1
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Hidalgo-Gómez G, Minguela A, Tazón-Vega B, Ribera J, Galián JA, Martínez-Banaclocha H, García-Garay M, Velasco P, Fuster-Soler JL, Armengol G, Ortega M. Clonal heterogeneity and genomic evolution in intrachromosomal amplification of chromosome 21: A case report. Br J Haematol 2024; 204:2512-2515. [PMID: 38665061 DOI: 10.1111/bjh.19485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 04/10/2024] [Indexed: 06/15/2024]
Affiliation(s)
- Gloria Hidalgo-Gómez
- Hematology Service, Vall d'Hebron Hospital Universitari, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Unit of Biological Anthropology, Department of Animal Biology, Plant Biology, and Ecology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain
| | - Alfredo Minguela
- Immunology Service, Hospital Clínico Universitario Virgen de la Arrixaca (HCUVA), Instituto Murciano de Investigación Biomédica (IMIB), Murcia, Spain
| | - Bárbara Tazón-Vega
- Hematology Service, Vall d'Hebron Hospital Universitari, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Jordi Ribera
- Josep Carreras Leukaemia Research Institute, Hospital ICO-Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
| | - José Antonio Galián
- Immunology Service, Hospital Clínico Universitario Virgen de la Arrixaca (HCUVA), Instituto Murciano de Investigación Biomédica (IMIB), Murcia, Spain
| | - Helios Martínez-Banaclocha
- Immunology Service, Hospital Clínico Universitario Virgen de la Arrixaca (HCUVA), Instituto Murciano de Investigación Biomédica (IMIB), Murcia, Spain
| | - María García-Garay
- Immunology Service, Hospital Clínico Universitario Virgen de la Arrixaca (HCUVA), Instituto Murciano de Investigación Biomédica (IMIB), Murcia, Spain
| | - Pablo Velasco
- Pediatric Oncology and Hematology Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - José Luis Fuster-Soler
- Pediatric Onco-Hematology Department, Hospital Clínico Universitario Virgen de la Arrixaca, Instituto Murciano de Investigación Biosanitaria (IMIB), Murcia, Spain
| | - Gemma Armengol
- Unit of Biological Anthropology, Department of Animal Biology, Plant Biology, and Ecology, Faculty of Biosciences, Universitat Autònoma de Barcelona, Barcelona, Catalonia, Spain
| | - Margarita Ortega
- Hematology Service, Vall d'Hebron Hospital Universitari, Experimental Hematology, Vall d'Hebron Institute of Oncology (VHIO), Hospital Universitari Vall d'Hebron, Barcelona, Spain
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2
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Li X, Lin S, Liao N, Mai H, Long X, Liu L, Wu B, Chen Q, Kong Q, Kong X, Liu L, Qin J, Fang J, Zhou D. The RAS-signaling-pathway-mutation-related prognosis in B-cell acute lymphoblastic leukemia: A report from South China children's leukemia group. Hematol Oncol 2024; 42:e3265. [PMID: 38564328 DOI: 10.1002/hon.3265] [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: 07/03/2023] [Revised: 01/24/2024] [Accepted: 02/23/2024] [Indexed: 04/04/2024]
Abstract
The next-generation sequencing technologies application discovers novel genetic alterations frequently in pediatric acute lymphoblastic leukemia (ALL). RAS signaling pathway mutations at the time of relapse ALL frequently appear as small subclones at the time of onset, which are considered as the drivers in ALL relapse. Whether subclones alterations in the RAS signaling pathway should be considered for risk group stratification of ALL treatment is not decided yet. In this work, we investigate the RAS signaling pathway mutation spectrum and the related prognosis in pediatric ALL. We employed an NGS panel comprising 220 genes. NGS results were collected from 202 pediatric ALL patients. 155 patients (76.7%) harbored at least one mutation. The incidences of RAS signaling pathway mutations are different significantly between T-ALL and B-ALL. In B-ALL, the RAS pathway is mostly involved, and NRAS (17.6%), KRAS (22.7%), and PTPN11 (7.7%) were the three most frequently mutated genes. Co-occurring mutations of CREBBP and NRAS, FLT3, or PTPN11 (p = 0.002, p = 0.009, and p = 0.003, respectively) were found in this cohort. The 3-year RFS rates for the RAS signaling pathway mutation-positive and negative cases was 76.5 % versus 89.7 % (p = 0.012). Four cases relapsed in the lately 3 years were RAS signaling pathway mutation-positive. RAS signaling pathway mutation is an important biomarker for poorer relapse-free survival in pediatric B-ALL patients despite good early MRD levels.
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Affiliation(s)
- Xinyu Li
- Department of Pediatric Hematology/Oncology, Children's Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shaofen Lin
- Department of Pediatric Hematology/Oncology, Children's Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ning Liao
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Huirong Mai
- Department of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, China
| | - Xingjiang Long
- Department of Pediatrics, Liuzhou People's Hospital, Liuzhou, China
| | - Lili Liu
- Department of Pediatrics, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Beiyan Wu
- Department of Pediatrics, The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Qiwen Chen
- Department of Pediatrics, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Qian Kong
- Department of Pediatrics, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xianling Kong
- Department of Pediatrics, Boai Hospital of Zhongshan, Zhongshan, China
| | - Lixia Liu
- Department of Medical Affairs, Acornmed Biotechnology Co., Ltd., Tianjin, China
| | - Jiayue Qin
- Department of Medical Affairs, Acornmed Biotechnology Co., Ltd., Tianjin, China
| | - Jianpei Fang
- Department of Pediatric Hematology/Oncology, Children's Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Dunhua Zhou
- Department of Pediatric Hematology/Oncology, Children's Medical Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
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3
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Trinquand A, Betts DR, Harte S, Sills A, Rooney S, Barrett N, Storey L, Malone A, O'Marcaigh A, Smith OP. Adapted risk stratification and intensive chemotherapy abrogate the poor prognosis of pediatric B acute lymphoblastic leukemia with intrachromosomal amplification of chromosome 21 (iAMP21): a National cohort analysis. Leuk Lymphoma 2024; 65:279-282. [PMID: 37909291 DOI: 10.1080/10428194.2023.2276061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/23/2023] [Indexed: 11/03/2023]
Affiliation(s)
- Amélie Trinquand
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - David R Betts
- Department of Clinical Genetics, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Shauna Harte
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Aoife Sills
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Sean Rooney
- Haematology Laboratory, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Neil Barrett
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Lorna Storey
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Andrea Malone
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Aengus O'Marcaigh
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
| | - Owen P Smith
- National Children's Cancer Service, Children's Health Ireland at Crumlin, Dublin, Ireland
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4
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De Sa H, Leonard J. Novel Biomarkers and Molecular Targets in ALL. Curr Hematol Malig Rep 2024; 19:18-34. [PMID: 38048037 DOI: 10.1007/s11899-023-00718-3] [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] [Accepted: 11/01/2023] [Indexed: 12/05/2023]
Abstract
PURPOSE OF REVIEW Acute lymphoblastic leukemia (ALL) is a widely heterogeneous disease in terms of genomic alterations, treatment options, and prognosis. While ALL is considered largely curable in children, adults tend to have higher risk disease subtypes and do not respond as favorably to conventional chemotherapy. Identifying genomic drivers of leukemogenesis and applying targeted therapies in an effort to improve disease outcomes is an exciting focus of current ALL research. Here, we review recent updates in ALL targeted therapy and present promising opportunities for future research. RECENT FINDINGS With the utilization of next-generation sequencing techniques, the genomic landscape of ALL has greatly expanded to encompass novel subtypes characterized by recurrent chromosomal rearrangements, gene fusions, sequence mutations, and distinct gene expression profiles. The evolution of small molecule inhibitors and immunotherapies, and the exploration of unique therapy combinations are some examples of recent advancements in the field. Targeted therapies are becoming increasingly important in the treatment landscape of ALL to improve outcomes and minimize toxicity. Significant recent advancements have been made in the detection of susceptible genomic drivers and the use of novel therapies to target them.
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Affiliation(s)
- Hong De Sa
- OHSU Center for Health and Healing, Oregon Health & Science University, 3485 S Bond Ave, Mail Code OC14HO, Portland, OR, 97239, USA
| | - Jessica Leonard
- OHSU Center for Health and Healing, Oregon Health & Science University, 3485 S Bond Ave, Mail Code OC14HO, Portland, OR, 97239, USA.
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5
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Hormann FM, Mooij EJ, van de Mheen M, Beverloo HB, den Boer ML, Boer JM. The impact of an additional copy of chromosome 21 in B-cell precursor acute lymphoblastic leukemia. Genes Chromosomes Cancer 2024; 63:e23217. [PMID: 38087879 DOI: 10.1002/gcc.23217] [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: 09/12/2023] [Revised: 11/27/2023] [Accepted: 11/30/2023] [Indexed: 01/04/2024] Open
Abstract
A common finding in pediatric B-cell precursor acute lymphoblastic leukemia (BCPALL) is that chromosome 21 is never lost and an extra chromosome 21 is often gained. This implies an important role for chromosome 21 in the pathobiology of BCPALL, emphasized by the increased risk of BCPALL in children with Down syndrome. However, model systems of chromosome 21 gain are lacking. We therefore developed a BCPALL cell line (Nalm-6, DUX4-rearranged) with an additional chromosome 21 by means of microcell-mediated chromosome transfer. FISH, PCR, multiplex ligation-dependent probe amplification, and whole exome sequencing showed that an additional chromosome 21 was successfully transferred to the recipient cells. Transcription of some but not all genes on chromosome 21 was increased, indicating tight transcriptional regulation. Nalm-6 cells with an additional chromosome 21 proliferated slightly slower compared with parental Nalm-6 and sensitivity to induction chemotherapeutics was mildly increased. The extra copy of chromosome 21 did not confer sensitivity to targeted signaling inhibitors. In conclusion, a BCPALL cell line with an additional human chromosome 21 was developed, validated, and subjected to functional studies, which showed a minor but potentially relevant effect in vitro. This cell line offers the possibility to study further the role of chromosome 21 in ALL.
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Affiliation(s)
- Femke M Hormann
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Pediatric Oncology/Hematology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Eva J Mooij
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | | | - H Berna Beverloo
- Department of Clinical Genetics, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Monique L den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
- Department of Pediatric Oncology/Hematology, Erasmus Medical Center - Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Judith M Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, The Netherlands
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6
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Sinclair PB, Cranston RE, Raninga P, Cheng J, Hanna R, Hawking Z, Hair S, Ryan SL, Enshaei A, Nakjang S, Rand V, Blair HJ, Moorman AV, Heidenreich O, Harrison CJ. Disruption to the FOXO-PRDM1 axis resulting from deletions of chromosome 6 in acute lymphoblastic leukaemia. Leukemia 2023; 37:636-649. [PMID: 36670235 PMCID: PMC9991907 DOI: 10.1038/s41375-023-01816-0] [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: 08/23/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/22/2023]
Abstract
A common problem in the study of human malignancy is the elucidation of cancer driver mechanisms associated with recurrent deletion of regions containing multiple genes. Taking B-cell acute lymphoblastic leukaemia (B-ALL) and large deletions of 6q [del(6q)] as a model, we integrated analysis of functional cDNA clone tracking assays with patient genomic and transcriptomic data, to identify the transcription factors FOXO3 and PRDM1 as candidate tumour suppressor genes (TSG). Analysis of cell cycle and transcriptomic changes following overexpression of FOXO3 or PRDM1 indicated that they co-operate to promote cell cycle exit at the pre-B cell stage. FOXO1 abnormalities are absent in B-ALL, but like FOXO3, FOXO1 expression suppressed growth of TCF3::PBX1 and ETV6::RUNX1 B-ALL in-vitro. While both FOXOs induced PRDM1 and other genes contributing to late pre-B cell development, FOXO1 alone induced the key transcription factor, IRF4, and chemokine, CXCR4. CRISPR-Cas9 screening identified FOXO3 as a TSG, while FOXO1 emerged as essential for B-ALL growth. We relate this FOXO3-specific leukaemia-protective role to suppression of glycolysis based on integrated analysis of CRISPR-data and gene sets induced or suppressed by FOXO1 and FOXO3. Pan-FOXO agonist Selinexor induced the glycolysis inhibitor TXNIP and suppressed B-ALL growth at low dose (ID50 < 50 nM).
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Affiliation(s)
- Paul B Sinclair
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK.
| | - Ruth E Cranston
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Prahlad Raninga
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Joanna Cheng
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Rebecca Hanna
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Zoe Hawking
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Steven Hair
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Sarra L Ryan
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Amir Enshaei
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Sirintra Nakjang
- Bioinformatics Support Unit, Faculty of Medical Science, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Vikki Rand
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
- School of Health and Life Sciences, Teesside University, Middlesborough, UK
- National Horizons Centre, Teesside University, Darlington, UK
| | - Helen J Blair
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Anthony V Moorman
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
| | - Olaf Heidenreich
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK
- Princess Maxima Centre for Paediatric Oncology, Utrecht, The Netherlands
| | - Christine J Harrison
- Newcastle University Centre for Cancer, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle-Upon-Tyne, UK.
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7
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Hormann FM, Hoogkamer AQ, Boeree A, Sonneveld E, Escherich G, den Boer ML, Boer JM. Integrating copy number data of 64 iAMP21 BCP-ALL patients narrows the common region of amplification to 1.57 Mb. Front Oncol 2023; 13:1128560. [PMID: 36910655 PMCID: PMC9996016 DOI: 10.3389/fonc.2023.1128560] [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: 12/20/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
Background and purpose Intrachromosomal amplification of chromosome 21 (iAMP21) is a rare subtype of B-cell precursor acute lymphoblastic leukaemia (BCP-ALL). It is unknown how iAMP21 contributes to leukaemia. The currently known commonly amplified region is 5.1 Mb. Methods We aimed to narrow down the common region of amplification by using high resolution techniques. Array comparative genomic hybridization (aCGH) was used to determine copy number aberrations, Affymetrix U133 Plus2 expression arrays were used to determine gene expression. Genome-wide expression correlations were evaluated using Globaltest. Results We narrowed down the common region of amplification by combining copy number data from 12 iAMP21 cases with 52 cases from literature. The combined common region of amplification was 1.57 Mb, located from 36.07 to 37.64 Mb (GRCh38). This region is located telomeric from, but not including, RUNX1, which is the locus commonly used to diagnose iAMP21. This narrow region, which falls inside the Down Syndrome critical region, includes 13 genes of which the expression of eight genes was significantly upregulated compared with 143 non-iAMP21 B-other cases. Among these, transcriptional repressor RIPPLY3 (also known as DSCR6) was the highest overexpressed gene (fold change = 4.2, FDR < 0.001) and most strongly correlated (R = 0.58) with iAMP21-related genome-wide expression changes. Discussion The more precise definition of the common region of amplification could be beneficial in the diagnosis of iAMP21 based on copy number analysis from DNA sequencing or arrays as well as stimulate functional research into the role of the included genes in iAMP21 biology.
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Affiliation(s)
- Femke M Hormann
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands.,Erasmus Medical Center (MC) - Sophia Children's Hospital, Department of Pediatric Oncology and Hematology, Rotterdam, Netherlands
| | - Alex Q Hoogkamer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | - Aurélie Boeree
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
| | - Edwin Sonneveld
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.,Dutch Childhood Oncology Group, Utrecht, Netherlands
| | - Gabriele Escherich
- Cooperative study group for childhood acute lymphoblastic leukaemia (COALL) - German Cooperative Study Group for Childhood Acute Lymphoblastic Leukemia, Hamburg, Germany.,Clinic of Pediatric Hematology and Oncology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Monique L den Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands.,Erasmus Medical Center (MC) - Sophia Children's Hospital, Department of Pediatric Oncology and Hematology, Rotterdam, Netherlands.,Dutch Childhood Oncology Group, Utrecht, Netherlands
| | - Judith M Boer
- Princess Máxima Center for Pediatric Oncology, Utrecht, Netherlands.,Oncode Institute, Utrecht, Netherlands
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KRAS Affects the Lipid Composition by Regulating Mitochondrial Functions and MAPK Activation in Bovine Mammary Epithelial Cells. Animals (Basel) 2022; 12:ani12223070. [PMID: 36428301 PMCID: PMC9686882 DOI: 10.3390/ani12223070] [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: 07/19/2022] [Revised: 10/30/2022] [Accepted: 10/31/2022] [Indexed: 11/09/2022] Open
Abstract
Kirsten rat sarcoma viral oncogene homolog (KRAS), or guanosine triphosphatase KRAS, is a proto-oncogene that encodes the small guanosine triphosphatase transductor protein. Previous studies have found that KRAS can promote cytokine secretion, cell chemotaxis, and survival. However, its effects on milk fat synthesis in bovine mammary epithelial cells are unclear. In this study, the effects of KRAS inhibition on cell metabolism, autophagy, oxidative stress, endoplasmic reticulum stress, mitochondrial function, and lipid composition as well as the potential mechanisms were detected in an immortalized dairy cow mammary epithelial cell line (MAC-T). The results showed that inhibition of KRAS changed the lipid composition (especially the triglyceride level), mitochondrial functions, autophagy, and endoplasmic reticulum stress in cells. Moreover, KRAS inhibition regulated the levels of the mammalian target of rapamycin and mitogen-activated protein kinase (extracellular regulated protein kinases, c-Jun N-terminal kinases, p38) activation. These results indicated that regulation of KRAS would affect the synthesis and composition of milk fat. These results are also helpful for exploring the synthesis and secretion of milk fat at the molecular level and provide a theoretical basis for improving the percentage of fat in milk and the yield of milk from cows.
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9
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Pilheden M, Ahlgren L, Hyrenius-Wittsten A, Gonzalez-Pena V, Sturesson H, Hansen Marquart HV, Lausen B, Castor A, Pronk CJ, Barbany G, Pokrovskaja Tamm K, Fogelstrand L, Lohi O, Norén-Nyström U, Asklin J, Chen Y, Song G, Walsh M, Ma J, Zhang J, Saal LH, Gawad C, Hagström-Andersson AK. Duplex Sequencing Uncovers Recurrent Low-frequency Cancer-associated Mutations in Infant and Childhood KMT2A-rearranged Acute Leukemia. Hemasphere 2022; 6:e785. [PMID: 36204688 PMCID: PMC9529062 DOI: 10.1097/hs9.0000000000000785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/30/2022] [Indexed: 11/26/2022] Open
Abstract
Infant acute lymphoblastic leukemia (ALL) with KMT2A-gene rearrangements (KMT2A-r) have few mutations and a poor prognosis. To uncover mutations that are below the detection of standard next-generation sequencing (NGS), a combination of targeted duplex sequencing and NGS was applied on 20 infants and 7 children with KMT2A-r ALL, 5 longitudinal and 6 paired relapse samples. Of identified nonsynonymous mutations, 87 had been previously implicated in cancer and targeted genes recurrently altered in KMT2A-r leukemia and included mutations in KRAS, NRAS, FLT3, TP53, PIK3CA, PAX5, PIK3R1, and PTPN11, with infants having fewer such mutations. Of identified cancer-associated mutations, 62% were below the resolution of standard NGS. Only 33 of 87 mutations exceeded 2% of cellular prevalence and most-targeted PI3K/RAS genes (31/33) and typically KRAS/NRAS. Five patients only had low-frequency PI3K/RAS mutations without a higher-frequency signaling mutation. Further, drug-resistant clones with FLT3 D835H or NRAS G13D/G12S mutations that comprised only 0.06% to 0.34% of diagnostic cells, expanded at relapse. Finally, in longitudinal samples, the relapse clone persisted as a minor subclone from diagnosis and through treatment before expanding during the last month of disease. Together, we demonstrate that infant and childhood KMT2A-r ALL harbor low-frequency cancer-associated mutations, implying a vast subclonal genetic landscape.
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Affiliation(s)
- Mattias Pilheden
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Louise Ahlgren
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Axel Hyrenius-Wittsten
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - Veronica Gonzalez-Pena
- Division of Pediatric Hematology/Oncology, Stanford University, School of Medicine, Stanford, CA, USA
| | - Helena Sturesson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | | | - Birgitte Lausen
- Department of Paediatrics and Adolescent Medicine, Rigshospitalet, University of Copenhagen, Denmark
| | - Anders Castor
- Childhood Cancer Center, Skane University Hospital, Lund, Sweden
| | | | - Gisela Barbany
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | | | - Linda Fogelstrand
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, Sweden
| | - Olli Lohi
- Tampere Center for Child, Adolescent and Maternal Health Research and Tays Cancer Center, Tampere University and Tampere University Hospital, Tampere, Finland
| | | | | | | | - Guangchun Song
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Michael Walsh
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jing Ma
- Department of Pathology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Jinghui Zhang
- Department of Computational Biology, St. Jude Children’s Research Hospital, Memphis, TN, USA
| | - Lao H. Saal
- SAGA Diagnostics, Lund, Sweden
- Division of Oncology, Department of Clinical Sciences, Lund University, Lund, Sweden
| | - Charles Gawad
- Division of Pediatric Hematology/Oncology, Stanford University, School of Medicine, Stanford, CA, USA
| | - Anna K. Hagström-Andersson
- Division of Clinical Genetics, Department of Laboratory Medicine, Lund University, Lund, Sweden
- Center for Translational Genomics, Lund University, Lund, Sweden
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10
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Safaei S, Sajed R, Saeednejad Zanjani L, Rahimi M, Fattahi F, Ensieh Kazemi-Sefat G, Razmi M, Dorafshan S, Eini L, Madjd Z, Ghods R. Overexpression of cytoplasmic dynamin 2 is associated with worse outcomes in patients with clear cell renal cell carcinoma. Cancer Biomark 2022; 35:27-45. [DOI: 10.3233/cbm-210514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Dynamin 2 (DNM2) involved in tumor progression in various malignancies. OBJECTIVE: For the first time, we evaluated DNM2 expression pattern, its association with clinicopathological characteristics and survival outcomes in RCC subtypes. METHODS: We evaluated the DNM2 expression pattern in RCC tissues as well as adjacent normal tissue using immunohistochemistry on tissue microarray (TMA) slides. RESULTS: Our findings revealed increased DNM2 expression in RCC samples rather than in adjacent normal tissues. The results indicated that there was a statistically significant difference between cytoplasmic expression of DNM2 among subtypes of RCC in terms of intensity of staining, percentage of positive tumor cells, and H-score (P= 0.024, 0.049, and 0.009, respectively). The analysis revealed that increased cytoplasmic expression of DNM2 in ccRCC is associated with worse OS (log rank: P= 0.045), DSS (P= 0.049), and PFS (P= 0.041). Furthermore, cytoplasmic expression of DNM2 was found as an independent prognostic factor affecting DSS and PFS in multivariate analysis. CONCLUSIONS: Our results indicated that DNM2 cytoplasmic expression is associated with tumor aggressiveness and poor outcomes. DNM2 could serve as a promising prognostic biomarker and therapeutic target in patients with ccRCC.
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Affiliation(s)
- Sadegh Safaei
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Roya Sajed
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | | | - Mandana Rahimi
- Hasheminejad Kidney Center, Pathology department, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Fahimeh Fattahi
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Golnaz Ensieh Kazemi-Sefat
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mahdieh Razmi
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Shima Dorafshan
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Leila Eini
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
- Division of Histology, Department of Basic Science, Faculty of Veterinary Medicine, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Zahra Madjd
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Roya Ghods
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
- Oncopathology Research Center, Iran University of Medical Sciences (IUMS), Tehran, Iran
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11
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Menne T, Slade D, Savage J, Johnson S, Irving J, Kearns P, Plummer R, Shenton G, Veal GJ, Vormoor B, Vormoor J, Billingham L. Selumetinib in combination with dexamethasone for the treatment of relapsed/refractory RAS-pathway mutated paediatric and adult acute lymphoblastic leukaemia (SeluDex): study protocol for an international, parallel-group, dose-finding with expansion phase I/II trial. BMJ Open 2022; 12:e059872. [PMID: 35246426 PMCID: PMC8900053 DOI: 10.1136/bmjopen-2021-059872] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 01/27/2022] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Event-free survival rates at 15 years for paediatric patients with relapsed/refractory acute lymphoblastic leukaemia (ALL) are 30%-50%, with 5-year survival for adult patients only 20%. Many patients with newly diagnosed and relapsed ALL harbour somatic RAS-signalling activation mutations. Induction therapy for ALL involves steroids, with preclinical data suggesting the combination of dexamethasone with the MEK1/2 inhibitor, selumetinib (ARRY-142886) has a synergistic anticancer effect. METHODS AND ANALYSIS The SeluDex trial is an international, parallel-group, dose-finding with expansion, phase I/II trial to assess the selumetinib/dexamethasone combination in adult and paediatric patients with relapsed/refractory, RAS pathway mutant ALL. The Cancer Research UK Clinical Trials Unit at University of Birmingham is the UK Coordinating Centre, with national hubs in Copenhagen, Denmark; Monza, Italy; Münster, Germany; Paris, France; and Utrecht, Netherlands. Patients with morphologically proven relapsed/refractory or progressive B-cell precursor or T-cell ALL, with demonstrated RAS pathway activating mutations are eligible. Adult patients are >18 years old, ECOG <2 and paediatric <18 years old, Lansky play scale ≥60% or Karnofsky score ≥60%. Phase I primary objective is the recommended phase II dose of selumetinib as defined by occurrence/non-occurrence of dose limiting toxicities using the continual reassessment method; phase II will evaluate preliminary antileukaemic activity of the combination, as defined by morphological response 28 days post-treatment using a Bayesian approach. Target recruitment is between 26 and 42 patients (minimum 13 and maximum 21 per group), depending the number of phase I patients included in phase II. ETHICS AND DISSEMINATION Medical ethical committees of all the participating countries have approved the study protocol; initial (UK) ethics approval (17/YH/0123) was granted by Yorkshire & The Humber-Leeds West Research Ethics Committee. Participants are required to provide written informed consent/assent. Results will be disseminated through national and international presentations and peer-reviewed publications. TRIAL REGISTRATION NUMBER ISRCTN92323261.
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Affiliation(s)
- Tobias Menne
- Northern Center for Cancer Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Daniel Slade
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomics Cancer, University of Birmingham, Birmingham, UK
| | - Joshua Savage
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomics Cancer, University of Birmingham, Birmingham, UK
| | - Sarah Johnson
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomics Cancer, University of Birmingham, Birmingham, UK
| | - Julie Irving
- Wolfson Childhood Cancer Research Centre, Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
| | - Pamela Kearns
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomics Cancer, University of Birmingham, Birmingham, UK
| | - Ruth Plummer
- Northern Center for Cancer Care, Freeman Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
- Wolfson Childhood Cancer Research Centre, Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
| | - Geoff Shenton
- Great North Children's Hospital, Royal Victoria Infirmary Hospital, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Gareth J Veal
- Wolfson Childhood Cancer Research Centre, Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
| | - Britta Vormoor
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Josef Vormoor
- Wolfson Childhood Cancer Research Centre, Newcastle University Centre for Cancer, Newcastle University, Newcastle upon Tyne, UK
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Lucinda Billingham
- Cancer Research UK Clinical Trials Unit, Institute of Cancer and Genomics Cancer, University of Birmingham, Birmingham, UK
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12
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Lejman M, Chałupnik A, Chilimoniuk Z, Dobosz M. Genetic Biomarkers and Their Clinical Implications in B-Cell Acute Lymphoblastic Leukemia in Children. Int J Mol Sci 2022; 23:ijms23052755. [PMID: 35269896 PMCID: PMC8911213 DOI: 10.3390/ijms23052755] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/27/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023] Open
Abstract
Acute lymphoblastic leukemia (ALL) is a heterogeneous group of hematologic malignancies characterized by abnormal proliferation of immature lymphoid cells. It is the most commonly diagnosed childhood cancer with an almost 80% cure rate. Despite favorable survival rates in the pediatric population, a significant number of patients develop resistance to therapy, resulting in poor prognosis. ALL is a heterogeneous disease at the genetic level, but the intensive development of sequencing in the last decade has made it possible to broaden the study of genomic changes. New technologies allow us to detect molecular changes such as point mutations or to characterize epigenetic or proteomic profiles. This process made it possible to identify new subtypes of this disease characterized by constellations of genetic alterations, including chromosome changes, sequence mutations, and DNA copy number alterations. These genetic abnormalities are used as diagnostic, prognostic and predictive biomarkers that play an important role in earlier disease detection, more accurate risk stratification, and treatment. Identification of new ALL biomarkers, and thus a greater understanding of their molecular basis, will lead to better monitoring of the course of the disease. In this article, we provide an overview of the latest information on genomic alterations found in childhood ALL and discuss their impact on patients' clinical outcomes.
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Affiliation(s)
- Monika Lejman
- Laboratory of Genetic Diagnostics, Medical University of Lublin, 20-093 Lublin, Poland
- Correspondence:
| | - Aleksandra Chałupnik
- Student Scientific Society, Laboratory of Genetic Diagnostics, Medical University of Lublin, 20-093 Lublin, Poland; (A.C.); (Z.C.); (M.D.)
| | - Zuzanna Chilimoniuk
- Student Scientific Society, Laboratory of Genetic Diagnostics, Medical University of Lublin, 20-093 Lublin, Poland; (A.C.); (Z.C.); (M.D.)
| | - Maciej Dobosz
- Student Scientific Society, Laboratory of Genetic Diagnostics, Medical University of Lublin, 20-093 Lublin, Poland; (A.C.); (Z.C.); (M.D.)
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13
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Salvaris R, Fedele PL. Targeted Therapy in Acute Lymphoblastic Leukaemia. J Pers Med 2021; 11:715. [PMID: 34442359 PMCID: PMC8398498 DOI: 10.3390/jpm11080715] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 07/21/2021] [Indexed: 11/26/2022] Open
Abstract
The last decade has seen a significant leap in our understanding of the wide range of genetic lesions underpinning acute lymphoblastic leukaemia (ALL). Next generation sequencing has led to the identification of driver mutations with significant implications on prognosis and has defined entities such as BCR-ABL-like ALL, where targeted therapies such as tyrosine kinase inhibitors (TKIs) and JAK inhibitors may play a role in its treatment. In Philadelphia positive ALL, the introduction of TKIs into frontline treatment regimens has already transformed patient outcomes. In B-ALL, agents targeting surface receptors CD19, CD20 and CD22, including monoclonal antibodies, bispecific T cell engagers, antibody drug conjugates and chimeric antigen receptor (CAR) T cells, have shown significant activity but come with unique toxicities and have implications for how treatment is sequenced. Advances in T-ALL have lagged behind those seen in B-ALL. However, agents such as nelarabine, bortezomib and CAR T cell therapy targeting T cell antigens have been examined with promising results seen. As our understanding of disease biology in ALL grows, as does our ability to target pathways such as apoptosis, through BH3 mimetics, chemokines and epigenetic regulators. This review aims to highlight a range of available and emerging targeted therapeutics in ALL, to explore their mechanisms of action and to discuss the current evidence for their use.
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Affiliation(s)
- Ross Salvaris
- Department of Clinical Haematology, Monash Health, Clayton 3168, Australia;
- School of Clinical Sciences at Monash Health, Monash University, Clayton 3168, Australia
| | - Pasquale Luke Fedele
- Department of Clinical Haematology, Monash Health, Clayton 3168, Australia;
- School of Clinical Sciences at Monash Health, Monash University, Clayton 3168, Australia
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14
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Moreno Lorenzana D, Juárez Velázquez MDR, Reyes León A, Martínez Anaya D, Hernández Monterde A, Salas Labadía C, Navarrete Meneses MDP, Zapata Tarrés M, Juárez Villegas L, Jarquín Ramírez B, Cárdenas Cardós R, Herrera Almanza M, Paredes Aguilera R, Pérez Vera P. CRLF2 and IKZF1 abnormalities in Mexican children with acute lymphoblastic leukemia and recurrent gene fusions: exploring surrogate markers of signaling pathways. J Pathol Clin Res 2021; 7:410-421. [PMID: 33890726 PMCID: PMC8185361 DOI: 10.1002/cjp2.211] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 01/15/2021] [Accepted: 03/10/2021] [Indexed: 11/29/2022]
Abstract
The gene fusions BCR-ABL1, TCF3-PBX1, and ETV6-RUNX1 are recurrent in B-cell acute lymphoblastic leukemia (B-ALL) and are found with low frequency in coexistence with CRLF2 (cytokine receptor-like factor 2) rearrangements and overexpression. There is limited information regarding the CRLF2 abnormalities and dominant-negative IKZF1 isoforms associated with surrogate markers of Jak2, ABL, and Ras signaling pathways. To assess this, we evaluated 24 Mexican children with B-ALL positive for recurrent gene fusions at diagnosis. We found CRLF2 rearrangements and/or overexpression, dominant-negative IKZF1 isoforms, and surrogate phosphorylated markers of signaling pathways coexisting with recurrent gene fusions. All the BCR-ABL1 patients expressed CRLF2 and were positive for pCrkl (ABL); most of them were also positive for pStat5 (Jak2/Stat5) and negative for pErk (Ras). TCF3-PBX1 patients with CRLF2 abnormalities were positive for pStat5, most of them were also positive for pCrkl, and two patients were also positive for pErk. One patient with ETV6-RUNX1 and intracellular CRLF2 protein expressed pCrkl. In some cases, the activated signaling pathways were reverted in vitro by specific inhibitors. We further analyzed a TCF3-PBX1 patient at relapse, identifying a clone with the recurrent gene fusion, P2RY8-CRLF2, rearrangement, and phosphorylation of the three surrogate markers that we studied. These results agree with the previous reports regarding resistance to treatment observed in patients with recurrent gene fusions and coexisting CRLF2 gene abnormalities. A marker phosphorylation signature was identified in BCR-ABL1 and TCF3-PBX1 patients. To obtain useful information for the assessment of treatment in B-ALL patients with recurrent gene fusions, we suggest that they should be evaluated at diagnosis for CRLF2 gene abnormalities and dominant-negative IKZF1 isoforms, in addition to the analyses of activation and inhibition of signaling pathways.
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Affiliation(s)
- Dafné Moreno Lorenzana
- Laboratorio de Genética y CáncerInstituto Nacional de PediatríaMexico CityMexico
- Cátedra CONACYT‐Instituto Nacional de PediatríaMexico CityMexico
| | | | - Adriana Reyes León
- Laboratorio de Genética y CáncerInstituto Nacional de PediatríaMexico CityMexico
| | - Daniel Martínez Anaya
- Laboratorio de Genética y CáncerInstituto Nacional de PediatríaMexico CityMexico
- Posgrado en Ciencias BiológicasUniversidad Nacional Autónoma de MéxicoMexico CityMexico
| | | | | | | | | | - Luis Juárez Villegas
- Servicio de Hemato‐OncologíaHospital Infantil de México Federico GómezMexico CityMexico
| | | | | | - Martha Herrera Almanza
- Laboratorio de Genética y CáncerInstituto Nacional de PediatríaMexico CityMexico
- Becaria de la Dirección General de Calidad y Educación en SaludSecretaría de Salud MéxicoMexico CityMexico
| | | | - Patricia Pérez Vera
- Laboratorio de Genética y CáncerInstituto Nacional de PediatríaMexico CityMexico
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15
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Feusier JE, Arunachalam S, Tashi T, Baker MJ, VanSant-Webb C, Ferdig A, Welm BE, Rodriguez-Flores JL, Ours C, Jorde LB, Prchal JT, Mason CC. Large-Scale Identification of Clonal Hematopoiesis and Mutations Recurrent in Blood Cancers. Blood Cancer Discov 2021; 2:226-237. [PMID: 34027416 DOI: 10.1158/2643-3230.bcd-20-0094] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Clonal hematopoiesis of indeterminate potential (CHIP) is characterized by detectable hematopoietic-associated gene mutations in a person without evidence of hematologic malignancy. We sought to identify additional cancer-presenting mutations useable for CHIP detection by performing a data mining analysis of 48 somatic mutation studies reporting mutations at diagnoses of 7,430 adult and pediatric patients with hematologic malignancies. Following extraction of 20,141 protein-altering mutations, we identified 434 significantly recurrent mutation hotspots, 364 of which occurred at loci confidently assessable for CHIP. We then performed an additional large-scale analysis of whole exome sequencing data from 4,538 persons belonging to three non-cancer cohorts for clonal mutations. We found the combined cohort prevalence of CHIP with mutations identical to those reported at blood cancer mutation hotspots to be 1.8%, and that some of these CHIP mutations occurred in children. Our findings may help to improve CHIP detection and pre-cancer surveillance for both children and adults.
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Affiliation(s)
- Julie E Feusier
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA.,Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Sasi Arunachalam
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Department of Oncological Sciences, University of Utah, Salt Lake City, UT, USA
| | - Tsewang Tashi
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, UT, USA.,VA Medical Center, Salt Lake City, UT, USA
| | - Monika J Baker
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Chad VanSant-Webb
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Amber Ferdig
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Bryan E Welm
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | | | - Christopher Ours
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Lynn B Jorde
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Josef T Prchal
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, UT, USA.,VA Medical Center, Salt Lake City, UT, USA
| | - Clinton C Mason
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
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16
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Abstract
PURPOSE OF REVIEW Ras pathway mutations are one of the most common type of alterations in pediatric hematologic malignancies and are frequently associated with adverse outcomes. Despite ongoing efforts to use targeted treatments, there remain no Food and Drug Administration (FDA)-approved medications specifically for children with Ras pathway-mutated leukemia. This review will summarize the role of Ras pathway mutations in pediatric leukemia, discuss the current state of Ras pathway inhibitors and highlight the most promising agents currently being evaluated in clinical trials. RECENT FINDINGS Efficacy using RAF and MEK inhibitors has been demonstrated across multiple solid and brain tumors, and these are now considered standard-of-care for certain tumor types in adults and children. Clinical trials are now testing these medications for the first time in pediatric hematologic disorders, such as acute lymphoblastic leukemia, juvenile myelomonocytic leukemia, and histiocytic disorders. Novel inhibitors of the Ras pathway, including direct RAS inhibitors, are also being tested in clinical trials across a spectrum of pediatric and adult malignancies. SUMMARY Activation of the Ras pathway is a common finding in pediatric hematologic neoplasms. Implementation of precision medicine with a goal of improving outcomes for these patients will require testing of Ras pathway inhibitors in combination with other drugs in the context of current and future clinical trials.
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17
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RAS-protein activation but not mutation status is an outcome predictor and unifying therapeutic target for high-risk acute lymphoblastic leukemia. Oncogene 2020; 40:746-762. [PMID: 33247204 PMCID: PMC7843419 DOI: 10.1038/s41388-020-01567-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/30/2020] [Accepted: 11/11/2020] [Indexed: 02/07/2023]
Abstract
Leukemias are routinely sub-typed for risk/outcome prediction and therapy choice using acquired mutations and chromosomal rearrangements. Down syndrome acute lymphoblastic leukemia (DS-ALL) is characterized by high frequency of CRLF2-rearrangements, JAK2-mutations, or RAS-pathway mutations. Intriguingly, JAK2 and RAS-mutations are mutually exclusive in leukemic sub-clones, causing dichotomy in therapeutic target choices. We prove in a cell model that elevated CRLF2 in combination with constitutionally active JAK2 is sufficient to activate wtRAS. On primary clinical DS-ALL samples, we show that wtRAS-activation is an obligatory consequence of mutated/hyperphosphorylated JAK2. We further prove that CRLF2-ligand TSLP boosts the direct binding of active PTPN11 to wtRAS, providing the molecular mechanism for the wtRAS activation. Pre-inhibition of RAS or PTPN11, but not of PI3K or JAK-signaling, prevented TSLP-induced RAS-GTP boost. Cytotoxicity assays on primary clinical DS-ALL samples demonstrated that, regardless of mutation status, high-risk leukemic cells could only be killed using RAS-inhibitor or PTPN11-inhibitor, but not PI3K/JAK-inhibitors, suggesting a unified treatment target for up to 80% of DS-ALL. Importantly, protein activities-based principal-component-analysis multivariate clusters analyzed for independent outcome prediction using Cox proportional-hazards model showed that protein-activity (but not mutation-status) was independently predictive of outcome, demanding a paradigm-shift in patient-stratification strategy for precision therapy in high-risk ALL.
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18
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Ratti S, Lonetti A, Follo MY, Paganelli F, Martelli AM, Chiarini F, Evangelisti C. B-ALL Complexity: Is Targeted Therapy Still A Valuable Approach for Pediatric Patients? Cancers (Basel) 2020; 12:cancers12123498. [PMID: 33255367 PMCID: PMC7760974 DOI: 10.3390/cancers12123498] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 11/17/2020] [Accepted: 11/20/2020] [Indexed: 02/07/2023] Open
Abstract
Simple Summary B-ALL is the more frequent childhood malignancy. Even though significant improvements in patients’ survival, some pediatric B-ALL have still poor prognosis and novel strategies are needed. Recently, new genetic abnormalities and altered signaling pathways have been described, defining novel B-ALL subtypes.Innovative targeted therapeutic drugs may potentially show a great impact on the treatment of B-ALL subtypes, offering an important chance to block multiple signaling pathways and potentially improving the clinical management of B-ALL younger patients, especially for the new identified subtypes that lack efficient chemotherapeutic protocols. In this review, we shed light on the up-to-date knowledge of the novel childhood B-ALL subtypes and the altered signaling pathways that could become new druggable targets. Abstract B-cell acute lymphoblastic leukemia (B-ALL) is a hematologic malignancy that arises from the clonal expansion of transformed B-cell precursors and predominately affects childhood. Even though significant progresses have been made in the treatment of B-ALL, pediatric patients’ outcome has to be furtherly increased and alternative targeted treatment strategies are required for younger patients. Over the last decade, novel approaches have been used to understand the genomic landscape and the complexity of the molecular biology of pediatric B-ALL, mainly next generation sequencing, offering important insights into new B-ALL subtypes, altered pathways, and therapeutic targets that may lead to improved risk stratification and treatments. Here, we will highlight the up-to-date knowledge of the novel B-ALL subtypes in childhood, with particular emphasis on altered signaling pathways. In addition, we will discuss the targeted therapies that showed promising results for the treatment of the different B-ALL subtypes.
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Affiliation(s)
- Stefano Ratti
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (S.R.); (M.Y.F.); (F.P.); (A.M.M.)
| | - Annalisa Lonetti
- Giorgio Prodi Cancer Research Center, S. Orsola-Malpighi Hospital, University of Bologna, Via Massarenti, 11, 40138 Bologna, Italy;
| | - Matilde Y. Follo
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (S.R.); (M.Y.F.); (F.P.); (A.M.M.)
| | - Francesca Paganelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (S.R.); (M.Y.F.); (F.P.); (A.M.M.)
| | - Alberto M. Martelli
- Department of Biomedical and Neuromotor Sciences, University of Bologna, Via Irnerio 48, 40126 Bologna, Italy; (S.R.); (M.Y.F.); (F.P.); (A.M.M.)
| | - Francesca Chiarini
- CNR Institute of Molecular Genetics Luigi Luca Cavalli-Sforza, Via di Barbiano 1/10, 40136 Bologna, Italy
- IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano 1/10, 40136 Bologna, Italy
- Correspondence: (F.C.); (C.E.); Tel.: +39-051-209-1581 (F.C.); +39-051-209-1581 (C.E.)
| | - Camilla Evangelisti
- CNR Institute of Molecular Genetics Luigi Luca Cavalli-Sforza, Via di Barbiano 1/10, 40136 Bologna, Italy
- IRCCS Istituto Ortopedico Rizzoli, Via Di Barbiano 1/10, 40136 Bologna, Italy
- Correspondence: (F.C.); (C.E.); Tel.: +39-051-209-1581 (F.C.); +39-051-209-1581 (C.E.)
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Kurihara M, Takarada K, Inoue YH. Enhancement of leukemia-like phenotypes in Drosophila mxc mutant larvae due to activation of the RAS-MAP kinase cascade possibly via down-regulation of DE-cadherin. Genes Cells 2020; 25:757-769. [PMID: 33012036 DOI: 10.1111/gtc.12811] [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: 09/03/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 01/10/2023]
Abstract
Loss of mxc gene function in mature hemocytes of Drosophila mxcmbn1 mutant results in malignant hyperplasia in larval hematopoietic tissues termed lymph glands (LGs) owing to over-proliferation of immature cells. This is a useful model for genetic analyses of leukemia progression. To identify other mutations that deteriorate the hyperplasia, we aimed to investigate whether hyper-activation of common signaling cascade enabled to enhance the phenotypes. Ectopic expression of the constitutively active forms of MAPK signaling factors in the mutant increased the hyperplasia and the number of circulating hemocytes, resulting in the production of LG fragments. The LG phenotype was related to the reduced DE-cadherin level in the mutants. Depletion of Drosophila MCRIP, involved in MAPK-induced silencing of cadherin gene expression, exhibited a similar enhancement of the mxcmbn1 phenotypes. Furthermore, expression of MMP1 proteinase that cleaves the extracellular matrix proteins increased in the mutant larvae harboring MAPK cascade activation. Depletion of Mmp1 and that of pnt (required for Mmp1 expression) suppressed the LG hyperplasia. Hence, we speculated that reduction in DE-cadherin level by either down-regulation of MCRIP or up-regulation of MMP1 was involved in the progression of the tumor phenotype. Our findings can contribute to understanding the mechanism underlying human leukemia progression.
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Affiliation(s)
- Masanori Kurihara
- Department of Insect Biomedical Research, Center for Advanced Insect Research Promotion, Kyoto Institute of Technology, Matsugasaki, Kyoto, Japan
| | - Kazuki Takarada
- Department of Insect Biomedical Research, Center for Advanced Insect Research Promotion, Kyoto Institute of Technology, Matsugasaki, Kyoto, Japan
| | - Yoshihiro H Inoue
- Department of Insect Biomedical Research, Center for Advanced Insect Research Promotion, Kyoto Institute of Technology, Matsugasaki, Kyoto, Japan
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20
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Laurent AP, Siret A, Ignacimouttou C, Panchal K, Diop M, Jenni S, Tsai YC, Roos-Weil D, Aid Z, Prade N, Lagarde S, Plassard D, Pierron G, Daudigeos E, Lecluse Y, Droin N, Bornhauser BC, Cheung LC, Crispino JD, Gaudry M, Bernard OA, Macintyre E, Barin Bonnigal C, Kotecha RS, Geoerger B, Ballerini P, Bourquin JP, Delabesse E, Mercher T, Malinge S. Constitutive Activation of RAS/MAPK Pathway Cooperates with Trisomy 21 and Is Therapeutically Exploitable in Down Syndrome B-cell Leukemia. Clin Cancer Res 2020; 26:3307-3318. [PMID: 32220889 DOI: 10.1158/1078-0432.ccr-19-3519] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 02/20/2020] [Accepted: 03/23/2020] [Indexed: 12/20/2022]
Abstract
PURPOSE Children with Down syndrome (constitutive trisomy 21) that develop acute lymphoblastic leukemia (DS-ALL) have a 3-fold increased likelihood of treatment-related mortality coupled with a higher cumulative incidence of relapse, compared with other children with B-cell acute lymphoblastic leukemia (B-ALL). This highlights the lack of suitable treatment for Down syndrome children with B-ALL. EXPERIMENTAL DESIGN To facilitate the translation of new therapeutic agents into clinical trials, we built the first preclinical cohort of patient-derived xenograft (PDX) models of DS-ALL, comprehensively characterized at the genetic and transcriptomic levels, and have proven its suitability for preclinical studies by assessing the efficacy of drug combination between the MEK inhibitor trametinib and conventional chemotherapy agents. RESULTS Whole-exome and RNA-sequencing experiments revealed a high incidence of somatic alterations leading to RAS/MAPK pathway activation in our cohort of DS-ALL, as well as in other pediatric B-ALL presenting somatic gain of the chromosome 21 (B-ALL+21). In murine and human B-cell precursors, activated KRASG12D functionally cooperates with trisomy 21 to deregulate transcriptional networks that promote increased proliferation and self renewal, as well as B-cell differentiation blockade. Moreover, we revealed that inhibition of RAS/MAPK pathway activation using the MEK1/2 inhibitor trametinib decreased leukemia burden in several PDX models of B-ALL+21, and enhanced survival of DS-ALL PDX in combination with conventional chemotherapy agents such as vincristine. CONCLUSIONS Altogether, using novel and suitable PDX models, this study indicates that RAS/MAPK pathway inhibition represents a promising strategy to improve the outcome of Down syndrome children with B-cell precursor leukemia.
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Affiliation(s)
- Anouchka P Laurent
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France.,Université Paris Diderot, Paris, France
| | - Aurélie Siret
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Cathy Ignacimouttou
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Kunjal Panchal
- Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia
| | - M'Boyba Diop
- Gustave Roussy Institute Cancer Campus, Department of Pediatric and Adolescent Oncology, INSERM U1015, Equipe Labellisée Ligue Nationale Contre le Cancer, Université Paris-Saclay, Villejuif, France
| | - Silvia Jenni
- Department of Pediatric Oncology, Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | - Yi-Chien Tsai
- Department of Pediatric Oncology, Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | - Damien Roos-Weil
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Zakia Aid
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Nais Prade
- Centre of Research on Cancer of Toulouse (CRCT), CHU Toulouse, Université Toulouse III, Toulouse, France
| | - Stephanie Lagarde
- Centre of Research on Cancer of Toulouse (CRCT), CHU Toulouse, Université Toulouse III, Toulouse, France
| | | | | | - Estelle Daudigeos
- Gustave Roussy Institute Cancer Campus, Department of Pediatric and Adolescent Oncology, INSERM U1015, Equipe Labellisée Ligue Nationale Contre le Cancer, Université Paris-Saclay, Villejuif, France
| | - Yann Lecluse
- Gustave Roussy Institute Cancer Campus, Department of Pediatric and Adolescent Oncology, INSERM U1015, Equipe Labellisée Ligue Nationale Contre le Cancer, Université Paris-Saclay, Villejuif, France
| | - Nathalie Droin
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Beat C Bornhauser
- Department of Pediatric Oncology, Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | - Laurence C Cheung
- Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia.,School of Pharmacy and Biomedical Sciences, Curtin University, Bentley, Australia
| | - John D Crispino
- Division of Hematology/Oncology, Northwestern University, Chicago, Illinois
| | - Muriel Gaudry
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Olivier A Bernard
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France
| | - Elizabeth Macintyre
- Hematology, Université de Paris, Institut Necker-Enfants Malades and Assistance Publique-Hopitaux de Paris, Paris, France
| | | | - Rishi S Kotecha
- Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia.,School of Pharmacy and Biomedical Sciences, Curtin University, Bentley, Australia.,Department of Clinical Haematology, Oncology and Bone Marrow Transplantation, Perth Children's Hospital, Perth, Australia
| | - Birgit Geoerger
- Gustave Roussy Institute Cancer Campus, Department of Pediatric and Adolescent Oncology, INSERM U1015, Equipe Labellisée Ligue Nationale Contre le Cancer, Université Paris-Saclay, Villejuif, France
| | - Paola Ballerini
- Laboratoire d'Hématologie, Hôpital Trousseau, APHP, Paris-Sorbonne, Paris, France
| | - Jean-Pierre Bourquin
- Department of Pediatric Oncology, Children's Research Centre, University Children's Hospital Zurich, Zurich, Switzerland
| | - Eric Delabesse
- Centre of Research on Cancer of Toulouse (CRCT), CHU Toulouse, Université Toulouse III, Toulouse, France
| | - Thomas Mercher
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France.,Equipe Labellisée Ligue Nationale Contre le Cancer, Paris, France
| | - Sebastien Malinge
- INSERM U1170, Gustave Roussy Institute, Université Paris Saclay, Villejuif, France. .,Telethon Kids Cancer Centre, Telethon Kids Institute, University of Western Australia, Perth, Australia
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21
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Evidence-based review of genomic aberrations in B-lymphoblastic leukemia/lymphoma: Report from the cancer genomics consortium working group for lymphoblastic leukemia. Cancer Genet 2020; 243:52-72. [PMID: 32302940 DOI: 10.1016/j.cancergen.2020.03.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 03/04/2020] [Accepted: 03/17/2020] [Indexed: 12/19/2022]
Abstract
Clinical management and risk stratification of B-lymphoblastic leukemia/ lymphoma (B-ALL/LBL) depend largely on identification of chromosomal abnormalities obtained using conventional cytogenetics and Fluorescence In Situ Hybridization (FISH) testing. In the last few decades, testing algorithms have been implemented to support an optimal risk-oriented therapy, leading to a large improvement in overall survival. In addition, large scale genomic studies have identified multiple aberrations of prognostic significance that are not routinely tested by existing modalities. However, as chromosomal microarray analysis (CMA) and next-generation sequencing (NGS) technologies are increasingly used in clinical management of hematologic malignancies, these abnormalities may be more readily detected. In this article, we have compiled a comprehensive, evidence-based review of the current B-ALL literature, focusing on known and published subtypes described to date. More specifically, we describe the role of various testing modalities in the diagnosis, prognosis, and therapeutic relevance. In addition, we propose a testing algorithm aimed at assisting laboratories in the most effective detection of the underlying genomic abnormalities.
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22
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Ntziachristos P. iAMPlified gene expression offers new insights in B cell precursor leukemia subtype. Leuk Lymphoma 2020; 61:501-503. [PMID: 32008406 DOI: 10.1080/10428194.2019.1695055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Panagiotis Ntziachristos
- Department of Biochemistry and Molecular Genetics, Northwestern University Feinberg School of Medicine, Simpson Querrey Center for Epigenetics, Chicago, IL, USA
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23
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Ivanov Öfverholm I, Zachariadis V, Taylan F, Marincevic-Zuniga Y, Tran AN, Saft L, Nilsson D, Syvänen AC, Lönnerholm G, Harila-Saari A, Nordenskjöld M, Heyman M, Nordgren A, Nordlund J, Barbany G. Overexpression of chromatin remodeling and tyrosine kinase genes in iAMP21-positive acute lymphoblastic leukemia. Leuk Lymphoma 2019; 61:604-613. [PMID: 31640433 DOI: 10.1080/10428194.2019.1678153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Intrachromosomal amplification of chromosome 21 (iAMP21) is a cytogenetic subtype associated with relapse and poor prognosis in pediatric B-cell precursor acute lymphoblastic leukemia (BCP ALL). The biology behind the high relapse risk is unknown and the aim of this study was to further characterize the genomic and transcriptional landscape of iAMP21. Using DNA arrays and sequencing, we could identify rearrangements and aberrations characteristic for iAMP21. RNA sequencing revealed that only half of the genes in the minimal region of amplification (20/45) were differentially expressed in iAMP21. Among them were the top overexpressed genes (p < 0.001) in iAMP21 vs. BCP ALL without iAMP21 and three candidate genes could be identified, the tyrosine kinase gene DYRK1A and chromatin remodeling genes CHAF1B and SON. While overexpression of DYRK1A and CHAF1B is associated with poor prognosis in malignant diseases including myeloid leukemia, this is the first study to show significant correlation with iAMP21-positive ALL.
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Affiliation(s)
- Ingegerd Ivanov Öfverholm
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | | | - Fulya Taylan
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Yanara Marincevic-Zuniga
- Department of Medical Sciences, Molecular Medicine and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Anh Nhi Tran
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Leonie Saft
- Department of Pathology, Karolinska University Hospital, Stockholm, Sweden
| | - Daniel Nilsson
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden.,Science for Life Laboratory, Karolinska Institutet Science Park, Stockholm, Sweden
| | - Ann-Christine Syvänen
- Department of Medical Sciences, Molecular Medicine and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Gudmar Lönnerholm
- Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden
| | - Arja Harila-Saari
- Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Magnus Nordenskjöld
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Mats Heyman
- Department of Women's and Children's Health, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Ann Nordgren
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
| | - Jessica Nordlund
- Department of Medical Sciences, Molecular Medicine and Science for Life Laboratory, Uppsala University, Uppsala, Sweden
| | - Gisela Barbany
- Department of Molecular Medicine and Surgery and Center for Molecular Medicine, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden
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24
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Sinclair PB, Ryan S, Bashton M, Hollern S, Hanna R, Case M, Schwalbe EC, Schwab CJ, Cranston RE, Young BD, Irving JAE, Vora AJ, Moorman AV, Harrison CJ. SH2B3 inactivation through CN-LOH 12q is uniquely associated with B-cell precursor ALL with iAMP21 or other chromosome 21 gain. Leukemia 2019; 33:1881-1894. [PMID: 30816328 PMCID: PMC6756024 DOI: 10.1038/s41375-019-0412-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 01/24/2019] [Indexed: 12/17/2022]
Abstract
In more than 30% of B-cell precursor acute lymphoblastic leukaemia (B-ALL), chromosome 21 sequence is overrepresented through aneuploidy or structural rearrangements, exemplified by intrachromosomal amplification of chromosome 21 (iAMP21). Although frequent, the mechanisms by which these abnormalities promote B-ALL remain obscure. Intriguingly, we found copy number neutral loss of heterozygosity (CN-LOH) of 12q was recurrent in iAMP21-ALL, but never observed in B-ALL without some form of chromosome 21 gain. As a consequence of CN-LOH 12q, mutations or deletions of the adaptor protein, SH2B3, were converted to homozygosity. In patients without CN-LOH 12q, bi-allelic abnormalities of SH2B3 occurred, but only in iAMP21-ALL, giving an overall incidence of 18% in this sub-type. Review of published data confirmed a tight association between overrepresentation of chromosome 21 and both CN-LOH 12q and SH2B3 abnormalities in B-ALL. Despite relatively small patient numbers, preliminary analysis linked 12q abnormalities to poor outcome in iAMP21-ALL (p = 0.03). Homology modelling of a leukaemia-associated SH2 domain mutation and in vitro analysis of patient-derived xenograft cells implicated the JAK/STAT pathway as one likely target for SH2B3 tumour suppressor activity in iAMP21-ALL.
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Affiliation(s)
- Paul B Sinclair
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK.
| | - Sarra Ryan
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Matthew Bashton
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Shaun Hollern
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Rebecca Hanna
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Marian Case
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Edward C Schwalbe
- Faculty of Health and Life Sciences, Northumbria University, Newcastle upon Tyne, UK
| | - Claire J Schwab
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Ruth E Cranston
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Brian D Young
- Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Julie A E Irving
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Ajay J Vora
- Great Ormond Street Hospital for Children NHS trust, London, UK
| | - Anthony V Moorman
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Christine J Harrison
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK.
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25
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Wenzinger C, Williams E, Gru AA. Updates in the Pathology of Precursor Lymphoid Neoplasms in the Revised Fourth Edition of the WHO Classification of Tumors of Hematopoietic and Lymphoid Tissues. Curr Hematol Malig Rep 2018; 13:275-288. [PMID: 29951888 DOI: 10.1007/s11899-018-0456-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE OF REVIEW Acute lymphoblastic leukemias (ALL) are malignant disorders of immature B or T cells that occur characteristically in children, usually under the age of 6 (75%). Approximately 6000 new cases of ALL are diagnosed each year in the USA, 80-85% of which represent B-ALL forms. Most presentations of B-ALL are leukemic, whereas T-ALL presents with a mediastinal mass, with or without leukemic involvement. The revised fourth edition of the World Health Organization (WHO) classification (2017) has introduced some changes in both B and T-ALL. Here, we summarize the categories of lymphoblastic leukemia/lymphomas as defined by the WHO and recent developments in the understanding of this group of hematologic malignancy. RECENT FINDINGS Two provisional categories of B-ALL have now been identified including B-ALL, BCR-ABL1-like, and B-ALL with iAMP21. The Philadelphia chromosome-like B-ALL includes forms of the disease that shares the expression profiling of B-ALL with t(9;22) but lack such rearrangement. The second one shows amplification of part of the chromosome 21. Both entities are associated with worse prognosis. Within the T-ALL group, an early precursor T cell form has now been introduced as a provisional category. Such group demonstrates expression of stem cell and myeloid markers in conjunction with the T cell antigens. The current review summarizes the recent updates to the WHO classification.
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MESH Headings
- Child, Preschool
- Chromosomes, Human, Pair 21/genetics
- Chromosomes, Human, Pair 21/metabolism
- Chromosomes, Human, Pair 9/genetics
- Chromosomes, Human, Pair 9/metabolism
- Female
- Fusion Proteins, bcr-abl/genetics
- Fusion Proteins, bcr-abl/metabolism
- Hematopoiesis
- Humans
- Infant
- Lymphoid Tissue/metabolism
- Lymphoid Tissue/pathology
- Male
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/classification
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/metabolism
- Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/classification
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/metabolism
- Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/pathology
- Translocation, Genetic
- World Health Organization
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Affiliation(s)
| | - Eli Williams
- Department of Pathology, University of Virginia, Charlottesville, VA, USA
| | - Alejandro A Gru
- Departments of Pathology & Dermatology, University of Virginia, 415 Lane Road, Hospital Expansion Bldg Room 3024, Charlottesville, VA, 22908, USA.
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26
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Advances in B-cell Precursor Acute Lymphoblastic Leukemia Genomics. Hemasphere 2018; 2:e53. [PMID: 31723781 PMCID: PMC6746003 DOI: 10.1097/hs9.0000000000000053] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 04/13/2018] [Accepted: 04/20/2018] [Indexed: 01/07/2023] Open
Abstract
In childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL), cytogenetic abnormalities remain important diagnostic and prognostic tools. A number of well-established abnormalities are routinely used in risk stratification for treatment. These include high hyperdiploidy and ETV6-RUNX1 fusion, classified as good risk, while Philadelphia chromosome (Ph) positive ALL and rearrangements of the KMT2A (MLL) gene define poor risk. A poor risk subgroup of intrachromosomal amplification of chromosome 21 (iAMP21-ALL) has been described, in which intensification of therapy has greatly improved outcome. Until recently, no consistent molecular features were defined in around 30% of BCP-ALL (known as B-other-ALL). Recent studies are classifying them into distinct subgroups, some with clear potential for novel therapeutic approaches. For example, in 1 poor risk subtype, known as Ph-like/BCR-ABL1-like ALL, approximately 10% have rearrangements of ABL-class tyrosine kinases: including ABL1, ABL2, PDGFRB, PDGFRA, and CSF1R. Notably, they show a poor response to standard chemotherapy, while they respond to treatment with tyrosine kinase inhibitors, such as imatinib. In other Ph-like-ALL patients, deregulation of the cytokine receptor, CRLF2, and JAK2 rearrangements lead to activation of the JAK-STAT signaling pathway, implicating a specific role for JAK inhibitors in their treatment. Other novel subgroups within B-other-ALL are defined by the IGH-DUX4 translocation, related to deletions of the ERG gene and a good outcome, while fusions involving ZNF384, MEF2D, and intragenic PAX5 amplification (PAX5AMP) are linked to a poor outcome. Continued genetic screening will eventually lead to complete genomic classification of BCP-ALL and define more molecular targets for less toxic therapies.
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27
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Montaño A, Forero-Castro M, Marchena-Mendoza D, Benito R, Hernández-Rivas JM. New Challenges in Targeting Signaling Pathways in Acute Lymphoblastic Leukemia by NGS Approaches: An Update. Cancers (Basel) 2018; 10:cancers10040110. [PMID: 29642462 PMCID: PMC5923365 DOI: 10.3390/cancers10040110] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 04/03/2018] [Accepted: 04/05/2018] [Indexed: 12/18/2022] Open
Abstract
The identification and study of genetic alterations involved in various signaling pathways associated with the pathogenesis of acute lymphoblastic leukemia (ALL) and the application of recent next-generation sequencing (NGS) in the identification of these lesions not only broaden our understanding of the involvement of various genetic alterations in the pathogenesis of the disease but also identify new therapeutic targets for future clinical trials. The present review describes the main deletions, amplifications, sequence mutations, epigenetic lesions, and new structural DNA rearrangements detected by NGS in B-ALL and T-ALL and their clinical importance for therapeutic procedures. We reviewed the molecular basis of pathways including transcriptional regulation, lymphoid differentiation and development, TP53 and the cell cycle, RAS signaling, JAK/STAT, NOTCH, PI3K/AKT/mTOR, Wnt/β-catenin signaling, chromatin structure modifiers, and epigenetic regulators. The implementation of NGS strategies has enabled important mutated genes in each pathway, their associations with the genetic subtypes of ALL, and their outcomes, which will be described further. We also discuss classic and new cryptic DNA rearrangements in ALL identified by mRNA-seq strategies. Novel cooperative abnormalities in ALL could be key prognostic and/or predictive biomarkers for selecting the best frontline treatment and for developing therapies after the first relapse or refractory disease.
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Affiliation(s)
- Adrián Montaño
- IBSAL, IBMCC, Universidad de Salamanca-CSIC, Cancer Research Center, 37007 Salamanca, Spain.
| | - Maribel Forero-Castro
- Escuela de Ciencias Biológicas, Grupo de investigación en Ciencias Biomédicas (GICBUPTC), Universidad Pedagógica y Tecnológica de Colombia, Tunja 150001, Colombia.
| | - Darnel Marchena-Mendoza
- IBSAL, IBMCC, Universidad de Salamanca-CSIC, Cancer Research Center, 37007 Salamanca, Spain.
- Escuela de Ciencias Biológicas, Grupo de investigación en Ciencias Biomédicas (GICBUPTC), Universidad Pedagógica y Tecnológica de Colombia, Tunja 150001, Colombia.
| | - Rocío Benito
- IBSAL, IBMCC, Universidad de Salamanca-CSIC, Cancer Research Center, 37007 Salamanca, Spain.
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28
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Sinclair PB, Blair HH, Ryan SL, Buechler L, Cheng J, Clayton J, Hanna R, Hollern S, Hawking Z, Bashton M, Schwab CJ, Jones L, Russell LJ, Marr H, Carey P, Halsey C, Heidenreich O, Moorman AV, Harrison CJ. Dynamic clonal progression in xenografts of acute lymphoblastic leukemia with intrachromosomal amplification of chromosome 21. Haematologica 2018; 103:634-644. [PMID: 29449437 PMCID: PMC5865429 DOI: 10.3324/haematol.2017.172304] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 02/08/2018] [Indexed: 01/12/2023] Open
Abstract
Intrachromosomal amplification of chromosome 21 is a heterogeneous chromosomal rearrangement occurring in 2% of cases of childhood precursor B-cell acute lymphoblastic leukemia. These abnormalities are too complex to engineer faithfully in animal models and are unrepresented in leukemia cell lines. As a resource for future functional and preclinical studies, we have created xenografts from the leukemic blasts of patients with intrachromosomal amplification of chromosome 21 and characterized them by in-vivo and ex-vivo luminescent imaging, flow immunophenotyping, and histological and ultrastructural analyses of bone marrow and the central nervous system. Investigation of up to three generations of xenografts revealed phenotypic evolution, branching genomic architecture and, compared with other B-cell acute lymphoblastic leukemia genetic subtypes, greater clonal diversity of leukemia-initiating cells. In support of intrachromosomal amplification of chromosome 21 as a primary genetic abnormality, it was always retained through generations of xenografts, although we also observed the first example of structural evolution of this rearrangement. Clonal segregation in xenografts revealed convergent evolution of different secondary genomic abnormalities implicating several known tumor suppressor genes and a region, containing the B-cell adaptor, PIK3AP1, and nuclear receptor co-repressor, LCOR, in the progression of B-cell acute lymphoblastic leukemia. Tracking of mutations in patients and derived xenografts provided evidence for co-operation between abnormalities activating the RAS pathway in B-cell acute lymphoblastic leukemia and for their aggressive clonal expansion in the xeno-environment. Bi-allelic loss of the CDKN2A/B locus was recurrently maintained or emergent in xenografts and also strongly selected as RNA sequencing demonstrated a complete absence of reads for genes associated with the deletions.
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Affiliation(s)
- Paul B Sinclair
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Helen H Blair
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Sarra L Ryan
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Lars Buechler
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Joanna Cheng
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Jake Clayton
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Rebecca Hanna
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Shaun Hollern
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Zoe Hawking
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Matthew Bashton
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Claire J Schwab
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Lisa Jones
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Lisa J Russell
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Helen Marr
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Peter Carey
- Department of Clinical Haematology, Royal Victoria Infirmary, Newcastle-upon-Tyne, UK
| | - Christina Halsey
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, UK
| | - Olaf Heidenreich
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Anthony V Moorman
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
| | - Christine J Harrison
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle-upon-Tyne, UK
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Liang DC, Chen SH, Liu HC, Yang CP, Yeh TC, Jaing TH, Hung IJ, Hou JY, Lin TH, Lin CH, Shih LY. Mutational status of NRAS, KRAS, and PTPN11 genes is associated with genetic/cytogenetic features in children with B-precursor acute lymphoblastic leukemia. Pediatr Blood Cancer 2018; 65. [PMID: 28853218 DOI: 10.1002/pbc.26786] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/06/2017] [Accepted: 08/07/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND We aimed to investigate the frequencies and the association with genetic/cytogenetic abnormalities as well as prognostic relevance of RAS pathway mutations in Taiwanese children with B-precursor acute lymphoblastic leukemia (ALL), the largest cohort in Asians. PROCEDURE Between 1995 and 2012, marrow samples at diagnosis from 535 children were studied for NRAS, KRAS, and PTPN11 mutations. The mutational status of each gene was correlated with the clinico-hematological features, recurrent genetic abnormalities, and outcomes for those treated with TPOG-ALL-2002 protocol (n = 346). RESULTS The frequencies of NRAS, KRAS, and PTPN11 mutations were 10.8% (57/530), 10.2% (54/530), and 3.0% (16/526), respectively. NRAS mutations were associated with a higher frequency of hyperdiploidy (P = 0.01) and lower frequency of ETV6-RUNX1 (P < 0.01), whereas KRAS mutations were associated with younger age (P < 0.01), a higher frequency of KMT2A rearranged (P < 0.01) but no significant difference if infants with ALL were excluded, and inferior event-free survival (66.6% vs. 80.5%, P = 0.04). None of patients with TCF3-PBX1 had KRAS mutation (P = 0.02). CONCLUSIONS Our study showed that the frequency of KRAS mutations in Taiwan was significantly higher than that reported in Caucasians. The occurrence of RAS pathway mutations was associated with recurrent genetic/cytogenetic abnormalities in pediatric B-precursor ALL.
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Affiliation(s)
- Der-Cherng Liang
- Division of Pediatric Hematology-Oncology, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan
| | - Shih-Hsiang Chen
- Division of Hematology-Oncology, Department of Pediatrics, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Hsi-Che Liu
- Division of Pediatric Hematology-Oncology, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan
| | - Chao-Ping Yang
- Division of Hematology-Oncology, Department of Pediatrics, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Ting-Chi Yeh
- Division of Pediatric Hematology-Oncology, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan
| | - Tang-Her Jaing
- Division of Hematology-Oncology, Department of Pediatrics, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Iou-Jih Hung
- Division of Hematology-Oncology, Department of Pediatrics, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Jen-Yin Hou
- Division of Pediatric Hematology-Oncology, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan
| | - Tung-Huei Lin
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Hui Lin
- Division of Pediatric Hematology-Oncology, Mackay Memorial Hospital and Mackay Medical College, Taipei, Taiwan
| | - Lee-Yung Shih
- Division of Hematology-Oncology, Department of Internal Medicine, Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan, Taiwan
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O’Connor D, Enshaei A, Bartram J, Hancock J, Harrison CJ, Hough R, Samarasinghe S, Schwab C, Vora A, Wade R, Moppett J, Moorman AV, Goulden N. Genotype-Specific Minimal Residual Disease Interpretation Improves Stratification in Pediatric Acute Lymphoblastic Leukemia. J Clin Oncol 2018; 36:34-43. [PMID: 29131699 PMCID: PMC5756322 DOI: 10.1200/jco.2017.74.0449] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Purpose Minimal residual disease (MRD) and genetic abnormalities are important risk factors for outcome in acute lymphoblastic leukemia. Current risk algorithms dichotomize MRD data and do not assimilate genetics when assigning MRD risk, which reduces predictive accuracy. The aim of our study was to exploit the full power of MRD by examining it as a continuous variable and to integrate it with genetics. Patients and Methods We used a population-based cohort of 3,113 patients who were treated in UKALL2003, with a median follow-up of 7 years. MRD was evaluated by polymerase chain reaction analysis of Ig/TCR gene rearrangements, and patients were assigned to a genetic subtype on the basis of immunophenotype, cytogenetics, and fluorescence in situ hybridization. To examine response kinetics at the end of induction, we log-transformed the absolute MRD value and examined its distribution across subgroups. Results MRD was log normally distributed at the end of induction. MRD distributions of patients with distinct genetic subtypes were different ( P < .001). Patients with good-risk cytogenetics demonstrated the fastest disease clearance, whereas patients with high-risk genetics and T-cell acute lymphoblastic leukemia responded more slowly. The risk of relapse was correlated with MRD kinetics, and each log reduction in disease level reduced the risk by 20% (hazard ratio, 0.80; 95% CI, 0.77 to 0.83; P < .001). Although the risk of relapse was directly proportional to the MRD level within each genetic risk group, absolute relapse rate that was associated with a specific MRD value or category varied significantly by genetic subtype. Integration of genetic subtype-specific MRD values allowed more refined risk group stratification. Conclusion A single threshold for assigning patients to an MRD risk group does not reflect the response kinetics of the different genetic subtypes. Future risk algorithms should integrate genetics with MRD to accurately identify patients with the lowest and highest risk of relapse.
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Affiliation(s)
- David O’Connor
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Amir Enshaei
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Jack Bartram
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Jeremy Hancock
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Christine J. Harrison
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Rachael Hough
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Sujith Samarasinghe
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Claire Schwab
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Ajay Vora
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Rachel Wade
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - John Moppett
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Anthony V. Moorman
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
| | - Nick Goulden
- David O’Connor, Jack Bartram, Sujith Samarasinghe, Ajay Vora, and Nick Goulden, Great Ormond Street Hospital; Rachael Hough, University College Hospital, London; Amir Enshaei, Christine J. Harrison, Claire Schwab, and Anthony V. Moorman, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne; Jeremy Hancock, North Bristol National Health Service Trust; John Moppett, Royal Hospital for Sick Children, Bristol; Ajay Vora, Sheffield Children’s Hospital, Sheffield; Rachel Wade, Medical Research Council, University of Oxford, Oxford, United Kingdom; and Nick Goulden, Trapehade, Monferran-Plavès, France
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31
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The role of RAS mutations in MLL-rearranged leukaemia: A path to intervention? Biochim Biophys Acta Rev Cancer 2017; 1868:521-526. [PMID: 29056538 DOI: 10.1016/j.bbcan.2017.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 10/17/2017] [Accepted: 10/18/2017] [Indexed: 12/31/2022]
Abstract
Childhood acute lymphoblastic leukaemia (ALL) with MLL rearrangement (MLL-r) is an aggressive disease still associated with a high mortality rate. Recent investigations have identified co-operating mutations in the RAS pathway and although the functional consequences of these mutations are not yet fully understood, aberrant regulation of RAS pathway signalling at both transcriptional and protein levels is observed. Studies investigating the efficacy of specific inhibitors of this pathway, e.g. MEK-inhibitors, have also achieved encouraging results. In this context, this mini-review summarizes the available data surrounding MLL-r infant ALL with RAS mutation in relation to other well-known features of this intriguing disease.
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32
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Sadras T, Heatley SL, Kok CH, Dang P, Galbraith KM, McClure BJ, Muskovic W, Venn NC, Moore S, Osborn M, Revesz T, Moore AS, Hughes TP, Yeung D, Sutton R, White DL. Differential expression of MUC4, GPR110 and IL2RA defines two groups of CRLF2-rearranged acute lymphoblastic leukemia patients with distinct secondary lesions. Cancer Lett 2017; 408:92-101. [PMID: 28866095 DOI: 10.1016/j.canlet.2017.08.034] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 08/15/2017] [Accepted: 08/24/2017] [Indexed: 12/26/2022]
Abstract
CRLF2-rearrangements (CRLF2-r) occur frequently in Ph-like B-ALL, a high-risk ALL sub-type characterized by a signaling profile similar to Ph + ALL, however accumulating evidence indicates genetic heterogeneity within CRLF2-r ALL. We performed thorough genomic characterization of 35 CRLF2-r cases (P2RY8-CRLF2 n = 18; IGH-CRLF2 n = 17). Activating JAK2 mutations were present in 34% of patients, and a CRLF2-F232C mutation was identified in an additional 17%. IKZF1 deletions were detected in 63% of cases. The majority of patients (26/35) classified as Ph-like, and these were characterized by significantly higher levels of MUC4, GPR110 and IL2RA/CD25. In addition, Ph-like CRLF2-r samples were significantly enriched for IKZF1 deletions, JAK2/CRLF2 mutations and increased expression of JAK/STAT target genes (CISH, SOCS1), suggesting that mutation-driven CRLF2/JAK2 activation is more frequent in this sub-group. Less is known about the genomics of CRLF2-r cases lacking JAK2-pathway mutations, but KRAS/NRAS mutations were identified in 4/9 non-Ph-like samples. This work highlights the heterogeneity of secondary lesions which may arise and influence intracellular-pathway activation in CRLF2-r patients, and importantly presents distinct therapeutic targets within a group of patients harboring identical primary translocations, for whom efficient directed therapies are currently lacking.
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Affiliation(s)
- Teresa Sadras
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia; Discipline of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Susan L Heatley
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia; Discipline of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Chung H Kok
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia; Discipline of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Phuong Dang
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
| | - Kate M Galbraith
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
| | - Barbara J McClure
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia
| | - Walter Muskovic
- Molecular Diagnostics Program, Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW, Australia
| | - Nicola C Venn
- Molecular Diagnostics Program, Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW, Australia
| | - Sarah Moore
- Department of Genetic Pathology, SA Pathology, Adelaide, SA, Australia
| | - Michael Osborn
- SA Pathology at Women's & Children's Hospital, Adelaide, SA, Australia; Australian Genomic Health Alliance, Adelaide, SA, Australia
| | - Tamas Revesz
- SA Pathology at Women's & Children's Hospital, Adelaide, SA, Australia
| | - Andrew S Moore
- The University of Queensland Diamantina Institute, UQ Child Health Research Centre, The University of Queensland, Brisbane, QLD, Australia; Oncology Services Group, Children's Health Queensland Hospital and Health Service, Brisbane, QLD, Australia
| | - Timothy P Hughes
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia; Discipline of Medicine, University of Adelaide, Adelaide, SA, Australia; Department of Haematology, SA Pathology, Adelaide, SA, Australia
| | - David Yeung
- Department of Haematology, SA Pathology, Adelaide, SA, Australia
| | - Rosemary Sutton
- Molecular Diagnostics Program, Children's Cancer Institute, Lowy Cancer Research Centre, UNSW Sydney, NSW, Australia; Australian Genomic Health Alliance, Adelaide, SA, Australia; School of Women's and Children's Health, Medicine, University of NSW, Sydney, NSW, Australia
| | - Deborah L White
- Cancer Theme, South Australian Health & Medical Research Institute, Adelaide, SA, Australia; Discipline of Medicine, University of Adelaide, Adelaide, SA, Australia; Australian Genomic Health Alliance, Adelaide, SA, Australia.
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33
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Russell LJ, Jones L, Enshaei A, Tonin S, Ryan SL, Eswaran J, Nakjang S, Papaemmanuil E, Tubio JMC, Fielding AK, Vora A, Campbell PJ, Moorman AV, Harrison CJ. Characterisation of the genomic landscape of CRLF2-rearranged acute lymphoblastic leukemia. Genes Chromosomes Cancer 2017; 56:363-372. [PMID: 28033648 PMCID: PMC5396319 DOI: 10.1002/gcc.22439] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 12/24/2016] [Accepted: 12/25/2016] [Indexed: 12/31/2022] Open
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 aimed to determine the clinical and genetic landscape of those with IGH-CRLF2 or P2RY8-CRLF2 (CRLF2-r) using multiple genomic approaches. Clinical and demographic features of CRLF2-r patients were characteristic of B-ALL. Patients with IGH-CRLF2 were older (14 y vs. 4 y, P < .001), while the incidence of CRLF2-r among Down syndrome patients was high (50/161, 31%). CRLF2-r co-occurred with primary chromosomal rearrangements but the majority (111/161, 69%) had B-other ALL. Copy number alteration (CNA) profiles were similar to B-other ALL, although CRLF2-r patients harbored higher frequencies of IKZF1 (60/138, 43% vs. 77/1351, 24%) and BTG1 deletions (20/138, 15% vs. 3/1351, 1%). There were significant differences in CNA profiles between IGH-CRLF2 and P2RY8-CRLF2 patients: IKZF1 (25/35, 71% vs. 36/108, 33%, P < .001), BTG1 (11/35, 31% vs. 10/108, 9%, P =.004), and ADD3 deletions (9/19, 47% vs. 5/38, 13%, P =.008). A novel gene fusion, USP9X-DDX3X, was discovered in 10/54 (19%) of patients. Pathway analysis of the mutational profile revealed novel involvement for focal adhesion. Although the functional relevance of many of these abnormalities are unknown, they likely activate additional pathways, which may represent novel therapeutic targets.
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Affiliation(s)
- Lisa J. Russell
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Lisa Jones
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Amir Enshaei
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Stefano Tonin
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Sarra L. Ryan
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Jeyanthy Eswaran
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Sirintra Nakjang
- Bioinformatics Support Unit, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Elli Papaemmanuil
- Department of Epidemiology‐BiostatisticsMemorial Sloan Kettering Cancer CenterUSA
- Cancer Genome ProjectWellcome Trust Sanger InstituteHinxtonUK
| | | | | | - Ajay Vora
- Department of HaematologySheffield Children's HospitalSheffieldUK
| | | | - Anthony V. Moorman
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
| | - Christine J. Harrison
- Leukaemia Research Cytogenetics Group, Northern Institute for Cancer Research, Newcastle UniversityNewcastle‐upon‐TyneUK
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Dixon ZA, Nicholson L, Zeppetzauer M, Matheson E, Sinclair P, Harrison CJ, Irving JAE. CREBBP knockdown enhances RAS/RAF/MEK/ERK signaling in Ras pathway mutated acute lymphoblastic leukemia but does not modulate chemotherapeutic response. Haematologica 2016; 102:736-745. [PMID: 27979926 PMCID: PMC5395114 DOI: 10.3324/haematol.2016.145177] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Accepted: 12/13/2016] [Indexed: 12/05/2022] Open
Abstract
Relapsed acute lymphoblastic leukemia is the most common cause of cancer-related mortality in young people and new therapeutic strategies are needed to improve outcome. Recent studies have shown that heterozygous inactivating mutations in the histone acetyl transferase, CREBBP, are particularly frequent in relapsed childhood acute lymphoblastic leukemia and associated with a hyperdiploid karyotype and KRAS mutations. To study the functional impact of CREBBP haploinsufficiency in acute lymphoblastic leukemia, RNA interference was used to knock down expression of CREBBP in acute lymphoblastic leukemia cell lines and various primagraft acute lymphoblastic leukemia cells. We demonstrate that attenuation of CREBBP results in reduced acetylation of histone 3 lysine 18, but has no significant impact on cAMP-dependent target gene expression. Impaired induction of glucocorticoid receptor targets was only seen in 1 of 4 CREBBP knockdown models, and there was no significant difference in glucocorticoid-induced apoptosis, sensitivity to other acute lymphoblastic leukemia chemotherapeutics or histone deacetylase inhibitors. Importantly, we show that CREBBP directly acetylates KRAS and that CREBBP knockdown enhances signaling of the RAS/RAF/MEK/ERK pathway in Ras pathway mutated acute lymphoblastic leukemia cells, which are still sensitive to MEK inhibitors. Thus, CREBBP mutations might assist in enhancing oncogenic RAS signaling in acute lymphoblastic leukemia but do not alter response to MEK inhibitors.
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Affiliation(s)
- Zach A Dixon
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | | | - Martin Zeppetzauer
- Children's Cancer Research Institute (CCRI), Leukemia Biology Group, Vienna, Austria
| | - Elizabeth Matheson
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Paul Sinclair
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Christine J Harrison
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
| | - Julie A E Irving
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, UK
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35
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Targeting High Dynamin-2 (DNM2) Expression by Restoring Ikaros Function in Acute Lymphoblastic Leukemia. Sci Rep 2016; 6:38004. [PMID: 27885263 PMCID: PMC5122860 DOI: 10.1038/srep38004] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/02/2016] [Indexed: 11/15/2022] Open
Abstract
Dynamin-2 (DNM2) is a GTPase essential for intracellular vesicle formation and trafficking, cytokinesis and receptor endocytosis. Mutations in DNM2 are common in early T-cell precursor acute lymphoblastic leukemia. However, DNM2 expression in other types of ALL are not reported. We studied DNM2 mRNA level in adults with B- and T-cell ALL. We found DNM2 is more highly expressed compared with normals in both forms of ALL. High DNM2 expression is associated with some clinical and laboratory features, inferior outcomes and with leukaemia cell proliferation. We also found Ikaros directly binds the DNM2 promoter and suppresses DNM2 expression. Consequently IKZF1 deletion is associated with high DNM2 expression. Conversely, casein kinase-2 (CK2)-inhibitor increases Ikaros function thereby inhibiting DNM2 expression. Inhibiting DNM2 suppresses proliferation of leukemia cells and synergizes with CK2 inhibition. Our data indicate high DNM2 expression is associated with Ikaros dysregulation and may be important in the development of B-ALL.
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36
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Petrov I, Suntsova M, Mutorova O, Sorokin M, Garazha A, Ilnitskaya E, Spirin P, Larin S, Zhavoronkov A, Kovalchuk O, Prassolov V, Roumiantsev A, Buzdin A. Molecular pathway activation features of pediatric acute myeloid leukemia (AML) and acute lymphoblast leukemia (ALL) cells. Aging (Albany NY) 2016; 8:2936-2947. [PMID: 27870639 PMCID: PMC5182073 DOI: 10.18632/aging.101102] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Accepted: 11/04/2016] [Indexed: 12/11/2022]
Abstract
Acute lymphoblast leukemia (ALL) is characterized by overproduction of immature white blood cells in the bone marrow. ALL is most common in the childhood and has high (>80%) cure rate. In contrast, acute myeloid leukemia (AML) has far greater mortality rate than the ALL and is most commonly affecting older adults. However, AML is a leading cause of childhood cancer mortality. In this study, we compare gene expression and molecular pathway activation patterns in three normal blood, seven pediatric ALL and seven pediatric AML bone marrow samples. We identified 172/94 and 148/31 characteristic gene expression/pathway activation signatures, clearly distinguishing pediatric ALL and AML cells, respectively, from the normal blood. The pediatric AML and ALL cells differed by 139/34 gene expression/pathway activation biomarkers. For the adult 30 AML and 17 normal blood samples, we found 132/33 gene expression/pathway AML-specific features, of which only 7/2 were common for the adult and pediatric AML and, therefore, age-independent. At the pathway level, we found more differences than similarities between the adult and pediatric forms. These findings suggest that the adult and pediatric AMLs may require different treatment strategies.
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MESH Headings
- Adolescent
- Adult
- Age Factors
- Biomarkers, Tumor
- Bone Marrow
- Case-Control Studies
- Child
- Child, Preschool
- Female
- Gene Expression
- Gene Expression Profiling
- Humans
- Infant
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/mortality
- Leukemia, Myeloid, Acute/pathology
- Male
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/blood
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/pathology
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Affiliation(s)
- Ivan Petrov
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- First Oncology Research and Advisory Center, Moscow, 117997, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, 141700, Russia
| | - Maria Suntsova
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- Group for Genomic Regulation of Cell Signaling Systems, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, 117997, Russia
| | - Olga Mutorova
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- Morozov Pediatric Clinical Hospital, Moscow, 101000, Russia
| | - Maxim Sorokin
- National Research Centre “Kurchatov Institute”, Centre for Convergence of Nano-, Bio-, Information and Cognitive Sciences and Technologies, Moscow, 123182, Russia
- Pathway Pharmaceuticals, Wan Chai, Hong Kong, Hong Kong SAR
| | - Andrew Garazha
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- Moscow Institute of Physics and Technology, Dolgoprudny, Moscow region, 141700, Russia
| | - Elena Ilnitskaya
- First Oncology Research and Advisory Center, Moscow, 117997, Russia
| | - Pavel Spirin
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Mosow, Russia,119991
| | - Sergey Larin
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
| | - Alex Zhavoronkov
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- First Oncology Research and Advisory Center, Moscow, 117997, Russia
| | - Olga Kovalchuk
- Department of Biological Sciences, University of Lethbridge, Lethbridge, AB, T1K3M4, Canada
| | - Vladimir Prassolov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Mosow, Russia,119991
| | - Alexander Roumiantsev
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
| | - Anton Buzdin
- D. Rogachev Federal Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, 117198, Russia
- Group for Genomic Regulation of Cell Signaling Systems, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, 117997, Russia
- National Research Centre “Kurchatov Institute”, Centre for Convergence of Nano-, Bio-, Information and Cognitive Sciences and Technologies, Moscow, 123182, Russia
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