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Min XL, Jia WJ, Guo L, Jing R, Zhao XH, Hu JY, Li XH, Liu W, Wang T, Dou XK. Brain microvascular endothelial cell-derived exosomes transmitting circ_0000495 promote microglial M1-polarization and endothelial cell injury under hypoxia condition. FASEB J 2024; 38:e23387. [PMID: 38193649 DOI: 10.1096/fj.202301637r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/15/2023] [Accepted: 12/11/2023] [Indexed: 01/10/2024]
Abstract
Human brain microvascular endothelial cells (HBMVECs) and microglia play critical roles in regulating cerebral homeostasis during ischemic stroke. However, the role of HBMVECs-derived exosomes in microglia polarization after stroke remains unknown. We isolated exosomes (Exos) from oxygen glucose deprivation (OGD)-exposed HBMVECs, before added them into microglia. Microglia polarization markers were tested using RT-qPCR or flow cytometry. Inflammatory cytokines were measured with ELISA. Endothelial cell damage was assessed by cell viability, apoptosis, apoptosis-related proteins, oxidative stress, and angiogenic activity using CCK-8, flow cytometry, western blot, ELISA, and endothelial tube formation assay, respectively. We also established middle cerebral artery occlusion (MCAO) mice model to examine the function of circ_0000495 on stroke in vivo. Our study found that HBMVECs-Exos reduced M2 markers (IL-10, CD163, and CD206), increased M1 markers (TNF-α, IL-1β, and IL-12), CD86-positive cells, and inflammatory cytokines (TNF-α and IL-1β), indicating the promotion of microglial M1-polarization. Microglial M1-polarization induced by HBMVECs-Exos reduced viability and promoted apoptosis and oxidative stress, revealing the aggravation of endothelial cell damage. However, circ_0000495 silencing inhibited HBMVECs-Exos-induced alterations. Mechanistically, circ_0000495 adsorbed miR-579-3p to upregulate toll-like receptor 4 (TLR4) in microglia; miR-579-3p suppressed HBMVECs-Exos-induced alterations via declining TLR4; furthermore, Yin Yang 1 (YY1) transcriptionally activated circ_0000495 in HBMVECs. Importantly, circ_0000495 aggravated ischemic brain injury in vivo via activating TLR4/nuclear factor-κB (NF-κB) pathway. Collectively, OGD-treated HBMVECs-Exos transmitted circ_0000495 to regulate miR-579-3p/TLR4/NF-κB axis in microglia, thereby facilitating microglial M1-polarization and endothelial cell damage.
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Affiliation(s)
- Xiao-Li Min
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wen-Ji Jia
- Department of Neurology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Li Guo
- Department of Radiology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Rui Jing
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xiao-Hong Zhao
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jia-Yi Hu
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xu-Hui Li
- Department of Neurosurgery, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Wei Liu
- Department of Anesthesiology, Huashan Hospital, Fudan University, Shanghai, China
| | - Tao Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- International Neuroscience Institute (China-INI), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Xing-Kui Dou
- Department of Cardiology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
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Mehta SL, Arruri V, Vemuganti R. Role of transcription factors, noncoding RNAs, epitranscriptomics, and epigenetics in post-ischemic neuroinflammation. J Neurochem 2024. [PMID: 38279529 DOI: 10.1111/jnc.16055] [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: 08/26/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/28/2024]
Abstract
Post-stroke neuroinflammation is pivotal in brain repair, yet persistent inflammation can aggravate ischemic brain damage and hamper recovery. Following stroke, specific molecules released from brain cells attract and activate central and peripheral immune cells. These immune cells subsequently release diverse inflammatory molecules within the ischemic brain, initiating a sequence of events, including activation of transcription factors in different brain cell types that modulate gene expression and influence outcomes; the interactive action of various noncoding RNAs (ncRNAs) to regulate multiple biological processes including inflammation, epitranscriptomic RNA modification that controls RNA processing, stability, and translation; and epigenetic changes including DNA methylation, hydroxymethylation, and histone modifications crucial in managing the genic response to stroke. Interactions among these events further affect post-stroke inflammation and shape the depth of ischemic brain damage and functional outcomes. We highlighted these aspects of neuroinflammation in this review and postulate that deciphering these mechanisms is pivotal for identifying therapeutic targets to alleviate post-stroke dysfunction and enhance recovery.
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Affiliation(s)
- Suresh L Mehta
- Department of Neurological Surgery, University of Wisconsin, Madison, Wisconsin, USA
| | - Vijay Arruri
- Department of Neurological Surgery, University of Wisconsin, Madison, Wisconsin, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, Wisconsin, USA
- William S. Middleton Veterans Hospital, Madison, Wisconsin, USA
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Zhou Z, Ye Q, Ren H, Zhang Y, Han B, Yao H, Bai Y. CircDYM attenuates microglial apoptosis via CEBPB/ZC3H4 axis in LPS-induced mouse model of depression. Int J Biol Macromol 2024; 254:127922. [PMID: 37944732 DOI: 10.1016/j.ijbiomac.2023.127922] [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: 08/12/2023] [Revised: 11/04/2023] [Accepted: 11/04/2023] [Indexed: 11/12/2023]
Abstract
Major depressive disorder (MDD) is a highly prevalent condition and one of the most common psychiatric disorders worldwide. Circular RNA (circRNA) has been increasingly implicated in MDD. However, a comprehensive understanding of circRNA and microglial apoptosis in depression is incomplete. Here, we show that circDYM inhibits microglial apoptosis induced by LPS via CEBPB/ZC3H4 axis. CircDYM prevents the translocation of CEBPB from cytoplasm to the nucleus by binding with CEBPB. Moreover, LPS-induced CEBPB nuclear entry downregulates the expression of ZC3H4, in which promotes autophagy and apoptosis in microglia. Taken together, our findings provide new insights into the relationship between circDYM and microglial apoptosis and shed new light on the function of this novel mechanism in depression-associated complex changes in the brain.
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Affiliation(s)
- Zhongqiu Zhou
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
| | - Qingqing Ye
- Department of Pharmacy, The First Affiliated Hospital of Ningbo University, Ningbo, China
| | - Hui Ren
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
| | - Yuan Zhang
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
| | - Bing Han
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China
| | - Honghong Yao
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China; Co-innovation Center of Neuroregeneration, Nantong University, Nantong, China; Institute of Life Sciences, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, China
| | - Ying Bai
- Department of Pharmacology, Jiangsu Provincial Key Laboratory of Critical Care Medicine, School of Medicine, Southeast University, Nanjing, China.
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Xu G, Liu G, Wang Z, Li Y, Fang W. Circular RNAs: Promising Treatment Targets and Biomarkers of Ischemic Stroke. Int J Mol Sci 2023; 25:178. [PMID: 38203348 PMCID: PMC10779226 DOI: 10.3390/ijms25010178] [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: 11/01/2023] [Revised: 12/14/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024] Open
Abstract
Ischemic stroke is one of the most significant causes of morbidity and mortality worldwide. However, there is a dearth of effective drugs and treatment methods for ischemic stroke. Significant numbers of circular RNAs (circRNAs) exhibit abnormal expression following ischemic stroke and are considered potential therapeutic targets. CircRNAs have emerged as promising biomarkers due to their stable expression in peripheral blood and their potential significance in ischemic stroke diagnosis and prognosis. This review provides a summary of 31 circRNAs involved in the pathophysiological processes of apoptosis, autophagy, inflammation, oxidative stress, and angiogenesis following ischemic stroke. Furthermore, we discuss the mechanisms of action of said circRNAs and their potential clinical applications. Ultimately, circRNAs exhibit promise as both therapeutic targets and biomarkers for ischemic stroke.
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Affiliation(s)
| | | | | | - Yunman Li
- Department of Physiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (G.X.); (G.L.); (Z.W.)
| | - Weirong Fang
- Department of Physiology, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing 210009, China; (G.X.); (G.L.); (Z.W.)
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Kang X, Cao Y, Sun G, Fei D, Kang K, Meng X, Zhao M. CircPTP4A2 Promotes Microglia Polarization in Cerebral Ischemic Stroke via miR-20b-5p/YTHDF1/TIMP2 Axis. Neuromolecular Med 2023; 25:501-515. [PMID: 37704831 DOI: 10.1007/s12017-023-08751-4] [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: 05/29/2023] [Accepted: 08/12/2023] [Indexed: 09/15/2023]
Abstract
Activated microglia play dual roles in ischemic stroke (IS) according to its polarization states. Herein, we investigated the function of circPTP4A2 in regulating microglia polarization in IS. IS models were established by MACO/R and OGD/R treatment. TTC staining was employed to detect cerebral infarct size. Cell vitality was measured using CCK-8 assay. CD16 and CD206 levels were examined using flow cytometry. The interactions between circPTP4A2, miR-20b-5p, and YTHDF1 were analyzed by dual-luciferase reporter gene, RIP, or RNA pull-down assays. circPTP4A2 was upregulated in IS patients. circPTP4A2 knockdown alleviated MCAO/R-induced cerebral injury in mice. circPTP4A2 knockdown promoted microglia M2 polarization after OGD/R. circPTP4A2 promoted YTHDF1 expression by sponging miR-20b-5p. The promoting effect of circPTP4A2 knockdown on microglia M2 polarization was abrogated by miR-20b-5p inhibition. YTHDF1 activated the NF-κB pathway by increasing TIMP2 mRNA stability and expression. circPTP4A2 downregulation promoted microglia M2 polarization to inhibit IS development by regulating the miR-20b-5p/YTHDF1/TIMP2/NF-κB axis.
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Affiliation(s)
- Xianxin Kang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China
| | - Yanhui Cao
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China
| | - Guodong Sun
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China
| | - Dongsheng Fei
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China
| | - Kai Kang
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China
| | - Xianglin Meng
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China
| | - Mingyan Zhao
- Department of Critical Care Medicine, The First Affiliated Hospital of Harbin Medical University, No. 23, Postal Street, Nangang District, Harbin, 150000, Heilongjiang Province, People's Republic of China.
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Li F, Shi Z, Cheng M, Zhou Z, Chu M, Sun L, Zhou JC. Biology and Roles in Diseases of Selenoprotein I Characterized by Ethanolamine Phosphotransferase Activity and Antioxidant Potential. J Nutr 2023; 153:3164-3172. [PMID: 36963501 DOI: 10.1016/j.tjnut.2023.03.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/26/2023] Open
Abstract
Selenoprotein I (SELENOI) has been demonstrated to be an ethanolamine phosphotransferase (EPT) characterized by a nonselenoenzymatic domain and to be involved in the main synthetic branch of phosphatidylethanolamine (PE) in the endoplasmic reticulum. Therefore, defects of SELENOI may affect the health status through the multiple functions of PE. On the other hand, selenium (Se) is covalently incorporated into SELENOI as selenocysteine (Sec) in its peptide, which forms a Sec-centered domain as in the other members of the selenoprotein family. Unlike other selenoproteins, Sec-containing SELENOI was formed at a later stage of animal evolution, and the high conservation of the structural domain for PE synthesis across a wide range of species suggests the importance of EPT activity in supporting the survival and evolution of organisms. A variety of factors, such as species characteristics (age and sex), diet and nutrition (dietary Se and fat intakes), SELENOI-specific properties (tissue distribution and rank in the selenoproteome), etc., synergistically regulate the expression of SELENOI in a tentatively unclear interaction. The N- and C-terminal domains confer 2 distinct biochemical functions to SELENOI, namely PE regulation and antioxidant potential, which may allow it to be involved in numerous physiological processes, including neurological diseases (especially hereditary spastic paraplegia), T cell activation, tumorigenesis, and adipocyte differentiation. In this review, we summarize advances in the biology and roles of SELENOI, shedding light on the precise regulation of SELENOI expression and PE homeostasis by dietary Se intake and pharmaceutical or transgenic approaches to modulate the corresponding pathological status.
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Affiliation(s)
- Fengna Li
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Zhan Shi
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Minning Cheng
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Zhongwei Zhou
- School of Medical, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China
| | - Ming Chu
- Department of Neurosurgery, The Third People's Hospital of Shenzhen, Shenzhen 518112, China
| | - Litao Sun
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China.
| | - Ji-Chang Zhou
- School of Public Health (Shenzhen), Shenzhen Campus of Sun Yat-sen University, Shenzhen, China; Guangdong Province Engineering Laboratory for Nutrition Translation, Guangzhou, China.
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7
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Kunze R, Fischer S, Marti HH, Preissner KT. Brain alarm by self-extracellular nucleic acids: from neuroinflammation to neurodegeneration. J Biomed Sci 2023; 30:64. [PMID: 37550658 PMCID: PMC10405513 DOI: 10.1186/s12929-023-00954-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 07/22/2023] [Indexed: 08/09/2023] Open
Abstract
Neurological disorders such as stroke, multiple sclerosis, as well as the neurodegenerative diseases Parkinson's or Alzheimer's disease are accompanied or even powered by danger associated molecular patterns (DAMPs), defined as endogenous molecules released from stressed or damaged tissue. Besides protein-related DAMPs or "alarmins", numerous nucleic acid DAMPs exist in body fluids, such as cell-free nuclear and mitochondrial DNA as well as different species of extracellular RNA, collectively termed as self-extracellular nucleic acids (SENAs). Among these, microRNA, long non-coding RNAs, circular RNAs and extracellular ribosomal RNA constitute the majority of RNA-based DAMPs. Upon tissue injury, necrosis or apoptosis, such SENAs are released from neuronal, immune and other cells predominantly in association with extracellular vesicles and may be translocated to target cells where they can induce intracellular regulatory pathways in gene transcription and translation. The majority of SENA-induced signaling reactions in the brain appear to be related to neuroinflammatory processes, often causally associated with the onset or progression of the respective disease. In this review, the impact of the diverse types of SENAs on neuroinflammatory and neurodegenerative diseases will be discussed. Based on the accumulating knowledge in this field, several specific antagonistic approaches are presented that could serve as therapeutic interventions to lower the pathological outcome of the indicated brain disorders.
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Affiliation(s)
- Reiner Kunze
- Institute of Physiology and Pathophysiology, Department of Cardiovascular Physiology, Ruprecht-Karls-University, Im Neuenheimer Feld 326, 69120 Heidelberg, Germany
| | - Silvia Fischer
- Department of Biochemistry, Medical School, Justus-Liebig-University, Giessen, Germany
| | - Hugo H. Marti
- Institute of Physiology and Pathophysiology, Department of Cardiovascular Physiology, Ruprecht-Karls-University, Im Neuenheimer Feld 326, 69120 Heidelberg, Germany
| | - Klaus T. Preissner
- Department of Biochemistry, Medical School, Justus-Liebig-University, Giessen, Germany
- Kerckhoff-Heart-Research-Institute, Department of Cardiology, Medical School, Justus-Liebig-University, Giessen, Germany
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Wang X, Zhang S, Zhang Z, Zu J, Shi H, Yu L, Lv B, Cui L, Mao W, Wu D, Cui G. Increased plasma levels of circPTP4A2 and circTLK2 are associated with stroke injury. Ann Clin Transl Neurol 2023; 10:1481-1492. [PMID: 37350305 PMCID: PMC10424654 DOI: 10.1002/acn3.51837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/25/2023] [Accepted: 06/10/2023] [Indexed: 06/24/2023] Open
Abstract
OBJECTIVE Accumulating studies have shown that circulating circular RNAs (circRNAs) represent novel biomarkers for many human diseases. We investigated whether plasma circPTP4A2 and circTLK2 levels are associated with stroke severity, infarct volume, stroke etiology, and functional outcome in acute ischemic stroke (AIS) patients. METHODS We applied quantitative real-time PCR (qPCR) to measure plasma circPTP4A2 and circTLK2 levels of 236 AIS patients within 72 h of symptoms onset and 136 healthy controls. We further assessed the National Institutes of Health Stroke Scale (NIHSS), infarct size, the Trial of Org 10172 in Acute Stroke Treatment (TOAST) classification and the 90-day modified Rankin scale (mRS) for each patient. RESULTS At admission, plasma circPTP4A2 and circTLK2 levels in patients with moderate to severe stroke were significantly higher compared to those with mild stroke. Logistic regression and receiver-operating characteristic (ROC) curve analyses indicated that they might function as predictive biomarkers for moderate to severe stroke. We also observed a medium positive correlation between these two circRNAs and NIHSS. Plasma circPTP4A2 and circTLK2 levels were slight positively correlated with cerebral infarct volume only in anterior circulation infarction (ACI) patients. Levels of both circPTP4A2 and circTLK2 were closely related with large artery atherosclerosis (LAA) stroke. Moreover, changes within 7 days after admission in circPTP4A2 and circTLK2 were able to predict unfavorable clinical outcome 90 days after AIS. INTERPRETATION These results demonstrate that plasma circPTP4A2 and circTLK2 strongly correlated with severity, subtypes and prognosis of AIS, and they could serve as promising biomarkers.
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Affiliation(s)
- Xingzhi Wang
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Jiangsu Key Laboratory of Brain Disease and Bioinformation, Research Center for Biochemistry and Molecular BiologyXuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Shenyang Zhang
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
- School of MedicineSoutheast UniversityNanjingJiangsuChina
| | - Zuohui Zhang
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Jie Zu
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Hongjuan Shi
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Lu Yu
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Bingchen Lv
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Likun Cui
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Wenqi Mao
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Di Wu
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
| | - Guiyun Cui
- Department of NeurologyThe Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsuChina
- Institute of Stroke ResearchXuzhou Medical UniversityXuzhouJiangsuChina
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Jiang W, Long X, Li Z, Hu M, Zhang Y, Lin H, Tang W, Ouyang Y, Jiang L, Chen J, He P, Ouyang X. The Role of Circular RNAs in Ischemic Stroke. Neurochem Res 2023:10.1007/s11064-023-03935-7. [PMID: 37126193 DOI: 10.1007/s11064-023-03935-7] [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: 11/25/2022] [Revised: 03/29/2023] [Accepted: 03/31/2023] [Indexed: 05/02/2023]
Abstract
Ischemic stroke (IS), a devastating condition characterized by intracranial artery stenosis and middle cerebral artery occlusion leading to insufficient oxygen supply to the brain, is a major cause of death and physical disability worldwide. Recent research has demonstrated the critical role of circular RNAs (circRNAs), a class of covalently enclosed noncoding RNAs that are widespread in eukaryotic cells, in regulating various physiological and pathophysiological cellular processes, including cell apoptosis, autophagy, synaptic plasticity, and neuroinflammation. In the past few years, circRNAs have attracted extensive attention in the field of IS research. This review summarizes the current understanding of the mechanisms underlying the involvement of circRNAs in IS development. A better understanding of circRNA-mediated pathogenic mechanisms in IS may pave the way for translating circRNA research into clinical practice, ultimately improving the clinical outcomes of IS patients.
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Affiliation(s)
- Weiwei Jiang
- Department of Organ Transplantation, Zhujiang Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiongquan Long
- Department of Gastroenterology, The First Affiliated Hospital of Hunan Normal University, Hunan Normal University, Changsha, Hunan, China
| | - Zhicheng Li
- Collage of Pharmacy, University of South China, Hengyang, Hunan, China
| | - Mi Hu
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China
| | - Yangkai Zhang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China
| | - Huiling Lin
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China
| | - Wanying Tang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China
| | - Yuxin Ouyang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China
| | - Liping Jiang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China
| | - Jinzhi Chen
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China
| | - Pingping He
- The Research Center of Reproduction and Translational Medicine of Hunan Province, Department of Physiology, Medical College, Hunan Normal University, Changsha, 410081, Hunan Province, China
| | - Xinping Ouyang
- Department of Physiology, Institute of Neuroscience Research, Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, University of South China, Hengyang, Hunan, China.
- The Research Center of Reproduction and Translational Medicine of Hunan Province, Department of Physiology, Medical College, Hunan Normal University, Changsha, 410081, Hunan Province, China.
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Circular RNAs in Ischemic Stroke: Biological Role and Experimental Models. Biomolecules 2023; 13:biom13020214. [PMID: 36830585 PMCID: PMC9953235 DOI: 10.3390/biom13020214] [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: 12/19/2022] [Revised: 01/13/2023] [Accepted: 01/19/2023] [Indexed: 01/24/2023] Open
Abstract
Ischemic stroke is among the leading causes of morbidity, disability, and mortality worldwide. Despite the recent progress in the management of acute ischemic stroke, timely intervention still represents a challenge. Hence, strategies to counteract ischemic brain injury during and around the acute event are still lacking, also due to the limited knowledge of the underlying mechanisms. Despite the increasing understanding of the complex pathophysiology underlying ischemic brain injury, some relevant pieces of information are still required, particularly regarding the fine modulation of biological processes. In this context, there is emerging evidence that the modulation of circular RNAs, a class of highly conserved non-coding RNA with a closed-loop structure, are involved in pathophysiological processes behind ischemic stroke, unveiling a number of potential therapeutic targets and possible clinical biomarkers. This paper aims to provide a comprehensive overview of experimental studies on the role of circular RNAs in ischemic stroke.
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11
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He L, Zhang F, Zhu Y, Lu M. A crosstalk between circular RNA, microRNA, and messenger RNA in the development of various brain cognitive disorders. Front Mol Neurosci 2022; 15:960657. [PMID: 36329693 PMCID: PMC9622787 DOI: 10.3389/fnmol.2022.960657] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/28/2022] [Indexed: 11/23/2022] Open
Abstract
Patients with Alzheimer's disease (AD), Parkinson's disease (PD), traumatic brain injury (TBI), stroke, and postoperative neurocognitive disorder (POND) are commonly faced with neurocognitive disorders with limited therapeutic options. Some non-coding ribonucleic acids (ncRNAs) are involved in the development of various brain cognitive disorders. Circular RNAs (circRNAs), a typical group of ncRNAs, can function as competitive endogenous RNAs (ceRNAs) to dysregulate shared microRNAs (miRNAs) at post-transcription level, inhibiting regulation of miRNAs on their targeted messenger RNAs (mRNAs). circRNAs are abundant in central nervous system (CNS) diseases and cause brain disorders, but the exact roles of circRNAs are unclear. The crosstalk between circRNA, miRNA, and mRNA plays an important role in the pathogenesis of these neurocognitive dysfunction diseases and abnormal conditions including AD, PD, stroke, TBI, and POND. In this review, we summarized the participation of circRNA in neuroglial damage and inflammation. Finally, we aimed to highlight the regulatory mechanisms of circRNA–miRNA–mRNA networks in the development of various brain cognitive disorders and provide new insights into the therapeutics of these diseases.
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Affiliation(s)
- Liang He
- Department of Anesthesiology, Yan'an Hospital of Kunming City, Kunming Medical University, Kunming, China
- *Correspondence: Liang He
| | - Furong Zhang
- Department of Anesthesiology, Yan'an Hospital of Kunming City, Kunming Medical University, Kunming, China
| | - Yuling Zhu
- Department of Anesthesiology, Yan'an Hospital of Kunming City, Kunming Medical University, Kunming, China
| | - Meilin Lu
- Department of Anesthesiology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- Meilin Lu
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