Fig. 1
From: LRP1 expression in microglia is protective during CNS autoimmunity
LRP1 expression is increased in MS lesions. a Immunohistochemistry on consecutive sections from an early active (EA) MS lesion (upper row) shows: (1) myelin (PLP) laden macrophages consistent with ongoing demyelinating activity, (2) abundant macrophage infiltration (CD68), (3) hypertrophic reactive astrocytes indicating gliosis (GFAP), and (4) LRP1 immunoreactivity present on both astrocytes (arrowhead) and macrophages (arrow and inset). In contrast, the periplaque gray matter (PPGM, lower row) shows: (1) normal appearing myelin (PLP), (2) limited microglial reactivity (CD68), (3) astrocytes with regular size and morphology (GFAP), and (4) limited LRP1 immunoreactivity. (Scale bars = 20 μm). b Luxol Fast Blue histology (LFB) and immunofluorescence for CD68 and LRP1 shows that myeloid cells express LRP1 within the lesion (Scale bar = 100 μm)