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Beasley AB, Chen FK, Isaacs TW, Gray ES. Future perspectives of uveal melanoma blood based biomarkers. Br J Cancer 2022; 126:1511-1528. [PMID: 35190695 PMCID: PMC9130512 DOI: 10.1038/s41416-022-01723-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 01/15/2022] [Accepted: 01/27/2022] [Indexed: 01/06/2023] Open
Abstract
Uveal melanoma (UM) is the most common primary intraocular malignancy affecting adults. Despite successful local treatment of the primary tumour, metastatic disease develops in up to 50% of patients. Metastatic UM carries a particularly poor prognosis, with no effective therapeutic option available to date. Genetic studies of UM have demonstrated that cytogenetic features, including gene expression, somatic copy number alterations and specific gene mutations can allow more accurate assessment of metastatic risk. Pre-emptive therapies to avert metastasis are being tested in clinical trials in patients with high-risk UM. However, current prognostic methods require an intraocular tumour biopsy, which is a highly invasive procedure carrying a risk of vision-threatening complications and is limited by sampling variability. Recently, a new diagnostic concept known as "liquid biopsy" has emerged, heralding a substantial potential for minimally invasive genetic characterisation of tumours. Here, we examine the current evidence supporting the potential of blood circulating tumour cells (CTCs), circulating tumour DNA (ctDNA), microRNA (miRNA) and exosomes as biomarkers for UM. In particular, we discuss the potential of these biomarkers to aid clinical decision making throughout the management of UM patients.
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Affiliation(s)
- Aaron B Beasley
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
- Centre for Precision Health, Edith Cowan University, Joondalup, WA, Australia
| | - Fred K Chen
- Centre for Ophthalmology and Visual Sciences (incorporating Lions Eye Institute), The University of Western Australia, Nedlands, WA, Australia
- Department of Ophthalmology, Royal Perth Hospital, Perth, WA, Australia
- Department of Ophthalmology, Perth Children's Hospital, Perth, WA, Australia
| | - Timothy W Isaacs
- Centre for Ophthalmology and Visual Sciences (incorporating Lions Eye Institute), The University of Western Australia, Nedlands, WA, Australia
- Department of Ophthalmology, Royal Perth Hospital, Perth, WA, Australia
- Perth Retina, West Leederville, WA, Australia
| | - Elin S Gray
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia.
- Centre for Precision Health, Edith Cowan University, Joondalup, WA, Australia.
- Centre for Ophthalmology and Visual Sciences (incorporating Lions Eye Institute), The University of Western Australia, Nedlands, WA, Australia.
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Lin W, Beasley AB, Ardakani NM, Denisenko E, Calapre L, Jones M, Wood BA, Warburton L, Forrest ARR, Gray ES. Intra- and intertumoral heterogeneity of liver metastases in a patient with uveal melanoma revealed by single-cell RNA sequencing. Cold Spring Harb Mol Case Stud 2021; 7:mcs.a006111. [PMID: 34470851 PMCID: PMC8559622 DOI: 10.1101/mcs.a006111] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 08/27/2021] [Indexed: 02/07/2023] Open
Abstract
Tumor heterogeneity is a major obstacle to the success of cancer treatment. An accurate understanding and recognition of tumor heterogeneity is critical in the clinical management of cancer patients. Here, we utilized single-cell RNA sequencing (scRNA-seq) to uncover the intra- and intertumoral heterogeneity of liver metastases from a patient with metastatic uveal melanoma. The two metastases analyzed were largely infiltrated by noncancerous cells with significant variability in the proportion of different cell types. Analysis of copy-number variations (CNVs) showed gain of 8q and loss of 6q in both tumors, but loss of Chromosome 3 was only detected in one of the tumors. Single-nucleotide polymorphism (SNP) array revealed a uniparental isodisomy 3 in the tumor with two copies of Chromosome 3, indicating a regain of Chromosome 3 during the development of the metastatic disease. In addition, both tumors harbored subclones with additional CNVs. Pathway enrichment analysis of differentially expressed genes revealed that cancer cells in the metastasis with isodisomy 3 showed up-regulation in epithelial-mesenchymal transition and myogenesis related genes. In contrast, up-regulation in interferon signaling was observed in the metastasis with monosomy 3 and increased T-cell infiltrate. This study highlights the complexity and heterogeneity of different metastases within an individual case of uveal melanoma.
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Affiliation(s)
- Weitao Lin
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia 6027, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia 6027, Australia.,Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, the University of Western Australia, Nedlands, Western Australia 6009, Australia
| | - Aaron B Beasley
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia 6027, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia 6027, Australia
| | - Nima Mesbah Ardakani
- Department of Anatomical Pathology, PathWest, QEII Medical Centre, Nedlands, Western Australia 6009, Australia.,School of Pathology and Laboratory Medicine, the University of Western Australia, Crawley, Western Australia 6009, Australia.,College of Science, Health, Engineering and Education, Murdoch University, Murdoch, Western Australia 6150, Australia
| | - Elena Denisenko
- Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, the University of Western Australia, Nedlands, Western Australia 6009, Australia
| | - Leslie Calapre
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia 6027, Australia
| | - Matthew Jones
- Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, the University of Western Australia, Nedlands, Western Australia 6009, Australia
| | - Benjamin A Wood
- Department of Anatomical Pathology, PathWest, QEII Medical Centre, Nedlands, Western Australia 6009, Australia.,School of Pathology and Laboratory Medicine, the University of Western Australia, Crawley, Western Australia 6009, Australia
| | - Lydia Warburton
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia 6027, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia 6027, Australia.,Department of Medical Oncology, Sir Charles Gairdner Hospital, Nedlands, Western Australia 6009, Australia.,Department of Medical Oncology, Fiona Stanley Hospital, Murdoch, Western Australia 6150, Australia
| | - Alistair R R Forrest
- Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, the University of Western Australia, Nedlands, Western Australia 6009, Australia
| | - Elin S Gray
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia 6027, Australia.,School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia 6027, Australia
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