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Arai S, Tachibana T, Izumi A, Takeda T, Tamai Y, Sato S, Hashimoto C, Fujimaki K, Ishii R, Kabasawa N, Hirasawa A, Inoue Y, Tanaka M, Suzuki T, Nakajima H. WT1-guided pre-emptive therapy after allogeneic hematopoietic stem cell transplantation in patients with acute myeloid leukemia. Int J Hematol 2024:10.1007/s12185-024-03795-z. [PMID: 38795248 DOI: 10.1007/s12185-024-03795-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 05/10/2024] [Accepted: 05/17/2024] [Indexed: 05/27/2024]
Abstract
Measurable residual disease (MRD)-guided pre-emptive therapies are now widely used to prevent post-transplant hematological relapse in patients with acute myeloid leukemia (AML). This single-center retrospective study aimed to clarify the significance of pre-emptive treatment based on Wilms' tumor gene-1 mRNA (WT1) monitoring for MRD in patients with AML who underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT). Patients with AML who received chemotherapy for hematological relapse or WT1 increase after allo-HSCT were eligible for inclusion. From January 2017 to June 2022, 30 patients with a median age of 57 (16-70) years were included and stratified into two groups: 10 with WT1 increase and 20 with hematological relapse. The median times from HCT to WT1 increase or hematological relapse were 309 days (range: 48-985) or 242 days (range: 67-1116), respectively. Less intensive chemotherapy using azacitidine or cytarabine was selected for all patients with WT1 increase and 12 (60%) with hematological relapse. The 1-year overall survival and event-free survival rates for WT1 increase and hematological relapse were 70% vs. 44% (P = 0.024) and 70% vs. 29% (P = 0.029), respectively. These real-world data suggest that WT1-guided pre-emptive therapy may be superior to therapy after hematological relapse in patients with AML who have undergone allo-HSCT.
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Affiliation(s)
- Shota Arai
- Department of Hematology, Kanagawa Cancer Center, 2-3-2 Nakao, Asahi-Ku, Yokohama, 241-8515, Japan
- Department of Hematology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Takayoshi Tachibana
- Department of Hematology, Kanagawa Cancer Center, 2-3-2 Nakao, Asahi-Ku, Yokohama, 241-8515, Japan.
| | - Akihiko Izumi
- Department of Hematology, Kanagawa Cancer Center, 2-3-2 Nakao, Asahi-Ku, Yokohama, 241-8515, Japan
| | - Takaaki Takeda
- Department of Hematology, Kanagawa Cancer Center, 2-3-2 Nakao, Asahi-Ku, Yokohama, 241-8515, Japan
| | - Yotaro Tamai
- Division of Hematology, Shonan Kamakura General Hospital, Kamakura, Japan
| | - Shuku Sato
- Division of Hematology, Shonan Kamakura General Hospital, Kamakura, Japan
| | - Chizuko Hashimoto
- Department of Hematology/Oncology, Yamato Municipal Hospital, Yamato, Japan
| | | | - Ryuji Ishii
- Department of Hematology, Japan Community Health Care Organization Sagamino Hospital, Sagamihara, Japan
| | - Noriyuki Kabasawa
- Division of Hematology, Department of Medicine, Showa University Fujigaoka Hospital, Yokohama, Japan
| | - Akira Hirasawa
- Department of Hematology, Yokohama Rosai Hospital, Yokohama, Japan
| | - Yasuyuki Inoue
- Department of Internal Medicine, Division of Hematology, Yokohama City Seibu Hospital, St. Marianna University School of Medicine, Yokohama, Japan
| | - Masatsugu Tanaka
- Department of Hematology, Kanagawa Cancer Center, 2-3-2 Nakao, Asahi-Ku, Yokohama, 241-8515, Japan
| | - Takahiro Suzuki
- Department of Hematology, Kitasato University School of Medicine, Sagamihara, Japan
| | - Hideaki Nakajima
- Department of Hematology and Clinical Immunology, Yokohama City University School of Medicine, Yokohama, Japan
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Yu T, Zhan Q, Yan X, Luo X, Wang X, Tang X, Zhang H, Yang Z, Chen J, Liu L, Wang L. Clinical significance of WT1 in the evaluation of therapeutic effect and prognosis of non-M3 acute myeloid leukemia. Cancer Biol Ther 2023; 24:2285801. [PMID: 38031921 PMCID: PMC10783827 DOI: 10.1080/15384047.2023.2285801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 11/15/2023] [Indexed: 12/01/2023] Open
Abstract
To explore the clinical significance and prognosis of acute myeloid leukemia (AML) patients with WT1 mutations.In total, the clinical data of 269 adult patients with non-M3 AML were considered retrospectively. From these patients, 153 carried WT1 mutation whereas 116 were negative. WT1 mutation positive patients were further divided into WT1 low expression and high expression groups base on the expression level of WT1 by qPCR at diagnosis (cut off: 170500). Survival and therapeutic effect analysis were performed for the above patients with different interfering factors such as co-mutations, the extent of WT1 log reduction and the chemotherapy regimens. Patients with high WT1 expression have higher rate of relapse. We can accurately identify patients with inferior outcomes when we take the following factors into consideration: the WT1 expression level at diagnosis; different prognostic factors including co-mutations (especially NPM1 and FLT3-ITD); the log reduction of WT1 after induction therapy and the risk of stratification. Idarubicin + Cytarabine (IA) regimen could reduce the expression level of WT1 after treatment, and Allo-HSCT played an important role in improving the prognosis of patients with WT1 high expression and patients with WT1 negativity. Among the relapsed patients, there existed a rising trend of WT1-MRD in advance than MFC-MRD and that of patients with continuous complete remission (CR). Different clinical background should be taken into consideration when we judge the prognosis and therapeutic effect of patients with WT1 mutations. In addition, WT1 may be an optional MRD marker, which needs regular monitoring.
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Affiliation(s)
- Tingyu Yu
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Qian Zhan
- Molecular Testing Center, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xinyu Yan
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaohua Luo
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xin Wang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xiaoqiong Tang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongbin Zhang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zesong Yang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jianbin Chen
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Lin Liu
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Li Wang
- Department of Hematology, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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3
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Wu J, Yan H, Xiang C. Wilms' tumor gene 1 in hematological malignancies: friend or foe? Hematology 2023; 28:2254557. [PMID: 37668240 DOI: 10.1080/16078454.2023.2254557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 08/29/2023] [Indexed: 09/06/2023] Open
Abstract
Wilms' tumor gene 1 (WT1) is a transcription and post-translational factor that has a crucial role in the biological and pathological processes of several human malignancies. For hematological malignancies, WT1 overexpression or mutation has been found in leukemia and myelodysplastic syndrome. About 70-90% of acute myeloid leukemia patients showed WT1 overexpression, and 6-15% of patients carried WT1 mutations. WT1 has been widely regarded as a marker for monitoring minimal residual disease in acute myeloid leukemia. Many researchers were interested in developing WT1 targeting therapy. In this review, we summarized biological and pathological functions, correlation with other genes and clinical features, prognosis value and targeting therapy of WT1 in hematological features.
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Affiliation(s)
- Jie Wu
- Department of Emergency Medicine, The Fifth People's Hospital of Huai'an and Huai'an Hospital Affiliated to Yangzhou University, Huai'an, People's Republic of China
| | - Hui Yan
- Department of Clinical Medicine, Medical College, Yangzhou University, Yangzhou, People's Republic of China
| | - Chunli Xiang
- Department of General Medicine, The Affiliated Huai'an Hospital of Xuzhou Medical University and Huai'an Second People's Hospital, Huai'an, People's Republic of China
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Xu N, Chen WM, Li LD, Long LY, Wang X, Jiang Q, Jiang H, Huang XJ, Qin YZ. High WT1 expression predicted induction chemotherapy failure in acute myeloid leukemia patients with non-favorable cytogenetic risk. Clin Exp Med 2023; 23:2629-2638. [PMID: 36637581 DOI: 10.1007/s10238-023-00995-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/08/2023] [Indexed: 01/14/2023]
Abstract
The prognostic significance of WT1 expression at diagnosis in acute myeloid leukemia (AML) remains obscure, and subgroup analysis is the way for clarification. We previously reported the results in t(8;21) AML. In this study, 437 consecutive adult AML patients with non-favorable cytogenetic risk were enrolled. All patients were tested WT1 transcript levels using real-time quantitative PCR at diagnosis; AML-related common fusion genes, KMT2A-PTD, FLT3-ITD, NPM1, CEBPA and TP53 mutations were simultaneously tested. 92.4% of patients overexpressed WT1 compared to normal bone marrow. The existence of FLT3-ITD, NPM1 mutation and the absence of CEBPA biallelic mutation were significantly related to higher WT1 expression. The cutoff value for WT1 was determined by performing receiver operating characteristic curve analysis in regard to complete remission (CR) achievement and was used to categorize patients into low-expression (WT1-L) and high-expression (WT1-H) groups. In the entire cohort, WT1-H was significantly associated with a lower 1-course and 2-course CR rate (P < 0.0010 and P = 0.0060) but was not related to relapse-free survival (RFS). Multivariate analysis showed that WT1-H was an independent adverse prognostic factor for both 1-course and 2-course CR achievement. Subgroup analysis was further performed. WT1-H had a significant adverse impact on CR achievement within intermediate-cytogenetic risk, high-cytogenetic risk, ELN-defined-intermediate-risk, normal karyotype, KMT2A rearrangement, FAB-M2, FAB-M5 and NPM1 mutation (+) subgroups, whereas it had no impact within ELN-defined-low-risk, ELN-defined-high-risk, FAB-M4, FLT3-ITD mutation (+) and CEBPA biallelic mutation (+) subgroups. Moreover, WT1-H patients had a significantly lower RFS rate than WT1-L patients within both FAB-M5 and KMT2A rearrangement subgroups (P = 0.010 and 0.028), whereas WT1 had no impact on RFS within other subgroups mentioned above (all P > 0.05). Therefore, high WT1 expression at diagnosis independently predicted induction chemotherapy failure in AML patients with non-favorable cytogenetic risk, and it was related to relapse just within FAB-M5 and KMT2A rearrangement subgroups.
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Affiliation(s)
- Nan Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Wen-Min Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Ling-Di Li
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Ling-Yu Long
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Xu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Qian Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Hao Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China
| | - Ya-Zhen Qin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, No. 11 Xizhimen South Street, Xicheng District, Beijing, China.
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Lee JH, Cho BS, Kwag D, Min GJ, Park SS, Park S, Yoon JH, Lee SE, Eom KS, Kim YJ, Lee S, Min CK, Cho SG, Lee JW, Kim HJ. Haploidentical versus Double-Cord Blood Stem Cells as a Second Transplantation for Relapsed Acute Myeloid Leukemia. Cancers (Basel) 2023; 15:cancers15020454. [PMID: 36672403 PMCID: PMC9856318 DOI: 10.3390/cancers15020454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/23/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023] Open
Abstract
There are limited data on second stem cell transplantation (SCT2) outcomes with alternative donors for relapsed AML after the first stem cell transplantation (SCT1). We analyzed the outcomes of 52 adult AML patients who received SCT2 from haploidentical donors (HIT, N = 32) and double-cord blood (dCBT, N = 20) between 2008 and 2021. The HIT group received T-cell-replete peripheral blood stem cells after reduced-toxicity conditioning with anti-thymocyte globulin (ATG), while the dCBT group received myeloablative conditioning. For a median follow-up of 64.9 months, the HIT group, compared to the dCBT group, had earlier engraftment, superior 2-year overall survival (OS), disease-free survival (DFS), and non-relapse mortality (NRM) with similar relapse. Multivariate analysis demonstrated that HIT was significantly associated with better OS, DFS, and lower NRM than dCBT. Both longer remission duration after SCT1 and complete remission at SCT2 were significantly associated with a lower relapse rate. In addition, bone marrow WT1 measurable residual disease (MRD) positivity was significantly associated with inferior OS and higher relapse. This study suggests that T-cell-replete HIT with ATG-based GVHD prophylaxis may be preferred over dCBT as SCT2 for relapsed AML and that WT1-MRD negativity may be warranted for better SCT2 outcomes.
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Affiliation(s)
- Jong-Hyuk Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Byung-Sik Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Daehun Kwag
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Gi-June Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung-Soo Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Silvia Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jae-Ho Yoon
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Sung-Eun Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Ki-Seong Eom
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Yoo-Jin Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seok Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Chang-Ki Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Seok-Goo Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Jong-Wook Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
| | - Hee-Je Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Correspondence: ; Tel.: +82-2-2258-6054; Fax: +82-2-599-3589
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Ciurea SO, Kothari A, Sana S, Al Malki MM. The mythological chimera and new era of relapse prediction post-transplant. Blood Rev 2023; 57:100997. [PMID: 35961800 DOI: 10.1016/j.blre.2022.100997] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 07/13/2022] [Accepted: 07/21/2022] [Indexed: 01/28/2023]
Abstract
Allogeneic hemopoietic stem cell transplantation is the treatment of choice for high-risk or relapsed acute leukemia. However, unfortunately, relapse post-transplant continues to be the most common cause of treatment failure with 20-80% of patients relapsing based on disease risk and status at transplant. Advances in molecular profiling of different hematological malignancies have enabled us to monitor low level disease before and after transplant and develop a more personalized approach to the management of these disease including early detection post-transplant. While, in general, detectable disease by morphology remains the gold standard to diagnosing relapse, multiple approaches have allowed detection of cancer cells earlier, using peripheral blood-based methods with sensitivities as high as 1:106, together called minimal/measurable residual disease (MRD) detection. However, a in significant number of patients with acute leukemia where no such molecular markers exist it remains challenging to detect early relapse. In such patients who receive transplantation, chimerism monitoring remains the only option. An increase in mixed chimerism in post allogeneic HCT patients has been correlated with relapse in multiple studies. However, chimerism monitoring, while commonly accepted as a tool for assessing engraftment, has not been routinely used for relapse detection, at least in part because of the lack of standardized, high sensitivity, reliable methods for chimerism detection. In this paper, we review the various methods employed for MRD and chimerism detection post-transplant and discuss future trends in MRD and chimerism monitoring from the viewpoint of the practicing transplant physician.
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Affiliation(s)
- Stefan O Ciurea
- University of California Irvine, Orange, CA, United States of America.
| | | | - Sean Sana
- CareDx Inc., Brisbane, CA, United States of America
| | - Monzr M Al Malki
- City of Hope National Medical Center, Duarte, CA, United States of America
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Venetoclax with decitabine versus decitabine monotherapy in elderly acute myeloid leukemia: a propensity score-matched analysis. Blood Cancer J 2022; 12:169. [PMID: 36529771 PMCID: PMC9760636 DOI: 10.1038/s41408-022-00770-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/07/2022] [Accepted: 12/07/2022] [Indexed: 12/23/2022] Open
Abstract
Venetoclax (VEN) combined with azacitidine (AZA) or decitabine (DEC) has been approved for older adults with acute myeloid leukemia (AML) unfit for intensive chemotherapy based on the pivotal VIALE-A trial. However, this trial only compared AZA + VEN with AZA monotherapy. Therefore, we compared the outcomes of consecutive older adults (65 years or older) with newly diagnosed AML who received DEC (n = 230) or DEC + VEN (n = 74) after propensity score matching to construct a one-to-one matched cohort by the nearest neighbor algorithm. The median overall survival was longer in the DEC + VEN group than in the DEC group (13.4 months vs. 8.3 months, p = 0.01). The median event-free survivals were 8.6 and 5.8 months in the DEC + VEN and DEC groups, respectively (p = 0.02). The response rate (complete response, complete response with incomplete hematologic recovery, and morphologic leukemia-free state) was significantly higher in the DEC + VEN group than in the DEC group (70.3% vs. 24.3%, p < 0.01). The 30-day (2.7% vs. 9.5%, p = 0.17) and 60-day (9.5% vs. 18.9%, p = 0.16) mortality rates did not differ between the two groups, nor did the median hospitalization and transfusion rates (hospitalization: 23 days vs. 21 days, p = 0.20; red blood cells: 3.2 units/month vs. 3.5 units/month, p = 0.73; platelets: 2.7 units/month vs. 2.3 units/months, p = 0.48). Of those who received DEC + VEN and became leukemia-free, 29% underwent allogeneic stem cell transplantation and had excellent survival outcomes (one-year survival: 79.4%; one-year non-relapse mortality: 13.3%). This study is the first to provide real-world evidence that DEC + VEN has superior outcomes to DEC monotherapy.
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Chiusolo P, Metafuni E, Minnella G, Giammarco S, Bellesi S, Rossi M, Sorà F, Limongiello MA, Frioni F, Piccirillo N, Bianchi M, Valentini CG, Teofili L, Sica S, Bacigalupo A. Day +60 WT1 assessment on CD34 selected bone marrow better predicts relapse and mortality after allogeneic stem cell transplantation in acute myeloid leukemia patients. Front Oncol 2022; 12:994366. [PMID: 36119469 PMCID: PMC9471009 DOI: 10.3389/fonc.2022.994366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 08/12/2022] [Indexed: 12/05/2022] Open
Abstract
The aim of this study was to evaluate the role of WT1 expression after allogeneic stem cell transplantation (alloHSCT) in patients with acute myeloid leukemia (AML). We studied WT1 expression in bone marrow cells from 50 patients in complete remission on day +60 after transplant. WT1 was assessed on unfractionated bone marrow mononuclear cells (MNC) and on CD34+ selected cells (CD34+). A ROC curve analysis identified 800 WT1 copies on CD34+ selected cells, as the best cut-off predicting relapse (AUC 0.842, p=0.0006, 85.7% sensitivity and 81.6% specificity) and 100 copies in MNC (AUC 0.819, p=0.007, 83.3% sensitivity and 88.2% specificity). Using the 800 WT1 copy cut off in CD34+ cells, the 2 year cumulative incidence of relapse was 12% vs 38% (p=0.005), and 2 year survival 88% vs 55% (p=0.02). Using the 100 WT1 copy cut off in unfractionated MNC, the 2 year cumulative incidence of relapse 13% vs 44% (p=0.01) and the 2 year survival 88% vs 55% (p=0.08). In a multivariate Cox analysis WT1 expression in CD34 cells proved to highly predictive of relapse (p=0.004); also WT1 expression on unfractionated cells predicted relapse (p=0.03). In conclusion, day-60 WT1 expression after allogeneic HSCT is a significant predictor of relapse, particularly when tested on CD34+ selected bone marrow cells.
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Affiliation(s)
- Patrizia Chiusolo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
- *Correspondence: Patrizia Chiusolo,
| | - Elisabetta Metafuni
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Gessica Minnella
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Sabrina Giammarco
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Silvia Bellesi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Monica Rossi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Federica Sorà
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria Assunta Limongiello
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Filippo Frioni
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Nicola Piccirillo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria Bianchi
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Caterina Giovanna Valentini
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
| | - Luciana Teofili
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Simona Sica
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Bacigalupo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario “A. Gemelli” Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Rome, Italy
- Sezione di Ematologia, Dipartimento di Scienze Radiologiche ed Ematologiche, Università Cattolica del Sacro Cuore, Rome, Italy
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9
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Depth of Response to Intensive Chemotherapy Has Significant Prognostic Value among Acute Myeloid Leukemia (AML) Patients Undergoing Allogeneic Hematopoietic Stem-Cell Transplantation with Intermediate or Adverse Risk at Diagnosis Compared to At-Risk Group According to European Leukemia Net 2017 Risk Stratification. Cancers (Basel) 2022; 14:cancers14133199. [PMID: 35804971 PMCID: PMC9265052 DOI: 10.3390/cancers14133199] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/23/2022] [Accepted: 06/27/2022] [Indexed: 02/05/2023] Open
Abstract
We evaluated the prognostic efficiency of the European Leukemia Net (ELN) 2017 criteria on the post-transplant outcomes of 174 patients with intermediate (INT; n = 108, 62%) or adverse (ADV) risk (n = 66, 38%) of acute myeloid leukemia; these patients had received the first allogeneic hematopoietic stem-cell transplantation (HSCT) at remission. After a median follow-up period of 18 months, the 2 year OS, RFS, and CIR after HSCT were estimated to be 58.6% vs. 64.4% (p = 0.299), 50.5% vs. 53.7% (p = 0.533), and 26.9% vs. 36.9% (p = 0.060) in the INT and ADV risk groups, respectively. Compared to the ELN 2017 stratification, pre-HSCT WT1 levels (cutoff: 250 copies/104 ABL) more effectively segregated the post-HSCT outcomes of INT risk patients compared to ADV risk patients regarding their 2 year OS (64.2% vs. 51.5%, p = 0.099), RFS (59.4% vs. 32.4%, p = 0.003), and CIR (18.9% vs. 60.0% p < 0.001). Indeed, high WT1 levels were more prominent in INT risk patients than in ADV risk patients. Notably, FLT3-ITD had the greatest impact on post-HSCT outcomes among all the ELN 2017 criteria components; patients in the FLT3-ITD mutant subgroups exhibited the worst outcomes regardless of their allelic ratios or NPM1 status compared to the pre-HSCT WT1 level of other INT and ADV risk patients.
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10
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The Role of Wilms' Tumor Gene (WT1) Expression as a Marker of Minimal Residual Disease in Acute Myeloid Leukemia. J Clin Med 2022; 11:jcm11123306. [PMID: 35743376 PMCID: PMC9225390 DOI: 10.3390/jcm11123306] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/02/2022] [Accepted: 06/07/2022] [Indexed: 12/17/2022] Open
Abstract
The Minimal Residual Disease(MRD) monitoring in acute myeloid leukemia (AML) is crucial to guide treatment after morphologic complete remission, to define the need for consolidation with allogeneic stem cell transplantation (Allo-SCT), and to detect impending relapse allowing early intervention. However, more than 50% of patients with AML lack a specific or measurable molecular marker to monitor MRD. We reviewed the key studies on WT1 overexpression as a marker of MRD in AML patients undergoing an intensive chemotherapy program, including Allo-SCT. In addition, we provided some practical considerations on how to properly use WT1 expression as an MRD marker, considering its strengths and weaknesses. In order to achieve the best sensitivity and specificity, it is recommended to refer to the standardized method of European LeukemiaNet and its defined threshold (250 WT1 copies/104 Abelson (ABL) on Bone Marrow-BM and 50 WT1 copies/104 ABL on Peripheral Blood-PB), which has been validated in a large and multicenter cohort of patients and normal controls.
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11
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Fibbe W, Bernardi R, Charbord P, Krause D, Lo Celso C, Méndez-Ferrer S, Mummery C, Oostendorp R, Raaijmakers M, Socié G, Staal F, Bacigalupo A. The EHA Research Roadmap: Hematopoietic Stem Cells and Allotransplantation. Hemasphere 2022; 6:e0714. [PMID: 35509429 PMCID: PMC9061153 DOI: 10.1097/hs9.0000000000000714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 03/30/2022] [Indexed: 11/27/2022] Open
Affiliation(s)
- Willem Fibbe
- Department of Internal Medicine and Nephrology, Leiden University Medical Center. Leiden, the Netherlands
| | - Rosa Bernardi
- IRCCS San Raffaele Scientific Institute, Milan, Italy
| | | | - Daniela Krause
- Goethe University Frankfurt and Georg-Speyer-Haus, Frankfurt am Main, Germany
| | - Cristina Lo Celso
- Department of Life Sciences and Centre for Haematology, Imperial College London, United Kingdom
| | | | - Christine Mummery
- Department of Anatomy & Embryology, Leiden University Medical Center, Leiden, the Netherlands
| | - Robert Oostendorp
- Department of Internal Medicine III, Technical University of Munich, School of Medicine, Munich, Germany
| | | | - Gerard Socié
- Hospital Saint Louis, APHP & University of Paris, France
| | - Frank Staal
- Department of Immunology, Leiden University Medical Center, Leiden, the Netherlands
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12
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Austin AE, Byrne M. Detecting and preventing post-hematopoietic cell transplant relapse in AML. Curr Opin Hematol 2021; 28:380-388. [PMID: 34534984 DOI: 10.1097/moh.0000000000000686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Relapsed disease is the primary cause of mortality for acute myeloid leukemia (AML) patients after allogeneic hematopoietic cell transplantation (HCT). This review outlines the most recent advances in the detection and prevention of AML relapse following allogeneic HCT. RECENT FINDINGS Conventional methods for predicting post-HCT relapse rely on the molecular and cytogenetics features present at diagnosis. These methods are slow to reflect a growing understanding of the molecular heterogeneity of AML and impact of new therapies on post-HCT outcomes. The use of measurable residual disease (MRD) techniques, including multiparameter flow cytometry and molecular testing, may improve the prognostic ability of these models and should be incorporated into post-HCT surveillance whenever possible.In the post-HCT setting, FLT3 inhibitor maintenance data indicate that effective therapies can improve post-HCT outcomes. Maintenance data with DNA methyltransferase inhibitor monotherapy is less compelling and outcomes may improve with combinations. Early interventions directed at preemptive management of MRD may further improve post-HCT outcomes. SUMMARY Post-HCT AML relapse prevention has evolved to include more sensitive measures of disease detection and novel therapies that may improve outcomes of poor-risk AML patients. Additional work is needed to maintain this progress.
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Affiliation(s)
| | - Michael Byrne
- Vanderbilt University School of Medicine, Nashville, Tennessee, USA
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13
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Yu T, Chi J, Wang L. Clinical values of gene alterations as marker of minimal residual disease in non-M3 acute myeloid leukemia. Hematology 2021; 26:848-859. [PMID: 34674615 DOI: 10.1080/16078454.2021.1990503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Acute myeloid leukemia (AML) is a malignant disease of the hematopoietic system. Residual leukemic cells after treatment are associated with relapse. Thus, detecting minimal residual disease (MRD) is significant. Major techniques for MRD assessment include multiparameter flow cytometry (MFC), polymerase chain reaction (PCR), and next-generation sequencing (NGS). At a molecular level, AML is the consequence of collaboration of several gene alterations. Some of these gene alterations can also be used as MRD markers to evaluate the level of residual leukemic cells by PCR and NGS. However, when as MRD markers, different gene alterations have different clinical values. This paper aims to summarize the characteristics of various MRD markers, so as to better predict the clinical outcome of AML patients and guide the treatment.
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Affiliation(s)
- Tingyu Yu
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
| | - Jianxiang Chi
- Center for the Study of Hematological Malignancies, Nicosia, Cyprus
| | - Li Wang
- Department of Hematology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, People's Republic of China
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14
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Park S, Kim TY, Lee JH, Lee JY, Min GJ, Park SS, Yahng SA, Shin SH, Yoon JH, Lee SE, Cho BS, Eom KS, Lee S, Kim HJ, Min CK, Lee JW, Kim YJ. Differential effects of donor lymphocyte infusion upon treatment response and GVHD according to relapse level and donor sources in patients with myelodysplastic syndrome. Ther Adv Hematol 2021; 12:20406207211043748. [PMID: 34589195 PMCID: PMC8474341 DOI: 10.1177/20406207211043748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 08/13/2021] [Indexed: 11/17/2022] Open
Abstract
INTRODUCTION Donor lymphocyte infusion (DLI) is one of the effective options for post-transplant disease control of myelodysplastic syndrome (MDS). Its success or failure depends on the induction of antitumor immune reactions, durability of clinical responses, and severity of unwanted toxicities mainly from graft-versus-host disease (GVHD). METHODS By analyzing 61 patients receiving DLI for post-transplant MDS relapse, we assessed treatment outcomes and affecting factors, especially focusing on the level of relapse (hematological, molecular, and imminent relapse). RESULTS The response rate (42.1%, 36.4%, 72.7%), and overall survival (OS) at 2 years (27.8%, 45.5%, 70.1%) were different for each relapse level with imminent relapse group showing the most promising results. For OS, response to DLI or pre-DLI chemotherapy, and time to relapse were independent prognostic factors. Meanwhile, post-DLI GVHD and time to relapse were independently predictive for DLI response; post-DLI GVHD was predictive for DLI response, but not for OS, suggesting a potential detrimental impact of GVHD on survival. The incidence of GVHD and GVHD-related deaths were 37.7% and 10.0%, respectively, and CD3+ cell doses triggering GVHD tended to be lower in cases with haploidentical donor or imminent relapse. CONCLUSION Despite being limited by small number of cases and its retrospective nature, this study again demonstrated the therapeutic effects of DLI in relapsed MDS, and that earlier detection and intervention at lower level relapse might possibly be associated with better results. Furthermore, we propose that tailored cell dosing schedule based on relapse level and donor source may be helpful in minimizing fatal GVHD.
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Affiliation(s)
- Silvia Park
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Tong Yoon Kim
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Jong Hyuk Lee
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Joon yeop Lee
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Gi June Min
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Sung Soo Park
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Seung-Ah Yahng
- Department of Hematology, Incheon St. Mary’s
Hospital, College of Medicine, The Catholic University of Korea, Incheon,
Korea
| | - Seung-Hwan Shin
- Department of Hematology, Eunpyeong St. Mary’s
Hospital, College of Medicine, The Catholic University of Korea, Seoul,
Korea
| | - Jae-Ho Yoon
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Sung-Eun Lee
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Byung Sik Cho
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
- Leukemia Research Institute, College of
Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki-Seong Eom
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
- Leukemia Research Institute, College of
Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seok Lee
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
- Leukemia Research Institute, College of
Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hee-Je Kim
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
- Leukemia Research Institute, College of
Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chang-Ki Min
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
- Leukemia Research Institute, College of
Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Wook Lee
- Department of Hematology, Seoul St. Mary’s
Hematology Hospital, College of Medicine, The Catholic University of Korea,
Seoul, Korea
| | - Yoo-Jin Kim
- Department of Hematology, Seoul St. Mary’s
Hospital, College of Medicine, The Catholic University of Korea, 222
Banpo-Daero, Seocho-Gu, Seoul 06591, Korea
- Leukemia Research Institute, College of
Medicine, The Catholic University of Korea, Seoul, Korea
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15
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Cho BS, Yahng SA, Min GJ, Park S, Park SS, Shin SH, Jeon YW, Yoon JH, Lee SE, Eom KS, Kim YJ, Lee S, Min CK, Cho SG, Kim DW, Lee JW, Kim M, Kim Y, Kim HJ. Comparable Outcomes After Alternative and Matched Sibling Donor Hematopoietic Stem Cell Transplantation and the Role of Molecular Measurable Residual Disease for Acute Myeloid Leukemia in Elderly Patients. Transplant Cell Ther 2021; 27:774.e1-774.e12. [PMID: 34082159 DOI: 10.1016/j.jtct.2021.05.024] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/06/2021] [Accepted: 05/24/2021] [Indexed: 11/25/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) remains the most effective postremission therapy conferring the chance of cure for acute myeloid leukemia (AML), including elderly patients. Although the number of transplantations for elderly patients with AML (eAML) is increasing owing to greater availability of various graft sources together with the adoption of advanced supportive care and reduced-intensity conditioning (RIC) regimen, there are relatively limited data on the impact of donor type in eAML compared to younger patients. In addition, few studies have evaluated the role of pretransplantation measurable residual disease (MRD) in the elderly population. Given the lack of prospective comparative study, we retrospectively compared transplantation outcomes of elderly patient with AML receiving allo-HSCT from matched sibling donor (MSD-HSCT), matched unrelated donor (MUD-HSCT) or haploidentical related donor (Haplo-HSCT), or autologous HSCT (Auto-HSCT). A total of 154 patients with a median age of 63 years (range 60-74) underwent MSD-HSCT (n = 41), MUD-HSCT (n = 36), Haplo-HSCT (n = 55), or Auto-HSCT (n = 22) for AML. RIC regimens were used in the majority of patients. In Haplo-HSCT, T-cell-replete peripheral blood stem cells with unique RIC regimens using anti-thymocyte globulin (ATG)-based GVHD prophylaxis was used. In the analysis, adjustment for MRD status at the time of transplantation was performed. MRD was measured by the quantitative molecular assays of the targets, including RUNX1-RUNX1T1, CBFB-MYH11, and NPM1, or WT1 in the absence of abnormalities in the aforementioned targets. At a median follow-up of 48 months, survival rates were similar between different donor types, whereas nonrelapse mortality (NRM) was lower in MUD-HSCT compared to MSD-HSCT (P = .002). MSD-HSCT, in which the majority of patients received a conditioning regimen not including ATG, showed more frequent severe chronic graft-versus-host disease (cGVHD). The major causes of non-relapse deaths in MSD-HSCT were related to cGVHD (71%), whereas infectious complications were mainly related to NRM in Haplo-HSCT (50%) or Auto-HSCT (100%). In the MUD-HSCT, GVHD (57%) and infection (43%) contributed similarly to non-relapse death. Cytomegalovirus infection was more frequent in Haplo-HSCT. In multivariate models, pre-transplant MRD-positivity was an independent risk factor for relapse (P = .001), whereas older age (P = .002) and the hematopoietic cell transplantation-comorbidity index (P = .009) were useful in predicting NRM. The current study demonstrated comparable outcomes after alternative and matched sibling donor HSCT in eAML aged 60 years or older, and the results also suggest the necessity for more sophisticated strategies to reduce NRM or relapse according to each donor type. The usefulness of molecular MRD assays demonstrated herein will facilitate trials for MRD-driven decision-making or risk-adaptive approaches in eAML.
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Affiliation(s)
- Byung-Sik Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Ah Yahng
- Department of Hematology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Gi-June Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Silvia Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Soo Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seung-Hwan Shin
- Department of Hematology, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young-Woo Jeon
- Department of Hematology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae-Ho Yoon
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sung-Eun Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ki-Seong Eom
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoo-Jin Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Chang-Ki Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seok-Goo Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong-Wook Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jong Wook Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Myungshin Kim
- Department of Laboratory Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yonggoo Kim
- Department of Laboratory Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hee-Je Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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16
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Mehralizadeh H, Aliparasti MR, Talebi M, Salekzamani S, Almasi S, Raeisi M, Yousefi M, Movassaghpour A. WT-1, BAALC, and ERG Expressions in Iranian Patients with Acute Myeloid Leukemia Pre- and Post-chemotherapy. Adv Pharm Bull 2021; 11:197-203. [PMID: 33747867 PMCID: PMC7961226 DOI: 10.34172/apb.2021.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 12/15/2022] Open
Abstract
Purpose: Acute myeloid leukemia (AML) is the most prevalent acute leukemia in adults. It possesses different cytogenetic and molecular features. The expression of Wilms tumor-1 (WT1), brain and acute leukemia, cytoplasmic (BAALC) and ETS-related gene (ERG) might be considered as prognostic factors in AML patients. The aim of this study was to determine the mRNA expressions of WT-1, BAALC and ERG genes in bone marrow of mononuclear cells and their effects on complete remission in the Iranian AML patients, pre- and post- chemotherapy. Methods: Forty AML patients with normal karyotype were evaluated. The mRNA gene expressions were measured with quantitative real-time PCR in bone marrow of mononuclear cells of AML patients at the baseline and after chemotherapy. The subtypes of AML and flow cytometry panel were also assessed. Complete remission (CR) after the treatment was addressed for all patients. Results: The mRNA expressions of WT-1, BAALC and ERG were significantly decreased after the treatment (p = 0.001, 0.017, 0.036). WT-1 mRNA expression was inversely correlated with CR after chemotherapy (P =0.024). There was also significant correlation between baseline expression of BAALC and CR (P =0.046). No significant correlation was observed between ERG and CR pre- and post- chemotherapy (P =0.464 and 0.781). There was also significant correlation between BAALC mRNA expression and CD34+ (P <0.001). Conclusion: The present study showed that WT-1 decreased significantly after standard chemotherapy which could have favorable effects on CR. Also, the high expression of BAALC could have a poor prognostic role in AML patients. The identification of these gene expressions can be an efficient approach in targeted therapy among AML patients.
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Affiliation(s)
| | | | - Mehdi Talebi
- Department of Applied Cell Science, School of Advance Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shabnam Salekzamani
- Department of Nutrition, School of Public Health, Bushehr University of Medical Sciences, Bushehr, Iran
| | - Shohreh Almasi
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Morteza Raeisi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yousefi
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - AliAkbar Movassaghpour
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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17
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Cho B, Min G, Park S, Park S, Shin S, Yahng S, Jeon Y, Yoon J, Lee S, Eom K, Kim Y, Lee S, Min C, Cho S, Kim D, Lee JW, Kim M, Kim Y, Kim H. Haploidentical vs matched unrelated donor transplantation for acute myeloid leukemia in remission: A prospective comparative study. Am J Hematol 2021; 96:98-109. [PMID: 32905642 DOI: 10.1002/ajh.25993] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/02/2020] [Accepted: 09/04/2020] [Indexed: 01/17/2023]
Abstract
Despite comparable outcomes of haploidentical transplants (Haplo-HSCT) with HLA-matched unrelated transplants (MUD-HSCT) in retrospective comparisons, few studies have prospectively compared Haplo-HSCT with MUD-HSCT in AML. Here, we prospectively compared the outcomes of Haplo-HSCT with MUD-HSCT for AML in remission (n = 110) to prove non-inferiority of overall survival in Haplo-HSCT. Both groups were well balanced in factors related to biological features of AML and measurable residual disease (MRD) status by Wilms' tumor gene 1 (WT1) assay. A unique, reduced-toxicity preparative regimen was used for Haplo-HSCT, whereas mostly-myeloablative regimen was for MUD-HSCT. Both groups showed similar patterns of neutrophil and platelet recovery, whereas delayed T-cell reconstitution in Haplo-HSCT was found compared with MUD-HSCT. No significant differences were found in acute or chronic graft-vs-host-disease (GVHD) and post-transplant infectious events with an exception of EBV or CMV infection, which occurred more frequently in Haplo-HSCT. After a median follow-up of 47 months, no significant differences in overall survival (65% vs 54%, P = .146), disease-free survival (67% vs 53%, P = .142), relapse (20% vs 21%, P = .858), non-relapse mortality (14% vs 26%, P = .103), or GVHD-free/relapse-free survival (54% vs 41%, P = .138) were observed for Haplo-HSCT vs MUD-HSCT. In multivariate analysis, WT1 expression before transplantation independently predicted relapse, resulting in inferior survival. Separate analysis of unenrolled patients (n = 110) who were excluded or refused to participate in this study showed consistent results with enrolled patients. This prospective study demonstrated the non-inferiority of Haplo-HSCT to MUD-HSCT for AML in remission, and validated the role of WT1 quantification as an MRD marker (ClinicalTrial.gov identifier: NCT01751997).
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Affiliation(s)
- Byung‐Sik Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Gi‐June Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Silvia Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Sung‐Soo Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Seung‐Hwan Shin
- Department of Hematology, Eunpyeong St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Seung‐Ah Yahng
- Department of Hematology, Incheon St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Young‐Woo Jeon
- Department of Hematology, Yeouido St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Jae‐Ho Yoon
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Sung‐Eun Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Ki‐Seong Eom
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Yoo‐Jin Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Seok Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Chang‐Ki Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Seok‐Goo Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Dong‐Wook Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Jong Wook Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Myungshin Kim
- Department of Laboratory Medicine, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Yonggoo Kim
- Department of Laboratory Medicine, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
| | - Hee‐Je Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine The Catholic University of Korea Seoul Republic of Korea
- Leukemia Research Institute, College of Medicine The Catholic University of Korea Seoul Republic of Korea
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18
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How I treat measurable (minimal) residual disease in acute leukemia after allogeneic hematopoietic cell transplantation. Blood 2020; 135:1639-1649. [PMID: 31961921 DOI: 10.1182/blood.2019003566] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 01/18/2020] [Indexed: 12/12/2022] Open
Abstract
Although allogeneic hematopoietic cell transplantation (allo-HCT) is currently the standard curative treatment of acute leukemia, relapse remains unacceptably high. Measurable (minimal) residual disease (MRD) after allo-HCT may be used as a predictor of impending relapse and should be part of routine follow-up for transplanted patients. Patients with MRD may respond to therapies aiming to unleash or enhance the graft-versus-leukemia effect. However, evidence-based recommendations on how to best implement MRD testing and MRD-directed therapy after allo-HCT are lacking. Here, I describe our institutional approach to MRD monitoring for preemptive MRD-triggered intervention, using patient scenarios to illustrate the discussion.
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19
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Antar AI, Otrock ZK, Abou Dalle I, El-Cheikh J, Bazarbachi A. Pharmacologic Therapies to Prevent Relapse of Acute Myeloid Leukemia After Allogeneic Hematopoietic Stem Cell Transplantation. Front Oncol 2020; 10:596134. [PMID: 33224890 PMCID: PMC7667262 DOI: 10.3389/fonc.2020.596134] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 10/09/2020] [Indexed: 12/29/2022] Open
Abstract
Relapse is the main cause of mortality in patients with acute myeloid leukemia (AML) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Adverse cytogenetic or molecular risk factors, as well as refractory disease or persistent measurable residual disease (MRD) at the time of transplantation are associated with an increased risk of recurrence. Salvage therapy for AML relapse after allo-HSCT is often limited to chemotherapy, donor lymphocyte infusions and/or second transplants and is rarely successful. Effective post-transplant preventive intervention in high risk AML may be crucial. The most frequent and promising approach is the use of post-transplant maintenance with hypomethylating agents or with FLT3 tyrosine kinase inhibitors when the target is present. Moreover, IDH1/IDH2 inhibitors and BCL-2 inhibitors in combination with other strategies are promising approaches in the maintenance setting. Here we summarize the current knowledge about the preemptive and prophylactic use of pharmacologic agents after allo-HSCT to prevent relapse of AML.
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Affiliation(s)
- Ahmad I. Antar
- Almoosa Specialist Hospital, Department of Internal Medicine, Division of Hematology-Oncology, Al-Ahsa, Saudi Arabia
- Department of Hematology and Oncology, Hammoud Hospital University Medical Center, Saida, Lebanon
| | - Zaher K. Otrock
- Department of Pathology and Laboratory Medicine, Henry Ford Hospital, Detroit, MI, United States
| | - Iman Abou Dalle
- Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Jean El-Cheikh
- Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali Bazarbachi
- Bone Marrow Transplantation Program, Department of Internal Medicine, American University of Beirut Medical Center, Beirut, Lebanon
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20
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Valkova V, Vydra J, Markova M, Cerovska E, Vrana M, Marinov I, Cechova H, Cetkovsky P, Vitek A, Salek C. WT1 Gene Expression in Peripheral Blood Before and After Allogeneic Stem Cell Transplantation is a Clinically Relevant Prognostic Marker in AML - A Single-center 14-year Experience. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2020; 21:e145-e151. [PMID: 33160932 DOI: 10.1016/j.clml.2020.09.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/17/2020] [Accepted: 09/23/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND This work summarizes our experience with WT1 monitoring before and after allogeneic hematopoietic stem cell transplantation (allo-HSCT). PATIENTS AND METHODS The expression of WT1 gene was measured by real-time polymerase chain reaction in peripheral blood according to the European Leukemia Net recommendations. Between May 2005 and August 2019, we analyzed 147 consecutive patients with acute myeloid leukemia with high WT1 expression at diagnosis, transplanted in first (CR1) or second (CR2) complete remission. RESULTS At the time of allo-HSCT, 107 patients had WT1-normal expression (WT1 ≤ 50 copies), and 40 patients had WT1-high expression. The median follow-up was 21 months. The estimated 5-year overall survival and event-free survival was significantly better in the WT1-normal cohort (65% and 57% vs. 37% and 25%; P = .0003 and P < .0001, respectively) and 5-year cumulative incidence of relapse was significantly lower in the WT1-normal group (19% vs. 53%; P < .0001). Five-year non-relapse mortality was not significantly different (20% and 23%). Multivariate analysis revealed WT1-high expression and acute graft-versus-host disease grade 3/4 as significantly negative prognostic factors for OS. Overall, 49 patients developed WT1 molecular relapse in the post-transplant period; in 14 cases, the therapeutic intervention was done. In all but 1 relapsed patient where WT1 minimal residual disease (MRD) was monitored (38 patients), we detected WT1-high levels (sensitivity of 97%). CONCLUSION The results of the analysis confirmed our previous experience that WT1 status before allo-HSCT is a strong prognostic factor for both OS and relapse risk. In addition, we confirmed the usefulness of this marker for MRD monitoring after allo-HSCT. The main advantage is the possibility of frequent MRD monitoring in peripheral blood and early bone marrow examination based on WT1-high expression.
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MESH Headings
- Adult
- Aged
- Biomarkers, Tumor/blood
- Biomarkers, Tumor/metabolism
- Disease-Free Survival
- Feasibility Studies
- Female
- Follow-Up Studies
- Gene Expression Profiling
- Gene Expression Regulation, Leukemic
- Graft vs Host Disease/diagnosis
- Graft vs Host Disease/epidemiology
- Hematopoietic Stem Cell Transplantation/adverse effects
- Humans
- Incidence
- Leukemia, Myeloid, Acute/blood
- Leukemia, Myeloid, Acute/genetics
- Leukemia, Myeloid, Acute/mortality
- Leukemia, Myeloid, Acute/therapy
- Male
- Middle Aged
- Neoplasm Recurrence, Local/epidemiology
- Neoplasm Recurrence, Local/genetics
- Neoplasm, Residual
- Prognosis
- Risk Assessment/methods
- Risk Factors
- Severity of Illness Index
- WT1 Proteins/blood
- WT1 Proteins/metabolism
- Young Adult
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Affiliation(s)
- Veronika Valkova
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic.
| | - Jan Vydra
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Marketa Markova
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Ela Cerovska
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Milena Vrana
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Iuri Marinov
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Hana Cechova
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Petr Cetkovsky
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Antonin Vitek
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic
| | - Cyril Salek
- Department of Bone Marrow Transplant, Institute of Hematology and Blood Transfusion, Prague, Czech Republic; Institute of Clinical and Experimental Hematology, First Faculty of Medicine, Charles University, Prague, Czech Republic
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21
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Chen S, Zeiser R. Novel Biomarkers for Outcome After Allogeneic Hematopoietic Stem Cell Transplantation. Front Immunol 2020; 11:1854. [PMID: 33013836 PMCID: PMC7461883 DOI: 10.3389/fimmu.2020.01854] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 07/09/2020] [Indexed: 12/29/2022] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a well-established curative treatment for various malignant hematological diseases. However, its clinical success is substantially limited by major complications including graft-vs.-host disease (GVHD) and relapse of the underlying disease. Although these complications are known to lead to significant morbidity and mortality, standardized pathways for risk stratification of patients undergoing allo-HSCT are lacking. Recent advances in the development of diagnostic and prognostic tools have allowed the identification of biomarkers in order to predict outcome after allo-HSCT. This review will provide a summary of clinically relevant biomarkers that have been studied to predict the development of acute GVHD, the responsiveness of affected patients to immunosuppressive treatment and the risk of non-relapse mortality. Furthermore, biomarkers associated with increased risk of relapse and subsequent mortality will be discussed.
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Affiliation(s)
- Sophia Chen
- Department of Immunology, Memorial Sloan Kettering Cancer Center, Sloan Kettering Institute, New York, NY, United States.,Department of Medicine I, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Robert Zeiser
- Department of Medicine I, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS - Centre for Integrative Biological Signalling Studies, University of Freiburg, Freiburg, Germany
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22
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Park S, Min GJ, Park SS, Yahng SA, Jeon YW, Shin SH, Yoon JH, Lee SE, Cho BS, Eom KS, Kim YJ, Lee S, Min CK, Cho SG, Kim DW, Lee JW, Kim HJ. Comparison of Myeloablative (CyTBI, BuCy) versus Reduced-Intensity (FluBu2TBI400) Peripheral Blood Stem Cell Transplantation in Acute Myeloid Leukemia Patients with Pretransplant Low WT1 Expression. Biol Blood Marrow Transplant 2020; 26:2018-2026. [PMID: 32659434 DOI: 10.1016/j.bbmt.2020.07.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 06/30/2020] [Accepted: 07/02/2020] [Indexed: 10/23/2022]
Abstract
Relapse is a major concern with reduced-intensity conditioning. We analyzed 257 patients with acute myeloid leukemia (AML) who received allogeneic stem cell transplantation (SCT) and fulfilled the following criteria: intermediate- or poor-risk disease by National Comprehensive Cancer Network guidelines (2017, version 3), in first complete remission (CR1) at SCT, received either myeloablative conditioning (MAC; busulfan plus cyclophosphamide or cyclophosphamide plus total body irradiation) or reduced-intensity conditioning (RIC; FluBu2TBI400) peripheral blood SCT from 8/8 matched sibling or unrelated donor, and having bone marrow Wilms tumor gene 1 (WT1) expression results before transplant. We and other groups serially published a predictive value for pretransplant WT1 expression in patients with AML to identify patients at higher risk of relapse. Among the total 257 patients, 191 (74.3%) and 66 (25.7%) patients received MAC and RIC transplants, respectively. WT1 ≥250 copies/104ABL was defined as WT1high. WT1high before SCT was found to be an independent prognostic factor for inferior overall survival (OS), disease-free survival (DFS), and higher cumulative incidence of relapse (CIR). There were 201 patients with WT1 low expression based upon pretransplant analysis. There was no significant difference in OS, DFS, CIR, and nonrelapse mortality between MAC and RIC patients. To conclude, post-transplant survival or relapse was not different by conditioning intensity in AML CR1 patients whose WT1 level was below 250 copies per 104ABL at transplantation.
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Affiliation(s)
- Silvia Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Gi June Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung Soo Park
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung-Ah Yahng
- Department of Hematology, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Incheon, Korea
| | - Young-Woo Jeon
- Department of Hematology, Yeoido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seung-Hwan Shin
- Department of Hematology, Catholic Hematology Hospital, Eunpyeong St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jae-Ho Yoon
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sung-Eun Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Byung Sik Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ki-Seong Eom
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoo-Jin Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seok Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Chang-Ki Min
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seok-Goo Cho
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Dong-Wook Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong Wook Lee
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hee-Je Kim
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea; Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul, Korea.
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23
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Luo P, Jing W, Yi K, Wu S, Zhou F. Wilms' tumor 1 gene in hematopoietic malignancies: clinical implications and future directions. Leuk Lymphoma 2020; 61:2059-2067. [PMID: 32401109 DOI: 10.1080/10428194.2020.1762884] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The Wilms' tumor 1 (WT1) gene is an important regulatory molecule that plays a vital role in cell growth and development. Initially, knowledge of WT1 was mostly limited to Wilms' tumor. Over the past years, numerous studies have shown that WT1 is aberrant expressed or mutated in hematopoietic malignancies, including acute leukemia (AL), myelodysplastic syndrome (MDS) and chronic myelogenous leukemia (CML). Currently, many studies focus on exploring the role of WT1 in hematopoietic malignancies. Such studies improve the understanding of hematopoietic malignancies, and the collection of data about WT1 expression or mutation in hematopoietic malignancies over the past years can facilitate the risk stratification of hematopoietic malignancies. In this review, we highlight the important role of WT1 in hematopoietic malignancies, discuss its potential clinical applications as a minimal residual disease (MRD) and prognostic biomarker, and evaluate the possible therapy target of WT1 in hematopoietic malignancies.
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Affiliation(s)
- Ping Luo
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Wei Jing
- Department of Clinical Laboratory, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Kezhen Yi
- Department of Clinical Laboratory Medicine & Center for Gene Diagnosis, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Sanyun Wu
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Fuling Zhou
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, China
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24
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Marconi G, Talami A, Abbenante MC, Sartor C, Parisi S, Nanni J, Bertamini L, Ragaini S, Olivi M, de Polo S, Cristiano G, Fontana MC, Bochicchio MT, Ottaviani E, Arpinati M, Sessa M, Baldazzi C, Caso L, Testoni N, Baccarani M, Bonifazi F, Martinelli G, Paolini S, Cavo M, Papayannidis C, Curti A. MEC (mitoxantrone, etoposide, and cytarabine) induces complete remission and is an effective bridge to transplant in acute myeloid leukemia. Eur J Haematol 2020; 105:47-55. [DOI: 10.1111/ejh.13406] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 03/02/2020] [Accepted: 03/04/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Giovanni Marconi
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Annalisa Talami
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Maria Chiara Abbenante
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
- Department of Haematology and Stem Cell Transplantation Unit IRCCS “Casa Sollievo della Sofferenza” Hospital San Giovanni Rotondo Italy
| | - Chiara Sartor
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Sarah Parisi
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Jacopo Nanni
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Luca Bertamini
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
- Division of Hematology AOU Città della Salute e della Scienza di Torino Torino Italy
| | - Simone Ragaini
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Matteo Olivi
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Stefano de Polo
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Gianluca Cristiano
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Maria Chiara Fontana
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Maria Teresa Bochicchio
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS Meldola Italy
| | - Emanuela Ottaviani
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Mario Arpinati
- Department of Hematology and Oncology Institute of Hematology L. e A. Seràgnoli Azienda Ospedaliero‐Universitaria S. Orsola Malpighi Bologna Italy
| | - Mariarosaria Sessa
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Carmen Baldazzi
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Lucia Caso
- Department of Hematology and Oncology Institute of Hematology L. e A. Seràgnoli Azienda Ospedaliero‐Universitaria S. Orsola Malpighi Bologna Italy
| | - Nicoletta Testoni
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Michele Baccarani
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Francesca Bonifazi
- Department of Hematology and Oncology Institute of Hematology L. e A. Seràgnoli Azienda Ospedaliero‐Universitaria S. Orsola Malpighi Bologna Italy
| | - Giovanni Martinelli
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
- Istituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori (IRST) IRCCS Meldola Italy
| | - Stefania Paolini
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Michele Cavo
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Cristina Papayannidis
- Department of Experimental, Diagnostic and Specialty Medicine Institute of Hematology "L. and A. Seràgnoli" University of Bologna Bologna Italy
| | - Antonio Curti
- Department of Hematology and Oncology Institute of Hematology L. e A. Seràgnoli Azienda Ospedaliero‐Universitaria S. Orsola Malpighi Bologna Italy
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25
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Is There Still a Role for Autologous Stem Cell Transplantation for the Treatment of Acute Myeloid Leukemia? Cancers (Basel) 2019; 12:cancers12010059. [PMID: 31878297 PMCID: PMC7016672 DOI: 10.3390/cancers12010059] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 12/12/2022] Open
Abstract
After intensive induction chemotherapy and complete remission achievement, patients with acute myeloid leukemia (AML) are candidates to receive either high-dose cytarabine-based regimens, or autologous (ASCT) or allogeneic (allo-SCT) hematopoietic stem cell transplantations as consolidation treatment. Pretreatment risk classification represents a determinant key of type and intensity of post-remission therapy. Current evidence indicates that allo-SCT represents the treatment of choice for high and intermediate risk patients if clinically eligible, and its use is favored by increasing availability of unrelated or haploidentical donors. On the contrary, the adoption of ASCT is progressively declining, although numerous studies indicate that in favorable risk AML the relapse rate is lower after ASCT than chemotherapy. In addition, the burden of supportive therapy and hospitalization favors ASCT. In this review, we summarize current indications (if any) to ASCT on the basis of molecular genetics at diagnosis and minimal residual disease evaluation after induction/consolidation phase. Finally, we critically discuss the role of ASCT in older patients with AML and acute promyelocytic leukemia.
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Qin YZ, Wang Y, Xu LP, Zhang XH, Zhao XS, Liu KY, Huang XJ. Subgroup Analysis Can Optimize the Relapse-Prediction Cutoff Value for WT1 Expression After Allogeneic Hematologic Stem Cell Transplantation in Acute Myeloid Leukemia. J Mol Diagn 2019; 22:188-195. [PMID: 31751675 DOI: 10.1016/j.jmoldx.2019.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 10/03/2019] [Indexed: 01/06/2023] Open
Abstract
High WT1 expression after allogeneic hematologic stem cell transplantation (allo-HSCT) can strongly predict relapse in acute myeloid leukemia (AML). However, the cutoff values obtained have been inconsistent. Precise cutoff values may be optimized through subtype analysis; the RUNX1-RUNX1T1 fusion transcript provides an ideal reference. RUNX1-RUNX1T1 and WT1 transcript levels were simultaneously measured in 1299 bone marrow samples serially collected from 176 t(8;21) AML patients after allo-HSCT. The upper limit of the normal bone marrow WT1 level was 0.6%, which we previously reported to be the cutoff value for significant relapse prediction in AML as a whole. WT1 cutoff values of 0.6%, 1.2%, and 1.8% significantly differentiated patients in relapse after allo-HSCT. Nonetheless, patients with WT1 levels of 0.6% to 1.2% and those with levels of >1.2% and 1.8% after HSCT had rates of cumulative incidence of relapse similar to those with a continuous WT1 level of ≤0.6%, and both were significantly lower than that in patients with a WT1 level of >1.8%. WT1 expression was significantly related to RUNX1-RUNX1T1 transcript levels at WT1 levels of >1.8% but not at levels of 0.6% to 1.2% or >1.2% to 1.8%. Therefore, subgroup analysis can optimize the relapse-prediction cutoff value of WT1 expression. A cutoff level of 1.8% more accurately differentiates t(8;21) AML patients in relapse after allo-HSCT than does a cutoff level of 0.6%.
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Affiliation(s)
- Ya-Zhen Qin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Yu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Lan-Ping Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Xiao-Hui Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Xiao-Su Zhao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Kai-Yan Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China.
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Czyz A, Nagler A. The Role of Measurable Residual Disease (MRD) in Hematopoietic Stem Cell Transplantation for Hematological Malignancies Focusing on Acute Leukemia. Int J Mol Sci 2019; 20:ijms20215362. [PMID: 31661875 PMCID: PMC6862140 DOI: 10.3390/ijms20215362] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 10/21/2019] [Accepted: 10/23/2019] [Indexed: 01/17/2023] Open
Abstract
The significance of measurable residual disease (MRD) in hematopoietic stem cell transplantation (HSCT) is well recognized in different hematological malignancies, but the evidence indicate that pre-transplant MRD status is of particular importance in acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML). In ALL, inadequate response at the level of MRD is a commonly accepted risk factor for relapse and thus an indication for allogeneic HSCT. Similarly, growing evidence from the literature strongly suggest that MRD detected by multiparameter flow cytometry or molecular techniques should be also used for risk stratification in AML at the time of HSCT. Despite the well-defined association of MRD and outcomes of HSCT in acute leukemias, there are still many open issues such as the role of additional pre-transplant consolidation for MRD eradication, the ability of HSCT to overcome negative influence of MRD positivity on survival, the impact of conditioning regimen intensity on MRD clearance post HSCT, and transplantation outcomes or the selection of optimal donor with regards to MRD status. In addition, the role of MRD assessment in guiding post-transplant maintenance treatment should also be addressed in prospective trials. These open issues mostly awaiting further clinical studies will be discussed in our current review.
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Affiliation(s)
- Anna Czyz
- Department of Hematology and Bone Marrow Transplantation, Wroclaw Medical University, Ludwik Pasteur 4, 50-367 Wroclaw, Poland.
| | - Arnon Nagler
- Hematology Division, Chaim Sheba Medical Center, Tel Hashomer, Derech Sheba 2, 52-621 Ramat Gan, Israel.
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