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Secretory proteases from cultured rat microglia. Kazuyuki NAKAJIMA 1 , Shinichi KOHSAKA 1 1Department of Neurochemistry, National Institute of Neuroscience pp.697-708
Published Date 1992/10/10
DOI https://doi.org/10.11477/mf.1431900266
  • Abstract
  • Look Inside

Microglia are histochemically found to be widely distributed throughout the perinatal and matured brain and are considered to act in normal homeostasis involving a regulation of neuronal activity and extracellular environment. When microglia were activated in injured site or pathological state, they proliferate, migrate and are thought to work as scavenger cells. However the direct role or function of microglia in the brain has been remained unclear.

In recent years, the methods for isolating microglia have been developed wnich made it possible to study the properties of microglia and intercellular interaction between microglia and other cells. In vitro studies demonstrated that microglia have on ability of antigen presentation and produce cytokines such as IL-1, IL-6, TNF and growth factors like NGF and bFGF. We also showed cultured micro-glia secrete relatively strong proteolytic enzymes into the medium. These proteases were biochemically characterized and now three kinds of proteases were identified, elastase, plasminogen activator and plasminogen.


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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