1
|
Zhao J, Zhang T, Wu P, Qiu J, Wu K, Shi L, Zhu Q, Zhou J. circRNA-0015004 act as a ceRNA to promote RCC2 expression in hepatocellular carcinoma. Sci Rep 2024; 14:16913. [PMID: 39043840 PMCID: PMC11266727 DOI: 10.1038/s41598-024-67819-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 07/16/2024] [Indexed: 07/25/2024] Open
Abstract
Although circular RNAs (circRNA) have been demonstrated to modulate tumor initiation and progression, their roles in the proliferation of hepatocellular carcinoma (HCC) are still poorly understood. Based on the analysis of GEO data (GSE12174), hsa-circRNA-0015004 (circ-0015004) was screened and validated in 80 sets of HCC specimens. Subcellular fractionation analysis was designed to determine the cellular location of circ-0015004. Colony formation and cell counting kit-8 were performed to investigate the role of circ-0015004 in HCC. Dual-luciferase reporter gene assays, RNA immunoprecipitation and chromatin immunoprecipitation were employed to verify the interaction among circ-0015004, miR-330-3p and regulator of chromatin condensation 2 (RCC2). The expression level of circ-0015004 was significantly upregulated in HCC cell lines and HCC tissues. HCC patients with higher circ-0015004 levels displayed shorter overall survival, and higher tumor size and TNM stage. Moreover, knockdown of circ-0015004 significantly reduced HCC cell proliferation in vitro and inhibited the growth of HCC in nude mice. Mechanistic studies revealed that circ-0015004 could upregulate the expression of RCC2 by sponging miR-330-3p, thereby promoting HCC cell proliferation. Furthermore, we identified that Ying Yang 1 (YY1) could function as an important regulator of circ-0015004 transcription. This study systematically demonstrated the novel regulatory signaling of circ-0015004/miR-330-3p/RCC2 axis in promoting HCC progression, providing insight into HCC diagnosis and treatment from bench to clinic.
Collapse
MESH Headings
- Humans
- Carcinoma, Hepatocellular/genetics
- Carcinoma, Hepatocellular/pathology
- Carcinoma, Hepatocellular/metabolism
- RNA, Circular/genetics
- RNA, Circular/metabolism
- Liver Neoplasms/genetics
- Liver Neoplasms/pathology
- Liver Neoplasms/metabolism
- Animals
- MicroRNAs/genetics
- MicroRNAs/metabolism
- Gene Expression Regulation, Neoplastic
- Cell Proliferation/genetics
- Mice
- Cell Line, Tumor
- Male
- Female
- Guanine Nucleotide Exchange Factors/genetics
- Guanine Nucleotide Exchange Factors/metabolism
- Cell Cycle Proteins/genetics
- Cell Cycle Proteins/metabolism
- Mice, Nude
- Middle Aged
- YY1 Transcription Factor/metabolism
- YY1 Transcription Factor/genetics
- Up-Regulation
- RNA, Competitive Endogenous
- Chromosomal Proteins, Non-Histone
Collapse
Affiliation(s)
- Jie Zhao
- Department of General Surgery, Wujin Hospital of Traditional Chinese Medicine, Changzhou, China
| | - Tong Zhang
- Department of Hepatobiliary Surgery, Xinghua People's Hospital Affiliated Yangzhou University, Xinghua, China
| | - Peng Wu
- Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Jiajing Qiu
- Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Kejia Wu
- The First People's Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China
| | - Longqing Shi
- The First People's Hospital of Changzhou, The Third Affiliated Hospital of Soochow University, Changzhou, Jiangsu, China.
| | - Qiang Zhu
- Children's Hospital of Nanjing Medical University, Nanjing, China.
| | - Jun Zhou
- Children's Hospital of Nanjing Medical University, Nanjing, China.
| |
Collapse
|
2
|
Zhang S, Li H, Jiang W, Chen X, Zhou H, Wang C, Kong H, Shi Y, Shi X. CircCamsap1 is dispensable for male fertility in mice. PeerJ 2024; 12:e17399. [PMID: 38799061 PMCID: PMC11122046 DOI: 10.7717/peerj.17399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/25/2024] [Indexed: 05/29/2024] Open
Abstract
Background Circular RNAs (circRNAs) are a large class of RNAs present in mammals. Among these, circCamsap1 is a well-acknowledged circRNA with significant implications, particularly in the development and progression of diverse tumors. However, the potential consequences of circCamsap1 depletion in vivo on male reproduction are yet to be thoroughly investigated. Methods The presence of circCamsap1 in the mouse testes was confirmed, and gene expression analysis was performed using reverse transcription quantitative polymerase chain reaction. CircCamsap1 knockout mice were generated utilizing the CRISPR/Cas9 system. Phenotypic analysis of both the testes and epididymis was conducted using histological and immunofluorescence staining. Additionally, fertility and sperm motility were assessed. Results Here, we successfully established a circCamsap1 knockout mouse model without affecting the expression of parental gene. Surprisingly, male mice lacking circCamsap1 (circCamsap1-/-) exhibited normal fertility, with no discernible differences in testicular and epididymal histology, spermatogenesis, sperm counts or sperm motility compared to circCamsap1+/+ mice. These findings suggest that circCamsap1 may not play an essential role in physiological spermatogenesis. Nonetheless, this result also underscores the complexity of circRNA function in male reproductive biology. Therefore, further research is necessary to elucidate the precise roles of other circRNAs in regulating male fertility.
Collapse
Affiliation(s)
- Shu Zhang
- Center of Reproduction, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Haojie Li
- Center of Reproduction, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
- Changzhou Medical Center, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Jiang
- Women’s Hospital of Nanjing Medical University, Nanjing Women and Children’s Healthcare Hospital, Nanjing, Jiangsu, China
| | - Xia Chen
- Center of Reproduction, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Han Zhou
- Center of Reproduction, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Chang Wang
- Department of Clinical Nursing, School of Nursing, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Hao Kong
- State Key Laboratory of Reproductive Medicine and Offspring Health, Department of Histology and Embryology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yichao Shi
- Center of Reproduction, The Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Xiaodan Shi
- Women’s Hospital of Nanjing Medical University, Nanjing Women and Children’s Healthcare Hospital, Nanjing, Jiangsu, China
| |
Collapse
|
3
|
Dawoud A, Elmasri RA, Mohamed AH, Mahmoud A, Rostom MM, Youness RA. Involvement of CircRNAs in regulating The "New Generation of Cancer Hallmarks": A Special Depiction on Hepatocellular Carcinoma. Crit Rev Oncol Hematol 2024; 196:104312. [PMID: 38428701 DOI: 10.1016/j.critrevonc.2024.104312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 02/01/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024] Open
Abstract
The concept of 'Hallmarks of Cancer' is an approach of reducing the enormous complexity of cancer to a set of guiding principles. As the underlying mechanism of cancer are portrayed, we find that we gain insight and additional aspects of the disease arise. The understanding of the tumor microenvironment (TME) brought a new dimension and led to the discovery of novel hallmarks such as senescent cells, non-mutational epigenetic reprogramming, polymorphic microbiomes and unlocked phenotypic plasticity. Circular RNAs (circRNAs) are single-stranded, covalently closed RNA molecules that are ubiquitous across all species. Recent studies on the circRNAs have highlighted their crucial function in regulating the formation of human malignancies through a range of biological processes. The primary goal of this review is to clarify the role of circRNAs in the most common form of liver cancer, hepatocellular carcinoma (HCC). This review also addressed the topic of how circRNAs affect HCC hallmarks, including the new generation hallmarks. Finally, the enormous applications that these rapidly expanding ncRNA molecules serve in the functional and molecular development of effective HCC diagnostic biomarkers and therapeutic targets.
Collapse
Affiliation(s)
- A Dawoud
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), 11835, New Administrative Capital, Egypt; School of Medicine, University of North California, Chapel Hill, NC 27599, USA
| | - R A Elmasri
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), 11835, New Administrative Capital, Egypt
| | - A H Mohamed
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), 11835, New Administrative Capital, Egypt; Department of Chemistry, Faculty of Science, Cairo University, Cairo, Egypt
| | - A Mahmoud
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), 11835, New Administrative Capital, Egypt; Biotechnology School, Nile University, Giza 12677, Egypt
| | - M M Rostom
- Department of Pharmacology and Toxicology, Faculty of Pharmacy and Biotechnology, German University in Cairo (GUC), Cairo 11835, Egypt
| | - R A Youness
- Molecular Genetics and Biochemistry Department, Molecular Genetics Research Team (MGRT), Faculty of Biotechnology, German International University (GIU), 11835, New Administrative Capital, Egypt.
| |
Collapse
|
4
|
Wang S, Zhang BS, Yang Y, Fu LL. CircFN1 promotes acute myeloid leukemia cell proliferation and invasion but refrains apoptosis via miR-1294/ARHGEF10L axis. Kaohsiung J Med Sci 2024; 40:221-230. [PMID: 38180276 DOI: 10.1002/kjm2.12801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 01/06/2024] Open
Abstract
Previous studies have proved circFN1 is highly expressed in acute myeloid leukemia (AML) patients and AML cell lines. This study aims to investigate the impact of circFN1 on AML and its mechanism. Via real-time quantitative PCR to detect circFN1, miR-1294, ARHGEF10L expressions in clinical plasma samples and AML cell lines, AML cells were cultured in vitro and transfected with si-circFN1, pcDNA3.1-circFN1, and si-ARHGEF10L, respectively, or co-transfected pcDNA3.1-circFN1 + miR-1294 mimic and pcDNA3.1-circFN1 + si-ARHGEF10L. Using dual luciferase reporter experiment to detect the relationship between circFN1 and miR-1294, as well as miR-1294 and ARHGEF10L. CCK-8 was used to detect cell proliferation, Transwell to cell invasion, TUNEL staining and flow cytometry to detect cell apoptosis, RT-qPCR to circFN1 RNA, miR-1294, and ARHGEF10L expression levels in HL-60 cells, and western blot to ARHGEF10L protein expression level in HL-60 cells. We found highly expressed circFN1 and ARHGEF10L, as well as low-expressed miR-1294 in AML patients and AML cell lines. In contrast to si-NC group, si-circFN1 group could signally inhibit HL-60 cell proliferation and migration, but promote cell apoptosis; compared with mimic NC group, miR-1294 mimic group could visually inhibit HL-60 cell proliferation and migration, but promote cell apoptosis. miR-1294 was the target of circFN1, and ARHGEF10L was the target of miR-1294. Over-expressing miR-1294 or silencing ARHGEF10L could signally inhibit circFN1 promoting HL-60 cell proliferation and migration and repressing cell apoptosis. circFN1 promotes proliferation and invasion of AML cell and represses cell apoptosis via regulating miR-1294/ARHGEF10L axis, which provides new insight for molecular targeted-treatment for AML.
Collapse
Affiliation(s)
- Sheng Wang
- Department of Hematology, Three Gorges Hospital Affiliated to Chongqing University, Chongqing City, China
| | - Bang-Shuo Zhang
- Department of Hematology, Three Gorges Hospital Affiliated to Chongqing University, Chongqing City, China
| | - Yi Yang
- Department of Hematology, Three Gorges Hospital Affiliated to Chongqing University, Chongqing City, China
| | - Lin-Lin Fu
- Department of Hematology, Three Gorges Hospital Affiliated to Chongqing University, Chongqing City, China
| |
Collapse
|
5
|
Xie C, Hao X, Yuan H, Wang C, Sharif R, Yu H. Crosstalk Between circRNA and Tumor Microenvironment of Hepatocellular Carcinoma: Mechanism, Function and Applications. Onco Targets Ther 2024; 17:7-26. [PMID: 38283733 PMCID: PMC10812140 DOI: 10.2147/ott.s437536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 11/30/2023] [Indexed: 01/30/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common aggressive tumors in the world. Despite the availability of various treatments, its prognosis remains poor due to the lack of specific diagnostic indicators and the high heterogeneity of HCC cases. CircRNAs are noncoding RNAs with stable and highly specific expression. Extensive research evidence suggests that circRNAs mediate the pathogenesis and progression of HCC through acting as miRNA sponges, protein modulators, and translation templates. Tumor microenvironment (TME) has become a hotspot of immune-related research in recent years due to its effects on metabolism, secretion and immunity of HCC. Accordingly, understanding the role played by circRNAs in TME is important for the study of HCC. This review will discuss the crosstalk between circRNAs and TME in HCC. In addition, we will discuss the current deficiencies and controversies in research on circRNAs and predict future research directions.
Collapse
Affiliation(s)
- Chenxi Xie
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Xiaopei Hao
- The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou, 450008, People’s Republic of China
| | - Hao Yuan
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| | - Chongyu Wang
- The First Clinical Medical College of Xuzhou Medical University, Xuzhou, People’s Republic of China
| | - Razinah Sharif
- Center for Healthy Ageing & Wellness, Faculty of Health Sciences, University Kebangsaan Malaysia, Kuala Lumpur, 50300, Malaysia
- Biocompatibility Laboratory, Centre for Research and Instrumentation, University Kebangsaan Malaysia, UKM, Bangi, Selangor Darul Ehsan, 43600, Malaysia
| | - Haibo Yu
- Hepatobiliary Center, Department of Hepatobiliary Surgery, People’s Hospital of Zhengzhou University, Zhengzhou, People’s Republic of China
| |
Collapse
|
6
|
Maltby CJ, Krans A, Grudzien SJ, Palacios Y, Muiños J, Suárez A, Asher M, Khurana V, Barmada SJ, Dijkstra AA, Todd PK. AAGGG repeat expansions trigger RFC1-independent synaptic dysregulation in human CANVAS Neurons. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.12.13.571345. [PMID: 38168171 PMCID: PMC10760133 DOI: 10.1101/2023.12.13.571345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Cerebellar ataxia with neuropathy and vestibular areflexia syndrome (CANVAS) is a late onset, recessively inherited neurodegenerative disorder caused by biallelic, non-reference pentameric AAGGG(CCCTT) repeat expansions within the second intron of replication factor complex subunit 1 (RFC1). To investigate how these repeats cause disease, we generated CANVAS patient induced pluripotent stem cell (iPSC) derived neurons (iNeurons) and utilized calcium imaging and transcriptomic analysis to define repeat-elicited gain-of-function and loss-of-function contributions to neuronal toxicity. AAGGG repeat expansions do not alter neuronal RFC1 splicing, expression, or DNA repair pathway functions. In reporter assays, AAGGG repeats are translated into pentapeptide repeat proteins that selectively accumulate in CANVAS patient brains. However, neither these proteins nor repeat RNA foci were detected in iNeurons, and overexpression of these repeats in isolation did not induce neuronal toxicity. CANVAS iNeurons exhibit defects in neuronal development and diminished synaptic connectivity that is rescued by CRISPR deletion of a single expanded allele. These phenotypic deficits were not replicated by knockdown of RFC1 in control neurons and were not rescued by ectopic expression of RFC1. These findings support a repeat-dependent but RFC1-independent cause of neuronal dysfunction in CANVAS, with important implications for therapeutic development in this currently untreatable condition.
Collapse
Affiliation(s)
- Connor J. Maltby
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Amy Krans
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- Ann Arbor Veterans Administration Healthcare, Ann Arbor, MI, USA
| | - Samantha J. Grudzien
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- Neuroscience Graduate Program, University of Michigan, Ann Arbor, MI, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, USA
| | - Yomira Palacios
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- Postbaccalaureate Research Education Program, University of Michigan, Ann Arbor, MI, USA
| | - Jessica Muiños
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- UM SMART Undergraduate Summer Program, University of Michigan, Ann Arbor, MI, USA
| | - Andrea Suárez
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- Postbaccalaureate Research Education Program, University of Michigan, Ann Arbor, MI, USA
| | - Melissa Asher
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Vikram Khurana
- Department of Neurology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Sami J. Barmada
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
| | - Anke A. Dijkstra
- Department of Pathology, Amsterdam UMC, Amsterdam Neuroscience, Amsterdam, The Netherlands
- Swammerdam Institute for Life Sciences, University of Amsterdam, Amsterdam, The Netherlands
| | - Peter K. Todd
- Department of Neurology, University of Michigan, Ann Arbor, MI, USA
- Ann Arbor Veterans Administration Healthcare, Ann Arbor, MI, USA
| |
Collapse
|
7
|
Jin L, Zhang X, Fan M, Li W, Zhang X. NamiRNA-mediated high expression of KNSTRN correlates with poor prognosis and immune infiltration in hepatocellular carcinoma. Contemp Oncol (Pozn) 2023; 27:163-175. [PMID: 38239867 PMCID: PMC10793618 DOI: 10.5114/wo.2023.133507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 11/12/2023] [Indexed: 01/22/2024] Open
Abstract
Introduction Mutations of kinetochore-localized astrin/sperm-associated antigen 5 (KNSTRN) can interfere with chromatid cohesion, increase aneuploidy in tumours, and enhance tumourigenesis. However, the role of the KNSTRN-binding protein in hepatocellular carcinoma (HCC) remains unclear. Material and methods Using The Cancer Genome Atlas databases, we investigated the potential oncogenic functions of KNSTRN in HCC along with R and various computational tools. Results Detailed results revealed that elevated expression of KNSTRN was considerably associated with poor overall survival (HR = 1.48, 95% CI: 1.05-2.09, p = 0.027) and progress-free interval (HR = 1.41, 95% CI: 1.05-1.89, p = 0.021) in HCC. Gene ontology/Kyoto Encyclopedia of Genes and Genomes functional enrichment analysis showed that KNSTRN is closely related to organelle fission, chromosomal region, tubulin binding, and cell cycle signalling pathway. TIMER database analysis showed the correlations between KNSTRN expression and tumour-infiltrating immune cells, biomarkers of immune cells, and immune checkpoint expression. Moreover, the KNSTRN level was significantly positively associated with immunosuppressive cells in the tumour microenvironment, including regulatory T-cells, myeloid-derived suppressor cells, and cancer-associated fibrocytes. Finally, a possible nuclear activating miRNA (NamiRNA)-enhancer network of hsa-miR-107, which activates the KNSTRN expression in liver hepatocellular carcinoma, was constructed by correlation analysis. Conclusions NamiRNA-mediated upregulation of KNSTRN correlated with poor prognosis and tumour immune infiltration in HCC. KNSTRN could serve as an effective biomarker for the diagnosis and prognosis of HCC and support the development of novel therapeutic strategies.
Collapse
Affiliation(s)
- Liang Jin
- Department of Hepatobiliary Surgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| | - Xiaojing Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| | - Ming Fan
- Department of Hepatobiliary Surgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| | - Weimin Li
- Department of Hepatobiliary Surgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| | - Xuan Zhang
- Department of Hepatobiliary Surgery, Xijing Hospital, Air Force Medical University, Xi’an, Shaanxi, China
| |
Collapse
|
8
|
Liu Z, Yang F, Xiao Z, Liu Y. Review of novel functions and implications of circular RNAs in hepatocellular carcinoma. Front Oncol 2023; 13:1093063. [PMID: 36890830 PMCID: PMC9986438 DOI: 10.3389/fonc.2023.1093063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/27/2023] [Indexed: 02/22/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most frequent malignancies, with high incidence and mortality. As the majority of HCC patients are diagnosed at an advanced stage and die of recurrence and metastasis, its pathology and new biomarkers are needed. Circular RNAs (circRNAs) are a large subclass of long non-coding RNAs (lncRNAs) with covalently closed loop structures and abundant, conserved, stable, tissue-specific expression in mammalian cells. CircRNAs exert multiple functions in HCC initiation, growth and progression, serving as promising biomarkers for diagnosis, prognosis and therapeutic targets for this disease. This review briefly describes the biogenesis and biological functions of circRNAs and elucidates the roles of circRNAs in the development and progression of HCC, especially regarding epithelial-mesenchymal transition (EMT), drug resistance and interactions with epigenetic modifications. In addition, this review highlights the implications of circRNAs as potential biomarkers and therapeutic targets for HCC. We hope to provide novel insight into the roles of circRNAs in HCC.
Collapse
Affiliation(s)
- Zheng Liu
- Department of Combination of Traditional Chinese Medicine and Western Medicine, School of Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| | - Fangming Yang
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Zhun Xiao
- Department of Digestive Diseases, The First Affiliated Hospital of Henan University of Chinese Medicine, Zhengzhou, China
| | - Yuexuan Liu
- Department of Combination of Traditional Chinese Medicine and Western Medicine, School of Medicine, Henan University of Chinese Medicine, Zhengzhou, China
| |
Collapse
|
9
|
Josipovic N, Ebbesen KK, Zirkel A, Danieli-Mackay A, Dieterich C, Kurian L, Hansen TB, Papantonis A. circRAB3IP modulates cell proliferation by reorganizing gene expression and mRNA processing in a paracrine manner. RNA (NEW YORK, N.Y.) 2022; 28:1481-1495. [PMID: 35973723 PMCID: PMC9745835 DOI: 10.1261/rna.079195.122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/01/2022] [Indexed: 05/18/2023]
Abstract
Circular RNAs are an endogenous long-lived and abundant noncoding species. Despite their prevalence, only a few circRNAs have been dissected mechanistically to date. Here, we cataloged nascent RNA-enriched circRNAs from primary human cells and functionally assigned a role to circRAB3IP in sustaining cellular homeostasis. We combined "omics" and functional experiments to show how circRAB3IP depletion deregulates hundreds of genes, suppresses cell cycle progression, and induces senescence-associated gene expression changes. Conversely, excess circRAB3IP delivered to endothelial cells via extracellular vesicles suffices for accelerating their division. We attribute these effects to an interplay between circRAB3IP and the general splicing factor SF3B1, which can affect transcript variant expression levels of cell cycle-related genes. Together, our findings link the maintenance of cell homeostasis to the presence of a single circRNA.
Collapse
Affiliation(s)
- Natasa Josipovic
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Karoline K Ebbesen
- Department of Molecular Biology and Genetics (MBG), Aarhus University, 8000 Aarhus, Denmark
- Interdisciplinary Nanoscience Centre (iNANO), Aarhus University, 8000 Aarhus, Denmark
| | - Anne Zirkel
- Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany
| | - Adi Danieli-Mackay
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
| | - Christoph Dieterich
- Bioinformatics and Systems Cardiology, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Leo Kurian
- Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany
- Institute of Neurophysiology, University of Cologne, 50931 Cologne, Germany
| | - Thomas B Hansen
- Department of Molecular Biology and Genetics (MBG), Aarhus University, 8000 Aarhus, Denmark
| | - Argyris Papantonis
- Institute of Pathology, University Medical Center Göttingen, 37075 Göttingen, Germany
- Center for Molecular Medicine Cologne, University of Cologne, 50931 Cologne, Germany
| |
Collapse
|
10
|
Zhang L, Zhang P, Liu T, Li D, Liu X. Circ_0006404 enhances hepatocellular carcinoma progression by regulating miR-624. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:69980-69987. [PMID: 35579835 DOI: 10.1007/s11356-021-17574-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 11/12/2021] [Indexed: 06/15/2023]
Abstract
Growing studies have demonstrated that circRNAs (circular RNAs) act potential roles in tumor metastasis and progression. However, the expression and function of circ_0006404 in hepatocellular carcinoma (HCC) remain to be investigated. The expression of circ_0006404 and miR-624 was detected by qRT-PCR. CCK-8 assay, flow cytometry, and wound healing were performed to determine cell proliferation, cycle, and migration. The target of circ_0006404 was studied by bioinformatics and luciferase activity analysis. Our data indicated that circ_0006404 was overexpressed in HCC specimens and cells and ectopic expression of circ_0006404 increased HCC cell growth, cycle, and migration. Moreover, we showed that miR-624 was downregulated in HCC specimens and cells and miR-624 expression was negatively correlated with circ_0006404 expression in HCC specimens. Circ_0006404 sponged miR-624 in HCC cell, and the overexpression of circ_0006404 suppressed miR-624 expression in HCC cell. Furthermore, circ_0006404 induced HCC cell growth, cycle, and migration via regulating miR-624. These results elucidated that circ_0006404 facilitated HCC progression and might act as one new biomarker for this carcinoma.
Collapse
Affiliation(s)
- Liguo Zhang
- Department of Infectious Diseases, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
| | - Ping Zhang
- Department One of Oncology, Binzhou People's Hospital, Binzhou, Shandong, China
| | - Tonggang Liu
- Department of Infectious Diseases, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China.
| | - Dongmei Li
- Department of Infectious Diseases, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China
| | - Xianxian Liu
- Department of Infectious Diseases, Binzhou Medical University Hospital, Binzhou, 256603, Shandong, China.
| |
Collapse
|
11
|
GRAMD1A Is a Biomarker of Kidney Renal Clear Cell Carcinoma and Is Associated with Immune Infiltration in the Tumour Microenvironment. DISEASE MARKERS 2022; 2022:5939021. [PMID: 35860689 PMCID: PMC9293538 DOI: 10.1155/2022/5939021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 05/18/2022] [Accepted: 06/25/2022] [Indexed: 11/17/2022]
Abstract
Background GRAM structural domain-containing protein 1A (GRAMD1A) is upregulated in a variety of human cancer tissues and is closely associated with tumourigenesis and progression. Methods Patient RNA-sequencing data and clinicopathological information were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) datasets. The expression of GRAMD1A in kidney cancer cell lines and KIRC patients was analysed by quantitative polymerase chain reaction (qPCR). Receiver Operator Characteristic (ROC) curves, nomograms, Kaplan-Meier analysis, forest plots, and COX analysis were used to assess the diagnostic and prognostic value of GRAMD1A in KIRC, and gene set enrichment analysis (GSEA) was used to explore its potential signalling pathways. In addition, the Sangerbox website, Kaplan-Meier plotter database, and TISIDB and TIMER databases were used to further analyse the correlation of GRAMD1A with microsatellite instability (MSI), tumour mutational burden (TMB), immune checkpoint genes, and tumour-infiltrating lymphocytes (TILs). Results GRAMD1A was significantly highly expressed in KIRC and associated with shorter overall survival and relapse-free survival (P < 0.05). The AUC value of the ROC curve to identify KIRC and normal renal tissues was 0.942. Forest plot and COX analysis visualized that GRAMD1A could be an independent prognostic factor in KIRC patients (P < 0.01), and nomograms to determine the overall survival (OS) of KIRC patients also showed good efficacy (C-index: 0.776). Moreover, Spearman correlation analysis showed a positive correlation between GRAMD1A and MSI, TMB (P < 0.01). On the other hand, GRAMD1A was also found to be closely associated with immune checkpoint genes. Meanwhile, patients with KIRC with high GRAMD1A expression had a relatively low hazard ratio (HR) of death when B lymphocytes, natural killer T cells, CD4+ T lymphocytes, CD8+ T lymphocytes, and macrophages were enriched in the tumour microenvironment (TME), and a greater HR of death when regulatory T lymphocytes with tumour-specific immunosuppressive effects were significantly enriched. Last, GSEA shows that GRAMD1A is closely associated with the regulation of energy metabolism in KIRC. Conclusions GRAMD1A is a promising diagnostic and prognostic biomarker for patients with KIRC, and its biological function correlates to some extent with immune infiltration in TME.
Collapse
|
12
|
Li Y, Li R, Cheng D, Fu X, Fu L, Peng S. The potential of CircRNA1002 as a biomarker in hepatitis B virus-related hepatocellular carcinoma. PeerJ 2022; 10:e13640. [PMID: 35782101 PMCID: PMC9248787 DOI: 10.7717/peerj.13640] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 06/06/2022] [Indexed: 01/17/2023] Open
Abstract
Background Although hepatocellular carcinoma (HCC) is the most common type of primary liver cancer, there is a lack of effective diagnostic measures. Circular RNAs (circRNAs) can be used as biomarkers for monitoring the occurrence and development of HCC. However, a convenient and reliable serum circRNA biomarker is not currently available. Materials & Methods CircRNA expression profiles were explored using high-throughput sequencing technology, and targeted circRNAs and mRNAs were validated by quantitative reverse transcription PCR (RT-qPCR). The biological functions of circRNAs were investigated using Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis. Downstream miRNAs and mRNAs of dysregulated circRNAs were predicted using TargetScan, miRanda, and miRDB; then circRNA-miRNA-mRNA interaction networks were constructed based on sequencing data and the Cancer Genome Atlas (TCGA). Results A total of 50,327 circRNAs were identified, with 1,187 circRNAs significantly differentially expressed between hepatitis B virus (HBV)-related HCC and HBV asymptomatic carriers. Among these circRNAs, four (circRNA1002, circRNA7941, circRNA 39338, and circRNA44142) were validated by RT-qPCR as being statistically different either in HCC tissue or serum samples. circRNA1002 was significantly down-regulated in both HCC serum and tissue, indicating its reliability. Bioinformatics analysis showed that circRNA1002-associated genes were enriched in GO terms relating to hormone pathway and cell-cell interaction processes, which are involved in the progression of HCC. Conclusion Our circRNA analysis of HCC patients and HBV asymptomatic carriers showed that circRNA1002 may be a reliable serum biomarker for HCC. These results could provide an improved assay for the early detection of HCC.
Collapse
Affiliation(s)
- Ying Li
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha Hunan, China
| | - Ronghua Li
- Department of Nuclear Medicine, Xiangya Hospital, Central South University, Changsha Hunan, China
| | - Da Cheng
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha Hunan, China
| | - Xiaoyu Fu
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha Hunan, China
| | - Lei Fu
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha Hunan, China
| | - Shifang Peng
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha Hunan, China
| |
Collapse
|
13
|
Lin G, Li J, Chen K, Wang A, Guo C. Circ_0000854 regulates the progression of hepatocellular carcinoma through miR-1294 /IRGQ axis. Clin Immunol 2022; 238:109007. [PMID: 35417749 DOI: 10.1016/j.clim.2022.109007] [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: 09/25/2021] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 12/28/2022]
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a common cancer disease with the second highest mortality. Circular RNAs (circRNAs) have been shown to play key roles in many tumors, including HCC. However, the function of circ_0000854 in the progression of HCC has not been clarified. METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the expression levels of circ_0000854, microRNA-1294 (miR-1294) and immunity related GTPase Q (IRGQ) in HCC cells and tissues. Western blot was used for protein expression analysis. Cell processes were detected by 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium Bromide (MTT) assay, thymidine analog 5-ethynyl-2'-deoxyuridine (EdU) assay, transwell assay, flow cytometry, and wound healing assay. Mechanically, the interaction of miR-1294 with circ_0000854 or IRGQ was notarized by dual-luciferase reporter assay and RNA pull-down assay. The xenotransplantation model was established to study the role of circ_0000854 in vivo. RESULTS Circ_0000854 and IRGQ were highly expressed in HCC tissues and cells, while miR-1294 was downregulated. Silencing circ_0000854 suppressed HCC cell malignant behaviors, including proliferation, cell cycle progression, migration and invasion. Circ_0000854 exhibited sponge effect on miR-1294 and miR-1294 inhibition reversed function of circ_0000854 knockdown. In addition, miR-1294 targeted IRGQ and circ_0000854 sponged miR-1294 to upregulate IRGQ. Overexpression of IRGQ restored miR-1294-induced anti-tumor regulation in HCC cells. Animal experiments confirmed that silencing circ_0000854 inhibited tumor growth and metastasis of HCC via mediating miR-1294 and IRGQ levels in vivo. CONCLUSION Circ_0000854 accelerated HCC progression via the miR-1294/IRGQ axis, providing a novel regulatory mechanism for HCC pathogenesis.
Collapse
Affiliation(s)
- Guanbin Lin
- Tongji University School of Medicine, Shanghai 200092, China; Department of Gastroenterology, Beilun People's Hospital in Ningbo, Ningbo 315800, Zhejiang, China
| | - Jingjing Li
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Kan Chen
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Aiping Wang
- Department of Health Management Center, Beilun People's Hospital in Ningbo, Ningbo 315800, Zhejiang, China
| | - Chuanyong Guo
- Department of Gastroenterology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
| |
Collapse
|
14
|
Wang H, Zhang X, Qiao L, Wang H. CircRNA circ_0000554 promotes ovarian cancer invasion and proliferation by regulating miR-567. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:19072-19080. [PMID: 34709546 DOI: 10.1007/s11356-021-13710-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 03/25/2021] [Indexed: 06/13/2023]
Abstract
Circular RNAs (circRNAs) indicated potential modulating effects in tumor development. However, the specific role of circ_0000554 in ovarian tumor remains unknown. We found that circ_0000554 was overexpressed in ovarian tumor specimens and cells. Forced expression of circ_0000554 promoted cell growth, invasion, and epithelial to mesenchymal transition (EMT). We illustrated that miR-567 was downregulated in ovarian tumor specimens and cells. circ_0000554 was negatively correlated with miR-567 in ovarian tumor specimens. circ_0000554 sponged miR-567 expression in ovarian tumor. RIP assay showed that elevated expression of miR-567 could be enriched with circ_0000554. Luciferase reporter assay indicated that luciferase intensity was inhibited after treated with miR-567 mimic; however, the luciferase value of mut type was not decreased. Elevated expression of circ_0000554 suppressed miR-567 expression in HO8910 cell. circ_0000554 promoted ovarian tumor cell growth, invasion, and EMT via sponging miR-567. It suggested that circ_0000554 represent a potential therapy target for ovarian tumor.
Collapse
Affiliation(s)
- Hui Wang
- Department of Gynaecology and Obstetrics, Shengli Oilfield Central Hospital, Dongying, 57000, Shandong, China
| | - Xuezhong Zhang
- Department of Laboratory Medicine, Zibo Central Hospital, Zibo, 255036, Shandong, China
| | - Lujun Qiao
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, 257000, Shandong, China
| | - Heng Wang
- Intensive Care Unit, Shengli Oilfield Central Hospital, Dongying, 257000, Shandong, China.
| |
Collapse
|
15
|
Wang Y, Yan Q, Mo Y, Liu Y, Wang Y, Zhang S, Guo C, Wang F, Li G, Zeng Z, Xiong W. Splicing factor derived circular RNA circCAMSAP1 accelerates nasopharyngeal carcinoma tumorigenesis via a SERPINH1/c-Myc positive feedback loop. Mol Cancer 2022; 21:62. [PMID: 35227262 PMCID: PMC8883650 DOI: 10.1186/s12943-022-01502-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/06/2022] [Indexed: 01/04/2023] Open
Abstract
Background Circular RNAs play an important role in tumor genesis and progression, but they have not been sufficiently studied in patients with nasopharyngeal carcinoma (NPC). Methods The circular RNA, circCAMSAP1, was screened in NPC cells by RNA sequencing analysis. The expression of circCAMSAP1 in NPC tissues was examined by real-time quantitative polymerase chain reaction (RT-qPCR) and in situ hybridization. Wound-healing, transwell, MTT and flow cytometry assays, and nude mouse tumor models were used to explore the effect of circCAMSAP1 on proliferation and metastasis of NPC in vitro or in vivo. The downstream proteins regulated by circCAMSAP1 were screened using mass spectrometry. The interaction between circCAMSAP1 and the SERPINH1 mRNA was identified using the circular RNA immunoprecipitation method and the luciferase reporter assay. The interaction between SERPINH1 and transcription factor c-Myc was verified through Co-immunoprecipitation (Co-IP) and immunofluorescence. The effect of c-Myc on the generation of circCAMSAP1 was examined through RT-qPCR and chromatin immunoprecipitation. Finally, the splicing factors that promote the production of circCAMSAP1 were explored by RT-qPCR and RNA immunoprecipitation (RIP). Results We found that circCAMSAP1 was highly expressed in NPC tissues and promoted NPC proliferation and metastasis. Additionally, circCAMSAP1 promoted SERPINH1 expression through improved SERPINH1 mRNA stability by binding to the 3′-untranslated region (3’UTR) of SERPINH1. Highly expressed SERPINH1 reduced the ubiquitination-degradation rate of c-Myc, causing increased tumorigenesis. Meanwhile, c-Myc, cooperating with splicing factor 10 (SRSF10), could also promote CAMSAP1 pre-mRNA transcription and back-splicing, forming a positive feedback of circCAMSAP1 production, resulting in the proliferation and metastasis of NPC. Conclusions Our findings revealed that circCAMSAP1 promotes NPC proliferation and metastasis by binding to the 3’UTR of SERPINH1, suggesting that the positive feedback of circCAMSAP1-SERPINH1-c-Myc may serve as a prognostic biomarker or therapeutic target in patients with NPC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-022-01502-2.
Collapse
|
16
|
Wei C, Wang B, Chen ZH, Xiao H, Tang L, Guan JF, Yuan RF, Yu X, Hu ZG, Wu HJ, Dai Z, Wang K. Validating RRP12 Expression and Its Prognostic Significance in HCC Based on Data Mining and Bioinformatics Methods. Front Oncol 2022; 12:812009. [PMID: 35178347 PMCID: PMC8844371 DOI: 10.3389/fonc.2022.812009] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 01/11/2022] [Indexed: 12/26/2022] Open
Abstract
RRP12 (ribosomal RNA processing 12 homolog) is a nucleolar protein involved in the maturation and transport of eukaryotic ribosomal subunits and is a type of RNA binding protein. In recent years, considerable research has indicated that RRP12 is associated with the occurrence and development of multiple cancers. However, there is no research on RRP12 in hepatocellular carcinoma. Herein, we aimed to explore the role and significance of RRP12 in hepatocellular carcinoma.We used the TIMER and GEPIA databases to perform pan-cancer analyses of RRP12. The impact of RRP12 on the prognosis was analyzed through the GEPIA database. The relationship between RRP12 and immune cell infiltration was investigated by TIMER and GEPIA databases. Moreover, the expression of RRP12 in various liver cancer cells was evaluated by Western Blot to determine the cell line for the next experiment. Scratch test, Transwell test, and Edu tests were applied to validate the effects of RRP12 on the function of liver cancer cells. And the data were statistically analyzed.Pan-cancer analysis found that RPP12 was significantly upregulated in many cancers. Moreover, the prognostic analysis revealed that the difference in the expression of RRP12 has statistical significance for the overall survival rate and disease-free survival rate of liver cancer patients. In order to analyze the correlation between the expression level of RRP12 and clinical parameters, it was found that there was a significant negative correlation with tumor stage, tumor grade and tumor size. Univariate and multivariate analysis showed that RRP12 could be used as an independent prognostic factor for patients with hepatocellular carcinoma. Cellular experiments have proved that knocking down RRP12 can inhibit the proliferation, invasion, and metastasis of liver cancer cells.Therefore, RRP12 significantly affects the occurrence and development of HCC. Hence, RRP12 can become a potential target and prognostic biomarker for the treatment of hepatocellular carcinoma.
Collapse
Affiliation(s)
- Chao Wei
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China
| | - Ben Wang
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China
| | - Zhong-Huo Chen
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China
| | - Han Xiao
- Department of Hepato-Biliary-Pancreatic Surgery, Jiujiang First People's Hospital, Jiujiang, China
| | - Lei Tang
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Key Laboratory of Molecular Medicine, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China
| | - Jia-Fu Guan
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China
| | - Rong-Fa Yuan
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Provincial Clinical Research Center for General Surgery Disease, Nanchang, China
| | - Xin Yu
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Provincial Clinical Research Center for General Surgery Disease, Nanchang, China
| | - Zhi-Gang Hu
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Provincial Clinical Research Center for General Surgery Disease, Nanchang, China
| | - Hua-Jun Wu
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Provincial Clinical Research Center for General Surgery Disease, Nanchang, China
| | - Zhi Dai
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kai Wang
- Hepato-Biliary-Pancreatic Surgery Division, Department of General Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Province Engineering Research Center of Hepatobiliary Disease, Nanchang, China.,Second Affiliated Hospital of Nanchang University, Jiangxi Provincial Clinical Research Center for General Surgery Disease, Nanchang, China
| |
Collapse
|
17
|
Wang Y, Li X, Wang H, Zhang G. CircCAMSAP1 promotes non-small cell lung cancer proliferation and inhibits cell apoptosis by sponging miR-1182 and regulating BIRC5. Bioengineered 2022; 13:2428-2439. [PMID: 35132928 PMCID: PMC8974160 DOI: 10.1080/21655979.2021.2011639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Recently, various studies have suggested that circular RNAs (circRNAs) are ubiquitous in various malignant events, including non-small cell lung cancer (NSCLC) and are closely related to cell proliferation and apoptosis. Unfortunately, the molecular functions involved in this action still have little overlap. Therefore, this study aimed to identify a novel circCAMSAP1 role in NSCLC. Overexpression of circCAMSAP1 has been demonstrated in NSCLC lung tissues and cell lines. Sequencing and RNase R experiments were planned to determine whether circCAMSAP1 is looped and exists in NSCLC. We also found that downregulated circCAMSAP1 repressed cell proliferation and increased apoptosis of NSCLC cells in vitro and suppressed xenograft tumor growth in vivo. Furthermore, a luciferase assay revealed that circCAMSAP1 could regulate baculoviral inhibitor of apoptosis protein (IAP) repeat containing 5 (BIRC5, also known as survivin) expression by directly binding to miR-1182. However, BIRC5 without 3ʹ untranslated regions (3ʹUTR) could reverse the influence of downregulated circCAMSAP1 on proliferation and apoptosis in NSCLC. Together, our findings reveal a novel mechanism by which the circCAMSAP1/miR-1182/BIRC5 axis promotes NSCLC progression.
Collapse
Affiliation(s)
- Yunfei Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xiaobo Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Huaqi Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Guojun Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| |
Collapse
|
18
|
Pu Z, Lu J, Yang X. Emerging Roles of Circular RNAs in Vascular Smooth Muscle Cell Dysfunction. Front Genet 2022; 12:749296. [PMID: 35126447 PMCID: PMC8807483 DOI: 10.3389/fgene.2021.749296] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022] Open
Abstract
Atherosclerosis is the major pathophysiological basis of cerebrovascular and cardiovascular diseases. Vascular smooth muscle cells (VSMCs) constitute the main structure of vasculature and play important roles in maintaining vascular tone and blood pressure. Many biological processes and cellular signaling events involved in atherosclerogenesis have been shown to converge on deregulating VSMC functions. However, the molecular mechanisms underlying dysfunctional VSMC in atherosclerosis are still poorly defined. Recent evidence revealed that circular RNAs (circRNAs) are closely related to diseases such as degenerative diseases, tumor, congenital diseases, endocrine diseases and cardiovascular diseases. Several studies demonstrated that circRNAs (e.g., circACTA2, Circ-SATB2, circDiaph3, circ_0020397, circTET3, circCCDC66) played critical roles in the regulation of VSMC proliferation, migration, invasion, and contractile-to-synthetic phenotype transformation by sponging microRNAs (e.g., miR-548f-5p, miR-939, miR-148a-5p, miR-138, miR-351-5p, miR-342-3p). This review describes recent progress in the profiling of circRNAs by transcriptome analysis in VSMCs and their molecular functions in regulating VSMC proliferation and migration.
Collapse
Affiliation(s)
| | - Jingbo Lu
- *Correspondence: Jingbo Lu, ; Xiaohan Yang,
| | | |
Collapse
|
19
|
Tu Q, You X, He J, Hu X, Xie C, Xu G. Circular RNA Circ-0003006 Promotes Hepatocellular Carcinoma Proliferation and Metastasis Through Sponging miR-542-3p and Regulating HIF-1A. Cancer Manag Res 2021; 13:7859-7870. [PMID: 34675680 PMCID: PMC8520847 DOI: 10.2147/cmar.s315894] [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: 05/13/2021] [Accepted: 09/30/2021] [Indexed: 12/12/2022] Open
Abstract
Introduction Hepatocellular carcinoma (HCC) is one most common cancer types among gastrointestinal cancer over the world, while its underlying mechanisms remain unclear. CircRNA has been revealed to participate in multiple biological functions and contribute to various diseases’ progression. Methods Bioinformatic analysis of the differently expressed circRNAs in the HCC tissues, then verified by real-time quantitative PCR (RT-qPCR) assay. We found that circ-0003006 was upregulated in the HCC tissues, the cell fractionation assay and RNA fluorescence in situ hybridization (FISH) were performed to confirm the cell location of circ-0003006. shRNA silence assay was used to knock down the expression of circ-0003006 in the HCC cells. Results Cell account kit 8 (CCK-8) and transwell assay were revealed that circ-0003006 knockdown inhibited the proliferation and metastasis in HCC cells. The target miR‑542‑3p and target gene HIF-1A were predicted by bioinformatics analysis, then verified through biotinylated RNA pull-down and dual-luciferase reporter assays. The mechanism, circ-0003006, probably acted as a sponge of miR‑542‑3p and regulated HIF-1A levels in hepatocellular carcinoma cells. Moreover, HIF-1A overexpression abolished the effect of circ-0003006 inhibition on the progression of hepatocellular carcinoma cells. The subcutaneous tumor formation experiment indicated that circ-0003006 knockdown inhibited the HCC cell growth in vivo. Conclusion Circ-0003006 was demonstrated to promote HCC progression in vitro and in vivo by sponging miR‑542‑3p to release the inhibition on HIF-1A.
Collapse
Affiliation(s)
- Qiang Tu
- Department of Hepatobiliary Oncology Surgery, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China.,Department of Oncology Interventional, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Xiaoxiang You
- Department of Hepatobiliary Oncology Surgery, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China.,Department of Oncology Interventional, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Jun He
- Department of Hepatobiliary Oncology Surgery, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China.,Department of Oncology Interventional, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Xuguang Hu
- Department of Hepatobiliary Oncology Surgery, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China.,Department of Oncology Interventional, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Changji Xie
- Department of Hepatobiliary Oncology Surgery, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China.,Department of Oncology Interventional, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China
| | - Guohui Xu
- Department of Hepatobiliary Oncology Surgery, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China.,Department of Oncology Interventional, Jiangxi Cancer Hospital of Nanchang University, Nanchang, People's Republic of China
| |
Collapse
|
20
|
Circular RNA circ_0073181 contributes to tumorigenesis by regulating protein tyrosine phosphatase receptor type E via miR-548p in hepatocellular carcinoma. Anticancer Drugs 2021; 33:167-177. [PMID: 34657099 DOI: 10.1097/cad.0000000000001258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hepatocellular carcinoma (HCC) is a major world public problem in the world, with high morbidity and mortality rates. Circular RNA (circRNA) circ_0073181 has been reported to be related to HCC development. However, the mechanism of circ_0073181 in HCC is far from being addressed. Circ_0073181, microRNA-548p (miR-548p) and protein tyrosine phosphatase receptor type E (PTPRE) level were detected by real-time quantitative PCR (RT-qPCR). Cell proliferation, migration, invasion and apoptosis were detected by Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine, wound healing, transwell and flow cytometry assay. Protein levels of proliferating cell nuclear antigen, Bcl-2 related X protein (Bax) and PTPRE were examined by western blot assay. The binding relationship between miR-548p and circ_0073181 or PTPRE was predicted by circular RNA interactome and targetScan and then verified by a dual-luciferase reporter and RNA immunoprecipitation (RIP) assays. The biologic role of circ_0073181 on HCC tumor growth was examined by the xenograft tumor model in vivo. Circ_0073181 and PTPRE were upregulated, and miR-548p was decreased in HCC tissues and cells. Furthermore, circ_0073181 knockdown could boost proliferation, migration, invasion and repress apoptosis of HCC cells in vitro. The mechanical analysis suggested that circ_0073181 could regulate PTPRE expression by sponging miR-548p. In addition, circ_0073181 knockdown suppressed cell growth of HCC in vivo. Circ_0073181 silencing could inhibit HCC cell growth and metastasis partly by regulating the miR-548p/ PTPRE axis, providing a promising therapeutic target for the HCC treatment.
Collapse
|
21
|
Ni C, Yang S, Ji Y, Duan Y, Yang W, Yang X, Li M, Xie J, Zhang C, Lu Y, Lu H. Hsa_circ_0011385 knockdown represses cell proliferation in hepatocellular carcinoma. Cell Death Discov 2021; 7:270. [PMID: 34599150 PMCID: PMC8486831 DOI: 10.1038/s41420-021-00664-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 08/24/2021] [Accepted: 09/20/2021] [Indexed: 02/08/2023] Open
Abstract
Circular RNAs (circRNAs), continuous loops of single-stranded RNA, regulate gene expression during the development of various cancers. However, the function of circRNAs in hepatocellular carcinoma (HCC) is rarely discussed. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine the mRNA levels of circ_0011385, miR-361-3p, and STC2 in 96 pairs of HCC tissues (tumor tissues and adjacent normal tissues), HCC cell lines, and L02 (human normal liver cell line) cells. The relationships between circ_0011385 expression and clinical features of HCC were evaluated. Functional experiments in vitro or in vivo were used to evaluate the biological function of circ_0011385. Bioinformatics analysis was performed to predict miRNAs and mRNAs sponged by circ_0011385. RNA immunoprecipitation (RIP) and dual-luciferase reporter gene assays were used to elucidate the interactions among circ_0011385, miR-361-3p, and STC2 (stanniocalcin 2). ChIP and dual-luciferase reporter gene assays were used to identify the upstream regulator of circ_0011385. High expression of circ_0011385 was observed in HCC tissues and cell lines and was significantly associated with tumor size, TNM stage, and prognosis. In addition, inhibition of circ_0011385 expression prevented the proliferation of HCC cells in vitro and in vivo. Circ_0011385 sponged miR-361-3p, thereby regulating the mRNA expression of STC2. In addition, the transcription of circ_0011385 was regulated by SP3. Circ_0011385 knockdown suppressed cell proliferation and tumor activity in HCC. Circ_0011385 may therefore serve as a new biomarker in the diagnosis and treatment of HCC.
Collapse
Affiliation(s)
- Chuangye Ni
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China
| | - Shikun Yang
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China
| | - Yang Ji
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China
| | - Yunfei Duan
- Department of Hepatobiliary Surgery, The First People's Hospital of Changzhou, The Third Hospital Affiliated to Soochow University, Changzhou, 213000, China
| | - Wenjie Yang
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China
| | - Xinchen Yang
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China
| | - Min Li
- Department of Hepatobiliary Surgery, The First People's Hospital of Changzhou, The Third Hospital Affiliated to Soochow University, Changzhou, 213000, China
| | - Jun Xie
- Department of Hepatobiliary Surgery, The First People's Hospital of Changzhou, The Third Hospital Affiliated to Soochow University, Changzhou, 213000, China
| | - Chuanyong Zhang
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China.
| | - Yunjie Lu
- Department of Hepatobiliary Surgery, The First People's Hospital of Changzhou, The Third Hospital Affiliated to Soochow University, Changzhou, 213000, China.
| | - Hao Lu
- Hepatobiliary/Liver Transplantation Center, The First Affiliated Hospital of Nanjing Medical University; Key Laboratory of Liver Transplantation, Chinese Academy of Medical Sciences, Nanjing, 210029, China.
| |
Collapse
|
22
|
Liao R, Liu L, Zhou J, Wei X, Huang P. Current Molecular Biology and Therapeutic Strategy Status and Prospects for circRNAs in HBV-Associated Hepatocellular Carcinoma. Front Oncol 2021; 11:697747. [PMID: 34277444 PMCID: PMC8284075 DOI: 10.3389/fonc.2021.697747] [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: 04/20/2021] [Accepted: 06/11/2021] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) are newly classified noncoding RNA (ncRNA) members with a covalently closed continuous loop structure that are involved in immune responses against hepatitis B virus (HBV) infections and play important biological roles in the occurrence and pathogenesis of HCC progression. The roles of circRNAs in HBV-associated HCC (HBV-HCC) have gained increasing attention. Substantial evidence has revealed that both tissue and circulating circRNAs may serve as potential biomarkers for diagnostic, prognostic and therapeutic purposes. So far, at least four circRNA/miRNA regulatory axes such as circRNA_101764/miR-181, circRNA_100338/miR-141-3p, circ-ARL3/miR-1305, circ-ATP5H/miR-138-5p, and several circulating circRNAs were reported to be associated with HBV-HCC development. Notably, TGF/SMAD, JAK/STAT, Notch and Wnt/β-catenin signaling pathways may play pivotal roles in this HBV-driven HCC via several circRNAs. Moreover, in non-HBV HCC patients or HCC patients partially infected by HBV, numerous circRNAs have been identified to be important regulators impacting the malignant biological behavior of HCC. Furthermore, the role of circRNAs in HCC drug resistance has become a focus of research with the aim of reversing chemoresistance and immune resistance. Herein, we review the molecular biology of circRNAs in HBV-HCC and their potential in therapeutic strategies.
Collapse
Affiliation(s)
- Rui Liao
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lei Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jian Zhou
- Department of Hepatobiliary Surgery, The People's Rongchang Hospital, Chongqing, China
| | - Xufu Wei
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ping Huang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| |
Collapse
|
23
|
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.
Collapse
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
| |
Collapse
|
24
|
Lou W, Wang W, Chen J, Wang S, Huang Y. ncRNAs-mediated high expression of SEMA3F correlates with poor prognosis and tumor immune infiltration of hepatocellular carcinoma. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 24:845-855. [PMID: 34026328 PMCID: PMC8121632 DOI: 10.1016/j.omtn.2021.03.014] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 03/25/2021] [Indexed: 01/04/2023]
Abstract
Hepatocellular carcinoma (HCC) is notorious for its poor prognosis. Increasing evidence has demonstrated that semaphorin 3F (SEMA3F) plays key roles in initiation and progression of several types of human cancer. However, the specific role and mechanism of SEMA3F in HCC remains not fully determined. In this study, we first performed pan-cancer analysis for SEMA3F’s expression and prognosis using The Cancer Genome Atlas (TCGA) and The Genotype-Tissue Expression (GTEx) data and found that SEMA3F might be a potential oncogene in HCC. Subsequently, noncoding RNAs (ncRNAs) contributing to SEMA3F overexpression were identified by a combination of a series of in silico analyses, including expression analysis, correlation analysis, and survival analysis. Finally, the TMPO-AS1/SNHG16-let-7c-5p axis was identified as the most potential upstream ncRNA-related pathway of SEMA3F in HCC. Moreover, SEMA3F level was significantly positively associated with tumor immune cell infiltration, biomarkers of immune cells, and immune checkpoint expression. Collectively, our findings elucidated that ncRNAs-mediated upregulation of SEMA3F correlated with poor prognosis and tumor immune infiltration in HCC.
Collapse
Affiliation(s)
- Weiyang Lou
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Wenlong Wang
- Intensive Care Unit, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Jing Chen
- Department of Oncology, The First Affiliated Hospital of Jiaxing University, Jiaxing, 314000 Zhejiang, China
| | - Shuqian Wang
- Department of Breast Surgery, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003 Zhejiang, China
| | - Yuan Huang
- Department of Breast Medical Oncology, The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou, 310022 Zhejiang, China
| |
Collapse
|
25
|
Luo Z, Lu L, Tang Q, Wei W, Chen P, Chen Y, Pu J, Wang J. CircCAMSAP1 promotes hepatocellular carcinoma progression through miR-1294/GRAMD1A pathway. J Cell Mol Med 2021; 25:3793-3802. [PMID: 33484498 PMCID: PMC8051675 DOI: 10.1111/jcmm.16254] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 12/15/2020] [Accepted: 12/18/2020] [Indexed: 12/31/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the most common cancers with high prevalence and mortality, and it has brought huge economic and health burden for the world. It is urgent to found novel targets for HCC diagnosis and clinical intervention. Circular RNA (circRNA) has been reported to participate in many cancer progressions including HCC, suggesting that circRNA might paly essential role in HCC initiation and progression. Our study aims to found that potential circRNA participates in HCC development and its underlying molecular mechanisms. We obtained three pairs of HCC tissues and its adjacent normal tissues data from GEO DataSets. MTT, cell colony, EdU, wound-healing, transwell invasion and mouse xenograft model assays were used to demonstrate the biological functions of circCAMSAP1 in HCC progression. Furthermore, we conducted bioinformatics analysis, AGO2-RIP, RNA pull-down and luciferase reporter assays to assess the association of circCAMSAP1-miR-1294-GRAMD1A axis in HCC cells. The expression of circCAMSAP1 was up-regulated in HCC tissues compared with its adjacent normal tissues. Up-regulation of circCAMSAP1 promoted HCC biological functions both in vitro and in vivo. The promotive effects of circCAMSAP1 on HCC progression function through miR-1294/GRAMD1A pathway. CircCAMSAP1 was up-regulated in HCC tissues, and circCAMSAP1 up-regulated GRAMD1A expression to promote HCC proliferation, migration and invasion through miR-1294. CircCAMSAP1 might be a potential prognosis and therapeutic target for HCC.
Collapse
Affiliation(s)
- Zongjiang Luo
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Libai Lu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Qianli Tang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China.,Clinic Medicine Research Center of Hepatobiliary Diseases, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Wang Wei
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Pengyu Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Yichen Chen
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jian Pu
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| | - Jianchu Wang
- Department of Hepatobiliary Surgery, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
| |
Collapse
|