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Hsu CY, Faisal A, Jumaa SS, Gilmanova NS, Ubaid M, Athab AH, Mirzaei R, Karampoor S. Exploring the impact of circRNAs on cancer glycolysis: Insights into tumor progression and therapeutic strategies. Noncoding RNA Res 2024; 9:970-994. [PMID: 38770106 PMCID: PMC11103225 DOI: 10.1016/j.ncrna.2024.05.001] [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: 02/19/2024] [Revised: 04/18/2024] [Accepted: 05/04/2024] [Indexed: 05/22/2024] Open
Abstract
Cancer cells exhibit altered metabolic pathways, prominently featuring enhanced glycolytic activity to sustain their rapid growth and proliferation. Dysregulation of glycolysis is a well-established hallmark of cancer and contributes to tumor progression and resistance to therapy. Increased glycolysis supplies the energy necessary for increased proliferation and creates an acidic milieu, which in turn encourages tumor cells' infiltration, metastasis, and chemoresistance. Circular RNAs (circRNAs) have emerged as pivotal players in diverse biological processes, including cancer development and metabolic reprogramming. The interplay between circRNAs and glycolysis is explored, illuminating how circRNAs regulate key glycolysis-associated genes and enzymes, thereby influencing tumor metabolic profiles. In this overview, we highlight the mechanisms by which circRNAs regulate glycolytic enzymes and modulate glycolysis. In addition, we discuss the clinical implications of dysregulated circRNAs in cancer glycolysis, including their potential use as diagnostic and prognostic biomarkers. All in all, in this overview, we provide the most recent findings on how circRNAs operate at the molecular level to control glycolysis in various types of cancer, including hepatocellular carcinoma (HCC), prostate cancer (PCa), colorectal cancer (CRC), cervical cancer (CC), glioma, non-small cell lung cancer (NSCLC), breast cancer, and gastric cancer (GC). In conclusion, this review provides a comprehensive overview of the significance of circRNAs in cancer glycolysis, shedding light on their intricate roles in tumor development and presenting innovative therapeutic avenues.
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Affiliation(s)
- Chou-Yi Hsu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan City, 71710, Taiwan
- Thunderbird School of Global Management, Arizona State University Tempe Campus, Phoenix, Arizona, 85004, USA
| | - Ahmed Faisal
- Department of Pharmacy, Al-Noor University College, Nineveh, Iraq
| | - Sally Salih Jumaa
- College of Pharmacy, National University of Science and Technology, Dhi Qar, Iraq
| | - Nataliya Sergeevna Gilmanova
- Department of Prosthetic Dentistry, I.M. Sechenov First Moscow State Medical University (Sechenov University), Russia, Moscow
| | - Mohammed Ubaid
- Medical Technical College, Al-Farahidi University, Baghdad, Iraq
| | - Aya H. Athab
- Department of Pharmacy, Al-Zahrawi University College, Karbala, Iraq
| | - Rasoul Mirzaei
- Venom & Biotherapeutics Molecules Lab, Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
| | - Sajad Karampoor
- Gastrointestinal & Liver Diseases Research Center, Iran University of Medical Sciences, Tehran, Iran
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2
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Liao M, Yao D, Wu L, Luo C, Wang Z, Zhang J, Liu B. Targeting the Warburg effect: A revisited perspective from molecular mechanisms to traditional and innovative therapeutic strategies in cancer. Acta Pharm Sin B 2024; 14:953-1008. [PMID: 38487001 PMCID: PMC10935242 DOI: 10.1016/j.apsb.2023.12.003] [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: 07/05/2023] [Revised: 11/09/2023] [Accepted: 11/14/2023] [Indexed: 03/17/2024] Open
Abstract
Cancer reprogramming is an important facilitator of cancer development and survival, with tumor cells exhibiting a preference for aerobic glycolysis beyond oxidative phosphorylation, even under sufficient oxygen supply condition. This metabolic alteration, known as the Warburg effect, serves as a significant indicator of malignant tumor transformation. The Warburg effect primarily impacts cancer occurrence by influencing the aerobic glycolysis pathway in cancer cells. Key enzymes involved in this process include glucose transporters (GLUTs), HKs, PFKs, LDHs, and PKM2. Moreover, the expression of transcriptional regulatory factors and proteins, such as FOXM1, p53, NF-κB, HIF1α, and c-Myc, can also influence cancer progression. Furthermore, lncRNAs, miRNAs, and circular RNAs play a vital role in directly regulating the Warburg effect. Additionally, gene mutations, tumor microenvironment remodeling, and immune system interactions are closely associated with the Warburg effect. Notably, the development of drugs targeting the Warburg effect has exhibited promising potential in tumor treatment. This comprehensive review presents novel directions and approaches for the early diagnosis and treatment of cancer patients by conducting in-depth research and summarizing the bright prospects of targeting the Warburg effect in cancer.
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Affiliation(s)
- Minru Liao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Dahong Yao
- School of Pharmaceutical Sciences, Shenzhen Technology University, Shenzhen 518118, China
| | - Lifeng Wu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chaodan Luo
- Department of Psychology, University of Southern California, Los Angeles, CA 90089, USA
| | - Zhiwen Wang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
- School of Pharmaceutical Sciences, Shenzhen Technology University, Shenzhen 518118, China
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Jin Zhang
- School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518055, China
| | - Bo Liu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
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3
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Tavares I, Morais M, Dias F, Medeiros R, Teixeira AL. Deregulated miRNAs in enzalutamide resistant prostate cancer: A comprehensive review of key molecular alterations and clinical outcomes. Biochim Biophys Acta Rev Cancer 2024; 1879:189067. [PMID: 38160898 DOI: 10.1016/j.bbcan.2023.189067] [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: 06/02/2023] [Revised: 12/21/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Prostate cancer (PC) is the second most frequently diagnosed cancer and the fifth leading cause of cancer-related deaths in male population worldwide. Since the growth and progression of PC highly depend on the androgen pathway, androgen deprivation therapy (ADT) is the mainstay of systemic treatment. Enzalutamide is a second-generation antiandrogen, which is widely used for the treatment of advanced and metastatic PC. However, treatment failure and disease progression, caused by the emergence of enzalutamide resistant phenotypes, remains an important clinical challenge. MicroRNAs (miRNAs) are key regulators of gene expression and have recently emerged as potential biomarkers for being stable and easily analysed in several biological fluids. Several miRNAs that exhibit dysregulated expression patterns in enzalutamide-resistant PC have recently been identified, including miRNAs that modulate critical signalling pathways and genes involved in PC growth, survival and in the acquisition of enzalutamide phenotype. The understanding of molecular mechanisms by which miRNAs promote the development of enzalutamide resistance can provide valuable insights into the complex interplay between miRNAs, gene regulation, and treatment response in PC. Moreover, these miRNAs could serve as valuable tools for monitoring treatment response and disease progression during enzalutamide administration. This review summarises the miRNAs associated with enzalutamide resistance in PC already described in the literature, focusing on their biological roles and on their potential as biomarkers.
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Affiliation(s)
- Inês Tavares
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC) Raquel Seruca, Porto, Portugal; ICBAS School of Medicine and Biomedical Sciences, University of Porto (UP), Porto, Portugal
| | - Mariana Morais
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC) Raquel Seruca, Porto, Portugal; ICBAS School of Medicine and Biomedical Sciences, University of Porto (UP), Porto, Portugal
| | - Francisca Dias
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC) Raquel Seruca, Porto, Portugal
| | - Rui Medeiros
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC) Raquel Seruca, Porto, Portugal; ICBAS School of Medicine and Biomedical Sciences, University of Porto (UP), Porto, Portugal; Faculty of Medicine, University of Porto (FMUP), Porto, Portugal; Biomedical Reasearch Center, Faculty of Health Sciences, Fernando Pessoa University (UFP), Porto, Portugal; Research Department, LPCC- Portuguese League Against Cancer (NRNorte), Porto, Portugal
| | - Ana Luísa Teixeira
- Molecular Oncology and Viral Pathology Group, Research Center of IPO Porto (CI-IPOP)/RISE@CI-IPOP (Health Research Network), Portuguese Oncology Institute of Porto (IPO Porto)/Porto Comprehensive Cancer Center (Porto.CCC) Raquel Seruca, Porto, Portugal.
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4
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Shen M, Zhang Q, Pan W, Wang B. CircUCK2 promotes hepatocellular carcinoma development by upregulating UCK2 in a mir-149-5p-dependent manner. Discov Oncol 2024; 15:14. [PMID: 38245591 PMCID: PMC10799813 DOI: 10.1007/s12672-024-00863-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Circular RNAs (circRNAs) participate in the regulation of Hepatocellular Carcinoma (HCC) progression. The objective of this study was to explore the function and mechanism of circUCK2 in HCC development. METHODS The RNA levels of circUCK2, miR-149-5p and uridine-cytidine kinase 2 (UCK2) were examined by quantitative real-time polymerase chain reaction (qRT-PCR). EdU incorporation assay and colony formation assay were respectively performed to analyze cell proliferation and colony formation. Wound healing assay and transwell assay were conducted for cell migration and invasion. Flow cytometry was used for cell apoptosis analysis. Western blot assay was conducted to determine the protein levels of E-cadherin, N-cadherin, matrix metallopeptidase 9 (MMP-9) and UCK2. Dual-luciferase reporter assay, RNA immunoprecipitation (RIP) assay and RNA pull-down assay were conducted to confirm the interaction between miR-149-5p and circUCK2 or UCK2. The xenograft model was established to explore the role of circUCK2 in tumor growth in vivo. RESULTS CircUCK2 level was elevated in HCC, and circUCK2 depletion suppressed HCC cell proliferation, colony formation, migration and invasion and accelerated cell apoptosis. Mechanistically, circUCK2 could positively modulate UCK2 expression by interacting with miR-149-5p. Furthermore, the repressive effects of circUCK2 knockdown on the malignant behaviors of HCC cells were alleviated by UCK2 overexpression or miR-149-5p inhibition. The promoting effects of circUCK2 overexpression on HCC cell malignancy were alleviated by UCK2 silencing or miR-149-5p introduction. Additionally, circUCK2 knockdown hampered tumor growth in vivo. CONCLUSION CircUCK2 contributed to HCC malignant progression in vitro and in vivo via targeting miR-149-5p/UCK2 axis, demonstrating that circUCK2 might be a novel therapeutic target for HCC.
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Affiliation(s)
- Minghai Shen
- Department of General Surgury, Xixi Hospital of Hangzhou, Hangzhou, 310023, China
| | - Qinghua Zhang
- Department of General Surgury, Xixi Hospital of Hangzhou, Hangzhou, 310023, China
| | - Wanneng Pan
- Department of General Surgury, Xixi Hospital of Hangzhou, Hangzhou, 310023, China
| | - Bei Wang
- Department of Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, No. 79, Qingchun Road, Shangcheng District, Hangzhou, 310023, China.
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Zepeda-Enríquez P, Silva-Cázares MB, López-Camarillo C. Novel Insights into Circular RNAs in Metastasis in Breast Cancer: An Update. Noncoding RNA 2023; 9:55. [PMID: 37736901 PMCID: PMC10514845 DOI: 10.3390/ncrna9050055] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023] Open
Abstract
Circular RNAs (circRNAs) are single-stranded closed non-coding RNA molecules that are aberrantly expressed and produce tumor-specific gene signatures in human cancers. They exert biological functions by acting as transcriptional regulators, microRNA sponges, and protein scaffolds, regulating the formation of protein-RNA complexes and, ultimately, regulating gene expression. Triple-negative breast cancer (TNBC) is one of the most aggressive cancers of the mammary gland and has a poor prognosis. Studies of circRNAs in TNBC are limited but have demonstrated these molecules' pivotal roles in cell proliferation, invasion, metastasis, and resistance to chemo/radiotherapy, suggesting that they could be potential prognostic biomarkers and novel therapeutic targets. Here, we reviewed the status of actual knowledge about circRNA biogenesis and functions and summarized novel findings regarding their roles in TNBC development and progression. In addition, we discussed recent data about the importance of exosomes in the transport and export of circRNAs in TNBC. Deep knowledge of circRNA functions in metastasis and therapy responses could be an invaluable guide in the identification of novel therapeutic targets for advancing the treatment of TNBC.
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Affiliation(s)
- Paola Zepeda-Enríquez
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, CDMX 03100, Mexico;
| | - Macrina B. Silva-Cázares
- Coordinación Academica Región Altiplano, Universidad Autónoma de San Luis Potosí, Matehuala 78700, Mexico;
| | - César López-Camarillo
- Posgrado en Ciencias Genómicas, Universidad Autónoma de la Ciudad de México, CDMX 03100, Mexico;
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6
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Gao K, Li X, Ni J, Wu B, Guo J, Zhang R, Wu G. Non-coding RNAs in enzalutamide resistance of castration-resistant prostate cancer. Cancer Lett 2023; 566:216247. [PMID: 37263338 DOI: 10.1016/j.canlet.2023.216247] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Revised: 05/23/2023] [Accepted: 05/24/2023] [Indexed: 06/03/2023]
Abstract
Enzalutamide (Enz) is a next-generation androgen receptor (AR) antagonist used to treat castration-resistant prostate cancer (CRPC). Unfortunately, the relapsing nature of CRPC results in the development of Enz resistance in many patients. Non-coding RNAs (ncRNAs) are RNA molecules that do not encode proteins, which include microRNAs (miRNA), long ncRNAs (lncRNAs), circular RNAs (circRNAs), and other ncRNAs with known and unknown functions. Recently, dysregulation of ncRNAs in CRPC, particularly their regulatory function in drug resistance, has attracted more and more attention. Herein, we introduce the roles of dysregulation of different ncRNAs subclasses in the development of CRPC progression and Enz resistance. Recently determined mechanisms of Enz resistance are discussed, focusing mainly on the role of AR-splice variant-7 (AR-V7), mutations, circRNAs and lncRNAs that act as miRNA sponges. Also, the contributions of epithelial-mesenchymal transition and glucose metabolism to Enz resistance are discussed. We summarize the different mechanisms of miRNAs, lncRNAs, and circRNAs in the progression of CRPC and Enz resistance, and highlight the prospect of future therapeutic strategies against Enz resistance.
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MESH Headings
- Male
- Humans
- Prostatic Neoplasms, Castration-Resistant/drug therapy
- Prostatic Neoplasms, Castration-Resistant/genetics
- Prostatic Neoplasms, Castration-Resistant/metabolism
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- RNA, Long Noncoding/genetics
- RNA, Long Noncoding/therapeutic use
- RNA, Circular/genetics
- Drug Resistance, Neoplasm/genetics
- Neoplasm Recurrence, Local
- Nitriles
- Androgen Receptor Antagonists/therapeutic use
- MicroRNAs/genetics
- MicroRNAs/therapeutic use
- Cell Line, Tumor
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Affiliation(s)
- Ke Gao
- Department of Urology, Xi'an People's Hospital(Xi'an Fourth Hospital), School of Life Sciences and Medicine, Northwest University, Xi'an, 710199, China; The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, 710032, China.
| | - Xiaoshun Li
- Department of Urology, Xi'an People's Hospital(Xi'an Fourth Hospital), School of Life Sciences and Medicine, Northwest University, Xi'an, 710199, China.
| | - Jianxin Ni
- Department of Urology, Xi'an People's Hospital(Xi'an Fourth Hospital), School of Life Sciences and Medicine, Northwest University, Xi'an, 710199, China.
| | - Bin Wu
- Department of Urology, Xi'an People's Hospital(Xi'an Fourth Hospital), School of Life Sciences and Medicine, Northwest University, Xi'an, 710199, China.
| | - Jiaheng Guo
- Department of Urology, Xi'an People's Hospital(Xi'an Fourth Hospital), School of Life Sciences and Medicine, Northwest University, Xi'an, 710199, China; The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, 710032, China.
| | - Rui Zhang
- The State Key Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, The Fourth Military Medical University, Xi'an, 710032, China; The State Key Laboratory of Cancer Biology, Department of Immunology, The Fourth Military Medical University, Xi'an, 710032, China.
| | - Guojun Wu
- Department of Urology, Xi'an People's Hospital(Xi'an Fourth Hospital), School of Life Sciences and Medicine, Northwest University, Xi'an, 710199, China.
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7
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Zhu W, Zhao R, Guan X, Wang X. The emerging roles and mechanism of N6-methyladenosine (m 6A) modifications in urologic tumours progression. Front Pharmacol 2023; 14:1192495. [PMID: 37284313 PMCID: PMC10239868 DOI: 10.3389/fphar.2023.1192495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/09/2023] [Indexed: 06/08/2023] Open
Abstract
Prostate cancer (PCa), bladder cancer (BC), and renal cell cancer (RCC) are the most common urologic tumours in males. N6-methyladenosine (m6A), adenosine N6 methylation, is the most prevalent RNA modification in mammals. Increasing evidence suggests that m6A plays a crucial role in cancer development. In this review, we comprehensively analyzed the influence of m6A methylation on Prostate cancer, bladder cancer, and renal cell cancer and the relationship between the expression of relevant regulatory factors and their development and occurrence, which provides new insights and approaches for the early clinical diagnosis and targeted therapy of urologic malignancies.
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8
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Ghamlouche F, Yehya A, Zeid Y, Fakhereddine H, Fawaz J, Liu YN, Al-Sayegh M, Abou-Kheir W. MicroRNAs as clinical tools for diagnosis, prognosis, and therapy in prostate cancer. Transl Oncol 2023; 28:101613. [PMID: 36608541 PMCID: PMC9827391 DOI: 10.1016/j.tranon.2022.101613] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 12/05/2022] [Accepted: 12/24/2022] [Indexed: 01/06/2023] Open
Abstract
Prostate cancer (PCa) is one of the most commonly diagnosed cancers among men worldwide. Despite the presence of accumulated clinical strategies for PCa management, limited prognostic/sensitive biomarkers are available to follow up on disease occurrence and progression. MicroRNAs (miRNAs) are small non-coding RNAs that control gene expression through post-transcriptional regulation of their complementary target messenger RNA (mRNA). MiRNAs modulate fundamental biological processes and play crucial roles in the pathology of various diseases, including PCa. Multiple evidence proved an aberrant miRNA expression profile in PCa, which is actively involved in the carcinogenic process. The robust and pleiotropic impact of miRNAs on PCa suggests them as potential candidates to help more understand the molecular landscape of the disease, which is likely to provide tools for early diagnosis and prognosis as well as additional therapeutic strategies to manage prostate tumors. Here, we emphasize the most consistently reported dysregulated miRNAs and highlight the contribution of their altered downstream targets with PCa hallmarks. Also, we report the potential effectiveness of using miRNAs as diagnostic/prognostic biomarkers in PCa and the high-throughput profiling technologies that are being used in their detection. Another key aspect to be discussed in this review is the promising implication of miRNAs molecules as therapeutic tools and targets for fighting PCa.
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Affiliation(s)
- Fatima Ghamlouche
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Amani Yehya
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Yousef Zeid
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Hiam Fakhereddine
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Jhonny Fawaz
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon
| | - Yen-Nien Liu
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
| | - Mohamed Al-Sayegh
- Biology Division, New York University Abu Dhabi, Abu Dhabi 2460, United Arab Emirates.
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon.
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Chen H, Fan X, Zhang W, Ye Y, Cai Z, Zhang K, Zhang K, Fu Z, Chen D, Guo R. Deciphering the CircRNA-Regulated Response of Western Honey Bee ( Apis mellifera) Workers to Microsporidian Invasion. BIOLOGY 2022; 11:biology11091285. [PMID: 36138764 PMCID: PMC9495892 DOI: 10.3390/biology11091285] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 08/21/2022] [Accepted: 08/25/2022] [Indexed: 05/13/2023]
Abstract
Vairimorpha ceranae is a widespread fungal parasite of adult honey bees that leads to a serious disease called nosemosis. Circular RNAs (circRNAs) are newly discovered non-coding RNAs (ncRNAs) that regulate biological processes such as immune defense and development. Here, 8199 and 8711 circRNAs were predicted from the midguts of Apis mellifera ligustica workers at 7 d (Am7T) and 10 d (Am10T) after inoculation (dpi) with V. ceranae spores. In combination with transcriptome data from corresponding uninoculated midguts (Am7CK and Am10CK), 4464 circRNAs were found to be shared by these four groups. Additionally, 16 circRNAs were highly conserved among A. m. ligustica, Apis cerana cerana, and Homo sapiens. In the Am7CK vs. Am7T (Am10CK vs. Am10T) comparison group, 168 (306) differentially expressed circRNAs (DEcircRNAs) were identified. RT-qPCR results showed that the expression trend of eight DEcircRNAs was consistent with that in the transcriptome datasets. The source genes of DEcircRNAs in Am7CK vs. Am7T (Am10CK vs. Am10T) were engaged in 27 (35) GO functional terms, including 1 (1) immunity-associated terms. Moreover, the aforementioned source genes were involved in three cellular immune-related pathways. Moreover, 86 (178) DEcircRNAs in workers' midguts at 7 (10) dpi could interact with 75 (103) miRNAs, further targeting 215 (305) mRNAs. These targets were associated with cellular renewal, cellular structure, carbohydrate and energy metabolism, and cellular and humoral immunity. Findings in the present study unraveled the mechanism underlying circRNA-mediated immune responses of western honey bee workers to V. ceranae invasion, but also provided new insights into host-microsporidian interaction during nosemosis.
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Affiliation(s)
- Huazhi Chen
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Xiaoxue Fan
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Wende Zhang
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Yaping Ye
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Zongbing Cai
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Kaiyao Zhang
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Kuihao Zhang
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Zhongmin Fu
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
- Apitherapy Research Institute, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Dafu Chen
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
- Apitherapy Research Institute, Fujian Agriculture and Forestry University, Fuzhou 35002, China
| | - Rui Guo
- College of Bee Science, Fujian Agriculture and Forestry University, Fuzhou 35002, China
- Apitherapy Research Institute, Fujian Agriculture and Forestry University, Fuzhou 35002, China
- Correspondence: ; Tel./Fax: +86-0591-8764-0197
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10
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Targeted microRNA Profiling in Gastric Cancer with Clinical Assessement. Balkan J Med Genet 2022; 24:55-64. [PMID: 36249523 PMCID: PMC9524170 DOI: 10.2478/bjmg-2021-0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Although several microRNAs (miRNAs) have been associated with gastric cancer there is still the need for identification of stable and validated biomarkers. The purpose of this study was to determine the alterations of a specific set of miRNA levels in gastric adenocarcinoma tissues to identify and validate gastric cancer-specific miRNAs using paired normal and tumor samples in an independent patient cohort. Gastric adenocarcinoma and normal stomach tissue samples of 20 patients who underwent surgery for gastric cancer were studied. The miRNA expression profiling was performed for eight miRNAs in a total of 40 tissue samples using quantitative reverse transcription polymerase chain reaction (RT-qPCR). Six out of these eight miRNAs, namely, miR-375-3p, hsamiR-129-5p, miR-196a-5p, miR-376c-3p, miR-34c-5p and miR-767-5p, were significantly underexpressed in malignant tissues of our cohort. Furthermore, the expression of miR-662 although not significantly different between normal and tumor tissues, was inversely associated with age (r = −0.440, p = 0.049). The levels of miR-129-3p and miR34c-5p were correlated with an increase in the number of metastatic lymph nodes (r = 0.470, p = 0.036; r = 0.510, p = 0.020), while and miR-376c-3p levels were negatively associated with smoking (p = 0.043). In addition, we found that the variability of miRNA expression in cancerous tissues was lower than that in normal tissues. Alterations in miRNA expression in gastric adenocarcinoma tissues in comparison to healthy tissues of each individual serves for identification of consistent biomarkers that can be used for development of diagnostic tools for gastric cancer.
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11
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Li N, Wu J, Hu B, Lu H, Gao J, Zhu L, Zheng D. Upregulation of hsa_circ_0000977 participates in esophageal squamous cancer progression by sponging miR-874-3p. J Clin Lab Anal 2022; 36:e24458. [PMID: 35476874 PMCID: PMC9169171 DOI: 10.1002/jcla.24458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 03/25/2022] [Accepted: 03/28/2022] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is one of the most common clinical malignancies of the digestive system, characterized by high mortality but not evident early symptoms. Molecular markers for diagnostic and outcome prediction are urgently needed. Circular RNAs might play essential roles in the progression of ESCC. METHODS Hsa_circ_0000977 was identified using circRNA microarrays and qRT-PCR. The diagnostic value of hsa_circ_0000977 was calculated. We also examined in vitro cell functions in ECA109 and TE12 ESCC cells to determine the effect of hsa_circ_0000977. A dual-luciferase reporter vector validated the binding of hsa_circ_0000977 to miR-874-3p. RESULTS The top 10 significantly upregulated circRNAs from microarray assays were hsa_circ_0000977, hsa_circ_0006220, hsa_circ_0043278, hsa_circ_0000691, hsa_circ_0000288, hsa_circ_0000367, hsa_circ_0021647, hsa_circ_0006440, hsa_circRNA_405571 and hsa_circRNA_100790, while the top 10 significantly downregulated circRNAs were hsa_circ_0008389, hsa_circ_0089763, hsa_circ_0089762, hsa_circ_0000102, hsa_circ_0001714, hsa_circ_0089761, hsa_circ_0007326, hsa_circ_0001549, hsa_circ_0005133 and hsa_circRNA_405965. Hsa_circ_0000977 was significantly upregulated in ESCC (p < 0.01) and had diagnostic value in ESCC. The hsa_circ_0000977 expression level was related to the pT stage and numbers of lymph nodes in ESCC patients. Elevated hsa_circ_0000977 promoted cell proliferation, migration and inhibited apoptosis in ESCC cells. Hsa_circ_0000977 might function as a micro-RNA sponge to competitively bind miR-874-3p. CONCLUSION Disordered hsa_circ_0000977 expression can promote carcinogenesis in ESCC and might serve as a diagnostic biomarker to evaluate the occurrence and development of esophageal cancer.
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Affiliation(s)
- Ni Li
- Department of Cardiothoracic SurgeryLihuili Hospital Affiliated to Ningbo UniversityNingboChina
- Institute of PharmaceuticsCollege of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
| | - Jiacheng Wu
- College of Medical ScienceNingbo UniversityNingboChina
| | - Bingchuan Hu
- Department of Cardiothoracic SurgeryLihuili Hospital Affiliated to Ningbo UniversityNingboChina
| | - Hongna Lu
- Department of Cardiothoracic SurgeryLihuili Hospital Affiliated to Ningbo UniversityNingboChina
| | - Jianqing Gao
- Institute of PharmaceuticsCollege of Pharmaceutical SciencesZhejiang UniversityHangzhouChina
| | - Linwen Zhu
- Department of Cardiothoracic SurgeryLihuili Hospital Affiliated to Ningbo UniversityNingboChina
| | - Dawei Zheng
- Department of Cardiothoracic SurgeryLihuili Hospital Affiliated to Ningbo UniversityNingboChina
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12
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Fang Y, Yin J, Shen Y, Wang H, Tang H, Chen X. CircCDR1 sponges miR-1290 to regulate cell proliferation, migration, invasion, and apoptosis in esophageal squamous cell cancer. Cell Cycle 2022; 21:1316-1334. [PMID: 35289243 PMCID: PMC9132397 DOI: 10.1080/15384101.2022.2050645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Since circCDR1 was abnormally expressed in esophageal squamous cell cancer (ESCC), the current study explored whether circCDR1 affected ESCC. Detailedly, circCDR1 expression in ESCC and linear isoform and stability of circCDR1 were detected by RT-qPCR. The location of circCDR1 was detected by fluorescence in situ hybridization (FISH). After transfection, the cell biological functions were detected by wound-healing, CCK-8, colony formation, and flow cytometry assays. The target of circCDR1 was predicted by bioinformatics, FISH, RNA pull-down, and dual-luciferase reporter assays. The correlation between circCDR1 and miR-1290 was analyzed by Pearson's correlation analysis. A subcutaneous-xenotransplant tumor model in BALB/c nude mice was established and the levels of circCDR1, miR-1290, and apoptosis/metastasis/proliferation-related factors in the cancer cells and tissues were detected by immunohistochemical analysis, western blot, or RT-qPCR. As a result, circCDR1 was low-expressed in ESCC tissues and cells, while miR-1290 was high-expressed. CircCDR1 was regulated and was negatively correlated with miR-1290. CircCDR1, located in cytoplasm, inhibited the viability, proliferation, migration, and invasion of the cancer cells and the expressions of Bcl-2, N-cadherin, and Vimentin, but enhanced cell apoptosis and the expressions of C caspase-3, Bax, E-cadherin, IGFBP4, LHX6 and NFIX. In vivo, circCDR1 promoted xenotransplanted tumor weight and volume, and the expressions of C caspase-3 and Bax yet suppressed the levels of Bcl-2, miR-1290, and Ki-67 in tumor tissues. The effects of circCDR1 on both cancer cells and tissues were opposite to and reversed by miR-1290 mimic. Collectively, circCDR1 sponged miR-1290 to regulate the progression of ESCC both in vitro and in vivo.
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Affiliation(s)
- Yong Fang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jun Yin
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yaxing Shen
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hao Wang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Han Tang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaosang Chen
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
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13
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Fu Y, Wei XD, Guo L, Wu K, Le J, Ma Y, Kong X, Tong Y, Wu H. The Metabolic and Non-Metabolic Roles of UCK2 in Tumor Progression. Front Oncol 2022; 12:904887. [PMID: 35669416 PMCID: PMC9163393 DOI: 10.3389/fonc.2022.904887] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Accepted: 04/19/2022] [Indexed: 12/04/2022] Open
Abstract
Enhanced nucleoside metabolism is one of the hallmarks of cancer. Uridine-cytidine kinase 2 (UCK2) is a rate-limiting enzyme of the pyrimidine salvage synthesis pathway to phosphorylate uridine and cytidine to uridine monophosphate (UMP) and cytidine monophosphate (CMP), respectively. Recent studies have shown that UCK2 is overexpressed in many types of solid and hematopoietic cancers, closely associates with poor prognosis, and promotes cell proliferation and migration in lung cancer and HCCs. Although UCK2 is thought to catalyze sufficient nucleotide building blocks to support the rapid proliferation of tumor cells, we and other groups have recently demonstrated that UCK2 may play a tumor-promoting role in a catalytic independent manner by activating oncogenic signaling pathways, such as STAT3 and EGFR-AKT. By harnessing the catalytic activity of UCK2, several cytotoxic ribonucleoside analogs, such as TAS-106 and RX-3117, have been developed for UCK2-mediated cancer chemotherapy. Moreover, we have demonstrated that the concurrent targeting of the catalytic dependent and independent features of UCK2 could synergistically inhibit tumor growth. These findings suggest that UCK2 may serve as a potential therapeutic target for cancer treatment. In this mini-review, we introduced the genomic localization and protein structure of UCK2, described the role of UCK2 in tumor development, discussed the application of UCK2 in anti-tumor treatment, and proposed concurrent targeting of the catalytic and non-catalytic roles of UCK2 as a potential therapeutic strategy for cancer treatment.
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Affiliation(s)
- Yi Fu
- Affiliated Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Innovation Center for Biomedicines, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xin-dong Wei
- Affiliated Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Central Laboratory, Department of Liver Diseases, Institute of Clinical Immunology, ShuGuang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Luoting Guo
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Innovation Center for Biomedicines, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Kai Wu
- School of Pharmacy, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Jiamei Le
- Affiliated Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Innovation Center for Biomedicines, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Yujie Ma
- Affiliated Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Innovation Center for Biomedicines, Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Xiaoni Kong
- Central Laboratory, Department of Liver Diseases, Institute of Clinical Immunology, ShuGuang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ying Tong
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, China
- *Correspondence: Hailong Wu, ; Ying Tong,
| | - Hailong Wu
- Affiliated Zhoupu Hospital, Shanghai University of Medicine and Health Sciences, Shanghai, China
- Shanghai Key Laboratory of Molecular Imaging, Collaborative Innovation Center for Biomedicines, Shanghai University of Medicine and Health Sciences, Shanghai, China
- *Correspondence: Hailong Wu, ; Ying Tong,
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14
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Ding Y, Wang M, Yang J. Circular RNA midline-1 (circMID1) promotes proliferation, migration, invasion and glycolysis in prostate cancer. Bioengineered 2022; 13:6293-6308. [PMID: 35212614 PMCID: PMC8973952 DOI: 10.1080/21655979.2022.2037367] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The key role of circular RNA (circRNA) in the malignant progression of cancers has been demonstrated. However, the role of circRNA midline-1 (circMID1) in prostate cancer (PCa) progression has not been clarified. Quantitative real-time PCR was used to measure relative expression. Function analysis was performed using EdU staining, colony formation assay, flow cytometry, wound healing assay, transwell assay and cell glycolysis detection. The protein levels were detected by Western blot analysis. RNA pull-down assay, dual-luciferase reporter assay and RIP assay were performed to verify RNA interaction. Animal experiments were utilized to explore the effects of circMID1 knockdown on PCa tumorigenesis in vivo. Our results showed that circMID1 was upregulated in PCa tissues and cells and its knockdown inhibited PCa cell proliferation, migration, invasion and glycolysis in vitro, as well as PCa tumorigenesis in vivo. IGF1R and YTHDC2 were highly expressed in PCa tissues and cells, and their expression was positively regulated by circMID1. IGF1R and YTHDC2 overexpression reversed the inhibitory effect of circMID1 silencing on PCa cell progression. In terms of mechanism, circMID1 could sponge miR-330-3p and miR-330-3p could target IGF1R and YTHDC2. Functional experiments showed that circMID1 sponged miR-330-3p to regulate PCa progression via the YTHDC2/IGF1R/AKT axis. In conclusion, our data confirmed that circMID1 might play a pro-cancer role in PCa, which promoted PCa progression through regulating the miR-330-3p/YTHDC2/IGF1R/AKT axis.
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Affiliation(s)
- Yafei Ding
- Department of Uropoiesis Surgical, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan Province, China
| | - Mi Wang
- Department of Anesthesiology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan Province, China
| | - Jinjian Yang
- Department of Uropoiesis Surgical, The First Affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan Province, China
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15
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Circular RNAs and Drug Resistance in Genitourinary Cancers: A Literature Review. Cancers (Basel) 2022; 14:cancers14040866. [PMID: 35205613 PMCID: PMC8869870 DOI: 10.3390/cancers14040866] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 01/25/2022] [Accepted: 01/27/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary Drug resistance to systematic treatment in genitourinary tumors severely aggravated the burden on patients and society. Multiple mechanisms were involved in drug resistance. As typical non-coding RNAs, circRNAs play a critical role in the onset and development of cancers and several studies implied their function in the regulation of drug resistance. Here, we reviewed the investigations of circRNAs’ behavior in drug resistance of genitourinary cancers and summarized the underlying mechanisms. This review emphasized the essential role of circRNAs in drug resistance development and also pointed out the potential topics that need further investigations in the future. Abstract In recent years, systematic treatment has made great progress in genitourinary tumors. However, some patients develop resistance to the treatments, resulting in an increase in mortality. Circular RNAs (circRNAs) form a class of non-coding RNAs with high stability and significant clinical relevance. Accumulating evidence indicates that circRNAs play a vital role in cancer development and tumor chemotherapy resistance. This review summarizes the molecular and cellular mechanisms of drug resistance mediated by circRNAs to common drugs used in the treatment of genitourinary tumors. Several circRNAs were identified to regulate the responsiveness to systemic treatments in genitourinary tumors, including chemotherapies such as cisplatin and targeted therapies such as enzalutamide. Canonically, cicrRNAs participate in the competing endogenous RNA (ceRNA) network, or in some cases directly interact with proteins, regulate downstream pathways, and even some circRNAs have the potential to produce proteins or polypeptides. Several cellular mechanisms were involved in circRNA-dependent drug resistance, including autophagy, cancer stem cells, epithelial-mesenchymal transition, and exosomes. The potential clinical prospect of circRNAs in regulating tumor drug resistance was also discussed.
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16
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MiR-145-5p Inhibits the Invasion of Prostate Cancer and Induces Apoptosis by Inhibiting WIP1. JOURNAL OF ONCOLOGY 2021; 2021:4412705. [PMID: 34899906 PMCID: PMC8660234 DOI: 10.1155/2021/4412705] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/21/2021] [Accepted: 10/25/2021] [Indexed: 11/26/2022]
Abstract
Prostate cancer (PCa) is a common malignant tumor of the male genitourinary system that seriously affects the quality of life of patients. Studying the pathogenesis and therapeutic targets of PCa is important. In this study, we investigated the role of miR-145-5p in PCa and its potential molecular mechanisms. The expression levels of miR-145-5p in PCa tissues and adjacent control tissues were detected by real-time quantitative polymerase chain reaction. The effects of miR-145-5p overexpression on PCa were studied using cell proliferation, migration, and invasion experiments. Furthermore, WIP1 was the target gene of miR-145-5p through the bioinformatics website and dual-luciferase reporter gene experiment. Further studies found that WIP1 downregulation could inhibit the proliferation, invasion, and cloning of PCa cells. Overexpression of WIP1 reversed the anticancer effects of miR-145. The anticancer effect of miR-145 was achieved by inhibiting the PI3K/AKT signaling pathway and upregulating ChK2 and p-p38MAPK. Taken together, these results confirmed that miR-145-5p inhibited the growth and metastasis of PCa cells by inhibiting the expression of proto-oncogene WIP1, thereby playing a role in tumor suppression in PCa and may become a potential therapeutic target for the treatment of PCa.
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17
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Liu X, Tong Y, Xia D, Peng E, Yang X, Liu H, Ye T, Wang X, He Y, Ye Z, Chen Z, Tang K. Circular RNAs in prostate cancer: Biogenesis,biological functions, and clinical significance. MOLECULAR THERAPY. NUCLEIC ACIDS 2021; 26:1130-1147. [PMID: 34820150 PMCID: PMC8585584 DOI: 10.1016/j.omtn.2021.10.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Circular RNAs (circRNAs) are covalently closed RNA molecules that play important regulatory roles in various tumors. Prostate cancer (PCa) is one of the most common malignant tumors in the world, with high morbidity and mortality. In recent years, more and more circRNAs have been found to be abnormally expressed and involved in the occurrence and development of PCa, including cell proliferation, apoptosis, invasion, migration, metastasis, chemotherapy resistance, and radiotherapy resistance. Most of the circRNAs regulate biological behaviors of cancer through a competitive endogenous RNA (ceRNA) regulatory mechanism, and some can exert their functions by binding to proteins. circRNAs are also associated with many clinicopathological features of PCa, including tumor grade, lymph node metastasis, and distant metastasis. In addition, circRNAs are potential diagnostic and prognostic biomarkers for PCa. Considering their critical regulatory roles in the progression of PCa, circRNAs would be the potential therapeutic targets. In this paper, the current research status of circRNAs in PCa is briefly reviewed.
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Affiliation(s)
- Xiao Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yonghua Tong
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ding Xia
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ejun Peng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaoqi Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hailang Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tao Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xinguang Wang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yu He
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhangqun Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhiqiang Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Kun Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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18
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Xing Z, Li S, Liu Z, Zhang C, Bai Z. CircSERPINA3 regulates SERPINA3-mediated apoptosis, autophagy and aerobic glycolysis of prostate cancer cells by competitively binding to MiR-653-5p and recruiting BUD13. J Transl Med 2021; 19:492. [PMID: 34861864 PMCID: PMC8642898 DOI: 10.1186/s12967-021-03063-2] [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: 04/06/2021] [Accepted: 09/01/2021] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Prostate cancer (PCa) belongs to an epithelial malignancy that occurs in the prostate gland and is the most common malignancy of the male genitourinary system. Referring to related literature, circSERPINA3 has been reported to be up-regulated in PCa. However, its biological function remains unclear. PURPOSE This study aimed to reveal the specific role and relevant molecular mechanism of circSERPINA3 in PCa. METHODS RT-qPCR was used to examine gene expression and functional analyses were conducted to verify the effect of circSERPINA3 on cell apoptosis, autophagy and aerobic glycolysis in PCa cells. Mechanism assays were applied to evaluate the relationship among circSERPINA3/miR-653-5p/SERPINA3/BUD13. RESULTS CircSERPINA3 was verified to be up-regulated in PCa cells and to inhibit cell apoptosis while promoting aerobic glycolysis and autophagy in PCa cells. CircSERPINA3 and SERPINA3 were also testified to bind to miR-653-5p through a line of mechanism experiments. Moreover, it was discovered that circSERPINA3 could stabilize SERPINA3 mRNA via recruiting BUD13. Additionally, SERPINA3 was verified to inhibit cell apoptosis, while promoting aerobic glycolysis and autophagy in PCa cells. CONCLUSIONS Our study suggested that circSERPINA3 regulated apoptosis, autophagy and aerobic glycolysis of PCa cells by competitively binding to miR-653-5p and recruiting BUD13.
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Affiliation(s)
- Zengshu Xing
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China.
| | - Sailian Li
- Department of Gastroenterology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No.43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
| | - Zhenxiang Liu
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
| | - Chong Zhang
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
| | - Zhiming Bai
- Department of Urology, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43 Renmin Road, Meilan District, Haikou, 570208, Hainan, China
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19
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Luo GC, Chen L, Fang J, Yan ZJ. Hsa_circ_0030586 promotes epithelial-mesenchymal transition in prostate cancer via PI3K-AKT signaling. Bioengineered 2021; 12:11089-11107. [PMID: 34852706 PMCID: PMC8810173 DOI: 10.1080/21655979.2021.2008217] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 11/10/2021] [Accepted: 11/12/2021] [Indexed: 01/22/2023] Open
Abstract
Circular RNAs (CircRNAs) gain importance as regulatory molecules in prostate cancer (PCa), but molecular mechanism of most circRNAs in pathogenesis of PCa remains to be studied. This study aimed to explore the role of hsa_circ_0030586 in PCa. Gene Expression Omnibus database (GSE77661) was used to screen out candidate circRNAs. Quantitative real-time PCR was used to verify the relative expressions of circRNAs, miRNAs, and genes in PCa cells. A CCK-8 assay was used to evaluate the cells' proliferation. Transwell and wound healing assay were used to determine the cells' migration and invasion. Western blotting and immunohistochemistry were used to detect the protein expression of PI3K/AKT signaling proteins and epithelial-mesenchymal transition (EMT) markers. Furthermore, a nude mice tumorigenesis experiment in vivo was conducted to determine the function of hsa_circ_0030586 on PCa. Our results showed that hsa_circ_0030586 is significantly upregulated in PCa cells (p < 0.05). Its circular structure was confirmed via agarose gel electrophoresis and Sanger sequencing. Interfering with hsa_circ_0030586 in PC3 cells inhibited cell proliferation, migration, and invasion and led to the significant upregulation of E-cadherin and the significant downregulation of p-AKT/AKT, IKKα, PIK3CB, and Twist (all p < 0.05). Conversely, the hsa_circ_003058 interference fragment combined with the transfection of a miR-145-3p inhibitor could reverse the above effects. In vivo tumorigenesis of the xenograft model confirmed that interfering with hsa_circ_0030586 suppressed tumor cell proliferation and inhibited PI3K-AKT signaling and EMT in PC3 cells. Hsa_circ_0030586 is significantly upregulated in PCa cells and may promote EMT via PI3K-AKT signaling.
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Affiliation(s)
- Guang-Cheng Luo
- Department of Urology, Zhongshan Hospital Xiamen University, Xiamen, Fujian, China
- The Third Clinical Medical College, Fujian Medical University, Xiamen, Fujian, China
| | - Lin Chen
- The Third Clinical Medical College, Fujian Medical University, Xiamen, Fujian, China
| | - Jiang Fang
- Department of Urology, Zhongshan Hospital Xiamen University, Xiamen, Fujian, China
| | - Zhi-Jian Yan
- Department of Urology, Zhongshan Hospital Xiamen University, Xiamen, Fujian, China
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Taheri M, Najafi S, Basiri A, Hussen BM, Baniahmad A, Jamali E, Ghafouri-Fard S. The Role and Clinical Potentials of Circular RNAs in Prostate Cancer. Front Oncol 2021; 11:781414. [PMID: 34804984 PMCID: PMC8604184 DOI: 10.3389/fonc.2021.781414] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 10/20/2021] [Indexed: 12/15/2022] Open
Abstract
Globally, prostate cancer (PCa) is the second most commonly diagnosed cancer in men globally. Early diagnosis may help in promoting survival in the affected patients. Circular RNAs (circRNAs) are a novel class of non-coding RNAs (ncRNAs) which have been found to show extensive dysregulation in a handful of human diseases including cancers. Progressions in RNA identification techniques have provided a vast number of circRNAs exhibiting either up-regulation or down-regulation in PCa tissues compared to normal adjacent tissues. The mechanism of action is not clear for most of dysregulated circRNAs. Among them, function of a number of newly identified dysregulated circRNAs have been assessed in PCa cells. Increase in cell proliferation, migration, invasion, and metastasis have been reported for up-regulated circRNAs which suggest their role as oncogenes. On the other hand, down-regulated circRNAs have shown tumor suppressing actions in experimental studies. Furthermore, in a majority of studies, circRNAs have been found to sponge microRNAs (miRNAs), negatively regulating expression or activity of the downstream miRNAs. Additionally, they have been identified in interaction with regulatory proteins. This axis consequently regulates a signaling pathway, a tumor suppressor, or an oncogene. Easy, quick, and reliable detection of circRNAs in human body fluids also suggests their potentials as biomarker candidates for diagnosis and prediction of prognosis in PCa patients. In this review, we have discussed the role and potentials of a number of dysregulated circRNAs in PCa.
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Affiliation(s)
- Mohammad Taheri
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sajad Najafi
- Student Research Committee, Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abbas Basiri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Aria Baniahmad
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
| | - Elena Jamali
- Department of Pathology, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Jiao H, Zhao Y, Zhou Z, Li W, Li B, Gu G, Luo Y, Shuai X, Fan C, Wu L, Chen J, Huang Q, Wang F, Liu J. Identifying Circular RNAs in HepG2 Expressing Genotype IV Swine Hepatitis E Virus ORF3 Via Whole Genome Sequencing. Cell Transplant 2021; 30:9636897211055042. [PMID: 34699255 PMCID: PMC8552397 DOI: 10.1177/09636897211055042] [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] [Indexed: 11/16/2022] Open
Abstract
Swine hepatitis E (SHE) is a new type of zoonotic infectious disease caused by swine hepatitis E virus (SHEV). Open reading frame 3 (ORF3) is a key regulatory and virulent protein of SHEV. Circular RNAs (circRNAs) are a special kind of non-coding RNA molecule, which has a closed ring structure. In this study, to identify the circRNA profile in host cells affected by SHEV ORF3, adenovirus ADV4-ORF3 mediated the overexpression of ORF3 in HepG2 cells, whole genome sequencing was used to investigate the differentially expressed circRNAs, GO and KEGG were performed to enrichment analyze of differentially expressed circRNA-hosting gene, and Targetscan and miRanda softwares were used to analyze the interaction between circRNA and miRNA. The results showed adenovirus successfully mediated the overexpression of ORF3 in HepG2 cells, 1,105 up-regulation circRNAs and 1,556 down-regulation circRNAs were identified in ADV4-ORF3 infection group compared with the control. GO function enrichment analysis of differentially expressed circRNAs-hosting genes classified three main categories (cellular component, biological process and molecular function). KEGG pathway enrichment analysis scatter plot showed the pathway term of top20. The circRNAs with top10 number of BS sites for qRT-PCR validation were selected to confirmed, the results indicated that the up-regulated hsa_circ_0001423 and hsa_circ_0006404, and down-regulated of hsa_circ_0004833 and hsa_circ_0007444 were consistent with the sequencing data. Our findings first preliminarily found that ORF3 protein may affect triglyceride activation (GO:0006642) and riboflavin metabolism (ko00740) in HepG2 cells, which provides a scientific basis for further elucidating the effect of ORF3 on host lipid metabolism and the mechanism of SHEV infection.
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Affiliation(s)
- Hanwei Jiao
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
| | - Yu Zhao
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Institute of Animal Husbandry and Veterinary Medicine of Guizhou Academy of Agricultural Science, Guiyang, China
| | - Zhixiong Zhou
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Wenjie Li
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Bowen Li
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Guojing Gu
- College of Veterinary Medicine, Southwest University, Chongqing, China
| | - Yichen Luo
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
| | - Xuehong Shuai
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
| | - Cailiang Fan
- Rongchang Animal Epidemic Prevention and Control Center, Chongqing, Rongchang, China
| | - Li Wu
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
| | - Jixuan Chen
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
| | - Qingzhou Huang
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
| | - Fengyang Wang
- Hainan Key Lab of Tropical Animal Reproduction and Breeding and Epidemic Disease Research, College of Animal Science and Technology, Hainan University, Haikou, China
| | - Juan Liu
- College of Veterinary Medicine, Southwest University, Chongqing, China.,Immunology Research Center, Medical Research Institute, Southwest University, Chongqing, China.,Chongqing Veterinary Scientific Engineering Research Center, Southwest University, Chongqing, China
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22
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Wu H, Xu H, Jia D, Li T, Xia L. METTL3-induced UCK2 m 6A hypermethylation promotes melanoma cancer cell metastasis via the WNT/β-catenin pathway. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:1155. [PMID: 34430596 PMCID: PMC8350655 DOI: 10.21037/atm-21-2906] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/13/2021] [Indexed: 01/12/2023]
Abstract
Background Melanoma is a highly aggressive, malignant skin tumor with a statistically high mortality rate. N6-methyladenosine (m6A) modification is involved in a variety of biological processes, including tumorigenesis. m6A modifications regulate the fate and functions of RNA, such as mRNA stability, nuclear processing, transport, localization, translation, primary microRNA (miRNA) processing, and RNA-protein interactions. Several members (including METTL3, METTL14, FTO, ALKBH5, and YTHDF2) are actively involved in a variety of human cancers. However, the basic mechanism of the involvement of uridine cytidine kinase 2 (UCK2) in melanoma metastasis has not been studied. UCK2 is upregulated in a variety of malignancies. However, the complex molecular mechanisms and therapeutic effects of UCK2 in melanoma remain unclear. Methods The expression of UCK2 was evaluated by qRT-PCR. The effects of UCK2 on the biological characteristics of PC cells were investigated on the basis of loss-of-function analyses. Immunoprecipitation-qPCR (MeRIP-qPCR) was performed to identify the m6A targeted effect of UCK2 in melanoma cancer. Results Based on the bioinformatics analysis in this study, up-regulation of UCK2 could be essential in melanoma cancer, and associated with poor survival. Furthermore, the m6A modification regulated by METTL3 led to UCK2 increased messenger RNA (mRNA) stability in melanoma cancer. Functional and mechanistic experiments indicated that UCK2 enhanced the metastasis of melanoma cancer cells through the WNT/β-catenin pathway. Conclusion In this study, we found that m6A-METTL3 axis induced abnormal UCK2 expression plays a role in melanoma metastasis by enhancing the Wnt/β-catenin pathway, which may provide new clues for melanoma metastasis. It also provides a potential target for the prevention and treatment of melanoma.
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Affiliation(s)
- Hao Wu
- Department of Bone and Soft-Tissue Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Haochao Xu
- Department of Bone and Soft-Tissue Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Dongdong Jia
- Department of Bone and Soft-Tissue Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Tao Li
- Department of Bone and Soft-Tissue Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
| | - Liming Xia
- Department of Bone and Soft-Tissue Surgery, Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou, China.,Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Hangzhou, China
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23
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Chao F, Wang S, Zhang C, Han D, Xu G, Chen G. The Emerging Role of Circular RNAs in Prostate Cancer: A Systematic Review. Front Cell Dev Biol 2021; 9:681163. [PMID: 34386491 PMCID: PMC8353182 DOI: 10.3389/fcell.2021.681163] [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: 03/16/2021] [Accepted: 07/06/2021] [Indexed: 11/13/2022] Open
Abstract
Prostate cancer is one of the most common malignant tumors that threaten the health of men. It is urgent to explore new molecular targets and develop new drugs for the treatment of prostate cancer. Circular RNAs (circRNAs) are aberrantly expressed in various malignant tumors. The dysregulated circRNAs are involved in the metastasis, tumor growth, drug resistance, and immunosuppression of malignant tumors. The present review systematically summarized publications concerning the biological implications of circRNAs in prostate cancer. The PubMed and Web of Science databases were used to retrieve publications concerning circRNAs and prostate cancer until June 16, 2021. The following keywords were used in the literature search: (circRNA OR circular RNA) AND prostate cancer. 73 publications were enrolled in the present systematic review to summarize the role of circRNAs in prostate cancer. The dysregulated and functional circRNAs were involved in the cell cycle, proliferation, migration, invasion, metastasis, drug resistance and radiosensitivity of prostate cancer. In addition, circRNAs could function through EVs and serve as prognostic and diagnostic biomarkers. Certain circRNAs were correlated with clinicopathological features of prostate cancer. A comprehensive review of the molecular mechanism of the tumorigenesis and progression of prostate cancer may contribute to the development of new therapies of prostate cancer in the future.
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Affiliation(s)
- Fan Chao
- Department of Urology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Shiyu Wang
- Department of Urology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Cong Zhang
- Department of Urology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Dunsheng Han
- Department of Urology, Jinshan Hospital, Fudan University, Shanghai, China
| | - Guoxiong Xu
- Research Center for Clinical Medicine, Jinshan Hospital, Fudan University, Shanghai, China
| | - Gang Chen
- Department of Urology, Jinshan Hospital, Fudan University, Shanghai, China
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24
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Wang P, Zhang L, Yin S, Xu Y, Tai S, Zhang LI, Liang C. hsa_circ_0062019 promotes the proliferation, migration, and invasion of prostate cancer cells via the miR-195-5p/HMGA2 axis. Acta Biochim Biophys Sin (Shanghai) 2021; 53:815-822. [PMID: 33978716 DOI: 10.1093/abbs/gmab058] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Indexed: 02/07/2023] Open
Abstract
Circular RNA (circRNA) is a new class of non-coding RNA. It was reported that circRNA involves in the metastasis of cancer. The aim of this study is to explore the role and mechanism of circRNA hsa_circ_0062019 in the development of prostate cancer (PCa). Our results showed that hsa_circ_0062019 was highly expressed in PCa cell lines. Cell Counting Kit-8 assay revealed that upregulation of hsa_circ_0062019 boosted PCa cell proliferation, and silencing of hsa_circ_0062019 inhibited cell proliferation. Meanwhile, transwell assay proved that upregulation of hsa_circ_0062019 facilitated PCa cell invasion and migration, while downregulation of hsa_circ_0062019 inhibited these malignant phenotypes. Furthermore, luciferase reporter assay proved the binding of hsa_circ_0062019 with miR-195-5p and the binding between miR-195-5p and high mobility group AT-hook 2 (HMGA2), suggesting that hsa_circ_0062019 promoted the expression of HMGA2 by sponging miR-195-5p. In addition, our results revealed that the hsa_circ_0062019-induced PCa cell malignant phenotypes were notably reversed by the downregulation of HMGA2. Overall, our study demonstrated that hsa_circ_0062019 promoted PCa cell proliferation, migration, and invasion via upregulation of HMGA2 expression by sponging miR-195-5p. Our study proved a novel molecular mechanism of PCa development and provided a potential target for the treatment of PCa.
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Affiliation(s)
- Peiyu Wang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
| | - Ligang Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
| | - Shuiping Yin
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
| | - Yuchen Xu
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
| | - Sheng Tai
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
| | - L i Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
- Institute of Urology, Anhui Medical University, Hefei 230032, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei 230032, China
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25
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Qin L, Sun X, Zhou F, Liu C. CircLRP6 contributes to prostate cancer growth and metastasis by binding to miR-330-5p to up-regulate NRBP1. World J Surg Oncol 2021; 19:184. [PMID: 34158077 PMCID: PMC8220703 DOI: 10.1186/s12957-021-02287-2] [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: 04/13/2021] [Accepted: 06/04/2021] [Indexed: 02/06/2023] Open
Abstract
Background Circular RNA low-density lipoprotein receptor-related protein 6 (circLRP6) is considered as an oncogene in many types of cancers. However, the function and mechanisms of circLRP6 in prostate cancer (PCa) tumorigenesis remain largely undefined. Methods Quantitative real-time polymerase chain reaction (qRT-PCR) and western blot assays were conducted to assess the expression of circLRP6, microRNA (miR)-330-5p, and nuclear receptor binding protein 1 (NRBP1). Cell counting kit-8 (CCK-8), colony formation, 5-ethynyl-2’-deoxyuridine (EDU) incorporation, flow cytometry, transwell, wound healing, and western blot assays were performed to detect cell proliferation, apoptosis, and metastasis in vitro. Subcutaneous tumor growth was observed in nude mice to investigate the role of circLRP6 in vivo. The targeting relationship between miR-330-5p and NRBP1 or circLRP6 was verified using dual-luciferase reporter, pull-down, and RNA immunoprecipitation (RIP) assays. Immunohistochemistry was employed to test relative protein expression. Results CircLRP6 was highly expressed in PCa tissues and cells, knockdown of circLRP6 impaired PCa cell growth and metastasis in vitro by affecting cell proliferation, apoptosis, invasion, migration, and epithelial-mesenchymal transition (EMT). Mechanistic studies showed that circLRP6 could competitively bind with miR-330-5p to prevent the degradation of its target gene NRBP1. Rescue assay suggested that miR-330-5p inhibition reversed the inhibitory effects of circLRP6 knockdown on PCa cell growth and metastasis. Moreover, overexpression of miR-330-5p suppressed PCa progression via NRBP1. Notably, tumor formation assay indicated that circLRP6 silencing impeded tumor growth and EMT in vivo. Conclusion Our findings demonstrated that circLRP6 promoted PCa tumorigenesis and metastasis through miR-330-5p/NRBP1 axis, suggesting a potential therapeutic target for PCa. Supplementary Information The online version contains supplementary material available at 10.1186/s12957-021-02287-2.
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Affiliation(s)
- Linghui Qin
- Department of Urology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China
| | - Xiaosong Sun
- Department of Urology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China
| | - Fei Zhou
- Department of Urology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China
| | - Cheng Liu
- Department of Urology, Xiangyang Central Hospital, Affiliated Hospital of Hubei University of Arts and Science, No. 136, Jingzhou Street, Xiangyang, 441021, Hubei, China.
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26
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Circular RNAs as microRNA sponges: evidence and controversies. Essays Biochem 2021; 65:685-696. [PMID: 34028529 DOI: 10.1042/ebc20200060] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/08/2021] [Accepted: 04/19/2021] [Indexed: 12/16/2022]
Abstract
Gene expression in eukaryotic cells is a complex process encompassing several layers of regulation at the transcriptional and post-transcriptional levels. At the post-transcriptional level, microRNAs (miRs) are key regulatory molecules that function by binding directly to mRNAs. This generally leads to less efficient translation of the target mRNAs. More recently, an additional layer of gene regulation has been discovered, as other molecules, including circular RNAs (circRNAs), may bind to miRs and thereby function as sponges or decoys resulting in increased expression of the corresponding miR target genes. The circRNAs constitute a large class of mainly non-coding RNAs, which have been extensively studied in recent years, in particular in the cancer research field where many circRNAs have been proposed to function as miR sponges. Here, we briefly describe miR-mediated gene regulation and the extra layer of regulation that is imposed by the circRNAs. We describe techniques and methodologies that are commonly used to investigate potential miR sponging properties of circRNAs and discuss major pitfalls and controversies within this relatively new research field.
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27
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Pan J, Liu Z, Yang Z, Liang E, Fang C, Zhang D, Zhou X, Niu Y, Xin Z, Chen Y, Cai Q. Circ_0001686 Promotes Prostate Cancer Progression by Up-Regulating SMAD3/TGFBR2 via miR-411-5p. World J Mens Health 2021; 40:149-161. [PMID: 34169675 PMCID: PMC8761241 DOI: 10.5534/wjmh.200204] [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: 01/20/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 11/15/2022] Open
Abstract
Purpose As the mechanism of interaction between circular RNAs (circRNAs) and microRNAs (miRNAs) in regulating the development of prostate cancer (PCa) is not clear, this study focuses on investigating these effects. Materials and Methods Sample tissues were collected from the PCa of patients, and microarray analysis of human circRNAs was conducted. The expression of circ_0001686, hsa_miR-411-5p (miR-411-5p) were also detected by qRT-PCR. Circ_0001686 and miR-411-5p mimics were transfected into the PCa cell lines (CWR22RV1and LNCaP) and MTT, colony formation, Transwell, and scratch wound assays were used to analyze the biological behaviors of PCa cells. Si-circ_0001686 and ASO-miR-411-5p were used as negative controls, and dual-luciferase reporter assays were performed to verify the interactions among circ_0001686, miR-411-5p, and SMAD3/TGFBR2. The levels of SMAD3 and TGFBR2 in different treated PCa cells were measured by western blot, and in vivo experiments in a nude mouse model were carried out to strengthen the in vitro findings of miR-411-5p. Results The expression of circ_0001686 was up-regulated, while the expression of miR-411-5p was down-regulated in PCa cells. Moreover, circ_0001686 promoted cell proliferation, migration, and invasion. Molecular mechanism exploration revealed that circ_0001686 could reduce miR-411-5p, affecting the downstream target genes of SMAD3 and TGFBR2. In vitro and in vivo studies verified that miR-411-5p inhibits PCa progression. Conclusions Circ_0001686 can reduce miR-411-5p to increase the expression of SMAD3/TGFBR2, which consequently promotes the proliferation, invasion, and migration of PCa cells.
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Affiliation(s)
- Jiancheng Pan
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Zihao Liu
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Zhizhao Yang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Enli Liang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Cheng Fang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Dingrong Zhang
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Xiaodong Zhou
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Yuanjie Niu
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Zhongcheng Xin
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China
| | - Yegang Chen
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China.
| | - Qiliang Cai
- Department of Urology, the Second Hospital of Tianjin Medical University, Tianjin Institute of Urology, Tianjin, China.
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28
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Wang X, Xue B, Zhang Y, Guo G, Duan X, Dou D. Up-regulated circBACH2 contributes to cell proliferation, invasion, and migration of triple-negative breast cancer. Cell Death Dis 2021; 12:412. [PMID: 33875646 PMCID: PMC8055688 DOI: 10.1038/s41419-021-03684-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 03/25/2021] [Accepted: 03/25/2021] [Indexed: 02/06/2023]
Abstract
An increasing amount of evidence has proven the vital role of circular RNAs (circRNAs) in cancer progression. However, there remains a dearth of knowledge on the function of circRNAs in triple-negative breast cancer (TNBC). Utilizing a circRNA microarray dataset, four circRNAs were identified to be abnormally expressed in TNBC. Among them, circBACH2 was most significantly elevated in TNBC cancerous tissues and its high expression was positively correlated to the malignant progression of TNBC patients. In normal human mammary gland cell line, the overexpression of circBACH2 facilitated epithelial to mesenchymal transition and cell proliferation. In TNBC cell lines, circBACH2 knockdown suppressed the malignant progression of TNBC cells. Mechanistically, circBACH2 sponged miR-186-5p and miR-548c-3p, thus releasing the C-X-C chemokine receptor type 4 (CXCR4) expression. The interference of miR-186-5p/miR-548c-3p efficiently promoted the cell proliferation, migration, and invasion suppressed by circBACH2 knockdown in the TNBC cell lines. Finally, circBACH2 knockdown repressed the growth and lung metastasis of TNBC xenografts in nude mice. In summary, circBACH2 functions as an oncogenic circRNA in TNBC through a novel miR-186-5p/miR-548c-3p/CXCR4 axis.
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Affiliation(s)
- Xinxing Wang
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, No.1 Jianshedong Road, Erqi District, Zhengzhou, Henan Province, People's Republic of China
| | - Bingjian Xue
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, No.1 Jianshedong Road, Erqi District, Zhengzhou, Henan Province, People's Republic of China
| | - Yujie Zhang
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, No.1 Jianshedong Road, Erqi District, Zhengzhou, Henan Province, People's Republic of China
| | - Guangcheng Guo
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, No.1 Jianshedong Road, Erqi District, Zhengzhou, Henan Province, People's Republic of China
| | - Xin Duan
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, No.1 Jianshedong Road, Erqi District, Zhengzhou, Henan Province, People's Republic of China
| | - Dongwei Dou
- Department of Breast Surgery, the First Affiliated Hospital of Zhengzhou University, No.1 Jianshedong Road, Erqi District, Zhengzhou, Henan Province, People's Republic of China.
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29
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Wang D, Yan S, Wang L, Li Y, Qiao B. circSLC8A1 Acts as a Tumor Suppressor in Prostate Cancer via Sponging miR-21. BIOMED RESEARCH INTERNATIONAL 2021; 2021:6614591. [PMID: 33869627 PMCID: PMC8035017 DOI: 10.1155/2021/6614591] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 03/12/2021] [Accepted: 03/17/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND There is more and more evidence showed that circRNAs played essentially role in the regulation of various biological processes. The role of circSLC8A1 in prostate cancer (PCa) is yet little known. METHODS The CircSLC8A1 expression in human prostate cancer was measured by qRT-PCR. The interplay between the specific circRNA, miRNA, and mRNA was investigated by RT-PCR and luciferase reporter assay. Through transient transfection of siRNA, the impacts of circSLC8A1 on PCa were discussed. Cell cycle evaluation, transwell assay, and CCK-8 assay were employed to determine its biological influences. RESULTS In this study, our data revealed that circSLC8A1 was downregulated in PCa tissues and cells. The reduction of circSLC8A1 resulted in the inhibition of cell proliferation and migration. In mechanism, circSLC8A1 exhibited a direct interaction with miR-21 and displayed as a miRNA sponge to inhibit PCa progression. The functional analysis revealed that the circSLC8A1/miR-21 axis may regulate the cell proliferation, angiogenesis, cell migration, epithelial to mesenchymal transition, MAPK signaling pathway, and chemokine signaling pathway. CONCLUSIONS CircSLC8A1 functioned as an inhibitor of neoplasm via modulating the miR-21 and might serve as a prospective target for the treatment of PCa.
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Affiliation(s)
- Daoyuan Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Department of Urology, 989th Hospital of the Joint Logistic Support Force, Luoyang, China
| | - Shuxian Yan
- Department of Urology, 989th Hospital of the Joint Logistic Support Force, Luoyang, China
| | - Lihui Wang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yunlong Li
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Baoping Qiao
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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30
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Wang J, Zhang Y, Liu L, Yang T, Song J. Circular RNAs: new biomarkers of chemoresistance in cancer. Cancer Biol Med 2021; 18:j.issn.2095-3941.2020.0312. [PMID: 33738995 PMCID: PMC8185855 DOI: 10.20892/j.issn.2095-3941.2020.0312] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 11/27/2020] [Indexed: 12/17/2022] Open
Abstract
Chemotherapeutics are validated conventional treatments for patients with advanced cancer. However, with continual application of chemotherapeutics, chemoresistance, which is often predictive of poor prognosis, has gradually become a concern in recent years. Circular RNAs (circRNAs), a class of endogenous noncoding RNAs (ncRNAs) with a closed-loop structure, have been reported to be notable targets and markers for the prognosis, diagnosis, and treatment of many diseases, particularly cancer. Although dozens of studies have shown that circRNAs play major roles in drug-resistance activity in tumors, the mechanisms by which circRNAs affect chemoresistance have yet to be explored. In this review, we describe the detailed mechanisms of circRNAs and chemotherapeutics in various cancers and summarize potential therapeutic targets for drug-resistant tumors.
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Affiliation(s)
- Jiaqi Wang
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
- Institute of Digestive Diseases of Xuzhou Medical University, Xuzhou 221002, China
| | - Yi Zhang
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Lianyu Liu
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
- Institute of Digestive Diseases of Xuzhou Medical University, Xuzhou 221002, China
| | - Ting Yang
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - Jun Song
- Department of General Surgery, The Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
- Institute of Digestive Diseases of Xuzhou Medical University, Xuzhou 221002, China
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Mao Y, Li W, Hua B, Gu X, Pan W, Chen Q, Xu B, Lu C, Wang Z. Circular RNA_PDHX Promotes the Proliferation and Invasion of Prostate Cancer by Sponging MiR-378a-3p. Front Cell Dev Biol 2021; 8:602707. [PMID: 33634097 PMCID: PMC7901981 DOI: 10.3389/fcell.2020.602707] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 12/02/2020] [Indexed: 12/12/2022] Open
Abstract
The dysregulation of circular RNAs (circRNAs) is implicated in the pathogenesis of prostate cancer (PCa). However, the underlying mechanisms by which hsa_circ_0003768 (circPDHX) contributes to PCa remain elusive. The differentially expressed circRNAs between PCa and normal tissues were identified by Gene Expression Omnibus dataset. The association of circPDHX and miR-378a-3p expression with the clinicopathological parameters and prognosis in patients with PCa was analyzed by fluorescence in situ hybridization and The Cancer Genome Atlas dataset. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and Transwell assays as well as a xenograft tumor model were used to assess the role of circPDHX in PCa cells. circPDHX-specific binding with miR-378a-3p was validated by bioinformatic analysis, luciferase gene reporter, and RNA immunoprecipitation assays. As a result, we found that increased expression of circPDHX was associated with Gleason score (P = 0.001) and pathogenic T stage (P = 0.01) and acted as an independent prognostic factor of poor survival (P = 0.036) in patients with PCa. Knockdown of circPDHX inhibited cell proliferation and invasion in vitro and in vivo, but ectopic expression of circPDHX reversed these effects. Furthermore, circPDHX could sponge miR-378a-3p to promote cell proliferation, but miR-378a-3p counteracted circPDHX-induced cell proliferation and insulin-like growth factor 1 receptor (IGF1R) expression in PCa cells. In conclusion, our findings demonstrated that circPDHX facilitated the proliferation and invasion of PCa cells by sponging miR-378a-3p.
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Affiliation(s)
- Yuanshen Mao
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenfeng Li
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bao Hua
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xin Gu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weixin Pan
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi Chen
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bin Xu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Chao Lu
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhong Wang
- Department of Urology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Zhou H, Zheng XD, Lin CM, Min J, Hu S, Hu Y, Li LY, Chen JS, Liu YM, Li HD, Meng XM, Li J, Yang YR, Xu T. Advancement and properties of circular RNAs in prostate cancer: An emerging and compelling frontier for discovering. Int J Biol Sci 2021; 17:651-669. [PMID: 33613119 PMCID: PMC7893591 DOI: 10.7150/ijbs.52266] [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: 08/21/2020] [Accepted: 12/18/2020] [Indexed: 01/12/2023] Open
Abstract
Prostate cancer (PC) is the most common carcinoma among men worldwide which results in 26% of leading causes of cancer-related death. However, the ideal and effective molecular marker remains elusive. CircRNA, initially observed in plant-infected viruses and Sendai virus in 1979, is generated from pre-mRNA back-splicing and comes in to play by adequate expression. The differential expression in prostate tissues compared with the control reveals the promising capacity in modulating processes including carcinogenesis and metastasis. However, the biological mechanisms of regulatory network in PC needs to systemically concluded. In this review, we enlightened the comprehensive studies on the definite mechanisms of circRNAs affecting tumor progression and metastasis. What's more, we validated the potential clinical application of circRNAs serving as diagnostic and prognostic biomarker. The discussion and analysis in circRNAs will broaden our knowledge of the pathogenesis of PC and further optimize the current therapies against different condition.
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Affiliation(s)
- Hong Zhou
- Department of Pharmacy, Anhui Provincial Cancer Hospital, The First Affiliated Hospital of USTC West District, University of Science and Technology of China, Hefei 230031, China.,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Xu-Dong Zheng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Chang-Ming Lin
- Department of Urology, the Fourth Affiliated Hospital of Anhui Medical University, Hefei, 230011, China
| | - Jie Min
- Department of Urology, The Second Hospital of Anhui Medical University, Hefei 230601, China
| | - Shuang Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Ying Hu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Liang-Yun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Jia-Si Chen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Yu-Min Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Hao-Dong Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
| | - Ya-Ru Yang
- Department of Clinical Trial Research Center, The Second Hospital of Anhui Medical University, Hefei, 230601, China
| | - Tao Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei, 230032, China.,Institute for Liver Diseases of Anhui Medical University, Hefei 230032, China
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Li C, Mu J, Shi Y, Xin H. LncRNA CCDC26 Interacts with CELF2 Protein to Enhance Myeloid Leukemia Cell Proliferation and Invasion via the circRNA_ANKIB1/miR-195-5p/PRR11 Axis. Cell Transplant 2021; 30:963689720986080. [PMID: 33439746 PMCID: PMC7809300 DOI: 10.1177/0963689720986080] [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] [Indexed: 01/06/2023] Open
Abstract
LncRNA CCDC26 is aberrantly expressed in myeloid leukemia (ML) and promotes myeloid leukemia progression, but the potential mechanism of CCDC26 in regulating ML progression is unclear. In this study, we observed that lncRNA CCDC26 was upregulated in both chronic and acute ML cell lines. LncRNA CCDC26 promoted the proliferation and invasion of K562 and HL-60 cells, which was determined by cell counting kit-8 test and Transwell invasion assay. Flow cytometry showed that lncRNA CCDC26 inhibited cell apoptosis. Bioinformatics and expression correlation analyses revealed that there was a potential interaction between CCDC26 and CUGBP Elav-like family member 2 (CELF2) protein, an RNA bind protein (RBP). Then the relationship between CCDC26 and the RBP CELF2 was identified by using RNA pull-down and RNA immunoprecipitation (RNA-IP) assays. Further analysis showed that overexpression of CCDC26 could noticeably upregulate circRNA_ANKIB1 expression via sponging CELF2. Subsequently, we found that overexpressed circRNA_ANKIB1 could significantly promote proline rich 11 (PRR11) protein expression by sponging miR-195a-5p. Moreover, PRR11 was also upregulated by CCDC26 and downregulated by CELF2. Mechanically, we uncovered that the miR-195a-5p inhibitor activated the phosphatidylinositol 3-kinase (PI3K)/protein kinase B (AKT) and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathways through upregulating PRR11 protein expression. Furthermore, the inhibitors of AKT, p65-NF-κB, or Bcl-2 could inhibit the effect of the miR-195a-5p inhibitor on ML cell behaviors. In conclusion, lncRNA CCDC26 could upregulate PRR11 protein expression by sponging miR-195a-5p, thereby activating the PI3K/AKT and NF-κB pathways to enhance ML cell proliferation and invasion and suppress cell apoptosis.
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Affiliation(s)
- Chengliang Li
- Department of General Practice, the First Affiliated Hospital of Xi’an Medical University, Xi’an, P. R. China,Both the authors contributed equally to this article
| | - Jianjun Mu
- Department of Cardiology, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, P. R. China,Both the authors contributed equally to this article
| | - Yingpeng Shi
- Department of General Practice, the First Affiliated Hospital of Xi’an Medical University, Xi’an, P. R. China
| | - Hong Xin
- Department of Cardiovasology, the First Affiliated Hospital of Xi’an Medical University, Xi’an, P. R. China,Hong Xin, Department of Cardiovasology, The First Affiliated Hospital of Xi’an Medical University, No. 48 Fenghao West Road, Xi’an 710077, P. R. China.
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Wang F, Wang X, Li J, Lv P, Han M, Li L, Chen Z, Dong L, Wang N, Gu Y. CircNOL10 suppresses breast cancer progression by sponging miR-767-5p to regulate SOCS2/JAK/STAT signaling. J Biomed Sci 2021; 28:4. [PMID: 33397365 PMCID: PMC7780627 DOI: 10.1186/s12929-020-00697-0] [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: 07/28/2020] [Accepted: 11/26/2020] [Indexed: 12/20/2022] Open
Abstract
Background Circular RNAs (circRNAs) have caught increasing attentions and interests for their important involvement in cancer initiation and progression. This study aims to investigate the biological functions of circNOL10 and its potential molecular mechanisms in breast cancer (BC). Materials and methods qRT-PCR and western blot assays were performed to measure the expression of related genes. CCK-8, colony formation, flow cytomerty and transwell assays were used to assess cell proliferation, cell cycle, migration and invasion. RNA pull-down, luciferase reporter and RIP assays were applied to address the potential regulatory mechanism of circNOL10. Results CircNOL10 was down-regulated in BC tissues and cells. Low expression of circNOL10 was associated with larger tumor size, advanced TNM stage, lymph node metastasis and unfavorable prognosis. Overexpression of circNOL10 inhibited cell proliferation, migration, invasion and EMT in vitro and slowed xenograft tumor growth in vivo. Mechanistically, circNOL10 could act as a molecular sponge for miR-767-5p, leading to the up-regulation of suppressors of cytokine signaling 2 (SOCS2) and inactivation of JAK2/STAT5 pathway. Moreover, circNOL10-mediated suppression of malignant phenotypes was attenuated by miR-767-5p. Similar to circNOL10, enforced expression of SOCS2 also resulted in the suppression of cell proliferation and metastasis. Furthermore, knockdown of SOCS2 reversed the tumor-suppressive effect induced by circNOL10. Conclusions CircNOL10 repressed BC development via inactivation of JAK2/STAT5 signaling by regulating miR-767-5p/SOCS2 axis. Our findings offer the possibility of exploiting circNOL10 as a therapeutic and prognostic target for BC patients.
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Affiliation(s)
- Fang Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Xiaochun Wang
- Department of Breast Surgery, Affiliated Hospital of Hebei University, Baoding, 071000, China
| | - Jingruo Li
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Pengwei Lv
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Mingli Han
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Lin Li
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Zhuo Chen
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Lingling Dong
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Nan Wang
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China
| | - Yuanting Gu
- Department of Breast Surgery, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Erqi, Zhengzhou, 450000, China.
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Gong L, Tang Y, Jiang L, Tang W, Luo S. Regulation of circGOLPH3 and its binding protein CBX7 on the proliferation and apoptosis of prostate cancer cells. Biosci Rep 2020; 40:BSR20200936. [PMID: 33245100 PMCID: PMC7736626 DOI: 10.1042/bsr20200936] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 09/30/2020] [Accepted: 11/16/2020] [Indexed: 02/07/2023] Open
Abstract
To clarify the mechanism of circGOLPH3 regulation on prostate cancer cells, we performed an overexpression and interference circGOLPH3 assay in prostate cancer cells PC-3 and then evaluated cellular viability, proliferation, cell cycle, and apoptosis of prostate cancer cells by MTT, CCK8, Edu stain, TUNEL stain, and flow cytometry. Binding proteins of CircGOLPH3 were identified by RNA pull-down, mass spectrometry, and RNA-binding protein immunoprecipitation (RIP) assays. The expressions of CircGOLPH3 and CBX7 were measured by qRT-PCR. The results showed that after overexpression of circGOLPH3, the proliferative capacity and the viability of PC-3cells were significantly improved, whereas apoptosis was inhibited. CircGOLPH3 could bind to the CBX7 protein that was highly expressed in the PC-3 cell. Additionally, a functional test on CBX7 showed that the CBX7 overexpression notably improved the proliferative capacity and the viability of PC-3 cells and decreased cellular apoptosis, which was consistent with the effects of circGOLPH3. The validated the present study that circGOLPH3 and its binding protein CBX7 can promote prostate cancer cell proliferation and inhibit apoptosis.
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Affiliation(s)
- Lifeng Gong
- Chengdu Second People's Hospital, Chengdu 10017, P.R. China
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Yu Tang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Li Jiang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Wei Tang
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
| | - Shengjun Luo
- Department of Urology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, P.R. China
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Huang B, Zhou D, Huang X, Xu X, Xu Z. Silencing circSLC19A1 Inhibits Prostate Cancer Cell Proliferation, Migration and Invasion Through Regulating miR-326/MAPK1 Axis. Cancer Manag Res 2020; 12:11883-11895. [PMID: 33239918 PMCID: PMC7682465 DOI: 10.2147/cmar.s267927] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/03/2020] [Indexed: 12/18/2022] Open
Abstract
Background Emerging evidence indicates that circular RNAs (circRNAs), which form as covalently closed loops, play a regulatory role in various types of cancer, including prostate cancer (PCa). CircSLC19A1, one kind of circRNA, was subjected to the study and its role in PCa was explored. Methods Expressions of circSLC19A1, miR-326 and MAPK1 in PCa tissues and cells were assessed by qRT-PCR. CircSLC19A1 was identified by RNase R treatment. The binding relations between circSLC19A1 and miR-326 and between miR-326 and MAPK1 were predicted by RegRNA2.0 or Targetscan7.2 and further confirmed by dual-luciferase reporter assay. Pearson correlation analysis of the correlation among circSLC19A1, miR-326 and MAPK1 was performed. CCK-8, cell colony formation, wound healing and Transwell assays were used to assess PCa cell viability, proliferation, migration and invasion, respectively. Results CircSLC19A1 expression was up-regulated in PCa tissue and cell cytoplasm. Silencing circSLC19A1 inhibited PCa cell viability, proliferation, migration, invasion and miR-326 expression. MiR-326 inhibitor promoted the luciferase activities of circSLC19A1 and MAPK1, increased MAPK1 expression and facilitated PCa cell progression. MiR-326 expression was down-regulated in PCa tissue and there was a negative correlation between miR-326 and circSLC19A1 expressions. MAPK1 expression was up-regulated in PCa tissue. There was a negative correlation between MAPK1 and miR-326 expressions as well as a positive correlation between MAPK1 and circSLC19A1 expressions. Silencing MAPK1 promoted the viability, proliferation, migration, and invasion of PCa cells co-transfected with siRNA-circSLC19A1a and miR-326 inhibitor. Conclusion CircSLC19A1 silencing inhibited PCa cell proliferation, migration and invasion through regulating miR-326/MAPK1 axis.
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Affiliation(s)
- Banggao Huang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, People's Republic of China
| | - Danhong Zhou
- Department of Surgery, The Third People's Hospital of Hangzhou, Hangzhou, Zhejiang Province, People's Republic of China
| | - Xinmian Huang
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, People's Republic of China
| | - Xiaobo Xu
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, People's Republic of China
| | - Zhihui Xu
- Department of Urology, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang Province, People's Republic of China
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Fan Z, Bai Y, Zhang Q, Qian P. CircRNA circ_POLA2 promotes lung cancer cell stemness via regulating the miR-326/GNB1 axis. ENVIRONMENTAL TOXICOLOGY 2020; 35:1146-1156. [PMID: 32511866 DOI: 10.1002/tox.22980] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/09/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Circular RNAs (CircRNAs) are a group of noncoding RNAs that have essential function in the development and progression of various cancers. The expression pattern and function of circRNA in lung cancer is not fully understood. In the present study, we aimed to investigate the expression profiles and underlying mechanism of circRNA circ_POLA2 in lung cancer cell stemness. Circ_POLA2 was highly expressed in lung cancer tissues and predicted a poor prognosis in lung cancer patients. Knockdown of circ_POLA2 inhibited the stemness of lung cancer cells, which is evident by the decreased sphere-formation ability, ALDH1 activity, and stemness marker expression, but had no effects on cell viability. Mechanistically, circ_POLA2 functioned as a ceRNA by sponging miR-326. Furthermore, miR-326 negatively regulated G protein subunit beta 1 (GNB1) expression by targeting its 3'-UTR (untranslated region). Intriguingly, we found that GNB1 was overexpressed and associated with poor prognosis in lung cancer patients. Overexpression of GNB1 could antagonize the inhibitory effect of circ_POLA2 knockdown on lung cancer cell stemness. In conclusion, circ_POLA2 promotes lung cancer cell stemness and progression via regulating the miR-326/GNB1 axis, which might serve as a novel therapeutic target for lung cancer patients.
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Affiliation(s)
- Zhaohui Fan
- Department of Thoracic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Yongkang Bai
- Department of Thoracic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Qian Zhang
- Department of Thoracic Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
| | - Pudong Qian
- Department of Radiotherapy, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research & The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, China
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Construction of circRNA-Associated ceRNA Network Reveals Novel Biomarkers for Esophageal Cancer. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2020; 2020:7958362. [PMID: 32908582 PMCID: PMC7474783 DOI: 10.1155/2020/7958362] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Accepted: 07/27/2020] [Indexed: 02/08/2023]
Abstract
Objective Esophageal cancer (ESCC) is reported to be the eighth most common malignant tumors worldwide with high mortality. However, the functions of majority circRNAs in ESCC requires to be further explored. Methods This study identified differently expressed circRNAs in 3 paired ESCC using RNA-sequencing method. The interactions among circRNAs, miRNAs, and mRNAs were predicted using bioinformatics analysis. Results In this study, using RNA-sequencing method and integrated bioinformatics analysis, 418 overexpressed circRNAs and 637 reduced circRNAs in ESCC sample were identified. Based on the mechanism that circRNAs could play as ceRNAs to modulate targets expression, circRNA-miRNA and circRNA-miRNA-mRNA networks were constructed in this study. Based on the network analysis, 7 circRNAs, including circ_0002255, circ_0000530, circ_0001904, circ_0001005, circ_0000513, circ_0000075, and circ_0001121, were identified as key circRNAs in ESCC. We found that circ_0002255 was related to the regulation of substrate adhesion-dependent cell spreading. circ_0001121 was involved in regulating nucleocytoplasmic transport. circ_0000513 played a key role in regulating Adherens junction, B cell receptor signaling pathway. Meanwhile, we observed circ_0000075 was involved in regulating zinc II ion transport, transition metal ion homeostasis, and angiogenesis. Conclusion We thought this study could provide novel biomarkers for the prognosis of ESCC.
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Xu T, Wang M, Jiang L, Ma L, Wan L, Chen Q, Wei C, Wang Z. CircRNAs in anticancer drug resistance: recent advances and future potential. Mol Cancer 2020; 19:127. [PMID: 32799866 PMCID: PMC7429705 DOI: 10.1186/s12943-020-01240-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/31/2020] [Indexed: 12/13/2022] Open
Abstract
CircRNAs are a novel class of RNA molecules with a unique closed continuous loop structure. CircRNAs are abundant in eukaryotic cells, have unique stability and tissue specificity, and can play a biological regulatory role at various levels, such as transcriptional and posttranscriptional levels. Numerous studies have indicated that circRNAs serve a crucial purpose in cancer biology. CircRNAs regulate tumor behavioral phenotypes such as proliferation and migration through various molecular mechanisms, such as miRNA sponging, transcriptional regulation, and protein interaction. Recently, several reports have demonstrated that they are also deeply involved in resistance to anticancer drugs, from traditional chemotherapeutic drugs to targeted and immunotherapeutic drugs. This review is the first to summarize the latest research on circRNAs in anticancer drug resistance based on drug classification and to discuss their potential clinical applications.
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Affiliation(s)
- Tianwei Xu
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Mengwei Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Lihua Jiang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Li Ma
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Li Wan
- Department of Oncology, The Affiliated Huai'an No.1 People's Hospital of Nanjing Medical University, Huai'an, 223300, Jiangsu, China
| | - Qinnan Chen
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China
| | - Chenchen Wei
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China.
| | - Zhaoxia Wang
- Cancer Medical Center, The Second Affiliated Hospital of Nanjing Medical University, Jiangjiayuan road 121#, Nanjing, 210011, Jiangsu, P.R. China.
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Karimzadeh MR, Pourdavoud P, Ehtesham N, Qadbeigi M, Asl MM, Alani B, Mosallaei M, Pakzad B. Regulation of DNA methylation machinery by epi-miRNAs in human cancer: emerging new targets in cancer therapy. Cancer Gene Ther 2020; 28:157-174. [PMID: 32773776 DOI: 10.1038/s41417-020-00210-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2020] [Revised: 07/24/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022]
Abstract
Disruption in DNA methylation processes can lead to alteration in gene expression and function that would ultimately result in malignant transformation. In this way, studies have shown that, in cancers, methylation-associated silencing inactivates tumor suppressor genes, as effectively as mutations. DNA methylation machinery is composed of several genes, including those with DNA methyltransferases activity, proteins that bind to methylated cytosine in the promoter region, and enzymes with demethylase activity. Based on a prominent body of evidence, DNA methylation machinery could be regulated by microRNAs (miRNAs) called epi-miRNAs. Numerous studies demonstrated that dysregulation in DNA methylation regulators like upstream epi-miRNAs is indispensable for carcinogenesis; consequently, the malignant capacity of these cells could be reversed by restoring of this regulatory system in cancer. Conceivably, recognition of these epi-miRNAs in cancer cells could not only reveal novel molecular entities in carcinogenesis, but also render promising targets for cancer therapy. In this review, at first, we have an overview of the methylation alteration in cancers, and the effect of this phenomenon in miRNAs expression and after that, we conduct an in-depth discussion about the regulation of DNA methylation regulators by epi-miRNAs in cancer cells.
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Affiliation(s)
- Mohammad Reza Karimzadeh
- Department of medical Genetics, School of Medicine, Bam University of Medical Sciences, Bam, Iran
| | | | - Naeim Ehtesham
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Masood Movahedi Asl
- Non-Communicable Diseases Research Center, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Behrang Alani
- Department of Applied Cell Sciences, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Iran
| | - Meysam Mosallaei
- Department of Genetics and Molecular Biology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Bahram Pakzad
- Department of Internal Medicine, School of Medicine, Isfahan University of Medical Science, Isfahan, Iran.
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Ashrafizadeh M, Najafi M, Ang HL, Moghadam ER, Mahabady MK, Zabolian A, Jafaripour L, Bejandi AK, Hushmandi K, Saleki H, Zarrabi A, Kumar AP. PTEN, a Barrier for Proliferation and Metastasis of Gastric Cancer Cells: From Molecular Pathways to Targeting and Regulation. Biomedicines 2020; 8:E264. [PMID: 32756305 PMCID: PMC7460532 DOI: 10.3390/biomedicines8080264] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/23/2020] [Accepted: 07/23/2020] [Indexed: 02/06/2023] Open
Abstract
Cancer is one of the life-threatening disorders that, in spite of excellent advances in medicine and technology, there is no effective cure for. Surgery, chemotherapy, and radiotherapy are extensively applied in cancer therapy, but their efficacy in eradication of cancer cells, suppressing metastasis, and improving overall survival of patients is low. This is due to uncontrolled proliferation of cancer cells and their high migratory ability. Finding molecular pathways involved in malignant behavior of cancer cells can pave the road to effective cancer therapy. In the present review, we focus on phosphatase and tensin homolog (PTEN) signaling as a tumor-suppressor molecular pathway in gastric cancer (GC). PTEN inhibits the PI3K/Akt pathway from interfering with the migration and growth of GC cells. Its activation leads to better survival of patients with GC. Different upstream mediators of PTEN in GC have been identified that can regulate PTEN in suppressing growth and invasion of GC cells, such as microRNAs, long non-coding RNAs, and circular RNAs. It seems that antitumor agents enhance the expression of PTEN in overcoming GC. This review focuses on aforementioned topics to provide a new insight into involvement of PTEN and its downstream and upstream mediators in GC. This will direct further studies for evaluation of novel signaling networks and their targeting for suppressing GC progression.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz 5166616471, Iran;
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah 6715847141, Iran;
| | - Hui Li Ang
- Cancer Science Institute of Singapore and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore;
| | - Ebrahim Rahmani Moghadam
- Department of Anatomical Sciences, School of Medicine, Student Research Committee, Shiraz University of Medical Sciences, Shiraz 7134814336, Iran;
- Kazerun Health Technology Incubator, Shiraz University of Medical Sciences, Shiraz 6461665145, Iran
| | - Mahmood Khaksary Mahabady
- Anatomical Sciences Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan 8715988141, Iran;
| | - Amirhossein Zabolian
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran 1916893813, Iran; (A.Z.); (A.K.B.); (H.S.)
| | - Leila Jafaripour
- Department of Anatomy, School of Medicine, Dezful University of Medical Sciences, Dezful 3419759811, Iran;
| | - Atefe Kazemzade Bejandi
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran 1916893813, Iran; (A.Z.); (A.K.B.); (H.S.)
| | - Kiavash Hushmandi
- Department of Food Hygiene and Quality Control, Division of Epidemiology & Zoonoses, Faculty of Veterinary Medicine, University of Tehran, Tehran 1417414418, Iran;
| | - Hossein Saleki
- Young Researchers and Elite Club, Tehran Medical Sciences, Islamic Azad University, Tehran 1916893813, Iran; (A.Z.); (A.K.B.); (H.S.)
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla 34956, Istanbul, Turkey
- Center of Excellence for Functional Surfaces and Interfaces (EFSUN), Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla 34956, Istanbul, Turkey
| | - Alan Prem Kumar
- Cancer Science Institute of Singapore and Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore;
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Shang A, Gu C, Wang W, Wang X, Sun J, Zeng B, Chen C, Chang W, Ping Y, Ji P, Wu J, Quan W, Yao Y, Zhou Y, Sun Z, Li D. Exosomal circPACRGL promotes progression of colorectal cancer via the miR-142-3p/miR-506-3p- TGF-β1 axis. Mol Cancer 2020; 19:117. [PMID: 32713345 PMCID: PMC7384220 DOI: 10.1186/s12943-020-01235-0] [Citation(s) in RCA: 271] [Impact Index Per Article: 67.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Accepted: 07/21/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is the leading cause of cancer-related death worldwide. Exosome shave emerged as crucial regulators of intercellular communication and that abundant Circular RNAs (circRNAs) are enriched within exosomes. CircRNAs are novel members of noncoding RNAs regulating cancer proliferation and progression. However, the function and regulatory mechanism of cancer-derived exosomal circRNAs in CRC remains unclear. METHODS CRC cells-derived exosomes were characterized using transmission electron microscopy, nanoparticle tracking analysis (NTA) and western blot. CCK-8, wound healing and transwell assays, and flow cytometry assays were conducted to assess whether exosomes would affect the proliferation, metastasis, and apoptosis of CRC cells, respectively. Moreover, we performed the RNA sequencing and RT-qPCR to identify circRNAs in exosome-stimulated CRC cells. Fluorescence in situ hybridization (FISH) assay was used to detect the cellular distribution of circPACRGL. Bioinformatic analyses (StarBase 2.0) were used to pool the miRNA targets of circPACRGL. Luciferase assays were performed to verify the direct interaction. Finally, flow cytometry was used to detect the differentiation of N1-N2 neutrophils. RESULTS Our study identified a novel CRC-derived exosomal circRNA, circPACRGL. We found circPACRGL was significantly upregulated in CRC cells after tumor-derived exosomes addition. Moreover, circPACRGL serves as a sponge for miR-142-3p/miR-506-3p to facilitate the transforming growth factor-β1 (TGF-β1) expression. As a result, circPACRGL promoted CRC cell proliferation, migration and invasion, as well as differentiation of N1 to N2 neutrophils via miR-142-3p/miR-506-3p-TGF-β1 axis. CONCLUSION Our study, the first to reveal that cancer-derived exosomal circPACRGL plays an oncogenic role in CRC proliferation and metastasis, providing mechanistic insights into the roles of circRNAs in CRC progression and a valuable marker for CRC treatment.
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Affiliation(s)
- Anquan Shang
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Chenzheng Gu
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Weiwei Wang
- Department of Pathology, The Sixth People's Hospital of Yancheng City, Yancheng, 224001, P.R. China
| | - Xuan Wang
- Department of Pharmacy, Putuo People's Hospital, Tongji University School of Medicine, Shanghai, 200060, P.R. China
| | - Junjun Sun
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Bingjie Zeng
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Chen Chen
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Wenjing Chang
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Yili Ping
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Ping Ji
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Junlu Wu
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Wenqiang Quan
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China
| | - Yiwen Yao
- Department of Internal Medicine V-Pulmonology, Allergology, Respiratory Intensive Care Medicine, Saarland University Hospital, 66424, Homburg, Germany
| | - Yongxin Zhou
- Department of Thoracic-cardiovascular Surgery, Shanghai Tongji Hospital,Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China.
| | - Zujun Sun
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China.
| | - Dong Li
- Department of Laboratory Medicine, Shanghai Tongji Hospital, Tongji University School of Medicine, No. 389, Xincun Road, Putuo District, Shanghai, 200065, P.R. China.
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Gao Y, Liu J, Huan J, Che F. Downregulation of circular RNA hsa_circ_0000735 boosts prostate cancer sensitivity to docetaxel via sponging miR-7. Cancer Cell Int 2020; 20:334. [PMID: 32714093 PMCID: PMC7376840 DOI: 10.1186/s12935-020-01421-6] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/13/2020] [Indexed: 12/14/2022] Open
Abstract
Background One of the main reasons for the failure of prostate cancer (PCa) treatment is the generation of chemoresistance. Circular RNA hsa_circ_0000735 (hsa_circ_0000735) is connected with the progression of cancer. Nevertheless, the role and regulatory mechanism of hsa_circ_0000735 in the resistance of PCa to docetaxel (DTX) are unclear. Methods Expression levels of hsa_circ_0000735 and miR-7-5p (miR-7) in tissue samples and cells were examined via quantitative real-time polymerase chain reaction (qRT-PCR). The DTX sensitivity, viability, colony formation, cell cycle progression, and apoptosis of DTX-resistant PCa cells were determined via Cell Counting Kit-8 (CCK-8), cell colony formation, or flow cytometry assays. The levels of multidrug resistance protein 1 (MDR1) protein, cyclinD1, and B cell lymphoma 2 (bcl-2) were detected by western blotting. The interaction between hsa_circ_0000735 and miR-7 was verified via dual-luciferase reporter, RNA immunoprecipitation (RIP), and RNA pull-down assays. The role of hsa_circ_0000735 in vivo was validated through tumor formation experiments. Results Hsa_circ_0000735 was upregulated and miR-7 was downregulated in DTX-resistant PCa tissues and cells. High hsa_circ_0000735 expression had a shorter overall survival. Both hsa_circ_0000735 knockdown and miR-7 mimic boosted DTX sensitivity, constrained viability, colony formation, cell cycle progression, and fostered apoptosis of DTX-resistant PCa cells. Also, hsa_circ_0000735 silencing elevated DTX sensitivity and repressed tumor growth in PCa in vivo. Mechanistically, hsa_circ_0000735 served as a sponge for miR-7. MiR-7 inhibition overturned hsa_circ_0000735 silencing-mediated impacts on DTX sensitivity and the malignant behaviors of DTX-resistant PCa cells. Conclusion Hsa_circ_0000735 downregulation boosted PCa sensitivity to DTX and reduced tumor growth via sponging miR-7, providing a promising prognostic biomarker and therapeutic target for PCa.
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Affiliation(s)
- Yisheng Gao
- Guangzhou University of Chinese Medicine, Guangzhou, 510006 Guangdong China.,Department of Urology, Linyi People's Hospital, Linyi, 276003 Shandong China
| | - Jie Liu
- Department of Urology, Linyi People's Hospital, Linyi, 276003 Shandong China
| | - Jing Huan
- Guangzhou University of Chinese Medicine, Guangzhou, 510006 Guangdong China.,Department of Acupuncture and Moxibustion, Linyi People's Hospital, Linyi, 276003 Shandong China
| | - Fengyuan Che
- Guangzhou University of Chinese Medicine, Guangzhou, 510006 Guangdong China.,Department of Neurology, Linyi People's Hospital, No. 27, East Section of Jiefang Road, Lanshan District, Linyi, 276003 Shandong China
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Ashrafizadeh M, Zarrabi A, Samarghandian S, Najafi M. PTEN: What we know of the function and regulation of this onco-suppressor factor in bladder cancer? Eur J Pharmacol 2020; 881:173226. [PMID: 32485246 DOI: 10.1016/j.ejphar.2020.173226] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/14/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022]
Abstract
Bladder cancer accounts for high morbidity and mortality around the world and its incidence rate is suggested to be higher in following years. A number of factors involve in bladder cancer development such as lifestyle and drugs. However, it appears that genetic factors play a significant role in bladder cancer development and progression. Phosphatase and tensin homolog (PTEN) is a cancer-related transcription factor that is corelated with reduced proliferation and invasion of cancer cells by negatively targeting PI3K/Akt/mTOR signaling pathway. In the present review, we aimed to explore the role of PTEN in bladder cancer cells and how upstream modulators affect PTEN in this life-threatening disorder. Down-regulation of PTEN is associated with poor prognosis, chemoresistance and progression of cancer cells. Besides, microRNAs, long non-coding RNAs, circular RNAs and other molecular pathways such as NF-kB are able to target PTEN in bladder cancer cells. Notably, anti-tumor drugs such as kaempferol, β-elemene and sorafenib upregulate the expression of PTEN to exert their inhibitory effects on bladder cancer cells.
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Affiliation(s)
- Milad Ashrafizadeh
- Department of Basic Science, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, 34956, Istanbul, Turkey
| | - Saeed Samarghandian
- Healthy Ageing Research Center, Neyshabur University of Medical Sciences, Neyshabur, Iran
| | - Masoud Najafi
- Radiology and Nuclear Medicine Department, School of Paramedical Sciences, Kermanshah University of Medical Sciences, Kermanshah, Iran.
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Tang Q, Hann SS. Biological Roles and Mechanisms of Circular RNA in Human Cancers. Onco Targets Ther 2020; 13:2067-2092. [PMID: 32210574 PMCID: PMC7069569 DOI: 10.2147/ott.s233672] [Citation(s) in RCA: 121] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 02/20/2020] [Indexed: 12/15/2022] Open
Abstract
Circular RNA (circRNA) is an intriguing class of RNA with covalently closed-loop structure and is highly stable and conservative. As new members of the ncRNAs, the function, mechanism, potential diagnostic biomarker, and therapeutic target have raised increased attention. Most circRNAs are presented with characteristics of abundance, stability, conservatism, and often exhibiting tissue/developmental-stage-specific manner. Over 30,000 circRNAs have been identified with their unique structures to maintain stability more easily than linear RNAs. An increased numbers of circRNAs are dysregulated and involved in several biological processes of malignance, such as tumorigenesis, growth, invasion, metastasis, apoptosis, and vascularization. Emerging evidence suggests that circRNAs play important roles by acting as miRNA sponge or protein scaffolding, autophagy regulators, and interacting with RNA-binding protein (RBP), which may potentially serve as a novel promising biomarker for prevention, diagnosis and therapeutic target for treatment of human cancer with great significance either in scientific research or clinic arena. This review introduces concept, major features of circRNAs, and mainly describes the major biological functions and clinical relevance of circRNAs, as well as expressions and regulatory mechanisms in various types of human cancer, including pathogenesis, mode of action, potential target, signaling regulatory pathways, drug resistance, and therapeutic biomarkers. All of which provide evidence for the potential utilities of circRNAs in the diagnosis and treatment of cancer.
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Affiliation(s)
- Qing Tang
- Laboratory of Tumor Biology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, People's Republic of China
| | - Swei Sunny Hann
- Laboratory of Tumor Biology, The Second Clinical College of Guangzhou University of Chinese Medicine, Guangzhou 510120, Guangdong Province, People's Republic of China
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