Novel bis-(arylsulfonamide) hydroxamate-based selective MMP inhibitors

Area of Science:

• Medicinal Chemistry
• Enzyme Inhibition
• Structure-Activity Relationships

Background:

• Matrix metalloproteinases (MMPs) are implicated in various diseases.
• Developing selective MMP inhibitors is crucial for therapeutic interventions.
• Hydroxamate-based inhibitors are a known class of MMP modulators.

Purpose of the Study:

• To synthesize and evaluate a series of bis-(arylsulfonamide) hydroxamate inhibitors.
• To investigate the structure-activity relationships (SAR) of these compounds against MMP-7 and MMP-9.
• To explore the potential for isozyme selectivity based on structural modifications.

Main Methods:

• Chemical synthesis of bis-(arylsulfonamide) hydroxamate derivatives.
• In vitro enzymatic assays to determine inhibitory potency against MMP-7 and MMP-9.
• Analysis of SAR based on variations in benzene ring substituents.

Main Results:

• The synthesized compounds demonstrated good inhibitory potency against MMP-7 and MMP-9.
• Inhibitor potency was dependent on the nature, steric bulk, and substitution pattern of benzene ring substituents.
• Electron-rich sulfonamide analogs generally showed better inhibition, but H-bond acceptors could alter this trend based on the isozyme.
• Isozyme selectivity between MMP-7 and MMP-9 was achievable through steric and substitution modifications.
• MMP-10 inhibition patterns mirrored those observed for MMP-9.

Conclusions:

• Bis-(arylsulfonamide) hydroxamates represent a promising scaffold for MMP inhibitor development.
• Strategic modification of benzene ring substituents allows for tuning of potency and selectivity.
• Further investigation into these SAR can guide the design of targeted MMP therapeutics.