Vol 49, No 1 (2011)
Original paper
Submitted: 2011-12-19
Published online: 2011-04-19
Peptide vaccination induces profound changes in the immune system in patients with B-cell chronic lymphocytic leukemia
Krzysztof Giannopoulos, Paulina Własiuk, Anna Dmoszyńska, Jacek Roliński, Michael Schmitt
DOI: 10.5603/FHC.2011.0023
·
Folia Histochem Cytobiol 2011;49(1):161-167.
Vol 49, No 1 (2011)
ORIGINAL PAPERS
Submitted: 2011-12-19
Published online: 2011-04-19
Abstract
Although the immune status of chronic lymphocytic leukemia (CLL) patients is mostly characterized
by immunosuppression, there is an accumulation of in vivo (graft-versus-leukemia effect) and in vitro (spontaneous
remissions after infections) data that indicates that CLL might be effectively targeted by T-cell based immunotherapy.
Recently, we characterized receptor for hyaluronic acid mediated motility (RHAMM) as a preferential
target for immunotherapy of CLL. We also completed a RHAMM-derived peptide vaccination phase I/II
clinical trial in CLL. Here, we present a detailed immunological analysis of six CLL patients vaccinated with
HLA-A2 restricted RHAMM-derived epitope R3 (ILSLELMKL). Beside effective induction of R3-specific cytotoxic
T-cells, peptide vaccination caused profound changes in different T-cell subsets as well as cytokines. We
present longitudinal analyses of Th17, CD8+CD103+, CD8+CD137+ and IL-17 producing CD8+ T cells (CD8+IL-
-17+) as well as important cytokines involved in regulation of immune response such as TGF-β, IL-10, IL-2 and
TNF throughout the peptide vaccination period. (Folia Histochemica et Cytobiologica 2011, Vol. 49, No. 1, 161–167)
Abstract
Although the immune status of chronic lymphocytic leukemia (CLL) patients is mostly characterized
by immunosuppression, there is an accumulation of in vivo (graft-versus-leukemia effect) and in vitro (spontaneous
remissions after infections) data that indicates that CLL might be effectively targeted by T-cell based immunotherapy.
Recently, we characterized receptor for hyaluronic acid mediated motility (RHAMM) as a preferential
target for immunotherapy of CLL. We also completed a RHAMM-derived peptide vaccination phase I/II
clinical trial in CLL. Here, we present a detailed immunological analysis of six CLL patients vaccinated with
HLA-A2 restricted RHAMM-derived epitope R3 (ILSLELMKL). Beside effective induction of R3-specific cytotoxic
T-cells, peptide vaccination caused profound changes in different T-cell subsets as well as cytokines. We
present longitudinal analyses of Th17, CD8+CD103+, CD8+CD137+ and IL-17 producing CD8+ T cells (CD8+IL-
-17+) as well as important cytokines involved in regulation of immune response such as TGF-β, IL-10, IL-2 and
TNF throughout the peptide vaccination period. (Folia Histochemica et Cytobiologica 2011, Vol. 49, No. 1, 161–167)
Keywords
B-cell chronic lymphocytic leukemia (CLL); receptor for hyaluronic acid mediated motility (RHAMM); peptide immunotherapy
Title
Peptide vaccination induces profound changes in the immune system in patients with B-cell chronic lymphocytic leukemia
Journal
Folia Histochemica et Cytobiologica
Issue
Vol 49, No 1 (2011)
Article type
Original paper
Pages
161-167
Published online
2011-04-19
Page views
1985
Article views/downloads
2216
DOI
10.5603/FHC.2011.0023
Bibliographic record
Folia Histochem Cytobiol 2011;49(1):161-167.
Keywords
B-cell chronic lymphocytic leukemia (CLL)
receptor for hyaluronic acid mediated motility (RHAMM)
peptide immunotherapy
Authors
Krzysztof Giannopoulos
Paulina Własiuk
Anna Dmoszyńska
Jacek Roliński
Michael Schmitt