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Immunoexpression of MMP-8 and MMP-9 in chronic subdural hematoma

Gao-Jian Su1, Di Zhang1, Jia-Nuo Wu1

  • 1Department of Neurosurgery, Shenzhen Key Laboratory of Neurosurgery, The First Affiliated Hospital of Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, China.

Frontiers in Neurology
|September 5, 2022
PubMed

Insights

Matrix metallopeptidase-8 (MMP-8) and MMP-9 are expressed in chronic subdural hematoma (CSH). Their levels in CSH suggest a role in angiogenesis, potentially impacting CSH development.

Area of Science:

  • Neurosurgery
  • Pathology
  • Biochemistry

Background:

  • Chronic subdural hematoma (CSH) is a significant neurosurgical condition.
  • The underlying pathobiology of CSH, particularly the role of specific enzymes, requires further elucidation.

Purpose of the Study:

  • To investigate the expression and potential role of matrix metallopeptidase-8 (MMP-8) and MMP-9 in the development of CSH.
  • To analyze the concentrations of MMP-8 and MMP-9 in patients with CSH compared to a normal group.

Main Methods:

  • Analysis of hematoma fluid and peripheral blood from CSH patients and a control group.
  • Differential gene expression analysis to identify key markers.
  • Immunohistochemistry to confirm protein expression in CSH membranes.

Main Results:

  • MMP-8 concentration was significantly higher in the normal group than in CSH patients (preoperative and postoperative).
  • MMP-9 concentration was significantly lower in the normal group compared to CSH patients.
  • Immunohistochemistry confirmed the presence of MMP-8 and MMP-9 within CSH membranes.

Conclusions:

  • This study provides evidence for the expression of MMP-8 and MMP-9 in CSH.
  • The observed expression patterns of MMP-8 and MMP-9 suggest their involvement in angiogenesis during CSH formation.
Keywords:
chronic subdural hematomadifferential gene expressiondisease developmentimmunoexpressionmatrix metallopeptidase

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