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result sql = Site-activated chelators targeting acetylcholinesterase and monoamine oxidase for Alzheimer's therapy.
Site-activated chelators targeting acetylcholinesterase and monoamine oxidase for Alzheimer's therapy.
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char = c;code = 99
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char = i;code = 105
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char = e;code = 101
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char = e;code = 101
char = l;code = 108
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char = n;code = 110
char = a;code = 97
char = t;code = 116
char = i;code = 105
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char = n;code = 110
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result sql = Chelators have the potential to treat the underlying cause of Alzheimer's disease (AD), but their therapeutic use is hampered by their poor targeting and poor permeability to the brain and/or toxic effects. Here, we report a new strategy for designing site-activated chelators targeting both acetylcholinesterase (AChE) and monoamine oxidase (MAO). We demonstrated that our lead 2 inhibited both AChE and MAO in vitro, but with little affinity for metal (Fe, Cu, and Zn) ions. Compound 2 can be activated by inhibition of AChE to release an active chelator M30. M30 has been shown to be able to modulate amyloid precursor protein regulation and beta-amyloid reduction, suppress oxidative stress, and passivate excess metal ions (Fe, Cu, and Zn). Compound 2 was less cytotoxic and more lipophilic than the brain-permeable chelator M30. Our new strategy is relatively simple and generally produces small and simple molecules with drug-like properties; it thus holds a potential use in designing site-activated multifunctional chelators with safer and more efficacious properties for treating other metal-related diseases such as Parkinson's disease and cancer where specific elimination of metals in cancer cells is required.

Publication: ACS Chem. Biol. 2010 Jun 18 ;5(6)::603-10. :doi: 10.1021/cb900264w.
Publication Date: 2010 Jun 18
Study Author(s): Zheng, Hailin;Youdim, Moussa B H;Fridkin, Mati;
Institution: Department of Organic Chemistry, The Weizmann Institute of Science, Rehovot, Israel.
Shortcut link to this study:
Chelators have the potential to treat the underlying cause of Alzheimer's disease (AD), but their therapeutic use is hampered by their poor targeting and poor permeability to the brain and/or toxic effects. Here, we report a new strategy for designing site-activated chelators targeting both acetylcholinesterase (AChE) and monoamine oxidase (MAO). We demonstrated that our lead 2 inhibited both AChE and MAO in vitro, but with little affinity for metal (Fe, Cu, and Zn) ions. Compound 2 can be activated by inhibition of AChE to release an active chelator M30. M30 has been shown to be able to modulate amyloid precursor protein regulation and beta-amyloid reduction, suppress oxidative stress, and passivate excess metal ions (Fe, Cu, and Zn). Compound 2 was less cytotoxic and more lipophilic than the brain-permeable chelator M30. Our new strategy is relatively simple and generally produces small and simple molecules with drug-like properties; it thus holds a potential use in designing site-activated multifunctional chelators with safer and more efficacious properties for treating other metal-related diseases such as Parkinson's disease and cancer where specific elimination of metals in cancer cells is required.
PMID: 20455574

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