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Updated: Jun 3, 2026
Measuring Global Cellular Matrix Metalloproteinase and Metabolic Activity in 3D Hydrogels
Published on: January 22, 2019
Immobilization of matrix metalloproteinase 8 (MMP-8) for online drug screening
Francesco Mazzini1, Elisa Nuti, Antonella Petri
1Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Pisa, Italy. lcap@ns.dcci.unipi.it
Abstract:
Matrix metalloproteinase 8 (MMP-8) has been reported to have a key role in several pathologic conditions, like heart diseases, osteoarthritis, multiple sclerosis, and various other inflammatory conditions. Therefore, there is a great interest regarding the development of MMP-8 selective inhibitors. In the recent years, immobilized enzyme reactors (IMERs) proved to be an efficient alternative to solution-based assays. Besides the recycling of the enzyme, IMER approach allows a simple way to determine affinity data and thus the ranking of inhibiting potency of the compounds under study, especially when coupled to MS. In this study, the immobilization of MMP-8 was investigated in terms of type of support, kinetic parameters, storage and pH stability. Epoxy activated silica resulted the best matrix for the preparation of an immobilized enzyme reactor (IMER) containing human MMP-8. The IMER was successfully used for the online screening of known MMP-8 inhibitors in zonal chromatography and inhibition experiments.
Insights
Researchers developed an immobilized enzyme reactor (IMER) for matrix metalloproteinase 8 (MMP-8) using epoxy-activated silica. This novel MMP-8 IMER efficiently screens potential inhibitors, offering a valuable tool for drug discovery in inflammatory diseases.
Area of Science:
- Biochemistry
- Enzyme Technology
- Drug Discovery
Background:
- Matrix metalloproteinase 8 (MMP-8) is implicated in various pathologies, including heart disease, osteoarthritis, and inflammatory conditions.
- Selective MMP-8 inhibitors are of significant therapeutic interest.
- Immobilized enzyme reactors (IMERs) offer an efficient alternative to solution-based assays for enzyme activity and inhibition studies.
Purpose of the Study:
- To investigate the immobilization of MMP-8 for developing an efficient screening tool.
- To evaluate different supports, kinetic parameters, and stability of the immobilized enzyme.
- To demonstrate the utility of the MMP-8 IMER for inhibitor screening.
Main Methods:
- Immobilization of human MMP-8 on various supports.
- Characterization of kinetic parameters, storage stability, and pH stability of the immobilized enzyme.
- Application of the MMP-8 IMER in zonal chromatography and inhibition experiments, coupled with MS detection.
Main Results:
- Epoxy-activated silica was identified as the optimal matrix for MMP-8 immobilization.
- The prepared MMP-8 IMER exhibited favorable kinetic parameters and stability.
- The IMER was successfully employed for online screening of known MMP-8 inhibitors.
Conclusions:
- Immobilized enzyme reactors (IMERs) provide an efficient platform for studying MMP-8.
- Epoxy-activated silica is a suitable support for creating a robust MMP-8 IMER.
- The developed MMP-8 IMER facilitates rapid screening and ranking of potential MMP-8 inhibitors.
