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. 2016 Jun 8;189:52–56. doi: 10.1016/j.clim.2016.05.009

Fig. 2.

Fig. 2

Elevated CXCL1 expression is associated with increased demyelination. Histopathological analysis of spinal cords of double tg mice reveals an increase in demyelination. (A) Representative luxol fast blue (LFB)-stained spinal cords reveals increased (p < 0.05) demyelination in JHMV-infected Dox-treated double tg mice compared to single tg controls. (B) Flow cytometric analysis revealed a significant increase in the frequency and total number of neutrophils within the spinal cord of JHMV-infected Dox-treated double tg mice compared to single tg mice. Representative immunofluorescence staining further demonstrated a significant increase in the number of Ly6B.2-positive neutrophils (yellow arrowheads) within the spinal cord parenchyma of JHMV-infected double tg compared to single tg mice; red arrowheads indicate neutrophils located within the spinal cord meninges. Quantification of neutrophils within the spinal cords indicated an overall increase (p < 0.05) in Dox-treated double tg mice compared to Dox-treated single tg mice. (C) Representative LFB-stained spinal cord sections from JHMV-infected double tg mice treated with either control IgG2a or anti-Ly6G antibody between days 3–15 p.i. Quantification of the severity of demyelination revealed reduced white matter damage in mice treated with anti-Ly6G antibody compared to mice treated with isogenic IgG2a control antibody. Images adapted from [26] with permission.