Pro-regenerative macrophages are well known for their role in promoting tissue repair; however, their specific roles in promoting regeneration of the injured nerve are not well defined. Specifically, how macrophages interact with Schwann cells following injury during remyelination has been largely unexplored. We demonstrate that after injury, including in humans, macrophages function to clear debris and persist within the nerve microenvironment. Macrophage ablation immediately preceding remyelination results in an increase in immature Schwann cell density, a reduction in remyelination, and long-term deficits in conduction velocity. Targeted RNA-seq of macrophages from injured nerve identified Gas6 as one of several candidate factors involved in regulating Schwann cell dynamics. Functional studies show that the absence of Gas6 within monocyte lineage cells impairs Schwann cell remyelination within the injured nerve. These results demonstrate a role for macrophages in regulating Schwann cell function during nerve regeneration and highlight a molecular mechanism by which this occurs.
Pubmed ID: 30184491 RIS Download
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View all literature mentionsThis polyclonal targets Rat IL-6
View all literature mentionsThis monoclonal targets Neuronal Class III beta-Tubulin (TUJ1) Purified
View all literature mentionsThis unknown targets O4 clone 81 Alexa Fluor 488 Conjugate
View all literature mentionsThis polyclonal targets Human p75
View all literature mentionsThis polyclonal targets Gas6 (H-140)
View all literature mentionsThis polyclonal targets Human HB-EGF
View all literature mentionsThis polyclonal targets SOX2
View all literature mentionsThis monoclonal targets Ki-67
View all literature mentionsThis polyclonal targets Mouse MMR
View all literature mentionsThis monoclonal targets Ly-6C
View all literature mentionsThis monoclonal targets Cd68
View all literature mentionsThis unknown targets Rabbit anti rat CX3CR1 pAb
View all literature mentionsThis polyclonal targets Iba1
View all literature mentionsThis polyclonal targets S100 isolated from cow brain.
View all literature mentions