1
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D’Silva SZ, Singh M, Pinto AS. NK cell defects: implication in acute myeloid leukemia. Front Immunol 2023; 14:1112059. [PMID: 37228595 PMCID: PMC10203541 DOI: 10.3389/fimmu.2023.1112059] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 04/25/2023] [Indexed: 05/27/2023] Open
Abstract
Acute Myeloid Leukemia (AML) is a complex disease with rapid progression and poor/unsatisfactory outcomes. In the past few years, the focus has been on developing newer therapies for AML; however, relapse remains a significant problem. Natural Killer cells have strong anti-tumor potential against AML. This NK-mediated cytotoxicity is often restricted by cellular defects caused by disease-associated mechanisms, which can lead to disease progression. A stark feature of AML is the low/no expression of the cognate HLA ligands for the activating KIR receptors, due to which these tumor cells evade NK-mediated lysis. Recently, different Natural Killer cell therapies have been implicated in treating AML, such as the adoptive NK cell transfer, Chimeric antigen receptor-modified NK (CAR-NK) cell therapy, antibodies, cytokine, and drug treatment. However, the data available is scarce, and the outcomes vary between different transplant settings and different types of leukemia. Moreover, remission achieved by some of these therapies is only for a short time. In this mini-review, we will discuss the role of NK cell defects in AML progression, particularly the expression of different cell surface markers, the available NK cell therapies, and the results from various preclinical and clinical trials.
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Affiliation(s)
- Selma Z. D’Silva
- Transplant Immunology and Immunogenetics Lab, Advanced Centre for Treatment, Education and Research in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India
| | - Meenakshi Singh
- Transplant Immunology and Immunogenetics Lab, Advanced Centre for Treatment, Education and Research in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
| | - Andrea S. Pinto
- Transplant Immunology and Immunogenetics Lab, Advanced Centre for Treatment, Education and Research in Cancer (ACTREC), Tata Memorial Centre, Navi Mumbai, India
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2
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Jones AB, Rocco A, Lamb LS, Friedman GK, Hjelmeland AB. Regulation of NKG2D Stress Ligands and Its Relevance in Cancer Progression. Cancers (Basel) 2022; 14:2339. [PMID: 35565467 PMCID: PMC9105350 DOI: 10.3390/cancers14092339] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 04/22/2022] [Accepted: 04/26/2022] [Indexed: 01/27/2023] Open
Abstract
Under cellular distress, multiple facets of normal homeostatic signaling are altered or disrupted. In the context of the immune landscape, external and internal stressors normally promote the expression of natural killer group 2 member D (NKG2D) ligands that allow for the targeted recognition and killing of cells by NKG2D receptor-bearing effector populations. The presence or absence of NKG2D ligands can heavily influence disease progression and impact the accessibility of immunotherapy options. In cancer, tumor cells are known to have distinct regulatory mechanisms for NKG2D ligands that are directly associated with tumor progression and maintenance. Therefore, understanding the regulation of NKG2D ligands in cancer will allow for targeted therapeutic endeavors aimed at exploiting the stress response pathway. In this review, we summarize the current understanding of regulatory mechanisms controlling the induction and repression of NKG2D ligands in cancer. Additionally, we highlight current therapeutic endeavors targeting NKG2D ligand expression and offer our perspective on considerations to further enhance the field of NKG2D ligand biology.
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Affiliation(s)
- Amber B. Jones
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35233, USA;
| | - Abbey Rocco
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Alabama at Birmingham, Birmingham, AL 35233, USA; (A.R.); (G.K.F.)
| | | | - Gregory K. Friedman
- Department of Pediatrics, Division of Pediatric Hematology and Oncology, University of Alabama at Birmingham, Birmingham, AL 35233, USA; (A.R.); (G.K.F.)
| | - Anita B. Hjelmeland
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL 35233, USA;
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3
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Ye Y, Yang L, Yuan X, Huang H, Luo Y. Optimization of Donor Lymphocyte Infusion for AML Relapse After Allo-HCT in the Era of New Drugs and Cell Engineering. Front Oncol 2022; 11:790299. [PMID: 35155192 PMCID: PMC8829143 DOI: 10.3389/fonc.2021.790299] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/28/2021] [Indexed: 12/19/2022] Open
Abstract
Donor lymphocyte infusion (DLI) is a key strategy for the treatment of AML relapse after allogeneic hematopoietic cell transplantation (allo-HCT) and has been used for either prophylactic, pre-emptive, or therapeutic purposes. However, the prognosis of these patients remains dismal even after DLI infusion (2-year overall survival, ~25%), and the efficacy is achieved at the cost of toxicities such as graft-versus-host (GVH) disease. Attempts to optimize DLI efficacy and safety, such as dose/timing modification and the use of cytoreduction, before DLI have been performed previously. Recently, a great number of novel targeted and immunomodulatory agents have emerged. Some of them, such as hypomethylating agents, FLT3 and Bcl-2 inhibitors, have been used in combination with DLI, aiming to enhance the graft-versus-leukemia effect. Moreover, manipulation of the DLI graft through cell selection (e.g., donor NK cells) or cell engineering (donor CAR-T cells) has shown potentially superior anti-tumor effects but less GVH effect than conventional DLI in clinical trials. This review summarizes the recent advances on the use of DLI for the prophylaxis/treatment of AML relapse and discusses future strategies which may further improve the treatment efficacy.
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Affiliation(s)
- Yishan Ye
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Luxin Yang
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Xiaolin Yuan
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - He Huang
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
| | - Yi Luo
- First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China
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4
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Aslostovar L, Boyd AL, Benoit YD, Di Lu J, Garcia Rodriguez JL, Nakanishi M, Porras DP, Reid JC, Mitchell RR, Leber B, Xenocostas A, Foley R, Bhatia M. Abnormal dopamine receptor signaling allows selective therapeutic targeting of neoplastic progenitors in AML patients. CELL REPORTS MEDICINE 2021; 2:100202. [PMID: 33665638 PMCID: PMC7897800 DOI: 10.1016/j.xcrm.2021.100202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 11/02/2020] [Accepted: 01/19/2021] [Indexed: 12/17/2022]
Abstract
The aberrant expression of dopamine receptors (DRDs) in acute myeloid leukemia (AML) cells has encouraged the repurposing of DRD antagonists such as thioridazine (TDZ) as anti-leukemic agents. Here, we access patient cells from a Phase I dose escalation trial to resolve the cellular and molecular bases of response to TDZ, and we extend these findings to an additional independent cohort of AML patient samples tested preclinically. We reveal that in DRD2+ AML patients, DRD signaling in leukemic progenitors provides leukemia-exclusive networks of sensitivity that spare healthy hematopoiesis. AML progenitor cell suppression can be increased by the isolation of the positive enantiomer from the racemic TDZ mixture (TDZ+), and this is accompanied by reduced cardiac liability. Our study indicates that the development of DRD-directed therapies provides a targeting strategy for a subset of AML patients and potentially other cancers that acquire DRD expression upon transformation from healthy tissue. Leukemic progenitors are a critical cellular target of DRD2 antagonist TDZ DRD2 protein expression is a reliable biomarker of TDZ response DRD2 antagonism selectively triggers leukemic maturation programs via cyclic AMP An enantiomer of TDZ displays a superior efficacy:risk ratio relative to racemic TDZ
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Affiliation(s)
- Lili Aslostovar
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada
| | - Allison L Boyd
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada
| | - Yannick D Benoit
- Department of Cellular and Molecular Medicine, Ottawa University, Ottawa, ON, Canada
| | - Justin Di Lu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | | | - Mio Nakanishi
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada
| | - Deanna P Porras
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Jennifer C Reid
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
| | - Ryan R Mitchell
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada
| | - Brian Leber
- Department of Medicine, McMaster University, Juravinski Hospital, Hamilton, ON, Canada
| | - Anargyros Xenocostas
- Division of Hematology, Department of Medicine, University of Western Ontario, London Health Sciences Centre, London, ON, Canada
| | - Ronan Foley
- Department of Pathology and Molecular Medicine, McMaster University, Juravinski Hospital, Hamilton, ON, Canada
| | - Mickie Bhatia
- Stem Cell and Cancer Research Institute, McMaster University, Hamilton, ON, Canada.,Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, ON, Canada
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5
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Wu Z, Zhang H, Wu M, Peng G, He Y, Wan N, Zeng Y. Targeting the NKG2D/NKG2D-L axis in acute myeloid leukemia. Biomed Pharmacother 2021; 137:111299. [PMID: 33508619 DOI: 10.1016/j.biopha.2021.111299] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/12/2021] [Accepted: 01/18/2021] [Indexed: 12/20/2022] Open
Abstract
Natural killer group 2, member D (NKG2D) receptor is a crucial activating receptor in the immune recognition and eradication of abnormal cells by natural killer (NK) cells, and T lymphocytes. NKG2D can transmit activation signals and activate the immune system by recognizing the NKG2D ligands (NKG2D-L) on acute myeloid leukemia (AML) cells. Downregulation of NKG2D-L in AML can circumvent resistance to chemotherapy and immune recognition. Considering this effect, the exploration of targeting the NKG2D/NKG2D-L axis is considered to have tremendous potential for the discovery of novel biomacromolecule antibodies and pharmacological modulators in AML. This review was to outline the impact of NKG2D/NKG2D-L axis on intrinsic immunosurveillance and the development of AML. Furthermore, the NKG2D/NKG2D-L axis related modulators and progress in preclinical and clinical trials was also to be reviewed.
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Affiliation(s)
- Zhenhui Wu
- The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, Jiangxi Province, China
| | - Huan Zhang
- The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, Jiangxi Province, China
| | - Min Wu
- The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, Jiangxi Province, China
| | - Guorui Peng
- The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, Jiangxi Province, China
| | - Yanqiu He
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, Jiangxi Province, China
| | - Na Wan
- Jiangxi University of Traditional Chinese Medicine, Nanchang, 330004, Jiangxi Province, China.
| | - Yingjian Zeng
- The Affiliated Hospital of Jiangxi University of Traditional Chinese Medicine, Nanchang, 330006, Jiangxi Province, China.
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6
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Adrianzen-Herrera D, Choudhary G, Gordon-Mitchell S, Ramachandra N, Bhagat T, Zhang H, Aluri S, Shastri A, Steidl U, Will B, Yang WL, Mahler M, Eichenbaum G, Guha C, Verma A. The thrombopoietin mimetic JNJ-26366821 increases megakaryopoiesis without affecting malignant myeloid proliferation. Leuk Lymphoma 2020; 61:2453-2465. [PMID: 32578476 DOI: 10.1080/10428194.2020.1775213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Thrombocytopenia remains a challenge in myeloid malignancies, needing safer and more effective therapies. JNJ-26366821, a pegylated synthetic peptide thrombopoietin (TPO) mimetic not homologous to endogenous TPO, has an in-vitro EC50 of 0.2 ng/mL for the TPO receptor and dose dependently elevates platelets in volunteers. We demonstrate that JNJ-26366821 increases megakaryocytic differentiation and megakaryocytic colony formation in healthy controls and samples from myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). JNJ-26366821 had no effect on proliferation of malignant myeloid cell lines at doses up to 1000 ng/mL and malignant patient-derived mononuclear cells showed no increased cell growth or leukemic colony formation capacity at concentrations between 0.2 ng/mL and 10 ng/mL. Furthermore, JNJ-26366821 did not enhance in-vivo engraftment of leukemic cells in an AML xenotransplantation murine model. Our results show that JNJ-26366821 stimulates megakaryopoiesis without causing proliferation of the malignant myeloid clones in MDS/AML and provides the rationale for clinical testing of JNJ-26366821 in myeloid malignancies.
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Affiliation(s)
- Diego Adrianzen-Herrera
- Division of Hematology and Oncology, Larner College of Medicine at the University of Vermont, Burlington, VT, USA
| | - Gaurav Choudhary
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Shanisha Gordon-Mitchell
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Nandini Ramachandra
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Tushar Bhagat
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Hui Zhang
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Srinivas Aluri
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Aditi Shastri
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Ulrich Steidl
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Britta Will
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Weng-Lang Yang
- Department of Radiation Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Michelle Mahler
- Department of the Chief Medical Officer, Johnson & Johnson Global Service, New Brunswick, NJ, USA
| | - Gary Eichenbaum
- Department of the Chief Medical Officer, Johnson & Johnson Global Service, New Brunswick, NJ, USA
| | - Chandan Guha
- Department of Radiation Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
| | - Amit Verma
- Department of Oncology, Albert Einstein College of Medicine - Montefiore Medical Center, Bronx, NY, USA
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7
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Xu QY, Yu L. Epigenetic therapies in acute myeloid leukemia: the role of hypomethylating agents, histone deacetylase inhibitors and the combination of hypomethylating agents with histone deacetylase inhibitors. Chin Med J (Engl) 2020; 133:699-715. [PMID: 32044818 PMCID: PMC7190219 DOI: 10.1097/cm9.0000000000000685] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Indexed: 12/24/2022] Open
Abstract
Epigenetic regulation includes changes of DNA methylation and modifications of histone proteins and is essential for normal physiologic functions, especially for controlling gene expression. Epigenetic dysregulation plays a key role in disease pathogenesis and progression of some malignancies, including acute myeloid leukemia (AML). Epigenetic therapies, including hypomethylating agents (HMAs) and histone deacetylase (HDAC) inhibitors, were developed to reprogram the epigenetic abnormalities in AML. However, the molecular mechanisms and therapeutic effects of the two agents alone or their combination remain unknown. An overview of these epigenetic therapies is given here. A literature search was conducted through PubMed database, looking for important biological or clinical studies related to the epigenetic regimens in the treatment of AML until October 15th, 2019. Various types of articles, including original research and reviews, were assessed, identified, and eventually summarized as a collection of data pertaining the mechanisms and clinical effects of HMAs and HDAC inhibitors in AML patients. We provided here an overview of the current understanding of the mechanisms and clinical therapeutic effects involved in the treatment with HMAs and HDAC inhibitors alone, the combination of epigenetic therapies with intensive chemotherapy, and the combination of both types of epigenetic therapies. Relevant clinical trials were also discussed. Generally speaking, the large number of studies and their varied outcomes demonstrate that effects of epigenetic therapies are heterogeneous, and that HMAs combination regimens probably contribute to significant response rates. However, more research is needed to explore therapeutic effects of HDAC inhibitors and various combinations of HMAs and HDAC inhibitors.
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Affiliation(s)
- Qing-Yu Xu
- Department of Hematology-Oncology, International Cancer Center, Shenzhen University General Hospital, Shenzhen University Health Science Center, Shenzhen, Guangdong 518000, China
- Department of Hematology and Oncology, Medical Faculty Mannheim, Heidelberg University, Mannheim 68169, Germany
| | - Li Yu
- Department of Hematology-Oncology, International Cancer Center, Shenzhen University General Hospital, Shenzhen University Health Science Center, Shenzhen, Guangdong 518000, China
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8
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Dholaria B, Savani BN, Labopin M, Luznik L, Ruggeri A, Mielke S, Al Malki MM, Kongtim P, Fuchs E, Huang XJ, Locatelli F, Aversa F, Castagna L, Bacigalupo A, Martelli M, Blaise D, Ben Soussan P, Arnault Y, Handgretinger R, Roy DC, O'Donnell P, Bashey A, Solomon S, Romee R, Lewalle P, Gayoso J, Maschan M, Lazarus HM, Ballen K, Giebel S, Baron F, Ciceri F, Esteve J, Gorin NC, Spyridonidis A, Schmid C, Ciurea SO, Nagler A, Mohty M. Clinical applications of donor lymphocyte infusion from an HLA-haploidentical donor: consensus recommendations from the Acute Leukemia Working Party of the EBMT. Haematologica 2020; 105:47-58. [PMID: 31537691 PMCID: PMC6939532 DOI: 10.3324/haematol.2019.219790] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Accepted: 09/19/2019] [Indexed: 01/30/2023] Open
Abstract
Donor lymphocyte infusion has been used in the management of relapsed hematologic malignancies after allogeneic hematopoietic cell transplantation. It can eradicate minimal residual disease or be used to rescue a hematologic relapse, being able to induce durable remissions in a subset of patients. With the increased use of haploidentical hematopoietic cell transplantation, there is renewed interest in the use of donor lymphocytes to either treat or prevent disease relapse post transplant. Published retrospective and small prospective studies have shown encouraging results with therapeutic donor lymphocyte infusion in different haploidentical transplantation platforms. In this consensus paper, finalized on behalf of the Acute Leukemia Working Party of the European Society for Blood and Marrow Transplantation, we summarize the available evidence on the use of donor lymphocyte infusion from haploidentical donor, and provide recommendations on its therapeutic, pre-emptive and prophylactic use in clinical practice.
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Affiliation(s)
- Bhagirathbhai Dholaria
- Department of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Bipin N Savani
- Department of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Myriam Labopin
- Department of Haematology and EBMT Paris study office / CEREST-TC, Saint Antoine Hospital, Paris, France
| | - Leo Luznik
- Department of Oncology Hematologic Malignancies, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Annalisa Ruggeri
- Department of Pediatric Hematology/Oncology and Cell and Gene Therapy, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Stephan Mielke
- Department of Laboratory Medicine, CAST, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Monzr M Al Malki
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, USA
| | - Piyanuch Kongtim
- Stem Cell Transplant and Cellular Therapy, Thammasat University, Pathumthani, Thailand
| | - Ephraim Fuchs
- Johns Hopkins University, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, USA
| | - Xiao-Jun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing China
| | - Franco Locatelli
- Department of Pediatric Hematology/Oncology, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Sapienza, University of Rome, Italy
| | - Franco Aversa
- Department of Medicine and Surgery, University of Parma, Parma, Italy
| | | | - Andrea Bacigalupo
- Fondazione Policlinico Universitario Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - Didier Blaise
- Department of Hematology, Institut Paoli Calmettes, Marseille France
| | - Patrick Ben Soussan
- Department of Clinical Psychology, Paoli-Calmettes Institute, Marseille, France
| | - Yolande Arnault
- Institut Paoli-Calmette, département de psychologie clinique, Marseille, France
| | - Rupert Handgretinger
- Department of Hematology and Oncology, University Children's Hospital Tübingen, Tübingen Germany
| | - Denis-Claude Roy
- Division of Hematology and Medical Oncology, Hospital Maisonneuve-Rosemont, Montreal, QC, Canada
| | - Paul O'Donnell
- Hematology-Oncology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Asad Bashey
- Blood and Marrow Transplant Program at Northside Hospital, Atlanta, GA, USA
| | - Scott Solomon
- Blood and Marrow Transplant Program at Northside Hospital, Atlanta, GA, USA
| | - Rizwan Romee
- Dana Farber Cancer Institute, Harvard Medical School, Boston, MA, USA
| | - Philippe Lewalle
- Hematology Department, Institut Jules Bordet, Université Libre de Bruxelles, Brussels, Belgium
| | - Jorge Gayoso
- HGU Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Michael Maschan
- Oncology and immunology, Dmitriy Rogachev National Medical Center of pediatric hematology, Moscow, Russia
| | - Hillard M Lazarus
- Adult Hematologic Malignancies & Stem Cell Transplant Section, University Hospitals Seidman Cancer Center, Cleveland, OH, USA
| | - Karen Ballen
- Division of hematology/oncology, University of Virginia Health System, Charlottesville, VA, USA
| | - Sebastian Giebel
- Dept. of Bone Marrow Transplantation and Onco-Hematology, Maria Sklodowska-Curie Institute - Oncology Center, Gliwice Branch, Gliwice, Poland
| | - Frederic Baron
- Laboratory of Hematology, University of Liège, Liège, Belgium
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, San Raffaele Scientific Institute, Milano Italy
| | - Jordi Esteve
- Hematology department, Hospital Clínic de Barcelona, Barcelona Spain
| | - Norbert-Claude Gorin
- Service d'hématologie et thérapie cellulaire Centre international greffes APHP-EBMT-INCa Hospital, Saint Antoine Hospital, Paris France
| | - Alexandros Spyridonidis
- Bone Marrow Transplantation Unit and CBMDP Donor Center, University Hospital of Patras, Patras, Greece
| | - Christoph Schmid
- Department of Hematology and Oncology, Klinikum Augsburg, Augsburg, Germany
| | - Stefan O Ciurea
- Stem Cell Transplant and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Arnon Nagler
- Chaim Sheba Medical Center, Tel Aviv University, Tel-Hashomer, Israel and EBMT ALWP office, Saint Antoine Hospital, Paris, France
| | - Mohamad Mohty
- Service d'Hématologie Clinique et Thérapie Cellulaire, Hôpital Saint-Antoine, AP-HP, Sorobonne University, and INSERM UMRs 938, Paris, France
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9
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Williams BA, Wang XH, Leyton JV, Maghera S, Deif B, Reilly RM, Minden MD, Keating A. CD16 +NK-92 and anti-CD123 monoclonal antibody prolongs survival in primary human acute myeloid leukemia xenografted mice. Haematologica 2018; 103:1720-1729. [PMID: 29976748 PMCID: PMC6165813 DOI: 10.3324/haematol.2017.187385] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 07/03/2018] [Indexed: 12/21/2022] Open
Abstract
Patients with acute myeloid leukemia (AML) often relapse after initial therapy because of persistence of leukemic stem cells that frequently express the IL-3 receptor alpha chain CD123. Natural killer (NK) cell-based therapeutic strategies for AML show promise and we explore the NK cell lines, NK-92 and CD16+ NK-92, as a treatment for AML. NK-92 has been tested in phase I clinical trials with minimal toxicity; irradiation prior to infusion prevents risk of engraftment. The CD16 negative NK-92 parental line was genetically modified to express the high affinity Fc gamma receptor, enabling antibody-dependent cell-mediated cytotoxicity, which we utilized in combination with an anti-CD123 antibody to target leukemic stem cells. NK-92 was preferentially cytotoxic against leukemic stem and progenitor cells compared with bulk leukemia in in vitro assays, while CD16+ NK-92 in combination with an anti-CD123 mAb mediated antibody-dependent cell-mediated cytotoxicity against CD123+ leukemic targets. Furthermore, NK-92 infusions (with or without prior irradiation) improved survival in a primary AML xenograft model. Mice xenografted with primary human AML cells had a superior survival when treated with irradiated CD16+NK-92 cells and an anti-CD123 monoclonal antibody (7G3) versus treatment with irradiated CD16+NK-92 cells combined with an isotype control antibody. In this proof-of-principle study, we show for the first time that a CD16+NK-92 cell line combined with an antibody that targets a leukemic stem cell antigen can lead to improved survival in a relevant pre-clinical model of AML.
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Affiliation(s)
- Brent A Williams
- Cell Therapy Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada .,Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Xing-Hua Wang
- Cell Therapy Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Jeffrey V Leyton
- Department of Nuclear Medicine and Radiobiology, Université de Sherbrooke, Quebec, Canada
| | - Sonam Maghera
- Cell Therapy Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Ontario, Canada
| | - Bishoy Deif
- Cell Therapy Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - Raymond M Reilly
- Department of Medical Imaging, University of Toronto, Ontario, Canada.,Department of Pharmaceutical Sciences, University of Toronto, Ontario, Canada.,Toronto General Research Institute, University Health Network, Toronto, Ontario, Canada
| | - Mark D Minden
- Department of Medical Biophysics, University of Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Ontario, Canada
| | - Armand Keating
- Cell Therapy Program, Princess Margaret Cancer Centre, Toronto, Ontario, Canada.,Institute of Medical Science, University of Toronto, Ontario, Canada.,Department of Medicine, University of Toronto, Ontario, Canada.,Institute of Biomaterials and Biomedical Engineering, University of Toronto, Canada.,Krembil Research Institute, University Health Network, Toronto, Ontario, Canada
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10
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Snyder V, Reed-Newman TC, Arnold L, Thomas SM, Anant S. Cancer Stem Cell Metabolism and Potential Therapeutic Targets. Front Oncol 2018; 8:203. [PMID: 29922594 PMCID: PMC5996058 DOI: 10.3389/fonc.2018.00203] [Citation(s) in RCA: 136] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Accepted: 05/21/2018] [Indexed: 12/13/2022] Open
Abstract
Malignant tumors contain heterogeneous populations of cells in various states of proliferation and differentiation. The presence of cancer stem or initiating cells is a well-established concept wherein quiescent and poorly differentiated cells within a tumor mass contribute to drug resistance, and under permissive conditions, are responsible for tumor recurrence and metastasis. A number of studies have identified molecular markers that are characteristic of tissue-specific cancer stem cells (CSCs). Isolation of CSCs has enabled studies on the metabolic status of CSCs. As metabolic plasticity is a hallmark of cancer cell adaptation, the intricacies of CSC metabolism and their phenotypic behavior are critical areas of research. Unlike normal stem cells, which rely heavily on oxidative phosphorylation (OXPHOS) as their primary source of energy, or cancer cells, which are primarily glycolytic, CSCs demonstrate a unique metabolic flexibility. CSCs can switch between OXPHOS and glycolysis in the presence of oxygen to maintain homeostasis and, thereby, promote tumor growth. Here, we review key factors that impact CSC metabolic phenotype including heterogeneity of CSCs across different histologic tumor types, tissue-specific variations, tumor microenvironment, and CSC niche. Furthermore, we discuss how targeting key players of glycolytic and mitochondrial pathways has shown promising results in cancer eradication and attenuation of disease recurrence in preclinical models. In addition, we highlight studies on other potential therapeutic targets including complex interactions within the microenvironment and cellular communications in the CSC niche to interfere with CSC growth, resistance, and metastasis.
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Affiliation(s)
- Vusala Snyder
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Tamika C Reed-Newman
- Department of General Surgery, University of Kansas Medical Center, Kansas City, KS, United States
| | - Levi Arnold
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Sufi Mary Thomas
- Department of Otolaryngology, University of Kansas Medical Center, Kansas City, KS, United States.,Anatomy and Cell Biology, University of Kansas Medical Center, Kansas City, KS, United States.,Cancer Biology, University of Kansas Medical Center, Kansas City, KS, United States
| | - Shrikant Anant
- Department of General Surgery, University of Kansas Medical Center, Kansas City, KS, United States.,Cancer Biology, University of Kansas Medical Center, Kansas City, KS, United States
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11
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Selection and expansion of natural killer cells for NK cell-based immunotherapy. Cancer Immunol Immunother 2016; 65:477-84. [PMID: 26810567 PMCID: PMC4826432 DOI: 10.1007/s00262-016-1792-y] [Citation(s) in RCA: 131] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 01/01/2016] [Indexed: 01/19/2023]
Abstract
Natural killer (NK) cells have been used in several clinical trials as adaptive immunotherapy. The low numbers of these cells in peripheral blood mononuclear cells (PBMC) have resulted in various approaches to preferentially expand primary NK cells from PBMC. While some clinical trials have used the addition of interleukin 2 (IL-2) to co-stimulate the expansion of purified NK cells from allogeneic donors, recent studies have shown promising results in achieving in vitro expansion of NK cells to large numbers for adoptive immunotherapy. NK cell expansion requires multiple cell signals for survival, proliferation and activation. Thus, expansion strategies have been focused either to substitute these factors using autologous feeder cells or to use genetically modified allogeneic feeder cells. Recent developments in the clinical use of genetically modified NK cell lines with chimeric antigen receptors, the development of expansion protocols for the clinical use of NK cell from human embryonic stem cells and induced pluripotent stem cells are challenging improvements for NK cell-based immunotherapy. Transfer of several of these protocols to clinical-grade production of NK cells necessitates adaptation of good manufacturing practice conditions, and the development of freezing conditions to establish NK cell stocks will require some effort and, however, should enhance the therapeutic options of NK cells in clinical medicine.
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12
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Zhao Q, Ren H, Feng S, Chi Y, He Y, Yang D, Ma F, Li J, Lu S, Chen F, Xu J, Yang S, Han Z. Aberrant expression and significance of OCT-4A transcription factor in leukemia cells. Blood Cells Mol Dis 2015; 54:90-6. [DOI: 10.1016/j.bcmd.2014.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 07/24/2014] [Indexed: 12/13/2022]
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13
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Fredly H, Gjertsen BT, Bruserud Ø. Histone deacetylase inhibition in the treatment of acute myeloid leukemia: the effects of valproic acid on leukemic cells, and the clinical and experimental evidence for combining valproic acid with other antileukemic agents. Clin Epigenetics 2013; 5:12. [PMID: 23898968 PMCID: PMC3733883 DOI: 10.1186/1868-7083-5-12] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 07/03/2013] [Indexed: 01/19/2023] Open
Abstract
Several new therapeutic strategies are now considered for acute myeloid leukemia (AML) patients unfit for intensive chemotherapy, including modulation of protein lysine acetylation through inhibition of histone deacetylases (HDACs). These enzymes alter the acetylation of several proteins, including histones and transcription factors, as well as several other proteins directly involved in the regulation of cell proliferation, differentiation and apoptosis. Valproic acid (VPA) is a HDAC inhibitor that has been investigated in several clinical AML studies, usually in combination with all-trans retinoic acid (ATRA) for treatment of patients unfit for intensive chemotherapy, for example older patients, and many of these patients have relapsed or primary resistant leukemia. The toxicity of VPA in these patients is low and complete hematological remission lasting for several months has been reported for a few patients (<5% of included patients), but increased peripheral blood platelet counts are seen for 30 to 40% of patients and may last for up to 1 to 2 years. We review the biological effects of VPA on human AML cells, the results from clinical studies of VPA in the treatment of AML and the evidence for combining VPA with new targeted therapy. However, it should be emphasized that VPA has not been investigated in randomized clinical studies. Despite this lack of randomized studies, we conclude that disease-stabilizing treatment including VPA should be considered especially in unfit patients, because the possibility of improving normal blood values has been documented in several studies and the risk of clinically relevant toxicity is minimal.
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Affiliation(s)
- Hanne Fredly
- Section for Hematology, Institute of Medicine, University of Bergen, N-5021, Bergen, Norway
| | - Bjørn Tore Gjertsen
- Section for Hematology, Institute of Medicine, University of Bergen, N-5021, Bergen, Norway
- Department of Medicine, Haukeland University Hospital, Jonas Lies 65, 5021, Bergen, Norway
| | - Øystein Bruserud
- Section for Hematology, Institute of Medicine, University of Bergen, N-5021, Bergen, Norway
- Department of Medicine, Haukeland University Hospital, Jonas Lies 65, 5021, Bergen, Norway
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14
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Song DG, Ye Q, Santoro S, Fang C, Best A, Powell DJ. Chimeric NKG2D CAR-expressing T cell-mediated attack of human ovarian cancer is enhanced by histone deacetylase inhibition. Hum Gene Ther 2013; 24:295-305. [PMID: 23297870 DOI: 10.1089/hum.2012.143] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
NKG2D ligands (NKG2DLs) are widely expressed on ovarian cancers to various degrees, making them attractive targets for immunotherapy. Here, we applied a chimeric antigen receptor (CAR) approach for the targeting of NKG2DLs expressed on human ovarian cancer cells and evaluated the impact of pharmacological upregulation of NKG2DLs on immune recognition. Various NKG2DLs, including MICA/B and ULBP-1, -2, -3, and -4, were expressed at various levels on the surface of all established ovarian cancer cell lines and primary ovarian cancer samples tested. To redirect human T cells against NKG2DLs, an NKG2DL-specific CAR was generated by fusing the extracellular domain of the NKG2D receptor to the 4-1BB costimulatory and CD3-ζ chain signaling domains. In vitro expansion of chimeric NKG2D CAR T cells was delayed compared with untransduced T cells and control CAR T cells; the likely result of fratricide among activated T cells expressing NKG2DLs. However, NKG2D CAR T cells did expand and were selectively enriched during prolonged culture. In coculture, CD4(+) and CD8(+) NKG2D CAR T cells specifically recognized and killed NKG2DL-expressing ovarian cancer cell lines but not NKG2DL-negative cells. Notably, pretreatment of ovarian cancer cells expressing moderate to low levels of NKG2DLs with the histone deacetylase inhibitor sodium valproate (VPA) upregulated NKG2DL cell surface expression and consequently enhanced their immune recognition by chimeric NKG2D CAR T cells. Our results demonstrate that VPA-induced upregulation of NKG2DL expression enhances the immune recognition of ovarian cancer cells by engineered NKG2D CAR T cells, and rationalizes the use of VPA in combination with NKG2DL-targeted immunotherapy in ovarian cancer.
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Affiliation(s)
- De-Gang Song
- Ovarian Cancer Research Center, Department of Obstetrics and Gynecology, University of Pennsylvania, Philadelphia, PA 19104, USA
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15
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Lion E, Willemen Y, Berneman ZN, Van Tendeloo VFI, Smits ELJ. Natural killer cell immune escape in acute myeloid leukemia. Leukemia 2012; 26:2019-26. [PMID: 22446501 DOI: 10.1038/leu.2012.87] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
As central players of the innate immune system, natural killer (NK) cells can exert direct and indirect anti-tumor effects via their cytotoxic and immune regulatory capacities, pivotal in the induction of an effective adaptive anti-tumor immune response. Hence, NK cells are considered to be important in the immune surveillance of cancer. In acute myeloid leukemia (AML) patients, however, significantly impaired NK cell functions can facilitate escape from immune surveillance and affect patient outcome. Here, we review various NK cell defects and AML evasion mechanisms to escape from NK cell-mediated immune surveillance and we discuss NK cell-related parameters as prediction factors of AML patient outcome. On the basis of these observations, novel immunotherapeutic strategies capitalizing on the potentiation of NK cell functions have emerged in AML immunotherapy, as discussed in this review. Increased knowledge on AML escape routes from NK cell immune surveillance will further aid in the design of novel NK cell-based immunotherapy approaches for the treatment of AML.
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Affiliation(s)
- E Lion
- Laboratory of Experimental Hematology, Vaccine and Infectious Disease Institute (Vaxinfectio), Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.
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16
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Swift BE, Williams BA, Kosaka Y, Wang XH, Medin JA, Viswanathan S, Martinez-Lopez J, Keating A. Natural killer cell lines preferentially kill clonogenic multiple myeloma cells and decrease myeloma engraftment in a bioluminescent xenograft mouse model. Haematologica 2012; 97:1020-8. [PMID: 22271890 DOI: 10.3324/haematol.2011.054254] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Novel therapies capable of targeting drug resistant clonogenic MM cells are required for more effective treatment of multiple myeloma. This study investigates the cytotoxicity of natural killer cell lines against bulk and clonogenic multiple myeloma and evaluates the tumor burden after NK cell therapy in a bioluminescent xenograft mouse model. DESIGN AND METHODS The cytotoxicity of natural killer cell lines was evaluated against bulk multiple myeloma cell lines using chromium release and flow cytometry cytotoxicity assays. Selected activating receptors on natural killer cells were blocked to determine their role in multiple myeloma recognition. Growth inhibition of clonogenic multiple myeloma cells was assessed in a methylcellulose clonogenic assay in combination with secondary replating to evaluate the self-renewal of residual progenitors after natural killer cell treatment. A bioluminescent mouse model was developed using the human U266 cell line transduced to express green fluorescent protein and luciferase (U266eGFPluc) to monitor disease progression in vivo and assess bone marrow engraftment after intravenous NK-92 cell therapy. RESULTS Three multiple myeloma cell lines were sensitive to NK-92 and KHYG-1 cytotoxicity mediated by NKp30, NKp46, NKG2D and DNAM-1 activating receptors. NK-92 and KHYG-1 demonstrated 2- to 3-fold greater inhibition of clonogenic multiple myeloma growth, compared with killing of the bulk tumor population. In addition, the residual colonies after treatment formed significantly fewer colonies compared to the control in a secondary replating for a cumulative clonogenic inhibition of 89-99% at the 20:1 effector to target ratio. Multiple myeloma tumor burden was reduced by NK-92 in a xenograft mouse model as measured by bioluminescence imaging and reduction in bone marrow engraftment of U266eGFPluc cells by flow cytometry. CONCLUSIONS This study demonstrates that NK-92 and KHYG-1 are capable of killing clonogenic and bulk multiple myeloma cells. In addition, multiple myeloma tumor burden in a xenograft mouse model was reduced by intravenous NK-92 cell therapy. Since multiple myeloma colony frequency correlates with survival, our observations have important clinical implications and suggest that clinical studies of NK cell lines to treat MM are warranted.
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Affiliation(s)
- Brenna E Swift
- Cell Therapy Program, Princess Margaret Hospital, 610 University Ave, Toronto, ON, Canada
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17
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Huang XJ. Immunomodulatory strategies for relapse after haploidentical hematopoietic stem cell transplantation in hematologic malignancy patients. Best Pract Res Clin Haematol 2011; 24:351-8. [DOI: 10.1016/j.beha.2011.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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18
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Smith MT, Zhang L, McHale CM, Skibola CF, Rappaport SM. Benzene, the exposome and future investigations of leukemia etiology. Chem Biol Interact 2011; 192:155-9. [PMID: 21333640 PMCID: PMC3461963 DOI: 10.1016/j.cbi.2011.02.010] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 01/19/2011] [Accepted: 02/10/2011] [Indexed: 12/14/2022]
Abstract
Benzene exposure is associated with acute myeloid leukemia (AML), myelodysplastic syndromes (MDS), and probably lymphoma and childhood leukemia. Biological plausibility for a causal role of benzene in these diseases comes from its toxicity to hematopoietic stem cells (HSC) or progenitor cells, from which all leukemias and related disorders arise. The effect of this toxicity is manifest as lowered blood counts (hematotoxicity), even in individuals occupationally exposed to low levels of benzene. Benzene can induce AML/MDS via several well-characterized pathways associated with these diseases. Through its metabolites, benzene induces multiple alterations that likely contribute to the leukemogenic process, and appears to operate via multiple modes of action. To improve mechanistic understanding and for risk assessment purposes, it may be possible to measure several of the key events in these modes of action in an in vitro model of the bone marrow stem cell niche. Even though benzene is leukemogenic at relatively low occupational levels of exposure, it seems unlikely that it is a major cause of leukemia in the general population exposed to benzene in the ppb range. Other established non-genetic causes of AML, e.g. smoking, ionizing radiation and cancer chemotherapy, also only explain about 20% of AML incidence, leaving ∼80% unexplained. The question arises as to how to find the causes of the majority of de novo AMLs that remain unexplained. We propose that we should attempt to characterize the 'exposome' of human leukemia by using unbiased laboratory-based methods to find the unknown 'environmental' factors that contribute to leukemia etiology.
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Affiliation(s)
- Martyn T Smith
- Genes and Environment Laboratory, School of Public Health, University of California, Berkeley, CA 94720-7356, USA.
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19
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Leon CMMP, Barbosa CMV, Justo GZ, Borelli P, Resende JD, de Oliveira JSR, Ferreira AT, Paredes-Gamero EJ. Requirement for PLCγ2 in IL-3 and GM-CSF-stimulated MEK/ERK phosphorylation in murine and human hematopoietic stem/progenitor cells. J Cell Physiol 2011; 226:1780-92. [PMID: 21506110 DOI: 10.1002/jcp.22507] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Even though the involvement of intracellular Ca(2+) Ca(i)(2+) in hematopoiesis has been previously demonstrated, the relationship between Ca(i)(2+) signaling and cytokine-induced intracellular pathways remains poorly understood. Herein, the molecular mechanisms integrating Ca(2+) signaling with the extracellular signal-regulated kinase 1/2 (ERK1/2) pathway in primary murine and human hematopoietic stem/progenitor cells stimulated by IL-3 and GM-CSF were studied. Our results demonstrated that IL-3 and GM-CSF stimulation induced increased inositol 1,4,5-trisphosphate (IP(3) ) levels and Ca(i)(2+) release in murine and human hematopoietic stem/progenitor cells. In addition, Ca(i)(2+) signaling inhibitors, such as inositol 1,4,5-trisphosphate receptor antagonist (2-APB), PKC inhibitor (GF109203), and CaMKII inhibitor (KN-62), blocked phosphorylation of MEK activated by IL-3 and GM-CSF, suggesting the participation of Ca(2+) -dependent kinases in MEK activation. In addition, we identify phospholipase Cγ2 (PLCγ2) as a PLCγ responsible for the induction of Ca(2+) release by IL-3 and GM-CSF in hematopoietic stem/progenitor cells. Furthermore, the PLCγ inhibitor U73122 significantly reduced the numbers of granulocyte-macrophage colony-forming units after cytokine stimulation. Similar results were obtained in both murine and human hematopoietic stem/progenitor cells. Taken together, these data indicate a role for PLCγ2 and Ca(2+) signaling through the modulation of MEK in both murine and human hematopoietic stem/progenitor cells.
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Affiliation(s)
- Carlos M M P Leon
- Departamento de Biofísica, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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20
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Siegler U, Meyer-Monard S, Jörger S, Stern M, Tichelli A, Gratwohl A, Wodnar-Filipowicz A, Kalberer CP. Good manufacturing practice-compliant cell sorting and large-scale expansion of single KIR-positive alloreactive human natural killer cells for multiple infusions to leukemia patients. Cytotherapy 2011; 12:750-63. [PMID: 20491532 DOI: 10.3109/14653241003786155] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND AIMS Alloreactive natural killer (NK) cells are potent effectors of innate anti-tumor defense. The introduction of NK cell-based immunotherapy to current treatment options in acute myeloid leukemia (AML) requires NK cell products with high anti-leukemic efficacy optimized for clinical use. METHODS We describe a good manufacturing practice (GMP)-compliant protocol of large-scale ex vivo expansion of alloreactive NK cells suitable for multiple donor lymphocyte infusions (NK-DLI) in AML. CliniMACS-purified NK cells were cultured in closed air-permeable culture bags with certified culture medium and components approved for human use [human serum, interleukin (IL)-2, IL-15 and anti-CD3 antibody] and with autologous irradiated feeder cells. RESULTS NK cells (6.0 ± 1.2 x 10(8)) were purified from leukaphereses (8.1 ± 0.8 L) of six healthy donors and cultured under GMP conditions. NK cell numbers increased 117.0 ± 20.0-fold in 19 days. To reduce the culture volume associated with expansion of bulk NK cells and to expand selectively the alloreactive NK cell subsets, GMP-certified cell sorting was introduced to obtain cells with single killer immunoglobulin-like receptor (KIR) specificities. The subsequent GMP-compliant expansion of single KIR+ cells was 268.3 ± 66.8-fold, with a contaminating T-cell content of only 0.006 ± 0.002%. The single KIR-expressing NK cells were cytotoxic against HLA-mismatched primary AML blasts in vitro and effectively reduced tumor cell load in vivo in NOD/SCID mice transplanted with human AML. CONCLUSIONS The approach to generating large numbers of GMP-grade alloreactive NK cells described here provides the basis for clinical efficacy trials of NK-DLI to complement and advance therapeutic strategies against human AML.
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Affiliation(s)
- Uwe Siegler
- Experimental Hematology, Department of Biomedicine, University Hospital Basel, Basel, Switzerland
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21
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Suck G, Koh MBC. Emerging natural killer cell immunotherapies: large-scale ex vivo production of highly potent anticancer effectors. Hematol Oncol Stem Cell Ther 2011; 3:135-42. [PMID: 20890071 DOI: 10.1016/s1658-3876(10)50024-4] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Natural killer (NK) cell therapies are emerging worldwide as promising anticancer treatments, exploiting the fast cytolytic action of NK effectors and their potentially broad applicability against a wide range of malignancies. Until recently, clinical protocols have mainly involved freshly isolated NK cells or short- term activated NK cells or lymphokine-activated killer (LAK) cells. However, overall effector numbers and their anticancer potencies remained restricted, which poses a limiting factor to clinical efficacy. Recent developments in the field aim to improve clinical trial designs by increasing effector to target cell ratios in vivo and by application of superior cytotoxic NK effectors. Large-scale production of clinical grade NK cells through long-term activation in ex vivo cultures are another novel means in achieving these goals. However, such procedures require compliance with the strict Good Manufacturing Practice (GMP) regulations to ensure quality and safety of the NK cell product. Although the overall number of new protocols still remains comparably low, some of the protocols are already translated into clinical use. Also striking is the diversity of the different protocols proposed. We highlight in this review the most recent developments in the NK cell field with a focus on long-term NK cell expansion. Critical issues relating to this novel and promising type of therapy are highlighted and discussed.
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Abstract
PURPOSE OF REVIEW After hematopoietic cell transplantation (HCT) donor-derived natural killer (NK) cells kill tumor cells to prevent relapse and mediate other beneficial clinical effects including control of infections without inducing graft-vs.-host disease (GVHD). Understanding the determinants of NK cell alloreactivity and function will support improvements in the design of HCT and adoptive cellular therapies. RECENT FINDINGS Refinements to the model of NK cell education or licensing have been made which will inform strategies to develop functional alloreactive NK cells for therapeutic use. Differences in NK cell function have been shown to be dependent on the nature of the stimuli. Recent advances have been made in our understanding of the role of activating NK receptors on education and outcome after HCT. The use of adoptively transferred NK cells to treat hematopoietic malignancies has been expanding. New approaches to modulate target sensitivity to NK cell-mediated killing are under development. SUMMARY NK cells play an important role in the therapeutic efficacy of HCT, with effects on control of infections, GVHD, engraftment and relapse prevention. Recent advances in our understanding of NK cell biology will support improvements in our ability to exploit NK cells to treat cancer.
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Abstract
Interferon-α (IFN-α), a type I IFN, is a well-known antitumoral agent. The investigation of its clinical properties in acute myeloid leukemia (AML) has been prompted by its pleiotropic antiproliferative and immune effects. So far, integration of IFN-α in the therapeutic arsenal against AML has been modest in view of the divergent results of clinical trials. Recent insights into the key pharmacokinetic determinants of the clinical efficacy of IFN along with advances in its pharmaceutical formulation, have sparked renewed interest in its use. This paper reviews the possible applicability of IFN-α in the treatment of AML and provides a rational basis to re-explore its efficacy in clinical trials.
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Lankester AC, Ball LM, Lang P, Handgretinger R. Immunotherapy in the context of hematopoietic stem cell transplantation: the emerging role of natural killer cells and mesenchymal stromal cells. Pediatr Clin North Am 2010; 57:97-121. [PMID: 20307714 DOI: 10.1016/j.pcl.2009.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immunotherapy in the context of hematopoietic stem cell transplantation has been dominated for many years by T-cell- and dendritic-cell-based treatment modalities. During the last decade, insight into the biology of natural killer (NK) cells and mesenchymal stromal cells (MSC) has rapidly increased and resulted in NK- and MSC-based therapeutic strategies in clinical practice. This article reviews current knowledge of the biology and clinical aspects of NK cells and MSC.
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Affiliation(s)
- Arjan C Lankester
- Department of Pediatrics, Leiden University Medical Centre, Albinusdreef 2, 2300 RC Leiden, The Netherlands.
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