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. 2018 Dec 4;9:2766. doi: 10.3389/fmicb.2018.02766

FIGURE 1.

FIGURE 1

Generation of microglia-containing BS (μBS). Immortalized Human Microglia – SV40 were incorporated to 7 week-differentiated BS by gravity as described in materials and methods. (A) Diagram of μBS generation procedure. (B) Comparison between μBS and BS using different microglia markers (TMEM119, Mertk, Axl) and hematoxylin/eosin (HE). (C) Confocal images of immunohistochemistry for the microglia marker IBA1 (green), the neuronal marker NF200 (red), and nuclear staining (Hoechst 33342, blue) in μBS, 48 h after microglia incorporation. (D) Details of microglia aggregations in μBS. Green arrow indicates microglia cluster and red arrow indicates the BS. Bars represent 100 μm (B), 50 μm (C, upper panel), 20 μm (C, all other panels), and 50 μm (D).