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Chaudhary S, Chaudhary P, Ahmad F, Arora N. Acute Myeloid Leukemia and Next-Generation Sequencing Panels for Diagnosis: A Comprehensive Review. J Pediatr Hematol Oncol 2024; 46:125-137. [PMID: 38447075 PMCID: PMC10956683 DOI: 10.1097/mph.0000000000002840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 01/30/2024] [Indexed: 03/08/2024]
Abstract
Acute myeloid leukemia (AML) is a genetically heterogeneous clonal disorder characterized by the accumulation of acquired somatic genetic alterations in hematopoietic progenitor cells, which alter the normal mechanisms of self-renewal, proliferation, and differentiation. Due to significant technological advancements in sequencing technologies in the last 2 decades, classification and prognostic scoring of AML has been refined, and multiple guidelines are now available for the same. The authors have tried to summarize, latest guidelines for AML diagnosis, important markers associated, epigenetics markers, various AML fusions and their importance, etc. Review of literature suggests lack of study or comprehensive information about current NGS panels for AML diagnosis, genes and fusions covered, their technical know-how, etc. To solve this issue, the authors have tried to present detailed review about currently in use next-generation sequencing myeloid panels and their offerings.
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Ravindran M, Mozessohn L, Cheung M, Buckstein R, Teichman J. A Markov analysis of azacitidine and venetoclax vs induction chemotherapy for medically fit patients with AML. Blood Adv 2024; 8:629-639. [PMID: 38029373 PMCID: PMC10839604 DOI: 10.1182/bloodadvances.2023011219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 10/23/2023] [Accepted: 11/18/2023] [Indexed: 12/01/2023] Open
Abstract
ABSTRACT Although induction chemotherapy (IC) is the standard of care in medically fit patients with newly diagnosed acute myeloid leukemia (AML), limited retrospective data indicate that patients at adverse-risk may benefit from azacytidine and venetoclax (aza-ven). Our goal was to perform a Markov decision analysis to determine whether IC or aza-ven is the optimal induction regimen in this population. Using the TreeAge software, Markov models were created for adverse-risk and intermediate-risk cohorts. A systematic review of the literature informed the transition probabilities and utilities included in the analyses. Our primary outcome was quality-adjusted life years (QALYs) gained over 5 years after diagnosis. Overall, patients at adverse risk treated with IC gained 1.4 QALYs, compared with 2.0 QALYs in patients treated with aza-ven. Patients at adverse risk treated with IC and allogeneic stem cell transplantation (allo-SCT), IC, aza-ven and allo-SCT, or aza-ven gained 2.1, 1.5, 3.0, and 1.9 QALYs, respectively. Meanwhile, patients at intermediate risk treated with IC gained 2.0 QALY, compared with 1.7 QALY in patients treated with aza-ven. Patients at intermediate risk treated with IC and allo-SCT, IC, aza-ven and allo-SCT, and aza-ven gained 2.7, 2.3, 2.6, and 1.8 QALYs, respectively. We have demonstrated that medically fit patients with newly diagnosed adverse-risk AML may benefit from treatment with aza-ven over those treated with IC, whereas IC remains the preferred approach for patients at intermediate risk. Our work challenges the use of the European LeukemiaNet risk classification for patients treated with aza-ven and highlights the need for prospective investigation into aza-ven as induction therapy for medically fit patients.
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Affiliation(s)
| | - Lee Mozessohn
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Medical Oncology and Hematology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Matthew Cheung
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Medical Oncology and Hematology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Rena Buckstein
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Medical Oncology and Hematology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
| | - Jennifer Teichman
- Department of Medicine, University of Toronto, Toronto, ON, Canada
- Division of Medical Oncology and Hematology, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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Ali T, Usman R, Shah SA, Parvez A, Anwar S, Muneer Z, Saeed M. Aberrant HIF1- α and SIX-1 Expression is Associated with Poor Prognosis in Acute Myeloid Leukemia Patients with Isocitrate Dehydrogenase 1 Mutations. Cancer Control 2024; 31:10732748241271714. [PMID: 39110525 PMCID: PMC11307363 DOI: 10.1177/10732748241271714] [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: 03/05/2024] [Revised: 06/11/2024] [Accepted: 06/24/2024] [Indexed: 08/10/2024] Open
Abstract
BACKGROUND IDH1 mutations are common in many cancers, however, their role in promoting the Warburg effect remains elusive. This study elucidates the putative involvement of mutant-IDH1 in regulating hypoxia-inducible factor (HIF1-α) and Sine-Oculis Homeobox-1 (SIX-1) expression. METHODOLOGY Genetic screening was performed using the ARMS-PCR in acute myeloid leukemia (AML), brain, and breast cancer (BC) cohorts, while transcript expression was determined using qPCR. Further, a meta-analysis of risk factors associated with the R132 mutation was performed. RESULTS Approximately 32% of AML and ∼60% of glioma cases were mutants, while no mutation was found in the BC cohort. 'AA' and TT' were associated with higher disease risk (OR = 12.18 & 4.68) in AML and had significantly upregulated IDH1 expression. Moreover, downregulated HIF1-α and upregulated SIX-1 expression was also observed in these patients, suggesting that mutant-IDH1 may alter glucose metabolism. Perturbed IDH1 and HIF-α levels exhibited poor prognosis in univariate and multivariate analysis, while age and gender were found to be contributory factors as well. Based on the ROC model, these had a good potential to be used as prognostic markers. A significant variation in frequencies of R132 mutations in AML among different populations was observed. Cytogenesis (R2 = 12.2%), NMP1 mutation status (R2 = 18.5%), and ethnic contributions (R2 = 73.21%) were critical moderators underlying these mutations. Women had a higher risk of R132 mutation (HR = 1.3, P < 0.04). The pooled prevalence was calculated to be 0.29 (95% CI 0.26-0.33, P < 0.01), indicating that IDH1 mutations are a significant prognostic factor in AML. CONCLUSION IDH1 and HIF1-α profiles are linked to poor survival and prognosis, while high SIX-1 expression in IDH1 mutants suggests a role in leukemic transformation and therapy response in AML.
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Affiliation(s)
- Tariq Ali
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Rohma Usman
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Syed Alasar Shah
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Aamir Parvez
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Summayya Anwar
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Zahid Muneer
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
| | - Muhammad Saeed
- Cancer Genetics and Epigenetics Lab, Department of Biosciences, COMSATS University Islamabad (CUI), Islamabad, Pakistan
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Zarnegar-Lumley S, Alonzo TA, Gerbing RB, Othus M, Sun Z, Ries RE, Wang J, Leonti A, Kutny MA, Ostronoff F, Radich JP, Appelbaum FR, Pogosova-Agadjanyan EL, O’Dwyer K, Tallman MS, Litzow M, Atallah E, Cooper TM, Aplenc RA, Abdel-Wahab O, Gamis AS, Luger S, Erba H, Levine R, Kolb EA, Stirewalt DL, Meshinchi S, Tarlock K. Characteristics and prognostic impact of IDH mutations in AML: a COG, SWOG, and ECOG analysis. Blood Adv 2023; 7:5941-5953. [PMID: 37267439 PMCID: PMC10562769 DOI: 10.1182/bloodadvances.2022008282] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/12/2023] [Accepted: 05/08/2023] [Indexed: 06/04/2023] Open
Abstract
Somatic mutations in isocitrate dehydrogenase (IDH) genes occur frequently in adult acute myeloid leukemia (AML) and less commonly in pediatric AML. The objective of this study was to describe the prevalence, mutational profile, and prognostic significance of IDH mutations in AML across age. Our cohort included 3141 patients aged between <1 month and 88 years treated on Children's Cancer Group/Children's Oncology Group (n = 1872), Southwest Oncology Group (n = 359), Eastern Cooperative Oncology Group (n = 397) trials, and in Beat AML (n = 333) and The Cancer Genome Atlas (n = 180) genomic characterization cohorts. We retrospectively analyzed patients in 4 age groups (age range, n): pediatric (0-17, 1744), adolescent/young adult (18-39, 444), intermediate-age (40-59, 640), older (≥60, 309). IDH mutations (IDHmut) were identified in 9.2% of the total cohort (n = 288; IDH1 [n = 123, 42.7%]; IDH2 [n = 165, 57.3%]) and were strongly correlated with increased age: 3.4% pediatric vs 21% older, P < .001. Outcomes were similar in IDHmut and IDH-wildtype (IDHWT) AML (event-free survival [EFS]: 35.6% vs 40.0%, P = .368; overall survival [OS]: 50.3% vs 55.4%, P = .196). IDH mutations frequently occurred with NPM1 (47.2%), DNMT3A (29.3%), and FLT3-internal tandem duplication (ITD) (22.4%) mutations. Patients with IDHmut AML with NPM1 mutation (IDHmut/NPM1mut) had significantly improved survival compared with the poor outcomes experienced by patients without (IDHmut/NPM1WT) (EFS: 55.1% vs 17.0%, P < .001; OS: 66.5% vs 35.2%, P < .001). DNTM3A or FLT3-ITD mutations in otherwise favorable IDHmut/NPM1mut AML led to inferior outcomes. Age group analysis demonstrated that IDH mutations did not abrogate the favorable prognostic impact of NPM1mut in patients aged <60 years; older patients had poor outcomes regardless of NPM1 status. These trials were registered at www.clinicaltrials.gov as #NCT00070174, #NCT00372593, #NCT01371981, #NCT00049517, and #NCT00085709.
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Affiliation(s)
- Sara Zarnegar-Lumley
- Division of Hematology/Oncology, Department of Pediatrics, Vanderbilt University Medical Center, Nashville, TN
| | - Todd A. Alonzo
- Children’s Oncology Group, Monrovia, CA
- University of Southern California Keck School of Medicine, Los Angeles, CA
| | | | - Megan Othus
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Zhuoxin Sun
- Department of Biostatistics and Computational Biology, Dana-Farber Cancer Institute, Boston, MA
| | - Rhonda E. Ries
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Jim Wang
- Children’s Oncology Group, Monrovia, CA
| | - Amanda Leonti
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Matthew A. Kutny
- Division of Hematology/Oncology, Department of Pediatrics, The University of Alabama at Birmingham, Birmingham, AL
| | - Fabiana Ostronoff
- Intermountain Blood and Marrow Transplant and Acute Leukemia Program, Intermountain Healthcare, Salt Lake City, UT
| | - Jerald P. Radich
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Departments of Oncology and Hematology, University of Washington, Seattle, WA
| | - Frederick R. Appelbaum
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Departments of Oncology and Hematology, University of Washington, Seattle, WA
| | | | - Kristen O’Dwyer
- Department of Medicine, Wilmot Cancer Institute, University of Rochester, Rochester, NY
| | - Martin S. Tallman
- Department of Medicine, Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Mark Litzow
- Department of Internal Medicine and Division of Hematology, Mayo Clinic College of Medicine, Rochester, MN
| | - Ehab Atallah
- Division of Hematology/Oncology, Medical College of Wisconsin, Milwaukee, WI
| | - Todd M. Cooper
- Division of Hematology/Oncology, Seattle Children’s Hospital Cancer and Blood Disorders Center, University of Washington, Seattle, WA
| | - Richard A. Aplenc
- Division of Oncology and Center for Childhood Cancer Research, Children’s Hospital of Philadelphia, Philadelphia, PA
| | - Omar Abdel-Wahab
- Department of Medicine, Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Alan S. Gamis
- Division of Hematology/Oncology/Bone Marrow Transplantation, Children’s Mercy Hospitals and Clinics, Kansas City, MO
| | - Selina Luger
- Division of Hematology/Oncology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | - Harry Erba
- Division of Hematologic Malignancies and Cellular Therapies, Department of Medicine, Duke Cancer Institute, Durham, NC
| | - Ross Levine
- Department of Medicine, Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, NY
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - E. Anders Kolb
- Nemours Center for Cancer and Blood Disorders, Alfred I. DuPont Hospital for Children, Wilmington, DE
| | - Derek L. Stirewalt
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Departments of Oncology and Hematology, University of Washington, Seattle, WA
| | - Soheil Meshinchi
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Katherine Tarlock
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
- Division of Hematology/Oncology, Seattle Children’s Hospital Cancer and Blood Disorders Center, University of Washington, Seattle, WA
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Sande CM, Wu R, Yang G, Sussman RT, Bigdeli A, Rushton C, Chitturi A, Patel J, Szankasi P, Morrissette JJD, Lim MS, Elenitoba-Johnson KSJ. Rapid and Automated Semiconductor-Based Next-Generation Sequencing for Simultaneous Detection of Somatic DNA and RNA Aberrations in Myeloid Neoplasms. J Mol Diagn 2023; 25:87-93. [PMID: 36503148 DOI: 10.1016/j.jmoldx.2022.11.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 10/17/2022] [Accepted: 11/18/2022] [Indexed: 12/13/2022] Open
Abstract
Evaluation of suspected myeloid neoplasms involves testing for recurrent, diagnostically and therapeutically relevant genetic alterations. Current molecular testing requires multiple technologies, different domains of expertise, and unconnected workflows, resulting in variable, lengthy turnaround times that can delay treatment. To address this unmet clinical need, we evaluated the Oncomine Myeloid Assay GX panel on the Ion Torrent Genexus platform, a rapid, integrated nucleic acid to report next-generation sequencing platform for detecting clinically relevant genetic aberrations in myeloid disorders. Specimens included synthetic DNA (101 targets) and RNA (9 targets) controls and real-world nucleic acid material derived from bone marrow or peripheral blood samples (40 patients). Ion Torrent Genexus results and performance indices were compared with those obtained from clinically validated genomic testing workflows in 2 separate clinical laboratories. The Ion Torrent Genexus identified 100% of DNA and RNA control variants. For primary patient specimens, the Ion Torrent Genexus reported 82 of 107 DNA variants and 19 of 19 RNA gene fusions identified on clinically validated assays, yielding an 80% overall detection rate. Reanalysis of exported, unfiltered Ion Torrent Genexus data revealed 15 DNA variants not called by the filtered on-board bioinformatics pipeline, yielding a 92% potential detection rate. These results hold promise for the implementation of an integrated next-generation sequencing system to rapidly detect genetic aberrations, facilitating accurate, genomics-based diagnoses and accelerated time to precision therapies in myeloid neoplasms.
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Affiliation(s)
- Christopher M Sande
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Rui Wu
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Guang Yang
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Robyn T Sussman
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Ashkan Bigdeli
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Chase Rushton
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Akshay Chitturi
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Jay Patel
- ARUP Laboratories, Salt Lake City, Utah
| | | | - Jennifer J D Morrissette
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Megan S Lim
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Kojo S J Elenitoba-Johnson
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania.
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Al-Bulushi F, Al-Riyami R, Al-Housni Z, Al-Abri B, Al-Khabori M. Impact of mutations in epigenetic modifiers in acute myeloid leukemia: A systematic review and meta-analysis. Front Oncol 2022; 12:967657. [PMID: 36518313 PMCID: PMC9742486 DOI: 10.3389/fonc.2022.967657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 10/11/2022] [Indexed: 08/30/2023] Open
Abstract
This is a systematic review and meta-analysis evaluating the prognostic significance of epigenetic mutations on the overall survival (OS) in Acute Myeloid Leukemia (AML). We searched for studies evaluating epigenetic mutations in AML (up to November 2018) in PubMed, Trip database and Cochrane library. Hazard ratio (HR) of outcomes were extracted, and random-effects model was used to pool the results. A total of 10,002 citations were retrieved from the search strategy; 42 articles were identified for the meta-analysis (ASXL1 = 7, TET2 = 8, DNMT3A = 12, IDH =15), with fair to good-quality studies. The pooled HR was 1.88 (95% CI: 1.49-2.36) for ASXL1 mutation, 1.39 (95% CI: 1.18-1.63) for TET2 mutation, 1.35 (95% CI 1.16-1.56) for DNMT3a and 1.54 (95% CI: 1.15-2.06) for IDH mutation. However, there was a substantial heterogeneity in the DNMT3a and IDH studies. In conclusion epigenetic mutations in ASXL1, TET2, DNMT3a and IDH adversely impact OS in patients with AML albeit with considerable heterogeneity and possibly publication bias. Further studies are required to address these limitations.
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Affiliation(s)
- Fatma Al-Bulushi
- Hematopathology, Oman Medical Specialty Board, Muscat, Oman
- Hematology Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Rahma Al-Riyami
- Internal Medicine, Oman Medical Specialty Board, Muscat, Oman
| | - Zainab Al-Housni
- Hematology Department, Sultan Qaboos University Hospital, Muscat, Oman
| | - Bushra Al-Abri
- Hematopathology, Oman Medical Specialty Board, Muscat, Oman
| | - Murtadha Al-Khabori
- Hematology Department, Sultan Qaboos University Hospital, Muscat, Oman
- College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman
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7
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Kunadt D, Stasik S, Metzeler KH, Röllig C, Schliemann C, Greif PA, Spiekermann K, Rothenberg-Thurley M, Krug U, Braess J, Krämer A, Hochhaus A, Scholl S, Hilgendorf I, Brümmendorf TH, Jost E, Steffen B, Bug G, Einsele H, Görlich D, Sauerland C, Schäfer-Eckart K, Krause SW, Hänel M, Hanoun M, Kaufmann M, Wörmann B, Kramer M, Sockel K, Egger-Heidrich K, Herold T, Ehninger G, Burchert A, Platzbecker U, Berdel WE, Müller-Tidow C, Hiddemann W, Serve H, Stelljes M, Baldus CD, Neubauer A, Schetelig J, Thiede C, Bornhäuser M, Middeke JM, Stölzel F. Impact of IDH1 and IDH2 mutational subgroups in AML patients after allogeneic stem cell transplantation. J Hematol Oncol 2022; 15:126. [PMID: 36064577 PMCID: PMC9442956 DOI: 10.1186/s13045-022-01339-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Abstract
Background The role of allogeneic hematopoietic cell transplantation (alloHCT) in acute myeloid leukemia (AML) with mutated IDH1/2 has not been defined. Therefore, we analyzed a large cohort of 3234 AML patients in first complete remission (CR1) undergoing alloHCT or conventional chemo-consolidation and investigated outcome in respect to IDH1/2 mutational subgroups (IDH1 R132C, R132H and IDH2 R140Q, R172K). Methods Genomic DNA was extracted from bone marrow or peripheral blood samples at diagnosis and analyzed for IDH mutations with denaturing high-performance liquid chromatography, Sanger sequencing and targeted myeloid panel next-generation sequencing, respectively. Statistical as-treated analyses were performed using R and standard statistical methods (Kruskal–Wallis test for continuous variables, Chi-square test for categorical variables, Cox regression for univariate and multivariable models), incorporating alloHCT as a time-dependent covariate. Results Among 3234 patients achieving CR1, 7.8% harbored IDH1 mutations (36% R132C and 47% R132H) and 10.9% carried IDH2 mutations (77% R140Q and 19% R172K). 852 patients underwent alloHCT in CR1. Within the alloHCT group, 6.2% had an IDH1 mutation (43.4% R132C and 41.4% R132H) and 10% were characterized by an IDH2 mutation (71.8% R140Q and 24.7% R172K). Variants IDH1 R132C and IDH2 R172K showed a significant benefit from alloHCT for OS (p = .017 and p = .049) and RFS (HR = 0.42, p = .048 and p = .009) compared with chemotherapy only. AlloHCT in IDH2 R140Q mutated AML resulted in longer RFS (HR = 0.4, p = .002). Conclusion In this large as-treated analysis, we showed that alloHCT is able to overcome the negative prognostic impact of certain IDH mutational subclasses in first-line consolidation treatment and could pending prognostic validation, provide prognostic value for AML risk stratification and therapeutic decision making. Supplementary Information The online version contains supplementary material available at 10.1186/s13045-022-01339-8.
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Affiliation(s)
- Desiree Kunadt
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany.
| | - Sebastian Stasik
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Klaus H Metzeler
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Klinik und Poliklinik für Hämatologie, Zelltherapie und Hämostaseologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Christoph Röllig
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | | | - Philipp A Greif
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Karsten Spiekermann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Maja Rothenberg-Thurley
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Utz Krug
- Medizinische Klinik III, Klinikum Leverkusen, Leverkusen, Germany
| | - Jan Braess
- Krankenhaus Barmherzige Brüder Regensburg, Regensburg, Germany
| | - Alwin Krämer
- Medizinische Klinik Und Poliklinik, Abteilung Innere Medizin V, Universität Heidelberg, Heidelberg, Germany
| | - Andreas Hochhaus
- Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | - Sebastian Scholl
- Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | - Inken Hilgendorf
- Klinik für Innere Medizin II, Universitätsklinikum Jena, Jena, Germany
| | | | - Edgar Jost
- Medizinische Klinik IV, Uniklinik RWTH Aachen, Aachen, Germany
| | - Björn Steffen
- Medizinische Klinik 2, Hämatologie/Onkologie, Goethe-Universität, Frankfurt am Main, Germany
| | - Gesine Bug
- Medizinische Klinik 2, Hämatologie/Onkologie, Goethe-Universität, Frankfurt am Main, Germany
| | - Hermann Einsele
- Medizinische Klinik und Poliklinik II, Universitätsklinikum Würzburg, Würzburg, Germany
| | - Dennis Görlich
- Institut für Biometrie und Klinische Forschung, Universität Münster, Münster, Germany
| | - Cristina Sauerland
- Institut für Biometrie und Klinische Forschung, Universität Münster, Münster, Germany
| | - Kerstin Schäfer-Eckart
- Klinik für Innere Medizin 5, Klinikum Nürnberg, Paracelsus Medizinische Privatuniversität, Nuremberg, Germany
| | - Stefan W Krause
- Medizinische Klinik 5, Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mathias Hänel
- Medizinische Klinik III, Klinikum Chemnitz, Chemnitz, Germany
| | - Maher Hanoun
- Klinik für Hämatologie, Universitätsklinikum Essen, Essen, Germany
| | - Martin Kaufmann
- Abteilung für Hämatologie, Onkologie und Palliativmedizin, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | - Bernhard Wörmann
- Abteilung für Hämatologie, Onkologie und Palliativmedizin, Robert-Bosch-Krankenhaus, Stuttgart, Germany
| | - Michael Kramer
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Katja Sockel
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | | | - Tobias Herold
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Gerhard Ehninger
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Andreas Burchert
- Klinik für Innere Medizin, Schwerpunkt Hämatologie, Onkologie und Immunologie, Philipps Universität Marburg, Marburg, Germany
| | - Uwe Platzbecker
- Klinik und Poliklinik für Hämatologie, Zelltherapie und Hämostaseologie, Universitätsklinikum Leipzig, Leipzig, Germany
| | - Wolfgang E Berdel
- Medizinische Klinik A, Universitätsklinikum Münster, Münster, Germany
| | - Carsten Müller-Tidow
- Medizinische Klinik Und Poliklinik, Abteilung Innere Medizin V, Universität Heidelberg, Heidelberg, Germany
| | - Wolfgang Hiddemann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Hubert Serve
- Medizinische Klinik 2, Hämatologie/Onkologie, Goethe-Universität, Frankfurt am Main, Germany
| | - Matthias Stelljes
- Medizinische Klinik A, Universitätsklinikum Münster, Münster, Germany
| | - Claudia D Baldus
- Klinik für Innere Medizin II, Universitätsklinikum Schleswig-Holstein, Kiel, Germany
| | - Andreas Neubauer
- Klinik für Innere Medizin, Schwerpunkt Hämatologie, Onkologie und Immunologie, Philipps Universität Marburg, Marburg, Germany
| | - Johannes Schetelig
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany.,DKMS Clinical Trials Unit, Dresden, Germany
| | - Christian Thiede
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Martin Bornhäuser
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany.,National Center for Tumor Diseases, Dresden (NCT/UCC), Dresden, Germany.,German Consortium for Translational Cancer Research (DKTK), DKFZ, Heidelberg, Germany
| | - Jan M Middeke
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
| | - Friedrich Stölzel
- Medizinische Klinik und Poliklinik I, Universitätsklinikum Carl Gustav Carus, Dresden, Germany
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8
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Differential impact of IDH1/2 mutational subclasses on outcome in adult AML: Results from a large multicenter study. Blood Adv 2021; 6:1394-1405. [PMID: 34794176 PMCID: PMC8905706 DOI: 10.1182/bloodadvances.2021004934] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 10/14/2021] [Indexed: 11/20/2022] Open
Abstract
Patients with IDH1-R132C have a lower complete remission rate and a trend toward reduced OS. Patients with IDH2-R172K in the European LeukemiaNet intermediate/adverse-risk group have significantly better relapse-free survival and OS.
Mutations of the isocitrate dehydrogenase-1 (IDH1) and IDH2 genes are among the most frequent alterations in acute myeloid leukemia (AML) and can be found in ∼20% of patients at diagnosis. Among 4930 patients (median age, 56 years; interquartile range, 45-66) with newly diagnosed, intensively treated AML, we identified IDH1 mutations in 423 (8.6%) and IDH2 mutations in 575 (11.7%). Overall, there were no differences in response rates or survival for patients with mutations in IDH1 or IDH2 compared with patients without mutated IDH1/2. However, distinct clinical and comutational phenotypes of the most common subtypes of IDH1/2 mutations could be associated with differences in outcome. IDH1-R132C was associated with increased age, lower white blood cell (WBC) count, less frequent comutation of NPM1 and FLT3 internal tandem mutation (ITD) as well as with lower rate of complete remission and a trend toward reduced overall survival (OS) compared with other IDH1 mutation variants and wild-type (WT) IDH1/2. In our analysis, IDH2-R172K was associated with significantly lower WBC count, more karyotype abnormalities, and less frequent comutations of NPM1 and/or FLT3-ITD. Among patients within the European LeukemiaNet 2017 intermediate- and adverse-risk groups, relapse-free survival and OS were significantly better for those with IDH2-R172K compared with WT IDH, providing evidence that AML with IDH2-R172K could be a distinct entity with a specific comutation pattern and favorable outcome. In summary, the presented data from a large cohort of patients with IDH1/2 mutated AML indicate novel and clinically relevant findings for the most common IDH mutation subtypes.
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9
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Dragani M, de Botton S. SOHO State of the Art Updates and Next Questions: IDH Inhibition. CLINICAL LYMPHOMA, MYELOMA & LEUKEMIA 2021; 21:567-572. [PMID: 34193376 DOI: 10.1016/j.clml.2021.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/23/2021] [Accepted: 05/03/2021] [Indexed: 06/13/2023]
Abstract
There has been extraordinary progress in the field of targeted therapy for myeloid malignancies in the last few years, especially due to the approval of various agents that can be used as monotherapy or in combination as first-line treatment or when facing a refractory or relapsed disease. Many successful trials have been conducted recently, and a consistent body of work about the efficacy of novel molecules is now available. In this review, we sought to explain how enasidenib and ivosidenib have changed the face of myeloid neoplasm treatment through isocitrate dehydrogenase inhibition and to summarize the trials results that have led to the current commercial indications for the two molecules.
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Affiliation(s)
- Matteo Dragani
- Hematology Department, Gustave Roussy Cancer Centre, Villejuif, France
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10
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Lu J, Chen M, Hua H, Qin W, Zhang R, Lu X, Chao H. Additional mutations in IDH1/2-mutated patients with acute myeloid leukemia. Int J Lab Hematol 2021; 43:1483-1490. [PMID: 34270876 DOI: 10.1111/ijlh.13648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/03/2021] [Accepted: 06/09/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE Somatic mutations in isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) frequently emerge in acute myeloid leukemia (AML), but the clinical features and molecular characteristics of IDH mutational status and other coexisting mutations have not been investigated in a large extensively characterized AML series. The aim of this study was to gain insight into the mutational profile of IDH-mutated patients, such as the frequency and clinical characteristics of coexisting mutated genes. MATERIALS AND METHODS We investigated 485 newly diagnosed AML patients (range 18-81 years). DNA was extracted from bone marrow samples at the time of diagnosis. All samples were investigated with a panel of 49 mutational genes using next-generation sequencing (NGS). FLT3-ITD, NPM1, and CEBPA mutations were detected by Sanger PCR sequencing. RESULTS We found 84 patients (17.3%) with IDH1 or IDH2 mutations. There were 40 IDH1R132 , 15 IDH2R140Q , 17 IDH2R172K , and 12 uncommon mutations. No patient was found to have both IDH1 and IDH2 mutations. Patients with IDH2R140Q mutations were more frequently older and presented with significantly lower average platelet counts, while IDH2R172K -mutated patients had significantly lower white blood cell (WBC) counts. On the background of IDH mutations, the presence of a normal karyotype showed a balanced distribution. The four most frequently coexisting mutated genes were NPM1, DNMT3A, TET2, and FLT3-ITD. The majority of coexisting mutated genes were involved in regulating transcription and DNA methylation. IDH mutation status had no effect on the CR rate, regardless of other molecular abnormalities. CONCLUSION Isocitrate dehydrogenases mutations are associated with a complex coexisting mutation cluster in AML. Future investigation is needed to reveal the association between IDH mutations and other genetic abnormalities, which may have an impact on the progression and prognosis of disease.
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Affiliation(s)
- Jingtao Lu
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, China
| | - Meiyu Chen
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, China
| | - Haiying Hua
- Department of Hematology, The Affiliated Hospital of Jiangnan University, Wuxi, China
| | - Wei Qin
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, China
| | - Ri Zhang
- Department of Hematology, The First Affiliated Hospital of Suzhou University, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, China
| | - Xuzhang Lu
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, China
| | - Hongying Chao
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, China
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11
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IDH1 mutation contributes to myeloid dysplasia in mice by disturbing heme biosynthesis and erythropoiesis. Blood 2021; 137:945-958. [PMID: 33254233 DOI: 10.1182/blood.2020007075] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 11/18/2020] [Indexed: 12/22/2022] Open
Abstract
Isocitrate dehydrogenase (IDH) mutations are common genetic alterations in myeloid disorders, including acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS). Epigenetic changes, including abnormal histone and DNA methylation, have been implicated in the pathogenic build-up of hematopoietic progenitors, but it is still unclear whether and how IDH mutations themselves affect hematopoiesis. Here, we show that IDH1-mutant mice develop myeloid dysplasia in that these animals exhibit anemia, ineffective erythropoiesis, and increased immature progenitors and erythroblasts. In erythroid cells of these mice, D-2-hydroxyglutarate, an aberrant metabolite produced by the mutant IDH1 enzyme, inhibits oxoglutarate dehydrogenase activity and diminishes succinyl-coenzyme A (CoA) production. This succinyl-CoA deficiency attenuates heme biosynthesis in IDH1-mutant hematopoietic cells, thus blocking erythroid differentiation at the late erythroblast stage and the erythroid commitment of hematopoietic stem cells, while the exogenous succinyl-CoA or 5-ALA rescues erythropoiesis in IDH1-mutant erythroid cells. Heme deficiency also impairs heme oxygenase-1 expression, which reduces levels of important heme catabolites such as biliverdin and bilirubin. These deficits result in accumulation of excessive reactive oxygen species that induce the cell death of IDH1-mutant erythroid cells. Our results clearly show the essential role of IDH1 in normal erythropoiesis and describe how its mutation leads to myeloid disorders. These data thus have important implications for the devising of new treatments for IDH-mutant tumors.
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12
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Kattih B, Shirvani A, Klement P, Garrido AM, Gabdoulline R, Liebich A, Brandes M, Chaturvedi A, Seeger T, Thol F, Göhring G, Schlegelberger B, Geffers R, John D, Bavendiek U, Bauersachs J, Ganser A, Heineke J, Heuser M. IDH1/2 mutations in acute myeloid leukemia patients and risk of coronary artery disease and cardiac dysfunction-a retrospective propensity score analysis. Leukemia 2020; 35:1301-1316. [PMID: 32948843 PMCID: PMC8102189 DOI: 10.1038/s41375-020-01043-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 08/12/2020] [Accepted: 09/07/2020] [Indexed: 01/02/2023]
Abstract
Clonal hematopoiesis of indeterminate potential (CHIP) is linked to leukemia gene mutations and associates with an increased risk for coronary artery disease and poor prognosis in ischemic cardiomyopathy. Two recurrently mutated genes in CHIP and adult acute myeloid leukemia (AML) encode for isocitrate dehydrogenases 1 and 2 (IDH1 and IDH2). Global expression of mutant IDH2 in transgenic mice-induced dilated cardiomyopathy and muscular dystrophy. In this retrospective observational study, we investigated whether mutant IDH1/2 predisposes to cardiovascular disease in AML patients. Among 363 AML patients, IDH1 and IDH2 mutations were detected in 26 (7.2%) and 39 patients (10.7%), respectively. Mutant IDH1 patients exhibited a significantly higher prevalence of coronary artery disease (26.1% vs. 6.4%, p = 0.002). Applying inverse probability-weighting analysis, patients with IDH1/2 mutations had a higher risk for a declining cardiac function during AML treatment compared to IDH1/2 wild type patients [left ventricular ejection fraction pretreatment compared to 10 months after diagnosis: 59.2% to 41.9% (p < 0.001) vs 58.5% to 55.4% (p = 0.27), respectively]. Mechanistically, RNA sequencing and immunostaining in hiPS-derived cardiomyocytes indicated that the oncometabolite R-2HG exacerbated doxorubicin mediated cardiotoxicity. Evaluation of IDH1/2 mutation status may therefore help identifying AML patients at risk for cardiovascular complications during cytotoxic treatment.
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Affiliation(s)
- Badder Kattih
- Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany.,Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim of Heidelberg University, Ludolf-Krehl-Strasse 7-11, 68167, Mannheim, Germany.,Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.,German Center for Cardiovascular Research (DZHK), partner site Rhein/Main, Frankfurt am Main, Germany
| | - Amir Shirvani
- Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Piroska Klement
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Abel Martin Garrido
- Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim of Heidelberg University, Ludolf-Krehl-Strasse 7-11, 68167, Mannheim, Germany
| | - Razif Gabdoulline
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Alessandro Liebich
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Maximilian Brandes
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Anuhar Chaturvedi
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Timon Seeger
- Department of Medicine III, University Hospital Heidelberg, Im Neuenheimer Feld 410, 69120, Heidelberg, Germany.,German Center for Cardiovascular Research (DZHK), partner site Heidelberg/Mannheim, Heidelberg, Germany
| | - Felicitas Thol
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Gudrun Göhring
- Department of Human Genetics, Hannover Medical School, Hannover, Germany
| | | | - Robert Geffers
- Genome Analytics, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - David John
- Institute for Cardiovascular Regeneration, Goethe University Frankfurt, Theodor-Stern-Kai 7, 60590, Frankfurt am Main, Germany.,German Center for Cardiovascular Research (DZHK), partner site Rhein/Main, Frankfurt am Main, Germany
| | - Udo Bavendiek
- Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Johann Bauersachs
- Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany
| | - Joerg Heineke
- Department of Cardiology and Angiology, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany. .,Department of Cardiovascular Physiology, European Center for Angioscience (ECAS), Medical Faculty Mannheim of Heidelberg University, Ludolf-Krehl-Strasse 7-11, 68167, Mannheim, Germany. .,German Center for Cardiovascular Research (DZHK), partner site Heidelberg/Mannheim, Heidelberg, Germany.
| | - Michael Heuser
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Carl-Neuberg Strasse 1, 30625, Hannover, Germany.
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13
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Hou HA, Tien HF. Genomic landscape in acute myeloid leukemia and its implications in risk classification and targeted therapies. J Biomed Sci 2020; 27:81. [PMID: 32690020 PMCID: PMC7372828 DOI: 10.1186/s12929-020-00674-7] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/14/2020] [Indexed: 02/08/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous hematologic malignancy in terms of clinical features, underlying pathogenesis and treatment outcomes. Recent advances in genomic techniques have unraveled the molecular complexity of AML leukemogenesis, which in turn have led to refinement of risk stratification and personalized therapeutic strategies for patients with AML. Incorporation of prognostic and druggable genetic biomarkers into clinical practice to guide patient-specific treatment is going to be the mainstay in AML therapeutics. Since 2017 there has been an explosion of novel treatment options to tailor personalized therapy for AML patients. In the past 3 years, the U.S. Food and Drug Administration approved a total of eight drugs for the treatment of AML; most specifically target certain gene mutations, biological pathways, or surface antigen. These novel agents are especially beneficial for older patients or those with comorbidities, in whom the treatment choice is limited and the clinical outcome is very poor. How to balance efficacy and toxicity to further improve patient outcome is clinically relevant. In this review article, we give an overview of the most relevant genetic markers in AML with special focus on the therapeutic implications of these aberrations.
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Affiliation(s)
- Hsin-An Hou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
| | - Hwei-Fang Tien
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan.
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14
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Wang K, Zhou F, Cai X, Chao H, Zhang R, Chen S. Mutational landscape of patients with acute myeloid leukemia or myelodysplastic syndromes in the context of RUNX1 mutation. Hematology 2020; 25:211-218. [PMID: 32476595 DOI: 10.1080/16078454.2020.1765561] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Kai Wang
- Department of Hematology, The First Affiliated Hospital of Suzhou University, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, People’s Republic of China
| | - Feng Zhou
- Department of Hematology, Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Xiaohui Cai
- Department of Hematology, Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Hongying Chao
- Department of Hematology, Affiliated Changzhou Second People’s Hospital of Nanjing Medical University, Changzhou, People’s Republic of China
| | - Ri Zhang
- Department of Hematology, The First Affiliated Hospital of Suzhou University, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, People’s Republic of China
| | - Suning Chen
- Department of Hematology, The First Affiliated Hospital of Suzhou University, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, People’s Republic of China
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15
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Prassek VV, Rothenberg-Thurley M, Sauerland MC, Herold T, Janke H, Ksienzyk B, Konstandin NP, Goerlich D, Krug U, Faldum A, Berdel WE, Wörmann B, Braess J, Schneider S, Subklewe M, Bohlander SK, Hiddemann W, Spiekermann K, Metzeler KH. Genetics of acute myeloid leukemia in the elderly: mutation spectrum and clinical impact in intensively treated patients aged 75 years or older. Haematologica 2018; 103:1853-1861. [PMID: 29903761 PMCID: PMC6278991 DOI: 10.3324/haematol.2018.191536] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Accepted: 06/11/2018] [Indexed: 11/09/2022] Open
Abstract
A cute myeloid leukemia is a disease of the elderly (median age at diagnosis, 65-70 years). The prognosis of older acute myeloid leukemia patients is generally poor. While genetic markers have become important tools for risk stratification and treatment selection in young and middle-aged patients, their applicability in very old patients is less clear. We sought to validate existing genetic risk classification systems and identify additional factors associated with outcomes in intensively treated patients aged ≥75 years. In 151 patients who received induction chemotherapy in the AMLCG-1999 trial, we investigated recurrently mutated genes using a targeted sequencing assay covering 64 genes. The median number of mutated genes per patient was four. The most commonly mutated genes were TET2 (42%), DNMT3A (35%), NPM1 (32%), SRSF2 (25%) and ASXL1 (21%). The complete remission rate was 44% and the 3-year survival was 21% for the entire cohort. While adverse-risk cytogenetics (MRC classification) were associated with shorter overall survival (P=0.001), NPM1 and FLT3-ITD mutations (present in 18%) did not have a significant impact on overall survival. Notably, none of the 13 IDH1-mutated patients (9%) reached complete remission. Consequently, the overall survival of this subgroup was significantly shorter than that of IDH1-wildtype patients (P<0.001). In summary, even among very old, intensively treated, acute myeloid leukemia patients, adverse-risk cytogenetics predict inferior survival. The spectrum and relevance of driver gene mutations in elderly patients differs from that in younger patients. Our data implicate IDH1 mutations as a novel marker for chemorefractory disease and inferior prognosis. (AMLCG-1999 trial: clinicaltrials.gov identifier, NCT00266136).
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Affiliation(s)
- Victoria V Prassek
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Maja Rothenberg-Thurley
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Maria C Sauerland
- Institute of Biostatistics and Clinical Research, University of Münster, Germany
| | - Tobias Herold
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Hanna Janke
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Bianka Ksienzyk
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Nikola P Konstandin
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Dennis Goerlich
- Institute of Biostatistics and Clinical Research, University of Münster, Germany
| | | | - Andreas Faldum
- Institute of Biostatistics and Clinical Research, University of Münster, Germany
| | - Wolfgang E Berdel
- Institute of Biostatistics and Clinical Research, University of Münster, Germany
| | | | - Jan Braess
- Department of Oncology and Hematology, Hospital Barmherzige Brüder, Regensburg, Germany
| | - Stephanie Schneider
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Marion Subklewe
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany
| | - Stefan K Bohlander
- Department of Molecular Medicine and Pathology, University of Auckland, New Zealand
| | - Wolfgang Hiddemann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Karsten Spiekermann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany.,German Cancer Consortium (DKTK), Partner Site Munich, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Klaus H Metzeler
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Germany .,German Cancer Consortium (DKTK), Partner Site Munich, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
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16
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Abstract
Isocitrate dehydrogenases (IDHs) are enzymes involved in multiple metabolic and epigenetic cellular processes. Mutations in IDH1 or IDH2 are detected in approximately 20% of patients with acute myeloid leukemia (AML) and induce amino acid changes in conserved residues resulting in neomorphic enzymatic function and production of an oncometabolite, 2-hydroxyglutarate (R-2-HG). This leads to DNA hypermethylation, aberrant gene expression, cell proliferation and abnormal differentiation. IDH mutations diversely affect prognosis of patients with AML based on the location of the mutation and other co-occurring genomic abnormalities. Recently, novel therapies specifically targeting mutant IDH have opened new avenues of therapy for these patients. In the present review, we will provide an overview of the biological, clinical and therapeutic implications of IDH mutations in AML.
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Affiliation(s)
- Guillermo Montalban-Bravo
- Department of Leukemia, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA
| | - Courtney D DiNardo
- Department of Leukemia, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030, USA
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17
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Wang J, Ma Z, Wang Q, Guo Q, Huang J, Yu W, Wang H, Huang J, Washington Shao Y, Chen S, Jin J. Prognostic utility of six mutated genes for older patients with acute myeloid leukemia. Int J Cancer 2017; 142:1664-1670. [PMID: 29193057 DOI: 10.1002/ijc.31178] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Revised: 11/02/2017] [Accepted: 11/16/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Jinghan Wang
- Department of Hematology; The First Affiliated Hospital, Zhejiang University College of Medicine; Hangzhou People's Republic of China
- Institute of Hematology, Zhejiang University; Hangzhou People's Republic of China
- Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment; Hangzhou Zhejiang People's Republic of China
| | - Zhixin Ma
- Institute of Hematology, Zhejiang University; Hangzhou People's Republic of China
| | - Qinrong Wang
- Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Collaborative Innovation Center of Hematology, Jiangsu Institute of Hematology, Soochow University, The First Affiliated Hospital of Soochow University; Suzhou People's Republic of China
| | - Qi Guo
- Department of Nephrology; The First Affiliated Hospital, Zhejiang University; Hangzhou China
| | - Jiansong Huang
- Institute of Hematology, Zhejiang University; Hangzhou People's Republic of China
- Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment; Hangzhou Zhejiang People's Republic of China
| | - Wenjuan Yu
- Department of Hematology; The First Affiliated Hospital, Zhejiang University College of Medicine; Hangzhou People's Republic of China
- Institute of Hematology, Zhejiang University; Hangzhou People's Republic of China
- Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment; Hangzhou Zhejiang People's Republic of China
| | - Huanping Wang
- Institute of Hematology, Zhejiang University; Hangzhou People's Republic of China
- Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment; Hangzhou Zhejiang People's Republic of China
| | - Jingwen Huang
- Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment; Hangzhou Zhejiang People's Republic of China
| | - Yang Washington Shao
- School of Public Health; Nanjing Medical University; Nanjing Jiangsu China
- Translational Medicine Research Institute, Geneseeq Technology, Inc; Toronto Ontario Canada M5G1L7
| | - Suning Chen
- Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Collaborative Innovation Center of Hematology, Jiangsu Institute of Hematology, Soochow University, The First Affiliated Hospital of Soochow University; Suzhou People's Republic of China
| | - Jie Jin
- Department of Hematology; The First Affiliated Hospital, Zhejiang University College of Medicine; Hangzhou People's Republic of China
- Institute of Hematology, Zhejiang University; Hangzhou People's Republic of China
- Key Laboratory of Hematologic Malignancies, Diagnosis and Treatment; Hangzhou Zhejiang People's Republic of China
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18
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McCurdy SR, Levis MJ. Emerging molecular predictive and prognostic factors in acute myeloid leukemia. Leuk Lymphoma 2017; 59:2021-2039. [DOI: 10.1080/10428194.2017.1393669] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shannon R. McCurdy
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mark J. Levis
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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19
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The evolving role of genomic testing in assessing prognosis of patients with myelodysplastic syndromes. Best Pract Res Clin Haematol 2017; 30:295-300. [PMID: 29156198 DOI: 10.1016/j.beha.2017.09.009] [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] [Indexed: 01/23/2023]
Abstract
The introduction into routine hematology-oncology clinical practice of molecular genetic testing assays based on next-generation sequencing platforms is prompting reassessment of the importance of molecular assay results in comparison to existing disease-specific risk stratification tools based on clinical assessment and light microscopy. For patients with myelodysplastic syndromes (MDS), the most commonly used tools for prognostication currently include the International Prognostic Scoring System (IPSS) and the Revised IPSS (IPSS-R), which are based on marrow blast proportion, number and degree of cytopenias, and the metaphase karyotype. Integration of DNA sequencing data into an existing evidence-based practice approach inclusive of the IPSS or IPSS-R may be challenging, but the additional information provided by molecular genetic testing clearly can influence clinical decisions, such as determining patients' eligibility for clinical trials of novel targeted agents or helping assess which patients should be referred for allogeneic hematopoietic stem cell transplantation. This review discusses the prognostic and predictive value of mutation testing in the context of current clinical care of patients with MDS.
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20
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Yang MY, Hsiao HH, Liu YC, Hsu CM, Lin SF, Lin PM. Phe354Leu Polymorphism of LKB1 Is a Potential Prognostic Factor for Cytogenetically Normal Acute Myeloid Leukemia. ACTA ACUST UNITED AC 2017; 31:841-847. [PMID: 28882949 DOI: 10.21873/invivo.11137] [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: 07/15/2017] [Revised: 07/28/2017] [Accepted: 08/02/2017] [Indexed: 11/10/2022]
Abstract
BACKGROUND/AIM Liver kinase B1 (LKB1) is a major activator of the AMP-dependent kinase/mammalian target of rapamycin pathway. The prevalence and the specificity of LKB1 gene mutation in acute myeloid leukemia (AML) have not been well established. This study aimed to examine mutation of LKB1 in AML and its clinical and pathological implications. PATIENTS AND METHODS Eighty-five patients newly diagnosed with cytogenetically normal AML were analyzed using polymerase chain reaction followed by direct sequencing. RESULTS A silent mutation (837C>T) of LKB1 was detected in one patient and a pathogenic polymorphism Phe354Leu which diminishes LKB1 ability to maintain cell polarity was detected in six (7%) patients. The Phe354Leu polymorphism occurred concurrently with mutations of nucleophosmin 1 (NPM1), fms-related tyrosine kinase 3 (FLT3) and CCAAT/enhancer binding protein alpha (CEBPA), but not with metabolism-related genes, isocitrate dehydrogenase [nicotinamide adenine dinucleotide phosphate (+)]1 (IDH1) and IDH2. Patients with Phe354Leu polymorphism diagnosed at younger ages had a worse overall survival. CONCLUSION LKB1 may be involved in the leukemogenesis and progression of cytogenetically normal AML.
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Affiliation(s)
- Ming-Yu Yang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan, R.O.C.,Departments of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung, Taiwan, R.O.C
| | - Hui-Hua Hsiao
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C.,Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, R.O.C
| | - Yi-Chang Liu
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C.,Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, R.O.C
| | - Cheng-Ming Hsu
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Tao-Yuan, Taiwan, R.O.C. .,Department of Otolaryngology, Chiayi Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Chiayi, Taiwan, R.O.C
| | - Sheng-Fung Lin
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan, R.O.C. .,Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan, R.O.C
| | - Pai-Mei Lin
- Department of Nursing, I-Shou University, Kaohsiung, Taiwan, R.O.C.
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21
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Ali MAM, Ahmed EK, Assem MMA, Helwa R. The Synonymous Isocitrate Dehydrogenase 1 315C>T SNP Confers an Adverse Prognosis in Egyptian Adult Patients with NPM1-/CEBPA-Negative Acute Myeloid Leukemia. Indian J Hematol Blood Transfus 2017; 34:240-252. [PMID: 29622865 DOI: 10.1007/s12288-017-0852-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 07/17/2017] [Indexed: 11/26/2022] Open
Abstract
Although the clinical features of isocitrate dehydrogenase (IDH) genetic aberrations have been well-characterized in acute myeloid leukemia (AML), definitive information on their prognostic significance is lacking. We aimed to explore the prognostic significance of IDH gene alterations in an Egyptian cohort of adult patients with de novo AML. Diagnostic peripheral blood samples from 51 AML patients were analyzed for the presence of mutations/SNPs in exon 4 of IDH1 and IDH2 genes using polymerase chain reaction amplification followed by direct sequencing. IDH mutational status had no impact on event-free survival (EFS) and overall survival (OS), whereas the presence of IDH1 315C>T SNP was significantly associated with inferior EFS (P = 0.037) and OS (P = 0.034) as compared with wild-type IDH1. IDH1 315C>T SNP but not IDH mutations is associated with unfavorable outcomes, suggesting that AML patients with IDH1 315C>T SNP can represent a new subgroup of patients which allows refined risk stratification.
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Affiliation(s)
- Mohamed A M Ali
- 1Department of Biochemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566 Egypt
| | - Emad K Ahmed
- 1Department of Biochemistry, Faculty of Science, Ain Shams University, Abbassia, Cairo, 11566 Egypt
| | - Magda M A Assem
- 2Clinical Pathology Department, National Cancer Institute, Cairo University, Cairo, Egypt
| | - Reham Helwa
- 3Zoology Department, Faculty of Science, Ain Shams University, Cairo, Egypt
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22
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Lagunas-Rangel FA, Chávez-Valencia V. FLT3–ITD and its current role in acute myeloid leukaemia. Med Oncol 2017; 34:114. [DOI: 10.1007/s12032-017-0970-x] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Accepted: 04/25/2017] [Indexed: 01/20/2023]
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23
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Xu Q, Li Y, Lv N, Jing Y, Xu Y, Li Y, Li W, Yao Z, Chen X, Huang S, Wang L, Li Y, Yu L. Correlation Between Isocitrate Dehydrogenase Gene Aberrations and Prognosis of Patients with Acute Myeloid Leukemia: A Systematic Review and Meta-Analysis. Clin Cancer Res 2017; 23:4511-4522. [PMID: 28246275 DOI: 10.1158/1078-0432.ccr-16-2628] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 11/23/2016] [Accepted: 02/22/2017] [Indexed: 11/16/2022]
Abstract
Purpose: Whether isocitrate dehydrogenase (IDH) gene aberrations affected prognosis of patients with acute myeloid leukemia (AML) was controversial. Here, we conducted a meta-analysis to evaluate their prognostic value.Experimental Design: PubMed, Embase, Cochrane, and Chinese databases were searched to identify studies exploring how IDH gene aberrations affected AML outcome. Pooled HRs and relative risks (RR) were calculated, along with 95% confidence intervals (CI).Results: Thirty-three reports were included. IDH mutations seemed not to affect overall survival (OS: HR, 1.05; 95% CI, 0.89-1.23) and event-free survival (EFS: HR, 0.97; 95% CI, 0.80-1.18) when considered as a single factor, but improved accumulative incidence of relapse (CIR: HR, 1.44; 95% CI, 1.18-1.76) in patients with intermediate-risk karyotypes (IR-AML). However, IDH1 mutation conferred worse OS (HR, 1.17; 95% CI, 1.05-1.31) and EFS (HR, 1.29; 95% CI, 1.07-1.56), especially in patients with normal cytogenetics (OS: HR, 1.21; 95% CI, 1.01-1.46; EFS: HR, 1.56; 95% CI, 1.23-1.98). Prognosis of the IDH1 single-nucleotide polymorphism rs11554137 was also poor (OS: HR, 1.34; 95% CI, 1.03-1.75). IDH2 mutation improved OS (HR, 0.78; 95% CI, 0.66-0.93), particularly in IR-AML patients (OS: HR, 0.65; 95% CI, 0.49-0.86). The IDH2 (R140) mutation was associated with better OS among younger cases (HR, 0.64; 95% CI, 0.49-0.82). Treatment outcome was poor [RR for complete remission rates in IDH1 mutation: 1.21; 95% CI, 1.02-1.44; IDH2 (R172) mutation: 2.14; 95% CI, 1.61-2.85].Conclusions: Various subtypes of IDH mutations might contribute to different prognosis and be allowed to stratify IR-AML further. Clin Cancer Res; 23(15); 4511-22. ©2017 AACR.
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Affiliation(s)
- Qingyu Xu
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China.,Medical School of Nankai University, Tianjin, China
| | - Yan Li
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Na Lv
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Yu Jing
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Yihan Xu
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Yuyan Li
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Wenjun Li
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Zilong Yao
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Xiaosu Chen
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China.,Medical School of Nankai University, Tianjin, China
| | - Sai Huang
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Lili Wang
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Yonghui Li
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China
| | - Li Yu
- Department of Hematology and BMT Center, Chinese PLA General Hospital, Beijing, China.
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24
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Molecular Mutations and Their Cooccurrences in Cytogenetically Normal Acute Myeloid Leukemia. Stem Cells Int 2017; 2017:6962379. [PMID: 28197208 PMCID: PMC5288537 DOI: 10.1155/2017/6962379] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 12/25/2016] [Indexed: 01/08/2023] Open
Abstract
Adult acute myeloid leukemia (AML) clinically is a disparate disease that requires intensive treatments ranging from chemotherapy alone to allogeneic hematopoietic cell transplantation (allo-HCT). Historically, cytogenetic analysis has been a useful prognostic tool to classify patients into favorable, intermediate, and unfavorable prognostic risk groups. However, the intermediate-risk group, consisting predominantly of cytogenetically normal AML (CN-AML), itself exhibits diverse clinical outcomes and requires further characterization to allow for more optimal treatment decision-making. The recent advances in clinical genomics have led to the recategorization of CN-AML into favorable or unfavorable subgroups. The relapsing nature of AML is thought to be due to clonal heterogeneity that includes founder or driver mutations present in the leukemic stem cell population. In this article, we summarize the clinical outcomes of relevant molecular mutations and their cooccurrences in CN-AML, including NPM1, FLT3ITD, DNMT3A, NRAS, TET2, RUNX1, MLLPTD, ASXL1, BCOR, PHF6, CEBPAbiallelic, IDH1, IDH2R140, and IDH2R170, with an emphasis on their relevance to the leukemic stem cell compartment. We have reviewed the available literature and TCGA AML databases (2013) to highlight the potential role of stem cell regulating factor mutations on outcome within newly defined AML molecular subgroups.
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25
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Mutational analysis of disease relapse in patients allografted for acute myeloid leukemia. Blood Adv 2016; 1:193-204. [PMID: 29296935 DOI: 10.1182/bloodadvances.2016000760] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/31/2016] [Indexed: 01/27/2023] Open
Abstract
Disease relapse is the major cause of treatment failure after allogeneic stem cell transplantation (allo-SCT) in acute myeloid leukemia (AML). To identify AML-associated genes prognostic of AML relapse post-allo-SCT, we resequenced 35 genes in 113 adults at diagnosis, 49 of whom relapsed. Two hundred sixty-two mutations were detected in 102/113 (90%) patients. An increased risk of relapse was observed in patients with mutations in WT1 (P = .018), DNMT3A (P = .045), FLT3 ITD (P = .071), and TP53 (P = .06), whereas mutations in IDH1 were associated with a reduced risk of disease relapse (P = .018). In 29 patients, we additionally compared mutational profiles in bone marrow at diagnosis and relapse to study changes in clonal structure at relapse. In 13/29 patients, mutational profiles altered at relapse. In 9 patients, mutations present at relapse were not detected at diagnosis. In 15 patients, additional available pre-allo-SCT samples demonstrated that mutations identified posttransplant but not at diagnosis were detectable immediately prior to transplant in 2 of 15 patients. Taken together, these observations, if confirmed in larger studies, have the potential to inform the design of novel strategies to reduce posttransplant relapse highlighting the potential importance of post-allo-SCT interventions with a broad antitumor specificity in contrast to targeted therapies based on mutational profile at diagnosis.
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26
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Medeiros BC, Fathi AT, DiNardo CD, Pollyea DA, Chan SM, Swords R. Isocitrate dehydrogenase mutations in myeloid malignancies. Leukemia 2016; 31:272-281. [PMID: 27721426 PMCID: PMC5292675 DOI: 10.1038/leu.2016.275] [Citation(s) in RCA: 250] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 08/17/2016] [Accepted: 08/25/2016] [Indexed: 12/14/2022]
Abstract
Alterations to genes involved in cellular metabolism and epigenetic regulation are implicated in the pathogenesis of myeloid malignancies. Recurring mutations in isocitrate dehydrogenase (IDH) genes are detected in approximately 20% of adult patients with acute myeloid leukemia (AML) and 5% of adults with myelodysplastic syndromes (MDS). IDH proteins are homodimeric enzymes involved in diverse cellular processes, including adaptation to hypoxia, histone demethylation and DNA modification. The IDH2 protein is localized in the mitochondria and is a critical component of the tricarboxylic acid (also called the ‘citric acid' or Krebs) cycle. Both IDH2 and IDH1 (localized in the cytoplasm) proteins catalyze the oxidative decarboxylation of isocitrate to α-ketoglutarate (α-KG). Mutant IDH enzymes have neomorphic activity and catalyze reduction of α-KG to the (R) enantiomer of 2-hydroxyglutarate, which is associated with DNA and histone hypermethylation, altered gene expression and blocked differentiation of hematopoietic progenitor cells. The prognostic significance of mutant IDH (mIDH) is controversial but appears to be influenced by co-mutational status and the specific location of the mutation (IDH1-R132, IDH2-R140, IDH2-R172). Treatments specifically or indirectly targeted to mIDH are currently under clinical investigation; these therapies have been generally well tolerated and, when used as single agents, have shown promise for inducing responses in some mIDH patients when used as first-line treatment or in relapsed or refractory AML or MDS. Use of mIDH inhibitors in combination with drugs with non-overlapping mechanisms of action is especially promising, as such regimens may address the clonal heterogeneity and the multifactorial pathogenic processes involved in mIDH myeloid malignancies. Advances in mutational analysis have made testing more rapid and convenient, and less expensive; such testing should become part of routine diagnostic workup and repeated at relapse to identify patients who may benefit from treatments that target mIDH.
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Affiliation(s)
- B C Medeiros
- Division of Hematology, Department of Medicine, Stanford University School of Medicine, Stanford Cancer Center, Stanford, CA, USA
| | - A T Fathi
- Massachusetts General Hospital Cancer Center, Harvard Medical School, Boston, MA, USA
| | - C D DiNardo
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - D A Pollyea
- Division of Hematology, University of Colorado School of Medicine, Aurora, CO, USA
| | - S M Chan
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - R Swords
- Sylvester Comprehensive Cancer Center, University of Miami, Miami, FL, USA
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27
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Virijevic M, Karan-Djurasevic T, Marjanovic I, Tosic N, Mitrovic M, Djunic I, Colovic N, Vidovic A, Suvajdzic-Vukovic N, Tomin D, Pavlovic S. Somatic mutations of isocitrate dehydrogenases 1 and 2 are prognostic and follow-up markers in patients with acute myeloid leukaemia with normal karyotype. Radiol Oncol 2016; 50:385-393. [PMID: 27904446 PMCID: PMC5120579 DOI: 10.1515/raon-2016-0044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2016] [Accepted: 06/18/2016] [Indexed: 12/22/2022] Open
Abstract
Background Mutations in the isocitrate dehydrogenase 1 and 2 (IDH1 and IDH2) genes are frequent molecular lesions in acute myeloid leukaemia with normal karyotype (AML-NK). The effects of IDH mutations on clinical features and treatment outcome in AML-NK have been widely investigated, but only a few studies monitored these mutations during follow-up. Patients and methods In our study samples from 110 adult de novo AML-NK were studied for the presence of IDH1 and IDH2 mutations, their associations with other prognostic markers and disease outcome. We also analyzed the stability of these mutations during the course of the disease in complete remission (CR) and relapse. Results IDH mutations were found in 25 (23%) patients. IDH+ patients tend to have lower CR rate compared to IDH-patients (44% vs 62.2%, p = 0.152), and had slightly lower disease free survival (12 months vs 17 months; p = 0.091). On the other hand, the presence of IDH mutations had significant impact on overall survival (2 vs 7 months; p = 0.039). The stability of IDH mutations were studied sequentially in 19 IDH+ patients. All of them lost the mutation in CR, and the same IDH mutations were detected in relapsed samples. Conclusions Our study shows that the presence of IDH mutations confer an adverse effect in AML-NK patients, which in combination with other molecular markers can lead to an improved risk stratification and better treatment. Also, IDH mutations are very stable during the course of the disease and can be potentially used as markers for minimal residual disease detection.
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Affiliation(s)
| | - Teodora Karan-Djurasevic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Irena Marjanovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Natasa Tosic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
| | - Mirjana Mitrovic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Irena Djunic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Natasa Colovic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Ana Vidovic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Nada Suvajdzic-Vukovic
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Dragica Tomin
- Clinic for Hematology, Clinical Center of Serbia, Belgrade, Serbia; Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Sonja Pavlovic
- Institute of Molecular Genetics and Genetic Engineering, University of Belgrade, Belgrade, Serbia
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28
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Li C, Zhu B, Chen J, Huang X. Feature genes predicting the FLT3/ITD mutation in acute myeloid leukemia. Mol Med Rep 2016; 14:89-94. [PMID: 27177049 PMCID: PMC4918602 DOI: 10.3892/mmr.2016.5260] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 02/25/2016] [Indexed: 01/17/2023] Open
Abstract
In the present study, gene expression profiles of acute myeloid leukemia (AML) samples were analyzed to identify feature genes with the capacity to predict the mutation status of FLT3/ITD. Two machine learning models, namely the support vector machine (SVM) and random forest (RF) methods, were used for classification. Four datasets were downloaded from the European Bioinformatics Institute, two of which (containing 371 samples, including 281 FLT3/ITD mutation-negative and 90 mutation-positive samples) were randomly defined as the training group, while the other two datasets (containing 488 samples, including 350 FLT3/ITD mutation-negative and 138 mutation-positive samples) were defined as the test group. Differentially expressed genes (DEGs) were identified by significance analysis of the micro-array data by using the training samples. The classification efficiency of the SCM and RF methods was evaluated using the following parameters: Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and the area under the receiver operating characteristic curve. Functional enrichment analysis was performed for the feature genes with DAVID. A total of 585 DEGs were identified in the training group, of which 580 were upregulated and five were downregulated. The classification accuracy rates of the two methods for the training group, the test group and the combined group using the 585 feature genes were >90%. For the SVM and RF methods, the rates of correct determination, specificity and PPV were >90%, while the sensitivity and NPV were >80%. The SVM method produced a slightly better classification effect than the RF method. A total of 13 biological pathways were overrepresented by the feature genes, mainly involving energy metabolism, chromatin organization and translation. The feature genes identified in the present study may be used to predict the mutation status of FLT3/ITD in patients with AML.
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Affiliation(s)
- Chenglong Li
- Department of Hematology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Biao Zhu
- Department of Hematology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Jiao Chen
- Department of Hematology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
| | - Xiaobing Huang
- Department of Hematology, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu, Sichuan 610072, P.R. China
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29
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DNA methylation in hematopoietic development and disease. Exp Hematol 2016; 44:783-790. [PMID: 27178734 DOI: 10.1016/j.exphem.2016.04.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2016] [Revised: 04/20/2016] [Accepted: 04/21/2016] [Indexed: 12/28/2022]
Abstract
DNA methylation is an important epigenetic modification that can have profound and widespread effects on gene expression and on cellular fate and function. Recent work has indicated that DNA methylation plays a critical role in hematopoietic development and hematopoietic disease. DNA methyltransferases and Ten-eleven translocation enzymes are required to add and remove methyl "marks" from DNA, respectively, and both sets of genes have been found necessary for proper formation and maintenance of hematopoietic stem cells and for differentiation of downstream hematopoietic lineages during development. DNA methylation and demethylation enzymes have also been implicated in hematopoietic disorders such as acute myeloid leukemia and myelodysplastic syndrome. Here, we review some of the recent literature regarding the role of DNA methylation in hematopoietic health and disease.
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30
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Abstract
Acute myeloid leukaemia (AML) is a heterogeneous disease that is, in general, associated with a very poor prognosis. Multiple cytogenetic and molecular abnormalities that characterize different forms of AML have been used to better prognosticate patients and inform treatment decisions. Indeed, risk status in patients with this disease has classically been based on cytogenetic findings; however, additional molecular characteristics have been shown to inform risk assessment, including FLT3, NPM1, KIT, and CEBPA mutation status. Advances in sequencing technology have led to the discovery of novel somatic mutations in tissue samples from patients with AML, providing deeper insight into the mutational landscape of the disease. The majority of patients with AML (>97%) are found to have a clonal somatic abnormality on mutational profiling. Nevertheless, our understanding of the utility of mutation profiling in clinical practice remains incomplete and is continually evolving, and evidence-based approaches to application of these data are needed. In this Review, we discuss the evidence-base for integrating mutational data into treatment decisions for patients with AML, and propose novel therapeutic algorithms in the era of molecular medicine.
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Affiliation(s)
- Catherine C Coombs
- Leukemia Service, Department of Medicine, Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, USA
| | - Martin S Tallman
- Leukemia Service, Department of Medicine, Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, USA
- Weill Cornell Medical Center, 1300 York Avenue, New York, New York 10065, USA
| | - Ross L Levine
- Leukemia Service, Department of Medicine, Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, USA
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, USA
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31
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Emadi A, Bade NA, Stevenson B, Singh Z. Minimally-Myelosuppressive Asparaginase-Containing Induction Regimen for Treatment of a Jehovah's Witness with mutant IDH1/NPM1/NRAS Acute Myeloid Leukemia. Pharmaceuticals (Basel) 2016; 9:ph9010012. [PMID: 27064021 PMCID: PMC4812376 DOI: 10.3390/ph9010012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Revised: 02/19/2016] [Accepted: 03/08/2016] [Indexed: 12/27/2022] Open
Abstract
Treatment of patients with acute myeloid leukemia (AML) who do not wish to accept blood product transfusion, including Jehovah’s Witnesses, is extremely challenging. The use of conventional chemotherapy for induction of complete remission (CR) results in profound anemia and thrombocytopenia requiring frequent transfusions of blood products, without which such treatment will be life-threatening. Finding a well tolerable, minimally myelosuppressive induction regimen for such patients with AML is a clear example of area of unmet medical need. Here, we report a successful treatment of a 52-year-old Jehovah’s Witness with newly diagnosed AML with peg-asparaginase, vincristine and methylprednisolone. The AML was characterized with normal karyotype, and mutations in isocitrate dehydrogenase 1 (IDH1-Arg132Ser), nucleophosmin 1 (NPM1-Trp289Cysfs*12) and neuroblastoma RAS viral oncogene homolog (NRAS-G1y12Va1). After one 28-day cycle of treatment, the patient achieved complete remission with incomplete count recovery (CRi) and after the second cycle, he achieved CR with full blood count recovery. The patient has never received any blood products. Notwithstanding that myeloperoxidase-induced oxidative degradation of vincristine results in its lack of activity as monotherapy in AML, its combination with corticosteroid and asparaginase has resulted in a robust remission in this patient. Diminished steroid clearance by asparaginase activity as well as reduction in serum glutamine level induced by glutaminase enzymatic activity of asparaginase may have contributed to effective killing of the myeloblasts that carry IDH1/NPM1/NRAS mutations. In conclusion, asparaginase-containing regimens, which are approved for treatment of acute lymphoblastic leukemia (ALL) but not AML, can be used to treat patients with AML who do not accept blood transfusion.
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Affiliation(s)
- Ashkan Emadi
- School of Medicine, Marlene & Stewart Greenebaum Cancer Center, University of Maryland, 22 South Greene Street, Room N9E24, Baltimore, MD 21201, USA.
| | - Najeebah A Bade
- School of Medicine, Marlene & Stewart Greenebaum Cancer Center, University of Maryland, 22 South Greene Street, Room N9E24, Baltimore, MD 21201, USA.
| | - Brandi Stevenson
- School of Medicine, Marlene & Stewart Greenebaum Cancer Center, University of Maryland, 22 South Greene Street, Room N9E24, Baltimore, MD 21201, USA.
| | - Zeba Singh
- Department of Pathology, School of Medicine, University of Maryland, Baltimore, MD 21201, USA.
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Hou HA, Tien HF. Mutations in epigenetic modifiers in acute myeloid leukemia and their clinical utility. Expert Rev Hematol 2016; 9:447-69. [DOI: 10.1586/17474086.2016.1144469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hsin-An Hou
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
| | - Hwei-Fang Tien
- Division of Hematology, Department of Internal Medicine, National Taiwan University Hospital, National Taiwan University, Taipei, Taiwan
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Abstract
Aberrant DNA methylation is a characteristic feature of cancer including blood malignancies. Mutations in the DNA methylation regulators DNMT3A, TET1/2 and IDH1/2 are recurrent in leukemia and lymphoma. Specific and distinct DNA methylation patterns characterize subtypes of AML and lymphoma. Regulatory regions such as promoter CpG islands, CpG shores and enhancers show changes in methylation during transformation. However, the reported poor correlation between changes in methylation and gene expression in many mouse models and human studies reflects the complexity in the precise molecular mechanism for why aberrant DNA methylation promotes malignancies. This review will summarize current concepts regarding the mechanisms behind aberrant DNA methylation in hematopoietic malignancy and discuss its importance in cancer prognosis, tumor heterogeneity and relapse.
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Affiliation(s)
- Maria Guillamot
- Howard Hughes Medical Institute and Department of Pathology, NYU School of Medicine, New York, NY, 10016, USA; Laura and Isaac Perlmutter Cancer Center and Helen L. and Martin S. Kimmel Center for Stem Cell Biology, NYU School of Medicine, New York, NY, 10016, USA
| | - Luisa Cimmino
- Howard Hughes Medical Institute and Department of Pathology, NYU School of Medicine, New York, NY, 10016, USA; Laura and Isaac Perlmutter Cancer Center and Helen L. and Martin S. Kimmel Center for Stem Cell Biology, NYU School of Medicine, New York, NY, 10016, USA
| | - Iannis Aifantis
- Howard Hughes Medical Institute and Department of Pathology, NYU School of Medicine, New York, NY, 10016, USA; Laura and Isaac Perlmutter Cancer Center and Helen L. and Martin S. Kimmel Center for Stem Cell Biology, NYU School of Medicine, New York, NY, 10016, USA
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Raveendran S, Sarojam S, Vijay S, Prem S, Sreedharan H. A Case Report of Concurrent IDH1 and NPM1 Mutations in a Novel t(X;2)(q28;p22) Translocation in Acute Myeloid Leukaemia without Maturation (AML-M1). Malays J Med Sci 2015; 22:93-97. [PMID: 28239274 PMCID: PMC5295739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Accepted: 04/08/2015] [Indexed: 06/06/2023] Open
Abstract
Acute myeloid leukaemia (AML) is one of the fatal haematological malignancies as a consequence of its genetic heterogeneity. At present, the prediction of the clinical response to treatment for AML is based not only on detection of cytogenetic aberrations but also by analysing certain molecular genetic alterations. There are limited in sights into the contribution, disease progression, treatment outcome, and characterisation with respect to the uncommon chromosomal abnormalities leading to AML. Here, we describe the clinical, morphological, cytogenetic, and mutational findings of a 52-year-old female patient with AML without maturation (AML-M1). Conventional karyotyping and spectral karyotyping (SKY) were done on metaphase chromosomes from bone marrow cells at the time of diagnosis. A mutation analysis was performed on the hotspot regions of various genes, including FLT3, CEBPA, NPM1, RAS, c-KIT, IDH1 and IDH2. Cytogenetic and mutation analyses revealed a novel translocation, t(X;2)(q28;p22), with both NPM1 and IDH1 mutations. To the best of our knowledge, the presence of both NPM1 and IDH1 mutations in t(X;2)(q28;p22) is a novel finding in AML.
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Affiliation(s)
- Sureshkumar Raveendran
- Division of Cancer Research, Regional Cancer Centre, Medical College, Thiruvananthapuram, Kerala 695011, India
| | - Santhi Sarojam
- Division of Cancer Research, Regional Cancer Centre, Medical College, Thiruvananthapuram, Kerala 695011, India
| | - Sangeetha Vijay
- Division of Cancer Research, Regional Cancer Centre, Medical College, Thiruvananthapuram, Kerala 695011, India
| | - Shruti Prem
- Division of Medical Oncology, Regional Cancer Centre, Medical College, Thiruvananthapuram, Kerala 695011, India
| | - Hariharan Sreedharan
- Division of Cancer Research, Regional Cancer Centre, Medical College, Thiruvananthapuram, Kerala 695011, India
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Aref S, Kamel Areida ES, Abdel Aaal MF, Adam OM, El-Ghonemy MS, El-Baiomy MA, Zeid TA. Prevalence and Clinical Effect of IDH1 and IDH2 Mutations Among Cytogenetically Normal Acute Myeloid Leukemia Patients. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2015; 15:550-5. [DOI: 10.1016/j.clml.2015.05.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 05/11/2015] [Accepted: 05/29/2015] [Indexed: 11/16/2022]
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Nebbioso A, Benedetti R, Conte M, Iside C, Altucci L. Genetic mutations in epigenetic modifiers as therapeutic targets in acute myeloid leukemia. Expert Opin Ther Targets 2015; 19:1187-202. [PMID: 26028314 DOI: 10.1517/14728222.2015.1051728] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
INTRODUCTION Despite enormous insights into the molecular mechanisms of acute myeloid leukemia (AML) pathophysiology, this disease is still fatal in the majority of patients, highlighting the urgent need for novel biomarkers useful in AML prognosis and therapy. AREAS COVERED The advent of modern sequencing technologies has allowed the identification of genetic mutations in genes encoding for specific enzymes involved in the epigenetic regulation of gene expression. The authors review recent data demonstrating the involvement of mutations in genes encoding for epigenetic players and their complex combination with somatic genetic mutations in the pathogenesis of AML. They also discuss the prognostic and therapeutic implications of these findings. EXPERT OPINION Current clinical and preclinical studies are underscoring the importance of targeting epigenetic modifiers as new biomarkers for a better prognostic risk stratification and therapeutic evaluation of intermediate-risk patients. Combining data from traditional and modern methodologies will allow a definition of the complex networks of epigenetic changes and molecular interactions between candidate epitargets and key regulators of hematopoiesis. It will thus be possible to achieve an overview of potential aberrant mechanisms driving leukemogenesis in different classes of AML patients. Such an improved approach could pave the way towards 'personalized' therapies.
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Affiliation(s)
- Angela Nebbioso
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples , Via L. De Crecchio 7, 80138 Naples , Italy
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Raveendran S, Sarojam S, Vijay S, Geetha AC, Sreedharan J, Narayanan G, Sreedharan H. Mutation Analysis of IDH1/2 Genes in Unselected De novo Acute Myeloid Leukaemia Patients in India - Identification of A Novel IDH2 Mutation. Asian Pac J Cancer Prev 2015; 16:4095-101. [PMID: 25987093 DOI: 10.7314/apjcp.2015.16.9.4095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
IDH1/2 mutations which result in alternation in DNA methylation pattern are one of the most common methylation associated mutations in Acute myeloid leukaemia. IDH1/2 mutations frequently associated with higher platelet level, normal cytogentics and NPM1 mutations. Here we analyzed IDH1/2 mutations in 200 newly diagnosed unselected Indian adult AML patients and investigated their correlation with clinical, cytogenetic parameters along with cooperating NPM1 mutation. We detected 5.5% and 4% mutations in IDH1/2 genes, respectively. Except IDH2 c.515_516GG>AA mutation, all the other identified mutations were reported mutations. Similar to reported c.515G>A mutation, the novel c.515_516GG>AA mutation replaces 172nd arginine to lysine in the active site of the enzyme. Even though there was a preponderance of IDH1/2 mutations in NK-AML, cytogenetically abnormal patients also harboured IDH1/2 mutations. IDH1 mutations showed significant higher platelet count and NPM1 mutations. IDH2 mutated patients displayed infrequent NPM1 mutations and lower WBC count. All the NPM1 mutations in the IDH1/2 mutated cases showed type A mutation. The present data suggest that IDH1/2 mutations are associated with normal cytogenetics and type A NPM1 mutations in adult Indian AML patients.
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Ilyas AM, Ahmad S, Faheem M, Naseer MI, Kumosani TA, Al-Qahtani MH, Gari M, Ahmed F. Next generation sequencing of acute myeloid leukemia: influencing prognosis. BMC Genomics 2015; 16 Suppl 1:S5. [PMID: 25924101 PMCID: PMC4315161 DOI: 10.1186/1471-2164-16-s1-s5] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Acute myeloid leukemia (AML) is a clonal disorder of the blood forming cells characterized by accumulation of immature blast cells in the bone marrow and peripheral blood. Being a heterogeneous disease, AML has been the subject of numerous studies that focus on unraveling the clinical, cellular and molecular variations with the aim to better understand and treat the disease. Cytogenetic-risk stratification of AML is well established and commonly used by clinicians in therapeutic management of cases with chromosomal abnormalities. Successive inclusion of novel molecular abnormalities has substantially modified the classification and understanding of AML in the past decade. With the advent of next generation sequencing (NGS) technologies the discovery of novel molecular abnormalities has accelerated. NGS has been successfully used in several studies and has provided an unprecedented overview of molecular aberrations as well as the underlying clonal evolution in AML. The extended spectrum of abnormalities discovered by NGS is currently under extensive validation for their prognostic and therapeutic values. In this review we highlight the recent advances in the understanding of AML in the NGS era.
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