Allogeneic dendritic cells pulsed with tumor lysates or apoptotic bodies as immunotherapy for patients with early-stage B-cell chronic lymphocytic leukemia

Recently, immunotherapies with allogeneic dendritic cells (DCs) pulsed with tumor antigens to generate specific T-cell responses have been tested in clinical trials for patients with solid tumors. This is the first report on a clinical vaccination study with DCs for patients with B-cell chronic lymp...

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Veröffentlicht in:Leukemia 2005-09, Vol.19 (9), p.1621-1627
Hauptverfasser: HUS, I, ROLINSKI, J, TABARKIEWICZ, J, WOJAS, K, BOJARSKA-JUNAK, A, GREINER, J, GIANNOPOULOS, K, DMOSZYNSKA, A, SCHMITT, M
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container_end_page 1627
container_issue 9
container_start_page 1621
container_title Leukemia
container_volume 19
creator HUS, I
ROLINSKI, J
TABARKIEWICZ, J
WOJAS, K
BOJARSKA-JUNAK, A
GREINER, J
GIANNOPOULOS, K
DMOSZYNSKA, A
SCHMITT, M
description Recently, immunotherapies with allogeneic dendritic cells (DCs) pulsed with tumor antigens to generate specific T-cell responses have been tested in clinical trials for patients with solid tumors. This is the first report on a clinical vaccination study with DCs for patients with B-cell chronic lymphocytic leukemia (B-CLL). The potential of allogeneic DCs pulsed ex vivo with tumor cell lysates or apoptotic bodies to stimulate antitumor immunity in patients with B-CLL in early stages was evaluated. Monocyte-derived DCs were obtained from unrelated healthy donors. Nine patients (clinical stage 0 and 1 according to Rai) were vaccinated five times with a mean number of 32 x 10(6) stimulated DCs administered intradermally once every 2-3 weeks. No signs of autoimmunity were detected, and only mild local skin reactions were noted. During the treatment period, we observed a decrease of peripheral blood leukocytes and CD19+/CD5+ leukemic cells. In one patient, a significant increase of specific cytotoxic T lymphocytes against RHAMM/CD168, a recently characterized leukemia-associated antigen, could be detected after DC vaccination. Taken together, the study demonstrated that DC vaccination in CLL patients is feasible and safe. Immunological and to some extent hematological responses could be noted, justifying further investigation on this immuno-therapeutical approach.
doi_str_mv 10.1038/sj.leu.2403860
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source MEDLINE; Nature; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection
subjects Aged
Antigen (leukemia-associated)
Antigen (tumor-associated)
Antigens
Apoptosis
Apoptosis - immunology
Autoimmunity
Biological and medical sciences
Cancer Vaccines - therapeutic use
CD19 antigen
CD5 antigen
Chronic lymphocytic leukemia
Clinical trials
Cytotoxicity
Dendritic cells
Dendritic Cells - immunology
Extracellular Matrix Proteins - immunology
Female
Hematologic and hematopoietic diseases
Humans
Hyaluronan Receptors - immunology
Immunology
Immunotherapy
Immunotherapy - methods
Leukemia
Leukemia, Lymphocytic, Chronic, B-Cell - immunology
Leukemia, Lymphocytic, Chronic, B-Cell - therapy
Leukemias. Malignant lymphomas. Malignant reticulosis. Myelofibrosis
Leukocytes
Lymphatic leukemia
Lymphocytes
Lymphocytes B
Lymphocytes T
Lysates
Male
Medical sciences
Middle Aged
Monocytes
Neoplasm Proteins - immunology
Patients
Peripheral blood
Reverse Transcriptase Polymerase Chain Reaction
Solid tumors
Th1 Cells - immunology
Th2 Cells - immunology
Treatment Outcome
Tumors
Vaccination
Vaccines
title Allogeneic dendritic cells pulsed with tumor lysates or apoptotic bodies as immunotherapy for patients with early-stage B-cell chronic lymphocytic leukemia
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