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The Research Advances of Aptamers in Hematologic Malignancies. Cancers (Basel) 2023; 15:cancers15010300. [PMID: 36612296 PMCID: PMC9818631 DOI: 10.3390/cancers15010300] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/03/2023] Open
Abstract
Currently, research for hematological malignancies is very intensive, with many breakthroughs. Among them, aptamer-based targeted therapies could be counted. Aptamer is a targeting tool with many unique advantages (easy synthesis, low toxicity, easy modification, low immunogenicity, nano size, long stability, etc.), therefore many experts screened corresponding aptamers in various hematological malignancies for diagnosis and treatment. In this review, we try to summarize and provide the recent progress of aptamer research in the diagnosis and treatment of hematologic malignancies. Until now, 29 aptamer studies were reported in hematologic malignancies, of which 12 aptamers were tested in vivo and the remaining 17 aptamers were only tested in vitro. In this case, 11 aptamers were combined with chemotherapeutic drugs for the treatment of hematologic malignancies, 4 aptamers were used in combination with nanomaterials for the diagnosis and treatment of hematologic malignancies, and some studies used aptamers for the targeted transportation of siRNA and miRNA for targeted therapeutic effects. Their research provides multiple approaches to achieve more targeted goals. These findings show promising and encouraging future for both hematological malignancies basic and clinical trials research.
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Oral Realgar-Indigo Naturalis Formula Treatment for Acute Promyelocytic Leukemia in Children: A Randomized, Control Clinical Trial. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:8314176. [PMID: 35836830 PMCID: PMC9276483 DOI: 10.1155/2022/8314176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 06/20/2022] [Indexed: 11/17/2022]
Abstract
Objective To analyze the efficacy, safety, and economy of RIF compared with intravenous arsenic trioxide (ATO) for the induction and consolidation therapy of pediatric APL. Materials and Methods In this randomized control clinical trial (NCT02200978), children with newly diagnosed APL from June 2013 to December 2017 were randomly divided into RIF and ATO groups. The groups were treated with RIF or ATO in combination with all-trans retinoic acid (ARTA) and conventional chemotherapeutic drugs during induction and consolidation therapy. Results Ninteen patients were enrolled, including eight in the RIF group and 11 in the ATO group. After induction therapy, the bone marrow morphologic complete remission (CR) rate, the median time to CR, and molecular remission (promyelocytic leukemia protein (PML)/retinoic acid receptor α (RARα) conversion) rates showed no significant differences between patients in the RIF versus ATO groups (100% vs. 100%, p=1.000; 22 vs. 24 days, p=0.395; 28.5% vs. 54.5%, p=0.367, resp.). After consolidation therapy, the molecular remission rate was 100% in both groups. At the end of more than two years of follow-up, the disease-free survival (DFS) rate was 100% in both groups. Conclusion Oral RIF can achieve similar efficacy to intravenous ATO for APL in children with good safety, less toxicity, fewer side effects, and fewer inpatient days. Therefore, oral RIF can be used as an alternative to intravenous ATO for the treatment of APL in children.
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Zheng H, Jiang H, Hu S, Liao N, Shen D, Tian X, Hao G, Jin R, Li J, Fang Y, Ju X, Liu A, Wang N, Zhai X, Zhu J, Hu Q, Li L, Liu W, Sun L, Wang L, Dai Y, Feng X, Li F, Liang H, Luo X, Yan M, Yin Q, Chen Y, Han Y, Qu L, Tao Y, Gao H, He Z, Lin L, Luo J, Pan K, Zhang J, Zhang R, Zhou M, Zhang Y, Wang L, Zhang R, Xiao P, Ling Y, Peng X, Peng Y, Wang T. Arsenic Combined With All-Trans Retinoic Acid for Pediatric Acute Promyelocytic Leukemia: Report From the CCLG-APL2016 Protocol Study. J Clin Oncol 2021; 39:3161-3170. [PMID: 34077242 PMCID: PMC8478377 DOI: 10.1200/jco.20.03096] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 03/13/2021] [Accepted: 04/07/2021] [Indexed: 02/05/2023] Open
Abstract
PURPOSE Arsenic combined with all-trans retinoic acid (ATRA) is the standard of care for adult acute promyelocytic leukemia (APL). However, the safety and effectiveness of this treatment in pediatric patients with APL have not been reported on the basis of larger sample sizes. METHODS We conducted a multicenter trial at 38 hospitals in China. Patients with newly diagnosed APL were stratified into two risk groups according to baseline WBC count and FLT3-ITD mutation. ATRA plus arsenic trioxide or oral arsenic without chemotherapy were administered to the standard-risk group, whereas ATRA, arsenic trioxide, or oral arsenic plus reduced-dose anthracycline were administered to the high-risk group. Primary end points were event-free survival and overall survival at 2 years. RESULTS We enrolled 193 patients with APL. After a median follow-up of 28.9 months, the 2-year overall survival rate was 99% (95% CI, 97 to 100) in the standard-risk group and 95% (95% CI, 90 to 100) in the high-risk group (P = .088). The 2-year event-free survival was 97% (95% CI, 93 to 100) in the standard-risk group and 90% (95% CI, 83 to 96) in the high-risk group (P = .252). The plasma levels of arsenic were significantly elevated after treatment, with a stable effective level ranging from 42.9 to 63.2 ng/mL during treatment. In addition, plasma, urine, hair, and nail arsenic levels rapidly decreased to normal 6 months after the end of treatment. CONCLUSION Arsenic combined with ATRA is effective and safe in pediatric patients with APL, although long-term follow-up is still needed.
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Affiliation(s)
- Huyong Zheng
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing, China
- National Key Discipline of Pediatrics (Capital Medical University), Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Hui Jiang
- Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Shaoyan Hu
- Children's Hospital of Soochow University, Suzhou, China
| | - Ning Liao
- The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Diying Shen
- The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, Hangzhou, China
| | - Xin Tian
- Kunming Children's Hospital, Kunming, China
| | - Guoping Hao
- Children's Hospital of Shanxi, Shanxi, China
| | - Runming Jin
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | | | - Yongjun Fang
- Children's Hospital of Nanjing Medical University, Nanjing, China
| | - Xiuli Ju
- Qilu Hospital of Shandong University, Jinan, China
| | | | - Ningling Wang
- The Second Hospital of Anhui Medical University, Hefei, China
| | - Xiaowen Zhai
- Children's Hospital of Fudan University, Shanghai, China
| | - Jiashi Zhu
- Shanghai Children's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Qun Hu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Limin Li
- The First Affiliated Hospital, Harbin Medical University, Harbin, China
| | - Wei Liu
- Zhengzhou Children's Hospital, Zhengzhou, China
| | - Lirong Sun
- The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Li Wang
- Hebei Children's Hospital, Hebei, China
| | | | - Xiaoqin Feng
- Nanfang Hospital, South Medical University, Guangzhou, China
| | - Fu Li
- Qilu Children's Hospital of Shandong University, Jinan, China
| | - Hui Liang
- Qingdao Women and Children's Hospital, Qingdao, China
| | - Xinhui Luo
- Children's Hospital of Xinjiang Uygur Autonomous Region, Ürümqi, China
| | - Mei Yan
- The First Affiliated Hospital of Xinjiang Medical University, Ürümqi, China
| | - Qingning Yin
- Women Children Hospital of Qing Hai, Xining, China
| | - Yan Chen
- Affiliated Hospital of Zunyi Medical University/Guizhou Provincial Children's Hospital, Zunyi, China
| | - Yueqin Han
- Liaocheng Children's Hospital, Liaocheng, China
| | - Lijun Qu
- Anhui Provincial Children's Hospital, Hefei, China
| | - Yanling Tao
- The Affiliated Hospital of Jining Medical University, Jining, China
| | - Hui Gao
- Dalian Children's Hospital, Dalian, China
| | - Zhixu He
- The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Limin Lin
- The Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Jixia Luo
- Children's Hospital of Kaifeng City, Kaifeng City, China
| | - Kaili Pan
- Northwest Women's and Children's Hospital, Xi'an, China
| | | | - Rong Zhang
- Sichuan Provincial People's Hospital, Chengdu, China
| | - Min Zhou
- Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Yuanyuan Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing, China
- National Key Discipline of Pediatrics (Capital Medical University), Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Linya Wang
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing, China
- National Key Discipline of Pediatrics (Capital Medical University), Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Ruidong Zhang
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing, China
- National Key Discipline of Pediatrics (Capital Medical University), Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Peifang Xiao
- Children's Hospital of Soochow University, Suzhou, China
| | - Yayun Ling
- The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Xiaoxia Peng
- Center for Clinical Epidemiology and Evidence-Based Medicine, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Yaguang Peng
- Center for Clinical Epidemiology and Evidence-Based Medicine, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Tianyou Wang
- Beijing Key Laboratory of Pediatric Hematology Oncology, Beijing, China
- National Key Discipline of Pediatrics (Capital Medical University), Beijing, China
- Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing, China
- Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
- Tianyou Wang, MD, Hematology Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, 56 Nan Lishi Road, Beijing 100045 P.R. China; e-mail:
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Quessada J, Cuccuini W, Saultier P, Loosveld M, Harrison CJ, Lafage-Pochitaloff M. Cytogenetics of Pediatric Acute Myeloid Leukemia: A Review of the Current Knowledge. Genes (Basel) 2021; 12:genes12060924. [PMID: 34204358 PMCID: PMC8233729 DOI: 10.3390/genes12060924] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/11/2021] [Accepted: 06/14/2021] [Indexed: 01/04/2023] Open
Abstract
Pediatric acute myeloid leukemia is a rare and heterogeneous disease in relation to morphology, immunophenotyping, germline and somatic cytogenetic and genetic abnormalities. Over recent decades, outcomes have greatly improved, although survival rates remain around 70% and the relapse rate is high, at around 30%. Cytogenetics is an important factor for diagnosis and indication of prognosis. The main cytogenetic abnormalities are referenced in the current WHO classification of acute myeloid leukemia, where there is an indication for risk-adapted therapy. The aim of this article is to provide an updated review of cytogenetics in pediatric AML, describing well-known WHO entities, as well as new subgroups and germline mutations with therapeutic implications. We describe the main chromosomal abnormalities, their frequency according to age and AML subtypes, and their prognostic relevance within current therapeutic protocols. We focus on de novo AML and on cytogenetic diagnosis, including the practical difficulties encountered, based on the most recent hematological and cytogenetic recommendations.
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Affiliation(s)
- Julie Quessada
- Hematological Cytogenetics Laboratory, Timone Children’s Hospital, Assistance Publique-Hôpitaux de Marseille (APHM), Faculté de Médecine, Aix Marseille University, 13005 Marseille, France;
- Aix Marseille University, CNRS, INSERM, CIML, 13009 Marseille, France;
| | - Wendy Cuccuini
- Hematological Cytogenetics Laboratory, Saint-Louis Hospital, Assistance Publique des Hôpitaux de Paris (APHP), 75010 Paris, France;
- Groupe Francophone de Cytogénétique Hématologique (GFCH), 1 Avenue Claude Vellefaux, 75475 Paris, France
| | - Paul Saultier
- APHM, La Timone Children’s Hospital Department of Pediatric Hematology and Oncology, 13005 Marseille, France;
- Faculté de Médecine, Aix Marseille University, INSERM, INRAe, C2VN, 13005 Marseille, France
| | - Marie Loosveld
- Aix Marseille University, CNRS, INSERM, CIML, 13009 Marseille, France;
- Hematology Laboratory, Timone Hospital, Assistance Publique-Hôpitaux de Marseille (APHM), 13005 Marseille, France
| | - Christine J. Harrison
- Leukaemia Research Cytogenetics Group Translational and Clinical Research Institute, Newcastle University Centre for Cancer Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK;
| | - Marina Lafage-Pochitaloff
- Hematological Cytogenetics Laboratory, Timone Children’s Hospital, Assistance Publique-Hôpitaux de Marseille (APHM), Faculté de Médecine, Aix Marseille University, 13005 Marseille, France;
- Groupe Francophone de Cytogénétique Hématologique (GFCH), 1 Avenue Claude Vellefaux, 75475 Paris, France
- Correspondence: ; Tel.: +33-4-91-38-76-41
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Andrade FG, Feliciano SVM, Sardou-Cezar I, Brisson GD, Dos Santos-Bueno FV, Vianna DT, Marques LVC, Terra-Granado E, Zalcberg I, Santos MDO, Costa JT, Noronha EP, Thuler LCS, Wiemels JL, Pombo-de-Oliveira MS. Pediatric Acute Promyelocytic Leukemia: Epidemiology, Molecular Features, and Importance of GST-Theta 1 in Chemotherapy Response and Outcome. Front Oncol 2021; 11:642744. [PMID: 33816294 PMCID: PMC8017304 DOI: 10.3389/fonc.2021.642744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/08/2021] [Indexed: 11/23/2022] Open
Abstract
Previous studies have suggested a variation in the incidence of acute promyelocytic leukemia (APL) among the geographic regions with relatively higher percentages in the Latin American population. We aimed to explore the population burden of pediatric APL, gathering information from the population-based cancer registry (PBCR) and the diagnosis of APL obtained through incident cases from a hospital-based cohort. The homozygous deletion in glutathione S-transferases (GSTs) leads to a loss of enzyme detoxification activity, possibly affecting the treatment response. Mutations in the RAS pathway genes are also considered to be a key component of the disease both in the pathogenesis and in the outcomes. We have assessed mutations in a RAS–MAP kinase pathway (FLT3, PTPN11, and K-/NRAS) and GST variant predisposition risk in the outcome. Out of the 805 children and adolescents with acute myeloid leukemia (AML) who are registered in the PBCR, 35 (4.3%) were APL cases. The age-adjusted incidence rate (AAIR) was 0.03 per 100,000 person-years. One-hundred and sixty-three patients with APL were studied out of 931 AML cases (17.5%) from a hospital-based cohort. Mutations in FLT3, KRAS, and NRAS accounted for 52.1% of the cases. Patients with APL presented a 5-year probability of the overall survival (OS) of 67.3 ± 5.8%. A GST-theta 1 (GSTT1) null genotype conferred adverse prognosis, with an estimated hazard ratio of 2.8, 95% confidence interval (CI) 1.2–6.9. We speculate that the GSTT1 polymorphism is associated with therapeutics and would allow better OS of patients with APL with a GSTT1 null genotype.
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Affiliation(s)
- Francianne G Andrade
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Suellen V M Feliciano
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Ingrid Sardou-Cezar
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Gisele D Brisson
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Filipe V Dos Santos-Bueno
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Danielle T Vianna
- Laboratory of Molecular Biology, Bone Marrow Transplantation Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Luísa V C Marques
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Eugênia Terra-Granado
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Ilana Zalcberg
- Laboratory of Molecular Biology, Bone Marrow Transplantation Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Marceli de O Santos
- Surveillance and Prevention, Instituto Nacional de Cancer, Rio de Janeiro, Brazil
| | - Juliana T Costa
- Department of Pediatric Hematology-Oncology, Hospital Martagão Gesteira, Salvador, Brazil
| | - Elda P Noronha
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Luiz C S Thuler
- Clinical Research Department, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Joseph L Wiemels
- Center for Genetic Epidemiology, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Maria S Pombo-de-Oliveira
- Pediatric Hematology-Oncology Program, Research Center, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
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Early Mortality in Children and Adolescents with Acute Promyelocytic Leukemia: Experience of the Boldrini Children's Center. J Pediatr Hematol Oncol 2020; 42:e641-e646. [PMID: 31613846 DOI: 10.1097/mph.0000000000001601] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Acute promyelocytic leukemia (APL) is currently considered a highly curable disease. However, an early death (ED) remains one of the main causes of APL treatment failure. PATIENTS AND METHODS In this retrospective study, we aimed to analyze the clinical characteristics of 91 children and adolescents with APL, who were consecutively registered at the (name of institution removed) Children's Center from January 1, 1998 to December 31, 2017. Data were assessed for age, sex, ethnicity, body mass index percentile, initial white blood cell count, peripheral blood blast count, and platelet count, hemoglobin value, partial thromboplastin time, prothrombin time, fibrinogen level, serum creatinine level, APL morphology subtype (classic vs. hypogranular variant M3v), and FLT3 gene mutations. RESULTS ED occurred in 12 of 91 (13.1%) patients and was mainly related to cerebral thromboembolism. Overall 66% of deaths occurred in the second week after diagnosis. ED was associated with white blood cell ≥10×10 cells/L (odds ratio of 8.44; 95% confidence interval [CI]=1.48-48.26; P=0.0016), initial promyelocytes ≥20×10/L (odds ratio of 9.29; 95% CI=2.45-35.8; P=0.001), morphologic subtype M3v (odds ratio of 3.63; 95% CI=1.04-12.64; P=0.043), and creatinine serum levels >0.7 mg/dL (odds ratio of 6.78; 95% CI=1.83-25.13; P=0.004). In multivariate analyses, ED was associated with initial peripheral promyelocytes ≥20×10 blasts/L and creatinine serum levels >0.7 mg/dL. CONCLUSIONS EDs were mainly caused by thrombohemorrhagic events and occurred within the second week after diagnosis. High peripheral promyelocytes and creatinine levels were predictors of ED in APL.
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Juárez-Avendaño G, Luna-Silva NC, Chargoy-Vivaldo E, Juárez-Martínez LA, Martínez-Rangel MN, Zárate-Ortiz N, Martínez-Valencia E, López-Martínez B, Pelayo R, Balandrán JC. Poor Prognosis Biomolecular Factors Are Highly Frequent in Childhood Acute Leukemias From Oaxaca, Mexico. Technol Cancer Res Treat 2020; 19:1533033820928436. [PMID: 32608319 PMCID: PMC7340349 DOI: 10.1177/1533033820928436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 04/15/2020] [Accepted: 04/30/2020] [Indexed: 01/17/2023] Open
Abstract
OBJECTIVE To investigate the cellular and molecular epidemiology of acute leukemias in vulnerable populations of children and adolescents in Oaxaca de Juarez, Mexico. MATERIAL AND METHODS Descriptive, cross-sectional and retrospective study, conducted from 2014 to 2018 in which profiles of molecular and immunophenotypic aberrations were investigated in children and adolescents diagnosed with acute leukemia, by evaluating 28 molecular abnormalities by HemaVision-Q28 multiplex RT-PCR kit and standardized EuroFlow Immunophenotyping of bone marrow cells. RESULTS We included 218 patients, with 82.5% younger than 14 years and 17.5% adolescents. The median age was 9 years and a main peak of incidence was recorded at age of 4 to 5 years. B-cell acute lymphoblastic leukemia was diagnosed in 70.64% of all cases, acute myeloid leukemia was in 22.48%, T-cell acute lymphoblastic leukemia in 6.42%, and mixed lineage acute leukemia in 0.46% of cases. Overall, chromosomal translocations were positive in 29.82% of cases. While 65.31% of patients with acute myeloid leukemia reported aberrancies, only in 18.83% of B-cell acute lymphoblastic leukemia cases genetic abnormalities were obvious. Surprisingly, most prevalent translocations in B-cell acute lymphoblastic leukemia were t(9;22) in 20.7%, followed by t(4;11) in 17.2% and t(6;11) in 13.8%, whereas patients with acute myeloid leukemia showed t(15;17) in 40.6% and t(8;21) in 21.9%. In contrast, an homogeneous expression of t(3;21) and t(6;11) was recorded for T-cell acute lymphoblastic leukemia and mixed lineage acute leukemia cases, respectively. Except for t(1;19), expressed only by pre-B cells, there was no association of any of the studied translocations with differentiation stages of the B-leukemic developmental pathway. CONCLUSION Our findings identify near 50% of patients with acute lymphoblastic leukemia at debut with high-risk translocations and poor prognosis in B-cell acute lymphoblastic leukemia as well as an unexpected increase of acute myeloid leukemia cases in young children, suggesting a molecular shift that support a higher incidence of poor prognosis cases in Oaxaca.
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Affiliation(s)
- Gerardo Juárez-Avendaño
- Laboratorio Juárez, Medicina de Laboratorio Clínico de Alta Especialidad, Biología Molecular e Investigación Clínica, Oaxaca de Juárez, Oaxaca, México
| | - Nuria Citlalli Luna-Silva
- Servicio de Hematología, Hospital de la Niñez Oaxaqueña “Doctor Guillermo Zárate Mijangos”, Secretaría de Salud, Oaxaca de Juárez, Oaxaca, México
| | - Euler Chargoy-Vivaldo
- Servicio de Hematología, Hospital Regional Presidente Juárez ISSSTE, Oaxaca de Juárez, Oaxaca, México
| | - Laura Alicia Juárez-Martínez
- Laboratorio Juárez, Medicina de Laboratorio Clínico de Alta Especialidad, Biología Molecular e Investigación Clínica, Oaxaca de Juárez, Oaxaca, México
- Residente de Anatomía Patológica, Hospital General de México, México City, México
| | - Mayra Noemí Martínez-Rangel
- Laboratorio Juárez, Medicina de Laboratorio Clínico de Alta Especialidad, Biología Molecular e Investigación Clínica, Oaxaca de Juárez, Oaxaca, México
| | - Noemí Zárate-Ortiz
- Laboratorio Juárez, Medicina de Laboratorio Clínico de Alta Especialidad, Biología Molecular e Investigación Clínica, Oaxaca de Juárez, Oaxaca, México
| | - Edith Martínez-Valencia
- Laboratorio Juárez, Medicina de Laboratorio Clínico de Alta Especialidad, Biología Molecular e Investigación Clínica, Oaxaca de Juárez, Oaxaca, México
| | | | - Rosana Pelayo
- Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social Delegación Puebla, Metepec-Atlixco, Puebla, México
| | - Juan Carlos Balandrán
- Laboratorio Juárez, Medicina de Laboratorio Clínico de Alta Especialidad, Biología Molecular e Investigación Clínica, Oaxaca de Juárez, Oaxaca, México
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Czogała M, Pawińska-Wa Sikowska K, Ksia Żek T, Sikorska-Fic B, Matysiak M, Rodziewicz-Konarska A, Chybicka A, Skalska-Sadowska J, Wachowiak J, Muszyńska-Rosłan K, Krawczuk-Rybak M, Grabowski D, Kowalczyk J, Zielezińska K, Urasiński T, Tomaszewska R, Szczepański T, Karpińska-Derda I, Woszczyk M, Pohorecka J, Karolczyk G, Młynarski W, Mycko K, Badowska W, Skoczeń S, Balwierz W. Treatment Outcome and the Genetic Characteristics of Acute Promyelocytic Leukemia in Children in Poland From 2005 to 2018. Front Pediatr 2020; 8:86. [PMID: 32266181 PMCID: PMC7100382 DOI: 10.3389/fped.2020.00086] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/20/2020] [Indexed: 11/24/2022] Open
Abstract
Background: The aim of the study was to analyze the treatment outcome and genetic characteristics of acute promyelocytic leukemia (APL) in children in Poland from 2005 to 2018. Methods: All 41 patients diagnosed with APL in Poland during the analysis period were eligible for the study. In period I (2005-2015), 33 patients were treated with chemotherapy and all-trans retinoic acid (ATRA), and in period II (2015-2018), 3 patients (high risk) received induction chemotherapy with ATRA and arsenic trioxide (ATO), and 5 patients (standard risk) received ATRA and ATO without chemotherapy. Results: Probability of 5-years overall survival (OS), event-free survival (EFS), and relapse-free survival (RFS) was 0.819 ± 0.069, 0.831 ± 0.063, and 0.961 ± 0.037, respectively, in the whole cohort. Four (11%) early deaths were observed. One patient died of severe infection in the course of disease progression. Relapse occurred in one patient, who died finally because of disease progression. All events occurred in the patients from period I. Variant APL was identified in one patient (successfully treated with chemotherapy with ATRA) and complex translocation in one patient (the only patient with relapse). Additional chromosomal aberrations were found in 26% of patients and FLT3-ITD mutation was detected in 44% of patients; none of those changes influenced clinical outcome. Conclusion: Treatment outcome in the analyzed group is similar to the results reported by other study groups. The main cause of death was coagulation disorders in the early stage of disease. Early, accurate diagnosis followed by specific treatment enables the reduction in the number of early deaths.
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Affiliation(s)
- Małgorzata Czogała
- Department of Pediatric Oncology and Hematology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland.,Department of Pediatric Oncology and Hematology, University Children Hospital, Krakow, Poland
| | - Katarzyna Pawińska-Wa Sikowska
- Department of Pediatric Oncology and Hematology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland.,Department of Pediatric Oncology and Hematology, University Children Hospital, Krakow, Poland
| | - Teofila Ksia Żek
- Department of Pediatric Oncology and Hematology, University Children Hospital, Krakow, Poland.,Department of Medical Genetics, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Barbara Sikorska-Fic
- Department of Pediatrics, Hematology and Oncology, Medical University of Warsaw, Warsaw, Poland
| | - Michał Matysiak
- Department of Pediatrics, Hematology and Oncology, Medical University of Warsaw, Warsaw, Poland
| | - Anna Rodziewicz-Konarska
- Department of Bone Marrow Transplantation, Pediatric Oncology and Hematology, Medical University of Wroclaw, Wroclaw, Poland
| | - Alicja Chybicka
- Department of Bone Marrow Transplantation, Pediatric Oncology and Hematology, Medical University of Wroclaw, Wroclaw, Poland
| | - Jolanta Skalska-Sadowska
- Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Poznan, Poland
| | - Jacek Wachowiak
- Department of Pediatric Oncology, Hematology and Transplantology, Poznan University of Medical Sciences, Poznan, Poland
| | | | - Maryna Krawczuk-Rybak
- Department of Pediatric Oncology and Hematology, Medical University of Bialystok, Bialystok, Poland
| | - Dominik Grabowski
- Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin, Lublin, Poland
| | - Jerzy Kowalczyk
- Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin, Lublin, Poland
| | - Karolina Zielezińska
- Department of Pediatrics, Hematology and Oncology, Pomeranian Medical University, Szczecin, Poland
| | - Tomasz Urasiński
- Department of Pediatrics, Hematology and Oncology, Pomeranian Medical University, Szczecin, Poland
| | - Renata Tomaszewska
- Department of Pediatrics Hematology and Oncology, Medical University of Silesia, Zabrze, Poland
| | - Tomasz Szczepański
- Department of Pediatrics Hematology and Oncology, Medical University of Silesia, Zabrze, Poland
| | | | - Mariola Woszczyk
- Department of Pediatrics, Hematology and Oncology, City Hospital, Chorzów, Poland
| | - Joanna Pohorecka
- Paediatric Department of Hematology and Oncology, Regional Polyclinic Hospital in Kielce, Kielce, Poland
| | - Grażyna Karolczyk
- Paediatric Department of Hematology and Oncology, Regional Polyclinic Hospital in Kielce, Kielce, Poland
| | - Wojciech Młynarski
- Department of Pediatrics, Oncology, Hematology and Diabetology, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Mycko
- Department of Pediatrics and Hematology and Oncology, Province Children's Hospital, Olsztyn, Poland
| | - Wanda Badowska
- Department of Pediatrics and Hematology and Oncology, Province Children's Hospital, Olsztyn, Poland
| | - Szymon Skoczeń
- Department of Pediatric Oncology and Hematology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland.,Department of Pediatric Oncology and Hematology, University Children Hospital, Krakow, Poland
| | - Walentyna Balwierz
- Department of Pediatric Oncology and Hematology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland.,Department of Pediatric Oncology and Hematology, University Children Hospital, Krakow, Poland
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9
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Zebardast S, Sahmani M, Mohammadi S, Foroughi F, Dehghani Fard A, Mohammadi Z, Khojastepour S, Azad M. The Gene Expression Profile and DNA Methylation Pattern of CDH1 and DNMT1 Genes in Acute Promyelocytic Leukemia (APL). Rep Biochem Mol Biol 2020; 8:454-457. [PMID: 32582805 PMCID: PMC7275828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 01/21/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND DNA methylation is an epigenetic modification that has the ability to alter gene expression and function. These epigenetic changes have been associated with the development of cancer. Previous research has found that DNA methylation patterns can predict disease prognosis for patients with Acute Promyelocytic Leukemia (APL). The role of DNMT1 and CDH1 in regulating the extension of cells are studied in this study. METHODS DNA was extracted from peripheral blood samples of APL patients and treated with bisulfite. DNMT1 and CDH1 gene promoter methylation was subsequently analyzed using methylation-specific PCR (MSP). Real-time PCR was used to measure the expression level of DNMT1 and CDH1 genes. RESULTS Partial methylation of the CDH1 gene promoter was detected in 20% of APL patients and an unmethylated status was detected in 80% of patient samples. Additionally, an unmethylated status in the DNMT1 gene promoter was detected in 100% of APL patient samples. CONCLUSION Our study found the CDH1 gene promoter to be unmethylated in almost all APL patients, while the DNMT1 promoter was unmethylated in all APL patients. Furthermore, we observed an increase in both CDH1 and DNMT1 gene expression in APL patients compared to healthy controls. These findings suggest that DNMT1 may not have a specific role in inhibiting CDH1 gene expression in APL. Applying higher resolution techniques would help to better uncover the DNA methylation patterns in patients with APL. Further research is required to determine the role of DNA methylation and CDH1 and DNMT1 gene expression in APL.
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Affiliation(s)
- Sanaz Zebardast
- Cellular and Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, Iran.
| | - Mehdi Sahmani
- Department of Biochemistry, Faculty of Allied Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
| | - Saeed Mohammadi
- Hematology-Oncology and stem cell transplantation research center, Tehran university of medical sciences, Tehran, Iran.
| | - Farshad Foroughi
- Department of Immunology, Faculty of Allied Medicine, Qazvin university of Medical Sciences, Qazvin, Iran.
| | | | - Zahra Mohammadi
- Cellular and Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, Iran.
| | - Sahar Khojastepour
- Cellular and Molecular Research Center, Qazvin University of Medical Sciences, Qazvin, Iran.
| | - Mehdi Azad
- Department of Medical laboratory sciences, Faculty of Allied Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
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10
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Pathological and therapeutic aspects of matrix metalloproteinases: implications in childhood leukemia. Cancer Metastasis Rev 2019; 38:829-837. [DOI: 10.1007/s10555-019-09828-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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11
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Lin G, Wu Y, Cai F, Li Z, Su S, Wang J, Cao J, Ma L. Matrine Promotes Human Myeloid Leukemia Cells Apoptosis Through Warburg Effect Mediated by Hexokinase 2. Front Pharmacol 2019; 10:1069. [PMID: 31607919 PMCID: PMC6771294 DOI: 10.3389/fphar.2019.01069] [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: 03/26/2019] [Accepted: 08/22/2019] [Indexed: 12/23/2022] Open
Abstract
Matrine, an alkaloid compound isolated from the medicinal plant Sophora flavescens, inhibits many types of cancer proliferation. However, the precise mechanism of the matrine antihuman chronic myeloid leukemia remains unclear. In this study, we showed that matrine significantly inhibited the cell proliferation and induced apoptosis by regulating Warburg effect through controlling hexokinases 2 (HK2) expression in myeloid leukemia cells. Interestingly, matrine inhibited the expression of HK2 mediated by reduction in c-Myc binding to HK2 gene intron and led to downregulation of HK2, which upregulated proapoptotic protein Bad and then induced apoptosis. We further demonstrated that matrine could synergize with lonidamine, an inhibitor of HK2, for the treatment of myeloid leukemia, both in vitro and in vivo. Taken together, our findings reveal that matrine could promote human myeloid leukemia cells apoptosis via regulating Warburg effect by controlling HK2.
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Affiliation(s)
- Guibin Lin
- Laboratory Center, The Third People's Hospital of Huizhou, Affiliated Hospital of Guangzhou Medical University, Huizhou, China
| | - Yangzhe Wu
- The First Affiliated Hospital, Biomedical Translational Research Institute and School of Pharmacy, Jinan University, Guangzhou, China
| | - Fengtao Cai
- Laboratory Center, The Third People's Hospital of Huizhou, Affiliated Hospital of Guangzhou Medical University, Huizhou, China
| | - Zhen Li
- The First Affiliated Hospital, Biomedical Translational Research Institute and School of Pharmacy, Jinan University, Guangzhou, China
| | - Shixin Su
- The First Affiliated Hospital, Biomedical Translational Research Institute and School of Pharmacy, Jinan University, Guangzhou, China
| | - Jian Wang
- Laboratory Center, The Third People's Hospital of Huizhou, Affiliated Hospital of Guangzhou Medical University, Huizhou, China
| | - Jialin Cao
- Laboratory Center, The Third People's Hospital of Huizhou, Affiliated Hospital of Guangzhou Medical University, Huizhou, China
| | - Lingdi Ma
- Laboratory Center, The Third People's Hospital of Huizhou, Affiliated Hospital of Guangzhou Medical University, Huizhou, China
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12
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Lins MM, Mello MJG, Ribeiro RC, De Camargo B, de Fátima Pessoa Militão de Albuquerque M, Thuler LCS. Survival and risk factors for mortality in pediatric patients with acute myeloid leukemia in a single reference center in low-middle-income country. Ann Hematol 2019; 98:1403-1411. [PMID: 30915498 DOI: 10.1007/s00277-019-03661-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/06/2019] [Indexed: 01/13/2023]
Abstract
Despite advances in therapy and care for children with acute myeloid leukemia (AML), survival rates for children in low- and middle-income countries (LMICs) remain poor. We studied risk factors for mortality and survival in children with AML in a LMIC to develop strategies to improve survival for AML children in these countries. This retrospective cohort (2000-2014) analyzed newly diagnosed AML patients (age < 19 years) at a reference center in Brazil. Demographic and clinical variables were reviewed by AML subtype: acute promyelocytic leukemia (APL), AML with Down syndrome (AML-DS), and other AML subtypes. Cumulative hazard risk for early death (ED) until 6 weeks of treatment and risk factors for mortality were determined by the multivariate Cox hazard models. Survival was assessed for each AML subtypes. A total of 220 patients were diagnosed: APL 50 (22.7%), AML-DS 16 (7.3%), and other AML subtypes 154 (70.0%). The cumulative hazard function values for ED for all patients with AML were 12.5% (95% CI 8.5-18.4%); for each AML patients subtypes: APL, 21.7% (95% CI 11.7-40.5%); AML-DS, 6.2% (95% CI 0.9-44.4%); and other AML subtypes, 10.2% (95% CI 6.2-17.0%). White blood cell count (cutoff 10 × 109/L for APL and 100 × 109/L for other AML subtypes) and Afro-descendance were significant risk factors for mortality in APL and other AML subtypes, respectively. Overall survival for patients with APL, AML-DS, and other AML subtypes was 66.8%, 62.5%, and 38.0%, respectively. APL patients had the highest incidence of ED and those with other subtypes had increased relapse risk. We also observed high rates of death in complete remission mainly due to infection. Better risk classification and identification of risk factors for infection may improve the survival of these patients.
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Affiliation(s)
- Mecneide Mendes Lins
- Pediatric Oncology Unit, Instituto de Medicina Integral Prof. Fernando Figueira, Recife, PE, Brazil
| | - Maria Julia Gonçalves Mello
- Pediatric Research Center, Instituto de Medicina Integral Prof. Fernando Figueira, Rua dos Coelhos, 300 Boa Vista, Recife, PE, 50070-550, Brazil.
| | - Raul C Ribeiro
- Department of Oncology and Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, USA.,Department of Pediatrics, University of Tennessee Health Science Center, Memphis, TN, USA
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13
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Nunes ADL, Paes CDA, Murao M, Viana MB, De Oliveira BM. Cytogenetic abnormalities, WHO classification, and evolution of children and adolescents with acute myeloid leukemia. Hematol Transfus Cell Ther 2019; 41:236-243. [PMID: 31085153 PMCID: PMC6732403 DOI: 10.1016/j.htct.2018.09.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 08/25/2018] [Accepted: 09/17/2018] [Indexed: 12/30/2022] Open
Abstract
OBJECTIVES To describe cytogenetic and molecular abnormalities observed in children and adolescents with acute myeloid leukemia (AML), classify AML according to the World Health Organization (WHO) classifications from 2008 and 2016, and evaluate the prognosis according to clinical characteristics and cytogenetic abnormalities. METHODS A retrospective longitudinal study was performed on a population of 98 patients with AML, aged up to 16 years, seen in a single hospital from 2004 to 2015. RESULTS Among the 80 patients for whom it was possible to analyze the karyotype, 78.7% had chromosomal changes, the most frequent being t(15;17)(q22;q21). Of the 86 patients for whom we had cytogenetic or molecular data, making it possible to classify their AML according to the WHO classification, 52.3% belonged to the group with recurrent genetic abnormalities, 22% to the "AML not otherwise specified" group, 18.6% to the group with myelodysplasia-related cytogenetic changes, and 7% to the group with Down syndrome-related leukemia. Five-year overall survival (OS) for the whole group was 49.7%±5.2%. In the univariate and multivariate analyses, patients with myelodysplasia-related cytogenetic changes (OS 28.1%±12.2%) and those with "AML not otherwise specified" (OS 36.1%±11.2%) had an unfavorable prognosis when compared to patients with AML with recurrent genetic abnormalities (OS 71%±5.8%) and patients with Down syndrome-related AML (OS 83%±15.2%, p=0.011). CONCLUSIONS The results corroborate the importance of cytogenetic abnormalities as a prognostic factor and indicate the need for cooperative and prospective studies to evaluate the applicability of the WHO classification in the pediatric population.
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Affiliation(s)
| | | | - Mitiko Murao
- Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, MG, Brazil
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14
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Acute Promyelocytic Leukemia in Children: A Single Centre Experience from Turkey. Mediterr J Hematol Infect Dis 2018; 10:e2018045. [PMID: 30002801 PMCID: PMC6039079 DOI: 10.4084/mjhid.2018.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 06/21/2018] [Indexed: 11/08/2022] Open
Abstract
Background and objectives Acute promyelocytic leukemia (APL), is a distinct subtype of acute myeloid leukemia (AML) characterized by a tendency to hemorrhage and excellent response to all-trans retinoic acid (ATRA). In this retrospective study, we aimed to determine the incidence, clinical symptoms, toxicities, and outcome of children with APL in our center. Methods We retrospectively reviewed the medical records of children (age < 18 years) diagnosed with APL in our pediatric hematology department between January 2006-December 2016. Results Pediatric APL represents 20.5% of AML cases in this cohort. Most of the cases presented as classical M3, albeit hypogranular variant was described in 12% of the cohort. Patients with hypogranular variant APL were differed from classical APL by co-expression of CD2 and CD34. About ¾ of APL patients had hemorrhagic findings at admission or the induction treatment. Severe bleeding manifested as intracranial hemorrhage was present in three patients and intracranial arterial thrombosis was present in one. Six patients showed side effects of ATRA such as pseudotumor cerebri, differentiation syndrome resulting in dilated cardiomyopathy, and pulmonary infiltrates. Five-year overall survival (OS) and early death rate were found to be 82.5% and 12% respectively. Conclusions A high frequency (20.5%) of APL was noted among children with AML in this single-center study. The overall mortality rate was 17.5%. Since the induction death rate was 12% and life-threatening bleeding was the primary problem, awareness and urgent treatment are critical factors to reduce early losses.
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15
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El-Hajj Ghaoui R, St Heaps L, Hung D, Nagabushan S, Harris C, Mirochnik O, Sharma P, Kellie SJ, Wright DC. A Paediatric Acute Promyelocytic Leukaemia Patient Harbouring a Cryptic PML-RARA Insertion due to a Complex Structural Chromosome 17 Rearrangement. Cytogenet Genome Res 2018; 153:181-189. [PMID: 29550828 DOI: 10.1159/000487000] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2017] [Indexed: 11/19/2022] Open
Abstract
Acute promyelocytic leukaemia with PML-RARA fusion is usually associated with the t(15;17)(q24.1;q21.1) translocation but may also arise from complex or cryptic rearrangements. The fusion usually resides on chromosome 15 but occasionally on others. We describe a cryptic PML-RARA fusion within a novel chromosome 17 rearrangement. We performed interphase fluorescence in situ hybridisation (FISH) using a dual-fusion PML-RARA probe, followed by reverse transcriptase-polymerase chain reaction (RT-PCR) for PML-RARA, karyotyping, and metaphase FISH using RARA break-apart, locus-specific, and subtelomere probes for chromosome 17. An 850K SNP microarray was also employed. Interphase and metaphase FISH showed atypical results involving a single PML-RARA fusion, no second fusion, but instead separate diminished PML and RARA signals. RT-PCR confirmed PML-RARA fusion; however, karyotyping detected only an altered chromosome 17. Metaphase FISH showed the single fusion and diminished 5' RARA signals located unexpectedly in the subtelomeric short-arm and long-arm regions of the rearranged chromosome 17, respectively. SNP microarray revealed no copy number abnormality. This paediatric patient with PML-RARA fusion reflects a cryptic insertion that resides within a complex and novel chromosome 17 rearrangement. This rearrangement likely arose via 7 chromosome breaks with the insertion occurring first followed by sequential paracentric and then pericentric inversions.
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16
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Bahreyni A, Yazdian-Robati R, Ramezani M, Rasouli M, Alinezhad Nameghi M, Alibolandi M, Abnous K, Taghdisi SM. Identification and imaging of leukemia cells using dual-aptamer-functionalized graphene oxide complex. J Biomater Appl 2017; 32:74-81. [PMID: 28549385 DOI: 10.1177/0885328217712111] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Acute lymphoblastic leukemia is the most common malignancy in children. Patient improvement completely depends on the diagnosis of acute lymphoblastic leukemia. So there is a great demand for diagnosis of acute lymphoblastic leukemia. In this study, a novel assay based on dual-aptamer (Sgc8c and ATP aptamers)-functionalized graphene oxide (DAFGO) complex was designed for the identification of Molt-4 cells (human acute lymphoblastic leukemia T-cell). This assay relies on the internalization of DAFGO complex into Molt-4 cells, but not into U266 cells, using Sgc8c aptamer as molecular recognition probe, and release of FAM-labeled ATP aptamer from the complex in the presence of high amounts of ATP in lysosome, leading to a strong fluorescence emission. Formation of DAFGO complex was analyzed by fluorometric analysis and gel retardation assay. The internalization of complex was monitored by flow cytometry and fluorescence microscopy in Molt-4 (target) and U266 cells (nontarget) with DAFGO complex. Our results showed that the developed complex was efficiently internalized into target cells and induced a strong fluorescence emission.
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Affiliation(s)
- Amirhossein Bahreyni
- 1 Department of Clinical Biochemistry and Immunogenetic Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | - Rezvan Yazdian-Robati
- 2 Department of Pharmaceutical Biotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Ramezani
- 3 Nanotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mehdi Rasouli
- 1 Department of Clinical Biochemistry and Immunogenetic Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Mazandaran, Iran
| | | | - Mona Alibolandi
- 5 Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khalil Abnous
- 5 Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,6 Department of Medicinal Chemistry, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mohammad Taghdisi
- 7 Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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17
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Li X, Wang C, Chen G, Ji B, Xu Y. Combined chemotherapy for acute promyelocytic leukemia: a meta-analysis. Hematology 2017; 22:450-459. [PMID: 28480800 DOI: 10.1080/10245332.2017.1318239] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Xueliang Li
- Department of Hematology, Linyi People’s Hospital of Shandong Province, Linyi City, China
| | - Chao Wang
- Department of Hematology, Linyi People’s Hospital of Shandong Province, Linyi City, China
| | - Guanglong Chen
- Department of Hematology, Linyi People’s Hospital of Shandong Province, Linyi City, China
| | - Buqiang Ji
- Department of Hematology, Linyi People’s Hospital of Shandong Province, Linyi City, China
| | - Yongchang Xu
- Department of Hematology, Linyi People’s Hospital of Shandong Province, Linyi City, China
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18
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Molecular Characterization of Pediatric Acute Myeloid Leukemia: Results of a Multicentric Study in Brazil. Arch Med Res 2016; 47:656-667. [DOI: 10.1016/j.arcmed.2016.11.015] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/23/2016] [Indexed: 12/19/2022]
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19
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Kim G, Lee HO, Choi JS, Baek HJ, Kook H. Characteristics and Therapeutic Outcomes of Acute Promyelocytic Leukemia in Children and Adolescents. CLINICAL PEDIATRIC HEMATOLOGY-ONCOLOGY 2016. [DOI: 10.15264/cpho.2016.23.2.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Gun Kim
- Department of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Korea
| | - Hyun Ok Lee
- Department of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Korea
| | - Joon Sik Choi
- Department of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Korea
| | - Hee Jo Baek
- Department of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Korea
| | - Hoon Kook
- Department of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Korea
- Environmental Health Center for Childhood Leukemia and Cancer, Chonnam National University Hwasun Hospital, Hwasun, Korea
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20
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De Braekeleer M, De Braekeleer E, Douet-Guilbert N. Geographic/ethnic variability of chromosomal and molecular abnormalities in leukemia. Expert Rev Anticancer Ther 2015. [DOI: 10.1586/14737140.2015.1068123] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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