Traumatic brain injury: recent advances in plasticity and regeneration.

Abstract:

PURPOSE OF REVIEW:There is an urgent need for effective therapies to restore neurologic function and decrease disability following traumatic brain injury (TBI). Here, emerging findings on the mechanisms of post-TBI neural repair and regeneration, as well as therapeutic implications, are selectively reviewed. RECENT FINDINGS:Recent discoveries include the characterization of the inhibitory signaling systems within the injury site, postinjury stem cell niche activation, the role of serotonin signaling in repair, and environment enrichment. A potentially transformative finding has been the identification of exosomes, nano-sized extracellular vesicles which have key roles in cell signaling, and might serve as novel biomarkers and as vehicles for targeted delivery of repair-inducing molecules. SUMMARY:In the experimental setting, post-TBI repair can be promoted by modulation of inhibitory signaling, neurotrophic factor administration, and amplified serotonin signaling; additional strategies include mobilization of endogenous stem cell populations, exogenous cell-based therapies, and environmental enhancement. Feasibility, safety, and efficacy of these approaches need further investigation in humans. Studies are also needed to evaluate biomarkers based on molecular traces of neural repair and regeneration, which could transform prognostic and predictive modeling of post-TBI recovery trajectories.

journal_name

Curr Opin Neurol

authors

Werner JK,Stevens RD

doi

10.1097/WCO.0000000000000265

subject

Has Abstract

pub_date

2015-12-01 00:00:00

pages

565-73

issue

6

eissn

1350-7540

issn

1473-6551

journal_volume

28

pub_type

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