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Mora P, Chapouly C. Astrogliosis in multiple sclerosis and neuro-inflammation: what role for the notch pathway? Front Immunol 2023; 14:1254586. [PMID: 37936690 PMCID: PMC10627009 DOI: 10.3389/fimmu.2023.1254586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023] Open
Abstract
Multiple sclerosis is an autoimmune inflammatory disease of the central nervous system leading to neurodegeneration. It affects 2.3 million people worldwide, generally younger than 50. There is no known cure for the disease, and current treatment options - mainly immunotherapies to limit disease progression - are few and associated with serious side effects. In multiple sclerosis, disruption of the blood-brain barrier is an early event in the pathogenesis of lesions, predisposing to edema, excito-toxicity and inflammatory infiltration into the central nervous system. Recently, the vision of the blood brain barrier structure and integrity has changed and include contributions from all components of the neurovascular unit, among which astrocytes. During neuro-inflammation, astrocytes become reactive. They undergo morphological and molecular changes named "astrogliosis" driving the conversion from acute inflammatory injury to a chronic neurodegenerative state. Astrogliosis mechanisms are minimally explored despite their significance in regulating the autoimmune response during multiple sclerosis. Therefore, in this review, we take stock of the state of knowledge regarding astrogliosis in neuro-inflammation and highlight the central role of NOTCH signaling in the process of astrocyte reactivity. Indeed, a very detailed nomenclature published in nature neurosciences in 2021, listing all the reactive astrocyte markers fully identified in the literature, doesn't cover the NOTCH signaling. Hence, we discuss evidence supporting NOTCH1 receptor as a central regulator of astrogliosis in the pathophysiology of neuro-inflammation, notably multiple sclerosis, in human and experimental models.
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Affiliation(s)
- Pierre Mora
- Université de Bordeaux, Institut national de la santé et de la recherche médicale (INSERM), Biology of Cardiovascular Diseases, Pessac, France
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Hyperbaric Oxygen Treatment in Spinal Cord Injury Recovery: Profiling Long Noncoding RNAs. Spine (Phila Pa 1976) 2023; 48:213-222. [PMID: 36607628 DOI: 10.1097/brs.0000000000004525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 09/27/2022] [Indexed: 01/07/2023]
Abstract
STUDY DESIGN A functional, transcriptome, and long noncoding RNAs (lncRNAs) expression analysis in the spinal cord of mice after hyperbaric oxygen (HBO) treatment. OBJECTIVE We aimed to explore the mechanism by which HBO treats spinal cord injury (SCI) at the level of lncRNAs. SUMMARY OF BACKGROUND DATA Immense amounts of research have established that HBO treatment promotes the recovery of neurological function after SCI. The mechanism of action remains to be clarified. METHODS High-throughput RNA sequencing, Gene Ontology, and Kyoto Encyclopedia of Genes and Genomes enrichment analysis were used to profile lncRNA expression and analyze biological function in the spinal cords of mice from sham-operated, SCI, and HBO-treated groups. The differential expression of lncRNA between the groups was assessed using real-time quantitative polymerase chain reaction. RESULTS Differential expression across 577 lncRNAs was identified among the three groups. GO analysis showed that free ubiquitin chain polymerization, ubiquitin homeostasis, DNA replication, synthesis of RNA primer, single-stranded telomeric DNA binding, and alpha-amylase activity were significantly enriched. Kyoto Encyclopedia of Genes and Genomes enrichment analysis displayed that vitamin B6 metabolism, one carbon pool by folate, DNA replication, lysine degradation, beta-alanine metabolism, fanconi anemia pathway, and Notch signal pathway were the main pathways with enrichment significance. LncRNAs NONMMUT 092674.1, NONMMUT042986.2, and NONMMUT018850.2 showed significantly different expression between the SCI and the other two groups (P<0.05, <0.01). CONCLUSIONS This study is the first to determine the expression profiles of lncRNAs in the injured spinal cord after HBO treatment. We identified several important dysregulated lncRNAs in this setting. These results help us better understand the mechanism by which HBO treats SCI and provide new potential therapeutic targets for SCI.
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Zhou J, Guo H, Yang A, Liu T, Li P, Cui H, Wang Y, Tang T. Buyang Huanwu Decoction: A Traditional Chinese Medicine, Promotes Lactate-Induced Angiogenesis in Experimental Intracerebral Hemorrhage. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2022; 2022:4063315. [PMID: 36349188 PMCID: PMC9637474 DOI: 10.1155/2022/4063315] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/01/2022] [Indexed: 09/08/2023]
Abstract
Identifying the underlying mechanisms and exploring effective therapies for intracerebral hemorrhage (ICH) are urgently needed. Here, we aim to elucidate the potential roles and underlying mechanisms of Buyang Huanwu decoction (BYHWD) in ICH. In the first set of experiments, rats were randomly divided into five groups: Sham, ICH, ICH + sodium oxamate (OXA), ICH + BYHWD, and ICH + BYHWD + OXA. The lactate level around the hematoma was evaluated. PCNA+/vWF+ nuclei were observed. Additionally, an online bioinformatics analysis tool was used to predict the BYHWD druggable targets related to angiogenesis. Then, we validated these predictions. In the second set, exogenous sodium L-lactate (Lac) was infused into the intact brains of rats. Rats were randomly divided into three groups: Sham, Lac, and Lac + YC-1. The numbers of PCNA+/vWF+ nuclei and the expression of HIF-1α and VEGF were evaluated. In the first set of experiments, compared with the ICH group, the BYHWD group exhibited significantly increased numbers of PCNA+/vWF+ nuclei, and neurological dysfunction was markedly improved. Bioinformatics analysis revealed that the improvements caused by BYHWD indicated a role for the HIF-1α pathway. The HIF-1α and VEGF protein levels were upregulated after BYHWD administration. Moreover, we verified that lactate was involved in the predicted mechanisms. In the second set, lactate facilitated angiogenesis and HIF-1α and VEGF expression. Co-infusion with a HIF-1α inhibitor, YC-1, significantly inhibited these effects. Our data suggest that the pharmacological effects of BYHWD involve lactate-induced angiogenesis, these data may provide new evidence for its use in ICH.
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Affiliation(s)
- Jing Zhou
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- Shanxi Province Academy of Traditional Chinese Medicine, Shanxi Province Hospital of Traditional Chinese Medicine, Taiyuan 030012, Shanxi, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Hao Guo
- Department of Anesthesiology, Shanxi Provincial People's Hospital, Affiliate of Shanxi Medical University, Taiyuan 030000, Shanxi, China
| | - Ali Yang
- Department of Neurology, Henan Province People's Hospital, Zhengzhou 450003, Henan, China
| | - Tao Liu
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- Department of Gerontology, Traditional Chinese Medicine Hospital Affliate to Xinjiang Medical University, Urumqi 830000, Xinjiang, China
| | - Pengfei Li
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Hanjin Cui
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yang Wang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Tao Tang
- Institute of Integrative Medicine, Department of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
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Jiang H, Zhang Y, Yue J, Shi Y, Xiao B, Xiao W, Luo Z. Non-coding RNAs: The Neuroinflammatory Regulators in Neurodegenerative Diseases. Front Neurol 2022; 13:929290. [PMID: 36034298 PMCID: PMC9414873 DOI: 10.3389/fneur.2022.929290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 06/23/2022] [Indexed: 01/09/2023] Open
Abstract
As a common indication of nervous system diseases, neuroinflammation has attracted more and more attention, especially in the process of a variety of neurodegenerative diseases, such as Alzheimer's disease and Parkinson's disease. Two types of non-coding RNAs (ncRNAs) are widely involved in the process of neuroinflammation in neurodegenerative diseases, namely long non-coding RNAs (lncRNAs) and microRNAs (miRNAs). However, no research has systematically summarized that lncRNAs and miRNAs regulate neurodegenerative diseases through neuroinflammatory mechanisms. In this study, we summarize four main mechanisms of lncRNAs and miRNAs involved in neuroinflammation in neurodegenerative diseases, including the imbalance between proinflammatory and neuroprotective cells in microglia and astrocytes, NLRP3 inflammasome, oxidative stress, and mitochondrial dysfunction, and inflammatory mediators. We hope to clarify the regulatory mechanism of lncRNAs and miRNAs in neurodegenerative diseases and provide new insights into the etiological treatment of neurodegenerative diseases from the perspective of neuroinflammation.
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Affiliation(s)
- Hao Jiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- Xiangya School of Medicine, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Ying Zhang
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Juan Yue
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Yuchen Shi
- Xiangya School of Medicine, Central South University, Changsha, China
| | - Bo Xiao
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Epileptic Disease of Hunan Province, Central South University, Changsha, China
| | - Wenbiao Xiao
- Department of Geriatrics, The Second Xiangya Hospital of Central South University, Changsha, China
- *Correspondence: Wenbiao Xiao
| | - Zhaohui Luo
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
- Clinical Research Center for Epileptic Disease of Hunan Province, Central South University, Changsha, China
- Zhaohui Luo
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Li DY, Gao SJ, Sun J, Zhang LQ, Wu JY, Song FH, Liu DQ, Zhou YQ, Mei W. Notch signaling activation contributes to paclitaxel-induced neuropathic pain via activation of A1 astrocytes. Eur J Pharmacol 2022; 928:175130. [PMID: 35777441 DOI: 10.1016/j.ejphar.2022.175130] [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: 03/31/2022] [Revised: 06/18/2022] [Accepted: 06/24/2022] [Indexed: 12/29/2022]
Abstract
Paclitaxel-induced neuropathic pain (PINP) is a progressive and refractory side effect of chemotherapy with few effective treatments at present. It is well-established that astrocytes activation contributes to the development of PINP. Recent reports showed astrocytes can be divided into A1 and A2 phenotypes. However, whether the transformation of astrocytes participates in PINP and the underlying mechanisms remain unknown. As Notch signaling pathway have shown to be involved in neuropathic pain, we aimed to investigate the relationship between Notch signaling pathway and A1 astrocytes in PINP. Herein we found that both A1 astrocytes and Notch signaling were markedly activated in the spinal cord of PINP rats and the downstream molecules of Notch signaling were colocalized with A1 astrocytes. DAPT (an inhibitor of Notch signaling) not only suppressed the mechanical allodynia of PINP rats, but also inhibited the activation of Notch signaling pathway and A1 astrocytes. Furthermore, Jagged1 (a ligand of Notch1 receptors) dose-dependently induced mechanical hyperalgesia in naïve rats and simultaneously led to Notch signaling activation and A1 astrocytes transformation, all of which were inhibited by DAPT. Taken together, these results demonstrate Notch signaling activation contributes to PINP via A1 astrocytes activation, which provides a promising therapeutic target for PINP.
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Affiliation(s)
- Dan-Yang Li
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Shao-Jie Gao
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jia Sun
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Long-Qing Zhang
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jia-Yi Wu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fan-He Song
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dai-Qiang Liu
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ya-Qun Zhou
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Wei Mei
- Department of Anesthesiology and Pain Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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Fei X, Dou YN, Wang L, Wu X, Huan Y, Wu S, He X, Lv W, Wei J, Fei Z. Homer1 promotes the conversion of A1 astrocytes to A2 astrocytes and improves the recovery of transgenic mice after intracerebral hemorrhage. J Neuroinflammation 2022; 19:67. [PMID: 35287697 PMCID: PMC8922810 DOI: 10.1186/s12974-022-02428-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/03/2022] [Indexed: 12/24/2022] Open
Abstract
Background Inflammation induced by intracerebral hemorrhage (ICH) is one of the main causes of the high mortality and poor prognosis of patients with ICH. A1 astrocytes are closely associated with neuroinflammation and neurotoxicity, whereas A2 astrocytes are neuroprotective. Homer scaffolding protein 1 (Homer1) plays a protective role in ischemic encephalopathy and neurodegenerative diseases. However, the role of Homer1 in ICH-induced inflammation and the effect of Homer1 on the phenotypic conversion of astrocytes remain unknown. Methods Femoral artery autologous blood from C57BL/6 mice was used to create an ICH model. We use the A1 phenotype marker C3 and A2 phenotype marker S100A10 to detect astrocyte conversion after ICH. Homer1 overexpression/knock-down mice were constructed by adeno-associated virus (AAV) infection to explore the role of Homer1 and its mechanism of action after ICH. Finally, Homer1 protein and selumetinib were injected into in situ hemorrhage sites in the brains of Homer1flox/flox/Nestin-Cre+/− mice to study the efficacy of Homer1 in the treatment of ICH by using a mouse cytokine array to explore the potential mechanism. Results The expression of Homer1 peaked on the third day after ICH and colocalized with astrocytes. Homer1 promotes A1 phenotypic conversion in astrocytes in vivo and in vitro. Overexpression of Homer1 inhibits the activation of MAPK signaling, whereas Homer1 knock-down increases the expression of pathway-related proteins. The Homer1 protein and selumetinib, a non-ATP competitive MEK1/2 inhibitor, improved the outcome in ICH in Homer1flox/flox/Nestin-Cre+/− mice. The efficacy of Homer1 in the treatment of ICH is associated with reduced expression of the inflammatory factor TNFSF10 and increased expression of the anti-inflammatory factors activin A, persephin, and TWEAK. Conclusions Homer1 plays an important role in inhibiting inflammation after ICH by suppressing the A1 phenotype conversion in astrocytes. In situ injection of Homer1 protein may be a novel and effective method for the treatment of inflammation after ICH.
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Affiliation(s)
- Xiaowei Fei
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Ya-Nan Dou
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Li Wang
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Xiuquan Wu
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Yu Huan
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Shuang Wu
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Xin He
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Weihao Lv
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China
| | - Jialiang Wei
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China.
| | - Zhou Fei
- Department of Neurosurgery, Xijing Hospital, Air Force Military Medical University, No. 127, Changle West Road, Xincheng District, Xi'an, 710032, Shaanxi, China.
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Ribeiro TN, Delgado-García LM, Porcionatto MA. Notch1 and Galectin-3 Modulate Cortical Reactive Astrocyte Response After Brain Injury. Front Cell Dev Biol 2021; 9:649854. [PMID: 34222228 PMCID: PMC8244823 DOI: 10.3389/fcell.2021.649854] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 05/04/2021] [Indexed: 12/23/2022] Open
Abstract
After a brain lesion, highly specialized cortical astrocytes react, supporting the closure or replacement of the damaged tissue, but fail to regulate neural plasticity. Growing evidence indicates that repair response leads astrocytes to reprogram, acquiring a partially restricted regenerative phenotype in vivo and neural stem cells (NSC) hallmarks in vitro. However, the molecular factors involved in astrocyte reactivity, the reparative response, and their relation to adult neurogenesis are poorly understood and remain an area of intense investigation in regenerative medicine. In this context, we addressed the role of Notch1 signaling and the effect of Galectin-3 (Gal3) as underlying molecular candidates involved in cortical astrocyte response to injury. Notch signaling is part of a specific neurogenic microenvironment that maintains NSC and neural progenitors, and Gal3 has a preferential spatial distribution across the cortex and has a central role in the proliferative capacity of reactive astrocytes. We report that in vitro scratch-reactivated cortical astrocytes from C57Bl/6J neonatal mice present nuclear Notch1 intracellular domain (NICD1), indicating Notch1 activation. Colocalization analysis revealed a subpopulation of reactive astrocytes at the lesion border with colocalized NICD1/Jagged1 complexes compared with astrocytes located far from the border. Moreover, we found that Gal3 increased intracellularly, in contrast to its extracellular localization in non-reactive astrocytes, and NICD1/Gal3 pattern distribution shifted from diffuse to vesicular upon astrocyte reactivation. In vitro, Gal3–/– reactive astrocytes showed abolished Notch1 signaling at the lesion core. Notch1 receptor, its ligands (Jagged1 and Delta-like1), and Hes5 target gene were upregulated in C57Bl/6J reactive astrocytes, but not in Gal3–/– reactive astrocytes. Finally, we report that Gal3–/– mice submitted to a traumatic brain injury model in the somatosensory cortex presented a disrupted response characterized by the reduced number of GFAP reactive astrocytes, with smaller cell body perimeter and decreased NICD1 presence at the lesion core. These results suggest that Gal3 might be essential to the proper activation of Notch signaling, facilitating the cleavage of Notch1 and nuclear translocation of NICD1 into the nucleus of reactive cortical astrocytes. Additionally, we hypothesize that reactive astrocyte response could be dependent on Notch1/Jagged1-Hes5 signaling activation following brain injury.
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Affiliation(s)
- Tais Novaki Ribeiro
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Lina Maria Delgado-García
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Marimelia A Porcionatto
- Laboratory of Molecular Neurobiology, Department of Biochemistry, Universidade Federal de São Paulo, São Paulo, Brazil
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Qiu K, Ma C, Lu L, Wang J, Chen B, Mao H, Wang Y, Wang H. DAPT suppresses proliferation and migration of hepatocellular carcinoma by regulating the extracellular matrix and inhibiting the Hes1/PTEN/AKT/mTOR signaling pathway. J Gastrointest Oncol 2021; 12:1101-1116. [PMID: 34295560 DOI: 10.21037/jgo-21-235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 05/28/2021] [Indexed: 11/06/2022] Open
Abstract
Background The aim of the present study was to investigate the antitumor properties of N-(N-[3,5-difluorophenacetyl]-1-alanyl)-S-phenylglycine t-butyl ester (DAPT) against hepatocellular carcinoma (HCC), as well as the underlying mechanism. Methods Immunohistochemistry and quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay were used to determine the expression of Notch1 in HCC tissues. The expression of Notch1 in 3 HCC cell lines was evaluated by qRT-PCR and Western blot. The proliferation ability of cells was detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and colony formation assays. Flow cytometry and Transwell assay were used to check the apoptosis and migration of HepG2 cells, respectively. Western blot was used to determine the expression level of Notch1, Hes1, Phosphatase and tensin homolog (PTEN), protein kinase B1 (AKT1), phosphorylated AKT1, mammalian target of rapamycin (mTOR), phosphorylated mTOR, intracellular adhesion molecule-1, vascular cell adhesion protein 1, matrix metalloproteinase (MMP)-2, MMP-9, and focal adhesion kinase in cells and tumor tissues. A HepG2 xenograft experiment was conducted to evaluate the in vivo antitumor properties of DAPT. Results Notch1 was found to be significantly upregulated in both HCC tissues and cell lines. DAPT significantly inhibited the proliferation and migration of HepG2 cells in a dose-dependent manner, accompanied by the suppression of Notch1/Hes1 signaling, inactivation of AKT/mTOR signaling, downregulation of MMPs, and decreased expression of adhesion molecules. The activation of Notch1/Hes1 or AKT/mTOR signaling removed the inhibitory effect of DAPT on the proliferation and migration of HepG2 cells, as well as the inhibitory properties of DAPT on the expression of MMPs and adhesion molecules. The antitumor properties and regulatory effect of DAPT against the extracellular matrix (ECM) and Hes1/PTEN/AKT/mTOR signaling were verified by the HepG2 xenograft experiments. Conclusions DAPT could suppress the proliferation and migration of HCC by regulating the ECM and inhibiting the Hes1/PTEN/AKT/mTOR signaling pathway.
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Affiliation(s)
- Kaijie Qiu
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Chenyang Ma
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Lingchao Lu
- Department of Common Surgery, Yuyao Fourth People's Hospital, Ningbo, China
| | - Jie Wang
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Baiwen Chen
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Haixiang Mao
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Yanmin Wang
- Department of operation room, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Haibiao Wang
- Department of Hepatobiliary and Pancreatic Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, China
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Liu X, Zhou F, Wang W, Chen G, Zhang Q, Lv R, Zhao Z, Li X, Yu Q, Meves JM, Hua H, Li X, Wang X, Sun H, Gao D. IL-9-triggered lncRNA Gm13568 regulates Notch1 in astrocytes through interaction with CBP/P300: contribute to the pathogenesis of experimental autoimmune encephalomyelitis. J Neuroinflammation 2021; 18:108. [PMID: 33971906 PMCID: PMC8112022 DOI: 10.1186/s12974-021-02156-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/22/2021] [Indexed: 12/20/2022] Open
Abstract
Background Interleukin 9 (IL-9), produced mainly by T helper 9 (Th9) cells, has been recognized as an important regulator in multiple sclerosis (MS) and its animal model, experimental autoimmune encephalomyelitis (EAE). Astrocytes respond to IL-9 and reactive astrocytes always associate with blood-brain barrier damage, immune cell infiltration, and spinal injury in MS and EAE. Several long non-coding RNAs (lncRNAs) with aberrant expression have been identified in the pathogenesis of MS. Here, we examined the effects of lncRNA Gm13568 (a co-upregulated lncRNA both in EAE mice and in mouse primary astrocytes activated by IL-9) on the activation of astrocytes and the process of EAE. Methods In vitro, shRNA-recombinant lentivirus with glial fibrillary acidic protein (GFAP) promoter were performed to determine the relative gene expression and proinflammatory cytokines production in IL-9 treated-astrocytes using Western blot, real-time PCR, and Cytometric Bead Array, respectively. RIP and ChIP assays were analyzed for the mechanism of lncRNA Gm13568 regulating gene expression. Immunofluorescence assays was performed to measure the protein expression in astrocytes. In vivo, H&E staining and LFB staining were applied to detect the inflammatory cells infiltrations and the medullary sheath damage in spinal cords of EAE mice infected by the recombinant lentivirus. Results were analyzed by one-way ANOVA or Student’s t test, as appropriate. Results Knockdown of the endogenous lncRNA Gm13568 remarkably inhibits the Notch1 expression, astrocytosis, and the phosphorylation of signal transducer and activator of transcription 3 (p-STAT3) as well as the production of inflammatory cytokines and chemokines (IL-6, TNF-α, IP-10) in IL-9-activated astrocytes, in which Gm13568 associates with the transcriptional co-activators CBP/P300 which are enriched in the promoter of Notch1 genes. More importantly, inhibiting Gm13568 with lentiviral vector in astrocytes ameliorates significantly inflammation and demyelination in EAE mice, therefore delaying the EAE process. Conclusions These findings uncover that Gm13568 regulates the production of inflammatory cytokines in active astrocytes and affects the pathogenesis of EAE through the Notch1/STAT3 pathway. LncRNA Gm13568 may be a promising target for treating MS and demyelinating diseases. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02156-5.
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Affiliation(s)
- Xiaomei Liu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China.
| | - Feng Zhou
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Weixiao Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Guofang Chen
- Neurology Department, The Affiliated Xuzhou Center Hospital of Nanjing University of Chinese Medicine, Xuzhou, People's Republic of China.,Neurology Department, Xuzhou Central Hospital, Xuzhou, People's Republic of China.,Neurology Department, Xuzhou Clinical School of Xuzhou Medical University, Xuzhou, Jiangsu, 221009, People's Republic of China
| | - Qingxiu Zhang
- Department of Neurology, Second Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, 221006, People's Republic of China
| | - Ruixue Lv
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Zijun Zhao
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Xiangyang Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Qian Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Jessica M Meves
- Department of Psychiatry, University of Michigan Medicine, MI48109, Ann Arbor, Michigan, USA
| | - Hui Hua
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Xiaocui Li
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Xiaotian Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology and Laboratory of Infection and Immunity, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Hong Sun
- Department of Physiology, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, People's Republic of China
| | - Dianshuai Gao
- Xuzhou Key Laboratory of Neurobiology, Department of Neurobiology and Anatomy, Xuzhou Medical University, Xuzhou, Jiangsu, 221004, People's Republic of China.
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10
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Chen J, Yuan XY, Zhang X. Intracerebral hemorrhage influences hippocampal neurogenesis and neurological function recovery via Notch1 signaling. Neuroreport 2021; 32:489-497. [PMID: 33657078 PMCID: PMC8016514 DOI: 10.1097/wnr.0000000000001614] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 12/22/2020] [Indexed: 11/26/2022]
Abstract
Intracerebral hemorrhage (ICH) is associated with high rate of mortality and morbidity, but lacks effective therapies. Accumulating studies indicated that the hippocampal neurogenesis plays an essential role in the recovery of neurological function after ICH. The Notch1 signaling pathway shows important roles in neurogenesis. However, the effects of Notch1 on the recovery of neurological function after ICH remain unclear. Here, we used ICH mice model to investigate whether Notch1 signaling was involved in the hippocampal neurogenesis and the recovery of neurological function post-ICH. Our results showed that the rate of symmetric division pattern of hippocampal neural stem cells (NSCs) decreased significantly at 3 days after ICH. Meanwhile, the expression of Notch1 in the hippocampus also was reduced significantly. However, Notch1 activator treatment enhanced the expression of Notch1 and increased the number of Sox2+GFAP+ cells. Further, the rate of symmetric division pattern of NSCs also increased after Notch1 activator treatment in mice with ICH. Importantly, the number of DCX+ cells and BrdU+NeuN+ in hippocampus were increased on 28 days post-ICH as the Notch1 expression was upregulated. The motor function and spatial memory ability in post-ICH mice following Notch1 activator treatment also were improved. Taken together, our results suggested that Notch1 signaling could influence the recovery of long-term neurological function by regulating the proliferation and differentiation of the hippocampal NSCs in mice after ICH. Our study may provide ideas for the improvement of neurological function and spatial memory defects after ICH.
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Affiliation(s)
- Jing Chen
- Department of Neurology, Central Hospital of Baoji, Baoji
| | - Xing-Yun Yuan
- Department of Neurology, First Affiliated Hospital of Xi’an Jiao Tong University, Xian, Shanxi Province
| | - Xu Zhang
- Department of Cardiac Surgery, The General Hospital of Northern Theater Command, Shenyang, Liaoning, China
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11
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Kinoshita K, Ohtomo R, Takase H, Hamanaka G, Chung KK, Lok J, Katsuki H, Arai K. Different responses after intracerebral hemorrhage between young and early middle-aged mice. Neurosci Lett 2020; 735:135249. [PMID: 32673691 DOI: 10.1016/j.neulet.2020.135249] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Revised: 07/10/2020] [Accepted: 07/11/2020] [Indexed: 02/06/2023]
Abstract
Although aging is a major risk factor for intracerebral hemorrhage (ICH), there are very few studies comparing ICH pathology between young and early middle-aged mice. In this study, 8-month old mice (early middle-aged mice) were compared against 2-month old mice (young mice) in neurological and histological changes after ICH induction, such as body weight, lesion volume, astrocytic responses, and motor and cognitive functions. At day 8 after ICH, there was no significant difference in lesion volume between the two groups, and both groups did not exhibit significant cognitive decline, as assessed by spontaneous alternative Y-maze test. On the other hand, 8-month old mice showed delayed recovery from body weight loss, along with reduced astrocytic activation. Interestingly, in the two motor function tests (beam-walking test and corner turn test), 8-month old mice exhibited lower scores only in the beam-walking test, suggesting a partial disturbance in motor recovery after ICH. These results suggest that age-related differences in ICH pathology may already start to appear in early middle-aged brains.
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Affiliation(s)
- Keita Kinoshita
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA; Department of Chemico-Pharmacological Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Ryo Ohtomo
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA; Department of Neurology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan
| | - Hajime Takase
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA; Department of Neurosurgery, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Gen Hamanaka
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Kelly K Chung
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Josephine Lok
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA
| | - Hiroshi Katsuki
- Department of Chemico-Pharmacological Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Ken Arai
- Neuroprotection Research Laboratory, Departments of Radiology and Neurology, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA 02129, USA.
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12
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Zhang Q, Zhang J, Zhang J, Aerxiding P, Quhai A, Chen C, Shan L. The Biological-Behavioral Effect Of Neuritin On Non-Small Cell Lung Cancer Vascular Endothelial Cells Via VEGFR And Notch1. Onco Targets Ther 2019; 12:9747-9755. [PMID: 31819478 PMCID: PMC6876221 DOI: 10.2147/ott.s212771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 09/06/2019] [Indexed: 12/30/2022] Open
Abstract
Purpose This study aims to elucidate the biological behavior of Neuritin abnormal expression in pulmonary vascular endothelial cells (VECs) of non-small cell lung cancer (NSCLC), and explore its possible underlying mechanisms. Patients and methods Primary NSCLC-VECs were isolated from 10 cancer tissues from NSCLC patients, purified and identified by CD34 and Factor VIII staining. Real-time PCR and Western-blot were adopted for detecting the expression levels of Neuritin, Notch1, and VEGFR in NSCLC-VECs and HPMECs. Neuritin-overexpression, Neuritin-knockdown NSCLC-VECs and HPMECs were constructed by transfection of pcDNA3, 1-Neuritin vector, and pBS/U6-Neuritin siRNA. Changes in cell proliferation, migration, cell cycle, and apoptosis were determined by using the MTT assay, scratch assay, transwell migration assay, and flow cytometry, respectively. Post-transfection changes in cell morphology were examined by scanning electron microscopy. Results The expression of Neuritin in NSCLC-VECs was significantly higher compared to that in HPMECs (p<0.01). Overexpression of Neuritin increased the expression of VEGFR while it reduced the expression of Notch1 (p<0.01); it also promoted cell proliferation, scratch healing, and in vitro migration (p<0.05) in HPMECs and NSCLC-VECs cells. Additionally, overexpression of Neuritin stimulated cell cycle progression and inhibited apoptosis in HPMECs and NSCLC-VECs (p<0.001). Under electron microscope, the pseudopodium of cell surface was obvious, indicating that the intercellular adhesion was upregulated. However, knockdown of Neuritin in HPMECs and NSCLC-VECs played exactly the opposite roles. Conclusion Neuritin was key in the progression of NSCLC through its biological activities, including anti-apoptosis, promoting VEC proliferation, migration, and cell cycle progression. Neuritin may affect its biological activity by positively regulating VEGFR expression and negatively regulating Notch1 signaling. Neuritin may serve as a potential biomarker for NSCLC.
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Affiliation(s)
- Qiao Zhang
- Department of Thoraciconcology, The Third Affiliated Hospital of Xinjiang Medical University, Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830011, People's Republic of China
| | - Juan Zhang
- Department of Respiratory and Critical Care Medicine, First People's Hospital of Kashgar, Xinjiang 844000, People's Republic of China
| | - Jian Zhang
- Health Corps of the People's Liberation Army 69260 Troops, Urumqi, Xinjiang, 830002, People's Republic of China
| | - Patiguli Aerxiding
- Department of Thoraciconcology, The Third Affiliated Hospital of Xinjiang Medical University, Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830011, People's Republic of China
| | - Amina Quhai
- Department of Thoraciconcology, The Third Affiliated Hospital of Xinjiang Medical University, Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830011, People's Republic of China
| | - Cuncun Chen
- Department of Thoracic Surgery, Chest Hospital of Xinjiang Uyghur Autonomous Region, Urumqi, Xinjiang 830049, People's Republic of China
| | - Li Shan
- Department of Thoraciconcology, The Third Affiliated Hospital of Xinjiang Medical University, Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830011, People's Republic of China
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13
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Zhang S, Botchway BO, Zhang Y, Liu X. Resveratrol can inhibit Notch signaling pathway to improve spinal cord injury. Ann Anat 2019; 223:100-107. [DOI: 10.1016/j.aanat.2019.01.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/30/2019] [Accepted: 01/31/2019] [Indexed: 12/12/2022]
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14
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Liu SP, Huang L, Flores J, Ding Y, Li P, Peng J, Zuo G, Zhang JH, Lu J, Tang JP. Secukinumab attenuates reactive astrogliosis via IL-17RA/(C/EBPβ)/SIRT1 pathway in a rat model of germinal matrix hemorrhage. CNS Neurosci Ther 2019; 25:1151-1161. [PMID: 31020769 PMCID: PMC6776744 DOI: 10.1111/cns.13144] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 04/08/2019] [Accepted: 04/09/2019] [Indexed: 12/28/2022] Open
Abstract
Aims Reactive astrogliosis plays a critical role in neurological deficits after germinal matrix hemorrhage (GMH). It has been reported that interleukin‐17A and IL‐17A receptor IL‐17RA/(C/EBPβ)/SIRT1 signaling pathway enhances reactive astrogliosis after brain injuries. We evaluated the effects of secukinumab on reactive astrogliosis in a rat pup model of GMH. Methods A total of 146 Sprague Dawley P7 rat pups were used. GMH was induced by intraparenchymal injection of collagenase. Secukinumab was administered intranasally 1 hour post‐GMH. C/EBPβ CRISPR or SIRT1 antagonist EX527 was administrated intracerebroventricularly (icv) 48 hours and 1 hour before GMH induction, respectively. Neurobehavior, Western blot, histology, and immunohistochemistry were used to assess treatment regiments in the short term and long term. Results The endogenous IL‐17A, IL‐17RA, C/EBPβ, and GFAP and proliferation marker CyclinD1 were increased, while SIRT1 expression was decreased after GMH. Secukinumab treatment improved neurological deficits, reduced ventriculomegaly, and increased cortical thickness. Additionally, treatment increased SIRT1 expression and lowered proliferation proteins PCNA and CyclinD1 as well as GFAP expression. C/EBPβ CRISPR activation plasmid and EX527 reversed the antireactive astrogliosis effects of secukinumab. Conclusion Secukinumab attenuated reactive astrogliosis and reduced neurological deficits after GMH, partly by regulating IL‐17RA/(C/EBPβ)/SIRT1 pathways. Secukinumab may provide a promising therapeutic strategy for GMH patients.
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Affiliation(s)
- Sheng-Peng Liu
- Department of Pediatrics, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China.,Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Lei Huang
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California.,Department of Neurosurgery, School of Medicine, Loma Linda University, Loma Linda, California
| | - Jerry Flores
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Yan Ding
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Peng Li
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Jun Peng
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Gang Zuo
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
| | - John H Zhang
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California.,Department of Neurosurgery, School of Medicine, Loma Linda University, Loma Linda, California.,Department of Anesthesiology, School of Medicine, Loma Linda University, Loma Linda, California
| | - Jun Lu
- Department of Pediatrics, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, Haikou, China
| | - Ji-Ping Tang
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, California
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15
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Kang X, Zhou HJ, Yang J, Zhong JH, Tang T, Cui HJC, Zhou JH, Mei ZG. Buyang Huanwu Decoction () Attenuates Glial Scar by Downregulating the Expression of Leukemia Inhibitory Factor in Intracerebral Hemorrhagic Rats. Chin J Integr Med 2018; 25:264-269. [PMID: 30607786 DOI: 10.1007/s11655-018-2917-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/02/2018] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To evaluate the effect of Buyang Huanwu Decoction (, BYHWD) on glial scar after intracerebral hemorrhage (ICH) and investigate the underlying mechanism. METHODS Collagenase type VII (0.5 U) was injected stereotaxically into right globus pallidus to induce ICH model. One hundred and twenty Sprague-Dawley rats were randomly divided into 3 groups according to a random number table, including normal group (n=40), ICH model group (n=40) and BYHWD group (n=40), respectively. After ICH, the rats in the BYHWD group were intragastrically administered with BYHWD (4.36 g/kg) once a day for 21 days, while the rats in ICH group were administered with equal volume of distilled water for 21 days, respectively. Double immunolabeling was performed for proliferating cell nuclear antigen (PCNA)+/glial fibrillary acidic protein (GFAP)+ nuclei. The expression of GFAP and leukemia inhibitory factor (LIF) was evaluated by immunohistochemistry and quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR). RESULTS The astrocytes with hypertrophied morphology around the hematoma was observed on day 3 after ICH. The number of GFAP positive cells and GFAP mRNA levels increased notably on day 3 and reached the peak on day 14 post-ICH (P<0.01). PCNA+/GFAP+ nuclei were observed around the hematoma and reached the peak on day 14 post-ICH (P<0.01). In addition, LIF-positive astrocytes and LIF mRNA level in the hemorrhagic region increased significantly till day 14 post-ICH (P<0.01). However, BYHWD not only reduced the number of PCNA+/GFAP+ nuclei, but also decreased GFAP and LIF levels (P<0.05). CONCLUSIONS BYHWD could attenuate ICH-induced glial scar by downregulating the expression of LIF in the rats.
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Affiliation(s)
- Xiao Kang
- Institute of Neurology, China Three Gorges University, Yichang, Hubei Province, 443003, China.,Department of Neurology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei Province, 443003, China
| | - Hua-Jun Zhou
- Institute of Neurology, China Three Gorges University, Yichang, Hubei Province, 443003, China. .,Department of Neurology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei Province, 443003, China. .,Key Laboratory of Cardiovascular and Cerebrovascular Diseases Translational Medicine, China Three Gorges University, Yichang, Hubei Province, 443003, China.
| | - Jian Yang
- Key Laboratory of Cardiovascular and Cerebrovascular Diseases Translational Medicine, China Three Gorges University, Yichang, Hubei Province, 443003, China
| | - Jian-Hua Zhong
- Department of Intensive Care Unit, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei Province, 443003, China
| | - Tao Tang
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Han-Jin Cui Cui
- Institute of Integrative Medicine, Xiangya Hospital, Central South University, Changsha, 410008, China
| | - Jing-Hua Zhou
- Institute of Neurology, China Three Gorges University, Yichang, Hubei Province, 443003, China.,Department of Neurology, The First College of Clinical Medical Sciences, China Three Gorges University, Yichang, Hubei Province, 443003, China
| | - Zhi-Gang Mei
- Medical College of China Three Gorges University, Yichang, Hubei Province, 443002, China
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