Siglec receptors as new immune checkpoints in cancer

Mol Aspects Med. 2023 Apr:90:101112. doi: 10.1016/j.mam.2022.101112. Epub 2022 Aug 7.

Abstract

Cancer immunotherapy in the form of immune checkpoint inhibitors and cellular therapies has improved the treatment and prognosis of many patients. Nevertheless, most cancers are still resistant to currently approved cancer immunotherapies. New approaches and rational combinations are needed to overcome these resistances. There is emerging evidence that Siglec receptors could be regarded as new immune checkpoints and targets for cancer immunotherapy. In this review, we summarize the experimental evidence supporting Siglec receptors as new immune checkpoints in cancer and discuss their mechanisms of action, as well as current efforts to target Siglec receptors and their interactions with sialoglycan Siglec-ligands.

Keywords: Cancer immunotherapy; Immune checkpoint inhibitor; Innate immunity; Monoclonal antibodies; Sialic acid; Sialidase; T cells.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Humans
  • Immune Checkpoint Proteins
  • Immunotherapy
  • Neoplasms* / therapy
  • Sialic Acid Binding Immunoglobulin-like Lectins* / genetics

Substances

  • Sialic Acid Binding Immunoglobulin-like Lectins
  • Immune Checkpoint Proteins