1
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Liu M, Ren Y, Wang X, Lu X, Li M, Kim YM, Li S, Zhang L. Two rare cases of acute myeloid leukemia with t(8;16)(p11.2;p13.3) and 1q duplication: case presentation and literature review. Mol Cytogenet 2020; 13:37. [PMID: 32863883 PMCID: PMC7448493 DOI: 10.1186/s13039-020-00507-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/12/2020] [Indexed: 11/18/2022] Open
Abstract
Background Acute myeloid leukemia (AML) is a complex hematological disease characterized by genetic and clinical heterogeneity. The identification and understanding of chromosomal abnormalities are important for the diagnosis and management of AML patients. Compared with recurrent chromosomal translocations in AML, t(8;16)(p11.2;p13.3) can be found in any age group but is very rare and typically associated with poor prognosis. Methods Conventional cytogenetic studies were performed among 1,824 AML patients recorded in our oncology database over the last 20 years. Fluorescence in situ hybridization (FISH) was carried out to detect the translocation fusion. Array comparative genome hybridization (aCGH) was carried out to further characterize the duplication of chromosomes. Results We identified three AML patients with t(8;16)(p11.2;p13.3) by chromosome analysis. Two of the three patients, who harbored an additional 1q duplication, were detected by FISH and aCGH. aCGH characterized a 46.7 Mb and 49.9 Mb gain in chromosome 1 at band q32.1q44 separately in these two patients. One patient achieved complete remission (CR) but relapsed 3 months later. The other patient never experienced CR and died 2 years after diagnosis. Conclusion A 1q duplication was detected in two of three AML patients with t(8;16)(p11.2;p13.3), suggesting that 1q duplication can be a recurrent event in AML patients with t(8;16). In concert with the findings of previous studies on similar patients, our work suggests that 1q duplication may also be an unfavorable prognostic factor of the disease.
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Affiliation(s)
- Meng Liu
- Department of Hematology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110000 Liaoning People's Republic of China.,Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Yuan Ren
- Department of Hematology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110000 Liaoning People's Republic of China.,Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Xianfu Wang
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Xianglan Lu
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Ming Li
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA.,Department of Neurology, The Second Hospital of Jilin University, Jilin, People's Republic of China
| | - Young Mi Kim
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Shibo Li
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK USA
| | - Lijun Zhang
- Department of Hematology, The First Hospital of China Medical University, 155 Nanjing North Street, Shenyang, 110000 Liaoning People's Republic of China
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2
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Skarsgård LS, Andersson MK, Persson M, Larsen AC, Coupland SE, Stenman G, Heegaard S. Clinical and genomic features of adult and paediatric acute leukaemias with ophthalmic manifestations. BMJ Open Ophthalmol 2019; 4:e000362. [PMID: 31673633 PMCID: PMC6797369 DOI: 10.1136/bmjophth-2019-000362] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/27/2019] [Accepted: 09/07/2019] [Indexed: 11/23/2022] Open
Abstract
Objective To describe the clinicopathological and genomic features of nine patients with primary and secondary orbital/ocular manifestations of leukaemia. Methods All orbital/ocular leukaemic specimens from 1980 to 2009 were collected from the Danish Register of Pathology. In six cases, medical records and formalin-fixed, paraffin-embedded blocks were available. Three cases from the Department of Pathology, Royal Liverpool University Hospital, were also included. Immunophenotypes and MYB oncoprotein expression were ascertained by immunohistochemistry. Genomic imbalances were analysed with comparative genomic hybridisation arrays and oncogene rearrangements with fluorescence in situ hybridisation. Results Four patients had B-cell precursor acute lymphoblastic leukaemia (BCP-ALL) and five had acute myeloid leukaemia (AML). Two patients with BCP-ALL and one with AML had primary orbital manifestations of leukaemia. Common symptoms were proptosis, displacement of the eye, and reduced eye mobility in patients with orbital leukaemias and pain, and reduced visual acuity in patients with ocular leukaemias. All patients with primary orbital lesions were alive up to 18 years after diagnosis. All but one patient with secondary ophthalmic manifestations died of relapse/disseminated disease. ETV6 and RUNX1 were rearranged in BCP-ALL, and RUNX1 and KMT2A in AML. Genomic profiling revealed quiet genomes (0–7 aberrations/case). The MYB oncoprotein was overexpressed in the majority of cases. Conclusions Leukaemias with and without ophthalmic manifestations have similar immunophenotypes, translocations/gene fusions and copy number alterations. Awareness of the clinical spectrum of leukaemic lesions of the eye or ocular region is important to quickly establish the correct diagnosis and commence prompt treatment.
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Affiliation(s)
- Lisa Stenman Skarsgård
- Department of Surgery, Ostfold Hospital Trust, Fredrikstad, Norway.,Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Mattias K Andersson
- Sahlgrenska Cancer Center, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Marta Persson
- Sahlgrenska Cancer Center, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Ann-Cathrine Larsen
- Department of Ophthalmology, Copenhagen University Hospital, Rigshospitalet, Glostrup, Denmark
| | - Sarah E Coupland
- Department of Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK.,Liverpool Clinical Laboratories, Royal Liverpool University Hospital, Liverpool, UK
| | - Göran Stenman
- Sahlgrenska Cancer Center, Department of Pathology, University of Gothenburg, Gothenburg, Sweden
| | - Steffen Heegaard
- Department of Pathology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Department of Ophthalmology, Copenhagen University Hospital, Rigshospitalet, Glostrup, Denmark
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3
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Berry NK, Scott RJ, Rowlings P, Enjeti AK. Clinical use of SNP-microarrays for the detection of genome-wide changes in haematological malignancies. Crit Rev Oncol Hematol 2019; 142:58-67. [PMID: 31377433 DOI: 10.1016/j.critrevonc.2019.07.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/18/2019] [Accepted: 07/18/2019] [Indexed: 12/17/2022] Open
Abstract
Single nucleotide polymorphism (SNP) microarrays are commonly used for the clinical investigation of constitutional genomic disorders; however, their adoption for investigating somatic changes is being recognised. With increasing importance being placed on defining the cancer genome, a shift in technology is imperative at a clinical level. Microarray platforms have the potential to become frontline testing, replacing or complementing standard investigations such as FISH or karyotype. This 'molecular karyotype approach' exemplified by SNP-microarrays has distinct advantages in the investigation of several haematological malignancies. A growing body of literature, including guidelines, has shown support for the use of SNP-microarrays in the clinical laboratory to aid in a more accurate definition of the cancer genome. Understanding the benefits of this technology along with discussing the barriers to its implementation is necessary for the development and incorporation of SNP-microarrays in a clinical laboratory for the investigation of haematological malignancies.
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Affiliation(s)
- Nadine K Berry
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, Australia; Department of Molecular Medicine, NSW Health Pathology, Newcastle, New South Wales, Australia.
| | - Rodney J Scott
- School of Biomedical Sciences and Pharmacy, University of Newcastle, New South Wales, Australia; Department of Molecular Medicine, NSW Health Pathology, Newcastle, New South Wales, Australia
| | - Philip Rowlings
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University Newcastle, New South Wales, Australia
| | - Anoop K Enjeti
- Department of Haematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University Newcastle, New South Wales, Australia
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4
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Berry NK, Dixon-McIver A, Scott RJ, Rowlings P, Enjeti AK. Detection of complex genomic signatures associated with risk in plasma cell disorders. Cancer Genet 2017; 218-219:1-9. [PMID: 29153091 DOI: 10.1016/j.cancergen.2017.08.004] [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: 09/27/2016] [Revised: 03/30/2017] [Accepted: 08/06/2017] [Indexed: 01/10/2023]
Abstract
Plasma cell disorders (PCD) range from benign to highly malignant disease. The ability to detect risk-stratifying aberrations based on cytogenetic and molecular genetic assays plays an increasing role in therapeutic decision making. In this study, 58 patients were chosen for screening by comparative genomic hybridisation microarray (aCGH) to identify the new high-risk prognostic markers of chromothripsis and chromoanasynthesis. All patients had an unequivocal clinical diagnosis of a plasma cell disorder (plasma cell myeloma (PCM)(n = 51) or monoclonal gammopathy of undetermined significance (MGUS)(n = 7)) and an abnormal FISH result. There were a total of 17 complex genomic events identified across 9 patient samples, which were selected for further investigation by high definition single nucleotide polymorphism (HD-SNP) microarray. Each event was analysed and characterised for chromothripsis, chromoanasynthesis or a complex step-wise chromosomal event. We describe an effective method to identify the new high-risk prognostic markers of chromothripsis and chromoanasynthesis in plasma cell disorders.
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Affiliation(s)
- Nadine K Berry
- Department of Hematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia; School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, New South Wales, Australia.
| | | | - Rodney J Scott
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Newcastle, New South Wales, Australia; Department of Molecular Medicine, Pathology North Newcastle, Rankin Park, New South Wales, Australia
| | - Philip Rowlings
- Department of Hematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - Anoop K Enjeti
- Department of Hematology, Calvary Mater Hospital, Newcastle, New South Wales, Australia; School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
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5
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Colli S, Furforo L, Rojo Pisarello E, Maidana M, Martín C, Bordone J, Slavutsky I. A der(11)t(4;11)(q21;p15) in a T-ALL/LBL patient. Cancer Genet 2016; 209:166-70. [PMID: 26883452 DOI: 10.1016/j.cancergen.2016.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 12/02/2015] [Accepted: 01/06/2016] [Indexed: 10/22/2022]
Abstract
Translocation t(4;11)(q21;p15) is a rare recurrent change associated to T-cell acute leukemia. In most cases, this alteration appears as the only abnormality or as part of a simple karyotype. In this report, we present the first case of T acute lymphoblastic leukemia/lymphoma (T-ALL/LBL) with the unbalanced translocation der(11)t(4;11)(q21;p15) as part of a very complex karyotype with multiple chromosome abnormalities, most of them not previously described in the literature. FISH (fluorescence in situ hybridization) and spectral karyotype (HiSKY) analysis confirmed the presence of complex alterations. The patient, a 16-year-old male, showed poor response to treatment and short survival (11 months). A detailed review of previously reported cases with t(4;11)(q21;p15) is also provided. The description of this type of alterations may contribute to the identification of new molecular mechanism associated to neoplastic development.
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Affiliation(s)
- Sandra Colli
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina
| | - Lilian Furforo
- Centro Nacional de Genética Médica, Buenos Aires, Argentina
| | | | - Marcela Maidana
- Hospital de Alta Complejidad "Presidente Juan Domingo Perón", Formosa, Argentina
| | | | - Javier Bordone
- Hospital de Alta Complejidad "Presidente Juan Domingo Perón", Formosa, Argentina
| | - Irma Slavutsky
- Laboratorio de Genética de Neoplasias Linfoides, Instituto de Medicina Experimental, CONICET-Academia Nacional de Medicina, Buenos Aires, Argentina.
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6
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Forero-Castro M, Robledo C, Benito R, Abáigar M, África Martín A, Arefi M, Fuster JL, de las Heras N, Rodríguez JN, Quintero J, Riesco S, Hermosín L, de la Fuente I, Recio I, Ribera J, Labrador J, Alonso JM, Olivier C, Sierra M, Megido M, Corchete-Sánchez LA, Ciudad Pizarro J, García JL, Ribera JM, Hernández-Rivas JM. Genome-Wide DNA Copy Number Analysis of Acute Lymphoblastic Leukemia Identifies New Genetic Markers Associated with Clinical Outcome. PLoS One 2016; 11:e0148972. [PMID: 26872047 PMCID: PMC4752220 DOI: 10.1371/journal.pone.0148972] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 01/26/2016] [Indexed: 01/13/2023] Open
Abstract
Identifying additional genetic alterations associated with poor prognosis in acute lymphoblastic leukemia (ALL) is still a challenge. Aims: To characterize the presence of additional DNA copy number alterations (CNAs) in children and adults with ALL by whole-genome oligonucleotide array (aCGH) analysis, and to identify their associations with clinical features and outcome. Array-CGH was carried out in 265 newly diagnosed ALLs (142 children and 123 adults). The NimbleGen CGH 12x135K array (Roche) was used to analyze genetic gains and losses. CNAs were analyzed with GISTIC and aCGHweb software. Clinical and biological variables were analyzed. Three of the patients showed chromothripsis (cth6, cth14q and cth15q). CNAs were associated with age, phenotype, genetic subtype and overall survival (OS). In the whole cohort of children, the losses on 14q32.33 (p = 0.019) and 15q13.2 (p = 0.04) were related to shorter OS. In the group of children without good- or poor-risk cytogenetics, the gain on 1p36.11 was a prognostic marker independently associated with shorter OS. In adults, the gains on 19q13.2 (p = 0.001) and Xp21.1 (p = 0.029), and the loss of 17p (p = 0.014) were independent markers of poor prognosis with respect to OS. In summary, CNAs are frequent in ALL and are associated with clinical parameters and survival. Genome-wide DNA copy number analysis allows the identification of genetic markers that predict clinical outcome, suggesting that detection of these genetic lesions will be useful in the management of patients newly diagnosed with ALL.
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Affiliation(s)
- Maribel Forero-Castro
- IBSAL, IBMCC, University of Salamanca, CSIC, Cancer Research Center, Salamanca, Spain
- School of Biological Sciences (GEBIMOL), Pedagogical and Technological University of Colombia (UPTC), Tunja, Colombia
| | - Cristina Robledo
- IBSAL, IBMCC, University of Salamanca, CSIC, Cancer Research Center, Salamanca, Spain
| | - Rocío Benito
- IBSAL, IBMCC, University of Salamanca, CSIC, Cancer Research Center, Salamanca, Spain
| | - María Abáigar
- IBSAL, IBMCC, University of Salamanca, CSIC, Cancer Research Center, Salamanca, Spain
| | - Ana África Martín
- IBSAL, IBMCC, University of Salamanca, CSIC, Cancer Research Center, Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
| | - Maryam Arefi
- Department of Hematology, Clinical University Hospital of Valladolid, Valladolid, Spain
| | - José Luis Fuster
- Department of Pediatric Oncohematology, Clinical University Hospital Virgen de la Arrixaca, Murcia, Spain
| | | | - Juan N. Rodríguez
- Department of Hematology, Juan Ramón Jiménez Hospital, Huelva, Spain
| | | | - Susana Riesco
- Department of Pediatric Oncohematology, University Hospital of Salamanca, Salamanca, Spain
| | - Lourdes Hermosín
- Department of Hematology, Jerez Hospital, Jerez de la Frontera, Cádiz, Spain
| | | | - Isabel Recio
- Department of Hematology, Nuestra Señora de Sonsoles Hospital, Avila, Spain
| | - Jordi Ribera
- Department of Hematology, ICO-Hospital Germans Trias i Pujol, Josep Carreras Research Institute, Badalona, Spain
| | - Jorge Labrador
- Department of Hematology, University Hospital of Burgos, Burgos, Spain
| | - José M. Alonso
- Department of Hematology, Rio Carrión Hospital, Palencia, Spain
| | - Carmen Olivier
- Department of Hematology, General Hospital of Segovia, Segovia, Spain
| | - Magdalena Sierra
- Department of Hematology, Virgen de la Concha Hospital, Zamora, Spain
| | - Marta Megido
- Department of Hematology, Bierzo Hospital, León/Ponferrada, Spain
| | | | - Juana Ciudad Pizarro
- Cytometry Service (NUCLEUS Research Support Platform), University of Salamanca (USAL), Salamanca, Spain
| | - Juan Luis García
- Institute of Health Science Studies of Castile and León (IESCYL), Salamanca, Spain
| | - José M. Ribera
- Department of Hematology, ICO-Hospital Germans Trias i Pujol, Josep Carreras Research Institute, Badalona, Spain
| | - Jesús M. Hernández-Rivas
- IBSAL, IBMCC, University of Salamanca, CSIC, Cancer Research Center, Salamanca, Spain
- Department of Hematology, University Hospital of Salamanca, Salamanca, Spain
- * E-mail:
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7
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Array-based comparative genomic hybridization detects copy number variations with prognostic relevance in 80% of ALL with normal karyotype or failed chromosome analysis. Leukemia 2015; 30:318-24. [PMID: 26449660 DOI: 10.1038/leu.2015.276] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 09/09/2015] [Accepted: 09/30/2015] [Indexed: 11/08/2022]
Abstract
Pretreatment cytogenetics is an important parameter for risk stratification and therapy approach in acute lymphoblastic leukemia (ALL). However, in up to 30% of cases, chromosome banding analysis (CBA) fails or reveals a normal karyotype. To characterize the subset of ALL with normal karyotype or failed CBA, we performed fluorescence in situ hybridization (FISH) or PCR for BCR-ABL1 and MLL rearrangements as well as array comparative genomic hybridization (aCGH) in 186 adult patients. We further carried out FISH for MYC in cases with Burkitt leukemia phenotype. FISH or PCR revealed one of the respective rearrangements in 22% of patients. In 80% of cases, copy number variations (CNV) were identified by aCGH. In 22% of cases, all CNV were below the resolution of CBA. On the basis of results of FISH, RT-PCR and aCGH, patients were categorized into three groups. The novel subset of patients with submicroscopic CNV only showed an overall survival at 3 years of 84% compared with 64% for patients classified as adverse abnormalities and 77% for cases with other aberrations (P=0.046). Thus, ALL with non-informative CBA can be further classified by FISH and aCGH providing prognostic information, which may be useful for a more individualized therapy.
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8
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Mehrotra M, Luthra R, Ravandi F, Sargent RL, Barkoh BA, Abraham R, Mishra BM, Medeiros LJ, Patel KP. Identification of clinically important chromosomal aberrations in acute myeloid leukemia by array-based comparative genomic hybridization. Leuk Lymphoma 2015; 55:2538-48. [PMID: 24446873 DOI: 10.3109/10428194.2014.883073] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Array-based comparative genomic hybridization (aCGH) chromosomal analysis facilitates rapid detection of cytogenetic abnormalities previously undetectable by conventional cytogenetics. In this study, we analyzed 48 uniformly treated patients with acute myeloid leukemia (AML) by 44K aCGH and correlated the findings with clinical outcome. aCGH identified previously undetected aberrations, as small as 5 kb, of currently unknown significance. The 36.7 Mb minimally deleted region on chromosome 5 lies between 5q14.3 and 5q33.3 and contains 634 genes and 15 microRNAs, whereas loss of chromosome 17 spans 3194 kb and involves 342 genes and 12 microRNAs. Loss of a 155 kb region on 5q33.3 (p < 0.05) was associated with achievement of complete remission (CR). In contrast, loss of 17p11.2-q11.1 was associated with a lower CR rate and poorer overall survival (Kaplan-Meier analysis, p < 0.0096). aCGH detected loss of 17p in 12/48 patients as compared to 9/48 by conventional karyotyping. In conclusion, aCGH analysis adds to the prognostic stratification of patients with AML.
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Affiliation(s)
- Meenakshi Mehrotra
- Department of Hematopathology, The University of Texas M. D. Anderson Cancer Center , Houston, TX , USA
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9
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Dirse V, Bertasiute A, Gineikiene E, Zvirblis T, Dambrauskiene R, Gerbutavicius R, Juozaityte E, Malciute L, Paulsson K, Griskevicius L. A population-based single nucleotide polymorphism array analysis of genomic aberrations in younger adult acute lymphoblastic leukemia patients. Genes Chromosomes Cancer 2015; 54:326-33. [DOI: 10.1002/gcc.22246] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Accepted: 01/19/2015] [Indexed: 02/03/2023] Open
Affiliation(s)
- Vaidas Dirse
- Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Klinikos; Vilnius Lithuania
| | - Agne Bertasiute
- Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Klinikos; Vilnius Lithuania
| | - Egle Gineikiene
- Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Klinikos; Vilnius Lithuania
| | - Tadas Zvirblis
- Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Klinikos; Vilnius Lithuania
| | - Ruta Dambrauskiene
- Clinics of Oncology and Hematology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos; Kaunas Lithuania
| | - Rolandas Gerbutavicius
- Clinics of Oncology and Hematology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos; Kaunas Lithuania
| | - Elona Juozaityte
- Clinics of Oncology and Hematology, Hospital of Lithuanian University of Health Sciences Kauno Klinikos; Kaunas Lithuania
| | - Ligita Malciute
- Department of Oncohematology; Klaipeda Seamens Hospital; Klaipeda Lithuania
| | - Kajsa Paulsson
- Division of Clinical Genetics; Department of Laboratory Medicine; Lund University; Lund Sweden
| | - Laimonas Griskevicius
- Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Klinikos; Vilnius Lithuania
- Department of Internal; Family Medicine and Oncology; Faculty of Medicine; Vilnius University; Vilnius Lithuania
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10
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Zhang R, Lee JY, Wang X, Xu W, Hu X, Lu X, Niu Y, Tang R, Li S, Li Y. Identification of novel genomic aberrations in AML-M5 in a level of array CGH. PLoS One 2014; 9:e87637. [PMID: 24727659 PMCID: PMC3984075 DOI: 10.1371/journal.pone.0087637] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Accepted: 12/29/2013] [Indexed: 01/18/2023] Open
Abstract
To assess the possible existence of unbalanced chromosomal abnormalities and delineate the characterization of copy number alterations (CNAs) of acute myeloid leukemia-M5 (AML-M5), R-banding karyotype, oligonucelotide array CGH and FISH were performed in 24 patients with AML-M5. A total of 117 CNAs with size ranging from 0.004 to 146.263 Mb was recognized in 12 of 24 cases, involving all chromosomes other than chromosome 1, 4, X and Y. Cryptic CNAs with size less than 5 Mb accounted for 59.8% of all the CNAs. 12 recurrent chromosomal alterations were mapped. Seven out of them were described in the previous AML studies and five were new candidate AML-M5 associated CNAs, including gains of 3q26.2-qter and 13q31.3 as well as losses of 2q24.2, 8p12 and 14q32. Amplication of 3q26.2-qter was the sole large recurrent chromosomal anomaly and the pathogenic mechanism in AML-M5 was possibly different from the classical recurrent 3q21q26 abnormality in AML. As a tumor suppressor gene, FOXN3, was singled out from the small recurrent CNA of 14q32, however, it is proved that deletion of FOXN3 is a common marker of myeloid leukemia rather than a specific marker for AML-M5 subtype. Moreover, the concurrent amplication of MLL and deletion of CDKN2A were noted and it might be associated with AML-M5. The number of CNA did not show a significant association with clinico-biological parameters and CR number of the 22 patients received chemotherapy. This study provided the evidence that array CGH served as a complementary platform for routine cytogenetic analysis to identify those cryptic alterations in the patients with AML-M5. As a subtype of AML, AML-M5 carries both common recurrent CNAs and unique CNAs, which may harbor novel oncogenes or tumor suppressor genes. Clarifying the role of these genes will contribute to the understanding of leukemogenic network of AML-M5.
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Affiliation(s)
- Rui Zhang
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Ji-Yun Lee
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
- Department of Pathology, College of Medicine, Korea University, Seoul, South Korea
| | - Xianfu Wang
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Weihong Xu
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Xiaoxia Hu
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Xianglan Lu
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Yimeng Niu
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Rurong Tang
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
| | - Shibo Li
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - Yan Li
- Department of Hematology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, P.R. China
- * E-mail:
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11
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Savlı H, Uzülmez N, Ilkay Z, Yavuz D, Sünnetçi D, Hacıhanifioğlu A, Cine N. High Throughput FISH Analysis: A New, Sensitive Option For Evaluation of Hematological Malignancies. TURKISH JOURNAL OF HAEMATOLOGY : OFFICIAL JOURNAL OF TURKISH SOCIETY OF HAEMATOLOGY 2014; 30:122-8. [PMID: 24385774 PMCID: PMC3878481 DOI: 10.4274/tjh.2012.0033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2012] [Accepted: 11/22/2012] [Indexed: 01/18/2023]
Abstract
Objective: The aim of this study was to determine the efficiency of the high throughput FISH analysis (HTFA) method for detecting genetic alterations in hematological malignancies, which is a new bacterial artificial chromosome array-based approach. Materials and Methods: We performed a HTFA study of bone marrow aspiration and peripheral blood samples of 77 cases (n=19 myelodysplastic syndrome, n=17 acute lymphoblastic leukemia, n=9 chronic myeloid leukemia, n=32 acute myeloid leukemia) with hematological malignancies during the periods of initial diagnosis, treatment, and/or follow-up. Results: Both numerical and structural abnormalities were detected by HTFA. We observed aberrations in 88% of our acute lymphoblastic leukemia patients, 25% of acute myeloid leukemia patients, and 31% of myelodysplastic syndrome patients. In chronic myeloid leukemia cases, aberration was not detected by HTFA. Conclusion: Our results showed that HTFA, combined with other methods, will gradually take a place in the routine diagnosis of hematologic malignancies.
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Affiliation(s)
- Hakan Savlı
- Kocaeli University Faculty of Medicine, Department of Medical Genetics, Kocaeli, Turkey
| | - Nilüfer Uzülmez
- Kocaeli University Faculty of Medicine, Department of Medical Genetics, Kocaeli, Turkey
| | - Zeynep Ilkay
- Kocaeli University Faculty of Medicine, Department of Medical Genetics, Kocaeli, Turkey
| | - Duygu Yavuz
- Kocaeli University Faculty of Medicine, Department of Medical Genetics, Kocaeli, Turkey
| | - Deniz Sünnetçi
- Kocaeli University Faculty of Medicine, Department of Medical Genetics, Kocaeli, Turkey
| | | | - Naci Cine
- Kocaeli University Faculty of Medicine, Department of Medical Genetics, Kocaeli, Turkey
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Wertheim GBW, Hexner E, Bagg A. Molecular-based classification of acute myeloid leukemia and its role in directing rational therapy: personalized medicine for profoundly promiscuous proliferations. Mol Diagn Ther 2013. [PMID: 23184342 DOI: 10.1007/s40291-012-0009-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Acute myeloid leukemia (AML) is not a single pathologic entity but represents a heterogeneous group of malignancies. This heterogeneity is exemplified by the variable clinical outcomes that are observed in patients with AML, and it is largely the result of diverse mutations within the leukemic cells. These mutations range from relatively large genetic alterations, such as gains, losses, and translocations of chromosomes, to single nucleotide changes. Detection of many of these mutations is required for accurate diagnosis, prognosis, and treatment of patients with AML. As such, many testing modalities have been developed and are currently employed in clinical laboratories to ascertain mutational status at prognostically and therapeutically critical loci. The assays include those that specifically identify large chromosomal alterations, such as conventional metaphase analysis and fluorescence in situ hybridization, and methods that are geared more toward analysis of small mutations, such as PCR with allele-specific oligonucleotide primers. Furthermore, newer tests, including array analysis and next-generation sequencing, which can simultaneously probe numerous molecular aberrancies within tumor cells, are likely to become commonplace in AML diagnostics. Each testing method clearly has advantages and disadvantages, an understanding of which should influence the choice of test in various clinical circumstances. To aid such understanding, this review discusses both genetic mutations in AML and the clinical tests-including their pros and cons-that may be used to probe these abnormalities. Additionally, we highlight the significance of genetic testing by describing cases in which results of genetic testing significantly influence clinical management of patients with AML.
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Affiliation(s)
- Gerald B W Wertheim
- Department of Pathology and Laboratory Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
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Bousquet M, Zhuang G, Meng C, Ying W, Cheruku PS, Shie AT, Wang S, Ge G, Wong P, Wang G, Safe S, Zhou B. miR-150 blocks MLL-AF9-associated leukemia through oncogene repression. Mol Cancer Res 2013; 11:912-22. [PMID: 23604034 DOI: 10.1158/1541-7786.mcr-13-0002-t] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
UNLABELLED The microRNA miR-150, a critical regulator of hematopoiesis, is downregulated in mixed-lineage leukemia (MLL). In this study, miR-150 acts as a potent leukemic tumor suppressor by blocking the oncogenic properties of leukemic cells. By using MLL-AF9-transformed cells, we demonstrate that ectopic expression of miR-150 inhibits blast colony formation, cell growth, and increases apoptosis in vitro. More importantly, ectopic expression of miR-150 in MLL-AF9-transformed cells completely blocked the development of myeloid leukemia in transplanted mice. Furthermore, gene expression profiling revealed that miR-150 altered the expression levels of more than 30 "stem cell signature" genes and many others that are involved in critical cancer pathways. In addition to the known miR-150 target Myb, we also identified Cbl and Egr2 as bona fide targets and shRNA-mediated suppression of these genes recapitulated the pro-apoptotic effects observed in leukemic cells with miR-150 ectopic expression. In conclusion, we demonstrate that miR-150 is a potent leukemic tumor suppressor that regulates multiple oncogenes. IMPLICATIONS These data establish new, key players for the development of therapeutic strategies to treat MLL-AF9-related leukemia.
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Affiliation(s)
- Marina Bousquet
- Department of Physiology and Pharmacology, College of Veterinary Medicine, Texas A&M University, College Station, TX 77843, USA
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Walker A, Mrózek K, Kohlschmidt J, Rao KW, Pettenati MJ, Sterling LJ, Marcucci G, Carroll AJ, Bloomfield CD. New recurrent balanced translocations in acute myeloid leukemia and myelodysplastic syndromes: cancer and leukemia group B 8461. Genes Chromosomes Cancer 2013; 52:385-401. [PMID: 23225546 PMCID: PMC3874732 DOI: 10.1002/gcc.22036] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 10/31/2012] [Indexed: 12/16/2022] Open
Abstract
Acquired chromosome abnormalities in patients with acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS) are among the most valuable determinants of diagnosis and prognosis. In search of new recurrent balanced translocations, we reviewed the Cancer and Leukemia Group B (CALGB) cytogenetics database containing pretreatment and relapse karyotypes of 4,701 adults with AML and 565 with MDS who were treated on CALGB trials. We identified all cases with balanced structural rearrangements occurring as a sole abnormality or in addition to one other abnormality, excluded abnormalities known to be recurrent, and then reviewed the literature to determine whether any of what we considered unique, previously unknown abnormalities had been reported. As a result, we identified seven new recurrent balanced translocations in AML or MDS: t(7;11)(q22;p15.5), t(10;11)(q23;p15), t(2;12)(p13;p13), t(12;17)(p13;q12), t(2;3)(p21;p21), t(5;21)(q31;q22), and t(8;14)(q24.1;q32.2), and additionally, t(10;12)(p11;q15), a new translocation in AML previously reported in a case of acute lymphoblastic leukemia. Herein, we report hematologic and clinical characteristics and treatment outcomes of patients with these newly recognized recurrent translocations. We also report 52 unique balanced translocations, together with the clinical data of patients harboring them, which to our knowledge have not been previously published. We hope that once the awareness of their existence is increased, some of these translocations may become recognized as novel recurring abnormalities. Identification of additional cases with both the new recurrent and the unique balanced translocations will enable determination of their prognostic significance and help to provide insights into the mechanisms of disease pathogenesis in patients with these rare abnormalities.
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Affiliation(s)
- Alison Walker
- Division of Hematology and Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH
| | - Krzysztof Mrózek
- Division of Hematology and Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH
| | - Jessica Kohlschmidt
- Division of Hematology and Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH
- Alliance Statistics and Data Center, Mayo Clinic, Rochester, MN
| | - Kathleen W. Rao
- University of North Carolina at Chapel Hill, Chapel Hill, NC
| | - Mark J. Pettenati
- Comprehensive Cancer Center Wake Forest University, Winston-Salem, NC
| | - Lisa J. Sterling
- Division of Hematology and Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH
| | - Guido Marcucci
- Division of Hematology and Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH
| | | | - Clara D. Bloomfield
- Division of Hematology and Oncology, Department of Internal Medicine, The Ohio State University Medical Center, Columbus, OH
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15
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York H, Kornblau SM, Qutub AA. Network analysis of reverse phase protein expression data: characterizing protein signatures in acute myeloid leukemia cytogenetic categories t(8;21) and inv(16). Proteomics 2012; 12:2084-93. [PMID: 22623292 DOI: 10.1002/pmic.201100491] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Acute myeloid leukemia (AML) patients present with cancerous cells originating from bone marrow. Proteomic data on AML patient cells provides critical information on the key molecules associated with the disease. Here, we introduce a new computational approach to identify complex patterns in protein signaling from reverse phase protein array data. We analyzed the expression of 203 proteins in cells taken from AML patients. Dominant overlapping protein networks between subtypes of AML patients were characterized computationally, through a paired t-test approach looking at relative protein expression. In the first application of this method, we compared recurrent cytogenetic abnormalities inv(16) and t(8;21), both affecting core-binding factor (CBFβ), to normal CD34(+) cells and to each other. Six hundred seventy-eight sets of proteins were identified as significantly different in both inv(16) and t(8;21) compared to controls, at the Bonferroni number, α < 2.44 × 10(-6) . We strengthened our predictions by comparing results to those obtained using lasso regression analysis. Signaling networks were constructed from the protein pairs that were significantly different in the t-test and lasso regression analysis. Predicted networks were also compared to known networks from public protein-protein interaction and signaling databases. By characterizing unique "protein signatures" through this rapid computational analysis, and placing them in the context of canonical biological networks, we identify signaling pathways distinct to subcategories of AML patients.
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Affiliation(s)
- Heather York
- Department of Bioengineering, Rice University, Houston, TX, USA
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Functional characterization of the promoter region of the human EVI1 gene in acute myeloid leukemia: RUNX1 and ELK1 directly regulate its transcription. Oncogene 2012; 32:2069-78. [PMID: 22689058 DOI: 10.1038/onc.2012.222] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The EVI1 gene (3q26) codes for a transcription factor with important roles in normal hematopoiesis and leukemogenesis. High expression of EVI1 is a negative prognostic indicator of survival in acute myeloid leukemia (AML) irrespective of the presence of 3q26 rearrangements. However, the only known mechanisms that lead to EVI1 overexpression are 3q aberrations, and the MLL-ENL oncoprotein, which activates the transcription of EVI1 in hematopoietic stem cells. Our aim was to characterize the functional promoter region of EVI1, and to identify transcription factors involved in the regulation of this gene. Generation of seven truncated constructs and luciferase reporter assays allowed us to determine a 318-bp region as the minimal promoter region of EVI1. Site-directed mutagenesis and chromatin immunoprecipitation (ChIP) assays identified RUNX1 and ELK1 as putative transcription factors of EVI1. Furthermore, knockdown of RUNX1 and ELK1 led to EVI1 downregulation, and their overexpression to upregulation of EVI1. Interestingly, in a series of patient samples with AML at diagnosis, we found a significant positive correlation between EVI1 and RUNX1 at protein level. Moreover, we identified one of the roles of RUNX1 in the activation of EVI1 during megakaryocytic differentiation. EVI1 knockdown significantly inhibited the expression of megakaryocytic markers after treating K562 cells with TPA, as happens when knocking down RUNX1. In conclusion, we define the minimal promoter region of EVI1 and demonstrate that RUNX1 and ELK1, two proteins with essential functions in hematopoiesis, regulate EVI1 in AML. Furthermore, our results show that one of the mechanisms by which RUNX1 regulates the transcription of EVI1 is by acetylation of the histone H3 on its promoter region. This study opens new directions to further understand the mechanisms of EVI1 overexpressing leukemias.
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Characterization of a novel t(2;5;11) in a patient with concurrent AML and CLL: a case report and literature review. Cancer Genet 2011; 204:328-33. [PMID: 21763630 DOI: 10.1016/j.cancergen.2011.04.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 04/18/2011] [Accepted: 04/25/2011] [Indexed: 12/11/2022]
Abstract
Acute myeloid leukemia (AML) that occurs concurrent with a diagnosis of chronic lymphocytic leukemia (CLL) is rare, but the number of cases recognized has recently dramatically increased as a result of the application of flow cytometry. This raises a series of questions regarding the clinical characterization of mixed leukemia, whether this diagnosis possesses unique cytogenetic abnormalities, and the possible association between AML and CLL cell clones. The current study attempts to answer these questions by evaluating an 80-year-old man with concurrent diagnoses of AML-M0 and CLL. Routine G-banded chromosome, array based comparative genomic hybridization, and fluorescence in situ hybridization analyses were used to characterize complex chromosomal rearrangements in the patient's bone marrow. Novel complex translocations involving chromosomes 2, 5, and 11, as well as submicroscopic deletions and duplications, were revealed. This case study reports a t(2;5;11) in either AML-M0 or in CLL by using array based comparative genomic hybridization and fluorescence in situ hybridization analyses to facilitate the diagnosis. The study also delineates the clinical characteristics and cytogenetic changes that occur with concurrent AML and CLL.
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