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Yang MY, Hsu CM, Lin PM, Yang CH, Hu ML, Chen IY, Lin SF. Altered expression of imprinted genes in patients with cytogenetically normal‑acute myeloid leukemia: Implications for leukemogenesis and survival outcomes. Mol Clin Oncol 2023; 19:94. [PMID: 37920417 PMCID: PMC10619196 DOI: 10.3892/mco.2023.2690] [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: 06/15/2023] [Accepted: 09/21/2023] [Indexed: 11/04/2023] Open
Abstract
Genomic imprinting, an epigenetic mechanism that regulates gene expression from parental chromosomes, holds substantial relevance in multiple cancers, including hematopoietic malignancies. In the present study, the expression of a panel of 16 human imprinted genes in bone marrow samples from 64 patients newly diagnosed with cytogenetically normal-acute myeloid leukemia (CN-AML) were examined alongside peripheral blood samples from 85 healthy subjects. The validated findings of the present study revealed significant upregulation of seven genes [COPI coat complex subunit gamma 2 (COPG2), H19 imprinted maternally expressed transcript (H19), insulin like growth factor 2 (IGF2), PEG3 antisense RNA 1 (PEG3-AS1), DNA primase subunit 2 (PRIM2), solute carrier family 22 member 3 SLC22A3 and Zinc finger protein 215 (ZNF215)] in patients with CN-AML (P<0.001). Notably, the expression level of H19 exhibited an inverse association with the survival duration of the patients (P=0.018), establishing it as a predictive marker for two- and five-year survival in patients with CN-AML. Kaplan-Meier analysis demonstrated that patients with lower H19 expression had superior two- and five-year survival rates compared with those with higher H19 expression. The results of the present study highlighted the association between loss of imprinting and leukemogenesis in CN-AML, underscoring the significance of H19 imprinting loss as a prognostic indicator for unfavorable two- and five-year survival in CN-AML patients.
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Affiliation(s)
- Ming-Yu Yang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan, R.O.C
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan 83301, Taiwan, R.O.C
| | - Cheng-Ming Hsu
- Department of Otolaryngology-Head and Neck Surgery, Chiayi Chang Gung Memorial Hospital, Puzi, Chiayi 61363, Taiwan, R.O.C
- Department of Medicine, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan, R.O.C
| | - Pai-Mei Lin
- School of Medicine for International Students and Department of Nursing, I-Shou University, Kaohsiung 82445, Taiwan, R.O.C
| | - Chao-Hui Yang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan, R.O.C
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan 83301, Taiwan, R.O.C
| | - Ming-Luen Hu
- Division of Hepatogastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taiwan 83302, Taiwan, R.O.C
| | - I-Ya Chen
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan, R.O.C
| | - Sheng-Fung Lin
- Division of Hematology and Oncology, Department of Internal Medicine, E-Da Hospital, Kaohsiung 82445, Taiwan, R.O.C
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Coşkunpınar E, Anak S, Ağaoğlu L, Unüvar A, Devecioğlu O, Aydoğan G, Timur C, Oner AF, Yıldırmak Y, Celkan T, Yıldız I, Sarper N, Ozbek U. Analysis of Chromosomal Aberrations and FLT3 gene Mutations in Childhood Acute Myelogenous Leukemia Patients. Turk J Haematol 2012; 29:225-35. [PMID: 24744665 PMCID: PMC3986746 DOI: 10.5505/tjh.2012.24392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Accepted: 02/21/2012] [Indexed: 11/17/2022] Open
Abstract
Objective: To identify the well-known common translocations and FLT3 mutations in childhood acute myelogenousleukemia (AML) patients in Turkey. Material and Methods: The study included 50 newly diagnosed patients in which t(15;17), t(8;21), and inv(16)chromosomal translocations were identified using real-time PCR and FLT3 gene mutations were identified via direct PCR amplification PCR-RE analysis. Results: In all, t(15;17) chromosomal aberrations were observed in 4 patients (8.0%), t(8;21) chromosomal aberrationswere observed in 12 patients (24.0%), inv(16) chromosomal aberrations were observed in 3 patients (6.0%), and FLT3-ITD mutations were observed in 2 patients (4.0%); FLT3-D835 point mutation heterozygosity was observed in only 1patient (2.0%) patient. Conclusion: Despite of the known literature, a patient with FLT3-ITD and FLT3-D835 double mutation shows a bettersurvival and this might be due to the complementation effect of the t(15;17) translocation. The reportedmutation ratein this article (4%) of FLT3 gene seems to be one of the first results for Turkish population.
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Affiliation(s)
- Ender Coşkunpınar
- İstanbul University, Institute of Experimental Medical Research, Department of Genetics, İstanbul, Turkey
| | - Sema Anak
- İstanbul University, School of Medicine, Department of Pediatric Hematology-Oncology, İstanbul, Turkey
| | - Leyla Ağaoğlu
- İstanbul University, School of Medicine, Department of Pediatric Hematology-Oncology, İstanbul, Turkey
| | - Ayşegül Unüvar
- İstanbul University, School of Medicine, Department of Pediatric Hematology-Oncology, İstanbul, Turkey
| | - Omer Devecioğlu
- İstanbul University, School of Medicine, Department of Pediatric Hematology-Oncology, İstanbul, Turkey
| | - Gönül Aydoğan
- Bakırköy Maternity and Children's Hospital, İstanbul, Turkey
| | - Cetin Timur
- Göztepe Education and Research Hospital, Department of Pediatric Hematology, İstanbul, Turkey
| | - Ahmet Faik Oner
- Yüzüncü Yıl University, School of Medicine, Department Of Pediatrics, Van, Turkey
| | - Yıldız Yıldırmak
- Şişli Etfal Education and Research Hospital, Department of Pediatric Hematology, İstanbul, Turkey
| | - Tiraje Celkan
- İstanbul University, Cerrahpaşa School of Medicine, Department of Pediatric Hematology-Oncology, İstanbul, Turkey
| | - Inci Yıldız
- İstanbul University, Cerrahpaşa School of Medicine, Department of Pediatric Hematology-Oncology, İstanbul, Turkey
| | - Nazan Sarper
- Kocaeli University, School of Medicine, Department of Children's Health and Diseases, Kocaeli, Turkey
| | - Uğur Ozbek
- İstanbul University, Institute of Experimental Medical Research, Department of Genetics, İstanbul, Turkey
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Jurisic V, Pavlovic S, Colovic N, Djordjevic V, Jankovic G, Colovic M. Acute Myeloid Leukemia Associated With Near-Tetraploid Karyotype and Mutations in the FLT3 Gene. Lab Med 2011. [DOI: 10.1309/lm6e0cqqpokxxg4e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
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Colovic N, Tosic N, Aveic S, Djuric M, Milic N, Bumbasirevic V, Colovic M, Pavlovic S. Importance of early detection and follow-up of FLT3 mutations in patients with acute myeloid leukemia. Ann Hematol 2007; 86:741-7. [PMID: 17579862 DOI: 10.1007/s00277-007-0325-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2007] [Accepted: 05/28/2007] [Indexed: 11/24/2022]
Abstract
Mutations in the fms-like tyrosine kinase 3 (FLT3) gene, such as internal tandem duplication (FLT3/ITD) in the juxtamembrane domain and point mutations in the tyrosine kinase domain, are the most common abnormalities in acute myeloid leukemia (AML). FLT3/ITD and FLT3/D835 mutations were analyzed in 113 Serbian adult AML patients using polymerase chain reaction. Twenty patients were found to be FLT3/ITD positive (17.7%). The mutations occurred most frequently in M5 and M0 subtypes of AML. They were mainly associated with the normal karyotype. All patients harboring FLT3/ITD had a higher number of white blood cells than patients without it (p = 0.027). FLT3/ITD mutations were associated with lower complete remission (CR) rate (chi (2 )= 5.706; p = 0.017) and shorter overall survival (OS; Log rank = 8.76; p = 0.0031). As for disease-free survival, the difference between FLT3/ITD-positive and FLT3/ITD-negative patients was not statistically significant (Log rank = 0.78; p = 0.3764). In multivariate analysis, the presence of FLT3/ITD mutations was the most significant prognostic factor for both OS and CR rate (p = 0.0287; relative risk = 1.73; 95% CI = 1.06-2.82). However, in the group of patients with the intermediate-risk karyotype, the mere presence of FLT3/ITD was not associated with inferior clinical outcome. FLT3/D835 point mutation was found in four patients (3.5%) only. Follow-up of the FLT3/ITD-positive patients revealed stability of this mutation during the course of the disease. However, changes in the pattern of FLT3/D835 mutations in initial and relapsed AML were observed. Our results indicate an association of FLT3/ITD with the adverse outcome in AML patients treated with standard induction chemotherapy. Because FLT3/ITD mutation is a target for specific therapeutic inhibition, its early detection could be helpful in clinical practice.
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MESH Headings
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Antineoplastic Combined Chemotherapy Protocols/administration & dosage
- Chromosome Aberrations
- Disease-Free Survival
- Female
- Follow-Up Studies
- Humans
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/mortality
- Leukemia, Myeloid, Acute/therapy
- Leukocyte Count
- Male
- Middle Aged
- Point Mutation
- Recurrence
- Risk Factors
- Stem Cell Transplantation
- Survival Rate
- Transplantation, Homologous
- Yugoslavia
- fms-Like Tyrosine Kinase 3/genetics
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Affiliation(s)
- Natasa Colovic
- Institute of Hematology, Clinical Center of Serbia, Belgrade, Serbia
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