Ultrashortwave radiation promotes the recovery of spinal cord injury by inhibiting inflammation via suppression of the MK2/TNF‑α pathway.

Abstract:

:Mitogen‑activated protein kinase‑activated protein kinase 2 (MK2) and its mediated inflammation are involved in various diseases, including spinal cord injury (SCI). Ultrashortwave (USW) radiation has previously been reported to exert a protective effect on SCI. In the present study, through a series of reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR), western blot and immunofluorescence assay, it was found that MK2 and tumor necrosis factor (TNF)‑α/interleukin (IL)‑1β were elevated in patients with SCI and in H2O2‑treated C8‑D1A cells. Through gene level and protein level detection by using of RT‑qPCR, western blot, immunofluorescence assay and terminal deoxynucleotidyl transferase (TdT) dUTP nick‑end labeling assay, it was demonstrated that USW radiation inhibited the expression of MK2/TNF‑α/IL‑1β and suppressed the apoptosis of H2O2‑treated C8‑D1A cells. Furthermore, it was confirmed that the overexpression of MK2 reversed the protective effect of USW on C8‑D1A cells, which indicated that USW achieved its function via regulation of the MK2/TNF‑α/IL‑1β pathway. Finally, using a constructed in vivo model and a series of RT‑qPCR, western blot and IHC detection, it was confirmed that USW suppressed the expression of MK2 to promote functional recovery following SCI.

journal_name

Int J Mol Med

authors

Wang N,Feng Z,Zhao W,Zhang Z,Zhang L

doi

10.3892/ijmm.2018.3786

subject

Has Abstract

pub_date

2018-10-01 00:00:00

pages

1909-1916

issue

4

eissn

1107-3756

issn

1791-244X

journal_volume

42

pub_type

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