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Macrophages physically interact with SGCs in DRG. (A, B) Iba1+ macrophages occupy overlapping locations of GFAP+ SGCs in uninjured and 2-hour postaxotomized DRGs (arrows). (C) Iba1+ macrophages in 24-hour postaxotomized DRG elongate processes and spatially align with early activated GFAP+ SGCs (arrows). (D) Iba1+ macrophages in 3-day axotomized DRG spatially align with fully activated GFAP+ SGCs (arrows). Scale bar: 25 µm.
