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Matrix metalloproteinase inhibitors and cancer: trials and tribulations

Lisa M Coussens1, Barbara Fingleton, Lynn M Matrisian

  • 1Department of Pathology and Cancer Research Institute, University of California, 2340 Sutter Street, San Francisco, CA 94143, USA.

Science (New York, N.Y.)
|March 30, 2002
PubMed

Insights

Matrix metalloproteinase inhibitors (MPIs) show promise for cancer therapy due to MMPs

Area of Science:

  • Oncology
  • Biochemistry

Background:

  • Matrix metalloproteinases (MMPs) are upregulated in malignant tissues and degrade the extracellular matrix.
  • MMPs have been considered promising therapeutic targets for cancer treatment.
  • Synthetic metalloproteinase inhibitors (MPIs) were developed based on compelling preclinical data.

Purpose of the Study:

  • To review studies leading to clinical trials of MPIs.
  • To discuss MPI trial design and outcomes in light of new MMP information.
  • To extract lessons for future MPI studies and cancer drug development.

Main Methods:

  • Review of preclinical studies and human clinical trials of MPIs.
  • Analysis of new information on MMPs' cellular source, substrates, and action during tumor progression.

Main Results:

  • Preclinical studies showed compelling efficacy of MMP suppression.
  • Human clinical trials with MPIs have yielded disappointing results.
  • New data reveal complexities in MMPs' roles at different tumor progression stages.

Conclusions:

  • The clinical failure of MPIs highlights a gap between preclinical promise and therapeutic reality.
  • Understanding MMPs' diverse roles is crucial for effective cancer therapy.
  • Lessons from the MPI experience can guide future cancer drug development.

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