2. Academic Validation
  3. The Anti-ROR1 Monoclonal Antibody Zilovertamab Inhibits the Proliferation of Ovarian and Endometrial Cancer Cells

The Anti-ROR1 Monoclonal Antibody Zilovertamab Inhibits the Proliferation of Ovarian and Endometrial Cancer Cells

  • Pharmaceutics. 2022 Apr 11;14(4):837. doi: 10.3390/pharmaceutics14040837.
Dongli Liu 1,  Gunnar F Kaufmann 2,  James B Breitmeyer 2,  Kristie-Ann Dickson 3,  Deborah J Marsh 3 4,  Caroline E Ford 1
Affiliations

Affiliations

  • 1 Gynaecological Cancer Research Group, School of Clinical Medicine, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW 2052, Australia.
  • 2 Oncternal Therapeutics, Inc., San Diego, CA 92130, USA.
  • 3 Translational Oncology Group, School of Life Sciences, Faculty of Science, University of Technology Sydney, Ultimo, NSW 2007, Australia.
  • 4 Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Camperdown, NSW 2006, Australia.
PMID: 35456672 DOI: 10.3390/pharmaceutics14040837
Abstract

The non-canonical Wnt signalling receptor ROR1 is aberrantly expressed in numerous cancers, including ovarian and endometrial Cancer. We previously reported that silencing ROR1 could inhibit the proliferation and metastatic potential of ovarian and endometrial Cancer cells in vitro. Zilovertamab is an ROR1-targeting humanised monoclonal antibody, with demonstrated safety and efficacy in clinical trials of several ROR1-related malignancies. The aim of this study was to investigate the potential of zilovertamab alone, or in combination with commonly utilised gynaecological Cancer therapies (cisplatin, paclitaxel and the PARP inhibitor-Olaparib) on high-grade serous ovarian Cancer (HGSOC), including models of platinum resistance and homologous recombination deficiency (CaOV3, CaOV3CisR, PEO1 and PEO4) and endometrial Cancer (EC) cell lines (Ishikawa and KLE). The effect of zilovertamab (at 25 µg/mL or 50 µg/mL) +/- agents was investigated using the IncuCyte S3 Live Cell imaging system. Zilovertamab alone inhibited the proliferation of HGSOC and EC cells in vitro, including in models of platinum resistance and homologous recombination deficiency. In general, the addition of commonly used chemotherapies to a fixed dose of zilovertamab did not enhance the observed anti-proliferative activity. This study supports the potential of zilovertamab, or other ROR1-targeting therapies, for treating women with HGSOC and EC.

Keywords

ROR1; cirmtuzumab; endometrial cancer; ovarian cancer; zilovertamab.

Figures
Products
  • Cat. No.
    Product Name
    Description
    Target
    Research Area
  • HY-P99201
    98.20%, ROR1 Inhibitor
    ROR