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Cox ST, Patterson W, Duggleby R, Jones OJR, Madrigal JA, Querol S, Salvador FR, Mata MJH, Volt F, Gluckman É, Szydlo R, Danby RD, Hernandez D. Impact of donor NKG2D and MICA gene polymorphism on clinical outcomes of adult and paediatric allogeneic cord blood transplantation for malignant diseases. Eur J Haematol 2024. [PMID: 38511389 DOI: 10.1111/ejh.14202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/09/2024] [Accepted: 02/16/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVES NKG2D is an activating receptor expressed by natural killer (NK) and CD8+ T cells and activation intensity varies by NKG2D expression level or nature of its ligand. An NKG2D gene polymorphism determines high (HNK1) or low (LNK1) expression. MICA is the most polymorphic NKG2D ligand and stronger effector cell activation associates with methionine rather than valine at residue 129. We investigated correlation between cord blood (CB) NKG2D and MICA genotypes and haematopoietic stem cell (HSC) transplant outcome. METHODS We retrospectively studied 267 CB HSC recipients (178 adult and 87 paediatric) who underwent transplant for malignant disease between 2007 and 2018, analysing CB graft DNA for NKG2D and MICA polymorphisms using Sanger sequencing. Multivariate analysis was used to correlate these results with transplant outcomes. RESULTS In adult patients, LNK1 homozygous CB significantly improved 60-day neutrophil engraftment (hazard ratio (HR) 0.6; 95% confidence interval (CI) 0.4-0.9; p = .003). In paediatrics, HNK1 homozygous CB improved 60-day engraftment (HR 0.4; 95% CI 0.2-0.7; p = .003), as did MICA-129 methionine+ CB grafts (HR 1.7 95% CI 1.1-2.6; p = .02). CONCLUSION CB NKG2D and MICA genotypes potentially improve CB HSC engraftment. However, results contrast between adult and paediatric recipients and may reflect transplant procedure disparities between cohorts.
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Affiliation(s)
- Steven T Cox
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
- UCL Cancer Institute, Royal Free Campus, London, UK
| | - Warren Patterson
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
| | - Richard Duggleby
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
- UCL Cancer Institute, Royal Free Campus, London, UK
| | - Owen J R Jones
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
| | | | | | | | | | - Fernanda Volt
- Eurocord, Hôpital Saint Louis APHP, Institut de Recherche de Saint-Louis (IRSL) EA3518, Université de Paris Cité, Paris, France
| | - Éliane Gluckman
- Eurocord, Hôpital Saint Louis APHP, Institut de Recherche de Saint-Louis (IRSL) EA3518, Université de Paris Cité, Paris, France
| | - Richard Szydlo
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
- Department of Immunology and Inflammation, Imperial College London, London, UK
| | - Robert D Danby
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
- UCL Cancer Institute, Royal Free Campus, London, UK
- Churchill Hospital, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Diana Hernandez
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK
- UCL Cancer Institute, Royal Free Campus, London, UK
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Kim EY, Yoon YC, Hong TH. The role of natural killer cell activity as a milestone in oncologic outcome after curative resection of pancreatic adenocarcinoma. J Surg Oncol 2023; 128:1353-1364. [PMID: 37650829 DOI: 10.1002/jso.27432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 08/15/2023] [Accepted: 08/18/2023] [Indexed: 09/01/2023]
Abstract
BACKGROUND The objective of this study was to investigate differences in oncologic outcomes of patients with pancreas cancer according to natural killer cell activity (NKA). METHODS A total of 118 patients who underwent curative resection for primary pancreas cancer in two hospitals were analyzed. NKA change pattern was analyzed. Difference in disease-free survival or overall survival was investigated by dividing subjects into two groups based on a normal NKA value for each period. RESULTS NKA value decreased after surgery compared to the value measured at admission. It recovered to normal levels at 5 weeks postoperatively. The low NKA (less than 250 pg/mL) group at admission, 5 weeks postoperatively, and before 1st chemotherapy had significantly poorer disease-free survival than the normal NKA group. In multivariate analysis, NKA values less than 250 pg/mL at admission (odds ratio = 2.267, p = 0.023) and N 1 or N2 category (odds ratio = 2.478, p = 0.023) were significant factors associated with recurrence after curative resection. CONCLUSIONS NKA in patients with pancreatic cancer demonstrated noticeable changes after surgery. Immunologically predisposed patients with a low NKA value had a high risk of early recurrence and a poor prognosis, although pancreatic cancer was surgically removed.
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Affiliation(s)
- Eun Young Kim
- Division of Trauma and Surgical Critical Care, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Young Chul Yoon
- Division of Hepatobiliary, Pancreas, and Abdominal Organ Transplant, Department of Surgery, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
| | - Tae Ho Hong
- Division of Hepatobiliary and Pancreas Surgery, Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, South Korea
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Iakovliev A, McGurnaghan SJ, Hayward C, Colombo M, Lipschutz D, Spiliopoulou A, Colhoun HM, McKeigue PM. Genome-wide aggregated trans-effects on risk of type 1 diabetes: A test of the "omnigenic" sparse effector hypothesis of complex trait genetics. Am J Hum Genet 2023; 110:913-926. [PMID: 37164005 PMCID: PMC10257008 DOI: 10.1016/j.ajhg.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 04/12/2023] [Indexed: 05/12/2023] Open
Abstract
The "omnigenic" hypothesis postulates that the polygenic effects of common SNPs on a typical complex trait are mediated through trans-effects on expression of a relatively sparse set of effector ("core") genes. We tested this hypothesis in a study of 4,964 cases of type 1 diabetes (T1D) and 7,497 controls by using summary statistics to calculate aggregated (excluding the HLA region) trans-scores for gene expression in blood. From associations of T1D with aggregated trans-scores, nine putative core genes were identified, of which three-STAT1, CTLA4 and FOXP3-are genes in which variants cause monogenic forms of autoimmune diabetes. Seven of these genes affect the activity of regulatory T cells, and two are involved in immune responses to microbial lipids. Four T1D-associated genomic regions could be identified as master regulators via trans-effects on gene expression. These results support the sparse effector hypothesis and reshape our understanding of the genetic architecture of T1D.
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Affiliation(s)
- Andrii Iakovliev
- Usher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, Scotland
| | - Stuart J McGurnaghan
- Institute of Genetics and Cancer, College of Medicine and Veterinary Medicine, University of Edinburgh, Western General Hospital Campus, Crewe Road, Edinburgh EH4 2XUC, Scotland
| | - Caroline Hayward
- Institute of Genetics and Cancer, College of Medicine and Veterinary Medicine, University of Edinburgh, Western General Hospital Campus, Crewe Road, Edinburgh EH4 2XUC, Scotland
| | - Marco Colombo
- University of Leipzig, Medical Faculty, University Hospital for Children and Adolescents, Center for Pediatric Research, Leipzig, Germany
| | - Debby Lipschutz
- Institute of Genetics and Cancer, College of Medicine and Veterinary Medicine, University of Edinburgh, Western General Hospital Campus, Crewe Road, Edinburgh EH4 2XUC, Scotland
| | - Athina Spiliopoulou
- Usher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, Scotland
| | - Helen M Colhoun
- Institute of Genetics and Cancer, College of Medicine and Veterinary Medicine, University of Edinburgh, Western General Hospital Campus, Crewe Road, Edinburgh EH4 2XUC, Scotland
| | - Paul M McKeigue
- Usher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Teviot Place, Edinburgh EH8 9AG, Scotland.
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4
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Neo SY, Xu S, Chong J, Lam KP, Wu J. Harnessing novel strategies and cell types to overcome immune tolerance during adoptive cell therapy in cancer. J Immunother Cancer 2023; 11:jitc-2022-006434. [PMID: 37100458 PMCID: PMC10151952 DOI: 10.1136/jitc-2022-006434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2023] [Indexed: 04/28/2023] Open
Abstract
Cell therapy encompasses an expanding spectrum of cell-based regimes for the treatment of human ailments, such as the use of immune cells, in particular T cells, for combating tumors and the modulation of inflammatory immune responses. In this review, we focus on cell therapy in the immuno-oncology space, which is largely driven by interests and demands from the clinics for better solutions to target various hard-to-treat cancers. We discuss recent advances in various types of cell therapies, including T cell receptor-T cells, chimeric antigen receptor (CAR)-T cells, tumor-infiltrating lymphocytes and natural killer cells. Particularly, the present review focuses on the strategies to improve therapeutic responses by either enhancing tumor recognition or the resilience of infused immune cells within tumor microenvironment. Finally, we discuss the potential of other innate or innate-like immune cell types currently being explored as promising CAR-cell alternatives that seek to address the limitations of conventional adoptive cell therapies.
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Affiliation(s)
- Shi Yong Neo
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden
| | - Shengli Xu
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Joni Chong
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Kong-Peng Lam
- Singapore Immunology Network (SIgN), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
- School of Biological Sciences, Nanyang Technological University, Singapore, Republic of Singapore
- Department of Microbiology & Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Jing Wu
- Department of Pharmacy, The First Affiliated Hospital of Shandong First Medical University, Jinan, People's Republic of China
- Department of Pharmacy, Shandong Provincial Qianfoshan Hospital, Jinan, People's Republic of China
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TAO Z, WANG J, CHEN X, LI Y, YAN Y, ZHANG A, ZOU W, LIU Y. Wenshen Jianpi recipe induced immune reconstruction and redistribution of natural killer cell subsets in immunological non-responders of human immunodeficiency virus/acquired immune deficiency syndrome: a randomized controlled trial. J TRADIT CHIN MED 2022; 42:795-802. [PMID: 36083488 PMCID: PMC9924785 DOI: 10.19852/j.cnki.jtcm.20220519.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
Abstract
OBJECTIVE To evaluate the effects of the Wenshen Jianpi recipe (, WJR) on immune reconstruction and natural killer (NK) cells in immunological non-responders (INRs) of people living with human immunodeficiency virus (HIV) (PLWH) and propose new therapeutic strategies for HIV. METHODS Based on Traditional Chinese Medicine treatment principle "invigorating and warming in the spleen and kidneys", WJR combined with antire-troviral therapy (ART) therapy was performed in a randomized, double-blind, placebo-controlled study of 60 patients with non-responders. The randomized process was executed by the Clinical Evaluation Center of China Academy of Chinese Medical Sciences. Sixty patients who met the inclusion criteria obtained random numbers (that is the drug number) was randomly divided into a treatment group and a placebo control group according to a 1∶1 ratio. CD4+T cell counts and natural killer (NK) cells counts were evaluated at baseline and 12-week, 24-week follow-ups. RESULTS Four participants received random numbers and did not enter the group due to the patient's own reasons. A total of 56 patients were enrolled, including 28 in the treatment group and 28 in the control group. CD4+T cell counts in the treatment group were significantly increased at week 24 ( = 0.01 < 0.05), which were significantly higher than those in the control group (= 0.01 < 0.05). Although no significant differences were observed between two groups, the CD56briCD16- NK cell counts in the treatment group were significantly increased after duration. and CD56dimCD16+ NK cell counts in the treatment group were significantly higher than those in the control group after 24 weeks of treatment (= 0.025 < 0.05). As compared with the control group, the treatment group had significantly lower CD56negCD16+ NK cell counts after 24 weeks of treatment (= 0.023 < 0.05). CONCLUSIONS WJR promotes the immune reconstruction of INRs and redistribution of NK cell subsets, notably decreasing CD56negCD16+ NK cell counts in INRs. However, the redistribution of NK cell subsets is not beneficial for immune reconstruction in INRs. Further large-scale RCTs are required to evaluate the effect of WJR on immune recovery in INRs and decipher the underlying mechanism.
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Affiliation(s)
- Zhuang TAO
- 1 Research Center of AIDS Treatment with Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China; Institute of Basic Theory for Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Jian WANG
- 2 Research Center of AIDS Treatment with Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
| | - Xin CHEN
- 3 Department of Integrated Traditional Chinese and Wetern Medicine, Kunming Hospital of Traditional Chinese Medicine, Kunming 650000, China
| | - Yonghong LI
- 4 Department of Infection, No.6 People's Hospital of Shenyang City, Shenyang 110006, China
| | - Yuguang YAN
- 4 Department of Infection, No.6 People's Hospital of Shenyang City, Shenyang 110006, China
| | - Ao ZHANG
- 5 University of Chinese Academy of SoCIal SCIences, Beijing, 100102, China
| | - Wen ZOU
- 2 Research Center of AIDS Treatment with Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
- ZOU Wen, Research Center of AIDS Treatment with Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China.
| | - Ying LIU
- 2 Research Center of AIDS Treatment with Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China
- LIU Ying, Research Center of AIDS Treatment with Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China. Telephone: +86-13552252730; +86-13021985109
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Morton LT, Wachsmann TLA, Meeuwsen MH, Wouters AK, Remst DFG, van Loenen MM, Falkenburg JHF, Heemskerk MHM. T cell receptor engineering of primary NK cells to therapeutically target tumors and tumor immune evasion. J Immunother Cancer 2022; 10:jitc-2021-003715. [PMID: 35288464 PMCID: PMC8921915 DOI: 10.1136/jitc-2021-003715] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND T cell receptor (TCR)-engineered cells can be powerful tools in the treatment of malignancies. However, tumor resistance by Human Leukocyte antigen (HLA) class I downregulation can negatively impact the success of any TCR-mediated cell therapy. Allogeneic natural killer (NK) cells have demonstrated efficacy and safety against malignancies without inducing graft-versus-host-disease, highlighting the feasibility for an 'off the shelf' cellular therapeutic. Furthermore, primary NK cells can target tumors using a broad array of intrinsic activation mechanisms. In this study, we combined the antitumor effector functions of NK cells with TCR engineering (NK-TCR), creating a novel therapeutic strategy to avoid TCR-associated immune resistance. METHODS BOB1, is a transcription factor highly expressed in all healthy and malignant B cell lineages, including multiple myeloma (MM). Expression of an HLA-B*07:02 restricted BOB1-specifc TCR in peripheral blood-derived NK cells was achieved following a two-step retroviral transduction protocol. NK-TCR was then compared with TCR-negative NK cells and CD8-T cells expressing the same TCR for effector function against HLA-B*07:02+ B-cell derived lymphoblastoid cell lines (B-LCL), B-cell acute lymphoblastic leukemia and MM cell lines in vitro and in vivo. RESULTS Firstly, TCR could be reproducibly expressed in NK cells isolated from the peripheral blood of multiple healthy donors generating pure NK-TCR cell products. Secondly, NK-TCR demonstrated antigen-specific effector functions against malignancies which were previously resistant to NK-mediated lysis and enhanced NK efficacy in vivo using a preclinical xenograft model of MM. Moreover, antigen-specific cytotoxicity and cytokine production of NK-TCR was comparable to CD8 T cells expressing the same TCR. Finally, in a model of HLA-class I loss, tumor cells with B2M KO were lysed by NK-TCR in an NK-mediated manner but were resistant to T-cell based killing. CONCLUSION NK-TCR cell therapy enhances NK cell efficacy against tumors through additional TCR-mediated lysis. Furthermore, the dual efficacy of NK-TCR permits the specific targeting of tumors and the associated TCR-associated immune resistance, making NK-TCR a unique cellular therapeutic.
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Affiliation(s)
- Laura T Morton
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Miranda H Meeuwsen
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anne K Wouters
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Dennis F G Remst
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marleen M van Loenen
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Mirjam H M Heemskerk
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
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7
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Clara JA, Levy ER, Reger R, Barisic S, Chen L, Cherkasova E, Chakraborty M, Allan DSJ, Childs R. High-affinity CD16 integration into a CRISPR/Cas9-edited CD38 locus augments CD38-directed antitumor activity of primary human natural killer cells. J Immunother Cancer 2022; 10:jitc-2021-003804. [PMID: 35135865 PMCID: PMC8830298 DOI: 10.1136/jitc-2021-003804] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2021] [Indexed: 11/06/2022] Open
Abstract
Background Adoptive transfer of natural killer (NK) cells with augmented antibody-dependent cellular cytotoxicity (ADCC) capabilities and resistance to CD38 targeting has the potential to enhance the clinical anti-myeloma activity of daratumumab (DARA). Therefore, we sought to develop an efficient CRISPR/Cas9-based gene editing platform to disrupt CD38 expression (CD38 knockout (KO)) in ex vivo expanded NK cells and simultaneously arm CD38KO NK cells with a high-affinity CD16 (CD16-158V) receptor. Methods CD38KO human NK cells were generated using Cas9 ribonucleoprotein complexes. The platform was expanded by incorporating messenger RNA (mRNA) transfection of CD38KO NK cells and targeted gene insertion at the CD38 locus to mediate gene knockin (KI). The capacity of these gene-edited NK cells to persist and mediate ADCC in the presence of DARA was tested in vitro and in a MM.1S xenograft mouse model. Results Highly efficient CD38 gene disruption was achieved in ex vivo expanded NK cells without affecting their proliferative or functional capacity. CD38 KO conferred resistance to DARA-induced NK cell fratricide, enabling persistence and augmented ADCC against myeloma cell lines in the presence of DARA in vitro and in a MM.1S xenograft mouse model. CD38KO NK cells could be further modified by transfection with mRNA encoding a CD16-158V receptor, resulting in augmented DARA-mediated ADCC. Finally, we observed that a homology-directed repair template targeted to the CD38 locus facilitated an efficient 2-in-1 CD38 KO coupled with KI of a truncated CD34 reporter and CD16-158V receptor, with CD38KO/CD16KI NK cells demonstrating a further enhancement of DARA-mediated ADCC both in vitro and in vivo. Conclusions Adoptive immunotherapy using ex vivo expanded CD38KO/CD16KI NK cells has the potential to boost the clinical efficacy of DARA. By incorporating complementary genetic engineering strategies into a CD38 KO manufacturing platform, we generated NK cells with substantially augmented CD38-directed antitumor activity, establishing a strong rationale for exploring this immunotherapy strategy in the clinic.
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Affiliation(s)
- Joseph Andrew Clara
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Emily R Levy
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA.,Biologics Process Research and Development, Merck & Co Inc, Kenilworth, New Jersey, USA
| | - Robert Reger
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Stefan Barisic
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Long Chen
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Elena Cherkasova
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Mala Chakraborty
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - David S J Allan
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
| | - Richard Childs
- Laboratory of Transplantation Immunotherapy, Cellular and Molecular Therapeutics Branch, National Heart Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland, USA
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Christodoulou I, Ho WJ, Marple A, Ravich JW, Tam A, Rahnama R, Fearnow A, Rietberg C, Yanik S, Solomou EE, Varadhan R, Koldobskiy MA, Bonifant CL. Engineering CAR-NK cells to secrete IL-15 sustains their anti-AML functionality but is associated with systemic toxicities. J Immunother Cancer 2021; 9:jitc-2021-003894. [PMID: 34896980 PMCID: PMC8655609 DOI: 10.1136/jitc-2021-003894] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/14/2021] [Indexed: 01/15/2023] Open
Abstract
Background The prognosis of patients with recurrent/refractory acute myelogenous leukemia (AML) remains poor and cell-based immunotherapies hold promise to improve outcomes. Natural Killer (NK) cells can elicit an antileukemic response via a repertoire of activating receptors that bind AML surface ligands. NK-cell adoptive transfer is safe but thus far has shown limited anti-AML efficacy. Here, we aimed to overcome this limitation by engineering NK cells to express chimeric antigen receptors (CARs) to boost their anti-AML activity and interleukin (IL)-15 to enhance their persistence. Methods We characterized in detail NK-cell populations expressing a panel of AML (CD123)-specific CARs and/or IL-15 in vitro and in AML xenograft models. Results CARs with 2B4.ζ or 4-1BB.ζ signaling domains demonstrated greater cell surface expression and endowed NK cells with improved anti-AML activity in vitro. Initial in vivo testing revealed that only 2B4.ζ Chimeric Antigen Receptor (CAR)-NK cells had improved anti-AML activity in comparison to untransduced (UTD) and 4-1BB.ζ CAR-NK cells. However, the benefit was transient due to limited CAR-NK-cell persistence. Transgenic expression of secretory interleukin (sIL)-15 in 2B4.ζ CAR and UTD NK cells improved their effector function in the setting of chronic antigen simulation in vitro. Multiparameter flow analysis after chronic antigen exposure identified the expansion of unique NK-cell subsets. 2B4.ζ/sIL-15 CAR and sIL-15 NK cells maintained an overall activated NK-cell phenotype. This was confirmed by transcriptomic analysis, which revealed a highly proliferative and activated signature in these NK-cell groups. In vivo, 2B4.ζ/sIL-15 CAR-NK cells had potent anti-AML activity in one model, while 2B4.ζ/sIL-15 CAR and sIL-15 NK cells induced lethal toxicity in a second model. Conclusion Transgenic expression of CD123-CARs and sIL-15 enabled NK cells to function in the setting of chronic antigen exposure but was associated with systemic toxicities. Thus, our study provides the impetus to explore inducible and controllable expression systems to provide cytokine signals to AML-specific CAR-NK cells before embarking on early-phase clinical testing.
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Affiliation(s)
- Ilias Christodoulou
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Internal Medicine, University of Patras School of Health Sciences, Patras, Western Greece, Greece
| | - Won Jin Ho
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrew Marple
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Jonas W Ravich
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ada Tam
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ruyan Rahnama
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Adam Fearnow
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Cambrynne Rietberg
- Department of Pediatrics, University of Michigan, Ann Arbor, Michigan, USA
| | - Sean Yanik
- Department of Pediatrics, University of Michigan, Ann Arbor, Michigan, USA
| | - Elena E Solomou
- Department of Internal Medicine, University of Patras School of Health Sciences, Patras, Western Greece, Greece
| | - Ravi Varadhan
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Michael A Koldobskiy
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Challice L Bonifant
- Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA .,Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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9
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Darwich A, Silvestri A, Benmebarek MR, Mouriès J, Cadilha B, Melacarne A, Morelli L, Supino D, Taleb A, Obeck H, Sustmann C, Losurdo A, Masci G, Curigliano G, Kobold S, Penna G, Rescigno M. Paralysis of the cytotoxic granule machinery is a new cancer immune evasion mechanism mediated by chitinase 3-like-1. J Immunother Cancer 2021; 9:jitc-2021-003224. [PMID: 34824159 PMCID: PMC8627417 DOI: 10.1136/jitc-2021-003224] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2021] [Indexed: 01/05/2023] Open
Abstract
Background Natural killer (NK) cells require a functional lytic granule machinery to mediate effective antitumor responses. Evading the lytic cargo deployed at the immune synapse (IS) could be a critical step for cancer progression through yet unidentified mechanisms. Methods NK cell antibody-dependent cellular cytotoxicity (ADCC) is a major determinant of the clinical efficacy of some therapeutic antibodies including the anti-HER2 Trastuzumab. Thus, we screened sera of Trastuzumab-resistant HER2 +patients with breast cancer for molecules that could inhibit NK cell ADCC. We validated our findings in vitro using cytotoxicity assays and confocal imaging of the lytic granule machinery and in vivo using syngeneic and xenograft murine models. Results We found that sera from Trastuzumab-refractory patients could inhibit healthy NK cell ADCC in vitro. These sera contained high levels of the inflammatory protein chitinase 3-like 1 (CHI3L1) compared with sera from responders and healthy controls. We demonstrate that recombinant CHI3L1 inhibits both ADCC and innate NK cell cytotoxicity. Mechanistically, CHI3L1 prevents the correct polarization of the microtubule-organizing center along with the lytic granules to the IS by hindering the receptor of advanced glycation end-products and its downstream JNK signaling. In vivo, CHI3L1 administration drastically impairs the control of NK cell-sensitive tumors, while CHI3L1 blockade synergizes with ADCC to cure mice with HER2 +xenografts. Conclusion Our work highlights a new paradigm of tumor immune escape mediated by CHI3L1 which acts on the cytotoxic machinery and prevents granule polarization. Targeting CHI3L1 could mitigate immune escape and potentiate antibody and cell-based immunotherapies.
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Affiliation(s)
- Abbass Darwich
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | | | | | - Juliette Mouriès
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | - Bruno Cadilha
- Division for Clinical Pharmacology, Ludwig-Maximilians-Universitat Munchen, Munich, Germany
| | | | | | - Domenico Supino
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | | | - Hannah Obeck
- Department of Medicine IV, Ludwig-Maximilians-Universitat Munchen, Munchen, Bayern, Germany
| | | | | | | | | | - Sebastian Kobold
- Division of Clinical Pharmacology, Ludwig-Maximilians-Universitat Munchen, Munich, UK
| | | | - Maria Rescigno
- Department of Biomedical Sciences, Humanitas University, Milan, Italy .,Humanitas Mirasole SpA, Rozzano, Lombardia, Italy
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10
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Jan CI, Huang SW, Canoll P, Bruce JN, Lin YC, Pan CM, Lu HM, Chiu SC, Cho DY. Targeting human leukocyte antigen G with chimeric antigen receptors of natural killer cells convert immunosuppression to ablate solid tumors. J Immunother Cancer 2021; 9:jitc-2021-003050. [PMID: 34663641 PMCID: PMC8524382 DOI: 10.1136/jitc-2021-003050] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/25/2021] [Indexed: 12/15/2022] Open
Abstract
Background Immunotherapy against solid tumors has long been hampered by the development of immunosuppressive tumor microenvironment, and the lack of a specific tumor-associated antigen that could be targeted in different kinds of solid tumors. Human leukocyte antigen G (HLA-G) is an immune checkpoint protein (ICP) that is neoexpressed in most tumor cells as a way to evade immune attack and has been recently demonstrated as a useful target for chimeric antigen receptor (CAR)-T therapy of leukemia by in vitro studies. Here, we design and test for targeting HLA-G in solid tumors using a CAR strategy. Methods We developed a novel CAR strategy using natural killer (NK) cell as effector cells, featuring enhanced cytolytic effect via DAP12-based intracellular signal amplification. A single-chain variable fragment (scFv) against HLA-G is designed as the targeting moiety, and the construct is tested both in vitro and in vivo on four different solid tumor models. We also evaluated the synergy of this anti-HLA-G CAR-NK strategy with low-dose chemotherapy as combination therapy. Results HLA-G CAR-transduced NK cells present effective cytolysis of breast, brain, pancreatic, and ovarian cancer cells in vitro, as well as reduced xenograft tumor growth with extended median survival in orthotopic mouse models. In tumor coculture assays, the anti-HLA-G scFv moiety promotes Syk/Zap70 activation of NK cells, suggesting reversal of the HLA-G-mediated immunosuppression and hence restoration of native NK cytolytic functions. Tumor expression of HLA-G can be further induced using low-dose chemotherapy, which when combined with anti-HLA-G CAR-NK results in extensive tumor ablation both in vitro and in vivo. This upregulation of tumor HLA-G involves inhibition of DNMT1 and demethylation of transporter associated with antigen processing 1 promoter. Conclusions Our novel CAR-NK strategy exploits the dual nature of HLA-G as both a tumor-associated neoantigen and an ICP to counteract tumor spread. Further ablation of tumors can be boosted when combined with administration of chemotherapeutic agents in clinical use. The readiness of this novel strategy envisions a wide applicability in treating solid tumors.
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Affiliation(s)
- Chia-Ing Jan
- Department of Pathology, China Medical University Hospital, Taichung, Taiwan.,Department of Medicine, China Medical University, Taichung, Taiwan.,Translational Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan
| | - Shi-Wei Huang
- Translational Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan.,Institute of New Drug Development, China Medical University, Taichung, Taiwan
| | - Peter Canoll
- Department of Pathology and Cell Biology, Columbia University, New York, New York, USA
| | - Jeffrey N Bruce
- Department of Neurosurgery, Columbia University, New York, New York, USA
| | - Yu-Chuan Lin
- Translational Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan.,Drug Development Center, China Medical University, Taichung, Taiwan
| | - Chih-Ming Pan
- Translational Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan
| | - Hsin-Man Lu
- Department of Psychology, Asia University, Taichung, Taiwan
| | - Shao-Chih Chiu
- Translational Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan .,Drug Development Center, China Medical University, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
| | - Der-Yang Cho
- Translational Cell Therapy Center, China Medical University Hospital, Taichung, Taiwan .,Drug Development Center, China Medical University, Taichung, Taiwan.,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan.,Department of Neurosurgery, China Medical University Hospital, Taichung, Taiwan
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11
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Aguilar-Jiménez W, Flórez-Álvarez L, Rincón DS, Marín-Palma D, Sánchez-Martínez A, Martínez J, Zapata MI, Loaiza JD, Cárdenas C, Guzmán F, Velilla PA, Taborda NA, Zapata W, Hernández JC, Díaz FJ, Rugeles MT. Immune characterization of a Colombian family cluster with SARS-CoV-2 infection. Biomedica 2021; 41:86-102. [PMID: 34669281 DOI: 10.7705/biomedica.5976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Indexed: 12/12/2022]
Abstract
Introduction: Immunological markers have been described during COVID-19 and persist after recovery. These immune markers are associated with clinical features among SARS- CoV-2 infected individuals. Nevertheless, studies reporting a comprehensive analysis of the immune changes occurring during SARS-CoV-2 infection are still limited. Objective: To evaluate the production of proinflammatory cytokines, the antibody response, and the phenotype and function of NK cells and T cells in a Colombian family cluster with SARS-CoV-2 infection. Materials and methods: Proinflammatory cytokines were evaluated by RT-PCR and ELISA. The frequency, phenotype, and function of NK cells (cocultures with K562 cells) and T-cells (stimulated with spike/RdRp peptides) were assessed by flow cytometry. Anti-SARS-CoV-2 antibodies were determined using indirect immunofluorescence and plaque reduction neutralization assay. Results: During COVID-19, we observed a high proinflammatory-cytokine production and a reduced CD56bright-NK cell and cytotoxic response. Compared with healthy controls, infected individuals had a higher frequency of dysfunctional CD8+ T cells CD38+HLA-DR-. During the acute phase, CD8+ T cells stimulated with viral peptides exhibited a monofunctional response characterized by high IL-10 production. However, during recovery, we observed a bifunctional response characterized by the co-expression of CD107a and granzyme B or perforin. Conclusion: Although the proinflammatory response is a hallmark of SARS-CoV-2 infection, other phenotypic and functional alterations in NK cells and CD8+ T cells could be associated with the outcome of COVID-19. However, additional studies are required to understand these alterations and to guide future immunotherapy strategies.
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12
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Frazao A, Rethacker L, Jeudy G, Colombo M, Pasmant E, Avril MF, Toubert A, Moins-Teisserenc H, Roelens M, Dalac S, Maubec E, Caignard A. BRAF inhibitor resistance of melanoma cells triggers increased susceptibility to natural killer cell-mediated lysis. J Immunother Cancer 2021; 8:jitc-2019-000275. [PMID: 32912923 PMCID: PMC7482503 DOI: 10.1136/jitc-2019-000275] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2020] [Indexed: 12/11/2022] Open
Abstract
Background Targeted therapies and immunotherapies are first-line treatments for patients with advanced melanoma. Serine–threonine protein kinase B-RAF (BRAF) and mitogen-activated protein kinase (MEK) inhibition leads to a 70% response rate in patients with advanced melanoma with a BRAFV600E/K mutation. However, acquired resistance occurs in the majority of patients, leading to relapse. Immunotherapies that activate immune cytotoxic effectors induce long-lasting responses in 30% of patients. In that context, combination of targeted therapies with immunotherapy (IT) is a promising approach. We considered boosting natural killer (NK) cell tumor immunosurveillance, as melanoma cells express stress-induced molecules and activate NK cell lysis. Methods Here we have generated vemurafenib (a BRAF inihibitor)-resistant (R) cells from BRAFV600E SK28 and M14-sensitive (S) melanoma cell lines and investigated how resistance interferes with immunogenicity to NK cells. We determined the levels of several soluble molecules including NK ligands in 61 melanoma patients at baseline and 6 months M post-treatment with targeted therapies or immunotherapies. Results Vemurafenib resistance involved activation of p-AKT in SK28R and of p-MEK/p-ERK in M14R cells and was accompanied by modulation of NK ligands. Compared with S cells, SK28R displayed an increased expression of natural killer group 2 D (NKG2D) receptor ligands (major histocompatibility complex class (MHC) I chain-related protein A (MICA) and UL16-binding protein 2 (ULBP2)) whereas M14R exhibited decreased ULBP2. SK28R and M14R cells induced higher NK degranulation and interferon gamma secretion and were more efficiently lysed by donor and patient NK cells. SK28R showed increased tumor necrosis factor-related apoptosis-inducing ligand receptor II (TRAIL-RII) expression and TRAIL-induced apoptosis, and TRAIL-induced apoptosis of M14R was decreased. Combined BRAF/MEK inhibitors abrogated the growth of SK28S, M14S, and M14R cells, while growth of SK28R was maintained. BRAF/MEK inhibition attenuated NK activity but R cell lines activated polyfunctional NK cells and were lysed with high efficiency. We investigated the relationship of soluble NK ligands and response to treatment in a series of melanoma patients. Soluble NKG2D ligands known to regulate the receptor function have been associated to cancer progression. Serum analysis of patients treated with target therapies or IT indicates that soluble forms of NK ligands (MICA, B7H6, programmed cell death ligand 1, and carcinoembryonic antigen cell adhesion molecule 1) may correlate with clinical response. Conclusion These results support strategies combining targeted therapies and NK-based immunotherapies.
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Affiliation(s)
- Alexandra Frazao
- Université de Paris, INSERM UMRS-1160, Institut de Recherche Saint-Louis, 75010, Paris, France
| | - Louise Rethacker
- Université de Paris, INSERM UMRS-1160, Institut de Recherche Saint-Louis, 75010, Paris, France
| | - Géraldine Jeudy
- University Hospital Centre Dijon Bocage Complex, Dermatology Department, Dijon, France
| | - Marina Colombo
- Université de Paris, INSERM UMRS-1160, Institut de Recherche Saint-Louis, 75010, Paris, France
| | - Eric Pasmant
- Université de Paris, AP-HP Hôpital Cochin, Genetic and Molecular Biology Department, Institut Cochin, Paris, France
| | - Marie-Françoise Avril
- Université de Paris, AP-HP Hôpital Cochin, Dermatology Department, Institute Cochin, Paris, France
| | - Antoine Toubert
- Université de Paris, INSERM UMRS-1160, Institut de Recherche Saint-Louis, 75010, Paris, France
| | - Helene Moins-Teisserenc
- Université de Paris, INSERM UMRS-1160, AP-HP hopital Saint-Louis, Institut de Recherche Saint-Louis, 75010, Paris, France
| | - Marie Roelens
- Université de Paris, INSERM UMRS-1160, AP-HP hopital Saint-Louis, Institut de Recherche Saint-Louis, 75010, Paris, France
| | - Sophie Dalac
- University Hospital Centre Dijon Bocage Complex, Dermatology Department, Dijon, France
| | - Eve Maubec
- Université de Paris 13, AP-HP Hôpital Avicenne, Dermatology Department, Bobigny, France
| | - Anne Caignard
- Université de Paris, INSERM UMRS-1160, Institut de Recherche Saint-Louis, 75010, Paris, France
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13
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Zhang C, Röder J, Scherer A, Bodden M, Pfeifer Serrahima J, Bhatti A, Waldmann A, Müller N, Oberoi P, Wels WS. Bispecific antibody-mediated redirection of NKG2D-CAR natural killer cells facilitates dual targeting and enhances antitumor activity. J Immunother Cancer 2021; 9:jitc-2021-002980. [PMID: 34599028 PMCID: PMC8488744 DOI: 10.1136/jitc-2021-002980] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2021] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Natural killer group 2D (NKG2D) is an activating receptor of natural killer (NK) cells and other lymphocytes that mediates lysis of malignant cells through recognition of stress-induced ligands such as MICA and MICB. Such ligands are broadly expressed by cancer cells of various origins and serve as targets for adoptive immunotherapy with effector cells endogenously expressing NKG2D or carrying an NKG2D-based chimeric antigen receptor (CAR). However, shedding or downregulation of NKG2D ligands (NKG2DL) can prevent NKG2D activation, resulting in escape of cancer cells from NKG2D-dependent immune surveillance. METHODS To enable tumor-specific targeting of NKG2D-expressing effector cells independent of membrane-anchored NKG2DLs, we generated a homodimeric recombinant antibody which harbors an N-terminal single-chain fragment variable (scFv) antibody domain for binding to NKG2D, linked via a human IgG4 Fc region to a second C-terminal scFv antibody domain for recognition of the tumor-associated antigen ErbB2 (HER2). The ability of this molecule, termed NKAB-ErbB2, to redirect NKG2D-expressing effector cells to ErbB2-positive tumor cells of different origins was investigated using peripheral blood mononuclear cells, ex vivo expanded NK cells, and NK and T cells engineered with an NKG2D-based chimeric receptor. RESULTS On its own, bispecific NKAB-ErbB2 increased lysis of ErbB2-positive breast carcinoma cells by peripheral blood-derived NK cells endogenously expressing NKG2D more effectively than an ErbB2-specific IgG1 mini-antibody able to induce antibody-dependent cell-mediated cytotoxicity via activation of CD16. Furthermore, NKAB-ErbB2 synergized with NK-92 cells or primary T cells engineered to express an NKG2D-CD3ζ chimeric antigen receptor (NKAR), leading to targeted cell killing and greatly enhanced antitumor activity, which remained unaffected by soluble MICA known as an inhibitor of NKG2D-mediated natural cytotoxicity. In an immunocompetent mouse glioblastoma model mimicking low or absent NKG2DL expression, the combination of NKAR-NK-92 cells and NKAB-ErbB2 effectively suppressed outgrowth of ErbB2-positive tumors, resulting in treatment-induced endogenous antitumor immunity and cures in the majority of animals. CONCLUSIONS Our results demonstrate that combining an NKAB antibody with effector cells expressing an activating NKAR receptor represents a powerful and versatile approach to simultaneously enhance tumor antigen-specific as well as NKG2D-CAR and natural NKG2D-mediated cytotoxicity, which may be particularly useful to target tumors with heterogeneous target antigen expression.
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Affiliation(s)
- Congcong Zhang
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany.,German Cancer Consortium (DKTK), partner site Frankfurt/Mainz, Frankfurt, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Frankfurt Cancer Institute, Goethe University, Frankfurt, Germany
| | - Jasmin Röder
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany.,Frankfurt Cancer Institute, Goethe University, Frankfurt, Germany
| | - Anne Scherer
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Malena Bodden
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | | | - Anita Bhatti
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Anja Waldmann
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Nina Müller
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany
| | - Pranav Oberoi
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany.,German Cancer Consortium (DKTK), partner site Frankfurt/Mainz, Frankfurt, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Winfried S Wels
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt, Germany .,German Cancer Consortium (DKTK), partner site Frankfurt/Mainz, Frankfurt, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany.,Frankfurt Cancer Institute, Goethe University, Frankfurt, Germany
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14
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Fiore PF, Di Matteo S, Tumino N, Mariotti FR, Pietra G, Ottonello S, Negrini S, Bottazzi B, Moretta L, Mortier E, Azzarone B. Interleukin-15 and cancer: some solved and many unsolved questions. J Immunother Cancer 2021; 8:jitc-2020-001428. [PMID: 33203664 PMCID: PMC7674108 DOI: 10.1136/jitc-2020-001428] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2020] [Indexed: 12/29/2022] Open
Abstract
Soluble interleukin (IL)-15 exists under two forms: as monomer (sIL-15) or as heterodimeric complex in association with sIL-15Rα (sIL-15/IL-15Rα). Both forms have been successfully tested in experimental tumor murine models and are currently undergoing investigation in phase I/II clinical trials. Despite more than 20 years research on IL-15, some controversial issues remain to be addressed. A first point concerns the detection of the sIL-15/IL-15Rα in plasma of healthy donors or patients with cancer and its biological significance. The second and third unsolved question regards the protumorigenic role of the IL-15/IL-15Rα complex in human cancer and the detrimental immunological consequences associated to prolonged exposure of natural killer (NK) cells to both forms of soluble IL-15, respectively. Data suggest that in vivo prolonged or repeated exposure to monomeric sIL-15 or the soluble complex may lead to NK hypo-responsiveness through the expansion of the CD8+/CD44+ T cell subset that would suppress NK cell functions. In vitro experiments indicate that soluble complex and monomeric IL-15 may cause NK hyporesponsiveness through a direct effect caused by their prolonged stimulation, suggesting that this mechanism could also be effective in vivo. Therefore, a better knowledge of IL-15 and a more appropriate use of both its soluble forms, in terms of concentrations and time of exposure, are essential in order to improve their therapeutic use. In cancer, the overproduction of sIL-15/IL-15Rα could represent a novel mechanism of immune escape. The soluble complex may act as a decoy cytokine unable to efficiently foster NK cells, or could induce NK hyporesponsiveness through an excessive and prolonged stimulation depending on the type of IL-15Rα isoforms associated. All these unsolved questions are not merely limited to the knowledge of IL-15 pathophysiology, but are crucial also for the therapeutic use of this cytokine. Therefore, in this review, we will discuss key unanswered issues on the heterogeneity and biological significance of IL-15 isoforms, analyzing both their cancer-related biological functions and their therapeutic implications.
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Affiliation(s)
| | - Sabina Di Matteo
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Nicola Tumino
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Gabriella Pietra
- Immuology Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.,Department of Experimental Medicine (DiMES), University of Genoa, Genoa, Italy
| | - Selene Ottonello
- Department of Experimental Medicine (DiMES), University of Genoa, Genoa, Italy.,Center of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| | - Simone Negrini
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genova, Italy
| | - Barbara Bottazzi
- Department of Immunology and Inflammation, Humanitas Clinical and Research Institute, Milan, Italy
| | - Lorenzo Moretta
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Erwan Mortier
- University of Nantes, CNRS, Inserm, CRCINA, University of Nantes, Nantes, France .,Immunotherapy, Graft, Oncology, LabEx IGO, Nantes, France
| | - Bruno Azzarone
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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15
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Park JE, Kim SE, Keam B, Park HR, Kim S, Kim M, Kim TM, Doh J, Kim DW, Heo DS. Anti-tumor effects of NK cells and anti-PD-L1 antibody with antibody-dependent cellular cytotoxicity in PD-L1-positive cancer cell lines. J Immunother Cancer 2021; 8:jitc-2020-000873. [PMID: 32830112 PMCID: PMC7445348 DOI: 10.1136/jitc-2020-000873] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2020] [Indexed: 01/01/2023] Open
Abstract
Background Although programmed cell death-1/programmed death-ligand 1 (PD-L1) inhibitors show remarkable antitumor activity, a large portion of patients with cancer, even those with high PD-L1-expressing tumors, do not respond to their effects. Most PD-L1 inhibitors contain modified fragment crystallizable region (Fc) receptor binding sites to prevent antibody-dependent cellular cytotoxicity (ADCC) against PD-L1-expressing non-tumor cells. However, natural killer (NK) cells have specific antitumor activity in the presence of tumor-targeting antibody through ADCC, which could enhance NK cell-induced cytotoxicity. We evaluated the antitumor efficacy of ADCC via anti-PD-L1 monoclonal antibodies (mAbs) and NK cells against several PD-L1-positive cancer cell lines. Methods Various cancer cell lines were used as target cell lines. Surface PD-L1 expression was analyzed by flow cytometry. IMC-001 and anti-hPD-L1-hIgG1 were tested as anti-PD-L1 mAbs with ADCC and atezolizumab as an anti-PD-L1 mAb without ADCC. NK cell cytotoxicity was measured by 51Cr-release assay and CD107a degranulation assay. Also, live cell imaging was performed to evaluate cytotoxicity in a single-cell level. NK-92-CD16 (CD16-transduced NK-92 cell line) and peripheral blood mononuclear cells from healthy donors, respectively, were used as an effector cell. FcγRIIIa (CD16a)-V158F genotyping was performed for healthy donors. Results We demonstrated that the cytotoxicity of NK-92-CD16 cells toward PD-L1-positive cancer cell lines was significantly enhanced in the presence of anti-PD-L1 mAb with ADCC. We also noted a significant increase in primary human NK cell cytotoxicity against PD-L1-positive human cancer cells when cocultured with anti-PD-L1 mAb with ADCC. Moreover, NK cells expressing a FCGR3A high-affinity genotype displayed higher anti-PD-L1 mAb-mediated ADCC lysis of tumor cells than donors with a low-affinity genotype. Conclusion These results suggest that NK cells induce an ADCC response in combination with anti-PD-L1 mAbs, which helps promote ADCC antitumor activity against PD-L1-positive tumors. This study provides support for NK cell immunotherapy against high PD-L1-expressing tumors in combination with ADCC through anti-PD-L1 mAbs.
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Affiliation(s)
- Ji-Eun Park
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Seong-Eun Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang, Republic of Korea
| | - Bhumsuk Keam
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea .,Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ha-Ram Park
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea
| | - Soyeon Kim
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Miso Kim
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Tae Min Kim
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Junsang Doh
- Department of Materials Science and Engineering, Seoul National University, Gwanak-gu, Republic of Korea
| | - Dong-Wan Kim
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Dae Seog Heo
- Cancer Research Institute, Seoul National University, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
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16
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Xia R, Geng G, Yu X, Xu Z, Guo J, Liu H, Li N, Li Z, Li Y, Dai X, Luo Q, Jiang J, Mi Y. LINC01140 promotes the progression and tumor immune escape in lung cancer by sponging multiple microRNAs. J Immunother Cancer 2021; 9:jitc-2021-002746. [PMID: 34446576 PMCID: PMC8395365 DOI: 10.1136/jitc-2021-002746] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2021] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Long intergenic non-protein coding RNA 1140 (LINC01140), a long non-coding RNA, is highly expressed in various cancers; however, its biological functions in lung cancer (LC) progression and immune escape are still unclear. METHODS Here, to elucidate LINC01140 function, 79 paired LC and paracancerous tissues were collected. LINC01140 expression levels were determined using fluorescence in situ hybridization and qPCR analysis. Cell counting kit-8 (CCK-8) assay and transwell assays were performed. The interaction between microRNAs (miRNAs) and LINC01140 was confirmed using an RNA immunoprecipitation assay. Cytokine-induced killer (CIK) cell phenotypes were analyzed by flow cytometry. Cytokine secretion levels were determined by ELISA. CIK cytotoxicity was assessed by measuring lactate dehydrogenase release. Besides, xenograft tumor mouse models were used to unveil the in vivo function of LINC01140. RESULTS We found that LINC01140 was highly expressed in human LC tissues and cell lines. High LINC01140 levels were associated with poor survival in patients with LC. LINC01140 upregulation promoted the proliferation, migration, and invasion of LC cells through direct interaction with miR-33a-5p and miR-33b-5p, thereby contributing to c-Myc expression and also inhibited cisplatin-induced cell apoptosis. In subcutaneous tumor xenograft mice, LINC01140 knockdown markedly reduced tumor growth and lung metastasis. Additionally, LINC01140 directly repressed miR-377-3 p and miR-155-5 p expression levels, resulting in the upregulation of their common downstream target programmed death-ligand 1 (PD-L1), a crucial target in LC immunotherapy. Notably, we proved that LINC01140 knockdown, along with CIK administration, suppressed the growth of subcutaneous LC xenografts by decreasing PD-L1 expression in severe combined immunodeficient mice. CONCLUSIONS Taken together, LINC01140 overexpression protects c-Myc and PD-L1 mRNA from miRNA-mediated inhibition and contributes to the proliferation, migration, invasion, and immune escape of LC cells. These results provide a theoretical basis that LINC01140 is a promising target for LC treatment.
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Affiliation(s)
- Rongmu Xia
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University; School of Clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China.,School of Medicine, Xiamen University, Xiamen 361102, Fujian Province, China
| | - Guojun Geng
- Department of Thoracic Surgery, Xiamen Key Laboratory of Thoracic tumor diagnosis and treatment, Institute of lung cancer, The First Affiliated Hospital of Xiamen University; School of clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Xiuyi Yu
- Department of Thoracic Surgery, Xiamen Key Laboratory of Thoracic tumor diagnosis and treatment, Institute of lung cancer, The First Affiliated Hospital of Xiamen University; School of clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Zhong Xu
- Department of Thoracic Surgery, Xiamen Key Laboratory of Thoracic tumor diagnosis and treatment, Institute of lung cancer, The First Affiliated Hospital of Xiamen University; School of clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Jing Guo
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University; School of Clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Hongming Liu
- Department of Thoracic Surgery, Xiamen Key Laboratory of Thoracic tumor diagnosis and treatment, Institute of lung cancer, The First Affiliated Hospital of Xiamen University; School of clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Ning Li
- Department of Thoracic Surgery, Xiamen Key Laboratory of Thoracic tumor diagnosis and treatment, Institute of lung cancer, The First Affiliated Hospital of Xiamen University; School of clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Ziyan Li
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University; School of Clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Yingli Li
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University; School of Clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Xiaofang Dai
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Qicong Luo
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University; School of Clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Jie Jiang
- Department of Thoracic Surgery, Xiamen Key Laboratory of Thoracic tumor diagnosis and treatment, Institute of lung cancer, The First Affiliated Hospital of Xiamen University; School of clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
| | - Yanjun Mi
- Department of Medical Oncology, Xiamen Key Laboratory of Antitumor Drug Transformation Research, The First Affiliated Hospital of Xiamen University; School of Clinical Medicine, Fujian Medical University, Xiamen 361003, Fujian Province, China
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17
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Bachiller M, Perez-Amill L, Battram AM, Carné SC, Najjar A, Verhoeyen E, Juan M, Urbano-Ispizua A, Martin-Antonio B. NK cells enhance CAR-T cell antitumor efficacy by enhancing immune/tumor cells cluster formation and improving CAR-T cell fitness. J Immunother Cancer 2021; 9:jitc-2021-002866. [PMID: 34433634 PMCID: PMC8388291 DOI: 10.1136/jitc-2021-002866] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/28/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Chimeric antigen receptor (CAR)-T cell immunotherapy has modified the concept of treatment in hematological malignancies. In comparison with pediatric patients, where responses are maintained over many years, older patients, such as those with non-Hodgkin's lymphoma (NHL) and multiple myeloma (MM), present lower persistence of CAR-T cells that might be due to decreased fitness of T cells acquired with aging. Moreover, cord blood derived-NK cells (CB-NKs) and CAR-NK cells derived from CB-NK can be used 'off-the-shelf' as immune cells with antitumor properties for the treatment of cancer patients. However, to date, clinical studies have only demonstrated the safety of these therapies but not optimal efficacy. To confront the shortcomings of each therapy, we devised a novel approach consisting of simultaneous (CAR-)NK cell and CAR-T cell administration. In this setting, NK cells demonstrate an important immunoregulation of T cells that could be exploited to enhance the efficacy of CAR-T cells. METHODS A combinatorial treatment based on either CAR-T and CAR-NK cells or CB-NK and CAR-T cells in two models of NHL and MM was performed. Antitumor efficacy was analyzed in vitro and in vivo, and parameters related to early activation, exhaustion and senescence of T cells were analyzed. RESULTS We show that CAR-NK cells derived from CB-NK are only effective at high doses (high E:T ratio) and that their activity rapidly decreases over time in comparison with CAR-T cells. In comparison and to exploit the potential of 'off-the-shelf' CB-NK, we demonstrate that a low number of CB-NK in the CAR-T cell product promotes an early activation of CAR-T cells and their migration to MM cells leading to enhanced anti-MM efficacy. Moreover, cytokines related to CRS development were not increased, and importantly, CB-NK enhanced the fitness of both CARpos and CARneg T cells, promoting lower levels of exhaustion and senescence. CONCLUSION This study demonstrates a relevant immunoregulatory role of CB-NK collaborating with CAR-T cells to enhance their antitumor activity. A novel and different approach to consider in CAR-T cell immunotherapy studies is presented here with the goal to enhance the efficacy of the treatment.
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Affiliation(s)
- Mireia Bachiller
- Department of Hematology, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | | | | | | | - Amer Najjar
- Department of Pediatrics-Research, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Els Verhoeyen
- CIRI, Université de Lyon, INSERM U1111, ENS de Lyon, Université Lyon 1, Lyon, France.,Université Côte d'Azur, INSERM, Nice, France
| | - Manel Juan
- Department of Immunology, Hospital Clinic de Barcelona (HCB), Platforms of Immunoterapy IDIBAPS HSJD-HCB and BST-HCB, Barcelona, Spain.,Department of Medicine, University of Barcelona, Barcelona, Catalunya, Spain
| | - Alvaro Urbano-Ispizua
- Department of Hematology. University of Barcelona, IDIBAPS, Barcelona, Spain.,Josep Carreras Leukaemia Research Institute, Barcelona, Spain
| | - Beatriz Martin-Antonio
- Department of Experimental Hematology, Instituto de Investigación Sanitaria-Fundación Jiménez Diaz, Madrid, Spain
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18
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Baeva ME, Baev PB, Nelson J, Kazimirchik A, Vorobeychik G. A retrospective analysis of changes in lymphocyte levels in patients with multiple sclerosis during and after Tecfidera® treatment. Mult Scler J Exp Transl Clin 2021; 7:20552173211029674. [PMID: 34345437 PMCID: PMC8283074 DOI: 10.1177/20552173211029674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 06/14/2021] [Indexed: 11/16/2022] Open
Abstract
Background There are currently no best practice recommendations for lymphocyte subset monitoring for patients with multiple sclerosis (pwMS) on disease-modifying therapies including Tecfidera® (dimethyl fumarate, DMF). However, there have been several cases of pwMS on DMF without severe lymphopenia who had high CD4:CD8 T cell ratios and went on to develop progressive multifocal leukoencephalopathy. Objective Our objective was to characterize the changes in immune profile during and after DMF treatment in pwMS. Methods A retrospective analysis of longitudinal data from 299 pwMS who have been treated with DMF at the Fraser Health Multiple Sclerosis Clinic in British Columbia, Canada. The blood test results were taken from January 1, 2013 to April 1, 2020. Results Our results suggest that CD8+ T cells had the highest proportional decrease compared to other lymphocyte subset populations and overall lymphocyte count in response to DMF treatment. CD56+ Natural Killer cells were similarly decreased in response to DMF treatment. CD4:CD8 T cell ratio was the measurement that had the highest rate of change in response to DMF initiation and discontinuation. Conclusion CD8+ T cell count and CD4:CD8 T cell ratio may be a more sensitive measurement of the immune landscape of patients with MS on DMF.
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Affiliation(s)
- Maria-Elizabeth Baeva
- Fraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada
| | - Philip Boris Baev
- Fraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada
| | - Jill Nelson
- Fraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada
| | - Anna Kazimirchik
- Fraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada
| | - Galina Vorobeychik
- Fraser Health Multiple Sclerosis Clinic, Burnaby Hospital, Burnaby Hospital, Burnaby, British Columbia, Canada
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19
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Chu Y, Nayyar G, Jiang S, Rosenblum JM, Soon-Shiong P, Safrit JT, Lee DA, Cairo MS. Combinatorial immunotherapy of N-803 (IL-15 superagonist) and dinutuximab with ex vivo expanded natural killer cells significantly enhances in vitro cytotoxicity against GD2 + pediatric solid tumors and in vivo survival of xenografted immunodeficient NSG mice. J Immunother Cancer 2021; 9:jitc-2020-002267. [PMID: 34244307 PMCID: PMC8268924 DOI: 10.1136/jitc-2020-002267] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/23/2021] [Indexed: 11/18/2022] Open
Abstract
Background Children with recurrent and/or metastatic osteosarcoma (OS), neuroblastoma (NB) and
glioblastoma multiforme (GBM) have a dismal event-free survival (<25%).
The majority of these solid tumors highly express GD2. Dinutuximab, an anti-GD2
monoclonal antibody, significantly improved event-free survival in children with
GD2+ NB post autologous stem cell transplantation and enhanced natural
killer (NK) cell-mediated antibody-dependent cell cytotoxicity. Thus, approaches to
increase NK cell number and activity, improve persistence and trafficking, and enhance
tumor targeting may further improve the clinical benefit of dinutuximab. N-803 is a
superagonist of an interleukin-15 (IL-15) variant bound to an IL-15 receptor alpha Su-Fc
fusion with enhanced biological activity. Methods The anti-tumor combinatorial effects of N-803, dinutuximab and ex vivo expanded
peripheral blood NK cells (exPBNK) were performed in vitro using cytoxicity assays
against GD2+ OS, NB and GBM cells. Perforin and interferon (IFN)-γ
levels were measured by ELISA assays. Multiple cytokines/chemokines/growth factors
released were measured by multiplex assays. Human OS, GBM or NB xenografted
NOD/SCID/IL2rγnull (NSG) mice were used to investigate the anti-tumor
combinatorial effects in vivo. Results N-803 increased the viability and proliferation of exPBNK. The increased viability and
proliferation are associated with increased phosphorylation of Stat3, Stat5, AKT,
p38MAPK and the expression of NK activating receptors. The combination of dinutuximab
and N-803 significantly enhanced in vitro cytotoxicity of exPBNK with enhanced perforin
and IFN-γ release against OS, GBM and NB. The combination of
exPBNK+N-803+dinutuximab significantly reduced the secretion of tumor necrosis
factor-related apoptosis-inducing ligand (TRAIL), platelet-derived growth factor-BB
(PDGF-BB), and stem cell growth factor beta (SCGF-β) from OS or GBM tumor cells.
Furthermore, OS or GBM significantly inhibited the secretion of regulated on activation,
normal T cell expressed and presumably secreted (RANTES) and stromal cell-derived
factor-1 alpha (SDF-1α) from exPBNK cells (p<0.001) but significantly
enhanced monokine induced by gamma interferon (MIG) secretion from exPBNK cells
(p<0.001). N-803 combined with dinutuximab and exPBNK cells significantly
extended the survival of OS, GBM or NB xenografted NSG mice. Conclusions Our results provide the rationale for the development of a clinical trial of N-803 in
combination with dinutuximab and ex vivo exPBNK cells in patients with recurrent or
metastatic GD2+ solid tumors.
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Affiliation(s)
- Yaya Chu
- Department of Pediatrics, New York Medical College, Valhalla, New York, USA
| | - Gaurav Nayyar
- Department of Pediatrics, New York Medical College, Valhalla, New York, USA
| | - Susiyan Jiang
- Department of Pediatrics, New York Medical College, Valhalla, New York, USA
| | - Jeremy M Rosenblum
- Department of Pediatrics, New York Medical College, Valhalla, New York, USA
| | | | | | - Dean A Lee
- Department of Hem/Onc/BMT, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Mitchell S Cairo
- Department of Pediatrics, New York Medical College, Valhalla, New York, USA .,Department of Medicine, New York Medical College, Valhalla, New York, USA.,Department of Pathology, New York Medical College, Valhalla, New York, USA.,Department of Microbiology and Immunology, New York Medical College, Valhalla, New York, USA.,Department of Cell Biology and Anatomy, New York Medical College, Valhalla, New York, USA
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20
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Nakamura T, Sato T, Endo R, Sasaki S, Takahashi N, Sato Y, Hyodo M, Hayakawa Y, Harashima H. STING agonist loaded lipid nanoparticles overcome anti-PD-1 resistance in melanoma lung metastasis via NK cell activation. J Immunother Cancer 2021; 9:jitc-2021-002852. [PMID: 34215690 PMCID: PMC8256839 DOI: 10.1136/jitc-2021-002852] [Citation(s) in RCA: 100] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2021] [Indexed: 12/14/2022] Open
Abstract
Background Resistance to an immune checkpoint inhibitor (ICI) is a major obstacle in cancer immunotherapy. The causes of ICI resistance include major histocompatibility complex (MHC)/histocompatibility locus antigen (HLA) class I loss, neoantigen loss, and incomplete antigen presentation. Elimination by natural killer (NK) cells would be expected to be an effective strategy for the treatment of these ICI-resistant tumors. We previously demonstrated that a lipid nanoparticle containing a stimulator of an interferon gene (STING) agonist (STING-LNP) efficiently induced antitumor activity via the activation of NK cells. Thus, we evaluated the potential of reducing ICI resistance by STING-LNPs. Methods Lung metastasis of a B16-F10 mouse melanoma was used as an anti-programmed cell death 1 (anti-PD-1)-resistant mouse model. The mice were intravenously injected with the STING-LNP and the mechanism responsible for the improvement of anti-PD-1 resistance by the STING-LNPs was analyzed by RT-qPCR and flow cytometry. The dynamics of STING-LNP were also investigated. Results Although anti-PD-1 monotherapy failed to induce an antitumor effect, the combination of the STING-LNP and anti-PD-1 exerted a synergistic antitumor effect. Our results indicate that the STING-LNP treatment significantly increased the expression of CD3, CD4, NK1.1, PD-1 and interferon (IFN)-γ in lung metastases. This change appears to be initiated by the type I IFN produced by liver macrophages that contain the internalized STING-LNPs, leading to the systemic activation of NK cells that express PD-1. The activated NK cells appeared to produce IFN-γ, resulting in an increase in the expression of the PD ligand 1 (PD-L1) in cancer cells, thus leading to a synergistic antitumor effect when anti-PD-1 is administered. Conclusions We provide a demonstration to show that a STING-LNP treatment can overcome PD-1 resistance in a B16-F10 lung metastasis model. The mechanism responsible for this indicates that NK cells are activated by stimulating the STING pathway which, in turn, induced the expression of PD-L1 on cancer cells. Based on the findings reported herein, the STING-LNP represents a promising candidate for use in combination therapy with anti-PD-1-resistant tumors.
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Affiliation(s)
- Takashi Nakamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Takanori Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Rikito Endo
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Shun Sasaki
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Naomichi Takahashi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Yusuke Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Mamoru Hyodo
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota, Aichi, Japan
| | - Yoshihiro Hayakawa
- Department of Applied Chemistry, Faculty of Engineering, Aichi Institute of Technology, Toyota, Aichi, Japan
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
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21
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Zhang Y, Song Y, Ni Q, Li G, Dai J, Zhang M, Xie J. Systematic review and meta-analysis: transplanted hematopoietic stem cells and killer cells on leukemia. Ann Palliat Med 2021; 10:7872-7883. [PMID: 34353075 DOI: 10.21037/apm-21-1359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 06/25/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND meta-analysis was performed to study the therapeutic effect of hematopoietic stem cell transplantation combined with killer cells (important immune cells of the body) on leukemia, hoping to enhance the postoperative therapeutic efficiency. METHODS literatures were searched with "Hematopoietic stem cell transplantation", "killer cell", "leukemia", "Cytokine induction", etc. as search terms using Boolean logic search. Review Manager was utilized for meta-analysis after literature screening. RESULTS eleven literatures were included, most of which were of low-risk bias (medium-high quality). Through meta-analysis, statistical heterogeneity was found in non-recurring mortality (NRM) between control group and experimental group (Chi2 =15.69, I2=62%, P=0.02). The leukemia-free survival rate between two groups was not heterogeneous (Chi2 =13.16, I2=32%, P=0.16), without considerable difference between groups (Z=1.52, P=0.13). The incidence of graft-versus-host disease (GvHD) between the two groups was statistically heterogeneous (Chi2 =21.38, I2=67%, P=0.003). The incidence of graft-versus-host disease in experimental group was greatly inferior to controls (Z=3.87, P=0.0001). DISCUSSION hematopoietic stem cell transplantation combined with killer cells can effectively reduce the incidence of GvHD after stem cell transplantation in patients. The prognosis of transplantation was good, and it had no obvious effect on the overall survival rate and recurrence rate.
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Affiliation(s)
- Yunjie Zhang
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
| | - Yanping Song
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
| | - Qingren Ni
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
| | - Guang Li
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
| | - Jinqian Dai
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
| | - Menyun Zhang
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
| | - Jia Xie
- Institute of Hematology, Xi'an Jiaotong University Affiliated to Xi'an Central Hospital, Xi'an, China
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22
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Varudkar N, Oyer JL, Copik A, Parks GD. Oncolytic parainfluenza virus combines with NK cells to mediate killing of infected and non-infected lung cancer cells within 3D spheroids: role of type I and type III interferon signaling. J Immunother Cancer 2021; 9:jitc-2021-002373. [PMID: 34172515 PMCID: PMC8237729 DOI: 10.1136/jitc-2021-002373] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND There is intense interest in developing novel oncolytic viruses, which can be used in cancer therapies along with immune cells such as natural killer (NK) cells. We have previously developed a particle-based method for in vitro expansion of highly cytotoxic human NK cells (PM21-NK cells). Here, we have tested the hypothesis that oncolytic parainfluenza virus 5 (P/V virus) can combine with PM21-NK cells for targeted killing of lung cancer cells. METHODS PM21-NK cells were assayed for killing of P/V virus-infected A549, H1299 and Calu-1 lung cancer cells in two-dimensional (2D) and three-dimensional (3D) cultures using flow cytometry, luminescence and kinetic imaging-based methods. Blocking antibodies were used to evaluate NK cell activating receptors involved in PM21-NK cell killing of infected target cells. Media transfer experiments tested soluble factors that increase PM21-NK cell killing of both P/V virus-infected and uninfected tumor cells. RESULTS In 2D cultures, PM21-NK cells efficiently killed P/V virus-infected cancer cells compared with non-infected cells, through involvement of the viral glycoprotein and NK cell receptors NKp30, NKp46 and NKG2D. In 3D spheroid cultures, P/V virus infection was restricted to the outer layer of the spheroid. However, PM21-NK cells were able to more efficiently kill both the outer layer of infected cells in the spheroid and progressing further to kill the uninfected interior cells. Media transfer experiments demonstrated that P/V virus infection produced both type I and type III interferons, which decreased cell growth, which contributed to a reduction in the overall number of uninfected tumor cells in conjunction with PM21-NK cells. Across five cancer cell lines, the contribution of P/V virus infection on PM21-NK cell killing of target cells correlated with interferon induction. CONCLUSION Our data support the potential of combining oncolytic parainfluenza virus with PM21-NK cell adoptive therapy against lung cancer.
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Affiliation(s)
- Namita Varudkar
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Jeremiah L Oyer
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Alicja Copik
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Griffith D Parks
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
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23
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Rettman P, Blunt MD, Fulton RJ, Vallejo AF, Bastidas-Legarda LY, España-Serrano L, Polak ME, Al-Shamkhani A, Retiere C, Khakoo SI. Peptide: MHC-based DNA vaccination strategy to activate natural killer cells by targeting killer cell immunoglobulin-like receptors. J Immunother Cancer 2021; 9:e001912. [PMID: 34016721 PMCID: PMC8141441 DOI: 10.1136/jitc-2020-001912] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/08/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Natural killer (NK) cells are increasingly being recognized as agents for cancer immunotherapy. The killer cell immunoglobulin-like receptors (KIRs) are expressed by NK cells and are immunogenetic determinants of the outcome of cancer. In particular, KIR2DS2 is associated with protective responses to several cancers and also direct recognition of cancer targets in vitro. Due to the high homology between activating and inhibitory KIR genes to date, it has been challenging to target individual KIR for therapeutic benefit. METHODS A novel KIR2DS2-targeting therapeutic peptide:MHC DNA vaccine was designed and used to immunize mice transgenic for KIR genes (KIR-Tg). NK cells were isolated from the livers and spleens of vaccinated mice and then analyzed for activation by flow cytometry, RNA profiling and cytotoxicity assays. In vivo assays of NK cell function using a syngeneic cancer model (B16 melanoma) and an adoptive transfer model for human hepatocellular carcinoma (Huh7) were performed. RESULTS Injecting KIR-Tg mice with the vaccine construct activated NK cells in both liver and spleens of mice, with preferential activation of KIR2DS2-positive NK cells. KIR-specific activation was most marked on the CD11b+CD27+ mature subset of NK cells. RNA profiling indicated that the DNA vaccine upregulated genes associated with cellular metabolism and downregulated genes related to histone H3 methylation, which are associated with immune cell maturation and NK cell function. Vaccination led to canonical and cross-reactive peptide:MHC-specific NK cell responses. In vivo, DNA vaccination led to enhanced antitumor responses against B16F10 melanoma cells and also enhanced responses against a tumor model expressing the KIR2DS2 ligand HLA-C*0102. CONCLUSION We show the feasibility of a peptide-based KIR-targeting vaccine strategy to activate NK cells and hence generate functional antitumor responses. This approach does not require detailed knowledge of the tumor peptidomes nor HLA matching with the patient. It therefore offers a novel opportunity for targeting NK cells for cancer immunotherapy.
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MESH Headings
- Animals
- Cancer Vaccines/administration & dosage
- Cancer Vaccines/genetics
- Cancer Vaccines/immunology
- Cell Line, Tumor
- Cytotoxicity, Immunologic/drug effects
- HLA-C Antigens/administration & dosage
- HLA-C Antigens/genetics
- HLA-C Antigens/immunology
- Haplotypes
- Humans
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Lectins, C-Type/genetics
- Lectins, C-Type/immunology
- Lectins, C-Type/metabolism
- Liver Neoplasms/drug therapy
- Liver Neoplasms/genetics
- Liver Neoplasms/immunology
- Liver Neoplasms/metabolism
- Lymphocyte Activation/drug effects
- Lymphocytes, Tumor-Infiltrating/drug effects
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Melanoma, Experimental/drug therapy
- Melanoma, Experimental/genetics
- Melanoma, Experimental/immunology
- Melanoma, Experimental/metabolism
- Mice, Inbred C57BL
- Mice, Transgenic
- Peptides/administration & dosage
- Peptides/genetics
- Peptides/immunology
- Receptors, Immunologic/genetics
- Receptors, Immunologic/immunology
- Receptors, Immunologic/metabolism
- Receptors, KIR/genetics
- Receptors, KIR/immunology
- Receptors, KIR/metabolism
- Skin Neoplasms/drug therapy
- Skin Neoplasms/genetics
- Skin Neoplasms/immunology
- Skin Neoplasms/metabolism
- Vaccination
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/genetics
- Vaccines, DNA/immunology
- Mice
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Affiliation(s)
- Pauline Rettman
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Matthew D Blunt
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Rebecca J Fulton
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Andres F Vallejo
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Leidy Y Bastidas-Legarda
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Laura España-Serrano
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Marta E Polak
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Aymen Al-Shamkhani
- Antibody and Vaccine Group, Centre for Cancer Immunology, Faculty of Medicine, University of Southampton, Southampton, UK
| | | | - Salim I Khakoo
- School of Clinical and Experimental Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
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24
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Guo X, Mahlakõiv T, Ye Q, Somanchi S, He S, Rana H, DiFiglia A, Gleason J, van der Touw W, Hariri R, Zhang X. CBLB ablation with CRISPR/Cas9 enhances cytotoxicity of human placental stem cell-derived NK cells for cancer immunotherapy. J Immunother Cancer 2021; 9:e001975. [PMID: 33741730 PMCID: PMC7986888 DOI: 10.1136/jitc-2020-001975] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Tumors often develop resistance to surveillance by endogenous immune cells, which include natural killer (NK) cells. Ex vivo activated and/or expanded NK cells demonstrate cytotoxicity against various tumor cells and are promising therapeutics for adoptive cancer immunotherapy. Genetic modification can further enhance NK effector cell activity or activation sensitization. Here, we evaluated the effect of the genetic deletion of ubiquitin ligase Casitas B-lineage lymphoma pro-oncogene-b (CBLB), a negative regulator of lymphocyte activity, on placental CD34+ cell-derived NK (PNK) cell cytotoxicity against tumor cells. METHODS Using CRISPR/Cas9 technology, CBLB was knocked out in placenta-derived CD34+ hematopoietic stem cells, followed by differentiation into PNK cells. Cell expansion, phenotype and cytotoxicity against tumor cells were characterized in vitro. The antitumor efficacy of CBLB knockout (KO) PNK cells was tested in an acute myeloid leukemia (HL-60) tumor model in NOD-scid IL2R gammanull (NSG) mice. PNK cell persistence, biodistribution, proliferation, phenotype and antitumor activity were evaluated. RESULTS 94% of CBLB KO efficacy was achieved using CRISPR/Cas9 gene editing technology. CBLB KO placental CD34+ cells differentiated into PNK cells with high cell yield and >90% purity determined by CD56+ CD3- cell identity. Ablation of CBLB did not impact cell proliferation, NK cell differentiation or phenotypical characteristics of PNK cells. When compared with the unmodified PNK control, CBLB KO PNK cells exhibited higher cytotoxicity against a range of liquid and solid tumor cell lines in vitro. On infusion into busulfan-conditioned NSG mice, CBLB KO PNK cells showed in vivo proliferation and maturation as evidenced by increased expression of CD16, killer Ig-like receptors and NKG2A over 3 weeks. Additionally, CBLB KO PNK cells showed greater antitumor activity in a disseminated HL60-luciferase mouse model compared with unmodified PNK cells. CONCLUSION CBLB ablation increased PNK cell effector function and proliferative capacity compared with non-modified PNK cells. These data suggest that targeting CBLB may offer therapeutic advantages via enhancing antitumor activities of NK cell therapies.
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MESH Headings
- Adaptor Proteins, Signal Transducing/deficiency
- Adaptor Proteins, Signal Transducing/genetics
- Animals
- Antigens, CD34/metabolism
- CRISPR-Associated Protein 9/genetics
- CRISPR-Associated Protein 9/metabolism
- CRISPR-Cas Systems
- Clustered Regularly Interspaced Short Palindromic Repeats
- Coculture Techniques
- Cytotoxicity, Immunologic
- Female
- GPI-Linked Proteins/metabolism
- Gene Knockout Techniques
- HL-60 Cells
- Humans
- Immunotherapy, Adoptive
- K562 Cells
- Killer Cells, Natural/immunology
- Killer Cells, Natural/metabolism
- Killer Cells, Natural/transplantation
- Mice, Inbred NOD
- Mice, SCID
- NK Cell Lectin-Like Receptor Subfamily C/metabolism
- Neoplasms/immunology
- Neoplasms/metabolism
- Neoplasms/therapy
- Phenotype
- Placenta/cytology
- Pregnancy
- Proto-Oncogene Proteins c-cbl/deficiency
- Proto-Oncogene Proteins c-cbl/genetics
- Receptors, IgG/metabolism
- Stem Cells/immunology
- Stem Cells/metabolism
- Xenograft Model Antitumor Assays
- Mice
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Affiliation(s)
- Xuan Guo
- Celularity Inc, Florham Park, New Jersey, USA
| | | | - Qian Ye
- Celularity Inc, Florham Park, New Jersey, USA
| | | | - Shuyang He
- Celularity Inc, Florham Park, New Jersey, USA
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25
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Madan RA, Karzai F, Donahue RN, Al-Harthy M, Bilusic M, Rosner II, Singh H, Arlen PM, Theoret MR, Marté JL, Cordes L, Couvillon A, Hankin A, Williams M, Owens H, Lochrin SE, Chau CH, Steinberg S, Figg WD, Dahut W, Schlom J, Gulley JL. Clinical and immunologic impact of short-course enzalutamide alone and with immunotherapy in non-metastatic castration sensitive prostate cancer. J Immunother Cancer 2021; 9:e001556. [PMID: 33664086 PMCID: PMC7934713 DOI: 10.1136/jitc-2020-001556] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/03/2020] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND The standard treatment for non-metastatic castration sensitive prostate cancer (nmCSPC) is androgen deprivation therapy (ADT) or surveillance. This study evaluated the potential synergy of immunotherapy and enzalutamide (without ADT) in nmCSPC. In addition, the immunologic impact of enzalutamide was also evaluated in men with normal testosterone. METHODS Patients with rising prostate-specific antigen (PSA) after definitive therapy, normal testosterone and no radiographic metastasis were randomized to enzalutamide for 3 months with/without PROSTVAC for 6 months. Thereafter, patients could be retreated with another 3 month course of enzalutamide when PSA returned to baseline. Immune profiles were evaluated in these patients. RESULTS Thirty-eight patients were randomized with a median PSA=4.38 ng/dL and PSA doubling time=4.1 months. No difference was observed between the two groups for PSA growth kinetics, but PSA responses to enzalutamide were noteworthy regardless of PROSTVAC. The median PSA decline after short-course enzalutamide without ADT/testosterone lowering therapy was 99% in both courses. The median time to PSA recovery to baseline after each 84-day course of enzalutamide was also noteworthy because of the duration of response after enzalutamide was discontinued. After the first and second 3 month cycle of enzalutamide, PSA recovery to baseline took a median 224 (range 84-1246) and 189 days (78-400), respectively. The most common adverse events related to the enzalutamide were grade 1 fatigue (71%) and grade 1 breast pain/nipple tenderness (81%). The only grade 3 toxicity was aspartate aminotransferase (AST)/alanine aminotransferase (ALT) elevation in two patients. Enzalutamide was independently associated with immune changes, increasing natural killer cells, naïve-T cells, and decreasing myeloid-derived suppressor cells. CONCLUSIONS Three months of enzalutamide without ADT induced substantial PSA control beyond the treatment period and was repeatable, perhaps representing an alternative to intermittent ADT in nmCSPC. In addition, enzalutamide was associated with immune changes that could be relevant as future immune combinations are developed. TRAIL REGISTRATION NUMBER: clinicaltrials.gov (NCT01875250).
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Affiliation(s)
- Ravi A Madan
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Fatima Karzai
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Renee N Donahue
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Munjid Al-Harthy
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Marijo Bilusic
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Inger I Rosner
- The Center for Prostate Disease Research, Walter Reed National Military Medical Center, Bethesda, Maryland, USA
| | - Harpreet Singh
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Philip M Arlen
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Marc R Theoret
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Jennifer L Marté
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Lisa Cordes
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Anna Couvillon
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Amy Hankin
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Moniquea Williams
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Helen Owens
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Sarah E Lochrin
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Cindy H Chau
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Seth Steinberg
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - William Douglas Figg
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - William Dahut
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - Jeffrey Schlom
- Laboratory of Tumor Immunology and Biology, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
| | - James L Gulley
- Genitourinary Malignancies, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland, USA
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26
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Slattery K, Woods E, Zaiatz-Bittencourt V, Marks S, Chew S, Conroy M, Goggin C, MacEochagain C, Kennedy J, Lucas S, Finlay DK, Gardiner CM. TGFβ drives NK cell metabolic dysfunction in human metastatic breast cancer. J Immunother Cancer 2021; 9:jitc-2020-002044. [PMID: 33568351 PMCID: PMC7878131 DOI: 10.1136/jitc-2020-002044] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2020] [Indexed: 12/21/2022] Open
Abstract
Background Natural killer (NK) cells provide important immune protection from cancer and are a key requirement for particular immunotherapies. There is accumulating evidence that NK cells become dysfunctional during cancer. Overcoming NK cell exhaustion would be an important step to allow them to function optimally in a range of NK cell therapies, including those that depend on autologos circulating NK cells. We have previously demonstrated that NK cells undergo a normal metabolic reprogramming in response to cytokine activation and that this is required for optimal function. The objective of this work was to investigate if cellular metabolism of circulating NK cells is dysregulated in patients with metastatic breast cancer and if so, to gain insights into potential mechanisms underpinning this. Such discoveries would provide important insights into how to unleash the full activity of NK cells for maximum immunotherapy output. Methods Single-cell analysis, metabolic flux and confocal analysis of NK cells from patients with metastatic breast cancer and healthy controls Results In addition to reduced interferon-γ production and cytotoxicity, peripheral blood NK cells from patients had clear metabolic deficits including reduced glycolysis and oxidative phosphorylation. There were also distinct morphologically alterations in the mitochondria with increased mitochondrial fragmentation observed. Transforminggrowth factor-β (TGFβ) was identified as a key driver of this phenotype as blocking its activity reversed many metabolic and functional readouts. Expression of glycoprotein-A repetitions predominant (GARP) and latency associated peptide (LAP), which are involved with a novel TGFβ processing pathway, was increased on NK cells from some patients. Blocking the GARP–TGFβ axis recapitulated the effects of TGFβ neutralization, highlighting GARP as a novel NK cell immunotherapy target for the first time. Conclusions TGFβ contributes to metabolic dysfunction of circulating NK cells in patients with metastatic breast cancer. Blocking TGFβ and/or GARP can restore NK cell metabolism and function and is an important target for improving NK cell-based immunotherapies.
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Affiliation(s)
- Karen Slattery
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
| | - Elena Woods
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
| | | | - Sam Marks
- Medical Oncology Service, St. James's Hospital, Dublin, Ireland
| | - Sonya Chew
- Medical Oncology Service, St. James's Hospital, Dublin, Ireland
| | - Michael Conroy
- Medical Oncology Service, St. James's Hospital, Dublin, Ireland
| | | | | | - John Kennedy
- Medical Oncology Service, St. James's Hospital, Dublin, Ireland
| | - Sophie Lucas
- Duve Institute, Université catholique de Louvain, Brussels, Belgium
| | - David K Finlay
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland.,School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin, Ireland
| | - Clair M Gardiner
- School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland
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27
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Poznanski SM, Ritchie TM, Fan IY, El-Sayes A, Portillo AL, Ben-Avi R, Rojas EA, Chew MV, Shargall Y, Ashkar AA. Expanded human NK cells from lung cancer patients sensitize patients' PDL1-negative tumors to PD1-blockade therapy. J Immunother Cancer 2021; 9:jitc-2020-001933. [PMID: 33479024 PMCID: PMC7825270 DOI: 10.1136/jitc-2020-001933] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2020] [Indexed: 01/14/2023] Open
Abstract
Lung cancer remains the leading cause of cancer death worldwide despite the significant progress made by immune checkpoint inhibitors, including programmed death receptor-1 (PD1)/PD ligand 1 (PDL1)-blockade therapy. PD1/PDL1-blockade has achieved unprecedented tumor regression in some patients with advanced lung cancer. However, the majority of patients fail to respond to PD1/PDL1 inhibitors. The high rate of therapy non-response results from insufficient PDL1 expression on most patients' tumors and the presence of further immunosuppressive mechanisms in the tumor microenvironment. Here, we sensitize non-responding tumors from patients with lung cancer to PD1-blockade therapy using highly cytotoxic expanded natural killer (NK) cells. We uncover that NK cells expanded from patients with lung cancer dismantle the immunosuppressive tumor microenvironment by maintaining strong antitumor activity against both PDL1+ and PDL1- patient tumors. In the process, through a contact-independent mechanism involving interferon γ, expanded NK cells rescued tumor killing by exhausted endogenous TILs and upregulated the tumor proportion score of PDL1 across patient tumors. In contrast, unexpanded NK cells, which are susceptible to tumor-induced immunosuppression, had no effect on tumor PDL1. As a result, combined treatment of expanded NK cells and PD1-blockade resulted in robust synergistic tumor destruction of initially non-responding patient tumors. Thus, expanded NK cells may overcome the critical roadblocks to extending the prodigious benefits of PD1-blockade therapy to more patients with lung cancer and other tumor types.
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Affiliation(s)
- Sophie M Poznanski
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Tyrah M Ritchie
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Isabella Y Fan
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Abdullah El-Sayes
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Ana L Portillo
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Ronny Ben-Avi
- Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Eduardo A Rojas
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Marianne V Chew
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | | | - Ali A Ashkar
- McMaster Immunology Research Centre, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
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28
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Eitler J, Wotschel N, Miller N, Boissel L, Klingemann HG, Wels W, Tonn T. Inability of granule polarization by NK cells defines tumor resistance and can be overcome by CAR or ADCC mediated targeting. J Immunother Cancer 2021; 9:jitc-2020-001334. [PMID: 33468562 PMCID: PMC7817806 DOI: 10.1136/jitc-2020-001334] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/14/2020] [Indexed: 12/31/2022] Open
Abstract
Background On encountering a susceptible target, natural killer (NK) cells mediate cytotoxicity through highly regulated steps of directed degranulation. Cytotoxic granules converge at the microtubule organizing center and are polarized toward the immunological synapse (IS), followed by granule exocytosis. NK cell retargeting by chimeric antigen receptors (CARs) or mAbs represents a promising strategy for overcoming tumor cell resistance. However, little is known about the lytic granule dynamics of such retargeted NK cells toward NK-cell-resistant tumors. Methods Here, we used spinning disk confocal microscopy for live-cell imaging to analyze granule-mediated NK cell cytotoxicity in ErbB2-targeted CAR-expressing NK-92 cells (NK-92/5.28.z) and high-affinity FcR transgenic NK-92 cells plus Herceptin toward ErbB2-positive breast cancer cells (MDA-MB-453), which are resistant to parental NK-92. Results Unmodified NK-92 cells cocultured with resistant cancer cells showed stable conjugate formation and granule clustering, but failed to polarize granules to the IS. In contrast, retargeting by CAR or FcR+Herceptin toward the MDA-MB-453 cells enabled granule polarization to the IS, resulting in highly effective cytotoxicity. We found that in NK-92 the phosphoinositide 3-kinase pathway was activated after contact with resistant MDA-MB-453, while phospholipase C-γ (PLCγ) and mitogen-activated protein kinase (MEK)/extracellular signal-regulated kinase (ERK) were not activated. In contrast, retargeting by CAR or antibody-dependent cell-mediated cytotoxicity (ADCC) provided the missing PLCγ and MEK/ERK signals. Conclusions These observations suggest that NK cells can create conjugates with resistant cancer cells and respond by granule clustering, but the activation signals are insufficient to induce granule polarization and consequent release of lytic enzymes. Retargeting by CAR and/or the FcR/mAb (ADCC) axis provide the necessary signals, leading to granule polarization and thereby overcoming tumor cell resistance. Keywords: NK cells, NK-92, haNK, ADCC, Chimeric Antigen Receptor (CAR), breast cancer, cancer immunotherapy, live-cell imaging, granule polarization
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Affiliation(s)
- Jiri Eitler
- Experimental Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Dresden University of Technology, Dresden, Germany.,Institute for Transfusion Medicine, German Red Cross Blood Donation Service North-East, Dresden, Germany
| | - Natalie Wotschel
- Experimental Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Dresden University of Technology, Dresden, Germany.,Institute for Transfusion Medicine, German Red Cross Blood Donation Service North-East, Dresden, Germany
| | - Nicole Miller
- Experimental Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Dresden University of Technology, Dresden, Germany.,Institute for Transfusion Medicine, German Red Cross Blood Donation Service North-East, Dresden, Germany
| | | | | | - Winfried Wels
- Institute for Tumor Biology and Experimental Therapy, Georg-Speyer-Haus, Frankfurt am Main, Germany.,Frankfurt Cancer Institute, Goethe University Frankfurt, Frankfurt am Main, Germany.,German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany
| | - Torsten Tonn
- Experimental Transfusion Medicine, Faculty of Medicine Carl Gustav Carus, Dresden University of Technology, Dresden, Germany .,Institute for Transfusion Medicine, German Red Cross Blood Donation Service North-East, Dresden, Germany.,German Cancer Consortium (DKTK), Partner Site Dresden, Dresden, Germany
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29
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Canzonetta C, Pelosi A, Di Matteo S, Veneziani I, Tumino N, Vacca P, Munari E, Pezzullo M, Theuer C, De Vito R, Pistoia V, Tomao L, Locatelli F, Moretta L, Caruana I, Azzarone B. Identification of neuroblastoma cell lines with uncommon TAZ +/mesenchymal stromal cell phenotype with strong suppressive activity on natural killer cells. J Immunother Cancer 2021; 9:jitc-2020-001313. [PMID: 33452207 PMCID: PMC7813384 DOI: 10.1136/jitc-2020-001313] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2020] [Indexed: 12/14/2022] Open
Abstract
Background Neuroblastoma (NB) is the most common, extracranial childhood solid tumor arising from neural crest progenitor cells and is a primary cause of death in pediatric patients. In solid tumors, stromal elements recruited or generated by the cancer cells favor the development of an immune-suppressive microenvironment. Herein, we investigated in NB cell lines and in NB biopsies, the presence of cancer cells with mesenchymal phenotype and determined the immune-suppressive properties of these tumor cells on natural killer (NK) cells. Methods We assessed the mesenchymal stromal cell (MSC)-like phenotype and function of five human NB cell lines and the presence of this particular subset of neuroblasts in NB biopsies using flow-cytometry, immunohistochemistry, RT-qPCR, cytotoxicity assays, western blot and silencing strategy. We corroborated our data consulting a public gene-expression dataset. Results Two NB cell lines, SK-N-AS and SK-N-BE(2)C, exhibited an unprecedented MSC phenotype (CD105+/CD90+/CD73+/CD29+/CD146+/GD2+/TAZ+). In these NB-MSCs, the ectoenzyme CD73 and the oncogenic/immune-regulatory transcriptional coactivator TAZ were peculiar markers. Their MSC-like nature was confirmed by their adipogenic and osteogenic differentiation potential. Immunohistochemical analysis confirmed the presence of neuroblasts with MSC phenotype (CD105+/CD73+/TAZ+). Moreover, a public gene-expression dataset revealed that, in stage IV NB, a higher expression of TAZ and CD105 strongly correlated with a poorer outcome. Among the NB-cell lines analyzed, only NB-MSCs exhibited multifactorial resistance to NK-mediated lysis, inhibition of activating NK receptors, signal adaptors and of NK-cell cytotoxicity through cell-cell contact mediated mechanisms. The latter property was controlled partially by TAZ, since its silencing in NB cells efficiently rescued NK-cell cytotoxic activity, while its overexpression induced opposite effects in non-NB-MSC cells. Conclusions We identified a novel NB immunoregulatory subset that: (i) displayed phenotypic and functional properties of MSC, (ii) mediated multifactorial resistance to NK-cell-induced killing and (iii) efficiently inhibited, in coculture, the cytotoxic activity of NK cells against target cells through a TAZ-dependent mechanism. These findings indicate that targeting novel cellular and molecular components may disrupt the immunomodulatory milieu of the NB microenvironment ameliorating the response to conventional treatments as well as to advanced immunotherapeutic approaches, including adoptive transfer of NK cells and chimeric antigen receptor T or NK cells.
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Affiliation(s)
| | - Andrea Pelosi
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Sabina Di Matteo
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Irene Veneziani
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Nicola Tumino
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Paola Vacca
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Enrico Munari
- Pathology Department, IRCCS Sacro Cuore Don Calabria, Negrar, Verona, Veneto, Italy.,Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Marco Pezzullo
- Core Facilities, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Rita De Vito
- Anatomical Pathology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Vito Pistoia
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Luigi Tomao
- Department of Paediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Franco Locatelli
- Department of Paediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy.,Department of Gynaecology/Obstetrics and Paediatrics, Sapienza, University of Rome, Rome, Italy
| | - Lorenzo Moretta
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | - Ignazio Caruana
- Department of Paediatric Haematology and Oncology, Cell and Gene Therapy, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy .,Department of Paediatric Haematology, Oncology and Stem Cell Transplantation University Children's Hospital of Würzburg, Würzburg, Germany
| | - Bruno Azzarone
- Immunology Area, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
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30
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Brownlie D, Doughty-Shenton D, Yh Soong D, Nixon C, O Carragher N, M Carlin L, Kitamura T. Metastasis-associated macrophages constrain antitumor capability of natural killer cells in the metastatic site at least partially by membrane bound transforming growth factor β. J Immunother Cancer 2021; 9:e001740. [PMID: 33472858 PMCID: PMC7818844 DOI: 10.1136/jitc-2020-001740] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/20/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Metastatic breast cancer is a leading cause of cancer-related death in women worldwide. Infusion of natural killer (NK) cells is an emerging immunotherapy for such malignant tumors, although elimination of the immunosuppressive tumor environment is required to improve its efficacy. The effects of this "metastatic" tumor environment on NK cells, however, remain largely unknown. Previous studies, including our own, have demonstrated that metastasis-associated macrophages (MAMs) are one of the most abundant immune cell types in the metastatic tumor niche in mouse models of metastatic breast cancer. We thus investigated the effects of MAMs on antitumor functions of NK cells in the metastatic tumor microenvironment. METHODS MAMs were isolated from the tumor-bearing lung of C57BL/6 mice intravenously injected with E0771-LG mouse mammary tumor cells. The effects of MAMs on NK cell cytotoxicity towards E0771-LG cells were evaluated in vitro by real-time fluorescence microscopy. The effects of MAM depletion on NK cell activation, maturation, and accumulation in the metastatic lung were evaluated by flow cytometry (CD69, CD11b, CD27) and in situ hybridization (Ncr1) using colony-stimulating factor 1 (CSF-1) receptor conditional knockout (Csf1r-cKO) mice. Finally, metastatic tumor loads in the chest region of mice were determined by bioluminescence imaging in order to evaluate the effect of MAM depletion on therapeutic efficacy of endogenous and adoptively transferred NK cells in suppressing metastatic tumor growth. RESULTS MAMs isolated from the metastatic lung suppressed NK cell-induced tumor cell apoptosis in vitro via membrane-bound transforming growth factor β (TGF-β) dependent mechanisms. In the tumor-challenged mice, depletion of MAMs increased the percentage of activated (CD69+) and mature (CD11b+CD27-) NK cells and the number of Ncr1+ NK cells as well as NK cell-mediated tumor rejection in the metastatic site. Moreover, MAM depletion or TGF-β receptor antagonist treatment significantly enhanced the therapeutic efficacy of NK cell infusion in suppressing early metastatic tumor outgrowth. CONCLUSION This study demonstrates that MAMs are a main negative regulator of NK cell function within the metastatic tumor niche, and MAM targeting is an attractive strategy to improve NK cell-based immunotherapy for metastatic breast cancer.
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Affiliation(s)
- Demi Brownlie
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Dahlia Doughty-Shenton
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Daniel Yh Soong
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
| | - Colin Nixon
- Cancer Research UK Beatson Institute, Glasgow, UK
| | - Neil O Carragher
- Cancer Research UK Edinburgh Centre, MRC Institute of Genetics & Molecular Medicine, The University of Edinburgh, Edinburgh, UK
| | - Leo M Carlin
- Cancer Research UK Beatson Institute, Glasgow, UK
- Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Takanori Kitamura
- MRC Centre for Reproductive Health, Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, UK
- Royal (Dick) School of Veterinary Studies and Roslin Institute, The University of Edinburgh, Edinburgh, UK
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31
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Charap AJ, Enokida T, Brody R, Sfakianos J, Miles B, Bhardwaj N, Horowitz A. Landscape of natural killer cell activity in head and neck squamous cell carcinoma. J Immunother Cancer 2020; 8:jitc-2020-001523. [PMID: 33428584 PMCID: PMC7754625 DOI: 10.1136/jitc-2020-001523] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/16/2020] [Indexed: 12/13/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) encompasses a set of cancers arising from the epithelia of the upper aerodigestive tract, accounting for a significant burden of disease worldwide due to the disease’s mortality, morbidity, and predilection for recurrence. Prognosis of HNSCC in the recurrent and/or metastatic (R/M-HNSCC) setting is especially poor and effective treatment options increasingly rely on modulating T-cell antitumor responses. Still, immunotherapy response rates are generally low, prompting the exploration of novel strategies that incorporate other effector cells within the tumor microenvironment. Within the last decade, important advances have been made leveraging the powerful innate antitumor function of natural killer (NK) cells to treat solid tumors, including head and neck squamous cell carcinoma. NK cells are hybrid innate-adaptive effector cells capable of directly eliminating tumor cells in addition to initiating adaptive antitumor immune responses. In the setting of HNSCC, NK cells are important for tumor surveillance and control, and NK cell infiltration has repeatedly been associated with a favorable prognosis. Yet, HNSCC-infiltrating NK cells are susceptible to an array of immune evasion strategies employed by tumors that must be overcome to fully realize the antitumor potential of NK cells. We believe that a conceptual framework informed by the basic biological understanding of the mechanisms underlying NK cell activation can improve treatment of HNSCC, in part by selecting for patients most likely to respond to NK cell-based immunotherapy. Herein, we review the activity of NK cells in HNSCC, paying special attention to the role of environmental and genetic determinants of NK cell antitumor function. Moreover, we explore the evidence that NK cells are a crucial determinant of the efficacy of both established and emerging treatments for HNSCC.
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Affiliation(s)
- Andrew J Charap
- Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Tomohiro Enokida
- Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Rachel Brody
- Pathology, Molecular and Cell Based Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - John Sfakianos
- Urology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Brett Miles
- Otolaryngology, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Nina Bhardwaj
- Medicine, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Amir Horowitz
- Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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Okoye I, Xu L, Motamedi M, Parashar P, Walker JW, Elahi S. Galectin-9 expression defines exhausted T cells and impaired cytotoxic NK cells in patients with virus-associated solid tumors. J Immunother Cancer 2020; 8:e001849. [PMID: 33310773 PMCID: PMC7735134 DOI: 10.1136/jitc-2020-001849] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND We have previously reported that the upregulation of galectin-9 (Gal-9) on CD4+ and CD8+ T cells in HIV patients was associated with impaired T cell effector functions. Gal-9 is a ligand for T cell immunoglobulin and mucin domain-3, and its expression on T cells in cancer has not been investigated. Therefore, we aimed to investigate the expression level and effects of Gal-9 on T cell functions in patients with virus-associated solid tumors (VASTs). METHODS 40 patients with VASTs through a non-randomized and biomarker-driven phase II LATENT trial were investigated. Peripheral blood mononuclear cells and tumor biopsies were obtained and subjected to immunophenotyping. In this trial, the effects of oral valproate and avelumab (anti-PD-L1) was investigated in regards to the expression of Gal-9 on T cells. RESULTS We report the upregulation of Gal-9 expression by peripheral and tumor-infiltrating CD4+ and CD8+ T lymphocytes in patients with VASTs. Our results indicate that Gal-9 expression is associated with dysfunctional T cell effector functions in the periphery and tumor microenvironment (TME). Coexpression of Gal-9 with PD-1 or T cell immunoglobulin and ITIM domain (TIGIT) exhibited a synergistic inhibitory effect and enhanced an exhausted T cell phenotype. Besides, responding patients to treatment had lower Gal-9 mRNA expression in the TME. Translocation of Gal-9 from the cytosol to the cell membrane of T cells following stimulation suggests persistent T cell receptor (TCR) stimulation as a potential contributing factor in Gal-9 upregulation in patients with VASTs. Moreover, partial colocalization of Gal-9 with CD3 on T cells likely impacts the initiation of signal transduction via TCR as shown by the upregulation of ZAP70 in Gal-9+ T cells. Also, we found an expansion of Gal-9+ but not TIGIT+ NK cells in patients with VASTs; however, dichotomous to TIGIT+ NK cells, Gal-9+ NK cells exhibited impaired cytotoxic molecules but higher Interferon gamma (IFN-γ) expression. CONCLUSION Our data indicate that higher Gal-9-expressing CD8+ T cells were associated with poor prognosis following immunotherapy with anti-Programmed death-ligand 1 (PD-L1) (avelumab) in our patients' cohort. Therefore, for the very first time to our knowledge, we report Gal-9 as a novel marker of T cell exhaustion and the potential target of immunotherapy in patients with VASTs.
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Affiliation(s)
- Isobel Okoye
- School of Dentistry, Faculty of Medicine and Dentistrty, University of Alberta, Edmonton, AB, Canada
| | - Lai Xu
- School of Dentistry, Faculty of Medicine and Dentistrty, University of Alberta, Edmonton, AB, Canada
| | - Melika Motamedi
- Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Pallavi Parashar
- School of Dentistry, Faculty of Medicine and Dentistrty, University of Alberta, Edmonton, AB, Canada
| | - John W Walker
- Medical Oncology, Cross Cancer Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Shokrollah Elahi
- School of Dentistry, Faculty of Medicine and Dentistrty, University of Alberta, Edmonton, AB, Canada
- Medical Microbiology and Immunology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Medical Oncology, Cross Cancer Institute, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
- Li Ka Shing Institute of Virology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
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Judge SJ, Darrow MA, Thorpe SW, Gingrich AA, O'Donnell EF, Bellini AR, Sturgill IR, Vick LV, Dunai C, Stoffel KM, Lyu Y, Chen S, Cho M, Rebhun RB, Monjazeb AM, Murphy WJ, Canter RJ. Analysis of tumor-infiltrating NK and T cells highlights IL-15 stimulation and TIGIT blockade as a combination immunotherapy strategy for soft tissue sarcomas. J Immunother Cancer 2020; 8:jitc-2020-001355. [PMID: 33158916 PMCID: PMC7651745 DOI: 10.1136/jitc-2020-001355] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/06/2020] [Indexed: 12/13/2022] Open
Abstract
Purpose Given the unmet need for novel immunotherapy in soft tissue sarcoma (STS), we sought to characterize the phenotype and function of intratumoral natural killer (NK) and T cells to identify novel strategies to augment tumor-infiltrating lymphocyte (TIL) function. Experimental design Using prospectively collected specimens from dogs and humans with sarcomas, archived specimens, and The Cancer Genome Atlas (TCGA) data, we evaluated blood and tumor NK and T cell phenotype and function and correlated those with outcome. We then assessed the effects of interleukin 15 (IL-15) stimulation on both NK and T cell activation and TIGIT upregulation. Finally, we evaluated cytotoxic effects of IL-15 combined with TIGIT blockade using a novel anti-TIGIT antibody. Results TILs were strongly associated with survival outcome in both archived tissue and TCGA, but higher TIL content was also associated with higher TIGIT expression. Compared with blood, intratumoral NK and T cells showed significantly higher expression of both activation and exhaustion markers, in particular TIGIT. Ex vivo stimulation of blood and tumor NK and T cells from patients with STS with IL-15 further increased both activation and exhaustion markers, including TIGIT. Dogs with metastatic osteosarcoma receiving inhaled IL-15 also exhibited upregulation of activation markers and TIGIT. Ex vivo, combined IL-15 and TIGIT blockade using STS blood and tumor specimens significantly increased cytotoxicity against STS targets. Conclusion Intratumoral NK and T cells are prognostic in STS, but their activation is marked by significant upregulation of TIGIT. Our data suggest that combined IL-15 and TIGIT blockade may be a promising clinical strategy in STS.
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Affiliation(s)
- Sean J Judge
- Surgery, University of California Davis School of Medicine, Sacramento, California, USA
| | - Morgan A Darrow
- Pathology and Laboratory Medicine, University of California Davis School of Medicine, Sacramento, California, USA
| | - Steve W Thorpe
- Orthopedic Surgery, University of California Davis School of Medicine, Sacramento, California, USA
| | - Alicia A Gingrich
- Surgery, University of California Davis School of Medicine, Sacramento, California, USA
| | - Edmond F O'Donnell
- Orthopedic Surgery, University of California Davis School of Medicine, Sacramento, California, USA
| | - Alyssa R Bellini
- Surgery, University of California Davis School of Medicine, Sacramento, California, USA
| | - Ian R Sturgill
- Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Logan V Vick
- Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Cordelia Dunai
- Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Kevin M Stoffel
- Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Yue Lyu
- Statistics, University of California Davis, Davis, California, USA
| | - Shuai Chen
- Public Health Sciences, University of California Davis School of Medicine, Sacramento, California, USA
| | - May Cho
- Internal Medicine, University of California Davis School of Medicine, Sacramento, California, USA
| | - Robert B Rebhun
- Center for Companion Animal Health, Department of Surgical and Radiological Sciences, University of California Davis School of Veterinary Medicine, Davis, California, USA
| | - Arta M Monjazeb
- Radiation Oncology, University of California Davis School of Medicine, Sacramento, California, USA
| | - William J Murphy
- Dermatology, University of California Davis School of Medicine, Sacramento, California, USA
| | - Robert J Canter
- Surgery, University of California Davis School of Medicine, Sacramento, California, USA
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Kaliamurthi S, Selvaraj G, Kaushik AC, Gu KR, Wei DQ. Designing of CD8 + and CD8 +-overlapped CD4 + epitope vaccine by targeting late and early proteins of human papillomavirus. Biologics 2018; 12:107-125. [PMID: 30323556 PMCID: PMC6174296 DOI: 10.2147/btt.s177901] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND AIM Human papillomavirus (HPV) is an oncogenic agent that causes over 90% of cases of cervical cancer in the world. Currently available prophylactic vaccines are type specific and have less therapeutic efficiency. Therefore, we aimed to predict the potential species-specific and therapeutic epitopes from the protein sequences of HPV45 by using different immunoinformatics tools. METHODS Initially, we determined the antigenic potential of late (L1 and L2) and early (E1, E2, E4, E5, E6, and E7) proteins. Then, major histocompatibility complex class I-restricted CD8+ T-cell epitopes were selected based on their immunogenicity. In addition, epitope conservancy, population coverage (PC), and target receptor-binding affinity of the immunogenic epitopes were determined. Moreover, we predicted the possible CD8+, nested interferon gamma (IFN-γ)-producing CD4+, and linear B-cell epitopes. Further, antigenicity, allergenicity, immunogenicity, and system biology-based virtual pathway associated with cervical cancer were predicted to confirm the therapeutic efficiency of overlapped epitopes. RESULTS Twenty-seven immunogenic epitopes were found to exhibit cross-protection (≥55%) against the 15 high-risk HPV strains (16, 18, 31, 33, 35, 39, 51, 52, 56, 58, 59, 68, 69, 73, and 82). The highest PC was observed in Europe (96.30%), North America (93.98%), West Indies (90.34%), North Africa (90.14%), and East Asia (89.47%). Binding affinities of 79 docked complexes observed as global energy ranged from -10.80 to -86.71 kcal/mol. In addition, CD8+ epitope-overlapped segments in CD4+ and B-cell epitopes demonstrated that immunogenicity and IFN-γ-producing efficiency ranged from 0.0483 to 0.5941 and 0.046 to 18, respectively. Further, time core simulation revealed the overlapped epitopes involved in pRb, p53, COX-2, NF-X1, and HPV45 infection signaling pathways. CONCLUSION Even though the results of this study need to be confirmed by further experimental peptide sensitization studies, the findings on immunogenic and IFN-γ-producing CD8+ and overlapped epitopes provide new insights into HPV vaccine development.
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Affiliation(s)
- Satyavani Kaliamurthi
- Centre of Interdisciplinary Science - Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China,
| | - Gurudeeban Selvaraj
- Centre of Interdisciplinary Science - Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China,
| | - Aman Chandra Kaushik
- The State Key Laboratory of Microbial Metabolism, College of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China,
| | - Ke-Ren Gu
- Centre of Interdisciplinary Science - Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China,
- College of Chemistry, Chemical Engineering and Environment, Henan University of Technology, Zhengzhou, China
| | - Dong-Qing Wei
- Centre of Interdisciplinary Science - Computational Life Sciences, College of Food Science and Engineering, Henan University of Technology, Zhengzhou, China,
- The State Key Laboratory of Microbial Metabolism, College of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, China,
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Schiffer CA, Cortes JE, Hochhaus A, Saglio G, le Coutre P, Porkka K, Mustjoki S, Mohamed H, Shah NP. Lymphocytosis after treatment with dasatinib in chronic myeloid leukemia: Effects on response and toxicity. Cancer 2016; 122:1398-407. [PMID: 26998677 PMCID: PMC5071708 DOI: 10.1002/cncr.29933] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 01/11/2016] [Accepted: 01/20/2016] [Indexed: 01/24/2023]
Abstract
BACKGROUND The proliferation of clonal cytotoxic T‐cells or natural killer cells has been observed after dasatinib treatment in small studies of patients with chronic myeloid leukemia (CML). METHODS The incidence of lymphocytosis and its association with response, survival, and side effects were assessed in patients from 3 large clinical trials. Overall, 1402 dasatinib‐treated patients with newly diagnosed CML in chronic phase (CML‐CP), CML‐CP refractory/intolerant to imatinib, or with CML in accelerated or myeloid‐blast phase were analyzed. RESULTS Lymphocytosis developed in 32% to 35% of patients and persisted for >12 months. This was not observed in the patients who received treatment with imatinib. Dasatinib‐treated patients in all stages of CML who developed lymphocytosis were more likely to achieve a complete cytogenetic response, and patients who had CML‐CP with lymphocytosis were more likely to achieve major and deep molecular responses. Progression‐free and overall survival rates were significantly longer in patients with CML‐CP who were refractory to or intolerant of imatinib and had lymphocytosis. Pleural effusions developed more commonly in patients with lymphocytosis. CONCLUSIONS Overall, lymphocytosis occurred and persisted in many dasatinib‐treated patients in all phases of CML. Its presence was associated with higher response rates, significantly longer response durations, and increased overall survival, suggesting an immunomodulatory effect. Prospective studies are warranted to characterize the functional activity of these cells and to assess whether an immunologic effect against CML is detectable. Cancer 2016;122:1398–1407. © 2016 The Authors. Cancer published by Wiley Periodicals, Inc. on behalf of American Cancer Society. Lymphocytosis develops frequently after treatment of chronic myeloid leukemia with dasatinib and is associated with higher response rates, significantly longer response durations, and increased overall survival. Prospective studies are warranted to assess whether dasatinib produces an immunomodulatory effect against chronic myeloid leukemia.
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Affiliation(s)
- Charles A Schiffer
- Barbara Ann Karmanos Cancer Institute, Wayne State University, Detroit, Michigan
| | - Jorge E Cortes
- The University of Texas M.D. Anderson Cancer Center, Houston, Texas
| | | | - Giuseppe Saglio
- San Luigi Gonaga Hospital, University of Turin, Orbassano-Turin, Italy
| | - Philipp le Coutre
- Charite-Campus Virchow Clinic, Berlin Medical University, Berlin, Germany
| | - Kimmo Porkka
- Department of Hematology and Hematology Research Unit, Helsinki University Central Hospital Comprehensive Cancer Center, University of Helsinki, Helsinki, Finland
| | - Satu Mustjoki
- Department of Hematology and Hematology Research Unit, Helsinki University Central Hospital Comprehensive Cancer Center, University of Helsinki, Helsinki, Finland
| | | | - Neil P Shah
- University of California, San Francisco School of Medicine, San Francisco, California
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Zhou LW, Ding HL, Li MQ, Jin S, Wang XS, Ji LJ. Effect of tramadol on perioperative immune function in patients undergoing gastric cancer surgeries. Anesth Essays Res 2015; 7:54-7. [PMID: 25885721 PMCID: PMC4173499 DOI: 10.4103/0259-1162.113992] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND A prospective randomized controlled trial was designed to observe the effect of tramadol on T-lymphocyte subsets, activated T cell and natural killer (NK) cells of patients undergoing gastric cancer surgeries. SUBJECTS AND METHODS Thirty patients undergoing elective gastric cancer surgeries under general anesthesia were randomly divided into two groups. Before anesthesia induction, Group I did not receive any drugs and Group II received intramuscular tramadol 1 mg/kg. Peripheral venous blood samples were taken before anesthesia, 1 h after incision and postoperation. CD3(+), CD3(+) CD4(+), CD3(+) CD8(+), CD3(-)CD16(+) CD56(+) (NK) cells and CD3(+) human leukocyte antigen (HLA)-DR(+) (activated T cell) were measured by flow cytometer. RESULTS One hour after incision, CD3(+), CD3(+) CD4+, CD3(+) CD4(+)/CD3(+) CD8(+), CD3(-)CD16(+) CD56(+), and CD3(+) HLA-DR(+) cells in the experimental and control group were significantly decreased compared with their baselines (P < 0.05), while the values of Group I were lower than those of Group II (P < 0.05). After surgery, the values of Group I were lower than their baselines (P < 0.05). But the values of Group II had no significant difference compared with their baselines. CONCLUSION Tramadol can reduce the decrease of T-lymphocytes subsets and NK cells, thus improve the cellular immune function in the perioperation of gastric cancer.
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Affiliation(s)
- Li-Wen Zhou
- Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei Province, China
| | - Han-Lin Ding
- Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei Province, China
| | - Ming-Qiang Li
- Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei Province, China
| | - Sheng Jin
- Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei Province, China
| | - Xue-Song Wang
- Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei Province, China
| | - Li-Juan Ji
- Department of Anesthesiology, Xiangyang Central Hospital, Hubei University of Arts and Science, Hubei Province, China
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Abstract
Interactions between killer immunoglobulin-like receptors (KIRs) and their HLA-A, -B, and -C ligands diversify the functions of human natural killer cells. Consequently, combinations of KIR and HLA genotypes affect resistance to infection and autoimmunity, success of reproduction and outcome of hematopoietic cell transplantation. HLA-C, with its C1 and C2 epitopes, evolved in hominids to be specialized KIR ligands. The system’s foundation was the C1 epitope, with C2 a later addition, by several million years. The human inhibitory receptor for C1 is encoded by KIR2DL2/3, a gene having two divergent allelic lineages: KIR2DL2 is a B KIR haplotype component and KIR2DL3 an A KIR haplotype component. Although KIR2DL2 and KIR2DL3 exhibit quantitative differences in specificity and avidity for HLA-C, they qualitatively differ in their genetics, functional effect, and clinical influence. This is due to linkage disequilibrium between KIR2DL2 and KIR2DS2, a closely related activating receptor that was selected for lost recognition of HLA-C.
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Affiliation(s)
- Achim K Moesta
- Genome Analysis Unit, Discovery Research, Amgen Inc., South San Francisco , CA, USA
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Martz E, Burakoff SJ, Benacerraf B. Interruption of the sequential release of small and large molecules from tumor cells by low temperature during cytolysis mediated by immune T-cells or complement. Proc Natl Acad Sci U S A 1974; 71:177-81. [PMID: 4359327 PMCID: PMC387960 DOI: 10.1073/pnas.71.1.177] [Citation(s) in RCA: 42] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Specific lysis of tumor cells by thymus-derived lymphocytes from alloimmunized mice (T-effector specific lysis) was studied with target cells labeled with isotopes attached to both small ((14)C-labeled nicotinamide) and large ((51)Cr-labeled) molecules. The results confirm and extend previous reports that target cells release small molecules considerably earlier than large molecules during T-effector specific lysis. After interruption of T-effector specific lysis by specific antibody and complement directed against the killer cells, or by ethylenediaminetetraacetic acid, release of both isotopes continued, eventually reaching identical levels of specific release, the value of which represents the fraction of the target cell population which had been committed to die at the time these treatments were applied. On the other hand, release of both isotopes during T-effector specific lysis stops immediately when the cultures are cooled to 0 degrees . Thus, while ethylenediaminetetraacetic acid or specific complement-mediated lysis of the killer cells merely prevents the initiation of any new damage to target cells, cooling to 0 degrees also stops the lytic process in already-damaged target cells. The colloid osmotic phase of target cell lysis induced by specific antibody and complement was similarly stopped at 0 degrees in tumor cells, but not in erythrocytes. Thus, in tumor target cells, both T-effector specific lysis and complement cause a sequential release of progressively larger molecules which can be immediately stopped at any point by cooling to 0 degrees .
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