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Potent and selective 2-naphthylsulfonamide substituted hydroxamic acid inhibitors of matrix metalloproteinase-13
Ruben A Tommasi1, Sven Weiler, Leslie W McQuire
1Novartis Institutes for Biomedical Research, Inc., Cambridge, MA 02139, USA.
Abstract:
The matrix metalloproteinase enzyme MMP-13 plays a key role in the degradation of type II collagen in cartilage and bone in osteoarthritis (OA). An effective MMP-13 inhibitor would provide a disease modifying therapy for the treatment of arthritis, although this goal still continues to elude the pharmaceutical industry due to issues with safety. Our efforts have resulted in the discovery of a series of hydroxamic acid inhibitors of MMP-13 that do not significantly inhibit MMP-2 (gelatinase-1). MMP-2 has been implicated in the musculoskeletal side effects resulting from pan-MMP inhibition due to findings from spontaneously occurring human MMP-2 deletions. Analysis of the SAR of hundreds of previously prepared hydroxamate based MMP inhibitors lead us to 2-naphthylsulfonamide substituted hydroxamates which exhibited modest selectivity for MMP-13 versus MMP-2. This Letter describes the lead optimization of 1 and identification of inhibitors exhibiting >100-fold selectivity for MMP-13 over MMP-2.
Insights
Researchers developed novel hydroxamic acid inhibitors targeting matrix metalloproteinase-13 (MMP-13) for osteoarthritis. These inhibitors show high selectivity, avoiding MMP-2 inhibition to improve safety for arthritis treatment.
Area of Science:
- Medicinal Chemistry
- Biochemistry
- Pharmacology
Background:
- Matrix metalloproteinase-13 (MMP-13) is crucial for type II collagen degradation in osteoarthritis (OA).
- Developing safe and effective MMP-13 inhibitors for OA disease modification remains a challenge.
- MMP-2 inhibition is linked to adverse musculoskeletal effects, necessitating selective inhibitors.
Purpose of the Study:
- To discover and optimize selective MMP-13 inhibitors.
- To develop a potential disease-modifying therapy for osteoarthritis.
- To identify inhibitors with high selectivity over MMP-2.
Main Methods:
- Structure-activity relationship (SAR) analysis of hydroxamate-based MMP inhibitors.
- Design and synthesis of 2-naphthylsulfonamide substituted hydroxamates.
- In vitro enzymatic assays to determine MMP-13 and MMP-2 inhibition and selectivity.
Main Results:
- Identified hydroxamic acid inhibitors with significant selectivity for MMP-13 over MMP-2.
- Achieved >100-fold selectivity for MMP-13 versus MMP-2 in lead compounds.
- Demonstrated potential for developing safer MMP-13 targeted therapies.
Conclusions:
- Selective MMP-13 inhibition is achievable with hydroxamate-based compounds.
- 2-Naphthylsulfonamide substitution is a promising strategy for enhancing MMP-13 selectivity.
- These findings offer a path towards safer, disease-modifying osteoarthritis treatments.
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