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Liang X, Zhang C, Shen L, Ding L, Guo H. Role of non‑coding RNAs in UV‑induced radiation effects (Review). Exp Ther Med 2024; 27:262. [PMID: 38756908 PMCID: PMC11097301 DOI: 10.3892/etm.2024.12550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 04/04/2024] [Indexed: 05/18/2024] Open
Abstract
Ultraviolet (UV) is divided into UVA (long-wave, 320-400 nm), UVB (middle-wave, 280-320 nm) and UVC (short-wave, 100-280 nm) based on wavelength. UV radiation (UVR) from sunlight (UVA + UVB) is a major cause of skin photodamage including skin inflammation, aging and pigmentation. Accidental exposure to UVC burns the skin and induces skin cancer. In addition to the skin, UV radiation can also impair visual function. Non-coding RNAs (ncRNAs) are a class of functional RNAs that do not have coding activity but can control cellular processes at the post-transcriptional level, including microRNA (miRNA), long non-coding RNA (lncRNA) and circulatory RNA (circRNA). Through a review of the literature, it was determined that UVR can affect the expression of various ncRNAs, and that this regulation may be wavelength specific. Functionally, ncRNAs participate in the regulation of photodamage through various pathways and play pathogenic or protective regulatory roles. In addition, ncRNAs that are upregulated or downregulated by UVR can serve as biomarkers for UV-induced diseases, aiding in diagnosis and prognosis assessment. Therapeutic strategies targeting ncRNAs, including the use of natural drugs and their extracts, have shown protective effects against UV-induced photodamage. In the present review, an extensive summarization of previous studies was performed and the role and mechanism of ncRNAs in UV-induced radiation effects was reviewed to aid in the diagnosis and treatment of UV-related diseases.
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Affiliation(s)
- Xiaofei Liang
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
| | - Chao Zhang
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
| | - Lijuan Shen
- Department of Laboratory Medicine, Qiqihar MingZhu Hospital, Qiqihar, Heilongjiang 161000, P.R. China
| | - Ling Ding
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
| | - Haipeng Guo
- Department of Laboratory Medicine, The First Hospital of Qiqihar, Qiqihar, Heilongjiang 161000, P.R. China
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2
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Kim S. LncRNA-miRNA-mRNA regulatory networks in skin aging and therapeutic potentials. Front Physiol 2023; 14:1303151. [PMID: 37881693 PMCID: PMC10597623 DOI: 10.3389/fphys.2023.1303151] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 10/02/2023] [Indexed: 10/27/2023] Open
Abstract
Skin aging is a complex process influenced by intrinsic and extrinsic factors. Although dermatology offers advanced interventions, molecular mechanisms in skin aging remain limited. Competing endogenous RNAs (ceRNAs), a subset of coding or non-coding RNAs, regulate gene expression through miRNA competition. Several ceRNA networks investigated up to now offer insights into skin aging and wound healing. In skin aging, RP11-670E13.6-miR-663a-CDK4/CD6 delays senescence induced by UVB radiation. Meg3-miR-93-5p-epiregulin contributes to UVB-induced inflammatory skin damage. Predicted ceRNA networks reveal UVA-induced photoaging mechanisms. SPRR2C sequesters miRNAs in epidermal aging-associated alteration of calcium gradient. H19-miR-296-5p-IGF2 regulates dermal fibroblast senescence. PVT1-miR-551b-3p-AQP3 influences skin photoaging. And bioinformatics analyses identify critical genes and compounds for skin aging interventions. In skin wound healing, MALAT1-miR-124 aids wound healing by activating the Wnt/β-catenin pathway. Hair follicle MSC-derived H19 promotes wound healing by inhibiting pyroptosis. And the SAN-miR-143-3p-ADD3 network rejuvenates adipose-derived mesenchymal stem cells in wound healing. Thus, ceRNA networks provide valuable insights into the molecular underpinnings of skin aging and wound healing, offering potential therapeutic strategies for further investigation. This comprehensive review serves as a foundational platform for future research endeavors in these crucial areas of dermatology.
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Affiliation(s)
- Sungchul Kim
- Center for RNA Research, Institute for Basic Science, Seoul, Republic of Korea
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3
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Li K, Zhou P, Guo Y, Xu T, Lin S, Lin S, Ji C. Recent advances in exosomal non-coding RNA-based therapeutic approaches for photoaging. Skin Res Technol 2023; 29:e13463. [PMID: 37753673 PMCID: PMC10495620 DOI: 10.1111/srt.13463] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 08/30/2023] [Indexed: 09/28/2023]
Abstract
BACKGROUND Photoaging is a degenerative biological process that affects the quality of life. It is caused by environmental factors including ultraviolet radiation (UVR), deep skin burns, smoking, active oxygen, chemical substances, and trauma. Among them, UVR plays a vital role in the aging process. AIM With the continuous development of modern medicine, clinical researchers have investigated novel approaches to treat aging. In particular, mesenchymal stem cells (MSCs), non-coding RNAs are involved in various physiological processes have broad clinical application as they have the advantages of convenient samples, abundant sources, and avoidable ethical issues. METHODS This article reviews research progress on five types of stem cell, exosomes, non-coding RNA in the context of photoaging treatment: adipose-derived stem cell, human umbilical cord MSCs, epidermal progenitor cells, keratinocyte stem cells, and hair follicle stem cells (HFSCs). It also includes stem cell related exosomes and their non-coding RNA research. RESULTS The results have clinical guiding significance for prevention and control of the onset and development of photoaging. It is found that stem cells secrete cytokines, cell growth factors, non-coding RNA, exosomes and proteins to repair aging skin tissues and achieve skin rejuvenation. In particular, stem cell exosomes and non-coding RNA are found to have significant research potential, as they possess the benefits of their source cells without the disadvantages which include immune rejection and granuloma formation.
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Affiliation(s)
- Kun‐Jie Li
- Department of Dermatologythe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouFujianChina
| | - Peng‐Jun Zhou
- Department of Dermatologythe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouFujianChina
| | - Yan‐Ni Guo
- Department of Dermatologythe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouFujianChina
| | - Tian‐Xing Xu
- Department of Dermatologythe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouFujianChina
| | - Song‐Fa Lin
- Department of Dermatologythe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouFujianChina
| | - Shu Lin
- Centre of Neurological and Metabolic Researchthe Second Affiliated Hospital of Fujian Medical UniversityQuanzhouFujianChina
- Group of NeuroendocrinologyGarvan Institute of Medical ResearchSydneyAustralia
| | - Chao Ji
- Department of Dermatologythe First Affiliated Hospital of Fujian Medical UniversityFuzhouFujianChina
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Zou X, Zou D, Li L, Yu R, Li X, Du X, Guo J, Wang K, Liu W. Multi-omics analysis of an in vitro photoaging model and protective effect of umbilical cord mesenchymal stem cell-conditioned medium. Stem Cell Res Ther 2022; 13:435. [PMID: 36056394 PMCID: PMC9438153 DOI: 10.1186/s13287-022-03137-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Accepted: 08/14/2022] [Indexed: 01/10/2023] Open
Abstract
Background Skin ageing caused by long-term ultraviolet (UV) irradiation is a complex biological process that involves multiple signalling pathways. Stem cell-conditioned media is believed to have anti-ageing effects on the skin. The purpose of this study was to explore the biological effects of UVB irradiation and anti-photoaging effects of human umbilical cord mesenchymal stem cell-conditioned medium (hUC-MSC-CM) on HaCaT cells using multi-omics analysis with a novel cellular photoaging model.
Methods A cellular model of photoaging was constructed by irradiating serum-starved HaCaT cells with 20 mJ/cm2 UVB. Transcriptomics and proteomics analyses were used to explore the biological effects of UVB irradiation on photoaged HaCaT cells. Changes in cell proliferation, apoptosis, and migration, the cell cycle, and expression of senescence genes and proteins were measured to assess the protective effects of hUC-MSC-CM in the cellular photoaging model. Results The results of the multi-omics analysis revealed that UVB irradiation affected various biological functions of cells, including cell proliferation and the cell cycle, and induced a senescence-associated secretory phenotype. hUC-MSC-CM treatment reduced cell apoptosis, inhibited G1 phase arrest in the cell cycle, reduced the production of reactive oxygen species, and promoted cell motility. The qRT-PCR results indicated that MYC, IL-8, FGF-1, and EREG were key genes involved in the anti-photoaging effects of hUC-MSC-CM. The western blotting results demonstrated that C-FOS, C-JUN, TGFβ, p53, FGF-1, and cyclin A2 were key proteins involved in the anti-photoaging effects of hUC-MSC-CM. Conclusion Serum-starved HaCaT cells irradiated with 20 mJ/cm2 UVB were used to generate an innovative cellular photoaging model, and hUC-MSC-CM demonstrates potential as an anti-photoaging treatment for skin. Supplementary Information The online version contains supplementary material available at 10.1186/s13287-022-03137-y.
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Affiliation(s)
- Xiaocang Zou
- Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, 100850, China.,Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China
| | - Dayang Zou
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China
| | - Linhao Li
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China
| | - Renfeng Yu
- The People's Liberation Army 965 Hospital, JiLin, 132000, China
| | - XianHuang Li
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China
| | - Xingyue Du
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China
| | - JinPeng Guo
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China.
| | - KeHui Wang
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China.
| | - Wei Liu
- Center for Disease Control and Prevention of PLA, 20 Dongdajie Street, Fengtai District, Beijing, 100071, China.
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5
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Xu X, Wang S, Zhou D, Qu J, Zhang C, Xu Y, Sun L. The Haoqin-Huaban formula alleviates UVB-induced skin damage through HOXA11-AS-mediated stabilization of EZH2. Am J Transl Res 2022; 14:2212-2230. [PMID: 35559404 PMCID: PMC9091108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 12/31/2021] [Indexed: 06/15/2023]
Abstract
Exposure of skin to ultraviolet B (UVB) irradiation induces oxidative damage, immune suppression, inflammation, and skin cancer. Recently, an increase in the use of traditional Chinese medicine decoction with antioxidant properties has emerged as protection for skin tissues against UVB-induced damage. The aim of this study was to investigate mechanisms of the protective effect of the Haoqin-Huaban formula (HQHB) on UVB-induced skin damage. First, cell survival, apoptosis, and oxidative stress were evaluated upon UVB irradiation in the presence of HQHB using HaCaT cells and mice as model systems. Subsequently, bioinformatic analyses, RNA pulldown assays, RNA immunoprecipitation, luciferase reporter assays, and chromatin immunoprecipitation were conducted to verify the regulation among HQHB, hypoxia-inducible factor 1α (HIF-1α), HOXA11-AS and enhancer of zeste homolog 2 (EZH2) in HaCaT cells. In this study, we found that administration of HQHB inhibited, in a dose-dependent manner, UVB-induced skin damage by eliminating oxidative stress. HQHB was found to upregulate HOXA11-AS expression by activating HIF-1α. Furthermore, HOXA11-AS stabilized the EZH2 protein by inhibiting its ubiquitination and proteasomal degradation. Consequently, rescue assays demonstrated that HOXA11-AS promoted proliferation and inhibited apoptosis in HaCaT cells by reducing oxidative stress. Taken together, our results help to elucidate the function and regulatory mechanism of HQHB in reducing UVB-induced skin damage.
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Affiliation(s)
- Xuying Xu
- Department of Ulcerative Vascular Surgery, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
| | - Siyi Wang
- Department of Dermatology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
| | - Dongmei Zhou
- Department of Dermatology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
| | - Jianhua Qu
- Department of Dermatology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
| | - Cang Zhang
- Department of Dermatology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
| | - Yichuan Xu
- Department of Dermatology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
| | - Liyun Sun
- Department of Dermatology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical UniversityBeijing 100010, China
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Wang Y, He M, Li X, Chai J, Jiang Q, Peng C, He G, Huang W. Design, Synthesis, and Biological Evaluation of Pyrano[2,3-c]-pyrazole-Based RalA Inhibitors Against Hepatocellular Carcinoma. Front Chem 2021; 9:700956. [PMID: 34869198 PMCID: PMC8634879 DOI: 10.3389/fchem.2021.700956] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/29/2021] [Indexed: 02/05/2023] Open
Abstract
The activation of Ras small GTPases, including RalA and RalB, plays an important role in carcinogenesis, tumor progress, and metastasis. In the current study, we report the discovery of a series of 6-sulfonylamide-pyrano [2,3-c]-pyrazole derivatives as novel RalA inhibitors. ELISA-based biochemical assay results indicated that compounds 4k–4r suppressed RalA/B binding capacities to their substrates. Cellular proliferation assays indicated that these RalA inhibitors potently inhibited the proliferation of HCC cell lines, including HepG2, SMMC-7721, Hep3B, and Huh-7 cells. Among the evaluated compounds, 4p displayed good inhibitory capacities on RalA (IC50 = 0.22 μM) and HepG2 cells (IC50 = 2.28 μM). Overall, our results suggested that a novel small-molecule RalA inhibitor with a 6-sulfonylamide-pyrano [2, 3-c]-pyrazole scaffold suppressed autophagy and cell proliferation in hepatocellular carcinoma, and that it has potential for HCC-targeted therapy.
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Affiliation(s)
- Yuting Wang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Mingyao He
- State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Jinlong Chai
- State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Qinglin Jiang
- School of Pharmacy and Sichuan Province College Key Laboratory of Structure-Specific Small Molecule Drugs, Chengdu Medical College, Chengdu, China
| | - Cheng Peng
- State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Gu He
- State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, China
| | - Wei Huang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Hospital of Chengdu University of Traditional Chinese Medicine, School of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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7
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Deng J, Tan W, Luo Q, Lin L, Zheng L, Yang J. Long Non-coding RNA MEG3 Promotes Renal Tubular Epithelial Cell Pyroptosis by Regulating the miR-18a-3p/GSDMD Pathway in Lipopolysaccharide-Induced Acute Kidney Injury. Front Physiol 2021; 12:663216. [PMID: 34012408 PMCID: PMC8128073 DOI: 10.3389/fphys.2021.663216] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 03/31/2021] [Indexed: 12/14/2022] Open
Abstract
Background and Objective: Acute kidney injury (AKI) is a complication of sepsis. Pyroptosis of gasdermin D (GSDMD)-mediated tubular epithelial cells (TECs) play important roles in pathogenesis of sepsis-associated AKI. Long non-coding RNA (lncRNA) maternally expressed gene 3 (MEG3), an imprinted gene involved in tumorigenesis, is implicated in pyroptosis occurring in multiple organs. Herein, we investigated the role and mechanisms of MEG3 in regulation of TEC pyroptosis in lipopolysaccharide (LPS)-induced AKI. Materials and Methods: Male C57BL/6 mice and primary human TECs were treated with LPS for 24 h to establish the animal and cell models, respectively, of sepsis-induced AKI. Renal function was assessed by evaluation of serum creatinine and urea levels. Renal tubule injury score was assessed by Periodic acid-Schiff staining. Renal pyroptosis was assessed by evaluating expression of caspase-1, GSDMD, and inflammatory factors IL-1β and IL-18. Cellular pyroptosis was assessed by analyzing the release rate of LDH, expression of IL-1β, IL-18, caspase-1, and GSDMD, and using EtBr and EthD2 staining. MEG3 expression in renal tissues and cells was detected using RT-qPCR. The molecular mechanisms of MEG3 in LPS-induced AKI were assessed through bioinformatics analysis, RNA-binding protein immunoprecipitation, dual luciferase reporter gene assays, and a rescue experiment. Results: Pyroptosis was detected in both LPS-induced animal and cell models, and the expression of MEG3 in these models was significantly up-regulated. MEG3-knockdown TECs treated with LPS showed a decreased number of pyroptotic cells, down-regulated secretion of LDH, IL-1β, and IL-18, and decreased expression of GSDMD, compared with those of controls; however, there was no difference in the expression of caspase-1 between MEG3 knockdown cells and controls. Bioinformatics analysis screened out miR-18a-3P, and further experiments demonstrated that MEG3 controls GSDMD expression by acting as a ceRNA for miR-18a-3P to promote TECs pyroptosis. Conclusion: Our study demonstrates that lncRNA MEG3 promoted renal tubular epithelial pyroptosis by regulating the miR-18a-3p/GSDMD pathway in LPS-induced AKI.
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Affiliation(s)
- Junhui Deng
- The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Tan
- The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qinglin Luo
- The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lirong Lin
- The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Luquan Zheng
- The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jurong Yang
- The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
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8
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Zhang S, Li L, Wang J, Zhang T, Ye T, Wang S, Xing D, Chen W. Recent advances in the regulation of ABCA1 and ABCG1 by lncRNAs. Clin Chim Acta 2021; 516:100-110. [PMID: 33545111 DOI: 10.1016/j.cca.2021.01.019] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 02/07/2023]
Abstract
Coronary heart disease (CHD) with atherosclerosis is the leading cause of death worldwide. ABCA1 and ABCG1 promote cholesterol efflux to suppress foam cell generation and reduce atherosclerosis development. Long noncoding RNAs (lncRNAs) are emerging as a unique group of RNA transcripts that longer than 200 nucleotides and have no protein-coding potential. Many studies have found that lncRNAs regulate cholesterol efflux to influence atherosclerosis development. ABCA1 is regulated by different lncRNAs, including MeXis, GAS5, TUG1, MEG3, MALAT1, Lnc-HC, RP5-833A20.1, LOXL1-AS1, CHROME, DAPK1-IT1, SIRT1 AS lncRNA, DYNLRB2-2, DANCR, LeXis, LOC286367, and LncOR13C9. ABCG1 is also regulated by different lncRNAs, including TUG1, GAS5, RP5-833A20.1, DYNLRB2-2, ENST00000602558.1, and AC096664.3. Thus, various lncRNAs are associated with the roles of ABCA1 and ABCG1 on cholesterol efflux in atherosclerosis regulation. However, some lncRNAs play dual roles in ABCA1 expression and atherosclerosis, and the functions of some lncRNAs in atherosclerosis have not been investigated in vivo. In this article, we review the roles of lncRNAs in atherosclerosis and focus on new insights into lncRNAs associated with the roles of ABCA1 and ABCG1 on cholesterol efflux and the potential of these lncRNAs as novel therapeutic targets in atherosclerosis.
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Affiliation(s)
- Shun Zhang
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China
| | - Lu Li
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China
| | - Jie Wang
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China
| | - Tingting Zhang
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China
| | - Ting Ye
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China
| | - Shuai Wang
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China; School of Medical Imaging, Radiotherapy Department of Affiliated Hospital, Weifang Medical University, Weifang, Shandong 261053, China
| | - Dongming Xing
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China; School of Life Sciences, Tsinghua University, Beijing 100084, China.
| | - Wujun Chen
- Cancer Institute, The Affiliated Hospital of Qingdao University, Qingdao University, Qingdao Cancer Institute, Qingdao, Shandong 266071, China.
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Tan YE, Xing Y, Ran BL, Zhang C, Pan SW, An W, Chen QC, Xu HM. LINC01235-TWIST2 feedback loop facilitates epithelial-mesenchymal transition in gastric cancer by inhibiting THBS2. Aging (Albany NY) 2020; 12:25060-25075. [PMID: 33206629 PMCID: PMC7803553 DOI: 10.18632/aging.103979] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 07/23/2020] [Indexed: 12/24/2022]
Abstract
Although the anomalous expression of long non-coding RNAs (lncRNAs) has been extensively investigated in numerous carcinomas including gastric cancer (GC), their function remains unclear. The aim of our study was to explore the role of LINC01235 in GC. We used real-time quantitative PCR (RT-qPCR) to measure the expression of LINC01235 and twist family bHLH transcription factor 2 (TWIST2) in GC tissues. Scratch and transwell assays were performed to evaluate cellular capacity for migration and invasion. Gene relationships were explored by Weighted Gene Co-Expression Network Analysis (WGCNA). We measured TWIST2, thrombospondin 2 (THBS2) and epithelial-mesenchymal transition (EMT)-related proteins with western blot. We also used Pearson correlation analysis and the Kaplan-Meier method to detect associations among genes and overall survival. We found that LINC01235 was upregulated in GC tissues and cells. LINC01235 down-regulation restricted migration and invasion. Interestingly, we found the LINC01235-TWIST2-THBS2 axis induced EMT. Additionally, TWIST2 upregulated LINC01235 transcription in luciferase and chromatin immunoprecipitation (ChIP) assays. Bioinformatics analysis showed that microRNA (miR)-6852-5p might be a key gene involved in the regulation of TWIST2 by LINC01235. The LINC01235-TWIST2 positive feedback loop mainly affected migration and invasion of GC cells, which suggests it may serve as a potential therapeutic target in gastric cancer.
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Affiliation(s)
- Yu-En Tan
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yao Xing
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Ban-Lai Ran
- Department of Cell Biology, Key Laboratory of Cell Biology of Ministry of Public Health, and Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning, China
| | - Chao Zhang
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Si-Wei Pan
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wen An
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Qing-Chuan Chen
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China
| | - Hui-Mian Xu
- Department of Surgical Oncology, First Affiliated Hospital of China Medical University, Shenyang, China
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10
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Dong Y, Feng S, Dong F. Maternally-Expressed Gene 3 (MEG3)/miR-143-3p Regulates Injury to Periodontal Ligament Cells by Mediating the AKT/Inhibitory κB Kinase (IKK) Pathway. Med Sci Monit 2020; 26:e922486. [PMID: 32520926 PMCID: PMC7301678 DOI: 10.12659/msm.922486] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Background Dysregulated long noncoding RNAs (lncRNAs) are implicated in periodontitis development. Nevertheless, the role and mechanism of lncRNA maternally-expressed gene 3 (MEG3) in periodontitis progression remain unclear. This study aimed to explore how and whether MEG3 affect viability, apoptosis, and inflammatory response in lipopolysaccharide (LPS)-treated periodontal ligament cells (PDLCs). Material/Methods Periodontal ligament tissues were collected from periodontitis patients or normal individuals. PDLCs were obtained from normal periodontal ligament and treated with lipopolysaccharide (LPS). LPS-induced PDLCs injury was assessed via viability, apoptosis and inflammatory response using Cell Counting Kit-8, flow cytometry, quantitative reverse transcription polymerase chain reaction, enzyme-linked immunosorbent assay, and Western blot. The levels of MEG3 and microRNA (miR)-143-3p were examined via quantitative reverse transcription polymerase chain reaction. The protein kinase B(AKT)/inhibitory κB kinase (IKK) pathway was analyzed via Western blot. The target correlation of MEG3 and miR-143-3p was determined through dual-luciferase reporter analysis. Results MEG3 level was decreased and miR-143-3p level was upregulated in periodontitis and LPS-treated PDLCs. MEG3 overexpression or miR-143-3p knockdown alleviated LPS-induced viability inhibition, apoptosis promotion, and inflammatory response. MEG3 was a sponge for miR-143-3p. miR-143-3p overexpression weakened the effect of MEG3 on LPS-induced injury. MEG3 overexpression inhibited the activation of AKT/IKK pathway by sponging miR-143-3p in LPS-treated PDLCs. Conclusions MEG3 overexpression inhibited LPS-induced injury in PDLCs by inactivating the AKT/IKK pathway via sponging miR-143-3p, providing a potential target for treatment of periodontitis.
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Affiliation(s)
- Yao Dong
- Department of Stomatology, HwaMei Hospital, University of Chinese Academy of Science, Ningbo, Zhejiang, China (mainland)
| | - Shuairu Feng
- Department of Stomatology, HwaMei Hospital, University of Chinese Academy of Science, Ningbo, Zhejiang, China (mainland)
| | - Feijun Dong
- Department of Stomatology, HwaMei Hospital, University of Chinese Academy of Science, Ningbo, Zhejiang, China (mainland)
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Ma Y, Zhai D, Zhang W, Zhang H, Dong L, Zhou Y, Feng D, Zheng Y, Wang T, Mao C, Wang X. Down-regulation of long non-coding RNA MEG3 promotes Schwann cell proliferation and migration and repairs sciatic nerve injury in rats. J Cell Mol Med 2020; 24:7460-7469. [PMID: 32436312 PMCID: PMC7339166 DOI: 10.1111/jcmm.15368] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 02/01/2020] [Accepted: 04/22/2020] [Indexed: 12/18/2022] Open
Abstract
Peripheral nerve injury and regeneration are complex processes and involve multiple molecular and signalling components. However, the involvement of long non-coding RNA (lncRNA) in this process is not fully clarified. In this study, we evaluated the expression of the lncRNA maternally expressed gene 3 (MEG3) in rats after sciatic nerve transection and explored its potential mechanisms. The expression of lncRNA MEG3 was up-regulated following sciatic nerve injury and observed in Schwann cells (SCs). The down-regulation of lncRNA MEG3 in SCs enhanced the proliferation and migration of SCs via the PTEN/PI3K/AKT pathway. The silencing of lncRNA MEG3 promoted the migration of SCs and axon outgrowth in rats after sciatic nerve transection and facilitated rat nerve regeneration and functional recovery. Our findings indicated that lncRNA MEG3 may be involved in nerve injury and injured nerve regeneration in rats with sciatic nerve defects by regulating the proliferation and migration of SCs. This gene may provide a potential therapeutic target for improving peripheral nerve injury.
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Affiliation(s)
- Yongbin Ma
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Pathogen Biology & Immunology, Jiangsu Key Laboratory of Pathogen Biology, Nanjing Medical University, Nanjing, China.,Department of Neurology Laboratory, Jintan Hospital, Jiangsu University, Jintan, China
| | - Dongwang Zhai
- Department of Clinical Laboratory, Aerospace Center Hospital, Peking University, Beijing, China
| | - Wenzhe Zhang
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Huanyan Zhang
- Department of Neurology Laboratory, Jintan Hospital, Jiangsu University, Jintan, China
| | - Liyang Dong
- Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yuepeng Zhou
- Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Dingqi Feng
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Yu Zheng
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Ting Wang
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Chaoming Mao
- Department of Nuclear Medicine and Institute of Oncology, The Affiliated Hospital of Jiangsu University, Zhenjiang, China
| | - Xuefeng Wang
- Department of Central Laboratory, The Affiliated Hospital of Jiangsu University, Zhenjiang, China.,Department of Neurology Laboratory, Jintan Hospital, Jiangsu University, Jintan, China
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