1
|
Biyu H, Mengshan L, Yuxin H, Ming Z, Nan W, Lixin G. A miRNA-disease association prediction model based on tree-path global feature extraction and fully connected artificial neural network with multi-head self-attention mechanism. BMC Cancer 2024; 24:683. [PMID: 38840078 PMCID: PMC11151537 DOI: 10.1186/s12885-024-12420-5] [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: 11/18/2023] [Accepted: 05/23/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND MicroRNAs (miRNAs) emerge in various organisms, ranging from viruses to humans, and play crucial regulatory roles within cells, participating in a variety of biological processes. In numerous prediction methods for miRNA-disease associations, the issue of over-dependence on both similarity measurement data and the association matrix still hasn't been improved. In this paper, a miRNA-Disease association prediction model (called TP-MDA) based on tree path global feature extraction and fully connected artificial neural network (FANN) with multi-head self-attention mechanism is proposed. The TP-MDA model utilizes an association tree structure to represent the data relationships, multi-head self-attention mechanism for extracting feature vectors, and fully connected artificial neural network with 5-fold cross-validation for model training. RESULTS The experimental results indicate that the TP-MDA model outperforms the other comparative models, AUC is 0.9714. In the case studies of miRNAs associated with colorectal cancer and lung cancer, among the top 15 miRNAs predicted by the model, 12 in colorectal cancer and 15 in lung cancer were validated respectively, the accuracy is as high as 0.9227. CONCLUSIONS The model proposed in this paper can accurately predict the miRNA-disease association, and can serve as a valuable reference for data mining and association prediction in the fields of life sciences, biology, and disease genetics, among others.
Collapse
Affiliation(s)
- Hou Biyu
- College of Physics and Electronic Information, Gannan Normal University, Ganzhou, Jiangxi, 341000, China
| | - Li Mengshan
- College of Physics and Electronic Information, Gannan Normal University, Ganzhou, Jiangxi, 341000, China.
| | - Hou Yuxin
- College of Computer Science and Engineering, Shanxi Datong University, Datong, Shanxi, 037000, China
| | - Zeng Ming
- College of Physics and Electronic Information, Gannan Normal University, Ganzhou, Jiangxi, 341000, China
| | - Wang Nan
- College of Life Sciences, Jiaying University, Meizhou, Guangdong, 514000, China
| | - Guan Lixin
- College of Physics and Electronic Information, Gannan Normal University, Ganzhou, Jiangxi, 341000, China
| |
Collapse
|
2
|
Yao Z, Song P, Jiao W. Pathogenic role of super-enhancers as potential therapeutic targets in lung cancer. Front Pharmacol 2024; 15:1383580. [PMID: 38681203 PMCID: PMC11047458 DOI: 10.3389/fphar.2024.1383580] [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: 02/07/2024] [Accepted: 04/02/2024] [Indexed: 05/01/2024] Open
Abstract
Lung cancer is still one of the deadliest malignancies today, and most patients with advanced lung cancer pass away from disease progression that is uncontrollable by medications. Super-enhancers (SEs) are large clusters of enhancers in the genome's non-coding sequences that actively trigger transcription. Although SEs have just been identified over the past 10 years, their intricate structure and crucial role in determining cell identity and promoting tumorigenesis and progression are increasingly coming to light. Here, we review the structural composition of SEs, the auto-regulatory circuits, the control mechanisms of downstream genes and pathways, and the characterization of subgroups classified according to SEs in lung cancer. Additionally, we discuss the therapeutic targets, several small-molecule inhibitors, and available treatment options for SEs in lung cancer. Combination therapies have demonstrated considerable advantages in preclinical models, and we anticipate that these drugs will soon enter clinical studies and benefit patients.
Collapse
Affiliation(s)
- Zhiyuan Yao
- Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Peng Song
- Department of Thoracic Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Wenjie Jiao
- Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China
| |
Collapse
|
3
|
Song P, Han R, Yang F. Super enhancer lncRNAs: a novel hallmark in cancer. Cell Commun Signal 2024; 22:207. [PMID: 38566153 PMCID: PMC10986047 DOI: 10.1186/s12964-024-01599-6] [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: 01/22/2024] [Accepted: 03/26/2024] [Indexed: 04/04/2024] Open
Abstract
Super enhancers (SEs) consist of clusters of enhancers, harboring an unusually high density of transcription factors, mediator coactivators and epigenetic modifications. SEs play a crucial role in the maintenance of cancer cell identity and promoting oncogenic transcription. Super enhancer lncRNAs (SE-lncRNAs) refer to either transcript from SEs locus or interact with SEs, whose transcriptional activity is highly dependent on SEs. Moreover, these SE-lncRNAs can interact with their associated enhancer regions in cis and modulate the expression of oncogenes or key signal pathways in cancers. Inhibition of SEs would be a promising therapy for cancer. In this review, we summarize the research of SE-lncRNAs in different kinds of cancers so far and decode the mechanism of SE-lncRNAs in carcinogenesis to provide novel ideas for the cancer therapy.
Collapse
Affiliation(s)
- Ping Song
- Department of Gastroenterology, Affiliated Hangzhou First People's Hospital, Westlake University, Hangzhou, 310006, Zhejiang Province, China
- Key Laboratory of Integrated Traditional Chinese and Western Medicine for Biliary and Pancreatic Diseases of Zhejiang Province, Hangzhou, 310006, China
- Hangzhou Institute of Digestive Diseases, Hangzhou, 310006, China
| | - Rongyan Han
- Department of emergency, Affiliated Hangzhou First People's Hospital, Westlake University, Hangzhou, 310006, Zhejiang Province, China
| | - Fan Yang
- Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province, Department of Hepatobiliary and Pancreatic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, Hangzhou, 310006, Zhejiang Province, China.
| |
Collapse
|
4
|
Lobo-Alves SC, Oliveira LAD, Kretzschmar GC, Valengo AE, Rosati R. Long noncoding RNA expression in acute lymphoblastic leukemia: A systematic review. Crit Rev Oncol Hematol 2024; 196:104290. [PMID: 38341118 DOI: 10.1016/j.critrevonc.2024.104290] [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: 09/01/2023] [Revised: 01/03/2024] [Accepted: 02/05/2024] [Indexed: 02/12/2024] Open
Abstract
Long noncoding RNAs (lncRNAs), as gene expression modulators, are potential players in Acute Lymphoblastic Leukemia (ALL) pathogenesis. We systematically explored current literature on lncRNA expression in ALL to identify lncRNAs consistently reported as differentially expressed (DE) either in ALL versus controls or between ALL subtypes. By comparing articles that provided global expression data for DE lncRNAs in the ETV6::RUNX1-positive ALL subtype, we identified four DE lncRNAs in three independent studies (two versus other subtypes and one versus controls), showing concordant expression of LINC01013, CRNDE and lnc-KLF7-1. Additionally, LINC01503 was consistently downregulated on ALL versus controls. Within RT-qPCR studies, twelve lncRNA were DE in more than one source. Thus, several lncRNAs were supported as DE in ALL by multiple sources, highlighting their potential role as candidate biomarkers or therapeutic targets. Finally, as lncRNA annotation is rapidly expanding, standardization of reporting and nomenclature is urgently needed to improve data verifiability and compilation.
Collapse
Affiliation(s)
- Sara Cristina Lobo-Alves
- Instituto de Pesquisa Pelé Pequeno Príncipe, Av. Silva Jardim, 1632 - Água Verde, Curitiba, PR 80250-060, Brazil; Faculdades Pequeno Príncipe, Av Iguaçu, 333, Rebouças, Curitiba, PR 80230-020, Brazil; National Science and Technology Institute for Children's Cancer Biology and Pediatric Oncology - INCT BioOncoPed, Porto Alegre, RS 90035-003, Brazil.
| | - Liana Alves de Oliveira
- Instituto de Pesquisa Pelé Pequeno Príncipe, Av. Silva Jardim, 1632 - Água Verde, Curitiba, PR 80250-060, Brazil; National Science and Technology Institute for Children's Cancer Biology and Pediatric Oncology - INCT BioOncoPed, Porto Alegre, RS 90035-003, Brazil.
| | - Gabriela Canalli Kretzschmar
- Instituto de Pesquisa Pelé Pequeno Príncipe, Av. Silva Jardim, 1632 - Água Verde, Curitiba, PR 80250-060, Brazil; Faculdades Pequeno Príncipe, Av Iguaçu, 333, Rebouças, Curitiba, PR 80230-020, Brazil; National Science and Technology Institute for Children's Cancer Biology and Pediatric Oncology - INCT BioOncoPed, Porto Alegre, RS 90035-003, Brazil.
| | - Andressa Eloisa Valengo
- Instituto de Pesquisa Pelé Pequeno Príncipe, Av. Silva Jardim, 1632 - Água Verde, Curitiba, PR 80250-060, Brazil; Faculdades Pequeno Príncipe, Av Iguaçu, 333, Rebouças, Curitiba, PR 80230-020, Brazil
| | - Roberto Rosati
- Instituto de Pesquisa Pelé Pequeno Príncipe, Av. Silva Jardim, 1632 - Água Verde, Curitiba, PR 80250-060, Brazil; Faculdades Pequeno Príncipe, Av Iguaçu, 333, Rebouças, Curitiba, PR 80230-020, Brazil; National Science and Technology Institute for Children's Cancer Biology and Pediatric Oncology - INCT BioOncoPed, Porto Alegre, RS 90035-003, Brazil.
| |
Collapse
|
5
|
Cui Y, Wu Y, Zhang M, Zhu Y, Su X, Kong W, Zheng X, Sun G. Identification of prognosis-related lncRNAs and cell validation in lung squamous cell carcinoma based on TCGA data. Front Oncol 2023; 13:1240868. [PMID: 37965447 PMCID: PMC10642190 DOI: 10.3389/fonc.2023.1240868] [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: 06/15/2023] [Accepted: 10/12/2023] [Indexed: 11/16/2023] Open
Abstract
Objective To discern long non-coding RNAs (lncRNAs) with prognostic relevance in the context of lung squamous cell carcinoma (LUSC), we intend to predict target genes by leveraging The Cancer Genome Atlas (TCGA) repository. Subsequently, we aim to investigate the proliferative potential of critical lncRNAs within the LUSC milieu. Methods DESeq2 was employed to identify differentially expressed genes within the TCGA database. Following this, we utilized both univariate and multivariate Cox regression analyses to identify lncRNAs with prognostic relevance. Noteworthy lncRNAs were selected for validation in cell lines. The intracellular localization of these lncRNAs was ascertained through nucleocytoplasmic isolation experiments. Additionally, the impact of these lncRNAs on cellular proliferation, invasion, and migration capabilities was investigated using an Antisense oligonucleotides (ASO) knockdown system. Results Multivariate Cox regression identified a total of 12 candidate genes, consisting of seven downregulated lncRNAs (BRE-AS1, CCL15-CCL14, DNMBP-AS1, LINC00482, LOC100129034, MIR22HG, PRR26) and five upregulated lncRNAs (FAM83A-AS1, LINC00628, LINC00923, LINC01341, LOC100130691). The target genes associated with these lncRNAs exhibit significant enrichment within diverse biological pathways, including metabolic processes, cancer pathways, MAPK signaling, PI3K-Akt signaling, protein binding, cellular components, cellular transformation, and other functional categories. Furthermore, nucleocytoplasmic fractionation experiments demonstrated that LINC00923 and LINC01341 are predominantly localized within the cellular nucleus. Subsequent investigations utilizing CCK-8 assays and colony formation assays revealed that the knockdown of LINC00923 and LINC01341 effectively suppressed the proliferation of H226 and H1703 cells. Additionally, transwell assays showed that knockdown of LINC00923 and LINC01341 significantly attenuated the invasive and migratory capacities of H226 and H1703 cells. Conclusion This study has identified 12 candidate lncRNA associated with prognostic implications, among which LINC00923 and LINC01341 exhibit potential as markers for the prediction of LUSC outcomes.
Collapse
Affiliation(s)
- Yishuang Cui
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Yanan Wu
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Mengshi Zhang
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Yingze Zhu
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Xin Su
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Wenyue Kong
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Xuan Zheng
- School of Public Health, North China University of Science and Technology, Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| | - Guogui Sun
- Department of Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei, China
| |
Collapse
|
6
|
Taghehchian N, Samsami Y, Maharati A, Zangouei AS, Boroumand-Noughabi S, Moghbeli M. Molecular biology of microRNA-342 during tumor progression and invasion. Pathol Res Pract 2023; 248:154672. [PMID: 37413875 DOI: 10.1016/j.prp.2023.154672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 07/02/2023] [Indexed: 07/08/2023]
Abstract
Cancer is considered as one of the main causes of human deaths and health challenges in the world. Various factors are involved in the high death rate of cancer patients, including late diagnosis and drug resistance that result in treatment failure and tumor recurrence. Invasive diagnostic methods are one of the main reasons of late tumor detection in cancer patients. Therefore, it is necessary to investigate the molecular tumor biology to introduce efficient non-invasive markers. MicroRNAs (miRNAs) are involved in regulation of the cellular mechanisms such as cell proliferation, apoptosis, and migration. MiRNAs deregulations have been also frequently shown in different tumor types. Here, we discussed the molecular mechanisms of miR-342 during tumor growth. MiR-342 mainly functions as a tumor suppressor by the regulation of transcription factors and signaling pathways such as WNT, PI3K/AKT, NF-kB, and MAPK. Therefore, miR-342 mimics can be used as a reliable therapeutic strategy to inhibit the tumor cells growth. The present review can also pave the way to introduce the miR-342 as a non-invasive diagnostic/prognostic marker in cancer patients.
Collapse
Affiliation(s)
- Negin Taghehchian
- Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Yalda Samsami
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhosein Maharati
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amir Sadra Zangouei
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Samaneh Boroumand-Noughabi
- Department of Hematology and Blood Bank, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Meysam Moghbeli
- Department of Medical Genetics and Molecular Medicine, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
| |
Collapse
|
7
|
Brown JS. Comparison of Oncogenes, Tumor Suppressors, and MicroRNAs Between Schizophrenia and Glioma: The Balance of Power. Neurosci Biobehav Rev 2023; 151:105206. [PMID: 37178944 DOI: 10.1016/j.neubiorev.2023.105206] [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: 11/29/2022] [Revised: 04/25/2023] [Accepted: 04/30/2023] [Indexed: 05/15/2023]
Abstract
The risk of cancer in schizophrenia has been controversial. Confounders of the issue are cigarette smoking in schizophrenia, and antiproliferative effects of antipsychotic medications. The author has previously suggested comparison of a specific cancer like glioma to schizophrenia might help determine a more accurate relationship between cancer and schizophrenia. To accomplish this goal, the author performed three comparisons of data; the first a comparison of conventional tumor suppressors and oncogenes between schizophrenia and cancer including glioma. This comparison determined schizophrenia has both tumor-suppressive and tumor-promoting characteristics. A second, larger comparison between brain-expressed microRNAs in schizophrenia with their expression in glioma was then performed. This identified a core carcinogenic group of miRNAs in schizophrenia offset by a larger group of tumor-suppressive miRNAs. This proposed "balance of power" between oncogenes and tumor suppressors could cause neuroinflammation. This was assessed by a third comparison between schizophrenia, glioma and inflammation in asbestos-related lung cancer and mesothelioma (ALRCM). This revealed that schizophrenia shares more oncogenic similarity to ALRCM than glioma.
Collapse
|
8
|
Tang J, Li X, Zhao L, Hui J, Ding N. Circ_0006220 Contributes to NSCLC Progression through miR-342-3p/GOT2 Axis. Ann Thorac Cardiovasc Surg 2023; 29:11-22. [PMID: 36575008 PMCID: PMC9939679 DOI: 10.5761/atcs.oa.22-00090] [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: 12/27/2022] Open
Abstract
PURPOSE Dysregulated circular RNAs (circRNAs) have shown crucial modulatory functions in tumorigenesis, containing non-small cell lung cancer (NSCLC). The purpose of this study was to explore the biological functions and regulatory theory of circ_0006220 in NSCLC. METHODS Reverse transcription-quantitative polymerase chain reaction and Western blot assay were conducted to measure RNA and protein expression, respectively. A total of 73 cases of NSCLC tumor samples were collected for expression analysis, and A-549 and NCI-H1299 cell lines were used for functional experiments. Cell proliferation was assessed by cell counting kit-8 assay, colony formation assay, 5-ethynyl-2'-deoxyuridine assay, and flow cytometry. Cell apoptosis, motility, and angiogenesis ability were analyzed by flow cytometry, transwell assays, and capillary-like network formation assay. Dual-luciferase reporter assay and RNA immunoprecipitation assay were conducted to verify the target relationships. RESULTS Circ_0006220 was highly expressed in NSCLC tissues and cell lines. Circ_0006220 silencing inhibited the proliferation, migration, invasion, and angiogenesis but induced the apoptosis of NSCLC cells. Circ_0006220 acted as a microRNA-342-3p (miR-342-3p) sponge, and circ_0006220 knockdown-induced changes on the phenotypes of NSCLC cells were largely overturned by the knockdown of miR-342-3p. miR-342-3p interacted with the 3' untranslated region of glutamic-oxaloacetic transaminase 2 (GOT2), and GOT2 overexpression largely diminished miR-342-3p overexpression-mediated influences in NSCLC cells. Circ_0006220 could up-regulate GOT2 expression by sponging miR-342-3p. CONCLUSION Circ_0006220 promoted the malignant behaviors of NSCLC cells through mediating the miR-342-3p/GOT2 regulation cascade.
Collapse
Affiliation(s)
- Jichun Tang
- Department of Medical of Oncology, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China
| | - Xuan Li
- Department of Medical of Oncology, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China
| | - Lili Zhao
- Department of Medical of Oncology, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China
| | - Jiajun Hui
- Department of Medical of Oncology, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China
| | - Ning Ding
- Department of Medical of Oncology, Wuxi Huishan District People’s Hospital, Wuxi, Jiangsu, China,Corresponding author: Ning Ding. Department of Medical of Oncology, Wuxi Huishan District People’s Hospital, No. 2, North Zhanqian Road, Luoshe Town, Huishan District, Wuxi, Jiangsu 214187, China
| |
Collapse
|
9
|
Wang W, Chang G, Zhuo R, Ye C. Identification of a ferroptosis-related long noncoding RNA signature with a prognostic value in adrenocortical carcinoma. Front Genet 2022; 13:949457. [DOI: 10.3389/fgene.2022.949457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 10/31/2022] [Indexed: 11/17/2022] Open
Abstract
Background: Adrenocortical carcinoma (ACC) is an uncommon endocrine malignancy associated with poor clinical outcome. As a novel form of cell death, ferroptosis is reliant on the accumulation of iron and reactive oxygen species and is involved in the pathogenesis of various tumors, including ACC. Our study aimed to identify and characterize the prognostic ferroptosis-related lncRNA signature (FerRLSig) in ACC.Methods: A regulatory network of ferroptosis-related lncRNAs (FerRLs) and mRNAs was constructed based on The Cancer Genome Atlas (TCGA). Univariate and multivariate Cox regression assays were performed to construct the FerRLSig.Results: Twenty-four FerRLs were identified in the prognostic model, and the high-risk FerRLSig was related to the worse overall survival (OS) in ACC [hazard ratio (HR): 1.936 (1.484–2.526), p < 0.001]. The area under the curve (AUC) value of the FerRLSig was 0.936 according to the receiver operating characteristic (ROC) analyses, superior to other traditional clinicopathological features, further supported the utility in prognosis prediction of ACC. We further established a prognostic nomogram combining clinical factors with the FerRLSig, which showed favorable efficacy for survival prediction. Next, gene set enrichment analysis (GSEA) revealed that gene sets were involved in many immune regulatory biological processes related to malignancies. T-cell function of type II INF response and the immune checkpoints, including CD40, CD276, IDO2, NRP1, and CD80, were expressed with a significant difference between the low- and high-risk groups.Conclusion: This study offered new insights into the pathogenesis of ACC. The novel FerRLSig could be useful in predicting survival and may provide information of immunological research and treatment for ACC patients.
Collapse
|
10
|
miR-342-3p Inhibits Acute Myeloid Leukemia Progression by Targeting SOX12. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:1275141. [PMID: 36120594 PMCID: PMC9477626 DOI: 10.1155/2022/1275141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/12/2022] [Accepted: 08/20/2022] [Indexed: 11/29/2022]
Abstract
Background It is well known that microRNAs (miRNAs) interfere with the progression of various human malignancies. This article is aimed at exploring the regulating role of miR-342-3p in acute myeloid leukemia (AML) and its mechanism. Methods We used the Gene Expression Omnibus (GEO) database to determine miR-342-3p differential expression patterns in AML patients' plasma and cells as well as healthy individuals' plasma and T cells. Quantitative real-time PCR and Western blotting were performed for plasma and cell miR-342-3p and SRY-related high-mobility-group box (SOX12) expression quantification, and cell counting kit-8 assay and flow cytometry were used for the determination of AML cell growth, cycle, and apoptosis. A dual-luciferase reporter gene assay was further carried out to identify the targeted association between miR-342-3p and SOX12 mRNA 3′UTR after prediction by a bioinformatics website. Pearson's correlation analysis was performed to analyze the connection between miR-342-3p and SOX12 expressions. The LinkedOmics database was utilized to explore the downstream pathways in which SOX12 was enriched. Results Evidently downregulated plasma miR-342-3p and markedly elevated SOX12 were observed in AML patients versus healthy individuals. miR-342-3p mimics suppressed AML cell growth, enhanced apoptosis, and induced G0/G1 phase arrest; conversely, enhanced capacity of AML cells to proliferate, suppressed apoptosis, and accelerated cell cycle were observed after treatment with miR-342-3p inhibitors. SOX12 was confirmed as miR-342-3p's target gene. Overexpressing or knocking down SOX12 reversed miR-342-3p's impacts on AML cell growth, apoptosis, and cycle. Upregulated SOX12 was positively related to DNA replication and RNA polymerase signaling pathways. Conclusion miR-342-3p affects apoptosis of AML cells and their ability to proliferate via targeted regulation of SOX12.
Collapse
|
11
|
Xie Z, Xiang H, Li J, Zhang X, Li W, Tan G. SNHG20 promotes the development of laryngeal squamous cell carcinoma via miR-342-3p/MTDH axis. Heliyon 2022; 8:e10085. [PMID: 36033309 PMCID: PMC9399968 DOI: 10.1016/j.heliyon.2022.e10085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 04/20/2022] [Accepted: 07/21/2022] [Indexed: 11/16/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are important players in laryngeal squamous cell carcinoma (LSCC). However, the function of the long noncoding RNA small nucleolar RNA host gene 20 (SNHG20) in LSCC is hardly known. We therefore analyzed the role of this lncRNA in LSCC. Our data showed that SNHG20 was significantly overexpressed in LSCC cell lines and human LSCC tissue. SNHG20 significantly promoted cell proliferation, migration and invasion of LSCC cells. The actions of SNHG20 are likely mediated by miR-342-3p expression, which results in increased expression of MTDH. Finally, the results of in vivo models confirmed that SNHG20 promotes LSCC progression through modulating miR-342-3p and MTDH expression. Taken together, our study demonstrates that SNHG20/miR-342-3p/MTDH axis participates in LSCC progression.
Collapse
Affiliation(s)
- Zuozhong Xie
- Department of Otolaryngology Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.,Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital, Central South University, Changsha City, Hunan Province, 410013, China
| | - Hong Xiang
- Center for Experimental Medical Research, The Third Xiangya Hospital, Central South University, Changsha City, Hunan Province, 410013, China
| | - Jingkun Li
- Department of Otolaryngology Head and Neck Surgery, The Second Xiangya Hospital, Central South University, Changsha City, Hunan Province, 410013, China
| | - Xiaowei Zhang
- Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital, Central South University, Changsha City, Hunan Province, 410013, China
| | - Wei Li
- Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital, Central South University, Changsha City, Hunan Province, 410013, China
| | - Guolin Tan
- Department of Otolaryngology Head and Neck Surgery, The Third Xiangya Hospital, Central South University, Changsha City, Hunan Province, 410013, China
| |
Collapse
|
12
|
Hong P, Du H, Tong M, Cao Q, Hu D, Ma J, Jin Y, Li Z, Huang W, Tong G. A Novel M7G-Related MicroRNAs Risk Signature Predicts the Prognosis and Tumor Microenvironment of Kidney Renal Clear Cell Carcinoma. Front Genet 2022; 13:922358. [PMID: 35812727 PMCID: PMC9263547 DOI: 10.3389/fgene.2022.922358] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Accepted: 06/07/2022] [Indexed: 12/29/2022] Open
Abstract
Background: M7G modification is extremely vital for the development of many cancers, especially tumor immunity. M7G modification is a novel functional regulator of miRNA, and the researches on m7G-related miRNAs in kidney renal clear cell carcinoma (KIRC) are still insufficient. This research aims to establish a risk signature on the foundation of m7G-associated miRNAs, which can precisely forecast the prognosis of KIRC patients. Methods: Transcriptome data and clinical data used in this study come from The Cancer Genome Atlas database. Our team utilized univariable Cox, Lasso and multivariable Cox analyses to construct a m7G-associated miRNAs risk signature that can forecast the prognosis of KIRC patients. Kaplan-Meier method, time-dependent receiver operating characteristic (ROC) curve, and the independent analysis of risk signatures were employed to verify the predictability and accuracy of the risk signature. Subsequently, based on CIBERSORT, ESTIMATE and ssGSEA algorithms, we speculated the potential impact of the proposed risk signature on tumor immune microenvironment. Ultimately, by virtue of the risk signature and tumor immunity, the hub genes affecting the prognosis of KIRC patients were screened out. Results: Our team established and verified a prognostic signature comprising 7 m7G-associated miRNAs (miR-342-3p, miR-221-3p, miR-222-3p, miR-1277-3p, miR-6718-5p, miR-1251-5p, and miR-486-5p). The results of the Kaplan-Meier survival analysis revealed that the prognosis of KIRC sufferers in the high-risk group was often unsatisfactory. The accuracy of the prediction ability of the risk signature was verified by calculating the area under the ROC curve. Univariate-multivariate Cox analyses further showed that this risk signature could be utilized as an independent prognosis-related biomarker for KIRC sufferers. The results of the immune analysis revealed that remarkable diversities existed in immune status and tumor microenvironment between high-risk and low-risk groups. On the foundation of the proposed risk signature and other clinical factors, a nomogram was established to quantitatively forecast the survival of KIRC sufferers at 1, 3 and 5 years. Conclusion: Based on m7G-related miRNAs, a risk signature was successfully constructed, which could precisely forecast the prognosis of sufferers and guide personalized immunotherapy for KIRC patients.
Collapse
Affiliation(s)
- Peng Hong
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Huifang Du
- Affiliated First Hospital, Nanchang University, Nanchang, China
| | - Ming Tong
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
- *Correspondence: Ming Tong, ; Qingfei Cao,
| | - Qingfei Cao
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
- *Correspondence: Ming Tong, ; Qingfei Cao,
| | - Ding Hu
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Jiaji Ma
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Yanyang Jin
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Zizhi Li
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Weichao Huang
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| | - Guangquan Tong
- Department of Urology, The First Hospital of Jinzhou Medical University, Jinzhou Medical University, Jinzhou, China
| |
Collapse
|
13
|
Wang G, Zheng H, Zhao X, Wang Y, Zeng Y, Du J. The Prognostic Model and Drug Sensitivity of LKB1-Mutant Lung Adenocarcinoma Based on Immune Landscape. Front Mol Biosci 2022; 9:756772. [PMID: 35720127 PMCID: PMC9201220 DOI: 10.3389/fmolb.2022.756772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 04/21/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Lung cancer is the most common cause of cancer-related deaths worldwide. LKB1-mutant lung adenocarcinoma (LUAD) is a unique subtype of this deadly cancer. LKB1 mutations cause functional changes in a variety of cell processes, including immune functions, that affect prognosis. To date, the potential role of immunity in the prognosis of LKB1-mutant LUAD is not well understood.Methods: We systematically analyzed immune-related genes in LUAD samples from The Cancer Genome Atlas (TCGA) database. ESTIMATE and CIBERSORT algorithms were used to explore the immune microenvironment. A prognostic risk model was constructed, and prognostic, immune function, drug sensitivity, and model specificity analyses were performed to identify the effectiveness of the model.Results: Our results showed that LKB1 mutations suppressed immune function in LUAD. A three-gene signature was constructed to stratify patients into two risk groups. The risk score was an independent predictor for overall survival (OS) in multivariate Cox regression analyses [hazard ratio (HR) > 1, p = 0.002]. Receiver operating characteristic (ROC) curve analyses confirmed that the risk score has better performance than clinicopathological characteristics. Functional analysis revealed that the immune status was different between the risk groups. ZM.447439 was an appropriate treatment for the high-risk group of patients. This risk model is only suitable for LKB1-mutant tumors; it performed poorly in LUAD patients with wild-type LKB1.Conclusion: Our findings indicate the potential role of immunity in LKB1-mutant LUAD, providing novel insights into prognosis and guiding effective immunotherapy.
Collapse
Affiliation(s)
- Guanghui Wang
- Institute of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, China
- Department of Thoracic Surgery, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Haotian Zheng
- Institute of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Xiaogang Zhao
- Department of Thoracic Surgery, The Second Hospital of Shandong University, Jinan, China
| | - Yadong Wang
- Institute of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Yukai Zeng
- Institute of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - Jiajun Du
- Institute of Oncology, Shandong Provincial Hospital, Shandong University, Jinan, China
- Department of Thoracic Surgery, Shandong Provincial Hospital, Shandong University, Jinan, China
- *Correspondence: Jiajun Du,
| |
Collapse
|
14
|
Circular RNA circ_0006948 Promotes Esophageal Squamous Cell Carcinoma Progression by Regulating microRNA-3612/LASP1 Axis. Dig Dis Sci 2022; 67:2158-2172. [PMID: 34024023 DOI: 10.1007/s10620-021-07057-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 05/11/2021] [Indexed: 01/14/2023]
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is the most prevalent malignancy worldwide. Circular RNAs (circRNAs) circ_0006948 is reported to be upregulated in ESCC cells. AIMS This study is designed to explore the role and mechanism of circ_0006948 in ESCC progression. METHODS Circ_0006948, linear FNDC3B, microRNA-3612 (miR-3612), and LIM and SH3 protein 1 (LASP1) levels were detected by real-time quantitative polymerase chain reaction (RT-qPCR). Cell viability, colony number, migration, invasion, and apoptosis were examined by Cell Counting Kit-8 (CCK-8), colony formation, transwell, and flow cytometry assays, severally. Glucose consumption, lactate production, and ATP level were measured by the corresponding kits. Protein levels of hexokinase 2 (HK2) and lactate dehydrogenase A (LDHA), and LASP1 were assessed by western blot assay. The cytoplasmic localization of circ_0006948 was identified by the subcellular fractionation assay. The binding relationship between miR-3612 and circ_0006948 or LASP1 was predicted by starBase or TargetScan and then verified by a dual-luciferase reporter assay. The biological role of circ_0006948 on ESCC tumor growth was examined by the xenograft tumor model in vivo. RESULTS Circ_0006948 and LASP1 were increased, and miR-3612 was decreased in ESCC tissues and cells. Furthermore, circ_0006948 knockdown could suppress cell viability, colony number, migration, invasion, glycolysis, and boost apoptosis in ESCC cells. Mechanically, circ_0006948 could act as a sponge of miR-3612 to regulate LASP1 expression. In addition, circ_0006948 silencing inhibited ESCC tumor growth in vivo. CONCLUSION Circ_0006948 boosted ESCC progression partly by regulating the miR-3612/LASP1 axis, providing an underlying therapeutic target for the ESCC treatment.
Collapse
|
15
|
Wang S, Wang Z, Su H, Chen F, Ma M, Yu W, Ye G, Cen S, Mi R, Wu X, Deng W, Feng P, Zeng C, Shen H, Wu Y. Effects of long-term culture on the biological characteristics and RNA profiles of human bone-marrow-derived mesenchymal stem cells. MOLECULAR THERAPY-NUCLEIC ACIDS 2021; 26:557-574. [PMID: 34631285 PMCID: PMC8479280 DOI: 10.1016/j.omtn.2021.08.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 08/12/2021] [Indexed: 12/16/2022]
Abstract
Expansion in vitro prior to mesenchymal stem cells (MSCs) application is a necessary process. Functional and genomic stability has a crucial role in stem-cell-based therapies. However, the exact expression and co-expressed profiles of coding and non-coding RNAs in human bone marrow (BM)-MSCs in vitro aging are still lacking. In the present studies, the change of morphology, immunophenotype, and capacity of proliferation, differentiation, and immunoregulation of MSCs at passage (P) 4, P6, P8, P10, and P12 were investigated. RNA sequencing identified that 439 mRNAs, 65 long noncoding RNAs (lncRNAs), 59 microRNAs (miRNAs), and 229 circular RNAs (circRNAs) were differentially expressed (DE) in P12 compared with P4, with a similar trend in P6. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and gene set enrichment analysis (GSEA) identified several significant biological processes and pathways, including binding, ossification, and Wnt and PPAR signaling pathways. Interaction and co-expression/localization analyses were performed for DE mRNAs and lncRNAs, and several key lncRNAs, circRNAs, and important pathways like autophagy and mitophagy were identified in the competing endogenous RNA (ceRNA) network. Some key RNAs found in the bioinformatics analysis were validated. Our studies indicate that replicative senescence of MSCs is a continuous process, including widespread alterations in biological characteristics and global gene expression patterns that need to be considered before therapeutic applications of MSCs.
Collapse
Affiliation(s)
- Shan Wang
- Center for Biotherapy, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Ziming Wang
- Department of Orthopedics, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Hongjun Su
- Center for Biotherapy, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - Fenglei Chen
- Department of Orthopedics, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Mengjun Ma
- Department of Orthopedics, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Wenhui Yu
- Department of Orthopedics, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Guiwen Ye
- Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - Shuizhong Cen
- Department of Orthopedics, Zhujiang Hospital of Southern Medical Universuty, Guangzhou 510280, P.R. China
| | - Rujia Mi
- Center for Biotherapy, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Xiaohua Wu
- Center for Biotherapy, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - Wen Deng
- Center for Biotherapy, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - Pei Feng
- Center for Biotherapy, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - Chenying Zeng
- Center for Biotherapy, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| | - Huiyong Shen
- Department of Orthopedics, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China.,Department of Orthopedics, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou 510120, P.R. China
| | - Yanfeng Wu
- Center for Biotherapy, Eighth Affiliated Hospital of Sun Yat-sen University, Shenzhen 518033, P.R. China
| |
Collapse
|
16
|
Xu C, Sun W, Liu J, Pu H, Li Y. MiR-342-3p inhibits LCSC oncogenicity and cell stemness through HDAC7/PTEN axis. Inflamm Res 2021; 71:107-117. [PMID: 34842937 DOI: 10.1007/s00011-021-01521-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 10/31/2021] [Accepted: 11/01/2021] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE This study aims to explore the effects of miR-342-3p on liver cancer stem cells (LCSC) and related mechanism. METHODS LCSC were sorted using immunomagnetic beads and flow cytometry was used to determine CD133+ and CD133- sorted cells. The self-renewal ability and growth ability of LCSC were measured by tumor spheroid formation assay and soft agar colony formation assay. Protein and mRNA expressions of CD44, ALDH1, Bmi1, Sox2 and Oct4 were detected by western blot and quantitative PCR. The relationship between miR-342-3p and HDAC7 was analyzed by dual-luciferase assay. The acetylation level of H3 protein was measured by acetyl Lysine antibody. RESULTS miR-342-3p overexpression in LCSC lead to lower tumor volume, reduced tumor spheroid formation and agar colony formation rates, as well as lower mRNA and protein expressions of CD44, ALDH1, Bmi1, Sox2, and Oct4. Dual-luciferase reporter assay confirmed HDAC7 as a target gene of miR-342-3p. Inhibition of HDAC7 or overexpression of PTEN suppressed the carcinogenicity and stemness of LCSC. PTEN expression was increased in sh-HDAC7 group and decreased in pcDNA3.1-HDAC7 group. HDAC7 promoted H3 deacetylation and inhibited PTEN expression. Overexpression of HDAC7 or silencing of PTEN could reverse the inhibitory effect of overexpression of miR-342-3p on LCSC carcinogenicity and cell stemness. CONCLUSION MiR-342-3p inhibited LCSC oncogenicity and cell stemness by promoting PTEN and inhibiting HDAC7.
Collapse
Affiliation(s)
- Chunlin Xu
- Department of Infectious Disease (No. 3), Second Affiliated Hospital of Harbin Medical University, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Weiwei Sun
- Department of Respiratory Oncology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Jinglei Liu
- Department of Respiratory Oncology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Haihong Pu
- Department of Respiratory Oncology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin, 150040, Heilongjiang, People's Republic of China
| | - Yinghong Li
- Department of Respiratory Oncology, Harbin Medical University Cancer Hospital, No. 150, Haping Road, Nangang District, Harbin, 150040, Heilongjiang, People's Republic of China.
| |
Collapse
|
17
|
Li Y, Zhai Y, Chen Y. GATA1-induced upregulation of LINC01503 promotes carboplatin resistance in ovarian carcinoma by upregulating PD-L1 via sponging miR-766-5p. J Ovarian Res 2021; 14:108. [PMID: 34425872 PMCID: PMC8383404 DOI: 10.1186/s13048-021-00856-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 08/05/2021] [Indexed: 01/15/2023] Open
Abstract
Background Ovarian Carcinoma (OCa) is a high-mortality malignancy derived from female reproductive system. Increasing evidence has identified long non-coding RNAs (lncRNAs) as important regulators in OCa chemoresistance. In this study, we intended to explore the role of LINC01503 in OCa resistance to carboplatin (CBP). Methods Gene expression was measured by reverse transcription-quantitative PCR (RT-qPCR) in OCa cells. Western blot was adopted to detect protein levels of GATA1, PD-L1, E-cadherin, N-cadherin, Vimentin, Bcl-2, Bax, cleaved caspase-3. To assess the effects of LINC01503 on the resistance of OCa cells to CBP, Cell Counting Kit-8 (CCK-8), colony formation, Transwell, and flow cytometry experiments were performed to evaluate half-maximal inhibitory concentration (IC50), cell viability, migrative and invasive ability, as well as cell apoptosis. Dual-luciferase reporter assay was employed to assess the associations between the genes. Results LINC01503 was upregulated in CBP-resistant OCa cells. LINC01503 knockdown reduced CBP resistance in OCa cells. Besides, GATA-binding protein 1 (GATA1) activated LINC01503 transcription in CBP-resistant OCa cells. MiR-766-5p was lowly expressed in CBP-resistant cells and confirmed as a target for LINC01503. In addition, miR-766-5p overexpression increased CBP sensitivity in OCa cells. PD-L1 was verified as the target of miR-766-5p. Besides, LINC01503 upregulated PD-L1 level by regulating miR-766-5p. Furthermore, rescue experiments showed that PD-L1 overexpression abrogated the inhibited impacts of blocking LINC01503 on CBP resistance in OCa cells. Conclusion GATA1-induced LINC01503 expedited CBP resistance in OCa cells via the miR-766-5p/PD-L1 axis, providing a new target for improving the efficacy of OCa chemotherapy. Graphical Abstract ![]()
Collapse
Affiliation(s)
- Yao Li
- Department of Gynaecology and Obstetrics, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 South Workers Stadium Road, Chaoyang District, Beijing, 100020, China.
| | - Yan Zhai
- Department of Gynaecology and Obstetrics, Beijing Chao-Yang Hospital, Capital Medical University, No. 8 South Workers Stadium Road, Chaoyang District, Beijing, 100020, China
| | - Yuxuan Chen
- Department of Gynecology, Capital Medical University, Beijing, 100071, China
| |
Collapse
|
18
|
Wu T, Fu S, He S, Che X, Mo Z. The Targeting Mechanism of Long Intergenic Non-Coding RNA 01503 to miR-338-3p and Its Regulation on Cell Behaviors of Bladder Cancer T24 Cells. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to investigate the effects of long intergenic non-coding RNA 01503 (LINC01503) on cell behaviors of T24 bladder cancer cells, including proliferation and apoptosis, as well as its mechanism for targeting miR-338-3p. First, bladder cancer tissues and the corresponding
adjacent tissues were obtained and subjected to RT-qPCR to analyze their LINC01503 and miR-338-3p expressions. Afterward, si-LINC01503, miR-338-3p mimics were transfected into T24 cells and then CCK-8 assay and flow cytometry were applied to analyze the cell behaviors of the T24 cells, including
proliferation and apoptosis. In additionally, Western blot was carried out to analyze the protein expressions of Ki-67, Bcl-2, and Bax. Finally, dual luciferase reporter and RT-qPCR assay were used to confirm the targeted function of LINC01503 to miR-338-3p. Our data clearly demonstrates a
highly expressed LINC01503 and a lowly expressed miR-338-3p in bladder cancer. Interfering LINC01503 was found to obviously influence some protein expressions, such that it down-regulated Ki-67 and Bcl-2 expressions, but upregulated Bax expression, thus resulting in reduced proliferation and
enhanced apoptosis. Meanwhile, miR-338-3p overexpression was found to influence these protein expressions, which was similar to functions of the interfering LINC01503. Furthermore, it was found that LINC01503 directly binds to miR-338-3p and that LINC01503 overexpression could obviously down-regulate
miR-338-3p expression, thus weakening the influence of interfering LINC01503 on behaviors of the T24 cells. Our results demonstrate that interfering LINC01503 could affect cell behaviors of T24 bladder cancer cells, inhibit proliferation, and induce apoptosis, which was mediated by the targeted
binding of interfering LINC01503to miR-338-3p.
Collapse
Affiliation(s)
- Tingming Wu
- Department of Urology, The Second Affiliated Hospital of Hainan Medical College, Haikou 570311, Hainan, PR China
| | - Shibao Fu
- Department of Urology, The Second Affiliated Hospital of Hainan Medical College, Haikou 570311, Hainan, PR China
| | - Shuming He
- Department of Urology, The Second Affiliated Hospital of Hainan Medical College, Haikou 570311, Hainan, PR China
| | - Xianping Che
- Department of Urology, The Second Affiliated Hospital of Hainan Medical College, Haikou 570311, Hainan, PR China
| | - Zhibo Mo
- Department of Urology, The Second Affiliated Hospital of Hainan Medical College, Haikou 570311, Hainan, PR China
| |
Collapse
|