J 2021

Higher-order connections between stereotyped subsets: implications for improved patient classification in CLL

AGATHANGELIDIS, A., A. CHATZIDIMITRIOU, K. GEMENETZI, V. GIUDICELLI, M. KARYPIDOU et. al.

Základní údaje

Originální název

Higher-order connections between stereotyped subsets: implications for improved patient classification in CLL

Autoři

AGATHANGELIDIS, A., A. CHATZIDIMITRIOU, K. GEMENETZI, V. GIUDICELLI, M. KARYPIDOU, Karla PLEVOVÁ (203 Česká republika, domácí), Z. DAVIS, X.J. YAN, S. JEROMIN, C. SCHNEIDER, L.B. PEDERSEN, R.C. TSCHUMPER, L.A. SUTTON, P. BALIAKAS, L. SCARFO, E.J. VAN GASTEL, M. ARMAND, E. TAUSCH, B. BIDERMAN, C. BAER, D. BAGNARA, A. NAVARRO, A.L. DE SEPTENVILLE, V. GUIDO, G. MITTERBAUER-HOHENDANNER, A. DIMOVSKI, C. BRIEGHEL, S. LAWLESS, M. MEGGENDORFER, Kamila STRÁNSKÁ (203 Česká republika, domácí), M. RITGEN, M. FACCO, C. TRESOLDI, A. VISENTIN, A. PATRIARCA, M. CATHERWOOD, L. BONELLO, A. SUDARIKOV, K. VANURA, M. ROUMELIOTI, H.S. FRANCOVA, T. MOYSIADIS, S. VERONESE, K. GIANNOPOULOS, L. MANSOURI, T. KARAN-DJURASEVIC, R. SANDALTZOPOULOS, C. BODOR, F. FAIS, A. KATER, I. PANOVSKA, D. ROSSI, S. ALSHEMMARI, P. PANAGIOTIDIS, P. COSTEAS, B. ESPINET, D. ANTIC, L. FORONI, M. MONTILLO, L. TRENTIN, N. STAVROYIANNI, G. GAIDANO, P.F. DI CELLE, C. NIEMANN, E. CAMPO, A. ANAGNOSTOPOULOS, C. POTT, K. FISCHER, M. HALLEK, D. OSCIER, S. STILGENBAUER, C. HAFERLACH, D. JELINEK, N. CHIORAZZI, Šárka POSPÍŠILOVÁ (203 Česká republika, garant, domácí), M.P. LEFRANC, S. KOSSIDA, A.W. LANGERAK, Cx. BELESSI, F. DAVI, R. ROSENQUIST, P. GHIA a K. STAMATOPOULOS

Vydání

Blood, Washington DC, USA, American Society of Hematology, 2021, 0006-4971

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30205 Hematology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 25.476

Kód RIV

RIV/00216224:14740/21:00120185

Organizační jednotka

Středoevropský technologický institut

UT WoS

000646099500016

Klíčová slova anglicky

B lymphocyte receptor; immunoglobulin; immunoglobulin heavy chain; immunoglobulin heavy chain

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 22. 12. 2021 16:51, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

Chronic lymphocytic leukemia (CLL) is characterized by the existence of subsets of patients with (quasi)identical, stereotyped B-cell receptor (BcR) immunoglobulins. Patients in certain major stereotyped subsets often display remarkably consistent clinicobiological profiles, suggesting that the study of BcR immunoglobulin stereotypy in CLL has important implications for understanding disease pathophysiology and refining clinical decision-making. Nevertheless, several issues remain open, especially pertaining to the actual frequency of BcR immunoglobulin stereotypy and major subsets, as well as the existence of higher-order connections between individual subsets. To address these issues, we investigated clonotypic IGHV-IGHD-IGHJ gene rearrangements in a series of 29 856 patients with CLL, by far the largest series worldwide. We report that the stereotyped fraction of CLL peaks at 41% of the entire cohort and that all 19 previously identified major subsets retained their relative size and ranking, while 10 new ones emerged; overall, major stereotyped subsets had a cumulative frequency of 13.5%. Higher-level relationships were evident between subsets, particularly for major stereotyped subsets with unmutated IGHV genes (U-CLL), for which close relations with other subsets, termed "satellites," were identified. Satellite subsets accounted for 3% of the entire cohort. These results confirm our previous notion that major subsets can be robustly identified and are consistent in relative size, hence representing distinct disease variants amenable to compartmentalized research with the potential of overcoming the pronounced heterogeneity of CLL. Furthermore, the existence of satellite subsets reveals a novel aspect of repertoire restriction with implications for refined molecular classification of CLL.

Návaznosti

LQ1601, projekt VaV
Název: CEITEC 2020 (Akronym: CEITEC2020)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020
NV19-03-00091, projekt VaV
Název: Komplexní prognostický a prediktivní panel pro pacienty s chronickou lymfocytární leukémií: nástroj sekvenování nové generace vhodný pro klinickou praxi i studium genetického pozadí průběhu choroby
Investor: Ministerstvo zdravotnictví ČR, Comprehensive prognostic and predictive panel for chronic lymphocytic leukemia: a next-generation sequencing tool suitable for clinical practice and study of genetic architecture behind the disease progress