1
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Jiang X. Long noncoding RNA MEG3: an active player in fibrosis. Pharmacol Rep 2024:10.1007/s43440-024-00661-x. [PMID: 39373865 DOI: 10.1007/s43440-024-00661-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 09/29/2024] [Accepted: 09/30/2024] [Indexed: 10/08/2024]
Abstract
Fibrosis, characterized by excess accumulation of extracellular matrix components, disrupts normal tissue structure and causes organ dysfunction. Long noncoding RNAs (lncRNAs) are a subset of RNAs longer than 200 nucleotides that are not converted into proteins. The increasing research indicated that lncRNA maternally expressed gene 3 (MEG3) was dysregulated in the pathologic process of fibrosis in several tissues. LncRNA MEG3 was revealed to regulate the expression of target proteins or serve as a miRNAs sponge to control the development of fibrosis, which was involved in NF-ҡB, PI3K/AKT, JAK2/STAT3, Wnt/β-catenin, ERK/p38, and Hh pathway. Importantly, the interference of MEG3 level ameliorated fibrosis. The present review summarized available studies of lncRNA MEG3 in fibrosis, which is helpful for a deeper understanding of the roles of MEG3 in fibrosis.
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Affiliation(s)
- Xiaoying Jiang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, 76 Yanta West Road, Xi'an, Shaanxi, 710061, China.
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2
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Wang H, Chang Y, Liu X, Liu L, Hua M, Li A. Protective effects of baicalin on diethyl nitrosamine-induced liver cirrhosis by suppressing oxidative stress and inflammation. Chem Biol Drug Des 2024; 103:e14386. [PMID: 37923393 DOI: 10.1111/cbdd.14386] [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: 06/25/2023] [Revised: 09/22/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023]
Abstract
Baicalin (BA) is a natural product extract with anti-inflammatory, antioxidant, and hepatoprotective properties. Given that the exact underlying mechanisms responsible for the impact of BA on liver cirrhosis remain ambiguous, a detailed investigation is sorely needed. Accordingly, a rat liver cirrhosis model was established via the intraperitoneal injection of diethyl nitrosamine (DEN, 100 mg/kg). Following the modeling, these rats were given BA (100 mg/kg) or N-acetylcysteine (NAC, 150 mg/kg) alone or in combination. The pathological morphology of rat liver tissues in each group was observed by hematoxylin and eosin staining and Masson's trichrome staining. The expression of fibrosis-related proteins was evaluated by Western blot, and the levels of liver function-related biochemical indexes, oxidative stress-related indexes, and inflammatory factors in the serum by enzyme-linked immunosorbent assays (ELISA). The level of mitochondrial reactive oxygen species was measured by flow cytometry. The results depicted that in the rat model of DEN-induced liver cirrhosis, BA reduced the expression of fibrosis-related proteins (collagen type I alpha 1, α-smooth muscle actin, and transforming growth factor-β1), thereby alleviating the structural fibrosis of liver tissue. Furthermore, BA could diminish the level of mitochondrial reactive oxygen species, and the serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), malondialdehyde (MDA), interleukin (IL)-1β, IL-6, tumor necrosis factor-α (TNF-α), and monocyte chemotactic protein-1 (MCP-1), while promoting albumin, superoxide dismutase (SOD), and glutathione peroxidase (GSH-Px) levels. Notably, all these effects of BA above were strengthened following the combined treatment of BA and NAC. On the whole, BA suppresses liver fibrosis by inhibiting oxidative stress and inflammation, thereby exerting a hepatoprotective effect.
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Affiliation(s)
- Hui Wang
- Emergency Department, Beijing Ditan Hospital Capital Medical University, Beijing, China
| | - Yufei Chang
- Emergency Department, Beijing Ditan Hospital Capital Medical University, Beijing, China
| | - Xiao Liu
- Emergency Department, Beijing Ditan Hospital Capital Medical University, Beijing, China
| | - Linan Liu
- Emergency Department, Beijing Ditan Hospital Capital Medical University, Beijing, China
| | - Mingxi Hua
- Capital Medical University Affiliated Beijing Shijitan Hospital Biomedical Innovation Center, Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, China
| | - Ang Li
- Critical Care Medicine Department, Beijing Ditan Hospital Capital Medical University, Beijing, China
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Zhang K, Liu C, Hu C, Lin P, Qi Q, Jia H, Tang J, Yu X. Long non-coding RNA AC245100.4 activates the PI3K/AKT pathway to promote PCa cell proliferation by elevating PAR2. Heliyon 2023; 9:e16870. [PMID: 37346322 PMCID: PMC10279817 DOI: 10.1016/j.heliyon.2023.e16870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/28/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023] Open
Abstract
Background Prostate cancer (PCa) is among the most generally diagnosed cancers in males. A long non-coding RNA (lncRNA) called AC245100.4 has been discovered and linked to PCa carcinogenesis. However, its specific and potential mechanism is uncertain in PCa. In this research, we investigated the role of AC245100.4 in cell proliferation and the underlying mechanism in PCa cells. Methods qRT-PCR assays were utilized to detect AC245100.4 expression and confirm its downstream target. The pathways related to AC245100.4 were identified by RAP-MS. PCa cell proliferation was experimented by Cell Counting Kit-8 and Colony formation assays. Western blot was performed to detect PAR2, AKT, p-AKT, Cyclin D1 and PCNA expression. Results AC245100.4/PAR2 overexpression promotes PCa cell proliferation and the opposite results are obtained after AC245100.4/PAR2 knockdown. Mechanistically, we found that PAR2 is confirmed as the AC245100.4 downstream target and AC245100.4 promotes PCa cell proliferation by regulating PAR2. AC245100.4 promotes PCa cell proliferation via PI3K/AKT pathway. Rescue assays validated that PAR2 knockdown reversed the impact of AC245100.4 overexpression on increasing p-AKT protein levels. Conclusion This research revealed that AC245100.4 enhances cell proliferation in PCa cells through modulating the PAR2/PI3K/AKT axis, which may offer novel tumor markers and potential therapeutic targets for PCa.
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Affiliation(s)
- Ke Zhang
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Chi Liu
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Changbin Hu
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
- Department of Rehabilitation, University-Town Hospital of Chongqing Medical University, Chongqing, 40016, China
| | - Ping Lin
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Qi Qi
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Huizhen Jia
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Jiebing Tang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang, China
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
| | - Xiaoguang Yu
- Department of Biochemistry & Molecular Biology, Harbin Medical University, Harbin, Heilongjiang, 150086, China
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4
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Li J, Liu W, Peng F, Cao X, Xie X, Peng C. The multifaceted biology of lncR-Meg3 in cardio-cerebrovascular diseases. Front Genet 2023; 14:1132884. [PMID: 36968595 PMCID: PMC10036404 DOI: 10.3389/fgene.2023.1132884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/28/2023] [Indexed: 03/12/2023] Open
Abstract
Cardio-cerebrovascular disease, related to high mortality and morbidity worldwide, is a type of cardiovascular or cerebrovascular dysfunction involved in various processes. Therefore, it is imperative to conduct additional research into the pathogenesis and new therapeutic targets of cardiovascular and cerebrovascular disorders. Long non-coding RNAs (lncRNAs) have multiple functions and are involved in nearly all cellular biological processes, including translation, transcription, signal transduction, and cell cycle control. LncR-Meg3 is one of them and is becoming increasingly popular. By binding proteins or directly or competitively binding miRNAs, LncR-Meg3 is involved in apoptosis, inflammation, oxidative stress, endoplasmic reticulum stress, epithelial-mesenchymal transition, and other processes. Recent research has shown that LncR-Meg3 is associated with acute myocardial infarction and can be used to diagnose this condition. This article examines the current state of knowledge regarding the expression and regulatory function of LncR-Meg3 in relation to cardiovascular and cerebrovascular diseases. The abnormal expression of LncR-Meg3 can influence neuronal cell death, inflammation, apoptosis, smooth muscle cell proliferation, etc., thereby aggravating or promoting the disease. In addition, we review the bioactive components that target lncR-Meg3 and propose some potential delivery vectors. A comprehensive and in-depth analysis of LncR-Meg3’s role in cardiovascular disease suggests that targeting LncR-Meg3 may be an alternative therapy in the near future, providing new options for slowing the progression of cardiovascular disease.
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Affiliation(s)
- Jing Li
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wenxiu Liu
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Fu Peng
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Pharmacology, Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaofang Xie, ; Cheng Peng,
| | - Xiaoyu Cao
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofang Xie
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaofang Xie, ; Cheng Peng,
| | - Cheng Peng
- Key Laboratory of Southwestern Chinese Medicine Resources, Key Laboratory of standardization of Chinese herbal medicine of MOE, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Fu Peng, ; Xiaofang Xie, ; Cheng Peng,
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5
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Maloum Z, Taheri M, Ghafouri-Fard S, Shirvani-Farsani Z. Significant reduction of long non-coding RNAs expression in bipolar disorder. BMC Psychiatry 2022; 22:256. [PMID: 35410190 PMCID: PMC9004165 DOI: 10.1186/s12888-022-03899-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 03/31/2022] [Indexed: 12/23/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) have been recently emerged as critical modulators of oxidative stress pathway. Likewise, rising evidence currently highlights dysfunction of oxidative stress pathways in bipolar disorder (BD) patients.In the current study, we evaluated the expression levels of H19, SCAL1 (LUCAT1), RMST, MEG3 and MT1DP lncRNAs in the PBMC from 50 patients with BD and 50 control subjects (male/female ratio in each group: 70%/30%). Expression levels of SCAL1, RMST and MEG3 but not H19 and MT1DP were considerably decreased in BD patients compared with healthy individuals. Such significant decrease in the expression of MEG3, RMST and SCAL1 was only reported in male BD patients compared with male controls. Substantial pairwise correlations were observed between expression levels of these lncRNAs in BD subjects. The area under curve values for RMST, MEG3 and SCAL1 were 0.70, 0.63 and 0.61 respectively. On the basis of this finding, RMST had the best efficiency in the discrimination of disease status between BD patients and controls. Taken together, the current results suggest a role for MEG3, RMST and SCAL1 lncRNAs in the pathogenesis of BD. In addition, peripheral expression levels of these lncRNAs might serve as potential peripheral markers for BD.
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Affiliation(s)
- Zahra Maloum
- grid.412502.00000 0001 0686 4748Department of Cell and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University, Tehran, Iran
| | - Mohammad Taheri
- grid.411600.2Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Zeinab Shirvani-Farsani
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Technology, Shahid Beheshti University, Tehran, Iran.
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6
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Li B, Li Y, Li S, Li H, Liu L, Xu Y. Inhibition of Protease Activated Receptor 2 Attenuates HBx-Induced Inflammation and Mitochondria Oxidative Stress. Infect Drug Resist 2022; 15:961-973. [PMID: 35299854 PMCID: PMC8921841 DOI: 10.2147/idr.s343864] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 02/19/2022] [Indexed: 01/28/2024] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) infection is one of the global public problems. Among the known infection cases, HBV X protein (HBx) is one of the key inducements of viral replication and host infection. This study was aimed to uncover the role of protease activated receptor 2 (PAR2) on HBx-induced liver injury. METHODS A PAR2-KO mouse model expressing HBx was constructed using hydrodynamics-based in vivo gene transfection method. In addition, pcDNA3.1-HBx was used to over-express HBx in LO2 cells. The effects of HBx overexpression on inflammation and mitochondria oxidative stress were evaluated. RESULTS We found that PAR2 protein level was increased by HBx overexpression. The enforced HBx inhibited LO2 cells apoptosis. Meanwhile, HBx induced inflammation reactions through promoting the secretion of pro-inflammatory cytokines such as TNF-α, IL-6, and CXCL-2. Overexpressed HBx also resulted in mitochondria oxidative stress by upregulation of ROS level and downregulation of MMP and ATP. However, in FSLLRY-NH2 (PAR2 antagonist) treated LO2 cells or PAR2-KO mice, PAR2 blockade reversed the above adverse effects of HBx on liver cells or tissues. CONCLUSION Inhibition of PAR2 may suppress inflammation and mitochondria oxidative stress caused by HBx, pointing out the potential application values of PAR2 antagonist on the treatment of HBV infection in clinic.
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Affiliation(s)
- Bin Li
- Laboratory of Immunology and Pathogenic Biology, Experimental Teaching Center of Basic Medicine, Jinzhou Medical University, Jinzhou City, Liaoning Province, 121001, People’s Republic of China
| | - Yonggang Li
- Department of Pathogenic Biology, School of Basic Medicine, Jinzhou Medical University, Jinzhou City, Liaoning Province, 121001, People’s Republic of China
| | - Shuhua Li
- Laboratory of Immunology and Pathogenic Biology, Experimental Teaching Center of Basic Medicine, Jinzhou Medical University, Jinzhou City, Liaoning Province, 121001, People’s Republic of China
| | - Hongwei Li
- Laboratory of Immunology and Pathogenic Biology, Experimental Teaching Center of Basic Medicine, Jinzhou Medical University, Jinzhou City, Liaoning Province, 121001, People’s Republic of China
| | - Ling Liu
- Laboratory of Immunology and Pathogenic Biology, Experimental Teaching Center of Basic Medicine, Jinzhou Medical University, Jinzhou City, Liaoning Province, 121001, People’s Republic of China
| | - Yao Xu
- School of Pharmacy, Jinzhou Medical University, Jinzhou City, Liaoning Province, 121001, People’s Republic of China
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7
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Wu YY, Wu S, Li XF, Luo S, Wang A, Yin SQ, Huang C, Li J. LncRNA MEG3 reverses CCl 4-induced liver fibrosis by targeting NLRC5. Eur J Pharmacol 2021; 911:174462. [PMID: 34536366 DOI: 10.1016/j.ejphar.2021.174462] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 08/25/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023]
Abstract
Liver fibrosis is a persistent pathological repair of chronic liver injury, which is characterized by excessive deposition of collagen-dominated extracellular matrix (ECM). It is well known that hepatic fibrosis can be reversed in the absence of etiology. Studies have shown that long non-coding RNA (Lnc RNA) maternally expressed gene3 (MEG3) has strong effects on the activation of hepatic stellata cells (HSCs). However, the function of MEG3 in the reversal of liver fibrosis has not been studied. In this experiment, we studied the content expression, function, and part of the potential mechanism of MEG3 in reversing liver fibrosis. In in vivo and in vitro models, we found that MEG3 was down-regulated during the formation of liver fibrosis, while it was up-regulated during the reversal of liver fibrosis. Then, it was found that the silencing of MEG3 could gradually restore the activity of the inactivated LX-2 cells, Overexpression of MEG3 can inhibit the activation of LX-2 cells, accelerate the reversal of liver fibrosis. Through catRAPID analysis, it was found that NLR family CARD domain containing 5 (NLRC5) may be a target of MEG3. We found that, after MEG3 silencing, NLRC5 expression was upregulated in LX-2 cells in the reverse phase, while, after MEG3 overexpression, NLRC5 expression was decreased. Further, we verified that MEG3 can target NLRC5 through RNA pull down experiment. Therefore, MEG3 may inhibit the activation of hepatic stellate cells by targeting NLRC5, thus accelerating the reversal of hepatic fibrosis.
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Affiliation(s)
- Yuan-Yuan Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Sha Wu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Xiao-Feng Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China; Postdoctoral Station of Clinical Medicine of Anhui Medical University, Hefei, Anhui, China
| | - Shuai Luo
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Ao Wang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Su-Qin Yin
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - Cheng Huang
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
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Bretti C, Cardiano P, Irto A, Lando G, Milea D, Sammartano S. Interaction of N-acetyl-l-cysteine with Na +, Ca 2+, Mg 2+ and Zn 2+. Thermodynamic aspects, chemical speciation and sequestering ability in natural fluids. J Mol Liq 2020; 319:114164. [PMID: 32904480 PMCID: PMC7455796 DOI: 10.1016/j.molliq.2020.114164] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/23/2020] [Accepted: 08/27/2020] [Indexed: 11/24/2022]
Abstract
The estimation of thermodynamic parameters of N-Acetyl-L-cysteine (NAC) protonation were determined in NaCl(aq), (CH3)4NCl(aq), (C2H5)4NI(aq), employing various temperature and ionic strengths conditions, by potentiometric measurements. The interaction of NAC with some essential metal cations (e.g., Ca2+, Mg2+ and Zn2+) was investigated as well at 298.15 K in NaCl(aq) in the ionic strength range 0.1 ≤ I/mol dm-3 ≤ 1.0. The values of protonation constants at infinite dilution and at T = 298.15 K are: log K 1 H = 9.962 ± 0.005 (S-H) and log K 2 H = 3.347 ± 0.008 (COO-H). In the presence of a background electrolyte, both log K 1 H and log K 2 H values followed the trend (C2H5)4NI ≥ (CH3)4NCl ≥ NaCl. The differences in the values of protonation constants among the three ionic media were interpreted in terms of variation of activity coefficients and formation of weak complexes. Accordingly, the determination of the stability of 4 species, namely: NaL-, NaHL0 (aq), (CH3)4NL-, (CH3)4NHL0 (aq) was assessed. In addition, as regards the interactions of Mg2+, Ca2+ and Zn2+ with NAC, the main species where the ML0 (aq), ML(OH)-, and ML2 2-, that were found to be important in the chemical speciation of NAC in real multicomponent solutions. The whole set of the data collected may be crucial for the development of NAC-based materials for natural fluids selective decontamination from heavy metals.
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Affiliation(s)
- Clemente Bretti
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Paola Cardiano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Anna Irto
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Gabriele Lando
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Demetrio Milea
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
| | - Silvio Sammartano
- Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, Università di Messina, Viale Ferdinando Stagno d'Alcontres 31, 98166 Messina, Italy
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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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