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Mulet-Lazaro R, Delwel R. Oncogenic Enhancers in Leukemia. Blood Cancer Discov 2024; 5:303-317. [PMID: 39093124 PMCID: PMC11369600 DOI: 10.1158/2643-3230.bcd-23-0211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 06/06/2024] [Accepted: 07/17/2024] [Indexed: 08/04/2024] Open
Abstract
Although the study of leukemogenesis has traditionally focused on protein-coding genes, the role of enhancer dysregulation is becoming increasingly recognized. The advent of high-throughput sequencing, together with a better understanding of enhancer biology, has revealed how various genetic and epigenetic lesions produce oncogenic enhancers that drive transformation. These aberrations include translocations that lead to enhancer hijacking, point mutations that modulate enhancer activity, and copy number alterations that modify enhancer dosage. In this review, we describe these mechanisms in the context of leukemia and discuss potential therapeutic avenues to target these regulatory elements. Significance: Large-scale sequencing projects have uncovered recurrent gene mutations in leukemia, but the picture remains incomplete: some patients harbor no such aberrations, whereas others carry only a few that are insufficient to bring about transformation on their own. One of the missing pieces is enhancer dysfunction, which only recently has emerged as a critical driver of leukemogenesis. Knowledge of the various mechanisms of enhancer dysregulation is thus key for a complete understanding of leukemia and its causes, as well as the development of targeted therapies in the era of precision medicine.
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Affiliation(s)
- Roger Mulet-Lazaro
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands.
- Oncode Institute, Utrecht, the Netherlands.
| | - Ruud Delwel
- Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, the Netherlands.
- Oncode Institute, Utrecht, the Netherlands.
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Østergaard A, Boer JM, van Leeuwen FN, Pieters R, Den Boer ML. IKZF1 in acute lymphoblastic leukemia: the rise before the fall? Leuk Lymphoma 2024:1-11. [PMID: 39210599 DOI: 10.1080/10428194.2024.2396046] [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: 04/09/2024] [Revised: 07/23/2024] [Accepted: 08/15/2024] [Indexed: 09/04/2024]
Abstract
Acute lymphoblastic leukemia (ALL) is the most common malignancy in children and adolescents and in recent decades, the survival rates have risen to >90% in children largely due the introduction of risk adapted therapy. Therefore, knowledge of factors influencing risk of relapse is important. The transcription factor IKAROS is a regulator of lymphocyte development and alterations of its coding gene, IKZF1, are frequent in ALL and are associated with higher relapse risk. This concise review will discuss the normal function of IKAROS together with the effect of gene alterations in ALL such as relieved energy restriction and altered response to anti-leukemic drugs. Besides the biology, the clinical impact of gene alterations in the different subtypes of ALL will be discussed. Finally, possibilities for treating ALL with IKZF1 alterations will be considered including novel therapies like cell signaling inhibitors and immunotherapy.
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Affiliation(s)
- Anna Østergaard
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Judith M Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | - Rob Pieters
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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Meng Z, Zheng H, Liu Y, Guo X, Chu S, Zhou W, Li Y, Bai J, Zhang L, Li L. Prognostic significance of CRLF2 in patients with acute lymphoblastic leukemia: a meta-analysis and systematic review. Ann Hematol 2024:10.1007/s00277-024-05667-2. [PMID: 39167182 DOI: 10.1007/s00277-024-05667-2] [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: 12/27/2023] [Accepted: 02/15/2024] [Indexed: 08/23/2024]
Abstract
The association between cytokine receptor-like factor 2 (CRLF2) and clinical outcomes in acute lymphoblastic leukemia (ALL) has been a topic of ongoing debate, with divergent findings. This article intended to investigate the influence of CRLF2 alterations on ALL prognosis. Following the PRISMA 2020 guidelines, this meta-analysis was conducted. Hazard ratio (HR) values and confidence intervals (CIs) were the primary statistical measures used. Data heterogeneity was judged using the chi-square test and I2 statistic. Publication bias was appraised with funnel plots, Begg's test, and Egger's test. 16 studies with 6771 patients were finally screened out. CRLF2 over-expression (CRLF2 OE) was associated with poorer event-free survival (EFS) (HR = 1.70, 95% CI = 1.18-2.44, P = 0.004) and relapse-free survival (RFS) (HR = 1.70, 95% CI = 1.28-2.24, P = 0.000) in pediatric ALL. Patients with CRLF2-deregulation (CRLF2-d), also known as CRLF2 rearrangement, exhibited shorter overall survival (OS) (HR = 2.22, 95% CI = 1.49-3.32, P = 0.000), EFS (HR = 1.93, 95% CI = 1.43-2.60, P = 0.000), and RFS (HR = 2.2, 95% CI = 1.53-3.18, P = 0.000) compared to those without CRLF2-d. Subgroup analysis of multivariate HRs and corresponding CIs indicated that childhood with CRLF2 OE had a shorter RFS (HR = 1.70, 95% CI = 1.28-2.24, P = 0.006), and CRLF2-d was identified as an independent prognostic biomarker for OS (HR = 2.22, 95% CI = 1.49-3.32, P = 0.000), EFS (HR = 1.95, 95% CI = 1.44-2.64, P = 0.000), and RFS (HR = 2.2, 95% CI = 1.53-3.18, P = 0.000) in pediatric ALL patients. Both CRLF2 OE and CRLF2-d are associated with poor prognosis in ALL patients.
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Affiliation(s)
- Zilu Meng
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China
| | - Hanxue Zheng
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China
| | - Yang Liu
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China
| | - Xiaojia Guo
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China
| | - Songlin Chu
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China
| | - Wen Zhou
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China
| | - Yanhong Li
- Key Laboratory of the Hematology of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Jun Bai
- Key Laboratory of the Hematology of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730000, Gansu, China
| | - Liansheng Zhang
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China.
- Key Laboratory of the Hematology of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730000, Gansu, China.
| | - Lijuan Li
- Department of Hematology, The Second Hospital of Lanzhou University, Lanzhou University, No.82, Cuiyingmen, Chengguan District, Lanzhou, 730030, Gansu Province, China.
- Key Laboratory of the Hematology of Gansu Province, The Second Hospital of Lanzhou University, Lanzhou University, Lanzhou, 730000, Gansu, China.
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Iacobucci I, Papayannidis C. SOHO State of the Art Updates and Next Questions | Approach to BCR::ABL1-Like Acute Lymphoblastic Leukemia. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2024:S2152-2650(24)00296-9. [PMID: 39217000 DOI: 10.1016/j.clml.2024.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2024] [Accepted: 08/06/2024] [Indexed: 09/04/2024]
Abstract
Philadelphia-like (Ph-like) or BCR::ABL1-like acute lymphoblastic leukemia (ALL) is a common high-risk subtype of B-cell precursor ALL (B-ALL) characterized by a diverse range of genetic alterations that challenge diagnose and converge on distinct kinase and cytokine receptor-activated gene expression profiles, resembling those from BCR::ABL1-positive ALL from which its nomenclature. The presence of kinase-activating genetic drivers has prompted the investigation in preclinical models and clinical settings of the efficacy of tyrosine kinase inhibitor (TKI)-based treatments. This was further supported by an inadequate response to conventional chemotherapy, high rates of induction failure and persistent measurable residual disease (MRD) positivity, which translate in lower survival rates compared to other B-ALL subtypes. Therefore, innovative approaches are underway, including the integration of TKIs with frontline regimens and the early introduction of immunotherapy strategies (monoclonal antibodies, T-cell engagers, drug-conjugates, and CAR-T cells). Allogeneic hematopoietic cell transplantation (HSCT) is currently recommended for adult BCR::ABL1-like ALL patients in first complete remission. However, the incorporation of novel therapies, a more accurate diagnosis and a more sensitive MRD assessment may modify the risk stratification and the indication for transplant in these patients.
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Affiliation(s)
- Ilaria Iacobucci
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN, USA.
| | - Cristina Papayannidis
- IRCCS Azienda Ospedaliero-Universitaria di Bologna, Istituto di Ematologia Seragnoli, Bologna, Italy
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He GQ, Lei YP, Huang DW, Gao J, Yang R. Philadelphia chromosome-like acute lymphoblastic leukemia with concomitant rearrangements of CRLF2 and ABL1: a pediatric case report. BMC Pediatr 2024; 24:517. [PMID: 39127642 PMCID: PMC11316372 DOI: 10.1186/s12887-024-04991-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 08/01/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND BCR::ABL1-like or Philadelphia chromosome-like (Ph-like) acute lymphoblastic leukemia (ALL) was first reported in 2009. Ph-like ALL is characterized by gene signature similar to Philadelphia chromosome ALL, but without BCR::ABL1 fusions. Molecularly, Ph-like ALL is divided into seven categories, with CRLF2 and ABL-class rearrangements being the two most common subtypes, exhibiting alterations in distinct downstream signaling cascades. CASE PRESENTATION We report a rare case of pediatric Ph-like ALL with concomitant CRLF2 and ABL1 rearrangements. CRLF2 was fused with P2RY8, its most common fusion partner, whereas ABL1 was fused with MYO18B, a novel fusion partner that has not been previously reported. The 4-year-old female patient was treated using the national multicenter CCCG-ALL-2020 protocol with the addition of dasatinib at the end of induction when ABL1 rearrangement was confirmed by RNA-seq. Morphologically and molecularly, the patient remained in continuous remission until the last follow-up. To the best of our knowledge, this is the first case of Ph-like ALL harboring two distinct rearrangement categories. CONCLUSIONS Our results identified that ABL1 rearrangement and CRLF2 rearrangement can coexist. The application of FISH, whole transcription sequencing, PCR can help us to have a more comprehensive understanding of ALL cytogenetics and molecular biology. Further studies are needed to explore the role of targeted therapies in such rare clinical scenarios.
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Affiliation(s)
- Guo-Qian He
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Ministry of Education, Sichuan University, Chengdu, China
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yu-Peng Lei
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Ministry of Education, Sichuan University, Chengdu, China
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Duo-Wen Huang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Ministry of Education, Sichuan University, Chengdu, China
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Ju Gao
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Ministry of Education, Sichuan University, Chengdu, China
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Rong Yang
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, West China Second University Hospital, Ministry of Education, Sichuan University, Chengdu, China.
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.
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Hu X, Wang Z, Qin Y, Xu J, Xu N, Wang Q, Lin R, Zhao K, Zhou H, Xuan L, Yu S, Liu Q. Allogeneic haematopoietic stem cell transplantation might overcome the poor prognosis of adolescents and adult patients with T-lineage acute lymphoblastic leukaemia and CDKN2 deletion. Bone Marrow Transplant 2024; 59:1146-1153. [PMID: 38769349 DOI: 10.1038/s41409-024-02306-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 04/28/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024]
Abstract
This study delves into the clinical implications of cyclin-dependent kinase inhibitor 2 (CDKN2) deletion in adult T-lineage acute lymphoblastic leukemia (T-ALL). Among 241 patients included in this study, 57 had CDKN2 deletion and 184 had CDKN2 wild-type (WT), and 165 underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) and 76 did not undergo allo-HSCT. CDKN2 deletion correlated with higher white blood cell count, more high-risk diseases, and complex karyotype. The 5-year overall survival (OS) was 36.8% and 58.2% (P < 0.001), 5-year disease-free survival (DFS) was 47.1% and 59.3% (P = 0.018), and 5-year cumulative incidence of relapse (CIR) was 33.7% and 22.3% (P = 0.019) in patients with CDKN2 deletion and WT, respectively. Multivariate analysis identified CDKN2 deletion as an independent adverse prognostic factor for OS (HR 2.11, P = 0.003). In the CDKN2 deletion subgroup, landmark analysis showed that the 5-year OS was 56.7% and 19% (P = 0.002) for patients who underwent allo-HSCT and those who did not, respectively. And multivariate analysis confirmed the beneficial role of allo-HSCT in OS (HR 0.23, P < 0.001). In conclusion, CDKN2 deletion was associated with a poor prognosis in adult T-ALL, and allo-HSCT might be beneficial for this population.
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Affiliation(s)
- Xiaoshan Hu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Department of Medical Oncology, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Zhixiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Yuting Qin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Jun Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Na Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Qiang Wang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Ren Lin
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Ke Zhao
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Hongsheng Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Li Xuan
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China
| | - Sijian Yu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China.
| | - Qifa Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China.
- Clinical Medical Research Center of Hematology Diseases of Guangdong Province, Guangzhou, China.
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Zhang Z, Jing Y, Chen B, Zhang H, Liu T, Dong S, Zhang L, Yan X, Yang S, Chen L, Lin Y, Ru K. The application of targeted RNA sequencing for the analysis of fusion genes, gene mutations, IKZF1 intragenic deletion, and CRLF2 overexpression in acute lymphoblastic leukemia. Int J Lab Hematol 2024; 46:670-677. [PMID: 38553845 DOI: 10.1111/ijlh.14269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/07/2024] [Indexed: 07/04/2024]
Abstract
INTRODUCTION Acute lymphoblastic leukemia (ALL) is characterized by highly genetic heterogeneity, owing to recurrent fusion genes, gene mutations, intragenic deletion, and gene overexpression, which poses significant challenges in clinical detection. RNA sequencing (RNA-seq) is a powerful tool for detecting multiple genetic abnormalities, especially cryptic gene rearrangements, in a single test. METHODS Sixty samples (B-ALL, n = 49; T-ALL, n = 9; mixed phenotype acute leukemia (MPAL), n = 2) and 20 controls were analyzed by targeted RNA-seq panel of 507 genes developed by our lab. Of these, 16 patients were simultaneously analyzed for gene mutations at the DNA level using a next-generation sequencing panel of 51 genes. Fusion genes, CRLF2 expression, and IKZF1 intragenic deletion were also detected by reverse transcription-polymerase chain reaction (RT-PCR). Karyotype analysis was performed using the R-banding and G-banding technique on bone marrow cells after 24 hours of culture. Partial fusion genes were analyzed using fluorescence in situ hybridization (FISH). RESULTS Compared with the results of Karyotype analysis, FISH, and RT-PCR, the detection rate of fusion genes by targeted RNA-seq increased from 48.3% to 58.3%, and six unexpected fusion genes were discovered, along with one rare isoform of IKZF1 intragenic deletion (IK10). The DNA sequencing analysis of 16 ALL patients revealed that 96.2% (25/26) of gene mutations identified at the DNA level were also detectable at the RNA level, except for one mutation with a low variant allele fraction. The detection of CRLF2 overexpression exhibited complete concordance between RT-PCR and RNA-seq. CONCLUSION The utilization of RNA-seq enables the identification of clinically significant genetic abnormalities that may go undetected through conventional detection methods. Its robust analytical performance might bring great application value for clinical diagnosis, prognosis, and therapy in ALL.
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Affiliation(s)
- Zhenyu Zhang
- Department of Pathology and Lab Medicine, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
| | - Yu Jing
- Department of Haematology, The Fifth Medical centre of Chinese PLA General Hospital, Beijing, China
| | - Bin Chen
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Hong Zhang
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Tuo Liu
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Shuran Dong
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Lei Zhang
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Xiaoyan Yan
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Shaobin Yang
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Long Chen
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Yani Lin
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
| | - Kun Ru
- Department of Pathology and Lab Medicine, Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of AI-aided Hematopathology Diagnosis, Tianjin, China
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Enshaei A, Joy M, Butler E, Kirkwood AA, Messina M, Pavoni C, Morgades M, Harrison CJ, Foà R, Ribera JM, Chiaretti S, Bassan R, Fielding AK, Moorman AV. A robust and validated integrated prognostic index for defining risk groups in adult acute lymphoblastic leukemia: an EWALL collaborative study. Blood Adv 2024; 8:1155-1166. [PMID: 38113467 PMCID: PMC10910126 DOI: 10.1182/bloodadvances.2023011661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 11/08/2023] [Accepted: 11/30/2023] [Indexed: 12/21/2023] Open
Abstract
ABSTRACT Risk stratification is crucial to the successful treatment of acute lymphoblastic leukemia (ALL). Although numerous risk factors have been identified, an optimal prognostic model for integrating variables has not been developed. We used individual patient data from 4 contemporary academic national clinical trials, UKALL14, NILG-ALL10/07, GIMEMA-LAL1913, and PETHEMA-ALL-HR2011, to generate and validate the European Working Group for Adult ALL prognostic index (EWALL-PI), which is based on white blood cell count, genetics, and end of induction minimal residual disease (MRD). Individual patient risk scores were calculated for 778 patients aged 15 to 67 years in complete remission using the validated UKALL-PI formula, applying minor modifications to reflect differences between pediatric and adult ALL. Per-trial analysis revealed that EWALL-PI correlated with relapse and death. Regression analysis revealed that each unit increase in EWALL-PI increased the risk of relapse or death by ∼30% with no evidence of heterogeneity across trials or patient subgroups. EWALL-PI-defined risk models outperformed the stratification algorithms used by each trial. Threshold analysis revealed an EWALL-PI threshold that divided patients with B cell and T cell into standard (EWALL-PI <2.50) and high (EWALL-PI ≥2.50) risk groups, respectively. Per-trial analysis showed that patients at high risk had a significantly increased relapse rate and inferior survival compared with patients with standard risk (subdistribution hazard ratio for relapse, ranged from 1.85 to 3.28; hazard ratio for death, 1.73 to 3.03). Subgroup analysis confirmed the robustness of these risk groups by sex, age, white blood cell count, and lineage. In conclusion, we validated an integrated risk model across 4 independent adult ALL clinical trials, demonstrating its utility defining clinically relevant risk groups.
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Affiliation(s)
- Amir Enshaei
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Melvin Joy
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Ellie Butler
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Amy A. Kirkwood
- Cancer Research UK & UCL Cancer Trials Centre, UCL Cancer Institute, University College London, London, UK
| | - Monica Messina
- Gruppo Italiano Malattie Ematologiche dell'Adulto Foundation, Rome, Italy
| | - Chiara Pavoni
- Unit of Hematology, Azienda Socio-Sanitaria Territoriale Papa Giovanni XXIII, Bergamo, Italy
| | - Mireia Morgades
- Clinical Hematology Department, ICO-Hospital Germans Trias I Pujol, Josep Carreras Research Institute, Badalona, Spain
| | - Christine J. Harrison
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Robin Foà
- Hematology Department of Translational and Precision Medicine, Sapienza University, Rome, Italy
| | - Josep-Maria Ribera
- Clinical Hematology Department, ICO-Hospital Germans Trias I Pujol, Josep Carreras Research Institute, Badalona, Spain
| | - Sabina Chiaretti
- Hematology Department of Translational and Precision Medicine, Sapienza University, Rome, Italy
| | - Renato Bassan
- Complex Operative Unit of Hematology, dell'Angelo Hospital and Santissimi Giovanni and Paolo Hospital, Mestre and Venice, Venezia-Mestre, Italy
| | | | - Anthony V. Moorman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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9
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Alfraih F, Absi A, Abuhaleeqa M, Alghamdi K, Alhuraiji A, Al‐Khabori M, Al‐Shaibani Z, Alzahrani M, Cherif H, Eldadah S, Hanbali A, Motabi IH, Salama H. Management of adult acute lymphoblastic leukemia in the Gulf Cooperation Council (GCC) countries: A consensus report from the GCC Adult ALL Working Group. Cancer Rep (Hoboken) 2024; 7:e1931. [PMID: 38083985 PMCID: PMC10849924 DOI: 10.1002/cnr2.1931] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 10/22/2023] [Accepted: 11/05/2023] [Indexed: 02/12/2024] Open
Abstract
Leukemia burden is growing in the Gulf Council Cooperation (GCC) countries. Nonetheless, there is no unified protocol for managing adult acute lymphoblastic leukemia (ALL) patients in the GCC-countries. Therefore, the GCC Adult-ALL Treaters working group developed this consensus to address the adult-ALL treatment protocols in the GCC-countries and related toxicities' management. Besides, the consensus aimed to highlight the current unmet needs and treatment gaps and provide recommendations to optimize adult-ALL care and patient-centered communication. A three-step modified Delphi method to develop evidence-based recommendations through two-voting rounds and in-between virtual meetings are used in the manuscript development. A 12 experts' panel from five GCC-countries and two international experts were invited to participate in this consensus. This consensus consisted of 35-statements that highlighted the experts' recommendations to optimize ALL adults' care in the first line setting and manage pediatric or pediatric-inspired regimens-related toxicities. Besides, guidance was provided for future research direction and improve patient-centered communication. In conclusion, the adult-ALL management landscape is evolving, and the current evidence highlights better response and survival outcomes with pediatric or pediatric-inspired regiments. Therefore, protocols are needed to optimize the adult-ALL management in the GCC and tailored clinical-trials findings according to the GCC patients' characteristics and local-healthcare infrastructure.
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Affiliation(s)
- Feras Alfraih
- King Faisal Specialist Hospital and Research CentreRiyadhSaudi Arabia
- Al Faisal UniversityRiyadhSaudi Arabia
| | - Ahmed Absi
- Princess Noorah Oncology CenterKing Abdulaziz Medical City, Ministry of National Guard Health AffairsJeddahSaudi Arabia
| | | | | | - Ahmad Alhuraiji
- Department of HematologyKuwait Cancer Control CenterKuwait CityKuwait
| | - Murtadha Al‐Khabori
- Department of Hematology, College of Medicine and Health SciencesSultan Qaboos UniversityMuscatOman
| | - Zeyad Al‐Shaibani
- King Faisal Specialist Hospital and Research CentreMadinahSaudi Arabia
| | - Musa Alzahrani
- Department of Medicine, College of MedicineKing Saud UniversityRiyadhSaudi Arabia
| | - Honar Cherif
- National Center for Cancer Care and ResearchHamad Medical CooperationDohaQatar
| | - Saleem Eldadah
- Princess Noorah Oncology CenterKing Abdulaziz Medical City, Ministry of National Guard Health AffairsJeddahSaudi Arabia
| | - Amr Hanbali
- King Faisal Specialist Hospital and Research CentreRiyadhSaudi Arabia
| | | | - Hind Salama
- King Abdulaziz‐Medical CityRiyadhSaudi Arabia
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10
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Acharya L, Garg A, Rai M, Kshetri R, Grewal US, Dhakal P. Novel chimeric antigen receptor targets and constructs for acute lymphoblastic leukemia: Moving beyond CD19. J Investig Med 2024; 72:32-46. [PMID: 37497999 DOI: 10.1177/10815589231191811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/28/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is the second most common acute leukemia in adults with a poor prognosis with relapsed or refractory (R/R) B-cell lineage ALL (B-ALL). Anti-CD19 chimeric antigen receptor (CAR) T-cell therapy has shown excellent response rates in RR B-ALL, but most patients relapse due to poor persistence of CAR T-cell therapy or other tumor-associated escape mechanisms. In addition, anti-CD19 CAR T-cell therapy causes several serious side effects such as cytokine release syndrome and neurotoxicity. In this review, we will discuss novel CAR targets, CAR constructs, and various strategies to boost CARs for the treatment of RR B-ALL. In addition, we discuss a few novel strategies developed to reduce the side effects of CAR.
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Affiliation(s)
- Luna Acharya
- Division of Hematology, Oncology, and Blood and Marrow Transplantation, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Alpana Garg
- Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Manoj Rai
- Department of Internal Medicine, Oregon Health & Science University, Portland, OR, USA
| | - Rupesh Kshetri
- Department of Internal Medicine, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Udhayvir S Grewal
- Division of Hematology, Oncology, and Blood and Marrow Transplantation, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - Prajwal Dhakal
- Division of Hematology, Oncology, and Blood and Marrow Transplantation, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
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11
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Tueur G, Quessada J, De Bie J, Cuccuini W, Toujani S, Lefebvre C, Luquet I, Michaux L, Lafage-Pochitaloff M. Cytogenetics in the management of B-cell acute lymphoblastic leukemia: Guidelines from the Groupe Francophone de Cytogénétique Hématologique (GFCH). Curr Res Transl Med 2023; 71:103434. [PMID: 38064905 DOI: 10.1016/j.retram.2023.103434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 10/20/2023] [Accepted: 11/22/2023] [Indexed: 12/26/2023]
Abstract
Cytogenetic analysis is mandatory at initial assessment of B-cell acute lymphoblastic leukemia (B-ALL) due to its diagnostic and prognostic value. Results from chromosome banding analysis and complementary FISH are taken into account in therapeutic protocols and further completed by other techniques (RT-PCR, SNP-array, MLPA, NGS, OGM). Indeed, new genomic entities have been identified by NGS, mostly RNA sequencing, such as Ph-like ALL that can benefit from targeted therapy. Here, we have attempted to establish cytogenetic guidelines by reviewing the most recent published data including the novel 5th World Health Organization and International Consensus Classifications. We also focused on newly described cytogenomic entities and indicate alternative diagnostic tools such as NGS technology, as its importance is vastly increasing in the diagnostic setting.
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Affiliation(s)
- Giulia Tueur
- Laboratoire d'hématologie, Hôpital Avicenne, AP-HP, Bobigny 93000, France
| | - Julie Quessada
- Laboratoire de Cytogénétique Hématologique, Département d'Hématologie, CHU Timone, APHM, Aix Marseille Université, Marseille 13005, France; CRCM, Inserm UMR1068, CNRS UMR7258, Aix Marseille Université U105, Institut Paoli Calmettes, Marseille 13009, France
| | - Jolien De Bie
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven 3000, Belgium
| | - Wendy Cuccuini
- Laboratoire d'Hématologie, Unité de Cytogénétique, Hôpital Saint-Louis, AP-HP, Paris 75010, France
| | - Saloua Toujani
- Service de cytogénétique et biologie cellulaire, CHU de Rennes, Rennes 35033, France
| | - Christine Lefebvre
- Unité de Génétique des Hémopathies, Service d'Hématologie Biologique, CHU Grenoble Alpes, Grenoble 38000, France
| | - Isabelle Luquet
- Laboratoire d'Hématologie, CHU Toulouse (IUCT-O), Toulouse 31000, France
| | - Lucienne Michaux
- Center for Human Genetics, University Hospitals Leuven, Herestraat 49, Leuven 3000, Belgium; Katholieke Universiteit Leuven, Leuven 3000, Belgium
| | - Marina Lafage-Pochitaloff
- Laboratoire de Cytogénétique Hématologique, Département d'Hématologie, CHU Timone, APHM, Aix Marseille Université, Marseille 13005, France.
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12
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González-Arreola RM, García-Romero A, Magaña-Torres MT, González-García JR. A novel approach for direct detection of the IGH::CRLF2 gene fusion by fluorescent in situ hybridization. Mol Cytogenet 2023; 16:19. [PMID: 37574565 PMCID: PMC10423412 DOI: 10.1186/s13039-023-00652-2] [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: 06/06/2023] [Accepted: 07/25/2023] [Indexed: 08/15/2023] Open
Abstract
BACKGROUND High expression of the Cytokine Receptor-Like Factor 2 (CRLF2) gene has been observed in patients with acute lymphoblastic leukemia BCR-ABL1-like subtype. Currently, there is no commercial system available for the direct detection of the IGH::CRLF2 fusion by fluorescent in situ hybridization (FISH), as there are for many other leukemia-related gene fusions. In an effort to verify the IGH::CRLF2 fusion, some researchers prepare home-grown FISH probes from bacterial artificial chromosome clones flanking the IGH and CRLF2 genes, which is the best alternative to confirm the fusion, however difficult to reproduce in most cytogenetic laboratories. RESULTS For the direct observation of the IGH::CRLF2 gene fusion we designed a methodological approach requiring the two commercially available IGH and CRLF2 break-apart probes. CONCLUSIONS Our methodological approach allows direct visualization of the IGH::CRLF2 gene fusion and has the potential to be used for identification of other gene fusions.
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Affiliation(s)
- Rosa María González-Arreola
- Doctorado en Genética Humana, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco Mexico
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, CIBO-IMSS, Sierra Mojada #800, Colonia Independencia, CP 44340 Guadalajara, Jalisco Mexico
| | - Adriana García-Romero
- Doctorado en Genética Humana, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco Mexico
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, CIBO-IMSS, Sierra Mojada #800, Colonia Independencia, CP 44340 Guadalajara, Jalisco Mexico
| | - María Teresa Magaña-Torres
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, CIBO-IMSS, Sierra Mojada #800, Colonia Independencia, CP 44340 Guadalajara, Jalisco Mexico
| | - Juan Ramón González-García
- División de Genética, Centro de Investigación Biomédica de Occidente, Instituto Mexicano del Seguro Social, CIBO-IMSS, Sierra Mojada #800, Colonia Independencia, CP 44340 Guadalajara, Jalisco Mexico
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13
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Wang J, Sun K, Chen WM, Wang X, Li LD, Hao Y, Xu N, Jiang H, Xu LP, Wang Y, Zhang XH, Huang XJ, Jiang Q, Qin YZ. The prognostic significance of CRLF2 expression at diagnosis in adult Ph-negative B-cell precursor acute lymphoblastic leukemia. Leuk Lymphoma 2023; 64:698-706. [PMID: 36642937 DOI: 10.1080/10428194.2022.2164193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The prognostic significance of cytokine receptor like factor 2 (CRLF2) expression at diagnosis in adult B-cell precursor acute lymphoblastic leukemia (BCP-ALL) needs to be clarified. A total of 357 bone marrow samples collected from consecutive adult cases with Ph-negative BCP-ALL at diagnosis retrospectively detected CRLF2 transcript levels by real-time quantitative PCR. Twenty percent was selected as the cutoff value for CRLF2 to divide patients into CRLF2_H and CRLF2_L groups. CRLF2_H was associated with higher WBC count, P2RY8-CRLF2 fusion and IKZF1 deletions (IKZF1del). In both the whole cohort and B-other patients, CRLF2_H independently predicted lower CR rates after induction. Furthermore, CRLF2_H/IKZF1del(+) patients had significantly lower CR, RFS, and OS rates and tended to have lower RFS and OS rates than others in the whole cohort and B-other patients, respectively. Therefore, coexistence of CRLF2_H and IKZF1del at diagnosis predicts poor response and outcome in adult Ph-negative BCP-ALL.
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Affiliation(s)
- Jun Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Kai Sun
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Wen-Min Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Ling-Di Li
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Yue Hao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Nan Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Hao Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Lan-Ping Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Yu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xiao-Hui Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Qian Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Ya-Zhen Qin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
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14
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Wang Y, Li J, Xue TL, Tian S, Yue ZX, Liu SG, Gao C. Clinical, biological, and outcome features of P2RY8-CRLF2 and CRLF2 over-expression in pediatric B-cell precursor acute lymphoblastic leukemia according to the CCLG-ALL 2008 and 2018 protocol. Eur J Haematol 2023; 110:669-679. [PMID: 36814093 DOI: 10.1111/ejh.13948] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 02/16/2023] [Accepted: 02/20/2023] [Indexed: 02/24/2023]
Abstract
OBJECTIVES CRLF2 alterations are associated with B-cell precursor acute lymphoblastic leukemia (BCP-ALL). This study aimed to explore the clinical, biological, and outcome features of pediatric BCP-ALL with CRLF2 abnormalities. METHODS This study enrolled 630 childhood BCP-ALLs treated on CCLG-ALL 2008 or 2018 protocol. P2RY8-CRLF2 was determined by Sanger sequencing and CRLF2 expression was evaluated by qRT-PCR. The correlation between clinical, biological features and outcomes with P2RY8-CRLF2 or CRLF2 over-expression were analyzed. RESULTS P2RY8-CRLF2 and CRLF2 over-expression were found in 3.33% and 5.71% respectively. P2RY8-CRLF2 was associated with male, higher frequency of CD7 expression, high WBC and MRD before consolidation. CRLF2 over-expression showed ETV6-RUNX1- , higher frequency of CD22, CD34, CD66c, CD86 expression, hyperdiploidy and high MRD at early treatment. The lower overall survival (OS) was found in patients with P2RY8-CRLF2 and confined only in IR group. Furthermore, adverse event-free survival and OS of P2RY8-CRLF2 were discovered comparing to those without known fusions or treated on CCLG-ALL 2008 protocol. However, P2RY8-CRLF2 was not confirmed as independent prognostic factors and no prognostic impact of CRLF2 over-expression was found. CONCLUSIONS These findings indicate P2RY8-CRLF2 identifies a subset of patients with specific features and adverse outcomes that could be improved by risk-directed treatment.
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Affiliation(s)
- Ying Wang
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
| | - Jun Li
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
| | - Tian-Lin Xue
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
| | - Shuo Tian
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
| | - Zhi-Xia Yue
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
| | - Shu-Guang Liu
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
| | - Chao Gao
- Hematologic Disease Laboratory, Hematology Center, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics (Capital Medical University), Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing Pediatric Research Institute, Beijing Children's Hospital, National Center for Children's Health, Beijing, People's Republic of China
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15
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Creasey T, Barretta E, Ryan SL, Butler E, Kirkwood AA, Leongamornlert D, Papaemmanuil E, Patrick P, Clifton-Hadley L, Patel B, Menne T, McMillan AK, Harrison CJ, Rowntree CJ, Morley N, Marks DI, Fielding AK, Moorman AV. Genetic and genomic analysis of acute lymphoblastic leukemia in older adults reveals a distinct profile of abnormalities: analysis of 210 patients from the UKALL14 and UKALL60+ clinical trials. Haematologica 2022; 107:2051-2063. [PMID: 34788984 PMCID: PMC9425332 DOI: 10.3324/haematol.2021.279177] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 09/09/2021] [Indexed: 11/09/2022] Open
Abstract
Despite being predominantly a childhood disease, the incidence of acute lymphoblastic leukemia (ALL) has a second peak in adults aged 60 years and over. These older adults fare extremely poorly with existing treatment strategies and very few studies have undertaken a comprehensive genetic and genomic characterization to improve prognosis in this age group. We performed cytogenetic, single nucleotide polymorphism (SNP) array and next-generation sequencing (NGS) analyses on samples from 210 patients aged ≥60 years from the UKALL14 and UKALL60+ clinical trials. BCR-ABL1-positive disease was present in 26% (55/210) of patients, followed by low hypodiploidy/near triploidy in 13% (28/210). Cytogenetically cryptic rearrangements in CRLF2, ZNF384 and MEF2D were detected in 5%, 1% and <1% of patients, respectively. Copy number abnormalities were common and deletions in ALL driver genes were seen in 77% of cases. IKZF1 deletion was present in 51% (40/78) of samples tested and the IKZF1plus profile was identified in over a third (28/77) of cases of B-cell precursor ALL. The genetic good-risk abnormalities high hyperdiploidy (n=2), ETV6-RUNX1 (no cases) and ERG deletion (no cases) were exceptionally rare in this cohort. RAS pathway mutations were seen in 17% (4/23) of screened samples. KDM6A abnormalities, including biallelic deletions, were discovered in 5% (4/78) of SNP arrays and 9% (2/23) of NGS samples, and represent novel, potentially therapeutically actionable lesions using EZH2 inhibitors. Outcome remained poor with 5-year event-free and overall survival rates of 17% and 24%, respectively, across the cohort, indicating a need for novel therapeutic strategies.
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Affiliation(s)
- Thomas Creasey
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne.
| | - Emilio Barretta
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne
| | - Sarra L Ryan
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne
| | - Ellie Butler
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne
| | - Amy A Kirkwood
- Cancer Research UK and UCL Cancer Trials Centre, UCL Cancer Institute University College London
| | | | | | - Pip Patrick
- Cancer Research UK and UCL Cancer Trials Centre, UCL Cancer Institute University College London
| | - Laura Clifton-Hadley
- Cancer Research UK and UCL Cancer Trials Centre, UCL Cancer Institute University College London
| | - Bela Patel
- Department of Haematology, Queen Mary University of London, London
| | - Tobias Menne
- Department of Haematology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne
| | - Andrew K McMillan
- Department of Haematology, Nottingham University Hospital NHS Trust, Nottingham
| | - Christine J Harrison
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne
| | - Clare J Rowntree
- Department of Haematology, Cardiff And Vale University Health Board, Cardiff
| | - Nick Morley
- Department of Haematology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield
| | - David I Marks
- Department of Haematology, University Hospitals Bristol NHS Foundation Trust, Bristol
| | | | - Anthony V Moorman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne.
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16
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GÖKKAYA B, ATASOY S, ÇIRAKOĞLU A, TARKAN ARGÜDEN Y, KURU RD, YILMAZ Ş, ÖNGÖREN Ş, DEVİREN A. A Preliminary Investigation on the Chromosome Aberrations in Acute Lymphoblastic Leukaemia Using Multiprobe Fluorescence In Situ Hybridization Panel. BEZMIALEM SCIENCE 2022. [DOI: 10.14235/bas.galenos.2021.5638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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17
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Improvements in allogeneic hematopoietic cell transplantation outcomes for adults with ALL over the past 3 decades. Blood Adv 2022; 6:4558-4569. [PMID: 35737870 PMCID: PMC9636313 DOI: 10.1182/bloodadvances.2022008032] [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: 05/06/2022] [Accepted: 06/06/2022] [Indexed: 11/20/2022] Open
Abstract
Allogeneic hematopoietic cell transplantation (allo-HCT) is a promising treatment for adult acute lymphoblastic leukemia (ALL), an intractable hematological malignancy. The trends in allo-HCT outcomes over the past 30 years were examined to verify the efficacy of evolving treatment methods and to identify further challenges. We analyzed data from a registry database that included 8467 adult ALL patients who underwent their first allo-HCT between 1990 and 2019. The period was divided into three 10-year intervals for analysis. Five-year overall survival improved from 48.2% to 70.2% in the first complete remission (CR1), from 25.6% to 44.1% in subsequent CR, and from 10.0% to 22.7% in non-CR. Nonrelapse mortality improved over the 3 decades in each disease stage. However, the relapse rate only improved in CR1 every decade (26.3% to 15.9% in CR1, 33.4% to 32.8% in subsequent CR, and 53.6% to 54.8% in non-CR). Although there were continual improvements in adjusted survival for Philadelphia chromosome (Ph)-positive patients, the improvement was inadequate for Ph− patients with t(4;11), t(8;14), t(14;18), or hypodiploidy. Allo-HCT outcomes for adults with ALL have improved over the past 30 years. Improved outcomes in the future will require more effective prevention of relapse in patients with ALL not in CR1 and in those with high-risk chromosomal abnormalities.
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18
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Hassan NM, Abdellateif MS, Radwan EM, Hameed SA, Desouky EDE, Kamel MM, Gameel AM. Prognostic significance of CRLF2 overexpression and JAK2 mutation in Egyptian pediatric patients with B-precursor acute lymphoblastic leukemia. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2022; 22:e376-e385. [PMID: 34987014 DOI: 10.1016/j.clml.2021.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Revised: 12/03/2021] [Accepted: 12/06/2021] [Indexed: 06/14/2023]
Abstract
BACKGROUND The prognostic significance of cytokine receptor-like factor 2 (CRLF2) overexpression in pediatric B-cell precursor (BCP) acute lymphoblastic leukemia (ALL) is still controversial. We aimed to investigate the role of CRLF2 overexpression and JAK2 mutation in the diagnosis and prognosis of newly diagnosed pediatric B-ALL patients. METHODS CRLF2 expression was assessed by real-time quantitative polymerase chain reaction (PCR) in 115 pediatric patients newly diagnosed with precursor B-ALL patients compared with 24 age- and sex-matched controls. JAK2 R683G mutation status was performed by the qBiomarker Somatic Mutation PCR Assay. RESULTS CRLF2 overexpression was identified in 21 patients (18.3%), while the JAK2 R683G mutant type was found in only in 7 patients (6.1%). There was a significant CRLF2 overexpression in patients with high initial TLC, high blast count in blood, and organomegaly (P .04, 0.005 & 0.05 respectively). No patients with CRLF2 overexpression expressed any recurrent cytogenetic translocations. 4 patients with CRLF2 overexpression showed JAK2 R683G mutation. CRLF2 levels and JAK2 R683G mutation status did not have a significant impact on either overall survival or disease-free survival. CONCLUSION CRLF2 expression was significantly higher in Egyptian precursor B-ALL pediatric patients. CRLF2 overexpression was associated with a number of unfavorable prognostic factors with high tumor load, but was not an adverse independent parameter in pediatric BCP-ALL patients. Some patients with CRLF2 overexpression display JAK2 mutation, which may benefit from targeted therapy by kinase inhibitors.
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Affiliation(s)
- Naglaa M Hassan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mona S Abdellateif
- Cancer Biology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Enas M Radwan
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Sayed Abed Hameed
- Pediatric Oncology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Eman D El Desouky
- Biostatistics and Cancer Epidemiology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Mahmoud M Kamel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt.
| | - Abdallah M Gameel
- Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
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19
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Construction and Validation of Angiogenesis-Related Prognostic Risk Signature to Facilitate Survival Prediction and Biomarker Excavation of Breast Cancer Patients. JOURNAL OF ONCOLOGY 2022; 2022:1525245. [PMID: 35498539 PMCID: PMC9045999 DOI: 10.1155/2022/1525245] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 04/05/2022] [Indexed: 02/06/2023]
Abstract
This study is aimed at exploring the potential mechanism of angiogenesis, a biological process-related gene in breast cancer (BRCA), and constructing a risk model related to the prognosis of BRCA patients. We used multiple bioinformatics databases and multiple bioinformatics analysis methods to complete our exploration in this research. First, we use the RNA-seq transcriptome data in the TCGA database to conduct a preliminary screening of angiogenesis-related genes through univariate Cox curve analysis and then use LASSO regression curve analysis for secondary screening. We successfully established a risk model consisting of seven angiogenesis-related genes in BRCA. The results of ROC curve analysis show that the risk model has good prediction accuracy. We can successfully divide BRCA patients into the high-risk and low-risk groups with significant prognostic differences based on this risk model. In addition, we used angiogenesis-related genes to perform cluster analysis in BRCA patients and successfully divided BRCA patients into three clusters with significant prognostic differences, namely, cluster 1, cluster 2, and cluster 3. Subsequently, we combined the clinical-pathological data for correlation analysis, and there is a significant correlation between the risk model and the patient’s T and stage. Multivariate Cox regression curve analysis showed that the age of BRCA patients and the risk score of the risk model could be used as independent risk factors in the progression of BRCA. In particular, based on this angiogenesis-related risk model, we have drawn a matching nomogram that can predict the 5-, 7-, and 10-year overall survival rates of BRCA patients. Subsequently, we performed a series of pan-cancer analyses of CNV, SNV, OS, methylation, and immune infiltration for this risk model gene and used GDSC data to explore drug sensitivity. Subsequently, to gain insight into the protein expression of these risk model genes in BRCA, we used the immunohistochemical data in the THPA database for verification. The results showed that the protein expressions of IL18, RUNX1, SCG2, and THY1 molecules in BRCA tissues were significantly higher than those in normal breast tissues, while the protein expressions of PF4 and TNFSF12 molecules in BRCA tissues were significantly lower than those in normal breast tissues. Finally, we conducted multiple GSEA analyses to explore the biological pathways these risk model genes can cross in cancer progression. In summary, we believe that this study can provide valuable data and clues for future studies on angiogenesis in BRCA.
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20
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Moorman AV, Barretta E, Butler ER, Ward EJ, Twentyman K, Kirkwood AA, Enshaei A, Schwab C, Creasey T, Leongamornlert D, Papaemmanuil E, Patrick P, Clifton-Hadley L, Patel B, Menne T, McMillan AK, Harrison CJ, Rowntree CJ, Marks DI, Fielding AK. Prognostic impact of chromosomal abnormalities and copy number alterations in adult B-cell precursor acute lymphoblastic leukaemia: a UKALL14 study. Leukemia 2022; 36:625-636. [PMID: 34657128 PMCID: PMC8885405 DOI: 10.1038/s41375-021-01448-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 12/22/2022]
Abstract
Chromosomal abnormalities are established prognostic markers in adult ALL. We assessed the prognostic impact of established chromosomal abnormalities and key copy number alterations (CNA) among 652 patients with B-cell precursor ALL treated on a modern MRD driven protocol. Patients with KMT2A-AFF1, complex karyotype (CK) and low hypodiploidy/near-triploidy (HoTr) had high relapse rates 50%, 60% & 53% and correspondingly poor survival. Patients with BCR-ABL1 had an outcome similar to other patients. JAK-STAT abnormalities (CRLF2, JAK2) occurred in 6% patients and were associated with a high relapse rate (56%). Patients with ABL-class fusions were rare (1%). A small group of patients with ZNF384 fusions (n = 12) had very good survival. CNA affecting IKZF1, CDKN2A/B, PAX5, BTG1, ETV6, EBF1, RB1 and PAR1 were assessed in 436 patients. None of the individual deletions or profiles were associated with survival, either in the cohort overall or within key subgroups. Collectively these data indicate that primary genetic abnormalities are stronger prognostic markers than secondary deletions. We propose a revised UKALL genetic risk classification based on key established chromosomal abnormalities: (1) very high risk: CK, HoTr or JAK-STAT abnormalities; (2) high risk: KMT2A fusions; (3) Tyrosine kinase activating: BCR-ABL1 and ABL-class fusions; (4) standard risk: all other patients.
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Affiliation(s)
- Anthony V Moorman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
| | - Emilio Barretta
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Ellie R Butler
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Eleanor J Ward
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Katie Twentyman
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Amy A Kirkwood
- Cancer Research UK & UCL Cancer Trials Centre, UCL Cancer Institute, University College London, London, UK
| | - Amir Enshaei
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Claire Schwab
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Tom Creasey
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | | | | | - Pip Patrick
- Cancer Research UK & UCL Cancer Trials Centre, UCL Cancer Institute, University College London, London, UK
| | - Laura Clifton-Hadley
- Cancer Research UK & UCL Cancer Trials Centre, UCL Cancer Institute, University College London, London, UK
| | - Bela Patel
- Department of Haematology, Queen Mary University of London, London, UK
| | - Tobias Menne
- Department of Haematology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Andrew K McMillan
- Department of Haematology, Nottingham University Hospital NHS Trust, Nottingham, UK
| | - Christine J Harrison
- Leukaemia Research Cytogenetics Group, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Clare J Rowntree
- Department of Haematology, Cardiff And Vale University Health Board, Cardiff, UK
| | - David I Marks
- Department of Haematology, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
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21
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Fielding AK. JAK-ing up treatment for CRLF2-R ALL. Blood 2022; 139:645-646. [PMID: 35113149 DOI: 10.1182/blood.2021014196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 09/30/2021] [Indexed: 11/20/2022] Open
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22
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Tran TH, Tasian SK. Has Ph-like ALL Superseded Ph+ ALL as the Least Favorable Subtype? Best Pract Res Clin Haematol 2021; 34:101331. [PMID: 34865703 DOI: 10.1016/j.beha.2021.101331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Philadelphia chromosome-like acute lymphoblastic leukemia (Ph-like ALL) is a subset of high-risk B-ALL associated with high relapse risk and inferior clinical outcomes across the pediatric-to-adult age spectrum. Ph-like ALL is characterized by frequent IKZF1 alterations and a kinase-activated gene expression profile similar to that of Philadelphia chromosome-positive (Ph+) ALL, yet lacks the canonical BCR-ABL1 rearrangement. Advances in high-throughput sequencing technologies during the past decade have unraveled the genomic landscape of Ph-like ALL, revealing a diverse array of kinase-activating translocations and mutations that may be amenable to targeted therapies that have set a remarkable precision medicine paradigm for patients with Ph + ALL. Collaborative scientific efforts to identify and characterise Ph-like ALL during the past decade has directly informed current precision medicine trials investigating the therapeutic potential of tyrosine kinase inhibitor-based therapies for children, adolescents, and adults with Ph-like ALL, although the most optimal treatment paradigm for this high-risk group of patients has yet to be established. Herein, we describe the epidemiology, clinical features, and biology of Ph-like ALL, highlight challenges in implementing pragmatic and cost-effective diagnostic algorithms in the clinic, and describe the milieu of treatment strategies under active investigation that strive to decrease relapse risk and improve long-term survival for patients with Ph-like ALL as has been successfully achieved for those with Ph + ALL.
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Affiliation(s)
- Thai Hoa Tran
- Division of Pediatric Hematology-Oncology, Charles-Bruneau Cancer Center, CHU Sainte-Justine, Montreal, QC, Canada; Department of Pediatrics, University of Montreal, Montreal, QC, Canada
| | - Sarah K Tasian
- Division of Oncology and Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA; Department of Pediatrics and Abramson Cancer Center, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA.
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23
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Paietta E, Roberts KG, Wang V, Gu Z, Buck GAN, Pei D, Cheng C, Levine RL, Abdel-Wahab O, Cheng Z, Wu G, Qu C, Shi L, Pounds S, Willman CL, Harvey R, Racevskis J, Barinka J, Zhang Y, Dewald GW, Ketterling RP, Alejos D, Lazarus HM, Luger SM, Foroni L, Patel B, Fielding AK, Melnick A, Marks DI, Moorman AV, Wiernik PH, Rowe JM, Tallman MS, Goldstone AH, Mullighan CG, Litzow MR. Molecular classification improves risk assessment in adult BCR-ABL1-negative B-ALL. Blood 2021; 138:948-958. [PMID: 33895809 PMCID: PMC9069478 DOI: 10.1182/blood.2020010144] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 03/25/2021] [Indexed: 11/20/2022] Open
Abstract
Genomic classification has improved risk assignment of pediatric, but not adult B-lineage acute lymphoblastic leukemia (B-ALL). The international UKALLXII/ECOG-ACRIN E2993 (#NCT00002514) trial accrued 1229 adolescent/adult patients with BCR-ABL1- B-ALL (aged 14 to 65 years). Although 93% of patients achieved remission, 41% relapsed at a median of 13 months (range, 28 days to 12 years). Five-year overall survival (OS) was 42% (95% confidence interval, 39, 44). Transcriptome sequencing, gene expression profiling, cytogenetics, and fusion polymerase chain reaction enabled genomic subtyping of 282 patient samples, of which 264 were eligible for trial, accounting for 64.5% of E2993 patients. Among patients with outcome data, 29.5% with favorable outcomes (5-year OS 65% to 80%) were deemed standard risk (DUX4-rearranged [9.2%], ETV6-RUNX1/-like [2.3%], TCF3-PBX1 [6.9%], PAX5 P80R [4.1%], high-hyperdiploid [6.9%]); 50.2% had high-risk genotypes with 5-year OS of 0% to 27% (Ph-like [21.2%], KMT2A-AFF1 [12%], low-hypodiploid/near-haploid [14.3%], BCL2/MYC-rearranged [2.8%]); 20.3% had intermediate-risk genotypes with 5-year OS of 33% to 45% (PAX5alt [12.4%], ZNF384/-like [5.1%], MEF2D-rearranged [2.8%]). IKZF1 alterations occurred in 86% of Ph-like, and TP53 mutations in patients who were low-hypodiploid (54%) and BCL2/MYC-rearranged (33%) but were not independently associated with outcome. Of patients considered high risk based on presenting age and white blood cell count, 40% harbored subtype-defining genetic alterations associated with standard- or intermediate-risk outcomes. We identified distinct immunophenotypic features for DUX4-rearranged, PAX5 P80R, ZNF384-R/-like, and Ph-like genotypes. These data in a large adult B-ALL cohort treated with a non-risk-adapted approach on a single trial show the prognostic importance of genomic analyses, which may translate into future therapeutic benefits.
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Affiliation(s)
| | - Kathryn G Roberts
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN
| | - Victoria Wang
- Department of Data Science, Dana-Farber Cancer Institute, Boston, MA
| | - Zhaohui Gu
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN
| | - Georgina A N Buck
- Clinical Trial Service Unit, Nuttfield Department of Population Health, Oxford, United Kingdom
| | - Deqing Pei
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN
| | - Cheng Cheng
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN
| | - Ross L Levine
- Human Oncology and Pathogenesis Program-Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Omar Abdel-Wahab
- Human Oncology and Pathogenesis Program-Leukemia Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Zhongshan Cheng
- Centre for Applied Bioinformatics, St Jude Children's Research Hospital, Memphis, TN
| | - Gang Wu
- Centre for Applied Bioinformatics, St Jude Children's Research Hospital, Memphis, TN
| | - Chunxu Qu
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN
| | - Lei Shi
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN
| | - Stanley Pounds
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, TN
| | - Cheryl L Willman
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM
| | - Richard Harvey
- University of New Mexico Comprehensive Cancer Center, Albuquerque, NM
| | - Janis Racevskis
- Department of Oncology, Montefiore Medical Center, Bronx, NY
| | - Jan Barinka
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN
| | - Yanming Zhang
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Gordon W Dewald
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - Rhett P Ketterling
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN
| | - David Alejos
- Department of Oncology, Montefiore Medical Center, Bronx, NY
| | - Hillard M Lazarus
- Department of Medicine, University Hospitals Cleveland Medical Center, Case Western Reserve University, Cleveland, OH
| | - Selina M Luger
- Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA
| | - Letizia Foroni
- Centre for Haematology, Department of Medicine, Imperial College London Hammersmith Hospital, London, United Kingdom
| | - Bela Patel
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | | | - Ari Melnick
- Division of Hematology and Medical Oncology, Department of Medicine, Weill Medical College of Cornell University, New York, NY
| | - David I Marks
- Bristol Haematology and Oncology Centre, Bristol, United Kingdom
| | - Anthony V Moorman
- Leukaemia Research Cytogenetics Group, Newcastle University Translational and Clinical Research Institute, Newcastle-upon-Tyne, United Kingdom
| | | | - Jacob M Rowe
- Department of Hematology, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Martin S Tallman
- Leukemia Service, Memorial Sloan Kettering Cancer Center, Weill Cornell Medical College, New York, NY
| | | | | | - Mark R Litzow
- Division of Hematology, Department of Internal Medicine, Mayo Clinic, Rochester, MN
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24
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Mitchell RJ, Kirkwood AA, Barretta E, Clifton-Hadley L, Lawrie E, Lee S, Leongamornlert D, Marks DI, McMillan AK, Menne TF, Papaemmanuil E, Patel B, Patrick P, Rowntree CJ, Zareian N, Alapi KZ, Moorman AV, Fielding AK. IKZF1 alterations are not associated with outcome in 498 adults with B-precursor ALL enrolled in the UKALL14 trial. Blood Adv 2021; 5:3322-3332. [PMID: 34477813 PMCID: PMC8525226 DOI: 10.1182/bloodadvances.2021004430] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 05/03/2021] [Indexed: 11/20/2022] Open
Abstract
IKZF1 deletions (ΔIKZF1) are commonly detected in B-precursor acute lymphoblastic leukemia (ALL; B-ALL) and are widely assumed to have a significant impact on outcome. We compared the ability of multiplex ligand-dependent probe amplification (MLPA) and polymerase chain reaction (PCR) to detect ΔIKZF1 and to determine the impact on event-free survival of patients with precursor B-ALL aged 23 to 65 years recruited to the completed trial UKALL14 (ISRCTN 66541317). From 655 recruits with BCR-ABL1+ and BCR-ABL1- B-ALL, all available diagnostic DNA samples (76% of the recruited population) were screened by multiplex end point PCR covering 4 deletions: dominant-negative (DN) Δ4-7 or the loss of function Δ2-7, Δ4-8, and Δ2-8 (n = 498), MLPA (n = 436), or by both (n = 420). Although patients with BCR-ABL1- ΔIKZF1 were more likely to have minimal residual disease at the end of induction, we did not find any impact of ΔIKZF1 (including subgroup analysis for DN or loss-of-function lesions) or the IKZF1plus genotype on event-free, overall survival, or relapse risk by univariable or multivariable analyses. Consistent with the technical approach, MLPA not only detected a wider range of deletions than PCR but also failed to detect some PCR-detected lesions. The main difference between our study and others reporting an association between ΔIKZF1 and outcome is the older age of participants in our population. The impact of ΔIKZF1 in ALL may be less marked in an older population of patients. Our study underscores the need for analyses in large, harmonized data sets. This trial was registered at www.clinicaltrials.gov as #NCT01085617.
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Affiliation(s)
| | - Amy A Kirkwood
- Cancer Research UK (CRUK) and University College London (UCL) Cancer Trials Centre, UCL Cancer Institute, UCL, London, United Kingdom and
| | - Emilio Barretta
- Northern Institute for Cancer Research, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom and
| | - Laura Clifton-Hadley
- Cancer Research UK (CRUK) and University College London (UCL) Cancer Trials Centre, UCL Cancer Institute, UCL, London, United Kingdom and
| | - Emma Lawrie
- Cancer Research UK (CRUK) and University College London (UCL) Cancer Trials Centre, UCL Cancer Institute, UCL, London, United Kingdom and
| | | | | | - David I Marks
- United Bristol Healthcare Trust, Bristol, United Kingdom and
| | - Andrew K McMillan
- Centre for Clinical Haematology, Nottingham City Hospital, Nottingham, United Kingdom and
| | - Tobias F Menne
- Newcastle Upon Tyne Hospitals National Health Service (NHS) Foundation Trust, Newcastle upon Tyne, United Kingdom and
| | | | - Bela Patel
- Barts Cancer Institute, The London School of Medicine, Queen Mary University of London, London, United Kingdom; and
| | - Pip Patrick
- Cancer Research UK (CRUK) and University College London (UCL) Cancer Trials Centre, UCL Cancer Institute, UCL, London, United Kingdom and
| | - Clare J Rowntree
- Cardiff and Vale University Health Board (UHB), Wales, United Kingdom
| | | | | | - Anthony V Moorman
- Northern Institute for Cancer Research, University of Newcastle upon Tyne, Newcastle upon Tyne, United Kingdom and
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25
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Podgornik H, Doplihar Kebe A, Klun J, Reberšek K, Šućurović S, Škerget M, Zver S. Recognition of Philadelphia chromosome-like acute lymphoblastic leukemia as part of routine diagnostic work-up. Int J Lab Hematol 2021; 44:142-149. [PMID: 34491616 DOI: 10.1111/ijlh.13698] [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: 06/23/2021] [Revised: 08/10/2021] [Accepted: 08/23/2021] [Indexed: 12/01/2022]
Abstract
INTRODUCTION Philadelphia chromosome (Ph)-like acute lymphoblastic leukemia (ALL) is a biologically and clinically challenging subtype of B-cell ALL which has been incorporated into the 2016 revision of the World Health classification of acute leukemia. It is independently associated with poor outcome. As it can only be reliably detected by expression profiling, it is difficult to diagnose with routine methods. Its recognition has become of greater importance due to prognostication and even more due to the new diagnostic options given by targeted therapies. There is still no standardized diagnostic test enabling its prompt recognition. Here, we introduce our approach how to detect it by combination of widely available techniques. METHODS 179 ALL patients diagnosed in our center during the last 8 years were included. Data on immunophenotype and cytogenetics were used to select patients with potentially Ph-like ALL (65/179). CRLF2 gene rearrangement (CRLF2-r) was tested by FISH in 59/65 patients, and next-generation sequencing was done by Archer FusionPlex ALL kit in 34 patients. TSLPR expression was determined in 20 patients. RESULTS Philadelphia chromosome-like aberrations were confirmed in 9 patients. In 10% of tested samples, CRLF2-r was confirmed. Due to a lack of material, NGS was done only in a half of potentially Ph-like cases. In 10%, other Ph-like fusions were found by NGS. CONCLUSIONS The obtained frequencies, and genetic and patients' characteristics are in concordance with the literature data, ensuring a reliable detection of this challenging ALL subtype. The proposed algorithm allows detection of Ph-like ALL at reasonable cost and acceptable workload.
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Affiliation(s)
- Helena Podgornik
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Ana Doplihar Kebe
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Jurka Klun
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Katarina Reberšek
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Sandra Šućurović
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Matevž Škerget
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Samo Zver
- Department of Hematology, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Medical Faculty, University of Ljubljana, Ljubljana, Slovenia
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26
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Angione SDA, Akalu AY, Gartrell J, Fletcher EP, Burckart GJ, Reaman GH, Leong R, Stewart CF. Fusion Oncoproteins in Childhood Cancers: Potential Role in Targeted Therapy. J Pediatr Pharmacol Ther 2021; 26:541-555. [PMID: 34421403 PMCID: PMC8372856 DOI: 10.5863/1551-6776-26.6.541] [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: 10/09/2019] [Accepted: 01/03/2021] [Indexed: 11/11/2022]
Abstract
Cancer remains the leading cause of death from disease in children. Historically, in contrast to their adult counterparts, the causes of pediatric malignancies have remained largely unknown, with most pediatric cancers displaying low mutational burdens. Research related to molecular genetics in pediatric cancers is advancing our understanding of potential drivers of tumorigenesis and opening new opportunities for targeted therapies. One such area is fusion oncoproteins, which are a product of chromosomal rearrangements resulting in the fusion of different genes. They have been identified as oncogenic drivers in several sarcomas and leukemias. Continued advancement in the understanding of the biology of fusion oncoproteins will contribute to the discovery and development of new therapies for childhood cancers. Here we review the current scientific knowledge on fusion oncoproteins, focusing on pediatric sarcomas and hematologic cancers, and highlight the challenges and current efforts in developing drugs to target fusion oncoproteins.
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27
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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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28
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Safarzadeh Kozani P, Safarzadeh Kozani P, O'Connor RS. In Like a Lamb; Out Like a Lion: Marching CAR T Cells Toward Enhanced Efficacy in B-ALL. Mol Cancer Ther 2021; 20:1223-1233. [PMID: 33903140 PMCID: PMC8285067 DOI: 10.1158/1535-7163.mct-20-1089] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/26/2021] [Accepted: 04/19/2021] [Indexed: 11/16/2022]
Abstract
Combining synthetic biology with adoptive T-cell transfer has led to promising advances in the treatment of relapsed/refractory B-cell acute lymphoblastic leukemia (R/R B-ALL), diffuse large B-cell lymphoma (DLBCL), and mantle cell lymphoma (MCL). Chimeric antigen receptors (CARs) are synthetic receptors that redirect T-cell specificity against cancer. CARs include "built-in" signaling domains that reprogram T-cell metabolism, enhance effector function, and support long-term persistence. Despite their success in blood-based malignancies, relapse can occur in CD19-redirected CAR T-cell therapies for several reasons, including poor engraftment, impaired in vivo proliferation, and T-cell senescence. Herein, we explain how subtle alterations in CAR design may overcome barriers to effective adoptive immunotherapy. We also discuss how the physiochemical properties of the single-chain variable fragment (scFv) affect differentiation and persistence. Moreover, we describe innovative advances in CAR engineering and provide insight into the development of humanized scFvs whose proposed benefits include increased persistence and improved clinical outcomes. Tumor cells can evade CAR T-cell-mediated detection and elimination due to the emergence or presence of CD19-negative leukemic cell subpopulations. We also discuss the opportunities and challenges in targeting other B-ALL-associated antigens. Identifying alternate targets is fundamentally necessary to restore the success of CAR T-cell therapies in CD19-negative patients with B-ALL.
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MESH Headings
- Animals
- Antigens, CD19/immunology
- Antigens, Neoplasm/immunology
- Disease Management
- Genetic Engineering
- Humans
- Immunity
- Immunotherapy, Adoptive/adverse effects
- Immunotherapy, Adoptive/methods
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/diagnosis
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/etiology
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/therapy
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Receptors, Chimeric Antigen/genetics
- Receptors, Chimeric Antigen/immunology
- Research Design
- T-Cell Antigen Receptor Specificity/immunology
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Treatment Outcome
- Tumor Escape/immunology
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Affiliation(s)
- Pouya Safarzadeh Kozani
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
- Student Research Committee, Medical Biotechnology Research Center, School of Nursing, Midwifery, and Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Pooria Safarzadeh Kozani
- Department of Medical Biotechnology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Roddy S O'Connor
- Center for Cellular Immunotherapies, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine of the University of Pennsylvania, Philadelphia, Pennsylvania
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Philadelphia chromosome-negative B-cell acute lymphoblastic leukaemia with kinase fusions in Taiwan. Sci Rep 2021; 11:5802. [PMID: 33707599 PMCID: PMC7952704 DOI: 10.1038/s41598-021-85213-6] [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: 09/11/2020] [Accepted: 02/26/2021] [Indexed: 01/06/2023] Open
Abstract
Philadelphia chromosome-like (Ph-like) acute lymphoblastic leukaemia (ALL), a high-risk subtype characterised by genomic alterations that activate cytokine receptor and kinase signalling, is associated with inferior outcomes in most childhood ALL clinical trials. Half of the patients with Ph-like ALL have kinase rearrangements or fusions. We examined the frequency and spectrum of these fusions using a retrospective cohort of 212 newly diagnosed patients with childhood B-cell ALL. Samples without known chromosomal alterations were subject to multiplex reverse transcription polymerase chain reaction to identify known Ph-like kinase fusions. Immunoglobulin heavy chain locus (IGH) capture and kinase capture were applied to samples without known kinase fusions. We detected known kinase fusions in five of 212 patients, comprising EBF1-PDGFRB, ETV6-ABL1, ZC3HAV1-ABL2, EPOR-IGH, and CNTRL-ABL1. Two patients with P2RY8-CRLF2 were identified. Patients with non-Ph kinase fusions had inferior 5-year event-free survival and overall survival compared with patients with other common genetic alterations. The prevalence of non-Ph kinase fusions in our Taiwanese cohort was lower than that reported in Caucasian populations. Future clinical trials with tyrosine kinase inhibitors may be indicated in Taiwan because of the inferior outcomes for B-cell ALL with kinase fusions.
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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: 17] [Impact Index Per Article: 5.7] [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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31
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Increased Incidence of IKZF1 deletions and IGH-CRLF2 translocations in B-ALL of Hispanic/Latino children-a novel health disparity. Leukemia 2021; 35:2399-2402. [PMID: 33531655 PMCID: PMC8324481 DOI: 10.1038/s41375-021-01133-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 11/12/2020] [Accepted: 01/07/2021] [Indexed: 01/29/2023]
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32
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Hosein Pour Feizi A, Zeinali S, Toporski J, Sheervalilou R, Mehranfar S. Frequency and Correlation of Common Genes Copy Number Alterations in Childhood Acute Lymphoblastic Leukemia with Prognosis. Asian Pac J Cancer Prev 2020; 21:3493-3500. [PMID: 33369444 PMCID: PMC8046302 DOI: 10.31557/apjcp.2020.21.12.3493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Indexed: 11/25/2022] Open
Abstract
Objective: It was shown by genomic profiling that despite no detectable chromosomal abnormalities a proportion of children with pre-B acute lymphoblastic leukemia harbors copy number alterations (CNA) of genes playing role in B-cell development and function. The aim of the study was to determine the frequency of CNA in pediatric acute lymphoblastic leukemia and correlate these findings with clinical outcome. Methods: DNA extracted from peripheral blood or bone marrow at diagnosis/relapse of fifty newly diagnosed children with precursor B-cell acute lymphoblastic leukemia was analyzed for CNA with multiplex ligation-dependent probe amplification. Results: The analysis revealed 76 CNA in 24 patients most frequently found in PAR1 (17%), CDKN2A/B (15.7%) and PAX5 (14.4%) genes. There were significant CNA co-occurrences between PAX5, CDKN2A/B, BTG1, ETV6, PAR1 or XP22 genes, (p<0.020) and the high-risk group. There was a significant correlation between EBF1, RB1, and IKZF1 alterations and bone marrow relapse. Patients with CNA in screened genes are more likely to succumb to their disease except for those with PAR1 or XP22 genes (p<0.050). Conclusion: The multiplex ligation-dependent probe amplification could be considered as an independent diagnostic tool allowing prompt identification of patients at high risk of treatment failure and, subsequently, a more adequate treatment approach.
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Affiliation(s)
| | - Sirous Zeinali
- Department of Molecular Medicine, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran.,Kawsar Human Genetics Research Center, Kawsar Genomics Center, Tehran, Iran
| | - Jacek Toporski
- Department of Clinical Sciences, Pediatric Oncology and Hematology, University of Lund, Lund, Sweden
| | | | - Sahar Mehranfar
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Genetics and Immunology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran.,Social Determinate of Health Research Center, Clinical Research Institute Urmia University of Medical Science, Urmia, Iran
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33
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FPGS relapse-specific mutations in relapsed childhood acute lymphoblastic leukemia. Sci Rep 2020; 10:12074. [PMID: 32694622 PMCID: PMC7374087 DOI: 10.1038/s41598-020-69059-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/06/2020] [Indexed: 11/29/2022] Open
Abstract
Although the cure rate for childhood acute lymphoblastic leukemia (ALL) has exceeded 80% with contemporary therapy, relapsed ALL remains a leading cause of cancer-related death in children. Relapse-specific mutations can be identified by comprehensive genome sequencing and might have clinical significance. Applying whole-exome sequencing to eight triplicate samples, we identified in one patient relapse-specific mutations in the folylpolyglutamate synthetase (FPGS) gene, whose product catalyzes the addition of multiple glutamate residues (polyglutamation) to methotrexate upon their entry into the cells. To determine the prevalence of mutations of the FPGS mutations, and those of two important genes in the thiopurine pathway, NT5C2 and PRPS1, we studied 299 diagnostic and 73 relapsed samples in 372 patients. Three more FPGS mutants were identified in two patients, NT5C2 mutations in six patients, and PRPS1 mutants in two patients. One patient had both NT5C2 and PRPS1 mutants. None of these alterations were detected at diagnosis with a sequencing depth of 1000X, suggesting that treatment pressure led to increased prevalence of mutations during therapy. Functional characterization of the FPGS mutants showed that they directly resulted in decreased enzymatic activity, leading to significant reduction in methotrexate polyglutamation, and therefore likely contributed to drug resistance and relapse in these cases. Thus, besides genomic alterations in thiopurine metabolizing enzymes, the relapse-specific mutations of FPGS represent another critical mechanism of acquired antimetabolite drug resistance in relapsed childhood ALL.
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34
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Richard-Carpentier G, Kantarjian H, Jabbour E. Recent Advances in Adult Acute Lymphoblastic Leukemia. Curr Hematol Malig Rep 2020; 14:106-118. [PMID: 30879177 DOI: 10.1007/s11899-019-00503-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW This article reviews the recent advances in the pathophysiology and management of acute lymphoblastic leukemia (ALL) in adults. RECENT FINDINGS Addition of rituximab to standard chemotherapy improves survival in the frontline treatment of B cell ALL, and measurable residual disease (MRD) is the most important prognostic factor. Tyrosine kinase inhibitors (TKI), particularly ponatinib, in combination with Hyper-CVAD significantly improve outcomes in Ph + ALL challenging the benefit of allogeneic stem cell transplant in first line for these patients. Blinatumomab, inotuzumab ozogamicin, and chimeric antigen receptor (CAR) T cells are better options than chemotherapy alone for the treatment of relapsed or refractory ALL. Combination of these agents with chemotherapy and their incorporation in the frontline setting show promises to improve cure rates of ALL. Development of monoclonal antibodies, CAR T, and potent TKI has improved the outcome of ALL. Advances in our understanding of ALL biology are expected to bring new therapeutic strategies in the upcoming years.
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Affiliation(s)
- Guillaume Richard-Carpentier
- Department of Leukemia, University of Texas, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Box 428, Houston, TX, 77030, USA
| | - Hagop Kantarjian
- Department of Leukemia, University of Texas, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Box 428, Houston, TX, 77030, USA
| | - Elias Jabbour
- Department of Leukemia, University of Texas, MD Anderson Cancer Center, 1515 Holcombe Boulevard, Box 428, Houston, TX, 77030, USA.
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35
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Abstract
Genomic analyses have revolutionized our understanding of the biology of B-progenitor acute lymphoblastic leukemia (ALL). Studies of thousands of cases across the age spectrum have revised the taxonomy of B-ALL by identifying multiple new subgroups with diverse sequence and structural initiating events that vary substantially by age at diagnosis and prognostic significance. There is a growing appreciation of the role of inherited genetic variation in predisposition to ALL and drug responsiveness and of the nature of genetic variegation and clonal evolution that may be targeted for improved diagnostic, risk stratification, disease monitoring, and therapeutic intervention. This review provides an overview of the current state of knowledge of the genetic basis of B-ALL, with an emphasis on recent discoveries that have changed our approach to diagnosis and monitoring.
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Affiliation(s)
- Kathryn G Roberts
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
| | - Charles G Mullighan
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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36
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Brown LM, Lonsdale A, Zhu A, Davidson NM, Schmidt B, Hawkins A, Wallach E, Martin M, Mechinaud FM, Khaw SL, Bartolo RC, Ludlow LEA, Challis J, Brooks I, Petrovic V, Venn NC, Sutton R, Majewski IJ, Oshlack A, Ekert PG. The application of RNA sequencing for the diagnosis and genomic classification of pediatric acute lymphoblastic leukemia. Blood Adv 2020; 4:930-942. [PMID: 32150610 PMCID: PMC7065479 DOI: 10.1182/bloodadvances.2019001008] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Accepted: 02/02/2020] [Indexed: 01/23/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) is the most common childhood malignancy, and implementation of risk-adapted therapy has been instrumental in the dramatic improvements in clinical outcomes. A key to risk-adapted therapies includes the identification of genomic features of individual tumors, including chromosome number (for hyper- and hypodiploidy) and gene fusions, notably ETV6-RUNX1, TCF3-PBX1, and BCR-ABL1 in B-cell ALL (B-ALL). RNA-sequencing (RNA-seq) of large ALL cohorts has expanded the number of recurrent gene fusions recognized as drivers in ALL, and identification of these new entities will contribute to refining ALL risk stratification. We used RNA-seq on 126 ALL patients from our clinical service to test the utility of including RNA-seq in standard-of-care diagnostic pipelines to detect gene rearrangements and IKZF1 deletions. RNA-seq identified 86% of rearrangements detected by standard-of-care diagnostics. KMT2A (MLL) rearrangements, although usually identified, were the most commonly missed by RNA-seq as a result of low expression. RNA-seq identified rearrangements that were not detected by standard-of-care testing in 9 patients. These were found in patients who were not classifiable using standard molecular assessment. We developed an approach to detect the most common IKZF1 deletion from RNA-seq data and validated this using an RQ-PCR assay. We applied an expression classifier to identify Philadelphia chromosome-like B-ALL patients. T-ALL proved a rich source of novel gene fusions, which have clinical implications or provide insights into disease biology. Our experience shows that RNA-seq can be implemented within an individual clinical service to enhance the current molecular diagnostic risk classification of ALL.
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Affiliation(s)
- Lauren M Brown
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - Andrew Lonsdale
- Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Andrea Zhu
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
- Royal Children's Hospital, Parkville, VIC, Australia
| | - Nadia M Davidson
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
| | - Breon Schmidt
- Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Anthony Hawkins
- Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Elise Wallach
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
- Royal Children's Hospital, Parkville, VIC, Australia
| | | | | | - Seong Lin Khaw
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Royal Children's Hospital, Parkville, VIC, Australia
- Walter and Eliza Hall Institute, Parkville, VIC, Australia
| | - Ray C Bartolo
- Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Louise E A Ludlow
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
| | - Jackie Challis
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Ian Brooks
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Vida Petrovic
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Nicola C Venn
- Children's Cancer Institute, University of New South Wales, Sydney, NSW, Australia
| | - Rosemary Sutton
- Children's Cancer Institute, University of New South Wales, Sydney, NSW, Australia
| | - Ian J Majewski
- Walter and Eliza Hall Institute, Parkville, VIC, Australia
- Faculty of Medicine, Dentistry, and Health Sciences, University of Melbourne, Parkville, VIC, Australia; and
| | - Alicia Oshlack
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- School of BioSciences, University of Melbourne, Parkville, VIC, Australia
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
| | - Paul G Ekert
- Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
- Royal Children's Hospital, Parkville, VIC, Australia
- Peter MacCallum Cancer Centre, Melbourne, VIC, Australia
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37
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Carobolante F, Chiaretti S, Skert C, Bassan R. Practical guidance for the management of acute lymphoblastic leukemia in the adolescent and young adult population. Ther Adv Hematol 2020; 11:2040620720903531. [PMID: 32071710 PMCID: PMC6997963 DOI: 10.1177/2040620720903531] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 12/18/2019] [Indexed: 01/22/2023] Open
Abstract
The outstanding therapeutic progress achieved with modern pediatric regimens in
childhood acute lymphoblastic leukemia (ALL) led efforts to explore whether a
similar treatment approach could be equally effective and safe in older
patients, starting initially with older adolescents and young adults (AYA),
variably defined in different studies by an age between 15–18 and 25–39 years.
Several comparative and noncomparative trials of this type have been carried out
during the last two decades, enrolling thousands of patients. Almost without
exception, the new strategy improved patients’ outcomes compared with
traditional adult treatments in B-lineage and T-lineage Philadelphia (Ph)
chromosome-negative B-ALL, while the use of tyrosine kinase inhibitors (TKI) led
to comparative progress in Ph+ ALL, a former high-risk subset more typically
observed in older age groups. At present, highly effective pediatric-based
regimens warrant 5-year survival rates of 60–70% in AYA patients. In view of
these data, the same approach was progressively extended to older patients,
improving the results up to 55 years of age. Issues of treatment compliance and
drug-related toxicity have thus far prevented a comparable therapeutic
advancement in patients aged >55 years. This critical review updates and
summarizes with pertinent examples this global, positive therapeutic change, and
examines how to promote further progress with new targeted therapies that
include novel immuno-therapeutics and other agents developed against the many
molecular dysfunctions detectable in various ALL subsets. Substantial progress
is expected to occur soon, bringing AYA survival figures very close to that of
children, and also to improve the outcome of ALL at all ages.
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Affiliation(s)
| | | | - Cristina Skert
- UOC Ematologia, Ospedale dell'Angelo, Venezia, Mestre, Italy
| | - Renato Bassan
- UOC Ematologia, Ospedale dell'Angelo, Via Paccagnella 11, Venezia, Mestre, 30174, Italy
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38
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Fournier B, Balducci E, Duployez N, Clappier E, Cuccuini W, Arfeuille C, Caye-Eude A, Delabesse E, Bottollier-Lemallaz Colomb E, Nebral K, Chrétien ML, Derrieux C, Cabannes-Hamy A, Dumezy F, Etancelin P, Fenneteau O, Frayfer J, Gourmel A, Loosveld M, Michel G, Nadal N, Penther D, Tigaud I, Fournier E, Reismüller B, Attarbaschi A, Lafage-Pochitaloff M, Baruchel A. B-ALL With t(5;14)(q31;q32); IGH-IL3 Rearrangement and Eosinophilia: A Comprehensive Analysis of a Peculiar IGH-Rearranged B-ALL. Front Oncol 2019; 9:1374. [PMID: 31921638 PMCID: PMC6914849 DOI: 10.3389/fonc.2019.01374] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 11/21/2019] [Indexed: 02/03/2023] Open
Abstract
Background: B-cell acute lymphoblastic leukemia associated with t(5;14)(q31;q32); IGH-IL3 is an exceptional cause of eosinophilia. The IGH enhancer on 14q32 is juxtaposed to the IL3 gene on 5q31, leading to interleukin-3 overproduction and release of mature eosinophils in the blood. Clinical, biological and outcome data are extremely scarce in the literature. Except for eosinophilia, no relevant common feature has been highlighted in these patients. However, it has been classified as a distinct entity in the World Health Organization classification. Cases Presentation: Eight patients with t(5;14)(q31;q32) treated by French or Austrian protocols were retrospectively enrolled. Array comparative genomic hybridization, multiplex ligation-dependent probe amplification or genomic PCR search for IKZF1 deletion were performed in 7. Sixteen patients found through an exhaustive search in the literature were also analyzed. For those 24 patients, median age at diagnosis is 14.3 years with a male predominance (male to female ratio = 5). Eosinophilia-related symptoms are common (neurologic in 26%, thromboembolic in 26% or pulmonary in 50%). Median white blood cells count is high (72 × 109/L) and linked to eosinophilia (median: 32 × 109/L). Peripheral blasts are present at a low level or absent (median: 0 × 109/L; range: 0–37 × 109/L). Bone marrow morphology is marked by a low blast infiltration (median: 42%). We found an IKZF1 deletion in 5 out of 7 analyzable patients Outcome data are available for 14 patients (median follow-up: 28 months): 8 died and 6 are alive in complete remission. Some of these features are concordant with those seen in patients with other IGH-rearranged B-cell acute lymphoblastic leukemias: young age at onset, male sex, low blast count, high incidence of IKZF1 deletion and intermediate prognosis. Conclusion: Based on shared epidemiological and biological features, B-cell acute lymphoblastic leukemia with t(5;14)(q31;q32) is a peculiar subset of IGH-rearranged B-cell acute lymphoblastic leukemia with an intermediate prognosis and particular clinical features related to eosinophilia.
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Affiliation(s)
- Benjamin Fournier
- Department of Pediatric Hematology and Immunology, University Hospital Robert Debré, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Estelle Balducci
- Hematology Laboratory, University Hospital Paul-Brousse, Assistance Publique des Hôpitaux de Paris (APHP), Villejuif, France
| | | | - Emmanuelle Clappier
- Hematology Laboratory, University Hospital Saint-Louis, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Wendy Cuccuini
- Hematology Laboratory, University Hospital Saint-Louis, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Chloé Arfeuille
- Department of Genetics, University Hospital Robert Debré, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Aurélie Caye-Eude
- Department of Genetics, University Hospital Robert Debré, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Eric Delabesse
- Department of Haematology, Institut Universitaire de Cancérologie de Toulouse, CHU de Toulouse, Toulouse, France
| | | | - Karin Nebral
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Vienna, Austria
| | | | | | - Aurélie Cabannes-Hamy
- Teenagers and Young Adults Hematology Unit, University Hospital Saint-Louis, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Florent Dumezy
- Department of Hematology, University Hospital, Lille, France
| | | | - Odile Fenneteau
- Hematology Laboratory, University Hospital Robert Debré, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
| | - Jamile Frayfer
- Department of Hematology, Hospital Saint Faron, Meaux, France
| | - Antoine Gourmel
- Department of Pediatric Oncology, Hematology, Immunology, University Hospital of Amiens, Amiens, France
| | - Marie Loosveld
- Hematology Laboratory, Timone Hospital, Assistance Publique-Hôpitaux de Marseille (APHM), CNRS, INSERM, Centre d'Immunologie de Marseille-Luminy (CIML), Aix Marseille University, Marseille, France
| | - Gérard Michel
- Department of Pediatric Hematology, Aix Marseille University, Marseille, France
| | - Nathalie Nadal
- Laboratory of Cytogenetics, University Hospital of Dijon, Dijon, France
| | - Dominique Penther
- Department of Oncology Genetics, Henri Becquerel Center, Rouen, France
| | | | - Elise Fournier
- Department of Hematology, University Hospital, Lille, France
| | - Bettina Reismüller
- Department of Pediatric Hematology and Oncology, St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Andishe Attarbaschi
- Department of Pediatric Hematology and Oncology, St. Anna Children's Hospital, Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Marina Lafage-Pochitaloff
- Hematological Cytogenetics Laboratory, Timone Hospital-Assistance Publique-Hôpitaux de Marseille (AP-HM), Aix-Marseille University, Groupe Francophone de Cytogénétique Hématologique (GFCH), Marseille, France
| | - André Baruchel
- Department of Pediatric Hematology and Immunology, University Hospital Robert Debré, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France.,Institut Universitaire d'Hématologie, EA-3518, University Hospital Saint-Louis, Assistance Publique des Hôpitaux de Paris (APHP), Paris, France
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Abstract
Despite high cure rates in children, acute lymphoblastic leukemia (ALL) remains a leading cause of cancer death in the young, and the likelihood of treatment failure increases with age. With the exception of tyrosine kinase inhibitors, there have been few advances in repurposing or developing new therapeutic approaches tailored to vulnerabilities of ALL subtypes or individual cases. Large-scale genome profiling studies conducted over the last decade promise to improve ALL outcomes by refining risk stratification and modulation of therapeutic intensity, and by identifying new targets and pathways for immunotherapy. Many of these approaches have been validated in preclinical models and now merit testing in clinical trials. This review discusses the advances in our understanding of the genomic taxonomy and ontogeny of B-progenitor ALL, with an emphasis on those discoveries of clinical importance.
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40
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Ribera J, Zamora L, Morgades M, Vives S, Granada I, Montesinos P, Gómez‐Seguí I, Mercadal S, Guàrdia R, Nomdedeu J, Pratcorona M, Tormo M, Martínez‐Lopez J, Hernández‐Rivas J, Ciudad J, Orfao A, González‐Campos J, Barba P, Escoda L, Esteve J, Genescà E, Solé F, Feliu E, Ribera J. Molecular profiling refines minimal residual disease‐based prognostic assessment in adults with Philadelphia chromosome‐negative B‐cell precursor acute lymphoblastic leukemia. Genes Chromosomes Cancer 2019; 58:815-819. [DOI: 10.1002/gcc.22788] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 06/07/2019] [Accepted: 06/13/2019] [Indexed: 12/12/2022] Open
Affiliation(s)
- Jordi Ribera
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Lurdes Zamora
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Mireia Morgades
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Susana Vives
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Isabel Granada
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | | | | | | | - Ramon Guàrdia
- Institut Català d'OncologiaHospital Josep Trueta Girona Spain
| | - Josep Nomdedeu
- Institut de Recerca contra la Leucemia Josep CarrerasHospital Sant Pau Barcelona Spain
| | - Marta Pratcorona
- Institut de Recerca contra la Leucemia Josep CarrerasHospital Sant Pau Barcelona Spain
| | - Mar Tormo
- Hematology Department, Hospital Clínico Valencia Spain
| | | | - Jesús‐María Hernández‐Rivas
- Hospital Universitario de SalamancaUniversidad de Salamanca, IBMCC (CSIC/USAL), IBSAL and CIBERONC Salamanca Spain
| | - Juana Ciudad
- Hospital Universitario de SalamancaUniversidad de Salamanca, IBMCC (CSIC/USAL), IBSAL and CIBERONC Salamanca Spain
| | - Alberto Orfao
- Hospital Universitario de SalamancaUniversidad de Salamanca, IBMCC (CSIC/USAL), IBSAL and CIBERONC Salamanca Spain
| | | | - Pere Barba
- Hematology Department, Hospital Vall d'Hebron Barcelona Spain
| | - Lourdes Escoda
- Institut Català d'OncologiaHospital Joan XXIII Tarragona Spain
| | - Jordi Esteve
- Institut de Recerca contra la Leucemia Josep CarrerasHospital Clínic Barcelona Spain
| | - Eulàlia Genescà
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Francesc Solé
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Evarist Feliu
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
| | - Josep‐Maria Ribera
- Institut de Recerca Contra la Leucemia Josep Carreras, Hospital Germans Trias i PujolUniversitat Autònoma de Barcelona, Institut Català d'Oncologia, Hospital Germans Trias i Pujol Barcelona Spain
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41
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Rack KA, van den Berg E, Haferlach C, Beverloo HB, Costa D, Espinet B, Foot N, Jeffries S, Martin K, O'Connor S, Schoumans J, Talley P, Telford N, Stioui S, Zemanova Z, Hastings RJ. European recommendations and quality assurance for cytogenomic analysis of haematological neoplasms. Leukemia 2019; 33:1851-1867. [PMID: 30696948 PMCID: PMC6756035 DOI: 10.1038/s41375-019-0378-z] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 12/11/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022]
Abstract
Cytogenomic investigations of haematological neoplasms, including chromosome banding analysis, fluorescence in situ hybridisation (FISH) and microarray analyses have become increasingly important in the clinical management of patients with haematological neoplasms. The widespread implementation of these techniques in genetic diagnostics has highlighted the need for guidance on the essential criteria to follow when providing cytogenomic testing, regardless of choice of methodology. These recommendations provide an updated, practical and easily available document that will assist laboratories in the choice of testing and methodology enabling them to operate within acceptable standards and maintain a quality service.
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Affiliation(s)
- K A Rack
- GenQA, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, UK
| | - E van den Berg
- Department of Genetics University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - C Haferlach
- MLL-Munich Leukemia Laboratory, Munich, Germany
| | - H B Beverloo
- Department of Clinical Genetics, Erasmus MC, University medical center, Rotterdam, The Netherlands
| | - D Costa
- Hematopathology Section, Hospital Clinic, Barcelona, Spain
| | - B Espinet
- Laboratori de Citogenètica Molecular, Servei de Patologia, Grup de Recerca,Translacional en Neoplàsies Hematològiques, Cancer Research Program, imim-Hospital del Mar, Barcelona, Spain
| | - N Foot
- Viapath Genetics laboratories, Guys Hospital, London, UK
| | - S Jeffries
- West Midlands Regional Genetics Laboratory, Birmingham Women's Hospital, Birmingham, UK
| | - K Martin
- Department of Cytogenetics, Nottingham University Hospital, Nottingham, UK
| | - S O'Connor
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - J Schoumans
- Oncogénomique laboratory, Hematology department, Lausanne University Hospital, Vaudois, Switzerland
| | - P Talley
- Haematological Malignancy Diagnostic Service, St James's University Hospital, Leeds, UK
| | - N Telford
- Oncology Cytogenetics Service, The Christie NHS Foundation Trust, Manchester, UK
| | - S Stioui
- Laboratorio di Citogenetica e genetica moleculaire, Laboratorio Analisi, Humanitas Research Hospital, Rozzano, Milan, Italy
| | - Z Zemanova
- Prague Center of Oncocytogenetics, Institute of Clinical Biochemistry and Laboratory Diagnostics, General University Hospital and First Faculty of Medicine, Charles University in Prague, Prague, Czech Republic
| | - R J Hastings
- GenQA, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, UK.
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42
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Chiaretti S, Messina M, Foà R. BCR/ABL1-like acute lymphoblastic leukemia: How to diagnose and treat? Cancer 2018; 125:194-204. [PMID: 30561755 DOI: 10.1002/cncr.31848] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/24/2018] [Accepted: 09/28/2018] [Indexed: 12/23/2022]
Abstract
BCR/ABL1-like acute lymphoblastic leukemia (ALL) accounts for 15% to 30% of B-lineage ALL, with a peak of incidence occurring in adolescence. This subgroup of patients is characterized by a peculiar transcriptional profile that resembles that of true BCR/ABL1-positive cases, and have a heterogeneous genetic background and a poor outcome. Next-generation sequencing studies have demonstrated that the majority of patients carry rearrangements of tyrosine kinases or cytokine receptors and mutations of janus kinase (JAK)/signal transducer and activator of transcription (STAT), thus opening the way to the possible use of targeted therapeutic approaches. However, several issues remain unresolved at both the diagnostic and therapeutic level, such as the definition of a standardized method to identify BCR/ABL1-like ALL and the design of ad hoc clinical trials examining tyrosine kinase inhibitors or other tailored treatments. These aspects are discussed in this review.
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Affiliation(s)
- Sabina Chiaretti
- Hematology, Department of Translational and Precision Medicine, "Sapienza" University, Rome, Italy
| | - Monica Messina
- Hematology, Department of Translational and Precision Medicine, "Sapienza" University, Rome, Italy
| | - Robin Foà
- Hematology, Department of Translational and Precision Medicine, "Sapienza" University, Rome, Italy
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43
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Roberts KG. Genetics and prognosis of ALL in children vs adults. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2018; 2018:137-145. [PMID: 30504302 PMCID: PMC6245970 DOI: 10.1182/asheducation-2018.1.137] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is characterized by genetic alterations that block differentiation, promote proliferation of lymphoid precursor cells, and are important for risk stratification. Although ALL is less common in adolescents and young adults (AYAs) and adults than children, survival rates are inferior, and long-term prognosis for adults is poor. Thus, ALL remains a challenging disease to treat in the AYA and adult populations. A major contributing factor that influences prognosis in this population is the reduced prevalence of genetic subtypes associated with favorable outcome and a concomitant increase in subtypes associated with poor outcome. Recent advances in genomic profiling across the age spectrum continue to enhance our knowledge of the differences in disease biology between children and adults and are providing important insights into novel therapeutic targets. Philadelphia chromosome-like (Ph-like) ALL is one such subtype characterized by alterations that deregulate cytokine receptor or tyrosine kinase signaling and are amenable to inhibition with approved tyrosine kinase inhibitors. One of the greatest challenges now remaining is determining how to implement this breadth of genomic information into rapid and accurate diagnostic testing to facilitate the development of novel clinical trials that improve the outcome of AYAs and adults with ALL.
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Affiliation(s)
- Kathryn G Roberts
- Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
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44
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Single-cell analysis identifies CRLF2 rearrangements as both early and late events in Down syndrome and non-Down syndrome acute lymphoblastic leukaemia. Leukemia 2018; 33:893-904. [PMID: 30487598 PMCID: PMC6398588 DOI: 10.1038/s41375-018-0297-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 09/19/2018] [Accepted: 09/24/2018] [Indexed: 12/23/2022]
Abstract
Deregulated expression of the type I cytokine receptor, CRLF2, is observed in 5-15% of precursor B-cell acute lymphoblastic leukaemia (B-ALL). We have previously reported the genomic landscape of patients with CRLF2 rearrangements (CRLF2-r) using both whole genome and exome sequencing, which identified a number of potential clonal and sub-clonal genomic alterations. In this study, we aimed to assess when the CRLF2-r; IGH-CRLF2 or P2RY8-CRLF2, arose during the evolution of both Down syndrome-ALL (DS-ALL) and non-DS-ALL. Using fluorescence in situ hybridisation, we were able to track up to four structural variants in single cells from 47 CRLF2-r B-ALL patients, which in association with our multiplex single cell analysis of a further four patients, permitted simultaneous tracking of copy number alterations, structural and single nucleotide variants within individual cells. We observed CRLF2-r arising as both early and late events in DS and non-DS-ALL patients. Parallel evolution of discrete clones was observed in the development of CRLF2-r B-ALL, either involving the CRLF2-r or one of the other tracked abnormalities. In depth single cell analysis identified both linear and branching evolution with early clones harbouring a multitude of abnormalities, including the CRLF2-r in DS-ALL patients.
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45
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Ishida H, Iguchi A, Aoe M, Takahashi T, Tamefusa K, Kanamitsu K, Fujiwara K, Washio K, Matsubara T, Tsukahara H, Sanada M, Shimada A. Panel-based next-generation sequencing identifies prognostic and actionable genes in childhood acute lymphoblastic leukemia and is suitable for clinical sequencing. Ann Hematol 2018; 98:657-668. [PMID: 30446805 DOI: 10.1007/s00277-018-3554-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 11/10/2018] [Indexed: 01/23/2023]
Abstract
Acute lymphoblastic leukemia (ALL) is the most common malignancy in children. Although the cure rate of ALL has greatly improved, a considerable number of patients suffer from relapse of leukemia. Therefore, ALL remains the leading cause of death from cancer during childhood. To improve the cure rate of these patients, precisely detecting patients with high risk of relapse and incorporating new targeted therapies are urgently needed. This study investigated inexpensive, rapid, next-generation sequencing of more than 150 cancer-related genes for matched diagnostic, remission, and relapse samples of 17 patients (3 months to 15 years old) with relapsed ALL. In this analysis, we identified 16 single-nucleotide variants (SNVs) and insertion/deletion variants and 19 copy number variants (CNVs) at diagnosis and 28 SNVs and insertion/deletion variants and 22 CNVs at relapse. With these genetic alterations, we could detect several B cell precursor ALL patients with high-risk gene alterations who were not stratified into the highest-risk group (5/8, 62.5%). We also detected potentially actionable genetic variants in about half of the patients (8/17, 47.1%). Among them, we found that one patient harbored germline TP53 mutation as a secondary finding. This inexpensive, rapid method can be immediately applied as clinical sequencing and could lead to better management of these patients and potential improvement in the survival rate in childhood ALL.
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Affiliation(s)
- Hisashi Ishida
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Akihiro Iguchi
- Department of Pediatrics, Hokkaido University Hospital, Hokkaido, Japan
| | - Michinori Aoe
- Division of Medical Support, Okayama University Hospital, Okayama, Japan
| | - Takahide Takahashi
- Division of Medical Support, Okayama University Hospital, Okayama, Japan
| | - Kosuke Tamefusa
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Kiichiro Kanamitsu
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Kaori Fujiwara
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Kana Washio
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Takehiro Matsubara
- Department of BioBank, BioRepository/BioMarker Analysis Center, Okayama University Hospital, Okayama, Japan
| | - Hirokazu Tsukahara
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan
| | - Masashi Sanada
- Clinical Research Center, National Hospital Organization, Nagoya Medical Center, Nagoya, Aichi, Japan
| | - Akira Shimada
- Department of Pediatrics/Pediatric Hematology and Oncology, Okayama University Hospital, 2-5-1, Shikatacho, Kitaku, Okayama, 700-8558, Japan.
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46
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Yuniati L, Scheijen B, van der Meer LT, van Leeuwen FN. Tumor suppressors BTG1 and BTG2: Beyond growth control. J Cell Physiol 2018; 234:5379-5389. [PMID: 30350856 PMCID: PMC6587536 DOI: 10.1002/jcp.27407] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 08/22/2018] [Indexed: 01/21/2023]
Abstract
Since the identification of B‐cell translocation gene 1 (BTG1) and BTG2 as antiproliferation genes more than two decades ago, their protein products have been implicated in a variety of cellular processes including cell division, DNA repair, transcriptional regulation and messenger RNA stability. In addition to affecting differentiation during development and in the adult, BTG proteins play an important role in maintaining homeostasis under conditions of cellular stress. Genomic profiling of B‐cell leukemia and lymphoma has put BTG1 and BTG2 in the spotlight, since both genes are frequently deleted or mutated in these malignancies, pointing towards a role as tumor suppressors. Moreover, in solid tumors, reduced expression of BTG1 or BTG2 is often correlated with malignant cell behavior and poor treatment outcome. Recent studies have uncovered novel roles for BTG1 and BTG2 in genotoxic and integrated stress responses, as well as during hematopoiesis. This review summarizes what is currently known about the roles of BTG1 and BTG2 in these and other cellular processes. In addition, we will highlight the molecular mechanisms and biological consequences of BTG1 and BTG2 deregulation during cancer progression and elaborate on the potential clinical implications of these findings.
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Affiliation(s)
- Laurensia Yuniati
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands.,Hubrecht Institute-KNAW, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands.,Department of Pathology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Laurens T van der Meer
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology, Radboud Institute for Molecular Life Science, Radboud University Medical Center, Nijmegen, The Netherlands
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47
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Navarrete-Meneses MP, Pedraza-Meléndez AI, Salas-Labadía C, Moreno-Lorenzana D, Pérez-Vera P. Low concentrations of permethrin and malathion induce numerical and structural abnormalities in KMT2A and IGH genes in vitro. J Appl Toxicol 2018; 38:1262-1270. [PMID: 29741206 DOI: 10.1002/jat.3638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/22/2018] [Accepted: 03/30/2018] [Indexed: 11/09/2022]
Abstract
Pesticides are commonly used worldwide and almost every human is potentially exposed to these chemicals. Exposure to pesticides such as permethrin and malathion has been associated with hematological malignancies in epidemiological studies. However, biological evidence showing if these chemicals induce genetic aberrations involved in the etiology of leukemia and lymphoma is missing. In our previous work, we have shown that a single high exposure (200 μm, 24 hours) of permethrin and malathion induce damage in genes associated with hematological malignancies in peripheral blood mononuclear cells analyzed by interphase fluorescence in situ hybridization (FISH). In the present study, we assessed by FISH whether exposure to low concentrations (0.1 μm, 72 hours) of permethrin and malathion induce aberrations in KMT2A and IGH genes, which are involved in the etiology of leukemia and lymphoma. Peripheral blood mononuclear cells were exposed to the chemicals, and damage in these genes was assessed on interphases and metaphases. We observed that both chemicals at low concentration induced structural aberrations in KMT2A and IGH genes. A higher level of damage was observed in KMT2A gene with malathion treatment and in IGH gene with permethrin exposure. We also observed numerical aberrations induced by these chemicals. The most frequent aberrations detected on interphase FISH were also observed on metaphases. Our results show that permethrin and malathion induce genetic damage in genes associated with hematological cancer, at concentrations biologically relevant. In addition, damage was observed on dividing cells, which suggests that these cells maintain their proliferation capacity in spite of the genetic damage they possess.
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Affiliation(s)
- M P Navarrete-Meneses
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, Mexico.,Posgrado en Ciencias Biológicas, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - A I Pedraza-Meléndez
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, Mexico
| | - C Salas-Labadía
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, Mexico
| | | | - P Pérez-Vera
- Laboratorio de Genética y Cáncer, Departamento de Genética Humana, Instituto Nacional de Pediatría, Ciudad de México, Mexico
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48
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Genomic CDKN2A/2B deletions in adult Ph + ALL are adverse despite allogeneic stem cell transplantation. Blood 2018; 131:1464-1475. [PMID: 29348129 DOI: 10.1182/blood-2017-07-796862] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 01/09/2018] [Indexed: 12/12/2022] Open
Abstract
We investigated the role of copy number alterations to refine risk stratification in adult Philadelphia chromosome positive (Ph)+ acute lymphoblastic leukemia (ALL) treated with tyrosine kinase inhibitors (TKIs) and allogeneic stem cell transplantation (aSCT). Ninety-seven Ph+ ALL patients (median age 41 years; range 18-64 years) within the prospective multicenter German Multicenter ALL Study Group studies 06/99 (n = 8) and 07/2003 (n = 89) were analyzed. All patients received TKI and aSCT in first complete remission (CR1). Copy number analysis was performed with single nucleotide polymorphism arrays and validated by multiplex ligation-dependent probe amplification. The frequencies of recurrently deleted genes were: IKZF1, 76%; CDKN2A/2B, 45%; PAX5, 43%; BTG1, 18%; EBF1, 13%; ETV6, 5%; RB, 14%. In univariate analyses, the presence of CDKN2A/2B deletions had a negative impact on all endpoints: overall survival (P = .023), disease-free survival (P = .012), and remission duration (P = .036). The negative predictive value of CDKN2A/2B deletions was retained in multivariable analysis along with other factors such as timing of TKI therapy, intensity of conditioning, achieving remission after induction phase 1 and BTG1 deletions. We therefore conclude that acquired genomic CDKN2A/2B deletions identify a subgroup of Ph+ ALL patients, who have an inferior prognosis despite aSCT in CR1. Their poor outcome was attributable primarily to a high relapse rate after aSCT.
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49
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Impact of cytogenetic abnormalities in adults with Ph-negative B-cell precursor acute lymphoblastic leukemia. Blood 2017; 130:1832-1844. [DOI: 10.1182/blood-2017-05-783852] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 07/17/2017] [Indexed: 02/05/2023] Open
Abstract
Abstract
Multiple cytogenetic subgroups have been described in adult Philadelphia chromosome (Ph)-negative B-cell precursor (BCP) acute lymphoblastic leukemia (ALL), often comprising small numbers of patients. In this study, we aimed to reassess the prognostic value of cytogenetic abnormalities in a large series of 617 adult patients with Ph-negative BCP-ALL (median age, 38 years), treated in the intensified Group for Research on Adult Acute Lymphoblastic Leukemia (GRAALL)-2003/2005 trials. Combined data from karyotype, DNA index, fluorescence in situ hybridization, and polymerase chain reaction screening for relevant abnormalities were centrally reviewed and were informative in 542 cases (88%), allowing classification in 10 exclusive primary cytogenetic subgroups and in secondary subgroups, including complex and monosomal karyotypes. Prognostic analyses focused on cumulative incidence of failure (including primary refractoriness and relapse), event-free survival, and overall survival. Only 2 subgroups, namely t(4;11)/KMT2A-AFF1 and 14q32/IGH translocations, displayed a significantly worse outcome in this context, still observed after adjustment for age and after censoring patients who received allogeneic stem cell transplantation (SCT) in first remission at SCT time. A worse outcome was also observed in patients with low hypodiploidy/near triploidy, but this was likely related to their higher age and worse tolerance to therapy. The other cytogenetic abnormalities, including complex and monosomal karyotypes, had no prognostic value in these intensive protocols designed for adult patients up to the age of 60 years.
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50
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