2016
Different spectra of recurrent gene mutations in subsets of chronic lymphocytic leukemia harboring stereotyped B-cell receptors
SUTTON, Lesley-Ann; Emma YOUNG; Panagiotis BALIAKAS; Anastasia HADZIDIMITRIOU; Theodoros MOYSIADIS et al.Základní údaje
Originální název
Different spectra of recurrent gene mutations in subsets of chronic lymphocytic leukemia harboring stereotyped B-cell receptors
Autoři
SUTTON, Lesley-Ann; Emma YOUNG; Panagiotis BALIAKAS; Anastasia HADZIDIMITRIOU; Theodoros MOYSIADIS; Karla PLEVOVÁ; Davide ROSSI; Jana KMÍNKOVÁ; Evangelia STALIKA; Lone Bredo PEDERSEN; Jitka MALČÍKOVÁ ORCID; Andreas AGATHANGELIDIS; Zadie DAVIS; Larry MANSOURI; Lydia SCARFO; Myriam BOUDJOGHRA; Alba NAVARRO; Alice F. MUGGEN; Xiao-Jie YAN; Florence NGUYEN-KHAC; Marta LARRAYOZ; Panagiotis PANAGIOTIDIS; Nicholas CHIORAZZI; Carsten Utoft NIEMANN; Chrysoula BELESSI; Elias CAMPO; Jonathan C. STREFFORD; Anton W. LANGERAK; David OSCIER; Gianluca GAIDANO; Šárka POSPÍŠILOVÁ; Frederic DAVI; Paolo GHIA; Kostas STAMATOPOULOS a Richard ROSENQUIST
Vydání
Haematologica, PAVIA, FERRATA STORTI FOUNDATION, 2016, 0390-6078
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30200 3.2 Clinical medicine
Stát vydavatele
Itálie
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 7.702
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/16:00090992
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
ANTIGEN RECEPTORS; GENOMIC ABERRATIONS; EXPRESSION PROFILES; SF3B1; SELECTION; TP53; CLL; SUBGROUPS; INDICATE; PATTERNS
Změněno: 6. 12. 2016 13:27, Mgr. Eva Špillingová
Anotace
V originále
We report on markedly different frequencies of genetic lesions within subsets of chronic lymphocytic leukemia patients carrying mutated or unmutated stereotyped B-cell receptor immunoglobulins in the largest cohort (n=565) studied for this purpose. By combining data on recurrent gene mutations (BIRC3, MYD88, NOTCH1, SF3B1 and TP53) and cytogenetic aberrations, we reveal a subset-biased acquisition of gene mutations. More specifically, the frequency of NOTCH1 mutations was found to be enriched in subsets expressing unmutated immunoglobulin genes, i.e. #1, #6, #8 and #59 (22-34%), often in association with trisomy 12, and was significantly different (P<0.001) to the frequency observed in subset #2 (4%, aggressive disease, variable somatic hypermutation status) and subset #4 (1%, indolent disease, mutated immunoglobulin genes). Interestingly, subsets harboring a high frequency of NOTCH1 mutations were found to carry few (if any) SF3B1 mutations. This starkly contrasts with subsets #2 and #3 where, despite their immunogenetic differences, SF3B1 mutations occurred in 45% and 46% of cases, respectively. In addition, mutations within TP53, whilst enriched in subset #1 (16%), were rare in subsets# 2 and #8 (both 2%), despite all being clinically aggressive. All subsets were negative for MYD88 mutations, whereas BIRC3 mutations were infrequent. Collectively, this striking bias and skewed distribution of mutations and cytogenetic aberrations within specific chronic lymphocytic leukemia subsets implies that the mechanisms underlying clinical aggressiveness are not uniform, but rather support the existence of distinct genetic pathways of clonal evolution governed by a particular stereotyped B-cell receptor selecting a certain molecular lesion(s).
Návaznosti
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