2016
Molecular Cytogenetic Analysis of Chromosome 8 Aberrations in Patients With Multiple Myeloma Examined in 2 Different Stages, at Diagnosis and at Progression/Relapse
MLYNARCIKOVA, Miroslava, Jana BALCARKOVA, Pavla MICKOVA, Vlastimil SCUDLA, Tomas PIKA et. al.Základní údaje
Originální název
Molecular Cytogenetic Analysis of Chromosome 8 Aberrations in Patients With Multiple Myeloma Examined in 2 Different Stages, at Diagnosis and at Progression/Relapse
Autoři
MLYNARCIKOVA, Miroslava (203 Česká republika), Jana BALCARKOVA (203 Česká republika), Pavla MICKOVA (203 Česká republika), Vlastimil SCUDLA (203 Česká republika), Tomas PIKA (203 Česká republika), Jaroslav BACOVSKY (203 Česká republika), Jiri MINARIK (203 Česká republika), Eva JANOUŠOVÁ (203 Česká republika, garant, domácí) a Marie JAROSOVA (203 Česká republika)
Vydání
Clinical Lymphoma, Myeloma and Leukemia, Dallas, CIG Media Group, 2016, 2152-2650
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 2.494
Kód RIV
RIV/00216224:14110/16:00090553
Organizační jednotka
Lékařská fakulta
UT WoS
000378029200011
Klíčová slova anglicky
FICTION; MYC; TRAIL-R1; TRAIL-R2; genetic changes
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 11. 11. 2016 10:26, Ing. Mgr. Věra Pospíšilíková
Anotace
V originále
This retrospective study of 62 patients with multiple myeloma examined at 2 different phases (diagnosis and progression/relapse), revealed chromosome 8 aberrations in 24 (38.7%) patients at diagnosis and in 29 (46.8%) patients at progression/relapse. We did not confirm a significant increase of chromosome 8 aberrations at progression/relapse; however, we confirmed the heterogeneity of the aberrations and their poor prognostic impact on overall survival. Background: The genome of multiple myeloma (MM) clonal plasma cells is characterized by genetic changes of prognostic importance. Disease progression is accompanied by a number of secondary chromosomal aberrations including chromosome 8. We focused on the detection of chromosome 8 aberrations in patients with MM who were examined at 2 different phases: diagnosis and progression/relapse. Patients and Methods: A total of 62 patients with MM were examined at the time of diagnosis and at relapse/progression. The median age was 64 years (range, 39-78 years); the study included 29 males and 33 females. We analyzed bone marrow samples for detecting aberrations on chromosome 8 by the fluorescence immunophenotyping and interphase cytogenetics as a tool for the investigation of neoplasms (FICTION) and fluorescence in situ hybridization methods with specific probes. Results: Chromosome 8 aberrations were detected in 24 (38.7%) patients at diagnosis and in 29 (46.8%) patients at progression/relapse. Only 5 (8%) patients developed additional chromosome 8 changes at progression/relapse. The aberrations were heterogeneous, involving numerical and structural changes of the MYC gene. Aberrations of the short arm of chromosome 8, involving the genes TRAIL-R1/-R2, were less frequent (4 of 62 patients, 6.4%). All aberrations of chromosome 8 were accompanied with additional changes and with an advanced clinical phase of the disease. This finding significantly influenced the overall survival of patients. Conclusion: In the current study, chromosome 8 aberrations were highly heterogeneous, were presented at diagnosis in patients with advanced clinical stage, and were associated with worse overall survival. We have not confirmed the increase of frequency aberration of chromosome 8 in disease progression. The findings demonstrate the importance of fluorescence in situ hybridization examination of chromosome 8 in newly diagnosed patients with MM.