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Yang J, Huang X, Yu Q, Wang S, Wen X, Bai S, Cao L, Zhang K, Zhang S, Wang X, Chen Z, Cai Z, Zhang G. Extracellular vesicles derived from M2-like macrophages alleviate acute lung injury in a miR-709-mediated manner. J Extracell Vesicles 2024; 13:e12437. [PMID: 38594787 PMCID: PMC11004041 DOI: 10.1002/jev2.12437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 02/22/2024] [Accepted: 03/24/2024] [Indexed: 04/11/2024] Open
Abstract
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is characterised by an uncontrolled inflammatory response, and current treatment strategies have limited efficacy. Although the protective effect of M2-like macrophages (M2φ) and their extracellular vesicles (EVs) has been well-documented in other inflammatory diseases, the role of M2φ-derived EVs (M2φ-EVs) in the pathogenesis of ALI/ARDS remains poorly understood. The present study utilised a mouse model of lipopolysaccharide-induced ALI to first demonstrate a decrease in endogenous M2-like alveolar macrophage-derived EVs. And then, intratracheal instillation of exogenous M2φ-EVs from the mouse alveolar macrophage cell line (MH-S) primarily led to a take up by alveolar macrophages, resulting in reduced lung inflammation and injury. Mechanistically, the M2φ-EVs effectively suppressed the pyroptosis of alveolar macrophages and inhibited the release of excessive cytokines such as IL-6, TNF-α and IL-1β both in vivo and in vitro, which were closely related to NF-κB/NLRP3 signalling pathway inhibition. Of note, the protective effect of M2φ-EVs was partly mediated by miR-709, as evidenced by the inhibition of miR-709 expression in M2φ-EVs mitigated their protective effect against lipopolysaccharide-induced ALI in mice. In addition, we found that the expression of miR-709 in EVs derived from bronchoalveolar lavage fluid was correlated negatively with disease severity in ARDS patients, indicating its potential as a marker for ARDS severity. Altogether, our study revealed that M2φ-EVs played a protective role in the pathogenesis of ALI/ARDS, partly mediated by miR-709, offering a potential strategy for assessing disease severity and treating ALI/ARDS.
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Affiliation(s)
- Jie Yang
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Xiaofang Huang
- Department of Critical Care MedicineQilu Hospital of Shandong UniversityJinanShandongChina
| | - Qing Yu
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Shibo Wang
- Department of Orthopedics, Institute of Immunology, the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Xuehuan Wen
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Songjie Bai
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Lanxin Cao
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Kai Zhang
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Shufang Zhang
- Department of Cardiology, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Xingang Wang
- Department of Burns & Wound Care Centre, the Second Affiliated Hospital of Zhejiang University School of Medicinethe Key Laboratory of Trauma and Burns of Zhejiang UniversityHangzhouZhejiangChina
| | - Zhanghui Chen
- Zhanjiang Institute of Clinical Medicine, Zhanjiang Central HospitalGuangdong Medical UniversityZhanjiangGuangdongChina
| | - Zhijian Cai
- Department of Orthopedics, Institute of Immunology, the Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
| | - Gensheng Zhang
- Department of Critical Care Medicine, Second Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina
- Key Laboratory of Multiple Organ Failure (Zhejiang University)Ministry of EducationHangzhouZhejiangChina
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Wang X, Mijiti W, Jia Q, Yi Z, Ma J, Zhou Z, Xie Z. Exploration of altered miRNA expression and function in MSC-derived extracellular vesicles in response to hydatid antigen stimulation. Front Microbiol 2024; 15:1381012. [PMID: 38601938 PMCID: PMC11004373 DOI: 10.3389/fmicb.2024.1381012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 03/14/2024] [Indexed: 04/12/2024] Open
Abstract
Background Hydatid disease is caused by Echinococcus parasites and can affect various tissues and organs in the body. The disease is characterized by the presence of hydatid cysts, which contain specific antigens that interact with the host's immune system. Mesenchymal stem cells (MSCs) are pluripotent stem cells that can regulate immunity through the secretion of extracellular vesicles (EVs) containing microRNAs (miRNAs). Methods In this study, hydatid antigens were isolated from sheep livers and mice peritoneal cavities. MSCs derived from mouse bone marrow were treated with different hydatid antigens, and EVs were isolated and characterized from the conditioned medium of MSCs. Small RNA library construction, miRNA target prediction, and differential expression analysis were conducted to identify differentially expressed miRNAs. Functional enrichment and network construction were performed to explore the biological functions of the target genes. Real-time PCR and Western blotting were used for miRNA and gene expression verification, while ELISA assays quantified TNF, IL-1, IL-6, IL-4, and IL-10 levels in cell supernatants. Results The study successfully isolated hydatid antigens and characterized MSC-derived EVs, demonstrating the impact of antigen concentration on MSC viability. Key differentially expressed miRNAs, such as miR-146a and miR-9-5p, were identified, with functional analyses revealing significant pathways like Endocytosis and MAPK signaling associated with these miRNAs' target genes. The miRNA-HUB gene regulatory network identified crucial miRNAs and HUB genes, such as Traf1 and Tnf, indicating roles in immune modulation and osteogenic differentiation. Protein-protein interaction (PPI) network analysis highlighted central HUB genes like Akt1 and Bcl2. ALP activity assays confirmed the influence of antigens on osteogenic differentiation, with reduced ALP activity observed. Expression analysis validated altered miRNA and chemokine expression post-antigen stimulation, with ELISA analysis showing a significant reduction in CXCL1 expression in response to antigen exposure. Conclusion This study provides insights into the role of MSC-derived EVs in regulating parasite immunity. The findings suggest that hydatid antigens can modulate the expression of miRNAs in MSC-derived EVs, leading to changes in chemokine expression and osteogenic capacity. These findings contribute to a better understanding of the immunomodulatory mechanisms involved in hydatid disease and provide potential therapeutic targets for the development of new treatment strategies.
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Affiliation(s)
- Xin Wang
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
| | - Wubulikasimu Mijiti
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
| | - Qiyu Jia
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
| | - Zhifei Yi
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
| | - Junchao Ma
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
| | - Ziyu Zhou
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
| | - Zengru Xie
- Department of Orthopedics and Trauma, The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, Xinjiang, China
- Key Laboratory of High Incidence Disease Research in Xingjiang (Xinjiang Medical University), Ministry of Education, Ürümqi, Xinjiang, China
- Xinjiang Clinical Research Center for Orthopedics, Xinjiang Medical University, Ürümqi, Xinjiang, China
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Zhen Z, Wei S, Yunfei W, Jie X, Jienan X, Yiting S, Wen X, Shuyu G, Yue L, Xuanyu W, Yumei Z, Huafa Q. Astragalus polysaccharide improves diabetic ulcers by promoting M2-polarization of macrophages to reduce excessive inflammation via the β-catenin/ NF-κB axis at the late phase of wound-healing. Heliyon 2024; 10:e24644. [PMID: 38390059 PMCID: PMC10881534 DOI: 10.1016/j.heliyon.2024.e24644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 02/24/2024] Open
Abstract
Ethnopharmacological relevance Astragalus polysaccharide (APS), the most biologically active ingredient of Astragali Radix, is used to treat diabetes mellitus (DM)-related chronic wounds in traditional Chinese medicine for several decades. This herb possesses an anti-inflammatory effect. Our study proved that APS can reduce excessive inflammation at the late phase of wound-healing in diabetic ulcers. Aim of the study To clarify the molecular mechanism of APS in promoting wound-healing via reducing excessive inflammation in diabetic ulcers during the late stages of wound-healing. Methods and materials The rat model of the diabetic ulcers was established via intraperitoneal injection of streptozocin (60 mg/kg). We detected the regulation of APS on diabetic ulcers by measuring wound-healing rates. Bioinformatics was used to predict the target genes of APS, and autodocking was used to predict the combination of APS and target genes. Immunohistochemistry, Enzyme-linked immunosorbent assay, Western blot, immunofluorescence staining, flow cytometry, and flow cytometric sorting were investigated. Results The results demonstrated that APS promoted wound-healing and inhibited excessive inflammation at the late phase of wound-healing in diabetic rats. Mechanistic findings showed that APS promoted the expression of β-catenin and Rspo3 while inhibiting the expression of NF-KB and GSK-3β, which leads to the transformation of M1-type macrophages into M2-type macrophages and thus reducing excessive inflammation at the late phase of wound-healing in diabetic ulcers. Conclusion We found an interesting finding that APS promoted the polarization of macrophages towards M2-type through the β-catenin/NF-κB axis to reduce excessive inflammation at the late phase of wound-healing. Therefore, APS may be a promising drug for treating diabetic ulcers in clinic.
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Affiliation(s)
- Zhang Zhen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Shan Wei
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Wang Yunfei
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xing Jie
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xu Jienan
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Shen Yiting
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Xiao Wen
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Guo Shuyu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Liang Yue
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Wang Xuanyu
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Zhong Yumei
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
| | - Que Huafa
- Longhua Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032, China
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McIlwraith EK, Belsham DD. Palmitate alters miRNA content of small extracellular vesicles secreted from NPY/AgRP-expressing hypothalamic neurons. Brain Res 2023; 1810:148367. [PMID: 37054963 DOI: 10.1016/j.brainres.2023.148367] [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: 11/29/2022] [Revised: 04/02/2023] [Accepted: 04/09/2023] [Indexed: 04/15/2023]
Abstract
Exosomes (sEVs) are extracellular vesicles involved in the pathogenesis of obesity. Notably, exosomal microRNAs (miRNAs) have emerged as crucial mediators of communication between cells and are involved in the development of obesity. One region of the brain known to be dysregulated in obesity is the hypothalamus. It coordinates whole-body energy homeostasis through stimulation and inhibition of the orexigenic neuropeptide (NPY)/agouti-related peptide (AgRP) neurons and anorexigenic proopiomelanocortin (POMC) neurons. A role for hypothalamic astrocytic exosomes in communication with POMC neurons was previously elucidated. Yet, it was unknown whether NPY/AgRP neurons secreted exosomes. We previously established that the saturated fat palmitate alters the intracellular levels of miRNAs and we now questioned whether palmitate would also alter the miRNA content of exosomal miRNAs. We found that the mHypoE-46 cell line secreted particles consistent with the size of exosomes and that palmitate altered levels of a spectrum of miRNAs associated with exosomes. The predicted KEGG pathways of the collective miRNA predicted targets included fatty acid metabolism and insulin signaling. Of note, one of these altered secreted miRNAs was miR-2137, which was also altered within the cells. We also found that while sEVs collected from the mHypoE-46 neurons increased Pomc mRNA in the mHypoA-POMC/GFP-2 cells after 48 hours, the effect was absent with sEVs isolated following palmitate treatment, indicating another potential route by which palmitate promotes obesity. Hypothalamic neuronal exosomes may therefore play a role in the control of energy homeostasis that may be disrupted in obese conditions.
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Affiliation(s)
- Emma K McIlwraith
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8
| | - Denise D Belsham
- Department of Physiology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8; Departments of Medicine and Obstetrics and Gynaecology, Faculty of Medicine, University of Toronto, Toronto, ON M5S 1A8, Canada.
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Xiong W, Li C, Kong G, Zeng Q, Wang S, Yin G, Gu J, Fan J. Treg cell-derived exosomes miR-709 attenuates microglia pyroptosis and promotes motor function recovery after spinal cord injury. J Nanobiotechnology 2022; 20:529. [PMID: 36514078 PMCID: PMC9745961 DOI: 10.1186/s12951-022-01724-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 11/26/2022] [Indexed: 12/15/2022] Open
Abstract
Neuroinflammation is an important cause of poor prognosis in patients with spinal cord injury. pyroptosis is a new type of inflammatory cell death. Treg cells has been shown to play an anti-inflammatory role in a variety of inflammatory diseases, including inflammatory bowel disease, amyotrophic lateral sclerosis, and arthritis. However, little is known about Treg cells' potential role in pyroptosis following spinal cord injury. The aim of this research was to look into the effect of Treg cells to motor function recovery, pyroptosis and the mechanism behind it after SCI. Here, we found that pyroptosis mainly occurred in microglia on the seventh day after spinal cord injury. Konckout Treg cells resulted in widely pyroptosis and poor motor recovery after SCI. In conversely, over-infiltration of Treg cell in mice by tail vein injection had beneficial effects following SCI.Treg cell-derived exosomes promote functional recovery by inhibiting microglia pyroptosis in vivo. Bioinformatic analysis revealed that miRNA-709 was significantly enriched in Treg cells and Treg cell-secreted exosomes. NKAP has been identified as a miRNA-709 target gene. Moreover, experiments confirmed that Treg cells targeted the NKAP via exosomal miR-709 to reduce microglia pyroptosis and promote motor function recovery after SCI. More importantly, The miR-709 overexpressed exosomes we constructed significantly reduced the inflammatory response and improved motor recovery after spinal cord injury. In brief, our findings indicate a possible mechanism for communication between Treg cells and microglia, which opens up a new perspective for alleviating neuroinflammation after SCI.
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Affiliation(s)
- Wu Xiong
- grid.412676.00000 0004 1799 0784The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu China
| | - Cong Li
- grid.412676.00000 0004 1799 0784The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu China
| | - Guang Kong
- grid.89957.3a0000 0000 9255 8984Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu China
| | - Qiang Zeng
- grid.89957.3a0000 0000 9255 8984Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu China
| | - Siming Wang
- grid.412676.00000 0004 1799 0784The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu China
| | - Guoyong Yin
- grid.412676.00000 0004 1799 0784The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu China
| | - Jun Gu
- Department of Orthopedics, Xishan People’s Hospital, Wuxi, 214000 China
| | - Jin Fan
- grid.412676.00000 0004 1799 0784The First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing, Jiangsu China ,grid.89957.3a0000 0000 9255 8984Nanjing Medical University, 101 Longmian Road, Nanjing, Jiangsu China
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Piazzi M, Bavelloni A, Cenni V, Faenza I, Blalock WL. Revisiting the Role of GSK3, A Modulator of Innate Immunity, in Idiopathic Inclusion Body Myositis. Cells 2021; 10:cells10113255. [PMID: 34831477 PMCID: PMC8625526 DOI: 10.3390/cells10113255] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 12/13/2022] Open
Abstract
Idiopathic or sporadic inclusion body myositis (IBM) is the leading age-related (onset >50 years of age) autoimmune muscular pathology, resulting in significant debilitation in affected individuals. Once viewed as primarily a degenerative disorder, it is now evident that much like several other neuro-muscular degenerative disorders, IBM has a major autoinflammatory component resulting in chronic inflammation-induced muscle destruction. Thus, IBM is now considered primarily an inflammatory pathology. To date, there is no effective treatment for sporadic inclusion body myositis, and little is understood about the pathology at the molecular level, which would offer the best hopes of at least slowing down the degenerative process. Among the previously examined potential molecular players in IBM is glycogen synthase kinase (GSK)-3, whose role in promoting TAU phosphorylation and inclusion bodies in Alzheimer’s disease is well known. This review looks to re-examine the role of GSK3 in IBM, not strictly as a promoter of TAU and Abeta inclusions, but as a novel player in the innate immune system, discussing some of the recent roles discovered for this well-studied kinase in inflammatory-mediated pathology.
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Affiliation(s)
- Manuela Piazzi
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Alberto Bavelloni
- Laboratorio di Oncologia Sperimentale, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Vittoria Cenni
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
| | - Irene Faenza
- Dipartimento di Scienze Biomediche and Neuromotorie, Università di Bologna, 40136 Bologna, Italy;
| | - William L. Blalock
- “Luigi Luca Cavalli-Sforza” Istituto di Genetica Molecolare-Consiglio Nazionale delle Ricerche (IGM-CNR), 40136 Bologna, Italy; (M.P.); (V.C.)
- IRCCS, Istituto Ortopedico Rizzoli, 40136 Bologna, Italy
- Correspondence:
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Modulation of the Wound Healing through Noncoding RNA Interplay and GSK-3 β/NF- κB Signaling Interaction. Int J Genomics 2021; 2021:9709290. [PMID: 34485505 PMCID: PMC8413067 DOI: 10.1155/2021/9709290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/10/2021] [Indexed: 12/30/2022] Open
Abstract
Diabetic foot ulcers are seriously endangering the physical and mental health of patients. Due to the long duration of inflammation, the treatment of nonhealing wounds in diabetes is one of the most prominent healthcare problems in the world. The nuclear factor kappa B (NF-κB) signaling pathway, a classical pathway that triggers inflammatory response, is regulated by many regulators, such as glycogen synthase kinase 3 beta (GSK-3β). Noncoding RNAs, a large class of molecules that regulate gene expression at the posttranscriptional or posttranslational level, play an important role in various stages of wound healing, especially in the stage of inflammation. Herein, we summarized the roles of noncoding RNAs in the NF-κB/GSK-3β signaling, which might provide new ideas for the treatment of diabetic wound healing.
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Chen S, Zhu H, Sun J, Zhu L, Qin L, Wan J. Anti-inflammatory effects of miR-150 are associated with the downregulation of STAT1 in macrophages following lipopolysaccharide treatment. Exp Ther Med 2021; 22:1049. [PMID: 34434263 PMCID: PMC8353636 DOI: 10.3892/etm.2021.10483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 03/03/2020] [Indexed: 12/29/2022] Open
Abstract
Sepsis is a condition that is associated with high rates of mortality. It is characterized by serious systemic inflammatory responses induced by pathogenic invasion. Although microRNA-150 (miR-150) has been previously reported to be involved in the modulation of sepsis, the underlying molecular mechanism in sepsis remains poorly understood. In the present study, the human monocytic cell line THP-1 was treated with LPS to mimic sepsis in vitro, following which miR-150 and STAT1 expression were measured using reverse transcription-quantitative PCR or western blotting. Secretion of inflammatory cytokines interleukin (IL)-1β, IL-6 and tumor necrosis factor-α (TNF-α) into the medium were measured by ELISA. The potential relationship between STAT1 and miR-150 was determined using dual-luciferase reporter and RNA immunoprecipitation assays. miR-150 expression was found to be was downregulated by LPS treatment in THP-1 cells in both dose- and time-dependent manners. LPS treatment also induced IL-1β, IL-6 and TNF-α secretion in a manner that could be inhibited by miR-150 overexpression and enhanced by transfection with the miR-150 inhibitor. miR-150 was revealed to directly target STAT1 by negatively regulating its expression. In addition, STAT1 expression was demonstrated to be upregulated by LPS treatment. STAT1 overexpression reversed the inhibitory effects of miR-150 overexpression on IL-1β, IL-6 and TNF-α secretion whilst STAT1 knockdown attenuated IL-1β, IL-6 and TNF-α secretion induced by miR-150 inhibitor transfection. In conclusion, the present study suggested that miR-150 regulates the inflammatory response in macrophages following LPS challenge by regulating the expression of STAT1.
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Affiliation(s)
- Song Chen
- Department of Emergency and Critical Care Medicine, The People's Hospital of Pudong New Area, Shanghai University of Health and Science, Shanghai 201200, P.R. China
| | - Haijun Zhu
- Department of Emergency and Critical Care Medicine, The People's Hospital of Pudong New Area, Shanghai University of Health and Science, Shanghai 201200, P.R. China
| | - Jie Sun
- Department of Emergency and Critical Care Medicine, The People's Hospital of Pudong New Area, Shanghai University of Health and Science, Shanghai 201200, P.R. China
| | - Lili Zhu
- Department of Emergency and Critical Care Medicine, The People's Hospital of Pudong New Area, Shanghai University of Health and Science, Shanghai 201200, P.R. China
| | - Long Qin
- Department of Emergency and Critical Care Medicine, The People's Hospital of Pudong New Area, Shanghai University of Health and Science, Shanghai 201200, P.R. China
| | - Jian Wan
- Department of Emergency and Critical Care Medicine, The People's Hospital of Pudong New Area, Shanghai University of Health and Science, Shanghai 201200, P.R. China
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[Role and mechanism of circular RNA in brain injury induced by inflammation in preterm mice: a preliminary study]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2021; 23. [PMID: 34266532 PMCID: PMC8292664 DOI: 10.7499/j.issn.1008-8830.2104067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To determine the association of circular RNA (circRNA) and circRNA-microRNA (miRNA) network regulation with brain injury induced by inflammation in preterm mice. METHODS Pregnant mice were treated with intraperitoneally injected lipopolysaccharide to establish a preterm mouse model of brain injury induced by inflammation (inflammation preterm group with 3 mice). Preterm mice born to normal pregnant mice by cesarean section were selected as controls (non-inflammation preterm group with 3 mice). The gene microarray technique was used to screen out the circRNAs associated with brain injury in preterm mice. The miRNA target prediction software was used to predict the binding sites between circRNAs and miRNAs and analyze the regulatory mechanism. RESULTS A total of 365 differentially expressed circRNAs were screened out between the inflammation preterm and non-inflammation preterm groups (fold change > 1.5, P < 0.05), among which there were 206 upregulated circRNAs and 159 downregulated circRNAs. Further analysis of the circRNAs with a fold change of > 4 showed that these circRNAs could bind to miRNAs and regulate their activity, thereby regulating the expression of the genes associated with the nervous system. CONCLUSIONS Inflammation induces a significant change in the expression profile of circRNAs in the brain tissue of mice, and the change in the expression of circRNAs plays an important role in brain injury induced by inflammation and subsequent brain development in preterm mice.
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Identification of Potential Gene and MicroRNA Biomarkers of Acute Kidney Injury. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8834578. [PMID: 33506037 PMCID: PMC7810567 DOI: 10.1155/2021/8834578] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/30/2020] [Accepted: 12/16/2020] [Indexed: 12/27/2022]
Abstract
Acute kidney injury (AKI) is a disease that seriously endangers human health. At present, AKI lacks effective treatment methods, so it is particularly important to find effective treatment measures and targets. Bioinformatics analysis has become an important method to identify significant processes of disease occurrence and development. In this study, we analyzed the public expression profile with bioinformatics analysis to identify differentially expressed genes (DEGs) in two types of common AKI models (ischemia-reperfusion injury and cisplatin). DEGs were predicted in four commonly used microRNA databases, and it was found that miR-466 and miR-709 may play important roles in AKI. Then, we found key nodes through protein-protein interaction (PPI) network analysis and subnetwork analysis. Finally, by detecting the expression levels in the renal tissues of the two established AKI models, we found that Myc, Mcm5, E2f1, Oip5, Mdm2, E2f8, miR-466, and miR-709 may be important genes and miRNAs in the process of AKI damage repair. The findings of our study reveal some candidate genes, miRNAs, and pathways potentially involved in the molecular mechanisms of AKI. These data improve the current understanding of AKI and provide new insight for AKI research and treatment.
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Ardalan M, Hejazian SM, Sharabiyani HF, Farnood F, Ghafari Aghdam A, Bastami M, Ahmadian E, Zununi Vahed S, Cucchiarini M. Dysregulated levels of glycogen synthase kinase-3β (GSK-3β) and miR-135 in peripheral blood samples of cases with nephrotic syndrome. PeerJ 2020; 8:e10377. [PMID: 33362958 PMCID: PMC7749650 DOI: 10.7717/peerj.10377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Background Glycogen synthase kinase-3 (GSK-3β) is a serine/threonine kinase with multifunctions in various physiological procedures. Aberrant level of GSK-3β in kidney cells has a harmful role in podocyte injury. Methods In this article, the expression levels of GSK-3β and one of its upstream regulators, miR-135a-5p, were measured in peripheral blood mononuclear cells (PBMCs) of cases with the most common types of nephrotic syndrome (NS); focal segmental glomerulosclerosis (FSGS) and membranous glomerulonephritis (MGN). In so doing, fifty-two cases along with twenty-four healthy controls were included based on the strict criteria. Results Levels of GSK-3β mRNA and miR-135 were measured with quantitative real-time PCR. There were statistically significant increases in GSK-3β expression level in NS (P = 0.001), MGN (P = 0.002), and FSGS (P = 0.015) groups compared to the control group. Dysregulated levels of miR-135a-5p in PBMCs was not significant between the studied groups. Moreover, a significant decrease was observed in the expression level of miR-135a-5p in the plasma of patients with NS (P = 0.020), MGN (P = 0.040), and FSGS (P = 0.046) compared to the control group. ROC curve analysis approved a diagnostic power of GSK-3β in discriminating patients from healthy controls (AUC: 0.72, P = 0.002) with high sensitivity and specificity. Conclusions Dysregulated levels of GSK-3β and its regulator miR-135a may participate in the pathogenesis of NS with different etiology. Therefore, more research is needed for understanding the relationship between them.
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Affiliation(s)
| | - Seyyedeh Mina Hejazian
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Farahnoosh Farnood
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amirhossein Ghafari Aghdam
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Milad Bastami
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Ahmadian
- Kidney Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Magali Cucchiarini
- Center of Experimental Orthopaedics, Universität des Saarlandes, Homburg/Saar, Germany
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12
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Chen JX, Wang YP, Zhang X, Li GX, Zheng K, Duan CZ. lncRNA Mtss1 promotes inflammatory responses and secondary brain injury after intracerebral hemorrhage by targeting miR-709 in mice. Brain Res Bull 2020; 162:20-29. [PMID: 32442560 DOI: 10.1016/j.brainresbull.2020.04.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Revised: 04/01/2020] [Accepted: 04/27/2020] [Indexed: 01/17/2023]
Abstract
Secondary brain injuries following intracerebral hemorrhage (ICH) are mediated by inflammatory pathway activation. The present study aimed to characterize long noncoding RNAs (lncRNAs) that are differentially expressed in cerebral tissues during ICH pathogenesis and to investigate their pathogenic functions. An ICH mouse model established by collagenase injection was used to obtain differentially expressed lncRNAs for deep sequencing. A cellular inflammation model was established by treating mouse microglia with lipopolysaccharide. Expression of lncRNA and miRNA was assessed by quantitative RT-PCR, and protein abundance was measured by western blot. Cytokine levels in mouse serum and cell culture supernatants were analyzed using enzyme-linked immunosorbent assay. Cerebral injury was evaluated by hematoxylin-eosin and Nissl staining, the ratio of brain dry weight/brain wet weight, and neurobehavior scoring. Ionized calcium-binding adaptor molecule 1 (IBA1) expression in the brain sections was assessed using immunohistochemistry. A total of 3681 lncRNAs were differentially expressed in the brain tissue of the ICH mice group compared with the Sham group. Of these, lncRNA metastasis suppressor-1 (Mtss1) expression was increased. Mtss1 knockdown by siRNA in the cellular model strongly suppressed TIR-domain-containing adapter-inducing interferon-β (TRIF) expression, P65 phosphorylation, and tumor necrosis factor (TNF)-α and interleukin (IL)-1β secretion. Mtss1 knockdown in ICH mice inhibited secondary brain injury and decreased IBA1, TNF-α, and IL-1β. Mtss1 was predicted to bind miR-709, and Mtss1 knockdown elevated miR-709 expression in the cellular inflammation model and ICH mice. High expression of Mtss1 promoted inflammatory brain injuries after ICH by enhancing inflammatory cytokine secretion and targeting miR-709 expression.
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Affiliation(s)
- Jia-Xiang Chen
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China; Department of Neurosurgery, Guangzhou Red Cross Hospital, The Fourth Affiliated Hospital of Jinan University, Guangzhou, China
| | - Yi-Ping Wang
- Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-sen University, Guangdong, China
| | - Xin Zhang
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Guo-Xiong Li
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Kuang Zheng
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China
| | - Chuan-Zhi Duan
- Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China; The National Key Clinical Specialty, Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Guangzhou, China.
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13
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Gizak A, Duda P, Pielka E, McCubrey JA, Rakus D. GSK3 and miRNA in neural tissue: From brain development to neurodegenerative diseases. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2020; 1867:118696. [PMID: 32165184 DOI: 10.1016/j.bbamcr.2020.118696] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/28/2020] [Accepted: 03/08/2020] [Indexed: 12/12/2022]
Abstract
MicroRNAs (miRs) are small RNAs modulating gene expression and creating intricate regulatory networks that are dysregulated in many pathological states, including neurodegenerative disorders. In silico analyses denote a multifunctional kinase glycogen synthase kinase-3 (GSK3) as a putative target of numerous miRs identified in neural tissue. GSK3 is engaged in almost all aspects of neuronal development and functioning. Moreover, there is an autoregulatory feedback between GSK3 and miRNAs as the kinase can influence biogenesis of miRs. Members of the miR-GSK3 axes might thus represent convenient therapeutic targets in neuropathologies that display its abnormal regulation. This review summarizes the present knowledge about direct interactions of GSK3 and miRs in brain, and their putative roles in pathogenesis of neurodegenerative and neuropsychiatric disorders. This article is part of a Special Issue entitled: GSK-3 and related kinases in cancer, neurological and other disorders edited by James McCubrey, Agnieszka Gizak and Dariusz Rakus.
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Affiliation(s)
- Agnieszka Gizak
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Wrocław 50-137, Poland.
| | - Przemysław Duda
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Wrocław 50-137, Poland
| | - Ewa Pielka
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Wrocław 50-137, Poland
| | - James A McCubrey
- Department of Microbiology and Immunology, Brody School of Medicine at East Carolina University Greenville, NC 27858, USA
| | - Dariusz Rakus
- Department of Molecular Physiology and Neurobiology, University of Wrocław, Wrocław 50-137, Poland
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Ni D, Huang X, Wang Z, Deng L, Zeng L, Zhang Y, Lu D, Zou X. Expression characterization and transcription regulation analysis of porcine Yip1 domain family member 3 gene. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2019; 33:398-407. [PMID: 31480180 PMCID: PMC7054614 DOI: 10.5713/ajas.19.0076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 06/20/2019] [Indexed: 01/17/2023]
Abstract
Objective The Yip1 domain family (YIPF) proteins were proposed to function in endoplasmic reticulum (ER) to Golgi transport and maintenance of the morphology of the Golgi, which were homologues of yeast Yip1p and Yif1p. YIPF3, the member 3 of YIPF family was a homolog of Yif1p. The aim of present study was to investigate the expression and regulation mechanism of porcine YIPF3. Methods Quantitative realtime polymerase chain reaction (qPCR) was used to analyze porcine YIPF3 mRNA expression pattern in different tissues and pig kidney epithelial (PK15) cells stimulated by polyinosine-polycytidylic acid (poly [I:C]). Site-directed mutations combined with dual luciferase reporter assays and electrophoretic mobility shift assay (EMSA) were employed to reveal transcription regulation mechanism of porcine YIPF3. Results Results showed that the mRNA of porcine YIPF3 (pYIPF3) was widely expressed with the highest levels in lymph and lung followed by spleen and liver, while weak in heart and skeletal muscle. Subcellular localization results indicated that it expressed in Golgi apparatus and plasma membranes. Upon stimulation with poly (I:C), the level of this gene was dramatically up-regulated in a time- and concentration-dependent manner. pYIPF3 core promoter region harbored three cis-acting elements which were bound by ETS proto-oncogene 2 (ETS2), zinc finger and BTB domain containing 4 (ZBTB4), and zinc finger and BTB domain containing 14 (ZBTB14), respectively. In which, ETS2 and ZBTB4 both promoted pYIPF3 transcription activity while ZBTB14 inhibited it, and these three transcription factors all played important regulation roles in tumorigenesis and apoptosis. Conclusion The pYIPF3 mRNA expression was regulated by ETS2, ZBTB4, and ZBTB14, and its higher expression in immune organs might contribute to enhancing ER to Golgi transport of proteins, thus adapting to the immune response.
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Affiliation(s)
- Dongjiao Ni
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Xiang Huang
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Zhibo Wang
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Lin Deng
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Li Zeng
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Yiwei Zhang
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Dongdong Lu
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
| | - Xinhua Zou
- Key Laboratory of Biological Feed of Ministry of Agriculture and Rural Affairs, Boen Biotechnology Co. Ltd, Guangzhou 511400, China
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Augmenting canonical Wnt signalling in therapeutically inert cells converts them into therapeutically potent exosome factories. Nat Biomed Eng 2019; 3:695-705. [PMID: 31451800 PMCID: PMC6736698 DOI: 10.1038/s41551-019-0448-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 07/16/2019] [Indexed: 01/02/2023]
Abstract
Cardiosphere-derived cells (CDCs) are therapeutic candidates with disease-modifying bioactivity, but their variable potency has complicated their clinical translation. Transcriptomic analyses of CDCs from human donors have revealed that the therapeutic potency of these cells correlates with Wnt/β-catenin signalling and with β-catenin protein levels. Here, we show that skin fibroblasts engineered to overexpress β-catenin and the transcription factor Gata4 become immortal and therapeutically potent. Transplantation of the engineered fibroblasts into a mouse model of acute myocardial infarction led to improved cardiac function and mouse survival. And in the mdx mouse model of Duchenne muscular dystrophy, exosomes secreted by the engineered fibroblasts improved exercise capacity and reduced skeletal-muscle fibrosis. We also demonstrate that exosomes from high-potency CDCs exhibit enhanced levels of miR-92a (a known potentiator of the Wnt/β-catenin pathway), and that they activate cardioprotective bone-morphogenetic-protein signalling in cardiomyocytes. Our findings show that the modulation of canonical Wnt signalling can turn therapeutically inert mammalian cells into immortal exosome factories for cell-free therapies. Overexpression of β-catenin and the transcription factor Gata4 in skin fibroblasts converts them into therapeutically active cells that secrete reparative exosomes as shown in mice models of myocardial infarction and Duchenne muscular dystrophy.
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16
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Zhang S, He K, Zhou W, Cao J, Jin Z. miR‑494‑3p regulates lipopolysaccharide‑induced inflammatory responses in RAW264.7 cells by targeting PTEN. Mol Med Rep 2019; 19:4288-4296. [PMID: 30942409 PMCID: PMC6471187 DOI: 10.3892/mmr.2019.10083] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 01/28/2019] [Indexed: 12/28/2022] Open
Abstract
MicroRNAs (miRNAs/miRs) serve important roles in regulating inflammatory responses at the post-transcriptional level. In the present study, the limma package was used to analyze the GSE43300 array dataset downloaded from the Gene Expression Omnibus database. It was identified that several miRNAs, including miR-494-3p, were upregulated in lipopolysaccharide (LPS)-treated RAW264.7 macrophages compared to control cells. Transfection experiments indicated that overexpressing miR-494-3p inhibited production of LPS-induced proinflammatory cytokines, including interleukin-1β and tumor necrosis factor-α. Conversely, knockdown of miR-494-3p enhanced cytokine expression. Bioinformatics prediction and luciferase assay both revealed that miR-494-3p could directly target phosphatase and tensin homolog (PTEN) and upregulate protein kinase B activity. In addition, miR-494-3p mimics suppressed p65 translocation to the nucleus. Similar effects were observed following PTEN silencing. In conclusion, the results of the present study revealed that miR-494-3p may act as an important immune regulator in LPS-stimulated macrophages, and be an effective therapeutic target for treating infections in the future.
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Affiliation(s)
- Si Zhang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Kang He
- Department of Periodontology, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Weiwei Zhou
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Jun Cao
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Zuolin Jin
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
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17
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Duan Q, Sun W, Yuan H, Mu X. MicroRNA-135b-5p prevents oxygen-glucose deprivation and reoxygenation-induced neuronal injury through regulation of the GSK-3β/Nrf2/ARE signaling pathway. Arch Med Sci 2018; 14:735-744. [PMID: 30002689 PMCID: PMC6040137 DOI: 10.5114/aoms.2017.71076] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 08/30/2017] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION MicroRNAs (miRNAs) are emerging as critical regulators in the pathological process of cerebral ischemia/reperfusion injury. miRNAs play an important role in regulating neuronal survival. miR-135b-5p has been reported as an important miRNA in regulating cell apoptosis. However, the role of miR-135b-5p in regulating neuronal survival remains poorly understood. Here, we aimed to investigate the role of miR-135b-5p in cerebral ischemia/ reperfusion using an in vitro model of oxygen-glucose deprivation and reoxygenation-(OGD/R) induced neuron injury. MATERIAL AND METHODS miRNA, mRNA and protein expression was detected by real-time quantitative polymerase chain reaction and Western blot. Cell viability was detected by cell counting kit-8 and lactate dehydrogenase assays. Cell apoptosis was detected by caspase-3 activity assay. Oxidative stress was determined using commercial kits. The target of miR-135b-5p was confirmed by dual-luciferase reporter assay. RESULTS We found that miR-135b-5p expression was significantly decreased in hippocampal neurons receiving OGD/R treatment. Overexpression of miR-135b-5p markedly alleviated OGD/R-induced cell injury and oxidative stress, whereas suppression of miR-135b-5p showed the opposite effects. We observed that miR-135b-5p directly targeted the 3'-untranslated region of glycogen synthase kinase-3β (GSK-3β). We found that miR-135b-5p negatively regulates the expression of GSK-3β in hippocampal neurons. Moreover, miR-135b-5p overexpression promotes activation of nuclear factor erythroid 2-related factor 2 (Nrf2)/antioxidant response element (ARE) signaling. However, the restoration of GSK-3β expression significantly reversed the protective effects of miR-135b-5p overexpression. CONCLUSIONS Overall, our results suggest that miR-135b-5p protects neurons against OGD/R-induced injury through downregulation of GSK-3β and promotion of the Nrf2/ARE signaling pathway-mediated antioxidant responses.
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Affiliation(s)
- Qiang Duan
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Wei Sun
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Hua Yuan
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
| | - Xiang Mu
- Department of Rehabilitation Medicine, Xijing Hospital, The Fourth Military Medical University, Xi'an, China
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18
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Liu X, Li M, Hou M, Huang W, Song J. MicroRNA-135a alleviates oxygen-glucose deprivation and reoxygenation-induced injury in neurons through regulation of GSK-3β/Nrf2 signaling. J Biochem Mol Toxicol 2018; 32:e22159. [PMID: 29719095 DOI: 10.1002/jbt.22159] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 12/21/2022]
Abstract
MicroRNAs (miRNAs) have been suggested as pivotal regulators in the pathological process of cerebral ischemia and reperfusion injury. In this study, we aimed to investigate the role of miR-135a in regulating neuronal survival in cerebral ischemia and reperfusion injury using an in vitro cellular model induced by oxygen-glucose deprivation and reoxygenation (OGD/R). Our results showed that miR-135a expression was significantly decreased in neurons with OGD/R treatment. Overexpression of miR-135a significantly alleviated OGD/R-induced cell injury and oxidative stress, whereas inhibition of miR-135a showed the opposite effects. Glycogen synthase kinase-3β (GSK-3β) was identified as a potential target gene of miR-135a. miR-135a was found to inhibit GSK-3β expression, but promote the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and downstream signaling. However, overexpression of GSK-3β significantly reversed miR-135a-induced neuroprotective effect. Overall, our results suggest that miR-135a protects neurons against OGD/R-induced injury through downregulation of GSK-3β and upregulation of Nrf2 signaling.
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Affiliation(s)
- Xiaobin Liu
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Min Li
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Mingshan Hou
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Weidong Huang
- Department of Neurosurgery, The Third Affiliated Hospital of Xi'an Jiaotong University, Shaanxi Provincial People's Hospital, Xi'an, Shaanxi 710068, People's Republic of China
| | - Jinning Song
- Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, People's Republic of China
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Guo Y, Ni J, Chen S, Bai M, Lin J, Ding G, Zhang Y, Sun P, Jia Z, Huang S, Yang L, Zhang A. MicroRNA-709 Mediates Acute Tubular Injury through Effects on Mitochondrial Function. J Am Soc Nephrol 2018; 29:449-461. [PMID: 29042455 PMCID: PMC5791060 DOI: 10.1681/asn.2017040381] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 09/20/2017] [Indexed: 12/21/2022] Open
Abstract
Mitochondrial dysfunction has important roles in the pathogenesis of AKI, yet therapeutic approaches to improve mitochondrial function remain limited. In this study, we investigated the pathogenic role of microRNA-709 (miR-709) in mediating mitochondrial impairment and tubular cell death in AKI. In a cisplatin-induced AKI mouse model and in biopsy samples of human AKI kidney tissue, miR-709 was significantly upregulated in the proximal tubular cells (PTCs). The expression of miR-709 in the renal PTCs of patients with AKI correlated with the severity of kidney injury. In cultured mouse PTCs, overexpression of miR-709 markedly induced mitochondrial dysfunction and cell apoptosis, and inhibition of miR-709 ameliorated cisplatin-induced mitochondrial dysfunction and cell injury. Further analyses showed that mitochondrial transcriptional factor A (TFAM) is a target gene of miR-709, and genetic restoration of TFAM attenuated mitochondrial dysfunction and cell injury induced by cisplatin or miR-709 overexpression in vitro Moreover, antagonizing miR-709 with an miR-709 antagomir dramatically attenuated cisplatin-induced kidney injury and mitochondrial dysfunction in mice. Collectively, our results suggest that miR-709 has an important role in mediating cisplatin-induced AKI via negative regulation of TFAM and subsequent mitochondrial dysfunction. These findings reveal a pathogenic role of miR-709 in acute tubular injury and suggest a novel target for the treatment of AKI.
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Affiliation(s)
- Yan Guo
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Jiajia Ni
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Shuang Chen
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Mi Bai
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, China; and
| | - Jiajuan Lin
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Guixia Ding
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Yue Zhang
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Pingping Sun
- Renal Division, Peking University First Hospital, Beijing, China
| | - Zhanjun Jia
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, China; and
| | - Songming Huang
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
| | - Li Yang
- Renal Division, Peking University First Hospital, Beijing, China
| | - Aihua Zhang
- Department of Nephrology, State Key Laboratory of Reproductive Medicine, Children's Hospital of Nanjing Medical University, Nanjing, China;
- Jiangsu Key Laboratory of Pediatrics, Nanjing Medical University, Nanjing, China
- Nanjing Key Laboratory of Pediatrics, Children's Hospital of Nanjing Medical University, Nanjing, China; and
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Kumar Kingsley SM, Vishnu Bhat B. Role of MicroRNAs in the development and function of innate immune cells. Int Rev Immunol 2017; 36:154-175. [DOI: 10.1080/08830185.2017.1284212] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- S. Manoj Kumar Kingsley
- Department of Neonatology, Jawaharlal Institute of Post Graduate Medical Education and Research (JIPMER), Puducherry, India
| | - B. Vishnu Bhat
- Department of Neonatology, Jawaharlal Institute of Post Graduate Medical Education and Research (JIPMER), Puducherry, India
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Chen W, Ma X, Zhang P, Li Q, Liang X, Liu J. MiR-212-3p inhibits LPS-induced inflammatory response through targeting HMGB1 in murine macrophages. Exp Cell Res 2017; 350:318-326. [DOI: 10.1016/j.yexcr.2016.12.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/01/2016] [Accepted: 12/07/2016] [Indexed: 11/24/2022]
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