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Srinivasan S, Ramanathan S, Kumar S, Peyam S, Radhakrishnan V. Prevalence and prognostic significance of IKZF1 deletion in paediatric acute lymphoblastic leukemia: A systematic review and meta-analysis. Ann Hematol 2023:10.1007/s00277-023-05250-1. [PMID: 37154889 DOI: 10.1007/s00277-023-05250-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 04/19/2023] [Indexed: 05/10/2023]
Abstract
IKZF1 (IKAROS family Zinc Finger 1) alteration is an essential regulator of both T- and B-cell lineage specification with leukemogenic potential. IKZF1 deletion have been described in childhood acute lymphoblastic leukemia (ALL) with varying prevalence often influenced by underlying cytogenetics and also shown to have diverse prognostic significance. We aimed to evaluate the prevalence and prognostic significance of IKZF1 deletion among childhood ALL. Electronic databases of MEDLINE, EMBASE and SCOPUS were searched and 32 studies found eligible. Estimated prevalence of IKZF1 deletion among BCR::ABL1 negative and BCR::ABL1 positive ALL patients was 14% (95%CI:13-16%, I2 = 79%; 26 studies) and 63% (95%CI:59-68% I2 = 42%; 10 studies) respectively. Most common site of IKZF1 deletion was whole chromosome (exon1-8) deletion in 32.3% (95%CI: 23.8-40.7%) followed by exon 4-7 deletion in 28.6% (95%CI: 19.7-37.5%). A positive minimal residual disease at the end of induction was more common among patients with IKZF1 deletion, odds ratio: 3.09 (95%CI:2.3-4.16, I2 = 54%; 15 studies). Event-free survival and overall survival were significantly worse for IKZF1 deletion, hazard ratio (HR): 2.10 (95%CI:1.90-2.32, I2 = 28%; 31 studies) and HR: 2.38 (95%CI:1.93-2.93, I2 = 40; 15 studies) respectively. In summary, the current meta-analysis highlights the frequency of IKZF1 deletion and its negative impact on survival in childhood ALL. Further studies exploring the influence of IKZF1 deletion in the presence of classical cytogenetic and other copy number alterations would further help in characterising its prognostic role.
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Affiliation(s)
- Shyam Srinivasan
- Department of Pediatric Oncology, ACTREC/Tata Memorial Hospital, Tata Memorial Centre, Homi Bhabha National Institute, Parel, Mumbai, 400 012, Maharashtra, India.
| | - Subramaniam Ramanathan
- Department of Pediatric Oncology and BMT, Great North Children's Hospital, Royal Victoria Infirmary, Newcastle Upon Tyne, United Kingdom
| | - Shathish Kumar
- Department of Anaesthesiology, Manipal Hospital Whitefield, Bangalore, India
| | - Srinivasan Peyam
- Department of Pediatrics, Pediatric Hematology-oncology Division, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Öfverholm I, Rezayee F, Heyman M, Harila A, Arvidsson L, Schmiegelow K, Norén-Nyström U, Barbany G. The prognostic impact of IKZF1 deletions and UKALL genetic classifiers in paediatric B-cell precursor acute lymphoblastic leukaemia treated according to NOPHO 2008 protocols. Br J Haematol 2023. [PMID: 37156607 DOI: 10.1111/bjh.18852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/10/2023]
Abstract
We investigated 390 paediatric B-cell precursor acute lymphoblastic leukaemia (BCP-ALL) patients treated according to NOPHO ALL 2008, regarding copy number alterations (CNA) of eight loci associated with adverse prognosis, including IKZF1. The impact on outcome was investigated for each locus individually, combined as CNA profiles and together with cytogenetic information. The presence of IKZF1 deletion or a poor-risk CNA profile was associated with poor outcome in the whole cohort. In the standard-risk group, IKZF1-deleted cases had an inferior probability of relapse-free survival (pRFS) (p ≤ 0.001) and overall survival (pOS) (p ≤ 0.001). Additionally, among B-other patients, IKZF1 deletion correlated with poor pRFS (60% vs. 90%) and pOS (65% vs. 89%). Both IKZF1 deletion and a poor-risk CNA profile were independent factors for relapse and death in multivariable analyses adjusting for known risk factors including measurable residual disease. Our data indicate that BCP-ALL patients with high-risk CNA or IKZF1 deletion have worse prognosis despite otherwise low-risk features. Conversely, patients with both a good CNA and cytogenetic profile had a superior relapse-free (p ≤ 0.001) and overall survival (p ≤ 0.001) in the cohort, across all risk groups. Taken together, our findings highlight the potential of CNA assessment to refine stratification in ALL.
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Affiliation(s)
- Ingegerd Öfverholm
- Department of Molecular Medicine and Surgery and Centre for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Fatemah Rezayee
- Department of Molecular Medicine and Surgery and Centre for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Mats Heyman
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - Arja Harila
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Linda Arvidsson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Kjeld Schmiegelow
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, Copenhagen, Denmark
- Faculty of Medicine, Institute of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | | | - Gisela Barbany
- Department of Molecular Medicine and Surgery and Centre for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
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Østergaard A, Enshaei A, Pieters R, Vora A, Horstmann MA, Escherich G, Johansson B, Heyman M, Schmiegelow K, Hoogerbrugge PM, den Boer ML, Kuiper RP, Moorman AV, Boer JM, van Leeuwen FN. The Prognostic Effect of IKZF1 Deletions in ETV6:: RUNX1 and High Hyperdiploid Childhood Acute Lymphoblastic Leukemia. Hemasphere 2023; 7:e875. [PMID: 37153875 PMCID: PMC10162793 DOI: 10.1097/hs9.0000000000000875] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 03/09/2023] [Indexed: 05/10/2023] Open
Abstract
IKZF1 deletions are an established prognostic factor in childhood acute lymphoblastic leukemia (ALL). However, their relevance in patients with good risk genetics, namely ETV6::RUNX1 and high hyperdiploid (HeH), ALL remains unclear. We assessed the prognostic impact of IKZF1 deletions in 939 ETV6::RUNX1 and 968 HeH ALL patients by evaluating data from 16 trials from 9 study groups. Only 3% of ETV6::RUNX1 cases (n = 26) were IKZF1-deleted; this adversely affected survival combining all trials (5-year event-free survival [EFS], 79% versus 92%; P = 0.02). No relapses occurred among the 14 patients with an IKZF1 deletion treated on a minimal residual disease (MRD)-guided protocols. Nine percent of HeH cases (n = 85) had an IKZF1 deletion; this adversely affected survival in all trials (5-year EFS, 76% versus 89%; P = 0.006) and in MRD-guided protocols (73% versus 88%; P = 0.004). HeH cases with an IKZF1 deletion had significantly higher end of induction MRD values (P = 0.03). Multivariate Cox regression showed that IKZF1 deletions negatively affected survival independent of sex, age, and white blood cell count at diagnosis in HeH ALL (hazard ratio of relapse rate [95% confidence interval]: 2.48 [1.32-4.66]). There was no evidence to suggest that IKZF1 deletions affected outcome in the small number of ETV6::RUNX1 cases in MRD-guided protocols but that they are related to higher MRD values, higher relapse, and lower survival rates in HeH ALL. Future trials are needed to study whether stratifying by MRD is adequate for HeH patients or additional risk stratification is necessary.
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Affiliation(s)
- Anna Østergaard
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Oncode Institute, Utrecht, Netherlands
| | - Amir Enshaei
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
| | - Ajay Vora
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
| | - Martin A. Horstmann
- Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- University Medical Center Hamburg, Research Institute Children’s Cancer Center, Hamburg, Germany
| | - Gabriele Escherich
- Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Bertil Johansson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Sweden
- Department of Clinical Genetics, Pathology, and Molecular Diagnostics, Office for Medical Services, Region Skåne, Lund, Sweden
| | - Mats Heyman
- Childhood Cancer Research Unit, Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
- Department of Paediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Denmark
| | | | - Monique L. den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Oncode Institute, Utrecht, Netherlands
| | - Roland P. Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Department of Genetics, University Medical Center Utrecht, Netherlands
| | - Anthony V. Moorman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Judith M. Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands
- Oncode Institute, Utrecht, Netherlands
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Utility of Fluorescence In Situ Hybridization in Clinical and Research Applications. Clin Lab Med 2022; 42:573-586. [PMID: 36368783 DOI: 10.1016/j.cll.2022.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Measurable residual disease analysis in paediatric acute lymphoblastic leukaemia patients with ABL-class fusions. Br J Cancer 2022; 127:908-915. [PMID: 35650277 PMCID: PMC9427854 DOI: 10.1038/s41416-022-01806-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 03/12/2022] [Accepted: 03/25/2022] [Indexed: 11/30/2022] Open
Abstract
Background ABL-class fusions including NUP214-ABL1 and EBF1-PDGFRB occur in high risk acute lymphoblastic leukaemia (ALL) with gene expression patterns similar to BCR-ABL-positive ALL. Our aim was to evaluate new DNA-based measurable residual disease (MRD) tests detecting these fusions and IKZF1-deletions in comparison with conventional immunoglobulin/T-cell receptor (Ig/TCR) markers. Methods Precise genomic breakpoints were defined from targeted or whole genome next generation sequencing for ABL-fusions and BCR-ABL1. Quantitative PCR assays were designed and used to re-measure MRD in remission bone marrow samples previously tested using Ig/TCR markers. All MRD testing complied with EuroMRD guidelines. Results ABL-class patients had 46% 5year event-free survival and 79% 5year overall survival. All had sensitive fusion tests giving high concordance between Ig/TCR and ABL-class fusion results (21 patients, n = 257 samples, r2 = 0.9786, P < 0.0001) and Ig/TCR and IKZF1-deletion results (9 patients, n = 143 samples, r2 = 0.9661, P < 0.0001). In contrast, in BCR-ABL1 patients, Ig/TCR and BCR-ABL1 tests were discordant in 32% (40 patients, n = 346 samples, r2 = 0.4703, P < 0.0001) and IKZF1-deletion results were closer to Ig/TCR (25 patients, n = 176, r2 = 0.8631, P < 0.0001). Conclusions MRD monitoring based on patient-specific assays detecting gene fusions or recurrent assays for IKZF1-deletions is feasible and provides good alternatives to Ig/TCR tests to monitor MRD in ABL-class ALL.
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Greenwood M, Trahair T, Sutton R, Osborn M, Kwan J, Mapp S, Howman R, Anazodo A, Wylie B, D’Rozario J, Hertzberg M, Irving I, Yeung D, Coyle L, Jager A, Engeler D, Venn N, Frampton C, Wei AH, Bradstock K, Dalla-Pozza L. An MRD-stratified pediatric protocol is as deliverable in adolescents and young adults as in children with ALL. Blood Adv 2021; 5:5574-5583. [PMID: 34662896 PMCID: PMC8714725 DOI: 10.1182/bloodadvances.2021005576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 09/21/2021] [Indexed: 11/20/2022] Open
Abstract
Pediatric regimens have improved outcomes in adolescent and young adult (AYA) acute lymphoblastic leukemia (ALL). However, results remain inferior to children with ALL. The Australasian Leukaemia and Lymphoma Group (ALLG) ALL06 study (anzctr.org.au/ACTRN12611000814976) was designed to assess whether a pediatric ALL regimen (Australian and New Zealand Children's Haematology and Oncology Group [ANZCHOG] Study 8) could be administered to patients aged 15 to 39 years in a comparable time frame to children as assessed by the proportion of patients completing induction/consolidation and commencing the next phase of therapy (protocol M or high-risk [HR] treatment) by day 94. Minimal residual disease (MRD) response stratified patients to HR treatment and transplantation. From 2012 to 2018, a total of 86 patients were enrolled; 82 were eligible. Median age was 22 years (range, 16-38 years). Induction/consolidation was equally deliverable in ALL06 as in Study 8. In ALL06, 41.5% (95% confidence interval [CI], 30.7-52.9) commenced protocol M or HR therapy by day 94 vs 39.3% in Study 8 (P = .77). Median time to protocol M/HR treatment was 96 days (interquartile range, 87.5-103 days) in ALL06 vs 98 days in Study 8 (P = .80). Induction mortality was 3.6%. With a median follow-up of 44 months (1-96 months), estimated 3-year disease-free survival was 72.8% (95% CI, 62.8-82.7), and estimated 3-year overall survival was 74.9% (95% CI, 65.3-84.5). End induction/consolidation MRD negativity rate was 58.6%. Body mass index ≥30 kg/m2 and day 79 MRD positivity were associated with poorer disease-free survival and overall survival. Pediatric therapy was safe and as deliverable in AYA patients as in children with ALL. Intolerance of pediatric ALL induction/consolidation is not a major contributor to inferior outcomes in AYA ALL.
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Affiliation(s)
- Matthew Greenwood
- Royal North Shore Hospital, St. Leonards, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Toby Trahair
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Randwick, NSW, Australia
- Kids Cancer Centre, Sydney Children’s Hospital, Randwick, NSW, Australia
| | - Rosemary Sutton
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Randwick, NSW, Australia
- School of Women’s and Children’s Health, University of New South Wales Medicine, Randwick, NSW, Australia
| | | | - John Kwan
- Westmead Hospital, Westmead, NSW, Australia
| | - Sally Mapp
- Princess Alexandra Hospital, Brisbane, QLD, Australia
| | | | | | | | | | | | - Ian Irving
- The Townsville Hospital, Townsville, QLD, Australia
| | - David Yeung
- Royal Adelaide Hospital, Adelaide, SA, Australia
| | - Luke Coyle
- Royal North Shore Hospital, St. Leonards, NSW, Australia
| | - Amanda Jager
- Australasian Leukaemia Lymphoma Group, Melbourne, VIC, Australia
| | - Dan Engeler
- Australasian Leukaemia Lymphoma Group, Melbourne, VIC, Australia
| | - Nicola Venn
- Children’s Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Randwick, NSW, Australia
| | - Chris Frampton
- Department of Psychological Medicine, University of Otago, Christchurch, New Zealand
| | - Andrew H. Wei
- The Alfred Hospital and Monash University, Melbourne, VIC, Australia; and
| | - Kenneth Bradstock
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Westmead Hospital, Westmead, NSW, Australia
| | - Luciano Dalla-Pozza
- Cancer Centre for Children, The Children’s Hospital at Westmead, Westmead, NSW, Australia
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Michels N, Boer JM, Enshaei A, Sutton R, Heyman M, Ebert S, Fiocco M, de Groot-Kruseman HA, van der Velden VHJ, Barbany G, Escherich G, Vora A, Trahair T, Dalla-Pozza L, Pieters R, Zur Stadt U, Schmiegelow K, Moorman AV, Zwaan CM, den Boer ML. Minimal residual disease, long-term outcome, and IKZF1 deletions in children and adolescents with Down syndrome and acute lymphocytic leukaemia: a matched cohort study. LANCET HAEMATOLOGY 2021; 8:e700-e710. [PMID: 34560013 PMCID: PMC8480280 DOI: 10.1016/s2352-3026(21)00272-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 08/09/2021] [Accepted: 08/12/2021] [Indexed: 11/19/2022]
Abstract
Background Patients with Down syndrome and acute lymphocytic leukaemia are at an increased risk of treatment-related mortality and relapse, which is influenced by unfavourable genetic aberrations (eg, IKZF1 deletion). We aimed to investigate the potential underlying effect of Down syndrome versus the effects of adverse cancer genetics on clinical outcome. Method Patients (aged 1–23 years) with Down syndrome and acute lymphocytic leukaemia and matched non-Down syndrome patients with acute lymphocytic leukaemia (matched controls) from eight trials (DCOG ALL10 and ALL11, ANZCHOG ALL8, AIEOP-BFM ALL2009, UKALL2003, NOPHO ALL2008, CoALL 07-03, and CoALL 08-09) done between 2002 and 2018 across various countries (the Netherlands, the UK, Australia, Denmark, Finland, Iceland, Norway, Sweden, and Germany) were included. Participants were matched (1:3) for clinical risk factors and genetics, including IKZF1 deletion. The primary endpoint was the comparison of MRD levels (absolute MRD levels were categorised into two groups, low [<0·0001] and high [≥0·0001]) between patients with Down syndrome and acute lymphocytic leukaemia and matched controls, and the secondary outcomes were comparison of long-term outcomes (event-free survival, overall survival, relapse, and treatment-related mortality [TRM]) between patients with Down syndrome and acute lymphocytic leukaemia and matched controls. Two matched cohorts were formed: for MRD analyses and for long-term outcome analyses. For both cohorts, matching was based on induction regimen; for the long-term outcome cohort, matching also included MRD-guided treatment group. We used mixed-effect models, Cox models, and competing risk for statistical analyses. Findings Of 251 children and adolescents with Down syndrome and acute lymphocytic leukaemia, 136 were eligible for analyses and matched to 407 (of 8426) non-Down syndrome patients with acute lymphocytic leukaemia (matched controls). 113 patients with Down syndrome and acute lymphocytic leukaemia were excluded from matching in accordance with predefined rules, no match was available for two patients with Down syndrome and acute lymphocytic leukaemia. The proportion of patients with high MRD at the end of induction treatment was similar for patients with Down syndrome and acute lymphocytic leukaemia (52 [38%] of 136) and matched controls (157 [39%] of 403; OR 0·97 [95% CI 0·64–1·46]; p=0·88). Patients with Down syndrome and acute lymphocytic leukaemia had a higher relapse risk than did matched controls in the IKZF1 deleted group (relapse at 5 years 37·1% [17·1–57·2] vs 13·2% [6·1–23·1]; cause-specific hazard ratio [HRcs] 4·3 [1·6–11·0]; p=0·0028), but not in the IKZF1 wild-type group (relapse at 5 years 5·8% [2·1–12·2] vs 8·1% [5·1–12·0]; HRcs 1·0 [0·5–2·1]; p=0·99). In addition to increased induction deaths (15 [6%] of 251 vs 69 [0·8%] of 8426), Down syndrome and acute lymphocytic leukaemia was associated with a higher risk of post-induction TRM compared with matched controls (TRM at 5 years 12·2% [7·0–18·9] vs 2·7% [1·3–4·9]; HRcs 5·0 [2·3–10·8]; p<0·0001). Interpretation Induction treatment is equivalently effective for patients with Down syndrome and acute lymphocytic leukaemia and for matched patients without Down syndrome. Down syndrome itself provides an additional risk in individuals with IKZF1 deletions, suggesting an interplay between the germline environment and this poor risk somatic aberration. Different treatment strategies are warranted considering both inherent risk of relapse and high risk of TRM. Funding Stichting Kinder Oncologisch Centrum Rotterdam and the Princess Máxima Center Foundation, NHMRC Australia, The Cancer Council NSW, Tour de Cure, Blood Cancer UK, UK Medical Research Council, Children with Cancer, Swedish Society for Pediatric Cancer, Swedish Childhood Cancer Fund, Danish Cancer Society and the Danish Childhood Cancer Foundation.
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Affiliation(s)
- Naomi Michels
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Oncode Institute, Utrecht, Netherlands; Department of Pediatric Oncology and Hematology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, Netherlands
| | - Judith M Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Oncode Institute, Utrecht, Netherlands
| | - Amir Enshaei
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Rosemary Sutton
- School of Women and Children's Health, University of New South Wales Medicine, Randwick, NSW, Australia; Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia
| | - Mats Heyman
- Childhood Cancer Research Unit, Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Department of Paediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Sabine Ebert
- Clinic of Pediatric Hematology and Oncology, University Medical Centre, Hamburg-Eppendorf, Hamburg, Germany
| | - Marta Fiocco
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Mathematical Institute, Leiden University, Leiden, Netherlands; Department of Biomedical Data Sciences, Medical Statistics Section, Leiden University Medical Center, Leiden, Netherlands; Dutch Childhood Oncology Group, Utrecht, Netherlands
| | - Hester A de Groot-Kruseman
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Dutch Childhood Oncology Group, Utrecht, Netherlands
| | | | - Gisela Barbany
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden; Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Gabriele Escherich
- Clinic of Pediatric Hematology and Oncology, University Medical Centre, Hamburg-Eppendorf, Hamburg, Germany
| | - Ajay Vora
- Department of Haematology, Great Ormond Street Hospital, London, UK
| | - Toby Trahair
- School of Women and Children's Health, University of New South Wales Medicine, Randwick, NSW, Australia; Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia; Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia
| | - Luciano Dalla-Pozza
- Cancer Centre for Children, The Children's Hospital at Westmead, Westmead, NSW, Australia
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Dutch Childhood Oncology Group, Utrecht, Netherlands
| | - Udo Zur Stadt
- Clinic of Pediatric Hematology and Oncology, University Medical Centre, Hamburg-Eppendorf, Hamburg, Germany
| | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Institute of Clinical Medicine, Faculty of Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Anthony V Moorman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - C Michel Zwaan
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Department of Pediatric Oncology and Hematology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, Netherlands.
| | - Monique L den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands; Oncode Institute, Utrecht, Netherlands; Department of Pediatric Oncology and Hematology, Erasmus Medical Center-Sophia Children's Hospital, Rotterdam, Netherlands
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Whole-genome sequencing facilitates patient-specific quantitative PCR-based minimal residual disease monitoring in acute lymphoblastic leukaemia, neuroblastoma and Ewing sarcoma. Br J Cancer 2021; 126:482-491. [PMID: 34471258 PMCID: PMC8810788 DOI: 10.1038/s41416-021-01538-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 08/07/2021] [Accepted: 08/23/2021] [Indexed: 12/12/2022] Open
Abstract
Background Minimal residual disease (MRD) measurement is a cornerstone of contemporary acute lymphoblastic leukaemia (ALL) treatment. The presence of immunoglobulin (Ig) and T cell receptor (TCR) gene recombinations in leukaemic clones allows widespread use of patient-specific, DNA-based MRD assays. In contrast, paediatric solid tumour MRD remains experimental and has focussed on generic assays targeting tumour-specific messenger RNA, methylated DNA or microRNA. Methods We examined the feasibility of using whole-genome sequencing (WGS) data to design tumour-specific polymerase chain reaction (PCR)-based MRD tests (WGS-MRD) in 18 children with high-risk relapsed cancer, including ALL, high-risk neuroblastoma (HR-NB) and Ewing sarcoma (EWS) (n = 6 each). Results Sensitive WGS-MRD assays were generated for each patient and allowed quantitation of 1 tumour cell per 10−4 (0.01%)–10–5 (0.001%) mononuclear cells. In ALL, WGS-MRD and Ig/TCR-MRD were highly concordant. WGS-MRD assays also showed good concordance between quantitative PCR and droplet digital PCR formats. In serial clinical samples, WGS-MRD correlated with disease course. In solid tumours, WGS-MRD assays were more sensitive than RNA-MRD assays. Conclusions WGS facilitated the development of patient-specific MRD tests in ALL, HR-NB and EWS with potential clinical utility in monitoring treatment response. WGS data could be used to design patient-specific MRD assays in a broad range of tumours.
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Gupta SK, Bakhshi S, Kamal VK, Gupta R, Sharma P, Pushpam D, Sahoo RK, Sharma A. Proposal and clinical application of molecular genetic risk scoring system, "MRplus", for BCR-ABL1 negative pediatric B-cell acute lymphoblastic leukemia- report from a single centre. Leuk Res 2021; 111:106683. [PMID: 34371436 DOI: 10.1016/j.leukres.2021.106683] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 07/28/2021] [Accepted: 08/01/2021] [Indexed: 12/25/2022]
Abstract
INTRODUCTION We propose "MRplus", a molecular genetic risk score and check its clinical application in the risk-stratification of pediatric B-ALL. METHODS The genomic DNA of untreated pediatricBCR-ABL1 negative B-ALL patients was analyzed for deletions of IKZF1, PAX5, CDKN2A/B, BTG1, RB1, ETV6, EBF1, ERG, pseudoautosomal region(PAR) genes using multiplex ligation-dependent probe amplification, along with the routine genetic work-up. The patients were assigned an 'M'score- 0 (M0) for low and 1 (M1) for high genetic-risk as per the criteria by Moorman et al., and another score "IKplus"-1 (IKplus1) for IKZF1plus as per the criteria by Stanulla et al., and 0 (IKplus0) for other patients. The final "MRplus" risk-score of 0 (MRplus0), 1 (MRplus1) or 2 (MRplus2) was obtained by adding both these scores. The association of risk scores with overall survival (OS) and event free survival(EFS) was seen using Cox proportion hazard model. The overall goodness of fit of the model was done using Cox-Snell residuals. RESULTS The median age of 320 patients was 6 years (1-18 years). The patients with score M1 were 139 (43.4 %), M0-181 (56.6 %); IKplus1-32 (10 %) and IKplus0-288 (90 %). The final "MRplus" score of 0,1,or 2 was obtained in 181(56.6 %), 107(33.4 %) and 32(10 %) patients respectively. The post-induction remission rate was 90.7 %, 77.8 %, 73.9 % (p = 0.004); 4-year OS 67 %, 48 %, 27 % (p < 0.001); and 4-year EFS 56 %, 34 %, 19 %(p < 0.001) in patients with "MRplus" score 0,1,and 2 respectively. CONCLUSIONS The proposed "MRplus" scoring at baseline could identify three distinct risk groups-good (MRplus0), intermediate (MRplus1) and poor (MRplus2), with different outcomes; in pediatricBCR-ABL1 negative B-ALL. This may help in better risk-stratification and selection of patients for alternative treatment approaches.
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Affiliation(s)
- Sanjeev Kumar Gupta
- Laboratory Oncology Unit, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Vineet Kumar Kamal
- Division of Epidemiology & Biostatistics, ICMR National Institute of Epidemiology, Chennai, India
| | - Ritu Gupta
- Laboratory Oncology Unit, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Preity Sharma
- Laboratory Oncology Unit, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Deepam Pushpam
- Department of Medical Oncology, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Ranjit Kumar Sahoo
- Department of Medical Oncology, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
| | - Atul Sharma
- Department of Medical Oncology, Dr BRA IRCH, All India Institute of Medical Sciences (AIIMS), New Delhi, India
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10
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Ampatzidou M, Florentin L, Papadakis V, Paterakis G, Tzanoudaki M, Bouzarelou D, Papadhimitriou SI, Polychronopoulou S. Copy Number Alteration Profile Provides Additional Prognostic Value for Acute Lymphoblastic Leukemia Patients Treated on BFM Protocols. Cancers (Basel) 2021; 13:cancers13133289. [PMID: 34209196 PMCID: PMC8268490 DOI: 10.3390/cancers13133289] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 01/03/2023] Open
Abstract
Simple Summary Recent advances in genomic analyses of acute lymphoblastic leukemia (ALL) have identified novel prognostic markers associated with patient outcome. In this frame, copy number alterations (CNAs) are constantly gaining relevance as potential risk stratification markers. Herein, we present our data of a proposed CNA-profile risk-index applied on a Greek ALLIC-BFM cohort. The results of our study demonstrate that EFS for GR(good-risk)-CNA-profile patients was 96.0% versus 57.6% of PR(poor-risk)-CNA-profile ones (p < 0.001) in the whole cohort. EFS within the IR-group for the GR-CNA vs. PR-CNA subgroups was 100.0% vs. 60.0% (p < 0.001), and within the HR-group, 88.2% vs. 55.6% (p = 0.047), respectively. The above results indicate that the application of the proposed CNA-profile classifier is feasible in BFM-based protocols, adding prognostic value to the existing prognostic markers and successfully stratifying patients within prognostic subgroups. This novel genomic risk index can be incorporated in future risk-stratification algorithms, further refining MRD-based stratification and possibly reassigning optimal treatment strategies. Abstract We present our data of a novel proposed CNA-profile risk-index, applied on a Greek ALLIC-BFM-treated cohort, aiming at further refining genomic risk-stratification. Eighty-five of 227 consecutively treated ALL patients were analyzed for the copy-number-status of eight genes (IKZF1/CDKN2A/2B/PAR1/BTG1/EBF1/PAX5/ETV6/RB1). Using the MLPA-assay, patients were stratified as: (1) Good-risk(GR)-CNA-profile (n = 51), with no deletion of IKZF1/CDKN2A/B/PAR1/BTG1/EBF1/PAX5/ETV6/RB1 or isolated deletions of ETV6/PAX5/BTG1 or ETV6 deletions with a single additional deletion of BTG1/PAX5/CDKN2A/B. (2) Poor-risk(PR)-CNA-profile (n = 34), with any deletion of ΙΚΖF1/PAR1/EBF1/RB1 or any other CNA. With a median follow-up time of 49.9 months, EFS for GR-CNA-profile and PR-CNA-profile patients was 96.0% vs. 57.6% (p < 0.001). For IR-group and HR-group patients, EFS for the GR-CNA/PR-CNA subgroups was 100.0% vs. 60.0% (p < 0.001) and 88.2% vs. 55.6% (p = 0.047), respectively. Among FC-MRDd15 + patients (MRDd15 ≥ 10−4), EFS rates were 95.3% vs. 51.7% for GR-CNA/PR-CNA subjects (p < 0.001). Similarly, among FC-MRDd33 + patients (MRDd33 ≥ 10−4), EFS was 92.9% vs. 27.3% (p < 0.001) and for patients FC-MRDd33 − (MRDd33 < 10−4), EFS was 97.2% vs. 72.7% (p = 0.004), for GR-CNA/PR-CNA patients, respectively. In a multivariate analysis, the CNA-profile was the most important outcome predictor. In conclusion, the CNA-profile can establish a new genomic risk-index, identifying a distinct subgroup with increased relapse risk among the IR-group, as well as a subgroup of patients with superior prognosis among HR-patients. The CNA-profile is feasible in BFM-based protocols, further refining MRD-based risk-stratification.
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Affiliation(s)
- Mirella Ampatzidou
- Department of Pediatric Hematology-Oncology, “Aghia Sophia” Children’s Hospital, 11527 Athens, Greece; (V.P.); (S.P.)
- Correspondence:
| | - Lina Florentin
- Alfa Laboratory Diagnostic Center, YGEIA Hospital, 11524 Athens, Greece; (L.F.); (D.B.)
| | - Vassilios Papadakis
- Department of Pediatric Hematology-Oncology, “Aghia Sophia” Children’s Hospital, 11527 Athens, Greece; (V.P.); (S.P.)
| | - Georgios Paterakis
- Laboratory of Flow Cytometry, Department of Immunology, “G.Gennimatas” General Hospital, 11527 Athens, Greece;
| | - Marianna Tzanoudaki
- Department of Immunology, “Aghia Sophia” Children’s Hospital, 11527 Athens, Greece;
| | - Dimitra Bouzarelou
- Alfa Laboratory Diagnostic Center, YGEIA Hospital, 11524 Athens, Greece; (L.F.); (D.B.)
| | - Stefanos I. Papadhimitriou
- Laboratory of Hematology, Department of Molecular Cytogenetics, “G.Gennimatas” General Hospital, 11527 Athens, Greece;
| | - Sophia Polychronopoulou
- Department of Pediatric Hematology-Oncology, “Aghia Sophia” Children’s Hospital, 11527 Athens, Greece; (V.P.); (S.P.)
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11
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Patil PP, Jafa E, Aggarwal M. Minimal Residual Disease in Acute Lymphoblastic Leukemia. Indian J Med Paediatr Oncol 2021. [DOI: 10.1055/s-0041-1729730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
- Pratik P. Patil
- Department of Medical Oncology, Max Super Speciality Hospital, New Delhi, India
| | - Esha Jafa
- Department of Medical Oncology, Super Speciality Cancer Institute, Lucknow, Uttar Pradesh, India
| | - Mayank Aggarwal
- Department of Medical Oncology, Max Super Speciality Hospital, New Delhi, India
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12
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Gupta SK, Bakhshi S, Gupta R, Sharma P, Pushpam D, Sahoo RK, Kamal VK. IKZF1 Deletion Subtyping and Outcome Analysis in BCR-ABL1-Negative Pediatric B-Cell Acute Lymphoblastic Leukemia: A Single-Institution Experience from North India. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2021; 21:e666-e673. [PMID: 33906825 DOI: 10.1016/j.clml.2021.03.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 03/12/2021] [Accepted: 03/23/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND IKZF1 deletions are associated with adverse outcomes in B-cell acute lymphoblastic leukemia (B-ALL). We assessed the prevalence and clinical impact of functional subtypes of IKZF1 deletions in pediatric BCR-ABL1-negative B-ALL. PATIENTS AND METHODS This retrospective study of IKZF1 deletions was done in cases of pediatric BCR-ABL1-negative B-ALL. The genomic DNA of cases, over a 53-month period, was analyzed using multiplex ligation-dependent probe amplification and multiplex fluorescent polymerase chain reaction. The deletions were divided into functional subgroups: (1) loss-of-function/haploinsufficiency, (2) dominant-negative, and (3) a combination of both types of deletion. The post-induction remission status, event-free survival (EFS), and overall survival (OS) were noted. RESULTS Out of 320 cases, 47 (14.7%) had IKZF1 deletions. Thirty-six of the 47 (77%) had loss-of-function deletions, 10 (21%) had dominant-negative deletions, and one (2%) had a combination of both types. The post-induction remission rates in cases with loss-of-function deletions (22/30, 73%; P = .060) and dominant-negative deletions (4/5, 80%; P = .517) were lower compared with those without deletions (215/248, 86.7%). These cases also had worse median EFS: 21.1 months (P = .006) for loss-of-function and 15.4 months (P = .156) for dominant-negative deletions, compared with 46.4 months in cases without IKZF1 deletions. They also had worse median OS: 23.4 months (P = .012) for loss-of-function deletions and 15.7 months (P = .233) for dominant-negative deletions, compared with median not reached in cases without IKZF1 deletions. CONCLUSION The IKZF1 deletions were seen in 14.7% of BCR-ABL1-negative pediatric B-ALL. Most of these deletions (77%) were loss-of-function type. The cases with loss-of-function deletions had lower remission rates and poor EFS and OS compared with cases without IKZF1 deletions. A similar trend of poor outcome was seen in the few cases with dominant-negative IKZF1 deletions.
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Affiliation(s)
- Sanjeev Kumar Gupta
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi, India.
| | - Sameer Bakhshi
- Department of Medical Oncology, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Ritu Gupta
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Preity Sharma
- Laboratory Oncology Unit, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Deepam Pushpam
- Department of Medical Oncology, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Ranjit Kumar Sahoo
- Department of Medical Oncology, Dr. B.R.A. IRCH, All India Institute of Medical Sciences, New Delhi, India
| | - Vineet Kumar Kamal
- Division of Epidemiology and Biostatistics, National Institute of Epidemiology, Chennai, India
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13
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Fitter S, Bradey AL, Kok CH, Noll JE, Wilczek VJ, Venn NC, Law T, Paisitkriangkrai S, Story C, Saunders L, Dalla Pozza L, Marshall GM, White DL, Sutton R, Zannettino ACW, Revesz T. CKLF and IL1B transcript levels at diagnosis are predictive of relapse in children with pre-B-cell acute lymphoblastic leukaemia. Br J Haematol 2021; 193:171-175. [PMID: 33620089 DOI: 10.1111/bjh.17161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/10/2020] [Accepted: 09/11/2020] [Indexed: 11/30/2022]
Abstract
Disease relapse is the greatest cause of treatment failure in paediatric B-cell acute lymphoblastic leukaemia (B-ALL). Current risk stratifications fail to capture all patients at risk of relapse. Herein, we used a machine-learning approach to identify B-ALL blast-secreted factors that are associated with poor survival outcomes. Using this approach, we identified a two-gene expression signature (CKLF and IL1B) that allowed identification of high-risk patients at diagnosis. This two-gene expression signature enhances the predictive value of current at diagnosis or end-of-induction risk stratification suggesting the model can be applied continuously to help guide implementation of risk-adapted therapies.
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Affiliation(s)
- Stephen Fitter
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Alanah L Bradey
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Chung Hoow Kok
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Jacqueline E Noll
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Vicki J Wilczek
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Nicola C Venn
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, Australia
| | - Tamara Law
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, Australia
| | | | - Colin Story
- Department of Haematology-Oncology, Women's and Children's Hospital, Adelaide, SA, Australia
| | - Lynda Saunders
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Department of Haematology-Oncology, Women's and Children's Hospital, Adelaide, SA, Australia
| | - Luciano Dalla Pozza
- Cancer Centre for Children at The Children's Hospital at Westmead, Westmead, NSW, Australia
| | - Glenn M Marshall
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, Australia.,Kids Cancer Centre, Sydney Children's Hospital, Randwick, NSW, Australia.,School of Women's and Children's Health, University of NSW, Sydney, NSW, Australia
| | - Deborah L White
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Rosemary Sutton
- Children's Cancer Institute, Lowy Cancer Research Centre, UNSW, Sydney, NSW, Australia.,School of Women's and Children's Health, University of NSW, Sydney, NSW, Australia
| | - Andrew C W Zannettino
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Tamas Revesz
- Adelaide Medical School, Faculty of Health and Medical Science, University of Adelaide, Adelaide, SA, Australia.,Department of Haematology-Oncology, Women's and Children's Hospital, Adelaide, SA, Australia
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14
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González-Gil C, Ribera J, Ribera JM, Genescà E. The Yin and Yang-Like Clinical Implications of the CDKN2A/ARF/CDKN2B Gene Cluster in Acute Lymphoblastic Leukemia. Genes (Basel) 2021; 12:genes12010079. [PMID: 33435487 PMCID: PMC7827355 DOI: 10.3390/genes12010079] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 12/13/2022] Open
Abstract
Acute lymphoblastic leukemia (ALL) is a malignant clonal expansion of lymphoid hematopoietic precursors that exhibit developmental arrest at varying stages of differentiation. Similar to what occurs in solid cancers, transformation of normal hematopoietic precursors is governed by a multistep oncogenic process that drives initiation, clonal expansion and metastasis. In this process, alterations in genes encoding proteins that govern processes such as cell proliferation, differentiation, and growth provide us with some of the clearest mechanistic insights into how and why cancer arises. In such a scenario, deletions in the 9p21.3 cluster involving CDKN2A/ARF/CDKN2B genes arise as one of the oncogenic hallmarks of ALL. Deletions in this region are the most frequent structural alteration in T-cell acute lymphoblastic leukemia (T-ALL) and account for roughly 30% of copy number alterations found in B-cell-precursor acute lymphoblastic leukemia (BCP-ALL). Here, we review the literature concerning the involvement of the CDKN2A/B genes as a prognosis marker of good or bad response in the two ALL subtypes (BCP-ALL and T-ALL). We compare frequencies observed in studies performed on several ALL cohorts (adult and child), which mainly consider genetic data produced by genomic techniques. We also summarize what we have learned from mouse models designed to evaluate the functional involvement of the gene cluster in ALL development and in relapse/resistance to treatment. Finally, we examine the range of possibilities for targeting the abnormal function of the protein-coding genes of this cluster and their potential to act as anti-leukemic agents in patients.
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Affiliation(s)
- Celia González-Gil
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; (C.G.-G.); (J.R.); (J.M.R.)
| | - Jordi Ribera
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; (C.G.-G.); (J.R.); (J.M.R.)
| | - Josep Maria Ribera
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; (C.G.-G.); (J.R.); (J.M.R.)
- Clinical Hematology Department, ICO-Hospital Germans Trias i Pujol, 08916 Badalona, Spain
| | - Eulàlia Genescà
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Hospital Germans Trias i Pujol, Universitat Autònoma de Barcelona (UAB), 08916 Badalona, Spain; (C.G.-G.); (J.R.); (J.M.R.)
- Correspondence: ; Tel.: +34-93-557-28-08
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15
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Rosales-Rodríguez B, Núñez-Enríquez JC, Mejía-Aranguré JM, Rosas-Vargas H. Prognostic Impact of Somatic Copy Number Alterations in Childhood B-Lineage Acute Lymphoblastic Leukemia. Curr Oncol Rep 2020; 23:2. [PMID: 33190177 DOI: 10.1007/s11912-020-00998-5] [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] [Accepted: 11/05/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW The high prevalence of relapse in pediatric B-lineage acute lymphoblastic leukemia (B-ALL) despite the improvements achieved using current risk stratification schemes, demands more accurate methods for outcome prediction. Here, we provide a concise overview about the key advances that have expanded our knowledge regarding the somatic defects across B-ALL genomes, particularly focusing on copy number alterations (CNAs) and their prognostic impact. RECENT FINDINGS The identification of commonly altered genes in B-ALL has inspired the development of risk classifiers based on copy number states such as the IKZF1plus and the United Kingdom (UK) ALL-CNA classifiers to improve outcome prediction in B-ALL. CNA-risk classifiers have emerged as effective tools to predict disease relapse; though, their clinical applications are yet to be transferred to routine practice.
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Affiliation(s)
- Beatriz Rosales-Rodríguez
- Unidad de Investigación Médica en Genética Humana, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, 06720, Ciudad de México, Mexico.,Programa de Doctorado, Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, 04510, Ciudad de México, Mexico
| | - Juan Carlos Núñez-Enríquez
- Unidad de Investigación Médica en Epidemiología Clínica, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, 06720, Ciudad de México, Mexico
| | - Juan Manuel Mejía-Aranguré
- Unidad de Investigación Médica en Epidemiología Clínica, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, 06720, Ciudad de México, Mexico. .,Coordinación de Investigación en Salud, IMSS, Torre Academia Nacional de Medicina, 06720, Ciudad de México, Mexico.
| | - Haydeé Rosas-Vargas
- Unidad de Investigación Médica en Genética Humana, Hospital de Pediatría, Centro Médico Nacional Siglo XXI, IMSS, 06720, Ciudad de México, Mexico.
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16
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Cui L, Gao C, Wang CJ, Zhao XX, Li WJ, Li ZG, Zheng HY, Wang TY, Zhang RD. Combined analysis of IKZF1 deletions and CRLF2 expression on prognostic impact in pediatric B-cell precursor acute lymphoblastic leukemia. Leuk Lymphoma 2020; 62:410-418. [PMID: 33054468 DOI: 10.1080/10428194.2020.1832668] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This study aimed to investigate the combined impact of IKZF1 deletions/high expression of CRLF2 on the prognosis of pediatric B-cell precursor acute lymphoblastic leukemia (BCP-ALL). IKZF1 deletions and CRLF2 expression were assessed in bone marrow samples from 117 children with newly diagnosed BCP-ALL. Sixteen (13.7%) patients were found to harbor IKZF1 deletions, which was associated with inferior outcomes. The event-free survival (EFS) for patients with high -CRLF2 expression was significantly worse than that for low -CRLF2 expression. Moreover, combined modeling of IKZF1+ /CRLF2 high identified 7.8% of cases as the highest risk subgroup (7-year EFS 33.3 ± 15.7%). In a multivariate analysis, IKZF1+ /CRLF2 high remained a strong independent prognostic factor for EFS (HR: 14.263, p = 0.019). IKZF1 deletions and high -CRLF2 expression were associated with inferior outcomes, and the coexistence of IKZF1+ /CRLF2 high had a significant impact on an integrated prognostic model for high-risk BCP-ALL.
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Affiliation(s)
- Lei Cui
- Laboratory of Hematologic Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Chao Gao
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Chan-Juan Wang
- Laboratory of Hematologic Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xiao-Xi Zhao
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Wei-Jing Li
- Laboratory of Hematologic Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Zhi-Gang Li
- Laboratory of Hematologic Diseases, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hu-Yong Zheng
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Tian-You Wang
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Rui-Dong Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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17
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IKZF1 deletions in pediatric acute lymphoblastic leukemia: still a poor prognostic marker? Blood 2020; 135:252-260. [PMID: 31821407 DOI: 10.1182/blood.2019000813] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Accepted: 11/21/2019] [Indexed: 12/31/2022] Open
Abstract
Improved personalized adjustment of primary therapy to the perceived risk of relapse by using new prognostic markers for treatment stratification may be beneficial to patients with acute lymphoblastic leukemia (ALL). Here, we review the advances that have shed light on the role of IKZF1 aberration as prognostic factor in pediatric ALL and summarize emerging concepts in this field. Continued research on the interplay of disease biology with exposure and response to treatment will be key to further improve treatment strategies.
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18
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van de Ven C, Boeree A, Stalpers F, Zwaan CM, Den Boer ML. Ibrutinib is not an effective drug in primografts of TCF3-PBX1. Transl Oncol 2020; 13:100817. [PMID: 32563910 PMCID: PMC7306596 DOI: 10.1016/j.tranon.2020.100817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 11/26/2022] Open
Abstract
AIM The Bruton's tyrosine kinase (BTK) inhibitor Ibrutinib (PCI-32765) is effective in patients with multiple myeloma, non-Hodgkin lymphoma and chronic lymphoblastic leukemia. We previously showed that primary cells of children with TCF3-PBX1 positive B-cell precursor acute lymphoblastic leukemia (BCP-ALL) express BTK and are sensitive to ibrutinib in vitro. However, preclinical studies in mice are lacking that justify clinical implementation. METHODS Immunocompromised NSG mice were engrafted with a luciferase-positive TCF3-PBX1 leukemic cell line or primary leukemic cells and treated with ibrutinib or placebo. Additionally, primary cells were exposed in vitro to 4 main induction drugs as monotherapy and in combination with ibrutinib. RESULTS Treatment with ibrutinib of mice engrafted with a TCF3-PBX1 cell line, TCF3-PBX1 positive or TCF3-PBX1 negative primary leukemic cells did not result in prolonged life span compared to placebo treated mice. In vitro sensitivity to ibrutinib was unaltered in leukemic cells obtained from engrafted mice compared to the original material. However, ibrutinib treatment did not affect leukemic cell viability and tumor outgrowth, nor could lymphocytosis be detected. Ibrutinib was biologically active, since hCD19+ cells harvested from ibrutinib treated mice had no detectable levels of phospho-BTK at tyrosine 223 (pBTK Y223), whereas pBTK Y223 was still detectable in placebo treated cases. In combination tests, we noticed an antagonistic effect of ibrutinib on vincristine sensitivity, which was not observed for prednisolone, L-asparaginase and daunorubicin. CONCLUSIONS We conclude that ibrutinib is not the precision medicine of choice for TCF3-PBX1 positive BCP-ALL.
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Affiliation(s)
- Cesca van de Ven
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Oncode Institute, Utrecht, the Netherlands
| | - Aurélie Boeree
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Oncode Institute, Utrecht, the Netherlands
| | - Femke Stalpers
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Oncode Institute, Utrecht, the Netherlands
| | - C Michel Zwaan
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Department of Pediatric Oncology/Hematology, Erasmus MC - Sophia Children's Hospital, Rotterdam, the Netherlands
| | - Monique L Den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands; Oncode Institute, Utrecht, the Netherlands; Department of Pediatric Oncology/Hematology, Erasmus MC - Sophia Children's Hospital, Rotterdam, the Netherlands.
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19
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Examining treatment responses of diagnostic marrow in murine xenografts to predict relapse in children with acute lymphoblastic leukaemia. Br J Cancer 2020; 123:742-751. [PMID: 32536690 PMCID: PMC7462974 DOI: 10.1038/s41416-020-0933-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 05/08/2020] [Accepted: 05/21/2020] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND While current chemotherapy has increased cure rates for children with acute lymphoblastic leukaemia (ALL), the largest number of relapsing patients are still stratified as medium risk (MR) at diagnosis (50-60%). This highlights an opportunity to develop improved relapse-prediction models for MR patients. We hypothesised that bone marrow from MR patients who eventually relapsed would regrow faster in a patient-derived xenograft (PDX) model after induction chemotherapy than samples from patients in long-term remission. METHODS Diagnostic bone marrow aspirates from 30 paediatric MR-ALL patients (19 who relapsed, 11 who experienced remission) were inoculated into immune-deficient (NSG) mice and subsequently treated with either control or an induction-type regimen of vincristine, dexamethasone, and L-asparaginase (VXL). Engraftment was monitored by enumeration of the proportion of human CD45+ cells (%huCD45+) in the murine peripheral blood, and events were defined a priori as the time to reach 1% huCD45+, 25% huCD45+ (TT25%) or clinical manifestations of leukaemia (TTL). RESULTS The TT25% value significantly predicted MR patient relapse. Mutational profiles of PDXs matched their tumours of origin, with a clonal shift towards relapse observed in one set of VXL-treated PDXs. CONCLUSIONS In conclusion, establishing PDXs at diagnosis and subsequently applying chemotherapy has the potential to improve relapse prediction in paediatric MR-ALL.
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20
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Enshaei A, O'Connor D, Bartram J, Hancock J, Harrison CJ, Hough R, Samarasinghe S, den Boer ML, Boer JM, de Groot-Kruseman HA, Marquart HV, Noren-Nystrom U, Schmiegelow K, Schwab C, Horstmann MA, Escherich G, Heyman M, Pieters R, Vora A, Moppett J, Moorman AV. A validated novel continuous prognostic index to deliver stratified medicine in pediatric acute lymphoblastic leukemia. Blood 2020; 135:1438-1446. [PMID: 32315382 DOI: 10.1182/blood.2019003191] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/01/2020] [Indexed: 12/23/2022] Open
Abstract
Risk stratification is essential for the delivery of optimal treatment in childhood acute lymphoblastic leukemia. However, current risk stratification algorithms dichotomize variables and apply risk factors independently, which may incorrectly assume identical associations across biologically heterogeneous subsets and reduce statistical power. Accordingly, we developed and validated a prognostic index (PIUKALL) that integrates multiple risk factors and uses continuous data. We created discovery (n = 2405) and validation (n = 2313) cohorts using data from 4 recent trials (UKALL2003, COALL-03, DCOG-ALL10, and NOPHO-ALL2008). Using the discovery cohort, multivariate Cox regression modeling defined a minimal model including white cell count at diagnosis, pretreatment cytogenetics, and end-of-induction minimal residual disease. Using this model, we defined PIUKALL as a continuous variable that assigns personalized risk scores. PIUKALL correlated with risk of relapse and was validated in an independent cohort. Using PIUKALL to risk stratify patients improved the concordance index for all end points compared with traditional algorithms. We used PIUKALL to define 4 clinically relevant risk groups that had differential relapse rates at 5 years and were similar between the 2 cohorts (discovery: low, 3% [95% confidence interval (CI), 2%-4%]; standard, 8% [95% CI, 6%-10%]; intermediate, 17% [95% CI, 14%-21%]; and high, 48% [95% CI, 36%-60%; validation: low, 4% [95% CI, 3%-6%]; standard, 9% [95% CI, 6%-12%]; intermediate, 17% [95% CI, 14%-21%]; and high, 35% [95% CI, 24%-48%]). Analysis of the area under the curve confirmed the PIUKALL groups were significantly better at predicting outcome than algorithms employed in each trial. PIUKALL provides an accurate method for predicting outcome and more flexible method for defining risk groups in future studies.
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Affiliation(s)
- Amir Enshaei
- Leukaemia Research Cytogenetics Group, Wolfson Childhood Cancer Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - David O'Connor
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
- Department of Haematology, University College London Cancer Institute, London, United Kingdom
| | - Jack Bartram
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
| | - Jeremy Hancock
- Bristol Genetics Laboratory, North Bristol National Health Service Trust, Bristol, United Kingdom
| | - Christine J Harrison
- Leukaemia Research Cytogenetics Group, Wolfson Childhood Cancer Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Rachael Hough
- Department of Haematology, University College Hospital, London, United Kingdom
| | - Sujith Samarasinghe
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
| | - Monique L den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Dutch Childhood Oncology Group, Utrecht, The Netherlands
| | - Judith M Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | - Hanne V Marquart
- Department Clinical Immunology, Copenhagen University Hospital, Copenhagen, Denmark
| | | | - Kjeld Schmiegelow
- Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Claire Schwab
- Leukaemia Research Cytogenetics Group, Wolfson Childhood Cancer Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Martin A Horstmann
- Department of Pediatric Hematology and Oncology, University Medical Center, Hamburg, Germany
| | - Gabriele Escherich
- Department of Pediatric Hematology and Oncology, University Medical Center, Hamburg, Germany
| | - Mats Heyman
- Department of Pediatric Oncology, Karolinska University Hospital-Karolinska Institutet, Stockholm, Sweden; and
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Ajay Vora
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
| | - John Moppett
- Department of Hematology, Royal Hospital for Sick Children, Bristol, United Kingdom
| | - Anthony V Moorman
- Leukaemia Research Cytogenetics Group, Wolfson Childhood Cancer Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, United Kingdom
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21
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Vairy S, Tran TH. IKZF1 alterations in acute lymphoblastic leukemia: The good, the bad and the ugly. Blood Rev 2020; 44:100677. [PMID: 32245541 DOI: 10.1016/j.blre.2020.100677] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/20/2020] [Accepted: 02/28/2020] [Indexed: 12/16/2022]
Abstract
Advances in genomics have deepened our understanding of the biology of acute lymphoblastic leukemia (ALL), defined novel molecular leukemia subtypes, discovered new prognostic biomarkers and paved the way to emerging molecularly targeted therapeutic avenues. Since its discovery, IKZF1 has generated significant interest within the leukemia scientific community.IKZF1 plays a critical role in lymphoid development and its alterations cooperate to mediate leukemogenesis. IKZF1 alterations are present in approximately 15% of childhood ALL, rise in prevalence among adults with ALL and become highly enriched within kinase-driven ALL. A cumulating body of literature has highlighted the adverse prognostic impact of IKZF1 alterations in both Philadelphia chromosome (Ph)-negative and Ph-driven ALL. IKZF1 alterations thus emerge as an important prognostic biomarker in ALL. This article aims to provide a state-of-the-art review focusing on the prognostic clinical relevance of IKZF1 alterations in ALL, as well as current and future therapeutic strategies targeting IKZF1-altered ALL.
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Affiliation(s)
- Stephanie Vairy
- Division of Pediatric Hematology-Oncology, Charles-Bruneau Cancer Center, CHU Sainte-Justine, Montréal, Québec, Canada
| | - Thai Hoa Tran
- Division of Pediatric Hematology-Oncology, Charles-Bruneau Cancer Center, CHU Sainte-Justine, Montréal, Québec, Canada.
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22
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Berry NK, Scott RJ, Sutton R, Law T, Trahair TN, Dalla-Pozza L, Ritchie P, Barbaric D, Enjeti AK. Enrichment of atypical hyperdiploidy and IKZF1 deletions detected by SNP-microarray in high-risk Australian AIEOP-BFM B-cell acute lymphoblastic leukaemia cohort. Cancer Genet 2020; 242:8-14. [PMID: 32058318 DOI: 10.1016/j.cancergen.2020.01.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 01/11/2020] [Accepted: 01/28/2020] [Indexed: 02/07/2023]
Abstract
Acute lymphoblastic leukaemia (ALL) is the most common childhood malignancy with the majority of patients being classified as B-cell lineage (B-ALL). The sub-classification of B-ALL is based on genomic architecture. Recent studies have demonstrated the capability of SNP-microarrays to detect genomic changes in B-ALL which cannot be observed by conventional cytogenetic methods. In current clinical trials, B-ALL patients at high risk of relapse are mainly identified by adverse cancer genomics and/or poor response to early therapy. To test the hypothesis that inclusion of SNP-microarrays in frontline diagnostics could more efficiently and accurately identify adverse genomic factors than conventional techniques, we evaluated the Australian high-risk B-ALL cohort enrolled on AIEOP-BFM ALL 2009 study (n = 33). SNP-microarray analysis identified additional aberrations in 97% of patients (32/33) compared to conventional techniques. This changed the genomic risk category of 24% (8/33) of patients. Additionally, 27% (9/33) of patients exhibited a 'hyperdiploid' genome, which is generally associated with a good genomic risk and favourable outcomes. An enrichment of IKZF1 deletions was observed with one third of the cohort affected. Our findings suggest the current classification system could be improved and highlights the need to use more sensitive techniques such as SNP-microarray for cytogenomic risk stratification in B-ALL.
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Affiliation(s)
- Nadine K Berry
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, Australia; Department of Molecular Medicine, NSW Health Pathology-Hunter, Newcastle, New South Wales, Australia.
| | - Rodney J Scott
- School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, Australia; Department of Molecular Medicine, NSW Health Pathology-Hunter, Newcastle, New South Wales, Australia
| | - Rosemary Sutton
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Randwick, Australia; School of Women's and Children's Health, UNSW Medicine, Randwick, Australia
| | - Tamara Law
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Randwick, Australia
| | - Toby N Trahair
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Randwick, Australia; School of Women's and Children's Health, UNSW Medicine, Randwick, Australia; Kids Cancer Centre, Sydney Children's Hospital, Randwick Australia
| | - Luce Dalla-Pozza
- Cancer Centre for Children, The Children's Hospital at Westmead, Australia
| | - Petra Ritchie
- Women's and Children's Hospital, SA Pathology, University of Adelaide, Adelaide, Australia
| | - Draga Barbaric
- School of Women's and Children's Health, UNSW Medicine, Randwick, Australia; Kids Cancer Centre, Sydney Children's Hospital, Randwick Australia
| | - Anoop K Enjeti
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University Newcastle, New South Wales, Australia; Department of Haematology, NSW Health Pathology-Hunter, Newcastle, New South Wales, Australia
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23
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Frisch A, Ofran Y. How I diagnose and manage Philadelphia chromosome-like acute lymphoblastic leukemia. Haematologica 2019; 104:2135-2143. [PMID: 31582548 PMCID: PMC6821607 DOI: 10.3324/haematol.2018.207506] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 09/03/2019] [Indexed: 01/31/2023] Open
Abstract
Advances in our understanding of mechanisms of leukemogenesis and driver mutations in acute lymphoblastic leukemia (ALL) lead to a more precise and informative sub-classification, mainly of B-cell ALL. In parallel, in recent years, novel agents have been approved for the therapy of B-cell ALL, and many others are in active clinical research. Among the newly recognized disease subtypes, Philadelphia-chromosome-like ALL is the most heterogeneous and thus, diagnostically challenging. Given that this subtype of B-cell ALL is associated with a poorer prognosis, improvement of available therapeutic approaches and protocols is a burning issue. Herein, we summarize, in a clinically relevant manner, up-to-date information regarding diagnostic strategies developed for the identification of patients with Philadelphia-chromosome-like ALL. Common therapeutic dilemmas, presented as several case scenarios, are also discussed. It is currently acceptable that patients with B-cell ALL, treated with an aim of cure, irrespective of their age, be evaluated for a Philadelphia-chromosome-like signature as early as possible. Following Philadelphia-chromosome-like recognition, a higher risk of resistance or relapse must be realized and treatment should be modified based on the patient’s specific genetic driver and clinical features. However, while active targeted therapeutic options are limited, there is much more to do than just prescribe a matched inhibitor to the identified mutated driver genes. In this review, we present a comprehensive evidence-based approach to the diagnosis and management of Philadelphia-chromosome-like ALL at different time-points during the disease course.
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Affiliation(s)
- Avraham Frisch
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa
| | - Yishai Ofran
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa .,Bruce Rappaport Faculty of Medicine, Technion, Israel Institute of Technology, Haifa, Israel
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24
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Della Starza I, Chiaretti S, De Propris MS, Elia L, Cavalli M, De Novi LA, Soscia R, Messina M, Vitale A, Guarini A, Foà R. Minimal Residual Disease in Acute Lymphoblastic Leukemia: Technical and Clinical Advances. Front Oncol 2019; 9:726. [PMID: 31448230 PMCID: PMC6692455 DOI: 10.3389/fonc.2019.00726] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 07/22/2019] [Indexed: 12/28/2022] Open
Abstract
Introduction: Acute lymphoblastic leukemia (ALL) is the first neoplasm where the assessment of early response to therapy by minimal residual disease (MRD) monitoring has proven to be a fundamental tool to guide therapeutic choices. The most standardized methods to study MRD in ALL are multi-parametric flow cytometry (MFC) and polymerase chain reaction (PCR) amplification-based methods. Emerging technologies hold the promise to improve MRD detection in ALL patients. Moreover, novel therapies, such as monoclonal antibodies, bispecific T-cell engagers, and chimeric antigen receptor T cells (CART) represent exciting advancements in the management of B-cell precursor (BCP)-ALL. Aims: Through a review of the literature and in house data, we analyze the current status of MRD assessment in ALL to better understand how some of its limitations could be overcome by emerging molecular technologies. Furthermore, we highlight the future role of MRD monitoring in the context of personalized protocols, taking into account the genetic complexity in ALL. Results and Conclusions: Molecular rearrangements (gene fusions and immunoglobulin and T-cell receptor-IG/TR gene rearrangements) are widely used as targets to detect residual leukemic cells in ALL patients. The advent of novel techniques, namely next generation flow cytometry (NGF), digital-droplet-PCR (ddPCR), and next generation sequencing (NGS) appear important tools to evaluate MRD in ALL, since they have the potential to overcome the limitations of standard approaches. It is likely that in the forthcoming future these techniques will be incorporated in clinical trials, at least at decisional time points. Finally, the advent of new powerful compounds is further increasing MRD negativity rates, with benefits in long-term survival and a potential reduction of therapy-related toxicities. However, the prognostic relevance in the setting of novel immunotherapies still needs to be evaluated.
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Affiliation(s)
- Irene Della Starza
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy.,GIMEMA Foundation, Rome, Italy
| | - Sabina Chiaretti
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Maria S De Propris
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Loredana Elia
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Marzia Cavalli
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Lucia A De Novi
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Roberta Soscia
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Monica Messina
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Antonella Vitale
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
| | - Anna Guarini
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy.,Department of Molecular Medicine, Sapienza University of Rome, Rome, Italy
| | - Robin Foà
- Hematology, Department of Translational and Precision Medicine, Sapienza University of Rome, Rome, Italy
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25
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Berry NK, Scott RJ, Rowlings P, Enjeti AK. Clinical use of SNP-microarrays for the detection of genome-wide changes in haematological malignancies. Crit Rev Oncol Hematol 2019; 142:58-67. [PMID: 31377433 DOI: 10.1016/j.critrevonc.2019.07.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/18/2019] [Accepted: 07/18/2019] [Indexed: 12/17/2022] Open
Abstract
Single nucleotide polymorphism (SNP) microarrays are commonly used for the clinical investigation of constitutional genomic disorders; however, their adoption for investigating somatic changes is being recognised. With increasing importance being placed on defining the cancer genome, a shift in technology is imperative at a clinical level. Microarray platforms have the potential to become frontline testing, replacing or complementing standard investigations such as FISH or karyotype. This 'molecular karyotype approach' exemplified by SNP-microarrays has distinct advantages in the investigation of several haematological malignancies. A growing body of literature, including guidelines, has shown support for the use of SNP-microarrays in the clinical laboratory to aid in a more accurate definition of the cancer genome. Understanding the benefits of this technology along with discussing the barriers to its implementation is necessary for the development and incorporation of SNP-microarrays in a clinical laboratory for the investigation of haematological malignancies.
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Affiliation(s)
- Nadine K Berry
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, Australia; Department of Molecular Medicine, NSW Health Pathology, Newcastle, New South Wales, Australia.
| | - Rodney J Scott
- School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, Australia; Department of Molecular Medicine, NSW Health Pathology, Newcastle, New South Wales, Australia
| | - Philip Rowlings
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University Newcastle, New South Wales, Australia
| | - Anoop K Enjeti
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University Newcastle, New South Wales, Australia
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26
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Hamadeh L, Enshaei A, Schwab C, Alonso CN, Attarbaschi A, Barbany G, den Boer ML, Boer JM, Braun M, Dalla Pozza L, Elitzur S, Emerenciano M, Fechina L, Felice MS, Fronkova E, Haltrich I, Heyman MM, Horibe K, Imamura T, Jeison M, Kovács G, Kuiper RP, Mlynarski W, Nebral K, Ivanov Öfverholm I, Pastorczak A, Pieters R, Piko H, Pombo-de-Oliveira MS, Rubio P, Strehl S, Stary J, Sutton R, Trka J, Tsaur G, Venn N, Vora A, Yano M, Harrison CJ, Moorman AV. Validation of the United Kingdom copy-number alteration classifier in 3239 children with B-cell precursor ALL. Blood Adv 2019; 3:148-157. [PMID: 30651283 PMCID: PMC6341196 DOI: 10.1182/bloodadvances.2018025718] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/06/2018] [Indexed: 12/19/2022] Open
Abstract
Genetic abnormalities provide vital diagnostic and prognostic information in pediatric acute lymphoblastic leukemia (ALL) and are increasingly used to assign patients to risk groups. We recently proposed a novel classifier based on the copy-number alteration (CNA) profile of the 8 most commonly deleted genes in B-cell precursor ALL. This classifier defined 3 CNA subgroups in consecutive UK trials and was able to discriminate patients with intermediate-risk cytogenetics. In this study, we sought to validate the United Kingdom ALL (UKALL)-CNA classifier and reevaluate the interaction with cytogenetic risk groups using individual patient data from 3239 cases collected from 12 groups within the International BFM Study Group. The classifier was validated and defined 3 risk groups with distinct event-free survival (EFS) rates: good (88%), intermediate (76%), and poor (68%) (P < .001). There was no evidence of heterogeneity, even within trials that used minimal residual disease to guide therapy. By integrating CNA and cytogenetic data, we replicated our original key observation that patients with intermediate-risk cytogenetics can be stratified into 2 prognostic subgroups. Group A had an EFS rate of 86% (similar to patients with good-risk cytogenetics), while group B patients had a significantly inferior rate (73%, P < .001). Finally, we revised the overall genetic classification by defining 4 risk groups with distinct EFS rates: very good (91%), good (81%), intermediate (73%), and poor (54%), P < .001. In conclusion, the UKALL-CNA classifier is a robust prognostic tool that can be deployed in different trial settings and used to refine established cytogenetic risk groups.
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Affiliation(s)
- Lina Hamadeh
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, United Kingdom
| | - Amir Enshaei
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, United Kingdom
| | - Claire Schwab
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, United Kingdom
| | - Cristina N Alonso
- Hematology-Oncology Department, Hospital de Pediatría "Prof. Dr. J. P. Garrahan," Buenos Aires, Argentina
| | - Andishe Attarbaschi
- Department of Pediatric Hematology and Oncology, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Gisela Barbany
- Department of Molecular Medicine and Surgery, Clinical Genetics Section, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | | | - Judith M Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Marcin Braun
- Department of Pathology, Medical University of Lodz, Lodz, Poland
| | - Luciano Dalla Pozza
- Cancer Center for Children, Sydney Childrens Hospital Network, Westmead, NSW, Australia
| | - Sarah Elitzur
- Pediatric Hematology Oncology, Schneider Children's Medical Center, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Mariana Emerenciano
- Division of Clinical Research, Research Centre, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Larisa Fechina
- Regional Children's Hospital 1, Ekaterinburg, Russia
- Research Institute of Medical Cell Technologies, Ekaterinburg, Russia
| | - Maria Sara Felice
- Hematology-Oncology Department, Hospital de Pediatría "Prof. Dr. J. P. Garrahan," Buenos Aires, Argentina
| | - Eva Fronkova
- Childhood Leukaemia Investigation, Prague, Czech Republic
- Department of Paediatric Haematology/Oncology, 2nd Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Irén Haltrich
- 2nd Department of Paediatrics, Semmelweis University, Budapest, Hungary
| | - Mats M Heyman
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Keizo Horibe
- Clinical Research Center, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Toshihiko Imamura
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Marta Jeison
- Cancer Cytogenetic Laboratory, Schneider Children's Medical Center of Israel, Petah Tikva, Israel
| | - Gábor Kovács
- 2nd Department of Paediatrics, Semmelweis University, Budapest, Hungary
| | - Roland P Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Karin Nebral
- Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Ingegerd Ivanov Öfverholm
- Department of Molecular Medicine and Surgery, Clinical Genetics Section, Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Agata Pastorczak
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Dutch Childhood Oncology Group, Utrecht, The Netherlands
| | - Henriett Piko
- 1st Department of Medicine, Semmelweis University, Budapest, Hungary
| | - Maria S Pombo-de-Oliveira
- Pediatric Haematology-Oncology Program, Research Centre, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Patricia Rubio
- Hematology-Oncology Department, Hospital de Pediatría "Prof. Dr. J. P. Garrahan," Buenos Aires, Argentina
| | - Sabine Strehl
- Children's Cancer Research Institute, St. Anna Kinderkrebsforschung, Vienna, Austria
| | - Jan Stary
- Department of Paediatric Haematology/Oncology, 2nd Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Rosemary Sutton
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia; and
| | - Jan Trka
- Childhood Leukaemia Investigation, Prague, Czech Republic
- Department of Paediatric Haematology/Oncology, 2nd Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
| | - Grigory Tsaur
- Regional Children's Hospital 1, Ekaterinburg, Russia
- Research Institute of Medical Cell Technologies, Ekaterinburg, Russia
| | - Nicola Venn
- Children's Cancer Institute, Lowy Cancer Research Centre, University of New South Wales, Sydney, NSW, Australia; and
| | - Ajay Vora
- Department of Haematology, Great Ormond Street Hospital, London, United Kingdom
| | - Mio Yano
- Department of Pediatrics, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Christine J Harrison
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, United Kingdom
| | - Anthony V Moorman
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle, United Kingdom
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