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Tolomeo D, Agostini A, Solimando AG, Cunsolo CL, Cimarosto L, Palumbo O, Palumbo P, Carella M, Hernández-Sánchez M, Hernández-Rivas JM, Storlazzi CT. A t(4;13)(q21;q14) translocation in B-cell chronic lymphocytic leukemia causing concomitant homozygous DLEU2/miR15a/miR16-1 and heterozygous ARHGAP24 deletions. Cancer Genet 2023; 272-273:16-22. [PMID: 36641997 DOI: 10.1016/j.cancergen.2023.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 12/06/2022] [Accepted: 01/05/2023] [Indexed: 01/09/2023]
Abstract
13q14 deletion is the most recurrent chromosomal aberration reported in B-CLL, having a favorable prognostic significance when occurring as the sole cytogenetic alteration. However, its clinical outcome is also related to the deletion size and number of cells with the del(13)(q14) deletion. In 10% of cases, 13q14 deletion arises following a translocation event with multiple partner chromosomes, whose oncogenic impact has not been investigated so far due to the assumption of a possible role as a passenger mutation. Here, we describe a t(4;13)(q21;q14) translocation occurring in a B-CLL case from the diagnosis to spontaneous regression. FISH and SNP-array analyses revealed a heterozygous deletion at 4q21, leading to the loss of the Rho GTPase Activating Protein 24 (ARHGAP24) tumor suppressor gene, down-regulated in the patient RNA, in addition to the homozygous deletion at 13q14 involving DLEU2/miR15a/miR16-1 genes. Interestingly, targeted Next Generation Sequencing analysis of 54 genes related to B-CLL indicated no additional somatic mutation in the patient, underlining the relevance of this t(4;13)(q21;q14) aberration in the leukemogenic process. In all tested RNA samples, RT-qPCR experiments assessed the downregulation of the PCNA, MKI67, and TOP2A proliferation factor genes, and the BCL2 anti-apoptotic gene as well as the up-regulation of TP53 and CDKN1A tumor suppressors, indicating a low proliferation potential of the cells harboring the aberration. In addition, RNA-seq analyses identified four chimeric transcripts (ATG4B::PTMA, OAZ1::PTMA, ZFP36::PTMA, and PIM3::BRD1), two of which (ATG4B::PTMA and ZFP36::PTMA) failed to be detected at the remission, suggesting a possible transcriptional remodeling during the disease course. Overall, our results indicate a favorable prognostic impact of the described chromosomal aberration, as it arises a permissive molecular landscape to the spontaneous B-CLL regression in the patient, highlighting ARHGAP24 as a potentially relevant concurrent alteration to the 13q14 deletion in delineating B-CLL disease evolution.
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Affiliation(s)
- Doron Tolomeo
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy
| | - Antonio Agostini
- Department of Precision and Regenerative Medicine and Jonic area, University of Bari Aldo Moro, Bari, Italy
| | - Antonio Giovanni Solimando
- Department of Precision and Regenerative Medicine and Jonic area, University of Bari Aldo Moro, Bari, Italy
| | | | | | - Orazio Palumbo
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo (Foggia), Italy
| | - Pietro Palumbo
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo (Foggia), Italy
| | - Massimo Carella
- Division of Medical Genetics, Fondazione IRCCS-Casa Sollievo della Sofferenza, San Giovanni Rotondo (Foggia), Italy
| | - Maria Hernández-Sánchez
- Universidad de Salamanca, IBSAL, Centro de Investigación del Cáncer, IBMCC-CSIC, Salamanca, Spain; Departamento de Bioquímica y Biología Molecular, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Clelia Tiziana Storlazzi
- Department of Biosciences, Biotechnology and Environment, University of Bari Aldo Moro, Bari, Italy.
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2
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Durak Aras B, Isik S, Uskudar Teke H, Aslan A, Yavasoglu F, Gulbas Z, Demirkan F, Ozen H, Cilingir O, Inci NS, Gunden G, Bulduk T, Erzurumluoglu Gokalp E, Kocagil S, Artan S, Akay OM. Which prognostic marker is responsible for the clinical heterogeneity in CLL with 13q deletion? Mol Cytogenet 2021; 14:2. [PMID: 33407772 PMCID: PMC7788884 DOI: 10.1186/s13039-020-00522-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 12/09/2020] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND Deletion of 13q14 [del(13q)] is the most common cytogenetic change (50%) in chronic lymphoblastic leukemia (CLL), and it is a good prognostic factor if it is detected as a sole aberration by FISH. However, it is observed the clinical course of CLL cases with del(13q) are quite heterogeneous and the responsible for this clinical heterogeneity has not been established yet. Some investigators suggest type II deletion (include RB1 gene) is associated with more aggressive clinical course. Also, it is suggested that the deletion burden and the deletion type have a prognostic effect. In this study, we aimed to investigate the effect of RB1 gene deletion, deletion burden and deletion type on overall survival (OS), disease stage and time to first treatment (TTFT) in patients with isolated del(3q). Sixty eight cases, detected isolated del(13q) were included in the study. Also, RB1 deletion was analyzed from peripheral blood of them using FISH. RESULTS RB1 deletion was detected in 41% of patients, but there was no statistically significant difference between RB1 deletion and TTFT, stage and OS (p > 0.05). At same time, statistically significant difference was detected between high del(13q) (> 80%) and TTFT (p < 0.05). CONCLUSION The statistical analysis of our data regarding to the association between RB1 deletion and deletion type, TTFT, disease stage, and OS has not confirmed type II deletion or biallelic deletion cause poor prognosis. However, our data supports the deletion burden has a prognostic effect. More studies are needed to elucidate the cause of the clinical heterogeneity of CLL cases with del(13q).
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Affiliation(s)
- Beyhan Durak Aras
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey.
| | - Sevgi Isik
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Hava Uskudar Teke
- Department of Hematology, Faculty of Medicine, University of Eskisehir Osmangazi, Eskisehir, Turkey
| | - Abdulvahap Aslan
- Department of Hematology, Private Umit Hospital, Eskisehir, Turkey
| | - Filiz Yavasoglu
- Department of Hematology, Faculty of Medicine, University of Afyonkarahisar Health Sciences, Afyon, Turkey
| | - Zafer Gulbas
- Department of Hematology, Anadolu Medical Center, Kocaeli, Turkey
| | - Fatih Demirkan
- Department of Oncology, Faculty of Medicine, University of Dokuz Eylul, Izmir, Turkey
| | - Hulya Ozen
- Department of Biostatistics, Faculty of Medicine, University of Eskisehir Osmangazi, Eskisehir, Turkey
| | - Oguz Cilingir
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Nur Sena Inci
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Gulcin Gunden
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Tuba Bulduk
- Department of Hematology, Faculty of Medicine, University of Eskisehir Osmangazi, Eskisehir, Turkey
| | - Ebru Erzurumluoglu Gokalp
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Sinem Kocagil
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Sevilhan Artan
- Department of Medical Genetics, Faculty of Medicine, University of Eskisehir Osmangazi, Professor Dr. Nabi Avcı Street, No. 4, Eskisehir, Buyukdere, 26040, Turkey
| | - Olga Meltem Akay
- Department of Hematology, Faculty of Medicine, University of Koc, Istanbul, Turkey
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Abstract
PURPOSE OF REVIEW Chronic lymphocytic leukemia is heterogeneous disease characterized by a variable clinical course that is greatly influenced by various patient and disease characteristics. Over the last two decades, advent of new diagnostic methodologies has led to the identification of several factors of prognostic and predictive relevance. Furthermore, recent advances in next-generation sequencing techniques has identified recurrent novel mutations in NOTCH1, SF3B1, BIRC3, and ATM genes whose role as prognostic and predictive markers is currently being investigated. These biologic markers carry new prognostic information and their incorporation into prognostic scoring systems will likely lead to refined multi-parameter risk models. RECENT FINDINGS While the prognostic impact of many of the most commonly used markers on clinical outcomes in patients treated with chemo-immunotherapy is well documented, it is important to review their predictive and prognostic role in the era of novel targeted therapies. This article will discuss the currently available information on the clinical relevance of prognostic markers in patients treated with novel targeted therapies.
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Affiliation(s)
- Prajwal Boddu
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 428, Houston, TX, 77030, USA
| | - Alessandra Ferrajoli
- Department of Leukemia, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Unit 428, Houston, TX, 77030, USA.
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4
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Miao Y, Miao Y, Shi K, Sun Q, Zhao SS, Xia Y, Qin SC, Qiu HR, Yang H, Xu H, Zhu HY, Wu JZ, Wu W, Cao L, Wang L, Fan L, Xu W, Li JY. A higher percentage of cells with 13q deletion predicts worse outcome in Chinese patients with chronic lymphocytic leukemia carrying isolated 13q deletion. Ann Hematol 2018; 97:1663-1669. [PMID: 29736587 DOI: 10.1007/s00277-018-3359-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Accepted: 04/28/2018] [Indexed: 01/05/2023]
Abstract
Previous studies showed that, in chronic lymphocytic leukemia (CLL) patients with isolated 13q deletion (13q-), those carrying higher percentage of leukemic cells with 13q- had more aggressive diseases. However, the prognostic value of the percentage of leukemic cells with 13q- in Chinese CLL patients with isolated 13q- remained to be determined. Using interphase fluorescence in situ hybridization (FISH), we identified 82 patients (25.4%) with isolated 13q deletion from a cohort of 323 untreated CLL patients. Among patients with isolated 13q deletion, cases of 13q- cells ≥ 80% (13q-H) had significantly shorter time to first treatment (TTT) than those of < 80% 13q- cells (13q-L) (median 11 vs. 92 months, p = 0.0016). A higher lymphocyte count (p = 0.0650) was associated with 13q-H, while other clinical, immunophenotypic, or molecular features did not differ between patients with 13q-H and 13q-L. Although 13q-H only showed marginal significance in multivariate analysis of TTT (hazards ratio 2.007; 95% confidence interval 0.975-4.129; p = 0.059), it helped refine the risk stratification based on Binet stage or immunoglobulin heavy chain variable gene (IGHV) status. In cases in Binet A or B stage, patients with 13q-H had a significantly shorter TTT (median TTT 18 months vs. undefined, p = 0.0101). And in IGHV mutated patients, 13q-H was also associated with reduced TTT (median TTT 13q-H. 18 months vs. 13q-L undefined, p = 0.0163). In conclusion, the prognosis of CLL patients with isolated 13q deletion was heterogeneous with 13q-H identifying patients with worse outcome.
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Affiliation(s)
- Yuqing Miao
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China.,Department of Hematology, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Yi Miao
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Ke Shi
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Qian Sun
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Si-Shu Zhao
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Yi Xia
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Shu-Chao Qin
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Hai-Rong Qiu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Hui Yang
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Hao Xu
- Department of Hematology, The First People's Hospital of Yancheng, Yancheng, Jiangsu Province, China
| | - Hua-Yuan Zhu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Jia-Zhu Wu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Wei Wu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Lei Cao
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Li Wang
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Lei Fan
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China.,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China.,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China
| | - Wei Xu
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China. .,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China. .,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China.
| | - Jian-Yong Li
- Department of Hematology, The First Affiliated Hospital of Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China. .,Key Laboratory of Hematology of Nanjing Medical University, Nanjing, 210029, China. .,Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing, 210029, China.
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5
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Abur Ü, Oğur G, Akar ÖS, Altundağ E, Aymelek HS, Özatlı D, Turgut M. Impact of Fluorescent In Situ Hybridization Aberrations and CLLU1 Expression on the Prognosis of Chronic Lymphocytic Leukemia: Presentation of 156 Patients from Turkey. Turk J Haematol 2018; 35:61-65. [PMID: 29129824 PMCID: PMC5843776 DOI: 10.4274/tjh.2017.0112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE This study evaluates the impact of CLLU1 expression and fluorescent in situ hybridization (FISH) analysis of a group of Turkish chronic lymphocytic leukemia (CLL) patients. MATERIALS AND METHODS A total of 156 CLL patients were analyzed by FISH method; 47 of them were also evaluated for CLLU1 expression. Results were correlated with clinical parameters. RESULTS FISH aberrations were found in 62% of patients. These aberrations were del13q14 (67%), trisomy 12 (27%), del11q22 (19%), del17p (8%), and 14q32 rearrangements (20%). Overall del11q22 and del17p were associated with the highest mortality rates, shortest overall survival (OS), and highest need for medication. Homozygous del13q14, 14q32 rearrangements, and higher CLLU1 expression correlated with shorter OS. CONCLUSION Cytogenetics/FISH analysis is still indicated for routine evaluation of CLL. Special consideration is needed for the poor prognostic implications of del11q22, del17p, 14q32 rearrangements, and homozygous del13q14. The impact of CLLU1 expression is not yet clear and it requires more data before becoming routine in genetic testing in CLL patients.
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Affiliation(s)
- Ümmet Abur
- Ondokuz Mayıs University Faculty of Medicine, Department of Medical Genetics, Samsun, Turkey
| | - Gönül Oğur
- Ondokuz Mayıs University Faculty of Medicine, Department of Medical Genetics, Samsun, Turkey
| | - Ömer Salih Akar
- Ondokuz Mayıs University Faculty of Medicine, Department of Medical Genetics, Samsun, Turkey
| | - Engin Altundağ
- Ondokuz Mayıs University Faculty of Medicine, Department of Medical Genetics, Samsun, Turkey
| | - Huri Sema Aymelek
- Ondokuz Mayıs University Faculty of Medicine, Department of Medical Genetics, Samsun, Turkey
| | - Düzgün Özatlı
- Ondokuz Mayıs University Faculty of Medicine, Department of Hematology, Samsun, Turkey
| | - Mehmet Turgut
- Ondokuz Mayıs University Faculty of Medicine, Department of Hematology, Samsun, Turkey
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6
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Hernández-Sánchez M, Rodríguez-Vicente AE, Hernández JÁ, Lumbreras E, Sarasquete ME, Martín AÁ, Benito R, Vicente-Gutiérrez C, Robledo C, Heras NDL, Rodríguez JN, Alcoceba M, Coca AGD, Aguilar C, González M, Hernández-Rivas JM. MiRNA expression profile of chronic lymphocytic leukemia patients with 13q deletion. Leuk Res 2016; 46:30-6. [DOI: 10.1016/j.leukres.2016.04.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 03/29/2016] [Accepted: 04/08/2016] [Indexed: 01/02/2023]
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7
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Grygalewicz B, Woroniecka R, Rygier J, Borkowska K, Rzepecka I, Łukasik M, Budziłowska A, Rymkiewicz G, Błachnio K, Nowakowska B, Bartnik M, Gos M, Pieńkowska-Grela B. Monoallelic and biallelic deletions of 13q14 in a group of CLL/SLL patients investigated by CGH Haematological Cancer and SNP array (8x60K). Mol Cytogenet 2016; 9:1. [PMID: 26740820 PMCID: PMC4702365 DOI: 10.1186/s13039-015-0212-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 12/30/2015] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Deletion of 13q14 is the most common cytogenetic change in chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) and is detected in about 50 % of patients by fluorescence in situ hybridization (FISH), which can reveal presence of del(13)(q14) and mono- or biallelic deletion status without information about the size of the lost region. Array-comparative genomic hybridization (aCGH) and single nucleotide polymorphism (SNP) can detect submicroscopic copy number changes, loss of heterozygosity (LOH) and uniparental disomy (UPD) regions. The purpose of this study was detection of the size of del(13)(q14) deletion in our group of patients, comparing the size of the monoallelic and biallelic deletions, detection of LOH and UPD regions. RESULTS We have investigated 40 CLL/SLL patients by karyotype, FISH and CGH and SNP array. Mutational status was of immunoglobulin heavy-chain variable-region (IGVH) was also examined. The size of deletion ranged from 348,12 Kb to 38.97 Mb. Detected minimal deleted region comprised genes: TRIM13, miR-3613, KCNRG, DLEU2, miR-16-1, miR-15a, DLEU1. The RB1 deletions were detected in 41 % of cases. The average size in monoallelic 13q14 deletion group was 7,2 Mb while in biallelic group was 4,8 Mb. In two cases 13q14 deletions were located in the bigger UPD regions. CONCLUSIONS Our results indicate that bigger deletion including RB1 or presence of biallelic 13q14 deletion is not sufficient to be considered as adverse prognostic factor in CLL/SLL. CytoSure Haematological Cancer and SNP array (8x60k) can precisely detect recurrent copy number changes with known prognostic significance in CLL/SLL as well as other chromosomal imbalances. The big advantage of this array is simultaneous detection of LOH and UPD regions during the same test.
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Affiliation(s)
- Beata Grygalewicz
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
- />Department of Pathology and Laboratory Diagnostics, Maria Skłodowska-Curie Memorial Cancer Center and Institute of Oncology, 15B Wawelska Str, 02-034, Warsaw, Poland
| | - Renata Woroniecka
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Jolanta Rygier
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Klaudia Borkowska
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Iwona Rzepecka
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Martyna Łukasik
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Agnieszka Budziłowska
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Grzegorz Rymkiewicz
- />Flow Cytometry Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Katarzyna Błachnio
- />Flow Cytometry Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
| | - Beata Nowakowska
- />Department of Medical Genetics, Mother and Child Institute, Warsaw, Poland
| | - Magdalena Bartnik
- />Department of Medical Genetics, Mother and Child Institute, Warsaw, Poland
| | - Monika Gos
- />Department of Medical Genetics, Mother and Child Institute, Warsaw, Poland
| | - Barbara Pieńkowska-Grela
- />Cancer Genetic Laboratory, Pathology and Laboratory Diagnostics Department, Centre of Oncology, M. Skłodowska-Curie Memorial Institute, Warsaw, Poland
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8
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Hernández JÁ, Hernández-Sánchez M, Rodríguez-Vicente AE, Grossmann V, Collado R, Heras C, Puiggros A, Martín AÁ, Puig N, Benito R, Robledo C, Delgado J, González T, Queizán JA, Galende J, de la Fuente I, Martín-Núñez G, Alonso JM, Abrisqueta P, Luño E, Marugán I, González-Gascón I, Bosch F, Kohlmann A, González M, Espinet B, Hernández-Rivas JM. A Low Frequency of Losses in 11q Chromosome Is Associated with Better Outcome and Lower Rate of Genomic Mutations in Patients with Chronic Lymphocytic Leukemia. PLoS One 2015; 10:e0143073. [PMID: 26630574 PMCID: PMC4667902 DOI: 10.1371/journal.pone.0143073] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 10/30/2015] [Indexed: 12/11/2022] Open
Abstract
To analyze the impact of the 11q deleted (11q-) cells in CLL patients on the time to first therapy (TFT) and overall survival (OS), 2,493 patients with CLL were studied. 242 patients (9.7%) had 11q-. Fluorescence in situ hybridization (FISH) studies showed a threshold of 40% of deleted cells to be optimal for showing that clinical differences in terms of TFT and OS within 11q- CLLs. In patients with ≥40% of losses in 11q (11q-H) (74%), the median TFT was 19 months compared with 44 months in CLL patients with <40% del(11q) (11q-L) (P<0.0001). In the multivariate analysis, only the presence of 11q-L, mutated IGHV status, early Binet stage and absence of extended lymphadenopathy were associated with longer TFT. Patients with 11q-H had an OS of 90 months, while in the 11q-L group the OS was not reached (P = 0.008). The absence of splenomegaly (P = 0.02), low LDH (P = 0.018) or β2M (P = 0.006), and the presence of 11q-L (P = 0.003) were associated with a longer OS. In addition, to detect the presence of mutations in the ATM, TP53, NOTCH1, SF3B1, MYD88, FBXW7, XPO1 and BIRC3 genes, a select cohort of CLL patients with losses in 11q was sequenced by next-generation sequencing of amplicons. Eighty % of CLLs with 11q- showed mutations and fewer patients with low frequencies of 11q- had mutations among genes examined (50% vs 94.1%, P = 0.023). In summary, CLL patients with <40% of 11q- had a long TFT and OS that could be associated with the presence of fewer mutated genes.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Chromosome Deletion
- Chromosomes, Human, Pair 11
- Female
- Gene Expression
- High-Throughput Nucleotide Sequencing
- Humans
- Immunoglobulin Heavy Chains/genetics
- In Situ Hybridization, Fluorescence
- Karyotype
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/mortality
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Middle Aged
- Mutation
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Prognosis
- Retrospective Studies
- Survival Analysis
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Affiliation(s)
- José Ángel Hernández
- Hematology Department, Hospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain
| | - María Hernández-Sánchez
- IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca,CSIC, Hospital Universitario de Salamanca, Spain
| | - Ana Eugenia Rodríguez-Vicente
- IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca,CSIC, Hospital Universitario de Salamanca, Spain
| | | | - Rosa Collado
- Hematology Department, Hospital General, Valencia, Spain
| | - Cecilia Heras
- Hematology Department, Hospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain
| | - Anna Puiggros
- Pathology Department, Hospital del Mar, Barcelona, Spain
| | | | - Noemí Puig
- Hematology Department, Hospital Universitario, Salamanca, Spain
| | - Rocío Benito
- IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca,CSIC, Hospital Universitario de Salamanca, Spain
| | - Cristina Robledo
- IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca,CSIC, Hospital Universitario de Salamanca, Spain
| | - Julio Delgado
- Hematology Department, Hospital Clinic i Provincial, Barcelona, Spain
| | - Teresa González
- Fundación Pública Galega de Medicina Xenómica, Santiago de Compostela, Spain
| | | | - Josefina Galende
- Hematology Department, Hospital del Bierzo, Ponferrada, León, Spain
| | | | | | | | - Pau Abrisqueta
- Hematology Department, Hospital Vall d'Hebron, Barcelona, Spain
| | - Elisa Luño
- Hematology Department, Hospital Central de Asturias, Oviedo, Spain
| | - Isabel Marugán
- Hematology Department, Hospital Clínico, Valencia, Spain
| | - Isabel González-Gascón
- Hematology Department, Hospital Universitario Infanta Leonor, Universidad Complutense de Madrid, Madrid, Spain
| | - Francesc Bosch
- Hematology Department, Hospital Vall d'Hebron, Barcelona, Spain
| | - Alexander Kohlmann
- MLL Munich, Germany
- AstraZeneca, Personalized Healthcare and Biomarkers, Innovative Medicines, Macclesfield, United Kingdom
| | - Marcos González
- IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca,CSIC, Hospital Universitario de Salamanca, Spain
- Hematology Department, Hospital Universitario, Salamanca, Spain
| | - Blanca Espinet
- Pathology Department, Hospital del Mar, Barcelona, Spain
| | - Jesús María Hernández-Rivas
- IBSAL, IBMCC, Centro de Investigación del Cáncer, Universidad de Salamanca,CSIC, Hospital Universitario de Salamanca, Spain
- Hematology Department, Hospital Universitario, Salamanca, Spain
- Department of Medicine, Universidad de Salamanca, Spain
- * E-mail:
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9
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Davids MS, Vartanov A, Werner L, Neuberg D, Dal Cin P, Brown JR. Controversial fluorescencein situhybridization cytogenetic abnormalities in chronic lymphocytic leukaemia: new insights from a large cohort. Br J Haematol 2015; 170:694-703. [DOI: 10.1111/bjh.13498] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 03/24/2015] [Indexed: 01/20/2023]
Affiliation(s)
- Matthew S. Davids
- Department of Medical Oncology; Dana-Farber Cancer Institute; Harvard Medical School; Boston MA USA
| | - Alexander Vartanov
- Department of Medical Oncology; Dana-Farber Cancer Institute; Harvard Medical School; Boston MA USA
| | - Lillian Werner
- Biostatistics and Computational Biology; Dana-Farber Cancer Institute; Boston MA USA
| | - Donna Neuberg
- Biostatistics and Computational Biology; Dana-Farber Cancer Institute; Boston MA USA
| | - Paola Dal Cin
- Department of Pathology; Brigham & Women's Hospital; Boston MA USA
| | - Jennifer R. Brown
- Department of Medical Oncology; Dana-Farber Cancer Institute; Harvard Medical School; Boston MA USA
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10
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Puiggros A, Venturas M, Salido M, Blanco G, Fernandez-Rodriguez C, Collado R, Valiente A, Ruiz-Xivillé N, Carrió A, Ortuño FJ, Luño E, Calasanz MJ, Ardanaz MT, Piñán MÁ, Talavera E, González MT, Ortega M, Marugán I, Ferrer A, Gimeno E, Bellosillo B, Delgado J, Hernández JÁ, Hernández-Rivas JM, Espinet B. Interstitial 13q14 deletions detected in the karyotype and translocations with concomitant deletion at 13q14 in chronic lymphocytic leukemia: different genetic mechanisms but equivalent poorer clinical outcome. Genes Chromosomes Cancer 2014; 53:788-97. [PMID: 24915757 DOI: 10.1002/gcc.22188] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 05/22/2014] [Accepted: 05/23/2014] [Indexed: 01/21/2023] Open
Abstract
Deletion of 13q14 as the sole abnormality is a good prognostic marker in chronic lymphocytic leukemia (CLL). Nonetheless, the prognostic value of reciprocal 13q14 translocations [t(13q)] with related 13q losses has not been fully elucidated. We described clinical and biological characteristics of 25 CLL patients with t(13q), and compared with 62 patients carrying interstitial del(13q) by conventional G-banding cytogenetics (CGC) [i-del(13q)] and 295 patients with del(13q) only detected by fluorescence in situ hybridization (FISH) [F-del(13q)]. Besides from the CLL FISH panel (D13S319, CEP12, ATM, TP53), we studied RB1 deletions in all t(13q) cases and a representative group of i-del(13q) and F-del(13q). We analyzed NOTCH1, SF3B1, and MYD88 mutations in t(13q) cases by Sanger sequencing. In all, 25 distinct t(13q) were described. All these cases showed D13S319 deletion while 32% also lost RB1. The median percentage of 13q-deleted nuclei did not differ from i-del(13q) patients (73% vs. 64%), but both were significantly higher than F-del(13q) (52%, P < 0.001). Moreover, t(13q) patients showed an increased incidence of biallelic del(13q) (52% vs. 11.3% and 14.9%, P < 0.001) and higher rates of concomitant 17p deletion (37.5% vs. 8.6% and 7.2%, P < 0.001). RB1 involvement was significantly higher in the i-del(13q) group (79%, P < 0.001). Two t(13q) patients (11.8%) carried NOTCH1 mutations. Time to first treatment in t(13q) and i-del(13q) was shorter than F-del(13q) (67, 44, and 137 months, P = 0.029), and preserved significance in the multivariate analysis. In conclusion, t(13q) and del(13q) patients detected by CGC constitute a subgroup within the 13q-deleted CLL patients associated with a worse clinical outcome.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Chromosome Aberrations
- Chromosome Deletion
- Chromosomes, Human, Pair 13/genetics
- Cohort Studies
- Female
- Humans
- Karyotype
- Leukemia, Lymphocytic, Chronic, B-Cell/diagnosis
- Leukemia, Lymphocytic, Chronic, B-Cell/genetics
- Leukemia, Lymphocytic, Chronic, B-Cell/pathology
- Male
- Middle Aged
- Myeloid Differentiation Factor 88/genetics
- Phosphoproteins/genetics
- Prognosis
- RNA Splicing Factors
- Receptor, Notch1/genetics
- Retinoblastoma Protein/genetics
- Ribonucleoprotein, U2 Small Nuclear/genetics
- Translocation, Genetic
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Affiliation(s)
- Anna Puiggros
- Laboratori de Citogenètica Molecular, Laboratori de Citologia Hematològica, Servei de Patologia, Hospital del Mar, Barcelona, Spain; Grup de Recerca Translacional en Neoplàsies Hematològiques, Cancer Res Program, IMIM-Hospital del Mar, Barcelona, Spain
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11
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Genetic abnormalities in chronic lymphocytic leukemia: where we are and where we go. BIOMED RESEARCH INTERNATIONAL 2014; 2014:435983. [PMID: 24967369 PMCID: PMC4054680 DOI: 10.1155/2014/435983] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2014] [Accepted: 04/22/2014] [Indexed: 12/17/2022]
Abstract
Chromosomal abnormalities in chronic lymphocytic leukemia (CLL) are detected in up to 80% of patients. Among them, deletions of 11q, 13q, 17p, and trisomy 12 have a known prognostic value and play an important role in CLL pathogenesis and evolution, determining patients outcome and therapeutic strategies. Standard methods used to identify these genomic aberrations include both conventional G-banding cytogenetics (CGC) and fluorescence in situ hybridization (FISH). Although FISH analyses have been implemented as the gold standard, CGC allows the identification of chromosomal translocations and complex karyotypes, the latest associated with poor outcome. Genomic arrays have a higher resolution that allows the detection of cryptic abnormalities, although these have not been fully implemented in routine laboratories. In the last years, next generation sequencing (NGS) methods have identified a wide range of gene mutations (e.g., TP53, NOTCH1, SF3B1, and BIRC3) which have improved our knowledge about CLL development, allowing us to refine both the prognostic subgroups and better therapeutic strategies. Clonal evolution has also recently arisen as a key point in CLL, integrating cytogenetic alterations and mutations in a dynamic model that improve our understanding about its clinical course and relapse.
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