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Han B, Jing Y, Bi X, Lin Y, Li H, Li H, Ru K, Yang S. t(2;2;21;8)(p21;q37;q22;q22), a novel four-way complex translocation involving variant t(8;21) in case of acute myeloid leukemia : A case report and literature review. Cancer Genet 2024; 284-285:1-4. [PMID: 38460349 DOI: 10.1016/j.cancergen.2024.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 08/25/2023] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Chromosomal translocation serves as a crucial diagnostic marker in the classification of acute myeloid leukemia. Among the most prevalent cytogenetic abnormalities is t(8;21)(q22;q22), typically associated with the FAB subtype AML-M2. On occasion, alternative forms of t(8;21) have been observed. This report presents a case of AML with RUNX1::RUNX1T1, wherein the karyotype revealed t(2;2;21;8)(p21;q37;q22;q22), representing the first instance of a variant t(8;21) involving both chromosomes 2. The combination of routine karyotype analysis and fluorescence in situ hybridization proves to be an effective method for identifying complex translocations of t(8;21).
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MESH Headings
- Humans
- Translocation, Genetic
- Leukemia, Myeloid, Acute/genetics
- Chromosomes, Human, Pair 21/genetics
- Chromosomes, Human, Pair 8/genetics
- Core Binding Factor Alpha 2 Subunit/genetics
- In Situ Hybridization, Fluorescence
- Male
- Chromosomes, Human, Pair 2/genetics
- RUNX1 Translocation Partner 1 Protein/genetics
- Karyotyping
- Female
- Adult
- Oncogene Proteins, Fusion/genetics
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Affiliation(s)
- Bingbing Han
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China
| | - Yu Jing
- Department of Haematology, The Fifth Medical centre of Chinese PLA General Hospital, Beijing, China
| | - Xiaoyu Bi
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China
| | - Yani Lin
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China
| | - Huilan Li
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China
| | - Hongyu Li
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China
| | - Kun Ru
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China; Department of Pathology and Lab Medicine, Shandong Cancer Hospital, Jinan, Shandong, China
| | - Shaobin Yang
- Sino-US Diagnostics Lab, Tianjin Enterprise Key Laboratory of Al-aided Hematopathology Diagnosis, 5 Xinghua No.3 branch road, Tianjin, China.
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2
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Thomas ME, Qi W, Walsh MP, Ma J, Westover T, Abdelhamed S, Ezzell LJ, Rolle C, Xiong E, Rosikiewicz W, Xu B, Loughran AJ, Pruett-Miller SM, Janke LJ, Klco JM. Functional characterization of cooperating MGA mutations in RUNX1::RUNX1T1 acute myeloid leukemia. Leukemia 2024; 38:991-1002. [PMID: 38454121 PMCID: PMC11073986 DOI: 10.1038/s41375-024-02193-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 02/16/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
MGA (Max-gene associated) is a dual-specificity transcription factor that negatively regulates MYC-target genes to inhibit proliferation and promote differentiation. Loss-of-function mutations in MGA have been commonly identified in several hematological neoplasms, including acute myeloid leukemia (AML) with RUNX1::RUNX1T1, however, very little is known about the impact of these MGA alterations on normal hematopoiesis or disease progression. We show that representative MGA mutations identified in patient samples abolish protein-protein interactions and transcriptional activity. Using a series of human and mouse model systems, including a newly developed conditional knock-out mouse strain, we demonstrate that loss of MGA results in upregulation of MYC and E2F targets, cell cycle genes, mTOR signaling, and oxidative phosphorylation in normal hematopoietic cells, leading to enhanced proliferation. The loss of MGA induces an open chromatin state at promoters of genes involved in cell cycle and proliferation. RUNX1::RUNX1T1 expression in Mga-deficient murine hematopoietic cells leads to a more aggressive AML with a significantly shortened latency. These data show that MGA regulates multiple pro-proliferative pathways in hematopoietic cells and cooperates with the RUNX1::RUNX1T1 fusion oncoprotein to enhance leukemogenesis.
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Affiliation(s)
- Melvin E Thomas
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Wenqing Qi
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Michael P Walsh
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Jing Ma
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Tamara Westover
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Sherif Abdelhamed
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Lauren J Ezzell
- Graduate School of Biomedical Sciences, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Chandra Rolle
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Emily Xiong
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Wojciech Rosikiewicz
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Beisi Xu
- Center for Applied Bioinformatics, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Allister J Loughran
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Shondra M Pruett-Miller
- Center for Advanced Genome Engineering, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Laura J Janke
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA
| | - Jeffery M Klco
- Department of Pathology, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Mail Stop 342, Memphis, TN, 38105, USA.
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3
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Breccia M. Atypical CML: diagnosis and treatment. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2023; 2023:476-482. [PMID: 38066919 PMCID: PMC10727105 DOI: 10.1182/hematology.2023000448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Atypical chronic myeloid leukemia (aCML) is included in the group of myelodysplastic/myeloproliferative neoplasms by the International Consensus Classification and has been renamed as MDS/MPN with neutrophilia by the fifth edition of World Health Organization classification. It is always characterized by morphologic identification of granulocytic dysplasia with >10% circulating immature myeloid cells, 2 distinguished features that differentiate this disease among the others. Somatic mutations may help to diagnose but are not specifically pathognomonic of the disease, with the most detected including ASXL1, SETBP1, NRAS, KRAS, SRSF2, and TET2 and with low-frequency CBL, CSF3R, JAK2, and ETNK1. The genomic landscape of aCML has been recently unravelling, revealing that SETBP1 and ETNK1 are usually not ancestral but secondary events associated with disease progression. Unfortunately, until now, no consensus on risk stratification and treatment has been developed: Mayo Clinic prognostic score identified as adverse events age >67 years, hemoglobin level <10 g/dL, and TET2 mutations. Although some possible genetic markers have been identified, allogeneic transplant remains the only curative strategy.
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MESH Headings
- Humans
- Aged
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/diagnosis
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/genetics
- Leukemia, Myeloid, Chronic, Atypical, BCR-ABL Negative/therapy
- Myelodysplastic-Myeloproliferative Diseases/diagnosis
- Mutation
- Prognosis
- Disease Progression
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Affiliation(s)
- Massimo Breccia
- Department of Translational and Precision Medicine, Sapienza University, Rome, Italy
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4
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Elwafa RAHA, Bordiny ME, Salama M, Fawzy A, Omar OM. Cyclin D2 gene variance and expression level in pediatric acute lymphoblastic leukemia. Pediatr Blood Cancer 2023; 70:e30678. [PMID: 37731174 DOI: 10.1002/pbc.30678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 08/22/2023] [Accepted: 09/04/2023] [Indexed: 09/22/2023]
Abstract
BACKGROUND Cyclin D2 (CCND2) is a crucial player in cell cycle regulation. CCND2 polymorphisms contribute to cancer predisposition. OBJECTIVES To evaluate the association of CCND2 rs3217927 single nucleotide polymorphisms (SNP) and its expression levels with acute lymphoblastic leukemia (ALL) susceptibility in Egyptian children and its potential prognostic role. METHODS The 5' nuclease allelic discrimination assay was used to evaluate the frequency of CCND2 rs3217927 SNP in 80 newly diagnosed children with ALL and 80 age- and sex-matched controls. CCND2 relative expression levels were determined by real-time quantitative polymerase chain reaction. RESULTS The genotype analysis revealed that the GG genotype and G allele were significantly more prevalent among ALL patients than controls (p ˂ .001). Regression analysis demonstrated that Egyptian children carrying only one G allele had about 31-fold increased risk to develop ALL compared to A allele carriers. CCND2 was overexpressed in ALL patients compared to controls (p < .001). The CCND2 overexpression was associated with the GG genotype and G allele (p < .001). Furthermore, G allele was an independent negative prognostic marker for central nervous system (CNS) involvement (odds ratio [OR] = 4.676; 95% confidence interval [CI]: 1.2-18.6), risk stratification (OR = 38; 95% CI: 7.7-188.2), and chemoresistance (OR = 9.864; 95% CI: 5.6-70.3) in ALL patients. CONCLUSIONS G allele of CCND2 rs3217927 SNP might be associated with increased risk for ALL in Egyptian children besides being an independent negative prognostic marker for their risk stratification and therapeutic outcome. CCND2 rs3217927 SNP genotyping might be used to demarcate ALL patients with aggressive disease phenotypes who may be candidate for alternative targeted therapeutic strategies.
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Affiliation(s)
| | - Magdy El Bordiny
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Mostafa Salama
- Department of Pediatrics, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Amira Fawzy
- Department of Clinical and Chemical Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Omneya Magdy Omar
- Department of Pediatrics, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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5
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Wu PS, Wang CY, Hsu HJ, Yen JH, Wu MJ. 8-Hydroxydaidzein Induces Apoptosis and Inhibits AML-Associated Gene Expression in U-937 Cells: Potential Phytochemical for AML Treatment. Biomolecules 2023; 13:1575. [PMID: 38002257 PMCID: PMC10669020 DOI: 10.3390/biom13111575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/30/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND 8-hydroxydaidzein (8-OHD) is a compound derived from daidzein, known for its anti-inflammatory and anti-proliferative properties in K562 human chronic myeloid leukemia (CML) cells. However, its effects on acute myeloid leukemia (AML) cells have not been fully understood. METHOD To investigate its potential anti-AML mechanism, we employed an integrated in vitro-in silico approach. RESULTS Our findings demonstrate that 8-OHD suppresses the expression of CDK6 and CCND2 proteins and induces cell apoptosis in U-937 cells by activating Caspase-7 and cleaving PARP-1. Microarray analysis revealed that 8-OHD downregulates differentially expressed genes (DEGs) associated with rRNA processing and ribosome biogenesis pathways. Moreover, AML-target genes, including CCND2, MYC, NPM1, FLT3, and TERT, were downregulated by 8-OHD. Additionally, molecular docking software predicted that 8-OHD has the potential to interact with CDK6, FLT3, and TERT proteins, thereby reducing their activity and inhibiting cell proliferation. Notably, we discovered a synergic pharmacological interaction between 8-OHD and cytarabine (Ara-C). CONCLUSIONS Overall, this study provides insights into the therapeutic applications of 8-OHD in treating AML and elucidates its underlying mechanisms of action.
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Affiliation(s)
- Pei-Shan Wu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan 717301, Taiwan;
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan 717301, Taiwan
| | - Chih-Yang Wang
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, Taipei Medical University, Taipei 110301, Taiwan;
- Graduate Institute of Cancer Biology and Drug Discovery, Taipei Medical University, Taipei 110301, Taiwan
| | - Hao-Jen Hsu
- Department of Biomedical Sciences and Engineering, Tzu Chi University, Hualien 970, Taiwan;
| | - Jui-Hung Yen
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien 970374, Taiwan;
- Institute of Medical Sciences, Tzu Chi University, Hualien 970374, Taiwan
| | - Ming-Jiuan Wu
- Department of Pharmacy, Chia Nan University of Pharmacy and Science, Tainan 717301, Taiwan;
- Department of Biotechnology, Chia Nan University of Pharmacy and Science, Tainan 717301, Taiwan
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6
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Iaquinta G, Scalzulli E, Angeloni S, Carmosino I, Costa A, Ielo C, Passucci M, Masucci C, Martelli M, Grammatico P, Breccia M. CCND2 mutations in atypical chronic myeloid leukemia: a report of two cases. Leuk Lymphoma 2023; 64:1730-1732. [PMID: 37435984 DOI: 10.1080/10428194.2023.2232495] [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: 03/11/2023] [Accepted: 06/25/2023] [Indexed: 07/13/2023]
Abstract
Atypical chronic myeloid leukemia (aCML) is a rare MDS/MPN disease characterized by the absence of BCR::ABL1 rearrangement and well known typical mutations associated with myeloproliferative disorders. Mutational landscape associated with this disease was recently described with frequent involvement of SETBP1 and ETNK1 mutations. CCND2 mutations have not been frequently detected in MPN or MDS/MPN patients. We describe two cases of aCML with two CCND2 mutations in 280 and 281 codons which rapidly develop progressive characteristics, and we reviewed the literature about this unfavorable association, suggesting a role as a new possible marker of aggressive disease.
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Affiliation(s)
- Giovanni Iaquinta
- U.O.C. Medical Genetics Laboratory, Department of Experimental Medicine, San Camillo-Forlanini Hospital - Sapienza University, Rome, Italy
| | - Emilia Scalzulli
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Silvia Angeloni
- U.O.C. Medical Genetics Laboratory, Department of Experimental Medicine, San Camillo-Forlanini Hospital - Sapienza University, Rome, Italy
| | - Ida Carmosino
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Alessandro Costa
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Claudia Ielo
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Mauro Passucci
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Chiara Masucci
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Maurizio Martelli
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
| | - Paola Grammatico
- U.O.C. Medical Genetics Laboratory, Department of Experimental Medicine, San Camillo-Forlanini Hospital - Sapienza University, Rome, Italy
| | - Massimo Breccia
- Department of Translational and Precision Medicine, Az. Policlinico Umberto I-Sapienza University, Rome, Italy
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7
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Klco J, Thomas M, Qi W, Walsh M, Ma J, Westover T, Abdelhamed S, Ezzell L, Rolle C, Xiong E, Rosikiewicz W, Xu B, Pruett-Miller S, Loughran A, Janke L. Functional Characterization of Cooperating MGA Mutations in RUNX1::RUNX1T1 Acute Myeloid Leukemia. RESEARCH SQUARE 2023:rs.3.rs-3315059. [PMID: 37790524 PMCID: PMC10543392 DOI: 10.21203/rs.3.rs-3315059/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
MGA (Max-gene associated) is a dual-specificity transcription factor that negatively regulates MYC-target genes to inhibit proliferation and promote differentiation. Loss-of-function mutations in MGA have been commonly identified in several hematological neoplasms, including acute myeloid leukemia (AML) with RUNX1::RUNX1T1, however, very little is known about the impact of these MGA alterations on normal hematopoiesis or disease progression. We show that representative MGA mutations identified in patient samples abolish protein-protein interactions and transcriptional activity. Using a series of human and mouse model systems, including a newly developed conditional knock-out mouse strain, we demonstrate that loss of MGA results in upregulation of MYC and E2F targets, cell cycle genes, mTOR signaling, and oxidative phosphorylation in normal hematopoietic cells, leading to enhanced proliferation. The loss of MGA induces an open chromatin state at promotors of genes involved in cell cycle and proliferation. RUNX1::RUNX1T1 expression in Mga-deficient murine hematopoietic cells leads to a more aggressive AML with a significantly shortened latency. These data show that MGA regulates multiple pro-proliferative pathways in hematopoietic cells and cooperates with the RUNX1::RUNX1 T1 fusion oncoprotein to enhance leukemogenesis.
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Affiliation(s)
| | | | | | | | - Jing Ma
- St. Jude Children's Research Hospital
| | | | | | | | | | | | | | - Beisi Xu
- St Jude Children's Research Hospital
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8
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Saleban M, Harris EL, Poulter JA. D-Type Cyclins in Development and Disease. Genes (Basel) 2023; 14:1445. [PMID: 37510349 PMCID: PMC10378862 DOI: 10.3390/genes14071445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
D-type cyclins encode G1/S cell cycle checkpoint proteins, which play a crucial role in defining cell cycle exit and progression. Precise control of cell cycle exit is vital during embryonic development, with defects in the pathways regulating intracellular D-type cyclins resulting in abnormal initiation of stem cell differentiation in a variety of different organ systems. Furthermore, stabilisation of D-type cyclins is observed in a wide range of disorders characterized by cellular over-proliferation, including cancers and overgrowth disorders. In this review, we will summarize and compare the roles played by each D-type cyclin during development and provide examples of how their intracellular dysregulation can be an underlying cause of disease.
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Affiliation(s)
- Mostafa Saleban
- Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK
| | - Erica L Harris
- Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK
| | - James A Poulter
- Division of Molecular Medicine, Leeds Institute of Medical Research, University of Leeds, Leeds LS2 9JT, UK
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9
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CCND2 and miR-206 as potential biomarkers in the clinical diagnosis of thyroid carcinoma by fine-needle aspiration cytology. World J Surg Oncol 2023; 21:22. [PMID: 36694220 PMCID: PMC9872353 DOI: 10.1186/s12957-023-02899-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 01/10/2023] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND To investigate the relationship between cyclin D2 (CCND2) and miR-206 expression in fine-needle aspiration cytology of thyroid carcinoma. METHODS A total of 65 patients with thyroid carcinoma were selected as the subjects and 65 patients with benign thyroid nodules were in control group. The fine-needle aspiration cytology of thyroid nodules was performed. CCND2 and miR-206 levels were detected by PCR. RESULTS Compared with the patients with benign thyroid nodules, the expression level of miR-206 in fine-needle aspiration cytology of thyroid cancer patients decreased significantly and the expression level of CCND2 increased significantly. CCND2 and miR-206 expression was negatively correlated in thyroid cancer tissues. Area under curve (AUC) of miR-206 level in the diagnosis of thyroid cancer was 0.889, and the sensitivity and specificity were 92.3% and 81.5%, respectively. AUC of CCND2 level in the diagnosis of thyroid cancer was 0.837, and the sensitivity and specificity were 67.7% and 89.2%, respectively. The AUC of combined detection of CCND2 and miR-206 in the diagnosis of thyroid cancer was 0.959, and the sensitivity and specificity were 93.8% and 87.7%, respectively. The levels of miR-206 and CCND2 were significantly correlated with TNM staging and lymph node metastasis. CONCLUSIONS miR-206 and CCND2 may become new biomarkers for clinical diagnosis of thyroid cancer based on the fine-needle aspiration cytology of thyroid nodules.
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10
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Li Q, Li Y, Sun X, Zhang X, Zhang M. Genomic Analysis of Abnormal DNAM Methylation in Parathyroid Tumors. Int J Endocrinol 2022; 2022:4995196. [PMID: 35879975 PMCID: PMC9308548 DOI: 10.1155/2022/4995196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 05/20/2022] [Accepted: 06/17/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Parathyroid tumors are common endocrine neoplasias associated with primary hyperparathyroidism. Although numerous studies have studied the subject, the predictive value of gene biomarkers nevertheless remains low. METHODS In this study, we performed genomic analysis of abnormal DNA methylation in parathyroid tumors. After data preprocessing, differentially methylated genes were extracted from patients with parathyroid tumors by using t-tests. RESULTS After refinement of the basic differential methylation, 28241 unique CpGs (634 genes) were identified to be methylated. The methylated genes were primarily involved in 7 GO terms, and the top 3 terms were associated with cyst morphogenesis, ion transport, and GTPase signal. Following pathway enrichment analyses, a total of 10 significant pathways were enriched; notably, the top 3 pathways were cholinergic synapses, glutamatergic synapses, and oxytocin signaling pathways. Based on PPIN and ego-net analysis, 67 ego genes were found which could completely separate the diseased group from the normal group. The 10 most prominent genes included POLA1, FAM155 B, AMMECR1, THOC2, CCND1, CLDN11, IDS, TST, RBPJ, and GNA11. SVM analysis confirmed that this grouping approach was precise. CONCLUSIONS This research provides useful data to further explore novel genes and pathways as therapeutic targets for parathyroid tumors.
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Affiliation(s)
- Qing Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University &Shandong Provincial Qianfoshan Hospital, No 16766 Jingshi Road, Jinan, Shandong, China
| | - Yonghao Li
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University &Shandong Provincial Qianfoshan Hospital, No 16766 Jingshi Road, Jinan, Shandong, China
| | - Ximei Sun
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University &Shandong Provincial Qianfoshan Hospital, No 16766 Jingshi Road, Jinan, Shandong, China
| | - Xinlei Zhang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University &Shandong Provincial Qianfoshan Hospital, No 16766 Jingshi Road, Jinan, Shandong, China
| | - Mei Zhang
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University &Shandong Provincial Qianfoshan Hospital, No 16766 Jingshi Road, Jinan, Shandong, China
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11
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Efficacy of a combination therapy targeting CDK4/6 and autophagy in a mouse xenograft model of t(8;21) acute myeloid leukemia. Biochem Biophys Rep 2021; 27:101099. [PMID: 34430715 PMCID: PMC8371187 DOI: 10.1016/j.bbrep.2021.101099] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/26/2021] [Accepted: 08/04/2021] [Indexed: 01/07/2023] Open
Abstract
One of the most frequent cytogenetic abnormalities in acute myeloid leukemia (AML) is t(8;21). Although patients with t(8;21) AML have a more favorable prognosis than other cytogenetic subgroups, relapse is still common and novel therapeutic approaches are needed. A recent study showed that t(8;21) AML is characterized by CCND2 deregulation and that co-inhibition of CDK4/6 and autophagy induces apoptosis in t(8;21) AML cells. In this study, we examined the in vivo effects of co-inhibiting CDK4/6 and autophagy. We used a mouse model in which t(8;21)-positive Kasumi-1 cells were subcutaneously inoculated into NOD/Shi-scid IL2Rgnull mice. The mice were treated with the autophagy inhibitor chloroquine (CQ), a CDK4/6 inhibitor (either abemaciclib or palbociclib), or a CDK4/6 inhibitor plus CQ. After 20 days of treatment, tumor volume was measured, and immunostaining and transmission electron microscopy observations were performed. There was no change in tumor growth in CQ-treated mice. However, mice treated with a CDK4/6 inhibitor plus CQ had significantly less tumor growth than mice treated with a CDK4/6 inhibitor alone. CDK4/6 inhibitor treatment increased the formation of autophagosomes. The number of single-strand DNA-positive (apoptotic) cells was significantly higher in the tumors of mice treated with a CDK4/6 inhibitor plus CQ than in mice treated with either CQ or a CDK4/6 inhibitor. These results show that CDK4/6 inhibition induces autophagy, and that co-inhibition of CDK4/6 and autophagy induces apoptosis in t(8;21) AML cells in vivo. The results suggest that inhibiting CDK4/6 and autophagy could be a novel and promising therapeutic strategy in t(8;21) AML. Inhibiting CDK4/6 induces autophagy in t (8; 21) AML cells in vivo. Inhibiting CDK4/6 and autophagy suppresses t (8; 21) AML cell growth in vivo. Inhibiting CDK4/6 and autophagy induces apoptosis in t (8; 21) AML cells in vivo.
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12
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Xue L, Li C, Ren J, Wang Y. KDM4C contributes to cytarabine resistance in acute myeloid leukemia via regulating the miR-328-3p/CCND2 axis through MALAT1. Ther Adv Chronic Dis 2021; 12:2040622321997259. [PMID: 34394903 PMCID: PMC8358730 DOI: 10.1177/2040622321997259] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 02/03/2021] [Indexed: 11/17/2022] Open
Abstract
Aims Acute myeloid leukemia (AML) is an aggressive hematologic neoplasm, in which relapse due to drug resistance is the main cause for treatment failure and the disease progression. In this study, we aimed to investigate the molecular mechanism of KDM4C-dependent MALAT1/miR-328-3p/CCND2 axis in cytarabine (Ara-C) resistance in the context of AML. Methods Bioinformatics analysis was performed to predict the targeting relationships among KDM4C, MALAT1, miR-328-3p, and CCND2 in AML, which were validated with chromatin immunoprecipitation and dual-luciferase reporter assay. Methylation-specific polymerase chain reaction was conducted to detect the methylation of MALAT1 promoter. After conducting gain- and loss-of-function assays, we investigated the effect of KDM4C on cell Ara-C resistance. A NOD/SCID mouse model was established to further investigate the roles of KDM4C/MALAT1/miR-328-3p/CCND2 in Ara-C resistant AML cells. Results KDM4C expression was upregulated in AML. KDM4C upregulation promoted the demethylation in the promoter region of MALAT1 to increase its expression, MALAT1 targeted and inhibited miR-328-3p expression, enhancing the Ara-C resistance of HL-60/A. miR-328-3p targeted and suppressed the expression of CCND2 in HL-60/A to inhibit the Ara-C resistance. Mechanistically, KDM4C regulated miR-328-3p/CCND2 through MALAT1, resulting in Ara-C resistance in AML. Findings in an in vivo xenograft NOD/SCID mouse model further confirmed the contribution of KDM4C/MALAT1/miR-328-3p/CCND2 in the Ara-C resistant AML. Conclusion Our study demonstrated that KDM4C may up-regulate MALAT1 expression, which decreases the expression of miR-328-3p. The downregulation of miR-328-3p increased the level of CCND2, which induced the Ara-C resistance in AML.
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Affiliation(s)
- Lu Xue
- Department of Pediatrics Hematology, The First Hospital of Jilin University, Changchun, P.R. China
| | - Chunhuai Li
- Department of Pediatrics Hematology, The First Hospital of Jilin University, Changchun, P.R. China
| | - Jin Ren
- Department of Respiratory Medicine, The Second Hospital of Jilin University, Changchun, P.R. China
| | - Yue Wang
- Department of Pediatrics Hematology, The First Hospital of Jilin University, No. 1, Xinmin Street, Chaoyang District, Changchun, Jilin Province 130021, P.R. China
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13
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The Prognostic Significance of the BIN1 and CCND2 Gene in Adult Patients with Acute Myeloid Leukemia. Indian J Hematol Blood Transfus 2021; 38:481-491. [DOI: 10.1007/s12288-021-01479-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/28/2021] [Indexed: 10/20/2022] Open
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14
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Smith CC, Viny AD, Massi E, Kandoth C, Socci ND, Rapaport F, Najm M, Medina-Martinez JS, Papaemmanuil E, Tarver TC, Hsu HH, Le MH, West B, Bollag G, Taylor BS, Levine RL, Shah NP. Recurrent Mutations in Cyclin D3 Confer Clinical Resistance to FLT3 Inhibitors in Acute Myeloid Leukemia. Clin Cancer Res 2021; 27:4003-4011. [PMID: 34103301 DOI: 10.1158/1078-0432.ccr-20-3458] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 03/25/2021] [Accepted: 05/14/2021] [Indexed: 12/28/2022]
Abstract
PURPOSE Biomarkers of response and resistance to FLT3 tyrosine kinase inhibitors (TKI) are still emerging, and optimal clinical combinations remain unclear. The purpose of this study is to identify co-occurring mutations that influence clinical response to the novel FLT3 inhibitor pexidartinib (PLX3397). EXPERIMENTAL DESIGN We performed targeted sequencing of pretreatment blasts from 29 patients with FLT3 internal tandem duplication (ITD) mutations treated on the phase I/II trial of pexidartinib in relapsed/refractory FLT3-ITD+ acute myeloid leukemia (AML). We sequenced 37 samples from 29 patients with available material, including 8 responders and 21 non-responders treated at or above the recommended phase II dose of 3,000 mg. RESULTS Consistent with other studies, we identified mutations in NRAS, TP53, IDH2, and a variety of epigenetic and transcriptional regulators only in non-responders. Among the most frequently mutated genes in non-responders was Cyclin D3 (CCND3). A total of 3 individual mutations in CCND3 (Q276*, S264R, and T283A) were identified in 2 of 21 non-responders (one patient had both Q276* and S264R). No CCND3 mutations were found in pexidartinib responders. Expression of the Q276* and T283A mutations in FLT3-ITD MV4;11 cells conferred resistance to apoptosis, decreased cell-cycle arrest, and increased proliferation in the presence of pexidartinib and other FLT3 inhibitors. Inhibition of CDK4/6 activity in CCND3 mutant MV4;11 cells restored pexidartinib-induced cell-cycle arrest but not apoptosis. CONCLUSIONS Mutations in CCND3, a gene not commonly mutated in AML, are a novel cause of clinical primary resistance to FLT3 inhibitors in AML and may have sensitivity to CDK4/6 inhibition.
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Affiliation(s)
- Catherine C Smith
- Division of Hematology/Oncology, University of California, San Francisco, California. .,Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California
| | - Aaron D Viny
- Human Oncology & Pathogenesis Program and Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Evan Massi
- Division of Hematology/Oncology, University of California, San Francisco, California
| | - Cyriac Kandoth
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nicholas D Socci
- Marie-Josée and Henry R. Kravis Center for Molecular Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Franck Rapaport
- Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Matthieu Najm
- Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Juan S Medina-Martinez
- Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Elli Papaemmanuil
- Center for Hematologic Malignancies, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Theodore C Tarver
- Division of Hematology/Oncology, University of California, San Francisco, California
| | | | - Mai H Le
- Plexxikon Inc, Berkeley, California
| | | | | | - Barry S Taylor
- Human Oncology & Pathogenesis Program and Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ross L Levine
- Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California.,Human Oncology & Pathogenesis Program and Leukemia Service, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Neil P Shah
- Division of Hematology/Oncology, University of California, San Francisco, California. .,Helen Diller Family Comprehensive Cancer Center, University of California, San Francisco, California
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15
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Genomic heterogeneity in core-binding factor acute myeloid leukemia and its clinical implication. Blood Adv 2021; 4:6342-6352. [PMID: 33351131 DOI: 10.1182/bloodadvances.2020002673] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 11/16/2020] [Indexed: 12/19/2022] Open
Abstract
Core-binding factor (CBF) acute myeloid leukemia (AML) encompasses AML with inv(16)(p13.1q22) and AML with t(8;21)(q22;q22.1). Despite sharing a common pathogenic mechanism involving rearrangements of the CBF transcriptional complex, there is growing evidence for considerable genotypic heterogeneity. We comprehensively characterized the mutational landscape of 350 adult CBF-AML [inv(16): n = 160, t(8;21): n = 190] performing targeted sequencing of 230 myeloid cancer-associated genes. Apart from common mutations in signaling genes, mainly NRAS, KIT, and FLT3, both CBF-AML entities demonstrated a remarkably diverse pattern with respect to the underlying cooperating molecular events, in particular in genes encoding for epigenetic modifiers and the cohesin complex. In addition, recurrent mutations in novel collaborating candidate genes such as SRCAP (5% overall) and DNM2 (6% of t(8;21) AML) were identified. Moreover, aberrations altering transcription and differentiation occurred at earlier leukemic stages and preceded mutations impairing proliferation. Lasso-penalized models revealed an inferior prognosis for t(8;21) AML, trisomy 8, as well as FLT3 and KIT exon 17 mutations, whereas NRAS and WT1 mutations conferred superior prognosis. Interestingly, clonal heterogeneity was associated with a favorable prognosis. When entering mutations by functional groups in the model, mutations in genes of the methylation group (ie, DNMT3A, TET2) had a strong negative prognostic impact.
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16
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Chen X, Wang X, Dou H, Yang Z, Bi J, Huang Y, Lu L, Yu J, Bao L. Cytogenetic and mutational analysis and outcome assessment of a cohort of 284 children with de novo acute myeloid leukemia reveal complex karyotype as an adverse risk factor for inferior survival. Mol Cytogenet 2021; 14:27. [PMID: 34011412 PMCID: PMC8136172 DOI: 10.1186/s13039-021-00547-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 04/08/2021] [Indexed: 12/12/2022] Open
Abstract
Background Acute myeloid leukemia (AML) is rare in children. Although complex karyotype (CK) defined as ≥ 3 cytogenetic abnormalities is an adverse risk factor in adult AML, its prognostic impact on childhood AML remains to be determined. Results We studied the prevalence, cytogenetic and mutational features, and outcome impact of CK in a cohort of 284 Chinese children with de novo AML. Thirty-four (12.0%) children met the criteria for CK-AML with atypical CK being more frequent than typical CK featured with -5/5q-, -7/7q-, and/or 17p aberration. Mutational prevalence was low and co-occurrence mutants were uncommon. Children with CK-AML showed shorter overall survival (OS) (5-year OS: 26.7 ± 10.6% vs. 37.5 ± 8.6%, p = 0.053) and event-free survival (EFS) (5-year EFS: 26.7 ± 10.6% vs. 38.8 ± 8.6%, p = 0.039) compared with those with intermediate-risk genetics. Typical CK tended to correlate with a decreased OS than atypical CK (5-year OS: 0 vs. 33 ± 12.7%.; p = 0.084), and CK with ≥ 5 cytogenetic aberrations was associated with an inferior survival compared with CK with ≤ 4 aberrations (5-year OS: 13.6 ± 11.7% vs. 50.0 ± 18.6%; p = 0.040; 5-year EFS: 13.6 ± 11.7% vs. 50.0 ± 18.6%; p = 0.048). Conclusion Our results demonstrate CK as an adverse risk factor for reduced survival in childhood AML. Our findings shed light on the cytogenetic and mutational profile of childhood CK-AML and would inform refinement of risk stratification in childhood AML to improve outcomes. Supplementary Information The online version contains supplementary material available at 10.1186/s13039-021-00547-0.
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Affiliation(s)
- Xi Chen
- Center for Clinical Molecular Medicine, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Xingjuan Wang
- Center for Reproductive Medicine, Baoji Maternal and Child Health Hospital, Shanxi, China
| | - Hu Dou
- Department of Clinical Laboratory, Key Laboratory of Pediatrics in Chongqing, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Zhenzhen Yang
- Department of Clinical Laboratory, Nanchong Central Hospital, Nanchong, Sichuan, China
| | - Junqin Bi
- Department of Laboratory Medicine, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yi Huang
- Chongqing Key Laboratory of Child Infection and Immunity, Ministry of Education Key Laboratory of Child Development and Disorders, China International Science and Technology Cooperation Base of Child Development and Critical Disorders, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Ling Lu
- Department of Rheumatology, Huashan Hospital, Fudan University, Shanghai, China
| | - Jie Yu
- Department of Hematology and Oncology, Children's Hospital of Chongqing Medical University, No. 136 Zhongshang 2nd Road, Chongqing, 400014, China.
| | - Liming Bao
- Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, 12705 E. Montview Boulevard, Suite 400, Aurora, CO, 80045, USA.
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17
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Feusier JE, Arunachalam S, Tashi T, Baker MJ, VanSant-Webb C, Ferdig A, Welm BE, Rodriguez-Flores JL, Ours C, Jorde LB, Prchal JT, Mason CC. Large-Scale Identification of Clonal Hematopoiesis and Mutations Recurrent in Blood Cancers. Blood Cancer Discov 2021; 2:226-237. [PMID: 34027416 DOI: 10.1158/2643-3230.bcd-20-0094] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Clonal hematopoiesis of indeterminate potential (CHIP) is characterized by detectable hematopoietic-associated gene mutations in a person without evidence of hematologic malignancy. We sought to identify additional cancer-presenting mutations useable for CHIP detection by performing a data mining analysis of 48 somatic mutation studies reporting mutations at diagnoses of 7,430 adult and pediatric patients with hematologic malignancies. Following extraction of 20,141 protein-altering mutations, we identified 434 significantly recurrent mutation hotspots, 364 of which occurred at loci confidently assessable for CHIP. We then performed an additional large-scale analysis of whole exome sequencing data from 4,538 persons belonging to three non-cancer cohorts for clonal mutations. We found the combined cohort prevalence of CHIP with mutations identical to those reported at blood cancer mutation hotspots to be 1.8%, and that some of these CHIP mutations occurred in children. Our findings may help to improve CHIP detection and pre-cancer surveillance for both children and adults.
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Affiliation(s)
- Julie E Feusier
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA.,Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Sasi Arunachalam
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA.,Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Department of Oncological Sciences, University of Utah, Salt Lake City, UT, USA
| | - Tsewang Tashi
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, UT, USA.,VA Medical Center, Salt Lake City, UT, USA
| | - Monika J Baker
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Chad VanSant-Webb
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Amber Ferdig
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Bryan E Welm
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Department of Surgery, University of Utah, Salt Lake City, UT, USA
| | | | - Christopher Ours
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
| | - Lynn B Jorde
- Department of Human Genetics, University of Utah, Salt Lake City, UT, USA
| | - Josef T Prchal
- Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.,Division of Hematology and Hematologic Malignancies, University of Utah, Salt Lake City, UT, USA.,VA Medical Center, Salt Lake City, UT, USA
| | - Clinton C Mason
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Utah, Salt Lake City, UT, USA
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18
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Cassinat B, Verger E, Maslah N, Gauthier N, Vainchenker W, Giraudier S, Kiladjian JJ. CCND2 mutations are infrequent events in BCR-ABL1 negative myeloproliferative neoplasm patients. Haematologica 2021; 106:863-864. [PMID: 32414847 PMCID: PMC7927990 DOI: 10.3324/haematol.2020.252643] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Indexed: 12/27/2022] Open
Affiliation(s)
- Bruno Cassinat
- AP-HP, Laboratoire de Biologie Cellulaire, Hôpital Saint-Louis, Paris,Université de Paris, U1131 INSERM, Paris,Laboratoire d’Excellence GR-Ex, Université de Paris, Paris
| | - Emmanuelle Verger
- AP-HP, Laboratoire de Biologie Cellulaire, Hôpital Saint-Louis, Paris,Université de Paris, U1131 INSERM, Paris
| | - Nabih Maslah
- AP-HP, Laboratoire de Biologie Cellulaire, Hôpital Saint-Louis, Paris,Université de Paris, U1131 INSERM, Paris
| | | | - William Vainchenker
- Laboratoire d’Excellence GR-Ex, Université de Paris, Paris,Université de Paris-Saclay, INSERM UMR1287, Institut Gustave Roussy, Villejuif, France
| | - Stéphane Giraudier
- AP-HP, Laboratoire de Biologie Cellulaire, Hôpital Saint-Louis, Paris,Université de Paris, U1131 INSERM, Paris,Laboratoire d’Excellence GR-Ex, Université de Paris, Paris
| | - Jean-Jacques Kiladjian
- Université de Paris, U1131 INSERM, Paris,Laboratoire d’Excellence GR-Ex, Université de Paris, Paris,Centre d’Investigations Cliniques, Hôpital Saint-Louis, Paris
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19
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Hadzipasic M, Karsten MB, Olson H, Rodan L, Lidov H, Prabhu SP, Wright K, Fehnel KP. Medulloblastoma in the setting of megalencephaly polymicrogyria polydactyly hydrocephalus. Am J Med Genet A 2021; 185:1614-1618. [PMID: 33634562 DOI: 10.1002/ajmg.a.62125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 01/19/2021] [Accepted: 01/23/2021] [Indexed: 01/07/2023]
Affiliation(s)
- Muhamed Hadzipasic
- Department of Neurosurgery, Massachusetts General Hospital, Harvard University, Boston, Massachusetts, USA
| | - Madeline B Karsten
- Department of Neurosurgery, Boston Children's Hospital, Harvard University, Boston, Massachusetts, USA
| | - Heather Olson
- Department of Neurology, Boston Children's Hospital, Harvard University, Boston, Massachusetts, USA
| | - Lance Rodan
- Department of Genetics, Boston Children's Hospital, Harvard University, Boston, Massachusetts, USA
| | - Hart Lidov
- Department of Pathology, Boston Children's Hospital, Harvard University, Boston, Massachusetts, USA
| | - Sanjay P Prabhu
- Department of Radiology, Boston Children's Hospital, Harvard University, Boston, Massachusetts, USA
| | - Karen Wright
- Neuro-oncology, Dana-Farber/Boston Children's Cancer and Blood Disorders Center, Harvard University, Boston, Massachusetts, USA
| | - Katie Pricola Fehnel
- Department of Neurosurgery, Boston Children's Hospital, Harvard University, Boston, Massachusetts, USA
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20
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Swart LE, Heidenreich O. The RUNX1/RUNX1T1 network: translating insights into therapeutic options. Exp Hematol 2021; 94:1-10. [PMID: 33217477 PMCID: PMC7854360 DOI: 10.1016/j.exphem.2020.11.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 11/07/2020] [Accepted: 11/10/2020] [Indexed: 12/16/2022]
Abstract
RUNX1/RUNX1T1 is the most common fusion gene found in acute myeloid leukemia. Seminal contributions by many different research groups have revealed a complex regulatory network promoting leukemic self-renewal and propagation. Perturbation of RUNX1/RUNX1T1 levels and its DNA binding affects chromatin accessibility and transcription factor occupation at multiple gene loci associated with changes in gene expression levels. Exploration of this transcriptional program by targeted RNAi screens uncovered a crucial role of RUNX1/RUNX1T1 in cell cycle progression by regulating CCND2. This dependency results in a high vulnerability toward inhibitors of CDK4 and CDK6 and suggests new avenues for therapeutic intervention against acute myeloid leukemia.
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MESH Headings
- Animals
- Cell Cycle
- Core Binding Factor Alpha 2 Subunit/genetics
- Core Binding Factor Alpha 2 Subunit/metabolism
- Gene Expression Regulation, Leukemic
- Gene Regulatory Networks
- Humans
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/pathology
- Leukemia, Myeloid, Acute/therapy
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
- Protein Interaction Maps
- RUNX1 Translocation Partner 1 Protein/genetics
- RUNX1 Translocation Partner 1 Protein/metabolism
- Transcriptional Activation
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Affiliation(s)
- Laura E Swart
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands
| | - Olaf Heidenreich
- Princess Maxima Center for Pediatric Oncology, Utrecht, The Netherlands.
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21
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Kellaway S, Chin PS, Barneh F, Bonifer C, Heidenreich O. t(8;21) Acute Myeloid Leukemia as a Paradigm for the Understanding of Leukemogenesis at the Level of Gene Regulation and Chromatin Programming. Cells 2020; 9:E2681. [PMID: 33322186 PMCID: PMC7763303 DOI: 10.3390/cells9122681] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 12/09/2020] [Indexed: 12/15/2022] Open
Abstract
Acute myeloid leukemia (AML) is a heterogenous disease with multiple sub-types which are defined by different somatic mutations that cause blood cell differentiation to go astray. Mutations occur in genes encoding members of the cellular machinery controlling transcription and chromatin structure, including transcription factors, chromatin modifiers, DNA-methyltransferases, but also signaling molecules that activate inducible transcription factors controlling gene expression and cell growth. Mutant cells in AML patients are unable to differentiate and adopt new identities that are shaped by the original driver mutation and by rewiring their gene regulatory networks into regulatory phenotypes with enhanced fitness. One of the best-studied AML-subtypes is the t(8;21) AML which carries a translocation fusing the DNA-binding domain of the hematopoietic master regulator RUNX1 to the ETO gene. The resulting oncoprotein, RUNX1/ETO has been studied for decades, both at the biochemical but also at the systems biology level. It functions as a dominant-negative version of RUNX1 and interferes with multiple cellular processes associated with myeloid differentiation, growth regulation and genome stability. In this review, we summarize our current knowledge of how this protein reprograms normal into malignant cells and how our current knowledge could be harnessed to treat the disease.
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Affiliation(s)
- Sophie Kellaway
- Institute of Cancer and Genomica Sciences, College of Medicine and Dentistry, University of Birmingham, Birmingham B152TT, UK; (S.K.); (P.S.C.)
| | - Paulynn S. Chin
- Institute of Cancer and Genomica Sciences, College of Medicine and Dentistry, University of Birmingham, Birmingham B152TT, UK; (S.K.); (P.S.C.)
| | - Farnaz Barneh
- Princess Máxima Centrum for Pediatric Oncology, Heidelberglaan 25, 3584CS Utrecht, The Netherlands;
| | - Constanze Bonifer
- Institute of Cancer and Genomica Sciences, College of Medicine and Dentistry, University of Birmingham, Birmingham B152TT, UK; (S.K.); (P.S.C.)
| | - Olaf Heidenreich
- Princess Máxima Centrum for Pediatric Oncology, Heidelberglaan 25, 3584CS Utrecht, The Netherlands;
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22
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RNA sequencing as an alternative tool for detecting measurable residual disease in core-binding factor acute myeloid leukemia. Sci Rep 2020; 10:20119. [PMID: 33208771 PMCID: PMC7674449 DOI: 10.1038/s41598-020-76933-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 09/07/2020] [Indexed: 01/28/2023] Open
Abstract
DNA sequencing-based measurable residual disease (MRD) detection has shown to be clinically relevant in AML. However, the same methodology cannot be applied to fusion gene-driven subtypes of AML such as core-binding factor AML (CBF-AML). Here in this study, we evaluated the effectiveness of using DNA and RNA sequencing in MRD detection and in tracking clonal dynamics in CBF-AML. Using RNA-seq, we were able to quantify expression levels of RUNX1-RUNX1T1 and CBFB-MYH11 at diagnosis and their levels of reduction during remission (P < 6.3e−05 and P < 2.2e−13). The level of reduction of RUNX1-RUNX1T1 as measured by RNA-seq and qPCR were highly correlated (R2 = 0.74, P < 5.4e−05). A decision tree analysis, based on 3-log reduction of RUNX1-RUNX1T1 and cKIT-D816mut at diagnosis, stratified RUNX1-RUNX1T1 AML patients into three subgroups. These three subgroups had 2-year overall survival rates at 87%, 74%, and 33% (P < 0.08) and 2-year relapse incidence rates at 13%, 42%, and 67% (P < 0.05). On the other hand, although low residual allelic burden was common, it was not associated with long-term outcome, indicating that mutation clearance alone cannot be interpreted as MRD-negative. Overall, our study demonstrates that the clinical utility of RNA sequencing as a potential tool for MRD monitoring in fusion gene-driven AML such as RUNX1-RUNX1T1 AML.
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23
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Nakatani K, Matsuo H, Harata Y, Higashitani M, Koyama A, Noura M, Nishinaka-Arai Y, Kamikubo Y, Adachi S. Inhibition of CDK4/6 and autophagy synergistically induces apoptosis in t(8;21) acute myeloid leukemia cells. Int J Hematol 2020; 113:243-253. [PMID: 33068248 DOI: 10.1007/s12185-020-03015-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 09/10/2020] [Accepted: 09/18/2020] [Indexed: 12/19/2022]
Abstract
The t(8;21) translocation is the most common cytogenetic abnormality in acute myeloid leukemia (AML). Although t(8;21) AML patients have a relatively favorable prognosis, relapse is a frequent occurrence, underscoring the need to develop novel therapeutic approaches. Here, we showed that t(8;21) AML is characterized by frequent mutation and overexpression of CCND2. Analysis of 19 AML cell lines showed that t(8;21) AML cells had lower IC50 values for the selective CDK4/6 inhibitors palbociclib and abemaciclib than non-t(8;21) AML cells. CDK4/6 inhibitors caused cell cycle arrest at G1 phase and impaired cell proliferation in t(8;21) AML cells. CDK4/6 inhibition decreased MAP-ERK and PI3K-AKT-mTOR signaling pathway activity, induced LC3B-I to LC3B-II conversion, and enhanced autophagosome formation, suggesting autophagy induction. Treatment of t(8;21) AML cells with the autophagy inhibitors chloroquine (CQ) or LY294002 in combination with the CDK4/6 inhibitor abemaciclib significantly increased the percentage of apoptotic (Annexin V positive) cells, whereas CQ or LY294002 single treatment had no significant effects. The effectiveness of co-inhibiting CDK4/6 and autophagy was confirmed in primary t(8;21) AML cells. The results suggest that the combination of CDK4/6 and autophagy inhibitors had a synergistic effect on inducing apoptosis, suggesting a novel therapeutic approach for the treatment of t(8;21) AML.
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Affiliation(s)
- Kana Nakatani
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Hidemasa Matsuo
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Yutarou Harata
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Moe Higashitani
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Asami Koyama
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Mina Noura
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Yoko Nishinaka-Arai
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan.,Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan
| | - Yasuhiko Kamikubo
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan
| | - Souichi Adachi
- Department of Human Health Sciences, Graduate School of Medicine, Kyoto University, 53 Kawahara-cho, Shogoin, Sakyoku, Kyoto, 606-8507, Japan.
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24
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Wang S, Yang L, Liu Y, Xu Y, Zhang D, Jiang Z, Wang C, Liu Y. A Novel Immune-Related Competing Endogenous RNA Network Predicts Prognosis of Acute Myeloid Leukemia. Front Oncol 2020; 10:1579. [PMID: 32850463 PMCID: PMC7432272 DOI: 10.3389/fonc.2020.01579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 07/21/2020] [Indexed: 12/11/2022] Open
Abstract
Background Acute myeloid leukemia (AML) is a genetically, biologically and clinically heterogeneous hematopoietic malignancy that is highly dependent on the bone marrow (BM) microenvironment. Infiltrated immune cells and stromal cells are an important part of the BM microenvironment and significantly affect the progression of AML. Recently, the competing endogenous RNA hypothesis has gained great interests in the study of molecular and biological mechanisms of tumor occurrence and progression. However, research on how competing endogenous RNA relates to leukemia tumor microenvironment remains uninvestigated. Methods In this study, mRNA, miRNA and lncRNA data and clinical information of the AML cohort were obtained from The Cancer Genome Atlas (TCGA) database, and the immune and stromal scores were calculated using the ESTIMATE algorithm. Results We found that immune scores were significantly correlated with cytogenetic risk and overall survival, and also identified microenvironment-related mRNAs, miRNAs, and lncRNAs based on the immune and stromal scores. Differentially expressed mRNAs and lncRNAs were applied to weighted correlation network analysis (WGCNA) to identify the modules most relevant to the immune microenvironment of AML. Using miRNA database to predict miRNA-targeted genes, we established the immune-related competing endogenous RNA network consisting of 33 lncRNAs, 21 miRNAs and 135 mRNAs. Prognostic analysis was performed on the genes in the immune-related competing endogenous RNA network to screen out 15 lncRNAs, 2 miRNAs and 31 mRNAs with prognostic values. Conclusion In summary, we identified a novel immune-related mRNA-miRNA-lncRNA competing endogenous RNA network associated with the prognosis of AML, which may contribute to better understanding of the development and progression of AML and to serve as novel therapeutic targets.
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Affiliation(s)
- Shujuan Wang
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lu Yang
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yajun Liu
- Department of Orthopaedics, Rhode Island Hospital, Warren Alpert Medical School, Brown University, Providence, RI, United States
| | - Yan Xu
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Danfeng Zhang
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhongxing Jiang
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chong Wang
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yanfang Liu
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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25
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Quan X, Deng J. Core binding factor acute myeloid leukemia: Advances in the heterogeneity of KIT, FLT3, and RAS mutations (Review). Mol Clin Oncol 2020; 13:95-100. [PMID: 32714530 DOI: 10.3892/mco.2020.2052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Accepted: 02/05/2020] [Indexed: 12/20/2022] Open
Abstract
Core binding factor (CBF) is a heterodimer protein complex involved in the transcriptional regulation of normal hematopoietic process. In addition, CBF molecular aberrations represent approximately 20% of all adult Acute Myeloid Leukemia (AML) patients. Treated with standard therapy, adult CBF AML has higher complete remission (CR) rate, longer CR duration, and better prognosis than that of AML patients with normal karyotype or other chromosomal aberrations. Although the prognosis of CBF AML is better than other subtypes of adult AML, it is still a group of heterogeneous diseases, and the prognosis is often different. Recurrence and relapse-related death are the main challenges to be faced following treatment. Mounting research shows the gene heterogeneity of CBF AML. Therefore, to achieve an improved clinical outcome, the differences in clinical and genotypic characteristics should be taken into account in the evaluation and management of such patients, so as to further improve the risk stratification of prognosis and develop targeted therapy. The present article is a comprehensive review of the differences in some common mutant genes between two subtypes of CBF AML.
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Affiliation(s)
- Xi Quan
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
| | - Jianchuan Deng
- Department of Hematology, The Second Affiliated Hospital, Chongqing Medical University, Chongqing 400010, P.R. China
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26
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Xu T, Ruan H, Gao S, Liu J, Liu Y, Song Z, Cao Q, Wang K, Bao L, Liu D, Tong J, Shi J, Liang H, Yang H, Chen K, Zhang X. ISG20 serves as a potential biomarker and drives tumor progression in clear cell renal cell carcinoma. Aging (Albany NY) 2020; 12:1808-1827. [PMID: 32003757 PMCID: PMC7053611 DOI: 10.18632/aging.102714] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/02/2020] [Indexed: 12/13/2022]
Abstract
Clear cell renal cell carcinoma (ccRCC) is one of the most common malignancies and lacks reliable biomarkers for diagnosis and prognosis, which results in high incidence and mortality rates of ccRCC. In this study, ISG20, HJURP, and FOXM1 were identified as hub genes via weighted gene co-expression network analysis (WGCNA) and Cox regression analysis. Samples validation showed that only ISG20 was up-regulated in ccRCC. Therefore, ISG20 was selected for further study. High ISG20 expression was associated with poor overall survival and disease-free survival. Furthermore, the expression of ISG20 could effectively differentiate ccRCC from normal tissues and was positively correlated to clinical stages. Functional experiments proved that knockdown of ISG20 expression could obviously inhibit cell growth, migration, and invasion in ccRCC cells. To find the potential mechanisms of ISG20, gene set enrichment analysis (GSEA) was performed and revealed that high expression of ISG20 was significantly involved in metastasis and cell cycle pathways. In addition, we found that ISG20 could regulate the expression of MMP9 and CCND1. In conclusion, these findings suggested that ISG20 promoted cell proliferation and metastasis via regulating MMP9/CCND1 expression and might serve as a potential biomarker and therapeutic target in ccRCC.
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Affiliation(s)
- Tianbo Xu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hailong Ruan
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Su Gao
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jingchong Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yuenan Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhengshuai Song
- Department of Urology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Qi Cao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Keshan Wang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Lin Bao
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Di Liu
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Junwei Tong
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jian Shi
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Huageng Liang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hongmei Yang
- Department of Pathogenic Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Ke Chen
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xiaoping Zhang
- Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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27
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Cyclin D degradation by E3 ligases in cancer progression and treatment. Semin Cancer Biol 2020; 67:159-170. [PMID: 32006569 DOI: 10.1016/j.semcancer.2020.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 12/15/2022]
Abstract
D cyclins include three isoforms: D1, D2, and D3. D cyclins heterodimerize with cyclin-dependent kinase 4/6 (CDK4/6) to form kinase complexes that can phosphorylate and inactivate Rb. Inactivation of Rb triggers the activation of E2F transcription factors, which in turn regulate the expression of genes whose products drive cell cycle progression. Because D-type cyclins function as mitogenic sensors that link growth factor signaling directly with G1 phase progression, it is not surprising that D cyclin accumulation is dysregulated in a variety of human tumors. Elevated expression of D cyclins results from gene amplification, increased gene transcription and protein translation, decreased microRNA levels, and inefficiency or loss of ubiquitylation-mediated protein degradation. This review focuses on the clinicopathological importance of D cyclins, how dysregulation of Ubiquitin-Proteasome System (UPS) contributes to the overexpression of D cyclins, and the therapeutic potential through targeting D cyclin-related machinery in human tumors.
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28
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Opatz S, Bamopoulos SA, Metzeler KH, Herold T, Ksienzyk B, Bräundl K, Tschuri S, Vosberg S, Konstandin NP, Wang C, Hartmann L, Graf A, Krebs S, Blum H, Schneider S, Thiede C, Middeke JM, Stölzel F, Röllig C, Schetelig J, Ehninger G, Krämer A, Braess J, Görlich D, Sauerland MC, Berdel WE, Wörmann BJ, Hiddemann W, Spiekermann K, Bohlander SK, Greif PA. The clinical mutatome of core binding factor leukemia. Leukemia 2020; 34:1553-1562. [PMID: 31896782 PMCID: PMC7266744 DOI: 10.1038/s41375-019-0697-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/28/2019] [Accepted: 12/12/2019] [Indexed: 12/17/2022]
Abstract
The fusion genes CBFB/MYH11 and RUNX1/RUNX1T1 block differentiation through disruption of the core binding factor (CBF) complex and are found in 10–15% of adult de novo acute myeloid leukemia (AML) cases. This AML subtype is associated with a favorable prognosis; however, nearly half of CBF-rearranged patients cannot be cured with chemotherapy. This divergent outcome might be due to additional mutations, whose spectrum and prognostic relevance remains hardly defined. Here, we identify nonsilent mutations, which may collaborate with CBF-rearrangements during leukemogenesis by targeted sequencing of 129 genes in 292 adult CBF leukemia patients, and thus provide a comprehensive overview of the mutational spectrum (‘mutatome’) in CBF leukemia. Thereby, we detected fundamental differences between CBFB/MYH11- and RUNX1/RUNX1T1-rearranged patients with ASXL2, JAK2, JAK3, RAD21, TET2, and ZBTB7A being strongly correlated with the latter subgroup. We found prognostic relevance of mutations in genes previously known to be AML-associated such as KIT, SMC1A, and DHX15 and identified novel, recurrent mutations in NFE2 (3%), MN1 (4%), HERC1 (3%), and ZFHX4 (5%). Furthermore, age >60 years, nonprimary AML and loss of the Y-chromosomes are important predictors of survival. These findings are important for refinement of treatment stratification and development of targeted therapy approaches in CBF leukemia.
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Affiliation(s)
- Sabrina Opatz
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefanos A Bamopoulos
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Klaus H Metzeler
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Tobias Herold
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Bianka Ksienzyk
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Kathrin Bräundl
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sebastian Tschuri
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sebastian Vosberg
- Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Nikola P Konstandin
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Christine Wang
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Luise Hartmann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Alexander Graf
- Laboratory for Functional Genome Analysis at the Gene Center, LMU Munich, Munich, Germany
| | - Stefan Krebs
- Laboratory for Functional Genome Analysis at the Gene Center, LMU Munich, Munich, Germany
| | - Helmut Blum
- Laboratory for Functional Genome Analysis at the Gene Center, LMU Munich, Munich, Germany
| | - Stephanie Schneider
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Institute of Human Genetics, University Hospital, LMU Munich, Munich, Germany
| | - Christian Thiede
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Internal Medicine 1, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Jan Moritz Middeke
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Internal Medicine 1, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Friedrich Stölzel
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Internal Medicine 1, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Christoph Röllig
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Internal Medicine 1, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Johannes Schetelig
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Internal Medicine 1, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Gerhard Ehninger
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Department of Internal Medicine 1, University Hospital Carl Gustav Carus, Dresden, Germany
| | - Alwin Krämer
- German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jan Braess
- Oncology and Hematology, St. John of God Hospital, Regensburg, Germany
| | - Dennis Görlich
- Institute of Biostatistics and Clinical Research, University of Münster, Münster, Germany
| | | | - Wolfgang E Berdel
- Department of Medicine A, Hematology, Oncology and Pneumology, University of Münster, Münster, Germany
| | - Bernhard J Wörmann
- Department of Hematology, Oncology and Tumor Immunology, Charité University Medicine, Campus Virchow, Berlin, Germany
| | - Wolfgang Hiddemann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Karsten Spiekermann
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK), Heidelberg, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Stefan K Bohlander
- Department of Molecular Medicine and Pathology, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Philipp A Greif
- Laboratory for Leukemia Diagnostics, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany. .,Experimental Leukemia & Lymphoma Research, Department of Medicine III, University Hospital, LMU Munich, Munich, Germany. .,German Cancer Consortium (DKTK), Heidelberg, Germany. .,German Cancer Research Center (DKFZ), Heidelberg, Germany.
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29
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Sampathi S, Acharya P, Zhao Y, Wang J, Stengel KR, Liu Q, Savona MR, Hiebert SW. The CDK7 inhibitor THZ1 alters RNA polymerase dynamics at the 5' and 3' ends of genes. Nucleic Acids Res 2019; 47:3921-3936. [PMID: 30805632 PMCID: PMC6486546 DOI: 10.1093/nar/gkz127] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 02/22/2019] [Indexed: 01/01/2023] Open
Abstract
The t(8;21) is one of the most frequent chromosomal translocations associated with acute myeloid leukemia (AML). We found that t(8;21) AML were extremely sensitive to THZ1, which triggered apoptosis after only 4 h. We used precision nuclear run-on transcription sequencing (PROseq) to define the global effects of THZ1 and other CDK inhibitors on RNA polymerase II dynamics. Inhibition of CDK7 using THZ1 caused wide-spread loss of promoter-proximal paused RNA polymerase. This loss of 5′ pausing was associated with accumulation of polymerases in the body of a large number of genes. However, there were modest effects on genes regulated by ‘super-enhancers’. At the 3′ ends of genes, treatment with THZ1 suppressed RNA polymerase ‘read through’ at the end of the last exon, which resembled a phenotype associated with a mutant RNA polymerase with slower elongation rates. Consistent with this hypothesis, polyA site-sequencing (PolyA-seq) did not detect differences in poly A sites after THZ1 treatment. PROseq analysis after short treatments with THZ1 suggested that these 3′ effects were due to altered CDK7 activity at the 5′ end of long genes, and were likely to be due to slower rates of elongation.
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Affiliation(s)
- Shilpa Sampathi
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Pankaj Acharya
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Yue Zhao
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Jing Wang
- Center for Quantitative Sciences, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.,Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Kristy R Stengel
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Qi Liu
- Center for Quantitative Sciences, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.,Department of Biomedical Informatics, Vanderbilt University School of Medicine, Nashville, TN 37232, USA
| | - Michael R Savona
- Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37027.,Department of Medicine, Vanderbilt University School of Medicine, Nashville, TN 37232
| | - Scott W Hiebert
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN 37232, USA.,Vanderbilt-Ingram Cancer Center, Vanderbilt University School of Medicine, Nashville, TN 37027
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30
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Recurrent CCND3 mutations in MLL-rearranged acute myeloid leukemia. Blood Adv 2019; 2:2879-2889. [PMID: 30381403 DOI: 10.1182/bloodadvances.2018019398] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 09/13/2018] [Indexed: 12/12/2022] Open
Abstract
In acute myeloid leukemia (AML), MLL (KMT2A) rearrangements are among the most frequent chromosomal abnormalities; however, knowledge of the genetic landscape of MLL-rearranged AML is limited. In this study, we performed whole-exome sequencing (n = 9) and targeted sequencing (n = 56) of samples from pediatric MLL-rearranged AML patients enrolled in the Japanese Pediatric Leukemia/Lymphoma Study Group AML-05 study. Additionally, we analyzed 105 pediatric t(8;21) AML samples and 30 adult MLL-rearranged AML samples. RNA-sequencing data from 31 patients published in a previous study were also reanalyzed. As a result, we identified 115 mutations in pediatric MLL-rearranged AML patients (2.1 mutations/patient), with mutations in signaling pathway genes being the most frequently detected (60.7%). Mutations in genes associated with epigenetic regulation (21.4%), transcription factors (16.1%), and the cohesin complex (8.9%) were also commonly detected. Novel CCND3 mutations were identified in 5 pediatric MLL-rearranged AML patients (8.9%) and 2 adult MLL-rearranged AML patients (3.3%). Recurrent mutations of CCND1 (n = 3, 2.9%) and CCND2 (n = 8, 7.6%) were found in pediatric t(8;21) AML patients, whereas no CCND3 mutations were found, suggesting that D-type cyclins exhibit a subtype-specific mutation pattern in AML. Treatment of MLL-rearranged AML cell lines with CDK4/6 inhibitors (abemaciclib and palbociclib) blocked G1 to S phase cell-cycle progression and impaired proliferation. Pediatric MLL-MLLT3-rearranged AML patients with coexisting mutations (n = 16) had significantly reduced relapse-free survival and overall survival compared with those without coexisting mutations (n = 9) (P = .048 and .046, respectively). These data provide insights into the genetics of MLL-rearranged AML and suggest therapeutic strategies.
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31
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GATA2 mutations and overexpression in pediatric acute myeloid leukemia. PEDIATRIC HEMATOLOGY ONCOLOGY JOURNAL 2019. [DOI: 10.1016/j.phoj.2019.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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32
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Selective inhibition of Aurora A and B kinases effectively induces cell cycle arrest in t(8;21) acute myeloid leukemia. Biomed Pharmacother 2019; 117:109113. [PMID: 31207577 DOI: 10.1016/j.biopha.2019.109113] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/28/2019] [Accepted: 06/10/2019] [Indexed: 11/22/2022] Open
Abstract
The fusion gene AML1-ETO initially dysregulates various cell cycle molecules in t(8;21) acute myeloid leukemia. Aurora kinases have shown great promise in treating tumors. However, the efficacy of Aurora kinase (AURK) A and B inhibition in t(8;21) AML remains unclear. We found that AURK-A inhibitor Alisertib and AURK-B inhibitor Barasertib strongly inhibited the growth and proliferation of t(8;21) AML cells. The quantity and size of cell colonies were markedly decreased after a 14-d drug exposure. The cell cycle distribution was blocked at the G2/M phase in both dose- and time-dependent manner. The expression of p53 family and cdc2-p34 significantly changed as well. Notably, we found that t(8;21) AML cells are more sensitive to Aurora B inhibition. In each set of experiments, Barasertib took less time or a lower concentration to achieve similar efficacy. Taken together, our data highlighted the potential role of Aurora kinases as promising cell cycle targets for the treatment of t(8;21) AML and hereby provided a theoretical basis to guide relevant clinical trials.
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33
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Wood DJ, Endicott JA. Structural insights into the functional diversity of the CDK-cyclin family. Open Biol 2019; 8:rsob.180112. [PMID: 30185601 PMCID: PMC6170502 DOI: 10.1098/rsob.180112] [Citation(s) in RCA: 141] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 08/10/2018] [Indexed: 12/17/2022] Open
Abstract
Since their characterization as conserved modules that regulate progression through the eukaryotic cell cycle, cyclin-dependent protein kinases (CDKs) in higher eukaryotic cells are now also emerging as significant regulators of transcription, metabolism and cell differentiation. The cyclins, though originally characterized as CDK partners, also have CDK-independent roles that include the regulation of DNA damage repair and transcriptional programmes that direct cell differentiation, apoptosis and metabolic flux. This review compares the structures of the members of the CDK and cyclin families determined by X-ray crystallography, and considers what mechanistic insights they provide to guide functional studies and distinguish CDK- and cyclin-specific activities. Aberrant CDK activity is a hallmark of a number of diseases, and structural studies can provide important insights to identify novel routes to therapy.
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Affiliation(s)
- Daniel J Wood
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Medical School, Newcastle University, Paul O'Gorman Building, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
| | - Jane A Endicott
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Medical School, Newcastle University, Paul O'Gorman Building, Framlington Place, Newcastle upon Tyne NE2 4HH, UK
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34
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Christen F, Hoyer K, Yoshida K, Hou HA, Waldhueter N, Heuser M, Hills RK, Chan W, Hablesreiter R, Blau O, Ochi Y, Klement P, Chou WC, Blau IW, Tang JL, Zemojtel T, Shiraishi Y, Shiozawa Y, Thol F, Ganser A, Löwenberg B, Linch DC, Bullinger L, Valk PJM, Tien HF, Gale RE, Ogawa S, Damm F. Genomic landscape and clonal evolution of acute myeloid leukemia with t(8;21): an international study on 331 patients. Blood 2019; 133:1140-1151. [PMID: 30610028 DOI: 10.1182/blood-2018-05-852822] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 12/31/2018] [Indexed: 01/08/2023] Open
Abstract
Acute myeloid leukemia with t(8;21)(q22;q22) is characterized by considerable clinical and biological heterogeneity leading to relapse in up to 40% of patients. We sequenced coding regions or hotspot areas of 66 recurrently mutated genes in a cohort of 331 t(8;21) patients. At least 1 mutation, in addition to t(8;21), was identified in 95%, with a mean of 2.2 driver mutations per patient. Recurrent mutations occurred in genes related to RAS/RTK signaling (63.4%), epigenetic regulators (45%), cohesin complex (13.6%), MYC signaling (10.3%), and the spliceosome (7.9%). Our study identified mutations in previously unappreciated genes: GIGYF2, DHX15, and G2E3 Based on high mutant levels, pairwise precedence, and stability at relapse, epigenetic regulator mutations were likely to occur before signaling mutations. In 34% of RAS/RTKmutated patients, we identified multiple mutations in the same pathway. Deep sequencing (∼42 000×) of 126 mutations in 62 complete remission samples from 56 patients identified 16 persisting mutations in 12 patients, of whom 5 lacked RUNX1-RUNX1T1 in quantitative polymerase chain reaction analysis. KIT high mutations defined by a mutant level ≥25% were associated with inferior relapse-free survival (hazard ratio, 1.96; 95% confidence interval, 1.22-3.15; P = .005). Together with age and white blood cell counts, JAK2, FLT3-internal tandem duplicationhigh, and KIT high mutations were identified as significant prognostic factors for overall survival in multivariate analysis. Whole-exome sequencing was performed on 19 paired diagnosis, remission, and relapse trios. Exome-wide analysis showed an average of 16 mutations with signs of substantial clonal evolution. Based on the resemblance of diagnosis and relapse pairs, genetically stable (n = 13) and unstable (n = 6) subgroups could be identified.
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Affiliation(s)
- Friederike Christen
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Kaja Hoyer
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Kenichi Yoshida
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Hsin-An Hou
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Nils Waldhueter
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Michael Heuser
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Robert K Hills
- Centre for Trials Research, Cardiff University, Cardiff, United Kingdom
| | - Willy Chan
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Raphael Hablesreiter
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Olga Blau
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Yotaro Ochi
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Piroska Klement
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Wen-Chien Chou
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Igor-Wolfgang Blau
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
| | - Jih-Luh Tang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Tomasz Zemojtel
- Berlin Institute of Health Core Genomics Facility, Charité, University Medical Center, Berlin, Germany
| | - Yuichi Shiraishi
- Laboratory of Sequence Analysis, Human Genome Center, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Yusuke Shiozawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Felicitas Thol
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology, and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
| | - Bob Löwenberg
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - David C Linch
- Department of Haematology, University College London Cancer Institute, London, United Kingdom; and
| | - Lars Bullinger
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
- German Cancer Consortium and German Cancer Research Center, Heidelberg, Germany
| | - Peter J M Valk
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Hwei-Fang Tien
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Rosemary E Gale
- Department of Haematology, University College London Cancer Institute, London, United Kingdom; and
| | - Seishi Ogawa
- Department of Pathology and Tumor Biology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Frederik Damm
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Department of Hematology, Oncology, and Tumor Immunology, Berlin Institute of Health, Berlin, Germany
- German Cancer Consortium and German Cancer Research Center, Heidelberg, Germany
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Yu G, Zhou H, Yao W, Meng L, Lang B. lncRNA TUG1 Promotes Cisplatin Resistance by Regulating CCND2 via Epigenetically Silencing miR-194-5p in Bladder Cancer. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 16:257-271. [PMID: 30925453 PMCID: PMC6439231 DOI: 10.1016/j.omtn.2019.02.017] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/14/2019] [Accepted: 02/18/2019] [Indexed: 11/17/2022]
Abstract
Taurine-upregulated gene 1 (TUG1) has been involved in tumorigenesis of several human cancers, but its precise biological role in bladder cancer remains largely elusive. In this study, we found that TUG1 was upregulated in bladder cancer and the expression of TUG1 was positively and negatively correlated with CCND2 and miR-194-5p, respectively. MiR-194-5p expression was frequently decreased through promoter hypermethylation, while it was epigenetically increased following cisplatin and 5-aza-2′-deoxycytidine (5-Aza-DC) treatment. Furthermore, knockdown of TUG1 attenuated the expression of epigenetic regulator Enhancer of zeste homolog 2 (EZH2), and it alleviated the promoter hypermethylation of miR-194-5p and induced its expression. Increased miR-194-5p expression or decreased TUG1 expression significantly sensitized bladder cancer cells to cisplatin, inhibited the proliferation, and induced apoptosis. Besides, CCND2 was a direct target of miR-194-5p, while miR-194-5p was regulated by TUG1. CCND2 could partially restore the tumor-suppressive effects on cell proliferation and cisplatin resistance following TUG1 silencing. Additionally, TUG1 expression was correlated with clinical stage, lymphatic metastasis, and patient prognosis. In conclusion, TUG1 promotes bladder cancer cell growth and chemoresistance by regulating CCND2 via EZH2-associated silencing of miR-194-5p. Our study may be conducive to elucidating the molecular mechanism of and providing novel therapeutic target and biomarker for bladder cancer.
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Affiliation(s)
- Gan Yu
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Hui Zhou
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Weimin Yao
- Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lirong Meng
- School of Health Sciences, Macao Polytechnic Institute, Macao, China
| | - Bin Lang
- School of Health Sciences, Macao Polytechnic Institute, Macao, China.
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36
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Castelli G, Pelosi E, Testa U. Emerging Therapies for Acute Myelogenus Leukemia Patients Targeting Apoptosis and Mitochondrial Metabolism. Cancers (Basel) 2019; 11:E260. [PMID: 30813354 PMCID: PMC6406361 DOI: 10.3390/cancers11020260] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 02/14/2019] [Indexed: 02/06/2023] Open
Abstract
Acute Myelogenous Leukemia (AML) is a malignant disease of the hematopoietic cells, characterized by impaired differentiation and uncontrolled clonal expansion of myeloid progenitors/precursors, resulting in bone marrow failure and impaired normal hematopoiesis. AML comprises a heterogeneous group of malignancies, characterized by a combination of different somatic genetic abnormalities, some of which act as events driving leukemic development. Studies carried out in the last years have shown that AML cells invariably have abnormalities in one or more apoptotic pathways and have identified some components of the apoptotic pathway that can be targeted by specific drugs. Clinical results deriving from studies using B-cell lymphoma 2 (BCL-2) inhibitors in combination with standard AML agents, such as azacytidine, decitabine, low-dose cytarabine, provided promising results and strongly support the use of these agents in the treatment of AML patients, particularly of elderly patients. TNF-related apoptosis-inducing ligand (TRAIL) and its receptors are frequently deregulated in AML patients and their targeting may represent a promising strategy for development of new treatments. Altered mitochondrial metabolism is a common feature of AML cells, as supported through the discovery of mutations in the isocitrate dehydrogenase gene and in mitochondrial electron transport chain and of numerous abnormalities of oxidative metabolism existing in AML subgroups. Overall, these observations strongly support the view that the targeting of mitochondrial apoptotic or metabolic machinery is an appealing new therapeutic perspective in AML.
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Affiliation(s)
- Germana Castelli
- Department of Oncology, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Elvira Pelosi
- Department of Oncology, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
| | - Ugo Testa
- Department of Oncology, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
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37
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Xue Y, Ge Y, Kang M, Wu C, Wang Y, Rong L, Fang Y. Selection of three miRNA signatures with prognostic value in non-M3 acute myeloid leukemia. BMC Cancer 2019; 19:109. [PMID: 30700251 PMCID: PMC6483142 DOI: 10.1186/s12885-019-5315-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 01/24/2019] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND MiRNAs that are potential biomarkers for predicting prognosis for acute myeloid leukemia (AML) have been identified. However, comprehensive analyses investigating the association between miRNA expression profiles and AML survival remain relatively deficient. METHOD In the present study, we performed multivariate Cox's analysis and principal component analysis (PCA) using data from The Cancer Genome Atlas (TCGA) to identify potential molecular signatures for predicting non-M3 AML prognosis. RESULT We found that patients who were still living were significantly younger at diagnosis than those who had died (P = 0.001). In addition, there was a marked difference in living status among different risk category groups (P = 0.022). A multivariate Cox model suggested that three miRNAs were potential biomarkers of non-M3 AML prognosis, including miR-181a-2, miR-25 and miR-362. Subsequently, PCA analyses were conducted to comprehensively represent the expression levels of these three miRNAs in each patient with a PCA value. According to the log-rank test, AML outcome for patients with lower PCA values was significantly different from those with higher PCA values (P < 0.001). Further bioinformatic analysis revealed the biological functions of the selected miRNAs. CONCLUSION We conducted a comprehensive analysis of TCGA non-M3 AML data, identifying three miRNAs that are significantly correlated with AML survival. PCA values for the identified miRNAs are valuable for predicting AML prognosis.
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Affiliation(s)
- Yao Xue
- Department of Hematology and Oncology, Children's Hospital of Nanjing Medical University, Nanjing, China.,Key Laboratory of Hematology, Nanjing Medical University, Nanjing, China
| | - Yuqiu Ge
- Department of Public Health and Preventive Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Meiyun Kang
- Department of Hematology and Oncology, Children's Hospital of Nanjing Medical University, Nanjing, China.,Key Laboratory of Hematology, Nanjing Medical University, Nanjing, China
| | - Cong Wu
- Engineering Research Center of Wideband Wireless Communication Technology, Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing, China
| | - Yaping Wang
- Department of Hematology and Oncology, Children's Hospital of Nanjing Medical University, Nanjing, China.,Key Laboratory of Hematology, Nanjing Medical University, Nanjing, China
| | - Liucheng Rong
- Department of Hematology and Oncology, Children's Hospital of Nanjing Medical University, Nanjing, China.,Key Laboratory of Hematology, Nanjing Medical University, Nanjing, China
| | - Yongjun Fang
- Department of Hematology and Oncology, Children's Hospital of Nanjing Medical University, Nanjing, China. .,Key Laboratory of Hematology, Nanjing Medical University, Nanjing, China.
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38
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Hung CS, Wang SC, Yen YT, Lee TH, Wen WC, Lin RK. Hypermethylation of CCND2 in Lung and Breast Cancer Is a Potential Biomarker and Drug Target. Int J Mol Sci 2018; 19:ijms19103096. [PMID: 30308939 PMCID: PMC6213171 DOI: 10.3390/ijms19103096] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 09/30/2018] [Accepted: 10/01/2018] [Indexed: 02/06/2023] Open
Abstract
Lung and breast cancer are the leading causes of mortality in women worldwide. The discovery of molecular alterations that underlie these two cancers and corresponding drugs has contributed to precision medicine. We found that CCND2 is a common target in lung and breast cancer. Hypermethylation of the CCND2 gene was reported previously; however, no comprehensive study has investigated the clinical significance of CCND2 alterations and its applications and drug discovery. Genome-wide methylation and quantitative methylation-specific real-time polymerase chain reaction (PCR) showed CCND2 promoter hypermethylation in Taiwanese breast cancer patients. As compared with paired normal tissues and healthy individuals, CCND2 promoter hypermethylation was detected in 40.9% of breast tumors and 44.4% of plasma circulating cell-free DNA of patients. The western cohort of The Cancer Genome Atlas also demonstrated CCND2 promoter hypermethylation in female lung cancer, lung adenocarcinoma, and breast cancer patients and that CCND2 promoter hypermethylation is an independent poor prognostic factor. The cell model assay indicated that CCND2 expression inhibited cancer cell growth and migration ability. The demethylating agent antroquinonol D upregulated CCND2 expression, caused cell cycle arrest, and inhibited cancer cell growth and migration ability. In conclusion, hypermethylation of CCND2 is a potential diagnostic, prognostic marker and drug target, and it is induced by antroquinonol D.
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Affiliation(s)
- Chin-Sheng Hung
- Division of Breast Surgery, Department of Surgery, Taipei Medical University Hospital, Taipei 110, Taiwan.
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan.
- Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City 235, Taiwan.
| | - Sheng-Chao Wang
- Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan.
| | - Yi-Ting Yen
- Professional Master Program in Pharmaceutics and Biotechnology, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan.
| | - Tzong-Huei Lee
- Institute of Fisheries Science, National Taiwan University, Taipei 110, Taiwan.
| | - Wu-Che Wen
- Golden Biotechnology Corporation, 15F., No. 27-6, Sec. 2, Zhongzheng E. Rd, Taipei, TW 110, Taiwan.
| | - Ruo-Kai Lin
- Ph.D Program in Biotechnology Research and Development, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan.
- Graduate Institute of Pharmacognosy, Ph.D. Program for the Clinical Drug Discovery from Botanical Herbs; Master Program for Clinical Pharmacogenomics and Pharmacoproteomics, Taipei Medical University, Taipei 110, Taiwan.
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39
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Martinez-Soria N, McKenzie L, Draper J, Ptasinska A, Issa H, Potluri S, Blair HJ, Pickin A, Isa A, Chin PS, Tirtakusuma R, Coleman D, Nakjang S, Assi S, Forster V, Reza M, Law E, Berry P, Mueller D, Osborne C, Elder A, Bomken SN, Pal D, Allan JM, Veal GJ, Cockerill PN, Wichmann C, Vormoor J, Lacaud G, Bonifer C, Heidenreich O. The Oncogenic Transcription Factor RUNX1/ETO Corrupts Cell Cycle Regulation to Drive Leukemic Transformation. Cancer Cell 2018; 34:626-642.e8. [PMID: 30300583 PMCID: PMC6179967 DOI: 10.1016/j.ccell.2018.08.015] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2017] [Revised: 04/20/2018] [Accepted: 08/29/2018] [Indexed: 12/11/2022]
Abstract
Oncogenic transcription factors such as the leukemic fusion protein RUNX1/ETO, which drives t(8;21) acute myeloid leukemia (AML), constitute cancer-specific but highly challenging therapeutic targets. We used epigenomic profiling data for an RNAi screen to interrogate the transcriptional network maintaining t(8;21) AML. This strategy identified Cyclin D2 (CCND2) as a crucial transmitter of RUNX1/ETO-driven leukemic propagation. RUNX1/ETO cooperates with AP-1 to drive CCND2 expression. Knockdown or pharmacological inhibition of CCND2 by an approved drug significantly impairs leukemic expansion of patient-derived AML cells and engraftment in immunodeficient murine hosts. Our data demonstrate that RUNX1/ETO maintains leukemia by promoting cell cycle progression and identifies G1 CCND-CDK complexes as promising therapeutic targets for treatment of RUNX1/ETO-driven AML.
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Affiliation(s)
- Natalia Martinez-Soria
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Lynsey McKenzie
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Julia Draper
- Cancer Research UK Manchester Institute, Manchester M20 4GJ, UK
| | - Anetta Ptasinska
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Hasan Issa
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Sandeep Potluri
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Helen J Blair
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Anna Pickin
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Asmida Isa
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Paulynn Suyin Chin
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Ricky Tirtakusuma
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Daniel Coleman
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Sirintra Nakjang
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Salam Assi
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Victoria Forster
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Mojgan Reza
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Ed Law
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Philip Berry
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Dorothee Mueller
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Cameron Osborne
- Department of Medical & Molecular Genetics, King's College London, London SE1 9RT, UK
| | - Alex Elder
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Simon N Bomken
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - Deepali Pal
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK
| | - James M Allan
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Gareth J Veal
- Newcastle Cancer Centre, Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Peter N Cockerill
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK
| | - Christian Wichmann
- Department of Transfusion Medicine, Cell Therapeutics and Hemostaseology, Ludwig-Maximilian University Hospital, Munich 80539, Germany
| | - Josef Vormoor
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK; Princess Maxima Center for Pediatric Oncology, Utrecht 3584CS, the Netherlands
| | - Georges Lacaud
- Cancer Research UK Manchester Institute, Manchester M20 4GJ, UK
| | - Constanze Bonifer
- Institute for Cancer and Genomic Sciences, College of Medical and Dental Sciences, University of Birmingham, Birmingham B15 2TT, UK.
| | - Olaf Heidenreich
- Wolfson Childhood Cancer Research Centre, Northern Institute for Cancer Research, Newcastle University, Brewery Lane, Newcastle upon Tyne NE1 7RU, UK; Princess Maxima Center for Pediatric Oncology, Utrecht 3584CS, the Netherlands.
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Kuykendall A, Duployez N, Boissel N, Lancet JE, Welch JS. Acute Myeloid Leukemia: The Good, the Bad, and the Ugly. Am Soc Clin Oncol Educ Book 2018; 38:555-573. [PMID: 30231330 DOI: 10.1200/edbk_199519] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Acute myeloid leukemia (AML) was initially subdivided according to morphology (the French-American-British system), which proved helpful in pathologic categorization. Subsequently, clinical and genomic factors were found to correlate with response to chemotherapy and with overall survival. These included a history of antecedent hematologic disease, a history of chemotherapy or radiation therapy, the presence of various recurrent cytogenetic abnormalities, and, more recently, the presence of specific point mutations. This article reviews the biology and responses of one AML subgroup with consistent response and good outcomes following chemotherapy (core-binding factor leukemia), and two subgroups with persistently bad, and even ugly, outcomes (secondary AML and TP53-mutated AML).
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MESH Headings
- Alleles
- Biomarkers, Tumor
- Chromosome Aberrations
- Combined Modality Therapy
- Core Binding Factors/genetics
- Core Binding Factors/metabolism
- Gene Frequency
- Humans
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/etiology
- Leukemia, Myeloid, Acute/mortality
- Mutation
- Neoplasm, Residual/diagnosis
- Neoplasms, Second Primary/diagnosis
- Neoplasms, Second Primary/epidemiology
- Neoplasms, Second Primary/etiology
- Neoplasms, Second Primary/therapy
- Signal Transduction
- Tumor Suppressor Protein p53/genetics
- Tumor Suppressor Protein p53/metabolism
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Affiliation(s)
- Andrew Kuykendall
- From the Moffitt Cancer Center, Tampa, FL; CHU Lille, INSERM, Laboratory of Hematology, University of Lille, Lille, France; Hematology Department, Saint-Louis Hospital, Paris Diderot University, Paris, France; Washington University School of Medicine, St. Louis, MO
| | - Nicolas Duployez
- From the Moffitt Cancer Center, Tampa, FL; CHU Lille, INSERM, Laboratory of Hematology, University of Lille, Lille, France; Hematology Department, Saint-Louis Hospital, Paris Diderot University, Paris, France; Washington University School of Medicine, St. Louis, MO
| | - Nicolas Boissel
- From the Moffitt Cancer Center, Tampa, FL; CHU Lille, INSERM, Laboratory of Hematology, University of Lille, Lille, France; Hematology Department, Saint-Louis Hospital, Paris Diderot University, Paris, France; Washington University School of Medicine, St. Louis, MO
| | - Jeffrey E Lancet
- From the Moffitt Cancer Center, Tampa, FL; CHU Lille, INSERM, Laboratory of Hematology, University of Lille, Lille, France; Hematology Department, Saint-Louis Hospital, Paris Diderot University, Paris, France; Washington University School of Medicine, St. Louis, MO
| | - John S Welch
- From the Moffitt Cancer Center, Tampa, FL; CHU Lille, INSERM, Laboratory of Hematology, University of Lille, Lille, France; Hematology Department, Saint-Louis Hospital, Paris Diderot University, Paris, France; Washington University School of Medicine, St. Louis, MO
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41
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Clonal interference of signaling mutations worsens prognosis in core-binding factor acute myeloid leukemia. Blood 2018; 132:187-196. [PMID: 29692343 DOI: 10.1182/blood-2018-03-837781] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 04/17/2018] [Indexed: 11/20/2022] Open
Abstract
Mutations in receptor tyrosine kinase/RAS signaling pathway genes are frequent in core-binding factor (CBF) acute myeloid leukemias (AMLs), but their prognostic relevance is debated. A subset of CBF AML patients harbors several signaling gene mutations. Genotyping of colonies and of relapse samples indicates that these arise in independent clones, thus defining a process of clonal interference (or parallel evolution). Clonal interference is pervasive in cancers, but the mechanisms underlying this process remain unclear, and its prognostic impact remains unknown. We analyzed a cohort of 445 adult and pediatric patients with CBF AML treated with intensive chemotherapy and with deep sequencing of 6 signaling genes (KIT, NRAS, KRAS, FLT3, JAK2, CBL). A total of 152 (34%), 167 (38%), and 126 (28%) patients harbored no, a single, and multiple signaling clones (clonal interference), respectively. Clonal interference of signaling mutations was associated with older age (P = .004) and inv(16) subtype (P = .025) but not with white blood cell count or mutations in chromatin or cohesin genes. The median allele frequency of signaling mutations was 31% in patients with a single clone or clonal interference (P = .14). The repertoire of KIT, FLT3, and NRAS/KRAS variants differed between groups. Clonal interference did not affect complete remission rate or minimal residual disease after 1-2 courses, but it did convey inferior event-free survival (P < 10-4), whereas the presence of a single signaling clone did not (P = .44). This inferior outcome was independent of clinical parameters and of the presence of specific signaling clones. Our results suggest that specific clonal architectures can herald distinct prognoses in AML.
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SNP-array lesions in core binding factor acute myeloid leukemia. Oncotarget 2018; 9:6478-6489. [PMID: 29464086 PMCID: PMC5814226 DOI: 10.18632/oncotarget.24031] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 01/03/2018] [Indexed: 01/09/2023] Open
Abstract
Acute myeloid leukemia (AML) with t(8;21) and inv(16), together referred as core binding factor (CBF)-AML, are recognized as unique entities. Both rearrangements share a common pathophysiology, the disruption of the CBF, and a relatively good prognosis. Experiments have demonstrated that CBF rearrangements were insufficient to induce leukemia, implying the existence of cooperating events. To explore these aberrations, we performed single nucleotide polymorphism (SNP)-array in a well-annotated cohort of 198 patients with CBF-AML. Excluding breakpoint-associated lesions, the most frequent events included loss of a sex chromosome (53%), deletions at 9q21 (12%) and 7q36 (9%) in patients with t(8;21) compared with trisomy 22 (13%), trisomy 8 (10%) and 7q36 deletions (12%) in patients with inv(16). SNP-array revealed novel recurrent genetic alterations likely to be involved in CBF-AML leukemogenesis. ZBTB7A mutations (20% of t(8;21)-AML) were shown to be a target of copy-neutral losses of heterozygosity (CN-LOH) at chromosome 19p. FOXP1 focal deletions were identified in 5% of inv(16)-AML while sequence analysis revealed that 2% carried FOXP1 truncating mutations. Finally, CCDC26 disruption was found in both subtypes (4.5% of the whole cohort) and possibly highlighted a new lesion associated with aberrant tyrosine kinase signaling in this particular subtype of leukemia.
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The mutational oncoprint of recurrent cytogenetic abnormalities in adult patients with de novo acute myeloid leukemia. Leukemia 2017; 31:2211-2218. [PMID: 28321123 PMCID: PMC5628133 DOI: 10.1038/leu.2017.86] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 01/17/2017] [Accepted: 02/16/2017] [Indexed: 12/18/2022]
Abstract
Recurrent chromosomal abnormalities and gene mutations detected at the time of diagnosis of acute myeloid leukemia (AML) are associated with particular disease features, treatment response and survival of AML patients, and are used to denote specific disease entities in the World Health Organization classification of myeloid neoplasms and acute leukemia. However, large studies that integrate cytogenetic and comprehensive mutational information are scarce. We created a comprehensive oncoprint of mutations associated with recurrent cytogenetic findings by combining the information on mutational patterns of 80 cancer- and leukemia-associated genes with cytogenetic findings in 1603 adult patients with de novo AML. We show unique differences in the mutational profiles among major cytogenetic subsets, identify novel associations between recurrent cytogenetic abnormalities and both specific gene mutations and gene functional groups, and reveal differences in cytogenetic and mutational features between patients younger than 60 years and those aged 60 years or older. The identified associations between cytogenetic and molecular genetic data may help guide mutation testing in AML, and result in more focused application of targeted therapy in patients with de novo AML.
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