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Granja T, Köhler D, Tang L, Burkard P, Eggstein C, Hemmen K, Heinze KG, Heck-Swain KL, Koeppen M, Günther S, Blaha M, Magunia H, Bamberg M, Konrad F, Ngamsri KC, Fuhr A, Keller M, Bernard AM, Haeberle HA, Bakchoul T, Zarbock A, Nieswandt B, Rosenberger P. Semaphorin 7A coordinates neutrophil response during pulmonary inflammation and sepsis. Blood Adv 2024; 8:2660-2674. [PMID: 38489236 PMCID: PMC11157222 DOI: 10.1182/bloodadvances.2023011778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 03/17/2024] Open
Abstract
ABSTRACT Pulmonary defense mechanisms are critical for host integrity during pneumonia and sepsis. This defense is fundamentally dependent on the activation of neutrophils during the innate immune response. Recent work has shown that semaphorin 7A (Sema7A) holds significant impact on platelet function, yet its role on neutrophil function within the lung is not well understood. This study aimed to identify the role of Sema7A during pulmonary inflammation and sepsis. In patients with acute respiratory distress syndrome (ARDS), we were able to show a correlation between Sema7A and oxygenation levels. During subsequent workup, we found that Sema7A binds to the neutrophil PlexinC1 receptor, increasing integrins, and L-selectin on neutrophils. Sema7A prompted neutrophil chemotaxis in vitro and the formation of platelet-neutrophil complexes in vivo. We also observed altered adhesion and transmigration of neutrophils in Sema7A-/-animals in the lung during pulmonary inflammation. This effect resulted in increased number of neutrophils in the interstitial space of Sema7A-/- animals but reduced numbers of neutrophils in the alveolar space during pulmonary sepsis. This finding was associated with significantly worse outcome of Sema7A-/- animals in a model of pulmonary sepsis. Sema7A has an immunomodulatory effect in the lung, affecting pulmonary sepsis and ARDS. This effect influences the response of neutrophils to external aggression and might influence patient outcome. This trial was registered at www.ClinicalTrials.gov as #NCT02692118.
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Affiliation(s)
- Tiago Granja
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
- Lusofona's Research Center for Biosciences & Health Technologies, CBIOS-Universidade, Lisboa, Portugal
| | - David Köhler
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Linyan Tang
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
- Department of Intensive Care Medicine, Shenzhen University General Hospital, Shenzhen, China
| | - Philipp Burkard
- Institute of Experimental Biomedicine, University Hospital, University of Würzburg, Würzburg, Germany
| | - Claudia Eggstein
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Katherina Hemmen
- Rudolf Virchow Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg, Germany
| | - Katrin G. Heinze
- Rudolf Virchow Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg, Germany
| | - Ka-Lin Heck-Swain
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Michael Koeppen
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Sven Günther
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Maximilian Blaha
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Harry Magunia
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Maximilian Bamberg
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Franziska Konrad
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | | | - Anika Fuhr
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Marius Keller
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Alice M. Bernard
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Helene A. Haeberle
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
| | - Tamam Bakchoul
- Center for Clinical Transfusion Medicine, University Hospital of Tübingen, Tübingen, Germany
| | - Alexander Zarbock
- Department of Anesthesiology and Intensive Care Medicine and Pain Medicine, University Hospital, Münster, Germany
| | - Bernhard Nieswandt
- Department of Intensive Care Medicine, Shenzhen University General Hospital, Shenzhen, China
| | - Peter Rosenberger
- Department of Anesthesiology and Intensive Care Medicine, University Hospital, Tübingen, Germany
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Rosik J, Kulpa J, Szczepanik M, Pawlik A. The Role of Semaphorins in the Pathogenesis of Rheumatoid Arthritis. Cells 2024; 13:618. [PMID: 38607057 PMCID: PMC11011349 DOI: 10.3390/cells13070618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 04/13/2024] Open
Abstract
Rheumatoid arthritis (RA) is one of the most common autoimmune diseases. Inflammation of the synovial fluid propagates the pathological process of angiogenesis. Semaphorins play a crucial role in the context of endothelial cell function, and their pleiotropic nature has various effects on the further development of RA. This narrative review summarises the various roles of semaphorins in the pathology of RA and whether they could play a role in developing novel RA treatment options.
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Affiliation(s)
- Jakub Rosik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland; (J.R.); (J.K.); (M.S.)
| | | | | | - Andrzej Pawlik
- Department of Physiology, Pomeranian Medical University, 70-111 Szczecin, Poland; (J.R.); (J.K.); (M.S.)
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Khalifa AM, Nakamura T, Sato Y, Harashima H. Vaccination with a combination of STING agonist-loaded lipid nanoparticles and CpG-ODNs protects against lung metastasis via the induction of CD11b highCD27 low memory-like NK cells. Exp Hematol Oncol 2024; 13:36. [PMID: 38553761 PMCID: PMC10981311 DOI: 10.1186/s40164-024-00502-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 03/13/2024] [Indexed: 04/01/2024] Open
Abstract
BACKGROUND Natural killer (NK) cells are effective in attacking tumor cells that escape T cell attack. Memory NK cells are believed to function as potent effector cells in cancer immunotherapy. However, knowledge of their induction, identification, and potential in vivo is limited. Herein, we report on the induction and identification of memory-like NK cells via the action of a combination of a stimulator of interferon genes (STING) agonist loaded into lipid nanoparticles (STING-LNPs) and cytosine-phosphorothioate-guanine oligodeoxynucleotides (CpG-ODNs), and the potential of the inducted memory-like NK cells to prevent melanoma lung metastasis. METHODS The antitumor effects of either the STING-LNPs, CpG-ODNs, or the combination therapy were evaluated using a B16-F10 lung metastasis model. The effect of the combined treatment was evaluated by measuring cytokine production. The induction of memory-like NK cells was demonstrated via flow cytometry and confirmed through their preventative effect. RESULTS The combination of STING-LNPs and CpG-ODNs tended to enhance the production of interleukin 12 (IL-12) and IL-18, and exerted a therapeutic effect against B16-F10 lung metastasis. The combination therapy increased the population of CD11bhighCD27low NK cells. Although monotherapies failed to show preventative effects, the combination therapy induced a surprisingly strong preventative effect, which indicates that CD11bhighCD27low cells could be a phenotype of memory-like NK cells. CONCLUSION As far as could be ascertained, this is the first report of the in vivo induction, identification, and confirmation of a phenotype of the memory-like NK cells through a prophylactic effect via the use of an immunotherapeutic drug. Our findings provide novel insights into the in vivo induction of CD11bhighCD27low memory-like NK cells thus paving the way for the development of efficient immunotherapies.
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Affiliation(s)
- Alaa M Khalifa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Hokkaido, Japan
| | - Takashi Nakamura
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Hokkaido, Japan.
| | - Yusuke Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Hokkaido, Japan
| | - Hideyoshi Harashima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo, 060-0812, Hokkaido, Japan.
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Bakhtiyaridovvombaygi M, Yazdanparast S, Mikanik F, Izadpanah A, Parkhideh S, Shahbaz Ghasabeh A, Roshandel E, Hajifathali A, Gharehbaghian A. Cytokine-Induced Memory-Like NK Cells: Emerging strategy for AML immunotherapy. Biomed Pharmacother 2023; 168:115718. [PMID: 37857247 DOI: 10.1016/j.biopha.2023.115718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease developed from the malignant expansion of myeloid precursor cells in the bone marrow and peripheral blood. The implementation of intensive chemotherapy and hematopoietic stem cell transplantation (HSCT) has improved outcomes associated with AML, but relapse, along with suboptimal outcomes, is still a common scenario. In the past few years, exploring new therapeutic strategies to optimize treatment outcomes has occurred rapidly. In this regard, natural killer (NK) cell-based immunotherapy has attracted clinical interest due to its critical role in immunosurveillance and their capabilities to target AML blasts. NK cells are cytotoxic innate lymphoid cells that mediate anti-viral and anti-tumor responses by producing pro-inflammatory cytokines and directly inducing cytotoxicity. Although NK cells are well known as short-lived innate immune cells with non-specific responses that have limited their clinical applications, the discovery of cytokine-induced memory-like (CIML) NK cells could overcome these challenges. NK cells pre-activated with the cytokine combination IL-12/15/18 achieved a long-term life span with adaptive immunity characteristics, termed CIML-NK cells. Previous studies documented that using CIML-NK cells in cancer treatment is safe and results in promising outcomes. This review highlights the current application, challenges, and opportunities of CIML-NK cell-based therapy in AML.
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Affiliation(s)
- Mehdi Bakhtiyaridovvombaygi
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somayeh Yazdanparast
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Fatemeh Mikanik
- Student Research Committee, Department of Hematology and Blood Banking, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amirhossein Izadpanah
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sahar Parkhideh
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amin Shahbaz Ghasabeh
- Department of Hematology and Blood Bank, School of Allied Medical Science, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Elham Roshandel
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Abbas Hajifathali
- Hematopoietic Stem Cell Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Ahmad Gharehbaghian
- Department of Hematology and Blood Bank, School of Allied Medical Science, Shahid Beheshti University of Medical Science, Tehran, Iran; Pediatric Congenital Hematologic Disorders Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Ko EJ, Kim MH, Kim DY, An H, Leem SH, Choi YH, Kim HS, Cha HJ. The Role of Human Endogenous Retrovirus (HERV)-K119 env in THP-1 Monocytic Cell Differentiation. Int J Mol Sci 2023; 24:15566. [PMID: 37958549 PMCID: PMC10648273 DOI: 10.3390/ijms242115566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/16/2023] [Accepted: 10/16/2023] [Indexed: 11/15/2023] Open
Abstract
Human endogenous retrovirus (HERV)-K was reportedly inserted into the human genome millions of years ago and is closely related to various diseases, including cancer and immune regulation. In our previous studies, CRISPR-Cas9-enabled knockout (KO) of the HERV-K env gene was found to potentially reduce cell proliferation, cell migration, and invasion in colorectal and ovarian cancer cell lines. The immune response involves the migration and invasion of cells and is similar to cancer; however, in certain ways, it is completely unlike cancer. Therefore, we induced HERV-K119 env gene KO in THP-1, a monocytic cell that can be differentiated into a macrophage, to investigate the role of HERV-K119 env in immune regulation. Cell migration and invasion were noted to be significantly increased in HERV-K119 env KO THP-1 cells than in MOCK, and these results were contrary to those of cancer cells. To identify the underlying mechanism of HERV-K119 env KO in THP-1 cells, transcriptome analysis and cytokine array analysis were conducted. Semaphorin7A (SEMA7A), which induces the production of cytokines in macrophages and monocytic cells and plays an important role in immune effector cell activation during an inflammatory immune response, was significantly increased in HERV-K119 env KO THP-1 cells. We also found that HERV-K119 env KO THP-1 cells expressed various macrophage-specific surface markers, suggesting that KO of HERV-K119 env triggers the differentiation of THP-1 cells from monocytic cells into macrophages. In addition, analysis of the expression of M1 and M2 macrophage markers showed that M1 macrophage marker cluster of differentiation 32 (CD32) was significantly increased in HERV-K119 env KO cells. These results suggest that HERV-K119 env is implicated in the differentiation of monocytic cells into M1 macrophages and plays important roles in the immune response.
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Affiliation(s)
- Eun-Ji Ko
- Departments of Parasitology and Genetics, Kosin University College of Medicine, Busan 49267, Republic of Korea; (E.-J.K.); (M.-H.K.); (D.-Y.K.); (H.A.)
| | - Min-Hye Kim
- Departments of Parasitology and Genetics, Kosin University College of Medicine, Busan 49267, Republic of Korea; (E.-J.K.); (M.-H.K.); (D.-Y.K.); (H.A.)
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea;
| | - Do-Ye Kim
- Departments of Parasitology and Genetics, Kosin University College of Medicine, Busan 49267, Republic of Korea; (E.-J.K.); (M.-H.K.); (D.-Y.K.); (H.A.)
| | - Hyojin An
- Departments of Parasitology and Genetics, Kosin University College of Medicine, Busan 49267, Republic of Korea; (E.-J.K.); (M.-H.K.); (D.-Y.K.); (H.A.)
| | - Sun-Hee Leem
- Department of Biomedical Sciences, Dong-A University, Busan 49315, Republic of Korea;
| | - Yung Hyun Choi
- Department of Biochemistry, College of Oriental Medicine, Dongeui University, Busan 47227, Republic of Korea;
| | - Heui-Soo Kim
- Department of Biological Sciences, College of Natural Sciences, Pusan National University, Busan 49241, Republic of Korea;
| | - Hee-Jae Cha
- Departments of Parasitology and Genetics, Kosin University College of Medicine, Busan 49267, Republic of Korea; (E.-J.K.); (M.-H.K.); (D.-Y.K.); (H.A.)
- Institute for Medical Science, Kosin University College of Medicine, Busan 49267, Republic of Korea
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Dou X, Peng M, Jiang R, Li W, Zhang X. Upregulated CD8 + MAIT cell differentiation and KLRD1 gene expression after inactivated SARS-CoV-2 vaccination identified by single-cell sequencing. Front Immunol 2023; 14:1174406. [PMID: 37654490 PMCID: PMC10466403 DOI: 10.3389/fimmu.2023.1174406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 06/30/2023] [Indexed: 09/02/2023] Open
Abstract
Background The primary strategy for reducing the incidence of COVID-19 is SARS-CoV-2 vaccination. Few studies have explored T cell subset differentiation and gene expressions induced by SARS-CoV-2 vaccines. Our study aimed to analyze T cell dynamics and transcriptome gene expression after inoculation with an inactivated SARS-CoV-2 vaccine by using single-cell sequencing. Methods Single-cell sequencing was performed after peripheral blood mononuclear cells were extracted from three participants at four time points during the inactivated SARS-CoV-2 vaccination process. After library preparation, raw read data analysis, quality control, dimension reduction and clustering, single-cell T cell receptor (TCR) sequencing, TCR V(D)J sequencing, cell differentiation trajectory inference, differentially expressed genes, and pathway enrichment were analyzed to explore the characteristics and mechanisms of postvaccination immunodynamics. Results Inactivated SARS-CoV-2 vaccination promoted T cell proliferation, TCR clone amplification, and TCR diversity. The proliferation and differentiation of CD8+ mucosal-associated invariant T (MAIT) cells were significantly upregulated, as were KLRD1 gene expression and the two pathways of nuclear-transcribed mRNA catabolic process, nonsense-mediated decay, and translational initiation. Conclusion Upregulation of CD8+ MAIT cell differentiation and KLRD1 expression after inactivated SARS-CoV-2 vaccination was demonstrated by single-cell sequencing. We conclude that the inactivated SARS-CoV-2 vaccine elicits adaptive T cell immunity to enhance early immunity and rapid response to the targeted virus.
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Affiliation(s)
- Xiaowen Dou
- Medical Laboratory of the Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Mian Peng
- Department of Critical Care Medicine, The Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Ruiwei Jiang
- Medical Laboratory of the Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Weiqin Li
- Department of Critical Care Medicine, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China
| | - Xiuming Zhang
- Medical Laboratory of the Third Affiliated Hospital of Shenzhen University, Shenzhen, China
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Hatami Z, Hashemi ZS, Eftekhary M, Amiri A, Karpisheh V, Nasrollahi K, Jafari R. Natural killer cell-derived exosomes for cancer immunotherapy: innovative therapeutics art. Cancer Cell Int 2023; 23:157. [PMID: 37543612 PMCID: PMC10403883 DOI: 10.1186/s12935-023-02996-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 07/19/2023] [Indexed: 08/07/2023] Open
Abstract
Chimeric antigen receptor natural killer cells (CAR-NK) promote off-the-shelf cellular therapy for solid tumors and malignancy.However,, the development of CAR-NK is due to their immune surveillance uncertainty and cytotoxicity challenge was restricted. Natural killer cell-derived exosome (NK-Exo) combine crucial targeted cellular therapies of NK cell therapies with unique non-toxic Exo as a self-origin shuttle against cancer immunotherapy. This review study covers cytokines, adoptive (autologous and allogenic) NK immunotherapy, stimulatory and regulatory functions, and cell-free derivatives from NK cells. The future path of NK-Exo cytotoxicity and anti-tumor activity with considering non-caspase-independent/dependent apoptosis and Fas/FasL pathway in cancer immunotherapy. Finally, the significance and implication of NK-Exo therapeutics through combination therapy and the development of emerging approaches for the purification and delivery NK-Exo to severe immune and tumor cells and tissues were discussed in detail.
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Affiliation(s)
- Zahra Hatami
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Zahra Sadat Hashemi
- ATMP Department, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran.
| | - Mohamad Eftekhary
- Department of Medical Biotechnology, Faculty of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran
| | - Ala Amiri
- Department of Biotechnology, Faculty of Biological Sciences, Alzahra University, Tehran, Iran
| | - Vahid Karpisheh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Kaveh Nasrollahi
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Reza Jafari
- Cellular and Molecular Research Center, Cellular and Molecular Medicine Institute, Urmia University of Medical Sciences, Urmia, Iran.
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8
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Zhao X, Lin M, Huang X. Current status and future perspective of natural killer cell therapy for cancer. MEDICAL REVIEW (2021) 2023; 3:305-320. [PMID: 38235405 PMCID: PMC10790210 DOI: 10.1515/mr-2023-0031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 09/23/2023] [Indexed: 01/19/2024]
Abstract
Natural killer (NK) cells possess innate abilities to effectively eliminate cancer cells. However, because of difficulties of proliferation and easy to be induced dysfunction in the setting of cancer post NK cell therapy, the curative effect of NK cell infusion has been constrained and not been widely applicable in clinical practice. The rapid development of biotechnology has promoted the development of NK cell therapy for cancer treatment. In this review, we will provide a comprehensive analysis of the current status and future prospects of NK cell therapy for cancer, focusing on the biological characteristics of NK cells, as well as strategies to enhance their targeting capabilities and overcome tumor immune suppression within the microenvironment.
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Affiliation(s)
- Xiangyu Zhao
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Minghao Lin
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Xiaojun Huang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, National Clinical Research Center for Hematologic Disease, Beijing, China
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Gao J, Zou Y, Wu XJ, Xu Y, Zhu XQ, Zheng WB. Differential miRNA expression profiles in the bone marrow of Beagle dogs at different stages of Toxocara canis infection. BMC Genomics 2022; 23:847. [PMID: 36544082 PMCID: PMC9773451 DOI: 10.1186/s12864-022-09081-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Toxocara canis is distributed worldwide, posing a serious threat to both human and dog health; however, the pathogenesis of T. canis infection in dogs remains unclear. In this study, the changes in microRNA (miRNA) expression profiles in the bone marrow of Beagle dogs were investigated by RNA-seq and bioinformatics analysis. RESULTS Thirty-nine differentially expressed (DE) miRNAs (DEmiRNAs) were identified in this study. Among these, four DEmiRNAs were identified at 24 h post-infection (hpi) and all were up-regulated; eight DEmiRNAs were identified with two up-regulated miRNAs and six down-regulated miRNAs at 96 hpi; 27 DEmiRNAs were identified with 13 up-regulated miRNAs and 14 down-regulated miRNAs at 36 days post-infection (dpi). Among these DEmiRNAs, cfa-miR-193b participates in the immune response by regulating the target gene cd22 at 24 hpi. The novel_328 could participate in the inflammatory and immune responses through regulating the target genes tgfb1 and tespa1, enhancing the immune response of the host and inhibiting the infection of T. canis at 96 hpi. In addition, cfa-miR-331 and novel_129 were associated with immune response and self-protection mechanisms at 36 dpi. 20 pathways were significantly enriched by KEGG pathway analysis, most of which were related to inflammatory response, immune response and cell differentiation, such as Cell adhesion molecules (CAMs), ECM-receptor interaction and Focal adhesion. CONCLUSIONS These findings suggested that miRNAs of Beagle dog bone marrow play important roles in the pathogenesis of T. canis infection in dogs and provided useful resources to better understand the interaction between T. canis and the hosts.
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Affiliation(s)
- Jin Gao
- grid.412545.30000 0004 1798 1300Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801 Shanxi Province China
| | - Yang Zou
- grid.454892.60000 0001 0018 8988State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046 Gansu Province China
| | - Xiao-Jing Wu
- grid.412545.30000 0004 1798 1300Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801 Shanxi Province China
| | - Yue Xu
- grid.412545.30000 0004 1798 1300Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801 Shanxi Province China
| | - Xing-Quan Zhu
- grid.412545.30000 0004 1798 1300Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801 Shanxi Province China ,grid.410696.c0000 0004 1761 2898Key Laboratory of Veterinary Public Health of Higher Education of Yunnan Province, College of Veterinary Medicine, Yunnan Agricultural University, Kunming, 650201 Yunnan Province China
| | - Wen-Bin Zheng
- grid.412545.30000 0004 1798 1300Laboratory of Parasitic Diseases, College of Veterinary Medicine, Shanxi Agricultural University, Taigu, 030801 Shanxi Province China
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Barnes SA, Audsley KM, Newnes HV, Fernandez S, de Jong E, Waithman J, Foley B. Type I interferon subtypes differentially activate the anti-leukaemic function of natural killer cells. Front Immunol 2022; 13:1050718. [PMID: 36505400 PMCID: PMC9731670 DOI: 10.3389/fimmu.2022.1050718] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 11/04/2022] [Indexed: 11/25/2022] Open
Abstract
Natural killer (NK) cells have an intrinsic ability to detect and eliminate leukaemic cells. Cellular therapies using cytokine-activated NK cells have emerged as promising treatments for patients with advanced leukaemia. However, not all patients respond to current NK cell therapies, and thus improvements in efficacy are required. Type I interferons (IFN-I) are a family of potent immunomodulatory cytokines with a known ability to modulate NK cell responses against cancer. Although the human IFN-I family comprises 16 distinct subtypes, only IFNα2 has been widely explored as an anti-cancer agent. Here, we investigated the individual immunomodulatory effects each IFNα subtype and IFNβ had on NK cell functionality to determine whether a particular subtype confers enhanced effector activity against leukaemia. Importantly, IFNα14 and IFNβ were identified as superior activators of NK cell effector function in vitro. To test the ability of these subtypes to enhance NK cell activity in vivo, IFN-I stimulation was overlaid onto a standard ex vivo expansion protocol to generate NK cells for adoptive cell therapy. Interestingly, infusion of NK cells pre-activated with IFNα14, but not IFNβ, significantly prolonged survival in a preclinical model of leukaemia compared to NK cells expanded without IFN-I. Collectively, these results highlight the diverse immunomodulatory potencies of individual IFN-I subtypes and support further investigation into the use of IFNα14 to favourably modulate NK cells against leukaemia.
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Affiliation(s)
- Samantha A. Barnes
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia,School of Biomedical Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Katherine M. Audsley
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia,School of Biomedical Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Hannah V. Newnes
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia,School of Biomedical Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Sonia Fernandez
- School of Biomedical Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Emma de Jong
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia
| | - Jason Waithman
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia,School of Biomedical Sciences, The University of Western Australia, Crawley, WA, Australia
| | - Bree Foley
- Telethon Kids Institute, The University of Western Australia, Nedlands, WA, Australia,*Correspondence: Bree Foley,
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11
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Crump LS, Kines KT, Richer JK, Lyons TR. Breast cancers co-opt normal mechanisms of tolerance to promote immune evasion and metastasis. Am J Physiol Cell Physiol 2022; 323:C1475-C1495. [PMID: 36189970 PMCID: PMC9662806 DOI: 10.1152/ajpcell.00189.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/22/2022] [Accepted: 09/27/2022] [Indexed: 11/22/2022]
Abstract
Normal developmental processes, such as those seen during embryonic development and postpartum mammary gland involution, can be reactivated by cancer cells to promote immune suppression, tumor growth, and metastatic spread. In mammalian embryos, paternal-derived antigens are at risk of being recognized as foreign by the maternal immune system. Suppression of the maternal immune response toward the fetus, which is mediated in part by the trophoblast, is critical to ensure embryonic survival and development. The postpartum mammary microenvironment also exhibits immunosuppressive mechanisms accompanying the massive cell death and tissue remodeling that occurs during mammary gland involution. These normal immunosuppressive mechanisms are paralleled during malignant transformation, where tumors can develop neoantigens that may be recognized as foreign by the immune system. To circumvent this, tumors can dedifferentiate and co-opt immune-suppressive mechanisms normally utilized during fetal tolerance and postpartum mammary involution. In this review, we discuss those similarities and how they can inform our understanding of cancer progression and metastasis.
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Affiliation(s)
- Lyndsey S Crump
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Kelsey T Kines
- Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado
| | - Jennifer K Richer
- Department of Pathology, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, Aurora, Colorado
| | - Traci R Lyons
- Division of Medical Oncology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- Young Women's Breast Cancer Translational Program, University of Colorado Anschutz Medical Campus, Aurora, Colorado
- University of Colorado Cancer Center, Aurora, Colorado
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12
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Terrén I, Orrantia A, Astarloa-Pando G, Amarilla-Irusta A, Zenarruzabeitia O, Borrego F. Cytokine-Induced Memory-Like NK Cells: From the Basics to Clinical Applications. Front Immunol 2022; 13:884648. [PMID: 35603208 PMCID: PMC9114299 DOI: 10.3389/fimmu.2022.884648] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/11/2022] [Indexed: 12/12/2022] Open
Abstract
Natural killer (NK) cells are lymphocytes with a key role in the defense against viral infections and tumor cells. Although NK cells are classified as innate lymphoid cells (ILCs), under certain circumstances they exhibit adaptive and memory-like features. The latter may be achieved, among others, by a brief stimulation with interleukin (IL)-12, IL-15 and IL-18. These cytokine-induced memory-like (CIML) NK cells resemble the trained immunity observed in myeloid cells. CIML NK cells undergo transcriptional, epigenetic and metabolic reprogramming that, along with changes in the expression of cell surface receptors and components of cytotoxic granules, are responsible for their enhanced effector functions after a resting period. In addition, these memory-like NK cells persist for a long time, which make them a good candidate for cancer immunotherapy. Currently, several clinical trials are testing CIML NK cells infusions to treat tumors, mostly hematological malignancies. In relapse/refractory acute myeloid leukemia (AML), the adoptive transfer of CIML NK cells is safe and complete clinical remissions have been observed. In our review, we sought to summarize the current knowledge about the generation and molecular basis of NK cell memory-like responses and the up-to-date results from clinical trials with CIML NK cells.
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Affiliation(s)
- Iñigo Terrén
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Ane Orrantia
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | | | | | - Olatz Zenarruzabeitia
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Francisco Borrego
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.,Ikerbasque, Basque Foundation for Science, Bilbao, Spain
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13
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Jiang J, Zhang F, Wan Y, Fang K, Yan ZD, Ren XL, Zhang R. Semaphorins as Potential Immune Therapeutic Targets for Cancer. Front Oncol 2022; 12:793805. [PMID: 35155237 PMCID: PMC8830438 DOI: 10.3389/fonc.2022.793805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/04/2022] [Indexed: 11/28/2022] Open
Abstract
Semaphorins are a large class of secreted or membrane-bound molecules. It has been reported that semaphorins play important roles in regulating several hallmarks of cancer, including angiogenesis, metastasis, and immune evasion. Semaphorins and their receptors are widely expressed on tumor cells and immune cells. However, the biological role of semaphorins in tumor immune microenvironment is intricate. The dysregulation of semaphorins influences the recruitment and infiltration of immune cells, leading to abnormal anti-tumor effect. Although the underlying mechanisms of semaphorins on regulating tumor-infiltrating immune cell activation and functions are not fully understood, semaphorins can notably be promising immunotherapy targets for cancer.
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Affiliation(s)
- Jun Jiang
- Department of Health Service, Fourth Military Medical University, Xi'an, China.,State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
| | - Fang Zhang
- Department of Respiratory Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yi Wan
- Department of Health Service, Fourth Military Medical University, Xi'an, China
| | - Ke Fang
- Department of Health Service, Fourth Military Medical University, Xi'an, China
| | - Ze-Dong Yan
- Department of Biomedical Engineering, Fourth Military Medical University, Xi'an, China
| | - Xin-Ling Ren
- Department of Respiratory Medicine, Xijing Hospital, Fourth Military Medical University, Xi'an, China.,Department of Pulmonary Medicine, Shenzhen General Hospital, Shenzhen University, Shenzhen, China
| | - Rui Zhang
- State Key Laboratory of Cancer Biology, Department of Immunology, Fourth Military Medical University, Xi'an, China
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14
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Tarannum M, Romee R. Cytokine-induced memory-like natural killer cells for cancer immunotherapy. Stem Cell Res Ther 2021; 12:592. [PMID: 34863287 PMCID: PMC8642969 DOI: 10.1186/s13287-021-02655-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 09/25/2021] [Indexed: 12/12/2022] Open
Abstract
Natural killer cells are an important part of the innate immune system mediating robust responses to virus-infected and malignant cells without needing prior antigen priming. NK cells have always been thought to be short-lived and with no antigen specificity; however, recent data support the presence of NK cell memory including in the hapten-specific contact hypersensitivity model and in certain viral infections. The memory-like features can also be generated by short-term activation of both murine and human NK cells with cytokine combination of IL-12, IL-15 and IL-18, imparting increased longevity and enhanced anticancer functionality. Preclinical studies and very early clinical trials demonstrate safety and very promising clinical activity of these cytokine-induced memory-like (CIML) NK cells, making them an attractive cell type for developing novel adoptive cellular immunotherapy strategies. Furthermore, efforts are on to arm them with novel gene constructs for enhanced tumor targeting and function.
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Affiliation(s)
- Mubin Tarannum
- Division of Cellular Therapy and Stem Cell Transplantation, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Ave, Boston, MA, 02215, USA
| | - Rizwan Romee
- Division of Cellular Therapy and Stem Cell Transplantation, Dana Farber Cancer Institute, Harvard Medical School, 450 Brookline Ave, Boston, MA, 02215, USA.
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15
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Wang XX, Wu LH, Ai L, Pan W, Ren JY, Zhang Q, Zhang HM. Construction of an HCC recurrence model based on the investigation of immune-related lncRNAs and related mechanisms. MOLECULAR THERAPY - NUCLEIC ACIDS 2021; 26:1387-1400. [PMID: 34900397 PMCID: PMC8626812 DOI: 10.1016/j.omtn.2021.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 10/10/2021] [Accepted: 11/03/2021] [Indexed: 01/27/2023]
Abstract
Long noncoding RNAs (lncRNAs) are emerging as critical regulators of gene expression and play fundamental roles in immune regulation. Growing evidence suggests that immune-related genes and lncRNAs can serve as markers to predict the prognosis of patients with cancers, including hepatocellular carcinoma (HCC). This study aimed to contract an immune-related lncRNA (IR-lncRNA) signature for prospective assessment to predict early recurrence of HCC. A total of 319 HCC samples under radical resection were randomly divided into a training cohort (161 samples) and a testing cohort (158 samples). In the training dataset, univariate, lasso, and multivariate Cox regression analyses identified a 9-IR-lncRNA signature closely related to disease-free survival. Kaplan-Meier analysis, principal component analysis, gene set enrichment analysis, and nomogram were used to evaluate the risk model. The results were further confirmed in the testing cohort. Furthermore, we constructed a competitive endogenous RNA regulatory network. The results of the present study indicated that this 9-IR-lncRNA signature has important clinical implications for improving predictive outcomes and guiding individualized treatment in HCC patients. These IR-lncRNAs and regulated genes may be potential biomarkers associated with the prognosis of HCC.
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Affiliation(s)
- Xiang-Xu Wang
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Li-Hong Wu
- Xijing 986 Hospital Department, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Liping Ai
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Wei Pan
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jing-Yi Ren
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Qiong Zhang
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Hong-Mei Zhang
- Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
- Corresponding author: Hong-Mei Zhang, Department of Clinical Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
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16
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Pan Q, Luo G, Qu J, Chen S, Zhang X, Zhao N, Ding J, Yang H, Li M, Li L, Cheng Y, Li X, Xie Q, Li Q, Zhou X, Zou H, Fan S, Zou L, Liu W, Deng G, Cai S, Boyer JL, Chai J. A homozygous R148W mutation in Semaphorin 7A causes progressive familial intrahepatic cholestasis. EMBO Mol Med 2021; 13:e14563. [PMID: 34585848 PMCID: PMC8573601 DOI: 10.15252/emmm.202114563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 09/03/2021] [Accepted: 09/07/2021] [Indexed: 12/15/2022] Open
Abstract
Semaphorin 7A (SEMA7A) is a membrane-bound protein that involves axon growth and other biological processes. SEMA7A mutations are associated with vertebral fracture and Kallmann syndrome. Here, we report a case with a mutation in SEMA7A that displays familial cholestasis. WGS reveals a SEMA7AR148W homozygous mutation in a female child with elevated levels of serum ALT, AST, and total bile acid (TBA) of unknown etiology. This patient also carried a SLC10A1S267F allele, but Slc10a1S267F homozygous mice exhibited normal liver function. Similar to the child, Sema7aR145W homozygous mice displayed elevated levels of serum ALT, AST, and TBA. Remarkably, liver histology and LC-MS/MS analyses exhibited hepatocyte hydropic degeneration and increased liver bile acid (BA) levels in Sema7aR145W homozygous mice. Further mechanistic studies demonstrated that Sema7aR145W mutation reduced the expression of canalicular membrane BA transporters, bile salt export pump (Bsep), and multidrug resistance-associated protein-2 (Mrp2), causing intrahepatic cholestasis in mice. Administration with ursodeoxycholic acid and a dietary supplement glutathione improved liver function in the child. Therefore, Sema7aR145W homozygous mutation causes intrahepatic cholestasis by reducing hepatic Bsep and Mrp2 expression.
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Affiliation(s)
- Qiong Pan
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Gang Luo
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Jiaquan Qu
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Sheng Chen
- Department of PediatricsSouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Xiaoxun Zhang
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Nan Zhao
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Jingjing Ding
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Hong Yang
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Mingqiao Li
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Ling Li
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Ying Cheng
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Xuan Li
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Qiaoling Xie
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Qiao Li
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Xueqian Zhou
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Huiling Zou
- Department of PediatricsChangsha Hospital for Maternal & Child Health CareChangshaChina
| | - Shijun Fan
- Medical Research CenterSouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Lingyun Zou
- Bao'an Maternal and Child Health HospitalJinan UniversityShenzhenChina
| | - Wei Liu
- Institute of ImmunologyThird Military Medical University (Army Medical University)ChongqingChina
| | - Guohong Deng
- Department of Infectious DiseasesSouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
| | - Shi‐Ying Cai
- Department of Internal Medicine and Liver CenterYale University School of MedicineNew HavenCTUSA
| | - James L Boyer
- Department of Internal Medicine and Liver CenterYale University School of MedicineNew HavenCTUSA
| | - Jin Chai
- Cholestatic Liver Diseases CenterDepartment of GastroenterologySouthwest HospitalThird Military Medical University (Army Medical University)ChongqingChina
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17
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Gunduz M, Ataca Atilla P, Atilla E. New Orders to an Old Soldier: Optimizing NK Cells for Adoptive Immunotherapy in Hematology. Biomedicines 2021; 9:biomedicines9091201. [PMID: 34572387 PMCID: PMC8466804 DOI: 10.3390/biomedicines9091201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 08/28/2021] [Accepted: 08/30/2021] [Indexed: 12/18/2022] Open
Abstract
NK (Natural Killer) cell-mediated adoptive immunotherapy has gained attention in hematology due to the progressing knowledge of NK cell receptor structure, biology and function. Today, challenges related to NK cell expansion and persistence in vivo as well as low cytotoxicity have been mostly overcome by pioneering trials that focused on harnessing NK cell functions. Recent technological advancements in gene delivery, gene editing and chimeric antigen receptors (CARs) have made it possible to generate genetically modified NK cells that enhance the anti-tumor efficacy and represent suitable “off-the-shelf” products with fewer side effects. In this review, we highlight recent advances in NK cell biology along with current approaches for potentiating NK cell proliferation and activity, redirecting NK cells using CARs and optimizing the procedure to manufacture clinical-grade NK and CAR NK cells for adoptive immunotherapy.
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Affiliation(s)
- Mehmet Gunduz
- Department of Hematology, Biruni University, Istanbul 34010, Turkey;
| | - Pinar Ataca Atilla
- Interdisciplinary Stem Cells and Regenerative Medicine Ph.D Program, Stem Cell Institute, Ankara University, Ankara 06520, Turkey;
| | - Erden Atilla
- Department of Hematology, Mersin State Hospital, Korukent District, 96015 St., Toroslar 33240, Turkey
- Correspondence: ; Tel.: +9-05-058-213-131
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18
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Abstract
Nonresolving inflammation, a hallmark of sepsis and/or multi-organ failure, still poses a challenge in medicine. The mortality rate is enormous, and so far no adequate curative therapy is available. Here we identify a previously unrecognized role of the neuronal guidance protein semaphorin 7A in the transition to resolution processes in severe systematic inflammation such as sepsis. Endogenous mediators regulating acute inflammatory responses in both the induction and resolution phases of inflammatory processes are pivotal in host defense and tissue homeostasis. Recent studies have identified neuronal guidance proteins characterized in axonal development that display immunomodulatory functions. Here, we identify the neuroimmune guidance cue Semaphorin 7A (Sema7A), which appears to link macrophage (MΦ) metabolic remodeling to inflammation resolution. Sema7A orchestrated MΦ chemotaxis and chemokinesis, activated MΦ differentiation and polarization toward the proresolving M2 phenotype, and promoted leukocyte clearance. Peritoneal MΦSema7A−/− displayed metabolic reprogramming, characterized by reductions in fatty acid oxidation and oxidative phosphorylation, increases in glycolysis and the pentose phosphate pathway, and truncation of the tricarboxylic acid cycle, which resulted in increased levels of the intermediates succinate and fumarate. The low accumulation of citrate in MΦSema7A−/− correlated with the decreased synthesis of prostaglandins, leading to a reduced impact on lipid-mediator class switching and the generation of specialized pro resolving lipid mediators. Signaling network analysis indicated that Sema7A induced the metabolic reprogramming of MΦ by activating the mTOR- and AKT2-signaling pathways. Administration of Sema7ASL4cd orchestrated the resolution response to tissue homeostasis by shortening the resolution interval, promoting tissue protection in murine peritonitis, and enhancing survival in polymicrobial sepsis.
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19
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Yuan Z, Wei Y, Chen X, He S, Cai K, Zhong M, Huang H, Tong X, Liu Z, Yang X. Anti-JMH alloantibody in inherited JMH-negative patients leads to immunogenic destruction of JMH-positive RBCs. Clin Exp Immunol 2021; 205:182-197. [PMID: 34021913 DOI: 10.1111/cei.13622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 04/25/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023] Open
Abstract
The clinical significance of the specific anti-John Milton Hagen (JMH) alloantibody in inherited JMH-negative patients remains unclear. During clinical blood transfusion, it is often classified as an anti-JMH autoantibody in acquired JMH-negative patients, which might further lead to the occurrence of haemolysis events. In this study, we found that the proportion of inherited JMH-negative people in the Guangzhou population was 0.41%, based on the study of 243 blood samples by flow cytometry. Gene sequencing analysis revealed two novel variants located in exon 11 (c.1348G>A, p.Ala449Thr) and exon 14 (c.1989G>T, p.Leu663Phe). Specific antigen presentation showed that JMH-positive RBCs (red blood cells) could be internalized by SEMA7A-/- dendritic cells (DCs) and that SEMA7A-/- DCs activated by the semaphorin 7a (Sema7a) protein or JMH-positive erythrocytes further induced activation of CD4+ T cells to secrete interferon (IFN)-γ. Transfusion of JMH-positive RBCs could lead to the production of the specific anti-JMH alloantibody in Sema7a knock-out (KO) C57 mice. After erythrocyte sensitization, complement C3 was specifically fixed, causing the destruction of JMH-positive erythrocytes. The anti-JMH alloantibody caused immunological destruction of JMH-positive erythrocytes and promoted the clearance of JMH-positive RBCs. We should be cautious when making conclusions about the clinical significance of the anti-JMH alloantibody.
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Affiliation(s)
- Zhaohu Yuan
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Yaming Wei
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Xiaojie Chen
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Shufei He
- Department of Blood Transfusion, Third People's Hospital of Huizhou, Huizhou, Guangdong, China
| | - Kui Cai
- Department of Blood Transfusion, Foshan First People's Hospital, Foshan, Guangdong, China
| | - Minglu Zhong
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Huiying Huang
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Xinxin Tong
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Zhen Liu
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
| | - Xuexin Yang
- Department of Blood Transfusion, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, Guangdong, China.,Guangdong Engineering Research Center of Precise Transfusion, Guangzhou, Guangdong, China
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20
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Terrén I, Orrantia A, Mosteiro A, Vitallé J, Zenarruzabeitia O, Borrego F. Metabolic changes of Interleukin-12/15/18-stimulated human NK cells. Sci Rep 2021; 11:6472. [PMID: 33742092 PMCID: PMC7979769 DOI: 10.1038/s41598-021-85960-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023] Open
Abstract
Natural Killer (NK) cells acquire memory-like properties following a brief stimulation with IL-12, IL-15 and IL-18. These IL-12/15/18-preactivated NK cells, also known as cytokine-induced memory-like (CIML) NK cells, have been revealed as a powerful tool in cancer immunotherapy due to their persistence in the host and their increased effector functions. Several studies have shown that NK cells modulate their metabolism in response to cytokine-stimulation and other stimuli, suggesting that there is a link between metabolism and cellular functions. In this paper, we have analyzed metabolic changes associated to IL-12/15/18-stimulation and the relevance of glycolytic pathway for NK cell effector functions. We have found CIML NK cells are able to retain a metabolic profile shifted towards glycolysis seven days after cytokine withdrawal. Furthermore, we found that treatment with 2-DG differently affects distinct NK cell effector functions and is stimuli-dependent. These findings may have implications in the design of NK cell-based cancer immunotherapies.
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Affiliation(s)
- Iñigo Terrén
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Ane Orrantia
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Alba Mosteiro
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Joana Vitallé
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain
| | - Olatz Zenarruzabeitia
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.
| | - Francisco Borrego
- Immunopathology Group, Biocruces Bizkaia Health Research Institute, Barakaldo, Spain.
- Basque Foundation for Science, Bilbao, Spain.
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21
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Pinheiro PF, Justino GC, Marques MM. NKp30 - A prospective target for new cancer immunotherapy strategies. Br J Pharmacol 2020; 177:4563-4580. [PMID: 32737988 PMCID: PMC7520444 DOI: 10.1111/bph.15222] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 06/23/2020] [Accepted: 07/27/2020] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells are an important arm of the innate immune system. They constitutively express the NKp30 receptor. NKp30-mediated responses are triggered by the binding of specific ligands e.g. tumour cell-derived B7-H6 and involve the secretion of cytotoxic mediators including TNF-α, IFN-γ, perforins and granzymes. The latter two constitute a target cell-directed response that is critical in the process of immunosurveillance. The structure of NKp30 is presented, focusing on the ligand-binding site, on the ligand-induced structural changes and on the experimental data available correlating structure and binding affinity. The translation of NKp30 structural changes to disease progression is also reviewed. NKp30 role in immunotherapy has been explored in chimeric antigen receptor T-cell (CAR-T) therapy. However, antibodies or small ligands targeting NKp30 have not yet been developed. The data reviewed herein unveil the key structural aspects that must be considered for drug design in order to develop novel immunotherapy approaches.
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Affiliation(s)
- Pedro F. Pinheiro
- Centro de Química Estrutural, Instituto Superior TécnicoUniversidade de LisboaLisbonPortugal
| | - Gonçalo C. Justino
- Centro de Química Estrutural, Instituto Superior TécnicoUniversidade de LisboaLisbonPortugal
| | - M. Matilde Marques
- Centro de Química Estrutural, Instituto Superior TécnicoUniversidade de LisboaLisbonPortugal
- Departamento de Engenharia Química, Instituto Superior TécnicoUniversidade de LisboaLisbonPortugal
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Ram DR, Arias CF, Kroll K, Hueber B, Manickam C, Jones RA, Smith ST, Shah SV, Varner VH, Reeves RK. Characterization of Rhesus Macaque Liver-Resident CD49a + NK Cells During Retrovirus Infections. Front Immunol 2020; 11:1676. [PMID: 32849583 PMCID: PMC7411078 DOI: 10.3389/fimmu.2020.01676] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/23/2020] [Indexed: 12/22/2022] Open
Abstract
CD49a+ tissue resident NK cells have been implicated in memory-like NK cell responses, but while this population is well-characterized in mice and in humans, they are poorly described in non-human primates (NHP) which are particularly critical for modeling human viral infections. Others and we have shown that memory-like NK cells are enriched in the liver and because of the importance of NHP in modeling HIV infection, understanding the immunobiology of CD49a+ NK cells in SIV-infected rhesus macaques is critical to explore the role of this cell type in retroviral infections. In this study mononuclear cells isolated from livers, spleens, and peripheral whole blood were analyzed in acutely and chronically lentivirus-infected and experimentally-naïve Indian rhesus macaques (RM). NK cells were then identified as CD45+CD14−CD20−CD3−NKG2A/C+ cells and characterized using multiparametric flow-cytometry. Our data show that in RM, CD49a+ NK cells increase in the liver following retroviral infections [median = 5.2% (naïve) vs. median = 9.48% (SIV+) or median = 16.8% (SHIV+)]. In contrast, there is little change in CD49a+ NK frequencies in whole blood or spleens of matched animals. In agreement with human and murine data we also observed that CD49a+ NK cells were predominantly Eomeslow T-betlow, though these frequencies are elevated in infected animal cohorts. Functionally, our data suggests that infection alters TNF-α, IFN-γ, and CD107a expression in stimulated CD49a+ NK cells. Specifically, our analyses found a decrease in CD49a+ CD107a+ TNFα+ IFNγ− NK cells, with a simultaneous increase in CD49a+ CD107a+ TNFα− IFNγ+ NK cells and the non-responsive CD49a+ CD107a− TNFα− IFNγ− NK cell population following infection, suggesting both pathogenic and inflammatory changes in the NK cell functional profile. Our data also identified significant global differences in polyfunctionality between CD49a+ NK cells in the naïve and chronic (SHIV+) cohorts. Our work provides the first characterization of CD49a+ NK cells in tissues from RM. The significant similarities between CD49a+ NK cells from RM and what is reported from human samples justifies the importance of studying CD49a+ NK cells in this species to support preclinical animal model research.
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Affiliation(s)
- Daniel R Ram
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | | | - Kyle Kroll
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Brady Hueber
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Cordelia Manickam
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Rhianna A Jones
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Scott T Smith
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Spandan V Shah
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Valerie H Varner
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - R Keith Reeves
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.,Ragon Institute of Massachusetts General Hospital, MIT, and Harvard, Cambridge, MA, United States
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Tan HX, Yang SL, Li MQ, Wang HY. Autophagy suppression of trophoblast cells induces pregnancy loss by activating decidual NK cytotoxicity and inhibiting trophoblast invasion. Cell Commun Signal 2020; 18:73. [PMID: 32398034 PMCID: PMC7218578 DOI: 10.1186/s12964-020-00579-w] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 04/13/2020] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The crosstalk between trophoblast cells and decidual NK cells plays an important role in the establishment and maintenance of normal pregnancy. Recent studies reported that autophagy can induce immune tolerance at the maternal fetal interface, while the mechanism remains unclear. METHODS Autophagy levels in the villi of normal and recurrent spontaneous abortion (RSA) patients were detected by transmission electron microscopy. After co-cultured with trophoblast cells pretreated with 3-MA or rapamycin, NK cells were collected and the expression of killer receptors was detected by flow cytometry (FCM). The invasiveness of trophoblasts was tested by Cell invasion assay. RESULTS Compared with elective pregnancy termination patients, the level of autophagy in the villi of RSA patients was significantly decreased. Inducing the autophagy level in trophoblast cells with rapamycin could significantly inhibit the cytotoxicity of NK cells in the co-culture system, and supplement of IGF-2 could rectify this effect. Meanwhile, autophagy suppression of trophoblasts reduced the level of Paternally Expressed Gene 10 (PEG10), leading to the impairment of trophoblast cell invasion. In addition, NK cells educated by autophagy-inhibited trophoblasts further decreased the proliferation and invasiveness of trophoblasts. In pregnant mice model, injection with 3-MA promoted the cytotoxicity of uterine NK cells, and increased the embryo absorption rate. CONCLUSION Autophagy suppression of trophoblasts increase the cytotoxicity of NK cells and damage the trophoblasts invasion possibly by targeting IGF-2 and PEG10, respectively, which ultimately leads to miscarriage. Video Abstarct.
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Affiliation(s)
- Hai-Xia Tan
- Department of Gynecology of Integrated Traditional Chinese and Western Medicine, Hospital of Obstetrics and Gynecology, Fudan University, Shen Yang Road 128, Shanghai, 200090, People's Republic of China
| | - Shao-Liang Yang
- Department of Gynecology of Integrated Traditional Chinese and Western Medicine, Hospital of Obstetrics and Gynecology, Fudan University, Shen Yang Road 128, Shanghai, 200090, People's Republic of China
| | - Ming-Qing Li
- NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Pingliang Road, Shanghai, 200080, People's Republic of China.
- Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, 200080, People's Republic of China.
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200080, People's Republic of China.
| | - Hai-Yan Wang
- Department of Gynecology of Integrated Traditional Chinese and Western Medicine, Hospital of Obstetrics and Gynecology, Fudan University, Shen Yang Road 128, Shanghai, 200090, People's Republic of China.
- Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200080, People's Republic of China.
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Lucar O, Reeves RK, Jost S. A Natural Impact: NK Cells at the Intersection of Cancer and HIV Disease. Front Immunol 2019; 10:1850. [PMID: 31474977 PMCID: PMC6705184 DOI: 10.3389/fimmu.2019.01850] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Accepted: 07/23/2019] [Indexed: 12/24/2022] Open
Abstract
Despite efficient suppression of plasma viremia in people living with HIV (PLWH) on cART, evidence of HIV-induced immunosuppression remains, and normally benign and opportunistic pathogens become major sources of co-morbidities, including virus-induced cancers. In fact, cancer remains a primary cause of death even in virally suppressed PLWH. Natural killer (NK) cells provide rapid early responses to HIV infection, contribute substantially to disease modulation and vaccine protection, and are also major therapeutic targets for cancer immunotherapy. However, much like other lymphocyte populations, recent burgeoning evidence suggests that in chronic conditions like HIV, NK cells can become functionally exhausted with impaired cytotoxic function, altered cytokine production and impaired antibody-dependent cell-mediated cytotoxicity. Recent work suggests functional anergy is likely due to low-level ongoing virus replication, increased inflammatory cytokines, or increased presence of MHClow target cells. Indeed, HIV-induced loss of NK cell-mediated control of lytic EBV infection has been specifically shown to cause lymphoma and also increases replication of CMV. In this review, we will discuss current understanding of NK cell modulation of HIV disease, reciprocal exhaustion of NK cells, and how this may impact increased cancer incidences and prospects for NK cell-targeted immunotherapies. Finally, we will review the most recent evidence supporting adaptive functions of NK cells and highlight the potential of adaptive NK cells for cancer immunotherapy.
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Affiliation(s)
- Olivier Lucar
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - R Keith Reeves
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States.,Ragon Institute of Massachusetts General Hospital, MIT, and Harvard, Cambridge, MA, United States
| | - Stephanie Jost
- Center for Virology and Vaccine Research, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
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Simian Immunodeficiency Virus Infection Modulates CD94 + (KLRD1 +) NK Cells in Rhesus Macaques. J Virol 2019; 93:JVI.00731-19. [PMID: 31167916 DOI: 10.1128/jvi.00731-19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 06/03/2019] [Indexed: 02/08/2023] Open
Abstract
Recently, we and others have shown that natural killer (NK) cells exhibit memory-like recall responses against cytomegalovirus (CMV) and human immunodeficiency/virus simian immunodeficiency virus (HIV/SIV) infections. Although the mechanism(s) have not been fully delineated, several groups have shown that the activating receptor NKG2C is elevated on NK cells in the context of rhesus CMV (rhCMV) or human CMV (hCMV) infections. CD94, which heterodimerizes with NKG2C is also linked to adaptive NK cell responses. Because nonhuman primates (NHP) play a crucial role in modeling HIV (SIV) infections, it is crucial to be able to assess and characterize the NKG2 family in NHP. Unfortunately, it is not possible to detect CD94 using commercially available antibodies in NHP. Our work, a first for NHP, has focused on developing RNA flow cytometry using mRNA transcripts as proxies distinguishing NKG2C from NKG2A. We have expanded the application of this technology and here we show the first characterization of CD94+ (KLRD1+) NK cells in NHP using multiparametric RNA flow cytometry. Peripheral blood mononuclear cells from naive and matched acutely (n = 4) or chronically (n = 12) SIV-infected rhesus macaques were analyzed by flow cytometry using commercially available antibodies, determining expression of transcripts for NKG2A, NKG2C, and CD94 (KLRC1, KLRC2, and KLRD1, respectively) on NK cells using RNA flow cytometry. Our data show that KLRC1+/- KLRC2+ KLRD1+ NK cells decrease following chronic, but not acute, infection with SIV. This approach will allow us to investigate the kinetics of infection and NK memory formation and will further improve our understanding of basic NK cell biology, especially in the context of SIV infection.IMPORTANCE Nonhuman primates play a crucial role in approximating human biology and many diseases that are difficult, if not impossible, to achieve in other animal models, notably HIV. Current advances in adaptive NK cell research positions us to address fundamental deficiencies in our fight against infection and disease at the earliest moments after infection or substantially earlier in disease progression. We show here that we can identify specific NK cell subpopulations that are modulated following chronic, but not acute, SIV infection. The ability to identify these subsets more precisely will inform therapeutic and vaccine strategies targeting an optimized NK cell response.
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