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Wang L, Chen J, Li H, Zhou Q, Zhang C. Expression of long non-coding RNA GAS5 by first trimester screening predicts the occurrence of gestational hypertension and pre-eclampsia. J Assist Reprod Genet 2024; 41:1661-1667. [PMID: 38530512 PMCID: PMC11224183 DOI: 10.1007/s10815-024-03093-x] [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: 10/18/2023] [Accepted: 03/11/2024] [Indexed: 03/28/2024] Open
Abstract
AIMS Hypertensive disorders of pregnancy (HDP) is a unique disease during gestational period, which is detrimental to pregnancy outcome. This study examined the clinical significance of long non-coding RNA GAS5 in gestational hypertension (GH) and preeclampsia (PE), aiming to explore potential biomarkers for the disease detection. METHODS 180 pregnant women with HPD including 90 cases with GH and 90 cases with PE, and another 100 healthy pregnant women were enrolled. Serum GAS5 levels were measured by RT-qPCR method. The diagnostic performance of GAS5 was assessed in GH and PE through plotting receiver operating characteristic (ROC) curve. Logistic regression was applied for the identification of independent factors. RESULTS Elevated serum GAS5 was identified in GH patients, and its diagnostic performance in discriminating GH cases from healthy people was determined by ROC curve. Serum GAS5 was positively associated with SBP, DBP, LDL-C and CRP values. Cases with PE had an increased serum GAS5 level relative to those with GH. Serum GAS5 was identified to be an independent predictor for PE, and can differentiate PE cases from GH ones. with a good diagnositc performance. Cases with high levels of serum GAS5 had a high risk of poor pregnancy outcomes. CONCLUSION Elevated serum GAS5 could serve as an effective diagnostic biomarker in discriminating GH patients from healthy people by first trimester screening. Detection of serum GAS5 level has a certain predictive value for PE.
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Affiliation(s)
- Li Wang
- Obstetrics and Gynecology Department, Shengli Oilfield Central Hospital, No. 31 Jinan Road, Dongying, 257000, Shandong, China
| | - Jinfeng Chen
- Obstetrics Department, Shengli Oilfield Central Hospital, Dongying, 257000, Shandong, China
| | - Huihui Li
- Delivery Room, Shengli Oilfield Central Hospital, Dongying, 257000, Shandong, China
| | - Qianqian Zhou
- Obstetrics Department, Shengli Oilfield Central Hospital, Dongying, 257000, Shandong, China
| | - Chunxia Zhang
- Obstetrics and Gynecology Department, Shengli Oilfield Central Hospital, No. 31 Jinan Road, Dongying, 257000, Shandong, China.
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Dubey G, Singh M, Singh H, Agarwal M, Chandel SS, Mishra A, Singh RP, Kukreti N. Emerging roles of SnoRNAs in the pathogenesis and treatment of autoimmune disorders. Pathol Res Pract 2024; 253:154952. [PMID: 38000202 DOI: 10.1016/j.prp.2023.154952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/13/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023]
Abstract
SnoRNAs (small non-coding RNAs) have recently gained prominence in autoimmune diseases, revealing their crucial role in modulating the immune response and contributing to disease pathogenesis. Initially known for their involvement in ribosomal RNA processing and modification, molecular biology and genomics advancements have uncovered their broader impact on cellular function, especially in autoimmune disorders. Autoimmune diseases represent conditions characterized by the immune system's erroneous attacks on self-tissues, encompassing disorders like systemic lupus erythematosus, rheumatoid arthritis, and multiple sclerosis. The complex etiology of these conditions involves a delicate interplay of genetic and environmental factors. Emerging evidence suggests that snoRNAs initially recognized for their housekeeping roles, extend their influence on immune regulation through diverse mechanisms. SnoRNAs have been implicated in epigenetic modification, directly affecting the gene expression profiles of immune cells. Their ability to guide site-specific changes on ribosomal RNAs and other non-coding RNAs can significantly influence the translation of proteins involved in immune response pathways. Moreover, snoRNAs interact with key immune-related proteins, modulating their functions and subsequently impacting immune cell development, activation, and tolerance. Dysregulation of snoRNA expression has been observed in various autoimmune diseases, underscoring their potential as biomarkers for disease diagnosis, prognosis, and therapeutic targets. Manipulating snoRNA expression or activity is a promising therapeutic intervention avenue, offering the potential for personalized treatment strategies in autoimmune diseases. However, there remains a need for comprehensive research efforts to elucidate the precise molecular mechanisms underlying snoRNA-mediated immune modulation. Further investigations in this domain are essential to unravel the potential of snoRNAs in autoimmune disorders.
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Affiliation(s)
- Gaurav Dubey
- NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, Rajasthan, India
| | - Mithilesh Singh
- NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, Rajasthan, India.
| | - Himmat Singh
- NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, Rajasthan, India
| | - Mohit Agarwal
- NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, Rajasthan, India
| | | | - Anurag Mishra
- NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, Rajasthan, India
| | - Ravindra Pal Singh
- NIMS Institute of Pharmacy, NIMS University Rajasthan, Jaipur, Rajasthan, India
| | - Neelima Kukreti
- School of Pharmacy, Graphic Era Hill University, Dehradun 248007, India
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Jiang Z, Liu M, Huang D, Cai Y, Zhou Y. Silencing of Long Noncoding RNA GAS5 Blocks Experimental Cerebral Ischemia-Reperfusion Injury by Restraining AQP4 Expression via the miR-1192/STAT5A Axis. Mol Neurobiol 2022; 59:7450-7465. [PMID: 36195691 DOI: 10.1007/s12035-022-03045-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 09/21/2022] [Indexed: 11/29/2022]
Abstract
The long noncoding RNA (lncRNA) GAS5 has been shown to affect disease development in stroke. This study aimed to elucidate the regulatory mechanism of the lncRNA GAS5 on STAT5A in cerebral ischemia/reperfusion (I/R) injury. First, GAS5 and STAT5A levels in the blood of patients with stroke were determined. Then, a middle cerebral artery occlusion and reperfusion rat model was established in which short hairpin RNAs targeting GAS5 or STAT5A were intracranially injected, followed by the assessment of neurological function, cerebral injury and water content, and inflammation. Primary rat astrocytes were induced with oxygen-glucose deprivation/reoxygenation (OGD/R), and cell proliferation, apoptosis, and inflammation were evaluated. Moreover, the interplay between GAS5, miR-1192, and STAT5A and the binding of STAT5A to the AQP4 promoter were identified. GAS5 and STAT5A were strongly expressed in stroke patients, and inhibition of GAS5 or STAT5A in model rats improved neurological function, reduced infarction and neuronal apoptosis, and diminished cerebral water content and astrocyte activation. Furthermore, GAS5 or STAT5A downregulation restored proliferation and restrained apoptosis and inflammation in OGD/R-induced astrocytes. Mechanistically, GAS5 targeted miR-1192, which negatively regulated STAT5A. Astrocytes showed perturbed proliferation and strengthened apoptosis and inflammation when miR-1192 was inhibited despite the silencing of GAS5, while these unfavorable effects were abolished by STAT5A silencing. STAT5A binds to the AQP4 promoter and regulates its expression. Silencing of GAS5 and overexpresion of AQP4 led to lower cell viability and higher apoptosis and inflammation than GAS5 silencing alone. Overall, GAS5 silencing inhibited AQP4 through the miR-1192/STAT5A axis, thus alleviating cerebral I/R injury.
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Affiliation(s)
- Zhongzhong Jiang
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Min Liu
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Dezhi Huang
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Yang Cai
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China
| | - Yu Zhou
- Department of Neurosurgery, the Second Xiangya Hospital, Central South University, No. 139 Renmin Middle Road, Changsha, Hunan, 410011, People's Republic of China.
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Li X, Qian Y, Tang K, Li Y, Tao R, Gong C, Huang L, Zou K, Liu L. Inhibition of lncRNA H19/miR-370-3p pathway mitigates neuronal apoptosis in an in vitro model of spinal cord injury (SCI). Transl Neurosci 2021; 12:103-113. [PMID: 33708438 PMCID: PMC7925972 DOI: 10.1515/tnsci-2021-0013] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 01/05/2021] [Accepted: 01/27/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Spinal cord injury (SCI) is the most serious complication of spinal injury, often leading to severe dysfunction of the limbs below the injured segment. Conventional therapy approaches are becoming less and less effective, and gene therapy is a new research direction by now. METHODS The Sprague-Dawley rats were haphazardly assigned to two groups, namely sham group and SCI model group, and lncRNA H19 and miR-370-3p levels were investigated using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Correlation between lncRNA H19 and miR-370-3p was ascertained by luciferase report assay and RT-qPCR. After transfection with si-H19, miR-370-3p inhibitor, negative controls (NC), or both, primary spinal neurons were subjected to the simulation of lipopolysaccharide (LPS) for inducing in vitro model of SCI. Cell viability, apoptotic rate, caspase-3 activity, Bax and Bcl-2 protein, ROS generation, TNF-α, IL-1β, and IL-6 protein, as well as IκBα and p65 phosphorylation ratio were evaluated adopting 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), apoptosis, caspase-3 activity, ROS generation, and western blot assays, thereby searching for the specific action mechanism on LPS-induced spinal never injury. RESULTS SCI resulted in lncRNA H19 higher expression and miR-370-3p lower expression. LPS simulation raised a series of cellular biological changes, such as decreased viability, promoted apoptosis, generated ROS, and released inflammatory factors. lncRNA H19 inhibition reversed above LPS-induced changes. Besides, as the downstream target of lncRNA H19, miR-370-3p was oppositely regulated by lncRNA H19. The above biological changes induced by lncRNA H19 inhibition were reversed by miR-370-3p upregulation. Moreover, lncRNA H19 inhibition could block NF-κB pathway through miR-370-3p upregulation. CONCLUSION Inhibition of lncRNA H19/miR-370-3p mitigated spinal neuron apoptosis in an in vitro model of SCI. This provided the possibility for clinical use of gene therapy.
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Affiliation(s)
- Xin Li
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Yan Qian
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Kaihua Tang
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Yang Li
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Rui Tao
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Chunyan Gong
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Li Huang
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Kaiwen Zou
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
| | - Lindong Liu
- Department of Rehabilitation Medicine, Qujing No. 1 Hospital, Yuanlin No. 1 Road, Qilin District, Qujing 655000, Yunnan, China
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Deng Y, Chen D, Gao F, Lv H, Zhang G, Sun X, Liu L, Mo D, Ma N, Song L, Huo X, Yan T, Zhang J, Luo Y, Miao Z. Silencing of Long Non-coding RNA GAS5 Suppresses Neuron Cell Apoptosis and Nerve Injury in Ischemic Stroke Through Inhibiting DNMT3B-Dependent MAP4K4 Methylation. Transl Stroke Res 2020; 11:950-966. [PMID: 31997156 DOI: 10.1007/s12975-019-00770-3] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/05/2019] [Accepted: 12/06/2019] [Indexed: 12/13/2022]
Abstract
Ischemic stroke is associated with various physiological and pathological processes including neuronal apoptosis. Growth-arrest-specific transcript 5 (GAS5), a long non-coding RNA (lncRNA), has been recently reported to affect ischemic stroke-induced neuron apoptosis, while its mechanisms remain largely undefined. Through in silico analysis, GAS5 was predicted to interact with the promoter of MAP4K4. The aim of the present study was therefore to investigate the possible role of GAS5 in the progression of ischemic stroke via regulation of mitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4) methylation. The expression of MAP4K4 was found to be lowly expressed in the clinical samples collected from 55 patients. MAP4K4 was suggested to be methylated in an in vitro model of oxygen-glucose deprivation (OGD)-treated mouse primary cortical neurons, while its overexpression could inhibit OGD-induced neuronal apoptosis. A series of dual-luciferase reporter, RIP, RNA pull-down, ChIP MSP, and BSP assays confirmed that GAS5 significantly induced MAP4K4 methylation and downregulated MAP4K4 expression through the recruitment of DNA methyltransferase 3B (DNMT3B). An in vivo ischemic stroke model was developed using middle cerebral artery occlusion (MCAO). Upregulation of GAS5 promoted OGD-induced neuronal apoptosis in the in vitro model and increased cerebral infarction size and neurological score in the in vivo model by reducing MAP4K4 expression. Collectively, the present study highlights that silencing GAS5 may inhibit neuronal apoptosis and improve neurological function in ischemic stroke by suppressing DNMT3B-mediated MAP4K4 methylation, which contributes to better understanding of the pathologies of ischemic stroke and development of novel therapeutic options for this disease.
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Affiliation(s)
- Yiming Deng
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Duanduan Chen
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Feng Gao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Hong Lv
- Departments of Clinical Laboratory, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
| | - Guojun Zhang
- Departments of Clinical Laboratory, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
| | - Xuan Sun
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Lian Liu
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Dapeng Mo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Ning Ma
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Ligang Song
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Xiaochuan Huo
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Tianyi Yan
- School of Life Science, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Jingbo Zhang
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China
| | - Yun Luo
- Departments of Neurology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, 210008, People's Republic of China.
| | - Zhongrong Miao
- Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100050, People's Republic of China.
- China National Clinical Research Center for Neurological Diseases, Beijing, 100070, People's Republic of China.
- Center of Stroke, Beijing Institute for Brain Disorders, Beijing, 100069, People's Republic of China.
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Jiang X, Ning Q. The mechanisms of lncRNA GAS5 in cardiovascular cells and its potential as novel therapeutic target. J Drug Target 2020; 28:1012-1017. [PMID: 32396741 DOI: 10.1080/1061186x.2020.1769108] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Long noncoding RNAs (lncRNAs) are a large class of non (protein)-coding RNAs, which are longer beyond 200 nucleotides. LncRNA GAS5 is widely considered as a tumour suppressor in cell proliferation, apoptosis, cell migration and invasion of tumour cells. Recently, a growing body of evidences indicated that GAS5 was also widely involved in the pathologic process of cardiovascular cells, including regulation of apoptosis and inflammatory injury of cardiomyocytes; proliferation, apoptosis, autophagy and angiogenesis of endothelial cells; and proliferation, migration, apoptosis and differentiation of VSMCs. In this regard, we summarised current studies of GAS5 in cardiovascular cells, which shed light on not only our understanding of the mechanisms of GAS5 in cardiovascular cells but also understanding of the potential of GAS5 as novel therapeutic target.
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Affiliation(s)
- Xiaoying Jiang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Qilan Ning
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, China
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Li J, Lv H, Che YQ. Long non-coding RNA Gas5 potentiates the effects of microRNA-21 downregulation in response to ischaemic brain injury. Neuroscience 2020; 437:87-97. [PMID: 31982471 DOI: 10.1016/j.neuroscience.2020.01.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 01/07/2020] [Accepted: 01/08/2020] [Indexed: 12/28/2022]
Abstract
Brain ischaemia, which can cause severe nerve injury, is a global health challenge. Long non-coding RNA (lncRNA) growth-arrest specific 5 (Gas5) has been documented to exert tumour suppressive effects in several cancers. However, its role in cerebrovascular disease still requires further investigation. Therefore, in this study, we focused on the role of lncRNA regulatory signalling related to lncRNA Gas5 in ischaemic brain injury. Middle cerebral artery occlusion (MCAO) was employed as a model of ischaemic brain injury in rats. The expression of lncRNA Gas5 and microRNA-21 (miR-21) was altered in neurons to elucidate their effects in ischaemic brain injury and to identify the interactions among lncRNA Gas5, miR-21 and Pten. The neuronal survival rate, apoptosis and the expression of phosphatidyl inositol 3-kinase (PI3K)/Akt signalling pathway-related genes were also evaluated in vitro to determine the effects of lncRNA Gas5. In the brains of rats subjected to MCAO, the expression of lncRNA Gas5 and Pten was upregulated, while miR-21 was downregulated. LncRNA Gas5 inhibited miR-21 expression, leading to elevated levels of Pten. In vitro experiments revealed that lncRNA Gas5 depletion and miR-21 elevation resulted in the suppression of neuronal apoptosis, thus promoting neuronal survival via the PI3K/Akt signalling pathway. These findings demonstrate that lncRNA Gas5 increases miR-21 and activates Pten, contributing to the development of ischaemic brain injury, supporting the silencing of lncRNA Gas5 as a possible therapeutic target for the treatment of ischaemic brain injury.
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Affiliation(s)
- Jie Li
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, PR China
| | - Hui Lv
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, PR China
| | - Yu-Qin Che
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang 110032, PR China.
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Shu K, Zhang Y. Protodioscin protects PC12 cells against oxygen and glucose deprivation-induced injury through miR-124/AKT/Nrf2 pathway. Cell Stress Chaperones 2019; 24:1091-1099. [PMID: 31446555 PMCID: PMC6882996 DOI: 10.1007/s12192-019-01031-w] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 12/13/2022] Open
Abstract
The purpose of the current study was to demonstrate the neuroprotective effect of protodioscin (Prot) in an in vitro model of ischemia/reperfusion (I/R) and investigate the underlying molecular mechanism. After PC12 cells were exposed to oxygen and glucose deprivation (OGD) reperfusion, PI staining by flow cytometry was used to quantify the rate of apoptosis. The levels of hypoxia-inducible factor 1-alpha (HIF-1α), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) were determined using commercially available kits. Intracellular reactive oxygen species (ROS) level was detected using the 20,70-dichlorodihy-drofluorescein diacetate (DCFH-DA) fluorescence assay. The expression levels of heat-shock proteins (HSP), PI3K, AKT, Nrf2, and miR-124 were tested by western blot or quantitative PCR. Prot significantly attenuated oxygen-glucose deprivation/reperfusion (OGD/R)-induced apoptotic death. Prot also reduced the oxidative stress as revealed by increasing the activities of SOD and GSH-Px, decreasing the levels of ROS and MDA. Moreover, mechanism investigations suggested that Prot prevented the decrease of HSP70, HSP32 (hemeoxygenase-1, HO-1), and PI3K protein expression, phosphorylation of AKT, and the accumulation of nuclear Nrf2. The level of miR-124 was decreased in PC12 cells, which was also effectively reversed by Prot treatment. Prot protected PC12 cells against OGD/R-induced injury through inhibiting oxidative stress and apoptosis, which could be associated with increasing HSP proteins expression via activating PI3K/AKT/Nrf2 pathway and miR-124 modulation.
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Affiliation(s)
- Kun Shu
- Department of Medicine, Xi'an Jiaotong University, Xi'an, Shanxi, China
| | - Yuelin Zhang
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, 277, Yanta Road., Xi'an City, 710061, Shanxi Province, China.
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9
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HOXA11-AS promotes the migration and invasion of hepatocellular carcinoma cells by inhibiting miR-124 expression by binding to EZH2. Hum Cell 2019; 32:504-514. [DOI: 10.1007/s13577-019-00269-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 06/29/2019] [Indexed: 12/19/2022]
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10
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Zheng X, Lei B, Lin Y, Sui M, Zhang M, Zhuang Z, Dong J, Jin D, Yan T. Long noncoding RNA MEG3 silencing protects against hypoxia‐induced pheochromocytoma‐12 cell injury through inhibition of TIMP2 promoter methylation. J Cell Physiol 2019; 235:1649-1662. [PMID: 31392726 DOI: 10.1002/jcp.29085] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 06/21/2019] [Indexed: 01/23/2023]
Affiliation(s)
- Xiu‐Yuan Zheng
- Department of Rehabilitation Medicine, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Bing‐Xi Lei
- Department of Rehabilitation Medicine, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Yang‐Yang Lin
- Department of Rehabilitation Medicine, The Sixth Affiliated Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Ming‐Hong Sui
- Department of Rehabilitation Medicine, Shenzhen Nanshan People's Hospital (The Sixth People's Hospital of Shenzhen) Shenzhen University Shenzhen P.R. China
| | - Ma‐Lan Zhang
- Department of Rehabilitation Medicine, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Zhi‐Qiang Zhuang
- Department of Rehabilitation Medicine, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Jun‐Tao Dong
- Department of Rehabilitation Medicine, The Third Affiliated Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Dong‐Mei Jin
- Department of Rehabilitation Medicine, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou P.R. China
| | - Tie‐Bin Yan
- Department of Rehabilitation Medicine, Sun Yat‐sen Memorial Hospital Sun Yat‐sen University Guangzhou P.R. China
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Song Y, Li Z, He T, Qu M, Jiang L, Li W, Shi X, Pan J, Zhang L, Wang Y, Zhang Z, Tang Y, Yang GY. M2 microglia-derived exosomes protect the mouse brain from ischemia-reperfusion injury via exosomal miR-124. Am J Cancer Res 2019; 9:2910-2923. [PMID: 31244932 PMCID: PMC6568171 DOI: 10.7150/thno.30879] [Citation(s) in RCA: 280] [Impact Index Per Article: 56.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/02/2019] [Indexed: 12/23/2022] Open
Abstract
Rationale: Microglia play a critical role in modulating cell death and neurobehavioral recovery in response to brain injury either by direct cell-cell interaction or indirect secretion of trophic factors. Exosomes secreted from cells are well documented to deliver bioactive molecules to recipient cells to modulate cell function. Here, we aimed to identify whether M2 microglia exert neuroprotection after ischemic attack through an exosome-mediated cell-cell interaction. Methods: M2 microglia-derived exosomes were intravenously injected into the mouse brain immediately after middle cerebral artery occlusion. Infarct volume, neurological score, and neuronal apoptosis were examined 3 days after ischemic attack. Exosome RNA and target protein expression levels in neurons and brain tissue were determined for the mechanistic study. Results: Our results showed that the M2 microglia-derived exosomes were taken up by neurons in vitro and in vivo. M2 microglia-derived exosome treatment attenuated neuronal apoptosis after oxygen-glucose deprivation (p<0.05). In vivo results showed that M2 microglia-derived exosome treatment significantly reduced infarct volume and attenuated behavioral deficits 3 days after transient brain ischemia (p<0.05), whereas injection of miR-124 knockdown (miR-124k/d) M2 microglia-derived exosomes partly reversed the neuroprotective effect. Our mechanistic study further demonstrated that ubiquitin-specific protease 14 (USP14) was the direct downstream target of miR-124. Injection of miR-124k/d M2 exosomes plus the USP14 inhibitor, IU1, achieved comparable neuroprotective effect as injection of M2 exosomes alone. Conclusions: We demonstrated that M2 microglia-derived exosomes attenuated ischemic brain injury and promoted neuronal survival via exosomal miR-124 and its downstream target USP14. M2 microglia-derived exosomes represent a promising avenue for treating ischemic stroke.
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