1
|
Qiu H, Jiang B, Chen Y, Lin Z, Zheng W, Cao X. Featured lncRNA-based signature for discriminating prognosis and progression of hepatocellular carcinoma. J Appl Genet 2024; 65:355-366. [PMID: 38347289 DOI: 10.1007/s13353-024-00836-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/16/2024] [Accepted: 01/20/2024] [Indexed: 02/20/2024]
Abstract
Long non-coding RNAs (lncRNAs) have been implicated in carcinogenesis and progression of hepatocellular carcinoma (HCC). This study aimed to identify a robust lncRNA signature for predicting the survival of HCC patients. We performed an integrated analysis of the lncRNA expression profiling in The Cancer Genome Atlas (TCGA)-liver hepatocellular carcinoma database to identify the prognosis-related lncRNA for the HCC. The HCC cohort was randomly divided into a training set (n = 250) and a testing set (n = 113). Following a two-step screening, we identified an 18-lncRNA signature risk score. The high-risk subgroups had significantly shorter survival time than the low-risk group in both the training set (P < 0.0001) and the testing set (P = 0.005). Stratification analysis revealed that the prognostic value of the lncRNA-based signature was independent of the tumor stage and pathologic stage. The area under the receiver operating characteristic curve (AUROC) of the 18-lncRNA signature risk score was 0.826 (95%CI, 0.764-0.888), 0.817 (95%CI, 0.759-0.876), and 0.799 (95%CI, 0.731-0.867) for 1-year, 3-year, and 5-year follow-up, respectively. Bioinformatics analyses indicated that the 18 lncRNA might mediate cell cycle, DNA replication processes, and canonical cancer-related pathways, in which MCM3AP-AS1 was a potential target for HCC. In conclusion, the 18-lncRNA signature was a robust predictive biomarker for the prognosis and progression of HCC.
Collapse
Affiliation(s)
- Huiyuan Qiu
- Medical School of Nantong University, Nantong, 226001, China
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Bo Jiang
- Department of Gastroenterology, Suqian First People's Hospital, Suqian, Jiangsu, China
| | - Yinqi Chen
- Medical School of Nantong University, Nantong, 226001, China
| | - Zhaoyi Lin
- Medical School of Nantong University, Nantong, 226001, China
| | - Wenjie Zheng
- Medical School of Nantong University, Nantong, 226001, China.
- Research Center of Clinical Medicine, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China.
| | - Xiaolei Cao
- Medical School of Nantong University, Nantong, 226001, China.
| |
Collapse
|
2
|
Sun Y, Zhang H, Ma R, Guo X, Zhang G, Liu S, Zhu W, Liu H, Gao P. ETS-1-activated LINC01016 over-expression promotes tumor progression via suppression of RFFL-mediated DHX9 ubiquitination degradation in breast cancers. Cell Death Dis 2023; 14:507. [PMID: 37550275 PMCID: PMC10406855 DOI: 10.1038/s41419-023-06016-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 06/18/2023] [Accepted: 06/29/2023] [Indexed: 08/09/2023]
Abstract
Long non-coding RNAs (lncRNAs) are key regulators during the development of breast cancer (BC) and thus may be viable treatment targets. In this study, we found that the expression of the long intergenic non-coding RNA 01016 (LINC01016) was significantly higher in BC tissue samples with positive lymph node metastasis. LINC01016, which is activated by the transcription factor ETS-1, contributes to the overt promotion of cell proliferation activity, enhanced cell migratory ability, S phase cell cycle arrest, and decreased apoptosis rate. By RNA pull-down assays and mass spectrometry analyses, we determined that LINC01016 competitively bound and stabilized DHX9 protein by preventing the E3 ubiquitin ligase RFFL from binding to DHX9, thereby inhibiting DHX9 proteasomal degradation. This ultimately led to an increase in intracellular DHX9 expression and activated PI3K/AKT signaling, with p-AKT, Bcl-2, and MMP-9 involvement. This is the first study to reveal that the LINC01016/DHX9/PI3K/AKT axis plays a critical role in the progression of BC, and thus, LINC01016 may serve as a potential therapeutic target for patients with BC.
Collapse
Affiliation(s)
- Ying Sun
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
- Department of Medical Oncology, Qilu Hospital of Shandong University (Qingdao), Qingdao, Shandong, PR China
| | - Hui Zhang
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Ranran Ma
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Xiangyu Guo
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Guohao Zhang
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Sen Liu
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China
| | - Wenjie Zhu
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China.
| | - Haiting Liu
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China.
| | - Peng Gao
- Department of Pathology, Qilu Hospital of Shandong University, Jinan, Shandong, PR China.
| |
Collapse
|
3
|
Yang L, Zhou M, Wang S, Yi X, Xiong G, Cheng J, Sai B, Zhang Q, Yang Z, Kuang Y, Zhu Y. Long Noncoding RNA SAMMSON Promotes Melanoma Progression by Inhibiting FOXA2 Expression. Stem Cells Int 2023; 2023:8934210. [PMID: 36798674 PMCID: PMC9928518 DOI: 10.1155/2023/8934210] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 10/29/2022] [Accepted: 11/24/2022] [Indexed: 02/10/2023] Open
Abstract
Long noncoding RNAs (lncRNAs) play crucial roles in melanoma initiation and development, serving as potential therapeutic targets and prognostic markers for melanoma. lncRNA survival-associated mitochondrial melanoma-specific oncogenic noncoding RNA (SAMMSON) is upregulated in many types of human cancers. However, the functions of SAMMSON in melanoma have not been fully elucidated. This study is aimed at investigating the expression and functions of SAMMSON in melanoma development. Bioinformatics analysis was performed to determine the expression of SAMMSON and its correlation with the 10-year overall survival (OS) in melanoma patients. Cell proliferation, migration, invasion, and tumorigenesis were detected by MTT, colony formation, Transwell assays, and mouse xenograft model. The expression of cell cycle-related factors, epithelial-to-mesenchymal transition (EMT) makers, and matrix metalloproteinases (MMPs) was assessed by RT-qPCR and western blotting analysis. The results demonstrated that SAMMSON expression was upregulated in melanoma tissues and cells, and lower SAMMSON expression was correlated with longer 10-year OS. SAMMSON knockdown decreased the proliferation, migration, and invasion of melanoma cells by regulating the expression of proliferation-related genes, EMT factors, and MMPs, respectively. Additionally, Forkhead box protein A2 (FOXA2) was confirmed to be a target of SAMMSON, and the biological effects induced by FOXA2 overexpression were similar to those induced by SAMMSON silencing in melanoma cells. Further studies showed that SAMMSON downregulated FOXA2 expression in melanoma cells by modulating the EZH2/H3K27me3 axis. Taken together, our data indicate that SAMMSON plays an important role in melanoma progression and can be a valuable biomarker and therapeutic target in melanoma.
Collapse
Affiliation(s)
- Lijuan Yang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
- Department of Pathology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Meiling Zhou
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
- Department of Student Affairs, Guilin University of Technology Nanning Branch, Nanning, China
| | - Shulei Wang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Xiaojia Yi
- Department of Pathology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Guohang Xiong
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Jing Cheng
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Buqing Sai
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Qiao Zhang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| | - Zhe Yang
- Department of Pathology, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yingmin Kuang
- Department of Organ Transplantation, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuechun Zhu
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Kunming Medical University, Kunming, China
| |
Collapse
|
4
|
LINC00963 promotes the malignancy and metastasis of lung adenocarcinoma by stabilizing Zeb1 and exosomes-induced M2 macrophage polarization. Mol Med 2023; 29:1. [PMID: 36604626 PMCID: PMC9817280 DOI: 10.1186/s10020-022-00598-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 12/27/2022] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Long intergenic non-coding RNA 00963 (LINC00963) is an oncogenic lncRNA in human cancers. However, little is known on how it impacts the pathogenesis of lung adenocarcinoma (LUAD). METHODS Biological effects on proliferation, migration, invasion, and epithelial-mesenchymal transition (EMT) were examined by CCK-8, colony formation, EdU incorporation, transwell, and immunofluorescence assays, respectively. Macrophage polarization was evaluated by flow cytometry. Ubiquitination of Zeb1 was examined by co-immunoprecipitation. The location of LINC00963 in LUAD tissues and cell lines was tested by FISH assay. The LINC00963/HNRNPA2B1/Siah1 mRNA complex interaction was verified using RNA pull-down and immunoprecipitation assays. The exact roles of LINC00963 were further validated in metastasis and xenograft models. RESULTS Higher LINC00963 expression in LUAD patients positively correlated with shorter overall survival, higher stages, and metastasis. LINC00963 mainly localized in the cytoplasm and aggravated malignant phenotypes of LUAD cells in vitro and metastasis in vivo. Mechanistically, LINC00963 directly interacted HNRNPA2B1 protein to trigger the degradation of Siah1 mRNA, which inhibited the ubiquitination and degradation of Zeb1. Moreover, exosomal LINC00963 derived from LUAD cells induced M2 macrophage polarization and promoted LUAD growth and metastasis. CONCLUSION By stabilizing Zeb1 in cancer cells and delivering exosomes to induce M2 macrophage polarization, LINC00963 promoted the malignancy and metastasis of LUAD. Targeting LINC00963 may become a valuable therapeutic target for LUAD.
Collapse
|
5
|
Cheng X, Huang Z, Pan A, Long D. ORLNC1 Suppresses Cell Growth in HER2-Positive Breast Cancer via miRNA-296 Sponging. Curr Mol Med 2023; 23:289-299. [PMID: 35658886 DOI: 10.2174/1566524022666220603113550] [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: 02/23/2022] [Revised: 03/08/2022] [Accepted: 03/17/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Accumulating research has demonstrated that aberrant levels of long noncoding RNAs (LncRNAs) are related to cancer progression. The effects of ORLNC1 in HER2+ breast cancer have yet to be explored. METHODS Real-time PCR was used to examine the expression of LncRNA ORLNC1 in HER+ breast cancer. CCK-8, wound healing and cell invasion assays were used to examine the effect of LncRNA ORLNC1 on HER+ breast cancer cells. Luciferase reporter assay was utilized to determine the regulatory relationship between LncRNA ORLNC1 and miR-296. Western blotting was used to measure the expression of PTEN. Xenograft mouse model was used to examine the effect of LncRNA ORLNC1 on tumor progression in vivo. RESULTS In this study, our findings revealed downregulation of ORLNC1 in HER2+ breast cancer specimens and cell lines. Low levels of ORLNC1 were related to poor prognosis and advanced cancer stage. Using gain- and loss-of-function assays, the ability of these tumor cells to proliferate was found to be inhibited by ORLNC1 in vitro and in vivo. Further analyses revealed that miR-296/PTEN axis is directly targeted by ORLNC1. Consequently, over-expression of miR-296 efficiently abrogated the upregulation of PTEN induced by ORLNC1, suggesting that ORLNC1 positively regulates PTEN expression by competitively binding to miR-296. CONCLUSION Our results indicate that lncRNA ORLNC1 acts as a tumor suppressor by regulating the miR-296/PTEN axis in HER2+ breast cancer.
Collapse
Affiliation(s)
- Xueyuan Cheng
- Department of General Surgery, Beihai People's Hospital, Beihai, Guangxi, 536000, China
| | - Zhong Huang
- Department of General Surgery, Beihai People's Hospital, Beihai, Guangxi, 536000, China
| | - Anchao Pan
- Department of Gastrointestinal Surgery, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530199, China
| | - Di Long
- Department of Gastrointestinal Surgery, Wuming Hospital of Guangxi Medical University, Nanning, Guangxi, 530199, China
| |
Collapse
|
6
|
Ray SK, Mukherjee S. Interaction Among Noncoding RNAs, DNA Damage Reactions, and Genomic Instability in the Hypoxic Tumor: Is it Therapeutically Exploitable Practice? Curr Mol Med 2023; 23:200-215. [PMID: 35048804 DOI: 10.2174/1566524022666220120123557] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 11/30/2021] [Accepted: 12/07/2021] [Indexed: 02/08/2023]
Abstract
Hypoxia is a classical function of the tumor's microenvironment with a substantial effect on the development and therapeutic response of cancer. When put in hypoxic environments, cells undergo several biological reactions, including activation of signaling pathways that control proliferation, angiogenesis, and death. These pathways have been adapted by cancer cells to allow tumors to survive and even develop in hypoxic conditions, and poor prognosis is associated with tumor hypoxia. The most relevant transcriptional regulator in response to hypoxia, Hypoxia-inducible factor-1 alpha (HIF-1α), has been shown to modulate hypoxic gene expression and signaling transduction networks significantly. The significance of non-coding RNAs in hypoxic tumor regions has been revealed in an increasing number of studies over the past few decades. In regulating hypoxic gene expression, these hypoxia-responsive ncRNAs play pivotal roles. Hypoxia, a general characteristic of the tumor's microenvironment, significantly affects the expression of genes and is closely associated with the development of cancer. Indeed, the number of known hypoxia-associated lncRNAs has increased dramatically, demonstrating the growing role of lncRNAs in cascades and responses to hypoxia signaling. Decades of research have helped us create an image of the shift in hypoxic cancer cells' DNA repair capabilities. Emerging evidence suggests that hypoxia can trigger genetic instability in cancer cells because of microenvironmental tumor stress. Researchers have found that critical genes' expression is coordinately repressed by hypoxia within the DNA damage and repair pathways. In this study, we include an update of current knowledge on the presentation, participation, and potential clinical effect of ncRNAs in tumor hypoxia, DNA damage reactions, and genomic instability, with a specific emphasis on their unusual cascade of molecular regulation and malignant progression induced by hypoxia.
Collapse
Affiliation(s)
| | - Sukhes Mukherjee
- Department of Biochemistry All India Institute of Medical Sciences. Bhopal, Madhya Pradesh-462020. India
| |
Collapse
|
7
|
The lncRNA NEAT1 Inhibits miRNA-216b and Promotes Colorectal Cancer Progression by Indirectly Activating YY1. JOURNAL OF ONCOLOGY 2022; 2022:8130132. [PMID: 36262350 PMCID: PMC9576420 DOI: 10.1155/2022/8130132] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/10/2022] [Accepted: 07/19/2022] [Indexed: 12/02/2022]
Abstract
Background Nuclear Paraspeckle Assembly Transcript 1 (NEAT1) is commonly considered an oncogene in various cancers. The long noncoding RNA NEAT1 has been reported to be overexpressed in colorectal cancer (CRC). However, the exact role of NEAT1 in CRC remains unknown. Our research aimed to explore the function of NEAT1 in the tumorigenesis and the development of CRC. Methods Real-time quantitative PCR (qRT-PCR) was used to detect the NEAT1, miR-216b, and YIN-YANG-1 (YY1) mRNA levels in CRC tissues and cells, then immunohistochemistry (IHC) was used to detect the expression of YY1 in CRC tissues. Luciferase reporter, qPCR, western blot, and DNA pulldown assays were conducted to study the relationships between NEAT1, miR-216b, and YY1. Flow cytometry analysis was performed for cell cycle and apoptosis analyses, and a colony formation assay was performed to test cell proliferation. Transwell assays were performed to detect cell invasion and migration. Results The NEAT1 expression was significantly upregulated in CRC tissues compared with its expression in normal tissues, and downregulation of NEAT1 suppressed the proliferation, migration, and invasion of CRC cells. Moreover, we found NEAT1 decreased the miR-216b level directly, and the suppression of miR-216b could inhibit the function of downstream YY1. However, overexpression of YY1 accelerated CRC cell proliferation, migration, and invasion. Conclusion Our results indicated that NEAT1 acted as an oncogene in CRC and promoted the progression of CRC by directly sponging miR-216 b expression to activate the expression of YY1. The NEAT1/miR-216b/YY1 axis may be a novel therapeutic target for CRC.
Collapse
|
8
|
LncRNA MNX1-AS1: A novel oncogenic propellant in cancers. Biomed Pharmacother 2022; 149:112801. [PMID: 35290890 DOI: 10.1016/j.biopha.2022.112801] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/03/2022] [Accepted: 03/07/2022] [Indexed: 11/23/2022] Open
Abstract
To date, recent studies have shown that long non-coding RNAs (lncRNAs) are key players in gene regulation processes involved in cancer pathogenesis. In general, Motor neuron and pancreas homeobox 1-antisense RNA1 (MNX1-AS1) is highly expressed in all cancers as reported so far and exerts oncogenic effects through different mechanisms. In this review, we comprehensively summarize the detailed mechanisms of potential functions of MNX1-AS1 in different cancer types as well as the latest knowledge highlighting the potential of MNX1-AS1 as a therapeutic target for cancer. Aberrant expression of MNX1-AS1 closely correlates with clinicopathological parameters. such as lymphatic metastasis, tumor size, tumor stage, OS and DFS. Thus, MNX1-AS1 can be used as a diagnostic and prognostic biomarker or even a therapeutic prognostic target. This article reviews its function, molecular mechanism and clinical prognosis in various malignancies.
Collapse
|
9
|
England WE, Wang J, Chen S, Baldi P, Flynn RA, Spitale RC. An atlas of posttranslational modifications on RNA binding proteins. Nucleic Acids Res 2022; 50:4329-4339. [PMID: 35438783 PMCID: PMC9071496 DOI: 10.1093/nar/gkac243] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 03/24/2022] [Accepted: 04/15/2022] [Indexed: 12/13/2022] Open
Abstract
RNA structure and function are intimately tied to RNA binding protein recognition and regulation. Posttranslational modifications are chemical modifications which can control protein biology. The role of PTMs in the regulation RBPs is not well understood, in part due to a lacking analysis of PTM deposition on RBPs. Herein, we present an analysis of posttranslational modifications (PTMs) on RNA binding proteins (RBPs; a PTM RBP Atlas). We curate published datasets and primary literature to understand the landscape of PTMs and use protein-protein interaction data to understand and potentially provide a framework for understanding which enzymes are controlling PTM deposition and removal on the RBP landscape. Intersection of our data with The Cancer Genome Atlas also provides researchers understanding of mutations that would alter PTM deposition. Additional characterization of the RNA-protein interface provided from in-cell UV crosslinking experiments provides a framework for hypotheses about which PTMs could be regulating RNA binding and thus RBP function. Finally, we provide an online database for our data that is easy to use for the community. It is our hope our efforts will provide researchers will an invaluable tool to test the function of PTMs controlling RBP function and thus RNA biology.
Collapse
Affiliation(s)
- Whitney E England
- Department of Pharmaceutical Sciences, University of California, Irvine. Irvine, CA, USA
| | - Jingtian Wang
- Department of Pharmaceutical Sciences, University of California, Irvine. Irvine, CA, USA
| | - Siwei Chen
- School of Information and Computer Sciences, University of California, Irvine. Irvine, CA, USA
| | - Pierre Baldi
- School of Information and Computer Sciences, University of California, Irvine. Irvine, CA, USA
| | - Ryan A Flynn
- Stem Cell Program, Boston Children's Hospital, Boston, MA, USA.,Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA, USA
| | - Robert C Spitale
- Department of Pharmaceutical Sciences, University of California, Irvine. Irvine, CA, USA.,Department of Developmental and Cellular Biology, University of California, Irvine. Irvine, CA, USA.,Department of Chemistry, University of California, Irvine. Irvine, CA, USA
| |
Collapse
|
10
|
Linc00261 Inhibited High-Grade Serous Ovarian Cancer Progression through miR-552-ATG10-EMT Axis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:9450353. [PMID: 35465017 PMCID: PMC9019445 DOI: 10.1155/2022/9450353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/16/2022] [Accepted: 03/21/2022] [Indexed: 12/05/2022]
Abstract
In recent years, long non-coding RNAs (lncRNAs) play an important role in a multitude of pathways across species; however, their functions are still unknown. In this study, we demonstrate that Linc00261 is downregulation in high-grade serous ovarian cancer (HGSOC) and can inhibit cell proliferation and migration of high-grade serous ovarian cancer cells. We further validate the targeting interactions among Linc00261, miR-552, and ATG10. Interestingly, they all play important roles for regulating epithelial-mesenchymal transition (EMT) progression. Collectively, these findings suggest that Linc00261, a mediator of EMT progression, can target oncogenic miR-552, elevating ATG10 expression, to prevent high-grade serous ovarian cancer tumorigenesis and may serve as a potential novel therapeutic target.
Collapse
|
11
|
Tang W, Lu G, Ji Y, Xu Y. Long non‑coding RNA PCAT1 sponges miR‑134‑3p to regulate PITX2 expression in breast cancer. Mol Med Rep 2022; 25:75. [PMID: 35014684 DOI: 10.3892/mmr.2022.12591] [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: 11/19/2020] [Accepted: 09/03/2021] [Indexed: 12/09/2022] Open
Abstract
Breast cancer (BC) is the most prevalent cancer among women. Long non‑coding (lnc)RNAs and microRNAs (miRs) both regulate the expression of key genes in tumorigenesis. The present study aimed to explore the molecular mechanism of the prostate cancer‑associated transcript 1 (PCAT1)/miR‑134‑3p/pituitary homeobox 2 (PITX2) in BC. Reverse transcription‑quantitative PCR was performed to examine the expression of miR‑134‑3p. Cell proliferation, viability, cell cycle, apoptosis and migration were analyzed using Cell Counting Kit‑8, colony formation, flow cytometry, wound healing and Transwell assays. Protein expression levels were determined by western blotting. The present study demonstrated that PCAT1 was significantly highly expressed in BC cells. Knockdown of PCAT1 significantly inhibited cell proliferation, migration and invasion, but promoted apoptosis in human BC cell lines. The results of the dual‑luciferase assay showed that PCAT1 targeted miR‑134‑3p, and PITX2 was a potential target of miR‑134‑3p. Western blotting results demonstrated that PCAT1 knockdown significantly reduced the protein expression levels of anti‑apoptotic protein Bcl‑2, and significantly upregulated the protein expression levels of proapoptotic proteins, Bax, cleaved caspase‑3 and cleaved caspase‑9. Furthermore, the effect of a miR‑134‑3p inhibitor on BC progression was rescued by the knockdown of PITX2 in cells transfected with short hairpin RNA‑lncRNA PCAT1. To conclude, the results of the present study indicated that the PCAT1/miR‑134‑3p/PITX2 axis could be a promising therapeutic target in BC treatment.
Collapse
Affiliation(s)
- Weiming Tang
- Department of Clinical Laboratory, Liyang People's Hospital, Liyang, Jiangsu 213300, P.R. China
| | - Guang Lu
- Department of General Surgery, Liyang People's Hospital, Liyang, Jiangsu 213300, P.R. China
| | - Yin Ji
- Department of Pathology, Liyang People's Hospital, Liyang, Jiangsu 213300, P.R. China
| | - Yan Xu
- Department of Clinical Laboratory, Liyang People's Hospital, Liyang, Jiangsu 213300, P.R. China
| |
Collapse
|
12
|
Ghahramani Almanghadim H, Ghorbian S, Khademi NS, Soleymani Sadrabadi M, Jarrahi E, Nourollahzadeh Z, Dastani M, Shirvaliloo M, Sheervalilou R, Sargazi S. New Insights into the Importance of Long Non-Coding RNAs in Lung Cancer: Future Clinical Approaches. DNA Cell Biol 2021; 40:1476-1494. [PMID: 34931869 DOI: 10.1089/dna.2021.0563] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
In mammals, a large part of the gene expression products come from the non-coding ribonucleotide sequences of the protein. These short and long sequences are within the range of tens to hundreds of nucleotides, encompassing more than 200 RNA molecules, and their function is known as the molecular structure of long non-coding RNA (lncRNA). LncRNA molecules are unique nucleotides that have a substantial role in epigenetic regulation, transcription, and post-transcriptional modifications in different ways. According to the results of recent studies, lncRNAs have been shown to assume various roles, including tumor suppression or oncogenic functions in common types of cancer such as lung and breast cancer. These non-coding RNAs (ncRNAs) play a pivotal role in activating transcription factors, managing the ribonucleoproteins, the framework for collecting co-proteins, intermittent processing regulations, chromatin status alterations, and maintaining the control within the cell. Cutting-edge technologies have been introduced to disclose several types of lncRNAs within the nucleus and the cytoplasm, which have accomplished important achievements that are applicable in medicine. Due to these efforts, various data centers have been created to facilitate and modify scientific information related to these molecules, including detection, classification, biological evolution, gene status, spatial structure, status, and location of these small molecules. In the present study, we attempt to present the impacts of these ncRNAs on lung cancer with an emphasis on their mechanisms and functions.
Collapse
Affiliation(s)
| | - Saeed Ghorbian
- Department of Molecular Genetics, Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Nazanin Sadat Khademi
- Department of Genetics, Faculty of Biological Science, Shahid Beheshti University, Tehran, Iran
| | | | - Esmaeil Jarrahi
- Department of Stem Cells and Developmental Biology, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Zahra Nourollahzadeh
- Department of Biological Science, Ahar Branch, Islamic Azad University, Ahar, Iran
| | - Masomeh Dastani
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Milad Shirvaliloo
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Saman Sargazi
- Cellular and Molecular Research Center, Research Institute of Cellular and Molecular Sciences in Infectious Diseases, Zahedan University of Medical Sciences, Zahedan, Iran
| |
Collapse
|
13
|
LncRNA RP11-465B22.8 triggers esophageal cancer progression by targeting miR-765/KLK4 axis. Cell Death Discov 2021; 7:262. [PMID: 34561425 PMCID: PMC8463694 DOI: 10.1038/s41420-021-00631-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 08/16/2021] [Accepted: 09/02/2021] [Indexed: 01/22/2023] Open
Abstract
LncRNAs play an important role in tumorigenesis and progression; however, the function and mechanisms of lncRNAs in esophageal cancer (EC) remain largely unclear. In this study, we screened the differentially expressed lncRNAs in EC by using RNA-seq and one of the most upregulated lncRNAs, lncRNA RP11-465B22.8, was further characterized. LncRNA RP11-465B22.8 was upregulated in EC tissues and high lncRNA RP11-465B22.8 expression was associated with poor survival of EC patients. Ectopic expression of lncRNA RP11-465B22.8 enhanced the proliferation, migration, and invasion of EC cells, whereas knockdown of lncRNA RP11-465B22.8 led to the opposite effects. Mechanistically, lncRNA RP11-465B22.8 sponged miR-765 to increase the expression of KLK4. Moreover, LncRNA RP11-465B22.8 could be delivered from EC cells to macrophages via exosomes and subsequently induced M2 macrophage-induced cell migration and invasion. Our findings revealed a novel lncRNA RP11-465B22.8/miR-765/KLK4 pathway in EC and indicated that lncRNA RP11-465B22.8 might be a potential target for EC therapy.
Collapse
|
14
|
Foruzandeh Z, Zeinali-Sehrig F, Nejati K, Rahmanpour D, Pashazadeh F, Seif F, Alivand MR. CircRNAs as potent biomarkers in ovarian cancer: a systematic scoping review. Cell Mol Biol Lett 2021; 26:41. [PMID: 34556024 PMCID: PMC8461915 DOI: 10.1186/s11658-021-00284-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/10/2021] [Indexed: 12/30/2022] Open
Abstract
More powerful prognostic and diagnostic tools are urgently needed for identifying and treating ovarian cancer (OC), which is the most fatal malignancy in women in developed countries. Circular RNAs (circRNAs) are conservative and stable looped molecules that can regulate gene expression by competing with other endogenous microRNA sponges. This discovery provided new insight into novel methods for regulating genes that are involved in many disorders and cancers. This review focuses on the dysregulated expression of circRNAs as well as their diagnostic and prognostic values in OC. We found that studies have identified twenty-one downregulated circRNAs and fifty-seven upregulated ones. The results of these studies confirm that circRNAs might be potent biomarkers with diagnostic, prognostic and therapeutic target value for OC. We also consider the connection between circRNAs and OC cell proliferation, apoptosis, metastasis, and chemotherapy resistance and sensitivity.
Collapse
Affiliation(s)
- Zahra Foruzandeh
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Zeinali-Sehrig
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kazem Nejati
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Science, Ardabil, Iran
| | - Dara Rahmanpour
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fariba Pashazadeh
- Research Center for Evidence-Based Medicine, Tabriz University of Medical Science, Tabriz, Iran
| | - Farhad Seif
- Department of Immunology and Allergy, Academic Center for Education, Culture, and Research, Tehran, Iran
| | - Mohammad Reza Alivand
- Department of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Research Center for Evidence-Based Medicine, Tabriz University of Medical Science, Tabriz, Iran
| |
Collapse
|
15
|
Xian J, Zeng Y, Chen S, Lu L, Liu L, Chen J, Rao B, Zhao Z, Liu J, Xie C, Zhu L, Zhang D, Qiu F, Lu J, Yang L. Discovery of a novel linc01125 isoform in serum exosomes as a promising biomarker for NSCLC diagnosis and survival assessment. Carcinogenesis 2021; 42:831-841. [PMID: 33928340 DOI: 10.1093/carcin/bgab034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 04/09/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023] Open
Abstract
A non-invasive method to distinguish potential lung cancer patients would improve lung cancer prevention. We employed the RNA-sequencing analysis to profile serum exosomal long non-coding RNAs (lncRNAs) from non-small cell lung cancer (NSCLC) patients and pneumonia controls, and then determined the diagnostic and prognostic value of a promising lncRNA in four datasets. We identified 90 dysregulated lncRNAs for NSCLC and found the most significant lncRNA was a novel isoform of linc01125. Serum exosomal linc01125 could distinguish NSCLC cases from disease-free and tuberculosis controls, with the area under the curve values as 0.662 [95% confidence interval (CI) = 0.614-0.711] and 0.624 (95% CI = 0.522-0.725), respectively. High expression of exosomal linc01125 was also correlated with an unfavorable overall survival of NSCLC (hazard ratio = 1.48, 95% CI = 1.05-2.08). Clinic treatment decreased serum exosomal linc01125 in NSCLC patients (P = 0.036). Linc01125 functions to inhibit cancer growth and metastasis via acting as a competing endogenous RNA to up-regulate tumor necrosis factor alpha-induced protein 3 (TNFAIP3) expression by sponging miR-19b-3p. Notably, the oncogenic transformation of 16HBE led to decreased linc01125 in cells but increased linc01125 in cell-derived exosomes. The expression of linc01125 in total exosomes was highly correlated with that in tumor-associated exosomes in serum. Moreover, lung cancer cells were capable of releasing linc01125 into exosomes in vitro and in vivo. Our analyses suggest serum exosomal linc01125 as a promising biomarker for non-invasively diagnosing NSCLC and predicting the prognosis of NSCLC.
Collapse
Affiliation(s)
- Jianfeng Xian
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Yuyuan Zeng
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Shizhen Chen
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Liming Lu
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Li Liu
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Jinbin Chen
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Boqi Rao
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Zhuxiang Zhao
- Department of Pulmonary and Critical Care Medicine, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guanzhou, China
| | - Jun Liu
- Department of Pulmonary and Critical Care Medicine, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guanzhou, China
| | - Chenli Xie
- Fifth People's Hospital of Dongguan, Dongguan, China
| | - Lingling Zhu
- Department of Pulmonary and Critical Care Medicine, Guangzhou First People's Hospital, The Second Affiliated Hospital of South China University of Technology, Guanzhou, China
| | - Duo Zhang
- Clinical and Experimental Therapeutics, College of Pharmacy, University of Georgia and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Fuman Qiu
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| | - Jiachun Lu
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China.,The State Key Lab of Respiratory Disease, Guangzhou Institute of Respiratory Diseases, The First Affiliated Hospital of Guangzhou Medical University, Yuexiu District, Guangzhou, China
| | - Lei Yang
- The State Key Lab of Respiratory Disease, Institute of Public Health, Guangzhou Medical University, Xinzao, Panyu District, Guangzhou, China
| |
Collapse
|
16
|
Han Y, Wang X, Mao E, Shen B, Huang L. lncRNA FLVCR1‑AS1 drives colorectal cancer progression via modulation of the miR‑381/RAP2A axis. Mol Med Rep 2020; 23:139. [PMID: 33313944 PMCID: PMC7751490 DOI: 10.3892/mmr.2020.11778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 09/15/2020] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most prevalent types of cancer globally. Long non-coding RNAs (lncRNAs) have been suggested to serve as vital regulators in CRC. lncRNA feline leukemia virus subgroup C receptor 1 antisense RNA 1 (FLVCR1-AS1) is closely associated with the tumorigenesis of various types of cancer. The aim of the present study was to investigate the molecular mechanisms of lncRNA FLVCR1-AS1 in CRC progression. The expression levels of FLVCR1-AS1, microRNA (miR)-381 and Ras-related protein 2a (RAP2A) were measured by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). A Kaplan-Meier analysis was performed to determine the overall survival rate of patients with CRC. Furthermore, cell viability, migration and invasion were assessed using Cell Counting Kit-8 (CCK-8) and Transwell assays. The interaction between genes was confirmed using dual-luciferase reporter and pull-down assays. The results demonstrated that FLVCR1-AS1 was upregulated in CRC tissues and cells, and increased FLVCR1-AS1 expression levels in patients with CRC were associated with poor prognosis. FLVCR1-AS1 knockdown significantly attenuated the viability, migration and invasion ability of CRC cells. In addition, the results confirmed that FLVCR1-AS1 directly binds with miR-381-3p, and that RAP2A is a direct target of miR-381-3p. The overexpression of FLVCR1-AS1 increased RAP2A expression levels. Functional assays revealed that miR-381 inhibitor or RAP2A overexpression attenuated the suppressive effects of FLVCR1-AS1 silencing on CRC cell viability, migration and invasion. Overall, the findings of the current study suggest that FLVCR1-AS1 promotes CRC progression via the miR-381/RAP2A pathway. These findings may provide a novel approach for CRC treatment.
Collapse
Affiliation(s)
- Yi Han
- Department of Traumatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, P.R. China
| | - Xiaoyan Wang
- Department of Traumatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, P.R. China
| | - Enqiang Mao
- Department of Emergency, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, P.R. China
| | - Boyong Shen
- Department of General Surgery, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, P.R. China
| | - Liang Huang
- Department of Traumatology, Ruijin Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200025, P.R. China
| |
Collapse
|
17
|
Chen W, Yang J, Fang H, Li L, Sun J. Relevance Function of Linc-ROR in the Pathogenesis of Cancer. Front Cell Dev Biol 2020; 8:696. [PMID: 32850817 PMCID: PMC7432147 DOI: 10.3389/fcell.2020.00696] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/09/2020] [Indexed: 12/24/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) are the key components of non-coding RNAs (ncRNAs) with a length of 200 nucleotides. They are transcribed from the so-called “dark matter” of the genome. Increasing evidence have shown that lncRNAs play an important role in the pathophysiology of human diseases, particularly in the development and progression of tumors. Linc-ROR, as a new intergenic non-protein coding RNA, has been considered to be a pivotal regulatory factor that affects the occurrence and development of human tumors, including breast cancer (BC), colorectal cancer (CRC), pancreatic cancer (PC), hepatocellular carcinoma (HCC), and so on. Dysregulation of Linc-ROR has been closely related to advanced clinicopathological factors predicting a poor prognosis. Because linc-ROR can regulate cell proliferation, apoptosis, migration, and invasion, it can thus be used as a potential biomarker for patients with tumors and has potential clinical significance as a therapeutic target. This article reviewed the role of linc-ROR in the development of tumors, its related molecular mechanisms, and clinical values.
Collapse
Affiliation(s)
- Wenjian Chen
- Anhui Provincial Children's Hospital, Affiliated to Anhui Medical University, Hefei, China
| | - Junfa Yang
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Institute of Clinical Pharmacology, Anhui Medical University, Hefei, China.,School of Pharmacy, Anhui Medical University, Hefei, China
| | - Hui Fang
- Department of Pharmacology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Lei Li
- The Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun Sun
- Anhui Provincial Children's Hospital, Affiliated to Anhui Medical University, Hefei, China
| |
Collapse
|
18
|
Zhou F, Wang J, Chi X, Zhou X, Wang Z. lncRNA TM4SF1-AS1 Activates the PI3K/AKT Signaling Pathway and Promotes the Migration and Invasion of Lung Cancer Cells. Cancer Manag Res 2020; 12:5527-5536. [PMID: 32765064 PMCID: PMC7369303 DOI: 10.2147/cmar.s254072] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/25/2020] [Indexed: 12/11/2022] Open
Abstract
Purpose Metastasis is a crucial cause of the high mortality in patients with lung cancer. Long non-coding RNAs (lncRNAs) are emerging as important players in the development and progression of human cancers. Here, we aimed to identify metastasis-associated lncRNA and to study its roles in the migration and invasion of lung cancer cells. Materials and Methods We screened differentially expressed lncRNAs between high- and low-metastatic lung cancer cell lines by using microarray and identified the target lncRNA TM4SF1-AS1. The effect of the TM4SF1-AS1 on the invasion and migration was evaluated through the wound healing experiment and transwell assay. The expression of related genes was assessed by RNA sequence and Western blotting. Results TM4SF1-AS1 was highly expressed in high metastatic lung cancer cell line, and it was also significantly up-regulated in lymph node metastatic lung cancer and was associated with lymph node metastasis. Overexpression of TM4SF1-AS1 promoted the migration and invasion of lung cancer cells. Overexpression of TM4SF1-AS1 decreased the expression of E-Cadherin and increased the expression of Vimentin, Snail and Twist, while knockdown of TM4SF1-AS1 exhibited the opposite trend. Furthermore, RNA sequence analysis revealed that some signaling pathways, including PI3K/AKT signaling pathway, were enriched upon TM4SF1-AS1 overexpression. Western blotting further confirmed that the PI3K/AKT signaling pathway was activated by TM4SF1-AS1. Conclusion This study illustrates that TM4SF1-AS1 promotes the migration and invasion of lung cancer cells by activating the PI3K/AKT signaling pathway. TM4SF1-AS1 might be a novel target of molecular treatment for lung cancer.
Collapse
Affiliation(s)
- Fachen Zhou
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated with Shandong University, Jinan, Shandong, People's Republic of China.,Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Jin Wang
- Department of Thoracic Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Xinming Chi
- Department of Histology and Embryology, Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Xin Zhou
- Department of Histology and Embryology, Dalian Medical University, Dalian, Liaoning, People's Republic of China
| | - Zhou Wang
- Department of Thoracic Surgery, Shandong Provincial Hospital Affiliated with Shandong University, Jinan, Shandong, People's Republic of China
| |
Collapse
|
19
|
Yang X, Mei J, Wang H, Gu D, Ding J, Liu C. The emerging roles of circular RNAs in ovarian cancer. Cancer Cell Int 2020; 20:265. [PMID: 32587475 PMCID: PMC7313187 DOI: 10.1186/s12935-020-01367-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Accepted: 06/18/2020] [Indexed: 12/12/2022] Open
Abstract
Circular RNA (circRNA) is a novel class of regulatory noncoding RNA (ncRNA) molecules with a unique covalently closed loop structure. Next-generation sequencing shows that thousands of circRNAs are widely and stably expressed in multiple eukaryotes. As novel regulatory ncRNAs, circRNAs possess several specific molecular functions, including regulating gene transcription and translation, acting as miRNA sponges, and interacting with functional proteins. Ovarian cancer (OvCa) is one of the most aggressive malignant diseases affecting the lives of thousands of women worldwide, and the majority of OvCa cases are diagnosed at advanced stages. Accumulating evidence has revealed the significant roles of circRNAs in the occurrence and progression of OvCa, indicating the function of circRNAs as promising biomarkers and their therapeutic relevance in this disease. This review aims to summarize the mechanisms by which circRNAs mediate OvCa progression as well as their diagnostic and prognostic values in OvCa.
Collapse
Affiliation(s)
- Xuejing Yang
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, No. 299 Qingyang Road, Wuxi, 214023 China
| | - Jie Mei
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, No. 299 Qingyang Road, Wuxi, 214023 China
| | - Huiyu Wang
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, No. 299 Qingyang Road, Wuxi, 214023 China
| | - Dingyi Gu
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, No. 299 Qingyang Road, Wuxi, 214023 China
| | - Junli Ding
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, No. 299 Qingyang Road, Wuxi, 214023 China
| | - Chaoying Liu
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, No. 299 Qingyang Road, Wuxi, 214023 China
| |
Collapse
|
20
|
Sun F, Wu K, Yao Z, Mu X, Zheng Z, Sun M, Wang Y, Liu Z, Zhu Y. Long noncoding RNA LINC00963 induces NOP2 expression by sponging tumor suppressor miR-542-3p to promote metastasis in prostate cancer. Aging (Albany NY) 2020; 12:11500-11516. [PMID: 32554858 PMCID: PMC7343457 DOI: 10.18632/aging.103236] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 03/30/2020] [Indexed: 12/13/2022]
Abstract
Metastatic disease caused by castration-resistant prostate cancer (CRPC) is the principal cause of prostate cancer (PCa)-related mortality. CRPC occurs within 2-3 years of initiation of androgen deprivation therapy (ADT), which is an important factor of influencing PCa metastasis. Recent studies have revealed that non-coding RNAs in PCa can enhance metastasis and progression, while the mechanisms are still unclear. In this study, we reported that the long noncoding RNA-LINC00963 was increased in CRPC tissues and promoted migration of PCa cells in vitro and their metastasis in vivo. High levels of LINC00963 significantly decreased tumor suppressor miR-542-3p, whose levels in metastasis tissues were low compared to those in non-metastasis tissues. LINC00963 promotes and miR-542-3p inhibits metastasis. Furthermore, the expression levels of LINC00963 and miR-542-3p were positively and negatively associated with the expression of NOP2. We demonstrated that NOP2 promoted PCa by activating the epithelial-mesenchymal transition (EMT) pathway. For specific mechanism, dual luciferase reporter assays showed that miR-542-3p directly binds to both 3'-untranslated region (UTR) of LINC00963 and NOP2 mRNA. Taken together, our results show that LINC00963 acts as an inducer of PCa metastasis by binding miR-542-3p, thereby promoting NOP2. This axis may have diagnostic and therapeutic potential for advanced PCa.
Collapse
Affiliation(s)
- Feng Sun
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Ke Wu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Zhixian Yao
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Xingyu Mu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Zhong Zheng
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Menghao Sun
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yong Wang
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Zhihong Liu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| | - Yiyong Zhu
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200080, China
| |
Collapse
|
21
|
Luan W, Ding Y, Yuan H, Ma S, Ruan H, Wang J, Lu F, Bu X. Long non-coding RNA LINC00520 promotes the proliferation and metastasis of malignant melanoma by inducing the miR-125b-5p/EIF5A2 axis. J Exp Clin Cancer Res 2020; 39:96. [PMID: 32466797 PMCID: PMC7254730 DOI: 10.1186/s13046-020-01599-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/19/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Long intergenic non-protein coding RNA 520 (LINC00520), a novel identified lncRNA, has been shown to modulate the malignant phenotype of tumor cells in some malignant tumors. However, the exact role and molecular mechanism of LINC00520 in malignant melanoma has not been studied. METHODS The expression of LINC00520 in melanoma tissues were detected by using RNA-seq analysis and qRT-PCR. Melanoma cases from the public databases (The Cancer Genome Atlas (TCGA), GEO#GSE15605, GEO#GSE34460 and GEO#GSE24996) were included in this study. CCK-8 assay, EdU assay, transwell and scratch wound assay were used to explore the role of LINC00520 in melanoma cells. Luciferase reporter assays, MS2-RIP, RNA pull-down and RNA-ChIP assay were used to demonstrate the molecular biological mechanism of LINC00520 in melanoma. RESULTS We found that LICN00520 was found to be overexpressed in melanoma tissue. High expression of LICN00520 is a risk factor for the prognosis of melanoma patients. LINC00520 promotes the proliferation, invasion and migration of melanoma cells. LICN00520 exerted its oncogenic role by competitive binding miR-125b-5p to promote Eukaryotic initiation factor 5A2 (EIF5A2) expression. We also showed that LICN00520 promotes the growth and metastasis of melanoma in vivo through regulating miR-125b-5p/EIF5A2 axis. CONCLUSIONS All results elucidated the role and molecular mechanism of LINC00520 in the malignant development of melanoma. LINC00520, a new oncogene in melanoma, maybe serve as a survival biomarkers or therapeutic target for melanoma patients.
Collapse
Affiliation(s)
- Wenkang Luan
- Department of Plastic Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China.
| | - Yuting Ding
- Department of Rehabilitation, Changshu No. 2 People's Hospital (The 5th Clinical Medical College of Yangzhou University), Changshu, Jiangsu, China
| | - Haitao Yuan
- Department of General Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China
| | - Shaojun Ma
- Department of Plastic Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China
| | - Hongru Ruan
- Department of Plastic Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China
| | - Jinlong Wang
- Department of Plastic Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China
| | - Feng Lu
- Department of Plastic Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China
| | - Xuefeng Bu
- Department of General Surgery, Affiliated People's Hospital of Jiangsu University, 8 Dianli Road, Zhenjiang, 212000, Jiangsu, China.
| |
Collapse
|
22
|
Guo G, Dai S, Chen Q. Long Noncoding RNA LINC00261 Reduces Proliferation and Migration of Breast Cancer Cells via the NME1-EMT Pathway. Cancer Manag Res 2020; 12:3081-3089. [PMID: 32440206 PMCID: PMC7210026 DOI: 10.2147/cmar.s237197] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 03/02/2020] [Indexed: 12/20/2022] Open
Abstract
Objective Long noncoding RNAs (lncRNAs) are emerging as a class of important biological regulators. lncRNAs participate in diverse biological functions and disease processes, especially those leading to tumorigenesis. In this study, we investigate the role of linc00261 in the pathogenesis of breast cancer. Methods linc00261 and NME1 expression levels were determined in breast cancer tissue and adjacent normal tissue using qRT-PCR. Cell proliferation and migration were analyzed using MTT and transwell assays, respectively. Epithelial–mesenchymal transition markers were examined via Western blotting assay. RNA pull-down was used to examine the interaction between linc00261 and the NME1 mRNA transcript. Results linc00261 is expressed in lower levels on breast cancer tissues than in para-carcinoma tissues. Reintroduction of linc00261 can inhibit the migration of breast cancer cells and arrest their proliferation. Additionally, linc00261 knockdown is sufficient to cause breast carcinoma tumorigenesis. We also found that linc00261 interacts with NME1 mRNA, protecting it from degradation. This protection leads to increased cellular levels of NME1, which functions as suppressor of tumor metastasis. Conclusion Taken together, these data demonstrate detailed mechanistic links between the linc00261/NME1 axis and tumorigenesis and show that linc00261 might serve as a novel therapeutic target.
Collapse
Affiliation(s)
- Guangxiu Guo
- Department of Pathology, The People's Hospital of Ganzhou, Gannan, People's Republic of China
| | - Sujuan Dai
- Department of Pathology, The People's Hospital of Ganzhou, Gannan, People's Republic of China
| | - Qing Chen
- Department of Pathology, The People's Hospital of Ganzhou, Gannan, People's Republic of China
| |
Collapse
|
23
|
Zheng X, Zhang J, Fang T, Wang X, Wang S, Ma Z, Xu Y, Han C, Sun M, Xu L, Wang J, Yin R. The long non-coding RNA PIK3CD-AS2 promotes lung adenocarcinoma progression via YBX1-mediated suppression of p53 pathway. Oncogenesis 2020; 9:34. [PMID: 32165621 PMCID: PMC7067885 DOI: 10.1038/s41389-020-0217-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/27/2020] [Accepted: 02/27/2020] [Indexed: 01/07/2023] Open
Abstract
The underlying mechanisms of long non-coding RNAs (lncRNA) participating in the progression of lung cancers are largely unknown. We found a novel lncRNA, PIK3CD antisense RNA 2 (PIK3CD-AS2), that contributes to lung adenocarcinoma (LUAD) progression. The expression characteristics of PIK3CD-AS2 in LUAD were analyzed using microarray expression profile, The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets, and validated in 92 paired LUAD tissues by chromogenic in situ hybridization. Our data confirmed that PIK3CD-AS2 expression is a crucial regulator of LUAD progression and associated with shorter patient survival. In vitro studies showed that PIK3CD-AS2 increased cell growth and slowed apoptosis in p53wt cells but not in p53null cells. Mechanically, it is demonstrated that PIK3CD-AS2 bound to and maintained the stability of Y-box binding protein 1 (YBX1), a potent destabilizer of p53, by impeding its ubiquitination and degradation. Downexpression of YBX1 reversed PIK3CD-AS2-mediated inhibition of p53 signaling. Additionally, the therapeutic effect evaluation of a locked nuclear acid (LNA) specifically targeting PIK3CD-AS2 showed an anti-tumor activity in mice with A549 cells xenograft and p53 wild-type LUAD patient-derived tumor xenograft (PDTX) model. Clinically, the high expression of PIK3CD-AS2 showed a poor disease-free survival in p53 wild-type patients in TCGA database. Our findings suggest that PIK3CD-AS2 regulates LUAD progression and elucidate a new PIK3CD-AS2/YBX1/p53 signaling axis, providing a potential lncRNA-directed therapeutic strategy especially in p53 wild-type LUAD patients.
Collapse
Affiliation(s)
- Xiufen Zheng
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.,Department of Pharmacy, The First Affiliated Hospital of Hainan Medical University, Hainan, 570102, China
| | - Junying Zhang
- Clinical Cancer Research Center, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Tian Fang
- Department of Comparative Medicine, Jinling Hospital, Clinical School of Medical College of Nanjing University, Nanjing, 210093, China
| | - Xiaoxiao Wang
- GCP Research Center, Affiliated Hospital of Nanjing University of Chinese Medicine, Jiangsu Province Hospital of TCM, Nanjing, 210029, China
| | - Siwei Wang
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Zhifei Ma
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Youtao Xu
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Chencheng Han
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Mengting Sun
- Department of Tumor Biobank, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Lin Xu
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China
| | - Jie Wang
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China. .,Department of Tumor Biobank, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China. .,Department of Science & Technology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.
| | - Rong Yin
- Department of Thoracic Surgery, Jiangsu Key Laboratory of Molecular and Translational Cancer Research, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China. .,Department of Tumor Biobank, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China. .,Department of Science & Technology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, 210009, China.
| |
Collapse
|
24
|
Peng X, Gao H, Xu R, Wang H, Mei J, Liu C. The interplay between HIF-1α and noncoding RNAs in cancer. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:27. [PMID: 32014012 PMCID: PMC6998277 DOI: 10.1186/s13046-020-1535-y] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 01/27/2020] [Indexed: 12/19/2022]
Abstract
Hypoxia is a classic characteristic of the tumor microenvironment with a significant impact on cancer progression and therapeutic response. Hypoxia-inducible factor-1 alpha (HIF-1α), the most important transcriptional regulator in the response to hypoxia, has been demonstrated to significantly modulate hypoxic gene expression and signaling transduction networks. In past few decades, growing numbers of studies have revealed the importance of noncoding RNAs (ncRNAs) in hypoxic tumor regions. These hypoxia-responsive ncRNAs (HRNs) play pivotal roles in regulating hypoxic gene expression at the transcriptional, posttranscriptional, translational and posttranslational levels. In addition, as a significant gene expression regulator, ncRNAs exhibit promising roles in regulating HIF-1α expression at multiple levels. In this review, we briefly elucidate the reciprocal regulation between HIF-1α and ncRNAs, as well as their effect on cancer cell behaviors. We also try to summarize the complex feedback loop existing between these two components. Moreover, we evaluated the biomarker potential of HRNs for the diagnosis and prognosis of cancer, as well as the potential clinical utility of shared regulatory mechanisms between HIF-1α and ncRNAs in cancer treatment, providing novel insights into tumorigenicity, which may lead to innovative clinical applications.
Collapse
Affiliation(s)
- Xiafeng Peng
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China.,The First Clinical Medicine School, Nanjing Medical University, Nanjing, 211166, China
| | - Han Gao
- Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, China
| | - Rui Xu
- School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Huiyu Wang
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China
| | - Jie Mei
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China.
| | - Chaoying Liu
- Department of Oncology, Wuxi People's Hospital Affiliated to Nanjing Medical University, 299 Qingyang Road, Wuxi, 214023, China.
| |
Collapse
|