Studying Human Brain Inflammation in Leptomeningeal and Choroid Plexus Explant Cultures

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• 作者：Mike Dragunow ; Sheryl Feng ; Justin Rustenhoven ; Maurice Curtis…
• 关键词：Pericyte ; Meningeal macrophages ; Choroid plexus ; Meningeal fibroblasts ; Scar formation ; TGFβ1 ; PDGF
• 刊名：Neurochemical Research
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：41
• 期：3
• 页码：579-588
• 全文大小：7,060 KB
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• 作者单位：Mike Dragunow (2)
  Sheryl Feng (1)
  Justin Rustenhoven (1)
  Maurice Curtis (1)
  Richard Faull (1)
  
  2. Department of Pharmacology and Clinical Pharmacology, The University of Auckland, Private Bag 92019, 1142, Auckland, New Zealand
  1. Centre for Brain Research and Brain Research New Zealand, The University of Auckland, Auckland, New Zealand
  
• 刊物类别：Biomedical and Life Sciences
• 刊物主题：Biomedicine
  Neurosciences
  Biochemistry
  Neurology
  
• 出版者：Springer Netherlands
• ISSN：1573-6903

文摘

The meninges (dura, pia and arachnoid) are critical membranes encasing and protecting the brain within the skull. The leptomeninges, which comprise the arachnoid and pia, have many functions beyond brain protection including roles in neurogenesis, fibrotic scar formation and brain inflammation. Similarly, the choroid plexus plays important roles in normal brain function but is also involved in brain inflammation. We have begun studying the role of human leptomeninges and choroid plexus in brain inflammation and leptomeninges in fibrotic scar formation, using human brain derived explant cultures. To study the composition of the cells generated in these explants we undertook immunocytochemical characterisation. Cells, mainly pericytes and meningeal macrophages, emerge from leptomeningeal explants (LME’s) and respond to inflammatory mediators by producing inflammatory molecules. LME-derived cells also respond to mechanical injury and cytokines, providing an in vitro human brain model of fibrotic scar formation. Choroid plexus explants (CPE’s) generate epithelial cells, pericytes and microglia/macrophages. CPE-derived cells also respond to inflammatory mediators. LME and CPE explants survive and generate cells for many months in vitro and provide a remarkable opportunity to study basic mechanisms of human brain inflammation and fibrosis and to test human-active anti-inflammatory and anti-scarring treatments.