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Liu J, Bai Y, Li Y, Li X, Luo K. Reprogramming the immunosuppressive tumor microenvironment through nanomedicine: an immunometabolism perspective. EBioMedicine 2024; 107:105301. [PMID: 39178747 PMCID: PMC11388279 DOI: 10.1016/j.ebiom.2024.105301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/29/2024] [Accepted: 08/08/2024] [Indexed: 08/26/2024] Open
Abstract
Increasing evidence indicates that immunotherapy is hindered by a hostile tumor microenvironment (TME) featured with deprivation of critical nutrients and pooling of immunosuppressive metabolites. Tumor cells and immunosuppressive cells outcompete immune effector cells for essential nutrients. Meanwhile, a wide range of tumor cell-derived toxic metabolites exerts negative impacts on anti-tumor immune response, diminishing the efficacy of immunotherapy. Nanomedicine with excellent targetability offers a novel approach to improving cancer immunotherapy via metabolically reprogramming the immunosuppressive TME. Herein, we review recent strategies of enhancing immunotherapeutic effects through rewiring tumor metabolism via nanomedicine. Attention is drawn on immunometabolic tactics for immune cells and stromal cells in the TME via nanomedicine. Additionally, we discuss future directions of developing metabolism-regulating nanomedicine for precise and efficacious cancer immunotherapy.
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Affiliation(s)
- Jieyu Liu
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yinan Bai
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Yinggang Li
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xiaoling Li
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China.
| | - Kui Luo
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China; Functional and Molecular Imaging Key Laboratory of Sichuan Province, Key Laboratory of Transplant Engineering and Immunology, NHC, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China.
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2
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Kusch N, Storm J, Macioszek A, Kisselmann E, Knabbe C, Kaltschmidt B, Kaltschmidt C. A Critical Role of Culture Medium Selection in Maximizing the Purity and Expansion of Natural Killer Cells. Cells 2024; 13:1148. [PMID: 38994999 PMCID: PMC11240826 DOI: 10.3390/cells13131148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/14/2024] [Accepted: 06/25/2024] [Indexed: 07/13/2024] Open
Abstract
Natural killer (NK) cells hold promise in cancer treatment due to their ability to spontaneously lyse cancer cells. For clinical use, high quantities of pure, functional NK cells are necessary. Combining adherence-based isolation with specialized media showed the unreliability of the isolation method, but demonstrated the superiority of the NK MACS® medium, particularly in suboptimal conditions. Neither human pooled serum, fetal calf serum (FCS), human platelet lysate, nor chemically defined serum replacement could substitute human AB serum. Interleukin (IL-)2, IL-15, IL-21, and combined CD2/NKp46 stimulation were assessed. IL-21 and CD2/NKp46 stimulation increased cytotoxicity, but reduced NK cell proliferation. IL-15 stimulation alone achieved the highest proliferation, but the more affordable IL-2 performed similarly. The RosetteSep™ human NK cell enrichment kit was effective for isolation, but the presence of peripheral blood mononuclear cells (PBMCs) in the culture enhanced NK cell proliferation, despite similar expression levels of CD16, NKp46, NKG2D, and ICAM-1. In line with this, purified NK cells cultured in NK MACS® medium with human AB serum and IL-2 demonstrated high cytotoxicity against primary glioblastoma stem cells.
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Affiliation(s)
- Neele Kusch
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
| | - Jonathan Storm
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
| | - Antonia Macioszek
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Ella Kisselmann
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
| | - Cornelius Knabbe
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
- Institute for Laboratory and Transfusion Medicine, Heart and Diabetes Centre NRW, Ruhr-University Bochum, 32545 Bad Oeynhausen, Germany
- Medical Faculty Ostwestfalen-Lippe, University of Bielefeld, 33615 Bielefeld, Germany
| | - Barbara Kaltschmidt
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
- Molecular Neurobiology, Bielefeld University, 33615 Bielefeld, Germany
| | - Christian Kaltschmidt
- Department of Cell Biology, Bielefeld University, 33615 Bielefeld, Germany
- Forschungsverbund BioMedizin Bielefeld/OWL FBMB e.V., 33617 Bielefeld, Germany
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3
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Preechanukul A, Saiprom N, Rochaikun K, Moonmueangsan B, Phunpang R, Ottiwet O, Kongphrai Y, Wapee S, Janon R, Dunachie S, Kronsteiner B, Chantratita N. Metabolic requirements of CD160 expressing memory-like NK cells in Gram-negative bacterial infection. Clin Transl Immunology 2024; 13:e1513. [PMID: 38957437 PMCID: PMC11218174 DOI: 10.1002/cti2.1513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 05/07/2024] [Accepted: 05/09/2024] [Indexed: 07/04/2024] Open
Abstract
Objective Unique metabolic requirements accompany the development and functional fates of immune cells. How cellular metabolism is important in natural killer (NK) cells and their memory-like differentiation in bacterial infections remains elusive. Methods Here, we utilise our established NK cell memory assay to investigate the metabolic requirement for memory-like NK cell formation and function in response to the Gram-negative intracellular bacteria Burkholderia pseudomallei (BP), the causative agent of melioidosis. Results We demonstrate that CD160+ memory-like NK cells upon BP stimulation upregulate glucose and amino acid transporters in a cohort of recovered melioidosis patients which is maintained at least 3-month post-hospital admission. Using an in vitro assay, human BP-specific CD160+ memory-like NK cells show metabolic priming including increased expression of glucose and amino acid transporters with elevated glucose uptake, increased mTOR activation and mitochondrial membrane potential upon BP re-stimulation. Antigen-specific and cytokine-induced IFN-γ production of this memory-like NK cell subset are highly dependent on oxidative phosphorylation (OXPHOS) with some dependency on glycolysis, whereas the formation of CD160+ memory-like NK cells in vitro is dependent on fatty acid oxidation and OXPHOS and further increased by metformin. Conclusion This study reveals the link between metabolism and cellular function of memory-like NK cells, which can be exploited for vaccine design and for monitoring protection against Gram-negative bacterial infection.
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Affiliation(s)
- Anucha Preechanukul
- Department of Microbiology and Immunology, Faculty of Tropical Medicine Mahidol University Bangkok Thailand
- Division of Infection and Immunity University College London London UK
| | - Natnaree Saiprom
- Department of Microbiology and Immunology, Faculty of Tropical Medicine Mahidol University Bangkok Thailand
| | - Kitilak Rochaikun
- Department of Microbiology and Immunology, Faculty of Tropical Medicine Mahidol University Bangkok Thailand
| | - Boonthanom Moonmueangsan
- Department of Microbiology and Immunology, Faculty of Tropical Medicine Mahidol University Bangkok Thailand
| | - Rungnapa Phunpang
- Department of Microbiology and Immunology, Faculty of Tropical Medicine Mahidol University Bangkok Thailand
| | - Orawan Ottiwet
- Department of Medical Technology and Clinical Pathology Mukdahan Hospital Mukdahan Thailand
| | - Yuphin Kongphrai
- Department of Medical Technology and Clinical Pathology Mukdahan Hospital Mukdahan Thailand
| | - Soonthon Wapee
- Department of Medical Technology and Clinical Pathology Mukdahan Hospital Mukdahan Thailand
| | - Rachan Janon
- Department of Medicine Mukdahan Hospital Mukdahan Thailand
| | - Susanna Dunachie
- Mahidol-Oxford Tropical Medicine Research Unit Mahidol University Bangkok Thailand
- Peter Medawar Building for Pathogen Research, Nuffield Department of Clinical Medicine University of Oxford Oxford UK
- Nuffield Department of Clinical Medicine, NDM Centre for Global Health Research University of Oxford Oxford UK
- Oxford University Hospitals NHS Foundation Trust Oxford UK
| | - Barbara Kronsteiner
- Peter Medawar Building for Pathogen Research, Nuffield Department of Clinical Medicine University of Oxford Oxford UK
- Nuffield Department of Clinical Medicine, NDM Centre for Global Health Research University of Oxford Oxford UK
| | - Narisara Chantratita
- Department of Microbiology and Immunology, Faculty of Tropical Medicine Mahidol University Bangkok Thailand
- Mahidol-Oxford Tropical Medicine Research Unit Mahidol University Bangkok Thailand
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Vick LV, Rosario S, Riess JW, Canter RJ, Mukherjee S, Monjazeb AM, Murphy WJ. Potential roles of sex-linked differences in obesity and cancer immunotherapy: revisiting the obesity paradox. NPJ METABOLIC HEALTH AND DISEASE 2024; 2:5. [PMID: 38800540 PMCID: PMC11116109 DOI: 10.1038/s44324-024-00007-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 04/08/2024] [Indexed: 05/29/2024]
Abstract
Obesity, a condition of excess adiposity usually defined by a BMI > 30, can have profound effects on both metabolism and immunity, connecting the condition with a broad range of diseases, including cancer and negative outcomes. Obesity and cancer have been associated with increased incidence, progression, and poorer outcomes of multiple cancer types in part due to the pro-inflammatory state that arises. Surprisingly, obesity has also recently been demonstrated in both preclinical models and clinical outcomes to be associated with improved response to immune checkpoint inhibition (ICI). These observations have laid the foundation for what has been termed the "obesity paradox". The mechanisms underlying these augmented immunotherapy responses are still unclear given the pleiotropic effects obesity exerts on cells and tissues. Other important variables such as age and sex are being examined as further affecting the obesity effect. Sex-linked factors exert significant influences on obesity biology, metabolism as well as differential effects of different immune cell-types. Age can be another confounding factor contributing to the effects on both sex-linked changes, immune status, and obesity. This review aims to revisit the current body of literature describing the immune and metabolic changes mediated by obesity, the role of obesity on cancer immunotherapy, and to highlight questions on how sex-linked differences may influence obesity and immunotherapy outcome.
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Affiliation(s)
- Logan V. Vick
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA USA
| | - Spencer Rosario
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, NY USA
- Pharmacology and Therapeutics, Roswell Park Comprehensive Cancer Center, Buffalo, NY USA
| | - Jonathan W. Riess
- Department of Medicine, Division of Hematology/Oncology, UC Davis Comprehensive Cancer Center, Sacramento, CA USA
| | - Robert J. Canter
- Department of Surgery, Division of Surgical Oncology, University of California Davis Comprehensive Cancer Center, University of California Davis School of Medicine, Sacramento, CA USA
| | - Sarbajit Mukherjee
- Department of Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, NY USA
| | - Arta M. Monjazeb
- Department of Radiation Oncology, University of California Davis Comprehensive Cancer Center, University of California School of Medicine, Sacramento, CA USA
| | - William J. Murphy
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA USA
- Department of Internal Medicine, Division of Malignant Hematology, Cellular Therapy and Transplantation, University of California Davis School of Medicine, Sacramento, CA USA
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Oyer JL, Croom-Perez TJ, Hasan MF, Rivera-Huertas JA, Gitto SB, Mucha JM, Zhu X, Altomare DA, Igarashi RY, Copik AJ. PM21-particle stimulation augmented with cytokines enhances NK cell expansion and confers memory-like characteristics with enhanced survival. Front Immunol 2024; 15:1383281. [PMID: 38711506 PMCID: PMC11070970 DOI: 10.3389/fimmu.2024.1383281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Accepted: 04/02/2024] [Indexed: 05/08/2024] Open
Abstract
NK cell therapeutics have gained significant attention as a potential cancer treatment. Towards therapeutic use, NK cells need to be activated and expanded to attain high potency and large quantities for an effective dosage. This is typically done by ex vivo stimulation with cytokines to enhance functionality or expansion for 10-14 days to increase both their activity and quantity. Attaining a robust methodology to produce large doses of potent NK cells for an off-the-shelf product is highly desirable. Notably, past reports have shown that stimulating NK cells with IL-12, IL-15, and IL-18 endows them with memory-like properties, better anti-tumor activity, and persistence. While this approach produces NK cells with clinically favorable characteristics supported by encouraging early results for the treatment of hematological malignancies, its limited scalability, variability in initial doses, and the necessity for patient-specific production hinder its broader application. In this study, stimulation of NK cells with PM21-particles derived from K562-41BBL-mbIL21 cells was combined with memory-like induction using cytokines IL-12, IL-15, and IL-18 to produce NK cells with enhanced anti-tumor function. The use of cytokines combined with PM21-particles (cytokine and particle, CAP) significantly enhanced NK cell expansion, achieving a remarkable 8,200-fold in 14 days. Mechanistically, this significant improvement over expansion with PM21-particles alone was due to the upregulation of receptors for key stimulating ligands (4-1BBL and IL-2), resulting in a synergy that drives substantial NK cell growth, showcasing the potential for more effective therapeutic applications. The therapeutic potential of CAP-NK cells was demonstrated by the enhanced metabolic fitness, persistence, and anti-tumor function both in vitro and in vivo. Finally, CAP-NK cells were amenable to current technologies used in developing therapeutic NK cell products, including CRISPR/Cas9-based techniques to generate a triple-gene knockout or a gene knock-in. Taken together, these data demonstrate that the addition of cytokines enhanced the already effective method of ex vivo generation of therapeutic NK cells with PM21-particles, yielding a superior NK cell product for manufacturing efficiency and potential therapeutic applications.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Alicja J. Copik
- Burnett School of Biomedical Science, College of Medicine, University of Central Florida, Orlando, FL, United States
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Bakhtiyaridovvombaygi M, Yazdanparast S, Mikanik F, Izadpanah A, Parkhideh S, Shahbaz Ghasabeh A, Roshandel E, Hajifathali A, Gharehbaghian A. Cytokine-Induced Memory-Like NK Cells: Emerging strategy for AML immunotherapy. Biomed Pharmacother 2023; 168:115718. [PMID: 37857247 DOI: 10.1016/j.biopha.2023.115718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease developed from the malignant expansion of myeloid precursor cells in the bone marrow and peripheral blood. The implementation of intensive chemotherapy and hematopoietic stem cell transplantation (HSCT) has improved outcomes associated with AML, but relapse, along with suboptimal outcomes, is still a common scenario. In the past few years, exploring new therapeutic strategies to optimize treatment outcomes has occurred rapidly. In this regard, natural killer (NK) cell-based immunotherapy has attracted clinical interest due to its critical role in immunosurveillance and their capabilities to target AML blasts. NK cells are cytotoxic innate lymphoid cells that mediate anti-viral and anti-tumor responses by producing pro-inflammatory cytokines and directly inducing cytotoxicity. Although NK cells are well known as short-lived innate immune cells with non-specific responses that have limited their clinical applications, the discovery of cytokine-induced memory-like (CIML) NK cells could overcome these challenges. NK cells pre-activated with the cytokine combination IL-12/15/18 achieved a long-term life span with adaptive immunity characteristics, termed CIML-NK cells. Previous studies documented that using CIML-NK cells in cancer treatment is safe and results in promising outcomes. This review highlights the current application, challenges, and opportunities of CIML-NK cell-based therapy in AML.
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Affiliation(s)
- Mehdi Bakhtiyaridovvombaygi
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Yazdanparast
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mikanik
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amirhossein Izadpanah
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sahar Parkhideh
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amin Shahbaz Ghasabeh
- Department of Hematology and Blood Bank, School of Allied Medical Science, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Elham Roshandel
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Abbas Hajifathali
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Ahmad Gharehbaghian
- Department of Hematology and Blood Bank, School of Allied Medical Science, Shahid Beheshti University of Medical Science, Tehran, Iran; Pediatric Congenital Hematologic Disorders Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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7
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Schimmer S, Mittermüller D, Werner T, Görs PE, Meckelmann SW, Finlay DK, Dittmer U, Littwitz-Salomon E. Fatty acids are crucial to fuel NK cells upon acute retrovirus infection. Front Immunol 2023; 14:1296355. [PMID: 38094304 PMCID: PMC10716207 DOI: 10.3389/fimmu.2023.1296355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/14/2023] [Indexed: 12/18/2023] Open
Abstract
Natural killer (NK) cells are cytotoxic innate immune cells, able to recognize and eliminate virus-infected as well as cancer cells. Metabolic reprogramming is crucial for their activity as they have enhanced energy and nutritional demands for their functions during an infection. Fatty acids (FAs) represent an important source of cellular energy and are essential for proliferation of immune cells. However, the precise role of FAs for NK cells activity in retrovirus infection was unknown. Here we show that activated NK cells increase the expression of the FA uptake receptor CD36 and subsequently the uptake of FAs upon acute virus infection. We found an enhanced flexibility of NK cells to utilize FAs as source of energy compare to naïve NK cells. NK cells that were able to generate energy from FAs showed an augmented target cell killing and increased expression of cytotoxic parameters. However, NK cells that were unable to generate energy from FAs exhibited a severely decreased migratory capacity. Our results demonstrate that NK cells require FAs in order to fight acute virus infection. Susceptibility to severe virus infections as it is shown for people with malnutrition may be augmented by defects in the FA processing machinery, which might be a target to therapeutically boost NK cell functions in the future.
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Affiliation(s)
- Simone Schimmer
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Daniela Mittermüller
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Institute for Experimental Immunology and Imaging, University Hospital Essen, University of Duisburg Essen, Essen, Germany
| | - Tanja Werner
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Paul E. Görs
- Applied Analytical Chemistry, University of Duisburg‐Essen, Essen, Germany
| | - Sven W. Meckelmann
- Applied Analytical Chemistry, University of Duisburg‐Essen, Essen, Germany
| | - David K. Finlay
- School of Biochemistry and Immunology, School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Ulf Dittmer
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Elisabeth Littwitz-Salomon
- Institute for Virology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Institute for Translational HIV Research, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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8
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Vick LV, Canter RJ, Monjazeb AM, Murphy WJ. Multifaceted effects of obesity on cancer immunotherapies: Bridging preclinical models and clinical data. Semin Cancer Biol 2023; 95:88-102. [PMID: 37499846 PMCID: PMC10836337 DOI: 10.1016/j.semcancer.2023.07.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/04/2023] [Accepted: 07/24/2023] [Indexed: 07/29/2023]
Abstract
Obesity, defined by excessive body fat, is a highly complex condition affecting numerous physiological processes, such as metabolism, proliferation, and cellular homeostasis. These multifaceted effects impact cells and tissues throughout the host, including immune cells as well as cancer biology. Because of the multifaceted nature of obesity, common parameters used to define it (such as body mass index in humans) can be problematic, and more nuanced methods are needed to characterize the pleiotropic metabolic effects of obesity. Obesity is well-accepted as an overall negative prognostic factor for cancer incidence, progression, and outcome. This is in part due to the meta-inflammatory and immunosuppressive effects of obesity. Immunotherapy is increasingly used in cancer therapy, and there are many different types of immunotherapy approaches. The effects of obesity on immunotherapy have only recently been studied with the demonstration of an "obesity paradox", in which some immune therapies have been demonstrated to result in greater efficacy in obese subjects despite the direct adverse effects of obesity and excess body fat acting on the cancer itself. The multifactorial characteristics that influence the effects of obesity (age, sex, lean muscle mass, underlying metabolic conditions and drugs) further confound interpretation of clinical data and necessitate the use of more relevant preclinical models mirroring these variables in the human scenario. Such models will allow for more nuanced mechanistic assessment of how obesity can impact, both positively and negatively, cancer biology, host metabolism, immune regulation, and how these intersecting processes impact the delivery and outcome of cancer immunotherapy.
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Affiliation(s)
- Logan V Vick
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Robert J Canter
- Department of Surgery, Division of Surgical Oncology, University of California Davis Comprehensive Cancer Center, University of California Davis School of Medicine, Sacramento, CA, USA
| | - Arta M Monjazeb
- Department of Radiation Oncology, University of California Davis Comprehensive Cancer Center, University of California School of Medicine, Sacramento, CA, USA
| | - William J Murphy
- Department of Dermatology, University of California Davis School of Medicine, Sacramento, CA, USA; Department of Internal Medicine, Division of Malignant Hematology, Cellular Therapy and Transplantation, University of California Davis School of Medicine, Sacramento, CA, USA.
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9
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De Barra C, O'Shea D, Hogan AE. NK cells vs. obesity: A tale of dysfunction & redemption. Clin Immunol 2023; 255:109744. [PMID: 37604354 DOI: 10.1016/j.clim.2023.109744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/08/2023] [Accepted: 08/15/2023] [Indexed: 08/23/2023]
Abstract
Natural killer (NK) cells are critical in protecting the body against infection and cancer. NK cells can rapidly respond to these threats by directly targeting the infected or transformed cell using their cytotoxic machinery or by initiating and amplifying the immune response via their production of cytokines. Additionally, NK cells are resident across many tissues including adipose, were their role extends from host protection to tissue homeostasis. Adipose resident NK cells can control macrophage polarization via cytokine production, whilst also regulating stressed adipocyte fate using their cytotoxic machinery. Obesity is strongly associated with increased rates of cancer and a heightened susceptibility to severe infections. This is in part due to significant obesity-related immune dysregulation, including defects in both peripheral and adipose tissue NK cells. In this review, we detail the literature to date on NK cells in the setting of obesity - outlining the consequences, mechanisms and therapeutic interventions.
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Affiliation(s)
- Conor De Barra
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland
| | - Donal O'Shea
- Obesity Immunology Group, Education and Research Centre, St Vincent's University Hospital, University College, Dublin 4, Ireland
| | - Andrew E Hogan
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co Kildare, Ireland; National Children's Research Centre, Dublin 12, Ireland.
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10
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Al B, Suen TK, Placek K, Netea MG. Innate (learned) memory. J Allergy Clin Immunol 2023; 152:551-566. [PMID: 37385546 DOI: 10.1016/j.jaci.2023.06.014] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/24/2023] [Accepted: 06/01/2023] [Indexed: 07/01/2023]
Abstract
With the growing body of evidence, it is now clear that not only adaptive immune cells but also innate immune cells can mount a more rapid and potent nonspecific immune response to subsequent exposures. This process is known as trained immunity or innate (learned) immune memory. This review discusses the different immune and nonimmune cell types of the central and peripheral immune systems that can develop trained immunity. This review highlights the intracellular signaling and metabolic and epigenetic mechanisms underlying the formation of innate immune memory. Finally, this review explores the health implications together with the potential therapeutic interventions harnessing trained immunity.
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Affiliation(s)
- Burcu Al
- Department of Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn
| | - Tsz K Suen
- Department of Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn
| | - Katarzyna Placek
- Department of Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn
| | - Mihai G Netea
- Department of Molecular Immunology and Cell Biology, Life and Medical Sciences Institute, University of Bonn; Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen.
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11
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Szilveszter M, Pál S, Simon-Szabó Z, Akácsos-Szász OZ, Moldován M, Réger B, Dénes L, Faust Z, Tilinca MC, Nemes-Nagy E. The Management of COVID-19-Related Coagulopathy: A Focus on the Challenges of Metabolic and Vascular Diseases. Int J Mol Sci 2023; 24:12782. [PMID: 37628963 PMCID: PMC10454092 DOI: 10.3390/ijms241612782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/07/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
The course of COVID-19 is highly dependent on the associated cardiometabolic comorbidities of the patient, which worsen the prognosis of coronavirus infection, mainly due to systemic inflammation, endothelium dysfunction, and thrombosis. A search on the recent medical literature was performed in five languages, using the PubMed, Embase, Cochrane, and Google Scholar databases, for the review of data regarding the management of patients with a high risk for severe COVID-19, focusing on the associated coagulopathy. Special features of COVID-19 management are presented, based on the underlying conditions (obesity, diabetes mellitus, and cardiovascular diseases), emphasizing the necessity of a modern, holistic approach to thromboembolic states. The latest findings regarding the most efficient therapeutic approaches are included in the article, offering guidance for medical professionals in severe, complicated cases of SARS-CoV-2 infection. We can conclude that severe COVID-19 is closely related to vascular inflammation and intense cytokine release leading to hemostasis disorders. Overweight, hyperglycemia, cardiovascular diseases, and old age are important risk factors for severe outcomes of coronavirus infection, involving a hypercoagulable state. Early diagnosis and proper therapy in complicated SARS-CoV-2-infected cases could reduce mortality and the need for intensive care during hospitalization in patients with cardiometabolic comorbidities.
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Affiliation(s)
- Mónika Szilveszter
- Clinic of Plastic Surgery, Mureș County Emergency Hospital, 540136 Târgu-Mureș, Romania;
| | - Sándor Pál
- Department of Transfusion Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary;
| | - Zsuzsánna Simon-Szabó
- Department of Pathophysiology, Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu-Mureș, 540142 Târgu-Mureș, Romania
| | - Orsolya-Zsuzsa Akácsos-Szász
- Doctoral School, Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu-Mureș, 540142 Târgu-Mureș, Romania;
| | - Mihály Moldován
- Klinik für Suchttherapie, ZtP Winnenden-Haus der Gesundheit, 73525 Schwäbisch Gümund, Germany;
| | - Barbara Réger
- Department of Laboratory Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary;
| | - Lóránd Dénes
- Department of Anatomy and Embryology, Faculty of Medicine, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu-Mureș, 540142 Târgu-Mureș, Romania;
| | - Zsuzsanna Faust
- Department of Transfusion Medicine, Medical School, University of Pécs, 7624 Pécs, Hungary;
| | - Mariana Cornelia Tilinca
- Department of Internal Medicine I, Faculty of Medicine in English, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu-Mureș, 540142 Târgu-Mureș, Romania;
| | - Enikő Nemes-Nagy
- Department of Chemistry and Medical Biochemistry, Faculty of Medicine in English, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Târgu-Mureș, 540142 Târgu-Mureș, Romania;
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12
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De Barra C, Khalil M, Mat A, O'Donnell C, Shaamile F, Brennan K, O'Shea D, Hogan AE. Glucagon-like peptide-1 therapy in people with obesity restores natural killer cell metabolism and effector function. Obesity (Silver Spring) 2023. [PMID: 37157931 DOI: 10.1002/oby.23772] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/12/2023] [Accepted: 02/07/2023] [Indexed: 05/10/2023]
Abstract
OBJECTIVE People with obesity (PWO) have functionally defective natural killer (NK) cells, with a decreased capacity to produce cytokines and kill target cells, underpinned by defective cellular metabolism. It is plausible that the changes in peripheral NK cell activity are contributing to the multimorbidity in PWO, which includes an increased risk of cancer. This study investigated whether therapy with long-acting glucagon-like peptide-1 (GLP-1) analogues, which are an effective treatment for obesity, could restore NK cell functionality in PWO. METHODS In a cohort of 20 PWO, this study investigated whether 6 months of once weekly GLP-1 therapy (semaglutide) could restore human NK cell function and metabolism using multicolor flow cytometry, enzyme-linked immunosorbent assays, and cytotoxicity assays. RESULTS These data demonstrate that PWO who received GLP-1 therapy have improved NK cell function, as measured by cytotoxicity and interferon-γ/granzyme B production. In addition, the study demonstrates increases in a CD98-mTOR-glycolysis metabolic axis, which is critical for NK cell cytokine production. Finally, it shows that the reported improvements in NK cell function appear to be independent of weight loss. CONCLUSIONS The restoration, by GLP-1 therapy, of NK cell functionality in PWO may be contributing to the overall benefits being seen with this class of medication.
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Affiliation(s)
- Conor De Barra
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, County Kildare, Ireland
| | - Mohammed Khalil
- St Vincent's University Hospital & University College Dublin, Dublin 4, Ireland
| | - Arimin Mat
- St Vincent's University Hospital & University College Dublin, Dublin 4, Ireland
| | - Cliona O'Donnell
- St Vincent's University Hospital & University College Dublin, Dublin 4, Ireland
| | - Ferrah Shaamile
- St Vincent's University Hospital & University College Dublin, Dublin 4, Ireland
| | | | - Donal O'Shea
- St Vincent's University Hospital & University College Dublin, Dublin 4, Ireland
| | - Andrew E Hogan
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, County Kildare, Ireland
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13
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Metabolic regulation of NK cell function: implications for immunotherapy. IMMUNOMETABOLISM (COBHAM (SURREY, ENGLAND)) 2023; 5:e00020. [PMID: 36710923 PMCID: PMC9869966 DOI: 10.1097/in9.0000000000000020] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/21/2022] [Indexed: 01/31/2023]
Abstract
Natural killer (NK) cells are innate immune lymphocytes capable of rapidly responding to tumors and infection without prior sensitization. There is increasing interest and success in harnessing NK cell function for the treatment of disease, in particular cancers. NK cell activation is dependent on integration of signals through cytokine and germline-encoded activating and inhibitory receptors. The availability of metabolic fuels and pathways is required for NK effector functions including proliferation, killing, and production of interferon gamma (IFN-γ). An understanding of NK cell immunometabolism is thus essential for developing immunotherapy approaches that will allow for optimal effector functions in patients. Studies in mice and humans have demonstrated stimulation-dependent metabolic changes that are required for NK cell function. Here we review the most recent findings in NK cell immunometabolism relevant to disease models and translation to therapy of patients.
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14
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Murphy DM, Cox DJ, Connolly SA, Breen EP, Brugman AA, Phelan JJ, Keane J, Basdeo SA. Trained immunity is induced in humans after immunization with an adenoviral vector COVID-19 vaccine. J Clin Invest 2023; 133:e162581. [PMID: 36282571 PMCID: PMC9843058 DOI: 10.1172/jci162581] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 10/21/2022] [Indexed: 01/22/2023] Open
Abstract
BackgroundHeterologous effects of vaccines are mediated by "trained immunity," whereby myeloid cells are metabolically and epigenetically reprogrammed, resulting in heightened responses to subsequent insults. Adenovirus vaccine vector has been reported to induce trained immunity in mice. Therefore, we sought to determine whether the ChAdOx1 nCoV-19 vaccine (AZD1222), which uses an adenoviral vector, could induce trained immunity in vivo in humans.MethodsTen healthy volunteers donated blood on the day before receiving the ChAdOx1 nCoV-19 vaccine and on days 14, 56, and 83 after vaccination. Monocytes were purified from PBMCs, cell phenotype was determined by flow cytometry, expression of metabolic enzymes was quantified by RT-qPCR, and production of cytokines and chemokines in response to stimulation ex vivo was analyzed by multiplex ELISA.ResultsMonocyte frequency and count were increased in peripheral blood up to 3 months after vaccination compared with their own prevaccine controls. Expression of HLA-DR, CD40, and CD80 was enhanced on monocytes for up to 3 months following vaccination. Moreover, monocytes had increased expression of glycolysis-associated enzymes 2 months after vaccination. Upon stimulation ex vivo with unrelated antigens, monocytes produced increased IL-1β, IL-6, IL-10, CXCL1, and MIP-1α and decreased TNF, compared with prevaccine controls. Resting monocytes produced more IFN-γ, IL-18, and MCP-1 up to 3 months after vaccination compared with prevaccine controls.ConclusionThese data provide evidence for the induction of trained immunity following a single dose of the ChAdOx1 nCoV-19 vaccine.FundingThis work was funded by the Health Research Board (EIA-2019-010) and Science Foundation Ireland Strategic Partnership Programme (proposal ID 20/SPP/3685).
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Affiliation(s)
| | - Donal J Cox
- Tuberculosis Immunology Group, Department of Clinical Medicine, and
| | | | - Eamon P Breen
- Core Facilities, Trinity Translational Medicine Institute, St. James's Hospital, Trinity College Dublin, The University of Dublin, Dublin, Ireland
| | - Aenea Ai Brugman
- Tuberculosis Immunology Group, Department of Clinical Medicine, and
| | - James J Phelan
- Tuberculosis Immunology Group, Department of Clinical Medicine, and
| | - Joseph Keane
- Tuberculosis Immunology Group, Department of Clinical Medicine, and
| | - Sharee A Basdeo
- Human and Translational Immunology Group, School of Medicine
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15
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Natural killer cell awakening: unleash cancer-immunity cycle against glioblastoma. Cell Death Dis 2022; 13:588. [PMID: 35803912 PMCID: PMC9270460 DOI: 10.1038/s41419-022-05041-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/25/2022] [Accepted: 06/27/2022] [Indexed: 01/21/2023]
Abstract
Due to the negligence of the complex tumor immune microenvironment, traditional treatment for glioblastoma has reached its limitation and cannot achieve a satisfying outcome in the past decade. The emergence of immunotherapy based on the theory of cancer-immunity cycle has brought a new dawn to glioblastoma patients. However, the results of most phase II and phase III clinical trials are not optimistic due to the simple focus on T cells activation rather than other immune cells involved in anti-tumor immunity. NK cells play a critical role in both innate and adaptive immunity, having the ability to coordinate immune response in inflammation, autoimmune disease and cancer. They are expected to cooperate with T cells to maximize the anti-tumor immune effect and have great potential in treating glioblastoma. Here, we describe the traditional treatment methods and current immunotherapy strategies for glioblastoma. Then, we list a microenvironment map and discuss the reasons for glioblastoma inhibitory immunity from multiple perspectives. More importantly, we focus on the advantages of NK cells as potential immune regulatory cells and the ways to maximize their anti-tumor immune effect. Finally, our outlook on the directions and potential applications of NK cell-based therapy combining with the advance technologies is presented. This review depicts NK cell awakening as the precondition to unleash the cancer-immunity cycle against glioblastoma and elaborate this idea from biology to clinical treatment.
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16
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Boland L, Bitterlich LM, Hogan AE, Ankrum JA, English K. Translating MSC Therapy in the Age of Obesity. Front Immunol 2022; 13:943333. [PMID: 35860241 PMCID: PMC9289617 DOI: 10.3389/fimmu.2022.943333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/10/2022] [Indexed: 12/19/2022] Open
Abstract
Mesenchymal stromal cell (MSC) therapy has seen increased attention as a possible option to treat a number of inflammatory conditions including COVID-19 acute respiratory distress syndrome (ARDS). As rates of obesity and metabolic disease continue to rise worldwide, increasing proportions of patients treated with MSC therapy will be living with obesity. The obese environment poses critical challenges for immunomodulatory therapies that should be accounted for during development and testing of MSCs. In this review, we look to cancer immunotherapy as a model for the challenges MSCs may face in obese environments. We then outline current evidence that obesity alters MSC immunomodulatory function, drastically modifies the host immune system, and therefore reshapes interactions between MSCs and immune cells. Finally, we argue that obese environments may alter essential features of allogeneic MSCs and offer potential strategies for licensing of MSCs to enhance their efficacy in the obese microenvironment. Our aim is to combine insights from basic research in MSC biology and clinical trials to inform new strategies to ensure MSC therapy is effective for a broad range of patients.
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Affiliation(s)
- Lauren Boland
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA, United States
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, United States
| | - Laura Melanie Bitterlich
- Biology Department, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth, Ireland
| | - Andrew E. Hogan
- Biology Department, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth, Ireland
| | - James A. Ankrum
- Roy J. Carver Department of Biomedical Engineering, University of Iowa, Iowa City, IA, United States
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, United States
- *Correspondence: James A. Ankrum, ; Karen English,
| | - Karen English
- Biology Department, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth, Ireland
- *Correspondence: James A. Ankrum, ; Karen English,
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17
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Surace L, Di Santo JP. Local and systemic features of ILC immunometabolism. Curr Opin Hematol 2022; 29:209-217. [PMID: 35787549 DOI: 10.1097/moh.0000000000000722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW Innate lymphoid cells (ILCs) are specialized immune cells that rapidly sense environmental perturbations and regulate immune responses and tissue homeostasis. ILCs are mainly tissue resident and their crosstalk within tissue microenvironments influences both local and systemic metabolism. Reciprocally, metabolic status conditions ILC phenotype and effector function. In this review, we discuss the role of ILCs as metabolic sentinels and describe how ILC subset-specific activities influence homeostasis and disease. Finally, we highlight emerging challenges in the field of ILC immunometabolism. RECENT FINDINGS Accumulating evidence suggests that ILCs metabolism, phenotype, and function are shaped by signals from the tissue microenvironment. Dietary, endogenous, and microbial metabolites are sensed by ILC subsets and can impact on ILC-mediated immune responses. Recent studies have found that mitochondria are central regulators of ILC effector function. Furthermore, ILCs have emerged as crucial sensors of metabolic stress, suggesting they might act as metabolic sentinels, coordinating tissue and host metabolism. SUMMARY Our understanding how ILCs mechanistically regulate host metabolism and defenses is still incomplete. Unraveling critical metabolic features of ILCs may lead to novel therapeutic strategies that target these cells in the context of disease.
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Affiliation(s)
- Laura Surace
- Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, , Bonn, Germany
| | - James P Di Santo
- Institut Pasteur, Université Paris Cité, Inserm, Paris, France
- Innate Immunity Unit, Institut Pasteur, Université Paris Cité, Inserm U1223, Paris, France
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18
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Terrén I, Orrantia A, Astarloa-Pando G, Amarilla-Irusta A, Zenarruzabeitia O, Borrego F. Cytokine-Induced Memory-Like NK Cells: From the Basics to Clinical Applications. Front Immunol 2022; 13:884648. [PMID: 35603208 PMCID: PMC9114299 DOI: 10.3389/fimmu.2022.884648] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are lymphocytes with a key role in the defense against viral infections and tumor cells. Although NK cells are classified as innate lymphoid cells (ILCs), under certain circumstances they exhibit adaptive and memory-like features. The latter may be achieved, among others, by a brief stimulation with interleukin (IL)-12, IL-15 and IL-18. These cytokine-induced memory-like (CIML) NK cells resemble the trained immunity observed in myeloid cells. CIML NK cells undergo transcriptional, epigenetic and metabolic reprogramming that, along with changes in the expression of cell surface receptors and components of cytotoxic granules, are responsible for their enhanced effector functions after a resting period. In addition, these memory-like NK cells persist for a long time, which make them a good candidate for cancer immunotherapy. Currently, several clinical trials are testing CIML NK cells infusions to treat tumors, mostly hematological malignancies. In relapse/refractory acute myeloid leukemia (AML), the adoptive transfer of CIML NK cells is safe and complete clinical remissions have been observed. In our review, we sought to summarize the current knowledge about the generation and molecular basis of NK cell memory-like responses and the up-to-date results from clinical trials with CIML NK cells.
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Affiliation(s)
- Iñigo Terrén
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Ane Orrantia
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | | | | | - Olatz Zenarruzabeitia
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Francisco Borrego
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Spain
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19
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Mylod E, Lysaght J, Conroy MJ. Natural killer cell therapy: A new frontier for obesity-associated cancer. Cancer Lett 2022; 535:215620. [PMID: 35283210 DOI: 10.1016/j.canlet.2022.215620] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/16/2022] [Accepted: 03/03/2022] [Indexed: 02/09/2023]
Abstract
Natural killer (NK) cell infiltration of solid tumours is associated with better outcomes, placing augmentation of NK cell abundance in tumours as an attractive immunotherapeutic approach. The unique ability of NK cells to target cancer cells without antigen specificity increases their versatility and applicability as an immunotherapeutic tool. However, successful utilisation of NK cell-based therapies in solid tumours is still at an early stage. Obesity has become a global health epidemic, and the prevalence of obesity-associated cancers has significantly increased. Obesity-associated malignancies provide a unique challenge for the successful application of cell-based immunotherapies including NK cell-based therapies because significant numbers of NK and T cells are recruited to the visceral adipose tissue at the expense of successful tumour infiltration and eradication. As such, immunotherapy efficacy has been disappointing for obesity-associated malignancies such as oesophageal and gastric adenocarcinoma. Therefore, immunotherapies for obesity-associated cancers warrant our further attention. Indeed, it is becoming ever more obvious that more innovative approaches are needed to re-invigorate anti-tumour immunity and overcome immune exclusion in such tumours. In this review, we briefly summarise the dysfunctionality of NK cells in obesity-associated cancer. We outline the NK cell-based immunotherapeutic approaches which hold promise as effective treatments in this disease space, including CAR-NK cells. Furthermore, we suggest future avenues which possess the potential to transform immunotherapy and specifically NK cell therapy efficacy for obesity-associated cancer.
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Affiliation(s)
- Eimear Mylod
- Cancer Immunology and Immunotherapy Group, Department of Surgery, Trinity Translational Medicine Institute and Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, 8, Ireland
| | - Joanne Lysaght
- Cancer Immunology and Immunotherapy Group, Department of Surgery, Trinity Translational Medicine Institute and Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, 8, Ireland
| | - Melissa J Conroy
- Cancer Immunology and Immunotherapy Group, Department of Surgery, Trinity Translational Medicine Institute and Trinity St. James's Cancer Institute, St. James's Hospital, Trinity College Dublin, Dublin, 8, Ireland; Cancer Immunology Research Group, Department of Physiology, School of Medicine, Trinity College Dublin, Dublin, 2, Ireland.
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