Preprint Review Version 1 This version is not peer-reviewed

Glial Bridge Ecology: Cellular Mechanisms that Drive Spinal Cord Regeneration in Zebrafish

Version 1 : Received: 22 May 2018 / Approved: 22 May 2018 / Online: 22 May 2018 (12:09:09 CEST)

How to cite: Schuster, C.J.; Kao, R.M. Glial Bridge Ecology: Cellular Mechanisms that Drive Spinal Cord Regeneration in Zebrafish. Preprints 2018, 2018050303 (doi: 10.20944/preprints201805.0303.v1). Schuster, C.J.; Kao, R.M. Glial Bridge Ecology: Cellular Mechanisms that Drive Spinal Cord Regeneration in Zebrafish. Preprints 2018, 2018050303 (doi: 10.20944/preprints201805.0303.v1).

Abstract

Zebrafish have been found to be the premier model organism in biological and biomedical research, specifically offering many advantages in developmental biology and genetics. This unique aquatic species has been found to have the capacity to regenerate their spinal cord after injury. However, the complete molecular and cellular mechanisms behind glial bridge formation in the central and peripheral nervous systems upon glial cell injury remains unclear. This review paper focuses on the molecular mechanisms and cellular processes that underlie spinal cord regeneration in four initial phases: proliferation and initial migration; migration and differentiation; glial bridge formation; and remodeling. We propose that within these four phases the cellular mechanisms that underlie spinal cord regeneration each express a terminating signal that aborts one step of the process and initiates the next. Specifically, future studies would be devoted to investigate transmitting signals in the spinal cord injury micro-environment in hope to contribute to the understanding of underlying cellular mechanisms by connecting each process of spinal cord regeneration in zebrafish.

Subject Areas

glial bridge; ctgfa; Fgf signaling; MAPK signaling; shh; slit2/3; Wnt signaling; genetic compensation; glial bridge cycle; spinal cord regeneration; termination signal; central nervous system; peripheral nervous system; zebrafish

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