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Limsuwanachot N, Rerkamnuaychoke B, Niparuck P, Singdong R, Kongruang A, Hirunpatrawong P, Siriyakorn T, Yenchitsomanus PT, Siriboonpiputtana T. A customized mass array panel for BCR:: ABL1 tyrosine kinase domain mutation screening in chronic myeloid leukemia. J Mass Spectrom Adv Clin Lab 2023; 28:122-132. [PMID: 37128502 PMCID: PMC10148036 DOI: 10.1016/j.jmsacl.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 03/25/2023] [Accepted: 04/10/2023] [Indexed: 05/03/2023] Open
Abstract
Introduction The therapeutic strategy and management of chronic myeloid leukemia (CML) have rapidly improved with the discovery of effective tyrosine kinase inhibitors (TKIs) to target BCR::ABL1 oncoprotein. However, nearly 30% of patients develop TKI resistance due to acquired mutations on the tyrosine kinase domain (TKD) of BCR::ABL1. Methods We customized a mass array panel initially intended to detect and monitor the mutational burden of hotspot BCR::ABL1 TKD mutations accumulated in our database, including key mutations recently recommended by European LeukemiaNet. Additionally, we extended the feasibility of using the assay panel for the molecular classification of myeloproliferative neoplasms (MPNs) by incorporating primer sets specific for analyzing JAK2 V617F, MPL 515 K/L, and CALR types 1 and 2. Results We found that the developed mass array panel was superior for detecting and monitoring clinically significant BCR::ABL1 TKD mutations, especially in cases with low mutational burden and harboring compound/polyclonal mutations, compared with direct sequencing. Moreover, our customized mass array panel detected common genetic alterations in MPNs, and the findings were consistent with those of other comparable assays available in our laboratory. Conclusions Our customized mass array panel was practicably used as a routine robust assay for screening and monitoring BCR::ABL1 TKD mutations in patients with CML undergoing TKI treatment and feasible for analyzing common genetic mutations in MPNs.
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Affiliation(s)
- Nittaya Limsuwanachot
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Budsaba Rerkamnuaychoke
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Pimjai Niparuck
- Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Roongrudee Singdong
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Adcharee Kongruang
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | | | | | - Pa-thai Yenchitsomanus
- Siriraj Center of Research Excellence for Cancer Immunotherapy (SiCORE-CIT), Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Teerapong Siriboonpiputtana
- Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
- Corresponding author at: Department of Pathology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, 270 Rama VI Road, Ratchathewi, Bangkok 10400, Thailand.
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Nakasone H. Prophylactic or preemptive tyrosine kinase inhibitor therapy after allogeneic hematopoietic cell transplantation for Philadelphia chromosome-positive acute lymphoblastic leukemia. Int J Hematol 2023:10.1007/s12185-023-03556-4. [PMID: 36807259 DOI: 10.1007/s12185-023-03556-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/01/2023] [Accepted: 02/02/2023] [Indexed: 02/23/2023]
Abstract
Prevention of disease relapse after allogeneic hematopoietic cell transplantation (allo-HCT) in patients with Philadelphia chromosome-positive acute lymphoblastic leukemia remains a major concern. Maintenance therapy with tyrosine kinase inhibitors (TKIs) after allo-HCT has been used to reduce the incidence of relapse. Two main strategies are employed for using TKIs after allo-HCT: prophylactic TKI therapy, which is given before measurable residual disease (MRD) detection, and preemptive TKI therapy, which is given after MRD detection. These strategies both have advantages and disadvantages in terms of treatment efficacy, adverse events, adherence, and socioeconomic factors. In addition, many issues remain to be resolved because of the lack of large prospective studies on how to use TKIs after allo-HCT. These include indications for prophylactic and preemptive TKI therapy, timing of initiation, frequency of MRD monitoring, TKI selection, dose, and treatment duration. While the current available evidence is extremely limited, this article will discuss these issues after summarizing some representative and recent studies. It will also share a novel indicator that can be used to visualize the reversible transition between molecular relapse and remission by TKI therapy.
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Affiliation(s)
- Hideki Nakasone
- Division of Hematology, Jichi Medical University Saitama Medical Center, 1-847 Amanuma-cho Omiya-ku, Saitama, 330-8503, Japan.
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Galimberti S, Balducci S, Guerrini F, Del Re M, Cacciola R. Digital Droplet PCR in Hematologic Malignancies: A New Useful Molecular Tool. Diagnostics (Basel) 2022; 12:1305. [PMID: 35741115 PMCID: PMC9221914 DOI: 10.3390/diagnostics12061305] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/21/2022] [Accepted: 05/22/2022] [Indexed: 01/27/2023] Open
Abstract
Digital droplet PCR (ddPCR) is a recent version of quantitative PCR (QT-PCR), useful for measuring gene expression, doing clonality assays and detecting hot spot mutations. In respect of QT-PCR, ddPCR is more sensitive, does not need any reference curve and can quantify one quarter of samples already defined as "positive but not quantifiable". In the IgH and TCR clonality assessment, ddPCR recapitulates the allele-specific oligonucleotide PCR (ASO-PCR), being not adapt for detecting clonal evolution, that, on the contrary, does not represent a pitfall for the next generation sequencing (NGS) technique. Differently from NGS, ddPCR is not able to sequence the whole gene, but it is useful, cheaper, and less time-consuming when hot spot mutations are the targets, such as occurs with IDH1, IDH2, NPM1 in acute leukemias or T315I mutation in Philadelphia-positive leukemias or JAK2 in chronic myeloproliferative neoplasms. Further versions of ddPCR, that combine different primers/probes fluorescences and concentrations, allow measuring up to four targets in the same PCR reaction, sparing material, time, and money. ddPCR is also useful for quantitating BCR-ABL1 fusion gene, WT1 expression, donor chimerism, and minimal residual disease, so helping physicians to realize that "patient-tailored therapy" that is the aim of the modern hematology.
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Affiliation(s)
- Sara Galimberti
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, 56126 Pisa, Italy; (S.G.); (S.B.); (F.G.); (M.D.R.)
| | - Serena Balducci
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, 56126 Pisa, Italy; (S.G.); (S.B.); (F.G.); (M.D.R.)
| | - Francesca Guerrini
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, 56126 Pisa, Italy; (S.G.); (S.B.); (F.G.); (M.D.R.)
| | - Marzia Del Re
- Department of Clinical and Experimental Medicine, Section of Hematology, University of Pisa, 56126 Pisa, Italy; (S.G.); (S.B.); (F.G.); (M.D.R.)
| | - Rossella Cacciola
- Department of Clinical and Experimental Medicine, Section of Hemostasis, University of Catania, 95123 Catania, Italy
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Polivkova V, Benesova A, Zizkova H, Koblihova J, Curik N, Motlova E, Klamova H, Salek C, Machova Polakova K. Sensitivity and reliability of DNA-based mutation analysis by allele-specific digital PCR to follow resistant BCR-ABL1-positive cells. Leukemia 2021; 35:2419-23. [PMID: 33772144 DOI: 10.1038/s41375-021-01226-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 02/04/2021] [Accepted: 03/11/2021] [Indexed: 01/29/2023]
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Akahoshi Y, Arai Y, Nishiwaki S, Tachibana T, Shinohara A, Doki N, Uchida N, Tanaka M, Kanda Y, Shiratori S, Ozawa Y, Shono K, Katayama Y, Tanaka J, Fukuda T, Atsuta Y, Kako S. Newly proposed threshold and validation of white blood cell count at diagnosis for Philadelphia chromosome-positive acute lymphoblastic leukemia: risk assessment of relapse in patients with negative minimal residual disease at transplantation-a report from the Adult Acute Lymphoblastic Leukemia Working Group of the JSTCT. Bone Marrow Transplant 2021. [PMID: 34331021 DOI: 10.1038/s41409-021-01422-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 07/09/2021] [Accepted: 07/22/2021] [Indexed: 11/08/2022]
Abstract
White blood cell count (WBC) at diagnosis is the conventional prognostic factor in Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL). Nevertheless, little is known about the impact of WBC at diagnosis considering the minimal residual disease (MRD) status at allogeneic hematopoietic cell transplantation (HCT). We evaluated adult patients with Ph+ ALL who achieved negative-MRD and received HCT in first complete remission between 2006 and 2018. The entire cohort was temporally divided into derivation (n = 258) and validation cohorts (n = 366). Using a threshold of 15,000/μL, which was determined by a receiver operating characteristic curve analysis in the derivation cohort, high WBC was associated with an increased risk of hematological relapse in both the derivation cohort (25.3% vs. 11.6% at 7 years, P = 0.004) and the validation cohort (16.2% vs. 8.5% at 3 years, P = 0.025). In multivariate analyses, high WBC was a strong predictor of hematological relapse in the derivation cohort (HR, 2.52, 95%CI 1.32-4.80, P = 0.005) and in the validation cohort (HR, 2.32, 95%CI, 1.18-4.55; P = 0.015). In conclusion, WBC at diagnosis with a new threshold of 15,000/μL should contribute to better risk stratification in patients with negative-MRD at HCT.
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Zhang Y, Feng S. The impact of tyrosine kinase inhibitors on allogeneic hematopoietic stem cell transplantation for adult patients with Philadelphia chromosome-positive acute lymphoblastic leukemia. Leuk Res 2021; 109:106647. [PMID: 34325192 DOI: 10.1016/j.leukres.2021.106647] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 06/08/2021] [Accepted: 06/16/2021] [Indexed: 02/07/2023]
Abstract
In the tyrosine kinase inhibitor (TKI) era, allogeneic hematopoietic stem cell transplantation (allo-HSCT) is still the most potential approach for cure of adult patients with Philadelphia chromosome-positive acute lymphocytic leukemia (Ph+ ALL). TKI plus chemotherapy has strikingly increased response rates and depth of response, and facilitated allo-HSCT, which decreases relapse and improves survival eventually. Meanwhile, for those with older age or comorbidities at diagnosis, TKI in combination with reduced-intensity chemotherapy or chemotherapy-free strategy reduces treatment-related mortality, deferred intensive chemotherapy increases molecular responses and reduced-intensity conditioning (RIC) allo-HSCT improves survival finally. Of note, according to minimal residual disease (MRD) and BCR/ABL1 kinase domain mutation screening, prophylactic or preemptive maintenance therapy with a sensitive TKI decreases relapse further. Regarding transplantation-related mortality and impaired quality of life related to complications of allo-HSCT, autologous-HSCT (auto-HSCT) among those with early and persistent molecular remission and the most potent TKI ponatinib plus intensive chemotherapy has exhibited non-inferior survival to allo-HSCT. Even so, risk-adapted strategy isn't available now. Lastly, outcomes of relapse after allo-HSCT are dismal due to TKIs exposure, and new therapeutic interventions combined with TKIs shed light on this thorny problem.
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Affiliation(s)
- Yuanfeng Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 288 Nanjing Road, Heping District, Tianjin, 300020, China; Department of Hematology, The Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, 264000, Shandong Province, China
| | - Sizhou Feng
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 288 Nanjing Road, Heping District, Tianjin, 300020, China.
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Soverini S, Bernardi S, Galimberti S. Molecular Testing in CML between Old and New Methods: Are We at a Turning Point? J Clin Med 2020; 9:E3865. [PMID: 33261150 PMCID: PMC7760306 DOI: 10.3390/jcm9123865] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 11/20/2020] [Accepted: 11/25/2020] [Indexed: 12/18/2022] Open
Abstract
Molecular monitoring of minimal residual disease (MRD) and BCR-ABL1 kinase domain (KD) mutation testing have a well consolidated role in the routine management of chronic myeloid leukemia (CML) patients, as they provide precious information for therapeutic decision-making. Molecular response levels are used to define whether a patient has an "optimal", "warning", or "failure" response to tyrosine kinase inhibitor (TKI) therapy. Mutation status may be useful to decide whether TKI therapy should be changed and which alternative TKI (or TKIs) are most likely to be effective. Real-time quantitative polymerase chain reaction (RQ-qPCR) and Sanger sequencing are currently the gold standard for molecular response monitoring and mutation testing, respectively. However, in recent years, novel technologies such as digital PCR (dPCR) and next-generation sequencing (NGS) have been evaluated. Here, we critically describe the main features of these old and novel technologies, provide an overview of the recently published studies assessing the potential clinical value of dPCR and NGS, and discuss how the state of the art might evolve in the next years.
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Affiliation(s)
- Simona Soverini
- Department of Experimental, Diagnostic and Specialty Medicine, Hematology/Oncology “Lorenzo e Ariosto Seràgnoli”, University of Bologna, 40138 Bologna, Italy;
| | - Simona Bernardi
- Department of Clinical and Experimental Sciences, University of Brescia, Bone Marrow Transplant Unit, ASST Spedali Civili, 25123 Brescia, Italy
- Centro di Ricerca Emato-Oncologica AIL (CREA), ASST Spedali Civili, 25123 Brescia, Italy
| | - Sara Galimberti
- Department of Clinical and Experimental Medicine, Hematology Unit, University of Pisa, 56126 Pisa, Italy;
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Akahoshi Y, Nishiwaki S, Arai Y, Harada K, Najima Y, Kanda Y, Shono K, Ota S, Fukuda T, Uchida N, Shiratori S, Tanaka M, Tanaka J, Atsuta Y, Kako S. Reduced-intensity conditioning is a reasonable alternative for Philadelphia chromosome-positive acute lymphoblastic leukemia among elderly patients who have achieved negative minimal residual disease: a report from the Adult Acute Lymphoblastic Leukemia Working Group of the JSHCT. Bone Marrow Transplant 2020; 55:1317-1325. [PMID: 32447350 DOI: 10.1038/s41409-020-0951-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 05/07/2020] [Accepted: 05/12/2020] [Indexed: 12/21/2022]
Abstract
Reduced-intensity conditioning (RIC) regimens have been widely used for allogeneic hematopoietic cell transplantation (HCT) in elderly patients. After the emergence of tyrosine kinase inhibitor (TKI), most patients with Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph-positive ALL) now achieve negative results for minimal residual disease (MRD) at HCT. In this study, we evaluated patients aged 50 years or more with Ph-positive ALL who received TKI before HCT, achieved negative-MRD at HCT, and underwent their first allogeneic HCT between 2008 and 2017. In total, 90 and 136 patients who received myeloablative conditioning (MAC) and a RIC regimen, respectively, were included. The median age of patients with MAC and RIC was 54 and 60 years, respectively. Even in multivariate analyses, RIC was not significantly associated with overall mortality (hazard ratio [HR], 1.09; P = 0.724), hematological relapse (HR, 1.97; P = 0.170), or non-relapse mortality (HR, 0.84; P = 0.540). Subgroup analyses suggested that RIC resulted in superior overall survival due to a lower incidence of non-relapse mortality in patients with a poor performance status or a high HCT comorbidity index. In conclusion, RIC is a reasonable option for elderly patients with negative-MRD at HCT.
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Affiliation(s)
- Yu Akahoshi
- Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan
| | - Satoshi Nishiwaki
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Yasuyuki Arai
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kaito Harada
- Department of Hematology and Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Yuho Najima
- Hematology Division, Tokyo Metropolitan Cancer and Infectious Diseases Center, Komagome Hospital, Tokyo, Japan
| | - Yoshinobu Kanda
- Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan.,Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Katsuhiro Shono
- Department of Hematology, Chiba Aoba Municipal Hospital, Chiba, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Takahiro Fukuda
- Division of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
| | - Naoyuki Uchida
- Department of Hematology, Federation of National Public Service Personnel Mutual Aid Associations Toranomon Hospital, Tokyo, Japan
| | - Souichi Shiratori
- Department of Hematology, Hokkaido University Faculty of Medicine, Sapporo, Japan
| | - Masatsugu Tanaka
- Department of Hematology, Kanagawa Cancer Center, Yokohama, Japan
| | - Junji Tanaka
- Department of Hematology, Tokyo Women's Medical University, Tokyo, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation, Nagoya, Japan
| | - Shinichi Kako
- Division of Hematology, Jichi Medical University Saitama Medical Center, Saitama, Japan.
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