Noninvasive sampling of an individual's body fluids is an easy means to capture circulating cell-free DNA (cfDNA). These small fragments of DNA carry information on the contributing cell's genome, epigenome, and nuclease content. Analysis of cfDNA for the assessment of genetic risk has already revolutionized clinical practice, and a compendium of increasingly higher-resolution approaches based on epigenetic and fragmentomic cfDNA signatures continues to expand. Profiling cfDNA has unlocked a wealth of molecular information that can be translated to the clinic. This review covers the biological characteristics of cfDNA, recent advances in liquid biopsy and the clinical utility of cfDNA.
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http://dx.doi.org/10.20517/evcna.2022.21 | DOI Listing |
Gut
January 2025
Barts Cancer Institute, Queen Mary University of London, London, UK
Background: The risk of developing advanced neoplasia (AN; colorectal cancer and/or high-grade dysplasia) in ulcerative colitis (UC) patients with a low-grade dysplasia (LGD) lesion is variable and difficult to predict. This is a major challenge for effective clinical management.
Objective: We aimed to provide accurate AN risk stratification in UC patients with LGD.
Biochim Biophys Acta Mol Cell Res
January 2025
Key Laboratory of Laboratory Medicine, Ministry of Education, Wenzhou Key Laboratory of Cancer Pathogenesis and Translation, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China. Electronic address:
The imbalance of microglial homeostasis is highly associated with age-related neurological diseases, where cytosolic endogenous DNA is also likely to be found. As the main medium for storing biological information, endogenous DNA could be localized to cellular compartments normally free of DNA when cells are stimulated. However, the intracellular trafficking of endogenous DNA remains unidentified.
View Article and Find Full Text PDFDiscov Oncol
January 2025
Medical Oncology Unit, Fondazione IRCCS San Gerardo dei Tintori, Monza, Italy.
Non-small cell lung cancer (NSCLC) remains a dire disease being the first cause of cancer death among both genders. Early-stage NSCLC often has better treatment outcomes despite it being a highly heterogeneous disease. So far, the neo-adjuvant chemotherapy strategies have led to a small benefit with an improvement of 5% in overall survival as an absolute benefit.
View Article and Find Full Text PDFClin Cancer Res
January 2025
Mayo Clinic, Rochester, MN, United States.
LINE-1 retrotransposons, comprising 17% of the genome, drive cancer instability through hypomethylation. The DIAMOND assay, targeting LINE-1 hypomethylation with bisulfite sequencing of cell free DNA, achieved AUCs of 88% to 100% across six cancer types, surpassing mutation-based diagnostics and suggesting utility in early cancer detection and management.
View Article and Find Full Text PDFAnal Chem
January 2025
Rural Health Research Institute, Charles Sturt University, Orange, New South Wales 2800, Australia.
The detection and analysis of circulating cell-free nucleic acid (ccfNA) biomolecules are redefining a new era of molecular targeted cancer therapies. However, the clinical translation of electrochemical ccfNA biosensing remains hindered by unresolved challenges in analytical specificity and sensitivity. In this Perspective, we present a novel electrochemical framework for improving ccfNA biosensor performance by optimizing the critical electrode-biomolecules-electrolyte interfaces.
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