PMID- 35712467 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220716 IS - 2234-943X (Print) IS - 2234-943X (Electronic) IS - 2234-943X (Linking) VI - 12 DP - 2022 TI - Childhood Acute B-Lineage Lymphoblastic Leukemia With CDKN2A/B Deletion Is a Distinct Entity With Adverse Genetic Features and Poor Clinical Outcomes. PG - 878098 LID - 10.3389/fonc.2022.878098 [doi] LID - 878098 AB - To further emphasize the clinical-genetic features and prognosis of CDKN2A/B deletions in childhood acute lymphoblastic leukemia (ALL), we retrospectively analyzed 819 consecutive B-ALL patients treated with the Chinese Children's Cancer Group ALL-2015 (CCCG-ALL-2015) protocol, and fluorescence in situ hybridization (FISH) analysis on CDKN2A/B deletion was available for 599 patients. The prevalence of CDKN2A/B gene deletions was 20.2% (121/599) of B-ALL. CDKN2A/B deletions were significantly associated with older age, higher leukocyte counts, a higher percentage of hepatosplenomegaly, and a higher frequency of BCR-ABL (p < 0.05). Those patients achieved similar minimal residual disease (MRD) clearance and complete remission compared to patients without CDKN2A/B deletion. The CDKN2A/B deletions were correlated with inferior outcomes, including a 3-year event-free survival (EFS) rate (69.8 +/- 4.6 vs. 89.2 +/- 1.6%, p = 0.000) and a 3-year overall survival (OS) rate (89.4% +/- 2.9% vs. 94.7% +/- 1.1%, p = 0.037). In multivariable analysis, CDKN2A/B deletion was still an independent prognostic factor for EFS in total cohorts (p < 0.05). We also detected a multiplicative interaction between CDKN2A/B deletions and TP53 deletion on dismal prognosis (p-interaction < 0.05). In conclusion, CDKN2A/B deletion is associated with distinct characteristics and serves as a poor prognostic factor in pediatric ALL, especially in TP53 deletion carriers. CI - Copyright (c) 2022 Feng, Guo, Yang, Zou, Zhang, Chen, Zhang, Zhu and Chen. FAU - Feng, Jing AU - Feng J AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Guo, Ye AU - Guo Y AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Yang, Wenyu AU - Yang W AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Zou, Yao AU - Zou Y AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Zhang, Li AU - Zhang L AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Chen, Yumei AU - Chen Y AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Zhang, Yingchi AU - Zhang Y AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Zhu, Xiaofan AU - Zhu X AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. FAU - Chen, Xiaojuan AU - Chen X AD - State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China. LA - eng PT - Journal Article DEP - 20220524 PL - Switzerland TA - Front Oncol JT - Frontiers in oncology JID - 101568867 PMC - PMC9195293 OTO - NOTNLM OT - CDKN2A/B OT - TP53 OT - fluorescence in situ hybridization OT - pediatric acute lymphoblastic leukemia OT - prognosis COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/06/18 06:00 MHDA- 2022/06/18 06:01 PMCR- 2022/01/01 CRDT- 2022/06/17 02:42 PHST- 2022/02/17 00:00 [received] PHST- 2022/04/14 00:00 [accepted] PHST- 2022/06/17 02:42 [entrez] PHST- 2022/06/18 06:00 [pubmed] PHST- 2022/06/18 06:01 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fonc.2022.878098 [doi] PST - epublish SO - Front Oncol. 2022 May 24;12:878098. doi: 10.3389/fonc.2022.878098. eCollection 2022.