1
|
Zhao J, Ma Y, Zheng X, Sun Z, Lin H, Du C, Cao J. Bladder cancer: non-coding RNAs and exosomal non-coding RNAs. Funct Integr Genomics 2024; 24:147. [PMID: 39217254 DOI: 10.1007/s10142-024-01433-9] [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: 07/28/2024] [Revised: 08/15/2024] [Accepted: 08/21/2024] [Indexed: 09/04/2024]
Abstract
Bladder cancer (BCa) is a highly prevalent type of cancer worldwide, and it is responsible for numerous deaths and cases of disease. Due to the diverse nature of this disease, it is necessary to conduct significant research that delves deeper into the molecular aspects, to potentially discover novel diagnostic and therapeutic approaches. Lately, there has been a significant increase in the focus on non-coding RNAs (ncRNAs), including microRNAs (miRNAs), long non-coding RNAs (lncRNAs), and circular RNAs (circRNAs), due to their growing recognition for their involvement in the progression and manifestation of BCa. The interest in exosomes has greatly grown due to their potential for transporting a diverse array of active substances, including proteins, nucleic acids, carbohydrates, and lipids. The combination of these components differs based on the specific cell and its condition. Research indicates that using exosomes could have considerable advantages in identifying and forecasting BCa, offering a less invasive alternative. The distinctive arrangement of the lipid bilayer membrane found in exosomes is what makes them particularly effective for administering treatments aimed at managing cancer. In this review, we have tried to summarize different ncRNAs that are involved in BCa pathogenesis. Moreover, we highlighted the role of exosomal ncRNAs in BCa.
Collapse
Affiliation(s)
- Jingang Zhao
- Department of Urology, Hangzhou Mingzhou Hospital, Hangzhou, 311215, Zhe'jiang, China
| | - Yangyang Ma
- Department of Urology, Hangzhou Mingzhou Hospital, Hangzhou, 311215, Zhe'jiang, China
| | - Xiaodong Zheng
- Department of the First Surgery, Zhejiang Provincial Corps Hospital of Chinese People's Armed Police Force, Hangzhou, 310051, Zhe'jiang, China
| | - Zhen Sun
- Department of the First Surgery, Zhejiang Provincial Corps Hospital of Chinese People's Armed Police Force, Hangzhou, 310051, Zhe'jiang, China
| | - Hongxiang Lin
- Department of Urology, Ganzhou Donghe Hospital, Ganzhou, 341000, Jiang'xi, China
| | - Chuanjun Du
- Department of Urology, Second Affiliated Hospital of Zhejiang University College of Medicine, Hangzhou, 310009, Zhe'jiang, China
| | - Jing Cao
- Department of Urology, Hangzhou Mingzhou Hospital, Hangzhou, 311215, Zhe'jiang, China.
| |
Collapse
|
2
|
Leng X, Zhang M, Xu Y, Wang J, Ding N, Yu Y, Sun S, Dai W, Xue X, Li N, Yang Y, Shi Z. Non-coding RNAs as therapeutic targets in cancer and its clinical application. J Pharm Anal 2024; 14:100947. [PMID: 39149142 PMCID: PMC11325817 DOI: 10.1016/j.jpha.2024.02.001] [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: 10/27/2023] [Revised: 01/12/2024] [Accepted: 02/01/2024] [Indexed: 08/17/2024] Open
Abstract
Cancer genomics has led to the discovery of numerous oncogenes and tumor suppressor genes that play critical roles in cancer development and progression. Oncogenes promote cell growth and proliferation, whereas tumor suppressor genes inhibit cell growth and division. The dysregulation of these genes can lead to the development of cancer. Recent studies have focused on non-coding RNAs (ncRNAs), including circular RNA (circRNA), long non-coding RNA (lncRNA), and microRNA (miRNA), as therapeutic targets for cancer. In this article, we discuss the oncogenes and tumor suppressor genes of ncRNAs associated with different types of cancer and their potential as therapeutic targets. Here, we highlight the mechanisms of action of these genes and their clinical applications in cancer treatment. Understanding the molecular mechanisms underlying cancer development and identifying specific therapeutic targets are essential steps towards the development of effective cancer treatments.
Collapse
Affiliation(s)
- Xuejiao Leng
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Mengyuan Zhang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yujing Xu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jingjing Wang
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ning Ding
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Yancheng Yu
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shanliang Sun
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Weichen Dai
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Xin Xue
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Nianguang Li
- National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ye Yang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Zhihao Shi
- Laboratory of Molecular Design and Drug Discovery, School of Science, China Pharmaceutical University, Nanjing, 211198, China
| |
Collapse
|
3
|
Chen S, Zhao M, Chen K, Xu J, Li H. A Network of Circular RNA and MicroRNA Sequencing Provides Insights into Pigment Deposition of Changshun Blue Eggshell Chickens. Genes (Basel) 2024; 15:812. [PMID: 38927747 PMCID: PMC11202489 DOI: 10.3390/genes15060812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Revised: 06/17/2024] [Accepted: 06/17/2024] [Indexed: 06/28/2024] Open
Abstract
Eggshell color plays important biological roles and attracts the attention of both egg retailers and researchers. However, whether non-coding RNAs are involved in pigment deposition among different eggshell colors remains unknown. In this study, RNA sequencing was used to analyse the uterine gland transcriptome (CircRNA and miRNA) of Changshun chicken blue-shell hens producing four different eggshell color eggs including dark blue PK(DB) and light blue (LB), dark brown and greenish (between blue and pink, DP) and pink (p). We found that miR-192-x, targeting SLC16a7, was expressed in DB, DP, and LB groups compared with the PK group, which indicates that miR-192-x may play a role in the blue eggshell color. KEGG and GO analyses showed that the "metabolic pathways" with targeted genes such BLVRA and HMOX1 were detected in dark and light blue color eggshell chickens, which confirms the different ratios of biliverdin and HO-1 involved in the deposition of blue color. As annotated by connectivity analysis, RASGRF1 and RASGRF2, belonging to the RASGRF family, are involved in the Ras signaling pathway, which plays an important role in cell growth, differentiation, metastasis and apoptosis. Our findings enrich the database of circRNA, miRNAs and genes for chicken uterine tissue, which will be useful in accelerating molecular selection for blue eggshell color layers.
Collapse
Affiliation(s)
| | | | | | | | - Hua Li
- Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Key Laboratory of Animal Molecular Design and Precise Breeding of Guangdong Higher Education Institutes, School of Life Science and Engineering, Foshan University, Foshan 528231, China
| |
Collapse
|
4
|
Simmen FA, Alhallak I, Simmen RCM. Krüppel-like Factor-9 and Krüppel-like Factor-13: Highly Related, Multi-Functional, Transcriptional Repressors and Activators of Oncogenesis. Cancers (Basel) 2023; 15:5667. [PMID: 38067370 PMCID: PMC10705314 DOI: 10.3390/cancers15235667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/16/2023] [Accepted: 11/27/2023] [Indexed: 02/12/2024] Open
Abstract
Specificity Proteins/Krüppel-like Factors (SP/KLF family) are a conserved family of transcriptional regulators. These proteins share three highly conserved, contiguous zinc fingers in their carboxy-terminus, requisite for binding to cis elements in DNA. Each SP/KLF protein has unique primary sequence within its amino-terminal and carboxy-terminal regions, and it is these regions which interact with co-activators, co-repressors, and chromatin-modifying proteins to support the transcriptional activation and repression of target genes. Krüppel-like Factor 9 (KLF9) and Krüppel-like Factor 13 (KLF13) are two of the smallest members of the SP/KLF family, are paralogous, emerged early in metazoan evolution, and are highly conserved. Paradoxically, while most similar in primary sequence, KLF9 and KLF13 display many distinct roles in target cells. In this article, we summarize the work that has identified the roles of KLF9 (and to a lesser degree KLF13) in tumor suppression or promotion via unique effects on differentiation, pro- and anti-inflammatory pathways, oxidative stress, and tumor immune cell infiltration. We also highlight the great diversity of miRNAs, lncRNAs, and circular RNAs which provide mechanisms for the ubiquitous tumor-specific suppression of KLF9 mRNA and protein. Elucidation of KLF9 and KLF13 in cancer biology is likely to provide new inroads to the understanding of oncogenesis and its prevention and treatments.
Collapse
Affiliation(s)
- Frank A. Simmen
- Department of Physiology & Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (I.A.); (R.C.M.S.)
- The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| | - Iad Alhallak
- Department of Physiology & Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (I.A.); (R.C.M.S.)
| | - Rosalia C. M. Simmen
- Department of Physiology & Cell Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA; (I.A.); (R.C.M.S.)
- The Winthrop P. Rockefeller Cancer Institute, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
| |
Collapse
|
5
|
Yang Y, Zhu B, Ning Z, Wang X, Li Z, Zhang C, Wen L. Circ_0058063 regulates cell vitality and proliferation in oesophageal squamous-cell carcinomas. J Biochem Mol Toxicol 2023; 37:e23470. [PMID: 37477183 DOI: 10.1002/jbt.23470] [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: 07/31/2022] [Revised: 07/03/2023] [Accepted: 07/08/2023] [Indexed: 07/22/2023]
Abstract
Oesophageal squamous-cell carcinoma (ESCC) is a malignant tumor of the digestive system with a poor prognosis. Recent studies have shown the promoting effect of hsa_circ_0058063 (circ_0058063) on ESCC, but the potential regulatory mechanisms of circ_0058063 in ESCC remain largely unclear. The levels of circ_0058063, microRNA-4319 (miR-4319) and mRNA of thrombospondin-1 (THBS1) were indicated by quantitative real-time polymerase chain reaction in ESCC tissues and cells. Meanwhile, the level of THBS1 was quantified by western blot analysis. In addition, the cell functions were examined by CCK8 assay, Edu assay, flow cytometry assay and transwell assay. Furthermore, the interplay between miR-4319 and circ_0058063 or THBS1 was detected by dual-luciferase reporter assay. Finally, an in vivo experiment was implemented to confirm the effect of circ_0058063. The level of circ_0058063 and THBS1 were increased, and the miR-4319 level was decreased in ESCC tissues in contrast to that in normal tissues and cells. For functional analysis, circ_0058063 deficiency inhibited cell vitality, cell proliferation, migration and invasion in ESCC cells, whereas promoted cell apoptosis. Moreover, miR-4319 was confirmed to repress the progression of ESCC cells by suppressing THBS1. In mechanism, circ_0058063 acted as a miR-4319 sponge to regulate the level of THBS1. Besides, circ_0058063 knockdown also attenuated tumour growth in vivo. Circ_0058063 facilitates the development of ESCC through increasing THBS1 expression by regulating miR-4319, which also offered an underlying targeted therapy for ESCC treatment.
Collapse
Affiliation(s)
- Yixuan Yang
- Department of Health Care, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Bing Zhu
- Department of Thoracic Surgery, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, Hubei, China
| | - Zhaofeng Ning
- Department of Radiotherapy, Tai'an Tumor Hospital, Tai'an, Shandong, China
| | - Xiaodong Wang
- Department of Cardiothoracic Surgery, Air Force Hospital in Western War Zone, Chengdu, Sichuan, China
| | - Zhaoxia Li
- Department of Oncology, PLA Rocket Force Characteristic Medical Center, Beijing, China
| | - Chunxia Zhang
- Department of Gastroenterology, Inner Mongolia Forestry General Hospital, Yakeshi, Inner Mongolia, China
| | - Linchun Wen
- Department of Oncology, Nanjing Drum Tower Hospital Group Suqian Hospital, The Affiliated Suqian Hospital of Xuzhou Medical University, Suqian, Jiangsu, China
| |
Collapse
|
6
|
Li J, Zhang Y, Dong PY, Yang GM, Gurunathan S. A comprehensive review on the composition, biogenesis, purification, and multifunctional role of exosome as delivery vehicles for cancer therapy. Biomed Pharmacother 2023; 165:115087. [PMID: 37392659 DOI: 10.1016/j.biopha.2023.115087] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/24/2023] [Accepted: 06/26/2023] [Indexed: 07/03/2023] Open
Abstract
All forms of life produce nanosized extracellular vesicles called exosomes, which are enclosed in lipid bilayer membranes. Exosomes engage in cell-to-cell communication and participate in a variety of physiological and pathological processes. Exosomes function via their bioactive components, which are delivered to target cells in the form of proteins, nucleic acids, and lipids. Exosomes function as drug delivery vehicles due to their unique properties of innate stability, low immunogenicity, biocompatibility, biodistribution, accumulation in desired tissues, low toxicity in normal tissues, and the stimulation of anti-cancer immune responses, and penetration capacity into distance organs. Exosomes mediate cellular communications by delivering various bioactive molecules including oncogenes, oncomiRs, proteins, specific DNA, messenger RNA (mRNA), microRNA (miRNA), small interfering RNA (siRNA), and circular RNA (circRNA). These bioactive substances can be transferred to change the transcriptome of target cells and influence tumor-related signaling pathways. After considering all of the available literature, in this review we discuss the biogenesis, composition, production, and purification of exosomes. We briefly review exosome isolation and purification techniques. We explore great-length exosomes as a mechanism for delivering a variety of substances, including proteins, nucleic acids, small chemicals, and chemotherapeutic drugs. We also talk about the benefits and drawbacks of exosomes. This review concludes with a discussion future perspective and challenges. We hope that this review will provide us a better understanding of the current state of nanomedicine and exosome applications in biomedicine.
Collapse
Affiliation(s)
- Jian Li
- Fujian Key Laboratory of Traditional Chinese Veterinary Medicine and Animal Health, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Ye Zhang
- Advanced Medical Research Institute, Shandong University, Jinan, Shandong 250014, China
| | - Pei-Yu Dong
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Guo-Ming Yang
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao 266109, China
| | - Sangiliyandi Gurunathan
- Department of Biotechnology, Rathinam College of Arts and Science, Pollachi Road, Eachanari, Coimbatore, Tamil Nadu 641021, India.
| |
Collapse
|
7
|
Kong Y, Zhan Y, Chen D, Deng X, Liu X, Xu T, Wang X. Unique microRNA expression profiles in plasmic exosomes from intrahepatic cholestasis of pregnancy. BMC Pregnancy Childbirth 2023; 23:147. [PMID: 36882772 PMCID: PMC9990296 DOI: 10.1186/s12884-023-05456-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 02/20/2023] [Indexed: 03/09/2023] Open
Abstract
BACKGROUND Intrahepatic cholestasis of pregnancy (ICP) is strongly associated with an increased risk of adverse perinatal outcomes. Total bile acid (TBA) levels in the late second or third trimester are a major factor in the diagnosis. Here, we sought to establish the miRNA expression profile of plasm exosomes of ICP and identify possible biomarkers for the diagnosis of ICP. METHODS This case-control study involved 14 ICP patients as the experimental group and 14 healthy pregnant women as the control group. Electron microscopy was used to observe the presence of exosomes in plasma. Nanosight and Western blotting of CD63 was used to assess exosome quality. Among them, three ICP patients and three controls were used for isolation plasmic exosome and preliminary miRNA array analysis. The Agilent miRNA array was utilized to dynamically monitor the miRNA expression in plasmic exosomes of included patients in the first trimester(T1), second trimester (T2), third trimester (T3), and delivery (T4). Then, Quantitative real-time Polymerase chain reaction was used to identify and validate differentially expressed miRNAs in plasma-derived exosomes. RESULTS The expression levels of hsa-miR-940, hsa-miR-636, and hsa-miR-767-3p in plasma-derived exosomes of ICP patients were significantly higher than those of healthy pregnant women. Besides, these three miRNAs were also significantly up-regulated at the plasma, placental, and cellular levels (P < 0.05). The diagnostic accuracy of hsa-miR-940, hsa-miR-636, and hsa-miR-767-3p was further evaluated by the ROC curve, the area under the curve (AUC) values for each were 0.7591, 0.7727, and 0.8955, respectively. CONCLUSIONS We identified three differentially expressed miRNAs in the plasma exosomes of ICP patients. Hence, hsa-miR-940, hsa-miR-636, and hsa-miR-767-3p may be potential biomarkers for enhancing the diagnosis and prognosis of ICP.
Collapse
Affiliation(s)
- Yao Kong
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China
| | - Yongchi Zhan
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China
| | - Daijuan Chen
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China
| | - Xixi Deng
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China
| | - Xinghui Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China.,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China
| | - Tingting Xu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China. .,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China.
| | - Xiaodong Wang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan province, China. .,Key Laboratory of Birth Defects and Related Diseases of Women and Children (Sichuan University), Ministry of Education, Sichuan, 610041, China.
| |
Collapse
|
8
|
Tang Y, Li K, Hu B, Cai Z, Li J, Tao H, Cao J. Fatty acid binding protein 5 promotes the proliferation, migration, and invasion of hepatocellular carcinoma cells by degradation of Krüppel-like factor 9 mediated by miR-889-5p via cAMP-response element binding protein. Cancer Biol Ther 2022; 23:424-438. [PMID: 35816613 PMCID: PMC9275499 DOI: 10.1080/15384047.2022.2094670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Mounting evidence has demonstrated that fatty acid binding protein 5 (FABP5) is commonly upregulated in many human malignancies. However, the mechanisms explaining the involvement of FABP5 in hepatocellular carcinoma (HCC) remain unclear. In this study, we demonstrated the involvement of FABP5 and its downstream signaling molecules in HCC progression. We first confirmed that FABP5 expression was upregulated in HCC. Additionally, FABP5 promoted HCC cells proliferation, migration, and invasion. Mechanistic investigation showed that FABP5 could improve cAMP-response element binding protein (CREB) phosphorylation. Meanwhile, CREB, as a transcription factor, upregulated the miR-889-5p expression by binding to the miR-889-5p promoter region. Consequently, miR-889-5p led to downregulation of Krüppel-like factor 9 (KLF9) by binding to the 3ʹ-UTR of the KLF9 mRNA, potentiating the PI3K/AKT signaling pathway and promoting the proliferation, migration, and invasion of HCC cells. Our findings have identified a FABP5/CREB/miR-889-5p/KLF9 axis for HCC progression, and we postulate that blocking this key signaling pathway may represent a promising strategy for HCC treatment.
Collapse
Affiliation(s)
- Yanping Tang
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Kezhi Li
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Bangli Hu
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Zhengmin Cai
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Jilin Li
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Hao Tao
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China
| | - Ji Cao
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, Guangxi, China.,Key Laboratory of Early Prevention and Treatment for Regional High Frequency Tumor (Guangxi Medical University), Ministry of Education, Nanning, Guangxi, China
| |
Collapse
|
9
|
Xu XH, Sun JM, Chen XF, Zeng XY, Zhou HZ. MicroRNA-494-3p facilitates the progression of bladder cancer by mediating the KLF9/RGS2 axis. Kaohsiung J Med Sci 2022; 38:1070-1079. [PMID: 36098468 DOI: 10.1002/kjm2.12588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 07/14/2022] [Accepted: 07/31/2022] [Indexed: 11/07/2022] Open
Abstract
Bladder cancer (BC) is a familiar malignancy with high morbidity and mortality. The effect of treatment is unsatisfactory after the metastasis and invasion of BC. Hence, more studies should be carried out to explore the metastasis of BC. RT-qPCR or/and western blot was conducted to evaluate miR-494-3p, KLF9, and RGS2 expression. Cell proliferation and invasion were estimated by MTT assay and transwell assay, respectively. Cell migration was tested by wound healing assay and transwell assay. Dual-luciferase reporter gene assay was employed to validate the interplay between miR-494-3p and KLF9 mRNA. The interaction between KLF9 and RGS2 promoter was verified using dual-luciferase reporter gene assay and chromatin immunoprecipitation (ChIP) assay. miR-494-3p expression was upregulated, whereas KLF9 and RGS2 were downregulated in BC cells. miR-494-3p inhibition was competent to limit the growth of BC cells. KLF9 knockdown abolished the miR-494-3p depletion-mediated inhibitory growth of BC cells. Mechanistically, we found that KLF9 was a downstream gene of miR-494-3p and could bind to the promoter region of RGS2 to promote the expression of RGS2. Moreover, RGS2 knockdown abrogated the suppressive effects of miR-494-3p knockdown on the proliferation, migration, and invasion of BC cells. Notably, miR-494-3p inhibition obstructed the tumor growth in nude mice. miR-494-3p silencing inhibited the progression of BC by regulating the KLF9/RGS2 axis in vitro and in vivo, which laid the foundation for experiments of miR-494-3p in BC and provided therapeutic targets for BC.
Collapse
Affiliation(s)
- Xu-Hong Xu
- Department of Urology, The First People's Hospital of Chenzhou (The Affiliated Chenzhou Hospital, Hengyang Medical School, University of South China), Chenzhou, Hunan Province, China
| | - Jian-Ming Sun
- Department of Urology, The First People's Hospital of Chenzhou (The Affiliated Chenzhou Hospital, Hengyang Medical School, University of South China), Chenzhou, Hunan Province, China
| | - Xiao-Feng Chen
- Department of Urology, The First People's Hospital of Chenzhou (The Affiliated Chenzhou Hospital, Hengyang Medical School, University of South China), Chenzhou, Hunan Province, China
| | - Xiang-Yang Zeng
- Department of Urology, The First People's Hospital of Chenzhou (The Affiliated Chenzhou Hospital, Hengyang Medical School, University of South China), Chenzhou, Hunan Province, China
| | - Hai-Zhi Zhou
- Department of 3rd Oncology, The First People's Hospital of Chenzhou, Chenzhou, Hunan Province, China
| |
Collapse
|
10
|
Circ_0005699 participates in ox-LDL-induced human umbilical vein endothelial cell injury via targeting the miR-636/TLR4/NF-κB pathway. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
11
|
Jiang J, Ge H, Yang J, Qiao Y, Xu X, Geng Y. CircRNA protein tyrosine phosphatase receptor type a suppresses proliferation and induces apoptosis of lung adenocarcinoma cells via regulation of microRNA-582-3p. Bioengineered 2022; 13:12182-12192. [PMID: 35549985 PMCID: PMC9276004 DOI: 10.1080/21655979.2022.2073319] [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
Circular RNAs (circRNAs) are associated with cancer progression. The present study aimed to examine the function of circRNA protein tyrosine phosphatase receptor type A (circRNA_PTPRA) in lung cancer cells and elucidate the underlying molecular mechanisms. The levels of circRNA_PTPRA and microRNA (miRNA/miR)-582-3p were measured in lung cancer tissue and cells using reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell proliferation and apoptosis were evaluated using an 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay and flow cytometry, respectively. The expression of cyclin D1, caspase-3, and cleaved caspase-3 was assessed via western blotting. The sites of circRNA_PTPRA/miR-582-3p interaction were identified using StarBase, and validated using a dual-luciferase reporter assay. We observed that circRNA_PTPRA levels were remarkably decreased, and miR-582-3p expression was up-regulated in lung cancer tissues and cells. circRNA_PTPRA directly interacts with miR-582-3p and downregulates miR-582-3p expression in lung cancer cells. Moreover, an miR-582-3p inhibitor decreased lung cancer cell proliferation and promoted apoptosis. The overexpression of circRNA_PTPRA decreased cell proliferation and increased apoptotic cell numbers, whereas miR-582-3p overexpression reversed these effects. These findings demonstrate that the up-regulation of circRNA_PTPRA significantly reduces lung cancer cell proliferation and induces apoptosis by regulating miR-582-3p expression.
Collapse
Affiliation(s)
- Jixin Jiang
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Hui Ge
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Jie Yang
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yunfei Qiao
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Xingxiang Xu
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| | - Yanming Geng
- Department of Respiratory and Critical Care Medicine, Northern Jiangsu People's Hospital, Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
| |
Collapse
|
12
|
Fang R, Cao X, Zhu Y, Chen Q. Hsa_circ_0037128 aggravates high glucose-induced podocytes injury in diabetic nephropathy through mediating miR-31-5p/KLF9. Autoimmunity 2022; 55:254-263. [PMID: 35285770 DOI: 10.1080/08916934.2022.2037128] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
BACKGROUND Circular RNA is a key regulator involved in the progression of many human diseases including diabetic nephropathy (DN). However, the role and mechanism of hsa_circ_0037128 in the occurrence and development of DN remains to be explored. METHODS High glucose (HG)-induced podocytes were used to construct in vitro DN models. The expression of hsa_circ_0037128, microRNA (miR)-31-5p, and Kruppel-like factor 9 (KLF9) was determined using quantitative real-time polymerase chain reaction. The viability and apoptosis of podocytes was measured using cell counting kit 8 assay and flow cytometry. Western blot analysis was performed to examine the protein levels of apoptosis markers and KLF9 in podocytes. Inflammation factors were detected by ELISA assay, and oxidative stress markers were assessed by corresponding Assay Kits. In addition, the interaction between miR-31-5p and hsa_circ_0037128 or KLF9 was verified using dual-luciferase reporter assay and RIP assay. RESULTS Our data suggested that hsa_circ_0037128 was highly expressed in DN patients and HG-induced podocytes. In HG-induced podocytes, hsa_circ_0037128 knockdown could alleviate HG-induced podocytes injury. In the term of mechanism, hsa_circ_0037128 could sponge miR-31-5p to upregulate KLF9. MiR-31-5p inhibitor could reverse the negative regulation of hsa_circ_0037128 silencing on HG-induced podocytes injury. Also, miR-31-5p relieved HG-induced podocytes injury, and this effect also could be reversed by KLF9 overexpression. CONCLUSION In summary, our data showed that hsa_circ_0037128 could promote HG-induced podocytes injury via regulating miR-31-5p/KLF9 axis, showing that hsa_circ_0037128 might be a target for DN treatment.
Collapse
Affiliation(s)
- Rong Fang
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Xiangchang Cao
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Yaping Zhu
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Qiming Chen
- Department of Hand Foot Surgery, Huizhou Central People's Hospital, Huizhou, China
| |
Collapse
|
13
|
Li T, Xu Q, Wei Y, Lin R, Hong Z, Zeng R, Hu W, Wu X. Overexpression of miRNA-93-5p Promotes Proliferation and Migration of Bladder Urothelial Carcinoma via Inhibition of KLF9. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:8911343. [PMID: 35495878 PMCID: PMC9042641 DOI: 10.1155/2022/8911343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/17/2022] [Accepted: 02/04/2022] [Indexed: 11/25/2022]
Abstract
We focused on studying the effects of a key miRNA-mRNA axis in bladder urothelial carcinoma (BUC). Firstly, miRNAs and mRNAs differentially expressed in BUC were analyzed. Clinical information in the TCGA database was used for survival analysis, and the regulator of miRNA-93-5p was predicted. miRNA-93-5p and KLF9 mRNA expression were detected by qRT-PCR. Protein level detection and targeting measurement were, respectively, achieved by western blot and dual-luciferase approaches. The proliferative, invasive, and migratory abilities were tested through CCK-8, Transwell, and wound healing methods. Cell apoptosis in each group was detected through flow cytometry. As discovered, miRNA-93-5p level was markedly high in BUC cells while KLF9 expression was remarkably low. miRNA-93-5p overexpression promoted BUC cell abilities. Besides, miRNA-93-5p inhibited KLF9 expression. Furthermore, KLF9 overexpression dramatically attenuated such promotion on cancer cell abilities. On the whole, miRNA-93-5p/KLF9 axis facilitated BUC progression, offering a new potential target for BUC patients.
Collapse
Affiliation(s)
- Tao Li
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Qingjiang Xu
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Yongbao Wei
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Rongcheng Lin
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Zhiwei Hong
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Rong Zeng
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Weilie Hu
- Department of Urology, Guangdong Hydropower Hospital, Guangzhou 511340, China
| | - Xiang Wu
- Provincial Clinical Medical College of Fujian Medical University, Fuzhou 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou 350001, China
| |
Collapse
|
14
|
Guo C, Wang H, Jiang H, Qiao L, Wang X. Circ_0011292 Enhances Paclitaxel Resistance in Non-Small Cell Lung Cancer by Regulating miR-379-5p/TRIM65 Axis. Cancer Biother Radiopharm 2022; 37:84-95. [PMID: 32833503 DOI: 10.1089/cbr.2019.3546] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: Non-small cell lung cancer (NSCLC) is the most prevalent cancer in the world. Chemotherapy resistance is a major obstacle to NSCLC therapy. This study explored the role and molecular mechanism of circular RNA 0011292 (circ_0011292) in tumorigenesis and chemoresistance of NSCLC. Methods: The levels of circ_0011292, miR-379-5p, and tripartite motif-containing protein 65 (TRIM65) were measured by quantitative real-time polymerase chain reaction or Western blot assay. Cell proliferation was assessed by Cell Counting Kit-8 (CCK-8) assay. Cell apoptosis was monitored by flow cytometry. Cell migration and invasion were detected by transwell assay. The levels of apoptosis-related and epithelial-mesenchymal transition-related proteins were examined by Western blot. The half-inhibition concentration (IC50) of paclitaxel (PTX) was evaluated by CCK-8 assay. Xenograft model was established to analyze the effect of circ_0011292 on PTX resistance of NSCLC in vivo. The interaction among circ_0011292, miR-379-5p, and TRIM65 was verified by dual-luciferase reporter assay and RNA immunoprecipitation assay. Results: Circ_0011292 and TRIM65 were upregulated, while miR-379-5p was downregulated in NSCLC tissues and cells. Circ_0011292 knockdown hindered NSCLC progression and enhanced PTX sensitivity of NSCLC. Circ_0011292 silencing reduced PTX resistance in vivo. Besides, miR-379-5p potentiated PTX sensitivity by targeting TRIM65. Also, circ_0011292 increased PTX resistance by sponging miR-379-5p. Conclusion: Circ_0011292 facilitated tumorigenesis and PTX resistance in NSCLC by regulating the miR-379-5p/TRIM65 axis, suggesting that circ_0011292 was a promising therapeutic target for NSCLC chemotherapy.
Collapse
Affiliation(s)
- Chunhong Guo
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| | - Hailiang Wang
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| | - Housen Jiang
- Department of Orthopedic Surgery, Weifang People's Hospital, Weifang, China
| | - Liang Qiao
- Department of Urology, Gaomi People's Hospital, Gaomi, China
| | - Xinli Wang
- Department of Pharmacy Intravenous Admixture Service, Weifang People's Hospital, Weifang, China
| |
Collapse
|
15
|
Ghafouri-Fard S, Najafi S, Hussen BM, Basiri A, Hidayat HJ, Taheri M, Rashnoo F. The Role of Circular RNAs in the Carcinogenesis of Bladder Cancer. Front Oncol 2022; 12:801842. [PMID: 35296022 PMCID: PMC8918517 DOI: 10.3389/fonc.2022.801842] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 01/28/2022] [Indexed: 12/15/2022] Open
Abstract
Circular RNAs (circRNAs) are a group of transcripts with enclosed configurations which can regulate gene expression. These transcripts have important roles in normal development and in the pathogenesis of disorders. Recent evidence has supported involvement of circRNAs in the development of bladder cancer. Several circRNAs such as circ_0058063, hsa-circRNA-403658, circPDSS1, circCASC15, circRNA-MYLK, and circRNA_103809 have been upregulated in bladder cancer samples. On the other hand, hsa_circ_0137606, BCRC-3, circFUT8, hsa_circ_001598, circSLC8A1, hsa_circ_0077837, hsa_circ_0004826, and circACVR2A are among downregulated circRNAs in bladder cancer. Numerous circRNAs have diagnostic or prognostic value in bladder cancer. In this review, we aim to outline the latest findings about the role of circRNAs in bladder cancer and introduce circRNAs for further investigations as therapeutic targets.
Collapse
Affiliation(s)
- Soudeh Ghafouri-Fard
- Department of Medical Genetics, School of Medicine, 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
| | - Bashdar Mahmud Hussen
- Department of Pharmacognosy, College of Pharmacy, Hawler Medical University, Erbil, Iraq
| | - Abbas Basiri
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hazha Jamal Hidayat
- Department of Biology, College of Education, Salahaddin University-Erbil, Erbil, Iraq
| | - Mohammad Taheri
- Institute of Human Genetics, Jena University Hospital, Jena, Germany
- *Correspondence: Mohammad Taheri, ; Fariborz Rashnoo,
| | - Fariborz Rashnoo
- Skull Base Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- *Correspondence: Mohammad Taheri, ; Fariborz Rashnoo,
| |
Collapse
|
16
|
Zhao J, Yan W, Huang W, Li Y. Circ_0010235 facilitates lung cancer development and immune escape by regulating miR-636/PDL1 axis. Thorac Cancer 2022; 13:965-976. [PMID: 35167195 PMCID: PMC8977160 DOI: 10.1111/1759-7714.14338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 01/14/2022] [Accepted: 01/20/2022] [Indexed: 12/26/2022] Open
Abstract
Background Circular RNAs (circRNAs) are a class of important regulators in various human cancers, including lung cancer. Here, we aimed to investigate the role of circ_0010235 in lung cancer. Methods The expression of circ_0010235, microRNA‐636 (miR‐636) and PDL1 was measured by quantitative real‐time PCR (qRT‐PCR). Cell proliferation was evaluated by CCK‐8, colony formation, and 5‐ethynyl‐2′‐deoxyuridine (EdU) assays. Cell apoptosis was detected by flow cytometry. Cell invasion was assessed by transwell assay. All protein levels were determined by western blot assay. In order to detect the roles of circ_0010235 in immune escape, lung cancer cells were cocultured with peripheral blood mononuclear cells (PBMCs) or cytokine‐induced killer (CIK) cells in vitro. The relationship between miR‐636 and circ_0010235 or PDL1 was verified by dual‐luciferase reporter assay and RNA pulldown assay. Immunohistochemistry (IHC) analysis was used to detect Ki67 and programmed death‐ligand 1 (PDL1) expression. A xenograft tumor model was established to verify the function of circ_0010235 in vivo. Results Circ_0010235 was overexpressed in lung cancer. Circ_0010235 knockdown inhibited proliferation, invasion and immune escape and promoted apoptosis of lung cancer cells. MiR‐636 was a target of circ_0010235, and miR‐636 inhibition reversed the effects of circ_0010235 knockdown in lung cancer cells. PDL1 was a direct target of miR‐636, and miR‐636 suppressed the proliferation and invasion and increased apoptosis and antitumor immunity in lung cancer cells by downregulating PDL1. Moreover, circ_0010235 positively regulated PDL1 expression by sponging miR‐636. Additionally, circ_0010235 knockdown hampered tumorigenesis in vivo. Conclusion Circ_0010235 knockdown inhibited lung cancer progression and increased antitumor immunity by regulating the miR‐636/PDL1 axis.
Collapse
Affiliation(s)
- Jixing Zhao
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Wu Yan
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Wencong Huang
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| | - Yongsheng Li
- Department of Thoracic Surgery, Huizhou Central People's Hospital, Huizhou, China
| |
Collapse
|
17
|
Yang Y, Yang N, Jiang J. Exosomal circ_PTPRA inhibits tumorigenesis and promotes radiosensitivity in colorectal cancer by enriching the level of SMAD4 via competitively binding to miR-671-5p. Cytotechnology 2022; 74:51-64. [PMID: 35185285 PMCID: PMC8817021 DOI: 10.1007/s10616-021-00506-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 11/06/2021] [Indexed: 02/03/2023] Open
Abstract
Accumulating evidence supports that exosomal RNAs are crucial in tumor microenvironment and may be used as diagnostic biomarkers for cancers. This study aimed to determine the role of exosomal circular RNA_protein tyrosine phosphatase receptor type A (circ_PTPRA) in colorectal cancer (CRC). The morphology of exosomes was identified by transmission electron microscopy (TEM), and several exosome-specific proteins were quantified by western blot. The expression of circ_PTPRA, miR-671-5p and SMAD family member 4 (SMAD4) was detected using quantitative polymerase chain reaction (qPCR). Cell cycle was assessed using flow cytometry assay. Cell proliferation was assessed by MTT assay. Radiosensitivity was observed according to colony growth and cell apoptosis rate by colony formation assay and flow cytometry assay. The protein levels of proliferation- and apoptosis-related markers and SMAD4 were measured by western blot. The predicted relationship between miR-671-5p and circ_PTPRA or SMAD4 was verified by dual-luciferase reporter assay. Animal study was performed to investigate the role of exosomal circ_PTPRA in vivo. Circ_PTPRA expression was declined in serumal exosomes from CRC patients and CRC cell lines. Exosomal circ_PTPRA induced CRC cell cycle arrest and inhibited cell proliferation. Besides, exosomal circ_PTPRA promoted radiosensitivity of CRC cells, leading to inhibitory colony formation and increased apoptotic rate. In mechanism, circ_PTPRA functioned as a competing endogenous RNA (ceRNA) to increasing SMAD4 level by binding to miR-671-5p. Rescue experiments concluded that circ_PTPRA inhibited CRC growth and radioresistance by decreasing miR-671-5p expression, and miR-671-5p inhibition also inhibited CRC growth and radioresistance by enriching SMAD4 expression. Moreover, exosomal circ_PTPRA blocked tumor growth in vivo. Exosomal circ_PTPRA enhanced CRC cell radiosensitivity and inhibited CRC malignant development partially by regulating the miR-671-5p/SMAD4 pathway, hinting that exosomal circ_PTPRA might be used as a potential predicted and therapeutic target for CRC.
Collapse
Affiliation(s)
- Ying Yang
- grid.410622.30000 0004 1758 2377Department of Radiation Physics Technology, Hunan Cancer Hospital, No. 283, Tongzipo Road, Yuelu District, Changsha, 410013 Hunan China
| | - Nengwen Yang
- grid.410622.30000 0004 1758 2377Department of Head and Neck Surgery, Hunan Cancer Hospital, Changsha, Hunan China
| | - Jun Jiang
- grid.410622.30000 0004 1758 2377Department of Radiation Physics Technology, Hunan Cancer Hospital, No. 283, Tongzipo Road, Yuelu District, Changsha, 410013 Hunan China
| |
Collapse
|
18
|
Yang X, Wei X, Yi C, Yang Y, Fang Z, Dai Y, Guo Y, Song D. Long Noncoding RNA HAND2-AS1 Suppresses Cell Proliferation, Migration, and Invasion of Bladder Cancer via miR-17-5p/ KLF9 Axis. DNA Cell Biol 2022; 41:179-189. [PMID: 35007433 DOI: 10.1089/dna.2021.0637] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Bladder cancer (BC) is the most common type of malignant tumor in the genitourinary system. Through the microarray analysis of clinical samples, long noncoding RNA HAND2-AS1 expression was found to be downregulated in BC tissues. However, the function of HAND2-AS1 on BC and underlying mechanism are unclear. In this study, the correlations of HAND2-AS1 with clinicopathological parameters in BC patients were determined. The gain- and loss-of-function experiments were conducted to examine the role of HAND2-AS1 in malignant behaviors of BC cells in vitro and in vivo. Then, we paid attention to miR-17-5p/KLF9 axis to illustrate the molecular mechanism. Results showed that HAND2-AS1 was downregulated in BC tissues, and its overexpression significantly inhibited cell proliferation, migration, and invasion in vitro, as well as tumor growth in vivo. Knockdown of HAND2-AS1 caused an opposite effect on BC cell malignancies. Furthermore, miR-17-5p was shown to be a direct target of HAND2-AS1, and it reversed the inhibitory effect of HAND2-AS1 on BC malignancies. Also, as a downstream factor of miR-17-5p, KLF9 silencing was demonstrated to mediate the role of miR-17-5p inhibitor in BC cell proliferation and invasion. Thus, it suggests that HAND2-AS1 acts as a suppressor in BC development through miR-17-5p/KLF9 axis.
Collapse
Affiliation(s)
- Xiaoming Yang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Xiaosong Wei
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Chengzhi Yi
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Yang Yang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Zhiwei Fang
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Yuanheng Dai
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Yufeng Guo
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| | - Dongkui Song
- Department of Urology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, P.R. China
| |
Collapse
|
19
|
Wang L, Zeng C, Chen Z, Qi J, Huang S, Liang H, Huang S, Ou Z. Circ_0025039 acts an oncogenic role in the progression of non-small cell lung cancer through miR-636-dependent regulation of CORO1C. Mol Cell Biochem 2022; 477:743-757. [PMID: 35034254 DOI: 10.1007/s11010-021-04320-0] [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: 03/25/2021] [Accepted: 11/29/2021] [Indexed: 11/28/2022]
Abstract
Non-small cell lung cancer remains the leading cause of cancer-related death worldwide. Circular RNA plays vital roles in NSCLC progression. This study is designed to reveal the role of circ_0025039 in NSCLC cell malignancy. The RNA expression of circ_0025039, microRNA-636 (miR-636), and coronin 1C was detected by quantitative real-time polymerase chain reaction. Protein expression was checked by Western blot analysis or immunohistochemistry assay. Cell proliferation, migration, invasion, tube formation ability, sphere formation capacity, and apoptosis were investigated by cell counting kit-8, 5-Ethynyl-29-deoxyuridine, transwell assay, tube formation assay, sphere formation assay, and flow cytometry analysis, respectively. Mouse model assay was conducted to reveal the effect of circ_0025039 silencing on tumor formation in vivo. The interaction between miR-636 and circ_0025039 or CORO1C was identified through dual-luciferase reporter and RNA pull-down assays. The expression of circ_0025039 and CORO1C was significantly increased, while miR-636 was decreased in NSCLC tissues and cells compared with controls. Circ_0025039 depletion repressed NSCLC cell proliferation, migration, invasion, tube-forming capacity, and sphere formation ability, but induced cell apoptosis. The neoplasm formation was repressed after circ_0025039 silencing. Additionally, circ_0025039 acted as a sponge for miR-636, which was found to target CORO1C. Importantly, the contribution of circ_0025039 to NSCLC progression was mediated by miR-636/CORO1C axis. Circ_0025039 silencing repressed NSCLC malignant progression by reducing CORO1C expression through miR-636, showing the possibility of circ_0025039 as a therapeutic target for NSCLC.
Collapse
Affiliation(s)
- Lei Wang
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Cimei Zeng
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Zhongren Chen
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Jianxu Qi
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Sini Huang
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Haimei Liang
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Shiren Huang
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China
| | - Zongxing Ou
- Department of Respiratory and Critical Care Medicine, Affiliated Haikou Hospital of Xiangya Medical College, Central South University, No. 43, Renmin Avenue, Meilan District, Haikou City, Hainan Province, 570208, PR China.
| |
Collapse
|
20
|
Wang Y, Li M, Pan C, Huang H, Hu X, Liu J. Hsa_circ_0007637 Facilitates Nasopharyngeal Carcinoma Progression by Sponging miR-636/TPD52 Axis. Cancer Manag Res 2022; 13:9439-9452. [PMID: 35002322 PMCID: PMC8722538 DOI: 10.2147/cmar.s328207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/06/2021] [Indexed: 12/11/2022] Open
Abstract
Purpose Hsa_circ_0007637 was discovered to be differentially expressed in nasopharyngeal carcinoma (NPC). However, the exact function and mechanism of Hsa_circ_0007637 on NPC have not been studied. This study firstly researched the function and mechanism of Hsa_circ_0007637 on NPC progression. Methods Hsa_circ_0007637, miR-636 and TPD52 expressions in 80 NPC patients were detected by quantitative real-time polymerase chain reaction. Hsa_circ_0007637 effect on NPC cell proliferation, apopticosis, invasion and migration was investigated by cell counting kit-8 assay, flow cytometry, transwell experiment and wound healing assay accordingly. Dual-luciferase reporter gene assay, RNA immunoprecipitation experiment and RNA fluorescence in situ hybridization experiment were performed to identify the binding between Hsa_circ_0007637 and miR-636. Dual-luciferase reporter gene assay and RNA pull down assay were conducted to verify the binding between miR-636 and TPD52. TPD52 protein expression in NPC cells was determined by Western blot. In vivo study was performed using nude mice. Immunohistochemistry was performed to assess TPD52 and Ki67 expression in tissues. Results Hsa_circ_0007637 was overexpressed in NPC tissues and cells. High Hsa_circ_0007637 expression predicted a poor outcome for NPC patients. Hsa_circ_0007637 knockdown decreased proliferation, invasion, migration and increased apoptosis of NPC cells (P < 0.01). Hsa_circ_0007637 could enhance TPD52 expression via sponging miR-636. miR-636 overexpression or TPD52 knockdown weakened the promoting effect of Hsa_circ_0007637 on NPC cells malignant phenotype (P < 0.01). Hsa_circ_0007637 knockdown suppressed NPC cells growth in vivo (P < 0.01). Conclusion Hsa_circ_0007637 facilitates NPC progression by sponging miR-636/TPD52 axis.
Collapse
Affiliation(s)
- Yihong Wang
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Manyi Li
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Chen Pan
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Haiping Huang
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Xiaoqing Hu
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| | - Jisheng Liu
- Department of Otolaryngology, The First Affiliated Hospital of Soochow University, Suzhou, People's Republic of China
| |
Collapse
|
21
|
Hou Z, Chen J, Yang H, Hu X, Yang F. microRNA-26a shuttled by extracellular vesicles secreted from adipose-derived mesenchymal stem cells reduce neuronal damage through KLF9-mediated regulation of TRAF2/KLF2 axis. Adipocyte 2021; 10:378-393. [PMID: 34311651 PMCID: PMC8320674 DOI: 10.1080/21623945.2021.1938829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Extracellular vesicles (EVs) are nano-sized vesicles secreted actively by numeorus cells and have fundamental roles in intercellular communication through shuttling functional RNAs. This study sets out to elucidate the role of microRNA-26a (miR-26a) shuttled by EVs derived from adipose-derived mesenchymal stem cells (ASCs) in neuronal damage. After extraction and identification of ASC-derived EVs (ASC-EVs), mouse cortical neuronal cells were selected to establish an in vivo cerebral ischemia/reperfusion mouse model and an in vitro oxygen glucose deprivation/reperfusion (OGD/RP) cell model. The downstream genes of miR-26a were analyzed. The gain- and loss-of function of miR-26a and KLF9 was performed in mouse and cell models. Neuronal cells were subjected to co-culture with ASC-EVs and biological behaviors were detected by flow cytometry, Motic Images Plus, TTC, TUNEL staining, qRT-PCR and western blot analysis. ASC-EVs protected neuronal cells against neuronal damage following cerebral ischemia/reperfusion, which was related to transfer of miR-26a into neuronal cells. In neuronal cells, miR-26a targeted KLF9. KLF9 could suppress the expression of TRAF2 and KLF2 to facilitate neuronal damage. In vitro and in vivo results showed that miR-26a delivered by ASC-EVs inhibited neuronal damage. In summary, ASC-EVs-derived miR-26a can arrest neuronal damage by disrupting the KLF9-meidated suppression on TRAF2/KLF2 axis.
Collapse
Affiliation(s)
- Zixin Hou
- Department of Anesthesiology, The First Affiliated Hospital of University of South China, Hengyang, P. R. China
| | - Ji Chen
- Department of Endocrinology, The First Affiliated Hospital of University of South China, Hengyang, P. R. China
| | - Huan Yang
- Department of Anesthesiology, The First Affiliated Hospital of University of South China, Hengyang, P. R. China
| | - Xiaoling Hu
- Department of Anesthesiology, The First Affiliated Hospital of University of South China, Hengyang, P. R. China
| | - Fengrui Yang
- Department of Anesthesiology, The First Affiliated Hospital of University of South China, Hengyang, P. R. China
| |
Collapse
|
22
|
Guo WW, Feng MM, Li SF, Wei LH. Circular RNA circ_0023404 serves as a miR-636 sponge to promote malignant behaviors in cervical cancer cells through upregulation of CYP2S1. Kaohsiung J Med Sci 2021; 38:218-229. [PMID: 34825467 DOI: 10.1002/kjm2.12478] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 08/29/2021] [Accepted: 09/26/2021] [Indexed: 01/22/2023] Open
Abstract
Cervical cancer is the most common malignant gynecological tumor. Circular RNA (circRNA) circ_0023404 is reported to be upregulated in cervical cancer cells. This aim is to explore the role and mechanism of circ_0023404 in cervical cancer. circ_0023404, microRNA-636 (miR-636), and cytochrome P450 2S1 (CYP2S1) levels were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Cell proliferation, migration, invasion, and apoptosis were detected by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide (MTT) assay, 5-ethynyl-2'-deoxyuridine (EDU) assay, colony formation assay, transwell assay, and cytometry assay. Protein levels of cyclin D1, matrix metallopeptidase 9 (MMP9), Bcl-2-associated X protein (Bax), and CYP2S1 were examined by western blot assay. The binding relationship between miR-636 and circ_0023404 or CYP2S1 was predicted by Circinteractome or targetscan, and then verified by a dual-luciferase reporter assay and RNA pull-down assay. circ_0023404 and CYP2S1 expression were increased, and miR-636 was decreased in cervical cancer tissues and cells. Moreover, circ_0023404 knockdown could repress proliferation, migration, invasion, and promote apoptosis of cervical cancer cells in vitro. Mechanically, circ_0023404 could regulate CYP2S1 expression by sponging miR-636. circ_0023404 silencing could attenuate the progression of cervical cancer cells partly by targeting the miR-636/CYP2S1 axis, hinting at a promising therapeutic target for cervical cancer.
Collapse
Affiliation(s)
- Wei-Wei Guo
- Department of Gynecology and Obstetrics, Dalian Municipal Women and Children's Medical Center (Group), Dalian, China
| | - Ming-Ming Feng
- Department of Pathology, Dalian Liaoyu Hospital, Dalian, China
| | - Shuang-Feng Li
- Department of Gynecology and Obstetrics, Dalian hospital of Shengjing Hospital Affiliated to China Medical University, Dalian, China
| | - Li-Hui Wei
- Department of Gynecology and Obstetrics, Siping Maternal and Child Health Care Hospital, Siping, China
| |
Collapse
|
23
|
Shen P, Cao X, Sun L, Qian Y, Wu B, Wang X, Shi G, Wang D. KLF9 suppresses cell growth and induces apoptosis via the AR pathway in androgen-dependent prostate cancer cells. Biochem Biophys Rep 2021; 28:101151. [PMID: 34703906 PMCID: PMC8521454 DOI: 10.1016/j.bbrep.2021.101151] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/17/2021] [Accepted: 10/10/2021] [Indexed: 11/07/2022] Open
Abstract
Kruppel-like factors (KLFs) play an important role in many biological processes including cell proliferation, differentiation and development. Our study showed that the level of KLF9 is lower in PCa cell lines compared to a benign prostate cell line; the androgen-independent cell line PC3 expresses significantly lower KLF9 than the androgen-dependent cell line, LNCaP. Forced overexpression of KLF9 suppressed cell growth, colony formation, and induced cell apoptosis in LNCaP cells. We also found that KLF9 expression was induced in response to apoptosis caused by flutamide, and further addition of dihydrotestosterone antagonized the action of flutamide and significantly decreased KLF9 expression. Furthermore, activation of the androgen receptor (AR) was inhibited by the overexpression of KLF9. Our research shows that KLF9 is lower in androgen-independent cell lines than in androgen-dependent cell lines; Overexpression of KLF9 dramatically suppresses the proliferation, anchorage-independent growth, and induces apoptosis in androgen-dependent cells; KLF9 inhibition on prostate cancer cell growth may be acting through the AR pathway. Our results therefore suggest that KLF9 may play a significant role in the transition from androgen-dependent to androgen-independent prostate cancer and is a potential target of prevention and therapy. KLF9 is lower in androgen-independent cell lines than in androgen-dependent cell lines. Overexpression of KLF9 suppresses the proliferation and induces apoptosis in androgen-dependent cells. KLF9 inhibition on androgen-dependent Pca growth may be associated with the inhibition of AR pathway.
Collapse
Affiliation(s)
- Pengliang Shen
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Xiaoming Cao
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Libin Sun
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Yu Qian
- Translational Medicine Research Center, Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Bo Wu
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Xin Wang
- Department of Urology, First Hospital of Shanxi Medical University, Taiyuan, Shanxi, 030001, China
| | - Guowei Shi
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, 200240, China
| | - Dongwen Wang
- First College of Clinical Medicine, Shanxi Medical University, Taiyuan, Shanxi, 030001, China.,National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen, Guangdong, 518116, China
| |
Collapse
|
24
|
Xing J, Jia Z, Xu Y, Chen M, Yang Z, Chen Y, Han Y. KLF9 (Kruppel Like Factor 9) induced PFKFB3 (6-Phosphofructo-2-Kinase/Fructose-2, 6-Biphosphatase 3) downregulation inhibits the proliferation, metastasis and aerobic glycolysis of cutaneous squamous cell carcinoma cells. Bioengineered 2021; 12:7563-7576. [PMID: 34612136 PMCID: PMC8806463 DOI: 10.1080/21655979.2021.1980644] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Cutaneous squamous cell carcinoma (CSCC) is the second most common skin cancer in humans with increasing incidence. In this paper, we focused on the effects of krueppel-like factor 9 (KLF9) on the progression of CSCC cells by binding to PFKFB3. mRNA and protein expressions of KLF9 and PFKFB3 in human HaCaT and CSCC cells were, respectively, examined by RT-qPCR analysis and Western blot. The viability, proliferation, invasion and migration of A431 cells after transfection were analyzed with MTT, clone formation, transwell and wound healing assays. The levels of glucose, lactic acid and ATP in transfected A431 cells were detected by their commercial kits. Ki-67 expression in transfected A431 cells was determined using immunofluorescence analysis and in tumor tissues was analyzed by immunohistochemistry. The levels of migration, EMT and aerobic glycolysis-related proteins were tested with Western blot. The combination of KLF9 and PFKFB3 was confirmed by dual-luciferase reporter assay and ChIP. As a result, PFKFB3 expression was elevated in CSCC cells compared with HaCaT. Knockdown of PFKFB3 restrained the proliferation, metastasis, and aerobic glycolysis of CSCC cells. In addition, KLF9 could bind to PFKFB3. Downregulation of KLF9 crippled the inhibitory effect of knockdown of PFKFB3 on the proliferation, metastasis, and aerobic glycolysis of CSCC cells. In conclusion, PFKFB3 was transcriptionally regulated by KLF9, and PFKFB3 silencing inhibits the proliferation, metastasis, and aerobic glycolysis of cutaneous squamous cell carcinoma cells.
Collapse
Affiliation(s)
- Jiahua Xing
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese Pla General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Ziqi Jia
- Peking Union Medical College, Beijing, China
| | - Yichi Xu
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese Pla General Hospital, Beijing, China
| | - Muzi Chen
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese Pla General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Zheng Yang
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese Pla General Hospital, Beijing, China
| | - Youbai Chen
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese Pla General Hospital, Beijing, China
| | - Yan Han
- Department of Plastic and Reconstructive Surgery, The First Medical Center, Chinese Pla General Hospital, Beijing, China
| |
Collapse
|
25
|
Jin Y, Zhang Y, Luo X. circRNA_PTPRA functions as a sponge of miR-582-3p to regulate hepatocellular carcinoma cell proliferation, migration, invasion and apoptosis. Exp Ther Med 2021; 22:1276. [PMID: 34594413 PMCID: PMC8456459 DOI: 10.3892/etm.2021.10711] [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: 02/01/2021] [Accepted: 06/17/2021] [Indexed: 12/17/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a lethal disease and one of the most common types of cancer. HCC is associated with exponentially increasing morbidity and mortality rates. Accumulating evidence has identified circular RNAs (circRNAs) to be regulators of cancer progression. However, to the best of our knowledge, the potential effect of circRNA protein tyrosine phosphatase receptor type A (circRNA_PTPRA) in HCC and its mechanism remain unknown. The present study aimed to assess the effects and underlying mechanism of circRNA_PTPRA in a HCC Huh-7 cells model. The sites of interaction between circRNA_PTPRA and microRNA (miR)-582-3p were predicted using the StarBase software and verified using dual luciferase reporter and RNA immunoprecipitation (RIP) assays in Huh-7 cells. HCC cell viability, apoptosis, migration and invasion were measured using MTT, flow cytometry and Transwell assays, respectively. The expression levels of circRNA_PTPRA, miR-582-3p, cyclin D1, MMP-9, Bcl-2 and Bax were analyzed using reverse transcription-quantitative PCR and western blotting. The results of the dual luciferase reporter and RIP assays demonstrated that miR-582-3p directly targeted circRNA_PTPRA. Compared with the human normal hepatocyte cell line, THLE-2, the expression levels of circRNA_PTPRA were upregulated, which were found to be inversely correlated with those of miR-582-3p expression in Huh-7 and HCCLM3 cells. miR-582-3p overexpression using mimics suppressed cell proliferation, migration and invasion, whilst downregulating cyclin D1 and MMP-9 expression in Huh-7 cells. In addition, transfection of HCC cells with the miR-582-3p mimic promoted apoptosis by downregulating Bcl-2 expression and upregulating Bax expression in Huh-7 cells. Knocking down circRNA_PTPRA expression using small interfering RNA (siRNA) markedly downregulated circRNA_PTPRA expression levels and upregulated miR-582-3p expression, but was reversed by co-transfection with the miR-582-3p inhibitor. Furthermore, reduced HCC cell proliferation, migration and invasion, increased levels of cell apoptosis, upregulated Bax expression and downregulated cyclin D1, MMP-9 and Bcl-2 expression were all observed after knocking down circRNA_PTPRA. All these effects aforementioned were reversed by co-transfection with the miR-582-3p inhibitor. In conclusion, findings from the present study suggested that circRNA_PTPRA may regulate HCC cell proliferation, invasion, apoptosis and migration by sponging miR-582-3p. This indicates that the circRNA_PTPRA/miR-582-3p axis may represent a potential target for HCC diagnosis and treatment.
Collapse
Affiliation(s)
- Yanlin Jin
- First Ward of General Surgery, Railway Hospital, Shaoguan, Guangdong 512000, P.R. China
| | - Yi Zhang
- Public Health Guidance Section, Hongshan Centre for Diseases Control and Prevention, Wuhan, Hubei 430070, P.R. China
| | - Xiaoming Luo
- Department of Hepatobiliary Gastrointestinal Surgery, Hubei No. 3 People's Hospital of Jianghan University, Wuhan, Hubei 430033, P.R. China
| |
Collapse
|
26
|
Wang Z, Chen X, Liang Q, An Y, Wei M, Shi W. Inhibiting of circ-TLK1 inhibits the progression of glioma through down-regulating PANX1 via targeting miR-17-5p. J Mol Histol 2021; 52:1007-1020. [PMID: 34181173 DOI: 10.1007/s10735-021-09993-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 06/03/2021] [Indexed: 10/21/2022]
Abstract
Glioma remains the most common malignant tumors in the central nervous system and often has poor prognosis. In recent years, it has been gradually revealed that non-coding RNA effects glioma progression. In this study, we aimed to investigate the significance of circular RNA TLK1 (Circ-TLK1) in predicting the survival of glioma patients as well as its role in glioma development via both in-vitro and in-vivo experiments. We found that Circ-TLK1 was conspicuously up-regulated in glioma tissues compared with adjacent normal tissues, and the up-regulated Circ-TLK1 was significantly correlated with glioma patients' larger tumor volume and higher grades. Functionally, Circ-TLK1 over-expression facilitated glioma growth, migration and invasion, inhibited cell apoptosis, and accelerated PANX1/MAPK/ERK expression, while Circ-TLK1 low expression had the opposite effects. In addition, bioinformatics analysis showed that miR-17-5p was a potential target of Circ-TLK1 and targeted at PANX1. Furthermore, through dual luciferase viability assay, Circ-TLK1 acted as a competing endogenous RNA by sponging miR-17-5p, which targeted and inhibited PANX1/MAPK/ERK expression. MiR-17-5p overexpression mitigated glioma progression, which was significantly inhibited with Circ-TLK1 upregulation. In conclusion, this study confirmed a novel axis of Circ-TLK1-miR-17-5p-PANX1 in modulating glioma development, providing more references for glioma diagnosis and targeted therapy.
Collapse
Affiliation(s)
- Zizhang Wang
- Department of Neurosurgery, Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China
| | - Xu Chen
- Department of Internal Medicine 2, Shaanxi Provincial Tumor Hospital, The Affiliated Hospital of Xi'an Jiaotong Univesity, Xi'an, 710061, Shaanxi, China
| | - Qinlong Liang
- Department of Head and Neck Surgery, Shaanxi Provincial Tumor Hospital, The Affiliated Hospital of Xi'an Jiaotong Univesity, Xi'an, 710061, Shaanxi, China
| | - Yuan An
- Department of Head and Neck Surgery, Shaanxi Provincial Tumor Hospital, The Affiliated Hospital of Xi'an Jiaotong Univesity, Xi'an, 710061, Shaanxi, China
| | - Meng Wei
- Dialysis Department of Nephrology Hospital, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China
| | - Wei Shi
- Department of Neurosurgery, Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, Shaanxi, China.
| |
Collapse
|
27
|
The Emerging Functions of Circular RNAs in Bladder Cancer. Cancers (Basel) 2021; 13:cancers13184618. [PMID: 34572845 PMCID: PMC8464819 DOI: 10.3390/cancers13184618] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/10/2021] [Accepted: 09/10/2021] [Indexed: 12/17/2022] Open
Abstract
Simple Summary The role of circular RNAs has made breakthroughs in understanding the mechanisms of tumor development. Bladder cancer has an increasing incidence, high recurrence rate, high metastatic potential, poor prognosis, and susceptibility to chemotherapy resistance. Thus, it is essential to identify molecules related to the tumorigenesis of bladder cancer. In this review, we summarize current knowledge about the expression of circular RNAs in bladder cancer and their implications in vesical carcinogenesis. We further discuss the limitations of existing studies and provide an outlook for future studies in the hopes of better revealing the association between circular RNAs and bladder cancer. Abstract Bladder cancer (BC) is among the top ten most common cancer types worldwide and is a serious threat to human health. Circular RNAs (circRNAs) are a new class of non-coding RNAs generated by covalently closed loops through back-splicing. As an emerging research hotspot, circRNAs have attracted considerable attention due to their high conservation, stability, abundance, and specificity of tissue development. Accumulating evidence has revealed different form of circRNAs are closely related to the malignant phenotype, prognosis and chemotherapy resistance of BC, suggesting that different circRNAs may be promising biomarkers and have therapeutic significance in BC. The intention of this review is to summarize the mechanisms of circRNA-mediated BC progression and their diagnostic and prognostic value as biomarkers, as well as to further explore their roles in chemotherapy resistance.
Collapse
|
28
|
Yang Y, Jiang D, Zhou Z, Xiong H, Yang X, Peng G, Xia W, Wang S, Lei H, Zhao J, Qian Z, Wu S, Pang J. CDK7 blockade suppresses super-enhancer-associated oncogenes in bladder cancer. Cell Oncol (Dordr) 2021; 44:871-887. [PMID: 33905040 DOI: 10.1007/s13402-021-00608-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/08/2021] [Indexed: 11/25/2022] Open
Abstract
PURPOSE Transcriptional addiction plays a pivotal role in maintaining the hallmarks of cancer cells. Thus, targeting super-enhancers (SEs), which modulate the transcriptional activity of oncogenes, has become an attractive strategy for cancer therapy. As yet, however, the molecular mechanisms of this process in bladder cancer (BC) remain to be elucidated. Here, we aimed to provide detailed information regarding the SE landscape in BC and to investigate new potential pharmaceutical targets for BC therapy. METHODS We employed THZ1 as a potent and specific CDK7 inhibitor. In vitro and in vivo studies were carried out to investigate the anticancer and apoptosis-inducing effects of THZ1 on BC cells. Whole-transcriptome sequencing (RNA-seq) and chromatin immunoprecipitation sequencing (ChIP-seq) were performed to investigate the mechanism and function of SE-linked oncogenic transcription in BC cells. RESULTS We found that THZ1 serves as an effective and potent inhibitor with suppressive activity against BC cells. An integrative analysis of THZ1-sensitive and SE-associated oncogenes yielded potential new pharmaceutical targets, including DDIT4, B4GALT5, PSRC1 and MED22. Combination treatment with THZ1 and the DDIT4 inhibitor rapamycin effectively suppressed BC cell growth. In addition, we found that THZ1 and rapamycin sensitized BC cells to conventional chemotherapy. CONCLUSIONS Our data indicate that exploring BC gene regulatory mechanisms associated with SEs through integrating RNA-seq and ChIP-seq data improves our understanding of BC biology and provides a basis for innovative therapies.
Collapse
Affiliation(s)
- Yafei Yang
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Donggen Jiang
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Ziyu Zhou
- Urology Institute of Shenzhen University, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, 518000, China
- Shenzhen Following Precision Medical Research Institute, Luohu Hospital Group, Shenzhen, 518000, China
| | - Haiyun Xiong
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Xiangwei Yang
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Guoyu Peng
- Urology Institute of Shenzhen University, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, 518000, China
- Shenzhen Following Precision Medical Research Institute, Luohu Hospital Group, Shenzhen, 518000, China
| | - Wuchao Xia
- Urology Institute of Shenzhen University, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, 518000, China
- Shenzhen Following Precision Medical Research Institute, Luohu Hospital Group, Shenzhen, 518000, China
| | - Shang Wang
- Urology Institute of Shenzhen University, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, 518000, China
- Shenzhen Following Precision Medical Research Institute, Luohu Hospital Group, Shenzhen, 518000, China
| | - Hanqi Lei
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China
| | - Jing Zhao
- Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Zhirong Qian
- Research Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, Guangdong, 518107, China
| | - Song Wu
- Urology Institute of Shenzhen University, The Third Affiliated Hospital of Shenzhen University, Shenzhen University, Shenzhen, 518000, China.
- Shenzhen Following Precision Medical Research Institute, Luohu Hospital Group, Shenzhen, 518000, China.
| | - Jun Pang
- Department of Urology, Kidney and Urology Center, Pelvic Floor Disorders Center, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518107, China.
| |
Collapse
|
29
|
Li Y, Huo J, He J, Ma X. LncRNA MONC suppresses the malignant phenotype of Endometrial Cancer Stem Cells and Endometrial Carcinoma Cells by regulating the MiR-636/GLCE axis. Cancer Cell Int 2021; 21:331. [PMID: 34193130 PMCID: PMC8243592 DOI: 10.1186/s12935-021-01911-1] [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: 01/27/2021] [Accepted: 04/07/2021] [Indexed: 12/30/2022] Open
Abstract
Background Emerging evidence shows that abnormal expression of long non-coding RNA is involved in the occurrence and development of various tumors. LncRNA MONC is abnormally expressed in head and neck squamous cell carcinoma, lung cancer, colorectal cancer, and acute megakaryocytic leukemia, but the biological function and potential regulatory mechanism of MONC in endometrial cancer stem cells (ECSCs) and endometrial cancer cells (ECCs) have not been studied. In this study, we aimed to explore the tumor suppressive effect and mechanism of MONC in regulating ECSCs and ECCs. Methods We used qRT-PCR to detect the expression of MONC, miR-636 and GLCE in normal human endometrial tissues and endometrial carcinoma (EC) tissues. Luciferase assay was used to verify the binding sites between MONC and miR-636 and between miR-636 and GLCE. Double fluorescence in situ hybridization was used to locate MONC and miR-636 in cells. ECSCs were obtained by flow cytometry sorting assay. Sphere formation assay, CCK-8 assay, transwell invasion assay, cell cycle analysis and apoptosis assay were used to detect the effects of MONC/miR-636/GLCE axis on the malignant biological behavior of ECSCs and ECCs. The effect of MONC on the epithelial-to-mesenchymal transition (EMT) process was detected using western blot. Finally, we conducted in vivo verification through Tumor xenografts in BALB/C nude mice. Results In this study, we found MONC is low expression in endometrial carcinoma (EC) and patients in the MONC high-expression group had a better prognosis. MONC and miR-636 are relatively co-localized in the cytoplasm. MONC directly inhibits the malignant biological behavior of ECSCs and ECCs by directly inhibiting miR-636. Simultaneously, miR-636 may indirectly reduce the expression of MONC. Down-regulation of miR-636 may promote GLCE expression by targeting the 3′-untranslated region (UTR) of the downstream gene GLCE, thereby inhibiting the progression of ECSCs. MONC combined with miR-636 inhibited tumor epithelial-to-mesenchymal transition (EMT) process. In addition, we verified the tumor suppressive effect of MONC in nude mice, miR-636 can rescue the tumor suppressive effect of overexpressing MONC. Conclusions In conclusion, this study showed that MONC inhibits the malignant phenotypes of ECSCs and ECCs by regulating the miR-636/GLCE axis. Thus the MONC/miR-636/GLCE axis may provide novel treatment avenues for human EC. Supplementary Information The online version contains supplementary material available at 10.1186/s12935-021-01911-1.
Collapse
Affiliation(s)
- Yibing Li
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No 39 Huaxiang Road, Tiexi District, Shenyang, 110000, Liaoning, People's Republic of China
| | - Jianing Huo
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No 39 Huaxiang Road, Tiexi District, Shenyang, 110000, Liaoning, People's Republic of China
| | - Junjian He
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No 39 Huaxiang Road, Tiexi District, Shenyang, 110000, Liaoning, People's Republic of China
| | - Xiaoxin Ma
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, No 39 Huaxiang Road, Tiexi District, Shenyang, 110000, Liaoning, People's Republic of China.
| |
Collapse
|
30
|
Xie F, Huang C, Liu F, Zhang H, Xiao X, Sun J, Zhang X, Jiang G. CircPTPRA blocks the recognition of RNA N 6-methyladenosine through interacting with IGF2BP1 to suppress bladder cancer progression. Mol Cancer 2021; 20:68. [PMID: 33853613 PMCID: PMC8045402 DOI: 10.1186/s12943-021-01359-x] [Citation(s) in RCA: 91] [Impact Index Per Article: 30.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 04/06/2021] [Indexed: 12/20/2022] Open
Abstract
Background Circular RNAs (circRNAs) have been found to have significant impacts on bladder cancer (BC) progression through various mechanisms. In this study, we aimed to identify novel circRNAs that regulate the function of IGF2BP1, a key m6A reader, and explore the regulatory mechanisms and clinical significances in BC. Methods Firstly, the clinical role of IGF2BP1 in BC was studied. Then, RNA immunoprecipitation sequencing (RIP-seq) analysis was performed to identify the circRNAs interacted with IGF2BP1 in BC cells. The overall biological roles of IGF2BP1 and the candidate circPTPRA were investigated in both BC cell lines and animal xenograft studies. Subsequently, we evaluated the regulation effects of circPTPRA on IGF2BP1 and screened out its target genes through RNA sequencing. Finally, we explored the underlying molecular mechanisms that circPTPRA might act as a blocker in recognition of m6A. Results We demonstrated that IGF2BP1 was predominantly binded with circPTPRA in the cytoplasm in BC cells. Ectopic expression of circPTPRA abolished the promotion of cell proliferation, migration and invasion of BC cells induced by IGF2BP1. Importantly, circPTPRA downregulated IGF2BP1-regulation of MYC and FSCN1 expression via interacting with IGF2BP1. Moreover, the recognition of m6A-modified RNAs mediated by IGF2BP1 was partly disturbed by circPTPRA through its interaction with KH domains of IGF2BP1. Conclusions This study identifies exonic circular circPTPRA as a new tumor suppressor that inhibits cancer progression through endogenous blocking the recognition of IGF2BP1 to m6A-modified RNAs, indicating that circPTPRA may serve as an exploitable therapeutic target for patients with BC. Supplementary Information The online version contains supplementary material available at 10.1186/s12943-021-01359-x.
Collapse
Affiliation(s)
- Fei Xie
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.,Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, 266013, China
| | - Chao Huang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Feng Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Hui Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xingyuan Xiao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Jiayin Sun
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Xiaoping Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| | - Guosong Jiang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| |
Collapse
|
31
|
Yang L, Zou X, Zou J, Zhang G. Functions of circular RNAs in bladder, prostate and renal cell cancer (Review). Mol Med Rep 2021; 23:307. [PMID: 33649838 PMCID: PMC7974260 DOI: 10.3892/mmr.2021.11946] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 02/02/2021] [Indexed: 12/24/2022] Open
Abstract
Circular RNAs (circRNAs) are a class of non-coding RNAs formed by covalently closed loops through back-splicing and exon-skipping. circRNAs have been confirmed to play a vital role in various biological functions, acting as microRNA sponges and reservoirs, as well as combining with RNA-binding proteins during the progression of multiple cancer types. Therefore, the present review evaluated recent research articles in PubMed that were published between November 2017 and September 2020. Key word search strings included: ‘Circular RNA (circRNA) AND bladder cancer (BC)’, ‘circular RNA (circRNA) AND prostate cancer (PCa)’ and ‘circular RNA (circRNA) AND renal cell cancer (RCC)’. In total, >58 circRNAs were found to be implicated in urological cancers, with several of the circRNAs targeting common carcinogenic pathways, such as the AKT, TGF-β, MAPK, VEGF and even metabolic pathways. circRNAs are important modulators of BC, PCa and RCC. circRNAs are functionally implicated in the pathogenesis of these cancer types, and have been found to act as biomarkers for the diagnosis and prognosis of urological cancer. However, to the best of our knowledge, the functions of circRNAs in tumors of the urinary system remain largely unknown and require further research.
Collapse
Affiliation(s)
- Longfei Yang
- First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Xiaofeng Zou
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Junrong Zou
- Institute of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Guoxi Zhang
- Department of Urology, First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| |
Collapse
|
32
|
Ma J, Zhou C, Chen X. miR-636 inhibits EMT, cell proliferation and cell cycle of ovarian cancer by directly targeting transcription factor Gli2 involved in Hedgehog pathway. Cancer Cell Int 2021; 21:64. [PMID: 33472614 PMCID: PMC7819188 DOI: 10.1186/s12935-020-01725-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 12/19/2020] [Indexed: 02/08/2023] Open
Abstract
Background Hedgehog (Hh) signaling pathway, which is essential for cell proliferation and differentiation, is noted to be aberrantly activated in tumor from increasing studies in recent years. MicroRNAs (miRNAs) as an important non-coding RNA in cells have been proven to possess a regulatory role specific to the Hh signaling pathway. Here, in vitro and in vivo cellular/molecular experiments were adopted to clarify the regulatory mechanism linking miR-636 to the Hh signaling pathway in ovarian cancer (OVC). Methods Protein–protein interaction analysis was performed to identify the hub gene in the Hh pathway. TargetScan database was used to predict the potential upstream regulators for Gli2. qRT-PCR was performed to test the expression of miR-636, while Western blot was conducted to detect the expression of proteins related to the Hh pathway and epithelial-mesenchymal transition (EMT). For cell functional experiments, HO-8910PM OVC cell line was used. MTT assay and wound healing assay were used to measure the effect of miR-636 on cell proliferation and migration. Flow cytometry was carried out to examine the effect of miR-636 on cell cycle, and Western blot was used to identify the change in expression of Hh and EMT-related proteins. Dual-luciferase reporter gene assay was implemented to detect the targeting relationship between miR-636 and Gli2. Xenotransplantation models were established for in vivo examination. Results Gli2 was identified as the hub gene of the Hh pathway and it was validated to be regulated by miR-636 based on the data from TargetScan and GEO databases. In vitro experiments discovered that miR-636 was significantly lowly expressed in OVC cell lines, and overexpressing miR-636 significantly inhibited HO-8910PM cell proliferation, migration and induced cell cycle arrest in G0/G1 phase, while the inhibition of miR-636 caused opposite results. Dual-luciferase reporter gene assay revealed that Gli2 was the target gene of miR-636 in OVC. Besides, overexpressed miR-636 decreased protein expression of Gli2, and affected the expression of proteins related to the Hh signaling pathway and EMT. Rescue experiments verified that overexpression of Gli2 reversed the inhibitory effect of miR-636 on HO-8910PM cell proliferation and migration, and attenuated the blocking effect of miR-636 on cell cycle. The xenotransplantation experiment suggested that miR-636 inhibited cell growth of OVC by decreasing Gli2 expression. Besides, overexpressing Gli2 potentiated the EMT process of OVC cells via decreasing E-cadherin protein expression and increasing Vimentin protein expression, and it reversed the inhibitory effect of miR-636 on OVC cell proliferation in vivo. Conclusion miR-636 mediates the activation of the Hh pathway via binding to Gli2, thus inhibiting EMT, suppressing cell proliferation and migration of OVC. Trial registration: The experimental protocol was established, according to the ethical guidelines of the Helsinki Declaration and was approved by the Human Ethics Committee of The Second Affiliated hospital of Zhejiang University School of Medicine (IR2019001235). Written informed consent was obtained from individual or guardian participants.
Collapse
Affiliation(s)
- Jiong Ma
- Department of Gynecology, The Second Affiliated Hospital of Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, China
| | - Chunxia Zhou
- Department of Gynecology, The Second Affiliated Hospital of Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, China
| | - Xuejun Chen
- Department of Gynecology, The Second Affiliated Hospital of Zhejiang University School of Medicine, No.88 Jiefang Road, Hangzhou, 310009, China.
| |
Collapse
|
33
|
Wang X, Li H, Lu Y, Cheng L. Circular RNAs in Human Cancer. Front Oncol 2021; 10:577118. [PMID: 33537235 PMCID: PMC7848167 DOI: 10.3389/fonc.2020.577118] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Accepted: 12/02/2020] [Indexed: 01/17/2023] Open
Abstract
Circular RNAs (circRNAs) are a class of endogenous single-stranded covalently closed RNAs, primarily produced from pre-mRNAs via non-canonical back-splicing. circRNAs are highly conserved, stable, and expressed in tissue- and development-specific pattern. circRNAs play essential roles in physiological process as well as cancer biology. By the advances of deep sequencing and bioinformatics, the number of circRNAs have increased explosively. circRNAs function as miRNA/protein sponge, protein scaffold, protein recruitment, enhancer of protein function, as well as templates for translation involved in the regulation of transcription/splicing, translation, protein degradation, and pri-miRNA processing in human cancers and contributed to the pathogenesis of cancer. Numerous circRNAs may function in diverse manners. In this review, we survey the current understanding of circRNA functions in human cancer including miRNA sponge, circRNA-protein interaction, and circRNA-encoded protein, and summarize available databases for circRNA annotation and functional prediction.
Collapse
Affiliation(s)
| | | | - Yanjun Lu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| | - Liming Cheng
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
34
|
Liang Z, Guo W, Fang S, Zhang Y, Lu L, Xu W, Qian H. CircRNAs: Emerging Bladder Cancer Biomarkers and Targets. Front Oncol 2021; 10:606485. [PMID: 33489913 PMCID: PMC7821354 DOI: 10.3389/fonc.2020.606485] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are newly discovered intriguing RNAs due to the covalently closed loop structure, high stability, tissue specificity, and functional diversity. In recent years, a large number of circRNAs have been identified through high-throughput sequencing technology and bioinformatics methods, the abnormal expression of circRNAs are closely related to many diseases including bladder cancer (BC). CircRNAs have been proven to have several functions, such as acting as a regulator of parental gene transcription, miRNA sponge and interacting with proteins to regulate its expression. In addition, some circRNAs have been identified to encode proteins. CircRNAs have the characteristics of high abundance, high stability, wide distribution in body fluids, tissue specificity, and developmental stage specificity, which determine that circRNAs has great potential to be utilized as biomarkers for BC. Herein, we briefly summarize the biogenesis, functions and roles, and the current research progress of circRNAs in BC with a focus on the potential application for BC diagnosis, treatment, and prognosis.
Collapse
Affiliation(s)
- Zhaofeng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Wenhao Guo
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Shikun Fang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Yue Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Ling Lu
- Women and Children Health Hospital of Zhenjiang, Zhenjiang, Jiangsu, China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Hui Qian
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu, China
| |
Collapse
|
35
|
Yang X, Ye T, Liu H, Lv P, Duan C, Wu X, Jiang K, Lu H, Xia D, Peng E, Chen Z, Tang K, Ye Z. Expression profiles, biological functions and clinical significance of circRNAs in bladder cancer. Mol Cancer 2021; 20:4. [PMID: 33397425 PMCID: PMC7780637 DOI: 10.1186/s12943-020-01300-8] [Citation(s) in RCA: 107] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 12/21/2020] [Indexed: 02/06/2023] Open
Abstract
Circular RNAs (circRNAs), which are single-stranded closed-loop RNA molecules lacking terminal 5′ caps and 3′ poly(A) tails, are attracting increasing scientific attention for their crucial regulatory roles in the occurrence and development of various diseases. With the rapid development of high-throughput sequencing technologies, increasing numbers of differentially expressed circRNAs have been identified in bladder cancer (BCa) via exploration of the expression profiles of BCa and normal tissues and cell lines. CircRNAs are critically involved in BCa biological behaviours, including cell proliferation, tumour growth suppression, cell cycle arrest, apoptosis, invasion, migration, metastasis, angiogenesis, and cisplatin chemoresistance. Most of the studied circRNAs in BCa regulate cancer biological behaviours via miRNA sponging regulatory mechanisms. CircRNAs have been reported to be significantly associated with many clinicopathologic characteristics of BCa, including tumour size, grade, differentiation, and stage; lymph node metastasis; tumour numbers; distant metastasis; invasion; and recurrence. Moreover, circRNA expression levels can be used to predict BCa patients’ survival parameters, such as overall survival (OS), disease-free survival (DFS), and progression-free survival (PFS). The abundance, conservation, stability, specificity and detectability of circRNAs render them potential diagnostic and prognostic biomarkers for BCa. Additionally, circRNAs play crucial regulatory roles upstream of various signalling pathways related to BCa carcinogenesis and progression, reflecting their potential as therapeutic targets for BCa. Herein, we briefly summarize the expression profiles, biological functions and mechanisms of circRNAs and the potential clinical applications of these molecules for BCa diagnosis, prognosis, and targeted therapy.
Collapse
Affiliation(s)
- Xiaoqi Yang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haoran Liu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Peng Lv
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chen Duan
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoliang Wu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kehua Jiang
- Department of Urology, Guizhou Provincial People's Hospital, Guiyang, China
| | - Hongyan Lu
- Department of Urology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ding Xia
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ejun Peng
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhiqiang Chen
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Kun Tang
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
| | - Zhangqun Ye
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
36
|
Wang L, Li H, Qiao Q, Ge Y, Ma L, Wang Q. Circular RNA circSEMA5A promotes bladder cancer progression by upregulating ENO1 and SEMA5A expression. Aging (Albany NY) 2020; 12:21674-21686. [PMID: 33176280 PMCID: PMC7695386 DOI: 10.18632/aging.103971] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 07/30/2020] [Indexed: 12/12/2022]
Abstract
Bladder cancer (BC) is one of the most commonly diagnosed urologic carcinomas, with high recurrence and death rates. Circular RNAs (circRNAs) are a class of noncoding RNAs which are anomalously expressed in cancers and involved in the progression of cancers. In this study, we found that circSEMA5A was upregulated in BC tissues and cell lines. The overexpressed circSEMA5A was correlated with malignant characteristics of BC. In vitro data indicated that circSEMA5A promoted proliferation, suppressed apoptosis, facilitated migration, accelerated invasion, enhanced angiogenesis and promotes glycolysis of BC. Mechanistically, circSEMA5A served as a miRNA sponge for miR-330-5p to upregulates Enolase 1 (ENO1) expression and facilitated the activation of Akt and β-catenin signaling pathways. Then, we showed that circSEMA5A exerted its biological functions partially via miR-330-5p/ENO1 signaling. Moreover, circSEMA5A raised SEMA5A expression by recruiting EIF4A3 to enhance the mRNA stability of SEMA5A, and thereby accelerated BC angiogenesis. To sum up, circSEMA5A is upregulated in BC and facilitates BC progression by mediating miR-330-5p/ENO1 signaling and upregulating SEMA5A expression.
Collapse
Affiliation(s)
- Lei Wang
- Department of Urology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Haoran Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan, China
| | - Qingdong Qiao
- Department of Urology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Yukun Ge
- Department of Urology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Ling Ma
- Department of Urology, Xinxiang Central Hospital, Xinxiang, Henan, China
| | - Qiang Wang
- Department of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| |
Collapse
|
37
|
Cai Z, Li H. Circular RNAs and Bladder Cancer. Onco Targets Ther 2020; 13:9573-9586. [PMID: 33061440 PMCID: PMC7535116 DOI: 10.2147/ott.s268859] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022] Open
Abstract
Bladder cancer (BC) is the most common urinary system malignancy and is a serious threat to human health. Circular RNAs (circRNAs) are members of a newly defined class of noncoding RNAs (ncRNAs) that can regulate gene expression at the transcriptional or posttranscriptional level. Studies have shown that circRNAs are related to the clinicopathological characteristics, prognosis, and chemosensitivity of BC, and basic research has further confirmed that changes in the expression of circRNAs in BC are closely related to various tumor biological functions. CircRNAs promote tumor development by interacting with miRNAs to regulate transcription factors and both classical and nonclassical tumor signaling pathways. The nonclassical signaling pathways are related to cell cycle progression, epithelial–mesenchymal transition (EMT), extracellular matrix maintenance, and tumor stem cell maintenance. In this article, the relationships between circRNAs and the clinical characteristics of BC are reviewed, and the molecular mechanisms by which circRNAs promote tumor development are explored.
Collapse
Affiliation(s)
- Zhonglin Cai
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| | - Hongjun Li
- Department of Urology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, People's Republic of China
| |
Collapse
|
38
|
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.
Collapse
|
39
|
Wang GJ, Yu TY, Li YR, Liu YJ, Deng BB. Circ_0000190 suppresses gastric cancer progression potentially via inhibiting miR-1252/PAK3 pathway. Cancer Cell Int 2020; 20:351. [PMID: 32742198 PMCID: PMC7391524 DOI: 10.1186/s12935-020-01422-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 07/13/2020] [Indexed: 12/20/2022] Open
Abstract
Background Gastric cancer is a serious malignant tumor associated with aberrant circular RNAs (circRNAs) expression. In this study, we aim to investigate the role and the underlying mechanism of circ_0000190, a circRNA in gastric cancer. Methods Circ_0000190 expression in vivo was examined in gastric cancer and adjacent normal tissues by RT-PCR. Circ_0000190 expression in gastric cancer cell lines was detected by FISH and RT-PCR. The role of the circRNA in gastric cancer cells was assessed by the analysis of cell viability, apoptosis, proliferation, cell cycle and migration. The potential effector of circ_0000190 was predicted by computational screen and validated by luciferase reporter assay. Furthermore, Mice model of human gastric cancer was established to observe the underlying mechanisms of circ_0000190. Results Circ_0000190 was down-regulated in gastric cancer tissues and cells, with a major location in cytoplasm. Circ_0000190 inhibited gastric cancer cell viability, proliferation and migration, and induced apoptosis and cell cycle arrest by regulating the expression of capase-3, p27 and cyclin D. In addition, the circRNA was validated as a sponge of miR-1252, which directly targeted PAK3. The effects of circ_0000190 on the cellular processes were blocked by miR-1252 mimics, which could be rescued after further overexpression of PAK3. Conclusions Circ_0000190 suppresses gastric cancer progression potentially via inhibiting miR-1252/PAK3 pathway, employing circ_0000190 might be a promising therapeutic strategy for the treatment of gastric cancer.
Collapse
Affiliation(s)
- Gui-Jun Wang
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121000 China
| | - Tian-Yu Yu
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121000 China
| | - Yan-Rong Li
- Department of Gastroenterology, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121000 China
| | - Yang-Jun Liu
- Department of General Surgery, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, 121000 China
| | - Bei-Bei Deng
- Department of Clinical Laboratory, The First Affiliated Hospital of Jinzhou Medical University, No. 2, Section 5, Renmin Street, Guta District, Jinzhou, 121000 Liaoning China
| |
Collapse
|
40
|
Wang Y, Tong J, Lin H, Ma L, Xu Y. CCHE1 accelerated the initiation of oral squamous cell carcinoma through enhancing PAK2 expression by sponging miR-922. J Oral Pathol Med 2020; 49:636-644. [PMID: 31981240 DOI: 10.1111/jop.12995] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 12/27/2019] [Accepted: 01/20/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is a normal form of mouth cancer, comprising the majority of oral cancers. A large number of long non-coding RNAs (lncRNAs) have been reported due to their oncogenic function in cancers. Recent studies show that lncRNA CCHE1 is an oncogene in a wide range of cancers. Whether CCHE1 accelerates the progression of OSCC is still undiscovered. METHODS The qRT-PCR analysis was used to determine CCHE1, miR-922, and PAK2 expression levels. CCK8 and colony formation assays were applied to evaluate OSCC cell proliferative ability. Transwell assay was performed to investigate the capability of cell migration and invasion. Cell apoptosis was assessed by flow cytometry analysis. The distribution of CCHE1 in OSCC cells was confirmed via subcellular fractionation assay. Luciferase reporter assay was used to verify the connection between miR-922 and CCHE1 or PAK2. RESULTS qRT-PCR analysis identified the upregulation of CCHE1 in OSCC cells. Knockdown of CCHE1 curbed the proliferation, migration, and invasion and hastened the apoptosis in OSCC cell lines. Moreover, it was found that miR-922 could interact with CCHE1. Besides, PAK2 was identified as the target gene of miR-922 and its expression was negatively modulated by miR-922 and positively regulated by CCHE1. Restoration assay manifested that the suppressing influence of CCHE1 depletion on OSCC progression was rescued by amplified PAK2. CONCLUSIONS CCHE1 increases the expression of PAK2 to promote the progression of OSCC by competitively binding to miR-922 in OSCC cells.
Collapse
Affiliation(s)
- Yongliang Wang
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Junjie Tong
- Department of Oral Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Haozhi Lin
- Department of Oral Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Lei Ma
- Department of Prosthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yaoxiang Xu
- Department of Oral Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China.,Dental Digital Medicine & 3D Printing Engineering Laboratory of Qingdao University, Qingdao, China
| |
Collapse
|