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Seyedaghamiri F, Geranmayeh MH, Ghadiri T, Ebrahimi-Kalan A, Hosseini L. A new insight into the role of pericytes in ischemic stroke. Acta Neurol Belg 2024; 124:767-774. [PMID: 37805645 DOI: 10.1007/s13760-023-02391-y] [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: 03/04/2023] [Accepted: 09/19/2023] [Indexed: 10/09/2023]
Abstract
The functional structure of the blood-brain barrier (BBB) deteriorates after stroke by developing diffuse microvascular and neurovascular dysfunction and loss of white matter integrity. This causes nervous tissue injury and causes sensory and motor disabilities in stroke patients. Improving the integrity of the BBB and neurovascular remodeling after stroke can promote post-stroke injury conditions. Pericytes are contractile cells abundant in the BBB and sandwiched between astrocytes and endothelial cells of the microvessels. Stroke could lead to the degeneration of pericytes in the BBB. However, recent evidence shows that promoting pericytes enhances BBB integrity and neurovascular remodeling. Furthermore, pericytes achieve multipotent properties under hypoxic conditions, allowing them to transdifferentiate into the brain resident cells such as microglia. Microglia regulate immunity and inflammatory response after stroke. The current review studies recent findings in the intervening mechanisms underlying the regulatory effect of pericytes in BBB recovery after stroke.
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Affiliation(s)
- Fatemehsadat Seyedaghamiri
- Department of Neuroscience, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Tahereh Ghadiri
- Department of Neuroscience, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Abbas Ebrahimi-Kalan
- Department of Neuroscience, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Leila Hosseini
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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2
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Li Z, Wang W, Li W, Duan H, Xu C, Tian X, Ning F, Zhang D. Co-methylation analyses identify CpGs associated with lipid traits in Chinese discordant monozygotic twins. Hum Mol Genet 2024; 33:583-593. [PMID: 38142287 DOI: 10.1093/hmg/ddad207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 11/29/2023] [Accepted: 12/05/2023] [Indexed: 12/25/2023] Open
Abstract
To control genetic background and early life milieu in genome-wide DNA methylation analysis for blood lipids, we recruited Chinese discordant monozygotic twins to explore the relationships between DNA methylations and total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglycerides (TG). 132 monozygotic (MZ) twins were included with discordant lipid levels and completed data. A linear mixed model was conducted in Epigenome-wide association study (EWAS). Generalized estimating equation model was for gene expression analysis. We conducted Weighted correlation network analysis (WGCNA) to build co-methylated interconnected network. Additional Qingdao citizens were recruited for validation. Inference about Causation through Examination of Familial Confounding (ICE FALCON) was used to infer the possible direction of these relationships. A total of 476 top CpGs reached suggestively significant level (P < 10-4), of which, 192 CpGs were significantly associated with TG (FDR < 0.05). They were used to build interconnected network and highlight crucial genes from WGCNA. Finally, four CpGs in GATA4 were validated as risk factors for TC; six CpGs at ITFG2-AS1 were negatively associated with TG; two CpGs in PLXND1 played protective roles in HDL-C. ICE FALCON indicated abnormal TC was regarded as the consequence of DNA methylation in CpGs at GATA4, rather than vice versa. Four CpGs in ITFG2-AS1 were both causes and consequences of modified TG levels. Our results indicated that DNA methylation levels of 12 CpGs in GATA4, ITFG2-AS1, and PLXND1 were relevant to TC, TG, and HDL-C, respectively, which might provide new epigenetic insights into potential clinical treatment of dyslipidemia.
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Affiliation(s)
- Zhaoying Li
- Department of Epidemiology and Health Statistics, The College of Public Health of Qingdao University, No. 308 Ning Xia Street, Qingdao 266071, Shandong Province, People's Republic of China
| | - Weijing Wang
- Department of Epidemiology and Health Statistics, The College of Public Health of Qingdao University, No. 308 Ning Xia Street, Qingdao 266071, Shandong Province, People's Republic of China
| | - Weilong Li
- Epidemiology and Biostatistics, Department of Public Health, University of Southern Denmark, J.B. Winsløws Vej 9 B, st. tv. Odense C DK-5000, Denmark
| | - Haiping Duan
- Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
- Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
| | - Chunsheng Xu
- Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
- Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
| | - Xiaocao Tian
- Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
- Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
| | - Feng Ning
- Qingdao Municipal Center for Disease Control and Prevention, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
- Qingdao Institute of Preventive Medicine, No. 175 Shandong Road, Qingdao 266000, Shandong Province, People's Republic of China
| | - Dongfeng Zhang
- Department of Epidemiology and Health Statistics, The College of Public Health of Qingdao University, No. 308 Ning Xia Street, Qingdao 266071, Shandong Province, People's Republic of China
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Zhu X, An X, Chen M, Guo D, Xie P, Wang B, Huang Z, Yu W. Seipin overexpression attenuates cerebral ischemia-reperfusion injury via preventing apoptosis and autophagy. Brain Behav 2023; 13:e3195. [PMID: 37897134 PMCID: PMC10726895 DOI: 10.1002/brb3.3195] [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: 03/05/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Ischemic cerebrovascular disease (ICVD) is one of three fatal diseases in humans, along with heart disease and malignant tumors. Cerebral ischemia/reperfusion injury (CI/RI) is the primary cause of ICVD. Recently, seipin was reported to be crucial for lipid droplet formation, hepatic steatosis, and axonal atrophy. However, the function and mechanism of seipin in CI/RI has not been explicitly stated. METHODS Oxygen-glucose deprivation/reoxygenation (OGD/R) hippocampal neuron cell line (HT-22) and middle cerebral artery occlusion (MCAO) in rats were established. The levels of apoptosis- and autophagy-related proteins and seipin were confirmed by western blot. Cell proliferation was assessed with CCK-8, and ischemic infarction and pathological structure were monitored by TTC and H&E staining, and tissue apoptosis was assessed through TUNEL assay. RESULTS The proliferative activity was decreased, and apoptosis and autophagy pathways could also be induced in the OGD/R HT-22 cells. Seipin overexpression accelerated viability and inhibited apoptosis and autophagy in the OGD/R HT-22 cells. Moreover, the data revealed that seipin overexpression could also attenuate cerebral infarction, apoptosis. Autophagy pathways could be repressed by seipin in the MCAO rats. CONCLUSION Seipin has a protective role against CI/RI in rats, and its mechanism might be relevant to the suppression of apoptosis and autophagy, suggesting that seipin might be a latent target for CI/RI.
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Affiliation(s)
- Xiaoxi Zhu
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
- Cell engineering LaboratoryAffiliated Hospital of Zunyi Medical UniversityZunyi CityChina
| | - Xiaoqiong An
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Ming Chen
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Dongfen Guo
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Peng Xie
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Bi Wang
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Zhi Huang
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
| | - Wenfeng Yu
- Key Laboratory of Molecular BiologySchool of Basic Medical Science of Guizhou Medical UniversityGuiyang CityChina
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Hu S, Yang B, Shu S, He X, Sang H, Fan X, Zhang H. Targeting Pericytes for Functional Recovery in Ischemic Stroke. Neuromolecular Med 2023; 25:457-470. [PMID: 37166748 DOI: 10.1007/s12017-023-08748-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/03/2023] [Indexed: 05/12/2023]
Abstract
Pericytes surrounding endothelial cells in the capillaries are emerging as an attractive cell resource, which can show a large variety of functions in ischemic stroke, including preservation of the blood-brain barrier, regulation of immune function, and support for cerebral vasculature. These functions have been fully elucidated in previous studies. However, in recent years, increasing evidence has shown that pericytes play an important role in neurological recovery after ischemic stroke due to their regenerative function which can be summarized in two aspects according to current discoveries, one is that pericytes are thought to be multipotential themselves, and the other is that pericytes can promote the differentiation of oligodendrocyte progenitor cells (OPCs). Considering the neuroprotective treatment for stroke has not been much progressed in recent years, new therapies targeting pericytes may be a future direction. Here, we will review the beneficial effects of pericytes in ischemic stroke from two directions: the barrier and vascular functions and the regenerative functions of pericytes.
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Affiliation(s)
- Shuqi Hu
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Bingjie Yang
- Department of Neurology, The Fourth Clinical School of Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China
| | - Song Shu
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Xudong He
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Hongfei Sang
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Xuemei Fan
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China
| | - Hao Zhang
- Department of Neurology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang, China.
- Department of Neurology, The Fourth Clinical School of Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, Zhejiang, China.
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Abstract
Pericytes are specialized cells located in close proximity to endothelial cells within the microvasculature. They play a crucial role in regulating blood flow, stabilizing vessel walls, and maintaining the integrity of the blood-brain barrier. The loss of pericytes has been associated with the development and progression of various diseases, such as diabetes, Alzheimer's disease, sepsis, stroke, and traumatic brain injury. This review examines the detection of pericyte loss in different diseases, explores the methods employed to assess pericyte coverage, and elucidates the potential mechanisms contributing to pericyte loss in these pathological conditions. Additionally, current therapeutic strategies targeting pericytes are discussed, along with potential future interventions aimed at preserving pericyte function and promoting disease mitigation.
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Affiliation(s)
| | - Hongkuan Fan
- Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC 29425, USA;
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Lu H, Chen S, Nie Q, Xue Q, Fan H, Wang Y, Fan S, Zhu J, Shen H, Li H, Fang Q, Ni J, Chen G. Synaptotagmin-3 interactions with GluA2 mediate brain damage and impair functional recovery in stroke. Cell Rep 2023; 42:112233. [PMID: 36892998 DOI: 10.1016/j.celrep.2023.112233] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 01/20/2023] [Accepted: 02/23/2023] [Indexed: 03/10/2023] Open
Abstract
Synaptotagmin III (Syt3) is a Ca2+-dependent membrane-traffic protein that is highly concentrated in synaptic plasma membranes and affects synaptic plasticity by regulating post-synaptic receptor endocytosis. Here, we show that Syt3 is upregulated in the penumbra after ischemia/reperfusion (I/R) injury. Knockdown of Syt3 protects against I/R injury, promotes recovery of motor function, and inhibits cognitive decline. Overexpression of Syt3 exerts the opposite effects. Mechanistically, I/R injury augments Syt3-GluA2 interactions, decreases GluA2 surface expression, and promotes the formation of Ca2+-permeable AMPA receptors (CP-AMPARs). Using a CP-AMPAR antagonist or dissociating the Syt3-GluA2 complex via TAT-GluA2-3Y peptide promotes recovery from neurological impairments and improves cognitive function. Furthermore, Syt3 knockout mice are resistant to cerebral ischemia because they show high-level expression of surface GluA2 and low-level expression of CP-AMPARs after I/R. Our results indicate that Syt3-GluA2 interactions, which regulate the formation of CP-AMPARs, may be a therapeutic target for ischemic insults.
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Affiliation(s)
- Haifeng Lu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Shujun Chen
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Qianqian Nie
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Qun Xue
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China.
| | - Hua Fan
- The First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471000, Henan, China
| | - Yiqing Wang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Shenghao Fan
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Juehua Zhu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Qi Fang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Jianqiang Ni
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu, China; Institute of Stroke Research, Soochow University, Suzhou 215006, Jiangsu, China.
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7
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Park HY, van Bruggen VLE, Peutz-Kootstra CJ, Ophelders DRMG, Jellema RK, Reutelingsperger CPM, Rutten BPF, Wolfs TGAM. Time Dependent Changes in the Ovine Neurovascular Unit; A Potential Neuroprotective Role of Annexin A1 in Neonatal Hypoxic-Ischemic Encephalopathy. Int J Mol Sci 2023; 24:ijms24065929. [PMID: 36983004 PMCID: PMC10054605 DOI: 10.3390/ijms24065929] [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: 01/18/2023] [Revised: 03/17/2023] [Accepted: 03/17/2023] [Indexed: 03/30/2023] Open
Abstract
Perinatal brain injury following hypoxia-ischemia (HI) is characterized by high mortality rates and long-term disabilities. Previously, we demonstrated that depletion of Annexin A1, an essential mediator in BBB integrity, was associated with a temporal loss of blood-brain barrier (BBB) integrity after HI. Since the molecular and cellular mechanisms mediating the impact of HI are not fully scrutinized, we aimed to gain mechanistic insight into the dynamics of essential BBB structures following global HI in relation to ANXA1 expression. Global HI was induced in instrumented preterm ovine fetuses by transient umbilical cord occlusion (UCO) or sham occlusion (control). BBB structures were assessed at 1, 3, or 7 days post-UCO by immunohistochemical analyses of ANXA1, laminin, collagen type IV, and PDGFRβ for pericytes. Our study revealed that within 24 h after HI, cerebrovascular ANXA1 was depleted, which was followed by depletion of laminin and collagen type IV 3 days after HI. Seven days post-HI, increased pericyte coverage, laminin and collagen type IV expression were detected, indicating vascular remodeling. Our data demonstrate novel mechanistic insights into the loss of BBB integrity after HI, and effective strategies to restore BBB integrity should potentially be applied within 48 h after HI. ANXA1 has great therapeutic potential to target HI-driven brain injury.
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Affiliation(s)
- Hyun Young Park
- Department of Pediatrics, School of Oncology and Reproduction (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Valéry L E van Bruggen
- Department of Pediatrics, School of Oncology and Reproduction (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
| | | | - Daan R M G Ophelders
- Department of Pediatrics, School of Oncology and Reproduction (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Reint K Jellema
- Department of Pediatrics, School of Oncology and Reproduction (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
- Department of Pediatrics, Maastricht University Medical Centre, 6229 ER Maastricht, The Netherlands
| | - Chris P M Reutelingsperger
- Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University Medical Center, 6200 MD Maastricht, The Netherlands
| | - Bart P F Rutten
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Tim G A M Wolfs
- Department of Pediatrics, School of Oncology and Reproduction (GROW), Maastricht University, 6229 ER Maastricht, The Netherlands
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Yamaguchi S, Yoshida M, Horie N, Satoh K, Fukuda Y, Ishizaka S, Ogawa K, Morofuji Y, Hiu T, Izumo T, Kawakami S, Nishida N, Matsuo T. Stem Cell Therapy for Acute/Subacute Ischemic Stroke with a Focus on Intraarterial Stem Cell Transplantation: From Basic Research to Clinical Trials. BIOENGINEERING (BASEL, SWITZERLAND) 2022; 10:bioengineering10010033. [PMID: 36671605 PMCID: PMC9854681 DOI: 10.3390/bioengineering10010033] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
Stem cell therapy for ischemic stroke holds great promise for the treatment of neurological impairment and has moved from the laboratory into early clinical trials. The mechanism of action of stem cell therapy includes the bystander effect and cell replacement. The bystander effect plays an important role in the acute to subacute phase, and cell replacement plays an important role in the subacute to chronic phase. Intraarterial (IA) transplantation is less invasive than intraparenchymal transplantation and can provide more cells in the affected brain region than intravenous transplantation. However, transplanted cell migration was reported to be insufficient, and few transplanted cells were retained in the brain for an extended period. Therefore, the bystander effect was considered the main mechanism of action of IA stem cell transplantation. In most clinical trials, IA transplantation was performed during the acute and subacute phases. Although clinical trials of IA transplantation demonstrated safety, they did not demonstrate satisfactory efficacy in improving patient outcomes. To increase efficacy, increased migration of transplanted cells and production of long surviving and effective stem cells would be crucial. Given the lack of knowledge on this subject, we review and summarize the mechanisms of action of transplanted stem cells and recent advancements in preclinical and clinical studies to provide information and guidance for further advancement of acute/subacute phase IA stem cell transplantation therapy for ischemic stroke.
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Affiliation(s)
- Susumu Yamaguchi
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
- Department of Neurosurgery, Sasebo General Hospital, Nagasaki 857-8511, Japan
- Correspondence: ; Tel.: +81-095-819-7375
| | - Michiharu Yoshida
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
- Department of Neurosurgery, Sasebo General Hospital, Nagasaki 857-8511, Japan
| | - Nobutaka Horie
- Department of Neurosurgery, Hiroshima University, Hiroshima 734-8551, Japan
| | - Katsuya Satoh
- Department of Occupational Therapy Sciences, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
| | - Yuutaka Fukuda
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
| | - Shunsuke Ishizaka
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
| | - Koki Ogawa
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan
| | - Yoichi Morofuji
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
| | - Takeshi Hiu
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
| | - Tsuyoshi Izumo
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
| | - Shigeru Kawakami
- Department of Pharmaceutical Informatics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8588, Japan
| | - Noriyuki Nishida
- Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8523, Japan
| | - Takayuki Matsuo
- Department of Neurosurgery, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8501, Japan
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9
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Zong J, He Q, Liu Y, Qiu M, Wu J, Hu B. Advances in the development of biodegradable coronary stents: A translational perspective. Mater Today Bio 2022; 16:100368. [PMID: 35937578 PMCID: PMC9352968 DOI: 10.1016/j.mtbio.2022.100368] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 06/25/2022] [Accepted: 07/13/2022] [Indexed: 11/17/2022] Open
Abstract
Implantation of cardiovascular stents is an important therapeutic method to treat coronary artery diseases. Bare-metal and drug-eluting stents show promising clinical outcomes, however, their permanent presence may create complications. In recent years, numerous preclinical and clinical trials have evaluated the properties of bioresorbable stents, including polymer and magnesium-based stents. Three-dimensional (3D) printed-shape-memory polymeric materials enable the self-deployment of stents and provide a novel approach for individualized treatment. Novel bioresorbable metallic stents such as iron- and zinc-based stents have also been investigated and refined. However, the development of novel bioresorbable stents accompanied by clinical translation remains time-consuming and challenging. This review comprehensively summarizes the development of bioresorbable stents based on their preclinical/clinical trials and highlights translational research as well as novel technologies for stents (e.g., bioresorbable electronic stents integrated with biosensors). These findings are expected to inspire the design of novel stents and optimization approaches to improve the efficacy of treatments for cardiovascular diseases. Bioresorbable stents can overcome the limitations of non-degradable stents. 3D printing of shape-memory polymeric stents can lead to better clinical outcomes. Advances in Mg-, Fe- and Zn-based stents from a translational perspective. Electronic stents integrated with biosensors can covey stent status in real time. Development in the assessment of stent performance in vivo.
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Affiliation(s)
- Jiabin Zong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Quanwei He
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuxiao Liu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Min Qiu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiehong Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Corresponding author.
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
- Corresponding author.
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10
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Britto DD, He J, Misa JP, Chen W, Kakadia PM, Grimm L, Herbert CD, Crosier KE, Crosier PS, Bohlander SK, Hogan BM, Hall CJ, Torres-Vázquez J, Astin JW. Plexin D1 negatively regulates zebrafish lymphatic development. Development 2022; 149:dev200560. [PMID: 36205097 PMCID: PMC9720674 DOI: 10.1242/dev.200560] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Lymphangiogenesis is a dynamic process that involves the directed migration of lymphatic endothelial cells (LECs) to form lymphatic vessels. The molecular mechanisms that underpin lymphatic vessel patterning are not fully elucidated and, to date, no global regulator of lymphatic vessel guidance is known. In this study, we identify the transmembrane cell signalling receptor Plexin D1 (Plxnd1) as a negative regulator of both lymphatic vessel guidance and lymphangiogenesis in zebrafish. plxnd1 is expressed in developing lymphatics and is required for the guidance of both the trunk and facial lymphatic networks. Loss of plxnd1 is associated with misguided intersegmental lymphatic vessel growth and aberrant facial lymphatic branches. Lymphatic guidance in the trunk is mediated, at least in part, by the Plxnd1 ligands, Semaphorin 3AA and Semaphorin 3C. Finally, we show that Plxnd1 normally antagonises Vegfr/Erk signalling to ensure the correct number of facial LECs and that loss of plxnd1 results in facial lymphatic hyperplasia. As a global negative regulator of lymphatic vessel development, the Sema/Plxnd1 signalling pathway is a potential therapeutic target for treating diseases associated with dysregulated lymphatic growth.
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Affiliation(s)
- Denver D. Britto
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Jia He
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - June P. Misa
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Wenxuan Chen
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Purvi M. Kakadia
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
- Leukaemia and Blood Cancer Research Unit, Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Lin Grimm
- Organogenesis and Cancer Program, Peter MacCallum Cancer Centre, Melbourne 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne 3010, Australia
- Department of Anatomy and Physiology, University of Melbourne, Melbourne 3010, Australia
| | - Caitlin D. Herbert
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Kathryn E. Crosier
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Philip S. Crosier
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Stefan K. Bohlander
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
- Leukaemia and Blood Cancer Research Unit, Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, The University of Auckland, Auckland 1023, New Zealand
| | - Benjamin M. Hogan
- Organogenesis and Cancer Program, Peter MacCallum Cancer Centre, Melbourne 3000, Australia
- Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne 3010, Australia
- Department of Anatomy and Physiology, University of Melbourne, Melbourne 3010, Australia
| | - Christopher J. Hall
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
| | - Jesús Torres-Vázquez
- Skirball Institute of Biomolecular Medicine, New York University Grossman School of Medicine, New York, NY 10016, USA
| | - Jonathan W. Astin
- Department of Molecular Medicine and Pathology, School of Medical Sciences, University of Auckland, Auckland 1023, New Zealand
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11
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Yin Z, Zhang J, Xu S, Liu J, Xu Y, Yu J, Zhao M, Pan W, Wang M, Wan J. The role of semaphorins in cardiovascular diseases: Potential therapeutic targets and novel biomarkers. FASEB J 2022; 36:e22509. [PMID: 36063107 DOI: 10.1096/fj.202200844r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/24/2022] [Accepted: 08/09/2022] [Indexed: 12/17/2022]
Abstract
Semaphorins (Semas), which belongs to the axonal guidance molecules, include 8 classes and could affect axon growth in the nervous system. Recently, semaphorins were found to regulate other pathophysiological processes, such as immune response, oncogenesis, tumor angiogenesis, and bone homeostasis, through binding with their plexin and neuropilin receptors. In this review, we summarized the detailed role of semaphorins and their receptors in the pathological progression of various cardiovascular diseases (CVDs), highlighting that semaphorins may be potential therapeutic targets and novel biomarkers for CVDs.
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Affiliation(s)
- Zheng Yin
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jishou Zhang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Shuwan Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jianfang Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Yao Xu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Junping Yu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Mengmeng Zhao
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Wei Pan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Menglong Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
| | - Jun Wan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China.,Cardiovascular Research Institute, Wuhan University, Wuhan, China.,Hubei Key Laboratory of Cardiology, Wuhan, China
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12
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Du H, Xu Y, Zhu L. Role of Semaphorins in Ischemic Stroke. Front Mol Neurosci 2022; 15:848506. [PMID: 35350431 PMCID: PMC8957939 DOI: 10.3389/fnmol.2022.848506] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/17/2022] [Indexed: 12/12/2022] Open
Abstract
Ischemic stroke is one of the major causes of neurological morbidity and mortality in the world. Although the management of ischemic stroke has been improved significantly, it still imposes a huge burden on the health and property. The integrity of the neurovascular unit (NVU) is closely related with the prognosis of ischemic stroke. Growing evidence has shown that semaphorins, a family of axon guidance cues, play a pivotal role in multiple pathophysiological processes in NVU after ischemia, such as regulating the immune system, angiogenesis, and neuroprotection. Modulating the NVU function via semaphorin signaling has a potential to develop a novel therapeutic strategy for ischemic stroke. We, therefore, review recent progresses on the role of semphorin family members in neurons, glial cells and vasculature after ischemic stroke.
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Affiliation(s)
- Huaping Du
- Department of Neurology, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China
| | - Yuan Xu
- Department of Neurology, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China
| | - Li Zhu
- Department of Neurology, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China
- Suzhou Key Laboratory of Thrombosis and Vascular Biology, Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Collaborative Innovation Center of Hematology of Jiangsu Province, National Clinical Research Center for Hematologic Diseases, Cyrus Tang Medical Institute, Soochow University, Suzhou, China
- *Correspondence: Li Zhu,
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13
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Effect of Pericytes on Cerebral Microvasculature at Different Time Points of Stroke. BIOMED RESEARCH INTERNATIONAL 2022; 2021:5281182. [PMID: 34977241 PMCID: PMC8716223 DOI: 10.1155/2021/5281182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 11/30/2021] [Indexed: 02/04/2023]
Abstract
Pericyte, as an important component of the blood-brain barrier, has received increasing attention in the study of cerebrovascular diseases. However, the mechanism of pericytes after the occurrence of cerebral ischemia is controversial. On the one hand, the expression of pericytes increases after cerebral ischemia, constricting the blood vessels to restrict blood supply and aggravating the damage caused by ischemia; on the other hand, pericytes participate in capillary angiogenesis in the ischemic area, which facilitates the repair of the ischemic injury area. The multifunctionality of pericytes is an important reason for this phenomenon, but the different time points of observation for the outcome indicators in each study are also an important factor that leads to the controversy of pericytes. Based on the review of a large database of original studies, the authors' team summarized the effects of pericytes on cerebral microvasculature at different time points after stroke, searched the possible markers, and explored possible therapeutic.
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14
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Qiu M, Zong JB, He QW, Liu YX, Wan Y, Li M, Zhou YF, Wu JH, Hu B. Cell Heterogeneity Uncovered by Single-Cell RNA Sequencing Offers Potential Therapeutic Targets for Ischemic Stroke. Aging Dis 2022; 13:1436-1454. [PMID: 36186129 PMCID: PMC9466965 DOI: 10.14336/ad.2022.0212] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Accepted: 02/12/2022] [Indexed: 11/06/2022] Open
Abstract
Ischemic stroke is a detrimental neurological disease characterized by an irreversible infarct core surrounded by an ischemic penumbra, a salvageable region of brain tissue. Unique roles of distinct brain cell subpopulations within the neurovascular unit and peripheral immune cells during ischemic stroke remain elusive due to the heterogeneity of cells in the brain. Single-cell RNA sequencing (scRNA-seq) allows for an unbiased determination of cellular heterogeneity at high-resolution and identification of cell markers, thereby unveiling the principal brain clusters within the cell-type-specific gene expression patterns as well as cell-specific subclusters and their functions in different pathways underlying ischemic stroke. In this review, we have summarized the changes in differentiation trajectories of distinct cell types and highlighted the specific pathways and genes in brain cells that are impacted by stroke. This review is expected to inspire new research and provide directions for investigating the potential pathological mechanisms and novel treatment strategies for ischemic stroke at the level of a single cell.
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Affiliation(s)
| | | | | | | | | | | | | | - Jie-hong Wu
- Correspondence should be addressed to: Dr. Bo Hu () and Dr. Jie-hong Wu (), Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Hu
- Correspondence should be addressed to: Dr. Bo Hu () and Dr. Jie-hong Wu (), Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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15
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Yang H, Luo Y, Hu H, Yang S, Li Y, Jin H, Chen S, He Q, Hong C, Wu J, Wan Y, Li M, Li Z, Yang X, Su Y, Zhou Y, Hu B. pH-Sensitive, Cerebral Vasculature-Targeting Hydroxyethyl Starch Functionalized Nanoparticles for Improved Angiogenesis and Neurological Function Recovery in Ischemic Stroke. Adv Healthc Mater 2021; 10:e2100028. [PMID: 34028998 DOI: 10.1002/adhm.202100028] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/16/2021] [Indexed: 01/17/2023]
Abstract
Angiogenesis, an essential restorative process following ischemia, is a promising therapeutic approach to improve neurological deficits. However, overcoming the blood-brain barrier (BBB) and effective drug enrichment are challenges for conventional drug delivery methods, which has limited the development of treatment strategies. Herein, a dual-targeted therapeutic strategy is reported to enable pH-sensitive drug release and allow cerebral ischemia targeting to improve stroke therapeutic efficacy. Targeted delivery is achieved by surface conjugation of Pro-His-Ser-Arg-Asn (PHSRN) peptides, which binds to integrin α5 β1 enriched in the cerebral vasculature of ischemic tissue. Subsequently, smoothened agonist (SAG), an activator of sonic hedgehog (Shh) signaling, is coupled to PHSRN-HES by pH-dependent electrostatic adsorption. SAG@PHSRN-HES nanoparticles can sensitively release more SAG in the acidic environment of ischemic brain tissue. More importantly, SAG@PHSRN-HES exerts the synergistic mechanisms of PHSRN and SAG to promote angiogenesis and BBB integrity, thus improving neuroplasticity and neurological function recovery. This study proposes a new approach to improve the delivery of medications in the ischemic brain. Dual-targeted therapeutic strategies have excellent potential to treat patients suffering from cerebral infarction.
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Affiliation(s)
- Hang Yang
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Yan Luo
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Hang Hu
- School of Pharmacy Changzhou University Changzhou 213164 P. R. China
| | - Sibo Yang
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Yanan Li
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Huijuan Jin
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Shengcai Chen
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Quanwei He
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Candong Hong
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Jiehong Wu
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Yan Wan
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Man Li
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Zifu Li
- National Engineering Research Center for Nanomedicine College of Life Science and Technology Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Xiangliang Yang
- National Engineering Research Center for Nanomedicine College of Life Science and Technology Huazhong University of Science and Technology Wuhan 430074 P. R. China
| | - Ying Su
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Yifan Zhou
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
| | - Bo Hu
- Department of Neurology Union Hospital Tongji Medical College Huazhong University of Science and Technology Wuhan 430022 China
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16
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Yu R, Kim NS, Li Y, Jeong JY, Park SJ, Zhou B, Oh WJ. Vascular Sema3E-Plexin-D1 Signaling Reactivation Promotes Post-stroke Recovery through VEGF Downregulation in Mice. Transl Stroke Res 2021; 13:142-159. [PMID: 33978913 PMCID: PMC8766426 DOI: 10.1007/s12975-021-00914-4] [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: 11/24/2020] [Revised: 04/21/2021] [Accepted: 04/26/2021] [Indexed: 12/18/2022]
Abstract
Post-stroke vascular remodeling, including angiogenesis, facilitates functional recovery. Proper vascular repair is important for efficient post-stroke recovery; however, the underlying mechanisms coordinating the diverse signaling pathways involved in vascular remodeling remain largely unknown. Recently, axon guidance molecules were revealed as key players in injured vessel remodeling. One such molecule, Semaphorin 3E (Sema3E), and its receptor, Plexin-D1, control vascular development by regulating vascular endothelial growth factor (VEGF) signaling. In this study, using a mouse model of transient brain infarction, we aimed to investigate whether Sema3E-Plexin-D1 signaling was involved in cerebrovascular remodeling after ischemic injury. We found that ischemic damage rapidly induced Sema3e expression in the neurons of peri-infarct regions, followed by Plexin-D1 upregulation in remodeling vessels. Interestingly, Plexin-D1 reemergence was concurrent with brain vessels entering an active angiogenic process. In line with this, Plxnd1 ablation worsened neurological deficits, infarct volume, neuronal survival rate, and blood flow recovery. Furthermore, reduced and abnormal vascular morphogenesis was caused by aberrantly increased VEGF signaling. In Plxnd1 knockout mice, we observed significant extravasation of intravenously administered tracers in the brain parenchyma, junctional protein downregulation, and mislocalization in regenerating vessels. This suggested that the absence of Sema3E-Plexin-D1 signaling is associated with blood–brain barrier (BBB) impairment. Finally, the abnormal behavioral performance, aberrant vascular phenotype, and BBB breakdown defects in Plxnd1 knockout mice were restored following the inhibition of VEGF signaling during vascular remodeling. These findings demonstrate that Sema3E-Plexin-D1 signaling can promote functional recovery by downregulating VEGF signaling in the injured adult brain.
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Affiliation(s)
- Ri Yu
- Neurovascular Biology Laboratory, Neurovascular Unit Research Group, Korea Brain Research Institute, Daegu, 41062, Republic of Korea.,College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Nam-Suk Kim
- Neurovascular Biology Laboratory, Neurovascular Unit Research Group, Korea Brain Research Institute, Daegu, 41062, Republic of Korea
| | - Yan Li
- Neurovascular Biology Laboratory, Neurovascular Unit Research Group, Korea Brain Research Institute, Daegu, 41062, Republic of Korea
| | - Jin-Young Jeong
- Neurovascular Biology Laboratory, Neurovascular Unit Research Group, Korea Brain Research Institute, Daegu, 41062, Republic of Korea.,Department of Brain and Cognitive Sciences, Daegu Gyeongbuk Institute of Science and Technology, Daegu, 42988, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Bin Zhou
- Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 200031, China
| | - Won-Jong Oh
- Neurovascular Biology Laboratory, Neurovascular Unit Research Group, Korea Brain Research Institute, Daegu, 41062, Republic of Korea.
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17
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Ithal D, Sukumaran SK, Bhattacharjee D, Vemula A, Nadella R, Mahadevan J, Sud R, Viswanath B, Purushottam M, Jain S. Exome hits demystified: The next frontier. Asian J Psychiatr 2021; 59:102640. [PMID: 33892377 DOI: 10.1016/j.ajp.2021.102640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/26/2021] [Indexed: 12/13/2022]
Abstract
Severe mental illnesses such as schizophrenia and bipolar disorder have complex inheritance patterns, involving both common and rare variants. Whole exome sequencing is a promising approach to find out the rare genetic variants. We had previously reported several rare variants in multiplex families with severe mental illnesses. The current article tries to summarise the biological processes and pattern of expression of genes harbouring the aforementioned variants, linking them to known clinical manifestations through a methodical narrative review. Of the 28 genes considered for this review from 7 families with multiple affected individuals, 6 genes are implicated in various neuropsychiatric manifestations including some variations in the brain morphology assessed by magnetic resonance imaging. Another 15 genes, though associated with neuropsychiatric manifestations, did not have established brain morphological changes whereas the remaining 7 genes did not have any previously recorded neuropsychiatric manifestations at all. Wnt/b-catenin signaling pathway was associated with 6 of these genes and PI3K/AKT, calcium signaling, ERK, RhoA and notch signaling pathways had at least 2 gene associations. We present a comprehensive review of biological and clinical knowledge about the genes previously reported in multiplex families with severe mental illness. A 'disease in dish approach' can be helpful to further explore the fundamental mechanisms.
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Affiliation(s)
- Dhruva Ithal
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Salil K Sukumaran
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Debanjan Bhattacharjee
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Alekhya Vemula
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Ravi Nadella
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Jayant Mahadevan
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Reeteka Sud
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Biju Viswanath
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
| | - Meera Purushottam
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India.
| | - Sanjeev Jain
- Department of Psychiatry, National Institute of Mental Health and Neuro Sciences, Bengaluru, Karnataka, India
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18
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Zhang YF, Zhang Y, Jia DD, Yang HY, Cheng MD, Zhu WX, Xin H, Li PF, Zhang YF. Insights into the regulatory role of Plexin D1 signalling in cardiovascular development and diseases. J Cell Mol Med 2021; 25:4183-4194. [PMID: 33837646 PMCID: PMC8093976 DOI: 10.1111/jcmm.16509] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/04/2021] [Accepted: 03/22/2021] [Indexed: 12/30/2022] Open
Abstract
Plexin D1 (PLXND1), which was previously thought to mediate semaphorin signalling, belongs to the Plexin family of transmembrane proteins. PLXND1 cooperates mostly with the coreceptor neuropilin and participates in many aspects of axonal guidance. PLXND1 can also act as both a tumour promoter and a tumour suppressor. Emerging evidence suggests that mutations in PLXND1 or Semaphorin 3E, the canonical ligand of PLXND1, can lead to serious cardiovascular diseases, such as congenital heart defects, CHARGE syndrome and systemic sclerosis. Upon ligand binding, PLXND1 can act as a GTPase‐activating protein (GAP) and modulate integrin‐mediated cell adhesion, cytoskeletal dynamics and cell migration. These effects may play regulatory roles in the development of the cardiovascular system and disease. The cardiovascular effects of PLXND1 signalling have gradually been elucidated. PLXND1 was recently shown to detect physical forces and translate them into intracellular biochemical signals in the context of atherosclerosis. Therefore, the role of PLXND1 in cardiovascular development and diseases is gaining research interest because of its potential as a biomarker and therapeutic target. In this review, we describe the cardiac effects, vascular effects and possible molecular mechanisms of PLXND1 signalling.
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Affiliation(s)
- Yi-Fei Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Yu Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Dong-Dong Jia
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Hong-Yu Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Meng-Die Cheng
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Wen-Xiu Zhu
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Hui Xin
- Department of Cardiology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Pei-Feng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
| | - Yin-Feng Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, China
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19
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Jiao B, Liu S, Tan X, Lu P, Wang D, Xu H. Class-3 semaphorins: Potent multifunctional modulators for angiogenesis-associated diseases. Biomed Pharmacother 2021; 137:111329. [PMID: 33545660 DOI: 10.1016/j.biopha.2021.111329] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 01/18/2021] [Accepted: 01/25/2021] [Indexed: 11/29/2022] Open
Abstract
Semaphorins, the neuronal guidance cues, were shown to have broad influences on pathophysiological processes such as bone remodeling, immune responses, and angiogenesis. In particular, Class-3 Semaphorins (SEMA3) is considered a vital regulator involved in angiogenesis. Scientific evidence has pointed to the role of angiogenesis in many diseases, and numerous efforts have been made to explore the possibilities of curing those diseases by targeting angiogenesis. Nevertheless, the efficacies are limited owing to the complex mechanisms of angiogenesis. Hence, investigating the mechanisms of SEMA3 in angiogenesis may contribute to novel therapeutics for diseases. Previous reviews mainly focused on the various functions of semaphorins in one particular disease, and the specific angiogenesis mechanism of SEMA3 in diverse diseases has not been well elucidated. Additionally, the role of SEMA3 in angiogenesis remains elusive, as contradicting results have been found in different disease types. Some evidence from recent studies implies that, while most SEMA3 molecules inhibit pathological angiogenesis in different diseases, occasionally SEMA3 may also promote angiogenesis. This review summarizes the specific role of SEMA3 in a variety of angiogenesis-associated diseases, and documents SEMA3 may be a promising therapeutic target for treating angiogenesis-associated diseases.
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Affiliation(s)
- Bo Jiao
- Department of Anesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Shiyang Liu
- Department of Thyroid and Breast Surgery, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xi Tan
- Department of Anesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Pei Lu
- Department of Anesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Danning Wang
- Department of Anesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hui Xu
- Department of Anesthesiology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
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20
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Fehlmann T, Lehallier B, Schaum N, Hahn O, Kahraman M, Li Y, Grammes N, Geffers L, Backes C, Balling R, Kern F, Krüger R, Lammert F, Ludwig N, Meder B, Fromm B, Maetzler W, Berg D, Brockmann K, Deuschle C, von Thaler AK, Eschweiler GW, Milman S, Barziliai N, Reichert M, Wyss-Coray T, Meese E, Keller A. Common diseases alter the physiological age-related blood microRNA profile. Nat Commun 2020; 11:5958. [PMID: 33235214 PMCID: PMC7686493 DOI: 10.1038/s41467-020-19665-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 10/16/2020] [Indexed: 02/07/2023] Open
Abstract
Aging is a key risk factor for chronic diseases of the elderly. MicroRNAs regulate post-transcriptional gene silencing through base-pair binding on their target mRNAs. We identified nonlinear changes in age-related microRNAs by analyzing whole blood from 1334 healthy individuals. We observed a larger influence of the age as compared to the sex and provide evidence for a shift to the 5' mature form of miRNAs in healthy aging. The addition of 3059 diseased patients uncovered pan-disease and disease-specific alterations in aging profiles. Disease biomarker sets for all diseases were different between young and old patients. Computational deconvolution of whole-blood miRNAs into blood cell types suggests that cell intrinsic gene expression changes may impart greater significance than cell abundance changes to the whole blood miRNA profile. Altogether, these data provide a foundation for understanding the relationship between healthy aging and disease, and for the development of age-specific disease biomarkers.
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Affiliation(s)
- Tobias Fehlmann
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Benoit Lehallier
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, 94305, USA
| | - Nicholas Schaum
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, 94305, USA
| | - Oliver Hahn
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, 94305, USA
| | - Mustafa Kahraman
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Yongping Li
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Nadja Grammes
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Lars Geffers
- Luxembourg Center for Systems Biomedicine, 4362, Esch-sur-Alzette, Luxemburg
| | - Christina Backes
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Rudi Balling
- Luxembourg Center for Systems Biomedicine, 4362, Esch-sur-Alzette, Luxemburg
- Transversal Translational Medicine, Luxembourg Institute of Health (LIH), 1445, Strassen, Luxemburg
- Parkinson Research Clinic, Centre Hospitalier de Luxembourg, 1210, Luxembourg, Luxemburg
| | - Fabian Kern
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany
| | - Rejko Krüger
- Luxembourg Center for Systems Biomedicine, 4362, Esch-sur-Alzette, Luxemburg
- Transversal Translational Medicine, Luxembourg Institute of Health (LIH), 1445, Strassen, Luxemburg
- Parkinson Research Clinic, Centre Hospitalier de Luxembourg, 1210, Luxembourg, Luxemburg
| | - Frank Lammert
- Internal Medicine, Saarland University, 66421, Homburg, Germany
| | - Nicole Ludwig
- Human Genetics, Saarland University, 66421, Homburg, Germany
| | - Benjamin Meder
- Internal Medicine, University Hospital Heidelberg, 69120, Heidelberg, Germany
| | - Bastian Fromm
- Department of Molecular Biosciences, Stockholm University, 11418, Stockholm, Sweden
| | - Walter Maetzler
- Department of Neurology, Christian-Albrechts-Universität zu Kiel, 24105, Kiel, Germany
| | - Daniela Berg
- Department of Neurology, Christian-Albrechts-Universität zu Kiel, 24105, Kiel, Germany
| | | | | | | | - Gerhard W Eschweiler
- Geriatric Center and the Department of Psychiatry and Psychotherapy, University Hospital Tübingen, 72076, Tübingen, Germany
| | - Sofiya Milman
- The Institute for Aging Research, Albert Einstein College of Medicine, New York, NY, 10461, USA
| | - Nir Barziliai
- The Institute for Aging Research, Albert Einstein College of Medicine, New York, NY, 10461, USA
| | | | - Tony Wyss-Coray
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, 94305, USA
| | - Eckart Meese
- Human Genetics, Saarland University, 66421, Homburg, Germany
| | - Andreas Keller
- Chair for Clinical Bioinformatics, Saarland University, 66123, Saarbrücken, Germany.
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, 94305, USA.
- Center for Bioinformatics, Saarland Informatics Campus, Saarland University, 66123, Saarbrücken, Germany.
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21
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The role of semaphorins in small vessels of the eye and brain. Pharmacol Res 2020; 160:105044. [PMID: 32590102 DOI: 10.1016/j.phrs.2020.105044] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 06/19/2020] [Accepted: 06/19/2020] [Indexed: 12/20/2022]
Abstract
Small vessel diseases, such as ischemic retinopathy and cerebral small vessel disease (CSVD), are increasingly recognized in patients with diabetes, dementia and cerebrovascular disease. The mechanisms of small vessel diseases are poorly understood, but the latest studies suggest a role for semaphorins. Initially identified as axon guidance cues, semaphorins are mainly studied in neuronal morphogenesis, neural circuit assembly, and synapse assembly and refinement. In recent years, semaphorins have been found to play important roles in regulating vascular growth and development and in many pathophysiological processes, including atherosclerosis, angiogenesis after stroke and retinopathy. Growing evidence indicates that semaphorins affect the occurrence, perfusion and regression of both the macrovasculature and microvasculature by regulating the proliferation, apoptosis, migration, barrier function and inflammatory response of endothelial cells, vascular smooth muscle cells (VSMCs) and pericytes. In this review, we concentrate on the regulatory effects of semaphorins on the cell components of the vessel wall and their potential roles in microvascular diseases, especially in the retina and cerebral small vessel. Finally, we discuss potential molecular approaches in targeting semaphorins as therapies for microvascular disorders in the eye and brain.
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22
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Pénzes M, Túrós D, Máthé D, Szigeti K, Hegedűs N, Rauscher AÁ, Tóth P, Ivic I, Padmanabhan P, Pál G, Dobolyi Á, Gyimesi M, Málnási-Csizmadia A. Direct myosin-2 inhibition enhances cerebral perfusion resulting in functional improvement after ischemic stroke. Theranostics 2020; 10:5341-5356. [PMID: 32373216 PMCID: PMC7196296 DOI: 10.7150/thno.42077] [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: 11/13/2019] [Accepted: 02/03/2020] [Indexed: 12/29/2022] Open
Abstract
Acute ischemic stroke treatment faces an unresolved obstacle as capillary reperfusion remains insufficient after thrombolysis and thrombectomy causing neuronal damage and poor prognosis. Hypoxia-induced capillary constriction is mediated by actomyosin contraction in precapillary smooth muscle cells (SMCs) therefore smooth muscle myosin-2 could be an ideal target with potentially high impact on reperfusion of capillaries. Methods: The myosin-2 inhibitor para-aminoblebbistatin (AmBleb) was tested on isolated human and rat arterioles to assess the effect of AmBleb on vasodilatation. Transient middle cerebral artery occlusion (MCAO) was performed on 38 male Wistar rats followed by local administration of AmBleb into the ischemic brain area. Development of brain edema and changes in cerebrovascular blood flow were assessed using MRI and SPECT. We also tested the neurological deficit scores and locomotor asymmetry of the animals for 3 weeks after the MCAO operation. Results: Our results demonstrate that AmBleb could achieve full relaxation of isolated cerebral arterioles. In living animals AmBleb recovered cerebral blood flow in 32 out of the 65 affected functional brain areas in MCAO operated rats, whereas only 8 out of the 67 affected areas were recovered in the control animals. Animals treated with AmBleb also showed significantly improved general and focal deficit scores in neurological functional tests and showed significantly ameliorated locomotor asymmetry. Conclusion: Direct inhibition of smooth muscle myosin by AmBleb in pre-capillary SMCs significantly contribute to the improvement of cerebral blood reperfusion and brain functions suggesting that smooth muscle myosin inhibition may have promising potential in stroke therapies as a follow-up treatment of physical or chemical removal of the occluding thrombus.
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23
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Zhang Y, Zhang X, Wei Q, Leng S, Li C, Han B, Bai Y, Zhang H, Yao H. Activation of Sigma-1 Receptor Enhanced Pericyte Survival via the Interplay Between Apoptosis and Autophagy: Implications for Blood-Brain Barrier Integrity in Stroke. Transl Stroke Res 2020; 11:267-287. [PMID: 31290080 DOI: 10.1007/s12975-019-00711-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 05/21/2019] [Accepted: 06/06/2019] [Indexed: 02/07/2023]
Abstract
Stroke is a cerebrovascular disorder that affects many people worldwide. Pericytes play an important role in stroke progression and recovery. The sigma-1 receptor (σ-1R) signaling pathway has been suggested as having promising neuroprotective potential in treating stroke; however, whether σ-1R activation regulates pericyte function remains unknown. The aim of this study was to elucidate the role of σ-1R and a novel σ-1R agonist in pericytes following ischemic stroke. An ischemic stroke animal model was induced by photothrombotic middle cerebral artery occlusion (pMCAO) in σ-1R knockout (KO) and wild-type (WT) mice. After pMCAO, there was significant pericyte loss and coverage in σ-1R KO mice compared with WT mice as determined using transmission electron microscopy, immunofluorescence staining, and western blot. Interestingly, a novel σ-1R agonist decreased infarct volume and blood-brain barrier damage with a concomitant amelioration of pericyte loss, as determined by western blot. Further studies indicated that cell apoptosis and autophagy were induced in an in vivo pMCAO ischemic stroke animal model and an in vitro oxygen glucose deprivation-treatment group. Inhibition of autophagy using a pharmacological approach significantly mitigated pericyte apoptosis, suggesting that autophagy was upstream of apoptosis in pericytes. Both in vivo and in vitro studies indicated that the σ-1R agonist significantly decreased cell apoptosis via inhibition of autophagy with a subsequent enhancement of pericyte survival. This study identified the unique roles for σ-1R in mediating pericyte survival via the regulation of the interplay between apoptosis and autophagy, suggesting that a novel σ-1R agonist may be a promising therapeutic agent for the treatment of stroke patients.
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Affiliation(s)
- Yuan Zhang
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China.
| | | | - Qiangqiang Wei
- Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China
| | - Shuo Leng
- Center of Interventional Radiology and Vascular Surgery, Department of Radiology, Zhongda Hospital, Medical School, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Cai Li
- Department of Neurology, Rizhao Hospital of Traditional Chinese Medicine, Rizhao, 276800, Shandong, China
| | - Bing Han
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Ying Bai
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Huibin Zhang
- Center of Drug Discovery, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, Jiangsu, China.
| | - Honghong Yao
- Department of Pharmacology, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China.
- Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, 210096, Jiangsu, China.
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24
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Refueling the Ischemic CNS: Guidance Molecules for Vascular Repair. Trends Neurosci 2019; 42:644-656. [PMID: 31285047 DOI: 10.1016/j.tins.2019.05.006] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/09/2019] [Accepted: 05/20/2019] [Indexed: 12/30/2022]
Abstract
Stroke patients have only limited therapeutic options and often remain with considerable disabilities. To promote neurological recovery, angiogenesis in the ischemic peri-infarct region has been recognized as an encouraging therapeutic target. Despite advances in mechanistic understanding of vascular growth and repair, effective and safe angiogenic treatments are currently missing. Besides the most intensively studied angiogenic growth factors, recent research has indicated that the process of vascular sprouting and migration also requires the participation of guidance molecules, many of which were initially identified as regulators of axonal growth. Here, we review the inhibitory and growth-promoting effects of guidance molecules on the vascular system and discuss their potential as novel angiogenic targets for neurovascular diseases.
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25
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Guedes RCA, Abadie-Guedes R. Brain Aging and Electrophysiological Signaling: Revisiting the Spreading Depression Model. Front Aging Neurosci 2019; 11:136. [PMID: 31231207 PMCID: PMC6567796 DOI: 10.3389/fnagi.2019.00136] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 05/21/2019] [Indexed: 12/31/2022] Open
Abstract
As a consequence of worldwide improvement in health care, the aging portion of the human population has increased, now representing a higher proportion of the total population. This fact raises great concern regarding how to age while maintaining good brain function. Very often, alterations in brain electrophysiological signaling are associated with age-dependent functional disorders of the brain. Therefore, animal models suitable for the study of age-related changes in electrical activity of the brain can be very useful. Herein, we review changes in brain electrophysiological features as a function of age by analyzing studies in the rat brain on the phenomenon known as cortical spreading depression (CSD). Alterations in the brain’s capability to generate and propagate CSD may be related to differences in the propensity to develop certain neurological diseases, such as epilepsy, stroke, and migraine, which can biunivocally interact with the aging process. In this review, we revisit ours and others’ previous studies on electrophysiological features of the CSD phenomenon, such as its velocity of propagation and amplitude and duration of its slow negative DC shift, as a function of the animal age, as well as the interaction between age and other factors, such as ethanol consumption, physical exercise, and nutritional status. In addition, we discuss one relatively new feature through which CSD modulates brain signaling: the ability to potentiate the brain’s spontaneous electrical activity. We conclude that the CSD model might importantly contribute to a better understanding of the aging/brain signaling relationship.
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Affiliation(s)
| | - Ricardo Abadie-Guedes
- Departamento de Fisiologia e Farmacologia, Universidade Federal de Pernambuco, Recife, Brazil
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26
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Zhou YF, Chen AQ, Wu JH, Mao L, Xia YP, Jin HJ, He QW, Miao QR, Yue ZY, Liu XL, Huang M, Li YN, Hu B. Sema3E/PlexinD1 signaling inhibits postischemic angiogenesis by regulating endothelial DLL4 and filopodia formation in a rat model of ischemic stroke. FASEB J 2019; 33:4947-4961. [PMID: 30653356 DOI: 10.1096/fj.201801706rr] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Angiogenesis is a crucial defense response to hypoxia that regulates the process of raising the promise of long-term neurologic recovery during the management of stroke. A high expression of antiangiogenic factors leads to the loss of neovascularization capacity in pathologic conditions. We have previously documented an impairment of the cerebral vessel perfusion and neovascularization in the cortex neighboring the stroke-induced lesion, which was accompanied by an activation of semaphorin 3E (Sema3E)/PlexinD1 after ischemic stroke. In this study, we employed micro-optical sectioning tomography to fully investigate the details of the vascular pattern, including the capillaries. We found that after transient middle cerebral artery occlusion, inhibiting PlexinD1 signaling led to an organized recovery of the vascular network in the ischemic area. We then further explored the possible mechanisms. In vivo, Sema3E substantially decreased dynamic delta-like 4 (DLL4) expression. In cultured brain microvascular endothelial cells, Sema3E down-regulated DLL4 expression via inhibiting Ras-related C3 botulinum toxin substrate 1-induced JNK phosphorylation. At the microcosmic level, Sema3E/PlexinD1 signaling promoted F-actin disassembly and focal adhesion reduction by activating the small guanosine triphosphatase Ras homolog family member J by releasing RhoGEF Tuba from direct binding to PlexinD1, thus mediating endothelial cell motility and filopodia retraction. Our study reveals that Sema3E/PlexinD1 signaling, which suppressed endothelial DLL4 expression, cell motility, and filopodia formation, is expected to be a novel druggable target for angiogenesis during poststroke progression.-Zhou, Y.-F., Chen, A.-Q., Wu, J.-H., Mao, L., Xia, Y.-P., Jin, H.-J., He, Q.-W., Miao, Q. R., Yue, Z.-Y., Liu, X.-L., Huang, M., Li, Y.-N., Hu, B. Sema3E/PlexinD1 signaling inhibits postischemic angiogenesis by regulating endothelial DLL4 and filopodia formation in a rat model of ischemic stroke.
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Affiliation(s)
- Yi-Fan Zhou
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - An-Qi Chen
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jie-Hong Wu
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Mao
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan-Peng Xia
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui-Juan Jin
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Quan-Wei He
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Robert Miao
- Division of Pediatric Surgery, Department of Surgery, Children's Research Institute-Medical College of Wisconsin, Milwaukee, Wisconsin, USA.,Division of Pediatric Pathology, Department of Pathology, Children's Research Institute-Medical College of Wisconsin, Milwaukee, Wisconsin, USA.,Department of Pharmacology and Toxicology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Zhen-Yu Yue
- Department of Neurology, The Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA.,Department of Neuroscience, The Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Xiu-Li Liu
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics-Huazhong University of Science and Technology, Wuhan, China.,Department of Biomedical Engineering, Ministry of Education Key Laboratory for Biomedical Photonics-Huazhong University of Science and Technology, Wuhan, China; and
| | - Ming Huang
- Department of Neurology, the People's Hospital of China Three Gorges University, Institute of Translational Neuroscience, Three Gorges University College of Medicine, Yichang, China
| | - Ya-Nan Li
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bo Hu
- Department of Neurology, Union Hospital-Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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27
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Wu JH, Zhou YF, Hong CD, Chen AQ, Luo Y, Mao L, Xia YP, He QW, Jin HJ, Huang M, Li YN, Hu B. Semaphorin-3A protects against neointimal hyperplasia after vascular injury. EBioMedicine 2018; 39:95-108. [PMID: 30579864 PMCID: PMC6355729 DOI: 10.1016/j.ebiom.2018.12.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 12/12/2018] [Accepted: 12/12/2018] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Neointimal hyperplasia is a prominent pathological event during in-stent restenosis. Phenotype switching of vascular smooth muscle cells (VSMCs) from a differentiated/contractile to a dedifferentiated/synthetic phenotype, accompanied by migration and proliferation of VSMCs play an important role in neointimal hyperplasia. However, the molecular mechanisms underlying phenotype switching of VSMCs have yet to be fully understood. METHODS The mouse carotid artery ligation model was established to evaluate Sema3A expression and its role during neointimal hyperplasia in vivo. Bioinformatics analysis, chromatin immunoprecipitation (ChIP) assays and promoter-luciferase reporter assays were used to examine regulatory mechanism of Sema3A expression. SiRNA transfection and lentivirus infection were performed to regulate Sema3A expression. EdU assays, Wound-healing scratch experiments and Transwell migration assays were used to assess VSMC proliferation and migration. FINDINGS In this study, we found that semaphorin-3A (Sema3A) was significantly downregulated in VSMCs during neointimal hyperplasia after vascular injury in mice and in human atherosclerotic plaques. Meanwhile, Sema3A was transcriptionally downregulated by PDGF-BB via p53 in VSMCs. Furthermore, we found that overexpression of Sema3A inhibited VSMC proliferation and migration, as well as increasing differentiated gene expression. Mechanistically, Sema3A increased the NRP1-plexin-A1 complex and decreased the NRP1-PDGFRβ complex, thus inhibiting phosphorylation of PDGFRβ. Moreover, we found that overexpression of Sema3A suppressed neointimal hyperplasia after vascular injury in vivo. INTERPRETATION These results suggest that local delivery of Sema3A may act as a novel therapeutic option to prevent in-stent restenosis.
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Affiliation(s)
- Jie-Hong Wu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi-Fan Zhou
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Can-Dong Hong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - An-Qi Chen
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Luo
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Mao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan-Peng Xia
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Quan-Wei He
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hui-Juan Jin
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ming Huang
- Department of Neurology, the People's Hospital of China Three Gorges University, Institute of Translational Neuroscience, Three Gorges University College of Medicine, Yichang 443002, China
| | - Ya-Nan Li
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Bo Hu
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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