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Chang R, Yu H, Li S, Pan J. CircRNA hsa_circ_0003528/miR-215 is considered a potential target for predictive prognosis and therapy for triple-negative breast cancer. Mol Biol Rep 2024; 51:901. [PMID: 39126511 DOI: 10.1007/s11033-024-09808-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Accepted: 07/18/2024] [Indexed: 08/12/2024]
Abstract
BACKGROUND Within the subtypes of breast cancer pathologies, triple-negative breast cancer (TNBC) exhibits the highest degree of malignancy and unfavorable outcome, which has great significance in exploring the molecular mechanisms underlying TNBC. This study especially investigated the expression and function of hsa_circ_0003528 in TNBC. METHODS The expression changes of hsa_circ_0003528 were identified from the GEO database (GSE101123) and validated by RT-qPCR. The clinical significance of hsa_circ_0003528 was evaluated using χ2 tests and Kaplan-Meier curve analysis. Bioinformatic analysis and dual-luciferase reporter assay were used to identify the potential downstream miRNA of hsa_circ_0003528. The cellular experiments were conducted to evaluate the impact of hsa_circ_0003528 or/and miR-215 on TNBC cells. RESULTS The hsa_circ_0003528 was selected from the circRNA profile in breast cancer obtained from the GSE101123 dataset. hsa_circ_0003528 expression levels were increased in breast cancer tissues, especially in TNBC tissues. The elevated expression of hsa_circ_0003528 was negatively associated with TNBC patients' overall survival. Silencing of hsa_circ_0003528 hindered the proliferative potential, migration abilities, and invasive capacities of TNBC cells, while downregulation of miR-215 partially diminished the effects of si-hsa_circ_0003528 on TNBC cells. CONCLUSION hsa_circ_0003528 is upregulated in TNBC and can facilitate aggressive cellular behaviors by regulating miR-215 expression, hinting at its potential as a biomarker and therapeutic target in the treatment of TNBC.
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Affiliation(s)
- Ru Chang
- Department of Oncology, The First Affiliated Hospital of Harbin Medical University, Harbin, 150001, China
| | - Haizhen Yu
- Department of Laboratory, Zhucheng People's Hospital, No. 59, Nanhuan Road, Zhucheng, 262299, China
| | - Shizhen Li
- Department of Laboratory, Zhucheng People's Hospital, No. 59, Nanhuan Road, Zhucheng, 262299, China.
| | - Jianzhen Pan
- Department of Intensive Care Medicine, The Affiliated Cancer Hospital of Xiangya School of Medicine, Hunan Cancer Hospital, Central South University, No.283, Tongzipo Road, Yuelu District, Changsha, 410003, China.
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Ghionescu AV, Sorop A, Dima SO. The pivotal role of EMT-related noncoding RNAs regulatory axes in hepatocellular carcinoma. Front Pharmacol 2023; 14:1270425. [PMID: 37767397 PMCID: PMC10520284 DOI: 10.3389/fphar.2023.1270425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 08/30/2023] [Indexed: 09/29/2023] Open
Abstract
Hepatocellular carcinoma (HCC) remains a major health problem worldwide, being the leading cause of cancer-related deaths, with limited treatment options, especially in its advanced stages. Tumor resistance is closely associated with the activation of the EMT phenomenon and its reversal, being modulated by different molecules, including noncoding RNAs (ncRNAs). Noncoding RNAs have the potential to function as both tumor suppressors and oncogenic molecules, controlling the malignant potential of HCC cells. Basically, these molecules circulate in the tumor microenvironment, encapsulated in exosomes. Their impact on cell biology is more significant than originally expected, which makes related research rather complex. The temporal and spatial expression patterns, precise roles and mechanisms of specific ncRNAs encapsulated in exosomes remain primarily unknown in different stages of the disease. This review aims to highlight the recent advances in ncRNAs related to EMT and classifies the described mechanism as direct and indirect, for a better summarization. Moreover, we provide an overview of current research on the role of ncRNAs in several drug resistance-related pathways, including the emergence of resistance to sorafenib, doxorubicin, cisplatin and paclitaxel therapy. Nevertheless, we comprehensively discuss the underlying regulatory mechanisms of exosomal ncRNAs in EMT-HCC via intercellular communication pathways.
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Affiliation(s)
| | - Andrei Sorop
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, Bucharest, Romania
| | - Simona Olimpia Dima
- Center of Excellence in Translational Medicine, Fundeni Clinical Institute, Bucharest, Romania
- Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, Bucharest, Romania
- Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania
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Wang C, Zhang D, Wang L, Wang W. MicroRNA-455-3p inhibits osteosarcoma progression via HSF1 downregulation. J Orthop Sci 2023; 28:1157-1164. [PMID: 35989156 DOI: 10.1016/j.jos.2022.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/26/2022] [Accepted: 07/16/2022] [Indexed: 11/23/2022]
Abstract
OBJECTIVE This study was conducted to dissect the role and potential mechanism of microRNA (miR)-455-3p on osteosarcoma (OS) development. METHODS miR-455-3p and HSF1 expression in OS tissues were detected by RT-qPCR and western blot. Later, gain- and loss-of-function assays were implemented in OS cells U-2OS and MNNG. The expression of apoptosis-related genes was measured by RT-qPCR and western blot. MTT, Transwell, scratch test, and flow cytometry were utilized to test OS cell viability, invasion, migration, and apoptosis. The targeting relationship between miR-455-3p and HSF1 was assessed with a dual-luciferase reporter gene assay. The transplantation tumor experiment in nude mice was utilized for in vivo confirmation. RESULTS Downregulated miR-455-3p and upregulated HSF1 were displayed in OS tissues and cells. Mechanistically, miR-455-3p negatively targeted HSF1. MiR-455-3p inhibition or HSF1 overexpression increased MNNG and U-2OS cell proliferative, invasive, and migrating capabilities, while diminishing U-2OS cell apoptosis. Moreover, HSF1 overexpression negated the impacts of miR-455-3p upregulation on OS cell proliferative, invasive, migrating, and apoptotic abilities. Likewise, overexpressing miR-455-3p curtailed the growth of transplanted OS tumors through HSF1 repression. CONCLUSION MiR-455-3p inhibits the development of OS cells by downregulating HSF1, highlighting the possibility of miR-455-3p as an innovative indicator of prognosis and a therapeutic target for OS.
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Affiliation(s)
- Chao Wang
- Department of Bone and Joint Surgery, Guang'an People's Hospital, Guang'an, Sichuan 638000, PR China.
| | - Dagang Zhang
- Department of Bone and Joint Surgery, Guang'an People's Hospital, Guang'an, Sichuan 638000, PR China
| | - Leidi Wang
- Department of Bone and Joint Surgery, Guang'an People's Hospital, Guang'an, Sichuan 638000, PR China
| | - Weilin Wang
- Department of Bone and Joint Surgery, Guang'an People's Hospital, Guang'an, Sichuan 638000, PR China
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Wang G, Deng L, Gong K, Zhou P, Peng L, Li C. Hsa_circ_0003528 promotes cell malignant transformation and immune escape via increasing oncogene PDL1 through sponging miR-511-3p in non-small cell lung cancer. ENVIRONMENTAL TOXICOLOGY 2023; 38:1347-1360. [PMID: 36947452 DOI: 10.1002/tox.23768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/11/2023] [Accepted: 02/20/2023] [Indexed: 05/18/2023]
Abstract
BACKGROUND Accumulating evidence suggests that circular RNAs (circRNAs) play important regulatory roles in non-small cell lung cancer (NSCLC). At present, we aimed to explore the regulatory role of has_circ_0003528 (circ_0003528) in NSCLC. METHODS Alterations of circ_0003528 expression in NSCLC samples and cell lines were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Impacts of circ_0003528 on NSCLC cell malignant transformation were analyzed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide (MTT), 5-ethynyl-2'-deoxyuridine (EdU), flow cytometry, transwell invasion, and tube formation assays. Epithelial-mesenchymal transition (EMT)-related markers were detected with western blotting. Pro-inflammatory cytokines were detected by Enzyme-linked immunosorbent assay (ELISA). The regulation mechanism of circ_0003528 was verified by dual-luciferase reporter and RNA pull-down assays. The tumorigenesis role of circ_0003528 was verified by animal experiments. RESULTS Higher levels of circ_0003528 were obtained in NSCLC samples and cell lines, and patients with high circ_0003528 expression had a worse prognosis. Silence of circ_0003528 decreased xenograft growth in mouse models and induced cell apoptosis and repressed cell viability, proliferation, invasion, EMT, angiogenesis, and immune escape in NSCLC cells in vitro. Mechanistically, circ_0003528 controlled programmed cell death ligand 1 (PDL1) expression through interaction with miR-511-3p. The inhibiting impacts of circ_0003528 knockdown on NSCLC cell malignant transformation and immune escape were weakened after miR-511-3p silencing. Moreover, PDL1 overexpression partially counteracted miR-511-3p upregulation-mediated suppression on NSCLC cell malignant transformation and immune escape. CONCLUSIONS Circ_0003528 facilitated NSCLC cell malignant transformation and immune escape through regulation of the miR-511-3p/PDL1 axis, highlighting the oncogenic role of circ_0003528 in NSCLC.
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Affiliation(s)
- Guihua Wang
- Department of Oncology, Changsha Central Hospital Affiliated to South China University, Changsha, China
| | - Liyong Deng
- Department of Oncology, Changsha Central Hospital Affiliated to South China University, Changsha, China
| | - Kuiyu Gong
- Department of Oncology, Changsha Central Hospital Affiliated to South China University, Changsha, China
| | - Peng Zhou
- Department of Oncology, Changsha Central Hospital Affiliated to South China University, Changsha, China
| | - Luogen Peng
- Department of Oncology, Changsha Central Hospital Affiliated to South China University, Changsha, China
| | - Chang Li
- Department of Oncology, Changsha Central Hospital Affiliated to South China University, Changsha, China
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Li N, Chen XJ, Zeng YH, Zeng LP, Hu K, Chen LJ. Silencing of lncRNA CRNDE attenuates nonsmall-cell lung cancer progression by mediating the miR-455-3p/HDAC2 axis. Kaohsiung J Med Sci 2022; 38:749-760. [PMID: 35611803 DOI: 10.1002/kjm2.12558] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 03/23/2022] [Accepted: 04/24/2022] [Indexed: 01/11/2023] Open
Abstract
Nonsmall-cell lung carcinoma (NSCLC) is one of the deadliest malignancies in the world. LncRNAs are confirmed to be involved in the progression of NSCLC. Meanwhile, lncRNA CRNDE is known to be upregulated in NSCLC; however, the mechanism by which CRNDE regulates the tumourigenesis of NSCLC remains unclear. To test the function of CRNDE in NSCLC, cell proliferation, invasion, and migration were investigated by colony formation and Transwell assays, respectively. qPCR and Western blotting were applied to test gene and protein levels. In addition, the relationship among CRNDE, miR-455-3p, and HDAC2 was explored by dual-luciferase and RIP assays. The data revealed that the expression of CRNDE was upregulated in NSCLC tissues, while miR-455-3p was downregulated. CRNDE knockdown inhibited the viability, migration and invasion of NSCLC cells or epidermal growth factor receptor gene (EGFR)-mutant NSCLC cells. Moreover, inhibition of miR-455-3p exhibited the opposite effect. CRNDE bound with miR-455-3p, and HDAC2 was found to be targeted by miR-455-3p. Meanwhile, miR-455-3p downregulation reversed the effect of CRNDE knockdown on NSCLC cell function. Furthermore, miR-455-3p notably inhibited the growth and invasion of NSCLC cells via downregulation of HDAC2. Knockdown of CRNDE attenuated NSCLC progression via modulation of the miR-455-3p/HDAC2 axis. Thus, those findings might provide a novel strategy against NSCLC.
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Affiliation(s)
- Na Li
- Department of Pathology, The Second Affiliated Hospital of Hunan University of Chinese Medicine, Changsha, Hunan Province, China.,Medical College, Hunan University of Medicine, Huaihua, Hunan Province, China.,Department of Pathology, The First Affiliated Hospital of Hunan University of Medicine, Huaihua, Hunan Province, China
| | - Xiao-Juan Chen
- Department of Clinical Laboratory, Hunan Maternal and Child Care Hospital, Changsha, Hunan Province, China
| | - Yun-Hui Zeng
- Medical College, Hunan University of Medicine, Huaihua, Hunan Province, China
| | - Li-Ping Zeng
- Medical College, Hunan University of Medicine, Huaihua, Hunan Province, China
| | - Ke Hu
- Medical College, Hunan University of Medicine, Huaihua, Hunan Province, China
| | - Li-Jun Chen
- Medical College, Hunan University of Medicine, Huaihua, Hunan Province, China
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