Stem cell biology in traumatic brain injury

Effects of injury and strategies for repair: A review

R. Mark Richardson, Amanpreet Singh, Dong Sun, Helen L. Fillmore, W. Dalton Dietrich, Ross Bullock

Research output: Contribution to journalArticle

79 Citations (Scopus)

Abstract

Approximately 350,000 individuals in the US are affected annually by severe and moderate traumatic brain injuries (TBI) that may result in long-term disability. This rate of injury has produced - 3.3 million disabled survivors in the US alone. There is currently no specific treatment available for TBI other than supportive care, but aggressive prehospital resuscitation, rapid triage, and intensive care have reduced mortality rates. With the recent demonstration that neurogenesis occurs in all mammals (including man) throughout adult life, albeit at a low rate, the concept of replacing neurons lost after TBI is now becoming a reality. Experimental rodent models have shown that neurogenesis is accelerated after TBI, especially in juveniles. Two approaches have been followed in these rodent models to test possible therapeutic approaches that could enhance neuronal replacement in humans after TBI. The first has been to define and quantify the phenomenon of de novo hippocampal and cortical neurogenesis after TBI and find ways to enhance this (for example by exogenous trophic factor administration). A second approach has been the transplantation of different types of neural progenitor cells after TBI. In this review the authors discuss some of the processes that follow after acute TBI including the changes in the brain microenvironment and the role of trophic factor dynamics with regard to the effects on endogenous neurogenesis and gliagenesis. The authors also discuss strategies to clinically harness the factors influencing these processes and repair strategies using exogenous neural progenitor cell transplantation. Each strategy is discussed with an emphasis on highlighting the progress and limiting factors relevant to the development of clinical trials of cellular replacement therapy for severe TBI in humans.

Original languageEnglish
Pages (from-to)1125-1138
Number of pages14
JournalJournal of Neurosurgery
Volume112
Issue number5
DOIs
StatePublished - May 1 2010

Fingerprint

Cell Biology
Stem Cells
Wounds and Injuries
Neurogenesis
Rodentia
Traumatic Brain Injury
Triage
Cell Transplantation
Critical Care
Resuscitation
Brain Injuries
Survivors
Mammals
Theoretical Models
Therapeutics
Transplantation
Clinical Trials
Neurons
Mortality
Brain

Keywords

  • Cell transplantation
  • Neural progenitors
  • Neurogenesis
  • Traumatic brain injury

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

Cite this

Stem cell biology in traumatic brain injury : Effects of injury and strategies for repair: A review. / Richardson, R. Mark; Singh, Amanpreet; Sun, Dong; Fillmore, Helen L.; Dalton Dietrich, W.; Bullock, Ross.

In: Journal of Neurosurgery, Vol. 112, No. 5, 01.05.2010, p. 1125-1138.

Research output: Contribution to journalArticle

Richardson, R. Mark ; Singh, Amanpreet ; Sun, Dong ; Fillmore, Helen L. ; Dalton Dietrich, W. ; Bullock, Ross. / Stem cell biology in traumatic brain injury : Effects of injury and strategies for repair: A review. In: Journal of Neurosurgery. 2010 ; Vol. 112, No. 5. pp. 1125-1138.
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