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Kuang X, Chen S, Lao J, Chen Y, Jia D, Tu L, Ma L, Liao X, Zhao W, Li Q. HDAC9 in the Injury of Vascular Endothelial Cell Mediated by P38 MAPK Pathway. J Interferon Cytokine Res 2021; 41:439-449. [PMID: 34935488 DOI: 10.1089/jir.2021.0050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Ischemic stroke caused by atherosclerosis (AS) poses a serious threat to human life expectancy and quality. With the development of genome-wide association studies, the association of histone deacetylase 9 (HDAC9) expression of atheromatous plaques with ischemic stroke in large arteries has been revealed, but the molecular mechanisms behind this phenomenon have not been elucidated. In this study, we explored the effect of HDAC9 on the P38 mitogen activated protein kinase (P38 MAPK), a classic cellular inflammation-related pathway, by knocking down HDAC9 in vascular endothelial cells with short hairpin RNA (shRNA) and found that HDAC9 may mediate oxidized low density lipoprotein (ox-LDL)-induced inflammatory injury in vascular endothelial cells by regulating the phosphorylation level of P38 MAPK to lead to AS. It can be seen that HDAC9 may be a target to control the formation of atherosclerotic plaques. In follow-up experiments, it was verified that sodium valproate (SVA), as a HDAC9 inhibitor, can indeed antagonize the inflammatory damage of vascular endothelial cells, as well as SB203580, which is a P38 MAPK inhibitor. It proves that SVA may be a potential drug for the prevention and treatment of ischemic stroke.
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Affiliation(s)
- Xi Kuang
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Shuang Chen
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Jitong Lao
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Yongmin Chen
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Dandan Jia
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Linzhi Tu
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Lin Ma
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Xiaoping Liao
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Wenjie Zhao
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
| | - Qifu Li
- Department of Neurology, The First Affiliated Hospital of Hainan Medical University, Haikou, China.,Key Laboratory of Brain Science Research & Transformation in Tropical Environment of Hainan Province, Haikou, China
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Zhou J, Cao L, Feng X, Zhou B, Li L. Octreotide-mediated neurofunctional recovery in rats following traumatic brain injury. Role of H2S, Nrf2 and TNF-α. Acta Cir Bras 2021; 36:e361204. [PMID: 35239813 PMCID: PMC8867716 DOI: 10.1590/acb361204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 11/19/2021] [Indexed: 11/22/2022] Open
Abstract
Purpose: To explore the role and mechanisms of octreotide in neurofunctional recovery in the traumatic brain injury (TBI) model. Methods: Rats were subjected to midline incision followed by TBI in the prefrontal cortex region. After 72 hours, the behavioural and neurological deficits tests were performed, which included memory testing on Morris water maze for 5 days. Octreotide (15 and 30 mg/kg i.p.) was administered 30 minutes before subjecting to TBI, and its administration was continued for three days. Results: In TBI-subjected rats, administration of octreotide restored on day 4 escape latency time (ELT) and increased the time spent in the target quadrant (TSTQ) on day 5, suggesting the improvement in learning and memory. It also increased the expression of H2S, Nrf2, and cystathionine-γ-lyase (CSE) in the prefrontal cortex, without any significant effect on cystathionine-β-synthase. Octreotide also decreased the TNF-α levels and neurological severity score. However, co-administration of CSE inhibitor (D,L-propargylglycine) abolished octreotide-mediated neurofunctional recovery, decreased the levels of H2S and Nrf2 and increased the levels of TNF-α. Conclusions: Octreotide improved the neurological functions in TBI-subjected rats, which may be due to up-regulation of H2S biosynthetic enzyme (CSE), levels of H2S and Nrf2 and down-regulation of neuroinflammation.
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Affiliation(s)
- Jie Zhou
- Department of Neurosurgery - General Hospital of TISCO, China
| | - Li Cao
- The 940th Hospital of Joint Logistics Support Force of PLA, China
| | - Xia Feng
- Tianjin First Central Hospital, China
| | | | - Linshan Li
- Shuangqiao Economic and Technological Development Zone People’s Hospital, China
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Zhang Y, Zhang M, Yu J, Zhu W, Wang Q, Pan X, Gao X, Yang J, Sun H. Mode-Dependent Effect of Xenon Inhalation on Kainic Acid-Induced Status Epilepticus in Rats. Front Cell Neurosci 2019; 13:375. [PMID: 31474835 PMCID: PMC6702968 DOI: 10.3389/fncel.2019.00375] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 07/30/2019] [Indexed: 12/21/2022] Open
Abstract
Previous studies have reported the possible neuroprotective effects of xenon treatment. The purpose of this study was to define the range of effective xenon ratio, most effective xenon ratio, and time-window for intervention in the kainic acid (KA) – induced status epilepticus (SE) rat model. Different ratios of xenon (35% xenon, 21% oxygen, 44% nitrogen, 50% xenon, 21% oxygen, 29% nitrogen, 70% xenon, 21% oxygen, and 9% nitrogen) were used to treat the KA-induced SE. Our results confirmed the anti-seizure role of 50 and 70% xenon mixture, with a stronger effect from the latter. Further, 70% xenon mixture was dispensed at three time points (0 min, 15 min delayed, and 30 min delayed) after KA administration, and the results indicated the anti-seizure effect at all treated time points. The results also established that the neuronal injury in the hippocampus and entorhinal cortex (EC), assessed using Fluoro-Jade B (FJB) staining, were reversed by the xenon inhalation, and within 30 min after KA administration. Our study, therefore, indicates the appropriate effective xenon ratio and time-window for intervention that can depress seizures. The prevention of neuronal injury and further reversal of the loss of effective control of depress network in the hippocampus and EC may be the mechanisms underlying the anti-seizure effect of xenon.
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Affiliation(s)
- Yurong Zhang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Mengdi Zhang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Jie Yu
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Wei Zhu
- Shandong Academy of Medical Sciences, Jinan, China
| | - Qiaoyun Wang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Xiaohong Pan
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Xue Gao
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Jing Yang
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
| | - Hongliu Sun
- School of Pharmaceutical Sciences, Binzhou Medical University, Yantai, China
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