PŘÍPRAVA MYELOM-SPECIFICKÝCH T LYMFOCYTŮ AKTIVOVANÝCH DENDRITICKÝMI BUŇKAMI NALOŽENÝMI NONAPEPTIDY ODVOZENÝMI OD MUCINOVÉHO PROTEINU MUC1 A KATALYTICKÉ PODJEDNOTKY TELOMERÁZY hTERT

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Title in English THE PREPARATION OF MYELOMA-SPECIFIC T CELLS ACTIVATED WITH DENDRITIC CELLS LOADED WITH NONAPEPTIDES DERIVED FROM MUCIN PROTEIN MUC1 AND CATALYTIC SUBUNIT OF TELOMERASE hTERT
Authors

OČADLÍKOVÁ Darina KOVÁŘOVÁ Lucie HÁJEK Roman MICHÁLEK Jaroslav

Year of publication 2008
Type Article in Periodical
Magazine / Source Klinická onkologie
MU Faculty or unit

Faculty of Medicine

Citation
Field Oncology and hematology
Keywords Multiple myeloma; immunotherapy; interferon gamma; hTERT; MUC1
Description Backgrounds: Multiple myeloma is an incurable hematological disease. High-dose chemotherapy including autologous stem cell transplantation is recently considered a standard therapy for myeloma. Unfortunately, a relapse of the disease is inevitable. Therefore, new approaches such as immunotherapy have been considered recently. A specific activation of cytotoxic T cells can be reached using dendritic cells loaded with tumor-specific antigens. The HLA-A2-specific nonapeptides as hTERT derived from catalytic subunit of telomerase and MUC1 derived from mucin protein can be used. Design and subjects: Activation, identification, separation and expansion of myeloma-specific T cells from healthy HLA-A2 blood donors were tested in an in vitro study using hTERT and MUC1 nonapeptides as tumor-specific antigens. Methods and results: T cells and dendritic cells were obtained from peripheral blood. T cells were repeatedly stimulated with hTERT and MUC1 nonapeptide-loaded dendritic cells. Activated myeloma-specific T cells produced interferon gamma and were evaluated by flow cytometry. The activated T cells were immunomagnetically separated and in vitro expanded to the number usable in clinical trials. Conclusions: This study demonstrates feasibility of a specific activation, identification, separation and expansion of tumor-specific T cells that can be used in myeloma therapy.
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