1
|
Sanchez MB, Vasconcelos Cordoba B, Pavlovsky C, Moiraghi B, Varela A, Custidiano R, Fernandez I, Freitas MJ, Ventriglia MV, Bendek G, Mariano R, Mela Osorio MJ, Pavlovsky MA, García de Labanca A, Foncuberta C, Giere I, Vera M, Juni M, Mordoh J, Sanchez Avalos JC, Levy EM, Bianchini M. In-depth characterization of NK cell markers from CML patients who discontinued tyrosine kinase inhibitor therapy. Front Immunol 2023; 14:1241600. [PMID: 37818372 PMCID: PMC10561287 DOI: 10.3389/fimmu.2023.1241600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 09/07/2023] [Indexed: 10/12/2023] Open
Abstract
Introduction Treatment-free remission (TFR) in patients with chronic myeloid leukemia in chronic phase is considered a safe option if suitable molecular monitoring is available. However, the question arises as to which factors can contribute to the maintenance of TFR, and immunologic surveillance of the remaining leukemic cells is believed to be one of them. Argentina Stop Trial is an open-label, single-arm, multicenter trial assessing TFR after tyrosine kinase inhibitors interruption, that after more than 4 years showed a successful TFR rate of 63%. Methods In this context, we set up an immunological study by flow cytometry in order to analyze specific NK cell subsets from peripheral blood patient samples both at the time of discontinuation as well as during the subsequent months. Results At the time of discontinuation, patients show a mature NK cell phenotype, probably associated to TKI treatment. However, 3 months after discontinuation, significant changes in several NK cell receptors occurred. Patients with a higher proportion of CD56dim NK and PD-1+ NK cells showed better chances of survival. More interestingly, non-relapsing patients also presented a subpopulation of NK cells with features associated with the expansion after cytomegalovirus infection (expression of CD57+NKG2C+), and higher proportion of NKp30 and NKp46 natural cytotoxicity receptors, which resulted in greater degranulation and associated with better survival (p<0.0001). Discussion This NK cell subset could have a protective role in patients who do not relapse, thus further characterization could be useful for patients in sustained deep molecular response.
Collapse
Affiliation(s)
- María Belén Sanchez
- Centro de Investigaciones Oncológicas, Fundación Cáncer (CIO-FUCA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Bianca Vasconcelos Cordoba
- Centro de Investigaciones Oncológicas, Fundación Cáncer (CIO-FUCA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Carolina Pavlovsky
- Hematology Department, Fundación para combatir la leucemia (FUNDALEU), Buenos Aires, Argentina
| | - Beatriz Moiraghi
- Hematology Department, Hospital José María Ramos Mejía, Buenos Aires, Argentina
| | - Ana Varela
- Hematology Department, Hospital José María Ramos Mejía, Buenos Aires, Argentina
| | - Rosario Custidiano
- Hematology Department, Instituto Alexander Fleming, Buenos Aires, Argentina
| | - Isolda Fernandez
- Hematology Department, Fundación para combatir la leucemia (FUNDALEU), Buenos Aires, Argentina
| | | | | | - Georgina Bendek
- Hematology Department, Hospital Italiano, Buenos Aires, Argentina
| | - Romina Mariano
- Hematology Department, Hospital San Martín, Paraná, Entre Ríos, Argentina
| | - María José Mela Osorio
- Hematology Department, Fundación para combatir la leucemia (FUNDALEU), Buenos Aires, Argentina
| | - Miguel Arturo Pavlovsky
- Hematology Department, Fundación para combatir la leucemia (FUNDALEU), Buenos Aires, Argentina
| | | | - Cecilia Foncuberta
- Hematology Department, Instituto Alexander Fleming, Buenos Aires, Argentina
| | - Isabel Giere
- Hematology Department, Fundación para combatir la leucemia (FUNDALEU), Buenos Aires, Argentina
| | - Masiel Vera
- Hematology Department, Instituto Alexander Fleming, Buenos Aires, Argentina
| | - Mariana Juni
- Hematology Department, Fundación para combatir la leucemia (FUNDALEU), Buenos Aires, Argentina
| | - José Mordoh
- Centro de Investigaciones Oncológicas, Fundación Cáncer (CIO-FUCA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | | | - Estrella Mariel Levy
- Centro de Investigaciones Oncológicas, Fundación Cáncer (CIO-FUCA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| | - Michele Bianchini
- Centro de Investigaciones Oncológicas, Fundación Cáncer (CIO-FUCA), Ciudad Autónoma de Buenos Aires, Buenos Aires, Argentina
| |
Collapse
|
2
|
Marin AM, Wosniaki DK, Sanchuki HBS, Munhoz EC, Nardin JM, Soares GS, Espinace DC, de Holanda Farias JS, Veroneze B, Becker LF, Costa GL, Beltrame OC, de Oliveira JC, Cambri G, Zanette DL, Aoki MN. Molecular BCR::ABL1 Quantification and ABL1 Mutation Detection as Essential Tools for the Clinical Management of Chronic Myeloid Leukemia Patients: Results from a Brazilian Single-Center Study. Int J Mol Sci 2023; 24:10118. [PMID: 37373266 DOI: 10.3390/ijms241210118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/23/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Chronic myeloid leukemia (CML) is a well-characterized oncological disease in which virtually all patients possess a translocation (9;22) that generates the tyrosine kinase BCR::ABL1 protein. This translocation represents one of the milestones in molecular oncology in terms of both diagnostic and prognostic evaluations. The molecular detection of the BCR::ABL1 transcription is a required factor for CML diagnosis, and its molecular quantification is essential for assessing treatment options and clinical approaches. In the CML molecular context, point mutations on the ABL1 gene are also a challenge for clinical guidelines because several mutations are responsible for tyrosine kinase inhibitor resistance, indicating that a change may be necessary in the treatment protocol. So far, the European LeukemiaNet and the National Comprehensive Cancer Network (NCCN) have presented international guidelines on CML molecular approaches, especially those related to BCR::ABL1 expression. In this study, we show almost three years' worth of data regarding the clinical treatment of CML patients at the Erasto Gaertner Hospital, Curitiba, Brazil. These data primarily comprise 155 patients and 532 clinical samples. BCR::ABL1 quantification by a duplex-one-step RT-qPCR and ABL1 mutations detection were conducted. Furthermore, digital PCR for both BCR::ABL1 expression and ABL1 mutations were conducted in a sub-cohort. This manuscript describes and discusses the clinical importance and relevance of molecular biology testing in Brazilian CML patients, demonstrating its cost-effectiveness.
Collapse
Affiliation(s)
- Anelis Maria Marin
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| | - Denise Kusma Wosniaki
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| | - Heloisa Bruna Soligo Sanchuki
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| | | | | | - Gabriela Silva Soares
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| | - Dhienifer Caroline Espinace
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| | | | | | | | | | | | | | - Geison Cambri
- Instituto de Biologia Molecular do Paraná (IBMP), Curitiba 81350-010, Brazil
| | - Dalila Luciola Zanette
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| | - Mateus Nóbrega Aoki
- Laboratory for Applied Science and Technology in Health, Carlos Chagas Institute, Oswaldo Cruz Foundation (Fiocruz), Curitiba 81350-010, Brazil
| |
Collapse
|
3
|
Zaninotto M, Graziani MS, Plebani M. The harmonization issue in laboratory medicine: the commitment of CCLM. Clin Chem Lab Med 2022; 61:721-731. [PMID: 36383396 DOI: 10.1515/cclm-2022-1111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 11/18/2022]
Abstract
Abstract
The analytical quality of the clinical laboratory results has shown a significant improvement over the past decades, thanks to the joint efforts of different stakeholders, while the comparability among the results produced by different laboratories and methods still presents some critical issues. During these years, Clinical Chemistry and Laboratory Medicine (CCLM) published several papers on the harmonization issue over all steps in the Total Testing Process, training an important number of laboratory professionals in evaluating and monitoring all the criticisms inherent to the pre-analytical, as well as analytical and post analytical phases: from the consensus statement on the most informative testing in emergency setting, to the prevention and detection of hemolysis or to patients identification and tube labeling procedures, as far as to different approaches to harmonize hormones measurements or to describe new reference methods or to harmonize the laboratory report. During these years the commitment of the journal, devoted to the harmonization processes has allowed to improve the awareness on the topic and to provide specific instruments to monitor the rate of errors and to improve patients safety.
Collapse
|
4
|
Treatment-free remission in patients with chronic myeloid leukemia: recommendations of the LALNET expert panel. Blood Adv 2021; 5:4855-4863. [PMID: 34438444 PMCID: PMC9153024 DOI: 10.1182/bloodadvances.2020003235] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 03/22/2021] [Indexed: 01/26/2023] Open
Abstract
Discontinuing TKIs in LA is the new goal, and LALNET TFR recommendations for CML patients are an unmet need. TFR recommendations adapted to LA needs will make discontinuation feasible and safe in real life in the region.
Tyrosine kinase inhibitors (TKIs) have dramatically changed the survival of chronic myeloid leukemia (CML) patients, and treatment-free remission (TFR) has recently emerged as a new goal of CML treatment. The aim of this work was to develop recommendations for TKI discontinuation in Latin America (LA), outside of clinical trials. A working group of CML experts from LA discussed 22 questions regarding TFR and reached a consensus for TFR recommendations in the region. TFR is indicated in patients in first chronic phase, with typical BCR-ABL transcripts, under TKI treatment of a minimum of 5 years, in sustained deep molecular response (DMR; molecular response 4.5 [MR4.5]) for 2 years. Sustained DMR must be demonstrated on at least 4 international reporting scale quantitative polymerase chain reaction (PCR) tests, separated by at least 3 months, in the immediate prior 2 years. After second-line therapy, TFR is indicated in previously intolerant, not resistant, patients. Molecular monitoring is recommended monthly for the first 6 months, every 2 to 3 months from months 7 to 12, and every 3 months during the second year, indefinitely. Treatment should be reintroduced if major molecular response is lost. Monitoring of withdrawal syndrome, glucose levels, and lipid profile is recommended after discontinuation. After TKI reintroduction, molecular monitoring is indicated every 2 to 3 months until MR4.0 achievement; later, every 3 to 6 months. For the TFR attempt, having standardized and reliable BCR-ABL PCR tests is mandatory. These recommendations will be useful for safe discontinuation in daily practice and will benefit patients who wish to stop treatment in emergent regions, in particular, with TKI-related chronic adverse events.
Collapse
|
5
|
Pagnano KB, Varela AI, Pavlovsky C, Bendit I, Funke VAM, Polo VA. Challenges in Chronic Myeloid Leukemia Management in South America. Curr Hematol Malig Rep 2021; 16:440-447. [PMID: 34655027 DOI: 10.1007/s11899-021-00654-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE OF REVIEW Chronic myeloid leukemia (CML) management in developing countries has improved in the last years, but the availability of therapeutic resources, monitoring, reimbursement, and financial issues may be a challenge and interfere with the best practices and results of CML treatment. This review points out the main challenges in CML management in South America. RECENT FINDINGS In this review, we describe the access to tyrosine kinase inhibitors and monitoring in different countries of South America. We also address the ongoing discontinuation trials, the progress, and limitations of hematopoietic stem cell transplantation in the last years. There are still many challenges for achieving the best outcomes for CML patients in South America. The continuous efforts to provide continuous education, access to tyrosine kinase inhibitors, and monitoring, providing reference centers for CML management and hematopoietic stem cell transplantation may improve patients' outcomes.
Collapse
Affiliation(s)
- Katia B Pagnano
- Centro de Hematologia E Hemoterapia, Universidade Estadual de Campinas, Campinas, SP, Brazil.
| | - Ana Ines Varela
- Hospital J.M. Ramos Mejía, Sanatorio Las Lomas, Buenos Aires, Argentina
| | | | - Israel Bendit
- Laboratory of Medical Investigation in Pathogenesis and Targeted Therapy in Onco-Immuno-Hematology (LIM/31), Department of Hematology, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de São Paulo, São Paulo, Brazil
| | - Vaneuza A M Funke
- Complexo Hospital de Clínicas, Federal University of Paraná, Curitiba, Brazil
| | - Virginia Abello Polo
- Facultad de Medicina, Fundación Universitaria de Ciencias de La Salud. Servicio de Hematología, Hospital de San José. Servicio de Hematología, Clínica del Country, Bogotá, Colombia
| |
Collapse
|