Structure-based Approaches Targeting Parasite Cysteine Proteases.

Area of Science:

• Biochemistry
• Enzymology
• Drug Discovery

Background:

• Cysteine proteases are vital hydrolytic enzymes found across diverse organisms, including pathogens.
• Structural variations in cysteine proteases confer distinct functions, often linked to disease.
• These enzymes are recognized as significant therapeutic targets for developing novel inhibitors.

Purpose of the Study:

• To review structure-based drug discovery efforts for cysteine protease inhibitors.
• To highlight inhibitors targeting cruzain and falcipain for Chagas disease and malaria.
• To extend these strategies to other neglected tropical diseases and Alzheimer's disease.

Main Methods:

• Structure-based drug design campaigns.
• Computational approaches for hit identification and optimization.
• Synthetic chemistry for inhibitor development.

Main Results:

• Recent progress in identifying novel inhibitor prototypes against cruzain and falcipain.
• Successful integration of computational and synthetic methods for hit optimization.
• Exploration of cysteine protease inhibitors for schistosomiasis, leishmaniasis, babesiosis, and Alzheimer's disease.

Conclusions:

• Structure-based approaches are effective for discovering cysteine protease inhibitors.
• Targeting cysteine proteases offers potential therapeutic strategies for infectious and neurodegenerative diseases.
• Combined computational and synthetic methodologies accelerate inhibitor development.