301
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Peitzsch C, Tyutyunnykova A, Pantel K, Dubrovska A. Cancer stem cells: The root of tumor recurrence and metastases. Semin Cancer Biol 2017; 44:10-24. [DOI: 10.1016/j.semcancer.2017.02.011] [Citation(s) in RCA: 191] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 02/26/2017] [Accepted: 02/27/2017] [Indexed: 12/11/2022]
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302
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Francart ME, Lambert J, Vanwynsberghe AM, Thompson EW, Bourcy M, Polette M, Gilles C. Epithelial-mesenchymal plasticity and circulating tumor cells: Travel companions to metastases. Dev Dyn 2017; 247:432-450. [PMID: 28407379 DOI: 10.1002/dvdy.24506] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/29/2017] [Accepted: 03/29/2017] [Indexed: 12/11/2022] Open
Abstract
Epithelial-mesenchymal transitions (EMTs) associated with metastatic progression may contribute to the generation of hybrid phenotypes capable of plasticity. This cellular plasticity would provide tumor cells with an increased potential to adapt to the different microenvironments encountered during metastatic spread. Understanding how EMT may functionally equip circulating tumor cells (CTCs) with an enhanced competence to survive in the bloodstream and niche in the colonized organs has thus become a major cancer research axis. We summarize here clinical data with CTC endpoints involving EMT. We then review the work functionally linking EMT programs to CTC biology and deciphering molecular EMT-driven mechanisms supporting their metastatic competence. Developmental Dynamics 247:432-450, 2018. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Marie-Emilie Francart
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Justine Lambert
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Aline M Vanwynsberghe
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Erik W Thompson
- Institute of Health and Biomedical Innovation and School of Biomedical Sciences, Queensland University of Technology, and Translational Research Institute Brisbane, and University of Melbourne Department of Surgery, St Vincent's Hospital, Melbourne, Australia
| | - Morgane Bourcy
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
| | - Myriam Polette
- Inserm UMR-S 903, University of Reims Champagne-Ardenne, Biopathology Laboratory, CHU of Reims, Reims, France
| | - Christine Gilles
- GIGA-Cancer, Laboratory of Tumor and Development Biology, University of Liège, Liège, Belgium
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303
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Ulz P, Heitzer E, Geigl JB, Speicher MR. Patient monitoring through liquid biopsies using circulating tumor DNA. Int J Cancer 2017; 141:887-896. [PMID: 28470712 DOI: 10.1002/ijc.30759] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/25/2017] [Indexed: 12/30/2022]
Abstract
Tumors release components such as circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), and tumor-derived extracellular vesicles into the circulation. Multiple studies have demonstrated that molecular information about tumors and metastases can be extracted from these factors, which are therefore frequently referred to as "liquid biopsies." Liquid biopsies allow the longitudinal monitoring of tumor genomes non-invasively and may hence ensure that patients receive appropriate treatments that target the molecular features of their disease. Accordingly, the number of studies employing liquid biopsy based assays has been skyrocketing in the last few years. Here, we focus on three important issues, which are of high relevance for monitoring tumor genomes. First, we analyze the relation between the allele frequency of somatic tumor-specific mutations and the tumor fraction within plasma DNA. Second, we ask how well current tumor evolution models correlate with findings in longitudinal liquid biopsy studies. And, finally, as sensitivity is one of the key challenges of mutation detection, we address the challenge of detecting mutations occurring at very low allele frequencies in plasma DNA.
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Affiliation(s)
- Peter Ulz
- Institute of Human Genetics, Medical University of Graz, Harrachgasse 21/8, Graz, A-8010, Austria
| | - Ellen Heitzer
- Institute of Human Genetics, Medical University of Graz, Harrachgasse 21/8, Graz, A-8010, Austria.,BioTechMed-Graz, Graz, Austria
| | - Jochen B Geigl
- Institute of Human Genetics, Medical University of Graz, Harrachgasse 21/8, Graz, A-8010, Austria
| | - Michael R Speicher
- Institute of Human Genetics, Medical University of Graz, Harrachgasse 21/8, Graz, A-8010, Austria.,BioTechMed-Graz, Graz, Austria
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304
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Abstract
Characterizing and monitoring tumor genomes with blood samples could achieve significant improvements in precision medicine. As tumors shed parts of themselves into the circulation, analyses of circulating tumor cells, circulating tumor DNA, and tumor-derived exosomes, often referred to as "liquid biopsies", may enable tumor genome characterization by minimally invasive means. Indeed, multiple studies have described how molecular information about parent tumors can be extracted from these components. Here, we briefly summarize current technologies and then elaborate on emerging novel concepts that may further propel the field. We address normal and detectable mutation levels in the context of our current knowledge regarding the gradual accumulation of mutations during aging and in light of technological limitations. Finally, we discuss whether liquid biopsies are ready to be used in routine clinical practice.
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Affiliation(s)
- Samantha Perakis
- Institute of Human Genetics, Medical University of Graz, Harrachgasse 21/8, A-8010, Graz, Austria
| | - Michael R Speicher
- Institute of Human Genetics, Medical University of Graz, Harrachgasse 21/8, A-8010, Graz, Austria. .,BioTechMed, Graz, Austria.
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305
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Zhou J, Huang A, Yang XR. Liquid Biopsy and its Potential for Management of Hepatocellular Carcinoma. J Gastrointest Cancer 2017; 47:157-67. [PMID: 26969471 DOI: 10.1007/s12029-016-9801-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE We summarized the recent findings of liquid biopsy in cancer field and discussed its potential utility in hepatocellular carcinoma. METHODS Literature published in MEDLINE, EMBASE, and Science Direct electronic databases was searched and reviewed. RESULTS Liquid biopsy specially referred to the detection of nucleic acids (circulating cell-free DNA, cfDNA) and circulating tumor cells (CTCs) in the blood of cancer patients. Compared to conventional single-site sampling or biopsy method, liquid biopsy had the advantages such as non-invasiveness, dynamic monitoring, and the most important of all, overcoming the limit of spatial and temporal heterogeneity. The genomic information of cancer could be profiled by genotyping cfDNA/CTC and subsequently applied to make molecular classification, targeted therapy guidance, and unveil drug resistance mechanisms. The serial sampling feature of liquid biopsy made it possible to monitor treatment response in a real-time manner and predict tumor metastasis/recurrence in advance. CONCLUSIONS Liquid biopsy is a non-invasive, dynamic, and informative sampling method with important clinical translational significance in cancer research and practice. Much work needs to be done before it is used in the management of HCC.
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Affiliation(s)
- Jian Zhou
- Liver Surgery Department, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 20032, China.
| | - Ao Huang
- Liver Surgery Department, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 20032, China
| | - Xin-Rong Yang
- Liver Surgery Department, Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai, 20032, China
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306
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Detection of Circulating Tumour Cells in Urothelial Cancers and Clinical Correlations: Comparison of Two Methods. DISEASE MARKERS 2017; 2017:3414910. [PMID: 28321147 PMCID: PMC5340956 DOI: 10.1155/2017/3414910] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Accepted: 01/15/2017] [Indexed: 12/21/2022]
Abstract
Circulating tumour cells (CTC) are identified exploiting their protein/gene expression patterns or distinct size compared to blood cells. Data on CTC in bladder cancer (BC) are still scarce. We comparatively analyzed CTC enrichment by AdnaTest ProstateCancerSelect (AT) and ScreenCell®Cyto (SC) kits, combined with identification by EPCAM, MUC1, and ERBB2 expression and by cytological criteria, respectively, in 19 nonmetastatic (M0) and 47 metastatic (M+) BC patients, at baseline (T0) and during treatment (T1). At T0, CTC positivity rates by AT were higher in M+ compared to M0 cases (57.4% versus 25%, p = 0.041). EPCAM was detected in 75% of CTC-positive samples by AT, showing increasing expression levels from T0 to T1 (median (interquartile range, IQR): 0.18 (0.07-0.42) versus 0.84 (0.33-1.84), p = 0.005) in M+ cases. Overall, CTC positivity by SC was around 80% regardless of clinical setting and time point of analysis, except for a lower occurrence at T1 in M0 cases. At T0, circulating tumour microemboli were more frequently (25% versus 8%) detected and more numerous in M+ compared to M0 patients. The approach used for CTC detection impacts the outcome of CTC studies. Further investigations are required to clarify the clinical validity of AT and SC in specific BC clinical contexts.
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307
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Pachmayr E, Treese C, Stein U. Underlying Mechanisms for Distant Metastasis - Molecular Biology. Visc Med 2017; 33:11-20. [PMID: 28785563 DOI: 10.1159/000454696] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The formation of distant metastases constitutes a complex process with a variety of different genes and pathways involved. To improve patient survival, it is necessary to understand the underlying mechanisms of metastasis to allow for targeted intervention. METHODS This review provides an overview of the general concepts of metastasis, focusing on the most important genes and pathways involved and on interventional strategies. RESULTS Cancer cells undergo different steps to form metastasis: most prominently, local invasion, intravasation, survival in the circulation, arrest at a distant organ site and extravasation, micrometastasis formation, and metastatic colonization. In order to pass these steps, different molecular pathways are of major importance: EGF/RAS/RAF/MEK/ERK, PI3K/Akt/mTOR, HGF/Met, Wnt/β-catenin, and VEGF signaling. The HGF/Met regulator MACC1 and the Wnt signaling target S100A4 have been shown to play a major role in the metastatic process. Each gene and pathway provides an opportunity for therapeutic intervention. CONCLUSION Since metastasis represents a highly limiting factor in cancer therapy causing 90% of cancer deaths, it is imperative to reveal the underlying mechanisms. This is fundamental for uncovering prognostic markers and new targeted therapy options.
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Affiliation(s)
- Eva Pachmayr
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Max-Delbrück-Center for Molecular Medicine, Berlin, Germany
| | - Christoph Treese
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Max-Delbrück-Center for Molecular Medicine, Berlin, Germany.,Department of Gastroenterology, Infectious Diseases, Rheumatology, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany.,Berlin Institute of Health (BIH), Berlin, Germany
| | - Ulrike Stein
- Experimental and Clinical Research Center, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Max-Delbrück-Center for Molecular Medicine, Berlin, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany
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308
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Thiele JA, Bethel K, Králíčková M, Kuhn P. Circulating Tumor Cells: Fluid Surrogates of Solid Tumors. ANNUAL REVIEW OF PATHOLOGY 2017; 12:419-447. [PMID: 28135562 PMCID: PMC7846475 DOI: 10.1146/annurev-pathol-052016-100256] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Evaluation of circulating tumor cells (CTCs) has demonstrated clinical validity as a prognostic tool based on enumeration, but since the introduction of this tool to the clinic in 2004, further clinical utility and widespread adoption have been limited. However, immense efforts have been undertaken to further the understanding of the mechanisms behind the biology and kinetics of these rare cells, and progress continues toward better applicability in the clinic. This review describes recent advances within the field, with a particular focus on understanding the biological significance of CTCs, and summarizes emerging methods for identifying, isolating, and interrogating the cells that may provide technical advantages allowing for the discovery of more specific clinical applications. Included is an atlas of high-definition images of CTCs from various cancer types, including uncommon CTCs captured only by broadly inclusive nonenrichment techniques.
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Affiliation(s)
- J-A Thiele
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University in Prague, 323 00 Pilsen, Czech Republic
| | - K Bethel
- Scripps Clinic Medical Group, Scripps Clinic, La Jolla, California 92121
| | - M Králíčková
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University in Prague, 301 00 Pilsen, Czech Republic
| | - P Kuhn
- Bridge Institute, Dornsife College of Letters, Arts and Sciences, University of Southern California, Los Angeles, California 90089;
- Department of Biomedical Engineering, Viterbi School of Engineering, University of Southern California, Los Angeles, California 90089
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309
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Analysis of DNA methylation in single circulating tumor cells. Oncogene 2017; 36:3223-3231. [PMID: 28068321 DOI: 10.1038/onc.2016.480] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Revised: 10/28/2016] [Accepted: 11/15/2016] [Indexed: 01/01/2023]
Abstract
Direct analysis of circulating tumor cells (CTCs) can inform on molecular mechanisms underlying systemic spread. Here we investigated promoter methylation of three genes regulating epithelial-to-mesenchymal transition (EMT), a key mechanism enabling epithelial tumor cells to disseminate and metastasize. For this, we developed a single-cell protocol based on agarose-embedded bisulfite treatment, which allows investigating DNA methylation of multiple loci via a multiplex PCR (multiplexed-scAEBS). We established our assay for the simultaneous analysis of three EMT-associated genes miR-200c/141, miR-200b/a/429 and CDH1 in single cells. The assay was validated in solitary cells of GM14667, MDA-MB-231 and MCF-7 cell lines, achieving a DNA amplification efficiency of 70% with methylation patterns identical to the respective bulk DNA. Then we applied multiplexed-scAEBS to 159 single CTCs from 11 patients with metastatic breast and six with metastatic castration-resistant prostate cancer, isolated via CellSearch (EpCAMpos/CKpos/CD45neg/DAPIpos) and subsequent FACS sorting. In contrast to CD45pos white blood cells isolated and processed by the identical approach, we observed in the isolated CTCs methylation patterns resembling more those of epithelial-like cells. Methylation at the promoter of microRNA-200 family was significantly higher in prostate CTCs. Data from our single-cell analysis revealed an epigenetic heterogeneity among CTCs and indicates tumor-specific active epigenetic regulation of EMT-associated genes during blood-borne dissemination.
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310
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Schreier S, Sawaisorn P, Udomsangpetch R, Triampo W. Advances in rare cell isolation: an optimization and evaluation study. J Transl Med 2017; 15:6. [PMID: 28057026 PMCID: PMC5216602 DOI: 10.1186/s12967-016-1108-1] [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: 08/03/2016] [Accepted: 12/08/2016] [Indexed: 12/31/2022] Open
Abstract
Background Rare nucleated CD45 negative cells in peripheral blood may be malignant such as circulating tumor cells. Untouched isolation thereof by depletion of normal is favored yet still technological challenging. We optimized and evaluated a novel magnetic bead-based negative selection approach for enhanced enrichment of rare peripheral blood nucleated CD45 negative cells and investigated the problem of rare cell contamination during phlebotomy. Methods Firstly, the performance of the magnetic cell separation system was assessed using leukocytes and cultivated fibroblast cells in regard to depletion efficiency and the loss of cells of interest. Secondly, a negative selection assay was optimized for high performance, simplicity and cost efficiency. The negative selection assay consisted of; a RBC lysis step, two depletion cycles comprising direct magnetically labelling of leukocytes using anti-CD45 magnetic beads followed by magnetic capture of leukocytes using a duopole permanent magnet. Thirdly, assay evaluation was aligned to conditions of rare cell frequencies and comprised cell spike recovery, cell viability and proliferation, and CD45 negative cell detection. Additionally, the problem of CD45 negative cell contamination during phlebotomy was investigated. Results The depletion factor and recovery of the negative selection assay measured at most 1600-fold and 96%, respectively, leaving at best 1.5 × 104 leukocytes unseparated and took 35 min. The cell viability was negatively affected by chemical RBC lysis. Proliferation of 100 spiked ovarian cancer cells in culture measured 37% against a positive control. Healthy donor testing revealed findings of nucleated CD45 negative cells ranging from 1 to 22 cells /2.5 × 107 leukocytes or 3.5 mL whole blood in 89% (23/26) of the samples. Conclusion Our assay facilitates high performance at shortest assay time. The enrichment assay itself causes minor harm to cells and allows proliferation. Our findings suggest that rare cell contamination is unavoidable. An unexpected high variety of CD45 negative cells have been detected. It is hypothesized that a rare cell profile may translate into tumor marker independent screening.
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Affiliation(s)
- Stefan Schreier
- Department of Physics, Faculty of Science, Mahidol University, 999 Phuttamonthon 4 Road, Salaya, 73170, Thailand
| | - Piamsiri Sawaisorn
- Faculty of Medical Technology, Mahidol University, 999 Phuttamonthon 4 Road, Salaya, 73170, Thailand
| | - Rachanee Udomsangpetch
- Faculty of Medical Technology, Mahidol University, 999 Phuttamonthon 4 Road, Salaya, 73170, Thailand.
| | - Wannapong Triampo
- Department of Physics, Faculty of Science, Mahidol University, 999 Phuttamonthon 4 Road, Salaya, 73170, Thailand. .,Centre of Excellence in Mathematics, CHE, 328 Si Ayutthaya Road, Bangkok, 10400, Thailand. .,Thailand Center of Excellence in Physics, 328 Si Ayutthaya Road, Bangkok, 10400, Thailand.
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311
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Liu X, Wu X. Utilizing Matrigel Transwell Invasion Assay to Detect and Enumerate Circulating Tumor Cells. Methods Mol Biol 2017; 1634:277-282. [PMID: 28819859 DOI: 10.1007/978-1-4939-7144-2_23] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Metastasis is the cause of 90% of human cancer deaths. Circulating tumor cells (CTCs) in the peripheral blood and/or lymphatic vessels are cells shed from primary tumors and considered to be precursors of metastasis. Study of CTCs allows the serial monitoring of tumor progression and may provide predictive and prognostic biomarkers in clinic. Current CTC isolation and detection technologies encounter several challenges, including: heterogeneity of CTCs, low cell viability and/or high rate of contamination post-isolation, and the inability to distinguish viable/invasive from nonviable/nonfunctional CTCs, all of which can limit in vitro and in vivo characterization of CTCs. Here, we describe a new method to detect and enumerate of CTCs based on their invasive property.
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MESH Headings
- Antibodies, Monoclonal/chemistry
- Antibodies, Monoclonal/metabolism
- Biomarkers, Tumor/genetics
- Biomarkers, Tumor/immunology
- Biomarkers, Tumor/metabolism
- Cell Count
- Cell Line, Tumor
- Cell Movement
- Cell Separation/instrumentation
- Cell Separation/methods
- Cell Survival
- Centrifugation, Density Gradient/methods
- Collagen/chemistry
- Diffusion Chambers, Culture
- Drug Combinations
- Ficoll/chemistry
- Fluorescent Dyes/chemistry
- Humans
- Keratins/genetics
- Keratins/immunology
- Keratins/metabolism
- Laminin/chemistry
- Leukocyte Common Antigens/genetics
- Leukocyte Common Antigens/immunology
- Leukocyte Common Antigens/metabolism
- Microscopy, Fluorescence/methods
- Neoplasms/blood
- Neoplasms/diagnosis
- Neoplasms/immunology
- Neoplasms/pathology
- Neoplastic Cells, Circulating/immunology
- Neoplastic Cells, Circulating/metabolism
- Neoplastic Cells, Circulating/pathology
- Protein Binding
- Proteoglycans/chemistry
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Affiliation(s)
- Xingtong Liu
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Unit No. 1013, Room S7.8336A, Houston, TX, 77030, USA
| | - Xiangwei Wu
- Department of Clinical Cancer Prevention, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Unit No. 1013, Room S7.8336A, Houston, TX, 77030, USA.
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312
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Dasgupta A, Lim AR, Ghajar CM. Circulating and disseminated tumor cells: harbingers or initiators of metastasis? Mol Oncol 2017; 11:40-61. [PMID: 28085223 PMCID: PMC5423226 DOI: 10.1002/1878-0261.12022] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 11/02/2016] [Accepted: 11/04/2016] [Indexed: 12/12/2022] Open
Abstract
Tumor cells leave the primary tumor and enter the circulation. Once there, they are called circulating tumor cells (CTCs). A fraction of CTCs are capable of entering distant sites and persisting as disseminated tumor cells (DTCs). An even smaller fraction of DTCs are capable of progressing toward metastases. It is known that the DTC microenvironment plays an important role in sustaining their survival, regulating their growth, and conferring resistance to therapy. But we still have much to learn about the nature of these rare cell populations to predict which will progress and what exactly should cause concern for future relapse. Although recent technological advances in our ability to detect and molecularly and functionally characterize CTCs and DTCs promise to unravel this ambiguity, the timing of dissemination and the precise source of CTCs and DTCs profiled will impact the conclusions that can be made from these endeavors. In this review, we discuss the biology of CTCs and DTCs; the technologies to detect, isolate, and profile these cells; and the exceptions we must apply to our understanding of what role these cells play in the metastatic process. We conclude that a greater effort to understand the unique biology of these cells in context will positively impact our ability to use these cells to predict outcome, monitor treatment efficacy, and reveal therapeutically relevant targets to deplete these populations and ultimately prevent metastasis.
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Affiliation(s)
- Arko Dasgupta
- Public Health Sciences Division/Translational Research Program and Human Biology DivisionFred Hutchinson Cancer Research CenterSeattleWAUSA
| | - Andrea R. Lim
- Public Health Sciences Division/Translational Research Program and Human Biology DivisionFred Hutchinson Cancer Research CenterSeattleWAUSA
- Program in Molecular and Cellular BiologyUniversity of WashingtonSeattleWAUSA
| | - Cyrus M. Ghajar
- Public Health Sciences Division/Translational Research Program and Human Biology DivisionFred Hutchinson Cancer Research CenterSeattleWAUSA
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313
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Serrano MJ, Alvarez-Cubero MJ, De Miguel Pérez D, Rodríguez-Martínez A, Gonzalez-Herrera L, Robles-Fernandez I, Hernandez JE, Puche JLG, Lorente JA. Significance of EGFR Expression in Circulating Tumor Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 994:285-296. [DOI: 10.1007/978-3-319-55947-6_16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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314
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Molina-Vila MA, Mayo-de-Las-Casas C, Giménez-Capitán A, Jordana-Ariza N, Garzón M, Balada A, Villatoro S, Teixidó C, García-Peláez B, Aguado C, Catalán MJ, Campos R, Pérez-Rosado A, Bertran-Alamillo J, Martínez-Bueno A, Gil MDLL, González-Cao M, González X, Morales-Espinosa D, Viteri S, Karachaliou N, Rosell R. Liquid Biopsy in Non-Small Cell Lung Cancer. Front Med (Lausanne) 2016; 3:69. [PMID: 28066769 PMCID: PMC5179978 DOI: 10.3389/fmed.2016.00069] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 12/08/2016] [Indexed: 12/24/2022] Open
Abstract
Liquid biopsy analyses are already incorporated in the routine clinical practice in many hospitals and oncology departments worldwide, improving the selection of treatments and monitoring of lung cancer patients. Although they have not yet reached its full potential, liquid biopsy-based tests will soon be as widespread as “standard” biopsies and imaging techniques, offering invaluable diagnostic, prognostic, and predictive information. This review summarizes the techniques available for the isolation and analysis of circulating free DNA and RNA, exosomes, tumor-educated platelets, and circulating tumor cells from the blood of cancer patients, presents the methodological challenges associated with each of these materials, and discusses the clinical applications of liquid biopsy testing in lung cancer.
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Affiliation(s)
- Miguel A Molina-Vila
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Clara Mayo-de-Las-Casas
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Ana Giménez-Capitán
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Núria Jordana-Ariza
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Mónica Garzón
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Ariadna Balada
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Sergi Villatoro
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Cristina Teixidó
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Beatriz García-Peláez
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Cristina Aguado
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - María José Catalán
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Raquel Campos
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Ana Pérez-Rosado
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Jordi Bertran-Alamillo
- Laboratory of Oncology, Pangaea Biotech, Quirón Dexeus University Hospital , Barcelona , Spain
| | | | | | - María González-Cao
- Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Xavier González
- Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital , Barcelona , Spain
| | | | - Santiago Viteri
- Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Niki Karachaliou
- Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital , Barcelona , Spain
| | - Rafael Rosell
- Instituto Oncológico Dr Rosell, Quirón Dexeus University Hospital, Barcelona, Spain; Cancer Biology and Precision Medicine Program, Catalan Institute of Oncology, Germans Trias i Pujol Health Sciences Institute and Hospital, Badalona, Spain
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315
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Adler NR, Haydon A, McLean CA, Kelly JW, Mar VJ. Metastatic pathways in patients with cutaneous melanoma. Pigment Cell Melanoma Res 2016; 30:13-27. [PMID: 27900851 DOI: 10.1111/pcmr.12544] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 10/15/2016] [Indexed: 12/21/2022]
Abstract
Metastasis represents the end product of an elaborate biological process, which is determined by a complex interplay between metastatic tumour cells, host factors and homoeostatic mechanisms. Cutaneous melanoma can metastasize haematogenously or lymphogenously. The three predominant models that endeavour to explain the patterns of melanoma progression are the stepwise spread model, the simultaneous spread model and the model of differential spread. The time course to the development of metastases differs between the different metastatic routes. There are several clinical and histopathological risk factors for the different metastatic pathways. In particular, patient sex and the anatomical location of the primary tumour influence patterns of disease progression. There is limited existing evidence regarding the relationship between tumour mutation status, other diagnostic and prognostic biomarkers and the metastatic pathways of primary cutaneous melanoma. This knowledge gap needs to be addressed to better identify patients at high risk of disease recurrence and personalize surveillance strategies.
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Affiliation(s)
- Nikki R Adler
- Victorian Melanoma Service, Alfred Hospital, Melbourne, Vic, Australia.,School of Public Health and Preventive Medicine, Monash University, Alfred Hospital, Melbourne, Vic, Australia
| | - Andrew Haydon
- Victorian Melanoma Service, Alfred Hospital, Melbourne, Vic, Australia.,Department of Medical Oncology, Alfred Hospital, Melbourne, Vic, Australia
| | - Catriona A McLean
- Department of Anatomical Pathology, Alfred Hospital, Melbourne, Vic, Australia
| | - John W Kelly
- Victorian Melanoma Service, Alfred Hospital, Melbourne, Vic, Australia
| | - Victoria J Mar
- Victorian Melanoma Service, Alfred Hospital, Melbourne, Vic, Australia.,School of Public Health and Preventive Medicine, Monash University, Alfred Hospital, Melbourne, Vic, Australia.,Skin and Cancer Foundation, Carlton, Vic, Australia
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316
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Ludwik KA, Campbell JP, Li M, Li Y, Sandusky ZM, Pasic L, Sowder ME, Brenin DR, Pietenpol JA, O'Doherty GA, Lannigan DA. Development of a RSK Inhibitor as a Novel Therapy for Triple-Negative Breast Cancer. Mol Cancer Ther 2016; 15:2598-2608. [PMID: 27528706 PMCID: PMC5807013 DOI: 10.1158/1535-7163.mct-16-0106] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 08/02/2016] [Indexed: 12/19/2022]
Abstract
Metastatic breast cancer is an incurable disease and identification of novel therapeutic opportunities is vital. Triple-negative breast cancer (TNBC) frequently metastasizes and high levels of activated p90RSK (RSK), a downstream MEK-ERK1/2 effector, are found in TNBC. We demonstrate, using direct pharmacologic and genetic inhibition of RSK1/2, that these kinases contribute to the TNBC metastatic process in vivo Kinase profiling showed that RSK1 and RSK2 are the predominant kinases targeted by the new inhibitor, which is based on the natural product SL0101. Further evidence for selectivity was provided by the observations that silencing RSK1 and RSK2 eliminated the ability of the analogue to further inhibit survival or proliferation of a TNBC cell line. In vivo, the new derivative was as effective as the FDA-approved MEK inhibitor trametinib in reducing the establishment of metastatic foci. Importantly, inhibition of RSK1/2 did not result in activation of AKT, which is known to limit the efficacy of MEK inhibitors in the clinic. Our results demonstrate that RSK is a major contributor to the TNBC metastatic program and provide preclinical proof-of-concept for the efficacy of the novel SL0101 analogue in vivo Mol Cancer Ther; 15(11); 2598-608. ©2016 AACR.
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Affiliation(s)
- Katarzyna A Ludwik
- Department of Pathology, Microbiology & Immunology, Vanderbilt University, Nashville, Tennessee
| | - J Preston Campbell
- Department of Pathology, Microbiology & Immunology, Vanderbilt University, Nashville, Tennessee
| | - Mingzong Li
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts
| | - Yu Li
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts
| | - Zachary M Sandusky
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
| | - Lejla Pasic
- Department of Pathology, Microbiology & Immunology, Vanderbilt University, Nashville, Tennessee
| | - Miranda E Sowder
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
| | - David R Brenin
- Department of Surgery, University of Virginia, Charlottesville, Virginia
| | - Jennifer A Pietenpol
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
- Department of Biochemistry, Vanderbilt University, Nashville, Tennessee
- Department of Otolaryngology, Vanderbilt University, Nashville, Tennessee
| | - George A O'Doherty
- Department of Chemistry & Chemical Biology, Northeastern University, Boston, Massachusetts
| | - Deborah A Lannigan
- Department of Pathology, Microbiology & Immunology, Vanderbilt University, Nashville, Tennessee.
- Department of Cancer Biology, Vanderbilt University, Nashville, Tennessee
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317
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Soave A, Riethdorf S, Dahlem R, von Amsberg G, Minner S, Weisbach L, Engel O, Fisch M, Pantel K, Rink M. A nonrandomized, prospective, clinical study on the impact of circulating tumor cells on outcomes of urothelial carcinoma of the bladder patients treated with radical cystectomy with or without adjuvant chemotherapy. Int J Cancer 2016; 140:381-389. [DOI: 10.1002/ijc.30445] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 09/07/2016] [Indexed: 12/29/2022]
Affiliation(s)
- Armin Soave
- Department of Urology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Sabine Riethdorf
- Institute of Tumor Biology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Roland Dahlem
- Department of Urology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Gunhild von Amsberg
- Department of Hematology and Oncology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Sarah Minner
- Department of Pathology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Lars Weisbach
- Department of Urology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Oliver Engel
- Department of Urology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Margit Fisch
- Department of Urology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Klaus Pantel
- Institute of Tumor Biology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
| | - Michael Rink
- Department of Urology; University Medical Center Hamburg-Eppendorf; Hamburg Germany
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318
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Pérez-Callejo D, Romero A, Provencio M, Torrente M. Liquid biopsy based biomarkers in non-small cell lung cancer for diagnosis and treatment monitoring. Transl Lung Cancer Res 2016; 5:455-465. [PMID: 27826527 DOI: 10.21037/tlcr.2016.10.07] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Advances in the knowledge of the biology of non-small cell lung cancer (NSCLC) have revealed molecular information used for systemic cancer therapy targeting metastatic disease, with an important impact on patients overall survival (OS) and quality of life. However, a biopsy of overt metastases is an invasive procedure limited to certain locations and not easily acceptable in the clinic. Moreover, a single biopsy cannot reflect the clonal heterogeneity of the tumor. The analysis of peripheral blood samples of cancer patients represents a new source of cancer-derived material, known as liquid biopsy, and its components can be obtained from almost all body fluids. These components have shown to reflect characteristics of the status of both the primary and metastatic diseases, helping the clinicians to move towards a personalized medicine. The present review focuses on the liquid biopsy components: circulating tumor cells (CTCS), circulating free DNA (cfDNA), exosomes and tumor-educated platelets (TEP); the isolation technologies used and their potential use for non-invasive screening, early diagnosis, prognosis, response to treatment and real time monitoring of the disease, in NSCLC patients.
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Affiliation(s)
- David Pérez-Callejo
- Department of Medical Oncology, Puerta de Hierro Majadahonda University Hospital, Madrid, Spain
| | - Atocha Romero
- Department of Medical Oncology, Puerta de Hierro Majadahonda University Hospital, Madrid, Spain
| | - Mariano Provencio
- Department of Medical Oncology, Puerta de Hierro Majadahonda University Hospital, Madrid, Spain
| | - María Torrente
- Department of Medical Oncology, Puerta de Hierro Majadahonda University Hospital, Madrid, Spain
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319
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Sonnenblick A, Pondé N, Piccart M. Metastatic breast cancer: The Odyssey of personalization. Mol Oncol 2016; 10:1147-59. [PMID: 27430154 PMCID: PMC5423195 DOI: 10.1016/j.molonc.2016.07.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/27/2016] [Accepted: 07/05/2016] [Indexed: 12/31/2022] Open
Abstract
Metastatic breast cancer is the most frequent cause of cancer death for women worldwide. In the last 15 years, a large number of new agents have entered clinical use, a result of the dramatic increase in our understanding of the molecular underpinnings of metastatic breast cancer. However, while these agents have led to better outcomes, they are also at the root cause of increasing financial pressure on healthcare systems. Moreover, decision making in an era where every year new agents are added to the therapeutic armamentarium has also become a significant challenge for medical oncologists. In the present article, we will provide an ample review on the most recent developments in the field of treatment of the different subtypes of metastatic breast cancer with a critical discussion on the slow progress made in identifying response biomarkers. New hopes in the form of ctDNA monitoring and functional imaging will be presented.
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Affiliation(s)
- A Sonnenblick
- Department of Medicine, Institut Jules Bordet, Université Libre de Bruxelles, Boulevard de Waterloo 125, B 1000 Brussels, Belgium; Sharett Institute of Oncology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - N Pondé
- Department of Medicine, Institut Jules Bordet, Université Libre de Bruxelles, Boulevard de Waterloo 125, B 1000 Brussels, Belgium
| | - M Piccart
- Department of Medicine, Institut Jules Bordet, Université Libre de Bruxelles, Boulevard de Waterloo 125, B 1000 Brussels, Belgium.
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320
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Rosell R, Karachaliou N. Implications of Blood-Based T790M Genotyping and Beyond in Epidermal Growth Factor Receptor–Mutant Non–Small-Cell Lung Cancer. J Clin Oncol 2016; 34:3361-2. [DOI: 10.1200/jco.2016.68.3458] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Rafael Rosell
- Hospital Germans Trias i Pujol, Badalona; and Autonomous University of Barcelona, Spain
| | - Niki Karachaliou
- Germans Trias i Pujol Health Sciences Research Institute, Badalona; and University Hospital Sagrat Cor, Barcelona, Spain
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321
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Development and validation of a multiplex methylation specific PCR-coupled liquid bead array for liquid biopsy analysis. Clin Chim Acta 2016; 461:156-64. [DOI: 10.1016/j.cca.2016.08.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2016] [Revised: 07/06/2016] [Accepted: 08/03/2016] [Indexed: 12/21/2022]
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322
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Denis JA, Patroni A, Guillerm E, Pépin D, Benali-Furet N, Wechsler J, Manceau G, Bernard M, Coulet F, Larsen AK, Karoui M, Lacorte JM. Droplet digital PCR of circulating tumor cells from colorectal cancer patients can predict KRAS mutations before surgery. Mol Oncol 2016; 10:1221-31. [PMID: 27311775 PMCID: PMC5423194 DOI: 10.1016/j.molonc.2016.05.009] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 05/13/2016] [Accepted: 05/29/2016] [Indexed: 01/24/2023] Open
Abstract
In colorectal cancer (CRC), KRAS mutations are a strong negative predictor for treatment with the EGFR-targeted antibodies cetuximab and panitumumab. Since it can be difficult to obtain appropriate tumor tissues for KRAS genotyping, alternative methods are required. Circulating tumor cells (CTCs) are believed to be representative of the tumor in real time. In this study we explored the capacity of a size-based device for capturing CTCs coupled with a multiplex KRAS screening assay using droplet digital PCR (ddPCR). We showed that it is possible to detect a mutant ratio of 0.05% and less than one KRAS mutant cell per mL total blood with ddPCR compared to about 0.5% and 50-75 cells for TaqMeltPCR and HRM. Next, CTCs were isolated from the blood of 35 patients with CRC at various stage of the disease. KRAS genotyping was successful for 86% (30/35) of samples with a KRAS codon 12/13 mutant ratio of 57% (17/30). In contrast, only one patient was identified as KRAS mutant when size-based isolation was combined with HRM or TaqMeltPCR. KRAS status was then determined for the 26 available formalin-fixed paraffin-embedded tumors using standard procedures. The concordance between the CTCs and the corresponding tumor tissues was 77% with a sensitivity of 83%. Taken together, the data presented here suggest that is feasible to detect KRAS mutations in CTCs from blood samples of CRC patients which are predictive for those found in the tumor. The minimal invasive nature of this procedure in combination with the high sensitivity of ddPCR might provide in the future an opportunity to monitor patients throughout the course of disease on multiple levels including early detection, prognosis, treatment and relapse as well as to obtain mechanistic insight with respect to tumor invasion and metastasis.
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Affiliation(s)
- Jérôme Alexandre Denis
- Sorbonne Universités, UPMC Univ. Paris 06, F-75005, Paris, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Oncology and Endocrine Biochemistry, Paris, France; Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Institut National de la Santé et de la Recherche Médicale (INSERM) U938, Institut Universitaire de Cancérologie (IUC), Université Pierre et Marie Curie (UPMC), Sorbonne Universities, Paris, France.
| | - Alexia Patroni
- Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Digestive and Hepato-Pancreato-Biliary Surgery, Paris, France
| | - Erell Guillerm
- Sorbonne Universités, UPMC Univ. Paris 06, F-75005, Paris, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Oncogenetics and Molecular Angiogenetics, Paris, France
| | - Dominique Pépin
- Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Oncology and Endocrine Biochemistry, Paris, France
| | | | | | - Gilles Manceau
- Sorbonne Universités, UPMC Univ. Paris 06, F-75005, Paris, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Digestive and Hepato-Pancreato-Biliary Surgery, Paris, France
| | - Maguy Bernard
- Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Oncology and Endocrine Biochemistry, Paris, France
| | - Florence Coulet
- Sorbonne Universités, UPMC Univ. Paris 06, F-75005, Paris, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Oncogenetics and Molecular Angiogenetics, Paris, France
| | - Annette K Larsen
- Cancer Biology and Therapeutics, Centre de Recherche Saint-Antoine, Institut National de la Santé et de la Recherche Médicale (INSERM) U938, Institut Universitaire de Cancérologie (IUC), Université Pierre et Marie Curie (UPMC), Sorbonne Universities, Paris, France
| | - Mehdi Karoui
- Sorbonne Universités, UPMC Univ. Paris 06, F-75005, Paris, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Digestive and Hepato-Pancreato-Biliary Surgery, Paris, France
| | - Jean-Marc Lacorte
- Sorbonne Universités, UPMC Univ. Paris 06, F-75005, Paris, France; Assistance Publique-Hôpitaux de Paris, Pitié-Salpêtrière Hospital, Department of Oncology and Endocrine Biochemistry, Paris, France; INSERM, UMR_S 1166, Institute of Cardiometabolism and Nutrition, ICAN, Paris, France
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323
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Feller SM, Lewitzky M. Hunting for the ultimate liquid cancer biopsy - let the TEP dance begin. Cell Commun Signal 2016; 14:24. [PMID: 27677261 PMCID: PMC5039897 DOI: 10.1186/s12964-016-0147-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 09/19/2016] [Indexed: 12/18/2022] Open
Abstract
Non-protein coding RNAs in different flavors (miRNAs, piRNAs, snoRNAs, lncRNAs, SHOT-RNAs), exosomes, large oncosomes, exoDNA and now tumor-educated platelets (TEPs) have emerged as crucial signal transmitting, transporting and regulating devices of cells in the last two decades. They are also establishing themselves increasingly in the realm of tumor research. We are currently witnessing a mushrooming of candidate entities for diagnostic and prognostic cancer detection and characterization tests that could have a major impact on how this diverse group of diseases is initially spotted and subsequently treated in the near future. But how do the new kids on the block stand up to the more established circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA)? Without question, much earlier disease detection would be expected to save numerous lives. With all these new players around, will we finally win a major battle in the never-ending war against cancer?
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Affiliation(s)
- Stephan M Feller
- Institute of Molecular Medicine, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany.
| | - Marc Lewitzky
- Institute of Molecular Medicine, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
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324
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Pathologists and liquid biopsies: to be or not to be? Virchows Arch 2016; 469:601-609. [PMID: 27553354 DOI: 10.1007/s00428-016-2004-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/25/2016] [Accepted: 08/09/2016] [Indexed: 12/19/2022]
Abstract
Recently, the advent of therapies targeting genomic alterations has improved the care of patients with certain types of cancer. While molecular targets were initially detected in nucleic acid samples extracted from tumor tissue, detection of nucleic acids in circulating blood has allowed the development of what has become known as liquid biopsies, which provide a complementary and alternative sample source allowing identification of genomic alterations that might be addressed by targeted therapy. Consequently, liquid biopsies might rapidly revolutionize oncology practice in allowing administration of more effective treatments. Liquid biopsies also provide an approach towards short-term monitoring of metastatic cancer patients to evaluate efficacy of treatment and/or early detection of secondary mutations responsible for resistance to treatment. In this context, pathologists, who have already been required in recent years to take interest in the domain of molecular pathology of cancer, now face new challenges. The attitude of pathologists to and level of involvement in the practice of liquid biopsies, including mastering the methods employed in molecular analysis of blood samples, need close attention. Regardless of the level of involvement of pathologists in this new field, it is mandatory that oncologists, biologists, geneticists, and pathologists work together to coordinate the pre-analytical, analytical, and post-analytical phases of molecular assessment of tissue and liquid samples of individual cancer patients. The challenges include (1) implementation of effective and efficient procedures for reception and analysis of liquid and tissue samples for histopathological and molecular evaluation and (2) assuring short turn-around times to facilitate rapid optimization of individual patient treatment. In this paper, we will review the following: (1) recent data concerning the concept of liquid biopsies in oncology and its development for patient care, (2) advantages and limitations of molecular analyses performed on blood samples compared to those performed on tissue samples, and (3) short-term challenges facing pathologists in dealing with liquid biopsies of cancer patients and new strategies to early detect metastatic tumor cell clones.
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325
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Gallerani G, Fabbri F. Circulating Tumor Cells in the Adenocarcinoma of the Esophagus. Int J Mol Sci 2016; 17:ijms17081266. [PMID: 27527155 PMCID: PMC5000664 DOI: 10.3390/ijms17081266] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 07/29/2016] [Accepted: 07/30/2016] [Indexed: 02/06/2023] Open
Abstract
Circulating tumor cells (CTCs) are elements of indisputable significance as they seem to be responsible for the onset of metastasis. Despite this, research into CTCs and their clinical application have been hindered by their rarity and heterogeneity at the molecular and cellular level, and also by a lack of technical standardization. Esophageal adenocarcinoma (EAC) is a highly aggressive cancer that is often diagnosed at an advanced stage. Its incidence has increased so much in recent years that new diagnostic, prognostic and predictive biomarkers are urgently needed. Preliminary findings suggest that CTCs could represent an effective, non-invasive, real-time assessable biomarker in all stages of EAC. This review provides an overview of EAC and CTC characteristics and reports the main research results obtained on CTCs in this setting. The need to carry out further basic and translational research in this area to confirm the clinical usefulness of CTCs and to provide oncologists with a tool to improve therapeutic strategies for EAC patients was herein highlighted.
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Affiliation(s)
- Giulia Gallerani
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, Meldola 47014, FC, Italy.
| | - Francesco Fabbri
- Biosciences Laboratory, Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS, Via P. Maroncelli 40, Meldola 47014, FC, Italy.
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326
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Warfarin and coumarin-like Murraya paniculata extract down-regulate EpCAM-mediated cell adhesion: individual components versus mixture for studying botanical metastatic chemopreventives. Sci Rep 2016; 6:30549. [PMID: 27480614 PMCID: PMC4969747 DOI: 10.1038/srep30549] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 07/06/2016] [Indexed: 01/09/2023] Open
Abstract
We recently defined cancer metastatic chemoprevention as utilizing safe and effective molecules to comprehensively prevent the spark of activation-adhesion-extravasation-proliferation metastatic cascade caused by circulating tumor cells (CTCs). The strategy focuses on preventing the most important starting point of the cascade. We identified an extract from a well-known medical plant Murraya paniculata, which inhibited both embryonic implantation to human endometrium as traditionally-used for abortion and CTC adhesion to human endothelium. Here, we separated and characterized five coumarin-containing components (Z1-Z5) from the botanic extract. Flow cytometry revealed that within 1-100 μg/mL, Z3 and Z5 down-regulated EpCAM expression in human colon HCT116, whereas, Z1 and Z2 did oppositely. Warfarin and Z1-Z5 component mixture (CM) also down-regulated EpCAM expression. The down-regulation of EpCAM by Z3, Z5, CM and warfarin was confirmed by western blotting, and caused inhibition on adhesion of cancer cells to human endothelial cells. Rat coagulation study showed that warfarin prolonged prothrombin time, whereas, Z3 did not. The present studies revealed that, for the first time, warfarin and coumarin-like components Z3, Z5 and CM from Murraya paniculata could directly inhibit EpCAM-mediated cell-cell adhesion.
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327
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Yee SS, Lieberman DB, Blanchard T, Rader J, Zhao J, Troxel AB, DeSloover D, Fox AJ, Daber RD, Kakrecha B, Sukhadia S, Belka GK, DeMichele AM, Chodosh LA, Morrissette JJD, Carpenter EL. A novel approach for next-generation sequencing of circulating tumor cells. Mol Genet Genomic Med 2016; 4:395-406. [PMID: 27468416 PMCID: PMC4947859 DOI: 10.1002/mgg3.210] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 02/16/2016] [Accepted: 02/01/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Next-generation sequencing (NGS) of surgically resected solid tumor samples has become integral to personalized medicine approaches for cancer treatment and monitoring. Liquid biopsies, or the enrichment and characterization of circulating tumor cells (CTCs) from blood, can provide noninvasive detection of evolving tumor mutations to improve cancer patient care. However, the application of solid tumor NGS approaches to circulating tumor samples has been hampered by the low-input DNA available from rare CTCs. Moreover, whole genome amplification (WGA) approaches used to generate sufficient input DNA are often incompatible with blood collection tube preservatives used to facilitate clinical sample batching. METHODS To address this, we have developed a novel approach combining tumor cell isolation from preserved blood with Repli-G WGA and Illumina TruSeq Amplicon Cancer Panel-based NGS. We purified cell pools ranging from 10 to 1000 cells from three different cell lines, and quantitatively demonstrate comparable quality of DNA extracted from preserved versus unpreserved samples. RESULTS Preservation and WGA were compatible with the generation of high-quality libraries. Known point mutations and gene amplification were detected for libraries that had been prepared from amplified DNA from preserved blood. CONCLUSION These spiking experiments provide proof of concept of a clinically applicable workflow for real-time monitoring of patient tumor using noninvasive liquid biopsies.
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Affiliation(s)
- Stephanie S. Yee
- Department of MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - David B. Lieberman
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Tatiana Blanchard
- Department of Cancer BiologyUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
- Abramson Family Cancer Research InstituteUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - JulieAnn Rader
- Division of OncologyCenter for Childhood Cancer ResearchChildren's Hospital of PhiladelphiaPhiladelphiaPennsylvania
| | - Jianhua Zhao
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Andrea B. Troxel
- Center for Clinical Epidemiology and BiostatisticsUniversity of PennsylvaniaPhiladelphiaPennsylvania
- Abramson Cancer CenterUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - Daniel DeSloover
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Alan J. Fox
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Robert D. Daber
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Bijal Kakrecha
- Department of MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - Shrey Sukhadia
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - George K. Belka
- Department of Cancer BiologyUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
- Abramson Family Cancer Research InstituteUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - Angela M. DeMichele
- Department of MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
- Abramson Cancer CenterUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - Lewis A. Chodosh
- Department of MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
- Department of Cancer BiologyUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
- Abramson Family Cancer Research InstituteUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
| | - Jennifer J. D. Morrissette
- Department of Pathology and Laboratory MedicineHospital of the University of PennsylvaniaPhiladelphiaPennsylvania
| | - Erica L. Carpenter
- Department of MedicineUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
- Abramson Cancer CenterUniversity of Pennsylvania Perelman School of MedicinePhiladelphiaPennsylvania
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328
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Murlidhar V, Ramnath N, Nagrath S, Reddy RM. Optimizing the Detection of Circulating Markers to Aid in Early Lung Cancer Detection. Cancers (Basel) 2016; 8:cancers8070061. [PMID: 27367729 PMCID: PMC4963803 DOI: 10.3390/cancers8070061] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Revised: 06/08/2016] [Accepted: 06/17/2016] [Indexed: 02/07/2023] Open
Abstract
Improving early detection of lung cancer is critical to improving lung cancer survival. Studies have shown that computerized tomography (CT) screening can reduce mortality from lung cancer, but this involves risks of radiation exposure and can identify non-cancer lung nodules that lead to unnecessary interventions for some. There is a critical need to develop alternative, less invasive methods to identify patients who have early-stage lung cancer. The detection of circulating tumor cells (CTCs) are a promising area of research, but current technology is limited by a low yield of CTCs. Alternate studies are investigating circulating nucleic acids and proteins as possible tumor markers. It is critical to develop innovative methods for early lung cancer detection that may include CTCs or other markers that are low-risk and low-cost, yet specific and sensitive, to facilitate improved survival by diagnosing the disease when it is surgically curable.
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Affiliation(s)
- Vasudha Murlidhar
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Nithya Ramnath
- Division of Hematology/Oncology, Department of Medicine, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Sunitha Nagrath
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Rishindra M Reddy
- Section of Thoracic Surgery, Department of Surgery, University of Michigan, Taubman Center 2120, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA.
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329
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Williams KC, Wong E, Leong HS, Jackson DN, Allan AL, Chambers AF. Cancer dissemination from a physical sciences perspective. CONVERGENT SCIENCE PHYSICAL ONCOLOGY 2016. [DOI: 10.1088/2057-1739/2/2/023001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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330
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Bourcy M, Suarez-Carmona M, Lambert J, Francart ME, Schroeder H, Delierneux C, Skrypek N, Thompson EW, Jérusalem G, Berx G, Thiry M, Blacher S, Hollier BG, Noël A, Oury C, Polette M, Gilles C. Tissue Factor Induced by Epithelial–Mesenchymal Transition Triggers a Procoagulant State That Drives Metastasis of Circulating Tumor Cells. Cancer Res 2016; 76:4270-82. [DOI: 10.1158/0008-5472.can-15-2263] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 04/26/2016] [Indexed: 11/16/2022]
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331
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Cebotaru CL, Olteanu ED, Antone NZ, Buiga R, Nagy V. Circulating tumor cells in germ cell tumors: are those biomarkers of real prognostic value? A review. ACTA ACUST UNITED AC 2016; 89:203-11. [PMID: 27152069 PMCID: PMC4849376 DOI: 10.15386/cjmed-570] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 09/22/2015] [Accepted: 10/03/2015] [Indexed: 12/14/2022]
Abstract
Analysis of circulating tumor cells from patients with different types of cancer is nowadays a fascinating new tool of research and their number is proven to be useful as a prognostic factor in metastatic breast, colon and prostate cancer patients. Studies are going beyond enumeration, exploring the circulating tumor cells to better understand the mechanisms of tumorigenesis, invasion and metastasis and their value for characterization, prognosis and tailoring of treatment. Few studies investigated the prognostic significance of circulating tumor cells in germ cell tumors. In this review, we examine the possible significance of the detection of circulating tumor cells in this setting.
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Affiliation(s)
- Cristina Ligia Cebotaru
- Ion Chiricuta Institute of Oncology, Cluj Napoca, Romania; Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
| | - Elena Diana Olteanu
- Ion Chiricuta Institute of Oncology, Cluj Napoca, Romania; Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
| | | | - Rares Buiga
- Ion Chiricuta Institute of Oncology, Cluj Napoca, Romania
| | - Viorica Nagy
- Ion Chiricuta Institute of Oncology, Cluj Napoca, Romania; Iuliu Hatieganu University of Medicine and Pharmacy, Cluj Napoca, Romania
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332
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Heitzer E, Ulz P, Geigl JB, Speicher MR. Non-invasive detection of genome-wide somatic copy number alterations by liquid biopsies. Mol Oncol 2016; 10:494-502. [PMID: 26778171 PMCID: PMC5528970 DOI: 10.1016/j.molonc.2015.12.004] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 11/26/2015] [Accepted: 12/03/2015] [Indexed: 12/20/2022] Open
Abstract
Liquid biopsies, i.e. the analysis of circulating tumor cells (CTCs) or circulating tumor DNA (ctDNA), are evolving into promising clinical tools. Indeed, a plethora of liquid biopsy technologies to deduce non-invasively characteristics of the tumor genome from the peripheral blood have been developed over the last few years. For example, liquid biopsies have been used to assess the tumor burden, to monitor the evolution of tumor genomes, to unravel mechanisms of resistance, to establish the tumor heterogeneity, and for the identification of prognostic and predictive markers. In this review we focus on methods to establish genome-wide profiles of somatic copy number alterations (SCNAs) from plasma DNA and show how they provide novel insights into the biology of cancer and their impact on the management of patients.
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Affiliation(s)
- Ellen Heitzer
- Medical University of Graz, Institute of Human Genetics, Harrachgasse 21/8, A-8010 Graz, Austria.
| | - Peter Ulz
- Medical University of Graz, Institute of Human Genetics, Harrachgasse 21/8, A-8010 Graz, Austria.
| | - Jochen B Geigl
- Medical University of Graz, Institute of Human Genetics, Harrachgasse 21/8, A-8010 Graz, Austria.
| | - Michael R Speicher
- Medical University of Graz, Institute of Human Genetics, Harrachgasse 21/8, A-8010 Graz, Austria.
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333
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Stoecklein NH, Fischer JC, Niederacher D, Terstappen LWMM. Challenges for CTC-based liquid biopsies: low CTC frequency and diagnostic leukapheresis as a potential solution. Expert Rev Mol Diagn 2015; 16:147-64. [DOI: 10.1586/14737159.2016.1123095] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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334
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Green BJ, Saberi Safaei T, Mepham A, Labib M, Mohamadi RM, Kelley SO. Beyond the Capture of Circulating Tumor Cells: Next-Generation Devices and Materials. Angew Chem Int Ed Engl 2015; 55:1252-65. [PMID: 26643151 DOI: 10.1002/anie.201505100] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Indexed: 12/22/2022]
Abstract
Over the last decade, significant progress has been made towards the development of approaches that enable the capture of rare circulating tumor cells (CTCs) from the blood of cancer patients, a critical capability for noninvasive tumor profiling. These advances have leveraged new insights in materials chemistry and microfluidics and allowed the capture and enumeration of CTCs with unprecedented sensitivity. However, it has become increasingly clear that simply capturing and counting tumor cells launched into the bloodstream may not provide the information needed to advance our understanding of the biology of these rare cells, or to allow us to better exploit them in medicine. A variety of advances have now emerged demonstrating that more information can be extracted from CTCs with next-generation devices and materials featuring tailored physical and chemical properties. In this Minireview, the last ten years of work in this area will be discussed, with an emphasis on the groundbreaking work of the last five years, during which the focus has moved beyond the simple capture of CTCs and gravitated towards approaches that enable in-depth analysis.
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Affiliation(s)
- Brenda J Green
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Tina Saberi Safaei
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON, Canada
| | - Adam Mepham
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada
| | - Mahmoud Labib
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Reza M Mohamadi
- Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada
| | - Shana O Kelley
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, ON, Canada. .,Leslie Dan Faculty of Pharmacy, University of Toronto, Toronto, ON, Canada. .,Department of Biochemistry, University of Toronto, Toronto, ON, Canada.
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335
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Welte T, Yu C, Zhang XHF. Retrieval of Disseminated Tumor Cells Colonizing the Bone in Murine Breast Cancer Metastasis Models. J Mammary Gland Biol Neoplasia 2015; 20:103-8. [PMID: 26490041 PMCID: PMC4863992 DOI: 10.1007/s10911-015-9347-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 10/16/2015] [Indexed: 12/31/2022] Open
Abstract
In breast cancer, the most frequent site of metastasis is bone. Disseminated tumor cells (DTCs) can be detected in the bone marrow of patients by their expression of epithelial oroncogenic markers [1], and the presence and frequency of these DTCs are associated with poor prognosis. However, many of the details behind this process remain elusive, including the biological properties and fates of these apparently indolent cancer cells. To provide pre-clinical models of DTCs, we have developed a procedure that allows for controlled and enhanced delivery of tumor cells to the bone in animal experiments via injection into the iliac artery of the hind limb [2]. To our surprise, we found that most cancer cells became integrated into the solid bone matrix shortly after arriving in the bone, and only a minority can be flushed out with the bone marrow.Here we describe a method that helps to retrieve DTCs homing to the bone in which we achieve an improved recovery of those tumor cells closely associated with the bone microenvironment. In our view it is especially important to analyze these tumor cell subpopulations, as they may take full advantage of growth-, survival- and immune-protective signals provided by neighbor cells. We also show a pilot study on how this approach may be applied to the analysis of cancer dormancy. Our study suggests that the detection and retrieval of DTCs in clinical studies are incomplete because they are conducted exclusively with bone marrow aspirates.
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Affiliation(s)
- Thomas Welte
- Lester and Sue Smith Breast Center, One Baylor Plaza, BCM600, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, One Baylor Plaza, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, One Baylor Plaza, Houston, TX 77030, USA
- Diana Helis Henry Medical Research Foundation, New Orlean, LA 70130, USA
| | - Cuijuan Yu
- Lester and Sue Smith Breast Center, One Baylor Plaza, BCM600, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, One Baylor Plaza, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, One Baylor Plaza, Houston, TX 77030, USA
| | - Xiang H.-F. Zhang
- Lester and Sue Smith Breast Center, One Baylor Plaza, BCM600, Houston, TX 77030, USA
- Dan L. Duncan Cancer Center, One Baylor Plaza, Houston, TX 77030, USA
- Department of Molecular and Cellular Biology, One Baylor Plaza, Houston, TX 77030, USA
- McNair Medical Institute, Baylor College of Medicine, BCM600, One Baylor Plaza, Houston, TX 77030, USA
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336
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Diagnostic technologies for circulating tumour cells and exosomes. Biosci Rep 2015; 36:e00292. [PMID: 26604322 PMCID: PMC4741183 DOI: 10.1042/bsr20150180] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 11/24/2015] [Indexed: 02/06/2023] Open
Abstract
Circulating tumour cells (CTCs) and exosomes are promising circulating biomarkers. They exist in easily accessible blood and carry large diversity of molecular information. As such, they can be easily and repeatedly obtained for minimally invasive cancer diagnosis and monitoring. Because of their intrinsic differences in counts, size and molecular contents, CTCs and exosomes pose unique sets of technical challenges for clinical translation–CTCs are rare whereas exosomes are small. Novel technologies are underway to overcome these specific challenges to fully harness the clinical potential of these circulating biomarkers. Herein, we will overview the characteristics of CTCs and exosomes as valuable circulating biomarkers and their associated technical challenges for clinical adaptation. Specifically, we will describe emerging technologies that have been developed to address these technical obstacles and the unique clinical opportunities enabled by technological innovations.
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337
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Pixberg CF, Schulz WA, Stoecklein NH, Neves RPL. Characterization of DNA Methylation in Circulating Tumor Cells. Genes (Basel) 2015; 6:1053-75. [PMID: 26506390 PMCID: PMC4690028 DOI: 10.3390/genes6041053] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 10/09/2015] [Accepted: 10/14/2015] [Indexed: 02/07/2023] Open
Abstract
Epigenetics contributes to molecular mechanisms leading to tumor cell transformation and systemic progression of cancer. However, the dynamics of epigenetic remodeling during metastasis remains unexplored. In this context, circulating tumor cells (CTCs) might enable a direct insight into epigenetic mechanisms relevant for metastasis by providing direct access to systemic cancer. CTCs can be used as prognostic markers in cancer patients and are regarded as potential metastatic precursor cells. However, despite substantial technical progress, the detection and molecular characterization of CTCs remain challenging, in particular the analysis of DNA methylation. As recent studies have started to address the epigenetic state of CTCs, we discuss here the potential of such investigations to elucidate mechanisms of metastasis and to develop tumor biomarkers.
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Affiliation(s)
- Constantin F Pixberg
- Department of General, Visceral and Pediatric Surgery, University Hospital and Medical Faculty of the Heinrich-Heine University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany.
| | - Wolfgang A Schulz
- Department of Urology, University Hospital and Medical Faculty of the Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
| | - Nikolas H Stoecklein
- Department of General, Visceral and Pediatric Surgery, University Hospital and Medical Faculty of the Heinrich-Heine University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany.
| | - Rui P L Neves
- Department of General, Visceral and Pediatric Surgery, University Hospital and Medical Faculty of the Heinrich-Heine University Düsseldorf, Moorenstr. 5, 40225 Düsseldorf, Germany.
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338
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Ren C, Han C, Fu D, Wang D, Chen H, Chen Y, Shen M. Circulating tumor cells in breast cancer beyond the genotype of primary tumor for tailored therapy. Int J Cancer 2015; 138:1586-600. [PMID: 26178386 DOI: 10.1002/ijc.29679] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Accepted: 06/30/2015] [Indexed: 12/21/2022]
Abstract
Although TNM staging based on tumor, node lymph status and metastasis status-is the most widely used method in the clinic to classify breast cancer (BC) and assess prognosis, it offers limited information for different BC subgroups. Circulating tumor cells (CTCs) are regarded as minimal residual disease and are proven to have a strong relationship with BC. Detection of ≥5 CTCs per 7.5 mL in peripheral blood predicts poor prognosis in metastatic BC irrespective of other clinical parameters, whereas, in early-stage BC, detection of CK19(+) CTCs are also associated with poor prognosis. Increasing data and clinical trials show that CTCs can improve prognostic accuracy and help tailor treatment for patients with BC. However, heterogeneous CTCs in the process of an epithelial-mesenchymal transition (EMT) in BC makes it a challenge to detect these rare cells. Moreover, the genotypic and phenotypic features of CTCs are different from primary BC tumors. Molecular analysis of CTCs in BC may benefit patients by identifying those amenable to tailored therapy. We propose that CTCs should be used alongside the TNM staging system and the genotype of primary tumor to guide tailored BC diagnosis and treatment.
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Affiliation(s)
- Chuanli Ren
- Clinical Medical Testing Laboratory, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, China
- Department of Epidemiology and Biostatistics, Ministry of Education (MOE) Key Laboratory of Modern Toxicology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Chongxu Han
- Clinical Medical Testing Laboratory, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, China
| | - Deyuan Fu
- Breast Oncology Surgery, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, China
| | - Daxin Wang
- Clinical Medical Testing Laboratory, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, China
| | - Hui Chen
- Geriatric Medicine Department, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, China
| | - Yong Chen
- Oncology Department, Northern Jiangsu People's Hospital and Clinical Medical College of Yangzhou University, Yangzhou, China
| | - Ming Shen
- Department of Physical Chemistry, Yangzhou University, Yangzhou, China
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