Targeting hematologic malignancies by inhibiting E-selectin: A sweet spot for AML therapy?

Blood Rev. 2024 May:65:101184. doi: 10.1016/j.blre.2024.101184. Epub 2024 Feb 28.

Abstract

E-selectin, a cytoadhesive glycoprotein, is expressed on venular endothelial cells and mediates leukocyte localization to inflamed endothelium, the first step in inflammatory cell extravasation into tissue. Constitutive marrow endothelial E-selectin expression also supports bone marrow hematopoiesis via NF-κB-mediated signaling. Correspondingly, E-selectin interaction with E-selectin ligand (sialyl Lewisx) on acute myeloid leukemia (AML) cells leads to chemotherapy resistance in vivo. Uproleselan (GMI-1271) is a carbohydrate analog of sialyl Lewisx that blocks E-selectin binding. A Phase 2 trial of MEC chemotherapy combined with uproleselan for relapsed/refractory AML showed a median overall survival of 8.8 months and low (2%) rates of severe oral mucositis. Clinical trials seek to confirm activity in AML and mitigation of neutrophil-mediated adverse events (mucositis and diarrhea) after intensive chemotherapy. In this review we summarize E-selectin biology and the rationale for uproleselan in combination with other therapies for hematologic malignancies. We also describe uproleselan pharmacology and ongoing clinical trials.

Keywords: Acute myeloid leukemia (AML); E-selectin; Hematologic malignancies; Selectin; Uproleselan.

Publication types

  • Review

MeSH terms

  • Bone Marrow / pathology
  • E-Selectin / metabolism
  • E-Selectin / therapeutic use
  • Endothelial Cells / metabolism
  • Hematologic Neoplasms* / drug therapy
  • Humans
  • Leukemia, Myeloid, Acute* / drug therapy
  • Leukemia, Myeloid, Acute* / pathology

Substances

  • E-Selectin