Anti-LYPD1/CD3 T-Cell-Dependent Bispecific Antibody for the Treatment of Ovarian Cancer.
Mol Cancer Ther
; 20(4): 716-725, 2021 04.
Article
en En
| MEDLINE
| ID: mdl-33536191
ABSTRACT
Ovarian cancer is a diverse class of tumors with very few effective treatment options and suboptimal response rates in early clinical studies using immunotherapies. Here we describe LY6/PLAUR domain containing 1 (LYPD1) as a novel target for therapeutic antibodies for the treatment of ovarian cancer. LYPD1 is broadly expressed in both primary and metastatic ovarian cancer with â¼70% prevalence in the serous cancer subset. Bispecific antibodies targeting CD3 on T cells and a tumor antigen on cancer cells have demonstrated significant clinical activity in hematologic cancers. We have developed an anti-LYPD1/CD3 T-cell-dependent bispecific antibody (TDB) to redirect T-cell responses to LYPD1 expressing ovarian cancer. Here we characterize the nonclinical pharmacology of anti-LYPD1/CD3 TDB and show induction of a robust polyclonal T-cell activation and target dependent killing of LYPD1 expressing ovarian cancer cells resulting in efficient in vivo antitumor responses in PBMC reconstituted immune-deficient mice and human CD3 transgenic mouse models. Anti-LYPD1/CD3 TDB is generally well tolerated at high-dose levels in mice, a pharmacologically relevant species, and showed no evidence of toxicity or damage to LYPD1 expressing tissues.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Neoplasias Ováricas
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Complejo CD3
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Anticuerpos Biespecíficos
Tipo de estudio:
Risk_factors_studies
Límite:
Animals
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Female
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Humans
Idioma:
En
Revista:
Mol Cancer Ther
Asunto de la revista:
ANTINEOPLASICOS
Año:
2021
Tipo del documento:
Article