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Abd ELhafeez AS, Ghanem HM, Swellam M, Taha AM. Involvement of FAM170B-AS1, hsa-miR-1202, and hsa-miR-146a-5p in breast cancer. Cancer Biomark 2024; 39:313-333. [PMID: 38250762 DOI: 10.3233/cbm-230396] [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] [Indexed: 01/23/2024]
Abstract
BACKGROUND FAM170B-AS1 is usually expressed low in all organs except for testicular tissues. No study was performed to explore its role in breast cancer (BC). Contradictory results were reported about hsa-miR-1202 and hsa-miR-146a-5p in BC. OBJECTIVE The present study aimed to explore the involvement of FAM170B-AS1 in BC using bioinformatics predictive tools, followed by a practical validation besides exploring the impact of hsa-miR-1202 and hsa-miR-146a-5p in BC. METHODS This study enrolled 96 female patients with BC, 30 patients with benign breast diseases (BBD), and 25 control subjects. The expressions of circulating FAM170B-AS1, hsa-miR-1202, and hsa-miR-146a-5p were quantified using qRT-PCR. These ncRNAs' associations, predictive, and diagnostic roles in BC were statistically tested. The underlying miRNA/mRNA targets of FAM170B-AS1 in BC were bioinformatically predicted followed by confirmation based on the GEPIA and TCGA databases. RESULTS The expression of FAM170B-AS1 was upregulated in sera of BC patients and hsa-miR-1202 was upregulated in sera of BBD and BC patients while that of hsa-miR-146a-5p was downregulated in BC. These FAM170B-AS1 was significantly associated with BC when compared to BBD. FAM170B-AS1 and hsa-miR-1202 were statistically associated with the BC's stage, grade, and LN metastasis. FAM170B-AS1 and hsa-miR-146a-5p gave the highest specificity and sensitivity for BC. KRAS and EGFR were predicted to be targeted by FAM170B-AS1 through interaction with hsa-miR-143-3p and hsa-miR-7-5p, respectively. Based on the TCGA database, cancer patients having mutations in FAM170B show good overall survival. CONCLUSIONS The present study reported that for the first time, FAM170B-AS1 may be a potential risk factor, predictive, and diagnostic marker for BC. In addition, FAM170B-AS1 might be involved in BC by interacting with hsa-miR-143-3p/KRAS and hsa-miR-7-5p/EGFR through enhancement or repression that may present a new therapeutic option for BC.
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Affiliation(s)
| | - Hala Mostafa Ghanem
- Department of Biochemistry, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Menha Swellam
- Biochemistry Department, Biotechnology Research Institute, National Research Centre, Dokki, Giza, Egypt
- High Throughput Molecular and Genetic laboratory, Central Laboratories Network and the Centers of Excellence, National Research Centre, Dokki, Giza, Egypt
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Mahmoudi Z, Jahani M, Nekouian R. Role of curcumin on miR-26a and its effect on DNMT1, DNMT3b, and MEG3 expression in A549 lung cancer cell. J Cancer Res Ther 2023; 19:1788-1793. [PMID: 38376279 DOI: 10.4103/jcrt.jcrt_2181_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 12/28/2021] [Indexed: 02/21/2024]
Abstract
CONTEXT Most of the patients diagnosed with non-small cell lung cancer (NSCLC) are in their advanced stages and as a result might not be cured in spite of the advances in aimed therapy. In the recent years, the role of noncoding RNAs (ncRNAs) has been expanded to cancer as potential targets for RNA-based epigenetic therapies. Curcumin, as an active ingredient, is associated with epigenetic alterations, and it might modulate the expression of tumor suppressor and oncogenic microRNAs. MATERIALS AND METHODS In this study, we investigated the RNA-based epigenetic effects of curcumin on NSCLC, and the effect of curcumin on A549 cell viability was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. The expression of miR-26a, MEG3, DNA methyltransferase 1 (DNMT1), and DNMT3 beta (DNMT3b) was assessed by quantitative polymerase chain reaction. STATISTICAL ANALYSIS USED Data analysis was done using Prism®6 software (GraphPad Software, Inc., La Jolla, CA, USA), and statistical analysis was performed using t-test between control and vitality samples. RESULTS The results showed a significant increase (P < 0.05) of miR-26a expression which in turn was associated with a significant decrease (P < 0.05) in expression of DNMTs and subsequently a significant increase in MEG3 expression (P < 0.05) in A549 cell line after adding curcumin in the media. CONCLUSION Considering all the data together, we could speculate the role of curcumin in ceasing the progression of cancer in its early stages and might be considered a potential drug for the treatment of NSCLC-derived lung cancer by establishing a meaningful relationship between epigenetic mechanisms and ncRNAs.
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Affiliation(s)
- Zahra Mahmoudi
- Department of Medical Biotechnology, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mojtaba Jahani
- Department of Medical Biotechnology, School of Allied Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Nekouian
- Department of Medical Biotechnology, School of Allied Medicine, Pediatric Growth and Development Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences, Tehran, Iran
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Georgoulis V, Koumpis E, Hatzimichael E. The Role of Non-Coding RNAs in Myelodysplastic Neoplasms. Cancers (Basel) 2023; 15:4810. [PMID: 37835504 PMCID: PMC10571949 DOI: 10.3390/cancers15194810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Myelodysplastic syndromes or neoplasms (MDS) are a heterogeneous group of myeloid clonal disorders characterized by peripheral blood cytopenias, blood and marrow cell dysplasia, and increased risk of evolution to acute myeloid leukemia (AML). Non-coding RNAs, especially microRNAs and long non-coding RNAs, serve as regulators of normal and malignant hematopoiesis and have been implicated in carcinogenesis. This review presents a comprehensive summary of the biology and role of non-coding RNAs, including the less studied circRNA, siRNA, piRNA, and snoRNA as potential prognostic and/or predictive biomarkers or therapeutic targets in MDS.
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Affiliation(s)
- Vasileios Georgoulis
- Department of Haematology, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece; (V.G.); (E.K.)
| | - Epameinondas Koumpis
- Department of Haematology, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece; (V.G.); (E.K.)
| | - Eleftheria Hatzimichael
- Department of Haematology, University Hospital of Ioannina, Faculty of Medicine, University of Ioannina, 45 500 Ioannina, Greece; (V.G.); (E.K.)
- Computational Medicine Center, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19 107, USA
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Zhang Z, Shi S, Li J, Costa M. Long Non-Coding RNA MEG3 in Metal Carcinogenesis. TOXICS 2023; 11:toxics11020157. [PMID: 36851033 PMCID: PMC9962265 DOI: 10.3390/toxics11020157] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 01/23/2023] [Accepted: 01/31/2023] [Indexed: 06/06/2023]
Abstract
Most transcripts from human genomes are non-coding RNAs (ncRNAs) that are not translated into proteins. ncRNAs are divided into long (lncRNAs) and small non-coding RNAs (sncRNAs). LncRNAs regulate their target genes both transcriptionally and post-transcriptionally through interactions with proteins, RNAs, and DNAs. Maternally expressed gene 3 (MEG3), a lncRNA, functions as a tumor suppressor. MEG3 regulates cell proliferation, cell cycle, apoptosis, hypoxia, autophagy, and many other processes involved in tumor development. MEG3 is downregulated in various cancer cell lines and primary human cancers. Heavy metals, such as hexavalent chromium (Cr(VI)), arsenic, nickel, and cadmium, are confirmed human carcinogens. The exposure of cells to these metals causes a variety of cancers. Among them, lung cancer is the one that can be induced by exposure to all of these metals. In vitro studies have demonstrated that the chronic exposure of normal human bronchial epithelial cells (BEAS-2B) to these metals can cause malignant cell transformation. Metal-transformed cells have the capability to cause an increase in cell proliferation, resistance to apoptosis, elevated migration and invasion, and properties of cancer stem-like cells. Studies have revealed that MEG is downregulated in Cr(VI)-transformed cells, nickel-transformed cells, and cadmium (Cd)-transformed cells. The forced expression of MEG3 reduces the migration and invasion of Cr(VI)-transformed cells through the downregulation of the neuronal precursor of developmentally downregulated protein 9 (NEDD9). MEG3 suppresses the malignant cell transformation of nickel-transformed cells. The overexpression of MEG3 decreases Bcl-xL, causing reduced apoptosis resistance in Cd-transformed cells. This paper reviews the current knowledge of lncRNA MEG3 in metal carcinogenesis.
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Xu J, Wang X, Zhu C, Wang K. A review of current evidence about lncRNA MEG3: A tumor suppressor in multiple cancers. Front Cell Dev Biol 2022; 10:997633. [PMID: 36544907 PMCID: PMC9760833 DOI: 10.3389/fcell.2022.997633] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
Long non-coding RNA (lncRNA) maternally expressed gene 3 (MEG3) is a lncRNA located at the DLK1-MEG3 site of human chromosome 14q32.3. The expression of MEG3 in various tumors is substantially lower than that in normal adjacent tissues, and deletion of MEG3 expression is involved in the occurrence of many tumors. The high expression of MEG3 could inhibit the occurrence and development of tumors through several mechanisms, which has become a research hotspot in recent years. As a member of tumor suppressor lncRNAs, MEG3 is expected to be a new target for tumor diagnosis and treatment. This review discusses the molecular mechanisms of MEG3 in different tumors and future challenges for the diagnosis and treatment of cancers through MEG3.
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Affiliation(s)
- Jie Xu
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xia Wang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Chunming Zhu
- Department of Family Medicine, Shengjing Hospital of China Medical University, Shenyang, China,*Correspondence: Chunming Zhu, ; Kefeng Wang,
| | - Kefeng Wang
- Department of Urology, Shengjing Hospital of China Medical University, Shenyang, China,*Correspondence: Chunming Zhu, ; Kefeng Wang,
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LncRNA MEG3 promotes the sensitivity of bortezomib by inhibiting autophagy in multiple myeloma. Leuk Res 2022; 123:106967. [DOI: 10.1016/j.leukres.2022.106967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 09/17/2022] [Accepted: 10/04/2022] [Indexed: 11/06/2022]
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Li M, Chen Z, Jiang T, Yang X, Du Y, Liang J, Wang L, Xi J, Lin M, Feng M. Circadian rhythm-associated clinical relevance and Tumor Microenvironment of Non-small Cell Lung Cancer. J Cancer 2021; 12:2582-2597. [PMID: 33854619 PMCID: PMC8040717 DOI: 10.7150/jca.52454] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 02/12/2021] [Indexed: 01/08/2023] Open
Abstract
Objective: We aimed to explore the prognostic implication for non-small cell lung cancer (NSCLC) based on the expression profiles of circadian clock-related genes (CCRGs), and describe the changes of immune infiltration and cell functions of related to the circadian rhythm. Methods: Univariate and multivariate Cox proportional hazard regression were performed to determine a CCRGs risk-score significantly correlated with overall survival (OS) of the training set and validation set. GO, KEGG, and GSVA indicated discrepant changes in cellular processes and signaling pathways associated with these CCRGs. Immune cell infiltration and mutation rates were investigated by the online analysis platform and the algorithm provided by works of literature. Results: The signature-based on ten-gene signatures could independently predict the OS both in TCGA lung adenocarcinoma (p < 0.001, HR: 1.228, 95% CI: 1.158 to 1.302) and lung squamous cell carcinoma (p < 0.001, HR: 2.501, 95% CI: 2.010 to 3.117), respectively. The circadian oscillations driven by CCRGs could disturb the metabolism and cellular functions of cancer cells. The infiltration level of critical cells in specific anti-tumor immunity process was suppressed apparently. In contrast, the infiltrating of inflammatory cells and immune cells with negative regulatory effects were promoted in the high-risk group. CCRGs were evolutionarily conserved with low mutation rates, which brought difficulties to explore therapeutic targets. Conclusion: We identified and validated a circadian rhythm signature to described clinical relevance and tumor microenvironment of NSCLC, which revealed that circadian rhythms might play an influential role in the NSCLC.
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Affiliation(s)
- Ming Li
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Zhencong Chen
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Tian Jiang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Xiaodong Yang
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University, Shanghai, 200433, People's Republic of China
| | - Yajing Du
- Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai 201508, People's Republic of China
| | - Jiaqi Liang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Lin Wang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Junjie Xi
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Miao Lin
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
| | - Mingxiang Feng
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, 200032, People's Republic of China
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Gao L, Shao T, Zheng W, Ding J. Curcumin suppresses tumor growth of gemcitabine-resistant non-small cell lung cancer by regulating lncRNA-MEG3 and PTEN signaling. Clin Transl Oncol 2021; 23:1386-1393. [PMID: 33566305 DOI: 10.1007/s12094-020-02531-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 11/20/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Lung cancer is one of the most aggressive malignancies and the efficacy of chemotherapy or concurrent chemoradiation is limited in clinical application. Curcumin has been reported to block cancer development by modulating multiple signaling pathways. However, whether curcumin can inhibit gemcitabine-resistant non-small cell lung cancer through regulation of lncRNA and the involved molecular mechanisms are rarely reported. MATERIALS AND METHODS MTT assay, clonogenic assay, apoptosis assay, qRT-PCR, Western blotting, immunohistochemistry, xenograft experiment were carried out in the present study. RESULTS The results showed that curcumin suppressed gemcitabine-resistant non-small cell lung cancer cell proliferation and induced apoptosis. Curcumin upregulated the expression of lncRNA-MEG3 and PTEN, and MEG3 overexpression could increase the level of PTEN expression, while MEG3 knockdown decreased the level of PTEN expression in gemcitabine-resistant non-small cell lung cancer cells. Curcumin treatment failed to inhibit the proliferation and induce apoptosis in MEG3 knockdown or PTEN knockdown cells. CONCLUSIONS These findings show the antitumor activity of curcumin for potential clinical application in gemcitabine-resistant non-small cell lung cancer treatment.
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Affiliation(s)
- L Gao
- Department of Integrated Traditional Chinese and Western Medicine, First Ward of Oncology, Hangzhou Cancer Hospital, No.34 Yanguan Street, Hangzhou, Zhejiang, 310000, People's Republic of China
| | - T Shao
- Department of Integrated Traditional Chinese and Western Medicine, First Ward of Oncology, Hangzhou Cancer Hospital, No.34 Yanguan Street, Hangzhou, Zhejiang, 310000, People's Republic of China
| | - W Zheng
- Department of Integrated Traditional Chinese and Western Medicine, First Ward of Oncology, Hangzhou Cancer Hospital, No.34 Yanguan Street, Hangzhou, Zhejiang, 310000, People's Republic of China
| | - J Ding
- Department of Integrated Traditional Chinese and Western Medicine, First Ward of Oncology, Hangzhou Cancer Hospital, No.34 Yanguan Street, Hangzhou, Zhejiang, 310000, People's Republic of China.
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LncRNA MEG3 control Mycobacterium Tuberculosis infection via controlled MiR-145-5p expression and modulation of macrophages proliferation. Microb Pathog 2020; 149:104550. [DOI: 10.1016/j.micpath.2020.104550] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 09/21/2020] [Accepted: 09/28/2020] [Indexed: 12/19/2022]
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Li MK, Liu LX, Zhang WY, Zhan HL, Chen RP, Feng JL, Wu LF. Long non‑coding RNA MEG3 suppresses epithelial‑to‑mesenchymal transition by inhibiting the PSAT1‑dependent GSK‑3β/Snail signaling pathway in esophageal squamous cell carcinoma. Oncol Rep 2020; 44:2130-2142. [PMID: 32901893 PMCID: PMC7550985 DOI: 10.3892/or.2020.7754] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 07/29/2020] [Indexed: 02/07/2023] Open
Abstract
Esophageal squamous cell carcinoma (ESCC) is the main subtype of esophageal cancer in China, and the prognosis of patients remains poor mainly due to the occurrence of lymph node and distant metastasis. The long non‑coding RNA (lncRNA) maternally expressed gene 3 (MEG3) has been shown to have tumor‑suppressive properties and to play an important role in epithelial‑to‑mesenchymal transition (EMT) in some solid tumors. However, whether MEG3 is involved in EMT in ESCC remains unclear. In the present study, the MEG3 expression level and its association with tumorigenesis were determined in 43 tumor tissues of patients with ESCC and in ESCC cells using reverse transcription‑quantitative PCR analysis. Gene microarray analysis was performed to detect differentially expressed genes (DEGs). Based on the functional annotation results, the effects of ectopic expression of MEG3 on cell growth, migration, invasion and EMT were assessed. MEG3 expression level was found to be markedly lower in tumor tissues and cells. Statistical analysis revealed that MEG3 expression was significantly negatively associated with lymph node metastasis and TNM stage in ESCC. Fluorescence in situ hybridization assay demonstrated that MEG3 was expressed mainly in the nucleus. Ectopic expression of MEG3 inhibited cell proliferation, migration, invasion and cell cycle progression in EC109 cells. Gene microarray results demonstrated that 177 genes were differentially expressed ≥2.0 fold in MEG3‑overexpressing cells, including 23 upregulated and 154 downregulated genes. Functional annotation revealed that the DEGs were mainly involved in amino acid biosynthetic process, mitogen‑activated protein kinase signaling, and serine and glycine metabolism. Further experiments indicated that the ectopic expression of MEG3 significantly suppressed cell proliferation, migration, invasion and EMT by downregulating phosphoserine aminotransferase 1 (PSAT1). In pathological tissues, PSAT1 and MEG3 were significantly negatively correlated, and high expression of PSAT1 predicted poor survival. Taken together, these results suggest that MEG3 may be a useful prognostic biomarker and may suppress EMT by inhibiting the PSAT1‑dependent glycogen synthase kinase‑3β/Snail signaling pathway in ESCC.
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Affiliation(s)
- Ming-Kai Li
- Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Li-Xuan Liu
- Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Wei-Yi Zhang
- Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Hao-Lian Zhan
- Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Rui-Pei Chen
- Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Jia-Lin Feng
- Department of Information, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
| | - Ling-Fei Wu
- Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong 515041, P.R. China
- Correspondence to: Professor Ling-Fei Wu, Department of Gastroenterology, Second Affiliated Hospital, Shantou University Medical College, 69 Dongxia Road, Shantou, Guangdong 515041, P.R. China, E-mail:
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Yang Z, Wang Z, Duan Y. LncRNA MEG3 inhibits non-small cell lung cancer via interaction with DKC1 protein. Oncol Lett 2020; 20:2183-2190. [PMID: 32782535 PMCID: PMC7400776 DOI: 10.3892/ol.2020.11770] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 05/19/2020] [Indexed: 12/17/2022] Open
Abstract
Long non-coding RNA (lncRNA) MEG3 is a key biomarker and therapeutic target in lung cancer; however, its underlying molecular mechanism in lung cancer progression remains unclear. The present study demonstrated a novel regulatory axis in lung cancer, lncRNA MEG3/dyskeratosis congenita 1 (DKC1), and further investigated the effects and molecular mechanism of lncRNA MEG3/DKC1 in lung cancer. RT-qPCR and western blot analysis were performed to determine gene and protein expression levels. The RNA immunoprecipitation assay was performed to verify binding between lncRNA MEG3 and DKC1. Flow cytometry analysis was performed to assess cell apoptosis, while the Cell Counting Kit-8 assay was performed to determine cell viability. Transwell and wound healing assays were performed to assess cell invasion and migration, respectively. Telomerase activity was measured using the quantitative TeloTAGGG Telomerase PCR-ELISA kit. The results demonstrated that lncRNA MEG3 was downregulated, while its binding protein, DKC1, was upregulated in lung cancer cells. Furthermore, lncRNA MEG3 inhibited cell proliferation, migration, invasion and telomerase activity in A549 cells by downregulating DKC1. lncRNA MEG3 inhibited non-small cell lung cancer progression by inhibiting telomere function, cell proliferation, telomerase activity, cell migration and invasion via regulation of the DKC1 protein expression. LncRNA MEG3/DKC1 was identified as a novel dual-directional regulatory axis in the present study, acting as a promising target for the treatment of lung cancer.
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Affiliation(s)
- Zhi Yang
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing 101149, P.R. China
| | - Zitong Wang
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing 101149, P.R. China
| | - Yong Duan
- Department of Thoracic Surgery, Beijing Chest Hospital, Capital Medical University, Beijing 101149, P.R. China
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Lin S, Zhen Y, Guan Y, Yi H. Roles of Wnt/β-Catenin Signaling Pathway Regulatory Long Non-Coding RNAs in the Pathogenesis of Non-Small Cell Lung Cancer. Cancer Manag Res 2020; 12:4181-4191. [PMID: 32581590 PMCID: PMC7280066 DOI: 10.2147/cmar.s241519] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Accepted: 04/26/2020] [Indexed: 12/12/2022] Open
Abstract
Lung cancer is one of the leading causes of cancer-related mortality worldwide. Non-small cell lung cancer (NSCLC) is the most common pathological type of lung cancer. Long non-coding RNAs (lncRNAs) are promising novel diagnostic and prognostic biomarkers, as well as potential therapeutic targets for lung cancer. Long non-coding RNAs (lncRNAs) have been demonstrated to modulate tumor cells proliferation, cell cycle progression, invasion, and metastasis by regulating gene expression at transcriptional, post-transcriptional, and epigenetic levels. The oncogenic aberrant Wnt/β-catenin signaling is prominent in lung cancer, playing a vital role in tumorigenesis, prognosis, and resistance to therapy. Interestingly, compelling studies have demonstrated that lncRNAs exert either oncogenic or tumor suppressor roles by regulating Wnt/β-catenin signaling. In this review, we aim to present the current accumulated knowledge regarding the roles of Wnt/β-catenin signaling-regulated lncRNAs in the pathogenesis of non-small cell lung cancer (NSCLC). Better understanding of the effects of lncRNAs on Wnt/β-catenin signaling might contribute to the improved understanding of the molecular tumor pathogenesis and to the uncovering of novel therapeutic targets in NSCLC.
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Affiliation(s)
- Shan Lin
- Central Laboratory, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China.,Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, Jilin 130021, People's Republic of China.,Department of Respiratory, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Yu Zhen
- Department of Dermatology, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Yinghui Guan
- Department of Respiratory, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China
| | - Huanfa Yi
- Central Laboratory, The First Hospital of Jilin University, Changchun, Jilin, People's Republic of China.,Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, Jilin 130021, People's Republic of China
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Poulet C, Njock MS, Moermans C, Louis E, Louis R, Malaise M, Guiot J. Exosomal Long Non-Coding RNAs in Lung Diseases. Int J Mol Sci 2020; 21:E3580. [PMID: 32438606 PMCID: PMC7279016 DOI: 10.3390/ijms21103580] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Within the non-coding genome landscape, long non-coding RNAs (lncRNAs) and their secretion within exosomes are a window that could further explain the regulation, the sustaining, and the spread of lung diseases. We present here a compilation of the current knowledge on lncRNAs commonly found in Chronic Obstructive Pulmonary Disease (COPD), asthma, Idiopathic Pulmonary Fibrosis (IPF), or lung cancers. We built interaction networks describing the mechanisms of action for COPD, asthma, and IPF, as well as private networks for H19, MALAT1, MEG3, FENDRR, CDKN2B-AS1, TUG1, HOTAIR, and GAS5 lncRNAs in lung cancers. We identified five signaling pathways targeted by these eight lncRNAs over the lung diseases mentioned above. These lncRNAs were involved in ten treatment resistances in lung cancers, with HOTAIR being itself described in seven resistances. Besides, five of them were previously described as promising biomarkers for the diagnosis and prognosis of asthma, COPD, and lung cancers. Additionally, we describe the exosomal-based studies on H19, MALAT1, HOTAIR, GAS5, UCA1, lnc-MMP2-2, GAPLINC, TBILA, AGAP2-AS1, and SOX2-OT. This review concludes on the need for additional studies describing the lncRNA mechanisms of action and confirming their potential as biomarkers, as well as their involvement in resistance to treatment, especially in non-cancerous lung diseases.
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Affiliation(s)
- Christophe Poulet
- Department of Rheumatology, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (M.-S.N.); (M.M.)
- Fibropôle Research Group, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (E.L.); (R.L.)
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
| | - Makon-Sébastien Njock
- Department of Rheumatology, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (M.-S.N.); (M.M.)
- Fibropôle Research Group, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (E.L.); (R.L.)
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
- Department of Respiratory Diseases, University Hospital of Liège (CHULiege), 4000 Liège, Belgium
| | - Catherine Moermans
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
- Department of Respiratory Diseases, University Hospital of Liège (CHULiege), 4000 Liège, Belgium
| | - Edouard Louis
- Fibropôle Research Group, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (E.L.); (R.L.)
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
- Department of Gastroenterology, University Hospital of Liège (CHULiege), 4000 Liège, Belgium
| | - Renaud Louis
- Fibropôle Research Group, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (E.L.); (R.L.)
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
- Department of Respiratory Diseases, University Hospital of Liège (CHULiege), 4000 Liège, Belgium
| | - Michel Malaise
- Department of Rheumatology, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (M.-S.N.); (M.M.)
- Fibropôle Research Group, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (E.L.); (R.L.)
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
| | - Julien Guiot
- Fibropôle Research Group, University Hospital of Liège (CHULiege), 4000 Liège, Belgium; (E.L.); (R.L.)
- GIGA-I3 Research Group, GIGA Institute, University of Liège (ULiege) and University Hospital of Liège (CHULiege), 4000 Liège, Belgium;
- Department of Respiratory Diseases, University Hospital of Liège (CHULiege), 4000 Liège, Belgium
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14
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Xiong T, Huang C, Li J, Yu S, Chen F, Zhang Z, Zhuang C, Li Y, Zhuang C, Huang X, Ye J, Zhang F, Gui Y. LncRNA NRON promotes the proliferation, metastasis and EMT process in bladder cancer. J Cancer 2020; 11:1751-1760. [PMID: 32194786 PMCID: PMC7052857 DOI: 10.7150/jca.37958] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 11/13/2019] [Indexed: 12/18/2022] Open
Abstract
Background: Bladder cancer (BC) is one of the most common malignancies world-wide with high morbidity and mortality. Long noncoding RNAs (lncRNAs) are thought to play a critical role in cancer development. LncRNA NRON, a repressor of activated T-cell nuclear factor (NFAT), has been shown to be dysregulated in many cancer types. However, the clinical significance and molecular mechanism of NRON in bladder cancer is still unknown. Methods: The expression levels of NRON in BC tissues and cell lines were tested by RT-qPCR. Survival analysis was performed to detect the correlation between NRON expression and clinical outcomes in patients with BC. The biological role of NRON in BC cells proliferation and metastasis was examined in vitro and in vivo. Results: The expression of NRON was significantly upregulated in BC specimens and cell lines compared with paired adjacent normal tissues and normal cell lines. The upregulation of NRON in bladder cancer patients was significantly associated with the depth of bladder tumor invasion and poor prognosis. Knockdown of NRON inhibited BC cells proliferation, migration, invasion and tumorigenicity. Furthermore, NRON promoted epithelial-mesenchymal transition (EMT) progression, and NRON-induced EZH2 expression contributed to this process. Conclusion: In conclusion, our results suggested that NRON acted as an oncogene and tumor biomarker for BC.
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Affiliation(s)
- Tiefu Xiong
- Graduate School, Guangzhou Medical University, Guangzhou 510182, China.,Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Chenchen Huang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China.,Anhui Medical University, Hefei 230000, Anhui Province, China
| | - Jianfa Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Shaokang Yu
- Department of Oncology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Fangfang Chen
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Zeng Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Chengle Zhuang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Yawen Li
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Changshui Zhuang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Xinbo Huang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Jing Ye
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Fangting Zhang
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - Yaoting Gui
- Guangdong and Shenzhen Key Laboratory of Male Reproductive Medicine and Genetics, Institute of Urology, Peking University Shenzhen Hospital, Shenzhen 518036, China
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15
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Li K, Wang X, Huang Z, Xu H, Zheng S, Qiu Y. Retracted Article: Long non-coding RNA MEG3 inhibits cell proliferation, migration, invasion and enhances apoptosis in non-small cell lung cancer cells by regulating the miR-31-5p/TIMP3 axis. RSC Adv 2019; 9:38200-38208. [PMID: 35541776 PMCID: PMC9075888 DOI: 10.1039/c9ra07880k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 06/05/2020] [Accepted: 11/18/2019] [Indexed: 12/16/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is a malignant lung cancer and accounts for 80% of lung cancer-related deaths. Long non-coding RNA maternally expressed gene 3 (MEG3) has been identified as a tumor suppressor in multiple cancers. However, the regulatory mechanism of MEG3 in NSCLC development is still largely unknown. The expression levels of MEG3, microRNA-31-5p (miR-31-5p) and tissue inhibitor of metalloproteinase 3 (TIMP3) in NSCLC tumors and cells were measured by quantitative real time polymerase chain reaction (qRT-PCR). Cell viability, apoptosis, migration and invasion were detected by cell counting kit-8 (CCK-8), flow cytometry, western blotting and transwell assays, respectively. Xenograft mouse models were established by subcutaneously injecting NSCLC cells stably transfected with Lenti-pcDNA or Lenti-MEG3. The interaction between miR-31-5p and MEG3 or TIMP3 was validated by luciferase reporter and RNA immunoprecipitation (RIP) assays. MEG3 and TIMP3 levels were up-regulated, whereas miR-31-5p expression was down-regulated in NSCLC tumors and cells compared with normal tissues and cells. Overexpression of MEG3 repressed cell proliferation, migration and invasion, but induced apoptosis in NSCLC cells. More importantly, MEG3 effectively hindered tumor growth in vivo. Next, luciferase reporter and RIP assays confirmed the interaction between miR-31-5p and MEG3 or TIMP3. Pearson's correlation coefficient revealed that miR-31-5p was inversely correlated with MEG3 or TIMP3. Rescue experiments indicated that MEG3 regulated TIMP3 expression by sponging miR-31-5p in NSCLC cells. Thus, MEG3 inhibited cell proliferation, migration and invasion, but enhanced apoptosis in NSCLC cells through up-regulating TIMP3 expression by regulating miR-31-5p, indicating novel biomarkers for the therapy of NSCLC. Non-small cell lung cancer (NSCLC) is a malignant lung cancer and accounts for 80% of lung cancer-related deaths.![]()
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Affiliation(s)
- Kui Li
- Department of Translational Medicine Research Institute, Guangzhou Huayin Medical Laboratory Center. Ltd The Second Floor of Life Sciences Building of Southern Medical University No. 1838, North Guangzhou Street Guangzhou Guangdong China +86-18520035749.,Technical Service Department, Guangzhou Huayin Medical Institute. Ltd Guangzhou Guangdong China
| | - Xiaodan Wang
- Department of Translational Medicine Research Institute, Guangzhou Huayin Medical Laboratory Center. Ltd The Second Floor of Life Sciences Building of Southern Medical University No. 1838, North Guangzhou Street Guangzhou Guangdong China +86-18520035749
| | - Zhen Huang
- Department of Translational Medicine Research Institute, Guangzhou Huayin Medical Laboratory Center. Ltd The Second Floor of Life Sciences Building of Southern Medical University No. 1838, North Guangzhou Street Guangzhou Guangdong China +86-18520035749
| | - Hui Xu
- Technical Service Department, Guangzhou Huayin Medical Institute. Ltd Guangzhou Guangdong China
| | - Songbai Zheng
- Department of Translational Medicine Research Institute, Guangzhou Huayin Medical Laboratory Center. Ltd The Second Floor of Life Sciences Building of Southern Medical University No. 1838, North Guangzhou Street Guangzhou Guangdong China +86-18520035749
| | - Yurong Qiu
- Department of Translational Medicine Research Institute, Guangzhou Huayin Medical Laboratory Center. Ltd The Second Floor of Life Sciences Building of Southern Medical University No. 1838, North Guangzhou Street Guangzhou Guangdong China +86-18520035749
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16
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Pu Z, Wu L, Guo Y, Li G, Xiang M, Liu L, Zhan H, Zhou X, Tan H. LncRNA MEG3 contributes to adenosine-induced cytotoxicity in hepatoma HepG2 cells by downregulated ILF3 and autophagy inhibition via regulation PI3K-AKT-mTOR and beclin-1 signaling pathway. J Cell Biochem 2019; 120:18172-18185. [PMID: 31144362 DOI: 10.1002/jcb.29123] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 02/05/2023]
Abstract
Adenosine is a promising cytotoxic reagent for tumors, long noncoding RNA (lncRNA) maternally expressed gene 3 (MEG3) has been indicated to play critical roles in tumorigenesis, ILF3 has been recognized as a MEG3-binding protein, however, the roles of adenosine and MEG3 on hepatoma are still ambiguous. To clarify the effects of MEG3 on the adenosine-induced cytotoxicity in hepatoma, MEG3 and ILF3 lentivirus were transduced into human hepatoma HepG2 cells to stimulate overexpression of MEG3 (OE MEG3) and overexpression of ILF3 (OE ILF3), furthermore, ILF3 small interfering RNA (siRNA) was also applied to downregulate the expression of ILF3. In this study, autophagy was markedly inhibited by low concentration of adenosine, which present by not only inhibited transformation from LC3-I to LC3-II and autophagosomes formation, but also the elevation of mTOR and reduction of beclin-1 proteins. Furthermore, low concentration of adenosine also exerted marked cytotoxicity representing induced cell apoptosis together with reductions of cell viability and migration, which were also markedly enhanced by OE MEG3. Novelly and excitingly, adenosine markedly stimulated MEG3 expression, OE MEG3 markedly decreased the ILF3 expression in HepG2 cells, and the adenosine-induced autophagy inhibition, together with the ratio of p-PI3K/PI3K, p-AKT/AKT, and p-mTOR/mTOR were also boosted by OE MEG3. More interestingly, OE ILF3 increased autophagy, whereas downregulated ILF3, especially in the case of adenosine, led to marked autophagy inhibition by decreasing beclin-1. The present study demonstrates autophagy inhibition is involved in the adenosine-induced cytotoxicity in HepG2 cells, the cytotoxicity can be synergized by OE MEG3 via downregulated ILF3 to activate PI3K/Akt/mTOR and inactivate the beclin-1 signaling pathway. In conclusion, MEG3 and inhibition of autophagy might be potential targets for augmenting adenosine-induced cytotoxicity in hepatoma.
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Affiliation(s)
- Zejin Pu
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Lingfei Wu
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Yitian Guo
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Guoping Li
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Mengqi Xiang
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Lixuan Liu
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Haolian Zhan
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Xiaotao Zhou
- Department of Gastroenterology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Hui Tan
- Department of Radiology, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
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17
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Wang W, Xie Y, Chen F, Liu X, Zhong LL, Wang HQ, Li QC. LncRNA MEG3 acts a biomarker and regulates cell functions by targeting ADAR1 in colorectal cancer. World J Gastroenterol 2019; 25:3972-3984. [PMID: 31413531 PMCID: PMC6689807 DOI: 10.3748/wjg.v25.i29.3972] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/07/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is the third most prevalent malignancy and has the fourth highest global cancer mortality rate. Early diagnosis and prompt medical attention can improve quality of life and the prognosis of CRC patients. Accumulating evidence reveals that long non-coding RNAs (lncRNAs) function as oncogenes or anti-oncogenes, as well as biomarkers in various cancers.
AIM To investigate the levels and molecular mechanism of the lncRNA maternally expressed gene 3 (MEG3) in CRC.
METHODS The levels of lncRNA MEG3 in CRC tissue, serum and cell line samples were explored via qRT-PCR. The relationship between MEG3 levels and clinicopathological features in CRC was investigated. The diagnostic and prognostic values of serum MEG3 levels were analyzed with ROC curves and Kaplan‑Meier survival curves, respectively.
RESULTS Significant decreased levels of MEG3 existed in CRC tissue, cell lines and serum. CRC patients with down-regulated serum MEG3 levels had larger tumor sizes, and advanced clinical stages. The sensitivity and specificity of serum MEG3 levels in CRC detection was 0.667 and 0.875, respectively. Tumor size, T stages, and serum MEG3 levels are indie factors that produce an effect on CRC patients' prognosis. Kaplan‑Meier survival curves suggested that CRC patients with high levels of MEG3 had a remarkably better overall survival rate.
CONCLUSION LncRNA MEG3 is down-regulated in CRC, and regulates cell functions by targeting adenosine deaminase’s effect on RNA 1 in CRC.
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Affiliation(s)
- Wei Wang
- College of Basic Medical Sciences, China medical University and Department of Pathology, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
- Teaching and Research Department of Pathology, Basic Medical College, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, Heilongjiang Province, China
| | - Ying Xie
- Department of Synopsis of The Golden Chamber, School of Basic Medical Sciences, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, Heilongjiang Province, China
| | - Fei Chen
- Department of Synopsis of The Golden Chamber, School of Basic Medical Sciences, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, Heilongjiang Province, China
| | - Xu Liu
- Experiment and Training Center, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, Heilongjiang Province, China
| | - Li-Li Zhong
- Department of Pathology, the First Clinical Medical College, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, Heilongjiang Province, China
| | - Hai-Qiang Wang
- Department of Gastroenterology, the First Clinical Medical College, Heilongjiang University of Traditional Chinese Medicine, Harbin 150040, Heilongjiang Province, China
| | - Qing-Chang Li
- College of Basic Medical Sciences, China medical University and Department of Pathology, the First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
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18
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Zhou W, Liu T, Saren G, Liao L, Fang W, Zhao H. Comprehensive analysis of differentially expressed long non-coding RNAs in non-small cell lung cancer. Oncol Lett 2019; 18:1145-1156. [PMID: 31423174 PMCID: PMC6607379 DOI: 10.3892/ol.2019.10414] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 04/17/2019] [Indexed: 12/20/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) is the primary subtype of lung cancer. Long non-coding RNAs (lncRNAs) have been reported to serve prominent roles in cancer progression. However, the expression patterns and potential roles of lncRNAs in NSCLC remain to be elucidated. In the present study, four public datasets were analyzed to identify differentially expressed lncRNAs (DElncs) in NSCLC. A further dataset, GSE19188, was analyzed to validate the findings. A total of 38 upregulated and 31 downregulated lncRNAs were identified in NSCLC, compared with samples from healthy controls. Among these, 12 lncRNAs were associated with the progression of NSCLC, and dysregulated between high grade (stage III and IV) and low grade (stage II) NSCLC samples. Moreover, dysregulation of lncRNA-SIGLEC17P, GGTA1P, A2M-AS1, LINC00938, GVINP1, LINC00667 and TMPO-AS1 was associated with overall survival time in patients with NSCLC. Co-expression analyses, combined with the construction of protein-protein interaction networks, were performed to reveal the potential roles of key lncRNAs in NSCLC. The present study revealed a series of lncRNAs involved in the progression of NSCLS, which may serve as novel biomarkers for the disease.
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Affiliation(s)
- Wenyong Zhou
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Tao Liu
- Department of Oncology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Gaowa Saren
- Department of Intensive Care, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Li Liao
- Department of Oncology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Wentao Fang
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
| | - Heng Zhao
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, P.R. China
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19
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Lu T, Wang Y, Chen D, Liu J, Jiao W. Potential clinical application of lncRNAs in non-small cell lung cancer. Onco Targets Ther 2018; 11:8045-8052. [PMID: 30519046 PMCID: PMC6239124 DOI: 10.2147/ott.s178431] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Lung cancer has been identified as one of the most prevalent and deadly tumors worldwide. In recent years, lncRNAs have been demonstrated to play a significant role in the development of lung cancer. Specifically, lncRNAs act as a regulator of cancer-critical genes, and they regulate the biological behavior of tumors at the transcriptional and posttranscriptional levels. Recent studies have shown that lncRNAs possess great potential in the treatment of non-small cell lung cancer patients because of their roles in diverse cellular processes, such as proliferation, metastasis, stem cell maintenance, and epithelial to mesenchymal transition, and they serve as signaling biomarkers. Compared to other invasive diagnostic methods, detection of lncRNAs may become a very useful noninvasive methodology. Moreover, lncRNAs can serve as potential therapeutic targets in non-small cell lung cancer due to their roles in regulating many signaling pathways associated with lung carcinoma. In this review, we discuss the roles and expression profile of lncRNAs. We also discuss the promising application of lncRNAs as predictors of clinical diagnosis, prognosis, and as potential therapeutic targets, aiming to demonstrate their practical value for clinical treatment.
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Affiliation(s)
- Tong Lu
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China,
| | - Yuanyong Wang
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China,
| | - Di Chen
- Department of Gastroenterology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jia Liu
- School of Pharmacy, Qingdao University, Qingdao, China,
| | - Wenjie Jiao
- Department of Thoracic Surgery, Affiliated Hospital of Qingdao University, Qingdao, China,
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20
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Guo T, Li J, Zhang L, Hou W, Wang R, Zhang J, Gao P. Multidimensional communication of microRNAs and long non-coding RNAs in lung cancer. J Cancer Res Clin Oncol 2018; 145:31-48. [PMID: 30417217 DOI: 10.1007/s00432-018-2767-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 10/06/2018] [Indexed: 12/26/2022]
Abstract
PURPOSE Non-coding RNAs (ncRNAs) have been a hot topic for many years in the field of cancer research, especially miRNAs and lncRNAs. Because they play critical roles in regulating various cellular processes and are more often involved in tumorigenesis than protein-coding genes. But the cross talk between miRNAs and lncRNAs in cancer has been scarcely studied. This article aims to provide a retrospective review of the latest research on the link between miRNAs and lncRNAs in lung cancer and discusses their potential role as diagnostic biomarkers and therapeutic targets for lung cancer in clinical practice. METHODS We reviewed literatures about ncRNAs and lung cancer from PUBMED databases in this article. RESULTS As shown in our review, miRNAs and lncRNAs could represent underlying targets for diagnosis, therapy, prognosis, and drug resistence of lung cancer. By acting as ceRNAs, lncRNAs can competitively inhibit the expression levels of miRNAs, and the lncRNA/miRNA axis can contribute to tumorigenesis, metastasis, and mutidrug resistance in lung cancer via various classic signaling pathways or related proteins. CONCLUSION Based on present knowledge, ncRNAs may provide a novel perspective to understand the pathogenesis of lung cancer and could be candidates in screening of therapeutic targets for lung cancer.
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Affiliation(s)
- Tingting Guo
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China
| | - Junyao Li
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China
| | - Lin Zhang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China
| | - Wei Hou
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China
| | - Rongrong Wang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China
| | - Jie Zhang
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China.
| | - Peng Gao
- Department of Respiratory Medicine, The Second Hospital of Jilin University, 218 Ziqiang Street, Nanguan District, Changchun, 130041, Jilin, P.R. China.
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21
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Long non-coding RNA MEG3 regulates proliferation, apoptosis, and autophagy and is associated with prognosis in glioma. J Neurooncol 2018; 140:281-288. [DOI: 10.1007/s11060-018-2874-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 04/15/2018] [Indexed: 12/16/2022]
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22
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Song J, Ye A, Jiang E, Yin X, Chen Z, Bai G, Zhou Y, Liu J. Reconstruction and analysis of the aberrant lncRNA-miRNA-mRNA network based on competitive endogenous RNA in CESC. J Cell Biochem 2018; 119:6665-6673. [PMID: 29741786 PMCID: PMC6055788 DOI: 10.1002/jcb.26850] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Accepted: 03/09/2018] [Indexed: 12/30/2022]
Abstract
A growing body of studies has demonstrated that long non-coding RNA (lncRNA) are regarded as the primary section of the ceRNA network. This is thought to be the case owing to its regulation of protein-coding gene expression by functioning as miRNA sponges. However, functional roles and regulatory mechanisms of lncRNA-mediated ceRNA in cervical squamous cell carcinoma (CESC), as well as their use for potential prediction of CESC prognosis, remains unknown. The aberrant expression profiles of mRNA, lncRNA, and miRNA of 306 cervical squamous cancer tissues and three adjacent cervical tissues were obtained from the TCGA database. A lncRNA-mRNA-miRNA ceRNA network in CESC was constructed. Meanwhile, Gene Ontology (GO) and KEGG pathway analysis were performed using Cytoscape plug-in BinGo and DAVID database. We identified a total of 493 lncRNA, 70 miRNA, and 1921 mRNA as differentially expressed profiles. An aberrant lncRNA-mRNA-miRNA ceRNA network was constructed in CESC, it was composed of 50 DElncRNA, 18 DEmiRNA, and 81 DEmRNA. According to the overall survival analysis, 3 out of 50 lncRNA, 10 out of 81 mRNA, and 1 out of 18 miRNA functioned as prognostic biomarkers for patients with CESC (P value < 0.05). We extracted the sub-network in the ceRNA network and found that two novel lncRNA were recognized as key genes. These included lncRNA MEG3 and lncRNA ADAMTS9-AS2. The present study provides a new insight into a better understanding of the lncRNA-related ceRNA network in CESC, and the novel recognized ceRNA network will help us to improve our understanding of lncRNA-mediated ceRNA regulatory mechanisms in the pathogenesis of CESC.
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Affiliation(s)
- Jukun Song
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, China
| | - Aizhu Ye
- Department of Clinical Laboratory, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, China
| | - Enli Jiang
- Department of Obstetrics and Gynecology, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, China
| | - Xinhai Yin
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, China
| | - Zhu Chen
- Guiyang Hospital of Stomatology, Medical College, Zunyi Medical College, Guiyang, China
| | - Guohui Bai
- Special Key Laboratory of Oral Diseases Research, Stomatological Hospital Affiliated to Zunyi Medical College, Zunyi, Guizhou Province, China
| | - Yu Zhou
- Department of Oral and Maxillofacial Surgery, Guizhou Provincial People's Hospital, Guiyang, Guizhou Province, China
| | - Jianguo Liu
- Special Key Laboratory of Oral Diseases Research, Stomatological Hospital Affiliated to Zunyi Medical College, Zunyi, Guizhou Province, China
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23
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Zhang Y, Mo WJ, Wang X, Zhang TT, Qin Y, Wang HL, Chen G, Wei DM, Dang YW. Microarray‑based bioinformatics analysis of the prospective target gene network of key miRNAs influenced by long non‑coding RNA PVT1 in HCC. Oncol Rep 2018; 40:226-240. [PMID: 29749550 PMCID: PMC6059745 DOI: 10.3892/or.2018.6410] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 04/17/2018] [Indexed: 12/12/2022] Open
Abstract
The long non-coding RNA (lncRNA) PVT1 plays vital roles in the tumorigenesis and development of various types of cancer. However, the potential expression profiling, functions and pathways of PVT1 in HCC remain unknown. PVT1 was knocked down in SMMC-7721 cells, and a miRNA microarray analysis was performed to detect the differentially expressed miRNAs. Twelve target prediction algorithms were used to predict the underlying targets of these differentially expressed miRNAs. Bioinformatics analysis was performed to explore the underlying functions, pathways and networks of the targeted genes. Furthermore, the relationship between PVT1 and the clinical parameters in HCC was confirmed based on the original data in the TCGA database. Among the differentially expressed miRNAs, the top two upregulated and downregulated miRNAs were selected for further analysis based on the false discovery rate (FDR), fold-change (FC) and P-values. Based on the TCGA database, PVT1 was obviously highly expressed in HCC, and a statistically higher PVT1 expression was found for sex (male), ethnicity (Asian) and pathological grade (G3+G4) compared to the control groups (P<0.05). Furthermore, Gene Ontology (GO) analysis revealed that the target genes were involved in complex cellular pathways, such as the macromolecule biosynthetic process, compound metabolic process, and transcription. Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis revealed that the MAPK and Wnt signaling pathways may be correlated with the regulation of the four candidate miRNAs. The results therefore provide significant information on the differentially expressed miRNAs associated with PVT1 in HCC, and we hypothesized that PVT1 may play vital roles in HCC by regulating different miRNAs or target gene expression (particularly MAPK8) via the MAPK or Wnt signaling pathways. Thus, further investigation of the molecular mechanism of PVT1 in HCC is needed.
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Affiliation(s)
- Yu Zhang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Wei-Jia Mo
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Xiao Wang
- Department of Orthopedics, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, Shandong 250012, P.R. China
| | - Tong-Tong Zhang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yuan Qin
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Han-Lin Wang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Gang Chen
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Dan-Ming Wei
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
| | - Yi-Wu Dang
- Department of Pathology, First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region 530021, P.R. China
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