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. 2024 Jul 30;18:1407975. doi: 10.3389/fncel.2024.1407975

Figure 3.

Figure 3

CD4-directed immunohistochemical labeling of the olfactory bulb. (A–C) In control sections, CD4+ cells were not seen within OB tissue; only a few CD4+ T cells were restricted to the meningeal surface (arrows). (D,E) In EAE sections, numerous CD4+ T cells infiltrated the ONL from the meningeal side and reached the GL and EPL. (F) CD4+ cells around the blood vessels. Scale bar: (A,D) 1,000 μm; (B,E) 200 μm; (C,F) 100 μm. GCL, granule cell layer; GL, glomerular layer; EPL, external plexiform layer; MCL, mitral cell layer; ONL, olfactory nerve layer.