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Hu X, Zhang H, Wang Y, Lin Y, Li Q, Li L, Zeng G, Ou R, Cheng X, Zhang Y, Jin X. Effects of blood-processing protocols on cell-free DNA fragmentomics in plasma: Comparisons of one- and two-step centrifugations. Clin Chim Acta 2024; 560:119729. [PMID: 38754575 DOI: 10.1016/j.cca.2024.119729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 05/18/2024]
Abstract
BACKGROUND Cell-free DNA (cfDNA) fragmentomic characteristics are promising analytes with abundant physiological signals for non-invasive disease diagnosis and monitoring. Previous studies on plasma cfDNA fragmentomics commonly employed a two-step centrifugation process for removing cell debris, involving a low-speed centrifugation followed by a high-speed centrifugation. However, the effects of centrifugation conditions on the analysis of cfDNA fragmentome remain uncertain. METHODS We collected blood samples from 10 healthy individuals and divided each sample into two aliquots for plasma preparation with one- and two-step centrifugation processes. We performed whole genome sequencing (WGS) of the plasma cfDNA in the two groups and comprehensively compared the cfDNA fragmentomic features. Additionally, we reanalyzed the fragmentomic features of cfDNA from 16 healthy individuals and 16 COVID-19 patients, processed through one- and two-step centrifugation in our previous study, to investigate the impact of centrifugation on disease signals. RESULTS Our results showed that there were no significant differences observed in the characteristics of nuclear cfDNA, including size, motif diversity score (MDS) of end motifs, and genome distribution, between plasma samples treated with one- and two-step centrifugation. The cfDNA size shortening in COVID-19 patients was observed in plasma samples with one- and two-step centrifugation methods. However, we observed a significantly higher relative abundance and longer size of cell-free mitochondrial DNA (mtDNA) in the one-step samples compared to the two-step samples. This difference in mtDNA caused by the one- and two-step centrifugation methods surpasses the pathological difference between COVID-19 patients and healthy individuals. CONCLUSIONS Our findings indicate that one-step low-speed centrifugation is a simple and potentially suitable method for analyzing nuclear cfDNA fragmentation characteristics. These results offer valuable guidance for cfDNA research in various clinical scenarios.
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Affiliation(s)
- Xintao Hu
- Engineering Research Center of Text Computing & Cognitive Intelligence, Ministry of Education, Key Laboratory of Intelligent Medical Image Analysis and Precise Diagnosis of Guizhou Province, State Key Laboratory of Public Big Data, College of Computer Science and Technology, Guizhou University, Guiyang 550025, China; BGI Research, Shenzhen 518083, China
| | | | | | - Yu Lin
- BGI Research, Shenzhen 518083, China
| | - Qiuyan Li
- BGI Research, Shenzhen 518083, China
| | | | | | - Rijing Ou
- BGI Research, Shenzhen 518083, China
| | - Xinyu Cheng
- Engineering Research Center of Text Computing & Cognitive Intelligence, Ministry of Education, Key Laboratory of Intelligent Medical Image Analysis and Precise Diagnosis of Guizhou Province, State Key Laboratory of Public Big Data, College of Computer Science and Technology, Guizhou University, Guiyang 550025, China
| | - Yan Zhang
- BGI Research, Shenzhen 518083, China.
| | - Xin Jin
- BGI Research, Shenzhen 518083, China; School of Medicine, South China University of Technology, Guangzhou 510006, China.
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2
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Huygens S, Schauwvlieghe A, Wlazlo N, Moors I, Boelens J, Reynders M, Chong GL, Klaassen CHW, Rijnders BJA. Diagnostic Value of Microbial Cell-free DNA Sequencing for Suspected Invasive Fungal Infections: A Retrospective Multicenter Cohort Study. Open Forum Infect Dis 2024; 11:ofae252. [PMID: 38868302 PMCID: PMC11166502 DOI: 10.1093/ofid/ofae252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 05/01/2024] [Indexed: 06/14/2024] Open
Abstract
Background An early diagnosis and treatment of invasive fungal disease (IFD) is associated with improved outcome, but the moderate sensitivity of noninvasive diagnostic tests makes this challenging. Invasive diagnostic procedures such as bronchoalveolar lavage (BAL) have a higher yield but are not without risk. The detection and sequencing of microbial cell-free DNA (mcfDNA) may facilitate a noninvasive diagnosis. Materials In a prospective observational study, we collected plasma in the 120 hours preceding or following a BAL in patients with hematological malignancies suspected for a pulmonary IFD. The EORTC/MSGERC2020 criteria were used for IFD classification. Sequencing was performed by Karius (Redwood City, CA) using their Karius Test (KT) on plasma and a "research use only test" on BAL fluid if available. Cases with a probable/proven IFD were identified based on standard diagnostic tests on serum and BAL (microscopy, polymerase chain reaction, galactomannan, culture) and used to calculate the sensitivity, specificity, and additional diagnostic value of the KT. Results Of 106 patients enrolled, 39 (37%) had a proven/probable invasive aspergillosis, 7 (7%) a non-Aspergillus IFD, and 4 (4%) a mixed IFD. The KT detected fungal mcfDNA in 29 (28%) patients. Compared with usual diagnostic tests, the sensitivity and specificity were 44.0% (95% confidence interval [CI], 31.2-57.7) and 96.6% (95% CI, 88.5%-99.1%). Sensitivity of the KT was higher in non-Aspergillus IFD (Mucorales:2/3, Pneumocystis jirovecii: 3/5). On BAL, the sensitivity was 72.2% (95% CI, 62.1-96.3), and specificity 83.3% (95% CI, 49.1-87.5). Conclusions Sequencing of mcfDNA may facilitate a noninvasive diagnosis of IFD in particular non-Aspergillus IFD. However, on plasma and similar to currently available diagnostics, it cannot be used as a "rule-out" test.
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Affiliation(s)
- Sammy Huygens
- Department of Internal Medicine, Section of Infectious Diseases and Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | | | - Nick Wlazlo
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Ine Moors
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Jerina Boelens
- Department of Microbiology, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Marijke Reynders
- Department of Laboratory Medicine, Medical Microbiology, AZ St-Jan Brugge-Oostende Hospital, Bruges, Belgium
| | - Ga-Lai Chong
- Department of Medical Microbiology & Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Corné H W Klaassen
- Department of Medical Microbiology & Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Bart J A Rijnders
- Department of Internal Medicine, Section of Infectious Diseases and Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
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3
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Suartz CV, Martinez LM, Cordeiro MD, Botelho LAA, Gallutti FP, Mota JM, Leite KRM, Toren P, Nahas WC, Ribeiro-Filho LA. Honing the Hunt: A Comprehensive Review of Cell-free Tumor DNA to Predict Neoadjuvant Therapy Efficacy in Bladder Cancer. Clin Genitourin Cancer 2024; 22:102087. [PMID: 38688207 DOI: 10.1016/j.clgc.2024.102087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Accepted: 03/29/2024] [Indexed: 05/02/2024]
Abstract
OBJECTIVE To provide an updated view on the role of cell-free DNA as a predictor of pathological response to neoadjuvant therapy in patients with muscle-invasive bladder cancer. METHODS A systematic review was conducted from September 2023 to October 2023. Selected studies from the MEDLINE and clinical trial databases were critically analyzed regarding the clinical efficacy of cell-free DNA as a predictive instrument after neoadjuvant therapy in bladder cancer. The methodological quality assessment was based on the QUADAS-2 tool. RESULTS In this systematic review, we analyzed 5 studies encompassing a cumulative patient cohort of 780 individuals diagnosed with muscle-invasive bladder cancer, with a median follow-up ranging from 6 to 23 months. Among these studies, 4 primarily focused on detecting and analyzing circulating tumor DNA in plasma, while 1 study uniquely utilized cell-free tumor DNA in urine samples. The diagnostic accuracy of cell-free DNA in plasma ranges from 79% to 100%, indicating a variable yet significant predictive capability. In contrast, the study utilizing urinary cell-free DNA demonstrated an accuracy of 81% in predicting treatment response post-neoadjuvant chemotherapy. CONCLUSION Cell-free DNA is emerging as a valuable biomarker for predicting response to neoadjuvant chemotherapy in patients with muscle-invasive bladder tumors.
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Affiliation(s)
- Caio V Suartz
- Division of Urology, Institute of Cancer of São Paulo, University of São Paulo, Brazil; Division of Urology, Department of Surgery, CHU de Québec - Université Laval, Quebec City, QC, Canada.
| | - Lucas Motta Martinez
- Division of Urology, Institute of Cancer of São Paulo, University of São Paulo, Brazil
| | - Maurício D Cordeiro
- Division of Urology, Institute of Cancer of São Paulo, University of São Paulo, Brazil
| | - Luiz A A Botelho
- Division of Urology, Institute of Cancer of São Paulo, University of São Paulo, Brazil
| | - Fábio P Gallutti
- Division of Urology, Institute of Cancer of São Paulo, University of São Paulo, Brazil
| | - José M Mota
- Genitourinary Medical Oncology Service, Institute of Cancer of São Paulo, University of São Paulo, Brazil
| | - Katia R M Leite
- Laboratory of Medical Investigation (LIM55), Urology Department, University of Sao Paulo Medical School, Sao Paulo, Brazil
| | - Paul Toren
- Division of Urology, Department of Surgery, CHU de Québec - Université Laval, Quebec City, QC, Canada
| | - William C Nahas
- Division of Urology, Institute of Cancer of São Paulo, University of São Paulo, Brazil
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4
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George NG, Rishi B, Singh A, Vishmaya S, Kumar R, Kushwaha N, Kaur M, Bhardwaj R, Jain A, Jain A, Chaudhry S, Misra A. Early prognosis prediction in acute myeloid and acute lymphoid leukemia patients using cell-free DNA concentration ratios. Front Mol Biosci 2024; 10:1333943. [PMID: 38317776 PMCID: PMC10840420 DOI: 10.3389/fmolb.2023.1333943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/29/2023] [Indexed: 02/07/2024] Open
Abstract
Background: Cell-free DNA (cfDNA) is a promising biomarker for disease prediction in many cancers, including acute leukemia (acute myeloid leukemia [AML] and acute lymphoblastic leukemia [ALL]). This study investigated the role of cfDNA in predicting relapse or unfavorable outcomes in acute leukemia patients upon initial diagnosis. Methods: Paired peripheral blood samples of 25 patients with ALL and AML were compared at baseline and induction/follow-up and clinically correlated with clinicopathological and outcome variables according to the risk category. cfDNA was isolated using commercial cfDNA extraction kits. The probability of poor outcomes in high-risk groups and a cut-off value for risk stratification minimal residual disease (MRD) positivity and outcome prediction were derived. Results: Twenty-five patients diagnosed with AML and ALL were risk-stratified based on NCI risk stratification, and of these 25 patients, 4 patients were of standard risk (SR) and 1 patient was of intermediate risk (IR), while a majority of patients (80%) were of high risk (HR). Of these, four HR patients passed away. The ratio of cfDNA reduction at baseline and the end of induction was a strong predictor of poor outcomes in high-risk patients, regardless of the MRD status. A cfDNA ratio score of 2.6 or higher at diagnosis/remission predicted poor outcomes, with higher accuracy than conventional MRD detection by flow cytometry. Conclusion: A higher cfDNA ratio at diagnosis/remission or at baseline predicts poor outcomes in acute leukemia patients. This pilot study suggests that cfDNA ratio scoring may be a useful tool for predicting prognosis in acute leukemia patients, regardless of the MRD status.
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Affiliation(s)
| | - Bhavika Rishi
- ICMR‐National Institute of Pathology, New Delhi, India
| | - Amitabh Singh
- Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Sree Vishmaya
- Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Rakesh Kumar
- ICMR‐National Institute of Pathology, New Delhi, India
| | | | - Manpreet Kaur
- ICMR‐National Institute of Pathology, New Delhi, India
| | | | - Ankur Jain
- Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Aditi Jain
- Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Sumita Chaudhry
- Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
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5
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Mansur A, Radovanovic I. The expansion of liquid biopsies to vascular care: an overview of existing principles, techniques and potential applications to vascular malformation diagnostics. Front Genet 2024; 15:1348096. [PMID: 38304336 PMCID: PMC10832994 DOI: 10.3389/fgene.2024.1348096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/08/2024] [Indexed: 02/03/2024] Open
Abstract
Vascular malformations are congenital lesions that occur due to mutations in major cellular signalling pathways which govern angiogenesis, cell proliferation, motility, and cell death. These pathways have been widely studied in oncology and are substrates for various small molecule inhibitors. Given their common molecular biology, there is now a potential to repurpose these cancer drugs for vascular malformation care; however, a molecular diagnosis is required in order to tailour specific drugs to the individual patient's mutational profile. Liquid biopsies (LBs), emerging as a transformative tool in the field of oncology, hold significant promise in this feat. This paper explores the principles and technologies underlying LBs and evaluates their potential to revolutionize the management of vascular malformations. The review begins by delineating the fundamental principles of LBs, focusing on the detection and analysis of circulating biomarkers such as cell-free DNA, circulating tumor cells, and extracellular vesicles. Subsequently, an in-depth analysis of the technological advancements driving LB platforms is presented. Lastly, the paper highlights the current state of research in applying LBs to various vascular malformations, and uses the aforementioned principles and techniques to conceptualize a liquid biopsy framework that is unique to vascular malformation research and clinical care.
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Affiliation(s)
- Ann Mansur
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine and Pathobiology, School of Graduate Studies, University of Toronto, Toronto, ON, Canada
| | - Ivan Radovanovic
- Division of Neurosurgery, Department of Surgery, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Neurosurgery, Department of Surgery, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
- Krembil Brain Institute, University Health Network, Toronto, ON, Canada
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Chang L, Zhang X, He L, Ma Q, Fang T, Jiang C, Ma Z, Li Q, Wu C, Tao J. Prognostic Value of ctDNA Detection in Patients With Locally Advanced Rectal Cancer Undergoing Neoadjuvant Chemoradiotherapy: A Systematic Review and Meta-analysis. Oncologist 2023; 28:e1198-e1208. [PMID: 37294663 PMCID: PMC10712909 DOI: 10.1093/oncolo/oyad151] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/30/2023] [Indexed: 06/11/2023] Open
Abstract
BACKGROUND Circulating tumor DNA (ctDNA) is increasingly used as a biomarker for metastatic rectal cancer and has recently shown promising results in the early detection of recurrence risk. METHODS We conducted a systematic review and meta-analysis to explore the prognostic value of ctDNA detection in LARC patients undergoing neoadjuvant chemoradiotherapy (nCRT). We systematically searched electronic databases for observational or interventional studies that included LARC patients undergoing nCRT. Study selection according to the PRISMA guidelines and quality assessment of the REMARK tool for biomarker studies. The primary endpoint was the impact of ctDNA detection at different time points (baseline, post-nCRT, post-surgery) on relapse-free survival (RFS) and overall survival (OS). The secondary endpoint was to study the association between ctDNA detection and pathological complete response(pCR) at different time points. RESULTS After further review and analysis of the 625 articles initially retrieved, we finally included 10 eligible studies. We found no significant correlation between ctDNA detection at baseline and long-term survival outcomes or the probability of achieving a pCR. However, the presence of ctDNA at post-nCRT was associated with worse RFS (HR = 9.16, 95% CI, 5.48-15.32), worse OS (HR = 8.49, 95% CI, 2.20-32.72), and worse pCR results (OR = 0.40, 95%CI, 0.18-0.89). The correlation between the presence of ctDNA at post-surgery and worse RFS was more obvious (HR = 14.94; 95% CI, 7.48-9.83). CONCLUSIONS Our results suggest that ctDNA detection is a promising biomarker for the evaluation of response and prognosis in LARC patients undergoing nCRT, which merits further evaluation in the following prospective trials.
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Affiliation(s)
- Lele Chang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Xuemei Zhang
- Department of Thoracic Radiotherapy, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Lei He
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Qian Ma
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Tianyuan Fang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Chengzhi Jiang
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Zhigang Ma
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Qingwei Li
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Chunlong Wu
- Department of Endoscopic Room, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
| | - Ji Tao
- Department of Gastrointestinal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, People’s Republic of China
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7
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Bronkhorst AJ, Holdenrieder S. The changing face of circulating tumor DNA (ctDNA) profiling: Factors that shape the landscape of methodologies, technologies, and commercialization. MED GENET-BERLIN 2023; 35:201-235. [PMID: 38835739 PMCID: PMC11006350 DOI: 10.1515/medgen-2023-2065] [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] [Indexed: 06/06/2024]
Abstract
Liquid biopsies, in particular the profiling of circulating tumor DNA (ctDNA), have long held promise as transformative tools in cancer precision medicine. Despite a prolonged incubation phase, ctDNA profiling has recently experienced a strong wave of development and innovation, indicating its imminent integration into the cancer management toolbox. Various advancements in mutation-based ctDNA analysis methodologies and technologies have greatly improved sensitivity and specificity of ctDNA assays, such as optimized preanalytics, size-based pre-enrichment strategies, targeted sequencing, enhanced library preparation methods, sequencing error suppression, integrated bioinformatics and machine learning. Moreover, research breakthroughs have expanded the scope of ctDNA analysis beyond hotspot mutational profiling of plasma-derived apoptotic, mono-nucleosomal ctDNA fragments. This broader perspective considers alternative genetic features of cancer, genome-wide characterization, classical and newly discovered epigenetic modifications, structural variations, diverse cellular and mechanistic ctDNA origins, and alternative biospecimen types. These developments have maximized the utility of ctDNA, facilitating landmark research, clinical trials, and the commercialization of ctDNA assays, technologies, and products. Consequently, ctDNA tests are increasingly recognized as an important part of patient guidance and are being implemented in clinical practice. Although reimbursement for ctDNA tests by healthcare providers still lags behind, it is gaining greater acceptance. In this work, we provide a comprehensive exploration of the extensive landscape of ctDNA profiling methodologies, considering the multitude of factors that influence its development and evolution. By illuminating the broader aspects of ctDNA profiling, the aim is to provide multiple entry points for understanding and navigating the vast and rapidly evolving landscape of ctDNA methodologies, applications, and technologies.
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Affiliation(s)
- Abel J Bronkhorst
- Technical University Munich Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center Lazarettstr. 36 80636 Munich Germany
| | - Stefan Holdenrieder
- Technical University Munich Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center Lazarettstr. 36 80636 Munich Germany
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8
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Kalashnikova E, Aushev VN, Malashevich AK, Tin A, Krinshpun S, Salari R, Scalise CB, Ram R, Malhotra M, Ravi H, Sethi H, Sanchez S, Hagelstrom RT, Brevnov M, Rabinowitz M, Moshkevich S, Zimmermann BG, Liu MC, Aleshin A. Correlation between variant allele frequency and mean tumor molecules with tumor burden in patients with solid tumors. Mol Oncol 2023. [PMID: 38037739 DOI: 10.1002/1878-0261.13557] [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: 12/21/2022] [Revised: 10/03/2023] [Accepted: 11/22/2023] [Indexed: 12/02/2023] Open
Abstract
Several studies have demonstrated the prognostic value of circulating tumor DNA (ctDNA); however, the correlation of mean tumor molecules (MTM)/ml of plasma and mean variant allele frequency (mVAF; %) with clinical parameters is yet to be understood. In this study, we analyzed ctDNA data in a pan-cancer cohort of 23 543 patients who had ctDNA testing performed using a personalized, tumor-informed assay (Signatera™, mPCR-NGS assay). For ctDNA-positive patients, the correlation between MTM/ml and mVAF was examined. Two subanalyses were performed: (a) to establish the association of ctDNA with tumor volume and (b) to assess the correlation between ctDNA dynamics and patient outcomes. On a global cohort, a positive correlation between MTM/ml and mVAF was observed. Among 18 426 patients with longitudinal ctDNA measurements, 13.3% had discordant trajectories between MTM/ml and mVAF at subsequent time points. In metastatic patients receiving immunotherapy (N = 51), changes in ctDNA levels expressed both in MTM/ml and mVAF showed a statistically significant association with progression-free survival; however, the correlation with MTM/ml was numerically stronger.
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Yaghoubi Naei V, Bordhan P, Mirakhorli F, Khorrami M, Shrestha J, Nazari H, Kulasinghe A, Ebrahimi Warkiani M. Advances in novel strategies for isolation, characterization, and analysis of CTCs and ctDNA. Ther Adv Med Oncol 2023; 15:17588359231192401. [PMID: 37692363 PMCID: PMC10486235 DOI: 10.1177/17588359231192401] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 07/19/2023] [Indexed: 09/12/2023] Open
Abstract
Over the past decade, the detection and analysis of liquid biopsy biomarkers such as circulating tumor cells (CTCs) and circulating tumor DNA (ctDNA) have advanced significantly. They have received recognition for their clinical usefulness in detecting cancer at an early stage, monitoring disease, and evaluating treatment response. The emergence of liquid biopsy has been a helpful development, as it offers a minimally invasive, rapid, real-time monitoring, and possible alternative to traditional tissue biopsies. In resource-limited settings, the ideal platform for liquid biopsy should not only extract more CTCs or ctDNA from a minimal sample volume but also accurately represent the molecular heterogeneity of the patient's disease. This review covers novel strategies and advancements in CTC and ctDNA-based liquid biopsy platforms, including microfluidic applications and comprehensive analysis of molecular complexity. We discuss these systems' operational principles and performance efficiencies, as well as future opportunities and challenges for their implementation in clinical settings. In addition, we emphasize the importance of integrated platforms that incorporate machine learning and artificial intelligence in accurate liquid biopsy detection systems, which can greatly improve cancer management and enable precision diagnostics.
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Affiliation(s)
- Vahid Yaghoubi Naei
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
- Faculty of Medicine, Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Pritam Bordhan
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
- Faculty of Science, Institute for Biomedical Materials & Devices, University of Technology Sydney, Australia
| | - Fatemeh Mirakhorli
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Motahare Khorrami
- Immunology Research Center, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Jesus Shrestha
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Hojjatollah Nazari
- School of Biomedical Engineering, University of Technology Sydney, Sydney, Australia
| | - Arutha Kulasinghe
- Faculty of Medicine, Frazer Institute, The University of Queensland, Brisbane, QLD, Australia
| | - Majid Ebrahimi Warkiani
- School of Biomedical Engineering, University of Technology Sydney, 1, Broadway, Ultimo New South Wales 2007, Australia
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10
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Su S, Xuan Y, Fan X, Bao H, Tang H, Lv X, Ren W, Chen F, Shao Y, Wang T, Wang L. Testing the generalizability of cfDNA fragmentomic features across different studies for cancer early detection. Genomics 2023; 115:110662. [PMID: 37270068 DOI: 10.1016/j.ygeno.2023.110662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 05/12/2023] [Accepted: 05/27/2023] [Indexed: 06/05/2023]
Abstract
cfDNA fragmentomic features have been used in cancer detection models; however, the generalizability of the models needs to be tested. We proposed a type of cfDNA fragmentomic feature named chromosomal arm-level fragment size distribution (ARM-FSD), evaluated and compared its performance and generalizability for lung cancer and pan-cancer detection with existing cfDNA fragmentomic features (as reference) by using cohorts from different institutions. The ARM-FSD lung cancer model outperformed the reference model by ∼10% when being tested by two external cohorts (AUC: 0.97 vs. 0.86; 0.87 vs. 0.76). For pan-cancer detection, the performance of the ARM-FSD based model is consistently higher than the reference (AUC: 0.88 vs. 0.75, 0.98 vs. 0.63) in a pan-cancer and a lung cancer external validation cohort, indicating that ARM-FSD model produces stable performance across multiple cohorts. Our study reveals ARM-FSD based models have a higher generalizability, and highlights the necessity of cross-study validation for predictive model development.
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Affiliation(s)
- Shu Su
- The Comprehensive Cancer Center of Nanjing Drum Tower Hospital, Medical School of Nanjing University & Clinical Center Institute of Nanjing University, Nanjing, China
| | - Yulong Xuan
- Department of Thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Xiaojun Fan
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing 210032, Jiangsu, China
| | - Hua Bao
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing 210032, Jiangsu, China
| | - Haimeng Tang
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing 210032, Jiangsu, China
| | - Xin Lv
- The Comprehensive Cancer Center of Nanjing Drum Tower Hospital, Medical School of Nanjing University & Clinical Center Institute of Nanjing University, Nanjing, China
| | - Wei Ren
- The Comprehensive Cancer Center of Nanjing Drum Tower Hospital, Medical School of Nanjing University & Clinical Center Institute of Nanjing University, Nanjing, China
| | - Fangjun Chen
- The Comprehensive Cancer Center of Nanjing Drum Tower Hospital, Medical School of Nanjing University & Clinical Center Institute of Nanjing University, Nanjing, China
| | - Yang Shao
- Geneseeq Research Institute, Nanjing Geneseeq Technology Inc., Nanjing 210032, Jiangsu, China; School of Public Health, Nanjing Medical University, Nanjing 211166, Jiangsu, China
| | - Tao Wang
- Department of Thoracic Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China.
| | - Lifeng Wang
- The Comprehensive Cancer Center of Nanjing Drum Tower Hospital, Medical School of Nanjing University & Clinical Center Institute of Nanjing University, Nanjing, China.
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11
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Cohen R, Platell CF, McCoy MJ, Meehan K, Fuller K. Circulating tumour DNA in colorectal cancer management. Br J Surg 2023; 110:773-783. [PMID: 37190784 PMCID: PMC10364542 DOI: 10.1093/bjs/znad126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 01/17/2023] [Accepted: 04/28/2023] [Indexed: 05/17/2023]
Abstract
Circulating tumour DNA analysis can be performed using two opposing paradigms: tumour-informed and tumour-agnostic approaches. The first requires sequencing data from the primary tumour sample to identify tumour DNA in circulation, whereas the latter occurs without previous primary tumour genetic profiling.
Several preanalytical and laboratory considerations need to be taken into account before proceeding with in-house circulating tumour DNA analysis.
Detection of circulating tumour DNA after curative resection is associated with a significant risk of recurrence. For those with stage II disease and detectable postoperative circulating tumour DNA, administration of adjuvant chemotherapy results in a reduction in the number of patients receiving chemotherapy while providing non-inferior recurrence-free survival compared with standard histopathological decision-making algorithms.
Monitoring circulating tumour DNA during post-treatment surveillance may provide a significantly earlier diagnosis of recurrence.
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Affiliation(s)
- Ryan Cohen
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
- Colorectal Cancer Unit, St John of God Subiaco Hospital, Perth, Western Australia, Australia
| | - Cameron F Platell
- Colorectal Cancer Unit, St John of God Subiaco Hospital, Perth, Western Australia, Australia
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
| | - Melanie J McCoy
- Colorectal Cancer Unit, St John of God Subiaco Hospital, Perth, Western Australia, Australia
- School of Medicine, University of Western Australia, Perth, Western Australia, Australia
| | - Katie Meehan
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
| | - Kathy Fuller
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia
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12
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Cho YG, Park J, Han JY, Kim TY. Evaluation of the Analytical Performance of Oncomine Lung cfDNA Assay for Detection of Plasma EGFR Mutations. Genes (Basel) 2023; 14:1219. [PMID: 37372399 DOI: 10.3390/genes14061219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND The clinical utility of circulating tumor DNA (ctDNA) in the early detection of tumor mutations for targeted therapy and the monitoring of tumor recurrence has been reported. However, the analytical validation of ctDNA assays is required for clinical application. METHODS This study evaluated the analytical performance of the Oncomine Lung cfDNA Assay compared with the cobas®EGFR Mutation Test v2. The analytical specificity and sensitivity were estimated using commercially pre-certified reference materials. The comparative evaluation of the two assays was carried out using reference materials and plasma derived from patients diagnosed with lung cancer. RESULTS Using 20 ng of input cell-free DNA (cfDNA), the analytical sensitivities for EGFR mutations with variant allele frequencies (VAFs) of 1% and 0.1% were 100% and 100%, respectively. With VAFs of 1.2% and 0.1% using 20 ng of input cfDNA, seven out of nine different mutations in six driver genes were identified in the Oncomine Lung cfDNA Assay. The two assays showed 100% concordance in 16 plasma samples clinically. Furthermore, various PIK3CA and/or TP53 mutations were identified only in the Oncomine Lung cfDNA Assay. CONCLUSIONS The Oncomine Lung cfDNA Assay can be used to identify plasma EGFR mutations in patients with lung cancer, although further large-scale studies are required to evaluate the analytical validity for other types of aberrations and genes using clinical samples.
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Affiliation(s)
- Yong Gon Cho
- Department of Laboratory Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
- Research Institute of Clinical Medicine, Jeonbuk National University-Biomedical Research Institute, Jeonbuk National University Hospital, Jeonju 54907, Republic of Korea
| | - Joonhong Park
- Department of Laboratory Medicine, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
| | - Ji Yoon Han
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Tae Yun Kim
- Department of Thoracic and Cardiovascular Surgery, Jeonbuk National University Medical School and Hospital, Jeonju 54907, Republic of Korea
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13
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Nigro MC, Marchese PV, Deiana C, Casadio C, Galvani L, Di Federico A, De Giglio A. Clinical Utility and Application of Liquid Biopsy Genotyping in Lung Cancer: A Comprehensive Review. LUNG CANCER (AUCKLAND, N.Z.) 2023; 14:11-25. [PMID: 36762267 PMCID: PMC9904307 DOI: 10.2147/lctt.s388047] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 01/26/2023] [Indexed: 02/05/2023]
Abstract
Precision medicine has revolutionized the therapeutic management of cancer patients with a major impact on non-small cell lung cancer (NSCLC), particularly lung adenocarcinoma, where advances have been remarkable. Tissue biopsy, required for tumor molecular testing, has significant limitations due to the difficulty of the biopsy site or the inadequacy of the histological specimen. In this context, liquid biopsy, consisting of the analysis of tumor-released materials circulating in body fluids, such as blood, is increasingly emerging as a valuable and non-invasive biomarker for detecting circulating tumor DNA (ctDNA) carrying molecular tumor signatures. In advanced/metastatic NSCLC, liquid biopsy drives target therapy by monitoring response to treatment and identifying eventual genomic mechanisms of resistance. In addition, recent data have shown a significant ability to detect minimal residual disease in early-stage lung cancer, underlying the potential application of liquid biopsy in the adjuvant setting, in early detection of recurrence, and also in the screening field. In this article, we present a review of the currently available data about the utility and application of liquid biopsy in lung cancer, with a particular focus on the approach to different techniques of analysis for liquid biopsy and a comparison with tissue samples as well as the potential practical uses in early and advanced/metastatic NSCLC.
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Affiliation(s)
- Maria Concetta Nigro
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy
| | - Paola Valeria Marchese
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy,Correspondence: Paola Valeria Marchese, Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Via Albertoni 15, Bologna, 40138, Italy, Email
| | - Chiara Deiana
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy
| | - Chiara Casadio
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy
| | - Linda Galvani
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy
| | - Alessandro Di Federico
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy
| | - Andrea De Giglio
- Department of Experimental, Diagnostic and Specialty Medicine, S.Orsola-Malpighi University Hospital, University of Bologna, Bologna, 40138, Italy,Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, 40138, Italy
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14
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R HC, Kumar S U, R G, Naayanan PJ, Sathiyarajeswaren P, Devi MSS, K SS, Doss C GP. An integrated investigation of structural and pathway alteration caused by PIK3CA and TP53 mutations identified in cfDNA of metastatic breast cancer. J Cell Biochem 2023; 124:188-204. [PMID: 36563059 DOI: 10.1002/jcb.30354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/12/2022] [Accepted: 11/24/2022] [Indexed: 12/24/2022]
Abstract
In peripheral blood, cell-free DNA (cfDNA) contains circulating tumor DNA (ctDNA), which indicates molecular abnormalities in metastatic breast tumor tissue. The sequencing of cfDNA of Metastatic Breast Cancer (MBC) patients allows assessment of therapy response and noninvasive treatment. In the proposed study, clinically significant alterations in PIK3CA and TP53 genes associated with MBC resulting in a missense substitution of His1047Arg and Arg282Trp from an next-generation sequencing-based multi-gene panel were reported in a cfDNA of a patient with MBC. To investigate the impact of the reported mutation, we used molecular docking, molecular dynamics simulation, network analysis, and pathway analysis. Molecular Docking analysis determined the distinct binding pattern revealing H1047R-ATP complex has a higher number of Hydrogen bonds (H-bonds) and binding affinity with a slight difference compared to the PIK3CA-ATP complex. Following, molecular dynamics simulation for 200 ns, of which H1047R-ATP complex resulted in the instability of PIK3CA. Similarly, for TP53 mutant R282W, the zinc-free state (apo) and zinc-bounded (holo) complexes were investigated for conformational change between apo and holo complexes, of which the holo complex mutant R282W was unstable. To validate the conformational change of PIK3CA and TP53, 80% mutation of H1047R in the kinase domain of p110α expressed ubiquitously in PIK3CA protein that alters PI3K pathway, while R282W mutation in DNA binding helix (H2) region of P53 protein inhibits the transcription factor in P53 pathway causing MBC. According to our findings, the extrinsic (hypoxia, oxidative stress, and acidosis); intrinsic factors (MYC amplification) in PIK3CA and TP53 mutations will provide potential insights for developing novel therapeutic methods for MBC therapy.
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Affiliation(s)
- Hephzibah Cathryn R
- Laboratory of Integrative Genomics, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Udhaya Kumar S
- Laboratory of Integrative Genomics, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | - Gnanasambandan R
- Laboratory of Integrative Genomics, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
| | | | | | - M S Shree Devi
- Siddha Central Research Institute (CCRS), Chennai, Tamil Nadu, India
| | - Satish Srinivas K
- Department of Radiation Oncology, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai, India
| | - George Priya Doss C
- Laboratory of Integrative Genomics, Department of Integrative Biology, School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, Tamil Nadu, India
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15
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Kramer A, Schuuring E, Vessies DCL, van der Leest P, Geerlings MJ, Rozendal P, Lanfermeijer M, Linders TC, van Kempen LC, Fijneman RJA, Ligtenberg MJL, Meijer GA, van den Broek D, Retèl VP, Coup VMH. A Micro-Costing Framework for Circulating Tumor DNA Testing in Dutch Clinical Practice. J Mol Diagn 2023; 25:36-45. [PMID: 36402278 DOI: 10.1016/j.jmoldx.2022.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 07/11/2022] [Accepted: 10/04/2022] [Indexed: 11/18/2022] Open
Abstract
Circulating tumor DNA (ctDNA) is a promising new biomarker with multiple potential applications in cancer care. Estimating total cost of ctDNA testing is necessary for reimbursement and implementation, but challenging because of variations in workflow. We aimed to develop a micro-costing framework for consistent cost calculation of ctDNA testing. First, the foundation of the framework was built, based on the complete step-wise diagnostic workflow of ctDNA testing. Second, the costing method was set up, including costs for personnel, materials, equipment, overhead, and failures. Third, the framework was evaluated by experts and applied to six case studies, including PCR-, mass spectrometry-, and next-generation sequencing-based platforms, from three Dutch hospitals. The developed ctDNA micro-costing framework includes the diagnostic workflow from blood sample collection to diagnostic test result. The framework was developed from a Dutch perspective and takes testing volume into account. An open access tool is provided to allow for laboratory-specific calculations to explore the total costs of ctDNA testing specific workflow parameters matching the setting of interest. It also allows to straightforwardly assess the impact of alternative prices or assumptions on the cost per sample by simply varying the input parameters. The case studies showed a wide range of costs, from €168 to €7638 ($199 to $9124) per sample, and generated information. These costs are sensitive to the (coverage of) platform, setting, and testing volume.
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Affiliation(s)
- Astrid Kramer
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Amsterdam, the Netherlands.
| | - Ed Schuuring
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Daan C L Vessies
- Department of Laboratory Medicine, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Paul van der Leest
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | | | - Pim Rozendal
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands; Department of Pulmonary Diseases, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Mirthe Lanfermeijer
- Department of Laboratory Medicine, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Theodora C Linders
- Department of Laboratory Medicine, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Léon C van Kempen
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - Remond J A Fijneman
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Marjolijn J L Ligtenberg
- Department of Human Genetics, Radboudumc, Nijmegen, the Netherlands; Department of Pathology, Radboudumc, Nijmegen, the Netherlands
| | - Gerrit A Meijer
- Department of Pathology, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Daan van den Broek
- Department of Laboratory Medicine, The Netherlands Cancer Institute, Amsterdam, the Netherlands
| | - Valesca P Retèl
- Department of Psychosocial Research and Epidemiology, The Netherlands Cancer Institute, Amsterdam, the Netherlands; Department of Health Technology and Services Research, University of Twente, Enschede, the Netherlands
| | - Veerle M H Coup
- Department of Epidemiology and Data Science, Amsterdam University Medical Centers, Amsterdam, the Netherlands
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16
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Gezer U, Bronkhorst AJ, Holdenrieder S. The Clinical Utility of Droplet Digital PCR for Profiling Circulating Tumor DNA in Breast Cancer Patients. Diagnostics (Basel) 2022; 12:diagnostics12123042. [PMID: 36553049 PMCID: PMC9776872 DOI: 10.3390/diagnostics12123042] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 12/07/2022] Open
Abstract
Breast cancer is the most common cancer affecting women worldwide. It is a malignant and heterogeneous disease with distinct molecular subtypes, which has prognostic and predictive implications. Circulating tumor DNA (ctDNA), cell-free fragmented tumor-derived DNA in blood plasma, is an invaluable source of specific cancer-associated mutations and holds great promise for the development of minimally invasive diagnostic tests. Furthermore, serial monitoring of ctDNA over the course of systemic and targeted therapies not only allows unparalleled efficacy assessments but also enables the identification of patients who are at risk of progression or recurrence. Droplet digital PCR (ddPCR) is a powerful technique for the detection and monitoring of ctDNA. Due to its relatively high accuracy, sensitivity, reproducibility, and capacity for absolute quantification, it is increasingly used as a tool for managing cancer patients through liquid biopsies. In this review paper, we gauge the clinical utility of ddPCR as a technique for mutational profiling in breast cancer patients and focus on HER2, PIK3CA, ESR1, and TP53, which represent the most frequently mutated genes in breast cancers.
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Affiliation(s)
- Ugur Gezer
- Institute of Oncology, Department of Basic Oncology, Istanbul University, Istanbul 34093, Turkey
| | - Abel J. Bronkhorst
- Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center Munich Technical University Munich, 80636 München, Germany
| | - Stefan Holdenrieder
- Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center Munich Technical University Munich, 80636 München, Germany
- Correspondence:
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17
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The emerging promise of liquid biopsies in solid tumors. NATURE CANCER 2022; 3:1420-1422. [PMID: 36539493 DOI: 10.1038/s43018-022-00498-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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18
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Hassan S, Shehzad A, Khan SA, Miran W, Khan S, Lee YS. Diagnostic and Therapeutic Potential of Circulating-Free DNA and Cell-Free RNA in Cancer Management. Biomedicines 2022; 10:biomedicines10082047. [PMID: 36009594 PMCID: PMC9405989 DOI: 10.3390/biomedicines10082047] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/27/2022] [Accepted: 07/31/2022] [Indexed: 11/20/2022] Open
Abstract
Over time, molecular biology and genomics techniques have been developed to speed up the early diagnosis and clinical management of cancer. These therapies are often most effective when administered to the subset of malignancies harboring the target identified by molecular testing. Important advances in applying molecular testing involve circulating-free DNA (cfDNA)- and cell-free RNA (cfRNA)-based liquid biopsies for the diagnosis, prognosis, prediction, and treatment of cancer. Both cfDNA and cfRNA are sensitive and specific biomarkers for cancer detection, which have been clinically proven through multiple randomized and prospective trials. These help in cancer management based on the noninvasive evaluation of size, quantity, and point mutations, as well as copy number alterations at the tumor site. Moreover, personalized detection of ctDNA helps in adjuvant therapeutics and predicts the chances of recurrence of cancer and resistance to cancer therapy. Despite the controversial diagnostic values of cfDNA and cfRNA, many clinical trials have been completed, and the Food and Drug Administration has approved many multigene assays to detect genetic alterations in the cfDNA of cancer patients. In this review, we underpin the recent advances in the physiological roles of cfDNA and cfRNA, as well as their roles in cancer detection by highlighting recent clinical trials and their roles as prognostic and predictive markers in cancer management.
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Affiliation(s)
- Sadia Hassan
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Adeeb Shehzad
- Department of Biomedical Engineering and Sciences, School of Mechanical and Manufacturing Engineering (SMME), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
- Correspondence: (A.S.); (Y.-S.L.)
| | - Shahid Ali Khan
- Department of Chemistry, School of Natural Sciences (SNS), National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Waheed Miran
- Department of Chemical Engineering, School of Chemical and Materials Engineering National University of Sciences and Technology (NUST), Islamabad 44000, Pakistan
| | - Salman Khan
- Department of pharmacy, Quaid-i-Azam University, Islamabad 44000, Pakistan
| | - Young-Sup Lee
- School of Life Sciences, College of Natural Sciences, Kyungpook National University, Daegu 41566, Korea
- Correspondence: (A.S.); (Y.-S.L.)
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19
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Agopian VG, Yang JD, Zhu Y, You S, Tseng HR. Early detection of primary liver cancer using plasma cell-free DNA fragmentomics: Do all the pieces come together? Hepatology 2022; 76:289-291. [PMID: 35124841 DOI: 10.1002/hep.32396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 02/01/2022] [Indexed: 12/08/2022]
Affiliation(s)
- Vatche G Agopian
- Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California, USA.,Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California, USA
| | - Ju Dong Yang
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Yazhen Zhu
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California, USA.,Department of Molecular and Medical Pharmacology, California NanoSystems Institute, Crump Institute for Molecular Imaging, Los Angeles, California, USA
| | - Sungyong You
- Division of Cancer Biology and Therapeutics, Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Hsian-Rong Tseng
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, Los Angeles, California, USA.,Department of Molecular and Medical Pharmacology, California NanoSystems Institute, Crump Institute for Molecular Imaging, Los Angeles, California, USA
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20
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Pesta M, Shetti D, Kulda V, Knizkova T, Houfkova K, Bagheri MS, Svaton M, Polivka J. Applications of Liquid Biopsies in Non-Small-Cell Lung Cancer. Diagnostics (Basel) 2022; 12:diagnostics12081799. [PMID: 35892510 PMCID: PMC9330570 DOI: 10.3390/diagnostics12081799] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/19/2022] [Accepted: 07/22/2022] [Indexed: 11/17/2022] Open
Abstract
The concept of liquid biopsy as an analysis tool for non-solid tissue carried out for the purpose of providing information about solid tumors was introduced approximately 20 years ago. Additional to the detection of circulating tumor cells (CTCs), the liquid biopsy approach quickly included the analysis of circulating tumor DNA (ctDNA) and other tumor-derived markers such as circulating cell-free RNA or extracellular vesicles. Liquid biopsy is a non-invasive technique for detecting multiple cancer-associated biomarkers that is easy to obtain and can reflect the characteristics of the entire tumor mass. Currently, ctDNA is the key component of the liquid biopsy approach from the point of view of the prognosis assessment, prediction, and monitoring of the treatment of non-small-cell lung cancer (NSCLC) patients. ctDNA in NSCLC patients carries variants or rearrangements that drive carcinogenesis, such as those in EGFR, KRAS, ALK, or ROS1. Due to advances in pharmacology, these variants are the subject of targeted therapy. Therefore, the detection of these variants has gained attention in clinical medicine. Recently, methods based on qPCR (ddPCR, BEAMing) and next-generation sequencing (NGS) are the most effective approaches for ctDNA analysis. This review addresses various aspects of the use of liquid biopsy with an emphasis on ctDNA as a biomarker in NSCLC patients.
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Affiliation(s)
- Martin Pesta
- Department of Biology, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00 Plzen, Czech Republic; (D.S.); (T.K.); (K.H.)
- Correspondence: ; Tel.: +420-377-593-261
| | - Dattatrya Shetti
- Department of Biology, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00 Plzen, Czech Republic; (D.S.); (T.K.); (K.H.)
| | - Vlastimil Kulda
- Department of Medical Chemistry and Biochemistry, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Plzen, Czech Republic;
| | - Tereza Knizkova
- Department of Biology, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00 Plzen, Czech Republic; (D.S.); (T.K.); (K.H.)
| | - Katerina Houfkova
- Department of Biology, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1655/76, 323 00 Plzen, Czech Republic; (D.S.); (T.K.); (K.H.)
| | - Mahyar Sharif Bagheri
- Department of Histology, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Plzen, Czech Republic; (M.S.B.); (J.P.)
| | - Martin Svaton
- Department of Pneumology and Phthisiology, Faculty of Medicine in Pilsen, Charles University, University Hospital in Pilsen, E. Benese 13, 301 00 Plzen, Czech Republic;
| | - Jiri Polivka
- Department of Histology, Faculty of Medicine in Pilsen, Charles University, Karlovarska 48, 301 66 Plzen, Czech Republic; (M.S.B.); (J.P.)
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21
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Dobre EG, Constantin C, Neagu M. Skin Cancer Research Goes Digital: Looking for Biomarkers within the Droplets. J Pers Med 2022; 12:jpm12071136. [PMID: 35887633 PMCID: PMC9323323 DOI: 10.3390/jpm12071136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/12/2022] [Accepted: 07/12/2022] [Indexed: 12/24/2022] Open
Abstract
Skin cancer, which includes the most frequent malignant non-melanoma carcinomas (basal cell carcinoma, BCC, and squamous cell carcinoma, SCC), along with the difficult to treat cutaneous melanoma (CM), pose important worldwide issues for the health care system. Despite the improved anti-cancer armamentarium and the latest scientific achievements, many skin cancer patients fail to respond to therapies, due to the remarkable heterogeneity of cutaneous tumors, calling for even more sophisticated biomarker discovery and patient monitoring approaches. Droplet digital polymerase chain reaction (ddPCR), a robust method for detecting and quantifying low-abundance nucleic acids, has recently emerged as a powerful technology for skin cancer analysis in tissue and liquid biopsies (LBs). The ddPCR method, being capable of analyzing various biological samples, has proved to be efficient in studying variations in gene sequences, including copy number variations (CNVs) and point mutations, DNA methylation, circulatory miRNome, and transcriptome dynamics. Moreover, ddPCR can be designed as a dynamic platform for individualized cancer detection and monitoring therapy efficacy. Here, we present the latest scientific studies applying ddPCR in dermato-oncology, highlighting the potential of this technology for skin cancer biomarker discovery and validation in the context of personalized medicine. The benefits and challenges associated with ddPCR implementation in the clinical setting, mainly when analyzing LBs, are also discussed.
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Affiliation(s)
- Elena-Georgiana Dobre
- Faculty of Biology, University of Bucharest, Splaiul Independentei 91–95, 050095 Bucharest, Romania;
- Correspondence:
| | - Carolina Constantin
- Immunology Department, “Victor Babes” National Institute of Pathology, 050096 Bucharest, Romania;
- Pathology Department, Colentina Clinical Hospital, 020125 Bucharest, Romania
| | - Monica Neagu
- Faculty of Biology, University of Bucharest, Splaiul Independentei 91–95, 050095 Bucharest, Romania;
- Immunology Department, “Victor Babes” National Institute of Pathology, 050096 Bucharest, Romania;
- Pathology Department, Colentina Clinical Hospital, 020125 Bucharest, Romania
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22
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Chan HT, Chin YM, Low SK. Circulating Tumor DNA-Based Genomic Profiling Assays in Adult Solid Tumors for Precision Oncology: Recent Advancements and Future Challenges. Cancers (Basel) 2022; 14:3275. [PMID: 35805046 PMCID: PMC9265547 DOI: 10.3390/cancers14133275] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 06/30/2022] [Accepted: 07/02/2022] [Indexed: 12/04/2022] Open
Abstract
Genomic profiling using tumor biopsies remains the standard approach for the selection of approved molecular targeted therapies. However, this is often limited by its invasiveness, feasibility, and poor sample quality. Liquid biopsies provide a less invasive approach while capturing a contemporaneous and comprehensive tumor genomic profile. Recent advancements in the detection of circulating tumor DNA (ctDNA) from plasma samples at satisfactory sensitivity, specificity, and detection concordance to tumor tissues have facilitated the approval of ctDNA-based genomic profiling to be integrated into regular clinical practice. The recent approval of both single-gene and multigene assays to detect genetic biomarkers from plasma cell-free DNA (cfDNA) as companion diagnostic tools for molecular targeted therapies has transformed the therapeutic decision-making procedure for advanced solid tumors. Despite the increasing use of cfDNA-based molecular profiling, there is an ongoing debate about a 'plasma first' or 'tissue first' approach toward genomic testing for advanced solid malignancies. Both approaches present possible advantages and disadvantages, and these factors should be carefully considered to personalize and select the most appropriate genomic assay. This review focuses on the recent advancements of cfDNA-based genomic profiling assays in advanced solid tumors while highlighting the major challenges that should be tackled to formulate evidence-based guidelines in recommending the 'right assay for the right patient at the right time'.
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Affiliation(s)
- Hiu Ting Chan
- Project for Development of Liquid Biopsy Diagnosis, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan; (Y.M.C.); (S.-K.L.)
| | - Yoon Ming Chin
- Project for Development of Liquid Biopsy Diagnosis, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan; (Y.M.C.); (S.-K.L.)
- Cancer Precision Medicine, Inc., Kawasaki 213-0012, Japan
| | - Siew-Kee Low
- Project for Development of Liquid Biopsy Diagnosis, Cancer Precision Medicine Center, Japanese Foundation for Cancer Research, Tokyo 135-8550, Japan; (Y.M.C.); (S.-K.L.)
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23
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Zhang K, Pinto A, Cheng LY, Song P, Dai P, Wang M, Rodriguez L, Weller C, Zhang DY. Hairpin Structure Facilitates Multiplex High-Fidelity DNA Amplification in Real-Time Polymerase Chain Reaction. Anal Chem 2022; 94:9586-9594. [PMID: 35749270 DOI: 10.1021/acs.analchem.2c00575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Clinically and biologically, it is essential to detect rare DNA-sequence variants for early cancer diagnosis or drug-resistance mutation identification. Some of the common quantitative polymerase chain reaction (qPCR)-based variant detection methods are restricted in the limit of detection (LoD) because the DNA polymerases used for these methods have a high polymerase misincorporation rate; thus, the detection sensitivity is sometimes unsatisfactory. With the proofreading activity, high-fidelity (HiFi) DNA polymerases have a 50- to 250-fold higher fidelity. However, there are currently no proper probe-based designs functioning as the fluorescence indicator allowing multiplexed HiFi qPCR reactions, thus restricting the application of HiFi DNA polymerases like the variant detection. We presented the occlusion system, composed of a 5'-overhanged primer with a fluorophore modification and a probe with a short-stem hairpin and a 3' quencher modification. We demonstrated that the occlusion system allowed multiplexing HiFi qPCR reaction, and it was compatible with the current variant-enrichment method to improve the LoD up to 10-fold. Thus, the occlusion system satisfactorily functioned as an efficient fluorescence indicator in HiFi qPCR reactions and allowed the application of HiFi DNA polymerases in variant detection methods to improve detection sensitivity.
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Affiliation(s)
- Kerou Zhang
- Department of Bioengineering, Rice University, Houston, Texas 77030, United States
| | - Alessandro Pinto
- NuProbe USA, 2575 W Bellfort Street, Houston, Texas 77054, United States
| | - Lauren Yuxuan Cheng
- Department of Bioengineering, Rice University, Houston, Texas 77030, United States
| | - Ping Song
- Department of Bioengineering, Rice University, Houston, Texas 77030, United States
| | - Peng Dai
- Department of Bioengineering, Rice University, Houston, Texas 77030, United States
| | - Michael Wang
- Department of Bioengineering, Rice University, Houston, Texas 77030, United States
| | - Luis Rodriguez
- NuProbe USA, 2575 W Bellfort Street, Houston, Texas 77054, United States
| | - Cailin Weller
- NuProbe USA, 2575 W Bellfort Street, Houston, Texas 77054, United States
| | - David Yu Zhang
- Department of Bioengineering, Rice University, Houston, Texas 77030, United States.,Systems, Synthetic, and Physical Biology, Rice University, Houston, Texas 77030, United States
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24
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The History and Future of Basic and Translational Cell-Free DNA Research at a Glance. Diagnostics (Basel) 2022; 12:diagnostics12051192. [PMID: 35626347 PMCID: PMC9139999 DOI: 10.3390/diagnostics12051192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/29/2022] [Accepted: 05/03/2022] [Indexed: 11/30/2022] Open
Abstract
We discuss the early history of the structure of DNA and its involvement in gene structure as well as its mobility in and between cells and between tissues in the form of circulating cell-free DNA (cfDNA). This is followed by a view of the present status of the studies on cfDNA and clinical applications of circulating cell-free tumor DNA (ctDNA). The future developments and roles of ctDNA are also considered.
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25
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CfDNA Measurement as a Diagnostic Tool for the Detection of Brain Somatic Mutations in Refractory Epilepsy. Int J Mol Sci 2022; 23:ijms23094879. [PMID: 35563270 PMCID: PMC9102996 DOI: 10.3390/ijms23094879] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 02/04/2023] Open
Abstract
Epilepsy is a neurological disorder that affects more than 50 million people. Its etiology is unknown in approximately 60% of cases, although the existence of a genetic factor is estimated in about 75% of these individuals. Hundreds of genes involved in epilepsy are known, and their number is increasing progressively, especially with next-generation sequencing techniques. However, there are still many cases in which the results of these molecular studies do not fully explain the phenotype of the patients. Somatic mutations specific to brain tissue could contribute to the phenotypic spectrum of epilepsy. Undetectable in the genomic DNA of blood cells, these alterations can be identified in cell-free DNA (cfDNA). We aim to review the current literature regarding the detection of somatic variants in cfDNA to diagnose refractory epilepsy, highlighting novel research directions and suggesting further studies.
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26
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Behel V, Choughule A, Noronha V, Patil V, Menon N, Singh A, Kumar S, Kumar R, Shah S, More S, Banavali S, Chandrani P, Prabhash K. Clinical utility of liquid biopsy (cell-free DNA) based EGFR mutation detection post treatment initiation as a disease monitoring tool in patients with advanced EGFR-mutant NSCLC. Clin Lung Cancer 2022; 23:410-418. [DOI: 10.1016/j.cllc.2022.04.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/07/2022] [Accepted: 04/10/2022] [Indexed: 12/15/2022]
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27
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Wu M, Shen H, Wang Z, Kanu N, Chen K. Research Progress on Postoperative Minimal/Molecular Residual Disease Detection in Lung Cancer. Chronic Dis Transl Med 2022; 8:83-90. [PMID: 35774426 PMCID: PMC9215711 DOI: 10.1002/cdt3.10] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 12/22/2021] [Indexed: 12/05/2022] Open
Abstract
Lung cancer is the leading cause of cancer‐related deaths worldwide. Approximately 10%–50% of patients experience relapse after radical surgery, which may be attributed to the persistence of minimal/molecular residual disease (MRD). Circulating tumor DNA (ctDNA), a common liquid biopsy approach, has been demonstrated to have significant clinical merit. In this study, we review the evidence supporting the use of ctDNA for MRD detection and discuss the potential clinical applications of postoperative MRD detection, including monitoring recurrence, guiding adjuvant treatment, and driving clinical trials in lung cancer. We will also discuss the problems that prevent the routine application of ctDNA MRD detection. Multi‐analyte methods and identification of specific genetic and molecular alterations, especially methylation, are effective detection strategies and show considerable prospects for future development. Interventional prospective studies based on ctDNA detection are needed to determine whether the application of postoperative MRD detection can improve the clinical outcomes of lung cancer patients, and the accuracy, sensitivity, specificity, and robustness of different detection methods still require optimization and refinement.
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Affiliation(s)
- Manqi Wu
- Department of Thoracic Surgery Peking University People's Hospital, Peking University Beijing 100044 China
| | - Haifeng Shen
- Department of Thoracic Surgery Peking University People's Hospital, Peking University Beijing 100044 China
| | - Ziyang Wang
- Department of Thoracic Surgery Peking University People's Hospital, Peking University Beijing 100044 China
| | - Nnennaya Kanu
- Cancer Research UK Lung Cancer Centre of Excellence University College London Cancer Institute, University College London 72 Huntley St London WC1E 6DD UK
| | - Kezhong Chen
- Department of Thoracic Surgery Peking University People's Hospital, Peking University Beijing 100044 China
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28
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Hasenleithner SO, Speicher MR. A clinician’s handbook for using ctDNA throughout the patient journey. Mol Cancer 2022; 21:81. [PMID: 35307037 PMCID: PMC8935823 DOI: 10.1186/s12943-022-01551-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/24/2022] [Indexed: 12/15/2022] Open
Abstract
Abstract
Background
The promise of precision cancer medicine presently centers around the genomic sequence of a patient’s tumor being translated into timely, actionable information to inform clinical care. The analysis of cell-free DNA from liquid biopsy, which contains circulating tumor DNA (ctDNA) in patients with cancer, has proven to be amenable to various settings in oncology. However, open questions surrounding the clinical validity and utility of plasma-based analyses have hindered widespread clinical adoption.
Main body
Owing to the rapid evolution of the field, studies supporting the use of ctDNA as a biomarker throughout a patient’s journey with cancer have accumulated in the last few years, warranting a review of the latest status for clinicians who may employ ctDNA in their precision oncology programs. In this work, we take a step back from the intricate coverage of detection approaches described extensively elsewhere and cover basic concepts around the practical implementation of next generation sequencing (NGS)-guided liquid biopsy. We compare relevant targeted and untargeted approaches to plasma DNA analysis, describe the latest evidence for clinical validity and utility, and highlight the value of genome-wide ctDNA analysis, particularly as it relates to early detection strategies and discovery applications harnessing the non-coding genome.
Conclusions
The maturation of liquid biopsy for clinical application will require interdisciplinary efforts to address current challenges. However, patients and clinicians alike may greatly benefit in the future from its incorporation into routine oncology care.
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29
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Circulating Cell-Free DNA Reflects the Clonal Evolution of Breast Cancer Tumors. Cancers (Basel) 2022; 14:cancers14051332. [PMID: 35267640 PMCID: PMC8909912 DOI: 10.3390/cancers14051332] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 02/28/2022] [Accepted: 03/01/2022] [Indexed: 02/08/2023] Open
Abstract
Simple Summary Liquid biopsy of cell-free DNA (cfDNA) is proposed as potential method for the early detection of breast cancer (BC) metastases and following the clonal evolution of BC. Though the use of liquid biopsy is widely discussed, only few studies have demonstrated such usage so far. The aim of this study was to evaluate how accurately cfDNA resembles the genetic profile of tumor DNA and how liquid biopsy reflects the clonal evolution of 18 Eastern-Finnish BC cases with locoregional or distant metastases. Although notable discordance between the sequenced cfDNA and tumor DNA was observed, our results show that liquid biopsy reflects the heterogeneity and clonal evolution of BC and may help to identify potential driver variants and therapeutic targets that are not detected with the sequencing of tumor DNA. This information may be used to detect metastatic BC earlier and to support decision-making in clinical practice. Abstract Liquid biopsy of cell-free DNA (cfDNA) is proposed as a potential method for the early detection of breast cancer (BC) metastases and following the clonal evolution of BC. Though the use of liquid biopsy is a widely discussed topic in the field, only a few studies have demonstrated such usage so far. We sequenced the DNA of matched primary tumor and metastatic sites together with the matched cfDNA samples from 18 Eastern Finnish BC patients and investigated how well cfDNA reflected the clonal evolution of BC interpreted from tumor DNA. On average, liquid biopsy detected 56.2 ± 7.2% of the somatic variants that were present either in the matched primary tumor or metastatic sites. Despite the high discordance observed between matched samples, liquid biopsy was found to reflect the clonal evolution of BC and identify novel driver variants and therapeutic targets absent from the tumor DNA. Tumor-specific somatic variants were detected in cfDNA at the time of diagnosis and 8.4 ± 2.4 months prior to detection of locoregional recurrence or distant metastases. Our results demonstrate that the sequencing of cfDNA may be used for the early detection of locoregional and distant BC metastases. Observed discordance between tumor DNA sequencing and liquid biopsy supports the parallel sequencing of cfDNA and tumor DNA to yield the most comprehensive overview for the genetic landscape of BC.
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30
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Peng Y, Mei W, Ma K, Zeng C. Circulating Tumor DNA and Minimal Residual Disease (MRD) in Solid Tumors: Current Horizons and Future Perspectives. Front Oncol 2021; 11:763790. [PMID: 34868984 PMCID: PMC8637327 DOI: 10.3389/fonc.2021.763790] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Accepted: 11/03/2021] [Indexed: 12/12/2022] Open
Abstract
Circulating tumor DNA (ctDNA) is cell-free DNA (cfDNA) fragment in the bloodstream that originates from malignant tumors or circulating tumor cells. Recently, ctDNA has emerged as a promising non-invasive biomarker in clinical oncology. Analysis of ctDNA opens up new avenues for individualized cancer diagnosis and therapy in various types of tumors. Evidence suggests that minimum residual disease (MRD) is closely associated with disease recurrence, thus identifying specific genetic and molecular alterations as novel MRD detection targets using ctDNA has been a research focus. MRD is considered a promising prognostic marker to identify individuals at increased risk of recurrence and who may benefit from treatment. This review summarizes the current knowledge of ctDNA and MRD in solid tumors, focusing on the potential clinical applications and challenges. We describe the current state of ctDNA detection methods and the milestones of ctDNA development and discuss how ctDNA analysis may be an alternative for tissue biopsy. Additionally, we evaluate the clinical utility of ctDNA analysis in solid tumors, such as recurrence risk assessment, monitoring response, and resistance mechanism analysis. MRD detection aids in assessing treatment response, patient prognosis, and risk of recurrence. Moreover, this review highlights current advancements in utilizing ctDNA to monitor the MRD of solid tumors such as lung cancer, breast cancer, and colon cancer. Overall, the clinical application of ctDNA-based MRD detection can assist clinical decision-making and improve patient outcomes in malignant tumors.
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Affiliation(s)
- Yan Peng
- Department of Obstetrics, Longhua District Central Hospital, Shenzhen, China
| | - Wuxuan Mei
- Clinical Medical College, Hubei University of Science and Technology, Xianning, China
| | - Kaidong Ma
- Department of Obstetrics, Longhua District Central Hospital, Shenzhen, China
| | - Changchun Zeng
- Department of Medical Laboratory, Shenzhen Longhua District Central Hospital, Guangdong Medical University, Shenzhen, China
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