1
|
Hayes BW, Choi HW, Rathore APS, Bao C, Shi J, Huh Y, Kim MW, Mencarelli A, Bist P, Ng LG, Shi C, Nho JH, Kim A, Yoon H, Lim D, Hannan JL, Purves JT, Hughes FM, Ji RR, Abraham SN. Recurrent infections drive persistent bladder dysfunction and pain via sensory nerve sprouting and mast cell activity. Sci Immunol 2024; 9:eadi5578. [PMID: 38427717 DOI: 10.1126/sciimmunol.adi5578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 02/07/2024] [Indexed: 03/03/2024]
Abstract
Urinary tract infections (UTIs) account for almost 25% of infections in women. Many are recurrent (rUTI), with patients frequently experiencing chronic pelvic pain and urinary frequency despite clearance of bacteriuria after antibiotics. To elucidate the basis for these bacteria-independent bladder symptoms, we examined the bladders of patients with rUTI. We noticed a notable increase in neuropeptide content in the lamina propria and indications of enhanced nociceptive activity. In mice subjected to rUTI, we observed sensory nerve sprouting that was associated with nerve growth factor (NGF) produced by recruited monocytes and tissue-resident mast cells. Treatment of rUTI mice with an NGF-neutralizing antibody prevented sprouting and alleviated pelvic sensitivity, whereas instillation of native NGF into naïve mice bladders mimicked nerve sprouting and pain behavior. Nerve activation, pain, and urinary frequency were each linked to the presence of proximal mast cells, because mast cell deficiency or treatment with antagonists against receptors of several direct or indirect mast cell products was each effective therapeutically. Thus, our findings suggest that NGF-driven sensory sprouting in the bladder coupled with chronic mast cell activation represents an underlying mechanism driving bacteria-independent pain and voiding defects experienced by patients with rUTI.
Collapse
Affiliation(s)
- Byron W Hayes
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Hae Woong Choi
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Abhay P S Rathore
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Chunjing Bao
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Jianling Shi
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Yul Huh
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Michael W Kim
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
| | - Andrea Mencarelli
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Pradeep Bist
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Lai Guan Ng
- Singapore Immunology Network, Agency for Science, Technology and Research, Immunos, Biopolis Singapore 138648, Singapore
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Changming Shi
- Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Joo Hwan Nho
- Division of Life Sciences, Korea University, Seoul 02841, South Korea
| | - Aram Kim
- Department of Urology, Konkuk University Hospital, Konkuk University School of Medicine, Seoul 05029, South Korea
| | - Hana Yoon
- Department of Urology, Ewha Womans University, College of Medicine, Seoul 07804, South Korea
| | - Donghoon Lim
- Department of Urology, Chosun University School of Medicine, Gwangju, South Korea
| | - Johanna L Hannan
- Department of Physiology, Brody School of Medicine, East Carolina University, Greenville, NC, USA
| | - J Todd Purves
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Francis M Hughes
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Ru-Rong Ji
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
- Department of Neurobiology, Duke University Medical Center, Durham, NC, USA
| | - Soman N Abraham
- Department of Pathology, Duke University Medical Center, Durham, NC, USA
- Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Department of Immunology, Duke University Medical Center, Durham, NC, USA
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, NC, USA
| |
Collapse
|
2
|
Akbarzadeh R, Czyz C, Thomsen SY, Schilf P, Murthy S, Sadik CD, König P. Monocyte populations are involved in the pathogenesis of experimental epidermolysis bullosa acquisita. Front Immunol 2023; 14:1241461. [PMID: 38116004 PMCID: PMC10728641 DOI: 10.3389/fimmu.2023.1241461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Accepted: 11/21/2023] [Indexed: 12/21/2023] Open
Abstract
Monocytes play a significant role in the pathogenesis of most inflammatory diseases, including autoimmune diseases. Herein, different subpopulations of monocytes often play differential, partially antagonistic roles, in the regulation of tissue populations. Pemphigoid diseases constitute a group of autoimmune blistering skin diseases featuring a marked infiltration of the dermis with immune cells, including monocytes. The monocyte subsets infiltrating the skin, however, have largely remained elusive. Monocyte adhesion and recruitment into the inflamed tissues are regulated by chemokine receptors, most prominently by CCR2 and CX3CR1. To delineate the involvement of monocyte populations in autoimmune blistering skin diseases, we spatiotemporally monitored the dynamic spectrum of monocyte populations that infiltrate the inflamed skin using multiphoton intravital imaging and reporter mice for chemokine receptors. Experimental epidermolysis bullosa acquisita (EBA) was induced by injection of anti-murine type VII collagen (amCOLVII) IgG into the Csf1rEGFP-reporter mice, where circulating myeloid cells, such as monocytes and neutrophils, express an EGFP. EGFP+ cells, including neutrophils and monocytes, were present in the skin, immediately after the deposition of the amCOLVII antibody at the dermal-epidermal junction. To investigate the recruitment and involvement of different monocyte-derived cell populations in the disease course further, EBA was induced in CCR2RFP/+-reporter and CX3CR1GFP/+-reporter mice. A comparable distribution of red fluorescent protein (RFP)+ or green fluorescent protein (GFP)+ was found in both diseased mice and their respective controls over time, indicating the similar recruitment of monocytes into the skin following the binding of autoantibodies. Experiments were extended to the CCR2RFP/RFP-deficient and CX3CR1GFP/GFP-deficient mice to determine whether monocyte recruitment and disease severity are compromised in the absence of the receptor. A comparable pattern was seen in the recruitment of monocytes into the skin in both reporter and deficient mice. However, in contrast to similar disease severity between CX3CR1-deficient and reporter mice, CCR2-deficient mice developed significantly less disease than CCR2-reporter mice, as indicated by the percentage of affected area of ears. Collectively, our observations indicate that while CCR2 and CX3CR1 receptors are not involved in the recruitment of monocytes into the skin, CCR2 deficiency is associated with improved disease outcomes in experimental EBA in mice.
Collapse
Affiliation(s)
- Reza Akbarzadeh
- Department of Rheumatology and Clinical Immunology, University of Lübeck, Lübeck, Germany
- Institute of Anatomy, University of Lübeck, Lübeck, Germany
| | | | - Sarah-Yasmin Thomsen
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Paul Schilf
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Sripriya Murthy
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Christian D. Sadik
- Department of Dermatology, Allergy, and Venereology, University of Lübeck, Lübeck, Germany
| | - Peter König
- Institute of Anatomy, University of Lübeck, Lübeck, Germany
| |
Collapse
|
3
|
Loinard C, Benadjaoud MA, Lhomme B, Flamant S, Baijer J, Tamarat R. Inflammatory cells dynamics control neovascularization and tissue healing after localized radiation induced injury in mice. Commun Biol 2023; 6:571. [PMID: 37248293 DOI: 10.1038/s42003-023-04939-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 05/15/2023] [Indexed: 05/31/2023] Open
Abstract
Local overexposure to ionizing radiation leads to chronic inflammation, vascular damage and cachexia. Here we investigate the kinetics of inflammatory cells from day (D)1 to D180 after mouse hindlimb irradiation and analyze the role of monocyte (Mo) subsets in tissue revascularization. At D1, we find that Mo and T cells are mobilized from spleen and bone marrow to the blood. New vessel formation during early phase, as demonstrated by ~1.4- and 2-fold increased angiographic score and capillary density, respectively, correlates with an increase of circulating T cells, and Mohi and type 1-like macrophages in irradiated muscle. At D90 vascular rarefaction and cachexia are observed, associated with decreased numbers of circulating Molo and Type 2-like macrophages in irradiated tissue. Moreover, CCR2- and CX3CR1-deficency negatively influences neovascularization. However adoptive transfer of Mohi enhances vessel growth. Our data demonstrate the radiation-induced dynamic inflammatory waves and the major role of inflammatory cells in neovascularization.
Collapse
Affiliation(s)
- Céline Loinard
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France.
| | | | - Bruno Lhomme
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | - Stéphane Flamant
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| | | | - Radia Tamarat
- Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Fontenay-aux-Roses, France
| |
Collapse
|
4
|
Abstract
Bladder cancer is a prevalent but currently understudied cancer type and patient outcomes are poor when it progresses to the muscle-invasive stage. Current research in bladder cancer focuses on the genetic and epigenetic alterations occurring within the urothelial cell compartment; however, the stromal compartment receives less attention. Dynamic changes and intercellular communications occur in the tumour microenvironment (TME) of the bladder - a new concept and niche that we designate as the bladder TME (bTME) - during tumour evolution, metastatic progression and in the context of therapeutic response. Collagens and their cognate receptors, the discoidin domain receptors, have a role in various steps of the metastatic cascade and in immune checkpoint resistance. Furthermore, the presence of another TME niche, the metastatic TME (met-TME), is a novel concept that could support divergent progression of metastatic colonization in different organs, resulting in distant metastases with distinct characteristics and genetics from the primary tumour. The stroma has divergent roles in mediating therapeutic response to BCG immunotherapy and immune checkpoint inhibitors, as well as conventional chemotherapy or trimodality therapy (that is, maximal transurethral resection of bladder tumour, chemotherapy and radiotherapy). The local bTME and distant met-TME are currently conceptually and therapeutically unexploited niches that should be actively investigated. New biological insights from these TMEs will enable rational design of strategies that co-target the tumour and stroma, which are expected to improve the outcomes of patients with advanced bladder cancer.
Collapse
Affiliation(s)
- Yu-Cheng Lee
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hung-Ming Lam
- Department of Urology, University of Washington, Seattle, WA, USA
| | - Charles Rosser
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Dan Theodorescu
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - William C Parks
- Department of Medicine, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Keith Syson Chan
- Samuel Oschin Cancer Center, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
- Department of Academic Pathology, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
| |
Collapse
|
5
|
Schmitz J, Brauns N, Hüsing AM, Flechsig M, Glomb T, Bräsen JH, Haller H, von Vietinghoff S. Renal medullary osmolytes NaCl and urea differentially modulate human tubular cell cytokine expression and monocyte recruitment. Eur J Immunol 2022; 52:1258-1272. [DOI: 10.1002/eji.202149723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 03/20/2022] [Accepted: 05/06/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Jessica Schmitz
- Nephropathology Unit Institute for Pathology University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| | - Nicolas Brauns
- Department of Internal Medicine Division of Nephrology and Hypertension University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| | - Anne M. Hüsing
- Department of Internal Medicine Division of Nephrology and Hypertension University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| | - Martina Flechsig
- Department of Internal Medicine Division of Nephrology and Hypertension University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| | - Thorsten Glomb
- Core Facility Transcriptomics Hannover Medical School Hannover Germany
| | - Jan Hinrich Bräsen
- Nephropathology Unit Institute for Pathology University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| | - Hermann Haller
- Department of Internal Medicine Division of Nephrology and Hypertension University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| | - Sibylle von Vietinghoff
- Department of Internal Medicine Division of Nephrology and Hypertension University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
- Nephrology Section First Medical Clinic University Clinic and Rheinische Friedrich‐Wilhelms Universität Bonn Bonn Germany
| |
Collapse
|
6
|
El Sayed S, Patik I, Redhu NS, Glickman JN, Karagiannis K, El Naenaeey ESY, Elmowalid GA, Abd El Wahab AM, Snapper SB, Horwitz BH. CCR2 promotes monocyte recruitment and intestinal inflammation in mice lacking the interleukin-10 receptor. Sci Rep 2022; 12:452. [PMID: 35013585 PMCID: PMC8748948 DOI: 10.1038/s41598-021-04098-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 12/15/2021] [Indexed: 12/12/2022] Open
Abstract
Macrophages are a heterogeneous population of mononuclear phagocytes abundantly distributed throughout the intestinal compartments that adapt to microenvironmental specific cues. In adult mice, the majority of intestinal macrophages exhibit a mature phenotype and are derived from blood monocytes. In the steady-state, replenishment of these cells is reduced in the absence of the chemokine receptor CCR2. Within the intestine of mice with colitis, there is a marked increase in the accumulation of immature macrophages that demonstrate an inflammatory phenotype. Here, we asked whether CCR2 is necessary for the development of colitis in mice lacking the receptor for IL10. We compared the development of intestinal inflammation in mice lacking IL10RA or both IL10RA and CCR2. The absence of CCR2 interfered with the accumulation of immature macrophages in IL10R-deficient mice, including a novel population of rounded submucosal Iba1+ cells, and reduced the severity of colitis in these mice. In contrast, the absence of CCR2 did not reduce the augmented inflammatory gene expression observed in mature intestinal macrophages isolated from mice lacking IL10RA. These data suggest that both newly recruited CCR2-dependent immature macrophages and CCR2-independent residual mature macrophages contribute to the development of intestinal inflammation observed in IL10R-deficient mice.
Collapse
Affiliation(s)
- Shorouk El Sayed
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02420, USA
- Faculty of Veterinary Medicine, Department of Microbiology, Zagazig University, Zagazig, Ash Sharkia, Egypt
| | - Izabel Patik
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02420, USA
| | - Naresh S Redhu
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02420, USA
- Morphic Therapeutic, Waltham, MA, USA
| | - Jonathan N Glickman
- Department of Pathology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Konstantinos Karagiannis
- Center for Biologics Evaluation and Research, US Food and Drug Administration, Silver Spring, MD, USA
| | - El Sayed Y El Naenaeey
- Faculty of Veterinary Medicine, Department of Microbiology, Zagazig University, Zagazig, Ash Sharkia, Egypt
| | - Gamal A Elmowalid
- Faculty of Veterinary Medicine, Department of Microbiology, Zagazig University, Zagazig, Ash Sharkia, Egypt
| | - Ashraf M Abd El Wahab
- Faculty of Veterinary Medicine, Department of Microbiology, Zagazig University, Zagazig, Ash Sharkia, Egypt
| | - Scott B Snapper
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02420, USA
- Division of Gastroenterology, Brigham and Women's Hospital, Boston, MA, USA
| | - Bruce H Horwitz
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Boston Children's Hospital, 300 Longwood Avenue, Boston, MA, 02420, USA.
- Division of Emergency Medicine, Boston Children's Hospital, Boston, MA, USA.
| |
Collapse
|
7
|
Amiss AS, von Pein JB, Webb JR, Condon ND, Harvey PJ, Phan MD, Schembri MA, Currie BJ, Sweet MJ, Craik DJ, Kapetanovic R, Henriques ST, Lawrence N. Modified horseshoe crab peptides target and kill bacteria inside host cells. Cell Mol Life Sci 2021; 79:38. [PMID: 34971427 PMCID: PMC11071844 DOI: 10.1007/s00018-021-04041-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 11/09/2021] [Accepted: 11/13/2021] [Indexed: 12/14/2022]
Abstract
Bacteria that occupy an intracellular niche can evade extracellular host immune responses and antimicrobial molecules. In addition to classic intracellular pathogens, other bacteria including uropathogenic Escherichia coli (UPEC) can adopt both extracellular and intracellular lifestyles. UPEC intracellular survival and replication complicates treatment, as many therapeutic molecules do not effectively reach all components of the infection cycle. In this study, we explored cell-penetrating antimicrobial peptides from distinct structural classes as alternative molecules for targeting bacteria. We identified two β-hairpin peptides from the horseshoe crab, tachyplesin I and polyphemusin I, with broad antimicrobial activity toward a panel of pathogenic and non-pathogenic bacteria in planktonic form. Peptide analogs [I11A]tachyplesin I and [I11S]tachyplesin I maintained activity toward bacteria, but were less toxic to mammalian cells than native tachyplesin I. This important increase in therapeutic window allowed treatment with higher concentrations of [I11A]tachyplesin I and [I11S]tachyplesin I, to significantly reduce intramacrophage survival of UPEC in an in vitro infection model. Mechanistic studies using bacterial cells, model membranes and cell membrane extracts, suggest that tachyplesin I and polyphemusin I peptides kill UPEC by selectively binding and disrupting bacterial cell membranes. Moreover, treatment of UPEC with sublethal peptide concentrations increased zinc toxicity and enhanced innate macrophage antimicrobial pathways. In summary, our combined data show that cell-penetrating peptides are attractive alternatives to traditional small molecule antibiotics for treating UPEC infection, and that optimization of native peptide sequences can deliver effective antimicrobials for targeting bacteria in extracellular and intracellular environments.
Collapse
Affiliation(s)
- Anna S Amiss
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Jessica B von Pein
- Institute for Molecular Bioscience, IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Jessica R Webb
- Global and Tropical Health Division, Menzies School of Health Research, Darwin, NT, 0811, Australia
| | - Nicholas D Condon
- Australian Cancer Research Foundation/Institute for Molecular Bioscience Cancer Biology Imaging Facility, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Peta J Harvey
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Minh-Duy Phan
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Queensland, Australia
| | - Mark A Schembri
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Queensland, Australia
| | - Bart J Currie
- Global and Tropical Health Division, Menzies School of Health Research, Darwin, NT, 0811, Australia
- Department of Infectious Diseases and Northern Territory Medical Program, Royal Darwin Hospital, Darwin, NT, 0811, Australia
| | - Matthew J Sweet
- Institute for Molecular Bioscience, IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - David J Craik
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Ronan Kapetanovic
- Institute for Molecular Bioscience, IMB Centre for Inflammation and Disease Research and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, QLD, 4072, Australia.
- Friedrich Miescher Institute for Biomedical Research, 4058, Basel, BS, Switzerland.
| | - Sónia Troeira Henriques
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia.
- Queensland University of Technology, School of Biomedical Sciences, Translational Research Institute, Brisbane, QLD, 4102, Australia.
| | - Nicole Lawrence
- Institute for Molecular Bioscience, Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Queensland, Brisbane, QLD, 4072, Australia.
| |
Collapse
|
8
|
Vega-Pérez A, Villarrubia LH, Godio C, Gutiérrez-González A, Feo-Lucas L, Ferriz M, Martínez-Puente N, Alcaín J, Mora A, Sabio G, López-Bravo M, Ardavín C. Resident macrophage-dependent immune cell scaffolds drive anti-bacterial defense in the peritoneal cavity. Immunity 2021; 54:2578-2594.e5. [PMID: 34717795 DOI: 10.1016/j.immuni.2021.10.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/13/2021] [Accepted: 10/11/2021] [Indexed: 12/25/2022]
Abstract
Peritoneal immune cells reside unanchored within the peritoneal fluid in homeostasis. Here, we examined the mechanisms that control bacterial infection in the peritoneum using a mouse model of abdominal sepsis following intraperitoneal Escherichia coli infection. Whole-mount immunofluorescence and confocal microscopy of the peritoneal wall and omentum revealed that large peritoneal macrophages (LPMs) rapidly cleared bacteria and adhered to the mesothelium, forming multilayered cellular aggregates composed by sequentially recruited LPMs, B1 cells, neutrophils, and monocyte-derived cells (moCs). The formation of resident macrophage aggregates (resMφ-aggregates) required LPMs and thrombin-dependent fibrin polymerization. E. coli infection triggered LPM pyroptosis and release of inflammatory mediators. Resolution of these potentially inflammatory aggregates required LPM-mediated recruitment of moCs, which were essential for fibrinolysis-mediated resMφ-aggregate disaggregation and the prevention of peritoneal overt inflammation. Thus, resMφ-aggregates provide a physical scaffold that enables the efficient control of peritoneal infection, with implications for antimicrobial immunity in other body cavities, such as the pleural cavity or brain ventricles.
Collapse
|
9
|
Verma V, Kumar P, Gupta S, Yadav S, Dhanda RS, Yadav M. NLRP3‐mediated dysfunction of mitochondria leads to cell death in CFT073‐stimulated macrophages. Scand J Immunol 2021. [DOI: 10.1111/sji.13104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vivek Verma
- Dr. B. R. Ambedkar Center for Biomedical Research University of Delhi Delhi India
| | - Parveen Kumar
- Department of Urology University of Alabama at Birmingham Birmingham Alabama USA
| | - Surbhi Gupta
- Dr. B. R. Ambedkar Center for Biomedical Research University of Delhi Delhi India
| | - Sonal Yadav
- Dr. B. R. Ambedkar Center for Biomedical Research University of Delhi Delhi India
| | | | - Manisha Yadav
- Dr. B. R. Ambedkar Center for Biomedical Research University of Delhi Delhi India
| |
Collapse
|
10
|
Amiss AS, Henriques ST, Lawrence N. Antimicrobial peptides provide wider coverage for targeting drug‐resistant bacterial pathogens. Pept Sci (Hoboken) 2021. [DOI: 10.1002/pep2.24246] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Anna S. Amiss
- Institute for Molecular Bioscience The University of Queensland Brisbane Queensland Australia
| | - Sónia Troeira Henriques
- Institute for Molecular Bioscience The University of Queensland Brisbane Queensland Australia
- School of Biomedical Sciences Queensland University of Technology, Translational Research Institute Brisbane Queensland Australia
| | - Nicole Lawrence
- Institute for Molecular Bioscience The University of Queensland Brisbane Queensland Australia
| |
Collapse
|
11
|
Leblond MM, Zdimerova H, Desponds E, Verdeil G. Tumor-Associated Macrophages in Bladder Cancer: Biological Role, Impact on Therapeutic Response and Perspectives for Immunotherapy. Cancers (Basel) 2021; 13:cancers13184712. [PMID: 34572939 PMCID: PMC8467100 DOI: 10.3390/cancers13184712] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/10/2021] [Accepted: 09/17/2021] [Indexed: 12/16/2022] Open
Abstract
Tumor-associated macrophages (TAMs) are one of the most abundant infiltrating immune cells of solid tumors. Despite their possible dual role, i.e., pro- or anti-tumoral, there is considerable evidence showing that the accumulation of TAMs promotes tumor progression rather than slowing it. Several strategies are being developed and clinically tested to target these cells. Bladder cancer (BCa) is one of the most common cancers, and despite heavy treatments, including immune checkpoint inhibitors (ICIs), the overall patient survival for advanced BCa is still poor. TAMs are present in bladder tumors and play a significant role in BCa development. However, few investigations have analyzed the effect of targeting TAMs in BCa. In this review, we focus on the importance of TAMs in a cancerous bladder, their association with patient outcome and treatment efficiency as well as on how current BCa treatments impact these cells. We also report different strategies used in other cancer types to develop new immunotherapeutic strategies with the aim of improving BCa management through TAMs targeting.
Collapse
Affiliation(s)
- Marine M. Leblond
- UNICAEN, CEA, CNRS, ISTCT/CERVOxy Group, GIP CYCERON, Normandie University, 14000 Caen, France;
| | - Hana Zdimerova
- Department of Oncology UNIL CHUV, University of Lausanne, 1015 Lausanne, Switzerland; (H.Z.); (E.D.)
| | - Emma Desponds
- Department of Oncology UNIL CHUV, University of Lausanne, 1015 Lausanne, Switzerland; (H.Z.); (E.D.)
| | - Grégory Verdeil
- Department of Oncology UNIL CHUV, University of Lausanne, 1015 Lausanne, Switzerland; (H.Z.); (E.D.)
- Correspondence:
| |
Collapse
|
12
|
Hua R, Edey LF, O'Dea KP, Howe L, Herbert BR, Cheng W, Zheng X, MacIntyre DA, Bennett PR, Takata M, Johnson MR. CCR2 mediates the adverse effects of LPS in the pregnant mouse. Biol Reprod 2021; 102:445-455. [PMID: 31599921 DOI: 10.1093/biolre/ioz188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 08/14/2019] [Accepted: 09/16/2019] [Indexed: 01/02/2023] Open
Abstract
In our earlier work, we found that intrauterine (i.u.) and intraperitoneal (i.p.) injection of LPS (10-μg serotype 0111:B4) induced preterm labor (PTL) with high pup mortality, marked systemic inflammatory response and hypotension. Here, we used both i.u. and i.p. LPS models in pregnant wild-type (wt) and CCR2 knockout (CCR2-/-) mice on E16 to investigate the role played by the CCL2/CCR2 system in the response to LPS. Basally, lower numbers of monocytes and macrophages and higher numbers of neutrophils were found in the myometrium, placenta, and blood of CCR2-/- vs. wt mice. After i.u. LPS, parturition occurred at 14 h in both groups of mice. At 7 h post-injection, 70% of wt pups were dead vs. 10% of CCR2-/- pups, but at delivery 100% of wt and 90% of CCR2-/- pups were dead. Myometrial and placental monocytes and macrophages were generally lower in CCR2-/- mice, but this was less consistent in the circulation, lung, and liver. At 7 h post-LPS, myometrial ERK activation was greater and JNK and p65 lower and the mRNA levels of chemokines were higher and of inflammatory cytokines lower in CCR2-/- vs. wt mice. Pup brain and placental inflammation were similar. Using the IP LPS model, we found that all measures of arterial pressure increased in CCR2-/- but declined in wt mice. These data suggest that the CCL2/CCR2 system plays a critical role in the cardiovascular response to LPS and contributes to pup death but does not influence the onset of inflammation-induced PTL.
Collapse
Affiliation(s)
- Renyi Hua
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK.,The International Peace Maternity & Child Health Hospital of China Welfare Institute (IPMCH), School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Lydia F Edey
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Kieran P O'Dea
- Section of Anaesthetics, Pain Medicine, and Intensive Care, Faculty of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Laura Howe
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Bronwen R Herbert
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - Weiwei Cheng
- The International Peace Maternity & Child Health Hospital of China Welfare Institute (IPMCH), School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Xia Zheng
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| | - David A MacIntyre
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, London, UK
| | - Philip R Bennett
- Institute of Reproductive and Developmental Biology, Hammersmith Hospital Campus, London, UK
| | - Masao Takata
- The International Peace Maternity & Child Health Hospital of China Welfare Institute (IPMCH), School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Embryo Original Diseases, Shanghai Municipal Key Clinical Specialty, Shanghai, China
| | - Mark R Johnson
- Imperial College Parturition Research Group, Academic Department of Obstetrics & Gynaecology, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, UK
| |
Collapse
|
13
|
Takacs GP, Flores-Toro JA, Harrison JK. Modulation of the chemokine/chemokine receptor axis as a novel approach for glioma therapy. Pharmacol Ther 2021; 222:107790. [PMID: 33316289 PMCID: PMC8122077 DOI: 10.1016/j.pharmthera.2020.107790] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Accepted: 12/04/2020] [Indexed: 02/06/2023]
Abstract
Chemokines are a large subfamily of cytokines known for their ability to facilitate cell migration, most notably leukocytes, throughout the body. Chemokines are necessary for a functioning immune system in both health and disease and have received considerable attention for their roles in orchestrating temporal-spatial regulation of immune cell populations in cancer. Gliomas comprise a group of common central nervous system (CNS) primary tumors that are extremely challenging to treat. Immunotherapy approaches for highly malignant brain tumors offer an exciting new avenue for therapeutic intervention but so far, have seen limited successful clinical outcomes. Herein we focus on important chemokine/chemokine receptor systems in the regulation of pro- and anti-tumor mechanisms, highlighting potential therapeutic advantages of modulating these systems in malignant gliomas and other cancers.
Collapse
Affiliation(s)
- Gregory P Takacs
- Department of Pharmacology & Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Joseph A Flores-Toro
- Department of Pharmacology & Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Jeffrey K Harrison
- Department of Pharmacology & Therapeutics, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
| |
Collapse
|
14
|
Subramaniam N, Bottek J, Thiebes S, Zec K, Kudla M, Soun C, de Dios Panal E, Lill JK, Pfennig A, Herrmann R, Bruderek K, Rahmann S, Brandau S, Johansson P, Reinhardt HC, Dürig J, Seiffert M, Bracht T, Sitek B, Engel DR. Proteomic and bioinformatic profiling of neutrophils in CLL reveals functional defects that predispose to bacterial infections. Blood Adv 2021; 5:1259-72. [PMID: 33651101 DOI: 10.1182/bloodadvances.2020002949] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 01/19/2021] [Indexed: 12/15/2022] Open
Abstract
Patients with chronic lymphocytic leukemia (CLL) typically suffer from frequent and severe bacterial infections. Although it is well known that neutrophils are critical innate immune cells facilitating the early defense, the underlying phenotypical and functional changes in neutrophils during CLL remain largely elusive. Using a murine adoptive transfer model of CLL, we demonstrate aggravated bacterial burden in CLL-bearing mice upon a urinary tract infection with uropathogenic Escherichia coli. Bioinformatic analyses of the neutrophil proteome revealed increased expression of proteins associated with interferon signaling and decreased protein expression associated with granule composition and neutrophil migration. Functional experiments validated these findings by showing reduced levels of myeloperoxidase and acidification of neutrophil granules after ex vivo phagocytosis of bacteria. Pathway enrichment analysis indicated decreased expression of molecules critical for neutrophil recruitment, and migration of neutrophils into the infected urinary bladder was significantly reduced. These altered migratory properties of neutrophils were also associated with reduced expression of CD62L and CXCR4 and correlated with an increased incidence of infections in patients with CLL. In conclusion, this study describes a molecular signature of neutrophils through proteomic, bioinformatic, and functional analyses that are linked to a reduced migratory ability, potentially leading to increased bacterial infections in patients with CLL.
Collapse
|
15
|
Ruiz-Rosado JDD, Robledo-Avila F, Cortado H, Rangel-Moreno J, Justice SS, Yang C, Spencer JD, Becknell B, Partida-Sanchez S. Neutrophil-Macrophage Imbalance Drives the Development of Renal Scarring during Experimental Pyelonephritis. J Am Soc Nephrol 2021; 32:69-85. [PMID: 33148615 PMCID: PMC7894670 DOI: 10.1681/asn.2020030362] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 09/13/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND In children, the acute pyelonephritis that can result from urinary tract infections (UTIs), which commonly ascend from the bladder to the kidney, is a growing concern because it poses a risk of renal scarring and irreversible loss of kidney function. To date, the cellular mechanisms underlying acute pyelonephritis-driven renal scarring remain unknown. METHODS We used a preclinical model of uropathogenic Escherichia coli-induced acute pyelonephritis to determine the contribution of neutrophils and monocytes to resolution of the condition and the subsequent development of kidney fibrosis. We used cell-specific monoclonal antibodies to eliminate neutrophils, monocytes, or both. Bacterial ascent and the cell dynamics of phagocytic cells were assessed by biophotonic imaging and flow cytometry, respectively. We used quantitative RT-PCR and histopathologic analyses to evaluate inflammation and renal scarring. RESULTS We found that neutrophils are critical to control bacterial ascent, which is in line with previous studies suggesting a protective role for neutrophils during a UTI, whereas monocyte-derived macrophages orchestrate a strong, but ineffective, inflammatory response against uropathogenic, E. coli-induced, acute pyelonephritis. Experimental neutropenia during acute pyelonephritis resulted in a compensatory increase in the number of monocytes and heightened macrophage-dependent inflammation in the kidney. Exacerbated macrophage-mediated inflammatory responses promoted renal scarring and compromised renal function, as indicated by elevated serum creatinine, BUN, and potassium. CONCLUSIONS These findings reveal a previously unappreciated outcome for neutrophil-macrophage imbalance in promoting host susceptibility to acute pyelonephritis and the development of permanent renal damage. This suggests targeting dysregulated macrophage responses might be a therapeutic tool to prevent renal scarring during acute pyelonephritis.
Collapse
Affiliation(s)
- Juan de Dios Ruiz-Rosado
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Frank Robledo-Avila
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Hanna Cortado
- Center for Clinical and Translational Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio
| | - Javier Rangel-Moreno
- Division of Allergy, Immunology, and Rheumatology, Department of Medicine, University of Rochester, Rochester, New York
| | - Sheryl S. Justice
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Ching Yang
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio,Department of Veterinary Bioscience, The Ohio State University, Columbus, Ohio
| | - John David Spencer
- Center for Clinical and Translational Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio,Division of Nephrology, Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Brian Becknell
- Center for Clinical and Translational Research, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio,Division of Nephrology, Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| | - Santiago Partida-Sanchez
- Center for Microbial Pathogenesis, Abigail Wexner Research Institute at Nationwide Children’s Hospital, Columbus, Ohio,Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio
| |
Collapse
|
16
|
Auger JP, Rivest S, Benoit-Biancamano MO, Segura M, Gottschalk M. Inflammatory Monocytes and Neutrophils Regulate Streptococcus suis-Induced Systemic Inflammation and Disease but Are Not Critical for the Development of Central Nervous System Disease in a Mouse Model of Infection. Infect Immun 2020; 88:e00787-19. [PMID: 31818962 DOI: 10.1128/IAI.00787-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022] Open
Abstract
Streptococcus suis is an important porcine bacterial pathogen and zoonotic agent responsible for sudden death, septic shock, and meningitis. These pathologies are a consequence of elevated bacterial replication leading to exacerbated and uncontrolled inflammation, a hallmark of the S. suis systemic and central nervous system (CNS) infections. Monocytes and neutrophils are immune cells involved in various functions, including proinflammatory mediator production. Streptococcus suis is an important porcine bacterial pathogen and zoonotic agent responsible for sudden death, septic shock, and meningitis. These pathologies are a consequence of elevated bacterial replication leading to exacerbated and uncontrolled inflammation, a hallmark of the S. suis systemic and central nervous system (CNS) infections. Monocytes and neutrophils are immune cells involved in various functions, including proinflammatory mediator production. Moreover, monocytes are composed of two main subsets: shorter-lived inflammatory monocytes and longer-lived patrolling monocytes. However, regardless of their presence in blood and the fact that S. suis-induced meningitis is characterized by infiltration of monocytes and neutrophils into the CNS, their role during the S. suis systemic and CNS diseases remains unknown. Consequently, we hypothesized that monocytes and neutrophils participate in S. suis infection via bacterial clearance and inflammation. Results demonstrated that inflammatory monocytes and neutrophils regulate S. suis-induced systemic disease via their role in inflammation required for bacterial burden control. In the CNS, inflammatory monocytes contributed to exacerbation of S. suis-induced local inflammation, while neutrophils participated in bacterial burden control. However, development of clinical CNS disease was independent of both cell types, indicating that resident immune cells are mostly responsible for S. suis-induced CNS inflammation and clinical disease and that inflammatory monocyte and neutrophil infiltration is a consequence of the induced inflammation. In contrast, the implication of patrolling monocytes was minimal throughout the S. suis infection. Consequently, this study demonstrates that while inflammatory monocytes and neutrophils modulate S. suis-induced systemic inflammation and disease, they are not critical for CNS disease development.
Collapse
|
17
|
Flores-Toro JA, Luo D, Gopinath A, Sarkisian MR, Campbell JJ, Charo IF, Singh R, Schall TJ, Datta M, Jain RK, Mitchell DA, Harrison JK. CCR2 inhibition reduces tumor myeloid cells and unmasks a checkpoint inhibitor effect to slow progression of resistant murine gliomas. Proc Natl Acad Sci U S A 2020; 117:1129-38. [PMID: 31879345 DOI: 10.1073/pnas.1910856117] [Citation(s) in RCA: 185] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Immunotherapy directed at the PD-L1/PD-1 axis has produced treatment advances in various human cancers. Unfortunately, progress has not extended to glioblastoma (GBM), with phase III clinical trials assessing anti-PD-1 monotherapy failing to show efficacy in newly diagnosed and recurrent tumors. Myeloid-derived suppressor cells (MDSCs), a subset of immunosuppressive myeloid derived cells, are known to infiltrate the tumor microenvironment of GBM. Growing evidence suggests the CCL2-CCR2 axis is important for this process. This study evaluated the combination of PD-1 blockade and CCR2 inhibition in anti-PD-1-resistant gliomas. CCR2 deficiency unmasked an anti-PD-1 survival benefit in KR158 glioma-bearing mice. CD11b+/Ly6Chi/PD-L1+ MDSCs within established gliomas decreased with a concomitant increase in overall CCR2+ cells and MDSCs within bone marrow of CCR2-deficient mice. The CCR2 antagonist CCX872 increased median survival as a monotherapy in KR158 glioma-bearing animals and further increased median and overall survival when combined with anti-PD-1. Additionally, combination of CCX872 and anti-PD-1 prolonged median survival time in 005 GSC GBM-bearing mice. In both models, CCX872 decreased tumor associated MDSCs and increased these cells within the bone marrow. Examination of tumor-infiltrating lymphocytes revealed an elevated population, increased IFNγ expression, indicating enhanced cytolytic activity, as well as decreased expression of exhaustion markers in CD4+ and CD8+ T cells following combination treatment. These data establish that combining CCR2 and PD-1 blockade extends survival in clinically relevant murine glioma models and provides the basis on which to advance this combinatorial treatment toward early-phase human trials.
Collapse
|
18
|
Verma V, Gupta S, Kumar P, Yadav S, Dhanda RS, Gaind R, Arora R, Frimodt-Møller N, Yadav M. Involvement of NLRP3 and NLRC4 Inflammasome in Uropathogenic E. coli Mediated Urinary Tract Infections. Front Microbiol 2019; 10:2020. [PMID: 31551961 PMCID: PMC6734172 DOI: 10.3389/fmicb.2019.02020] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/19/2019] [Indexed: 12/19/2022] Open
Abstract
Background Inflammatory response during urinary tract infection (UTI) is mediated by innate immune defense. Nod like receptors (NLRs) have been proposed to work simultaneously beside TLR pathways to mediate pro-inflammatory response and maintain tissue homeostasis. Some in vitro reports have showed the involvement of NLRP3 inflammasome during uropathogenic Escherichia coli (UPEC) mediated UTI. So we have sought to determine the status of various inflammasomes and their components in UPEC mediated UTI. Methods A total of 186 females experiencing the first episode of UTI were recruited for the study and forty were found to be positive for UPEC (≥105 CFU/ml) in their urine (N = 40). Further, we analyzed the expression of NLRP3, NLRC4, NAIP, AIM2, ASC, CASPASE-4, and CASPASE-1 gene at mRNA and protein level in the blood of UPEC confirmed study subjects through real time qPCR and immunoblotting. Healthy females (N = 40) visiting the OPD for health checkups, family planning advice and subjects undergoing routine medical examinations, were recruited as healthy control subjects. Pro-inflammatory cytokines (IL-6, IL-8, IFN-γ, TNF-α and MCP-1) were measured in the plasma of patients and controls through ELISA. For investigation of the involvement of NLRC4 and NLRP3 inflammasome, in vitro studies were performed using co-immunoprecipitation and confocal microscopy. Results Most of the inflammatory regulators studied (i.e., NLRP3, NAIP, NLRC4, ASC, and CASPASE-1) were found to be up-regulated at both mRNA and protein levels in the UPEC infected UTI patients. Also, pro-inflammatory cytokines (IL-6, IL-8, IFN-γ, TNF-α, and MCP-1) were found to be up-regulated in the patients group. However, no significant difference was observed in the expression of AIM2 and CASPASE-4 genes at both mRNA and protein levels. Further, in vitro studies have shown the involvement of NLRC4 inflammasome in UPEC infected THP1 derived macrophages. Conclusion Involvement of NLRP3 and NLRC4 inflammasomes in UPEC infected UTI is evident from our findings. This is the first report showing levels of inflammasome and its components in UTI patients suggesting a possible role during UPEC mediated UTI. We have also reported the involvement of NLRC4 inflammasome for the first time during UTI infection.
Collapse
Affiliation(s)
- Vivek Verma
- Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, New Delhi, India
| | - Surbhi Gupta
- Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, New Delhi, India
| | - Parveen Kumar
- Department of Urology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sonal Yadav
- Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, New Delhi, India
| | | | - Rajni Gaind
- Department of Microbiology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | - Renu Arora
- Department of Obstetrics and Gynecology, Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi, India
| | | | - Manisha Yadav
- Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, New Delhi, India.,Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
| |
Collapse
|
19
|
Menzyanova NG, Pyatina SА, Nikolaeva ED, Shabanov AV, Nemtsev IV, Stolyarov DP, Dryganov DB, Sakhnov EV, Shishatskaya EI. Screening of biopolymeric materials for cardiovascular surgery toxicity-Evaluation of their surface relief with assessment of morphological aspects of monocyte/macrophage polarization in atherosclerosis patients. Toxicol Rep 2018; 6:74-90. [PMID: 30581762 PMCID: PMC6297908 DOI: 10.1016/j.toxrep.2018.11.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 12/16/2022] Open
Abstract
The micro- and nano-relief of substrates from heteropolymeric samples of PHAs varies because to their monomeric composition. Substrates surface reliefs determine variability of cell morphology, mothing activity, and fusion into multynucleous cells. Biological activity of polymers surface reliefs depends on status of Mn-population (cells isolated before or after stenting).
The morphotypes of human macrophages (MPh) were studied in the culture on nano-structured biopolymer substrates, made from polyhydroxyalcanoates (PHAs) of five various monomer compositions, followed by the solvent evaporation. Its surface relief, which was further in direct contact with human cells in vitro, was analyzed by atomic force microscopy (AFM) and scanning electron microscopy (SEM). It was shown, that the features of the micro/nano relief depend on the monomeric composition of the polymer substrates. Monocytes (MN) of patients with atherosclerosis and cardiac ischemia, undergoing stenting and conventional anti-atherosclerotic therapy, were harvested prior and after stenting. MN were isolated and cultured, with the transformation into MPh in direct contact with biopolymer culture substrates with different monomer composition and nano-reliefs, and transformed into MPh, in comparison with the same process on standard culture plastic. Sub-populations of cells with characteristic morphology in each phenotypic class were described, and their quantitative ratios for each sample of polymers were counted as an intermediate result in the development of “smart” material for cardiovascular devices. The results obtained allow us to assume, that the processes of MPh differentiation and polarization in vitro depend not only on the features of the micro/nano relief of biopolymer substrates, but also on the initial state of MN in vivo and general response of patients.
Collapse
Key Words
- AFM, atomic force microscopy
- Atherosclerosis
- Cell morphology
- Intravascular stenting
- MN, monocytes
- MOC, mononuclear cells
- MPh, macrophages
- MUC, multinucleated cells
- Macrophages
- Monocytes
- P(3HB), poly-3-hydroxybutyrate
- P(3HB/3HV), copolymers of 3-hydroxybutyrate and 3-hydroxyvalerate
- P(3HB/3HV/3HHx), copolymers of 3-hydroxybutyrate, 3-hydroxyvalerate and 3-hydroxyhexanoate
- P(3HB/3HV/4HB/3HHx), copolymers of 3-hydroxybutyrate, 3-hydroxyvalerate, 4-hydroxybutyrate and 3-hydroxyhexanoate
- P(3HB/4HB), copolymers of 3-hydroxybutyrate and 4-hydroxybutyrate
- PHAs, polyhydroxyalcanoates
- Polyhydroxyalkanoates
- SEM, scanning electron microscopy
Collapse
Affiliation(s)
| | | | - Elena D. Nikolaeva
- Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Alexander V. Shabanov
- L.V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, 50/38 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Ivan V. Nemtsev
- Federal Research Center Krasnoyarsk Scientific Center of the Siberian Branch of the Russian Academy of Sciences, 50 Akademgorodok, Krasnoyarsk, 660036, Russia
| | - Dmitry P. Stolyarov
- Federal Center for Cardiovascular Surgery, 45 Karaulnaya, Krasnoyarsk, 660020, Russia
| | - Dmitry B. Dryganov
- Federal Center for Cardiovascular Surgery, 45 Karaulnaya, Krasnoyarsk, 660020, Russia
| | - Eugene V. Sakhnov
- Federal Center for Cardiovascular Surgery, 45 Karaulnaya, Krasnoyarsk, 660020, Russia
| | - Ekaterina I. Shishatskaya
- Siberian Federal University, 79, Svobodny av., Krasnoyarsk, 660041, Russia
- Institute of Biophysics, Siberian Branch of the Russian Academy of Sciences, 50/50 Akademgorodok, Krasnoyarsk, 660036, Russia
- Corresponding author at: Siberian Federal University, 79, Svobodny av., Krasnoyarsk, 660041, Russia.
| |
Collapse
|
20
|
Abelson B, Sun D, Que L, Nebel RA, Baker D, Popiel P, Amundsen CL, Chai T, Close C, DiSanto M, Fraser MO, Kielb SJ, Kuchel G, Mueller ER, Palmer MH, Parker-Autry C, Wolfe AJ, Damaser MS. Sex differences in lower urinary tract biology and physiology. Biol Sex Differ 2018; 9:45. [PMID: 30343668 PMCID: PMC6196569 DOI: 10.1186/s13293-018-0204-8] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/26/2018] [Indexed: 12/12/2022] Open
Abstract
Females and males differ significantly in gross anatomy and physiology of the lower urinary tract, and these differences are commonly discussed in the medical and scientific literature. However, less attention is dedicated to investigating the varied development, function, and biology between females and males on a cellular level. Recognizing that cell biology is not uniform, especially in the lower urinary tract of females and males, is crucial for providing context and relevance for diverse fields of biomedical investigation. This review serves to characterize the current understanding of biological sex differences between female and male lower urinary tracts, while identifying areas for future research. First, the differences in overall cell populations are discussed in the detrusor smooth muscle, urothelium, and trigone. Second, the urethra is discussed, including anatomic discussions of the female and male urethra followed by discussions of cellular differences in the urothelial and muscular layers. The pelvic floor is then reviewed, followed by an examination of the sex differences in hormonal regulation, the urinary tract microbiome, and the reticuloendothelial system. Understanding the complex and dynamic development, anatomy, and physiology of the lower urinary tract should be contextualized by the sex differences described in this review.
Collapse
Affiliation(s)
- Benjamin Abelson
- Glickman Urological and Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Daniel Sun
- Glickman Urological and Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Lauren Que
- Department of Biophysics and Biophysical Chemistry, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Dylan Baker
- UConn Center on Aging, University of Connecticut, 263 Farmington, Farmington, CT, USA
| | - Patrick Popiel
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Cindy L Amundsen
- Department of Obstetrics and Gynecology, Division of Urogynecology and Reconstructive Surgery, Duke University, Durham, NC, USA
| | - Toby Chai
- Department of Obstetrics, Gynecology & Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA.,Department of Urology, Yale School of Medicine, New Haven, CT, USA
| | | | - Michael DiSanto
- Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, USA
| | - Matthew O Fraser
- Department of Surgery, Division of Urology, Duke University Medical Center, Durham, NC, USA
| | - Stephanie J Kielb
- Department of Urology and Obstetrics and Gynecology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - George Kuchel
- UConn Center on Aging, University of Connecticut, 263 Farmington, Farmington, CT, USA
| | - Elizabeth R Mueller
- Department of Urology, Loyola University Chicago, Maywood, IL, USA.,Department of Obstetrics/Gynecology, Loyola University Chicago, Maywood, IL, USA
| | - Mary H Palmer
- School of Nursing, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Candace Parker-Autry
- Department of Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Urology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Alan J Wolfe
- Department of Microbiology and Immunology, Loyola University Chicago, Health Sciences Division, Stritch School of Medicine, Maywood, IL, 60153, USA
| | - Margot S Damaser
- Glickman Urological and Kidney Institute, Cleveland Clinic Foundation, Cleveland, OH, USA. .,Department of Biomedical Engineering, Lerner Research Institute, The Cleveland Clinic, 9500 Euclid Avenue, ND20, Cleveland, OH, 44195, USA. .,Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA.
| |
Collapse
|
21
|
Pohl J, Volke JK, Thiebes S, Brenzel A, Fuchs K, Beziere N, Ehrlichmann W, Pichler BJ, Squire A, Gueler F, Engel DR. CCR2‐dependent Gr1
high
monocytes promote kidney injury in shiga toxin‐induced hemolytic uremic syndrome in mice. Eur J Immunol 2018; 48:990-1000. [DOI: 10.1002/eji.201747138] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 12/18/2017] [Accepted: 02/05/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Judith‐Mira Pohl
- Institute of Experimental Immunology and ImagingUniversity Duisburg‐Essen and University Hospital Essen Essen Germany
| | - Julia K. Volke
- Institute of Experimental Immunology and ImagingUniversity Duisburg‐Essen and University Hospital Essen Essen Germany
| | - Stephanie Thiebes
- Institute of Experimental Immunology and ImagingUniversity Duisburg‐Essen and University Hospital Essen Essen Germany
| | - Alexandra Brenzel
- Institute of Experimental Immunology and ImagingUniversity Duisburg‐Essen and University Hospital Essen Essen Germany
| | - Kerstin Fuchs
- Werner Siemens Imaging CenterDepartment of Preclinical Imaging and RadiopharmacyEberhard Karls University of Tuebingen Tuebingen Germany
| | - Nicolas Beziere
- Werner Siemens Imaging CenterDepartment of Preclinical Imaging and RadiopharmacyEberhard Karls University of Tuebingen Tuebingen Germany
| | - Walter Ehrlichmann
- Werner Siemens Imaging CenterDepartment of Preclinical Imaging and RadiopharmacyEberhard Karls University of Tuebingen Tuebingen Germany
| | - Bernd J. Pichler
- Werner Siemens Imaging CenterDepartment of Preclinical Imaging and RadiopharmacyEberhard Karls University of Tuebingen Tuebingen Germany
| | - Anthony Squire
- Institute of Experimental Immunology and ImagingUniversity Duisburg‐Essen and University Hospital Essen Essen Germany
| | - Faikah Gueler
- Department of Nephrology and HypertensionHannover Medical School Hannover Germany
| | - Daniel R. Engel
- Institute of Experimental Immunology and ImagingUniversity Duisburg‐Essen and University Hospital Essen Essen Germany
| |
Collapse
|
22
|
Sintsova A, Smith S, Subashchandrabose S, Mobley HL. Role of Ethanolamine Utilization Genes in Host Colonization during Urinary Tract Infection. Infect Immun 2018; 86:e00542-17. [PMID: 29229730 PMCID: PMC5820945 DOI: 10.1128/iai.00542-17] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 12/05/2017] [Indexed: 11/20/2022] Open
Abstract
Urinary tract infection (UTI) is the second most common infection in humans, making it a global health priority. Nearly half of all women will experience a symptomatic UTI, with uropathogenic Escherichia coli (UPEC) being the major causative agent of the infection. Although there has been extensive research on UPEC virulence determinants, the importance of host-specific metabolism remains understudied. We report here that UPEC upregulates the expression of ethanolamine utilization genes during uncomplicated UTIs in humans. We further show that UPEC ethanolamine metabolism is required for effective bladder colonization in the mouse model of ascending UTI and is dispensable for bladder colonization in an immunocompromised mouse model of UTI. We demonstrate that although ethanolamine metabolism mutants do not show increased susceptibility to antimicrobial responses of neutrophils, this metabolic pathway is important for surviving the innate immune system during UTI. This study reveals a novel aspect of UPEC metabolism in the host and provides evidence for an underappreciated link between bacterial metabolism and the host immune response.
Collapse
Affiliation(s)
- Anna Sintsova
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | - Sara Smith
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Harry L Mobley
- Department of Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan, USA
| |
Collapse
|
23
|
Chistiakov DA, Grechko AV, Myasoedova VA, Melnichenko AA, Orekhov AN. The role of monocytosis and neutrophilia in atherosclerosis. J Cell Mol Med 2018; 22:1366-1382. [PMID: 29364567 PMCID: PMC5824421 DOI: 10.1111/jcmm.13462] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 10/09/2017] [Indexed: 12/12/2022] Open
Abstract
Monocytosis and neutrophilia are frequent events in atherosclerosis. These phenomena arise from the increased proliferation of hematopoietic stem and multipotential progenitor cells (HSPCs) and HSPC mobilization from the bone marrow to other immune organs and circulation. High cholesterol and inflammatory signals promote HSPC proliferation and preferential differentiation to the myeloid precursors (i.e., myelopoiesis) that than give rise to pro-inflammatory immune cells. These cells accumulate in the plaques thereby enhancing vascular inflammation and contributing to further lesion progression. Studies in animal models of atherosclerosis showed that manipulation with HSPC proliferation and differentiation through the activation of LXR-dependent mechanisms and restoration of cholesterol efflux may have a significant therapeutic potential.
Collapse
MESH Headings
- Animals
- Atherosclerosis/genetics
- Atherosclerosis/immunology
- Atherosclerosis/pathology
- Bone Marrow/immunology
- Bone Marrow/pathology
- Cell Differentiation
- Cell Proliferation
- Cholesterol/immunology
- Disease Models, Animal
- Gene Expression Regulation
- Hematopoietic Stem Cells/immunology
- Hematopoietic Stem Cells/pathology
- Humans
- Hypercholesterolemia/genetics
- Hypercholesterolemia/immunology
- Hypercholesterolemia/pathology
- Liver X Receptors/genetics
- Liver X Receptors/immunology
- Mice
- Monocytes/immunology
- Monocytes/pathology
- Multipotent Stem Cells/immunology
- Multipotent Stem Cells/pathology
- Neutrophils/immunology
- Neutrophils/pathology
- Nuclear Receptor Subfamily 4, Group A, Member 1/deficiency
- Nuclear Receptor Subfamily 4, Group A, Member 1/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 1/immunology
- Plaque, Atherosclerotic/genetics
- Plaque, Atherosclerotic/immunology
- Plaque, Atherosclerotic/pathology
Collapse
Affiliation(s)
- Dimitry A. Chistiakov
- Department of NeurochemistryDivision of Basic and Applied NeurobiologySerbsky Federal Medical Research Center of Psychiatry and NarcologyMoscowRussia
| | - Andrey V. Grechko
- Federal Scientific Clinical Center for Resuscitation and RehabilitationMoscowRussia
| | - Veronika A. Myasoedova
- Skolkovo Innovative CenterInstitute for Atherosclerosis ResearchMoscowRussia
- Laboratory of AngiopathologyInstitute of General Pathology and PathophysiologyRussian Academy of SciencesMoscowRussia
| | - Alexandra A. Melnichenko
- Skolkovo Innovative CenterInstitute for Atherosclerosis ResearchMoscowRussia
- Laboratory of AngiopathologyInstitute of General Pathology and PathophysiologyRussian Academy of SciencesMoscowRussia
| | - Alexander N. Orekhov
- Skolkovo Innovative CenterInstitute for Atherosclerosis ResearchMoscowRussia
- Laboratory of AngiopathologyInstitute of General Pathology and PathophysiologyRussian Academy of SciencesMoscowRussia
| |
Collapse
|
24
|
Uster S, Coelho FM, Aeberli D, Stein JV, Hofstetter W, Engelhardt B, Seitz M. TNFα blockade mediates bone protection in antigen-induced arthritis by reducing osteoclast precursor supply. Bone 2018; 107:56-65. [PMID: 29081378 DOI: 10.1016/j.bone.2017.10.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/12/2017] [Accepted: 10/23/2017] [Indexed: 01/18/2023]
Abstract
Bone protective effects of TNFα inhibition in rheumatoid arthritis are thought to be mediated by inhibiting synovial osteoclast differentiation and activity. However, it has not been addressed, if TNFα inhibitors alter the pool of peripheral osteoclast precursor cells (OPCs). Here, we blocked TNFα function in C57BL/6 mice with antigen induced arthritis (AIA) using the soluble TNFα receptor etanercept. Synovial bone lesions and osteoclasts were markedly reduced upon Etanercept in the early chronic phase of AIA. Unexpectedly this was not associated with a reduced recruitment of circulating OPCs to the arthritic joint nor to reduced synovial inflammation. In contrast we found that OPC numbers in bone marrow and blood were significantly reduced. Overall our study suggests that arrest of osteoclast mediated bone lesions upon inhibition of TNFα is, at least initially, based on reduced OPC availability in the periphery, and not on OPC recruitment or local anti-inflammatory effects in the arthritic joint.
Collapse
Affiliation(s)
- Stephanie Uster
- Department of Rheumatology, Immunology & Allergology, University Hospital, Bern, Switzerland; Theodor Kocher Institute, University of Bern, Bern, Switzerland; Graduate School for Cellular and Biomedical Sciences, University of Bern, Bern, Switzerland
| | | | - Daniel Aeberli
- Department of Rheumatology, Immunology & Allergology, University Hospital, Bern, Switzerland
| | - Jens V Stein
- Theodor Kocher Institute, University of Bern, Bern, Switzerland
| | - Wilhelm Hofstetter
- Group of Bone Biology & Orthopedic Research, Department for Biomedical Research, University of Bern, Bern, Switzerland
| | | | - Michael Seitz
- Department of Rheumatology, Immunology & Allergology, University Hospital, Bern, Switzerland.
| |
Collapse
|
25
|
Song P, Zhang J, Zhang Y, Shu Z, Xu P, He L, Yang C, Zhang J, Wang H, Li Y, Li Q. Hepatic recruitment of CD11b+Ly6C+ inflammatory monocytes promotes hepatic ischemia/reperfusion injury. Int J Mol Med 2017; 41:935-945. [PMID: 29251315 PMCID: PMC5752159 DOI: 10.3892/ijmm.2017.3315] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 11/24/2017] [Indexed: 01/09/2023] Open
Abstract
Monocytes infiltrate damaged liver tissue during noninfectious liver injury and often have dual roles, perpetuating inflammation and promoting resolution of inflammation and fibrosis. However, how monocyte subsets distribute and are differentially recruited in the liver remain unclear. In the current study, the subpopulations of infiltrating monocytes were examined following liver ischemia/reperfusion (I/R) injury in mice using flow cytometry. CD11b+Ly6C high (Ly6Chi) cells (inflammatory monocytes) and CD11b+Ly6C low cells (reparative monocytes) were recruited into the liver following I/R injury. Treatment with clodronate-loaded liposomes, which transiently deplete systemic macrophages, alleviated hepatic damage. Mice genetically deficient in C-C motif chemokine ligand 2 (CCL2), or its receptor C-C chemokine receptor 2 (CCR2), exhibited diminished hepatic damage compared with wild-type mice following I/R, by controlling intrahepatic inflammatory Ly6Chi monocyte accumulation. In addition, the CCR2 specific inhibitor RS504393 alleviated hepatic I/R injury. The results suggest that the CCR2/ CCL2 axis an important role in monocyte infiltration and may represent a novel target for the treatment of liver I/R injury.
Collapse
Affiliation(s)
- Peng Song
- Department of Vascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Junbin Zhang
- Department of Emergency Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Yunwei Zhang
- Department of Emergency Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Zhiping Shu
- Department of Nuclear Medicine, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Peng Xu
- Department of Emergency Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Long He
- Department of Clinical Laboratory, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Chao Yang
- Department of Vascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Jinxiang Zhang
- Department of Emergency Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Hui Wang
- Department of Genetics, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Yiqing Li
- Department of Vascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| | - Qin Li
- Department of Vascular Surgery, Union Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430033 P.R. China
| |
Collapse
|
26
|
Domínguez-Andrés J, Feo-Lucas L, Minguito de la Escalera M, González L, López-Bravo M, Ardavín C. Inflammatory Ly6C high Monocytes Protect against Candidiasis through IL-15-Driven NK Cell/Neutrophil Activation. Immunity 2017; 46:1059-1072.e4. [PMID: 28636955 DOI: 10.1016/j.immuni.2017.05.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neutrophils play a crucial role in defense against systemic candidiasis, a disease associated with a high mortality rate in patients receiving immunosuppressive therapy, although the early immune mechanisms that boost the candidacidal activity of neutrophils remain to be defined in depth. Here, we used a murine model of systemic candidiasis to explore the role of inflammatory Ly6Chigh monocytes in NK cell-mediated neutrophil activation during the innate immune response against C. albicans. We found that efficient anti-Candida immunity required a collaborative response between the spleen and kidney, which relied on type I interferon-dependent IL-15 production by spleen inflammatory Ly6Chigh monocytes to drive efficient activation and GM-CSF release by spleen NK cells; this in turn was necessary to boost the Candida killing potential of kidney neutrophils. Our findings unveil a role for IL-15 as a critical mediator in defense against systemic candidiasis and hold promise for the design of IL-15-based antifungal immunotherapies.
Collapse
|
27
|
Gasco S, Zaragoza P, García-Redondo A, Calvo AC, Osta R. Inflammatory and non-inflammatory monocytes as novel prognostic biomarkers of survival in SOD1G93A mouse model of Amyotrophic Lateral Sclerosis. PLoS One 2017; 12:e0184626. [PMID: 28886177 PMCID: PMC5591000 DOI: 10.1371/journal.pone.0184626] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Accepted: 08/28/2017] [Indexed: 12/13/2022] Open
Abstract
Amyotrophic Lateral Sclerosis (ALS) has lately become a suitable scenario to study the interplay between the hematopoietic system and disease progression. Recent studies in C9orf72 null mice have demonstrated that C9orf72 is necessary for the normal function of myeloid cells. In this study, we aimed to analyze in depth the connection between the hematopoietic system and secondary lymphoid (spleen) and non-lymphoid (liver and skeletal muscle) organs and tissues along the disease progression in the transgenic SOD1G93A mice. Our findings suggested that the inflammatory response due to the neurodegeneration in this animal model affected all three organs and tissues, especially the liver and the skeletal muscle. However, the liver was able to compensate this inflammatory response by means of the action of non-inflammatory monocytes, while in the skeletal muscle inflammatory monocytes prompted a further inflammation process until the terminal state of the animals. Interestingly, in blood, a positive correlation was found between non-inflammatory monocytes and survival of the transgenic SOD1G93A mice, while the contrary (a negative correlation) was found in the case of inflammatory monocytes, supporting their potential role as biomarkers of disease progression and survival in this animal model. These findings could prompt future translational studies in ALS patients, promoting the identification of new reliable biomarkers of disease progression.
Collapse
Affiliation(s)
- Samanta Gasco
- LAGENBIO, Veterinary Faculty of Zaragoza, Instituto Agroalimentario de Aragón (I2A), CITA, Health Research Institute of Aragon (IIS). University of Zaragoza, Zaragoza, Spain
- * E-mail:
| | - Pilar Zaragoza
- LAGENBIO, Veterinary Faculty of Zaragoza, Instituto Agroalimentario de Aragón (I2A), CITA, Health Research Institute of Aragon (IIS). University of Zaragoza, Zaragoza, Spain
| | - Alberto García-Redondo
- Biochemistry Department, CIBERER U-723. Health Research Institute, October 12th Hospital, Madrid, Spain
| | - Ana C. Calvo
- LAGENBIO, Veterinary Faculty of Zaragoza, Instituto Agroalimentario de Aragón (I2A), CITA, Health Research Institute of Aragon (IIS). University of Zaragoza, Zaragoza, Spain
| | - Rosario Osta
- LAGENBIO, Veterinary Faculty of Zaragoza, Instituto Agroalimentario de Aragón (I2A), CITA, Health Research Institute of Aragon (IIS). University of Zaragoza, Zaragoza, Spain
| |
Collapse
|
28
|
França CN, Izar MC, Hortêncio MN, do Amaral JB, Ferreira CE, Tuleta ID, Fonseca FA. Monocyte subtypes and the CCR2 chemokine receptor in cardiovascular disease. Clin Sci (Lond) 2017; 131:1215-24. [DOI: 10.1042/cs20170009] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 02/17/2017] [Accepted: 02/24/2017] [Indexed: 12/14/2022]
Abstract
Monocytes circulate in the blood and migrate to inflammatory tissues, but their functions can be either detrimental or beneficial, depending on their phenotypes. In humans, classical monocytes are inflammatory cluster of differentiation (CD)14++CD16−CCR2++ cells originated from the bone marrow or spleen reservoirs and comprise ≥92% of monocytes. Intermediate monocytes (CD14++CD16+CCR2+) are involved in the production of anti-inflammatory cytokines [such as interleukin (IL)-10], reactive oxygen species (ROS), and proinflammatory mediators [such as tumor necrosis factor-α (TNF-α) and IL-1β). Nonclassical monocytes (CD14+CD16++CCR2−) are patrolling cells involved in tissue repair and debris removal from the vasculature. Many studies in both humans and animals have shown the importance of monocyte chemoattractant protein-1 (MCP-1) and its receptor [chemokine receptor of MCP-1 (CCR2)] in pathologies, such as atherosclerosis and myocardial infarction (MI). This review presents the importance of these monocyte subsets in cardiovascular diseases (CVDs), and sheds light on new strategies for the blocking of the MCP-1/CCR2 axis as a therapeutic goal for treating vascular disorders.
Collapse
|
29
|
Owusu-Boaitey N, Bauckman KA, Zhang T, Mysorekar IU. Macrophagic control of the response to uropathogenic E. coli infection by regulation of iron retention in an IL-6-dependent manner. Immun Inflamm Dis 2016; 4:413-426. [PMID: 27980776 PMCID: PMC5134725 DOI: 10.1002/iid3.123] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 07/26/2016] [Accepted: 07/28/2016] [Indexed: 12/16/2022]
Abstract
Introduction Uropathogenic Escherichia coli (UPEC), the causative agent of over 85% of urinary tract infections (UTIs), elaborate a number of siderophores to chelate iron from the host. On the other hand, the host immune imperative is to limit the availability of iron to the bacteria. Little is known regarding the mechanisms underlying this host‐iron‐UPEC interaction. Our objective was to determine whether macrophages, in response to UPEC infection, retain extracellular siderophore‐bound and free iron, thus limiting the ability of UPEC to access iron. Methods Quantitative PCR, immunoblotting analysis, and gene expression analysis of wild type and IL‐6‐deficient macrophages was performed. Results We found that (1) macrophages upon UPEC infection increased expression of lipocalin 2, a siderophore‐binding molecule, of Dmt1, a molecule that facilitates macrophage uptake of free iron, and of the intracellular iron cargo molecule ferritin, and decreased expression of the iron exporter ferroportin; (2) bladder macrophages regulate expression of genes involved in iron retention upon UPEC infection; (3) IL‐6, a cytokine known to play an important role in regulating host iron homeostasis as well as host defense to UPEC, regulates this process, in part by promoting production of lipocalin 2; and finally, (4) inhibition of IL‐6 signaling genetically and by neutralizing antibodies against the IL‐6 receptor, promoted intra‐macrophagic UPEC growth in the presence of excess iron. Conclusions Together, our study suggests that macrophages retain siderophore‐bound and free iron in response to UPEC and IL‐6 signaling is necessary for macrophages to limit the growth of UPEC in the presence of excess iron. IL‐6 signaling and iron regulation is one mechanism by which macrophages may mediate UPEC clearance.
Collapse
Affiliation(s)
- Nana Owusu-Boaitey
- Department of Obstetrics and Gynecology Washington University School of Medicine St. Louis Missouri
| | - Kyle A Bauckman
- Department of Obstetrics and Gynecology Washington University School of Medicine St. Louis Missouri
| | - Tingxuan Zhang
- Department of Obstetrics and Gynecology Washington University School of Medicine St. Louis Missouri
| | - Indira U Mysorekar
- Department of Obstetrics and GynecologyWashington University School of MedicineSt. LouisMissouri; Department of Pathology and ImmunologyWashington University School of MedicineSt. LouisMissouri
| |
Collapse
|
30
|
Sundac L, Dando SJ, Sullivan MJ, Derrington P, Gerrard J, Ulett GC. Protein-based profiling of the immune response to uropathogenicEscherichia coliin adult patients immediately following hospital admission for acute cystitis. Pathog Dis 2016; 74:ftw062. [DOI: 10.1093/femspd/ftw062] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/14/2016] [Indexed: 01/19/2023] Open
|
31
|
Franken L, Schiwon M, Kurts C. Macrophages: sentinels and regulators of the immune system. Cell Microbiol 2016; 18:475-87. [PMID: 26880038 DOI: 10.1111/cmi.12580] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/03/2016] [Accepted: 02/11/2016] [Indexed: 12/15/2022]
Abstract
The important role of macrophages in host defense against a variety of pathogens has long been recognized and has been documented and reviewed in numerous publications. Recently, it has become clear that tissue macrophages are not entirely derived from monocytes, as has been assumed for a long time, but rather show an ontogenetic dichotomy in most tissues: while part of the tissue macrophages are derived from monocytes, a major subset is prenatally seeded from the yolk sac. The latter subset shows a remarkable longevity and is maintained by self-renewal in the adult animal. This paradigm shift poses interesting questions: are these two macrophage subsets functionally equivalent cells that are recruited into the tissue at different development stages, or are both macrophage subsets discrete cell types with distinct functions, which have to exist side by side? Is the functional specialization that can be observed in most macrophages due to their lineage or due to their anatomical niche? This review will give an overview about what we know of macrophage ontogeny and will discuss the influence of the macrophage lineage and location on their functional specialization.
Collapse
Affiliation(s)
- Lars Franken
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms-University, Sigmund-Freud-Str. 25, Bonn, 53105, Germany
| | - Marzena Schiwon
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms-University, Sigmund-Freud-Str. 25, Bonn, 53105, Germany
| | - Christian Kurts
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms-University, Sigmund-Freud-Str. 25, Bonn, 53105, Germany
| |
Collapse
|
32
|
Costa DL, Lima-Júnior DS, Nascimento MS, Sacramento LA, Almeida RP, Carregaro V, Silva JS. CCR2 signaling contributes to the differentiation of protective inflammatory dendritic cells in Leishmania braziliensis infection. J Leukoc Biol 2016; 100:423-32. [PMID: 26884611 DOI: 10.1189/jlb.4a0715-288r] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 01/26/2016] [Indexed: 12/11/2022] Open
Abstract
In vertebrate hosts, Leishmania braziliensis parasites infect mainly mononuclear phagocytic system cells, which when activated by T helper cell type 1 cytokines produce nitric oxide and kill the pathogens. Chemokine (C-C motif) receptor 2 is a chemokine receptor that binds primarily chemokine (C-C motif) ligand 2 and has an important role in the recruitment of monocytic phagocytes. Although it has been reported that Leishmania braziliensis infection induces CCR2 expression in the lesions, the role of CCR2 during Leishmania braziliensis infection remains unknown. Here, we showed that CCR2 has a role in mediating protection against Leishmania braziliensis infection in mice. The absence of CCR2 resulted in increased susceptibility to infection and was associated with low amounts of Ly6C(+) inflammatory dendritic cells in the lesions, which we found to be the major sources of tumor necrosis factor production and induced nitric oxide synthase expression in C57BL/6 mice lesions. Consequently, CCR2(-/-) mice showed decreased tumor necrosis factor production and induced nitric oxide synthase expression, resulting in impaired parasite elimination. We also demonstrated that CCR2 has a role in directly mediating the differentiation of monocytes into inflammatory dendritic cells at the infection sites, contributing to the accumulation of inflammatory dendritic cells in Leishmania braziliensis lesions and subsequent control of parasite replication. Therefore, these data provide new information on the role of chemokines during the immune response to infections and identify a potential target for therapeutic interventions in cutaneous leishmaniasis.
Collapse
Affiliation(s)
- Diego L Costa
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; and
| | - Djalma S Lima-Júnior
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; and
| | - Manuela S Nascimento
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; and
| | - Laís A Sacramento
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; and
| | - Roque P Almeida
- Department of Internal Medicine and Pathology, Center for Biological and Health Sciences, Federal University of Sergipe, Aracajú, SE, Brazil
| | - Vanessa Carregaro
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; and
| | - João S Silva
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School, University of São Paulo, Ribeirão Preto, SP, Brazil; and
| |
Collapse
|
33
|
Zec K, Volke J, Vijitha N, Thiebes S, Gunzer M, Kurts C, Engel DR. Neutrophil Migration into the Infected Uroepithelium Is Regulated by the Crosstalk between Resident and Helper Macrophages. Pathogens 2016; 5:E15. [PMID: 26861402 DOI: 10.3390/pathogens5010015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 01/28/2016] [Accepted: 01/28/2016] [Indexed: 11/16/2022] Open
Abstract
The antibacterial defense against infections depends on the cooperation between distinct phagocytes of the innate immune system, namely macrophages and neutrophils. However, the mechanisms driving this cooperation are incompletely understood. In this study we describe the crosstalk between Ly6C+ and Ly6C− macrophage-subtypes and neutrophils in the context of urinary tract infection (UTI) with uropathogenic E. coli (UPEC). Ly6C− macrophages acted as tissue resident sentinels and attracted circulating phagocytes by chemokines. Ly6C+ macrophages produced tumor necrosis factor (TNF) that licensed Ly6C− macrophages to release preformed CXCL2, which in turn caused matrix metalloproteinases (MMP-9) secretion by neutrophils to enable transepithelial migration.
Collapse
|
34
|
Yang Z, Wang J, Yu Y, Li Z. Gene silencing of MCP-1 prevents microglial activation and inflammatory injury after intracerebral hemorrhage. Int Immunopharmacol 2016; 33:18-23. [PMID: 26851629 DOI: 10.1016/j.intimp.2016.01.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 01/13/2016] [Accepted: 01/15/2016] [Indexed: 12/27/2022]
Abstract
Microglia are activated after intracerebral hemorrhage and induce neuron death by releasing proinflammatory cytokines and chemokines. However, the related mechanism of microglia activation in such conditions remains elusive. MCP-1, the ligand of CCR2 expressed in the central nervous system, could promote microglia proliferation, survival and cytokine secretion. According to the previous findings, we make a hypothesis that whether alternation of MCP-1 level could attenuate microglia activation and toxicity to neuron in intracerebral hemorrhage. To identify that, we interfere with the MCP-1 expression of microglia by RNAi technology, and coculture the microglia and neuron in ICH. The results demonstrated that MCP-1 RNAi inhibited TNF-α, IL-1β and IL-6 expression in microglia and attenuated neuron injury. In conclusion, the present study suggests that MCP-1 might promote ICH induced microglia activation and toxicity to neuron, and MCP-1 RNAi might provide promising therapeutical strategy for ICH.
Collapse
|
35
|
Moravan MJ, Olschowka JA, Williams JP, O'Banion MK. Brain radiation injury leads to a dose- and time-dependent recruitment of peripheral myeloid cells that depends on CCR2 signaling. J Neuroinflammation 2016; 13:30. [PMID: 26842770 PMCID: PMC4738790 DOI: 10.1186/s12974-016-0496-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2015] [Accepted: 01/26/2016] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Cranial radiotherapy is used to treat tumors of the central nervous system (CNS), as well as non-neoplastic conditions such as arterio-venous malformations; however, its use is limited by the tolerance of adjacent normal CNS tissue, which can lead to devastating long-term sequelae for patients. Despite decades of research, the underlying mechanisms by which radiation induces CNS tissue injury remain unclear. Neuroinflammation and immune cell infiltration are a recognized component of the CNS radiation response; however, the extent and mechanisms by which bone marrow-derived (BMD) immune cells participate in late radiation injury is unknown. Thus, we set out to better characterize the response and tested the hypothesis that C-C chemokine receptor type 2 (CCR2) signaling was required for myeloid cell recruitment following brain irradiation. METHODS We used young adult C57BL/6 male bone marrow chimeric mice created with donor mice that constitutively express enhanced green fluorescent protein (eGFP). The head was shielded to avoid brain radiation exposure during chimera construction. Radiation dose and time response studies were conducted in wild-type chimeras, and additional experiments were performed with chimeras created using donor marrow from CCR2 deficient, eGFP-expressing mice. Infiltrating eGFP+ cells were identified and quantified using immunofluorescent microscopy. RESULTS Brain irradiation resulted in a dose- and time-dependent infiltration of BMD immune cells (predominately myeloid) that began at 1 month and persisted until 6 months following ≥15 Gy brain irradiation. Infiltration was limited to areas that were directly exposed to radiation. CCR2 signaling loss resulted in decreased numbers of infiltrating cells at 6 months that appeared to be restricted to cells also expressing major histocompatibility complex class II molecules. CONCLUSIONS The potential roles played by infiltrating immune cells are of current importance due to increasing interest in immunotherapeutic approaches for cancer treatment and a growing clinical interest in survivorship and quality of life issues. Our findings demonstrate that injury from brain radiation facilitates a dose- and time-dependent recruitment of BMD cells that persists for at least 6 months and, in the case of myeloid cells, is dependent on CCR2 signaling.
Collapse
Affiliation(s)
- Michael J Moravan
- Department of Radiation Oncology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
| | - John A Olschowka
- Department of Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
| | - Jacqueline P Williams
- Department of Radiation Oncology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. .,Department of Environmental Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
| | - M Kerry O'Banion
- Department of Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA. .,Department of Neurology, University of Rochester School of Medicine and Dentistry, Rochester, NY, USA.
| |
Collapse
|
36
|
Meyer C, Hoffmann C, Haas R, Schubert S. The role of the galU gene of uropathogenic Escherichia coli in modulating macrophage TNF-α response. Int J Med Microbiol 2015; 305:893-901. [DOI: 10.1016/j.ijmm.2015.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Revised: 08/04/2015] [Accepted: 09/10/2015] [Indexed: 11/24/2022] Open
|
37
|
Abstract
The urinary tract is constantly exposed to microorganisms that inhabit the gastrointestinal tract, but generally the urinary tract resists infection by gut microorganisms. This resistance to infection is mainly ascribed to the versatility of the innate immune defences in the urinary tract, as the adaptive immune responses are limited particularly when only the lower urinary tract is infected. In recent years, as the strengths and weaknesses of the immune system of the urinary tract have emerged and as the virulence attributes of uropathogens are recognized, several potentially effective and unconventional strategies to contain or prevent urinary tract infections have emerged.
Collapse
Affiliation(s)
- Soman N Abraham
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Pathology, Duke University Medical Center, Durham, North Carolina 27710, USA.,Department of Immunology, Duke University Medical Center, Durham, North Carolina 27710, USA.,Program in Emerging Infectious Diseases, Duke-National University of Singapore, Singapore 169857, Singapore
| | - Yuxuan Miao
- Department of Molecular Genetics and Microbiology, Duke University Medical Center, Durham, North Carolina 27710, USA
| |
Collapse
|
38
|
Carey AJ, Sullivan MJ, Duell BL, Crossman DK, Chattopadhyay D, Brooks AJ, Tan CK, Crowley M, Sweet MJ, Schembri MA, Ulett GC. Uropathogenic Escherichia coli Engages CD14-Dependent Signaling to Enable Bladder-Macrophage-Dependent Control of Acute Urinary Tract Infection. J Infect Dis 2015; 213:659-68. [PMID: 26324782 DOI: 10.1093/infdis/jiv424] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 08/11/2015] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND CD14, a coreceptor for several pattern recognition receptors and a widely used monocyte/macrophage marker, plays a key role in host responses to gram-negative bacteria. Despite the central role of CD14 in the inflammatory response to lipopolysaccharide and other microbial products and in the dissemination of bacteria in some infections, the signaling networks controlled by CD14 during urinary tract infection (UTI) are unknown. METHODS We used uropathogenic Escherichia coli (UPEC) infection of wild-type (WT) C57BL/6 and Cd14(-/-) mice and RNA sequencing to define the CD14-dependent transcriptional signature and the role of CD14 in host defense against UTI in the bladder. RESULTS UPEC induced the upregulation of Cd14 and the monocyte/macrophage-related genes Emr1/F4/80 and Csf1r/c-fms, which was associated with lower UPEC burdens in WT mice, compared with Cd14(-/-) mice. Exacerbation of infection in Cd14(-/-) mice was associated with the absence of a 491-gene transcriptional signature in the bladder that encompassed multiple host networks not previously associated with this receptor. CD14-dependent pathways included immune cell trafficking, differential cytokine production in macrophages, and interleukin 17 signaling. Depletion of monocytes/macrophages in the bladder by administration of liposomal clodronate led to higher UPEC burdens. CONCLUSIONS This study identifies new host protective and signaling roles for CD14 in the bladder during UPEC UTI.
Collapse
Affiliation(s)
- Alison J Carey
- Menzies Health Institute Queensland, Griffith University, Gold Coast School of Medical Science, Griffith University, Gold Coast
| | - Matthew J Sullivan
- Menzies Health Institute Queensland, Griffith University, Gold Coast School of Medical Science, Griffith University, Gold Coast
| | - Benjamin L Duell
- Menzies Health Institute Queensland, Griffith University, Gold Coast School of Medical Science, Griffith University, Gold Coast
| | - David K Crossman
- Heflin Center for Human Genetics, School of Medicine, University of Alabama at Birmingham
| | - Debasish Chattopadhyay
- Division of Infectious Diseases, School of Medicine, University of Alabama at Birmingham
| | - Andrew J Brooks
- University of Queensland Diamantina Institute, The University of Queensland, Translational Research Institute
| | - Chee K Tan
- Menzies Health Institute Queensland, Griffith University, Gold Coast School of Medical Science, Griffith University, Gold Coast
| | - Michael Crowley
- Heflin Center for Human Genetics, School of Medicine, University of Alabama at Birmingham
| | - Matthew J Sweet
- Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, Australia Institute for Molecular Bioscience, University of Queensland, Brisbane, Australia
| | - Mark A Schembri
- Australian Infectious Diseases Research Centre, University of Queensland, Brisbane, Australia School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane, Australia
| | - Glen C Ulett
- Menzies Health Institute Queensland, Griffith University, Gold Coast School of Medical Science, Griffith University, Gold Coast Division of Infectious Diseases, School of Medicine, University of Alabama at Birmingham
| |
Collapse
|
39
|
Abstract
Chemokine receptor CCR2 mediates monocyte mobilization from the bone marrow (BM) and subsequent migration into target tissues. The degree to which CCR2 is differentially expressed in leukocyte subsets, and the contribution of CCR2 to these leukocyte mobilization from the BM are poorly understood. Using red fluorescence protein CCR2 reporter mice, we found heterogeneity in CCR2 expression among leukocyte subsets in varying tissues. CCR2 was highly expressed by inflammatory monocytes, dendritic cells, plasmacytoid dendritic cells and NK cells in all tissues. Unexpectedly, more than 60% of neutrophils expressed CCR2, albeit at low levels. CCR2 expression in T cells, B cells and NK T cells was greatest in the BM compared to other tissues. Genetic CCR2 deficiency markedly sequestered all leukocyte subsets in the BM, with reciprocal reduction noted in the peripheral blood and spleen. CCR2 inhibition via treatment with CCR2 signaling inhibitor propagermanium produced similar effects. Propagermanium also mitigated lipopolysaccharide-induced BM leukocyte egress. Consistent with its functional significance, CCR2 antibody staining revealed surface CCR2 expression within a subset of BM neutrophils. These results demonstrate the central role CCR2 plays in mediating leukocyte mobilization from the BM, and suggest a role for CCR2 inhibition in managing monocytes/macrophages-mediated chronic inflammatory conditions.
Collapse
Affiliation(s)
- Naoki Fujimura
- 1] Departments of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA [2] Department of Vascular Surgery, Saiseikai Central Hospital, Minato-Ku Mita 1-4-17, Tokyo 108-0073, Japan
| | - Baohui Xu
- Departments of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jackson Dalman
- Departments of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Hongping Deng
- Departments of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Kohji Aoyama
- Department of Hygiene and Health Promotion Medicine, Kagoshima University School of Medicine, Sakuragaoka 8-35-1, Kagoshima 890-0075, Japan
| | - Ronald L Dalman
- Departments of Surgery, Stanford University School of Medicine, Stanford, CA 94305, USA
| |
Collapse
|
40
|
Mora-Bau G, Platt AM, van Rooijen N, Randolph GJ, Albert ML, Ingersoll MA. Macrophages Subvert Adaptive Immunity to Urinary Tract Infection. PLoS Pathog 2015; 11:e1005044. [PMID: 26182347 PMCID: PMC4504509 DOI: 10.1371/journal.ppat.1005044] [Citation(s) in RCA: 72] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Accepted: 06/23/2015] [Indexed: 12/24/2022] Open
Abstract
Urinary tract infection (UTI) is one of the most common bacterial infections with frequent recurrence being a major medical challenge. Development of effective therapies has been impeded by the lack of knowledge of events leading to adaptive immunity. Here, we establish conclusive evidence that an adaptive immune response is generated during UTI, yet this response does not establish sterilizing immunity. To investigate the underlying deficiency, we delineated the naïve bladder immune cell compartment, identifying resident macrophages as the most populous immune cell. To evaluate their impact on the establishment of adaptive immune responses following infection, we measured bacterial clearance in mice depleted of either circulating monocytes, which give rise to macrophages, or bladder resident macrophages. Surprisingly, mice depleted of resident macrophages, prior to primary infection, exhibited a nearly 2-log reduction in bacterial burden following secondary challenge compared to untreated animals. This increased bacterial clearance, in the context of a challenge infection, was dependent on lymphocytes. Macrophages were the predominant antigen presenting cell to acquire bacteria post-infection and in their absence, bacterial uptake by dendritic cells was increased almost 2-fold. These data suggest that bacterial uptake by tissue macrophages impedes development of adaptive immune responses during UTI, revealing a novel target for enhancing host responses to bacterial infection of the bladder. Urinary tract infection is a common infection with a high propensity for recurrence. The majority of infections are caused by uropathogenic E. coli, a growing public health concern with increasing prevalence of antibiotic resistant strains. Finding therapeutic options that circumvent the need for antibiotics, while boosting patients’ immune response to infection is desirable to counteract further increases in antibiotic resistance and to provide long-lasting resistance to infection. Currently, little is known about how adaptive immune responses, which typically prevent recurrent infection in other organs, arise from the bladder during urinary tract infection. Here, we investigated the initial interactions between immune cell populations of the bladder and uropathogenic E. coli, finding that macrophages are the principal cell population to engulf bacteria. Interestingly, these same cells appear to inhibit the development of adaptive immunity to the bacteria, as their depletion, prior to primary infection, results in a stronger immune response during bacterial challenge. We found that in the absence of macrophages, dendritic cells, which are the most potent initiators of adaptive immunity, are able to take up more bacteria for presentation. Our study has revealed a mechanism in which specific immune cells may act in a manner detrimental to host immunity.
Collapse
Affiliation(s)
- Gabriela Mora-Bau
- Unité d'Immunobiologie des Cellules Dendritiques, Department of Immunology, Institut Pasteur and INSERM U818, Paris, France
| | - Andrew M Platt
- Department of Gene and Cell Medicine and the Immunology Institute, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Nico van Rooijen
- Department of Molecular Cell Biology, Free University Medical Center, Amsterdam, The Netherlands
| | - Gwendalyn J Randolph
- Department of Gene and Cell Medicine and the Immunology Institute, Mount Sinai School of Medicine, New York, New York, United States of America
| | - Matthew L Albert
- Unité d'Immunobiologie des Cellules Dendritiques, Department of Immunology, Institut Pasteur and INSERM U818, Paris, France
| | - Molly A Ingersoll
- Unité d'Immunobiologie des Cellules Dendritiques, Department of Immunology, Institut Pasteur and INSERM U818, Paris, France
| |
Collapse
|
41
|
Dal-Secco D, Wang J, Zeng Z, Kolaczkowska E, Wong CHY, Petri B, Ransohoff RM, Charo IF, Jenne CN, Kubes P. A dynamic spectrum of monocytes arising from the in situ reprogramming of CCR2+ monocytes at a site of sterile injury. ACTA ACUST UNITED AC 2015; 212:447-56. [PMID: 25800956 PMCID: PMC4387291 DOI: 10.1084/jem.20141539] [Citation(s) in RCA: 317] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Accepted: 02/24/2015] [Indexed: 12/20/2022]
Abstract
Monocytes are recruited from the blood to sites of inflammation, where they contribute to wound healing and tissue repair. There are at least two subsets of monocytes: classical or proinflammatory (CCR2(hi)CX3CR1(low)) and nonclassical, patrolling, or alternative (CCR2(low)CX3CR1(hi)) monocytes. Using spinning-disk confocal intravital microscopy and mice with fluorescent reporters for each of these subsets, we were able to track the dynamic spectrum of monocytes that enter a site of sterile hepatic injury in vivo. We observed that the CCR2(hi)CX3CR1(low) monocytes were recruited early and persisted for at least 48 h, forming a ringlike structure around the injured area. These monocytes transitioned, in situ, from CCR2(hi)Cx3CR1(low) to CX3CR1(hi)CCR2(low) within the ringlike structure and then entered the injury site. This phenotypic conversion was essential for optimal repair. These results demonstrate a local, cytokine driven reprogramming of classic, proinflammatory monocytes into nonclassical or alternative monocytes to facilitate proper wound-healing.
Collapse
Affiliation(s)
- Daniela Dal-Secco
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Jing Wang
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Zhutian Zeng
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Elzbieta Kolaczkowska
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Connie H Y Wong
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Björn Petri
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Richard M Ransohoff
- Neuroinflammation Research Center, Department of Neurosciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195
| | - Israel F Charo
- Gladstone Institute of Cardiovascular Disease and Cardiovascular Research Institute, Department of Medicine, University of California, San Francisco, San Francisco, CA 94143
| | - Craig N Jenne
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| | - Paul Kubes
- Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada Immunology Research Group, Snyder Institute for Chronic Diseases; Department of Microbiology, Immunology, and Infectious Diseases; and Department of Physiology and Pharmacology, University of Calgary, Calgary, Alberta T2N 4N1, Canada
| |
Collapse
|
42
|
Engel DR, Krause TA, Snelgrove SL, Thiebes S, Hickey MJ, Boor P, Kitching AR, Kurts C. CX3CR1 reduces kidney fibrosis by inhibiting local proliferation of profibrotic macrophages. J Immunol 2015; 194:1628-38. [PMID: 25595779 DOI: 10.4049/jimmunol.1402149] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A dense network of macrophages and dendritic cells (DC) expressing the chemokine receptor CX3CR1 populates most tissues. We recently reported that CX3CR1 regulates the abundance of CD11c(+) DC in the kidney and thereby promotes renal inflammation in glomerulonephritis. Given that chronic inflammation usually causes fibrosis, we hypothesized that CX3CR1 deficiency should attenuate renal fibrosis. However, when we tested this hypothesis using the DC-independent murine fibrosis model of unilateral ureteral obstruction, kidney fibrosis was unexpectedly more severe, despite less intrarenal inflammation. Two-photon imaging and flow cytometry revealed in kidneys of CX3CR1-deficient mice more motile Ly6C/Gr-1(+) macrophages. Flow cytometry verified that renal macrophages were more abundant in the absence of CX3CR1 and produced more of the key profibrotic mediator, TGF-β. Macrophages accumulated because of higher intrarenal proliferation, despite reduced monocyte recruitment and higher signs of apoptosis within the kidney. These findings support the theory that tissue macrophage numbers are regulated through local proliferation and identify CX3CR1 as a regulator of such proliferation. Thus, CX3CR1 inhibition should be avoided in DC-independent inflammatory diseases because it may promote fibrosis.
Collapse
Affiliation(s)
- Daniel R Engel
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms University, 53105 Bonn, Germany; Institute for Experimental Immunology and Imaging, University Duisburg-Essen and University Hospital Essen, 45147 Essen, Germany
| | - Torsten A Krause
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms University, 53105 Bonn, Germany
| | - Sarah L Snelgrove
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Clayton, Victoria 3168, Australia
| | - Stephanie Thiebes
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms University, 53105 Bonn, Germany
| | - Michael J Hickey
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Clayton, Victoria 3168, Australia
| | - Peter Boor
- Institute of Pathology, Rheinisch-Westfälische Technische Hochschule, 52074 Aachen, Germany; and Department of Nephrology, Rheinisch-Westfälische Technische Hochschule, 52074 Aachen, Germany
| | - A Richard Kitching
- Centre for Inflammatory Diseases, Department of Medicine, Monash University, Clayton, Victoria 3168, Australia
| | - Christian Kurts
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms University, 53105 Bonn, Germany;
| |
Collapse
|
43
|
Campwala H, Sexton DW, Crossman DC, Fountain SJ. P2Y₆ receptor inhibition perturbs CCL2-evoked signalling in human monocytic and peripheral blood mononuclear cells. J Cell Sci 2014; 127:4964-73. [PMID: 25271060 PMCID: PMC4231309 DOI: 10.1242/jcs.159012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The chemokine CCL2 serves to target circulating monocytes and other leukocytes to tissue during innate immune responses, and modulates the progression of chronic inflammatory disease through activation of the receptor CCR2. Here, we show that co-activation of the P2Y₆ purinergic receptor (encoded by P2RY₆) occurs when THP-1 cells and human peripheral blood mononuclear cells sense CCL2 through CCR2. Furthermore, P2Y₆ receptor activation accounts for ∼80% of the intracellular Ca²⁺ signal evoked by CCL2. Scavenging extracellular nucleotides with apyrase caused a fourfold reduction in THP-1 sensitivity to CCL2, whereas inhibition of CD39-like ectonucleotidases potentiated CCL2-evoked Ca²⁺ responses. Pharmacological inhibition of P2Y₆ impaired CCL2-evoked Ca²⁺ signalling and chemotaxis in peripheral blood mononuclear cells and THP-1 cells. Furthermore, stable P2Y₆ receptor knockdown (of twofold) in THP-1 cells impaired CCL2-evoked Ca²⁺ signalling, chemotaxis and adhesion to TNFα-treated HUVECs. We demonstrate that THP-1 cells rapidly secrete ATP during signalling downstream of the CCL2-CCR2 axis and suggest this might act as a mechanism for P2Y₆ receptor co-activation following CCL2 activation of the CCR2 receptor. The discovery that P2Y₆ receptor mediates leukocyte responsiveness to CCL2 represents a new mechanism by which to modulate CCL2 signals.
Collapse
Affiliation(s)
- Hinnah Campwala
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Darren W Sexton
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - David C Crossman
- Norwich Medical School, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| | - Samuel J Fountain
- School of Biological Sciences, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK
| |
Collapse
|
44
|
Schiwon M, Weisheit C, Franken L, Gutweiler S, Dixit A, Meyer-Schwesinger C, Pohl JM, Maurice NJ, Thiebes S, Lorenz K, Quast T, Fuhrmann M, Baumgarten G, Lohse MJ, Opdenakker G, Bernhagen J, Bucala R, Panzer U, Kolanus W, Gröne HJ, Garbi N, Kastenmüller W, Knolle PA, Kurts C, Engel DR. Crosstalk between sentinel and helper macrophages permits neutrophil migration into infected uroepithelium. Cell 2014; 156:456-68. [PMID: 24485454 DOI: 10.1016/j.cell.2014.01.006] [Citation(s) in RCA: 170] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 10/21/2013] [Accepted: 01/06/2014] [Indexed: 12/16/2022]
Abstract
The phagocytes of the innate immune system, macrophages and neutrophils, contribute to antibacterial defense, but their functional specialization and cooperation is unclear. Here, we report that three distinct phagocyte subsets play highly coordinated roles in bacterial urinary tract infection. Ly6C(-) macrophages acted as tissue-resident sentinels that attracted circulating neutrophils and Ly6C(+) macrophages. Such Ly6C(+) macrophages played a previously undescribed helper role: once recruited to the site of infection, they produced the cytokine TNF, which caused Ly6C(-) macrophages to secrete CXCL2. This chemokine activated matrix metalloproteinase-9 in neutrophils, allowing their entry into the uroepithelium to combat the bacteria. In summary, the sentinel macrophages elicit the powerful antibacterial functions of neutrophils only after confirmation by the helper macrophages, reminiscent of the licensing role of helper T cells in antiviral adaptive immunity. These findings identify helper macrophages and TNF as critical regulators in innate immunity against bacterial infections in epithelia.
Collapse
Affiliation(s)
- Marzena Schiwon
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Christina Weisheit
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany; Clinic for Anesthesiology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Lars Franken
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Sebastian Gutweiler
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Akanksha Dixit
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | | | - Judith-Mira Pohl
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Nicholas J Maurice
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Stephanie Thiebes
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Kristina Lorenz
- Institute of Pharmacology and Toxicology, University of Würzburg, 97078 Würzburg, Germany
| | - Thomas Quast
- Life and Medical Sciences Institute, Friedrich-Wilhelms-Universität, 53115 Bonn, Germany
| | - Martin Fuhrmann
- German Center for Neurodegenerative Diseases (DZNE), 53125 Bonn, Germany
| | - Georg Baumgarten
- Clinic for Anesthesiology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Martin J Lohse
- Institute of Pharmacology and Toxicology, University of Würzburg, 97078 Würzburg, Germany
| | - Ghislain Opdenakker
- Laboratory of Immunobiology, Rega Institute for Medical Research, University of Leuven, 3000 KU Leuven, Belgium
| | - Jürgen Bernhagen
- Institute of Biochemistry and Molecular Cell Biology, RWTH Aachen University, 52062 Aachen, Germany
| | - Rick Bucala
- Yale University School of Medicine, New Haven, CT 06510, USA
| | - Ulf Panzer
- Medizinische Klinik III, University Clinic Hamburg Eppendorf, 20246 Hamburg, Germany
| | - Waldemar Kolanus
- Life and Medical Sciences Institute, Friedrich-Wilhelms-Universität, 53115 Bonn, Germany
| | - Hermann-Josef Gröne
- Cellular and Molecular Pathology, German Cancer Research Center Heidelberg, 69120 Heidelberg, Germany
| | - Natalio Garbi
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Wolfgang Kastenmüller
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Percy A Knolle
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany
| | - Christian Kurts
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany.
| | - Daniel R Engel
- Institute of Experimental Immunology, University Clinic of Bonn, 53127 Bonn, Germany.
| |
Collapse
|
45
|
Krause TA, Alex AF, Engel DR, Kurts C, Eter N. VEGF-production by CCR2-dependent macrophages contributes to laser-induced choroidal neovascularization. PLoS One 2014; 9:e94313. [PMID: 24714223 PMCID: PMC3979804 DOI: 10.1371/journal.pone.0094313] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 03/15/2014] [Indexed: 12/24/2022] Open
Abstract
Age-related macular degeneration (AMD) is the most prevalent cause of blindness in the elderly, and its exsudative subtype critically depends on local production of vascular endothelial growth factor A (VEGF). Mononuclear phagocytes, such as macrophages and microglia cells, can produce VEGF. Their precursors, for example monocytes, can be recruited to sites of inflammation by the chemokine receptor CCR2, and this has been proposed to be important in AMD. To investigate the role of macrophages and CCR2 in AMD, we studied intracellular VEGF content in a laser-induced murine model of choroidal neovascularisation. To this end, we established a technique to quantify the VEGF content in cell subsets from the laser-treated retina and choroid separately. 3 days after laser, macrophage numbers and their VEGF content were substantially elevated in the choroid. Macrophage accumulation was CCR2-dependent, indicating recruitment from the circulation. In the retina, microglia cells were the main VEGF+ phagocyte type. A greater proportion of microglia cells contained VEGF after laser, and this was CCR2-independent. On day 6, VEGF-expressing macrophage numbers had already declined, whereas numbers of VEGF+ microglia cells remained increased. Other sources of VEGF detectable by flow cytometry included in dendritic cells and endothelial cells in both retina and choroid, and Müller cells/astrocytes in the retina. However, their VEGF content was not increased after laser. When we analyzed flatmounts of laser-treated eyes, CCR2-deficient mice showed reduced neovascular areas after 2 weeks, but this difference was not evident 3 weeks after laser. In summary, CCR2-dependent influx of macrophages causes a transient VEGF increase in the choroid. However, macrophages augmented choroidal neovascularization only initially, presumably because VEGF production by CCR2-independent eye cells prevailed at later time points. These findings identify macrophages as a relevant source of VEGF in laser-induced choroidal neovascularization but suggest that the therapeutic efficacy of CCR2-inhibition might be limited.
Collapse
Affiliation(s)
- Torsten A Krause
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms-University, Bonn, Germany
| | - Anne F Alex
- Department of Ophthalmology, University of Münster, Münster, Germany
| | - Daniel R Engel
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms-University, Bonn, Germany
| | - Christian Kurts
- Institute of Experimental Immunology, Rheinische Friedrich-Wilhelms-University, Bonn, Germany
| | - Nicole Eter
- Department of Ophthalmology, University of Münster, Münster, Germany
| |
Collapse
|
46
|
Döring Y, Noels H, Mandl M, Kramp B, Neideck C, Lievens D, Drechsler M, Megens RTA, Tilstam PV, Langer M, Hartwig H, Theelen W, Marth JD, Sperandio M, Soehnlein O, Weber C. Deficiency of the sialyltransferase St3Gal4 reduces Ccl5-mediated myeloid cell recruitment and arrest: short communication. Circ Res 2014; 114:976-81. [PMID: 24425712 DOI: 10.1161/circresaha.114.302426] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
RATIONALE Sialylation by α2,3-sialyltransferases has been shown to be a crucial glycosylation step in the generation of functional selectin ligands. Recent evidence suggests that sialylation also affects the binding of chemokines to their corresponding receptor. OBJECTIVE Because the chemokine receptors for Ccl5 and Ccl2 are important in atherogenic recruitment of neutrophils and monocytes, we here investigated the role of α2,3-sialyltransferase IV (ST3Gal-IV) in Ccl5- and Ccl2-mediated myeloid cell arrest and further studied its relevance in a mouse model of atherosclerosis. METHODS AND RESULTS St3Gal4-deficient myeloid cells showed a reduced binding of Ccl5 and an impaired Ccl5-triggered integrin activation. Correspondingly, Ccl5-induced arrest on tumor necrosis factor-α-stimulated endothelium was almost completely abrogated, as observed in flow chamber adhesion assays and during ex vivo perfusion or intravital microscopy of carotid arteries. Moreover, Ccl5-triggered neutrophil and monocyte extravasation into the peritoneal cavity was severely reduced in St3Gal4(-/-) mice. In contrast, St3Gal4 deficiency did not significantly affect Ccl2 binding and only marginally decreased Ccl2-induced flow arrest of myeloid cells. In agreement with the crucial role of leukocyte accumulation in atherogenesis, and the importance of Ccl5 chemokine receptors mediating myeloid cell recruitment to atherosclerotic vessels, St3Gal4 deficiency drastically reduced the size, stage, and inflammatory cell content of atherosclerotic lesions in Apoe(-/-) mice on high-fat diet. CONCLUSIONS In summary, these findings identify ST3Gal-IV as a promising target to reduce inflammatory leukocyte recruitment and arrest.
Collapse
Affiliation(s)
- Yvonne Döring
- From Institute for Cardiovascular Prevention (Y.D., M.M., B.K., C.N., D.L., M.D., R.T.A.M., M.L., H.H., O.S., C.W.), and Walter Brendel Centre of Experimental Medicine (M.S.), Ludwig-Maximilians University, Munich, Germany; Institute for Molecular Cardiovascular Research, RWTH Aachen University, Aachen, Germany (H.N., P.V.T., W.T.); Center for Nanomedicine, Sanford-Burnham Medical Research Institute, University of California, Santa Barbara, CA (J.D.M.); DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance, Munich, Germany (M.S., O.S., C.W.); Academic Medical Center, Amsterdam, the Netherlands (O.S.); and Cardiovascular Research Institute Maastricht, Maastricht, the Netherlands (R.T.A.M., C.W.)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Xia S, Han M, Li X, Cheng L, Qiang Y, Wu S, Zhang M, Xu H, Liu X, Shao Q. Dietary fish oil exacerbates concanavalin A induced hepatitis through promoting hepatocyte apoptosis and altering immune cell populations. J Toxicol Sci 2014; 39:179-90. [DOI: 10.2131/jts.39.179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Sheng Xia
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
- Institute of Clinic Laboratory Diagnosis, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Mutian Han
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Xiaoping Li
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Lu Cheng
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Yetao Qiang
- Institute of Clinic Laboratory Diagnosis, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Shuiyun Wu
- Institute of Clinic Laboratory Diagnosis, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Miaomiao Zhang
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Huaxi Xu
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
- Institute of Clinic Laboratory Diagnosis, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Xia Liu
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| | - Qixiang Shao
- Department of Immunology, School of Medical Science and Laboratory Medicine, Jiangsu University, China
- Institute of Clinic Laboratory Diagnosis, School of Medical Science and Laboratory Medicine, Jiangsu University, China
| |
Collapse
|
48
|
Silvestre JS, Smadja DM, Lévy BI. Postischemic revascularization: from cellular and molecular mechanisms to clinical applications. Physiol Rev 2013; 93:1743-802. [PMID: 24137021 DOI: 10.1152/physrev.00006.2013] [Citation(s) in RCA: 171] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
After the onset of ischemia, cardiac or skeletal muscle undergoes a continuum of molecular, cellular, and extracellular responses that determine the function and the remodeling of the ischemic tissue. Hypoxia-related pathways, immunoinflammatory balance, circulating or local vascular progenitor cells, as well as changes in hemodynamical forces within vascular wall trigger all the processes regulating vascular homeostasis, including vasculogenesis, angiogenesis, arteriogenesis, and collateral growth, which act in concert to establish a functional vascular network in ischemic zones. In patients with ischemic diseases, most of the cellular (mainly those involving bone marrow-derived cells and local stem/progenitor cells) and molecular mechanisms involved in the activation of vessel growth and vascular remodeling are markedly impaired by the deleterious microenvironment characterized by fibrosis, inflammation, hypoperfusion, and inhibition of endogenous angiogenic and regenerative programs. Furthermore, cardiovascular risk factors, including diabetes, hypercholesterolemia, hypertension, diabetes, and aging, constitute a deleterious macroenvironment that participates to the abrogation of postischemic revascularization and tissue regeneration observed in these patient populations. Thus stimulation of vessel growth and/or remodeling has emerged as a new therapeutic option in patients with ischemic diseases. Many strategies of therapeutic revascularization, based on the administration of growth factors or stem/progenitor cells from diverse sources, have been proposed and are currently tested in patients with peripheral arterial disease or cardiac diseases. This review provides an overview from our current knowledge regarding molecular and cellular mechanisms involved in postischemic revascularization, as well as advances in the clinical application of such strategies of therapeutic revascularization.
Collapse
|
49
|
Ingersoll MA, Albert ML. From infection to immunotherapy: host immune responses to bacteria at the bladder mucosa. Mucosal Immunol 2013; 6:1041-53. [PMID: 24064671 DOI: 10.1038/mi.2013.72] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 08/20/2013] [Indexed: 02/04/2023]
Abstract
The pathogenesis of urinary tract infection and mechanisms of the protective effect of Bacillus Calmette-Guerin (BCG) therapy for bladder cancer highlight the importance of studying the bladder as a unique mucosal surface. Innate responses to bacteria are reviewed, and although our collective knowledge remains incomplete, we discuss how adaptive immunity may be generated following bacterial challenge in the bladder microenvironment. Interestingly, the widely held belief that the bladder is sterile has been challenged recently, indicating the need for further study of the impact of commensal microorganisms on the immune response to uropathogen infection or intentional instillation of BCG. This review addresses the aspects of bladder biology that have been well explored and defines what still must be discovered about the immunobiology of this understudied organ.
Collapse
Affiliation(s)
- M A Ingersoll
- 1] Unité d'Immunobiologie des Cellules Dendritiques, Department of Immunology, Institut Pasteur, Paris, France [2] INSERM U818, Department of Immunology, Institut Pasteur, Paris, France [3] Université Paris Descartes, Paris, France
| | | |
Collapse
|
50
|
Phinikaridou A, Andia ME, Passacquale G, Ferro A, Botnar RM. Noninvasive MRI monitoring of the effect of interventions on endothelial permeability in murine atherosclerosis using an albumin-binding contrast agent. J Am Heart Assoc 2013; 2:e000402. [PMID: 24072533 PMCID: PMC3835253 DOI: 10.1161/jaha.113.000402] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Background Endothelial dysfunction promotes atherosclerosis. We investigated whether in vivo magnetic resonance imaging (MRI) using an albumin‐binding contrast agent, gadofosveset, could monitor the efficacy of minocycline and ebselen in reducing endothelial permeability and atherosclerotic burden in the brachiocephalic artery of high‐fat diet (HFD)–fed ApoE−/− mice. Methods and Results ApoE−/− mice were scanned 12 weeks after commencement of either a normal diet (controls) or an HFD. HFD‐fed ApoE−/− mice were either untreated or treated with minocycline or ebselen for 12 weeks. Delayed‐enhancement MRI and T1 mapping of the brachiocephalic artery, 30 minutes after injection of gadofosveset, showed increased vessel wall enhancement and relaxation rate (R1, s−1) in untreated HFD‐fed ApoE−/− mice (R1=3.8±0.52 s−1) compared with controls (R1=2.15±0.34 s−1, P<0.001). Conversely, minocycline‐treated (R1=2.7±0.17 s−1, P<0.001) and ebselen‐treated (R1=2.7±0.23 s−1, P<0.001) ApoE−/− mice showed less vessel wall enhancement compared with untreated HFD‐fed ApoE−/− mice. Mass spectroscopy showed a lower gadolinium concentration in the brachiocephalic artery of treated (minocycline=28.5±3 μmol/L, ebselen=32.4±4 μmol/L) compared with untreated HFD‐fed ApoE−/− mice (191±4.8 μmol/L) (P<0.02). Both interventions resulted in a lower plaque burden as measured by delayed‐enhancement MRI (minocycline=0.14±0.02 mm2, ebselen=0.20±0.09 mm2, untreated=0.44±0.01 mm2; P<0.001) and histology (minocycline=0.13±0.05 mm2, ebselen=0.18±0.02 mm2, untreated=0.32±0.04 mm2; P<0.002). Endothelium cells displayed fewer structural changes and smaller gap junction width in treated compared with untreated animals as seen by electron microscopy (minocycline=42.3±8.4 nm, ebselen=56.5±17 nm, untreated=2400±39 nm; P<0.001). Tissue flow cytometry of the brachiocephalic artery showed lower monocyte/macrophage content in both ebselen‐ and minocycline‐treated mice (8.06±3.2% and 7.62±1.73%, respectively) compared with untreated animals (20.1±2.2%) (P=0.03), with significant attenuation of the proinflammatory Ly6Chigh subtype (untreated mice, 42.64±6.1% of total monocytes; ebselen, 14.07±9.5% of total monocytes; minocycline, 26.42±0.6% of total monocytes). Conclusions We demonstrate that contrast‐enhanced MRI with an albumin‐binding contrast agent can be used to noninvasively monitor the effect of interventions on endothelial permeability and plaque burden. Blood albumin leakage could be a surrogate marker for the in vivo evaluation of interventions that aim at restoring endothelial integrity.
Collapse
Affiliation(s)
- Alkystis Phinikaridou
- Division of Imaging Science and Biomedical Engineering, King's College London, London, United Kingdom
| | | | | | | | | |
Collapse
|