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Matrix metalloproteinases and diseases of the CNS
V W Yong1, C A Krekoski, P A Forsyth
1Dept of Oncology, University of Calgary, Alberta, Canada.
Abstract:
Matrix metalloproteinases (MMPs) are increasingly being implicated in the pathogenesis of several CNS diseases. In multiple sclerosis, MMPs could be responsible for the influx of inflammatory mononuclear cells into the CNS, contribute to myelin destruction and disrupt the integrity of the blood-brain barrier; in Alzheimer's disease, MMPs might mediate the deposition of amyloid beta-proteins; and MMPs are known to contribute to the invasiveness of malignant glioma cells and might regulate their angiogenic capacity. Nonetheless, MMPs could also have beneficial roles in recovery from CNS injury.Therefore, both the identity of the MMP and its cellular origin could determine whether disease pathogenesis or regeneration occurs, and thus synthetic MMP inhibitors might be valuable for treating some CNS diseases.
Insights
Matrix metalloproteinases (MMPs) play complex roles in central nervous system (CNS) diseases, potentially causing damage or aiding recovery. Understanding specific MMPs and their origins is key for developing targeted therapies for CNS disorders.
Area of Science:
- Neuroscience
- Biochemistry
- Pathology
Background:
- Matrix metalloproteinases (MMPs) are enzymes involved in extracellular matrix degradation.
- MMPs are increasingly recognized for their roles in the central nervous system (CNS).
Purpose of the Study:
- To explore the dual role of MMPs in CNS diseases, encompassing both pathogenesis and regeneration.
- To highlight the potential therapeutic implications of targeting MMPs in neurological disorders.
Main Methods:
- Literature review and synthesis of existing research on MMPs in CNS diseases.
- Analysis of MMP involvement in multiple sclerosis, Alzheimer's disease, and glioma.
Main Results:
- MMPs contribute to inflammatory cell infiltration, myelin destruction, and blood-brain barrier disruption in multiple sclerosis.
- MMPs may mediate amyloid-beta deposition in Alzheimer's disease.
- MMPs influence glioma cell invasiveness and angiogenesis, but may also aid CNS injury recovery.
Conclusions:
- The specific MMP and its cellular source dictate whether it promotes disease or aids recovery in the CNS.
- Targeted inhibition of specific MMPs may offer therapeutic benefits for various CNS diseases.