Proliferative and migratory responses of astrocytes to in vitro injury

Zsuzsanna Környei, A. Czirók, T. Vicsek, E. Madarász

Research output: Contribution to journalArticle

73 Citations (Scopus)

Abstract

An in vitro 'scratch-wound' model was used to evoke and investigate some astroglial responses to mechanical injury. The changes in the morphology, locomotion, and proliferation of injured astrocytes were analysed under culture conditions devoid of blood-derived cells responsible for activating the inflammatory cascade. The rate of proliferation was determined by immunocytochemical detection of BrdU-incorporating cells located next to or far from the wound. The motility of individual cells and the mass-advancement of cell-assemblies were monitored by computer controlled video-microscopy both in injured monolayers and in preparations of single cells or aggregates of astrocytes. The large sets of digitalized data allowed a reliable statistical evaluation of changes in cell positions providing a quantitative approach for studies on dynamics of cell locomotion. The results indicated that cultivated astrocytes respond to injury (1) with enhanced nestin immunoreactivity at the expanding processes, (2) with increased mitotic activity exceeding the rate caused by the liberation from contact inhibition, but (3) without specific, injury-induced activation of cell locomotion. Some advantages and drawbacks of 'scratch-wound' models of astrocytic responses to mechanical injury are presented and discussed. (C) 2000 Wiley-Liss, Inc.

Original languageEnglish
Pages (from-to)421-429
Number of pages9
JournalJournal of Neuroscience Research
Volume61
Issue number4
DOIs
Publication statusPublished - Aug 15 2000

Fingerprint

Astrocytes
Wounds and Injuries
Cell Movement
Contact Inhibition
Nestin
Video Microscopy
Bromodeoxyuridine
Locomotion
In Vitro Techniques
Blood Cells

Keywords

  • Astrocytes
  • Computer controlled video-microscopy
  • In vitro trauma
  • Migration
  • Proliferation
  • Scratch-wound model

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Proliferative and migratory responses of astrocytes to in vitro injury. / Környei, Zsuzsanna; Czirók, A.; Vicsek, T.; Madarász, E.

In: Journal of Neuroscience Research, Vol. 61, No. 4, 15.08.2000, p. 421-429.

Research output: Contribution to journalArticle

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