1
|
Gui Z, Al Moussawy M, Sanders SM, Abou-Daya KI. Innate Allorecognition in Transplantation: Ancient Mechanisms With Modern Impact. Transplantation 2024; 108:1524-1531. [PMID: 38049941 PMCID: PMC11188633 DOI: 10.1097/tp.0000000000004847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/15/2023] [Accepted: 09/19/2023] [Indexed: 12/06/2023]
Abstract
Through the effective targeting of the adaptive immune system, solid organ transplantation became a life-saving therapy for organ failure. However, beyond 1 y of transplantation, there is little improvement in transplant outcomes. The adaptive immune response requires the activation of the innate immune system. There are no modalities for the specific targeting of the innate immune system involvement in transplant rejection. However, the recent discovery of innate allorecognition and innate immune memory presents novel targets in transplantation that will increase our understanding of organ rejection and might aid in improving transplant outcomes. In this review, we look at the latest developments in the study of innate allorecognition and innate immune memory in transplantation.
Collapse
Affiliation(s)
- Zeping Gui
- Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA
| | - Mouhamad Al Moussawy
- Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA
| | - Steven M. Sanders
- Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA
| | - Khodor I. Abou-Daya
- Department of Surgery, Thomas E. Starzl Transplantation Institute, University of Pittsburgh, Pittsburgh, PA
| |
Collapse
|
2
|
Du X, Li M, Huan C, Lv G. Dendritic cells in liver transplantation immune response. Front Cell Dev Biol 2023; 11:1277743. [PMID: 37900282 PMCID: PMC10606587 DOI: 10.3389/fcell.2023.1277743] [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: 08/15/2023] [Accepted: 09/27/2023] [Indexed: 10/31/2023] Open
Abstract
Dendritic cells (DCs) are the most powerful antigen presenting cells (APCs), they are considered one of the key regulatory factors in the liver immune system. There is currently much interest in modulating DC function to improve transplant immune response. In liver transplantation, DCs participate in both the promotion and inhibition of the alloreponse by adopting different phenotypes and function. Thus, in this review, we discussed the origin, maturation, migration and pathological effects of several DC subsets, including the conventional DC (cDC), plasmacytoid DC (pDC) and monocyte-derived DC (Mo-DC) in liver transplantation, and we summarized the roles of these DC subsets in liver transplant rejection and tolerance. In addition, we also outlined the latest progress in DC-based related treatment regimens. Overall, our discussion provides a beneficial resource for better understanding the biology of DCs and their manipulation to improve the immune adaptability of patients in transplant status.
Collapse
Affiliation(s)
- Xiaodong Du
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Mingqian Li
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| | - Chen Huan
- Center of Infectious Diseases and Pathogen Biology, Institute of Virology and AIDS Research, Key Laboratory of Organ Regeneration and Transplantation of The Ministry of Education, The First Hospital of Jilin University, Changchun, China
| | - Guoyue Lv
- Department of Hepatobiliary and Pancreatic Surgery, General Surgery Center, The First Hospital of Jilin University, Changchun, China
| |
Collapse
|
3
|
Wu Z, Liang J, Zhu S, Liu N, Zhao M, Xiao F, Li G, Yu C, Jin C, Ma J, Sun T, Zhu P. Single-cell analysis of graft-infiltrating host cells identifies caspase-1 as a potential therapeutic target for heart transplant rejection. Front Immunol 2023; 14:1251028. [PMID: 37781362 PMCID: PMC10535112 DOI: 10.3389/fimmu.2023.1251028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 08/29/2023] [Indexed: 10/03/2023] Open
Abstract
Aims Understanding the cellular mechanisms underlying early allograft rejection is crucial for the development of effective immunosuppressant strategies. This study aims to investigate the cellular composition of graft-infiltrating cells during the early rejection stage at a single-cell level and identify potential therapeutic targets. Methods A heterotopic heart transplant model was established using enhanced green fluorescent protein (eGFP)-expressing mice as recipients of allogeneic or syngeneic grafts. At 3 days post-transplant, eGFP-positive cells infiltrating the grafts were sorted and subjected to single-cell RNA-seq analysis. Potential molecular targets were evaluated by assessing graft survival and functions following administration of various pharmacological inhibitors. Results A total of 27,053 cells recovered from syngrafts and allografts were classified into 20 clusters based on expression profiles and annotated with a reference dataset. Innate immune cells, including monocytes, macrophages, neutrophils, and dendritic cells, constituted the major infiltrating cell types (>90%) in the grafts. Lymphocytes, fibroblasts, and endothelial cells represented a smaller population. Allografts exhibited significantly increased proportions of monocyte-derived cells involved in antigen processing and presentation, as well as activated lymphocytes, as compared to syngrafts. Differential expression analysis revealed upregulation of interferon activation-related genes in the innate immune cells infiltrating allografts. Pro-inflammatory polarization gene signatures were also enriched in these infiltrating cells of allografts. Gene profiling and intercellular communication analysis identified natural killer cells as the primary source of interferon-γ signaling, activating inflammatory monocytes that displayed strong signals of major histocompatibility complexes and co-stimulatory molecules. The inflammatory response was also associated with promoted T cell proliferation and activation in allografts during the early transplant stages. Notably, caspase-1 exhibited specific upregulation in inflammatory monocytes in response to interferon signaling. The regulon analysis also revealed a significant enrichment of interferon-related motifs within the transcriptional regulatory network of downstream inflammatory genes including caspase-1. Remarkably, pharmacological inhibition of caspase-1 was shown to reduce immune infiltration, prevent acute graft rejection, and improve cardiac contractile function. Conclusion The single-cell transcriptional profile highlighted the crucial role of caspase-1 in interferon-mediated inflammatory monocytes infiltrating heart transplants, suggesting its potential as a therapeutic target for attenuating rejection.
Collapse
Affiliation(s)
- Zhichao Wu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
- Department of Thoracic Surgery, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Jialiang Liang
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Shuoji Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Nanbo Liu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Mingyi Zhao
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Fei Xiao
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Guanhua Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Changjiang Yu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Chengyu Jin
- Department of Thoracic Surgery, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Jinshan Ma
- Department of Thoracic Surgery, People’s Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang, China
| | - Tucheng Sun
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People’s Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangdong Provincial Key Laboratory of Pathogenesis, Targeted Prevention and Treatment of Heart Disease, Guangzhou Key Laboratory of Cardiac Pathogenesis and Prevention, Guangzhou, Guangdong, China
| |
Collapse
|
4
|
Hazrati A, Soudi S, Malekpour K, Mahmoudi M, Rahimi A, Hashemi SM, Varma RS. Immune cells-derived exosomes function as a double-edged sword: role in disease progression and their therapeutic applications. Biomark Res 2022; 10:30. [PMID: 35550636 PMCID: PMC9102350 DOI: 10.1186/s40364-022-00374-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Accepted: 04/03/2022] [Indexed: 02/08/2023] Open
Abstract
Exosomes, ranging in size from 30 to 150 nm as identified initially via electron microscopy in 1946, are one of the extracellular vesicles (EVs) produced by many cells and have been the subject of many studies; initially, they were considered as cell wastes with the belief that cells produced exosomes to maintain homeostasis. Nowadays, it has been found that EVs secreted by different cells play a vital role in cellular communication and are usually secreted in both physiological and pathological conditions. Due to the presence of different markers and ligands on the surface of exosomes, they have paracrine, endocrine and autocrine effects in some cases. Immune cells, like other cells, can secrete exosomes that interact with surrounding cells via these vesicles. Immune system cells-derived exosomes (IEXs) induce different responses, such as increasing and decreasing the transcription of various genes and regulating cytokine production. This review deliberate the function of innate and acquired immune cells derived exosomes, their role in the pathogenesis of immune diseases, and their therapeutic appliances.
Collapse
Affiliation(s)
- Ali Hazrati
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Sara Soudi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Kosar Malekpour
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mohammad Mahmoudi
- Department of Immunology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Arezou Rahimi
- Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Seyed Mahmoud Hashemi
- Department of Immunology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Šlechtitelů 27, 783 71, Olomouc, Czech Republic
| |
Collapse
|
5
|
Abstract
Granulocyte macrophage-colony stimulating factor (GM-CSF) was originally identified as a growth factor for its ability to promote the proliferation and differentiation in vitro of bone marrow progenitor cells into granulocytes and macrophages. Many preclinical studies, using GM-CSF deletion or depletion approaches, have demonstrated that GM-CSF has a wide range of biological functions, including the mediation of inflammation and pain, indicating that it can be a potential target in many inflammatory and autoimmune conditions. This review provides a brief overview of GM-CSF biology and signaling, and summarizes the findings from preclinical models of a range of inflammatory and autoimmune disorders and the latest clinical trials targeting GM-CSF or its receptor in these disorders.
Collapse
Affiliation(s)
- Adrian A Achuthan
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia.
| | - Kevin M C Lee
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia
| | - John A Hamilton
- Department of Medicine, Royal Melbourne Hospital, The University of Melbourne, Parkville, Victoria 3050, Australia; Australian Institute for Musculoskeletal Science, St Albans, Victoria 3021, Australia
| |
Collapse
|
6
|
Garcia-Sanchez C, Casillas-Abundis MA, Pinelli DF, Tambur AR, Hod-Dvorai R. Impact of SIRPα polymorphism on transplant outcomes in HLA-identical living donor kidney transplantation. Clin Transplant 2021; 35:e14406. [PMID: 34180101 DOI: 10.1111/ctr.14406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 06/09/2021] [Accepted: 06/21/2021] [Indexed: 12/12/2022]
Abstract
Signal-regulatory protein α (SIRPα), a polymorphic inhibitory membrane-bound receptor, and its ligand CD47 have recently been implicated in the modulation of innate immune allorecognition in murine models. Here, we investigate the potential impact of SIRPα donor-recipient mismatches on graft outcomes in human kidney transplantation. To eliminate the specific role of HLA-matching in alloresponse, we genotyped the two most common variants of SIRPα in a cohort of 55 HLA-identical, biologically-related, donor-recipient pairs. 69% of pairs were SIRPα identical. No significant differences were found between donor-recipient SIRPα-mismatch status and T cell-mediated rejection/borderline changes (25.8% vs. 25%) or slow graft function (15.8% vs. 17.6%). A trend towards more graft failure (GF) (23.5% vs. 5.3%, P = .06), interstitial inflammation (50% vs. 23%, P = .06) and significant changes in peritubular capillaritis (ptc) (25% vs. 0%, P = .02) were observed in the SIRPα-mismatched group. Unexpectedly, graft-versus-host (GVH) SIRPα-mismatched pairs exhibited higher rates of GF and tubulitis (38% vs. 5%, P = .031 and .61 ± .88 vs. 0, P = .019; respectively). Whether the higher prevalence of ptc in SIRPα-mismatched recipients and the higher rates of GF in GVH SIRPα-mismatched pairs represent a potential role for SIRPα in linking innate immunity and alloimmune rejection requires further investigation in larger cohorts.
Collapse
Affiliation(s)
- Cynthia Garcia-Sanchez
- Transplant Immunology Laboratory, Comprehensive Transplant Center, Northwestern University, Chicago, Illinois, USA
| | - M Aurora Casillas-Abundis
- Transplant Immunology Laboratory, Comprehensive Transplant Center, Northwestern University, Chicago, Illinois, USA
| | - David F Pinelli
- Transplant Immunology Laboratory, Comprehensive Transplant Center, Northwestern University, Chicago, Illinois, USA
| | - Anat R Tambur
- Transplant Immunology Laboratory, Comprehensive Transplant Center, Northwestern University, Chicago, Illinois, USA
| | - Reut Hod-Dvorai
- Pathology Department, SUNY Upstate Medical University, Syracuse, New York, USA
| |
Collapse
|
7
|
Abou-Daya KI, Oberbarnscheidt MH. Innate allorecognition in transplantation. J Heart Lung Transplant 2021; 40:557-561. [PMID: 33958265 DOI: 10.1016/j.healun.2021.03.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/21/2022] Open
Abstract
Successful allogeneic transplantation has been made possible by suppressing activation of the adaptive immune system. Current immunosuppressive therapy prevents rejection by targeting T and B cells. Despite this effective treatment, it is the innate immune system, which includes dendritic cells, monocytes, natural killer cells, that is responsible for the initiation of the adaptive immune response. Recent work has described that the innate immune system is capable of recognizing allogeneic nonself and some of the mechanisms of innate allorecognition have been uncovered. Better understanding of the role of the innate immune system in initiation and maintenance of the allo-immune response has potential to lead to better treatment strategies for transplant patients, prolonging allograft survival. Here, we review advances in our understanding of innate allorecognition in transplantation.
Collapse
Affiliation(s)
- Khodor I Abou-Daya
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Martin H Oberbarnscheidt
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania.
| |
Collapse
|
8
|
Hwang B, Bryers J, Mulligan MS. Potential role of exosome-based allorecognition pathways involved in lung transplant rejection. J Thorac Cardiovasc Surg 2020; 161:e129-e134. [PMID: 33258452 DOI: 10.1016/j.jtcvs.2020.04.183] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 04/02/2020] [Accepted: 04/09/2020] [Indexed: 02/06/2023]
Abstract
Innate and adaptive immunity both contribute to allorecognition mechanisms that drive rejection after lung transplantation. Classic allorecognition pathways have been extensively described, but there continues to be several unanswered questions. Exosome research appears to be a novel and potentially significant area of allorecognition research and could be the missing link that answers some existing questions. This article reviews literature that is associated with allorecognition pathways and the role of exosomes in alloreactivity.
Collapse
Affiliation(s)
- Billanna Hwang
- Department of Surgery, University of Washington School of Medicine, Seattle, Wash; Center for Lung Biology, University of Washington, Seattle, Wash; West Coast Exosortium (WestCo Exosortium), Seattle, Wash.
| | - James Bryers
- Center for Lung Biology, University of Washington, Seattle, Wash; West Coast Exosortium (WestCo Exosortium), Seattle, Wash; Department of Bioengineering, University of Washington, Seattle, Wash
| | - Michael S Mulligan
- Department of Surgery, University of Washington School of Medicine, Seattle, Wash; Center for Lung Biology, University of Washington, Seattle, Wash; West Coast Exosortium (WestCo Exosortium), Seattle, Wash; Department of Medicine, University of Washington School of Medicine, Seattle, Wash
| |
Collapse
|
9
|
Hamilton JA. GM-CSF in inflammation. J Exp Med 2020; 217:jem.20190945. [PMID: 31611249 PMCID: PMC7037240 DOI: 10.1084/jem.20190945] [Citation(s) in RCA: 163] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/09/2019] [Accepted: 09/11/2019] [Indexed: 02/06/2023] Open
Abstract
GM-CSF is a potential therapeutic target in inflammation and autoimmunity. This study reviews the literature on the biology of GM-CSF, in particular that describing the research leading to clinical trials targeting GM-CSF and its receptor in numerous inflammatory/autoimmune conditions, such as rheumatoid arthritis. Granulocyte–macrophage colony-stimulating factor (GM-CSF) has many more functions than its original in vitro identification as an inducer of granulocyte and macrophage development from progenitor cells. Key features of GM-CSF biology need to be defined better, such as the responding and producing cell types, its links with other mediators, its prosurvival versus activation/differentiation functions, and when it is relevant in pathology. Significant preclinical data have emerged from GM-CSF deletion/depletion approaches indicating that GM-CSF is a potential target in many inflammatory/autoimmune conditions. Clinical trials targeting GM-CSF or its receptor have shown encouraging efficacy and safety profiles, particularly in rheumatoid arthritis. This review provides an update on the above topics and current issues/questions surrounding GM-CSF biology.
Collapse
Affiliation(s)
- John A Hamilton
- The University of Melbourne, Department of Medicine, Royal Melbourne Hospital, Parkville, Victoria, Australia.,Australian Institute for Musculoskeletal Science, The University of Melbourne and Western Health, St Albans, Victoria, Australia
| |
Collapse
|
10
|
Li Y, Zhai P, Zheng Y, Zhang J, Kellum JA, Peng Z. Csf2 Attenuated Sepsis-Induced Acute Kidney Injury by Promoting Alternative Macrophage Transition. Front Immunol 2020; 11:1415. [PMID: 32733471 PMCID: PMC7358306 DOI: 10.3389/fimmu.2020.01415] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 06/02/2020] [Indexed: 12/12/2022] Open
Abstract
Sepsis is a systemic inflammatory state that occurs in response to infection and significantly increases mortality in combination with acute kidney injury (AKI). Macrophages accumulate in the kidney after injury and undergo a transition from a proinflammatory (M1) phenotype to an alternatively activated (M2) phenotype that is required for normal repair. However, the specific signals that regulate the transition from the M1 to M2 phenotype in vivo are unknown. Here, we found an unexpected role of Colony stimulating factor 2 (Csf2) in controlling macrophage transition in vitro and in a mouse model of sepsis induced by cecal ligation and puncture (CLP). We first co-cultured human M1 macrophages with HK-2 cells and characterized cytokine/chemokine profiles via Luminex. Of the cytokines and chemokines that were overexpressed in medium from M1 macrophages cocultured with human kidney-2 (HK-2) cells compared with that from M1 macrophages cultured alone, Csf2 and IL6 showed the greatest increases. Csf2 was exclusively secreted by HK-2 cells but not by M1 macrophages. Furthermore, recombinant human Csf2 protein promoted transition of M1 macrophages to the M2 phenotype in a dose and time-dependent manner. The apoptosis and reactive oxygen species (ROS) release induced by M1 macrophages in HK-2 cells was attenuated after exposure to exogenous Csf2. In addition, the switch from the proinflammatory M1 phenotype to the M2 phenotype occurred via the p-Stat5 pathway, which was activated by Csf2. Importantly, we found that intraperitoneal injection of a Csf2-neutralizing antibody after CLP aggravated kidney injury and suppressed tubular proliferation, subsequently decreasing survival. However, administration of recombinant mouse Csf2 protein could rescue mice with sepsis. Together, our results indicate that Csf2 plays critical roles in regulating macrophage transition via activation of p-STAT5. These data form a foundation upon which new therapeutic strategies can be designed to improve the therapeutic efficacy of cytokine-based treatments for sepsis-induced AKI.
Collapse
Affiliation(s)
- Yiming Li
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Pan Zhai
- Department of Neurology, Hubei Province Hospital of Tradition Chinese Medicine, Wuhan, China
| | - Yawen Zheng
- Department of Urological Organ Transplantation, The Second Xiangya Hospital of Central South University, Changsha, China
| | - Jing Zhang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - John A Kellum
- Center of Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Center of Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| |
Collapse
|
11
|
Zhao D, Abou-Daya KI, Dai H, Oberbarnscheidt MH, Li XC, Lakkis FG. Innate Allorecognition and Memory in Transplantation. Front Immunol 2020; 11:918. [PMID: 32547540 PMCID: PMC7270276 DOI: 10.3389/fimmu.2020.00918] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 04/20/2020] [Indexed: 12/11/2022] Open
Abstract
Over the past few decades, we have witnessed a decline in the rates of acute rejection without significant improvement in chronic rejection. Current treatment strategies principally target the adaptive immune response and not the innate response. Therefore, better understanding of innate immunity in transplantation and how to target it is highly desirable. Here, we review the latest advances in innate immunity in transplantation focusing on the roles and mechanisms of innate allorecognition and memory in myeloid cells. These novel concepts could explain why alloimmune response do not abate over time and shed light on new molecular pathways that can be interrupted to prevent or treat chronic rejection.
Collapse
Affiliation(s)
- Daqiang Zhao
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Urology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Khodor I Abou-Daya
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Hehua Dai
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States
| | - Martin H Oberbarnscheidt
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Critical Care Medicine, Center for Critical Care Nephrology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Xian C Li
- Immunobiology & Transplant Science Center and Department of Surgery, Houston Methodist Hospital, Texas Medical Center, Houston, TX, United States
| | - Fadi G Lakkis
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Medicine, Renal-Electrolyte Division, University of Pittsburgh, Pittsburgh, PA, United States
| |
Collapse
|
12
|
Gill RG, Lin CM. Linking innate immunity and chronic antibody-mediated allograft rejection. Curr Opin Organ Transplant 2020; 24:694-698. [PMID: 31599762 DOI: 10.1097/mot.0000000000000708] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW To summarize recent findings linking donor-specific antibodies with innate immunity resulting in chronic allograft rejection. RECENT FINDINGS Studies in recent years highlight the significance of donor-specific antibodies (DSA) in both acute and chronic allograft rejection. Since chronic rejection is the leading cause of graft failure, this review centers on the contribution of three areas of innate immunity of particular recent focus: complement, NK cells, and macrophages. Recent advances indicate the diverse roles that complement components play both in directly initiating allograft injury and indirectly by contributing to enhanced alloreactivity. NK cells also have emerged as an additional innate response that directly links DSA with chronic graft injury. Finally, recent studies identify alternatively activated macrophages as an additional arm of innate immunity contributing to chronic allograft rejection. SUMMARY Chronic allograft rejection involves a significant contribution of DSA and differing pathways of the innate immune system. However, key issues remain unresolved. First, it is not always clear which of these varied sources of innate immunity contributing to chronic rejection may be antibody dependent. Moreover, it is not yet clear if these innate pathways represent independent routes that contribute to chronic rejection or rather act in concert to mediate allograft injury.
Collapse
Affiliation(s)
- Ronald G Gill
- Department of Surgery, Division of Transplant, University of Colorado Aurora, Denver, Colorado
| | - Christine M Lin
- Department of Medicine, Division of Pulmonary, Critical Care & Sleep Medicine, University of Florida, Gainesville, Florida, USA
| |
Collapse
|
13
|
Abstract
Pre-clinical models and clinical trials demonstrate that targeting the action of the cytokine, granulocyte macrophage-colony stimulating factor (GM-CSF), can be efficacious in inflammation/autoimmunity reinforcing the importance of understanding how GM-CSF functions; a significant GM-CSF-responding cell in this context is likely to be the monocyte. This article summarizes critically the literature on the downstream cellular pathways regulating GM-CSF interaction with monocytes (and macrophages), highlighting some contentious issues, and conclusions surrounding this biology. It also suggests future directions which could be undertaken so as to more fully understand this aspect of GM-CSF biology. Given the focus of this collection of articles on monocytes, the following discussion in general will be limited to this population or to its more mature progeny, the macrophage, even though GM-CSF biology is broader than this.
Collapse
Affiliation(s)
- John A Hamilton
- The University of Melbourne, Department of Medicine, Royal Melbourne Hospital, Parkville, VIC, Australia.,Australian Institute for Musculoskeletal Science (AIMSS), The University of Melbourne and Western Health, St. Albans, VIC, Australia
| |
Collapse
|
14
|
Adaptive innate immunity or innate adaptive immunity? Clin Sci (Lond) 2019; 133:1549-1565. [DOI: 10.1042/cs20180548] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Revised: 07/05/2019] [Accepted: 07/10/2019] [Indexed: 12/19/2022]
Abstract
Abstract
The innate immunity is frequently accepted as a first line of relatively primitive defense interfering with the pathogen invasion until the mechanisms of ‘privileged’ adaptive immunity with the production of antibodies and activation of cytotoxic lymphocytes ‘steal the show’. Recent advancements on the molecular and cellular levels have shaken the traditional view of adaptive and innate immunity. The innate immune memory or ‘trained immunity’ based on metabolic changes and epigenetic reprogramming is a complementary process insuring adaptation of host defense to previous infections.
Innate immune cells are able to recognize large number of pathogen- or danger- associated molecular patterns (PAMPs and DAMPs) to behave in a highly specific manner and regulate adaptive immune responses. Innate lymphoid cells (ILC1, ILC2, ILC3) and NK cells express transcription factors and cytokines related to subsets of T helper cells (Th1, Th2, Th17). On the other hand, T and B lymphocytes exhibit functional properties traditionally attributed to innate immunity such as phagocytosis or production of tissue remodeling growth factors. They are also able to benefit from the information provided by pattern recognition receptors (PRRs), e.g. γδT lymphocytes use T-cell receptor (TCR) in a manner close to PRR recognition. Innate B cells represent another example of limited combinational diversity usage participating in various innate responses. In the view of current knowledge, the traditional black and white classification of immune mechanisms as either innate or an adaptive needs to be adjusted and many shades of gray need to be included.
Collapse
|
15
|
Dang N, Lin Y, Rutgeerts O, Sagaert X, Billiau AD, Waer M, Sprangers B. Solid Tumor–Induced Immune Regulation Alters the GvHD/GvT Paradigm after Allogenic Bone Marrow Transplantation. Cancer Res 2019; 79:2709-2721. [DOI: 10.1158/0008-5472.can-18-3143] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 02/08/2019] [Accepted: 03/25/2019] [Indexed: 11/16/2022]
|
16
|
Lakkis FG, Li XC. Innate allorecognition by monocytic cells and its role in graft rejection. Am J Transplant 2018; 18:289-292. [PMID: 28722285 PMCID: PMC5775052 DOI: 10.1111/ajt.14436] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 07/07/2017] [Accepted: 07/11/2017] [Indexed: 01/25/2023]
Abstract
Innate recognition of microbial products and danger molecules by monocytes and macrophages has been well established; this is mediated primarily by pattern-recognition receptors and is central to the activation of innate and adaptive immune cells required for productive immunity. Whether monocytes and macrophages are equipped with an allorecognition system that allows them to respond directly to allogeneic grafts is a topic of much debate. Recent studies provide compelling evidence that these cells can recognize allogeneic entities and that they mediate graft rejection via direct cytotoxicity and priming of alloreactive T cells. In addition, these studies have uncovered a mechanism of innate allorecognition based on detection of the polymorphic molecule signal regulatory protein α (SIRPα) on donor cells. Further understanding of innate allorecognition and its consequences would provide essential insight into allograft rejection and lead to better therapies for transplant patients.
Collapse
Affiliation(s)
- Fadi G. Lakkis
- Thomas E. Starzl Transplantation Institute, Departments of Surgery, Immunology, and Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, U.S.A,To whom correspondence should be addressed:
| | - Xian C. Li
- Immunobiology and Transplant Science Center, Houston Methodist Hospital, Texas Medical Center, Houston, Texas, U.S.A
| |
Collapse
|
17
|
Dai H, Friday AJ, Abou-Daya KI, Williams AL, Mortin-Toth S, Nicotra ML, Rothstein DM, Shlomchik WD, Matozaki T, Isenberg JS, Oberbarnscheidt MH, Danska JS, Lakkis FG. Donor SIRPα polymorphism modulates the innate immune response to allogeneic grafts. Sci Immunol 2017; 2:2/12/eaam6202. [PMID: 28783664 DOI: 10.1126/sciimmunol.aam6202] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2016] [Accepted: 05/15/2017] [Indexed: 12/16/2022]
Abstract
Mice devoid of T, B, and natural killer (NK) cells distinguish between self and allogeneic nonself despite the absence of an adaptive immune system. When challenged with an allograft, they mount an innate response characterized by accumulation of mature, monocyte-derived dendritic cells (DCs) that produce interleukin-12 and present antigen to T cells. However, the molecular mechanisms by which the innate immune system detects allogeneic nonself to generate these DCs are not known. To address this question, we studied the innate response of Rag2-/- γc-/- mice, which lack T, B, and NK cells, to grafts from allogeneic donors. By positional cloning, we identified that donor polymorphism in the gene encoding signal regulatory protein α (SIRPα) is a key modulator of the recipient's innate allorecognition response. Donors that differed from the recipient in one or both Sirpa alleles elicited an innate alloresponse. The response was mediated by binding of donor SIRPα to recipient CD47 and was modulated by the strength of the SIRPα-CD47 interaction. Therefore, sensing SIRPα polymorphism by CD47 provides a molecular mechanism by which the innate immune system distinguishes between self and allogeneic nonself independently of T, B, and NK cells.
Collapse
Affiliation(s)
- Hehua Dai
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Andrew J Friday
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Khodor I Abou-Daya
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Amanda L Williams
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Steven Mortin-Toth
- Program in Genetics and Genome Biology, Hospital for Sick Children Research Institute, Toronto, Ontario M5G1X8, Canada
| | - Matthew L Nicotra
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - David M Rothstein
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Warren D Shlomchik
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Takashi Matozaki
- Division of Molecular and Cellular Signaling, Department of Biochemistry and Molecular Biology, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Kobe 650-0017, Japan
| | - Jeffrey S Isenberg
- Heart, Lung, Blood, and Vascular Medicine Institute and Division of Pulmonary, Allergy, and Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Martin H Oberbarnscheidt
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Program in Genetics and Genome Biology, Hospital for Sick Children Research Institute, Toronto, Ontario M5G1X8, Canada
| | - Jayne S Danska
- Program in Genetics and Genome Biology, Hospital for Sick Children Research Institute, Toronto, Ontario M5G1X8, Canada. .,Departments of Immunology and Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Ontario M5S1A8, Canada
| | - Fadi G Lakkis
- Thomas E. Starzl Transplantation Institute, Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA. .,Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| |
Collapse
|
18
|
Chow KV, Carrington EM, Zhan Y, Lew AM, Sutherland RM. Monocyte-Derived Dendritic Cells Impair Early Graft Function Following Allogeneic Islet Transplantation. Cell Transplant 2017; 26:319-326. [PMID: 27743446 PMCID: PMC5657768 DOI: 10.3727/096368916x693482] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 12/08/2016] [Indexed: 12/18/2022] Open
Abstract
Islet transplantation can cure type 1 diabetes but is limited by lack of donor organs and early graft dysfunction, such that many patients require multiple transplants to achieve insulin independence. Monocyte-derived dendritic cells (moDCs) arise during inflammation and allograft encounters where they can promote various innate and adaptive immune responses. To determine whether moDCs impair early graft function following allogeneic islet transplantation, we transplanted MHC-mismatched BALB/c (H-2d) islets into diabetic C57BL/6-CCR2.DTR recipients (H-2b) treated with either saline (control) or diphtheria toxin (DT) to deplete moDCs. Graft function was assessed by blood glucose (BG) measurement. DT treatment resulted in specific depletion of graft site moDCs posttransplant. Despite equivalent pretransplant BG levels [27.0 ± 1.3 vs. 29.6 ± 1.1 mM, not significant (ns)], DT recipients achieved lower posttransplant BG levels and better rates of normoglycemia than control recipients (11.0 ± 1.9 vs. 19.1 ± 1.4 mM, p = 0.004) at 1 day posttransplant in diabetic recipients. When a suboptimal donor dose of 200 islets was transplanted, DT-induced moDC depletion resulted in normoglycemia in 78% compared to 25% of control recipients (p = 0.03). As well as amelioration of graft dysfunction in the immediate peritransplant period, prolonged DT administration (15 days posttransplant) resulted in improved graft survival (21 vs. 11 days, p = 0.005). moDCs impair early graft function post-allogeneic islet transplantation. moDC depletion may allow for improved early graft function, permit transplantation with lower islet masses, and enhance graft survival.
Collapse
Affiliation(s)
- Kevin V. Chow
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Nephrology, The Royal Melbourne Hospital, Parkville, Australia
| | - Emma M. Carrington
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Yifan Zhan
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| | - Andrew M. Lew
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
- Department of Microbiology and Immunology, University of Melbourne, Parkville, Australia
| | - Robyn M. Sutherland
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Australia
| |
Collapse
|
19
|
Heterogeneity, functional specialization and differentiation of monocyte‐derived dendritic cells. Immunol Cell Biol 2016; 95:244-251. [DOI: 10.1038/icb.2016.104] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 10/12/2016] [Accepted: 10/13/2016] [Indexed: 02/07/2023]
|