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Guo C, Yu M, Liu J, Jia Z, Liu H, Zhao S. Molecular mechanism of Wilms tumour 1-associated protein in diabetes-related dry eye disease by mediating m6A methylation modification of lncRNA NEAT1. J Drug Target 2024; 32:200-212. [PMID: 38153328 DOI: 10.1080/1061186x.2023.2300682] [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: 08/07/2023] [Accepted: 12/24/2023] [Indexed: 12/29/2023]
Abstract
Background: Dry eye disease (DED) is often secondary to diabetes mellitus (DM).Purpose: This study is to explore the action of Wilms tumor 1-associated protein (WTAP) in DM-DED via lncRNA NEAT1 m6A methylation.Methods: DM-DED mouse models were treated with sh-WTAP/sh-NEAT1, followed by assessment of corneal epithelial damage/histopathological changes. HCE-2 cells were exposed to hyperosmotic conditions to establish in vitro DED models and treated with oe-NEAT1/sh-NEAT1/sh-WTAP/nigericin (an NLRP3 inflammasome inducer). Cell viability/apoptosis were evaluated by CCK-8/TUNEL. Levels of WTAP/NEAT1/inflammatory factors/NLRP3 inflammasome- and apoptosis-related markers were determined. m6A modification was examined by MeRIP-qPCR and NEAT1 stability was also detected.Results: DM-DED mice exhibited up-regulated WTAP/NEAT1 expression and severe corneal damage, whereas WTAP/NEAT1 knockdown alleviated inflammation/corneal damage. In hyperosmolarity-induced HCE-2 cells, NEAT1 aggravated inflammation and apoptosis, while NEAT1 knockdown suppressed NLRP3 inflammasome activation and ameliorated cell injury. Hyperosmolarity-induced WTAP expression increased m6A modification and NEAT1 mRNA stability. WTAP mediated m6A methylation of NEAT1 and NLRP3 inflammasome activation in DM-DED mice.
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Affiliation(s)
- Chen Guo
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Mingyi Yu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Jinghua Liu
- School of Medicine, Nankai University, Tianjin, China
| | - Zhe Jia
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Hui Liu
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
| | - Shaozhen Zhao
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, China
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Sang T, Wang Y, Wang Z, Sun D, Dou S, Yu Y, Wang X, Zhao C, Wang Q. NEAT1 Deficiency Promotes Corneal Epithelial Wound Healing by Activating cAMP Signaling Pathway. Invest Ophthalmol Vis Sci 2024; 65:10. [PMID: 38466291 DOI: 10.1167/iovs.65.3.10] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024] Open
Abstract
Purpose This study aimed to investigate the role of the long non-coding RNA (lncRNA) NEAT1 in corneal epithelial wound healing in mice. Methods The central corneal epithelium of wild-type (WT), MALAT1 knockout (M-KO), NEAT1 knockout (N-KO), and NEAT1 knockdown (N-KD) mice was scraped to evaluate corneal epithelial and nerve regeneration rates. RNA sequencing of the corneal epithelium from WT and N-KO mice was performed 24 hours after debridement to determine the role of NEAT1. Quantitative PCR (qPCR) and ELISA were used to confirm the bioinformatic analysis. The effects of the cAMP signaling pathway were evaluated in N-KO and N-KD mice using SQ22536, an adenylate cyclase inhibitor. Results Central corneal epithelial debridement in N-KO mice significantly promoted epithelial and nerve regeneration rates while suppressing inflammatory cell infiltration. Furthermore, the expression of Atp1a2, Ppp1r1b, Calm4, and Cngb1, which are key components of the cAMP signaling pathway, was upregulated in N-KO mice, indicative of its activation. Furthermore, the cAMP pathway inhibitor SQ22536 reversed the accelerated corneal epithelial wound healing in both N-KO and N-KD mice. Conclusions NEAT1 deficiency contributes to epithelial repair during corneal wound healing by activating the cAMP signaling pathway, thereby highlighting a potential therapeutic strategy for corneal epithelial diseases.
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Affiliation(s)
- Tian Sang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
| | - Yani Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
| | - Zhiqing Wang
- School of Clinical Medicine, Weifang Medical University, Shandong, China
| | - Di Sun
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
| | - Shengqian Dou
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
| | - Yaoyao Yu
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
| | - Xiaoyun Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
| | - Can Zhao
- Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
- School of Ophthalmology, Shandong First Medical University, Shandong, China
| | - Qun Wang
- State Key Laboratory Cultivation Base, Shandong Provincial Key Laboratory of Ophthalmology, Shandong Eye Institute, Shandong First Medical University & Shandong Academy of Medical Sciences, Shandong, China
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Cao T, Zhang S, Chen Q, Zeng C, Wang L, Jiao S, Chen H, Zhang B, Cai H. Long non-coding RNAs in schizophrenia: Genetic variations, treatment markers and potential targeted signaling pathways. Schizophr Res 2023; 260:12-22. [PMID: 37543007 DOI: 10.1016/j.schres.2023.07.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/19/2023] [Accepted: 07/23/2023] [Indexed: 08/07/2023]
Abstract
Schizophrenia (SZ), a complex and debilitating spectrum of psychiatric disorders, is now mainly attributed to multifactorial etiology that includes genetic and environmental factors. Long non-coding RNAs (lncRNAs) are gaining popularity as a way to better understand the comprehensive mechanisms beneath the clinical manifestation of SZ. Only in recent years has it been elucidated that mammalian genomes encode thousands of lncRNAs. Strikingly, roughly 30-40% of these lncRNAs are extensively expressed in different regions across the brain, which may be closely associated with SZ. The therapeutic and adverse effects of atypical antipsychotic drugs (AAPDs) are partially reflected by their role in the regulation of lncRNAs. This begs the question directly, do any lncRNAs exist as biomarkers for AAPDs treatment? Furthermore, we comprehend a range of mechanistic investigations that have revealed the regulatory roles for lncRNAs both involved in the brain and the periphery of SZ. More crucially, we also combine insights from a variety of signaling pathways to argue that lncRNAs probably play critical roles in SZ via their interactive downstream factors. This review provides a thorough understanding regarding dysregulation of lncRNAs, corresponding genetic alternations, as well as their potential regulatory roles in the pathology of SZ, which might help reveal useful therapeutic targets in SZ.
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Affiliation(s)
- Ting Cao
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - ShuangYang Zhang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qian Chen
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - CuiRong Zeng
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - LiWei Wang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - ShiMeng Jiao
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hui Chen
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, China
| | - BiKui Zhang
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - HuaLin Cai
- Department of Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Clinical Pharmacy, Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Xu X, Hou D, Wang Y, Zhang J, Hei Y, Wang B, Tian S, Zhang Y, Wang F. Knockdown of NF-κB activating protein promotes pancreatic cancer growth and metastasis through mTOR signaling pathway. Mol Biol Rep 2023; 50:7501-7513. [PMID: 37486443 DOI: 10.1007/s11033-023-08665-1] [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: 05/05/2023] [Accepted: 07/03/2023] [Indexed: 07/25/2023]
Abstract
BACKGROUND NF-κB activating protein (NKAP) acts as a transcriptional suppressor in the Notch signaling pathway, It plays a role in hematopoiesis maintenance, immune cell development, maturation, and functional competency acquisition. NKAP has been found to act as an oncogene in many tumors, but it has not been reported in PAAD.The purpose of this study was to investigate the effect of NKAP on the growth and metastasis of pancreatic adenocarcinoma(PAAD). METHODS AND RESULTS In this study, western blot and qRT-PCR showed that highly expressed NKAP was found in PAAD cell lines, and small interfering RNA (siRNA) was employed to reduce the expression of NKAP in PAAD cell lines. The results of CCK-8, clony formation, Transwell and flow cytometry showed that knockdown of NKAP significantly inhibited biological function of PAAD cells, and increased cell apoptosis. Study also observed that knockdown of NKAP inhibited the expression levels of apoptosis proteins and cyclin in PAAD cells. In addition, mTOR's degree of phosphorylation and the expression of its downstream target p70S6K can both be activated by NKAP. This effect was also confirmed in salvage experiments performed with Rapamycin(RaPa), an inhibitor of mTOR. At the end of the experiment, It was investigated how NKAP affected the drug sensitivity of gemcitabine used to treat PAAD. The results showed that knocking down NKAP could increase the drug sensitivity of gemcitabine. CONCLUSIONS NKAP as an oncogene regulates the development of PAAD cells. The research found that the mTOR signaling pathway is engaged in the oncogenic role of NKAP in PAAD for the first time.
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Affiliation(s)
- Xiangrong Xu
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Danyang Hou
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Yujie Wang
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Jing Zhang
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Yu Hei
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Bobo Wang
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Shuyue Tian
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China
| | - Yunqing Zhang
- Laboratory of Obstetrics and Gynecology, Affiliated Hospital of Yan'an University, Yan'an, Shaanxi Province, 716000, China
| | - Fenghui Wang
- Medical Research and Experimental Center, Medical College, Yan'an University, Yan'an, 716000, People's Republic of China.
- Yan'an Key Laboratory of Fungal Resources Development and Biological Control, Yan'an, Shaanxi Province, 716000, China.
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Lin Y, Sun Q, Zhang B, Zhao W, Shen C. The regulation of lncRNAs and miRNAs in SARS-CoV-2 infection. Front Cell Dev Biol 2023; 11:1229393. [PMID: 37576600 PMCID: PMC10416254 DOI: 10.3389/fcell.2023.1229393] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/20/2023] [Indexed: 08/15/2023] Open
Abstract
The coronavirus disease 2019 (COVID-19) was a global endemic that continues to cause a large number of severe illnesses and fatalities. There is increasing evidence that non-coding RNAs (ncRNAs) are crucial regulators of viral infection and antiviral immune response and the role of non-coding RNAs in SARS-CoV-2 infection has now become the focus of scholarly inquiry. After SARS-CoV-2 infection, some ncRNAs' expression levels are regulated to indirectly control the expression of antiviral genes and viral gene replication. However, some other ncRNAs are hijacked by SARS-CoV-2 in order to help the virus evade the immune system by suppressing the expression of type I interferon (IFN-1) and controlling cytokine levels. In this review, we summarize the recent findings of long non-coding RNAs (lncRNAs) and microRNAs (miRNAs) among non-coding RNAs in SARS-CoV-2 infection and antiviral response, discuss the potential mechanisms of actions, and prospects for the detection, treatment, prevention and future directions of SARS-CoV-2 infection research.
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Affiliation(s)
| | | | | | - Wei Zhao
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Chenguang Shen
- BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Department of Laboratory Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Yan Q, Hu Q, Li G, Qi Q, Song Z, Shu J, Liang H, Liu H, Hao Z. NEAT1 Regulates Calcium Oxalate Crystal-Induced Renal Tubular Oxidative Injury via miR-130/IRF1. Antioxid Redox Signal 2023; 38:731-746. [PMID: 36242511 DOI: 10.1089/ars.2022.0008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Aims: Calcium oxalate (CaOx) crystal deposition induces damage to the renal tubular epithelium, increases epithelial adhesion, and contributes to CaOx nephrocalcinosis. The long noncoding RNA (lncRNA) nuclear paraspeckle assembly transcript 1 (NEAT1) is thought to be involved in this process. In this study, we aimed to investigate the mechanism by which NEAT1 regulates renal tubular epithelium in response to inflammatory and oxidative injury triggered by CaOx crystals. Results: As CaOx crystals were deposited in mouse kidney tissue, the expression of NEAT1 was significantly elevated and positively correlated with interferon regulatory factor 1 (IRF1), Toll-like receptor 4 (TLR4), and NF-κB. NEAT1 targets and inhibits miR-130a-3p as a competitor to endogenous RNA. miR-130 binds to and exerts inhibitory effects on the 3'-untranslated region of IRF1. After transfected with silence-NEAT1, IRF1, TLR4, and NF-κB were also variously inhibited, and oxidative damage in renal calcinosis was subsequently attenuated. When we simultaneously inhibited NEAT1 and miR-130, renal tubular injury was exacerbated. Innovation and Conclusion: We found that the lncRNA NEAT1 can enhance IRF1 signaling through targeted repression of miR-130a-3p and activate TLR4/NF-κB pathways to promote oxidative damage during CaOx crystal deposition. This provides an explanation for the tubular epithelial damage caused by CaOx crystals and offers new ideas and drug targets for the prevention and treatment of CaOx nephrocalcinosis.
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Affiliation(s)
- Qunsheng Yan
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Qingqing Hu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Guoxiang Li
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Qiao Qi
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Ziyan Song
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Jie Shu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Hu Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
| | - Haoran Liu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China.,Department of Urology, Stanford University School of Medicine, Stanford, California, USA
| | - Zongyao Hao
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Institute of Urology, Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Genitourinary Diseases; Hefei, China
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Impaired Autophagy Causes Severe Corneal Neovascularization. Cells 2022; 11:cells11233895. [PMID: 36497153 PMCID: PMC9737787 DOI: 10.3390/cells11233895] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/23/2022] [Accepted: 11/30/2022] [Indexed: 12/05/2022] Open
Abstract
PURPOSE To investigate the role of macrophage autophagy in the process of corneal neovascularization (CNV). METHODS In vivo, mice CNV was induced by alkali injury and compared with rapamycin-treated alkaline burn mice. Western blot was used to determine the autophagic status of the macrophages. We quantified the levels of macrophage polarization markers (CD86, INOS, CD163, CD206) by RT-qPCR and measured inflammatory factors through ELISA (IL-6 and TNF-α) in the early phase after injury. In vitro, the human umbilical vein endothelial cells (HUVECs) were co-cultured with macrophage-conditioned medium (MCM) induced by the THP-1 cell line to simulate the neovascular microenvironment. The vascularization capacity of HUVECs was examined using the CCK-8 assay kit, tube formation assay, and scratch wound-healing assay. RESULTS In vivo, the mRNA expression of Beclin-1 and ATG5 was increased, together with the upregulation of M1 macrophage markers (CD86 and INOS) in corneas after early alkali injury. The area of CNV is effectively relieved in the rapamycin-treated mice. In vitro, upregulation of autophagy level by pretreatment with 3-methyladenine (3-MA) could increase the mRNA expression of the M1 markers. Macrophage-conditioned medium with impaired autophagy contains more IL-6 and TNF-α compared to the M1 macrophage-conditioned medium, promoting HUVEC proliferation, migration, and tube formation capacity. Enhancing the autophagy level with rapamycin (RAPA) could reverse this phenomenon. CONCLUSIONS Impaired autophagy promoted macrophage polarization toward M1 type and increased the expression of IL-6 and TNF-α, which led to severe CNV. Using the autophagy activator (RAPA) could effectively alleviate CNV by promoting autophagy.
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Chen L, Chen Y, Huang J, Zhang J. LncRNA LINC00707 serves as a sponge of miR-382-5p to alleviate lipopolysaccharide (LPS)-induced WI-38 cell injury through upregulating NKAP in infantile pneumonia. Autoimmunity 2022; 55:328-338. [PMID: 35593504 DOI: 10.1080/08916934.2022.2062594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Infantile pneumonia (IP) is an acute lower respiratory infection that imposes a heavy burden on children's health. Increasing evidence has demonstrated that long non-coding RNA (lncRNA) LINC00707 participates in the regulation of the pneumonia process. Cell proliferative ability and apoptosis were measured using Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), and flow cytometry assays. Bcl-2 related X protein (Bax), NF-kB activating protein (NKAP), p-P65, P65, p-IκBα, and IκBα protein levels were detected using western blot assay. The binding between miR-382-5p and LINC00707 or NKAP was predicted by starBase v2.0 and then verified by a dual-luciferase reporter and RNA Immunoprecipitation (RIP) assays. LINC00707 and NKAP levels were increased, and miR-382-5p was decreased in LPS-stimulated WI-38 cells. Furthermore, the silencing of LINC00707 could abrogate LPS-engendered WI-38 cell proliferation, apoptosis, and oxidative stress. LINC00707 deficiency could relieve LPS-triggered WI-38 cell damage by regulating the miR-382-5p/NKAP axis, providing a new therapeutic strategy for IP treatment.
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Affiliation(s)
- Lu Chen
- Department of Respiratory medicine, Hunnan Children's Hospital, Changsha, China
| | - Yanping Chen
- Department of Respiratory medicine, Hunnan Children's Hospital, Changsha, China
| | - Jianbao Huang
- Department of Respiratory medicine, Hunnan Children's Hospital, Changsha, China
| | - Jiyan Zhang
- Department of Respiratory medicine, Hunnan Children's Hospital, Changsha, China
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Downregulation of CRTC1 Is Involved in CUMS-Induced Depression-Like Behavior in the Hippocampus and Its RNA Sequencing Analysis. Mol Neurobiol 2022; 59:4405-4418. [PMID: 35556215 DOI: 10.1007/s12035-022-02787-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/26/2022] [Indexed: 10/18/2022]
Abstract
Chronic stress is an important risk factor for mood disorders including depression. The decreased level of CREB (cAMP-responsive element binding)-regulated transcription coactivator 1 (CRTC1) expression in hippocampus may be involved in depression-like behavior in some stress-induced depression models. But the mechanism of CRTC1 in mediating depression-like behavior remains unknown. In this study, chronic unpredictable mild stress (CUMS)-treated mice showed depression-like behavior accompanied by the downregulation of CRTC1 in the hippocampus. Adeno-associated virus (AAV)-CRTC1-mediated overexpression of CRTC1 in the hippocampus by stereotactic brain injection could significantly prevent depression-like behavior in CUMS-treated mice. The above data reveal that the downregulation of hippocampal CRTC1 expression participates in CUMS-induced depression-like behavior. In order to explore the key targets regulated by CRTC1, AAV-mediated CRTC1 short hairpin (shRNA) was constructed to achieve knockdown of CRTC1 in the hippocampus, and then the hippocampi were collected for RNA-sequencing (RNA-seq). The RNA-seq data show that upregulated genes were enriched in stress and immune system-associated GO terms and pathways such as response to stress and external stimulus and regulation of immune response and that downregulated genes were enriched in neural activity such as synaptic transmission and cognitive behavior. We further provided RT-qPCR data that the inflammation-related factors including Gpr84, Tlr2, Lyz2, and Icam1 were significantly upregulated in the hippocampus of both CUMS- and CRTC1 shRNA-induced models, some of them were also validated in protein levels by Western blotting. We propose a hypothesis that CUMS induces downregulation of CRTC1, which might lead to depression-like behavior via neuroinflammation pathway. This study provides new explanation for the inflammatory hypothesis of depression and some clues for exploring the molecular mechanism of CRTC1 regulation.
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Yuan D, Zhu D, Yin B, Ge H, Zhao Y, Huang A, Wang X, Cao X, Xia N, Qian H. Expression of lncRNA NEAT1 in endometriosis and its biological functions in ectopic endometrial cells as mediated via miR-124-3p. Genes Genomics 2022; 44:527-537. [PMID: 35094286 DOI: 10.1007/s13258-021-01184-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/27/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Endometriosis (EM) is a gynecological disease that poses severe health risks to women, although its pathogenesis has yet to be fully elucidated. It has been shown that long non-coding RNAs (lncRNAs) are closely associated with EM initiation and have a role in the development of this disease. Previous studies exploring the expression of the lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) have shown that this lncRNA functions as a tumor promoter in endometrial cancer. However, its exact mechanism of action in EM remains unclear. OBJECTIVE This report was designed to illustrate the potential molecular mechanisms of lncRNA NEAT1 on EM. METHODS Endometrial tissues were extracted from EM model rats and patients with EM. Hematoxylin and eosin staining was applied to detect the morphological changes that occurred in rats after construction of the model. Endometrial stromal cells (ESCs) were extracted from either ectopic endometrium (EC) or eutopic endometrium (EU) tissues from patients with EM. LncRNA NEAT1 and miR-124-3p expression in EM tissues and cells were subsequently evaluated by reverse transcription-quantitative (RT-q)PCR analysis. MTT assay, flow cytometric analysis, western blot assay and Transwell assay were then employed to examine the effect of NEAT1 and miR-124-3p on EC-ESC proliferation, apoptosis, migration and invasion, respectively. The targeted relationship between lncRNA NEAT1 and miR-124-3p was subsequently confirmed by dual-luciferase and co-transfection assays. RESULTS MiR-124-3p was identified as a target of NEAT1, and could be negatively regulated by NEAT1 in EC-ESCs. The expression level of NEAT1 was evidently increased, whereas that of miR-124-3p was decreased, in the EM in vivo model, EM tissues and EC-ESCs from patients with EM. The loss-of-function assays further established that silencing of NEAT1 could inhibit EC-ESC proliferation, migration, and invasion, but it led to the promotion of apoptosis via targeting miR-124-3p. CONCLUSIONS NEAT1 is significantly upregulated in EM, promoting malignant behavior in EM through targeting miR-124-3p expression.
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Affiliation(s)
- Donglan Yuan
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Dandan Zhu
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Boyu Yin
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Hongshan Ge
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Yinling Zhao
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Aihua Huang
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Xiaosu Wang
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Xiuhong Cao
- Department of Operation, Taizhou People's Hospital Affiliated to Nantong University, Taizhou, 225300, China
| | - Nan Xia
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China
| | - Hua Qian
- Department of Obstetrics and Gynecology, Taizhou People's Hospital Affiliated to Nantong University, 399 Hailing Road, Taizhou, 225300, People's Republic of China.
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11
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Jin SS, Lin CJ, Lin XF, Zheng JZ, Guan HQ. Silencing lncRNA NEAT1 reduces nonalcoholic fatty liver fat deposition by regulating the miR-139-5p/c-Jun/SREBP-1c pathway. Ann Hepatol 2022; 27:100584. [PMID: 34808393 DOI: 10.1016/j.aohep.2021.100584] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 10/08/2021] [Accepted: 10/25/2021] [Indexed: 02/04/2023]
Abstract
INTRODUCTION AND OBJECTIVES Nonalcoholic fatty liver disease (NAFLD) starts with the abnormal accumulation of lipids in the liver. Long noncoding RNA (lncRNA) nuclear enriched abundant transcript 1 (NEAT1) was reported to modulate hepatic metabolic homeostasis in NAFLD. However, little is known about the molecular mechanisms of NAFLD. MATERIALS AND METHODS To establish a NAFLD cellular model, HepG2 cells and LO2 cells were treated with 1 mM free fatty acids (FFAs) for 24 h. NEAT1, miRNA (miR)-139-5p, c-Jun and sterol-regulatory element binding protein-1c (SREBP-1c) were evaluated using qPCR. The protein levels of c-Jun, SREBP1c, acetyl-CoA carboxylase (ACC) and fatty acid synthetase (FAS) were determined using western blotting. Moreover, Oil Red O staining was employed to assess lipid accumulation. In addition, a kit assay was performed to evaluate TG levels. Finally, the interactions among NEAT1, miR-139-5p, c-Jun and SREBP1c were identified by dual luciferase reporter gene assay. RESULTS NEAT1, c-Jun and SREBP1c expression was markedly elevated, while miR-139-5p expression was reduced in the NAFLD cellular model. NEAT1 knockdown restrained lipid accumulation in the NAFLD cellular model by directly targeting miR-139-5p. Moreover, miR-139-5p overexpression suppressed lipid accumulation by directly suppressing c-Jun expression. In addition, c-Jun silencing suppressed lipid accumulation by directly targeting SREBP1c. Finally, miR-139-5p inhibition mitigated the inhibitory effect of sh-NEAT1 on lipid accumulation. CONCLUSION NEAT1 aggravated FFA-induced lipid accumulation in hepatocytes by regulating the c-Jun/SREBP1c axis by sponging miR-139-5p, indicating the potential of NEAT1 as a promising therapeutic target for NAFLD.
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Affiliation(s)
- Si-Si Jin
- Department of Internal Medicine, the First Affiliated Hospital of Wenzhou Medical University, No. 192 Nanbaixiang Street, Wenzhou, Zhejiang 325000, China
| | - Chun-Jing Lin
- Department of Internal Medicine, the First Affiliated Hospital of Wenzhou Medical University, No. 192 Nanbaixiang Street, Wenzhou, Zhejiang 325000, China
| | - Xian-Fan Lin
- Department of Internal Medicine, the First Affiliated Hospital of Wenzhou Medical University, No. 192 Nanbaixiang Street, Wenzhou, Zhejiang 325000, China
| | - Ju-Zeng Zheng
- Department of Internal Medicine, the First Affiliated Hospital of Wenzhou Medical University, No. 192 Nanbaixiang Street, Wenzhou, Zhejiang 325000, China
| | - Hua-Qin Guan
- Department of Internal Medicine, the First Affiliated Hospital of Wenzhou Medical University, No. 192 Nanbaixiang Street, Wenzhou, Zhejiang 325000, China.
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12
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Zhang L, Gao J, Gong A, Dong Y, Hao X, Wang X, Zheng J, Ma W, Song Y, Zhang J, Xu W. The Long Noncoding RNA LINC00963 Inhibits Corneal Fibrosis Scar Formation by Targeting miR-143-3p. DNA Cell Biol 2022; 41:400-409. [PMID: 35262384 PMCID: PMC9063159 DOI: 10.1089/dna.2021.1034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Corneal fibrosis is a complication of severe corneal injury, one of the major causes of vision loss. The formation of myofibroblasts has emerged as a key stimulative factor of corneal fibrosis. In the current study, we focused on the role of LINC00963 in regulating corneal fibrosis. Transforming growth factor β1 (TGF-β1) was used to induce human corneal stromal cells differentiating into corneal myofibroblasts, and the significant increase of α-smooth muscle actin (α-SMA) was verified by quantitative real-time PCR (qRT-PCR), western blot, and immunofluorescence, respectively. LINC00963 was identified to be one-half decreased compared with nonstimulated human corneal stromal cells, indicating that it might play a role in corneal fibrosis. Interestingly, overexpression of LINC00963 resulted in decreased formation of myofibroblasts indicating that it might exhibit an inhibiting effect. Moreover, bioinformatics tool was applied to predict the downstream target of LINC00963. We investigated that LINC00963 suppressed α-SMA induced by TGF-β1 in corneal fibroblasts, at least in part, by downregulating the expression of miR-143-3p. In addition, either LINC00963 promotion or miR-143-3p inhibition could significantly decrease myofibroblast contractility and collagen I and III secretion, which are the key to contribute to corneal fibrosis. Taken together, our study identified LINC00963 as a promising therapeutic target.
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Affiliation(s)
- Lixia Zhang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China.,Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jinning Gao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Anjing Gong
- Department of Neurosurgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yanhan Dong
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Xiaodan Hao
- Center for Molecular Genetics, Institute for Translational Medicine, Qingdao University, Qingdao, China
| | - Xuekang Wang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China.,Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jian Zheng
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Wenmeng Ma
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Yiying Song
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Jie Zhang
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
| | - Wenhua Xu
- Department of Inspection, The Medical Faculty of Qingdao University, Qingdao, China
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13
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Song F, Chen Z, Lyu D, Gu Y, Lu B, Hao S, Xu Y, Jin X, Fu Q, Yao K. Expression profiles of long noncoding RNAs in human corneal epithelial cells exposed to fine particulate matter. CHEMOSPHERE 2022; 287:131955. [PMID: 34478962 DOI: 10.1016/j.chemosphere.2021.131955] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/06/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
PURPOSE The aim of this study was to investigate the expression profiles of long noncoding RNAs (lncRNAs) in human corneal epithelial cells (HCECs) exposed to fine particulate matter (PM2.5) and to identify potential biological pathways involved in PM2.5-induced toxicity in HCECs. METHODS Using RNA sequencing (RNA-seq) and hierarchy clustering analysis, lncRNA expression profiles in PM2.5-treated and untreated HCECs were examined. Gene ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis were performed to predict the role of altered lncRNAs in biological processes and pathways. A quantitative real-time reverse transcription polymerase chain reaction (qRT-PCR) assay was conducted to verify the RNA-seq results in HCECs and human corneal epithelial cell sheets. RESULTS In total, 65 lncRNAs were altered in the PM2.5-treated HCECs, including 41 upregulated and 24 downregulated lncRNAs. The results of the qRT-PCR assay were consistent with those of the RNA-seq analysis. The expression of two significantly upregulated lncRNAs was confirmed in human corneal epithelial cell sheets. The GO analysis demonstrated that altered lncRNAs in the PM2.5-treated HCECs were significantly enriched in three domains: cellular component, molecular function, and biological process. The KEGG pathway analysis revealed enriched pathways of lncRNA co-expressed mRNAs, including cancer, RNA transport, and Rap1 signaling. CONCLUSIONS Our results suggest that lncRNAs are involved in the pathogenesis of PM2.5-induced ocular diseases, exerting their effects through biological processes and pathogenic pathways. Among the altered lncRNAs, RP3-406P24.3 and RP11-285E9.5 may play significant roles in PM2.5-induced ocular surface injury.
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Affiliation(s)
- Fan Song
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Zhijian Chen
- Department of Environmental and Occupational Health, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang Province, China
| | - Danni Lyu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Yuzhou Gu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Bing Lu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Shengjie Hao
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Yili Xu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Xiuming Jin
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China
| | - Qiuli Fu
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China.
| | - Ke Yao
- Eye Center of the 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou, Zhejiang Province, China.
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Knockdown of LncRNA SNHG1 Suppresses Corneal Angiogenesis by the Regulation of miR-195-5p/VEGF-A. J Ophthalmol 2021; 2021:6646512. [PMID: 34712495 PMCID: PMC8548121 DOI: 10.1155/2021/6646512] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 08/22/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
LncRNA SNHG1 (SNHG1) has been widely studied as the causative factor of angiogenesis and proliferative agent in gastric, lung, cervical, and hepatocellular carcinomas. However, its significance of angiogenesis and progression of corneal neovascularization (CRNV) is least understood. This study focuses on the molecular mechanisms followed by SNHG1 to establish CRNV and its angiogenesis. Bioinformatics analysis to identify potential miRNA targets of SNHG1 and vascular endothelial growth factor A (VEGF-A) was conducted using StarBase and was subsequently confirmed by the luciferase reporter assay. Relative quantitative expression of SNHG1 in human umbilical vein endothelial cells (HUVECs) was detected through qRT-PCR and western blot analysis. Cell proliferation was detected through CCK-8 assay, whereas migratory abilities of the cells were determined with transwell assay. A capillary-like tube formation assay was performed to detect the tube formation ability of the cells. Following this, relative expression of miR-195-5p and VEGF-A was determined through qRT-PCR and western blot analysis. Results from the experiments manifested upregulated levels of SNHG1 and VEGF-A in HUVECs and CRNV tissues as compared with the control group, whereas downregulated levels of miR-195-5p were measured in the CRNV tissues and HUVECs, suggesting the negative correlation between lncRNA and miRNA. Overexpressed vascular endothelial growth factor promoted cell proliferation and tube formation; however, its silencing leads to inhibition in angiogenesis and proliferation. Potential binding sites of SNHG1 showed miR-195-5p as its direct target and SNHG1 as a sponge for this miRNA. Knockdown and downregulated levels of SNHG1 showed a notable decrease and inhibition in angiogenesis and migration of CRNV cells. The study showed that SNHG1 inhibition significantly reduced cell proliferation, migration, and tube formation in HUVECs transfect with lncRNA SNHG1. Mechanistic insights into the SNHG1 showed that SNHG1 acts as a sponge for miR-195-5p and upregulates the levels of VEGF-A.
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15
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Wang T, Cai W, Wu Q, Chen D, Wang P, Xu Z. Exosomal lncRNA Nuclear Paraspeckle Assembly Transcript 1 (NEAT1)contributes to the progression of allergic rhinitis via modulating microRNA-511/Nuclear Receptor Subfamily 4 Group A Member 2 (NR4A2) axis. Bioengineered 2021; 12:8067-8079. [PMID: 34672863 PMCID: PMC8806616 DOI: 10.1080/21655979.2021.1982313] [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: 11/25/2022] Open
Abstract
Allergic rhinitis (AR) is a common chronic disease characterized by inflammation of the nasal mucosa. Long non-coding RNA (LncRNA) has been reported to be involved in the pathogenesis of various diseases. However, the biological roles of lncRNA Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) in AR are still unclear. The mRNA levels of NEAT1, miR-511, and Nuclear Receptor Subfamily 4 Group A Member 2 (NR4A2) were detected by RT-qPCR. The protein levels of exosomal markers were examined by western blot. ELISA was used to assess the levels of GM-CSF, eotaxin-1, and MUC5AC. The cell viability and apoptosis were evaluated by CCK-8 and TUNEL assays. In this study, we found that the NEAT1 level was highly expressed in AR and IL-13-treated HNECs. NEAT1 interference significantly suppressed levels of GM-CSF, eotaxin-1, and MUC5AC and apoptosis rate, but promoted the viability of IL-13-treated human nasal epithelial cells (HNECs). Moreover, exosomes containing NEAT1 induced inflammatory cytokine production and apoptosis, while NEAT1 depletion abrogated these effects. In addition, NEAT1 directly interacted with miR-511, and the inhibition of miR-511 partially restored the inhibitory effects of NEAT1 silencing on inflammatory cytokine, mucus production, and apoptosis in IL-13-stimulated HNECs. Furthermore, miR-511 could bind to the 3ʹUTR of NR4A2, and the inhibition of miR-511 increased levels of inflammatory factors and apoptosis rate, which was counteracted by depleting NR4A2. In conclusion, our data revealed that exosomal NEAT1 contributed to the pathogenesis of AR through the miR-511/NR4A2 axis. These findings might offer novel strategies for the prevention and treatment of AR.
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Affiliation(s)
- Tao Wang
- Department of Otolaryngology Head & Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Weiyu Cai
- Department of Otolaryngology Head & Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qinwei Wu
- Department of Otolaryngology Head & Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Dong Chen
- Department of Otolaryngology Head & Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Peihua Wang
- Department of Otolaryngology Head & Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Zhou Xu
- Department of Otolaryngology Head & Neck Surgery, Shanghai Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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16
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Identification of a lncRNA/circRNA-miRNA-mRNA network to explore the effects of ricin toxin-induced inflammation in RAW264.7 cells. Toxicon 2021; 203:129-138. [PMID: 34673083 DOI: 10.1016/j.toxicon.2021.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/13/2021] [Accepted: 10/13/2021] [Indexed: 11/22/2022]
Abstract
Ricin toxin (RT) is a ribosome-inactivating protein derived from the beans of the castor oil plant. Our previous studies have reported that RT can induce the production of inflammatory cytokines and cause inflammatory injury in RAW264.7 cells. In order to explore the various biological processes that long noncoding RNA (lncRNA), circular RNA (circRNA) and micro RNA (miRNA) as endogenous non-coding RNAs (ceRNAs) may participate in the pro-inflammatory mechanism, RT (20 ng/mL) treated and normal RAW264.7 cells were firstly sequenced by RNA-seq. By comparing the differentially expressed genes, we obtained 10 hub genes and enriched the inflammatory-related signaling pathways. Based on our results, we concluded a lncRNA/circRNA-miRNA-mRNA network. Finally, we verified the key genes and pathways by qRT-PCR, WB and ELISA. From the experiment results, an opening MAPK signaling pathway in TNF signaling pathway via TNFR2 was found involved in RT-induced inflammation. This work provides a reference for searching for ceRNA targets or therapeutic drugs in RT-induced inflammatory injury in the future.
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17
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Hu MJ, Long M, Dai RJ. Acetylation of H3K27 activated lncRNA NEAT1 and promoted hepatic lipid accumulation in non-alcoholic fatty liver disease via regulating miR-212-5p/GRIA3. Mol Cell Biochem 2021; 477:191-203. [PMID: 34652536 PMCID: PMC8517567 DOI: 10.1007/s11010-021-04269-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 09/29/2021] [Indexed: 12/30/2022]
Abstract
Non-alcoholic fatty liver disease (NAFLD) was a world-wide health burden. H3K27 acetylation, long non-coding RNA (lncRNA), and miRNA were all implicated in NAFLD regulation, yet the detailed regulatory mechanism was not well understood. LncRNA NEAT1, miR-212-5p, and GRIA3 expression were detected both in high fatty acid-treated hepatocytes cells and NAFLD patients. Lipid droplets were stained and analyzed by oil red O staining. Expression of fatty acid synthase (FASN), acetyl-CoA carboxylase (ACC), and GRIA3 was detected by qRT-PCR and western blot. RNA level of lncRNA NEAT1 and miR-212-5p was analyzed by qRT-PCR. The binding sequences of lncRNA NEAT1/miR-212-5p and miR-212-5p/GRIA3 were predicted bioinformatically and validated through luciferase assay. ChIP was performed to analyze H3K27 acetylation on the promoter of lncRNA NEAT1. LncRNA NEAT1 and GRIA3 was upregulated, while miR-212-5p was downregulated in NAFLD patients. FFA promoted lncRNA NEAT1 and GRIA3 expression while suppressing miR-212-5p and promoted lipid accumulation as indicated by increased oil red O staining and FAS and ACC expression. ChIP indicated enrichment of H3K27 on NEAT1 promoter. Inhibition of H3K27 acetylation suppressed lncRNA NEAT1 level. Luciferase results indicated direct interaction of NEAT1/miR-212-5p (which was confirmed by RIP) and miR-212-5p/GRIA3. LncRNA NEAT1 knockdown upregulated miR-212-5p level and inhibited FFA-induced lipid accumulation while suppressing GRIA3 expression. Such function was antagonized by miR-212-5p inhibition and GRIA3 knockdown counteracted with miR-212-5p inhibition. H3K27 acetylation was enriched within the promoter of lncRNA NEAT1 and promoted lncRNA NEAT1 transcription. LncRNA NEAT1 could then interact with miR-212-5p and suppress its cellular concentration.
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Affiliation(s)
- Min-Jie Hu
- Department of Cardiothoracic Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421000, Hunan Province, People's Republic of China
| | - Mei Long
- Department of Rheumatology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, 421000, Hunan Province, People's Republic of China
| | - Rong-Juan Dai
- Department of Infectious Diseases, The First Affiliated Hospital, Hengyang Medical School, University of South China, No.69, Chuanshan Road, Shigu District, Hengyang, 421000, Hunan Province, People's Republic of China.
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Knockdown of lncRNA TUG1 suppresses corneal angiogenesis through regulating miR-505-3p/VEGFA. Microvasc Res 2021; 138:104233. [PMID: 34411571 DOI: 10.1016/j.mvr.2021.104233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 07/14/2021] [Accepted: 08/12/2021] [Indexed: 12/28/2022]
Abstract
OBJECTIVES Vascular endothelial growth factor A (VEGFA) is one of the major factors initiating and regulating angiogenesis. LncRNA taurine up-regulated gene 1 (TUG1) has been implicated in the pathological neovascularization. The aim of this study is to explore the function of TUG1 in regulating VEGFA-mediated angiogenesis in endothelial cells. METHODS A total of 12 corneal neovascularization (CRNV) samples were collected form patient undergoing corneal transplantation at Tongji Hospital, Wuhan, China. qRT-PCR and Western blotting were performed to examine gene expression and protein levels. Human umbilical vein endothelial cells (HUVECs) were used as an in vitro angiogenesis model. CCK-8 proliferation assay was used to determine cell proliferation capacity and wound healing was performed to analyze cell migration ability. Dual luciferase reporter assay was used for functional interaction validation between miR-505-3p and its targets. The in vitro angiogenic potential was evaluated by tube formation assay. RESULTS TUG1 and VEGFA were upregulated in CRNV tissues and VEGFA-treated HUVECs. TUG1 knockdown inhibited proliferation, migration and tube formation capacity of HUVECs. TUG1 regulated the angiogenesis of HUVECs by modulating VEGFA expression through targeting miR-505-3p. CONCLUSIONS Our results suggest that lncRNA TUG1 promotes the angiogenesis of HUVECs through modulating miR-505-3p/VEGFA axis.
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Liu B, Ren H, Chen J. LncRNA NEAT1 correlates with Th1 and Th17 and could serve as an assistant biomarker in sepsis. Biomark Med 2021; 15:1177-1186. [PMID: 34406030 DOI: 10.2217/bmm-2020-0906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: Investigating correlation of lncRNA NEAT1 with Th1 and Th17 in sepsis, and their associations with inflammation, disease severity and prognosis. Materials & methods: A total of 127 sepsis patients and 50 health subjects were included. LncRNA NEAT1, Th1, Th17 and Th1/Th17-secreted cytokines were detected. Results: LncRNA NEAT1 positively correlated with Th1 and Th17 cell proportions in sepsis patients. LncRNA NEAT1 positively correlated with Th1 and Th17-secreted cytokine levels in sepsis patients. LncRNA NEAT1 and Th17 cell proportion positively correlated with CRP level, acute physiology and chronic health evaluation II score and sequential organ failure assessment score. High lncRNA NEAT1 expression, Th1 and Th17 cell proportions correlated with elevated accumulating mortality. Conclusion: LncRNA NEAT1 positively correlated with Th1 and Th17, and may serve as an assistant biomarker in sepsis patients.
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Affiliation(s)
- Bo Liu
- Department of Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, 430000, China
| | - Haibo Ren
- Department of Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, 430000, China
| | - Jing Chen
- Department of Critical Care Medicine, Wuhan Asia General Hospital, Wuhan, 430000, China
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20
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Wu Y, Gui Y, Wu D, Wu Q. Construction and Analysis of mRNA and lncRNA Regulatory Networks Reveal the Key Genes Associated with Prostate Cancer Related Fatigue During Localized Radiation Therapy. Curr Bioinform 2021. [DOI: 10.2174/1574893615999200901105208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Localized radiation therapy is the first-line option for the treatment of nonmetastatic
prostate cancer (PCa). Previous studies revealed that long non-coding RNAs (lncRNAs) had
crucial roles in disease progression. However, the mechanisms of lncRNAs underlying prostate cancerrelated
fatigue remained largely unclear.
Objective:
The present study aimed to uncover the key genes related to PCa related fatigue during localized
radiation therapy by constructing mRNA and lncRNA regulatory networks.
Methods:
We analyzed GSE30174, which included 10 control samples and 40 PCa related fatigue
samples, to identify differently expressed lncRNAs and mRNAs in PCa related fatigue. A proteinprotein
interaction network was constructed to reveal the interactions among mRNAs. Co-expression
network analysis was applied to identify the key lncRNAs and reveal the functions of these lncRNAs in
PCa related fatigue.
Results and Discussion:
This research found 1271 dysregulated mRNAs and 205 dysregulated
lncRNAs in PCa related fatigue using GSE30174. Bioinformatics analysis showed that PCa related fatigue
with mRNAs and lncRNAs were associated with inflammatory response and immune response
related biological processes. Furthermore, we constructed a PPI network and lncRNA co-expression
network related to fatigue in PCa. Of note, we observed that the dysregulated lncRNAs and mRNAs,
such as SEC61A2, ADCY6, LPAR5, COL7A1, ALB, COL1A1, SNHG1, LINC01215, LINC00926,
GNG4, LMO7, and COL4A6, in PCa related fatigue could predict the outcome of PCa patients.
Conclusions:
This research could provide novel mechanisms underlying fatigue and identify new biomarkers
for the prognosis of PCa.
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Affiliation(s)
- Yechen Wu
- Department of Urology, Baoshan Branch, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201900, China
| | - Yaping Gui
- Department of Urology, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Denglong Wu
- Department of Urology, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
| | - Qiang Wu
- Department of Urology, Tongji Hospital, Tongji University School of Medicine, Shanghai, 200065, China
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21
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Jiang L, He W, Tang F, Tang N, Huang G, Huang W, Wu X, Guan J, Zeng S, Li M, Chen Q, Zhang M, Zhong H, Lan Q, Cui L, Li L, Xu F. Epigenetic Landscape Analysis of the Long Non-Coding RNA and Messenger RNA in a Mouse Model of Corneal Alkali Burns. Invest Ophthalmol Vis Sci 2021; 62:28. [PMID: 33891681 PMCID: PMC8083103 DOI: 10.1167/iovs.62.4.28] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Purpose Corneal alkali burns (CABs) are a common clinical ocular disease, presenting a poor prognosis. Although some long noncoding RNAs (lncRNAs) reportedly play a key role in epigenetic regulation associated with CABs, studies regarding the lncRNA signature in CABs remain rare and elusive. Methods A CAB model was established in C57BL/6J mice and profiling of lncRNA expressions was performed by RNA-Seq. Gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses were conducted to predicate the related pathological pathways and candidate genes. RT-qPCR was used to verify the expression pattern of lncRNAs and related mRNAs, both in vitro and in vivo. Data were statistically analyzed by GraphPad Prism version 6.0. Results In all, 4436 aberrantly expressed lncRNAs were identified in CAB mice when compared with control mice. In the top 13 aberrantly expressed lncRNAs, Bc037156 and 4930511E03Rik were confirmed as the most significantly altered lncRNAs. Pathway analysis revealed that mitogen-activated protein kinase (MAPK) signaling pathway was most enriched. Following 4930511E03Rik siRNA treated, Srgn, IL-1β and Cxcr2 were significant upregulated in corneal epithelial cells, corneal keratocytes, and bone marrow dendritic cells, with NaOH treatment. Moreover, after Bc037156 siRNA treated, expression levels of IL-1β and Srgn were significantly downregulated in the three cell lines. Conclusions Our study suggests that Bc037156 and 4930511E03Rik may be involved in inflammation, immune response, and neovascularization by regulating Srgn, IL-1β, and Cxcr2 expression after CAB. These candidate lncRNAs and mRNAs may be the potential targets for the treatment strategy of the alkali injured cornea.
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Affiliation(s)
- Li Jiang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Wenjing He
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Fen Tang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Ningning Tang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Guangyi Huang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Wei Huang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Xiaonian Wu
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Jianpei Guan
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Siming Zeng
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Min Li
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Qi Chen
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Mingyuan Zhang
- Laboratory Animal Center, Guangxi Medical University, Nanning, China
| | - Haibin Zhong
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Qianqian Lan
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Ling Cui
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Lili Li
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
| | - Fan Xu
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, People's Republic of China
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22
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Liu J, Qu X. The roles of long non-coding RNAs in ocular diseases. Exp Eye Res 2021; 207:108561. [PMID: 33812869 DOI: 10.1016/j.exer.2021.108561] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 03/11/2021] [Accepted: 03/25/2021] [Indexed: 11/19/2022]
Abstract
In recent years, lncRNAs have been shown to regulate gene expression at the epigenetic, transcriptional and translational level, thus exerting various functions in biological and pathological processes involving cell proliferation, apoptosis, cell cycle and immune response. An increasing number of researches have unveiled that lncRNAs are dysregulated in pathogenesis and the development of different ocular diseases, such as glaucoma, cataract, retinal disease and ocular tumors. Also, it has been reported that lncRNAs may exert significant roles in various ocular diseases. Here, we summarized the functions of lncRNAs on relevant ocular diseases and further clarified their mechanisms. Here, several previous studies with detailed information of lncRNAs which have been proved to be the diagnostic or prognostic biomarkers and potential therapeutic targets were included. Also, it is our hope to provide a thorough knowledge of the functions of lncRNAs in eye diseases and the methods by which lncRNAs can influence ocular diseases.
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Affiliation(s)
- Jinlu Liu
- Department of Ophthalmology, The Fourth Affiliated Hospital of China Medical University, No.4, Chongshan East Road, Huanggu District, Shenyang, 110032, Liaoning, China
| | - Xiaohan Qu
- Department of Thoracic Surgery, The First Hospital of China Medical University, No.155, Nanjing North Street, Heping District, Shenyang, 110001, Liaoning, China.
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Ma W, Zhao X, Xue N, Gao Y, Xu Q. The LINC01410/miR-122-5p/NDRG3 axis is involved in the proliferation and migration of osteosarcoma cells. IUBMB Life 2021; 73:705-717. [PMID: 33583123 DOI: 10.1002/iub.2452] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 12/29/2020] [Accepted: 12/31/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE It is generally accepted that long noncoding RNAs (lncRNAs) function as vital regulators of tumor development and progression. Long intergenic non-coding RNA 1410 (LINC01410) is a newly discovered lncRNA, and its role in osteosarcoma (OS) is yet to be determined. MATERIALS AND METHODS The expression of LINC01410, microRNA-122-5p (miR-122-5p), and N-myc downstream-regulated gene 3 (NDRG3) in OS tissues was determined using reverse transcription-quantitative PCR. Interactions between LINC01410, miR-122-5p, and NDRG3 were predicted and verified using bioinformatics tools and luciferase assays. Cell proliferation, migration, and invasion were detected using cell counting Kit-8 and Transwell assays. RESULTS LINC01410 was overexpressed in OS tissues. Furthermore, it was confirmed that LINC01410 facilitated OS cell proliferation and migration. Our studies also showed that LINC01410 binds to miR-122-5p, and miR-122-5p binds to NDRG3. Finally, we observed that LINC01410 knockdown inhibited the proliferation, invasion, and migration of OS cells. Knockdown of LINC01410 resulted in the upregulation of miR-122-5p and downregulation of NDRG3. CONCLUSION Our results demonstrated that the LINC01410/miR-122-5p/NDRG3 axis is involved in the progression of OS.
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Affiliation(s)
- Weiguo Ma
- Department of Clinical Laboratory, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Xin Zhao
- Department of Clinical Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ning Xue
- Department of Clinical Laboratory, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Yun Gao
- Department of Clinical Laboratory, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Qingxia Xu
- Department of Clinical Laboratory, the Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
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Ji X, Yan Y, Ma N, He G, Wang K, Zhang Y, Yin J, Song C, Wang P, Ye H, Dai L, Zhang J, Wang K. Variant of SNPs at lncRNA NEAT1 contributes to gastric cancer susceptibility in Chinese Han population. Int J Clin Oncol 2021; 26:694-700. [PMID: 33464437 DOI: 10.1007/s10147-020-01852-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 11/25/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND The long noncoding RNA (lncRNA) nuclear-enriched abundant transcript 1 (NEAT1) has been implicated in many tumors risk including gastric cancer. However, the association of single nucleotide polymorphisms (SNPs) at NEAT1 with gastric cancer risk has not been studied. The aim of this study was to investigate the association between SNPs in NEAT1 and gastric cancer susceptibility. METHODS In this study, four SNPs in lncRNA NEAT1 were selected for genotyping in 484 gastric cancer patients and 484 controls in Chinese Han population. Quantitative real-time PCR (qRT-PCR) was conducted to evaluate the potential function of rs3825071. Attributable risk percentage (ARP) and population attributable risk percentage (PARP) were used to assess the epidemiological effect. RESULTS In the dominant model (GG), the genotypes AG + AA of rs3825071 and rs7943779 were associated with an increased risk of gastric cancer (OR = 1.72, 95%CI = 1.27-2.32 and OR = 1.63, 95%CI = 1.19-2.22). Individuals harboring ≥ 3 risk alleles have higher risk of gastric cancer (OR = 1.88, 95% CI = 1.26-2.80, P = 0.002). ARP and PARP associated with gastric cancer were 42.53% and 10.88% for rs3825071, and were 33.78% and 6.26% for rs7943779, respectively. Furthermore, compared with the genotype GG of rs3825071, the genotypes AG and AA had higher expression of NEAT1. CONCLUSIONS We found that the genetic variations in NEAT1 were significantly associated with risk of gastric cancer. The G > A variant of rs3825071 may confer gastric cancer susceptibility by changed biological effects to increase the expression of NEAT1.
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Affiliation(s)
- Xuanke Ji
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Yali Yan
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Nan Ma
- Henan Academy of Medical Sciences, Zhengzhou, 450003, Henan Province, China
| | - Gui He
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Kunyan Wang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Yuehua Zhang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Jingjing Yin
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Chunhua Song
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Peng Wang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Hua Ye
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Liping Dai
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Jianying Zhang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China
| | - Kaijuan Wang
- Department of Epidemiology, College of Public Health, Zhengzhou University, No 100 Kexue Avenue, Zhengzhou City, 450001, China.
- Key Laboratory of Tumor Epidemiology of Henan Province, Zhengzhou University, Zhengzhou, China.
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, China.
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Suppression of lncRNA MALAT1 Reduces LPS- or IL-17A-Induced Inflammatory Response in Human Middle Ear Epithelial Cells via the NF- κB Signaling Pathway. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8844119. [PMID: 33506040 PMCID: PMC7808845 DOI: 10.1155/2021/8844119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 11/27/2020] [Accepted: 12/24/2020] [Indexed: 11/17/2022]
Abstract
Otitis media (OM) is a common inflammatory disease of the middle ear cavity and mainly occurs in children. As a critical regulator of inflammation response, the nuclear factor kappa B (NF-κB) pathway has been found to play an essential role in the pathogenesis of various human diseases. The aim of this study was to explore the potential mechanism under the inflammatory response of human middle ear epithelial cells (HMEECs). We established in vitro models of OM by treating HMEECs with lipopolysaccharide (LPS) or interleukin 17A (IL-17A). Enzyme-linked immunosorbent assay and western blot analysis were used to measure the inflammatory response of HMEECs under LPS or IL-17A stimulation. The results revealed that the concentrations of proinflammatory cytokines (p < 0.001) and protein levels of mucin (MUC) (for MUC5AC, p = 0.002, p = 0.004; for MUC8, p = 0.004, p < 0.001) were significantly elevated by LPS or IL-17A stimulation in HMEECs. Moreover, we found that LPS or IL-17A treatment promoted the phosphorylation of IκBα (for p-IκBα, p = 0.018, p = 0.002; for IκBα, p = 0.238, p = 0.057) and the translocation of p65 from cytoplasm to nucleus in HMEECs (for nucleus p65, p = 0.01; for cytoplasm p65, p < 0.001). In addition, RT-qPCR analysis revealed that long noncoding RNA (lncRNA) metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) was verified to be upregulated in LPS- or IL-17A-stimulated HMEECs (p < 0.001). Western blot analysis and immunofluorescence staining assay revealed that that MALAT1 knockdown significantly suppressed the activation of the NF-κB pathway by reducing phosphorylated IκBα levels and inhibiting the nuclear translocation of p65 (p < 0.001) in LPS- or IL-17A-stimulated HMEECs (for p-IκBα, p < 0.001; for IκBα, p = 0.242, p = 0.647). Silence of MALAT1 decreased the proinflammatory cytokine production and MUC protein levels (p < 0.001). Furthermore, rescue assays revealed that the increase of proinflammatory cytokine production (for TNF-α, p = 0.002, p = 0.015; for IL-1β, p < 0.001, p = 0.006; for IL-6, p = 0.002, p < 0.001) and MUC protein levels (for MUC5AC, p = 0.001, p < 0.001; for MUC8, p < 0.001, p = 0.001) induced by MALAT1 overexpression was neutralized by 4-N-[2-(4-phenoxyphenyl) ethyl] quinazoline-4, 6-diamine (QNZ) treatment in LPS- or IL-17A-stimulated HMEECs. In conclusion, MALAT1 promotes inflammatory response in LPS- or IL-17A- stimulated HMEECs via the NF-κB signaling pathway, which may provide a potential novel insight for the treatment of OM.
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Liu M, Li W, Song F, Zhang L, Sun X. Silencing of lncRNA MIAT alleviates LPS-induced pneumonia via regulating miR-147a/NKAP/NF-κB axis. Aging (Albany NY) 2020; 13:2506-2518. [PMID: 33318298 PMCID: PMC7880384 DOI: 10.18632/aging.202284] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/31/2020] [Indexed: 12/11/2022]
Abstract
Purpose: Pneumonia is a respiratory disease with an increasing incidence in recent years. More and more studies have revealed that lncRNAs can regulate the transcriptional expression of target genes at different stage. Herein, we aimed to explore the effect of lncRNA MIAT in LPS-induced pneumonia, and further illuminate the possible underlying mechanisms. Method and results: Mice were intraperitoneally injected with LPS, and the lung inflammation was evaluated. Microarray showed lncRNA MIAT was up-regulated in LPS-induced pulmonary inflammation. And qRT-PCR and FISH assay indicated that MIAT was increased in mice with LPS injection. Functional analysis showed sh-MIAT inhibited LPS-induced inflammation response, inhibited apoptosis level and protected lung function. As well, si-MIAT removed the injury of LPS on mouse lung epithelial TC-1 cells, and inhibited the activation of NF-κB signaling. Furthermore, MIAT acted as a sponge of miR-147a, and miR-147a directly targeted NKAP. Functionally, AMO-147a or NKAP remitted the beneficial effects of si-MIAT on LPS-induced inflammation response of TC-1 cells. Conclusion: Deletion of MIAT protected against LPS-induced lung inflammation via regulating miR-147a/NKAP, which might provide new insight for pneumonia treatment.
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Affiliation(s)
- Min Liu
- Department of Pediatrics, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Weixin Li
- Department of Infectious Diseases, Jinan Hospital of Integrated Traditional Chinese and Western Medicine, Jinan, Shandong Province, China
| | - Fuxing Song
- Department of Pediatrics, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Ling Zhang
- Department of Pediatrics, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
| | - Xianjun Sun
- Department of Pediatrics, Jinan People's Hospital Affiliated to Shandong First Medical University, Jinan, Shandong Province, China
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LncRNA NEAT1 Sponges MiRNA-148a-3p to Suppress Choroidal Neovascularization and M2 macrophage polarization. Mol Immunol 2020; 127:212-222. [PMID: 33011404 DOI: 10.1016/j.molimm.2020.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 08/08/2020] [Accepted: 08/14/2020] [Indexed: 01/03/2023]
Abstract
PURPOSE Long noncoding RNAs (lncRNAs) have emerged as essential regulators in many biological processes; however, little is known about the role of lncRNAs in choroidal neovascularization (CNV). The aim of this study was to investigate the role of lncRNA NEAT1 in CNV formation, and assessed whether inhibition of lncRNA NEAT1 could suppress M2-type macrophage polarization and CNV. METHODS The expression profiles of lncRNAs in a CNV mice model were accessed via microarray analysis. The role of lncRNA NEAT1 on macrophage polarization was assessed both in vitro and vivo. The interaction between lncRNA NEAT1, miR-148a-3p, and PTEN was assessed using a dual-luciferase reporter assay and RNA immunoprecipitation assay. Additionally, to evaluate the role of lncRNA NEAT1 on CNV development, eyes of mice in the mice CNV model were examined by Fluorescein Angiography (FA) and choroidal flatmounts on days 3 and 7 after intravitreal injection. RESULTS The results revealed that 128 lncRNAs were significantly altered in the RPE-choroid-sclera complexes of CNV mice (P < 0.05, fold change > 2.0). Additionally, lncRNA NEAT1 increased in CNV formation and M2 macrophage polarization. LncRNA NEAT1 sponging miRNA-148a-3p targeting PTEN can modulate M2 macrophage polarization in mice CNV models as well as in bone marrow-derived macrophages cultured in vitro. Inhibition of lncRNA NEAT1 can suppress M2 macrophage both in vitro and vivo. Moreover, the intravitreal injection of a lncRNA NEAT1 Smart Silencer can inhibit CNV leakage and neovascularization. CONCLUSION LncRNA NEAT1 via miRNA-148a-3p targeting PTEN plays a significant role in M2 macrophage polarization, while the inhibition of lncRNA NEAT1 can suppress choroidal neovascularization by inhibiting M2 macrophage polarization.
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Li Y, Guo W, Cai Y. NEAT1 Promotes LPS-induced Inflammatory Injury in Macrophages by Regulating MiR-17-5p/TLR4. Open Med (Wars) 2020; 15:38-49. [PMID: 32099901 PMCID: PMC7026743 DOI: 10.1515/med-2020-0007] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/27/2019] [Indexed: 12/11/2022] Open
Abstract
Background The inflammatory response of macrophages is responsible for sepsis. Long noncoding RNA nuclear enriched abundant transcript 1 (NEAT1) has been reported to be involved in sepsis development. However, its underlying mechanism remains largely unclear. This study aims to investigate the effect of NEAT1 on inflammatory response of macrophages and explore the regulatory network of NEAT1/microRNA-17-5p (miR-17-5p)/Toll-like receptor 4 (TLR4). Methods The serum samples of 68 sepsis patients and 32 heathy controls were collected. THP-1 macrophages were treated with lipopolysaccharide (LPS) to induce inflammatory injury model of sepsis. The expressions of NEAT1, miR-17-5p and TLR4 were measured by quantitative real-time polymerase chain reaction or western blot. The inflammatory response was investigated by levels of inflammatory cytokines, tumor necrosis factor-alpha (TNF-ɑ), interleukin-1beta (IL-1β) and IL-6 as well as nitric oxide (NO) production. The interaction among NEAT1, miR-17-5p and TLR4 were investigated by bioinformatics analysis, luciferase reporter assay and RNA pull-down. Results NEAT1 expression was enhanced in patient serum and associated with severity of sepsis. Knockdown of NEAT1 inhibited levels of TNF-ɑ, IL-1β, IL-6 and NO release in LPS-treated macrophages. miR-17-5p is bound to NEAT1 and its abrogation reversed NEAT1 knockdown-mediated inhibition of inflammatory response in LPS-treated macrophages. Overexpression of miR-17-5p weakened LPS-induced inflammatory response. TLR4 as a target of miR-17-5p was regulated by NEAT1 and miR-17-5p. TLR4 res-to ration alleviated silencing NEAT1-induced inflammatory suppression. Conclusion Silence of NEAT1 suppressed LPS-induced inflammatory response of macrophages by mediating miR-17-5p and TLR4, indicating that NEAT1 might be a promising target for sepsis treatment.
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Affiliation(s)
- Yanhui Li
- ChenZhou NO.1 People's Hospital LuoJiaJin, ChenZhou China
| | - Wei Guo
- ICU 1 Zone, ChenZhou NO.1 People's Hospital, ChenZhou, HuNan, 423000, China
| | - Yeping Cai
- ICU 1 Zone, ChenZhou NO.1 People's Hospital, ChenZhou, HuNan, 423000, China
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Targeting of IL-6-Relevant Long Noncoding RNA Profiles in Inflammatory and Tumorous Disease. Inflammation 2020; 42:1139-1146. [PMID: 30825076 DOI: 10.1007/s10753-019-00995-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Interleukin-6 (IL-6) is a critical cytokine with a diverse repertoire of physiological functions. Dysregulation of IL-6 signaling is associated with inflammatory disorders as well as cancers. However, blockade of IL-6 activity via antibodies directed against the IL-6 signaling pathway may compromise the efficacy of the immune system; therefore, patients may not have a uniformly satisfactory response to treatment. Long noncoding RNAs (lncRNAs) have been discovered to be evolutionary conserved transcripts of noncoding DNA sequences and have emerged as biomarkers with great predictive and prognostic value, further employed as a targeted anticancer therapy. LncRNAs have been recently implicated in the regulation of IL-6-related signaling and function; they are tightly linked to the development of a range of IL-6 dysregulated diseases. Here, we will highlight those lncRNAs involved in IL-6 signaling, with an emphasis on the mechanisms of lncRNAs that interact with IL-6. Targeting of such lncRNAs related to IL-6 regulation could be, in the near future, a promising therapeutic strategy in the treatment of inflammatory- and tumor-related diseases.
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Shui X, Chen S, Lin J, Kong J, Zhou C, Wu J. Knockdown of lncRNA NEAT1 inhibits Th17/CD4
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T cell differentiation through reducing the STAT3 protein level. J Cell Physiol 2019; 234:22477-22484. [PMID: 31119756 DOI: 10.1002/jcp.28811] [Citation(s) in RCA: 95] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 12/29/2022]
Affiliation(s)
- Xiaolong Shui
- Department of Orthopedics The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
| | - Shaomin Chen
- Department of Rehabilitation The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
| | - Jinti Lin
- Department of Orthopedics The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
| | - Jianzhong Kong
- Department of Orthopedics The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
| | - Chengwei Zhou
- Department of Orthopedics The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
| | - Jiaozhen Wu
- Department of Orthopedics The Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University Wenzhou China
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Wang L, Yang D, Tian R, Zhang H. NEAT1 promotes retinoblastoma progression via modulating miR-124. J Cell Biochem 2019; 120:15585-15593. [PMID: 31038819 PMCID: PMC6767513 DOI: 10.1002/jcb.28825] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/19/2019] [Accepted: 01/24/2019] [Indexed: 12/20/2022]
Abstract
The long noncoding RNA nuclear-enriched abundant transcript 1 (NEAT1) is reportedly involved in the initiation and progression of cancers of several types. However, the role, expression status, and the detailed mechanism of NEAT1 in retinoblastoma (RB) yet need to be unraveled. We explored the role and the mechanism of NEAT1 activity in RB. Our data show enhanced NEAT1 expression in RB-affected tissues compared with the corresponding control. Functional experiments reveal that a NEAT1 knockdown in RB cells significantly inhibits proliferation, cycle progression, and facilitates apoptosis and caspase-3 and -9 activities. Besides that, miR-124 was predicted to be a target of NEAT1 and its reduced expression, as well as the inverse correlation of NEAT1 with miR-124, was observed in RB-affected tissues. Further, luciferase and RNA immunoprecipitation (RIP) assays confirmed the interaction between NEAT1 and miR-124. Rescue experiments confirmed that the inhibition of miR-124 could reverse the effect of NEAT1 on RB cell proliferation, cycle arrest, apoptosis, and caspase-3 and -9 activities. Thus, NEAT1 promotes RB progression by sponging miR-124, providing a therapeutic target for RB.
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Affiliation(s)
- Lufei Wang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Defeng Yang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Rui Tian
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Hui Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun, Jilin, People's Republic of China
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Zhang L, Dong Y, Wang Y, Gao J, Lv J, Sun J, Li M, Wang M, Zhao Z, Wang J, Xu W. Long non-coding RNAs in ocular diseases: new and potential therapeutic targets. FEBS J 2019; 286:2261-2272. [PMID: 30927500 DOI: 10.1111/febs.14827] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 02/21/2019] [Accepted: 03/28/2019] [Indexed: 12/21/2022]
Abstract
Long non-coding RNAs (lncRNAs) are non-protein coding transcripts containing more than 200 nucleotides. In the past, lncRNAs were considered as 'transcript noise' or 'pseudogenes' and were thus ignored. However, in recent years, lncRNAs have been proven to regulate gene expression at the epigenetic, transcriptional and translational level, and thereby influence cell proliferation, apoptosis, viability, immune response and oxidative stress. Furthermore, increasing evidence points to their involvement in different diseases, including cancer and heart diseases. Recently, lncRNAs were shown to be differentially expressed in ocular tissues and play a significant role in the pathogenesis of ophthalmological disorders such as glaucoma, corneal diseases, cataract, diabetic retinopathy, proliferative vitreoretinopathy and ocular tumors. In this review, we summarize the classification and mechanisms of known lncRNAs, while detailing their biological functions and roles in ocular diseases. Moreover, we provide a concise review of the clinical relevance of lncRNAs as novel, potential therapeutic targets in the treatment of eye diseases.
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Affiliation(s)
- Lixia Zhang
- Department of Inspection, The Medical Faculty of Qingdao University, China
| | - Yanhan Dong
- Institute for Translational Medicine, Qingdao University, China
| | - Yujie Wang
- The Clinical Laboratory of Qingdao Municipal Hospital, China
| | - Jinning Gao
- Institute for Translational Medicine, Qingdao University, China
| | - Jiayi Lv
- Department of Inspection, The Medical Faculty of Qingdao University, China
| | - Jingguo Sun
- Department of Inspection, The Medical Faculty of Qingdao University, China
| | - Mengjie Li
- Department of Inspection, The Medical Faculty of Qingdao University, China
| | - Meng Wang
- Department of Inspection, The Medical Faculty of Qingdao University, China
| | - Zhihong Zhao
- Department of Inspection, The Medical Faculty of Qingdao University, China
| | - Jianxun Wang
- Institute for Translational Medicine, Qingdao University, China
| | - Wenhua Xu
- Department of Inspection, The Medical Faculty of Qingdao University, China
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Silva AM, Moura SR, Teixeira JH, Barbosa MA, Santos SG, Almeida MI. Long noncoding RNAs: a missing link in osteoporosis. Bone Res 2019; 7:10. [PMID: 30937214 PMCID: PMC6437190 DOI: 10.1038/s41413-019-0048-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/19/2019] [Accepted: 02/25/2019] [Indexed: 02/07/2023] Open
Abstract
Osteoporosis is a systemic disease that results in loss of bone density and increased fracture risk, particularly in the vertebrae and the hip. This condition and associated morbidity and mortality increase with population ageing. Long noncoding (lnc) RNAs are transcripts longer than 200 nucleotides that are not translated into proteins, but play important regulatory roles in transcriptional and post-transcriptional regulation. Their contribution to disease onset and development is increasingly recognized. Herein, we present an integrative revision on the studies that implicate lncRNAs in osteoporosis and that support their potential use as therapeutic tools. Firstly, current evidence on lncRNAs involvement in cellular and molecular mechanisms linked to osteoporosis and its major complication, fragility fractures, is reviewed. We analyze evidence of their roles in osteogenesis, osteoclastogenesis, and bone fracture healing events from human and animal model studies. Secondly, the potential of lncRNAs alterations at genetic and transcriptomic level are discussed as osteoporosis risk factors and as new circulating biomarkers for diagnosis. Finally, we conclude debating the possibilities, persisting difficulties, and future prospects of using lncRNAs in the treatment of osteoporosis.
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Affiliation(s)
- Andreia Machado Silva
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
| | - Sara Reis Moura
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
| | - José Henrique Teixeira
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Mário Adolfo Barbosa
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Susana Gomes Santos
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
- ICBAS—Instituto de Ciências Biomédicas Abel Salazar, University of Porto, Porto, Portugal
| | - Maria Inês Almeida
- i3S—Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
- INEB—Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal
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