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Yu J, Li J, Matei N, Wang W, Tang L, Pang J, Li X, Fang L, Tang J, Zhang JH, Yan M. Intranasal administration of recombinant prosaposin attenuates neuronal apoptosis through GPR37/PI3K/Akt/ASK1 pathway in MCAO rats. Exp Neurol 2024; 373:114656. [PMID: 38114054 PMCID: PMC10922973 DOI: 10.1016/j.expneurol.2023.114656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/19/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023]
Abstract
Studies have reported that Prosaposin (PSAP) is neuroprotective in cerebrovascular diseases. We hypothesized that PSAP would reduce infarct volume by attenuating neuronal apoptosis and promoting cell survival through G protein-coupled receptor 37(GPR37)/PI3K/Akt/ASK1 pathway in middle cerebral artery occlusion (MCAO) rats. Two hundred and thirty-five male and eighteen female Sprague-Dawley rats were used. Recombinant human PSAP (rPSAP) was administered intranasally 1 h (h) after reperfusion. PSAP small interfering ribonucleic acid (siRNA), GPR37 siRNA, and PI3K specific inhibitor LY294002 were administered intracerebroventricularly 48 h before MCAO. Infarct volume, neurological score, immunofluorescence staining, Western blot, Fluoro-Jade C (FJC) and TUNEL staining were examined. The expression of endogenous PSAP and GPR37 were increased after MCAO. Intranasal administration of rPSAP reduced brain infarction, neuronal apoptosis, and improved both short- and long-term neurological function. Knockdown of endogenous PSAP aggravated neurological deficits. Treatment with exogenous rPSAP increased PI3K expression, Akt and ASK1 phosphorylation, and Bcl-2 expression; phosphorylated-JNK and Bax levels were reduced along with the number of FJC and TUNEL positive neurons. GPR37 siRNA and LY294002 abolished the anti-apoptotic effect of rPSAP at 24 h after MCAO. In conclusion, rPSAP attenuated neuronal apoptosis and improved neurological function through GPR37/PI3K/Akt/ASK1 pathway after MCAO in rats. Therefore, further exploration of PSAP as a potential treatment option in ischemic stroke is warranted.
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Affiliation(s)
- Jing Yu
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Jinlan Li
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Nathanael Matei
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA; Department of Ophthalmology, University of Southern California, Los Angeles, CA 90007, USA
| | - Wenna Wang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Lihui Tang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Jinwei Pang
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Xue Li
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - Lili Fang
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jiping Tang
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA
| | - John H Zhang
- Department of Anesthesiology and Basic Sciences, Loma Linda University, School of Medicine, Loma Linda, CA, USA.
| | - Min Yan
- Department of Anesthesiology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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Jiang J, Qi T, Li L, Pan Y, Huang L, Zhu L, Zhang D, Ma X, Qin Y. MRPS9-Mediated Regulation of the PI3K/Akt/mTOR Pathway Inhibits Neuron Apoptosis and Protects Ischemic Stroke. J Mol Neurosci 2024; 74:23. [PMID: 38381220 DOI: 10.1007/s12031-024-02197-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
Neuronal apoptosis is crucial in the pathophysiology of ischemic stroke (IS), albeit its underly24ing mechanism remaining elusive. Investigating the mechanism of neuronal apoptosis in the context of IS holds substantial clinical value for enhancing the prognosis of IS patients. Notably, the MRPS9 gene plays a pivotal role in regulating mitochondrial function and maintaining structural integrity. Utilizing bioinformatic tactics and the extant gene expression data related to IS, we conducted differential analysis and weighted correlation network analysis (WGCNA) to select important modules. Subsequent gene interaction analysis via the STRING website facilitated the identification of the key gene-mitochondrial ribosomal protein S9 (MRPS9)-that affects the progression of IS. Moreover, possible downstream signaling pathways, namely PI3K/Akt/mTOR, were elucidated via Kyoto Encyclopedia of Gene and Genomes (KEGG) and Gene Ontology (GO) pathway analysis. Experimental models were established utilizing oxygen-glucose deprivation/reoxygenation (OGD/R) in vitro and middle cerebral artery occlusion/reperfusion (MCAO/R) in mice. Changes in gene and protein expression, as well as cell proliferation and apoptosis, were monitored through qPCR, WB, CCK8, and flow cytometry. An OGD/R cell model was further employed to investigate the role of MRPS9 in IS post transfusion of MRPS9 overexpression plasmids into cells. Further studies were conducted by transfecting overexpressed cells with PI3K/Akt/mTOR signaling pathway inhibitor LY294002 to unveil the mechanism of MRPS9 in IS. Bioinformatic analysis revealed a significant underexpression of MRPS9 in ischemic stroke patients. Correspondingly, in vitro experiments with HN cells subjected to OGD/R treatment demonstrated a marked reduction in MRPS9 expression, accompanied by a decline in cell viability, and an increase cell apoptosis. Notably, the overexpression of MRPS9 mitigated the OGD/R-induced decrease in cell viability and augmentation of apoptosis. In animal models, MRPS9 expression was significantly lower in the MCAO/R group compared to the sham surgery group. Further, the KEGG pathway analysis associated MRPS9 expression with the PI3K/Akt/mTOR signaling pathway. In cells treated with the specific PI3K/Akt/mTOR inhibitor LY294002, phosphorylation levels of Akt and mTOR were decreased, cell viability decreased, and apoptosis increased compared to the MRPS9 overexpression group. These findings collectively indicate that MRPS9 overexpression inhibits PI3K/Akt/mTOR pathway activation, thereby protecting neurons from apoptosis and impeding IS progression. However, the PI3K/Akt/mTOR inhibitor LY294002 is capable of counteracting the protective effect of MRPS9 overexpression on neuronal apoptosis and IS. Our observations underscore the potential protective role of MRPS9 in modulating neuronal apoptosis and in attenuating the pathophysiological developments associated with IS. This is achieved through the regulation of the PI3K/Akt/mTOR pathway. These insights forge new perspectives and propose novel targets for the strategic diagnosis and treatment of IS.
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Affiliation(s)
- Jina Jiang
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Tingting Qi
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Li Li
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Yunzhi Pan
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Lijuan Huang
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Lijuan Zhu
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Dongyang Zhang
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Xiaoqing Ma
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China
| | - Yinghui Qin
- Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Tiefeng District, No. 3, Taishun Street, Qiqihar, China.
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Tian MY, Yang YD, Qin WT, Liu BN, Mou FF, Zhu J, Guo HD, Shao SJ. Electroacupuncture Promotes Nerve Regeneration and Functional Recovery Through Regulating lncRNA GAS5 Targeting miR-21 After Sciatic Nerve Injury. Mol Neurobiol 2024; 61:935-949. [PMID: 37672149 PMCID: PMC10861712 DOI: 10.1007/s12035-023-03613-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/24/2023] [Indexed: 09/07/2023]
Abstract
Although the benefits of electroacupuncture (EA) for peripheral nerve injury (PNI) are well accepted in clinical practice, the underlying mechanism remains incompletely elucidated. In our study, we observed that EA intervention led to a reduction in the expression of the long non-coding RNA growth-arrest-specific transcript 5 (GAS5) and an increased in miR-21 levels within the injured nerve, effectively promoting functional recovery and nerve regeneration following sciatic nerve injury (SNI). In contrast, administration of adeno-associated virus expressing GAS5 (AAV-GAS5) weakened the therapeutic effect of EA. On the other hand, both silencing GAS5 and introducing a miR-21 mimic prominently enhanced the proliferation activity and migration ability of Schwann cells (SCs), while also inhibiting SCs apoptosis. On the contrary, inhibition of SCs apoptosis was found to be mediated by miR-21. Additionally, overexpression of GAS5 counteracted the effects of the miR-21 mimic on SCs. Moreover, SCs that transfected with the miR-21 mimic promoted neurite growth in hypoxia/reoxygenation-induced neurons, which might be prevented by overexpressing GAS5. Furthermore, GAS5 was found to be widely distributed in the cytoplasm and was negatively regulated by miR-21. Consequently, the targeting of GAS5 by miR-21 represents a potential mechanism through which EA enhances reinnervation and functional restoration following SNI. Mechanistically, the GAS5/miR-21 axis can modulate the proliferation, migration, and apoptosis of SCs while potentially influencing the neurite growth of neurons.
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Affiliation(s)
- Ming-Yue Tian
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Yi-Duo Yang
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Wan-Ting Qin
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Bao-Nian Liu
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Fang-Fang Mou
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Jing Zhu
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Hai-Dong Guo
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Shui-Jin Shao
- School of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
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Liang J, Li H, Liu CD, Zhou XY, Fu YY, Ma XY, Liu D, Chen YL, Feng Q, Zhang Z, Wen XR, Zhu G, Wang N, Song YJ. TAT-W61 peptide attenuates neuronal injury through blocking the binding of S100b to the V-domain of Rage during ischemic stroke. J Mol Med (Berl) 2024; 102:231-245. [PMID: 38051341 DOI: 10.1007/s00109-023-02402-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 12/07/2023]
Abstract
Ischemic stroke is a devastative nervous system disease associated with high mortality and morbidity rates. Unfortunately, no clinically effective neuroprotective drugs are available now. In ischemic stroke, S100 calcium-binding protein b (S100b) binds to receptor for advanced glycation end products (Rage), leading to the neurological injury. Therefore, disruption of the interaction between S100B and Rage can rescue neuronal cells. Here, we designed a peptide, termed TAT-W61, derived from the V domain of Rage which can recognize S100b. Intriguingly, TAT-W61 can reduce the inflammatory caused by ischemic stroke through the direct binding to S100b. The further investigation demonstrated that TAT-W61 can improve pathological infarct volume and reduce the apoptotic rate. Particularly, TAT-W61 significantly improved the learning ability, memory, and motor dysfunction of the mouse in the ischemic stroke model. Our study provides a mechanistic insight into the abnormal expression of S100b and Rage in ischemic stroke and yields an invaluable candidate for the development of drugs in tackling ischemic stroke. KEY MESSAGES: S100b expression is higher in ischemic stroke, in association with a high expression of many genes, especially of Rage. S100b is directly bound to the V-domain of Rage. Blocking the binding of S100b to Rage improves the injury after ischemic stroke.
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Affiliation(s)
- Jia Liang
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
- Department of Pathology, Xuzhou Medical University, Xuzhou, 221004, China
| | - Hui Li
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Chang-Dong Liu
- State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, 00000, China
| | - Xiao-Yan Zhou
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yan-Yan Fu
- Department of Cell Biology and Neurobiology, Xuzhou Medical University, Xuzhou, 221004, China
| | - Xiang-Yu Ma
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Dan Liu
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Yu-Ling Chen
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Qian Feng
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Zhen Zhang
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China
| | - Xiang-Ru Wen
- Department of Chemistry, School of Pharmacy, Xuzhou Medical University, Xuzhou, 221004, China
| | - Guang Zhu
- State Key Laboratory of Molecular Neuroscience, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, 00000, China
| | - Nan Wang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou 221004, Jiangsu, China.
| | - Yuan-Jian Song
- Xuzhou Engineering Research Center of Medical Genetics and Transformation, Key Laboratory of Genetic Foundation and Clinical Application, Department of Genetics, Xuzhou Medical University, Xuzhou, 221004, China.
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou 221004, Jiangsu, China.
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5
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Wang S, Deng X, Wu Y, Wu Y, Zhou S, Yang J, Huang Y. Understanding the pathogenesis of brain arteriovenous malformation: genetic variations, epigenetics, signaling pathways, and immune inflammation. Hum Genet 2023; 142:1633-1649. [PMID: 37768356 DOI: 10.1007/s00439-023-02605-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 09/10/2023] [Indexed: 09/29/2023]
Abstract
Brain arteriovenous malformation (BAVM) is a rare but serious cerebrovascular disease whose pathogenesis has not been fully elucidated. Studies have found that epigenetic regulation, genetic variation and their signaling pathways, immune inflammation, may be the cause of BAVM the main reason. This review comprehensively analyzes the key pathways and inflammatory factors related to BAVMs, and explores their interplay with epigenetic regulation and genetics. Studies have found that epigenetic regulation such as DNA methylation, non-coding RNAs and m6A RNA modification can regulate endothelial cell proliferation, apoptosis, migration and damage repair of vascular malformations through different target gene pathways. Gene defects such as KRAS, ACVRL1 and EPHB4 lead to a disordered vascular environment, which may promote abnormal proliferation of blood vessels through ERK, NOTCH, mTOR, Wnt and other pathways. PDGF-B and PDGFR-β were responsible for the recruitment of vascular adventitial cells and smooth muscle cells in the extracellular matrix environment of blood vessels, and played an important role in the pathological process of BAVM. Recent single-cell sequencing data revealed the diversity of various cell types within BAVM, as well as the heterogeneous expression of vascular-associated antigens, while neutrophils, macrophages and cytokines such as IL-6, IL-1, TNF-α, and IL-17A in BAVM tissue were significantly increased. Currently, there are no specific drugs targeting BAVMs, and biomarkers for BAVM formation, bleeding, and recurrence are lacking clinically. Therefore, further studies on molecular biological mechanisms will help to gain insight into the pathogenesis of BAVM and develop potential therapeutic strategies.
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Affiliation(s)
- Shiyi Wang
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Xinpeng Deng
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Yuefei Wu
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Yiwen Wu
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Shengjun Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China
| | - Jianhong Yang
- Department of Neurology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China.
| | - Yi Huang
- Department of Neurosurgery, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, Zhejiang, China.
- Key Laboratory of Precision Medicine for Atherosclerotic Diseases of Zhejiang Province, Ningbo, 315010, Zhejiang, China.
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Zhong L, Luo Y, Fan J. LncRNAs: Promising Therapeutic Targets and Biomarkers for Ischemic Stroke. Transl Stroke Res 2023; 14:803-805. [PMID: 35691985 DOI: 10.1007/s12975-022-01048-x] [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: 05/14/2022] [Accepted: 06/06/2022] [Indexed: 10/18/2022]
Abstract
Ischemic stroke is one of the leading causes of mortality and disability worldwide. Currently, options for ischemic stroke clinical therapy remain limited to intravenous thrombolysis and thrombectomy, which can only be applied to a minority of patients due to narrow therapeutic time window. Therefore, the discovery of new therapeutic targets and biomarkers is of great significance for ischemic stroke therapy. Long non-coding RNAs (lncRNAs) are the most extensive ncRNA transcripts and play critical roles in different kinds of diseases. Accumulative evidence suggests that lncRNAs are widely involved in multiple pathophysiological processes of ischemic stroke, highlighting their potential role as ischemic stroke therapeutic targets. Moreover, the significantly altered expression of lncRNAs in circulation of ischemic stroke patients reveals that they may serve as diagnostic, therapeutic, and prognosis biomarkers for ischemic stroke. In this commentary, we provide an overview of the roles of lncRNAs in the pathophysiology of ischemic stroke and discuss the opportunities of lncRNAs in the diagnosis and treatment of ischemic stroke. In addition, the challenges for the clinical translation of lncRNAs in ischemic stroke are also discussed.
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Affiliation(s)
- Liyuan Zhong
- Institute of Cerebrovascular Disease Research and Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China
| | - Yumin Luo
- Institute of Cerebrovascular Disease Research and Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China.
- Beijing Municipal Geriatric Medical Research Center, Beijing, 100053, China.
- Beijing Institute for Brain Disorders, Capital Medical University, Beijing, 100053, China.
| | - Junfen Fan
- Institute of Cerebrovascular Disease Research and Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, 100053, China.
- Beijing Municipal Geriatric Medical Research Center, Beijing, 100053, China.
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Ding L, Jiang L, Xing Z, Dai H, Wei J. Map4k4 is up-regulated and modulates granulosa cell injury and oxidative stress in polycystic ovary syndrome via activating JNK/c-JUN pathway: An experimental study. Int Immunopharmacol 2023; 124:110841. [PMID: 37647682 DOI: 10.1016/j.intimp.2023.110841] [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: 04/04/2023] [Revised: 08/18/2023] [Accepted: 08/19/2023] [Indexed: 09/01/2023]
Abstract
The regulatory mechanism on granulosa cells (GCs) oxidative injury is becoming increasingly important in polycystic ovary syndrome (PCOS) studies. Serine/threonine kinase mitogen-activated protein 4 kinase 4 (Map4k4) is linked with oxidative injury and possibly associated with premature ovarian failure and ovarian dysgenesis. Herein, we investigated the function and mechanism of Map4k4 in a PCOS rat model. A microarray from GEO database identified Map4k4 was up-regulated in the ovarian of PCOS rats, and functional enrichments suggested that oxidative stress-associated changes are involved. We verified the raised Map4k4 expression in an established PCOS rat model and also in the isolated PCOS-GCs, which were consistent with the microarray data. Map4k4 knockdown in vivo contributed to regular estrous cycle, restrained steroid concentrations and ovarian injury in PCOS rats. Both Map4k4 silencing in vivo and in vitro attenuated the PCOS-related GC oxidative stress and apoptosis. Mechanically, Map4k4 activated the JNK/c-JUN signaling pathway. Importantly, a JNK agonist restored the suppressive effects of Map4k4 silencing on PCOS-induced granulosa cell injury and oxidative stress. Besides, Map4k4 may be a target gene of miR-185-5p. In conclusion, Map4k4, a potential target of miR-185-5p, is up-regulated and induces ovarian GC oxidative injury by activating JNK/c-JUN pathway in PCOS. The Map4k4/JNK/c-JUN mechanism may provide a new idea on the treatment of PCOS.
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Affiliation(s)
- Lifeng Ding
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Lili Jiang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ze Xing
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Huixu Dai
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jingzan Wei
- Center of Reproductive Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China.
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8
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Huang C, Azizi P, Vazirzadeh M, Aghaei-Zarch SM, Aghaei-Zarch F, Ghanavi J, Farnia P. Non-coding RNAs/DNMT3B axis in human cancers: from pathogenesis to clinical significance. J Transl Med 2023; 21:621. [PMID: 37705098 PMCID: PMC10500757 DOI: 10.1186/s12967-023-04510-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Accepted: 09/06/2023] [Indexed: 09/15/2023] Open
Abstract
Cancer is a complex disease with many contributing factors, and researchers have gained extensive knowledge that has helped them understand the diverse and varied nature of cancer. The altered patterns of DNA methylation found in numerous types of cancer imply that they may play a part in the disease's progression. The human cancer condition involves dysregulation of the DNA methyltransferase 3 beta (DNMT3B) gene, a prominent de novo DNA methyltransferase, and its abnormal behavior serves as an indicator for tumor prognosis and staging. The expression of non-coding RNAs (ncRNAs), which include microRNAs (miRNA), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), is critical in controlling targeted gene expression and protein translation and their dysregulation correlates with the onset of tumors. NcRNAs dysregulation of is a critical factor that influences the modulation of several cellular characteristics in cancerous cells. These characteristics include but are not limited to, drug responsiveness, angiogenesis, metastasis, apoptosis, proliferation, and properties of tumor stem cell. The reciprocal regulation of ncRNAs and DNMT3B can act in synergy to influence the destiny of tumor cells. Thus, a critical avenue for advancing cancer prevention and treatment is an inquiry into the interplay between DNMT3B and ncRNAs. In this review, we present a comprehensive overview of the ncRNAs/DNMT3B axis in cancer pathogenesis. This brings about valuable insights into the intricate mechanisms of tumorigenesis and provides a foundation for developing effective therapeutic interventions.
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Affiliation(s)
- Chunjie Huang
- Institute of Reproductive Medicine, School of Medicine, Nantong University, Nantong, 226001, China
| | - Paniz Azizi
- Department of Psychological and Brain Science, Program in Neuroscience, Indiana University Bloomington, Bloomington, IN, USA
| | - Masoud Vazirzadeh
- Department of Cell and Molecular Biology and Microbiology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Seyed Mohsen Aghaei-Zarch
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | | | - Jalaledin Ghanavi
- Mycobacteriology Research Center, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Poopak Farnia
- Mycobacteriology Research Center, National Research Institute of Tuberculosis and Lung Disease, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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9
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Huang H, Kuang X, Zou Y, Zeng J, Du H, Tang H, Long C, Mao Y, Yu X, Wen C, Yan J, Shen H. MAP4K4 is involved in the neuronal development of retinal photoreceptors. Exp Eye Res 2023; 233:109524. [PMID: 37290629 DOI: 10.1016/j.exer.2023.109524] [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: 02/14/2023] [Revised: 05/31/2023] [Accepted: 06/05/2023] [Indexed: 06/10/2023]
Abstract
Mitogen-activated protein kinase kinase kinase kinase-4 (MAP4K4) is a potential regulator of photoreceptor development. To investigate the mechanisms underlying MAP4K4 during the neuronal development of retinal photoreceptors, we generated knockout models of C57BL/6j mice in vivo and 661 W cells in vitro. Our findings revealed homozygous lethality and neural tube malformation in mice subjected to Map4k4 DNA ablation, providing evidence for the involvement of MAP4K4 in early stage embryonic neural formation. Furthermore, our study demonstrated that the ablation of Map4k4 DNA led to the vulnerability of photoreceptor neurites during induced neuronal development. By monitoring transcriptional and protein variations in mitogen-activated protein kinase (MAPK) signaling pathway-related factors, we discovered an imbalance in neurogenesis-related factors in Map4k4 -/- cells. Specifically, MAP4K4 promotes jun proto-oncogene (c-JUN) phosphorylation and recruits other factors related to nerve growth, ultimately leading to the robust formation of photoreceptor neurites. These data suggest that MAP4K4 plays a decisive role in regulating the fate of retinal photoreceptors through molecular modulation and contributes to our understanding of vision formation.
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Affiliation(s)
- Hao Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China; Department of Ophthalmology, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou, 412000, China
| | - Xielan Kuang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China; Biobank of Eye, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China
| | - Yuxiu Zou
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Jingshu Zeng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Han Du
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Han Tang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Chongde Long
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Yan Mao
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Xinyue Yu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Chaojuan Wen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China
| | - Jianhua Yan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China.
| | - Huangxuan Shen
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangzhou, 510060, China; Biobank of Eye, State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, 510060, China.
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Cao GZ, Hou JY, Zhou R, Tian LL, Wang ML, Zhang Y, Xu H, Yang HJ, Zhang JJ. Single-cell RNA sequencing reveals that VIM and IFITM3 are vital targets of Dengzhan Shengmai capsule to protect against cerebral ischemic injury. JOURNAL OF ETHNOPHARMACOLOGY 2023; 311:116439. [PMID: 37004745 DOI: 10.1016/j.jep.2023.116439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 03/23/2023] [Accepted: 03/25/2023] [Indexed: 06/19/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ischemic stroke is one of the leading causes of mortality, but therapies are limited. Dengzhan Shengmai capsule (DZSM) was included by the Chinese Pharmacopoeia 2020 and has been broadly used for the treatment of ischemic stroke. However, the mechanism of DZSM against ischemic stroke is unclear. AIM OF THE STUDY This study used RNA sequencing (RNA-seq) and single-cell RNA sequencing (scRNA-seq) to investigate the mechanism of action of DZSM against ischemic stroke. MATERIALS AND METHODS The rats were randomly divided into six groups: the Sham, I/R (water), I/R + DZSM-L (0.1134g/kg), I/R + DZSM-H (0.4536g/kg), I/R + NMDP (20mg/kg), and I/R + Ginaton (20mg/kg). The rats were administrated drugs for 5 days then followed by the ischemic brain injury caused by middle cerebral artery occlusion (MCAO). The neuroprotective effect was assessed by infraction rate, neurological deficit scores, regional cerebral blood flow (rCBF), hematoxylin and eosin (H&E) staining, and Nissl staining. Based on RNA-seq and scRNA-seq, the vital biological processes and core targets of DZSM against cerebral ischemia were revealed. Enzyme-linked immunosorbent assay (ELISA) and immunofluorescence (IF) staining were used to investigate the vital biological processes and core targets of DZSM against ischemic stroke. RESULTS Administration of DZSM significantly reduced the infarction rate and Zea Longa score, Garcia JH score, and ameliorated the reduction in rCBF. And alleviated the neuronal damage, such as increased neuronal density level and Nissl bodies density level. RNA-seq analysis revealed that DZSM played important roles in inflammation and apoptosis. ELISA and IF straining validation confirmed that DZSM significantly decreased the expression of IL-6, IL-1β, TNF-α, ICAM-1, IBA-1, MMP9, and Cleaved caspase-3 in MCAO rats. ScRNA-seq analysis identified 8 core targets in neurons including HSPB1, SPP1, MT2A, GFAP, IFITM3, VIM, CRIP1, and GPD1, and VIM and IFITM3 was verified to be decreased by DZSM in neurons. CONCLUSION Our study illustrates the neuroprotective effect of DZSM against ischemia stroke, and VIM and IFITM3 were identified as vital targets in neurons of DZSM in protecting against MCAO-induced I/R injury.
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Affiliation(s)
- Guang-Zhao Cao
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Jing-Yi Hou
- Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Rui Zhou
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Liang-Liang Tian
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Mao-Lin Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Yi Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - He Xu
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Hong-Jun Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Experimental Research Center, China Academy of Chinese Medical Sciences, Beijing, 100700, China.
| | - Jing-Jing Zhang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Chinese Institute for Brain Research, Beijing, 102206, China.
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11
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Myricetin improves apoptosis after ischemic stroke via inhibiting MAPK-ERK pathway. Mol Biol Rep 2023; 50:2545-2557. [PMID: 36611117 DOI: 10.1007/s11033-022-08238-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 12/22/2022] [Indexed: 01/09/2023]
Abstract
BACKGROUND Neuronal apoptosis is the main cause for the disabilities and deaths of patients suffered with stroke. Neuroprotectants are clinically used to reduce neuronal apoptosis in ischemic stroke. However, the current neuroprotectants have multiple limitations. Myricetin is beneficial for multiple neurodegenerative diseases, but the role of myricetin as a neuroprotective agent in ischemic stroke is still not fully understood. METHODS AND RESULTS Middle cerebral artery occlusion, Terminal deoxynucleotidyl transferase dUTP nick-end labeling staining and Western blots were used to explore the anti-apoptotic effects of myricetin in vivo. Flow cytometry, Western blots and Ca2+ staining were used to study the neuroprotective effects of myricetin in vitro. In this study, we first demonstrated that myricetin reduced neuronal apoptosis after ischemia in vivo and in vitro. And, among the factors of apoptosis after ischemic stroke, excitotoxicity, oxidative stress and inflammation-induced apoptosis can be alleviated by myricetin. Moreover, we further demonstrated that myricetin was able to improve neuronal intrinsic apoptosis by inhibiting the phosphorylation of extracellular signal-regulated kinase in the oxygen and glucose deprivation in vitro. CONCLUSIONS Summarily, our results support myricetin as a novel neuroprotectant for the prevention or treatment of ischemic stroke via MAPK-ERK signaling pathway.
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Li F, Xu Y, Wang X, Cai X, Li W, Cheng W, Li X, Yan G. Block Copolymer Nanomicelle-Encapsulated Curcumin Attenuates Cerebral Ischemia Injury and Affects Stem Cell Marker Expression by Inhibiting lncRNA GAS5. Stem Cells Int 2023; 2023:9821500. [PMID: 36845969 PMCID: PMC9957624 DOI: 10.1155/2023/9821500] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 10/11/2022] [Accepted: 01/25/2023] [Indexed: 02/19/2023] Open
Abstract
Stroke has become the most common cause of death among residents in China, among which ischemic stroke accounts for the vast majority reaching 70% to 80%. It is of great importance to actively investigate the protective mechanism of cerebral ischemia injury after IS (ischemic stroke). We constructed cerebral ischemia injury models in vivo MACO rat and in vitro (oxygen-glucose deprivation cell model) and set up different interference groups. RT-PCR (reverse transcription PCR) was conducted to detect the expression of lncRNA in neuronal cells, brain tissue, and plasma of different groups, and ELISA (enzyme-linked immunosorbent assay) and western blot were used to detect the expression of the protein in neuronal cells, brain tissue, and plasma of different groups. Cell activity was detected by the CCK-8 assay, while cell apoptosis was examined by TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) assay. In the rats' neuronal cells and brain tissue, curcumin can inhibit the expression of lncRNA GAS5 (long noncoding RNA growth arrest-specific 5). In oxygen-glucose-deprived neuronal cells in vitro, curcumin and low-expressed lncRNA GAS5 can enhance cell activity and decline cell apoptosis, but the addition of curcumin and overexpressed lncRNA GAS5 can make this phenomenon disappear. In neuronal cells, plasma, and brain tissue, curcumin and the low-expressed lncRNA GAS5 can inhibit the expression of IL-1β (interleukin 1 beta), TNF-α (tumor necrosis factor alpha), IL-6 (interleukin 6), Sox2 (SRY-box transcription factor 2), Nanog, and Oct4 (octamer-binding transcription factor 4). However, overexpressed lncRNA GAS5 and curcumin made the inhibitory effect disappear. In conclusion, this study demonstrated that curcumin could inhibit the expression of lncRNA GAS5, thereby inhibiting the expression of inflammation-related factors IL-1β, TNF-α, and IL-6, and ultimately achieve the purpose of attenuating cerebral ischemic cell damage. However, curcumin and lncRNA GAS5 may not alleviate cerebral ischemic cell damage by affecting stem cell differentiation.
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Affiliation(s)
- Fengguang Li
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
| | - Yan Xu
- Department of Pharmacy, General Hospital of Central Theater Command, Wuhan, 430010 Hubei, China
| | - Xinghua Wang
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
| | - Xuan Cai
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
| | - Wanli Li
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
| | - Wei Cheng
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
| | - Xing Li
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
| | - Gangli Yan
- Department of Neurology, Puren Hospital Affiliated to Wuhan University of Science and Technology, Wuhan, 430081 Hubei, China
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Du Y, Zhang R, Zhang G, Wu H, Zhan S, Bu N. Downregulation of ELAVL1 attenuates ferroptosis-induced neuronal impairment in rats with cerebral ischemia/reperfusion via reducing DNMT3B-dependent PINK1 methylation. Metab Brain Dis 2022; 37:2763-2775. [PMID: 36173508 DOI: 10.1007/s11011-022-01080-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 08/26/2022] [Accepted: 09/04/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Ferroptosis is a non-apoptotic form of programmed cell death and has been found in ischemic stroke. Increasing evidence revealed that ELAVL1 is associated with ferroptosis, but it remains largely unclear whether ELAVL1 is involved in ischemic stroke. Here, we aimed to investigate the biological role and mechanism of ELAVL1 in cerebral ischemia/reperfusion (I/R) injury. METHODS ELAVL1 shRNA were intravenously injected into rat brain, and then ischemic/reperfusion (I/R) model was constructed in rats to detect infarct volume, neurobehavioral deficit, and several ferroptosis factors (GSH, GPX4, SLC7A11, MDA, ROS, iron ion) in vivo. Oxygen-glucose deprivation/reperfusion (OGD/R) treated pheochromocytoma-12 (PC12) cells were used as in vitro models of I/R. RIP, biotin pull-down and ChIP assays was used to explore the relationship among ELAVL1, DNMT3B, and PINK1. RESULTS ELAVL1 was highly expressed in rat brain tissue after I/R injury. Compared with those in the I/R group, the injection of RSL3 (30 mg/kg) or ferrostatin-1 (10 mg/kg) aggravated or alleviated infarct volume, neurobehavioral impairments, and increased or decreased ferroptosis factor levels, respectively. ELAVL1 silencing ameliorated brain damage in I/R-treated rats by inhibiting ferroptosis. Moreover, ELAVL1 silencing observably facilitated cell viability, GSH content, GPX4 and SLC7A11 expression, and reduced iron ion concentration, ROS and MDA levels in OGD/R-treated PC12 cells. ELAVL1 bound with DNMT3B mRNA 3'UTR and promoted DNMT3B expression. ELAVL1 inhibited PINK1 expression through stabilizing DNMT3B mRNA and blocking DNMT3B-mediated DNA methylation of PINK1 promoter. PINK1 knockdown reversed the effects of ELAVL1 inhibition on cell viability, GSH, GPX4, SLC7A11, iron ion concentration, ROS and MDA levels in OGD/R-treated PC12 cells. CONCLUSION ELAVL1 plays a critical role in protecting against ferroptosis-induced cerebral I/R and subsequent brain damage via DNMT3B/PINK1 axis, thus providing a new potential target for ischemic stroke treatment.
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Affiliation(s)
- Yun Du
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xi Wu Road, Xin Cheng District, 710004, Xi'an, Shaanxi Province, China.
| | - Ru Zhang
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xi Wu Road, Xin Cheng District, 710004, Xi'an, Shaanxi Province, China
| | - Guilian Zhang
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xi Wu Road, Xin Cheng District, 710004, Xi'an, Shaanxi Province, China
| | - Haiqin Wu
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xi Wu Road, Xin Cheng District, 710004, Xi'an, Shaanxi Province, China
| | - Shuqin Zhan
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xi Wu Road, Xin Cheng District, 710004, Xi'an, Shaanxi Province, China
| | - Ning Bu
- Department of Neurology, The Second Affiliated Hospital of Xi'an Jiaotong University, No.157, Xi Wu Road, Xin Cheng District, 710004, Xi'an, Shaanxi Province, China
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14
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Řasová K, Martinková P, Vařejková M, Miznerová B, Pavlíková M, Hlinovská J, Hlinovský D, Philippová Š, Novotný M, Pospíšilová K, Biedková P, Vojíková R, Havlík J, O'Leary VB, Černá M, Bartoš A, Philipp T. COMIRESTROKE—A clinical study protocol for monitoring clinical effect and molecular biological readouts of COMprehensive Intensive REhabilitation program after STROKE: A four-arm parallel-group randomized double blinded controlled trial with a longitudinal design. Front Neurol 2022; 13:954712. [DOI: 10.3389/fneur.2022.954712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 10/17/2022] [Indexed: 11/05/2022] Open
Abstract
IntroductionWhile the role of physiotherapy as part of a comprehensive inpatient rehabilitation is indisputable, clear evidence concerning the effectiveness of different rehabilitation managements [interdisciplinary implementing the International Classification of Functioning, disability and health (ICF) vs. multidisciplinary model] and physiotherapy categories (neuroproprioceptive “facilitation, inhibition” vs. motor/skill acquisitions using technologies) are still lacking. In this study, four kinds of comprehensive inpatient rehabilitation with different management and content of physical therapy will be compared. Moreover, focus will be placed on the identification of novel biological molecules reflective of effective rehabilitation. Long non-coding RNAs (lncRNAs) are transcripts (>200 bps) of limited coding potential, which have recently been recognized as key factors in neuronal signaling pathways in ischemic stroke and as such, may provide a valuable readout of patient recovery and neuroprotection during therapeutic progression.Methods and analysisAdults after the first ischemic stroke in an early sub-acute phase with motor disability will be randomly assigned to one of four groups and undergo a 3 weeks comprehensive inpatient rehabilitation of different types: interdisciplinary team work using ICF model as a guide; multidisciplinary teamwork implementing neuroproprioceptive “facilitation and inhibition” physiotherapy; multidisciplinary teamwork implementing technology-based physiotherapy; and standard multidisciplinary teamwork. Primary (the Goal Attainment Scale, the Patient-Reported Outcomes Measurement Information System, and the World Health Organization Disability Assessment Schedule) and secondary (motor, cognitive, psychological, speech and swallowing functions, functional independence) outcomes will be measured. A blood sample will be obtained upon consent (20 mls; representing pre-rehabilitation molecular) before and after the inpatient program. Primary outcomes will be followed up again 3 and 12 months after the end of the program. The overarching aim of this study is to determine the effectiveness of various rehabilitation managements and physiotherapeutic categories implemented by patients post ischemic stroke via analysis of primary, secondary and long non-coding RNA readouts. This clinical trial will offer an innovative approach not previously tested and will provide new complex analysis along with public assessable molecular biological evidence of various rehabilitation methodology for the alleviation of the effects of ischemic stroke.Clinical trial registrationNCT05323916, https://clinicaltrials.gov/ct2/show/NCT05323916.
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15
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Morris-Blanco KC, Chokkalla AK, Arruri V, Jeong S, Probelsky SM, Vemuganti R. Epigenetic mechanisms and potential therapeutic targets in stroke. J Cereb Blood Flow Metab 2022; 42:2000-2016. [PMID: 35854641 PMCID: PMC9580166 DOI: 10.1177/0271678x221116192] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Accumulating evidence indicates a central role for epigenetic modifications in the progression of stroke pathology. These epigenetic mechanisms are involved in complex and dynamic processes that modulate post-stroke gene expression, cellular injury response, motor function, and cognitive ability. Despite decades of research, stroke continues to be classified as a leading cause of death and disability worldwide with limited clinical interventions. Thus, technological advances in the field of epigenetics may provide innovative targets to develop new stroke therapies. This review presents the evidence on the impact of epigenomic readers, writers, and erasers in both ischemic and hemorrhagic stroke pathophysiology. We specifically explore the role of DNA methylation, DNA hydroxymethylation, histone modifications, and epigenomic regulation by long non-coding RNAs in modulating gene expression and functional outcome after stroke. Furthermore, we highlight promising pharmacological approaches and biomarkers in relation to epigenetics for translational therapeutic applications.
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Affiliation(s)
| | - Anil K Chokkalla
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Vijay Arruri
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Soomin Jeong
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA.,Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, USA
| | - Samantha M Probelsky
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin-Madison, Madison, WI, USA.,Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, USA.,William S. Middleton Veterans Administration Hospital, Madison, WI, USA
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16
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Pan B, Guo D, Jing L, Li K, Li X, Li G, Gao X, Li ZW, Zhao W, Feng H, Cao MH. Long noncoding RNA Pvt1 promotes the proliferation and migration of Schwann cells by sponging microRNA-214 and targeting c-Jun following peripheral nerve injury. Neural Regen Res 2022; 18:1147-1153. [PMID: 36255005 PMCID: PMC9827779 DOI: 10.4103/1673-5374.353497] [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] [Indexed: 01/11/2023] Open
Abstract
Research has shown that long-chain noncoding RNAs (lncRNAs) are involved in the regulation of a variety of biological processes, including peripheral nerve regeneration, in part by acting as competing endogenous RNAs. c-Jun plays a key role in the repair of peripheral nerve injury. However, the precise underlying mechanism of c-Jun remains unclear. In this study, we performed microarray and bioinformatics analysis of mouse crush-injured sciatic nerves and found that the lncRNA Pvt1 was overexpressed in Schwann cells after peripheral nerve injury. Mechanistic studies revealed that Pvt1 increased c-Jun expression through sponging miRNA-214. We overexpressed Pvt1 in Schwann cells cultured in vitro and found that the proliferation and migration of Schwann cells were enhanced, and overexpression of miRNA-214 counteracted the effects of Pvt1 overexpression on Schwann cell proliferation and migration. We conducted in vivo analyses and injected Schwann cells overexpressing Pvt1 into injured sciatic nerves of mice. Schwann cells overexpressing Pvt1 enhanced the regeneration of injured sciatic nerves following peripheral nerve injury and the locomotor function of mice was improved. Our findings reveal the role of lncRNAs in the repair of peripheral nerve injury and highlight lncRNA Pvt1 as a novel potential treatment target for peripheral nerve injury.
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Affiliation(s)
- Bin Pan
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Di Guo
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Li Jing
- Department of Orthopedics, The Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Ke Li
- Department of Imaging, Xuzhou Central Hospital, Xuzhou, Jiangsu Province, China
| | - Xin Li
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Gen Li
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Xiao Gao
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Zhi-Wen Li
- College of Extended Education, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Wei Zhao
- Department of Orthopedics, Kuitun Hospital, Yili Kazak Autonomous Prefecture, Xinjiang Uygur Autonomous Region, China
| | - Hu Feng
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China,Correspondence to: Meng-Han Cao, ; Hu Feng, .
| | - Meng-Han Cao
- Center of Clinical Oncology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu Province, China,Correspondence to: Meng-Han Cao, ; Hu Feng, .
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17
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Jiang Z, Liu M, Huang D, Cai Y, Zhou Y. Silencing of Long Noncoding RNA GAS5 Blocks Experimental Cerebral Ischemia-Reperfusion Injury by Restraining AQP4 Expression via the miR-1192/STAT5A Axis. Mol Neurobiol 2022; 59:7450-7465. [PMID: 36195691 DOI: 10.1007/s12035-022-03045-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 09/21/2022] [Indexed: 11/29/2022]
Abstract
The long noncoding RNA (lncRNA) GAS5 has been shown to affect disease development in stroke. This study aimed to elucidate the regulatory mechanism of the lncRNA GAS5 on STAT5A in cerebral ischemia/reperfusion (I/R) injury. First, GAS5 and STAT5A levels in the blood of patients with stroke were determined. Then, a middle cerebral artery occlusion and reperfusion rat model was established in which short hairpin RNAs targeting GAS5 or STAT5A were intracranially injected, followed by the assessment of neurological function, cerebral injury and water content, and inflammation. Primary rat astrocytes were induced with oxygen-glucose deprivation/reoxygenation (OGD/R), and cell proliferation, apoptosis, and inflammation were evaluated. Moreover, the interplay between GAS5, miR-1192, and STAT5A and the binding of STAT5A to the AQP4 promoter were identified. GAS5 and STAT5A were strongly expressed in stroke patients, and inhibition of GAS5 or STAT5A in model rats improved neurological function, reduced infarction and neuronal apoptosis, and diminished cerebral water content and astrocyte activation. Furthermore, GAS5 or STAT5A downregulation restored proliferation and restrained apoptosis and inflammation in OGD/R-induced astrocytes. Mechanistically, GAS5 targeted miR-1192, which negatively regulated STAT5A. Astrocytes showed perturbed proliferation and strengthened apoptosis and inflammation when miR-1192 was inhibited despite the silencing of GAS5, while these unfavorable effects were abolished by STAT5A silencing. STAT5A binds to the AQP4 promoter and regulates its expression. Silencing of GAS5 and overexpresion of AQP4 led to lower cell viability and higher apoptosis and inflammation than GAS5 silencing alone. Overall, GAS5 silencing inhibited AQP4 through the miR-1192/STAT5A axis, thus alleviating cerebral I/R injury.
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Affiliation(s)
- Zhongzhong Jiang
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Min Liu
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Dezhi Huang
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Yang Cai
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Yu Zhou
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China.
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18
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Zhou Y, Li H, Wang L. Mechanism of miR-34a in the metabolism of extracellular matrix in fibroblasts of stress urinary incontinence via Nampt-mediated autophagy. Cell Stress Chaperones 2022; 27:369-381. [PMID: 35666377 PMCID: PMC9346036 DOI: 10.1007/s12192-022-01278-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 05/12/2022] [Accepted: 05/15/2022] [Indexed: 01/03/2023] Open
Abstract
Stress urinary incontinence (SUI) is a troublesome hygienic problem that afflicts the female population and is associated with extracellular matrix (ECM). Herein, we investigated the effects of microRNA (miR)-34a on ECM metabolism in fibroblasts of SUI via mediating nicotinamide phosphoribosyl transferase (Nampt/NAmPRTase) and hope to find novel insights in the treatment of SUI. Firstly, the anterior vaginal wall tissues of SUI patients and the female vaginal wall fibroblasts (FVWFs) of non-SUI subjects were collected and identified. Then, FVWFs were treated with 10 ng/mL of interleukin 1 beta (IL-1β) to establish SUI cell models. Subsequently, miR-34a and Nampt expressions in both types of cells were detected via RT-qPCR. It was found that miR-34a was poorly expressed, while Nampt was highly expressed in SUI. Subsequently, IL-1β-treated FVWFs were transfected with miR-34a-mimic and pcDNA3.1-Nampt, respectively. Thereafter, RT-qPCR and Western blot detected that miR-34a overexpression increased COL1A, ACAN, and TIMP-1; decreased MMP-2 and MMP-9; and elevated LC3 II/I ratio, Beclin-1 expression, and the autophagosome number in IL-1β-treated FVWFs, while Nampt upregulation reversed the above outcomes. Then, dual-luciferase reporter gene assay detected that Nampt is a downstream target of miR-34a. Together, miR-34a overexpression promoted autophagy, inhibited ECM degradation in IL-1β-treated FVWFs, and ameliorated SUI via suppressing Nampt.
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Affiliation(s)
- Ying Zhou
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China
| | - Hongjuan Li
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
| | - Lu Wang
- Department of Gynecology, Zhengzhou Central Hospital of Zhengzhou University, No. 195 Middle Tongbai Road, Zhengzhou, 450000, Henan Province, China.
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Han X, Xu J, Chen Z, Li P, Zhao L, Tao J, Shen Y, Zhu S, Yu B, Zhu J, Cao Q, Zhou S. Gas5 inhibition promotes the axon regeneration in the adult mammalian nervous system. Exp Neurol 2022; 356:114157. [PMID: 35779613 DOI: 10.1016/j.expneurol.2022.114157] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 11/04/2022]
Abstract
Neurons in the peripheral nervous system (PNS) have robust regenerative capacity after axon injury, but the regenerative capacity is generally absent in the neurons of the central nervous system (CNS) in mammals. Increasing evidence highlighted the pivotal roles of long-noncoding RNAs (lncRNAs) in development and disease, but the role of LncRNA in triggering the regenerative capacity in CNS and PNS is not well studied. Here, we reported that lncRNA Gas5 is a suppressor for axon regeneration. Bioinformatics analysis shows that Gas5 is age-dependent up-regulated during DRG neurons development and down-regulated after sciatic nerve injury. In vitro, inhibiting the expression of Gas5 promotes the neurite growth of DRG neurons both in mice and rats. Consistently, Gas5 overexpression inhibits axon growth of mice DRG neurons. In vivo, Gas5 knockout(Gas5-/-) mice display enhanced nerve regeneration ability after sciatic nerve injury. RNA pull-down analysis indicates that Gas5 can interacts with soluble Vimentin, which is essential for peripheral nerve development and regeneration. Vimentin knockdown reverses the Gas5 silence-regulated axon pro-regeneration demonstrating that the function of Gas5 depending on Vimentin. Besides, inhibition of Gas5 expression can also enhance optic nerve regeneration indicating a potential pro-regenerative ability of Gas5 silence in CNS. Our study for the first time provides direct evidence in vivo that lncRNA plays a role in regulating central axon regrowth and Gas5 might be a novel therapeutic target for axon regeneration in both PNS and CNS.
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Affiliation(s)
- Xiaoxiao Han
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Jiacheng Xu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Zixin Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Ping Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Lili Zhao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Jincheng Tao
- Medical College, Nantong University, Nantong 226001, China
| | - Yu Shen
- Medical College, Nantong University, Nantong 226001, China
| | - Shengze Zhu
- Medical College, Nantong University, Nantong 226001, China
| | - Bin Yu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Jianwei Zhu
- Department of Orthopedics, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, China
| | - Qianqian Cao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China.
| | - Songlin Zhou
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China.
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20
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Xu X, Zhang Y. Regulation of Oxidative Stress by Long Non-coding RNAs in Central Nervous System Disorders. Front Mol Neurosci 2022; 15:931704. [PMID: 35782387 PMCID: PMC9241987 DOI: 10.3389/fnmol.2022.931704] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
Central nervous system (CNS) disorders, such as ischemic stroke, Alzheimer’s disease, Parkinson’s disease, spinal cord injury, glioma, and epilepsy, involve oxidative stress and neuronal apoptosis, often leading to long-term disability or death. Emerging studies suggest that oxidative stress may induce epigenetic modifications that contribute to CNS disorders. Non-coding RNAs are epigenetic regulators involved in CNS disorders and have attracted extensive attention. Long non-coding RNAs (lncRNAs) are non-coding RNAs more than 200 nucleotides long and have no protein-coding function. However, these molecules exert regulatory functions at the transcriptional, post-transcriptional, and epigenetic levels. However, the major role of lncRNAs in the pathophysiology of CNS disorders, especially related to oxidative stress, remains unclear. Here, we review the molecular functions of lncRNAs in oxidative stress and highlight lncRNAs that exert positive or negative roles in oxidation/antioxidant systems. This review provides novel insights into the therapeutic potential of lncRNAs that mediate oxidative stress in CNS disorders.
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Affiliation(s)
- Xiaoman Xu
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yi Zhang
- Department of Gerontology and Geriatrics, Shengjing Hospital of China Medical University, Shenyang, China
- *Correspondence: Yi Zhang,
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21
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Chen X, Ren G, Li Y, Chao W, Chen S, Li X, Xue S. Level of LncRNA GAS5 and Hippocampal Volume are Associated with the Progression of Alzheimer’s Disease. Clin Interv Aging 2022; 17:745-753. [PMID: 35592641 PMCID: PMC9112342 DOI: 10.2147/cia.s363116] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/29/2022] [Indexed: 01/09/2023] Open
Abstract
Purpose We evaluated the diagnostic value of long non-coding RNA growth arrest-specific transcript 5 (GAS5) and its relationship with hippocampal volume in Alzheimer’s disease (AD). Patients and Methods One hundred and eight patients with AD and 83 healthy controls were included, and demographic data, biochemical parameters, GAS5 levels, and hippocampal volume were recorded. Chi-squared tests or independent sample t-tests were used to compare the baseline characteristics, relative expression of GAS5, and hippocampal volume. Correlations between variables were determined using Spearman’s rank correlation test. Receiver operating characteristic (ROC) curves were generated to compare the diagnostic value of GAS5 and total hippocampal volume in AD. Results The levels of GAS5 were significantly upregulated in patients with AD compared with those in controls and were negatively correlated with MMSE score. There were differences in left hippocampal volume, right hippocampal volume, and total hippocampal volume between the two groups. Total hippocampal volume was positively correlated with MMSE score and negatively correlated with GAS5 expression in patients with AD. The area under the curve (AUC) of for GAS5 expression was 0.831, the sensitivity was 61.1%, and the specificity was 95.2%. The AUC of the combined total hippocampal volume was 0.891, the sensitivity was 74.1%, and the specificity was 92.8%. Conclusion The results suggested that GAS5 may be an excellent indicator of AD progression alone or in combination with hippocampal volume.
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Affiliation(s)
- Xiaopeng Chen
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Department of Neurology, the Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, People’s Republic of China
| | - Guoqiang Ren
- Department of Radiology, the Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, People’s Republic of China
| | - Yan Li
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Department of Neurology, the Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Wa Chao
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
| | - Siyuan Chen
- Department of Neurology, the Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, People’s Republic of China
| | - Xuezhong Li
- Department of Neurology, the Affiliated People’s Hospital of Jiangsu University, Zhenjiang, Jiangsu, People’s Republic of China
| | - Shouru Xue
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People’s Republic of China
- Correspondence: Shouru Xue, Department of Neurology, the First Affiliated Hospital of Soochow University, No. 188 Shizi Road, Suzhou, Jiangsu Province, 215006, People’s Republic of China, Tel +86-18962133036, Fax +86-512-65223637, Email
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22
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Wang B, Zhao X, Xiao L, Chen Y. FoxO1 silencing facilitates neurological function recovery in intracerebral hemorrhage mice via the lncRNA GAS5/miR-378a-5p/Hspa5 axis. J Stroke Cerebrovasc Dis 2022; 31:106443. [PMID: 35487009 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106443] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/05/2022] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE Intracerebral hemorrhage (ICH) is the most devastating stroke subtype. Transcription factor Forkhead box O1 (FoxO1) is extensively implicated in cerebral injury. This study investigated the mechanism of FoxO1 in neurological function recovery in ICH mice. METHODS A murine model of ICH was established. The modified neurological severity score (mNSS), forelimb placement test, and corner turn test were adopted to evaluate the neurological function of mice. The brain water content was measured and the pathological changes of cerebral tissues were observed. The levels of IL-1β, IL-6, and TNF-α were determined. The expressions of FoxO1, lncRNA GAS5, miR-378a-5p, and heat shock 70 kDa protein 5 (Hspa5) in mouse cerebral tissues were examined. The binding relationships among FoxO1, lncRNA GAS5, miR-378a-5p, and Hspa5 were validated. Functional rescue experiments were designed to verify the role of lncRNA GAS5/miR-378a-5p/Hspa5 axis in neurological function recovery in ICH mice. RESULTS FoxO1 was highly expressed in cerebral tissues of ICH mice. FoxO1 silencing facilitated neurological function recovery in ICH mice, evidenced by decreased mNSS, improved forelimb placement rate, reduced turning defects, declined brain water content, relieved edema, intracellular vacuoles, and inflammatory cell infiltration, and reduced IL-1β, IL-6, and TNF-α levels. FoxO1 enhanced lncRNA GAS5 expression by binding to its promoter. LncRNA GAS5 facilitated Hspa5 transcription by sponging miR-378a-5p. Intervention of lncRNA GAS5/miR-378a-5p/Hspa5 axis reversed the promoting effect of FoxO1 silencing on the neurological function recovery in ICH mice. CONCLUSION FoxO1 silencing facilitated neurological function recovery in ICH mice via the lncRNA GAS5/miR-378a-5p/Hspa5 axis.
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Affiliation(s)
- Bin Wang
- Department of Neurology, The People's Hospital of Kaizhou District, Chongqing 405400, China
| | - Xi Zhao
- Department of Neurology, The People's Hospital of Kaizhou District, Chongqing 405400, China
| | - Liyan Xiao
- Department of Nephrology, The People's Hospital of Kaizhou District, Chongqing 405400, China
| | - Yong Chen
- Interventional Diagnosis and Treatment Department, The People's Hospital of Kaizhou District, No. 233 Kaizhou Avenue (Middle), Hanfeng Street, Kaizhou District, Chongqing 405400, China.
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Li S, Zhang L, Lin J, Su A, Liu X, Zhang J, Xian X, Hu Y, Li W, Sun S, Zhang M. LncRNA BIRF Promotes Brain Ischemic Tolerance Induced By Cerebral Ischemic Preconditioning Through Upregulating GLT-1 via Sponging miR-330-5p. Mol Neurobiol 2022; 59:3996-4014. [PMID: 35451738 PMCID: PMC9167204 DOI: 10.1007/s12035-022-02841-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 04/04/2022] [Indexed: 10/24/2022]
Abstract
Long noncoding RNAs (lncRNAs) play an important regulatory role in various diseases. However, the role of lncRNAs in brain ischemic tolerance (BIT) induced by cerebral ischemic preconditioning (CIPC) is still unknown. The lncRNA profile of rat cortical astrocytes pretreated with ischemic preconditioning was analyzed by high-throughput sequencing. The results of Cell-Counting Kit-8 (CCK-8) assay showed that a novel lncRNA, NONRATT009133.2, which we referred to as brain ischemia-related factor (BIRF), was highly correlated with BIT. Through bioinformatics analysis, we predicted that BIRF, miR-330-5p, and GLT-1 (also named Slc1a2) might constitute a ceRNA regulatory network in the induction of BIT. We found that BIRF was upregulated by CIPC, which promoted GLT-1 expression and BIT induction. BIRF could directly bind to miR-330-5p. Furthermore, miR-330-5p directly targeted GLT-1, and miR-330-5p inhibited both GLT-1 expression and BIT induction in vitro and in vivo. Moreover, BIRF acts as a molecular sponge to competitively bind to miR-330-5p with GLT-1 mRNA, while the miR-330-5p inhibitor reversed all the effects of BIRF siRNA on GLT-1 expression and neuronal vitality. Taken together, our results demonstrate the important roles of the BIRF/miR-330-5p/GLT-1 axis in the induction of BIT by CIPC. BIRF may be a potentially effective therapeutic strategy against stroke injury.
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Affiliation(s)
- Shichao Li
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Lingyan Zhang
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Jiajie Lin
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Department of Biochemistry and Molecular Biology, Cardiovascular Medical Science Center, Shijiazhuang, China
| | - Achou Su
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Xiyun Liu
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Jingge Zhang
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Xiaohui Xian
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Yuyan Hu
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Wenbin Li
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China
| | - Shaoguang Sun
- Key Laboratory of Medical Biotechnology of Hebei Province, Hebei Medical University, Department of Biochemistry and Molecular Biology, Cardiovascular Medical Science Center, Shijiazhuang, China.
| | - Min Zhang
- Key Laboratory of Critical Disease Mechanism and intervention of Hebei Province, Department of Pathophysiology, Hebei Medical University, Shijiazhuang, China.
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Zhang W, Chen B, Chen W. LncRNA GAS5 relates to Th17 cells and serves as a potential biomarker for sepsis inflammation, organ dysfunctions and mortality risk. J Clin Lab Anal 2022; 36:e24309. [PMID: 35325494 PMCID: PMC9102497 DOI: 10.1002/jcla.24309] [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: 01/05/2022] [Revised: 02/08/2022] [Accepted: 02/14/2022] [Indexed: 11/11/2022] Open
Abstract
BACKGROUND Long noncoding RNA GAS5 (lnc-GAS5) is able to regulate macrophage M1 polarization and Th17 cell differentiation, also engaged in sepsis-induced inflammation and organ injury. This study aimed to further evaluate its linkage with Th1 cells and Th17 cells, as well as its clinical value in sepsis management. METHODS About 101 sepsis patients were enrolled followed by peripheral blood mononuclear cell (PBMC) and serum samples collection. PBMC lnc-GAS5 was detected by RT-qPCR; Th1 cells and Th17 cells in PBMC CD4+ T cells were detected by flow cytometry; serum IFN-γ and IL-17A were detected by ELISA. Besides, PBMC lnc-GAS5 was also detected in 50 health controls (HCs). RESULTS Lnc-GAS5 was reduced in sepsis patients than in HCs (p < 0.001), which also well-distinguished sepsis patients from HCs with AUC 0.860. Lnc-GAS5 did not relate to Th1 cells (p = 0.059) or IFN-γ (p = 0.192); while negatively linked with Th17 cells (p = 0.002) and IL-17A (p = 0.019) in sepsis patients. Interestingly, lnc-GAS5 negatively correlated with SOFA score (p = 0.001), SOFA-Respiratory system score (p = 0.001), SOFA-Coagulation score (p = 0.015), and SOFA-Renal system score (p = 0.026), but not SOFA-Liver score (p = 0.080), SOFA-Cardiovascular system score (p = 0.207) or SOFA-Nervous system score (p = 0.182) in sepsis patients. Furthermore, lnc-GAS5 was negatively related to CRP (p = 0.002) and APACHE II score (p = 0.004) in sepsis patients. Finally, lnc-GAS5 was decreased in dead sepsis patients compared to survivors (p = 0.007), which also distinguished sepsis deaths from survivors with AUC 0.713. CONCLUSION Lnc-GAS5 relates to Th17 cells and serves as a potential biomarker for sepsis severity and mortality risk.
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Affiliation(s)
- Weizhen Zhang
- Intensive Care Unit, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Bingqing Chen
- Internal Medicine Department, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wei Chen
- Intensive Care Unit, Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
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LncRNA-mediated DNA methylation: an emerging mechanism in cancer and beyond. J Exp Clin Cancer Res 2022; 41:100. [PMID: 35292092 PMCID: PMC8922926 DOI: 10.1186/s13046-022-02319-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 03/08/2022] [Indexed: 02/07/2023] Open
Abstract
DNA methylation is one of the most important epigenetic mechanisms to regulate gene expression, which is highly dynamic during development and specifically maintained in somatic cells. Aberrant DNA methylation patterns are strongly associated with human diseases including cancer. How are the cell-specific DNA methylation patterns established or disturbed is a pivotal question in developmental biology and cancer epigenetics. Currently, compelling evidence has emerged that long non-coding RNA (lncRNA) mediates DNA methylation in both physiological and pathological conditions. In this review, we provide an overview of the current understanding of lncRNA-mediated DNA methylation, with emphasis on the roles of this mechanism in cancer, which to the best of our knowledge, has not been systematically summarized. In addition, we also discuss the potential clinical applications of this mechanism in RNA-targeting drug development.
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26
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Luo F, Wen Y, Zhao L, Su S, Lei W, Chen L, Chen C, Huang Q, Li Z. LncRNA ZEB1-AS1/miR-1224-5p / MAP4K4 axis regulates mitochondria-mediated HeLa cell apoptosis in persistent Chlamydia trachomatis infection. Virulence 2022; 13:444-457. [PMID: 35266440 PMCID: PMC8920228 DOI: 10.1080/21505594.2022.2044666] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Persistent infection of Chlamydia trachomatis is thought to be responsible for the debilitating sequelae of blinding trachoma and infertility. Inhibition of host cell apoptosis is a persistent C. trachomatis infection mechanism. ZEB1-AS1 is a long non-coding RNA (lncRNA), which was up-regulated in persistent C. trachomatis infection in our previous work. In this study, we investigated the role of ZEB1-AS1 in persistent infection and the potential mechanisms. The results showed that ZEB1-AS1 was involved in the regulation of apoptosis, and targeted silencing of ZEB1-AS1 could increase the apoptosis rate of persistently infected cells. Mechanically, interference ZEB1-AS1 caused an apparent down-regulation of the Bcl-2/Bax ratio and the repression of the mitochondrial membrane potential with the remarkable release of cytochrome c, resulting in the significant elevation level of caspase-3 activation. Meanwhile, the luciferase reporter assay confirmed that ZEB1-AS1 acted as a sponge for miR-1224-5p to target MAP4K4. The regulatory effect of miR-1224-5p/MAP4K4 on persistent infection-induced antiapoptosis was regulated by ZEB1-AS1. In addition, ZEB1-AS1 inhibited the apoptosis of Chlamydia-infected cells by activating the MAPK/ERK pathway. In conclusion, we found a new molecular mechanism that the ZEB1-AS1/miR-1224-5p/MAP4K4 axis contributes to apoptosis resistance in persistent C. trachomatis infection. This work may help understand the pathogenic mechanisms of persistent C. trachomatis infection and reveal a potential therapeutic strategy for its treatment.
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Affiliation(s)
- Fangzhen Luo
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China.,College of Medical Technology, Hunan Polytechnic of Environment and Biology, Hengyang, P. R. China
| | - Yating Wen
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
| | - Lanhua Zhao
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
| | - Shengmei Su
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
| | - Wenbo Lei
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
| | - Lili Chen
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
| | - Chaoqun Chen
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
| | - Qiulin Huang
- The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, P. R. China
| | - Zhongyu Li
- Institute of Pathogenic Biology, Hengyang Medical School, Hunan Provincial Key Laboratory for Special Pathogens Prevention and Control, University of South China, Hengyang, P. R. China
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27
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Fang P, Wu Y, Zhang Z, Cui C, Dong X, Hu K, Jia J, Duan X, Zhang Y, Huo H. The clinical value of long noncoding RNA GAS5 in acute ischemic stroke: Correlation with disease risk, inflammation, severity, and risk of recurrence. J Clin Lab Anal 2021; 36:e24171. [PMID: 34921461 PMCID: PMC8761411 DOI: 10.1002/jcla.24171] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/13/2021] [Accepted: 10/20/2021] [Indexed: 12/21/2022] Open
Abstract
Background Long noncoding RNA growth arrest‐specific 5 (lnc‐GAS5) is involved in the pathophysiology of acute ischemic stroke (AIS) by regulating vascular stenosis, inflammation, and neurocyte apoptosis. This study aimed to explore the clinical value of lnc‐GAS5 in patients with AIS. Methods Plasma samples were collected from 120 patients with AIS at admission and 60 controls after enrollment, and lnc‐GAS5 expression in the plasma of all participants was assessed by reverse transcription quantitative polymerase chain reaction. In patients with AIS, disease severity was evaluated using National Institute of Health Stroke Scale (NIHSS) score, and plasma inflammatory cytokine levels were measured by enzyme‐linked immunosorbent assay. Recurrence‐free survival (RFS) was calculated during a 36‐month follow‐up period. Results Lnc‐GAS5 expression levels were higher in patients with AIS than in the controls (p < 0.001), and it had the potential to discriminate the controls from patients with AIS (area under the curve: 0.893, 95% confidence interval: 0.849–0.938). In patients with AIS, elevated lnc‐GAS5 levels were positively correlated with NIHSS score (r = 0.397, p < 0.001), diabetes mellitus (p = 0.046), and higher levels of tumor necrosis factor alpha (TNF‐α; r = 0.374, p < 0.001), interleukin‐6 (IL‐6; r = 0.223, p < 0.001), and interleukin‐17A (IL‐17A; r = 0.222, p = 0.015). The expression levels of lnc‐GAS5 were also negatively correlated with the levels of interleukin‐10 (IL‐10; r = −0.350, p < 0.001) and RFS (p = 0.036). Conclusion Lnc‐GAS5 is correlated with higher susceptibility to AIS, inflammation, and severity, and can predict an increased risk of AIS recurrence, indicating that monitoring of lnc‐GAS5 might improve the management of AIS.
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Affiliation(s)
- Pingping Fang
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Yiping Wu
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Zhongbo Zhang
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Cui Cui
- Department of Ophthalmology, Handan Central Hospital, Handan, China
| | - Xiaoxue Dong
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Ke Hu
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Jundong Jia
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Xinfei Duan
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Ying Zhang
- Department of Neurology, Handan Central Hospital, Handan, China
| | - Haoran Huo
- Department of General Surgery, Handan Central Hospital, Handan, China
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Li Y, Cai M, Feng Y, Yung B, Wang Y, Gao N, Xu X, Zhang H, Huang H, Yao D. Effect of lncRNA H19 on nerve degeneration and regeneration after sciatic nerve injury in rats. Dev Neurobiol 2021; 82:98-111. [PMID: 34818452 DOI: 10.1002/dneu.22861] [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: 02/15/2021] [Revised: 09/24/2021] [Accepted: 11/04/2021] [Indexed: 11/09/2022]
Abstract
Hundreds of millions of people worldwide suffer from peripheral nerve damage resulting from car accidents, falls, industrial accidents, residential accidents, and wars. The purpose of our study was to further investigate the effects of Wallerian degeneration (WD) after rat sciatic nerve injury and to screen for critical long noncoding RNAs (lncRNAs) in WD. We found H19 to be essential for nerve degeneration and regeneration and to be highly expressed in the sciatic nerves of rats with WD. lncRNA H19 potentially impaired the recovery of sciatic nerve function in rats. H19 was mainly localized in the cytoplasm of Schwann cells (SCs) and promoted their migration. H19 promoted the apoptosis of dorsal root ganglion (DRG) neurons and slowed the growth of DRG axons. The lncRNA H19 may play a role in WD through the Wnt/β-catenin signaling pathway and is coexpressed with a variety of crucial mRNAs during WD. These data provide further insight into the molecular mechanisms of WD.
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Affiliation(s)
- Yuting Li
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
| | - Min Cai
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China.,Diagnostic laboratory, Medical School of Nantong University, Nantong, P. R. China
| | - Yumei Feng
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
| | - Bryant Yung
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
| | - Yi Wang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
| | - Nannan Gao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
| | - Xi Xu
- Rehabilitation Medical Center, Affiliated Hospital of Nantong University, Nantong, P. R. China
| | - Huanhuan Zhang
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
| | - Huiwei Huang
- Diagnostic laboratory, Medical School of Nantong University, Nantong, P. R. China
| | - Dengbing Yao
- School of Life Sciences, Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong, P. R. China
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Ghafouri-Fard S, Shirvani-Farsani Z, Hussen BM, Taheri M, Arefian N. Emerging Impact of Non-coding RNAs in the Pathology of Stroke. Front Aging Neurosci 2021; 13:780489. [PMID: 34867304 PMCID: PMC8640345 DOI: 10.3389/fnagi.2021.780489] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 10/28/2021] [Indexed: 12/30/2022] Open
Abstract
Ischemic stroke (IS) is an acute cerebral vascular event with high mortality and morbidity. Though the precise pathophysiologic routes leading to this condition are not entirely clarified, growing evidence from animal and human experiments has exhibited the impact of non-coding RNAs in the pathogenesis of IS. Various lncRNAs namely MALAT1, linc-SLC22A2, linc-OBP2B-1, linc_luo_1172, linc-DHFRL1-4, SNHG15, linc-FAM98A-3, H19, MEG3, ANRIL, MIAT, and GAS5 are possibly involved in the pathogenesis of IS. Meanwhile, lots of miRNAs contribute in this process. Differential expression of lncRNAs and miRNAs in the sera of IS patients versus unaffected individuals has endowed these transcripts the aptitude to distinguish at risk patients. Despite conduction of comprehensive assays for evaluation of the influence of lncRNAs/miRNAs in the pathogenesis of IS, therapeutic impacts of these transcripts in IS have not been clarified. In the present paper, we review the impact of lncRNAs/miRNAs in the pathobiology of IS through assessment of evidence provided by human and animal studies.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Zeinab Shirvani-Farsani
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Noormohammad Arefian
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University Hospital, Tehra, Iran
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30
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Ma J, Sun W, Chen S, Wang Z, Zheng J, Shi X, Li M, Li D, Gu Q. The long noncoding RNA GAS5 potentiates neuronal injury in Parkinson's disease by binding to microRNA-150 to regulate Fosl1 expression. Exp Neurol 2021; 347:113904. [PMID: 34755654 DOI: 10.1016/j.expneurol.2021.113904] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/19/2021] [Accepted: 10/20/2021] [Indexed: 11/26/2022]
Abstract
Long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) have been the focus of recent studies of neurodegenerative disorders, including Parkinson's disease (PD). However, the specific mechanism of action of growth arrest-specific 5 (GAS5) in PD has not yet been characterized. First, the GSE8030 and GSE16658 datasets were analyzed to obtain differentially expressed genes (DEGs), followed by the development of a PD mouse model. The effects of shRNA targeting fos-like antigen-1 (shFosl1) and microRNA (miR)-150 agomiR on PD mouse behavior and neuronal injury were evaluated in vitro and in vivo. After the determination of target lncRNAs using bioinformatics tools, cell models were developed in SH-SY5Y and N2a cells using MPP+ to verify the effects of GAS5, miR-150 and Fosl1 on cell viability. Knockdown of Fosl1 and GAS5 or overexpression of miR-150 alleviated neuronal injury in mice after MPTP treatment and significantly increased the activity of SH-SY5Y and N2a cells after MPP treatment. GAS5 bound to miR-150, while miR-150 targeted Fosl1. Fosl1 activated the PTEN/AKT/mTOR pathway, thus promoting apoptosis and inhibiting neuronal activity in the PD model. Overall, our findings illuminated that GAS5 accelerated PD progression by targeting the miR-150/Fosl1 axis.
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Affiliation(s)
- Jianjun Ma
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Henan University People's Hospital, Zhengzhou 450003, Henan, PR China.
| | - Wenhua Sun
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Siyuan Chen
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Henan University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Zhidong Wang
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Jinhua Zheng
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Henan University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Xiaoxue Shi
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Mingjian Li
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Henan University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Dongsheng Li
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Henan University People's Hospital, Zhengzhou 450003, Henan, PR China
| | - Qi Gu
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Zhengzhou University People's Hospital, Zhengzhou 450003, Henan, PR China; Department of Neurology, Henan University People's Hospital, Zhengzhou 450003, Henan, PR China
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31
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Xin R, Qu D, Su S, Zhao B, Chen D. Downregulation of miR-23b by transcription factor c-Myc alleviates ischemic brain injury by upregulating Nrf2. Int J Biol Sci 2021; 17:3659-3671. [PMID: 34512173 PMCID: PMC8416714 DOI: 10.7150/ijbs.61399] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/24/2021] [Indexed: 12/12/2022] Open
Abstract
Ischemic brain injury (IBI) is a common acute cerebral vessel disease that occurs secondary to blockage in arteries, mainly characterized by insufficient blood supply to the brain. The transcription factor c-Myc in IBI continues to be implicated in numerous studies. This study was conducted with emphasis placed on the underlying mechanism of c-Myc in IBI. Clinical samples were collected from IBI patients. Middle cerebral artery occlusion (MCAO) was induced in mice by inserting a suture from the external carotid artery to the anterior cerebral artery through the internal carotid artery to mechanically block the blood supply at the origin of the middle cerebral artery, and cortical neurons from mice were exposed to oxygen glucose deprivation (OGD) conditions for IBI model in vitro construction. RT-qPCR was performed to determine microRNA-23b (miR-23b) expression. TUNEL staining and Western blot analysis was conducted to detect apoptosis. The regulatory relationship was analyzed by dual-luciferase reporter gene assay. After loss- and gain-of-function assays, triphenyltetrazolium chloride staining was carried out to detect the area of cerebral infarction, after which the spatial memory in mice was evaluated with Morris water maze test. As per our findings, miR-23b was upregulated in the serum of IBI patients and OGD-treated murine primary neurons. Silencing of miR-23b resulted in reduced OGD-induced neuronal apoptosis. miR-23b inversely targeted nuclear factor erythroid 2-related factor 2 (Nrf2) and c-Myc negatively regulated miR-23b expression. Overexpression of c-Myc and inhibition of miR-23b led to reduced neurological scores of infarction area, neuronal apoptosis, shortened platform arrival time and significantly increased the time spent on the platform quadrant and the times of crossing the platform in vivo. Collectively, downregulated miR-23b by c-Myc might alleviate IBI by upregulating Nrf2.
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Affiliation(s)
- Rui Xin
- Jilin University, Changchun 130000, P. R. China
- Department of Radiology, the Second Hospital of Jilin University, Changchun 130000, P. R. China
| | - Danhua Qu
- Jilin University, Changchun 130000, P. R. China
- Department of Respiratory and Critical Diseases, the Second Hospital of Jilin University, Changchun 130000, P. R. China
| | - Shuang Su
- Sinopec Research Institute of Safety Engineering, Qingdao 266000, P. R. China
| | - Bin Zhao
- Jilin University, Changchun 130000, P. R. China
- Department of Neurosurgery, the Second Hospital of Jilin University, Changchun 130000, P. R. China
| | - Dawei Chen
- Jilin University, Changchun 130000, P. R. China
- Department of Radiation Protection, School of Public Health, Jilin University, Changchun 130000, P. R. China
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32
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Wu S, Du L. Protein Aggregation in the Pathogenesis of Ischemic Stroke. Cell Mol Neurobiol 2021; 41:1183-1194. [PMID: 32529541 DOI: 10.1007/s10571-020-00899-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/05/2020] [Indexed: 01/31/2023]
Abstract
Despite the distinction between ischemic stroke and neurodegenerative disorders, they share numerous pathophysiologies particularly those mediated by inflammation and oxidative stress. Although protein aggregation is considered to be a hallmark of neurodegenerative diseases, the formation of protein aggregates can be also induced within a short time after cerebral ischemia, aggravating cerebral ischemic injury. Protein aggregation uncovers a previously unappreciated molecular overlap between neurodegenerative diseases and ischemic stroke. Unfortunately, compared with neurodegenerative disease, mechanism of protein aggregation after cerebral ischemia and how this can be averted remain unclear. This review highlights current understanding on protein aggregation and its intrinsic role in ischemic stroke.
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Affiliation(s)
- Shusheng Wu
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China.
| | - Longfei Du
- Department of Laboratory Medicine, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, China
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Cao Y, Jiang C, Lin H, Chen Z. Silencing of Long Noncoding RNA Growth Arrest-Specific 5 Alleviates Neuronal Cell Apoptosis and Inflammatory Responses Through Sponging microRNA-93 to Repress PTEN Expression in Spinal Cord Injury. Front Cell Neurosci 2021; 15:646788. [PMID: 34054430 PMCID: PMC8163226 DOI: 10.3389/fncel.2021.646788] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Accepted: 04/20/2021] [Indexed: 02/01/2023] Open
Abstract
A secondary injury induced by a spinal cord injury (SCI) remains the main cause of devastating neural dysfunction; therefore, it has been the subject of focused research for many years. Long noncoding RNA (lncRNA) has been found to participate in the SCI process, and this finding presents a high potential for diagnosis and treatment; however, the role of lncRNA in a secondary injury induced by SCI remains unclear. The aim of this study was to investigate the regulatory effect of lncRNA growth arrest–specific transcript 5 (GAS5) in secondary injury during SCI. The SCI mice model and hypoxic cellular model were established to research the roles of lncRNA GAS5 during SCI. Reverse transcription quantitative polymerase chain reaction (qRT-PCR) was conducted to determine the expression levels of microR-93 (miR-93) and lncRNA GAS5. Western blot analysis of the apoptosis regulator protein and terminal deoxynucleotidyl transferase dUTP nick end labeling assay was conducted to evaluate neuron cell apoptosis. Basso, Beattie, and Bresnahan (BBB) scores were calculated to assess neurological function. Flow cytometry was used to determine neuron cell apoptosis. The associations among GAS5, miR-93, and the phosphatase and tensin homolog (PTEN) were disclosed using RNA immunoprecipitation (RIP) assay, RNA pulldown assay, and dual-luciferase reporter assay. QRT-PCR demonstrated that GAS5 was significantly upregulated in both the SCI mice and hypoxic cellular models. GAS5 knockdown suppressed neuron cell apoptosis and inflammatory response in the SCI mice model. Further studies have indicated that GAS5 functions as a competing endogenous RNA (ceRNA) by sponging miR-93 in neuronal cells. In addition, PTEN was a target of miR-93, and GAS5 knockdown exhibited its anti-apoptotic and anti-inflammatory effects through the miR-93/PTEN axis. These findings suggest that the GAS5/miR-93/PTEN axis may be a promising therapeutic target for SCI.
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Affiliation(s)
- Yuanwu Cao
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chang Jiang
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Haodong Lin
- Department of Orthopedic Surgery, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zixian Chen
- Department of Orthopedics, Zhongshan Hospital, Fudan University, Shanghai, China
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Genetic Variants of lncRNA GAS5 Contribute to Susceptibility of Ischemic Stroke among Southern Chinese Population. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6634253. [PMID: 33937403 PMCID: PMC8055407 DOI: 10.1155/2021/6634253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/23/2021] [Accepted: 04/05/2021] [Indexed: 12/22/2022]
Abstract
Emerging evidence suggests that the long noncoding RNA (lncRNA) growth arrest special 5 (GAS5) plays crucial roles in the pathogenesis of ischemic stroke (IS). The current research is aimed at assessing the correlation between two functional GAS5 variants (rs145204276 and rs55829688) and susceptibility to IS in a Han Chinese population. This study genotyped the two GAS5 variants in 1086 IS patients as well as 1045 age-matched healthy controls by using an improved multitemperature ligase detection reaction (iMLDR-TM) genotyping technology. We observed a considerable change in the frequencies of the rs145204276 allele and genotype among the IS patients and healthy control group. The del-T haplotype was substantially more prevalent in the IS cases compared to the control individuals. When study participants were stratified according to environmental factors, we found that the rs145204276 del allele was correlated with a higher risk of IS in male, smokers, hypertensive, and those ≥65 years old. Additional stratification conforming to IS subtypes exhibited that individuals carrying the rs145204276 del allele conferred a higher risk of expanding a larger artery atherosclerosis stroke subset. Moreover, there was a significant association between the rs145204276 del allele and elevated expression of GAS5 in IS patients. In contrast, the frequency of the allele related to rs55829688 was not statistically correlated with IS in all analysis. Our study supports a model wherein the rs145204276 variant in the GAS5 lncRNA is associated with IS risk, thus representing a potentially viable biomarker for IS prevention and treatment.
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Wolska M, Jarosz-Popek J, Junger E, Wicik Z, Porshoor T, Sharif L, Czajka P, Postula M, Mirowska-Guzel D, Czlonkowska A, Eyileten C. Long Non-coding RNAs as Promising Therapeutic Approach in Ischemic Stroke: a Comprehensive Review. Mol Neurobiol 2021; 58:1664-1682. [PMID: 33236327 PMCID: PMC7932985 DOI: 10.1007/s12035-020-02206-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 11/09/2020] [Indexed: 02/06/2023]
Abstract
In recent years, ischemic stroke (IS) has been one of the major causes of disability and mortality worldwide. The general mechanism of IS is based on reduced blood supply to neuronal tissue, resulting in neuronal cell damage by various pathological reactions. One of the main techniques for acute IS treatment entails advanced surgical approaches for restoration of cerebral blood supply but this is often associated with secondary brain injury, also known as ischemic reperfusion injury (I/R injury). Many researches have come to emphasize the significant role of long non-coding RNAs (lncRNAs) in IS, especially in I/R injury and their potential as therapeutic approaches. LncRNAs are non-protein transcripts that are able to regulate cellular processes and gene expression. Further, lncRNAs have been shown to be involved in neuronal signaling pathways. Several lncRNAs are recognized as key factors in the physiological and pathological processes of IS. In this review, we discuss the role of lncRNAs in neuronal injury mechanisms and their association with brain neuroprotection. Moreover, we identify the lncRNAs that show the greatest potential as novel therapeutic approaches in IS, which therefore merit further investigation in preclinical research. Graphical Abstract.
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Affiliation(s)
- Marta Wolska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Joanna Jarosz-Popek
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Eva Junger
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Zofia Wicik
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
- Centro de Matemática, Computação e Cognição, Universidade Federal do ABC, Sao Paulo, Brazil
| | - Tahmina Porshoor
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Lucia Sharif
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Pamela Czajka
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Marek Postula
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Dagmara Mirowska-Guzel
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
| | - Anna Czlonkowska
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
- 2nd Department of Neurology, Institute of Psychiatry and Neurology, 02-957 Warsaw, Poland
| | - Ceren Eyileten
- Department of Experimental and Clinical Pharmacology, Medical University of Warsaw, Center for Preclinical Research and Technology CEPT, Banacha 1B str., Warsaw, 02-097 Warsaw, Poland
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Wu Y, Rong W, Jiang Q, Wang R, Huang H. Downregulation of lncRNA GAS5 Alleviates Hippocampal Neuronal Damage in Mice with Depression-Like Behaviors Via Modulation of MicroRNA-26a/EGR1 Axis. J Stroke Cerebrovasc Dis 2021; 30:105550. [PMID: 33341564 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105550] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 12/07/2020] [Accepted: 12/09/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Accumulating evidences have demonstrated the roles of several long non-coding RNAs (lncRNAs) in depression. We aim to examine the capabilities of lncRNA growth arrest-specific transcript 5 (GAS5) on mice with depression-like behaviors and the mechanism of action. METHODS Fifty-six healthy mice were selected for model establishment. Morris water maze test and trapeze test were performed for evaluating learning and memory ability. The binding relationship between lncRNA GAS5 and microRNA-26a (miR-26a) and the target relationship between miR-26a and EGR1 were verified by dual-luciferase reporter gene assay. The apoptosis of neurons in the hippocampal CA1 region of mice was detected by TUNEL staining. The expression of inflammatory factors, lncRNA GAS5, miR-26a, early growth response gene 1 (EGR1), phosphoinositide 3-kinase (PI3K)/protein kinase B (AKT) pathway- and apoptosis-related factors in hippocampal tissues was tested by RT-qPCR and western blot analysis. RESULTS miR-26a expression was down-regulated while EGR1 and lncRNA GAS5 expression were up-regulated in hippocampal tissues of mice with depression-like behaviors. LncRNA GAS5 specifically bound to miR-26a and miR-26a targeted EGR1. Silencing of lncRNA GAS5 curtailed the release of inflammatory factors and the apoptosis of hippocampal neuron of mice with depression-like behaviors. EGR1 suppressed PI3K/AKT pathway activation to promote the release of inflammatory factors and the apoptosis of hippocampal neurons in mice with depression-like behaviors. CONCLUSION Our study provides evidence that silencing of lncRNA GAS5 could activate PI3K/AKT pathway to protect hippocampal neurons against damage in mice with depression-like behaviors by regulating the miR-26a/EGR1 axis.
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Affiliation(s)
- Yigao Wu
- Department of Medical Psychology, The First Affiliated Hospital of Wannan Medical College, No. 2, Zheshan West Road, Wuhu 241001, Anhui, PR China.
| | - Wei Rong
- Department of Clinical Medical Psychology, The Second People's Hospital of Wuhu, Wuhu 241001, Anhui, PR China.
| | - Qin Jiang
- Department of Medical Psychology, The First Affiliated Hospital of Wannan Medical College, No. 2, Zheshan West Road, Wuhu 241001, Anhui, PR China.
| | - Ruiquan Wang
- Department of Medical Psychology, The First Affiliated Hospital of Wannan Medical College, No. 2, Zheshan West Road, Wuhu 241001, Anhui, PR China.
| | - Huilan Huang
- Department of Medical Psychology, The First Affiliated Hospital of Wannan Medical College, No. 2, Zheshan West Road, Wuhu 241001, Anhui, PR China.
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Wang D, Xu X, Pan J, Zhao S, Li Y, Wang Z, Yang J, Zhang X, Wang Y, Liu M. GAS5 knockdown alleviates spinal cord injury by reducing VAV1 expression via RNA binding protein CELF2. Sci Rep 2021; 11:3628. [PMID: 33574559 PMCID: PMC7878805 DOI: 10.1038/s41598-021-83145-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNA growth arrest specific transcript 5 (GAS5) has been found to be implicated in the pathogenesis of central nervous diseases and to be a contributor to hypoxic brain injury. However, the roles and molecular mechanisms of GAS5 in spinal cord injury (SCI) have not thoroughly investigated. Here, we reported that GAS5 knockdown improved rat locomotor function and alleviated pathological damage of spinal cord tissues by reducing oxidative stress, caspase-3 activity and vav guanine nucleotide exchange factor 1 (VAV1) expression in SCI rat models. GAS5 knockdown inhibited the increase of malondialdehyde (MDA) level and cell apoptotic rate induced by oxygen-glucose deprivation (OGD) and weakened the inhibitory effects of OGD on superoxide dismutase (SOD) and glutathione peroxidase (GSH-Px) activities and cell viability in RN-Sc cells, suggesting that GAS5 loss mitigated OGD-triggered oxidative stress and cell injury in RN-Sc cells. Molecular mechanism explorations revealed that GAS5 recruited CUGBP, Elav-like family member 2 (CELF2) to the coding region of VAV1 mRNA, resulting in the increase of VAV1 mRNA stability and expression levels. VAV1 knockdown weakened OGD-induced oxidative stress and cell injury in RN-Sc cells. VAV1 loss alleviated GAS5-induced oxidative stress and cell injury in OGD-treated RN-Sc cells. As a conclusion, our findings suggested that GAS5 aggravated SCI by increasing VAV1 expression via binding with CELF2, deepening our understanding on function and molecular basis of GAS5 in SCI.
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Affiliation(s)
- Dan Wang
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Xiaoxiao Xu
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Junwei Pan
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Shixin Zhao
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Yu Li
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Zhen Wang
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Jiahao Yang
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Xi Zhang
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Yisheng Wang
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China
| | - Ming Liu
- Department of Orthopedic, The First Affiliated Hospital of Zhengzhou University, No. 1, Jianshe East road, Erqi District, Zhengzhou, 450052, China.
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Wu R, Yun Q, Zhang J, Bao J. RETRACTED: Long non-coding RNA GAS5 retards neural functional recovery in cerebral ischemic stroke through modulation of the microRNA-455-5p/PTEN axis. Brain Res Bull 2021; 167:80-88. [PMID: 33309710 DOI: 10.1016/j.brainresbull.2020.12.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/04/2020] [Accepted: 12/04/2020] [Indexed: 02/07/2023]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy). This article has been retracted at the request of the Editor-in-Chief. Concern was raised about the reliability of the Western blot results in Figs. 1C and 4B+J, which appear to have the same eyebrow shaped phenotype as many other publications tabulated here (https://docs.google.com/spreadsheets/d/149EjFXVxpwkBXYJOnOHb6RhAqT4a2llhj9LM60MBffM/edit#gid=0). The journal requested the corresponding author comment on these concerns and provide the raw data. However, the authors were not responsive to the request for comment. Since original data could not be provided, the overall validity of the results could not be confirmed. Therefore, the Editor-in-Chief decided to retract the article.
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Affiliation(s)
- Rile Wu
- Department of Neurosurgery, Inner Mongolia People's Hospital, Hohhot, 010017, Inner Mongolia Autonomous Region, China.
| | - Qiang Yun
- Department of Neurosurgery, Inner Mongolia People's Hospital, Hohhot, 010017, Inner Mongolia Autonomous Region, China
| | - Jianping Zhang
- Department of Neurosurgery, Inner Mongolia People's Hospital, Hohhot, 010017, Inner Mongolia Autonomous Region, China
| | - Jingang Bao
- Department of Neurosurgery, Inner Mongolia People's Hospital, Hohhot, 010017, Inner Mongolia Autonomous Region, China
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Zhang L, Cai Q, Lin S, Chen B, Jia B, Ye R, Weygant N, Chu J, Peng J. Qingda granule exerts neuroprotective effects against ischemia/reperfusion-induced cerebral injury via lncRNA GAS5/miR-137 signaling pathway. Int J Med Sci 2021; 18:1687-1698. [PMID: 33746585 PMCID: PMC7976574 DOI: 10.7150/ijms.53603] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Accepted: 01/07/2021] [Indexed: 12/12/2022] Open
Abstract
Background: Ischemic stroke is the second leading cause of death and disability worldwide, which needs to develop new pharmaceuticals for its prevention and treatment. Qingda granule (QDG), a traditional Chinese medicine formulation, could improve angiotensin II-induced brain injury and decrease systemic inflammation. In this study, we aimed to evaluate the neuroprotective effect of QDG against ischemia/reperfusion-induced cerebral injury and illustrate the potential mechanisms. Methods: The middle cerebral artery occlusion/reperfusion (MCAO/R) surgery in vivo and oxygen-glucose deprivation/reoxygenation (OGD/R) in vitro models were established. Ischemic infarct volume was quantified using magnetic resonance imaging (MRI). Neurobehavioral deficits were assessed using a five-point scale. Cerebral histopathology was determined by hematoxylin-eosin (HE) staining. Neuronal apoptosis was evaluated by TUNEL and immunostaining with NeuN antibodies. The protective effect of QDG on OGD/R-injured HT22 cells was determined by MTT assay and Hoechst 33258 staining. The expression of lncRNA GAS5, miR-137 and apoptosis-related proteins were investigated in MCAO/R-injured rats and in OGD/R-injured HT22 cells using RT-qPCR and western blot analysis. Results: QDG significantly reduced the ischemic infarct volume, which was accompanied with improvements in neurobehavioral deficits. Additionally, QDG significantly ameliorated cerebral histopathological changes and reduced neuron loss in MCAO/R-injured rats. Moreover, QDG improved growth and inhibited apoptosis of HT22 cells injured by OGD/R in vitro. Finally, QDG significantly decreased the expression of lncRNA GAS5, Bax and cleaved caspase3, whereas it increased miR-137 and Bcl-2 expression in MCAO/R-injured rats and in OGD/R-injured HT22 cells. Conclusion: QDG plays a neuroprotective role in ischemic stroke via regulation of the lncRNA GAS5/miR-137 signaling pathway.
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Affiliation(s)
- Ling Zhang
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
| | - Qiaoyan Cai
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Fujian Key Laboratory of Rehabilitation Technology, Fujian University of Traditional Chinese Medicine, Qiuyang Road, Minhou Shangjie, Fuzhou, China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
| | - Shan Lin
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
| | - Bin Chen
- People's Hospital of Fujian University of Traditional Chinese Medicine, No.602, 817 Middle Road, Fuzhou 350004, China
| | - Beibei Jia
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,The Higher Educational Key Laboratory for Integrative Medicine of Fujian Province, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
| | - Renzhi Ye
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,The Higher Educational Key Laboratory for Integrative Medicine of Fujian Province, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
| | - Nathaniel Weygant
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China
| | - Jianfeng Chu
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
| | - Jun Peng
- Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou 350122, China.,Chen Keji Academic Thought Inheritance Studio, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Minhou Shangjie, Fuzhou, Fujian 350122, China
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Zhang Z, Li X, Chen F, Li Z, Wang D, Ren X, Ma H. Downregulation of LncRNA Gas5 inhibits apoptosis and inflammation after spinal cord ischemia-reperfusion in rats. Brain Res Bull 2020; 168:110-119. [PMID: 33316370 DOI: 10.1016/j.brainresbull.2020.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 11/22/2020] [Accepted: 12/08/2020] [Indexed: 12/12/2022]
Abstract
Spinal cord ischemia-reperfusion injury(SCII)affects nerve function through many mechanisms, which are complex and not fully understood. Recently, accumulating evidence has indicated that long noncoding RNAs (lncRNAs) play an increasingly important role in SCII. We investigated the role of lncRNA growth arrest-specific 5(Gas5) in a rat SCII model, and its effects on apoptosis and inflammation possibly by modulating MMP-7, cleaved caspase-3 and IL-1β. LncRNA Gas5 and MMP-7 were knocked down by intrathecal siRNA injection. Neurological assessment and TUNEL assay were performed. The RNA and protein expression levels of lncRNA Gas5, MMP-7, cleaved caspase-3 and IL-1β were determined by PCR and Western blotting, respectively. MMP-7 localization was visualized by double-immunofluorescence. SCII induced functional impairment in the hind limb, and the expression of lncRNA Gas5 was highest at 24 h after SCII. LncRNA Gas5 downregulation inhibited the RNA and protein expression of MMP-7, as well as the protein expression of cleaved caspase-3 and IL-1β. LncRNA Gas5 downregulation reduced the number of TUNEL-positive and MMP-7-positive double-labeled cells. Therefore, lncRNA Gas5 downregulation alleviated hind limb functional impairment and improved neuronal apoptosis after SCII. MMP-7 downregulation also inhibited apoptosis and inflammation and alleviated damage. Pretreatment with intrathecal injection of si-lncRNA Gas5 and si-MMP-7 reduced the expression levels of cleaved caspase-3 and IL-1β, protecting nerve function after SCII. These results show that lncRNA Gas5 plays an important role in SCII, perhaps by inhibiting MMP-7, cleaved caspase-3 and IL-1β. LncRNA Gas5 downregulation could be a promising therapeutic approach in the SCII treatment.
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Affiliation(s)
- Zaili Zhang
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Xiaoqian Li
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Fengshou Chen
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Zhe Li
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Dan Wang
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Xiaoyan Ren
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
| | - Hong Ma
- Department of Anesthesiology, the First Hospital of China Medical University, Shenyang, Liaoning Province, China.
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Guo T, Liu Y, Ren X, Wang W, Liu H. Promoting Role of Long Non-Coding RNA Small Nucleolar RNA Host Gene 15 (SNHG15) in Neuronal Injury Following Ischemic Stroke via the MicroRNA-18a/CXC Chemokine Ligand 13 (CXCL13)/ERK/MEK Axis. Med Sci Monit 2020; 26:e923610. [PMID: 32862188 PMCID: PMC7480088 DOI: 10.12659/msm.923610] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Background Long-non-coding RNA (lncRNA) SNHG15 has been reported to be an aberrantly expressed lncRNA in patients with ischemic stroke, but its role in neuronal injury following ischemic stroke remains unclear. We hypothesized that this lncRNA is associated with the pathogenesis of ischemic stroke. Material/Methods A mouse model of ischemic stroke was established by middle cerebral artery occlusion (MCAO). A neurogenic mouse cell line Neuro-2a (N2a) was subjected to oxygen-glucose deprivation (OGD) for in vitro experiments. Expression of SNHG15, microRNA-18a (miR-18a), and CXCL13 in mouse brain and in OGD-treated N2a cells was determined. Altered expression of SNHG15 and miR-18a was introduced to detect their roles in N2a cell viability and apoptosis. Targeting relationships between miR-18a and SNHG15 or CXCL13 were validated by luciferase assays. Cells were treated with the ERK/MEK antagonist U0126 to assess the role of the ERK/MEK signaling pathway in N2a cell growth. Results SNHG15 and CXCL13 were overexpressed and miR-18a was underexpressed in MCAO-induced mice and OGD-treated N2a cells. Silencing of SNHG15 or overexpression of miR-18a promoted cell viability, while decreased cell apoptosis induced by OGD; however, subsequent disruption of the ERK/MEK signaling pathway reversed these effects. SNHG15 was found to bind to miR-18a, which could further target CXCL13. Conclusions Silencing of SNHG15 led to CXCL13 upregulation through sequestering miR-18a and the following ERK/MEK activation, thus enhancing viability while reducing apoptosis of N2a cells. SNHG15 may serve as a novel target for ischemic stroke treatment.
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Affiliation(s)
- Tiezhu Guo
- Department of Neurosurgery, Heji Hospital Affiliated with Changzhi Medical College, Changzhi, Shanxi, China (mainland)
| | - Yueting Liu
- Department of Neurosurgery, The First Hospital Affiliated with Shanxi Medical University, Taiyuan, Shanxi, China (mainland)
| | - Xinliang Ren
- Department of Neurosurgery, Heji Hospital Affiliated with Changzhi Medical College, Changzhi, Shanxi, China (mainland)
| | - Wei Wang
- Department of Neurosurgery, Heji Hospital Affiliated with Changzhi Medical College, Changzhi, Shanxi, China (mainland)
| | - Hanrui Liu
- Department of Neurology, Heji Hospital Affiliated with Changzhi Medical College, Changzhi, Shanxi, China (mainland)
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Liu Y, Wu X, Nie S, Zhou S, Xiao S, Gao X, Lin Z, Sun J, Huang Y. Methylation of Phospholipase A2 Group VII Gene Is Associated with Brain Arteriovenous Malformations in Han Chinese Populations. J Mol Neurosci 2020; 70:1056-1063. [DOI: 10.1007/s12031-020-01508-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 02/19/2020] [Indexed: 11/29/2022]
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Salemi M, Marchese G, Cordella A, Cannarella R, Barone C, Salluzzo MG, Calogero AE, Romano C. Long non-coding RNA GAS5 expression in patients with Down syndrome. Int J Med Sci 2020; 17:1315-1319. [PMID: 32624686 PMCID: PMC7330673 DOI: 10.7150/ijms.45386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/03/2020] [Indexed: 12/04/2022] Open
Abstract
Trisomy 21, also known as Down Syndrome (DS), is the most common chromosome abnormality and causes intellectual disability. Long non-coding RNA (lncRNA) growth arrest-specific 5 (GAS5), whose differential expression has recently been reported in patients with Klinefelter syndrome, has been addressed to play a role in the development of inflammatory and autoimmune diseases, vascular endothelial cells apoptosis and atherosclerosis, all being common features in patients with DS. Therefore, the aim of this study was to assess the lncRNA GAS5 expression profile in DS patients and in controls. lncRNA GAS5 levels were evaluated by qRT-PCR assay in 23 patients with DS and 23 age-matched controls. A significant lncRNA GAS5 down-regulation was observed in patients with DS by RT-PCR analysis, The RNA sequencing experiments confirmed the qRT-PCR data. LncRNA GAS5 down-expression may play a role in the development of some typical features of the patients with DS and, particularly, in inflammatory and autoimmune diseases.
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Affiliation(s)
| | - Giovanna Marchese
- Genomix4Life Srl, Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi (SA), Italy
| | - Angela Cordella
- Genomix4Life Srl, Department of Medicine, Surgery and Dentistry "Scuola Medica Salernitana", University of Salerno, Baronissi (SA), Italy
| | - Rossella Cannarella
- Department of Clinical and Experimental Medicine, University of Catania.95123 Catania. Italy
| | | | | | - Aldo E Calogero
- Department of Clinical and Experimental Medicine, University of Catania.95123 Catania. Italy
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