Endothelial sulfonylurea receptor 1–regulated NCCa-ATP channels mediate progressive hemorrhagic necrosis following spinal cord injury
J. Clin. Invest. J. Marc Simard, et al. 117:2105 doi:10.1172/JCI32041 [
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Figure 1SUR1 is upregulated in SCI. (
A) Immunohistochemical localization of SUR1 in control rats (CTR) and at different times after SCI as indicated, with montages constructed from multiple individual images and positive labeling shown in black pseudocolor. (
B) Magnified views of SUR1-immunolabeled sections taken from control and from the core (heavily labeled area in
A at 6 hours). (
C and
D) Immunolabeling of capillaries with vimentin (Vim) and colabeling with SUR1 in control rats (
C) and from the penumbra of SCI rats (tissue adjacent to the heavily labeled core in
A, 6 hours) (
D). (
E) Western blots for SUR1 of spinal cord tissue from control rats (50 μg protein), from rats 6 hours after SCI (50 μg protein), and from an equivalent amount of blood (BL; 2 μl) as is present in the injured cord. Blots are representative of 5–6 control and SCI rats. (
F and
G) In situ hybridization for
Abcc8 in control rats and in whole cords (
F) or in the penumbra (
G) 6 hours after SCI using antisense (AS) and sense (SE) as indicated. Immunohistochemistry and in situ hybridization images are representative of findings in 3–5 rats per group. Scale bars: 1 mm (
A); 100 μM (
B–
D and
G, top panels and bottom left panel); 50 μM (
G, bottom right panel).