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. 2019 Aug 9;13:758. doi: 10.3389/fnins.2019.00758

FIGURE 4.

FIGURE 4

Myeloid cells and neuronal circuit re-establishment. Myeloid cells such as microglia can modify neuronal activity and stimulate the NSCs to sprout axons and rebuild synaptic networks. IL-4 induced M2 myeloid cells and BMP antagonist induced iron-releasing microglia protect oligodendrocytes through different mechanisms, such as enhancing remyelination and oligodendrogenesis, which all contribute to the re-establishment of the neuronal circuit. NSC, neural stem cells; IL-4, interleukin 4; BMP, bone morphogenetic protein.