PUBLICATION

Retinal ganglion cell survival after severe optic nerve injury is modulated by crosstalk between JAK/STAT signaling and innate immune responses in the zebrafish retina

Authors
Chen, S., Lathrop, K.L., Kuwajima, T., Gross, J.M.
ID
ZDB-PUB-210918-8
Date
2021
Source
Development (Cambridge, England)   149(8): (Journal)
Registered Authors
Gross, Jeffrey
Keywords
Innate immune system, JAK/STAT, Neuroprotection, RGC, Zebrafish
Datasets
GEO:GSE171426
MeSH Terms
  • Animals
  • Animals, Genetically Modified
  • Female
  • Immunity, Innate*
  • Janus Kinases/genetics
  • Janus Kinases/immunology*
  • Male
  • Optic Nerve Injuries/genetics
  • Optic Nerve Injuries/immunology*
  • Retinal Ganglion Cells/immunology*
  • STAT Transcription Factors/genetics
  • STAT Transcription Factors/immunology*
  • Signal Transduction/genetics
  • Signal Transduction/immunology*
  • Zebrafish/genetics
  • Zebrafish/immunology*
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/immunology*
PubMed
34528064 Full text @ Development
Abstract
Visual information is transmitted from the eye to the brain along the optic nerve, a structure composed of retinal ganglion cell (RGC) axons. The optic nerve is highly vulnerable to damage in neurodegenerative diseases like glaucoma and there are currently no FDA-approved drugs or therapies to protect RGCs from death. Zebrafish possess remarkable neuroprotective and regenerative abilities and here, utilizing an optic nerve transection (ONT) injury and an RNA-seq-based approach, we identify genes and pathways active in RGCs that may modulate their survival. Through pharmacological perturbation, we demonstrate that JAK/STAT pathway activity is required for RGC survival after ONT. Furthermore, we show that immune responses directly contribute to RGC death after ONT; macrophages/microglia are recruited to the retina and blocking neuroinflammation or depleting these cells after ONT rescues survival of RGCs. Taken together, these data support a model in which crosstalk between macrophages/microglia and RGCs, mediated by Jak/Stat pathway activity, regulates RGC survival after optic nerve injury.
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Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
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Mapping