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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Spinal+Cord+Med
2015 ; 38
(6
): 745-53
Nephropedia Template TP
gab.com Text
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English Wikipedia
Necroptosis, a novel type of programmed cell death, contributes to early neural
cells damage after spinal cord injury in adult mice
#MMPMID24970278
Liu M
; Wu W
; Li H
; Li S
; Huang LT
; Yang YQ
; Sun Q
; Wang CX
; Yu Z
; Hang CH
J Spinal Cord Med
2015[Nov]; 38
(6
): 745-53
PMID24970278
show ga
BACKGROUND: Necroptosis is an emerging programmed necrosis other than traditional
necrosis and apoptosis. Until recently, there have not been studies that have
investigated a relationship between necroptosis and pathogenesis of cell death
after spinal cord injury (SCI). OBJECTIVE: To investigate whether necroptosis
takes part in the early pathophysiological processes of traumatic SCI in mice.
METHODS: Female ICR mice were randomized equally into three groups: the sham, the
vehicle-treated + SCI group, and the Nec-1-treated + SCI group. To induce SCI,
the mice were subjected to a laminectomy at T9 and compression with a vascular
clip. After mice were sacrificed 24 hours post-SCI, propidium iodide
(PI)-positive cells were detected using in vivo PI labeling. Morphological
analyses were performed by hematoxylin and eosin staining and Nissl staining. The
samples were evaluated for apoptosis by the in situ TUNEL assay. The expression
of caspase-3 was assessed by western blot. Locomotor behavior of hindlimb was
evaluated by BMS (Basso mouse scale) score at 1, 3, 5, 7, and 14 days
post-injury. RESULTS: Compared with dimethyl sulfoxide -treated mice,
necrostatin-1-treated mice showed decreased PI-positive cells (P < 0.05),
alleviated tissue damage, more surviving neuron at 24 hours after SCI (P < 0.05),
and improved functional recovery from days 7 to 14 (P < 0.05). Necrostatin-1 did
not reduce the expression of caspase-3 and the number of TUNEL-positive cells at
24 hours after SCI (P > 0.05). CONCLUSIONS: Necroptosis contributes to
necroptotic cell death and influences functional outcome after SCI in adult mice.
The inhibition of necroptosis by necrostatin-1 may have therapeutic potential for
patients with SCI.