MICHÁLEK, Jaroslav, Ivo KOCÁK, Vuk FAIT, Jan ŽALOUDÍK and Roman HÁJEK. Detection and long-term in vivo monitoring of individual tumor-specific T cell clones in patients with metastatic melanoma. Journal of immunology. Bethesda: American association of immunologists, 2007, vol. 2007, No 1, p. 178-189, 11 pp. ISSN 0022-1767.
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Basic information
Original name Detection and long-term in vivo monitoring of individual tumor-specific T cell clones in patients with metastatic melanoma.
Name in Czech Detekce a dlouhodobé in vivo monitorování individuálních nádorově specifických klonů T lymfocytů u pacientů s metastázujícím melanomem.
Authors MICHÁLEK, Jaroslav (203 Czech Republic, guarantor), Ivo KOCÁK (203 Czech Republic), Vuk FAIT (203 Czech Republic), Jan ŽALOUDÍK (203 Czech Republic) and Roman HÁJEK (203 Czech Republic).
Edition Journal of immunology, Bethesda, American association of immunologists, 2007, 0022-1767.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30102 Immunology
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 6.068
RIV identification code RIV/00216224:14110/07:00033038
Organization unit Faculty of Medicine
UT WoS 000246896300018
Keywords in English metastatic melanoma; T cell
Tags metastatic melanoma, T cell
Tags International impact
Changed by Changed by: Ing. Gabriela Petrovičová, učo 239322. Changed: 22/6/2009 11:15.
Abstract
We investigated the presence of individual melanoma-specific T cell clones in patients with metastatic melanoma. Ten patients were examined for the presence of melanoma-reactive T cells using dendritic cells loaded with autologous tumor cells. Their specificity was tested using nonradioactive cytotoxicity test. Individual immumodominant T cell clones were identified by the clonotypic assay that combines in vitro cell culture, immunomagnetic sorting of activated IFN-gamma(+) T cells, TCR beta locus-anchored RT-PCR, and clonotypic quantitative PCR. All patients had detectable melanoma-reactive T cells in vitro. Expanded melanoma-reactive T cells demonstrated specific cytotoxic effect against autologous tumor cells in vitro. Three patients experienced objective responses, and their clinical responses were closely associated with the in vivo expansion and long-term persistence of individual CD8(+) T cell clones with frequencies of 10(-6) to 10(-3) of all circulating CD8+ T cells. Five patients with progressive disease experienced no or temporary presence of circulating melanoma-reactive T cell clones. Thus, circulating immunodominant CD8(+) T cell clones closely correlate with clinical outcome inpatients with metastatic melanoma.
Abstract (in Czech)
Detekce a dlouhodobé in vivo monitorování individuálních nádorově specifických klonů T lymfocytů u pacientů s metastázujícím melanomem.
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