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- W2970816691 abstract "Traumatic brain injury (TBI) is a leading cause of death and disability throughout the world. However, the molecular mechanism contributing to TBI still remains unclear. Protein disulfide isomerases (PDI) are a family of redox chaperones, which catalyze formation or isomerization of disulfide bonds in proteins. PDIA3, a critical member of PDI family, is a multi-functional protein, playing critical roles in modulating inflammation, apoptosis and oxidative stress under various kinds of disease conditions. Nevertheless, its regulatory effects on TBI have far from to be known. In the present study, we attempted to explore the modulation of neuroinflammatory responses by PDIA3 and its contribution to oxidative stress and cell death after TBI in the wild type (PDIA+/+) and PDIA3 knockout (PDIA3+/+) C57BL/6 mice. Results here suggested that PDIA3 expression was markedly up-regulated in the late trauma human brain tissues, which was verified in the PDIA3+/+ mice at 24 h after TBI. PDIA−/- provided significant improvements in cognitive impairments and contusion volume induced by TBI. Apoptosis in brain samples was also alleviated in TBI mice with PDIA3 deficiency. Significantly, PDIA3−/− mitigated neuroinflammation after TBI in mice, as evidenced by the reduced expression of pro-inflammatory factors interleukin (IL)-6, tumor necrosis factor-α (TNF-α) and IL-1β, while the enhanced anti-inflammatory regulator IL-10. These anti-inflammatory activities by PDIA3−/− were associated with the decrease in phosphorylated nuclear factor kappa B (NF-κB)/p65. PDIA3−/− mice following TBI showed attenuated oxidative stress, as proved by the restored superoxide dismutase (SOD) and glutathione (GSH) activities, and the down-regulated malondialdehyde (MDA) levels in brain samples. These effects regulated by PDIA3 were confirmed in OGDR-treated astrocytes. Collectively, these data demonstrated a detrimental role of PDIA3 in regulating TBI, providing an effective therapeutic target for TBI treatment in future." @default.
- W2970816691 created "2019-09-05" @default.
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- W2970816691 date "2019-10-01" @default.
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- W2970816691 title "PDIA3-regulted inflammation and oxidative stress contribute to the traumatic brain injury (TBI) in mice" @default.
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- W2970816691 doi "https://doi.org/10.1016/j.bbrc.2019.08.100" @default.
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