2017
The spectrum of somatic mutations in monoclonal gammopathy of undetermined significance indicates a less complex genomic landscape than that in multiple myeloma
MIKULÁŠOVÁ, Aneta, Christopher P. WARDELL, Alexander MURISON, Eileen M. BOYLE, Graham H. JACKSON et. al.Základní údaje
Originální název
The spectrum of somatic mutations in monoclonal gammopathy of undetermined significance indicates a less complex genomic landscape than that in multiple myeloma
Autoři
MIKULÁŠOVÁ, Aneta (203 Česká republika, domácí), Christopher P. WARDELL (840 Spojené státy), Alexander MURISON (826 Velká Británie a Severní Irsko), Eileen M. BOYLE (826 Velká Británie a Severní Irsko), Graham H. JACKSON (826 Velká Británie a Severní Irsko), Jan SMETANA (203 Česká republika, domácí), Zuzana KUFOVA (203 Česká republika), Luděk POUR (203 Česká republika), Viera SANDECKÁ (703 Slovensko), Martina ALMÁŠI (203 Česká republika), Pavla VŠIANSKÁ (203 Česká republika), Evzen GREGORA (203 Česká republika), Petr KUGLÍK (203 Česká republika, domácí), Roman HÁJEK (203 Česká republika), Faith E. DAVIES (840 Spojené státy), Gareth J. MORGAN (840 Spojené státy) a Brian A. WALKER (840 Spojené státy)
Vydání
Haematologica, Pavia, Ferrata Storti Foundation, 2017, 0390-6078
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30205 Hematology
Stát vydavatele
Itálie
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 9.090
Kód RIV
RIV/00216224:14310/17:00095684
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000408743300030
Klíčová slova anglicky
Monoclonal gammopathy
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 4. 2018 13:54, doc. RNDr. Petr Kuglík, CSc.
Anotace
V originále
Monoclonal gammopathy of undetermined significance is a premalignant precursor of multiple myeloma with a 1% risk of progression per year. Although targeted analyses have shown the presence of specific genetic abnormalities such as IGH translocations, RB1 deletion, 1q gain, hyperdiploidy or RAS gene mutations, little is known about the molecular mechanism of malignant transformation. We performed whole exome sequencing together with comparative genomic hybridization plus single nucleotide polymorphism array analysis in 33 flow-cytometry-separated abnormal plasma cell samples from patients with monoclonal gammopathy of undetermined significance to describe somatic gene mutations and chromosome changes at the genome-wide level. Non-synonymous mutations and copy-number alterations were present in 97.0% and in 60.6% of cases, respectively. Importantly, the number of somatic mutations was significantly lower in monoclonal gammopathy of undetermined significance than in myeloma (P<10-4) and we identified six genes that were significantly mutated in myeloma (KRAS, NRAS, DIS3, HIST1H1E, EGR1 and LTB) within the monoclonal gammopathy of undetermined significance dataset. We also found a positive correlation with increasing chromosome changes and somatic gene mutations. IGH translocations, comprising t(4;14), t(11;14), t(14;16) and t(14;20), were present in 27.3% of cases and in a similar frequency to myeloma, consistent with the primary lesion hypothesis. MYC translocations and TP53 deletions or mutations were not detected in samples from patients with monoclonal gammopathy of undetermined significance, indicating that they may be drivers of progression to myeloma. Data from this study show that monoclonal gammopathy of undetermined significance is genetically similar to myeloma, however overall genetic abnormalities are present at significantly lower levels in monoclonal gammopathy of undetermined significant than in myeloma.
Návaznosti
NT13492, projekt VaV |
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