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Pernar Kovač M, Tadić V, Kralj J, Milković Periša M, Orešković S, Babić I, Banović V, Zhang W, Culig Z, Brozovic A. MiRNA-mRNA integrative analysis reveals epigenetically regulated and prognostic miR-103a with a role in migration and invasion of carboplatin-resistant ovarian cancer cells that acquired mesenchymal-like phenotype. Biomed Pharmacother 2023; 166:115349. [PMID: 37634476 DOI: 10.1016/j.biopha.2023.115349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 08/07/2023] [Accepted: 08/19/2023] [Indexed: 08/29/2023] Open
Abstract
BACKGROUND DNA methylation, histone modifications, and miRNAs affect ovarian cancer (OC) progression and therapy response. PURPOSE Identification of epigenetically downregulated miRNAs in drug-resistant OC cell lines with a possible role in drug resistance and/or drug-induced mesenchymal-like phenotype. METHODS MiRNA profiling was performed on parental and carboplatin-resistant OC cells, MES-OV and MES-OV CBP. RT-qPCR validation, epigenetic modulation and other CBP-resistant OC cell lines were used to select miRNAs of interest. The integration of miRNA-predicted target genes and differentially expressed genes (DEGs), pathway and functional analysis were used for forecasting their biological role. Data mining was performed to determine their possible prognostic and predictive values. RESULTS MiRNA profiling revealed 48 downregulated miRNAs in OC cells whose drug sensitivity and metastatic potential were impacted by epigenetic modulators. Of the fourteen selected, nine were validated as changed, and seven of these restored their expression upon treatment with epigenetic inhibitors. Only three had similar expression patterns in other OC cell lines. MiRNA-mRNA integrative analysis resulted in 56 target DEGs. Pathway analysis revealed that these genes are involved in cell adhesion, migration, and invasion. The functional analysis confirmed the role of miR-103a-3p, miR-17-5p and miR-107 in cell invasion, while data mining showed their prognostic and predictive values. Only miR-103a-3p was epigenetically regulated at the constitutive level. CONCLUSION High throughput miRNA and cDNA profiling coupled with pathway analysis and data mining delivered evidence for miRNAs which can be epigenetically regulated in drug-resistant, mesenchymal-like OC cells as possible markers to combat therapy-induced short overall survival and tumor metastatic potential.
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Affiliation(s)
- Margareta Pernar Kovač
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Vanja Tadić
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Juran Kralj
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia
| | - Marija Milković Periša
- University Hospital Centre Zagreb, Department of Pathology and Cytology, Petrova ulica 13, HR-10000 Zagreb, Croatia; University of Zagreb, School of Medicine, Institute of Pathology, Šalata 10, HR-10000 Zagreb, Croatia
| | - Slavko Orešković
- Department of Obstetrics and Gynecology, University Hospital Center Zagreb, Petrova 13, HR-10000 Zagreb, Croatia
| | - Ivan Babić
- Department of Obstetrics and Gynecology, University Hospital Center Zagreb, Petrova 13, HR-10000 Zagreb, Croatia
| | - Vladimir Banović
- Department of Obstetrics and Gynecology, University Hospital Center Zagreb, Petrova 13, HR-10000 Zagreb, Croatia
| | - Wei Zhang
- Department of Engineering Mechanics, Dalian University of Technology, Linggong Road 2, 116024 Dalian, China
| | - Zoran Culig
- Department of Urology, Medical University of Innsbruck, Anichstrasse 35, A-6020 Innsbruck, Austria
| | - Anamaria Brozovic
- Division of Molecular Biology, Ruđer Bošković Institute, Bijenička cesta 54, HR-10000 Zagreb, Croatia.
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Giordano R, Gerra MC, Okutani H, Lo Vecchio S, Stensballe A, Petersen KKS, Arendt-Nielsen L. The temporal expression of circulating microRNAs after acute experimental pain in humans. Eur J Pain 2023; 27:366-377. [PMID: 36453122 DOI: 10.1002/ejp.2062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 11/17/2022] [Accepted: 11/27/2022] [Indexed: 12/04/2022]
Abstract
BACKGROUND MicroRNAs (miRNAs) can modulate several biological systems, including the pain system. This study aimed to evaluate the temporal expression of circulating miRNAs in the plasma of healthy volunteers as a marker for epigenetic changes before and after an acute, experimental, pain provocation by intramuscular hypertonic saline injection. METHODS Twenty volunteers were randomly allocated into two groups and received either hypertonic (pain) or isotonic (control) saline injection in the first dorsal interosseous muscle of their dominant hand. Pain intensity was continuously recorded for 20 minutes after injection on a VAS scale from 0 to 100 (0 indicates no pain and 100 the worst imaginable pain). Blood samples were taken at baseline, 30 minutes, 3 hours, and 24 hours post-injection, and plasma was separated. MiRNA extracts were used for RNA sequencing with the Illumina NextSeq platform. MiRNA transcripts were compared between the pain and the no-pain, control group at every time point. Significant differences were considered when folds were >2 and the False Discovery Rate was p < 0.05. RESULTS After 30 minutes, 4 miRNAs were significantly altered in the pain group compared to controls, which increased to 24 after 3 hours and to 42 after 24 hours from baseline (p < 0.0001). Two miRNAs were consistently upregulated throughout the experiment. Enrichment analysis showed significant miRNAs involved in brain perception of pain, brain signalling and response to stimuli. CONCLUSIONS This exploratory study is the first to report on the temporal expression of circulating miRNAs after an acute, human experimental muscle pain model. SIGNIFICANCE This exploratory study evaluated the temporal profile of circulating miRNAs in the plasma of healthy subjects after acute experimental pain. Several miRNAs were altered in subjects at the times of follow-up after the acute pain model when compared to controls. MiRNAs previously associated with pain processes were altered in the pain group. Our results, by showing the fast and prolonged modifications of miRNA elicited by the acute experimental pain model, add new perspectives to the topic of epigenetics and pain.
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Affiliation(s)
- Rocco Giordano
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
| | - Maria Carla Gerra
- Department of Chemistry, Life science, and Environmental Sustainability, University of Parma, Parma, Italy
| | - Hiroai Okutani
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
- Department of Anesthesiology and Pain Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Silvia Lo Vecchio
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
| | - Allan Stensballe
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Kristian Kjaer-Staal Petersen
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
- Center for Mathematical Modeling of Knee Osteoarthritis (MathKOA), Aalborg University, Department of Material and Production, Faculty of Engineering and Science, Aalborg, Denmark
| | - Lars Arendt-Nielsen
- Center for Neuroplasticity and Pain (CNAP), SMI, Aalborg University, Department of Health Science and Technology, Faculty of Medicine, Aalborg, Denmark
- Department of Gastroenterology & Hepatology, (Mech-Sense), Aalborg University Hospital, Aalborg, Denmark
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Abstract
Canonically, microRNAs (miRNAs) control mRNA expression. However, studies have shown that miRNAs are also capable of targeting non-coding RNAs, including long non-coding RNAs and miRNAs. The latter, termed a miRNA:miRNA interaction, is a form of self-regulation. In this Review, we discuss the three main modes of miRNA:miRNA regulation: direct, indirect and global interactions, and their implications in cancer biology. We also discuss the cell-type-specific nature of miRNA:miRNA interactions, current experimental approaches and bioinformatic techniques, and how these strategies are not sufficient for the identification of novel miRNA:miRNA interactions. The self-regulation of miRNAs and their impact on gene regulation has yet to be fully understood. Investigating this hidden world of miRNA self-regulation will assist in discovering novel regulatory mechanisms associated with disease pathways.
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Affiliation(s)
- Meredith Hill
- School of Biomedical Engineering, Centre for Health Technologies, Faculty of Engineering and IT, The University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Nham Tran
- School of Biomedical Engineering, Centre for Health Technologies, Faculty of Engineering and IT, The University of Technology Sydney, Sydney, NSW 2007, Australia.,The Sydney Head and Neck Cancer Institute, Sydney Cancer Centre, Royal Prince Alfred Hospital, Camperdown, NSW 2050, Australia
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Abstract
Many small nucleolar RNAs and many of the hairpin precursors of miRNAs are processed from long non-protein-coding host genes. In contrast to their highly conserved and heavily structured payload, the host genes feature poorly conserved sequences. Nevertheless, there is mounting evidence that the host genes have biological functions beyond their primary task of carrying a ncRNA as payload. So far, no connections between the function of the host genes and the function of their payloads have been reported. Here we investigate whether there is evidence for an association of host gene function or mechanisms with the type of payload. To assess this hypothesis we test whether the miRNA host genes (MIRHGs), snoRNA host genes (SNHGs), and other lncRNA host genes can be distinguished based on sequence and/or structure features unrelated to their payload. A positive answer would imply a functional and mechanistic correlation between host genes and their payload, provided the classification does not depend on the presence and type of the payload. A negative answer would indicate that to the extent that secondary functions are acquired, they are not strongly constrained by the prior, primary function of the payload. We find that the three classes can be distinguished reliably when the classifier is allowed to extract features from the payloads. They become virtually indistinguishable, however, as soon as only sequence and structure of parts of the host gene distal from the snoRNAs or miRNA payload is used for classification. This indicates that the functions of MIRHGs and SNHGs are largely independent of the functions of their payloads. Furthermore, there is no evidence that the MIRHGs and SNHGs form coherent classes of long non-coding RNAs distinguished by features other than their payloads.
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Affiliation(s)
- Priyatansh Gurha
- From the Center for Cardiovascular Genetics, Institute of Molecular Medicine and Department of Medicine, University of Texas Health Sciences Center at Houston, and Texas Heart Institute, Houston, TX
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Zhao JG, Ren KM, Tang J, Zhang L. Relationship between mir-21 expression and clinical and pathological features of esophageal squamous cell carcinoma. Shijie Huaren Xiaohua Zazhi 2012; 20:3773-3776. [DOI: 10.11569/wcjd.v20.i36.3773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate mir-21 expression in esophageal squamous cell carcinoma (ESCC) and to analyze its relationship with the clinical and pathological features of ESCC.
METHODS: Real-time RT-PCR and the 2-∆∆CT method were used to detect the expression of mir-21 in 96 cases of ESCC and tumor-adjacent tissue. The relationship between expression of mir-21 and clinical and pathological features of ESCC was analyzed.
RESULTS: Of 96 cases of ESCC specimens, mir-21 was highly expressed in 40 cases (41.6%). High mir-21 expression was closely related with the degree of tumor differentiation and TNM stage (both P < 0.05).
CONCLUSION: The high expression of mir-21 may play an important role in the occurrence and development of ESCC.
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