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Oncotarget. 2017 Jul 27;8(49):85214-85223. doi: 10.18632/oncotarget.19620. eCollection 2017 Oct 17.

Investigation of factors affecting the efficacy of 3C23K, a human monoclonal antibody targeting MISIIR.

Oncotarget

Sarah E Gill, Qing Zhang, Gary L Keeney, William A Cliby, S John Weroha

Affiliations

  1. Department of Gynecologic Oncology, Mayo Clinic, Rochester, Minnesota, USA.
  2. Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, Minnesota, USA.
  3. Department of Medical Oncology, Mayo Clinic, Rochester, Minnesota, USA.

PMID: 29156714 PMCID: PMC5689604 DOI: 10.18632/oncotarget.19620

Abstract

MISIIR is a potential target for ovarian cancer (OC) therapy due to its tissue-specific pattern of expression. 3C23K is a novel therapeutic monoclonal anti-MISIIR antibody designed to recruit effector cells and promote cell death through ADCC (antibody dependent cell-mediated cytotoxicity). Our objective was to determine the tolerability and efficacy of 3C23K in OC patient-derived xenografts (PDX) and to identify factors affecting efficacy. Quantitative RT-PCR, immunohistochemistry (IHC), and flow cytometry were used to categorize MISIIR expression in established PDX models derived from primary OC patients. We selected two high expressing models and two low expressing models for

Keywords: 3C23K; mullerian inhibiting substance receptor; ovarian cancer; patient-derived xenograft; targeted therapy

Conflict of interest statement

CONFLICTS OF INTEREST The authors declare no competing financial interests.

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