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Mably JD, Wang DZ. Long non-coding RNAs in cardiac hypertrophy and heart failure: functions, mechanisms and clinical prospects. Nat Rev Cardiol 2024; 21:326-345. [PMID: 37985696 PMCID: PMC11031336 DOI: 10.1038/s41569-023-00952-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/16/2023] [Indexed: 11/22/2023]
Abstract
The surge in reports describing non-coding RNAs (ncRNAs) has focused attention on their possible biological roles and effects on development and disease. ncRNAs have been touted as previously uncharacterized regulators of gene expression and cellular processes, possibly working to fine-tune these functions. The sheer number of ncRNAs identified has outpaced the capacity to characterize each molecule thoroughly and to reliably establish its clinical relevance; it has, nonetheless, created excitement about their potential as molecular targets for novel therapeutic approaches to treat human disease. In this Review, we focus on one category of ncRNAs - long non-coding RNAs - and their expression, functions and molecular mechanisms in cardiac hypertrophy and heart failure. We further discuss the prospects for this specific class of ncRNAs as novel targets for the diagnosis and treatment of these conditions.
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Affiliation(s)
- John D Mably
- Center for Regenerative Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
- USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - Da-Zhi Wang
- Center for Regenerative Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
- USF Health Heart Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
- Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
- Department of Molecular Pharmacology and Physiology, Morsani College of Medicine, University of South Florida, Tampa, FL, USA.
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Liu J, Xiao Y, Cao L, Lu S, Zhang S, Yang R, Wang Y, Zhang N, Yu Y, Wang X, Guo W, Wang Z, Xu H, Xing C, Song X, Cao L. Insights on E1-like enzyme ATG7: functional regulation and relationships with aging-related diseases. Commun Biol 2024; 7:382. [PMID: 38553562 PMCID: PMC10980737 DOI: 10.1038/s42003-024-06080-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Accepted: 03/20/2024] [Indexed: 04/02/2024] Open
Abstract
Autophagy is a dynamic self-renovation biological process that maintains cell homeostasis and is responsible for the quality control of proteins, organelles, and energy metabolism. The E1-like ubiquitin-activating enzyme autophagy-related gene 7 (ATG7) is a critical factor that initiates classic autophagy reactions by promoting the formation and extension of autophagosome membranes. Recent studies have identified the key functions of ATG7 in regulating the cell cycle, apoptosis, and metabolism associated with the occurrence and development of multiple diseases. This review summarizes how ATG7 is precisely programmed by genetic, transcriptional, and epigenetic modifications in cells and the relationship between ATG7 and aging-related diseases.
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Affiliation(s)
- Jingwei Liu
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
- Department of Anus and Intestine Surgery, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yutong Xiao
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Liangzi Cao
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Songming Lu
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Siyi Zhang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Ruohan Yang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Yubang Wang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Naijin Zhang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Department of Cardiology, First Hospital of China Medical University, Key Laboratory of Environmental Stress and Chronic Disease Control and Prevention, Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Yang Yu
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Xiwen Wang
- Department of Thoracic Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wendong Guo
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Zhuo Wang
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China
| | - Hongde Xu
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China.
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China.
| | - Chengzhong Xing
- Department of Anus and Intestine Surgery, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China.
| | - Xiaoyu Song
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China.
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China.
| | - Liu Cao
- The College of Basic Medical Science, Health Sciences Institute, China Medical University, Shenyang, Liaoning, China.
- Key Laboratory of Cell Biology of Ministry of Public Health, Key Laboratory of Medical Cell Biology of Ministry of Education, Key Laboratory of Precision Diagnosis and Treatment of Gastrointestinal Tumors (China Medical University), Ministry of Education, Liaoning Province Collaborative Innovation Center of Aging Related Disease Diagnosis and Treatment and Prevention, China Medical University, Shenyang, Liaoning, China.
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Li Z, Pang Y, Hou L, Xing X, Yu F, Gao M, Wang J, Li X, Zhang L, Xiao Y. Exosomal OIP5-AS1 attenuates cerebral ischemia-reperfusion injury by negatively regulating TXNIP protein stability and inhibiting neuronal pyroptosis. Int Immunopharmacol 2024; 127:111310. [PMID: 38103409 DOI: 10.1016/j.intimp.2023.111310] [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: 10/17/2023] [Revised: 11/15/2023] [Accepted: 11/26/2023] [Indexed: 12/19/2023]
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) can cause neuronal apoptosis and lead to irreversible brain injury. Numerous lncRNAs have been reported to play important roles in CIRI, but it is unclear whether these lncRNAs can function through exosomes. METHODS In this study, we utilized the middle cerebral artery occlusion/reperfusion (MCAO/R) animal model and the oxygen-glucose deprivation/ reoxygenation (OGD/R) cell model. RNA sequencing was performed to screen for differentially expressed lncRNAs in M2 microglia-derived exosomes (M2-Exos). RNA pull-down, RNA immunoprecipitation, co-immunoprecipitation and ubiquitination assays were used to explore the molecular mechanism of OIP5-AS1 in alleviating CIRI. RESULTS M2-Exos could alleviate nerve injury and pyroptosis after CIRI in vitro and in vivo. OIP5-AS1 was found to be significantly up-regulated in M2-Exos and down-regulated in OGD/R neurons, MCAO/R mice and ischemic stroke patients. In MCAO/R mice, OIP5-AS1 could reduce cerebral infarct size, cerebral edema and mNSS scores, and inhibit the expression levels of pyroptosis-related proteins in brain tissue. TXNIP was confirmed to be a reliable binding protein of OIP5-AS1. OIP5-AS1 overexpression significantly attenuated MCAO/R-induced upregulation of TXNIP at the protein level, but not at the mRNA level. OIP5-AS1 promoted the TXNIP degradation process and increased the ubiquitination of TXNIP. ITCH could bind to TXNIP. ITCH overexpression or knockdown did not alter the mRNA level of TXNIP, but negatively regulated TXNIP expression at the protein level. ITCH accelerated the degradation and ubiquitination of TXNIP, which could be attenuated by OIP5-AS1 knockdown. OIP5-AS1 could improve neuronal damage and inhibit neuronal pyroptosis through TXNIP. CONCLUSIONS M2-Exo-derived OIP5-AS1 can induce TXNIP ubiquitination and degradation by recruiting ITCH, negatively regulate TXNIP protein stability, inhibit neuronal pyroptosis, and attenuate CIRI.
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Affiliation(s)
- Zhongchen Li
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China; Department of Neurosurgery, Qilu Hospital of Shandong University, Jinan City, Shandong Province 250063, China
| | - Yuejiu Pang
- Department of Healthcare Neurology, Provincial Hospital Affiliated to Shandong First Medical University, Jinan City, Shandong Province 250021, China
| | - Lei Hou
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China
| | - Xiaohui Xing
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China
| | - Fuhua Yu
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China
| | - Mingxu Gao
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China
| | - Jiyue Wang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China
| | - Xueyuan Li
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China.
| | - Liyong Zhang
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China.
| | - Yilei Xiao
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng City, Shandong Province 252000, China.
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Tan W, Ma J, Fu J, Wu B, Zhu Z, Huang X, Du M, Wu C, Balawi E, Zhou Q, Zhang J, Liao Z. Transcriptomic and bioinformatics analysis of the mechanism by which erythropoietin promotes recovery from traumatic brain injury in mice. Neural Regen Res 2024; 19:171-179. [PMID: 37488864 PMCID: PMC10479836 DOI: 10.4103/1673-5374.374135] [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: 10/05/2022] [Revised: 02/04/2023] [Accepted: 03/11/2023] [Indexed: 07/26/2023] Open
Abstract
Recent studies have found that erythropoietin promotes the recovery of neurological function after traumatic brain injury. However, the precise mechanism of action remains unclear. In this study, we induced moderate traumatic brain injury in mice by intraperitoneal injection of erythropoietin for 3 consecutive days. RNA sequencing detected a total of 4065 differentially expressed RNAs, including 1059 mRNAs, 92 microRNAs, 799 long non-coding RNAs, and 2115 circular RNAs. Kyoto Encyclopedia of Genes and Genomes and Gene Ontology analyses revealed that the coding and non-coding RNAs that were differentially expressed after traumatic brain injury and treatment with erythropoietin play roles in the axon guidance pathway, Wnt pathway, and MAPK pathway. Constructing competing endogenous RNA networks showed that regulatory relationship between the differentially expressed non-coding RNAs and mRNAs. Because the axon guidance pathway was repeatedly enriched, the expression of Wnt5a and Ephb6, key factors in the axonal guidance pathway, was assessed. Ephb6 expression decreased and Wnt5a expression increased after traumatic brain injury, and these effects were reversed by treatment with erythropoietin. These findings suggest that erythropoietin can promote recovery of nerve function after traumatic brain injury through the axon guidance pathway.
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Affiliation(s)
- Weilin Tan
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jun Ma
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jiayuanyuan Fu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Biying Wu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ziyu Zhu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xuekang Huang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Mengran Du
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Chenrui Wu
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ehab Balawi
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qiang Zhou
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jie Zhang
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhengbu Liao
- Department of Neurosurgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Wang F, Ma Q, Dong X, Wang T, Ma C. circ-Gucy1a2 Protects Mice from Cerebral Ischemia-Reperfusion Injury by Attenuating Neuronal Apoptosis and Mitochondrial Membrane Potential Loss. J INVEST SURG 2023; 36:2152509. [PMID: 37277119 DOI: 10.1080/08941939.2022.2152509] [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: 07/15/2022] [Accepted: 11/22/2022] [Indexed: 06/07/2023]
Abstract
Cerebral ischemia-reperfusion (I/R) injury (CI/RI) is a severe problem in patients with cerebral ischemia. The current study explored the influences of circular (circ)-Gucy1a2 on neuronal apoptosis and mitochondrial membrane potential (MMP) in the brain tissue of CI/RI mice. Forty-eight mice were randomized into the sham group, transient middle cerebral artery occlusion (tMCAO) group, lentivirus negative control (LV-NC) group, and LV-Gucy1a2 group. Mice were first injected with lentivirus loaded with LV-Gucy1a2 or LV-NC via lateral ventricle, followed by the establishment of CI/RI models 2 weeks later. Twenty-four hours after CI/RI, the neurological impairment of mice was assessed using a 6-point scoring system. The cerebral infarct volume and brain histopathological changes were determined in CI/RI mice through histological staining. In vitro, pcDNA3.1-NC and pcDNA3.1-Gucy1a2 were transfected into mouse primary cortical neurons for 48 hours, followed by the establishment of oxygen-glucose deprivation/reoxygenation (OGD/R) models. The levels of circ-Gucy1a2 in mouse brain tissues and neurons were examined using RT-qPCR. Neuronal proliferation and apoptosis, MMP loss, and oxidative stress (OS)-related indexes in neurons were detected using CCK-8 assay, flow cytometry, JC-1 staining, and H2DFFDA staining. CI/RI mouse models and OGD/R cell models were successfully established. After CI/RI, neurons in mice were impaired and the cerebral infarction volume was increased. circ-Gucy1a2 was poorly expressed in CI/RI mouse brain tissues. Overexpression of circ-Gucy1a2 increased OGD/R-induced neuronal proliferation and mitigated apoptosis, MMP loss, and OS. Overall, circ-Gucy1a2 was down-regulated in brain tissues of CI/RI mice, and overexpression of circ-Gucy1a2 can protect mice from CI/RI.
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Affiliation(s)
- Fei Wang
- Department of Neurology, The First People's Hospital of Jiashan County, Jiaxing, Zhejiang Province, China
| | - Qian Ma
- Department of Neurology, The First People's Hospital of Jiashan County, Jiaxing, Zhejiang Province, China
| | - Xinglu Dong
- Department of Neurology, The First People's Hospital of Jiashan County, Jiaxing, Zhejiang Province, China
| | - Tinghuan Wang
- Department of Neurology, The First People's Hospital of Jiashan County, Jiaxing, Zhejiang Province, China
| | - Chao Ma
- Department of Rehabilitation Medicine, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
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Yuan ZL, Mo YZ, Li DL, Xie L, Chen MH. Inhibition of ERK downregulates autophagy via mitigating mitochondrial fragmentation to protect SH-SY5Y cells from OGD/R injury. Cell Commun Signal 2023; 21:204. [PMID: 37580749 PMCID: PMC10426156 DOI: 10.1186/s12964-023-01211-3] [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: 03/03/2023] [Accepted: 07/01/2023] [Indexed: 08/16/2023] Open
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) is the main cause leading to high mortality and neurological disability in patients with cardiac arrest/cardiopulmonary resuscitation (CA/CPR). Our previous study found that extracellular signal-regulated kinase (ERK) activation, dynamin-related protein1 (Drp1)/Mitofusin2 (Mfn2)-dependent mitochondrial dynamics imbalance, and excessive autophagy were involved in the mechanism of nerve injury after CA/CPR. However, the specific pathological signaling pathway is still unknown. This study aimed to explore the molecular function changes of ERK-Drp1/Mfn2-autophagy signaling pathway in SH-SY5Y cell oxygen-glucose deprivation/reoxygenation (OGD/R) model, to further clarify the pathophysiological mechanism of CIRI, and to provide a new strategy for cerebral protection after CIRI. METHODS SH-SY5Y cells were pretreated with drugs 24 h before OGD/R. The Drp1 and Mfn2 knockdown were adopted small interfering RNAs. The overexpression of p-Drp1S616 and Mfn2 were used recombinant plasmids. The expression levels of mitochondrial dynamics proteins (p-Drp1, Drp1, Mfn2, Mfn1 and Opa1) and autophagy markers (LC3, Beclin1 and p62) were measured with the Western blotting. The mRNA levels after transfection were determined by PCR. Cell injury and viability were evaluated with released LDH activity and CCK8 assay kits. Mitochondria morphology and autophagosome were observed under transmission electron microscopy. Mitochondrial function was detected by the mitochondrial permeability transition pore assay kit. The co-expression of p-ERK, p-Drp1 and LC3 was assessed with multiple immunofluorescences. One-way analysis of variance followed by least significance difference post hoc analysis (for equal homogeneity) or Dunnett's T3 test (for unequal homogeneity) were used for statistical tests. RESULTS ERK inhibitor-PD98059 (PD) protects SH-SY5Y cells from OGD/R-induced injury; while ERK activator-TPA had the opposite effect. Similar to autophagy inhibitor 3-MA, PD downregulated autophagy to improve cell viability; while autophagy activator-rapamycin further aggravated cell death. PD and Drp1-knockdown synergistically attenuated OGD/R-induced Drp1 activation, mPTP opening and cell injury; overexpression of Drp1S616E or ablating Mfn2 partly abolished the protective effects of PD. Multiple immunofluorescences showed that p-ERK, p-Drp1 and LC3 were co-expressed. CONCLUSION Inhibition of ERK downregulates autophagy via reducing Drp1/Mfn2-dependent mitochondrial fragmentation to antagonize mitochondrial dysfunction and promotes cell survival in the SH-SY5Y cells OGD/R model. Video Abstract.
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Affiliation(s)
- Zhang-Li Yuan
- Department of Emergency Medicine, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530007, Guangxi, People's Republic of China
| | - Yan-Zi Mo
- Intensive Care Unit, The Second Affiliated Hospital of Guangxi Medical University, 166 Daxuedong Road, Guangxi, 530007, Nanning, People's Republic of China
| | - De-Li Li
- Guangxi Medical University, 22 Shuangyong Road, Guangxi, 530021, Nanning, People's Republic of China
| | - Lu Xie
- Guangxi Medical University, 22 Shuangyong Road, Guangxi, 530021, Nanning, People's Republic of China.
| | - Meng-Hua Chen
- Intensive Care Unit, The Second Affiliated Hospital of Guangxi Medical University, 166 Daxuedong Road, Guangxi, 530007, Nanning, People's Republic of China.
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Li J, Liu W, Peng F, Cao X, Xie X, Peng C. The multifaceted biology of lncR-Meg3 in cardio-cerebrovascular diseases. Front Genet 2023; 14:1132884. [PMID: 36968595 PMCID: PMC10036404 DOI: 10.3389/fgene.2023.1132884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
Cardio-cerebrovascular disease, related to high mortality and morbidity worldwide, is a type of cardiovascular or cerebrovascular dysfunction involved in various processes. Therefore, it is imperative to conduct additional research into the pathogenesis and new therapeutic targets of cardiovascular and cerebrovascular disorders. Long non-coding RNAs (lncRNAs) have multiple functions and are involved in nearly all cellular biological processes, including translation, transcription, signal transduction, and cell cycle control. LncR-Meg3 is one of them and is becoming increasingly popular. By binding proteins or directly or competitively binding miRNAs, LncR-Meg3 is involved in apoptosis, inflammation, oxidative stress, endoplasmic reticulum stress, epithelial-mesenchymal transition, and other processes. Recent research has shown that LncR-Meg3 is associated with acute myocardial infarction and can be used to diagnose this condition. This article examines the current state of knowledge regarding the expression and regulatory function of LncR-Meg3 in relation to cardiovascular and cerebrovascular diseases. The abnormal expression of LncR-Meg3 can influence neuronal cell death, inflammation, apoptosis, smooth muscle cell proliferation, etc., thereby aggravating or promoting the disease. In addition, we review the bioactive components that target lncR-Meg3 and propose some potential delivery vectors. A comprehensive and in-depth analysis of LncR-Meg3’s role in cardiovascular disease suggests that targeting LncR-Meg3 may be an alternative therapy in the near future, providing new options for slowing the progression of cardiovascular disease.
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Affiliation(s)
- Jing Li
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wenxiu Liu
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fu Peng
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaofang Xie, ; Cheng Peng,
| | - Xiaoyu Cao
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofang Xie
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaofang Xie, ; Cheng Peng,
| | - Cheng Peng
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaofang Xie, ; Cheng Peng,
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8
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Tang B, Luo Z, Zhang R, Zhang D, Nie G, Li M, Dai Y. An update on the molecular mechanism and pharmacological interventions for Ischemia-reperfusion injury by regulating AMPK/mTOR signaling pathway in autophagy. Cell Signal 2023; 107:110665. [PMID: 37004834 DOI: 10.1016/j.cellsig.2023.110665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/27/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023]
Abstract
AMP-activated protein kinase (5'-adenosine monophosphate-activated protein kinase, AMPK)/mammalian target of rapamycin (mTOR) is an important signaling pathway maintaining normal cell function and homeostasis in vivo. The AMPK/mTOR pathway regulates cellular proliferation, autophagy, and apoptosis. Ischemia-reperfusion injury (IRI) is secondary damage that frequently occurs clinically in various disease processes and treatments, and the exacerbated injury during tissue reperfusion increases disease-associated morbidity and mortality. IRI arises from multiple complex pathological mechanisms, among which cell autophagy is a focus of recent research and a new therapeutic target. The activation of AMPK/mTOR signaling in IRI can modulate cellular metabolism and regulate cell proliferation and immune cell differentiation by adjusting gene transcription and protein synthesis. Thus, the AMPK/mTOR signaling pathway has been intensively investigated in studies focused on IRI prevention and treatment. In recent years, AMPK/mTOR pathway-mediated autophagy has been found to play a crucial role in IRI treatment. This article aims to elaborate the action mechanisms of AMPK/mTOR signaling pathway activation in IRI and summarize the progress of AMPK/mTOR-mediated autophagy research in the field of IRI therapy.
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Affiliation(s)
- Bin Tang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Zhijian Luo
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Rong Zhang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Dongmei Zhang
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China
| | - Guojun Nie
- The First Outpatient Department of People's Liberation Army Western Theater General Hospital, Cheng Du, Sichuan Province 61000, China
| | - Mingxing Li
- Department of Ultrasound, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
| | - Yan Dai
- Department of pharmacy, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
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9
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Liu X, Wang Z, Zhang X, Zhang D, Yang Q, Hu P, Li F. LncRNA MEG3 activates CDH2 expression by recruitment of EP300 in valproic acid-induced autism spectrum disorder. Neurosci Lett 2022; 783:136726. [PMID: 35697159 DOI: 10.1016/j.neulet.2022.136726] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 06/02/2022] [Accepted: 06/09/2022] [Indexed: 12/19/2022]
Abstract
LncRNAs partake in the biological processes contributing to development of autism spectrum disorder (ASD). The aim of the present study is to investigate the effects of lncRNA maternally expressed gene 3 (MEG3) on viability and apoptosis of hippocampal neurons from ASD rats. Rats with ASD were induced using valproic acid (VPA) with normal saline (NS) as control. We performed microarray analysis on hippocampal tissues of NS rats and ASD rats to screen the differentially expressed lncRNAs. MEG3 loss in rats alleviated the impairment of learning and memory abilities induced by VPA, and promoted neuronal viability and inhibited apoptosis. MEG3 could recruit the transcription factor E1A binding protein p300 (EP300) in the nucleus and promote the cadherin 2 (CDH2) expression. CDH2 depletion in rats ameliorated the impairment of learning and memory capacities in ASD rats. After upregulation of CDH2 in neurons with sh-MEG3, we found diminished viability and increased apoptosis in hippocampal neurons of ASD rats. Taken together, MEG3 supports activation of CDH2 via EP300, thus repressing the viability of hippocampal neurons. Therefore, MEG3 upregulation may be partially responsible for the pathogenesis of ASD.
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Affiliation(s)
- Xiaoli Liu
- Department of Rehabilitation, Children's Hospital of Shanxi Province, Taiyuan 030025, Shanxi, PR China
| | - Zhenfang Wang
- Department of Rehabilitation, Children's Hospital of Shanxi Province, Taiyuan 030025, Shanxi, PR China
| | - Xi Zhang
- Department of Rehabilitation, Children's Hospital of Shanxi Province, Taiyuan 030025, Shanxi, PR China
| | - Dingxiang Zhang
- Department of Rehabilitation, Children's Hospital of Shanxi Province, Taiyuan 030025, Shanxi, PR China
| | - Qinghua Yang
- Department of Rehabilitation, Children's Hospital of Shanxi Province, Taiyuan 030025, Shanxi, PR China
| | - Pengjuan Hu
- Department of Cardiology, Children's Hospital of Shanxi Province, Taiyuan 030025, Shanxi, PR China
| | - Feng Li
- Department of Cell Biology, Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan 030013, Shanxi, PR China.
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10
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Arruri V, Vemuganti R. Role of autophagy and transcriptome regulation in acute brain injury. Exp Neurol 2022; 352:114032. [PMID: 35259350 PMCID: PMC9187300 DOI: 10.1016/j.expneurol.2022.114032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 02/17/2022] [Accepted: 02/28/2022] [Indexed: 01/18/2023]
Abstract
Autophagy is an evolutionarily conserved intracellular system that routes distinct cytoplasmic cargo to lysosomes for degradation and recycling. Accumulating evidence highlight the mechanisms of autophagy, such as clearance of proteins, carbohydrates, lipids and damaged organelles. The critical role of autophagy in selective degradation of the transcriptome is still emerging and could shape the total proteome of the cell, and thus can regulate the homeostasis under stressful conditions. Unregulated autophagy that potentiates secondary brain damage is a key pathological features of acute CNS injuries such as stroke and traumatic brain injury. This review discussed the mutual modulation of autophagy and RNA and its significance in mediating the functional consequences of acute CNS injuries.
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Affiliation(s)
- Vijay Arruri
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA
| | - Raghu Vemuganti
- Department of Neurological Surgery, University of Wisconsin, Madison, WI, USA; William S. Middleton Memorial Veteran Administration Hospital, Madison, WI, USA.
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11
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Cao Y, Liu J, Lu Q, Huang K, Yang B, Reilly J, Jiang N, Shu X, Shang L. An update on the functional roles of long non‑coding RNAs in ischemic injury (Review). Int J Mol Med 2022; 50:91. [PMID: 35593308 PMCID: PMC9170192 DOI: 10.3892/ijmm.2022.5147] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/05/2022] [Indexed: 11/20/2022] Open
Abstract
Ischemic injuries result from ischemia and hypoxia in cells. Tissues and organs receive an insufficient supply of nutrients and accumulate metabolic waste, which leads to the development of inflammation, fibrosis and a series of other issues. Ischemic injuries in the brain, heart, kidneys, lungs and other organs can cause severe adverse effects. Acute renal ischemia induces acute renal failure, heart ischemia induces myocardial infarction and cerebral ischemia induces cerebrovascular accidents, leading to loss of movement, consciousness and possibly, life-threatening disabilities. Existing evidence suggests that long non-coding RNAs (lncRNAs) are regulatory sequences involved in transcription, post-transcription, epigenetic regulation and multiple physiological processes. lncRNAs have been shown to be differentially expressed following ischemic injury, with the severity of the ischemic injury being affected by the upregulation or downregulation of certain types of lncRNA. The present review article provides an extensive summary of the functional roles of lncRNAs in ischemic injury, with a focus on the brain, heart, kidneys and lungs. The present review mainly summarizes the functional roles of lncRNA MALAT1, lncRNA MEG3, lncRNA H19, lncRNA TUG1, lncRNA NEAT1, lncRNA AK139328 and lncRNA CAREL, among which lncRNA MALAT1, in particular, plays a crucial role in ischemic injury and is currently a hot research topic.
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Affiliation(s)
- Yanqun Cao
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Jia Liu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Quzhe Lu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Kai Huang
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Baolin Yang
- Department of Human Anatomy, School of Basic Medicine, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - James Reilly
- Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow G4 0BA, UK
| | - Na Jiang
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi 330006, P.R. China
| | - Xinhua Shu
- School of Basic Medical Sciences, Shaoyang University, Shaoyang, Hunan 422000, P.R. China
| | - Lei Shang
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology and Visual Science, Jiangxi Clinical Research Center for Ophthalmic Disease, Nanchang, Jiangxi 330006, P.R. China
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