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Synthesis and Biological Evaluation of Hydroxylated Monocarbonyl Curcumin Derivatives as Potential Inducers of Neprilysin Activity.


ABSTRACT:

Background

Alzheimer's disease (AD) involves impairment of Aβ clearance. Neprilysin (NEP) is the most efficient Aβ peptidase. Enhancement of the activity or expression of NEP may provide a prominent therapeutic strategy against AD.

Aims

Ten hydroxylated monocarbonyl curcumin derivatives were designed, synthesized and evaluated for their NEP upregulating potential using sensitive fluorescence-based Aβ digestion and inhibition assays.

Results

Compound 4 was the most active one, resulting in a 50% increase in Aβ cleavage activity. Cyclohexanone-bearing derivatives exhibited higher activity enhancement compared to their acetone counterparts. Inhibition experiments with the NEP-specific inhibitor thiorphan resulted in dramatic cleavage reduction. Conclusion: The increased Aβ cleavage activity and the ease of synthesis of 4 renders it an extremely attractive lead compound.

SUBMITTER: Matiadis D 

PROVIDER: S-EPMC8394082 | biostudies-literature |

REPOSITORIES: biostudies-literature

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