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Bis(thiosemicarbazone) Metal Complexes as Therapeutics for Neurodegenerative Diseases
S Mckenzie-Nickson, A I Bush, K J Barnham1
1Department of Pharmacology and Therapeutics, University of Melbourne, Melbourne, Australia. kbarnham@unimelb.edu.au.
Abstract:
Pathological aggregation of endogenous proteins is a common feature of many neurodegenerative diseases. This is generally accompanied by elevated levels of oxidative stress associated with transition metal dyshomeostasis. As such, strategies targeted toward rectifying metal imbalance are increasingly becoming an attractive therapeutic option. One class of compound showing such therapeutic potential are the bis(thiosemicarbazone) metal complexes. These are small, orally bioavailable compounds capable of crossing the blood brain barrier and capable of delivering bioavailable metal intracellularly. Members of this family of compounds have been shown to successfully treat animal models of several neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease and amyotrophic lateral sclerosis. Here we review the current evidence for the efficacy of bis(thiosemicarbazone) metal complexes in treating these diseases and discuss the implications for future development of these compounds.
Insights
Bis(thiosemicarbazone) metal complexes show promise for treating neurodegenerative diseases like Alzheimer's and Parkinson's by correcting metal imbalance and reducing oxidative stress.
Area of Science:
- Neuroscience
- Pharmacology
- Biochemistry
Background:
- Neurodegenerative diseases are characterized by pathological protein aggregation and oxidative stress.
- Transition metal dyshomeostasis is linked to these disease pathologies.
- Targeting metal imbalance presents a potential therapeutic strategy.
Purpose of the Study:
- To review the therapeutic potential of bis(thiosemicarbazone) metal complexes.
- To discuss their efficacy in animal models of neurodegenerative diseases.
- To explore future implications for these compounds.
Main Methods:
- Review of existing scientific literature on bis(thiosemicarbazone) metal complexes.
- Analysis of studies involving animal models of Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis.
- Evaluation of compound properties such as oral bioavailability and blood-brain barrier penetration.
Main Results:
- Bis(thiosemicarbazone) metal complexes are orally bioavailable and can cross the blood-brain barrier.
- These compounds effectively deliver bioavailable metal intracellularly.
- Successful treatment of animal models for Alzheimer's, Parkinson's, and ALS has been demonstrated.
Conclusions:
- Bis(thiosemicarbazone) metal complexes represent a promising therapeutic class for neurodegenerative diseases.
- Their ability to address metal dyshomeostasis and oxidative stress is key to their efficacy.
- Further development holds significant implications for future neurodegenerative disease treatments.
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