Immunotherapy and immunoevasion of colorectal cancer

Drug Discov Today. 2023 Sep;28(9):103669. doi: 10.1016/j.drudis.2023.103669. Epub 2023 Jun 14.

Abstract

The tremendous success of immunotherapy in clinical trials has led to its establishment as a new pillar of cancer therapy. However, little clinical efficacy has been achieved in microsatellite stable colorectal cancer (MSS-CRC), which constitutes most CRC tumors. Here, we discuss the molecular and genetic heterogeneity of CRC. We review the immune escape mechanisms, and focus on the latest advances in immunotherapy as a treatment modality for CRC. By providing a better understanding of the tumor microenvironment (TME) and the molecular mechanisms underlying immunoevasion, this review offers an insight into developing therapeutic strategies that are effective for patients with various subsets of CRC.

Keywords: CTLA-4; PD-1; adoptive cell therapy; cancer vaccines; colorectal cancer; immune checkpoint inhibitor.

Publication types

  • Review

MeSH terms

  • Colorectal Neoplasms* / drug therapy
  • Colorectal Neoplasms* / genetics
  • Humans
  • Immunotherapy*
  • Treatment Outcome
  • Tumor Microenvironment