Non-Cell-Autonomous Regulation of Optic Nerve Regeneration by Amacrine Cells

Sergeeva, Elena G. and Rosenberg, Paul A. and Benowitz, Larry I. (2021) Non-Cell-Autonomous Regulation of Optic Nerve Regeneration by Amacrine Cells. Frontiers in Cellular Neuroscience, 15. ISSN 1662-5102

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Abstract

Visual information is conveyed from the eye to the brain through the axons of retinal ganglion cells (RGCs) that course through the optic nerve and synapse onto neurons in multiple subcortical visual relay areas. RGCs cannot regenerate their axons once they are damaged, similar to most mature neurons in the central nervous system (CNS), and soon undergo cell death. These phenomena of neurodegeneration and regenerative failure are widely viewed as being determined by cell-intrinsic mechanisms within RGCs or to be influenced by the extracellular environment, including glial or inflammatory cells. However, a new concept is emerging that the death or survival of RGCs and their ability to regenerate axons are also influenced by the complex circuitry of the retina and that the activation of a multicellular signaling cascade involving changes in inhibitory interneurons – the amacrine cells (AC) – contributes to the fate of RGCs. Here, we review our current understanding of the role that interneurons play in cell survival and axon regeneration after optic nerve injury.

Item Type: Article
Subjects: Institute Archives > Medical Science
Depositing User: Managing Editor
Date Deposited: 17 Apr 2023 03:29
Last Modified: 05 Feb 2024 04:20
URI: http://eprint.subtopublish.com/id/eprint/2028

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