Nejvíce citovaný článek - PubMed ID 20393191
Damage or loss of brain cells and impaired neurochemistry, neurogenesis, and synaptic and nonsynaptic plasticity of the brain lead to dementia in neurodegenerative diseases, such as Alzheimer's disease (AD). Injury to synapses and neurons and accumulation of extracellular amyloid plaques and intracellular neurofibrillary tangles are considered the main morphological and neuropathological features of AD. Age, genetic and epigenetic factors, environmental stressors, and lifestyle contribute to the risk of AD onset and progression. These risk factors are associated with structural and functional changes in the brain, leading to cognitive decline. Biomarkers of AD reflect or cause specific changes in brain function, especially changes in pathways associated with neurotransmission, neuroinflammation, bioenergetics, apoptosis, and oxidative and nitrosative stress. Even in the initial stages, AD is associated with Aβ neurotoxicity, mitochondrial dysfunction, and tau neurotoxicity. The integrative amyloid-tau-mitochondrial hypothesis assumes that the primary cause of AD is the neurotoxicity of Aβ oligomers and tau oligomers, mitochondrial dysfunction, and their mutual synergy. For the development of new efficient AD drugs, targeting the elimination of neurotoxicity, mutual potentiation of effects, and unwanted protein interactions of risk factors and biomarkers (mainly Aβ oligomers, tau oligomers, and mitochondrial dysfunction) in the early stage of the disease seems promising.
- Klíčová slova
- Alzheimer’s disease, amyloid beta, drug, mitochondria, tau protein,
- MeSH
- Alzheimerova nemoc * metabolismus MeSH
- amyloid metabolismus MeSH
- amyloidní beta-protein metabolismus MeSH
- amyloidogenní proteiny metabolismus MeSH
- lidé MeSH
- mitochondrie metabolismus MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- přehledy MeSH
- Názvy látek
- amyloid MeSH
- amyloidní beta-protein MeSH
- amyloidogenní proteiny MeSH
Alzheimer's disease is debilitating neurodegenerative disorder in the elderly. Current therapy relies on administration of acetylcholinesterase inhibitors (AChEIs) -donepezil, rivastigmine, galantamine, and N-methyl-d-aspartate receptor antagonist memantine. However, their therapeutic effect is only short-term and stabilizes cognitive functions for up to 2 years. Given this drawback together with other pathological hallmarks of the disease taken into consideration, novel approaches have recently emerged to better cope with AD onset or its progression. One such strategy implies broadening the biological profile of AChEIs into so-called multi-target directed ligands (MTDLs). In this review article, we made comprehensive literature survey emphasising on donepezil template which was structurally converted into plethora of MTLDs preserving anti-cholinesterase effect and, at the same time, escalating the anti-oxidant potential, which was reported as a crucial role in the pathogenesis of the Alzheimer's disease.
- Klíčová slova
- Acetylcholinesterase, Alzheimer’s disease, donepezil, multi-target directed ligands, oxidative stress,
- MeSH
- acetylcholinesterasa metabolismus MeSH
- Alzheimerova nemoc farmakoterapie metabolismus MeSH
- antioxidancia chemie farmakologie MeSH
- cholinesterasové inhibitory chemie farmakologie MeSH
- donepezil MeSH
- indany chemie farmakologie MeSH
- lidé MeSH
- molekulární struktura MeSH
- piperidiny chemie farmakologie MeSH
- vztahy mezi strukturou a aktivitou MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- přehledy MeSH
- Názvy látek
- acetylcholinesterasa MeSH
- antioxidancia MeSH
- cholinesterasové inhibitory MeSH
- donepezil MeSH
- indany MeSH
- piperidiny MeSH
Alzheimer's disease (AD) is the most common form of dementia. The risk of AD increases with age. Although two of the main pathological features of AD, amyloid plaques and neurofibrillary tangles, were already recognized by Alois Alzheimer at the beginning of the 20th century, the pathogenesis of the disease remains unsettled. Therapeutic approaches targeting plaques or tangles have not yet resulted in satisfactory improvements in AD treatment. This may, in part, be due to early-onset and late-onset AD pathogenesis being underpinned by different mechanisms. Most animal models of AD are generated from gene mutations involved in early onset familial AD, accounting for only 1% of all cases, which may consequently complicate our understanding of AD mechanisms. In this article, the authors discuss the pathogenesis of AD according to the two main neuropathologies, including senescence-related mechanisms and possible treatments using stem cells, namely mesenchymal and neural stem cells.
- Klíčová slova
- Alzheimer’s disease, Tau, amyloid-β, mesenchymal stem cells, neural stem cells,
- MeSH
- Alzheimerova nemoc etiologie metabolismus patologie terapie MeSH
- amyloidní beta-protein imunologie metabolismus MeSH
- amyloidní plaky metabolismus patologie MeSH
- buněčná a tkáňová terapie * metody MeSH
- energetický metabolismus MeSH
- imunoterapie metody MeSH
- kmenové buňky cytologie metabolismus MeSH
- lidé MeSH
- modely nemocí na zvířatech MeSH
- mutace MeSH
- neuroglie metabolismus MeSH
- proteiny tau imunologie metabolismus MeSH
- stárnutí genetika imunologie metabolismus MeSH
- transplantace kmenových buněk metody MeSH
- věk při počátku nemoci MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- přehledy MeSH
- Názvy látek
- amyloidní beta-protein MeSH
- proteiny tau MeSH