Extrachromosomal circular DNA as a novel biomarker for the progression of colorectal cancer.

IF 6 2区医学 Q1 BIOCHEMISTRY & MOLECULAR BIOLOGY

Molecular Medicine Pub Date : 2025-04-01 DOI:10.1186/s10020-025-01164-y

Quanpeng Qiu, Yi Ding, Xiaolong Guo, Jing Han, Jiaqi Zhang, Yaping Liu, Junjun She, Yinnan Chen

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引用次数: 0

Abstract

Background: Extrachromosomal circular DNA (eccDNA) has potential in tumor diagnosis, particularly for improving diagnostic accuracy and early cancer detection; however, many challenges remain in its application to clinical practice.

Methods: We conducted a Circle-Seq analysis on clinical samples at different stages of colorectal cancer progression to examine the dynamic changes of eccDNA during the progression of colorectal cancer. We used breakpoint-specific PCR to verify candidate eccDNAs identified by Circle-Seq. The results were further validated using the AOM/DSS-induced colorectal cancer model.

Results: There was an increase in the abundance of eccDNA with the progression of colorectal cancer. The genes associated with these eccDNA molecules were primarily related to signaling pathways involved in tumor development and metastasis. Our analysis also revealed that eccDNA abundance positively correlates with gene expression, and eccDNA derived from specific genes has potential value for the early diagnosis of tumors.

Conclusions: This study revealed a connection between eccDNA and colorectal cancer progression and highlights the clinical potential of eccDNA for the early diagnosis of colorectal cancer.

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染色体外环状DNA作为结直肠癌进展的新生物标志物。

背景：染色体外环状DNA （eccDNA）在肿瘤诊断中具有潜力，特别是在提高诊断准确性和早期癌症检测方面；然而，将其应用于临床实践仍存在许多挑战。方法：对结直肠癌不同进展阶段的临床样本进行Circle-Seq分析，检测结直肠癌进展过程中eccDNA的动态变化。我们使用断点特异性PCR来验证Circle-Seq鉴定的候选eccdna。AOM/ dss诱导的结直肠癌模型进一步验证了结果。结果：随着结直肠癌的进展，ecdna的丰度增加。与这些eccDNA分子相关的基因主要与肿瘤发生和转移的信号通路有关。我们的分析还显示，eccDNA丰度与基因表达呈正相关，来自特定基因的eccDNA对肿瘤的早期诊断具有潜在价值。结论：本研究揭示了eccDNA与结直肠癌进展之间的联系，并强调了eccDNA在结直肠癌早期诊断中的临床潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Molecular Medicine 医学-生化与分子生物学

CiteScore

8.60

自引率

0.00%

发文量

137

审稿时长

1 months

期刊介绍： Molecular Medicine is an open access journal that focuses on publishing recent findings related to disease pathogenesis at the molecular or physiological level. These insights can potentially contribute to the development of specific tools for disease diagnosis, treatment, or prevention. The journal considers manuscripts that present material pertinent to the genetic, molecular, or cellular underpinnings of critical physiological or disease processes. Submissions to Molecular Medicine are expected to elucidate the broader implications of the research findings for human disease and medicine in a manner that is accessible to a wide audience.