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Particulate matter constituents trigger the formation of extracellular amyloid β and Tau -containing plaques and neurite shortening in vitro

Sebastijanović, Aleksandar ; Azzurra Camassa, Laura Maria ; Malmborg, Vilhelm LU orcid ; Kralj, Slavko ; Pagels, Joakim LU ; Vogel, Ulla ; Zienolddiny-Narui, Shan ; Urbančič, Iztok ; Koklič, Tilen and Štrancar, Janez (2024) In Nanotoxicology 18(4). p.335-353
Abstract

Air pollution is an environmental factor associated with an increased risk of neurodegenerative diseases, such as Alzheimer’s and Parkinson’s, characterized by decreased cognitive abilities and memory. The limited models of sporadic Alzheimer’s disease fail to replicate all pathological hallmarks of the disease, making it challenging to uncover potential environmental causes. Environmentally driven models of Alzheimer’s disease are thus timely and necessary. We used live-cell confocal fluorescent imaging combined with high-resolution stimulated emission depletion (STED) microscopy to follow the response of retinoic acid-differentiated human neuroblastoma SH-SY5Y cells to nanomaterial exposure. Here, we report that exposure of the cells... (More)

Air pollution is an environmental factor associated with an increased risk of neurodegenerative diseases, such as Alzheimer’s and Parkinson’s, characterized by decreased cognitive abilities and memory. The limited models of sporadic Alzheimer’s disease fail to replicate all pathological hallmarks of the disease, making it challenging to uncover potential environmental causes. Environmentally driven models of Alzheimer’s disease are thus timely and necessary. We used live-cell confocal fluorescent imaging combined with high-resolution stimulated emission depletion (STED) microscopy to follow the response of retinoic acid-differentiated human neuroblastoma SH-SY5Y cells to nanomaterial exposure. Here, we report that exposure of the cells to some particulate matter constituents reproduces a neurodegenerative phenotype, including extracellular amyloid beta-containing plaques and decreased neurite length. Consistent with the existing in vivo research, we observed detrimental effects, specifically a substantial reduction in neurite length and formation of amyloid beta plaques, after exposure to iron oxide and diesel exhaust particles. Conversely, after exposure to engineered cerium oxide nanoparticles, the lengths of neurites were maintained, and almost no extracellular amyloid beta plaques were formed. Although the exact mechanism behind this effect remains to be explained, the retinoic acid differentiated SH-SY5Y cell in vitro model could serve as an alternative, environmentally driven model of neurodegenerative diseases, including Alzheimer’s disease.

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Please use this url to cite or link to this publication:
@article{9dfa2957-9c49-4485-872b-34c5ea4018bf,
  abstract     = {{<p>Air pollution is an environmental factor associated with an increased risk of neurodegenerative diseases, such as Alzheimer’s and Parkinson’s, characterized by decreased cognitive abilities and memory. The limited models of sporadic Alzheimer’s disease fail to replicate all pathological hallmarks of the disease, making it challenging to uncover potential environmental causes. Environmentally driven models of Alzheimer’s disease are thus timely and necessary. We used live-cell confocal fluorescent imaging combined with high-resolution stimulated emission depletion (STED) microscopy to follow the response of retinoic acid-differentiated human neuroblastoma SH-SY5Y cells to nanomaterial exposure. Here, we report that exposure of the cells to some particulate matter constituents reproduces a neurodegenerative phenotype, including extracellular amyloid beta-containing plaques and decreased neurite length. Consistent with the existing in vivo research, we observed detrimental effects, specifically a substantial reduction in neurite length and formation of amyloid beta plaques, after exposure to iron oxide and diesel exhaust particles. Conversely, after exposure to engineered cerium oxide nanoparticles, the lengths of neurites were maintained, and almost no extracellular amyloid beta plaques were formed. Although the exact mechanism behind this effect remains to be explained, the retinoic acid differentiated SH-SY5Y cell in vitro model could serve as an alternative, environmentally driven model of neurodegenerative diseases, including Alzheimer’s disease.</p>}},
  author       = {{Sebastijanović, Aleksandar and Azzurra Camassa, Laura Maria and Malmborg, Vilhelm and Kralj, Slavko and Pagels, Joakim and Vogel, Ulla and Zienolddiny-Narui, Shan and Urbančič, Iztok and Koklič, Tilen and Štrancar, Janez}},
  issn         = {{1743-5390}},
  keywords     = {{air pollution; amyloid β (Aβ); CeO nanoparticles; diesel exhaust; iron oxide; microtubule-associated protein (Tau); Neurite shortening; neuronal degeneration; particulate matter constituents; TiO nanotubes}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{335--353}},
  publisher    = {{Informa Healthcare}},
  series       = {{Nanotoxicology}},
  title        = {{Particulate matter constituents trigger the formation of extracellular amyloid β and Tau -containing plaques and neurite shortening in vitro}},
  url          = {{http://dx.doi.org/10.1080/17435390.2024.2362367}},
  doi          = {{10.1080/17435390.2024.2362367}},
  volume       = {{18}},
  year         = {{2024}},
}