Journal of International Oncology ›› 2022, Vol. 49 ›› Issue (9): 555-559.doi: 10.3760/cma.j.cn371439-20220520-00108

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Application of circulating cell-free nucleic acid in clinical diagnosis and treatment of colorectal cancer

Gao Yizhao1, Liu Yang2, Liu Qiulong1, Xing Jinliang1,2()   

  1. 1College of Medical Technology, Shaanxi University of Chinese Medicine, Xianyang 712000, China
    2College of Basic Medicine, Air Force Medical University, Xi'an 710032, China.
  • Received:2022-05-20 Revised:2022-06-13 Online:2022-09-08 Published:2022-10-21
  • Contact: Xing Jinliang E-mail:xingjinliang@163.com
  • Supported by:
    National Natural Science Foundation of China(81830070)

Abstract:

The incidence of colorectal cancer (CRC) is increasing year by year, and early diagnosis is of great significance to improve the prognosis of patients. Circulating cell-free nucleic acid (cfNA) has the advantages of non-invasive, real-time monitoring, and overcoming tumor heterogeneity. The characteristics of cfNA content, mutation, methylation and fragmentation patterns provid important reference value for early diagnosis, curative effect monitoring, prognosis judgment and medication guidance of CRC. However, the practical application of cfNA in the clinical diagnosis and treatment of CRC still needs to solve the problems of unstandardized detection technology, high detection cost, screening of markers with high diagnostic efficacy, and construction of multi-combination models. These challenges will provide new directions for future cfNA research.

Key words: Colorectal neoplasms, Clinical laboratory techniques, Therapeutics, Cell-free nucleic acids