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Zhang J, Tian Z, Qin C, Momeni MR. The effects of exercise on epigenetic modifications: focus on DNA methylation, histone modifications and non-coding RNAs. Hum Cell 2024; 37:887-903. [PMID: 38587596 DOI: 10.1007/s13577-024-01057-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/10/2024] [Indexed: 04/09/2024]
Abstract
Physical activity on a regular basis has been shown to bolster the overall wellness of an individual; research is now revealing that these changes are accompanied by epigenetic modifications. Regular exercise has been proven to make intervention plans more successful and prolong adherence to them. When it comes to epigenetic changes, there are four primary components. This includes changes to the DNA, histones, expression of particular non-coding RNAs and DNA methylation. External triggers, such as physical activity, can lead to modifications in the epigenetic components, resulting in changes in the transcription process. This report pays attention to the current knowledge that pertains to the epigenetic alterations that occur after exercise, the genes affected and the resulting characteristics.
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Affiliation(s)
- Junxiong Zhang
- Xiamen Academy of Art and Design, Fuzhou University, Xiamen, 361024, Fujian, China.
| | - Zhongxin Tian
- College of Physical Education, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China.
| | - Chao Qin
- College of Physical Education, Taiyuan University of Technology, Taiyuan, 030024, Shanxi, China
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Zhang X, Wan M, Min X, Chu G, Luo Y, Han Z, Li W, Xu R, Luo J, Li W, Yang Y, Ma Y, Jiao L, Wang T. Circular RNA as biomarkers for acute ischemic stroke: A systematic review and meta-analysis. CNS Neurosci Ther 2023. [PMID: 37186176 DOI: 10.1111/cns.14220] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 05/17/2023] Open
Abstract
BACKGROUND Rapid diagnosis of acute ischemic stroke (AIS) patients is still challenging, and reliable biomarkers are needed. Noncoding RNAs are important for many physiological activities, among which circular RNAs (circRNAs) have been proven to be more tissue-specific and conservative. Many recent studies found the potential of circRNAs as biomarkers for many diseases, including cardiovascular diseases, cancers, and ischemic stroke. This systemic review and meta-analysis aimed to identify circRNAs as potential biomarkers for AIS. METHODS This study has been prospectively registered in PROSPERO (Registration No. 11 CRD42021288033). Published literature comparing circRNA expression profiles between AIS and non-AIS in human and animal models were retrieved from the articles published by January 2023 in major databases. We descriptively summarized the included studies, conducted meta-analysis under a random effects model, and did bioinformatics analysis including Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. RESULTS Totally 23 studies were included, reporting 18 distinctive upregulated and 20 distinctive downregulated circRNAs. Diagnostic meta-analysis indicated discriminative ability of the circRNAs. Furthermore, circRNA HECTD1, circRNA DLGAP4, circRNA CDC14A, circRNA SCMH1, and circRNA TLK1 were reported with the same regulation trend in more than one study (animal studies included). GO and KEGG enrichment analyses indicated that the target genes of these five circRNAs were enriched in regulating cell proliferation, apoptosis, and oxidative stress. CONCLUSIONS This study demonstrates that circRNAs (circRNA HECTD1, circRNA DLGAP4, circRNA CDC14A, circRNA SCMH1, and circRNA TLK1) generally are promising as potential biomarkers for AIS. However, due to the limited number of studies, diagnostic value of individual circRNA could not be validated. More in vitro and in vivo functional studies are needed.
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Affiliation(s)
- Xiao Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Mengyao Wan
- Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiaoli Min
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital, Kunming Medical University, Kunming, China
| | - Guanglei Chu
- Department of Neurology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yumin Luo
- Institute of Cerebrovascular Diseases Research and Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Ziping Han
- Institute of Cerebrovascular Diseases Research and Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Wei Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Liaocheng People's Hospital, Liaocheng, China
| | - Ran Xu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Jichang Luo
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Wenjing Li
- National Laboratory of Pattern Recognition, Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Yutong Yang
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Yan Ma
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
| | - Liqun Jiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
- Department of Interventional Neuroradiology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Tao Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China
- China International Neuroscience Institute (China-INI), Beijing, China
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Li J, Zhang Y, Xu Q, Zhang Y, Bei S, Ding Y, Zhang X, Feng L. Diagnostic value of circulating lncRNAs for gastric cancer: A systematic review and meta-analysis. Front Oncol 2022; 12:1058028. [PMID: 36561519 PMCID: PMC9763557 DOI: 10.3389/fonc.2022.1058028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/08/2022] [Indexed: 12/12/2022] Open
Abstract
Objective With the prevalence of next-generation sequencing (NGS) technology, a large number of long non-coding RNAs (lncRNAs) have attracted tremendous attention and have been the topic of extensive research on gastric cancer (GC). It was revealed that lncRNAs not only participate in the transduction of various signaling pathways, thus influencing GC genesis and development, but also have the potential for GC diagnosis. Therefore, we aimed to conduct a meta-analysis of previous studies on GC. Materials and methods An electronic search was made before August 2021 on databases including PubMed, Embase, and Web of Science. Relevant articles that compare lncRNA expression in GC patients and healthy controls were summarized. We conducted a meta-analysis with the objective of evaluating the ability of lncRNAs in diagnosing GC. Results A total of 40 original research studies including 6,772 participants were discussed in this meta-analysis. The overall sensitivity, specificity, and the area under the curve (AUC) were 0.78 (95% CI: 0.75-0.81), 0.79 (95% CI: 0.74-0.83), and 0.85 (95% CI: 0.81-0.87), respectively. The value of pooled diagnostic odds ratios (DORs) was 13.00 (95% CI: 10.00-17.00). Conclusions This meta-analysis revealed that serum or plasma lncRNAs have high sensitivity and specificity, which makes lncRNAs clinically feasible in diagnosing GC. The results from this meta-analysis demonstrated that peripheral blood lncRNAs may become novel noninvasive biomarkers in the foreseeable future. At the same time, it should be noted that a greater number of blood samples and more evidence from rigorous multicenter clinical studies are necessary to justify their applicability as cancer biomarkers.
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Affiliation(s)
| | | | | | | | | | | | | | - Li Feng
- *Correspondence: Xiaohong Zhang, ; Li Feng,
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Ma X, Ou K, Liu X, Yang L. Application progress of liquid biopsy in gastric cancer. Front Oncol 2022; 12:969866. [PMID: 36185234 PMCID: PMC9521037 DOI: 10.3389/fonc.2022.969866] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 08/26/2022] [Indexed: 11/13/2022] Open
Abstract
Gastric cancer (GC) is one of the most common malignant tumors globally. Guiding the individualized treatment of GC is the focus of research. Obtaining representative biological samples to study the biological characteristics of GC is the focus of diagnosis and treatment of GC. Liquid biopsy technology can use high-throughput sequencing technology to detect biological genetic information in blood. Compared with traditional tissue biopsy, liquid biopsy can determine the dynamic changes of tumor. As a noninvasive auxiliary diagnostic method, liquid biopsy can provide diagnostic and prognostic information concerning the progression of the disease. Liquid biopsy includes circulating tumor cells, circulating tumor DNA, circulating tumor RNA, tumor educated platelets, exosomes, and cytokines. This article describes the classification of liquid biopsy and its application value in the occurrence, development, and therapeutic efficacy of GC.
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Kaczor-Urbanowicz KE, Saad M, Grogan TR, Li F, Heo YJ, Elashoff D, Bresalier RS, Wong DTW, Kim Y. Performance of Salivary Extracellular RNA Biomarker Panels for Gastric Cancer Differs between Distinct Populations. Cancers (Basel) 2022; 14:3632. [PMID: 35892889 PMCID: PMC9331389 DOI: 10.3390/cancers14153632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Revised: 06/27/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
Gastric cancer (GC) has the fifth highest incidence among cancers and is the fourth leading cause of cancer-related death GC has predominantly a higher number of cases in certain ethnic groups such as the Korean population. GC found at an early stage is more treatable and has a higher survival rate as compared with GC found at a late stage. However, a diagnosis of GC is often delayed due to the lack of early symptoms and available screening programs in United States. Extracellular RNA (exRNA) is an emerging paradigm; exRNAs have the potential to serve as biomarkers in panels aimed at early detection of cancer. We previously reported the successful use of a panel of salivary exRNA for detecting GC in a high-prevalence Korean cohort, and that genetic changes reflected cancer-associated salivary exRNA changes. The current study is a case-control study of salivary exRNA biomarkers for detecting GC in an ethnically distinct U.S. cohort. A model constructed for the U.S. cohort combined demographic characteristics and salivary miRNA and mRNA biomarkers for GC and yielded an area under the receiver operating characteristic (ROC) curve (AUC) of 0.78. However, the constituents of this model differed from that constructed for the Korean cohort, thus, emphasizing the importance of population-specific biomarker development and validation.
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Affiliation(s)
- Karolina Elżbieta Kaczor-Urbanowicz
- Center for Oral and Head/Neck Oncology Research, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA; (K.E.K.-U.); (M.S.); (F.L.); (Y.J.H.)
- UCLA Institute for Quantitative and Computational Biosciences, University of California at Los Angeles, Los Angeles, CA 90095, USA
- UCLA Section of Orthodontics, University of California at Los Angeles, Los Angeles, CA 90095, USA
- Section of Biosystems and Function, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - Mustafa Saad
- Center for Oral and Head/Neck Oncology Research, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA; (K.E.K.-U.); (M.S.); (F.L.); (Y.J.H.)
| | - Tristan R. Grogan
- Department of Medicine Statistics Core, David Geffen School of Medicine at the University of California at Los Angeles, Los Angeles, CA 90024, USA; (T.R.G.); (D.E.)
| | - Feng Li
- Center for Oral and Head/Neck Oncology Research, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA; (K.E.K.-U.); (M.S.); (F.L.); (Y.J.H.)
- Section of Biosystems and Function, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA
| | - You Jeong Heo
- Center for Oral and Head/Neck Oncology Research, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA; (K.E.K.-U.); (M.S.); (F.L.); (Y.J.H.)
| | - David Elashoff
- Department of Medicine Statistics Core, David Geffen School of Medicine at the University of California at Los Angeles, Los Angeles, CA 90024, USA; (T.R.G.); (D.E.)
| | - Robert S. Bresalier
- Department of Gastroenterology, Hepatology and Nutrition, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - David T. W. Wong
- Center for Oral and Head/Neck Oncology Research, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA; (K.E.K.-U.); (M.S.); (F.L.); (Y.J.H.)
- Section of Biosystems and Function, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA
- UCLA’s Jonsson Comprehensive Cancer Center, Los Angeles, CA 90024, USA
| | - Yong Kim
- Center for Oral and Head/Neck Oncology Research, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA; (K.E.K.-U.); (M.S.); (F.L.); (Y.J.H.)
- Section of Biosystems and Function, School of Dentistry, University of California at Los Angeles, Los Angeles, CA 90095, USA
- Department of Gastroenterology, Hepatology and Nutrition, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
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Upregulated Circular RNA KIF4A Promotes Cell Migration and Invasion by Regulating MicroRNA-144-3p/EZH2 Axis in Gastric Cancer. JOURNAL OF ONCOLOGY 2022; 2022:3985621. [PMID: 35466313 PMCID: PMC9033408 DOI: 10.1155/2022/3985621] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 03/16/2022] [Indexed: 12/15/2022]
Abstract
Accumulating evidence has shown that circular RNAs (circRNAs) serve a critical regulatory role in various human cancers, including gastric cancer (GC), and in this study, we aimed to explore the functions of circKIF4A in the progression of GC. Our findings demonstrated that circKIF4A was highly expressed in both GC tissues and cell lines, and high intratumoral circKIF4A expression predicted a poor prognosis in GC patients. In vitro gain- and loss-of-function assays indicated that circKIF4A knockdown suppressed the proliferation, migration, invasion, and EMT of GC cells, while these malignant behaviors were enhanced by circKIF4A overexpression. Mechanistically, we found that circKIF4A was mainly located in the cytoplasm, could directly interact with microRNA- (miR-) 144-3p, and functions as a miRNA sponge to regulate EZH2 expression in GC cells. miR-144-3p inhibition or EZH2 restoration largely blocked the effects of circKIF4A knockdown on the malignant behaviors of GC cells. This study indicated that circKIF4A can efficiently sponge miR-144-3p to promote the malignant behaviors of GC cells and may provide a potential biomarker and therapeutic target for GC management.
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Zhang L, Wang M, Ren W, Li S, Zhi K, Gao L, Zheng J. Prognostic Significance of CircRNAs Expression in Oral Squamous Cell Carcinoma. Oral Dis 2022; 29:1439-1453. [PMID: 35286741 DOI: 10.1111/odi.14188] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/25/2022] [Accepted: 03/08/2022] [Indexed: 11/26/2022]
Abstract
OBJECTIVE This systematic review was aimed to comprehensively evaluate the clinicopathological and prognostic value of dysregulated expression of circRNAs in OSCC. MATERIALS AND METHODS The research was carried out by searching mainstream electronic databases including PubMed, Embase, Web of Science, Scopus, LILACS and Cochrane Library to collect relevant studies on prognostic role of circRNAs in OSCC. Pooled hazard ratios (HRs) and odds ratios(ORs) with 95% confidence intervals(CIs) were calculated to assess the association between circRNAs expression, overall survival(OS), disease/recurrence/progression survival(DFS/RFS/PFS) and clinical parameters. RESULTS This research included 1813 patients from 26 selected articles. The pooled HR values(95% CIs) in OS were 2.38(1.92-2.93) for oncogenic circRNAs and 0.43(0.28-0.66) for tumor-suppressor circRNAs respectively, in DFS/RFS/PFS were 2.34(1.73-3.17). The meta-analysis on clinicopathology features showed higher level of oncogenic circRNAs is related to advanced TNM stage and tumor stage, worse histological differentiation, lymph node and distant metastasis, while enforced expression of tumor-suppressor circRNAs is related to inferior TNM stage tumor stage and lymphatic metastasis. CONCLUSION Our meta-analysis implies that circRNAs may be candidate biomarkers for the prognosis and clinicopathology of OSCC.
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Affiliation(s)
- Linfeng Zhang
- Department of Stomatology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Mingfei Wang
- Department of Stomatology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.,School of Stomatology, Qingdao University, Qingdao, Shandong, China
| | - Wenhao Ren
- Department of Oral and Maxillofacial Surgery, Key Laboratory of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Shaoming Li
- Department of Oral and Maxillofacial Surgery, Key Laboratory of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Keqian Zhi
- Department of Oral and Maxillofacial Surgery, Key Laboratory of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Ling Gao
- Department of Oral and Maxillofacial Surgery, Key Laboratory of Oral Clinical Medicine, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jingjing Zheng
- Department of Endodontics, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
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Taheri M, Najafi S, Basiri A, Hussen BM, Baniahmad A, Jamali E, Ghafouri-Fard S. The Role and Clinical Potentials of Circular RNAs in Prostate Cancer. Front Oncol 2021; 11:781414. [PMID: 34804984 PMCID: PMC8604184 DOI: 10.3389/fonc.2021.781414] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/20/2021] [Indexed: 12/15/2022] Open
Abstract
Globally, prostate cancer (PCa) is the second most commonly diagnosed cancer in men globally. Early diagnosis may help in promoting survival in the affected patients. Circular RNAs (circRNAs) are a novel class of non-coding RNAs (ncRNAs) which have been found to show extensive dysregulation in a handful of human diseases including cancers. Progressions in RNA identification techniques have provided a vast number of circRNAs exhibiting either up-regulation or down-regulation in PCa tissues compared to normal adjacent tissues. The mechanism of action is not clear for most of dysregulated circRNAs. Among them, function of a number of newly identified dysregulated circRNAs have been assessed in PCa cells. Increase in cell proliferation, migration, invasion, and metastasis have been reported for up-regulated circRNAs which suggest their role as oncogenes. On the other hand, down-regulated circRNAs have shown tumor suppressing actions in experimental studies. Furthermore, in a majority of studies, circRNAs have been found to sponge microRNAs (miRNAs), negatively regulating expression or activity of the downstream miRNAs. Additionally, they have been identified in interaction with regulatory proteins. This axis consequently regulates a signaling pathway, a tumor suppressor, or an oncogene. Easy, quick, and reliable detection of circRNAs in human body fluids also suggests their potentials as biomarker candidates for diagnosis and prediction of prognosis in PCa patients. In this review, we have discussed the role and potentials of a number of dysregulated circRNAs in PCa.
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Affiliation(s)
- Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Najafi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Basiri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Elena Jamali
- Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Shi Q, Zhou C, Xie R, Li M, Shen P, Lu Y, Ma S. CircCNIH4 inhibits gastric cancer progression via regulating DKK2 and FRZB expression and Wnt/β-catenin pathway. ACTA ACUST UNITED AC 2021; 28:19. [PMID: 34364402 PMCID: PMC8349030 DOI: 10.1186/s40709-021-00140-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 04/13/2021] [Indexed: 12/12/2022]
Abstract
Background Circular RNAs (circRNAs) have been reported to play an important role in tumor progression in various cancer types, including gastric cancer. The aim of this study was to investigate the role of circCNIH4 (hsa_circ_0000190) in gastric cancer and the underlying mechanism. Methods The expression levels of circCNIH4 and Wnt antagonist genes were detected by quantitative real-time polymerase chain reaction (qRT-PCR). The protein levels of β-catenin, Ki67, Dickkopf 2 (DKK2) and Frizzled related protein (FRZB) were measured by western blot. Ectopic overexpression or knockdown of circCNIH4, proliferation, apoptosis, migration and invasion by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT), flow cytometry and transwell assay in vitro, and in vivo experiment, were employed to assess the role of circCNIH4 in gastric cancer. Results CircCNIH4 was downregulated in gastric cancer tissues and cells. Overexpression of circCNIH4 inhibited gastric cancer cell proliferation, migration and invasion and promoted apoptosis by inactivating Wnt/β-catenin pathway in vitro. CircCNIH4 induced the expression of DKK2 and FRZB in gastric cancer cells. Moreover, silencing of DKK2 or FRZB reversed circCNIH4 overexpression-mediated effects on gastric cancer cells. Additionally, circCNIH4 suppressed tumor growth via regulating DKK2 and FRZB expression in gastric cancer in vivo. Conclusion Our study demonstrated that circCNIH4 played a tumor-inhibiting role through upregulating DKK2 and FRZB expression and suppressing Wnt/β-catenin pathway in gastric cancer, which might provide a potential biomarker for the diagnosis and treatment of gastric cancer. Supplementary Information The online version contains supplementary material available at 10.1186/s40709-021-00140-x.
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Affiliation(s)
- Qi Shi
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Chuanwen Zhou
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Rui Xie
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Miaomiao Li
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Peng Shen
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Yining Lu
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China
| | - Shijie Ma
- Department of Gastroenterology, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, No. 1, West Huanghe Road, Huaian, 223300, Jiangsu, China.
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Xu Y, Gao P, Wang Z, Su Z, Liao G, Han Y, Cui Y, Yao Y, Zhong X. Circ-LAMP1 contributes to the growth and metastasis of cholangiocarcinoma via miR-556-5p and miR-567 mediated YY1 activation. J Cell Mol Med 2021; 25:3226-3238. [PMID: 33675150 PMCID: PMC8034453 DOI: 10.1111/jcmm.16392] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 01/29/2021] [Accepted: 02/08/2021] [Indexed: 12/11/2022] Open
Abstract
Dysregulation of circular RNAs (circRNAs) executes important regulatory roles in carcinogenesis. Nonetheless, few studies focused on the mechanisms of circRNAs in cholangiocarcinoma (CCA). qRT‐PCR was applied to verify the dysregulated circRNAs in CCA. Fisher's exact test, Kaplan‐Meier analysis and Cox regression model were utilized to investigate the clinical implications of circ‐LAMP1 in the patients with CCA. The viability, apoptosis, migration and invasion of CCA cells were detected after silencing/overexpression of circ‐LAMP1. Xenograft and lung metastasis assays were performed to verify the in vitro results. The regulatory networks of circ‐LAMP1 were unveiled by bioinformatic analysis, RNA immunoprecipitation (RIP), RNA pulldown and luciferase reporter assays. Up‐regulation of circ‐LAMP1 was found in CCA tissue samples and cell lines. Enhanced level of circ‐LAMP1 was linked to clinical severity, high post‐operative recurrence and poor prognosis for the patients with CCA. Gain/loss‐of‐function assays confirmed the oncogenic role of circ‐LAMP1 in mediating cell growth, apoptosis, migration and invasion. Nevertheless, the level of circ‐LAMP1 had no effect on normal biliary epithelium proliferation and apoptosis. Animal study further verified the in vitro data. Mechanistically, circ‐LAMP1 directly sponged miR‐556‐5p and miR‐567, thereby releasing their suppression on YY1 at post‐transcriptional level. Rescue assay indicated that the oncogenic role of circ‐LAMP1 is partially dependent on its modulation of YY1 in CCA. In summary, this study suggested that circ‐LAMP1 might be used as a promising biomarker/therapeutic target for CCA.
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Affiliation(s)
- Yi Xu
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China.,Young Scholar of General Surgery Climbing Program of China, China
| | - Ping Gao
- Department of Endocrinology and Metabolism, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhidong Wang
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Zhilei Su
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Guanqun Liao
- Department of Interventional Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Yi Han
- Department for Visceral, Thoracic and Vascular Surgery at the University Hospital, Technical University Dresden, Dresden, Germany
| | - Yifeng Cui
- Department of Hepatic Surgery, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yue Yao
- Department of Endocrinology and Metabolism, Second Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiangyu Zhong
- Department of Hepatopancreatobiliary Surgery, Second Affiliated Hospital of Harbin Medical University, Harbin, China
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11
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CircRNAs and Fusion-circRNAs in cancer: New players in an old game. Cell Signal 2020; 75:109747. [DOI: 10.1016/j.cellsig.2020.109747] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/13/2020] [Accepted: 08/18/2020] [Indexed: 12/12/2022]
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Yamamoto H, Watanabe Y, Sato Y, Maehata T, Itoh F. Non-Invasive Early Molecular Detection of Gastric Cancers. Cancers (Basel) 2020; 12:E2880. [PMID: 33036473 PMCID: PMC7600616 DOI: 10.3390/cancers12102880] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/29/2020] [Accepted: 10/04/2020] [Indexed: 12/14/2022] Open
Abstract
Gastric cancer (GC) is a significant source of global cancer death with a high mortality rate, because the majority of patients with GC are diagnosed at a late stage, with limited therapeutic choices and poor outcomes. Therefore, development of minimally invasive or noninvasive biomarkers which are specific to GC is crucially needed. The latest advancements in the understanding of GC molecular landscapes and molecular biological methods have accelerated attempts to diagnose GC at an early stage. Body fluids, including peripheral blood, saliva, gastric juice/wash, urine, and others, can be a source of biomarkers, offering new methods for the early detection of GC. Liquid biopsy-based methods using circulating sources of cancer nucleic acids could also be considered as alternative strategies. Moreover, investigating gastric juices/washes could represent an alternative for the detection of GC via invasive biopsy. This review summarizes recently reported biomarkers based on DNA methylation, microRNA, long noncoding RNA, circular RNA, or extracellular vesicles (exosomes) for the detection of GC. Although the majority of studies have been conducted to detect these alterations in advanced-stage GC and only a few in population studies or early-stage GC, some biomarkers are potentially valuable for the development of novel approaches for an early noninvasive detection of GC.
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Affiliation(s)
- Hiroyuki Yamamoto
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan; (Y.W.); (Y.S.); (T.M.); (F.I.)
| | - Yoshiyuki Watanabe
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan; (Y.W.); (Y.S.); (T.M.); (F.I.)
- Department of Internal Medicine, Kawasaki Rinko General Hospital, Kawasaki 210-0806, Japan
| | - Yoshinori Sato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan; (Y.W.); (Y.S.); (T.M.); (F.I.)
| | - Tadateru Maehata
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan; (Y.W.); (Y.S.); (T.M.); (F.I.)
| | - Fumio Itoh
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki 216-8511, Japan; (Y.W.); (Y.S.); (T.M.); (F.I.)
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Qu J, Yang J, Chen M, Wei R, Tian J. CircFLNA Acts as a Sponge of miR-646 to Facilitate the Proliferation, Metastasis, Glycolysis, and Apoptosis Inhibition of Gastric Cancer by Targeting PFKFB2. Cancer Manag Res 2020; 12:8093-8103. [PMID: 32982406 PMCID: PMC7490063 DOI: 10.2147/cmar.s264674] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 08/08/2020] [Indexed: 12/12/2022] Open
Abstract
Background Many studies have confirmed that circular (circRNA) is involved in the development of gastric cancer (GC). However, the role of circFLNA in the progression of GC remains unclear. Methods Quantitative real-time PCR (qRT-PCR) was used to measure the relative expression of circFLNA, microRNA (miR)-646 and 6-phosphofructo-2-kinase/fructose-2, 6-biphosphatase 2 (PFKFB2). Cell counting kit 8 (CCK8) assay, transwell assay and flow cytometry were performed to determine the proliferation, migration, invasion and apoptosis of cells, respectively. GC tumor xenograft models were built to confirm the function of circFLNA silencing on GC tumor growth in vivo. Furthermore, the lactate production, glucose consumption, ATP level and glucose uptake were detected to assess the glycolysis of cells. Then, the interaction between miR-646 and circFLNA or PFKFB2 was confirmed using dual-luciferase reporter assay. RNA immunoprecipitation (RIP) assay was used to verify the interaction between miR-646 and circFLNA further. In addition, Western blot (WB) analysis was employed to detect the relative protein expression of PFKFB2. Results Our results found that circFLNA was upregulated in GC tissues and cells. Silencing of circFLNA could suppress the proliferation, migration, invasion, glycolysis, and enhance the apoptosis of GC cells. Also, circFLNA knockdown reduced GC tumor volume and weight in vivo. Further experiments revealed that circFLNA could sponge miR-646, and miR-646 could target PFKFB2. The rescue experiments indicated that miR-646 inhibitor could reverse the suppressive effect of circFLNA silencing on GC progression, and PFKFB2 overexpression also could invert the inhibition effect of miR-646 on GC progression. Conclusion Our data concluded that circFLNA played a pro-cancer role in GC, which suggested that circFLNA might be a potential biomarker for GC treatment.
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Affiliation(s)
- Juan Qu
- Department of Gastroenterology, Tianjin Nankai Hospital, Tianjin, People's Republic of China
| | - Jizhi Yang
- Department of Traditional Chinese Medicine, Chen Tangzhuang Community Health Service Center, Hexi District, Tianjin, People's Republic of China
| | - Ming Chen
- Department of Gastroenterology, Tianjin Nankai Hospital, Tianjin, People's Republic of China
| | - Rongna Wei
- Department of Gastroenterology, Tianjin Nankai Hospital, Tianjin, People's Republic of China
| | - Jingjing Tian
- Department of Gastroenterology, Tianjin Nankai Hospital, Tianjin, People's Republic of China
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Ge L, Zhang N, Chen Z, Song J, Wu Y, Li Z, Chen F, Wu J, Li D, Li J, Wang C, Wang H, Wang J. Level of N6-Methyladenosine in Peripheral Blood RNA: A Novel Predictive Biomarker for Gastric Cancer. Clin Chem 2020; 66:342-351. [PMID: 32040577 DOI: 10.1093/clinchem/hvz004] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/18/2019] [Indexed: 01/10/2023]
Abstract
BACKGROUND Dysregulation of N6-methyladenosine (m6A) is associated with various human diseases including cancer. This study aimed to evaluate the level of m6A as a biomarker for gastric cancer (GC) diagnosis. METHODS Peripheral blood samples were collected from 100 GC patients, 30 benign gastric disease (BGD) patients, and 75 healthy controls (HCs). Levels of m6A in total RNA and expression of m6A-related proteins were analyzed. RESULTS The m6A levels in peripheral blood RNA were significantly increased in the GC group compared with those in the BGD or HC groups; moreover, levels increased with the progression and metastasis of GC and decreased in GC patients after surgery. The area under the curve (AUC) for m6A in the GC group was 0.929 (95% CI, 0.88-0.96), which is markedly greater than the AUCs for carcinoembryonic antigen (CEA; 0.694) and carbohydrate antigen 199 (CA199; 0.603). The combination of CEA and CA199 with m6A improved the AUC to 0.955 (95% CI, 0.91-0.98). The expressions of m6A demethylases ALKBH5 and FTO were significantly downregulated in the GC group compared with the HC group. Coculture with GC cells increased the m6A of RNA in promyelocytic (HL-60) and monocytic (THP-1) leukemia cells and nontumorigenic human peripheral blood B lymphocyte cells (PENG-EBV). Furthermore, a xenograft model enhanced the m6A in peripheral blood RNA of mice. Accordingly, expressions of ALKBH5 and FTO were decreased both in vitro and in vivo. CONCLUSIONS Level of m6A in peripheral blood RNA is a promising noninvasive diagnostic biomarker for GC patients.
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Affiliation(s)
- Lichen Ge
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Nan Zhang
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhuojia Chen
- Department of Pharmacy, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jiaxi Song
- Department of Clinical Laboratory, Nanjing Hospital of Traditional Chinese Medicine, The Third Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Yingmin Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Zhuoling Li
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Feng Chen
- Department of Pharmacy, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jia Wu
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Dandan Li
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jiexin Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Cheng Wang
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Hongsheng Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, China
| | - Junjun Wang
- Department of Clinical Laboratory, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
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Circular RNAs in Gastric Cancer: Potential Biomarkers and Therapeutic Targets. BIOMED RESEARCH INTERNATIONAL 2020; 2020:2790679. [PMID: 32685459 PMCID: PMC7345955 DOI: 10.1155/2020/2790679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/29/2020] [Accepted: 06/01/2020] [Indexed: 12/15/2022]
Abstract
Circular RNAs (circRNAs), as a recently established group of endogenous noncoding RNAs, have been involved in the occurrence and development of different malignancies. Gastric cancer (GC) remains a globally significant contributor to death in cancer patients due to insufficient early diagnosis, limited treatment measures, and poor prognosis. An increasing number of studies have found that many circRNAs are dysregulated in GC and are closely associated with its tumorigenesis and metastasis. Thus, circRNAs have the potential to serve as diagnostic and prognostic biomarkers and even therapeutic targets. This review comprehensively summarizes the most recent findings on how circRNAs influence GC progression and their clinical value. In addition, we present several methological deficiencies in the studies and provide some promising ideas for future research.
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Meinecke A, Mitzka S, Just A, Cushman S, Stojanović SD, Xiao K, Mooren FC, Fiedler J, Thum T. Cardiac endurance training alters plasma profiles of circular RNA MBOAT2. Am J Physiol Heart Circ Physiol 2020; 319:H13-H21. [DOI: 10.1152/ajpheart.00067.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In brief, we herein report a timeline of circulating circular RNA (circRNA) MBOAT2 in a cohort of marathon runners. Time-course analysis of plasmatic circRNA MBOAT2 demonstrated a significantly lowered level 24 h after the marathon. Abundancy of circRNA was correlated to physical exercise parameters highlighting the role of circRNA MBOAT2 as a valuable noncoding RNA biomarker detecting and following up cardiopulmonary adaption.
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Affiliation(s)
- Anna Meinecke
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Saskia Mitzka
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Annette Just
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Sarah Cushman
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Stevan D. Stojanović
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Ke Xiao
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Frank C. Mooren
- Department of Health, University of Witten/Herdecke, Witten, Germany
| | - Jan Fiedler
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
| | - Thomas Thum
- Institute of Molecular and Translational Therapeutic Strategies, Hannover Medical School, Hannover, Germany
- REBIRTH Center of Translational Regenerative Medicine, Hannover Medical School, Hannover, Germany
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Liang L, Li L. Down-Regulation of circNRIP1 Promotes the Apoptosis and Inhibits the Migration and Invasion of Gastric Cancer Cells by miR-182/ROCK1 Axis. Onco Targets Ther 2020; 13:6279-6288. [PMID: 32636647 PMCID: PMC7335292 DOI: 10.2147/ott.s221633] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 02/26/2020] [Indexed: 12/18/2022] Open
Abstract
Aim Circular RNAs (circRNAs) play important roles in the progression of human cancers. circRNA nuclear receptor interacting protein 1 (circNRIP1) has been reported to play as an oncogene in gastric cancer. However, the mechanism underlying circNRIP1 in gastric cancer progression is far from understood. Patients and Methods Forty-five gastric cancer patients were recruited and overall survival of patients was analyzed. Gastric cancer cell lines MGC-803 and AGS cells were cultured for study in vitro. The expression levels of circNRIP1, microRNA (miR)-182 and rho-associated protein kinase 1 (ROCK1) were detected by quantitative real-time polymerase chain reaction or Western blot. Cell migration, invasion, cell cycle distribution and apoptosis were determined by transwell, flow cytometry and Western blot assays, respectively. The target association between miR-182 and circNRIP1 or ROCK1 was assessed by luciferase reporter assay and RNA immunoprecipitation. Results circNRIP1 expression was enhanced in gastric cancer tissues and cells and high expression of circNRIP1 indicated poor survival of patients. Knockdown of circNRIP1 suppressed cell migration and invasion, arrested cell cycle at G0-G1 phase and promoted apoptosis in gastric cancer cells. miR-182 was a target of circNRIP1 and its deficiency reversed the effect of circNRIP1 silence on cell migration, invasion, cell cycle distribution and apoptosis in gastric cancer cells. Moreover, ROCK1 was validated as a target of miR-182 and competitively regulated by circNRIP1. Conclusion Silence of circNRIP1 inhibited progression of gastric cancer by increasing miR-182 and decreasing ROCK1, providing a novel target for the treatment of gastric cancer.
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Affiliation(s)
- Lu Liang
- Department of Oncology, Shangqiu First People's Hospital, Shangqiu, Henan Province 476100, People's Republic of China
| | - Lu Li
- School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan Province 476100, People's Republic of China
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Wang Y, Zhang J, Chen X, Gao L. Circ_0001023 Promotes Proliferation and Metastasis of Gastric Cancer Cells Through miR-409-3p/PHF10 Axis. Onco Targets Ther 2020; 13:4533-4544. [PMID: 32547084 PMCID: PMC7250310 DOI: 10.2147/ott.s244358] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 04/02/2020] [Indexed: 12/14/2022] Open
Abstract
Background Circular RNAs (circRNAs) have been well documented to regulate the gene expression via sponging microRNA (miRNA) in diverse neoplasms including gastric cancer (GC). Methods In the present study, the expressions of circ_0001023, miR-409-3p, and plant homeodomain finger 10 (PHF10) in GC tissues were detected by qRT-PCR. Chi-square test was performed to analyze the associations between circ_0001023 and pathological parameters. Cell Counting Kit-8 assay, colony formation assay, flow cytometry, and transwell assay were adopted to detect the role of circ_0001023/miR-409-3p axis in the proliferation, apoptosis, and migration of GC cells, respectively. The targeting relationship between circ_0001023 and miR-409-3p was investigated by dual-luciferase gene reporter gene assay. Additionally, subcutaneous xenotransplanted tumor model in nude mice was established to detect the function of circ_0001023 on GC growth in vivo. Results Compared with adjacent tissues, the expression of circ_0001023 was significantly upregulated and correlated with lymph node invasion and higher T stage of GC patients. It has also been proved that circ_0001023 could target miR-409-3p. Silencing circ_0001023 can impede the proliferation of GC cells and promote apoptosis, while miR-409-3p inhibitors can partially reverse the biological behavior of GC cells mentioned above. Moreover, the expression of circ_0001023 was reversely associated with miR-409-3p expression but positively correlated with PHF10, a downstream oncogene of miR-409-3p. Conclusion Collectively, it is concluded that circ_0001023 promotes the progression of GC via regulating miR-409-3p/PHF10 axis.
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Affiliation(s)
- Yongxiang Wang
- Department of Abdominal Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, Zhejiang Province, People's Republic of China
| | - Jianbin Zhang
- Department of Oncology, Zhejiang Provincial People's Hospital, Hangzhou 310022, Zhejiang Province, People's Republic of China.,Department of Oncology, People's Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, People's Republic of China
| | - Xiaochen Chen
- Department of Oncology, Zhejiang Provincial People's Hospital, Hangzhou 310022, Zhejiang Province, People's Republic of China.,Department of Oncology, People's Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, People's Republic of China
| | - Liang Gao
- Department of Oncology, Zhejiang Provincial People's Hospital, Hangzhou 310022, Zhejiang Province, People's Republic of China.,Department of Oncology, People's Hospital of Hangzhou Medical College, Hangzhou 310014, Zhejiang Province, People's Republic of China
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Tang Q, Hann SS. Biological Roles and Mechanisms of Circular RNA in Human Cancers. Onco Targets Ther 2020; 13:2067-2092. [PMID: 32210574 PMCID: PMC7069569 DOI: 10.2147/ott.s233672] [Citation(s) in RCA: 122] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/20/2020] [Indexed: 12/15/2022] Open
Abstract
Circular RNA (circRNA) is an intriguing class of RNA with covalently closed-loop structure and is highly stable and conservative. As new members of the ncRNAs, the function, mechanism, potential diagnostic biomarker, and therapeutic target have raised increased attention. Most circRNAs are presented with characteristics of abundance, stability, conservatism, and often exhibiting tissue/developmental-stage-specific manner. Over 30,000 circRNAs have been identified with their unique structures to maintain stability more easily than linear RNAs. An increased numbers of circRNAs are dysregulated and involved in several biological processes of malignance, such as tumorigenesis, growth, invasion, metastasis, apoptosis, and vascularization. Emerging evidence suggests that circRNAs play important roles by acting as miRNA sponge or protein scaffolding, autophagy regulators, and interacting with RNA-binding protein (RBP), which may potentially serve as a novel promising biomarker for prevention, diagnosis and therapeutic target for treatment of human cancer with great significance either in scientific research or clinic arena. This review introduces concept, major features of circRNAs, and mainly describes the major biological functions and clinical relevance of circRNAs, as well as expressions and regulatory mechanisms in various types of human cancer, including pathogenesis, mode of action, potential target, signaling regulatory pathways, drug resistance, and therapeutic biomarkers. All of which provide evidence for the potential utilities of circRNAs in the diagnosis and treatment of cancer.
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Affiliation(s)
- Qing Tang
- Laboratory of Tumor Biology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, People's Republic of China
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, People's Republic of China
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20
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Circ_0032821 acts as an oncogene in cell proliferation, metastasis and autophagy in human gastric cancer cells in vitro and in vivo through activating MEK1/ERK1/2 signaling pathway. Cancer Cell Int 2020; 20:74. [PMID: 32165864 PMCID: PMC7060514 DOI: 10.1186/s12935-020-1151-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Accepted: 02/24/2020] [Indexed: 02/06/2023] Open
Abstract
Background Circular RNA (circRNA) is increasingly attracting attention in gastric cancer (GC). Hsa_circ_0032821 (circ_0032821) has been declared to be upregulated in human GC tissues. However, the biological role of circ_0032821 remains undisclosed in GC cells. Methods Expression of circ_0032821 was measured by real-time quantitative PCR. Cell proliferation, autophagy, Epithelial-mesenchymal transition (EMT), migration, and invasion were evaluated by Cell counting kit-8 assay, western blotting or transwell assays. Expression of proliferating cell nuclear antigen (PCNA), Matrix metalloproteinase 2 (MMP2), MMP9, Light chain 3 (LC3), p62, total and phosphorylated Extracellular signal-regulated kinase 1/2 (ERK1/2) and Mitogen-activated protein kinase’s kinase 1 (MEK1) was evaluated by western blotting. Xenograft tumor model was established to measure tumor growth in vivo. Results Circ_0032821 was significantly upregulated in human GC tumors and cells. Moreover, circ_0032821 might be a biomarker for the advanced Tumor node metastasis (TNM) stage, lymphoid node metastasis and poor prognosis in gastric cancer. Knockdown of circ_0032821 by transfection induced decrease of cell proliferation, EMT, migration and invasion, but increase of autophagy of AGS and HGC-27 cells in vitro, as well as induced tumor growth inhibition in vivo. Besides, overexpression of circ_0032821 by transfection functioned the opposite effects in human GC cells. Mechanically, the MEK1/ERK1/2 signaling pathway was activated when circ_0032821 upregulation, whereas inhibited when circ_0032821 silencing. Conclusion Circ_0032821 expression induced cell proliferation, EMT, migration, invasion, and autophagy inhibition in human GC cells in vitro and in vivo through activating MEK1/ERK1/2 signaling pathway, suggesting circ_0032821 as an oncogenic role in GC.
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Balan V, Mihai CT, Cojocaru FD, Uritu CM, Dodi G, Botezat D, Gardikiotis I. Vibrational Spectroscopy Fingerprinting in Medicine: from Molecular to Clinical Practice. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E2884. [PMID: 31489927 PMCID: PMC6766044 DOI: 10.3390/ma12182884] [Citation(s) in RCA: 162] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 12/12/2022]
Abstract
In the last two decades, Fourier Transform Infrared (FTIR) and Raman spectroscopies turn out to be valuable tools, capable of providing fingerprint-type information on the composition and structural conformation of specific molecular species. Vibrational spectroscopy's multiple features, namely highly sensitive to changes at the molecular level, noninvasive, nondestructive, reagent-free, and waste-free analysis, illustrate the potential in biomedical field. In light of this, the current work features recent data and major trends in spectroscopic analyses going from in vivo measurements up to ex vivo extracted and processed materials. The ability to offer insights into the structural variations underpinning pathogenesis of diseases could provide a platform for disease diagnosis and therapy effectiveness evaluation as a future standard clinical tool.
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Affiliation(s)
- Vera Balan
- Faculty of Medical Bioengineering, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Cosmin-Teodor Mihai
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Florina-Daniela Cojocaru
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Cristina-Mariana Uritu
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Gianina Dodi
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Doru Botezat
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania.
| | - Ioannis Gardikiotis
- Advanced Centre for Research-Development in Experimental Medicine, Grigore T. Popa University of Medicine and Pharmacy of Iași, Iași 700115, Romania
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Pardini B, Sabo AA, Birolo G, Calin GA. Noncoding RNAs in Extracellular Fluids as Cancer Biomarkers: The New Frontier of Liquid Biopsies. Cancers (Basel) 2019; 11:E1170. [PMID: 31416190 PMCID: PMC6721601 DOI: 10.3390/cancers11081170] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/04/2019] [Accepted: 08/10/2019] [Indexed: 02/06/2023] Open
Abstract
The last two decades of cancer research have been devoted in two directions: (1) understanding the mechanism of carcinogenesis for an effective treatment, and (2) improving cancer prevention and screening for early detection of the disease. This last aspect has been developed, especially for certain types of cancers, thanks also to the introduction of new concepts such as liquid biopsies and precision medicine. In this context, there is a growing interest in the application of alternative and noninvasive methodologies to search for cancer biomarkers. The new frontiers of the research lead to a search for RNA molecules circulating in body fluids. Searching for biomarkers in extracellular body fluids represents a better option for patients because they are easier to access, less painful, and potentially more economical. Moreover, the possibility for these types of samples to be taken repeatedly, allows a better monitoring of the disease progression or treatment efficacy for a better intervention and dynamic treatment of the patient, which is the fundamental basis of personalized medicine. RNA molecules, freely circulating in body fluids or packed in microvesicles, have all the characteristics of the ideal biomarkers owing to their high stability under storage and handling conditions and being able to be sampled several times for monitoring. Moreover, as demonstrated for many cancers, their plasma/serum levels mirror those in the primary tumor. There are a large variety of RNA species noncoding for proteins that could be used as cancer biomarkers in liquid biopsies. Among them, the most studied are microRNAs, but recently the attention of the researcher has been also directed towards Piwi-interacting RNAs, circular RNAs, and other small noncoding RNAs. Another class of RNA species, the long noncoding RNAs, is larger than microRNAs and represents a very versatile and promising group of molecules which, apart from their use as biomarkers, have also a possible therapeutic role. In this review, we will give an overview of the most common noncoding RNA species detectable in extracellular fluids and will provide an update concerning the situation of the research on these molecules as cancer biomarkers.
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Affiliation(s)
- Barbara Pardini
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
- Department of Medical Sciences, University of Turin, 10124 Turin, Italy.
- Unit of Molecular Epidemiology and Exposome, Italian Institute for Genomic Medicine (IIGM), 10126 Turin, Italy.
| | - Alexandru Anton Sabo
- Department of Pediatrics, Marie Curie Emergency Clinical Hospital for Children, 077120 Bucharest, Romania
| | - Giovanni Birolo
- Department of Medical Sciences, University of Turin, 10124 Turin, Italy
- Unit of Molecular Epidemiology and Exposome, Italian Institute for Genomic Medicine (IIGM), 10126 Turin, Italy
| | - George Adrian Calin
- Department of Experimental Therapeutics, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
- Center for RNA Interference and Non-Coding RNAs, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
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