Cannabidiol-Mediated Sequestration of Alzheimer’s Amyloid-<i>β</i> Peptides in ADDL Oligomers — Oak Academic Publishing
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Cannabidiol-Mediated Sequestration of Alzheimer’s Amyloid-<i>β</i> Peptides in ADDL Oligomers
Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
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Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
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School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
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Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
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Laboratorio de Evolución Química, Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico
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Institute for Discovery, University College Dublin, Dublin, Ireland
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School of Physics, University College Dublin, Dublin, Ireland
1 Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
2 Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
3 School of Biomolecular and Biomedical Science, University College Dublin, Dublin, Ireland
4 Departamento de Física y Química Teórica, Facultad de Química, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, Mexico
5 Laboratorio de Evolución Química, Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, Mexico City, Mexico
6 Institute for Discovery, University College Dublin, Dublin, Ireland
7 School of Physics, University College Dublin, Dublin, Ireland
Cannabidiol (CBD), one of the most studied phytocannabinoids, is non-psychotropic and can induce protective effects on the central nervous system against acute and chronic brain injury. Interestingly, CBD inhibits processes relating to amyloid beta (A β )-induced neurotoxicity in mouse models of Alzheimer’s disease, though the detailed molecular mechanism underlying the CBD neurotoxicity modulation is not fully understood. In this study, using atomic force microscopy, we find that CBD promotes the aggregation of A β peptides, enhancing the formation of A β oligomers, also known as A β -derived diffusible ligands (ADDLs). The CBD-mediated sequestration of A β monomers in soluble ADDLs could reduce neurotoxicity. This study highlights a possible role of CBD in modulating the formation of ADDL aggregates and provides insight into potentially neuroprotective properties of CBD in Alzheimer’s disease.
KeywordsCannabidiolAmyloidAlzheimer’s Amyloid-<i>β</i>PeptidesA<i>β</i>-Derived Diffusible LigandsAtomic Force MicroscopyAmyloid Peptide Sequestration
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