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Moradi A, Whatmore P, Farashi S, Barrero RA, Batra J. IsomiR-eQTL: A Cancer-Specific Expression Quantitative Trait Loci Database of miRNAs and Their Isoforms. Int J Mol Sci 2022; 23:ijms232012493. [PMID: 36293349 PMCID: PMC9604134 DOI: 10.3390/ijms232012493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/06/2022] [Accepted: 10/06/2022] [Indexed: 11/16/2022] Open
Abstract
The identification of expression quantitative trait loci (eQTL) is an important component in efforts to understand how genetic variants influence disease risk. MicroRNAs (miRNAs) are short noncoding RNA molecules capable of regulating the expression of several genes simultaneously. Recently, several novel isomers of miRNAs (isomiRs) that differ slightly in length and sequence composition compared to their canonical miRNAs have been reported. Here we present isomiR-eQTL, a user-friendly database designed to help researchers find single nucleotide polymorphisms (SNPs) that can impact miRNA (miR-eQTL) and isomiR expression (isomiR-eQTL) in 30 cancer types. The isomiR-eQTL includes a total of 152,671 miR-eQTLs and 2,390,805 isomiR-eQTLs at a false discovery rate (FDR) of 0.05. It also includes 65,733 miR-eQTLs overlapping known cancer-associated loci identified through genome-wide association studies (GWAS). To the best of our knowledge, this is the first study investigating the impact of SNPs on isomiR expression at the genome-wide level. This database may pave the way for researchers toward finding a model for personalised medicine in which miRNAs, isomiRs, and genotypes are utilised.
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Affiliation(s)
- Afshin Moradi
- Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane 4059, Australia
- Translational Research Institute, Queensland University of Technology, Brisbane 4102, Australia
| | - Paul Whatmore
- eResearch, Research Infrastructure, Academic Division, Queensland University of Technology, Brisbane 4000, Australia
| | - Samaneh Farashi
- Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane 4059, Australia
- Translational Research Institute, Queensland University of Technology, Brisbane 4102, Australia
| | - Roberto A. Barrero
- eResearch, Research Infrastructure, Academic Division, Queensland University of Technology, Brisbane 4000, Australia
| | - Jyotsna Batra
- Centre for Genomics and Personalised Health, Queensland University of Technology, Brisbane 4059, Australia
- Translational Research Institute, Queensland University of Technology, Brisbane 4102, Australia
- Faculty of Health, School of Biomedical Sciences, Queensland University of Technology, Brisbane 4059, Australia
- Correspondence:
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Saleemi M, Kong Y, Yong P, Wong E. An overview of recent development in therapeutic drug carrier system using carbon nanotubes. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101855] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Drago-García D, Espinal-Enríquez J, Hernández-Lemus E. Network analysis of EMT and MET micro-RNA regulation in breast cancer. Sci Rep 2017; 7:13534. [PMID: 29051564 PMCID: PMC5648819 DOI: 10.1038/s41598-017-13903-1] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 09/27/2017] [Indexed: 12/13/2022] Open
Abstract
Over the last years, microRNAs (miRs) have shown to be crucial for breast tumour establishment and progression. To understand the influence that miRs have over transcriptional regulation in breast cancer, we constructed mutual information networks from 86 TCGA matched breast invasive carcinoma and control tissue RNA-Seq and miRNA-Seq sequencing data. We show that miRs are determinant for tumour and control data network structure. In tumour data network, miR-200, miR-199 and neighbour miRs seem to cooperate on the regulation of the acquisition of epithelial and mesenchymal traits by the biological processes: Epithelial-Mesenchymal Transition (EMT) and Mesenchymal to Epithelial Transition (MET). Despite structural differences between tumour and control networks, we found a conserved set of associations between miR-200 family members and genes such as VIM, ZEB-1/2 and TWIST-1/2. Further, a large number of miRs observed in tumour network mapped to a specific chromosomal location in DLK1-DIO3 (Chr14q32); some of those miRs have also been associated with EMT and MET regulation. Pathways related to EMT and TGF-beta reinforce the relevance of miR-200, miR-199 and DLK1-DIO3 cluster in breast cancer. With this approach, we stress that miR inclusion in gene regulatory network construction improves our understanding of the regulatory mechanisms underlying breast cancer biology.
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Affiliation(s)
- Diana Drago-García
- Computational Genomics Division, National Institute of Genomic Medicine (INMEGEN), Mexico City, 14610, Mexico
| | - Jesús Espinal-Enríquez
- Computational Genomics Division, National Institute of Genomic Medicine (INMEGEN), Mexico City, 14610, Mexico
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México (UNAM), Mexico, 04510, Mexico
| | - Enrique Hernández-Lemus
- Computational Genomics Division, National Institute of Genomic Medicine (INMEGEN), Mexico City, 14610, Mexico.
- Centro de Ciencias de la Complejidad, Universidad Nacional Autónoma de México (UNAM), Mexico, 04510, Mexico.
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Perepelytsina OM, Yakymchuk OM, Sydorenko MV, Bakalinska ON, Bloisi F, Vicari LRM. Functionalization of Carbon Nanomaterial Surface by Doxorubicin and Antibodies to Tumor Markers. NANOSCALE RESEARCH LETTERS 2016; 11:314. [PMID: 27356561 PMCID: PMC4927544 DOI: 10.1186/s11671-016-1537-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 06/24/2016] [Indexed: 06/06/2023]
Abstract
The actual task of oncology is effective treatment of cancer while causing a minimum harm to the patient. The appearance of polymer nanomaterials and technologies launched new applications and approaches of delivery and release of anticancer drugs. The goal of work was to test ultra dispersed diamonds (UDDs) and onion-like carbon (OLCs) as new vehicles for delivery of antitumor drug (doxorubicin (DOX)) and specific antibodies to tumor receptors. Stable compounds of UDDs and OLCs with DOX were obtained. As results of work, an effectiveness of functionalization was 2.94 % w/w for OLC-DOX and 2.98 % w/w for UDD-DOX. Also, there was demonstrated that UDD-DOX and OLC-DOX constructs had dose-dependent cytotoxic effect on tumor cells in the presence of trypsin. The survival of adenocarcinoma cells reduced from 52 to 28 % in case of incubation with the UDD-DOX in concentrations from 8.4-2.5 to 670-20 μg/ml and from 72 to 30 % after incubation with OLC-DOX. Simultaneously, antibodies to epidermal growth factor maintained 75 % of the functional activity and specificity after matrix-assisted pulsed laser evaporation deposition. Thus, the conclusion has been made about the prospects of selected new methods and approaches for creating an antitumor agent with capabilities targeted delivery of drugs.
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Affiliation(s)
- Olena M Perepelytsina
- Department of biotechnical problems of diagnostic IPCC, Nauky str.,42/1, Kiev, 03028, Ukraine
| | - Olena M Yakymchuk
- Department of biotechnical problems of diagnostic IPCC, Nauky str.,42/1, Kiev, 03028, Ukraine.
| | - Mychailo V Sydorenko
- Department of biotechnical problems of diagnostic IPCC, Nauky str.,42/1, Kiev, 03028, Ukraine
| | - Olga N Bakalinska
- Chuiko Institute of Surface Chemistry NAS of Ukraine, 17 General Naumov str., Kiev, 03164, Ukraine
| | - Francesco Bloisi
- Dipartimento di Fisica, Università degli studi di Napoli Federico II, Piazzale Teccnio, Naples, 80-80125, Italy
- SPIN-CNR, Via Cintia 1, Naples, 80124, Italy
| | - Luciano Rosario Maria Vicari
- Dipartimento di Fisica, Università degli studi di Napoli Federico II, Piazzale Teccnio, Naples, 80-80125, Italy
- SPIN-CNR, Via Cintia 1, Naples, 80124, Italy
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Identification of Novel Breast Cancer Subtype-Specific Biomarkers by Integrating Genomics Analysis of DNA Copy Number Aberrations and miRNA-mRNA Dual Expression Profiling. BIOMED RESEARCH INTERNATIONAL 2015; 2015:746970. [PMID: 25961039 PMCID: PMC4413257 DOI: 10.1155/2015/746970] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 09/15/2014] [Accepted: 09/22/2014] [Indexed: 12/11/2022]
Abstract
Breast cancer is a heterogeneous disease with well-defined molecular subtypes. Currently, comparative genomic hybridization arrays (aCGH) techniques have been developed rapidly, and recent evidences in studies of breast cancer suggest that tumors within gene expression subtypes share similar DNA copy number aberrations (CNA) which can be used to further subdivide subtypes. Moreover, subtype-specific miRNA expression profiles are also proposed as novel signatures for breast cancer classification. The identification of mRNA or miRNA expression-based breast cancer subtypes is considered an instructive means of prognosis. Here, we conducted an integrated analysis based on copy number aberrations data and miRNA-mRNA dual expression profiling data to identify breast cancer subtype-specific biomarkers. Interestingly, we found a group of genes residing in subtype-specific CNA regions that also display the corresponding changes in mRNAs levels and their target miRNAs' expression. Among them, the predicted direct correlation of BRCA1-miR-143-miR-145 pairs was selected for experimental validation. The study results indicated that BRCA1 positively regulates miR-143-miR-145 expression and miR-143-miR-145 can serve as promising novel biomarkers for breast cancer subtyping. In our integrated genomics analysis and experimental validation, a new frame to predict candidate biomarkers of breast cancer subtype is provided and offers assistance in order to understand the potential disease etiology of the breast cancer subtypes.
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Miller PC, Clarke J, Koru-Sengul T, Brinkman J, El-Ashry D. A novel MAPK-microRNA signature is predictive of hormone-therapy resistance and poor outcome in ER-positive breast cancer. Clin Cancer Res 2014; 21:373-85. [PMID: 25370469 DOI: 10.1158/1078-0432.ccr-14-2053] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Hyperactivation of ERK1/2 MAPK (hMAPK) leads to loss of estrogen receptor (ER) expression and poor outcome in breast cancer. microRNAs (miRNA) play important regulatory roles and serve as biomarkers of disease. Here, we describe molecular, pathologic, and clinical outcome associations of an hMAPK-miRNA expression signature in breast cancer. EXPERIMENTAL DESIGN An hMAPK-miRNA signature was identified, and associations of this signature with molecular and genetic alterations, gene expression, pathologic features, and clinical outcomes were determined in primary breast cancers from training data and validated using independent datasets. Univariate and multivariate analyses identified subsignatures associated with increased disease recurrence and poorer disease survival among ER-positive (ER(+)) patients, respectively. RESULTS High-hMAPK-miRNA status significantly correlated with ER-negativity, enrichment for basal and HER2-subtypes, and reduced recurrence-free and disease-specific survival in publicly available datasets. A robust determination of a recurrence signature and a survival signature identified hMAPK-miRNAs commonly associated with poor clinical outcome, and specific subsets associated more closely with either disease recurrence or disease survival, especially among ER(+) cancers of both luminal A and luminal B subtypes. Multivariate analyses indicated that these recurrence and survival signatures significantly associated with increased risk of disease-specific death and disease recurrence in ER(+) cancer and ER(+) cancers treated with hormone therapy. CONCLUSIONS We report an hMAPK-miRNA signature and two subsignatures derived from it that associate significantly with adverse clinical features, poor clinical outcome, and poor response to hormone therapy in breast cancer, thus identifying potential effectors of MAPK signaling, and novel predictive and prognostic biomarkers or therapeutic targets in breast cancer.
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Affiliation(s)
- Philip C Miller
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida. Braman Family Breast Cancer Institute, University of Miami Miller School of Medicine, Miami, Florida
| | - Jennifer Clarke
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida. Braman Family Breast Cancer Institute, University of Miami Miller School of Medicine, Miami, Florida. Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida. Department of Epidemiology and Public Health, University of Miami Miller School of Medicine, Miami, Florida. Department of Statistics, University of Nebraska-Lincoln, Lincoln, Nebraska
| | - Tulay Koru-Sengul
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida. Department of Epidemiology and Public Health, University of Miami Miller School of Medicine, Miami, Florida
| | - Joeli Brinkman
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida
| | - Dorraya El-Ashry
- Sylvester Comprehensive Cancer Center, University of Miami Miller School of Medicine, Miami, Florida. Braman Family Breast Cancer Institute, University of Miami Miller School of Medicine, Miami, Florida. Department of Medicine, University of Miami Miller School of Medicine, Miami, Florida.
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