In vivo antitumor activity demonstrated with squamous carcinoma reactive monoclonal antibody-Vinca immunoconjugates

David A. Johnson, John L. Zimmermann, Bennet C. Laguzza, John N. Eble

Research output: Contribution to journalArticle

6 Scopus citations


An immunoconjugate (PF1/D-DAVLBHYD), made with the squamous carcinoma reactive monoclonal antibody PF1/D and a derivative of vinblastine, DAVLBHYD, was shown to suppress established T222 human tumor nude mouse xenografts using a multidose protocol. Treatments of xenograft-bearing mice with free drug, free antibody, or a mixture of the two, were unsuccessful at achieving suppression without associated toxicity, using otherwise identical protocols. A Vinca conjugate with a related squamous carcinoma reactive monoclonal antibody, PF1/B, was shown to have similar tumor suppressive activity. In a dual immunoconjugate therapy protocol, PF1/D-DAVLBHYD and PF1/B-DAVLBHYD had additive antitumor effects which were consistent with their complementary tumor reactivity.

Original languageEnglish (US)
Pages (from-to)241-245
Number of pages5
JournalCancer Immunology Immunotherapy
Issue number3
StatePublished - Oct 1 1988


ASJC Scopus subject areas

  • Immunology and Allergy
  • Immunology
  • Oncology
  • Cancer Research

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