期刊
CELLULAR ONCOLOGY
卷 46, 期 3, 页码 533-544出版社
SPRINGER
DOI: 10.1007/s13402-023-00774-0
关键词
Circulating tumour cells; Biological properties; Isolation; Clinical applications
Circulating tumor cells (CTCs) are shed from solid tumors and circulate in the bloodstream, playing a significant role in early cancer diagnosis and treatment monitoring. However, their rarity and heterogeneity present challenges for isolation methods. Combined physical and biological enrichment methods may provide a solution to capture CTCs with higher specificity and sensitivity. Utilizing CTCs in combination with other liquid biopsy components could offer more clinically useful information and the circadian rhythm of CTC release may impact patient evaluation and treatment.
BackgroundCirculating tumour cells (CTCs) are cancer cells that circulate in the bloodstream after being shed from solid tumours. They can lead to tumour recurrence and metastasis. CTCs play a significant role as biomarkers for early diagnosis, therapy response monitoring, and prognostication. However, CTCs are rare and heterogeneous, with usually only a single-digit number in one millilitre of blood. Additionally, a circadian rhythm is involved in the release of CTCs into the peripheral circulation. Due to these biological properties, higher demands are placed on the isolation of CTCs, and current capture methods struggle to enrich all CTCs present in blood. As yet, these limitations have hampered the clinical application of CTCs.ConclusionsIn this review, we focus on the biological properties and clinical applications of CTCs and current CTC enrichment and isolation methods. Combined enrichment methods based on physical and biological properties are considered instrumental for the development of highly specific and sensitive CTC capture methods. The utilization of CTCs in conjunction with other liquid biopsy components (such as ctDNA) may yield more clinically useful information and the circadian rhythmicity of CTC release may change the way to evaluate and treat patients.
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