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Organotypic Collagen I Assay: A Malleable Platform to Assess Cell Behaviour in a 3-Dimensional Context
Published on: October 13, 2011
High-throughput screening for human collagenase 1 inhibitors
1National Centers for Drug Screening, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
Acta Pharmacologica Sinica
|August 15, 2001
Summary
A new high-throughput screening method effectively identifies collagenase inhibitors. This rapid technique using recombinant human collagenase 1 successfully pinpointed 15 potent compounds for drug discovery.
Area of Science:
- Biochemistry
- Enzymology
- Drug Discovery
Background:
- Collagenases are crucial enzymes involved in tissue remodeling and disease.
- Developing efficient methods for identifying collagenase inhibitors is essential for therapeutic development.
Purpose of the Study:
- To establish a high-throughput screening (HTS) method for identifying collagenase inhibitors.
- To utilize a recombinant human collagenase 1 catalytic domain for inhibitor screening.
Main Methods:
- Human collagenase 1 catalytic domain protein was expressed in E. coli.
- A library of 2720 compounds was screened using the recombinant enzyme in a high-throughput format.
- Screening was completed in 2 hours and 10 minutes, with minimal compound consumption (4 micrograms per compound).
Main Results:
- Sixty-six compounds exhibited >60% inhibition at 20 mg/L.
- Forty-four of these compounds were confirmed through subsequent multi-concentration testing.
- The most potent inhibitor demonstrated an IC50 of 4.3 μmol/L, with 15 compounds showing IC50 values below 20 μmol/L.
Conclusions:
- The developed HTS method is fast, effective, and practical for identifying collagenase inhibitors.
- This approach facilitates the discovery of novel therapeutic agents targeting collagenase activity.
