دورية أكاديمية
Definition and Prognostic Value of Ph-like and IKZF1plus Status in Children With Down Syndrome and B-cell Precursor Acute Lymphoblastic Leukemia
| العنوان: | Definition and Prognostic Value of Ph-like and IKZF1plus Status in Children With Down Syndrome and B-cell Precursor Acute Lymphoblastic Leukemia |
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| المؤلفون: | Chiara Palmi, Silvia Bresolin, Stefanie Junk, Grazia Fazio, Daniela Silvestri, Marketa Zaliova, Athanasios Oikonomou, Katerina Scharov, Martin Stanulla, Anja Moericke, Martin Zimmermann, Martin Schrappe, Barbara Buldini, Sanil Bhatia, Arndt Borkhardt, Claudia Saitta, Marta Galbiati, Michela Bardini, Luca Lo Nigro, Valentino Conter, Maria Grazia Valsecchi, Andrea Biondi, Geertruy te Kronnie, Gunnar Cario, Giovanni Cazzaniga |
| المصدر: | HemaSphere, Vol 7, Iss 6, p e892 (2023) |
| بيانات النشر: | Wiley, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Diseases of the blood and blood-forming organs |
| مصطلحات موضوعية: | Diseases of the blood and blood-forming organs, RC633-647.5 |
| الوصف: | Children with Down syndrome have an augmented risk for B-cell acute lymphoblastic leukemia (DS-ALL), which is associated with lower survival than in non-DS-ALL. It is known that cytogenetic abnormalities common in childhood ALL are less frequent in DS-ALL, while other genetic aberrancies (ie, CRLF2 overexpression and IKZF1 deletions) are increased. A possible cause for the lower survival of DS-ALL that we herewith evaluated for the first time was the incidence and prognostic value of the Philadelphia-like (Ph-like) profile and the IKZF1plus pattern. These features have been associated with poor outcome in non-DS ALL and therefore introduced in current therapeutic protocols. Forty-six out of 70 DS-ALL patients treated in Italy from 2000 to 2014 displayed Ph-like signature, mostly characterized by CRLF2 (n = 33) and IKZF1 (n = 16) alterations; only 2 cases were positive for ABL-class or PAX5-fusion genes. Moreover, in an Italian and German joint cohort of 134 DS-ALL patients, we observed 18% patients positive for IKZF1plus feature. Ph-like signature and IKZF1 deletion were associated with poor outcome (cumulative incidence of relapse: 27.7 ± 6.8% versus 13 ± 7%; P = 0.04 and 35.2 ± 8.6% versus 17 ± 3.9%; P = 0.007, respectively), which further worsens when IKZF1 deletion was co-occurring with P2RY8::CRLF2, qualifying for the IKZF1plus definition (13/15 patients had an event of relapse or treatment-related death). Notably, ex vivo drug screening revealed sensitivity of IKZF1plus blasts for drugs active against Ph-like ALL such as Birinapant and histone deacetylase inhibitors. We provided data in a large setting of a rare condition (DS-ALL) supporting that these patients, not associated with other high-risk features, need tailored therapeutic strategies. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2572-9241 00000000 |
| Relation: | http://journals.lww.com/10.1097/HS9.0000000000000892; https://doaj.org/toc/2572-9241 |
| DOI: | 10.1097/HS9.0000000000000892 |
| URL الوصول: | https://doaj.org/article/8b3553e763074371b4c8f44d90e57a09 |
| رقم الأكسشن: | edsdoj.8b3553e763074371b4c8f44d90e57a09 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 25729241 00000000 |
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| DOI: | 10.1097/HS9.0000000000000892 |