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El Ashry MS, Elsayed GM, Madney Y, Arafah O, Allam RM, Rasekh EO. Duplication 1q is highly correlated with poor prognosis in high hyperdiploid pediatric B-acute lymphoblastic leukemia. Int J Lab Hematol 2020; 43:235-243. [PMID: 33073918 DOI: 10.1111/ijlh.13369] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 09/09/2020] [Accepted: 09/29/2020] [Indexed: 01/23/2023]
Abstract
BACKGROUND The role of structural abnormalities in high hyperdiploidy (HeH) has been debatable, with few studies that addressed recurrent translocations with concurrent HeH (t-HeH). We aimed at the characterization of HeH cases in pediatric B-acute lymphoblastic leukemia (B-ALL) patients with special emphasis on the structural abnormalities including t-HeH. PATIENTS AND METHODS Our study included all patients diagnosed with HeH over the period from January 2016 to April 2019 presenting to the Pediatric Oncology Department, National Cancer Institute, Cairo University. RESULTS Among 480 de novo B-ALL pediatric patients, HeH was detected in eighty (16.7%) cases with a median age of 5 years. t-HeH was identified in 17/480 (3.5%) cases: 9(1.9%) with t(12;21), 7(1.5%) with t(9;22), and 1(0.2%) with t(4;11). Duplication (1q) was the most prevalent structural abnormality in c-HeH (hyperdiploidy without recurrent translocations) (n = 12,15%). Children ≥10 years or presenting with white blood cells (WBC) ≥50 × 109 /L) had an inferior 3 year-overall survival as compared to younger children (P = .003), and to lower WBC (P = .02). Duplication (1q) was an independent adverse parameter on the disease-free survival (DFS) of c-HeH patients (P = .004). CONCLUSIONS Older age and WBC ≥ 50 × 109 /L were adverse prognostic factors. Duplication (1q) is correlated with lower DFS in c-HeH patients. t-HeH has distinct patterns of chromosomal gain.
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Affiliation(s)
- Mona S El Ashry
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Ghada M Elsayed
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Youssef Madney
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Omar Arafah
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Rasha M Allam
- Biostatistics and Cancer Epidemiology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Eman O Rasekh
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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Reismüller B, Steiner M, Pichler H, Dworzak M, Urban C, Meister B, Schmitt K, Pötschger U, König M, Mann G, Haas OA, Attarbaschi A. High hyperdiploid acute lymphoblastic leukemia (ALL)-A 25-year population-based survey of the Austrian ALL-BFM (Berlin-Frankfurt-Münster) Study Group. Pediatr Blood Cancer 2017; 64. [PMID: 27804199 DOI: 10.1002/pbc.26327] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 09/29/2016] [Accepted: 10/03/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Approximately 30% of childhood acute lymphoblastic leukemia (ALL) cases are high hyperdiploid (HD). Despite their low relative recurrence risk, this group accounts for the overall largest relapse proportion. PROCEDURE To evaluate potential risk factors in our population-based cohort of patients with HD ALL enrolled in four Austrian ALL-BFM (Berlin-Frankfurt-Münster) studies from 1986 to 2010 (n = 210), we reviewed the clinical, laboratory, and cytogenetic data of the respective cases in relation to their outcome. RESULTS The 5-year event-free (EFS) and overall survival (OS) of the entire group was 83.1 ± 2.7% and 92.0 ± 1.9%, respectively. Univariate analysis revealed that trisomy 17 was significantly associated with a better EFS and OS, whereas trisomy 10 and a modal chromosome number (MCN) > 53 chromosomes were significantly associated with a better OS. Except for the latter, findings remained valid in multivariate analysis. CONCLUSIONS In line with previous studies, our retrospective analysis shows that MCN and specific trisomies are relevant prognostic indicators in an ALL-BFM cohort of patients with HD ALL. However, considering the current dominant role of minimal residual disease monitoring for prognostic stratification in ALL, including this particular subgroup, it is unlikely that this information is compelling enough to be utilized for refined risk classification in future ALL-BFM treatment protocols.
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Affiliation(s)
- Bettina Reismüller
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Manuel Steiner
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Herbert Pichler
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Michael Dworzak
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria.,Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Christian Urban
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, Medical University of Graz, Graz, Austria
| | - Bernhard Meister
- Department of Pediatrics, University of Innsbruck, Innsbruck, Austria
| | - Klaus Schmitt
- Department of Pediatrics and Adolescent Medicine, Kepler University Hospital, Linz, Austria
| | - Ulrike Pötschger
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Margit König
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Georg Mann
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Oskar A Haas
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria.,Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Andishe Attarbaschi
- Division of Pediatric Hematology and Oncology, Department of Pediatric and Adolescent Medicine, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
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Abstract
Both B-cell and T-cell acute lymphoblastic leukemia (ALL) exhibit recurrent cytogenetic alterations, many with prognostic implications. This chapter overviews the major recurrent categories of cytogenetic abnormalities associated with ALL, with an emphasis on the detection and characterization of these cases by G-band and FISH analyses.
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Chen C, Bartenhagen C, Gombert M, Okpanyi V, Binder V, Röttgers S, Bradtke J, Teigler-Schlegel A, Harbott J, Ginzel S, Thiele R, Husemann P, Krell PF, Borkhardt A, Dugas M, Hu J, Fischer U. Next-generation-sequencing of recurrent childhood high hyperdiploid acute lymphoblastic leukemia reveals mutations typically associated with high risk patients. Leuk Res 2015; 39:990-1001. [DOI: 10.1016/j.leukres.2015.06.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 06/08/2015] [Accepted: 06/10/2015] [Indexed: 01/07/2023]
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Abstract
The most widely used approach for defining gene function is to reduce or completely disrupt its normal expression. For over a decade, RNAi has ruled the lab, offering a magic bullet to disrupt gene expression in many organisms. However, new biotechnological tools--specifically CRISPR-based technologies--have become available and are squeezing out RNAi dominance in mammalian cell studies. These seemingly competing technologies leave research investigators with the question: "Which technology should I use in my experiment?" This review offers a practical resource to compare and contrast these technologies, guiding the investigator when and where to use this fantastic array of powerful tools.
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Affiliation(s)
- Michael Boettcher
- Department of Microbiology and Immunology, UCSF Diabetes Center, Keck Center for Noncoding RNA, University of California, San Francisco, San Francisco, CA 94143, USA
| | - Michael T McManus
- Department of Microbiology and Immunology, UCSF Diabetes Center, Keck Center for Noncoding RNA, University of California, San Francisco, San Francisco, CA 94143, USA.
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Tirado CA, Shabsovich D, Yeh L, Pullarkat ST, Yang L, Kallen M, Rao N. A (1;19) translocation involving TCF3-PBX1 fusion within the context of a hyperdiploid karyotype in adult B-ALL: a case report and review of the literature. Biomark Res 2015; 3:4. [PMID: 25729575 PMCID: PMC4344763 DOI: 10.1186/s40364-015-0029-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 01/23/2015] [Accepted: 01/30/2015] [Indexed: 01/26/2023] Open
Abstract
Background The t(1;19)(q23;p13), which can result in the TCF3-PBX1 chimeric gene, is one of the most frequent translocations in B-acute lymphoblastic leukemia (B-ALL) and is observed in both adult and pediatric populations at an overall frequency of 6%. It can occur in a balanced or unbalanced form and as a sole abnormality is associated with an intermediate prognosis. Additionally, this translocation is observed in the context of hyperdiploid B-ALL, in which case it is associated with a poor prognosis. However, due to different translocation partner genes at chromosomes 1 and 19, distinct subtypes of hyperdiploid B-ALL with t(1;19)/der(19)t(1;19) are recognized based on the presence or absence of the TCF3-PBX1 fusion gene, but the cytogenetic and etiologic differences between the two remain understudied. Findings We report a case of an adult with a history of relapsed precursor B-ALL whose conventional cytogenetics showed an abnormal female karyotype with both hyperdiploidy and a t(1;19)(q23;p13). Fluorescence in situ hybridization (FISH) on previously G-banded metaphases using the LSI TCF3/PBX1 Dual Color, Dual Fusion Translocation Probe confirmed the presence of the TCF3-PBX1 gene fusion. Conclusions This particular pattern with a TCF3-PBX1 fusion within the context of a hyperdiploid karyotype is seen in B-ALL and is usually associated with a poor outcome. This case is one of only a few cases with both hyperdiploidy and a confirmed TCF3-PBX1 fusion, demonstrating the importance of using FISH for proper molecular classification of these cases in order to distinguish them from those with hyperdiploidy but no TCF3-PBX1 fusion gene. Such molecular studies may provide insight into the precise differences between TCF3-PBX1 positive and negative hyperdiploid B-ALL bearing the t(1;19)(q23;p13).
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Affiliation(s)
- Carlos A Tirado
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
| | - David Shabsovich
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
| | - Lei Yeh
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
| | - Sheeja T Pullarkat
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
| | - Lynn Yang
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
| | - Michael Kallen
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
| | - Nagesh Rao
- Department of Pathology and Laboratory Medicine, David Geffen UCLA School of Medicine, Los Angeles, CA 90024 USA
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High hyperdiploidy among adolescents and adults with acute lymphoblastic leukaemia (ALL): cytogenetic features, clinical characteristics and outcome. Leukemia 2013; 28:1511-8. [DOI: 10.1038/leu.2013.379] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Revised: 12/03/2013] [Accepted: 12/05/2013] [Indexed: 01/09/2023]
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