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Stolpa W, Mizia-Malarz A, Zapała M, Zwiernik B. Can CD34 +CD38 - lymphoblasts, as likely leukemia stem cells, be a prognostic factor in B-cell precursor acute lymphoblastic leukemia in children? Front Pediatr 2023; 11:1213009. [PMID: 37675394 PMCID: PMC10478575 DOI: 10.3389/fped.2023.1213009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 08/01/2023] [Indexed: 09/08/2023] Open
Abstract
Background CD34+CD38- lymphoblasts as likely leukemia stem cells (LSCs) may be responsible for a worse response to treatment and may be a risk factor for recurrence in B-cell precursor acute lymphoblastic leukemia (BCP-ALL). Objective The study objective was to assess the prognostic role of CD34+CD38- lymphoblasts in bone marrow on the day of BCP-ALL diagnosis. Methods 115 patients with BCP-ALL, the median age of 4.5 years (range 1.5-17.9 years), gender: female 63 (54.8%) with BCP-ALL were enrolled; Group I (n = 90)-patients with CD34+CD38+ antigens and Group II (n = 20)-patients with CD34+CD38- antigens on the lymphoblast surface. Results A worse response on Days 8, 15, and 33 of therapy and at the end of treatment in Group II (CD34+CD38-) was more often observed but these differences were not statistically significant. A significantly higher incidence of BCP-ALL recurrence was in Group II. Conclusions 1.In BCP-ALL in children, the presence of CD34+CD38- lymphoblasts at the diagnosis does not affect the first remission.2.In BCP-ALL in children, the presence of CD34+CD38- lymphoblasts at the diagnosis may be considered an unfavorable prognostic factor for disease recurrence.3.It is necessary to further search for prognostic factors in BCP-ALL in children.
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Affiliation(s)
- Weronika Stolpa
- Department of Oncology, Hematology, and Chemotherapy, Upper Silesia Children’s Care Health Centre, Katowice, Poland
| | - Agnieszka Mizia-Malarz
- Department of Oncology, Hematology, and Chemotherapy, Upper Silesia Children’s Care Health Centre, Katowice, Poland
- Department of Pediatrics, Medical University of Silesia, Upper Silesia Children’s Care Health Centre, Katowice, Poland
| | - Magdalena Zapała
- Students’ Research Group, Department of Pediatrics, Medical University of Silesia, Katowice, Poland
| | - Bartosz Zwiernik
- Students’ Research Group, Department of Pediatrics, Medical University of Silesia, Katowice, Poland
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Zhou Y, Wai-Choi Tse E, Leung R, Cheung E, Li H, Sun H. Multiplex Single-Cell Analysis of Cancer Cells Enables Unbiased Uncovering Subsets Associated with Cancer Relapse: Heterogeneity of Multidrug Resistance in Precursor B-ALL. ChemMedChem 2021; 17:e202100638. [PMID: 34783169 DOI: 10.1002/cmdc.202100638] [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: 09/30/2021] [Revised: 11/13/2021] [Indexed: 11/08/2022]
Abstract
Earlier detection of biomarkers responsible for cancer relapse facilitates more rational cancer treatment regimens to be designed. Herein, we develop a mass cytometry-based strategy for unbiased mining of cell subsets that potentially contribute to cancer recurrence through panoramic examination of the immunophenotypic features and multidrug resistance characteristics. The incorporation of metal tags enables multiplexed information of single cells to be interrogated based on metal fingerprint. Using acute lymphoblastic leukemia (B-ALL) as a showcase, we show overexpressed multidrug resistance biomarkers, i. e., BCRP, Bcl-2, MRP1, and P-gp in B-ALL cells compared with healthy control, and a positive correlation among different multidrug resistance biomarkers. Different cell subsets with multidrug resistance are well-defined, featured with CD34+ CD38+ CD10- and CD34+ CD38+/int CD10+ . Importantly, we uncovered that CD34 expression level is positively correlated to multidrug resistance, indicative of a higher potential of immature cells to induce B-ALL relapse. In addition, the cell subsets positively expressing CD73 and CD304 (CD34+ CD10+ CD304+ ; CD34+ CD38+/int CD10+ CD73+ ) also overexpress multidrug resistance biomarkers, suggesting that they may serve as additional new biomarkers for B-ALL stratification and prognosis. Our data provide the first evidence that highly expressed multidrug resistance biomarkers in certain cell subpopulations with specific immunophenotypes may potentially induce B-ALL recurrence. The incorporation of multidrug resistance features with cell phenotypes using mass cytometry proposed in this study provides a general strategy for risk assessment and the prediction of recurrence of different types of cancers.
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Affiliation(s)
- Ying Zhou
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Eric Wai-Choi Tse
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - Rock Leung
- Department of Pathology, Queen Mary Hospital, Pokfulam Road, Hong Kong, China
| | - Edwin Cheung
- Cancer Centre, Centre of Precision Medicine Research & Training, Faculty of Health Sciences, University of Macau, Macau, China
| | - Hongyan Li
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Hongzhe Sun
- Department of Chemistry, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, The University of Hong Kong, Pokfulam Road, Hong Kong, China
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Mian AA, Zafar U, Ahmed SMA, Ottmann OG, Lalani ENMA. Oncogene-independent resistance in Philadelphia chromosome - positive (Ph +) acute lymphoblastic leukemia (ALL) is mediated by activation of AKT/mTOR pathway. Neoplasia 2021; 23:1016-1027. [PMID: 34403880 PMCID: PMC8368770 DOI: 10.1016/j.neo.2021.07.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 11/30/2022] Open
Abstract
Tyrosine kinase inhibitors (TKIs) such as imatinib, nilotinib, dasatinib, and ponatinib have significantly improved the life expectancy of Philadelphia chromosome-positive (Ph+) acute lymphocytic leukemia (ALL) patients; however, resistance to TKIs remains a major clinical challenge. Point mutations in the tyrosine kinase domain (TKD) of BCR-ABL1 have emerged as the predominant cause of acquired resistance. In approximately 30% of patients, the mechanism of resistance to TKIs remains elusive. This study aimed to investigate mechanisms of nonmutational resistance in Ph+ ALL. Here we report the development of a nonmutational resistance cell line SupB15-RT; conferring resistance to approved ABL kinase inhibitors (AKIs) and allosteric inhibitors GNF-2, ABL001, and crizotinib, except for dasatinib (IC90 50nM), a multitarget kinase inhibitor. We found that the AKT/mTOR pathway is activated in these cells and their proliferation inhibited by Torin-1 with an IC50 of 24.7 nM. These observations were confirmed using 3 different ALL patient-derived long term cultures (PDLTCs): (1) HP (BCR-ABL1 negative), (2) PH (BCR-ABL1 positive and responsive to TKIs) and (3) BV (BCR-ABL1 positive and nonmutational resistant to TKIs). Furthermore, Torin-1 and NVP-BEZ235 induced apoptosis in PH and BV cells but not in HP cells. Our experiments provide evidence of the involvement of AKT/mTOR pathway in the evolution of nonmutational resistance in Ph+ ALL which will assist in developing novel targeted therapy for Ph+ ALL patients with BCR-ABL1 independent nonmutational resistance.
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Affiliation(s)
- Afsar Ali Mian
- Centre for Regenerative Medicine and Stem Cell Research, Aga Khan University, Karachi, Pakistan.
| | - Usva Zafar
- Centre for Regenerative Medicine and Stem Cell Research, Aga Khan University, Karachi, Pakistan
| | | | | | - El-Nasir M A Lalani
- Centre for Regenerative Medicine and Stem Cell Research, Aga Khan University, Karachi, Pakistan
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Chulián S, Martínez-Rubio Á, Pérez-García VM, Rosa M, Blázquez Goñi C, Rodríguez Gutiérrez JF, Hermosín-Ramos L, Molinos Quintana Á, Caballero-Velázquez T, Ramírez-Orellana M, Castillo Robleda A, Fernández-Martínez JL. High-Dimensional Analysis of Single-Cell Flow Cytometry Data Predicts Relapse in Childhood Acute Lymphoblastic Leukaemia. Cancers (Basel) 2020; 13:cancers13010017. [PMID: 33374500 PMCID: PMC7793064 DOI: 10.3390/cancers13010017] [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: 10/26/2020] [Revised: 12/02/2020] [Accepted: 12/16/2020] [Indexed: 12/27/2022] Open
Abstract
Simple Summary B-cell Acute Lymphoblastic Leukaemia is one of the most common cancers in childhood, with 20% of patients eventually relapsing. Flow cytometry is routinely used for diagnosis and follow-up, but it currently does not provide prognostic value at diagnosis. The volume and the high-dimensional character of this data makes it ideal for its exploitation by means of Artificial Intelligence methods. We collected flow cytometry data from 56 patients from two hospitals. We analysed differences in intensity of marker expression in order to predict relapse at the moment of diagnosis. We finally correlated this data with biomolecular information, constructing a classifier based on CD38 expression. Abstract Artificial intelligence methods may help in unveiling information that is hidden in high-dimensional oncological data. Flow cytometry studies of haematological malignancies provide quantitative data with the potential to be used for the construction of response biomarkers. Many computational methods from the bioinformatics toolbox can be applied to these data, but they have not been exploited in their full potential in leukaemias, specifically for the case of childhood B-cell Acute Lymphoblastic Leukaemia. In this paper, we analysed flow cytometry data that were obtained at diagnosis from 56 paediatric B-cell Acute Lymphoblastic Leukaemia patients from two local institutions. Our aim was to assess the prognostic potential of immunophenotypical marker expression intensity. We constructed classifiers that are based on the Fisher’s Ratio to quantify differences between patients with relapsing and non-relapsing disease. We also correlated this with genetic information. The main result that arises from the data was the association between subexpression of marker CD38 and the probability of relapse.
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Affiliation(s)
- Salvador Chulián
- Department of Mathematics, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (S.C.); (Á.M.-R.); (M.R.)
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), Hospital Universitario Puerta del Mar, 11009 Cádiz, Spain
| | - Álvaro Martínez-Rubio
- Department of Mathematics, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (S.C.); (Á.M.-R.); (M.R.)
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), Hospital Universitario Puerta del Mar, 11009 Cádiz, Spain
| | - Víctor M. Pérez-García
- Department of Mathematics, Mathematical Oncology Laboratory (MOLAB), Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- Instituto de Matemática Aplicada a la Ciencia y la Ingeniería (IMACI), Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- ETSI Industriales, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
- Correspondence:
| | - María Rosa
- Department of Mathematics, Universidad de Cádiz, Puerto Real, 11510 Cádiz, Spain; (S.C.); (Á.M.-R.); (M.R.)
- Biomedical Research and Innovation Institute of Cádiz (INiBICA), Hospital Universitario Puerta del Mar, 11009 Cádiz, Spain
| | - Cristina Blázquez Goñi
- Department of Paediatric Haematology and Oncology, 11407 Hospital de Jerez Cádiz, Spain; (C.B.G.); (J.F.R.G.); (L.H.-R.)
| | | | - Lourdes Hermosín-Ramos
- Department of Paediatric Haematology and Oncology, 11407 Hospital de Jerez Cádiz, Spain; (C.B.G.); (J.F.R.G.); (L.H.-R.)
| | | | | | - Manuel Ramírez-Orellana
- Department of Paediatric Haematology and Oncology, Hospital Infantil Universitario Niño Jesús, Instituto Investigación Sanitaria La Princesa, 28009 Madrid, Spain; (M.R.-O.); (A.C.R.)
| | - Ana Castillo Robleda
- Department of Paediatric Haematology and Oncology, Hospital Infantil Universitario Niño Jesús, Instituto Investigación Sanitaria La Princesa, 28009 Madrid, Spain; (M.R.-O.); (A.C.R.)
| | - Juan Luis Fernández-Martínez
- Department of Mathematics, Group of Inverse Problems, Optimisation and Machine Learning, University of Oviedo, 33005 Oviedo, Spain;
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Zhu C, Song Z, Wang A, Srinivasan S, Yang G, Greco R, Theilhaber J, Shehu E, Wu L, Yang ZY, Passe-Coutrin W, Fournier A, Tai YT, Anderson KC, Wiederschain D, Bahjat K, Adrián FJ, Chiron M. Isatuximab Acts Through Fc-Dependent, Independent, and Direct Pathways to Kill Multiple Myeloma Cells. Front Immunol 2020; 11:1771. [PMID: 32922390 PMCID: PMC7457083 DOI: 10.3389/fimmu.2020.01771] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 07/02/2020] [Indexed: 11/21/2022] Open
Abstract
Isatuximab is a monoclonal antibody targeting the transmembrane receptor and ectoenzyme CD38, a protein highly expressed on hematological malignant cells, including those in multiple myeloma (MM). Upon binding to CD38-expressing MM cells, isatuximab is thought to induce tumor cell killing via fragment crystallizable (Fc)-dependent mechanisms, including antibody-dependent cellular cytotoxicity (ADCC), antibody-dependent cellular phagocytosis (ADCP), and complement-dependent cytotoxicity (CDC), as well as via direct Fc-independent mechanisms. Here, these mechanisms of action were investigated in MM and diffuse large B-cell lymphoma (DLBCL) cell lines, as well as in peripheral blood mononuclear cells derived from healthy donors, and in MM patient-derived samples. Our findings show that isatuximab-mediated cytotoxicity occurred primarily via ADCC and ADCP in MM cell lines and via ADCC and apoptosis in DLBCL cell lines expressing high levels of CD38. We identified the programmed cell death-1/programmed cell death-ligand 1 (PD-1/PD-L1) pathway and MM cell-secreted transforming growth factor-beta (TGF-β) as tumor cell-related features that could suppress CD38-mediated ADCC. Furthermore, we established that isatuximab can directly activate natural killer (NK) cells and promote NK cell-mediated cytotoxicity via crosslinking of CD38 and CD16. Finally, isatuximab-induced CDC was observed in cell lines with high CD38 receptor density (>250,000 molecules/cell) and limited expression of inhibitory complement regulatory proteins (CD46, CD55, and CD59; <50,000 molecules/cell). Taken together, our findings highlight mechanistic insights for isatuximab and provide support for a range of combination therapy approaches that could be tested for isatuximab in the future.
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Affiliation(s)
- Chen Zhu
- Sanofi Oncology, Cambridge, MA, United States
| | - Zhili Song
- Sanofi Oncology, Cambridge, MA, United States
| | - Anlai Wang
- Sanofi Oncology, Cambridge, MA, United States
| | | | - Guang Yang
- Sanofi Oncology, Cambridge, MA, United States
| | - Rita Greco
- Sanofi Oncology, Cambridge, MA, United States
| | | | - Elvis Shehu
- Sanofi Oncology, Cambridge, MA, United States
| | - Lan Wu
- Sanofi Research and Development, Sanofi North America, Cambridge, MA, United States
| | - Zhi-Yong Yang
- Sanofi Research and Development, Sanofi North America, Cambridge, MA, United States
| | | | - Alain Fournier
- Sanofi R&D, Tumor-Targeted Immuno-Modulation I, Vitry-sur-Seine, France
| | - Yu-Tzu Tai
- Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
| | - Kenneth C. Anderson
- Jerome Lipper Multiple Myeloma Center, LeBow Institute for Myeloma Therapeutics, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
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Vaisitti T, Arruga F, Guerra G, Deaglio S. Ectonucleotidases in Blood Malignancies: A Tale of Surface Markers and Therapeutic Targets. Front Immunol 2019; 10:2301. [PMID: 31636635 PMCID: PMC6788384 DOI: 10.3389/fimmu.2019.02301] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 09/11/2019] [Indexed: 12/11/2022] Open
Abstract
Leukemia develops as the result of intrinsic features of the transformed cell, such as gene mutations and derived oncogenic signaling, and extrinsic factors, such as a tumor-friendly, immunosuppressed microenvironment, predominantly in the lymph nodes and the bone marrow. There, high extracellular levels of nucleotides, mainly NAD+ and ATP, are catabolized by different ectonucleotidases, which can be divided in two families according to substrate specificity: on one side those that metabolize NAD+, including CD38, CD157, and CD203a; on the other, those that convert ATP, namely CD39 (and other ENTPDases) and CD73. They generate products that modulate intracellular calcium levels and that activate purinergic receptors. They can also converge on adenosine generation with profound effects, both on leukemic cells, enhancing chemoresistance and homing, and on non-malignant immune cells, polarizing them toward tolerance. This review will first provide an overview of ectonucleotidases expression within the immune system, in physiological and pathological conditions. We will then focus on different hematological malignancies, discussing their role as disease markers and possibly pathogenic agents. Lastly, we will describe current efforts aimed at therapeutic targeting of this family of enzymes.
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Affiliation(s)
- Tiziana Vaisitti
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Francesca Arruga
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Giulia Guerra
- Department of Medical Sciences, University of Turin, Turin, Italy
| | - Silvia Deaglio
- Department of Medical Sciences, University of Turin, Turin, Italy
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Brennan L, Narendran A. Cancer Stem Cells in the Development of Novel Therapeutics for Refractory Pediatric Leukemia. Stem Cells Dev 2019; 28:1277-1287. [PMID: 31364487 DOI: 10.1089/scd.2019.0035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Although treatment strategies for pediatric leukemia have improved overall survival rates in the recent past, relapse rates in certain subgroups such as infant leukemia remain unacceptably high. Despite undergoing extensive chemotherapy designed to target the rapidly proliferating leukemia cells, many of these children experience relapse. In refractory leukemia, the existence of cell populations with stemness characteristics, termed leukemia stem cells (LSCs), which remain quiescent and subsequently replenish the blast population, has been described. A significant body of evidence exists, derived largely from xenograft models of adult acute myeloid leukemia, to support the idea that LSCs may play a fundamental role in refractory disease. In addition, clinical studies have also linked LSCs with increased minimal residual disease, higher relapse rate, and decreased survival rates in these patients. Recently, a number of reports have addressed effective ways to utilize new-generation genomic sequencing and transcriptomic analyses to identify targeted therapeutic agents aimed at LSCs, while sparing normal hematopoietic stem cells. These data underscore the value of timely translation of knowledge from adult studies to the unique molecular and physiological characteristics seen in pediatric leukemia. We aim to summarize this article in the rapidly expanding field of stem cell biology in hematopoietic malignancies, focusing particularly on relevant preclinical models and novel targeted therapeutics, and their applicability to childhood leukemia.
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Affiliation(s)
| | - Aru Narendran
- Division of Pediatric Hematology, Oncology and Transplant, POETIC Laboratory for Novel Therapeutics Discovery in Pediatric Oncology, Alberta Children's Hospital, Calgary, Canada
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El-Menshawy N, Abd-Aziz SM, Elkhamisy EM, Ebrahim MA. Leukemia propagating cells in Philadelphia chromosome-positive ALL: a resistant phenotype with an adverse prognosis. Blood Res 2018; 53:138-144. [PMID: 29963520 PMCID: PMC6021579 DOI: 10.5045/br.2018.53.2.138] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Revised: 01/06/2018] [Accepted: 02/22/2018] [Indexed: 11/17/2022] Open
Abstract
Background Targeted therapy has revolutionized the management of Philadelphia chromosome-positive (Ph+) acute lymphoblastic leukemia (ALL); however, relapse still occurs because of the presence of quiescent stem cells, termed leukemia propagating cells (LPCs). This study aimed to assess the phenotypic diversity of LPCs in adult patients with Ph+ B-Acute ALL (B-ALL) and to assess its prognostic impact. Methods Seventy adults with newly diagnosed Ph+ B-ALL were recruited at the Mansoura Oncology Center. Multiparameter flow cytometry studies of mononuclear blast cells for cluster of differentiation (CD)34, CD38, and CD58 were performed. Results Seventeen patients had blasts with the pattern of LPCs (CD34+CD38-CD58-), while 53 cases had other diverse phenotypic patterns. The rate of complete response was significantly lower in patients with the LPC phenotype (47% vs. 81%, P=0.006). The median time to achieve a complete response was prolonged in patients with the CD34+CD38-CD58- phenotype (48 vs. 32 days, P=0.016). The three-year overall survival was significantly lower in patients with the CD34+CD38-CD58- phenotype (37% vs. 55% respectively, P=0.028). Multivariate analysis showed that the CD34+CD38- CD58- phenotype was an independent risk factor for overall survival. Conclusion The presence of CD34+CD38-CD58- LPCs at diagnosis allows rapid identification of higher risk patients. Risk stratification of these patients is needed to further guide therapy and develop effective LPCs-targeted therapy to improve treatment outcome.
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Affiliation(s)
- Nadia El-Menshawy
- Clinical Pathology Department, Hematology Unit, Mansoura Medical School, Mansoura University, Mansoura, Egypt
| | - Sherin M Abd-Aziz
- Clinical Pathology Department, Hematology Unit, Mansoura Medical School, Mansoura University, Mansoura, Egypt
| | - Enas M Elkhamisy
- Internal Medicine Department, Specialized Medicine Hospital, Mansoura Medical School, Mansoura University, Mansoura, Egypt
| | - Mohammed A Ebrahim
- Medical Oncology, Faculty of Medicine, Oncology Center, Mansoura University, Mansoura, Egypt
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Shi ZX, Li HY, Yang XD, Gao H, Li DG, Yang WH, Yao F, Yan LX. Yi-qi-yang-yin-tang increases the sensitivity of KG1a leukemia stem cells to daunorubicin by promoting cell cycle progression and regulating the expression of PTEN, TOPOII and mTOR. Oncol Lett 2017; 14:6441-6448. [PMID: 29163680 PMCID: PMC5686439 DOI: 10.3892/ol.2017.7067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 07/14/2017] [Indexed: 11/29/2022] Open
Abstract
The present study aimed to investigate the effects of serum containing a combination of yi-qi-yang-yin-tang (YQYYT) and daunorubicin (DNR) on multidrug resistance in KG1a leukemia stem cells (LSCs). The effects of YQYYT and DNR on proliferation, cell cycle progression and the expression of phosphatase and tensin homolog (PTEN), topoisomerase II (Topo II) and mechanistic target of rapamycin (mTOR) in KG1a cells were investigated in vitro using cell counting kit-8 assay, flow cytometry, reverse transcription-quantitative polymerase chain reaction and western blotting, respectively. It was revealed that YQYYT-containing serum did not affect proliferation of KG1a cells compared with the blank group. Furthermore, there were no significant differences on the inhibition of proliferation among different groups at various concentrations of YQYYT. Treatment with YQYYT-containing serum (volume, 20 and 40 µl) and DNR was able to significantly inhibit the proliferation of KG1a cells compared with the blank group. The inhibition rate in the treatment group with YQYYT-containing serum (40 µl) and DNR for 48 h (72.5%) was higher compared with treatment for 24 h (60.4%, P<0.01). Treatment with YQYYT-containing serum was able to promote G0 phase of KG1a cells into cell cycle in a dose- and time-dependent manner, and significantly upregulated the mRNA expression of PTEN and Topo II, but did not affect mTOR expression compared with the blank group. Treatment with serum containing YQYYT alone did not directly affect the proliferation of KG1a cells, but when the cells were treated with a combination of YQYYT-containing serum and DNR, the proliferation of KG1a cells was significantly inhibited in a dose- and time-dependent manner. Furthermore, treatment with YQYYT-containing serum was able to promote cell cycle progression of KG1a cells in the G0 phase and upregulate the expression of the negative regulatory genes PTEN and Topo II. These results indicated the potential of YQYYT to reverse multidrug resistance in LSCs.
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Affiliation(s)
- Zhe-Xin Shi
- Department of Hematology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, P.R. China
| | - Hong-Yu Li
- Tianjin University of Traditional Chinese Medicine, Tianjin 300193, P.R. China
| | - Xiang-Dong Yang
- Department of Hematology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, P.R. China
| | - Hong Gao
- Department of Hematology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, P.R. China
| | - De-Guan Li
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Academy of Medical Science and Peking Union Medical College, Tianjin 300192, P.R. China
| | - Wen-Hua Yang
- Department of Hematology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, P.R. China
| | - Fang Yao
- Department of Hematology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, P.R. China
| | - Li-Xiang Yan
- Department of Hematology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381, P.R. China
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10
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CD34 and CD38 are prognostic biomarkers for acute B lymphoblastic leukemia. Biomark Res 2016; 4:23. [PMID: 28018598 PMCID: PMC5159997 DOI: 10.1186/s40364-016-0080-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 12/02/2016] [Indexed: 12/18/2022] Open
Abstract
CD34 and CD38 proteins are usually used as surface markers to identify HSCs and Leukemic stem cells. However, there have been cases that lacked CD34 or CD38 protein but still had leukemia initiating capacity in B-ALL suggesting the restrictive of these two markers. CD34 and CD38 expression were detected in most B-ALL and can serve as a specific biomarker for the prognosis of this subset of leukemia. Lack of CD34 or high CD38 expression is associated with favorable prognosis.
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