Cell-Free Mitochondrial DNA in Acute Brain Injury.

Cell-Free Mitochondrial DNA in Acute Brain Injury.
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急性脑损伤中的游离线粒体DNA

DOI:
10.1089/neur.2022.0032
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发表时间:
2022
影响因子:
2.4
通讯作者:
Chinnery, Patrick F.
Chinnery, Patrick F.
中科院分区:
其他
文献类型:
--
作者:
Kayhanian, Saeed;Glynos, Angelos;Mair, Richard;Lakatos, Andras;Hutchinson, Peter J. A.;Helmy, Adel E.;Chinnery, Patrick F.

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创伤性脑损伤和蛛网膜下腔出血是世界范围内发病率和死亡率的主要原因。治疗选择仍然有限,并且受到我们对细胞和分子机制的理解的阻碍,包括在大脑中观察到的炎症反应。线粒体DNA(mtDNA)已被证明通过充当损伤相关分子模式(DAMP)来激活先天性炎症反应。在这里,我们发现脑损伤后48小时内脑脊液(CSF)和血清中循环无细胞(ccf)mtDNA水平升高。CSF ccf-mtDNA水平与临床严重程度和白细胞介素-6细胞因子反应相关。这些发现支持使用ccf-mtDNA作为与炎症性疾病机制相关的急性脑损伤后的生物标志物。
Traumatic brain injury and aneurysmal subarachnoid haemorrhage are a major cause of morbidity and mortality worldwide. Treatment options remain limited and are hampered by our understanding of the cellular and molecular mechanisms, including the inflammatory response observed in the brain. Mitochondrial DNA (mtDNA) has been shown to activate an innate inflammatory response by acting as a damage-associated molecular pattern (DAMP). Here, we show raised circulating cell-free (ccf) mtDNA levels in both cerebrospinal fluid (CSF) and serum within 48 h of brain injury. CSF ccf-mtDNA levels correlated with clinical severity and the interleukin-6 cytokine response. These findings support the use of ccf-mtDNA as a biomarker after acute brain injury linked to the inflammatory disease mechanism.
循环线粒体 DAMP 会引起对损伤的炎症反应。
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