J 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

Štítky

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
Název: Úloha genetických abnormalit ve vývoji a progresi prekancerózy monoklonální gamapatie nejasného významu