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Design and Synthesis of Water-Soluble and Potent MMP-13 Inhibitors with Activity in Human Osteosarcoma Cells
Jose Maria Zapico1, Lourdes Acosta1, Miryam Pastor1
1Departamento de Química y Bioquímica, Facultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28925 Alcorcón, Spain.
Abstract:
Osteoarthritis is a degenerative disease, often resulting in chronic joint pain and commonly affecting elderly people. Current treatments with anti-inflammatory drugs are palliative, making the discovery of new treatments necessary. The inhibition of matrix metalloproteinase MMP-13 is a validated strategy to prevent the progression of this common joint disorder. We recently described polybrominated benzotriazole derivatives with nanomolar inhibitory activity and a promising selectivity profile against this collagenase. In this work, we have extended the study in order to explore the influence of bromine atoms and the nature of the S1' heterocyclic interacting moiety on the solubility/selectivity balance of this type of compound. Drug target interactions have been assessed through a combination of molecular modeling studies and NMR experiments. Compound 9a has been identified as a water-soluble and highly potent inhibitor with activity in MG-63 human osteosarcoma cells.
Insights
New polybrominated benzotriazoles show promise for osteoarthritis treatment. Compound 9a is a potent, water-soluble inhibitor of matrix metalloproteinase-13 (MMP-13), offering a potential new therapy for joint degeneration.
Area of Science:
- Biochemistry
- Medicinal Chemistry
- Pharmacology
Background:
- Osteoarthritis is a degenerative joint disease causing chronic pain, particularly in the elderly.
- Current treatments for osteoarthritis are palliative, highlighting the need for disease-modifying therapies.
- Matrix metalloproteinase-13 (MMP-13) inhibition is a validated strategy to prevent osteoarthritis progression.
Purpose of the Study:
- To explore the structure-activity relationship of polybrominated benzotriazole derivatives as MMP-13 inhibitors.
- To investigate the impact of bromine substitution and heterocyclic moieties on compound solubility and selectivity.
- To identify novel, potent, and selective MMP-13 inhibitors for osteoarthritis treatment.
Main Methods:
- Synthesis and characterization of novel polybrominated benzotriazole derivatives.
- In vitro enzymatic assays to determine MMP-13 inhibitory activity and selectivity.
- Molecular modeling studies and Nuclear Magnetic Resonance (NMR) experiments to assess drug-target interactions.
- Cell-based assays using MG-63 human osteosarcoma cells to evaluate compound efficacy.
Main Results:
- Several polybrominated benzotriazole derivatives exhibited nanomolar inhibitory activity against MMP-13.
- Structural modifications influenced the solubility and selectivity profile of the inhibitors.
- Compound 9a demonstrated high potency and improved water solubility.
- Compound 9a showed significant inhibitory activity in a cellular model (MG-63 cells).
Conclusions:
- Polybrominated benzotriazoles are effective MMP-13 inhibitors with potential for osteoarthritis therapy.
- Compound 9a represents a promising lead candidate due to its potency, selectivity, and favorable solubility.
- Further development of these compounds could lead to novel treatments for osteoarthritis and related joint disorders.

