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Tsoneva DK, Ivanov MN, Vinciguerra M. Liquid Liver Biopsy for Disease Diagnosis and Prognosis. J Clin Transl Hepatol 2023; 11:1520-1541. [PMID: 38161500 PMCID: PMC10752811 DOI: 10.14218/jcth.2023.00040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 05/24/2023] [Accepted: 06/07/2023] [Indexed: 01/03/2024] Open
Abstract
Liver diseases are a major burden worldwide, the scope of which is expected to further grow in the upcoming years. Clinically relevant liver dysfunction-related blood markers such as alanine aminotransferase and aspartate aminotransferase have limited accuracy. Nowadays, liver biopsy remains the gold standard for several liver-related pathologies, posing a risk of complication due to its invasive nature. Liquid biopsy is a minimally invasive approach, which has shown substantial potential in the diagnosis, prognosis, and monitoring of liver diseases by detecting disease-associated particles such as proteins and RNA molecules in biological fluids. Histones are the core components of the nucleosomes, regulating essential cellular processes, including gene expression and DNA repair. Following cell death or activation of immune cells, histones are released in the extracellular space and can be detected in circulation. Histones are stable in circulation, have a long half-life, and retain their post-translational modifications. Here, we provide an overview of the current research on histone-mediated liquid biopsy methods for liver diseases, with a focus on the most common detection methods.
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Affiliation(s)
- Desislava K. Tsoneva
- Department of Medical Genetics, Medical University of Varna, Varna, Bulgaria
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, Varna, Bulgaria
| | - Martin N. Ivanov
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, Varna, Bulgaria
- Department of Anatomy and Cell Biology, Research Institute, Medical University of Varna, Varna, Bulgaria
| | - Manlio Vinciguerra
- Department of Stem Cell Biology and Transplantology, Research Institute, Medical University of Varna, Varna, Bulgaria
- Faculty of Health, Liverpool John Moores University, Liverpool, United Kingdom
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2
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Chu PY, Nguyen TNA, Wu AY, Huang PS, Huang KL, Liao CJ, Hsieh CH, Wu MH. The Utilization of Optically Induced Dielectrophoresis (ODEP)-Based Cell Manipulation in a Microfluidic System for the Purification and Sorting of Circulating Tumor Cells (CTCs) with Different Sizes. MICROMACHINES 2023; 14:2170. [PMID: 38138338 PMCID: PMC10745986 DOI: 10.3390/mi14122170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 11/24/2023] [Accepted: 11/28/2023] [Indexed: 12/24/2023]
Abstract
The analysis of circulating tumor cells (CTCs) at the molecular level holds great promise for several clinical applications. For this goal, the harvest of high-purity, size-sorted CTCs with different subtypes from a blood sample are important. For this purpose, a two-step CTC isolation protocol was proposed, by which the immunomagnetic beads-based cell separation was first utilized to remove the majority of blood cells. After that, an optically induced dielectrophoresis (ODEP) microfluidic system was developed to (1) purify the CTCs from the remaining magnetic microbeads-bound blood cells and to (2) sort and separate the CTCs with different sizes. In this study, the ODEP microfluidic system was designed and fabricated. Moreover, its optimum operation conditions and performance were explored. The results exhibited that the presented technique was able to purify and sort the cancer cells with two different sizes from a tested cell suspension in a high-purity (93.5% and 90.1% for the OECM 1 and HA22T cancer cells, respectively) manner. Overall, this study presented a technique for the purification and sorting of cancer cells with different sizes. Apart from this application, the technique is also useful for other applications in which the high-purity and label-free purification and sorting of cells with different sizes is required.
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Affiliation(s)
- Po-Yu Chu
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan; (P.-Y.C.); (T.N.A.N.); (A.-Y.W.); (P.-S.H.); (K.-L.H.)
| | - Thi Ngoc Anh Nguyen
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan; (P.-Y.C.); (T.N.A.N.); (A.-Y.W.); (P.-S.H.); (K.-L.H.)
| | - Ai-Yun Wu
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan; (P.-Y.C.); (T.N.A.N.); (A.-Y.W.); (P.-S.H.); (K.-L.H.)
| | - Po-Shuan Huang
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan; (P.-Y.C.); (T.N.A.N.); (A.-Y.W.); (P.-S.H.); (K.-L.H.)
| | - Kai-Lin Huang
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan; (P.-Y.C.); (T.N.A.N.); (A.-Y.W.); (P.-S.H.); (K.-L.H.)
| | - Chia-Jung Liao
- Department of Biomedical Sciences, College of Medicine, Chang-Gung University, Taoyuan 333, Taiwan;
| | - Chia-Hsun Hsieh
- Division of Hematology-Oncology, Department of Internal Medicine, New Taipei City Municipal Tucheng Hospital, New Taipei City 23652, Taiwan;
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan City 33302, Taiwan
| | - Min-Hsien Wu
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan City 33302, Taiwan; (P.-Y.C.); (T.N.A.N.); (A.-Y.W.); (P.-S.H.); (K.-L.H.)
- Division of Hematology-Oncology, Department of Internal Medicine, New Taipei City Municipal Tucheng Hospital, New Taipei City 23652, Taiwan;
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital at Linkou, Taoyuan City 33302, Taiwan
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3
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Debnath P, Dalal K, Dalal B, Athalye S, Chandnani S, Jain S, Shukla A, Rathi P, Shankarkumar A. Characterization of Circulating Tumor Cells Using Imaging Flow Cytometry in Liver Disease Patients. J Clin Exp Hepatol 2023; 13:608-617. [PMID: 37440955 PMCID: PMC10333953 DOI: 10.1016/j.jceh.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 02/03/2023] [Indexed: 07/15/2023] Open
Abstract
Background Hepatocellular carcinoma (HCC) is asymptomatic at an early stage which delays its timely diagnosis and treatment. Circulating tumor cells (CTCs), derived from a primary or secondary tumor, may help in the management of HCC. Here, we evaluate and characterize CTCs in liver disease patients. Methods In total, 65 patients, categorized into liver cirrhosis (LC) (n = 30) and HCC (n = 35), were enrolled. Using ImagestreamX MkII imaging flow cytometer, CTCs were detected and characterized using biomarker expression of EpCAM, CK, AFP, CD45, and DRAQ5 in LC and HCC patients. Results CTCs were detected in 33/35 (94%) HCC patients and in 28/30 (93%) LC patients. In the HCC group, the number of biomarker-positive CTCs was higher in BCLC stage D when compared with others. EpCAM + CK was the most expressed biomarker on CTCs in LC versus HCC (83.3% vs. 77.14%), followed by AFP (80% vs. 65.71%), EpCAM (30% vs. 28.57%), and CK (16.6% vs. 14.28%). The EpCAM cell area was significantly associated (P value = 0.031) with the CTC-positive status. The combination biomarker expression of CTCs cell area (EpCAM, CK, and AFP) performed well with the area under the curve of 0.92, high sensitivity, and specificity in detecting early-stage and AFP-negative HCC as well as in AFP-negative LC cases. Conclusion Enumeration and cell area of CTCs may be used as a biomarker for early detection of HCC and guiding treatment.
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Affiliation(s)
- Partha Debnath
- Department of Gastroenterology, Topiwala National Medical College and BYL Ch Hospital, Dr. A.L Nair Road, Mumbai 400 008, Maharashtra, India
| | - Kruti Dalal
- Transfusion Transmitted Diseases Department, National Institute of Immunohaematology, 13th Floor, New Multi-storeyed Bldg, KEM Hospital Campus, Parel, Mumbai 400 012, Maharashtra, India
| | - Bhavik Dalal
- Transfusion Transmitted Diseases Department, National Institute of Immunohaematology, 13th Floor, New Multi-storeyed Bldg, KEM Hospital Campus, Parel, Mumbai 400 012, Maharashtra, India
| | - Shreyasi Athalye
- Transfusion Transmitted Diseases Department, National Institute of Immunohaematology, 13th Floor, New Multi-storeyed Bldg, KEM Hospital Campus, Parel, Mumbai 400 012, Maharashtra, India
| | - Sanjay Chandnani
- Department of Gastroenterology, Topiwala National Medical College and BYL Ch Hospital, Dr. A.L Nair Road, Mumbai 400 008, Maharashtra, India
| | - Shubham Jain
- Department of Gastroenterology, Topiwala National Medical College and BYL Ch Hospital, Dr. A.L Nair Road, Mumbai 400 008, Maharashtra, India
| | - Akash Shukla
- Department of Gastroenterology, King Edward Memorial Hospital and Seth Gordhandas Sunderdas Medical College, Acharya Donde Marg, Parel East, Parel, Mumbai, Maharashtra 400012, India
| | - Pravin Rathi
- Department of Gastroenterology, Topiwala National Medical College and BYL Ch Hospital, Dr. A.L Nair Road, Mumbai 400 008, Maharashtra, India
| | - Aruna Shankarkumar
- Transfusion Transmitted Diseases Department, National Institute of Immunohaematology, 13th Floor, New Multi-storeyed Bldg, KEM Hospital Campus, Parel, Mumbai 400 012, Maharashtra, India
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Zhao Y, Isozaki A, Herbig M, Hayashi M, Hiramatsu K, Yamazaki S, Kondo N, Ohnuki S, Ohya Y, Nitta N, Goda K. Intelligent sort-timing prediction for image-activated cell sorting. Cytometry A 2023; 103:88-97. [PMID: 35766305 DOI: 10.1002/cyto.a.24664] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 05/20/2022] [Accepted: 06/11/2022] [Indexed: 02/07/2023]
Abstract
Intelligent image-activated cell sorting (iIACS) has enabled high-throughput image-based sorting of single cells with artificial intelligence (AI) algorithms. This AI-on-a-chip technology combines fluorescence microscopy, AI-based image processing, sort-timing prediction, and cell sorting. Sort-timing prediction is particularly essential due to the latency on the order of milliseconds between image acquisition and sort actuation, during which image processing is performed. The long latency amplifies the effects of the fluctuations in the flow speed of cells, leading to fluctuation and uncertainty in the arrival time of cells at the sort point on the microfluidic chip. To compensate for this fluctuation, iIACS measures the flow speed of each cell upstream, predicts the arrival timing of the cell at the sort point, and activates the actuation of the cell sorter appropriately. Here, we propose and demonstrate a machine learning technique to increase the accuracy of the sort-timing prediction that would allow for the improvement of sort event rate, yield, and purity. Specifically, we trained an algorithm to predict the sort timing for morphologically heterogeneous budding yeast cells. The algorithm we developed used cell morphology, position, and flow speed as inputs for prediction and achieved 41.5% lower prediction error compared to the previously employed method based solely on flow speed. As a result, our technique would allow for an increase in the sort event rate of iIACS by a factor of ~2.
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Affiliation(s)
- Yaqi Zhao
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Akihiro Isozaki
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Maik Herbig
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Mika Hayashi
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Kotaro Hiramatsu
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Sota Yamazaki
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan
| | - Naoko Kondo
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Shinsuke Ohnuki
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan
| | - Yoshikazu Ohya
- Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, Japan.,Collaborative Research Institute for Innovative Microbiology, The University of Tokyo, Tokyo, Japan
| | | | - Keisuke Goda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo, Japan.,CYBO, Tokyo, Japan.,Department of Bioengineering, University of California, California, Los Angeles, USA.,Institute of Technological Sciences, Wuhan University, Hubei, China
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Detection and Characterization of Circulating Tumor Cells Using Imaging Flow Cytometry—A Perspective Study. Cancers (Basel) 2022; 14:cancers14174178. [PMID: 36077716 PMCID: PMC9454939 DOI: 10.3390/cancers14174178] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/05/2022] [Accepted: 08/24/2022] [Indexed: 11/24/2022] Open
Abstract
Simple Summary Liquid biopsy is non-invasive approach used to prognose and monitor tumor progression based on the detection and examination of metastasis-related events found in the patients’ blood (such as circulating tumor cells (CTCs), extracellular vesicles, and circulating nucleic acids). Different ultrasensitive techniques are applied to study those events and the biology of tumor dissemination, which in the future might complement standard diagnostics. Here, we suggest that CTCs analysis could be improved by the usage of imaging flow cytometry, combining advantages of both standard flow cytometry (high-scale analysis) and microscopy (high resolution) to investigate detailed features of those cells. From this perspective, we discuss the potential of this technology in the CTC field and present representative images of CTCs from breast and prostate cancer patients analyzed with this method. Abstract Tumor dissemination is one of the most-investigated steps of tumor progression, which in recent decades led to the rapid development of liquid biopsy aiming to analyze circulating tumor cells (CTCs), extracellular vesicles (EVs), and circulating nucleic acids in order to precisely diagnose and monitor cancer patients. Flow cytometry was considered as a method to detect CTCs; however, due to the lack of verification of the investigated cells’ identity, this method failed to reach clinical utility. Meanwhile, imaging flow cytometry combining the sensitivity and high throughput of flow cytometry and image-based detailed analysis through a high-resolution microscope might open a new avenue in CTC technologies and provide an open-platform system alternative to CellSearch®, which is still the only gold standard in this field. Hereby, we shortly review the studies on the usage of flow cytometry in CTC identification and present our own representative images of CTCs envisioned by imaging flow cytometry providing rationale that this novel technology might be a good tool for studying tumor dissemination, and, if combined with a high CTC yield enrichment method, could upgrade CTC-based diagnostics.
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Staudte S, Klinghammer K, Jurmeister PS, Jank P, Blohmer JU, Liebs S, Rhein P, Hauser AE, Tinhofer I. Multiparametric Phenotyping of Circulating Tumor Cells for Analysis of Therapeutic Targets, Oncogenic Signaling Pathways and DNA Repair Markers. Cancers (Basel) 2022; 14:cancers14112810. [PMID: 35681790 PMCID: PMC9179910 DOI: 10.3390/cancers14112810] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 01/02/2023] Open
Abstract
Simple Summary Detection of circulating tumor cells (CTCs) has been established as an independent prognostic marker in solid cancer. In order to expand the clinical utility of this blood–based minimally invasive biomarker we established a protocol allowing multiparametric phenotyping of CTCs to analyze the expression levels of therapeutic target proteins. By applying this assay, we demonstrated intratumoral heterogeneity of PD–L1 expression in CTCs from head and neck cancer patients, an observation previously reported in tumor tissue specimens. We further verified the feasibility of applying the protocol to analyze the activation status of important oncogenic pathways and the extent of DNA repair following radiation. These promising preliminary results warrant further study and may lead to the implementation of this assay in clinical routine for improved treatment selection and monitoring. Abstract Detection of circulating tumor cells (CTCs) has been established as an independent prognostic marker in solid cancer. Multiparametric phenotyping of CTCs could expand the area of application for this liquid biomarker. We evaluated the Amnis® brand ImageStream®X MkII (ISX) (Luminex, Austin, TX, USA) imaging flow cytometer for its suitability for protein expression analysis and monitoring of treatment effects in CTCs. This was carried out using blood samples from patients with head and neck squamous cell carcinoma (n = 16) and breast cancer (n = 8). A protocol for negative enrichment and staining of CTCs was established, allowing quantitative analysis of the therapeutic targets PD–L1 and phosphorylated EGFR (phospho–EGFR), and the treatment response marker γH2AX as an indicator of radiation–induced DNA damage. Spiking experiments revealed a sensitivity of 73% and a specificity of 100% at a cut–off value of ≥3 CTCs, and thus confirmed the suitability of the ISX-based protocol to detect phospho–EGFR and γH2AX foci in CTCs. Analysis of PD–L1/–L2 in both spiked and patient blood samples further showed that assessment of heterogeneity in protein expression within the CTC population was possible. Further validation of the diagnostic potential of this ISX protocol for multiparametric CTC analysis in larger clinical cohorts is warranted.
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Affiliation(s)
- Stephanie Staudte
- Department of Radiooncology and Radiotherapy, Charité University Hospital, 10117 Berlin, Germany;
- German Cancer Consortium (DKTK) Partner Site, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
- Correspondence:
| | - Konrad Klinghammer
- Department of Hematology and Oncology, Charité University Hospital, 10117 Berlin, Germany;
- Charité Comprehensive Cancer Center (CCCC), Charité University Hospital, 10117 Berlin, Germany;
| | - Philipp Sebastian Jurmeister
- Institute of Pathology, Charité University Hospital, 10117 Berlin, Germany;
- Institute of Pathology, Ludwig Maximilians University Hospital Munich, 80337 Munich, Germany
| | - Paul Jank
- Institute of Pathology, Philipps-University Marburg and University-Hospital Marburg (UKGM), 35039 Marburg, Germany;
| | - Jens-Uwe Blohmer
- Breast Cancer Center, Charité University Hospital, 10117 Berlin, Germany;
| | - Sandra Liebs
- Charité Comprehensive Cancer Center (CCCC), Charité University Hospital, 10117 Berlin, Germany;
| | - Peter Rhein
- Luminex B.V., A DiaSorin Company, 5215 MV‘s-Hertogenbosch, The Netherlands;
| | - Anja E. Hauser
- Department of Rheumatology and Clinical Immunology, Charité University Hospital, 10117 Berlin, Germany;
- Deutsches Rheuma-Forschungszentrum (DRFZ), Leibniz Association, 10117 Berlin, Germany
| | - Ingeborg Tinhofer
- Department of Radiooncology and Radiotherapy, Charité University Hospital, 10117 Berlin, Germany;
- German Cancer Consortium (DKTK) Partner Site, and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
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Ruiz-Rodríguez AJ, Molina-Vallejo MP, Aznar-Peralta I, González Puga C, Cañas García I, González E, Lorente JA, Serrano MJ, Garrido-Navas MC. Deep Phenotypic Characterisation of CTCs by Combination of Microfluidic Isolation (IsoFlux) and Imaging Flow Cytometry (ImageStream). Cancers (Basel) 2021; 13:cancers13246386. [PMID: 34945008 PMCID: PMC8699219 DOI: 10.3390/cancers13246386] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/13/2021] [Accepted: 12/15/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary Cells that escape the primary tumour and have the potential ability to colonise distant organs through metastasis are called circulating tumour cells (CTCs). The study of CTCs in colorectal cancer (CRC) has demonstrated their prognostic utility, although current methodologies only allow the evaluation of CTC numbers and a maximum of two markers. Here, we developed a novel protocol for the isolation and characterisation of CTCs by combining two existing technologies. This new methodology allows the simultaneous evaluation of multiple markers and parameters. In particular, we evaluated the expression of a mutant protein (BRAFV600E) associated with poor response to therapies against EGFR and the expression of PD-L1, a marker for immunotherapy. Based on these markers, we evaluated the CTCs (positive for cytokeratin) of 16 early CRC patients and demonstrated the suitability of our protocol to classify patients into potential responders and non-responders. Abstract The isolation of circulating tumour cells (CTCs) in colorectal cancer (CRC) mostly relies on the expression of epithelial markers such as EpCAM, and phenotypic characterisation is usually performed under fluorescence microscopy with only one or two additional markers. This limits the ability to detect different CTC subpopulations based on multiple markers. The aim of this work was to develop a novel protocol combining two platforms (IsoFluxTM and ImageStream®X) to improve CTC evaluation. Cancer cell lines and peripheral blood from healthy donors were used to evaluate the efficiency of each platform independently and in combination. Peripheral blood was extracted from 16 early CRC patients (before loco-regional surgery) to demonstrate the suitability of the protocol for CTC assessment. Additionally, peripheral blood was extracted from nine patients one month after surgery to validate the utility of our protocol for identifying CTC subpopulation changes over time. Results: Our protocol had a mean recovery efficiency of 69.5% and a limit of detection of at least four cells per millilitre. We developed an analysis method to reduce noise from magnetic beads used for CTC isolation. CTCs were isolated from CRC patients with a median of 37 CTCs (IQ 13.0–85.5) at baseline. CTCs from CRC patients were significantly (p < 0.0001) larger than cytokeratin (CK)-negative cells, and patients were stratified into two groups based on BRAFV600E and PD-L1 expression on CK-positive cells. The changes observed over time included not only the number of CTCs but also their distribution into four different subpopulations defined according to BRAFV600E and PD-L1 positivity. We developed a novel protocol for semi-automatic CTC isolation and phenotypic characterisation by combining two platforms. Assessment of CTCs from early CRC patients using our protocol allowed the identification of two clusters of patients with changing phenotypes over time.
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Affiliation(s)
- Antonio J. Ruiz-Rodríguez
- Clinical Management Unit of Digestive Disease, San Cecilio University Hospital, 18016 Granada, Spain;
- GENYO Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Liquid Biopsy and Cancer Interception Group, PTS Granada, 18016 Granada, Spain; (M.P.M.-V.); (I.A.-P.); (J.A.L.)
| | - Maria P. Molina-Vallejo
- GENYO Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Liquid Biopsy and Cancer Interception Group, PTS Granada, 18016 Granada, Spain; (M.P.M.-V.); (I.A.-P.); (J.A.L.)
| | - Inés Aznar-Peralta
- GENYO Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Liquid Biopsy and Cancer Interception Group, PTS Granada, 18016 Granada, Spain; (M.P.M.-V.); (I.A.-P.); (J.A.L.)
- Legal Medicine Department, Medicine School, University of Granada, 18016 Granada, Spain
| | - Cristina González Puga
- Clinical Management Unit of Surgery, San Cecilio University Hospital, 18016 Granada, Spain; (C.G.P.); (I.C.G.)
| | - Inés Cañas García
- Clinical Management Unit of Surgery, San Cecilio University Hospital, 18016 Granada, Spain; (C.G.P.); (I.C.G.)
| | - Encarna González
- Clinical Management Unit of Oncology, University Hospital Virgen de las Nieves, 18014 Granada, Spain;
| | - Jose A. Lorente
- GENYO Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Liquid Biopsy and Cancer Interception Group, PTS Granada, 18016 Granada, Spain; (M.P.M.-V.); (I.A.-P.); (J.A.L.)
- Legal Medicine Department, Medicine School, University of Granada, 18016 Granada, Spain
| | - M. Jose Serrano
- GENYO Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Liquid Biopsy and Cancer Interception Group, PTS Granada, 18016 Granada, Spain; (M.P.M.-V.); (I.A.-P.); (J.A.L.)
- Medical Oncology Department, Bio-Health Research Institute (IBS, Granada), University Hospital Virgen de las Nieves, University of Granada, 18012 Granada, Spain
- Department of Pathological Anatomy, Faculty of Medicine, Campus de Ciencias de la Salud, University of Granada, 18016 Granada, Spain
- Correspondence: (M.J.S.); (M.C.G.-N.); Tel.: +34-958715500 (ext. 123) (M.J.S.); +34-958715500 (ext. 208) (M.C.G.-N.)
| | - M. Carmen Garrido-Navas
- GENYO Centre for Genomics and Oncological Research: Pfizer, University of Granada, Andalusian Regional Government, Liquid Biopsy and Cancer Interception Group, PTS Granada, 18016 Granada, Spain; (M.P.M.-V.); (I.A.-P.); (J.A.L.)
- Genetics Department, Faculty of Sciences, University of Granada, 18071 Granada, Spain
- Correspondence: (M.J.S.); (M.C.G.-N.); Tel.: +34-958715500 (ext. 123) (M.J.S.); +34-958715500 (ext. 208) (M.C.G.-N.)
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Lemma S, Perrone AM, De Iaco P, Gasparre G, Kurelac I. Current methodologies to detect circulating tumor cells: a focus on ovarian cancer. Am J Cancer Res 2021; 11:4111-4126. [PMID: 34659879 PMCID: PMC8493391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023] Open
Abstract
Identification of circulating tumor cells (CTC) in liquid biopsies opens a window of opportunities for the optimization of clinical management of oncologic patients. In ovarian cancer (OC), which involves atypical routes of metastatic spread, CTC analyses may also offer novel insights about the mechanisms behind malignant progression of the disease. However, current methodologies struggle to precisely define CTC number in the peripheral blood of OC patients, and the isolation of viable cells for further characterization is still challenging. The biggest limitation is the lack of methodological standardization for OC CTC detection, preventing comprehensive definition of their clinical potential required for the transfer to practice. Here we describe and compare methods for CTC analysis that have been implemented for OC thus far, discussing pros, cons and improvements needed. We identify biophysical separation approaches as optimal for CTC enrichment. On the other hand, the identification of specific tumor antigens or gene transcripts, despite displaying drawbacks related to tumor heterogeneity, still remains the best approach for OC CTC detection.
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Affiliation(s)
- Silvia Lemma
- Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Study and Research Center on Gynecological Neoplasias, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Center for Applied Biomedical Research (CRBA), University of Bologna40138 Bologna, Italy
| | - Anna M Perrone
- Study and Research Center on Gynecological Neoplasias, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Division of Oncologic Gynecology, IRCCS-Azienda Ospedaliero-Universitaria di Bologna40138 Bologna, Italy
| | - Pierandrea De Iaco
- Study and Research Center on Gynecological Neoplasias, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Division of Oncologic Gynecology, IRCCS-Azienda Ospedaliero-Universitaria di Bologna40138 Bologna, Italy
| | - Giuseppe Gasparre
- Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Study and Research Center on Gynecological Neoplasias, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Center for Applied Biomedical Research (CRBA), University of Bologna40138 Bologna, Italy
| | - Ivana Kurelac
- Unit of Medical Genetics, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Study and Research Center on Gynecological Neoplasias, Department of Medical and Surgical Sciences (DIMEC), University of BolognaVia Massarenti 9, 40138 Bologna, Italy
- Center for Applied Biomedical Research (CRBA), University of Bologna40138 Bologna, Italy
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Pelizzaro F, Cardin R, Penzo B, Pinto E, Vitale A, Cillo U, Russo FP, Farinati F. Liquid Biopsy in Hepatocellular Carcinoma: Where Are We Now? Cancers (Basel) 2021; 13:2274. [PMID: 34068786 PMCID: PMC8126224 DOI: 10.3390/cancers13092274] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 02/07/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer related death worldwide. Diagnostic, prognostic, and predictive biomarkers are urgently needed in order to improve patient survival. Indeed, the most widely used biomarkers, such as alpha-fetoprotein (AFP), have limited accuracy as both diagnostic and prognostic tests. Liver biopsy provides an insight on the biology of the tumor, but it is an invasive procedure, not routinely used, and not representative of the whole neoplasia due to the demonstrated intra-tumoral heterogeneity. In recent years, liquid biopsy, defined as the molecular analysis of cancer by-products, released by the tumor in the bloodstream, emerged as an appealing source of new biomarkers. Several studies focused on evaluating extracellular vesicles, circulating tumor cells, cell-free DNA and non-coding RNA as novel reliable biomarkers. In this review, we aimed to provide a comprehensive overview on the most relevant available evidence on novel circulating biomarkers for early diagnosis, prognostic stratification, and therapeutic monitoring. Liquid biopsy seems to be a very promising instrument and, in the near future, some of these new non-invasive tools will probably change the clinical management of HCC patients.
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Affiliation(s)
- Filippo Pelizzaro
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (F.P.); (R.C.); (B.P.); (E.P.); (F.P.R.)
| | - Romilda Cardin
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (F.P.); (R.C.); (B.P.); (E.P.); (F.P.R.)
| | - Barbara Penzo
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (F.P.); (R.C.); (B.P.); (E.P.); (F.P.R.)
| | - Elisa Pinto
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (F.P.); (R.C.); (B.P.); (E.P.); (F.P.R.)
| | - Alessandro Vitale
- Hepatobiliary Surgery and Liver Transplantation Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (A.V.); (U.C.)
| | - Umberto Cillo
- Hepatobiliary Surgery and Liver Transplantation Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (A.V.); (U.C.)
| | - Francesco Paolo Russo
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (F.P.); (R.C.); (B.P.); (E.P.); (F.P.R.)
| | - Fabio Farinati
- Gastroenterology Unit, Department of Surgery, Oncology and Gastroenterology, University of Padua, 35128 Padua, Italy; (F.P.); (R.C.); (B.P.); (E.P.); (F.P.R.)
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Evaluation of a marker independent isolation method for circulating tumor cells in esophageal adenocarcinoma. PLoS One 2021; 16:e0251052. [PMID: 33961658 PMCID: PMC8104412 DOI: 10.1371/journal.pone.0251052] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 04/20/2021] [Indexed: 12/15/2022] Open
Abstract
Objective The enrichment of circulating tumor cells (CTCs) from blood provides a minimally invasive method for biomarker discovery in cancer. Longitudinal interrogation allows monitoring or prediction of therapy response, detection of minimal residual disease or progression, and determination of prognosis. Despite inherent phenotypic heterogeneity and differences in cell surface marker expression, most CTC isolation technologies typically use positive selection. This necessitates the optimization of marker-independent CTC methods, enabling the capture of heterogenous CTCs. The aim of this report is to compare a size-dependent and a marker-dependent CTC-isolation method, using spiked esophageal cells in healthy donor blood and blood from patients diagnosed with esophageal adenocarcinoma. Methods Using esophageal cancer cell lines (OE19 and OE33) spiked into blood of a healthy donor, we investigated tumor cell isolation by Parsortix post cell fixation, immunostaining and transfer to a glass slide, and benchmarked its performance against the CellSearch system. Additionally, we performed DEPArray cell sorting to infer the feasibility to select and isolate cells of interest, aiming towards downstream single-cell molecular characterization in future studies. Finally, we measured CTC prevalence by Parsortix in venous blood samples from patients with various esophageal adenocarcinoma tumor stages. Results OE19 and OE33 cells were spiked in healthy donor blood and subsequently processed using CellSearch (n = 16) or Parsortix (n = 16). Upon tumor cell enrichment and enumeration, the recovery rate ranged from 76.3 ± 23.2% to 21.3 ± 9.2% for CellSearch and Parsortix, respectively. Parsortix-enriched and stained cell fractions were successfully transferred to the DEPArray instrument with preservation of cell morphology, allowing isolation of cells of interest. Finally, despite low CTC prevalence and abundance, Parsortix detected traditional CTCs (i.e. cytokeratin+/CD45-) in 8/29 (27.6%) of patients with esophageal adenocarcinoma, of whom 50% had early stage (I-II) disease. Conclusions We refined an epitope-independent isolation workflow to study CTCs in patients with esophageal adenocarcinoma. CTC recovery using Parsortix was substantially lower compared to CellSearch when focusing on the traditional CTC phenotype with CD45-negative and cytokeratin-positive staining characteristics. Future research could determine if this method allows downstream molecular interrogation of CTCs to infer new prognostic and predictive biomarkers on a single-cell level.
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Labgaa I, Villanueva A, Dormond O, Demartines N, Melloul E. The Role of Liquid Biopsy in Hepatocellular Carcinoma Prognostication. Cancers (Basel) 2021; 13:cancers13040659. [PMID: 33562173 PMCID: PMC7914891 DOI: 10.3390/cancers13040659] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Hepatocellular carcinoma (HCC) is one of the deadliest cancer. Clinical guidelines for the management of HCC endorse algorithms deriving from clinical variables whose performances to prognosticate HCC is limited. Liquid biopsy is the molecular analysis of tumor by-products released into the bloodstream. It offers minimally-invasive access to circulating analytes like DNA, RNA, exosomes and cells. This technology demonstrated promising results for various applications in cancers, including prognostication. This review aimed to provide a comprehensive overview of the contribution of liquid biopsy in HCC prognostication. The results suggested that liquid biopsy may be a polyvalent and valuable tool to prognosticate HCC. Abstract Showing a steadily increasing cancer-related mortality, the epidemiological evolution of hepatocellular carcinoma (HCC) is concerning. Numerous strategies have attempted to prognosticate HCC but their performance is modest; this is partially due to the heterogeneous biology of this cancer. Current clinical guidelines endorse classifications and scores that use clinical variables, such as the Barcelona Clinic Liver Cancer (BCLC) classification. These algorithms are unlikely to fully recapitulate the genomic complexity of HCC. Integrating molecular readouts on a patient-basis, following a precision-medicine perspective, might be an option to refine prognostic systems. The limited access to HCC tissue samples is an important limitation to these approaches but it could be partially circumvented by using liquid biopsy. This concept consists of the molecular analysis of products derived from a solid tumor and released into biological fluids, mostly into the bloodstream. It offers an easy and minimally-invasive access to DNA, RNA, extracellular vesicles and cells that can be analyzed with next-generation sequencing (NGS) technologies. This review aims to investigate the potential contributions of liquid biopsy in HCC prognostication. The results identified prognostic values for each of the components of liquid biopsy, suggesting that this technology may help refine HCC prognostication.
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Affiliation(s)
- Ismail Labgaa
- Department of Visceral Surgery, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), CH-1011 Lausanne, Switzerland; (I.L.); (O.D.); (E.M.)
| | - Augusto Villanueva
- Division of Liver Diseases, Liver Cancer Program, Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA;
- Division of Hematology/Oncology, Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Olivier Dormond
- Department of Visceral Surgery, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), CH-1011 Lausanne, Switzerland; (I.L.); (O.D.); (E.M.)
| | - Nicolas Demartines
- Department of Visceral Surgery, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), CH-1011 Lausanne, Switzerland; (I.L.); (O.D.); (E.M.)
- Correspondence:
| | - Emmanuel Melloul
- Department of Visceral Surgery, Lausanne University Hospital (CHUV), University of Lausanne (UNIL), CH-1011 Lausanne, Switzerland; (I.L.); (O.D.); (E.M.)
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Cui K, Ou Y, Shen Y, Li S, Sun Z. Clinical value of circulating tumor cells for the diagnosis and prognosis of hepatocellular carcinoma (HCC): A systematic review and meta-analysis. Medicine (Baltimore) 2020; 99:e22242. [PMID: 33019399 PMCID: PMC7535562 DOI: 10.1097/md.0000000000022242] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND To evaluate the clinical value of circulating tumor cell (CTC) detection in peripheral blood for the diagnosis and prognosis of hepatocellular carcinoma (HCC). METHODS Public databases were searched, and a meta-analysis was performed to determine the specificity, sensitivity, negative- likelihood ratio (NLR) and positive-likelihood ratio (PLR), and diagnostic odds ratio (dOR) of CTC detection for the diagnosis of HCC. Hazard ratios (HRs) and 95% confidence intervals (CIs) were analyzed for the association of CTC detection with overall survival (OS) and HCC recurrence. The Meta-DiSc 1.4 and Review Manager 5.2 software programs were used for statistical analysis. RESULTS Meta-analysis of 20 studies including 1191 patients showed that the specificity, sensitivity, NLR, PLR, and dOR of CTC testing for HCC diagnosis were 0.60 (95% CI = 0.57-0.63), 0.95 (95%CI = 0.93-0.96), 0.36 (95%CI = 0.28-0.48), 11.64 (95%CI = 5.85-23.14), and 38.94 (95%CI = 18.33-82.75), respectively. Meta-analysis of 18 studies including 1466 patients indicated that the OS of CTC-positive HCC patients was less than that of CTC-negative patients (HR = 2.31; 95% CI = 1.55-3.42; P < .01). Meta-analysis of 5 studies including 339 patients revealed that the presence of CTCs in peripheral blood significantly increased the risk of HCC recurrence (HR = 3.03, 95% CI = 1.89-4.86; P < .01). CONCLUSION CTCs in peripheral blood may be a useful marker for HCC diagnosis. In addition, the prognosis of CTC-positive HCC patients was significantly worse than that of CTC-negative HCC patients. Therefore, further studies are warranted to confirm the clinical potential of CTC detection in peripheral blood in patients with primary HCC.
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Affiliation(s)
- Kai Cui
- Shandong Cancer Hospital affiliated to Shandong University
- Shandong Academy of Medical Sciences
| | - Yang Ou
- Shandong Cancer Hospital affiliated to Shandong University
- Shandong Academy of Medical Sciences
| | - Yangyang Shen
- Shandong Cancer Hospital affiliated to Shandong University
- Shandong Academy of Medical Sciences
| | - Sheng Li
- Shandong Cancer Hospital affiliated to Shandong University
- Shandong Academy of Medical Sciences
| | - Ziqiang Sun
- Department of Vascular Surgery, Affiliated Hospital of Jining Medical College, Ji’ning, Shandong, People's Republic of China
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Carter TJ, Jeyaneethi J, Kumar J, Karteris E, Glynne-Jones R, Hall M. Identification of Cancer-Associated Circulating Cells in Anal Cancer Patients. Cancers (Basel) 2020; 12:cancers12082229. [PMID: 32785154 PMCID: PMC7465059 DOI: 10.3390/cancers12082229] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 12/26/2022] Open
Abstract
Whilst anal cancer accounts for less than 1% of all new cancer cases, incidence rates have increased by up to 70% in the last 30 years with the majority of cases driven by human papilloma virus (HPV) infection. Standard treatment for localised anal cancer is chemoradiotherapy (CRT). Localised progression is the predominant pattern of relapse but well under 50% of cases are salvaged by surgery, predominantly because confirming recurrence within post-radiation change is very challenging. Identifying cancer-associated circulating cells (CCs) in peripheral blood could offer a corroborative method of monitoring treatment efficacy and identifying relapse early. To study this, nucleated cells were isolated from the blood of patients with anal cancer prior to, during, and after CRT and processed through the Amnis® ImageStream®X Mk II Imaging Flow Cytometer, without prior enrichment, using Pan-cytokeratin (PCK), CD45 antibodies and making use of the DNA dye DRAQ5. Analysis was undertaken using IDEAS software to identify those cells that were PCK-positive and DRAQ5-positive as well as CD45-negative; these were designated as CCs. CCs were identified in 7 of 8 patients; range 60-876 cells per mL of blood. This first report of the successful identification of CCs in anal cancer patients raises the possibility that liquid biopsies will find a future role as a prognostic/diagnostic tool in this patient group.
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Affiliation(s)
- Thomas J. Carter
- Mount Vernon Cancer Centre, Middlesex HA6 2RN, UK; (T.J.C.); (R.G.-J.)
| | - Jeyarooban Jeyaneethi
- Department of Life Sciences, Brunel University, London UB83PH, UK; (J.J.); (J.K.); (E.K.)
| | - Juhi Kumar
- Department of Life Sciences, Brunel University, London UB83PH, UK; (J.J.); (J.K.); (E.K.)
| | - Emmanouil Karteris
- Department of Life Sciences, Brunel University, London UB83PH, UK; (J.J.); (J.K.); (E.K.)
| | - Rob Glynne-Jones
- Mount Vernon Cancer Centre, Middlesex HA6 2RN, UK; (T.J.C.); (R.G.-J.)
- Department of Life Sciences, Brunel University, London UB83PH, UK; (J.J.); (J.K.); (E.K.)
| | - Marcia Hall
- Mount Vernon Cancer Centre, Middlesex HA6 2RN, UK; (T.J.C.); (R.G.-J.)
- Department of Life Sciences, Brunel University, London UB83PH, UK; (J.J.); (J.K.); (E.K.)
- Correspondence:
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Barr J, Chudasama D, Rice A, Karteris E, Anikin V. Lack of association between Screencell-detected circulating tumour cells and long-term survival of patients undergoing surgery for non-small cell lung cancer: A pilot clinical study. Mol Clin Oncol 2020; 12:191-195. [PMID: 32064093 PMCID: PMC7016525 DOI: 10.3892/mco.2020.1981] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Accepted: 10/29/2019] [Indexed: 02/07/2023] Open
Abstract
Circulating tumour cells (CTCs) are cancer cells of epithelial origin that are present in peripheral blood samples. ScreenCell detection of CTCs and the association with long term survival in non-small cell lung cancer (NSCLC) patients was evaluated in the present study. A total of 33 patients undergoing surgical resection for NSCLC were recruited. Patients were followed up for 5-years post-operatively. Pre-operative patient bloods samples were processed using ScreenCell. CTCs were detected in 26 (79%) patients. In patients who were positive for CTCs, a total of 9 (35%) patients succumbed to the disease, whereas in patients negative for CTCs, a total of 4 (57%) patients succumbed to the disease (P=0.29). No association was identified between positive CTCs and poorer survival (Chi-squared 1.47, P=0.23; hazard ratio, 0.42; 95% confidence interval: 0.1-1.7). The presence of CTCs detected with ScreenCell does not influence prognosis in patients with NSCLC that was operated on. The high rate of CTC detection is encouraging in supporting this technology to aid early lung cancer diagnosis.
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Affiliation(s)
- James Barr
- Department of Thoracic Surgery, Royal Brompton and Harefield NHS Foundation Trust, Harefield UB9 6JH, UK
| | - Dimple Chudasama
- Department of Thoracic Surgery, Royal Brompton and Harefield NHS Foundation Trust, Harefield UB9 6JH, UK.,Department of Biomedical Science, Brunel University, London UB8 3PH, UK
| | - Alex Rice
- Department of Thoracic Surgery, Royal Brompton and Harefield NHS Foundation Trust, Harefield UB9 6JH, UK
| | | | - Vladimir Anikin
- Department of Thoracic Surgery, Royal Brompton and Harefield NHS Foundation Trust, Harefield UB9 6JH, UK.,Department of Oncology and Reconstructive Surgery of I.M. Sechenov First Moscow State Medical University, 119146 Moscow, Russia
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Merugu S, Chen L, Gavens E, Gabra H, Brougham M, Makin G, Ng A, Murphy D, Gabriel AS, Robinson ML, Wright JH, Burchill SA, Humphreys A, Bown N, Jamieson D, Tweddle DA. Detection of Circulating and Disseminated Neuroblastoma Cells Using the ImageStream Flow Cytometer for Use as Predictive and Pharmacodynamic Biomarkers. Clin Cancer Res 2019; 26:122-134. [DOI: 10.1158/1078-0432.ccr-19-0656] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 08/13/2019] [Accepted: 10/18/2019] [Indexed: 11/16/2022]
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Kumar J, Chudasama D, Roberts C, Kubista M, Sjöback R, Chatterjee J, Anikin V, Karteris E, Hall M. Detection of Abundant Non-Haematopoietic Circulating Cancer-Related Cells in Patients with Advanced Epithelial Ovarian Cancer. Cells 2019; 8:cells8070732. [PMID: 31319587 PMCID: PMC6678489 DOI: 10.3390/cells8070732] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/05/2019] [Accepted: 07/15/2019] [Indexed: 12/17/2022] Open
Abstract
: Background: Current diagnosis and staging of advanced epithelial ovarian cancer (aEOC) has important limitations and better biomarkers are needed. We investigate the performance of non-haematopoietic circulating cells (CCs) at the time of disease presentation and relapse. Methods: Venous blood was collected prospectively from 37 aEOC patients and 39 volunteers. CCs were evaluated using ImageStream TechnologyTM and specific antibodies to differentiate epithelial cells from haematopoetic cells. qRT-PCR from whole blood of relapsed aEOC patients was carried out for biomarker discovery. Results: Significant numbers of CCs (CK+/WT1+/CD45-) were identified, quantified and characterised from aEOC patients compared to volunteers. CCs are abundant in women with newly diagnosed aEOC, prior to any treatment. Evaluation of RNA from the CCs in relapsed aEOC patients (n = 5) against a 79-gene panel revealed several differentially expressed genes compared to volunteers (n = 14). Size differentiation of CCs versus CD45+ haematopoietic cells was not reliable. Conclusion: CCs of non-haematopoetic origin are prevalent, particularly in patients with newly diagnosed aEOC. Exploiting a CC-rich population in aEOC patients offers insights into a part of the circulating microenvironment.
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Affiliation(s)
- Juhi Kumar
- Department Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK
| | - Dimple Chudasama
- Department Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK
| | | | - Mikael Kubista
- TATAA Biocenter, 411 03 Göteborg, Sweden
- Laboratory of Gene Expression, Institute of Biotechnology CAS, v.v.i., 252 50 Vestec, Czech Republic
| | | | - Jayanta Chatterjee
- Faculty of Health and Medical Sciences, School of Biosciences and Medicine, University of Surrey, Guildford, Surrey GU2 7XH, UK
| | - Vladimir Anikin
- Department Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK
- Division of Thoracic Surgery, The Royal Brompton & Harefield NHS Foundation Trust, Harefield Hospital, London UB9 6JH, UK
- Department of Oncology and Reconstructive Surgery, Sechenov First Moscow State Medical University, 119146 Moscow, Russia
| | - Emmanouil Karteris
- Department Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK.
| | - Marcia Hall
- Department Life Sciences, Brunel University London, Uxbridge UB8 3PH, UK.
- Mount Vernon Cancer Centre, Middlesex HA6 2RN, UK.
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Clinical significance of glypican-3-positive circulating tumor cells of hepatocellular carcinoma patients: A prospective study. PLoS One 2019; 14:e0217586. [PMID: 31141571 PMCID: PMC6541303 DOI: 10.1371/journal.pone.0217586] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 05/14/2019] [Indexed: 12/15/2022] Open
Abstract
The utility of glypican-3 (GPC3) expression for the detection of circulating tumor cells (CTCs) in hepatocellular carcinoma (HCC) patients has not been elucidated. The aim of this study was to identify associations between the presence of GPC3-positive CTCs and clinicopathological factors of these patients, furthermore, to evaluate whether CTC can predict microscopic portal vein invasion (mPVI). This study was done on 85 patients who underwent hepatectomy as the first-line treatment and whose preoperative imaging showed no evidence of macroscopic PVI and distant metastases. Peripheral blood was collected from all patients immediately before surgery. Cells were purified initially by density gradient centrifugation followed by immunomagnetic positive enrichment based upon the expression of GPC3. The numbers of CTCs contained in the enriched samples were enumerated via flow cytometry. Protocol validation using HepG2 cells spiked into 8.0 mL of blood from a healthy volunteer indicated that we were able to recover 12.1% of the tumor cells. A median number of 3 CTCs (range: 0-27) was detected in the 8.0 mL of peripheral blood of the 85 analyzed HCC patients. Thirty-three patients had CTCs ≥5, and these patients had a higher incidence of mPVI (p < 0.001), a lower disease-free survival (p = 0.015), and a lower overall survival (p = 0.047) than those with CTCs <5. Multivariate analysis identified CTCs ≥5 as an independent predictor of mPVI (p < 0.001). In conclusion, preoperative GPC3-positive CTCs ≥5 was a risk factor of mPVI and poor prognosis, and therefore may be a useful biomarker for HCC patient outcomes.
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Liquid Biopsies in Lung Cancer: Four Emerging Technologies and Potential Clinical Applications. Cancers (Basel) 2019; 11:cancers11030331. [PMID: 30866571 PMCID: PMC6468998 DOI: 10.3390/cancers11030331] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 02/28/2019] [Indexed: 12/27/2022] Open
Abstract
Background: Liquid biopsies offer a promising alternative to tissue samples, providing non-invasive diagnostic approaches or serial monitoring of disease evolution. However, certain challenges remain, and the full potential of liquid biopsies has yet to be reached. Here we report several methodological approaches to interrogate liquid biopsies using circulating tumour cell (CTC) enumeration and characterisation, transcriptomics, Raman spectroscopy, and copy number instability (CNI) scores using blood samples of lung cancer (LC) patients. Methods: We choose LC; since it still is the most common cause of cancer-related mortality worldwide, and therefore there is a need for development of new non-invasive diagnostic/prognostic technologies. Changes in gene expression were assessed using RNA-seq, and in CTCs using ImageStream, an imaging flow-cytometer. CNI scores, from paired tissue/ctDNA were also explored. Raman spectroscopy was used to provide chemical fingerprints of plasma samples. Results: CTCs were detected in all LC patients (n = 10). We observed a significant increase in CTC levels in LC patients (n = 10) compared to controls (n = 21). A similar CNI was noted in the tissue and plasma of 2 patients, where higher CNI scores corresponded with poorer outcome. Significant changes in Raman spectra (carotenoid concentrations) were noted in LC patients (n = 20) compared to controls (n = 10). RNA-seq revealed differential expression of 21 genes between LC cases and controls in both LC tissue and blood samples. Conclusions: Liquid biopsies can potentially provide a more comprehensive picture of the disease compared to a single tissue biopsy. CTC enumeration is feasible and sensitive for LC patients. Molecular profiling of CTCs is also possible from total blood. CNI scores and Raman spectra require further investigation. Further work is being undertaken to explore these methods of detection in a larger LC cohort.
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Jee HG, Kim BA, Kim M, Yu HW, Choi JY, Kim SJ, Lee KE. Expression of SLC5A5 in Circulating Tumor Cells May Distinguish Follicular Thyroid Carcinomas from Adenomas: Implications for Blood-Based Preoperative Diagnosis. J Clin Med 2019; 8:jcm8020257. [PMID: 30781659 PMCID: PMC6406463 DOI: 10.3390/jcm8020257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 12/25/2022] Open
Abstract
Preoperative diagnosis of thyroid nodules reduces unnecessary surgery. Circulating tumor cells (CTCs) may contain information of primary tumor(s). We asked whether the peripheral blood expression of genes specific for circulating tumor cells (CTCs) differentiates benign thyroid nodules from malignant nodules. Peripheral blood mononuclear cells from thyroid nodule patients (n = 20) were isolated preoperatively and the expression of seven CTC-associated genes was measured in patients with thyroid nodule(s) (n = 20). Among the tested genes, the expression of SLC5A5 and LGALS3 were validated in a larger number of patients (n = 64) and our results show that SLC5A5 expression differentiated follicular adenomas from follicular carcinomas (area under the curve (AUC) = 0.831). The expression of SLC5A5 in CTCs may preoperatively distinguish thyroid follicular adenomas from follicular carcinomas.
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Affiliation(s)
- Hyeon-Gun Jee
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea.
- Healthcare Innovation Park, Seoul National University Bundang Hospital, Seoungnam 13605, Korea.
| | - Byoung-Ae Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Minjun Kim
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea.
| | - Hyeong Won Yu
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Korea.
| | - June Young Choi
- Department of Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Korea.
| | - Su-Jin Kim
- Department of Surgery, Seoul National University Hospital and College of Medicine, Seoul 03080, Korea.
| | - Kyu Eun Lee
- Cancer Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea.
- Department of Surgery, Seoul National University Hospital and College of Medicine, Seoul 03080, Korea.
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Detecting Chromosome Instability in Cancer: Approaches to Resolve Cell-to-Cell Heterogeneity. Cancers (Basel) 2019; 11:cancers11020226. [PMID: 30781398 PMCID: PMC6406658 DOI: 10.3390/cancers11020226] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/11/2019] [Accepted: 02/13/2019] [Indexed: 02/07/2023] Open
Abstract
Chromosome instability (CIN) is defined as an increased rate of chromosome gains and losses that manifests as cell-to-cell karyotypic heterogeneity and drives cancer initiation and evolution. Current research efforts are aimed at identifying the etiological origins of CIN, establishing its roles in cancer pathogenesis, understanding its implications for patient prognosis, and developing novel therapeutics that are capable of exploiting CIN. Thus, the ability to accurately identify and evaluate CIN is critical within both research and clinical settings. Here, we provide an overview of quantitative single cell approaches that evaluate and resolve cell-to-cell heterogeneity and CIN, and discuss considerations when selecting the most appropriate approach to suit both research and clinical contexts.
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Abstract
Circulating tumor cells (CTCs) have long been assumed to be the substrate of cancer metastasis. However, only in recent years have we begun to leverage the potential of CTCs found in minimally invasive peripheral blood specimens to improve care for cancer patients. Currently, CTC enumeration is an accepted prognostic indicator for breast, prostate, and colorectal cancer; however, CTC enumeration remains largely a research tool. More recently, the focus has shifted to CTC characterization and isolation which holds great promise for predictive testing. This review summarizes the relevant clinical, biological, and technical background necessary for pathologists and cytopathologists to appreciate the potential of CTC techniques. A summary of relevant systematic reviews of CTCs for specific cancers is then presented, as well as potential applications to precision medicine. Finally, we suggest future applications of CTC technologies that can be easily incorporated in the pathology laboratory, with the recommendation that pathologists and particularly cytopathologists apply these technologies to small specimens in the era of "doing more with less."
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22
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Ota S, Horisaki R, Kawamura Y, Ugawa M, Sato I, Hashimoto K, Kamesawa R, Setoyama K, Yamaguchi S, Fujiu K, Waki K, Noji H. Ghost cytometry. Science 2018; 360:1246-1251. [PMID: 29903975 DOI: 10.1126/science.aan0096] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Revised: 03/10/2018] [Accepted: 05/14/2018] [Indexed: 12/13/2022]
Abstract
Ghost imaging is a technique used to produce an object's image without using a spatially resolving detector. Here we develop a technique we term "ghost cytometry," an image-free ultrafast fluorescence "imaging" cytometry based on a single-pixel detector. Spatial information obtained from the motion of cells relative to a static randomly patterned optical structure is compressively converted into signals that arrive sequentially at a single-pixel detector. Combinatorial use of the temporal waveform with the intensity distribution of the random pattern allows us to computationally reconstruct cell morphology. More importantly, we show that applying machine-learning methods directly on the compressed waveforms without image reconstruction enables efficient image-free morphology-based cytometry. Despite a compact and inexpensive instrumentation, image-free ghost cytometry achieves accurate and high-throughput cell classification and selective sorting on the basis of cell morphology without a specific biomarker, both of which have been challenging to accomplish using conventional flow cytometers.
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Affiliation(s)
- Sadao Ota
- Thinkcyte Inc., 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan. .,University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan
| | - Ryoichi Horisaki
- Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan.,Department of Information and Physical Sciences, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoko Kawamura
- Thinkcyte Inc., 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Masashi Ugawa
- Thinkcyte Inc., 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Issei Sato
- Thinkcyte Inc., 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,Japan Science and Technology Agency, PRESTO, 4-1-8 Honcho, Kawaguchi-shi, Saitama 332-0012, Japan.,RIKEN AIP, Nihonbashi 1-chome Mitsui Building, 1-4-1 Nihonbashi, Chuo-ku, Tokyo 103-0027, Japan
| | - Kazuki Hashimoto
- University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,Japan Aerospace Exploration Agency, 6-13-1 Osawa, Mitaka-shi, Tokyo 181-0015, Japan
| | - Ryosuke Kamesawa
- Thinkcyte Inc., 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Kotaro Setoyama
- Thinkcyte Inc., 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Satoko Yamaguchi
- University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Katsuhito Fujiu
- University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Kayo Waki
- University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan
| | - Hiroyuki Noji
- University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8654, Japan.,ImPACT Program, Cabinet Office, Government of Japan, Chiyoda-ku Tokyo 100-8914, Japan
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23
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Tinhofer I, Staudte S. Circulating tumor cells as biomarkers in head and neck cancer: recent advances and future outlook. Expert Rev Mol Diagn 2018; 18:897-906. [DOI: 10.1080/14737159.2018.1522251] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Ingeborg Tinhofer
- Department of Radiooncology and Radiotherapy, Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- German Cancer Research Center (DKFZ), Heidelberg, and German Cancer Consortium (DKTK) partner site Berlin, Berlin, Germany
| | - Stephanie Staudte
- Department of Radiooncology and Radiotherapy, Charité – Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
- German Cancer Research Center (DKFZ), Heidelberg, and German Cancer Consortium (DKTK) partner site Berlin, Berlin, Germany
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24
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Khatami F, Tavangar SM. Liquid Biopsy in Thyroid Cancer: New Insight. Int J Hematol Oncol Stem Cell Res 2018; 12:235-248. [PMID: 30595827 PMCID: PMC6305265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Thyroid cancer, one of the most widespread malignancies of the endocrine-related system that over the past three decades, has a vivid increasing rate. The diagnosis and management of it is dependent on the tumor type and stage. Thyroid cancer is divided into four main types, including PTC (papillary thyroid carcinoma), FTC (follicular thyroid carcinoma), MTC (medullarly thyroid carcinoma), and ATC (anaplastic thyroid carcinoma). The development of the noninvasive diagnostic tool for plasma genotyping, also known as "liquid biopsy", brings a new insight for cancer diagnosis and prognosis. It is mainly containing circulating tumor DNA (ctDNA), circulating tumor cell (CTC), exosomes and extrachromosomal circular DNA (ecDNA). Liquid biopsy as a new plasma genotyping source brings a new prospective of tumor monitoring and therapy. It beneficially reduces the need of tissue biopsy and made early recognition of relapse as well. This article summarizes its components characteristics and their benefit in diagnosis and treatment of thyroid cancer.
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Affiliation(s)
- Fatemeh Khatami
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Tavangar
- Chronic Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran,Department of Pathology, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
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25
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Easy Employment and Crosstalk-Free Detection of Seven Fluorophores in a Widefield Fluorescence Microscope. Methods Protoc 2018; 1:mps1020020. [PMID: 31164563 PMCID: PMC6526416 DOI: 10.3390/mps1020020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 05/26/2018] [Accepted: 05/30/2018] [Indexed: 11/29/2022] Open
Abstract
Immunofluorescence staining has become an essential tool in pathology and biomedical sciences to identify rare cells, cell–cell interactions, and submicroscopic cellular components. Many experimental settings, however, suffer from the fact that traditional widefield fluorescence microscopy is usually restricted to imaging three or four fluorophores only. Due to a lack of morphological information and a high detection limit, even flow cytometry—which is capable of staining 20 or more fluorophores at the same time—is limited in its applicability, especially in areas such as rare cell detection. Other advanced imaging approaches, such as confocal laser scanning microscopy and imaging flow cytometry, may be addressing these shortcomings, but in turn require sophisticated downstream data processing and high capital outlay. Here, we describe a new method and filter set-up to routinely employ up to seven fluorophores on a traditional widefield fluorescence microscope equipped with a standard high-pressure mercury light source. Quantification of crosstalk between channels and actual seven-color imaging of cancer cells spiked into leukocytes demonstrate that there is no need for digital compensation correction algorithms. Our set-up thus permits a detailed analysis of rare cell populations, co-localization of antigens, and cell morphology in a standard research or routine laboratory setting.
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26
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Detection of HER2 Amplification in Circulating Tumor Cells of HER2-Negative Gastric Cancer Patients. Target Oncol 2018; 12:341-351. [PMID: 28508152 DOI: 10.1007/s11523-017-0493-6] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A key to the successful use of targeted cancer therapy is the ability to preselect patients who are likely to benefit from the treatment according to molecular markers. Assessment for predicting therapy response is mostly done using tumor biopsies. However, these might not truly represent all of the patient's malignant cells because of tumor heterogeneity and/or clonal evolution during disease progression. One potential strategy that can complement primary tumor biopsy is the analysis of circulating tumor cells (CTCs). In this study, we analyzed CTCs of patients with gastric cancer (GC) to find those who were likely to benefit from trastuzumab therapies. We developed an imaging-based method that enabled CTC identification simultaneously with evaluation of HER2 gene amplification (the 3D-IF-FISH method). Then we performed a study enrolling 101 GC patients in whom we analyzed CTCs by both 3D-IF-FISH and an FDA-approved CellSearch system. As compared with the CellSearch system, 3D-IF-FISH methods identified a higher number of patients whose primary tumors were HER2- but who had HER2+ CTCs, suggesting that the 3D-IF-FISH method is effective in preselecting patients for trastuzumab therapies. To demonstrate this, we performed an exploratory clinical study to evaluate the clinical benefits of trastuzumab treatment for advanced GC patients (n = 15) whose primary tumors were HER2-, but whose CTCs showed HER2 amplification. An interim evaluation after the first stage showed that these preselected patients had response rates comparable to those reported in the trastuzumab-plus-chemotherapy arm of the ToGA study. The present study offers a new, non-invasive strategy to select patients who are likely to benefit from trastuzumab-based therapies, despite their primary biopsy being HER2-negative. (UMIN ID: UMIN000008622).
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27
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Li YR, Tseng CP, Hsu HL, Lin HC, Chen YA, Chen ST, Liou MJ, Lin JD. Circulating epithelial cells as potential biomarkers for detection of recurrence in patients of papillary thyroid carcinoma with positive serum anti-thyroglobulin antibody. Clin Chim Acta 2017; 477:74-80. [PMID: 29229463 DOI: 10.1016/j.cca.2017.12.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 11/28/2017] [Accepted: 12/07/2017] [Indexed: 12/16/2022]
Abstract
BACKGROUND Serum thyroglobulin (Tg) is not a reliable tumor marker for monitoring disease status after treatment in patients with papillary thyroid carcinoma (PTC) with positive anti-thyroglobulin antibody (TgAb). The aim of this study was to evaluate the clinical role of circulating epithelial cells (CECs) in PTC patients with positive serum TgAb and undetectable serum Tg. METHODS A pilot study was performed to evaluate CECs in 25 PTC patients with positive serum TgAb and undetectable serum Tg. CECs were isolated and enriched from peripheral blood with a negative selection system PowerMag. Immunofluorescence staining with anti-epithelial cell adhesion molecule (anti-EpCAM) and anti-thyroid stimulating hormone receptor (anti-TSHR) antibodies were used to define EpCAM+-CECs and TSHR+-CECs. After CECs testing, 25 patients were classified into two groups: recurrence group (n=7) and remission group (n=18) based on biopsy or imaging studies. The diagnostic accuracy and cutoff points of EpCAM+-CECs and TSHR+-CECs were evaluated using receiver operating characteristic (ROC) curves. The optimal cut-off values of CECs were determined by the Youden index (sensitivity+specificity-1). RESULTS The median numbers of EpCAM+-CECs (72.5 vs. 10.75) and TSHR+-CECs (54 vs. 5.25) were significantly increased in recurrence group compared to remission group. The area under the curve (AUC) showed good performance of EpCAM+-CECs (0.937) and TSHR+-CECs (0.825) to discriminate between recurrence and remission. The cut-off value for EpCAM+-CECs and TSHR+-CECs were set at 48cells/ml and 10cells/ml, respectively and showed a sensitivity (EpCAM+-CECs: 85.7%; TSHR+-CECs: 85.7%) and a specificity (EpCAM+-CECs: 100%; TSHR+-CECs: 77.8%) in predicting the recurrence. CONCLUSIONS Our study suggests CECs testing could be a potential biomarker to identify recurrence in PTC patients with positive serum TgAb and undetectable serum Tg.
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Affiliation(s)
- Yan-Rong Li
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Taiwan
| | - Ching-Ping Tseng
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taiwan; Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taiwan; Molecular Medicine Research Center, Chang Gung University, Taiwan; Department of Laboratory Medicine, Chang Gung Memorial Hospital, Taiwan
| | - Hsueh-Ling Hsu
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taiwan
| | - Hung-Chih Lin
- Graduate Institute of Biomedical Science, College of Medicine, Chang Gung University, Taiwan
| | - Yi-An Chen
- Department of Medical Biotechnology and Laboratory Science, College of Medicine, Chang Gung University, Taiwan
| | - Szu-Tah Chen
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Taiwan
| | - Miaw-Jene Liou
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Taiwan
| | - Jen-Der Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Taiwan.
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28
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Sun C, Liao W, Deng Z, Li E, Feng Q, Lei J, Yuan R, Zou S, Mao Y, Shao J, Wu L, Zhang C. The diagnostic value of assays for circulating tumor cells in hepatocellular carcinoma: A meta-analysis. Medicine (Baltimore) 2017; 96:e7513. [PMID: 28723763 PMCID: PMC5521903 DOI: 10.1097/md.0000000000007513] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
PURPOSE Circulating tumor cells (CTCs) are considered potential biomarkers for the detection of hepatocellular carcinoma (HCC). Many studies have attempted to explore this role, but the results are variable. We conducted the first comprehensive meta-analysis to evaluate the diagnostic value of CTC assay for HCC patients. Additional prognostic value was also assessed. EXPERIMENTAL DESIGN All articles included in our study were assessed using QUADAS guidelines after a literature search. Using bivariate generalized linear mixed model and random-effects model, effect measures such as pooled sensitivity/specificity, positive likelihood ratios/negative likelihood ratios (NLRs), diagnostic odds ratios, hazard ratios (HRs), risk ratios, and corresponding 95% confidence intervals (95% CIs) were calculated. We used receiver operating characteristic curves and area under the curve (AUC) to summarize overall test performance. Heterogeneity, publication bias, subgroup, and sensitivity analyses were also performed. RESULTS A total of 2256 subjects including 998 HCC patients in 20 studies were recruited in this meta-analysis. Although the overall diagnostic accuracy of the CTC assay was high (AUC 0.93, 95% CI: [0.90-0.95]), there was a high probability of error rate (NLR 0.33, 95% CI: [0.23, 0.48]). The results were more robust when nonmagnetic-activated isolation was used, compared with magnetic-activated isolation subgroup (NLR: 0.18 vs. 0.41; z = 2.118, P = .034). CTCs positivity was significantly associated with relapse-free survival (HR 2.417, 95% CI: [1.421-3.250]; P < .001), overall survival (HR 3.59, 95% CI: [1.984-6.495]; P < .001), and some clinical characteristics. CONCLUSION CTC assay is not recommended as an independent HCC diagnostic tool, but is associated with poor clinicopathologic characteristics of HCC patients and could indicate poor prognosis.
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Affiliation(s)
- Chi Sun
- Department of Nursing, Second Affiliated Hospital of Nanchang University
| | - Wenjun Liao
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Zefu Deng
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Enliang Li
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Qian Feng
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Jun Lei
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Rongfa Yuan
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Shubing Zou
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Yilei Mao
- Department of Liver Surgery, Peking Union Medical College (PUMC) Hospital, PUMC and Chinese Academy of Medical Sciences, Beijing, China
| | - Jianghua Shao
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Linquan Wu
- Department of General Surgery, Second Affiliated Hospital of Nanchang University, Nanchang
| | - Chao Zhang
- Department of Nursing, Second Affiliated Hospital of Nanchang University
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29
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Rosenbaum MW, Cauley CE, Kulemann B, Liss AS, Castillo CFD, Warshaw AL, Lillemoe KD, Thayer SP, Pitman MB. Cytologic characteristics of circulating epithelioid cells in pancreatic disease. Cancer 2017; 125:332-340. [PMID: 28257167 PMCID: PMC5432380 DOI: 10.1002/cncy.21841] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/25/2017] [Accepted: 01/26/2017] [Indexed: 01/06/2023]
Abstract
BACKGROUND Circulating epithelioid cells (CECs), also known as circulating tumor, circulating cancer, circulating epithelial, or circulating nonhematologic cells, are a prognostic factor in various malignancies that can be isolated via various protocols. In the current study, the authors analyzed the cytomorphologic characteristics of CECs isolated by size in a cohort of patients with benign and malignant pancreatic diseases to determine whether cytomorphological features could predict CEC origin. METHODS Blood samples were collected from 9 healthy controls and 171 patients with pancreatic disease who were presenting for surgical evaluation before treatment. Blood was processed with the ScreenCell size-based filtration device. Evaluable CECs were analyzed in a blinded fashion for cytomorphologic characteristics, including cellularity; nucleoli; nuclear size, irregularity, variability, and hyperchromasia; and nuclear-to-cytoplasmic ratio. Statistical differences between variables were analyzed via the Fisher exact test. RESULTS No CECs were identified among the 9 normal healthy controls. Of the 115 patients with CECs (positive or suspicious for), 25 had nonmalignant disease and 90 had malignancy. There were no significant differences in any of the cytologic criteria noted between groups divided by benign versus malignant, neoplastic versus nonneoplastic, or pancreatic ductal adenocarcinoma versus neuroendocrine tumor. CONCLUSIONS CECs were observed in patients with malignant and nonmalignant pancreatic disease, but not in healthy controls. There were no morphologic differences observed between cells from different pancreatic diseases, suggesting that numerous conditions may be associated with CECs in the circulation and that care must be taken not to overinterpret cells identified by cytomorphology as indicative of circulating tumor cells of pancreatic cancer. Additional studies are required to determine the origin and clinical significance of these cells. Cancer Cytopathol 2017;125:332-340. © 2017 American Cancer Society.
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MESH Headings
- Adenocarcinoma/blood
- Adenocarcinoma/pathology
- Adenoma/blood
- Adenoma/pathology
- Ampulla of Vater/pathology
- Bile Duct Neoplasms/blood
- Bile Duct Neoplasms/pathology
- Carcinoma, Acinar Cell/blood
- Carcinoma, Acinar Cell/pathology
- Carcinoma, Pancreatic Ductal/blood
- Carcinoma, Pancreatic Ductal/pathology
- Case-Control Studies
- Cholangiocarcinoma/blood
- Cholangiocarcinoma/pathology
- Common Bile Duct Neoplasms/blood
- Common Bile Duct Neoplasms/pathology
- Cystadenoma, Serous/blood
- Cystadenoma, Serous/pathology
- Epidermal Cyst
- Humans
- Neoplasms, Cystic, Mucinous, and Serous/blood
- Neoplasms, Cystic, Mucinous, and Serous/pathology
- Neoplastic Cells, Circulating/pathology
- Neuroendocrine Tumors/blood
- Neuroendocrine Tumors/pathology
- Pancreatic Diseases/blood
- Pancreatic Diseases/pathology
- Pancreatic Neoplasms/blood
- Pancreatic Neoplasms/pathology
- Pancreatitis, Chronic/blood
- Pancreatitis, Chronic/pathology
- Prognosis
- Splenic Diseases
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Affiliation(s)
- Matthew W Rosenbaum
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts
| | - Christy E Cauley
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Birte Kulemann
- Department of Surgery, University Hospital Freiburg, Freiburg, Germany
| | - Andrew S Liss
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | | | - Andrew L Warshaw
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Keith D Lillemoe
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - Sarah P Thayer
- Division of Surgical Oncology, Department of Surgery, University of Nebraska Medical Center, Omaha, Nebraska
| | - Martha B Pitman
- Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts
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30
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Wu T, Cheng B, Fu L. Clinical Applications of Circulating Tumor Cells in Pharmacotherapy: Challenges and Perspectives. Mol Pharmacol 2017; 92:232-239. [PMID: 28356334 DOI: 10.1124/mol.116.108142] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 03/22/2017] [Indexed: 12/11/2022] Open
Abstract
Screening for circulating tumor cells (CTCs) has been identified as one approach to ultrasensitive liquid biopsy in real-time monitoring of cancer patients. The detection of CTCs in peripheral blood from cancer patients is promising as a diagnostic tool; however, the application of CTCs in therapeutic treatment still faces serious challenges with respect to specificity and sensitivity. Here, we review the significant roles of CTCs in metastasis and the strengths and weaknesses of the currently available methods for CTC detection and characterization. Moreover, we discuss the clinical application of CTCs as markers for patient prognosis, and we specifically focus on the application of CTCs as indicators in cancer pharmacotherapy. Characterization of the detected CTCs will provide new biologic perspectives and clinical applications for the treatment of cancer patients with metastasis.
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Affiliation(s)
- Tong Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute (T.W., L.F.); and Department of Oral Medicine, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China (T.W., B.C.)
| | - Bin Cheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute (T.W., L.F.); and Department of Oral Medicine, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China (T.W., B.C.)
| | - Liwu Fu
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangdong Esophageal Cancer Institute (T.W., L.F.); and Department of Oral Medicine, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China (T.W., B.C.)
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31
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Bhagwat N, Carpenter EL. Flow Cytometric Methods for Circulating Tumor Cell Isolation and Molecular Analysis. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 994:105-118. [DOI: 10.1007/978-3-319-55947-6_5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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32
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Recent insights into the development of nanotechnology to detect circulating tumor cells. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2016.05.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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33
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Ogle LF, Orr JG, Willoughby CE, Hutton C, McPherson S, Plummer R, Boddy AV, Curtin NJ, Jamieson D, Reeves HL. Imagestream detection and characterisation of circulating tumour cells - A liquid biopsy for hepatocellular carcinoma? J Hepatol 2016; 65:305-13. [PMID: 27132171 DOI: 10.1016/j.jhep.2016.04.014] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Revised: 04/05/2016] [Accepted: 04/14/2016] [Indexed: 12/31/2022]
Abstract
BACKGROUND & AIMS The lack of progress in developing and delivering new therapies for hepatocellular carcinoma (HCC) is in part attributed to the risk related avoidance of tumour biopsy at diagnosis. Circulating tumour cells (CTCs) are a potential source of tumour tissue that could aid biological or biomarker research, treatment stratification and monitoring. METHODS An imaging flow cytometry method, using immunofluorescence of cytokeratin, EpCAM, AFP, glypican-3 and DNA-PK together with analysis of size, morphology and DNA content, for detection of HCC CTCs was developed and applied to 69 patient and 31 control samples. The presence of CTCs as a prognostic indicator was assessed in multivariate analyses encompassing recognised prognostic parameters. RESULTS Between 1 and 1642 CTCs were detected in blood samples from 45/69 HCC patients compared to 0/31 controls. CTCs positive for the epithelial markers cytokeratin and EpCAM were detected in 29% and 18% of patients respectively, while an additional 28% of patients had CTCs negative for all markers other than size and evidence of hyperploidy. CTC number correlated significantly with tumour size and portal vein thrombosis (PVT). The median survival of patients with >1 CTC was 7.5months versus >34months for patients with <1 CTC (p<0.001, log-rank), with significance retained in a multivariate analysis (HR 2.34, 95% CI 1.005-5.425, p=0.049) including tumour size and PVT. CONCLUSIONS The use of multiple parameters enhanced HCC CTC detection sensitivity, revealing biological associations and predictive biomarker potential that may be able to guide stratified medicine decisions and future research. LAY SUMMARY Characteristics of tumour tissues can be used to predict outcomes for individual patients with cancer, as well as help to choose their best treatment. Biopsy of liver cancers carries risks, however, and is usually avoided. Some cancer cells enter the blood, and although they are very rare, we have developed a method of finding and characterising them in patients with liver cancer, which we hope will provide a low risk means of guiding treatment.
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Affiliation(s)
- Laura F Ogle
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - James G Orr
- The Liver Group, Department of Medicine, Freeman Hospital, Newcastle-upon-Tyne Hospitals, NHS Foundation Trust, UK
| | | | - Claire Hutton
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Stuart McPherson
- The Liver Group, Department of Medicine, Freeman Hospital, Newcastle-upon-Tyne Hospitals, NHS Foundation Trust, UK
| | - Ruth Plummer
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK; Northern Centre for Cancer Care, Freeman Hospital, Newcastle-upon-Tyne Hospitals NHS Foundation Trust, UK
| | - Alan V Boddy
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Nicola J Curtin
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - David Jamieson
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK.
| | - Helen L Reeves
- Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK; The Liver Group, Department of Medicine, Freeman Hospital, Newcastle-upon-Tyne Hospitals, NHS Foundation Trust, UK
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Schehr JL, Schultz ZD, Warrick JW, Guckenberger DJ, Pezzi HM, Sperger JM, Heninger E, Saeed A, Leal T, Mattox K, Traynor AM, Campbell TC, Berry SM, Beebe DJ, Lang JM. High Specificity in Circulating Tumor Cell Identification Is Required for Accurate Evaluation of Programmed Death-Ligand 1. PLoS One 2016; 11:e0159397. [PMID: 27459545 PMCID: PMC4961410 DOI: 10.1371/journal.pone.0159397] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 07/02/2016] [Indexed: 12/26/2022] Open
Abstract
Background Expression of programmed-death ligand 1 (PD-L1) in non-small cell lung cancer (NSCLC) is typically evaluated through invasive biopsies; however, recent advances in the identification of circulating tumor cells (CTCs) may be a less invasive method to assay tumor cells for these purposes. These liquid biopsies rely on accurate identification of CTCs from the diverse populations in the blood, where some tumor cells share characteristics with normal blood cells. While many blood cells can be excluded by their high expression of CD45, neutrophils and other immature myeloid subsets have low to absent expression of CD45 and also express PD-L1. Furthermore, cytokeratin is typically used to identify CTCs, but neutrophils may stain non-specifically for intracellular antibodies, including cytokeratin, thus preventing accurate evaluation of PD-L1 expression on tumor cells. This holds even greater significance when evaluating PD-L1 in epithelial cell adhesion molecule (EpCAM) positive and EpCAM negative CTCs (as in epithelial-mesenchymal transition (EMT)). Methods To evaluate the impact of CTC misidentification on PD-L1 evaluation, we utilized CD11b to identify myeloid cells. CTCs were isolated from patients with metastatic NSCLC using EpCAM, MUC1 or Vimentin capture antibodies and exclusion-based sample preparation (ESP) technology. Results Large populations of CD11b+CD45lo cells were identified in buffy coats and stained non-specifically for intracellular antibodies including cytokeratin. The amount of CD11b+ cells misidentified as CTCs varied among patients; accounting for 33–100% of traditionally identified CTCs. Cells captured with vimentin had a higher frequency of CD11b+ cells at 41%, compared to 20% and 18% with MUC1 or EpCAM, respectively. Cells misidentified as CTCs ultimately skewed PD-L1 expression to varying degrees across patient samples. Conclusions Interfering myeloid populations can be differentiated from true CTCs with additional staining criteria, thus improving the specificity of CTC identification and the accuracy of biomarker evaluation.
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Affiliation(s)
- Jennifer L. Schehr
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Zachery D. Schultz
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Jay W. Warrick
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - David J. Guckenberger
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Hannah M. Pezzi
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Jamie M. Sperger
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Erika Heninger
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Anwaar Saeed
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Ticiana Leal
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Kara Mattox
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Anne M. Traynor
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Toby C. Campbell
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Scott M. Berry
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - David J. Beebe
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Joshua M. Lang
- Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
- * E-mail:
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