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Título: | Microglia-Secreted Factors Enhance Dopaminergic Differentiation of Tissue- and iPSC-Derived Human Neural Stem Cells |
Autor: | Schmidt, Sissel Ida; Bogetofte, Helle; Ritter, Louise; Agergaard, Jette Bach; Hammerich, Ditte; Arslanagic Kabiljagic, Amina; Wlodarczyk, Agnieszka; García López, Silvia; Sørensen, Mia Dahl; Jørgensen, Mie Lærkega°rd; Okarmus, Justyna; Martínez-Serrano, Alberto CSIC ORCID; Kristensen, Bjarne Winther; Freude, Kristine; Owens, Trevor; Meyer, Morten | Fecha de publicación: | 9-feb-2021 | Citación: | Stem Cell Reports 16: 281- 294 (2021) | Resumen: | In this article, Schmidt and colleagues show that differentiating human NSCs in co-culture with microglia enhance dopaminergic differentiation. The effect is consistent across different NSC and microglial cell lines but restricted to microglia of embryonic origin. TNFα, IL-1β, and IGF1 are identified as key mediators of the effect, providing new insights into factors stimulating dopaminergic differentiation.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. | Versión del editor: | http://dx.doi.org/10.1016/j.stemcr.2020.12.011 | URI: | http://hdl.handle.net/10261/266606 | DOI: | 10.1016/j.stemcr.2020.12.011 | Identificadores: | doi: 10.1016/j.stemcr.2020.12.011 issn: 2213-6711 |
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