Acta Neuropathologica

, Volume 131, Issue 3, pp 323–345

Astrocytes: a central element in neurological diseases

  • Milos Pekny
  • Marcela Pekna
  • Albee Messing
  • Christian Steinhäuser
  • Jin-Moo Lee
  • Vladimir Parpura
  • Elly M. Hol
  • Michael V. Sofroniew
  • Alexei Verkhratsky
Review

DOI: 10.1007/s00401-015-1513-1

Cite this article as:
Pekny, M., Pekna, M., Messing, A. et al. Acta Neuropathol (2016) 131: 323. doi:10.1007/s00401-015-1513-1

Abstract

The neurone-centred view of the past disregarded or downplayed the role of astroglia as a primary component in the pathogenesis of neurological diseases. As this concept is changing, so is also the perceived role of astrocytes in the healthy and diseased brain and spinal cord. We have started to unravel the different signalling mechanisms that trigger specific molecular, morphological and functional changes in reactive astrocytes that are critical for repairing tissue and maintaining function in CNS pathologies, such as neurotrauma, stroke, or neurodegenerative diseases. An increasing body of evidence shows that the effects of astrogliosis on the neural tissue and its functions are not uniform or stereotypic, but vary in a context-specific manner from astrogliosis being an adaptive beneficial response under some circumstances to a maladaptive and deleterious process in another context. There is a growing support for the concept of astrocytopathies in which the disruption of normal astrocyte functions, astrodegeneration or dysfunctional/maladaptive astrogliosis are the primary cause or the main factor in neurological dysfunction and disease. This review describes the multiple roles of astrocytes in the healthy CNS, discusses the diversity of astroglial responses in neurological disorders and argues that targeting astrocytes may represent an effective therapeutic strategy for Alexander disease, neurotrauma, stroke, epilepsy and Alzheimer’s disease as well as other neurodegenerative diseases.

Keywords

Astrocytes Astroglial cells Reactive astrogliosis Reactive gliosis Astrocytopathies Neurotrauma Stroke Epilepsy Alzheimer’s disease Alexander disease Huntington disease Neurological diseases 

Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Milos Pekny
    • 1
    • 2
    • 3
  • Marcela Pekna
    • 1
    • 2
    • 3
  • Albee Messing
    • 4
  • Christian Steinhäuser
    • 5
  • Jin-Moo Lee
    • 6
  • Vladimir Parpura
    • 7
  • Elly M. Hol
    • 8
    • 9
    • 10
  • Michael V. Sofroniew
    • 11
  • Alexei Verkhratsky
    • 12
    • 13
    • 14
    • 15
  1. 1.Department of Clinical Neuroscience and RehabilitationCenter for Brain Repair and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of GothenburgGothenburgSweden
  2. 2.Florey Institute of Neuroscience and Mental HealthParkvilleAustralia
  3. 3.University of NewcastleNew South WalesAustralia
  4. 4.Waisman CenterUniversity of Wisconsin-MadisonMadisonUSA
  5. 5.Medical faculty, Institute of Cellular NeurosciencesUniversity of BonnBonnGermany
  6. 6.Department of NeurologyThe Hope Center for Neurological Disorders, Washington University School of MedicineSt. LouisUSA
  7. 7.Department of NeurobiologyCivitan International Research Center, Center for Glial Biology in Medicine, Evelyn F. McKnight Brain Institute, Atomic Force Microscopy and Nanotechnology Laboratories, University of Alabama at BirminghamBirminghamUSA
  8. 8.Department of Translational NeuroscienceBrain Center Rudolf Magnus, University Medical Center UtrechtUtrechtThe Netherlands
  9. 9.Netherlands Institute for Neuroscience, An Institute of the Royal Netherlands Academy of Arts and SciencesAmsterdamThe Netherlands
  10. 10.Swammerdam Institute for Life Sciences, Center for NeuroscienceUniversity of AmsterdamAmsterdamThe Netherlands
  11. 11.Department of NeurobiologyUniversity of CaliforniaLos AngelesUSA
  12. 12.Faculty of Life SciencesThe University of ManchesterManchesterUK
  13. 13.Achucarro Center for Neuroscience, IKERBASQUE, Basque Foundation for ScienceBilbaoSpain
  14. 14.Department of NeurosciencesUniversity of the Basque Country UPV/EHU and CIBERNEDLeioaSpain
  15. 15.University of Nizhny NovgorodNizhny NovgorodRussia