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Dayton VJ, Thien DH, Ngon HT, Arries C, Sang NN, Lien NP, Kinder S, Dung PC. T-cell large granular lymphocytic leukemia in Vietnam: Using microscope-to-screen videoconferencing to improve diagnosis. Am J Clin Pathol 2024; 161:162-169. [PMID: 37788085 DOI: 10.1093/ajcp/aqad121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2023] [Accepted: 08/30/2023] [Indexed: 10/05/2023] Open
Abstract
OBJECTIVES Leukemia diagnosis in Vietnam is limited by a lack of hematopathology training and expert consultation as well as the cost of high-magnification digitization of hematology slides. Screen-sharing software allows international collaboration with experienced hematopathologists for improved diagnostic accuracy. METHODS A hematopathology education and consultation program was proposed for Vietnam hospitals. By appointment, pathologists in Vietnam with access to a microscope camera, imaging software, and high-speed internet were invited to review slides and data with a volunteer board-certified hematopathologist in the United States using secure videoconferencing software. A single hospital in southern Vietnam assigned a pathologist proficient in English to access this service. All consultations from this site with clinicopathologic information were logged. After a 2-year period of online consultation, case slides for selected diagnoses were reviewed under the microscope in Vietnam to assess concordance. RESULTS In total, 135 consultations were logged, 53 of which were for blood and bone marrow. T-cell large granular lymphocytic leukemia (T-LGLL) was 1 of the most frequent bone marrow consultation-related diagnoses; all diagnoses of this entity were confirmed by in-person microscopy (100% concordance). A records search and physician surveys found no prior documented diagnoses of T-LGLL made in Vietnam before this education and consultation program. CONCLUSIONS Our virtual consultation model has improved patient care in Vietnam by providing correct diagnoses to inform best practices in treatment. As a result of our program, the first Vietnam diagnoses of T-LGLL were made and may help expand on the literature in this area. This model could provide cost-effective, real-time consultation and education services for pathologists in underserved communities.
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Affiliation(s)
- Vanessa J Dayton
- Department of Laboratory Medicine & Pathology, M Health Fairview University of Minnesota Medical Center and University of Minnesota Medical School, Minneapolis, MN, US
- Department of Laboratory Medicine and Pathology, Hennepin Healthcare, Minneapolis, MN, US
| | - Dang Hoang Thien
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Huynh Thien Ngon
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Cade Arries
- Department of Laboratory Medicine & Pathology, M Health Fairview University of Minnesota Medical Center and University of Minnesota Medical School, Minneapolis, MN, US
| | - Nguyen Ngoc Sang
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
| | | | | | - Phu Chi Dung
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
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Iida M, Liu K, Huang XJ, Huang H, Kuwatsuka Y, Moon JH, Lee JW, Lakshmi KM, Dodds A, Wilcox L, Ko BS, Hamidieh AA, Behfar M, Ho KW, Bunworasate U, Ho A, Farzana T, Sim J, Dung PC, Akter M, Ratnayake W, Bravo MR, Gyi AA, Santosa D, Poudyal BS, Batshkh K, Srivastava A, Okamoto S, Atsuta Y. Report on hematopoietic cell transplantations performed in 2018/2019 focusing on the trends of selection of stem cell sources in the Asia-Pacific region: APBMT Activity Survey. Blood Cell Ther 2023; 6:114-123. [PMID: 38149021 PMCID: PMC10749734 DOI: 10.31547/bct-2023-015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/27/2023] [Indexed: 12/28/2023]
Abstract
The number of hematopoietic stem cell transplantations (HCTs) is increasing annually worldwide, and the Asia-Pacific (AP) region is no exception. We report on the absolute number of HCTs in 2018 and 2019 and the trends in graft selection and disease indication in the past few decades. In 2018, 24,292 HCTs were performed in the AP region, of which 8,754 (36.0%) were autologous and 15,538 (64.0%) were allogeneic. Among the allogeneic HCTs, 10,552 (67.9%) of the recipients were related to their donors, whereas 4,986 (32.1%) were unrelated. In 2019, 27,583 HCTs were reported, of which 17,613 (63.9%) were allogeneic and 9,970 (36.1%) were autologous. Although, in 2010, there was a nearly equal number of related and unrelated HCTs, the difference has shown an annual increase, with more than double (2.05) the number of related than unrelated HCTs in 2019. Recent trends in the AP region show that peripheral blood has overwhelmingly surpassed the bone marrow as a graft source for both related and unrelated HCTs, with the haploidentical donor type being preferred; however, their trends in each country/region were quite different among countries/regions. In 2019, the main conditions requiring HCT were acute myelogenous leukemia (n=6,629 [24.0%]), plasma cell disorders (PCD) (n=4,935 [17.9%]), malignant lymphoma (ML) (n=4,106 [14.9%]), acute lymphoblastic leukemia (AML) (n=3,777 [13.7%]), myelodysplastic syndrome or myelodysplastic/myeloproliferative neoplasm (n=1,913 [6.9%]), severe aplastic anemia (n=1,671 [6.1%]), and hemoglobinopathy (n=910 [3.3%]). PCD and ML were the main indications for autologous HCT, and the number of PCD cases has grown more prominent than the corresponding of ML. The increased number of allogeneic transplants for hemoglobinopathy remains prominent, as well as that of AML and acute lymphocytic leukemia for the past 5 years. There was a significant regional variation in the number of facilities performing HCTs, ranging from one in Mongolia and Nepal to 313 in Japan, and differing regional densities varying from 0.1 in Indonesia and Pakistan to 24.7 in Japan. The total transplant density per 10 million population in each country/region also differed (0.2 in Indonesia and 627 in New Zealand). This annual Activity Survey aims to help all participating countries/regions understand the changes in HCT, serve as an asset in promoting HCT activities in the AP region, and be used as a reference for comparison with other registries from Europe and the United States.
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Affiliation(s)
- Minako Iida
- Department of Promotion for Blood and Marrow Transplantation, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Kaiyan Liu
- Department of Hematology, Peking University Institute of Hematology, Beijing, China
| | - Xiao Jun Huang
- Department of Hematology, Peking University Institute of Hematology, Beijing, China
| | - He Huang
- Department of Hematology, Zhejian University, Zhejiang, China
| | - Yachiyo Kuwatsuka
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Joon Ho Moon
- Division of Hematology-Oncology, Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Jong Wook Lee
- Division of Hematology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kavitha M Lakshmi
- Department of Hematology, Christian Medical College Hospital, Vellore, India
| | - Anthony Dodds
- St. Vincent's Hospital Sydney, Sydney
- Australasian Bone Marrow Transplant Recipient Registry (ABMTRR), Sydney, Australia
| | - Leonie Wilcox
- Australasian Bone Marrow Transplant Recipient Registry (ABMTRR), Sydney, Australia
| | - Bor-Sheng Ko
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Amir Ali Hamidieh
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell & Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Maryam Behfar
- Pediatric Cell and Gene Therapy Research Center, Gene, Cell & Tissue Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Kim Wah Ho
- Department of Hematology, Hospital Ampang, Ampang Selangor, Malaysia
| | - Udomsak Bunworasate
- Division of Hematology and Center of Excellence in Translational Hematology, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand
| | - Aloysius Ho
- Department of Hematology, Singapore General Hospital, Singapore, Singapore
| | - Tasneem Farzana
- Department of Clinical Hematology, National Institute of Blood Disease and Bone Marrow Transplantation, Karachi, Pakistan
| | - Joycelyn Sim
- Department of Medicine, Queen Mary Hospital, Hong Kong
| | - Phu Chi Dung
- Stem Cell Transplantation Department, Blood Transfusion and Hematology Hospital, Ho Chi Minh, Vietnam
| | - Mafruha Akter
- Department of Hematology and BMT, Dhaka Medical College and Hospital, Dhaka, Bangladesh
| | | | - Marjorie Rose Bravo
- St Luke's Medical Center Quezon City, IM Hematology/Blood and Marrow Transplant, Quezon, the Philippines
| | - Aye Aye Gyi
- Department of Clinical Hematology, North Okkalapa General Hospital, Yangon, Myanmar
| | - Damai Santosa
- Division of Hematology Medical Oncology, Depatment of Internal Medicine, Dr. Kariadi Hospital/Diponegoro University, Semarang, Indonesia
| | - Bishesh Sharma Poudyal
- Civil Service Hospital, Clinical Hematology and Bone Marrow Transplant Unit, Kathmandu, Nepal
| | - Khishigjargal Batshkh
- Bone and Marrow transplantation team, Hematology Department, National First Central Hospital of Mongolia, Ulaanbaatar, Mongolia
| | - Alok Srivastava
- Department of Hematology, Christian Medical College Hospital, Vellore, India
| | - Shinichiro Okamoto
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation (JDCHCT), Department of Registry Science for Transplant and Cellular Therapy, Aichi Medical University School of Medicine, Nagakute, Japan
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Dayton VJ, Hoang Thien D, Xinh PT, Arries C, Sang NN, Linh NNN, Lien NP, Dung PC. Possible Concomitant Aggressive NK Cell Leukemia and EBV-positive T-cell lymphoma; Using the online beta version of WHO-HAEM5 and videoconferencing software to make diagnoses accessible in an emerging economy. Diagn Pathol 2023; 18:111. [PMID: 37803436 PMCID: PMC10557268 DOI: 10.1186/s13000-023-01395-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 09/22/2023] [Indexed: 10/08/2023] Open
Abstract
BACKGROUND Using the World Health Organization Classification 5th edition (beta version online; WHO-HAEM5bv) in emerging economies is key to global healthcare equity. Although there may be ongoing updates, hesitancy in accepting and reporting these diagnoses in publication conflicts with the WHO's commitment to global accessibility. Aggressive NK cell leukemia (ANKL) and systemic EBV-positive T-cell lymphoma of childhood (SEBVTCL) with CD4-positive immunophenotype are both rare entities, are most described in Asians and East Asians, are associated with prior systemic chronic active EBV disease (CAEBV), and presentation with Hemophagocytic Lymphohistiocytosis (HLH). Recognizing and diagnosing any one of these entities requires not only training and experience in hematopathology, but good cooperation between clinical physicians and all areas of the laboratory. We describe a 30-year-old woman who presented to a Vietnam hospital and was rapidly diagnosed with ANKL, SEBVTCL, and HLH using WHO-HAEM5bv essential criteria, aided by expert consultation from a United States (US) board certified hematopathologist in real-time using video conferencing software. METHODS Zoom™ videoconferencing software; Immunohistochemistry; flow cytometric immunophenotyping; polymerase chain reaction (PCR), Next Generation Sequencing (NGS). RESULTS At the time of hospital admission, automated complete blood count (CBC) with differential count showed slight anemia, slight lymphocytosis, and moderate thrombocytopenia. HIV serology was negative. Whole blood PCR for EBV was positive showing 98,000 copies/ml. A lymph node biopsy revealed histology and immunohistochemistry consistent with the online beta version WHO-HAEM5 classification of SEBVTCL arising in CAEBV. Blood and bone marrow studies performed for staging revealed no histologic or immunohistochemical evidence of T-cell lymphoma in the bone marrow core, however, atypical blood smear lymphocyte morphology and blood immunophenotyping by flow cytometry were consistent with WHO-HAEM5 classification of ANKL. NGS revealed no evidence of genetic variant(s) associated with HLH in Vietnam. All laboratory studies were performed at Blood Transfusion Hematology Hospital (BTHH) in Ho Chi Minh City Vietnam. CONCLUSION Although Vietnam, an emerging economy, currently lacks the laboratory infrastructure to more rigorously confirm a rare synchronous presentation of two distinct EBV-driven T/NK cell neoplasms, these two concomitant diagnoses were made using only laboratory techniques available in Vietnam with the help of WHO-HAEM5bv and real-time video consultation by a US hematopathologist.
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Affiliation(s)
- Vanessa J Dayton
- Laboratory Medicine and Pathology, Hennepin County Medical Center, Minneapolis, MN, USA.
| | - Dang Hoang Thien
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Phan Thi Xinh
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Cade Arries
- Laboratory Medicine and Pathology, University of Minnesota Medical Center-Fairview and University of Minnesota Medical School, Hematopathology, Minneapolis, MN, USA
| | - Nguyen Ngoc Sang
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
| | | | | | - Phu Chi Dung
- Blood Transfusion Hematology Hospital, Ho Chi Minh City, Vietnam
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Viprakasit V, Hamdy MM, Hassab HMA, Sherief LM, Al-Bagshi M, Khattab M, Chuncharunee S, Dung PC, Küpesiz A, Shekhawat A, Sonawane Y, Perez LT, Slader C, Taher AT. Patient preference for deferasirox film-coated versus dispersible tablet formulation: a sequential-design phase 2 study in patients with thalassemia. Ann Hematol 2023:10.1007/s00277-023-05240-3. [PMID: 37227493 DOI: 10.1007/s00277-023-05240-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/17/2023] [Indexed: 05/26/2023]
Abstract
Iron chelation therapy (ICT) is the mainstay of treatment in patients with thalassemia requiring blood transfusions. This phase 2 JUPITER study evaluated patient preference between film-coated tablet (FCT) and dispersible tablet (DT) in transfusion-dependent thalassemia (TDT) or non-TDT (NTDT) patients treated with both formulations in a sequential manner. The primary endpoint was patient-reported preference for FCT over DT, while secondary outcomes included patient reported outcomes (PROs) evaluated by overall preference, and by age, thalassemia transfusion status, and previous ICT status. Out of 183 patients screened, 140 and 136 patients completed the treatment periods 1 and 2 of the core study, respectively. At week 48, the majority of patients preferred FCT over DT (90.3 vs. 7.5%; difference of percentage: 0.83 [95% confidence interval (CI), 0.75-0.89; P < 0.0001]). FCT scored better on secondary PROs and showed less severe gastrointestinal symptoms than DT, except in the change of modified Satisfaction with Iron Chelation Therapy (mSICT) preference scores, which were similar for both the formulations. Patients with TDT had stable ferritin levels, while it showed a downward trend up to week 48 in patients with NTDT on deferasirox treatment. Overall, 89.9% of patients reported ≥ 1 adverse event (AE), of which 20.3% experienced ≥ 1 serious AE. The most common treatment-emergent AEs were proteinuria, pyrexia, urine protein/creatinine ratio increase, diarrhea, upper respiratory tract infections, transaminase increase, and pharyngitis. Overall, this study reinforced the observations from the previous study by showing a distinct patient preference for FCT over DT formulation and further supported the potential benefits of life-long compliance with ICT.
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Affiliation(s)
- Vip Viprakasit
- Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok Noi, Bangkok, 10700, Thailand
| | - Mona M Hamdy
- Clinical Research Center, Cairo University, Cairo, 11562, NA, Egypt
| | - Hoda M A Hassab
- Pediatric Department & Clinical Research Center, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Laila M Sherief
- Faculty of Medicine, Zagazig University, Zagazig Sharqia, 44519, Egypt
| | | | - Mohammed Khattab
- Centre d'Hématologie Et d'oncologie Pédiatrique - CHU Ibn Sina Rabat, 10102, Rabat, Morocco
| | | | - Phu Chi Dung
- Hochiminh City Blood Transfusion Hematology Hospital, Ho Chi Minh City, 700000, Vietnam
| | | | | | - Yamini Sonawane
- Novartis Healthcare Private Limited, Hyderabad, India, 500081
| | | | | | - Ali T Taher
- Division of Hematology and Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
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Thao LTT, Ha CT, Ha NTT, Beaupha SMC, Nghia H, Tung TT, Son NT, Binh NT, Dung PC, Vu HA, Xinh PT. Cytogenetic Characteristics of de novo Acute Myeloid Leukemia in Southern Vietnam. Asian Pac J Cancer Prev 2023; 24:1789-1795. [PMID: 37247302 PMCID: PMC10495905 DOI: 10.31557/apjcp.2023.24.5.1789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 05/16/2023] [Indexed: 05/31/2023] Open
Abstract
BACKGROUND The cytogenetic characteristics are important factors for risk stratification at diagnosis of acute myeloid leukemia (AML); however, cytogenetic profile of Vietnamese patients with AML remains undetermined. In this study, we present the chromosomal data of de novo AML patients in Southern Vietnam. METHODS We performed cytogenetic testing for 336 AML patients using G banding. If the patients had suspected abnormalities, fluorescence in situ hybridization with probes of inv(3)(q21q26)/t(3;3)(q21;q26), 5q31, 7q31, t(8;21)(q21.3;q22), 11q23, t(15;17)(q24;q21), inv(16)(p13q22)/t(16;16)(p13;q22)were analyzed. Patients without above aberrations or with normal karyotype were tested by fluorescence in situ hybridization using probe 11q23. RESULTS We found that the median age was 39 years. According to French - American - British classification, AML-M2 is the most frequent type with 35.1%. Chromosomal abnormalities were detected in 208 cases, accounting for 61.9%. Among structural abnormalities, t(15;17) was the most common (19.6%), followed by t(8;21) and inv (16)/t(16;16) in 10.1% and 6.2%, respectively. In perspective of chromosomal numerical abnornmalities, loss of sex chromosomes are the most common (7.7%), followed by +8 in 6.8%, -7/del(7q) in 4.4%, +21 in 3.9% and -5/del (5q) in 2.1%. The prevalence of addditional cytogenetic aberrations accompanying with t(8;21) and inv(16)/t(16;16) were 82.4% and 52.4%, repectively. None of +8 cases was associated with t(8;21). Regarding cytogenetic risk assessment according to European Leukemia Net 2017, there were 121 (36%) patients in favorable-risk, 180 (53.6%) in intermediate-risk and 35 (10.4%) in adverse-risk group. CONCLUSION In conclusion, this is the first comprehensive cytogenetic profile of Vietnamese patients diagnosed with de novo AML, which helps clinical doctors in prognostic classification for AML patients in Southern Vietnam.
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Affiliation(s)
- Lai Thi Thanh Thao
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.
- Department of Hematology, Cho Ray Hospital, Ho Chi Minh City, Vietnam.
| | - Chau Thuy Ha
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam.
| | - Nguyen Thi Thanh Ha
- Department of Molecular Biology, Dai Phuoc Clinic, Ho Chi Minh City, Vietnam.
| | - Suzanne Monivong Cheanh Beaupha
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.
- Department of Hematology, Cho Ray Hospital, Ho Chi Minh City, Vietnam.
| | - Huynh Nghia
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam.
| | - Tran Thanh Tung
- Department of Hematology, Cho Ray Hospital, Ho Chi Minh City, Vietnam.
| | - Nguyen Truong Son
- Department of Hematology, Cho Ray Hospital, Ho Chi Minh City, Vietnam.
| | - Nguyen Tan Binh
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam.
| | - Phu Chi Dung
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam.
| | - Hoang Anh Vu
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam.
| | - Phan Thi Xinh
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam.
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Nghia H, Than HH, Dong CV, Oanh TTK, Truc VTT, Ngan CTT, Ngon HT, Binh NT, Dung PC, Anh Vu H, Xinh PT. The effects of NUDT15 and TPMT variants on mercaptopurine treatment in Vietnamese pediatric acute lymphoblastic leukemia patients. Pediatr Hematol Oncol 2022; 39:561-570. [PMID: 35156873 DOI: 10.1080/08880018.2022.2035027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
6-mercaptopurine (6-MP) plays a critical role in the treatment of pediatric acute lymphoblastic leukemia (ALL). NUDT15 and TPMT gene variants have been strongly associated with myelotoxicity caused by using 6-MP. Therefore, the purpose of this study is to investigate the frequency of NUDT15 and TPMT polymorphisms, as well as the impact of NUDT15 variants on the use of 6-MP to treat pediatric ALL in Vietnam. Sanger sequencing was applied to detect NUDT15 and TPMT gene variants in 70 pediatric ALL patients. Duration of drug interruption, level of neutropenia, and 6-MP tolerance dose were recorded. NUDT15 variants were detected from 23 out of 70 (32.9%) patients. Three well-known haplotype variants were identified as NUDT15 *2 (p.V18_V19insGV and p.R139C), *3 (p.R139C), and *6 (p.V18_V19insGV); besides, a novel NUDT15 p.R11Q was not previously reported. The NUDT15 wild-type, heterozygous variant, and homozygous variant genotypes were 67.1%, 30.1%, and 2.8%, respectively. Two TPMT heterozygous polymorphisms were TPMT*3C and *6, accounted for 2.8%. Patients with intermediate and low activity NUDT15 were given the median 6-MP tolerance dose of 55.2 and 37.2 versus 69.5 mg/m2/day of patients with NUDT15 normal activity (p = 0.0001). Patients with homozygous variant diplotype were drastically sensitive to 6-MP, with an average dose intensity of 49.6%, compared to 73.6% and 92.7% of those with heterozygous and wild-type diplotype, respectively (p = 0.0001). Our results suggest that 6-MP dose adjustment should be based on NUDT15 variants in pediatric Vietnamese ALL patients.
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Affiliation(s)
- Huynh Nghia
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Huynh Huu Than
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Cao Van Dong
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Tran Thi Kieu Oanh
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Vo Thi Thanh Truc
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Cai Thi Thu Ngan
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Huynh Thien Ngon
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Nguyen Tan Binh
- Department of Hematology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Phu Chi Dung
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Hoang Anh Vu
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Phan Thi Xinh
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
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7
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Xinh PT, Chuong HQ, Ha NTT, Tram HDB, Van Dong C, Thanh LVH, Hoa NTH, Nghia H, Binh NT, Dung PC, Vu HA. Spectrum of HBB gene mutations among 696 β-thalassemia patients and carriers in Southern Vietnam. Mol Biol Rep 2022; 49:2601-2606. [PMID: 35023007 DOI: 10.1007/s11033-021-07062-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 12/08/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Thalassemias are common inherited blood disorders that have been extensively studied in Asia. Thus far, data on mutations of the HBB gene in Vietnamese patients with β-thalassemia are limited to small studies. METHODS We recruited 696 β-thalassemia patients and carriers in southern Vietnam and analyzed for the HBB gene mutations using Sanger sequencing technology. RESULTS We documented 27 types of known mutations and 10 types of novel variants on 737 alleles out of 1392 surveyed alleles. The three most common mutations, which account for more than ¾ of all mutant alleles, were c.79G > A (HbE), c.124_127delTTCT, and c.52A > T. The novel variants were mainly located in 5' untranslated region (c.-92delC and c.-67A > G) and 3' untranslated region (c.*4C > T, c.*116_*117insA, c.*142 T > C, c.*156G > C, c.*176_*177insA, and c.*247 T > C), except for one in intron 2 (c.316-99 T > G) and one in exon 3 (c.385delG). CONCLUSION We provide here a comprehensive mutation spectrum of the HBB gene in Southern Vietnam, which is crucial for carrier screening and prenatal diagnosis in the future.
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Affiliation(s)
- Phan Thị Xinh
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Ho Quoc Chuong
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam
| | - Nguyen Thi Thanh Ha
- Department of Molecular Biology, Dai Phuoc Clinic, Ho Chi Minh City, Vietnam
| | | | - Cao Van Dong
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Le Vu Ha Thanh
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Nguyen Thi Hong Hoa
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Huynh Nghia
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.,Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Nguyen Tan Binh
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam.,Department of Hematology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam
| | - Phu Chi Dung
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Hoang Anh Vu
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, 217 Hong Bang Street, District 5, Ho Chi Minh City, Vietnam.
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Iida M, Dodds A, Akter M, Srivastava A, Moon JH, Dung PC, Bravo MR, Gyi AA, Jayathilake D, Liu K, Ko BS, Hamidieh A, Ho KW, Ho A, Ungkanont A, Farzana T, Sim J, Poudyal B, Batshkh K, Okamoto S, Atsuta Y. The 2016 APBMT Activity Survey Report: Trends in haploidentical and cord blood transplantation in the Asia-Pacific region. Blood Cell Ther 2021; 4:20-28. [PMID: 36712901 PMCID: PMC9847278 DOI: 10.31547/bct-2020-013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 11/13/2020] [Indexed: 02/01/2023]
Abstract
This report describes the results of the Asia-Pacific Blood and Marrow Transplantation Group (APBMT) Activity Survey 2016, focusing on the trends of haploidentical and cord blood (CB) transplants in the Asia-Pacific region. Mongolia and Nepal submitted their first activity data in this survey, and the number of countries/regions participating in the activity survey grew to 20. The annual number of transplants exceeded 20,000 for the first time in 2016, and the total number of centers increased to 686. About 87.9% of all hematopoietic stem cell transplantations (HSCTs) were performed in China, Japan, Korea, India, and Australia with China performing the highest number. Beginning with the 2016 survey, APBMT modified the survey forms and initiated the collection of the exact number of haploidentical transplants. The total number of such transplants was 3,871, and 66.0% of those were performed in China. Meanwhile, cord blood transplants in this region remained high (1,612), and 81.8% of them (1,319) were performed in Japan. The number of facilities and transplants, the ratio of haploidentical transplants to related transplants, the ratio of CB transplants to unrelated transplants, and proportions of haploidentical and CB transplants per capita significantly differed among countries/regions in the Asia-Pacific region. Data collection and analysis revealed the transition and diversity of transplants in this region. This report also shows a dramatic increase in haploidentical transplants as seen in other parts of the world, while revealing uniquely that the activity of cord blood transplant remains high in this region.
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Affiliation(s)
- Minako Iida
- Department of Promotion for Blood and Marrow Transplantation, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Anthony Dodds
- St. Vincent's Pathology, St. Vincent's Health Network, Sydney, and Australasian Bone Marrow Transplant Recipient Registry (ABMTRR), Sydney, Australia
| | - Mafruha Akter
- Department of Hematology and BMT, Dhaka Medical College and Hospital, Dhaka, Bangladesh
| | - Alok Srivastava
- Department of Haematology, Christian Medical College Hospital, Vellore, India
| | - Joon Ho Moon
- Division of Hematology-Oncology, Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Phu Chi Dung
- Stem Cell Transplantation Department, Blood Transfusion and Hematology Hospital, Ho Chi Minh, Vietnam
| | - Marjorie Rose Bravo
- St Luke's Medical Center Quezon City, IM Hematology/Blood and Marrow Transplant, Quezon, Philippines
| | - Aya Aya Gyi
- Department of Clinical Haematology, North Okkalapa General Hospital, Yangon, Myanmar
| | | | - Kaiyan Liu
- Department of Hematology, Peking University Institute of Hematology, Beijing, China
| | - Bor-Sheng Ko
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Amir Hamidieh
- Pediatric Cell Therapy Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kim Wah Ho
- Department of Hematology, Hospital Ampang, Ampang Selangor, Malaysia
| | - Aloysius Ho
- Department of Haematology, Singapore General Hospital, Singapore
| | - Artit Ungkanont
- Chakri Naruebodindra Medical Institute, Faculty of Medicine Ramathibodi Hospital, Mahidol University, Samut Prakan, Thailand
| | - Tasneem Farzana
- Department of Clinical Haematology, National Institute of Blood Disease and Bone Marrow Transplantation, Karachi, Pakistan
| | - Joycelyn Sim
- Department of Medicine, Queen Mary Hospital, Hong Kong
| | - Bishesh Poudyal
- Civil Service Hospital, Clinical Hematology and Bone Marrow Transplant Unit, Kathmandu, Nepal
| | - Khishigjargal Batshkh
- Bone and Marrow transplantation team, Hematology Department, National First Central Hospital of Mongolia, Ulaanbaatar, Mongolia
| | - Shinichiro Okamoto
- Division of Hematology, Department of Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation (JDCHCT), Nagoya, Japan
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Abstract
Patient: Female, 17 Final Diagnosis: Multiple myeloma Symptoms: Bone pain Medication: — Clinical Procedure: — Specialty: Hematology
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Affiliation(s)
- Huynh Van Man
- Stem Cell Transplantation Department, Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Phu Chi Dung
- Stem Cell Transplantation Department, Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
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Vu HA, Thao TT, Dong CV, Vuong NL, Chuong HQ, Van PNT, Nghia H, Binh NT, Dung PC, Xinh PT. Clinical and Hematological Relevance of JAK2V617F, CALR, and MPL Mutations in Vietnamese Patients with Essential Thrombocythemia. Asian Pac J Cancer Prev 2019; 20:2775-2780. [PMID: 31554376 PMCID: PMC6976857 DOI: 10.31557/apjcp.2019.20.9.2775] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Indexed: 12/22/2022] Open
Abstract
Background: The picture of Vietnamese patients with essential thrombocythemia (ET) remains mostly undetermined. Our study intended to determine the frequency of JAK2V617F, CALR exon 9, and MPL exon 10 mutations as well as to analyze clinical characteristics associated with different mutational status in Vietnamese ET patients. Methods: We explored mutations of JAK2V617F, MPL, and CALR from 395 patients using allele specific oligonucleotide – polymerase chain reaction and Sanger sequencing techniques; then, the clinical and hematological features were compared according to mutation patterns. Results: We found that JAK2V617F, CALR exon 9, and MPL exon 10 mutations were present in 56.2%, 27.6%, and 1% of the 395 patients with ET, respectively. Twelve different types of CALR mutation were detected in 109 patients, with the CALR type 1 mutation (c.1099_1150del; L367fs*46) was the most common, followed by CALR type 2 mutation (c.1154_1155insTTGTC; K385fs*47). The JAK2V617F-positive patients had older age, higher white blood cell counts and higher hemoglobin levels but lower platelet counts than patients with CALR mutations or patients negative for triple tests. There was no significant difference regarding sex ratio, white blood cell counts, platelet counts and hemoglobin levels among CALR mutation subtypes. Conclusion: we reported high frequency of JAK2V617F, CALR, and MPL mutations in Vietnamese patients with ET and underscored the importance of combined genetic tests for diagnosis and classification of ET into different subtypes.
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Affiliation(s)
- Hoang Anh Vu
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Tran Thi Thao
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam.
| | - Cao Van Dong
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Nguyen Lam Vuong
- Department of Medical Statistics and Informatics, Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Ho Quoc Chuong
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Phan Nguyen Thanh Van
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Huynh Nghia
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam. ,Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Nguyen Tan Binh
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Phu Chi Dung
- Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
| | - Phan Thi Xinh
- Department of Hematology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam. ,Ho Chi Minh City Blood Transfusion and Hematology Hospital, Ho Chi Minh City, Vietnam
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Chi HT, Ly BTK, Vu HA, Sato Y, Dung PC, Xinh PT. Synergistic effect of all‑trans retinoic acid in combination with protein kinase C 412 in FMS-like tyrosine kinase 3-mutated acute myeloid leukemia cells. Mol Med Rep 2015; 11:3969-75. [PMID: 25592076 DOI: 10.3892/mmr.2015.3203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 11/20/2014] [Indexed: 11/06/2022] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease. Numerous molecular abnormalities have been identified in AML and, amongst these, FMS‑like tyrosine kinase 3 (FLT3) mutations are one of the most common somatic alterations detected. In the present study, an in vitro investigation was performed to evaluate the effects of all‑trans retinoic acid (ATRA) and PKC412, alone and in combination, in FLT3‑mutated AML cell lines. Trypan blue exclusion test, as well as morphological, western blot and isobologram analyses were conducted. The results indicated that the combined ATRA and PKC412 treatment exhibited additive or synergistic effects in FLT3‑mutated AML cell lines. These results provided in vitro evidence for the future clinical trials evaluating the effects of a combination treatment using PKC412 and ATRA on AML patients with FLT3‑mutations.
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Affiliation(s)
- Hoang Thanh Chi
- Department of Molecular Cytogenetics, Blood Transfusion and Hematology Hospital Ho Chi Minh City, Ho Chi Minh City 711512, Vietnam
| | - Bui Thi Kim Ly
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Tokyo 108‑8639, Japan
| | - Hoang Anh Vu
- Center for Molecular Biomedicine, The University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City 748908, Vietnam
| | - Yuko Sato
- Japanese Red Cross College of Nursing, Tokyo 150‑0012, Japan
| | - Phu Chi Dung
- Department of First Pediatric Hematology, Blood Transfusion and Hematology Hospital Ho Chi Minh City, Ho Chi Minh City 711512, Vietnam
| | - Phan Thi Xinh
- Department of Molecular Cytogenetics, Blood Transfusion and Hematology Hospital Ho Chi Minh City, Ho Chi Minh City 711512, Vietnam
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Chi HT, Ly BTK, Vu HA, Sato Y, Dung PC, Xinh PT. Down-regulated expression of NPM1 in IMS-M2 cell line by (-)-epigallocatechin-3-gallate. Asian Pac J Trop Biomed 2014; 4:570-4. [PMID: 25183279 DOI: 10.12980/apjtb.4.2014apjtb-2014-0177] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 07/23/2014] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE To investigate the inhibited effect of epigallocatechin-3-gallate (EGCG) on the expression of NPM1 in IMS-M2 cells harboring the NPM1 mutations. METHODS Cell proliferation assay was performed to test the effects of EGCG on cell growth of IMS-M2 cells harboring the NPM1 mutations. Western blot analysis were performed to test the protein expression of NPM1, AKT, those associated with apoptosis. RESULTS EGCG can down-regulate the expression of NPM1 in IMS-M2 cells harboring the NPM1 mutations. Moreover, EGCG also suppressed the cell proliferation and induced apoptosis in IMS-M2 cells. CONCLUSIONS The results suggested that EGCG could be considered as a reagent for treatment of AML patients with NPM1 mutations.
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Affiliation(s)
- Hoang Thanh Chi
- Department of Molecular Cytogenetics, Hematology and Blood Transfusion Hospital in Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Bui Thi Kim Ly
- Department of Medical Genome Sciences, Graduate School of Frontier Sciences, the University of Tokyo, Tokyo, Japan
| | - Hoang Anh Vu
- Center for Molecular Biomedicine, The University of Medicine and Pharmacy-Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Yuko Sato
- Basic nursing science, The Japanese Red Cross College of Nursing Japan, Tokyo, Japan
| | - Phu Chi Dung
- Department of Molecular Cytogenetics, Hematology and Blood Transfusion Hospital in Ho Chi Minh City, Ho Chi Minh, Vietnam
| | - Phan Thi Xinh
- Department of Molecular Cytogenetics, Hematology and Blood Transfusion Hospital in Ho Chi Minh City, Ho Chi Minh, Vietnam ; Center for Molecular Biomedicine, The University of Medicine and Pharmacy-Ho Chi Minh City, Ho Chi Minh, Vietnam
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