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Matrix metalloproteinases in cerebral ischemia

Hahn Young Kim1, Seol-Heui Han

  • 1Department of Neurology, Konkuk University Hospital, Center for Geriatric Neuroscience Research, Institute of Biomedical Science and Technology, Konkuk University, Seoul, Korea.

Journal of Clinical Neurology (Seoul, Korea)
|April 17, 2010
PubMed

Insights

Matrix metalloproteinases (MMPs) are crucial in brain injury, impacting the blood-brain barrier and neuroinflammation. Their role shifts from damaging to beneficial, influencing recovery and regeneration based on injury stage.

Area of Science:

  • Neuroscience
  • Biochemistry

Background:

  • Matrix metalloproteinases (MMPs) are implicated in central nervous system diseases.
  • Shared pathogeneses include blood-brain barrier (BBB) disruption, neuroinflammation, oxidative stress, and extracellular matrix (ECM) remodeling.

Purpose of the Study:

  • To elucidate the dual role of MMPs in the context of brain injury.
  • To understand MMPs' involvement in BBB integrity and ECM remodeling during different injury phases.

Main Methods:

  • Review of existing literature on MMPs in CNS diseases.
  • Analysis of MMPs' functions in early ischemic injury and tissue recovery phases.

Main Results:

  • MMPs contribute to BBB disruption in early ischemic injury by degrading capillary basal lamina and ECM, causing edema and hemorrhage.
  • MMPs are essential for ECM remodeling, crucial for tissue recovery and modulating neuronal death versus regeneration.

Conclusions:

  • MMPs exhibit a 'double-edged sword' effect in brain injury.
  • Their role is context-dependent, being either deleterious or beneficial based on the specific stage of the injury and repair process.
Keywords:
Cerebral ischemiaExtracellular matrixMatrix metalloproteinaseStroke

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