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Lim W, Lee S, Koh M, Jo A, Park J. Recent advances in chemical biology tools for protein and RNA profiling of extracellular vesicles. RSC Chem Biol 2024; 5:483-499. [PMID: 38846074 PMCID: PMC11151817 DOI: 10.1039/d3cb00200d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 04/25/2024] [Indexed: 06/09/2024] Open
Abstract
Extracellular vesicles (EVs) are nano-sized vesicles secreted by cells that contain various cellular components such as proteins, nucleic acids, and lipids from the parent cell. EVs are abundant in body fluids and can serve as circulating biomarkers for a variety of diseases or as a regulator of various biological processes. Considering these characteristics of EVs, analysis of the EV cargo has been spotlighted for disease diagnosis or to understand biological processes in biomedical research. Over the past decade, technologies for rapid and sensitive analysis of EVs in biofluids have evolved, but detection and isolation of targeted EVs in complex body fluids is still challenging due to the unique physical and biological properties of EVs. Recent advances in chemical biology provide new opportunities for efficient profiling of the molecular contents of EVs. A myriad of chemical biology tools have been harnessed to enhance the analytical performance of conventional assays for better understanding of EV biology. In this review, we will discuss the improvements that have been achieved using chemical biology tools.
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Affiliation(s)
- Woojeong Lim
- Department of Chemistry, Kangwon National University Chuncheon 24341 Korea
| | - Soyeon Lee
- Department of Chemistry, Kangwon National University Chuncheon 24341 Korea
| | - Minseob Koh
- Department of Chemistry, Pusan National University Busan 46241 Republic of Korea
| | - Ala Jo
- Center for Nanomedicine, Institute for Basic Science Seoul 03722 Republic of Korea
| | - Jongmin Park
- Department of Chemistry, Kangwon National University Chuncheon 24341 Korea
- Institute for Molecular Science and Fusion Technology, Kangwon National University Chuncheon 24341 Republic of Korea
- Multidimensional Genomics Research Center, Kangwon National University Chuncheon 24341 Republic of Korea
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2
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Chen K, He Y, Wang W, Yuan X, Carbone DP, Yang F. Development of new techniques and clinical applications of liquid biopsy in lung cancer management. Sci Bull (Beijing) 2024; 69:1556-1568. [PMID: 38641511 DOI: 10.1016/j.scib.2024.03.062] [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: 09/25/2023] [Revised: 12/12/2023] [Accepted: 01/17/2024] [Indexed: 04/21/2024]
Abstract
Lung cancer is an exceedingly malignant tumor reported as having the highest morbidity and mortality of any cancer worldwide, thus posing a great threat to global health. Despite the growing demand for precision medicine, current methods for early clinical detection, treatment and prognosis monitoring in lung cancer are hampered by certain bottlenecks. Studies have found that during the formation and development of a tumor, molecular substances carrying tumor-related genetic information can be released into body fluids. Liquid biopsy (LB), a method for detecting these tumor-related markers in body fluids, maybe a way to make progress in these bottlenecks. In recent years, LB technology has undergone rapid advancements. Therefore, this review will provide information on technical updates to LB and its potential clinical applications, evaluate its effectiveness for specific applications, discuss the existing limitations of LB, and present a look forward to possible future clinical applications. Specifically, this paper will introduce technical updates from the prospectives of engineering breakthroughs in the detection of membrane-based LB biomarkers and other improvements in sequencing technology. Additionally, it will summarize the latest applications of liquid biopsy for the early detection, diagnosis, treatment, and prognosis of lung cancer. We will present the interconnectedness of clinical and laboratory issues and the interplay of technology and application in LB today.
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Affiliation(s)
- Kezhong Chen
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing 100044, China; Peking University People's Hospital Thoracic Oncology Institute & Research Unit of Intelligence Diagnosis and Treatment in Early Non-small Cell Lung Cancer, Beijing 100044, China
| | - Yue He
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing 100044, China; Peking University People's Hospital Thoracic Oncology Institute & Research Unit of Intelligence Diagnosis and Treatment in Early Non-small Cell Lung Cancer, Beijing 100044, China
| | - Wenxiang Wang
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing 100044, China; Peking University People's Hospital Thoracic Oncology Institute & Research Unit of Intelligence Diagnosis and Treatment in Early Non-small Cell Lung Cancer, Beijing 100044, China
| | - Xiaoqiu Yuan
- Peking University Health Science Center, Beijing 100191, China
| | - David P Carbone
- Thoracic Oncology Center, Ohio State University, Columbus 43026, USA.
| | - Fan Yang
- Department of Thoracic Surgery, Peking University People's Hospital, Beijing 100044, China; Peking University People's Hospital Thoracic Oncology Institute & Research Unit of Intelligence Diagnosis and Treatment in Early Non-small Cell Lung Cancer, Beijing 100044, China.
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3
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Niu C, Zhang J, Fang Y, Wang X, Tang Y, Dong L. Development of a nine-variant reference material panel to standardize cell-free DNA detection. Anal Bioanal Chem 2024:10.1007/s00216-024-05336-3. [PMID: 38782781 DOI: 10.1007/s00216-024-05336-3] [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: 03/26/2024] [Revised: 05/10/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024]
Abstract
Detection of specific gene mutations in cell-free DNA (cfDNA) serves as a valuable cancer biomarker and is increasingly being explored as an appealing alternative to tissue-based methods. However, the lack of available reference materials poses challenges in accurately evaluating the performance of different assays. In this study, we present the development of a comprehensive reference material panel for cfDNA detection, encompassing nine hotspot mutations in KRAS/BRAF/EGFR/PIK3CA at three variant allele frequencies (VAFs), ranging from 0.33 to 23.9%. To mimic cfDNA, these reference materials were generated by enzymatically digesting cell-line DNA into approximately 154-bp to 173-bp fragments using a laboratory-developed reaction system. The VAFs for each variation were precisely determined through validated digital PCR assays with high accuracy. Furthermore, the reliability and applicability of this panel were confirmed through two independent NGS assays, yielding concordant results. Collectively, our findings suggest that this novel reference material panel holds great potential for validation, evaluation, and quality control processes associated with liquid biopsy assays.
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Affiliation(s)
- Chunyan Niu
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100013, China
| | - Jiejie Zhang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100013, China
- College of Food Sciences and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Yan Fang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100013, China
- College of Food Sciences and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Xia Wang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100013, China
| | - Yanru Tang
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100013, China
- College of Food Sciences and Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Lianhua Dong
- Center for Advanced Measurement Science, National Institute of Metrology, Beijing, 100013, China.
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4
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Shetti D, Mallela VR, Ye W, Sharif M, Ambrozkiewicz F, Trailin A, Liška V, Hemminki K. Emerging role of circulating cell-free RNA as a non-invasive biomarker for hepatocellular carcinoma. Crit Rev Oncol Hematol 2024; 200:104391. [PMID: 38795877 DOI: 10.1016/j.critrevonc.2024.104391] [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: 03/14/2024] [Revised: 04/30/2024] [Accepted: 05/19/2024] [Indexed: 05/28/2024] Open
Abstract
Hepatocellular carcinoma (HCC) is a severe neoplastic disease associated with high morbidity and mortality rates. HCC is often detected at advanced stages leading to ineffective curative treatments. Recently, liquid biopsy has emerged as a non-invasive method to identify highly specific HCC biomarkers in bodily fluids such as blood, serum, urine, and saliva. Circulating cell-free nucleic acids (cfNAs), particularly cell-free DNA (cfDNA) and cell-free RNA (cfRNA), have become promising candidates for biomarkers in liquid biopsy applications. While cfDNA presented significant challenges, researchers have turned their attention to cfRNA, which can be efficiently identified through various methods and is considered a potential biomarker for cancer diagnosis and prognosis. This review primarily focuses on studies related to detecting various cfRNA in body fluids as biomarkers. The aim is to provide a summary of available information to assist researchers in their investigations and the development of new diagnostic and prognostic tools.
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Affiliation(s)
- Dattatrya Shetti
- Laboratory of Translational Cancer Genomics, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic.
| | - Venkata Ramana Mallela
- Laboratory of Translational Cancer Genomics, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic
| | - Wenjing Ye
- Laboratory of Translational Cancer Genomics, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic
| | - Mahyar Sharif
- Department of Histology and Embryology, Faculty of Medicine in Pilsen, Charles University,Alej Svobody 1665/76, Pilsen 323 00, Czech Republic
| | - Filip Ambrozkiewicz
- Laboratory of Translational Cancer Genomics, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic
| | - Andriy Trailin
- Laboratory of Translational Cancer Genomics, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic
| | - Václav Liška
- Laboratory of Cancer Treatment and Tissue Regeneration, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic; Department of Surgery, University Hospital in Pilsen and Faculty of Medicine in Pilsen, Charles University, Alej Svobody 80, Pilsen 323 00, Czech Republic
| | - Kari Hemminki
- Laboratory of Translational Cancer Genomics, Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Alej Svobody 1665/76, Pilsen 323 00, Czech Republic; Department of Cancer Epidemiology, German Cancer Research Center, Im Neuenheimer Feld 280, Heidelberg 69120, Germany
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5
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Zhou Y, Tao L, Qiu J, Xu J, Yang X, Zhang Y, Tian X, Guan X, Cen X, Zhao Y. Tumor biomarkers for diagnosis, prognosis and targeted therapy. Signal Transduct Target Ther 2024; 9:132. [PMID: 38763973 PMCID: PMC11102923 DOI: 10.1038/s41392-024-01823-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 03/07/2024] [Accepted: 04/02/2024] [Indexed: 05/21/2024] Open
Abstract
Tumor biomarkers, the substances which are produced by tumors or the body's responses to tumors during tumorigenesis and progression, have been demonstrated to possess critical and encouraging value in screening and early diagnosis, prognosis prediction, recurrence detection, and therapeutic efficacy monitoring of cancers. Over the past decades, continuous progress has been made in exploring and discovering novel, sensitive, specific, and accurate tumor biomarkers, which has significantly promoted personalized medicine and improved the outcomes of cancer patients, especially advances in molecular biology technologies developed for the detection of tumor biomarkers. Herein, we summarize the discovery and development of tumor biomarkers, including the history of tumor biomarkers, the conventional and innovative technologies used for biomarker discovery and detection, the classification of tumor biomarkers based on tissue origins, and the application of tumor biomarkers in clinical cancer management. In particular, we highlight the recent advancements in biomarker-based anticancer-targeted therapies which are emerging as breakthroughs and promising cancer therapeutic strategies. We also discuss limitations and challenges that need to be addressed and provide insights and perspectives to turn challenges into opportunities in this field. Collectively, the discovery and application of multiple tumor biomarkers emphasized in this review may provide guidance on improved precision medicine, broaden horizons in future research directions, and expedite the clinical classification of cancer patients according to their molecular biomarkers rather than organs of origin.
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Affiliation(s)
- Yue Zhou
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Lei Tao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jiahao Qiu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Jing Xu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xinyu Yang
- West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yu Zhang
- West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
- School of Medicine, Tibet University, Lhasa, 850000, China
| | - Xinyu Tian
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xinqi Guan
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaobo Cen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yinglan Zhao
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
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Ren S, Yu C, Huang Q. Diagnostic value of combined detection of plasma cfDNA concentration and integrity in NSCLC. Lung Cancer Manag 2024; 13:LMT64. [PMID: 38812772 PMCID: PMC11131340 DOI: 10.2217/lmt-2023-0009] [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: 08/28/2023] [Accepted: 12/12/2023] [Indexed: 05/31/2024] Open
Abstract
Aim: To evaluate the value of combined detection of plasma cfDNA concentration and integrity in the early diagnosis of NSCLC. Methods: Real-time fluorescence quantitative PCR was used to determine the concentration and integrity of plasma cfDNA in 71 NSCLC patients and 53 healthy people. Results: Combined detection of plasma cfDNA concentration and integrity had higher diagnostic power in differentiating NSCLC patients with stage I/II from healthy people than detection of plasma cfDNA concentration alone or integrity alone. The AUC, sensitivity and specificity of the combined detection of plasma cfDNA concentration and integrity were 0.781, 0.62 and 0.85. Conclusion: Combined detection of plasma cfDNA concentration and integrity could improve the diagnostic value in NSCLC detection.
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Affiliation(s)
- Sai Ren
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, PR China
- Department of Laboratory Medicine, People's Hospital of Chongqing Liang Jiang New Area, Chongqing, 401121, PR China
| | - Chunli Yu
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, PR China
- Department of Laboratory Medicine, Chengdu Xinhua Hospital, Chengdu, 610055, PR China
| | - Qing Huang
- Department of Laboratory Medicine, Daping Hospital, Army Medical University, Chongqing, 400042, PR China
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Szakállas N, Barták BK, Valcz G, Nagy ZB, Takács I, Molnár B. Can long-read sequencing tackle the barriers, which the next-generation could not? A review. Pathol Oncol Res 2024; 30:1611676. [PMID: 38818014 PMCID: PMC11137202 DOI: 10.3389/pore.2024.1611676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/30/2024] [Indexed: 06/01/2024]
Abstract
The large-scale heterogeneity of genetic diseases necessitated the deeper examination of nucleotide sequence alterations enhancing the discovery of new targeted drug attack points. The appearance of new sequencing techniques was essential to get more interpretable genomic data. In contrast to the previous short-reads, longer lengths can provide a better insight into the potential health threatening genetic abnormalities. Long-reads offer more accurate variant identification and genome assembly methods, indicating advances in nucleotide deflect-related studies. In this review, we introduce the historical background of sequencing technologies and show their benefits and limits, as well. Furthermore, we highlight the differences between short- and long-read approaches, including their unique advances and difficulties in methodologies and evaluation. Additionally, we provide a detailed description of the corresponding bioinformatics and the current applications.
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Affiliation(s)
- Nikolett Szakállas
- Department of Biological Physics, Faculty of Science, Eötvös Loránd University, Budapest, Hungary
| | - Barbara K. Barták
- Department of Internal Medicine and Oncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Gábor Valcz
- Department of Internal Medicine and Oncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
- HUN-REN-SU Translational Extracellular Vesicle Research Group, Budapest, Hungary
| | - Zsófia B. Nagy
- Department of Internal Medicine and Oncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - István Takács
- Department of Internal Medicine and Oncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
| | - Béla Molnár
- Department of Internal Medicine and Oncology, Faculty of Medicine, Semmelweis University, Budapest, Hungary
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Shi X, Guo S, Duan Q, Zhang W, Gao S, Jing W, Jiang G, Kong X, Li P, Li Y, Teng C, Xu X, Chen S, Nian B, Li Z, Zhong C, Yang X, Zhu G, Du Y, Zhang D, Jin G. Detection and characterization of pancreatic and biliary tract cancers using cell-free DNA fragmentomics. J Exp Clin Cancer Res 2024; 43:145. [PMID: 38750539 PMCID: PMC11094938 DOI: 10.1186/s13046-024-03067-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 05/08/2024] [Indexed: 05/19/2024] Open
Abstract
BACKGROUND Plasma cell-free DNA (cfDNA) fragmentomics has demonstrated significant differentiation power between cancer patients and healthy individuals, but little is known in pancreatic and biliary tract cancers. The aim of this study is to characterize the cfDNA fragmentomics in biliopancreatic cancers and develop an accurate method for cancer detection. METHODS One hundred forty-seven patients with biliopancreatic cancers and 71 non-cancer volunteers were enrolled, including 55 patients with cholangiocarcinoma, 30 with gallbladder cancer, and 62 with pancreatic cancer. Low-coverage whole-genome sequencing (median coverage: 2.9 ×) was performed on plasma cfDNA. Three cfDNA fragmentomic features, including fragment size, end motif and nucleosome footprint, were subjected to construct a stacked machine learning model for cancer detection. Integration of carbohydrate antigen 19-9 (CA19-9) was explored to improve model performance. RESULTS The stacked model presented robust performance for cancer detection (area under curve (AUC) of 0.978 in the training cohort, and AUC of 0.941 in the validation cohort), and remained consistent even when using extremely low-coverage sequencing depth of 0.5 × (AUC: 0.905). Besides, our method could also help differentiate biliopancreatic cancer subtypes. By integrating the stacked model and CA19-9 to generate the final detection model, a high accuracy in distinguishing biliopancreatic cancers from non-cancer samples with an AUC of 0.995 was achieved. CONCLUSIONS Our model demonstrated ultrasensitivity of plasma cfDNA fragementomics in detecting biliopancreatic cancers, fulfilling the unmet accuracy of widely-used serum biomarker CA19-9, and provided an affordable way for accurate noninvasive biliopancreatic cancer screening in clinical practice.
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Affiliation(s)
- Xiaohan Shi
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Shiwei Guo
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Qiaonan Duan
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Wei Zhang
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Suizhi Gao
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Wei Jing
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Guojuan Jiang
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Xiangyu Kong
- Department of Gastroenterology, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Penghao Li
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Yikai Li
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Chuanqi Teng
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Xiaoya Xu
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Sheng Chen
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Baoning Nian
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Zhikuan Li
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China
| | - Chaoliang Zhong
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Xiaolu Yang
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China
| | - Guangyu Zhu
- Department of Interventional Radiology and Vascular Surgery, Zhongda Hospital, Southeast University, 87 Dingjiaqiao Road, Nanjing, Jiangsu Province, 210009, China.
| | - Yiqi Du
- Department of Gastroenterology, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
| | - Dadong Zhang
- Department of Clinical and Translational Medicine, 3D Medicines Inc, 158 Xin Junhuan Road, Pujiang Hi-Tech Park, Shanghai, 201114, China.
| | - Gang Jin
- Department of Hepatobiliary Pancreatic Surgery, Changhai Hospital, Navy Military Medical University, 168 Changhai Road, Shanghai, 200433, China.
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Yu H, Han X, Wang W, Zhang Y, Xiang L, Bai D, Zhang L, Weng Z, Lv K, Song L, Luo W, Yin N, Zhang Y, Feng T, Wang L, Xie G. Modified Unit-Mediated Strand Displacement Reactions for Direct Detection of Single Nucleotide Variants in Active Double-Stranded DNA. ACS NANO 2024; 18:12401-12411. [PMID: 38701333 DOI: 10.1021/acsnano.4c01511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2024]
Abstract
Accurate identification of single nucleotide variants (SNVs) in key driver genes holds a significant value for disease diagnosis and treatment. Fluorescent probes exhibit tremendous potential in specific, high-resolution, and rapid detection of SNVs. However, additional steps are required in most post-PCR assays to convert double-stranded DNA (dsDNA) products into single-stranded DNA (ssDNA), enabling them to possess hybridization activity to trigger subsequent reactions. This process not only prolongs the complexity of the experiment but also introduces the risk of losing target information. In this study, we proposed two strategies for enriching active double-stranded DNA, involving PCR based on obstructive groups and cleavable units. Building upon this, we explored the impact of modified units on the strand displacement reaction (SDR) and assessed their discriminatory efficacy for mutations. The results showed that detection of low variant allele frequencies (VAF) as low as 0.1% can be achieved. The proposed strategy allowed orthogonal identification of 45 clinical colorectal cancer tissue samples with 100% specificity, and the results were generally consistent with sequencing results. Compared to existing methods for enriching active targets, our approach offers a more diverse set of enrichment strategies, characterized by the advantage of being simple and fast and preserving original information to the maximum extent. The objective of this study is to offer an effective solution for the swift and facile acquisition of active double-stranded DNA. We anticipate that our work will facilitate the practical applications of SDR based on dsDNA.
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Affiliation(s)
- Hongyan Yu
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Xiaole Han
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Weitao Wang
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yangli Zhang
- The Center for Clinical Molecular Medical Detection, Biobank Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Linguo Xiang
- The Center for Clinical Molecular Medical Detection, Biobank Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Dan Bai
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Li Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Zhi Weng
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Ke Lv
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Lin Song
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Wang Luo
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Na Yin
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Yaoyi Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Tong Feng
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Li Wang
- The Center for Clinical Molecular Medical Detection, Biobank Center, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Guoming Xie
- Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
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10
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Filatova AA, Alekseeva LA, Sen’kova AV, Savin IA, Sounbuli K, Zenkova MA, Mironova NL. Tumor- and Fibroblast-Derived Cell-Free DNAs Differently Affect the Progression of B16 Melanoma In Vitro and In Vivo. Int J Mol Sci 2024; 25:5304. [PMID: 38791341 PMCID: PMC11120878 DOI: 10.3390/ijms25105304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/06/2024] [Accepted: 05/11/2024] [Indexed: 05/26/2024] Open
Abstract
It is widely postulated that the majority of pathologically elevated extracellular or cell-free DNA (cfDNA) in cancer originates from tumor cells; however, evidence has emerged regarding the significant contributions of other cells from the tumor microenvironment. Here, the effect of cfDNA originating from murine B16 melanoma cells and L929 fibroblasts on B16 cells was investigated. It was found that cfDNAL929 increased the viability and migration properties of B16 cells in vitro and their invasiveness in vivo. In contrast, cfDNAB16 exhibited a negative effect on B16 cells, reducing their viability and migration in vitro, which in vivo led to decreased tumor size and metastasis number. It was shown that cell treatment with both cfDNAs resulted in an increase in the expression of genes encoding DNases and the oncogenes Braf, Kras, and Myc. cfDNAL929-treated cells were shown to experience oxidative stress. Gene expression changes in the case of cfDNAB16 treatment are well correlated with the observed decrease in proliferation and migration of B16 cells. The obtained data may indicate the possible involvement of fibroblast DNA in the tumor microenvironment in tumor progression and, potentially, in the formation of new tumor foci due to the transformation of normal cells.
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Affiliation(s)
- Alina A. Filatova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
- Faculty of Natural Sciences, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Ludmila A. Alekseeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
| | - Aleksandra V. Sen’kova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
| | - Innokenty A. Savin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
| | - Khetam Sounbuli
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
- Faculty of Natural Sciences, Novosibirsk State University, Novosibirsk 630090, Russia
| | - Marina A. Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
| | - Nadezhda L. Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences (SB RAS), Lavrentiev Ave., 8, Novosibirsk 630090, Russia; (A.A.F.); (L.A.A.); (A.V.S.); (I.A.S.); (K.S.); (M.A.Z.)
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11
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de Queiroz LF, Silva MSDME, de Souza HSP, Rosas SLB, Carvalho MDGDC. hTERT gene methylation in circulating DNA, tumor, and surrounding tissue in breast cancer: a prospective study. SAO PAULO MED J 2024; 142:e2023140. [PMID: 38747873 PMCID: PMC11087006 DOI: 10.1590/1516-3180.2023.0140.r1.04032024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 11/08/2023] [Accepted: 03/04/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND The human telomerase reverse transcriptase (hTERT) enzyme, encoded by the hTERT gene, synthesizes protective telomeric sequences on chromosomes and plays a fundamental role in cancer formation. Methylation of the hTERT gene has an upregulatory effect, increasing hTERT enzyme synthesis and allowing continuous tumor cell division. OBJECTIVE In a group of patients with breast cancer, we aimed to analyze the methylation status of hTERT in the tumor, surrounding tissue, and circulating free deoxyribonucleic acid (cfDNA) of blood collected on the day of mastectomy and then approximately one year later. DESIGN AND SETTING A prospective study was conducted at a university hospital in Rio de Janeiro, Brazil. METHODS Samples were collected from 15 women with breast cancer on the day of mastectomy and approximately one year postoperatively. cfDNA was analyzed by sodium bisulfite conversion, followed by polymerase chain reaction, electrophoresis, and silver nitrate staining. RESULTS Methylation of hTERT was detected in the tumors and surrounding tissues of all 15 patients. Five patients displayed hTERT methylation in the cfDNA from the blood of the first collection. Of the ten patients who returned for the second collection, three showed methylation. Two patients with methylation in the first collection did not display methylation in the second collection. One patient with no methylation in the first collection displayed methylation in the second collection, and one patient had a diminished level of methylation in the second collection. CONCLUSION Only one-third of patients displayed methylation in their cfDNA, which may be related to the success of chemotherapy.
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Affiliation(s)
- Luiz Fernando de Queiroz
- MD, PhD. Molecular Biologist, Department of Pathology, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
| | - Marcelo Soares da Mota e Silva
- MD, PhD. Molecular Biologist, Department of Pathology, Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
| | - Heitor Siffert Pereira de Souza
- MD, PhD. Physician and Full Professor, Department of Internal Medicine, School of Medicine, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
| | - Siane Lopes Bittencourt Rosas
- MD, PhD. Molecular Biologist, Department of Internal Medicine, School of Medicine, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
| | - Maria da Glória da Costa Carvalho
- MD, PhD. Physician and Associate Professor, Department of Pathology, Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro (RJ), Brazil
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12
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Peng H, Pan M, Zhou Z, Chen C, Xing X, Cheng S, Zhang S, Zheng H, Qian K. The impact of preanalytical variables on the analysis of cell-free DNA from blood and urine samples. Front Cell Dev Biol 2024; 12:1385041. [PMID: 38784382 PMCID: PMC11111958 DOI: 10.3389/fcell.2024.1385041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 04/22/2024] [Indexed: 05/25/2024] Open
Abstract
Cell-free DNA (cfDNA), a burgeoning class of molecular biomarkers, has been extensively studied across a variety of biomedical fields. As a key component of liquid biopsy, cfDNA testing is gaining prominence in disease detection and management due to the convenience of sample collection and the abundant wealth of genetic information it provides. However, the broader clinical application of cfDNA is currently impeded by a lack of standardization in the preanalytical procedures for cfDNA analysis. A number of fundamental challenges, including the selection of appropriate preanalytical procedures, prevention of short cfDNA fragment loss, and the validation of various cfDNA measurement methods, remain unaddressed. These existing hurdles lead to difficulties in comparing results and ensuring repeatability, thereby undermining the reliability of cfDNA analysis in clinical settings. This review discusses the crucial preanalytical factors that influence cfDNA analysis outcomes, including sample collection, transportation, temporary storage, processing, extraction, quality control, and long-term storage. The review provides clarification on achievable consensus and offers an analysis of the current issues with the goal of standardizing preanalytical procedures for cfDNA analysis.
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Affiliation(s)
- Hongwei Peng
- Department of Biological Repositories, Human Genetic Resources Preservation Center of Hubei Province, Hubei Key Laboratory of Urological Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Ming Pan
- Taihe Skills Training Center, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Zongning Zhou
- Department of Biological Repositories, Human Genetic Resources Preservation Center of Hubei Province, Hubei Key Laboratory of Urological Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Congbo Chen
- Department of Urology, Taihe Hospital, Hubei University of Medicine, Shiyan, Hubei, China
| | - Xing Xing
- Department of Urology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
| | - Shaoping Cheng
- Department of Urology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
| | - Shanshan Zhang
- Department of Biological Repositories, Human Genetic Resources Preservation Center of Hubei Province, Hubei Key Laboratory of Urological Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hang Zheng
- Department of Urology, Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Kaiyu Qian
- Department of Biological Repositories, Human Genetic Resources Preservation Center of Hubei Province, Hubei Key Laboratory of Urological Diseases, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Urology, Laboratory of Precision Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
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13
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Si Y, Wang X, Su X, Weng Z, Hu Q, Li Q, Fan C, Zhang DY, Wang Y, Luo S, Song P. Extended Enrichment for Ultrasensitive Detection of Low-Frequency Mutations by Long Blocker Displacement Amplification. Angew Chem Int Ed Engl 2024; 63:e202400551. [PMID: 38416545 DOI: 10.1002/anie.202400551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/26/2024] [Accepted: 02/26/2024] [Indexed: 02/29/2024]
Abstract
Detecting low-frequency DNA mutations hotspots cluster is critical for cancer diagnosis but remains challenging. Quantitative PCR (qPCR) is constrained by sensitivity, and allele-specific PCR is restricted by throughput. Here we develop a long blocker displacement amplification (LBDA) coupled with qPCR for ultrasensitive and multiplexed variants detection. By designing long blocker oligos to perfectly match wildtype sequences while mispairing with mutants, long blockers enable 14-44 nt enrichment regions which is 2-fold longer than normal BDA in the experiments. For wild template with a specific nucleotide, LBDA can detect different mutation types down to 0.5 % variant allele frequency (VAF) in one reaction, with median enrichment fold of 1,000 on 21 mutant DNA templates compared to the wild type. We applied LBDA-qPCR to detect KRAS and NRAS mutation hotspots, utilizing a single plex assay capable of covering 81 mutations and tested in synthetic templates and colorectal cancer tissue samples. Moreover, the mutation types were verified through Sanger sequencing, demonstrating concordance with results obtained from next generation sequencing. Overall, LBDA-qPCR provides a simple yet ultrasensitive approach for multiplexed detection of low VAF mutations hotspots, presenting a powerful tool for cancer diagnosis and monitoring.
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Affiliation(s)
- Yunpei Si
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiawen Wang
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xinglei Su
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
- School of Life Sciences, Shanghai University, Shanghai, 200444, China
- Institute of Molecular Medicine (IMM) Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China
| | - Zhi Weng
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Qiongzheng Hu
- School of Pharmaceutical Sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250014, China
| | - Qian Li
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | | | - Yunshan Wang
- Department of Clinical Laboratory, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021, Shandong, China
| | - Shihua Luo
- Department of Traumatology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200025, China
| | - Ping Song
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
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14
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Chen X, Chen C, Tu Z, Guo Z, Lu T, Li J, Wen Y, Chen D, Lei W, Wen W, Li H. Intranasal PAMAM-G3 scavenges cell-free DNA attenuating the allergic airway inflammation. Cell Death Discov 2024; 10:213. [PMID: 38698016 PMCID: PMC11065999 DOI: 10.1038/s41420-024-01980-x] [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: 10/15/2023] [Revised: 04/11/2024] [Accepted: 04/19/2024] [Indexed: 05/05/2024] Open
Abstract
Allergic airway inflammation (AAI), including allergic rhinitis (AR) and allergic asthma, is driven by epithelial barrier dysfunction and type 2 inflammation. However, the underlying mechanism remains uncertain and available treatments are constrained. Consequently, we aim to explore the role of cell-free DNA (cfDNA) in AAI and assess the potential alleviating effects of cationic polymers (CPs) through cfDNA elimination. Levels of cfDNA were evaluated in AR patients, allergen-stimulated human bronchial epithelium (BEAS-2B cells) and primary human nasal epithelium from both AR and healthy control (HC), and AAI murine model. Polyamidoamine dendrimers-generation 3 (PAMAM-G3), a classic type of cationic polymers, were applied to investigate whether the clearance of cfDNA could ameliorate airway epithelial dysfunction and inhibit AAI. The levels of cfDNA in the plasma and nasal secretion from AR were higher than those from HC (P < 0.05). Additionally, cfDNA levels in the exhaled breath condensate (EBC) were positively correlated with Interleukin (IL)-5 levels in EBC (R = 0.4191, P = 0.0001). Plasma cfDNA levels negatively correlated with the duration of allergen immunotherapy treatment (R = -0.4297, P = 0.006). Allergen stimulated cfDNA secretion in vitro (P < 0.001) and in vivo (P < 0.0001), which could be effectively scavenged with PAMAM-G3. The application of PAMAM-G3 inhibited epithelial barrier dysfunction in vitro and attenuated the development of AAI in vivo. This study elucidates that cfDNA, a promising biomarker for monitoring disease severity, aggravates AAI and the application of intranasal PAMAM-G3 could potentially be a novel therapeutic intervention for AAI. Allergen stimulates the secretion of cell-free DNA (cfDNA) in both human and mouse airway. Intranasal polyamidoamine dendrimers-generation 3 (PAMAM-G3) scavenges cfDNA and alleviates allergic airway inflammation.
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Affiliation(s)
- Xiumin Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Changhui Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhaoxu Tu
- Department of Otorhinolaryngology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zeling Guo
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Tong Lu
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jian Li
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Otorhinolaryngology, Guangxi Hospital Division of the First Affiliated Hospital, Sun Yat-sen University, Nanning, China
| | - Yihui Wen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dehua Chen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenbin Lei
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Weiping Wen
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China.
- Department of Otorhinolaryngology, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Hang Li
- Department of Otorhinolaryngology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
- Otorhinolaryngology Hospital, Sun Yat-sen University, Guangzhou, China.
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15
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Heussner RT, Whalen RM, Anderson A, Theison H, Baik J, Gibbs S, Wong MH, Chang YH. Quantitative image analysis pipeline for detecting circulating hybrid cells in immunofluorescence images with human-level accuracy. Cytometry A 2024; 105:345-355. [PMID: 38385578 DOI: 10.1002/cyto.a.24826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/10/2024] [Accepted: 01/24/2024] [Indexed: 02/23/2024]
Abstract
Circulating hybrid cells (CHCs) are a newly discovered, tumor-derived cell population found in the peripheral blood of cancer patients and are thought to contribute to tumor metastasis. However, identifying CHCs by immunofluorescence (IF) imaging of patient peripheral blood mononuclear cells (PBMCs) is a time-consuming and subjective process that currently relies on manual annotation by laboratory technicians. Additionally, while IF is relatively easy to apply to tissue sections, its application to PBMC smears presents challenges due to the presence of biological and technical artifacts. To address these challenges, we present a robust image analysis pipeline to automate the detection and analysis of CHCs in IF images. The pipeline incorporates quality control to optimize specimen preparation protocols and remove unwanted artifacts, leverages a β-variational autoencoder (VAE) to learn meaningful latent representations of single-cell images, and employs a support vector machine (SVM) classifier to achieve human-level CHC detection. We created a rigorously labeled IF CHC data set including nine patients and two disease sites with the assistance of 10 annotators to evaluate the pipeline. We examined annotator variation and bias in CHC detection and provided guidelines to optimize the accuracy of CHC annotation. We found that all annotators agreed on CHC identification for only 65% of the cells in the data set and had a tendency to underestimate CHC counts for regions of interest (ROIs) containing relatively large amounts of cells (>50,000) when using the conventional enumeration method. On the other hand, our proposed approach is unbiased to ROI size. The SVM classifier trained on the β-VAE embeddings achieved an F1 score of 0.80, matching the average performance of human annotators. Our pipeline enables researchers to explore the role of CHCs in cancer progression and assess their potential as a clinical biomarker for metastasis. Further, we demonstrate that the pipeline can identify discrete cellular phenotypes among PBMCs, highlighting its utility beyond CHCs.
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Affiliation(s)
- Robert T Heussner
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
| | - Riley M Whalen
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, Oregon, USA
| | - Ashley Anderson
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, Oregon, USA
| | - Heather Theison
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, Oregon, USA
| | - Joseph Baik
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
| | - Summer Gibbs
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, Oregon, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Melissa H Wong
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, Oregon, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
| | - Young Hwan Chang
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, Oregon, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, Oregon, USA
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16
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Dong T, Ding R, Zhou R, Shen C, Sheridan W, Paez D, Zhao Z, Wu P, Li F. A Portable Nucleic Acid Testing Platform with Photosensitization, a Three-Dimensionally Printed Multipiece Chip, and Digital Color Sensing. Anal Chem 2024; 96:6628-6633. [PMID: 38626114 DOI: 10.1021/acs.analchem.3c05897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Portable nucleic acid testing (NAT) holds great promise for point-of-care disease diagnosis and field-based applications but remains difficult to achieve. Herein, we describe a portable NAT that streamlines loop-mediated isothermal amplification with photosensitization-based color development in a fully sealed 3D-printed multipiece chip. Using a smartphone accessory and an APP, we also introduce a calibration-free quantification approach via digital color sensing and library matching. With these innovative approaches, our detection platform is highly accessible, allowing for rapid and sensitive NAT without requiring sophisticated instruments and well-trained personnel. The field applicability of our NAT platform was demonstrated by detecting tuberculosis infections in clinical sputum samples and food adulteration in commercial salmon meat products.
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Affiliation(s)
- Tianyu Dong
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Ruolin Ding
- National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610064, P. R. China
| | - Rongxing Zhou
- Biliary Surgical Department of West China Hospital, Sichuan University, Chengdu 610064, P. R. China
| | - Chenlan Shen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
- Department of Laboratory Medicine, Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu 610064, P. R. China
| | - Will Sheridan
- Nix Sensor Ltd., 286 Sanford Ave N Unit 501, Hamilton, Ontario L8L 6A1, Canada
| | - Dixon Paez
- Nix Sensor Ltd., 286 Sanford Ave N Unit 501, Hamilton, Ontario L8L 6A1, Canada
| | - Zhihe Zhao
- National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu 610064, P. R. China
| | - Peng Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
- Analytical & Testing Center, Sichuan University, Chengdu 610064, P. R. China
| | - Feng Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
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17
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Wu Y, Guo J, Li W, Xiu X, Thirunavukarasu D, Wang Y, Wang K, Chen W, Yu Zhang D, Yang X, Fan C, Song P. Enhanced Detection of Novel Low-Frequency Gene Fusions via High-Yield Ligation and Multiplexed Enrichment Sequencing. Angew Chem Int Ed Engl 2024; 63:e202316484. [PMID: 38494435 DOI: 10.1002/anie.202316484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 03/12/2024] [Accepted: 03/14/2024] [Indexed: 03/19/2024]
Abstract
Panel-based methods are commonly employed for the analysis of novel gene fusions in precision diagnostics and new drug development in cancer. However, these methods are constrained by limitations in ligation yield and the enrichment of novel gene fusions with low variant allele frequencies. In this study, we conducted a pioneering investigation into the stability of double-stranded adapter DNA, resulting in improved ligation yield and enhanced conversion efficiency. Additionally, we implemented blocker displacement amplification, achieving a remarkable 7-fold enrichment of novel gene fusions. Leveraging the pre-enrichment achieved with this approach, we successfully applied it to Nanopore sequencing, enabling ultra-fast analysis of novel gene fusions within one hour with high sensitivity. This method offers a robust and remarkably sensitive mean of analyzing novel gene fusions, promising the discovery of pivotal biomarkers that can significantly improve cancer diagnostics and the development of new therapeutic strategies.
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Affiliation(s)
- Yi Wu
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jinxiao Guo
- Shanghai Sixth People's Hospital Affiliated to, Shanghai Jiao Tong University School of Medicine, Shanghai, 200233, China
| | - Wenjun Li
- NuProbe USA, Inc., 2575 West Bellfort Avenue, Ste. 200 Houston, TX 77054, USA
| | - Xuehao Xiu
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | | | - Yudong Wang
- Department of Gynecologic Oncology, The International Peace Maternity and Child Health Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Kai Wang
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, 322000, China
| | - Weiyu Chen
- Department of Respiratory and Critical Care Medicine, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, 322000, China
| | - David Yu Zhang
- NuProbe USA, Inc., 2575 West Bellfort Avenue, Ste. 200 Houston, TX 77054, USA
| | - Xiurong Yang
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, New Cornerstone Science Laboratory, Frontiers Science Center for Transformative Molecules, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ping Song
- School of Biomedical Engineering, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
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18
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Wu MY, Chen L, Liu LC, Liu MJ, Li YF, Zheng HY, Leng L, Zou YJ, Chen WJ, Li J. Using circulating microbial cell-free DNA to identify persistent Treponema pallidum infection in serofast syphilis patients. iScience 2024; 27:109399. [PMID: 38523794 PMCID: PMC10959656 DOI: 10.1016/j.isci.2024.109399] [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: 10/12/2023] [Revised: 01/06/2024] [Accepted: 02/28/2024] [Indexed: 03/26/2024] Open
Abstract
The question of whether serofast status of syphilis patients indicates an ongoing low-grade Treponema pallidum (T. pallidum) infection remains unanswered. To address this, we developed a machine learning model to identify T. pallidum in cell-free DNA (cfDNA) using next-generation sequencing (NGS). Our findings showed that a TP_rate cut-off of 0.033 demonstrated superior diagnostic performance for syphilis, with a specificity of 92.3% and a sensitivity of 71.4% (AUROC = 0.92). This diagnosis model predicted that 20 out of 92 serofast patients had a persistent low-level infection. Based on these predictions, re-treatment was administered to these patients and its efficacy was evaluated. The results showed a statistically significant decrease in RPR titers in the prediction-positive group compared to the prediction-negative group after re-treatment (p < 0.05). These findings provide evidence for the existence of T. pallidum under serofast status and support the use of intensive treatment for serofast patients at higher risk in clinical practice.
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Affiliation(s)
- Meng Yin Wu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Lu Chen
- Beijing Macro & Micro-test Bio-Tech Co., Ltd, Beijing 100083, China
| | - Li Cheng Liu
- Beijing Macro & Micro-test Bio-Tech Co., Ltd, Beijing 100083, China
| | - Ming Juan Liu
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yan Feng Li
- Department of Neurology, Peking Union Medical College Hospital, Beijing 100730, China
| | - He Yi Zheng
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Ling Leng
- State Key Laboratory of Complex Severe and Rare Diseases, Translational Medicine Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Yi Jun Zou
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Jun Chen
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Li
- Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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19
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Deng E, Fan X. Categorizing Extrachromosomal Circular DNA as Biomarkers in Serum of Cancer. Biomolecules 2024; 14:488. [PMID: 38672504 PMCID: PMC11048305 DOI: 10.3390/biom14040488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024] Open
Abstract
Extrachromosomal circular DNA (eccDNA), a double-stranded circular DNA molecule found in multiple organisms, has garnered an increasing amount of attention in recent years due to its close association with the initiation, malignant progression, and heterogeneous evolution of cancer. The presence of eccDNA in serum assists in non-invasive tumor diagnosis as a biomarker that can be assessed via liquid biopsies. Furthermore, the specific expression patterns of eccDNA provide new insights into personalized cancer therapy. EccDNA plays a pivotal role in tumorigenesis, development, diagnosis, and treatment. In this review, we comprehensively outline the research trajectory of eccDNA, discuss its role as a diagnostic and prognostic biomarker, and elucidate its regulatory mechanisms in cancer. In particular, we emphasize the potential application value of eccDNA in cancer diagnosis and treatment and anticipate the development of novel tumor diagnosis strategies based on serum eccDNA in the future.
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Affiliation(s)
- Enze Deng
- Guangzhou National Laboratory, No. 9 XingDaoHuanBei Road, Guangzhou International Bio Island, Guangzhou 510005, China
| | - Xiaoying Fan
- Guangzhou National Laboratory, No. 9 XingDaoHuanBei Road, Guangzhou International Bio Island, Guangzhou 510005, China
- GMU-GIBH Joint School of Life Sciences, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou 510005, China
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20
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Bar Y, Keenan JC, Niemierko A, Medford AJ, Isakoff SJ, Ellisen LW, Bardia A, Vidula N. Genomic spectrum of actionable alterations in serial cell free DNA (cfDNA) analysis of patients with metastatic breast cancer. NPJ Breast Cancer 2024; 10:27. [PMID: 38605020 PMCID: PMC11009384 DOI: 10.1038/s41523-024-00633-7] [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: 08/29/2023] [Accepted: 03/25/2024] [Indexed: 04/13/2024] Open
Abstract
We aimed to study the incidence and genomic spectrum of actionable alterations (AA) detected in serial cfDNA collections from patients with metastatic breast cancer (MBC). Patients with MBC who underwent plasma-based cfDNA testing (Guardant360®) between 2015 and 2021 at an academic institution were included. For patients with serial draws, new pathogenic alterations in each draw were classified as actionable alterations (AA) if they met ESCAT I or II criteria of the ESMO Scale for Clinical Actionability of Molecular Targets (ESCAT). A total of 344 patients with hormone receptor-positive (HR+)/HER2-negative (HER2-) MBC, 95 patients with triple-negative (TN) MBC and 42 patients with HER2-positive (HER2 + ) MBC had a baseline (BL) cfDNA draw. Of these, 139 HR+/HER2-, 33 TN and 13 HER2+ patients underwent subsequent cfDNA draws. In the HR+/HER2- cohort, the proportion of patients with new AA decreased from 63% at BL to 27-33% in the 2nd-4th draws (p < 0.0001). While some of the new AA in subsequent draws from patients with HR+/HER2- MBC were new actionable variants in the same genes that were known to be altered in previous draws, 10-24% of patients had new AA in previously unaltered genes. The incidence of new AA also decreased with subsequent draws in the TN and HER2+ cohorts (TN: 25% to 0-9%, HER2 + : 38% to 14-15%). While the incidence of new AA in serial cfDNA decreased with subsequent draws across all MBC subtypes, new alterations with a potential impact on treatment selection continued to emerge, particularly for patients with HR+/HER2- MBC.
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Affiliation(s)
- Yael Bar
- Massachusetts General Hospital Cancer Center, Boston, MA, USA.
- Tel Aviv Sourasky Medical Center and The Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | | | | | - Arielle J Medford
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Steven J Isakoff
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Leif W Ellisen
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Aditya Bardia
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
| | - Neelima Vidula
- Massachusetts General Hospital Cancer Center, Boston, MA, USA
- Harvard Medical School, Boston, MA, USA
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21
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Caggiano C, Morselli M, Qian X, Celona B, Thompson M, Wani S, Tosevska A, Taraszka K, Heuer G, Ngo S, Steyn F, Nestor P, Wallace L, McCombe P, Heggie S, Thorpe K, McElligott C, English G, Henders A, Henderson R, Lomen-Hoerth C, Wray N, McRae A, Pellegrini M, Garton F, Zaitlen N. Tissue informative cell-free DNA methylation sites in amyotrophic lateral sclerosis. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2024:2024.04.08.24305503. [PMID: 38645132 PMCID: PMC11030489 DOI: 10.1101/2024.04.08.24305503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Cell-free DNA (cfDNA) is increasingly recognized as a promising biomarker candidate for disease monitoring. However, its utility in neurodegenerative diseases, like amyotrophic lateral sclerosis (ALS), remains underexplored. Existing biomarker discovery approaches are tailored to a specific disease context or are too expensive to be clinically practical. Here, we address these challenges through a new approach combining advances in molecular and computational technologies. First, we develop statistical tools to select tissue-informative DNA methylation sites relevant to a disease process of interest. We then employ a capture protocol to select these sites and perform targeted methylation sequencing. Multi-modal information about the DNA methylation patterns are then utilized in machine learning algorithms trained to predict disease status and disease progression. We applied our method to two independent cohorts of ALS patients and controls (n=192). Overall, we found that the targeted sites accurately predicted ALS status and replicated between cohorts. Additionally, we identified epigenetic features associated with ALS phenotypes, including disease severity. These findings highlight the potential of cfDNA as a non-invasive biomarker for ALS.
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Affiliation(s)
- C Caggiano
- Department of Neurology, UCLA, Los Angeles, California
- Institute of Genomic Health, Icahn School of Medicine at Mt Sinai, New York, New York
| | - M Morselli
- Department of Molecular, Cell, and Developmental Biology, UCLA; Los Angeles, California
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - X Qian
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - B Celona
- Cardiovascular Research Institute, UCSF, San Francisco, California
| | - M Thompson
- Department of Neurology, UCLA, Los Angeles, California
- Systems and Synthetic Biology, Centre for Genomic Regulation, Barcelona, Spain
| | - S Wani
- Cardiovascular Research Institute, UCSF, San Francisco, California
| | - A Tosevska
- Department of Molecular, Cell, and Developmental Biology, UCLA; Los Angeles, California
- Department of Internal Medicine III, Division of Rheumatology, Medical University of Vienna, Vienna, Austria
| | - K Taraszka
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts
| | - G Heuer
- Computational and Systems Biology Interdepartmental Program, UCLA, Los Angeles, California
| | - S Ngo
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Australia
- Department of Neurology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - F Steyn
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Brisbane, Australia
| | - P Nestor
- Queensland Brain Institute, Unviversity of Queensland, Brisbane, Australia
- Mater Public Hospital, Brisbane, Australia
| | - L Wallace
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - P McCombe
- Department of Neurology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - S Heggie
- Department of Neurology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - K Thorpe
- Department of Neurology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | | | - G English
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - A Henders
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - R Henderson
- Department of Neurology, Royal Brisbane and Women's Hospital, Brisbane, QLD, Australia
| | - C Lomen-Hoerth
- Department of Neurology, UCSF, San Francisco, California
| | - N Wray
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - A McRae
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - M Pellegrini
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, Parma, Italy
| | - F Garton
- Institute for Molecular Biology, University of Queensland, Brisbane, Australia
| | - N Zaitlen
- Department of Neurology, UCLA, Los Angeles, California
- Department of Human Genetics, University of California Los Angeles, Los Angeles, California
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22
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Bhalla S, Passarelli R, Biswas A, De S, Ghodoussipour S. Plasma-Derived Cell-Free DNA as a Biomarker for Early Detection, Prognostication, and Personalized Treatment of Urothelial Carcinoma. J Clin Med 2024; 13:2057. [PMID: 38610824 PMCID: PMC11012937 DOI: 10.3390/jcm13072057] [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: 12/22/2023] [Revised: 03/20/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024] Open
Abstract
Bladder cancer (BC) is one of the most common malignancies in the United States, with over 80,000 new cases and 16,000 deaths each year. Urothelial carcinoma (UC) is the most common histology and accounts for 90% of cases. BC management is complicated by recurrence rates of over 50% in both muscle-invasive and non-muscle-invasive bladder cancer. As such, the American Urological Association (AUA) recommends that patients undergo close surveillance during and after treatment. This surveillance is in the form of cystoscopy or imaging tests, which can be invasive and costly tests. Considering this, there have been recent pushes to find complements to bladder cancer surveillance. Cell-free DNA (CfDNA), or DNA released from dying cells, and circulating tumor DNA (ctDNA), or mutated DNA released from tumor cells, can be analyzed to detect and characterize the molecular characteristics of tumors. Research has shown promising results for ctDNA use in the BC care realm. A PubMed literature review was performed finding studies discussing cfDNA and ctDNA in BC detection, prognostication, and monitoring for recurrence. Keywords used included bladder cancer, cell-free DNA, circulating tumor DNA, urothelial carcinoma, and liquid biopsy. Studies show that ctDNA can serve as prognostic indicators of both early- and late-stage BC, aid in risk stratification prior to major surgery, assist in detection of disease progression and metastatic relapse, and can assess patients who may respond to immunotherapy. The benefit of ctDNA is not confined to BC, as studies have also suggested its promise as a biomarker for neoadjuvant chemotherapy in upper-tract UC. However, there are some limitations to ctDNA that require improvements in ctDNA-specific detection methods and BC-specific mutations before widespread utilization can be achieved. Further prospective, randomized trials are needed to elucidate the true potential ctDNA has in advancements in BC care.
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Affiliation(s)
- Sophia Bhalla
- Division of Urology, Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Rutgers Robert Wood Johnson University Hospital, 195 Albany St., New Brunswick, NJ 08901, USA; (S.B.); (R.P.)
| | - Rachel Passarelli
- Division of Urology, Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Rutgers Robert Wood Johnson University Hospital, 195 Albany St., New Brunswick, NJ 08901, USA; (S.B.); (R.P.)
| | - Antara Biswas
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, 195 Albany St., New Brunswick, NJ 08901, USA; (A.B.); (S.D.)
| | - Subhajyoti De
- Center for Systems and Computational Biology, Rutgers Cancer Institute of New Jersey, Rutgers University, 195 Albany St., New Brunswick, NJ 08901, USA; (A.B.); (S.D.)
| | - Saum Ghodoussipour
- Division of Urology, Section of Urologic Oncology, Rutgers Cancer Institute of New Jersey, Rutgers Robert Wood Johnson University Hospital, 195 Albany St., New Brunswick, NJ 08901, USA; (S.B.); (R.P.)
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23
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Lin S, Wang S, Xu B. Fragmentation patterns of cell-free DNA and somatic mutations in the urine of metastatic breast cancer patients. J Cancer Res Ther 2024; 20:563-569. [PMID: 38454812 DOI: 10.4103/jcrt.jcrt_1359_23] [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: 06/14/2023] [Accepted: 11/08/2023] [Indexed: 03/09/2024]
Abstract
BACKGROUND Urinary cell-free deoxyribonucleic acid (DNA) (ucfDNA) holds promise as a biomarker; however, its potential remains largely unexplored. We examined the fragmentation pattern of ucfDNA and identified somatic mutations within urine samples from metastatic breast cancer (MBC) patients. METHODS Urine and blood specimens were collected before treatment from 45 MBC patients and posttreatment urine samples from 16 of the 45 patients at the China National Cancer Center. Somatic mutations and tumor mutational burden (TMB) in the urine and plasma of 10 patients were analyzed by next-generation sequencing (NGS). Fragmentation patterns of cfDNA were displayed using electropherograms. Differences in the extracted amount of cfDNA, length of cfDNA fragments, and TMB between urine and plasma were compared using a Wilcoxon test. RESULTS The fragmentation patterns of ucfDNA were categorized as follows: (1) profile A (n = 26) containing a short peak (100-200 bp) and a long peak (>1500 bp); (2) profile B (n = 8) containing only a long peak; and (3) profile C (n = 11) containing flat pattern. For profile A patients, the short-peaked ucfDNA circulating in the bloodstream was much shorter compared with plasma cfDNA (149 vs. 171 bp, Wilcoxon test, P = 0.023). The fragmentation patterns in lung metastasis patients exhibited a higher propensity toward profile C ( P = 0.002). After treatment, 87.5% of the patients exhibited consistent fragmentation patterns. The concordance rate for somatic mutations in the plasma and urine was 30%, and the median TMB of urine and plasma was not significantly different. CONCLUSIONS This study established a fragmentation pattern for ucfDNA and detected somatic mutations in the urine of MBC patients. These results suggest the potential application of ucfDNA as a biomarker for MBC.
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Affiliation(s)
- Shaoyan Lin
- Department of Clinical Research, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Shusen Wang
- Department of Medical Oncology, State Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-sen University Cancer Center, Guangzhou, P. R. China
| | - Binghe Xu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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24
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Pomerantz T, Brooks R. Circulating Tumor DNA (ctDNA) and Its Role in Gynecologic Malignancies. Curr Treat Options Oncol 2024; 25:510-522. [PMID: 38472567 DOI: 10.1007/s11864-024-01180-w] [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] [Accepted: 01/10/2024] [Indexed: 03/14/2024]
Abstract
OPINION STATEMENT Circulating tumor DNA (ctDNA) refers to small fragments of DNA released into the bloodstream by cancer cells. It is obtained through "liquid biopsy;" which most commonly refers to plasma or blood samples, but can be obtained from a number of bodily fluids including ascitic fluid, saliva, and even urine and stool. ctDNA is detected via polymerase chain reaction (PCR) or next-generation sequencing (NGS). The DNA from these samples is analyzed for the detection of point mutations, copy-number alterations, gene fusion, and DNA methylation. These results have the potential for use in cancer diagnosis, determining prognosis, targeting gene-specific therapies, and monitoring for/predicting disease recurrence and response to treatment. ctDNA offers an alternative to tissue biopsy; it is less invasive and can be monitored serially over time without multiple procedures. Moreover it may have the ability to detect disease recurrence or predict behavior in a way that solid tissue biopsies, tumor marker surveillance, and imaging cannot. Recent explosion in interest in ctDNA shows promising developments for widespread adoption of these techniques in cancer care. However, the use of ctDNA in diagnosis and treatment of gynecologic malignancies is currently limited, compared to adoption in other solid-organ tumors such as breast and colorectal cancers. Compared to other cancer types, there appear to be fewer comprehensive studies and clinical validations specifically focusing on the use of ctDNA in gynecologic cancers. More research is needed in this area to advance the potential for use of ctDNA in ovarian, endometrial, and cervical cancers before this can be routinely adopted to improve care for patients with gynecologic malignancies.
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Affiliation(s)
- Tali Pomerantz
- University of California Davis Medical Center, 4860 Y Street, Suite 2500, Sacramento, CA, 95817, USA.
| | - Rebecca Brooks
- University of California Davis Medical Center, 4860 Y Street, Suite 2500, Sacramento, CA, 95817, USA
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25
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Lai HF, Wang SE, Chen SC, Shyr BS, Shyr YM, Shyr BU. The emerging role of cell-free DNA as a molecular marker for duodenal adenocarcinoma. J Chin Med Assoc 2024; 87:422-427. [PMID: 38391235 DOI: 10.1097/jcma.0000000000001079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/24/2024] Open
Abstract
BACKGROUND Duodenal adenocarcinoma is rare and its prognostic factors remain controversial. In our study, the role of cell-free deoxyribonucleic acid (cfDNA) as prognostic factor in duodenal adenocarcinoma was evaluated. METHODS From June 2003 to July 2021, plasma samples were collected from 41 patients with duodenal adenocarcinoma. Plasma cfDNA was assessed in combination with clinicopathological and biochemical characteristics. Univariate and multivariate analyses were conducted to identify independent prognostic factors for overall survival with a Cox proportional hazards regression model. RESULTS The 1- and 5-year survival rates of the patients with high plasma cfDNA level (>9288 copies/mL) group were 58.7% and 17.6%, respectively, which were much lower than patients with low cfDNA level (≤9288 copies/mL), with 95.2% and 64.6%. In univariate analysis, high cfDNA level, lymph node involvement, lymphovascular invasion, and tumor stage were associated with decreased survival. When subjected to multivariate analysis, only high cfDNA level showed significance in influencing the overall survival of duodenal cancer. CONCLUSION cfDNA analysis is simple and noninvasive. High cfDNA level is a strong independent prognostic factor for decreased overall survival and it should be integrated into clinical care.
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Affiliation(s)
- Hon-Fan Lai
- Division of General Surgery, Department of Surgery, Taipei Veterans General Hospital and National Yang Ming Chiao Tung University, Taipei, Taiwan, ROC
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26
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Wojtkowska M, Karczewska N, Pacewicz K, Pacak A, Kopeć P, Florczak-Wyspiańska J, Popławska-Domaszewicz K, Małkiewicz T, Sokół B. Quantification of Circulating Cell-Free DNA in Idiopathic Parkinson's Disease Patients. Int J Mol Sci 2024; 25:2818. [PMID: 38474065 DOI: 10.3390/ijms25052818] [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: 01/26/2024] [Revised: 02/21/2024] [Accepted: 02/26/2024] [Indexed: 03/14/2024] Open
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative disorders globally and leads to an excessive loss of dopaminergic neurons in the substantia nigra of the brain. Circulating cell-free DNA (ccf-DNA) are double-stranded DNA fragments of different sizes and origins that are released into the serum and cerebrospinal fluid (CSF) due to cell death (i.e., necrosis and apoptosis) or are actively released by viable cells via exocytosis and NETosis. Using droplet digital polymerase chain reaction (ddPCR), we comprehensively analyzed and distinguished circulating cell-free mitochondrial DNA (ccf mtDNA) and circulating cell-free nuclear DNA (ccfDNA) in the serum and CSF of PD and control patients. The quantitative analysis of serum ccf-DNA in PD patients demonstrated a significant increase in ccf mtDNA and ccfDNA compared to that in healthy control patients and a significantly higher copy of ccf mtDNA when compared to ccfDNA. Next, the serum ccf mtDNA levels significantly increased in male PD patients compared to those in healthy male controls. Furthermore, CSF ccf mtDNA in PD patients increased significantly compared to ccfDNA, and ccf mtDNA decreased in PD patients more than it did in healthy controls. These decreases were not statistically significant but were in agreement with previous data. Interestingly, ccf mtDNA increased in healthy control patients in both serum and CSF as compared to ccfDNA. The small sample size of serum and CSF were the main limitations of this study. To the best of our knowledge, this is the first comprehensive study on serum and CSF of PD patients using ddPCR to indicate the distribution of the copy number of ccf mtDNA as well as ccfDNA. If validated, we suggest that ccf mtDNA has greater potential than ccfDNA to lead the development of novel treatments for PD patients.
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Affiliation(s)
- Małgorzata Wojtkowska
- Department of Bioenergetics, Faculty of Biology, Adam Mickiewicz University, 61-614 Poznan, Poland
| | - Natalia Karczewska
- Centre for Chemical Biology, Institute of Bioorganic Chemistry, Polish Academy of Sciences, 61-704 Poznan, Poland
| | - Klaudia Pacewicz
- Department of Bioenergetics, Faculty of Biology, Adam Mickiewicz University, 61-614 Poznan, Poland
| | - Andrzej Pacak
- Department of Gene Expression, Faculty of Biology Poznan, Adam Mickiewicz University, 61-614 Poznan, Poland
| | - Piotr Kopeć
- Department of Computational Biology, Faculty of Biology, Adam Mickiewicz University, 61-614 Poznan, Poland
| | | | | | - Tomasz Małkiewicz
- Department of Teaching Anaesthesiology and Intensive Therapy, Poznan University of Medical Sciences, 60-355 Poznan, Poland
| | - Bartosz Sokół
- Department of Neurosurgery, Poznan University of Medical Sciences, 60-355 Poznan, Poland
- Hospital of Joseph Strus in Poznan, 61-285 Poznan, Poland
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27
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Bruno W, Ghiorzo P. Special Issue "Molecular Advances in Cancer Genetics 3.0". Int J Mol Sci 2024; 25:2717. [PMID: 38473964 DOI: 10.3390/ijms25052717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
The third volume of this Special Issue focuses on new advances in cancer genetics studies and collates papers reporting on a variety of mechanisms of tumorigenesis, the need to explore them from multiple perspectives, and the difficulties in exploring them, as well as the challenge of integrating them into a unifying but still different model for each tumor type [...].
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Affiliation(s)
- William Bruno
- Genetics of Rare Cancers, IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genoa, Italy
- Department of Internal Medicine and Medical Specialties (DIMI), University of Genoa, Viale Benedetto XV 6, 16132 Genoa, Italy
| | - Paola Ghiorzo
- Genetics of Rare Cancers, IRCCS Ospedale Policlinico San Martino, Largo Rosanna Benzi 10, 16132 Genoa, Italy
- Department of Internal Medicine and Medical Specialties (DIMI), University of Genoa, Viale Benedetto XV 6, 16132 Genoa, Italy
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28
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Galant N, Nicoś M, Kuźnar-Kamińska B, Krawczyk P. Variant Allele Frequency Analysis of Circulating Tumor DNA as a Promising Tool in Assessing the Effectiveness of Treatment in Non-Small Cell Lung Carcinoma Patients. Cancers (Basel) 2024; 16:782. [PMID: 38398173 PMCID: PMC10887123 DOI: 10.3390/cancers16040782] [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: 01/22/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Despite the different possible paths of treatment, lung cancer remains one of the leading causes of death in oncological patients. New tools guiding the therapeutic process are under scientific investigation, and one of the promising indicators of the effectiveness of therapy in patients with NSCLC is variant allele frequency (VAF) analysis. VAF is a metric characterized as the measurement of the specific variant allele proportion within a genomic locus, and it can be determined using methods based on NGS or PCR. It can be assessed using not only tissue samples but also ctDNA (circulating tumor DNA) isolated from liquid biopsy. The non-invasive characteristic of liquid biopsy enables a more frequent collection of material and increases the potential of VAF analysis in monitoring therapy. Several studies have been performed on patients with NSCLC to evaluate the possibility of VAF usage. The research carried out so far demonstrates that the evaluation of VAF dynamics may be useful in monitoring tumor progression, remission, and recurrence during or after treatment. Moreover, the use of VAF analysis appears to be beneficial in making treatment decisions. However, several issues require better understanding and standardization before VAF testing can be implemented in clinical practice. In this review, we discuss the difficulties in the application of ctDNA VAF analysis in clinical routine, discussing the diagnostic and methodological challenges in VAF measurement in liquid biopsy. We highlight the possible applications of VAF-based measurements that are under consideration in clinical trials in the monitoring of personalized treatments for patients with NSCLC.
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Affiliation(s)
- Natalia Galant
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Marcin Nicoś
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-059 Lublin, Poland
| | - Barbara Kuźnar-Kamińska
- Department of Pulmonology, Allergology and Respiratory Oncology, Poznan University of Medical Sciences, 61-710 Poznan, Poland;
| | - Paweł Krawczyk
- Department of Pneumonology, Oncology and Allergology, Medical University of Lublin, 20-059 Lublin, Poland
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Li Y, Cai M, Zhang W, Liu Y, Yuan X, Han N, Li J, Jin S, Ding C. Cas12a-based direct visualization of nanoparticle-stabilized fluorescence signal for multiplex detection of DNA methylation biomarkers. Biosens Bioelectron 2024; 244:115810. [PMID: 37924654 DOI: 10.1016/j.bios.2023.115810] [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: 09/11/2023] [Revised: 10/24/2023] [Accepted: 10/30/2023] [Indexed: 11/06/2023]
Abstract
The CRISPR-Cas12a RNA-guided complexes hold immense promise for nucleic acid detection. However, limitations arise from their specificity in detecting off-targets and the stability of the signal molecules. Here, we have developed a platform that integrates multiplex amplification and nanomolecular-reporting signals, allowing us to detect various clinically relevant nucleic acid targets with enhanced stability, sensitivity, and visual interpretation. Through the electrostatic co-assembly of the Oligo reporter with oppositely charged nanoparticles, we observed a significant enhancement in its stability in low-pollution environments, reaching up to a threefold increase compared to the original version. Additionally, the fluorescence efficiency was expanded by three orders of magnitude, broadening the detection range considerably. Utilizing a multiplex strategy, this assay can accomplish simultaneous detection of multiple targets and single-point indication detection of nine specific targets. This significant advancement heightened the sensitivity of disease screening and improved the accuracy of diagnosing disease-related changes. We tested this assay in a colorectal cancer model, demonstrating that it can identify DNA methylation features at the aM-level within 40-60 min. Validation using clinical samples yielded consistent results with qPCR and bisulfite sequencing, affirming the assay's reliability and potential for clinical applications.
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Affiliation(s)
- Yu Li
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Miaomiao Cai
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Wenwen Zhang
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Ying Liu
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Xiaoqing Yuan
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Na Han
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Jing Li
- Yinchuan Hospital of Traditional Chinese Medicine, Ningxia, 750001, China
| | - Shengnan Jin
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Chunming Ding
- Key Laboratory of Laboratory Medicine, Ministry of Education of China, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, 200032, China.
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30
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Tsiatsianis GC, Chan CSY, Mouratidis I, Chantzi N, Tsiatsiani AM, Yee NS, Zaravinos A, Kantere V, Georgakopoulos-Soares I. Peptide absent sequences emerging in human cancers. Eur J Cancer 2024; 196:113421. [PMID: 37952501 DOI: 10.1016/j.ejca.2023.113421] [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: 08/09/2023] [Revised: 11/01/2023] [Accepted: 11/01/2023] [Indexed: 11/14/2023]
Abstract
Early diagnosis of cancer can significantly improve survival of cancer patients; however sensitive and highly specific biomarkers for cancer detection are currently lacking for most cancer types. Nullpeptides are short peptides that are absent from the human proteome. Here, we examined the emergence of nullpeptides during cancer development. We analyzed 3,600,964 somatic mutations across 10,064 whole exome sequencing tumor samples spanning 32 cancer types. We analyze RNA-seq data from primary tumor samples to identify the subset of nullpeptides that emerge in highly expresed genes. We show that nullpeptides, and particularly the subset that is highly recurrent across cancer patients, can be identified in tumor biopsy samples. We find that cancer genes show an excess of nullpeptides and detect nullpeptide hotspots in specific loci of oncogenes and tumor suppressors. We also observe that recurrent nullpeptides are more likely to be found in neoantigens, which have been shown to be effective targets for immunotherapy, suggesting that they can be used to prioritize candidates. Our findings provide evidence for the utility of nullpeptides as cancer detection and therapeutic biomarkers.
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Affiliation(s)
- Georgios Christos Tsiatsianis
- Institute for Personalized Medicine, Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA, USA; National Technical University of Athens, School of Electrical and Computer Engineering, Athens, Greece
| | - Candace S Y Chan
- Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Ioannis Mouratidis
- Institute for Personalized Medicine, Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Nikol Chantzi
- Institute for Personalized Medicine, Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Anna Maria Tsiatsiani
- National Technical University of Athens, School of Electrical and Computer Engineering, Athens, Greece; School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - Nelson S Yee
- Division of Hematology-Oncology, Department of Medicine, Penn State Health Milton S. Hershey Medical Center, Next-Generation Therapies Program, Penn State Cancer Institute, Hershey, PA, USA
| | - Apostolos Zaravinos
- Department of Life Sciences, School of Sciences, European University Cyprus, Nicosia 1516, Cyprus; Cancer Genetics, Genomics and Systems Biology Laboratory, Basic and Translational Cancer Research Center (BTCRC), Nicosia 1516, Cyprus
| | - Verena Kantere
- School of Electrical Engineering and Computer Science, Faculty of Engineering, University of Ottawa, Canada
| | - Ilias Georgakopoulos-Soares
- Institute for Personalized Medicine, Department of Biochemistry and Molecular Biology, The Pennsylvania State University College of Medicine, Hershey, PA, USA.
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31
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Harshbarger CL. Harnessing the power of Microscale AcoustoFluidics: A perspective based on BAW cancer diagnostics. BIOMICROFLUIDICS 2024; 18:011304. [PMID: 38434238 PMCID: PMC10907075 DOI: 10.1063/5.0180158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024]
Abstract
Cancer directly affects one in every three people, and mortality rates strongly correlate with the stage at which diagnosis occurs. Each of the multitude of methods used in cancer diagnostics has its own set of advantages and disadvantages. Two common drawbacks are a limited information value of image based diagnostic methods and high invasiveness when opting for methods that provide greater insight. Microfluidics offers a promising avenue for isolating circulating tumor cells from blood samples, offering high informational value at predetermined time intervals while being minimally invasive. Microscale AcoustoFluidics, an active method capable of manipulating objects within a fluid, has shown its potential use for the isolation and measurement of circulating tumor cells, but its full potential has yet to be harnessed. Extensive research has focused on isolating single cells, although the significance of clusters should not be overlooked and requires attention within the field. Moreover, there is room for improvement by designing smaller and automated devices to enhance user-friendliness and efficiency as illustrated by the use of bulk acoustic wave devices in cancer diagnostics. This next generation of setups and devices could minimize streaming forces and thereby enable the manipulation of smaller objects, thus aiding in the implementation of personalized oncology for the next generation of cancer treatments.
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Affiliation(s)
- C. L. Harshbarger
- Department of Orthopedics, Balgrist University Hospital, University of Zurich, Zurich, Switzerland; Institute for Biomechanics, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland; and Institute for Mechanical Systems, Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
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32
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Lu W, Li F, Ouyang Y, Jiang Y, Zhang W, Bai Y. A comprehensive analysis of library preparation methods shows high heterogeneity of extrachromosomal circular DNA but distinct chromosomal amount levels reflecting different cell states. Analyst 2023; 149:148-160. [PMID: 37987554 DOI: 10.1039/d3an01300f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Extrachromosomal circular DNA (eccDNA) was discovered several decades ago, but little is known about its function. With the development of sequencing technology, several library preparation methods have been developed to elucidate the biogenesis and function of eccDNA. However, different treatment methods have certain biases that can lead to their erroneous interpretation. To address these issues, we compared the performance of different library preparation methods. Our investigation revealed that the utilization of rolling-circle amplification (RCA) and restriction enzyme linearization of mitochondrial DNA (mtDNA) significantly enhanced the efficiency of enriching extrachromosomal circular DNA (eccDNA). However, it also introduced certain biases, such as an unclear peak in ∼160-200 bp periodicity and the absence of a typical motif pattern. Furthermore, given that RCA can lead to a disproportionate change in copy numbers, eccDNA quantification using split and discordant reads should be avoided. Analysis of the genomic and elements distribution of the overall population of eccDNA molecules revealed a high correlation between the replicates, and provided a possible stability signature for eccDNA, which could potentially reflect different cell lines or cell states. However, we found only a few eccDNA with identical junction sites in each replicate, showing a high degree of heterogeneity of eccDNA. The emergence of different motif patterns flanking junctional sites in eccDNAs of varying sizes suggests the involvement of multiple potential mechanisms in eccDNA generation. This study comprehensively compares and discusses various essential approaches for eccDNA library preparation, offering valuable insights and practical advice to researchers involved in characterizing eccDNA.
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Affiliation(s)
- Wenxiang Lu
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China.
| | - Fuyu Li
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China.
| | - Yunfei Ouyang
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China.
| | - Yali Jiang
- The Friendship Hospital of Ili Kazakh Autonomous Prefecture, Ili & Jiangsu Joint Institute of Health, Yining, Xinjiang Uygur Autonomous Region, 835000, China
| | - Weizhong Zhang
- Department of Ophthalmology, First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, 210029, China
| | - Yunfei Bai
- State Key Laboratory of Digital Medical Engineering, School of Biological Science and Medical Engineering, Southeast University, Nanjing, Jiangsu, 210096, China.
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Shin S, Han S, Kim J, Shin Y, Song JJ, Hohng S. Fast, sensitive, and specific multiplexed single-molecule detection of circulating tumor DNA. Biosens Bioelectron 2023; 242:115694. [PMID: 37797531 DOI: 10.1016/j.bios.2023.115694] [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: 07/21/2023] [Revised: 09/13/2023] [Accepted: 09/14/2023] [Indexed: 10/07/2023]
Abstract
Circulating tumor DNA (ctDNA) analysis has emerged as a highly promising non-invasive assay for detection and monitoring of cancer. However, identification of multiple point-mutant ctDNAs, particularly at extremely low frequencies in early cancer stages, remains a significant challenge. To address this issue, we present a multiplexed ctDNA detection technique, SIMUL (single-molecule detection of multiple low-frequency mutations). SIMUL involves an unbiased preamplification of both wild-type and mutant DNAs, followed by the detection of mutant DNAs through single-molecule multicolor imaging. SIMUL enables highly sensitive and specific detection of multiple single-nucleotide mutations in a short span of time, even in the presence of 10,000-fold excess of wild-type DNA. Importantly, SIMUL can accurately measure mutant fractions due to its linear correlation between the number of single-molecule spots and the variant allele frequency. This breakthrough technique holds immense potential for clinical applications, offering significant improvements for example in early cancer detection and accurate evaluation of anticancer treatment responses.
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Affiliation(s)
- Soochul Shin
- Department of Physics and Astronomy, Institute of Applied Physics, Seoul National University, Seoul, Republic of Korea.
| | - Sun Han
- Department of Physics and Astronomy, Institute of Applied Physics, Seoul National University, Seoul, Republic of Korea
| | - Juyoung Kim
- Department of Physics and Astronomy, Institute of Applied Physics, Seoul National University, Seoul, Republic of Korea
| | - Yumi Shin
- Department of Biological Sciences, KI for BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Ji-Joon Song
- Department of Biological Sciences, KI for BioCentury, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Sungchul Hohng
- Department of Physics and Astronomy, Institute of Applied Physics, Seoul National University, Seoul, Republic of Korea.
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Hallermayr A, Keßler T, Steinke-Lange V, Heitzer E, Holinski-Feder E, Speicher M. The utility of liquid biopsy in clinical genetic diagnosis of cancer and monogenic mosaic disorders. MED GENET-BERLIN 2023; 35:275-284. [PMID: 38835734 PMCID: PMC11006364 DOI: 10.1515/medgen-2023-2066] [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 biopsy for minimally invasive diagnosis and monitoring of cancer patients is progressing toward routine clinical practice. With the implementation of highly sensitive next-generation sequencing (NGS) based assays for the analysis of cfDNA, however, consideration of the utility of liquid biopsy for clinical genetic testing is critical. While the focus of liquid biopsy for cancer diagnosis is the detection of circulating tumor DNA (ctDNA) as a fraction of total cell-free DNA (cfDNA), cfDNA analysis reveals both somatic mosaic tumor and germline variants and clonal hematopoiesis. Here we outline advantages and limitations of mosaic and germline variant detection as well as the impact of clonal hematopoiesis on liquid biopsy in cancer diagnosis. We also evaluate the potential of cfDNA analysis for the molecular diagnosis of monogenic mosaic disorders.
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Affiliation(s)
| | - Thomas Keßler
- MGZ - Medizinisch Genetisches Zentrum München Germany
| | | | - Ellen Heitzer
- Medical University of Graz Institute of Human Genetics, Diagnostic and Research Center for Molecular Biomedicine (Austria) Graz Austria
| | | | - Michael Speicher
- Medical University of Graz Institute of Human Genetics, Diagnostic and Research Center for Molecular Biomedicine (Austria), Neue Stiftingtalstraße 2 Graz Austria
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35
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Dreyer GJ, Drabbels JJM, de Fijter JW, van Kooten C, Reinders MEJ, Heidt S. Cell-free DNA measurement of three genomes after allogeneic MSC therapy in kidney transplant recipients indicates early cell death of infused MSC. Front Immunol 2023; 14:1240347. [PMID: 38022634 PMCID: PMC10652747 DOI: 10.3389/fimmu.2023.1240347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/22/2023] [Indexed: 12/01/2023] Open
Abstract
Introduction Mesenchymal stromal cell (MSC) therapy is a promising treatment that allows for drug minimization in clinical kidney transplantation. While it is thought that MSCs rapidly go into apoptosis after infusion, clinical evidence for this is scarce since methods to detect cell death of infused cells in vivo are lacking. Cell-free DNA (cfDNA) has recently gained attention as a biomarker for cell death. Methods In this study, we longitudinally measured cfDNA in plasma samples of the recipient, kidney donor, and allogeneic third-party MSC in the context of the Neptune study. cfDNA levels were measured at several time points before and after allogeneic MSC infusion in the 10 recipients who participated in the Neptune study. cfDNA ratios between the recipient, kidney graft, and MSC were determined. Results We observed a peak in MSC-derived cfDNA 4 h after the first and second infusions, after which MSC-derived cfDNA became undetectable. Generally, kidney graft-derived cfDNA remained in the baseline-level range. Discussion Our results support preclinical data that MSC are short-lived after infusion, also in a clinical in vivo setting, and are relevant for further research into the mechanism of action of MSC therapy.
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Affiliation(s)
- Geertje J. Dreyer
- Department of Internal Medicine (Nephrology) and Transplant Center, Leiden University Medical Center, Leiden, Netherlands
| | - Jos JM. Drabbels
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Johan W. de Fijter
- Department of Internal Medicine (Nephrology) and Transplant Center, Leiden University Medical Center, Leiden, Netherlands
| | - Cees van Kooten
- Department of Internal Medicine (Nephrology) and Transplant Center, Leiden University Medical Center, Leiden, Netherlands
| | - Marlies EJ. Reinders
- Department of Internal Medicine (Nephrology) and Transplant Center, Leiden University Medical Center, Leiden, Netherlands
- Department of Internal Medicine, Nephrology and Transplantation, Erasmus MC Transplant Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Sebastiaan Heidt
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- Department of Internal Medicine, Nephrology and Transplantation, Erasmus MC Transplant Institute, Erasmus University Medical Center, Rotterdam, Netherlands
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36
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Ma W, Zhang W, Liu H, Qian B, Lai R, Yao Z, Wang Y, Yan Y, Yuan Z. Plasma Cell-Free DNA Is a Potential Biomarker for Diagnosis of Calcific Aortic Valve Disease. Cardiology 2023; 149:155-162. [PMID: 37899036 PMCID: PMC10994581 DOI: 10.1159/000534229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Accepted: 09/14/2023] [Indexed: 10/31/2023]
Abstract
INTRODUCTION Calcific aortic valve disease (CAVD) is the third most common cardiovascular disease in aging populations. Despite a growing number of biomarkers having been shown to be associated with CAVD, a marker suitable for routine testing in clinical practice is still needed. Plasma cell-free DNA (cfDNA) has been suggested as a biomarker for diagnosis and prognosis in multiple diseases. In this study, we aimed to test whether cfDNA could be used as a biomarker for the diagnosis of CAVD. METHODS Serum samples were collected from 137 diagnosed CAVD patients and 180 normal controls. The amount of cfDNA was quantified by amplifying a short fragment (ALU 115) and a long fragment (ALU 247) using quantitative real-time PCR. The cfDNA integrity (cfDI) was calculated as the ratio of ALU247 to ALU115. The association between CAVD and cfDI was evaluated using regression analysis. RESULTS CAVD patients had increased ALU 115 fragments (median, 185.14 (416.42) versus 302.83 (665.41), p < 0.05) but a decreased value of cfDI (mean, 0.50 ± 0.25 vs. 0.41 ± 0.26, p < 0.01) in their serum when compared to controls. This difference was more dramatic in non-rheumatic CAVD patients (p < 0.001) versus rheumatic CAVD patients (no significant difference). Similarly, CAVD patients with bicuspid aortic valve (BAV) (p < 0.01) showed a greater difference than non-BAV CAVD patients (p < 0.05). Linear regression and logistic regression showed that cfDI was independently and significantly associated with the presence of CAVD (95% CI, 0.096 to 0.773, p < 0.05). The ROC assay revealed that cfDI combined with clinical characteristics had a better diagnostic value than cfDI alone (AUC = 0.6191, p < 0.001). CONCLUSION cfDI may be a potential biomarker for diagnosis of CAVD.
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Affiliation(s)
- Wangge Ma
- Department of Cardiology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Wei Zhang
- Department of General Practice, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Huahua Liu
- Department of Cardiology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Benheng Qian
- Department of Cardiology, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Rongguang Lai
- Department of Cardiology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Zijun Yao
- Department of Cardiology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yidong Wang
- Key Laboratory of Environment and Genes Related to Diseases of Ministry of Education, The Institute of Cardiovascular Sciences, School of Basic Medical Sciences; Department of Cardiology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yang Yan
- Department of Cardiovascular Surgery, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zuyi Yuan
- Department of Cardiology, First Affiliated Hospital, Xi’an Jiaotong University, Xi’an, China
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Lai JH, Keum JW, Lee HG, Molaei M, Blair EJ, Li S, Soliman JW, Raol VK, Barker CL, Fodor SPA, Fan HC, Shum EY. New realm of precision multiplexing enabled by massively-parallel single molecule UltraPCR. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.09.561546. [PMID: 37873291 PMCID: PMC10592712 DOI: 10.1101/2023.10.09.561546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
PCR has been a reliable and inexpensive method for nucleic acid detection in the past several decades. In particular, multiplex PCR is a powerful tool to analyze many biomarkers in the same reaction, thus maximizing detection sensitivity and reducing sample usage. However, balancing the amplification kinetics between amplicons and distinguishing them can be challenging, diminishing the broad adoption of high order multiplex PCR panels. Here, we present a new paradigm in PCR amplification and multiplexed detection using UltraPCR. UltraPCR utilizes a simple centrifugation workflow to split a PCR reaction into ∼34 million partitions, forming an optically clear pellet of spatially separated reaction compartments in a PCR tube. After in situ thermocycling, light sheet scanning is used to produce a 3D reconstruction of the fluorescent positive compartments within the pellet. At typical sample DNA concentrations, the magnitude of partitions offered by UltraPCR dictate that the vast majority of target molecules occupy a compartment uniquely. This single molecule realm allows for isolated amplification events, thereby eliminating competition between different targets and generating unambiguous optical signals for detection. Using a 4-color optical setup, we demonstrate that we can incorporate 10 different fluorescent dyes in the same UltraPCR reaction. We further push multiplexing to an unprecedented level by combinatorial labeling with fluorescent dyes - referred to as "comboplex" technology. Using the same 4-color optical setup, we developed a 22-target comboplex panel that can detect all targets simultaneously at high precision. Collectively, UltraPCR has the potential to push PCR applications beyond what is currently available, enabling a new class of precision genomics assays.
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Temilola DO, Wium M, Paccez J, Salukazana AS, Rotimi SO, Otu HH, Carbone GM, Kaestner L, Cacciatore S, Zerbini LF. Detection of Cancer-Associated Gene Mutations in Urinary Cell-Free DNA among Prostate Cancer Patients in South Africa. Genes (Basel) 2023; 14:1884. [PMID: 37895233 PMCID: PMC10606409 DOI: 10.3390/genes14101884] [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: 08/10/2023] [Revised: 09/14/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
Prostate cancer (PCa) is the most common cause of cancer death among African men. The presence of tumor-specific variations in cell-free DNA (cfDNA), such as mutations, microsatellite instability, and DNA methylation, has been explored as a source of biomarkers for cancer diagnosis. In this study, we investigated the diagnostic role of cfDNA among South African PCa patients. We performed whole exome sequencing (WES) of urinary cfDNA. We identified a novel panel of 31 significantly deregulated somatic mutated genes between PCa and benign prostatic hyperplasia (BPH). Additionally, we performed whole-genome sequencing (WGS) on matching PCa and normal prostate tissue in an independent PCa cohort from South Africa. Our results suggest that the mutations are of germline origin as they were also found in the normal prostate tissue. In conclusion, our study contributes to the knowledge of cfDNA as a biomarker for diagnosing PCa in the South African population.
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Affiliation(s)
- Dada Oluwaseyi Temilola
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (D.O.T.); (M.W.); (J.P.); (S.C.)
- Integrative Biomedical Sciences Division, Faculty of Health Sciences, University of Cape Town, Cape Town 7925, South Africa
| | - Martha Wium
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (D.O.T.); (M.W.); (J.P.); (S.C.)
| | - Juliano Paccez
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (D.O.T.); (M.W.); (J.P.); (S.C.)
| | - Azola Samkele Salukazana
- Division of Urology, University of Cape Town, Groote Schuur Hospital, Cape Town 7925, South Africa; (A.S.S.); (L.K.)
| | | | - Hasan H. Otu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln, Lincoln, NE 68588, USA;
| | - Giuseppina M. Carbone
- Institute of Oncology Research (IOR), Università della Svizzera italiana, 6900 Bellinzona, Switzerland;
| | - Lisa Kaestner
- Division of Urology, University of Cape Town, Groote Schuur Hospital, Cape Town 7925, South Africa; (A.S.S.); (L.K.)
| | - Stefano Cacciatore
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (D.O.T.); (M.W.); (J.P.); (S.C.)
| | - Luiz Fernando Zerbini
- International Centre for Genetic Engineering and Biotechnology (ICGEB), Cape Town 7925, South Africa; (D.O.T.); (M.W.); (J.P.); (S.C.)
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Huang D, Deng H, Zhou J, Wang GA, Lei Q, Guo C, Peng W, Liang P, Shen C, Ying B, Li W, Li F. Mismatch-Guided Deoxyribonucleic Acid Assembly Enables Ultrasensitive and Multiplex Detection of Low-Allele-Fraction Variants in Clinical Samples. J Am Chem Soc 2023; 145:20412-20421. [PMID: 37651106 DOI: 10.1021/jacs.3c05879] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Somatic mutations are important signatures in clinical cancer treatment. However, accurate detection of rare somatic mutations with low variant-allele frequencies (VAFs) in clinical samples is challenging because of the interference caused by high concentrations of wild-type (WT) sequences. Here, we report a post amplification SNV-specific DNA assembly (PANDA) technology that eliminates the high concentration pressure caused by WT through a mismatch-guided DNA assembly and enables the ultrasensitive detection of cancer mutations with VAFs as low as 0.1%. Because it generates an assembly product that only exposes a single-stranded domain with the minimal length for signal readout and thus eliminates possible interferences from secondary structures and cross-interactions among sequences, PANDA is highly versatile and expandable for multiplex testing. With ultrahigh sensitivity, PANDA enabled the quantitative analysis of EGFR mutations in cell-free DNA of 68 clinical plasma samples and four pleuroperitoneal fluid samples, with test results highly consistent with NGS deep sequencing. Compared to digital PCR, PANDA returned fewer false negatives and ambiguous cases of clinical tests. Meanwhile, it also offers much lower upfront instrumental and operational costs. The multiplexity was demonstrated by developing a 3-plex PANDA for the simultaneous analysis of three EGFR mutations in 54 pairs of tumor and the adjacent noncancerous tissue samples collected from lung cancer patients. Because of the ultrahigh sensitivity, multiplexity, and simplicity, we anticipate that PANDA will find wide applications for analyzing clinically important rare mutations in diverse devastating diseases.
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Affiliation(s)
- Dan Huang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610061, P. R. China
| | - Hui Deng
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Juan Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Guan A Wang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610061, P. R. China
| | - Qian Lei
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Chen Guo
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610061, P. R. China
| | - Wanting Peng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610061, P. R. China
| | - Peng Liang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Chenlan Shen
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Weimin Li
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
| | - Feng Li
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610061, P. R. China
- Med+X Center for Manufacturing, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China
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Peng WW, Liu Y, Sha HH, Wen SD, Fang Y, Zhou GR. Relationship between plasma circulating cell-free DNA concentration and treatment outcomes including prognosis in patients with advanced non-small cell lung cancer. BMC Pulm Med 2023; 23:348. [PMID: 37710221 PMCID: PMC10503004 DOI: 10.1186/s12890-023-02586-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Accepted: 07/27/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Some research found that elevated plasma cell-free DNA (cfDNA) concentrations and poor prognosis are associated in non-small cell lung cancer (NSCLC). However, more studies need to be carried out to verify this conclusion. Therefore, this study investigated the relationship between cfDNA concentration and treatment outcomes including prognosis in patients with advanced NSCLC. METHODS We retrospectively collected medical records and cfDNA data from 160 patients with advanced NSCLC. Progression-free survival (PFS) were calculated using the Kaplan-Meier method and were compared between groups using the log rank test. Cox regression analysis was used for estimating the independent predictors of PFS. And we used logistic regression to evaluate the relationship between baseline biomarkers and efficacy. In our study, BT1 cfDNA, BT2 cfDNA, and BT3 cfDNA were defined as cfDNA concentration before the first treatment (baseline cfDNA concentration), cfDNA concentration before the second treatment, and cfDNA concentration before the third treatment, respectively. RESULTS Patients with low cfDNA (BT1 cfDNA < 15 (ng/mL)) were reported a significantly prolonged median progression-free survival (mPFS) compared with patients with patients with high cfDNA (BT1 cfDNA ≥ 15(ng/mL)) (mPFS: 14.6 vs. 8.3 months, P = 0.002), as well as patients with neutrophil/lymphocyte ratio (NLR)<2.98 (mPFS: 13.1 vs. 7.9 months, P = 0.023). In addition, Cox proportional hazards regression analysis identified independent indicators associated with PFS including BT1 cfDNA ≥ 15 (ng/mL), NLR ≥ 2.98 and extrapulmonary metastasis. The best cut-off value for BT3 cfDNA for predicting disease progression is 41.46 (ng/mL) (Area Under the Curve (AUC): 0.652, 95%CI: 0.516-0.788), achieving 90.7% sensitivity and 37.5% specificity for the prediction of disease progression. BT3 cfDNA (OR = 6.08, 95% CI: 1.94-19.57, P = 0.002) was an independent factor for disease progression in patients with advanced NSCLC. CONCLUSIONS BT1 cfDNA may be a biomarker to assess the prognosis of advanced NSCLC. Patients with advanced NSCLC with lower cfDNA and NLR before treatment had a better prognosis. Increased BT3 cfDNA concentration was an independent factor of disease progression in advanced NSCLC patients. These findings may assist in identifying high-risk patients and guiding treatment strategies.
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Affiliation(s)
- Wei-Wei Peng
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing, 210009, Jiangsu, China
| | - Ying Liu
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing, 210009, Jiangsu, China
| | - Huan-Huan Sha
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing, 210009, Jiangsu, China
| | - Shao-Di Wen
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing, 210009, Jiangsu, China
| | - Ying Fang
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing, 210009, Jiangsu, China.
| | - Guo-Ren Zhou
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, The Affiliated Cancer Hospital of Nanjing Medical University, Baiziting 42, Nanjing, 210009, Jiangsu, China.
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Liu DD, Muliaditan D, Viswanathan R, Cui X, Cheow LF. Melt-Encoded-Tags for Expanded Optical Readout in Digital PCR (METEOR-dPCR) Enables Highly Multiplexed Quantitative Gene Panel Profiling. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301630. [PMID: 37485651 PMCID: PMC10520687 DOI: 10.1002/advs.202301630] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/27/2023] [Indexed: 07/25/2023]
Abstract
Digital PCR (dPCR) is an important tool for precise nucleic acid quantification in clinical setting, but the limited multiplexing capability restricts its applications for quantitative gene panel profiling. Here, this work describes melt-encoded-tags for expanded optical readout in digital PCR (METEOR-dPCR), a simple two-step assay that enables simultaneous quantification of a large panel of arbitrary genes in a dPCR platform. Target genes are quantitatively converted into DNA tags with unique melting temperatures through a ligation approach. These tags are then counted and distinguished by their melt-curve profiles on a dPCR platform. A multiplexing capacity of M^N, where M is the number of resolvable melting temperature and N is the number of fluorescence channel, can be achieved. This work validates METEOR-dPCR with simultaneous DNA copy number profiling of 60 targets using dPCR in cancer cells, and demonstrates its sensitivity for estimating tumor fraction in mixed tumor and normal DNA samples. The rapid, quantitative, and highly multiplexed METEOR-dPCR assay will have wide appeal for many clinical applications.
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Affiliation(s)
- Dong Dong Liu
- Institute for Health Innovation and TechnologyNational University of SingaporeSingapore117599Singapore
| | - Daniel Muliaditan
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
- Genome institute of SingaporeAgency for ScienceTechnology and ResearchSingapore138672Singapore
| | - Ramya Viswanathan
- Institute for Health Innovation and TechnologyNational University of SingaporeSingapore117599Singapore
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
| | - Xu Cui
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
| | - Lih Feng Cheow
- Institute for Health Innovation and TechnologyNational University of SingaporeSingapore117599Singapore
- Department of Biomedical EngineeringFaculty of EngineeringNational University of SingaporeSingapore117583Singapore
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Bian Y, Gao Y, Lu C, Tian B, Xin L, Lin H, Zhang Y, Zhang X, Zhou S, Wan K, Zhou J, Li Z, Chen H, Wang L. Genome-wide methylation profiling identified methylated KCNA3 and OTOP2 as promising diagnostic markers for esophageal squamous cell carcinoma. Chin Med J (Engl) 2023:00029330-990000000-00789. [PMID: 37650127 DOI: 10.1097/cm9.0000000000002832] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Indexed: 09/01/2023] Open
Abstract
BACKGROUND Early detection of esophageal squamous cell carcinoma (ESCC) can considerably improve the prognosis of patients. Aberrant cell-free DNA (cfDNA) methylation signatures are a promising tool for detecting ESCC. However, available markers based on cell-free DNA methylation are still inadequate. This study aimed to identify ESCC-specific cfDNA methylation markers and evaluate the diagnostic performance in the early detection of ESCC. METHODS We performed whole-genome bisulfite sequencing (WGBS) for 24 ESCC tissues and their normal adjacent tissues. Based on the WGBS data, we identified 21,469,837 eligible CpG sites (CpGs). By integrating several methylation datasets, we identified several promising ESCC-specific cell-free DNA methylation markers. Finally, we developed a dual-marker panel based on methylated KCNA3 and OTOP2, and then, we evaluated its performance in our training and validation cohorts. RESULTS The ESCC diagnostic model constructed based on KCNA3 and OTOP2 had an AUC of 0.91 [95% CI: 0.85-0.95], and an optimal sensitivity and specificity of 84.91% and 94.32%, respectively, in the training cohort. In the independent validation cohort, the AUC was 0.88 [95% CI: 0.83-0.92], along with an optimal sensitivity of 81.5% and specificity of 92.9%. The model sensitivity for stage I-II ESCC was 78.4%, which was slightly lower than the sensitivity of the model (85.7%) for stage III-IV ESCC. CONCLUSIONS The dual-target panel based on cfDNA showed excellent performance for detecting ESCC and might be an alternative strategy for screening ESCC.
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Affiliation(s)
- Yan Bian
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Ye Gao
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Chaojing Lu
- Department of Thoracic Surgery, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Bo Tian
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Lei Xin
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Han Lin
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Yanhui Zhang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Xun Zhang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Siwei Zhou
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Kangkang Wan
- Wuhan Ammunition Life-tech Co., Ltd., Wuhan, Hubei430000, China
| | - Jun Zhou
- Wuhan Ammunition Life-tech Co., Ltd., Wuhan, Hubei430000, China
| | - Zhaoshen Li
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Hezhong Chen
- Department of Thoracic Surgery, Changhai Hospital, Naval Medical University, Shanghai200433, China
| | - Luowei Wang
- Department of Gastroenterology, Changhai Hospital, Naval Medical University, Shanghai200433, China
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Heussner RT, Whalen RM, Anderson A, Theison H, Baik J, Gibbs S, Wong MH, Chang YH. Quantitative image analysis pipeline for detecting circulating hybrid cells in immunofluorescence images with human-level accuracy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.24.554733. [PMID: 37662330 PMCID: PMC10473764 DOI: 10.1101/2023.08.24.554733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Circulating hybrid cells (CHCs) are a newly discovered, tumor-derived cell population identified in the peripheral blood of cancer patients and are thought to contribute to tumor metastasis. However, identifying CHCs by immunofluorescence (IF) imaging of patient peripheral blood mononuclear cells (PBMCs) is a time-consuming and subjective process that currently relies on manual annotation by laboratory technicians. Additionally, while IF is relatively easy to apply to tissue sections, its application on PBMC smears presents challenges due to the presence of biological and technical artifacts. To address these challenges, we present a robust image analysis pipeline to automate the detection and analyses of CHCs in IF images. The pipeline incorporates quality control to optimize specimen preparation protocols and remove unwanted artifacts, leverages a β-variational autoencoder (VAE) to learn meaningful latent representations of single-cell images and employs a support vector machine (SVM) classifier to achieve human-level CHC detection. We created a rigorously labeled IF CHC dataset including 9 patients and 2 disease sites with the assistance of 10 annotators to evaluate the pipeline. We examined annotator variation and bias in CHC detection and then provided guidelines to optimize the accuracy of CHC annotation. We found that all annotators agreed on CHC identification for only 65% of the cells in the dataset and had a tendency to underestimate CHC counts for regions of interest (ROI) containing relatively large amounts of cells (>50,000) when using conventional enumeration methods. On the other hand, our proposed approach is unbiased to ROI size. The SVM classifier trained on the β-VAE encodings achieved an F1 score of 0.80, matching the average performance of annotators. Our pipeline enables researchers to explore the role of CHCs in cancer progression and assess their potential as a clinical biomarker for metastasis. Further, we demonstrate that the pipeline can identify discrete cellular phenotypes among PBMCs, highlighting its utility beyond CHCs.
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Affiliation(s)
- Robert T. Heussner
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97201, USA
| | - Riley M. Whalen
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Ashley Anderson
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Heather Theison
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
| | - Joseph Baik
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97201, USA
| | - Summer Gibbs
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
| | - Melissa H. Wong
- Department of Cell, Developmental and Cancer Biology, Oregon Health & Science University, Portland, OR 97201, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
| | - Young Hwan Chang
- Department of Biomedical Engineering, Oregon Health & Science University, Portland, OR 97201, USA
- Knight Cancer Institute, Oregon Health & Science University, Portland, OR 97201, USA
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Sala A, Cameron JM, Brennan PM, Crosbie EJ, Curran T, Gray E, Martin-Hirsch P, Palmer DS, Rehman IU, Rattray NJW, Baker MJ. Global serum profiling: an opportunity for earlier cancer detection. J Exp Clin Cancer Res 2023; 42:207. [PMID: 37580713 PMCID: PMC10426107 DOI: 10.1186/s13046-023-02786-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 07/30/2023] [Indexed: 08/16/2023] Open
Abstract
The advances in cancer research achieved in the last 50 years have been remarkable and have provided a deeper knowledge of this disease in many of its conceptual and biochemical aspects. From viewing a tumor as a 'simple' aggregate of mutant cells and focusing on detecting key cell changes leading to the tumorigenesis, the understanding of cancer has broadened to consider it as a complex organ interacting with its close and far surroundings through tumor and non-tumor cells, metabolic mechanisms, and immune processes. Metabolism and the immune system have been linked to tumorigenesis and malignancy progression along with cancer-specific genetic mutations. However, most technologies developed to overcome the barriers to earlier detection are focused solely on genetic information. The concept of cancer as a complex organ has led to research on other analytical techniques, with the quest of finding a more sensitive and cost-effective comprehensive approach. Furthermore, artificial intelligence has gained broader consensus in the oncology community as a powerful tool with the potential to revolutionize cancer diagnosis for physicians. We herein explore the relevance of the concept of cancer as a complex organ interacting with the bodily surroundings, and focus on promising emerging technologies seeking to diagnose cancer earlier, such as liquid biopsies. We highlight the importance of a comprehensive approach to encompass all the tumor and non-tumor derived information salient to earlier cancer detection.
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Affiliation(s)
| | | | - Paul M Brennan
- Translational Neurosurgery, Department of Clinical Neurosciences, Royal Infirmary of Edinburgh, Edinburgh, EH16 4SB, UK
| | - Emma J Crosbie
- Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, M13 9PL, UK
- Division of Gynecology, St Mary's Hospital, Manchester University NHS Foundation Trust, Manchester, M13 9WL, UK
| | - Tom Curran
- Children's Mercy Research Institute, Children's Mercy Kansas City, Kansas City, MO, 64108, USA
| | - Ewan Gray
- Independent Health Economics Consultant, Edinburgh, UK
| | - Pierre Martin-Hirsch
- Gynecological Oncology, Clinical Research Facility, Lancashire Teaching Hospitals, Preston, PR2 9HT, UK
| | - David S Palmer
- Dxcover Limited, Glasgow, G1 1XW, UK
- Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, Glasgow, G1 1XL, UK
| | - Ihtesham U Rehman
- School of Medicine, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
| | - Nicholas J W Rattray
- Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), University of Strathclyde, Glasgow, G4 0RE, UK
| | - Matthew J Baker
- Dxcover Limited, Glasgow, G1 1XW, UK.
- Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, Glasgow, G1 1XL, UK.
- School of Medicine, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK.
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Chen Y, Zhang S, Lu J, Li D, Wu H, Zhang L, Li X, Gao X, Xu Y, Zeng Z, Zeng L, Ding X, Li X, Ding S. DNA-Guided Extracellular-Vesicle Metallization with High Catalytic Activity for Accurate Diagnosis of Pulmonary Nodules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2208142. [PMID: 37066711 DOI: 10.1002/smll.202208142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 03/19/2023] [Indexed: 06/19/2023]
Abstract
Sensitive and specific analysis of extracellular vesicles (EVs) offers a promising minimally invasive way to identify malignant pulmonary nodules from benign lesions. However, accurate analysis of EVs is subject to free target proteins in blood samples, which compromises the clinical diagnosis value of EVs. Here a DNA-guided extracellular-vesicle metallization (DEVM) strategy is described for ultrasensitive and specific analysis of EV protein biomarkers and classification of pulmonary nodules. The facile DEVM process mainly includes the incorporation of DNA labeled with cholesterol and thiol groups into EV membranes and subsequent deposition of Au3+ and Pt4+ to allow the DNA-functionalized EVs to be encapsulated with AuPt nanoshells. It is found that the synthesized AuPt-metallized EVs possess extrinsic peroxidase-like activity. Utilizing the feature of the catalytic metal nanoshells just growth on the EV membranes, the DEVM method enables multiparametric recognition of target proteins and EV membranes and can produce an amplified colorimetric signal, avoiding the interference of free proteins. By profiling four surface proteins of EVs from 48 patients with pulmonary nodules, the highest area under the receiver operating characteristic curve (0.9983) is obtained. Therefore, this work provides a feasible EVs analysis tool for accurate pulmonary nodules management.
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Affiliation(s)
- Yirong Chen
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Songzhi Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Jun Lu
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Dandan Li
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Haiping Wu
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Lu Zhang
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xinyu Li
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Xin Gao
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Yuan Xu
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Zijie Zeng
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Li Zeng
- Department of Laboratory Medicine, Chongqing Traditional Chinese Medicine Hospital, Chongqing, Chongqing, 400016, China
| | - Xiaojuan Ding
- Department of Laboratory Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - Xinmin Li
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Shijia Ding
- Key Laboratory of Clinical Laboratory Diagnostics (Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing, 400016, China
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Xue R, Yang L, Yang M, Xue F, Li L, Liu M, Ren Y, Qi Y, Zhao J. Circulating cell-free DNA sequencing for early detection of lung cancer. Expert Rev Mol Diagn 2023; 23:589-606. [PMID: 37318381 DOI: 10.1080/14737159.2023.2224504] [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: 02/28/2023] [Accepted: 06/08/2023] [Indexed: 06/16/2023]
Abstract
INTRODUCTION Lung cancer is a leading cause of death in patients with cancer. Early diagnosis is crucial to improve the prognosis of patients with lung cancer. Plasma circulating cell-free DNA (cfDNA) contains comprehensive genetic and epigenetic information from tissues throughout the body, suggesting that early detection of lung cancer can be done non-invasively, conveniently, and cost-effectively using high-sensitivity techniques such as sequencing. AREAS COVERED In this review, we summarize the latest technological innovations, coupled with next-generation sequencing (NGS), regarding genomic alterations, methylation, and fragmentomic features of cfDNA for the early detection of lung cancer, as well as their clinical advances. Additionally, we discuss the suitability of study designs for diagnostic accuracy evaluation for different target populations and clinical questions. EXPERT OPINION Currently, cfDNA-based early screening and diagnosis of lung cancer faces many challenges, such as unsatisfactory performance, lack of quality control standards, and poor repeatability. However, the progress of several large prospective studies employing epigenetic features has shown promising predictive performance, which has inspired cfDNA sequencing for future clinical applications. Furthermore, the development of multi-omics markers for lung cancer, including genome-wide methylation and fragmentomics, is expected to play an increasingly important role in the future.
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Affiliation(s)
- Ruyue Xue
- Internet Medical and System Applications of National Engineering Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Lu Yang
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, Jiangsu, China
- Nanjing Simcere Medical Laboratory Science Co, Ltd, Nanjing, Jiangsu, China
| | - Meijia Yang
- Internet Medical and System Applications of National Engineering Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Fangfang Xue
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, Jiangsu, China
- Nanjing Simcere Medical Laboratory Science Co, Ltd, Nanjing, Jiangsu, China
| | - Lifeng Li
- Internet Medical and System Applications of National Engineering Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Manjiao Liu
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, Jiangsu, China
- Nanjing Simcere Medical Laboratory Science Co, Ltd, Nanjing, Jiangsu, China
| | - Yong Ren
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, Jiangsu, China
- Nanjing Simcere Medical Laboratory Science Co, Ltd, Nanjing, Jiangsu, China
| | - Yu Qi
- Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jie Zhao
- Internet Medical and System Applications of National Engineering Laboratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Raei N, Safaralizadeh R, Latifi-Navid S. Clinical application of circulating tumor DNA in metastatic cancers. Expert Rev Mol Diagn 2023; 23:1209-1220. [PMID: 37797209 DOI: 10.1080/14737159.2023.2268008] [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: 04/07/2023] [Accepted: 10/04/2023] [Indexed: 10/07/2023]
Abstract
INTRODUCTION Advances in genomics have facilitated the application of cell-free DNA (cfDNA) and circulating tumor DNA (ctDNA) in phase II and phase III clinical trials. The various mutations of cfDNA/ctDNA have been correlated with clinical features. Advances in next-generation sequencing (NGS) and digital droplet PCR have paved the way for identifying cfDNA/ctDNA mutations. AREAS COVERED Herein, the biology of ctDNA and its function in clinical application in metastasis, which may lead to improved clinical management of metastatic cancer patients, are comprehensively reviewed. EXPERT OPINION Metastatic cancer ctDNA shows the greatest frequency of mutations in TP53, HER-2, KRAS, and EGFR genes (alteration frequency of > 50%). Therefore, identifying key mutations frequently present in metastatic cancers can help identify patients with pre-malignant tumors before cancer progression. Studying ctDNA can help determine the prognosis and select appropriate treatments for affected patients. Nevertheless, the obstacles to detecting and analyzing ctDNA should be addressed before translation into routine practice. Also, more clinical trials should be conducted to study the significance of ctDNA in commonly diagnosed malignancies. Given the recent advances in personalized anti-neoplastic treatments, further studies are needed to detect a panel of ctDNA and patient-specific ctDNA for various cancers.
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Affiliation(s)
- Negin Raei
- Digestive Disease Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Reza Safaralizadeh
- Department of Biology, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Saeid Latifi-Navid
- Department of Biology, Faculty of Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
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Xin L, Yue Y, Zihan R, Youbin C, Tianyu L, Rui W. Clinical application of liquid biopsy based on circulating tumor DNA in non-small cell lung cancer. Front Physiol 2023; 14:1200124. [PMID: 37351260 PMCID: PMC10282751 DOI: 10.3389/fphys.2023.1200124] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 05/30/2023] [Indexed: 06/24/2023] Open
Abstract
Lung cancer is a widely occurring and deadly malignancy, with high prevalence rates in China and across the globe. Specifically, non-small cell lung cancer (NSCLC) represents about 85% of all lung cancer cases. The 5-year disease-free survival rate after surgery for stage IB-IIIB NSCLC patients (disease-free survival, DFS) has notably declined from 73% to 13%. Early detection of abnormal cancer molecules and subsequent personalized treatment plans are the most effective ways to address this problem. Liquid biopsy, surprisingly, enables safe, accurate, non-invasive, and dynamic tracking of disease progression. Among the various modalities, circulating tumor DNA (ctDNA) is the most commonly used liquid biopsy modality. ctDNA serves as a credible "liquid biopsy" diagnostic tool that, to a certain extent, overcomes tumor heterogeneity and harbors genetic mutations in malignancies, thereby providing early information on tumor genetic alterations. Despite considerable academic interest in the clinical significance of ctDNA, consensus on its utility remains lacking. In this review, we assess the role of ctDNA testing in the diagnosis and management of NSCLC as a reference for clinical intervention in this disease. Lastly, we examine future directions to optimize ctDNA for personalized therapy.
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Affiliation(s)
| | | | | | | | - Lu Tianyu
- *Correspondence: Wang Rui, ; Lu Tianyu,
| | - Wang Rui
- *Correspondence: Wang Rui, ; Lu Tianyu,
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Salfer B, Havo D, Kuppinger S, Wong DTW, Li F, Zhang L. Evaluating Pre-Analytical Variables for Saliva Cell-Free DNA Liquid Biopsy. Diagnostics (Basel) 2023; 13:diagnostics13101665. [PMID: 37238150 DOI: 10.3390/diagnostics13101665] [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: 04/11/2023] [Revised: 05/03/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
Liquid biopsy utilizing cell-free DNA (cfDNA) has become an emergent field of study for cancer screening and monitoring. While blood-based liquid biopsy has been investigated extensively, there are advantages to using other body fluids. Using saliva is noninvasive, repeatable, and it may be enriched with cfDNA from certain cancer types. However, the lack of standardization in the pre-analytical phase of saliva-based testing is a concern. In this study, we evaluated pre-analytical variables that impact cfDNA stability in saliva specimens. Using saliva from healthy individuals, we tested different collection devices and preservatives and their effects on saliva cfDNA recovery and stability. Novosanis's UAS preservative helped stabilize cfDNA at room temperature for up to one week. Our study provides useful information for further improvements in saliva collection devices and preservatives.
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Affiliation(s)
- Blake Salfer
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
| | - Daisy Havo
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
| | - Skyllar Kuppinger
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
| | - David T W Wong
- School of Dentistry, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
| | - Feng Li
- School of Dentistry, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
| | - Liying Zhang
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA
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Zhu Z, Hu E, Shen H, Tan J, Zeng S. The functional and clinical roles of liquid biopsy in patient-derived models. J Hematol Oncol 2023; 16:36. [PMID: 37031172 PMCID: PMC10082989 DOI: 10.1186/s13045-023-01433-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 03/28/2023] [Indexed: 04/10/2023] Open
Abstract
The liquid biopsy includes the detection of circulating tumor cells (CTCs) and CTC clusters in blood, as well as the detection of, cell-free DNA (cfDNA)/circulating tumor DNA (ctDNA) and extracellular vesicles (EVs) in the patient's body fluid. Liquid biopsy has important roles in translational research. But its clinical utility is still under investigation. Newly emerged patient-derived xenograft (PDX) and CTC-derived xenograft (CDX) faithfully recapitulate the genetic and morphological features of the donor patients' tumor and patient-derived organoid (PDO) can mostly mimic tumor growth, tumor microenvironment and its response to drugs. In this review, we describe how the development of these patient-derived models has assisted the studies of CTCs and CTC clusters in terms of tumor biological behavior exploration, genomic analysis, and drug testing, with the help of the latest technology. We then summarize the studies of EVs and cfDNA/ctDNA in PDX and PDO models in early cancer diagnosis, tumor burden monitoring, drug test and response monitoring, and molecular profiling. The challenges faced and future perspectives of research related to liquid biopsy using patient-derived models are also discussed.
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Affiliation(s)
- Ziqing Zhu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Erya Hu
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Hong Shen
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China
| | - Jun Tan
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
| | - Shan Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
- Key Laboratory for Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, People's Republic of China.
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