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Zhou S, Liu C, Wang J, Ye J, Lian Q, Gan L, Deng S, Xu T, Guo Y, Li W, Zhang Z, Yang GY, Tang Y. CCL5 mediated astrocyte-T cell interaction disrupts blood-brain barrier in mice after hemorrhagic stroke. J Cereb Blood Flow Metab 2024; 44:367-383. [PMID: 37974301 PMCID: PMC10870968 DOI: 10.1177/0271678x231214838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 11/19/2023]
Abstract
The crosstalk between reactive astrocytes and infiltrated immune cells plays a critical role in maintaining blood-brain barrier (BBB) integrity. However, how astrocytes interact with immune cells and the effect of their interaction on BBB integrity after hemorrhagic stroke are still unclear. By performing RNA sequencing in astrocytes that were activated by interleukin-1α (IL-1α), tumor necrosis factor α (TNFα), and complement component 1q (C1q) treatment, we found CCL5 was among the top upregulated genes. Immunostaining and western blot results demonstrated that CCL5 was increased in mice brain after hemorrhagic stroke. Flow cytometry showed that knockout of astrocytic CCL5 reduced the infiltration of CD8+ but not CD4+ T and myeloid cells into the brain (p < 0.05). In addition, knockout CCL5 in astrocytes increased tight junction-related proteins ZO-1 and Occludin expression; reduced Evans blue leakage, perforin and granzyme B expression; improved neurobehavioral outcomes in hemorrhagic stroke mice (p < 0.05), while transplantation of CD8+ T cells reversed these protective effects. Moreover, co-culture of CD8+ T cells with bEnd.3 cells induced the apoptosis of bEnd.3 cells, which was rescued by inhibiting perforin. In conclusion, our study suggests that CCL5 mediated crosstalk between astrocytes and CD8+ T cells represents an important therapeutic target for protecting BBB in stroke.
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Affiliation(s)
- Shiyi Zhou
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Chang Liu
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Jixian Wang
- Department of Rehabilitation Medicine, Ruijin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Ye
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Qianyuan Lian
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Lin Gan
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Shiyu Deng
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Tongtong Xu
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yiyan Guo
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Wanlu Li
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Zhijun Zhang
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Guo-Yuan Yang
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| | - Yaohui Tang
- Shanghai Sixth People’s Hospital and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
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Wang J, Wang L, Wu Q, Cai Y, Cui C, Yang M, Sun B, Mao L, Wang Y. Interleukin-4 Modulates Neuroinflammation by Inducing Phenotypic Transformation of Microglia Following Subarachnoid Hemorrhage. Inflammation 2024; 47:390-403. [PMID: 37898992 PMCID: PMC10799105 DOI: 10.1007/s10753-023-01917-z] [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: 08/31/2023] [Revised: 10/08/2023] [Accepted: 10/10/2023] [Indexed: 10/31/2023]
Abstract
Neuroinflammation, a key pathological feature following subarachnoid hemorrhage (SAH), can be therapeutically targeted by inhibiting microglia M1 polarization and promoting phenotypic transformation to M2 microglia. Interleukin-4 (IL-4) is a pleiotropic cytokine known to its regulation of physiological functions of the central nervous system (CNS) and mediate neuroinflammatory processes. However, its specific role in neuroinflammation and microglia responses following SAH remains unexplored. In this investigation, we established both in vivo and in vitro SAH models and employed a comprehensive array of assessments, including ELISA, neurofunctional profiling, immunofluorescence staining, qRT-PCR, determination of phagocytic capacity, and RNA-Seq analyses. The findings demonstrate an elevated expression of IL-4 within cerebrospinal fluid (CSF) subsequent to SAH. Furthermore, exogenous administration of IL-4 ameliorates post-SAH neurofunctional deficits, attenuates cellular apoptosis, fosters M2 microglia phenotype conversion, and mitigates neuroinflammatory responses. The RNA-Seq analysis signifies that IL-4 governs the modulation of neuroinflammation in microglia within an in vitro SAH model through intricate cascades of signaling pathways, encompassing interactions between cytokines and cytokine receptors. These discoveries not only augment comprehension of the neuropathogenesis associated with post-SAH neuroinflammation but also present novel therapeutic targets for the management thereof.
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Affiliation(s)
- Jing Wang
- Medical College of Qingdao University, Qingdao, Shandong, 266021, China
- Institute for Neurological Research, School of Basic Medical Sciences of Shandong First Medical University & Shandong Academy of Medical Sciences, The Second Affiliated Hospital, Taian, Shandong, 271000, China
| | - Lili Wang
- Institute for Neurological Research, School of Basic Medical Sciences of Shandong First Medical University & Shandong Academy of Medical Sciences, The Second Affiliated Hospital, Taian, Shandong, 271000, China
| | - Qingjian Wu
- Department of Emergency, Jining No. 1 People's Hospital, No. 6, Jiankang Road, Jining, Shandong Province, 272011, China
| | - Yichen Cai
- Institute for Neurological Research, School of Basic Medical Sciences of Shandong First Medical University & Shandong Academy of Medical Sciences, The Second Affiliated Hospital, Taian, Shandong, 271000, China
| | - Chengfu Cui
- Cheeloo College of Medicine, Shandong University, Jinan, 250100, Shandong, China
| | - Ming Yang
- Department of Ultrasonic Diagnosis and Treatment, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China
| | - Baoliang Sun
- Medical College of Qingdao University, Qingdao, Shandong, 266021, China.
- Institute for Neurological Research, School of Basic Medical Sciences of Shandong First Medical University & Shandong Academy of Medical Sciences, The Second Affiliated Hospital, Taian, Shandong, 271000, China.
| | - Leilei Mao
- Institute for Neurological Research, School of Basic Medical Sciences of Shandong First Medical University & Shandong Academy of Medical Sciences, The Second Affiliated Hospital, Taian, Shandong, 271000, China.
| | - Yuan Wang
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, 250021, China.
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Tian F, Yi J, Liu Y, Chen B, Wang X, Ouyang Y, Liu J, Tang Y, Long H, Liu B. Integrating network pharmacology and bioinformatics to explore and experimentally verify the regulatory effect of Buyang Huanwu decoction on glycolysis and angiogenesis after cerebral infarction. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117218. [PMID: 37806535 DOI: 10.1016/j.jep.2023.117218] [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: 07/11/2023] [Revised: 09/07/2023] [Accepted: 09/20/2023] [Indexed: 10/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Promoting the recovery of cerebral blood circulation after cerebral infarction (CI) is an important intervention. Buyang Huanwu decoction (BHD) is a classic prescription for treating CI that promotes angiogenesis. Cytoplasmic glycolysis ischaemic-region cells after CI may be highly activated to maintain metabolic activity under hypoxia. From the perspective of long-term maintenance of glycolytic metabolism in the ischaemic area after CI, it may be beneficial to promote angiogenesis and maintain glial cell activation and neuronal survival. In this context, the regulatory relationship of lncRNAs and miRNAs with mRNAs is worthy of attention. Mining the competitive binding relationships among RNAs will aid in the screening of key gene targets post-CI. In this study, network pharmacology and bioinformatics were used to construct a ceRNA network, screen key targets, and explore the effect of glycolysis on angiogenesis during BHD-mediated CI regulation. AIM OF THE STUDY This study aimed to explore the effect of BHD on angiogenesis after glycolysis regulation in CI. MATERIALS AND METHODS According to the 21 active BHD ingredients we identified by our research team, we conducted network pharmacology. BHD targets that can regulate glycolysis and angiogenesis after CI were screened from the GeneCards, CTD and OMIM databases. We retrieved CI-related datasets from the GEO database and screened for differentially expressed lncRNAs and miRNAs. LncRNA‒miRNA-mRNA/TF targeting relationships were screened and organized with the miRcode, miRDB, TargetScan, miRWalk, and TransmiR v2.0 databases. Cytoscape was used to construct an lncRNA‒miRNA-mRNA/TF ceRNA network. Through BioGPS, key mRNAs/TFs in the network were screened for enrichment analysis. Animal experiments were then conducted to validate some key mRNAs/TFs and enriched signalling pathways. RESULTS PFKFB3 and other genes may help regulate glycolysis and angiogenesis through AMPK and other signalling pathways. The anti-CI effect of BHD may involve maintaining activation of genes such as AMPK and PFKFB3 in the ischaemic cortex, maintaining moderate glycolysis levels in brain tissue, and promoting angiogenesis. CONCLUSION BHD can regulate glycolysis and promote angiogenesis after CI through multiple pathways and targets, in which AMPK signalling pathway activation may be important.
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Affiliation(s)
- Fengming Tian
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China; Hunan University of Chinese Medicine, 300 Xueshi Road, Changsha, Hunan, 410006, China
| | - Jian Yi
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China; Hunan Academy of Chinese Medicine, 58 Lushan Road, Changsha, Hunan, 410007, China; Hunan University of Chinese Medicine, 300 Xueshi Road, Changsha, Hunan, 410006, China
| | - Yingfei Liu
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China; Hunan University of Chinese Medicine, 300 Xueshi Road, Changsha, Hunan, 410006, China
| | - Bowei Chen
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China; Hunan University of Chinese Medicine, 300 Xueshi Road, Changsha, Hunan, 410006, China
| | - Xiaoju Wang
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China
| | - Yin Ouyang
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China; Hunan University of Chinese Medicine, 300 Xueshi Road, Changsha, Hunan, 410006, China
| | - Jian Liu
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China
| | - Yan Tang
- Yiyang Medical College, 516 Yingbin Road, Yiyang, Hunan, 413499, China
| | - Hongping Long
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China
| | - Baiyan Liu
- The First Affiliated Hospital, Hunan University of Chinese Medicine, 95 Shaoshan Road, Changsha, Hunan, 410007, China; Hunan Academy of Chinese Medicine, 58 Lushan Road, Changsha, Hunan, 410007, China.
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Denorme F, Ajanel A, Campbell RA. Immunothrombosis in neurovascular disease. Res Pract Thromb Haemost 2024; 8:102298. [PMID: 38292352 PMCID: PMC10825058 DOI: 10.1016/j.rpth.2023.102298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 02/01/2024] Open
Abstract
A State of the Art lecture titled "Immunothrombosis in Neurovascular Diseases" was presented at the International Society on Thrombosis and Haemostasis Congress in 2023. Despite significant clinical advancements in stroke therapy, stroke remains a prominent contributor to both mortality and disability worldwide. Brain injury resulting from an ischemic stroke is a dynamic process that unfolds over time. Initially, an infarct core forms due to the abrupt and substantial blockage of blood flow. In the subsequent hours to days, the surrounding tissue undergoes gradual deterioration, primarily driven by sustained hypoperfusion, programmed cell death, and inflammation. While anti-inflammatory strategies have proven highly effective in experimental models of stroke, their successful translation to clinical use has proven challenging. To overcome this translational hurdle, a better understanding of the distinct immune response driving ischemic stroke brain injury is needed. In this review article, we give an overview of current knowledge regarding the immune response in ischemic stroke and the contribution of immunothrombosis to this process. We discuss therapeutic approaches to overcome detrimental immunothrombosis in ischemic stroke and how these can be extrapolated to other neurovascular diseases, such as Alzheimer's disease and multiple sclerosis. Finally, we summarize relevant new data on this topic presented during the 2023 International Society on Thrombosis and Haemostasis Congress.
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Affiliation(s)
- Frederik Denorme
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, USA
- Division of Vascular Neurology, Department of Neurology, University of Utah, Salt Lake City, Utah, USA
| | - Abigail Ajanel
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, USA
- Division of Microbiology and Pathology, Department of Pathology, University of Utah, Salt Lake City, Utah, USA
| | - Robert A. Campbell
- University of Utah Molecular Medicine Program, Salt Lake City, Utah, USA
- Division of Microbiology and Pathology, Department of Pathology, University of Utah, Salt Lake City, Utah, USA
- Division of Hematology and Hematologic Malignancies, Department of Internal Medicine, University of Utah, Salt Lake City, Utah, USA
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