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Petit M, Weber-Delacroix E, Lanthiez F, Barthélémy S, Guillou N, Firpion M, Bonduelle O, Hume DA, Combadière C, Boissonnas A. Visualizing the spatial organization of monocytes, interstitial macrophages, and tissue-specific macrophages in situ. Cell Rep 2024; 43:114847. [PMID: 39395172 DOI: 10.1016/j.celrep.2024.114847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 08/03/2024] [Accepted: 09/23/2024] [Indexed: 10/14/2024] Open
Abstract
Tissue-resident mononuclear phagocytes (MPs) are an abundant cell population whose localization in situ reflects their identity. To enable assessment of their heterogeneity, we developed the red/green/blue (RGB)-Mac mouse based upon combinations of Cx3cr1 and Csf1r reporter transgenes, providing a complete visualization of their spatial organization in situ. 3D-multi-photon imaging for spatial mapping and spectral cytometry employing the three markers in combination distinguished tissue-associated monocytes, tissue-specific macrophages, and three subsets of connective-tissue-associated MPs, including CCR2+ monocyte-derived cell, CX3CR1+, and FOLR2+ interstitial subsets, associated with distinct sub-anatomic territories. These populations were selectively reduced by blockade of CSF1, CSF2, CCR2, and CX3CR1 and efficiently reconstitute their spatial distribution after transient myelo-ablation, suggesting an autonomous regulatory environment. Our findings emphasize the organization of the MP compartment at the sub-anatomic level under steady-state conditions, thereby providing a holistic understanding of their relative heterogeneity across different tissues.
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Affiliation(s)
- Maxime Petit
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Eléonore Weber-Delacroix
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - François Lanthiez
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Sandrine Barthélémy
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Noëlline Guillou
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Marina Firpion
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Olivia Bonduelle
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - David A Hume
- Mater Research Institute-University of Queensland, Translational Research Institute, Brisbane, QLD, Australia
| | - Christophe Combadière
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France
| | - Alexandre Boissonnas
- Sorbonne Université ́, Inserm U1135, CNRS ERL 8255, Centre d'Immunologie et des Maladies Infectieuses (CIMI-Paris), Paris, France.
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2
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Guelfi S, Hodivala-Dilke K, Bergers G. Targeting the tumour vasculature: from vessel destruction to promotion. Nat Rev Cancer 2024; 24:655-675. [PMID: 39210063 DOI: 10.1038/s41568-024-00736-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/25/2024] [Indexed: 09/04/2024]
Abstract
As angiogenesis was recognized as a core hallmark of cancer growth and survival, several strategies have been implemented to target the tumour vasculature. Yet to date, attempts have rarely been so diverse, ranging from vessel growth inhibition and destruction to vessel normalization, reprogramming and vessel growth promotion. Some of these strategies, combined with standard of care, have translated into improved cancer therapies, but their successes are constrained to certain cancer types. This Review provides an overview of these vascular targeting approaches and puts them into context based on our subsequent improved understanding of the tumour vasculature as an integral part of the tumour microenvironment with which it is functionally interlinked. This new knowledge has already led to dual targeting of the vascular and immune cell compartments and sets the scene for future investigations of possible alternative approaches that consider the vascular link with other tumour microenvironment components for improved cancer therapy.
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Affiliation(s)
- Sophie Guelfi
- Department of Oncology, VIB-KU Leuven Center for Cancer Biology and KU Leuven, Leuven, Belgium
| | - Kairbaan Hodivala-Dilke
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, UK.
| | - Gabriele Bergers
- Department of Oncology, VIB-KU Leuven Center for Cancer Biology and KU Leuven, Leuven, Belgium.
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3
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Zhu W, Qiong D, Changzhi X, Meiyu J, Hui L. Macrophage polarization regulation shed lights on immunotherapy for CaOx kidney stone disease. Biomed Pharmacother 2024; 179:117336. [PMID: 39180792 DOI: 10.1016/j.biopha.2024.117336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 08/09/2024] [Accepted: 08/21/2024] [Indexed: 08/27/2024] Open
Abstract
Kidney stone disease (KSD) is a major public health concern associated with high morbidity and recurrence, places a significant burden on the health care system worldwide. Calcium oxalate (CaOx) alone or a mixture of CaOx and calcium phosphate stones accounting for more than 80 % of cases. However, beyond surgical removal, the prevention and reduction of recurrence of CaOx kidney stones have always been a challenge. Given that macrophages are traditional innate immune cells that play critical roles in the clearance of pathogens and the maintenance of tissue homeostasis, which have gained more and more interests in nephrolithiasis. Several studies recently clearly demonstrated that M2-macrophage could reduce the renal calcium oxalate (CaOx) crystal acumination, and provide premise insights and therapeutic options for KSD by modulating the macrophage phenotypes. However, the mechanism of macrophage-polarization regulation and that effects on kidney stone prevention and treatments are far from clear. Here, we comprehensively reviewed the literatures related to cytokines, epigenetic modifications and metabolic reprograming of macrophage in CaOx kidney stone disease, aimed to provide better understandings on macrophage polarization regulation as well as its potential clinical applications in CaOx kidney stone disease treatments and prevention.
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Affiliation(s)
- Wang Zhu
- Department of Urology, The People's Hospital of Longhua, Shenzhen 518109, Guangdong, China.
| | - Deng Qiong
- Department of Urology, The People's Hospital of Longhua, Shenzhen 518109, Guangdong, China
| | - Xu Changzhi
- Department of Laboratory Medicine, Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Jin Meiyu
- Department of Urology, The People's Hospital of Longhua, Shenzhen 518109, Guangdong, China
| | - Liang Hui
- Department of Urology, The People's Hospital of Longhua, Shenzhen 518109, Guangdong, China.
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4
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Ma H, Zhu M, Chen M, Li X, Feng X. The role of macrophage plasticity in neurodegenerative diseases. Biomark Res 2024; 12:81. [PMID: 39135084 PMCID: PMC11321226 DOI: 10.1186/s40364-024-00624-7] [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: 04/28/2024] [Accepted: 07/22/2024] [Indexed: 08/15/2024] Open
Abstract
Tissue-resident macrophages and recruited macrophages play pivotal roles in innate immunity and the maintenance of brain homeostasis. Investigating the involvement of these macrophage populations in eliciting pathological changes associated with neurodegenerative diseases has been a focal point of research. Dysregulated states of macrophages can compromise clearance mechanisms for pathological proteins such as amyloid-β (Aβ) in Alzheimer's disease (AD) and TDP-43 in Amyotrophic lateral sclerosis (ALS). Additionally, recent evidence suggests that abnormalities in the peripheral clearance of pathological proteins are implicated in the pathogenesis and progression of neurodegenerative diseases. Furthermore, numerous genome-wide association studies have linked genetic risk factors, which alter the functionality of various immune cells, to the accumulation of pathological proteins. This review aims to unravel the intricacies of macrophage biology in both homeostatic conditions and neurodegenerative disorders. To this end, we initially provide an overview of the modifications in receptor and gene expression observed in diverse macrophage subsets throughout development. Subsequently, we outlined the roles of resident macrophages and recruited macrophages in neurodegenerative diseases and the progress of targeted therapy. Finally, we describe the latest advances in macrophage imaging methods and measurement of inflammation, which may provide information and related treatment strategies that hold promise for informing the design of future investigations and therapeutic interventions.
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Affiliation(s)
- Hongyue Ma
- Department of Neurology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China
| | - Mingxia Zhu
- Department of Neurology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China
| | - Mengjie Chen
- Department of Neurology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China
| | - Xiuli Li
- Department of Neurology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China
| | - Xinhong Feng
- Department of Neurology, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, Beijing, 102218, China.
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5
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Rodrigo MB, Kurts C. Kidney macrophages keep the stones rolling. Kidney Int 2024; 106:178-180. [PMID: 38825324 DOI: 10.1016/j.kint.2024.03.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/20/2024] [Indexed: 06/04/2024]
Affiliation(s)
- Maria B Rodrigo
- Institute of Molecular Medicine and Experimental Immunology (IMMEI), University Medical Center of the Rheinische Friedrich-Wilhelms-University, Bonn, Germany.
| | - Christian Kurts
- Institute of Molecular Medicine and Experimental Immunology (IMMEI), University Medical Center of the Rheinische Friedrich-Wilhelms-University, Bonn, Germany.
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Sung CYW, Hayase N, Yuen PST, Lee J, Fernandez K, Hu X, Cheng H, Star RA, Warchol ME, Cunningham LL. Macrophage depletion protects against cisplatin-induced ototoxicity and nephrotoxicity. SCIENCE ADVANCES 2024; 10:eadk9878. [PMID: 39047106 PMCID: PMC11268410 DOI: 10.1126/sciadv.adk9878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 06/18/2024] [Indexed: 07/27/2024]
Abstract
Cisplatin is a widely used anticancer drug with notable side effects including ototoxicity and nephrotoxicity. Macrophages, the major resident immune cells in the cochlea and kidney, are important drivers of both inflammatory and tissue repair responses. To investigate the roles of macrophages in cisplatin-induced toxicities, we used PLX3397, a U.S. Food and Drug Administration-approved inhibitor of the colony-stimulating factor 1 receptor, to eliminate tissue-resident macrophages. Mice treated with cisplatin alone had considerable hearing loss (ototoxicity) and kidney injury (nephrotoxicity). Macrophage ablation resulted in significantly reduced hearing loss and had greater outer hair cell survival. Macrophage ablation also protected against cisplatin-induced nephrotoxicity, as evidenced by markedly reduced tubular injury and fibrosis. Mechanistically, our data suggest that the protective effect of macrophage ablation against cisplatin-induced ototoxicity and nephrotoxicity is mediated by reduced platinum accumulation in both the inner ear and the kidney. Together, our data indicate that ablation of tissue-resident macrophages represents an important strategy for mitigating cisplatin-induced ototoxicity and nephrotoxicity.
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Affiliation(s)
- Cathy Yea Won Sung
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, MD, USA
| | - Naoki Hayase
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD, USA
| | - Peter S. T. Yuen
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD, USA
| | - John Lee
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, MD, USA
| | - Katharine Fernandez
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, MD, USA
| | - Xuzhen Hu
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD, USA
| | - Hui Cheng
- Bioinformatics and Biostatistics Collaboration Core, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, MD, USA
| | - Robert A. Star
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, MD, USA
| | - Mark E. Warchol
- Department of Otolaryngology, School of Medicine, Washington University, Saint Louis, MO, USA
| | - Lisa L. Cunningham
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, MD, USA
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Obi Y, Raimann JG, Kalantar-Zadeh K, Murea M. Residual Kidney Function in Hemodialysis: Its Importance and Contribution to Improved Patient Outcomes. Toxins (Basel) 2024; 16:298. [PMID: 39057938 PMCID: PMC11281084 DOI: 10.3390/toxins16070298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/27/2024] [Accepted: 06/11/2024] [Indexed: 07/28/2024] Open
Abstract
Individuals afflicted with advanced kidney dysfunction who require dialysis for medical management exhibit different degrees of native kidney function, called residual kidney function (RKF), ranging from nil to appreciable levels. The primary focus of this manuscript is to delve into the concept of RKF, a pivotal yet under-represented topic in nephrology. To begin, we unpack the definition and intrinsic nature of RKF. We then juxtapose the efficiency of RKF against that of hemodialysis in preserving homeostatic equilibrium and facilitating physiological functions. Given the complex interplay of RKF and overall patient health, we shed light on the extent of its influence on patient outcomes, particularly in those living with advanced kidney dysfunction and on dialysis. This manuscript subsequently presents methodologies and measures to assess RKF, concluding with the potential benefits of targeted interventions aimed at preserving RKF.
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Affiliation(s)
- Yoshitsugu Obi
- Division of Nephrology, Department of Medicine, The University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Jochen G. Raimann
- Renal Research Institute, New York, NY 10065, USA;
- Katz School of Science and Health, Yeshiva University, New York, NY 10033, USA
| | - Kamyar Kalantar-Zadeh
- Tibor Rubin Veterans Affairs Long Beach Healthcare System, Long Beach, CA 90822, USA;
- The Lundquist Institute at Harbor, UCLA Medical Center, Torrance, CA 90502, USA
- Division of Nephrology, Hypertension, and Kidney Transplantation, University of California Irvine, Orange, CA 92868, USA
| | - Mariana Murea
- Department of Internal Medicine, Section on Nephrology, Wake Forest University School of Medicine, Winston-Salem, NC 27101, USA
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Uzzo M, Kronbichler A, Alberici F, Bajema I. Nonlupus Full House Nephropathy: A Systematic Review. Clin J Am Soc Nephrol 2024; 19:743-754. [PMID: 38527995 PMCID: PMC11168831 DOI: 10.2215/cjn.0000000000000438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 03/19/2024] [Indexed: 03/27/2024]
Abstract
Key Points Nonlupus full house nephropathy is a rare, complex entity: confusion arises by the low-quality evidence and the lack of consensus on nomenclature. This systematic review supports that systemic lupus erythematosus and nonlupus full house nephropathy are distinct clinical entities, with comparable outcomes. The identification of three pathogenetic categories provides further clues for a shared clinical and diagnostic approach to the disease. Background The presence of a full house pattern at immunofluorescence on kidney biopsy in a patient without clinical and laboratory features of systemic lupus erythematosus (SLE) has led to the descriptive term nonlupus full house nephropathy. This systematic review and meta-analysis focus on nonlupus full house nephropathy nomenclature, clinical findings, and outcomes. Methods In a reiterative process, all identified terms for nonlupus full house nephropathy and other medical subject headings terms were searched in PubMed. Out of 344 results, 57 records published between 1982 and 2022 were included in the analysis. Clinical data of single patients from different reports were collected. Patients were classified into three pathogenetic categories, which were compared according to baseline characteristics, treatments, and outcomes. Results Out of the 57 records, 61% were case reports. Nonlupus full house nephropathy was addressed with 17 different names. We identified 148 patients: 75 (51%) were men; median age 35 (23–58) years. Serum creatinine and proteinuria at onset were 1.4 (0.8–2.5) mg/dl and 5.7 (2.7–8.8) g/d. About half of patients achieved complete response. A causative agent was identified in 51 patients (44%), mainly infectious (41%). Secondary nonlupus full house nephropathy was mostly nonrelapsing with worse kidney function at onset compared with idiopathic disease (P = 0.001). Among the 57 patients (50%) with idiopathic nonlupus full house nephropathy, complete response was comparable between patients treated with immunosuppression and supportive therapy; however, proteinuria and creatinine at onset were higher in patients treated with immunosuppression (P = 0.09 and P = 0.07). The remaining 7 patients (6%) developed SLE after a median follow-up of 5.0 (1.9–9.0) years. Conclusions Our data support that SLE and nonlupus full house nephropathy are distinct clinical entities, with comparable outcomes. A small subset of patients develops SLE during follow-up. Nonlupus full house nephropathy is addressed by many different names in the literature. The identification of three pathogenetic categories provides further clues for the management of the disease.
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Affiliation(s)
- Martina Uzzo
- Department of Medicine and Surgery, University of Milano-Bicocca and ASST Monza, Monza, Italy
- Department of Pathology and Medical Biology, University Medical Center, University of Groningen, Groningen, The Netherlands
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
| | - Federico Alberici
- Department of Medical and Surgical Specialties, Radiological Sciences and Public Health, University of Brescia, Brescia, Italy
| | - Ingeborg Bajema
- Department of Pathology and Medical Biology, University Medical Center, University of Groningen, Groningen, The Netherlands
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Zhao J, Andreev I, Silva HM. Resident tissue macrophages: Key coordinators of tissue homeostasis beyond immunity. Sci Immunol 2024; 9:eadd1967. [PMID: 38608039 DOI: 10.1126/sciimmunol.add1967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 03/18/2024] [Indexed: 04/14/2024]
Abstract
Resident tissue macrophages (RTMs) encompass a highly diverse set of cells abundantly present in every tissue and organ. RTMs are recognized as central players in innate immune responses, and more recently their importance beyond host defense has started to be highlighted. Despite sharing a universal name and several canonical markers, RTMs perform remarkably specialized activities tailored to sustain critical homeostatic functions of the organs they reside in. These cells can mediate neuronal communication, participate in metabolic pathways, and secrete growth factors. In this Review, we summarize how the division of labor among different RTM subsets helps support tissue homeostasis. We discuss how the local microenvironment influences the development of RTMs, the molecular processes they support, and how dysregulation of RTMs can lead to disease. Last, we highlight both the similarities and tissue-specific distinctions of key RTM subsets, aiming to coalesce recent classifications and perspectives into a unified view.
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Affiliation(s)
- Jia Zhao
- Laboratory of Immunophysiology, Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Ilya Andreev
- Laboratory of Immunophysiology, Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Hernandez Moura Silva
- Laboratory of Immunophysiology, Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA
- Howard Hughes Medical Institute, Cambridge, MA, USA
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Wang Y, Chen X, Tang N, Guo M, Ai D. Boosting Clear Cell Renal Carcinoma-Specific Drug Discovery Using a Deep Learning Algorithm and Single-Cell Analysis. Int J Mol Sci 2024; 25:4134. [PMID: 38612943 PMCID: PMC11012314 DOI: 10.3390/ijms25074134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 03/26/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Clear cell renal carcinoma (ccRCC), the most common subtype of renal cell carcinoma, has the high heterogeneity of a highly complex tumor microenvironment. Existing clinical intervention strategies, such as target therapy and immunotherapy, have failed to achieve good therapeutic effects. In this article, single-cell transcriptome sequencing (scRNA-seq) data from six patients downloaded from the GEO database were adopted to describe the tumor microenvironment (TME) of ccRCC, including its T cells, tumor-associated macrophages (TAMs), endothelial cells (ECs), and cancer-associated fibroblasts (CAFs). Based on the differential typing of the TME, we identified tumor cell-specific regulatory programs that are mediated by three key transcription factors (TFs), whilst the TF EPAS1/HIF-2α was identified via drug virtual screening through our analysis of ccRCC's protein structure. Then, a combined deep graph neural network and machine learning algorithm were used to select anti-ccRCC compounds from bioactive compound libraries, including the FDA-approved drug library, natural product library, and human endogenous metabolite compound library. Finally, five compounds were obtained, including two FDA-approved drugs (flufenamic acid and fludarabine), one endogenous metabolite, one immunology/inflammation-related compound, and one inhibitor of DNA methyltransferase (N4-methylcytidine, a cytosine nucleoside analogue that, like zebularine, has the mechanism of inhibiting DNA methyltransferase). Based on the tumor microenvironment characteristics of ccRCC, five ccRCC-specific compounds were identified, which would give direction of the clinical treatment for ccRCC patients.
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Affiliation(s)
| | | | | | | | - Dongmei Ai
- School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, China; (Y.W.); (X.C.); (N.T.); (M.G.)
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Chew C, Brand OJ, Yamamura T, Lawless C, Morais MRPT, Zeef L, Lin IH, Howell G, Lui S, Lausecker F, Jagger C, Shaw TN, Krishnan S, McClure FA, Bridgeman H, Wemyss K, Konkel JE, Hussell T, Lennon R. Kidney resident macrophages have distinct subsets and multifunctional roles. Matrix Biol 2024; 127:23-37. [PMID: 38331051 DOI: 10.1016/j.matbio.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND The kidney contains distinct glomerular and tubulointerstitial compartments with diverse cell types and extracellular matrix components. The role of immune cells in glomerular environment is crucial for dampening inflammation and maintaining homeostasis. Macrophages are innate immune cells that are influenced by their tissue microenvironment. However, the multifunctional role of kidney macrophages remains unclear. METHODS Flow and imaging cytometry were used to determine the relative expression of CD81 and CX3CR1 (C-X3-C motif chemokine receptor 1) in kidney macrophages. Monocyte replenishment was assessed in Cx3cr1CreER X R26-yfp-reporter and shielded chimeric mice. Bulk RNA-sequencing and mass spectrometry-based proteomics were performed on isolated kidney macrophages from wild type and Col4a5-/- (Alport) mice. RNAscope was used to visualize transcripts and macrophage purity in bulk RNA assessed by CIBERSORTx analyses. RESULTS In wild type mice we identified three distinct kidney macrophage subsets using CD81 and CX3CR1 and these subsets showed dependence on monocyte replenishment. In addition to their immune function, bulk RNA-sequencing of macrophages showed enrichment of biological processes associated with extracellular matrix. Proteomics identified collagen IV and laminins in kidney macrophages from wild type mice whilst other extracellular matrix proteins including cathepsins, ANXA2 and LAMP2 were enriched in Col4a5-/- (Alport) mice. A subset of kidney macrophages co-expressed matrix and macrophage transcripts. CONCLUSIONS We identified CD81 and CX3CR1 positive kidney macrophage subsets with distinct dependence for monocyte replenishment. Multiomic analysis demonstrated that these cells have diverse functions that underscore the importance of macrophages in kidney health and disease.
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Affiliation(s)
- Christine Chew
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom; Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, United Kingdom
| | - Oliver J Brand
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Tomohiko Yamamura
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, United Kingdom
| | - Craig Lawless
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, United Kingdom
| | - Mychel Raony Paiva Teixeira Morais
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, United Kingdom
| | - Leo Zeef
- Bioinformatics Core Facility, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - I-Hsuan Lin
- Bioinformatics Core Facility, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Gareth Howell
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Sylvia Lui
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Franziska Lausecker
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, United Kingdom
| | - Christopher Jagger
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Tovah N Shaw
- Institute of Immunology and Infection Research, School of Biological Sciences, University of Edinburgh, Ashworth Laboratories, Edinburgh EH9 3FL, United Kingdom
| | - Siddharth Krishnan
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Flora A McClure
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Hayley Bridgeman
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Kelly Wemyss
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Joanne E Konkel
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom
| | - Tracy Hussell
- Lydia Becker Institute for Immunology and Inflammation, Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester M13 9PL, United Kingdom.
| | - Rachel Lennon
- Wellcome Centre for Cell-Matrix Research, Division of Cell-Matrix Biology and Regenerative Medicine, School of Biological Sciences, Faculty of Biology Medicine and Health, The University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9PT, United Kingdom; Department of Paediatric Nephrology, Royal Manchester Children's Hospital, Manchester University Hospitals NHS Foundation Trust, Manchester Academic Health Science Centre, Manchester M13 9WL, United Kingdom.
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12
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Deng Z, Loyher PL, Lazarov T, Li L, Shen Z, Bhinder B, Yang H, Zhong Y, Alberdi A, Massague J, Sun JC, Benezra R, Glass CK, Elemento O, Iacobuzio-Donahue CA, Geissmann F. The nuclear factor ID3 endows macrophages with a potent anti-tumour activity. Nature 2024; 626:864-873. [PMID: 38326607 PMCID: PMC10881399 DOI: 10.1038/s41586-023-06950-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 12/07/2023] [Indexed: 02/09/2024]
Abstract
Macrophage activation is controlled by a balance between activating and inhibitory receptors1-7, which protect normal tissues from excessive damage during infection8,9 but promote tumour growth and metastasis in cancer7,10. Here we report that the Kupffer cell lineage-determining factor ID3 controls this balance and selectively endows Kupffer cells with the ability to phagocytose live tumour cells and orchestrate the recruitment, proliferation and activation of natural killer and CD8 T lymphoid effector cells in the liver to restrict the growth of a variety of tumours. ID3 shifts the macrophage inhibitory/activating receptor balance to promote the phagocytic and lymphoid response, at least in part by buffering the binding of the transcription factors ELK1 and E2A at the SIRPA locus. Furthermore, loss- and gain-of-function experiments demonstrate that ID3 is sufficient to confer this potent anti-tumour activity to mouse bone-marrow-derived macrophages and human induced pluripotent stem-cell-derived macrophages. Expression of ID3 is therefore necessary and sufficient to endow macrophages with the ability to form an efficient anti-tumour niche, which could be harnessed for cell therapy in cancer.
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Affiliation(s)
- Zihou Deng
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Pierre-Louis Loyher
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Tomi Lazarov
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Li Li
- Graduate Center, City University of New York, New York, NY, USA
| | - Zeyang Shen
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA
- Department of Cellular and Molecular Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Bhavneet Bhinder
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell, New York, NY, USA
| | - Hairu Yang
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yi Zhong
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Araitz Alberdi
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joan Massague
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joseph C Sun
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Robert Benezra
- Cancer Biology and Genetics Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christopher K Glass
- Department of Bioengineering, University of California, San Diego, La Jolla, CA, USA
| | - Olivier Elemento
- Department of Physiology and Biophysics, Institute for Computational Biomedicine, Weill Cornell, New York, NY, USA
| | | | - Frederic Geissmann
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
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13
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He J, Cao Y, Zhu Q, Wang X, Cheng G, Wang Q, He R, Lu H, Weng Y, Mao G, Bao Y, Wang J, Liu X, Han F, Shi P, Shen XZ. Renal macrophages monitor and remove particles from urine to prevent tubule obstruction. Immunity 2024; 57:106-123.e7. [PMID: 38159573 DOI: 10.1016/j.immuni.2023.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 07/17/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
When the filtrate of the glomerulus flows through the renal tubular system, various microscopic sediment particles, including mineral crystals, are generated. Dislodging these particles is critical to ensuring the free flow of filtrate, whereas failure to remove them will result in kidney stone formation and obstruction. However, the underlying mechanism for the clearance is unclear. Here, using high-resolution microscopy, we found that the juxtatubular macrophages in the renal medulla constitutively formed transepithelial protrusions and "sampled" urine contents. They efficiently sequestered and phagocytosed intraluminal sediment particles and occasionally transmigrated to the tubule lumen to escort the excretion of urine particles. Mice with decreased renal macrophage numbers were prone to developing various intratubular sediments, including kidney stones. Mechanistically, the transepithelial behaviors of medulla macrophages required integrin β1-mediated ligation to the tubular epithelium. These findings indicate that medulla macrophages sample urine content and remove intratubular particles to keep the tubular system unobstructed.
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Affiliation(s)
- Jian He
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yangyang Cao
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qian Zhu
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xinge Wang
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Guo Cheng
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Qiang Wang
- Department of Laboratory Medicine, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Rukun He
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Haoran Lu
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, Haining, Zhejiang, China
| | - Yuancheng Weng
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Genxiang Mao
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yizhong Bao
- Zhejiang Provincial Key Lab of Geriatrics, Department of Geriatrics, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing Wang
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoli Liu
- Department of Neurology, Affiliated Zhejiang Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Fei Han
- Kidney Disease Center, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Peng Shi
- Institute of Translational Medicine, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
| | - Xiao Z Shen
- Department of Physiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
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14
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Saavedra PHV, Perry JSA. Kidney macrophages tap the stream. Immunity 2024; 57:3-5. [PMID: 38198853 DOI: 10.1016/j.immuni.2023.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/11/2023] [Accepted: 12/11/2023] [Indexed: 01/12/2024]
Abstract
Tissue-resident macrophages are essential for maintaining organismal homeostasis, but the precise mechanisms that macrophages use to perform this function are not fully understood. In this issue of Immunity, He et al. demonstrate that renal macrophages surveil and sample urine particles, ensuring optimal collecting duct flow and preventing kidney stone development.
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Affiliation(s)
- Pedro H V Saavedra
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Justin S A Perry
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Medical College, Cornell University, New York, NY, USA.
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15
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Wassmer SC, de Koning-Ward TF, Grau GER, Pai S. Unravelling mysteries at the perivascular space: a new rationale for cerebral malaria pathogenesis. Trends Parasitol 2024; 40:28-44. [PMID: 38065791 PMCID: PMC11072469 DOI: 10.1016/j.pt.2023.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/13/2023] [Accepted: 11/13/2023] [Indexed: 01/06/2024]
Abstract
Cerebral malaria (CM) is a severe neurological complication caused by Plasmodium falciparum parasites; it is characterized by the sequestration of infected red blood cells within the cerebral microvasculature. New findings, combined with a better understanding of the central nervous system (CNS) barriers, have provided greater insight into the players and events involved in CM, including site-specific T cell responses in the human brain. Here, we review the updated roles of innate and adaptive immune responses in CM, with a focus on the role of the perivascular macrophage-endothelium unit in antigen presentation, in the vascular and perivascular compartments. We suggest that these events may be pivotal in the development of CM.
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Affiliation(s)
- Samuel C Wassmer
- Department of Infection Biology, London School of Hygiene & Tropical Medicine, London, UK.
| | - Tania F de Koning-Ward
- School of Medicine, Deakin University, Waurn Ponds, Victoria, Australia; Institute of Mental and Physical Health and Clinical Translation, Deakin University, Geelong, Victoria, Australia
| | - Georges E R Grau
- Vascular Immunology Unit, Discipline of Pathology, School of Medical Sciences, University of Sydney, Camperdown, New South Wales, Australia
| | - Saparna Pai
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Queensland, Australia.
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16
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Hublitz KW, Stamatiades EG. Elucidating Immune Monitoring of Tissue-Resident Macrophages by Intravital Microscopy. Methods Mol Biol 2024; 2713:337-346. [PMID: 37639134 DOI: 10.1007/978-1-0716-3437-0_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2023]
Abstract
Intravital microscopy is an invaluable tool to study in real time the dynamic behavior of leukocytes in vivo. We describe herein a simple protocol for time-lapse imaging of tissue-resident macrophages in intact kidney, liver, and spleen in live mice. This method can be used in any commercially available inverted confocal microscope, doesn't require expensive lasers or optics, exhibits minimal organ perturbation, photo bleaching, or phototoxicity, and, hence, it enables the study of tissue-resident macrophages in situ and in vivo under steady state and inflammation.
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Affiliation(s)
- Karolin W Hublitz
- Institute of Microbiology, Infectious Diseases and Immunology (I-MIDI), Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany
| | - Efstathios G Stamatiades
- Institute of Microbiology, Infectious Diseases and Immunology (I-MIDI), Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany.
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17
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Aiassa LV, Battaglia G, Rizzello L. The multivalency game ruling the biology of immunity. BIOPHYSICS REVIEWS 2023; 4:041306. [PMID: 38505426 PMCID: PMC10914136 DOI: 10.1063/5.0166165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/27/2023] [Indexed: 03/21/2024]
Abstract
Macrophages play a crucial role in our immune system, preserving tissue health and defending against harmful pathogens. This article examines the diversity of macrophages influenced by tissue-specific functions and developmental origins, both in normal and disease conditions. Understanding the spectrum of macrophage activation states, especially in pathological situations where they contribute significantly to disease progression, is essential to develop targeted therapies effectively. These states are characterized by unique receptor compositions and phenotypes, but they share commonalities. Traditional drugs that target individual entities are often insufficient. A promising approach involves using multivalent systems adorned with multiple ligands to selectively target specific macrophage populations based on their phenotype. Achieving this requires constructing supramolecular structures, typically at the nanoscale. This review explores the theoretical foundation of engineered multivalent nanosystems, dissecting the key parameters governing specific interactions. The goal is to design targeting systems based on distinct cell phenotypes, providing a pragmatic approach to navigating macrophage heterogeneity's complexities for more effective therapeutic interventions.
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18
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Sung CYW, Hayase N, Yuen PS, Lee J, Fernandez K, Hu X, Cheng H, Star RA, Warchol ME, Cunningham LL. Macrophage Depletion Protects Against Cisplatin-Induced Ototoxicity and Nephrotoxicity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.16.567274. [PMID: 38014097 PMCID: PMC10680818 DOI: 10.1101/2023.11.16.567274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
Cisplatin is a widely used and highly effective anti-cancer drug with significant side effects including ototoxicity and nephrotoxicity. Macrophages, the major resident immune cells in the cochlea and kidney, are important drivers of both inflammatory and tissue repair responses. To investigate the roles of macrophages in cisplatin-induced ototoxicity and nephrotoxicity, we used PLX3397, an FDA-approved inhibitor of the colony-stimulating factor 1 receptor (CSF1R), to eliminate tissue-resident macrophages during the course of cisplatin administration. Mice treated with cisplatin alone (cisplatin/vehicle) had significant hearing loss (ototoxicity) as well as kidney injury (nephrotoxicity). Macrophage ablation using PLX3397 resulted in significantly reduced hearing loss measured by auditory brainstem responses (ABR) and distortion-product otoacoustic emissions (DPOAE). Sensory hair cells in the cochlea were protected against cisplatin-induced death in mice treated with PLX3397. Macrophage ablation also protected against cisplatin-induced nephrotoxicity, as evidenced by markedly reduced tubular injury and fibrosis as well as reduced plasma blood urea nitrogen (BUN) and neutrophil gelatinase-associated lipocalin (NGAL) levels. Mechanistically, our data suggest that the protective effect of macrophage ablation against cisplatin-induced ototoxicity and nephrotoxicity is mediated by reduced platinum accumulation in both the inner ear and the kidney. Together our data indicate that ablation of tissue-resident macrophages represents a novel strategy for mitigating cisplatin-induced ototoxicity and nephrotoxicity.
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Affiliation(s)
- Cathy Yea Won Sung
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, Maryland, USA
| | - Naoki Hayase
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA
| | - Peter S.T. Yuen
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA
| | - John Lee
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, Maryland, USA
| | - Katharine Fernandez
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, Maryland, USA
| | - Xuzhen Hu
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA
| | - Hui Cheng
- Bioinformatics and Biostatistics Collaboration Core, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, Maryland, USA
| | - Robert A. Star
- Renal Diagnostics and Therapeutics Unit, National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), NIH, Bethesda, Maryland, USA
| | - Mark E. Warchol
- Washington University, Department of Otolaryngology, School of Medicine, Saint Louis, MO
| | - Lisa L. Cunningham
- Laboratory of Hearing Biology and Therapeutics, National Institute on Deafness and Other Communication Disorders (NIDCD), NIH, Bethesda, Maryland, USA
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19
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Fatima N, Ali R, Faisal T, Kulkarni K, Patel S, Hussain T. Macrophage angiotensin AT 2 receptor activation is protective against early phases of LPS-induced acute kidney injury. Am J Physiol Renal Physiol 2023; 325:F552-F563. [PMID: 37615049 PMCID: PMC10878726 DOI: 10.1152/ajprenal.00177.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 07/27/2023] [Accepted: 08/17/2023] [Indexed: 08/25/2023] Open
Abstract
Lipopolysaccharide (LPS)-induced acute kidney injury (AKI) is characterized by inflammation and infiltration of immune cells, mainly neutrophils and macrophages, and results in sudden renal dysfunction. Previously, we have reported the anti-inflammatory and renoprotective role of the angiotensin II type 2 receptor (AT2R), expressed on kidney tubular cells and immune cells, in LPS-induced AKI. Moreover, in vitro studies revealed macrophage AT2R activation shifts the cells to the anti-inflammatory M2 subtype. However, the protective role of the macrophage AT2R in a model of AKI is unknown. The present study addressed this question by adoptive transfer of bone marrow-derived macrophages (BMDMs) in systemic macrophage-depleted mice. We acquired significant systemic macrophage depletion by two doses of liposomal clodronate (CLD), and the mice were repopulated with BMDMs (CD11b+F4/80+, double positive) primed with AT2R agonist C21 (CLD + MacC21 + LPS) or vehicle (CLD + Mac + LPS) in vitro for 60 min, followed by LPS (5 mg/kg body wt ip) challenge. We observed a gradual increase in the CD11b+ cells at 2 and 24 h after the LPS challenge. However, kidney CD11b+ cells in the CLD + Mac + LPS group were elevated compared with the CLD + MacC21 + LPS group at 2 h after the LPS challenge. The level of inflammatory cytokine (tumor necrosis factor-α) was elevated at 2 h, which was reduced significantly in CLD + MacC21 + LPS-treated animals. Also, CLD + MacC21 + LPS-treated animals had elevated plasma and renal IL-10, indicating an anti-inflammatory role of C21-treated BMDMs. Renal functional injury in CLD + MacC21 + LPS-treated animals was partially improved. Collectively, the data demonstrate that BMDM AT2R stimulation results in anti-inflammation and partial renoprotection against early stages of LPS-induced AKI.NEW & NOTEWORTHY Endotoxin such as lipopolysaccharide (LPS) induces acute kidney injury (AKI), which is a risk factor for and often leads to chronic kidney diseases. The present study revealed that bone marrow-derived macrophage activation of the angiotensin II type 2 receptor (AT2R) contributes to the anti-inflammation and partial renoprotection against early stages of LPS-induced AKI. Since AT2R is an emerging anti-inflammatory and organ-protective target, this study advances our understanding of AT2R's anti-inflammatory mechanisms associated with renoprotection.
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Affiliation(s)
- Naureen Fatima
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States
| | - Riyasat Ali
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States
| | - Tahmid Faisal
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States
| | - Kalyani Kulkarni
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States
| | - Sanket Patel
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States
| | - Tahir Hussain
- Department of Pharmacological and Pharmaceutical Sciences, College of Pharmacy, University of Houston, Houston, Texas, United States
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20
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Gao Y, Tian X, Zhang X, Milebe Nkoua GD, Chen F, Liu Y, Chai Y. The roles of tissue-resident macrophages in sepsis-associated organ dysfunction. Heliyon 2023; 9:e21391. [PMID: 38027963 PMCID: PMC10643296 DOI: 10.1016/j.heliyon.2023.e21391] [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: 06/26/2023] [Revised: 10/13/2023] [Accepted: 10/20/2023] [Indexed: 12/01/2023] Open
Abstract
Sepsis, a syndrome caused by a dysregulated host response to infection and characterized by life-threatening organ dysfunction, particularly septic shock and sepsis-associated organ dysfunction (SAOD), is a medical emergency associated with high morbidity, high mortality, and long-term sequelae. Tissue-resident macrophages (TRMs) are a subpopulation of macrophages derived primarily from yolk sac progenitors and fetal liver during embryogenesis, located primarily in non-lymphoid tissues in adulthood, capable of local self-renewal independent of hematopoiesis, and developmentally and functionally restricted to the non-lymphoid organs in which they reside. TRMs are the first line of defense against life-threatening conditions such as sepsis, tumor growth, traumatic-associated organ injury, and surgical-associated injury. In the context of sepsis, TRMs can be considered as angels or demons involved in organ injury. Our proposal is that sepsis, septic shock, and SAOD can be attenuated by modulating TRMs in different organs. This review summarizes the pathophysiological mechanisms of TRMs in different organs or tissues involved in the development and progression of sepsis.
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Affiliation(s)
- Yulei Gao
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, P. R. China
- Department of Emergency Medicine, China-Congo Friendship Hospital, Brazzaville, 999059, P. R. Congo
| | - Xin Tian
- Department of Medical Research, Beijing Qiansong Technology Development Company, Beijing, 100193, P. R. China
- Department of Medical Research, Sen Sho Ka Gi Company, Inba-gun, Chiba, 285-0905, Japan
| | - Xiang Zhang
- Department of Emergency Medicine, Rizhao People's Hospital of Shandong Province, Rizhao, 276825, P. R. China
| | | | - Fang Chen
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, P. R. China
| | - Yancun Liu
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, P. R. China
| | - Yanfen Chai
- Department of Emergency Medicine, Tianjin Medical University General Hospital, Tianjin, 300052, P. R. China
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21
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Ben-Chetrit N, Niu X, Sotelo J, Swett AD, Rajasekhar VK, Jiao MS, Stewart CM, Bhardwaj P, Kottapalli S, Ganesan S, Loyher PL, Potenski C, Hannuna A, Brown KA, Iyengar NM, Giri DD, Lowe SW, Healey JH, Geissmann F, Sagi I, Joyce JA, Landau DA. Breast Cancer Macrophage Heterogeneity and Self-renewal are Determined by Spatial Localization. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.24.563749. [PMID: 37961223 PMCID: PMC10634790 DOI: 10.1101/2023.10.24.563749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Tumor-infiltrating macrophages support critical steps in tumor progression, and their accumulation in the tumor microenvironment (TME) is associated with adverse outcomes and therapeutic resistance across human cancers. In the TME, macrophages adopt diverse phenotypic alterations, giving rise to heterogeneous immune activation states and induction of cell cycle. While the transcriptional profiles of these activation states are well-annotated across human cancers, the underlying signals that regulate macrophage heterogeneity and accumulation remain incompletely understood. Here, we leveraged a novel ex vivo organotypic TME (oTME) model of breast cancer, in vivo murine models, and human samples to map the determinants of functional heterogeneity of TME macrophages. We identified a subset of F4/80highSca-1+ self-renewing macrophages maintained by type-I interferon (IFN) signaling and requiring physical contact with cancer-associated fibroblasts. We discovered that the contact-dependent self-renewal of TME macrophages is mediated via Notch4, and its inhibition abrogated tumor growth of breast and ovarian carcinomas in vivo, as well as lung dissemination in a PDX model of triple-negative breast cancer (TNBC). Through spatial multi-omic profiling of protein markers and transcriptomes, we found that the localization of macrophages further dictates functionally distinct but reversible phenotypes, regardless of their ontogeny. Whereas immune-stimulatory macrophages (CD11C+CD86+) populated the tumor epithelial nests, the stroma-associated macrophages (SAMs) were proliferative, immunosuppressive (Sca-1+CD206+PD-L1+), resistant to CSF-1R depletion, and associated with worse patient outcomes. Notably, following cessation of CSF-1R depletion, macrophages rebounded primarily to the SAM phenotype, which was associated with accelerated growth of mammary tumors. Our work reveals the spatial determinants of macrophage heterogeneity in breast cancer and highlights the disruption of macrophage self-renewal as a potential new therapeutic strategy.
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Affiliation(s)
- Nir Ben-Chetrit
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
- These authors contributed equally
| | - Xiang Niu
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
- These authors contributed equally
- Present address: Genentech, Inc., South San Francisco, CA, USA
| | - Jesus Sotelo
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
| | - Ariel D. Swett
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
| | - Vinagolu K. Rajasekhar
- Orthopedic Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Maria S. Jiao
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Caitlin M. Stewart
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
| | - Priya Bhardwaj
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Sanjay Kottapalli
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
| | - Saravanan Ganesan
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
| | - Pierre-Louis Loyher
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Catherine Potenski
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
| | - Assaf Hannuna
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Kristy A. Brown
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Neil M. Iyengar
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Dilip D. Giri
- Department of Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Scott W. Lowe
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA
| | - John H. Healey
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Frederic Geissmann
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Irit Sagi
- Department of Biological Regulation, Weizmann Institute of Science, Rehovot, Israel
| | - Johanna A. Joyce
- Department of Oncology and Ludwig Institute for Cancer Research, University of Lausanne, Switzerland
| | - Dan A. Landau
- Sandra and Edward Meyer Cancer Center, Weill Cornell Medicine, New York, NY, USA
- New York Genome Center, New York, NY, USA
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22
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Pekayvaz K, Gold C, Hoseinpour P, Engel A, Martinez-Navarro A, Eivers L, Coletti R, Joppich M, Dionísio F, Kaiser R, Tomas L, Janjic A, Knott M, Mehari F, Polewka V, Kirschner M, Boda A, Nicolai L, Schulz H, Titova A, Kilani B, Lorenz M, Fingerle-Rowson G, Bucala R, Enard W, Zimmer R, Weber C, Libby P, Schulz C, Massberg S, Stark K. Mural cell-derived chemokines provide a protective niche to safeguard vascular macrophages and limit chronic inflammation. Immunity 2023; 56:2325-2341.e15. [PMID: 37652021 PMCID: PMC10588993 DOI: 10.1016/j.immuni.2023.08.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 06/23/2023] [Accepted: 08/03/2023] [Indexed: 09/02/2023]
Abstract
Maladaptive, non-resolving inflammation contributes to chronic inflammatory diseases such as atherosclerosis. Because macrophages remove necrotic cells, defective macrophage programs can promote chronic inflammation with persistent tissue injury. Here, we investigated the mechanisms sustaining vascular macrophages. Intravital imaging revealed a spatiotemporal macrophage niche across vascular beds alongside mural cells (MCs)-pericytes and smooth muscle cells. Single-cell transcriptomics, co-culture, and genetic deletion experiments revealed MC-derived expression of the chemokines CCL2 and MIF, which actively preserved macrophage survival and their homeostatic functions. In atherosclerosis, this positioned macrophages in viable plaque areas, away from the necrotic core, and maintained a homeostatic macrophage phenotype. Disruption of this MC-macrophage unit via MC-specific deletion of these chemokines triggered detrimental macrophage relocalizing, exacerbated plaque necrosis, inflammation, and atheroprogression. In line, CCL2 inhibition at advanced stages of atherosclerosis showed detrimental effects. This work presents a MC-driven safeguard toward maintaining the homeostatic vascular macrophage niche.
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Affiliation(s)
- Kami Pekayvaz
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.
| | - Christoph Gold
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Parandis Hoseinpour
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Anouk Engel
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | | | - Luke Eivers
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Raffaele Coletti
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Markus Joppich
- Department of Informatics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Flávio Dionísio
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Rainer Kaiser
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Lukas Tomas
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Aleksandar Janjic
- Anthropology and Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Munich, Germany
| | - Maximilian Knott
- Institute of Pathology, Ludwig-Maximilian University Munich, Munich, Germany
| | - Fitsumbirhan Mehari
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Vivien Polewka
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Megan Kirschner
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Annegret Boda
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Leo Nicolai
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Heiko Schulz
- Institute of Pathology, Ludwig-Maximilian University Munich, Munich, Germany
| | - Anna Titova
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Badr Kilani
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | - Michael Lorenz
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany
| | | | - Richard Bucala
- Department of Internal Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Wolfgang Enard
- Anthropology and Human Genomics, Faculty of Biology, Ludwig-Maximilians University, Munich, Germany
| | - Ralf Zimmer
- Department of Informatics, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Christian Weber
- DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany; Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximillian-Universität (LMU) München, Munich Cluster for Systems Neurology (SyNergy), Munich, Germany; Department of Biochemistry, Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, the Netherlands
| | - Peter Libby
- Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, MA, USA; Harvard Medical School, Boston, MA, USA
| | - Christian Schulz
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Steffen Massberg
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany
| | - Konstantin Stark
- Medizinische Klinik und Poliklinik I, LMU University Hospital, LMU Munich, Munich, Germany; DZHK (German Centre for Cardiovascular Research), Partner Site Munich Heart Alliance, Munich, Germany.
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23
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Dolade N, Rayego-Mateos S, Garcia-Carrasco A, Guerin M, Martín-Ventura JL, Ruiz-Ortega M, Tharaux PL, Valdivielso JM. B- and T-lymphocyte attenuator could be a new player in accelerated atherosclerosis associated with chronic kidney disease. Clin Sci (Lond) 2023; 137:1409-1429. [PMID: 37655751 DOI: 10.1042/cs20230399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 07/31/2023] [Accepted: 09/01/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND In chronic kidney disease (CKD), cardiovascular morbi-mortality is higher than in general population. Atherosclerotic cardiovascular disease is accelerated in CKD, but specific CKD-related risk factors for atherosclerosis are unknown. METHODS CKD patients from the NEFRONA study were used. We performed mRNA array from blood of patients free from atheroma plaque at baseline, with (n=10) and without (n=10) de novo atherosclerotic plaque development 2 years later. Selected mRNA candidates were validated in a bigger sample (n=148). Validated candidates were investigated in vivo in an experimental model of CKD-accelerated atherosclerosis, and in vitro in murine macrophages. RESULTS mRNA array analysis showed 92 up-regulated and 67 down-regulated mRNAs in samples from CKD patients with de novo plaque development. The functional analysis pointed to a paramount role of the immune response. The validation in a bigger sample confirmed that B- and T-lymphocyte co-inhibitory molecule (BTLA) down-regulation was associated with de novo plaque presence after 2 years. However, BTLA down-regulation was not found to be associated with atherosclerotic progression in patients with plaque already present at baseline. In a model of CKD-accelerated atherosclerosis, mRNA and protein expression levels of BTLA were significantly decreased in blood samples and atheroma plaques. Plaques from animals with CKD were bigger, had more infiltration of inflammatory cells, higher expression of IL6 and IL17 and less presence of collagen than plaques from control animals. Incubation of macrophages with rat uremic serum decreased BTLA expression. CONCLUSIONS BTLA could be a potential biomarker or therapeutic target for atherosclerosis incidence in CKD patients.
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Affiliation(s)
- Nuria Dolade
- Red de Investigación Renal (REDinREN), Ricords2040, Spain
- Vascular and Renal Translational Research Group, Institut de Recerca Biomèdica de Lleida IRBLleida, Lleida 25198, Spain
| | - Sandra Rayego-Mateos
- Red de Investigación Renal (REDinREN), Ricords2040, Spain
- Vascular and Renal Translational Research Group, Institut de Recerca Biomèdica de Lleida IRBLleida, Lleida 25198, Spain
| | - Alicia Garcia-Carrasco
- Red de Investigación Renal (REDinREN), Ricords2040, Spain
- Vascular and Renal Translational Research Group, Institut de Recerca Biomèdica de Lleida IRBLleida, Lleida 25198, Spain
| | - Maryse Guerin
- INSERM UMR_S 1166 - ICAN. Faculté de Médecine Pitié-Salpêtrière: 75013 Paris, France
| | - Jose-Luis Martín-Ventura
- Vascular Research Laboratory, IIS-Fundacion Jimenez Diaz, Universidad Autonoma, Avda Reyes Catolicos 2, 28040 Madrid, Spain and CIBER de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Marta Ruiz-Ortega
- Cellular and Molecular Biology in Renal and Vascular Pathology Laboratory, IIS-Fundación Jiménez Díaz-Universidad Autónoma Madrid, Madrid, Spain
| | - Pierre-Louis Tharaux
- Paris Cardiovascular research Centre (PARCC), Institut National de la Santé et de la Recherche Médicale, INSERM, Université Paris Cité, Paris, France
| | - Jose Manuel Valdivielso
- Red de Investigación Renal (REDinREN), Ricords2040, Spain
- Vascular and Renal Translational Research Group, Institut de Recerca Biomèdica de Lleida IRBLleida, Lleida 25198, Spain
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24
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Chen S, Zhang L, Huang M, Liang Y, Wang Y. A tumor-associated endothelial signature score model in immunotherapy and prognosis across pan-cancers. Front Pharmacol 2023; 14:1190660. [PMID: 37719845 PMCID: PMC10500301 DOI: 10.3389/fphar.2023.1190660] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 08/14/2023] [Indexed: 09/19/2023] Open
Abstract
Background: The tumor-associated endothelial cell (TAE) component plays a vital role in tumor immunity. However, systematic tumor-associated endothelial-related gene assessment models for predicting cancer immunotherapy (CIT) responses and survival across human cancers have not been explored. Herein, we investigated a TAE gene risk model to predict CIT responses and patient survival in a pan-cancer analysis. Methods: We analyzed publicly available datasets of tumor samples with gene expression and clinical information, including gastric cancer, metastatic urothelial cancer, metastatic melanoma, non-small cell lung cancer, primary bladder cancer, and renal cell carcinoma. We further established a binary classification model to predict CIT responses using the least absolute shrinkage and selection operator (LASSO) computational algorithm. Results: The model demonstrated a high predictive accuracy in both training and validation cohorts. The response rate of the high score group to immunotherapy in the training cohort was significantly higher than that of the low score group, with CIT response rates of 51% and 27%, respectively. The survival analysis showed that the prognosis of the high score group was significantly better than that of the low score group (all p < 0·001). Tumor-associated endothelial gene signature scores positively correlated with immune checkpoint genes, suggesting that immune checkpoint inhibitors may benefit patients in the high score group. The analysis of TAE scores across 33 human cancers revealed that the TAE model could reflect immune cell infiltration and predict the survival of cancer patients. Conclusion: The TAE signature model could represent a CIT response prediction model with a prognostic value in multiple cancer types.
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Affiliation(s)
- Shuzhao Chen
- Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Limei Zhang
- Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Mayan Huang
- Department of Pathology, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yang Liang
- Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
| | - Yun Wang
- Department of Hematologic Oncology, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, Guangdong, China
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25
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Lazarov T, Juarez-Carreño S, Cox N, Geissmann F. Physiology and diseases of tissue-resident macrophages. Nature 2023; 618:698-707. [PMID: 37344646 PMCID: PMC10649266 DOI: 10.1038/s41586-023-06002-x] [Citation(s) in RCA: 70] [Impact Index Per Article: 70.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 03/23/2023] [Indexed: 06/23/2023]
Abstract
Embryo-derived tissue-resident macrophages are the first representatives of the haematopoietic lineage to emerge in metazoans. In mammals, resident macrophages originate from early yolk sac progenitors and are specified into tissue-specific subsets during organogenesis-establishing stable spatial and functional relationships with specialized tissue cells-and persist in adults. Resident macrophages are an integral part of tissues together with specialized cells: for instance, microglia reside with neurons in brain, osteoclasts reside with osteoblasts in bone, and fat-associated macrophages reside with white adipocytes in adipose tissue. This ancillary cell type, which is developmentally and functionally distinct from haematopoietic stem cell and monocyte-derived macrophages, senses and integrates local and systemic information to provide specialized tissue cells with the growth factors, nutrient recycling and waste removal that are critical for tissue growth, homeostasis and repair. Resident macrophages contribute to organogenesis, promote tissue regeneration following damage and contribute to tissue metabolism and defence against infectious disease. A correlate is that genetic or environment-driven resident macrophage dysfunction is a cause of degenerative, metabolic and possibly inflammatory and tumoural diseases. In this Review, we aim to provide a conceptual outline of our current understanding of macrophage physiology and its importance in human diseases, which may inform and serve the design of future studies.
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Affiliation(s)
- Tomi Lazarov
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA
| | - Sergio Juarez-Carreño
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nehemiah Cox
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Frederic Geissmann
- Immunology Program, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY, USA.
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26
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Mohan C, Zhang T, Putterman C. Pathogenic cellular and molecular mediators in lupus nephritis. Nat Rev Nephrol 2023:10.1038/s41581-023-00722-z. [PMID: 37225921 DOI: 10.1038/s41581-023-00722-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2023] [Indexed: 05/26/2023]
Abstract
Kidney involvement in patients with systemic lupus erythematosus - lupus nephritis (LN) - is one of the most important and common clinical manifestations of this disease and occurs in 40-60% of patients. Current treatment regimens achieve a complete kidney response in only a minority of affected individuals, and 10-15% of patients with LN develop kidney failure, with its attendant morbidity and considerable prognostic implications. Moreover, the medications most often used to treat LN - corticosteroids in combination with immunosuppressive or cytotoxic drugs - are associated with substantial side effects. Advances in proteomics, flow cytometry and RNA sequencing have led to important new insights into immune cells, molecules and mechanistic pathways that are instrumental in the pathogenesis of LN. These insights, together with a renewed focus on the study of human LN kidney tissue, suggest new therapeutic targets that are already being tested in lupus animal models and early-phase clinical trials and, as such, are hoped to eventually lead to meaningful improvements in the care of patients with systemic lupus erythematosus-associated kidney disease.
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Affiliation(s)
- Chandra Mohan
- Department of Biomedical Engineering, University of Houston, Houston, TX, USA.
| | - Ting Zhang
- Division of Rheumatology, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Chaim Putterman
- Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel.
- Division of Rheumatology and Department of Microbiology & Immunology, Albert Einstein College of Medicine, Bronx, NY, USA.
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27
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Lindquist JA, Bernhardt A, Reichardt C, Sauter E, Brandt S, Rana R, Lindenmeyer MT, Philipsen L, Isermann B, Zhu C, Mertens PR. Cold Shock Domain Protein DbpA Orchestrates Tubular Cell Damage and Interstitial Fibrosis in Inflammatory Kidney Disease. Cells 2023; 12:1426. [PMID: 37408260 DOI: 10.3390/cells12101426] [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: 04/14/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 07/07/2023] Open
Abstract
DNA-binding protein A (DbpA) belongs to the Y-box family of cold shock domain proteins that exert transcriptional and translational activities in the cell via their ability to bind and regulate mRNA. To investigate the role of DbpA in kidney disease, we utilized the murine unilateral ureter obstruction (UUO) model, which recapitulates many features of obstructive nephropathy seen in humans. We observed that DbpA protein expression is induced within the renal interstitium following disease induction. Compared with wild-type animals, obstructed kidneys from Ybx3-deficient mice are protected from tissue injury, with a significant reduction in the number of infiltrating immune cells as well as in extracellular matrix deposition. RNAseq data from UUO kidneys show that Ybx3 is expressed by activated fibroblasts, which reside within the renal interstitium. Our data support a role for DbpA in orchestrating renal fibrosis and suggest that strategies targeting DbpA may be a therapeutic option to slow disease progression.
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Affiliation(s)
- Jonathan A Lindquist
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
| | - Anja Bernhardt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
| | - Charlotte Reichardt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
| | - Eva Sauter
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
| | - Sabine Brandt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
| | - Rajiv Rana
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig University, 04103 Leipzig, Germany
| | - Maja T Lindenmeyer
- Department of Medicine, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
- Hamburg Center for Kidney Health (HCKH), University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Lars Philipsen
- Institute of Molecular and Clinical Immunology, Otto-von-Guericke-University, 39120 Magdeburg, Germany
| | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Leipzig University, 04103 Leipzig, Germany
| | - Cheng Zhu
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
- Department of Nephrology, Sir Run Run Shaw Hospital, Zhejiang University, School of Medicine, Hangzhou 310058, China
| | - Peter R Mertens
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke-University Magdeburg, 39120 Magdeburg, Germany
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28
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Li L, Tian Y. The role of metabolic reprogramming of tumor-associated macrophages in shaping the immunosuppressive tumor microenvironment. Biomed Pharmacother 2023; 161:114504. [PMID: 37002579 DOI: 10.1016/j.biopha.2023.114504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/04/2023] [Accepted: 03/07/2023] [Indexed: 03/15/2023] Open
Abstract
Macrophages are potent immune effector cells in innate immunity and exert dual-effects in the tumor microenvironment (TME). Tumor-associated macrophages (TAMs) make up a significant portion of TME immune cells. Similar to M1/M2 macrophages, TAMs are also highly plastic, and their functions are regulated by cytokines, chemokines and other factors in the TME. The metabolic changes in TAMs are significantly associated with polarization towards a protumour or antitumour phenotype. The metabolites generated via TAM metabolic reprogramming in turn promote tumor progression and immune tolerance. In this review, we explore the metabolic reprogramming of TAMs in terms of energy, amino acid and fatty acid metabolism and the potential roles of these changes in immune suppression.
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Affiliation(s)
- Lunxu Li
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yu Tian
- Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, China.
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29
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Mason WJ, Vasilopoulou E. The Pathophysiological Role of Thymosin β4 in the Kidney Glomerulus. Int J Mol Sci 2023; 24:ijms24097684. [PMID: 37175390 PMCID: PMC10177875 DOI: 10.3390/ijms24097684] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Diseases affecting the glomerulus, the filtration unit of the kidney, are a major cause of chronic kidney disease. Glomerular disease is characterised by injury of glomerular cells and is often accompanied by an inflammatory response that drives disease progression. New strategies are needed to slow the progression to end-stage kidney disease, which requires dialysis or transplantation. Thymosin β4 (Tβ4), an endogenous peptide that sequesters G-actin, has shown potent anti-inflammatory function in experimental models of heart, kidney, liver, lung, and eye injury. In this review, we discuss the role of endogenous and exogenous Tβ4 in glomerular disease progression and the current understanding of the underlying mechanisms.
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Affiliation(s)
- William J Mason
- Developmental Biology and Cancer Programme, UCL Great Ormond Street Institute of Child Health, London WC1N 1EH, UK
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30
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Burns KD, Douvris A. Protecting the kidney in sepsis: resident macrophages to the rescue. Kidney Int 2023; 103:461-463. [PMID: 36822750 DOI: 10.1016/j.kint.2022.11.012] [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: 11/11/2022] [Accepted: 11/15/2022] [Indexed: 02/24/2023]
Abstract
Kidney resident macrophages exert pro-inflammatory or reparative effects in experimental acute kidney injury, but their role in sepsis is unclear. In a mouse model of sepsis, Privratsky et al. show that kidney resident F4/80hi macrophages protect against kidney injury by expressing interleukin-1 receptor antagonist, which blocks interleukin-6 production selectively from endothelial cells. Discovery of this novel autocrine loop enhances opportunities for targeted therapies to diminish kidney injury during sepsis.
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Affiliation(s)
- Kevin D Burns
- Division of Nephrology, Department of Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada.
| | - Adrianna Douvris
- Division of Nephrology, Department of Medicine, Kidney Research Centre, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada; Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Ontario, Canada
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31
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Privratsky JR, Ide S, Chen Y, Kitai H, Ren J, Fradin H, Lu X, Souma T, Crowley SD. A macrophage-endothelial immunoregulatory axis ameliorates septic acute kidney injury. Kidney Int 2023; 103:514-528. [PMID: 36334787 PMCID: PMC9974788 DOI: 10.1016/j.kint.2022.10.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 10/12/2022] [Accepted: 10/21/2022] [Indexed: 11/11/2022]
Abstract
The most common cause of acute kidney injury (AKI) in critically ill patients is sepsis. Kidney macrophages consist of both F4/80hi and CD11bhi cells. The role of macrophage subpopulations in septic AKI pathogenesis remains unclear. As F4/80hi macrophages are reported to contribute to immunomodulation following injury, we hypothesized that selective depletion of F4/80hi macrophages would worsen septic AKI. F4/80hi macrophages were depleted via diphtheria toxin injection in CD11cCre(+)/CX3CR1dtr/wt (F4/80 MKO mice) compared to CD11cCre(-)/CX3CR1dtr/wt (F4/80 MWT) mice. F4/80 MWT and F4/80 MKO mice were subjected to sham or cecal ligation and puncture to induce sepsis. Compared to F4/80 MWT mice, F4/80 MKO mice displayed worsened septic AKI at 24 hours as measured by serum creatinine and histologic injury scoring. Kidneys from F4/80 MKO mice elaborated higher kidney interleukin-6 levels. Mechanistically, single cell RNA sequencing identified a macrophage-endothelial cell immunoregulatory axis that underlies interleukin-6 expression. F4/80hi macrophages expressed interleukin-1 receptor antagonist and limited interleukin-6 expression in endothelial cells. In turn, anti-interleukin-6 therapy ameliorated septic AKI in F4/80 MKO mice. Thus, F4/80hi macrophages express interleukin-1 receptor antagonist and constrain interleukin-6 generation from endothelial cells to limit septic AKI, representing a targetable cellular crosstalk in septic AKI. These findings are particularly relevant owing to the efficacy of anti-interleukin-6 therapies during COVID-19 infection, a disease associated with high rates of AKI and endothelial dysfunction.
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Affiliation(s)
- Jamie R Privratsky
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA; Division of Critical Care Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Shintaro Ide
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Yanting Chen
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Hiroki Kitai
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Jiafa Ren
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Helene Fradin
- Duke Center for Genomic and Computational Biology, Duke University Medical Center, Durham, North Carolina, USA
| | - Xiaohan Lu
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Tomokazu Souma
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Steven D Crowley
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA; Durham VA Medical Center, Durham, North Carolina, USA.
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The Response of Macrophages in Sepsis-Induced Acute Kidney Injury. J Clin Med 2023; 12:jcm12031101. [PMID: 36769749 PMCID: PMC9917612 DOI: 10.3390/jcm12031101] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 01/23/2023] [Accepted: 01/29/2023] [Indexed: 02/04/2023] Open
Abstract
Sepsis-induced acute kidney injury (SAKI) is common in critically ill patients and often leads to poor prognosis. At present, the pathogenesis of SAKI has not been fully clarified, and there is no effective treatment. Macrophages are immune cells that play an important role in the pathogenesis of SAKI. The phenotype and role of macrophages can vary from early to later stages of SAKI. Elucidating the role of macrophages in SAKI will be beneficial to its diagnosis and treatment. This article reviews past studies describing the role of macrophages in SAKI, with the aim of identifying novel therapeutic targets.
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Patino E, Bhatia D, Vance SZ, Antypiuk A, Uni R, Campbell C, Castillo CG, Jaouni S, Vinchi F, Choi ME, Akchurin O. Iron therapy mitigates chronic kidney disease progression by regulating intracellular iron status of kidney macrophages. JCI Insight 2023; 8:e159235. [PMID: 36394951 PMCID: PMC9870080 DOI: 10.1172/jci.insight.159235] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 11/16/2022] [Indexed: 11/18/2022] Open
Abstract
Systemic iron metabolism is disrupted in chronic kidney disease (CKD). However, little is known about local kidney iron homeostasis and its role in kidney fibrosis. Kidney-specific effects of iron therapy in CKD also remain elusive. Here, we elucidate the role of macrophage iron status in kidney fibrosis and demonstrate that it is a potential therapeutic target. In CKD, kidney macrophages exhibited depletion of labile iron pool (LIP) and induction of transferrin receptor 1, indicating intracellular iron deficiency. Low LIP in kidney macrophages was associated with their defective antioxidant response and proinflammatory polarization. Repletion of LIP in kidney macrophages through knockout of ferritin heavy chain (Fth1) reduced oxidative stress and mitigated fibrosis. Similar to Fth1 knockout, iron dextran therapy, through replenishing macrophage LIP, reduced oxidative stress, decreased the production of proinflammatory cytokines, and alleviated kidney fibrosis. Interestingly, iron markedly decreased TGF-β expression and suppressed TGF-β-driven fibrotic response of macrophages. Iron dextran therapy and FtH suppression had an additive protective effect against fibrosis. Adoptive transfer of iron-loaded macrophages alleviated kidney fibrosis, validating the protective effect of iron-replete macrophages in CKD. Thus, targeting intracellular iron deficiency of kidney macrophages in CKD can serve as a therapeutic opportunity to mitigate disease progression.
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Affiliation(s)
- Edwin Patino
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Divya Bhatia
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Steven Z. Vance
- Iron Research Laboratory, Lindsley Kimball Research Institute, New York Blood Center, New York, New York, USA
| | - Ada Antypiuk
- Iron Research Laboratory, Lindsley Kimball Research Institute, New York Blood Center, New York, New York, USA
| | - Rie Uni
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Chantalle Campbell
- Division of Pediatric Nephrology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
| | - Carlo G. Castillo
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- College of Agriculture and Life Sciences, Cornell University, Ithaca, New York, USA
| | - Shahd Jaouni
- Division of Pediatric Nephrology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
- Weill Cornell Medicine-Qatar, Cornell University, Doha, Qatar
| | - Francesca Vinchi
- Iron Research Laboratory, Lindsley Kimball Research Institute, New York Blood Center, New York, New York, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York, USA
| | - Mary E. Choi
- Division of Nephrology and Hypertension, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
| | - Oleh Akchurin
- Division of Pediatric Nephrology, Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
- New York-Presbyterian Hospital, New York, New York, USA
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34
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Harsini S, Rezaei N. Autoimmune diseases. Clin Immunol 2023. [DOI: 10.1016/b978-0-12-818006-8.00001-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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35
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Ciarambino T, Crispino P, Giordano M. Gender and Renal Insufficiency: Opportunities for Their Therapeutic Management? Cells 2022; 11:cells11233820. [PMID: 36497080 PMCID: PMC9740491 DOI: 10.3390/cells11233820] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/18/2022] [Accepted: 11/24/2022] [Indexed: 11/30/2022] Open
Abstract
Acute kidney injury (AKI) is a major clinical problem associated with increased morbidity and mortality. Despite intensive research, the clinical outcome remains poor, and apart from supportive therapy, no other specific therapy exists. Furthermore, acute kidney injury increases the risk of developing chronic kidney disease (CKD) and end-stage renal disease. Acute tubular injury accounts for the most common intrinsic cause of AKI. The main site of injury is the proximal tubule due to its high workload and energy demand. Upon injury, an intratubular subpopulation of proximal epithelial cells proliferates and restores the tubular integrity. Nevertheless, despite its strong regenerative capacity, the kidney does not always achieve its former integrity and function and incomplete recovery leads to persistent and progressive CKD. Clinical and experimental data demonstrate sexual differences in renal anatomy, physiology, and susceptibility to renal diseases including but not limited to ischemia-reperfusion injury. Some data suggest the protective role of female sex hormones, whereas others highlight the detrimental effect of male hormones in renal ischemia-reperfusion injury. Although the important role of sex hormones is evident, the exact underlying mechanisms remain to be elucidated. This review focuses on collecting the current knowledge about sexual dimorphism in renal injury and opportunities for therapeutic manipulation, with a focus on resident renal progenitor stem cells as potential novel therapeutic strategies.
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Affiliation(s)
- Tiziana Ciarambino
- Internal Medicine Department, Hospital of Marcianise, ASL Caserta, 81031 Caserta, Italy
- Correspondence: (T.C.); (M.G.)
| | - Pietro Crispino
- Emergency Department, Hospital of Latina, ASL Latina, 04100 Latina, Italy
| | - Mauro Giordano
- Department of Advanced Medical and Surgical Science, University of Campania, Luigi Vanvitelli, 80138 Naples, Italy
- Correspondence: (T.C.); (M.G.)
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36
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Richoz N, Tuong ZK, Loudon KW, Patiño-Martínez E, Ferdinand JR, Portet A, Bashant KR, Thevenon E, Rucci F, Hoyler T, Junt T, Kaplan MJ, Siegel RM, Clatworthy MR. Distinct pathogenic roles for resident and monocyte-derived macrophages in lupus nephritis. JCI Insight 2022; 7:159751. [PMID: 36345939 PMCID: PMC9675473 DOI: 10.1172/jci.insight.159751] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 09/06/2022] [Indexed: 11/09/2022] Open
Abstract
Lupus nephritis is a serious complication of systemic lupus erythematosus, mediated by IgG immune complex (IC) deposition in kidneys, with limited treatment options. Kidney macrophages are critical tissue sentinels that express IgG-binding Fcγ receptors (FcγRs), with previous studies identifying prenatally seeded resident macrophages as major IC responders. Using single-cell transcriptomic and spatial analyses in murine and human lupus nephritis, we sought to understand macrophage heterogeneity and subset-specific contributions in disease. In lupus nephritis, the cell fate trajectories of tissue-resident (TrMac) and monocyte-derived (MoMac) kidney macrophages were perturbed, with disease-associated transcriptional states indicating distinct pathogenic roles for TrMac and MoMac subsets. Lupus nephritis-associated MoMac subsets showed marked induction of FcγR response genes, avidly internalized circulating ICs, and presented IC-opsonized antigen. In contrast, lupus nephritis-associated TrMac subsets demonstrated limited IC uptake, but expressed monocyte chemoattractants, and their depletion attenuated monocyte recruitment to the kidney. TrMacs also produced B cell tissue niche factors, suggesting a role in supporting autoantibody-producing lymphoid aggregates. Extensive similarities were observed with human kidney macrophages, revealing cross-species transcriptional disruption in lupus nephritis. Overall, our study suggests a division of labor in the kidney macrophage response in lupus nephritis, with treatment implications - TrMacs orchestrate leukocyte recruitment while MoMacs take up and present IC antigen.
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Affiliation(s)
- Nathan Richoz
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom.,Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom.,National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Zewen K. Tuong
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom.,Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom.,Cellular Genetics programme, Wellcome Sanger Institute, Hinxton, United Kingdom
| | - Kevin W. Loudon
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom.,Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom
| | - Eduardo Patiño-Martínez
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - John R. Ferdinand
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom.,Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom
| | - Anaïs Portet
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom.,Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom
| | - Kathleen R. Bashant
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | | | - Francesca Rucci
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Thomas Hoyler
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Tobias Junt
- Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Mariana J. Kaplan
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA
| | - Richard M. Siegel
- National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, Maryland, USA.,Novartis Institutes for BioMedical Research, Basel, Switzerland
| | - Menna R. Clatworthy
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Medical Research Council Laboratory of Molecular Biology, Cambridge, United Kingdom.,Cambridge Institute of Therapeutic Immunology and Infectious Diseases, Department of Medicine, University of Cambridge School of Clinical Medicine, United Kingdom.,Cellular Genetics programme, Wellcome Sanger Institute, Hinxton, United Kingdom
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37
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He A, Sarwar A, Thole LML, Siegle J, Sattler A, Ashraf MI, Proß V, Stahl C, Dornieden T, Bergmann Y, Ritschl PV, Ebner S, Hublitz KW, Stamatiades EG, Bülow RD, Boor P, Kotsch K. Renal inflamm-aging provokes intra-graft inflammation following experimental kidney transplantation. Am J Transplant 2022; 22:2529-2547. [PMID: 35851547 DOI: 10.1111/ajt.17154] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 06/14/2022] [Accepted: 07/14/2022] [Indexed: 01/25/2023]
Abstract
Donor age is a major risk factor for allograft outcome in kidney transplantation. The underlying cellular mechanisms and the recipient's immune response within an aged allograft have yet not been analyzed. A comprehensive immunophenotyping of naïve and transplanted young versus aged kidneys revealed that naïve aged murine kidneys harbor significantly higher frequencies of effector/memory T cells, whereas regulatory T cells were reduced. Aged kidney-derived CD8+ T cells produced more IFNγ than their young counterparts. Senescent renal CD8+ T and NK cells upregulated the cytotoxicity receptor NKG2D and the enrichment of memory-like CD49a+ CXCR6+ NK cells was documented in aged naïve kidneys. In the C57BL/6 to BALB/c kidney transplantation model, recipient-derived T cells infiltrating an aged graft produced significantly more IFNγ, granzyme B and perforin on day 7 post-transplantation, indicating an enhanced inflammatory, cytotoxic response towards the graft. Pre-treatment of aged kidney donors with the senolytic drug ABT-263 changed the recipient-derived effector molecule profile to significantly reduced levels of IFNγ and IL-10 compared to controls. Graft function after ABT-263 pre-treatment was significantly improved 28 days post kidney transplantation. In conclusion, renal senescence also occurs at the immunological level (inflamm-aging) and aged organs provoke an altered recipient-dominated immune response in the graft.
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Affiliation(s)
- An He
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Attia Sarwar
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Linda Marie Laura Thole
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Janine Siegle
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Arne Sattler
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Muhammad Imtiaz Ashraf
- Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Vanessa Proß
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Carolin Stahl
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Theresa Dornieden
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Yasmin Bergmann
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Paul Viktor Ritschl
- Department of Surgery, Campus Charité Mitte, Campus Virchow-Klinikum, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Susanne Ebner
- Department of Visceral, Transplant and Thoracic Surgery, Medical University of Innsbruck, Innsbruck, Austria
| | - Karolin Wiebke Hublitz
- Institute of Microbiology, Infectious Diseases and Immunology, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Efstathios Gregorios Stamatiades
- Institute of Microbiology, Infectious Diseases and Immunology, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Roman David Bülow
- Institute of Pathology & Department of Nephrology, University Clinic of RWTH Aachen, Aachen, Germany
| | - Peter Boor
- Institute of Pathology & Department of Nephrology, University Clinic of RWTH Aachen, Aachen, Germany
| | - Katja Kotsch
- Department of General- and Visceral Surgery, Campus Benjamin Franklin, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
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Dangi A, Husain I, Jordan CZ, Yu S, Natesh N, Shen X, Kwun J, Luo X. Blocking CCL8-CCR8-Mediated Early Allograft Inflammation Improves Kidney Transplant Function. J Am Soc Nephrol 2022; 33:1876-1890. [PMID: 35973731 PMCID: PMC9528333 DOI: 10.1681/asn.2022020139] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/27/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND In kidney transplantation, early allograft inflammation impairs long-term allograft function. However, precise mediators of early kidney allograft inflammation are unclear, making it challenging to design therapeutic interventions. METHODS We used an allogeneic murine kidney transplant model in which CD45.2 BALB/c kidneys were transplanted to CD45.1 C57BL/6 recipients. RESULTS Donor kidney resident macrophages within the allograft expanded rapidly in the first 3 days. During this period, they were also induced to express a high level of Ccl8, which, in turn, promoted recipient monocyte graft infiltration, their differentiation to resident macrophages, and subsequent expression of Ccl8. Enhanced graft infiltration of recipient CCR8+ T cells followed, including CD4, CD8, and γδ T cells. Consequently, blocking CCL8-CCR8 or depleting donor kidney resident macrophages significantly inhibits early allograft immune cell infiltration and promotes superior short-term allograft function. CONCLUSIONS Targeting the CCL8-CCR8 axis is a promising measure to reduce early kidney allograft inflammation.
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Affiliation(s)
- Anil Dangi
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Irma Husain
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Collin Z. Jordan
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
| | - Shuangjin Yu
- Division of Organ Transplantation, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Naveen Natesh
- Department of Biomedical Engineering, Duke University Pratt School of Engineering, Durham, North Carolina
| | - Xiling Shen
- Department of Biomedical Engineering, Duke University Pratt School of Engineering, Durham, North Carolina
- Terasaki Institute, Los Angeles, California
| | - Jean Kwun
- Department of Surgery, Duke University School of Medicine, Durham, North Carolina
- Duke Transplant Center, Duke University School of Medicine, Durham, North Carolina
| | - Xunrong Luo
- Division of Nephrology, Department of Medicine, Duke University School of Medicine, Durham, North Carolina
- Duke Transplant Center, Duke University School of Medicine, Durham, North Carolina
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Wang L, Wang Y, Bi J. In silico development and experimental validation of a novel 7-gene signature based on PI3K pathway-related genes in bladder cancer. Funct Integr Genomics 2022; 22:797-811. [PMID: 35896848 PMCID: PMC9550739 DOI: 10.1007/s10142-022-00884-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/11/2022] [Accepted: 07/11/2022] [Indexed: 11/04/2022]
Abstract
Although bladder cancer (BLCA) is the 10th most common tumor worldwide, particularly practical markers and prognostic models that might guide therapy are needed. We used a non-negative matrix factorization algorithm to classify PI3K pathway-related genes into molecular subtypes. A weighted gene co-expression network analysis (WGCNA) was generated to identify co-expression modules. Univariate Cox regression, least absolute shrinkage sum selection operator-Cox regression, and multivariate Cox regression were utilized to develop a prognostic score model. Kaplan-Meier analysis and receiver operating characteristics were utilized to measure the model's effectiveness. A nomogram was constructed to improve the predictive ability of the model based on clinical parameters and risk. Decision curve analysis (DCA) was used to evaluate the nomogram. To evaluate the immune microenvironment, an estimate algorithm was used. Drug sensitivity was identified using the R package "pRRophetic." UM-UC-3 cell line was used to measure the effect of CDK6 in Western blotting, proliferation assay, and 5-ethynyl-20-deoxyuridine assay. Based on PI3K pathway-related genes, The Cancer Genome Atlas (TCGA)-BLCA and GSE32894 patients were divided into two subtypes. Twenty-five co-expression modules were established using the WGCNA algorithm. A seven-gene signature (CDK6, EGFR, IGF1, ITGB7, PDGFRA, RPS6, and VWF) demonstrated robustness in TCGA and GSE32894 datasets. Expression levels of CDK6 and risk positively correlated with M2 macrophages and IgG. Cisplatin, gemcitabine, methotrexate, mitomycin C, paclitaxel, and vinblastine are sensitive to different groups based on the expression of CDK6 and risk. Functional experiments suggested that CDK6 promotes the proliferation of UM-UC-3 cells. We constructed a seven-gene prognostic signature as an effective marker to predict the outcomes of BLCA patients and guide individual treatment.
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Affiliation(s)
- Linhui Wang
- Department of Urology, China Medical University, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yutao Wang
- Department of Urology, China Medical University, The First Hospital of China Medical University, Shenyang, Liaoning, China
| | - Jianbin Bi
- Department of Urology, China Medical University, The First Hospital of China Medical University, Shenyang, Liaoning, China.
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40
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Lou H, Ling GS, Cao X. Autoantibodies in systemic lupus erythematosus: From immunopathology to therapeutic target. J Autoimmun 2022; 132:102861. [PMID: 35872103 DOI: 10.1016/j.jaut.2022.102861] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 06/26/2022] [Indexed: 11/26/2022]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by multiple organ inflammatory damage and wide spectrum of autoantibodies. The autoantibodies, especially anti-dsDNA and anti-Sm autoantibodies are highly specific to SLE, and participate in the immune complex formation and inflammatory damage on multiple end-organs such as kidney, skin, and central nervous system (CNS). However, the underlying mechanisms of autoantibody-induced tissue damage and systemic inflammation are still not fully understood. Single cell analysis of autoreactive B cells and monoclonal antibody screening from patients with active SLE has improved our understanding on the origin of autoreactive B cells and the antigen targets of the pathogenic autoantibodies. B cell depletion therapies have been widely studied in the clinics, but the development of more specific therapies against the pathogenic B cell subset and autoantibodies with improved efficacy and safety still remain a big challenge. A more comprehensive autoantibody profiling combined with functional characterization of autoantibodies in diseases development will shed new insights on the etiology and pathogenesis of SLE and guide a specific treatment to individual SLE patients.
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Affiliation(s)
- Hantao Lou
- Ludwig Institute of Cancer Research, University of Oxford, Oxford, OX3 7DR, UK; Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK.
| | - Guang Sheng Ling
- School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Xuetao Cao
- Chinese Academy for Medical Sciences Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, OX3 7FZ, UK; Nankai-Oxford International Advanced Institute, College of Life Sciences, Nankai University, Tianjin, 300071, China.
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41
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Mei X, Jin H, Zhao M, Lu Q. Association of Immune-Related Genetic and Epigenetic Alterations with Lupus Nephritis. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:286-296. [PMID: 36157263 PMCID: PMC9386430 DOI: 10.1159/000524937] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 05/02/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND The familial clustering phenomenon together with environmental influences indicates the presence of a genetic and epigenetic predisposition to systematic lupus erythematosus (SLE). Interestingly, regarding lupus nephritis (LN), the worst complication of SLE, mortality, and morbidity were not consistent with SLE in relation to sexuality and ethnicity. SUMMARY Genetic and epigenetic alterations in LN include genes and noncoding RNAs that are involved in antigen-presenting, complements, immune cell infiltration, interferon pathways, and so on. Once genetic or epigenetic change occurs alone or simultaneously, they will promote the formation of immune complexes with autoantibodies that target various autoantigens, which results in inflammatory cytokines and autoreactive immune cells colonizing renal tissues and contributing to LN. KEY MESSAGES Making additional checks for immunopathology-related heredity and epigenetic factors may lead to a more holistic perspective of LN.
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Affiliation(s)
- Xiaole Mei
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immunological Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Hui Jin
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Ming Zhao
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
| | - Qianjin Lu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Key Laboratory of Basic and Translational Research on Immunological Dermatology, Chinese Academy of Medical Sciences, Nanjing, China
- Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, China
- Research Unit of Key Technologies of Diagnosis and Treatment for Immune-related Skin Diseases, Chinese Academy of Medical Sciences, Changsha, China
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Hofherr A, Williams J, Gan LM, Söderberg M, Hansen PBL, Woollard KJ. Targeting inflammation for the treatment of Diabetic Kidney Disease: a five-compartment mechanistic model. BMC Nephrol 2022; 23:208. [PMID: 35698028 PMCID: PMC9190142 DOI: 10.1186/s12882-022-02794-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 04/20/2022] [Indexed: 12/25/2022] Open
Abstract
Diabetic kidney disease (DKD) is the leading cause of kidney failure worldwide. Mortality and morbidity associated with DKD are increasing with the global prevalence of type 2 diabetes. Chronic, sub-clinical, non-resolving inflammation contributes to the pathophysiology of renal and cardiovascular disease associated with diabetes. Inflammatory biomarkers correlate with poor renal outcomes and mortality in patients with DKD. Targeting chronic inflammation may therefore offer a route to novel therapeutics for DKD. However, the DKD patient population is highly heterogeneous, with varying etiology, presentation and disease progression. This heterogeneity is a challenge for clinical trials of novel anti-inflammatory therapies. Here, we present a conceptual model of how chronic inflammation affects kidney function in five compartments: immune cell recruitment and activation; filtration; resorption and secretion; extracellular matrix regulation; and perfusion. We believe that the rigorous alignment of pathophysiological insights, appropriate animal models and pathology-specific biomarkers may facilitate a mechanism-based shift from recruiting ‘all comers’ with DKD to stratification of patients based on the principal compartments of inflammatory disease activity.
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Affiliation(s)
- Alexis Hofherr
- Research and Early Clinical Development, Cardiovascular, Renal and Metabolism, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden. .,Renal Division, Department of Medicine, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Julie Williams
- Bioscience Renal, Research and Early Development, Cardiovascular, Renal and Metabolic, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, UK
| | - Li-Ming Gan
- Research and Early Clinical Development, Cardiovascular, Renal and Metabolism, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden.,Department of Molecular and Clinical Medicine, Department of Cardiology, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Magnus Söderberg
- Cardiovascular, Renal and Metabolic Safety, Clinical Pharmacology and Safety Sciences, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, Sweden
| | - Pernille B L Hansen
- Bioscience Renal, Research and Early Development, Cardiovascular, Renal and Metabolic, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, UK.,Wallenberg Center for Molecular and Translational Medicine, Institute of Neuroscience and Physiology, the Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Kevin J Woollard
- Bioscience Renal, Research and Early Development, Cardiovascular, Renal and Metabolic, AstraZeneca, BioPharmaceuticals R&D, Gothenburg, UK. .,Centre for Inflammatory Disease, Imperial College London, London, UK.
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43
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Krupa A, Krupa MM, Pawlak K. Indoleamine 2,3 Dioxygenase 1-The Potential Link between the Innate Immunity and the Ischemia-Reperfusion-Induced Acute Kidney Injury? Int J Mol Sci 2022; 23:6176. [PMID: 35682852 PMCID: PMC9181334 DOI: 10.3390/ijms23116176] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/30/2022] [Indexed: 12/13/2022] Open
Abstract
Ischemia-reperfusion injury (IRI) is of the most common causes of acute kidney injury (AKI); nevertheless, the mechanisms responsible for both early kidney injury and the reparative phase are not fully recognised. The inflammatory response following ischemia is characterised by the crosstalk between cells belonging to the innate immune system-dendritic cells (DCs), macrophages, neutrophils, natural killer (NK) cells, and renal tubular epithelial cells (RTECs). A tough inflammatory response can damage the renal tissue; it may also have a protective effect leading to the repair after IRI. Indoleamine 2,3 dioxygenase 1 (IDO1), the principal enzyme of the kynurenine pathway (KP), has a broad spectrum of immunological activity from stimulation to immunosuppressive activity in inflamed areas. IDO1 expression occurs in cells of the innate immunity and RTECs during IRI, resulting in local tryptophan (TRP) depletion and generation of kynurenines, and both of these mechanisms contribute to the immunosuppressive effect. Nonetheless, it is unknown if the above mechanism can play a harmful or preventive role in IRI-induced AKI. Despite the scarcity of literature in this field, the current review attempts to present a possible role of IDO1 activation in the regulation of the innate immune system in IRI-induced AKI.
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Affiliation(s)
- Anna Krupa
- Department of Internal Medicine and Metabolic Diseases, Medical University of Bialystok, M. Sklodowskiej-Curie 24A, 15-276 Bialystok, Poland;
| | - Mikolaj M. Krupa
- Department of Monitored Pharmacotherapy, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland;
| | - Krystyna Pawlak
- Department of Monitored Pharmacotherapy, Medical University of Bialystok, Mickiewicza 2C, 15-222 Bialystok, Poland;
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Mysore V, Tahir S, Furuhashi K, Arora J, Rosetti F, Cullere X, Yazbeck P, Sekulic M, Lemieux ME, Raychaudhuri S, Horwitz BH, Mayadas TN. Monocytes transition to macrophages within the inflamed vasculature via monocyte CCR2 and endothelial TNFR2. J Exp Med 2022; 219:e20210562. [PMID: 35404389 PMCID: PMC9006314 DOI: 10.1084/jem.20210562] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 11/16/2021] [Accepted: 03/03/2022] [Indexed: 12/13/2022] Open
Abstract
Monocytes undergo phenotypic and functional changes in response to inflammatory cues, but the molecular signals that drive different monocyte states remain largely undefined. We show that monocytes acquire macrophage markers upon glomerulonephritis and may be derived from CCR2+CX3CR1+ double-positive monocytes, which are preferentially recruited, dwell within glomerular capillaries, and acquire proinflammatory characteristics in the nephritic kidney. Mechanistically, the transition to immature macrophages begins within the vasculature and relies on CCR2 in circulating cells and TNFR2 in parenchymal cells, findings that are recapitulated in vitro with monocytes cocultured with TNF-TNFR2-activated endothelial cells generating CCR2 ligands. Single-cell RNA sequencing of cocultures defines a CCR2-dependent monocyte differentiation path associated with the acquisition of immune effector functions and generation of CCR2 ligands. Immature macrophages are detected in the urine of lupus nephritis patients, and their frequency correlates with clinical disease. In conclusion, CCR2-dependent functional specialization of monocytes into macrophages begins within the TNF-TNFR2-activated vasculature and may establish a CCR2-based autocrine, feed-forward loop that amplifies renal inflammation.
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Affiliation(s)
- Vijayashree Mysore
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Suhail Tahir
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Kazuhiro Furuhashi
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Jatin Arora
- Center for Data Sciences, Brigham and Women’s Hospital, Boston, MA
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
| | - Florencia Rosetti
- Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - Xavier Cullere
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Pascal Yazbeck
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
| | - Miroslav Sekulic
- Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, NY
| | | | - Soumya Raychaudhuri
- Center for Data Sciences, Brigham and Women’s Hospital, Boston, MA
- Division of Genetics, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
- Division of Rheumatology, Immunology, and Allergy, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA
- Centre for Genetics and Genomics Versus Arthritis, The University of Manchester, Manchester, UK
| | - Bruce H. Horwitz
- Department of Pediatrics, Boston Children’s Hospital and Harvard Medical School, Boston, MA
| | - Tanya N. Mayadas
- Department of Pathology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA
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Cheung MD, Agarwal A, George JF. Where Are They Now: Spatial and Molecular Diversity of Tissue-Resident Macrophages in the Kidney. Semin Nephrol 2022; 42:151276. [PMID: 36435683 DOI: 10.1016/j.semnephrol.2022.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Kidney resident macrophages (KRMs) are involved in homeostasis, phagocytosis, defense against infectious agents, response to insults, inflammation, and tissue repair. They also play critical roles in the pathogenesis and recovery from many kidney diseases such as acute kidney injury. KRMs historically have been studied as one homogenous population, but the wide-ranging roles and phenotypes observed suggest that there is greater heterogeneity than previously understood. Advancements in RNA sequencing technologies (single-cell RNA sequencing and spatial transcriptomics) have identified specific subsets of KRMs that are molecularly, functionally, and spatially distinct with dynamic changes after kidney injury. Multiple studies have identified unique markers that represent these subpopulations, permitting further characterization of the function and roles they play in the kidney. Understanding the diversity of KRM subpopulations will be key in the development of novel therapies used in treating kidney diseases and promoting kidney health.
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Affiliation(s)
- Matthew D Cheung
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama; Department of Medicine, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama; Nephrology Research and Training Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama
| | - Anupam Agarwal
- Department of Medicine, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama; Nephrology Research and Training Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama; Department of Veteran Affairs, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama
| | - James F George
- Department of Surgery, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama; Nephrology Research and Training Center, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, Alabama.
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Nomura A, Mizuno M, Noto D, Aoyama A, Kuga T, Murayama G, Chiba A, Miyake S. Different Spatial and Temporal Roles of Monocytes and Monocyte-Derived Cells in the Pathogenesis of an Imiquimod Induced Lupus Model. Front Immunol 2022; 13:764557. [PMID: 35371102 PMCID: PMC8964788 DOI: 10.3389/fimmu.2022.764557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 02/21/2022] [Indexed: 12/03/2022] Open
Abstract
Mounting evidence indicates the importance of aberrant Toll-like receptor 7 (TLR7) signaling in the pathogenesis of systemic lupus erythematosus (SLE). However, the mechanism of disease progression remains unclear. An imiquimod (IMQ)-induced lupus model was used to analyze the lupus mechanism related to the aberrant TLR7 signals. C57BL/6 mice and NZB/NZW mice were treated with topical IMQ, and peripheral blood, draining lymph nodes, and kidneys were analyzed focusing on monocytes and monocyte-related cells. Monocytes expressed intermediate to high levels of TLR7, and the long-term application of IMQ increased Ly6Clo monocytes in the peripheral blood and Ly6Clo monocyte-like cells in the lymph nodes and kidneys, whereas Ly6Chi monocyte-like cell numbers were increased in lymph nodes. Ly6Clo monocyte-like cells in the kidneys of IMQ-induced lupus mice were supplied by bone marrow-derived cells as demonstrated using a bone marrow chimera. Ly6Clo monocytes obtained from IMQ-induced lupus mice had upregulated adhesion molecule-related genes, and after adoptive transfer, they showed greater infiltration into the kidneys compared with controls. RNA-seq and post hoc PCR analyses revealed Ly6Clo monocyte-like cells in the kidneys of IMQ-induced lupus mice had upregulated macrophage-related genes compared with peripheral blood Ly6Clo monocytes and downregulated genes compared with kidney macrophages (MF). Ly6Clo monocyte-like cells in the kidneys upregulated Il6 and chemoattracting genes including Ccl5 and Cxcl13. The higher expression of Il6 in Ly6Clo monocyte-like cells compared with MF suggested these cells were more inflammatory than MF. However, MF in IMQ-induced lupus mice were characterized by their high expression of Cxcl13. Genes of proinflammatory cytokines in Ly6Chi and Ly6Clo monocytes were upregulated by stimulation with IMQ but only Ly6Chi monocytes upregulated IFN-α genes upon stimulation with 2′3′-cyclic-GMP-AMP, an agonist of stimulator of interferon genes. Ly6Chi and Ly6Clo monocytes in IMQ-induced lupus mice had different features. Ly6Chi monocytes responded in the lymph nodes of locally stimulated sites and had a higher expression of IFN-α upon stimulation, whereas Ly6Clo monocytes were induced slowly and tended to infiltrate into the kidneys. Infiltrated monocytes in the kidneys likely followed a trajectory through inflammatory monocyte-like cells to MF, which were then involved in the development of nephritis.
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Affiliation(s)
- Atsushi Nomura
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Miho Mizuno
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Daisuke Noto
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Aki Aoyama
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Taiga Kuga
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
| | - Goh Murayama
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan.,Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
| | - Asako Chiba
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Sachiko Miyake
- Department of Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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47
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Hasegawa T, Ishii M. Pathological Osteoclasts and Precursor Macrophages in Inflammatory Arthritis. Front Immunol 2022; 13:867368. [PMID: 35464401 PMCID: PMC9024112 DOI: 10.3389/fimmu.2022.867368] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/18/2022] [Indexed: 01/10/2023] Open
Abstract
Macrophages comprise a variety of subsets with diverse biological functions, including inflammation, tissue repair, regeneration, and fibrosis. In the bone marrow, macrophages differentiate into multinucleated osteoclasts, which have a unique bone-destroying capacity and play key roles in physiological bone remodelling. In contrast, osteoclasts are also involved in inflammatory bone erosion in arthritis and it has been unclear whether the osteoclasts in different tissue settings arise from similar monocytoid precursors and share similar phenotypes. Rapid progresses in the sequencing technologies have provided many important insights regarding the heterogeneity of different types of osteoclasts. The application of single-cell RNA sequencing (scRNA-seq) to the osteoclast precursor-containing macrophages enabled to identify the specific subpopulation differentiating into pathological mature osteoclasts in joints. Furthermore, an intravital imaging technology using two-photon microscopy has succeeded in visualizing the real-time dynamics of immune cells in the synovial microenvironment. These technologies together contributed to characterize the unique macrophages in the inflamed synovium, termed “arthritis-associated osteoclastogenic macrophages (AtoMs)”, causing the pathological bone destruction in inflammatory arthritis. Here, we review and discuss how novel technologies help to better understand the role of macrophages in inflammatory arthritis, especially focusing of osteoclastogenesis at the pannus-bone interface.
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Affiliation(s)
- Tetsuo Hasegawa
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, Japan
- Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
| | - Masaru Ishii
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, Japan
- World Premier International Research Center Initiative (WPI)-Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Laboratory of Bioimaging and Drug Discovery, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
- *Correspondence: Masaru Ishii,
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48
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Winfree S, Al Hasan M, El-Achkar TM. Profiling Immune Cells in the Kidney Using Tissue Cytometry and Machine Learning. KIDNEY360 2022; 3:968-978. [PMID: 36128490 PMCID: PMC9438423 DOI: 10.34067/kid.0006802020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/09/2021] [Indexed: 01/10/2023]
Abstract
The immune system governs key functions that maintain renal homeostasis through various effector cells that reside in or infiltrate the kidney. These immune cells play an important role in shaping adaptive or maladaptive responses to local or systemic stress and injury. We increasingly recognize that microenvironments within the kidney are characterized by a unique distribution of immune cells, the function of which depends on this unique spatial localization. Therefore, quantitative profiling of immune cells in intact kidney tissue becomes essential, particularly at a scale and resolution that allow the detection of differences between the various "nephro-ecosystems" in health and disease. In this review, we discuss advancements in tissue cytometry of the kidney, performed through multiplexed confocal imaging and analysis using the Volumetric Tissue Exploration and Analysis (VTEA) software. We highlight how this tool has improved our understanding of the role of the immune system in the kidney and its relevance in the pathobiology of renal disease. We also discuss how the field is increasingly incorporating machine learning to enhance the analytic potential of imaging data and provide unbiased methods to explore and visualize multidimensional data. Such novel analytic methods could be particularly relevant when applied to profiling immune cells. Furthermore, machine-learning approaches applied to cytometry could present venues for nonexhaustive exploration and classification of cells from existing data and improving tissue economy. Therefore, tissue cytometry is transforming what used to be a qualitative assessment of the kidney into a highly quantitative, imaging-based "omics" assessment that complements other advanced molecular interrogation technologies.
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Affiliation(s)
- Seth Winfree
- Division of Nephrology, Department of Medicine, Indiana University, Indianapolis, Indiana
| | - Mohammad Al Hasan
- Department of Computer Science, Indiana University–Purdue University, Indianapolis, Indiana
| | - Tarek M. El-Achkar
- Division of Nephrology, Department of Medicine, Indiana University, Indianapolis, Indiana,Indianapolis Veterans Affairs Medical Center, Indianapolis, Indiana,Correspondence: Dr. Tarek M. El-Achkar (Ashkar), Division of Nephrology, Department of Medicine, Indiana University, 950 W Walnut St., R2-202, Indianapolis, IN 46202.
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Abstract
Blood vessel endothelial cells (ECs) have long been known to modulate inflammation by regulating immune cell trafficking, activation status and function. However, whether the heterogeneous EC populations in various tissues and organs differ in their immunomodulatory capacity has received insufficient attention, certainly with regard to considering them for alternative immunotherapy. Recent single-cell studies have identified specific EC subtypes that express gene signatures indicative of phagocytosis or scavenging, antigen presentation and immune cell recruitment. Here we discuss emerging evidence suggesting a tissue-specific and vessel type-specific immunomodulatory role for distinct subtypes of ECs, here collectively referred to as 'immunomodulatory ECs' (IMECs). We propose that IMECs have more important functions in immunity than previously recognized, and suggest that these might be considered as targets for new immunotherapeutic approaches.
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50
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Abstract
Macrophages have emerged at the forefront of research in immunology and transplantation because of recent advances in basic science. New findings have illuminated macrophage populations not identified previously, expanded upon traditional macrophage phenotypes, and overhauled macrophage ontogeny. These advances have major implications for the field of transplant immunology. Macrophages are known to prime adaptive immune responses, perpetuate T-cell-mediated rejection and antibody-mediated rejection, and promote allograft fibrosis. In this review, macrophage phenotypes and their role in allograft injury of solid organ transplants will be discussed with an emphasis on kidney transplantation. Additionally, consideration will be given to the prospect of manipulating macrophage phenotypes as cell-based therapy. Innate immunity and macrophages represent important players in allograft injury and a promising target to improve transplant outcomes.
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Affiliation(s)
- Sarah E. Panzer
- Department of Medicine, Division of Nephrology, University of Wisconsin, Madison, WI, United States
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