Preclinical evaluation of MORAb-003, a humanized monoclonal antibody antagonizing folate receptor-alpha.
Cancer Immun
; 7: 6, 2007 Mar 09.
Article
em En
| MEDLINE
| ID: mdl-17346028
ABSTRACT
The highly restricted distribution of human folate receptor-alpha (FRalpha) in normal tissues and its high expression in some tumors, along with its putative role in tumor cell transformation, make this antigen a suitable target for antigen-specific, monoclonal antibody-based immunotherapy for oncology indications. We have developed a therapeutic humanized monoclonal antibody with high affinity for FRalpha, named MORAb-003, which was derived from the optimization of the LK26 antibody using a whole cell genetic evolution platform. Here we show that MORAb-003 possesses novel, growth-inhibitory functions on cells overexpressing FRalpha. In addition, MORAb-003 elicited robust antibody-dependent cellular cytotoxicity (ADCC) and complement-dependent cytotoxicity (CDC) in vitro, and inhibited growth of human ovarian tumor xenografts in nude mice. Because of its multimodal activity in vitro and its safe toxicology profile in non-human primates, MORAb-003 development has recently been advanced to clinical trials involving ovarian cancer patients.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Neoplasias Ovarianas
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Proteínas de Transporte
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Receptores de Superfície Celular
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Imunoterapia
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Anticorpos Monoclonais
Idioma:
En
Revista:
Cancer Immun
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
Estados Unidos