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Wang K, Xiao Y, Zhang W, Yang H, Li C, Wang J, Li G. Elucidating key immunological biomarkers and immune microenvironment dynamics in aging-related intracranial aneurysm through integrated multi-omics analysis. ENVIRONMENTAL TOXICOLOGY 2024; 39:2642-2654. [PMID: 38214030 DOI: 10.1002/tox.24117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/17/2023] [Accepted: 12/25/2023] [Indexed: 01/13/2024]
Abstract
BACKGROUND The exact cause of intracranial aneurysms (IA) is still unclear. However, pro-inflammatory factors are known to contribute to IA progression. The specific changes in the immune microenvironment of IAs remain largely unexplored. METHODS This study analyzed single-cell sequencing data from a male mouse model of brain aneurysm, focusing on samples before and after elastase-induced Willis aneurysms. The data helped identify eight distinct cell subpopulations: fibroblasts, macrophages, NK cells, endothelial cells, B cells, granulocytes, and monocytes. The study also involved bulk RNA sequencing of 97 IA samples, utilizing ssGSEA and CIBERSORT algorithms for analysis. Intercellular communication among these cells was inferred to understand the immune dynamics in IA. RESULTS The study found that fibroblasts and macrophages are predominant in various disease states of IA. Notably, the onset of IA was marked by a significant increase in fibroblasts and a decrease in macrophages. There was a marked increase in cellular interactions, especially involving macrophages, at the onset of the disease. Through enrichment analysis, 12 potential immunogenic biomarkers were identified. Of these, Rgs1 emerged as a critical molecule in IA formation, confirmed through secondary validation in a single-cell sequencing dataset. CONCLUSION This comprehensive analysis of immune cell composition and intercellular communication in IA tissues highlights the significant roles of macrophages and the molecule Rgs1. These findings shed light on the physiological and pathological conditions of IA, offering new insights into its immune microenvironment.
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Affiliation(s)
- Kai Wang
- Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Medicine, Tongji University, Shanghai, China
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yangyang Xiao
- Department of Clinical Laboratory, Binzhou Medical University Hospital, Binzhou, China
| | - Wenjia Zhang
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Haiguang Yang
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Chaoqun Li
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jia Wang
- Department of Obstetrics and Gynecology, Shanghai Putuo District Liqun Hospital, Shanghai, China
| | - Guoshu Li
- Department of Respiratory Medicine, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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2
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Lauzier DC, Srienc AI, Vellimana AK, Dacey Jr RG, Zipfel GJ. Peripheral macrophages in the development and progression of structural cerebrovascular pathologies. J Cereb Blood Flow Metab 2024; 44:169-191. [PMID: 38000039 PMCID: PMC10993883 DOI: 10.1177/0271678x231217001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 09/10/2023] [Accepted: 09/15/2023] [Indexed: 11/26/2023]
Abstract
The human cerebrovascular system is responsible for maintaining neural function through oxygenation, nutrient supply, filtration of toxins, and additional specialized tasks. While the cerebrovascular system has resilience imparted by elaborate redundant collateral circulation from supportive tertiary structures, it is not infallible, and is susceptible to developing structural vascular abnormalities. The causes of this class of structural cerebrovascular diseases can be broadly categorized as 1) intrinsic developmental diseases resulting from genetic or other underlying aberrations (arteriovenous malformations and cavernous malformations) or 2) extrinsic acquired diseases that cause compensatory mechanisms to drive vascular remodeling (aneurysms and arteriovenous fistulae). Cerebrovascular diseases of both types pose significant risks to patients, in some cases leading to death or disability. The drivers of such diseases are extensive, yet inflammation is intimately tied to all of their progressions. Central to this inflammatory hypothesis is the role of peripheral macrophages; targeting this critical cell type may lead to diagnostic and therapeutic advancement in this area. Here, we comprehensively review the role that peripheral macrophages play in cerebrovascular pathogenesis, provide a schema through which macrophage behavior can be understood in cerebrovascular pathologies, and describe emerging diagnostic and therapeutic avenues in this area.
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Affiliation(s)
- David C Lauzier
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Anja I Srienc
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ananth K Vellimana
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
| | - Ralph G Dacey Jr
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - Gregory J Zipfel
- Department of Neurological Surgery, Washington University School of Medicine, St. Louis, MO, USA
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
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Frączek MJ, Krzyżewski RM, Kliś KM, Kwinta BM, Popiela TJ, Stachura K. Unruptured intracranial aneurysms: Why should we focus on small aneurysms? A comprehensive update of recent findings. Pol J Radiol 2024; 89:e13-e23. [PMID: 38371893 PMCID: PMC10867953 DOI: 10.5114/pjr.2024.134424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/21/2023] [Indexed: 02/20/2024] Open
Abstract
Intracranial aneurysms (IAs) are a significant public health concern because they have the potential to cause deva-stating consequences, including death and disability. Despite advances in diagnostic and treatment modalities, the outcomes for patients with aneurysmal subarachnoid haemorrhage (aSAH) remain poor, with high rates of rebleeding, vasospasm, and cerebral ischaemia. IAs are a significant risk factor for aSAH, and it is estimated that up to 3% of the general population have IAs. Recent studies using novel imaging modalities have shown that the prevalence of IAs may be much higher, with 6.6% of adults aged 40-84 years having intradural saccular IAs ≥ 2 mm. The risk of rupture for IAs is difficult to predict, and the decision to treat them invasively is based on a balance between the estimated rupture risk and the procedural risks of the treatment. However, the mortality and morbidity rates among patients treated for IAs can be as high as 5%. There is a need for clear guidelines on the treatment of IAs, and this review aims to provide an update on recent findings in this area. To achieve this goal, the authors identified and summarized recent, high-impact studies on IAs. The review focuses on the diagnostic and treatment options for IAs, as well as the risks associated with these interventions. The authors also provide an overview of the natural history of IAs and discuss the challenges and uncertainties in managing these patients.
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Affiliation(s)
- Maciej Jakub Frączek
- Department of Neurosurgery and Neurotraumatology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
- Doctoral School of Medical and Health Sciences, Jagiellonian University Medical College, Krakow, Poland
| | - Roger Marek Krzyżewski
- Department of Neurosurgery and Neurotraumatology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Kornelia Maria Kliś
- Department of Neurosurgery and Neurotraumatology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Borys Maria Kwinta
- Department of Neurosurgery and Neurotraumatology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Tadeusz Jan Popiela
- Chair of Radiology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Krzysztof Stachura
- Department of Neurosurgery and Neurotraumatology, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
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4
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Duan J, Zhao Q, He Z, Tang S, Duan J, Xing W. Current understanding of macrophages in intracranial aneurysm: relevant etiological manifestations, signaling modulation and therapeutic strategies. Front Immunol 2024; 14:1320098. [PMID: 38259443 PMCID: PMC10800944 DOI: 10.3389/fimmu.2023.1320098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/18/2023] [Indexed: 01/24/2024] Open
Abstract
Macrophages activation and inflammatory response play crucial roles in intracranial aneurysm (IA) formation and progression. The outcome of ruptured IA is considerably poor, and the mechanisms that trigger IA progression and rupture remain to be clarified, thereby developing effective therapy to prevent subarachnoid hemorrhage (SAH) become difficult. Recently, climbing evidences have been expanding our understanding of the macrophages relevant IA pathogenesis, such as immune cells population, inflammatory activation, intra-/inter-cellular signaling transductions and drug administration responses. Crosstalk between macrophages disorder, inflammation and cellular signaling transduction aggravates the devastating consequences of IA. Illustrating the pros and cons mechanisms of macrophages in IA progression are expected to achieve more efficient treatment interventions. In this review, we summarized the current advanced knowledge of macrophages activation, infiltration, polarization and inflammatory responses in IA occurrence and development, as well as the most relevant NF-κB, signal transducer and activator of transcription 1 (STAT1) and Toll-Like Receptor 4 (TLR4) regulatory signaling modulation. The understanding of macrophages regulatory mechanisms is important for IA patients' clinical outcomes. Gaining insight into the macrophages regulation potentially contributes to more precise IA interventions and will also greatly facilitate the development of novel medical therapy.
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Affiliation(s)
- Jian Duan
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Qijie Zhao
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zeyuan He
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Shuang Tang
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Jia Duan
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
| | - Wenli Xing
- Department of Cerebrovascular Disease, Suining Central Hospital, Suining, Sichuan, China
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Semin KS, Demyashkin GA, Zakharova NE, Eliava SS, Kheireddin AS, Konovalov AN, Kalaeva DB, Batalov AI, Pronin IN. [Analysis of intracranial saccular aneurysm wall: neuroimaging and histopathological correlates]. ZHURNAL VOPROSY NEIROKHIRURGII IMENI N. N. BURDENKO 2024; 88:52-58. [PMID: 38881016 DOI: 10.17116/neiro20248803152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
BACKGROUND Contrast enhancement of intracranial aneurysm wall during MRI with targeted visualization of vascular wall correlates with previous aneurysm rupture and, according to some data, may be a predictor of further rupture of unruptured aneurysms. OBJECTIVE To analyze possible causes of aneurysm contrast enhancement considering morphological data of aneurysm walls. MATERIAL AND METHODS The study included 44 patients with intracranial aneurysms who underwent preoperative MRI between November 2020 and September 2022. Each aneurysm was assessed regarding contrast enhancement pattern. Microsurgical treatment of aneurysm was accompanied by resection of its wall for subsequent histological and immunohistochemical analysis regarding thrombosis, inflammation and neovascularization. Specimens were subjected to histological and immunochemical analysis. Immunohistochemical analysis was valuable to estimate inflammatory markers CD68 and CD3, as well as neurovascularization marker SD31. RESULTS Aneurysms with contrast-enhanced walls were characterized by higher number of CD3+, CD68+, CD31+ cells and parietal clots. Intensity of contrast enhancement correlated with aneurysm wall abnormalities. CONCLUSION Contrast enhancement of aneurysm wall can characterize various morphological abnormalities.
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Affiliation(s)
- K S Semin
- Burdenko Neurosurgical Center, Moscow, Russia
| | - G A Demyashkin
- Sechenov First Moscow State Medical University, Moscow, Russia
| | | | | | | | | | - D B Kalaeva
- Burdenko Neurosurgical Center, Moscow, Russia
| | - A I Batalov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - I N Pronin
- Burdenko Neurosurgical Center, Moscow, Russia
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Fan H, Tian H, Jin F, Zhang X, Su S, Liu Y, Wen Z, He X, Li X, Duan C. CypD induced ROS output promotes intracranial aneurysm formation and rupture by 8-OHdG/NLRP3/MMP9 pathway. Redox Biol 2023; 67:102887. [PMID: 37717465 PMCID: PMC10514219 DOI: 10.1016/j.redox.2023.102887] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/11/2023] [Accepted: 09/11/2023] [Indexed: 09/19/2023] Open
Abstract
Reactive Oxygen Species (ROS) are widely accepted as a pernicious factor in the progression of intracranial aneurysm (IA), which is eminently related to cell apoptosis and extracellular matrix degradation, but the mechanism remains to be elucidated. Recent evidence has identified that enhancement of Cyclophilin D (CypD) under stress conditions plays a critical role in ROS output, thus accelerating vascular destruction. However, no study has confirmed whether cypD is a detrimental mediator of cell apoptosis and extracellular matrix degradation in the setting of IA development. Our data indicated that endogenous cypD mRNA was significantly upregulated in human IA lesions and mouse IA wall, accompanied by higher level of ROS, MMPs and cell apoptosis. CypD-/- remarkably reversed vascular smooth muscle cells (VSMCs) apoptosis and elastic fiber degradation, and significantly decreased the incidence of aneurysm and ruptured aneurysm, together with the downregulation of ROS, 8-OHdG, NLRP3 and MMP9 in vivo and vitro. Furthermore, we demonstrated that blockade of cypD with CsA inhibited the above processes, thus preventing IA formation and rupture, these effects were highly dependent on ROS output. Mechanistically, we found that cypD directly interacts with ATP5B to promote ROS release in VSMCs, and 8-OHdG directly bind to NLRP3, which interacted with MMP9 to increased MMP9 level and activity in vivo and vitro. Our data expound an unexpected role of cypD in IA pathogenesis and an undescribed 8-OHdG/NLRP3/MMP9 pathway involved in accelerating VSMCs apoptosis and elastic fiber degradation. Repressing ROS output by CypD inhibition may be a promising therapeutic strategy for prevention IA development.
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Affiliation(s)
- Haiyan Fan
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China.
| | - Hao Tian
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Fa Jin
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Xin Zhang
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Shixing Su
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Yanchao Liu
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Zhuohua Wen
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Xuying He
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Xifeng Li
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China.
| | - Chuanzhi Duan
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China; Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, 510280, Guangdong, China.
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Monsour M, Croci DM, Grüter BE, Taussky P, Marbacher S, Agazzi S. Cerebral Aneurysm and Interleukin-6: a Key Player in Aneurysm Generation and Rupture or Just One of the Multiple Factors? Transl Stroke Res 2023; 14:631-639. [PMID: 36042111 DOI: 10.1007/s12975-022-01079-4] [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: 05/16/2022] [Revised: 08/08/2022] [Accepted: 08/25/2022] [Indexed: 10/14/2022]
Abstract
Intracranial aneurysm (IA) rupture is a common cause of subarachnoid hemorrhage (SAH) with high mortality and morbidity. Inflammatory interleukins (IL), such as IL-6, play an important role in the occurrence and rupture of IA causing SAH. With this review we aim to elucidate the specific role of IL-6 in aneurysm formation and rupture in preclinical and clinical studies. IL-6 is a novel cytokine in that it has pro-inflammatory and anti-inflammatory signaling pathways. In preclinical and clinical studies of IA formation, elevated and reduced levels of IL-6 are reported. Poor post-rupture prognosis and increased rupture risk, however, are associated with higher levels of IL-6. By better understanding the relationships between IL-6 and IA formation and rupture, IL-6 may serve as a biomarker in high-risk populations. Furthermore, by better understanding the IL-6 signaling mechanisms in IA formation and rupture, IL-6 may optimize surveillance and treatment strategies. This review examines the association between IL-6 and IA, while also suggesting future research directions.
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Affiliation(s)
- Molly Monsour
- Morsani College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd, Tampa, FL, 33612, USA
| | - Davide Marco Croci
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
| | - Basil E Grüter
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Department of Neurosurgery, Kantonsspital Aarau, c/o NeuroResearch Office, Tellstrasse 1, 5001, Aarau, Switzerland
| | - Philipp Taussky
- Department of Neurosurgery, Clinical Neurosciences Center, University of Utah, 175 N Medical Drive East, Salt Lake City, UT, 84132, USA
| | - Serge Marbacher
- Program for Regenerative Neuroscience, Department for BioMedical Research, University of Bern, Bern, Switzerland
- Department of Neurosurgery, Kantonsspital Aarau, c/o NeuroResearch Office, Tellstrasse 1, 5001, Aarau, Switzerland
| | - Siviero Agazzi
- Department of Neurosurgery and Brain Repair, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
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Hong EP, Cho SM, Rhim JK, Park JJ, Ahn JH, Youn DH, Kim JT, Park CH, Lee Y, Jeon JP. Updated Trans-Ethnic Meta-Analysis of Associations between Inflammation-Related Genes and Intracranial Aneurysm. J Korean Neurosurg Soc 2023; 66:525-535. [PMID: 37068789 PMCID: PMC10483160 DOI: 10.3340/jkns.2023.0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 02/18/2023] [Accepted: 02/21/2023] [Indexed: 04/19/2023] Open
Abstract
OBJECTIVE We performed an expanded multi-ethnic meta-analysis to identify associations between inflammation-related loci with intracranial aneurysm (IA) susceptibility. This meta-analysis possesses increased statistical power as it is based on the most data ever evaluated. METHODS We searched and reviewed relevant literature through electronic search engines up to August 2022. Overall estimates were calculated under the fixed- or random-effect models using pooled odds ratio (OR) and 95% confidence intervals (CIs). Subgroup analyses were performed according to ethnicity. RESULTS Our meta-analysis enrolled 15 studies and involved 3070 patients and 5528 controls including European, Asian, Hispanic, and mixed ethnic populations. Of 17 inflammation-related variants, the rs1800796 locus (interleukin [IL]-6) showed the most significant genome-wide association with IA in East-Asian populations, including 1276 IA patients and 1322 controls (OR, 0.65; 95% CI, 0.56-0.75; p=3.24×10-9) under a fixed-effect model. However, this association was not observed in the European population (OR, 1.09; 95% CI, 0.80-1.47; p=0.5929). Three other variants, rs16944 (IL-1β), rs2195940 (IL-12B), and rs1800629 (tumor necrosis factor-α) showed a statistically nominal association with IA in both the overall, as well as East-Asian populations (0.01 CONCLUSION Our updated meta-analysis with increased statistical power highlights that rs1800796 which maps on the IL-6 gene is associated with IA, and in particular confers a protective effect against occurrence of IA in the East-Asian population.
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Affiliation(s)
- Eun Pyo Hong
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Sung Min Cho
- Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jong Kook Rhim
- Department of Neurosurgery, Jeju National University College of Medicine, Jeju, Korea
| | - Jeong Jin Park
- Department of Neurology, Konkuk University Medical Center, Seoul, Korea
| | - Jun Hyong Ahn
- Department of Neurosurgery, Kangwon National University Hospital, Chuncheon, Korea
| | - Dong Hyuk Youn
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Jong-Tae Kim
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Chan Hum Park
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Younghyurk Lee
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
| | - Jin Pyeong Jeon
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
| | - on behalf of the First Korean Stroke Genetics Association Research (The FirstKSGAR) Study
- Institute of New Frontier Research, Hallym University College of Medicine, Chuncheon, Korea
- Department of Neurosurgery, Yonsei University Wonju College of Medicine, Wonju, Korea
- Department of Neurosurgery, Jeju National University College of Medicine, Jeju, Korea
- Department of Neurology, Konkuk University Medical Center, Seoul, Korea
- Department of Neurosurgery, Kangwon National University Hospital, Chuncheon, Korea
- Department of Neurosurgery, Hallym University College of Medicine, Chuncheon, Korea
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Wang Z, Ma J, Yue H, Zhang Z, Fang F, Wang G, Liu X, Shen Y. Vascular smooth muscle cells in intracranial aneurysms. Microvasc Res 2023:104554. [PMID: 37236346 DOI: 10.1016/j.mvr.2023.104554] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023]
Abstract
Intracranial aneurysm (IA) is a severe cerebrovascular disease characterized by abnormal bulging of cerebral vessels that may rupture and cause a stroke. The expansion of the aneurysm accompanies by the remodeling of vascular matrix. It is well-known that vascular remodeling is a process of synthesis and degradation of extracellular matrix (ECM), which is highly dependent on the phenotype of vascular smooth muscle cells (VSMCs). The phenotypic switching of VSMC is considered to be bidirectional, including the physiological contractile phenotype and alternative synthetic phenotype in response to injury. There is increasing evidence indicating that VSMCs have the ability to switch to various phenotypes, including pro-inflammatory, macrophagic, osteogenic, foamy and mesenchymal phenotypes. Although the mechanisms of VSMC phenotype switching are still being explored, it is becoming clear that phenotype switching of VSMCs plays an essential role in IA formation, progression, and rupture. This review summarized the various phenotypes and functions of VSMCs associated with IA pathology. The possible influencing factors and potential molecular mechanisms of the VSMC phenotype switching were further discussed. Understanding how phenotype switching of VSMC contributed to the pathogenesis of unruptured IAs can bring new preventative and therapeutic strategies for IA.
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Affiliation(s)
- Zhenye Wang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Jia Ma
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Hongyan Yue
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Zhewei Zhang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - Fei Fang
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Guixue Wang
- Jinfeng Laboratory, Chongqing 401329, China; Key Laboratory of Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, College of Bioengineering, Chongqing University, Chongqing 400030, China
| | - Xiaoheng Liu
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China; Jinfeng Laboratory, Chongqing 401329, China
| | - Yang Shen
- Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China; Jinfeng Laboratory, Chongqing 401329, China.
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Li S, Zhang Q, Huang Z, Chen F. Integrative analysis of multi-omics data to identify three immune-related genes in the formation and progression of intracranial aneurysms. Inflamm Res 2023; 72:1001-1019. [PMID: 37014439 DOI: 10.1007/s00011-023-01725-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/01/2023] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
OBJECTIVE AND DESIGN The prevalence of intracranial aneurysms (IAs) has increased globally. We performed bioinformatics analysis to identify key biomarkers associated with IA formation. METHODS AND RESULTS We conducted a comprehensive analysis combined with multi-omics data and methods to identify immune-related genes (IRGs) and immunocytes involved in IAs. Functional enrichment analyses showed enhanced immune responses and suppressed organizations of extracellular matrix (ECM) during aneurysm progression. xCell analyses showed that the abundance of B cells, macrophages, mast cells, and monocytes significantly increased from levels in control to unruptured aneurysms and to ruptured aneurysms. Of 21 IRGs identified by overlapping, a three-gene (CXCR4, S100B, and OSM) model was constructed through LASSO logistic regression. The diagnostic ability of the three biomarkers in discriminating aneurysms from the control samples demonstrated a favorable diagnostic value. Among the three genes, OSM and CXCR4 were up-regulated and hypomethylated in IAs, while S100B was down-regulated and hypermethylated. The expression of the three IRGs was further validated by qRT-PCR and immunohistochemistry and mouse IA model using scRNA-seq analysis. CONCLUSION The present study demonstrated heightened immune response and suppressed ECM organization in aneurysm formation and rupture. The three-gene immune-related signature (CCR4, S100B, and OSM) model may facilitate IA diagnosis and prevention.
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Affiliation(s)
- Shifu Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China
| | - Qian Zhang
- Department of Neurosurgery, Xiangya Hospital, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China
| | - Zheng Huang
- Department of Neurosurgery, Xiangya Hospital, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China
| | - Fenghua Chen
- Department of Neurosurgery, Xiangya Hospital, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Central South University, 87 Xiangya Street, Changsha, 410008, Hunan, China.
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Association of elevated neutrophil-to-lymphocyte ratio with increased intracranial aneurysm stability scores and aneurysm growth. J Stroke Cerebrovasc Dis 2023; 32:107052. [PMID: 36780759 DOI: 10.1016/j.jstrokecerebrovasdis.2023.107052] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 02/01/2023] [Accepted: 02/03/2023] [Indexed: 02/13/2023] Open
Abstract
BACKGROUND AND PURPOSE Inflammation involves in the progression of intracranial aneurysms (IAs). However, whether the neutrophil-to-lymphocyte ratio (NLR) as an inflammatory marker links to IAs stability is unidentified. This study was performed to assess the association of the NLR with IAs stability. METHODS We retrospectively reviewed the medical records of patients diagnosed with unruptured IAs from January 2014 to June 2018. According to the quartiles of the NLR, patients with unruptured IAs were categorized into four groups. We evaluated the association between the NLR and IAs stability scores and IAs growth. Multiple logistic regression models were used in the analysis. RESULTS A significant dose-response association was found between the NLR with IAs stability scores and IAs growth. After adjustment for potential confounders, an elevated NLR (fourth quartile) was associated with increased PHASES score (>5) (adjusted odds ratio [OR], 2.007; 95% confidence interval [CI], 1.361-2.960; p<0.001 [p for trend <0.001]), increased ELAPSS score (>15) (adjusted OR, 1.581; 95% CI, 1.074-2.328; p=0.020 [p for trend =0.001]), increased JAPAN 3-year rupture risk score (>5) (adjusted OR, 1.512; 95% CI, 1.033-2.215; p=0.034 [p for trend <0.001]), and IAs growth (adjusted OR, 16.759; 95% CI, 3.022-92.928; p=0.001 [p for trend <0.001]). CONCLUSION An elevated NLR was associated with increased IAs stability scores and IAs growth. The association between NLR and IAs stability need further investigate.
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Poppenberg KE, Chien A, Santo BA, Baig AA, Monteiro A, Dmytriw AA, Burkhardt JK, Mokin M, Snyder KV, Siddiqui AH, Tutino VM. RNA Expression Signatures of Intracranial Aneurysm Growth Trajectory Identified in Circulating Whole Blood. J Pers Med 2023; 13:jpm13020266. [PMID: 36836499 PMCID: PMC9967913 DOI: 10.3390/jpm13020266] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 01/24/2023] [Accepted: 01/27/2023] [Indexed: 02/04/2023] Open
Abstract
After detection, identifying which intracranial aneurysms (IAs) will rupture is imperative. We hypothesized that RNA expression in circulating blood reflects IA growth rate as a surrogate of instability and rupture risk. To this end, we performed RNA sequencing on 66 blood samples from IA patients, for which we also calculated the predicted aneurysm trajectory (PAT), a metric quantifying an IA's future growth rate. We dichotomized dataset using the median PAT score into IAs that were either more stable and more likely to grow quickly. The dataset was then randomly divided into training (n = 46) and testing cohorts (n = 20). In training, differentially expressed protein-coding genes were identified as those with expression (TPM > 0.5) in at least 50% of the samples, a q-value < 0.05 (based on modified F-statistics with Benjamini-Hochberg correction), and an absolute fold-change ≥ 1.5. Ingenuity Pathway Analysis was used to construct networks of gene associations and to perform ontology term enrichment analysis. The MATLAB Classification Learner was then employed to assess modeling capability of the differentially expressed genes, using a 5-fold cross validation in training. Finally, the model was applied to the withheld, independent testing cohort (n = 20) to assess its predictive ability. In all, we examined transcriptomes of 66 IA patients, of which 33 IAs were "growing" (PAT ≥ 4.6) and 33 were more "stable". After dividing dataset into training and testing, we identified 39 genes in training as differentially expressed (11 with decreased expression in "growing" and 28 with increased expression). Model genes largely reflected organismal injury and abnormalities and cell to cell signaling and interaction. Preliminary modeling using a subspace discriminant ensemble model achieved a training AUC of 0.85 and a testing AUC of 0.86. In conclusion, transcriptomic expression in circulating blood indeed can distinguish "growing" and "stable" IA cases. The predictive model constructed from these differentially expressed genes could be used to assess IA stability and rupture potential.
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Affiliation(s)
- Kerry E. Poppenberg
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Neurosurgery, University at Buffalo, Buffalo, NY 14203, USA
| | - Aichi Chien
- Department of Radiology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Briana A. Santo
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Pathology and Anatomical Sciences, University at Buffalo, Buffalo, NY 14203, USA
| | - Ammad A. Baig
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Neurosurgery, University at Buffalo, Buffalo, NY 14203, USA
| | - Andre Monteiro
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Neurosurgery, University at Buffalo, Buffalo, NY 14203, USA
| | - Adam A. Dmytriw
- Neuroendovascular Program, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Maxim Mokin
- Department of Neurosurgery, University of South Florida, Tampa, FL 33620, USA
| | - Kenneth V. Snyder
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Neurosurgery, University at Buffalo, Buffalo, NY 14203, USA
| | - Adnan H. Siddiqui
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Neurosurgery, University at Buffalo, Buffalo, NY 14203, USA
| | - Vincent M. Tutino
- Canon Stroke and Vascular Research Center, University at Buffalo, Buffalo, NY 14203, USA
- Department of Neurosurgery, University at Buffalo, Buffalo, NY 14203, USA
- Department of Pathology and Anatomical Sciences, University at Buffalo, Buffalo, NY 14203, USA
- Correspondence: ; Tel.: +1-716-829-5400
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13
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Ashida S, Yamawaki-Ogata A, Tokoro M, Mutsuga M, Usui A, Narita Y. Administration of anti-inflammatory M2 macrophages suppresses progression of angiotensin II-induced aortic aneurysm in mice. Sci Rep 2023; 13:1380. [PMID: 36697439 PMCID: PMC9877022 DOI: 10.1038/s41598-023-27412-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 01/02/2023] [Indexed: 01/27/2023] Open
Abstract
Aortic aneurysm (AA) is a vascular disorder characterized pathologically by inflammatory cell invasion and extracellular matrix (ECM) degradation. It is known that regulation of the balance between pro-inflammatory M1 macrophages (M1Ms) and anti-inflammatory M2 macrophages (M2Ms) plays a pivotal role in AA stabilization. We investigated the effects of M2M administration in an apolipoprotein E-deficient (apoE-/-) mouse model in which AA was induced by angiotensin II (ATII) infusion. Mice received intraperitoneal administration of 1 million M2Ms 4 weeks after ATII infusion. Compared with a control group that was administered saline, the M2M group exhibited reduced AA expansion; decreased expression levels of interleukin (IL)-1β, IL-6, tumor necrosis factor-α (TNF-α), and monocyte chemoattractant protein-1 (MCP-1); and a lower M1M/M2M ratio. Moreover, the M2M group exhibited upregulation of anti-inflammatory factors, including IL-4 and IL-10. PKH26-labeled M2Ms accounted for 6.5% of cells in the aneurysmal site and co-expressed CD206. Taken together, intraperitoneal administration of M2Ms inhibited AA expansion by reducing the inflammatory reaction via regulating the M1M/M2M ratio. This study shows that M2M administration might be useful for the treatment of AA.
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Affiliation(s)
- Shinichi Ashida
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Aika Yamawaki-Ogata
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Masayoshi Tokoro
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Masato Mutsuga
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Akihiko Usui
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yuji Narita
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan.
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14
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Sun K, Cao Y, Chen Y, Peng Q, Xie Y, Luo Y, Tian H, Li X, Zeng M, Zhang X, Li X, Su S, He X, Duan C, Sun H. Altered gut microbiomes are associated with the symptomatic status of unruptured intracranial aneurysms. Front Neurosci 2022; 16:1056785. [PMID: 36620449 PMCID: PMC9814123 DOI: 10.3389/fnins.2022.1056785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 11/21/2022] [Indexed: 12/24/2022] Open
Abstract
Background Gut microbiome has recently been recognized as an important environmental factor affecting the occurrence and development of unruptured intracranial aneurysms (UIA). This study aimed to investigate the relationship between gut microbiome and symptomatic UIA, which is a predictor of instability and a high propensity to rupture. Methods A total of 132 patients including 86 asymptomatic UIA and 46 symptomatic UIA were recruited in the study. The composition of gut bacterial communities was determined by 16S ribosomal RNA gene sequencing. In addition, Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) was used to predict the functional composition of the gut microbiome. Results There is no difference in the fecal microbial alpha diversity between symptomatic and asymptomatic UIA, but gut microbiome composition changed significantly. At the order level, the relative abundance of Clostridiales was significantly enriched in the symptomatic compared with asymptomatic UIA (p = 0.043). In addition, similar alterations were observed at the family levels of Ruminococcaceae. The Linear discriminant analysis (LEfSe) revealed Fournierella, Ruthenibacterium, and Anaerotruncus as discriminative features in the symptomatic group. Notably, functional differences in gut microbiome of patients with symptomatic UIA included decreased propionate metabolism pathway and enrichment of peptidoglycan biosynthesis pathways. Conclusion The present study comprehensively characterizes gut microbiome in a large cohort of different risk statuses of UIA patients and demonstrates the potential biological function of gut microbiome involved in the development of UIA. It may provide additional benefits in guiding UIA management and improving patient outcomes.
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Affiliation(s)
- Kaijian Sun
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Ying Cao
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Yiting Chen
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Qing Peng
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Yugu Xie
- Department of Laboratory Medicine, Clinical Biobank Centre, Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Yunhao Luo
- Department of Laboratory Medicine, Clinical Biobank Centre, Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Hao Tian
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Xin Li
- Department of Laboratory Medicine, Clinical Biobank Centre, Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Meiqin Zeng
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Xin Zhang
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Xifeng Li
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Shixing Su
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Xuying He
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China
| | - Chuanzhi Duan
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China,*Correspondence: Chuanzhi Duan,
| | - Haitao Sun
- The National Key Clinical Specialty, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Cerebrovascular Surgery, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Neurosurgery Center, Zhujiang Hospital, The Neurosurgery Institute of Guangdong Province, Southern Medical University, Guangzhou, Guangdong, China,Department of Laboratory Medicine, Clinical Biobank Centre, Microbiome Medicine Center, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China,Key Laboratory of Mental Health of the Ministry of Education, Guangdong–Hong Kong–Macao Greater Bay Area Centre for Brain Science and Brain-Inspired Intelligence, Southern Medical University, Guangzhou, Guangdong, China,Haitao Sun,
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15
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Chen J, Liu J, Liu X, Zeng C, Chen Z, Li S, Zhang Q. Animal model contributes to the development of intracranial aneurysm: A bibliometric analysis. Front Vet Sci 2022; 9:1027453. [DOI: 10.3389/fvets.2022.1027453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/27/2022] [Indexed: 11/21/2022] Open
Abstract
IntroductionStudies on intracranial aneurysms (IAs) using animal models have evolved for decades. This study aimed to analyze major contributors and trends in IA-related animal research using bibliometric analysis.MethodsIA-related animal studies were retrieved from the Web of Science database. Microsoft Excel 2010, GraphPad Prism 6, VOSviewer, and CiteSpace were used to collect and analyze the characteristics of this field.ResultsA total of 273 publications were retrieved. All publications were published between 1976 and 2021, and the peak publication year is 2019. Rat model were used in most of the publications, followed by mice and rabbits. Japan (35.5%), the United States (30.0%), and China (20.1%) were the top three most prolific countries. Although China ranks third in the number of publications, it still lacks high-quality articles and influential institutions. Stroke was the most prolific journal that accepted publications related to IA research using animal models. Circulation has the highest impact factor with IA-related animal studies. Hashimoto N contributed the largest number of articles. Meng hui journal published the first and second highest cited publications. The keywords “subarachnoid hemorrhage,” “macrophage,” “rupture,” “mice,” “elastase,” “gene,” “protein,” “proliferation,” and “risk factors” might be a new trend for studying IA-related animal research.ConclusionsJapan and the Unites States contributed the most to IA–related animal studies, in terms of both researchers and institutions. Although China ranks third in terms of the number of publications, it should strengthen the quality of its publications. Researchers should pay attention to the latest progress of Stroke, Journal of Neurosurgery, Neurosurgery, and Circulation for their high-quality IA-related animal studies. Using animal IA models, especially mice, to investigate the molecular mechanisms of IA may be the frontier topic now and in future.
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Kamińska J, Maciejczyk M, Ćwiklińska A, Matowicka-Karna J, Koper-Lenkiewicz OM. Pro-Inflammatory and Anti-Inflammatory Cytokines Levels are Significantly Altered in Cerebrospinal Fluid of Unruptured Intracranial Aneurysm (UIA) Patients. J Inflamm Res 2022; 15:6245-6261. [PMID: 36386592 PMCID: PMC9664915 DOI: 10.2147/jir.s380524] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 10/25/2022] [Indexed: 11/12/2022] Open
Abstract
Introduction Identifying all the relevant “players” in the formation and development of brain aneurysms may help understand the mechanisms responsible for the formation of an aneurysm, as well as in the search for non-invasive targets for aneurysm pharmacotherapy. Aim The evaluation of the concentration of pro-inflammatory and anti-inflammatory cytokines in cerebrospinal fluid (CSF) and serum of patients with unruptured intracranial aneurysms (UIA) in comparison to individuals without vascular lesions in the brain. Methods The concentration of 27 proteins in the CSF and serum of UIA patients (N = 40) and individuals without vascular lesions in the brain (N = 15) was evaluated using a multiplex ELISA kit (Bio-Plex Pro Human Cytokine 27-Plex Panel). Results In the CSF 13 out of 27 proteins evaluated presented a concentration 1.36-fold or greater in UIA patients in comparison to the control group. Significantly higher were IL-1β, IL-1ra, IL-2, IL-4, IL-5, IL-7, IL-8, IL-12, IL-13, TNF-α, INF-γ, MCP-1, and VEGF. In the serum none of the proteins evaluated significantly differ between UIA patients and the control group. The correlation coefficient analysis showed that CSF IL-1β, IL-8, and TNF-α positively, while IL-13 negatively correlated with the size of aneurysms. CSF IL-6 and MCP-1 concentrations positively correlated with the number of aneurysms. Conclusion In patients with UIA, pro-inflammatory and anti-inflammatory mechanisms are activated simultaneously, because the concentration of promoting and suppressing inflammatory response proteins was significantly higher in CSF of UIA patients compared to the control group. The preventive therapy of brain aneurysm development should be focused on IL-1β, IL-6, IL-8, MCP-1, and TNF-α, the concentration of which in CSF positively correlated with the size and number of aneurysms.
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Affiliation(s)
- Joanna Kamińska
- Department of Clinical Laboratory Diagnostics, Medical University of Białystok, Białystok, Poland
- Correspondence: Joanna Kamińska, Department of Clinical Laboratory Diagnostics, Medical University of Białystok, 15A Jerzego Waszyngtona St, Białystok, 15-269S, Poland, Tel/Fax + 48 85 7468584, Email
| | - Mateusz Maciejczyk
- Department of Hygiene, Epidemiology, and Ergonomics, Medical University of Białystok, Białystok, Poland
| | | | - Joanna Matowicka-Karna
- Department of Clinical Laboratory Diagnostics, Medical University of Białystok, Białystok, Poland
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Chitwood CA, Shih ED, Amili O, Larson AS, Ogle BM, Alford PW, Grande AW. Biology and Hemodynamics of Aneurysm Rupture. Neurosurg Clin N Am 2022; 33:431-441. [DOI: 10.1016/j.nec.2022.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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18
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Martinez AN, Tortelote GG, Pascale CL, McCormack IG, Nordham KD, Suder NJ, Couldwell MW, Dumont AS. Single-Cell Transcriptome Analysis of the Circle of Willis in a Mouse Cerebral Aneurysm Model. Stroke 2022; 53:2647-2657. [PMID: 35770669 DOI: 10.1161/strokeaha.122.038776] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND The circle of Willis (CoW) is the most common location for aneurysms to form in humans. Although the major cell types of the intracranial vasculature are well known, the heterogeneity and relative contributions of the different cells in healthy and aneurysmal vessels have not been well characterized. Here, we present the first comprehensive analysis of the lineage heterogeneity and altered transcriptomic profiles of vascular cells from healthy and aneurysmal mouse CoW using single-cell RNA sequencing. METHODS Cerebral aneurysms (CAs) were induced in adult male mice using an elastase model. Single-cell RNA sequencing was then performed on CoW samples obtained from animals that either had aneurysms form or rupture 14 days post-induction. Sham-operated animals served as controls. RESULTS Unbiased clustering analysis of the transcriptional profiles from >3900 CoW cells identified 19 clusters representing ten cell lineages: vascular smooth muscle cells, endothelial cells fibroblasts, pericytes and immune cells (macrophages, T and B lymphocytes, dendritic cells, mast cells, and neutrophils). The 5 vascular smooth muscle cell subpopulations had distinct transcriptional profiles and were classified as proliferative, stress-induced senescent, quiescent, inflammatory-like, or hyperproliferative. The transcriptional signature of the metabolic pathways of ATP generation was found to be downregulated in 2 major vascular smooth muscle cell clusters when CA was induced. Aneurysm induction led to significant expansion of the total macrophage population, and this expansion was further increased with rupture. Both inflammatory and resolution-phase macrophages were identified, and a massive spike of neutrophils was seen with CA rupture. Additionally, the neutrophil-to-lymphocyte ratio (NLR), which originated from CA induction mirrored what happens in humans. CONCLUSIONS Our data identify CA disease-relevant transcriptional signatures of vascular cells in the CoW and is searchable via a web-based R/shiny interface.
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Affiliation(s)
- Alejandra N Martinez
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
| | - Giovane G Tortelote
- Department of Pediatrics and The Tulane Hypertension & Renal Center of Excellence, Tulane University School of Medicine, New Orleans, LA. (G.G.T.)
| | - Crissey L Pascale
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
| | - Isabella G McCormack
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
| | - Kristen D Nordham
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
| | - Natalie J Suder
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
| | - Mitchell W Couldwell
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
| | - Aaron S Dumont
- Department of Neurosurgery, Tulane Center for Clinical Neurosciences, Tulane University School of Medicine, New Orleans, LA. (A.N.M., C.L.P., I.G.M., K.D.N., N.J.S., M.W.C., A.S.D.)
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19
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Ge P, Liu C, Chan L, Pang Y, Li H, Zhang Q, Ye X, Wang J, Wang R, Zhang Y, Wang W, Zhang D, Zhao J. High-Dimensional Immune Profiling by Mass Cytometry Revealed the Circulating Immune Cell Landscape in Patients With Intracranial Aneurysm. Front Immunol 2022; 13:922000. [PMID: 35833148 PMCID: PMC9271834 DOI: 10.3389/fimmu.2022.922000] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/01/2022] [Indexed: 11/30/2022] Open
Abstract
Background Increasing evidence supports a critical role of chronic inflammation in intracranial aneurysm (IA). Understanding how the immunological alterations in IA provides opportunities for targeted treatment. However, there is a lack of comprehensive and detailed characterization of the changes in circulating immune cells in IA. Objective To perform a comprehensive and detailed characterization of the changes in circulating immune cells in patients with IA. Methods Peripheral blood mononuclear cell samples from IA patients (n = 26) and age-and sex-matched healthy controls (HCs, n = 20) were analyzed using high dimensional mass cytometry, and the frequency and phenotype of immune cell subtypes were assessed. Results We identified 28 cell clusters and found that the immune signature of IA consists of cluster changes. IA patients exhibited dysfunction of immunity, with dysregulation of CD4+ T-cell clusters, increased B cells and monocytes, and decreased CD8+ T cells, DNT cells, and DPT cells. Moreover, compared with findings in HC, IA was associated with enhanced lymphocyte and monocyte immune activation, with a higher expression of HLA-DR, CXCR3, and CX3CR1. In addition, the expression of TLR4, p-STAT3, and the exhaustion marker PD1 was increased in T cells, B cells, and NK cells in IA patients. Conclusions Our data provide an overview of the circulating immune cell landscape of IA patients, and reveal that the dysfunction of circulating immunity may play a potential role in the development of IA.
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Affiliation(s)
- Peicong Ge
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Chenglong Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Liujia Chan
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, China
| | - Yuheng Pang
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, China
| | - Hao Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Qian Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Xun Ye
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Jia Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Rong Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Yan Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
| | - Wenjing Wang
- Beijing Institute of Hepatology, Beijing YouAn Hospital, Capital Medical University, Beijing, China
- *Correspondence: Wenjing Wang, ; Dong Zhang, ; Jizong Zhao,
| | - Dong Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
- Department of Neurosurgery, Beijing Hospital, Beijing, China
- *Correspondence: Wenjing Wang, ; Dong Zhang, ; Jizong Zhao,
| | - Jizong Zhao
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- China National Clinical Research Center for Neurological Diseases, Beijing, China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, China
- Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, Beijing, China
- Beijing Translational Engineering Center for 3D Printer in Clinical Neuroscience, Beijing, China
- Savaid Medical School, University of Chinese Academy of Sciences, Beijing, China
- *Correspondence: Wenjing Wang, ; Dong Zhang, ; Jizong Zhao,
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20
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Moschetti G, Vasco C, Clemente F, Galeota E, Carbonara M, Pluderi M, Locatelli M, Stocchetti N, Abrignani S, Zanier ER, Ortolano F, Zoerle T, Geginat J. Deep Phenotyping of T-Cells Derived From the Aneurysm Wall in a Pediatric Case of Subarachnoid Hemorrhage. Front Immunol 2022; 13:866558. [PMID: 35711453 PMCID: PMC9197186 DOI: 10.3389/fimmu.2022.866558] [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: 01/31/2022] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Intracranial aneurysms (IAs) are very rare in children, and the characteristics of the T-cells in the IA wall are largely unknown. A comatose 7-years-old child was admitted to our center because of a subarachnoid hemorrhage due to a ruptured giant aneurysm of the right middle cerebral artery. Two days after the aneurysm clipping the patient was fully awake with left hemiparesis. T-cells from the IA wall and from peripheral blood of this patient were analyzed by multi-dimensional flow cytometry. Unbiased analysis, based on the use of FlowSOM clustering and dimensionality reduction technique UMAP, indicated that there was virtually no overlap between circulating and tissue-infiltrating T-cells. Thus, naïve T-cells and canonical memory T-cells were largely restricted to peripheral blood, while CD4-CD8-T-cells were strongly enriched in the IA wall. The unique CD4+, CD8+ and CD4-CD8-T-cell clusters from the IA wall expressed high levels of CCR5, Granzyme B and CD69, displaying thus characteristics of cytotoxic and tissue-resident effector cells. Low Ki67 expression indicated that they were nevertheless in a resting state. Among regulatory T-cell subsets, Eomes+Tr1-like cells were strongly enriched in the IA wall. Finally, analysis of cytokine producing capacities unveiled that the IA wall contained poly-functional T-cells, which expressed predominantly IFN-γ, TNF and IL-2. CD4+T-cells co-expressed also CD40L, and produced some IL-17, GM-CSF and IL-10. This report provides to our knowledge the first detailed characterization of the human T-cell compartment in the IA wall.
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Affiliation(s)
| | - Chiara Vasco
- National Institute for Molecular Genetics (INGM), Milan, Italy
| | | | - Eugenia Galeota
- National Institute for Molecular Genetics (INGM), Milan, Italy
| | - Marco Carbonara
- Neuroscience Intensive Care Unit, Department of Anesthesia and Critical Care, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Mauro Pluderi
- Department of Neurosurgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marco Locatelli
- Department of Neurosurgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Nino Stocchetti
- Neuroscience Intensive Care Unit, Department of Anesthesia and Critical Care, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Sergio Abrignani
- National Institute for Molecular Genetics (INGM), Milan, Italy.,Department of Clinical Sciences and Community Health University Milan, Milan, Italy
| | - Elisa R Zanier
- Laboratory of Acute Brain Injury and Therapeutic Strategies, Department of Neuroscience, Mario Negri Institute for Pharmacological Research IRCCS, Milan, Italy
| | - Fabrizio Ortolano
- Neuroscience Intensive Care Unit, Department of Anesthesia and Critical Care, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Tommaso Zoerle
- Neuroscience Intensive Care Unit, Department of Anesthesia and Critical Care, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Jens Geginat
- National Institute for Molecular Genetics (INGM), Milan, Italy.,Department of Clinical Sciences and Community Health University Milan, Milan, Italy
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21
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Sunderland K, Jiang J, Zhao F. Disturbed flow's impact on cellular changes indicative of vascular aneurysm initiation, expansion, and rupture: A pathological and methodological review. J Cell Physiol 2022; 237:278-300. [PMID: 34486114 PMCID: PMC8810685 DOI: 10.1002/jcp.30569] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 01/03/2023]
Abstract
Aneurysms are malformations within the arterial vasculature brought on by the structural breakdown of the microarchitecture of the vessel wall, with aneurysms posing serious health risks in the event of their rupture. Blood flow within vessels is generally laminar with high, unidirectional wall shear stressors that modulate vascular endothelial cell functionality and regulate vascular smooth muscle cells. However, altered vascular geometry induced by bifurcations, significant curvature, stenosis, or clinical interventions can alter the flow, generating low stressor disturbed flow patterns. Disturbed flow is associated with altered cellular morphology, upregulated expression of proteins modulating inflammation, decreased regulation of vascular permeability, degraded extracellular matrix, and heightened cellular apoptosis. The understanding of the effects disturbed flow has on the cellular cascades which initiate aneurysms and promote their subsequent growth can further elucidate the nature of this complex pathology. This review summarizes the current knowledge about the disturbed flow and its relation to aneurysm pathology, the methods used to investigate these relations, as well as how such knowledge has impacted clinical treatment methodologies. This information can contribute to the understanding of the development, growth, and rupture of aneurysms and help develop novel research and aneurysmal treatment techniques.
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Affiliation(s)
- Kevin Sunderland
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931
| | - Jingfeng Jiang
- Department of Biomedical Engineering, Michigan Technological University, Houghton, MI 49931,Corresponding Authors: Feng Zhao, 101 Bizzell Street, College Station, TX 77843-312, Tel : 979-458-1239, , Jingfeng Jiang, 1400 Townsend Dr., Houghton, MI 49931, Tel: 906-487-1943
| | - Feng Zhao
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843,Corresponding Authors: Feng Zhao, 101 Bizzell Street, College Station, TX 77843-312, Tel : 979-458-1239, , Jingfeng Jiang, 1400 Townsend Dr., Houghton, MI 49931, Tel: 906-487-1943
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22
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RNA Sequencing Data from Human Intracranial Aneurysm Tissue Reveals a Complex Inflammatory Environment Associated with Rupture. Mol Diagn Ther 2021; 25:775-790. [PMID: 34403136 DOI: 10.1007/s40291-021-00552-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Intracranial aneurysm (IA) rupture leads to deadly subarachnoid hemorrhages. However, the mechanisms leading to rupture remain poorly understood. Altered gene expression within IA tissue is linked to the pathobiology of aneurysm development and progression. Here, we analyzed expression patterns of control tissue samples and compared them to those of unruptured and ruptured IA tissue samples using data from the Gene Expression Omnibus (GEO). METHODS FASTQ files for 21 ruptured IAs, 21 unruptured IAs, and 16 control tissue samples were accessed from the GEO database. DESeq2 was used for differential expression analysis in three comparisons: unruptured IA versus control, ruptured IA versus control, and ruptured versus unruptured IA. Genes that were differentially expressed in multiple comparisons were evaluated to find those progressively increasing/decreasing from control to unruptured to ruptured. Significance was tested by either analysis of variance/Gabriel or Brown-Forsythe/Games Howell (p < 0.05 was considered significant). We used additional RNA sequencing and proteomics datasets to evaluate if our differentially expressed genes (DEGs) were present in other studies. Bioinformatics analyses were performed with g:Profiler and Ingenuity Pathway Analysis. RESULTS In total, we identified 1768 DEGs, of which 318 were found in multiple comparisons. Unruptured versus control reflected vascular remodeling processes, while ruptured versus control reflected inflammatory responses and cell activation/signaling. When comparing ruptured to unruptured IAs, we found massive activation of inflammation, inflammatory responses, and leukocyte responses. Of the 318 genes in multiple comparisons, 127 were found to be significant in the multi-cohort correlation analysis. Those that progressively increased (70 genes) were associated with immune system processes, while those that progressively decreased (38 genes) did not return any gene ontology terms. Many of our DEGs were also found in the other IA tissue sequencing studies. CONCLUSIONS We found unruptured IAs relate more to remodeling processes, while ruptured IAs reflect more inflammatory and immune responses.
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23
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Scullen T, Mathkour M, Teja N, Dumont AS. Commentary: Aneurysm Wall Enhancement Is Associated With Decreased Intrasaccular IL-10 and Morphological Features of Instability. Neurosurgery 2021; 89:E215-E217. [PMID: 34318890 DOI: 10.1093/neuros/nyab279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 06/12/2021] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tyler Scullen
- Department of Neurological Surgery, Tulane Medical Center, New Orleans, Louisiana, USA
| | - Mansour Mathkour
- Department of Neurological Surgery, Tulane Medical Center, New Orleans, Louisiana, USA
| | - Nikhil Teja
- Department of Psychiatry, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, USA
| | - Aaron S Dumont
- Department of Neurological Surgery, Tulane Medical Center, New Orleans, Louisiana, USA
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24
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Yokosuka K, Rutledge C, Kamio Y, Kuwabara A, Sato H, Rahmani R, Purcell J, Eguchi S, Baranoski JF, Margaryan T, Tovmasyan A, Ai J, Lawton MT, Hashimoto T. Roles of Phytoestrogen in the Pathophysiology of Intracranial Aneurysm. Stroke 2021; 52:2661-2670. [PMID: 34157864 DOI: 10.1161/strokeaha.120.032042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Kimihiko Yokosuka
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Caleb Rutledge
- Department of Neurological Surgery, University of California, San Francisco (C.R.)
| | - Yoshinobu Kamio
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Atsushi Kuwabara
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Hiroki Sato
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Redi Rahmani
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
- Department of Neurosurgery, University of Rochester Medical Center, NY (R.R.)
| | - James Purcell
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine at Temple University, Philadelphia, PA (S.E.)
| | - Jacob F Baranoski
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Tigran Margaryan
- Division of Neurobiology, Ivy Brain Tumor Center (T.M., A.T.), Barrow Neurological Institute, Phoenix, AZ
| | - Artak Tovmasyan
- Division of Neurobiology, Ivy Brain Tumor Center (T.M., A.T.), Barrow Neurological Institute, Phoenix, AZ
| | - Jinglu Ai
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
| | - Michael T Lawton
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
- Department of Neurosurgery (M.T.L.), Barrow Neurological Institute, Phoenix, AZ
| | - Tomoki Hashimoto
- Barrow Aneurysm and AVM Research Center (K.Y., Y.K., A.K., H.S., R.R., J.P., J.F.B., J.A., M.T.L., T.H.), Barrow Neurological Institute, Phoenix, AZ
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25
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Interleukin 6 and Aneurysmal Subarachnoid Hemorrhage. A Narrative Review. Int J Mol Sci 2021; 22:ijms22084133. [PMID: 33923626 PMCID: PMC8073154 DOI: 10.3390/ijms22084133] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/09/2021] [Accepted: 04/12/2021] [Indexed: 02/07/2023] Open
Abstract
Interleukin 6 (IL-6) is a prominent proinflammatory cytokine. Neuroinflammation in general, and IL-6 signaling in particular, appear to play a major role in the pathobiology and pathophysiology of aneurysm formation and aneurysmal subarachnoid hemorrhage (SAH). Most importantly, elevated IL-6 CSF (rather than serum) levels appear to correlate with delayed cerebral ischemia (DCI, “vasospasm”) and secondary (“vasospastic”) infarctions. IL-6 CSF levels may also reflect other forms of injury to the brain following SAH, i.e., early brain damage and septic complications of SAH and aneurysm treatment. This would explain why many researchers have found an association between IL-6 levels and patient outcomes. These findings clearly suggest CSF IL-6 as a candidate biomarker in SAH patients. However, at this point, discrepant findings in variable study settings, as well as timing and other issues, e.g., defining proper clinical endpoints (i.e., secondary clinical deterioration vs. angiographic vasospasm vs. secondary vasospastic infarct) do not allow for its routine use. It is also tempting to speculate about potential therapeutic measures targeting elevated IL-6 CSF levels and neuroinflammation in SAH patients. Corticosteroids and anti-platelet drugs are indeed used in many SAH cases (not necessarily with the intention to interfere with detrimental inflammatory signaling), however, no convincing benefit has been demonstrated yet. The lack of a robust clinical perspective against the background of a relatively large body of data linking IL-6 and neuroinflammation with the pathophysiology of SAH is somewhat disappointing. One underlying reason might be that most relevant studies only report correlative data. The specific molecular pathways behind elevated IL-6 levels in SAH patients and their various interactions still remain to be delineated. We are optimistic that future research in this field will result in a better understanding of the role of neuroinflammation in the pathophysiology of SAH, which in turn, will translate into the identification of suitable biomarkers and even potential therapeutic targets.
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26
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Jiang Z, Huang J, You L, Zhang J, Li B. Pharmacological inhibition of STAT3 by BP-1-102 inhibits intracranial aneurysm formation and rupture in mice through modulating inflammatory response. Pharmacol Res Perspect 2021; 9:e00704. [PMID: 33474811 PMCID: PMC7817916 DOI: 10.1002/prp2.704] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 11/24/2020] [Accepted: 11/26/2020] [Indexed: 12/28/2022] Open
Abstract
As an inhibitor of STAT3, BP-1-102 can regulate the inflammation response caused by vascular smooth muscle cells (VSMCs) by inhibiting the JAK/STAT3/NF-κB pathway, thereby attenuating the symptoms of intracranial aneurysm (IA). IA mouse model was established by stereotactic injection of elastase to evaluate the effect of BP-1-102. The expression levels of smooth muscle markers and matrix metalloproteinases (MMPs) were detected by qRT-PCR, and the levels of inflammatory factors were detected by ELISA and qRT-PCR. The protein levels of the NF-κB signaling pathway factors were examined by Western blot. BP-1-102 reduced blood pressure in aneurysm mice, up-regulated smooth muscle cell markers MHC, SMA, and SM22, and down-regulated the expression of MMP2 and MMP9 in vascular tissues. At the same time, BP-1-102 also down-regulated the expression levels of inflammatory response factors and the NF-κB pathway proteins. In the IA model, BP-1-102 can reduce the expression of inflammatory factors and MMPs bound to NF-κB by inhibiting the activation of the JAK/STAT3/NF-κB pathway proteins, and then restore the vascular wall elastin to reduce blood pressure, thereby treating aneurysm.
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Affiliation(s)
- Zhixian Jiang
- Inpatient Department District N13Chendong Branch of Quanzhou First HospitalQuanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhouChina
| | - Jiaxin Huang
- Inpatient Department District N13Chendong Branch of Quanzhou First HospitalQuanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhouChina
| | - Lingtong You
- Inpatient Department District N13Chendong Branch of Quanzhou First HospitalQuanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhouChina
| | - Jinning Zhang
- Inpatient Department District N13Chendong Branch of Quanzhou First HospitalQuanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhouChina
| | - Bingyu Li
- Geriatrics Department District 7Dongjie Branch of Quanzhou First HospitalQuanzhou First Hospital Affiliated to Fujian Medical UniversityQuanzhouChina
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27
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Endogenous animal models of intracranial aneurysm development: a review. Neurosurg Rev 2021; 44:2545-2570. [PMID: 33501561 DOI: 10.1007/s10143-021-01481-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/05/2021] [Accepted: 01/18/2021] [Indexed: 12/13/2022]
Abstract
The pathogenesis and natural history of intracranial aneurysm (IA) remains poorly understood. To this end, animal models with induced cerebral vessel lesions mimicking human aneurysms have provided the ability to greatly expand our understanding. In this review, we comprehensively searched the published literature to identify studies that endogenously induced IA formation in animals. Studies that constructed aneurysms (i.e., by surgically creating a sac) were excluded. From the eligible studies, we reported information including the animal species, method for aneurysm induction, aneurysm definitions, evaluation methods, aneurysm characteristics, formation rate, rupture rate, and time course. Between 1960 and 2019, 174 articles reported endogenous animal models of IA. The majority used flow modification, hypertension, and vessel wall weakening (i.e., elastase treatment) to induce IAs, primarily in rats and mice. Most studies utilized subjective or qualitative descriptions to define experimental aneurysms and histology to study them. In general, experimental IAs resembled the pathobiology of the human disease in terms of internal elastic lamina loss, medial layer degradation, and inflammatory cell infiltration. After the early 2000s, many endogenous animal models of IA began to incorporate state-of-the-art technology, such as gene expression profiling and 9.4-T magnetic resonance imaging (MRI) in vivo imaging, to quantitatively analyze the biological mechanisms of IA. Future studies aimed at longitudinally assessing IA pathobiology in models that incorporate aneurysm growth will likely have the largest impact on our understanding of the disease. We believe this will be aided by high-resolution, small animal, survival imaging, in situ live-cell imaging, and next-generation omics technology.
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28
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Perrelli A, Fatehbasharzad P, Benedetti V, Ferraris C, Fontanella M, De Luca E, Moglianetti M, Battaglia L, Retta SF. Towards precision nanomedicine for cerebrovascular diseases with emphasis on Cerebral Cavernous Malformation (CCM). Expert Opin Drug Deliv 2021; 18:849-876. [PMID: 33406376 DOI: 10.1080/17425247.2021.1873273] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: Cerebrovascular diseases encompass various disorders of the brain vasculature, such as ischemic/hemorrhagic strokes, aneurysms, and vascular malformations, also affecting the central nervous system leading to a large variety of transient or permanent neurological disorders. They represent major causes of mortality and long-term disability worldwide, and some of them can be inherited, including Cerebral Cavernous Malformation (CCM), an autosomal dominant cerebrovascular disease linked to mutations in CCM1/KRIT1, CCM2, or CCM3/PDCD10 genes.Areas covered: Besides marked clinical and etiological heterogeneity, some commonalities are emerging among distinct cerebrovascular diseases, including key pathogenetic roles of oxidative stress and inflammation, which are increasingly recognized as major disease hallmarks and therapeutic targets. This review provides a comprehensive overview of the different clinical features and common pathogenetic determinants of cerebrovascular diseases, highlighting major challenges, including the pressing need for new diagnostic and therapeutic strategies, and focusing on emerging innovative features and promising benefits of nanomedicine strategies for early detection and targeted treatment of such diseases.Expert opinion: Specifically, we describe and discuss the multiple physico-chemical features and unique biological advantages of nanosystems, including nanodiagnostics, nanotherapeutics, and nanotheranostics, that may help improving diagnosis and treatment of cerebrovascular diseases and neurological comorbidities, with an emphasis on CCM disease.
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Affiliation(s)
- Andrea Perrelli
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy.,CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy
| | - Parisa Fatehbasharzad
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy.,CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy
| | - Valerio Benedetti
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy.,CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy
| | - Chiara Ferraris
- Department of Drug Science and Technology, University of Torino, Torino, Italy.,Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, Torino, Italy
| | - Marco Fontanella
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy.,Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Elisa De Luca
- Nanobiointeractions & Nanodiagnostics, Center for Biomolecular Nanotechnologies, Arnesano, Lecce, Italy.,Institute for Microelectronics and Microsystems (IMM), CNR, Lecce, Italy
| | - Mauro Moglianetti
- Nanobiointeractions & Nanodiagnostics, Center for Biomolecular Nanotechnologies, Arnesano, Lecce, Italy.,Istituto Italiano Di Tecnologia, Nanobiointeractions & Nanodiagnostics, Genova, Italy
| | - Luigi Battaglia
- Department of Drug Science and Technology, University of Torino, Torino, Italy.,Nanostructured Interfaces and Surfaces (NIS) Interdepartmental Centre, University of Torino, Torino, Italy
| | - Saverio Francesco Retta
- Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy.,CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Orbassano, Torino Italy
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29
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Cao H, Chen J, Lai X, Liu T, Qiu P, Que S, Huang Y. Circular RNA expression profile in human primary multiple intracranial aneurysm. Exp Ther Med 2021; 21:239. [PMID: 33603847 PMCID: PMC7851595 DOI: 10.3892/etm.2021.9670] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 12/08/2020] [Indexed: 12/17/2022] Open
Abstract
Primary multiple intracranial aneurysm (MIA) is a vascular disease that frequently leads to fatal vascular rupture and subarachnoid hemorrhage. However, the epigenetic regulation associated with MIA has remained largely elusive. Circular RNAs (circRNAs) serve important roles in cardiovascular diseases; however, their association with MIA has remained to be investigated. The present study initially aimed to explore novel mechanisms of MIA through examining circRNA expression profiles. Comprehensive circRNA expression profiles were detected by RNA sequencing (RNA-Seq) in human peripheral blood mononuclear cells. The RNA-Seq results were validated by reverse transcription-quantitative PCR. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses suggested the functions of these circRNAs. A competing endogenous RNA network was constructed to reveal the circRNA-microRNA-mRNA relationship. Among the 3,328 differentially expressed circRNAs between the MIA and matched control groups, 60 exhibited significant expression changes (|log2 fold change|≥2; P<0.05). Among these 60 circRNAs, 20 were upregulated, while the other 40 were downregulated. A number of downregulated circRNAs were involved in inflammation. The most significant KEGG pathway was ‘leukocyte transendothelial migration’. The circRNAs Homo sapiens (hsa)_circ_0135895, hsa_circ_0000682 and hsa_circ_0000690, which were also associated with the above-mentioned pathway, were indicated to be able to regulate protein tyrosine kinase 2, protein kinase Cβ and integrin subunit αL, respectively. To the best of our knowledge, the present study was the first to perform a circRNA sequencing analysis of MIA. The results specifically predicted the regulatory role of circRNAs in the pathogenesis of MIA. ‘Leukocyte transendothelial migration’ may be critical for the pathogenesis of MIA.
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Affiliation(s)
- Huimin Cao
- Central Laboratory, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
| | - Jia Chen
- Central Laboratory, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
| | - Xiaoyan Lai
- Department of Neurosurgery, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
| | - Tianqin Liu
- Department of Neurosurgery, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
| | - Ping Qiu
- Department of Neurosurgery, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
| | - Shuanglin Que
- Department of Neurosurgery, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
| | - Yanming Huang
- Department of Neurosurgery, Longyan First Hospital Affiliated to Fujian Medical University, Longyan, Fujian 364000, P.R. China
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30
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Chu C, Xu G, Li X, Duan Z, Tao L, Cai H, Yang M, Zhang X, Chen B, Zheng Y, Shi H, Li X. Sustained expression of MCP-1 induced low wall shear stress loading in conjunction with turbulent flow on endothelial cells of intracranial aneurysm. J Cell Mol Med 2020; 25:110-119. [PMID: 33332775 PMCID: PMC7810920 DOI: 10.1111/jcmm.15868] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Revised: 07/30/2020] [Accepted: 08/24/2020] [Indexed: 12/28/2022] Open
Abstract
Shear stress was reported to regulate the expression of AC007362, but its underlying mechanisms remain to be explored. In this study, to isolate endothelial cells of blood vessels, unruptured and ruptured intracranial aneurysm (IA) tissues were collected from IA patients. Subsequently, quantitative real‐time PCR (qRT‐PCR), Western blot and luciferase assay were performed to investigate the relationships between AC007362, miRNAs‐493 and monocyte chemoattractant protein‐1 (MCP‐1) in human umbilical vein endothelial cells (HUVECs) exposed to shear stress. Reduced representation bisulphite sequencing (RRBS) was performed to assess the level of DNA methylation in AC007362 promoter. Accordingly, AC007362 and MCP‐1 were significantly up‐regulated while miR‐493 was significantly down‐regulated in HUVECs exposed to shear stress. AC007362 could suppress the miR‐493 expression and elevate the MCP‐1 expression, and miR‐493 was shown to respectively target AC007362 and MCP‐1. Moreover, shear stress in HUVECs led to the down‐regulated DNA methyltransferase 1 (DNMT1), as well as the decreased DNA methylation level of AC007362 promoter. Similar results were also observed in ruptured IA tissues when compared with unruptured IA tissues. In conclusion, this study presented a deep insight into the operation of the regulatory network of AC007362, miR‐493 and MCP‐1 upon shear stress. Under shear stress, the expression of AC007362 was enhanced by the inhibited promoter DNA methylation, while the expression of MCP‐1 was enhanced by sponging the expression of miR‐493.
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Affiliation(s)
- Cheng Chu
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Gang Xu
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Xiaocong Li
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Zuowei Duan
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Lihong Tao
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Hongxia Cai
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Ming Yang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Xinjiang Zhang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Bin Chen
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Yanyu Zheng
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Hongcan Shi
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Xiaoyu Li
- Department of Pathophysiology, Key Laboratory of Cardiovascular Disease and Molecular Intervention, Nanjing Medical University, Nanjing, China
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31
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Chen S, Yang D, Liu B, Wang L, Chen Y, Ye W, Liu C, Ni L, Zhang X, Zheng Y. Identification and validation of key genes mediating intracranial aneurysm rupture by weighted correlation network analysis. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:1407. [PMID: 33313152 PMCID: PMC7723540 DOI: 10.21037/atm-20-4083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Background Rupture of intracranial aneurysm (IA) is the leading cause of subarachnoid hemorrhage. However, there are few pharmacological therapies available for the prevention of IA rupture. Therefore, exploring the molecular mechanisms which underlie IA rupture and identifying the potential molecular targets for preventing the rupture of IA is of vital importance. Methods We used the Gene Expression Omnibus (GEO) datasets GSE13353, GSE15629, and GSE54083 in our study. The 3 datasets were merged and normalized. Differentially expressed gene (DEG) screening and weighted correlation network analysis (WGCNA) were conducted. The co-expression patterns between ruptured IA samples and unruptured IA samples were compared. Then, the DEGs were mapped into the whole co-expression network of ruptured IA samples, and a DEG co-expression network was generated. Molecular Complex Detection (MCODE) (http://baderlab.org/Software/MCODE) was used to identify key genes based on the DEG co-expression network. Finally, key genes were validated using another GEO dataset (GSE122897), and their potential diagnostic values were shown using receiver operating characteristic (ROC) analysis. Results In our study, 49 DEGs were screened while 8 and 6 gene modules were detected based on ruptured IA samples and unruptured IA samples, respectively. Pathways associated with inflammation and immune response were clustered in the salmon module of ruptured IA samples. The DEG co-expression network with 35 nodes and 168 edges was generated, and 14 key genes were identified based on this DEG co-expression network. The gene with the highest degree in the key gene cluster was CXCR4. All key genes were validated using GSE122897, and they all showed the potential diagnostic value in predicting IA rupture. Conclusions Using a weighted gene co-expression network approach, we identified 8 and 6 modules for ruptured IA and unruptured IA, respectively. After that, we identified the hub genes for each module and key genes based on the DEG co-expression network. All these key genes were validated by another GEO dataset and might serve as potential targets for pharmacological therapies and diagnostic markers in predicting IA rupture. Further studies are needed to elucidate the detailed molecular mechanisms and biological functions of these key genes which underlie the rupture of IA.
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Affiliation(s)
- Siliang Chen
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Dan Yang
- Department of Computational Biology and Bioinformatics, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bao Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Lei Wang
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuexin Chen
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Wei Ye
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Changwei Liu
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Leng Ni
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Xiaobo Zhang
- Department of Radiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuehong Zheng
- Department of Vascular Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Poppenberg KE, Tutino VM, Li L, Waqas M, June A, Chaves L, Jiang K, Jarvis JN, Sun Y, Snyder KV, Levy EI, Siddiqui AH, Kolega J, Meng H. Classification models using circulating neutrophil transcripts can detect unruptured intracranial aneurysm. J Transl Med 2020; 18:392. [PMID: 33059716 PMCID: PMC7565814 DOI: 10.1186/s12967-020-02550-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 09/27/2020] [Indexed: 12/14/2022] Open
Abstract
Background Intracranial aneurysms (IAs) are dangerous because of their potential to rupture. We previously found significant RNA expression differences in circulating neutrophils between patients with and without unruptured IAs and trained machine learning models to predict presence of IA using 40 neutrophil transcriptomes. Here, we aim to develop a predictive model for unruptured IA using neutrophil transcriptomes from a larger population and more robust machine learning methods. Methods Neutrophil RNA extracted from the blood of 134 patients (55 with IA, 79 IA-free controls) was subjected to next-generation RNA sequencing. In a randomly-selected training cohort (n = 94), the Least Absolute Shrinkage and Selection Operator (LASSO) selected transcripts, from which we constructed prediction models via 4 well-established supervised machine-learning algorithms (K-Nearest Neighbors, Random Forest, and Support Vector Machines with Gaussian and cubic kernels). We tested the models in the remaining samples (n = 40) and assessed model performance by receiver-operating-characteristic (ROC) curves. Real-time quantitative polymerase chain reaction (RT-qPCR) of 9 IA-associated genes was used to verify gene expression in a subset of 49 neutrophil RNA samples. We also examined the potential influence of demographics and comorbidities on model prediction. Results Feature selection using LASSO in the training cohort identified 37 IA-associated transcripts. Models trained using these transcripts had a maximum accuracy of 90% in the testing cohort. The testing performance across all methods had an average area under ROC curve (AUC) = 0.97, an improvement over our previous models. The Random Forest model performed best across both training and testing cohorts. RT-qPCR confirmed expression differences in 7 of 9 genes tested. Gene ontology and IPA network analyses performed on the 37 model genes reflected dysregulated inflammation, cell signaling, and apoptosis processes. In our data, demographics and comorbidities did not affect model performance. Conclusions We improved upon our previous IA prediction models based on circulating neutrophil transcriptomes by increasing sample size and by implementing LASSO and more robust machine learning methods. Future studies are needed to validate these models in larger cohorts and further investigate effect of covariates.
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Affiliation(s)
- Kerry E Poppenberg
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA.,Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Vincent M Tutino
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA.,Department of Biomedical Engineering, University of Buffalo, Buffalo, USA.,Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Lu Li
- Department of Computer Science and Engineering, University of Buffalo, Buffalo, USA
| | - Muhammad Waqas
- Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Armond June
- Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Lee Chaves
- Department of Internal Medicine, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Kaiyu Jiang
- Genetics, Genomics, and Bioinformatics Program, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - James N Jarvis
- Genetics, Genomics, and Bioinformatics Program, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Pediatrics, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Yijun Sun
- Genetics, Genomics, and Bioinformatics Program, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Microbiology and Immunology, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Kenneth V Snyder
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA.,Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Radiology, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Elad I Levy
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA.,Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Radiology, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Adnan H Siddiqui
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA.,Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA.,Department of Radiology, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - John Kolega
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA.,Department of Pathology and Anatomical Sciences, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA
| | - Hui Meng
- Canon Stroke and Vascular Research Center, Clinical and Translational Research Center, 875 Ellicott Street, Buffalo, NY, 14214, USA. .,Department of Biomedical Engineering, University of Buffalo, Buffalo, USA. .,Department of Neurosurgery, Jacobs School of Medicine and Biomedical Sciences, Buffalo, USA. .,Department of Mechanical & Aerospace Engineering, University At Buffalo, Buffalo, NY, USA.
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33
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Song TJ, Oh SH, Kim J. The impact of statin therapy after surgical or endovascular treatment of cerebral aneurysms. J Neurosurg 2020; 133:182-189. [PMID: 31125972 DOI: 10.3171/2019.3.jns183500] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 03/08/2019] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Cerebral aneurysms represent the most common cause of spontaneous subarachnoid hemorrhage. Statins are lipid-lowering agents that may expert multiple pleiotropic vascular protective effects. The authors hypothesized that statin therapy after coil embolization or surgical clipping of cerebral aneurysms might improve clinical outcomes. METHODS This was a retrospective cohort study using the National Health Insurance Service-National Sample Cohort Database in Korea. Patients who underwent coil embolization or surgical clipping for cerebral aneurysm between 2002 and 2013 were included. Based on prescription claims, the authors calculated the proportion of days covered (PDC) by statins during follow-up as a marker of statin therapy. The primary outcome was a composite of the development of stroke, myocardial infarction, and all-cause death. Multivariate time-dependent Cox regression analyses were performed. RESULTS A total of 1381 patients who underwent coil embolization (n = 542) or surgical clipping (n = 839) of cerebral aneurysms were included in this study. During the mean (± SD) follow-up period of 3.83 ± 3.35 years, 335 (24.3%) patients experienced the primary outcome. Adjustments were performed for sex, age (as a continuous variable), treatment modality, aneurysm rupture status (ruptured or unruptured aneurysm), hypertension, diabetes mellitus, household income level, and prior history of ischemic stroke or intracerebral hemorrhage as time-independent variables and statin therapy during follow-up as a time-dependent variable. Consistent statin therapy (PDC > 80%) was significantly associated with a lower risk of the primary outcome (adjusted hazard ratio 0.34, 95% CI 0.14-0.85). CONCLUSIONS Consistent statin therapy was significantly associated with better prognosis after coil embolization or surgical clipping of cerebral aneurysms.
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Affiliation(s)
- Tae-Jin Song
- 1Department of Neurology, Mokdong Hospital, Ewha Womans University College of Medicine, Seoul
| | - Seung-Hun Oh
- 2Department of Neurology, CHA Bundang Medical Center, CHA University, Seongnam; and
| | - Jinkwon Kim
- 2Department of Neurology, CHA Bundang Medical Center, CHA University, Seongnam; and
- 3Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
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34
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Li H, Xu H, Li Y, Jiang Y, Hu Y, Liu T, Tian X, Zhao X, Zhu Y, Wang S, Zhang C, Ge J, Wang X, Wen H, Bai C, Sun Y, Song L, Zhang Y, Hui R, Cai J, Chen J. Alterations of gut microbiota contribute to the progression of unruptured intracranial aneurysms. Nat Commun 2020; 11:3218. [PMID: 32587239 PMCID: PMC7316982 DOI: 10.1038/s41467-020-16990-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 06/04/2020] [Indexed: 12/13/2022] Open
Abstract
Unruptured intracranial aneurysm (UIA) is a life-threatening cerebrovascular condition. Whether changes in gut microbial composition participate in the development of UIAs remains largely unknown. We perform a case-control metagenome-wide association study in two cohorts of Chinese UIA patients and control individuals and mice that receive fecal transplants from human donors. After fecal transplantation, the UIA microbiota is sufficient to induce UIAs in mice. We identify UIA-associated gut microbial species link to changes in circulating taurine. Specifically, the abundance of Hungatella hathewayi is markedly decreased and positively correlated with the circulating taurine concentration in both humans and mice. Consistently, gavage with H. hathewayi normalizes the taurine levels in serum and protects mice against the formation and rupture of intracranial aneurysms. Taurine supplementation also reverses the progression of intracranial aneurysms. Our findings provide insights into a potential role of H. hathewayi-associated taurine depletion as a key factor in the pathogenesis of UIAs. Unruptured intracranial aneurysm (UIA) is a life-threatening cerebrovascular condition. Here the authors report altered gut microbiota including low abundance of Hungatella hathewayi in patients with UIAs, and show that supplementation with Hungatella hathewayi or the metabolite taurine prevents UIAs in mice.
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Affiliation(s)
- Hao Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Haochen Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Youxiang Li
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, China
| | - Yuhua Jiang
- Department of Interventional Neuroradiology, Beijing Neurosurgical Institute and Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, China
| | - Yamin Hu
- Department of Cardiology, Cangzhou Central Hospital, Cangzhou, 061000, China
| | - Tingting Liu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Xueqing Tian
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Xihai Zhao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Yandong Zhu
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing, 100084, China
| | - Shuxia Wang
- Chinese PLA General Hospital and Chinese PLA Medical College, Beijing, 100853, China
| | - Chunrui Zhang
- Novogene Bioinformatics Institute, Beijing, 100083, China
| | - Jing Ge
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Xuliang Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Hongyan Wen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Congxia Bai
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Yingying Sun
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Li Song
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Yinhui Zhang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Rutai Hui
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Jun Cai
- Hypertension Center, Fuwai Hospital, State Key Laboratory of Cardiovascular Disease of China, National Center for Cardiovascular Diseases of China, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China
| | - Jingzhou Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100037, China.
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Oka M, Shimo S, Ohno N, Imai H, Abekura Y, Koseki H, Miyata H, Shimizu K, Kushamae M, Ono I, Nozaki K, Kawashima A, Kawamata T, Aoki T. Dedifferentiation of smooth muscle cells in intracranial aneurysms and its potential contribution to the pathogenesis. Sci Rep 2020; 10:8330. [PMID: 32433495 PMCID: PMC7239886 DOI: 10.1038/s41598-020-65361-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 05/04/2020] [Indexed: 12/18/2022] Open
Abstract
Smooth muscle cells (SMCs) are the major type of cells constituting arterial walls and play a role to maintain stiffness via producing extracellular matrix. Here, the loss and degenerative changes of SMCs become the major histopathological features of an intracranial aneurysm (IA), a major cause of subarachnoid hemorrhage. Considering the important role of SMCs and the loss of this type of cells in IA lesions, we in the present study subjected rats to IA models and examined how SMCs behave during disease progression. We found that, at the neck portion of IAs, SMCs accumulated underneath the internal elastic lamina according to disease progression and formed the intimal hyperplasia. As these SMCs were positive for a dedifferentiation marker, myosin heavy chain 10, and contained abundant mitochondria and rough endoplasmic reticulum, SMCs at the intimal hyperplasia were dedifferentiated and activated. Furthermore, dedifferentiated SMCs expressed some pro-inflammatory factors, suggesting the role in the formation of inflammatory microenvironment to promote the disease. Intriguingly, some SMCs at the intimal hyperplasia were positive for CD68 and contained lipid depositions, indicating similarity with atherosclerosis. We next examined a potential factor mediating dedifferentiation and recruitment of SMCs. Platelet derived growth factor (PDGF)-BB was expressed in endothelial cells at the neck portion of lesions where high wall shear stress (WSS) was loaded. PDGF-BB facilitated migration of SMCs across matrigel-coated pores in a transwell system, promoted dedifferentiation of SMCs and induced expression of pro-inflammatory genes in these cells in vitro. Because, in a stenosis model of rats, PDGF-BB expression was expressed in endothelial cells loaded in high WSS regions, and SMCs present nearby were dedifferentiated, hence a correlation existed between high WSS, PDGFB and dedifferentiation in vivo. In conclusion, dedifferentiated SMCs presumably by PDGF-BB produced from high WSS-loaded endothelial cells accumulate in the intimal hyperplasia to form inflammatory microenvironment leading to the progression of the disease.
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Affiliation(s)
- Mieko Oka
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawata-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan
| | - Satoshi Shimo
- Department of Occupational Therapy, Health Science University, 7181 Kodachi, Minamitsurugun Fujikawaguchikomachi, Yamanashi, 401-0380, Japan
| | - Nobuhiko Ohno
- Division of Histology and Cell Biology, Department of Anatomy, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke City, Tochigi, 329-0498, Japan.,Division of Ultrastructural Research, National Institute for Physiological Sciences, 38 Saigonaka, Meidaiji-cho, Okazaki City, Aichi, 444-8787, Japan
| | - Hirohiko Imai
- Department of Systems Science, Graduate School of Informatics, Kyoto University, 36-1 Yoshidahomachi Saikyo-ku, Kyoto City, Kyoto, 606-8317, Japan
| | - Yu Abekura
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Hirokazu Koseki
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, The Jikei University School of Medicine, 3-25-8 Nishi-Shimbashi, Minato-ku, Tokyo, 105-8461, Japan
| | - Haruka Miyata
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga, 520-2192, Japan
| | - Kampei Shimizu
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Mika Kushamae
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8666, Japan
| | - Isao Ono
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.,Department of Neurosurgery, Kyoto University Graduate School of Medicine, 54 Kawahara-cho Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Kazuhiko Nozaki
- Department of Neurosurgery, Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu City, Shiga, 520-2192, Japan
| | - Akitsugu Kawashima
- Department of Neurosurgery, Tokyo Women's Medical University Yachiyo Medical Center, 477-96 Oowadashinden, Yachiyo City, Chiba, 276-8524, Japan
| | - Takakazu Kawamata
- Department of Neurosurgery, Tokyo Women's Medical University, 8-1 Kawata-cho, Shinjyuku-ku, Tokyo, 162-8666, Japan
| | - Tomohiro Aoki
- Department of Molecular Pharmacology, Research Institute, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan. .,Core Research for Evolutional Science and Technology from Japan Agency for Medical Research and Development, National Cerebral and Cardiovascular Center, 6-1 Kishibeshinmachi, Suita City, Osaka, 564-8565, Japan.
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Chen S, Li M, Xin W, Liu S, Zheng L, Li Y, Li M, Zhan M, Yang X. Intracranial aneurysm's association with genetic variants, transcription abnormality, and methylation changes in ADAMTS genes. PeerJ 2020; 8:e8596. [PMID: 32095376 PMCID: PMC7025701 DOI: 10.7717/peerj.8596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/18/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose The development of intracranial aneurysm (IA) has been linked to genetic factors. The current study examines the potential role of genes encoding disintegrin and metalloproteinase using thrombospondin motifs (ADAMTS) in IA development. Material and Methods High-throughput whole-genome and whole-exome sequencing were used when screening for deleterious single-nucleotide variants (SNVs) in ADAMTS genes using samples from 20 Han Chinese patients: 19 with familial IA and one patient with sporadic IA. The variant frequencies in these subjects were compared to those in control individuals found in the Genome Aggregation Database. Transcriptome sequencing and methylation sequencing data were retrieved from the Gene Expression Omnibus (GEO) database to identify differentially expressed ADAMTS genes and their methylation sites. We predicted the network of interactions among proteins encoded by the overlapping set of ADAMTS genes showing deleterious variants and both differential expression and abnormal methylation in IA. Possible candidate proteins linked to IA were validated using Western blot analysis. The associations between IA and SNVs rs11750568 in ADAMTS2, as well as rs2301612 and rs2285489 in ADAMTS13, were verified using the Sequenom MassArray system on a separate sample set of 595 Han Chinese patients with sporadic IA and 600 control individuals. Results A total of 16 deleterious variants in 13 ADAMTS genes were identified in our patients, and seven of these genes overlapped with the genes found to be differentially expressed and differentially methylated in the GEO database. Protein–protein interaction analysis predicted that ADAMTSL1 was at the center of the seven genes. ADAMTSL1 protein was lower expressed in IA tissue than in the control cerebral artery. Frequencies of the IA-related SNVs rs11750568 in ADAMTS2 and rs2301612 and rs2285489 in ADAMTS13 were not significantly different between sporadic IA patients and controls. Conclusion IA is associated with genetic variants, differential expression, and abnormal methylation in ADAMTS genes, ADAMTSL1 in particular.
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Affiliation(s)
- Shi Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Department of Neurosurgery, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China.,Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education of China, Tianjin, China.,Tianjin Neurological Institute, Tianjin, China.,Fuzhou Medical Center of Neuroscience, Fuzhou, China
| | - Mengqi Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education of China, Tianjin, China.,Tianjin Neurological Institute, Tianjin, China
| | - Wenqiang Xin
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education of China, Tianjin, China.,Tianjin Neurological Institute, Tianjin, China
| | - Shengze Liu
- Department of Neurosurgery, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China
| | - Linfei Zheng
- Department of Neurosurgery, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China
| | - Yan Li
- Department of Radiology, Zhenning People's Hospital, Zhengning, Gansu, China
| | - Mengyao Li
- Department of Neurology, Wuzhong People's Hospital, Wuzhong, Ningxia, China
| | - Mengxiong Zhan
- Department of Neurosurgery, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou, Fujian, China
| | - Xinyu Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin, China.,Key Laboratory of Post-Neurotrauma Neurorepair and Regeneration in Central Nervous System, Ministry of Education of China, Tianjin, China.,Tianjin Neurological Institute, Tianjin, China
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Liu Z, Ajimu K, Yalikun N, Zheng Y, Xu F. Potential Therapeutic Strategies for Intracranial Aneurysms Targeting Aneurysm Pathogenesis. Front Neurosci 2019; 13:1238. [PMID: 31849575 PMCID: PMC6902030 DOI: 10.3389/fnins.2019.01238] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 11/01/2019] [Indexed: 12/20/2022] Open
Abstract
Subarachnoid hemorrhage resulting from intracranial aneurysms (IAs) is associated with high rates of morbidity and mortality. Although trigger mechanisms in the pathogenesis of IAs have not been fully elucidated, accumulating evidence has demonstrated that inflammation acts as a critical contributor to aneurysm pathogenesis. IAs is initiated by disruption and dysfunction of endothelial cells (ECs) caused by abnormal wall shear stress (WSS). Subsequently, vascular inflammation can trigger a series of biochemical reactions resulting in vascular smooth muscle cell (VSMC) apoptosis and migration, accompanied by inflammatory cell infiltration, secretion of various cytokines, and inflammatory factors. These changes result in degradation of vascular wall, leading to the progression and eventual rupture of IAs. Increasing our knowledge of the pathogenesis of these lesions will offer physicians new options for prevention and treatment. In this study, we review aneurysmal pathogenesis to seek for safe, effective, and non-invasive therapeutic strategies.
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Affiliation(s)
- Zhao Liu
- Department of Neurosurgery, Jingjiang People's Hospital, Taizhou, China
| | - Kuerban Ajimu
- Department of Neurosurgery, First People's Hospital of Kashgar, Kashgar, China
| | - Naibijiang Yalikun
- Department of Neurosurgery, Hotan District People's Hospital, Hotan, China
| | - Yongtao Zheng
- Department of Neurosurgery, Shanghai Medical College, Huashan Hospital Fudan University, Shanghai, China
| | - Feng Xu
- Department of Neurosurgery, Shanghai Medical College, Huashan Hospital Fudan University, Shanghai, China.,Department of Neurosurgery, Kashgar Prefecture Second People's Hospital, Kashgar, China
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Characteristics of circulating monocytes at baseline and after activation in patients with intracranial aneurysm. Hum Immunol 2019; 81:41-47. [PMID: 31735443 DOI: 10.1016/j.humimm.2019.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 10/11/2019] [Accepted: 11/06/2019] [Indexed: 11/24/2022]
Abstract
Intracranial aneurysm (IA) is a bulging of blood vessels around the brain that is often asymptomatic but may cause severe complications and death if ruptured. Macrophage-mediated immune responses can contribute to the development of IA. During homeostasis and inflammation, circulating monocytes can infiltrate the vasculature, where they develop into macrophages, and modulate immune responses. Based on the expression of CD14 and CD16, total circulating monocytes can be distinguished into three main subsets, including the CD14+CD16- classical monocytes, the CD14+CD16+ intermediate monocytes, and the CD14loCD16++ non-classical monocytes. In this study, we found that frequencies of CD14+CD16- classical monocytes were significantly lower in IA patients than in healthy controls, while the frequencies of CD14+CD16+ intermediate monocytes and CD14loCD16++ non-classical monocytes were significantly higher in IA patients than in healthy controls. The frequencies of CD14+CD16+ intermediate monocytes were further elevated in IA-ruptured patients compared to those in IA-unruptured patients. Compared to classical monocytes, intermediate monocytes and non-classical monocytes presented higher TNF-α and IL-1β expression. When cocultured with autologous naive CD4 T cells, intermediate and non-classical monocytes preferentially promoted the expression of TBX21 and RORC over the expression of FOXP3 in CD4 T cells. Inhibition of TNF-α and IL-1β slightly reduced TBX21 expression and markedly reduced RORC expression, and at the same time significantly increased FOXP3 expression in CD4 T cells. Overall, this study demonstrated that the monocytes were dysregulated in IA patients in a manner that favored the development of proinflammatory responses.
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Li T, Tan X, Zhu S, Zhong W, Huang B, Sun J, Li F, Wang Y. SPARC induces phenotypic modulation of human brain vascular smooth muscle cells via AMPK/mTOR-mediated autophagy. Neurosci Lett 2019; 712:134485. [DOI: 10.1016/j.neulet.2019.134485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/15/2019] [Accepted: 09/05/2019] [Indexed: 12/24/2022]
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Yang X, Peng J, Pang J, Wan W, Chen L. A functional polymorphism in the promoter region of miR-155 predicts the risk of intracranial hemorrhage caused by rupture intracranial aneurysm. J Cell Biochem 2019; 120:18618-18628. [PMID: 31338876 DOI: 10.1002/jcb.28785] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/10/2019] [Indexed: 01/28/2023]
Abstract
BACKGROUND This study aimed to study the effect and underlying molecular mechanisms of single-nucleotide polymorphism (SNP) rs767649 during the pathogenesis of intracranial aneurysm (IA) rupture. METHOD Real-time PCR and Western blot analysis were performed to detect the differentiated expression of miR-155 and matrix metalloproteinase-2 (MMP-2) among different sample groups. Computational analysis and luciferase assay were conducted to study the effect of SNP rs767649 on the expression of miR-155 as well as the regulatory relationship between miR-155 and MMP-2. RESULTS In unruptured IA samples, the expression of miR-155 was upregulated while the expression of MMP-2 was downregulated compared with the ruptured IA samples. Similarly, the expression of miR-155 was upregulated while the expression of MMP-2 was downregulated in samples genotyped as AA/AT compared with samples genotyped as TT. In addition, compared with the negative controls, the luciferase activities of cells treated with rs767649A and rs767649T were both elevated with rs767649A-transfected cells expressing the highest luciferase activity. Furthermore, a negative relationship was established between miR-155 and MMP-2 by measuring the luciferase activity of cells cotransfected with miR-155 and the wild-type 3'-untranslated region of MMP-2. CONCLUSION The results of this study showed that the SNP rs767649 in the promoter of miR-155 could reduce the transcription activity of miR-155, while poorly expressed miR-155 could increase the incidence of IA rupture by increasing the expression of MMP-2, especially in subjects carrying the TT genotype of SNP rs767649.
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Affiliation(s)
- Xiaobo Yang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jianhua Peng
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Jinwei Pang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Weifeng Wan
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Ligang Chen
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
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Staarmann B, Smith M, Prestigiacomo CJ. Shear stress and aneurysms: a review. Neurosurg Focus 2019; 47:E2. [DOI: 10.3171/2019.4.focus19225] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Accepted: 04/08/2019] [Indexed: 12/16/2022]
Abstract
Wall shear stress, the frictional force of blood flow tangential to an artery lumen, has been demonstrated in multiple studies to influence aneurysm formation and risk of rupture. In this article, the authors review the ways in which shear stress may influence aneurysm growth and rupture through changes in the vessel wall endothelial cells, smooth-muscle cells, and surrounding adventitia, and they discuss shear stress–induced pathways through which these changes occur.
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Affiliation(s)
| | - Matthew Smith
- 2Neurology, University of Cincinnati Medical Center, Cincinnati, Ohio
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Intracranial Aneurysms: Pathology, Genetics, and Molecular Mechanisms. Neuromolecular Med 2019; 21:325-343. [PMID: 31055715 DOI: 10.1007/s12017-019-08537-7] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 04/08/2019] [Indexed: 12/14/2022]
Abstract
Intracranial aneurysms (IA) are local dilatations in cerebral arteries that predominantly affect the circle of Willis. Occurring in approximately 2-5% of adults, these weakened areas are susceptible to rupture, leading to subarachnoid hemorrhage (SAH), a type of hemorrhagic stroke. Due to its early age of onset and poor prognosis, SAH accounts for > 25% of years lost for all stroke victims under the age of 65. In this review, we describe the cerebrovascular pathology associated with intracranial aneurysms. To understand IA genetics, we summarize syndromes with elevated incidence, genome-wide association studies (GWAS), whole exome studies on IA-affected families, and recent research that established definitive roles for Thsd1 (Thrombospondin Type 1 Domain Containing Protein 1) and Sox17 (SRY-box 17) in IA using genetically engineered mouse models. Lastly, we discuss the underlying molecular mechanisms of IA, including defects in vascular endothelial and smooth muscle cells caused by dysfunction in mechanotransduction, Thsd1/FAK (Focal Adhesion Kinase) signaling, and the Transforming Growth Factor β (TGF-β) pathway. As illustrated by THSD1 research, cell adhesion may play a significant role in IA.
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Lai XL, Deng ZF, Zhu XG, Chen ZH. Apc gene suppresses intracranial aneurysm formation and rupture through inhibiting the NF-κB signaling pathway mediated inflammatory response. Biosci Rep 2019; 39:BSR20181909. [PMID: 30808715 PMCID: PMC6434386 DOI: 10.1042/bsr20181909] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 02/14/2019] [Accepted: 02/19/2019] [Indexed: 01/02/2023] Open
Abstract
Background: Intracranial aneurysm (IA) is a critical acquired cerebrovascular disease that may cause subarachnoid hemorrhage, and nuclear factor-κB (NF-κB)-mediated inflammation is involved in the pathogenesis of IA. Adenomatous polyposis coli (Apc) gene is a tumor suppressor gene associated with both familial and sporadic cancer. Herein, the purpose of our study is to validate effect of Apc gene on IA formation and rupture by regulating the NF-κB signaling pathway mediated inflammatory response. Methods: We collected IA specimens (from incarceration of IA) and normal cerebral arteries (from surgery of traumatic brain injury) to examine expression of Apc and the NF-κB signaling pathway related factors (NF-κB p65 and IκBα). ELISA was used to determine levels of monocyte chemoattractant protein-1 (MCP-1), tumor necrosis factor-α (TNF-α), interleukin (IL)-1β (IL-1β), and IL-6. IA model was established in rats, and Apc-siRNA was treated to verify effect of Apc on IA formation and rupture. Next, regulation of Apc on the NF-κB signaling pathway was investigated. Results: Reduced expression of Apc and IκBα, and increased expression of NF-κB p65 were found in IA tissues. MCP-1, TNF-α, IL-1β, and IL-6 exhibited higher levels in unruptured and ruptured IA, which suggested facilitated inflammatory responses. In addition, the IA rats injected with Apc-siRNA showed further enhanced activation of NF-κB signaling pathway, and up-regulated levels of MCP-1, TNF-α, IL-1β, IL-6, MMP-2, and MMP-9 as well as extent of p65 phosphorylation in IA. Conclusion: Above all, Apc has the potential role to attenuate IA formation and rupture by inhibiting inflammatory response through repressing the activation of the NF-κB signaling pathway.
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Affiliation(s)
- Xian-Liang Lai
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zhi-Feng Deng
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Xin-Gen Zhu
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - Zhi-Hua Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
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Chen B, Sun H, Zhao Y, Lun P, Feng Y. An 85-Gene Coexpression Module for Progression of Hypertension-Induced Spontaneous Intracerebral Hemorrhage. DNA Cell Biol 2019; 38:449-456. [PMID: 30839233 DOI: 10.1089/dna.2018.4425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Intracerebral hemorrhage (ICH) represents the most lethal form of stroke. We sought to identify potential genes that might contribute to progression of hypertension-induced spontaneous ICH (HIS-ICH). RNA-sequencing data set of cerebral vessel samples from HIS-ICH mice and normal mice was obtained from the Gene Expression Omnibus. Differential expression genes in HIS-ICH samples were obtained compared with normal samples followed by functional enrichment analysis. What is more, we explored the potential gene coexpression module (GCM) for HIS-ICH progression by using weighted gene coexpression network analysis. We further conducted protein-protein interaction network analysis for genes contained in GCM that was closely correlated with HIS-ICH to disclose their biological interactions. As a result, 554 genes were found to aberrantly express in HIS-ICH mice compared with normal mice, which were mainly associated with cancer-related pathways in addition to some well-known ICH-related pathways. A total of 28 GCMs were obtained, and darkturquoise module that contained 85 genes, which were closely associated with mitochondrion and hydrolase activity, was significantly correlated with HIS-ICH progression. Besides, we identified dense biological interactions among some genes in darkturquoise, such as Psma gene family and Hsp90a gene family. This study should shed new light on HIS-ICH progression and its treatment.
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Affiliation(s)
- Bing Chen
- 1 Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hu Sun
- 1 Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China.,2 Department of Neurosurgery, Zibo Central Hospital, Zibo, Shandong, China
| | - Yan Zhao
- 1 Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peng Lun
- 1 Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yugong Feng
- 1 Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
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Cheng Z, Zhou YZ, Wu Y, Wu QY, Liao XB, Fu XM, Zhou XM. Diverse roles of macrophage polarization in aortic aneurysm: destruction and repair. J Transl Med 2018; 16:354. [PMID: 30545380 PMCID: PMC6293547 DOI: 10.1186/s12967-018-1731-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Accepted: 12/06/2018] [Indexed: 12/21/2022] Open
Abstract
Aortic aneurysm (AA) is defined as an enlargement of the aorta greater than 1.5 times its normal size. Early diagnosis of AA is challenging and mortality of AA is high. Curative pharmacological treatments for AA are still lacking, highlighting the need for better understanding of the underlying mechanisms of AA progression. Accumulating studies have proven that the polarization state of circulating monocyte-derived macrophages plays a crucial role in regulating the development of AA. Distinct macrophage subtypes display different functions. Several studies targeting macrophage polarization during AA formation and progression showed potential treatment effects. In this review, we focus on the recent advances of research on macrophage polarization in the progression of AA and propose that targeting macrophage polarization could hold great promise for preventing and treating AA.
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Affiliation(s)
- Zhao Cheng
- Department of Hematology, Institute of Molecular Hematology, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yang-Zhao Zhou
- Department of Cardiovascular Surgery, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Yin Wu
- Department of Cardiovascular Surgery, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Qi-Ying Wu
- Department of Cardiovascular Surgery, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xiao-Bo Liao
- Department of Cardiovascular Surgery, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xian-Ming Fu
- Department of Cardiovascular Surgery, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
| | - Xin-Min Zhou
- Department of Cardiovascular Surgery, The Second Xiang-ya Hospital, Central South University, Changsha, Hunan, People's Republic of China
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Zhao MG, Liang GB, Zhang HF, Zhao GF, Luo YH. Soluble galectin 9 potently enhanced regulatory T-cell formation, a pathway impaired in patients with intracranial aneurysm. Clin Exp Pharmacol Physiol 2018; 45:1206-1212. [PMID: 29978574 DOI: 10.1111/1440-1681.13007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 06/30/2018] [Accepted: 07/03/2018] [Indexed: 01/15/2023]
Affiliation(s)
- Ming-Guang Zhao
- Department of Neurosurgery; General Hospital of Shenyang Military Area Command; Shenhe District Shenyang China
| | - Guo-Biao Liang
- Department of Neurosurgery; General Hospital of Shenyang Military Area Command; Shenhe District Shenyang China
| | - Hai-Feng Zhang
- Department of Neurosurgery; General Hospital of Shenyang Military Area Command; Shenhe District Shenyang China
| | - Guo-Feng Zhao
- Department of Neurosurgery; General Hospital of Shenyang Military Area Command; Shenhe District Shenyang China
| | - Yun-He Luo
- Department of Neurosurgery; General Hospital of Shenyang Military Area Command; Shenhe District Shenyang China
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47
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High-resolution Imaging of Myeloperoxidase Activity Sensors in Human Cerebrovascular Disease. Sci Rep 2018; 8:7687. [PMID: 29769642 PMCID: PMC5956082 DOI: 10.1038/s41598-018-25804-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/26/2018] [Indexed: 01/23/2023] Open
Abstract
Progress in clinical development of magnetic resonance imaging (MRI) substrate-sensors of enzymatic activity has been slow partly due to the lack of human efficacy data. We report here a strategy that may serve as a shortcut from bench to bedside. We tested ultra high-resolution 7T MRI (µMRI) of human surgical histology sections in a 3-year IRB approved, HIPAA compliant study of surgically clipped brain aneurysms. µMRI was used for assessing the efficacy of MRI substrate-sensors that detect myeloperoxidase activity in inflammation. The efficacy of Gd-5HT-DOTAGA, a novel myeloperoxidase (MPO) imaging agent synthesized by using a highly stable gadolinium (III) chelate was tested both in tissue-like phantoms and in human samples. After treating histology sections with paramagnetic MPO substrate-sensors we observed relaxation time shortening and MPO activity-dependent MR signal enhancement. An increase of normalized MR signal generated by ultra-short echo time MR sequences was corroborated by MPO activity visualization by using a fluorescent MPO substrate. The results of µMRI of MPO activity associated with aneurysmal pathology and immunohistochemistry demonstrated active involvement of neutrophils and neutrophil NETs as a result of pro-inflammatory signalling in the vascular wall and in the perivascular space of brain aneurysms.
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Endovascular Management of Multiple Dysplastic Aneurysms in a Young Man with an Unknown Underlying Cause: A Case Report and Review of the Literature. World Neurosurg 2018; 111:349-357. [PMID: 29289804 DOI: 10.1016/j.wneu.2017.12.129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 12/17/2017] [Accepted: 12/18/2017] [Indexed: 11/23/2022]
Abstract
BACKGROUND Intracranial aneurysms are the leading cause of nontraumatic subarachnoid hemorrhage and are most commonly associated with the anterior cerebral artery (ACA) and anterior communicating artery complex. We describe the presentation and management of a 27-year-old man with concurrent bilateral A1-2 junction aneurysms and fusiform intraorbital ophthalmic artery (OA) aneurysms. CASE DESCRIPTION A 27-year-old man with no past medical history presented with 3 months of headaches. Imaging showed a large dysplastic left A1-2 junction aneurysm and a smaller saccular right A1-2 junction aneurysm, with potentially adherent domes. Two fusiform aneurysms of the intraorbital segment of the left OA were also identified. The patient underwent coil-assisted pipeline embolization of the left A1-A2 aneurysm, with complete obliteration and reconstitution of the normal parent vessel. The patient underwent coil embolization of the right A1-2 aneurysm 3 weeks later, which was found to have grown significantly at the time of treatment. Three-month follow-up showed spontaneous resolution of the OA aneurysms, persistent obliteration of the left aneurysm, and significant recurrence of the right aneurysm, which was treated with stent-assisted coil embolization. A second recurrence 3 months later was successfully treated with repeat coiling. At the time of this treatment, the patient was also found to have 2 de novo distal middle cerebral artery and ACA dysplastic aneurysms, which were not treated. Follow-up angiography 6 weeks later showed stable complete obliteration of the right A1-2 aneurysm and interval complete resolution of the dysplastic middle cerebral artery aneurysm. The distal ACA aneurysm was observed to have minimally increased in size; however, the parent vessel showed signs of interval partial thrombosis with contrast stasis within the aneurysm. This final aneurysm is being followed with serial imaging. The patient remains neurologically intact with complete resolution of his headaches. CONCLUSIONS We report the case of a young man with no past medical history who presented with multiple dysplastic aneurysms. Successful staged endovascular intervention resulted in obliteration of aneurysms with spontaneous obliteration of the intraorbital OA aneurysms observed at 3 months. We present this case to review the multiple challenges of managing complex ACA aneurysms and to highlight the usefulness of endovascular intervention in their treatment.
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Macrophage Polarization in Cerebral Aneurysm: Perspectives and Potential Targets. J Immunol Res 2017; 2017:8160589. [PMID: 29445758 PMCID: PMC5763122 DOI: 10.1155/2017/8160589] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 10/20/2017] [Accepted: 11/13/2017] [Indexed: 12/19/2022] Open
Abstract
Cerebral aneurysms (CAs) have become a health burden not only because their rupture is life threatening, but for a series of devastating complications left in survivors. It is well accepted that sustained chronic inflammation plays a crucial role in the pathology of cerebral aneurysms. In particular, macrophages have been identified as critical effector cells orchestrating inflammation in CAs. In recent years, dysregulated M1/M2 polarization has been proposed to participate in the progression of CAs. Although the pathological mechanisms of M1/M2 imbalance in CAs remain largely unknown, recent advances have been made in the understanding of the molecular basis and other immune cells involving in this sophisticated network. We provide a concise overview of the mechanisms associated with macrophage plasticity and the emerging molecular targets.
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Wu X, Zhang JZ, Yang PF, Huang QH, Liu JM. Regulation of Kruppel-like factor 2 (KLF2) in the pathogenesis of intracranial aneurysm induced by hemodynamics. Am J Transl Res 2017; 9:5452-5460. [PMID: 29312497 PMCID: PMC5752895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 09/28/2017] [Indexed: 06/07/2023]
Abstract
Kruppel-like factor 2 (KLF2) has been found to regulate the reconstruction of vascular wall tissue and participate in the pathogenic mechanism of intracranial aneurysms. However, there is a paucity of research in this area. The present study aimed to investigate the regulatory effect of KLF2 on intracranial aneurysm (IA) and explore novel therapeutic strategies for treating IA. Experimental animal models were established with SPF New Zealand rabbits by bilateral carotid artery ligation (BCAL). Morphology of basilar artery bifurcation was detected using HE, EVG, Masson and immunohistochemical (IHC) staining. Vascular smooth muscle cells were harvested from basilar artery and cultured to establish KLF2 up-regulated and down-regulated cell models. The mRNA expression of KLF2, eNOS, ICAM-1 and MMP-9 were detected using real-time quantitate PCR (RT-qPCR). Protein expression of KLF2 and MAPKs pathway were measured using western blot. IA models were successfully established by bilateral carotid artery ligation. KLF2 expression was inconsistent with the variation of hemodynamics. In the KLF2 overexpression group, the mRNA expression of eNOS was increased, while that of ICAM-1 and MMP-9 was decreased. When KLF2 was up-regulated, the phosphorylation activity of p38 pathway was increased. In conclusion, results reveal that KLF2 is up-regulated in the vascular wall of basilar artery, and its overexpression regulates the pathogenesis of IA, which may be a self-protection mechanism of the arterial wall, providing a novel insight for therapy of IA.
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Affiliation(s)
- Xi Wu
- Department of Neurosurgery, Changhai HospitalShanghai, China
| | - Jian-Zhong Zhang
- Department of Neurosurgery, Chinese People’s Liberation Army NO. 455 HospitalShanghai, China
| | - Peng-Fei Yang
- Department of Neurosurgery, Changhai HospitalShanghai, China
| | - Qing-Hai Huang
- Department of Neurosurgery, Changhai HospitalShanghai, China
| | - Jian-Min Liu
- Department of Neurosurgery, Changhai HospitalShanghai, China
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