1
|
Ma K, Zheng ZR, Meng Y. Natural Killer Cells, as the Rising Point in Tissues, Are Forgotten in the Kidney. Biomolecules 2023; 13:biom13050748. [PMID: 37238618 DOI: 10.3390/biom13050748] [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: 03/03/2023] [Revised: 04/13/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
Natural killer (NK) cells are members of a rapidly expanding family of innate lymphoid cells (ILCs). NK cells play roles in the spleen, periphery, and in many tissues, such as the liver, uterine, lung, adipose, and so on. While the immunological functions of NK cells are well established in these organs, comparatively little is known about NK cells in the kidney. Our understanding of NK cells is rapidly rising, with more and more studies highlighting the functional significance of NK cells in different types of kidney diseases. Recent progress has been made in translating these findings to clinical diseases that occur in the kidney, with indications of subset-specific roles of NK cells in the kidney. For the development of targeted therapeutics to delay kidney disease progression, a better understanding of the NK cell with respect to the mechanisms of kidney diseases is necessary. In order to promote the targeted treatment ability of NK cells in clinical diseases, in this paper we demonstrate the roles that NK cells play in different organs, especially the functions of NK cells in the kidney.
Collapse
Affiliation(s)
- Ke Ma
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou 510000, China
| | - Zi-Run Zheng
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou 510000, China
| | - Yu Meng
- Department of Nephrology, The First Affiliated Hospital of Jinan University, Guangzhou 510000, China
- Department of Nephrology, The Fifth Affiliated Hospital of Jinan University, Heyuan 570000, China
| |
Collapse
|
2
|
Calabrese DR, Tsao T, Magnen M, Valet C, Gao Y, Mallavia B, Tian JJ, Aminian EA, Wang KM, Shemesh A, Punzalan EB, Sarma A, Calfee CS, Christenson SA, Langelier CR, Hays SR, Golden JA, Leard LE, Kleinhenz ME, Kolaitis NA, Shah R, Venado A, Lanier LL, Greenland JR, Sayah DM, Ardehali A, Kukreja J, Weigt SS, Belperio JA, Singer JP, Looney MR. NKG2D receptor activation drives primary graft dysfunction severity and poor lung transplantation outcomes. JCI Insight 2022; 7:e164603. [PMID: 36346670 PMCID: PMC9869973 DOI: 10.1172/jci.insight.164603] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
Clinical outcomes after lung transplantation, a life-saving therapy for patients with end-stage lung diseases, are limited by primary graft dysfunction (PGD). PGD is an early form of acute lung injury with no specific pharmacologic therapies. Here, we present a large multicenter study of plasma and bronchoalveolar lavage (BAL) samples collected on the first posttransplant day, a critical time for investigations of immune pathways related to PGD. We demonstrated that ligands for NKG2D receptors were increased in the BAL from participants who developed severe PGD and were associated with increased time to extubation, prolonged intensive care unit length of stay, and poor peak lung function. Neutrophil extracellular traps (NETs) were increased in PGD and correlated with BAL TNF-α and IFN-γ cytokines. Mechanistically, we found that airway epithelial cell NKG2D ligands were increased following hypoxic challenge. NK cell killing of hypoxic airway epithelial cells was abrogated with NKG2D receptor blockade, and TNF-α and IFN-γ provoked neutrophils to release NETs in culture. These data support an aberrant NK cell/neutrophil axis in human PGD pathogenesis. Early measurement of stress ligands and blockade of the NKG2D receptor hold promise for risk stratification and management of PGD.
Collapse
Affiliation(s)
- Daniel R. Calabrese
- Department of Medicine, San Francisco Veterans Affairs Medical Center, San Francisco, California, USA
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Tasha Tsao
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Mélia Magnen
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Colin Valet
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Ying Gao
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Beñat Mallavia
- Department of Medicine, UCSF, San Francisco, California, USA
| | | | | | - Kristin M. Wang
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Avishai Shemesh
- Department of Medicine, UCSF, San Francisco, California, USA
- Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
| | | | - Aartik Sarma
- Department of Medicine, UCSF, San Francisco, California, USA
| | | | | | | | - Steven R. Hays
- Department of Medicine, UCSF, San Francisco, California, USA
| | | | | | | | | | - Rupal Shah
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Aida Venado
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Lewis L. Lanier
- Parker Institute for Cancer Immunotherapy, San Francisco, California, USA
- Department of Microbiology and Immunology and
| | - John R. Greenland
- Department of Medicine, San Francisco Veterans Affairs Medical Center, San Francisco, California, USA
- Department of Medicine, UCSF, San Francisco, California, USA
| | - David M. Sayah
- Department of Medicine, UCLA, Los Angeles, California, USA
| | - Abbas Ardehali
- Department of Medicine, UCLA, Los Angeles, California, USA
| | | | | | | | | | - Mark R. Looney
- Department of Medicine, UCSF, San Francisco, California, USA
| |
Collapse
|
3
|
Hernández C, Toledo-Stuardo K, García-González P, Garrido-Tapia M, Kramm K, Rodríguez-Siza JA, Hermoso M, Ribeiro CH, Molina MC. Heat-killed Helicobacter pylori upregulates NKG2D ligands expression on gastric adenocarcinoma cells via Toll-like receptor 4. Helicobacter 2021; 26:e12812. [PMID: 33928707 DOI: 10.1111/hel.12812] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 03/14/2021] [Accepted: 04/03/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Natural killer (NK) cells are paramount for immunity against infectious agents and tumors. Their cytokine and cytolytic responses can be mediated by natural killer group 2, member D (NKG2D), an activating receptor whose ligands (NKG2DL) expression is induced in conditions of cell stress and malignant transformation. Since sustained expression of NKG2DL MICA is related to lower survival rates in gastric adenocarcinoma patients, and Helicobacter pylori infection contributes to tumorigenesis; we asked whether H. pylori stimulus could promote NKG2DL expression on human gastric adenocarcinoma cells. METHODS Heat-killed H. pylori (HKHP) was used to stimulate MKN45 cells before analysis of NKG2DL and Toll-like receptor 4 (TLR4) protein levels by flow cytometry and transcripts by real-time PCR. LPS from Rhodobacter sphaeroides and inhibitory peptide Pepinh MYD were used to inhibit TLR4/MyD88 signaling pathway to assess its participation on NKG2DL expression. NK cell-mediated cytotoxicity was measured by lactate dehydrogenase (LDH) and CD107a mobilization assays. RESULTS Stimulation of MKN45 cells with HKHP increased MICA, ULBP4 (another NKG2DL), and TLR4 at the protein and transcriptional levels. MICA, but not ULBP4 expression, was upregulated in a TLR4/MyD88-dependent manner. Furthermore, the presence of NKG2DL on the surface of HKHP-stimulated MKN45 cells enabled NK cell cytotoxic activation. CONCLUSIONS Our data indicate that induction of NKG2DL expression on gastric adenocarcinoma cells by H. pylori promotes an immune response that may ultimately contribute to either gastric tissue damage, as a consequence of persistent activation of immunity, or tumor immune evasion due to chronic NKG2DL expression.
Collapse
Affiliation(s)
- Carolina Hernández
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - Karen Toledo-Stuardo
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - Paulina García-González
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - Macarena Garrido-Tapia
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - Karina Kramm
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - José Alejandro Rodríguez-Siza
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - Marcela Hermoso
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - Carolina H Ribeiro
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile
| | - María Carmen Molina
- Faculty of Medicine, Immunology Program, Biomedical Sciences Institute (ICBM), University of Chile, Santiago de Chile, Chile.,Centro de InmunoBiotecnología, Immunology Program, Biomedical Sciences Institute (ICBM), Faculty of Medicine, University of Chile, Santiago de Chile, Chile
| |
Collapse
|
4
|
Calabrese DR, Aminian E, Mallavia B, Liu F, Cleary SJ, Aguilar OA, Wang P, Singer JP, Hays SR, Golden JA, Kukreja J, Dugger D, Nakamura M, Lanier LL, Looney MR, Greenland JR. Natural killer cells activated through NKG2D mediate lung ischemia-reperfusion injury. J Clin Invest 2021; 131:137047. [PMID: 33290276 PMCID: PMC7852842 DOI: 10.1172/jci137047] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 11/25/2020] [Indexed: 12/18/2022] Open
Abstract
Pulmonary ischemia-reperfusion injury (IRI) is a clinical syndrome of acute lung injury that occurs after lung transplantation or remote organ ischemia. IRI causes early mortality and has no effective therapies. While NK cells are innate lymphocytes capable of recognizing injured cells, their roles in acute lung injury are incompletely understood. Here, we demonstrated that NK cells were increased in frequency and cytotoxicity in 2 different IRI mouse models. We showed that NK cells trafficked to the lung tissue from peripheral reservoirs and were more mature within lung tissue. Acute lung ischemia-reperfusion injury was blunted in a NK cell-deficient mouse strain but restored with adoptive transfer of NK cells. Mechanistically, NK cell NKG2D receptor ligands were induced on lung endothelial and epithelial cells following IRI, and antibody-mediated NK cell depletion or NKG2D stress receptor blockade abrogated acute lung injury. In human lung tissue, NK cells were increased at sites of ischemia-reperfusion injury and activated NK cells were increased in prospectively collected human bronchoalveolar lavage in subjects with severe IRI. These data support a causal role for recipient peripheral NK cells in pulmonary IRI via NK cell NKG2D receptor ligation. Therapies targeting NK cells may hold promise in acute lung injury.
Collapse
Affiliation(s)
- Daniel R. Calabrese
- Department of Medicine, University of California, San Francisco, California
- Medical Service, Veterans Affairs Health Care System, San Francisco, California
| | - Emily Aminian
- Department of Medicine, University of California, San Francisco, California
| | - Benat Mallavia
- Department of Medicine, University of California, San Francisco, California
| | - Fengchun Liu
- Department of Medicine, University of California, San Francisco, California
| | - Simon J. Cleary
- Department of Medicine, University of California, San Francisco, California
| | - Oscar A. Aguilar
- Department of Microbiology and Immunology, University of California, San Francisco, California
- Parker Institute for Cancer Immunotherapy, San Francisco, California
| | - Ping Wang
- Department of Medicine, University of California, San Francisco, California
| | - Jonathan P. Singer
- Department of Medicine, University of California, San Francisco, California
| | - Steven R. Hays
- Department of Medicine, University of California, San Francisco, California
| | - Jeffrey A. Golden
- Department of Medicine, University of California, San Francisco, California
| | - Jasleen Kukreja
- Department of Surgery, University of California, San Francisco, California
| | - Daniel Dugger
- Medical Service, Veterans Affairs Health Care System, San Francisco, California
| | - Mary Nakamura
- Department of Medicine, University of California, San Francisco, California
- Medical Service, Veterans Affairs Health Care System, San Francisco, California
| | - Lewis L. Lanier
- Department of Microbiology and Immunology, University of California, San Francisco, California
- Parker Institute for Cancer Immunotherapy, San Francisco, California
| | - Mark R. Looney
- Department of Medicine, University of California, San Francisco, California
| | - John R. Greenland
- Department of Medicine, University of California, San Francisco, California
- Medical Service, Veterans Affairs Health Care System, San Francisco, California
| |
Collapse
|
5
|
Čepcová D, Kema IP, Sandovici M, Deelman LE, Šišková K, Klimas J, Vavrinec P, Vavrincová-Yaghi D. The protective effect of 1-methyltryptophan isomers in renal ischemia-reperfusion injury is not exclusively dependent on indolamine 2,3-dioxygenase inhibition. Biomed Pharmacother 2021; 135:111180. [PMID: 33433354 DOI: 10.1016/j.biopha.2020.111180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Revised: 12/14/2020] [Accepted: 12/26/2020] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND AND PURPOSE Indolamine 2,3-dioxygenase (IDO), an enzyme that catalyses the metabolism of tryptophan, may play a detrimental role in ischemia-reperfusion injury (IRI). IDO can be inhibited by 1-methyl-tryptophan, which exists in a D (D-MT) or L (L-MT) isomer. These forms show different pharmacological effects besides IDO inhibition. Therefore, we sought to investigate whether these isomers can play a protective role in renal IRI, either IDO-dependent or independent. EXPERIMENTAL APPROACH We studied the effect of both isomers in a rat renal IRI model with a focus on IDO-dependent and independent effects. KEY RESULTS Both MT isomers reduced creatinine and BUN levels, with D-MT having a faster onset of action but shorter duration and L-MT a slower onset but longer duration (24 h and 48 h vs 48 h and 96 h reperfusion time). Interestingly, this effect was not exclusively dependent on IDO inhibition, but rather from decreased TLR4 signalling, mimicking changes in renal function. Additionally, L-MT increased the overall survival of rats. Moreover, both MT isomers interfered with TGF-β signalling and epithelial-mesenchymal transition. In order to study the effect of isomers in all mechanisms involved in IRI, a series of in vitro experiments was performed. The isomers affected signalling pathways in NK cells and tubular epithelial cells, as well as in dendritic cells and T cells. CONCLUSION AND IMPLICATIONS This study shows that both MT isomers have a renoprotective effect after ischemia-reperfusion injury, mostly independent of IDO inhibition, involving mutually different mechanisms. We bring novel findings in the pharmacological properties and mechanism of action of MT isomers, which could become a novel therapeutic target of renal IRI.
Collapse
Affiliation(s)
- Diana Čepcová
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic.
| | - Ido P Kema
- Department of Laboratory Medicine, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
| | - Maria Sandovici
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
| | - Leo E Deelman
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands.
| | - Katarína Šišková
- Department of Cell and Molecular Biology of Drugs, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic.
| | - Ján Klimas
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic.
| | - Peter Vavrinec
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic.
| | - Diana Vavrincová-Yaghi
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, Slovak Republic.
| |
Collapse
|
6
|
Cantoni C, Granata S, Bruschi M, Spaggiari GM, Candiano G, Zaza G. Recent Advances in the Role of Natural Killer Cells in Acute Kidney Injury. Front Immunol 2020; 11:1484. [PMID: 32903887 PMCID: PMC7438947 DOI: 10.3389/fimmu.2020.01484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Accepted: 06/08/2020] [Indexed: 01/18/2023] Open
Abstract
Growing evidence is revealing a central role for natural killer (NK) cells, cytotoxic cells belonging to the broad family of innate lymphoid cells (ILCs), in acute and chronic forms of renal disease. NK cell effector functions include both the recognition and elimination of virus-infected and tumor cells and the capability of sensing pathogens through Toll-like receptor (TLR) engagement. Notably, they also display immune regulatory properties, exerted thanks to their ability to secrete cytokines/chemokines and to establish interactions with different innate and adaptive immune cells. Therefore, because of their multiple functions, NK cells may have a major pathogenic role in acute kidney injury (AKI), and a better understanding of the molecular mechanisms driving NK cell activation in AKI and their downstream interactions with intrinsic renal cells and infiltrating immune cells could help to identify new potential biomarkers and to select clinically valuable novel therapeutic targets. In this review, we discuss the current literature regarding the potential involvement of NK cells in AKI.
Collapse
Affiliation(s)
- Claudia Cantoni
- Laboratory of Clinical and Experimental Immunology, Integrated Department of Services and Laboratories, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,Department of Experimental Medicine (DIMES) and Center of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| | - Simona Granata
- Renal Unit, Department of Medicine, University-Hospital of Verona, Verona, Italy
| | - Maurizio Bruschi
- Laboratory of Molecular Nephrology, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Grazia Maria Spaggiari
- Department of Experimental Medicine (DIMES) and Center of Excellence for Biomedical Research (CEBR), University of Genoa, Genoa, Italy
| | - Giovanni Candiano
- Laboratory of Molecular Nephrology, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Gianluigi Zaza
- Renal Unit, Department of Medicine, University-Hospital of Verona, Verona, Italy
| |
Collapse
|
7
|
Sarhan M, Land WG, Tonnus W, Hugo CP, Linkermann A. Origin and Consequences of Necroinflammation. Physiol Rev 2018; 98:727-780. [PMID: 29465288 DOI: 10.1152/physrev.00041.2016] [Citation(s) in RCA: 124] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
When cells undergo necrotic cell death in either physiological or pathophysiological settings in vivo, they release highly immunogenic intracellular molecules and organelles into the interstitium and thereby represent the strongest known trigger of the immune system. With our increasing understanding of necrosis as a regulated and genetically determined process (RN, regulated necrosis), necrosis and necroinflammation can be pharmacologically prevented. This review discusses our current knowledge about signaling pathways of necrotic cell death as the origin of necroinflammation. Multiple pathways of RN such as necroptosis, ferroptosis, and pyroptosis have been evolutionary conserved most likely because of their differences in immunogenicity. As the consequence of necrosis, however, all necrotic cells release damage associated molecular patterns (DAMPs) that have been extensively investigated over the last two decades. Analysis of necroinflammation allows characterizing specific signatures for each particular pathway of cell death. While all RN-pathways share the release of DAMPs in general, most of them actively regulate the immune system by the additional expression and/or maturation of either pro- or anti-inflammatory cytokines/chemokines. In addition, DAMPs have been demonstrated to modulate the process of regeneration. For the purpose of better understanding of necroinflammation, we introduce a novel classification of DAMPs in this review to help detect the relative contribution of each RN-pathway to certain physiological and pathophysiological conditions.
Collapse
Affiliation(s)
- Maysa Sarhan
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Walter G Land
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Wulf Tonnus
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Christian P Hugo
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| | - Andreas Linkermann
- Division of Nephrology and Dialysis, Department of Medicine III, Medical University Vienna , Vienna , Austria ; INSERM UMR_S 1109, Laboratory of Excellence Transplantex, University of Strasbourg , Strasbourg , France ; German Academy of Transplantation Medicine, Munich , Germany ; and Division of Nephrology, Department of Internal Medicine III, University Hospital Carl Gustav Carus at the Technische Universität Dresden , Dresden , Germany
| |
Collapse
|
8
|
Antonangeli F, Soriani A, Cerboni C, Sciumè G, Santoni A. How Mucosal Epithelia Deal with Stress: Role of NKG2D/NKG2D Ligands during Inflammation. Front Immunol 2017; 8:1583. [PMID: 29209320 PMCID: PMC5701928 DOI: 10.3389/fimmu.2017.01583] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 11/03/2017] [Indexed: 01/22/2023] Open
Abstract
Mucosal epithelia encounter both physicochemical and biological stress during their life and have evolved several mechanisms to deal with them, including regulation of immune cell functions. Stressed and damaged cells need to be cleared to control local inflammation and trigger tissue healing. Engagement of the activating NKG2D receptor is one of the most direct mechanisms involved in the recognition of stressed cells by the immune system. Indeed, injured cells promptly express NKG2D ligands that in turn mediate the activation of lymphocytes of both innate and adaptive arms of the immune system. This review focuses on different conditions that are able to modulate NKG2D ligand expression on the epithelia. Special attention is given to the mechanisms of immunosurveillance mediated by natural killer cells, which are finely tuned by NKG2D. Different types of stress, including viral and bacterial infections, chronic inflammation, and cigarette smoke exposure, are discussed as paradigmatic conditions for NKG2D ligand modulation, and the implications for tissue homeostasis are discussed.
Collapse
Affiliation(s)
- Fabrizio Antonangeli
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Alessandra Soriani
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Cristina Cerboni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Giuseppe Sciumè
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy.,Neuromed I.R.C.C.S. - Istituto Neurologico Mediterraneo, Pozzilli, Italy
| |
Collapse
|
9
|
Hosomi S, Grootjans J, Tschurtschenthaler M, Krupka N, Matute JD, Flak MB, Martinez-Naves E, Gomez Del Moral M, Glickman JN, Ohira M, Lanier LL, Kaser A, Blumberg R. Intestinal epithelial cell endoplasmic reticulum stress promotes MULT1 up-regulation and NKG2D-mediated inflammation. J Exp Med 2017; 214:2985-2997. [PMID: 28747426 PMCID: PMC5626394 DOI: 10.1084/jem.20162041] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Revised: 05/25/2017] [Accepted: 07/10/2017] [Indexed: 12/25/2022] Open
Abstract
Hosomi et al. show that intestinal epithelial cell–specific deletion of X-box–binding protein 1, an unfolded protein response–related transcription factor, results in CHOP-dependent increased expression of specific natural killer group 2 member D (NKG2D) ligands. This activates NKG2D-expressing intraepithelial group 1 ILCs and promotes small intestinal inflammation. Endoplasmic reticulum (ER) stress is commonly observed in intestinal epithelial cells (IECs) and can, if excessive, cause spontaneous intestinal inflammation as shown by mice with IEC-specific deletion of X-box–binding protein 1 (Xbp1), an unfolded protein response–related transcription factor. In this study, Xbp1 deletion in the epithelium (Xbp1ΔIEC) is shown to cause increased expression of natural killer group 2 member D (NKG2D) ligand (NKG2DL) mouse UL16-binding protein (ULBP)–like transcript 1 and its human orthologue cytomegalovirus ULBP via ER stress–related transcription factor C/EBP homology protein. Increased NKG2DL expression on mouse IECs is associated with increased numbers of intraepithelial NKG2D-expressing group 1 innate lymphoid cells (ILCs; NK cells or ILC1). Blockade of NKG2D suppresses cytolysis against ER-stressed epithelial cells in vitro and spontaneous enteritis in vivo. Pharmacological depletion of NK1.1+ cells also significantly improved enteritis, whereas enteritis was not ameliorated in Recombinase activating gene 1−/−;Xbp1ΔIEC mice. These experiments reveal innate immune sensing of ER stress in IECs as an important mechanism of intestinal inflammation.
Collapse
Affiliation(s)
- Shuhei Hosomi
- Department of Medicine, Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Joep Grootjans
- Department of Medicine, Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Markus Tschurtschenthaler
- Department of Medicine, Division of Gastroenterology, University of Cambridge, Cambridge, England, UK
| | - Niklas Krupka
- Department of Medicine, Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Juan D Matute
- Department of Medicine, Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA.,Division of Newborn Medicine, Boston Children's Hospital, Harvard Medical School, Boston, MA
| | - Magdalena B Flak
- Department of Medicine, Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Eduardo Martinez-Naves
- Department of Microbiology and Immunology, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - Manuel Gomez Del Moral
- Department of Cell Biology, Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Mizuki Ohira
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Lewis L Lanier
- Department of Microbiology and Immunology, University of California, San Francisco, San Francisco, CA.,Parker Institute for Cancer Immunotherapy, University of California, San Francisco, San Francisco, CA
| | - Arthur Kaser
- Department of Gastroenterology and Hepatology, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
| | - Richard Blumberg
- Department of Medicine, Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| |
Collapse
|
10
|
Land WG, Agostinis P, Gasser S, Garg AD, Linkermann A. Transplantation and Damage-Associated Molecular Patterns (DAMPs). Am J Transplant 2016; 16:3338-3361. [PMID: 27421829 DOI: 10.1111/ajt.13963] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Revised: 06/24/2016] [Accepted: 07/10/2016] [Indexed: 01/25/2023]
Abstract
Upon solid organ transplantation and during cancer immunotherapy, cellular stress responses result in the release of damage-associated molecular patterns (DAMPs). The various cellular stresses have been characterized in detail over the last decades, but a unifying classification based on clinically important aspects is lacking. Here, we provide an in-depth review of the most recent literature along with a unifying concept of the danger/injury model, suggest a classification of DAMPs, and review the recently elaborated mechanisms that result in the emission of such factors. We further point out the differences in DAMP responses including the release following a heat shock pattern, endoplasmic reticulum stress, DNA damage-mediated DAMP release, and discuss the diverse pathways of regulated necrosis in this respect. The understanding of various forms of DAMPs and the consequences of their different release patterns are prerequisite to associate serum markers of cellular stresses with clinical outcomes.
Collapse
Affiliation(s)
- W G Land
- German Academy of Transplantation Medicine, Munich, Germany.,Laboratoire d'ImmunoRhumatologie Moléculaire, INSERM UMR_S1109, Plateforme GENOMAX, Faculté de Médecine, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Université de Strasbourg, Strasbourg, France.,LabexTRANSPLANTEX, Faculté de Médecine, Université de Strasbourg, Strasbourg, France
| | - P Agostinis
- Cell Death Research and Therapy (CDRT) Lab, Department of Cellular and Molecular Medicine, KU Leuven, University of Leuven, Leuven, Belgium
| | - S Gasser
- Immunology Programme and Department of Microbiology and Immunology, Centre for Life Sciences, National University of Singapore, Singapore, Singapore
| | - A D Garg
- Cell Death Research and Therapy (CDRT) Lab, Department of Cellular and Molecular Medicine, KU Leuven, University of Leuven, Leuven, Belgium
| | - A Linkermann
- Cluster of Excellence EXC306, Inflammation at Interfaces, Schleswig-Holstein, Germany.,Clinic for Nephrology and Hypertension, Christian-Albrechts-University, Kiel, Germany
| |
Collapse
|
11
|
Victorino F, Sojka DK, Brodsky KS, McNamee EN, Masterson JC, Homann D, Yokoyama WM, Eltzschig HK, Clambey ET. Tissue-Resident NK Cells Mediate Ischemic Kidney Injury and Are Not Depleted by Anti-Asialo-GM1 Antibody. THE JOURNAL OF IMMUNOLOGY 2015; 195:4973-85. [PMID: 26453755 DOI: 10.4049/jimmunol.1500651] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 09/15/2015] [Indexed: 01/01/2023]
Abstract
NK cells are innate lymphoid cells important for immune surveillance, identifying and responding to stress, infection, and/or transformation. Whereas conventional NK (cNK) cells circulate systemically, many NK cells reside in tissues where they appear to be poised to locally regulate tissue function. In the present study, we tested the contribution of tissue-resident NK (trNK) cells to tissue homeostasis by studying ischemic injury in the mouse kidney. Parabiosis experiments demonstrate that the kidney contains a significant fraction of trNK cells under homeostatic conditions. Kidney trNK cells developed independent of NFIL3 and T-bet, and they expressed a distinct cell surface phenotype as compared with cNK cells. Among these, trNK cells had reduced asialo-GM1 (AsGM1) expression relative to cNK cells, a phenotype observed in trNK cells across multiple organs and mouse strains. Strikingly, anti-AsGM1 Ab treatment, commonly used as an NK cell-depleting regimen, resulted in a robust and selective depletion of cNKs, leaving trNKs largely intact. Using this differential depletion, we tested the relative contribution of cNK and trNK cells in ischemic kidney injury. Whereas anti-NK1.1 Ab effectively depleted both trNK and cNK cells and protected against ischemic/reperfusion injury, anti-AsGM1 Ab preferentially depleted cNK cells and failed to protect against injury. These data demonstrate unanticipated specificity of anti-AsGM1 Ab depletion on NK cell subsets and reveal a new approach to study the contributions of cNK and trNK cells in vivo. In total, these data demonstrate that trNK cells play a key role in modulating local responses to ischemic tissue injury in the kidney and potentially other organs.
Collapse
Affiliation(s)
- Francisco Victorino
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045; Immunology Graduate Program, University of Colorado School of Medicine, Aurora, CO 80045
| | - Dorothy K Sojka
- Rheumatology Division, Washington University School of Medicine, St. Louis, MO 63110
| | - Kelley S Brodsky
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Eoin N McNamee
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Joanne C Masterson
- Gastrointestinal Eosinophilic Diseases Program, Section of Pediatric Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, University of Colorado School of Medicine, Aurora, CO 80045; Digestive Health Institute, Children's Hospital Colorado, Aurora, CO 80045; and
| | - Dirk Homann
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Wayne M Yokoyama
- Rheumatology Division, Washington University School of Medicine, St. Louis, MO 63110; Howard Hughes Medical Institute, Washington University School of Medicine, St. Louis, MO 63110
| | - Holger K Eltzschig
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045
| | - Eric T Clambey
- Department of Anesthesiology, University of Colorado School of Medicine, Aurora, CO 80045;
| |
Collapse
|
12
|
Song H, Kim Y, Park G, Kim YS, Kim S, Lee HK, Chung WY, Park SJ, Han SY, Cho D, Hur D. Transforming growth factor-β1 regulates human renal proximal tubular epithelial cell susceptibility to natural killer cells via modulation of the NKG2D ligands. Int J Mol Med 2015; 36:1180-8. [PMID: 26311146 DOI: 10.3892/ijmm.2015.2317] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Accepted: 08/13/2015] [Indexed: 11/06/2022] Open
Abstract
Transforming growth factor-β (TGF-β) has a significant role in the response to injury and tissue repair, and it has been detected in various cell types. However, the mechanism by which it regulates the response to ischemia‑reperfusion injury (IRI) and manipulates natural killer (NK) cells is not well understood. In the present study, TGF‑β modulated NK cell function, thereby promoting recovery from renal IRI. Human renal proximal tubular epithelial cells (HK‑2) treated with TGF‑β exhibited increased surface and intracellular expression of the NK group 2 member D (NKG2D) ligand MICA. This increased surface expression of MICA inhibited NK cell cytotoxicity to the HK‑2 cells. In addition, an enzyme‑linked immunosorbent assay revealed that TGF‑β treatment evidently increased the amount of soluble MICA released into the culture supernatant from HK‑2 cells. Taken together, these findings suggest that TGF‑β‑induced release of soluble MICA leads to downregulation of NKG2D, thereby preventing NK cell‑mediated cytotoxicity toward renal proximal tubular epithelial cells in renal IRI, which in turn improves the survival of these cells.
Collapse
Affiliation(s)
- Hyunkeun Song
- Department of Microbiology and Immunology, Laboratory for Medical Oncology, Inje University College of Medicine, Busan 614‑735, Republic of Korea
| | - Yeonye Kim
- Department of Microbiology and Immunology, Laboratory for Medical Oncology, Inje University College of Medicine, Busan 614‑735, Republic of Korea
| | - Gabin Park
- Department of Anatomy, Inje University College of Medicine, Busan 614‑735, Republic of Korea
| | - Yeong-Seok Kim
- Department of Anatomy, Inje University College of Medicine, Busan 614‑735, Republic of Korea
| | - Seonghan Kim
- Department of Anatomy, Inje University College of Medicine, Busan 614‑735, Republic of Korea
| | - Hyun-Kyung Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan 614‑735, Republic of Korea
| | - Woo Yeong Chung
- Department of Pediatrics, Inje University Busan Paik Hospital, Busan 614‑735, Republic of Korea
| | - Seok Ju Park
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan 614‑735, Republic of Korea
| | - Sang-Youb Han
- Department of Internal Medicine, Inje University Ilsan-Paik Hospital, Goyang, Gyeonggi 411‑706, Republic of Korea
| | - Daeho Cho
- Department of Life Science, Sookmyung Women's University, Yongsan-ku, Seoul 140-742, Republic of Korea
| | - Daeyoung Hur
- Department of Anatomy, Inje University College of Medicine, Busan 614‑735, Republic of Korea
| |
Collapse
|
13
|
Kang R, Chen R, Zhang Q, Hou W, Wu S, Cao L, Huang J, Yu Y, Fan XG, Yan Z, Sun X, Wang H, Wang Q, Tsung A, Billiar TR, Zeh HJ, Lotze MT, Tang D. HMGB1 in health and disease. Mol Aspects Med 2014; 40:1-116. [PMID: 25010388 PMCID: PMC4254084 DOI: 10.1016/j.mam.2014.05.001] [Citation(s) in RCA: 683] [Impact Index Per Article: 68.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 05/05/2014] [Indexed: 12/22/2022]
Abstract
Complex genetic and physiological variations as well as environmental factors that drive emergence of chromosomal instability, development of unscheduled cell death, skewed differentiation, and altered metabolism are central to the pathogenesis of human diseases and disorders. Understanding the molecular bases for these processes is important for the development of new diagnostic biomarkers, and for identifying new therapeutic targets. In 1973, a group of non-histone nuclear proteins with high electrophoretic mobility was discovered and termed high-mobility group (HMG) proteins. The HMG proteins include three superfamilies termed HMGB, HMGN, and HMGA. High-mobility group box 1 (HMGB1), the most abundant and well-studied HMG protein, senses and coordinates the cellular stress response and plays a critical role not only inside of the cell as a DNA chaperone, chromosome guardian, autophagy sustainer, and protector from apoptotic cell death, but also outside the cell as the prototypic damage associated molecular pattern molecule (DAMP). This DAMP, in conjunction with other factors, thus has cytokine, chemokine, and growth factor activity, orchestrating the inflammatory and immune response. All of these characteristics make HMGB1 a critical molecular target in multiple human diseases including infectious diseases, ischemia, immune disorders, neurodegenerative diseases, metabolic disorders, and cancer. Indeed, a number of emergent strategies have been used to inhibit HMGB1 expression, release, and activity in vitro and in vivo. These include antibodies, peptide inhibitors, RNAi, anti-coagulants, endogenous hormones, various chemical compounds, HMGB1-receptor and signaling pathway inhibition, artificial DNAs, physical strategies including vagus nerve stimulation and other surgical approaches. Future work further investigating the details of HMGB1 localization, structure, post-translational modification, and identification of additional partners will undoubtedly uncover additional secrets regarding HMGB1's multiple functions.
Collapse
Affiliation(s)
- Rui Kang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.
| | - Ruochan Chen
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Qiuhong Zhang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Wen Hou
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Sha Wu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Lizhi Cao
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jin Huang
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Yan Yu
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xue-Gong Fan
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Zhengwen Yan
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA; Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, China
| | - Xiaofang Sun
- Key Laboratory for Major Obstetric Diseases of Guangdong Province, Key Laboratory of Reproduction and Genetics of Guangdong Higher Education Institutes, Experimental Department of Institute of Gynecology and Obstetrics, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510510, China
| | - Haichao Wang
- Laboratory of Emergency Medicine, The Feinstein Institute for Medical Research, Manhasset, NY 11030, USA
| | - Qingde Wang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Allan Tsung
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Timothy R Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Herbert J Zeh
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Michael T Lotze
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA
| | - Daolin Tang
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15213, USA.
| |
Collapse
|
14
|
Limited efficacy of immunosuppressive drugs on CD8+ T cell-mediated and natural killer cell-mediated lysis of human renal tubular epithelial cells. Transplantation 2014; 97:1110-8. [PMID: 24704664 DOI: 10.1097/tp.0000000000000108] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
BACKGROUND Although CD8+ T cell-mediated and natural killer (NK) cell-mediated cytotoxicity against renal tubular epithelial cells (TECs) plays a crucial role during rejection, the degree of inhibition of these lytic immune responses by immunosuppressive drugs is unknown. We investigated the CD8 T-cell and NK cell responses induced by TECs in vitro and questioned how these processes are affected by immunosuppressive drugs. METHODS Donor-derived TECs were co-cultured with recipient peripheral blood monocyte cells. Proliferation of CD8+ T cells and NK cell subsets was assessed using PKH dilution assay. CD107a degranulation and europium release assay were performed to explore CD8+-mediated and NK cell-mediated TEC lysis. Experiments were conducted in the absence or presence of tacrolimus (10 ng/mL), everolimus (10 ng/mL), and prednisolone (200 ng/mL). RESULTS Tubular epithelial cells induce significant CD8+ T-cell and NK cell proliferation. All immunosuppressive drugs significantly inhibited TEC-induced CD8+ T-cell proliferation. Interestingly, prednisolone was the most powerful inhibitor of NK cell proliferation. CD8-mediated and NK cell-mediated early lytic responses were marked by strong degranulation after an encounter of unstimulated TECs, represented by a high cell surface expression of CD107a. However, with the use of interferon-γ-activated and tumor necrosis factor-α-activated TECs, the NK degranulation response was significantly reduced and CD8 degranulation response was even more enhanced (P<0.05). Tubular epithelial cell-induced CD8 degranulation and CD8-mediated TEC lysis were preferentially inhibited by tacrolimus and prednisolone, and not by everolimus. Although tacrolimus showed the most inhibitory effect on the degranulation of NK cells, NK cell-mediated TEC lysis was efficiently inhibited by prednisolone (P<0.05). CONCLUSION Overall, our data point to a limited efficacy of immunosuppressive drugs on CD8+ T cell-mediated and NK cell-mediated lysis of human renal TECs.
Collapse
|
15
|
Asavarut P, Zhao H, Gu J, Ma D. The role of HMGB1 in inflammation-mediated organ injury. ACTA ACUST UNITED AC 2013; 51:28-33. [PMID: 23711603 DOI: 10.1016/j.aat.2013.03.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 10/29/2012] [Accepted: 11/01/2012] [Indexed: 02/09/2023]
Abstract
HMGB1 is a chromosome-binding protein that also acts as a damage-associated molecular pattern molecule. It has potent proinflammatory effects and is one of key mediators of organ injury. Evidence from research has revealed its involvement in the signaling mechanisms of Toll-like receptors and the receptor for advanced glycation end-products in organ injury. HMGB1-mediated organ injuries are acute damage including ischemic, mechanical, allograft rejection and toxicity, and chronic diseases of the heart, kidneys, lungs, and brain. Strategies against HMGB1 and its associated cellular signal pathways need to be developed and may have preventive and therapeutic potentials in organ injury.
Collapse
Affiliation(s)
- Paladd Asavarut
- Section of Anaesthetics, Pain Medicine & Intensive Care, Department of Surgery and Cancer, Imperial College London, Chelsea and Westminster Hospital, London, UK
| | | | | | | |
Collapse
|
16
|
Spiegel D. Tranceformations: hypnosis in brain and body. Depress Anxiety 2013; 30:342-52. [PMID: 23423952 DOI: 10.1002/da.22046] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 11/27/2012] [Accepted: 12/01/2012] [Indexed: 01/30/2023] Open
Abstract
In this review, the role of hypnosis and related psychotherapeutic techniques are discussed in relation to the anxiety disorders. In particular, anxiety is addressed as a special form of mind/body problem involving reverberating interaction between mental and physical distress. The history of hypnosis as a therapeutic discipline is reviewed, after which neurobiological evidence of the effect of hypnosis on modulation of perception in the brain. Specific brain regions involved in hypnosis are reviewed, notably the dorsal anterior cingulate gyrus and the dorsolateral prefrontal cortex. The importance of hypnotizability as a trait, stable variability in hypnotic responsiveness, is discussed. Analogies between the hypnotic state and dissociative reactions to trauma are presented, and the uses of hypnosis in treating posttraumatic stress disorder, stressful situations, and phobias as well as outcome data are reviewed. Effects of hypnosis on control of somatic processes are discussed, and then effects of psychosocial support involving Supportive-Expressive Group Therapy and hypnosis on survival time for cancer patients are evaluated. The evidence indicates an important role for hypnosis in managing anxiety disorders and anxiety related to medical illness.
Collapse
Affiliation(s)
- David Spiegel
- Stanford University School of Medicine, Stanford, CA 94305-5718, USA.
| |
Collapse
|
17
|
Huang M, Sun R, Wei H, Tian Z. Simultaneous knockdown of multiple ligands of innate receptor NKG2D prevents natural killer cell-mediated fulminant hepatitis in mice. Hepatology 2013; 57:277-88. [PMID: 22806577 DOI: 10.1002/hep.25959] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Accepted: 06/21/2012] [Indexed: 02/03/2023]
Abstract
UNLABELLED NKG2D activation plays an important role in initiating and maintaining liver inflammation, and blockade of NKG2D recognition becomes a promising approach to alleviate liver inflammation. Treatment by silencing NKG2D ligands on hepatocytes, but not NKG2D on circulating immune cells, is more liver-specific, and simultaneous knockdown of multiple NKG2D ligands on hepatocytes will be more efficient in liver disease intervention. Here, we constructed a single vector that could simultaneously express multiple short hairpin RNAs (shRNAs) against all murine NKG2D ligands including Rae1, Mult1, and H60. After hydrodynamic injection of plasmid containing the three shRNA sequences (shRae1-shMult1-shH60), also called pRNAT-shRMH, we found the expression of all three NKG2D ligands on hepatocytes was downregulated both on messenger RNA and protein levels. Moreover, natural killer (NK) cell-mediated NKG2D-dependent fulminant hepatitis of the mice was alleviated, along with inactivation of hepatic NK cells, by pRNAT-shRMH if compared with its counterpart RNA interference vectors against single or double ligands. The therapeutic efficacy of pRNAT-shRMH was equivalent to that of injecting three monoclonal antibodies against Rae1, Mult1, and H60. For better in vivo application, we constructed a recombinant adenovirus containing pRNAT-shRMH (called Ad-RMH) with efficient hepatotropic infection capacity and observed that Ad-RMH intravenous injection exerted a similar therapeutic efficiency as plasmid pRNAT-shRMH hydrodynamic injection. Noticeably, simultaneous knockdown of multiple human NKG2D ligands (MICA/B, ULBP2, and ULBP3) also significantly attenuated NK cell cytolysis against human NKG2D ligand-positive hepatocyte L-02 cells, suggesting a possible translation into human settings. CONCLUSION Simultaneous knockdown of multiple ligands of NKG2D prevents NK cell-mediated fulminant hepatitis and is a potential therapeutic approach to treat liver diseases.
Collapse
Affiliation(s)
- Mei Huang
- Department of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | | | | | | |
Collapse
|
18
|
Zhang X, Beduhn M, Zheng X, Lian D, Chen D, Li R, Siu LKS, Marleau A, French PW, Ichim TE, Min WP. Induction of alloimmune tolerance in heart transplantation through gene silencing of TLR adaptors. Am J Transplant 2012; 12:2675-88. [PMID: 22823145 DOI: 10.1111/j.1600-6143.2012.04196.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Toll-like receptors (TLRs) activate biochemical pathways that evoke activation of innate immunity, which leads to dendritic cell (DC) maturation and initiation of adaptive immune responses that provoke allograft rejection. We aimed to prolong allograft survival by selectively inhibiting expression of the common adaptors of TLR signaling, namely MyD88 and TRIF, using siRNA. In vitro we demonstrated that blocking expression of MyD88 and TRIF led to reduced DC maturation. In vivo treatment of recipients with MyD88 and TRIF siRNA significantly prolonged allograft survival in the BALB/c > C57BL6 cardiac transplant model. Moreover, the combination of MyD88 and TRIF siRNA along with a low dose of rapamycin further extended the allograft survival (88.8 ± 7.1 days). Tissue histopathology demonstrated an overall reduction in lymphocyte interstitium infiltration, vascular obstruction and hemorrhage in mice treated with MyD88 and TRIF siRNA vector plus rapamycin. Furthermore, treatment was associated with an increase in the numbers of CD4(+) CD25(+) FoxP3(+) regulatory T cells and Th2 deviation. To our knowledge, this study is the first demonstration of prolonging the survival of allogeneic heart grafts through gene silencing of TLR signaling adaptors, highlighting the therapeutic potential of siRNA in clinical transplantation.
Collapse
Affiliation(s)
- X Zhang
- Departments of Surgery, Pathology, and Oncology, University of Western Ontario, London, Canada
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|