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Beigi YZ, Lanjanian H, Fayazi R, Salimi M, Hoseyni BHM, Noroozizadeh MH, Masoudi-Nejad A. Heterogeneity and molecular landscape of melanoma: implications for targeted therapy. MOLECULAR BIOMEDICINE 2024; 5:17. [PMID: 38724687 PMCID: PMC11082128 DOI: 10.1186/s43556-024-00182-2] [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: 11/19/2023] [Accepted: 04/08/2024] [Indexed: 05/12/2024] Open
Abstract
Uveal cancer (UM) offers a complex molecular landscape characterized by substantial heterogeneity, both on the genetic and epigenetic levels. This heterogeneity plays a critical position in shaping the behavior and response to therapy for this uncommon ocular malignancy. Targeted treatments with gene-specific therapeutic molecules may prove useful in overcoming radiation resistance, however, the diverse molecular makeups of UM call for a patient-specific approach in therapy procedures. We need to understand the intricate molecular landscape of UM to develop targeted treatments customized to each patient's specific genetic mutations. One of the promising approaches is using liquid biopsies, such as circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA), for detecting and monitoring the disease at the early stages. These non-invasive methods can help us identify the most effective treatment strategies for each patient. Single-cellular is a brand-new analysis platform that gives treasured insights into diagnosis, prognosis, and remedy. The incorporation of this data with known clinical and genomics information will give a better understanding of the complicated molecular mechanisms that UM diseases exploit. In this review, we focused on the heterogeneity and molecular panorama of UM, and to achieve this goal, the authors conducted an exhaustive literature evaluation spanning 1998 to 2023, using keywords like "uveal melanoma, "heterogeneity". "Targeted therapies"," "CTCs," and "single-cellular analysis".
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Affiliation(s)
- Yasaman Zohrab Beigi
- Laboratory of System Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Hossein Lanjanian
- Software Engineering Department, Engineering Faculty, Istanbul Topkapi University, Istanbul, Turkey
| | - Reyhane Fayazi
- Laboratory of System Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Mahdieh Salimi
- Department of Medical Genetics, Institute of Medical Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran
| | - Behnaz Haji Molla Hoseyni
- Laboratory of System Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | | | - Ali Masoudi-Nejad
- Laboratory of System Biology and Bioinformatics (LBB), Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
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2
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Martel A, Mograbi B, Romeo B, Gastaud L, Lalvee S, Zahaf K, Fayada J, Nahon-Esteve S, Bonnetaud C, Salah M, Tanga V, Baillif S, Bertolotto C, Lassalle S, Hofman P. Assessment of Different Circulating Tumor Cell Platforms for Uveal Melanoma: Potential Impact for Future Routine Clinical Practice. Int J Mol Sci 2023; 24:11075. [PMID: 37446253 DOI: 10.3390/ijms241311075] [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: 06/02/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/15/2023] Open
Abstract
Liquid biopsy and circulating tumor cell (CTC) screening has gained interest over the last two decades for detecting almost all solid malignancies. To date, the major limitation in terms of the applicability of CTC screening in daily clinical practice is the lack of reproducibility due to the high number of platforms available that use various technologies (e.g., label-dependent versus label-free detection). Only a few studies have compared different CTC platforms. The aim of this study was to compare the efficiency of four commercially available CTC platforms (Vortex (VTX-1), ClearCell FX, ISET, and Cellsearch) for the detection and identification of uveal melanoma cells (OMM 2.3 cell line). Tumor cells were seeded in RPMI medium and venous blood from healthy donors, and then processed similarly using these four platforms. Melan-A immunochemistry was performed to identify tumor cells, except when the Cellsearch device was used (automated identification). The mean overall recovery rates (with mean recovered cells) were 39.2% (19.92), 22.2% (11.31), 8.9% (4.85), and 1.1% (0.20) for the ISET, Vortex (VTX-1), ClearCell FX, and CellSearch platforms, respectively. Although paramount, the recovery rate is not sufficient to assess a CTC platform. Other parameters, such as the purpose for using a platform (diagnosis, genetics, drug sensitivity, or patient-derived xenograft models), reproducibility, purity, user-friendliness, cost-effectiveness, and ergonomics, should also be considered before they can be used in daily clinical practice and are discussed in this article.
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Affiliation(s)
- Arnaud Martel
- Ophthalmology Department, University Hospital of Nice, Cote d'Azur University, 06 000 Nice, France
- Institute for Research on Cancer and Aging, Nice (IRCAN), FHU OncoAge, Cote d'Azur University, 06 000 Nice, France
| | - Baharia Mograbi
- Institute for Research on Cancer and Aging, Nice (IRCAN), FHU OncoAge, Cote d'Azur University, 06 000 Nice, France
| | - Barnabe Romeo
- Institute for Research on Cancer and Aging, Nice (IRCAN), FHU OncoAge, Cote d'Azur University, 06 000 Nice, France
| | - Lauris Gastaud
- Oncology Department, Antoine Lacassagne Cancer Center, 06 000 Nice, France
| | - Salome Lalvee
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Katia Zahaf
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Julien Fayada
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Sacha Nahon-Esteve
- Ophthalmology Department, University Hospital of Nice, Cote d'Azur University, 06 000 Nice, France
- Inserm, Biology and Pathologies of Melanocytes, Team1, Equipe labellisée Ligue 2020 and Equipe labellisée ARC 2019, Centre Méditerranéen de Médecine Moléculaire, 06 100 Nice, France
| | - Christelle Bonnetaud
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Myriam Salah
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Virginie Tanga
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Stéphanie Baillif
- Ophthalmology Department, University Hospital of Nice, Cote d'Azur University, 06 000 Nice, France
| | - Corine Bertolotto
- Inserm, Biology and Pathologies of Melanocytes, Team1, Equipe labellisée Ligue 2020 and Equipe labellisée ARC 2019, Centre Méditerranéen de Médecine Moléculaire, 06 100 Nice, France
| | - Sandra Lassalle
- Institute for Research on Cancer and Aging, Nice (IRCAN), FHU OncoAge, Cote d'Azur University, 06 000 Nice, France
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
| | - Paul Hofman
- Institute for Research on Cancer and Aging, Nice (IRCAN), FHU OncoAge, Cote d'Azur University, 06 000 Nice, France
- Laboratory of Clinical and Experimental Pathology, University Hospital of Nice, FHU OncoAge, Cote d'Azur University, Biobank BB-0033-00025, 06 000 Nice, France
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3
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Herrspiegel C, Plastino F, Lardner E, Seregard S, Williams PA, André H, Stålhammar G. A serum protein signature at the time of Uveal Melanoma diagnosis predicts long-term patient survival. BMC Cancer 2023; 23:277. [PMID: 36973672 PMCID: PMC10044715 DOI: 10.1186/s12885-023-10757-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
PURPOSE To develop a prognostic test based on a single blood sample obtained at the time of uveal melanoma diagnosis. METHODS 83 patients diagnosed with posterior uveal melanoma between 1996 and 2000 were included. Peripheral serum samples were obtained at diagnosis and kept at -80 °C until this analysis. Protein profiling of 84 cancer-related proteins was used to screen for potential biomarkers and a prognostic test that stratifies patients into metastatic risk categories was developed (serUM-Px) in a training cohort and then tested in a validation cohort. RESULTS Low serum leptin levels and high osteopontin levels were found to identify patients with poor prognosis and were therefore selected for inclusion in the final test. In the validation cohort, patient sex and American Joint Committee on Cancer stages were similarly distributed between the low, intermediate, and high metastatic risk categories. With increasing metastatic risk category, patients had shorter metastasis-free- and overall survival, as well as greater cumulative incidence of uveal melanoma-related mortality in competing risk analysis (P = 0.007, 0.018 and 0.029, respectively). In multivariate Cox regression, serUM-Px was an independent predictor of metastasis with tumor size and patient sex as covariates (hazard ratio 3.2, 95% CI 1.5-6.9). CONCLUSIONS A prognostic test based on a single peripheral venous blood sample at the time of uveal melanoma diagnosis stratifies patients into low, intermediate, and high metastatic risk categories. Prospective validation will facilitate its clinical utility.
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Affiliation(s)
- Christina Herrspiegel
- St. Erik Eye Hospital, Eugeniavägen 12, 4078, Stockholm, 171 64, Sweden
- Department of Clinical Neuroscience, Division of Eye and Vision, Karolinska Institutet, Tomtebodavägen 18A, Stockholm, 171 77, Sweden
| | - Flavia Plastino
- Department of Clinical Neuroscience, Division of Eye and Vision, Karolinska Institutet, Tomtebodavägen 18A, Stockholm, 171 77, Sweden
| | - Emma Lardner
- St. Erik Eye Hospital, Eugeniavägen 12, 4078, Stockholm, 171 64, Sweden
| | - Stefan Seregard
- St. Erik Eye Hospital, Eugeniavägen 12, 4078, Stockholm, 171 64, Sweden
- Department of Clinical Neuroscience, Division of Eye and Vision, Karolinska Institutet, Tomtebodavägen 18A, Stockholm, 171 77, Sweden
| | - Pete A Williams
- St. Erik Eye Hospital, Eugeniavägen 12, 4078, Stockholm, 171 64, Sweden
- Department of Clinical Neuroscience, Division of Eye and Vision, Karolinska Institutet, Tomtebodavägen 18A, Stockholm, 171 77, Sweden
| | - Helder André
- Department of Clinical Neuroscience, Division of Eye and Vision, Karolinska Institutet, Tomtebodavägen 18A, Stockholm, 171 77, Sweden
| | - Gustav Stålhammar
- St. Erik Eye Hospital, Eugeniavägen 12, 4078, Stockholm, 171 64, Sweden.
- Department of Clinical Neuroscience, Division of Eye and Vision, Karolinska Institutet, Tomtebodavägen 18A, Stockholm, 171 77, Sweden.
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Parappilly MS, Chin Y, Whalen RM, Anderson AN, Robinson TS, Strgar L, Sutton TL, Conley P, Klocke C, Gibbs SL, Chang YH, Wu G, Wong MH, Skalet AH. Circulating Neoplastic-Immune Hybrid Cells Predict Metastatic Progression in Uveal Melanoma. Cancers (Basel) 2022; 14:cancers14194617. [PMID: 36230539 PMCID: PMC9564048 DOI: 10.3390/cancers14194617] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/15/2022] [Accepted: 09/19/2022] [Indexed: 01/25/2023] Open
Abstract
Background: Uveal melanoma is an aggressive cancer with high metastatic risk. Recently, we identified a circulating cancer cell population that co-expresses neoplastic and leukocyte antigens, termed circulating hybrid cells (CHCs). In other cancers, CHCs are more numerous and better predict oncologic outcomes compared to circulating tumor cells (CTCs). We sought to investigate the potential of CHCs as a prognostic biomarker in uveal melanoma. Methods: We isolated peripheral blood monocular cells from uveal melanoma patients at the time of primary treatment and used antibodies against leukocyte and melanoma markers to identify and enumerate CHCs and CTCs by immunocytochemistry. Results: Using a multi-marker approach to capture the heterogeneous disseminated tumor cell population, detection of CHCs was highly sensitive in uveal melanoma patients regardless of disease stage. CHCs were detected in 100% of stage I-III uveal melanoma patients (entire cohort, n = 68), whereas CTCs were detected in 58.8% of patients. CHCs were detected at levels statically higher than CTCs across all stages (p = 0.05). Moreover, CHC levels, but not CTCs, predicted 3 year progression-free survival (p < 0.03) and overall survival (p < 0.04). Conclusion: CHCs are a novel and promising prognostic biomarker in uveal melanoma.
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Affiliation(s)
- Michael S. Parappilly
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Yuki Chin
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Riley M. Whalen
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Ashley N. Anderson
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Trinity S. Robinson
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Luke Strgar
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97201, USA
- Department of Computational Biology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Thomas L. Sutton
- Department of Surgery, Oregon Health & Science University, Portland, OR 97239, USA
| | - Patrick Conley
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Christopher Klocke
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR 97239, USA
| | - Summer L. Gibbs
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97201, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
| | - Young Hwan Chang
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97201, USA
- Department of Computational Biology, Oregon Health & Science University, Portland, OR 97239, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
| | - Guanming Wu
- Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University, Portland, OR 97239, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
| | - Melissa H. Wong
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
- Correspondence: (M.H.W.); (A.H.S.)
| | - Alison H. Skalet
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
- Casey Eye Institute, Oregon Health & Science University, Portland, OR 97239, USA
- Correspondence: (M.H.W.); (A.H.S.)
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5
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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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6
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Garrido Castillo LN, Mejean A, Vielh P, Anract J, Decina A, Nalpas B, Benali-Furet N, Desitter I, Paterlini-Bréchot P. Predictive Value of Circulating Tumor Cells Detected by ISET® in Patients with Non-Metastatic Prostate Cancer Undergoing Radical Prostatectomy. Life (Basel) 2022; 12:life12020165. [PMID: 35207452 PMCID: PMC8877346 DOI: 10.3390/life12020165] [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: 01/10/2022] [Revised: 01/18/2022] [Accepted: 01/20/2022] [Indexed: 11/16/2022] Open
Abstract
There is an unmet need for reliable biomarkers to predict prostate cancer recurrence after prostatectomy in order to better guide the choice of surgical treatment. We have evaluated the predictive value of the preoperative detection of Circulating Tumor Cells (CTC) for prostate cancer recurrence after surgery. A cohort of 108 patients with non-metastatic prostate adenocarcinoma undergoing radical prostatectomy was tested for the presence of CTC before prostatectomy using ISET®. Disease recurrence was assessed by the increase in serum PSA level after prostatectomy. The following factors were assessed for statistical association with prostate cancer recurrence: the presence of CTC, serum PSA, Gleason score, and pT stage using univariate and multivariate analyses, with a mean follow-up of 34.9 months. Prostate cancer recurrence was significantly associated with the presence of at least 1 CTC at the preoperative time point (p < 0.001; Predictive value = 0.83). Conversely, the absence of prostate cancer recurrence was significantly associated with the lack of CTC detection at diagnosis (Predictive value = 1). Our multivariate analysis shows that only CTC presence is an independent risk factor associated with prostate cancer recurrence after prostatectomy (p < 0.001). Our results suggest that CTC detection by ISET® before surgery is an interesting candidate predictive marker for cancer recurrence in patients with non-metastatic PCa.
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Affiliation(s)
- Laura Nalleli Garrido Castillo
- Institut Necker Enfants Malades (INEM), INSERM U1151, Faculté de Médecine, Université de Paris, 75015 Paris, France; (L.N.G.C.); (J.A.)
- INSERM U807, Faculté de Médecine, Université de Paris, 75015 Paris, France;
| | - Arnaud Mejean
- Service d’Urologie, Hôpital Européen Georges Pompidou, 75015 Paris, France;
| | - Philippe Vielh
- Medipath and American Hospital of Paris, 92200 Paris, France;
| | - Julien Anract
- Institut Necker Enfants Malades (INEM), INSERM U1151, Faculté de Médecine, Université de Paris, 75015 Paris, France; (L.N.G.C.); (J.A.)
- Service d’Urologie, Hôpital Cochin, 75005 Paris, France
| | | | - Bertrand Nalpas
- Service d’addictologie, Université de Montpellier, 34090 Montpellier, France;
| | | | | | - Patrizia Paterlini-Bréchot
- Institut Necker Enfants Malades (INEM), INSERM U1151, Faculté de Médecine, Université de Paris, 75015 Paris, France; (L.N.G.C.); (J.A.)
- Rarecells Diagnostics, 75280 Paris, France; (A.D.); (I.D.)
- Laboratoires de Biochimie Hôpital Necker-Enfants Malades, 75015 Paris, France
- Correspondence:
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7
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Barbagallo C, Platania CBM, Drago F, Barbagallo D, Di Pietro C, Purrello M, Bucolo C, Ragusa M. Do Extracellular RNAs Provide Insight into Uveal Melanoma Biology? Cancers (Basel) 2021; 13:5919. [PMID: 34885029 PMCID: PMC8657116 DOI: 10.3390/cancers13235919] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 12/12/2022] Open
Abstract
Uveal melanoma (UM) is the most common primary intraocular malignant tumor in adults, showing a high mortality due to metastasis. Although it is considered a rare disease, a growing number of papers have reported altered levels of RNAs (i.e., coding and non-coding RNAs) in cancerous tissues and biological fluids from UM patients. The presence of circulating RNAs, whose dysregulation is associated with UM, paved the way to the possibility of exploiting it for diagnostic and prognostic purposes. However, the biological meaning and the origin of such RNAs in blood and ocular fluids of UM patients remain unexplored. In this review, we report the state of the art of circulating RNAs in UM and debate whether the amount and types of RNAs measured in bodily fluids mirror the RNA alterations from source cancer cells. Based on literature data, extracellular RNAs in UM patients do not represent, with rare exceptions, a snapshot of RNA dysregulations occurring in cancerous tissues, but rather the complex and heterogeneous outcome of a systemic dysfunction, including immune system activity, that modifies the mechanisms of RNA delivery from several cell types.
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Affiliation(s)
- Cristina Barbagallo
- Department of Biomedical and Biotechnological Sciences—Section of Biology and Genetics, University of Catania, 95123 Catania, Italy; (C.B.); (D.B.); (C.D.P.); (M.P.); (M.R.)
- Department of Clinical and Experimental Medicine, University of Catania, 95123 Catania, Italy
| | - Chiara Bianca Maria Platania
- Department of Biomedical and Biotechnological Sciences—Section of Pharmacology, University of Catania, 95123 Catania, Italy; (C.B.M.P.); (F.D.)
| | - Filippo Drago
- Department of Biomedical and Biotechnological Sciences—Section of Pharmacology, University of Catania, 95123 Catania, Italy; (C.B.M.P.); (F.D.)
- Center of Research in Ocular Pharmacology—CERFO, University of Catania, 95123 Catania, Italy
| | - Davide Barbagallo
- Department of Biomedical and Biotechnological Sciences—Section of Biology and Genetics, University of Catania, 95123 Catania, Italy; (C.B.); (D.B.); (C.D.P.); (M.P.); (M.R.)
| | - Cinzia Di Pietro
- Department of Biomedical and Biotechnological Sciences—Section of Biology and Genetics, University of Catania, 95123 Catania, Italy; (C.B.); (D.B.); (C.D.P.); (M.P.); (M.R.)
| | - Michele Purrello
- Department of Biomedical and Biotechnological Sciences—Section of Biology and Genetics, University of Catania, 95123 Catania, Italy; (C.B.); (D.B.); (C.D.P.); (M.P.); (M.R.)
| | - Claudio Bucolo
- Department of Biomedical and Biotechnological Sciences—Section of Pharmacology, University of Catania, 95123 Catania, Italy; (C.B.M.P.); (F.D.)
- Center of Research in Ocular Pharmacology—CERFO, University of Catania, 95123 Catania, Italy
| | - Marco Ragusa
- Department of Biomedical and Biotechnological Sciences—Section of Biology and Genetics, University of Catania, 95123 Catania, Italy; (C.B.); (D.B.); (C.D.P.); (M.P.); (M.R.)
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8
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Kamińska P, Buszka K, Zabel M, Nowicki M, Alix-Panabières C, Budna-Tukan J. Liquid Biopsy in Melanoma: Significance in Diagnostics, Prediction and Treatment Monitoring. Int J Mol Sci 2021; 22:9714. [PMID: 34575876 PMCID: PMC8468624 DOI: 10.3390/ijms22189714] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/25/2021] [Accepted: 09/06/2021] [Indexed: 02/06/2023] Open
Abstract
Liquid biopsy is a common term referring to circulating tumor cells and other biomarkers, such as circulating tumor DNA (ctDNA) or extracellular vesicles. Liquid biopsy presents a range of clinical advantages, such as the low invasiveness of the blood sample collection and continuous control of the tumor progression. In addition, this approach enables the mechanisms of drug resistance to be determined in various methods of cancer treatment, including immunotherapy. However, in the case of melanoma, the application of liquid biopsy in patient stratification and therapy needs further investigation. This review attempts to collect all of the relevant and recent information about circulating melanoma cells (CMCs) related to the context of malignant melanoma and immunotherapy. Furthermore, the biology of liquid biopsy analytes, including CMCs, ctDNA, mRNA and exosomes, as well as techniques for their detection and isolation, are also described. The available data support the notion that thoughtful selection of biomarkers and technologies for their detection can contribute to the development of precision medicine by increasing the efficacy of cancer diagnostics and treatment.
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Affiliation(s)
- Paula Kamińska
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.K.); (K.B.); (M.N.)
| | - Karolina Buszka
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.K.); (K.B.); (M.N.)
| | - Maciej Zabel
- Department of Anatomy and Histology, Collegium Medicum, University of Zielona Góra, 65-046 Zielona Góra, Poland;
| | - Michał Nowicki
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.K.); (K.B.); (M.N.)
| | - Catherine Alix-Panabières
- Laboratory of Rare Human Circulating Cells (LCCRH), University Medical Centre of Montpellier, 34093 Montpellier, France;
- CREEC/CANECEV, MIVEGEC (CREES), University of Montpellier, CNRS, IRD, 34000 Montpellier, France
| | - Joanna Budna-Tukan
- Department of Histology and Embryology, Poznan University of Medical Sciences, 60-781 Poznan, Poland; (P.K.); (K.B.); (M.N.)
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9
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Wang MM, Chen C, Lynn MN, Figueiredo CR, Tan WJ, Lim TS, Coupland SE, Chan ASY. Applying Single-Cell Technology in Uveal Melanomas: Current Trends and Perspectives for Improving Uveal Melanoma Metastasis Surveillance and Tumor Profiling. Front Mol Biosci 2021; 7:611584. [PMID: 33585560 PMCID: PMC7874218 DOI: 10.3389/fmolb.2020.611584] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/25/2020] [Indexed: 12/21/2022] Open
Abstract
Uveal melanoma (UM) is the most common primary adult intraocular malignancy. This rare but devastating cancer causes vision loss and confers a poor survival rate due to distant metastases. Identifying clinical and molecular features that portend a metastatic risk is an important part of UM workup and prognostication. Current UM prognostication tools are based on determining the tumor size, gene expression profile, and chromosomal rearrangements. Although we can predict the risk of metastasis fairly accurately, we cannot obtain preclinical evidence of metastasis or identify biomarkers that might form the basis of targeted therapy. These gaps in UM research might be addressed by single-cell research. Indeed, single-cell technologies are being increasingly used to identify circulating tumor cells and profile transcriptomic signatures in single, drug-resistant tumor cells. Such advances have led to the identification of suitable biomarkers for targeted treatment. Here, we review the approaches used in cutaneous melanomas and other cancers to isolate single cells and profile them at the transcriptomic and/or genomic level. We discuss how these approaches might enhance our current approach to UM management and review the emerging data from single-cell analyses in UM.
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Affiliation(s)
- Mona Meng Wang
- Singapore National Eye Centre and Singapore Eye Research Institute, Singapore, Singapore
| | - Chuanfei Chen
- Cytogenetics Laboratory, Department of Molecular Pathology, Singapore General Hospital, Singapore, Singapore
| | - Myoe Naing Lynn
- Singapore National Eye Centre and Singapore Eye Research Institute, Singapore, Singapore
| | - Carlos R. Figueiredo
- MediCity Research Laboratory and Institute of Biomedicine, University of Turku, Turku, Finland
| | - Wei Jian Tan
- A. Menarini Biomarkers Singapore Pte Ltd, Singapore, Singapore
| | - Tong Seng Lim
- A. Menarini Biomarkers Singapore Pte Ltd, Singapore, Singapore
| | - Sarah E. Coupland
- Department of Molecular and Clinical Cancer Medicine, ITM, University of Liverpool, Liverpool, United Kingdom
- Liverpool Clinical Laboratories, Royal Liverpool University Hospital, Liverpool, United Kingdom
| | - Anita Sook Yee Chan
- Singapore National Eye Centre and Singapore Eye Research Institute, Singapore, Singapore
- Duke-Nus Medical School, Singapore, Singapore
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10
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van Poppelen NM, de Bruyn DP, Bicer T, Verdijk R, Naus N, Mensink H, Paridaens D, de Klein A, Brosens E, Kiliҫ E. Genetics of Ocular Melanoma: Insights into Genetics, Inheritance and Testing. Int J Mol Sci 2020; 22:E336. [PMID: 33396957 PMCID: PMC7795687 DOI: 10.3390/ijms22010336] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/04/2020] [Accepted: 12/24/2020] [Indexed: 12/18/2022] Open
Abstract
Ocular melanoma consists of posterior uveal melanoma, iris melanoma and conjunctival melanoma. These malignancies derive from melanocytes in the uveal tract or conjunctiva. The genetic profiles of these different entities differ from each other. In uveal melanoma, GNAQ and GNA11 gene mutations are frequently found and prognosis is based on mutation status of BAP1, SF3B1 and EIF1AX genes. Iris melanoma, also originating from the uvea, has similarities to the genetic makeups of both posterior uveal melanoma (UM) and conjunctival melanoma since mutations in GNAQ and GNA11 are less common and genes involved in conjunctival melanoma such as BRAF have been described. The genetic spectrum of conjunctival melanoma, however, includes frequent mutations in the BRAF, NRAS and TERT promoter genes, which are found in cutaneous melanoma as well. The BRAF status of the tumor is not correlated to prognosis, whereas the TERT promoter gene mutations are. Clinical presentation, histopathological characteristics and copy number alterations are associated with survival in ocular melanoma. Tissue material is needed to classify ocular melanoma in the different subgroups, which creates a need for the use of noninvasive techniques to prognosticate patients who underwent eye preserving treatment.
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Affiliation(s)
- Natasha M. van Poppelen
- Department of Ophthalmology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (D.P.d.B.); (T.B.); (N.N.); (D.P.)
- Department of Clinical Genetics, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (A.d.K.); (E.B.)
| | - Daniël P. de Bruyn
- Department of Ophthalmology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (D.P.d.B.); (T.B.); (N.N.); (D.P.)
- Department of Clinical Genetics, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (A.d.K.); (E.B.)
| | - Tolga Bicer
- Department of Ophthalmology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (D.P.d.B.); (T.B.); (N.N.); (D.P.)
- Department of Ophthalmology, University of Health Sciences Diskapi Training and Research Hospital, Ankara 06330, Turkey
| | - Rob Verdijk
- Department of Pathology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands;
- Department of Pathology, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands
| | - Nicole Naus
- Department of Ophthalmology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (D.P.d.B.); (T.B.); (N.N.); (D.P.)
| | - Hanneke Mensink
- Department of Ophthalmic Oncology, The Rotterdam Eye Hospital, 3011 BH Rotterdam, The Netherlands;
| | - Dion Paridaens
- Department of Ophthalmology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (D.P.d.B.); (T.B.); (N.N.); (D.P.)
- Department of Ophthalmic Oncology, The Rotterdam Eye Hospital, 3011 BH Rotterdam, The Netherlands;
| | - Annelies de Klein
- Department of Clinical Genetics, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (A.d.K.); (E.B.)
| | - Erwin Brosens
- Department of Clinical Genetics, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (A.d.K.); (E.B.)
| | - Emine Kiliҫ
- Department of Ophthalmology, Erasmus Medical Center, 3015 GD Rotterdam, The Netherlands; (N.M.v.P.); (D.P.d.B.); (T.B.); (N.N.); (D.P.)
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11
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Liquid Biopsy for Solid Ophthalmic Malignancies: An Updated Review and Perspectives. Cancers (Basel) 2020; 12:cancers12113284. [PMID: 33172021 PMCID: PMC7694640 DOI: 10.3390/cancers12113284] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 10/29/2020] [Accepted: 11/03/2020] [Indexed: 12/11/2022] Open
Abstract
Simple Summary To date, there is no treatment for metastatic uveal melanoma. Identifying its metastatic spread is essential. Liquid biopsy can identify patients at risk of metastatic spread early. Here, we aim to summarize the current knowledge of liquid biopsy in ophthalmic malignant tumors, including uveal melanoma. Our objective is to establish the current state of liquid biopsy in the ophthalmic field, as well as its perspectives and limitations. Abstract Tissue biopsy is considered the gold standard when establishing a diagnosis of cancer. However, tissue biopsies of intraocular ophthalmic malignancies are hard to collect and are thought to be associated with a non-negligible risk of extraocular dissemination. Recently, the liquid biopsy (LB) has emerged as a viable, non-invasive, repeatable, and promising way of obtaining a diagnosis, prognosis, and theragnosis of patients with solid tumors. LB refers to blood, as well as any human liquid. The natural history of uveal melanoma (UM) and retinoblastoma (RB) are radically opposed. On the one hand, UM is known to disseminate through the bloodstream, and is, therefore, more accessible to systemic venous liquid biopsy. On the other hand, RB rarely disseminates hematogenous, and is, therefore, more accessible to local liquid biopsy by performing an anterior chamber puncture. In this review, we summarize the current knowledge concerning LB in UM, RB, conjunctival tumors, and choroidal metastases. We also develop the current limitations encountered, as well as the perspectives.
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12
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Jin E, Burnier JV. Liquid Biopsy in Uveal Melanoma: Are We There Yet? Ocul Oncol Pathol 2020; 7:1-16. [PMID: 33796511 DOI: 10.1159/000508613] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 05/11/2020] [Indexed: 12/13/2022] Open
Abstract
In the era of precision oncology, major strides are being made to use individual tumor information for clinical decision-making. Differing from traditional biopsy methods, the emerging practice of liquid biopsy provides a minimally invasive way of obtaining tumor cells and derived molecules. Liquid biopsy provides a means to detect and monitor disease progression, recurrence, and treatment response in a noninvasive way, and to potentially complement classical biopsy. Uveal melanoma (UM) is a unique malignancy, with diagnosis heavily reliant on imaging, few repeat biopsies, and a high rate of metastasis, which occurs hematogenously and often many years after diagnosis. In this disease setting, a noninvasive biomarker to detect, monitor, and study the disease in real time could lead to better disease understanding and patient care. While advances have been made in the detection of tumor-disseminated components, sensitivity and specificity remain important challenges. Ambiguity remains in how to interpret current findings and in how liquid biopsy can have a place in clinical practice. Related publications in UM are few compared to other cancers, but with further studies we may be able to uncover more about the biology of disseminated molecules and the mechanisms involved in the progression to metastasis.
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Affiliation(s)
- Eva Jin
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Julia V Burnier
- Cancer Research Program, Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
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13
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Salvianti F, Costanza F, Sonnati G, Pinzani P. Detection and Characterization of Circulating Tumor Cells by Quantitative Real-Time PCR. Methods Mol Biol 2020; 2065:139-151. [PMID: 31578693 DOI: 10.1007/978-1-4939-9833-3_11] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We propose two different approaches involving the use of quantitative real-time PCR for the detection or analysis of circulating tumor cells. In one case cells are indirectly identified through the expression of a marker mRNA, while in the other one cells are enriched by size prior to be submitted to mutational analysis for a specific target. Both methods have been successfully applied to the study of circulating melanoma cells.
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Affiliation(s)
- Francesca Salvianti
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Filomena Costanza
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Gemma Sonnati
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy
| | - Pamela Pinzani
- Department of Experimental and Clinical Biomedical Sciences "Mario Serio", University of Florence, Florence, Italy.
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14
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Uveal melanoma: physiopathology and new in situ-specific therapies. Cancer Chemother Pharmacol 2019; 84:15-32. [DOI: 10.1007/s00280-019-03860-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 05/02/2019] [Indexed: 12/12/2022]
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15
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Sharma A, Stei MM, Fröhlich H, Holz FG, Loeffler KU, Herwig-Carl MC. Genetic and epigenetic insights into uveal melanoma. Clin Genet 2018; 93:952-961. [PMID: 28902406 DOI: 10.1111/cge.13136] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 08/31/2017] [Accepted: 09/04/2017] [Indexed: 12/18/2022]
Abstract
Uveal melanoma (UM) is the most frequent primary intraocular tumor in Caucasian adults and is potentially fatal if metastases develop. While several prognostic genetic changes have been identified in UM, epigenetic influences are now getting closer attention. Recent technological advances have allowed to exam the human genome to a greater extent and have improved our understanding of several diseases including malignant tumors. In this context, there has been tremendous progress in the field of UM pathogenesis. Herein, we review the literature with emphasis on genetic alterations, epigenetic modifications and signaling pathways as well as possible biomarkers in UM. In addition, different research models for UM are discussed. New insights and major challenges are outlined in order to evaluate the current status for this potentially devastating disease.
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Affiliation(s)
- A Sharma
- Department of Ophthalmology, University of Bonn, Bonn, Germany.,Department of Neurology, University of Bonn, Bonn, Germany
| | - M M Stei
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | - H Fröhlich
- Algorithmic Bioinformatics, BIT, University of Bonn, Bonn, Germany.,UCB Biosciences GmbH, Monheim, Germany
| | - F G Holz
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | - K U Loeffler
- Department of Ophthalmology, University of Bonn, Bonn, Germany
| | - M C Herwig-Carl
- Department of Ophthalmology, University of Bonn, Bonn, Germany
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16
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Liu M, Li R, Tang Y, Chang J, Han R, Zhang S, Jiang N, Ma F. New applications of the acridine orange fluorescence staining method: Screening for circulating tumor cells. Oncol Lett 2017; 13:2221-2229. [PMID: 28454384 PMCID: PMC5403171 DOI: 10.3892/ol.2017.5724] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2015] [Accepted: 11/24/2016] [Indexed: 12/14/2022] Open
Abstract
The aim of the present study was to explore use of the acridine orange fluorescence (AO-F) staining method for screening of circulating tumor cells (CTCs) in renal cell carcinoma (RCC) patients. The AO-F positive staining rate of live and dead tumor cells was calculated. The positive staining rate in the live group was 93.4±3.0%, while the dead group failed to emit specific fluorescence. A known number of tumor cells were added to peripheral blood, and the detection sensitivity of the four groups (50, 100, 200 and 500 cells/tube) was 10.2±3.8, 9.2±2.3, 10.8±2.6 and 10.5±1.9%, respectively. The average detection sensitivity of the four groups was 10.16±2.73%. There was a positive correlation between the number of cells that was positively stained with AO-F and the total number cells in the system (χ2=0.959; P<0.001). Subsequently, the AO-F staining method was used to detect positive staining cells in 8 healthy volunteers (control group), and 112 non-metastatic and 27 metastatic RCC patients. The positive staining rate was 13.67% (19/139) in RCC patients, while none of the control group was positive. The AO-F positive staining rate was not significantly different between the metastatic and non-metastatic patients according to age, gender, the pathological pattern, T2/3 (according to the Tumor-Node-Metastasis classification) or Fuhrman grade, while there was a significant difference according to T1. The positive staining rate was 8.93% (10/112) for non-metastatic patients and 33.33% (9/27) for metastatic patients, which showed a significant difference (P<0.05). In 112 non-metastatic and 27 metastatic patients, the positive staining rate was not significantly associated with gender, age, tumor size, the pathological pattern, T classification, Fuhrman grade, the presence of a lesion or metastasis to the lungs. The present study demonstrated that the method of CTC staining with AO-F, which has high reproducibility and specificity, was feasible for identifying CTCs and warrants further study.
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Affiliation(s)
- Min Liu
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Ruizhe Li
- Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Yang Tang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Jiwu Chang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Rong Han
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Shumin Zhang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Ning Jiang
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
| | - Fuling Ma
- Department of Urology, Tianjin Institute of Urology, The Second Hospital of Tianjin Medical University, Tianjin 300211, P.R. China
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17
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Technical Insights into Highly Sensitive Isolation and Molecular Characterization of Fixed and Live Circulating Tumor Cells for Early Detection of Tumor Invasion. PLoS One 2017; 12:e0169427. [PMID: 28060956 PMCID: PMC5218415 DOI: 10.1371/journal.pone.0169427] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 12/16/2016] [Indexed: 12/26/2022] Open
Abstract
Circulating Tumor Cells (CTC) and Circulating Tumor Microemboli (CTM) are Circulating Rare Cells (CRC) which herald tumor invasion and are expected to provide an opportunity to improve the management of cancer patients. An unsolved technical issue in the CTC field is how to obtain highly sensitive and unbiased collection of these fragile and heterogeneous cells, in both live and fixed form, for their molecular study when they are extremely rare, particularly at the beginning of the invasion process. We report on a new protocol to enrich from blood live CTC using ISET® (Isolation by SizE of Tumor/Trophoblastic Cells), an open system originally developed for marker-independent isolation of fixed tumor cells. We have assessed the impact of our new enrichment method on live tumor cells antigen expression, cytoskeleton structure, cell viability and ability to expand in culture. We have also explored the ISET®in vitro performance to collect intact fixed and live cancer cells by using spiking analyses with extremely low number of fluorescent cultured cells. We describe results consistently showing the feasibility of isolating fixed and live tumor cells with a Lower Limit of Detection (LLOD) of one cancer cell per 10 mL of blood and a sensitivity at LLOD ranging from 83 to 100%. This very high sensitivity threshold can be maintained when plasma is collected before tumor cells isolation. Finally, we have performed a comparative next generation sequencing (NGS) analysis of tumor cells before and after isolation from blood and culture. We established the feasibility of NGS analysis of single live and fixed tumor cells enriched from blood by our system. This study provides new protocols for detection and characterization of CTC collected from blood at the very early steps of tumor invasion.
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18
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Rishi P, Koundanya VV, Shields CL. Using risk factors for detection and prognostication of uveal melanoma. Indian J Ophthalmol 2016; 63:110-6. [PMID: 25827540 PMCID: PMC4399118 DOI: 10.4103/0301-4738.154373] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The early detection of malignancy, particularly uveal melanoma, is crucial in protecting visual acuity, salvaging the eye, and preventing metastasis. Risk factors for early detection of uveal melanoma have been clearly delineated in the literature and allow identification of melanoma when it is tiny and simulates a nevus. These factors include thickness >2 mm, presence of subretinal fluid (SRF), symptoms, the orange pigment, margin near optic disc, acoustic hollowness, surrounding halo, and absence of drusen. The importance of early detection is realized when one considers melanoma thickness, as each millimeter increase in melanoma thickness imparts 5% increased risk for metastatic disease. Newer imaging modalities like enhanced depth imaging optical coherence tomography and fundus autoflouroscence facilitate in detection of SRF and orange pigment. Additional molecular biomarkers and cytological features have been identified which can predict the clinical behavior of a small melanocytic lesion. Features that suggest a poor prognosis include higher blood levels of tyrosinase m-RNA, vascular endothelial growth factor, insulin-like growth factor; monosomy 3 and gains in chromosome 8. Management of uveal melanoma includes enucleation (for large), local eye wall resection, brachytherapy, charged particle irradiation, and thermotherapy (for small to medium tumors). Although the role of a good clinical evaluation cannot be underestimated, it is advisable to evaluate the various radiological, molecular, and cytological features, to enhance the accuracy of early diagnosis and improved prognosis.
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Affiliation(s)
- Pukhraj Rishi
- Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, Tamil Nadu, India
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19
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Saakyan SV, Khoroshilova-Maslova IP, Tsygankov АY, Amiryan АG, Isaeva RТ. [Pathological and molecular genetic characteristics in patients with extrabulbar growth of uveal melanoma]. Arkh Patol 2016; 78:20-26. [PMID: 27600778 DOI: 10.17116/patol201678420-26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
AIM to analyze the association of extrabulbar tumor growth with pathological and molecular genetic changes in patients with uveal melanoma (UM). SUBJECTS AND METHODS A total of 134 UM patients aged 22 to 84 years were examined and treated. The mean height of the tumor was 9.2±2.9 mm; the diameter of its base was 15.3±3.5 mm. Enucleation of the affected eye was performed in 97.8% of cases. Spindle-cell (n=61 (45.6%)), mixed cell (n=46 (34.3%)), and epithelioid cell (n=27 (20.1%)) tumors were identified according to their histological structure. Polymerase chain reaction-restriction fragment length polymorphism analysis was used to determine full and partial monosomy of chromosome 3, deletion of the short arm of chromosome 1, and RASSF1A gene methylation (n=134). The patients were divided into two groups: 1) those with extrabulbar growth (EG) (n=12) and 2) those without EG (n=122). RESULTS There was a topographic association between the tumor invasion zone and the largest area of exit of the scleral vessels, along which the tumor invaded: the anterior and posterior segments of the eyeball. The specific features of the invasion pattern of UM were shown: there was its broader invasion in the posterior segment and thinner growing tissue interlayers in the anterior segment. Two UM types stopping the process of UM invasion through the scleral fibrous tunic of the eye were established: 1) that with nodule formation and 2) that with tumor cell dissemination within the episclera. The cellular composition of growing tumor tissue in the episclera was ascertained to differ from the main UM focus in the choroid towards its more atypization. The rate was shown to be significantly lower (20% versus 47.9% for the relatively favorable spindle cell type of UM) in the EG group. The frequency of full or partial chromosome 3 monosomy was significantly higher in the extrabulbar tumor growth group (80% versus 50.4%). CONCLUSION The morphological features of the EG of UM were defined. The use of a statistically significant sample of patients with UM confirmed the favorable course of the tumor in its spindle cell type and the negative role of chromosome 3 monosomy, as well as the relationship to extrabulbar tumor growth.
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Affiliation(s)
- S V Saakyan
- Helmholz Moscow Research Institute of Eye Diseases, Ministry of Health of Russia, Moscow,A.I. Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of Russia, Moscow
| | | | - А Yu Tsygankov
- A.I. Evdokimov Moscow State University of Medicine and Dentistry, Ministry of Health of Russia, Moscow
| | - А G Amiryan
- Helmholz Moscow Research Institute of Eye Diseases, Ministry of Health of Russia, Moscow
| | - R Т Isaeva
- Helmholz Moscow Research Institute of Eye Diseases, Ministry of Health of Russia, Moscow
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20
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Long E, Ilie M, Bence C, Butori C, Selva E, Lalvée S, Bonnetaud C, Poissonnet G, Lacour J, Bahadoran P, Brest P, Gilson E, Ballotti R, Hofman V, Hofman P. High expression of TRF2, SOX10, and CD10 in circulating tumor microemboli detected in metastatic melanoma patients. A potential impact for the assessment of disease aggressiveness. Cancer Med 2016; 5:1022-30. [PMID: 26945789 PMCID: PMC4924359 DOI: 10.1002/cam4.661] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 01/12/2016] [Accepted: 01/13/2016] [Indexed: 01/09/2023] Open
Abstract
Circulating tumors cells (CTCs) can be detected in the blood of metastatic melanoma patients (MMPs) both as isolated circulating tumor cells (iCTCs) and circulating tumor microemboli (CTMs), but their clinical significance remains unknown. The aim of this work was to evaluate the prognostic impact in metastatic cutaneous melanoma of CTMs and iCTCs identified by a cytomorphological approach using the isolation by size of tumor cell (ISET) method. We characterized the phenotype of CTCs using anti-PS100, anti-SOX10, anti-CD10, and anti-TRF2 antibodies. 128 MMPs and 37 control healthy individuals with benign nevi were included in this study. Results were compared to the follow-up of patients. 109/128 (85%) MMPs showed CTCs, 44/128 (34%) with 2 to 6 CTMs and 65/128 (51%) with 4 to 9 iCTCs. PS100 expression was homogeneous in iCTCs and heterogeneous in CTMs. SOX10, CD10, and TRF2 were mainly expressed in CTMs. None of the control subjects demonstrated circulating malignant tumor cells. Overall survival was significantly decreased in patients with CTMs, independently of the therapeutic strategies. In conclusion, the presence of CTMs is an independent predictor of shorter survival from the time of diagnosis of MMPs.
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Affiliation(s)
- Elodie Long
- Institute for Research on Cancer and Aging in Nice (IRCAN) INSERM U1081/CNRS UMR7284University of Nice Sophia AntipolisAntoine Lacassagne Cancer CenterNiceFrance
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
| | - Marius Ilie
- Institute for Research on Cancer and Aging in Nice (IRCAN) INSERM U1081/CNRS UMR7284University of Nice Sophia AntipolisAntoine Lacassagne Cancer CenterNiceFrance
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
- Human BiobankPasteur HospitalBB‐0033‐00025NiceFrance
| | - Coraline Bence
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
| | - Catherine Butori
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
| | - Eric Selva
- Human BiobankPasteur HospitalBB‐0033‐00025NiceFrance
| | - Salomé Lalvée
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
| | | | - Gilles Poissonnet
- Department of SurgeryComprehensive Cancer CenterAntoine LacassagneNiceFrance
| | | | - Philippe Bahadoran
- Department of DermatologyArchet II HospitalNiceFrance
- INSERM U1065 Team 1University of Nice Sophia AntipolisEquipe Labellisée Ligue 2013NiceFrance
| | - Patrick Brest
- Institute for Research on Cancer and Aging in Nice (IRCAN) INSERM U1081/CNRS UMR7284University of Nice Sophia AntipolisAntoine Lacassagne Cancer CenterNiceFrance
| | - Eric Gilson
- Institute for Research on Cancer and Aging in Nice (IRCAN) INSERM U1081/CNRS UMR7284University of Nice Sophia AntipolisAntoine Lacassagne Cancer CenterNiceFrance
- Unit of GeneticsArchet HospitalNiceFrance
| | - Robert Ballotti
- INSERM U1065 Team 1University of Nice Sophia AntipolisEquipe Labellisée Ligue 2013NiceFrance
| | - Véronique Hofman
- Institute for Research on Cancer and Aging in Nice (IRCAN) INSERM U1081/CNRS UMR7284University of Nice Sophia AntipolisAntoine Lacassagne Cancer CenterNiceFrance
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
- Human BiobankPasteur HospitalBB‐0033‐00025NiceFrance
| | - Paul Hofman
- Institute for Research on Cancer and Aging in Nice (IRCAN) INSERM U1081/CNRS UMR7284University of Nice Sophia AntipolisAntoine Lacassagne Cancer CenterNiceFrance
- Laboratory of Clinical and Experimental PathologyPasteur HospitalNiceFrance
- Human BiobankPasteur HospitalBB‐0033‐00025NiceFrance
- Cancer Research Association (ARC) Labelled TeamVillejuifFrance
- “OncoAge” Hospital‐University FederationCHU NiceFrance
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Luchi N, Capretti P, Pazzagli M, Pinzani P. Powerful qPCR assays for the early detection of latent invaders: interdisciplinary approaches in clinical cancer research and plant pathology. Appl Microbiol Biotechnol 2016; 100:5189-204. [PMID: 27112348 DOI: 10.1007/s00253-016-7541-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 04/07/2016] [Accepted: 04/10/2016] [Indexed: 12/29/2022]
Abstract
Latent invaders represent the first step of disease before symptoms occur in the host. Based on recent findings, tumors are considered to be ecosystems in which cancer cells act as invasive species that interact with the native host cell species. Analogously, in plants latent fungal pathogens coevolve within symptomless host tissues. For these reasons, similar detection approaches can be used for an early diagnosis of the invasion process in both plants and humans to prevent or reduce the spread of the disease. Molecular tools based on the evaluation of nucleic acids have been developed for the specific, rapid, and early detection of human diseases. During the last decades, these techniques to assess and quantify the proliferation of latent invaders in host cells have been transferred from the medical field to different areas of scientific research, such as plant pathology. An improvement in molecular biology protocols (especially referring to qPCR assays) specifically designed and optimized for detection in host plants is therefore advisable. This work is a cross-disciplinary review discussing the use of a methodological approach that is employed within both medical and plant sciences. It provides an overview of the principal qPCR tools for the detection of latent invaders, focusing on comparisons between clinical cancer research and plant pathology, and recent advances in the early detection of latent invaders to improve prevention and control strategies.
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Affiliation(s)
- Nicola Luchi
- National Research Council (IPSP-CNR), Institute for Sustainable Plant Protection, Via Madonna del Piano 10, 50019, Sesto Fiorentino Firenze, Italy
| | - Paolo Capretti
- National Research Council (IPSP-CNR), Institute for Sustainable Plant Protection, Via Madonna del Piano 10, 50019, Sesto Fiorentino Firenze, Italy
- Department of Agri-Food Productions and Environmental Sciences (DiSPAA), University of Florence, Piazzale delle Cascine 28, Florence, Italy
| | - Mario Pazzagli
- Department of Clinical, Experimental and Biomedical Sciences, University of Florence, Viale Pieraccini, 6, 50139, Firenze, Italy
| | - Pamela Pinzani
- Department of Clinical, Experimental and Biomedical Sciences, University of Florence, Viale Pieraccini, 6, 50139, Firenze, Italy.
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Salvianti F, Orlando C, Massi D, De Giorgi V, Grazzini M, Pazzagli M, Pinzani P. Tumor-Related Methylated Cell-Free DNA and Circulating Tumor Cells in Melanoma. Front Mol Biosci 2016; 2:76. [PMID: 26779490 PMCID: PMC4705904 DOI: 10.3389/fmolb.2015.00076] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 12/14/2015] [Indexed: 12/18/2022] Open
Abstract
Solid tumor release into the circulation cell-free DNA (cfDNA) and circulating tumor cells (CTCs) which represent promising biomarkers for cancer diagnosis. Circulating tumor DNA may be studied in plasma from cancer patients by detecting tumor specific alterations, such as genetic or epigenetic modifications. Ras association domain family 1 isoform A (RASSF1A) is a tumor suppressor gene silenced by promoter hypermethylation in a variety of human cancers including melanoma. The aim of the present study was to assess the diagnostic performance of a tumor-related methylated cfDNA marker in melanoma patients and to compare this parameter with the presence of CTCs. RASSF1A promoter methylation was quantified in cfDNA by qPCR in a consecutive series of 84 melanoma patients and 68 healthy controls. In a subset of 68 cases, the presence of CTCs was assessed by a filtration method (Isolation by Size of Epithelial Tumor Cells, ISET) as well as by an indirect method based on the detection of tyrosinase mRNA by RT-qPCR. The distribution of RASSF1A methylated cfDNA was investigated in cases and controls and the predictive capability of this parameter was assessed by means of the area under the ROC curve (AUC). The percentage of cases with methylated RASSF1A promoter in cfDNA was significantly higher in each class of melanoma patients (in situ, invasive and metastatic) than in healthy subjects (Pearson chi-squared test, p < 0.001). The concentration of RASSF1A methylated cfDNA in the subjects with a detectable quantity of methylated alleles was significantly higher in melanoma patients than in controls. The biomarker showed a good predictive capability (in terms of AUC) in discriminating between melanoma patients and healthy controls. This epigenetic marker associated to cfDNA did not show a significant correlation with the presence of CTCs, but, when the two parameters are jointly considered, we obtain a higher sensitivity of the detection of positive cases in invasive and metastatic melanomas. Our data suggest that cell-free tumor DNA and CTCs represent two complementary aspects of the liquid biopsy which may improve the diagnosis and the clinical management of melanoma patients.
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Affiliation(s)
- Francesca Salvianti
- Department of Clinical, Experimental and Biomedical Sciences, University of Florence Florence, Italy
| | - Claudio Orlando
- Department of Clinical, Experimental and Biomedical Sciences, University of Florence Florence, Italy
| | - Daniela Massi
- Division of Pathology, Department of Surgery and Translational Medicine, University of Florence Florence, Italy
| | - Vincenzo De Giorgi
- Division of Dermatology, Department of Surgery and Traslational Medicine, University of Florence Florence, Italy
| | - Marta Grazzini
- Division of Dermatology, Department of Surgery and Traslational Medicine, University of Florence Florence, Italy
| | - Mario Pazzagli
- Department of Clinical, Experimental and Biomedical Sciences, University of Florence Florence, Italy
| | - Pamela Pinzani
- Department of Clinical, Experimental and Biomedical Sciences, University of Florence Florence, Italy
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Khoja L, Lorigan P, Dive C, Keilholz U, Fusi A. Circulating tumour cells as tumour biomarkers in melanoma: detection methods and clinical relevance. Ann Oncol 2015; 26:33-39. [PMID: 24907634 DOI: 10.1093/annonc/mdu207] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Circulating tumour cells (CTCs) are cells of solid tumour origin detectable in the peripheral blood. Their occurrence is considered a prerequisite step for establishing distant metastases. Metastatic melanoma was the first malignancy in which CTCs were detected and numerous studies have been published on CTC detection in melanoma at various stages of disease. In spite of this, there is no general consensus as to the clinical utility of CTCs in melanoma, largely due to conflicting results from heterogeneous studies and discrepancies in methods of detection between studies. In this review, we examine the possible clinical significance of CTCs in cutaneous, mucosal and ocular melanoma, focusing on detection methods and prognostic value of CTC detection.
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Affiliation(s)
- L Khoja
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester
| | - P Lorigan
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester
| | - C Dive
- Clinical and Experimental Pharmacology, The Paterson Institute for Cancer Research, Manchester, UK
| | - U Keilholz
- Department of Medical Oncology, Charité Comprehensive Cancer Center, Berlin, Germany
| | - A Fusi
- Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester; Department of Medical Oncology, Charité Comprehensive Cancer Center, Berlin, Germany.
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Circulating Tumor Cells: Who is the Killer? CANCER MICROENVIRONMENT 2014; 7:161-76. [PMID: 25527469 PMCID: PMC4275541 DOI: 10.1007/s12307-014-0164-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 11/27/2014] [Indexed: 01/05/2023]
Abstract
This article is a critical note on the subject of Circulating Tumor Cells (CTC). It takes into account the tumor identity of Circulating Tumor Cells as cancer seeds in transit from primary to secondary soils, rather than as a “biomarker”, and considers the help this field could bring to cancer patients. It is not meant to duplicate information already available in a large number of reviews, but to stimulate considerations, further studies and development helping the clinical use of tumor cells isolated from blood as a modern personalized, non-invasive, predictive test to improve cancer patients’ life. The analysis of CTC challenges, methodological bias and critical issues points out to the need of referring to tumor cells extracted from blood without any bias and identified by cytopathological diagnosis as Circulating Cancer Cells (CCC). Finally, this article highlights recent developments and identifies burning questions which should be addressed to improve our understanding of the domain of CCC and their potential to change the clinical practice.
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Chinen LTD, Mello CAL, Abdallah EA, Ocea LM, Buim ME, Breve NM, Gasparini JL, Fanelli MF, Paterlini-Bréchot P. Isolation, detection, and immunomorphological characterization of circulating tumor cells (CTCs) from patients with different types of sarcoma using isolation by size of tumor cells: a window on sarcoma-cell invasion. Onco Targets Ther 2014; 7:1609-17. [PMID: 25258541 PMCID: PMC4172081 DOI: 10.2147/ott.s62349] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Background Sarcomas are rare and heterogeneous neoplasms with poor prognosis that are thought to spread to distant organs mainly by hematogenous dissemination. However, circulating tumor cells (CTCs) have never been visualized in sarcomas. Objectives To investigate the feasibility of using isolation by size of tumor cells (ISET) for isolation, identification, and characterization of CTCs derived from patients with high-grade and metastatic sarcomas. Patients and methods We studied eleven patients with metastatic/recurrent or locally advanced soft-tissue sarcomas (STSs), six of whom had synovial sarcomas. Blood samples (8 mL) were collected from patients with advanced STS and treated by ISET, a marker- independent approach that isolates intact CTCs from blood, based on their larger size compared with leukocytes. CTCs were identified by cytomorphology and characterized by dual-color immunocytochemistry using antivimentin or anti-Pan CK, and anti-CD45. Results All patients with STS included in this study showed CTCs, with numbers ranging from two to 48 per 8 mL of blood. Conclusion This study shows the feasibility of isolating, identifying, and characterizing CTCs from patients with different types of sarcomas and the presence of circulating sarcoma cells in all the tested patients. Our results set the basis for further studies aimed at exploring the presence, number, and immunomolecular characteristics of CTCs in different types of sarcoma, and bring more light to the mechanisms of tumor invasion for these tumors.
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Affiliation(s)
| | - Celso A Lopes Mello
- Department of Clinical Oncology, AC Camargo Cancer Center, São Paulo, Brazil
| | - Emne Ali Abdallah
- International Research Center, AC Camargo Cancer Center, São Paulo, Brazil
| | - Luciana Mm Ocea
- International Research Center, AC Camargo Cancer Center, São Paulo, Brazil
| | - Marcilei E Buim
- International Research Center, AC Camargo Cancer Center, São Paulo, Brazil
| | - Natália M Breve
- International Research Center, AC Camargo Cancer Center, São Paulo, Brazil
| | | | - Marcello F Fanelli
- Department of Clinical Oncology, AC Camargo Cancer Center, São Paulo, Brazil
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Circulating tumor cells detection and counting in uveal melanomas by a filtration-based method. Cancers (Basel) 2014; 6:323-32. [PMID: 24514165 PMCID: PMC3980594 DOI: 10.3390/cancers6010323] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 01/08/2014] [Accepted: 01/09/2014] [Indexed: 12/20/2022] Open
Abstract
Uveal melanoma is one of the most deadly diseases in ophthalmology for which markers able to predict the appearance of metastasis are needed. The study investigates the role of circulating tumor cells (CTC) as a prognostic factor in this disease. We report the detection of circulating tumor cells by Isolation by Size of Epithelial Tumor cells (ISET) in a cohort of 31 uveal melanoma patients: we identified single CTCs or clusters of cells in 17 patients, while the control population, subjects with choroidal nevi, showed no CTC in peripheral blood. The presence of CTCs did not correlate with any clinical and pathological parameter, such as tumor larger basal diameter (LBD), tumor height and TNM. By stratifying patients in groups on the basis of the number of CTC (lower or higher than 10 CTC per 10 mL blood) and the presence of CTC clusters we found a significant difference in LBD (p = 0.019), Tumor height (p = 0.048), disease-free and overall survival (p < 0.05). In conclusion, we confirm the role of CTC as a negative prognostic marker in uveal melanoma patients after a long follow-up period. Further characterization of CTC will help understanding uveal melanoma metastasization and improve patient management.
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Ma YC, Wang L, Yu FL. Recent advances and prospects in the isolation by size of epithelial tumor cells (ISET) methodology. Technol Cancer Res Treat 2013; 12:295-309. [PMID: 23448577 DOI: 10.7785/tcrt.2012.500328] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Current technologies to identify and characterize circulating tumor cells (CTCs) and _ circulating tumor microemboli (CTMs) among hundreds of millions of leukocytes in the bloodstream can be classified into tumor-marker-dependent and -independent technology. Isolation by size of epithelial tumor cells (ISET) is a tumor-marker-independent technology, in which CTCs are isolated by filtration without use of tumor-associated markers, as a result of their large size relative to circulating blood leukocytes. ISET allows cytomorphological, immunocytological, and genetic characterization of CTCs and CTMs. It offers a number of advantages, including retention of cell morphology; non-antigen dependence; amenability of cells to further interrogation by immunolabeling, fluorescence in situ hybridization, and RNA/DNA analysis; ability to isolate CTMs; reliability. Therefore, morphological-analysis-based and antigen-independent ISET methodology can yield more accurate and objective characterization of epithelial-mesenchymal transition. We can evaluate efficacy of _chemotherapy and radiotherapy and other cancer-targeting therapies by using xenografts that are suitable models for mechanistic studies of ISET-isolated CTC/CTM biology. In addition, a new _ISET-based device could be designed to increase sensitivity to CTCs/CTMs greatly and reduce the number of CTCs/CTMs directly during the blood flow, thus decreasing the _possibility of tumor recurrence and metastasis while retaining normal blood cells. This article reviews recent advances and prospects in ISET methodology and provides new insights into ISET methodology, with important implications for the clinical management of cancer patients.
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Affiliation(s)
- Yu-Chao Ma
- Department of Cardio-Thoracic _Surgery, Second Xiangya Hospital of Central South University, No. 139 _Renmin Middle Road, Changsha, _Hunan 410012, China.
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Jatana KR, Lang JC, Chalmers JJ. Identification of circulating tumor cells: a prognostic marker in squamous cell carcinoma of the head and neck? Future Oncol 2011; 7:481-4. [PMID: 21463135 DOI: 10.2217/fon.11.19] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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Papastefanou VP, Cohen VML. Uveal melanoma. J Skin Cancer 2011; 2011:573974. [PMID: 21773036 PMCID: PMC3135138 DOI: 10.1155/2011/573974] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 04/20/2011] [Accepted: 04/28/2011] [Indexed: 01/27/2023] Open
Abstract
Uveal melanoma is the most common primary intraocular malignancy and the leading primary intraocular disease which can be fatal in adults. In this paper epidemiologic, pathogenetic, and clinical aspects of uveal melanoma are discussed. Despite the advance in local ocular treatments, there has been no change in patient survival for three decades. Development of metastases affects prognosis significantly. Current survival rates, factors predictive of metastatic potential and metastatic screening algorithms are discussed. Proposed and emerging treatments for uveal melanoma metastases are also overviewed. Current advances in genetics and cytogenetics have provided a significant insight in tumours with high metastatic potential and the molecular mechanisms that underlie their development. Biopsy of those lesions may prove to be important for prognostication and to allow further research into genetic mutations and potential new therapeutic targets in the future.
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Affiliation(s)
- Vasilios P. Papastefanou
- Ocular Oncology Service, Moorfields Eye Hospital, London EC1V 2PD, UK
- Ocular Oncology Service, St Bartholomew's Hospital, London EC1A 7BE, UK
| | - Victoria M. L. Cohen
- Ocular Oncology Service, Moorfields Eye Hospital, London EC1V 2PD, UK
- Ocular Oncology Service, St Bartholomew's Hospital, London EC1A 7BE, UK
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Abstract
DNA, mRNA and microRNA are released and circulate in the blood of cancer patients. Changes in the levels of circulating nucleic acids have been associated with tumour burden and malignant progression. In the past decade a wealth of information indicating the potential use of circulating nucleic acids for cancer screening, prognosis and monitoring of the efficacy of anticancer therapies has emerged. In this Review, we discuss these findings with a specific focus on the clinical utility of cell-free nucleic acids as blood biomarkers.
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Affiliation(s)
- Heidi Schwarzenbach
- Institute of Tumour Biology, Center of Experimental Medicine, University Medical Center Hamburg-Eppendorf, Hamburg 20246, Germany
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