Therapeutic strategies targeting folate receptor α for ovarian cancer

Front Immunol. 2023 Aug 30:14:1254532. doi: 10.3389/fimmu.2023.1254532. eCollection 2023.

Abstract

Epithelial ovarian cancer (EOC) is the deadliest gynecological cancer, and presents a major clinical challenge due to limited treatment options. Folate receptor alpha (FRα), encoded by the FOLR1 gene, is an attractive therapeutically target due to its prevalent and high expression in EOC cells. Recent basic and translational studies have explored several modalities, such as antibody-drug conjugate (ADC), monoclonal antibodies, small molecules, and folate-drug conjugate, to exploit FRα for EOC treatment. In this review, we summarize the function of FRα, and clinical efficacies of various FRα-based therapeutics. We highlight mirvetuximab soravtansine (MIRV), or Elahere (ImmunoGen), the first FRα-targeting ADC approved by the FDA to treat platinum-resistant ovarian cancer. We discuss potential mechanisms and management of ocular adverse events associated with MIRV administration.

Keywords: ADC; Elahere; FOLR1; MIRV; antibody-drug conjugate; folate receptor α; mirvetuximab soravtansine; ovarian cancer.

Publication types

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

MeSH terms

  • Antibodies, Monoclonal
  • Carcinoma, Ovarian Epithelial / drug therapy
  • Eye
  • Female
  • Folate Receptor 1* / genetics
  • Humans
  • Ovarian Neoplasms* / drug therapy
  • Ovarian Neoplasms* / genetics

Substances

  • Folate Receptor 1
  • Antibodies, Monoclonal
  • FOLR1 protein, human

Grants and funding

We thank the support from the National Natural Science Foundation of China (31971141 and 32271348), the Science and Technology Department of Sichuan Province (2021YJ0012 and 2022YFS0242), and Sichuan University (23H0221 and 23H0222).