2007
Prognostic impact of unfavorable cytogenetic abnormalities in multiple myeloma patients treated by bortezomib (velcade)
NĚMEC, Pavel, Henrieta GREŠLIKOVÁ, Romana ZAORALOVÁ, Hana FILKOVÁ, Petr KUGLÍK et. al.Základní údaje
Originální název
Prognostic impact of unfavorable cytogenetic abnormalities in multiple myeloma patients treated by bortezomib (velcade)
Název česky
Prognostický vliv cytogenetických abnormalit u pacientů s mnohočetným myelomem léčených bortezomibem (Velcade)
Autoři
NĚMEC, Pavel (203 Česká republika), Henrieta GREŠLIKOVÁ (703 Slovensko), Romana ZAORALOVÁ (203 Česká republika), Hana FILKOVÁ (203 Česká republika), Petr KUGLÍK (203 Česká republika), Alexandra OLTOVÁ (203 Česká republika), Luděk POUR (203 Česká republika), Zdeněk ADAM (203 Česká republika), Andrea KŘIVANOVÁ (203 Česká republika), Marta KREJČÍ (203 Česká republika) a Roman HÁJEK (203 Česká republika, garant)
Vydání
Volume 92, no. 6 supplement. Pavia, Italy, Hematologica/The Hematology Journal, od s. 165-165, 1 s. 2007
Nakladatel
Ferrata-Storti Foundation
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
Genetika a molekulární biologie
Stát vydavatele
Itálie
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 5.516
Kód RIV
RIV/00216224:14110/07:00022796
Organizační jednotka
Lékařská fakulta
ISSN
UT WoS
000247425800331
Klíčová slova anglicky
multiple myeloma; 1q21 amplifiaction; Velcade; fluorescence in situ hybridisation; DNA probe
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 19. 3. 2009 11:06, Mgr. Pavel Němec, Ph.D.
V originále
i) Introduction: The aim of this study is to investigate if Bortezomib (Velcade) is able to antagonize the impact of negative cytogenetic prognostic markers. We have focused on four chromosomal aberrations known as negative prognostic factors in multiple myeloma (MM) treated by conventional or myeloablastive treatment: deletion of RB gene (13q14), deletion of p53 (17p13), amplification of CKS1B gene (1q21) and translocation t(4;14). ii) Material and Methods: We have identified monotypic plasma cells and studied chromosomal aberrations by cytoplasmic light-chain fluorescence in situ hybridization (cIg-FISH) technique. Up-to-date group of 18 patients (pts.) has following characteristic: 67% of men, median age 62,5 years (44,4-77,9). 50% (9 pts.) were in stage IIIA, 28% (5 pts.) in IIA and 22% (4 pts.) in IA. 61% (11 pts.) were in first relapse, 22% (4 pts.) were in second relapse. The others 17% (3 pts.) were in third relapse. Treatment with Velcade based regimens was continued for up to 8 cycles in 66 % pts. (12/18). ii) Preliminary results: Cytogenetic findings: Deletion of RB gene was found in 8/16 (50%) pts., t(4;14) in 8/15 (53%) pts., deletion of p53 gene in 7/15 (47%) cases and amplification of CKS1B gene in 10/15 pts. (66%). Overall Response (OR) was 39% (0% CR, 11% VGPR, 28% PR). OR was not higher in pts. with cytogenetic findings for all aberration types except t(4;14): OR was 38% vs. 38% for pts. with vs. without deletion of RB gene; 63% vs. 14% for t(4;14) (p=0,240); 29% vs. 50% for deletion of p53 and 40% vs. 40% for amplification of CKS1B. Further, Velcade based therapy showed comparable TTP, DOR and OS in pts. with or without cytogenetic aberations including t(4;14). iv) Preliminary conclusions: We have found no significant difference when compared positivity vs. negativity of each cytogenetic aberration (including t(4;14)) for OR, TTP, DOR, PFS, and OS. This should have been caused by small size of our sample. It is possible that Velcade antagonizes the negative prognostic value of studied cytogenetic findings in MM. Supported by Myeloma Basic Research Centre Brno MU (LC 06027) and by grant from Ministry of Educations MSM0021622415.
Česky
Práce pojednává o významu detekce chromozomálních aberací u pacientů s mnohočetným myelomem léčených bortezomibem (Velcade).
Návaznosti
LC06027, projekt VaV |
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MSM0021622415, záměr |
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