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Hayashi Y, Millen JC, Ramos RI, Linehan JA, Wilson TG, Hoon DSB, Bustos MA. Cell-free and extracellular vesicle microRNAs with clinical utility for solid tumors. Mol Oncol 2024. [PMID: 39129372 DOI: 10.1002/1878-0261.13709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/28/2024] [Accepted: 07/23/2024] [Indexed: 08/13/2024] Open
Abstract
As cutting-edge technologies applied for the study of body fluid molecular biomarkers are continuously evolving, clinical applications of these biomarkers improve. Diverse forms of circulating molecular biomarkers have been described, including cell-free DNA (cfDNA), circulating tumor cells (CTCs), and cell-free microRNAs (cfmiRs), although unresolved issues remain in their applicability, specificity, sensitivity, and reproducibility. Translational studies demonstrating the clinical utility and importance of cfmiRs in multiple cancers have significantly increased. This review aims to summarize the last 5 years of translational cancer research in the field of cfmiRs and their potential clinical applications to diagnosis, prognosis, and monitoring disease recurrence or treatment responses with a focus on solid tumors. PubMed was utilized for the literature search, following rigorous exclusion criteria for studies based on tumor types, patient sample size, and clinical applications. A total of 136 studies on cfmiRs in different solid tumors were identified and divided based on tumor types, organ sites, number of cfmiRs found, methodology, and types of biofluids analyzed. This comprehensive review emphasizes clinical applications of cfmiRs and summarizes underserved areas where more research and validations are needed.
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Affiliation(s)
- Yoshinori Hayashi
- Department of Translational Molecular Medicine, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Janelle-Cheri Millen
- Department of Surgical Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Romela Irene Ramos
- Department of Translational Molecular Medicine, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Jennifer A Linehan
- Department of Urology and Urologic Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Timothy G Wilson
- Department of Urology and Urologic Oncology, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Dave S B Hoon
- Department of Translational Molecular Medicine, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
- Department of Genome Sequencing Center, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
| | - Matias A Bustos
- Department of Translational Molecular Medicine, Saint John's Cancer Institute at Providence Saint John's Health Center, Santa Monica, CA, USA
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Extracellular Vesicles Secreted by Glioma Stem Cells Are Involved in Radiation Resistance and Glioma Progression. Int J Mol Sci 2022; 23:ijms23052770. [PMID: 35269915 PMCID: PMC8911495 DOI: 10.3390/ijms23052770] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/25/2022] [Accepted: 02/26/2022] [Indexed: 02/01/2023] Open
Abstract
Glioblastoma is the most aggressive brain tumour with short survival, partly due to resistance to conventional therapy. Glioma stem cells (GSC) are likely to be involved in treatment resistance, by releasing extracellular vesicles (EVs) containing specific molecular cargoes. Here, we studied the EVs secreted by glioma stem cells (GSC-EVs) and their effects on radiation resistance and glioma progression. EVs were isolated from 3 GSCs by serial centrifugation. NanoSight measurement, cryo-electron microscopy and live imaging were used to study the EVs size, morphology and uptake, respectively. The non-GSC glioma cell lines LN229 and U118 were utilised as a recipient cell model. Wound healing assays were performed to detect cell migration. Colony formation, cell viability and invadopodium assays were conducted to detect cell survival of irradiated recipient cells and cell invasion post GSC-EV treatment. NanoString miRNA global profiling was used to select for the GSC-EVs’ specific miRNAs. All three GSC cell lines secreted different amounts of EVs, and all expressed consistent levels of CD9 but different level of Alix, TSG101 and CD81. EVs were taken up by both LN229 and U118 recipient cells. In the presence of GSC-EVs, these recipient cells survived radiation exposure and initiated colony formation. After GSC-EVs exposure, LN229 and U118 cells exhibited an invasive phenotype, as indicated by an increase in cell migration. We also identified 25 highly expressed miRNAs in the GSC-EVs examined, and 8 of these miRNAs can target PTEN. It is likely that GSC-EVs and their specific miRNAs induced the phenotypic changes in the recipient cells due to the activation of the PTEN/Akt pathway. This study demonstrated that GSC-EVs have the potential to induce radiation resistance and modulate the tumour microenvironment to promote glioma progression. Future therapeutic studies should be designed to interfere with these GSC-EVs and their specific miRNAs.
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Jones J, Nguyen H, Drummond K, Morokoff A. Circulating Biomarkers for Glioma: A Review. Neurosurgery 2021; 88:E221-E230. [PMID: 33442748 DOI: 10.1093/neuros/nyaa540] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/10/2020] [Indexed: 12/18/2022] Open
Abstract
Accurate circulating biomarkers have potential clinical applications in population screening, tumor subclassification, monitoring tumor status, and the delivery of individualized treatments resulting from tumor genotyping. Recently, significant progress has been made within this field in several cancer types, but despite the many potential benefits, currently there is no validated circulating biomarker test for patients with glioma. A number of circulating factors have been examined, including circulating tumor cells, cell-free DNA, microRNA, exosomes, and proteins from both peripheral blood and cerebrospinal fluid with variable results. In the following article, we provide a narrative review of the current evidence pertaining to circulating biomarkers in patients with glioma, including discussion of the advantages and challenges encountered with the current methods used for discovery. Additionally, the potential clinical applications are described with reference to the literature.
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Affiliation(s)
- Jordan Jones
- Department of Surgery, University of Melbourne, Melbourne, Australia.,Department of Neurosurgery, Royal Melbourne Hospital, Melbourne, Australia
| | - Hong Nguyen
- Department of Surgery, University of Melbourne, Melbourne, Australia
| | - Katharine Drummond
- Department of Surgery, University of Melbourne, Melbourne, Australia.,Department of Neurosurgery, Royal Melbourne Hospital, Melbourne, Australia
| | - Andrew Morokoff
- Department of Surgery, University of Melbourne, Melbourne, Australia.,Department of Neurosurgery, Royal Melbourne Hospital, Melbourne, Australia
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Serum microRNA is a biomarker for post-operative monitoring in glioma. J Neurooncol 2020; 149:391-400. [PMID: 32915353 DOI: 10.1007/s11060-020-03566-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/17/2020] [Indexed: 01/03/2023]
Abstract
PURPOSE A circulating biomarker has potential to provide more accurate information for glioma progression post treatment, however no such biomarker is currently available. We aimed to discover a microRNA serum biomarker for longitudinal monitoring of glioma patients. METHODS A prospectively collected cohort of 91 glioma patients and 17 healthy controls underwent pre and post-operative serum miRNA profiling using Nanostring®. Differentially expressed miRNAs were discovered using a machine learning random forest analysis. Candidate miRNAs were then assessed by droplet digital PCR in 11 patients with multiple follow up samples and compared to tumor volume based on magnetic resonance imaging. RESULTS A 9-gene miRNA signature was identified that could distinguish between glioma and healthy controls with 99.8% accuracy. Two miRNAs miR-223 and miR-320e, best demonstrated dynamic changes that correlated closely with tumor volume in LGG and GBM respectively. Importantly, miRNA levels did not increase in two cases of pseudo-progression, indicating the potential utility of this test in guiding treatment decisions. CONCLUSIONS We identified a highly accurate 9-miRNA signature associated with glioma serum. Additionally, we observed dynamic changes in specific miRNAs correlating with tumor volume over long-term follow up. These results support a large prospective validation study of serum miRNA biomarkers in glioma.
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Lu VM, Shah AH, Eichberg DG, Luther EM, Shah SS, Komotar RJ, Ivan ME. Utilizing systematic reviews and meta-analyses effectively to evaluate brain tumor biomarkers. Biomark Med 2020; 14:817-820. [PMID: 32799644 DOI: 10.2217/bmm-2020-0209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 05/28/2020] [Indexed: 11/21/2022] Open
Affiliation(s)
- Victor M Lu
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
- Department of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA
| | - Ashish H Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Daniel G Eichberg
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Evan M Luther
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Sumedh S Shah
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Ricardo J Komotar
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Michael E Ivan
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA
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Nguyen HP, Daniel PM, Filiz G, Mantamadiotis T. Investigating Neural Stem Cell and Glioma Stem Cell Self-renewal Potential Using Extreme Limiting Dilution Analysis (ELDA). Bio Protoc 2018; 8:e2991. [PMID: 34395790 DOI: 10.21769/bioprotoc.2991] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/08/2018] [Accepted: 08/21/2018] [Indexed: 11/02/2022] Open
Abstract
Glioma stem cells (GSC) grown as neurospheres exhibit similar characteristics to neural stem cells (NSC) grown as neurospheres, including the ability to self-renew and differentiate. GSCs are thought to play a role in cancer initiation and progression. Self-renewal potential of GSCs is thought to reflect many characteristics associated with malignancy, including tumor recurrence following cytotoxic therapy due to their proliferative dormancy and capacity to allow for the development of resistant tumor cell sub-clones due to mutations acquired during their differentiation. Here, we demonstrate that using extreme limiting dilution analysis (ELDA), subtle differences in the frequency of sphere-forming potential between PI3K-mutant oncogenic NSCs and non-oncogenic NSCs can be measured, in vitro. We further show how ELDA can be used on cells, before and after forced differentiation to amplify inherent differences in sphere-forming potential between mutant and control NSCs. Ultimately, ELDA exploits a difference in the ability of a single or a few seeded stem cells to self-renew, divide and form neurospheres. Importantly, the assay also allows a comparison between genetically distinct cells or between the same cells under different conditions, where the impact of target-specific drugs or other novel cancer stem cell therapies can be tested.
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Affiliation(s)
- Hong Pt Nguyen
- Department of Surgery, The University of Melbourne, Parkville, Australia
| | - Paul M Daniel
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Australia
| | - Gulay Filiz
- Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Australia
| | - Theo Mantamadiotis
- Department of Surgery, The University of Melbourne, Parkville, Australia.,Department of Microbiology and Immunology, The University of Melbourne, Melbourne, Australia.,Department of Surgery, Victorian Comprehensive Cancer Centre, The University of Melbourne, Melbourne, Australia
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