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Li Y, Fan F, Liu Q. Cytisine-N-methylene-(5,7,4 '-trihydroxy)- isoflavone ameliorates ischemic stroke-induced brain injury in mouse by regulating the oxidative stress and BDNF-Trkb/Akt pathway. Eur J Pharmacol 2024; 974:176512. [PMID: 38493912 DOI: 10.1016/j.ejphar.2024.176512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 02/28/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
BACKGROUND A novel compound Cytisine-N-methylene-(5,7,4'-trihydroxy)- isoflavone (LY01) found in the Sophora alopecuroides L is a neuroprotective agent. However, the effect and potential mechanism of LY01 treatment for ischemic stroke (IS) have not been fully elucidated. AIM OF THE STUDY The aim of this study is to demonstrate whether LY01 can rescue ischemic stroke-induced brain injury and oxygen-glucose deprivation/reperfusion (OGD/R). RESULTS Our results show that intragastric administration of LY01 improves ischemic stroke behaviors in mice, as demonstrated by neurological score, infarct volume, cerebral water content, rotarod test for activity. Compared with the model group, the ginkgo biloba extract (EGb) and LY01 reversed the neurological score, infarct volume, cerebral water content, rotarod test in model mice. Further analysis showed that the LY01 rescued oxidative stress in the model mice, which was reflected in the increased levels of catalase, superoxide dismutase, total antioxidant capacity and decreased levels of malondialdehyde in the serum of the model mice. Moreover, the expression of the brain-derived neurotrophic factor brain-derived neurotrophic factor (BDNF), phosphorylated protein kinase B (p-Akt), Bax, Bcl-2, (p)-tropomysin related kinase B (p-Trkb) was restored and the expression of Bax, glial fibrillary acidic protein (GFAP) in the brains of the model mice was inhibited through LY01 treatment. In the polymerase chain reaction (PCR) data, after giving LY01, the expression in the brains of model mice was that, IL-10 increased and IL-1β, Bax, Bcl-2 decreased. Furthermore, the results indicated that LY01 improved cell viability, reactive oxygen species content, and mitochondrial membrane potential dissipation induced by OGD/R in primary culture of rat cortical neurons. Bax and caspase-3 activity was upregulated compared to the before after treatment with LY01. CONCLUSIONS Our study suggests that LY01 reversed ischemic stroke by reducing oxidative stress and activating the BDNF-TrkB/Akt pathway and exerted a neuroprotective action against OGD/R injury via attenuation, a novel approach was suggested to treat ischemic stroke. Our observations justify the traditional use of LY01 for a treatment of IS in nervous system.
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Affiliation(s)
- Yongbiao Li
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Center on Translational Neuroscience, Minzu University of China, 100081, Beijing, China
| | - Fangcheng Fan
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Center on Translational Neuroscience, Minzu University of China, 100081, Beijing, China
| | - Qingshan Liu
- Key Laboratory of Ethnomedicine of Ministry of Education, School of Pharmacy, Center on Translational Neuroscience, Minzu University of China, 100081, Beijing, China.
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Hasseldam H, Rasmussen RS, El Ali HH, Johansen FF. N-acetyl aspartate levels early after ischemic stroke accurately reflect long-term brain damage. Heliyon 2024; 10:e24233. [PMID: 38293500 PMCID: PMC10825333 DOI: 10.1016/j.heliyon.2024.e24233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 11/24/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Abstract
Background Estimation of brain damage following an ischemic stroke is most often performed within the first few days after the insult, where large amounts of oedematous fluid have accumulated. This can potentially hamper correct measurement of infarcted area, since oedema formation poorly reflects infarct size. This study presents a non-invasive, easily applicable and reliable method to accurately predict long-term evolution and late-stage infarction. Objective We performed a longitudinal analysis of brain infarct evolution after MCAO in mice, in order to determine whether water-compensated N-Acetylaspartate (NAA) levels in the infarct area, measured 24 h after the insult, is a suitable marker for late-stage infarction and thereby prognosis. Methods Twenty mice were divided into 4 groups and scanned longitudinally at different time-points after MCAO, followed by euthanisation for histology: Group 1) MRI/MRS at day 1 after MCAO (n = 4), Group 2) MRI/MRS at days 1 and 7 after MCAO (n = 5), Group 3) MRI/MRS at days 1, 7, and 14 after MCAO (n = 3), and Group 4) MRI/MRS at days 1, 7, 14, and 28 after MCAO (n = 4). At days 1, 7, 14, and 28, NAA levels were correlated with histological determination of neuronal death based on Nissl and H&E stainings. Results Twenty-four hours after the insult, NAA levels in the infarcted area decreased by 35 %, but steadily returned to normal after 28 days. In the acute phases, NAA levels strongly correlated with loss of Nissl substance (r2 = -0.874, p = 0.002), whereas NAA levels in later stages reflect glial metabolism and tissue reorganisation. Most importantly, NAA levels 24 h after MCAO was highly correlated with late stage infarction at days 14 and 28 (r2 = 0.73, p = 0.01), in contrast to T2 (r2 = 0.06, p = 0.59). Conclusions By using a fixed voxel, which is easily positioned in the affected area, it is possible to obtain reliable measures of the extent of neuronal loss at early time points independent of oedema and brain deformation. Importantly, NAA levels 24 h after MCAO accurately reflects late-stage infarction, suggesting that NAA is a useful prognostic biomarker early after an ischemic stroke.
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Affiliation(s)
| | | | - Henrik Hussein El Ali
- University of Copenhagen, Department of Biomedical Sciences, 2200 Copenhagen, Denmark
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Azami S, Forouzanfar F. Potential role of Nigella Sativa and its Constituent (Thymoquinone) in Ischemic Stroke. Curr Mol Med 2024; 24:327-334. [PMID: 37038292 DOI: 10.2174/1566524023666230410101724] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 04/12/2023]
Abstract
Ischemic stroke is one of the major causes of global mortality, which puts great demands on health systems and social welfare. Ischemic stroke is a complex pathological process involving a series of mechanisms such as ROS accumulation, Ca2+ overload, inflammation, and apoptosis. The lack of effective and widely applicable pharmacological treatments for ischemic stroke patients has led scientists to find new treatments. The use of herbal medicine, as an alternative or complementary therapy, is increasing worldwide. For centuries, our ancestors had known the remedial nature of Nigella sativa (Family Ranunculaceae) and used it in various ways, either as medicine or as food. Nowadays, N. sativa is generally utilized as a therapeutic plant all over the world. Most of the therapeutic properties of this plant are attributed to the presence of thymoquinone which is the major biological component of the essential oil. The present review describes the pharmacotherapeutic potential of N. sativa in ischemic stroke that has been carried out by various researchers. Existing literature highlights the protective effects of N. sativa as well as thymoquinone in ischemia stroke via different mechanisms including anti-oxidative stress, anti-inflammation, anti-apoptosis, neuroprotective, and vascular protective effects. These properties make N. sativa and thymoquinone promising candidates for developing potential agents for the prevention and treatment of ischemic stroke.
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Affiliation(s)
- Shakiba Azami
- Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Forouzanfar
- Neuroscience Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Neuroscience, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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4
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Zhang Y, Yu L, Zhou S, He Y, Jin W, Wan H, Yang J. A comparative study of the protective effects of Guhong injection and its component on cerebral ischemia-reperfusion injury based on the oxidation index. Brain Res 2023; 1819:148532. [PMID: 37586676 DOI: 10.1016/j.brainres.2023.148532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/18/2023]
Abstract
Guhong injection (GHI), a compound preparation of Chinese and Western medicine, is composed of safflower water extract and aceglutamide, and has a certain therapeutic effect on cerebral ischemia diseases. In this study, we investigated and compared the protective effects of GHI, Honghua injection (HHI), and aceglutamide (ACG) on cerebral ischemia-reperfusion injury in Sprague-Dawley (SD) rats randomly assigned to the following 5 groups: Sham, MCAO, MCAO + GHI, MCAO + HHI, and MCAO + ACG. The results revealed that GHI, HHI, and ACG improved neurological functions and reduced the infarct volume, the contents of HIF-1α, PKC, and EPO, and the expression of NOX-4 and HIF-1α mRNA. The protein expression of HIF-1α and iNOS treated with GHI, HHI, and ACG was decreased, while that of PHD2 was increased. Meanwhile, the BrdU+/NeuN+ cell counts of SGZ and SVZ areas in the brain tissues of the GHI, HHI, and ACG groups were greater than those of the MCAO rats. Thus, GHI, HHI, and ACG can confer protection against cerebral ischemia-reperfusion injury, possibly through antioxidation. Our research findings may provide evidence for the effectiveness of the combination of traditional Chinese and Western medicine.
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Affiliation(s)
- Yangyang Zhang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
| | - Li Yu
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
| | - Saiya Zhou
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
| | - Yu He
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
| | - Weifeng Jin
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
| | - Haitong Wan
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
| | - Jiehong Yang
- School of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, Zhejiang 310053, PR China.
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Liu J, Chen J, Zhang J, Fan Y, Zhao S, Wang B, Wang P. Mechanism of Resveratrol Improving Ischemia-Reperfusion Injury by Regulating Microglial Function Through microRNA-450b-5p/KEAP1/Nrf2 Pathway. Mol Biotechnol 2023; 65:1498-1507. [PMID: 36656498 DOI: 10.1007/s12033-022-00646-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 12/23/2022] [Indexed: 01/20/2023]
Abstract
Alterations in the M1/M2 polarization phenotype significantly affect disease progression. Antioxidant and anti-inflammatory protective effects of resveratrol (Res) have been demonstrated. This paper tested the hypothesis that Res could protect against cerebral ischemia-reperfusion injury (CI/RI) by modulating microglial polarization via the miR-450b-5p/KEAP1/Nrf2 pathway. Rats were first treated with Res and adenovirus that interfered with miR-450b-5p or KEAP1, and then established a middle cerebral artery occlusion-reperfusion model using modified nylon sutures. Rats were then evaluated for neurological and behavioral functions, and markers of M2 microglia were detected by immunofluorescence staining. Additionally, the signature patterns of miR-450b-5p, KEAP1, and Nrf2 were determined. The collected data demonstrated that Res exerted neuroprotective effects in CI/RI by promoting microglial M2 polarization. Additionally, Res could regulate the Nrf2 pathway by targeting KEAP1 by up-regulating miR-450b-5p. Up-regulating miR-450b-5p or down-regulating KEAP1 could further promote the protective effect of Res, while down-regulating miR-450b-5p or up-regulating KEAP1 worked oppositely. Our study demonstrates that Res exerts neuroprotective effects on microglial M2 polarization through the miR-450b-5p/KEAP1/Nrf2 pathway during CI/RI.
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Affiliation(s)
- JiaHui Liu
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China
| | - JinYu Chen
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China
| | - JinFeng Zhang
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China
| | - Yu Fan
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China
| | - ShiJun Zhao
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China
| | - BaoJun Wang
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China
| | - Po Wang
- Department of Neurology, Inner Mongolia Baotou Central Hospital, No. 61 Ring Roads, Donghe District, Baotou, 014040, Inner Mongolia Autonomous Region, China.
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Wang A, Zhao W, Yan K, Huang P, Zhang H, Ma X. Preclinical Evidence of Paeoniflorin Effectiveness for the Management of Cerebral Ischemia/Reperfusion Injury: A Systematic Review and Meta-Analysis. Front Pharmacol 2022; 13:827770. [PMID: 35462929 PMCID: PMC9032804 DOI: 10.3389/fphar.2022.827770] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 03/24/2022] [Indexed: 01/01/2023] Open
Abstract
Background: Vessel recanalization is the main treatment for ischemic stroke; however, not all patients benefit from it. This lack of treatment benefit is related to the accompanying ischemia-reperfusion (I/R) injury. Therefore, neuroprotective therapy for I/R Injury needs to be further studied. Paeonia lactiflora Pall. is a commonly used for ischemic stroke management in traditional Chinese medicine; its main active ingredient is paeoniflorin (PF). We aimed to determine the PF’s effects and the underlying mechanisms in instances of cerebral I/R injury.Methods: We searched seven databases from their inception to July 2021.SYRCLE’s risk of bias tool was used to assess methodological quality. Review Manager 5.3 and STATA 12.0 software were used for meta-analysis.Results: Thirteen studies, including 282 animals overall, were selected. The meta-analyses showed compared to control treatment, PF significantly reduced neurological severity scores, cerebral infarction size, and brain water content (p = 0.000). In the PF treatment groups, the apoptosis cells and levels of inflammatory factors (IL-1β) decreased compared to those in the control groups (p = 0.000).Conclusion: Our results suggest that PF is a promising therapeutic for cerebral I/R injury management. However, to evaluate the effects and safety of PF in a more accurate manner, additional preclinical studies are necessary.
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Affiliation(s)
- Anzhu Wang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Wei Zhao
- Yidu Central Hospital of Weifang, Weifang, China
| | - Kaituo Yan
- Yidu Central Hospital of Weifang, Weifang, China
| | - Pingping Huang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Hongwei Zhang
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaochang Ma
- Xiyuan Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- National Clinical Research Center for Chinese Medicine Cardiology, Beijing, China
- *Correspondence: Xiaochang Ma,
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7
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Zhang Q, Zhu D, Li Q. LncRNA CRNDE exacerbates neuropathic pain in chronic constriction injury-induced(CCI) rats through regulating miR-146a-5p/WNT5A pathway. Bioengineered 2021; 12:7348-7359. [PMID: 34612146 PMCID: PMC8806618 DOI: 10.1080/21655979.2021.1972901] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Neuropathic pain (NP) originating from a dysfunction in the nervous system is often intractable and chronic. Many studies have implicated long noncoding RNAs (lncRNAs) in the physiological and pathological development of NP. The lncRNA colorectal neoplasia differentially expressed gene (CRNDE) has been shown to mediate NP progression. However, further investigations are needed to gain deeper understanding of the specific mechanisms governing CRNDE in NP etiopathology. In this study, we successfully used chronic constrictive injury (CCI)-induced rats to establish an NP model with intrathecal injection, and confirmed the upregulation of CRNDE in CCI-induced rats. Moreover, silencing of CRNDE relieved mechanical allodynia, thermal hyperalgesia, and neuroinflammation in the NP model. Bioinformatics analysis predicted that miR-146a-5p binds to CRNDE. Our findings validated that miR-146a-5p was a target of CRNDE and that the expression of miR-146a-5p was decreased in CCI rats. Furthermore, miR-151A-3p was found to exert a negative regulatory effect on WNT5A. In addition, knockdown of WNT5A alleviated the pain-related behavior and inflammatory response of NP in vivo. Finally, we demonstrated that CRNDE contributed to the progression of CCI-induced NP via competitive binding to miR-146a-5p to upregulate WNT5A. The present study offers novel insights that may be translated into improved therapies for NP.
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Affiliation(s)
- Qiangze Zhang
- Department of Pain, Ji'nan People's Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong China
| | - Dongxia Zhu
- Department of Traditional Chinese Medicine, Ji'nan People's Hospital Affiliated to Shandong First Medical University, Ji'nan, Shandong China
| | - Qiang Li
- Department of Infectious Diseases Division, Laiwu People's Hospital, Ji'nan, Shandong China
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8
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Han Z, Li L, Liu P, Huang Y, Zhang S, Li G, Li F, Zhao H, Tao Z, Wang R, Ma Q, Luo Y. Metabolic Adjustments by LncRNAs in Peripheral Neutrophils Partly Account for the Complete Compensation of Asymptomatic MMD Patients. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2021; 19:306-317. [PMID: 32552656 DOI: 10.2174/1871527319666200618150827] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 01/31/2023]
Abstract
BACKGROUND Due to the recent development of non-invasive examinations, more asymptomatic patients with Moyamoya Disease (MMD) have been diagnosed than ever. However, its underlying molecular mechanisms and clinical intervention guidelines are all still obscure. METHODS Microarray was used to explore those differentially expressed mRNAs and lncRNAs in peripheral neutrophils of asymptomatic MMD patients. Then enrichment analyses based on Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) for those differentially expressed mRNAs and lncRNA associated mRNAs were performed for underlying molecular mechanisms. RESULTS Here, we identified a total of 2824 differentially expressed lncRNAs and 522 differentially expressed mRNAs (fold change > 2 and P<0.05) in peripheral neutrophils of asymptomatic MMD patients, compared with healthy controls. Then enrichment analyses based on GO and KEGG showed that the neighboring protein-coding mRNAs of those up-regulated and down-regulated lncRNAs were mainly involved in distinct metabolic processes respectively, which may act as a complementary response to insufficient blood supplies in MMD. Further enrichment analyses of those differentially expressed mRNAs preferentially listed essential physiological processes such as peptide cross-linking, chromatin assembly among others. Moreover, altered mRNAs also revealed to be enriched in renin secretion, platelet activation, inflammation and others. CONCLUSION We demonstrated for the first time that metabolic adjustments by dysregulated lncRNAs in peripheral neutrophils might partially account for the complete compensation of asymptomatic MMD patients. In addition, more attention should be paid on renin secretion and platelet activation in order to better understand the pathogenesis and guide clinical intervention for asymptomatic MMDs.
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Affiliation(s)
- Ziping Han
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Lingzhi Li
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ping Liu
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yuyou Huang
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Sijia Zhang
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Guangwen Li
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Fangfang Li
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Haiping Zhao
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China
| | - Zhen Tao
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Rongliang Wang
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Qingfeng Ma
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Yumin Luo
- Institute of Cerebrovascular Diseases Research, Department of Neurology, and Department of Neurosurgery of Xuanwu Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China.,Beijing Institute for Brain Disorders, Beijing, China
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Xie Z, Rahman I, Goniewicz ML, Li D. Perspectives on Epigenetics Alterations Associated with Smoking and Vaping. FUNCTION (OXFORD, ENGLAND) 2021; 2:zqab022. [PMID: 35330676 PMCID: PMC8788872 DOI: 10.1093/function/zqab022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Revised: 04/03/2021] [Accepted: 04/21/2021] [Indexed: 01/11/2023]
Abstract
Epigenetic alterations, including DNA methylation, microRNA, and long noncoding RNA, play important roles in the pathogenesis of numerous respiratory health conditions and diseases. Exposure to tobacco smoking has been found to be associated with epigenetic changes in the respiratory tract. Marketed as a less harmful alternative to combustible cigarettes, electronic cigarette (e-cigarette) has rapidly gained popularity in recent years, especially among youth and young adults. Accumulative evidence from both animal and human studies has shown that e-cigarette use (vaping) is also linked to similar respiratory health conditions as observed with cigarette smoking, including wheezing, asthma, and COPD. This review aims to provide an overview of current studies on associations of smoking and vaping with epigenetic alterations in respiratory cells and provide future research directions in epigenetic studies related to vaping.
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Affiliation(s)
- Zidian Xie
- Department of Clinical & Translational Research, University of Rochester Medical Center, Rochester, NY, USA
| | - Irfan Rahman
- Department of Environmental Medicine, University of Rochester Medical Center, Rochester, NY, USA
| | - Maciej L Goniewicz
- Department of Health Behavior, Roswell Park Comprehensive Cancer Center, Elm and Carlton Streets, Buffalo, NY, USA
| | - Dongmei Li
- Department of Clinical & Translational Research, University of Rochester Medical Center, Rochester, NY, USA,Address correspondence to D.L. (e-mail: )
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10
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Xing F, Liu Y, Dong R, Cheng Y. miR-374 improves cerebral ischemia reperfusion injury by targeting Wnt5a. Exp Anim 2021; 70:126-136. [PMID: 33116025 PMCID: PMC7887619 DOI: 10.1538/expanim.20-0034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 09/24/2020] [Indexed: 12/11/2022] Open
Abstract
To date, studies have demonstrated the potential functions of microRNAs in cerebral ischemia reperfusion (IR) injury. Herein, we established a middle cerebral artery occlusion (MCAO) model in rats and then subjected them to reperfusion to explore the role of microRNA-374 (miR-374) in cerebral IR injury. After reperfusion, the endogenous miR-374 level decreased, and the expression of its target gene, Wnt5a, increased in brain tissues. Intracerebral pretreatment of miR-374 agomir attenuated cerebral damage induced by IR, including neurobehavioral deficits, infarction, cerebral edema and blood-brain barrier disruption. Moreover, rats pretreated with miR-374 agomir showed a remarkable decrease in apoptotic neurons, which was further confirmed by reduced BAX expression as well as increased BCL-2 and BCL-XL expression. A dual-luciferase reporter assay substantiated that Wnt5a was the target gene of miR-374. miR-374 might protect against brain injury by downregulating Wnt5a in rats after IR. Thus, our study provided a novel mechanism of cerebral IR injury from the perspective of miRNA regulation.
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Affiliation(s)
- Fangyuan Xing
- Department of Neurology, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000, People's Republic of China
| | - Yongrong Liu
- Department of Ultrasound, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000, People's Republic of China
| | - Ruifang Dong
- Department of Neurology, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000, People's Republic of China
| | - Ye Cheng
- Department of Neurology, Cangzhou Central Hospital, No. 16 Xinhua West Road, Cangzhou, Hebei 061000, People's Republic of China
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11
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Matveev DV, Kuznetsov MR, Matveev AD, Evteev AV, Fedorov EE. [Reperfusion syndrome: state of the art]. ANGIOLOGII︠A︡ I SOSUDISTAI︠A︡ KHIRURGII︠A︡ = ANGIOLOGY AND VASCULAR SURGERY 2020; 26:176-183. [PMID: 33332321 DOI: 10.33529/angio2020421] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Reperfusion syndrome is a complex series of clinical manifestations resulting from restoration of blood flow to previously ischaemic tissues. It is accompanied by damage to cells, tissues and organs at various levels, followed by the development of multiple organ failure. This review deals with the main pathophysiological mechanisms of the development of reperfusion syndrome in lesions of cardiac, cerebral and lower-limb vessels. Oxidative stress is considered to be the most important marker of ischaemia-reperfusion injury irrespective of the type of tissues affected. Presented herein are the data on contemporary possibilities of influencing various stages and components of the development of reperfusion injury by means of drug therapy, demonstrating that due to the importance of oxidative stress as a key link of reperfusion injury, antioxidant therapy should be the main component of prevention and treatment of reperfusion injury.
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Affiliation(s)
- D V Matveev
- Department of Surgery, Russian Medical Academy of Continuous Professional Education, RF Ministry of Public Health, Moscow, Russia
| | - M R Kuznetsov
- Institute of Cluster Oncology named after L.L. Levshin, I.M. Sechenov First Moscow Medical University, Moscow, Russia
| | - A D Matveev
- Department of Surgery, Russian Medical Academy of Continuous Professional Education, RF Ministry of Public Health, Moscow, Russia
| | - A V Evteev
- Scientific Company "Flamena", Reutov, Moscow Region, Russia
| | - E E Fedorov
- Surgical Department #1, Municipal Clinical Hospital #29 named after N.E. Bauman, Moscow, Russia
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Hong G, Yan Y, Zhong Y, Chen J, Tong F, Ma Q. Combined Ischemic Preconditioning and Resveratrol Improved Bloodbrain Barrier Breakdown via Hippo/YAP/TAZ Signaling Pathway. CNS & NEUROLOGICAL DISORDERS-DRUG TARGETS 2020; 18:713-722. [PMID: 31642795 DOI: 10.2174/1871527318666191021144126] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 09/12/2019] [Accepted: 09/13/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Transient Ischemia/Reperfusion (I/R) is the main reason for brain injury and results in disruption of the Blood-Brain Barrier (BBB). It had been reported that BBB injury is one of the main risk factors for early death in patients with cerebral ischemia. Numerous investigations focus on the study of BBB injury which have been carried out. OBJECTIVE The objective of this study was to investigate the treatment function of the activation of the Hippo/Yes-Associated Protein (YAP) signaling pathway by combined Ischemic Preconditioning (IPC) and resveratrol (RES) before brain Ischemia/Reperfusion (BI/R) improves Blood-Brain Barrier (BBB) disruption in rats. METHODS Sprague-Dawley (SD) rats were pretreated with 20 mg/kg RES and IPC and then subjected to 2 h of ischemia and 22 h of reperfusion. The cerebral tissues were collected; the cerebral infarct volume was determined; the Evans Blue (EB) level, the brain Water Content (BWC), and apoptosis were assessed; and the expressions of YAP and TAZ were investigated in cerebral tissues. RESULTS Both IPC and RES preconditioning reduced the cerebral infarct size, improved BBB permeability, lessened apoptosis, and upregulated expressions of YAP and transcriptional co-activator with PDZ-binding motif (TAZ) compared to the Ischemia/Reperfusion (I/R) group, while combined IPC and RES significantly enhanced this action. CONCLUSION combined ischemic preconditioning and resveratrol improved blood-brain barrier breakdown via Hippo/YAP/TAZ signaling pathway.
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Affiliation(s)
- Ganji Hong
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Ying Yan
- Department of Rehabilitation Medicine, Zhejiang Chinese Medical University, The Third Clinical Medicine, Hangzhou, Zhejiang, China
| | - Yali Zhong
- College of Life Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
| | - Jianer Chen
- Department of Rehabilitation Medicine, The Third Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, China
| | - Fei Tong
- School of Pharmaceutical Science, Guangdong Provincial Key Laboratory of New Drug Screening, Southern Medical University, Guangzhou, 510515, China.,Department of Pathology and Pathophysiology, Provincial Key Discipline of Pharmacology, Jiaxing University Medical College, Jiaxing, China.,Department of Endocrinology and Diabetes, The First Affiliated Hospital, Xiamen University, Xiamen, China
| | - Qilin Ma
- Department of Neurology, The First Affiliated Hospital of Xiamen University, Xiamen, China
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13
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Cui L, Cao W, Xia Y, Li X. Ulinastatin alleviates cerebral ischemia-reperfusion injury in rats by activating the Nrf-2/HO-1 signaling pathway. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1136. [PMID: 33240985 PMCID: PMC7576027 DOI: 10.21037/atm-20-5115] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Background Ulinastatin, a urinary trypsin inhibitor, is one of the widely used auxiliary drugs in the rescue of acute circulatory failure. This study aims to explore the protective mechanisms of ulinastatin on cerebral ischemia-reperfusion (I/R) injury. Methods A cerebral MCAO was established with middle cerebral artery occlusion (MCAO) in Sprague Dawley (SD) rats. Western blotting was employed to show protein expression. Oxidative stress markers [reactive oxygen species (ROS), superoxide dismutase (SOD), malondialdehyde (MDA), and glutathione (GSH)] and inflammatory cytokines (IL-6, IL-1β, and IL-18) were analyzed to show oxidative stress and inflammation. Hematoxylin and eosin (HE) and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) and triphenyltetrazolium chloride (TTC) staining were applied to show brain injury. Results HE, TUNEL and TTC staining indicated that ulinastatin significantly ameliorated cerebral I/R injury and reduced apoptotic cells in the MCAO brain tissue. Ulinastatin also reduced the MCAO-induced expression of intercellular adhesion molecule 1(ICAM-1)/caspase-3. Additionally, the highly expressed ROS, MDA and inflammatory cytokines (IL-6, IL-1β and IL-18) were significantly suppressed, and the inhibited SOD and GSH were recovered with ulinastatin treatment. Consequently, the expression of nuclear factor erythroid-2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) (which was significantly inhibited by MCAO) was re-activated by ulinastatin and/or TBHQ (an Nrf-2 activator), and treatment with ML-385 (an Nrf-2 inhibitor) blocked the inhibition of apoptosis, inflammation, and oxidative stress by ulinastatin. Our results indicate that the Nrf-2/HO-1 signaling pathway may be involved in the pharmacological mechanism of ulinastatin in cerebral I/R injury. Conclusions Ulinastatin protected against inflammation and oxidative stress in cerebral I/R injuries via activation of the Nrf-2/HO-1 signaling pathway.
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Affiliation(s)
- Lei Cui
- Department of Neurology, Affiliated Hospital of Hebei University, Baoding, China
| | - Wei Cao
- Department of Neurology, Affiliated Hospital of Hebei University, Baoding, China
| | - Yanmin Xia
- Department of Neurology, Affiliated Hospital of Hebei University, Baoding, China
| | - Xiaofang Li
- Department of Neurology, Affiliated Hospital of Hebei University, Baoding, China
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14
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Li L, Cui P, Ge H, Shi Y, Wu X, Fan Ru Z. miR-188-5p inhibits apoptosis of neuronal cells during oxygen-glucose deprivation (OGD)-induced stroke by suppressing PTEN. Exp Mol Pathol 2020; 116:104512. [PMID: 32745469 DOI: 10.1016/j.yexmp.2020.104512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/08/2020] [Accepted: 07/22/2020] [Indexed: 01/07/2023]
Abstract
The miRNAs and mRNAs are found to play a crucial role in modulating different diseases including stroke, according to the recent evidence. The current study is aimed at assessing the functional role played by miR-188-5p in the regulation of cell apoptosis and viability in OGD-induced human neural cell line HNC. With the help of RT-qPCR, the authors determined miR-188-5p as well as its putative target PTEN among OGD-treated cells in different treatment times. The cell viability was assessed through CCK-8 assay while the cell transfection either upregulated or may have silenced the genes. Both Western Blot as well as RT-qPCR found the proliferation biomarkers such as Ki87 and PCNA in addition to apoptosis biomarkers such as caspase-8 and caspase-3. The luciferase activity was tracked by conducting luciferase assay. The researchers observed an elevation in the expression of miR-188-5p while the PTEN got downregulated in Human Neural Cell line HNC with increase in the time span. The expressions of miR-188-5p and PTEN got increased with increasing OGD treatment time while the Luciferase reassured the binding site. The cell viability was suppressed by the overexpression of miR-188-5p which further inhibited the apoptosis biomarkers too. Meanwhile, it was understood that the results could be reversed to some extent with the inhibition of PTEN. The study findings from in vitro investigations yielded promising results and provided excellent insights about the fundamental molecular mechanisms of miR-188-5p involved in stroke via PTEN. This could be considered as a potential therapeutic axis among stroke patients in the near future.
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Affiliation(s)
- Lijing Li
- Department of Pharmacy, The Hospital Affiliated to Chengde Medical College, Chengde, Hebei 067000, China.
| | - Penghua Cui
- Department of Gynecology, The Hospital Affiliated to Chengde Medical College, Chengde, Hebei 067000, China
| | - Huimin Ge
- Department of Pharmacy, The Hospital Affiliated to Chengde Medical College, Chengde, Hebei 067000, China
| | - Yanjing Shi
- Department of Pharmacy, The Hospital Affiliated to Chengde Medical College, Chengde, Hebei 067000, China
| | - Xiaoguang Wu
- Institute of Traditional Chinese Medicine, Chengde Medical College, Chengde, Hebei 067000,China
| | - Zhang Fan Ru
- Department of Neurology, The First Affiliated Hospital of University of South China, 69th Chuanshan Road, Hengyang, Hunan 421001, China
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Forouzanfar F, Asgharzade S. MicroRNAs in Noise-Induced Hearing Loss and their Regulation by Oxidative Stress and Inflammation. Curr Drug Targets 2020; 21:1216-1224. [PMID: 32538724 DOI: 10.2174/1389450121666200615145552] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/20/2022]
Abstract
Noise exposure (NE) has been recognized as one of the causes of sensorineural hearing loss (SNHL), which can bring about irreversible damage to sensory hair cells in the cochlea, through the launch of oxidative stress pathways and inflammation. Accordingly, determining the molecular mechanism involved in regulating hair cell apoptosis via NE is essential to prevent hair cell damage. However, the role of microRNAs (miRNAs) in the degeneration of sensory cells of the cochlea during NE has not been so far uncovered. Thus, the main purpose of this study was to demonstrate the regulatory role of miRNAs in the oxidative stress pathway and inflammation induced by NE. In this respect, articles related to noise-induced hearing loss (NIHL), oxidative stress, inflammation, and miRNA from various databases of Directory of Open Access Journals (DOAJ), Google Scholar, PubMed; Library, Information Science & Technology Abstracts (LISTA), and Web of Science were searched and retrieved. The findings revealed that several studies had suggested that up-regulation of miR-1229-5p, miR-451a, 185-5p, 186 and down-regulation of miRNA-96/182/183 and miR-30b were involved in oxidative stress and inflammation which could be used as biomarkers for NIHL. There was also a close relationship between NIHL and miRNAs, but further research is required to prove a causal association between miRNA alterations and NE, and also to determine miRNAs as biomarkers indicating responses to NE.
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Affiliation(s)
- Fatemeh Forouzanfar
- Medical Toxicology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samira Asgharzade
- Cellular and Molecular Research Center, Basic Health Sciences Institute, Shahrekord University of Medical Sciences, Shahrekord, Iran
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