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Proc Natl Acad Sci U S A. 2006 Sep 26;103(39):14453-8. Epub 2006 Sep 19.

Recombinant vaccinia/fowlpox NY-ESO-1 vaccines induce both humoral and cellular NY-ESO-1-specific immune responses in cancer patients.

Author information

1
Ludwig Institute Clinical Trial Center, Medizinische Klinik II, Hämatologie-Onkologie, Krankenhaus Nordwest, Steinbacher Hohl 2-26, 60488 Frankfurt, Germany. elke.jaeger@licr.org

Abstract

NY-ESO-1 is a cancer/testis antigen expressed in a range of human malignancies, and a number of vaccine strategies targeting NY-ESO-1 are being developed. In the present study, the safety and immunogenicity of recombinant vaccinia-NY-ESO-1 and recombinant fowlpox-NY-ESO-1 were analyzed in a series of 36 patients with a range of different tumor types. Each construct was first tested individually at two different dose levels and then in a prime-boost setting with recombinant vaccinia-NY-ESO-1 followed by recombinant fowlpox-NY-ESO-1. The vaccines were well tolerated either individually or together. NY-ESO-1-specific antibody responses and/or specific CD8 and CD4 T cell responses directed against a broad range of NY-ESO-1 epitopes were induced by a course of at least four vaccinations at monthly intervals in a high proportion of patients. CD8 T cell clones derived from five vaccinated patients were shown to lyse NY-ESO-1-expressing melanoma target cells. In several patients with melanoma, there was a strong impression that the natural course of the disease was favorably influenced by vaccination.

PMID:
16984998
PMCID:
PMC1570182
DOI:
10.1073/pnas.0606512103
[Indexed for MEDLINE]
Free PMC Article
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