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Wang HQ, Ma YR, Zhang YX, Wei FH, Zheng Y, Ji ZH, Guo HX, Wang T, Zhang JB, Yuan B. GnRH-driven FTO-mediated RNA m 6A modification promotes gonadotropin synthesis and secretion. BMC Biol 2024; 22:104. [PMID: 38702712 PMCID: PMC11069278 DOI: 10.1186/s12915-024-01905-1] [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: 12/21/2023] [Accepted: 04/26/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Gonadotropin precisely controls mammalian reproductive activities. Systematic analysis of the mechanisms by which epigenetic modifications regulate the synthesis and secretion of gonadotropin can be useful for more precise regulation of the animal reproductive process. Previous studies have identified many differential m6A modifications in the GnRH-treated adenohypophysis. However, the molecular mechanism by which m6A modification regulates gonadotropin synthesis and secretion remains unclear. RESULTS Herein, it was found that GnRH can promote gonadotropin synthesis and secretion by promoting the expression of FTO. Highly expressed FTO binds to Foxp2 mRNA in the nucleus, exerting a demethylation function and reducing m6A modification. After Foxp2 mRNA exits the nucleus, the lack of m6A modification prevents YTHDF3 from binding to it, resulting in increased stability and upregulation of Foxp2 mRNA expression, which activates the cAMP/PKA signaling pathway to promote gonadotropin synthesis and secretion. CONCLUSIONS Overall, the study reveals the molecular mechanism of GnRH regulating the gonadotropin synthesis and secretion through FTO-mediated m6A modification. The results of this study allow systematic interpretation of the regulatory mechanism of gonadotropin synthesis and secretion in the pituitary at the epigenetic level and provide a theoretical basis for the application of reproductive hormones in the regulation of animal artificial reproduction.
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Affiliation(s)
- Hao-Qi Wang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Yi-Ran Ma
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Yu-Xin Zhang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Fan-Hao Wei
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Yi Zheng
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Zhong-Hao Ji
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Hai-Xiang Guo
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Tian Wang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China
| | - Jia-Bao Zhang
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China.
| | - Bao Yuan
- Department of Laboratory Animals, College of Animal Sciences, Jilin University, Changchun, Jilin, 130062, P.R. China.
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Su W, Hu S, Zhou L, Bi H, Li Z. FOXP2 inhibits the aggressiveness of lung cancer cells by blocking TGFβ signaling. Oncol Lett 2024; 27:227. [PMID: 38586208 PMCID: PMC10996029 DOI: 10.3892/ol.2024.14361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 03/01/2024] [Indexed: 04/09/2024] Open
Abstract
Lung cancer is associated with high morbidity and mortality rates. Forkhead box P2 (FOXP2) functions as an antitumor gene in various cancers. However, its role in lung cancer remains to be elucidated. The present study explored the potential role of FOXP2 in lung cancer. mRNA levels and protein expression were determined using RT-qPCR and western blotting, respectively. Functional analysis was performed using the CCK-8, Transwell and TUNEL assays. FOXP2 expression was downregulated in lung cancer. Notably, FOXP2 suppressed the proliferative, migratory and invasive abilities of lung cancer cells and promoted tumor cell apoptosis. In addition, FOXP2 blocked TGFβ signaling. However, SRI-011381-stimulated activation of TGFβ signaling reversed the effects of overexpressed FOXP2 and promoted the aggressiveness of lung cancer cells. FOXP2 functions as an antitumor gene in lung cancer cells. FOXP2 suppressed the malignant behavior of lung cancer by inactivating TGFβ signaling.
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Affiliation(s)
- Wenya Su
- Department of Respiratory and Critical Care Medicine, Changzhou First People's Hospital, Changzhou, Jiangsu 213000, P.R. China
| | - Song Hu
- Department of Respiratory and Critical Care Medicine, Changzhou First People's Hospital, Changzhou, Jiangsu 213000, P.R. China
| | - Lin Zhou
- Department of Respiratory and Critical Care Medicine, Changzhou First People's Hospital, Changzhou, Jiangsu 213000, P.R. China
| | - Hui Bi
- Department of Respiratory and Critical Care Medicine, Changzhou First People's Hospital, Changzhou, Jiangsu 213000, P.R. China
| | - Zhiying Li
- Department of Respiratory and Critical Care Medicine, Changzhou First People's Hospital, Changzhou, Jiangsu 213000, P.R. China
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Tao Z, Li X, Yu H, Wu J, Wen Y, Liu T. Photodynamic Therapy of LD4-Photosensitizer Attenuates the Acute Pneumonia Induced by Klebsiella pneumoniae. ACS Pharmacol Transl Sci 2024; 7:1101-1113. [PMID: 38633581 PMCID: PMC11020065 DOI: 10.1021/acsptsci.3c00392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 04/19/2024]
Abstract
Klebsiella pneumoniae is a Gram-negative bacterium that induces acute lung injury (ALI) and inflammation in humans, necessitating immediate hospitalization and treatment. At present, the clinical treatment is largely dependent on hormones or antibiotics but is associated with drawbacks posed by the lack of eradication of the bacterium upon treatment and drug resistance. Therefore, there is an urgent need for novel and effective treatments. The current study investigated the treatment of K. pneumonia-induced ALI using a photosensitizer LD4 in conjunction with photodynamic therapy (PDT). The water content in the lungs (corresponding to edema) of a rat model of pneumonia induced by K. pneumoniae was reduced upon treatment with LD4-PDT. The counts of leukocyte, lymphocyte, and polymorphonuclear leukocyte in the blood were determined in the rat model of pneumonia, as were the concentrations of inflammatory cytokines (estimated using an enzyme-linked immunosorbent assay). The LD4-PDT treatment prominently reduced the levels of interleukin (IL)-6, IL-10, tumor necrosis factor-α, superoxide dismutase, and immune cells. Results suggest that LD4-PDT considerably alleviates the inflammation and oxidative stress caused by K. pneumoniae in the rat model of pneumonia. Furthermore, it could effectively improve the survival rate in the rat model of K. pneumonia-induced pneumonia and ameliorate histological changes while protecting the integrity of the pulmonary epithelial cells. These results highlight the potential application of LD4 as a photosensitizer for treating acute pneumonia induced by K. pneumoniae.
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Affiliation(s)
- Zhuo Tao
- Tianjin
Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Science
and Peking Union Medical College, Tianjin 300192, China
| | - Xin Li
- Department
of Pathology, Tianjin Key Laboratory of Lung Regenerative Medicine, Haihe Hospital, Tianjin 300350, China
| | - Hongzhi Yu
- Department
of Respiratory Medicine, Haihe Hospital, Tianjin 300350, China
| | - Junping Wu
- Department
of Infection, Haihe Hospital, Tianjin 300350, China
| | - Ying Wen
- Tianjin
Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Science
and Peking Union Medical College, Tianjin 300192, China
| | - Tianjun Liu
- Tianjin
Key Laboratory of Biomedical Materials, Institute of Biomedical Engineering, Chinese Academy of Medical Science
and Peking Union Medical College, Tianjin 300192, China
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4
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Tang W, Wu S, Tang Y, Ma J, Ao Y, Liu L, Wei K. Microarray analysis identifies lncFirre as a potential regulator of obesity-related acute lung injury. Life Sci 2024; 340:122459. [PMID: 38307237 DOI: 10.1016/j.lfs.2024.122459] [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: 11/08/2023] [Revised: 01/21/2024] [Accepted: 01/22/2024] [Indexed: 02/04/2024]
Abstract
AIMS The inflammatory response in acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is heightened in obesity. The aim of this study was to investigate whether lncRNAs are involved in the effects of obesity on acute lung injury and to find possible effector lncRNAs. MAIN METHODS Microarray analysis was used to assess the transcriptional profiles of lncRNAs and mRNAs in lung tissues from normal (CON), high-fat diet induced obese (DIO), and obese ALI mice (DIO-ALI). GO and KEGG analyses were employed to explore the biological functions of differentially expressed genes. A lncRNA-mRNA co-expression network was constructed to identify specific lncRNA. Lung tissues and peripheral blood samples from patients with obesity and healthy lean donors were utilized to confirm the expression characteristics of lncFirre through qRT-PCR. lncFirre was knocked down in MH-S macrophages to explore its function. ELISA and Griess reagent kit were used to detect PGE2 and NO. Flow cytometry was used to detect macrophages polarization. KEY FINDINGS There were 475 lncRNAs and 404 mRNAs differentially expressed between DIO and CON, while 1348 lncRNAs and 1349 mRNAs between DIO-ALI and DIO. Obesity increased lncFirre expression in both mice and patients, and PA elevated lncFirre in MH-S. PA exacerbated the inflammation and proinflammatory polarization of MH-S induced by LPS. LncFirre knockdown inhibited the secretion of PGE2 and NO, M1 differentiation while promoted the M2 differentiation in PA and LPS co-challenged MH-S. SIGNIFICANCE Interfering with lncFirre effectively inhibit inflammation in MH-S, lncFirre can serve as a promising target for treating obesity-related ALI.
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Affiliation(s)
- Wenjing Tang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Siqi Wu
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yin Tang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jingyue Ma
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yichan Ao
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ling Liu
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
| | - Ke Wei
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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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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Hu J, Huang K, Bao F, Zhong S, Fan Q, Li W. Low-dose lipopolysaccharide inhibits spinal cord injury-induced neuronal apoptosis by regulating autophagy through the lncRNA MALAT1/Nrf2 axis. PeerJ 2023; 11:e15919. [PMID: 37663283 PMCID: PMC10470450 DOI: 10.7717/peerj.15919] [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: 05/05/2023] [Accepted: 07/27/2023] [Indexed: 09/05/2023] Open
Abstract
Background Spinal cord injury (SCI) is a neurological disease associated with a high disability rate. Low-dose lipopolysaccharide (LPS) has been reported to activate cross-immune tolerance and alleviate the effects of various traumatic stimuli. The present study aimed to explore the effect of LPS on SCI and the potential molecular mechanism. Methods Male Sprague-Dawley (SD) rats were used to established an in vivo SCI model and were intraperitoneally injected with lentivirus particles encoding a MALAT1 small interfering RNA (siRNA) on day 10 prior to SCI and with 0.2 mg/kg LPS 72 h prior to SCI. Basso, Beattie, and Bresnahan (BBB) scoring; HE staining; and TUNEL assay were used to assess neurological function and pathophysiological changes. Western blot and immunohistochemistry (IHC) were used to detect cell autophagy and Nrf2 nuclear translocation. PC12 cells were exposed to oxygen-glucose deprivation/reoxygenation (OGD/R) to establish an in vitro SCI model. In vitro SCI model cells were pretreated with LPS and transfected with siMALAT1 or MALAT1 overexpression plasmid aimed at knocking down MALAT1 or overexpressing MALAT1. The cell counting kit-8 (CCK-8) assay was used to measure the toxicity of LPS towards PC12 cells. Flow cytometry and immunofluorescence analysis were performed to investigate cell apoptosis and Nrf2 nuclear translocation. Results SCI rats preconditioned with low-dose LPS had higher BBB scores, reduced SCI injury, increased MALAT1 expression and activated autophagy and Nrf2 nuclear translocation in the in vivo SCI model. In the in vitro SCI model, low-dose LPS treatment suppressed the apoptotic ratio of PC12 cells, increased MALAT1 expression, activated autophagy, and promoted Nrf2 nuclear translocation. Silencing MALAT1 exacerbated OGD/R injury in vitro and weakened the protective effect of low-dose LPS. Overexpression of MALAT1 inhibits OGD/R-induced apoptosis by inducing autophagy and promoting Nrf2 nuclear translocation. This was also been confirmed in animal experiments, silencing MALAT1 blocked the promotion of Nrf2 by low-dose LPS and the alleviated of SCI apoptosis. Conclusions Low-dose LPS exhibited a protective role on SCI by activating autophagy and suppressing nerve cell apoptosis via the lncRNA MALAT1/Nrf2 axis.
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Affiliation(s)
- Jianhua Hu
- Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
- Faculty of Medical Science, Kunming University of Science and Technology, Kunming, China
| | - Kun Huang
- Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Feilong Bao
- Faculty of Medical Science, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Digital Orthopaedics, Kunming, China
| | - Shixiao Zhong
- Faculty of Medical Science, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Digital Orthopaedics, Kunming, China
| | - Qianbo Fan
- Faculty of Medical Science, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Digital Orthopaedics, Kunming, China
| | - Weichao Li
- Orthopedic Surgery, The First People’s Hospital of Yunnan Province, Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
- Faculty of Medical Science, Kunming University of Science and Technology, Kunming, China
- Yunnan Key Laboratory of Digital Orthopaedics, Kunming, China
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7
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Li Z, Jin T, Yang R, Guo J, Niu Z, Gao H, Song X, Zhang Q, Ning Z, Ren L, Wang Y, Fan X, Liang H, Li T, He W. Long non-coding RNA PFI inhibits apoptosis of alveolar epithelial cells to alleviate lung injury via miR-328-3p/Creb1 axis. Exp Cell Res 2023:113685. [PMID: 37330182 DOI: 10.1016/j.yexcr.2023.113685] [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: 03/25/2023] [Revised: 06/05/2023] [Accepted: 06/06/2023] [Indexed: 06/19/2023]
Abstract
Acute lung injury (ALI), a common clinical type of critical illness, is an acute hypoxic respiratory insufficiency caused by the damage of alveolar epithelial cells and capillary endothelial cells. In a previous study, we reported a novel lncRNA, lncRNA PFI, which could protect against pulmonary fibrosis in pulmonary fibroblasts. The present study demonstrated that lncRNA PFI was downregulated in alveolar epithelial cell of mice injury lung tissues, and further investigated the role of lncRNA PFI in regulating inflammation-induced alveolar epithelial cell apoptosis. Overexpression of lncRNA PFI could partially abrogated bleomycin induced type II AECs injured. Subsequently, bioinformatic prediction revealed that lncRNA PFI might directly bind to miR-328-3p, and further AGO-2 RNA binding protein immunoprecipitation (RIP) assay confirmed their binding relationship. Furthermore, miR-328-3p promoted apoptosis in MLE-12 cells by limiting the activation of the Creb1, a protein correlated with cell apoptosis, whereas AMO-328-3p ablated the pro-apoptosis effect of silencing lncRNA PFI in MLE-12 cells. While miR-328-3p could also ablate the function of lncRNA PFI in bleomycin treated human lung epithelial cells. Enhanced expression of lncRNA PFI reversed the LPS-induced lung injury in mice. Overall, these data reveal that lncRNA PFI mitigated acute lung injury through miR-328-3p/Creb1 pathway in alveolar epithelial cells.
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Affiliation(s)
- Zhixin Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University, Shanghai, 200433, China
| | - Tongzhu Jin
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Ruoxuan Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Jiayu Guo
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Zhihui Niu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Huiying Gao
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Xiaoying Song
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Qing Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Zhiwei Ning
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Lingxue Ren
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Yan Wang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China
| | - Xingxing Fan
- State Key Laboratory of Quality Research in Chinese Medicine/Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau (SAR), China
| | - Haihai Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Research Unit of Noninfectious Chronic Diseases in Frigid Zone (2019RU070), Chinese Academy of Medical Sciences, Harbin, Heilongjiang, 150081, PR China
| | - Tianyu Li
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China; Northern Translational Medicine Research and Cooperation Center, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang, 150081, PR China.
| | - Wenxin He
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University, Shanghai, 200433, China.
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Li Y, Zhang C, Zhao Z. CircSLCO3A1 depletion ameliorates lipopolysaccharide-induced inflammation and apoptosis of human pulmonary alveolar epithelial cells through the miR-424-5p/HMGB3 pathway. Mol Cell Toxicol 2023:1-12. [PMID: 37359246 PMCID: PMC10211294 DOI: 10.1007/s13273-023-00341-6] [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] [Accepted: 02/16/2023] [Indexed: 06/28/2023]
Abstract
Background Recent studies have shown the pathogenesis of acute lung injury (ALI) involves circular RNA (circRNA). However, there are no data on the role of circSLCO3A1 in ALI and the underlying mechanism. Objective ALI-like cell injury was induced by stimulating human pulmonary alveolar epithelial cells (HPAEpiCs) using lipopolysaccharide (LPS). The expression of circSLCO3A1, miR-424-5p and high mobility group box 3 (HMGB3) was detected by quantitative real-time polymerase chain reaction. Cell viability and cell apoptosis were assessed by cell counting kit-8 (CCK-8) assay and flow cytometry analysis, respectively. Enzyme-linked immunosorbent assay was performed to determine the production of interleukin-1β (IL-1β), IL-6, tumor necrosis factor-α (TNF-α) and monocyte chemotactic protein 1 (MCP-1). Caspase-3 activity was detected by caspase-3 activity assay. Protein expression of inducible NOS (iNOS), cyclooxygenase-2 (COX2), p-p65 and p65 was analyzed by Western blot. The interactions among circSLCO3A1, miR-424-5p and HMGB3 were identified by dual-luciferase reporter assay, RNA immunoprecipitation assay and RNA pull-down assay. Results CircSLCO3A1 and HMGB3 expression were significantly increased, while miR-424-5p was decreased in LPS-treated HPAEpiCs and the serum of septic ALI patients in comparison with controls. CircSLCO3A1 knockdown assuaged LPS-induced HPAEpiC inflammation and apoptosis. Besides, circSLCO3A1 targeted miR-424-5p and regulated LPS-triggered HPAEpiC inflammation and apoptosis by binding to miR-424-5p. Under the treatment of LPS, miR-424-5p mediated HPAEpiC disorders by targeting HMGB3. Importantly, circSLCO3A1 modulated HMGB3 production by interacting with miR-424-5p. Conclusion CircSLCO3A1 absence assuaged LPS-induced HPAEpiC inflammation and apoptosis through the miR-424-5p/HMGB3 axis. Highlights CircSLCO3A1 expression was upregulated in LPS-induced HPAEpiCs and sepsis-induced ALI patients.CircSLCO3A1 depletion protected against LPS-induced HPAEpiC disorders.CircSLCO3A1 bound to miR-424-5p in HPAEpiCs.MiR-424-5p targeted HMGB3 in HPAEpiCs.CircSLCO3A1 regulated HMGB3 expression through miR-424-5p. Supplementary Information The online version contains supplementary material available at 10.1007/s13273-023-00341-6.
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Affiliation(s)
- Yan Li
- Department of Emergency Medicine, China-Japan Union Hospital of Jilin University, Changchun, Jilin China
| | - Chunmei Zhang
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033 Jilin China
| | - Zhongyan Zhao
- Department of Critical Medicine, China-Japan Union Hospital of Jilin University, No. 126, Xiantai Street, Changchun, 130033 Jilin China
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Zhou S, Zhou X, Jiang Z, Ma J, Li Y, Qian Z, Li H. The Mechanism of SNHG8/Microrna-421-3p/Sorting Nexin 8 Axis on Dopaminergic Neurons in Substantia Nigra in a Mouse Model of Parkinson's Disease. Neurochem Res 2023; 48:942-955. [PMID: 36401052 DOI: 10.1007/s11064-022-03795-7] [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: 05/09/2022] [Revised: 10/09/2022] [Accepted: 10/14/2022] [Indexed: 11/19/2022]
Abstract
Parkinson's disease (PD) is a progressive neurodegenerative disease affecting the aging population. Particularly, long non-coding RNAs (lncRNAs) have been demonstrated to play vital roles in PD, while the role of lncRNA SNHG8 in PD remains to be further explored. C57BL/6 mice were induced by rotenone to establish a PD model in vivo, and then the dopaminergic (DA) neuronal damage and locomotor dysfunction in rotenone-treated mice were evaluated. Murine DA cell line MN9D was treated with rotenone to establish a cellular PD model in vitro. Then, the viability, apoptosis, mitochondrial dysfunction, endoplasmic reticulum stress, and autophagy in rotenone-treated MN9D cells were assessed. Expression levels of SNHG8, microRNA-421-3p (miR-421-3p), and sorting nexin 8 (SNX8) in the substantia nigra (SN) of PD mice and rotenone-treated MN9D cells were detected. The interaction between SNHG8 and miR-421-3p, and the targeting relationship between SNX8 and miR-421-3p were confirmed. SNHG8 and SNX8 expression levels were decreased while miR-421-3p expression level was increased in the SN of PD mice and rotenone-treated MN9D cells. Upregulated SNHG8 ameliorated dopaminergic neuron damage and locomotor dysfunction in PD mice. Meanwhile, upregulated SNHG8 enhanced viability, diminished apoptosis, and alleviated mitochondrial dysfunction, endoplasmic reticulum stress, and autophagy in rotenone-treated MN9D cells. Mechanistically, SNHG8 bound to miR-421-3p, and miR-421-3p targeted SNX8. Overexpressed SNHG8 downregulates miR-421-3p to alleviate rotenone-induced dopaminergic neuron injury in PD via upregulating SNX8.
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Affiliation(s)
- Siwei Zhou
- Geriatric Rehabilitation Center, Zhejiang Rehabilitation Medical Center, No.2828 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Xiaofang Zhou
- Geriatric Rehabilitation Center, Zhejiang Rehabilitation Medical Center, No.2828 Binsheng Road, Hangzhou, 310051, Zhejiang, China.
| | - Zewen Jiang
- Outpatient Department, Zhejiang Armed Police Corps Hospital, No.86 Jiangnan Road, Hangzhou, Zhejiang, China
| | - Jinrong Ma
- Geriatric Rehabilitation Center, Zhejiang Rehabilitation Medical Center, No.2828 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Yuanmei Li
- Geriatric Rehabilitation Center, Zhejiang Rehabilitation Medical Center, No.2828 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Zhiyong Qian
- Geriatric Rehabilitation Center, Zhejiang Rehabilitation Medical Center, No.2828 Binsheng Road, Hangzhou, 310051, Zhejiang, China
| | - Hua Li
- Geriatric Rehabilitation Center, Zhejiang Rehabilitation Medical Center, No.2828 Binsheng Road, Hangzhou, 310051, Zhejiang, China
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10
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Li Y, Xiao W, Lin X. Long noncoding RNA MALAT1 inhibition attenuates sepsis-induced acute lung injury through modulating the miR-129-5p/PAX6/ZEB2 axis. Microbiol Immunol 2023; 67:142-153. [PMID: 36537561 DOI: 10.1111/1348-0421.13045] [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: 09/29/2022] [Revised: 12/05/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
This research aimed to investigate the role of the long noncoding RNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1)/microRNA-129-5p (miR-129-5p)/paired box gene 6 (PAX6) axis in sepsis-induced acute lung injury (ALI). MLE-12 cells and C57BL/6 mice were induced by LPS to establish lung injury in in vitro and in vivo models. Cell viability and apoptosis were measured by cell counting kit-8 assay and TUNEL (terminal deoxynucleotidyl transferase dUTP nick end labeling) staining, respectively. Levels of inflammatory cytokines in cell supernatants and bronchoalveolar lavage fluid (BALF) were detected by ELISA. Lung injury was evaluated by lung wet weight-to-dry weight ratio and hematoxylin-eosin staining. MALAT1, PAX6, and zinc finger E-box-binding homeobox 2 (ZEB2) expression was elevated and miR-129-5p expression was reduced in the serum of patients with sepsis-induced ALI, LPS-induced MLE-12 cells, and lung tissues of ALI mice. MALAT1 interference delayed the LPS-induced cell proliferation decrease, apoptosis increase, and inflammatory factor increase. miR-129-5p inhibition could reverse the delaying effect of MALAT1 interference on LPS-induced lung cell injury. PAX6 overexpression (oe) reversed the inhibitory effect of miR-129-5p oe on LPS-induced lung cell injury. Downregulating MALAT1 reduced pulmonary edema, inflammatory cytokine levels, lung injury, and apoptosis in ALI mice. Moreover, miR-129-5p suppression or PAX6 oe reversed the delaying effect of MALAT1 interference on sepsis-induced ALI. MALAT1 aggravates sepsis-induced ALI via the miR-129-5p/PAX6/ZEB2 axis.
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Affiliation(s)
- Ying Li
- Department of Critical Care Medicine, The First Affiliated Hospital, Fujian Medical University, Fujian, Fuzhou, China
| | - Wenbiao Xiao
- Department of Critical Care Medicine, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fujian, Fuzhou, China
| | - Xiao Lin
- Department of Critical Care Medicine, The First Affiliated Hospital, Fujian Medical University, Fujian, Fuzhou, China
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11
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Chen L, Kang X, Meng X, Huang L, Du Y, Zeng Y, Liao C. MALAT1-mediated EZH2 Recruitment to the GFER Promoter Region Curbs Normal Hepatocyte Proliferation in Acute Liver Injury. J Clin Transl Hepatol 2023; 11:97-109. [PMID: 36406327 PMCID: PMC9647095 DOI: 10.14218/jcth.2021.00391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 11/12/2021] [Accepted: 03/04/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND AND AIMS The goal of this study was to investigate the mechanism by which the long noncoding RNA MALAT1 inhibited hepatocyte proliferation in acute liver injury (ALI). METHODS Lipopolysaccharide (LPS) was used to induce an ALI cellular model in HL7702 cells, in which lentivirus vectors containing MALAT1/EZH2/GFER overexpression or knockdown were introduced. A series of experiments were performed to determine their roles in liver injury, oxidative stress injury, and cell biological processes. The interaction of MALAT1 with EZH2 and enrichment of EZH2 and H3K27me3 in the GFER promoter region were identified. Rats were treated with MALAT1 knockdown or GFER overexpression before LPS induction to verify the results derived from the in vitro assay. RESULTS MALAT1 levels were elevated and GFER levels were reduced in ALI patients and the LPS-induced cell model. MALAT1 knockdown or GFER overexpression suppressed cell apoptosis and oxidative stress injury induced cell proliferation, and reduced ALI. Functionally, MALAT1 interacted directly with EZH2 and increased the enrichment of EZH2 and H3K27me3 in the GFER promoter region to reduce GFER expression. Moreover, MALAT1/EZH2/GFER was activated the AMPK/mTOR signaling pathway. CONCLUSION Our study highlighted the inhibitory role of reduced MALAT1 in ALI through the modulation of EZH2-mediated GFER.
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Affiliation(s)
- Li Chen
- Department of Infectious Diseases, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
- Correspondence to: Li Chen, Department of Infectious Diseases, The Third Xiangya Hospital of Central South University, No.138, Tongzipo Road, Yuelu District, Changsha, Hunan 410013, China. ORCID: https://orcid.org/0000-0003-2385-2858. Tel: +86-13755192409, E-mail:
| | - Xintong Kang
- Department of Hepatology, Public Health Clinical Center of Chengdu, Chengdu, Sichuan, China
| | - Xiujuan Meng
- Hospital-Acquired Infection Control Center, Xiangya Hospital Central South University, Changsha, Hunan, China
| | - Liang Huang
- Department of Hepatology, Public Health Clinical Center of Chengdu, Chengdu, Sichuan, China
| | - Yiting Du
- Department of Emergency, Chengdu Women’s and Children’s Central Hospital, Chengdu, Sichuan, China
| | - Yilan Zeng
- Department of Hepatology, Public Health Clinical Center of Chengdu, Chengdu, Sichuan, China
| | - Chunfeng Liao
- Department of Cardiovascular Medicine, The First Hospital of Changsha, Changsha, Hunan, China
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12
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Long Noncoding RNA: A Novel Insight into the Pathogenesis of Acute Lung Injury. J Clin Med 2023; 12:jcm12020604. [PMID: 36675533 PMCID: PMC9861694 DOI: 10.3390/jcm12020604] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/03/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
Acute lung injury (ALI) and its severe form, acute respiratory distress syndrome (ARDS), represent an acute stage of lung inflammation where the alveolar epithelium loses its functionality. ALI has a devastating impact on the population as it not only has a high rate of incidence, but also has high rates of morbidity and mortality. Due to the involvement of multiple factors, the pathogenesis of ALI is complex and is not fully understood yet. Long noncoding RNAs (lncRNAs) are a group of non-protein-coding transcripts longer than 200 nucleotides. Growing evidence has shown that lncRNAs have a decisive role in the pathogenesis of ALI. LncRNAs can either promote or hinder the development of ALI in various cell types in the lungs. Mechanistically, current studies have found that lncRNAs play crucial roles in the pathogenesis of ALI via the regulation of small RNAs (e.g., microRNAs) or downstream proteins. Undoubtedly, lncRNAs not only have the potential to reveal the underlying mechanisms of ALI pathogenesis but also serve as diagnostic and therapeutic targets for the therapy of ALI.
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13
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Liu L, Yuan Y, Zhou Y, Yao L, Li J, Chen F. The transcription factor KLF14 attenuates LPS-induced acute lung injury by ameliorating apoptosis of alveolar epithelial cells in mice. Mol Immunol 2022; 152:67-77. [DOI: 10.1016/j.molimm.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 09/25/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
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14
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Feng F, Jiao P, Wang J, Li Y, Bao B, Luoreng Z, Wang X. Role of Long Noncoding RNAs in the Regulation of Cellular Immune Response and Inflammatory Diseases. Cells 2022; 11:cells11223642. [PMID: 36429069 PMCID: PMC9688074 DOI: 10.3390/cells11223642] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/12/2022] [Accepted: 11/14/2022] [Indexed: 11/18/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are recently discovered genetic regulatory molecules that regulate immune responses and are closely associated with the occurrence and development of various diseases, including inflammation, in humans and animals. Under specific physiological conditions, lncRNA expression varies at the cell or tissue level, and lncRNAs can bind to specific miRNAs, target mRNAs, and target proteins to participate in certain processes, such as cell differentiation and inflammatory responses, via the corresponding signaling pathways. This review article summarizes the regulatory role of lncRNAs in macrophage polarization, dendritic cell differentiation, T cell differentiation, and endothelial and epithelial inflammation. In addition, it describes the molecular mechanism of lncRNAs in acute kidney injury, hepatitis, inflammatory injury of the lung, osteoarthritis, mastitis, and neuroinflammation to provide a reference for the molecular regulatory network as well as the genetic diagnosis and treatment of inflammatory diseases in humans and animals.
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Affiliation(s)
- Fen Feng
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Peng Jiao
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Jinpeng Wang
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Yanxia Li
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Binwu Bao
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
| | - Zhuoma Luoreng
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
- Correspondence: (Z.L.); (X.W.)
| | - Xingping Wang
- School of Agriculture, Ningxia University, Yinchuan 750021, China
- Key Laboratory of Ruminant Molecular Cell Breeding, Ningxia Hui Autonomous Region, Yinchuan 750021, China
- Correspondence: (Z.L.); (X.W.)
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15
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Yang Y, Zhang Y, Li S, Zheng X, Wong MH, Leung KS, Cheng L. A Robust and Generalizable Immune-Related Signature for Sepsis Diagnostics. IEEE/ACM TRANSACTIONS ON COMPUTATIONAL BIOLOGY AND BIOINFORMATICS 2022; 19:3246-3254. [PMID: 34437068 DOI: 10.1109/tcbb.2021.3107874] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
High-throughput sequencing can detect tens of thousands of genes in parallel, providing opportunities for improving the diagnostic accuracy of multiple diseases including sepsis, which is an aggressive inflammatory response to infection that can cause organ failure and death. Early screening of sepsis is essential in clinic, but no effective diagnostic biomarkers are available yet. Here, we present a novel method, Recurrent Logistic Regression, to identify diagnostic biomarkers for sepsis from the blood transcriptome data. A panel including five immune-related genes, LRRN3, IL2RB, FCER1A, TLR5, and S100A12, are determined as diagnostic biomarkers (LIFTS) for sepsis. LIFTS discriminates patients with sepsis from normal controls in high accuracy (AUROC = 0.9959 on average; IC = [0.9722-1.0]) on nine validation cohorts across three independent platforms, which outperforms existing markers. Our analysis determined an accurate prediction model and reproducible transcriptome biomarkers that can lay a foundation for clinical diagnostic tests and biological mechanistic studies.
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16
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Hao X, Wei H. LncRNA H19 alleviates sepsis-induced acute lung injury by regulating the miR-107/TGFBR3 axis. BMC Pulm Med 2022; 22:371. [PMID: 36180862 PMCID: PMC9524034 DOI: 10.1186/s12890-022-02091-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 07/27/2022] [Indexed: 11/12/2022] Open
Abstract
Objective Acute lung injury (ALI) increases sepsis morbidity and mortality. LncRNA H19 plays a critical role in sepsis. miR-107 is highly-expressed and TGFβ type III receptor (TGFBR3) is poorly-expressed in sepsis, yet their roles in sepsis development require further investigation. This study aimed to investigate the mechanism of H19 in alleviating sepsis-induced ALI through the miR-107/TGFBR3 axis.
Methods Mice were intravenously injected with Ad-H19 adenovirus vector or control vector one week before establishing the mouse model of cecal ligation and puncture (CLP). Pulmonary microvascular endothelial cells (PMVECs) were transfected with oe-H19 or oe-NC plasmids and then stimulated by lipopolysaccharide (LPS). Lung injury was assessed via hematoxylin–eosin staining, measurement of wet-to-dry (W/D) ratio, and TUNEL staining. Levels of H19, miR-107, and TGFBR3 were determined by RT-qPCR. Apoptosis of PMVECs was evaluated by flow cytometry. Levels of Bax and Bcl-2 in lung tissues and PMVECs were measured using Western blot. Total protein concentration and the number of total cells, neutrophils, and macrophages in bronchoalveolar lavage fluid (BALF) were quantified. Levels of TNF-α, IL-1β, IL-6, and IL-10 in BALF, lung tissues, and PMVECs were measured by ELISA. Cross-linking relationships among H19, miR-107 and TGFBR3 were verified by dual-luciferase and RIP assays. Results H19 was poorly-expressed in CLP-operated mice. H19 overexpression attenuated sepsis-induced ALI, which was manifested with complete alveolar structure, decreased lung injury score and lung W/D ratio, and inhibited apoptosis in CLP-operated mice, which was manifested with decreased number of TUNEL-positive cells and Bax level and increased Bcl-2 level. CLP-operated mice had increased concentration of total protein and number of total cells, neutrophils, and macrophages in BALF, which was nullified by H19 overexpression. H19 overexpression declined levels of TNF-α, IL-1β, and IL-6 and elevated IL-10 levels. H19 inhibited LPS-induced PMVEC apoptosis and pro-inflammatory cytokine production. H19 targeted TGFBR3 as the ceRNA of miR-107. miR-107 overexpression or silencing TGFBR3 partially averted the inhibition of H19 overexpression on LPS-induced PMVEC apoptosis and pro-inflammatory cytokine production. Conclusion LncRNA H19 inhibited LPS-induced PMVEC apoptosis and pro-inflammatory cytokine production and attenuated sepsis-induced ALI by targeting TGFBR3 as the ceRNA of miR-107. Supplementary Information The online version contains supplementary material available at 10.1186/s12890-022-02091-y.
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Affiliation(s)
- Xiuling Hao
- Department of Respiratory Medicine, East Hospital, The Second Hospital of Hebei Medical University, No. 80, Huanghe Avenue, East Development Zone, Shijiazhuang City, 050000, Hebei Province, People's Republic of China
| | - Huiqiang Wei
- Department of Respiratory Medicine, East Hospital, The Second Hospital of Hebei Medical University, No. 80, Huanghe Avenue, East Development Zone, Shijiazhuang City, 050000, Hebei Province, People's Republic of China.
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17
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Lai X, Zhong J, Zhang A, Zhang B, Zhu T, Liao R. Focus on long non-coding RNA MALAT1: Insights into acute and chronic lung diseases. Front Genet 2022; 13:1003964. [PMID: 36186445 PMCID: PMC9523402 DOI: 10.3389/fgene.2022.1003964] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 09/06/2022] [Indexed: 12/12/2022] Open
Abstract
Acute lung injury (ALI) is a pulmonary illness with a high burden of morbidity and mortality around the world. Chronic lung diseases also represent life-threatening situations. Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is a type of long non-coding RNA (lncRNA) and is highly abundant in lung tissues. MALAT1 can function as a competitive endogenous RNA (ceRNA) to impair the microRNA (miRNA) inhibition on targeted messenger RNAs (mRNAs). In this review, we summarized that MALAT1 mainly participates in pulmonary cell biology and lung inflammation. Therefore, MALAT1 can positively or negatively regulate ALI and chronic lung diseases (e.g., chronic obstructive pulmonary disease (COPD), bronchopulmonary dysplasia (BPD), pulmonary fibrosis, asthma, and pulmonary hypertension (PH)). Besides, we also found a MALAT1-miRNA-mRNA ceRNA regulatory network in acute and chronic lung diseases. Through this review, we hope to cast light on the regulatory mechanisms of MALAT1 in ALI and chronic lung disease and provide a promising approach for lung disease treatment.
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Affiliation(s)
- Xingning Lai
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdou, Sichuan, China
- Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital, Sichuan University, Chengdou, Sichuan, China
| | - Jie Zhong
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdou, Sichuan, China
- Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital, Sichuan University, Chengdou, Sichuan, China
| | - Aihua Zhang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdou, Sichuan, China
- Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital, Sichuan University, Chengdou, Sichuan, China
| | - Boyi Zhang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdou, Sichuan, China
- Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital, Sichuan University, Chengdou, Sichuan, China
| | - Tao Zhu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdou, Sichuan, China
- Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital, Sichuan University, Chengdou, Sichuan, China
- *Correspondence: Tao Zhu, ; Ren Liao,
| | - Ren Liao
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdou, Sichuan, China
- Research Unit for Perioperative Stress Assessment and Clinical Decision, Chinese Academy of Medical Sciences (2018RU012), West China Hospital, Sichuan University, Chengdou, Sichuan, China
- *Correspondence: Tao Zhu, ; Ren Liao,
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18
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Li H, Zheng X, Gao J, Leung KS, Wong MH, Yang S, Liu Y, Dong M, Bai H, Ye X, Cheng L. Whole transcriptome analysis reveals non-coding RNA's competing endogenous gene pairs as novel form of motifs in serous ovarian cancer. Comput Biol Med 2022; 148:105881. [DOI: 10.1016/j.compbiomed.2022.105881] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/30/2022] [Accepted: 07/16/2022] [Indexed: 11/03/2022]
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19
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Li S, Li B, Lang K, Gong Y, Cheng X, Deng S, Shi Q, Zhao H. LncRNA MALAT1 Participates in Protection of High-Molecular-Weight Hyaluronan against Smoke-Induced Acute Lung Injury by Upregulation of SOCS-1. Molecules 2022; 27:molecules27134128. [PMID: 35807375 PMCID: PMC9268129 DOI: 10.3390/molecules27134128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/19/2022] [Accepted: 06/23/2022] [Indexed: 11/16/2022] Open
Abstract
Smoke-induced acute lung injury (ALI) is a grievous disease with high mortality. Despite advances in medical intervention, no drug has yet been approved by the Food and Drug Administration (FDA) for ALI. In this study, we reported that pretreatment with high-molecular-weight hyaluronan (1600 kDa, HA1600) alleviated pulmonary inflammation and injury in mice exposed to smoke and also upregulated long non-coding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), as well as suppressor of cytokine signaling-1 (SOCS-1), in the lung tissues. Next, we overexpressed MALAT1 in the lungs by intratracheal administration of adenovirus cloned with MALAT1 cDNA and found that the survival of mice after smoke exposure was improved. Moreover, pulmonary overexpression of MALAT1 ameliorated smoke-induced ALI in mice and elevated the level of SOCS-1 in the lungs. In conclusion, the results pointed out that HA1600 exerted a protective effect against smoke-induced ALI through increasing the MALAT1 level and the subsequent SOCS-1 expression. Our study provides a potential therapeutic approach to smoke-induced ALI and a novel insight into the mechanism of action of HA1600.
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Affiliation(s)
| | | | | | | | | | | | - Qiwen Shi
- Correspondence: (Q.S.); (H.Z.); Tel.: +86-0571-88320494 (Q.S. & H.Z.)
| | - Hang Zhao
- Correspondence: (Q.S.); (H.Z.); Tel.: +86-0571-88320494 (Q.S. & H.Z.)
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20
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Hu J, Ge S, Sun B, Ren J, Xie J, Zhu G. Comprehensive Analysis of Potential ceRNA Network and Different Degrees of Immune Cell Infiltration in Acute Respiratory Distress Syndrome. Front Genet 2022; 13:895629. [PMID: 35719385 PMCID: PMC9198558 DOI: 10.3389/fgene.2022.895629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 04/04/2022] [Indexed: 11/15/2022] Open
Abstract
Acute respiratory distress syndrome (ARDS) is a leading cause of death in critically ill patients due to hypoxemic respiratory failure. The specific pathogenesis underlying ARDS has not been fully elucidated. In this study, we constructed a triple regulatory network involving competing endogenous RNA (ceRNA) to investigate the potential mechanism of ARDS and evaluated the immune cell infiltration patterns in ARDS patients. Overall, we downloaded three microarray datasets that included 60 patients with sepsis-induced ARDS and 79 patients with sepsis alone from the public Gene Expression Omnibus (GEO) database and identified differentially expressed genes (DEGs, including 9 DElncRNAs, 9 DEmiRNAs, and 269 DEmRNAs) by R software. The DEGs were subjected to the Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) for functional enrichment analysis, and a protein–protein interaction (PPI) network was generated for uncovering interactive relationships among DEmRNAs. Then, a ceRNA network that contained 5 DElncRNAs, 7 DEmiRNAs, and 71 DEmRNAs was established according to the overlapping genes in both DEGs and predicted genes by public databases. Finally, we identified the TUG1/miR-140-5p/NFE2L2 pathway as the hub pathway in the whole network through Cytoscape. In addition, we evaluated the distribution of 22 subtypes of immune cells and recognized three differentially expressed immune cells in patients with sepsis-induced ARDS by “Cell Type Identification by Estimating Relative Subsets of Known RNA Transcripts (CIBERSORT)” algorithm, namely, naive B cells, regulatory T cells, and eosinophils. Correlations between differentially expressed immune cells and hub genes in the ceRNA network were also performed. In conclusion, we demonstrated a new potential regulatory mechanism underlying ARDS (the TUG1/miR-140-5p/NFE2L2 ceRNA regulatory pathway), which may help in further exploring the pathogenesis of ARDS.
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Affiliation(s)
- Jiaxin Hu
- Department of Respiratory and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Shanhui Ge
- Department of Respiratory and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Borui Sun
- Department of Respiratory and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jianwei Ren
- Department of Respiratory and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Jiang Xie
- Department of Respiratory and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Guangfa Zhu
- Department of Respiratory and Critical Care Medicine, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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21
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Muhammad W, Zhu J, Zhai Z, Xie J, Zhou J, Feng X, Feng B, Pan Q, Li S, Venkatesan R, Li P, Cao H, Gao C. ROS-responsive polymer nanoparticles with enhanced loading of dexamethasone effectively modulate the lung injury microenvironment. Acta Biomater 2022; 148:258-270. [PMID: 35724918 PMCID: PMC9212862 DOI: 10.1016/j.actbio.2022.06.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 11/30/2022]
Abstract
The acute lung injury (ALI) is an inflammatory disorder associated with cytokine storm, which activates various reactive oxygen species (ROS) signaling pathways and causes severe complications in patients as currently seen in coronavirus disease 2019 (COVID-19). There is an urgent need for medication of the inflammatory lung environment and effective delivery of drugs to lung to reduce the burden of high doses of medications and attenuate inflammatory cells and pathways. Herein, we prepared dexamethasone-loaded ROS-responsive polymer nanoparticles (PFTU@DEX NPs) by a modified emulsion approach, which achieved high loading content of DEX (11.61 %). DEX was released faster from the PFTU@DEX NPs in a ROS environment, which could scavenge excessive ROS efficiently both in vitro and in vivo. The PFTU NPs and PFTU@DEX NPs showed no hemolysis and cytotoxicity. Free DEX, PFTU NPs and PFTU@DEX NPs shifted M1 macrophages to M2 macrophages in RAW264.7 cells, and showed anti-inflammatory modulation to A549 cells in vitro. The PFTU@DEX NPs treatment significantly reduced the increased total protein concentration in BALF of ALI mice. The delivery of PFTU@DEX NPs decreased the proportion of neutrophils significantly, mitigated the cell apoptosis remarkably compared to the other groups, reduced M1 macrophages and increased M2 macrophages in vivo. Moreover, the PFTU@DEX NPs had the strongest ability to suppress the expression of NLRP3, Caspase1, and IL-1β. Therefore, the PFTU@DEX NPs could efficiently suppress inflammatory cells, ROS signaling pathways, and cell apoptosis to ameliorate LPS-induced ALI. STATEMENT OF SIGNIFICANCE: The acute lung injury (ALI) is an inflammatory disorder associated with cytokine storm, which activates various reactive oxygen species (ROS) signaling pathways and causes severe complications in patients. There is an urgent need for medication of the inflammatory lung environment and effective delivery of drugs to modulate the inflammatory disorder and suppress the expression of ROS and inflammatory cytokines. The inhaled PFTU@DEX NPs prepared through a modified nanoemulsification method suppressed the activation of NLRP3, induced the polarization of macrophage phenotype from M1 to M2, and thereby reduced the neutrophil infiltration, inhibited the release of proteins and inflammatory mediators, and thus decreased the acute lung injury in vivo.
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Affiliation(s)
- Wali Muhammad
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiaqi Zhu
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Zihe Zhai
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jieqi Xie
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Jiahang Zhou
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Xudong Feng
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Bing Feng
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Qiaoling Pan
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Shifen Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Rajiu Venkatesan
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Pan Li
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China
| | - Hongcui Cao
- State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd., Hangzhou 310003, China.
| | - Changyou Gao
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China.
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22
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Ding N, Li P, Li H, Lei Y, Zhang Z. The ROCK-ezrin signaling pathway mediates LPS-induced cytokine production in pulmonary alveolar epithelial cells. Cell Commun Signal 2022; 20:65. [PMID: 35551614 PMCID: PMC9097379 DOI: 10.1186/s12964-022-00879-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 04/07/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Ezrin/radixin/moesin (ERM) proteins are members of the protein 4.1 superfamily and function as linkers that connect the actin cytoskeleton to the plasma membrane of cells. ERM also play critical role in the Lipopolysaccharide (LPS)-induced inflammatory response. However, the signaling mechanisms involved in this process remain unclear. In this study, we aimed to investigate the potential role of the rho-associated coiled-coil containing protein kinase (ROCK) pathway in LPS-induced ezrin phosphorylation and cytokine production in pulmonary alveolar epithelial cells. METHODS Cultured A549 and HPAEpiC cells were treated with LPS. The expression and localization of ezrin in A549 and HPAEpiC cells were then analyzed by western blotting and immunoflurescence. Activation of RhoA/ROCK was assessed by western blotting and RhoA activity assays. The interaction of ezrin with Syk and myeloid differentiation factor 88 (MyD88)/IL-1R-associated kinase 1 (IRAK-1) was investigated by co-immunoprecipitation. The activation of nuclear factor-κB (NF-κB) and mitogen-activated protein kinase (MAPK) was measured with electrophoretic mobility shift assays and by western blotting. ELISA and western blotting were performed to detect the levels of tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β), and high mobility group box 1 protein (HMGB1) release into the culture supernatant, and cellular HMGB1 levels. RESULTS LPS induced ezrin phosphorylation in a concentration- and time-dependent manner. The blockade of RhoA/ROCK inhibited LPS-induced ezrin phosphorylation and its translocation from the cytoplasm to the cell membrane. Co-immunoprecipitation assays further revealed that ezrin associated with Syk constitutively, but only associated with MyD88/IRAK-1 upon LPS challenge. Moreover, LPS-induced p38 and nuclear NF-κB activation was found to be ezrin dependent. The suppression of ezrin by siRNA or the blockade of ROCK activation with Y-27632 reduced the production of TNF-α, IL-1β, and HMGB1 in response to LPS. CONCLUSIONS Our findings reveal a novel regulatory mechanism involving ezrin in the LPS-induced production of pro-inflammatory cytokines, and highlight the importance of the RhoA/ROCK-ezrin/Syk-MyD88/IRAK1 axis. Data presented in this manuscript provide novel insights into the signaling pathways activated in pulmonary alveolar epithelial cells by LPS. Video Abstract.
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Affiliation(s)
- Ning Ding
- Department of Anesthesiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250031, Shandong, China.
| | - Pibao Li
- Department of Intensive Care Unit, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250031, China
| | - Huiqing Li
- Department of Anesthesiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250031, Shandong, China
| | - Yunlong Lei
- Department of Anesthesiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250031, Shandong, China
| | - Zengzhen Zhang
- Department of Anesthesiology, Shandong Provincial Third Hospital, Cheeloo College of Medicine, Shandong University, Jinan, 250031, Shandong, China
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23
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Liu X, Zhao T, Yuan Z, Ge S. MIR600HG sponges miR-125a-5p to regulate glycometabolism and cisplatin resistance of oral squamous cell carcinoma cells via mediating RNF44. Cell Death Discov 2022; 8:216. [PMID: 35443748 PMCID: PMC9021257 DOI: 10.1038/s41420-022-01000-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 02/07/2022] [Accepted: 02/16/2022] [Indexed: 12/11/2022] Open
Abstract
There is increasing evidence that dysregulated long non-coding RNA (lncRNA) is implicated in tumorigenesis and progression. We aim to explore the role of lncRNA MIR600HG in glycometabolism and cisplatin (DDP) resistance of oral squamous cell carcinoma (OSCC) cells via regulating microRNA-125a-5p (miR-125a-5p) and RING finger 44 (RNF44). Expression of MIR600HG, miR-125a-5p, and RNF44 in OSCC clinical samples, cell lines, and DDP-resistant OSCC cells (SCC-9/DDP) was determined. In SCC-9 cells, proliferation, IC50 value of DDP, migration, invasion, and apoptosis were detected; in SCC-9/DDP cells, proliferation, IC50 value of DDP, apoptosis, glucose consumption, and production of lactic acid and ATP were evaluated. The interaction of MR600HG, miR-125a-5p, and RNF44 was verified. MIR600HG and RNF44 were upregulated while miR-125a-5p was downregulated in OSCC tissues and cell lines, and also in SCC-9/DDP cells. In SCC-9 cells, MIR600HG overexpression improved cell growth, metastasis, and inhibited cell susceptibility to DDP; in SCC-9/DDP cells, silencing of MIR600HG promoted apoptosis, improved DDP sensitivity, and inhibited cell glycolysis. Downregulation of miR-125a-5p showed the opposite effect to downregulation of MIR600HG. MIR600HG bound to miR-125a-5p and miR-125a-5p targeted RNF44. Downregulation of miR-125a-5p reversed the improvement of DDP sensitivity and the inhibition of cell glycolysis by downregulated MIR600HG on SCC-9/DDP cells. Downregulating RNF44 reversed the promotion of DDP resistance and cell glycolysis of SCC-9/DDP cells mediated by downregulation of miR-125a-5p. Collectively, our study addresses that MIR600HG downregulation elevates miR-125a-5p and reduces RNF44 expression, thereby improving DDP sensitivity and inhibiting glycolysis in DDP-resistant OSCC cells.
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Affiliation(s)
- Xingguang Liu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration, Jinan, Shandong, 250012, China
| | - Tengda Zhao
- Department of Oral and Maxillofacial surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Zhe Yuan
- The Affiliated Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China
| | - Shaohua Ge
- The Affiliated Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, Guangdong, 510055, China.
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24
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Yang S, Liu F, Wang D. Long noncoding RNA Kcnq1ot1 prompts lipopolysaccharide-induced acute lung injury by microRNA-7a-5p/Rtn3 axis. Eur J Med Res 2022; 27:46. [PMID: 35317842 PMCID: PMC8939215 DOI: 10.1186/s40001-022-00653-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 02/07/2022] [Indexed: 12/05/2022] Open
Abstract
Background Long noncoding RNA (lncRNA)-regulated mechanism in acute lung injury (ALI) has attracted special interests in study researches. We planned to disclose whether KCNQ1 overlapping transcript 1 (Kcnq1ot1) is involved in ALI and its mechanism. Methods The lipopolysaccharide (LPS)-induced ALI model was established in mice. Kcnq1ot1, microRNA (miR)-7a-5p and Reticulon 3 (Rtn3) levels were measured in lung tissues of mice. The vector that changed Kcnq1ot1, miR-7a-5p and Rtn3 expression was injected into LPS-treated mice, and pathological damage, fibrosis, apoptosis and inflammatory response were subsequently examined in lung tissues. The relation between Kcnq1ot1 and miR-7a-5p, and that between miR-7a-5p and Rtn3 were identified. Results Kcnq1ot1 and Rtn3 expression increased while miR-7a-5p expression decreased in LPS-treated mice. Reduced Kcnq1ot1 or elevated miR-7a-5p alleviated pathological damage, fibrosis, apoptosis and inflammatory response in ALI mice, while overexpressed Rtn3 worsened ALI in mice. Downregulation of Rtn3 reversed the exacerbation of miR-7a-5p downregulation in ALI mice. Kcnq1ot1 competitively bound to miR-7a-5p and miR-7a-5p negatively mediated Rtn3 expression. Conclusion Our experiments evidence that silencing Kcnq1ot1 upregulates miR-7a-5p to suppress Rtn3 expression, thereby diminishing LPS-induced ALI. Supplementary Information The online version contains supplementary material available at 10.1186/s40001-022-00653-8.
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Affiliation(s)
- Shuo Yang
- Department of Geriatrics, Daqing Qilfield General Hospital, Daqing, 163000, Heilongjiang, China
| | - Fang Liu
- Department of Geriatrics, Daqing Qilfield General Hospital, Daqing, 163000, Heilongjiang, China
| | - Di Wang
- Department of Prosthodontics, Daqing Qilfield General Hospital, Zhongkang Street No. 9, Sartu District, Daqing, 163000, Heilongjiang, China.
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25
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Wang R, Zheng X, Wang J, Wan S, Song F, Wong MH, Leung KS, Cheng L. Improving bulk RNA-seq classification by transferring gene signature from single cells in acute myeloid leukemia. Brief Bioinform 2022; 23:6523149. [PMID: 35136933 DOI: 10.1093/bib/bbac002] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 12/22/2021] [Accepted: 01/04/2022] [Indexed: 12/13/2022] Open
Abstract
The advances in single-cell RNA sequencing (scRNA-seq) technologies enable the characterization of transcriptomic profiles at the cellular level and demonstrate great promise in bulk sample analysis thereby offering opportunities to transfer gene signature from scRNA-seq to bulk data. However, the gene expression signatures identified from single cells are typically inapplicable to bulk RNA-seq data due to the profiling differences of distinct sequencing technologies. Here, we propose single-cell pair-wise gene expression (scPAGE), a novel method to develop single-cell gene pair signatures (scGPSs) that were beneficial to bulk RNA-seq classification to transfer knowledge across platforms. PAGE was adopted to tackle the challenge of profiling differences. We applied the method to acute myeloid leukemia (AML) and identified the scGPS from mouse scRNA-seq that allowed discriminating between AML and control cells. The scGPS was validated in bulk RNA-seq datasets and demonstrated better performance (average area under the curve [AUC] = 0.96) than the conventional gene expression strategies (average AUC$\le$ 0.88) suggesting its potential in disclosing the molecular mechanism of AML. The scGPS also outperformed its bulk counterpart, which highlighted the benefit of gene signature transfer. Furthermore, we confirmed the utility of scPAGE in sepsis as an example of other disease scenarios. scPAGE leveraged the advantages of single-cell profiles to enhance the analysis of bulk samples revealing great potential of transferring knowledge from single-cell to bulk transcriptome studies.
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Affiliation(s)
- Ran Wang
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen 518020, China.,Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Xubin Zheng
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen 518020, China.,Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Jun Wang
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen 518020, China
| | - Shibiao Wan
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Fangda Song
- School of Data Science, The Chinese University of Hong Kong, Shenzhen 518000, China
| | - Man Hon Wong
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Kwong Sak Leung
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Lixin Cheng
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen 518020, China
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26
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Xue Y, Ke J, Zhou X, Chen Q, Chen M, Huang T, Lin F, Chen F. Knockdown of LncRNA MALAT1 Alleviates Coxsackievirus B3-Induced Acute Viral Myocarditis in Mice via Inhibiting Th17 Cells Differentiation. Inflammation 2022; 45:1186-1198. [PMID: 35088199 DOI: 10.1007/s10753-021-01612-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/08/2021] [Accepted: 12/10/2021] [Indexed: 11/05/2022]
Abstract
Acute viral myocarditis (AVMC), most often caused by coxsackievirus B3 (CVB3) infection, is characterized by myocardial inflammation associated with high morbidity and mortality. A pathogenic role for T helper (Th) 17 cells in AVMC is well established. Long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) has been shown to play a key role in various inflammatory diseases. However, the expression of MALAT1 and its impact on Th17 cells differentiation in AVMC remain unclear. In the present study, we found that MALAT1 was highly expressed in mice with AVMC, and the expression was correlated positively with cardiac pathological scores, cardiac IL-17 mRNA expression, and the percentages of splenic Th17 cells. We further demonstrated that MALAT1 knockdown could significantly alleviate the severity of disease and inhibit the differentiation of Th17 cells, accompanying the reduced mRNA expression of RORγt and productions of Th17-related pro-inflammatory cytokines in vivo. Additionally, in vitro analysis showed that MALAT1 knockdown suppressed naïve CD4+ T cells differentiation towards Th17 cells. In conclusion, our results suggest that MALAT1 knockdown alleviates CVB3-induced AVMC in mice, which may be partially attributable to the decline in Th17 cells responses. MALAT1 may serve as a novel therapeutic option in AVMC.
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Affiliation(s)
- Yimin Xue
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,The Fourth Department of Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, 350001, Fujian, People's Republic of China
| | - Jun Ke
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,Department of Emergency, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, 350001, Fujian, People's Republic of China
| | - Xiaofen Zhou
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,The Fourth Department of Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China.,Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, 350001, Fujian, People's Republic of China
| | - Qian Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,The Fourth Department of Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China
| | - Mingguang Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,The Fourth Department of Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China
| | - Tingfeng Huang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,The Fourth Department of Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China
| | - Fenghui Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China.,The Fourth Department of Intensive Care Unit, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China
| | - Feng Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, Fujian, People's Republic of China. .,Department of Emergency, Fujian Provincial Hospital, Fuzhou, 350001, Fujian, People's Republic of China. .,Fujian Provincial Key Laboratory of Emergency Medicine, Fuzhou, 350001, Fujian, People's Republic of China.
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27
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Jia X, Huang J, Wu B, Yang M, Xu W. A Competitive Endogenous RNA Network Based on Differentially Expressed lncRNA in Lipopolysaccharide-Induced Acute Lung Injury in Mice. Front Genet 2021; 12:745715. [PMID: 34917127 PMCID: PMC8669720 DOI: 10.3389/fgene.2021.745715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 10/14/2021] [Indexed: 12/03/2022] Open
Abstract
Non-coding RNAs have remarkable roles in acute lung injury (ALI) initiation. Nevertheless, the significance of long non-coding RNAs (lncRNAs) in ALI is still unknown. Herein, we purposed to identify potential key genes in ALI and create a competitive endogenous RNA (ceRNA) modulatory network to uncover possible molecular mechanisms that affect lung injury. We generated a lipopolysaccharide-triggered ALI mouse model, whose lung tissue was subjected to RNA sequencing, and then we conducted bioinformatics analysis to select genes showing differential expression (DE) and to build a lncRNA-miRNA (microRNA)- mRNA (messenger RNA) modulatory network. Besides, GO along with KEGG assessments were conducted to identify major biological processes and pathways, respectively, involved in ALI. Then, RT-qPCR assay was employed to verify levels of major RNAs. A protein-protein interaction (PPI) network was created using the Search Tool for the Retrieval of Interacting Genes (STRING) database, and the hub genes were obtained with the Molecular Complex Detection plugin. Finally, a key ceRNA subnetwork was built from major genes and their docking sites. Overall, a total of 8,610 lncRNAs were identified in the normal and LPS groups. Based on the 308 DE lncRNAs [p-value < 0.05, |log2 (fold change) | > 1] and 3,357 DE mRNAs [p-value < 0.05, |log2 (fold change) | > 1], lncRNA-miRNA and miRNA-mRNA pairs were predicted using miRanda. The lncRNA-miRNA-mRNA network was created from 175 lncRNAs, 22 miRNAs, and 209 mRNAs in ALI. The RT-qPCR data keep in step with the RNA sequencing data. GO along with KEGG analyses illustrated that DE mRNAs in this network were mainly bound up with the inflammatory response, developmental process, cell differentiation, cell proliferation, apoptosis, and the NF-kappa B, PI3K-Akt, HIF-1, MAPK, Jak-STAT, and Notch signaling pathways. A PPI network on the basis of the 209 genes was established, and three hub genes (Nkx2-1, Tbx2, and Atf5) were obtained from the network. Additionally, a lncRNA-miRNA-hub gene subnetwork was built from 15 lncRNAs, 3 miRNAs, and 3 mRNAs. Herein, novel ideas are presented to expand our knowledge on the regulation mechanisms of lncRNA-related ceRNAs in the pathogenesis of ALI.
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Affiliation(s)
- Xianxian Jia
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jinhui Huang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Bo Wu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Miao Yang
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Wei Xu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
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28
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Zhang S, Tang C, Wang X. Octreotide activates autophagy to alleviate lipopolysaccharide-induced human pulmonary epithelial cell injury by inhibiting the protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway. Bioengineered 2021; 13:217-226. [PMID: 34898367 PMCID: PMC8805934 DOI: 10.1080/21655979.2021.2012908] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Octreotide is a synthetic octapeptide of natural somatostatin. We aimed to investigate the influence of Octreotide on lipopolysaccharide (LPS)-stimulated human pulmonary epithelial cell damage. After stimulated by LPS, BEAS-2B cells were treated with various concentrations of Octreotide. CCK-8 assay and LDH kits were to evaluate cell cytotoxicity. ELISA kits were to analyze the levels of inflammatory factors. TUNEL staining was to measure cell apoptosis. Western blot assay was used to assess the expression of apoptosis-related proteins, autophagy-related proteins and AKT/mTOR signaling-related proteins. Then, 3-methyladenine (3-MA) was adopted for treating BEAS-2B cells to determine its effects on inflammation and apoptosis. Afterward, adding AKT agonist (SC79) or mTOR antagonist (rapamycin) to explore the impact of Octreotide on autophagy. Results revealed that Octreotide notably enhanced cell viability and reduced LDH activity. The levels of inflammatory factors were significantly decreased following Octreotide treatment. Additionally, Octreotide attenuated the apoptotic capacity of LPS-induced BEAS-2B cells, led to the up-regulation of Bcl-2 protein level while cut down the protein levels of Bax and cleaved caspase3. Remarkably, the expression of autophagy-related protein LC3II/I and Beclin1 was elevated after Octreotide administration. Importantly, the suppressive effects of Octreotide on the inflammation and apoptosis of LPS-induced BEAS-2B cells was abrogated by 3-MA. Further experiments suggested that Octreotide downregulated p-AKT and mTOR expression in LPS-stimulated BEAS-2B cells. SC79 addition inhibited autophagy, evidenced by downregulated LC3II/I and Beclin1 expression while rapamycin presented the opposite effects. To conclude, Octreotide activates autophagy to alleviate LPS-induced pulmonary epithelial cell injury by inhibiting the AKT/mTOR signaling.
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Affiliation(s)
- Sumian Zhang
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Cijun Tang
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuebin Wang
- Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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29
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Emerging role of long non-coding RNAs in endothelial dysfunction and their molecular mechanisms. Biomed Pharmacother 2021; 145:112421. [PMID: 34798473 DOI: 10.1016/j.biopha.2021.112421] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/10/2021] [Accepted: 11/10/2021] [Indexed: 02/06/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are the novel class of transcripts involved in transcriptional, post-transcriptional, translational, and post-translational regulation of physiology and the pathology of diseases. Studies have evidenced that the impairment of endothelium is a critical event in the pathogenesis of atherosclerosis and its complications. Endothelial dysfunction is characterized by an imbalance in vasodilation and vasoconstriction, oxidative stress, proinflammatory factors, and nitric oxide bioavailability. Disruption of the endothelial barrier permeability, the first step in developing atherosclerotic lesions is a consequence of endothelial dysfunction. Though several factors interfere with the normal functioning of the endothelium, intrinsic epigenetic mechanisms governing endothelial function are regulated by lncRNAs and perturbations contribute to the pathogenesis of the disease. This review comprehensively addresses the biogenesis of lncRNA and molecular mechanisms underlying and regulation in endothelial function. An insight correlating lncRNAs and endothelial dysfunction-associated diseases can positively impact the development of novel biomarkers and therapeutic targets in endothelial dysfunction-associated diseases and treatment strategies.
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30
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Song Y, Zhu S, Zhang N, Cheng L. Blood Circulating miRNA Pairs as a Robust Signature for Early Detection of Esophageal Cancer. Front Oncol 2021; 11:723779. [PMID: 34368003 PMCID: PMC8343071 DOI: 10.3389/fonc.2021.723779] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/08/2021] [Indexed: 01/07/2023] Open
Abstract
Esophageal cancer (EC) is a common malignant tumor in the digestive system which is often diagnosed at the middle and late stages. Noninvasive diagnosis using circulating miRNA as biomarkers enables accurate detection of early-stage EC to reduce mortality. We built a diagnostic signature consisting of four miRNA pairs for the early detection of EC using individualized Pairwise Analysis of Gene Expression (iPAGE). Profiling of miRNA expression identified 496 miRNA pairs with significant relative expression change. Four miRNA pairs consistently selected from LASSO were used to construct the final diagnostic model. The performance of the signature was validated using two independent datasets, yielding both AUCs and PRCs over 0.99. Furthermore, precision, recall, and F-score were also evaluated for clinical application, when a fixed threshold is given, resulting in all the scores are larger than 0.92 in the training set, test set, and two validation sets. Our results suggested that the 4-miRNA signature is a new biomarker for the early diagnosis of patients with EC. The clinical use of this signature would have improved the detection of EC for earlier therapy and more favorite prognosis.
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Affiliation(s)
- Yang Song
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, China
| | - Suzhu Zhu
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, China
| | - Ning Zhang
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, China
| | - Lixin Cheng
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, China
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Lu Y, Gao Z, Liu C, Long M, Yang L, Li R, Dong K, Zhang H. Integrative analysis of lncRNA-miRNA-mRNA-associated competing endogenous RNA regulatory network involved in EV71 infection. Am J Transl Res 2021; 13:7440-7457. [PMID: 34377228 PMCID: PMC8340214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 05/13/2021] [Indexed: 06/13/2023]
Abstract
The competing endogenous RNA (ceRNA) axis has been shown to play a critical role in the pathogenesis of various viral infections. Generally, the ceRNA network involves long non-coding RNAs (lncRNAs) that act as sponges for miRNA to regulate mRNA expression. However, no information is available regarding the involvement of ceRNA networks in Enterovirus type 71 (EV71) infections. In the present study, data obtained from Gene Expression Omnibus (GEO) database was analyzed using various bioinformatics tools. EV71 infection in rhabdomyosarcoma (RD) cells was associated with differential expression of six lncRNAs, 28 miRNAs, and 349 mRNAs. Gene function enrichment analysis suggested induction of cytoplasmic vesicle process upon EV71 infection. The ceRNA networks were constructed, in which 20 hub genes were predicted by protein-protein interaction. To confirm the MALAT1/miR-194-5p/DUSP1 ceRNA regulatory axis in EV71 infection, real-time quantitative polymerase chain reaction (qRT-PCR) and luciferase reporter assay were performed. The results of the study also revealed the involvement of the MALAT1/miR-194-5p axis in apoptosis induced by EV71 infection, while no association with autophagy was observed. Thus, the present study provided novel insights into the pathogenic mechanism of EV71 infection.
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Affiliation(s)
- Yanzhi Lu
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
- Department of Microbiology and Pathogen Biology, Basic Medical School, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Zhaowei Gao
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Chong Liu
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Min Long
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Longfei Yang
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Ruicheng Li
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Ke Dong
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
| | - Huizhong Zhang
- Department of Clinical Diagnosis, Tangdu Hospital, Air Force Medical UniversityXi’an, Shaanxi, China
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Yao W, Xu L, Jia X, Li S, Wei L. MicroRNA‑129 plays a protective role in sepsis‑induced acute lung injury through the suppression of pulmonary inflammation via the modulation of the TAK1/NF‑κB pathway. Int J Mol Med 2021; 48:139. [PMID: 34080641 PMCID: PMC8175065 DOI: 10.3892/ijmm.2021.4972] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 05/07/2021] [Indexed: 12/18/2022] Open
Abstract
Excessive inflammatory response and apoptosis play key roles in the pathogenic mechanisms of sepsis-induced acute lung injury (ALI); however, the molecular pathways linked to ALI pathogenesis remain unclear. Recently, microRNAs (miRNAs/miRs) have emerged as important regulators of inflammation and apoptosis in sepsis-induced ALI; however, the exact regulatory mechanisms of miRNAs remain poorly understood. In the present study, the gene microarray dataset GSE133733 obtained from the Gene Expression Omnibus database was analyzed and a total of 38 differentially regulated miRNAs were identified, including 17 upregulated miRNAs and 21 downregulated miRNAs, in mice with lipopolysaccharide (LPS)-induced ALI, in comparison to the normal control mice. miR-129 was found to be the most significant miRNA, among the identified miRNAs. The upregulation of miR-129 markedly alleviated LPS-induced lung injury, as indicated by the decrease in lung permeability in and the wet-to-dry lung weight ratio, as well as the improved survival rate of mice with ALI administered miR-129 mimic. Moreover, the upregulation of miR-129 reduced pulmonary inflammation and apoptosis in mice with ALI. Of note, transforming growth factor activated kinase-1 (TAK1), a well-known regulator of the nuclear factor-κB (NF-κB) pathway, was directly targeted by miR-129 in RAW 264.7 cells. More importantly, miR-129 upregulation impeded the LPS-induced activation of the TAK1/NF-κB signaling pathway, as illustrated by the suppression of the nuclear phosphorylated-p65, p-IκB-α and p-IKKβ expression levels. Collectively, the findings of the present study indicate that miR-129 protects mice against sepsis-induced ALI by suppressing pulmonary inflammation and apoptosis through the regulation of the TAK1/NF-κB signaling pathway. This introduces the basis for future research concerning the application of miR-129 and its targets for the treatment of ALI.
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Affiliation(s)
- Wenjian Yao
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450003, P.R. China
| | - Lei Xu
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450003, P.R. China
| | - Xiangbo Jia
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450003, P.R. China
| | - Saisai Li
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450003, P.R. China
| | - Li Wei
- Department of Thoracic Surgery, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, School of Clinical Medicine, Henan University, Zhengzhou, Henan 450003, P.R. China
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Whole transcriptome analysis of the differential RNA profiles and associated competing endogenous RNA networks in LPS-induced acute lung injury (ALI). PLoS One 2021; 16:e0251359. [PMID: 33961683 PMCID: PMC8104378 DOI: 10.1371/journal.pone.0251359] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/23/2021] [Indexed: 02/05/2023] Open
Abstract
Acute lung injury (ALI) is a serious inflammation disease usually arises alveolar epithelial membrane dysfunction and even causes death. Therefore, the aims of this study are to screen the differentially expressed lncRNAs, circRNAs, miRNAs, and mRNAs in ALI based on the high-throughput sequencing. The lipopolysaccharide (LPS)-induced ALI mouse model was established, the injury of ALI mouse model was evaluated through histological analysis with hemotoxylin and eosin (H & E) staining assay, dry/wet ratio, infiltrated-immune cells, ET-1 mRNA expression and released-proinflammation factors. Then, expression data of lncRNAs, circRNAs, miRNAs and mRNAs in ALI were acquired using whole-transcriptome sequencing. The differential expression of lncRNAs (DE lncRNAs), circRNAs (DE circRNAs), miRNAs (DE miRNAs) and mRNAs (DE mRNAs) were identified, and the lncRNA-miRNA-mRNA network and circRNA-miRNA-mRNA network were constructed, and the biological function of target genes were annotated based on bioinformatics analysis. In the present study, the LPS-induced ALI mouse model was successfully established. The biological analysis results showed that total 201 DE lncRNAs, 172 DE circRNAs, 62 DE miRNAs, and 3081 DE mRNAs were identified in ALI. The 182 lncRNA-miRNA-mRNA networks and 32 circRNA-miRNA-mRNA networks were constructed were constructed based on the correlation between lncRNAs/circRNAs, miRNAs, mRNAs. The biological function analysis indicated that TNF signaling pathway, chemokine signaling pathway and so on involved in ALI. In the present study, the differential expression coding and non-coding RNAs (ncRNAs) in ALI were identified, and their regulatory networks were constructed. There might provide the potential biomarkers and underlying mechanism for ALI diagnosis and treatment.
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Luo YH, Huang ZT, Zong KZ, Cao ZR, Peng DD, Zhou BY, Shen A, Yan P, Wu ZJ. miR-194 ameliorates hepatic ischemia/reperfusion injury via targeting PHLDA1 in a TRAF6-dependent manner. Int Immunopharmacol 2021; 96:107604. [PMID: 33839577 DOI: 10.1016/j.intimp.2021.107604] [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: 01/27/2021] [Revised: 03/09/2021] [Accepted: 03/18/2021] [Indexed: 02/07/2023]
Abstract
Hepatic ischemia/reperfusion injury (IRI) is an inevitable pathological process in liver resection, shock and transplantation. However, the internal mechanism of hepatic IRI, including inflammatory transduction of multiple signaling pathways, is not fully understood. In the present study, we identified pleckstrin homology-like domain family member 1 (PHLDA1), suppressed by microRNA (miR)-194, as a critical intersection of dual inflammatory signals in hepatic IRI. PHLDA1 was upregulated in hepatic IRI with a concomitant downregulation of miR-194. Overexpression of miR-194 diminished PHLDA1 and inhibitors of the nuclear factor kappa-B kinase (IKK) pathway, thus leading to remission of hepatic pathological injury, apoptosis and release of cytokines. Further enrichment of PHLDA1 reversed the function of miR-194 both in vivo and in vitro. For an in-depth query, we verified PHLDA1 as a direct target of miR-194. Notably, inflammatory signal transduction of PHLDA1 was induced by activating TNF receptor-associated factor 6 (TRAF6), sequentially initiating IKK and mitogen-activated protein kinase (MAPK), both of which aggravate stress and inflammation in hepatic IRI. In conclusion, the miR-194/PHLDA1 axis was a key upstream regulator of IKK and MAPK in hepatic IRI. Targeting PHLDA1 might be a potential strategy for hepatic IRI therapy.
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Affiliation(s)
- Yun-Hai Luo
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zuo-Tian Huang
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ke-Zhen Zong
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zhen-Rui Cao
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Da-Di Peng
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Bao-Yong Zhou
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Ai Shen
- Hepatobiliary Pancreatic Tumor Center, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Ping Yan
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Zhong-Jun Wu
- The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China.
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Wang D, Dai C, Zhang X, Gu C, Liu M, Liu H, Yang F, Wu H, Wang Y. Identification and Functional Analysis of Long Non-coding RNAs in Human Pulmonary Microvascular Endothelial Cells Subjected to Cyclic Stretch. Front Physiol 2021; 12:655971. [PMID: 33868024 PMCID: PMC8047408 DOI: 10.3389/fphys.2021.655971] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/16/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Despite decades of intense research, the pathophysiology and pathogenesis of acute respiratory distress syndrome (ARDS) are not adequately elucidated, which hamper the improvement of effective and convincing therapies for ARDS patients. Mechanical ventilation remains to be one of the primary supportive approaches for managing ARDS cases. Nevertheless, mechanical ventilation leads to the induction of further aggravating lung injury which is known as leading to ventilator-induced lung injury (VILI). It has been reported that lncRNAs play important roles in various cellular process through transcriptional, posttranscriptional, translational, and epigenetic regulations. However, to our knowledge, there is no investigation of the expression profile and functions of transcriptome-level endothelium-related lncRNAs in VILI yet. Methods: To screen the differential expression of lncRNAs and mRNAs in Human pulmonary microvascular endothelial cells (HPMECs) subjected to cyclic stretch, we constructed a cellular model of VILI, followed by transcriptome profiling using Affymetrix Human Transcriptome Array 2.0. Bioinformatics analyses, including functional and pathway enrichment analysis, protein-protein interaction network, lncRNA-mRNA coexpression network, and cis-analyses, were performed to reveal the potential functions and underlying mechanisms of differentially expressed lncRNAs. Results: In total, 199 differentially expressed lncRNAs (DELs) and 97 differential expressed mRNAs were screened in HPMECs subjected to 20% cyclic stretch for 2 h. The lncRNA-mRNA coexpression network suggested that DELs mainly enriched in response to hypoxia, response to oxidative stress, inflammatory response, cellular response to hypoxia, and NF-kappa B signaling pathway. LncRNA n335470, n406639, n333984, and n337322 might regulate inflammation and fibrosis induced by cyclic stretch through cis- or trans-acting mechanisms. Conclusion: This study provides the first transcriptomic landscape of differentially expressed lncRNAs in HPMECs subjected to cyclic stretch, which provides novel insights into the molecular mechanisms and potential directions for future basic and clinical research of VILI.
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Affiliation(s)
- Dong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China
| | - Chenyang Dai
- Department of Ophthalmology, Qilu Hospital of Shandong University, Jinan, China
| | - Xiaoning Zhang
- Department of Anesthesiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Cheeloo College of Medicine, Jinan, China
| | - Changping Gu
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China
| | - Mengjie Liu
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China
| | - Huan Liu
- Department of Anesthesiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Cheeloo College of Medicine, Jinan, China
| | - Fan Yang
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China
| | - Haifeng Wu
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China
| | - Yuelan Wang
- Department of Anesthesiology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Institute of Anesthesia and Respiratory Critical Medicine, Jinan, China.,Department of Anesthesiology, Shandong Provincial Qianfoshan Hospital, Shandong University, Cheeloo College of Medicine, Jinan, China
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Cheng L, Zeng Y, Hu S, Zhang N, Cheung KCP, Li B, Leung KS, Jiang L. Systematic prediction of autophagy-related proteins using Arabidopsis thaliana interactome data. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 105:708-720. [PMID: 33128829 DOI: 10.1111/tpj.15065] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/09/2020] [Accepted: 10/21/2020] [Indexed: 06/11/2023]
Abstract
Autophagy is a self-degradative process that is crucial for maintaining cellular homeostasis by removing damaged cytoplasmic components and recycling nutrients. Such an evolutionary conserved proteolysis process is regulated by the autophagy-related (Atg) proteins. The incomplete understanding of plant autophagy proteome and the importance of a proteome-wide understanding of the autophagy pathway prompted us to predict Atg proteins and regulators in Arabidopsis. Here, we developed a systems-level algorithm to identify autophagy-related modules (ARMs) based on protein subcellular localization, protein-protein interactions, and known Atg proteins. This generates a detailed landscape of the autophagic modules in Arabidopsis. We found that the newly identified genes in each ARM tend to be upregulated and coexpressed during the senescence stage of Arabidopsis. We also demonstrated that the Golgi apparatus ARM, ARM13, functions in the autophagy process by module clustering and functional analysis. To verify the in silico analysis, the Atg candidates in ARM13 that are functionally similar to the core Atg proteins were selected for experimental validation. Interestingly, two of the previously uncharacterized proteins identified from the ARM analysis, AGD1 and Sec14, exhibited bona fide association with the autophagy protein complex in plant cells, which provides evidence for a cross-talk between intracellular pathways and autophagy. Thus, the computational framework has facilitated the identification and characterization of plant-specific autophagy-related proteins and novel autophagy proteins/regulators in higher eukaryotes.
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Affiliation(s)
- Lixin Cheng
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, China
| | - Yonglun Zeng
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Shuai Hu
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ning Zhang
- Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medicine College of Jinan University, Shenzhen, China
| | - Kenneth C P Cheung
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Baiying Li
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Kwong-Sak Leung
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Liwen Jiang
- School of Life Sciences, Centre for Cell & Developmental Biology and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- CUHK Shenzhen Research Institute, Shenzhen, China
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