Matrix Metalloprotease 3 Exacerbates Hemorrhagic Transformation and Worsens Functional Outcomes in Hyperglycemic Stroke

Sherif Hafez, Mohammed Abdelsaid, Sally El-Shafey, Maribeth H Johnson, Susan C. Fagan, Adviye Ergul

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Background and Purpose-Acute hyperglycemia worsens the clinical outcomes and exacerbates cerebral hemorrhage after stroke. The mediators of hemorrhagic transformation (HT) in hyperglycemic stroke are not fully understood. Matrix metalloproteinase 3 (MMP3) plays a critical role in the tissue-type plasminogen activator-induced HT. However, the role of MMP3 in exacerbating the HT and worsening the functional outcomes in hyperglycemic stroke remains unknown. Methods-Control/normoglycemic and hyperglycemic (blood glucose, 140-200 mg/dL) male Wistar rats were subjected to middle cerebral artery occlusion for 90 minutes and either 24 hours or 7 days reperfusion. MMP3 was inhibited pharmacologically (UK 356618, 15 mg/kg IV at reperfusion) or knocked down in the brain by shRNA lentiviral particles (injected intracerebroventricular). Neurovascular injury was assessed at 24 hours, and functional outcomes were assessed at 24 hours, day 3, and day 7. MMP3 activity was measured in brain homogenate and cerebral macrovessels. Localization of MMP3 within the neurovascular unit after hyperglycemic stroke was demonstrated by immunohistochemistry. Results-Hyperglycemia significantly increased MMP3 activity in the brain after stroke, and this was associated with exacerbated HT and worsened functional outcomes. MMP3 inhibition significantly reduced HT and improved functional outcomes. Conclusions-MMP3 plays a critical role in mediating cerebrovascular injury in hyperglycemic stroke. Our findings point out MMP3 as a potential therapeutic target in hyperglycemic stroke.

Original languageEnglish (US)
Pages (from-to)843-851
Number of pages9
JournalStroke
Volume47
Issue number3
DOIs
StatePublished - Mar 1 2016

Fingerprint

Matrix Metalloproteinase 3
Metalloproteases
Stroke
Hyperglycemia
Reperfusion
Brain
Middle Cerebral Artery Infarction
Cerebral Hemorrhage
Wounds and Injuries
Tissue Plasminogen Activator
Small Interfering RNA
Blood Glucose
Wistar Rats
Immunohistochemistry

Keywords

  • blood glucose
  • brain ischemia
  • hyperglycemia
  • intracranial hemorrhages
  • stroke

ASJC Scopus subject areas

  • Clinical Neurology
  • Cardiology and Cardiovascular Medicine
  • Advanced and Specialized Nursing

Cite this

Matrix Metalloprotease 3 Exacerbates Hemorrhagic Transformation and Worsens Functional Outcomes in Hyperglycemic Stroke. / Hafez, Sherif; Abdelsaid, Mohammed; El-Shafey, Sally; Johnson, Maribeth H; Fagan, Susan C.; Ergul, Adviye.

In: Stroke, Vol. 47, No. 3, 01.03.2016, p. 843-851.

Research output: Contribution to journalArticle

Hafez, Sherif ; Abdelsaid, Mohammed ; El-Shafey, Sally ; Johnson, Maribeth H ; Fagan, Susan C. ; Ergul, Adviye. / Matrix Metalloprotease 3 Exacerbates Hemorrhagic Transformation and Worsens Functional Outcomes in Hyperglycemic Stroke. In: Stroke. 2016 ; Vol. 47, No. 3. pp. 843-851.
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