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Updated: Apr 16, 2026
Generation of Alpha-Synuclein Preformed Fibrils from Monomers and Use In Vivo
Published on: June 2, 2019
Carbosilane dendrimers inhibit α-synuclein fibrillation and prevent cells from rotenone-induced damage
Katarzyna Milowska1, Aleksandra Szwed1, Marta Mutrynowska1
1Department of General Biophysics, Faculty of Biology and Environmental Protection, University of Lodz, 141/143 Pomorska Street, 90-236 Lodz, Poland.
Abstract:
This study investigates the role of carbosilane dendrimers in fibrillation of α-synuclein and prevention of the mouse hippocampal cell (mHippoE-18) from rotenone-induced damage. Examining the interaction between carbosilane dendrimers and α-synuclein, we found that the dendrimers inhibit fibril formation. We also investigated cell viability, the production of reactive oxygen species (ROS), and mitochondrial membrane potential. mHippoE-18 cells were preincubated with carbosilane dendrimers before rotenone was added. All the dendrimers possess potential protection activity. Preincubation with dendrimers contributed to: increased viability, higher mitochondrial membrane potential, and reduced ROS level in cells. The probable mechanism of cell protection lies in the ability of dendrimers to capture rotenone by encapsulating or binding to its surface groups. The fact that dendrimers have prevention potential is important in the search for new pharmacological strategies against neurodegenerative disorders.
Insights
Carbosilane dendrimers inhibit α-synuclein fibrillation and protect mouse hippocampal cells from rotenone damage. These dendrimers show potential as a therapeutic strategy for neurodegenerative disorders.
Area of Science:
- Neuroscience
- Biochemistry
- Materials Science
Background:
- α-synuclein fibrillation is implicated in neurodegenerative diseases.
- Rotenone induces damage in mouse hippocampal cells, mimicking neurotoxicity.
- Carbosilane dendrimers are novel nanomaterials with potential therapeutic applications.
Purpose of the Study:
- To investigate the effect of carbosilane dendrimers on α-synuclein fibrillation.
- To evaluate the protective effects of carbosilane dendrimers against rotenone-induced damage in mouse hippocampal cells.
- To elucidate the mechanism underlying the protective activity of carbosilane dendrimers.
Main Methods:
- Studied the interaction between carbosilane dendrimers and α-synuclein to assess fibril formation inhibition.
- Assessed cell viability, reactive oxygen species (ROS) production, and mitochondrial membrane potential in rotenone-exposed cells pretreated with dendrimers.
- Utilized mouse hippocampal (mHippoE-18) cell line for in vitro experiments.
Main Results:
- Carbosilane dendrimers effectively inhibited the fibrillation of α-synuclein.
- Pretreatment with carbosilane dendrimers significantly increased cell viability and mitochondrial membrane potential.
- Dendrimer treatment led to a reduction in ROS levels in rotenone-damaged cells.
Conclusions:
- Carbosilane dendrimers demonstrate significant neuroprotective potential against rotenone-induced toxicity.
- The protective mechanism likely involves the dendrimers' ability to interact with and neutralize rotenone.
- These findings highlight the therapeutic promise of carbosilane dendrimers for neurodegenerative disorders.
