Disrupted molecular organization at nodes. (A,B) Sections of control
(A) or compressed nerves (CNC, 2 weeks) (B) are
immunostained as indicated. (B) Neurofascin (NF) and Caspr staining
on the right side of the nodes are remarkably reduced and dispersed. Arrowheads
indicate disrupted clusters of NF. (C,D) Sections of control
(C) or compressed nerves (2 weeks) (D) are
immunostained for gliomedin (Gldn) in green, ankyrinG (AnkG) in red, and NF in
blue. (D) Gliomedin and NF are partially co-localized with
disorganized nodal ankyrinG clusters (arrowheads). (E) Section of
compressed nerve (2 weeks) is immunostained for gliomedin in green and NF in
red. The paranode on the right side of the node is disrupted (asterisk), whereas
the gliomedin cluster is preserved (arrowhead). Arrow indicates NF155 enriched
at inner mesaxon of the myelin. (F,G) Sections of control
(F) or compressed nerves (2 weeks) (G) are
immunostained for βIV spectrin (βIV) in green, and NF in red.
(G) Clusters of both βIV spectrin and NF are
disorganized. (H) Section of compressed nerve (2 weeks) is
immunostained for NF in red and Caspr in green. Arrowheads indicate heminodal NF
clusters that are present very close. Scale bars = 10 μm
(A–H).