chemotherapy drug, we observed time dependent neurotoxicity with an EC50 of 153 nM, comparable to a published murine model system. Histological analysis after paclitaxel exposure demonstrated dose dependent apoptosis induction and reduced proliferation in the organoids with further Western blot analyses indicating the degradation of neuronal calcium sensor one protein (NCS-1) and activation of Caspase-3. We could also provide evidence that paclitaxel treatment negatively affects the pool of neuronal and astrocyte precursor cells as well as mature neurons. In summary our data suggests that human iPSC derived brain organoids are a promising preclinical model system to investigate molecular mechanisms underlying PCCI and to develop novel prevention and treatment strategies.
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Affiliation(s)
- Sophie Scholz
- Klinik und Hochschulambulanz für Neurologie, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Department of Molecular and Experimental Nutritional Medicine, Institute of Nutritional Science, University of Potsdam, Nuthetal, Germany
| | - Karyn Lewis
- Klinik und Hochschulambulanz für Neurologie, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
| | - Frederik Saulich
- Klinik und Hochschulambulanz für Neurologie, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Molecular Genetics Group, Institute of Biology, Humboldt University of Berlin, Berlin, Germany
| | - Matthias Endres
- Klinik und Hochschulambulanz für Neurologie, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- NeuroCure Cluster of Excellence, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health, Charité — Universitätsmedizin Berlin, Berlin, Germany
- Center for Stroke Research Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- German Center for Neurodegenerative Diseases, Berlin, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Berlin, Berlin, Germany
| | - Wolfgang Boehmerle
- Klinik und Hochschulambulanz für Neurologie, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- NeuroCure Cluster of Excellence, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health, Charité — Universitätsmedizin Berlin, Berlin, Germany
- *Correspondence: Wolfgang Boehmerle,
| | - Petra Huehnchen
- Klinik und Hochschulambulanz für Neurologie, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- NeuroCure Cluster of Excellence, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Charité—Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health, Charité — Universitätsmedizin Berlin, Berlin, Germany
- *Correspondence: Wolfgang Boehmerle,
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