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Gong S, Zhang Y, Pang L, Wang L, He W. A novel CircRNA Circ_0001722 regulates proliferation and invasion of osteosarcoma cells through targeting miR-204-5p/RUNX2 axis. J Cancer Res Clin Oncol 2023; 149:12779-12790. [PMID: 37453970 PMCID: PMC10587032 DOI: 10.1007/s00432-023-05166-3] [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: 04/27/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
BACKGROUND Osteosarcoma (OS) is the most prevalent primary fatal bone neoplasm in adolescents and children owing to limited therapeutic methods. Circular RNAs (circRNAs) are identified as vital regulators in a variety of cancers. However, the roles of circRNAs in OS are still unclear. METHODS Firstly, we evaluate the differentially expressed circRNAs in 3 paired OS and corresponding adjacent nontumor tissue samples by circRNA microarray assay, finding a novel circRNA, circ_001722, significantly upregulated in OS tissues and cells. The circular structure of candidate circRNA was confirmed through Sanger sequencing, divergent primer PCR, and RNase R treatments. Proliferation of OS cells was evaluated in vitro and in vivo. The microRNA (miRNA) sponge mechanism of circRNAs was verified by dual-luciferase assay and RNA immunoprecipitation assay. RESULTS A novel circRNA, circ_001722, is significantly upregulated in OS tissues and cells. Downregulation of circ_0001722 can suppress proliferation and invasion of human OS cells in vitro and in vivo. Computational algorithms predict miR-204-5p can bind with circ_0001722 and RUNX2 mRNA 3'UTR, which is verified by Dual-luciferase assay and RNA immunoprecipitation assay. Further functional experiments show that circ_0001722 competitively binds to miR-204-5p and prevents it to decrease the level of RUNX2, which upregulates proliferation and invasion of human OS cells. CONCLUSION Circ_001722 is a novel tumor promotor in OS, and promotes the progression of OS via miR-204-5p/RUNX2 axis.
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Affiliation(s)
- Shuai Gong
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 of Jianshe Road, Er-Qi District, Zhengzhou City, 450052 Henan Province China
| | - Yi Zhang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052 Henan Province China
| | - Lina Pang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 of Jianshe Road, Er-Qi District, Zhengzhou City, 450052 Henan Province China
| | - Liye Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 of Jianshe Road, Er-Qi District, Zhengzhou City, 450052 Henan Province China
| | - Wei He
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, No. 1 of Jianshe Road, Er-Qi District, Zhengzhou City, 450052 Henan Province China
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Arslan A, Batar B, Temiz E, Tozkir H, Koyuncu I, Bozgeyik E. Silencing of TP73-AS1 impairs prostate cancer cell proliferation and induces apoptosis via regulation of TP73. Mol Biol Rep 2022; 49:6859-6869. [PMID: 35138524 DOI: 10.1007/s11033-022-07141-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/11/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Prostate cancer is a malignant disease that severely affects the health and comfort of the male population. The long non-coding RNA TP73-AS1 has been shown to be involved in the malignant transformation of various human cancers. However, whether TP73-AS1 contributes to prostate cancer progression has not been reported yet. Accordingly, here we aimed to report the role of TP73-AS1 in the development and progression of prostate cancer and determine its relationship with TP73. METHODS AND RESULTS TP73-AS1-specific siRNA oligo duplexes were used to silence TP73-AS1 in DU-145 and PC-3 cells. Results indicated that TP73-AS1 was upregulated whereas TP73 was downregulated in prostate cancer cells compared to normal prostate cells and there was a negative correlation between them. Besides, loss of function experiments of TP73-AS1 in prostate cancer cells strongly induced cellular apoptosis, interfered with the cell cycle progression, and modulated related pro- and anti-apoptotic gene expression. Colony formation and migration capacities of TP73-AS1-silenced prostate cancer cells were also found to be dramatically reduced. CONCLUSIONS Our findings provide novel evidence that suggests a chief regulatory role for the TP73-TP73-AS1 axis in prostate cancer development and progression, suggesting that the TP73/TP73-AS1 axis can be a promising diagnostic and therapeutic target for prostate cancer.
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Affiliation(s)
- Ahmet Arslan
- Department of Medical Genetics, Medical Faculty of Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Bahadir Batar
- Department of Medical Biology, Medical Faculty of Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Ebru Temiz
- Program of Medical Promotion and Marketing, Vocational School of Health Services, Harran University, Sanliurfa, Turkey
| | - Hilmi Tozkir
- Department of Medical Genetics, Medical Faculty of Tekirdag Namik Kemal University, Tekirdag, Turkey
| | - Ismail Koyuncu
- Department of Medical Biochemistry, Faculty of Medicine, Harran University, Sanliurfa, Turkey
| | - Esra Bozgeyik
- Department of Medical Services and Techniques, Vocational School of Health Services, Adiyaman University, Adiyaman, Turkey.
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Chen C, Wang J, Feng Y, Liang Y, Huang Y, Zou W. TP73-AS1 as a predictor of clinicopathological parameters and prognosis in human malignancies: a meta and bioinformatics analysis. BMC Cancer 2022; 22:581. [PMID: 35614413 PMCID: PMC9134685 DOI: 10.1186/s12885-022-09658-2] [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] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 05/11/2022] [Indexed: 11/28/2022] Open
Abstract
Background Long non-coding RNA P73 antisense RNA 1 T (non-protein coding), also known as Lnc RNA TP73-AS1, is dysregulated in various tumors but the correlation between its expression and clinicopathological parameters and/or prognoses in cancer patients is inconclusive. Here, we performed a meta-analysis to evaluate the prognostic value of Lnc RNA TP73-AS1 for malignancies. Methods We systematically searched four online databases including PubMed, the Web of Science, Embase, and the Cochrane Library for eligible articles published up to June 29/2020. Odds ratios (ORs) and Pooled hazard ratios (HRs) with 95% confidence intervals (95% CIs) were used to assess the association of TP73-AS1 expression with prognostic and clinicopathological parameters. We further validated TP73-AS1 expression in various malignancies and its potential prognostic value using the GEPIA online database. We predicted potential biological processes and relevant signal mechanisms through the public databases. Results A total of 26 studies examining 14 cancers were analyzed to evaluate the relationship between TP73-AS1 expression, clinicopathological features and prognostic indicators. The results indicated that TP73-AS1 expression markedly correlates with TNM stage (OR = 3.27,95% CI:2.43–4.39, P < 0.00001), tumor size (OR = 3.00, 95%CI:2.08–4.35, P < 0.00001), lymph node metastasis (OR = 2.77, 95%CI:1.42–5.38,P < 0.00001) and distant metastasis (OR = 4.50,95%CI:2. 62–7.73,P < 0.00001). No correlation with age (OR = 1.12,95%CI:0.77–1.64, P > 0.05), gender (OR = 1.08, 95%CI:0.84–1.38, P > 0.05) or differentiation (OR = 1.39, 95%CI:0.71–2.70, P = 0.340) was observed. TP73-AS1 overexpression was a biomarker of poor Overall survival(OS)(HR = 1.85,95%CI:1.53–2.22, P < 0.00001) and Disease-Free-Survival (DFS) (HR = 1.57,95%CI:1.03–2.42, P < 0.05). Dysregulated TP73-AS1 expression and its prognostic value in various cancers was validated based on The Cancer Genome Atlas (TCGA). Further biological function predictions indicated that TP73-AS1 was involved in pro-oncogenic signaling. Conclusions The upregulation of Lnc RNA TP73-AS1 was related to detrimental clinicopathological parameters and can be considered an indicator of poor prognosis for cancer malignancies.
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Affiliation(s)
- Caizhi Chen
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Jingjing Wang
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Yeqian Feng
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Ye Liang
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Yan Huang
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Wen Zou
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China.
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Investigation of the expression level of long non-coding RNAs in dental follicles of impacted mandibular third molars. Clin Oral Investig 2022; 26:2817-2825. [PMID: 34988693 DOI: 10.1007/s00784-021-04259-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 10/23/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVES Dental follicle (DF) is made up of mesenchymal cells and fibers surrounding the enamel organ of a developing tooth. It has been shown that cystic and neoplastic lesions can develop from the pericoronal follicles of impacted third molars (ITMs). But the molecular transformation of DF tissues has not yet been uncovered and remains elusive. Accordingly, in the present study, we aimed to investigate the differential expression of lncRNA genes in DF tissues associated with asymptomatic impacted mandibular third molars (IMTMs) that do not show pathological pericoronal radiolucency in radiographic examination. MATERIAL AND METHODS A total of 30 patients with unilateral mesioangular IMTMs were enrolled for the study. The expressions of lncRNA genes were determined in the DF and healthy gingival tissues obtained from study patients. For the determination of lncRNA expression levels, RNA was isolated from the obtained tissues, converted to cDNA samples, and analyzed by quantitative real-time PCR method. RESULTS As a result, we found that the gene expression of MEG3 was increased about 10-fold in DF tissues compared to healthy gingival tissues (p < 0.0001). In addition, NORAD expression was found to be upregulated 4.2-fold (p = 0.0002) in DF tissues. Also, expression level of MALAT1 was found to be decreased 1.24-fold (p = 0.584) and TP73-AS1 increased 2.6-fold (p = 0.093) in DF tissues compared to healthy gingival tissues. CONCLUSIONS Consequently, present findings suggest that differentially expressed lncRNAs in DFs might be associated with the various levels of cellular events including osteogenic differentiation, DNA damage, and the transformation into odontogenic pathology. CLINICAL RELEVANCE Expression levels of MEG3 and NORAD lncRNA molecules may guide clinicians in the evaluation of asymptomatic ITM dental follicles that cannot be determined radiologically and during extraction of these teeth for prophylactic purposes.
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Mi Z, Dong Y, Wang Z, Ye P. Biomarker potential of lncRNA GNAS-AS1 in osteosarcoma prognosis and effect on cellular function. J Orthop Surg Res 2021; 16:470. [PMID: 34321018 PMCID: PMC8317387 DOI: 10.1186/s13018-021-02611-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/12/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Osteosarcoma (OS) is a type of bone cancer that occurs in children and adolescents at a rate of 5%. The purpose of this study is to explore the lncRNA GNAS-AS1 expression profile, prognosis significance in OS, and biological effect on OS cell function. METHODS One hundred eight pairs of tissues were collected, and OS cell lines were purchased. lncRNA GNAS-AS1 expression in these tissues and cells were analyzed by qRT-PCR. Clinical data were analyzed using chi-square tests, Kaplan-Meier curves (log-rank test), and Cox regression. CCK-8 and transwell assay were conducted to analyze the effect of lncRNA GNAS-AS1 on cell proliferation, invasion, and migration. The downstream miRNA was presumed. RESULTS The expression of lncRNA GNAS-AS1 was significantly increased in OS cells and tissues, and related to Enneking staging and distant metastasis. Patients with high lncRNA GNAS-AS1 expression represented shorter overall survival and was an independent prognostic predictor of OS. LncRNA GNAS-AS1 knockdown inhibited cell proliferation, migration, and invasion by regulated miR-490-3p partly at least. CONCLUSIONS LncRNA GNAS-AS1 can be used as a prognostic indicator and its inhibition suppress the development of OS, suggesting its value as novel therapeutic strategies in OS.
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Affiliation(s)
- Zhanhu Mi
- Department of Trauma Orthopedics, General Hospital of Ningxia Medical University, 804 South Shengli Street, Yinchuan, Ningxia, 750004, People's Republic of China
| | - Yanyun Dong
- Operating Room, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, 750004, People's Republic of China
| | - Zhibiao Wang
- Department of Orthopedics, Rizhao Central Hospital, Rizhao, Shandong, 276000, People's Republic of China
| | - Peng Ye
- Department of Trauma Orthopedics, General Hospital of Ningxia Medical University, 804 South Shengli Street, Yinchuan, Ningxia, 750004, People's Republic of China.
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Yang B, Li L, Tong G, Zeng Z, Tan J, Su Z, Liu Z, Lin J, Gao W, Chen J, Zeng S, Wu G, Li L, Zhu S, Liu Q, Lin L. Circular RNA circ_001422 promotes the progression and metastasis of osteosarcoma via the miR-195-5p/FGF2/PI3K/Akt axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:235. [PMID: 34271943 PMCID: PMC8283840 DOI: 10.1186/s13046-021-02027-0] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/23/2021] [Indexed: 01/01/2023]
Abstract
Background Circular RNAs (circRNAs) are involved in diverse processes that drive cancer development. However, the expression landscape and mechanistic function of circRNAs in osteosarcoma (OS) remain to be studied. Methods Bioinformatic analysis and high-throughput RNA sequencing tools were employed to identify differentially expressed circRNAs between OS and adjacent noncancerous tissues. The expression level of circ_001422 in clinical specimens and cell lines was measured using qRT-PCR. The association of circ_001422 expression with the clinicopathologic features of 55 recruited patients with OS was analyzed. Loss- and gain-of-function experiments were conducted to explore the role of circ_001422 in OS cells. RNA immunoprecipitation, fluorescence in situ hybridization, bioinformatics database analysis, RNA pulldown assays, dual-luciferase reporter assays, mRNA sequencing, and rescue experiments were conducted to decipher the competitive endogenous RNA regulatory network controlled by circ_001422. Results We characterized a novel and abundant circRNA, circ_001422, that promoted OS progression. Circ_001422 expression was dramatically increased in OS cell lines and tissues compared with noncancerous samples. Higher circ_001422 expression correlated with more advanced clinical stage, larger tumor size, higher incidence of distant metastases and poorer overall survival in OS patients. Circ_001422 knockdown markedly repressed the proliferation and metastasis and promoted the apoptosis of OS cells in vivo and in vitro, whereas circ_001422 overexpression exerted the opposite effects. Mechanistically, competitive interactions between circ_001422 and miR-195-5p elevated FGF2 expression while also initiating PI3K/Akt signaling. These events enhanced the malignant characteristics of OS cells. Conclusions Circ_001422 accelerates OS tumorigenesis and metastasis by modulating the miR-195-5p/FGF2/PI3K/Akt axis, implying that circ_001422 can be therapeutically targeted to treat OS. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02027-0.
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Affiliation(s)
- Bingsheng Yang
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Lutao Li
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Ge Tong
- Department of Medical Ultrasonics, Guangdong Province Key Laboratory of Hepatology Research, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510630, China
| | - Zhirui Zeng
- Guizhou Provincial Key Laboratory of Pathogenesis & Drug Research on Common Chronic Diseases, Department of Physiology, School of Basic Medicine, Guizhou Medical University, Guiyang, 550009, China
| | - Jianye Tan
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Zexin Su
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, 510080, China
| | - Zhengwei Liu
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Jiezhao Lin
- Department of Spinal Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Wenwen Gao
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy, Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Jianping Chen
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy, Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Sisi Zeng
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy, Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China
| | - Guofeng Wu
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Lin Li
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Shuang Zhu
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China
| | - Qiuzhen Liu
- Guangdong Provincial Key Laboratory of Cancer Immunotherapy, Guangzhou Key Laboratory of Tumor Immunology Research, Cancer Research Institute, School of Basic Medical Sciences, Southern Medical University, Guangzhou, 510515, China.
| | - Lijun Lin
- Department of Joint and Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, 510282, China.
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Song HK, Kim SY. The Role of Sex-specific Long Non-coding RNAs in Cancer Prevention and Therapy. J Cancer Prev 2021; 26:98-109. [PMID: 34258248 PMCID: PMC8249206 DOI: 10.15430/jcp.2021.26.2.98] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/11/2021] [Accepted: 05/21/2021] [Indexed: 12/15/2022] Open
Abstract
The functions of a large number of non-coding genes in human DNA have yet to be accurately identified. Long non-coding RNA (lncRNA) measuring 10 kb or less in length regulates transcription or post-transcriptional events. The lncRNAs have attracted increased attention of researchers in recent years. In this review, we summarize the recently published lncRNAs which are known to influence cancer development and progression. We also discuss recent studies investigating tumor-specific lncRNA expression. These lncRNAs provide very useful information that allows prediction of the degree of malignancy and a survival rate in cancer patients as clinically relevant biomarkers. Because symptoms and progression of cancer differ from onset to death between males and females, it is important to consider the gender of the patient when diagnosing cancer and predicting the progression. Considering the importance of gender difference, we also examine the influence of sex hormones involved in the expression and regulation of lncRNAs as biomarkers. Many of the lncRNAs examined in this review have been studied in cancers occurring in the female or male reproductive organs, but the association between lncRNAs and sex hormones has also been reported in common organs such as the lung, renal and colon. Although lncRNAs have not yet been widely used as definitive cancer indicators, recent studies have demonstrated the potential role of lncRNAs as biomarkers and therapeutic targets reflecting sex-specificity in a number of different cancers.
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Affiliation(s)
- Hye Kyung Song
- Department of Chemistry, College of Science and Technology, Duksung Women's University, Seoul, Korea
| | - Sun Young Kim
- Department of Chemistry, College of Science and Technology, Duksung Women's University, Seoul, Korea
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Meng X, Zhang Z, Chen L, Wang X, Zhang Q, Liu S. Silencing of the Long Non-Coding RNA TTN-AS1 Attenuates the Malignant Progression of Osteosarcoma Cells by Regulating the miR-16-1-3p/TFAP4 Axis. Front Oncol 2021; 11:652835. [PMID: 34141611 PMCID: PMC8204018 DOI: 10.3389/fonc.2021.652835] [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: 01/18/2021] [Accepted: 05/14/2021] [Indexed: 11/27/2022] Open
Abstract
Objectives Osteosarcoma (OS) is a type of bone malignancy. This study attempted to explore the effect of long non-coding RNA TTN-AS1 (TTN-AS1) on OS and to determine its molecular mechanisms. Methods The expression of TTN-AS1, microRNA-16-1-3p (miR-16-1-3p), and transcription factor activating enhancer binding protein 4 (TFAP4) in OS was assessed using qRT-PCR. The OS cell proliferation, migration, and invasion were measured using 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), wound-healing, and transwell assays. N-cadherin and MMP-2 protein level was determined with western blot. Interactions between TTN-AS1 and miR-16-1-3p or TFAP4 and miR-16-1-3p were confirmed using the dual-luciferase reporter assay. Additionally, an OS xenograft tumor model was constructed to assess the effect of TTN-AS1 on tumor growth. Results TTN-AS1 and TFAP4 expression was increased in OS, while miR-16-1-3p expression was decreased. TTN-AS1 silencing restrained OS cell proliferation, migration, invasion, N-cadherin and MMP-2 protein expression, and hindered tumor growth. MiR-16-1-3p overexpression retarded the malignant behavior of OS cells. TTN-AS1 played a carcinostatic role by down-regulating miR-16-1-3p in the OS cells. Moreover, miR-16-1-3p inhibition or TFAP4 elevation weakened the suppressive effect of TTN-AS1 silencing on OS cell tumor progression. Conclusion TTN-AS1 promoted the proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) of OS cells via mediating the miR-16-1-3p/TFAP4 axis. TTN-AS1 may be a critical target for improving OS.
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Affiliation(s)
- Xianghai Meng
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Zhenjun Zhang
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Lin Chen
- Department of Burn Reconstructive Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Xi Wang
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Qingguo Zhang
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Shuheng Liu
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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Zhang W, Ren X, Qi L, Zhang C, Tu C, Li Z. The value of lncRNAs as prognostic biomarkers on clinical outcomes in osteosarcoma: a meta-analysis. BMC Cancer 2021; 21:202. [PMID: 33639865 PMCID: PMC7912917 DOI: 10.1186/s12885-021-07882-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/05/2021] [Indexed: 02/08/2023] Open
Abstract
Background In recent years, emerging studies have demonstrated critical functions and potential clinical applications of long non-coding RNA (lncRNA) in osteosarcoma. To further validate the prognostic value of multiple lncRNAs, we have conducted this updated meta-analysis. Methods Literature retrieval was conducted by searching PubMed, Web of Science and the Cochrane Library (last update by October 2, 2019). A meta-analysis was performed to explore association between lncRNAs expression and overall survival (OS) of osteosarcoma patients. Relationships between lncRNAs expression and other clinicopathological features were also analyzed respectively. Results Overall, 4351 patients from 62 studies were included in this meta-analysis and 25 lncRNAs were identified. Pooled analyses showed that high expression of 14 lncRNAs connoted worse OS, while two lncRNAs were associated with positive outcome. Further, analysis toward osteosarcoma clinicopathologic features demonstrated that overexpression of TUG1 and XIST indicated poor clinical parameters of patients. Conclusions This meta-analysis has elucidated the prognostic potential of 16 lncRNAs in human osteosarcoma. Evidently, desperate expression and functional targets of these lncRNAs offer new approaches for prognosis and therapy of osteosarcoma. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-07882-w.
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Affiliation(s)
- Wenchao Zhang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Xiaolei Ren
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Lin Qi
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Chenghao Zhang
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China
| | - Chao Tu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China. .,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
| | - Zhihong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan, People's Republic of China. .,Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Central South University, Changsha, Hunan, People's Republic of China.
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10
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Zhang GF, Zhou BS, An XC, An FM, Li SH. LINC01278 is Highly Expressed in Osteosarcoma and Participates in the Development of Tumors by Mediating the miR-134-5p/KRAS Axis. Onco Targets Ther 2021; 14:683-695. [PMID: 33531816 PMCID: PMC7847385 DOI: 10.2147/ott.s265591] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 12/08/2020] [Indexed: 12/18/2022] Open
Abstract
Purpose There is increasing evidence that non-coding RNAs (ncRNAs), including long non-coding RNAs (lncRNAs) and microRNAs (miRNAs), produce a critical regulatory effect on osteosarcoma (OS). LINC01278, as a newly discovered lncRNA, is found to be highly expressed in OS, but its related mechanism remains unclear. This research, therefore, is designed to study the mechanism of LINC01278 in OS and to find potential targets for clinical use. Methods qRT-PCR was applied to determine the relative expression of LINC01278 and analyze its diagnostic value in OS. CCK-8, Transwell and flow cytometry were utilized for the determination of cell proliferation, migration/invasion, and apoptosis. RIP and RNA pull-down experiments were used to verify the targeted binding effect of miR-134-5p and LINC01278. The relationship between miR-134-5p and LINC01278 or KRAS was analyzed using dual luciferase reporter gene. The effects of LINC01278 on tumor growth in nude mice was analyzed by in vivo experiment. Results qRT-PCR showed that LINC01278 increased in OS tissues and serum, indicating poor prognosis. In addition, LINC01278 was also of high value for OS diagnosis. Functional experiments showed that LINC01278 inhibited KRAS-mediated OS cell proliferation and metastasis through miR-134-5p. Finally, the results of an in vivo animal model indicated that LINC01278 promoted OS growth. Conclusion LINC01278 is expressed highly in OS, and patients with high LINC01278 expression have poor prognosis. Moreover, LINC01278 can suppress the proliferation and apoptosis of OS cells through mediating miR-134-5p/KRAS axis, which is expected to become a potential therapeutic target for OS.
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Affiliation(s)
- Guo-Feng Zhang
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Bai-Sui Zhou
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Xiao-Chun An
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Feng-Min An
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
| | - Shan-Hui Li
- Department of Orthopedics, Yantai Affiliated Hospital of Binzhou Medical University, Yantai 261400, People's Republic of China
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Role of long non-coding RNA TP73-AS1 in cancer. Biosci Rep 2020; 39:220727. [PMID: 31652459 PMCID: PMC6822500 DOI: 10.1042/bsr20192274] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/26/2019] [Accepted: 10/04/2019] [Indexed: 12/24/2022] Open
Abstract
Cancer incidence rate has increased so much that it is the second leading cause of deaths worldwide after cardiovascular diseases. Sensitive and specific biomarkers are needed for an early diagnosis of cancer and in-time treatment. Recent studies have found that long non-coding RNAs (lncRNAs) participate in cancer tumorigenesis. LncRNA P73 antisense RNA 1T (TP73-AS1), also known as KIAA0495 and p53-dependent apoptosis modulator (PDAM), is located in human chromosomal band 1p36.32 and plays a crucial role in many different carcinomas. This review summarizes current findings on the role of TP73-AS1 and its signaling pathways in various cancers, including glioma, esophageal squamous cell carcinoma (ESCC), hepatocellular carcinoma (HCC), colorectal cancer (CRC), osteosarcoma, gastric cancer (GC), clear cell renal cell carcinoma (ccRCC), breast cancer (BC), bladder cancer, ovarian cancer, cholangiocarcinoma (CCA), lung cancer, and pancreatic cancer. Its aberrant expression generally correlates with clinicopathological characterization of patients. Moreover, TP73-AS1 regulates proliferation, migration, invasion, apoptosis, and chemoresistance cancer mechanisms, both in vivo and in vitro, through different signaling pathways. Therefore, TP73-AS1 may be considered as a marker for diagnosis and prognosis, also as a target for cancer treatment.
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Liu S, Meng X. LINC00662 Long Non-Coding RNA Knockdown Attenuates the Proliferation, Migration, and Invasion of Osteosarcoma Cells by Regulating the microRNA-15a-5p/Notch2 Axis. Onco Targets Ther 2020; 13:7517-7530. [PMID: 32848412 PMCID: PMC7429411 DOI: 10.2147/ott.s256464] [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: 04/07/2020] [Accepted: 07/10/2020] [Indexed: 12/14/2022] Open
Abstract
Purpose Osteosarcoma (OS) is a frequently occurring malignancy in children and adolescents. In this study, we aimed to investigate the effects of the long non-coding RNA (lncRNA) LINC00662 (LINC00662) in OS and the underlying molecular mechanism. Methods The expression of LINC00662, microRNA-15a-5p (miR-15a-5p), and Notch2 in OS was detected by quantitative real-time polymerase chain reaction (qRT-PCR). The proliferation, migration, and invasion of OS cells were analyzed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT), wound-healing, and transwell assay. The interactions among LINC00662, miR-15a-5p, and Notch2 were determined by dual-luciferase reporter assays. A tumor xenograft model was established in mice for evaluating tumor growth in vivo. Results The expression of LINC00662 and Notch2 was found to be upregulated in OS, but the expression of miR-15a-5p was downregulated. The results demonstrated that LINC00662 knockdown attenuated the proliferation, migration, and invasion of OS cells and suppressed tumor growth in mice. The study further demonstrated that LINC00662 directly interacted with miR-15a-5p, and that Notch2 was a target of miR-15a-5p. The inhibition of miR-15a-5p or Notch2 overexpression markedly reversed the suppressive effect of sh-LINC00662 on the proliferation, migration, and invasion of OS cells. Conclusion The study demonstrated that LINC00662 could be a potential biomarker for OS therapy, and LINC00662 knockdown suppressed the proliferation, migration, and invasion of OS cells by regulating the miR-15a-5p/Notch2 axis.
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Affiliation(s)
- Shuheng Liu
- Department of Spine Surgery, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan City, Shandong Province, People's Republic of China
| | - Xianghai Meng
- Trauma Center, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan City, Shandong Province, People's Republic of China
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Zhong Y, Zhao M, Yu Y, Li Q, Wang F, Wu P, Zhang W, Miao L. Prognostic value and therapeutic potential of the long noncoding RNA TP73-AS1 in cancers: A systematic review and meta-analysis. Sci Rep 2020; 10:9053. [PMID: 32493915 PMCID: PMC7271165 DOI: 10.1038/s41598-020-65726-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 04/30/2020] [Indexed: 12/26/2022] Open
Abstract
Studies published in recent years have demonstrated that abnormal long noncoding RNA (lncRNA) antisense RNA to TP73 gene (TP73-AS1) expression is markedly associated with tumorigenesis, cancer progression and the prognosis of cancer patients. We aimed to explore the prognostic value of TP73-AS1 in multiple cancers. We comprehensively searched PubMed, Embase, Web of Science and the Cochrane Library (up to February 21, 2019). Hazard ratios (HRs), odds ratios (ORs) and the corresponding 95% confidence intervals (95% CIs) were calculated to estimate the association of TP73-AS1 with survival and clinicopathological features. The potential targets and pathways of TP73-AS1 in multiple cancers were summarized. Nineteen studies that involved thirteen types of cancers and 1329 cancer patients were identified as eligible for this meta-analysis. The results showed that high TP73-AS1 expression was significantly correlated with shorter overall survival (OS) (HR = 1.962, 95% CI 1.630-2.362) and disease-free survival (DFS) (HR = 2.050, 95% CI 1.293-3.249). The summary HRs of OS were 2.101 (95% CI 1.516-2.911) for gastric cancer (GC) and 1.920 (95% CI 1.253-2.942) for osteosarcoma. Subgroup analysis of OS demonstrated that the differential expression of TP73-AS1 in cancer tissues was a potential source of heterogeneity. Furthermore, increased TP73-AS1 expression was markedly associated with larger tumor size (OR = 2.759, 95% CI 1.759-4.330), advanced histological grade (OR = 2.394, 95% CI 1.231-4.656), lymph node metastasis (OR = 2.687, 95% CI 1.211-5.962), distant metastasis (OR = 4.145, 95% CI 2.252-7.629) and advanced TNM stage (OR = 2.633, 95% CI 1.507-4.601). The results of Egger's test and sensitivity analysis verified the robustness of the original results. High TP73-AS1 expression can predict poor survival and poor clinicopathological features in cancer patients and TP73-AS1 might be a potential biomarker and therapeutic target.
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Affiliation(s)
- Yuan Zhong
- Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China
| | - Meng Zhao
- Department of Cardiovascular Surgery, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China
| | - Yang Yu
- Nantong Tumor Hospital, Nantong, 226300, China
| | - Quanpeng Li
- Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China
| | - Fei Wang
- Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China
| | - Peiyao Wu
- Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China
| | - Wen Zhang
- Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China
| | - Lin Miao
- Medical Center for Digestive Diseases, the Second Affiliated Hospital of Nanjing Medical University, Nanjing, 210011, China.
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Yang Q, Chen T, Yao Z, Zhang X. Prognostic value of pre-treatment Naples prognostic score (NPS) in patients with osteosarcoma. World J Surg Oncol 2020; 18:24. [PMID: 32000789 PMCID: PMC6993441 DOI: 10.1186/s12957-020-1789-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 01/12/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND This study aimed to evaluate the clinical significance of pre-treatment Naples prognostic score (NPS) in patients with osteosarcoma. METHODS The clinical data of 133 osteosarcoma patients between January 2011 and February 2018 in our hospital was retrospectively collected and analyzed. NPS was calculated from four parameters, including serum albumin level, serum total cholesterol (TC), lymphocyte-to-monocyte ratio (LMR), and neutrophil-to-lymphocyte ratio (NLR). Patients were divided into three groups (group 1-3) based on NPS. The relationships between NPS and clinical features, overall survival (OS), and progression-free survival (PFS) were analyzed. Two prediction models based on NPS and clinical parameters were developed: clinical parameters model (model A), and the combined model of NPS and clinical parameters (model B). Their predictive performances were further evaluated and compared. RESULTS The median follow-up time of this cohort was 46.0 (range, 5-75) months, while the median OS and PFS was 40 (range, 5-75) months and 36 (range, 5-71) months, respectively. NPS was significantly correlated with gender, tumor location, Enneking stage, pathological fracture, local recurrence, and metastasis (all P < 0.05). Variables of NPS, Enneking stage, local recurrence, metastasis, and NLR were confirmed as independent prognostic factors for OS and PFS by univariate and multivariate Cox analysis. Prediction model B obtained larger AUCs for OS and PFS and showed better consistency between nomogram-predicted and actual survival than that of model A at the follow-up time of 1-, 3-, and 5-year. CONCLUSIONS NPS was a novel, reliable, and multidimensional prognostic scoring system with favorable predictive performance for patients with osteosarcoma.
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Affiliation(s)
- Qiankun Yang
- Department Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Tong Chen
- Department Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China
| | - Zhongxiang Yao
- Department of Physiology, Army Medical University, Chongqing, China
| | - Xiaojing Zhang
- Department Bone and Soft Tissue Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, China.
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Wang X, Shu K, Wang Z, Ding D, Li X. Prognostic value of long non-coding RNA TP73-AS1 expression in different types of cancer: A systematic review and meta-analysis. ELECTRON J BIOTECHN 2020. [DOI: 10.1016/j.ejbt.2019.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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16
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Li M, Jin Y, Li Y. LncRNA TP73-AS1 Activates TGF-β1 to Promote the Migration and Invasion of Colorectal Cancer Cell. Cancer Manag Res 2019; 11:10523-10529. [PMID: 31908524 PMCID: PMC6924583 DOI: 10.2147/cmar.s228490] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 11/26/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose LncRNA TP73-AS1 has been demonstrated to promote the developments of several types of human cancer. However, its role in colorectal cancer (CRC) is unknown. Methods All CRC patients (n=70, 40 males and 30 females, 38 to 66 years’ old, 52.1 ± 5.3 years’ old) in this study were enrolled in the Affiliated Hospital of Southwest Medical University from July 2012 to January 2014. Cells, vectors, and transient transfections, RT-qPCR, western-blotting, as well as measurements of cell migration and invasion abilities were carried out during the research. Results In the present study, we found that TP73-AS1 was upregulated in CRC tissues compared with adjacent non-CRC tissues in CRC patients. Upregulation of TP73-AS1 was closely correlated with poor prognosis. TGF-β1 was also upregulated in CRC tissues and positive correlated with TP73-AS1. TP73-AS1 overexpression caused upregulated TGF-β1 in CRC cells, while TGF-β1 overexpression showed no significant effect on TP73-AS1. TP73-AS1 and TGF-β1 overexpressions caused enhanced migration and invasion of CRC cells. TGF-β inhibitor treatment caused suppressed migration and invasion of CRC cells and attenuated effects of TP73-AS1 and TGF-β1 overexpression. Conclusion Therefore, TP73-AS1 may inactivate TGF-β1 to inhibit the migration and invasion of CRC cells.
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Affiliation(s)
- Mingli Li
- Department of Chinese traditional medicine, Jining University, Qufu City, Shandong Province, 273155, People's Republic of China
| | - Yuanyuan Jin
- The First People's Hospital of Yuzhong County, Lanzhou City, Gansu Province 730100, People's Republic of China
| | - Yuanzhi Li
- Department of Anorectal Hemorrhoid Fistula, The Affiliated Hospital of Southwest Medical University, Luzhou City, Sichuan Province 646000, People's Republic of China
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Chu F, Xue L, Miao H. Long noncoding RNA TP73-AS1 in human cancers. Clin Chim Acta 2019; 500:104-108. [PMID: 31678571 DOI: 10.1016/j.cca.2019.09.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/21/2019] [Accepted: 09/23/2019] [Indexed: 02/06/2023]
Abstract
Long noncoding RNAs (lncRNAs) play an important role in tumor development. With the development of sequencing technology, many new lncRNAs have been discovered. lncRNA TP73-AS1 is abnormally expressed in many cancers. A summary of the current literature related to TP73-AS1 reveals that TP73-AS1 mainly regulates the occurrence and development of tumors through the mechanism of competitive endogenous RNA (ceRNA). In addition, the abnormal expression of TP73-AS1 can regulate the malignant function of tumor cells through a variety of possible mechanisms. All evidence suggests that TP73-AS1 may be a potential diagnostic biomarker or a new cancer therapeutic target.
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Affiliation(s)
- Feihu Chu
- Department of Breast Surgery, Nantong Tumor Hospital, Nantong, China
| | - Lusha Xue
- Department of Urology, Nanjing Drum Tower Hospital, Nanjing, China
| | - Haiyan Miao
- Department of General Surgery, The Sixth People's Hospital of Nantong, Nantong, China; Nantong University, Nantong, China.
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Tang Y, Ji F. lncRNA HOTTIP facilitates osteosarcoma cell migration, invasion and epithelial-mesenchymal transition by forming a positive feedback loop with c-Myc. Oncol Lett 2019; 18:1649-1656. [PMID: 31423232 PMCID: PMC6607149 DOI: 10.3892/ol.2019.10463] [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: 10/28/2018] [Accepted: 04/24/2019] [Indexed: 01/04/2023] Open
Abstract
Homeobox A transcript at the distal tip (HOTTIP) is an oncogenic long non-coding RNA in cancer. The aim of the present study was to investigate the function and mechanism of HOTTIP in the aggressive behaviors of human osteosarcoma (OS) cells. Expression levels of HOTTIP and epithelial-mesenchymal transition (EMT) markers were determined by reverse transcription-quantitative PCR. Cell invasive and migratory abilities were evaluated in vitro using Matrigel and wound healing assays, respectively. Knockdown of HOTTIP expression was achieved by small interfering RNA-mediated silencing. Overexpression of c-Myc was accomplished by transfecting cultured cells with a c-Myc overexpression plasmid. HOTTIP was demonstrated to be upregulated in OS tissues and cell lines; knockdown of HOTTIP inhibited OS cell migration, invasion and EMT, and suppressed c-Myc expression. In addition, overexpression of c-Myc increased HOTTIP expression and enhanced OS cell migration and invasion. HOTTIP promoted cell migration and invasion by upregulating c-Myc in OS. The positive feedback loop formed by HOTTIP and c-Myc may contribute to OS progression, and HOTTIP may act as a therapeutic target for OS.
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Affiliation(s)
- Yang Tang
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai 200438, P.R. China
| | - Fang Ji
- Department of Orthopedics, Changhai Hospital, Second Military Medical University, Shanghai 200438, P.R. China
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LncRNA TP73-AS1 down-regulates miR-139-3p to promote retinoblastoma cell proliferation. Biosci Rep 2019; 39:BSR20190475. [PMID: 31015368 PMCID: PMC6509052 DOI: 10.1042/bsr20190475] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Revised: 04/05/2019] [Accepted: 04/12/2019] [Indexed: 01/18/2023] Open
Abstract
Our study aimed to investigate the role of long non-coding RNAs (lncRNA) TP73-AS1 in retinoblastoma (Rb). In the present study, we found that TP73-AS1 was up-regulated, while miR-139–3p was down-regulated in Rb. TP73-AS1 and miR-139-3p were inversely correlated in Rb tissues. In cells of Rb cell lines, overexpression of miR-139-3p failed to affect TP73-AS1, while TP73-AS1 overexpression caused the down-regulated miR-139-3p. TP73-AS1 overexpression caused promoted proliferation of Rb cells but showed no significant effects on cell migration and invasion. miR-139-3p overexpression played an opposite role and attenuated the effects of TP73-AS1 overexpression. Therefore, lncRNA TP73-AS1 may down-regulate miR-139-3p to promote Rb cell proliferation.
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