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Duan Y, Yan Y, Fu H, Dong Y, Li K, Ye Z, Dou Y, Huang B, Kang W, Wei GH, Cai Q, Xu D, Zhou D. SNHG15-mediated feedback loop interplays with HNRNPA1/SLC7A11/GPX4 pathway to promote gastric cancer progression. Cancer Sci 2024; 115:2269-2285. [PMID: 38720175 PMCID: PMC11247605 DOI: 10.1111/cas.16181] [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: 01/13/2024] [Revised: 03/26/2024] [Accepted: 04/01/2024] [Indexed: 07/13/2024] Open
Abstract
Dysregulation of long noncoding RNA (lncRNA) expression plays a pivotal role in the initiation and progression of gastric cancer (GC). However, the regulation of lncRNA SNHG15 in GC has not been well studied. Mechanisms for ferroptosis by SNHG15 have not been revealed. Here, we aimed to explore SNHG15-mediated biological functions and underlying molecular mechanisms in GC. The novel SNHG15 was identified by analyzing RNA-sequencing (RNA-seq) data of GC tissues from our cohort and TCGA dataset, and further validated by qRT-PCR in GC cells and tissues. Gain- and loss-of-function assays were performed to examine the role of SNHG15 on GC both in vitro and in vivo. SNHG15 was highly expressed in GC. The enhanced SNHG15 was positively correlated with malignant stage and poor prognosis in GC patients. Gain- and loss-of-function studies showed that SNHG15 was required to affect GC cell growth, migration and invasion both in vitro and in vivo. Mechanistically, the oncogenic transcription factors E2F1 and MYC could bind to the SNHG15 promoter and enhance its expression. Meanwhile, SNHG15 increased E2F1 and MYC mRNA expression by sponging miR-24-3p. Notably, SNHG15 could also enhance the stability of SLC7A11 in the cytoplasm by competitively binding HNRNPA1. In addition, SNHG15 inhibited ferroptosis through an HNRNPA1-dependent regulation of SLC7A11/GPX4 axis. Our results support a novel model in which E2F1- and MYC-activated SNHG15 regulates ferroptosis via an HNRNPA1-dependent modulation of the SLC7A11/GPX4 axis, which serves as the critical effectors in GC progression, and provides a new therapeutic direction in the treatment of GC.
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Affiliation(s)
- Yantao Duan
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Yonghao Yan
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Hongbing Fu
- Department of Gastrointestinal Surgery, Changzheng Hospital, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Yang Dong
- Department of Breast Surgery, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Kun Li
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zaisheng Ye
- Department of Gastrointestinal Surgical Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China
| | - Yi Dou
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Binhao Huang
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Wei Kang
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong Kong, Hong Kong, China
| | - Gong-Hong Wei
- Fudan University Shanghai Cancer Center; MOE Key Laboratory of Metabolism and Molecular Medicine & Department of Biochemistry and Molecular Biology of School of Basic Medical Sciences, Shanghai Medical College of Fudan University, Shanghai, China
| | - Qiliang Cai
- MOE/NHC/CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infections Disease and Biosecurity, Shanghai Frontiers Science Center of Pathogenic Microorganisms and Infection, School of Basic Medical Sciences, Shanghai Medical College, Fudan University, Shanghai, China
| | - Dazhi Xu
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - Donglei Zhou
- Department of Gastric Surgery, Fudan University Shanghai Cancer Center, Shanghai, China
- Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
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2
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Liu D, Shen M, Liu Z, Chen D, Pan Y, Zhang L, Xu X. SP1-induced circ_0017552 modulates colon cancer cell proliferation and apoptosis via up-regulation of NET1. Cancer Genet 2024; 286-287:1-10. [PMID: 38810361 DOI: 10.1016/j.cancergen.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 05/11/2024] [Accepted: 05/11/2024] [Indexed: 05/31/2024]
Abstract
Colon cancer (CC) is a common malignancy over the world and its morbidity and mortality significantly went up in China in recent years. Molecular functions in cancers have gradually been the pivot subject in cancer research. Neuroepithelial cell transforming 1 (NET1) was reported to contribute to prostate cancer and gastric cancer. Our study figured out that NET1 was overexpressed in CC cells. Then, loss-of-function assays revealed that NET1 facilitated CC cell proliferation and repressed CC cell apoptosis. Next, miR-338-3p was confirmed to target NET1. After that, we verified that circ_0017552 which originates from NET1 could positively modulate NET1 expression. Besides, circ_0017552 was a sponge of miR-338-3p. Rescue assays' results demonstrated that circ_0017552 could regulate CC cell proliferation and apoptosis through up-regulation of NET1. A transcription factor named Sp1 (SP1) was found to be present in circ_0017552. SP1 induced transcription of circ_0017552 to facilitate CC cell proliferation and inhibit CC cell apoptosis. In a word, SP1-induced circ_0017552 regulated CC cell proliferation and apoptosis through miR-338-3p/NET1 axis.
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Affiliation(s)
- Daocheng Liu
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China
| | - Minmin Shen
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China
| | - Zhaohui Liu
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China
| | - Dong Chen
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China
| | - Yuan Pan
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China
| | - Lei Zhang
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China
| | - Xiaoping Xu
- Department of Anorectal Surgery, The First People's Hospital of Linping District, Hangzhou 311199, Zhejiang Province, PR China.
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3
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Saeinasab M, Atlasi Y, M Matin M. Functional role of lncRNAs in gastrointestinal malignancies: the peculiar case of small nucleolar RNA host gene family. FEBS J 2024; 291:1353-1385. [PMID: 36282516 DOI: 10.1111/febs.16668] [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: 07/13/2022] [Revised: 09/18/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
Long noncoding RNAs (lncRNAs) play crucial roles in normal physiology and are often de-regulated in disease states such as cancer. Recently, a class of lncRNAs referred to as the small nucleolar RNA host gene (SNHG) family have emerged as important players in tumourigenesis. Here, we discuss new findings describing the role of SNHGs in gastrointestinal tumours and summarize the three main functions by which these lncRNAs promote carcinogenesis, namely: competing with endogenous RNAs, modulating protein function, and regulating epigenetic marking. Furthermore, we discuss how SNHGs participate in different hallmarks of cancer, and how this class of lncRNAs may serve as potential biomarkers in cancer diagnosis and therapy.
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Affiliation(s)
- Morvarid Saeinasab
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Iran
| | - Yaser Atlasi
- Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, UK
| | - Maryam M Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Iran
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, Iran
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4
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Long F, Zhou X, Zhang J, Di C, Li X, Ye H, Pan J, Si J. The role of lncRNA HCG18 in human diseases. Cell Biochem Funct 2024; 42:e3961. [PMID: 38425124 DOI: 10.1002/cbf.3961] [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: 11/23/2023] [Revised: 01/29/2024] [Accepted: 02/16/2024] [Indexed: 03/02/2024]
Abstract
A substantial number of long noncoding RNAs (lncRNAs) have been identified as potent regulators of human disease. Human leukocyte antigen complex group 18 (HCG18) is a new type of lncRNA that has recently been proven to play an important role in the occurrence and development of various diseases. Studies have found that abnormal expression of HCG18 is closely related to the clinicopathological characteristics of many diseases. More importantly, HCG18 was also found to promote disease progression by affecting a series of cell biological processes. This article mainly discusses the expression characteristics, clinical characteristics, biological effects and related regulatory mechanisms of HCG18 in different human diseases, providing a scientific theoretical basis for its early clinical application.
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Affiliation(s)
- Feng Long
- Key Laboratory of TCM Prevention and Treatment of Chronic Diseases, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Xuan Zhou
- Key Laboratory of TCM Prevention and Treatment of Chronic Diseases, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jinhua Zhang
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Cuixia Di
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
| | - Xue Li
- Key Laboratory of TCM Prevention and Treatment of Chronic Diseases, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Hailin Ye
- Key Laboratory of TCM Prevention and Treatment of Chronic Diseases, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jingyu Pan
- Key Laboratory of TCM Prevention and Treatment of Chronic Diseases, School of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, China
| | - Jing Si
- Department of Medical Physics, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, China
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Hashemi M, Nazdari N, Gholamiyan G, Paskeh MDA, Jafari AM, Nemati F, Khodaei E, Abyari G, Behdadfar N, Raei B, Raesi R, Nabavi N, Hu P, Rashidi M, Taheriazam A, Entezari M. EZH2 as a potential therapeutic target for gastrointestinal cancers. Pathol Res Pract 2024; 253:154988. [PMID: 38118215 DOI: 10.1016/j.prp.2023.154988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 12/22/2023]
Abstract
Gastrointestinal (GI) cancers continue to be a major cause of mortality and morbidity globally. Understanding the molecular pathways associated with cancer progression and severity is essential for creating effective cancer treatments. In cancer research, there is a notable emphasis on Enhancer of zeste homolog 2 (EZH2), a key player in gene expression influenced by its irregular expression and capacity to attach to promoters and alter methylation status. This review explores the impact of EZH2 signaling on various GI cancers, such as colorectal, gastric, pancreatic, hepatocellular, esophageal, and cholangiocarcinoma. The primary function of EZH2 signaling is to facilitate the accelerated progression of cancer cells. Additionally, EZH2 has the capacity to modulate the reaction of GI cancers to chemotherapy and radiotherapy. Numerous pathways, including long non-coding RNAs and microRNAs, serve as upstream regulators of EZH2 in these types of cancer. EZH2's enzymatic activity enables it to attach to target gene promoters, resulting in methylation that modifies their expression. EZH2 could be considered as an independent prognostic factor, with increased expression correlating with a worse disease prognosis. Additionally, a range of gene therapies including small interfering RNA, and anti-tumor agents are being explored to target EZH2 for cancer treatment. This comprehensive review underscores the current insights into EZH2 signaling in gastrointestinal cancers and examines the prospect of therapies targeting EZH2 to enhance patient outcomes.
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Affiliation(s)
- Mehrdad Hashemi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Naghmeh Nazdari
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ghazaleh Gholamiyan
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mahshid Deldar Abad Paskeh
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Ali Moghadas Jafari
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Fateme Nemati
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Elaheh Khodaei
- Department of Dermatology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Ghazal Abyari
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Nazanin Behdadfar
- Young Researchers and Elite Club, Buinzahra Branch, Islamic Azad University, Buinzahra, Iran
| | - Behnaz Raei
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Rasoul Raesi
- Department of Health Services Management, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical-Surgical Nursing, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Noushin Nabavi
- Department of Urologic Sciences and Vancouver Prostate Centre, University of British Columbia, V6H3Z6 Vancouver, BC, Canada
| | - Peng Hu
- Department of Emergency, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, China
| | - Mohsen Rashidi
- Department Pharmacology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran; The Health of Plant and Livestock Products Research Center, Mazandaran University of Medical Sciences, Sari, Iran.
| | - Afshin Taheriazam
- Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Orthopedics, Faculty of medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Maliheh Entezari
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Farhikhtegan Medical Convergence sciences Research Center, Farhikhtegan Hospital Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
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6
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Yang X, Du Y, Luo L, Xu X, Xiong S, Yang X, Guo L, Liang T. Deciphering the Enigmatic Influence: Non-Coding RNAs Orchestrating Wnt/β-Catenin Signaling Pathway in Tumor Progression. Int J Mol Sci 2023; 24:13909. [PMID: 37762212 PMCID: PMC10530696 DOI: 10.3390/ijms241813909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/04/2023] [Accepted: 09/08/2023] [Indexed: 09/29/2023] Open
Abstract
Dysregulated expression of specific non-coding RNAs (ncRNAs) has been strongly linked to tumorigenesis, cancer progression, and therapeutic resistance. These ncRNAs can act as either oncogenes or tumor suppressors, thereby serving as valuable diagnostic and prognostic markers. Numerous studies have implicated the participation of ncRNAs in the regulation of diverse signaling pathways, including the pivotal Wnt/β-catenin signaling pathway that is widely acknowledged for its pivotal role in embryogenesis, cellular proliferation, and tumor biology control. Recent emerging evidence has shed light on the capacity of ncRNAs to interact with key components of the Wnt/β-catenin signaling pathway, thereby modulating the expression of Wnt target genes in cancer cells. Notably, the activity of this pathway can reciprocally influence the expression levels of ncRNAs. However, comprehensive analysis investigating the specific ncRNAs associated with the Wnt/β-catenin signaling pathway and their intricate interactions in cancer remains elusive. Based on these noteworthy findings, this review aims to unravel the intricate associations between ncRNAs and the Wnt/β-catenin signaling pathway during cancer initiation, progression, and their potential implications for therapeutic interventions. Additionally, we provide a comprehensive overview of the characteristics of ncRNAs and the Wnt/β-catenin signaling pathway, accompanied by a thorough discussion of their functional roles in tumor biology. Targeting ncRNAs and molecules associated with the Wnt/β-catenin signaling pathway may emerge as a promising and effective therapeutic strategy in future cancer treatments.
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Affiliation(s)
- Xinbing Yang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China; (X.Y.); (Y.D.); (L.L.); (X.X.)
| | - Yajing Du
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China; (X.Y.); (Y.D.); (L.L.); (X.X.)
| | - Lulu Luo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China; (X.Y.); (Y.D.); (L.L.); (X.X.)
| | - Xinru Xu
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China; (X.Y.); (Y.D.); (L.L.); (X.X.)
| | - Shizheng Xiong
- Department of Bioinformatics, Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (S.X.); (X.Y.)
| | - Xueni Yang
- Department of Bioinformatics, Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (S.X.); (X.Y.)
| | - Li Guo
- Department of Bioinformatics, Smart Health Big Data Analysis and Location Services Engineering Lab of Jiangsu Province, School of Geographic and Biologic Information, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; (S.X.); (X.Y.)
| | - Tingming Liang
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, School of Life Science, Nanjing Normal University, Nanjing 210023, China; (X.Y.); (Y.D.); (L.L.); (X.X.)
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7
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Huldani H, Gandla K, Asiri M, Romero-Parra RM, Alsalamy A, Hjazi A, Najm MAA, Fawaz A, Hussien BM, Singh R. A comprehensive insight into the role of small nucleolar RNAs (snoRNAs) and SNHGs in human cancers. Pathol Res Pract 2023; 249:154679. [PMID: 37567032 DOI: 10.1016/j.prp.2023.154679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/04/2023] [Accepted: 07/07/2023] [Indexed: 08/13/2023]
Abstract
Long non-coding RNAs (lncRNAs), which comprise most non-coding RNAs (ncRNAs), have recently become a focus of cancer research. How many functional ncRNAs exist is still a matter of debate. Although insufficient evidence supports that most lncRNAs function as transcriptional by-products, it is widely known that an increasing number of lncRNAs play essential roles in cells. Small nucleolar RNAs (snoRNAs), 60-300 nucleotides in length, have been better studied than long non-coding RNAs (lncRNAs) and are predominantly present in the nucleolus. Most snoRNAs are encoded in introns of protein- and non-protein-coding genes called small nucleolar RNA host genes (SNHGs). In this article, we explore the biology and characteristics of SNHGs and their role in developing human malignancies. In addition, we provide an update on the ability of these snoRNAs to serve as prognostic and diagnostic variables in various forms of cancer.
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Affiliation(s)
- Huldani Huldani
- Department of Physiology, Faculty of Medicine, Lambung Mangkurat University, Banjarmasin, South Kalimantan, Indonesia
| | - Kumaraswamy Gandla
- Department of Pharmaceutical Analysis, Chaitanya Deemed to be University, Hanamkonda, India.
| | - Mohammed Asiri
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | | | - Ali Alsalamy
- College of Medical Technology, Imam Ja'afar Al-Sadiq University, Al-Muthanna 66002, Iraq
| | - Ahmed Hjazi
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
| | - Mazin A A Najm
- Pharmaceutical Chemistry Department, College of Pharmacy, Al-Ayen University, Thi-Qar, Iraq
| | - Albab Fawaz
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Beneen M Hussien
- Medical Laboratory Technology Department, College of Medical Technology, The Islamic University, Najaf, Iraq
| | - Rajesh Singh
- Uttaranchal Institute of Technology, Uttaranchal University, Dehradun 248007, India
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Li M, Sun S, Bian Z, Yao S, Liu M, You X, Li M. SNHG15 promotes chemoresistance and glycolysis in colorectal cancer. Pathol Res Pract 2023; 246:154480. [PMID: 37148838 DOI: 10.1016/j.prp.2023.154480] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/27/2023] [Accepted: 04/22/2023] [Indexed: 05/08/2023]
Abstract
Long noncoding RNAs (lncRNAs) play an important role in tumor progression. Small nucleolar RNA host gene 15 (SNHG15) is a lncRNA that has been confirmed to play an oncogenic role in multiple cancer types. However, its role in glycolysis and chemoresistance in colorectal cancer (CRC) is unclear. The expression of SNHG15 in CRC was analyzed using data from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) databases by bioinformatics methods. Cell Counting Kit-8 (CCK-8) and colony formation assays were used to evaluate cell viability. Cell sensitivity to 5-fluorouracil (5-FU) was detected by CCK-8. Glucose absorption and lactate production were used to evaluate the impact of SNHG15 on glycolysis. RNA-seq, real-time fluorescence quantitative reverse transcription PCR (RT-qPCR) and Western blotting (WB) were used to reveal the potential molecular mechanism of SNHG15 in CRC. SNHG15 was upregulated in CRC tissues compared with paired noncancerous tissues. Ectopic SNHG15 expression increased proliferation, 5-FU chemoresistance, and glycolysis in CRC cells. In contrast, SNHG15 knockdown inhibited CRC proliferation, 5-FU chemoresistance and glycolysis. Multiple pathways, including apoptosis and glycolysis, were potentially regulated by SNHG15 based on RNA-seq and pathway enrichment analyses. RT-qPCR and WB experiments confirmed that SNHG15 promoted the expression of TYMS, BCL2, GLUT1 and PKM2 in CRC cells. In conclusion, SNHG15 promotes 5-FU chemoresistance and glycolysis in CRC by potentially regulating the expression of TYMS, BCL2, GLUT1 and PKM2 and appears to be a new target for cancer therapy.
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Affiliation(s)
- Min Li
- Pharmacy Department, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214100, China.
| | - Shengbai Sun
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China
| | - Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China
| | - Surui Yao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu 214062, China
| | - Meng Liu
- Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu 214122, China
| | - Xiaohong You
- Pharmacy Department, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214100, China.
| | - Min Li
- Pharmacy Department, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu 214100, China
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9
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Lin Z, Lin J. Circ_0004585 Facilitates Tumorigenesis of Colorectal Cancer Via Modulating the miR-338-3p/ZFX Axis and Activating the MEK/ERK Pathway. Cell Mol Bioeng 2023; 16:159-171. [PMID: 37096071 PMCID: PMC10121944 DOI: 10.1007/s12195-022-00756-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 12/06/2022] [Indexed: 01/22/2023] Open
Abstract
Background Colorectal cancer (CRC) is a common malignant tumor in the digestive tract. Circular RNAs (circRNAs) have been identified as crucial regulators of tumorigenesis. However, the role and potential mechanism of circ_0004585 in CRC are poorly understood. Methods The expression of circ_0004585, microRNA-338-3p (miR-338-3p), and zinc finger protein X-linked (ZFX) was detected by quantitative real-time PCR and Western blot. Cell proliferation, cell cycle arrest, apoptosis, and angiogenesis were evaluated by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT), 5-Ethynyl-2'-deoxyuridine (EdU), flow cytometry and tube formation assays. Western blot assay was applied to detect the expression of epithelial-mesenchymal transition (EMT)-related proteins and MEK/ERK signaling pathway-related proteins. A xenograft model was used to analyze tumor growth in vivo. The targeted relationship between miR-338-3p and circ_0004585/ZFX was verified by a dual-luciferase reporter assay. Results Circ_0004585 and ZFX were up-regulated, while miR-338-3p was down-regulated in CRC tissues and cells. Silencing of circ_0004585 inhibited proliferation, angiogenesis, and EMT and triggered apoptosis in CRC cells. Consistently, circ_0004585 depletion blocked tumor growth in vivo. Circ_0004585 contributed to CRC cell development via sequestering miR-338-3p. Also, miR-338-3p hindered the malignant progression of CRC cells by targeting ZFX. Circ_0004585 activated MEK/ERK pathway via regulating ZFX. Conclusion Circ_0004585 facilitated CRC progression through modulating miR-338-3p/ZFX/MEK/ERK pathway, which might provide a potential therapeutic target for CRC. Supplementary Information The online version contains supplementary material available at 10.1007/s12195-022-00756-6.
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Affiliation(s)
- Zenghai Lin
- Department of General Surgery, Guangdong Province, The First Affiliated Hospital of Shantou University Medical College, No. 57 Changping Road, Shantou City, 515041 Guangdong China
| | - Jianwei Lin
- Department of General Surgery, Guangdong Province, The First Affiliated Hospital of Shantou University Medical College, No. 57 Changping Road, Shantou City, 515041 Guangdong China
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10
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Zhang N, Lei T, Xu T, Zou X, Wang Z. Long noncoding RNA SNHG15: A promising target in human cancers. Front Oncol 2023; 13:1108564. [PMID: 37056344 PMCID: PMC10086267 DOI: 10.3389/fonc.2023.1108564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Accepted: 03/10/2023] [Indexed: 03/30/2023] Open
Abstract
As oncogenes or tumor suppressor genes, lncRNAs played an important role in tumorigenesis and the progression of human cancers. The lncRNA SNHG15 has recently been revealed to be dysregulated in malignant tumors, suggesting the aberrant expression of which contributes to clinical features and regulates various oncogenic processes. We have selected extensive literature focused on SNHG15 from electronic databases, including studies relevant to its clinical significance and the critical events in cancer-related processes such as cell proliferation, apoptosis, autophagy, metastasis, and drug resistance. This review summarized the current understanding of SNHG15 in cancer, mainly focusing on the pathological features, known biological functions, and underlying molecular mechanisms. Furthermore, SNHG15 has been well-documented to be an effective diagnostic and prognostic marker for tumors, offering novel therapeutic interventions in specific subsets of cancer cells.
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Affiliation(s)
- Niu Zhang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tianyao Lei
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Tianwei Xu
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoteng Zou
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zhaoxia Wang
- Department of Oncology, The Second Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
- *Correspondence: Zhaoxia Wang,
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11
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Li Y, Huang HQ, Huang ZH, Yu ND, Ye XL, Jiang MC, Chen LM. SNHG15 enhances cisplatin resistance in lung adenocarcinoma by affecting the DNA repair capacity of cancer cells. Diagn Pathol 2023; 18:33. [PMID: 36864456 PMCID: PMC9979449 DOI: 10.1186/s13000-023-01291-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 01/12/2023] [Indexed: 03/04/2023] Open
Abstract
BACKGROUND Lung adenocarcinoma (LUAD) is a prevalent malignancy. SNHG15 has been demonstrated to be oncogenic in many kinds of cancers, however the mechanism of SNHG15 in LUAD cisplatin (DDP) resistance remains unclear. In this study, we demonstrated the effect of SNHG15 on DDP resistance in LUAD and its related mechanism. METHODS Bioinformatics analysis was adopted to assess SNHG15 expression in LUAD tissues and predict the downstream genes of SNHG15. The binding relationship between SNHG15 and downstream regulatory genes was proved through RNA immunoprecipitation, chromatin immunoprecipitation and dual-luciferase reporter assays. Cell counting kit-8 assay was adopted to evaluate LUAD cell viability, and gene expression was determined by Western blot and quantitative real-time polymerase chain reaction. We then performed comet assay to assess DNA damage. Cell apoptosis was detected by Tunnel assay. Xenograft animal models were created to test the function of SNHG15 in vivo. RESULTS SNHG15 was up-regulated in LUAD cells. Moreover, SNHG15 was also highly expressed in drug-resistant LUAD cells. Down-regulated SNHG15 strengthened the sensitivity of LUAD cells to DDP and induced DNA damage. SNHG15 could elevate ECE2 expression through binding with E2F1, and it could induce DDP resistance by modulating the E2F1/ECE2 axis. In vivo experiments verified that the SNHG15 could enhance DDP resistance in LUAD tissue. CONCLUSION The results suggested that SNHG15 could up-regulate ECE2 expression by recruiting E2F1, thereby enhancing the DDP resistance of LUAD.
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Affiliation(s)
- Yong Li
- grid.411176.40000 0004 1758 0478Department of Respiration Medicine, Fujian Medical University Union Hospital, No.29 Xin Quan Road, Fuzhou, 350000 Fujian China
| | - Hui-Qin Huang
- grid.488150.0Fujian Provincial Key Laboratory of Medical Testing, Fujian Academy of Medical Sciences, Fuzhou, 350000 Fujian China
| | - Zheng-Hui Huang
- grid.411176.40000 0004 1758 0478Department of Respiration Medicine, Fujian Medical University Union Hospital, No.29 Xin Quan Road, Fuzhou, 350000 Fujian China
| | - Nan-Ding Yu
- grid.411176.40000 0004 1758 0478Department of Respiration Medicine, Fujian Medical University Union Hospital, No.29 Xin Quan Road, Fuzhou, 350000 Fujian China
| | - Xiang-Li Ye
- grid.411176.40000 0004 1758 0478Department of Respiration Medicine, Fujian Medical University Union Hospital, No.29 Xin Quan Road, Fuzhou, 350000 Fujian China
| | - Mei-Chen Jiang
- grid.411176.40000 0004 1758 0478Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, 350000 Fujian China
| | - Li-Min Chen
- Department of Respiration Medicine, Fujian Medical University Union Hospital, No.29 Xin Quan Road, Fuzhou, 350000, Fujian, China.
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12
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Wang X, Cheng H, Zhao J, Li J, Chen Y, Cui K, Tian L, Zhang J, Li C, Sun S, Feng Y, Yao S, Bian Z, Huang S, Fei B, Huang Z. Long noncoding RNA DLGAP1-AS2 promotes tumorigenesis and metastasis by regulating the Trim21/ELOA/LHPP axis in colorectal cancer. Mol Cancer 2022; 21:210. [PMID: 36376892 PMCID: PMC9664729 DOI: 10.1186/s12943-022-01675-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) have driven research focused on their effects as oncogenes or tumor suppressors involved in carcinogenesis. However, the functions and mechanisms of most lncRNAs in colorectal cancer (CRC) remain unclear. Methods The expression of DLGAP1-AS2 was assessed by quantitative RT-PCR in multiple CRC cohorts. The impacts of DLGAP1-AS2 on CRC growth and metastasis were evaluated by a series of in vitro and in vivo assays. Furthermore, the underlying mechanism of DLGAP1-AS2 in CRC was revealed by RNA pull down, RNA immunoprecipitation, RNA sequencing, luciferase assays, chromatin immunoprecipitation, and rescue experiments. Results We discovered that DLGAP1-AS2 promoted CRC tumorigenesis and metastasis by physically interacting with Elongin A (ELOA) and inhibiting its protein stability by promoting tripartite motif containing 21 (Trim21)-mediated ubiquitination modification and degradation of ELOA. In particular, we revealed that DLGAP1-AS2 decreases phospholysine phosphohistidine inorganic pyrophosphate phosphatase (LHPP) expression by inhibiting ELOA-mediated transcriptional activating of LHPP and thus blocking LHPP-dependent suppression of the AKT signaling pathway. In addition, we also demonstrated that DLGAP1-AS2 was bound and stabilized by cleavage and polyadenylation specificity factor (CPSF2) and cleavage stimulation factor (CSTF3). Conclusions The discovery of DLGAP1-AS2, a promising prognostic biomarker, reveals a new dimension into the molecular pathogenesis of CRC and provides a prospective treatment target for this disease. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01675-w.
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13
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Wang W, Zhou Z, Dai X, Wang H, Jin J, Min K, Wang Y, Lv M, Liu Y, Zhou Y. LncRNA-ENST00000543604 exerts a tumor-promoting effect via miRNA 564/AEG-1 or ZNF326/EMT and predicts the prognosis of and chemotherapeutic effect in colorectal cancer. Front Oncol 2022; 12:960481. [PMID: 36081570 PMCID: PMC9445881 DOI: 10.3389/fonc.2022.960481] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022] Open
Abstract
Objectives Colorectal cancer(CRC) is a common malignant tumor. Recent studies have found that lncRNAs play an important role in the occurrence and development of colorectal cancer. Methods Based on high-throughput sequencing results of fresh CRC tissues and adjacent tissues, we identified lncRNA-ENST00000543604 (lncRNA 604) as the research object by qRT-PCR in CRC tissues and cells. We explored the mechanism of lncRNA 604 action by using luciferin reporter, qRT-PCR and Western blot assays. Kaplan-Meier survival analysis and a Cox regression model were used to analyze the correlation of lncRNA 604 and its regulatory molecules with the prognosis of and chemotherapy efficacy in CRC patients. Results In this study, we found that the expression levels of lncRNA 604 were increased in CRC. LncRNA 604 could promote CRC cell proliferation and metastasis through the miRNA 564/AEG-1 or ZNF326/EMT signaling axis in vivo and in vitro. LncRNA 604 could predict the prognosis of CRC and was an independent negative factor. LncRNA 604 exerted a synergistic effect with miRNA 564 or ZNF326 on the prognosis of CRC. LncRNA 604 could improve chemoresistance by increasing the expression of AEG-1, NF-κB, and ERCC1. Conclusions Our study demonstrated that lncRNA 604 could promote the progression of CRC via the lncRNA 604/miRNA 564/AEG-1/EMT or lncRNA 604/ZNF326/EMT signaling axis. LncRNA 604 could improve chemoresistance by increasing drug resistance protein expression.
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Affiliation(s)
- Weimin Wang
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yangzhou University, Jiangsu, China
| | - Zhen Zhou
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
- Department of Chinese Medicine, Nanjing University of Chinese Medicine, Jiangsu, Nanjing, China
| | - Xiaojun Dai
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
| | - Haibo Wang
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
| | - Jun Jin
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yangzhou University, Jiangsu, China
| | - Ke Min
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yangzhou University, Jiangsu, China
| | - Yunfan Wang
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yangzhou University, Jiangsu, China
| | - Mengying Lv
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
| | - Yanqing Liu
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yangzhou University, Jiangsu, China
- *Correspondence: Yanqing Liu, ; Yan Zhou,
| | - Yan Zhou
- Institute of Combining Chinese Traditional and Western Medicine, Medical College, Yangzhou University, Jiangsu, China
- Department of Oncology, Yixing Hospital Affiliated to Medical College of Yangzhou University, Yangzhou University, Jiangsu, China
- *Correspondence: Yanqing Liu, ; Yan Zhou,
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14
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The Role of SNHG15 in the Pathogenesis of Hepatocellular Carcinoma. J Pers Med 2022; 12:jpm12050753. [PMID: 35629174 PMCID: PMC9145272 DOI: 10.3390/jpm12050753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/18/2022] [Accepted: 05/03/2022] [Indexed: 02/07/2023] Open
Abstract
Long non-coding RNAs (lncRNAs) are transcripts of more than 200 nucleotides which cannot be translated into proteins. Small nucleolar RNA host gene 15 (SNHG15) is a lncRNA whose dysregulation has been found to have an important impact on carcinogenesis and affect the prognosis of cancer patients in various cancer types. Hepatocellular carcinoma (HCC) is one of the most common cancers with a poor long-term prognosis, while the best prognostic factor of the disease is its early diagnosis and surgery. Consequently, the investigation of the mechanisms of hepatocarcinogenesis, as well as the discovery of efficient molecular markers and therapeutic targets are of great significance. An extensive literature search was performed in MEDLINE in order to identify clinical studies that tried to reveal the role of SNHG15 in HCC. We used keywords such as ‘HCC’, ‘hepatocellular carcinoma’, ‘SNHG15’ and ‘clinical study’. Finally, we included four studies written in English, published during the period 2016–2021. It was revealed that SNHG15 is related to the appearance of HCC via different routes and its over-expression affects the overall survival of the patients. More assays are required in order to clarify the potential role of SNHG15 as a prognostic tool and therapeutic target in HCC.
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15
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Olabayo Olatubosun M, Abubakar MB, Batiha GES, Malami I, Ibrahim KG, Abubakar B, Bello MB, Alexiou A, Imam MU. LncRNA SNHG15: A potential therapeutic target in the treatment of colorectal cancer. Chem Biol Drug Des 2022; 101:1138-1150. [PMID: 35191201 DOI: 10.1111/cbdd.14036] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 01/20/2022] [Accepted: 02/14/2022] [Indexed: 11/28/2022]
Abstract
The global burden of colorectal cancer (CRC) is increasing annually. CRC could develop from genetic and phenotypic factors involving changes in gene expression. Incredibly, the human genome transcribes into non-coding RNAs, among which long non-coding RNAs (lncRNAs) signify the most crucial part of the transcriptome in multicellular organisms. lncRNAs affect gene expression at multiple levels, from transcription to protein localization and stability. Recent studies have implicated lncRNA small nucleolar RNA host gene 15 (SNHG15) in cancers occurrence and progression. Previously, an indication suggests SNHG15 overexpression triggers proliferation, metastasis, and impedes apoptosis in CRC. Further, through its activity of binding micro-RNAs, lncRNA SNHG15 modulates genes associated with CRC progression and promotes CRC resistance to chemotherapeutic drugs. Here we reviewed recent findings on the various mechanisms and roles of lncRNA SNHG15 implicated in CRC tumorigenesis. We further highlight how SNHG15 plays a vital role in regulating critical pathways linked to the development and progression of CRC. Finally, we highlight how SNHG15 can be modulated for CRC treatments and the various therapeutic strategies to be implored when targeting SNHG15 in the context of CRC treatments. Findings from these studies present SNHG15 as a potential therapeutic target for preventing and treating CRC.
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Affiliation(s)
- Mutolib Olabayo Olatubosun
- Department of Biochemistry and Molecular Biology, Faculty of Sciences, Usmanu Danfodiyo University, P.M.B 2346, Sokoto, Nigeria.,Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria
| | - Murtala Bello Abubakar
- Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria.,Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, Usmanu Danfodiyo University, P.M.B, 2254, Sokoto, Nigeria
| | - Gaber El-Saber Batiha
- Department of Pharmacology and Therapeutics, Faculty of Veterinary Medicine, Damanhour University, Damanhour, 22511, AlBeheira, Egypt
| | - Ibrahim Malami
- Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria.,Department of Pharmacognosy and Ethnopharmacy, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, P.M.B 2346, Sokoto, Nigeria
| | - Kasimu Ghandi Ibrahim
- Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria.,Department of Physiology, Faculty of Basic Medical Sciences, College of Health Sciences, Usmanu Danfodiyo University, P.M.B, 2254, Sokoto, Nigeria
| | - Bilyaminu Abubakar
- Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria.,Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, Usmanu Danfodiyo University, P.M.B 2346, Sokoto, Nigeria
| | - Muhammad Bashir Bello
- Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria.,Department of Veterinary Microbiology, Faculty of Veterinary Medicine, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria
| | - Athanasios Alexiou
- Novel Global Community Educational Foundation, Hebersham, Australia.,AFNP Med Austria, Wien, Austria
| | - Mustapha Umar Imam
- Centre for Advanced Medical Research and Training, Usmanu Danfodiyo University, P.M.B. 2346, Sokoto, Nigeria.,Department of Medical Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, Usmanu Danfodiyo University, P.M.B, 2254, Sokoto, Nigeria
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16
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Zhang J, Cui K, Huang L, Yang F, Sun S, Bian Z, Wang X, Li C, Yin Y, Huang S, Zhou L, Fei B, Huang Z. SLCO4A1-AS1 promotes colorectal tumourigenesis by regulating Cdk2/c-Myc signalling. J Biomed Sci 2022; 29:4. [PMID: 35039060 PMCID: PMC8762969 DOI: 10.1186/s12929-022-00789-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 12/26/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND SLCO4A1-AS1 was found to be upregulated in several cancer types, including colorectal cancer (CRC). However, the detailed roles of SLCO4A1-AS1 in CRC remain to be elucidated. Therefore, we investigated the functions, mechanism, and clinical significance of SLCO4A1-AS1 in colorectal tumourigenesis. METHODS We measured the expression of SLCO4A1-AS1 in CRC tissues using qRT-PCR and determined its correlation with patient prognosis. Promoter methylation analyses were used to assess the methylation status of SLCO4A1-AS1. Gain- and loss-of-function assays were used to evaluate the effects of SLCO4A1-AS1 on CRC growth in vitro and in vivo. RNA pull-down, RNA immunoprecipitation, RNA-seq, luciferase reporter and immunohistochemistry assays were performed to identify the molecular mechanism of SLCO4A1-AS1 in CRC. RESULTS SLCO4A1-AS1 was frequently upregulated in CRC tissues based on multiple CRC cohorts and was associated with poor prognoses. Aberrant overexpression of SLCO4A1-AS1 in CRC is partly attributed to the DNA hypomethylation of its promoter. Ectopic SLCO4A1-AS1 expression promoted CRC cell growth, whereas SLCO4A1-AS1 knockdown repressed CRC proliferation both in vitro and in vivo. Mechanistic investigations revealed that SLCO4A1-AS1 functions as a molecular scaffold to strengthen the interaction between Hsp90 and Cdk2, promoting the protein stability of Cdk2. The SLCO4A1-AS1-induced increase in Cdk2 levels activates the c-Myc signalling pathway by promoting the phosphorylation of c-Myc at Ser62, resulting in increased tumour growth. CONCLUSIONS Our data demonstrate that SLCO4A1-AS1 acts as an oncogene in CRC by regulating the Hsp90/Cdk2/c-Myc axis, supporting SLCO4A1-AS1 as a potential therapeutic target and prognostic factor for CRC.
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Affiliation(s)
- Jia Zhang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Kaisa Cui
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Liuying Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Fan Yang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Shengbai Sun
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Xue Wang
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Chaoqun Li
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Yuan Yin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Shengling Huang
- Institutes of Biomedical Sciences and Shanghai Cancer Center, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Leyuan Zhou
- Department of Radiation Oncology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, China
| | - Bojian Fei
- Department of Surgical Oncology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Zhaohui Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China.
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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17
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Sun S, Li C, Cui K, Liu B, Zhou M, Cao Y, Zhang J, Bian Z, Fei B, Huang Z. Hsa_circ_0062682 Promotes Serine Metabolism and Tumor Growth in Colorectal Cancer by Regulating the miR-940/PHGDH Axis. Front Cell Dev Biol 2021; 9:770006. [PMID: 34957102 PMCID: PMC8692793 DOI: 10.3389/fcell.2021.770006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/15/2021] [Indexed: 01/22/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies globally. Increasing evidence indicates that circular RNAs (circRNAs) play a pivotal role in various cancers. The present study focused on exploring the role of a functionally unknown circRNA, hsa_circ_0062682 (circ_0062682), in CRC. By online analyses and experimental validations, we showed that circ_0062682 expression was aberrantly increased in CRC tissues compared with paired normal tissues. Increased expression of circ_0062682 in CRC notably correlated with a poor prognosis and advanced tumor stage. Functional experiments showed that circ_0062682 knockdown reduced CRC growth both in vitro and in vivo. Mechanistically, we revealed that circ_0062682 could sponge miR-940 and identified D-3-phosphoglycerate dehydrogenase (PHGDH), a key oxidoreductase involved in serine biosynthesis, as a novel target of miR-940. Silencing miR-940 expression could mimic the inhibitory effect of circ_0062682 knockdown on CRC proliferation. The expression of PHGDH was downregulated in circ_0062682-depleted or miR-940 overexpressing CRC cells at both the mRNA and protein levels. Circ_0062682 knockdown suppressed CRC growth by decreasing PHGDH expression and serine production via miR-940. Taken together, these data demonstrate, for the first time, that circ_0062682 promotes serine metabolism and tumor growth in CRC by regulating the miR-940/PHGDH axis, suggesting circ_0062682 as a potential novel therapeutic target for CRC.
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Affiliation(s)
- Shengbai Sun
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Chaoqun Li
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Kaisa Cui
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Bingxin Liu
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Mingyue Zhou
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yulin Cao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jia Zhang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Bojian Fei
- Department of Gastrointestinal Surgery, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Zhaohui Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
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18
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Bian Z, Zhou M, Cui K, Yang F, Cao Y, Sun S, Liu B, Gong L, Li J, Wang X, Li C, Yao S, Yin Y, Huang S, Fei B, Huang Z. SNHG17 promotes colorectal tumorigenesis and metastasis via regulating Trim23-PES1 axis and miR-339-5p-FOSL2-SNHG17 positive feedback loop. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2021; 40:360. [PMID: 34782005 PMCID: PMC8591805 DOI: 10.1186/s13046-021-02162-8] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 10/30/2021] [Indexed: 12/22/2022]
Abstract
Background Small nucleolar RNA host gene (SNHG) long noncoding RNAs (lncRNAs) are frequently dysregulated in human cancers and involved in tumorigenesis and progression. SNHG17 has been reported as a candidate oncogene in several cancer types, however, its regulatory role in colorectal cancer (CRC) is unclear. Methods SNHG17 expression in multiple CRC cohorts was assessed by RT-qPCR or bioinformatic analyses. Cell viability was evaluated using Cell Counting Kit-8 (CCK-8) and colony formation assays. Cell mobility and invasiveness were assessed by Transwell assays. Tumor xenograft and metastasis models were applied to confirm the effects of SNHG17 on CRC tumorigenesis and metastasis in vivo. Immunohistochemistry staining was used to measure protein expression in cancer tissues. RNA pull-down, RNA immunoprecipitation, chromatin immunoprecipitation, and dual luciferase assays were used to investigate the molecular mechanism of SNHG17 in CRC. Results Using multiple cohorts, we confirmed that SNHG17 is aberrantly upregulated in CRC and correlated with poor survival. In vitro and in vivo functional assays indicated that SNHG17 facilitates CRC proliferation and metastasis. SNHG17 impedes PES1 degradation by inhibiting Trim23-mediated ubiquitination of PES1. SNHG17 upregulates FOSL2 by sponging miR-339-5p, and FOSL2 transcription activates SNHG17 expression, uncovering a SNHG17-miR-339-5p-FOSL2-SNHG17 positive feedback loop. Conclusions We identified SNHG17 as an oncogenic lncRNA in CRC and identified abnormal upregulation of SNHG17 as a prognostic risk factor for CRC. Our mechanistic investigations demonstrated, for the first time, that SNHG17 promotes tumor growth and metastasis through two different regulatory mechanisms, SNHG17-Trim23-PES1 axis and SNHG17-miR-339-5p-FOSL2-SNHG17 positive feedback loop, which may be exploited for CRC therapy. Supplementary Information The online version contains supplementary material available at 10.1186/s13046-021-02162-8.
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Affiliation(s)
- Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Mingyue Zhou
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Kaisa Cui
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Fan Yang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Yulin Cao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Shengbai Sun
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Bingxin Liu
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Liang Gong
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Jiuming Li
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Xue Wang
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China
| | - Chaoqun Li
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Surui Yao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Yuan Yin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China
| | - Shenglin Huang
- Fudan University Shanghai Cancer Center and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China
| | - Bojian Fei
- Department of Surgical Oncology, Affiliated Hospital of Jiangnan University, 200 Hui He Road, Wuxi, 214062, Jiangsu, China.
| | - Zhaohui Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, 214062, Jiangsu, China. .,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, 214122, Jiangsu, China.
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lncRNA SNHG15 Promotes Ovarian Cancer Progression through Regulated CDK6 via Sponging miR-370-3p. BIOMED RESEARCH INTERNATIONAL 2021; 2021:9394563. [PMID: 34734088 PMCID: PMC8560251 DOI: 10.1155/2021/9394563] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/28/2021] [Indexed: 11/18/2022]
Abstract
Ovarian cancer is a kind of cancer from the female genital tract; the molecular mechanism still needs to be explored. lncRNA plays a vital role in tumorigenesis and development. Our aim was to identify oncogenic lncRNAs in ovarian cancer and explore the potential molecular mechanism. SNHG15 was initially identified by using GEO datasets (GSE135886 and GSE119054) and validated by tumor tissues and the cell line, identifying that SNHG15 was upregulated in ovarian cancer. Besides, high SNHG15 indicated poor prognosis in ovarian cancer. Furthermore, knockdown SNHG15 suppresses ovarian cancer proliferation and promotes apoptosis. Mechanistically, SNHG15 promotes proliferation through upregulated CDK6 via sponging miR-370-3p. Taken together, our findings emphasize the important role of SNHG15 in ovarian cancer, suggesting that SNHG15 may be a promising target for ovarian cancer.
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20
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Han P, Zhao J, Gao L. Increased serum exosomal long non-coding RNA SNHG15 expression predicts poor prognosis in non-small cell lung cancer. J Clin Lab Anal 2021; 35:e23979. [PMID: 34551140 PMCID: PMC8605147 DOI: 10.1002/jcla.23979] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 08/15/2021] [Accepted: 08/17/2021] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND Circulating long non-coding RNAs (lncRNAs) are emerging as promising biomarkers for non-small cell lung cancer (NSCLC). This study aimed to detect serum exosomal lncRNA SNHG15 expression in NSCLC and evaluate its potential clinical value. METHODS A total of 238 serum samples were collected from 118 patients with NSCLC, 40 patients with benign pulmonary lesions and 80 healthy volunteers. The expression levels of serum exosomal lncRNA SNHG15 were measured by quantitative real-time polymerase chain reaction (qRT-PCR). Then, the relationship between serum exosomal lncRNA SNHG15 expression and clinical parameters was analyzed. RESULTS The serum exosomal lncRNA SNHG15 expression was markedly higher in NSCLC patients compared to patients with benign pulmonary lesions and normal controls. As expected, serum exosomal lncRNA SNHG15 was greatly decreased after surgery. High serum exosomal lncRNA SNHG15 expression was closely associated with poor differentiation (p=0.035), positive lymph node metastasis (p=0.009) and advanced TNM stage (p<0.001). Receiver operating characteristic (ROC) curve analysis demonstrated that serum exosomal lncRNA SNHG15 well differentiated all stage NSCLC, stage I/II NSCLC patients or stage III/IV NSCLC patients from controls, and the combination of serum exosomal lncRNA SNHG15 and CEA showed an elevated AUC for distinguishing NSCLC from healthy individuals. In univariate and multivariate analyses, serum exosomal lncRNA SNHG15 was confirmed as an independent prognostic predictor for overall survival. CONCLUSION In conclusion, our findings suggest that serum exosomal lncRNA SNHG15 might be a potential biomarker for early diagnosis and prognosis prediction of NSCLC.
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Affiliation(s)
- Pengfei Han
- Department of Respiratory and Critical Care Medicine, Baoji People's Hospital, Baoji City, Shaanxi Province, China
| | - Jia Zhao
- Department of Respiratory and Critical Care Medicine, Baoji High-tech Hospital, Baoji City, Shaanxi Province, China
| | - Lun Gao
- Department of Respiratory and Critical Care Medicine, the First Hospital of Yulin City, Yulin City, Shaanxi Province, China
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21
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Yao J, Wang C, Dong X, Zhang Y, Li Y, Zhou H, Zhang L. lncRNA SNHG22 sponges miR‑128‑3p to promote the progression of colorectal cancer by upregulating E2F3. Int J Oncol 2021; 59:71. [PMID: 34368861 PMCID: PMC8357263 DOI: 10.3892/ijo.2021.5251] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 06/14/2021] [Indexed: 12/24/2022] Open
Abstract
The long non‑coding RNA (lncRNA) small nucleolar RNA host gene 22 (SNHG22) has been reported as a crucial regulator in several types of human cancer. The present study evaluated the function and mechanism of SNHG22 in colorectal cancer (CRC) progression. SNHG22 expression was detected in colorectal adenoma, CRC tumor tissues (TTs) and adjacent non‑cancerous tissues (ANTs) using reverse transcription‑quantitative PCR (RT‑qPCR). The biological behaviors of SNHG22 in CRC cell lines were explored in vitro using Cell Counting Kit‑8, flow cytometry, wound scratch assay and Transwell assay, and in vivo using a nude mouse xenograft model. The interaction between SNHG22 and microRNA‑128‑3p (miR‑128‑3p), and the target genes of miR‑128‑3p were explored using online tools, RT‑qPCR, western blotting and a dual‑luciferase reporter assay. The present study revealed that SNHG22 expression was most highly expressed in TTs followed by adenoma tissues and ANTs. In addition, high SNHG22 expression levels were significantly associated with advanced clinicopathological factors and worse survival in patients with CRC. SNHG22 knockdown markedly inhibited CRC cell proliferation, apoptosis resistance, migration and invasion in vitro, and hindered tumor growth in vivo. The mechanistic study revealed that SNHG22 bound to miR‑128‑3p and attenuated its inhibitory effects on E2F transcription factor 3 (E2F3) expression levels and activity. Rescue experiments demonstrated that inhibiting miR‑128‑3p or upregulating E2F3 offset the effects of SNHG22 knockdown on CRC cells. The present findings support the existence of an interactive regulatory network involving SNHG22, miR‑128‑3p and E2F3 in CRC cell lines, indicating that the SNHG22/miR‑128‑3p/E2F3 axis may be considered a novel diagnostic and therapeutic target in CRC.
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Affiliation(s)
- Jianning Yao
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Chunfeng Wang
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Xuyang Dong
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yanzhen Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Yanle Li
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Haining Zhou
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Lianfeng Zhang
- Department of Gastroenterology, The First Affiliated Hospital, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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22
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Vieira LM, Jorge NAN, de Sousa JB, Setubal JC, Stadler PF, Walter MEMT. Competing Endogenous RNA in Colorectal Cancer: An Analysis for Colon, Rectum, and Rectosigmoid Junction. Front Oncol 2021; 11:681579. [PMID: 34178670 PMCID: PMC8222815 DOI: 10.3389/fonc.2021.681579] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 04/22/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is a heterogeneous cancer. Its treatment depends on its anatomical site and distinguishes between colon, rectum, and rectosigmoid junction cancer. This study aimed to identify diagnostic and prognostic biomarkers using networks of CRC-associated transcripts that can be built based on competing endogenous RNAs (ceRNA). METHODS RNA expression and clinical information data of patients with colon, rectum, and rectosigmoid junction cancer were obtained from The Cancer Genome Atlas (TCGA). The RNA expression profiles were assessed through bioinformatics analysis, and a ceRNA was constructed for each CRC site. A functional enrichment analysis was performed to assess the functional roles of the ceRNA networks in the prognosis of colon, rectum, and rectosigmoid junction cancer. Finally, to verify the ceRNA impact on prognosis, an overall survival analysis was performed. RESULTS The study identified various CRC site-specific prognosis biomarkers: hsa-miR-1271-5p, NRG1, hsa-miR-130a-3p, SNHG16, and hsa-miR-495-3p in the colon; E2F8 in the rectum and DMD and hsa-miR-130b-3p in the rectosigmoid junction. We also identified different biological pathways that highlight differences in CRC behavior at different anatomical sites, thus reinforcing the importance of correctly identifying the tumor site. CONCLUSIONS Several potential prognostic markers for colon, rectum, and rectosigmoid junction cancer were found. CeRNA networks could provide better understanding of the differences between, and common factors in, prognosis of colon, rectum, and rectosigmoid junction cancer.
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Affiliation(s)
- Lucas Maciel Vieira
- Departamento de Ciência da Computação, Instituto de Ciência Exatas, University of Brasília, Brasília, Brazil
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, Leipzig, Germany
| | | | - João Batista de Sousa
- Division of Coloproctology, Department of Surgery, University of Brasília School of Medicine, Brasília, Brazil
| | - João Carlos Setubal
- Department of Biochemistry, Institute of Chemistry, University of São Paulo, São Paulo, Brazil
| | - Peter F. Stadler
- Bioinformatics Group, Department of Computer Science, and Interdisciplinary Center for Bioinformatics, Leipzig, Germany
- Max Planck Institute for Mathematics in the Science, Leipzig, Germany
- Institute for Theoretical Chemistry, University of Vienna, Wien, Austria
- Facultad de Ciencias, Universidad National de Colombia, Sede Bogotá, Colombia
- Santa Fe Institute, Santa Fe, CA, United States
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23
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Yi Q, Cui H, Liao Y, Xiong J, Ye X, Sun W. A minor review of microRNA-338 exploring the insights of its function in tumorigenesis. Biomed Pharmacother 2021; 139:111720. [PMID: 34243620 DOI: 10.1016/j.biopha.2021.111720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 12/29/2022] Open
Abstract
MicroRNAs(miRNAs) are small non-coding RNAs which have a critical role in various biological processes via direct binding and post-transcriptionally regulating targeted genes expression. More than one-half of human genes were regulated by miRNAs and their aberrant expression was detected in various human diseases, including cancers. miRNA-338 is a new identified miRNA and increasing evidence show that miRNA-338 participates in the progression of lots of cancers, such as lung cancer, hepatocellular cancer, breast cancer, glioma, and so on. Although a range of targets and signaling pathways such as MACC1 and Wnt/β-catenin signaling pathway were illustrated to be regulated by miRNA-338, which functions in tumor progression are still ambiguous and the underlying molecular mechanisms are also unclear. Herein, we reviewed the latest studies in miRNA-338 and summarized its roles in different type of human tumors, which might provide us new idea for further investigations and potential targeted therapy.
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Affiliation(s)
- Qian Yi
- Shenzhen Key Laboratory of Tissue Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong, China; Department of Physiology, School of Basic Medical Sciences, Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Hanwei Cui
- The Central Laboratory and Medical Genetics & Molecular Diagnostic Center, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong, China
| | - Yi Liao
- The Central Laboratory and Medical Genetics & Molecular Diagnostic Center, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong, China
| | - Jianyi Xiong
- Shenzhen Key Laboratory of Tissue Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong, China.
| | - Xiufeng Ye
- The Central Laboratory and Medical Genetics & Molecular Diagnostic Center, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong, China.
| | - Weichao Sun
- Shenzhen Key Laboratory of Tissue Engineering, Department of Orthopedics, Shenzhen Second People's Hospital (The First Affiliated Hospital of Shenzhen University), Shenzhen 518035, Guangdong, China.
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24
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Zhang HR, Wu SY, Fu ZX. LncRNA-cCSC1 promotes cell proliferation of colorectal cancer through sponging miR-124-3p and upregulating CD44. Biochem Biophys Res Commun 2021; 557:228-235. [PMID: 33887588 DOI: 10.1016/j.bbrc.2021.04.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Accepted: 04/06/2021] [Indexed: 01/03/2023]
Abstract
LncRNA-cCSC1 is highly expressed in colorectal cancer (CRC). The study was designed to evaluate the function and mechanism of lncRNA-cCSC1 in cell proliferation of CRC. RT-PCR was used to measure the expression levels of lncRNA-cCSC1 in CRC cell lines. CCK-8, colony formation, EdU staining, flow cytometry and Western blot were performed to examine the effect of interference with lncRNA-cCSC1 expression on cell proliferation. miR-124-3p and the target genes of miR-124-3p were investigated using bioinformatics analysis and verified by dual-luciferase reporter, RT-PCR and Western blot. Rescue experiments were carried out to confirm the role of miR-124-3p in cell proliferation of CRC. Our results showed that cell proliferation of CRC was promoted by lncRNA-cCSC1 upregulation and inhibited by lncRNA-cCSC1 downregulation. In addition, miR-124-3p is predicted to be the target of lncRNA-cCSC1 and is negatively correlated with lncRNA-cCSC1. Moreover, the addition of miR-124-3p mimics or inhibitor reversed the effects induced by lncRNA-cCSC1 overexpression or silencing on cell proliferation of CRC. Additionally, lncRNA-cCSC1 regulated the expression level of CD44, a target gene of miR-124-3p. Finally, we studied the effects of the lncRNA-cCSC1/miR-124-3p axis on CD44. These results indicate that lncRNA-cCSC1 promotes cell proliferation of CRC through sponging miR-124-3p and upregulating CD44.
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Affiliation(s)
- Hai-Rong Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
| | - Shi-Yong Wu
- Department of Vascular Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, 450052, China
| | - Zhong-Xue Fu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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25
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Moghbeli M. Molecular interactions of miR-338 during tumor progression and metastasis. Cell Mol Biol Lett 2021; 26:13. [PMID: 33827418 PMCID: PMC8028791 DOI: 10.1186/s11658-021-00257-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Accepted: 03/25/2021] [Indexed: 02/08/2023] Open
Abstract
Background Cancer, as one of the main causes of human deaths, is currently a significant global health challenge. Since the majority of cancer-related deaths are associated with late diagnosis, it is necessary to develop minimally invasive early detection markers to manage and reduce mortality rates. MicroRNAs (miRNAs), as highly conserved non-coding RNAs, target the specific mRNAs which are involved in regulation of various fundamental cellular processes such as cell proliferation, death, and signaling pathways. MiRNAs can also be regulated by long non-coding RNAs (lncRNAs) and circular RNAs (circRNAs). They are highly stable in body fluids and have tumor-specific expression profiles, which suggest their suitability as efficient non-invasive diagnostic and prognostic tumor markers. Aberrant expression of miR-338 has been widely reported in different cancers. It regulates cell proliferation, migration, angiogenesis, and apoptosis in tumor cells. Main body In the present review, we have summarized all miR-338 interactions with other non-coding RNAs (ncRNAs) and associated signaling pathways to clarify the role of miR-338 during tumor progression. Conclusions It was concluded that miR-338 mainly functions as a tumor suppressor in different cancers. There were also significant associations between miR-338 and other ncRNAs in tumor cells. Moreover, miR-338 has a pivotal role during tumor progression using the regulation of WNT, MAPK, and PI3K/AKT signaling pathways. This review highlights miR-338 as a pivotal ncRNA in biology of tumor cells.
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Affiliation(s)
- Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
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26
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Du J, Zhong H, Ma B. Targeting a novel LncRNA SNHG15/miR-451/c-Myc signaling cascade is effective to hamper the pathogenesis of breast cancer (BC) in vitro and in vivo. Cancer Cell Int 2021; 21:186. [PMID: 33952250 PMCID: PMC8097789 DOI: 10.1186/s12935-021-01885-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/16/2021] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND To our knowledge, LncRNA SNHG15 exerted its tumor-promoting effects to facilitate the development of breast cancer (BC), but there still needed more data to elucidate the potential underlying mechanisms. METHODS We examined genes expression status by performing Real-Time qPCR and Western Blot analysis, and cellular functions, including cell proliferation, viability, apoptosis, mobility, were measured by using the CCK-8 assay, colony formation assay, trypan blue staining assay, flow cytometer (FCM), transwell assay and wound scratch assay, respectively. The predicted targeting sites in LncRNA SNHG15, miR-451 and c-Myc 3'UTR were validated by dual-luciferase reporter gene system assay. Finally, we established the tumor-bearing mice models, and the expression status, including its enrichment and cellular localization were examined by immunohistochemistry (IHC) assay. RESULTS Our data indicated LncRNA SNHG15 upregulated c-Myc to facilitate BC progression by sponging miR-451 in a competing endogenous RNA (ceRNA)-dependent manner in vitro and in vivo. Specifically, LncRNA SNHG15 and c-Myc were upregulated, while miR-451 was downregulated in BC cells and clinical tissues, compared to their normal counterparts. In addition, miR-451 negatively correlated with LncRNA SNHG15 and c-Myc, and LncRNA SNHG15 was positively relevant to c-Myc in BC tissues. Next, we validated that LncRNA SNHG15 sponged miR-451 to upregulate c-Myc in BC cells. Further gain- and loss-of-function experiments evidenced that LncRNA SNHG15 promoted, while miR-451 inhibited malignant phenotypes, including cell proliferation, viability, migration, invasion and epithelial-mesenchymal transition (EMT) in BC cells. Interestingly, the inhibiting effects of LncRNA SNHG15 ablation on BC progression were abrogated by both silencing miR-451 and overexpressing c-Myc. CONCLUSIONS We concluded that targeting the LncRNA SNHG15/miR-451/c-Myc signaling cascade was novel to hamper BC progression, which broadened our knowledge in this field, and provided potential biomarkers for BC diagnosis and treatment.
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Affiliation(s)
- Jiang Du
- Department of Breast and Thyroid Surgery, The 3rd Affiliated Teaching Hospital of Xinjiang Medical University (Affiliated Cancer Hospital), Suzhou East Street No. 789, Xinshi District, Urumqi, 830011 Xinjiang China
| | - Hong Zhong
- Department of Breast and Thyroid Surgery, The 3rd Affiliated Teaching Hospital of Xinjiang Medical University (Affiliated Cancer Hospital), Suzhou East Street No. 789, Xinshi District, Urumqi, 830011 Xinjiang China
| | - Binlin Ma
- Department of Breast and Thyroid Surgery, The 3rd Affiliated Teaching Hospital of Xinjiang Medical University (Affiliated Cancer Hospital), Suzhou East Street No. 789, Xinshi District, Urumqi, 830011 Xinjiang China
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27
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Yang Y, Gong P, Yao D, Xue D, He X. LncRNA HCG18 Promotes Clear Cell Renal Cell Carcinoma Progression by Targeting miR-152-3p to Upregulate RAB14. Cancer Manag Res 2021; 13:2287-2294. [PMID: 33732021 PMCID: PMC7959199 DOI: 10.2147/cmar.s298649] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/31/2021] [Indexed: 12/20/2022] Open
Abstract
Background Long noncoding RNAs (lncRNAs) have been regarded as crucial regulators in many cancers, including clear cell renal cell carcinoma (ccRCC). This research aimed to explore the biological role and molecular mechanism of lncRNA HCG18 in ccRCC. Materials and Methods The expression levels of HCG18, miR-152-3p and RAB14 were examined by RT-qPCR. Cell viability, migration and invasion were examined by CCK-8 and transwell assays. Luciferase reporter and RIP assays were adopted to verify the interaction between miR-152-3p and HCG18 or RAB14. Results It was found that HCG18 expression was highly expressed in ccRCC tissues and cells, and patients with high expression of HCG18 had a short overall survival time. Moreover, HCG18 depletion attenuated ccRCC cell viability, migration and invasion. In addition, miR-152-3p was confirmed as a downstream target of HCG18 and was inversely regulated by HCG18, and RAB14 was a target of miR-152-3p. Functional assays demonstrated that miR-152-3p silencing or RAB14 addition abolished the inhibitory effects of HCG18 knockdown on ccRCC progression. Conclusion The results of the present study indicated that HCG18 accelerated the development and progression of ccRCC by upregulating RAB14 via sponging miR-152-3p, suggesting a potential therapeutic target for patients with ccRCC.
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Affiliation(s)
- Yu Yang
- Department of Hepatopancreatobiliary Surgery, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, People's Republic of China
| | - Pengfeng Gong
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, People's Republic of China
| | - Dongwei Yao
- Department of Urology, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu, People's Republic of China
| | - Dong Xue
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, People's Republic of China
| | - Xiaozhou He
- Department of Urology, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, People's Republic of China
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28
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Zhou M, Bian Z, Liu B, Zhang Y, Cao Y, Cui K, Sun S, Li J, Zhang J, Wang X, Li C, Yao S, Yin Y, Fei B, Huang Z. Long noncoding RNA MCM3AP-AS1 enhances cell proliferation and metastasis in colorectal cancer by regulating miR-193a-5p/SENP1. Cancer Med 2021; 10:2470-2481. [PMID: 33686713 PMCID: PMC7982620 DOI: 10.1002/cam4.3830] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 02/01/2021] [Accepted: 02/05/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Accumulating evidences have shown that long noncoding RNAs (lncRNAs) play key roles in many diseases, including cancer. Several studies reported that MCM3AP antisense RNA 1 (MCM3AP-AS1) was associated with the tumorigenesis and progression. However, the specific function and mechanism of MCM3AP-AS1 in colorectal cancer (CRC) have not been fully understood. METHODS The expression of MCM3AP-AS1 was detected by quantitative reverse transcription PCR (RT-qPCR) in CRC tissues and matched noncancerous tissues (NCTs). CCK-8 assay, colony formation assay, transwell assay, xenograft and lung metastasis mouse models were used to examine the tumor-promoting function of MCM3AP-AS1 in vitro and in vivo. The binding relationship between MCM3AP-AS1, miR-193a-5p and sentrin-specific peptidase 1 (SENP1) were screened and identified by databases, RT-qPCR, dual luciferase reporter assay and western blot. RESULTS In the present study, we got that the expression of MCM3AP-AS1 was higher in CRC tissues than in paired NCTs, and increased MCM3AP-AS1 expression was associated with adverse outcomes in CRC patients. Functional experiments in vitro revealed that silencing of MCM3AP-AS1 could inhibit the proliferation, colony formation, migratory, and invasive abilities of CRC cells. The mouse models of xenograft and lung metastasis further confirmed that in vivo silencing MCM3AP-AS1 could significantly inhibit the growth and metastasis of CRC. Further mechanism studies indicated that MCM3AP-AS1 could sponge miR-193a-5p and inhibit the activity of it. What is more, SENP1 was proved to be a novel target of miR-193a-5p and could be upregulated by MCM3AP-AS1. At last, we observed that SENP1 overexpression in CRC tissues was closely related to unfavorable prognosis. CONCLUSION Taken together, we identified in CRC the MCM3AP-AS1/miR-193a-5p/SENP1 regulatory axis, which affords a therapeutic possibility for CRC.
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Affiliation(s)
- Mingyue Zhou
- Department of Gastrointestinal Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Bingxin Liu
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Yi Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yulin Cao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Kaisa Cui
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Shengbai Sun
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Jiuming Li
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Jia Zhang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Xue Wang
- Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Chaoqun Li
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Surui Yao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Yuan Yin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Bojian Fei
- Department of Gastrointestinal Surgery, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Zhaohui Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
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Ashrafizadeh M, Shahinozzaman M, Orouei S, Zarrin V, Hushmandi K, Hashemi F, Kumar A, Samarghandian S, Najafi M, Zarrabi A. Crosstalk of long non-coding RNAs and EMT: Searching the missing pieces of an incomplete puzzle for lung cancer therapy. Curr Cancer Drug Targets 2021; 21:640-665. [PMID: 33535952 DOI: 10.2174/1568009621666210203110305] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 11/02/2020] [Accepted: 11/20/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Lung cancer is considered to be the first place among the cancer-related deaths worldwide and demands novel strategies in the treatment of this life-threatening disorder. The aim of this review is to explore regulation of epithelial-to-mesenchymal transition (EMT) by long non-coding RNAs (lncRNAs) in lung cancer. INTRODUCTION LncRNAs can be considered as potential factors for targeting in cancer therapy, since they regulate a bunch of biological processes, e.g. cell proliferation, differentiation and apoptosis. The abnormal expression of lncRNAs occurs in different cancer cells. On the other hand, epithelial-to-mesenchymal transition (EMT) is a critical mechanism participating in migration and metastasis of cancer cells. METHOD Different databases including Googlescholar, Pubmed and Sciencedirect were used for collecting articles using keywords such as "LncRNA", "EMT", and "Lung cancer". RESULT There are tumor-suppressing lncRNAs that can suppress EMT and metastasis of lung cancer cells. Expression of such lncRNAs undergoes down-regulation in lung cancer progression and restoring their expression is of importance in suppressing lung cancer migration. There are tumor-promoting lncRNAs triggering EMT in lung cancer and enhancing their migration. CONCLUSION LncRNAs are potential regulators of EMT in lung cancer, and targeting them, both pharmacologically and genetically, can be of importance in controlling migration of lung cancer cells.
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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
| | - Md Shahinozzaman
- Department of Nutrition and Food Science, University of Maryland, College Park, MD 20742. United States
| | - Sima Orouei
- Department of Genetics Science, Tehran Medical Sciences Branch, Islamic Azad University, Tehran. Iran
| | - Vahideh Zarrin
- Laboratory for Stem Cell Research, Shiraz University of Medical Sciences, Shiraz. Iran
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology & Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran. Iran
| | - Farid Hashemi
- Department of Comparative Biosciences, Faculty of Veterinary Medicine, University of Tehran, Tehran. Iran
| | - Anuj Kumar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541. Korea
| | - Saeed Samarghandian
- Noncommunicable Diseases Research Center, Neyshabur University of Medical Sciences, Neyshabur. Iran
| | - Masoud Najafi
- Medical Technology Research Center, Institute of Health Technology, Kermanashah University of Medical Sciences, Kermanshah 6715847141. Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956, Istanbul. Turkey
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The Identification and Verification of Key Long Noncoding RNAs in Ischemic Stroke. BIOMED RESEARCH INTERNATIONAL 2021; 2020:2094320. [PMID: 33490236 PMCID: PMC7789472 DOI: 10.1155/2020/2094320] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 11/30/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022]
Abstract
Stroke is a neurological disease with high rates of mortality and disability. The pathogenesis of stroke is acute focal injury of the central nervous system, leading to impaired neural function. Ischemic stroke accounts for the majority of cases. At present, the exact molecular mechanism of ischemic stroke remains unclear. Studies have shown that long noncoding RNAs (lncRNAs) have an important regulatory role in biological processes, participating in the regulation of transcription and affecting the processing and splicing of mRNAs. Abnormal lncRNA expression is associated with various diseases, including diseases of the nervous system. To identify and verify the key lncRNAs in ischemic stroke, we downloaded gene expression data from the National Center for Biotechnology Information Gene Expression Omnibus (NCBI GEO) and obtain differentially expressed lncRNAs, miRNAs, and mRNAs by bioinformatics analysis. Cytoscape was used to reconstruct a lncRNA-miRNA-mRNA network on the basis of the competitive endogenous RNA theory. We performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses of the mRNAs regulated by lncRNAs in the lncRNA-miRNA-mRNA network. The resulting lncRNA-miRNA-mRNA network was composed of 91 lncRNA nodes, 70 mRNA nodes, 21 miRNA nodes, and 288 edges. GO analysis and KEGG pathway analysis have shown that 191 GO terms and 23 KEGG pathways were enriched. Finally, we found that four key lncRNAs were highly correlated with ischemic stroke and could be used as potential new targets for treatment.
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The role of microRNA-338-3p in cancer: growth, invasion, chemoresistance, and mediators. Life Sci 2021; 268:119005. [PMID: 33421526 DOI: 10.1016/j.lfs.2020.119005] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/25/2020] [Accepted: 12/29/2020] [Indexed: 12/14/2022]
Abstract
Cancer still remains as one of the leading causes of death worldwide. Metastasis and proliferation are abnormally increased in cancer cells that subsequently, mediate resistance of cancer cells to different therapies such as radio-, chemo- and immune-therapy. MicroRNAs (miRNAs) are endogenous short non-coding RNAs that can regulate expression of target genes at post-transcriptional level and capable of interaction with mRNA-coding genes. Vital biological mechanisms including apoptosis, migration and differentiation are modulated by these small molecules. MiRNAs are key players in regulating cancer proliferation and metastasis as well as cancer therapy response. MiRNAs can function as both tumor-suppressing and tumor-promoting factors. In the present review, regulatory impact of miRNA-338-3p on cancer growth and migration is discussed. This new emerging miRNA can regulate response of cancer cells to chemotherapy and radiotherapy. It seems that miRNA-338-3p has dual role in cancer chemotherapy, acting as tumor-promoting or tumor-suppressor factor. Experiments reveal anti-tumor activity of miRNA-338-3p in cancer. Hence, increasing miRNA-338-3p expression is of importance in effective cancer therapy. Long non-coding RNAs, circular RNAs and hypoxia are potential upstream mediators of miRNA-338-3p in cancer. Anti-tumor agents including baicalin and arbutin can promote expression of miRNA-338-3p in suppressing cancer progression. These topics are discussed to shed some light on function of miRNA-338-3p in cancer cells.
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32
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Wang D, Li Z, Li H, Lu J, Qin Q. Long non-coding RNA SNHG20 promotes ovarian cancer development by targeting microRNA-338-3p to regulate MCL1 expression. Oncol Lett 2020; 21:130. [PMID: 33552251 PMCID: PMC7798103 DOI: 10.3892/ol.2020.12391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 11/04/2020] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNAs (lncRNAs) and microRNAs (miRNAs/miRs) were reported to be associated with the development of ovarian cancer (OC). Increasing evidence demonstrated that lncRNA SNHG20 and miR-338-3p were involved in OC. However, the functional mechanism of lncRNA SNHG20 and miR-338-3p in OC development remains unknown. The expression of SNHG20, miR-338-3p and myeloid cell leukemia 1 (MCL1) was detected by reverse transcription-quantitative PCR. MTT assay, flow cytometry and transwell migration and invasion assays were used to assess cell proliferation, apoptosis, migration and invasion, respectively. The relative protein expression was detected by western blot analysis. The interaction between miR-338-3p and SNHG20 or MCL1 was predicted by starBase v3.0, and subsequently confirmed by dual-luciferase reporter assay. Besides, mouse xenograft assay was carried out to explore the effect of SNHG20 on tumor growth in vivo. The levels of SNHG20 and MCL1 were upregulated, while miR-338-3p level was downregulated in OC tissues and cells. SNHG20 knockdown repressed OC cell proliferation, migration, invasion and epithelial-mesenchymal transition, and induced apoptosis. Interestingly, SNHG20 targeted miR-338-3p to regulate MCL1 expression. miR-338-3p depletion or MCL1 overexpression could reverse the effects of SNHG20 knockdown on OC cells. Besides, SNHG20 knockdown impeded tumor growth in vivo. In conclusion, the present study demonstrated that SNHG20 regulates OC development via modulation of the miR-338-3p/MCL1 axis, providing the theoretical basis for the treatment of OC.
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Affiliation(s)
- Ding Wang
- Department of Gynecology, The Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei 443001, P.R. China
| | - Zhiying Li
- Department of Gynecology, The Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei 443001, P.R. China
| | - Hui Li
- Department of Gynecology, The Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei 443001, P.R. China
| | - Jiao Lu
- Department of Gynecology, The Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei 443001, P.R. China
| | - Qi Qin
- Department of Gynecology, The Affiliated Renhe Hospital of China Three Gorges University, Yichang, Hubei 443001, P.R. China
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Wang CQ, Wang XM, Li BL, Zhang YM, Wang L. Arbutin suppresses osteosarcoma progression via miR-338-3p/MTHFD1L and inactivation of the AKT/mTOR pathway. FEBS Open Bio 2020; 11:289-299. [PMID: 33146000 PMCID: PMC7780106 DOI: 10.1002/2211-5463.13024] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/18/2020] [Accepted: 11/02/2020] [Indexed: 12/24/2022] Open
Abstract
Arbutin, a glycoside extracted from the plant Arctostaphylos uva‐ursi, has been previously reported to possess antioxidant, anti‐inflammatory and anticancer effects. Here, we investigated whether arbutin affects the proliferation of the cells of the osteosarcoma (OS) cell lines MG‐63 and SW1353. Arbutin suppressed OS cell viability in a dose‐ and time‐dependent manner, as shown by Cell Counting Kit‐8 assay. Furthermore, arbutin exposure decreased the protein levels of MTHFD1L, CCND1 and phosphorylated‐protein kinase B (AKT)/phosphorylated‐mammalian target of rapamycin (mTOR). Potential upstream miRNAs of MTHFD1L were predicted using TargetScan, PICTAR5, miRanda and miRWalk. We performed luciferase activity assays to show that miR‐338‐3p directly targets and negatively regulates the expression of MTHFD1L. Knockdown of miR‐338‐3p promoted cell invasion, migration and proliferation in arbutin‐treated OS cells via MTHFD1L. In summary, our data suggest that arbutin inhibits OS cell proliferation, migration and invasion via miR‐338‐3p/MTHFD1L and by inactivating the AKT/mTOR pathway.
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Affiliation(s)
- Cheng-Qun Wang
- Department of Joint Surgery, Affiliated Hospital of Jining Medical University, China
| | - Xiu-Mei Wang
- Electroencephalogram Room, Affiliated Hospital of Jining Medical University, China
| | - Bing-Liang Li
- Department of Joint Surgery, Affiliated Hospital of Jining Medical University, China
| | - Yuan-Min Zhang
- Department of Joint Surgery, Affiliated Hospital of Jining Medical University, China
| | - Lei Wang
- Department of Joint Surgery, Affiliated Hospital of Jining Medical University, China
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Chen C, Feng Y, Wang J, Liang Y, Zou W. Long non-coding RNA SNHG15 in various cancers: a meta and bioinformatic analysis. BMC Cancer 2020; 20:1156. [PMID: 33243205 PMCID: PMC7690101 DOI: 10.1186/s12885-020-07649-9] [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: 05/11/2020] [Accepted: 11/17/2020] [Indexed: 12/21/2022] Open
Abstract
Background The snoRNA host gene SNHG15 produces a long non-coding RNA (lncRNA) with a short half-life and has been reported to be dysregulated in multiple cancers and has recently been found to be correlated with tumour progression. Therefore, this meta-analysis was performed to evaluate the generalised prognostic role of small nucleolar RNA host gene 15 (SNHG15) in malignancies, based on variable data from different studies. Methods Four public databases were used to identify eligible studies. The association between prognostic indicators and clinical features was extracted and pooled to estimate the hazard ratios (HRs) or odds ratios (ORs) with 95% confidence intervals (CIs). Publication bias was measured using Begg’s test and Egger’s test, and the stability of pooled results were measured using sensitivity analysis. Additionally, an online database based on The Cancer Genome Atlas (TCGA) was screened to further validate our results. Ultimately, we predicted the molecular regulation of SNHG15 based on the public databases. Results In total, 11 studies including 1087 patients were ultimately enrolled in our meta-analysis. We found that SNHG15 overexpression was associated with worse overall survival (OS) and disease-free survival (DFS), and this was validated in the Gene Expression Profiling Interactive Analysis (GEPIA) cohort. Moreover, increased SNHG15 expression suggested advanced TNM stage and LNM, but was not associated with age, gender, or tumour size. No publication bias or instability of the results was observed. SNHG15 was significantly upregulated in seven cancers and elevated expression of SNHG15 indicated shorter OS and DFS in five malignancies based on the validation using the GEPIA cohort. Further functional prediction indicated that SNHG15 may participate in some cancer-related pathways. Conclusions Upregulation of lncRNA SNHG15 was notably associated with worse prognosis and clinical features, suggesting that SNHG15 might serve as a novel prognostic factor in various cancers.
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Affiliation(s)
- Caizhi Chen
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Yeqian Feng
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Jingjing Wang
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Ye Liang
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China
| | - Wen Zou
- Department of Oncology, The Second Xiangya Hospital of Central South University, Changsha, 410000, Hunan, China.
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Zhang H, Wang J, Ren T, Huang Y, Yu Y, Chen C, Huang Q, Guo W. LncRNA CASC15 is Upregulated in Osteosarcoma Plasma Exosomes and CASC15 Knockdown Inhibits Osteosarcoma Progression by Regulating miR-338-3p/RAB14 Axis. Onco Targets Ther 2020; 13:12055-12066. [PMID: 33262606 PMCID: PMC7700090 DOI: 10.2147/ott.s282053] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 11/05/2020] [Indexed: 12/16/2022] Open
Abstract
Background Currently, plenty of studies have demonstrated that lncRNAs can act as crucial roles during the progression of various tumors, including osteosarcoma (OS), and emerging evidences indicated that lncRNAs are abundant and stable in exosomes. The objective of this study is to reveal the dysregulated lncRNAs in OS plasma exosomes and explore their functions in OS. Materials and Methods Microarray was performed to analyze dysregulated exosomal lncRNAs. Western blot, qRT-PCR assays, and Dual-luciferase reporter assay were used to verify the interaction among cancer susceptibility 15 (CASC15), miR-338-3p, and RAB14. Cck-8, colony formation assay, and transwell assay were performed to explore and characterize the effects of CASC15 on OS cells. Animal experiments were used to verify the effects of CASC15 in vivo. Results Upregulated CASC15 was observed in OS plasma exosomes compared with control, and the same expression was observed in the OS tissues and cell lines. Further assays indicated that CASC15 knockdown could restrain the proliferation, migration, and invasion of OS cells, and inhibit the growth of OS in xenograft models. Furthermore, our results demonstrated CASC15 regulated OS progression via acting as miR-338-3p sponge, and RAB14 was a direct downstream target of miR-338-3p. Rescue experiments verified CASC15 promotes OS cell growth and metastasis by upregulating RAB14 expression. Conclusion Overall, our findings indicate that CASC15 plays a key role in OS progression by targeting the miR-338-3p/RAB14 axis and can serve as a possible therapeutic target for OS patients.
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Affiliation(s)
- Hongliang Zhang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Jun Wang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Tingting Ren
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Yi Huang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Yiyang Yu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Chenglong Chen
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Qingshan Huang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
| | - Wei Guo
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China.,Beijing Key Laboratory of Musculoskeletal Tumor, Beijing, People's Republic of China
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Wen Y, Zhang X, Liu X, Huo Y, Gao Y, Yang Y. Suppression of lncRNA SNHG15 protects against cerebral ischemia-reperfusion injury by targeting miR-183-5p/FOXO1 axis. Am J Transl Res 2020; 12:6250-6263. [PMID: 33194027 PMCID: PMC7653613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 08/22/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Cerebral ischemia/reperfusion (I/R) injury is a severe complication during the treatment of patients with stroke. It has been shown that the expression of SNHG15 was increased in patients with ischemic stroke (IS). However, the function and regulatory mechanism of SNHG15 in IS remains unclear. METHODS An oxygen glucose deprivation/reoxygenation (OGD/R) cell model was use to establish an in vitro model of I/R injury. RT-qPCR assay was used to detect the level of SNHG15 in OGD/R-treated SH-SY5Y cells. Meanwhile, middle cerebral artery occlusion (MCAO) was used to establish an in vivo model of cerebral I/R injury. RESULTS The expression of SNHG15 was upregulated in OGD/R-treated SH-SY5Y cells. Downregulation of SNHG15 during reperfusion reduced cell death in OGD/R-treated SH-SY5Y cells. In addition, SNHG15 knockdown suppressed OGD/R-induced apoptosis in SY-SY5Y cells by attenuating intracellular ROS generation and reducing mitochondrial membrane potential (MMP) lost. In addition, SNHG15 knockdown promoted cell cycle transition in SY-SY5Y cells after OGD/R insult accompany with PI3K/Akt signaling activation. Meanwhile, mechanism investigations suggested SNHG15 knockdown downregulated the expression of FOXO1 through acting as a competitive 'sponge' of miR-183-5p. Most importantly, knockdown of SNHG15 expression in vivo inhibited neuronal apoptosis and decreased infarct area in MCAO rats. CONCLUSION Thus, the present study indicated that SNHG15 knockdown protected against cerebral I/R injury via targeting miR-183-5p/FOXO1 axis, which may represent a potential therapeutic option for the treatment of cerebral IS.
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Affiliation(s)
- Ya Wen
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of NeurologyShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of Vascular HomeostasisShijiazhuang 050000, Hebei, P. R. China
| | - Xiangjian Zhang
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of NeurologyShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of Vascular HomeostasisShijiazhuang 050000, Hebei, P. R. China
| | - Xiaoyun Liu
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of NeurologyShijiazhuang 050000, Hebei, P. R. China
| | - Yinghao Huo
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of NeurologyShijiazhuang 050000, Hebei, P. R. China
| | - Yuxiao Gao
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of NeurologyShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of Vascular HomeostasisShijiazhuang 050000, Hebei, P. R. China
| | - Yi Yang
- Department of Neurology, The Second Hospital of Hebei Medical UniversityShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of NeurologyShijiazhuang 050000, Hebei, P. R. China
- Hebei Key Laboratory of Vascular HomeostasisShijiazhuang 050000, Hebei, P. R. China
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He J, Wang J, Li S, Li T, Chen K, Zhang S. Hypoxia-inhibited miR-338-3p suppresses breast cancer progression by directly targeting ZEB2. Cancer Sci 2020; 111:3550-3563. [PMID: 32726486 PMCID: PMC7540984 DOI: 10.1111/cas.14589] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Revised: 06/11/2020] [Accepted: 07/13/2020] [Indexed: 02/07/2023] Open
Abstract
Hypoxia plays an essential role in the development of various cancers. The biological function and underlying mechanism of microRNA-338-3p (miR-338-3p) under hypoxia remain unclarified in breast cancer (BC). Herein, we performed bioinformatics, gain and loss of function of miR-338-3p, a luciferase reporter assay, and chromatin immunoprecipitation (ChIP) in vitro and in a tumor xenograft model. We also explored the potential signaling pathways of miR-338-3p in BC. We detected the expression levels and prognostic significance of miR-338-3p in BC by qRT-PCR and in situ hybridization. MiR-338-3p was lowly expressed in BC tissues and cell lines, and BC patients with underexpression of miR-338-3p tend to have a dismal overall survival. Functional experiments showed that miR-338-3p overexpression inhibited BC cell proliferation, invasion, migration, and epithelial-mesenchymal transition (EMT) process, whereas miR-338-3p silencing abolished these biological behaviors. Zinc finger E-box-binding homeobox 2 (ZEB2) was validated as a direct target of miR-338-3p. ZEB2 overexpression promoted while ZEB2 knockdown abolished the promoted effects of miR-338-3p knockdown on cell biological behaviors through the NF-ĸB and PI3K/Akt signal pathways. HIF1A can transcriptionally downregulate miR-338-3p under hypoxia. In total, miR-338-3p counteracts hypoxia-induced BC cells growth, migration, invasion, and EMT via the ZEB2 and NF-ĸB/PI3K signal pathways, implicating miR-338-3p may be a promising target to treat patients with BC.
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Affiliation(s)
- Juanjuan He
- Department of Breast Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Jing Wang
- Department of Breast Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Songchao Li
- Department of Urology Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Teng Li
- Department of Urology Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Kunlun Chen
- Department of Hepatobiliary and Pancreatic Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
| | - Shaojin Zhang
- Department of Urology Surgerythe First Affiliated HospitalZhengzhou UniversityZhengzhouChina
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Wu X, Li XF, Wu Q, Ma RQ, Qian J, Zhang R. LncRNA SNHG15 predicts poor prognosis in uveal melanoma and its potential pathways. Int J Ophthalmol 2020; 13:1195-1201. [PMID: 32821672 PMCID: PMC7387894 DOI: 10.18240/ijo.2020.08.04] [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] [Received: 03/28/2020] [Accepted: 04/29/2020] [Indexed: 02/05/2023] Open
Abstract
AIM To evaluate the role of long noncoding RNA (lncRNA) SNHG15 and its potential pathways in uveal melanoma (UM). METHODS The SNHG15 mRNA expression level and corresponding clinicopathological characteristics of 80 patients with UM were obtained from the Cancer Genome Atlas (TCGA) database and further analyzed. The SPSS 24.0 statistical software package was used for statistical analyses. To investigate the potential function of SNHG15 in UM, we conducted in-depth research on Gene Set Enrichment Analysis (GSEA). RESULTS The univariate analysis revealed that the age, tumor diameter, pathological type, extrascleral extension, cancer status, and high expression of SNHG15 were statistical risk factors for death from all causes. The multivariate analysis suggested that the mRNA expression level of SNHG15 was an independent risk factor for death from all causes, as was age and pathological type. Kaplan-Meier survival analysis confirmed that UM patients with high SNHG15 expression might have a poor prognosis. In addition, SNHG15 was significantly differentially expressed in the different groups of tumor pathologic stage, metastasis and living status. Besides, the logistic regression analysis indicated that high SNHG15 expression group in UM was significantly associated with cancer status, pathologic stage, metastasis, and living status. Moreover, the GSEA indicated the potential pathways regulated by SNHG15 in UM. CONCLUSION Our research suggests that SNHG15 may play a vital role as a potential marker in UM that predicts poor prognosis. Besides, GSEA indicates the underlying signaling pathways enriched differentially in SNHG15 high expression phenotype.
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Affiliation(s)
- Xue Wu
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai 200031, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - Xiao-Feng Li
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai 200031, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - Qian Wu
- Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, Sichuan Province, China
| | - Rui-Qi Ma
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai 200031, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - Jiang Qian
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai 200031, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
| | - Rui Zhang
- Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Shanghai 200031, China
- NHC Key Laboratory of Myopia, Fudan University, Shanghai 200031, China
- Laboratory of Myopia, Chinese Academy of Medical Sciences, Shanghai 200031, China
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Comprehensive ceRNA network analysis and experimental studies identify an IGF2-AS/miR-150/IGF2 regulatory axis in colorectal cancer. Pathol Res Pract 2020; 216:153104. [PMID: 32853944 DOI: 10.1016/j.prp.2020.153104] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 01/26/2023]
Abstract
Recently, a growing body of studies has demonstrated that long non-coding RNA (lncRNA) can act as microRNA (miRNA) sponges to regulate protein-coding gene expression and play essential roles in tumor initiation and progression. In the present study, we constructed a competitive endogenous RNA (ceRNA) network and identified potential regulatory axes in colorectal cancer (CRC) through both bioinformation and experimental validation. Firstly, we obtained differentially expressed (DE) lncRNAs, miRNAs, and mRNAs by analyzing the RNA expression profiles of CRC retrieved from The Cancer Genome Atlas (TCGA) database and CRC patients' data from affiliated Hospital of Jiangnan University, respectively. Then, we established a ceRNA regulatory network of CRC that includes 23 lncRNAs, 7 miRNAs and 244 mRNAs. To further identify these lncRNA-miRNA-mRNA regulatory axes which might play vital roles in CRC tumorigenesis and prognosis, we performed additional analyses using comprehensive bioinformatic methods. Several ceRNA regulatory axes, which consist of 2 lncRNAs, 2 miRNAs and 5 mRNAs, were obtained from the network. Finally, the interactions and correlations among these ceRNA networks were validated by experiments on CRC cell lines and clinical tumor tissues, and a potential IGF2-AS/miR-150/IGF2 axis that perfectly conform to the ceRNA theory was determined. According to the qRT-PCR results, miR-150 overexpression remarkably decreased IGF2-AS and IGF2 expression. Meanwhile, IGF2-AS expression was positively correlated with IGF2 expression in tumor tissue of CRC patients. Besides, dual luciferase reporter assays indicated that miR-150 could bound to IGF2-AS and the 3'UTR of and IGF2. In general, the constructed novel IGF2-AS/miR-150/IGF2 network might provide potential mechanisms of CRC development, and could act as a promising target for CRC treatment.
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Chen Y, Guo H, Li L, Bao D, Gao F, Li Q, Huang Q, Duan X, Xiang Z. Long Non-Coding RNA (lncRNA) Small Nucleolar RNA Host Gene 15 (SNHG15) Alleviates Osteoarthritis Progression by Regulation of Extracellular Matrix Homeostasis. Med Sci Monit 2020; 26:e923868. [PMID: 32643707 PMCID: PMC7370589 DOI: 10.12659/msm.923868] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Growing evidence suggests that long non-coding RNAs (lncRNAs), as decoys of microRNAs (miRNAs), are involved in osteoarthritis (OA) progression, but the potential mechanism of lncRNA SNHG15 in OA remains unknown. Thus, the present study explored the molecular mechanism of SNHG15 in OA progression. MATERIAL AND METHODS OA chondrocytes were created by 20 ng/ml IL-1ß stimulation, and the experimental OA model was created by destabilization of the medial meniscus (DMM) surgery. Cartilage histomorphology was observed by safranin and fast green double dyeing. The relationships between SNHG15 and miR-7, KLF4, and miR-7 were determined by dual-luciferase assay or RNA immunoprecipitation (RIP). Immunofluorescence was used to detect the expressions of Ki67, collagen II, and Aggrecan. Moreover, SNHG15, miR-7, KLF4, MMP3, ADAMTS5, COL2A1, Aggrecan, and ß-catenin expressions were assessed by qRT-PCR or Western blot. The methylation status of SNHG15 promoter was evaluated by MS-PCR. RESULTS Underexpression of KLF4 and SHNG15 and overexpression of miR-7 were found in human OA knee cartilage tissues and IL-1ß-stimulated OA chondrocytes. SHNG15 overexpression significantly inhibited ECM degradation and promoted chondrocyte formation of OA chondrocytes. Furthermore, SNHG15 regulated KLF4 expression by sponging miR-7. Further analysis found that SNHG15 significantly inhibited b-catenin in OA chondrocytes. SNHG15 had a higher level of methylation in human OA tissues than in normal cartilage tissues. CONCLUSIONS Our results revealed that SNHG15 alleviated OA progression by regulating ECM homeostasis, which provides a promising target for OA therapy.
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Affiliation(s)
- Yunping Chen
- Department of Clinical Laboratory Medicine, Linyi Central Hospital, Linyi, Shandong, China (mainland)
| | - Hongna Guo
- Department of Clinical Laboratory Medicine, Linyi Central Hospital, Linyi, Shandong, China (mainland)
| | - Lang Li
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, Sichuan, China (mainland)
| | - Dingsu Bao
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China (mainland).,Department of Orthopedics, Hospital of Traditional Chinese Medicine Affiliated to Southwest Medical University, Luzhou, Sichuan, China (mainland)
| | - Feng Gao
- Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, Sichuan, China (mainland)
| | - Qiang Li
- Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, Sichuan, China (mainland)
| | - Qi Huang
- Department of Orthopedics, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu, Sichuan, China (mainland)
| | - Xin Duan
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China (mainland)
| | - Zhou Xiang
- Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, Sichuan, China (mainland)
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Zimta AA, Tigu AB, Braicu C, Stefan C, Ionescu C, Berindan-Neagoe I. An Emerging Class of Long Non-coding RNA With Oncogenic Role Arises From the snoRNA Host Genes. Front Oncol 2020; 10:389. [PMID: 32318335 PMCID: PMC7154078 DOI: 10.3389/fonc.2020.00389] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 03/04/2020] [Indexed: 12/24/2022] Open
Abstract
The small nucleolar RNA host genes (SNHGs) are a group of long non-coding RNAs, which are reported in many studies as being overexpressed in various cancers. With very few exceptions, the SNHGs (SNHG1, SNHG3, SNHG5, SNHG6, SNHG7, SNHG12, SNHG15, SNHG16, SNHG20) are recognized as inducing increased proliferation, cell cycle progression, invasion, and metastasis of cancer cells, which makes this class of transcripts a viable biomarker for cancer development and aggressiveness. Through our literature research, we also found that silencing of SNHGs through small interfering RNAs or short hairpin RNAs is very effective in both in vitro and in vivo experiments by lowering the aggressiveness of solid cancers. The knockdown of SNHG as a new cancer therapeutic option should be investigated more in the future.
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Affiliation(s)
- Alina-Andreea Zimta
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Adrian Bogdan Tigu
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Cornelia Braicu
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Cristina Stefan
- African Organisation for Research and Training in Cancer, Cape Town, South Africa
| | - Calin Ionescu
- Surgical Department, Municipal Hospital, Cluj-Napoca, Romania
- Department of Surgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- Medfuture Research Center for Advanced Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
- Department of Functional Genomics and Experimental Pathology, The Oncology Institute “Prof. Dr. I. Chiricuta”, Cluj-Napoca, Romania
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Li S, Niu X, Li H, Liang Y, Sun Z, Yan Y. Circ_0000003 promotes the proliferation and metastasis of non-small cell lung cancer cells via miR-338-3p/insulin receptor substrate 2. Cell Cycle 2019; 18:3525-3539. [PMID: 31736412 PMCID: PMC6927718 DOI: 10.1080/15384101.2019.1690883] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 09/21/2019] [Accepted: 09/23/2019] [Indexed: 12/11/2022] Open
Abstract
Background: Circular RNAs (circRNAs) play a pivotal regulatory role in a variety of tumors.Nevertheless, the detailed function of circ_0000003 in non-small cell lung cancer (NSCLC) and its regulatory mechanism remain elusive.Methods: RT-PCR was carried out to detect the expressions of circ_0000003, miR-338-3p and insulin receptor substrate 2 (IRS2)in NSCLC tissues. Besides, western blot was done to monitor IRS2 expression in NSCLC cells. The correlation between circ_0000003 and clinicopathologic characteristics of NSCLC patients was analyzed as well.CCK8 and BrdUassays were used to monitor cell proliferation; flow cytometry was used to detect apoptosis; and transwell assay was conducted to detect its migration and invasion.Moreover, dual luciferase reporter gene assay was done to verify the targeting relationship between circ_0000003 and miR-338-3p.Additionally, the effect of circ_0000003 on the growth of NSCLC cells in vivo was evaluated by tumorigenesis assay in nude mice.Results: The expression of circ_0000003 was significantly high in NSCLC tissues and cell lines, and its high expression level was notably correlated with lymph node metastasis andTNM staging.In vitro experiments showed that overexpression of circ_0000003 facilitated the proliferation, migration, invasion and inhibited the apoptosis of NSCLC cells, while the knockdown of circ_0000003 had the opposite effect.In vivo experiments revealed that knockdown of circ_0000003 impeded tumor growth and metastasis. Further, the underlying mechanism showed that circ_0000003 functioned as endogenous competitive RNA and directly targeted miR-338-3p to positively regulated IRS2 expression.Conclusion: Circ_0000003 promotes the proliferation and metastasis of NSCLC cells via modulating miR-338-3p/IRS2 axis.
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Affiliation(s)
- Shaobin Li
- Department of Cardiothoracic Surgery, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoge Niu
- Department of Oncology, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Hui Li
- Department of Cardiothoracic Surgery, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Yanan Liang
- Department of Cardiothoracic Surgery, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Zhengyang Sun
- Department of Cardiothoracic Surgery, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
| | - Yusheng Yan
- Department of Cardiothoracic Surgery, ZhuJiang Hospital of Southern Medical University, Guangzhou, Guangdong, China
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Shuai Y, Ma Z, Lu J, Feng J. LncRNA SNHG15: A new budding star in human cancers. Cell Prolif 2019; 53:e12716. [PMID: 31774607 PMCID: PMC6985667 DOI: 10.1111/cpr.12716] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 09/16/2019] [Accepted: 10/07/2019] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Long non-coding RNAs (lncRNAs) represent an important group of non-coding RNAs (ncRNAs) with more than 200 nucleotides in length that are transcribed from the so-called genomic "dark matter." Mounting evidence has shown that lncRNAs have manifested a paramount function in the pathophysiology of human diseases, especially in the pathogenesis and progression of cancers. Despite the exponential growth in lncRNA publications, our understanding of regulatory mechanism of lncRNAs is still limited, and a lot of controversies remain in the current lncRNA knowledge.The purpose of this article is to explore the clinical significance and molecular mechanism of SNHG15 in tumors. MATERIALS & METHODS We have systematically searched the Pubmed, Web of Science, Embase and Cochrane databases. We provide an overview of current evidence concerning the functional role, mechanistic models and clinical utilities of SNHG15 in human cancers in this review. RESULTS Small nucleolar RNA host gene 15 (SNHG15), a novel lncRNA, is identified as a key regulator in tumorigenesis and progression of various human cancers, including colorectal cancer (CRC), gastric cancer (GC), pancreatic cancer (PC) and hepatocellular carcinoma (HCC). Dysregulation of SNHG15 has been revealed to be dramatically correlated with advanced clinicopathological factors and predicts poor prognosis, suggesting its potential clinical value as a promising biomarker and therapeutic target for cancer patients. CONCLUSIONS LncRNA SNHG15 may serve as a prospective and novel biomarker for molecular diagnosis and therapeutics in patients with cancer.
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Affiliation(s)
- You Shuai
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Zhonghua Ma
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Division of Gastrointestinal Cancer Translational Research Laboratory, Peking University Cancer Hospital and Institute, Beijing, China.,Department of Gastrointestinal Surgery, Peking University Cancer Hospital and Institute, Beijing, China
| | - Jianwei Lu
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Jifeng Feng
- Department of Medical Oncology, Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
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Liu Y, Liu B, Jin G, Zhang J, Wang X, Feng Y, Bian Z, Fei B, Yin Y, Huang Z. An Integrated Three-Long Non-coding RNA Signature Predicts Prognosis in Colorectal Cancer Patients. Front Oncol 2019; 9:1269. [PMID: 31824849 PMCID: PMC6883412 DOI: 10.3389/fonc.2019.01269] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 11/04/2019] [Indexed: 01/25/2023] Open
Abstract
Colorectal cancer (CRC) is one of the most common cancers worldwide, whose morbidity and mortality gradually increased. Here, we aimed to identify and access prognostic long non-coding RNAs (lncRNAs) associated with overall survival (OS) in CRC. Firstly, RNA expression profiles were obtained from The Cancer Genome Atlas (TCGA) database, and 439 CRC patients were enrolled as a training set. Univariate Cox analysis and the least absolute shrinkage and selection operator analysis (LASSO) were performed to identify the prognostic lncRNAs. Multivariable Cox regression analysis was used to establish a prognostic risk formula including three lncRNAs (AP003555.2, AP006284.1, and LINC01602). The low-risk group had a better OS than the high-risk group (P < 0.0001), and the areas under the receiver operating characteristic curve (AUCs) of 3- and 5-year OS were 0.712 and 0.674, respectively. Then, we evaluated the signature in a clinical validation set which were collected from the Affiliated Hospital of Jiangnan University. Compared with the low-risk group, patients' OS were found to be significantly worse in the high-risk group (P = 0.0057). The AUCs of 3- and 5-year OS were 0.701 and 0.694, respectively. Finally, we constructed an lncRNA–microRNA (miRNA)–messenger RNA (mRNA) competing endogenous RNA (ceRNA) network to explore the potential function of three differentially expressed lncRNAs (DElncRNAs). The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis indicated that these DElncRNAs were involved with several cancer-related pathways. In summary, our data provide evidence that the three-lncRNA signature could serve as an independent biomarker to predict prognosis in CRC. This study will also suggest that these three lncRNAs potentially participate in the progression of CRC.
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Affiliation(s)
- Yuhang Liu
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Bingxin Liu
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Guoying Jin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Jia Zhang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xue Wang
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yuyang Feng
- Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Bojian Fei
- Department of Surgical Oncology, Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Yuan Yin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Zhaohui Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, China.,Laboratory of Cancer Epigenetics, Wuxi School of Medicine, Jiangnan University, Wuxi, China
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Dai W, Dai JL, Tang MH, Ye MS, Fang S. lncRNA-SNHG15 accelerates the development of hepatocellular carcinoma by targeting miR-490-3p/ histone deacetylase 2 axis. World J Gastroenterol 2019; 25:5789-5799. [PMID: 31636472 PMCID: PMC6801192 DOI: 10.3748/wjg.v25.i38.5789] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/30/2019] [Accepted: 09/13/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) has become a great threat for people’s health. Many long noncoding RNAs are involved in the pathogenesis of HCC. SNHG15, as a tissue specific long noncoding RNAs, has been studied in many human cancers, except HCC.
AIM To explore the regulatory mechanism of SNHG15 in HCC.
METHODS In the present research, 101 HCC patient samples, two HCC cell lines and one normal liver cell line were used. RT-qPCR and Western blot analysis were applied to detect SNHG15, miR-490-3p and histone deacetylase 2 (HDAC2) expression. The regulatory mechanism of SNHG15 was investigated using CCK-8, Transwell and luciferase reporter assays.
RESULTS Our research showed that up-regulation of SNHG15 was found in HCC and was related to aggressive behaviors in HCC patients. Moreover, knockdown of SNHG15 restrained HCC cell proliferation, migration and invasion. In addition, SNHG15 served as a molecular sponge for miR-490-3p. Further, miR-490-3p directly targets HDAC2. HDAC2 was involved in HCC progression by interacting with the SNHG15/miR-490-3p axis.
CONCLUSION In conclusion, long noncoding RNA SNHG15 promotes HCC progression by mediating the miR-490-3p/HDAC2 axis in HCC.
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Affiliation(s)
- Wei Dai
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Jia-Liang Dai
- Department of Hepatobiliary Surgery, the Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Mao-Hua Tang
- Department of Infectious Disease, the Second Affiliated Hospital of Guangdong Medical University, Zhanjiang 524003, Guangdong Province, China
| | - Mu-Shi Ye
- Department of Surgery, the Affiliated Hospital of Guangdong Medical University, Zhanjiang 524001, Guangdong Province, China
| | - Shuo Fang
- The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, Guangdong Province, China
- Li KaShing Faculty of Medicine, the University of Hong Kong, Hong Kong, China
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Zhang Y, Zheng L, Lao X, Wen M, Qian Z, Liu X, Tang H, Gao F. Hes1 is associated with long non-coding RNAs in colorectal cancer. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:459. [PMID: 31700895 DOI: 10.21037/atm.2019.08.11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Long noncoding RNAs (lncRNAs) play important roles in the development and pathophysiology of colorectal cancer (CRC). Our previous study showed that Hes1 was involved in the self-renewal and tumorigenicity of stem-like cancer cells in CRC. Methods ArrayStar Human LncRNA/mRNA Expression Microarray Version 3.0 was used to detect lncRNA expression in CRC tissues compared with their matched non-tumoral tissues. RNA-binding protein immunoprecipitation and sequencing (RIP-seq) assay was used to detect lncRNAs binding to Hes1. Real-time qPCR was used to detect expression of specific lncRNAs in CRC tissues. Results We found significantly up-regulated as well as down-regulated lncRNAs in CRC tissues compared with their matched non-tumoral tissues. We also screened a number of lncRNAs interacting with Hes1 in CRC cells. Interestingly, we found several lncRNAs binding to Hes1 (such as, GNAS-AS1, RP11-89K10.1, and RP11-465L10.10) were up-regulated in CRC tissues showed by the tissue microarray. Next, we confirmed that Hes1 directly interacted with these lncRNAs using RIP-qPCR and RNA pulldown assay. Finally, we verified the expression of these lncRNAs in 32 CRC samples as well as the adjacent non-tumoral tissues using real-time qPCR. Conclusions Based on these, we speculate that Hes1 interacts with one or more lncRNAs which contribute to the development and progression of CRC.
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Affiliation(s)
- Yuqin Zhang
- Laboratory of Digestive Disease and Oncology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China.,Department of Oncology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China.,Department of Oncology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lin Zheng
- Department of Pathology, Nanfang Hospital and School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xuejun Lao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Mingbo Wen
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Zhipeng Qian
- Laboratory of Digestive Disease and Oncology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Xin Liu
- Laboratory of Digestive Disease and Oncology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Hui Tang
- Central Laboratory, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - Fei Gao
- Laboratory of Digestive Disease and Oncology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China.,Department of Gastroenterology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, China.,Department of Physiology and Biomedical Engineering and Gastroenterology Research Unit, Enteric Neuroscience Program, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
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Zhang L, Ding F. Hsa_circ_0008945 promoted breast cancer progression by targeting miR-338-3p. Onco Targets Ther 2019; 12:6577-6589. [PMID: 31496747 PMCID: PMC6701654 DOI: 10.2147/ott.s213994] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 07/22/2019] [Indexed: 12/12/2022] Open
Abstract
PURPOSE To detect the expression and function of circ_0008945 in breast cancer (BC) and to explore its potential molecular mechanisms in BC tumorigenesis. MATERIALS AND METHODS We measured expression levels of circ_0008945, miR-338-3p and homeobox A3 (HOXA3) in BC tissue specimens and cells using quantitative reverse transcriptase polymerase chain reaction (qRT-PCR). We examined the effects of all three genes on BC cell proliferation using Cell Counting Kit-8 (CCK-8) and colony formation assays. We also performed a Transwell assay to assess the migratory and invasive ability of treated BC cells. BC cell apoptosis was assessed using flow cytometric (FCM) analysis; interaction between miR-338-3p and circ_0008945 or HOXA3 was verified by dual-luciferase reporter assay as well as by ribonucleic-acid (RNA) pulldown. Finally, we used an in vivo tumor growth assay to assess the role of circ_0008945 overexpression in BC tumor growth. RESULTS We found that circ_0008945 expression was significantly increased in both BC tissue specimens and cells. This increase was correlated with poor prognosis in BC patients. Knockdown of circ_0008945 inhibited BC cell proliferation, migration and invasion while promoting BC cell apoptosis in vitro. Overexpression of circ_0008945 remarkably promoted BC tumor growth in vivo. Mechanistically, circ_0008945 acted as a miRNA sponge for miR-338-3p and inhibited its expression in BC cells. Moreover, miR-338-3p targeted and inhibited HOXA3. CONCLUSION We found that circ_0008945 acted as a BC oncogene by physically binding miR-338-3p, which further targeted and regulated HOXA3.
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Affiliation(s)
- Li Zhang
- Department of Pathology, People’s Hospital of Xinchang County, Xinchang Affiliated Hospital of Wenzhou Medical University, Xinchang, Zhejiang, People’s Republic of China
| | - Fengping Ding
- Department of Pathology, People’s Hospital of Xinchang County, Xinchang Affiliated Hospital of Wenzhou Medical University, Xinchang, Zhejiang, People’s Republic of China
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Li M, Bian Z, Jin G, Zhang J, Yao S, Feng Y, Wang X, Yin Y, Fei B, You Q, Huang Z. LncRNA-SNHG15 enhances cell proliferation in colorectal cancer by inhibiting miR-338-3p. Cancer Med 2019; 8:2404-2413. [PMID: 30945457 PMCID: PMC6536931 DOI: 10.1002/cam4.2105] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/29/2019] [Accepted: 03/06/2019] [Indexed: 12/23/2022] Open
Abstract
The incidence and death rate of colorectal cancer (CRC) is very high, which brings great need to understand the early molecular events of CRC. These studies demonstrate that long noncoding RNA (lncRNA) plays an important role in the occurrence and development of human cancer. Small nucleolar RNA host gene 15 (SNHG15) was recently identified as a cancer‐related lncRNA. In this study, we aimed to evaluate the function and mechanism of SNHG15 in CRC. The expression of SNHG15 was detected by quantitative RT‐PCR (qRT‐PCR) in CRC tissues and matched noncancerous tissues (NCTs). CCK‐8 assay, colony formation assay, flow cytometric analysis, and nude mouse xenograft mode were used to examine the tumor‐promoting function of SNHG15 in vitro and in vivo. The binding relationship between SNHG15, miR‐338‐3p and the target genes of miR‐338‐3p were screened and identified by databases, qRT‐PCR, dual luciferase reporter assay and western blot. Our results showed that SNHG15 was up‐regulated in CRC tissues compared with paired NCTs (P < 0.0001). High level of SNHG15 expression predicted poor prognosis of CRC (P = 0.0051). SNHG15 overexpression could promote cell proliferation and inhibit cell apoptosis. Animal experiments showed that up‐regulation of SNHG15 promoted tumor growth in vivo. The results of mechanism experiments showed that SNHG15 could bind to miR‐338‐3p and block its inhibition on the expression and activity of FOS or RAB14. In conclusion SNHG15 promotes cell proliferation through SNHG15/miR‐338‐3p/FOS‐RAB14 axis in CRC.
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Affiliation(s)
- Min Li
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China.,Pharmacy Department, Wuxi 9th People's Hospital Affiliated to Soochow University, Wuxi, Jiangsu, China
| | - Zehua Bian
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Guoying Jin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jia Zhang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Surui Yao
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Yuyang Feng
- Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Xue Wang
- Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
| | - Yuan Yin
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Bojian Fei
- Department of Surgical Oncology, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Qingjun You
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Zhaohui Huang
- Wuxi Cancer Institute, Affiliated Hospital of Jiangnan University, Wuxi, Jiangsu, China.,Cancer Epigenetics Program, Wuxi School of Medicine, Jiangnan University, Wuxi, Jiangsu, China
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