Abstract:
:Microglia have recently been established as key regulators of brain development. However, their role in neuronal subtype specification remains largely unknown. Using three different co-culture setups, we show that microglia-secreted factors enhance dopaminergic differentiation of somatic and induced pluripotent stem cell-derived human neural stem cells (NSCs). The effect was consistent across different NSC and microglial cell lines and was independent of prior microglial activation, although restricted to microglia of embryonic origin. We provide evidence that the effect is mediated through reduced cell proliferation and decreased apoptosis and necrosis orchestrated in a sequential manner during the differentiation process. tumor necrosis factor alpha, interleukin-1β, and insulinlike growth factor 1 are identified as key mediators of the effect and shown to directly increase dopaminergic differentiation of human NSCs. These findings demonstrate a positive effect of microglia on dopaminergic neurogenesis and may provide new insights into inductive and protective factors that can stimulate in vitro derivation of dopaminergic neurons.
journal_name
Stem Cell Reportsjournal_title
Stem cell reportsauthors
Schmidt SI,Bogetofte H,Ritter L,Agergaard JB,Hammerich D,Kabiljagic AA,Wlodarczyk A,Lopez SG,Sørensen MD,Jørgensen ML,Okarmus J,Serrano AM,Kristensen BW,Freude K,Owens T,Meyer Mdoi
10.1016/j.stemcr.2020.12.011subject
Has Abstractpub_date
2021-01-06 00:00:00issn
2213-6711pii
S2213-6711(20)30506-3pub_type
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