101
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Lin Q, Shi Y, Liu Z, Mehrpour M, Hamaï A, Gong C. Non-coding RNAs as new autophagy regulators in cancer progression. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166293. [PMID: 34688868 DOI: 10.1016/j.bbadis.2021.166293] [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: 04/29/2021] [Revised: 09/17/2021] [Accepted: 10/10/2021] [Indexed: 12/09/2022]
Abstract
Recent advances highlight that non-coding RNAs (ncRNAs) are emerging as fundamental regulators in various physiological as well as pathological processes by regulating macro-autophagy. Studies have disclosed that macro-autophagy, which is a highly conserved process involving cellular nutrients, components, and recycling of organelles, can be either selective or non-selective and ncRNAs show their regulation on selective autophagy as well as non-selective autophagy. The abnormal expression of ncRNAs will result in the impairment of autophagy and contribute to carcinogenesis and cancer progression by regulating both selective autophagy as well as non-selective autophagy. This review focuses on the regulatory roles of ncRNAs in autophagy and their involvement in cancer which may provide valuable therapeutic targets for cancer management.
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Affiliation(s)
- Qun Lin
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Bioland Laboratory, 510005 Guangzhou, China
| | - Yu Shi
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Bioland Laboratory, 510005 Guangzhou, China
| | - Zihao Liu
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Bioland Laboratory, 510005 Guangzhou, China
| | - Maryam Mehrpour
- Institut Necker-Enfants Malades (INEM), Inserm U1151-CNRS UMR 8253, 75993, Paris, France; Université Paris Descartes-Sorbonne Paris Cité, 75993 Paris, France
| | - Ahmed Hamaï
- Institut Necker-Enfants Malades (INEM), Inserm U1151-CNRS UMR 8253, 75993, Paris, France; Université Paris Descartes-Sorbonne Paris Cité, 75993 Paris, France
| | - Chang Gong
- Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China; Bioland Laboratory, 510005 Guangzhou, China.
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102
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Wu T, Wei B, Lin H, Zhou B, Lin T, Liu Q, Sang H, Liu H, Huang W. Integral Analyses of Competing Endogenous RNA Mechanisms and DNA Methylation Reveal Regulatory Mechanisms in Osteosarcoma. Front Cell Dev Biol 2021; 9:763347. [PMID: 34957096 PMCID: PMC8696003 DOI: 10.3389/fcell.2021.763347] [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: 08/23/2021] [Accepted: 11/26/2021] [Indexed: 12/21/2022] Open
Abstract
Background: Osteosarcoma (OS) is the most common primary malignant bone tumour in children and adolescents, with rapid growth, frequent metastasis, and a poor prognosis, but its pathogenesis has not been fully elucidated. Exploring the pathogenesis of OS is of great significance for improving diagnoses and finding new therapeutic targets. Methods: Differentially expressed circRNAs (DECs), miRNAs (DEMs), methylated DNA sites (DMSs), and mRNAs (DEGs) were identified between OS and control cell lines. GSEA of DEGs and functional enrichment analysis of methylated DEGs were carried out to further identify potential biological processes. Online tools were used to predict the miRNA binding sites of DECs and the mRNA binding sites of DEMs, and then construct a circRNA-miRNA-mRNA network. Next, an analysis of the interaction between methylated DEGs was performed with a protein-protein interaction (PPI) network, and hub gene identification and survival analysis were carried out. The expression pattern of circRNA-miRNA-mRNA was validated by real-time PCR. Results: GSEA and functional enrichment analysis indicated that DEGs and methylated DEGs are involved in important biological processes in cancer. Hsa_circ_0001753/has_miR_760/CD74 network was constructed and validated in cell lines. Low expression levels of CD74 are associated with poor overall survival times and show good diagnostic ability. Conclusion: Methylated DEGs may be involved in the development of OS, and the hsa_circ_0001753/has_miR_760/CD74 network may serve as a target for the early diagnosis of and targeted therapy for OS.
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Affiliation(s)
- Tingrui Wu
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Bo Wei
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hao Lin
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Boan Zhou
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Tao Lin
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Qianzheng Liu
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Hongxun Sang
- Department of Orthopaedics, Shenzhen Hospital, Southern Medical University, Shenzhen, China
| | - Huan Liu
- Department of Orthopaedics, Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, China.,National Traditional Chinese Medicine Clinical Research Base, The Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, China
| | - Wenhua Huang
- Orthopaedic Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.,Guangdong Provincial Key Laboratory of Medical Biomechanics, National Key Discipline of Human Anatomy, Guangdong Engineering Research Center for Translation of Medical 3D Printing Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.,Guangdong Medical Innovation Platform for Translation of 3D Printing Application, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
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103
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Cai Zhang, Li B, Huang Y, Gao S, Gao X. Biogenesis, Functions, and Cancer Relationships of a Specific Circular RNA: CircFoxo3. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s106816202106025x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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104
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Li Y, Zhang H, Guo J, Li W, Wang X, Zhang C, Sun Q, Ma Z. Downregulation of LINC01296 suppresses non-small-cell lung cancer via targeting miR-143-3p/ATG2B. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1681-1690. [PMID: 34695177 DOI: 10.1093/abbs/gmab149] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Indexed: 12/24/2022] Open
Abstract
The 5-year survival rate of lung cancer is one of the lowest among various malignant tumors. Long noncoding RNAs (lncRNAs), noncoding RNAs longer than 200 nucleotides, can function either as tumor suppressors or as oncogenes. The aim of this study is to investigate the function of lncRNA LINC01296 and its molecular mechanism in non-small-cell lung cancer (NSCLC). According to the Gene Expression Omnibus database, 10 differentially expressed lncRNAs in NSCLC cells and patient tissues are upregulated. LINC01296 is the one with the most significant overexpression. Knockdown of LINC01296 inhibits the growth and migration, arrests the cell cycle, and promotes the apoptosis of NSCLC cells. Knocking down LINC01296 in vivo suppresses tumor growth and metastasis. LINC01296 also acts as the sponge of miR-143-3p. Lowering the expression of LINC01296 leads to decreased expression of autophagy-related 2B (ATG2B), a target gene of miR-143-3p. Moreover, downregulation of LINC01296 promotes paclitaxel sensitivity in NSCLC. These results demonstrated that the LINC01296/miR-143-3p/ATG2B axis is crucial in promoting the development of NSCLC and paclitaxel resistance. Our study may provide new ideas for the further research of clinical chemotherapy of NSCLC in the near future.
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Affiliation(s)
- Yanli Li
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Hui Zhang
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Jing Guo
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Wanqiu Li
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Xianyi Wang
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Caiyan Zhang
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
| | - Qiangling Sun
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Zhongliang Ma
- Lab for Noncoding RNA & Cancer, School of Life Sciences, Shanghai University, Shanghai 200444, China
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Zhang MY, Huo C, Liu JY, Shi ZE, Zhang WD, Qu JJ, Yue YL, Qu YQ. Identification of a Five Autophagy Subtype-Related Gene Expression Pattern for Improving the Prognosis of Lung Adenocarcinoma. Front Cell Dev Biol 2021; 9:756911. [PMID: 34869345 PMCID: PMC8636677 DOI: 10.3389/fcell.2021.756911] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/27/2021] [Indexed: 12/21/2022] Open
Abstract
Background: Autophagy plays an important role in lung adenocarcinoma (LUAD). In this study, we aimed to explore the autophagy-related gene (ARG) expression pattern and to identify promising autophagy-related biomarkers to improve the prognosis of LUAD. Methods: The gene expression profiles and clinical information of LUAD patients were downloaded from the Cancer Genome Atlas (TCGA), and validation cohort information was extracted from the Gene Expression Omnibus database. The Human Autophagy Database (HADb) was used to extract ARGs. Gene expression data were analyzed using the limma package and visualized using the ggplot2 package as well as the pheatmap package in R software. Functional enrichment analysis was also performed for the differentially expressed ARGs (DEARGs). Then, consensus clustering revealed autophagy-related tumor subtypes, and differentially expressed genes (DEGs) were screened according to the subtypes. Next, the univariate Cox and multivariate Cox regression analyses were used to identify independent prognostic ARGs. After overlapping DEGs and the independent prognostic ARGs, the predictive risk model was established and validated. Correlation analyses between ARGs and clinicopathological variables were also explored. Finally, the TIMER and TISIDB databases were used to further explore the correlation analysis between immune cell infiltration levels and the risk score as well as clinicopathological variables in the predictive risk model. Results: A total of 222 genes from the HADb were identified as ARGs, and 28 of the 222 genes were pooled as DEARGs. The most significant GO term was autophagy (p = 3.05E-07), and KEGG analysis results indicated that 28 DEARGs were significantly enriched in the ErbB signaling pathway (p < 0.001). Then, consensus clustering analysis divided the LUAD into two clusters, and a total of 168 DEGs were identified according to cluster subtypes. Then univariate and multivariate Cox regression analyses were used to identify 12 genes that could serve as independent prognostic indicators. After overlapping 168 DEGs and 12 genes, 10 genes (ATG4A, BAK1, CAPNS1, CCR2, CTSD, EIF2AK3, ITGB1, MBTPS2, SPHK1, ST13) were selected for the further exploration of the prognostic pattern. Survival analysis results indicated that this risk model identified the prognosis (p = 4.379E-10). Combined with the correlation analysis results between ARGs and clinicopathological variables, five ARGs were screened as prognostic genes. Among them, SPHK1 expression levels were positively correlated with CD4+ T cells and dendritic cell infiltration levels. Conclusions: In this study, we constructed a predictive risk model and identified a five autophagy subtype-related gene expression pattern to improve the prognosis of LUAD. Understanding the subtypes of LUAD is helpful to accurately characterize the LUAD and develop personalized treatment.
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Affiliation(s)
- Meng-Yu Zhang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Chen Huo
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Jian-Yu Liu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Zhuang-E Shi
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Wen-Di Zhang
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Jia-Jia Qu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Yue-Liang Yue
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital, Cheeloo College of Medicine, Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
| | - Yi-Qing Qu
- Department of Pulmonary and Critical Care Medicine, Qilu Hospital of Shandong University; Shandong Key Laboratory of Infectious Respiratory Diseases, Jinan, China
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Yang Y, Fan X, Nie Y, Liu D, Zhu D, Wu K, Zhang Y, Li W, Tian X, Wang H, Fan Y. CircTUBGCP3 facilitates the tumorigenesis of lung adenocarcinoma by sponging miR-885-3p. Cancer Cell Int 2021; 21:651. [PMID: 34872582 PMCID: PMC8647460 DOI: 10.1186/s12935-021-02356-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 11/17/2021] [Indexed: 01/17/2023] Open
Abstract
Background Circular RNAs (circRNAs) act pivotal roles in the progression of multiple malignancies. However, the underlying mechanisms by which hsa_circ_0007031 (circTUBGCP3) contributes to lung adenocarcinoma (LAC) remain largely unknown. Methods The association of circTUBGCP3 expression with clinicopathological characteristics and prognosis in patients with LAC was determined by RT-qPCR and fluorescence in situ hybridization. The in vitro functional experiments as well as a subcutaneous tumorigenesis model were executed to estimate the role of circTUBGCP3 in LAC cells. The interaction between circTUBGCP3 and miR-885-3p was confirmed by RNA immunoprecipitation, luciferase gene report and RT-qPCR assays. The effects of circTUBGCP3 on miR-885-3p-mediated Wnt10b/β-catenin signaling were evaluated by Western blot. Results The upregulation of circTUBGCP3 or downregulation of miR-885-3p was associated with the pathological stage and poor survival in patients with LAC. Restored expression of circTUBGCP3 facilitated the growth and invasion of LAC cells, but knockdown of circTUBGCP3 harbored the opposite effects. In mechanism, circTUBGCP3 could act as a sponge of miR-885-3p, which suppressed the cell proliferation and colony formation and attenuated the tumor-promoting effects of circTUBGCP3. Wnt10b as a target of miR-885-3p could be upregulated be circTUBGCP3 and indicate poor survival in patient with LAC. Conclusions Our findings demonstrated that circTUBGCP3 promoted LAC progression by sponging miR-885-3p, and might represent a prognostic factor for LAC. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-02356-2.
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Affiliation(s)
- Yang Yang
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xin Fan
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yunfei Nie
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Donglei Liu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Dengyan Zhu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kai Wu
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yuan Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenhua Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiangyu Tian
- Department of Orthopedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huaqi Wang
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Erqi District, 450052, Zhengzhou, China.
| | - Yuxia Fan
- Department of Thyroid Surgery, The First Affiliated Hospital of Zhengzhou University, No. 1 Jianshe East Road, Erqi District, 450052, Zhengzhou, China.
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Xiong JW, Song SB, Xiong LM, Duan CH, Song Q, Yu DL, Zhang XQ. CircRPPH1 promotes cell proliferation, migration and invasion of non-small cell lung cancer (NSCLC) via the PI3K/AKT and JAK2/STAT3 signaling axes. J Biochem 2021; 171:245-252. [PMID: 34850004 DOI: 10.1093/jb/mvab129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 11/19/2021] [Indexed: 12/25/2022] Open
Abstract
Non-small cell lung cancer (NSCLC) has markedly increased morbidity and mortality rate worldwide. Circular RNAs (circRNAs) were shown to regulate NSCLC progression. But, the underlying pathways of the circRPPH1-mediated regulation of NSCLC still need further exploration. We evaluated circRPPH1 levels in NSCLC tissues and cell lines via qRT-RCR. Moreover, using ectopic plasmid incorporation and siRNA assays, we analyzed the circRPPH1-mediated regulation of cell proliferation (CP), migration (CM), and invasion (CI) in NSCLC cell lines (H1975 and A549 cells), using CCK-8, colony forming, scratch wound, and transwell assays, respectively. CircRPPH1 levels were remarkably high in the NSCLC tissues and cell lines. The transfection experiments showed that circRPPH1 overexpression was able to promote CP, CM and CI of NSCLC cells, while CP, CM and CI were significantly restrained by the knockdown of circRPPH1. We also displayed that circRPPH1 knockdown suppressed the cell progression via inactivating the PI3K/AKT and JAK2/STAT3 signaling axes. Subsequently, in vivo experiment in nude mice was demonstrated that the inhibition of circRPPH1 could reduce the tumor growth of NSCLC. circRPPH1 may accelerate the growth and metastasis of NSCLC, in culture conditions and in animal models, by stimulating the PI3K/AKT and JAK2/STAT3 signaling axes, thus promoting the development of NSCLC.
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Affiliation(s)
- Jian-Wen Xiong
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Si-Bei Song
- Department of Gastroenterology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Lin-Min Xiong
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Chuan-Hui Duan
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Qian Song
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Dong-Liang Yu
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
| | - Xiao-Qiang Zhang
- Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
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Mufangji Decoction and Its Active Ingredient Patchouli Alcohol Inhibit Tumor Growth through Regulating Akt/mTOR-Mediated Autophagy in Nonsmall-Cell Lung Cancer. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:2373865. [PMID: 34764997 PMCID: PMC8577897 DOI: 10.1155/2021/2373865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/06/2021] [Accepted: 10/05/2021] [Indexed: 11/29/2022]
Abstract
Background Nonsmall-cell lung cancer (NSCLC) is the main type of lung cancer, whose morbidity and mortality rank first among malignant tumors. More than 70% of NSCLC patients are diagnosed at locally advanced or advanced stage, missing the best operation period. Chemotherapy and targeted therapy are important means for the treatment of advanced NSCLC, but various side effects seriously affect the curative effect and the life quality of NSCLC patients. Our previous clinical practice has shown that Mufangji Decoction, a classic traditional Chinese medicine, has a significant curative effect in the treatment of NSCLC, but the specific mechanism is not clear. This study intends to explore the potential mechanism of Mufangji Decoction and its active ingredient patchouli alcohol against NSCLC and to provide a scientific basis for the prevention and treatment of NSCLC by traditional Chinese medicine. Methods The in vivo and in vitro experiments were performed to evaluate the antitumor effects and investigate the underlying mechanism of Mufangji Decoction and its active ingredient patchouli alcohol. Network pharmacology was applied to analyze the effective ingredients and potential targets or signaling pathways of Mufangji Decoction. Results Our current study shows that Mufangji Decoction can effectively inhibit the growth of subcutaneous transplantation of NSCLC. The following network pharmacological analysis and in vivo experiment suggest that patchouli alcohol is one of the main active ingredients of Mufangji Decoction and exerts antitumor effects. Further mechanism investigation reveals that the antitumor effect of patchouli alcohol is related to the induction of Akt/mTOR signaling pathway-mediated autophagy in NSCLC cells. Conclusion Mufangji Decoction and its active ingredient patchouli alcohol might exert their antitumor effects in NSCLC partly through regulating Akt/mTOR-mediated autophagy, providing the evidence that traditional Chinese medicine might be a key approach for NSCLC treatment via targeting the Akt/mTOR signal axis.
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109
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Babin L, Andraos E, Fuchs S, Pyronnet S, Brunet E, Meggetto F. From circRNAs to fusion circRNAs in hematological malignancies. JCI Insight 2021; 6:151513. [PMID: 34747369 PMCID: PMC8663548 DOI: 10.1172/jci.insight.151513] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Circular RNAs (circRNAs) represent a type of endogenous noncoding RNA generated by back-splicing events. Unlike the majority of RNAs, circRNAs are covalently closed, without a 5' end or a 3' poly(A) tail. A few circRNAs can be associated with polysomes, suggesting a protein-coding potential. CircRNAs are not degraded by RNA exonucleases or ribonuclease R and are enriched in exosomes. Recent developments in experimental methods coupled with evolving bioinformatic approaches have accelerated functional investigation of circRNAs, which exhibit a stable structure, a long half-life, and tumor specificity and can be extracted from body fluids and used as potential biological markers for tumors. Moreover, circRNAs may regulate the occurrence and development of cancers and contribute to drug resistance through a variety of molecular mechanisms. Despite the identification of a growing number of circRNAs, their effects in hematological cancers remain largely unknown. Recent studies indicate that circRNAs could also originate from fusion genes (fusion circRNAs, f-circRNAs) next to chromosomal translocations, which are considered the primary cause of various cancers, notably hematological malignancies. This Review will focus on circRNAs and f-circRNAs in hematological cancers.
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Affiliation(s)
- Loelia Babin
- CRCT INSERM, UMR1037, Toulouse, France.,Toulouse III University-Paul Sabatier, UMR1037 INSERM, UMR5071 CNRS, Toulouse, France.,The Toulouse Cancer Laboratory of Excellence (TOUCAN), Toulouse, France
| | - Elissa Andraos
- CRCT INSERM, UMR1037, Toulouse, France.,Toulouse III University-Paul Sabatier, UMR1037 INSERM, UMR5071 CNRS, Toulouse, France.,The Toulouse Cancer Laboratory of Excellence (TOUCAN), Toulouse, France
| | - Steffen Fuchs
- CRCT INSERM, UMR1037, Toulouse, France.,Toulouse III University-Paul Sabatier, UMR1037 INSERM, UMR5071 CNRS, Toulouse, France.,The Toulouse Cancer Laboratory of Excellence (TOUCAN), Toulouse, France.,Department of Pediatric Oncology, Charité University Berlin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany.,German Cancer Consortium (DKTK), Partner Site Berlin, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stéphane Pyronnet
- CRCT INSERM, UMR1037, Toulouse, France.,Toulouse III University-Paul Sabatier, UMR1037 INSERM, UMR5071 CNRS, Toulouse, France.,The Toulouse Cancer Laboratory of Excellence (TOUCAN), Toulouse, France
| | - Erika Brunet
- Imagine Institute INSERM Joint Research Unit 1163, Laboratory of Genome Dynamics in the Immune System, Paris, France.,Paris Descartes-Sorbonne University, Imagine Institute, Paris, France
| | - Fabienne Meggetto
- CRCT INSERM, UMR1037, Toulouse, France.,Toulouse III University-Paul Sabatier, UMR1037 INSERM, UMR5071 CNRS, Toulouse, France.,The Toulouse Cancer Laboratory of Excellence (TOUCAN), Toulouse, France
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Non-coding RNA-mediated autophagy in cancer: A protumor or antitumor factor? Biochim Biophys Acta Rev Cancer 2021; 1876:188642. [PMID: 34715268 DOI: 10.1016/j.bbcan.2021.188642] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/21/2021] [Accepted: 10/23/2021] [Indexed: 12/17/2022]
Abstract
Autophagy, usually referred to as macroautophagy, is a cytoprotective behavior that helps cells, especially cancer cells, escape crises. However, the role of autophagy in cancer remains controversial. The induction of autophagy is favorable for tumor growth, as it can degrade damaged cell components accumulated during nutrient deficiency, chemotherapy, or other stresses in a timely manner. Whereas the antitumor effect of autophagy might be closely related to its crosstalk with metabolism, immunomodulation, and other pathways. Recent studies have verified that lncRNAs and circRNAs modulate autophagy in carcinogenesis, cancer cells proliferation, apoptosis, metastasis, and chemoresistance via multiple mechanisms. A comprehensive understanding of the regulatory relationships between ncRNAs and autophagy in cancer might resolve chemoresistance and also offer intervention strategies for cancer therapy. This review systematically displays the regulatory effects of lncRNAs and circRNAs on autophagy in the contexts of cancer initiation, progression, and resistance to chemo- or radiotherapy and provides a novel insight into cancer therapy.
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111
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Mei X, Cui XB, Li Y, Chen SY. CircSOD2: A Novel Regulator for Smooth Muscle Proliferation and Neointima Formation. Arterioscler Thromb Vasc Biol 2021; 41:2961-2973. [PMID: 34670409 DOI: 10.1161/atvbaha.121.316911] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Vascular smooth muscle cell (SMC) proliferation contributes to neointima formation following vascular injury. Circular RNA-a novel type of noncoding RNA with closed-loop structure-exhibits cell- and tissue-specific expression patterns. However, the role of circular RNA in SMC proliferation and neointima formation is largely unknown. The objective of this study is to investigate the role and mechanism of circSOD2 in SMC proliferation and neointima formation. Approach and Results: Circular RNA profiling of human aortic SMCs revealed that PDGF (platelet-derived growth factor)-BB up- and downregulated numerous circular RNAs. Among them, circSOD2, derived from back-splicing event of SOD2 (superoxide dismutase 2), was significantly enriched. Knockdown of circSOD2 by short hairpin RNA blocked PDGF-BB-induced SMC proliferation. Inversely, circSOD2 ectopic expression promoted SMC proliferation. Mechanistically, circSOD2 acted as a sponge for miR-206, leading to upregulation of NOTCH3 (notch receptor 3) and NOTCH3 signaling, which regulates cyclin D1 and CDK (cyclin-dependent kinase) 4/6. In vivo studies showed that circSOD2 was induced in neointima SMCs in balloon-injured rat carotid arteries. Importantly, knockdown of circSOD2 attenuated injury-induced neointima formation along with decreased neointimal SMC proliferation. CONCLUSIONS CircSOD2 is a novel regulator mediating SMC proliferation and neointima formation following vascular injury. Therefore, circSOD2 could be a potential therapeutic target for inhibiting the development of proliferative vascular diseases.
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Affiliation(s)
- Xiaohan Mei
- Departments of Surgery (X.M., X.-B.C., S.-Y.C.), University of Missouri School of Medicine, Columbia.,Department of Physiology and Pharmacology (X.M., S.-Y.C.), University of Georgia, Athens
| | - Xiao-Bing Cui
- Departments of Surgery (X.M., X.-B.C., S.-Y.C.), University of Missouri School of Medicine, Columbia
| | - Yiran Li
- Institute of Bioinformatics (Y.L.), University of Georgia, Athens
| | - Shi-You Chen
- Departments of Surgery (X.M., X.-B.C., S.-Y.C.), University of Missouri School of Medicine, Columbia.,Medical Pharmacology and Physiology (S.-Y.C.), University of Missouri School of Medicine, Columbia.,Department of Physiology and Pharmacology (X.M., S.-Y.C.), University of Georgia, Athens
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Wang ZH, Li Y, Zhang P, Xiang X, Wei XS, Niu YR, Ye LL, Peng WB, Zhang SY, Xue QQ, Zhou Q. Development and Validation of a Prognostic Autophagy-Related Gene Pair Index Related to Tumor-Infiltrating Lymphocytes in Early-Stage Lung Adenocarcinoma. Front Cell Dev Biol 2021; 9:719011. [PMID: 34616731 PMCID: PMC8488280 DOI: 10.3389/fcell.2021.719011] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 07/30/2021] [Indexed: 01/07/2023] Open
Abstract
The role of autophagy in lung cancer is context-dependent and complex. Recent studies have reported the important role of autophagy in tumor immune escape. However, the association between autophagy and tumor-infiltrating lymphocytes (TILs) in early-stage lung adenocarcinoma (LUAD) remains unclear. In this study, we aimed to develop and validate the autophagy-related gene pair index (ATGPI) and autophagy clinical prognostic index (ACPI) in multiple LUAD cohorts, including The Cancer Genome Atlas (TCGA) cohort, Gene Expression Omnibus cohorts, and one cohort from Union Hospital, Wuhan (UH cohort), using a Cox proportional hazards regression model with the least absolute shrinkage and selection operator. Multivariate Cox regression analysis demonstrated that there was a significant difference in overall survival (OS) between patients with high and low ATGPI in the testing [hazard ratio (HR) = 1.97; P < 0.001] and TCGA validation (HR = 2.25; P < 0.001) cohorts. Time-dependent receiver operating characteristic curve analysis was also performed. We found that high ATGPI could accurately identify patients with early-stage LUAD with shorter OS, with the areas under the curve of 0.703 and 0.676 in the testing and TCGA validation cohorts, respectively. Concordance index (C-index) was used to evaluate the efficiency of ATGPI and ACPI. The C-index of ACPI was higher than that of ATGPI in the testing (0.71 vs. 0.66; P < 0.001), TCGA validation (0.69 vs. 0.65; P = 0.028), and UH (0.80 vs. 0.70; P = 0.015) cohorts. TIL analysis demonstrated that the proportions of tumor-infiltrating CD4+ T cells were lower in the high-ATGPI group than in the low-ATGPI group in both the TCGA validation and UH cohorts. These results indicate the potential clinical use of ATG signatures which are associated with TILs, in identifying patients with early-stage LUAD with different OS.
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Affiliation(s)
- Zi-Hao Wang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yu Li
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pei Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xuan Xiang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Shan Wei
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi-Ran Niu
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin-Lin Ye
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wen-Bei Peng
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Si-Yu Zhang
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qian-Qian Xue
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qiong Zhou
- Department of Respiratory and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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113
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HIPK3 Circular RNA Promotes Metastases of HCC Through Sponging miR-338-3p to Induce ZEB2 Expression. Dig Dis Sci 2021; 66:3439-3447. [PMID: 33247421 DOI: 10.1007/s10620-020-06688-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 10/21/2020] [Indexed: 01/09/2023]
Abstract
BACKGROUND Upregulation of circHIPK3 has been observed in several kinds of malignancies. However, the mechanisms of circHIPK3 in HCC metastases remains unclear. We investigated the role and the mechanisms of circHIPK3 in the development of HCC. METHODS HCC tissues and paired adjacent non-tumor tissues of surgical patients were used to evaluate circHIPK3 expression. A series of biological experiments had been taken to evaluate the pro-metastatic ability of circHIPK3 during HCC development in vitro and in vivo. The potential mechanisms of circHIPK3 in HCC development were identified by RT-qPCR, Western blot, RIP, and luciferase reporter assays. RESULTS CircHIPK3 expression is significantly upregulated during HCC development. Overexpression of circHIPK3 promotes cell migration, invasion, and metastases in vitro and in vivo. CircHIPK3 promoted HCC metastases by sponging miR-338-3p to regulate EMT-associated proteins E-cadherin, vimentin, and ZEB2 expression. CONCLUSION CircHIPK3 plays a regulatory role in metastatic HCC by sponging miR-338-3p to induce ZEB2 expression, thus promoting EMT procession.
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114
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Dong H, Zhou J, Cheng Y, Wang M, Wang S, Xu H. Biogenesis, Functions, and Role of CircRNAs in Lung Cancer. Cancer Manag Res 2021; 13:6651-6671. [PMID: 34466035 PMCID: PMC8403226 DOI: 10.2147/cmar.s324812] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/09/2021] [Indexed: 12/24/2022] Open
Abstract
CircRNAs, a class of endogenous non-coding RNAs with closed-loop structures, have attracted increasing attention because of their good stability, high specificity of tissue expression, long half-life, and highly conserved sequence. CircRNAs have multiple biological functions, including miRNA sponge, transcription regulator, protein translation, interaction with protein, RNA maturation, and so on. These functions indicate the important role of circRNAs in tumorigenesis and malignant progression and their potential as potent diagnostic biomarkers and therapeutic molecules. In recent years, an increasing body of evidence suggests that circRNAs play a crucial role in proliferation, migration, invasion, and apoptosis of lung cancer cells. Therefore, circRNAs have gradually become a research focus in the diagnosis and treatment of lung cancer patients. This review summarizes the classification, biogenesis, and function of circRNAs, and discusses the role of circRNAs in the diagnosis, prognosis, and treatment of lung cancer patients.
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Affiliation(s)
- Huanhuan Dong
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Junliang Zhou
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Yue Cheng
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Meiqi Wang
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Shuqing Wang
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
| | - Hui Xu
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150081, People's Republic of China
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115
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Bai J, Deng J, Han Z, Cui Y, He R, Gu Y, Zhang Q. CircRNA_0026344 via exosomal miR-21 regulation of Smad7 is involved in aberrant cross-talk of epithelium-fibroblasts during cigarette smoke-induced pulmonary fibrosis. Toxicol Lett 2021; 347:58-66. [PMID: 33961985 DOI: 10.1016/j.toxlet.2021.04.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/09/2021] [Accepted: 04/26/2021] [Indexed: 01/15/2023]
Abstract
For smoking-induced pulmonary fibrosis (PF), a serious disease endangering human health, there is no effective clinical treatment. Aberrant epithelium-fibroblast cross-talk is involved in formation of the excessive extracellular matrix (ECM) that contributes to PF. Circular RNAs have been associated with various pulmonary diseases. However, the mechanisms of circRNAs in PF are not clear. Herein, our goals were to investigate the involvement of circRNA_0026344 in the aberrant epithelium-fibroblast cross-talk induced by cigarette smoke (CS) and to define its mechanism. Chronic exposure (16 weeks) of BALB/c mice to 500 mg/m3 CS induced lung injury and fibrosis in lung tissues. From HBE cells, circRNA_0026344 was selected by microarray analysis and verified as that with the most severe down-regulation caused by cigarette smoke extract (CSE). The regulatory relationship between circRNA_0026344 and miR-21 was assessed by use of bioinformatics, RNA pull-down assays, and qRT-PCR. We found that miR-21 binding sites were present in circRNA_0026344 and, in HBE cells, it could act as a sponge for miR-21. When pcDNA3.0-circRNA_0026344, a high expression plasmid of circRNA_0026344, was transfected into HBE cells, the CSE-induced up-regulation of miR-21 levels was reversed. In MRC-5 cells, HBE-secreted exosomal miR-21 decreased levels of Smad7 and activated the TGF-β1/Smad3 pathway. By using the Targetscan database, the presence of species-conserved miR-21 binding sites in the Smad7 3'UTR region were predicted. We verified, by use of a luciferase reporter gene, that miR-21 bound to the 3'UTR region of Smad7 mRNA to inhibit its transcription. In conclusion, the results reveal that, in CS-induced pulmonary fibrosis, circRNA_0026344, via exosomal miR-21 regulation of Smad7, is involved in aberrant cross-talk of epithelium-fibroblasts. These results will be useful for the discovery of early biomarkers and for providing therapeutic targets for smoking-induced pulmonary fibrosis.
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Affiliation(s)
- Jun Bai
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Jianjun Deng
- Department of Clinical Laboratory, 404 Hospital of Mianyang, Mianyang, 621000, Sichuan, People's Republic of China
| | - Zhixia Han
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Yan Cui
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Renjiang He
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China
| | - Yuanyun Gu
- Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China.
| | - Qingbi Zhang
- School of Public Health, Southwest Medical University, Luzhou, 646000, Sichuan, People's Republic of China.
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circGLI3 Inhibits Oxidative Stress by Regulating the miR-339-5p/VEGFA Axis in IPEC-J2 Cells. BIOMED RESEARCH INTERNATIONAL 2021; 2021:1086206. [PMID: 34423029 PMCID: PMC8376464 DOI: 10.1155/2021/1086206] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/10/2021] [Accepted: 07/26/2021] [Indexed: 12/11/2022]
Abstract
As a new type of noncoding RNA, circular RNA (circRNA) is stable in cells and not easily degraded. This type of RNA can also competitively bind miRNAs to regulate the expression of their target genes. The role of circRNA in the mechanism of intestinal oxidative stress (OS) in weaned piglets is still unclear. In our research, diquat (DQ) was used to induce OS in small intestinal epithelial cells (IPEC-J2) to construct an OS cell model. Mechanistically, dual luciferase reporter assays, fluorescence in situ hybridization (FISH), and western blotting were performed to confirm that circGLI3 directly sponged miR-339-5p and regulated the expression of VEGFA. Overexpression of circGLI3 promoted IPEC-J2 cell proliferation, increased the proportion of S-phase cells (P < 0.01), and reduced reactive oxygen species (ROS) generation when IPEC-J2 cells were subjected to OS. circGLI3 can increase the activity of glutathione peroxidase (GSH-Px) and the total antioxidant capacity (T-AOC) in IPEC-J2 cells and reduce the malondialdehyde (MDA) content and levels of inflammatory factors. Therefore, overexpression of circGLI3 reduced oxidative damage, whereas miR-339-5p mimic counteracted these effects. We identified a regulatory network composed of circGLI3, miR-339-5p, and VEGFA and verified that circGLI3 regulates VEGFA by directly binding miR-339-5p. The expression of VEGFA affects IPEC-J2 cell proliferation, cell cycle progression, and ROS content and changes the levels of antioxidant enzymes and inflammatory factors. This study reveals the molecular mechanism by which circGLI3 inhibits OS in the intestine of piglets and provides a theoretical basis for further research on the effect of OS on intestinal function.
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117
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Circular RNA circRHOT1 contributes to pathogenesis of non-small cell lung cancer by epigenetically enhancing C-MYC expression through recruiting KAT5. Aging (Albany NY) 2021; 13:20372-20382. [PMID: 34406978 PMCID: PMC8436947 DOI: 10.18632/aging.203417] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/20/2021] [Indexed: 12/25/2022]
Abstract
Non-small cell lung cancer (NSCLC) one of the most prevalent and severe malignancies globally and the molecular mechanisms of NSCLC are poor understood, limiting the development of diagnostic biomarkers and targeted therapies. Circular RNAs (circRNAs) have been identified as a sort of critical regulator in cancer progression. In this study, we identities the epigenetic regulation function of circular RNA circRHOT1 in promoting NSCLC cell proliferation. We found that circRHOT1 were elevated in the clinical tumor tissues relative to that in the peritumor tissues from NSCLC patients. circRHOT1 was up-regulated in human lung cancer cell lines compared with normal human lung epithelial cell line. MTT assays revealed that the silencing of circRHOT1 by siRNA suppressed cell viabilities of NSCLC cells. Colony formation and Edu assays confirmed that circRHOT1 knockdown attenuated NSCLC cell proliferation in vitro. Meanwhile, the depletion of circRHOT1 induced NSCLC cell apoptosis and cell cycle arrest in vitro. Mechanically, the depletion of circRHOT1 remarkably reduced c-MYC mRNA and protein expression in NSCLC cells. Inhibition of circRHOT1 reduced the enrichment of transcription active marker histone H3 lysine 27 acetylation (H3K27ac) and RNA polymerase II on the promoter of c-MYC. RNA pull down analysis showed that circRHOT1 was able to directly interact with acetyltransferase KAT5 in NSCLC cells. In summary, we concluded that circRHOT1 contributed to pathogenesis of NSCLC by epigenetically enhancing c-MYC expression through recruiting KAT5. CircRHOT1 and KAT5 may be used as the potential targets for NSCLC therapy.
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Zhang Y, Jiang J, Zhang J, Shen H, Wang M, Guo Z, Zang X, Shi H, Gao J, Cai H, Fang X, Qian H, Xu W, Zhang X. CircDIDO1 inhibits gastric cancer progression by encoding a novel DIDO1-529aa protein and regulating PRDX2 protein stability. Mol Cancer 2021; 20:101. [PMID: 34384442 PMCID: PMC8359101 DOI: 10.1186/s12943-021-01390-y] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 07/02/2021] [Indexed: 12/19/2022] Open
Abstract
Background Circular RNAs (circRNAs) play important roles in cancer development and progression. The purpose of this study is to identify aberrantly expressed circRNAs in gastric cancer (GC), unravel their roles in GC progression, and provide new targets for GC diagnosis and therapy. Methods Bioinformatic analyses were performed to identify the aberrantly expression of hsa_circ_0061137 (termed as circDIDO1) in GC. Gain- and loss-of-function studies were performed to examine the biological roles of circDIDO1 in GC progression. Tagged RNA affinity purification, mass spectrometry, immunofluorescence, co-immunoprecipitation, and Western blot were used to identify circRNA-interacting and circRNA-encoded proteins. RNA sequencing, qRT-PCR, and Western blot were performed to analyze circRNA-regulated downstream target genes and signaling pathways. Mouse tumor models were used to analyze the effects of circDIDO1 on GC growth and metastasis. Results CircDIDO1 was transcribed from human DIDO1 (death-inducer obliterator 1) gene and formed by back-splicing of exons 2–6 of the linear transcript. circDIDO1 was down-regulated in GC tissues and its low levels were associated with larger tumor size, distal metastasis, and poor prognosis. CircDIDO1 overexpression inhibited while knockdown promoted GC cell proliferation, migration and invasion. CircDIDO1 overexpression suppressed GC growth and metastasis in mouse tumor models. Mechanistically, circDIDO1 encoded a novel 529aa protein that directly interacted with poly ADP-ribose polymerase 1 (PARP1) and inhibited its activity. CircDIDO1 also specifically bound to peroxiredoxin 2 (PRDX2) and promoted RBX1-mediated ubiquitination and degradation of PRDX2, which led to the inactivation of its downstream signaling pathways. Conclusions CircDIDO1 is a new circRNA that has tumor suppressor function in GC and it may serve as a potential prognostic biomarker and therapeutic target for GC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01390-y.
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Affiliation(s)
- Yu Zhang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.,Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210009, Jiangsu, China
| | - Jiajia Jiang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Jiayin Zhang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Han Shen
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.,Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210009, Jiangsu, China
| | - Maoye Wang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Zhen Guo
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Xueyan Zang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Hui Shi
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.,Department of Oncology, Lianyungang Hospital Affiliated To Jiangsu University, Lianyungang, 222000, Jiangsu, China.,Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Hospital of Jiangsu University, Lanzhou, 730000, Gansu, China
| | - Jiayan Gao
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China
| | - Hui Cai
- Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Hospital of Jiangsu University, Lanzhou, 730000, Gansu, China
| | - Xinjian Fang
- Department of Oncology, Lianyungang Hospital Affiliated To Jiangsu University, Lianyungang, 222000, Jiangsu, China
| | - Hui Qian
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China.,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China
| | - Wenrong Xu
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China. .,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China.
| | - Xu Zhang
- Aoyang Cancer Institute, Affiliated Aoyang Hospital of Jiangsu University, Zhangjiagang, 215600, Jiangsu, China. .,Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, 212013, Jiangsu, China. .,Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210009, Jiangsu, China. .,Department of Oncology, Lianyungang Hospital Affiliated To Jiangsu University, Lianyungang, 222000, Jiangsu, China. .,Key Laboratory of Molecular Diagnostics and Precision Medicine for Surgical Oncology in Gansu Province, Gansu Hospital of Jiangsu University, Lanzhou, 730000, Gansu, China.
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Li J, Sun C, Cui H, Sun J, Zhou P. Role of circRNAs in neurodevelopment and neurodegenerative diseases. J Mol Neurosci 2021; 71:1743-1751. [PMID: 34378140 DOI: 10.1007/s12031-021-01882-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 06/01/2021] [Indexed: 12/14/2022]
Abstract
With the rapid development of sequencing technology, scientists have been able to study and acquire a better understanding of non-coding RNAs (ncRNAs). Circular RNAs (circRNAs), a unique class of ncRNAs with a special loop structure, have been found to possess modulatory properties with respect to various biological processes, such as interacting with nucleic acids or proteins. In addition to their tissue-specific expression and high conservation across species, circRNAs are abundant and dynamically expressed in the nervous system, especially in nerve synapse, indicating their potential regulation in synaptic plasticity or neuronal disorders. In this review, we discuss the characteristics of circRNAs and their common biological functions, as well as their significant role in neurodevelopment, drug addiction and neurodegenerative diseases, aiming to guide further disease diagnoses and efficient therapy.
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Affiliation(s)
- Junwei Li
- Department of Anatomy, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Neuroscience, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Chenyou Sun
- Department of Anatomy, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.,Institute of Neuroscience, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Huairui Cui
- Department of Anatomy, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Jinhao Sun
- Department of Anatomy, School of Basic Medical Sciences, Shandong University, Jinan, Shandong, China
| | - Peng Zhou
- Department of Anatomy, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China. .,Institute of Neuroscience, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, China.
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120
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Cao L, Zhou X, Ding X, Gao D. Knockdown of circ‑PVT1 inhibits the progression of lung adenocarcinoma and enhances the sensitivity to cisplatin via the miR‑429/FOXK1 signaling axis. Mol Med Rep 2021; 24:684. [PMID: 34328193 PMCID: PMC8365593 DOI: 10.3892/mmr.2021.12323] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 04/20/2021] [Indexed: 12/19/2022] Open
Abstract
Lung cancer is one of the most prevalent cancers in China, and its incidence and morbidity remain high due to various independent factors. Lung adenocarcinoma (ADC) is the most common type of non‑small cell lung carcinoma. Circular RNA plasmacytoma variant translocation 1 (circ‑PVT1) plays an oncogenic role in various types of cancer, but the specific role of circ‑PVT1 in lung ADC has not yet been reported. In the present study, circ‑PVT1 was knocked down in A549 cells and the cell viability, proliferation, migration and invasion were measured via MTT, colony formation, wound healing and Transwell assays, respectively. Then, the cell viability of A549 cells with circ‑PVT1‑knockdown or ‑overexpression was detected after exposure to cisplatin (DDP). After confirming the associations among circ‑PVT1, microRNA (miR)‑429 and forkhead box k1 (FOXK1) using various tools and assays, the cellular functions of A549 cells treated with combined short hairpin (sh)RNA‑circ‑PVT1 and miR‑429 inhibitor/pcDNA3.1‑FOXK1 were tested again. The expression of circ‑PVT1 was found to be increased in lung ADC cells, and shRNA‑circ‑PVT1 led to decreased cell viability, proliferation, migration and invasion. The expression of circ‑PVT1 was higher in A549/DDP cells than that in A549 cells, and the activity of caspase‑3 was also activated by DDP in A549/DDP cells transfected with shRNA‑circ‑PVT1, whereas it was inactivated by DDP in A549 cells transfected with circ‑PVT1 overexpression plasmid. Furthermore, the decreased cell viability, proliferation, invasion and migration induced by shRNA‑circ‑PVT1 could be abated by transfection with miR‑429 inhibitor and pcDNA3.1‑FOXK1. In conclusion, interference of circ‑PVT1 inhibits the progression of lung ADC and enhances its sensitivity to DDP via miR‑429/FOXK1, which may provide a theoretical basis for the use of novel targets in the treatment of lung ADC.
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Affiliation(s)
- Limin Cao
- Department of Respiratory Medicine, The Second People's Hospital of Lianyungang, Lianyungang, Jiangsu 222023, P.R. China
| | - Xuefeng Zhou
- Department of Oncology, The Affiliated Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
| | - Xi Ding
- Department of Pharmacy, The Affiliated Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
| | - Dongyun Gao
- Department of Oncology, The Affiliated Hospital of Nantong University, Dongtai, Jiangsu 224200, P.R. China
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Katopodi T, Petanidis S, Domvri K, Zarogoulidis P, Anestakis D, Charalampidis C, Tsavlis D, Bai C, Huang H, Freitag L, Hohenforst-Schmidt W, Matthaios D, Porpodis K. Kras-driven intratumoral heterogeneity triggers infiltration of M2 polarized macrophages via the circHIPK3/PTK2 immunosuppressive circuit. Sci Rep 2021; 11:15455. [PMID: 34326381 PMCID: PMC8322174 DOI: 10.1038/s41598-021-94671-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 07/15/2021] [Indexed: 02/07/2023] Open
Abstract
Intratumoral heterogeneity in lung cancer is essential for evasion of immune surveillance by tumor cells and establishment of immunosuppression. Gathering data reveal that circular RNAs (circRNAs), play a role in the pathogenesis and progression of lung cancer. Particularly Kras-driven circRNA signaling triggers infiltration of myeloid-associated tumor macrophages in lung tumor microenvironment thus establishing immune deregulation, and immunosuppression but the exact pathogenic mechanism is still unknown. In this study, we investigate the role of oncogenic Kras signaling in circRNA-related immunosuppression and its involvement in tumoral chemoresistance. The expression pattern of circRNAs HIPK3 and PTK2 was determined using quantitative polymerase chain reaction (qPCR) in lung cancer patient samples and cell lines. Apoptosis was analyzed by Annexin V/PI staining and FACS detection. M2 macrophage polarization and MDSC subset analysis (Gr1-/CD11b-, Gr1-/CD11b+) were determined by flow cytometry. Tumor growth and metastatic potential were determined in vivo in C57BL/6 mice. Findings reveal intra-epithelial CD163+/CD206+ M2 macrophages to drive Kras immunosuppressive chemoresistance through myeloid differentiation. In particular, monocytic MDSC subsets Gr1-/CD11b-, Gr1-/CD11b+ triggered an M2-dependent immune response, creating an immunosuppressive tumor-promoting network via circHIPK3/PTK2 enrichment. Specifically, upregulation of exosomal cicHIPK3/PTK2 expression prompted Kras-driven intratumoral heterogeneity and guided lymph node metastasis in C57BL/6 mice. Consequent co-inhibition of circPTK2/M2 macrophage signaling suppressed lung tumor growth along with metastatic potential and prolonged survival in vivo. Taken together, these results demonstrate the key role of myeloid-associated macrophages in sustaining lung immunosuppressive neoplasia through circRNA regulation and represent a potential therapeutic target for clinical intervention in metastatic lung cancer.
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Affiliation(s)
- Theodora Katopodi
- Department of Medicine, Laboratory of Medical Biology and Genetics, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Savvas Petanidis
- Department of Medicine, Laboratory of Medical Biology and Genetics, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece. .,Department of Pulmonology, I.M. Sechenov First Moscow State Medical University, Moscow, 119992, Russian Federation.
| | - Kalliopi Domvri
- Pulmonary Department-Oncology Unit, "G. Papanikolaou" General Hospital, Aristotle University of Thessaloniki, 57010, Thessaloniki, Greece
| | - Paul Zarogoulidis
- Third Department of Surgery, "AHEPA" University Hospital, Aristotle University of Thessaloniki, 55236, Thessaloniki, Greece
| | - Doxakis Anestakis
- Department of Anatomy, Medical School, University of Cyprus, 1678, Nicosia, Cyprus
| | | | - Drosos Tsavlis
- Department of Medicine, Laboratory of Experimental Physiology, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Chong Bai
- Department of Respiratory and Critical Care Medicine, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Haidong Huang
- Department of Respiratory and Critical Care Medicine, Changhai Hospital, Second Military Medical University, Shanghai, 200433, China
| | - Lutz Freitag
- Department of Pulmonology, University Hospital Zurich, 8091, Zurich, Switzerland
| | | | | | - Konstantinos Porpodis
- Pulmonary Department-Oncology Unit, "G. Papanikolaou" General Hospital, Aristotle University of Thessaloniki, 57010, Thessaloniki, Greece
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Long Noncoding RNA MALAT1 Interacts with miR-124-3p to Modulate Osteosarcoma Progression by Targeting SphK1. JOURNAL OF ONCOLOGY 2021; 2021:8390165. [PMID: 34373692 PMCID: PMC8349266 DOI: 10.1155/2021/8390165] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 07/06/2021] [Accepted: 07/21/2021] [Indexed: 01/17/2023]
Abstract
Introduction Long noncoding RNAs (lncRNAs) have been implicated in a variety of biological functions, including tumor proliferation, apoptosis, progression, and metastasis. lncRNA metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is overexpressed in various cancers, as well as osteosarcoma (OS); however, its underlying mechanism in OS is poorly understood. This investigation aims to elucidate the mechanisms of MALAT1 in OS proliferation and migration and to provide theoretical grounding for further targeted therapy in OS. Methods In the present study, we applied qRT-PCR to assess the MALAT1 expression in OS tissues and cell lines. The effects of MALAT1 and miR-124-3p on OS cell proliferation and migration were studied by CCK-8 and scratch assays. Cell cycle and apoptosis were tested using a flow cytometer. The competing relationship between MALAT1 and miR-124-3p was confirmed by dual-luciferase reporter assay. Results MALAT1 was overexpressed in OS cell lines and tissue specimens, and knockdown of MALAT1 significantly inhibited cell proliferation and migration and increased cell apoptosis and the percentage of G0/G1 phase. Furthermore, MALAT1 could directly bind to miR-124-3p and inhibit miR-124-3p expression. Moreover, MALAT1 overexpression significantly relieved the inhibition on OS cell proliferation mediated by miR-124-3p overexpression, which involved the derepression of sphingosine kinase 1 (SphK1). Conclusions We propose that lncRNA MALAT1 interacts with miR-124-3p to modulate OS progression by targeting SphK1. Hence, we identified a novel MALAT1/miR-124-3p/SphK1 signaling pathway in the regulation of OS biological behaviors.
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Chen HH, Zhang TN, Wu QJ, Huang XM, Zhao YH. Circular RNAs in Lung Cancer: Recent Advances and Future Perspectives. Front Oncol 2021; 11:664290. [PMID: 34295810 PMCID: PMC8290158 DOI: 10.3389/fonc.2021.664290] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 06/21/2021] [Indexed: 12/13/2022] Open
Abstract
Globally, lung cancer is the most commonly diagnosed cancer and carries with it the greatest mortality rate, with 5-year survival rates varying from 4–17% depending on stage and geographical differences. For decades, researchers have studied disease mechanisms, occurrence rates and disease development, however, the mechanisms underlying disease progression are not yet fully elucidated, thus an increased understanding of disease pathogenesis is key to developing new strategies towards specific disease diagnoses and targeted treatments. Circular RNAs (circRNAs) are a class of non-coding RNA widely expressed in eukaryotic cells, and participate in various biological processes implicated in human disease. Recent studies have indicated that circRNAs both positively and negatively regulate lung cancer cell proliferation, migration, invasion and apoptosis. Additionally, circRNAs could be promising biomarkers and targets for lung cancer therapies. This review systematically highlights recent advances in circRNA regulatory roles in lung cancer, and sheds light on their use as potential biomarkers and treatment targets for this disease.
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Affiliation(s)
- Huan-Huan Chen
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Oncology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Tie-Ning Zhang
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China.,Department of Pediatric, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qi-Jun Wu
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xin-Mei Huang
- Department of Endocrinology, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Yu-Hong Zhao
- Department of Clinical Epidemiology, Shengjing Hospital of China Medical University, Shenyang, China.,Clinical Research Center, Shengjing Hospital of China Medical University, Shenyang, China
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Li S, Liu J, Liu S, Jiao W, Wang X. Mesenchymal stem cell-derived extracellular vesicles prevent the development of osteoarthritis via the circHIPK3/miR-124-3p/MYH9 axis. J Nanobiotechnology 2021; 19:194. [PMID: 34193158 PMCID: PMC8244143 DOI: 10.1186/s12951-021-00940-2] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Accepted: 06/20/2021] [Indexed: 12/16/2022] Open
Abstract
Background Extracellular vesicles (EVs) secreted by mesenchymal stem cells (MSCs) may play a vital role in a variety of biological processes, including cartilage regeneration. However, few studies reported their potential in the development of osteoarthritis (OA) previously. In this study, we explored the biological roles and underlying mechanism of MSCs-EVs in OA. Results Co-culture experiments revealed that MSCs-EVs could promote the expression of collagen type II alpha 1 chain (COL2A1), SRY-box transcription factor 9 (SOX9) and Aggrecan while negatively regulate the expression of chondrocyte hypertrophy markers matrix metallopeptidase 13 (MMP-13) and RUNX family transcription factor 2 (Runx2) in mouse chondrocytes in the OA model. Besides, the results of cell experiments indicated that MSCs-EVs could notably weaken the suppression of chondrocyte proliferation, migration and the promotion of chondrocyte apoptosis via interleukin1β (IL-1β) induction. In addition, MSCs-circHIPK3-EVs (EVs derived from MSCs overexpressing circHIPK3) considerably improved IL-1β-induced chondrocyte injury. Mechanistically, we elucidated that circHIPK3 could directly bind to miR-124-3p and subsequently elevate the expression of the target gene MYH9. Conclusion The findings in our study demonstrated that EVs-circHIPK3 participated in MSCs-EVs-mediated chondrocyte proliferation and migration induction and in chondrocyte apoptosis inhibition via the miR-124-3p/MYH9 axis. This offers a promising novel cell-free therapy for treating OA. Graphic abstract ![]()
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Affiliation(s)
- Shenglong Li
- Department of Tissue Engineering, Center of 3D Printing & Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China.,Department of Bone and Soft Tissue Tumor Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, 110042, Liaoning Province, China
| | - Jie Liu
- Department of Prosthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, 110002, China
| | - Siyu Liu
- Department of Tissue Engineering, Center of 3D Printing & Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China
| | - Weijie Jiao
- Department of Tissue Engineering, Center of 3D Printing & Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China
| | - Xiaohong Wang
- Department of Tissue Engineering, Center of 3D Printing & Organ Manufacturing, School of Fundamental Sciences, China Medical University (CMU), No. 77 Puhe Road, Shenyang North New Area, Shenyang, 110122, China. .,Center of Organ Manufacturing, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, China.
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125
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Circular RNA circHIPK3 modulates prostate cancer progression via targeting miR-448/MTDH signaling. Clin Transl Oncol 2021; 23:2497-2506. [PMID: 34142340 DOI: 10.1007/s12094-021-02650-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 05/20/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE Prostate cancer (PCa) is one of the most diagnosed cancers in men worldwide. Several studies have identified that circular RNAs (circRNAs) have a crucial impact on the biological processes in PCa. Therefore, it is necessary to study the molecular mechanism of circRNAs in tumor progression and metastasis. METHODS RNA interference was used to decrease circHIPK3 and MTDH expression. Overexpression vector was used to increase circHIPK3 and MTDH expression. Luciferase reporter assay were used to detect the relationship between circHIPK3 and miR-448 or between miR-448 and MTDH. MTT assay, colony formation assay and transwell assay were used to measure proliferation and migration of PCa cells. RESULTS Circular RNA circHIPK3 was significantly increased in PCa tissues and cell lines. And overexpression of circHIPK3 promoted the migration, proliferation, and invasion of PC-3 and 22Rv1 cells, while knockdown of circHIPK3 markedly repressed the above-mentioned series of biological processes. Furthermore, circHIPK3 promoted metadherin (MTDH) expression by sponging miR-448. In vivo experiments, it was also found that overexpression of circHIPK3 significantly promoted tumor growth. CONCLUSIONS Our research shows that circHIPK3 plays a carcinogenic effect in PCa by regulating the miR-448/MTDH axis, indicating that circHIPK3 may be a potential therapeutic target for PCa.
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Ghafouri-Fard S, Dinger ME, Maleki P, Taheri M, Hajiesmaeili M. Emerging role of circular RNAs in the pathobiology of lung cancer. Biomed Pharmacother 2021; 141:111805. [PMID: 34120067 DOI: 10.1016/j.biopha.2021.111805] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/29/2021] [Accepted: 06/07/2021] [Indexed: 12/30/2022] Open
Abstract
Lung cancer is among the leading causes of cancer mortality and incidence in both sexes. Different classes of transcripts have been proposed as molecular markers in this type of cancer. Circular RNAs (circRNAs) are a group of transcripts with circular enclosed and stable configuration. These transcripts are stable in the blood, thus can be used as markers for detection of disorders. Moreover, dysregulation of circRNAs in the affected tissues of patients with different cancers shows their possible roles in the carcinogenesis. Several circRNAs including circPRKC1, circFGFR1, hsa-circ-0020123 and circTP63 have been found to be up-regulated in lung cancer samples. Meanwhile, cir-ITCH, hsa_circ_100395, hsa_circ_0033155, circRNF13, circNOL10, circ-UBR5, circPTK2 and circCRIM1 have been shown to be down-regulated in lung cancer tissues compared with noncancerous counterparts. Finally, prognostic values of circPRKC1, circFGFR1, has-circ-00120123, circTP63, circ_0067934, CDR1as, hsa_circRN_103809 and some other circRNAs have been appraised in lung cancer. In the current manuscript, we describe the impact and utility of circRNAs in the pathology of lung cancer.
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Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marcel E Dinger
- School of Biotechnology and Biomolecular Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Parichehr Maleki
- Department of Molecular Medicine, Institute for Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran
| | - Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Mohammadreza Hajiesmaeili
- Critical Care Quality Improvement Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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127
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Zhao WX, Tang YL, Wang WH, Bao MW. Up-regulation of circ_0000353 impedes the proliferation and metastasis of non-small cell lung cancer cells via adsorbing miR-411-5p and increasing forkhead box O1. Cancer Biomark 2021; 29:25-37. [PMID: 32568175 DOI: 10.3233/cbm-190812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND Non-small cell lung cancer (NSCLC) is the most common malignant tumor worldwide. This work focuses on investigating the role of circ_0000353 in NSCLC and its potential mechanism of action. METHODS The expression levels of circ_0000353 and miR-411-5p in NSCLC and their matched normal lung tissues were detected by real-time PCR (RT-PCR). The correlation between the circ_0000353 expression and the clinicopathological parameters of NSCLC patients was also analyzed. CCK-8, BrdU and colony formation assays were adopted to detect the role of circ_0000353 in the proliferation of NSCLC cells. The metastasis of NSCLC cells was measured by Transwell assay. The dual-luciferase reporter gene assay was used to confirm the targeting relationship between circ_0000353 and miR-411-5p. The expression level of FOXO1 was detected by western blot. RESULTS Circ_0000353 was significantly down-regulated in NSCLC tissues and cell lines, and the decreased expression was significantly linked to the increased clinical stage, larger tumor volume, and metastasis. The circ_0000353 over-expression restrained the proliferation, migration, and invasion of NSCLC cells in vitro. Additionally, up-regulation of miR-411-5p was observed in NSCLC tissues and cell lines, and luciferase assay and RT-PCR assay showed that circ_0000353 over-expression could target miR-411-5p and suppress its expression. Further studies confirmed that circ_0000353 and miR-411-5p modulated the FOXO1 expression. CONCLUSION Circ_0000353 repressed the proliferation, migration, and invasion of NSCLC cells via inhibition of miR-411-5p and up-regulation of FOXO1.
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Affiliation(s)
- Wei-Xin Zhao
- Department of Radiation Oncology, Shanghai Cancer Center, Fudan University, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Thoracic Oncology Fudan University, Shanghai, China.,Department of Radiation Oncology, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Yan-Lei Tang
- Department of Chest Surgery, Minhang Hospital, Fudan University, Shanghai, China.,Department of Radiation Oncology, Shanghai Cancer Center, Fudan University, Shanghai, China
| | - Wei-Hua Wang
- Department of Chest Surgery, Minhang Hospital, Fudan University, Shanghai, China
| | - Min-Wei Bao
- Department of Thoracic Surgery, Shanghai Pulmonary Hospital, Affiliated to Tongji University, Shanghai, China
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Xu Q, Cheng D, Li G, Liu Y, Li P, Sun W, Ma D, Ni C. CircHIPK3 regulates pulmonary fibrosis by facilitating glycolysis in miR-30a-3p/FOXK2-dependent manner. Int J Biol Sci 2021; 17:2294-2307. [PMID: 34239356 PMCID: PMC8241722 DOI: 10.7150/ijbs.57915] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 05/22/2021] [Indexed: 01/19/2023] Open
Abstract
Pulmonary fibrosis develops when myofibroblasts and extracellular matrix excessively accumulate in the injured lung, but what drives fibrosis is not fully understood. Glycolysis has been linked to cell growth and proliferation, and several studies have shown enhanced glycolysis promotes pulmonary fibrosis. However, detailed studies describing this switch remain limited. Here, we identified that TGF-β1 effectively increased the expression of circHIPK3 in lung fibroblasts, and circHIPK3 inhibition attenuated the activation, proliferation, and glycolysis of fibroblasts in vitro. Dual-luciferase reporter gene assays, RNA immunoprecipitation (RIP), and RNA pull-down assays showed that circHIPK3 could function as a sponge of miR-30a-3p and inhibit its expression. Furthermore, FOXK2, a driver transcription factor of glycolysis, was identified to be a direct target of miR-30a-3p. Mechanistically, circHIPK3 could enhance the expression of FOXK2 via sponging miR-30a-3p, thereby facilitating fibroblast glycolysis and activation. Besides, miR-30a-3p overexpression or FOXK2 knockdown blocked fibroblast activation induced by TGF-β1 and abrogated the profibrotic effects of circHIPK3. Moreover, circHIPK3 and miR-30a-3p were also dysregulated in fibrotic murine lung tissues induced by silica. Adeno-associated virus (AAV)-mediated circHIPK3 silence or miR-30a-3p overexpression alleviated silica-induced pulmonary fibrosis in vivo. In conclusion, our results identified circHIPK3/miR-30a-3p/FOXK2 regulatory pathway as an important glycolysis cascade in pulmonary fibrosis.
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Affiliation(s)
- Qi Xu
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Demin Cheng
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Guanru Li
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Yi Liu
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Ping Li
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Wenqing Sun
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Dongyu Ma
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - Chunhui Ni
- Center for Global Health, Key Laboratory of Modern Toxicology of Ministry of Education, Department of Occupational Medical and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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Wang Y, Ren F, Sun D, Liu J, Liu B, He Y, Pang S, Shi B, Zhou F, Yao L, Lang Y, Xu S, Wang J. CircKEAP1 Suppresses the Progression of Lung Adenocarcinoma via the miR-141-3p/KEAP1/NRF2 Axis. Front Oncol 2021; 11:672586. [PMID: 34136401 PMCID: PMC8200847 DOI: 10.3389/fonc.2021.672586] [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: 03/02/2021] [Accepted: 05/06/2021] [Indexed: 12/30/2022] Open
Abstract
Background Lung cancer is the leading cause of death from cancer, and lung adenocarcinoma (LUAD) is the most common form. Despite the great advances that has been made in the diagnosis and treatment for LUAD, the pathogenesis of LUAD remains unclear. In this study, we aimed to identify the function of circKEAP1 derived from the exon of KEAP1 in LUAD. Methods The expression profiles of circRNAs in LUAD tissues and adjacent non-tumor tissues were analyzed by Agilent Arraystar Human CircRNA microarray. The levels and prognostic values of circKEAP1 in tissues and cancer cell lines were determined by quantitative real-time PCR (qRT-PCR). Subsequently, the effects of circKEAP1 on tumor growth were investigated by functional experiments in vitro and in vivo. Mechanistically, the dual luciferase reporter assay, RNA pull-down, and RNA immunoprecipitation experiments were performed to confirm the interaction between circKEAP1 and miR-141-3p in LUAD. Results We found circKEAP1 was significantly downregulated in LUAD tissues and repressed tumor growth both in vitro and in vivo. Mechanistically, circKEAP1 competitively binds to miR-141-3p and relive miR-141-3p repression for its host gene, which activated the KEAP1/NRF2 signal pathway, and finally suppresses the tumor progress. Our findings suggest that circKEAP1 inhibits LUAD progression through circKEAP1/miR-141-3p/KEAP1 axis and it may serve as a novel method for the treatment of LUAD.
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Affiliation(s)
- Yanbo Wang
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Fenghai Ren
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Dawei Sun
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Jing Liu
- Department of Gastroenterology and Hepatology, The 2nd Affiliated Hospital of Harbin Medical University, Harbin, China
| | - BenKun Liu
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - YunLong He
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Sainan Pang
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - BoWen Shi
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - FuCheng Zhou
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - Lei Yao
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - YaoGuo Lang
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - ShiDong Xu
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
| | - JunFeng Wang
- Department of Thoracic Surgery, Harbin Medical University Cancer Hospital, Harbin, China
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Zhang Y, Wang Y. Circular RNAs in Hepatocellular Carcinoma: Emerging Functions to Clinical Significances. Front Oncol 2021; 11:667428. [PMID: 34055634 PMCID: PMC8160296 DOI: 10.3389/fonc.2021.667428] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Accepted: 04/26/2021] [Indexed: 12/12/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is the most common primary cancer of the liver and carries high morbidity and mortality. Diagnosing HCC at an early stage is challenging. Therefore, finding new, highly sensitive and specific diagnostic biomarkers for the diagnosis and prognosis of HCC patients is extremely important. Circular RNAs (circRNAs) are a class of non-coding RNAs with covalently closed loop structures. They are characterized by remarkable stability, long half-life, abundance and evolutionary conservation. Recent studies have shown that many circRNAs are expressed aberrantly in HCC tissues and have important regulatory roles during the development and progression of HCC. Hence, circRNAs are promising biomarkers for the diagnosis and prognosis of HCC. This review: (i) summarizes the biogenesis, categories, and functions of circRNAs; (ii) focuses on current progress of dysregulated expression of circRNAs in HCC with regard to regulation of the tumor hallmarks, “stemness” of cancer cells, and immunotherapy; (iii) highlights circRNAs as potential biomarkers and therapeutic targets for HCC; and (iv) discusses some of the challenges, questions and future perspectives of circRNAs research in HCC.
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Affiliation(s)
- Yucheng Zhang
- Scientific Research Center, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Yali Wang
- Department of Blood Transfusion, China-Japan Union Hospital of Jilin University, Changchun, China
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131
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Fu Y, Sun H. Biogenesis, cellular effects, and biomarker value of circHIPK3. Cancer Cell Int 2021; 21:256. [PMID: 33975598 PMCID: PMC8111742 DOI: 10.1186/s12935-021-01956-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Accepted: 04/27/2021] [Indexed: 12/12/2022] Open
Abstract
Competing endogenous RNAs (ceRNAs) can indirectly regulate gene expression by competitively binding to microRNA(miRNA) through miRNA response elements (MREs) to affect miRNA-induced gene regulation, which is of great biological significance. Among them, circular RNA (circRNA) has become a hotspot due to its highest binding capacity. A specific circRNA discussed in this review, circHIPK3, has been studied for its biological characteristics, function, cellular effects and its relationship with tumors and various diseases. Here, we review the recent researches about circHIPK3 in detail and aim to elucidate accurate conclusions from them. These circHIPK3-miRNAs-mRNA pathways will further advance the application of circHIPK3 in diseases development, early diagnosis and gene targeting therapy.
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Affiliation(s)
- Yihan Fu
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, China
| | - Hong Sun
- Obstetrics and Gynecology Hospital, Fudan University, Shanghai, China.
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Ni W, Jiang C, Wu Y, Zhang H, Wang L, Yik JHN, Haudenschild DR, Fan S, Shen S, Hu Z. CircSLC7A2 protects against osteoarthritis through inhibition of the miR-4498/TIMP3 axis. Cell Prolif 2021; 54:e13047. [PMID: 33960555 PMCID: PMC8168424 DOI: 10.1111/cpr.13047] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 04/01/2021] [Accepted: 04/12/2021] [Indexed: 12/13/2022] Open
Abstract
Objectives Circular RNAs (circRNAs) are noncoding RNAs that compete against other endogenous RNA species, such as microRNAs, and have been implicated in many diseases. In this study, we investigated the role of a new circRNA (circSLC7A2) in osteoarthritis (OA). Materials and Methods The relative expression of circSLC7A2 was significantly lower in OA tissues than it was in matched controls, as shown by real‐time quantitative polymerase chain reaction (RT‐qPCR). Western blotting, RT‐qPCR and immunofluorescence experiments were employed to evaluate the roles of circSLC7A2, miR‐4498 and TIMP3. The in vivo role and mechanism of circSLC7A2 were also conformed in a mouse model. Results circSLC7A2 was decreased in OA model and the circularization of circSLC7A2 was regulated by FUS. Loss of circSLC7A2 reduced the sponge of miR‐4498 and further inhibited the expression of TIMP3, subsequently leading to an inflammatory response. We further determined that miR‐4498 inhibitor reversed circSLC7A2‐knockdown‐induced OA phenotypes. Intra‐articular injection of circSLC7A2 alleviated in vivo OA progression in a mouse model of anterior cruciate ligament transection (ACLT). Conclusions The circSLC7A2/miR‐4498/TIMP3 axis of chondrocytes catabolism and anabolism plays a critical role in OA development. Our results suggest that circSLC7A2 may serve as a new therapeutic target for osteoarthritis.
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Affiliation(s)
- Weiyu Ni
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Chao Jiang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Yizheng Wu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Haitao Zhang
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Lili Wang
- School of Statistics and Mathematics, Zhejiang Gongshang University, Hangzhou, PR China
| | - Jasper H N Yik
- Ellison Musculoskeletal Research Center, Department of Orthopaedic Surgery, University of California System, Davis, CA, USA
| | - Dominik R Haudenschild
- Ellison Musculoskeletal Research Center, Department of Orthopaedic Surgery, University of California System, Davis, CA, USA
| | - Shunwu Fan
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Shuying Shen
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
| | - Ziang Hu
- Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Musculoskeletal System Degeneration and Regeneration Translational Research of Zhejiang Province, Hangzhou, China
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Jiang Y, Liu H, Yu H, Zhou Y, Zhang J, Xin W, Li Y, He S, Ma C, Zheng X, Zhang L, Zhao X, Wu B, Jiang C, Zhu D. Circular RNA Calm4 Regulates Hypoxia-Induced Pulmonary Arterial Smooth Muscle Cells Pyroptosis via the Circ-Calm4/miR-124-3p/PDCD6 Axis. Arterioscler Thromb Vasc Biol 2021; 41:1675-1693. [PMID: 33657879 PMCID: PMC8057524 DOI: 10.1161/atvbaha.120.315525] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 02/10/2021] [Indexed: 12/30/2022]
Abstract
[Figure: see text].
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MESH Headings
- Animals
- Apoptosis Regulatory Proteins/genetics
- Apoptosis Regulatory Proteins/metabolism
- Calcium-Binding Proteins/genetics
- Calcium-Binding Proteins/metabolism
- Cells, Cultured
- Disease Models, Animal
- Hypertension, Pulmonary/genetics
- Hypertension, Pulmonary/metabolism
- Hypertension, Pulmonary/pathology
- Hypertension, Pulmonary/physiopathology
- Male
- Mice, Inbred C57BL
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/physiopathology
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Pulmonary Artery/metabolism
- Pulmonary Artery/pathology
- Pulmonary Artery/physiopathology
- Pyroptosis
- RNA, Circular/genetics
- RNA, Circular/metabolism
- Signal Transduction
- Mice
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Affiliation(s)
- Yuan Jiang
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Huiyu Liu
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Hang Yu
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Yang Zhou
- Department of Medical Oncology, The Third Affiliated Hospital of Harbin Medical University, China (Y.Z.)
| | - Junting Zhang
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Wei Xin
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Yiying Li
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Siyu He
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Cui Ma
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Xiaodong Zheng
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Lixin Zhang
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Xijuan Zhao
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
| | - Bingxiang Wu
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
- Department of Medical Oncology, The Third Affiliated Hospital of Harbin Medical University, China (Y.Z.)
- The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Province, China (B.X.)
- Department of Biology, Georgia State University, Atlanta, GA (C.J.)
- State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Daqing (D.Z.)
- Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Harbin Medical University, China (D.Z.)
| | - Chun Jiang
- Department of Biology, Georgia State University, Atlanta, GA (C.J.)
| | - Daling Zhu
- Central Laboratory of Harbin Medical University, Daqing, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.X., X. Zhao, D.Z.)
- Department of Pharmacology, the State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education, College of Pharmacy, Harbin Medical University, China (Y.J., H.L., H.Y., J.Z., W.X., Y.L., S.H., C.M., X. Zheng, L.Z., X. Zhao, D.Z.)
- State Province Key Laboratories of Biomedicine-Pharmaceutics of China, Daqing (D.Z.)
- Key Laboratory of Cardiovascular Medicine Research, Ministry of Education, Harbin Medical University, China (D.Z.)
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Xia F, Zhang Z, Li X. Emerging Roles of Circular RNAs in Thyroid Cancer. Front Cell Dev Biol 2021; 9:636838. [PMID: 33981702 PMCID: PMC8107370 DOI: 10.3389/fcell.2021.636838] [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: 12/02/2020] [Accepted: 03/02/2021] [Indexed: 12/26/2022] Open
Abstract
Thyroid cancer (TC) has the highest incidence among endocrine malignancies. Thus, it is essential to achieve a deep understanding of various mechanisms of development and progression of TC. circRNAs are recognized by multiple studies as being dysregulated in TC. Accumulating evidences have revealed that circRNAs serve as regulatory molecules involved in various biological processes in TC, including cell proliferation, apoptosis, invasion/migration, metabolism, and chemoresistance. Furthermore, circRNA can also serve as an effective tool in TC researches of diagnosis, prognosis, and treatments. Thus, this review is to outline the characteristics of circRNAs, generalize their categories and functions, and highlight the expression of circRNAs in TC. Meanwhile, we are expecting to achieve a comprehensive understanding of new therapies based on circRNAs in treating or preventing TC.
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Affiliation(s)
- Fada Xia
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Zeyu Zhang
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
| | - Xinying Li
- Department of Thyroid Surgery, Xiangya Hospital, Central South University, Changsha, China
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135
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Zhou Z, Zhang Y, Gao J, Hao X, Shan C, Li J, Liu C, Wang Y, Li P. Circular RNAs act as regulators of autophagy in cancer. MOLECULAR THERAPY-ONCOLYTICS 2021; 21:242-254. [PMID: 34095462 PMCID: PMC8142048 DOI: 10.1016/j.omto.2021.04.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Circular RNAs (circRNAs) are a large class of noncoding RNAs that are emerging as critical regulators of various cellular processes that are involved in the physiopathological mechanism of many human diseases, such as cardiovascular disease, atherosclerosis, diabetes mellitus, and carcinogenesis. Autophagy is a conserved and catabolic cellular process that degrades unfolded, misfolded, or damaged protein aggregates or organelles to maintain cellular homeostasis under physiological and pathological conditions. Increasing evidence has shown a link between circRNAs and autophagy that is closely related to the occurrence and development of human diseases, including cancer. In this review, we highlight recent advances in understanding the functions and mechanisms of circRNAs in the regulation of autophagy in cancer. These autophagy-related circRNAs contribute to cancer development and progression in various types of human cancer by activating or inhibiting autophagy. Cumulative research on the relationship between circRNAs and autophagy regulation provides critical insight into the essential role that circRNAs play in carcinogenesis and suggests new targets for tumor therapy.
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Affiliation(s)
- Zhixia Zhou
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Yinfeng Zhang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Jinning Gao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Xiaodan Hao
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Chan Shan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Jing Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Cuiyun Liu
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Yin Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
| | - Peifeng Li
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao 266021, People's Republic of China
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AMPK activation by ASP4132 inhibits non-small cell lung cancer cell growth. Cell Death Dis 2021; 12:365. [PMID: 33824293 PMCID: PMC8024326 DOI: 10.1038/s41419-021-03655-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 03/17/2021] [Accepted: 03/18/2021] [Indexed: 12/25/2022]
Abstract
Activation of adenosine monophosphate-activated protein kinase (AMPK) is able to produce significant anti-non-small cell lung cancer (NSCLC) cell activity. ASP4132 is an orally active and highly effective AMPK activator. The current study tested its activity against NSCLC cells. In primary NSCLC cells and established cell lines (A549 and NCI-H1944) ASP4132 potently inhibited cell growth, proliferation and cell cycle progression as well as cell migration and invasion. Robust apoptosis activation was detected in ASP4132-treated NSCLC cells. Furthermore, ASP4132 treatment in NSCLC cells induced programmed necrosis, causing mitochondrial p53-cyclophilin D (CyPD)-adenine nucleotide translocase 1 (ANT1) association, mitochondrial depolarization and medium lactate dehydrogenase release. In NSCLC cells ASP4132 activated AMPK signaling, induced AMPKα1-ACC phosphorylation and increased AMPK activity. Furthermore, AMPK downstream events, including mTORC1 inhibition, receptor tyrosine kinases (PDGFRα and EGFR) degradation, Akt inhibition and autophagy induction, were detected in ASP4132-treated NSCLC cells. Importantly, AMPK inactivation by AMPKα1 shRNA, knockout (using CRISPR/Cas9 strategy) or dominant negative mutation (T172A) almost reversed ASP4132-induced anti-NSCLC cell activity. Conversely, a constitutively active AMPKα1 (T172D) mimicked and abolished ASP4132-induced actions in NSCLC cells. In vivo, oral administration of a single dose of ASP4132 largely inhibited NSCLC xenograft growth in SCID mice. AMPK activation, mTORC1 inhibition and EGFR-PDGFRα degradation as well as Akt inhibition and autophagy induction were detected in ASP4132-treated NSCLC xenograft tumor tissues. Together, activation of AMPK by ASP4132 potently inhibits NSCLC cell growth in vitro and in vivo.
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137
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Gu X, Zhang J, Ran Y, Pan H, Jia J, Zhao Y, Zhao X, Li W, Song S, Yu X. Circular RNA hsa_circ_101555 promotes hepatocellular carcinoma cell proliferation and migration by sponging miR-145-5p and regulating CDCA3 expression. Cell Death Dis 2021; 12:356. [PMID: 33824281 PMCID: PMC8024300 DOI: 10.1038/s41419-021-03626-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 03/10/2021] [Accepted: 03/16/2021] [Indexed: 11/09/2022]
Abstract
Circular RNAs have been reported to play significant roles in regulating pathophysiological processes while also guiding clinical diagnosis and treatment of hepatocellular carcinoma (HCC). However, only a few circRNAs have been identified thus far. Herein, we investigated the role of a specific closed-loop structure of hsa_circ_101555 that was generated by back-splicing of the host gene casein kinase 1 gamma 1 (CSNK1G1) in the development and proliferation of HCC. We investigated the expression of Hsa_circ_101555 in HCC and normal tissues using bioinformatics. The expression level of hsa_circ_101555 was further detected by fluorescence in situ hybridization and qRT-PCR in ten HCC patients. Transwell, migration, WST-1 assays, and colony formation assays were used to evaluate the role of hsa_circ_101555 in HCC development and proliferation. The regulatory mechanisms of hsa_circ_101555 in miR-145-5p and CDCA3 were determined by dual luciferase reporter assay. A mouse xenograft model was also used to determine the effect of hsa_circ_101555 on HCC growth in vivo. hsa_circ_101555 showed greater stability than the linear RNA; while in vitro and in vivo results demonstrated that hsa_circ_101555 silencing significantly suppressed cell proliferation, migration, and invasion of HCC cells. Rescue experiments further demonstrated that suppression of miR-145-5p significantly attenuated the biological effects of hsa_circ_101555 knockdown in HCC cells. We also identified a putative oncogene CDCA3 as a potential miR-145-5p target. Thus, our results demonstrated that hsa_circ_101555 might function as a competing endogenous RNA of miR-145-5p to upregulate CDCA3 expression in HCC. These findings suggest that hsa_circ_101555 may be a potential therapeutic target for patients with HCC.
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Affiliation(s)
- Xiaoguang Gu
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
| | - Jianan Zhang
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
| | - Yajuan Ran
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Department of Pharmacy, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, P. R. China
| | - Hena Pan
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
| | - JinHong Jia
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
| | - Ying Zhao
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
| | - Xijuan Zhao
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
| | - Wendi Li
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China
- Department of Pharmacology, Harbin university of commerce, 150081, Harbin, P. R. China
| | - Shasha Song
- College of Pharmacy, Shenzhen Technology University, 518118, Shenzhen, P.R. China
| | - Xiufeng Yu
- College of Medical Laboratory Science and Technology, Harbin Medical University (Daqing), 163319, Daqing, P. R. China.
- Central Laboratory of Harbin Medical University (Daqing), 163319, Daqing, P. R. China.
- Department of Pharmacy, The Second Affiliated Hospital of Chongqing Medical University, 400010, Chongqing, P. R. China.
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Qiu Z, Wang Y, Liu W, Li C, Zhao R, Long X, Rong J, Deng W, Shen C, Yuan J, Chen W, Shi B. CircHIPK3 regulates the autophagy and apoptosis of hypoxia/reoxygenation-stimulated cardiomyocytes via the miR-20b-5p/ATG7 axis. Cell Death Discov 2021; 7:64. [PMID: 33824287 PMCID: PMC8024346 DOI: 10.1038/s41420-021-00448-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/08/2021] [Accepted: 03/12/2021] [Indexed: 01/02/2023] Open
Abstract
Autophagy and apoptosis are involved in myocardial ischemia/reperfusion (I/R) injury. Research indicates that circular RNA HIPK3 (circHIPK3) is crucial to cell autophagy and apoptosis in various cancer types. However, the role of circHIPK3 in the regulation of cardiomyocyte autophagy and apoptosis during I/R remains unknown. Our study aimed to examine the regulatory effect of circHIPK3 during myocardial I/R and investigate its mechanism in cardiomyocyte autophagy and apoptosis. Methods and results. The expression of circHIPK3 was upregulated during myocardial I/R injury and hypoxia/reoxygenation (H/R) injury of cardiomyocytes. To study the potential role of circHIPK3 in myocardial H/R injury, we performed gain-of-function and loss-of-function analyses of circHIPK3 in cardiomyocytes. Overexpression of circHIPK3 significantly promoted H/R-induced cardiomyocyte autophagy and cell injury (increased intracellular reactive oxygen species (ROS) and apoptosis) compared to those in the control group, while silencing of circHIPK3 showed the opposite effect. Further research found that circHIPK3 acted as an endogenous miR-20b-5p sponge to sequester and inhibit miR-20b-5p activity, resulting in increased ATG7 expression. In addition, miR-20b-5p inhibitors reversed the decrease in ATG7 induced by silencing circHIPK3. Conclusions. CircHIPK3 can accelerate cardiomyocyte autophagy and apoptosis during myocardial I/R injury through the miR-20b-5p/ATG7 axis. These data suggest that circHIPK3 may serve as a potential therapeutic target for I/R.
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Affiliation(s)
- Zhimei Qiu
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Yan Wang
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Weiwei Liu
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Chaofu Li
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Ranzun Zhao
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Xianping Long
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Jidong Rong
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Wengweng Deng
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Changyin Shen
- Department of Cardiology, The Second Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Jinson Yuan
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Wengming Chen
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Bei Shi
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China.
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139
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Li S, Liu Y, Qiu G, Luo Y, Li X, Meng F, Li N, Xu T, Wang Y, Qin B, Xia S. Emerging roles of circular RNAs in non‑small cell lung cancer (Review). Oncol Rep 2021; 45:17. [PMID: 33649862 PMCID: PMC7876988 DOI: 10.3892/or.2021.7968] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/04/2021] [Indexed: 12/11/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of novel endogenous transcripts with limited protein‑coding abilities. CircRNAs have been demonstrated to function as critical regulators of tumor development and distant metastasis through binding to microRNAs (miRNAs) and interacting with RNA‑binding proteins, thereby regulating transcription and translation. Emerging evidence has illustrated that certain circRNAs can serve as biomarkers for diagnosis and prognosis of cancer, and/or serve as potential therapeutic targets. Expression of functional circRNAs is commonly dysregulated in cancer and this is correlated with advanced Tumor‑Node‑Metastasis stage, lymph node status, distant metastasis, poor differentiation and shorter overall survival of cancer patients. Recently, an increasing number of studies have shown that circRNAs are closely associated with NSCLC. Functional experiments have revealed that circRNAs are intricately associated with the pathological progression of NSCLC. The present review provides an overview of the regulatory effect of circRNAs in the development and progression of NSCLC, taking into consideration various physiological and pathological processes, such as proliferation, apoptosis, invasion and migration, and their potential value as biomarkers and therapeutic targets.
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Affiliation(s)
- Shanshan Li
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yize Liu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Guanzhen Qiu
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yinzhou Luo
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Xiang Li
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Fei Meng
- Department of Gynaecology and Obstetrics, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Nanyang Li
- Department of Pathology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Tiance Xu
- Second Department of Neurology, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Yong Wang
- Fourth Department of Orthopedic Surgery, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
- Central Laboratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
| | - Baoli Qin
- Department of Internal Medicine, Cancer Hospital of China Medical University/Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, P.R. China
| | - Shuyue Xia
- Department of Respiratory, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
- Dean's Office, Central Hospital Affiliated to Shenyang Medical College, Shenyang, Liaoning 110024, P.R. China
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140
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Shao Q, Huang Y, Zhang C, Gao X, Gao S. Emerging landscape of circHIPK3 and its role in cancer and other diseases (Review). Mol Med Rep 2021; 23:409. [PMID: 33786629 PMCID: PMC8025471 DOI: 10.3892/mmr.2021.12048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Accepted: 02/19/2021] [Indexed: 12/25/2022] Open
Abstract
Circular RNAs (circRNAs) are a special class of recently re‑discovered RNAs, which are covalently closed ring RNA molecules. circRNAs have been reported to possess multiple functions and are considered crucial regulators of several processes, and are therefore gaining increasing attention. In recent years, increasing evidence has shown that circRNAs are implicated in several crucial biological processes via regulation of gene expression, and their dysregulation is also associated with the development of numerous diseases, particularly acting as oncogenic or tumor‑suppressor molecules in cancer. Furthermore, circRNAs are involved in cell proliferation, differentiation, apoptosis, invasion and metastasis. In the present review, the biogenesis and functions of circRNAs are described, with a focus on the most recent research advances and the emerging roles of circular homeodomain‑interacting protein kinase 3 (circHIPK3) in human diseases. The present review may provide novel avenues for research on the roles of circHIPK3 as a clinical diagnostic and prognostic biomarker, as well as highlighting promising therapeutic targets for certain diseases and cancer.
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Affiliation(s)
- Qi Shao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Yong Huang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Cai Zhang
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Xiaochan Gao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
| | - Shiyang Gao
- College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, Henan 471023, P.R. China
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141
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Yang X, Su W, Li Y, Zhou Z, Zhou Y, Shan H, Han X, Zhang M, Zhang Q, Bai Y, Guo C, Yang S, Beer DG, Chen G. MiR-22-3p suppresses cell growth via MET/STAT3 signaling in lung cancer. Am J Transl Res 2021; 13:1221-1232. [PMID: 33841651 PMCID: PMC8014426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 12/18/2020] [Indexed: 06/12/2023]
Abstract
MiR-22-3p has been reported to be down-regulated in several cancers, but its expression pattern and roles in lung cancer is unclear. Given the crucial role of microRNAs in cancer progression, we examined the expression and function of miR-22-3p in lung adenocarcinoma. MiR-22-3p expression in lung cancer tissues and cell lines was measured by qRT-PCR. Cell proliferation was measured by WST-1 and colony formation assays were used to reveal the role of miR-22-3p in lung cancer in vitro. MiR-22-3p was notably down-regulated in lung cancer tissues as compared to normal lung tissues, but it was not associated with the clinical characteristics of tumor stage, differentiation and patient's smoking status. Colony formation ability and cell proliferation were suppressed by miR-22-3p mimics in lung cancer cell lines. Mechanistically, miR-22-3p mimics could reduce MET and STAT3 protein expression and induce apoptosis as measured by PARP protein. We conclude that miR-22-3p may play a tumor suppressor role via inhibiting MET-STAT3 signaling and have potential to be a therapeutic target and biomarker in lung adenocarcinoma.
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Affiliation(s)
- Xia Yang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, China
| | - Wenmei Su
- Department of Oncology, Affiliated Hospital of Guangdong Medical UniversityZhanjiang, China
| | - Yu Li
- School of Medicine, Southern University of Science and TechnologyShenzhen 518055, China
| | - Zhiqing Zhou
- School of Medicine, Southern University of Science and TechnologyShenzhen 518055, China
| | - Yi Zhou
- School of Medicine, Southern University of Science and TechnologyShenzhen 518055, China
| | - Hu Shan
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, China
| | - Xiaoling Han
- Department of Oncology, Affiliated Hospital of Guangdong Medical UniversityZhanjiang, China
| | - Ming Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, China
| | - Qiuhong Zhang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, China
| | - Ying Bai
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, China
| | - Chunfang Guo
- Department of Surgery, University of MichiganAnn Arbor, Michigan, USA
| | - Shuanying Yang
- Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Xi’an Jiaotong UniversityXi’an, China
| | - David G Beer
- Department of Surgery, University of MichiganAnn Arbor, Michigan, USA
| | - Guoan Chen
- School of Medicine, Southern University of Science and TechnologyShenzhen 518055, China
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142
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Wang W, Zhu D, Zhao Z, Sun M, Wang F, Li W, Zhang J, Jiang G. RNA sequencing reveals the expression profiles of circRNA and identifies a four-circRNA signature acts as a prognostic marker in esophageal squamous cell carcinoma. Cancer Cell Int 2021; 21:151. [PMID: 33663506 PMCID: PMC7934454 DOI: 10.1186/s12935-021-01852-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 02/24/2021] [Indexed: 12/13/2022] Open
Abstract
Background CircRNAs with tissue-specific expression and stable structure may be good tumor prognostic markers. However, the expression of circRNAs in esophageal squamous cell carcinoma (ESCC) remain unknown. We aim to identify prognostic circRNAs and construct a circRNA-related signature in ESCC. Methods RNA sequencing was used to test the circRNA expression profiles of 73 paired ESCC tumor and normal tissues after RNase R enrichment. Bioinformatics methods, such as principal component analysis (PCA), t-distributed Stochastic Neighbor Embedding (t-SNE) algorithm, unsupervised clustering and hierarchical clustering were performed to analyze the circRNA expression characteristics. Univariate cox regression analysis, random survival forests-variable hunting (RSFVH), Kaplan–Meier analysis, multivariable Cox regression and ROC (receiver operating characteristic) curve analysis were used to screen the prognostic circRNA signature. Real-time quantitative PCR (qPCR) and fluorescence in situ hybridization(FISH) in 125 ESCC tissues were performed. Results Compared with normal tissues, there were 11651 differentially expressed circRNAs in cancer tissues. A total of 1202 circRNAs associated with ESCC prognosis (P < 0.05) were identified. Through bioinformatics analysis, we screened a circRNA signature including four circRNAs (hsa_circ_0000005, hsa_circ_0007541, hsa_circ_0008199, hsa_circ_0077536) which can classify the ESCC patients into two groups with significantly different survival (log rank P < 0.001), and found its predictive performance was better than that of the TNM stage(0.84 vs. 0.66; 0.65 vs. 0.62). Through qPCR and FISH experiment, we validated the existence of the screened circRNAs and the predictive power of the circRNA signature. Conclusion The prognostic four-circRNA signature could be a new prognostic biomarker for ESCC, which has high clinical application value.
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Affiliation(s)
- Weiwei Wang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Jian she Dong Road 1, Zhengzhou, 450052, Henan, China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, 450002, China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou University, Zhengzhou, 450052, China
| | - Di Zhu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Jian she Dong Road 1, Zhengzhou, 450052, Henan, China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, 450002, China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou University, Zhengzhou, 450052, China
| | - Zhihua Zhao
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Jian she Dong Road 1, Zhengzhou, 450052, Henan, China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, 450002, China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou University, Zhengzhou, 450052, China
| | - Miaomiao Sun
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Jian she Dong Road 1, Zhengzhou, 450052, Henan, China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, 450002, China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou University, Zhengzhou, 450052, China
| | - Feng Wang
- Department of Oncology, First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou, 450052, China
| | - Wencai Li
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Jian she Dong Road 1, Zhengzhou, 450052, Henan, China.,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, 450002, China.,Henan Key Laboratory for Tumor Pathology, Zhengzhou University, Zhengzhou, 450052, China
| | - Jianying Zhang
- State Key Laboratory of Esophageal Cancer Prevention & Treatment, Zhengzhou University, Zhengzhou, 450052, Henan, China.
| | - Guozhong Jiang
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Jian she Dong Road 1, Zhengzhou, 450052, Henan, China. .,Department of Pathology, School of Basic Medicine, Zhengzhou University, Zhengzhou, 450002, China. .,Henan Key Laboratory for Tumor Pathology, Zhengzhou University, Zhengzhou, 450052, China.
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143
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Zhou J, Wang B, Bin X, Xie C, Li B, Liu O, Tang Z. CircHIPK3: Key Player in Pathophysiology and Potential Diagnostic and Therapeutic Tool. Front Med (Lausanne) 2021; 8:615417. [PMID: 33693013 PMCID: PMC7937734 DOI: 10.3389/fmed.2021.615417] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/02/2021] [Indexed: 12/21/2022] Open
Abstract
A large number of studies in China and other countries have confirmed that circularHIPK3 (circHIPK3) plays an important role in the pathophysiological processes of various diseases. Through the action of sponge miRNA (miR), circHIPK3 regulates cell proliferation, differentiation, and migration, and plays a key role in disease processes. By referring to a large number of research reports, this article explores the specific functional role of circHIPK3 in fibrotic diseases, cancer, and other diseases. This review aims to clarify the role of circHIPK3 in disease processes in order to aid further studies into the specific pathogenesis and clinical diagnosis of various diseases and provide new ideas for treatments.
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Affiliation(s)
- Jiang Zhou
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Baisheng Wang
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Xin Bin
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Changqing Xie
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Bo Li
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Ousheng Liu
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
| | - Zhangui Tang
- Hunan Key Laboratory of Oral Health Research & Hunan 3D Printing Engineering Research Center of Oral Care & Hunan Clinical Research Center of Oral Major Diseases and Oral Health & Xiangya Stomatological Hospital & Xiangya School of Stomatology, Central South University, Changsha, China
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144
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Pan Y, Abdureyim M, Yao Q, Li X. Analysis of Differentially Expressed Genes in Endothelial Cells Following Tumor Cell Adhesion, and the Role of PRKAA2 and miR-124-3p. Front Cell Dev Biol 2021; 9:604038. [PMID: 33681194 PMCID: PMC7933219 DOI: 10.3389/fcell.2021.604038] [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: 09/08/2020] [Accepted: 01/19/2021] [Indexed: 01/25/2023] Open
Abstract
Tumor cell adhesion to the endothelium is one pattern of tumor-endothelium interaction and a key step during tumor metastasis. Endothelium integrity is an important barrier to prevent tumor invasion and metastasis. Changes in endothelial cells (ECs) due to tumor cell adhesion provide important signaling mechanisms for the angiogenesis and metastasis of tumor cells. However, the changes happened in endothelial cells when tumor-endothelium interactions are still unclear. In this study, we used Affymetrix Gene Chip Human Transcriptome Array 2.0. and quantitative real-time PCR (qPCR) to clarify the detailed gene alteration in endothelial cells adhered by prostate tumor cells PC-3M. A total of 504 differentially expressed mRNAs and 444 lncRNAs were obtained through chip data analysis. Gene Ontology (GO) function analysis showed that differentially expressed genes (DEGs) mainly mediated gland development and DNA replication at the biological level; at the cell component level, they were mainly involved in the mitochondrial inner membrane; and at the molecular function level, DEGs were mainly enriched in ATPase activity and catalytic activity. Kyoto Encyclopedia of Genes and Genomes (KEGG) signal pathway analysis showed that the DEGs mainly regulated pathways in cancer, cell cycle, pyrimidine metabolism, and the mTOR signaling pathway. Then, we constructed a protein-protein interaction functional network and mRNA-lncRNA interaction network using Cytoscape v3.7.2. to identify core genes, mRNAs, and lncRNAs. The miRNAs targeted by the core mRNA PRKAA2 were predicted using databases (miRDB, RNA22, and Targetscan). The qPCR results showed that miR-124-3p, the predicted target miRNA of PRKAA2, was significantly downregulated in endothelial cells adhered by PC-3M. With a dual luciferase reporter assay, the binding of miR-124-3p with PRKAA2 3'UTR was confirmed. Additionally, by using the knockdown lentiviral vectors of miR-124-3p to downregulate the miR-124-3p expression level in endothelial cells, we found that the expression level of PRKAA2 increased accordingly. Taken together, the adhesion of tumor cells had a significant effect on mRNAs and lncRNAs in the endothelial cells, in which PRKAA2 is a notable changed molecule and miR-124-3p could regulate its expression and function in endothelial cells.
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Affiliation(s)
- Yan Pan
- Department of Pharmacology, Health Science Center, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Marhaba Abdureyim
- Department of Pharmacology, Health Science Center, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Qing Yao
- Department of Biochemistry and Molecular Biology, Ningxia Medical University, Yinchuan, China
| | - Xuejun Li
- Department of Pharmacology, Health Science Center, School of Basic Medical Sciences, Peking University, Beijing, China
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145
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Chen L, Shan G. CircRNA in cancer: Fundamental mechanism and clinical potential. Cancer Lett 2021; 505:49-57. [PMID: 33609610 DOI: 10.1016/j.canlet.2021.02.004] [Citation(s) in RCA: 195] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 02/07/2023]
Abstract
Circular RNAs (CircRNAs) are a class of single-stranded noncoding RNAs that are formed in a circular conformation via non-canonical splicing or back-splicing events. Aberrant expressions of many circRNAs are observed in diverse cancers, indicating their crucial roles in tumorigenesis and tumor development. Recently, several pieces of evidence have revealed that many circRNAs are involved in the promotion or suppression of cancers to varying degrees via different molecular mechanisms. Here in this review, we present a summary of the characteristics, types, biogenesis, and functions of circRNAs, and outline a series of the most recently studied circRNAs and their functional mechanisms in multiple cancer types with future perspectives. With great advances in nucleic acid-based therapeutic tools, circRNAs could be further explored as targetable molecules in future cancer treatments.0.
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Affiliation(s)
- Liang Chen
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China.
| | - Ge Shan
- Department of Clinical Laboratory, The First Affiliated Hospital of USTC, Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Basic Medical Sciences, Division of Life Science and Medicine, University of Science and Technology of China, Hefei, 230027, China.
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146
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Guo J, Tong J, Zheng J. Circular RNAs: A Promising Biomarker for Endometrial Cancer. Cancer Manag Res 2021; 13:1651-1665. [PMID: 33633465 PMCID: PMC7901565 DOI: 10.2147/cmar.s290975] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/19/2021] [Indexed: 01/06/2023] Open
Abstract
Endometrial cancer (EC) is one of the most common malignant tumors of the female reproductive tract. EC patients have high morbidity and mortality rates and remain an important cause of cancer-related morbidity and mortality worldwide. More and more studies have shown that a large number of non-coding RNAs (such as microRNAs and long non-coding RNAs) are associated with the occurrence of diseases. Circular RNAs (circRNAs) is an endogenous non-coding RNA. It has a unique covalent structure. Many studies in recent years have found circRNAs differential expression in a variety of tumor tissues compared to matched normal tissues. In endometrial carcinoma, there also are multiple circRNAs differentially expressed and therefore circRNAs perhaps can be used as a diagnostic and prognosis biomarkers of EC. In this review, we described the biogenesis, function and characteristics of circRNAs, and the circRNAs with potential influence and clinical significance on the development of EC were summarized. Adenocarcinoma is the most common form of EC, so this review focuses on endometrioid adenocarcinoma.
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Affiliation(s)
- Jialu Guo
- Department of the Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310008, People's Republic of China.,Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), Hangzhou, Zhejiang Province, 310008, People's Republic of China
| | - Jinyi Tong
- Department of the Fourth Clinical Medical College, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, 310008, People's Republic of China.,Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), Hangzhou, Zhejiang Province, 310008, People's Republic of China
| | - Jianfeng Zheng
- Department of Obstetrics and Gynecology, Hangzhou Women's Hospital (Hangzhou Maternity and Child Health Care Hospital), Hangzhou, Zhejiang Province, 310008, People's Republic of China.,Department of Obstetrics and Gynecology, Affiliated Hangzhou Hospital, Nanjing Medical University, Hangzhou, Zhejiang Province, 310008, People's Republic of China
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147
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Xiong X, Feng J, Yang X, Li H, Shi Q, Tao J, Chang J. Circular RNA CDR1as promotes tumor progression by regulating miR-432-5p/E2F3 axis in pancreatic cancer. Cancer Cell Int 2021; 21:112. [PMID: 33593338 PMCID: PMC7885204 DOI: 10.1186/s12935-021-01812-3] [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: 11/17/2020] [Accepted: 02/05/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Pancreatic cancer (PC), characterized with high growth rate and metastatic rate. It's urgently necessary to explore new mechanism of PC. Circular RNA/miRNA/mRNA network was widely reported to participate in the cancer progression. METHODS In this research, circular RNA CDR1as (circCDR1as) was identified by microarray analysis and detected in pancreatic cancer (PC) tissues and cells. Transwell, colony-forming assay, nude mouse tumorigenicity assay were used to determine the function of circCDR1as in PC. Western blot, dual luciferase reporting test were applied to investigate the mechanism. RESULTS We found that circCDR1as was highly expressed in PC tissues. The levels of circCDR1as in PC tissues and cells were higher than those in controls. CircCDR1as promoted the migration, invasion and proliferation of PC cells in vitro and tumor growth in vivo via mediating E2F3 expression by sponging miR-432-5p. CONCLUSIONS In conclusion, circCDR1as could promote the development of PC and might be a novel diagnostic target for PC.
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Affiliation(s)
- Xingcheng Xiong
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Jiarui Feng
- Department of Medical Management, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Xiao Yang
- Department of Hepatobiliary Surgery, Qianjiang Central Hospital of Hubei Province, 22 Zhanghua Middle Road, Qianjiang, 433199, Hubei, China.,Department of Hepatobiliary Surgery, Qianjiang Hospital Affiliated to Renmin Hospital of Wuhan University, 22 Zhanghua Middle Road, Qianjiang, 433199, Hubei, China.,Department of Hepatobiliary Surgery, Qianjiang Clinical Medical College, Health Science Center, Yangtze University, 22 Zhanghua Middle Road, Qianjiang, 433199, Hubei, China
| | - Hanjun Li
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Qiao Shi
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China
| | - Jing Tao
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China.
| | - Jian Chang
- Department of Pancreatic Surgery, Renmin Hospital of Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei, China.
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148
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Zheng Z, Chen Z, Zhong Q, Zhu D, Xie Y, Shangguan W, Xie W. CircPVT1 promotes progression in clear cell renal cell carcinoma by sponging miR-145-5p and regulating TBX15 expression. Cancer Sci 2021; 112:1443-1456. [PMID: 33453148 PMCID: PMC8019224 DOI: 10.1111/cas.14814] [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: 08/04/2020] [Revised: 12/11/2020] [Accepted: 01/10/2021] [Indexed: 12/30/2022] Open
Abstract
Emerging evidence revealed that circular RNAs (circRNAs) play significant roles in regulating tumorigenesis and cancer progression. However, few circRNAs were well characterized in clear cell renal cell carcinoma (ccRCC). We found that circPVT1 was significantly upregulated in ccRCC tissues and positively associated with the clinical stage. The Area Under Curve of tissue and serum circPVT1 expression in ccRCC were 0.93 and 0.86, respectively. Importantly, we demonstrated that circPVT1 promoted ccRCC growth and metastasis in vitro and in vivo. We also found that circPVT1 directly binds to miRNA‐145‐5p via the Biotin‐labelled miRNA pulldown assay and dual‐luciferase reporter assay, and miR‐145‐5p inhibitor significantly attenuated the effect of circPVT1 knockdown on ccRCC cells. Moreover, through RNA sequencing and bioinformatics analysis, we demonstrated that TBX15 was regulated by the circPVT1/miR‐145‐5p axis and predicted poor prognosis in ccRCC. These findings suggest that circPVT1 promotes ccRCC growth and metastasis through sponging miR‐145‐5p and regulating downstream target TBX15 expression. The circPVT1/miR‐145‐5p/TBX15 axis might be a potential diagnostic marker and therapeutic target in ccRCC.
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Affiliation(s)
- Zaosong Zheng
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhiliang Chen
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiyu Zhong
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dingjun Zhu
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yingwei Xie
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wentai Shangguan
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenlian Xie
- Department of Urology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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149
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Feng B, Zhou H, Wang T, Lin X, Lai Y, Chu X, Wang R. Insights Into circRNAs: Functional Roles in Lung Cancer Management and the Potential Mechanisms. Front Cell Dev Biol 2021; 9:636913. [PMID: 33634138 PMCID: PMC7900409 DOI: 10.3389/fcell.2021.636913] [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: 12/02/2020] [Accepted: 01/20/2021] [Indexed: 01/17/2023] Open
Abstract
Lung cancer is the most prevalent cancer globally. It is also the leading cause of cancer-related death because of the late diagnosis and the frequent resistance to therapeutics. Therefore, it is impending to identify novel biomarkers and effective therapeutic targets to improve the clinical outcomes. Identified as a new class of RNAs, circular RNAs (circRNAs) derive from pre-mRNA back splicing with considerable stability and conservation. Accumulating research reveal that circRNAs can function as microRNA (miRNA) sponges, regulators of gene transcription and alternative splicing, as well as interact with RNA-binding proteins (RBPs), or even be translated into proteins directly. Currently, a large body of circRNAs have been demonstrated differentially expressed in physiological and pathological processes including cancer. In lung cancer, circRNAs play multiple roles in carcinogenesis, development, and response to different therapies, indicating their potential as diagnostic and prognostic biomarkers as well as novel therapeutics. In this review, we summarize the multi-faceted functions of circRNAs in lung cancer and the underlying mechanisms, together with the possible future of these discoveries in clinical application.
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Affiliation(s)
- Bing Feng
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Hao Zhou
- Department of Medical Oncology, Jinling Hospital, Nanjing Medical University, Nanjing, China
| | - Ting Wang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Xinrong Lin
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - Yongting Lai
- Department of Medical Oncology, Nanjing School of Clinical Medicine, Jinling Hospital, Southern Medical University, Nanjing, China
| | - Xiaoyuan Chu
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, Nanjing Medical University, Nanjing, China.,Department of Medical Oncology, Nanjing School of Clinical Medicine, Jinling Hospital, Southern Medical University, Nanjing, China
| | - Rui Wang
- Department of Medical Oncology, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Department of Medical Oncology, Jinling Hospital, Nanjing Medical University, Nanjing, China.,Department of Medical Oncology, Nanjing School of Clinical Medicine, Jinling Hospital, Southern Medical University, Nanjing, China
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150
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Viralippurath Ashraf J, Sasidharan Nair V, Saleh R, Elkord E. Role of circular RNAs in colorectal tumor microenvironment. Biomed Pharmacother 2021; 137:111351. [PMID: 33550046 DOI: 10.1016/j.biopha.2021.111351] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/26/2021] [Accepted: 01/27/2021] [Indexed: 02/06/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of endogenous noncoding RNA, which were previously considered as a byproduct of RNA splicing error. Numerous studies have demonstrated the altered expression of circRNAs in organ tissues during pathological conditions and their involvements in disease pathogenesis and progression, including cancers. In colorectal cancer (CRC), multiple circRNAs have been identified and characterized as "oncogenic", given their involvements in the downregulation of tumor suppressor genes and induction of tumor initiation, progression, invasion, and metastasis. Additionally, other circRNAs have been identified in CRC and characterized as "tumor suppressive" based on their ability of inhibiting the expression of oncogenic genes and suppressing tumor growth and proliferation. circRNAs could serve as potential diagnostic and prognostic biomarkers, and therapeutic targets or vectors to be utilized in cancer therapies. This review briefly describes the dynamic changes of the tumor microenvironment inducing immunosuppression and tumorigenesis, and outlines the biogenesis and characteristics of circRNAs and recent findings indicating their roles and functions in the CRC tumor microenvironment. It also discusses strategies and technologies, which could be employed in the future to overcome current cancer therapy challenges associated with circRNAs.
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Affiliation(s)
| | - Varun Sasidharan Nair
- Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
| | - Reem Saleh
- Qatar Biomedical Research Institute (QBRI), Hamad Bin Khalifa University (HBKU), Qatar Foundation (QF), Doha, Qatar
| | - Eyad Elkord
- College of Health & Life Sciences, Hamad Bin Khalifa University, Qatar Foundation, Doha, Qatar; Biomedical Research Centre, School of Science, Engineering and Environment, University of Salford, Manchester, UK.
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