Transimmunization for cutaneous T cell lymphoma: A phase I study

Autor: Earl J. Glusac, Inger Christensen, Kacie R Thompson, Carole L. Berger, Michael Girardi, Richard L. Edelson, Lynn D. Wilson
Rok vydání: 2006
Předmět:
Zdroj: Leukemia & Lymphoma. 47:1495-1503
ISSN: 1029-2403
1042-8194
DOI: 10.1080/10428190600581419
Popis: Extracorporeal photochemotherapy (ECP) is a widely used immunotherapy for cutaneous T cell lymphoma (CTCL). It involves four sequential steps: conversion of blood monocytes into dendritic antigen presenting cells (DC) by repetitive adherence and disadherence to plastic surface; reinfusion of the new DC; presumed in vivo loading of the new DC with apoptotic malignant leukocytes; and expansion of the anti-tumor CD8 T cell pool. To assess the safety of a methodology designed to increase ex vivo contact between the apoptotic malignant cells and new DC prior to reinfusion, a single-center, open-label Phase I clinical study of a revised procedure--referred to as "Transimmunization"--was conducted in CTCL patients. Twenty-seven subjects were treated monthly for 3 to 5 months, alone or in combination with electron beam therapy. For those receiving Transimmunization alone, there was an overall diminution in infiltrative lesions in eleven (55%) of twenty patients. In the twelve leukemic CTCL patients, there was a significant mean reduction of 50.1% in the circulating malignant cells, as determined with family-specific anti-T cell receptor Vbeta monoclonal antibodies (P
Databáze: OpenAIRE
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