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Zhao F, Wei W, Huang D, Guo Y. Knockdown of miR-27a reduces TGFβ-induced EMT and H 2O 2-induced oxidative stress through regulating mitochondrial autophagy. Am J Transl Res 2023; 15:6071-6082. [PMID: 37969181 PMCID: PMC10641347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 09/22/2023] [Indexed: 11/17/2023]
Abstract
OBJECTIVES The present research aimed at clarifying the role played by miR-27a in the context of intrauterine adhesion (IUA) by focusing on its impact on TGFβ1-induced epithelial-mesenchymal transition (EMT), migration, oxidative stress, and mitochondrial autophagy in endometrial stromal cells (ESCs). METHODS We employed the Cell Counting Kit CCK-8/WST-8 assay to assess ESC proliferation, flow cytometric analysis and an Annexin-V-FITCV-FITC Apoptosis Detection kit to determine cell apoptosis, and wound healing and transwell assays to evaluate cell migration. Besides, intracellular reactive oxygen species (ROS) levels measured by the Reactive Oxygen Species Assay Kit were analyzed by flow cytometry, and protein expression levels were quantified by Western blotting analysis. RESULTS Knockdown of miR-27a inhibited TGFβ1-induced EMT and H2O2-induced oxidative stress in ESCs. H2O2-induced miR-27a suppressed PINK1 expression, leading to inhibition of mitophagy. MiR-27a promoted TGFβ1 or H2O2-induced EMT through PINK1. CONCLUSIONS miR-27a plays a crucial role in endometrial fibrosis. It regulates TGFβ1-induced EMT, migration, oxidative stress, and apoptosis in ESCs. Additionally, miR-27a impacts mitophagy through PINK1 suppression upon H2O2 induction. Our findings highlight miR-27a as a potential therapeutic target for IUA treatment, shedding light on its multifaceted involvement in the mechanism of intrauterine adhesion fibrosis.
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Affiliation(s)
- Fangfang Zhao
- Department of Gynaecology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530022, Guangxi, P. R. China
| | - Wei Wei
- Department of Gynaecology, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530022, Guangxi, P. R. China
| | - Dongping Huang
- School of Public Health, Guangxi Medical UniversityNanning 530020, Guangxi, P. R. China
| | - Yi Guo
- Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical UniversityNanning 530022, Guangxi, P. R. China
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Dong M, Wang X, Li T, Jing Y, Liu Y, Zhao H. miR-27a-3p alleviates lung transplantation-induced bronchiolitis obliterans syndrome (BOS) via suppressing Smad-mediated myofibroblast differentiation and TLR4-induced dendritic cells maturation. Transpl Immunol 2023; 78:101806. [PMID: 36925075 DOI: 10.1016/j.trim.2023.101806] [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: 08/31/2022] [Revised: 02/03/2023] [Accepted: 02/21/2023] [Indexed: 03/17/2023]
Abstract
BACKGROUND Bronchiolitis obliterans syndrome (BOS), induced by a chronic rejection, remains a significant obstacle for end-stage lung diseases after lung transplantation. We have previously determined that the small non-coding mRNA (miRNA) miR-27a-3p maintained the immature state of dendritic cells (DCs) via the interleukin 10 (IL-10)-dependent regulatory pathway. Such status helped in preventing rejection and alleviating BOS. The present study explored mechanisms how miR-27a-3p may suppress the fibrosis as well as the maturation of DCs, ultimately attenuating BOS in vitro and in vivo. METHODS/RESULTS In our tracheal transplantation mouse model, the expression of Smad2, Smad4, and αSMA were significantly decreased in the miR-27a-3p-transfected DCs (p < 0.0001, p = 0.0006, and p = 0.0002 respectively). Moreover, the expression of fibrosis markers (α-SMA, collagen I, and Fn) were potently inhibited in the miR-27a-3p-transfected NIH-3 T3 cells (p < 0.0001, p = 0.00148, and p < 0.0001 respectively). At the same time, reversed results were observed in the inhibitor group (p = 0.0002, p < 0.0001, and p < 0.0001 respectively), indicating that miR-27a-3p could directly inhibit myofibroblast differentiation. Furthermore, in the tracheal transplanted mice, the population of Treg cells was significantly decreased (p < 0.0001). In contrast, Th17 cells were down-regulated in the miR-27a-3p-transfected DCs group (p < 0.0001), accompanied by the decreased IL-17 levels (p = 0.0007) and the induction of TGF-β1 and IL-10 (p < 0.0001 and p = 0.0016 respectively). Further mechanistic studies indicated that miR-27a-3p altered the maturation of DCs by targeting TLR4 and IRAK (p < 0.0001 and p = 0.0002 respectively). CONCLUSIONS Our study suggests that miR-27a-3p selectively blocked the TGF-β1/Smad pathways to suppress the myofibroblast differentiation and targeted the TRL4/IRAK4 pathway to restrain DCs maturation, thus attenuating BOS. Our findings suggest that miR-27a-3p is a potential active molecule on BOS management after lung transplantation.
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Affiliation(s)
- Ming Dong
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital; Anshan Road No.154, Heping District, Tianjin 300052, China.
| | - Xin Wang
- Department of Pediatric Surgery, Tianjin Children's Hospital, No.238 LongYan Road, Tianjin 300134, China
| | - Tong Li
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital; Anshan Road No.154, Heping District, Tianjin 300052, China
| | - Yaqing Jing
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road, No.22, Heping District, Tianjin 300070, China
| | - Yi Liu
- Department of Genetics, School of Basic Medical Sciences, Tianjin Medical University, Qixiangtai Road, No.22, Heping District, Tianjin 300070, China
| | - Honglin Zhao
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital; Anshan Road No.154, Heping District, Tianjin 300052, China
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He L, Chen Z, Wang J, Feng H. Expression relationship and significance of NEAT1 and miR-27a-3p in serum and cerebrospinal fluid of patients with Alzheimer’s disease. BMC Neurol 2022; 22:203. [PMID: 35659599 PMCID: PMC9164380 DOI: 10.1186/s12883-022-02728-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 05/26/2022] [Indexed: 11/12/2022] Open
Abstract
Objective To explore the expression relationship and significance of long chain non-coding RNA nuclear-enriched abundant transcript 1 (LncRNA NEAT1) and miR-27a-3p in serum and cerebrospinal fluid of patients with Alzheimer’s disease (AD). Methods Sixty-six AD patients received by the Department of Neurology of our hospital from October 2019 to September 2021 were gathered, according to the Clinical Dementia Rating Scale (CDR) score, they were grouped into mild group (≤1 point, n = 41) and moderate-to-severe group (> 1 point, n = 25). Another 32 cases of serum and cerebrospinal fluid samples from outpatient physical examination personnel were regarded as the control group. The general materials on all subjects was recorded and cognition was assessed;real-time quantitative PCR was performed to measure the expression levels of miR-27a-3p and NEAT1 in serum and cerebrospinal fluid;enzyme-linked immunosorbent assay was performed to measure the protein levels of β-amyloid precursor protein cleaving enzyme 1 (BACE1), β-amyloid (Aβ) 40 and Aβ42 in cerebrospinal fluid;Spearman’s method was performed to analyze the correlation of serum miR-27a-3p and NEAT1 levels with MMSE and MoCA scores;Pearson method was performed to analyze the correlation between serum miR-27a-3p and NEAT1 levels and Aβ deposition standard uptake value ratio (SUVR) and cerebrospinal fluid miR-27a-3p, NEAT1, BACE1, Aβ42 and Aβ40 levels. Results The MMSE score, MoCA score, serum miR-27a-3p level, cerebrospinal fluid miR-27a-3p, Aβ42 levels and Aβ42/Aβ40 ratio of AD patients in mild group and moderate-to-severe group were all lower than those in the control group, and the moderate-to-severe group were lower than the mild group (all P < 0.05);the serum NEAT1 level, SUVR, and cerebrospinal fluid NEAT1 and BACE1 levels were higher than those in the control group, and the moderate-to-severe group were higher than the mild group (all P < 0.05). Serum NEAT1 level in AD patients was positively correlated with SUVR, cerebrospinal fluid NEAT1 and BACE1 (r = 0.350, 0.606, 0.341, all P < 0.05);serum miR-27a-3p level was positively correlated with cerebrospinal fluid miR-27a-3p level (r = 0.695, P < 0.05), and negatively correlated with SUVR and cerebrospinal fluid BACE1 level (r = − 0.521, − 0.447, both P < 0.05). Conclusions The expression trends of NEAT1 and miR-27a-3p in the serum and cerebrospinal fluid of AD patients are consistent, the level of NEAT1 is increased, and the level of miR-27a-3p is decreased. The levels of the two are negatively correlated, which is related to the degree of Aβ deposition in the brain of AD patients and is involved in the progression of AD.
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Dong LX, Zhang YY, Bao HL, Liu Y, Zhang GW, An FM. LncRNA NEAT1 promotes Alzheimer's disease by down regulating micro-27a-3p. Am J Transl Res 2021; 13:8885-8896. [PMID: 34540002 PMCID: PMC8430163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVE Alzheimer's disease (AD) is a common neurodegenerative disease. This study was designed to investigate the roles of lncRNA NEAT1/miR-27a-3p axis in AD. METHODS Amyloid protein was used to treat SH-SY5Y cells and rats to construct AD model. RT-qPCR was used to quantify lncRNA NEAT1 and micro-27a-3p in AD model cells. Western blot was used to determine the β-amyloid-precursor-protein-cleaver-enzyme 1 (BACE1), amyloid, Tau protein and its phosphorylation, Caspase 3 protein and its lytic cell protein and amyloid precursor protein (APP). Flow cytometry was used to detect apoptosis. The cell activity was detected by CCK-8. The lncRNA NEAT1 and miR-27a-3p inhibition or over-expression vectors were constructed. The dual luciferase reporter gene and RNA pull-down assay were used to detect the targeting relationship between lncRNA NEAT1 and micro-27a-3p. The cognitive function of rats was tested by water maze. RESULTS After being induced by amyloid protein, lncRNA NEAT1 was up-regulated while micro-27a-3p was down-regulated in SH-SY5Y cells. Apoptosis rate was increased and cell activity was decreased. Amyloid protein, BACE1 protein, APP protein, Tau protein and its phosphorylation, Caspase 3 protein and its lytic cell protein were up-regulated. Down-regulation of lncRNA NEAT1 or up-regulation of micro-27a-3p could reduce cell apoptosis, increase cell activity, down-regulate amyloid protein, BACE1 protein, APP protein, Tau protein and its phosphorylation, and up-regulate caspase 3 protein and its lysate protein. Dual luciferase reporter gene assay and RNA pull-down experiments revealed that micro-27a-3p was the target gene of lncRNA NEAT1. Down-regulation of micro-27a-3p could offset the changes caused by LncRNA NEAT1. AD caused cognitive dysfunction in rats, which was improved by down-regulation of lncRNA NEAT1. CONCLUSION lncRNA NEAT1 regulates the development of AD by down-regulating micro-27a-3p.
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Affiliation(s)
- Li-Xia Dong
- College of Nursing, Inner Mongolia University for NationalitiesTongliao 028000, Inner Mongolia Autonomous Region, P. R. China
- Institute of Dementia, Inner Mongolia University for NationalitiesTongliao, Inner Mongolia, P. R. China
| | - Yan-Yun Zhang
- College of Nursing, Inner Mongolia University for NationalitiesTongliao 028000, Inner Mongolia Autonomous Region, P. R. China
- Institute of Dementia, Inner Mongolia University for NationalitiesTongliao, Inner Mongolia, P. R. China
| | - Hai-Lan Bao
- College of Nursing, Inner Mongolia University for NationalitiesTongliao 028000, Inner Mongolia Autonomous Region, P. R. China
- Institute of Dementia, Inner Mongolia University for NationalitiesTongliao, Inner Mongolia, P. R. China
| | - Yu Liu
- College of Nursing, Inner Mongolia University for NationalitiesTongliao 028000, Inner Mongolia Autonomous Region, P. R. China
- Institute of Dementia, Inner Mongolia University for NationalitiesTongliao, Inner Mongolia, P. R. China
| | - Guo-Wei Zhang
- College of Nursing, Inner Mongolia University for NationalitiesTongliao 028000, Inner Mongolia Autonomous Region, P. R. China
- Institute of Dementia, Inner Mongolia University for NationalitiesTongliao, Inner Mongolia, P. R. China
| | - Feng-Mao An
- Institute of Dementia, Inner Mongolia University for NationalitiesTongliao, Inner Mongolia, P. R. China
- Inner Mongolia Key Laboratory of Mongolian Medicine Pharmacology for Cardio-Cerebral Vascular SystemTongliao, Inner Mongolia, P. R. China
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Dong M, Wang X, L T, Wang J, Yang Y, Liu Y, Jing Y, Zhao H, Chen J. Mir-27a-3p attenuates bronchiolitis obliterans in vivo via the regulation of dendritic cells' maturation and the suppression of myofibroblasts' differentiation. Clin Transl Med 2020; 10:e140. [PMID: 32898329 PMCID: PMC7423186 DOI: 10.1002/ctm2.140] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 07/16/2020] [Accepted: 07/17/2020] [Indexed: 01/02/2023] Open
Abstract
Bronchiolitis obliterans (BO), is a chronic rejection phenotype characterized by chronic small airway fibrous obliteration, hinders the patients who suffer from lung transplanting for surviving longer. Cell-based therapies using dendritic cells (DCs) and T regulatory cells (Tregs) have been developed to regulate allograft rejection, and to induce and maintain immune tolerance. In the present study, the effects of mir-27a-3p on regulating DCs as well as resulting effects on BO attenuation have been investigated. According to our reporter assays, the potential targets of mir-27a-3p were Smad2, sprouty2, and Smad4, respectively. Furthermore, sprouty2 inhibition by mir-27-3p indirectly activated extracellular regulated protein kinases (ERK) and increased IL-10 production in DCs. This led to a positive feedback loop that maintained the immature state of DCs via IL-10/JAK/STAT3 pathway, and caused an increase in Foxp3+ CD4+ T cells amount as well as TGF-β level. Furthermore, mir-27a-3p regulated TGF-β function, inhibited TGF-β/Smad pathway, and suppressed myofibroblast differentiation through influencing the function of Smad2 and Smad4. In short, the study indicated the effect of mir-27a-3p on suppressing DC maturation, which implicated the potential clinical application in treating postlung transplant BO.
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Affiliation(s)
- Ming Dong
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Xin Wang
- Department of Pediatric Surgery, Tianjin Children's Hospital, Tianjin, P. R. China
| | - Tong L
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Jing Wang
- Tianjin Key Laboratory of Lung Cancer Metastasis and Tumor Microenvironment, Tianjin Lung Cancer Institute, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Yunwei Yang
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P. R. China
| | - Yi Liu
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P. R. China
| | - Yaqing Jing
- School of Basic Medical Sciences, Tianjin Medical University, Tianjin, P. R. China
| | - Honglin Zhao
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, P. R. China
| | - Jun Chen
- Department of Lung Cancer Surgery, Tianjin Medical University General Hospital, Tianjin, P. R. China
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