Impacts of Blast-Induced Traumatic Brain Injury on Expressions of Hepatic Cytochrome P450 1A2, 2B1, 2D1, and 3A2 in Rats

被引:0
|
作者
Jie Ma
Junrui Wang
Jingmin Cheng
Wenjing Xiao
Kaihua Fan
Jianwen Gu
Botao Yu
Guangfu Yin
Juan Wu
Jiandong Ren
Jun Hou
Yan Jiang
Yonghong Tan
Weihua Jin
机构
[1] Chengdu Military General Hospital,Department of Pharmacy
[2] Chengdu Second People’s Hospital,Department of Orthopaedics
[3] Chengdu Military General Hospital,Department of Neurosurgery
[4] The 306th Hospital of PLA,Department of Neurosurgery
[5] Sichuan University,College of Materials Science and Engineering
来源
Cellular and Molecular Neurobiology | 2017年 / 37卷
关键词
Blast traumatic brain injury; Cytochrome 450; Cytokine; Inflammation;
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学科分类号
摘要
The hepatic cytochrome P450 (CYP450) enzyme superfamily is one of the most important drug-metabolizing enzyme systems, which is responsible for the metabolism of a large number of clinically relevant medications used in traumatic brain injury (TBI) therapy. Modification of CYP450 expression may have important influences on drug metabolism and lead to untoward effects on those with narrow therapeutic windows. However, the impact of blast-induced TBI (bTBI) on the expression of CYP450 has received little attention. The subfamilies of CYP1A, 2B, 2D, and 3A account for about 85 % of all human drug metabolism of clinical significance. Therefore, in this study, we investigated the expressions of hepatic CYP1A2, CYP2B1, CYP2D1, and CYP3A2 in rats suffering bTBI. Meanwhile, we also measured some important cytokines in serum after injury, and calculated the correlation between these cytokines and the expressions of CYP1A2, CYP2B1, CYP2D1, and CYP3A2. The results showed that bTBI could significantly reduce mRNA expressions of CYP1A2, CYP2D1, and CYP3A2 at the early stage and induce the expressions from 48 h to 1 week after injury. The protein expressions of these CYP450s had all been downregulated from 24 to 48 h post- injury, and then began to elevate at 48 h after bTBI. The cytokines, IL-1β, IL-2, IL-6, and TNF-α, increased significantly in the early phase, and began to reduce at the delayed phase of bTBI. The serum levels of IL-1β, IL-6, and TNF-α but not IL-2 were significantly negative correlated with the mRNA expressions of CYP2B1 and CYP2D1 and the proteins expressions of CYP1A2, CYP2B1, CYP2D1, and CYP3A2. In conclusion, our work has, for the first time, indicated that bTBI has significant impact on the expressions of CYP1A2, CYP2B1, CYP2D1, and CYP3A2, which may be related to the cytokines induced by the injury.
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页码:111 / 120
页数:9
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