Biogenic Aldehyde-Mediated Mechanisms of Toxicity in Neurodegenerative Disease
Overview
Affiliations
Oxidative decomposition of several biomolecules produces reactive aldehydes. Monoamine neurotransmitters are enzymatically converted to aldehydes via monoamine oxidase followed by further metabolism such as carbonyl oxidation/reduction. Elevated levels of aldehyde intermediates are implicated as factors in several pathological conditions, including Parkinson's disease. The biogenic aldehydes produced from dopamine, norepinephrine and serotonin are known to be toxic, generate reactive oxygen species and/or cause aggregation of proteins such as α-synuclein. Polyunsaturated lipids undergo oxidative decomposition to produce biogenic aldehydes, including 4-hydroxy-2-nonenal and malondialdehyde. These lipid aldehydes, some including an α,β-unsaturated carbonyl, target important proteins such as α-synuclein, proteasome degradation and G-protein-coupled signaling. Overproduction of biogenic aldehydes is a hypothesized factor in neurodegeneration; preventing their formation or scavenging may provide means for neuroprotection.
Selective dopaminergic neurotoxicity modulated by inherent cell-type specific neurobiology.
Currim F, Tanwar R, Brown-Leung J, Paranjape N, Liu J, Sanders L Neurotoxicology. 2024; 103:266-287.
PMID: 38964509 PMC: 11288778. DOI: 10.1016/j.neuro.2024.06.016.
Kang S, Noh Y, Oh S, Yoon H, Im S, Kwon H Molecules. 2023; 28(24).
PMID: 38138478 PMC: 10745824. DOI: 10.3390/molecules28247988.
Aldehyde-Associated Mutagenesis─Current State of Knowledge.
Vijayraghavan S, Saini N Chem Res Toxicol. 2023; 36(7):983-1001.
PMID: 37363863 PMC: 10354807. DOI: 10.1021/acs.chemrestox.3c00045.
Scavenging neurotoxic aldehydes using lysine carbon dots.
Bloch D, Sandre M, Ben Zichri S, Masato A, Kolusheva S, Bubacco L Nanoscale Adv. 2023; 5(5):1356-1367.
PMID: 36866263 PMC: 9972859. DOI: 10.1039/d2na00804a.
Harnessing the Therapeutic Potential of the Nrf2/Bach1 Signaling Pathway in Parkinson's Disease.
Ahuja M, Kaidery N, Dutta D, Attucks O, Kazakov E, Gazaryan I Antioxidants (Basel). 2022; 11(9).
PMID: 36139853 PMC: 9495572. DOI: 10.3390/antiox11091780.