Gain of the short arm of chromosome 2 (2p gain) has a significant role in drug‐resistant chronic lymphocytic leukemia - Université Clermont Auvergne Accéder directement au contenu
Article Dans Une Revue Cancer Medicine Année : 2019

Gain of the short arm of chromosome 2 (2p gain) has a significant role in drug‐resistant chronic lymphocytic leukemia

Résumé

The different types of drug resistance encountered in chronic lymphocytic leukemia (CLL) cannot be fully accounted for by the 17p deletion (and/or TP53 mutation), a complex karyotype (CK), immunoglobulin heavy-chain variable region genes (IGHV) status and gene mutations. Hence, we sought to assess the associations between recurrent genomic abnormalities in CLL and the disease's development and outcome. To this end, we analyzed 64 samples from patients with CLL and gain of the short arm of chromosome 2 (2p+), which is frequent in late-stage and relapsed/refractory CLL. We found that fludarabine/cyclophosphamide/rituximab (a common first-line treatment in CLL) is not effective in removing the 2p+ clone - even in samples lacking a CK, the 17p deletion or unmutated IGHV. Our results suggest strongly that patients with CLL should be screened for 2p+ (using karyotyping and fluorescence in situ hybridization) before a treatment option is chosen. Longer follow-up is now required to evaluate bendamustine-rituximab, ibrutinib, and idelalisib-rituximab treatments.
Fichier principal
Vignette du fichier
Kostopoulou_et_al-2019-Cancer_Medicine.pdf (523.28 Ko) Télécharger le fichier
Kostopoulou et al Figures.pdf (459.2 Ko) Télécharger le fichier
Supplementary Information Table 1 Kostopoulou 2019.pdf (60.92 Ko) Télécharger le fichier
Supplementary Information Table 2 Kostopoulou 2019.xlsx (20.82 Ko) Télécharger le fichier
Origine : Publication financée par une institution

Dates et versions

hal-02273234 , version 1 (28-08-2019)

Identifiants

Citer

Fotini Kostopoulou, Clementine Gabillaud, Elise Chapiro, Béatrice Grange, Julie Tran, et al.. Gain of the short arm of chromosome 2 (2p gain) has a significant role in drug‐resistant chronic lymphocytic leukemia. Cancer Medicine, 2019, 8 (6), pp.3131-3141. ⟨10.1002/cam4.2123⟩. ⟨hal-02273234⟩
272 Consultations
84 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More