Frontiers in Immunology (Oct 2023)

Advances in immunotyping of colorectal cancer

  • Yinhang Wu,
  • Yinhang Wu,
  • Yinhang Wu,
  • Jing Zhuang,
  • Jing Zhuang,
  • Jing Zhuang,
  • Zhanbo Qu,
  • Zhanbo Qu,
  • Zhanbo Qu,
  • Xi Yang,
  • Xi Yang,
  • Xi Yang,
  • Shuwen Han,
  • Shuwen Han,
  • Shuwen Han

DOI
https://doi.org/10.3389/fimmu.2023.1259461
Journal volume & issue
Vol. 14

Abstract

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Immunotherapy has transformed treatment for various types of malignancy. However, the benefit of immunotherapy is limited to a minority of patients with mismatch-repair-deficient (dMMR) and microsatellite instability-high (MSI-H) (dMMR-MSI-H) colorectal cancer (CRC). Understanding the complexity and heterogeneity of the tumor immune microenvironment (TIME) and identifying immune-related CRC subtypes will improve antitumor immunotherapy. Here, we review the current status of immunotherapy and typing schemes for CRC. Immune subtypes have been identified based on TIME and prognostic gene signatures that can both partially explain clinical responses to immune checkpoint inhibitors and the prognosis of patients with CRC. Identifying immune subtypes will improve understanding of complex CRC tumor heterogeneity and refine current immunotherapeutic strategies.

Keywords