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Yoon JH, Byun HJ, Kim SY, Jung DH, Lee SK. Exosomal LINC00853 promotes progression of gastric cancer via the MAP17/PDZK1/AKT signaling pathway. Noncoding RNA Res 2024; 9:876-886. [PMID: 38586313 PMCID: PMC10997811 DOI: 10.1016/j.ncrna.2024.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/26/2024] [Accepted: 03/26/2024] [Indexed: 04/09/2024] Open
Abstract
Although rare, there is ongoing research into biomarkers that predict the onset and recurrence of gastric cancer, particularly focusing on substances found in exosomes. Long non-coding RNAs (lncRNAs) have garnered attention for their potential in diagnosing gastric cancer. This study investigates the role of lncRNAs in gastric cancer, focusing on their presence in exosomes as potential biomarkers for the disease's onset and recurrence. We utilized the ArrayStar Human LncRNA array 2.0 to analyze lncRNA expression in tissues from early-stage gastric cancer patients. Our analysis highlighted LINC00853, which was significantly upregulated in cancer tissues and implicated in promoting epithelial-mesenchymal transition via the MAP17/PDZK1/AKT pathway. Functional studies on AGS and MKN74 gastric cancer cell lines demonstrated that LINC00853 facilitates cell proliferation, invasion, and migration. Additionally, RNA immunoprecipitation and electrophoretic mobility shift assays confirmed LINC00853 interaction with MAP17. Importantly, LINC00853 was also detected in exosomes from both patient samples and cell lines, and its downregulation led to decreased tumorigenicity in AGS cells. These findings suggest that both cellular and exosomal LINC00853 contribute to gastric cancer pathogenesis and may serve as valuable biomarkers for the disease.
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Affiliation(s)
| | | | - Seo Yeon Kim
- Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, South Korea
| | - Da Hyun Jung
- Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang Kil Lee
- Department of Internal Medicine, Yonsei Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, South Korea
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Liu C, Li K, Ding W, Tang X, Wu Z, Zhu X, Gong W, Zhao H. LINC01535 promotes hepatocellular carcinoma proliferation and metastasis by regulating the miR-214-3p/VASP axis. J Cancer 2024; 15:3809-3824. [PMID: 38911365 PMCID: PMC11190762 DOI: 10.7150/jca.91756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 05/02/2024] [Indexed: 06/25/2024] Open
Abstract
Background: Emerging evidence has indicated that long noncoding RNAs (lncRNAs) are associated with the development and progression of several carcinomas, including hepatocellular carcinoma (HCC). However, the role of LINC01535 in HCC is still unknown. Materials and methods: In this study, RNA-seq, CCK-8, colony formation, wound healing, Transwell and tumor xenograft assays were used to explore the function of LINC01535 in the proliferation and metastasis of HCC in vitro and in vivo. Fluorescence in situ hybridization (FISH) assay, bioinformatics analysis, dual-luciferase assay, quantitative real-time polymerase chain reaction (qRT-PCR), and western blot analysis were used to reveal the interactions of LINC01535, miR-214-3p and VASP. Results: LINC01535 was overexpressed in HCC tissues and HCC cell lines. Gain- and loss-of-function studies revealed that LINC01535 could promote HCC cell proliferation, migration and invasion both in vitro and in vivo. In addition, upregulation of LINC01535 significantly decreased the expression of microRNA-214-3p (miR-214-3p), which was found closely associated with suppressing tumor progression. Moreover, VASP was identified as a direct downstream target gene of miR-214-3p. LINC01535 positively regulated VASP expression by sponging miR-214-3p, and VASP overexpression activated the PI3K/AKT signaling pathway and stimulated epithelial-to-mesenchymal transition (EMT) in HCC. Conclusions: Our study first found that LINC01535 promoted HCC progression by regulating its downstream target, the miR-214-3p/VASP axis, via the PI3K/AKT signaling pathway. The function and novel regulatory mechanism of LINC01535 may provide a valuable target for the diagnosis and treatment of HCC patients.
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Affiliation(s)
- Chunjiang Liu
- Department of General Surgery, Shaoxing People's Hospital, Shaoxing, 312000, China
| | - Kuan Li
- Department of Hepatobiliary Surgery, Kunshan Hospital of Traditional Chinese Medicine, Suzhou, 215000, China
| | - Wenzhou Ding
- Hepatobiliary Center, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210000, China
| | - Xiaoqi Tang
- Department of General Surgery, Shaoxing People's Hospital, Shaoxing, 312000, China
| | - Zhifeng Wu
- Department of General Surgery, Shaoxing People's Hospital, Shaoxing, 312000, China
| | - Xin Zhu
- Department of General Surgery, Shaoxing People's Hospital, Shaoxing, 312000, China
| | - Wanwan Gong
- Department of Hepatopancreatobiliary Surgery, Jiangnan University Medical Center, Wuxi, 214002, China
| | - Hui Zhao
- Department of Hepatopancreatobiliary Surgery, Jiangnan University Medical Center, Wuxi, 214002, China
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Wu L, Chen W, Cao Y, Chen B, He Y, Wang X. A novel cuproptosis-related lncRNAs signature predicts prognosis in bladder cancer. Aging (Albany NY) 2023; 15:6445-6466. [PMID: 37424068 PMCID: PMC10373974 DOI: 10.18632/aging.204861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 06/14/2023] [Indexed: 07/11/2023]
Abstract
This study constructed a novel cuproptosis-related lncRNAs signature to predict the prognosis of BLCA patients. The Cancer Genome Atlas (TCGA) database was used to retrieve the RNA-seq data together with the relevant clinical information. The cuproptosis-related genes were first discovered. The cuproptosis-related lncRNAs were then acquired by univariate, the least absolute shrinkage and selection operator (LASSO) and multivariate Cox regression analysis to create a predictive signature. An eight cuproptosis-related lncRNAs (AC005261.1, AC008074.2, AC021321.1, AL024508.2, AL354919.2, ARHGAP5-AS1, LINC01106, LINC02446) predictive signature was created. Compared with the low-risk group, the prognosis was poorer for the high-risk group. The signature served as an independent overall survival (OS) predictor. Receiver operating characteristic (ROC) curve indicated that the signature demonstrated superior predictive ability, as evidenced by the area under the curve (AUC) of 0.782 than the clinicopathological variables. When we performed a subgroup analysis of the different variables, the high-risk group's OS for BLCA patients was lower than that of the low-risk group's patients. Gene Set Enrichment Analysis (GSEA) showed that high-risk groups were clearly enriched in many immune-related biological processes and tumor-related signaling pathways. Single sample gene set enrichment analysis (ssGSEA) revealed that the immune infiltration level was different between the two groups. Finally, quantitative RT-PCR showed that AC005261.1, AC021321.1, AL024508.2, LINC02446 and LINC01106 were lowly expressed in tumor cells, while ARHGAP5-AS1 showed the opposite trend. In summary, the predictive signature can independently predict the prognosis and provide clinical treatment guidance for BLCA patients.
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Affiliation(s)
- Lingfeng Wu
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, Jiangzhe 314000, China
| | - Wei Chen
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, Jiangzhe 314000, China
| | - Yifang Cao
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, Jiangzhe 314000, China
| | - Bin Chen
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, Jiangzhe 314000, China
| | - Yi He
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, Jiangzhe 314000, China
| | - Xueping Wang
- Department of Urology, The Affiliated Hospital of Jiaxing University, Jiaxing, Jiangzhe 314000, China
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Peng Y, Huang X, Wang H. Serum lncRNA LINC01535 as Biomarker of Diagnosis, Prognosis, and Disease Progression in Breast Cancer. Clin Breast Cancer 2023:S1526-8209(23)00109-X. [PMID: 37268524 DOI: 10.1016/j.clbc.2023.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 05/09/2023] [Accepted: 05/11/2023] [Indexed: 06/04/2023]
Abstract
BACKGROUND Breast cancer has become the world's leading cancer, the leading killer of women's health, with a high mortality rate. With the development of medical technology, lncRNAs are widely used in the diagnosis and prognosis of various tumors, so finding new specific molecular markers and targets is the key to prolonging the survival time of breast cancer patients. MATERIALS AND METHODS The expressions of lncRNA LINC01535 and miR-214-3p in breast cancer were detected by quantitative real-time PCR (qRT-PCR). The diagnostic significance of LINC01535 in breast cancer was assessed by ROC curve. The prognostic value of LINC01535 was verified by Kaplan-Meier method. The regulation of low expression of LINC01535 on proliferation and other biological abilities of breast cancer cells was determined by CCK-8 and Transwell method. The luciferase activity report assays indicated the relationship between LINC01535 and miR-214-3p. RESULTS LINC01535 was elevated in breast cancer, which was negatively correlated with miR-214-3p, and miR-214-3p expression was decreased. LINC01535 proved to be promising in the diagnosis and prognosis of breast cancer. Low expression of LINC01535 targeting miR-214-3p had regulatory significance on tumor progression, lymph node metastasis and TNM stage. CONCLUSION Silencing LINC01535 inhibited the proliferation capacity, migration level and invasion of breast cancer cells in vitro. LINC01535 was likely to be the focus of continued attention as a diagnostic and prognosis marker for breast cancer in the future.
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Affiliation(s)
- Yi Peng
- Department of Breast Surgery, Fujian Provincial Maternity and Children's Hospital, Fuzhou, China.
| | - Xiaoxi Huang
- Department of Breast Surgery, Fujian Provincial Maternity and Children's Hospital, Fuzhou, China
| | - Hongmei Wang
- Department of Breast Surgery, Fujian Provincial Maternity and Children's Hospital, Fuzhou, China
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Parashar D, Singh A, Gupta S, Sharma A, Sharma MK, Roy KK, Chauhan SC, Kashyap VK. Emerging Roles and Potential Applications of Non-Coding RNAs in Cervical Cancer. Genes (Basel) 2022; 13:genes13071254. [PMID: 35886037 PMCID: PMC9317009 DOI: 10.3390/genes13071254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/06/2022] Open
Abstract
Cervical cancer (CC) is a preventable disease using proven interventions, specifically prophylactic vaccination, pervasive disease screening, and treatment, but it is still the most frequently diagnosed cancer in women worldwide. Patients with advanced or metastatic CC have a very dismal prognosis and current therapeutic options are very limited. Therefore, understanding the mechanism of metastasis and discovering new therapeutic targets are crucial. New sequencing tools have given a full visualization of the human transcriptome's composition. Non-coding RNAs (NcRNAs) perform various functions in transcriptional, translational, and post-translational processes through their interactions with proteins, RNA, and even DNA. It has been suggested that ncRNAs act as key regulators of a variety of biological processes, with their expression being tightly controlled under physiological settings. In recent years, and notably in the past decade, significant effort has been made to examine the role of ncRNAs in a variety of human diseases, including cancer. Therefore, shedding light on the functions of ncRNA will aid in our better understanding of CC. In this review, we summarize the emerging roles of ncRNAs in progression, metastasis, therapeutics, chemo-resistance, human papillomavirus (HPV) regulation, metabolic reprogramming, diagnosis, and as a prognostic biomarker of CC. We also discussed the role of ncRNA in the tumor microenvironment and tumor immunology, including cancer stem cells (CSCs) in CC. We also address contemporary technologies such as antisense oligonucleotides, CRISPR-Cas9, and exosomes, as well as their potential applications in targeting ncRNAs to manage CC.
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Affiliation(s)
- Deepak Parashar
- Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, MI 53226, USA
- Correspondence: (D.P.); (V.K.K.); Tel.: +1-414-439-8089 (D.P.); +1-956-296-1738 (V.K.K.)
| | - Anupam Singh
- Department of Biotechnology, GLA University, Mathura 281406, Uttar Pradesh, India; (A.S.); (S.G.)
| | - Saurabh Gupta
- Department of Biotechnology, GLA University, Mathura 281406, Uttar Pradesh, India; (A.S.); (S.G.)
| | - Aishwarya Sharma
- Sri Siddhartha Medical College and Research Center, Tumkur 572107, Karnataka, India;
| | - Manish K. Sharma
- Department of Biotechnology, IP College, Bulandshahr 203001, Uttar Pradesh, India;
| | - Kuldeep K. Roy
- Department of Pharmaceutical Sciences, School of Health Sciences and Technology, UPES, Dehradun 248007, Uttarakhand, India;
| | - Subhash C. Chauhan
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA;
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
| | - Vivek K. Kashyap
- Department of Immunology and Microbiology, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA;
- South Texas Center of Excellence in Cancer Research, School of Medicine, University of Texas Rio Grande Valley, McAllen, TX 78504, USA
- Correspondence: (D.P.); (V.K.K.); Tel.: +1-414-439-8089 (D.P.); +1-956-296-1738 (V.K.K.)
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Ma RJ, Ma C, Hu K, Zhao MM, Zhang N, Sun ZG. Molecular mechanism, regulation, and therapeutic targeting of the STAT3 signaling pathway in esophageal cancer (Review). Int J Oncol 2022; 61:105. [PMID: 35856449 PMCID: PMC9339493 DOI: 10.3892/ijo.2022.5395] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/05/2022] [Indexed: 12/24/2022] Open
Abstract
Esophageal cancer (EC) is the seventh most common cancer globally, and the overall 5-year survival rate is only 20%. Signal transducer and activator of transcription 3 (STAT3) is aberrantly activated in EC, and its activation is associated with a poor prognosis. STAT3 can be activated by canonical pathways such as the JAK/STAT3 pathway as well as non-canonical pathways including the Wnt/STAT3 and COX2/PGE2/STAT3 pathways. Activated STAT3, present as phosphorylated STAT3 (p-STAT3), can be transported into the nucleus to regulate downstream genes, including VEGF, cyclin D1, Bcl-xL, and matrix metalloproteinases (MMPs), to promote cancer cell proliferation and induce resistance to therapy. Non-coding RNAs, including microRNAs (miRNAs/miRs), circular RNAs (circRNAs), and long non-coding RNAs (lncRNAs), play a vital role in regulating the STAT3 signaling pathway in EC. Several miRNAs promote or suppress the function of STAT3 in EC, while lncRNAs and circRNAs primarily promote the effects of STAT3 and the progression of cancer. Additionally, various drugs and natural compounds can target STAT3 to suppress the malignant behavior of EC cells, providing novel insights into potential EC therapies.
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Affiliation(s)
- Rui-Jie Ma
- Department of Thoracic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Chao Ma
- Department of Thoracic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Kang Hu
- Department of Thoracic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Meng-Meng Zhao
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Nan Zhang
- Department of Breast Disease Center, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
| | - Zhi-Gang Sun
- Department of Thoracic Surgery, Jinan Central Hospital, Shandong University, Jinan, Shandong 250013, P.R. China
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Long non-coding RNA ZNF674-AS1 antagonizes oxaliplatin resistance of gastric cancer via regulating EZH2-mediated methylation of CHST7. Aging (Albany NY) 2022; 14:5523-5536. [PMID: 35802620 PMCID: PMC9320539 DOI: 10.18632/aging.204165] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 06/27/2022] [Indexed: 12/24/2022]
Abstract
Chemoresistance leads the cause of poor outcome of patients with gastric cancer (GC). Long non-coding RNAs (LncRNAs) is intimately involved in the regulation of tumorigenesis and progression. Here, we demonstrated ZNF674-AS1 was down-regulated in oxaliplatin (OXA)-resistant tissues and cell lines, lower level of ZNF674-AS1 predicted poor prognosis of GC patients. Besides, forced expression of ZNF674-AS1 not only reduced cell viability, colony formation, expression of drug-resistant markers but also promoted cell apoptosis of OXA-resistant GC cells, exposed to oxaliplatin. Silence of ZNF674-AS1 exhibited an opposite effects on OXA resistance of GC cells. Further mechanistic research showed that ZNF674-AS1 interacted with EZH2, led to higher methylation level of target gene CHST7. In addition, functional experiments verified that depletion of CHST7 re-sensitized OXA-resistant GC cells to OXA. Thus, our results indicated that ZNF674-AS1 suppressed OXA resistance of GC through EZH2-mediated inhibition of CHST7, providing potential theoretic basis and therapeutic strategy for chemoresistant GC.
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LINC01535 Attenuates ccRCC Progression through Regulation of the miR-146b-5p/TRIM2 Axis and Inactivation of the PI3K/Akt Pathway. JOURNAL OF ONCOLOGY 2022; 2022:2153337. [PMID: 35342411 PMCID: PMC8947867 DOI: 10.1155/2022/2153337] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 01/09/2023]
Abstract
lncRNAs, a group of eukaryotic cell genome-encoded transcripts, have been demonstrated to exert a notable impact on tumorigenesis. LINC01535, belonging to the lncRNA family, was reported to have an aberrant expression in certain types of cancers and thus affect cancer progression. Nevertheless, the expression pattern and potential roles of LINC01535 in clear cell renal cell carcinoma (ccRCC) remain to be elucidated. Here, LINC01535 expression was detected in ccRCC by RT-qPCR, cell proliferation by CCK-8 assays, and invasion by transwell assays. Besides, effects of LINC01535 on in vivo tumor growth were investigated by xenograft tumor models. The miR-146b-5p/LINC01535/TRIM2 interaction was evaluated via luciferase reporter assays. This study showed downregulation of LINC01535 in ccRCC. Moreover, LINC01535 upregulation attenuated in vitro ccRCC development and hindered in vivo tumor growth. Furthermore, LINC01535 sponged miR-146b-5p which had a negative correlation with LINC01535, and TRIM2 was a direct target of miR-146b-5p and mediated by LINC01535. Mechanically, LINC01535/miR-146b-5p/TRIM2 axis affected ccRCC progression by mediating the PI3K/Akt signaling. All in all, our observations suggest the LINC01535/miR-146b-5p/TRIM2 axis as a crucial role in ccRCC.
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Mirzaei S, Gholami MH, Hushmandi K, Hashemi F, Zabolian A, Canadas I, Zarrabi A, Nabavi N, Aref AR, Crea F, Wang Y, Ashrafizadeh M, Kumar AP. The long and short non-coding RNAs modulating EZH2 signaling in cancer. J Hematol Oncol 2022; 15:18. [PMID: 35236381 PMCID: PMC8892735 DOI: 10.1186/s13045-022-01235-1] [Citation(s) in RCA: 103] [Impact Index Per Article: 51.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/09/2022] [Indexed: 02/08/2023] Open
Abstract
Non-coding RNAs (ncRNAs) are a large family of RNA molecules with no capability in encoding proteins. However, they participate in developmental and biological processes and their abnormal expression affects cancer progression. These RNA molecules can function as upstream mediators of different signaling pathways and enhancer of zeste homolog 2 (EZH2) is among them. Briefly, EZH2 belongs to PRCs family and can exert functional roles in cells due to its methyltransferase activity. EZH2 affects gene expression via inducing H3K27me3. In the present review, our aim is to provide a mechanistic discussion of ncRNAs role in regulating EZH2 expression in different cancers. MiRNAs can dually induce/inhibit EZH2 in cancer cells to affect downstream targets such as Wnt, STAT3 and EMT. Furthermore, miRNAs can regulate therapy response of cancer cells via affecting EZH2 signaling. It is noteworthy that EZH2 can reduce miRNA expression by binding to promoter and exerting its methyltransferase activity. Small-interfering RNA (siRNA) and short-hairpin RNA (shRNA) are synthetic, short ncRNAs capable of reducing EZH2 expression and suppressing cancer progression. LncRNAs mainly regulate EZH2 expression via targeting miRNAs. Furthermore, lncRNAs induce EZH2 by modulating miRNA expression. Circular RNAs (CircRNAs), like lncRNAs, affect EZH2 expression via targeting miRNAs. These areas are discussed in the present review with a focus on molecular pathways leading to clinical translation.
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Affiliation(s)
- Sepideh Mirzaei
- Department of Biology, Faculty of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | | | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology and Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Farid Hashemi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, 1417466191, Tehran, Iran
| | - Amirhossein Zabolian
- Department of Orthopedics, School of Medicine, 5th Azar Hospital, Golestan University of Medical Sciences, Gorgan, Golestan, Iran
| | - Israel Canadas
- Blood Cell Development and Function Program, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - Ali Zarrabi
- Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University, Istanbul, 34396, Turkey
| | - Noushin Nabavi
- Department of Urological Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, V6H3Z6, Canada
| | - Amir Reza Aref
- Belfer Center for Applied Cancer Science, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
- Department of Translational Sciences, Xsphera Biosciences Inc., Boston, MA, USA
| | - Francesco Crea
- Cancer Research Group-School of Life Health and Chemical Sciences, The Open University, Walton Hall, Milton Keynes, MK7 6AA, UK
| | - Yuzhuo Wang
- Department of Urological Sciences and Vancouver Prostate Centre, University of British Columbia, Vancouver, BC, V6H3Z6, Canada.
| | - Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla, Istanbul, 34956, Turkey.
| | - Alan Prem Kumar
- Cancer Science Institute of Singapore and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117599, Singapore.
- NUS Centre for Cancer Research (N2CR), Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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Non-coding RNAs-EZH2 regulatory mechanisms in cervical cancer: The current state of knowledge. Biomed Pharmacother 2021; 146:112123. [PMID: 34915417 DOI: 10.1016/j.biopha.2021.112123] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 08/23/2021] [Accepted: 08/24/2021] [Indexed: 02/08/2023] Open
Abstract
Cervical cancer (CC) is among the leading causes of death in women worldwide. Both genetic and epigenetic regulators are required for the tumorigenesis and progression of CC. Non-coding RNAs (ncRNAs) are a group of RNAs that don't code for proteins yet constitute a large part of the human transcriptome, including long non-coding RNAs (lncRNAs), microRNAs (miRNAs), circular RNAs (circRNA), and other forms of non-coding RNAs. Deregulation of lncRNA, miRNA, and circRNA is implicated in the oncogenesis and development of cervical malignancies, acting as oncogenic drivers or tumor suppressors. Enhancer of zeste homolog 2 (EZH2) is the enzymatic subunit of Polycomb Repressive Complex 2 (PRC2), which functions to methylate histone H3 lysine 27 to silence gene transcription. Converging lines of evidence have revealed the oncogenic role played by EZH2 in cancers. EZH2 is upregulated in CC tissues with a robust correlation to the advanced stage, metastasis, and poor survival rate in patients. The elucidation of the roles of EZH2 in cancer has driven the development of therapeutic EZH2 inhibitors, which are approaching phase I or phase I/II clinical trials. Here we review the ncRNA-EZH2 regulatory pathways in CC that unify EZH2 and ncRNAs as an integrated system in the development of CC. Given the emerging findings for the role of the ncRNA-EZH2 regulatory axis in CC, it will be of great interest to develop novel therapeutic strategies based on their relationship.
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Lamsisi M, Wakrim L, Bouziyane A, Benhessou M, Oudghiri M, Laraqui A, Elkarroumi M, Ennachit M, El Mzibri M, Ennaji MM. The Biological Significance of Long noncoding RNAs Dysregulation and their Mechanism of Regulating Signaling Pathways in Cervical Cancer. INTERNATIONAL JOURNAL OF MOLECULAR AND CELLULAR MEDICINE 2021; 10:75-101. [PMID: 34703793 PMCID: PMC8496250 DOI: 10.22088/ijmcm.bums.10.2.75] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 08/01/2021] [Indexed: 12/19/2022]
Abstract
Despite the remarkable decrease in cervical cancer incidence due to the availability of the HPV vaccine and implementation of screening programs for early detection in developed countries, this cancer remains a major health problem globally, especially in developing countries where most of the cases and mortality occur. Therefore, more understanding of molecular mechanisms of cervical cancer development might lead to the discovery of more effective diagnosis and treatment options. Research on long noncoding RNAs (lncRNAs) demonstrates the important roles of these molecules in many physiological processes and diseases, especially cancer. In the present review, we discussed the significance of lncRNAs altered expression in cervical cancer, highlighting their roles in regulating highly conserved signaling pathways, such as mitogen-activated protein kinase (MAPK), Wnt/β-catenin, Notch, and phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT) pathways and their association with the progression of cervical cancer in order to bring more insight and understanding of this disease and their potential implications in cancer diagnosis and therapy.
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Affiliation(s)
- Maryame Lamsisi
- Team of Virology, Oncology and Medical Biotechnologies, Laboratory of Virology, Microbiology, Quality, and Biotechnologies/ ETB. Faculty of Science and Techniques Mohammedia, Hassan II University of Casablanca, Morocco.
| | - Lahcen Wakrim
- Laboratory of Virology, Pasteur Institute of Morocco. Casablanca, Morocco.
| | - Amal Bouziyane
- Team of Virology, Oncology and Medical Biotechnologies, Laboratory of Virology, Microbiology, Quality, and Biotechnologies/ ETB. Faculty of Science and Techniques Mohammedia, Hassan II University of Casablanca, Morocco.
- University Mohammed VI of Health Science, Casablanca, Morocco.
| | - Mustapha Benhessou
- Team of Virology, Oncology and Medical Biotechnologies, Laboratory of Virology, Microbiology, Quality, and Biotechnologies/ ETB. Faculty of Science and Techniques Mohammedia, Hassan II University of Casablanca, Morocco.
- School of Medicine and Pharmacy, University Hassan II of Casablanca, Morocco.
| | - Mounia Oudghiri
- Immunology and Biodiversity laboratory, Faculty of Sciences Ain chock, Hassan II University of Casablanca, Morocco.
| | - Abdelilah Laraqui
- Research and Biosafety Laboratory, Mohammed V Military Hospital, University Mohammed V of Rabat, Morocco.
| | - Mohamed Elkarroumi
- School of Medicine and Pharmacy, University Hassan II of Casablanca, Morocco.
| | - Mohammed Ennachit
- School of Medicine and Pharmacy, University Hassan II of Casablanca, Morocco.
| | | | - Moulay Mustapha Ennaji
- Corresponding author: Faculty of Science and Techniques Mohammedia, University Hassan II of Casablanca, Morocco. E-mail:
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Song H, Liu Y, Liang H, Jin X, Liu L. SPINT1-AS1 Drives Cervical Cancer Progression via Repressing miR-214 Biogenesis. Front Cell Dev Biol 2021; 9:691140. [PMID: 34350182 PMCID: PMC8326843 DOI: 10.3389/fcell.2021.691140] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Accepted: 06/28/2021] [Indexed: 01/15/2023] Open
Abstract
Accumulating evidences have revealed the dysregulated expressions and critical roles of non-coding RNAs in various malignancies, including cervical cancer. Nevertheless, our knowledge about the vast majority of non-coding RNAs is still lacking. Here we identified long non-coding RNA (lncRNA) SPINT1-AS1 as a novel cervical cancer-associated lncRNA. SPINT1-AS1 was increased in cervical cancer and correlated with advanced stage and poor prognosis. SPINT1-AS1 was a direct downstream target of miR-214, a well-known tumor suppressive microRNA (miRNA) in cervical cancer. Intriguingly, SPINT1-AS1 was also found to repress miR-214 biogenesis via binding DNM3OS, the primary transcript of miR-214. The interaction between SPINT1-AS1 and DNM3OS repressed the binding of DROSHA and DGCR8 to DNM3OS, blocked DNM3OS cleavage, and therefore repressed mature miR-214 biogenesis. The expression of SPINT1-AS1 was significantly negatively correlated with miR-214 in cervical cancer tissues, supporting the reciprocal repression between SPINT1-AS1 and miR-214 in vivo. Through downregulating mature miR-214 level, SPINT1-AS1 upregulated the expression of β-catenin, a target of miR-214. Thus, SPINT1-AS1 further activated Wnt/β-catenin signaling in cervical cancer. Functionally, SPINT1-AS1 drove cervical cancer cellular proliferation, migration, and invasion in vitro, and also tumorigenesis in vivo. Deletion of the region mediating the interaction between SPINT1-AS1 and DNM3OS, overexpression of miR-214, and inhibition of Wnt/β-catenin signaling all reversed the roles of SPINT1-AS1 in cervical cancer. Collectively, these findings identified SPINT1-AS1 as a novel cervical cancer-associated oncogenic lncRNA which represses miR-214 biogenesis and activates Wnt/β-catenin signaling, highlighting its potential as prognostic biomarker and therapeutic target for cervical cancer.
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Affiliation(s)
- Hongjuan Song
- Department of Gynecology, Xuzhou Maternal and Child Health Care Hospital, Xuzhou, China.,Department of Gynecology, Xuzhou Renci Hospital, Xuzhou, China
| | - Yuan Liu
- Department of Gynecology, Xuzhou Maternal and Child Health Care Hospital, Xuzhou, China
| | - Hui Liang
- Department of Cervical Disease, Xuzhou Maternal and Child Health Care Hospital, Xuzhou, China
| | - Xin Jin
- Medical Department, Xuzhou Central Hospital, Xuzhou, China
| | - Liping Liu
- Department of Research and Development, Shanghai Lichun Biotechnology Co., Ltd., Shanghai, China
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13
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Competing Endogenous RNAs in Cervical Carcinogenesis: A New Layer of Complexity. Processes (Basel) 2021. [DOI: 10.3390/pr9060991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
MicroRNAs (miRNAs) regulate gene expression by binding to complementary sequences within target mRNAs. Apart from working ‘solo’, miRNAs may interact in important molecular networks such as competing endogenous RNA (ceRNA) axes. By competing for a limited pool of miRNAs, transcripts such as long noncoding RNAs (lncRNAs) and mRNAs can regulate each other, fine-tuning gene expression. Several ceRNA networks led by different lncRNAs—described here as lncRNA-mediated ceRNAs—seem to play essential roles in cervical cancer (CC). By conducting an extensive search, we summarized networks involved in CC, highlighting the major impacts of such dynamic molecular changes over multiple cellular processes. Through the sponging of distinct miRNAs, some lncRNAs as HOTAIR, MALAT1, NEAT1, OIP5-AS1, and XIST trigger crucial molecular changes, ultimately increasing cell proliferation, migration, invasion, and inhibiting apoptosis. Likewise, several lncRNAs seem to be a sponge for important tumor-suppressive miRNAs (as miR-140-5p, miR-143-3p, miR-148a-3p, and miR-206), impairing such molecules from exerting a negative post-transcriptional regulation over target mRNAs. Curiously, some of the involved mRNAs code for important proteins such as PTEN, ROCK1, and MAPK1, known to modulate cell growth, proliferation, apoptosis, and adhesion in CC. Overall, we highlight important lncRNA-mediated functional interactions occurring in cervical cells and their closely related impact on cervical carcinogenesis.
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14
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Da Silva MLR, De Albuquerque BHDR, Allyrio TADMF, De Almeida VD, Cobucci RNDO, Bezerra FL, Andrade VS, Lanza DCF, De Azevedo JCV, De Araújo JMG, Fernandes JV. The role of HPV-induced epigenetic changes in cervical carcinogenesis (Review). Biomed Rep 2021; 15:60. [PMID: 34094536 PMCID: PMC8165754 DOI: 10.3892/br.2021.1436] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
Cervical cancer is associated with infection by certain types of human papillomaviruses (HPVs), and this affects women worldwide. Despite the improvements in prevention and cure of HPV-induced cervical cancer, it remains the second most common type of cancer in women in the least developed regions of the world. Epigenetic modifications are stable long-term changes that occur in the DNA, and are part of a natural evolutionary process of necessary adaptations to the environment. They do not result in changes in the DNA sequence, but do affect gene expression and genomic stability. Epigenetic changes are important in several biological processes. The effects of the environment on gene expression can contribute to the development of numerous diseases. Epigenetic modifications may serve a critical role in cancer cells, by silencing tumor suppressor genes, activating oncogenes, and exacerbating defects in DNA repair mechanisms. Although cervical cancer is directly related to a persistent high-risk HPV infection, several epigenetic changes have been identified in both the viral DNA and the genome of the infected cells: DNA methylation, histone modification and gene silencing by non-coding RNAs, which initiate and sustain epigenetic changes. In the present review, recent advances in the role of epigenetic changes in cervical cancer are summarized.
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Affiliation(s)
- Martha Laysla Ramos Da Silva
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | | | - Valéria Duarte De Almeida
- Department of Biomedical Sciences, State University of Rio Grande do Norte, Mossoro 59607-360, Brazil
| | | | - Fabiana Lima Bezerra
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Vania Sousa Andrade
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - Daniel Carlos Ferreira Lanza
- Laboratory of Applied Molecular Biology, Department of Biochemistry, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | | | - Josélio Maria Galvão De Araújo
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
| | - José Veríssimo Fernandes
- Department of Microbiology and Parasitology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil.,Post-Graduate Program in Parasite Biology, Federal University of Rio Grande do Norte, Natal 59078-970, Brazil
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15
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Zhao C, Jiang Q, Chen L, Chen W. LncRNA LINC01535 promotes colorectal cancer development and chemoresistance by sponging miR-761. Exp Ther Med 2021; 22:685. [PMID: 33986850 PMCID: PMC8112154 DOI: 10.3892/etm.2021.10117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 03/24/2021] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common human cancer types and a leading cause of cancer-related death. Accumulating evidence has confirmed that long non-coding RNAs have crucial roles in CRC progression. In the present study, the biological roles of LINC01535 were investigated and the interaction between long intergenic non-coding RNA (LINC)01535 and microRNA (miR)-761 in CRC was explored. LINC01535 expression was observed to be upregulated in CRC tissues and cell lines. A functional study suggested that LINC01535 silencing inhibited CRC cell proliferation and invasion but enhanced cisplatin sensitivity of CRC cells, while co-transfection with a miR-761 inhibitor reversed these biological effects. A luciferase reporter assay demonstrated that LINC01535 regulated miR-761 directly and RNA-binding protein immunoprecipitation further confirmed that the suppression of LINC01535 by miR-761 was via an RNA-induced silencing complex. Finally, knockdown of LINC01535 inhibited the growth of CRC cells in vivo. Collectively, the results suggested that LINC01535 exerts oncogenic functions in CRC by sponging miR-761. In conclusion, the present study indicated that LINC01535 promoted CRC progression through sponging miR-761, and may serve as a potential diagnostic biomarker and therapeutic target for CRC.
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Affiliation(s)
- Changjie Zhao
- Endoscopy Center, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
| | - Qi Jiang
- Department of Gastroenterology, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
| | - Lin Chen
- Department of Gastroenterology, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
| | - Wei Chen
- Department of Gastroenterology, Affiliated Dongtai Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
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16
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Huang K, Tang Y. SChLAP1 promotes prostate cancer development through interacting with EZH2 to mediate promoter methylation modification of multiple miRNAs of chromosome 5 with a DNMT3a-feedback loop. Cell Death Dis 2021; 12:188. [PMID: 33589600 PMCID: PMC7884413 DOI: 10.1038/s41419-021-03455-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 01/07/2021] [Accepted: 01/19/2021] [Indexed: 12/20/2022]
Abstract
This study aimed to investigate the mechanism of SChLAP1 (second chromosome locus associated with prostate-1) on microRNA expression in prostate cancer. Differential expression of lncRNAs and microRNA prostate cancer cells were predicted by informatics and confirmed by qRT-PCR. SChLAP1-interacting proteins were characterized by RNA pull-down combined with western blotting, which was verified using RIP and qPCR analysis. Then ChIP assay and DNA pull-down were used to validate the binding of DNMT3a and HEK27me3 with miRNA gene promoters. Target genes of miRNAs were bioinformatically predicted and validated by dual-luciferase reporter assays. The tumorigenicity of prostate cancer cells was assessed using the cancer cell line-based xenograft (CDX) model. We found that SChLAP1 expression was significantly elevated in prostate cancer tissues and cell lines, which was negatively correlated with miR-340 expression. SChLAP1 directly binds with EZH2 and repressed multiple miRNA expression on chromosome 5 including the miR-340-3p in prostate cancer cells through recruiting H3K27me3 to mediate promoter methylation modification of miR-340-5p/miR-143-3p/miR-145-5p to suppress gene transcription. Moreover, DNMT3a was one of the common target genes of miR-340-5p/miR-143-3p/miR-145-5p in prostate cancer cells. And SChLAP1/EZH2 could also promote prostate cancer tumor development via the interaction of microRNA-DNMT3a signaling pathways in xenograft nude mice. Altogether, our results suggest that SChLAP1 enhanced the proliferation, migration, and tumorigenicity of prostate cancer cells through interacting with EZH2 to recruit H2K27me3 and mediate promoter methylation modification of miR-340-5p/miR-143-3p/miR-145-5p with a DNMT3a-feedback loop.
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Affiliation(s)
- Kai Huang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, P.R. China
| | - Yuxin Tang
- Department of Urology, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan Province, P.R. China.
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17
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Xiu C, Song R, Jiang J. TUG1 promotes retinoblastoma progression by sponging miR-516b-5p to upregulate H6PD expression. Transl Cancer Res 2021; 10:738-747. [PMID: 35116405 PMCID: PMC8799124 DOI: 10.21037/tcr-19-1480] [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: 08/06/2019] [Accepted: 02/08/2020] [Indexed: 12/16/2022]
Abstract
Background Retinoblastoma (RB), depicted as an aggressive eye cancer, mainly occurs in infancy and childhood and is followed by high mortality and poor prognosis. Increasing evidence has revealed that long noncoding RNA taurine upregulated gene 1 (TUG1) is closely linked to the progression of diverse cancers. Nonetheless, the specific function and molecular regulatory mechanism of TUG1 in RB still need to be explored. Methods To explore the specific role of TUG1 in RB. TUG1 expression was detected by real-time quantitative polymerase chain reaction (RT-qPCR). Cell counting kit-8 (CCK-8), colony formation, 5-ethynyl-2’-deoxyuridine (EdU), caspase-3, terminal-deoxynucleotidyl transferase mediated nick end labeling (TUNEL) and western blot assays were utilized to study the role of TUG1 in RB. The binding relation between miR-516b-5p and TUG1 or hexose-6-phosphate dehydrogenase/glucose 1-dehydrogenase (H6PD) was analyzed by luciferase reporter and RNA immunoprecipitation (RIP) assays. Results The expression of TUG1 was upregulated in RB cells. TUG1 knockdown repressed proliferation ability and promoted apoptosis ability of RB cells. Moreover, TUG1 could bind with miR-516b-5p, which targeted H6PD in RB. In addition, the expression of H6PD was negatively and positively regulated by miR-516b-5p and TUG1 in RB, respectively. Finally, H6PD overexpression could partially offset the effects of TUG1 deficiency on cell proliferation and apoptosis. Conclusions TUG1 promoted the development of RB by sponging miR-516b-5p to upregulate H6PD expression, which might provide a new thought for researching RB-related molecular mechanism.
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Affiliation(s)
- Caimei Xiu
- Department of Ophthalmology, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Ruiying Song
- Department of Ophthalmology, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
| | - Jing Jiang
- Department of Ophthalmology, the Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, China
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18
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Ashrafizadeh M, Gholami MH, Mirzaei S, Zabolian A, Haddadi A, Farahani MV, Kashani SH, Hushmandi K, Najafi M, Zarrabi A, Ahn KS, Khan H. Dual relationship between long non-coding RNAs and STAT3 signaling in different cancers: New insight to proliferation and metastasis. Life Sci 2021; 270:119006. [PMID: 33421521 DOI: 10.1016/j.lfs.2020.119006] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022]
Abstract
Uncontrolled growth and metastasis of cancer cells is an increasing challenge for overcoming cancer, and improving survival of patients. Complicated signaling networks account for proliferation and invasion of cancer cells that need to be elucidated for providing effective cancer therapy, and minimizing their malignancy. Long non-coding RNAs (lncRNAs) are RNA molecules with a length of more than 200 nucleotides. They participate in cellular events, and their dysregulation in a common phenomenon in different cancers. Noteworthy, lncRNAs can regulate different molecular pathways, and signal transducer and activator of transcription 3 (STAT3) is one of them. STAT3 is a tumor-promoting factors in cancers due to its role in cancer proliferation (cell cycle progression and apoptosis inhibition) and metastasis (EMT induction). LncRNAs can function as upstream mediators of STAT3 pathway, reducing/enhancing its expression. This dual relationship is of importance in affecting proliferation and metastasis of cancer cells. The response of cancer cells to therapy such as chemotherapy and radiotherapy is regulated by lncRNA/STAT3 axis. Tumor-promoting lncRNAs including NEAT1, SNHG3 and H19 induces STAT3 expression, while tumor-suppressing lncRNAs such as MEG3, PTCSC3 and NKILA down-regulate STAT3 expression. Noteworthy, upstream mediators of STAT3 such as microRNAs can be regulated by lncRNAs. These complicated signaling networks are mechanistically described in the current review.
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Affiliation(s)
- Milad Ashrafizadeh
- Faculty of Engineering and Natural Sciences, Sabanci University, Orta Mahalle, Üniversite Caddesi No. 27, Orhanlı, Tuzla 34956, Istanbul, Turkey; Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla 34956, Istanbul, Turkey
| | | | - Sepideh Mirzaei
- Department of Biology, Faculty of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Amirhossein Zabolian
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Amirabbas Haddadi
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | | | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology & Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanshah University of Medical Sciences, Kermanshah 6715847141, Iran; Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla 34956, Istanbul, Turkey.
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Republic of Korea; KHU-KIST Department of Converging Science and Technology, Kyung Hee University, Seoul 02447, Republic of Korea.
| | - Haroon Khan
- Department of Pharmacy, Abdul Wali Khan University, Mardan 23200, Pakistan.
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19
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Razavi ZS, Tajiknia V, Majidi S, Ghandali M, Mirzaei HR, Rahimian N, Hamblin MR, Mirzaei H. Gynecologic cancers and non-coding RNAs: Epigenetic regulators with emerging roles. Crit Rev Oncol Hematol 2020; 157:103192. [PMID: 33290823 DOI: 10.1016/j.critrevonc.2020.103192] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 12/24/2022] Open
Abstract
Gynecologic cancers involve the female genital organs, such as the vulva, vagina, cervix, endometrium, ovaries, and fallopian tubes. The occurrence and frequency of gynecologic cancer depends on personal lifestyle, history of exposure to viruses or carcinogens, genetics, body shape, and geographical habitat. For a long time, research into the molecular biology of cancer was broadly restricted to protein-coding genes. Recently it has been realized that non-coding RNAs (ncRNA), including long noncoding RNAs (LncRNAs), microRNAs, circular RNAs and piRNAs (PIWI-interacting RNAs), can all play a role in the regulation of cellular function within gynecological cancer. It is now known that ncRNAs are able to play dual roles, i.e. can exert both oncogenic or tumor suppressive functions in gynecological cancer. Moreover, several clinical trials are underway looking at the biomarker and therapeutic roles of ncRNAs. These efforts may provide a new horizon for the diagnosis and treatment of gynecological cancer. Herein, we summarize some of the ncRNAs that have been shown to be important in gynecological cancers.
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Affiliation(s)
| | - Vida Tajiknia
- Department of Surgery, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Shahab Majidi
- Student Research Committee, Fasa University of Medical Sciences, Fasa, Iran
| | - Maryam Ghandali
- School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Mirzaei
- Department of Medical Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Rahimian
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences (IUMS), Tehran, Iran.
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA, 02114, USA; Department of Dermatology, Harvard Medical School, Boston, MA, 02115, USA; Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa.
| | - Hamed Mirzaei
- Research Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
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20
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Chen S, Huang L, Li G, Qiu F, Wang Y, Yang C, Pan J, Wu Z, Chen J, Tian Y. LncRNA STXBP5-AS1 suppresses stem cell-like properties of pancreatic cancer by epigenetically inhibiting neighboring androglobin gene expression. Clin Epigenetics 2020; 12:168. [PMID: 33160411 PMCID: PMC7648265 DOI: 10.1186/s13148-020-00961-y] [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: 07/10/2020] [Accepted: 10/27/2020] [Indexed: 02/06/2023] Open
Abstract
Previous studies suggest the tumor suppressor role of long non-coding RNA (lncRNA) STXBP5-AS1 in cervical and gastric cancer, but its expression pattern and functional mechanism are still elusive in pancreatic cancer (PC). Relative expression of STXBP5-AS1 in PC both in vivo and in vitro was analyzed by real-time PCR. IC50 of Gemcitabine was determined by the MTT assay. Cell proliferation in response to drug treatment was investigated by colony formation assay. Cell apoptosis was measured by both caspase-3 activity and Annexin V/PI staining. Cell invasion capacity was scored by the transwell assay in vitro, and lung metastasis was examined with the tail vein injection assay. Cell stemness was determined in vitro by sphere formation and marker profiling, respectively, and in vivo by limited dilution of xenograft tumor incidence. Subcellular localization of STXBP5-AS1 was analyzed with fractionation PCR. Association between STXBP5-AS1 and EZH2 was investigated by RNA-immunoprecipitation. The binding of EZH2 on ADGB promoter was analyzed by chromatin immunoprecipitation. The methylation was quantified by bisulfite sequencing. We showed downregulation of STXBP5-AS1 in PC associated with poor prognosis. Ectopic STXBP5-AS1 inhibited chemoresistance and metastasis of PC cells. In addition, STXBP5-AS1 compromised stemness of PC cells. Mechanistically, STXBP5-AS1 potently recruited EZH2 and epigenetically regulated neighboring ADGB transcription, which predominantly mediated the inhibitory effects of STXBP5-AS1 on stem cell-like properties of PC cells. Our study highlights the importance of the STXBP5-EZH2-ADGB axis in chemoresistance and stem cell-like properties of PC.
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Affiliation(s)
- Shi Chen
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China.
| | - Long Huang
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China
| | - Ge Li
- Department of Hepatobiliary Surgery, Union Hospital, Fujian Medical University, Fuzhou, 350001, Fujian, China
| | - Funan Qiu
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China
| | - Yaodong Wang
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China
| | - Can Yang
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China
| | - Jingjing Pan
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China
| | - Zhangwei Wu
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China
| | - Jiangzhi Chen
- Department of Hepatobiliary Surgery, Union Hospital, Fujian Medical University, Fuzhou, 350001, Fujian, China.
| | - Yifeng Tian
- Department of Hepato-Biliary-Pancreatic Surgery, Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fujian Medical University, No. 134 East Street, Fuzhou, 350001, Fujian, China.
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21
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Liu Y, Wang Y, Shen X, Chen C, Ni H, Sheng N, Hua M, Wu Y. Down-regulation of lncRNA PCGEM1 inhibits cervical carcinoma by modulating the miR-642a-5p/LGMN axis. Exp Mol Pathol 2020; 117:104561. [PMID: 33121976 DOI: 10.1016/j.yexmp.2020.104561] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 07/30/2020] [Accepted: 10/23/2020] [Indexed: 02/08/2023]
Abstract
LncRNA PCGEM1 (PCGEM1) has been reported to exert essential effects on the development and progress of various tumors, while the detailed effects and possible mechanisms of PCGEM1 in cervical carcinoma remain unknown. In the present study, PCGEM1 was over-expressed in cervical carcinoma cells as evidenced by real-time quantitative polymerase chain reaction (RT-qPCR) assay. Knockdown of PCGEM1 significantly repressed proliferation, migration, and invasion, while induced G1 arrest in cervical carcinoma cells. In addition, PCGEM1 was predicted to target miR-642a-5p by bioinformatics software, which was further confirmed by luciferase reporter assay. Besides, RT-qPCR assay indicated that miR-642a-5p expression was decreased in cervical carcinoma cells and knockdown of PCGEM1 could accelerate miR-642a-5p expression. Moreover, inhibition of miR-642a-5p partly abolished the functions of PCGEM1 knockdown on proliferation, cell cycle, migration and invasion of cervical carcinoma cells. Furthermore, miR-642a-5p could bind to the 3'-UTR of LGMN, which was over-expressed in the cervical carcinoma cells. Suppression of LGMN partly restored the functions of miR-642a-5p inhibitor on proliferation, cell cycle distribution, migration and invasion in the cervical carcinoma cells treated with the PCGEM1 shRNA. Taken together, our data indicated that knockdown of PCGEM1 inhibited proliferation, migration and invasion in cervical carcinoma by modulating the miR-642a-5p/ LGMN axis.
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Affiliation(s)
- Yuanlin Liu
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China.
| | - Ye Wang
- Shanghai Hanghua International Shipping Agency Co. LTD, Shanghai, China
| | - Xiang Shen
- Department of Stomatology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Chen Chen
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Huihua Ni
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Nan Sheng
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Minhui Hua
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China
| | - Yanling Wu
- Department of Obstetrics and Gynecology, Affiliated Hospital of Nantong University, Nantong 226001, China
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22
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Gao L, Li X, Nie X, Guo Q, Liu Q, Qi Y, Liu J, Lin B. Construction of novel mRNA-miRNA-lncRNA regulatory networks associated with prognosis of ovarian cancer. J Cancer 2020; 11:7057-7072. [PMID: 33123295 PMCID: PMC7592000 DOI: 10.7150/jca.49557] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/02/2020] [Indexed: 12/11/2022] Open
Abstract
Background: Ovarian cancer (OC) is the most lethal malignancy in the female reproductive system. Growing evidences demonstrates that competing endogenous RNA (ceRNA) network play crucial roles in the occurrence and progression of tumors. Therefore, we aimed to explore and identify novel mRNA-miRNA-lncRNA ceRNA networks associated with prognosis of OC. Methods: The differentially expressed gene (DEGs) of four expression profiles datasets (GSE5438, GSE40595, GSE38666 and GSE26712) were collected from Gene Expression Omnibus (GEO) database and analyzed with NetworkAnalyst. Intersection of DEGs were further employed for Gene Ontology (GO) and Kyoto Encyclopedia of Gene and Genome (KEGG) pathway analysis. Protein-protein interaction (PPI) network and hub genes of DEGs were also identified. The expression levels and survival analysis of the hub genes in OC and their upstream miRNAs and lncRNAs were performed by various bioinformatics databases. More importantly, ceRNA networks were constructed based on mRNA-miRNA-lncRNA in OC. Results: A total of 178 DEGs including 38 upregulated and 140 downregulated genes from intersected DEGs of four expression profiles were identified in OC. Functional enrichment analysis suggested that the commonly DEGs were enriched in regulating enzyme inhibitor activity, glycosaminoglycan and G protein-coupled receptor binding, cell morphogenesis, and involved in pathways including metabolic process, proteoglycans in cancer. Top 10 hub genes with higher connectivity degree were selected for subsequent expression and prognosis analysis. After take expression levels and prognostic roles of hub genes and their upstream miRNAs and lncRNAs in OC into consideration, 2 mRNAs (TACC3 and CXCR4), 2 miRNAs (hsa-miR-425-5p and hsa-miR-146a-5p) and 3 lncRNAs (FUT8-AS1, LINC00665 and LINC01535) were significantly associated with the poor prognosis of OC. The mRNA-miRNA-lncRNA networks (TACC3-hsa-miR-425-5p-FUT8-AS1 and CXCR4-hsa-miR-146a-5p-LINC00665/LINC01535) were eventually constructed in OC based on ceRNA mechanism. Conclusion: We successfully constructed novel ceRNA network associated with the prognosis of ovarian cancer, which may provide a new strategy for early diagnosis and therapeutic intervention of OC.
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Affiliation(s)
- Lingling Gao
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Xiao Li
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Xin Nie
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Qian Guo
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Qing Liu
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Yue Qi
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Juanjuan Liu
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
| | - Bei Lin
- Department of Obstetrics and Gynaecology, Shengjing Hospital of China Medical University, No.36 Sanhao Street, Heping District, Shenyang, 110004, Liaoning, China
- Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Liaoning, China
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Chen Q, Hu L, Huang D, Chen K, Qiu X, Qiu B. Six-lncRNA Immune Prognostic Signature for Cervical Cancer. Front Genet 2020; 11:533628. [PMID: 33173530 PMCID: PMC7591729 DOI: 10.3389/fgene.2020.533628] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 09/21/2020] [Indexed: 12/13/2022] Open
Abstract
Background This study searched for immune-related long noncoding RNAs (lncRNAs) to predict the prognosis of patients with cervical cancer. Method We obtained immunologically relevant lncRNA expression profiles and clinical follow-up data from cervical cancer patients from The Cancer Genome Atlas database and the Molecular Signatures Database. Cervical cancer patients were randomly divided into a training group, testing group and combined group. The immune prognostic signature was constructed by Least Absolute Shrinkage and Selection Operator Cox regression, prognosis was analyzed by Kaplan-Meier curves between different groups, and the accuracy of the prognostic model was assessed by receiver operating characteristic-area under the curve (ROC-AUC) analysis. Results A six-lncRNA immune prognostic signature (LIPS) was constructed to predict the prognosis of cervical cancer. The six lncRNAs are as follows: AC009065.8, LINC01871, MIR210HG, GEMIN7-AS1, GAS5-AS1, and DLEU1. A ROC-AUC analysis indicated that the model could predict the prognosis of cervical cancer patients in different subgroups. A Kaplan-Meier analysis showed that patients with high risk scores had a poor prognosis; these results were equally meaningful in the subgroup analyses. Risk scores differed depending on the clinical pathology and tumor grade and were independent risk factors for cervical cancer prognosis. Gene set enrichment analysis revealed an association between the LIPS and the immune response, Wnt signaling pathway, and TGF beta signaling pathway. Conclusion Our study shows that the six-LIPS can predict the prognosis of cervical cancer and contribute to decisions regarding the immunotherapeutic strategy.
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Affiliation(s)
- Qian Chen
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Lang Hu
- Guangxi Medical University Cancer Hospital, Nanning, China
| | - Dongping Huang
- Department of Nutrition, School of Public Health, Guangxi Medical University, Nanning, China
| | - Kaihua Chen
- Department of Radiation Oncology, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xiaoqiang Qiu
- Department of Epidemiology, School of Public Health, Guangxi Medical University, Nanning, China
| | - Bingqing Qiu
- Department of Nuclear Medicine, Guangxi Medical University Cancer Hospital, Nanning, China
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Yao X, Wu L, Gu Z, Li J. LINC01535 Promotes the Development of Osteosarcoma Through Modulating miR-214-3p/KCNC4 Axis. Cancer Manag Res 2020; 12:5575-5585. [PMID: 32753970 PMCID: PMC7354912 DOI: 10.2147/cmar.s232757] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 05/09/2020] [Indexed: 12/26/2022] Open
Abstract
Background Osteosarcoma (OS) is the most common primary bone tumor in group of children and adolescents. Increasing studies showed that long non-coding RNAs (lncRNAs) exerted important functions in the development of tumors, including OS. LINC01535 is an lncRNA which has been studied in cervical cancer but not in OS. Aim of the Study This study was aimed to explore the biological function and mechanism of LINC01535 in OS. Methods LINC01535 expression was detected by qRT-PCR. Colony formation assay, EdU assay and CCK-8 assay were applied to check cell proliferation ability in OS. Flow cytometry analysis was conducted to measure cell apoptosis capacity. Wound healing assay and transwell assay were performed to assess cell migration and invasion. Luciferase reporter assay and RNA pull-down assay were carried out to verify the molecular mechanism. Results The high expression of LINC01535 was presented in OS tissues and cell lines compared with adjacent normal tissues and human osteoblasts. Moreover, OS patients with high LINC01535 expression exhibited poor prognosis. Loss-of-function assay revealed that silenced LINC01535 significantly attenuated cell proliferation, migration and invasion, and enhanced cell apoptosis in OS. Through mechanistic exploration, we found that LINC01535 interacted with miR-214-3p, and KCNC4 was validated to be a target gene of miR-214-3p. The levels of KCNC4 mRNA and protein were positively modulated by LINC01535 and reversely mediated by miR-214-3p. Based on rescue experiments, KCNC4 overexpression reserved the suppressive function of silenced LINC01535 on OS cell growth, migration and invasion. Conclusion LINC01535, miR-214-3p and KCNC4 constituted an effective axis that exerted a pregnant regulation in OS development, which is a quite meaningful discovery for exploring potential therapeutic methods for OS patients.
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Affiliation(s)
- Xiaoke Yao
- Department of Orthopedics, Chengdu First People's Hospital, Chengdu 610041, Sichuan, People's Republic of China
| | - Lingna Wu
- Intensive Care Unit, Chengdu First People's Hospital, Chengdu, Sichuan, 610041, People's Republic of China
| | - Zuchao Gu
- Department of Orthopedics, Chengdu First People's Hospital, Chengdu 610041, Sichuan, People's Republic of China
| | - Jianhua Li
- Department of Orthopedics, Chengdu First People's Hospital, Chengdu 610041, Sichuan, People's Republic of China
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25
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He J, Huang B, Zhang K, Liu M, Xu T. Long non-coding RNA in cervical cancer: From biology to therapeutic opportunity. Biomed Pharmacother 2020; 127:110209. [PMID: 32559848 DOI: 10.1016/j.biopha.2020.110209] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/25/2020] [Accepted: 04/28/2020] [Indexed: 01/06/2023] Open
Abstract
Genome regions that do not for code for proteins are generally transcribed into long non-coding RNAs. Growing evidence reveals that lncRNAs, defined as transcripts longer than 200 nucleotides, are commonly deregulated in cervical malignancies. New sequencing technologies have revealed a complete picture of the composition of the human transcriptome. LncRNAs perform diverse functions at transcriptional, translation, and post-translational levels through interactions with proteins, RNA and DNA. In the past decade, studies have shown that lncRNAs participate in the pathogenesis of many diseases, including cervical cancer. Hence, illuminating the roles of lncRNA will improve our understanding of cervical cancer. In this work, we summarize the current knowledge on lncRNAs in cervical cancer. We describe the emerging roles of lncRNAs in cervical cancer, particularly in cancer progression, metastasis, treatment resistance, HPV regulation, and metabolic reprogramming. The great promises of lncRNAs as potential biomarkers for cervical cancer diagnosis and prognosis are also discussed. We discuss current technologies used to target lncRNAs and thus control cancers, such as antisense oligonucleotides, CRISPR-Cas9, and exosomes. Overall, we show that lncRNAs hold great potentials as therapeutic agents and innovative biomarkers. Finally, further clinical research is necessary to advance our understanding of the therapeutic value of lncRNAs in cervical cancer.
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Affiliation(s)
- Jiaxing He
- Department of Obstetrics and Gynecology, The Second Clinical Hospital of Jilin University, Changchun, China
| | - Bingyu Huang
- Department of Obstetrics and Gynecology, The Second Clinical Hospital of Jilin University, Changchun, China
| | - Kun Zhang
- Department of Obstetrics and Gynecology, The Second Clinical Hospital of Jilin University, Changchun, China
| | - Mubiao Liu
- Department of Obstetrics and Gynecology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Tianmin Xu
- Department of Obstetrics and Gynecology, The Second Clinical Hospital of Jilin University, Changchun, China.
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26
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Guo Q, Zhang Q, Lu L, Xu Y. Long noncoding RNA RUSC1-AS1 promotes tumorigenesis in cervical cancer by acting as a competing endogenous RNA of microRNA-744 and consequently increasing Bcl-2 expression. Cell Cycle 2020; 19:1222-1235. [PMID: 32264732 DOI: 10.1080/15384101.2020.1749468] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The expression of a long noncoding RNA termed RUSC1-AS1 is dysregulated in breast cancer and laryngeal squamous cell carcinoma, and this dysregulation affects various tumor-associated biological processes. To our knowledge, the expression status and detailed roles of RUSC1-AS1 in cervical cancer as well as its regulatory mechanisms of action remain unknown. Therefore, the objectives of this study were to measure RUSC1-AS1 expression in cervical cancer, investigate the effects of RUSC1-AS1 on cervical cancer cells, and identify the mechanism underlying these effects. Herein, RUSC1-AS1 was found to be highly expressed in cervical cancer tissues and cell lines. High RUSC1-AS1 expression significantly correlated with the International Federation of Gynecology and Obstetrics (FIGO) stage, lymph node metastasis, and shorter overall survival among the patients with cervical cancer. Functional assays revealed that interference with RUSC1-AS1 expression suppressed cervical cancer cell proliferation, migration, and invasion in vitro; induced apoptosis in vitro; and impeded tumor growth in vivo. In addition, RUSC1-AS1 was demonstrated to act as a competing endogenous RNA of microRNA-744 (miR-744) and consequently increase B-cell lymphoma 2 (Bcl-2 or BCL2) expression levels in cervical cancer cells. Furthermore, either inhibition of miR-744 or restoration of Bcl-2 expression neutralized the effects of the RUSC1-AS1 silencing on the malignant characteristics of cervical cancer cells. Thus, RUSC1-AS1 promotes the aggressiveness of cervical cancer in vitro and in vivo by upregulating miR-744-Bcl-2 axis output. The RUSC1-AS1-miR-744-Bcl-2 pathway may be involved in cervical cancer pathogenesis and could serve as a novel target for anticancer therapies.
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Affiliation(s)
- Qizhen Guo
- Department of Gynaecology and Obstetrics, Gaomi People's Hospital, Gaomi, Shandong, P.R. China
| | - Qin Zhang
- Department of Neurosurgery, Gaomi People's Hospital, Gaomi, Shandong, P.R. China
| | - Lianwei Lu
- Department of Radiology, Weifang People's Hospital, Weifang, Shandong, P.R. China
| | - Yanping Xu
- Department of General Surgery, Gaomi People's Hospital, Gaomi, Shandong, P.R. China
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27
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Zhang J, Lou W. A Key mRNA-miRNA-lncRNA Competing Endogenous RNA Triple Sub-network Linked to Diagnosis and Prognosis of Hepatocellular Carcinoma. Front Oncol 2020; 10:340. [PMID: 32257949 PMCID: PMC7092636 DOI: 10.3389/fonc.2020.00340] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 02/26/2020] [Indexed: 01/27/2023] Open
Abstract
Growing evidence has illustrated critical roles of competing endogenous RNA (ceRNA) regulatory network in human cancers including hepatocellular carcinoma. In this study, we aimed to find promising diagnostic and prognostic biomarkers for patients with hepatocellular carcinoma. Three novel unfavorable prognosis-associated genes (CELSR3, GPSM2, and CHEK1) was first identified. We also demonstrated that these genes were significantly upregulated in hepatocellular carcinoma cell lines and tissues. Next, 154 potential miRNAs of CELSR3, GPSM2, and CHEK1 were predicted. CHEK1-hsa-mir-195-5p/hsa-mir-497-5p and GPSM2-hsa-mir-122-5p axes were defined as two key pathways in carcinogenesis of hepatocellular carcinoma by combination of in silico analysis and experimental validation. Subsequently, lncRNAs binding to hsa-mir-195-5p, hsa-mir-497-5p, and hsa-mir-122-5p were predicted via starBase and miRNet databases. After performing expression analysis and survival analysis for these predicted lncRNAs, we showed that nine lncRNAs (SNHG1, SNHG12, LINC00511, HCG18, FGD5-AS1, CERS6-AS1, NUTM2A-AS1, SNHG16, and ASB16-AS1) were markedly increased in hepatocellular carcinoma and their upregulation indicated poor prognosis. Moreover, a similar mRNA-miRNA-lncRNA analysis for six “known” genes (CLEC3B, DNASE1L3, PTTG1, KIF2C, XPO5, and UBE2S) was performed. Subsequently, a comprehensive mRNA-miRNA-lncRNA triple ceRNA network linked to prognosis of patients with hepatocellular carcinoma was established. Moreover, all RNAs in this network exhibited significantly diagnostic values for patients with hepatocellular carcinoma. In summary, the current study constructed a mRNA-miRNA-lncRNA ceRNA network associated with diagnosis and prognosis of hepatocellular carcinoma.
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Affiliation(s)
- Junjie Zhang
- Department of Hepatobiliary Surgery, The First People's Hospital of Fuyang Hangzhou, Hangzhou, China
| | - Weiyang Lou
- Department of Breast Surgery, The First Affiliated Hospital of Zhejiang University, College of Medicine, Zhejiang University, Hangzhou, China
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28
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Luo F, Zhou Z, Cai J, Du W. DUB3 Facilitates Growth and Inhibits Apoptosis Through Enhancing Expression of EZH2 in Oral Squamous Cell Carcinoma. Onco Targets Ther 2020; 13:1447-1460. [PMID: 32110043 PMCID: PMC7035907 DOI: 10.2147/ott.s230577] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 01/15/2020] [Indexed: 12/23/2022] Open
Abstract
Background Here, we probed the action mechanism of ubiquitin-specific processing proteases 17 (DUB3) in the evolution of oral squamous cell carcinoma (OSCC). Methods The expression of genes were calculated by qRT-PCR, and proteins were assessed by Western blot and immunohistochemistry. The cells viability and proliferation were checked by MTT and EdU assay, respectively. Flow cytometry was implemented to detect the cell cycle and apoptosis. The activity of EZH2 gene promoter was measured by luciferase reporter assay. Co-immunoprecipitation assay was used to ensure the ubiquitination of bromodomain-containing protein 4 (BRD4). The cell apoptosis of tumor tissues was assessed by TUNEL assay. Results DUB3 was overexpressed in OSCC tissues and cell lines, and negatively correlated with patient’s survival time. DUB3 downregulation could effectively curb OSCC cells viability and proliferation, promote cell apoptosis and the expression of cleaved-caspase-3, cleaved PARP and p21, while inhibit cyclin D1. Besides, DUB3 production was positivity correlated with enhancer of zeste homolog-2 (EZH2) and BRD4. BRD4 downregulation could repress DUB3-induced EZH2 production, and MG132 reversed DUB3 decreasing-mediated BRD4 downregulation. Downregulation of DUB3 promoted BRD4 ubiquitination. DUB3 promoted OSCC cells proliferation, while suppressing apoptosis via facilitating EZH2 production. At last, in vivo experiment indicated that the downregulation of DUB3 significantly inhibited the growth of xenograft tumor. Conclusion In summary, we found that DUB3 enhanced OSCC cells proliferation and xenograft tumor growth, while inhibited their apoptosis via promoting BRD4-mediated upregulation of EZH2. Our study indicated that DUB3 may be an effective anti-cancer target for OSCC therapy.
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Affiliation(s)
- Fei Luo
- Department of Oncology, First People's Hospital of Jinzhou, Jinzhou 434000, People's Republic of China
| | - Zunyan Zhou
- Department of Oncology, First People's Hospital of Jinzhou, Jinzhou 434000, People's Republic of China
| | - Jun Cai
- Department of Oncology, First People's Hospital of Jinzhou, Jinzhou 434000, People's Republic of China
| | - Wei Du
- Department of Oncology, First People's Hospital of Jinzhou, Jinzhou 434000, People's Republic of China
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Liu M, Wang P, Sui X, Ding F, Liu L, Gao Z, Cheng Z. Circular RNA circABCC4 regulates lung adenocarcinoma progression via miR-3186-3p/TNRC6B axis. J Cell Biochem 2020; 121:4226-4238. [PMID: 31960988 DOI: 10.1002/jcb.29627] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/11/2019] [Indexed: 12/20/2022]
Abstract
Lung adenocarcinoma (LUAD), a general kind of bronchogenic malignancy globally, is depicted as one of the most critical factors affecting human health severely. Featured with loop structure, circular RNA (circRNA) has been described as an essential regulator of multiple human malignancies. Nevertheless, knowledge concerning the regulatory function of circRNA in LUAD progression remains limited. Identified as a novel circRNA, circABCC4 has not been studied in LUAD as yet. This is the first time to probe into the underlying role of circABCC4 in LUAD. In this study, a notably elevated expression of circABCC4 was found in LUAD tissues and cells. Besides, circABCC4 is verified to be characterized with a circular structure in LUAD. Functional assays elucidated that knockdown of circABCC4 significantly impaired LUAD cell proliferation, migration as well as accelerated cell apoptosis. Molecular mechanism experiments later revealed that circABCC4 could bind with miR-3186-3p and miR-3186-3p was a tumor suppressor in LUAD. Moreover, TNRC6B was validated to combine with miR-3186-3p, and its expression was respectively negatively and positively regulated by miR-3186-3p and circABCC4 in LUAD. Final rescue experiments further delineated that TNRC6B upregulation partially restored circABCC4 downregulation-mediated effect on LUAD progression. In sum, circABCC4 regulates LUAD progression via miR-3186-3p/TNRC6B axis.
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Affiliation(s)
- Meijuan Liu
- Medical College of Qingdao University, Qingdao, Shandong, China.,Respiratory Department, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Pengwei Wang
- Department of Pediatrics, Weifang Maternal and Child Health Hospital, Weifang, Shandong, China
| | - Xiaomei Sui
- Radiotherapy Department, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Fang Ding
- Respiratory Department, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Li Liu
- Respiratory Department, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Zengyan Gao
- Respiratory Department, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Zhaozhong Cheng
- Respiratory Department, Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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30
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Song H, Liu Y, Jin X, Liu Y, Yang Y, Li L, Wang X, Li G. Long non-coding RNA LINC01535 promotes cervical cancer progression via targeting the miR-214/EZH2 feedback loop. J Cell Mol Med 2019; 23:6098-6111. [PMID: 31273925 PMCID: PMC6714211 DOI: 10.1111/jcmm.14476] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 05/12/2019] [Accepted: 05/15/2019] [Indexed: 02/06/2023] Open
Abstract
Long non‐coding RNAs (lncRNAs) have shown critical roles in multiple cancers via competitively binding common microRNAs. miR‐214 has been proved to play tumour suppressive roles in various cancers, including cervical cancer. In this study, we identified that lncRNA LINC01535 physically binds miR‐214, relieves the repressive roles of miR‐214 on its target EZH2, and therefore up‐regulates EZH2 protein expression. Intriguingly, we also found that EZH2 directly represses the expression of miR‐214. Thus, miR‐214 and EZH2 form double negative regulatory loop. Through up‐regulating EZH2, LINC01535 further represses miR‐214 expression. Functional experiments showed that enhanced expression of LINC01535 promotes cervical cancer cell growth, migration and invasion in vitro and cervical cancer xenograft growth in vivo. Reciprocally, LINC01535 knockdown suppresses cervical cancer cell growth, migration and invasion. Activation of the miR‐214/EZH2 regulatory loop by overexpression of miR‐214 or silencing of EZH2 reverses the roles of LINC01535 in promoting cervical canc`er cell growth, migration and invasion in vitro and cervical cancer xenograft growth in vivo. Clinically, LINC01535 is significantly up‐regulated in cervical cancer tissues and correlated with advanced clinical stage and poor prognosis. Moreover, the expression of LINC01535 is reversely associated with the expression of miR‐214 and positively associated with the expression of EZH2 in cervical cancer tissues. In conclusion, this study reveals that LINC01535 promotes cervical cancer progression via repressing the miR‐214/EZH2 regulatory loop.
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Affiliation(s)
- Hongjuan Song
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Yuan Liu
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Xin Jin
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Yang Liu
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Yanling Yang
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Lei Li
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Xuan Wang
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
| | - Guilin Li
- Department of Gynecology, Xuzhou Maternal & Child Health Care Hospital, Xuzhou, China
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