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Genena SESR, Fadhil MM, Mansour MM, Attwa AHM, Khalil MMIM. Expression pattern of long non-coding RNAs MALAT1 and MEG3 in COVID-19 patients. J Gene Med 2023; 25:e3532. [PMID: 37209019 DOI: 10.1002/jgm.3532] [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: 09/01/2022] [Revised: 03/24/2023] [Accepted: 05/05/2023] [Indexed: 05/21/2023] Open
Abstract
BACKGROUND COVID-19 is a novel infectious disease for which no specific treatment exists. It is likely that a combination of genetic and non-genetic factors predispose to it. Expression levels of genes that are involved in the interaction with SARS-CoV-2 or the host response are thought to play a role in disease susceptibility and severity. It is crucial to explore biomarkers for disease severity and outcome. Herein, we studied the expression levels and effects of long non-coding metastasis-associated lung adenocarcinoma transcript 1 (lnc-MALAT1) and long non-coding maternally expressed gene 3 (lnc-MEG3) in COVID-19 patients. The study enrolled 35 hospitalized and 35 non-hospitalized COVID-19 patients, and 35 healthy controls. A chest computed tomography (CT) scan, complete blood count (CBC), ferritin, C-reactive protein (CRP), D-dimer and analysis of lnc-MALAT1 and lnc-MEG3 expression were done. RESULTS There was a significant relation between ferritin, CRP, D-dimer levels, oxygen saturation, CT-CORADS score and disease severity. Lnc-MALAT1 was significantly higher but lnc-MEG3 was significantly lower in patients vs. controls, and in hospitalized vs. non-hospitalized patients. Elevated MALAT1 and reduced MEG3 levels were significantly associated with more elevated ferritin, CRP, D-dimer levels, lower oxygen saturation, higher CT-CORADS score and poor survival. Moreover, MALAT1 and MEG3 levels displayed higher sensitivity and specificity as predictors of COVID-19 severity compared with other prognostic biochemical markers such as ferritin, CRP, and D-dimer. CONCLUSIONS MALAT1 levels are higher, whereas MEG3 levels are lower in COVID-19 patients. Both are linked to disease severity and mortality and could emerge as predictive biomarkers for COVID-19 severity and therapeutic targets.
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Affiliation(s)
- Shaimaa El Sayed Ramadan Genena
- Department of Medical Biochemistry and Molecular Biology, Faculty of Medicine, Menoufia University, Menoufia Governorate, Egypt
| | - Maher Mishaal Fadhil
- Department of Zoology Physiology, Faculty of Science, Menoufia University, Menoufia Governorate, Egypt
| | - Manal Monir Mansour
- Department of Clinical Pathology, Faculty of Medicine, Menoufia University, Menoufia Governorate, Egypt
| | - Asrar Helal Mahrous Attwa
- Department of Chest disease and Tuberculosis, Faculty of Medicine, Menoufia University, Menoufia Governorate, Egypt
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Zhang Y, Gao Z, Jiang F, Yan H, Yang B, He Q, Luo P, Xu Z, Yang X. JAK-STAT signaling as an ARDS therapeutic target: Status and future trends. Biochem Pharmacol 2023; 208:115382. [PMID: 36528067 DOI: 10.1016/j.bcp.2022.115382] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/08/2022] [Accepted: 12/09/2022] [Indexed: 12/15/2022]
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by noncardiogenic pulmonary edema. It has a high mortality rate and lacks effective pharmacotherapy. With the outbreak of COVID-19 worldwide, the mortality of ARDS has increased correspondingly, which makes it urgent to find effective targets and strategies for the treatment of ARDS. Recent clinical trials of Janus kinase (JAK) inhibitors in treating COVID-19-induced ARDS have shown a positive outcome, which makes the Janus kinase/signal transducer and activator of transcription (JAK/STAT) pathway a potential therapeutic target for treating ARDS. Here, we review the complex cause of ARDS, the molecular JAK/STAT pathway involved in ARDS pathology, and the progress that has been made in strategies targeting JAK/STAT to treat ARDS. Specifically, JAK/STAT signaling directly participates in the progression of ARDS or colludes with other pathways to aggravate ARDS. We summarize JAK and STAT inhibitors with ARDS treatment benefits, including inhibitors in clinical trials and preclinical studies and natural products, and discuss the side effects of the current JAK inhibitors to reveal future trends in the design of JAK inhibitors, which will help to develop effective treatment strategies for ARDS in the future.
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Affiliation(s)
- Yuanteng Zhang
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Institute of Drug Discovery and Design, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Zizheng Gao
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Feng Jiang
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Hao Yan
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Bo Yang
- Institute of Pharmacology & Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China
| | - Qiaojun He
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Innovation Institute for Artificial Intelligence in Medicine of Zhejiang University, Hangzhou 310018, Zhejiang, China; Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310009, Zhejiang, China
| | - Peihua Luo
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China; Hangzhou Institute of Innovative Medicine, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhifei Xu
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China.
| | - Xiaochun Yang
- Center for Drug Safety Evaluation and Research of Zhejiang University, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, Zhejiang, China.
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Liu Z, Yang Y. Ginkgolide A Participates in LPS-Induced PMVEC Injury by Regulating miR-224 and Inhibiting p21 in a Targeted Manner. CONTRAST MEDIA & MOLECULAR IMAGING 2022; 2022:6384334. [PMID: 36134118 PMCID: PMC9482518 DOI: 10.1155/2022/6384334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/04/2022]
Abstract
Most studies have focused on the protective effects of ginkgolide A against ischemia/reperfusion-induced cardiomyopathy and injury of the brain, liver, and other organs, but there are few reports about the protection of lung tissues. This study was designed to clarify the protection of ginkgolide A against lipopolysaccharide (LPS)-induced pulmonary microvascular endothelial cell (PMVEC) injury. PMVECs were extracted and fell into control, LPS, and ginkgolide A groups. Next, we delved into the growth activity and apoptosis rate of cells via the CCK-8 assay and Hoechst staining, independently. Beyond that, western blotting (WB) was implemented for measurement of the expressions of cyclin D1, cyclin-dependent kinase 4 (CDK4), and CDK inhibitor (p21) that pertained to the cell cycle. The target sites of ginkgolide A were confirmed by miRNA array and real-time quantitative PCR. The relationship between miR-224 and p21 was analyzed using dual-luciferase reporter gene assay. Compared with the control group, the LPS group and ginkgolide A group had significantly decreased cell growth activity and relative expressions of cyclin D1 and CDK4 and elevated apoptosis rate and p21 expression. Pronounced elevations were observable in the cell growth activity and expressions of cyclin D1, CDK4, and p21, while the ginkgolide A group presented with a reduced apoptosis rate in comparison with the LPS group (P < 0.05). MiR-224 was the target of ginkgolide A, which had targeted regulatory effects on p21. Ginkgolide A can modulate miR-224 expression and regulate p21 expression in a targeted manner to enhance the resistance of PMVECs to LPS-induced cell apoptosis.
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Affiliation(s)
- Zhonglin Liu
- Department of Traditional Chinese Medicine, Affiliated Nanhua Hospital University of South China, Hengyang 421000, Hunan, China
| | - Yan Yang
- Department of Pain Medicine, Affiliated Nanhua Hospital University of South China, Hengyang 421000, Hunan, China
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Gong X, Zhu L, Liu J, Li C, Xu Z, Liu J, Zhang H. MIR3142HG promotes lipopolysaccharide-induced acute lung injury by regulating miR-450b-5p/HMGB1 axis. Mol Cell Biochem 2021; 476:4205-4215. [PMID: 34338955 DOI: 10.1007/s11010-021-04209-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 06/14/2021] [Indexed: 12/14/2022]
Abstract
The present study aimed to evaluate the potential roles of MIR3142HG, a novel long non-coding RNA (lncRNA) in lipopolysaccharide (LPS)-induced acute lung injury (ALI). ALI was simulated by the treatment of LPS in human pulmonary microvascular endothelial cells (HPMECs). The expression of MIR3142HG, miR-450b-5p and high-mobility group box 1 (HMGB1) was determined by real-time PCR and western blotting. Functional analysis was performed through the assessment of cell viability, apoptosis and the production of proinflammatory cytokines. The interactions among MIR3142HG, miR-450b-5p and HMGB1 were analyzed by bioinformatics methods, dual-luciferase reporter and RNA pull-down assays. Using gain- and loss-of-function approaches, the in vitro functions of MIR3142HG and miR-450b-5p were subsequently assessed. MIR3142HG expression was upregulated, while miR-450b-5p was decreased in LPS-treated HPMECs. MIR3142HG knockdown protected against ALI induced by LPS through alleviating the apoptosis and inflammation of HPMECs. MIR3142HG impaired miR-450b-5p-mediated inhibition of HMGB1. Besides, the effects of MIR3142HG silencing could be alleviated by miR-4262 inhibition or HMGB1 overexpression. MIR3142HG mediated LPS-induced injury of HPMECs by targeting miR-450b-5p/HMGB1, suggesting that MIR3142HG might serve as a therapeutic potential for the treatment of ALI.
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Affiliation(s)
- Xiaolei Gong
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China
| | - Limin Zhu
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China.
| | - Jinlong Liu
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China.,Institute of Pediatric Translational Medicine, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, 200127, China
| | - Chunxiang Li
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China
| | - Zhuoming Xu
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China
| | - Jinfen Liu
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China
| | - Haibo Zhang
- Department of Cardiothoracic Surgery, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, No.1678 Dongfang Road, Pudong New Area, Shanghai, 200127, China
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Zou L, Yu Q, Zhang L, Yuan X, Fang F, Xu F. Identification of inflammation related lncRNAs and Gm33647 as a potential regulator in septic acute lung injury. Life Sci 2021; 282:119814. [PMID: 34298039 DOI: 10.1016/j.lfs.2021.119814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 10/20/2022]
Abstract
Sepsis is commonly complicated by acute lung injury (ALI). We aimed to determine the long non-coding RNAs (lncRNAs) and mRNAs expression profiles. Septic acute lung injury mouse model was established by cecal ligation and puncture. LPS was applied to induce inflammation in mouse alveolar macrophages (MH-s). Besides, LPS/Nigericin sodium salt was used to activate inflammasome in MH-s. LncRNA and mRNA profiles were detected using an Agilent microarray and identified by qPCR. Bioinformatic analyses were employed to analyze the expression profiles and multiple biological functions. Inflammation-related mRNAs were selected according to KEGG pathways and GO terms including inflammation response, immune response and cytokine activity. A network of inflammation related mRNAs and co-expressed lncRNAs was conducted. Finally, Gm33647 was identified as potential regulator in septic acute lung injury. Gm33647 was knock-downed via siRNA to explore functions. The results showed 353 differentially expressed lncRNAs and 3116 differentially expressed mRNAs were identified. Co-expression networks of lncRNA-mRNA showed Gm33647 was a hub gene. Cis- and trans-regulation analyses revealed Gm41442, Gm38850 and Gm36841 could function as a network in septic ALI. LncRNA Gm33647 was reduced by LPS and increased by inflammasome activation in MH-s. Silencing Gm33647 up-regulated IL-6, IL10 and TNF-α in MH-s. When inflammasome was activated by LPS/Nigericin sodium salt, IL-1β, IL-18 and Caspase 1 were increased by silencing Gm33647 in MH-s. These results identified inflammation related lncRNAs and Gm33647 as potential regulators in septic ALI.
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Affiliation(s)
- Liying Zou
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Qing Yu
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Luyun Zhang
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Xiu Yuan
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Fang Fang
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China
| | - Feng Xu
- Department of Critical Care Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, National Clinical Research Center for Child Health and Disorders (Chongqing), China International Science and Technology Cooperation Base of Child development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, PR China.
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6
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Zhang R, Chen L, Huang F, Wang X, Li C. Long non-coding RNA NEAT1 promotes lipopolysaccharide-induced acute lung injury by regulating miR-424-5p/MAPK14 axis. Genes Genomics 2021; 43:815-827. [PMID: 33904112 DOI: 10.1007/s13258-021-01103-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/12/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Many long non-coding RNAs (lncRNAs) have been suggested to play critical roles in acute lung injury (ALI) pathogenesis, including lncRNA nuclear enriched abundant transcript 1 (NEAT1). OBJECTIVE We aimed to further elucidate the functions and molecular mechanism of NEAT1 in ALI. METHODS Human pulmonary alveolar epithelial cells (HPAEpiCs) stimulated by lipopolysaccharide (LPS) were served as a cellular model of ALI. Cell viability and cell apoptosis were determined by cell counting kit-8 (CCK-8) assay and flow cytometry, respectively. The expression of NEAT1, microRNA-424-5p (miR-424-5p), and mitogen-activated protein kinase 14 (MAPK14) was measured by quantitative real-time polymerase chain reaction (qRT-PCR) or western blot analysis. Caspase activity was determined by caspase activity kit. The inflammatory responses were evaluated using enzyme-linked immunosorbent assay (ELISA). The oxidative stress factors were analyzed by corresponding kits. RESULTS NEAT1 was upregulated in LPS-stimulated HPAEpiCs. NEAT1 knockdown weakened LPS-induced injury by inhibiting apoptosis, inflammation and oxidative stress in HPAEpiCs. Moreover, miR-424-5p was a direct target of NEAT1, and its knockdown reversed the effects caused by NEAT1 knockdown in LPS-induced HPAEpiCs. Furthermore, MAPK14 was a downstream target of miR-424-5p, and its overexpression attenuated the effects of miR-424-5p on reduction of LPS-induced injury in HPAEpiCs. Besides, NEAT1 acted as a sponge of miR-424-5p to regulate MAPK14 expression. CONCLUSION NEAT1 knockdown alleviated LPS-induced injury of HPAEpiCs by regulating miR-424-5p/MAPK14 axis, which provided a potential therapeutic target for the treatment of ALI.
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Affiliation(s)
- Rui Zhang
- Department of Paediatrics, Suizhou Hospital, Hubei University of Medicine, Long Men Street 60th, Zeng Du District, Suizhou, 441300, Hubei, China
| | - Lina Chen
- Department of Paediatrics, Suizhou Hospital, Hubei University of Medicine, Long Men Street 60th, Zeng Du District, Suizhou, 441300, Hubei, China
| | - Fei Huang
- Department of Paediatrics, Suizhou Hospital, Hubei University of Medicine, Long Men Street 60th, Zeng Du District, Suizhou, 441300, Hubei, China
| | - Xiaorong Wang
- Department of Paediatrics, Suizhou Hospital, Hubei University of Medicine, Long Men Street 60th, Zeng Du District, Suizhou, 441300, Hubei, China
| | - Cuihong Li
- Department of Paediatrics, Suizhou Hospital, Hubei University of Medicine, Long Men Street 60th, Zeng Du District, Suizhou, 441300, Hubei, China.
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Wang H, Wang S, Huang S. MiR-494-3p alleviates acute lung injury through regulating NLRP3 activation by targeting CMPK2. Biochem Cell Biol 2021; 99:286-295. [PMID: 34037470 DOI: 10.1139/bcb-2020-0243] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
Acute lung injury (ALI) is a severe respiratory disorder with a high rate of mortality, and is characterized by excessive cell apoptosis and inflammation. MicroRNAs (miRNAs) play pivotal roles in ALI. This study examined the biological function of miR-494-3p in cell apoptosis and inflammatory response in ALI. For this, mice were injected with lipopolysaccharide (LPS) to generate an in-vivo model of ALI (ALI mice), and WI-38 cells were stimulated with lipopolysaccharide (LPS) to generate an in-vitro model of ALI. We found that miR-494-3p was significantly downregulated in the ALI mice and in the in-vitro model. Overexpression of miR-494-3p inhibited inflammation and cell apoptosis in the LPS-induced WI-38 cells, and improved the symptoms of lung injury in the ALI mice. We then identified cytidine/uridine monophosphate kinase 2 (CMPK2) as a novel target of miR-494-3p in the WI-38 cells. Furthermore, miR-494-3p suppressed cell apoptosis and the inflammatory response in LPS-treated WI-38 cells through targeting CMPK2. The NLRP3 inflammasome is reportedly responsible for the activation of inflammatory processes. In our study, CMPK2 was confirmed to activate the NLRP3 inflammasome in LPS-treated WI-38 cells. In conclusion, miR-494-3p attenuates ALI through inhibiting cell apoptosis and the inflammatory response by targeting CMPK2, which suggests the value of miR-494-3p as a target for the treatment for ALI.
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Affiliation(s)
- Hong Wang
- Operating Room, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Shuqin Wang
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
| | - Shanshan Huang
- Department of Anesthesiology, Qilu Hospital of Shandong University, Jinan 250012, Shandong, China
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8
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Zhu Y, Wang Y, Xing S, Xiong J. Blocking SNHG14 Antagonizes Lipopolysaccharides-Induced Acute Lung Injury via SNHG14/miR-124-3p Axis. J Surg Res 2021; 263:140-150. [PMID: 33652176 DOI: 10.1016/j.jss.2020.10.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 09/15/2020] [Accepted: 10/31/2020] [Indexed: 12/30/2022]
Abstract
BACKGROUND Emerging evidence show that long noncoding RNAs (lncRNAs) are crucial regulators in pathophysiology of acute lung injury (ALI). Small nucleolar RNA host gene 14 (SNHG14) is a novel oncogenic lncRNA, and has been associated with inflammation-related cell injuries. Thus, we wondered the role and mechanism of SNHG14 in lipopolysaccharides (LPS)-induced ALI cell model. METHODS Expression of SNHG14, miRNA (miR)-124-3p, and transforming growth factor β type 2 receptor (TGFBR2) was detected by RT-qPCR and western blotting. Cell apoptosis was determined by methyl thiazolyl tetrazolium assay, flow cytometry, western blotting, and lactate dehydrogenase activity kit. Inflammation was measured by enzyme-linked immunosorbent assay. The interaction among SNHG14, miR-124-3p, and TGFBR2 was validated by dual-luciferase reporter assay and RNA immunoprecipitation. RESULTS LPS administration attenuated human lung epithelial cell viability and B-cell lymphoma-2 expression, but augmented apoptosis rate, cleaved-caspase-3 expression, lactate dehydrogenase activity, and secretions of tumor necrosis factor-α, interleukin-1β, and IL-6 in A549 cells. Thus, LPS induced A549 cells apoptosis and inflammation, wherein SNHG14 was upregulated and miR-124-3p was downregulated. However, silencing SNHG14 could suppress LPS-induced apoptosis and inflammation depending on upregulating miR-124-3p via target binding. Similarly, overexpressing miR-124-3p attenuated LPS-induced A549 cells injury through inhibiting its downstream target TGFBR2. Furthermore, SNHG14 knockdown could also affect TGFBR2 expression via miR-124-3p. CONCLUSIONS SNHG14 knockdown prevents A549 cells from LPS-induced apoptosis and inflammation through regulating miR-124-3p and TGFBR2, suggesting a novel SNHG14/miR-124-3p/TGFBR2 circuit in alveolar epithelial cells on the set of ALI.
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Affiliation(s)
- Yuanbin Zhu
- Department of Respiratory, Linyi Central Hospital, Linyi, Shandong, China
| | - Yingying Wang
- Department of Respiratory, Linyi Central Hospital, Linyi, Shandong, China
| | - Shigang Xing
- Department of Respiratory, Linyi Central Hospital, Linyi, Shandong, China
| | - Jie Xiong
- Department of Respiratory, Linyi Central Hospital, Linyi, Shandong, China.
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Abstract
Osteoarthritis (OA), one of the most common motor system disorders, is a degenerative disease involving progressive joint destruction caused by a variety of factors. At present, OA has become the fourth most common cause of disability in the world. However, the pathogenesis of OA is complex and has not yet been clarified. Long non-coding RNA (lncRNA) refers to a group of RNAs more than 200 nucleotides in length with limited protein-coding potential, which have a wide range of biological functions including regulating transcriptional patterns and protein activity, as well as binding to form endogenous small interference RNAs (siRNAs) and natural microRNA (miRNA) molecular sponges. In recent years, a large number of lncRNAs have been found to be differentially expressed in a variety of pathological processes of OA, including extracellular matrix (ECM) degradation, synovial inflammation, chondrocyte apoptosis, and angiogenesis. Obviously, lncRNAs play important roles in regulating gene expression, maintaining the phenotype of cartilage and synovial cells, and the stability of the intra-articular environment. This article reviews the results of the latest research into the role of lncRNAs in a variety of pathological processes of OA, in order to provide a new direction for the study of OA pathogenesis and a new target for prevention and treatment. Cite this article: Bone Joint Res 2021;10(2):122-133.
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Affiliation(s)
- Chao Peng He
- Department of Orthopedics, The Second Affiliated Hospital, Hunan Normal University, Hunan, China
| | - Xin Chen Jiang
- Department of Orthopedics, The Second Affiliated Hospital, Hunan Normal University, Hunan, China
| | - Cheng Chen
- Department of Orthopedics, The Second Affiliated Hospital, Hunan Normal University, Hunan, China
| | - Hai Bin Zhang
- Department of Orthopedics, The Xiangya Hospital of Central South University Changsha, Hunan, China
| | - Wen Dong Cao
- Department of Orthopedics, The Second Affiliated Hospital, Hunan Normal University, Hunan, China
| | - Qi Wu
- Department of Orthopedics, The Second Affiliated Hospital, Hunan Normal University, Hunan, China
| | - Chi Ma
- Department of Orthopedics, The First Affiliated Hospital (People’s Hospital of Xiangxi Autonomous Prefecture), Jishou University, Jishou, China
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Long non-coding RNA review and implications in acute lung inflammation. Life Sci 2021; 269:119044. [PMID: 33454366 PMCID: PMC7808900 DOI: 10.1016/j.lfs.2021.119044] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Revised: 01/03/2021] [Accepted: 01/04/2021] [Indexed: 02/07/2023]
Abstract
Acute lung inflammatory diseases severely affect the patients' recovery and outcomes worldwide. Unregulated acute inflammatory response is fundamentally central to acute lung inflammation including acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). To limit the potentially deleterious effects of acute lung inflammation, complex transcriptional and posttranscriptional regulatory networks have been explored, which often involves long noncoding RNAs (lncRNA). LncRNAs are RNAs that longer than 200 nucleotides, functioning as scaffolds or decoys in the cytoplasm or nucleus. By now, lncRNAs have been found to join in all major cellular processes including cell proliferation, metabolism, stress response or death. Extensive advance over the last decade furthermore indicated a fundamental role of lncRNAs in acute lung inflammation. This article reviews and summarizes the current knowledge on lncRNA in acute lung inflammatory response.
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11
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Wu X, Chen D, Yu L. The value of circulating long non-coding RNA maternally expressed gene 3 as a predictor of higher acute respiratory distress syndrome risk and 28-day mortality in sepsis patients. J Clin Lab Anal 2020; 34:e23488. [PMID: 32844492 PMCID: PMC7676220 DOI: 10.1002/jcla.23488] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Revised: 07/01/2020] [Accepted: 07/03/2020] [Indexed: 12/13/2022] Open
Abstract
Objective This study was to evaluate the potential of long non‐coding RNA maternally expressed gene 3 (lncRNA MEG3) in predicting acute respiratory distress syndrome (ARDS) risk and its correlation with prognosis in sepsis patients. Methods The plasma samples were obtained from 112 sepsis patients within 24 hours after admission and 100 healthy controls (HCs) at enrollment. The lncRNA MEG3 expression in plasma samples was determined by RT‐qPCR. In sepsis patients, ARDS occurrence was assessed based on Berlin definition of ARDS and 28‐day mortality risk was evaluated. Results LncRNA MEG3 expression was increased in sepsis patients compared with HCs. During 28‐day duration, 30 sepsis patients occurred ARDS and 82 sepsis patients did not occur ARDS. LncRNA MEG3 expression was elevated in ARDS sepsis patients compared with non‐ARDS sepsis patients, then the following receiver‐operating characteristic (ROC) curve analysis disclosed that lncRNA MEG3 predicted ARDS risk (area under the curve (AUC) = 0.775), which was further validated as an independent risk factor by multivariate logistic regression. Furthermore, lncRNA MEG3 was positively correlated with chronic obstructive pulmonary disease, respiratory infection, acute physiology and chronic health evaluation II score, sequential organ failure assessment score, white blood cell, and C‐reactive protein, while negatively correlated with albumin in sepsis patients. Additionally, lncRNA MEG3 was elevated in 28‐day deaths compared with 28‐day survivors, and it predicted 28‐day mortality risk in sepsis patients (AUC = 0.708) by ROC curve analysis. Conclusion LncRNA MEG3 might represent as a valuable biomarker for individualizing prevention strategies against ARDS and improving prognosis in sepsis.
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Affiliation(s)
- Xiaoling Wu
- Department of Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dan Chen
- Department of Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li Yu
- Department of Intensive Care Unit, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Xiao F, Li L, Fu JS, Hu YX, Luo R. Regulation of the miR-19b-mediated SOCS6-JAK2/STAT3 pathway by lncRNA MEG3 is involved in high glucose-induced apoptosis in hRMECs. Biosci Rep 2020; 40:BSR20194370. [PMID: 32519748 PMCID: PMC7327180 DOI: 10.1042/bsr20194370] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 06/03/2020] [Accepted: 06/04/2020] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVE Diabetic retinopathy (DR) is one of the most severe and common complications of diabetes mellitus. The present study aimed to investigate the molecular mechanism of MEG3, miR-19b and SOCS6 in human retinal microvascular endothelial cells (hRMECs) under high glucose conditions. METHODS HRMECs were cultured in 5 or 30 mM D-glucose medium. qRT-PCR and Western blotting were used to determine the mRNA expression and protein levels. MTT assay and flow cytometry analysis were performed to detect the viability and apoptosis of hRMECs, respectively. TNF-α, IL-6 and IL-1β levels in cell supernatants were detected by ELISA. The activity of caspase-3/7 was also determined. A luciferase reporter assay was performed to confirm the targeting relationship between miR-19b and SOCS6, as well as MEG3 and miR-19b. RESULTS Our study demonstrated that miR-19b was increased and SOCS6 was decreased in HG-induced hRMECs. Knockdown of SOCS6 inhibited cell viability and reversed the promotion of cell viability induced by knockdown of miR-19b. Additionally, miR-19b directly targeted and negatively regulated SOCS6. Moreover, miR-19b promoted the cell apoptosis rate and caspase-3/7 activity and increased inflammatory factors through the SOCS6-mediated JAK2/STAT3 signalling pathway. In addition, MEG3 attenuated HG-induced apoptosis of hRMECs by targeting the miR-19b/SOCS6 axis. CONCLUSION These findings indicate that MEG3 inhibited HG-induced apoptosis and inflammation by regulating the miR-19b/SOCS6 axis through the JAK2/STAT3 signalling pathway in hRMECs. Thus, these findings might provide a new target for the treatment of DR.
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Affiliation(s)
- Fan Xiao
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Lan Li
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Jing-Song Fu
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Yu-Xiang Hu
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi Province, China
| | - Rong Luo
- Department of Ophthalmology, Jiangxi Provincial People’s Hospital Affiliated to Nanchang University, Nanchang 330006, Jiangxi Province, China
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Jiang ZF, Zhang L, Shen J. MicroRNA: Potential biomarker and target of therapy in acute lung injury. Hum Exp Toxicol 2020; 39:1429-1442. [PMID: 32495695 DOI: 10.1177/0960327120926254] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
MicroRNAs (miRNAs) are small noncoding RNAs stretching over 18-22 nucleotides and considered to be modifiers of many respiratory diseases. They are highly evolutionary conserved and have been implicated in several biological processes, including cell proliferation, apoptosis, differentiation, among others. Acute lung injury (ALI) is a fatal disease commonly caused by direct or indirect injury factors and has a high mortality rate in intensive care unit. Changes in expression of several types of miRNAs have been reported in patients with ALI. Some miRNAs suppress cellular injury and accelerate the recovery of ALI by targeting specific molecules and decreasing excessive immune response. For this reason, miRNAs are proposed as potential biomarkers for ALI and as therapeutic targets for this disease. This review summarizes current evidence supporting the role of miRNAs in ALI.
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Affiliation(s)
- Z-F Jiang
- Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - L Zhang
- Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai, People's Republic of China
| | - J Shen
- Center of Emergency & Intensive Care Unit, Medical Center of Chemical Injury, Jinshan Hospital, Fudan University, Shanghai, People's Republic of China
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Zou DM, Zhou SM, Li LH, Zhou JL, Tang ZM, Wang SH. Knockdown of Long Noncoding RNAs of Maternally Expressed 3 Alleviates Hyperoxia-Induced Lung Injury via Inhibiting Thioredoxin-Interacting Protein-Mediated Pyroptosis by Binding to miR-18a. THE AMERICAN JOURNAL OF PATHOLOGY 2020; 190:994-1005. [PMID: 32084370 DOI: 10.1016/j.ajpath.2019.12.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 12/04/2019] [Accepted: 12/19/2019] [Indexed: 12/20/2022]
Abstract
Long-term hyperoxia exposure may cause lung damage with characteristic inflammation. Long noncoding RNA of maternally expressed 3 (MEG3) is up-regulated in lung tissues exposed to hyperoxia; however, the underlying mechanism is unclear. Hyperoxia-induced cells and mouse models were used to study these mechanisms. Molecular assays were used to detect cell viability, cytotoxicity, and expression of miR-18a, MEG3, and inflammatory cytokines. The interaction among MEG3, miR-18a, and thioredoxin-interacting protein (TXNIP) was verified; and pyroptosis-related proteins were analyzed. The in vivo model was established by exposing MEG3 knockdown mice to hyperoxia. Hematoxylin and eosin staining was used to assess pathologic alterations of lung tissues. Hyperoxia suppressed cell viability, induced cell damage, and exacerbated the secretion of IL-1β and IL-18. Hyperoxia inhibited miR-18a, with increased expression of MEG3, TXNIP, and nonobese diabetic-like receptor family pyrin domain containing 3 (NLRP3). MEG3 aggravated TXNIP expression by binding to miR-18a. Knockdown of MEG3 rescued hyperoxia-induced pyroptosis by up-regulating miR-18a. Furthermore, knockdown of MEG3 inhibited NLRP3 inflammasome activity and caspase-1 signaling by miR-18a. In vivo knockdown of MEG3 and overexpression of miR-18a relieved hyperoxia-induced lung injury via restraining NLRP3 inflammasome-mediated pyroptosis, whereas miR-18a inhibition reversed these effects. In conclusion, knockdown of MEG3 inhibits pyroptosis to alleviate hyperoxia lung injury by suppressing NLRP3 inflammasome and caspase-1 signaling via regulating miR-18a-TXNIP axis.
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Affiliation(s)
- Dong-Mei Zou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, P.R. China
| | - Shao-Ming Zhou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, P.R. China
| | - Long-Hui Li
- Department of Neonatal, The First People Hospital of Yueyang, Yueyang, P.R. China
| | - Jian-Li Zhou
- Division of Gastroenterology, Shenzhen Children's Hospital, Shenzhen, P.R. China
| | - Zan-Mei Tang
- Neonatal Intensive Care Unit, Women and Children Health Institute Futian, University of South China, Shenzhen, P.R. China
| | - Shao-Hua Wang
- Neonatal Intensive Care Unit, Women and Children Health Institute Futian, University of South China, Shenzhen, P.R. China.
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lncRNAs: function and mechanism in cartilage development, degeneration, and regeneration. Stem Cell Res Ther 2019; 10:344. [PMID: 31753016 PMCID: PMC6873685 DOI: 10.1186/s13287-019-1458-8] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 09/17/2019] [Accepted: 10/16/2019] [Indexed: 02/06/2023] Open
Abstract
With the increasing incidence of cartilage-related diseases such as osteoarthritis (OA) and intervertebral disc degeneration (IDD), heavier financial and social burdens need to be faced. Unfortunately, there is no satisfactory clinical method to target the pathophysiology of cartilage-related diseases. Many gene expressions, signaling pathways, and biomechanical dysregulations were involved in cartilage development, degeneration, and regeneration. However, the underlying mechanism was not clearly understood. Recently, lots of long non-coding RNAs (lncRNAs) were identified in the biological processes, including cartilage development, degeneration, and regeneration. It is clear that lncRNAs were important in regulating gene expression and maintaining chondrocyte phenotypes and homeostasis. In this review, we summarize the recent researches studying lncRNAs’ expression and function in cartilage development, degeneration, and regeneration and illustrate the potential mechanism of how they act in the pathologic process. With continued efforts, regulating lncRNA expression in the cartilage regeneration may be a promising biological treatment approach.
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