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Kong Y, Wang D, Jin X, Liu Y, Xu H. Unveiling the significance of TREM1/2 in hemorrhagic stroke: structure, function, and therapeutic implications. Front Neurol 2024; 15:1334786. [PMID: 38385036 PMCID: PMC10879330 DOI: 10.3389/fneur.2024.1334786] [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: 11/23/2023] [Accepted: 01/23/2024] [Indexed: 02/23/2024] Open
Abstract
Stroke has long been a major threat to human health worldwide. Hemorrhagic stroke, including intracerebral hemorrhage and subarachnoid hemorrhage, exhibits a high incidence rate and a high mortality and disability rate, imposing a substantial burden on both public health and the economy and society. In recent years, the triggering receptor expressed on myeloid cells (TREM) family has garnered extensive attention in various pathological conditions, including hemorrhagic stroke. This review comprehensively summarizes the structure and function of TREM1/2, as well as their roles and potential mechanisms in hemorrhagic stroke, with the aim of providing guidance for the development of targeted therapeutic strategies in the future.
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Affiliation(s)
- Yancheng Kong
- Trauma Emergency Center, Changzhou Hospital of Traditional Chinese Medicine, Changzhou, China
| | - Di Wang
- Trauma Emergency Center, Changzhou Hospital of Traditional Chinese Medicine, Changzhou, China
| | - Xu Jin
- Changzhou Hospital Affiliated to Nanjing University of Chinese Medicine, Changzhou, China
| | - Yi Liu
- Trauma Emergency Center, Changzhou Hospital of Traditional Chinese Medicine, Changzhou, China
| | - Hui Xu
- Trauma Emergency Center, Changzhou Hospital of Traditional Chinese Medicine, Changzhou, China
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2
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Belloso-Iguerategui A, Zamarbide M, Merino-Galan L, Rodríguez-Chinchilla T, Gago B, Santamaria E, Fernández-Irigoyen J, Cotman CW, Prieto GA, Quiroga-Varela A, Rodríguez-Oroz MC. Hippocampal synaptic failure is an early event in experimental parkinsonism with subtle cognitive deficit. Brain 2023; 146:4949-4963. [PMID: 37403195 PMCID: PMC10690043 DOI: 10.1093/brain/awad227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/25/2023] [Accepted: 06/20/2023] [Indexed: 07/06/2023] Open
Abstract
Learning and memory mainly rely on correct synaptic function in the hippocampus and other brain regions. In Parkinson's disease, subtle cognitive deficits may even precede motor signs early in the disease. Hence, we set out to unravel the earliest hippocampal synaptic alterations associated with human α-synuclein overexpression prior to and soon after the appearance of cognitive deficits in a parkinsonism model. We bilaterally injected adeno-associated viral vectors encoding A53T-mutated human α-synuclein into the substantia nigra of rats, and evaluated them 1, 2, 4 and 16 weeks post-inoculation by immunohistochemistry and immunofluorescence to study degeneration and distribution of α-synuclein in the midbrain and hippocampus. The object location test was used to evaluate hippocampal-dependent memory. Sequential window acquisition of all theoretical mass spectrometry-based proteomics and fluorescence analysis of single-synapse long-term potentiation were used to study alterations to protein composition and plasticity in isolated hippocampal synapses. The effect of L-DOPA and pramipexole on long-term potentiation was also tested. Human α-synuclein was found within dopaminergic and glutamatergic neurons of the ventral tegmental area, and in dopaminergic, glutamatergic and GABAergic axon terminals in the hippocampus from 1 week post-inoculation, concomitant with mild dopaminergic degeneration in the ventral tegmental area. In the hippocampus, differential expression of proteins involved in synaptic vesicle cycling, neurotransmitter release and receptor trafficking, together with impaired long-term potentiation were the first events observed (1 week post-inoculation), preceding cognitive deficits (4 weeks post-inoculation). Later on, at 16 weeks post-inoculation, there was a deregulation of proteins involved in synaptic function, particularly those involved in the regulation of membrane potential, ion balance and receptor signalling. Hippocampal long-term potentiation was impaired before and soon after the onset of cognitive deficits, at 1 and 4 weeks post-inoculation, respectively. L-DOPA recovered hippocampal long-term potentiation more efficiently at 4 weeks post-inoculation than pramipexole, which partially rescued it at both time points. Overall, we found impaired synaptic plasticity and proteome dysregulation at hippocampal terminals to be the first events that contribute to the development of cognitive deficits in experimental parkinsonism. Our results not only point to dopaminergic but also to glutamatergic and GABAergic dysfunction, highlighting the relevance of the three neurotransmitter systems in the ventral tegmental area-hippocampus interaction from the earliest stages of parkinsonism. The proteins identified in the current work may constitute potential biomarkers of early synaptic damage in the hippocampus and hence, therapies targeting these could potentially restore early synaptic malfunction and consequently, cognitive deficits in Parkinson's disease.
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Affiliation(s)
| | - Marta Zamarbide
- Neuroscience Program, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain
| | - Leyre Merino-Galan
- Neuroscience Program, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain
- Neuroscience Department, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain
| | | | - Belén Gago
- Faculty of Medicine, IBIMA Plataforma BIONAND, Universidad de Málaga, 29016 Málaga, Spain
| | - Enrique Santamaria
- Clinical Neuroproteomics Unit, Proteomics Platform, Proteored-ISCIII, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
- Neurosciences and Mental Health Area, Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Joaquín Fernández-Irigoyen
- Clinical Neuroproteomics Unit, Proteomics Platform, Proteored-ISCIII, Navarrabiomed, Complejo Hospitalario de Navarra (CHN), Universidad Pública de Navarra (UPNA), 31008 Pamplona, Spain
- Neurosciences and Mental Health Area, Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - Carl W Cotman
- Institute for Memory Impairments and Neurological Disorders, University of California-Irvine, Irvine, CA 92697, USA
| | - G Aleph Prieto
- Institute for Memory Impairments and Neurological Disorders, University of California-Irvine, Irvine, CA 92697, USA
- Instituto de Neurobiología, Universidad Nacional Autónoma de México, 76010 Querétaro, México
| | - Ana Quiroga-Varela
- Neuroscience Program, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain
- Neurosciences and Mental Health Area, Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
| | - María Cruz Rodríguez-Oroz
- Neuroscience Program, Center for Applied Medical Research (CIMA), Universidad de Navarra, 31008 Pamplona, Spain
- Neurosciences and Mental Health Area, Navarra Institute for Health Research (IdiSNA), 31008 Pamplona, Spain
- Neurology Department, Clínica Universidad de Navarra (CUN), 31008 Pamplona, Spain
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Xiao Z, Li P, Shen Y, Manaenko A, Yang W, Wang P, Li X, Liu F, Xie P, Li Q. Multi-time point metabolomics reveals key metabolic features from the ultra-early stage of intracerebral hemorrhage in mice. Exp Neurol 2023; 368:114507. [PMID: 37598880 DOI: 10.1016/j.expneurol.2023.114507] [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: 06/20/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/22/2023]
Abstract
Despite decades of intensive research, there are still very limited options for the effective treatment of intracerebral hemorrhage (ICH). Recently, mounting evidence has indicated that the ultra-early stage (<3 h), serving as the primary phase of ICH, plays a pivotal role and may even surpass other stages in terms of its significance. Therefore, uncovering the metabolic alterations induced by ICH in the ultra-early stage is of crucial importance. To investigate this, the collagenase ICH mouse model was employed in this study. ICH or sham-operated mice were euthanized at the ultra-early stage of 3 h and the acute stage of 24 h and 72 h after the operation. Then, the metabolic changes in the perihematomal tissues were detected by liquid chromatography coupled with tandem mass spectrometry. In total, alterations in the levels of 465 metabolites were detected. A total of 136 metabolites were significantly changed at 3 h. At 24 h and 72 h, the amounts were 132 and 126, respectively. Additionally, the key corresponding metabolic pathways for these time points were analyzed through KEGG. To gather additional information, quantitative real-time transcription polymerase chain reaction, enzyme-linked immunosorbent assay and Western blots were performed to validate the metabolic changes. Overall, ICH significantly alters important physiological functions such as cysteine metabolism, purine metabolism, synaptic alterations, the synaptic vesicle cycle, and the ATP-binding cassette transporter system. These might be the key pathologic mechanisms of the ultra-early stage induced by ICH.
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Affiliation(s)
- Zhongsong Xiao
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peizheng Li
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yiqing Shen
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Anatol Manaenko
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wensong Yang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peng Wang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xinhui Li
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Fangyu Liu
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peng Xie
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Qi Li
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Li N, Chen L, Zhao X, Gu C, Chang Y, Feng S. Targeting ANXA7/LAMP5-mTOR axis attenuates spinal cord injury by inhibiting neuronal apoptosis via enhancing autophagy in mice. Cell Death Discov 2023; 9:309. [PMID: 37620352 PMCID: PMC10449888 DOI: 10.1038/s41420-023-01612-w] [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: 04/21/2023] [Revised: 08/10/2023] [Accepted: 08/16/2023] [Indexed: 08/26/2023] Open
Abstract
Spinal cord injury (SCI) could lead to severe disabilities in motor and sensory functions, and cause a heavy burden on patient physiology and psychology due to lack of specific repair measures so far. ANXA7 is an annexin with Ca2+ -dependent GTPase activity, which were mainly expressed in neuron in spinal cord and downregulated significantly after SCI in mice. In our study, GTPase activity activation of ANXA7 plays the protective role in neuron after OGD/R through inhibiting neuron apoptosis, which mediated by enhancing autophagy via mTOR/TFEB pathway. We also discovered that ANXA7 has significant interaction with neural-specific lysosomal-associated membrane protein LAMP5, which together with ANXA7 regulates autophagy and apoptosis. Asp411 mutation of ANXA7 obviously impaired the interaction of ANXA7 and LAMP5 compared with the wild type. Furthermore, it was found that activation of ANXA7 could help to stabilize the protein expression of LAMP5. Overexpression of LAMP5 could attenuate the destruction of lysosomal acidic environment, inhibition of autophagy and activation of apoptosis caused by ANXA7 downregulation after OGD/R. We verified that injecting ANXA7 overexpression lentivirus and activation of ANXA7 both have significant repair effects on SCI mice by using CatWalk assay and immunohistochemistry staining. In summary, our findings clarify the new role of ANXA7 and LAMP5 in SCI, provided a new specific target of neuronal repair and discovered new molecular mechanisms of ANXA7 to regulate autophagy and apoptosis. Targeting ANXA7 may be a prospective therapeutic strategy for SCI in future.
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Affiliation(s)
- Na Li
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Lu Chen
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Xiaoqing Zhao
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Chi Gu
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Yong Chang
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China
| | - Shiqing Feng
- Orthopaedic Research Center of Shandong University, Department of orthopaedics, Qilu Hospital of Shandong University, #44 Wenhua West Road, 250012, Jinan, Shandong, China.
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong, China.
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Li Y, Tian C, Wei Y, Liu H, An N, Song K, Sun Y, Gao Y, Gao Y. Exploring the pharmacological mechanism of Naoxueshu oral liquid in the treatment of intracerebral hemorrhage through weighted gene co-expression network analysis, network pharmacological and experimental validation. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2023; 108:154530. [PMID: 36356328 DOI: 10.1016/j.phymed.2022.154530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Intracerebral hemorrhage (ICH) is a life-threatening stroke subtype with high rates of disability and mortality. Naoxueshu oral liquid is a proprietary Chinese medicine that absorbs hematoma and exhibits neuroprotective effects in patients with ICH. However, the underlying mechanisms remain obscure. PURPOSE Exploring and elucidating the pharmacological mechanism of Naoxueshu oral liquid in the treatment of ICH. STUDY DESIGN AND METHODS The Gene Expression Omnibus (GEO) database was used to download the gene expression data on ICH. ICH-related hub modules were obtained by weighted gene co-expression network analysis (WGCNA) of differentially co-expressed genes (DEGs). The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted using the obtained key modules to identify the ICH-related signaling pathways. Network pharmacology technology was applied to forecast the targets of Naoxueshu oral liquid and to establish a protein-protein interaction (PPI) network of overlapping targets between Naoxueshu oral liquid and ICH. Functional annotation and enrichment pathway analyses of the intersectional targets were performed using the omicsbean database. Finally, we verified the therapeutic role and mechanism of Naoxueshu oral liquid in ICH through molecular docking and experiments. RESULTS Through the WGCNA analysis, combined with network pharmacology, it was found that immune inflammation was closely related to the early pathological mechanism of ICH. Naoxueshu oral liquid suppressed the inflammatory response; hence, it could be a potential drug for ICH treatment. Molecular docking further confirmed that the effective components of Naoxueshu oral liquid docked well with CD163. Finally, the experimental results showed that Naoxueshu oral liquid treatment in the ICH rat model attenuated neurological deficits and neuronal injury, decreased hematoma volume, and promoted hematoma absorption. In addition, Naoxueshu oral liquid treatment also significantly increased the levels of Arg-1, CD163, Nrf2, and HO-1 around hematoma after ICH. CONCLUSION This study demonstrated that Naoxueshu oral liquid attenuated neurological deficits and accelerated hematoma absorption, possibly by suppressing inflammatory responses, which might be related to the regulation of Nrf2/CD163/HO-1 that interfered with the activation of M2 microglia, thus accelerating the clearance and decomposition of hemoglobin in the hematoma.
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Affiliation(s)
- Yuanyuan Li
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China; Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, 100700, China; Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Chao Tian
- Beijing University of Chinese Medicine, Beijing, 100029, China; China-Japan Friendship Hospital, Beijing, 100029, China
| | - Yufei Wei
- Department of Internal Neurology, First Affiliated Hospital, Guangxi University of Chinese Medicine, Guangxi, 530000, China
| | - Haoqi Liu
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Na An
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Ke Song
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yikun Sun
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China
| | - Yonghong Gao
- Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, 100700, China; Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, 100700, China.
| | - Ying Gao
- Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, 100700, China.
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Zhao YY, Xu Y, Yang KC, Wang HB. Prognostic significance of serum annexin A7 in severe traumatic brain injury: A prospective longitudinal cohort study. Clin Chim Acta 2022; 535:46-52. [PMID: 35985500 DOI: 10.1016/j.cca.2022.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/03/2022] [Accepted: 08/05/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Annexin A7 (ANXA7) may have the potential to exacerbate brain injury. Our purpose was to investigate the role of serum ANXA7 as a biomarker of severity and prognosis after severe traumatic brain injury (sTBI). METHODS In this prospective cohort study, we consecutively enrolled 102 sTBI patients and 102 controls and measured their serum ANXA7 concentrations. Post-trauma 180-day poor prognosis was considered as extended Glasgow outcome scale score 1-4. RESULTS Significantly increased serum ANXA7 concentrations of sTBI patients, as compared to controls (median, 74.1 vs 8.0 ng/ml; P < 0.001), had independent correlation with Rotterdam computed tomography score (t = 3.251, P = 0.002) and Glasgow coma scale score (t = -2.253, P = 0.027), as well as serum ANXA7 concentrations > 74.1 ng/ml were independently predictive of 180-day overall survival (hazard ratio, 3.356; 95 % confidence interval (CI), 1.233-9.138; P = 0.018), and poor prognosis (OR: 3.558; 95 % CI, 1.264-10.015; P = 0.016). Serum ANXA7 concentrations were of significant efficiency for discriminating risks of mortality (area under receiver operating curve (AUC), 0.808; 95 % CI; 0.718-0.879) and poor prognosis (AUC, 0.772; 95 % CI; 0.678-0.849). Moreover, its AUC was in range of Glasgow coma scale score and Rotterdam computed tomography score (all P > 0.05) CONCLUSIONS: Increased serum ANXA7 concentrations, in close relation to severity, were independently associated with prognosis, indicating that serum ANXA7 may represent a clinically valuable biomarker of sTBI.
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Affiliation(s)
- Yuan-Yuan Zhao
- Center for Rehabilitation Medicine, Department of Neurosurgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), 158 Shangtang Road, Hangzhou 310014, Zhejiang Province, China
| | - Yan Xu
- Center for Rehabilitation Medicine, Department of Neurosurgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), 158 Shangtang Road, Hangzhou 310014, Zhejiang Province, China
| | - Kai-Chuang Yang
- Center for Rehabilitation Medicine, Department of Neurosurgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), 158 Shangtang Road, Hangzhou 310014, Zhejiang Province, China
| | - Hai-Bo Wang
- Center for Rehabilitation Medicine, Department of Neurosurgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital, Hangzhou Medical College), 158 Shangtang Road, Hangzhou 310014, Zhejiang Province, China.
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Brignone MS, Lanciotti A, Michelucci A, Mallozzi C, Camerini S, Catacuzzeno L, Sforna L, Caramia M, D’Adamo MC, Ceccarini M, Molinari P, Macioce P, Macchia G, Petrucci TC, Pessia M, Visentin S, Ambrosini E. The CaMKII/MLC1 Axis Confers Ca2+-Dependence to Volume-Regulated Anion Channels (VRAC) in Astrocytes. Cells 2022; 11:cells11172656. [PMID: 36078064 PMCID: PMC9454758 DOI: 10.3390/cells11172656] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/18/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Astrocytes, the main glial cells of the central nervous system, play a key role in brain volume control due to their intimate contacts with cerebral blood vessels and the expression of a distinctive equipment of proteins involved in solute/water transport. Among these is MLC1, a protein highly expressed in perivascular astrocytes and whose mutations cause megalencephalic leukoencephalopathy with subcortical cysts (MLC), an incurable leukodystrophy characterized by macrocephaly, chronic brain edema, cysts, myelin vacuolation, and astrocyte swelling. Although, in astrocytes, MLC1 mutations are known to affect the swelling-activated chloride currents (ICl,swell) mediated by the volume-regulated anion channel (VRAC), and the regulatory volume decrease, MLC1′s proper function is still unknown. By combining molecular, biochemical, proteomic, electrophysiological, and imaging techniques, we here show that MLC1 is a Ca2+/Calmodulin-dependent protein kinase II (CaMKII) target protein, whose phosphorylation, occurring in response to intracellular Ca2+ release, potentiates VRAC-mediated ICl,swell. Overall, these findings reveal that MLC1 is a Ca2+-regulated protein, linking volume regulation to Ca2+ signaling in astrocytes. This knowledge provides new insight into the MLC1 protein function and into the mechanisms controlling ion/water exchanges in the brain, which may help identify possible molecular targets for the treatment of MLC and other pathological conditions caused by astrocyte swelling and brain edema.
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Affiliation(s)
| | - Angela Lanciotti
- Department of Neuroscience, Istituto Superiore di Sanità, 00169 Rome, Italy
| | - Antonio Michelucci
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Cinzia Mallozzi
- Department of Neuroscience, Istituto Superiore di Sanità, 00169 Rome, Italy
| | - Serena Camerini
- Core Facilities (FAST), Istituto Superiore di Sanità, 00169 Rome, Italy
| | - Luigi Catacuzzeno
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Luigi Sforna
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Martino Caramia
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06123 Perugia, Italy
| | - Maria Cristina D’Adamo
- Department of Medicine and Surgery, LUM Giuseppe Degennaro University, 70010 Bari, Italy
| | - Marina Ceccarini
- National Centre for Rare Diseases, Istituto Superiore di Sanità, 00169 Rome, Italy
| | - Paola Molinari
- National Centre for Drug Research and Evaluation (FARVA), Istituto Superiore di Sanità, 00169 Rome, Italy
| | - Pompeo Macioce
- Department of Neuroscience, Istituto Superiore di Sanità, 00169 Rome, Italy
| | | | | | - Mauro Pessia
- Department of Physiology and Biochemistry, Faculty of Medicine and Surgery, University of Malta, MSD2080 Msida, Malta
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, Al Ain P.O. Box 17666, United Arab Emirates
| | - Sergio Visentin
- National Centre for Drug Research and Evaluation (FARVA), Istituto Superiore di Sanità, 00169 Rome, Italy
| | - Elena Ambrosini
- Department of Neuroscience, Istituto Superiore di Sanità, 00169 Rome, Italy
- Correspondence: ; Tel.: +39-06-4990-2037
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Wang CL, Xu YW, Yan XJ, Zhang CL. Usability of serum annexin A7 as a biochemical marker of poor outcome and early neurological deterioration after acute primary intracerebral hemorrhage: A prospective cohort study. Front Neurol 2022; 13:954631. [PMID: 36003296 PMCID: PMC9393537 DOI: 10.3389/fneur.2022.954631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/18/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveAnnexin A7 (ANXA7), a calcium-dependent phospholipid-binding protein, may act to aggravate brain injury. This study aimed to assess the clinical utility of serum ANXA7 as a predictor of severity, early neurological deterioration (END), and prognosis after intracerebral hemorrhage (ICH).MethodsA total of 126 ICH patients and 126 healthy controls were enrolled. Symptomatic severity was evaluated utilizing the National Institutes of Health Stroke Scale (NIHSS) score. The lesion volume of ICH was measured according to the ABC/2 method. END was referred to as an increase of 4 or greater points in the NIHSS score or death at post-stroke 24 h. The unfavorable functional outcome was a combination of death and major disability at post-stroke 90 days.ResultsSerum ANXA7 levels were significantly higher in patients than in controls (median, 46.5 vs. 9.7 ng/ml; P < 0.001). Serum ANXA7 levels were independently correlated with NIHSS score [beta: 0.821; 95% confidence interval (CI): 0.106–1.514; variance inflation factor: 5.180; t = 2.573; P = 0.014] and hematoma volume (beta: 0.794; 95% CI: 0.418–1.173; variance inflation factor: 5.281; t = 2.781; P = 0.007). Serum ANXA7 levels were significantly elevated with increase in modified Rankin scale scores (P < 0.001). Also, serum ANXA7, which was identified as a categorical variable, independently predicted END and an unfavorable outcome with odds ratio values of 3.958 (95% CI: 1.290–12.143; P = 0.016) and 2.755 (95% CI: 1.051–7.220; P = 0.039), respectively. Moreover, serum ANXA7 levels efficiently differentiated END (area under the curve: 0.781; 95% CI: 0.698–0.849) and an unfavorable outcome (area under the curve: 0.776; 95% CI: 0.693–0.846).ConclusionSerum ANXA7 may represent a useful blood-derived biomarker for assessing the severity, END, and prognosis of ICH.
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Affiliation(s)
- Chuan-Liu Wang
- Department of Neurology, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Yan-Wen Xu
- Department of Neurology, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Xin-Jiang Yan
- Department of Neurosurgery, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
| | - Cheng-Liang Zhang
- Department of Neurology, The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, Quzhou, China
- *Correspondence: Cheng-Liang Zhang
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9
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Zhu X, Li H, You W, Yu Z, Wang Z, Shen H, Li X, Yu H, Wang Z, Chen G. Role of Rph3A in brain injury induced by experimental cerebral ischemia-reperfusion model in rats. CNS Neurosci Ther 2022; 28:1124-1138. [PMID: 35467084 PMCID: PMC9160444 DOI: 10.1111/cns.13850] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 04/09/2022] [Accepted: 04/13/2022] [Indexed: 01/01/2023] Open
Abstract
Aim The aim was to study the role of Rph3A in neuronal injury induced by cerebral ischemia‐reperfusion. Methods The protein and mRNA levels of Rph3A in penumbra were detected by Western blot. The localization of Rph3A in different cell types in penumbra was detected by immunofluorescence. Apoptosis in the brain was detected by TUNEL staining. We tested neurobehavioral evaluation using rotarod test, adhesive‐removal test, and Morris Water maze test. We examined the expression and localization of Rph3A in cultured neurons and astrocytes in vitro by Western blot and ELISA, respectively. Results The mRNA and protein levels of Rph3A had significantly increased in brain penumbra of the rat MCAO/R model. Rph3A was mainly distributed in neurons and astrocytes and was significantly increased by MCAO/R. We downregulated Rph3A and found that it further worsened the cerebral infarct, neuronal death and behavioral, cognitive, and memory impairments in rats after MCAO/R. We also found that ischemia‐reperfusion upregulated the in vitro protein level and secretion of Rph3A in astrocytes but led to a decrease in the protein level of Rph3A in neurons. Conclusion The increase in Rph3A in the brain penumbra may be an endogenous protective mechanism against ischemia‐reperfusion injury, which is mainly dominated by astrocytes.
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Affiliation(s)
- Xianlong Zhu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China.,Department of Neurosurgery, The Second People's Hospital of Lianyungang City, Lianyungang, Jiangsu, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Wanchun You
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Zhengquan Yu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Zongqi Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Xiang Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Hao Yu
- Department of Neurosurgery, The First People's Hospital of Nantong city, Nantong, Jiangsu, China
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, China.,Institute of Stroke Research, Soochow University, Suzhou, Jiangsu, China
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10
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Zhang Y, Khan S, Liu Y, Zhang R, Li H, Wu G, Tang Z, Xue M, Yong VW. Modes of Brain Cell Death Following Intracerebral Hemorrhage. Front Cell Neurosci 2022; 16:799753. [PMID: 35185473 PMCID: PMC8851202 DOI: 10.3389/fncel.2022.799753] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 01/04/2022] [Indexed: 12/11/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a devastating form of stroke with high rates of mortality and morbidity. It induces cell death that is responsible for neurological deficits postinjury. There are no therapies that effectively mitigate cell death to treat ICH. This review aims to summarize our knowledge of ICH-induced cell death with a focus on apoptosis and necrosis. We also discuss the involvement of ICH in recently described modes of cell death including necroptosis, pyroptosis, ferroptosis, autophagy, and parthanatos. We summarize treatment strategies to mitigate brain injury based on particular cell death pathways after ICH.
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Affiliation(s)
- Yan Zhang
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Suliman Khan
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Yang Liu
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Ruiyi Zhang
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Hongmin Li
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
| | - Guofeng Wu
- Department of Emergency, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Zhouping Tang
- Department of Neurology, Affiliated Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Medical Key Laboratory of Translational Cerebrovascular Diseases, Zhengzhou, China
- *Correspondence: Mengzhou Xue,
| | - V. Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, Canada
- V. Wee Yong,
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11
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Gap Junctions and Hemichannels Composed of Connexins and Pannexins Mediate the Secondary Brain Injury Following Intracerebral Hemorrhage. BIOLOGY 2021; 11:biology11010027. [PMID: 35053024 PMCID: PMC8772966 DOI: 10.3390/biology11010027] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 12/19/2021] [Accepted: 12/24/2021] [Indexed: 12/15/2022]
Abstract
Simple Summary Intracerebral hemorrhage (ICH) is a leading medical problem without effective treatment options. The poor prognosis is attributed to the primary brain injury of the mechanical compression caused by hematoma, and secondary brain injury (SBI) that includes inflammation, glutamate excitotoxicity, oxidative stress and disruption of the blood brain barrier (BBB). Evidences suggests that gap junctions and hemichannels composed of connexins and pannexins regulate the inflammation and excitotoxicity insult in the pathological process of central nervous system disease, such as cerebral ischemia and neurodegeneration disease. In this manuscript, we discuss the fact that connexins- and pannexins-based channels could be involved in secondary brain injury of ICH, particularly through mediating inflammation, oxidative stress, BBB disruption and cell death. The details provided in this manuscript may help develop potential targets for therapeutic intervention of ICH. Abstract Intracerebral hemorrhage (ICH) is a devastating disease with high mortality and morbidity; the mortality rate ranges from 40% at 1 month to 54% at 1 year; only 12–39% achieve good outcomes and functional independence. ICH affects nearly 2 million patients worldwide annually. In ICH development, the blood leakage from ruptured vessels generates sequelae of secondary brain injury (SBI). This mechanism involves activated astrocytes and microglia, generation of reactive oxygen species (ROS), the release of reactive nitrogen species (RNS), and disrupted blood brain barrier (BBB). In addition, inflammatory cytokines and chemokines, heme compounds, and products of hematoma are accumulated in the extracellular spaces, thereby resulting in the death of brain cells. Recent evidence indicates that connexins regulate microglial activation and their phenotypic transformation. Moreover, communications between neurons and glia via gap junctions have crucial roles in neuroinflammation and cell death. A growing body of evidence suggests that, in addition to gap junctions, hemichannels (composed of connexins and pannexins) play a key role in ICH pathogenesis. However, the precise connection between connexin and pannexin channels and ICH remains to be resolved. This review discusses the pathological roles of gap junctions and hemichannels in SBI following ICH, with the intent of discovering effective therapeutic options of strategies to treat ICH.
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12
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Lu J, Li Z, Zhao Q, Liu D, Mei YA. Neuritin improves the neurological functional recovery after experimental intracerebral hemorrhage in mice. Neurobiol Dis 2021; 156:105407. [PMID: 34058347 DOI: 10.1016/j.nbd.2021.105407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/06/2021] [Accepted: 05/26/2021] [Indexed: 11/16/2022] Open
Abstract
Stroke is one of the leading causes of death worldwide, with intracerebral hemorrhage (ICH) being the most lethal subtype. Neuritin (Nrn) is a neurotropic factor that has been reported to have neuroprotective effects in acute brain and spinal cord injury. However, whether Nrn has a protective role in ICH has not been investigated. In this study, ICH was induced in C57BL/6 J mice by injection of collagenase VII, while the overexpression of Nrn in the striatum was induced by an adeno-associated virus serotype 9 (AAV9) vector. We found that compared with GFP-ICH mice, Nrn-ICH mice showed improved performance in the corner, cylinder and forelimb tests after ICH, and showed less weight loss and more rapid weight recovery. Overexpression of Nrn reduced brain lesions, edema, neuronal death and white matter and synaptic integrity dysfunction caused by ICH. Western blot results showed that phosphorylated PERK and ATF4 were significantly inhibited, while phosphorylation of Akt/mammalian target of rapamycin was increased in the Nrn-ICH group, compared with the GFP-ICH group. Whole cell recording from motor neurons indicated that overexpression of Nrn reversed the decrease of spontaneous excitatory postsynaptic currents (sEPSCs) and action potential frequencies induced by ICH. These data show that Nrn improves neurological deficits in mice with ICH by reducing brain lesions and edema, inhibiting neuronal death, and possibly by increasing neuronal connections.
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Affiliation(s)
- Junmei Lu
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and School of Life Sciences, Fudan University, Shanghai 200438, China.
| | - Zhaoyang Li
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Qianru Zhao
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Dongdong Liu
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and School of Life Sciences, Fudan University, Shanghai 200438, China
| | - Yan-Ai Mei
- Institutes of Brain Science, State Key Laboratory of Medical Neurobiology and School of Life Sciences, Fudan University, Shanghai 200438, China.
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Grewal T, Rentero C, Enrich C, Wahba M, Raabe CA, Rescher U. Annexin Animal Models-From Fundamental Principles to Translational Research. Int J Mol Sci 2021; 22:ijms22073439. [PMID: 33810523 PMCID: PMC8037771 DOI: 10.3390/ijms22073439] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 03/18/2021] [Accepted: 03/24/2021] [Indexed: 02/07/2023] Open
Abstract
Routine manipulation of the mouse genome has become a landmark in biomedical research. Traits that are only associated with advanced developmental stages can now be investigated within a living organism, and the in vivo analysis of corresponding phenotypes and functions advances the translation into the clinical setting. The annexins, a family of closely related calcium (Ca2+)- and lipid-binding proteins, are found at various intra- and extracellular locations, and interact with a broad range of membrane lipids and proteins. Their impacts on cellular functions has been extensively assessed in vitro, yet annexin-deficient mouse models generally develop normally and do not display obvious phenotypes. Only in recent years, studies examining genetically modified annexin mouse models which were exposed to stress conditions mimicking human disease often revealed striking phenotypes. This review is the first comprehensive overview of annexin-related research using animal models and their exciting future use for relevant issues in biology and experimental medicine.
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Affiliation(s)
- Thomas Grewal
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
- Correspondence: (T.G.); (U.R.); Tel.: +61-(0)2-9351-8496 (T.G.); +49-(0)251-83-52121 (U.R.)
| | - Carles Rentero
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain; (C.R.); (C.E.)
- Centre de Recerca Biomèdica CELLEX, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Carlos Enrich
- Departament de Biomedicina, Unitat de Biologia Cel·lular, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona, 08036 Barcelona, Spain; (C.R.); (C.E.)
- Centre de Recerca Biomèdica CELLEX, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Mohamed Wahba
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW 2006, Australia;
| | - Carsten A. Raabe
- Research Group Regulatory Mechanisms of Inflammation, Center for Molecular Biology of Inflammation (ZMBE) and Cells in Motion Interfaculty Center (CiM), Institute of Medical Biochemistry, University of Muenster, 48149 Muenster, Germany;
| | - Ursula Rescher
- Research Group Regulatory Mechanisms of Inflammation, Center for Molecular Biology of Inflammation (ZMBE) and Cells in Motion Interfaculty Center (CiM), Institute of Medical Biochemistry, University of Muenster, 48149 Muenster, Germany;
- Correspondence: (T.G.); (U.R.); Tel.: +61-(0)2-9351-8496 (T.G.); +49-(0)251-83-52121 (U.R.)
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14
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Chaudhry F, Jageka C, Levy PD, Cerghet M, Lisak RP. Review of the COVID-19 Risk in Multiple Sclerosis. JOURNAL OF CELLULAR IMMUNOLOGY 2021; 3:68-77. [PMID: 33959727 PMCID: PMC8098748 DOI: 10.33696/immunology.3.080] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The ongoing pandemic of the novel coronavirus of 2019 (COVID-19) has resulted in over 1 million deaths, primarily affecting older patients with chronic ailments. Multiple sclerosis (MS) patients have been deemed particularly vulnerable given their high rates of disability and increased susceptibility to infections. There have also been concerns regarding disease-modifying therapy (DMT) during the pandemic as many DMTs may increase the risk of infection due to some of their immunosuppressive properties. Furthermore, due to MS-related chronic inflammatory damage within the central nervous system, there have been concerns for worsening neurological injury by COVID-19. This has resulted in an alarmingly high level of anxiety and stress among the MS community leading to a lack of compliance with medications and routine check-ups, and even failure to obtain treatment for relapse. However, there is currently substantial evidence that MS and most DMT usage is not associated with increased COVID-19 severity. MS patients who suffer worse outcomes were more likely to be older and suffer from significant disabilities and comorbid conditions, which would also be expected from those in the general population. Likewise, there is little if any evidence demonstrating an increased susceptibility of MS patients to COVID-19-related neurological complications. Therefore, we aim to summarize the most recent findings related to COVID-19 and MS demonstrating that MS and most DMTs do not appear as risk factors for severe COVID-19.
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Affiliation(s)
- Farhan Chaudhry
- Department of Emergency Medicine and Integrative Biosciences, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Neurology, Henry Ford Health System, Detroit, MI, USA
| | - Cristina Jageka
- Department of Neurology, Henry Ford Health System, Detroit, MI, USA
| | - Phillip D. Levy
- Department of Emergency Medicine and Integrative Biosciences, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mirela Cerghet
- Department of Neurology, Henry Ford Health System, Detroit, MI, USA
- Department of Neurology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Robert P Lisak
- Department of Neurology, Wayne State University School of Medicine, Detroit, MI, USA
- Department of Neurology, Wayne State University School of Medicine and the Detroit Medical Center, Detroit, MI, USA
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15
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Zhang B, Zeng Z, Wu H. A Network Pharmacology-Based Analysis of the Protective Mechanism of Miao Medicine Xuemaitong Capsule Against Secondary Brain Damage in the Ischemic Area Surrounding Intracerebral Hemorrhage. J Pharmacol Exp Ther 2020; 377:86-99. [PMID: 33310816 DOI: 10.1124/jpet.120.000083] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 10/05/2020] [Indexed: 11/22/2022] Open
Abstract
Intracerebral hemorrhage (ICH) is a devastating disease with the high mortality. The poor outcome of ICH is partially due to a combination of various secondary insults, including in the ischemic area. Xuemaitong capsule (XMT), a kind of traditional Chinese medicine, has been applied to clinic practice. The purpose of this study is to explore the mechanism of XMT in alleviating secondary damage in the ischemic area after ICH. We screened XMT target, compound components, and ICH-related targets using network pharmacology, cluster analysis, and enrichment analysis. We found that the tumor necrosis factor (TNF) signaling pathway might be the key signaling pathway for XMT treatment of ICH. An ICH rat model was established, as demonstrated by poor neurologic score. In the ICH rats, Western blot analysis and immunofluorescence indicated the upregulated expression of TNF receptor 1 (TNFR1), mitogen-activated protein kinase (MAPK), nuclear factor-κB (NF-κB), and caspase-3 (CASP3). Importantly, administration of XMT alleviated inflammation, edema, and increased perfusion in the ischemic area, whereas the expression of TNFR1, MAPK, NF-κB, and CASP3 was decreased. Furthermore, Fluoro-Jade B and terminal deoxynucleotidyl transferase-mediated digoxigenin-deoxyuridine nick-end labeling staining revealed that XMT application also inhibited apoptosis and degradation of ischemic area neurons. In conclusion, this evidence elucidates that XMT alleviates neuron apoptosis, ischemic area inflammation, edema, and perfusion through the TNFR1-mediated CASP3/NF-κB/MAPK axis. SIGNIFICANCE STATEMENT: Tumor necrosis factor (TNF) is the key signaling pathway of Xuemaitong (XMT) to intervention during intracerebral hemorrhage. Fourteen key targets [intercellular adhesion molecule 1, interleukin (IL) 6, TNF, C-C motif chemokine ligand 2, prostaglandin-endoperoxide synthase 2, v-rel reticuloendotheliosis viral oncogene homolog A, matrix metalloproteinase 9, endothelin-1 (EDN1), mitogen-activated protein kinase (MAPK) 1, fos proto-oncogene protein, caspase-3 (CASP3), jun proto-oncogene, IL1B, MAPK8] are retrieved from the data base. XMT can inhibit neuron apoptosis in the ischemic area via regulating TNF receptor 1 (TNFR1)/CASP3. XMT alleviates inflammation and edema through regulating TNFR1/nuclear factor-κB and TNFR1/MAPK signaling pathways. XMT alleviates hypoperfusion in the cerebral ischemic area through mediating TNFR1/MAPK/EDN1.
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Affiliation(s)
- Bo Zhang
- Neurosurgery Department, Huiya Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Huizhou, P. R. China (B.Z.), Neurosurgery Department, the First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China (B.Z., H.W.), and Graduate School, Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China (Z.Z.)
| | - Zhengyan Zeng
- Neurosurgery Department, Huiya Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Huizhou, P. R. China (B.Z.), Neurosurgery Department, the First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China (B.Z., H.W.), and Graduate School, Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China (Z.Z.)
| | - Haijun Wu
- Neurosurgery Department, Huiya Hospital of the First Affiliated Hospital, Sun Yat-Sen University, Huizhou, P. R. China (B.Z.), Neurosurgery Department, the First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China (B.Z., H.W.), and Graduate School, Guizhou University of Traditional Chinese Medicine, Guiyang, P. R. China (Z.Z.)
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16
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Shao G, Zhou C, Ma K, Zhao W, Xiong Q, Yang L, Huang Z, Yang Z. MiRNA-494 enhances M1 macrophage polarization via Nrdp1 in ICH mice model. JOURNAL OF INFLAMMATION-LONDON 2020; 17:17. [PMID: 32351331 PMCID: PMC7183644 DOI: 10.1186/s12950-020-00247-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 04/08/2020] [Indexed: 12/19/2022]
Abstract
Background Ubiquitination-mediated M1/M2 macrophage polarization plays important roles in the pathogenesis of immune disease. However, the regulatory mechanism of ubiquitination during M1/M2 macrophage polarization following intracerebral hemorrhage (ICH) has not been well studied. Methods In the experiment, macrophages were administered with erythrocyte lysates, and then miR-494-, Nrdp1-, and M1/M2-related markers were analyzed. Brain inflammatory response, brain edema, and neurological functions of ICH mice were also assessed. Results We found that miR-494 levels increased while Nrdp1 levels decreased in macrophages after ICH. We also demonstrated that miR-494 inhibited Nrdp1 expression by directly binding its 3′-untranslated region. MiR-494 attenuated C/EBP-β activation and downstream proinflammatory factor production. Upregulation of Nrdp1 in macrophages significantly promoted M2 macrophage polarization via ubiquitinating and activating C/EBP-β. Moreover, the results indicated that miR-494 could enhance M1 macrophage polarization, promote brain edema, and impair neurological functions in ICH mice. Conclusions Taken together, our results demonstrated that Nrdp1 contributed to M1/M2 macrophage polarization and neuroinflammation via ubiquitination and activation of C/EBP-β in ICH. miR-494 may provide a promising therapeutic clue for ICH.
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Affiliation(s)
- Gaohai Shao
- 1Department of orthopedics, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Changlong Zhou
- 2Department of Neurology and Chongqing key laboratory of cerebravascular disease, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Kunlong Ma
- 1Department of orthopedics, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Wang Zhao
- 2Department of Neurology and Chongqing key laboratory of cerebravascular disease, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Qijiang Xiong
- 2Department of Neurology and Chongqing key laboratory of cerebravascular disease, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Ling Yang
- 2Department of Neurology and Chongqing key laboratory of cerebravascular disease, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Zhongyan Huang
- 2Department of Neurology and Chongqing key laboratory of cerebravascular disease, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
| | - Zhao Yang
- 2Department of Neurology and Chongqing key laboratory of cerebravascular disease, Yongchuan Hospital, Chongqing Medical University, Chongqing, 402160 China
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17
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Chen Y, Zhou L. Letter to the Editor. The role of annexin A7 in SAH. J Neurosurg 2020; 132:979-980. [DOI: 10.3171/2019.2.jns19465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Tan X, Yang Y, Xu J, Zhang P, Deng R, Mao Y, He J, Chen Y, Zhang Y, Ding J, Li H, Shen H, Li X, Dong W, Chen G. Luteolin Exerts Neuroprotection via Modulation of the p62/Keap1/Nrf2 Pathway in Intracerebral Hemorrhage. Front Pharmacol 2020; 10:1551. [PMID: 32038239 PMCID: PMC6985769 DOI: 10.3389/fphar.2019.01551] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 12/02/2019] [Indexed: 12/14/2022] Open
Abstract
Upregulation of neuronal oxidative stress is involved in the progression of secondary brain injury (SBI) following intracerebral hemorrhage (ICH). In this study, we investigated the potential effects and underlying mechanisms of luteolin on ICH-induced SBI. Autologous blood and oxyhemoglobin (OxyHb) were used to establish in vivo and in vitro models of ICH, respectively. Luteolin treatment effectively alleviated brain edema and ameliorated neurobehavioral dysfunction and memory loss in vivo. Also, in vivo, we found that luteolin promoted the activation of the sequestosome 1 (p62)/kelch‐like enoyl-coenzyme A hydratase (ECH)‐associated protein 1 (Keap1)/nuclear factor erythroid 2-related factor 2 (Nrf2) pathway by enhancing autophagy and increasing the translocation of Nrf2 to the nucleus. Meanwhile, luteolin inhibited the ubiquitination of Nrf2 and increased the expression levels of downstream antioxidant proteins, such as heme oxygenase-1 (HO-1) and reduced nicotinamide adenine dinucleotide phosphate (NADPH): quinine oxidoreductase 1 (NQO1). This effect of luteolin was also confirmed in vitro, which was reversed by the autophagy inhibitor, chloroquine (CQ). Additionally, we found that luteolin inhibited the production of neuronal mitochondrial superoxides (MitoSOX) and alleviated neuronal mitochondrial injury in vitro, as indicated via tetrachloro-tetraethylbenzimidazol carbocyanine-iodide (JC-1) staining and MitoSOX staining. Taken together, our findings demonstrate that luteolin enhances autophagy and anti-oxidative processes in both in vivo and in vitro models of ICH, and that activation of the p62-Keap1-Nrf2 pathway, is involved in such luteolin-induced neuroprotection. Hence, luteolin may represent a promising candidate for the treatment of ICH-induced SBI.
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Affiliation(s)
- Xin Tan
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yi Yang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jianguo Xu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Peng Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ruming Deng
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yiguang Mao
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jia He
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yibin Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yan Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Jiasheng Ding
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiang Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Wanli Dong
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, China
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19
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Nogo-A/Pir-B/TrkB Signaling Pathway Activation Inhibits Neuronal Survival and Axonal Regeneration After Experimental Intracerebral Hemorrhage in Rats. J Mol Neurosci 2019; 69:360-370. [PMID: 31286407 DOI: 10.1007/s12031-019-01365-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Accepted: 06/25/2019] [Indexed: 10/26/2022]
Abstract
Intracerebral hemorrhage (ICH) leads to widespread pathological lesions in the brain, especially impacting neuronal survival and axonal regeneration. This study aimed to elucidate whether the Nogo-A (a myelin-related protein)/paired immunoglobulin-like receptor B (Pir-B)/tropomyosin receptor kinase B (TrkB) pathway could exert a regulatory effect in ICH. An ICH model was first established in Sprague Dawley rats, followed by different administrations of vehicle, k252a, or NSC 87877. The Morris water maze test was performed to observe ICH-induced cognitive dysfunction in rats. Rats in the ICH + NSC 87877 group showed better cognitive performance compared with those injected with vehicle or k252a. Neurobehavioral scores were identical. By harvesting brain tissues at different time points after ICH, we detected the expression levels of Nogo-A and PirB with western blot and immunofluorescence and found that they were markedly upregulated at 48 h after ICH. TUNEL and Fluoro-Jade B staining showed that NSC 87877 treatment attenuated ICH-induced apoptosis and neuronal death, whereas k252a treatment aggravated these pathological changes. The expression levels of growth-associated protein 43 (GAP43) and neurofilament 200 (NF200) were higher in the ICH + NSC 87877 group compared with the ICH + vehicle group, but were lower in the ICH + k252a group. Finally, we confirmed the protective role of p-TrkB/TrkB in ICH by western blot. To sum up, our study identified the inhibitory role of the Nogo-A/PirB/TrkB pathway in ICH; however, p-TrkB/TrkB may serve as a potential target for secondary brain injury post-ICH.
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20
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Chen Z, Xu N, Dai X, Zhao C, Wu X, Shankar S, Huang H, Wang Z. Interleukin-33 reduces neuronal damage and white matter injury via selective microglia M2 polarization after intracerebral hemorrhage in rats. Brain Res Bull 2019; 150:127-135. [PMID: 31129170 DOI: 10.1016/j.brainresbull.2019.05.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 05/12/2019] [Accepted: 05/21/2019] [Indexed: 02/07/2023]
Abstract
Interleukin-33 (IL-33) is closely related to the regulation of immunological cells, and its receptor ST2 is a member of the interleukin-1 (IL-1) receptor family. Inflammatory responses play critical roles in neuronal damage and white matter injury (WMI) post intracerebral hemorrhage (ICH). In this study, we tried to explore the role of IL-33 in neuronal damage and WMI after ICH and the underlying mechanisms. The in vivo ICH model was performed by autologous whole blood injection into the right basal ganglia in rats. Immunoblotting, immunofluorescence, brain water content measurement, FJB staining, and TUNEL staining were applied in this study. IL-33 expression was increased in whole brain tissues post-ICH, mainly rapidly increased in ipsilateral astrocyte and microglia, but stayed at a low level in neurons. Intracerebroventricular infusion of IL-33 after ICH attenuated short-term and long-term neurological deficits, WMI, neuronal degeneration, cell death and promoted the transformation of microglia phenotype from M1 to M2 in brain tissues after ICH. These results suggest that IL-33 reduces neuronal damage and WMI by promoting microglia M2 polarization after ICH, thereby improving the outcomes of neurological function.
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Affiliation(s)
- Zhouqing Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, 215006, China.
| | - Na Xu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, 215006, China; State Key Laboratory of Medical Neurobiology and Institute of Brain Sciences, Fudan University, Shanghai, 200032, China.
| | - Xuejiao Dai
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan province, 410008, China.
| | - Chongshun Zhao
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, 215006, China.
| | - Xin Wu
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, 215006, China.
| | - Sandhya Shankar
- Department of Neurology, University of Pittsburgh, Pittsburgh, PA, 15260, USA.
| | - Huachen Huang
- Department of Neurology, First affiliate Hospital, Harbin Medical University, Harbin, Heilongjiang, 150001, China.
| | - Zhong Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, 215006, China.
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21
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Lin QS, Wang WX, Lin YX, Lin ZY, Yu LH, Kang Y, Kang DZ. Annexin A7 induction of neuronal apoptosis via effect on glutamate release in a rat model of subarachnoid hemorrhage. J Neurosurg 2019; 132:777-787. [PMID: 30717037 DOI: 10.3171/2018.9.jns182003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2018] [Accepted: 09/28/2018] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Glutamate excitotoxicity and neuronal apoptosis are suggested to contribute to early brain injury after subarachnoid hemorrhage (SAH). Annexin A7 (ANXA7) has been shown to regulate glutamate release. However, the role of ANXA7 in early brain injury after SAH has not been illustrated. In this study, we aimed to investigate the effect of ANXA7 knockdown in reducing the severity of early brain injury after SAH, and determine the underlying mechanisms. METHODS Endovascular perforation was performed to induce SAH in male Sprague-Dawley rats. ANXA7-siRNA was administered via intraventricular injection 5 days before SAH induction. Neurological test, evaluation of SAH grade, assessment of blood-brain barrier (BBB) permeability, measurement of brain water content, Western blot, double immunofluorescence staining, TUNEL staining, and enzyme-linked immunosorbent assay (ELISA) were performed at 24 hours of SAH induction. RESULTS ANXA7 protein expression increased significantly after SAH induction and was seen mainly in neurons. High expression of ANXA7 was associated with poor neurological status. ANXA7 knockdown dramatically ameliorated early brain injury through alleviating BBB disruption and brain edema. Further investigation of the mechanism showed that inhibiting ANXA7 expression can rescue neuronal apoptosis. In addition, ANXA7 knockdown also significantly reduced glutamate release, which was consistent with a significant increase of Bcl-2 expression and decreases of Bax and cleaved caspase-3 expression. CONCLUSIONS ANXA7 can induce neuronal apoptosis by affecting glutamate release in rats with SAH. Downregulating the expression of ANXA7 can significantly attenuate early brain injury after SAH. Future therapy targeting ANXA7 may be a promising new choice.
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22
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Inhibition of TRAF3 expression alleviates cardiac ischemia reperfusion (IR) injury: A mechanism involving in apoptosis, inflammation and oxidative stress. Biochem Biophys Res Commun 2018; 506:298-305. [PMID: 30348527 DOI: 10.1016/j.bbrc.2018.10.058] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 10/08/2018] [Indexed: 12/28/2022]
Abstract
Ischemia reperfusion (IR) injury is known as a major issue in cardiac transplantation and various pathogenesis are involved in myocardial IR injury. Here, we show that tumor necrosis factor receptor-associated factor 3 (TRAF3) was increased in hearts of mice with cardiac IR injury and in cardiomyocytes incubated with lipopolysaccharide (LPS) and H2O2. Reducing TRAF3 expression in vivo markedly reduced the infacrted area, attenuated the histological changes, improved cardiac dysfunction and injury in mice subjected to IR injury. Functional study further indicated that TRAF3 knockdown inhibited apoptosis in murine hearts of mice with cardiac IR injury and in LPS and H2O2-cotreated cardiomyocytes, as evidenced by the decreased expression of cleaved Caspase-3 and poly (ADP-ribose) polymerases (PARP). In addition, inflammatory response and oxidative stress observed in hearts of mice with IR operation were significantly alleviated by TRAF3 knockdown through inhibiting nuclear factor-κB (NF-κB) and xanthine oxidase (XO) signaling pathways, and similar results were detected in LPS and H2O2-cotreated cardiomyocytes in vitro. Moreover, the loss of TRAF3 also restrained the phosphorylated c-Jun N-terminal protein kinase (JNK) activation following cardiac IR injury. Importantly, blocking JNK activation, as TRAF3 knockdown, greatly reduced apoptosis, inflammation and reactive oxygen species (ROS) production in LPS and H2O2-cotreated cardiomyocytes. In contrast, TRAF3 knockdown-reduced apoptosis, inflammatory response and oxidative stress were significantly rescued by promoting JNK activity in LPS and H2O2-cotreated cardiomyocytes. In summary, the results of our study indicated that repressing TRAF3 expression could be served as essential therapeutic target for protection against cardiac IR injury through restraining JNK-meditated apoptosis, inflammation and the production of ROS.
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23
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Li X, Wang T, Zhang D, Li H, Shen H, Ding X, Chen G. Andrographolide ameliorates intracerebral hemorrhage induced secondary brain injury by inhibiting neuroinflammation induction. Neuropharmacology 2018; 141:305-315. [PMID: 30218674 DOI: 10.1016/j.neuropharm.2018.09.015] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 12/14/2022]
Abstract
Microglia activation and neuroinflammation play important roles in intracerebral hemorrhage (ICH)-induced secondary brain injury (SBI). In this study, we attempted to investigate the potential effects of Andrographolide (Andro) on ICH-induced SBI and the possible mechanisms behind these effects. Andro treatment effectively reduced neuronal cell death and degeneration and alleviated neurobehavioral disorders and brain edema in vivo. In an in vitro study, microglia activation-induced neuronal cell death was ameliorated by Andro treatment. In addition, microglia activation and neuroinflammation were induced by ICH, exhibiting elevated cytokine levels, which could be reversed with Andro treatment. The levels of TNF-α and IL-6 were significantly decreased after treatment with Andro, both in vivo and in vitro, due to the inhibition of nuclear transcription factor-κB (NF-κB) signaling pathway activation. Meanwhile, Andro decreased the levels of IL-1β and LDH, as well as microglia pyroptosis induced by ICH by suppressing the assembly of the nucleotide-binding oligomerization domain like receptor protein 3 (NLRP3) inflammasome. In summary, this study reveals an anti-inflammatory effect of Andro and its potential mechanisms, and it shows that Andro is a potential candidate for improving ICH-induced SBI.
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Affiliation(s)
- Xiang Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China
| | - Tianyi Wang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China
| | - Dongping Zhang
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China
| | - Haiying Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China
| | - Haitao Shen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China
| | - Xin Ding
- Division of Neonatology, Children's Hospital of Soochow University, 92 Zhongnan Street, Suzhou, 215003, China.
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
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24
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Li X, Feng D, Chen G. An Update On Medical Treatment for Intracerebral Hemorrhage. Transl Stroke Res 2018; 9:10.1007/s12975-018-0664-5. [PMID: 30206812 DOI: 10.1007/s12975-018-0664-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 09/04/2018] [Indexed: 12/26/2022]
Affiliation(s)
- Xiang Li
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China
| | - Dongxia Feng
- Department of Neurosurgery, Baylor Scott & White Medical Center, Texas A&M University College of Medicine, Temple, 76508, USA
| | - Gang Chen
- Department of Neurosurgery & Brain and Nerve Research Laboratory, The First Affiliated Hospital of Soochow University, 188 Shizi Street, Suzhou, 215006, China.
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