201
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Chen JW, Hsu CC, Su CC, Hsu RB, Chiu YL, Chia JS, Jung CJ. Transient bacteremia promotes catheter-related central venous thrombosis through neutrophil extracellular traps. Thromb Haemost 2021; 122:1198-1208. [PMID: 34768303 DOI: 10.1055/a-1695-8612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Formation of intravenous catheter-related thrombosis leads to central venous stenosis in patients requiring renal replacement therapy or chemotherapy infusion, yet the triggering or mechanisms remain unclear, especially in patients without symptoms of infection. In this study, we found that neutrophil extracellular traps (NETs) could be detected in the fibrin sheaths from dialysis patients without clinical manifestations of infection. Confocal microscopy revealed bacteria imbedded in NETs in the fibrin sheaths. Thirty-nine of 50 (78%) fibrin sheath specimens contained bacteria detectable by 16S ribosomal RNA genome typing with a predominance of Staphylococcus aureus (69%). In rat models, transient bacteremia of S. aureus induced NETs in enlarged fibrin sheaths, and treatment with DNase I alone significantly reduced both NET and fibrin sheath formation surrounding the catheter. Therefore, transient bacteremia could be a silent trigger that induces NET-related immunothrombosis enhancing catheter-related central venous stenosis.
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Affiliation(s)
- Jeng-Wei Chen
- National Taiwan University Hospital, Department of Surgery, National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chih-Chieh Hsu
- School of Dentistry, Graduate Institute of Oral Biology, National Taiwan University, Taipei, Taiwan
| | - Chien-Chia Su
- National Taiwan University Hospital, Department of ophthalmology, National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Ron-Bin Hsu
- National Taiwan University Hospital, Department of Surgery, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yen-Ling Chiu
- Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan.,Department of Medicine, Division of Nephrology, Far Eastern Memorial Hospital, New Taipei City, Taiwan.,College of Informatics, Department of Computer Science and Engineering, Graduate Program in Biomedical Informatics, Yuan Ze University, Chung-Li, Taiwan
| | - Jean-San Chia
- Graduate institute of clinical medicine, National Taiwan University College of Medicine, Taipei, Taiwan.,Graduate Institute of Microbiology, National Taiwan University College of Medicine, Taipei, Taiwan.,School of Dentistry, Graduate Institute of Clinical Dentistry, National Taiwan University, Taipei, Taiwan
| | - Chiau-Jing Jung
- College of Medicine, School of Medicine, Department of Microbiology and Immunology, Taipei Medical University, Taipei, Taiwan
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202
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Oliveira-Costa KM, Menezes GB, Paula Neto HA. Neutrophil accumulation within tissues: A damage x healing dichotomy. Biomed Pharmacother 2021; 145:112422. [PMID: 34781139 DOI: 10.1016/j.biopha.2021.112422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 11/08/2021] [Accepted: 11/10/2021] [Indexed: 02/09/2023] Open
Abstract
The abundance of neutrophils in human circulation, their fast mobilization from blood to tissues, along with their alleged short life-span led to the image of neutrophils as a homogeneous cell type designed to fight infections and die in the process. Additionally, their granule content and capacity to produce molecules with considerable cytotoxic potential, lead to the general belief that neutrophil activation inexorably results in side effect of extensive tissue injury. Neutrophil activation in fact causes tissue injury as an adverse effect, but it seems that this is restricted to particular pathological situations and more of an "exception to the rule". Here we review evidences arising especially from intravital microscopy studies that demonstrate neutrophils as cells endowed with sophisticated mechanisms and able to engage in complex interactions as to minimize damage and optimize their effector functions. Moreover, neutrophil infiltration may even contribute to tissue healing and repair which may altogether demand a reexamination of current anti-inflammatory therapies that have neutrophil migration and activation as a target.
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Affiliation(s)
- Karen Marques Oliveira-Costa
- Center for Gastrointestinal Biology, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil
| | - Gustavo B Menezes
- Center for Gastrointestinal Biology, Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil.
| | - Heitor A Paula Neto
- Laboratório de Alvos Moleculares, Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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203
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Kübler M, Götz P, Braumandl A, Beck S, Ishikawa-Ankerhold H, Deindl E. Impact of C57BL/6J and SV-129 Mouse Strain Differences on Ischemia-Induced Postnatal Angiogenesis and the Associated Leukocyte Infiltration in a Murine Hindlimb Model of Ischemia. Int J Mol Sci 2021; 22:ijms222111795. [PMID: 34769229 PMCID: PMC8584150 DOI: 10.3390/ijms222111795] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 10/23/2021] [Accepted: 10/27/2021] [Indexed: 12/11/2022] Open
Abstract
Strain-related differences in arteriogenesis in inbred mouse strains have already been studied excessively. However, these analyses missed evaluating the mouse strain-related differences in ischemia-induced angiogenic capacities. With the present study, we wanted to shed light on the different angiogenic potentials and the associated leukocyte infiltration of C57BL/6J and SV-129 mice to facilitate the comparison of angiogenesis-related analyses between these strains. For the induction of angiogenesis, we ligated the femoral artery in 8-12-week-old male C57BL/6J and SV-129 mice and performed (immuno-) histological analyses on the ischemic gastrocnemius muscles collected 24 h or 7 days after ligation. As evidenced by hematoxylin and eosin staining, C57BL/6J mice showed reduced tissue damage but displayed an increased capillary-to-muscle fiber ratio and an elevated number of proliferating capillaries (CD31+/BrdU+ cells) compared to SV-129 mice, thus showing improved angiogenesis. Regarding the associated leukocyte infiltration, we found increased numbers of neutrophils (MPO+ cells), NETs (MPO+/CitH3+/DAPI+), and macrophages (CD68+ cells) in SV-129 mice, whereas macrophage polarization (MRC1- vs. MRC1+) and total leukocyte infiltration (CD45+ cells) did not differ between the mouse strains. In summary, we show increased ischemia-induced angiogenic capacities in C57BL/6J mice compared to SV-129 mice, with the latter showing aggravated tissue damage, inflammation, and impaired angiogenesis.
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Affiliation(s)
- Matthias Kübler
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Philipp Götz
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Anna Braumandl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Sebastian Beck
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Hellen Ishikawa-Ankerhold
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Department of Internal Medicine I, Faculty of Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Elisabeth Deindl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (P.G.); (A.B.); (S.B.); (H.I.-A.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
- Correspondence: ; Tel.: +49-(0)-89-2180-76504
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204
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Zhu S, Yu Y, Ren Y, Xu L, Wang H, Ling X, Jin L, Hu Y, Zhang H, Miao C, Guo K. The emerging roles of neutrophil extracellular traps in wound healing. Cell Death Dis 2021; 12:984. [PMID: 34686654 PMCID: PMC8536667 DOI: 10.1038/s41419-021-04294-3] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/27/2021] [Accepted: 10/06/2021] [Indexed: 12/20/2022]
Abstract
Delayed wound healing causes problems for many patients both physically and psychologically, contributing to pain, economic burden, loss of function, and even amputation. Although many factors affect the wound healing process, abnormally prolonged or augmented inflammation in the wound site is a common cause of poor wound healing. Excessive neutrophil extracellular trap (NET) formation during this phase may amplify inflammation and hinder wound healing. However, the roles of NETs in wound healing are still unclear. Herein, we briefly introduce NET formation and discuss the possible NET-related mechanisms in wound healing. We conclude with a discussion of current studies, focusing on the roles of NETs in diabetic and normoglycemic wounds and the effectiveness of NET-targeting treatments in wound healing.
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Affiliation(s)
- Shuainan Zhu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Yu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yun Ren
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Liying Xu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Huilin Wang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xiaomin Ling
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Lin Jin
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yan Hu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hao Zhang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
| | - Kefang Guo
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.
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205
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D'Souza S, Nair AP, Sahu GR, Vaidya T, Shetty R, Khamar P, Mullick R, Gupta S, Dickman MM, Nuijts RMMA, Mohan RR, Ghosh A, Sethu S. Keratoconus patients exhibit a distinct ocular surface immune cell and inflammatory profile. Sci Rep 2021; 11:20891. [PMID: 34686755 PMCID: PMC8536707 DOI: 10.1038/s41598-021-99805-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/23/2021] [Indexed: 02/06/2023] Open
Abstract
Inflammatory factors have been considered to contribute to keratoconus (KC) pathogenesis. This study aims to determine the immune cells subsets and soluble inflammatory factor profile on the ocular surface of KC patients. 32 KC subjects (51 eyes) across different grades of severity and 15 healthy controls (23 eyes) were included in the study. Keratometry and pachymetry measurements were recorded. Ocular surface immune cells (collected by ocular surface wash) immunophenotyped using flow cytometry include leukocytes, neutrophils, macrophages, natural killer (NK) cells, pan-T cells, gamma delta T (γδT) cells and NKT cells. Tear fluid collected using Schirmer's strip was used to measure 50 soluble factors by multiplex ELISA. Proportions of activated neutrophils, NK cells and γδT cells were significantly increased in KC patients. Significantly higher levels of tear fluid IL-1β, IL-6, LIF, IL-17A, TNFα, IFNα/β/γ, EPO, TGFβ1, PDGF-BB, sVCAM, sL-selectin, granzyme-B, perforin, MMP2, sFasL and IgE, along with significantly lower levels of IL-1α and IL-9 were observed in KC patients. Alterations observed in few of the immuno-inflammatory parameters correlated with grades of disease, allergy, eye rubbing and keratometry or pachymetry measurements. The observation implies a distinct immuno-inflammatory component in KC pathogenesis and its potential as an additional therapeutic target in KC management.
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Affiliation(s)
- Sharon D'Souza
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Archana Padmanabhan Nair
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India.,Manipal Academy of Higher Education, Manipal, India
| | - Ganesh Ram Sahu
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India
| | - Tanuja Vaidya
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India.,Manipal Academy of Higher Education, Manipal, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Pooja Khamar
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Ritika Mullick
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Sneha Gupta
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Mor M Dickman
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands.,MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands
| | - Rudy M M A Nuijts
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Rajiv R Mohan
- Department of Veterinary Medicine and Surgery, University of Missouri, 1600 E. Rollins Rd, Columbia, MO, 65211, USA. .,Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, USA. .,Harry S Truman Veterans' Memorial Hospital, Columbia, MO, USA.
| | - Arkasubhra Ghosh
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India. .,Singapore Eye Research Institute, Singapore, Singapore.
| | - Swaminathan Sethu
- GROW Research Laboratory, Narayana Nethralaya Foundation, 3rd Floor, Narayana Nethralaya, #258/A Hosur Road, Bommasandra, Bangalore, 560099, India.
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206
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Effah CY, Drokow EK, Agboyibor C, Ding L, He S, Liu S, Akorli SY, Nuamah E, Sun T, Zhou X, Liu H, Xu Z, Feng F, Wu Y, Zhang X. Neutrophil-Dependent Immunity During Pulmonary Infections and Inflammations. Front Immunol 2021; 12:689866. [PMID: 34737734 PMCID: PMC8560714 DOI: 10.3389/fimmu.2021.689866] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 09/23/2021] [Indexed: 01/08/2023] Open
Abstract
Rapid recruitment of neutrophils to an inflamed site is one of the hallmarks of an effective host defense mechanism. The main pathway through which this happens is by the innate immune response. Neutrophils, which play an important part in innate immune defense, migrate into lungs through the modulation actions of chemokines to execute a variety of pro-inflammatory functions. Despite the importance of chemokines in host immunity, little has been discussed on their roles in host immunity. A holistic understanding of neutrophil recruitment, pattern recognition pathways, the roles of chemokines and the pathophysiological roles of neutrophils in host immunity may allow for new approaches in the treatment of infectious and inflammatory disease of the lung. Herein, this review aims at highlighting some of the developments in lung neutrophil-immunity by focusing on the functions and roles of CXC/CC chemokines and pattern recognition receptors in neutrophil immunity during pulmonary inflammations. The pathophysiological roles of neutrophils in COVID-19 and thromboembolism have also been summarized. We finally summarized various neutrophil biomarkers that can be utilized as prognostic molecules in pulmonary inflammations and discussed various neutrophil-targeted therapies for neutrophil-driven pulmonary inflammatory diseases.
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Affiliation(s)
| | - Emmanuel Kwateng Drokow
- Department of Radiation Oncology, Zhengzhou University People’s Hospital & Henan Provincial People’s Hospital, Zhengzhou, China
| | - Clement Agboyibor
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Lihua Ding
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Sitian He
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Shaohua Liu
- General ICU, Henan Key Laboratory of Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Senyo Yao Akorli
- College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Emmanuel Nuamah
- College of Agriculture and Natural Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Tongwen Sun
- General ICU, Henan Key Laboratory of Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaolei Zhou
- Department of Respiratory, Henan Provincial Chest Hospital, Zhengzhou, China
| | - Hong Liu
- Department of Respiratory, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhiwei Xu
- Department of Respiratory and Critical Care Medicine, People’s Hospital of Zhengzhou University & Henan Provincial People’s Hospital, Zhengzhou, China
| | - Feifei Feng
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Yongjun Wu
- College of Public Health, Zhengzhou University, Zhengzhou, China
| | - Xiaoju Zhang
- Department of Respiratory and Critical Care Medicine, People’s Hospital of Zhengzhou University & Henan Provincial People’s Hospital, Zhengzhou, China
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207
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Nolan E, Malanchi I. Connecting the dots: Neutrophils at the interface of tissue regeneration and cancer. Semin Immunol 2021; 57:101598. [PMID: 35221216 PMCID: PMC9232712 DOI: 10.1016/j.smim.2022.101598] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/19/2022] [Accepted: 02/08/2022] [Indexed: 11/28/2022]
Abstract
Knowledge about neutrophil biology has exponentially grown over the past decades. A high volume of investigations focusing on the characterization of their initially unappreciated multifaceted functions have grown in parallel with the immunity and the cancer fields. This has led to a significant gain in knowledge about their functions not only in tissue defence against pathogens and the collateral damage their overactivation can cause, but also their role in tissue repair and regeneration especially in the context of sterile injuries. On the other hand, the cancer field has also intensively focused its attention on neutrophil engagement in the many steps of the tumorigenic process. This review aims to draw the readers' attention to the similar functions described for neutrophils in tissue repair and in cancer. By bridging the two fields, we provide support for the hypothesis that the underlying program driving cancer-dependent exploitation of neutrophils is rooted in their physiologic tissue protection functions. In this view, cross-fertilization between the two fields will expedite the discovery of therapeutic interventions based on neutrophil targeting or their manipulation.
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Affiliation(s)
- Emma Nolan
- Tumour Host Interaction Laboratory, The Francis Crick Institute, 1 Midland Road, NW1 1AT London, United Kingdom
| | - Ilaria Malanchi
- Tumour Host Interaction Laboratory, The Francis Crick Institute, 1 Midland Road, NW1 1AT London, United Kingdom.
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208
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Zheng K, Niu W, Lei B, Boccaccini AR. Immunomodulatory bioactive glasses for tissue regeneration. Acta Biomater 2021; 133:168-186. [PMID: 34418539 DOI: 10.1016/j.actbio.2021.08.023] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 08/06/2021] [Accepted: 08/16/2021] [Indexed: 02/07/2023]
Abstract
The regulatory functions of the immune response in tissue healing, repair, and regeneration have been evidenced in the last decade. Immune cells play central roles in immune responses toward inducing favorable tissue regenerative processes. Modulating and controlling the immune cell responses (particularly macrophages) is an emerging approach to enhance tissue regeneration. Bioactive glasses (BGs) are multifunctional materials exhibiting osteogenic, angiogenic, and antibacterial properties, being increasingly investigated for various tissue regeneration scenarios, including bone regeneration and wound healing. On the other hand, the immunomodulatory effects of BGs in relation to regenerating tissues have started to be understood, and key knowledge is emerging. This is the first review article summarizing the immunomodulatory effects of BGs for tissue repair and regeneration. The immune response to BGs is firstly introduced, discussing potential mechanisms regarding the immunomodulation effects induced by BGs. Moreover, the interactions between the immune cells involved in the immunomodulation process and BGs (dissolution products) are summarized in detail. Particularly, a well-regulated and timely switch of macrophage phenotype from pro-inflammatory to anti-inflammatory is crucial to constructive tissue regeneration through modulating osteogenesis, osteoclastogenesis, and angiogenesis. The influence of BG characteristics on macrophage responses is discussed. We highlight the strategies employed to harness macrophage responses for enhanced tissue regeneration, including the incorporation of active ions, surface functionalization, and controlled release of immunomodulatory molecules. Finally, we conclude with our perspectives on future research challenges and directions in the emerging field of immunomodulatory BGs for tissue regeneration. STATEMENT OF SIGNIFICANCE: Immunomodulatory effects of bioactive glasses (BGs) in relation to bone regeneration and wound healing have started to be understood. We summarize those studies which have focused on immunomodulatory BGs for tissue regeneration. We first introduce the potential mechanisms of the immunomodulation effects induced by BGs. Interactions between the cells involved in immunomodulation processes and BGs (and their dissolution products, biologically active ions) are elaborated. We highlight the strategies employed to modulate macrophage responses for enhancing tissue regeneration, including incorporation of active ions, surface functionalization, and controlled release of immunomodulatory agents. This is the first review article summarizing and outlining the immunomodulatory effects of BGs for tissue regeneration. We anticipate that increasing research efforts will start to emerge in the area of immunomodulatory BGs.
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209
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Tulangekar A, Sztal TE. Inflammation in Duchenne Muscular Dystrophy-Exploring the Role of Neutrophils in Muscle Damage and Regeneration. Biomedicines 2021; 9:biomedicines9101366. [PMID: 34680483 PMCID: PMC8533596 DOI: 10.3390/biomedicines9101366] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/22/2021] [Accepted: 09/26/2021] [Indexed: 12/13/2022] Open
Abstract
Duchenne muscular dystrophy (DMD) is a severe and progressive, X-linked, neuromuscular disorder caused by mutations in the dystrophin gene. In DMD, the lack of functional dystrophin protein makes the muscle membrane fragile, leaving the muscle fibers prone to damage during contraction. Muscle degeneration in DMD patients is closely associated with a prolonged inflammatory response, and while this is important to stimulate regeneration, inflammation is also thought to exacerbate muscle damage. Neutrophils are one of the first immune cells to be recruited to the damaged muscle and are the first line of defense during tissue injury or infection. Neutrophils can promote inflammation by releasing pro-inflammatory cytokines and compounds, including myeloperoxidase (MPO) and neutrophil elastase (NE), that lead to oxidative stress and are thought to have a role in prolonging inflammation in DMD. In this review, we provide an overview of the roles of the innate immune response, with particular focus on mechanisms used by neutrophils to exacerbate muscle damage and impair regeneration in DMD.
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210
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Abaricia JO, Farzad N, Heath TJ, Simmons J, Morandini L, Olivares-Navarrete R. Control of innate immune response by biomaterial surface topography, energy, and stiffness. Acta Biomater 2021; 133:58-73. [PMID: 33882355 DOI: 10.1016/j.actbio.2021.04.021] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 03/27/2021] [Accepted: 04/12/2021] [Indexed: 12/23/2022]
Abstract
As the focus of implantable biomaterials has shifted from bioinert implants to bioactive designs, recent research has highlighted the complex interactions between cell physiologic systems and material properties, particularly physical cues. From the cells known to interact with implanted biomaterials, the response of the immune system has been a critical target of study recently. Here, we review studies characterizing the response of innate immune cells to various material cues, particularly of those at the surface of implanted materials.The innate immune system consists of cell types with various roles in inflammation. Neutrophils and macrophages serve both phagocytic and signaling roles, especially early in the inflammatory phase of biomaterial implantation. These cell types ultimately dictate the outcome of implants as chronic inflammation, fibrosis, or integration. Other cell types like dendritic cells, mast cells, natural killer cells, and innate lymphoid cells may also serve an immunomodulatory role in the biomaterial context. This review highlights recent advances in our understanding of the role of innate immunity in the response to implantable biomaterials as well as key mechanobiological findings in innate immune cells underpinning these advances. STATEMENT OF SIGNIFICANCE: This review highlights recent advances in the understanding of the role of innate immunity in the response to implantable biomaterials, especially in neutrophils and macrophages, as well as key mechanobiological findings in innate immune cells underpinning these advances. Here we discuss how physicochemical properties of biomaterials control innate immune cell behavior.
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211
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Abstract
Even with strict implementation of preventive measures, surgical site infections (SSIs) remain among the most prevalent health care-associated infections. New strategies to prevent SSIs would thus have a huge impact, also in light of increasing global rates of antimicrobial drug resistance. Considering the indispensable role of innate immune cells in host defense in surgical wounds, enhancing their function may represent a potential strategy for prevention of SSIs. Trained immunity is characterized by metabolic, epigenetic, and functional reprogramming of innate immune cells. These functional changes take place at multiple levels, namely, at the level of bone marrow precursors, circulating innate immune cells, and resident tissue macrophages. Experimental studies have shown that induction of trained immunity can protect against various infections. Increasing evidence suggests that it may also lower the risk and severity of SSIs. This may occur through several different mechanisms. First, trained immunity enhances local host defense against soft tissue infections, including those caused by Staphylococcus aureus, the most common cause of SSIs. Second, training effects on nonimmune cells such as fibroblasts have been shown to improve wound repair. Third, trained immunity may prevent or reverse the postoperative immunoparalysis that contributes to risk of infections following surgery. There are multiple approaches to inducing trained immunity, such as vaccination with the bacillus Calmette-Guérin (BCG) tuberculosis vaccine, topical administration of β-glucan, or treatment with the Toll-like receptor 7 agonist imiquimod. Clinical-experimental studies should establish if and how induction of trained immunity can best help prevent SSIs and what patient groups would most benefit.
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212
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Kong N, Chen G, Wang H, Li J, Yin S, Cao X, Wang T, Li X, Li Y, Zhang H, Yu S, Tang J, Sood A, Zheng Y, Leng S. Blood leukocyte count as a systemic inflammatory biomarker associated with a more rapid spirometric decline in a large cohort of iron and steel industry workers. Respir Res 2021; 22:254. [PMID: 34565362 PMCID: PMC8467242 DOI: 10.1186/s12931-021-01849-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 09/17/2021] [Indexed: 12/29/2022] Open
Abstract
Objective Iron and steel industry workers are exposed to high levels of inhalable dust particles that contain various elements, including metals, and cause occupational lung diseases. We aim to assess the relationship between occupational dust exposure, systemic inflammation, and spirometric decline in a cohort of Chinese iron and steel workers. Methods We studied 7513 workers who participated in a Health Surveillance program at Wugang Institute for Occupational Health between 2008 and 2017. Time-weighted exposure intensity (TWEI) of dust was quantified based on self-reported dust exposure history, the experience of occupational hygienists, and historical data of dust exposure for workers with certain job titles. A linear mixed-effects model was used for association analyses. Results The average annual change of lung function was − 50.78 ml/year in forced expiratory volume in 1 s (FEV1) and − 34.36 ml/year in forced vital capacity (FVC) in males, and − 39.06 ml/year in FEV1 and − 26.66 ml/year in FVC in females. Higher TWEI prior to baseline was associated with lower longitudinal measurements of FEV1 and FVC but not with their decline rates. Higher WBC and its differential at baseline were associated with lower longitudinal measurements and a more rapid decline of FEV1 and FVC in a dose-dependent monotonically increasing manner. Moreover, the increase of WBC and its differential post-baseline was also associated with a more rapid decline of FEV1 and FVC. Conclusions Our findings support the important role of systemic inflammation in affecting the temporal change of lung function in iron and steel industry workers. Supplementary Information The online version contains supplementary material available at 10.1186/s12931-021-01849-y.
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Affiliation(s)
- Nan Kong
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Guoshun Chen
- Wugang Institute for Occupational Health, Wuyang Iron and Steel Company Limited of Hangang Group in Henan, Wuyang, Henan, China
| | - Haitao Wang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Jianyu Li
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Shuzhen Yin
- Wugang Institute for Occupational Health, Wuyang Iron and Steel Company Limited of Hangang Group in Henan, Wuyang, Henan, China
| | - Xue Cao
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Tao Wang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Xin Li
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Yanan Li
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Huanling Zhang
- Wugang Institute for Occupational Health, Wuyang Iron and Steel Company Limited of Hangang Group in Henan, Wuyang, Henan, China
| | - Shanfa Yu
- Henan Medical College, Zhengzhou, Henan, China
| | - Jinglong Tang
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China
| | - Akshay Sood
- Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA
| | - Yuxin Zheng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China.
| | - Shuguang Leng
- Department of Occupational and Environmental Health, School of Public Health, Qingdao University, Qingdao, 266021, Shandong, China. .,Department of Internal Medicine, School of Medicine, University of New Mexico, Albuquerque, NM, 87131, USA. .,Cancer Control and Population Sciences, University of New Mexico Comprehensive Cancer Center, Albuquerque, NM, USA.
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213
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Warner J, Hardesty J, Song Y, Sun R, Deng Z, Xu R, Yin X, Zhang X, McClain C, Warner D, Kirpich I. Fat-1 Transgenic Mice With Augmented n3-Polyunsaturated Fatty Acids Are Protected From Liver Injury Caused by Acute-On-Chronic Ethanol Administration. Front Pharmacol 2021; 12:711590. [PMID: 34531743 PMCID: PMC8438569 DOI: 10.3389/fphar.2021.711590] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/16/2021] [Indexed: 12/12/2022] Open
Abstract
Alcohol-associated liver disease (ALD) is the leading cause of liver disease worldwide, and alcohol-associated hepatitis (AH), a severe form of ALD, is a major contributor to the mortality and morbidity due to ALD. Many factors modulate susceptibility to ALD development and progression, including nutritional factors such as dietary fatty acids. Recent work from our group and others showed that modulation of dietary or endogenous levels of n6-and n3-polyunsaturated fatty acids (PUFAs) can exacerbate or attenuate experimental ALD, respectively. In the current study, we interrogated the effects of endogenous n3-PUFA enrichment in a mouse model which recapitulates features of early human AH using transgenic fat-1 mice which endogenously convert n6-PUFAs to n3-PUFAs. Male wild type (WT) and fat-1 littermates were provided an ethanol (EtOH, 5% v/v)-containing liquid diet for 10 days, then administered a binge of EtOH (5 g/kg) by oral gavage on the 11th day, 9 h prior to sacrifice. In WT mice, EtOH treatment resulted in liver injury as determined by significantly elevated plasma ALT levels, whereas in fat-1 mice, EtOH caused no increase in this biomarker. Compared to their pair-fed controls, a significant EtOH-mediated increase in liver neutrophil infiltration was observed also in WT, but not fat-1 mice. The hepatic expression of several cytokines and chemokines, including Pai-1, was significantly lower in fat-1 vs WT EtOH-challenged mice. Cultured bone marrow-derived macrophages isolated from fat-1 mice expressed less Pai-1 and Cxcl2 (a canonical neutrophil chemoattractant) mRNA compared to WT when stimulated with lipopolysaccharide. Further, we observed decreased pro-inflammatory M1 liver tissue-resident macrophages (Kupffer cells, KCs), as well as increased liver T regulatory cells in fat-1 vs WT EtOH-fed mice. Taken together, our data demonstrated protective effects of endogenous n3-PUFA enrichment on liver injury caused by an acute-on-chronic EtOH exposure, a paradigm which recapitulates human AH, suggesting that n3-PUFAs may be a viable nutritional adjuvant therapy for this disease.
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Affiliation(s)
- Jeffrey Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Josiah Hardesty
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Ying Song
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Rui Sun
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, United States
| | - Zhongbin Deng
- James Graham Brown Cancer Center, University of Louisville, Louisville, KY, United States.,Department of Surgery, University of Louisville, Louisville, KY, United States.,University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY, United States
| | - Raobo Xu
- University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Hepatobiology & Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States.,Department of Chemistry, University of Louisville, Louisville, KY, United States.,Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, KY, United States
| | - Xinmin Yin
- University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Hepatobiology & Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States.,Department of Chemistry, University of Louisville, Louisville, KY, United States.,Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, KY, United States
| | - Xiang Zhang
- University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Hepatobiology & Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States.,Department of Chemistry, University of Louisville, Louisville, KY, United States.,Center for Regulatory and Environmental Analytical Metabolomics, University of Louisville, Louisville, KY, United States
| | - Craig McClain
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Hepatobiology & Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States.,Robley Rex Veterans Affairs Medical Center, Louisville, KY, United States
| | - Dennis Warner
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States
| | - Irina Kirpich
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Medicine, University of Louisville, Louisville, KY, United States.,Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Alcohol Research Center, University of Louisville School of Medicine, Louisville, KY, United States.,University of Louisville Hepatobiology & Toxicology Center, University of Louisville School of Medicine, Louisville, KY, United States
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Zhang C, Frye MD, Riordan J, Sharma A, Manohar S, Salvi R, Sun W, Hu BH. Loss of CX3CR1 augments neutrophil infiltration into cochlear tissues after acoustic overstimulation. J Neurosci Res 2021; 99:2999-3020. [PMID: 34520571 DOI: 10.1002/jnr.24925] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 06/16/2021] [Accepted: 07/02/2021] [Indexed: 12/20/2022]
Abstract
The cochlea, the sensory organ for hearing, has a protected immune environment, segregated from the systemic immune system by the blood-labyrinth barrier. Previous studies have revealed that acute acoustic injury causes the infiltration of circulating leukocytes into the cochlea. However, the molecular mechanisms controlling immune cell trafficking are poorly understood. Here, we report the role of CX3CR1 in regulating the entry of neutrophils into the cochlea after acoustic trauma. We employed B6.129P-Cx3cr1tm1Litt /J mice, a transgenic strain that lacks the gene, Cx3cr1, for coding the fractalkine receptor. Our results demonstrate that lack of Cx3cr1 results in the augmentation of neutrophil infiltration into cochlear tissues after exposure to an intense noise of 120 dB SPL for 1 hr. Neutrophil distribution in the cochlea is site specific, and the infiltration level is positively associated with noise intensity. Moreover, neutrophils are short lived and macrophage phagocytosis plays a role in neutrophil clearance, consistent with typical neutrophil dynamics in inflamed non-cochlear tissues. Importantly, our study reveals the potentiation of noise-induced hearing loss and sensory cell loss in Cx3cr1-/- mice. In wild-type control mice (Cx3cr1+/+ ) exposed to the same noise, we also found neutrophils. However, neutrophils were present primarily inside the microvessels of the cochlea, with only a few in the cochlear tissues. Collectively, our data implicate CX3CR1-mediated signaling in controlling neutrophil migration from the circulation into cochlear tissues and provide a better understanding of the impacts of neutrophils on cochlear responses to acoustic injury.
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Affiliation(s)
- Celia Zhang
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA.,Department of Audiology, School of Health Sciences, University of the Pacific, San Francisco, CA, USA
| | - Mitchell D Frye
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Juliana Riordan
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Ashu Sharma
- Department of Oral Biology, School of Dental Medicine, University of Buffalo, The State University of New York, Buffalo, NY, USA
| | | | - Richard Salvi
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Wei Sun
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
| | - Bo Hua Hu
- Center for Hearing and Deafness, University at Buffalo, Buffalo, NY, USA
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215
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Necrotizing funisitis is an indicator that intra-amniotic inflammatory response is more severe and amnionitis is more frequent in the context of the extension of inflammation into Wharton's jelly. Taiwan J Obstet Gynecol 2021; 60:840-850. [PMID: 34507659 DOI: 10.1016/j.tjog.2021.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2021] [Indexed: 11/20/2022] Open
Abstract
OBJECTIVE Necrotizing funisitis (NF) is defined as the presence of an arc (i.e., crescent/band/ring/halos) of infiltrated neutrophils and/or associated debris in Wharton's jelly (WJ) of umbilical-cord (UC). However, no information exists about the comparison in intra-amniotic inflammatory-response (IAIR) and inflammation in extra-placental membranes between the presence and absence of NF in the context of inflammation in WJ among spontaneous preterm births (PTBs). The objective of current study is to examine this issue. MATERIALS AND METHODS We examined IAIR and the frequency of amnionitis according to the progression of inflammation in UC (i.e. stage-1, umbilical phlebitis [inflammation in umbilical-vein(UV)] only; stage-2, involvement of at least one umbilical-artery[UA] and either the other UA or UV without extension into WJ; stage-3, the extension of inflammation into WJ without NF; stage-4, the extension of inflammation into WJ with NF) in 120singleton spontaneous PTBs (<37weeks). IAIR was gauged by AF MMP-8 (ng/ml) within 3days before birth. RESULTS 1) Stage-1, stage-2, stage-3, and stage-4 were present in 20%(24/120), 6%(7/120), 61%(73/120), and 13%(16/120) of cases respectively; 2) AF MMP-8 continuously increased (stage-1 vs. stage-2 vs. stage-3 vs. stage-4; median[ng/ml], range[ng/ml]; 207.2[16.8-1196.5] vs. 444.1[8.5-2608.0] vs. 458.8[0.4-3116.7] vs. 1859.7[912.3-5304.8]; Spearman's rank correlation-test, α = 0.454, P = 0.006), and the frequency of increased AF MMP-8 (≥854.1 ng/ml) elevated (stage-1 vs. stage-2 vs. stage-3 vs. stage-4; 13%[1/8] vs. 33%[1/3] vs. 32%[6/19] vs. 100%[5/5]; Linear-by-linear-association, P = 0.012) with the progression of inflammation in UC; 3) Moreover, there was a stepwise increase in the frequency of amnionitis according to the progression of inflammation in UC (stage-1, 33%[8/24]; stage-2, 43%[3/7]; stage-3, 62%[45/73]; stage-4, 81%[13/16]; Linear-by-linear-association, P = 0.001). CONCLUSION NF is an indicator that IAIR is more severe and amnionitis is more frequent in the context of the extension of inflammation into WJ. Therefore, current study confirms that NF is the most advanced stage in the progression of inflammation within UC.
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216
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In vitro methods used for discovering plant derived products as wound healing agents - An update on the cell types and rationale. Fitoterapia 2021; 154:105026. [PMID: 34480992 DOI: 10.1016/j.fitote.2021.105026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/27/2021] [Accepted: 08/29/2021] [Indexed: 01/13/2023]
Abstract
Wounds still pose a huge burden on human health and healthcare systems in many parts of the world. Phytomedicines are being used to heal the wounds since ancient times. Now-a-days also many researchers are exploring the wound healing activity of phytomedicines. Wound healing is a complex process thus, it is always a question mark regarding the best test model (in vivo, ex vivo and in vitro) model to assess the wound healing activity of phytomedicines. In general, the researchers would opt for in vivo model - probably because of closer physiological relevance to human wounds. However, in vivo experimental models are not suitable for high throughput screening and not ethical in terms of initial screening of the phytomedicines. The in vivo models are associated with difficulties in obtaining the ethical approvals, requires huge budget, and resources. We argue that judicious selection of cell types would serve the purpose of developing a physiologically relevant in vitro experimental model. A lot of progress has been made in molecular biology techniques to bridge the gap between in vitro models and their physiological relevance. The in vitro models are the best suited for high throughput screening and to elucidate the molecular mechanisms. The main aim of this review is to provide insights on selection of the cell types for developing physiologically relevant in vitro wound healing assays, which can be used to improve the value of phytomedicines further.
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217
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The impact of physical training on neutrophil extracellular traps in young male athletes - a pilot study. Biol Sport 2021; 38:459-464. [PMID: 34475627 PMCID: PMC8329969 DOI: 10.5114/biolsport.2021.101117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Revised: 02/24/2020] [Accepted: 08/31/2020] [Indexed: 11/17/2022] Open
Abstract
Neutrophils are an important component of the innate immune response against various pathogens. However, there is a lack of research concerning the effects of short intensive training on neutrophil functions, especially neutrophil extracellular traps (NET) formation. The study aim was to determine the effects of a 19-day training cycle on innate immunity among young male athletes. Six male ice hockey players (< 20 years old) from the Polish national team were monitored across a five-day training camp and after a return to normal club training. The first blood collection took place before training (T1), the second after the training camp (T2) and the third 14 days later (T3). The counts/concentrations of blood biochemical, immune and endocrine markers were compared across each training period. Creatine kinase activity tended to increase at T2 (546 ± 216 U·L-1) when compared to T1 (191 ± 111 U·L-1; p=0.063). Neutrophil extracellular traps formation and neutrophil counts also differed between training periods (p=0.042 and p=0.042, respectively). Neutrophil counts tended to decrease, in contrast to NET formation which tended to rise, at T2 in comparison to T1 (2.51 ± 0.45 vs 3.04 ± 0.47 109·L-1; 24 ± 13 vs 8 ± 15%, respectively). No significant differences in other leucocyte counts were observed. A short period of intensive training was accompanied by some muscle damage and inflammation, as evidenced by CK and NET up-regulation, whilst neutrophil counts were diminished in the blood. Thus, neutrophils and NET could be involved in muscle damage and local inflammatory processes following intensive physical training in young male athletes.
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218
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Adu TS, Mabandla MV. Effects of bromelain on striatal neuroinflammation in rat model of Parkinsonism. BRAIN DISORDERS 2021. [DOI: 10.1016/j.dscb.2021.100018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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219
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Kübler M, Beck S, Peffenköver LL, Götz P, Ishikawa-Ankerhold H, Preissner KT, Fischer S, Lasch M, Deindl E. The Absence of Extracellular Cold-Inducible RNA-Binding Protein (eCIRP) Promotes Pro-Angiogenic Microenvironmental Conditions and Angiogenesis in Muscle Tissue Ischemia. Int J Mol Sci 2021; 22:ijms22179484. [PMID: 34502391 PMCID: PMC8431021 DOI: 10.3390/ijms22179484] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/27/2021] [Accepted: 08/30/2021] [Indexed: 12/11/2022] Open
Abstract
Extracellular Cold-inducible RNA-binding protein (eCIRP), a damage-associated molecular pattern, is released from cells upon hypoxia and cold-stress. The overall absence of extra- and intracellular CIRP is associated with increased angiogenesis, most likely induced through influencing leukocyte accumulation. The aim of the present study was to specifically characterize the role of eCIRP in ischemia-induced angiogenesis together with the associated leukocyte recruitment. For analyzing eCIRPs impact, we induced muscle ischemia via femoral artery ligation (FAL) in mice in the presence or absence of an anti-CIRP antibody and isolated the gastrocnemius muscle for immunohistological analyses. Upon eCIRP-depletion, mice showed increased capillary/muscle fiber ratio and numbers of proliferating endothelial cells (CD31+/CD45−/BrdU+). This was accompanied by a reduction of total leukocyte count (CD45+), neutrophils (MPO+), neutrophil extracellular traps (NETs) (MPO+CitH3+), apoptotic area (ascertained via TUNEL assay), and pro-inflammatory M1-like polarized macrophages (CD68+/MRC1−) in ischemic muscle tissue. Conversely, the number of regenerative M2-like polarized macrophages (CD68+/MRC1+) was elevated. Altogether, we observed that eCIRP depletion similarly affected angiogenesis and leukocyte recruitment as described for the overall absence of CIRP. Thus, we propose that eCIRP is mainly responsible for modulating angiogenesis via promoting pro-angiogenic microenvironmental conditions in muscle ischemia.
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Affiliation(s)
- Matthias Kübler
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (S.B.); (P.G.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig- Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Sebastian Beck
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (S.B.); (P.G.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig- Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Lisa Lilian Peffenköver
- Department of Biochemistry, Faculty of Medicine, Justus Liebig University, 35392 Giessen, Germany; (L.L.P.); (K.T.P.); (S.F.)
| | - Philipp Götz
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (S.B.); (P.G.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig- Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Hellen Ishikawa-Ankerhold
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (S.B.); (P.G.); (H.I.-A.); (M.L.)
- Department of Internal Medicine I, Faculty of Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Klaus T. Preissner
- Department of Biochemistry, Faculty of Medicine, Justus Liebig University, 35392 Giessen, Germany; (L.L.P.); (K.T.P.); (S.F.)
| | - Silvia Fischer
- Department of Biochemistry, Faculty of Medicine, Justus Liebig University, 35392 Giessen, Germany; (L.L.P.); (K.T.P.); (S.F.)
| | - Manuel Lasch
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (S.B.); (P.G.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig- Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Elisabeth Deindl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (M.K.); (S.B.); (P.G.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Ludwig- Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
- Correspondence: ; Tel.: +49-(0)-89-2180-76504
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Wickramasinghe LC, van Wijngaarden P, Tsantikos E, Hibbs ML. The immunological link between neonatal lung and eye disease. Clin Transl Immunology 2021; 10:e1322. [PMID: 34466225 PMCID: PMC8387470 DOI: 10.1002/cti2.1322] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 06/02/2021] [Accepted: 07/13/2021] [Indexed: 01/02/2023] Open
Abstract
Bronchopulmonary dysplasia (BPD) and retinopathy of prematurity (ROP) are two neonatal diseases of major clinical importance, arising in large part as a consequence of supplemental oxygen therapy used to promote the survival of preterm infants. The presence of coincident inflammation in the lungs and eyes of neonates receiving oxygen therapy indicates that a dysregulated immune response serves as a potential common pathogenic factor for both diseases. This review examines the current state of knowledge of immunological dysregulation in BPD and ROP, identifying similarities in the cellular subsets and inflammatory cytokines that are found in the alveoli and retina during the active phase of these diseases, indicating possible mechanistic overlap. In addition, we highlight gaps in the understanding of whether these responses emerge independently in the lung and retina as a consequence of oxygen exposure or arise because of inflammatory spill-over from the lung. As BPD and ROP are anatomically distinct, they are often considered discreet disease entities and are therefore treated separately. We propose that an improved understanding of the relationship between BPD and ROP is key to the identification of novel therapeutic targets to treat or prevent both conditions simultaneously.
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Affiliation(s)
- Lakshanie C Wickramasinghe
- Leukocyte Signalling LaboratoryDepartment of Immunology and PathologyCentral Clinical SchoolMonash UniversityMelbourneVICAustralia
| | - Peter van Wijngaarden
- OphthalmologyDepartment of SurgeryUniversity of MelbourneMelbourneVICAustralia
- Centre for Eye Research AustraliaRoyal Victorian Eye and Ear HospitalEast MelbourneVICAustralia
| | - Evelyn Tsantikos
- Leukocyte Signalling LaboratoryDepartment of Immunology and PathologyCentral Clinical SchoolMonash UniversityMelbourneVICAustralia
| | - Margaret L Hibbs
- Leukocyte Signalling LaboratoryDepartment of Immunology and PathologyCentral Clinical SchoolMonash UniversityMelbourneVICAustralia
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221
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Bibby G, Krasniqi B, Reddy I, Sekar D, Ross K. Capturing the RNA castle: Exploiting MicroRNA inhibition for wound healing. FEBS J 2021; 289:5137-5151. [PMID: 34403569 DOI: 10.1111/febs.16160] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 07/14/2021] [Accepted: 08/16/2021] [Indexed: 02/06/2023]
Abstract
The growing pipelines of RNA-based therapies herald new opportunities to deliver better patient outcomes for complex disorders such as chronic nonhealing wounds associated with diabetes. Members of the microRNA (miRNA) family of small noncoding RNAs have emerged as targets for diverse elements of cutaneous wound repair, and both miRNA enhancement with mimics or inhibition with antisense oligonucleotides represent tractable approaches for miRNA-directed wound healing. In this review, we focus on miRNA inhibition strategies to stimulate skin repair given advances in chemical modifications to enhance the performance of antisense miRNA (anti-miRs). We first explore miRNAs whose inhibition in keratinocytes promotes keratinocyte migration, an essential part of re-epithelialisation during wound repair. We then focus on miRNAs that can be targeted for inhibition in endothelial cells to promote neovascularisation for wound healing in the context of diabetic mouse models. The picture that emerges is that direct comparisons of different anti-miRNAs modifications are required to establish the most translationally viable options in the chronic wound environment, that direct comparisons of the impact of inhibition of different miRNAs are needed to quantify and rank their relative efficacies in promoting wound repair, and that a standardised human ex vivo model of the diabetic wound is needed to reduce reliance on mouse models that do not necessarily enhance mechanistic understanding of miRNA-targeted wound healing.
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Affiliation(s)
- George Bibby
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
| | - Blerta Krasniqi
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
| | - Izaak Reddy
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
| | - Durairaj Sekar
- Dental Research Cell and Biomedical Research Unit (DRC-BRULAC), Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Science (SIMATS), Saveetha University, Chennai, India
| | - Kehinde Ross
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, UK
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222
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Pérez-Olivares L, Soehnlein O. Contemporary Lifestyle and Neutrophil Extracellular Traps: An Emerging Link in Atherosclerosis Disease. Cells 2021; 10:1985. [PMID: 34440753 PMCID: PMC8394440 DOI: 10.3390/cells10081985] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 07/29/2021] [Accepted: 07/30/2021] [Indexed: 12/15/2022] Open
Abstract
Neutrophil extracellular traps (NETs) are networks of extracellular genetic material decorated with proteins of nuclear, granular and cytosolic origin that activated neutrophils expel under pathogenic inflammatory conditions. NETs are part of the host's innate immune defense system against invading pathogens. Interestingly, these extracellular structures can also be released in response to sterile inflammatory stimuli (e.g., shear stress, lipidic molecules, pro-thrombotic factors, aggregated platelets, or pro-inflammatory cytokines), as in atherosclerosis disease. Indeed, NETs have been identified in the intimal surface of diseased arteries under cardiovascular disease conditions, where they sustain inflammation via NET-mediated cell-adhesion mechanisms and promote cellular dysfunction and tissue damage via NET-associated cytotoxicity. This review will focus on (1) the active role of neutrophils and NETs as underestimated players of the inflammatory process during atherogenesis and lesion progression; (2) how these extracellular structures communicate with the main cell types present in the atherosclerotic lesion in the arterial wall; and (3) how these neutrophil effector functions interplay with lifestyle-derived risk factors such as an unbalanced diet, physical inactivity, smoking or lack of sleep quality, which represent major elements in the development of cardiovascular disease.
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Affiliation(s)
- Laura Pérez-Olivares
- Center for Molecular Biology of Inflammation (ZMBE), Institute for Experimental Pathology (ExPat), Westfälische Wilhelms-Universität (WWU), 48149 Münster, Germany;
| | - Oliver Soehnlein
- Center for Molecular Biology of Inflammation (ZMBE), Institute for Experimental Pathology (ExPat), Westfälische Wilhelms-Universität (WWU), 48149 Münster, Germany;
- Department of Physiology and Pharmacology (FyFa), Karolinska Institute, 17165 Stockholm, Sweden
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223
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Ueda N, Musashi M, Shimoda T, Kawaguchi Y, Ohkubo I, Nakagawa Y. Involvement of G-CSF, IL-6, and cortisol in transient neutrophilia after marathon races. Eur J Haematol 2021; 107:583-591. [PMID: 34342052 DOI: 10.1111/ejh.13695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/26/2021] [Accepted: 07/30/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The aim of this study was to clarify the mechanisms of the transient increase in neutrophils after running standard marathon races by measurement of cytokines involved in the production and survival of neutrophils, and cortisol. METHODS Fourteen male runners who participated in the Hokkaido Marathon, which is the sole marathon race held in summer in Japan, and finished the standard marathon were analyzed sequentially from the start until a maximum of 8 days after the finish. RESULTS Neutrophilia was observed in all runners just after they reached the goal (mean neutrophils: 13 226/μL). IL-6, G-CSF, and cortisol, but not GM-CSF, increased at the same time. Time-course studies with complete blood counts, biochemical markers, cytokines, and cortisol showed transient increases in neutrophils, monocytes, myoglobin, high-sensitivity C-reactive protein (hsCRP), G-CSF, IL-6, and cortisol. The increase in hsCRP was delayed 6 hours from the first increase in neutrophils. Correlations were observed between the neutrophil count and G-CSF, IL-6, and cortisol (G-CSF; r = .667, IL-6; r = .667, cortisol; r = .623). CONCLUSION These results suggest that G-CSF is directly involved, and IL-6 is involved via cortisol in the transient neutrophilia that occurs after marathon races.
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Affiliation(s)
- Naho Ueda
- Master Course, Division of Nutrition Management, Graduate School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
| | - Manabu Musashi
- Division of Nutrition Management, Graduate School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
| | - Taeko Shimoda
- Division of Nutrition Management, Graduate School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
| | - Yuichi Kawaguchi
- Division of Nutrition Management, Graduate School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
| | - Iwao Ohkubo
- Division of Nutrition Management, Graduate School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
| | - Yukie Nakagawa
- Division of Nutrition Management, Graduate School of Nursing and Nutrition, Tenshi College, Sapporo, Japan
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Alexeev EE, Dowdell AS, Henen MA, Lanis JM, Lee JS, Cartwright IM, Schaefer REM, Ornelas A, Onyiah JC, Vögeli B, Colgan SP. Microbial-derived indoles inhibit neutrophil myeloperoxidase to diminish bystander tissue damage. FASEB J 2021; 35:e21552. [PMID: 33826788 DOI: 10.1096/fj.202100027r] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 03/03/2021] [Accepted: 03/08/2021] [Indexed: 01/20/2023]
Abstract
During episodes of acute inflammation, polymorphonuclear leukocytes (PMNs) are actively recruited to sites of inflammation or injury where they provide anti-microbial and wound-healing functions. One enzyme crucial for fulfilling these functions is myeloperoxidase (MPO), which generates hypochlorous acid from Cl- and hydrogen peroxide. The potential exists, however, that uncontrolled the extracellular generation of hypochlorous acid by MPO can cause bystander tissue damage and inhibit the healing response. Previous work suggests that the microbiota-derived tryptophan metabolites 1H-indole and related molecules ("indoles") are protective during intestinal inflammation, although their precise mechanism of action is unclear. In the present work, we serendipitously discovered that indoles are potent and selective inhibitors of MPO. Using both primary human PMNs and recombinant human MPO in a cell-free system, we revealed that indoles inhibit MPO at physiologic concentrations. Particularly, indoles block the chlorinating activity of MPO, a reliable marker for MPO-associated tissue damage, as measured by coulometric-coupled HPLC. Further, we observed direct interaction between indoles and MPO using the established biochemical techniques microscale thermophoresis and STD-NMR. Utilizing a murine colitis model, we demonstrate that indoles inhibit bystander tissue damage, reflected in decreased colon 3-chlorotyrosine and pro-inflammatory chemokine expression in vivo. Taken together, these results identify microbiota-derived indoles that acts as endogenous immunomodulatory compounds through their actions on MPO, suggesting a symbiotic association between the gut microbiota and host innate immune system. Such findings offer exciting new targets for future pharmacological intervention.
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Affiliation(s)
- Erica E Alexeev
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.,Inflammatory Bowel and Immunobiology Research Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Alexander S Dowdell
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Morkos A Henen
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.,Department of Pharmaceutical Organic Chemistry, Mansoura University, Mansoura, Egypt
| | - Jordi M Lanis
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - J Scott Lee
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ian M Cartwright
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Rachel E M Schaefer
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Alfredo Ornelas
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Joseph C Onyiah
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Beat Vögeli
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Sean P Colgan
- Mucosal Inflammation Program, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
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225
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Menarim BC, MacLeod JN, Dahlgren LA. Bone marrow mononuclear cells for joint therapy: The role of macrophages in inflammation resolution and tissue repair. World J Stem Cells 2021; 13:825-840. [PMID: 34367479 PMCID: PMC8316866 DOI: 10.4252/wjsc.v13.i7.825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/03/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023] Open
Abstract
Osteoarthritis (OA) is the most prevalent joint disease causing major disability and medical expenditures. Synovitis is a central feature of OA and is primarily driven by macrophages. Synovial macrophages not only drive inflammation but also its resolution, through a coordinated, simultaneous expression of pro- and anti-inflammatory mechanisms that are essential to counteract damage and recover homeostasis. Current OA therapies are largely based on anti-inflammatory principles and therefore block pro-inflammatory mechanisms such as prostaglandin E2 and Nuclear factor-kappa B signaling pathways. However, such mechanisms are also innately required for mounting a pro-resolving response, and their blockage often results in chronic low-grade inflammation. Following minor injury, macrophages shield the damaged area and drive tissue repair. If the damage is more extensive, macrophages incite inflammation recruiting more macrophages from the bone marrow to maximize tissue repair and ultimately resolve inflammation. However, sustained damage and inflammation often overwhelms pro-resolving mechanisms of synovial macrophages leading to the chronic inflammation and related tissue degeneration observed in OA. Recently, experimental and clinical studies have shown that joint injection with autologous bone marrow mononuclear cells replenishes inflamed joints with macrophage and hematopoietic progenitors, enhancing mechanisms of inflammation resolution, providing remarkable and long-lasting effects. Besides creating an ideal environment for resolution with high concentrations of interleukin-10 and anabolic growth factors, macrophage progenitors also have a direct role in tissue repair. Macrophages constitute a large part of the early granulation tissue, and further transdifferentiate from myeloid into a mesenchymal phenotype. These cells, characterized as fibrocytes, are essential for repairing osteochondral defects. Ongoing “omics” studies focused on identifying key drivers of macrophage-mediated resolution of joint inflammation and those required for efficient osteochondral repair, have the potential to uncover ways for developing engineered macrophages or off-the-shelf pro-resolving therapies that can benefit patients suffering from many types of arthropaties, not only OA.
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Affiliation(s)
- Bruno C Menarim
- Gluck Equine Research Center, Department of Veterinary Science, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, United States
| | - James N MacLeod
- Gluck Equine Research Center, Department of Veterinary Science, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY 40546, United States
| | - Linda A Dahlgren
- Department of Large Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA 24060, United States
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226
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Isles HM, Loynes CA, Alasmari S, Kon FC, Henry KM, Kadochnikova A, Hales J, Muir CF, Keightley MC, Kadirkamanathan V, Hamilton N, Lieschke GJ, Renshaw SA, Elks PM. Pioneer neutrophils release chromatin within in vivo swarms. eLife 2021; 10:68755. [PMID: 34292151 PMCID: PMC8298094 DOI: 10.7554/elife.68755] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 07/07/2021] [Indexed: 12/26/2022] Open
Abstract
Neutrophils are rapidly recruited to inflammatory sites where their coordinated migration forms clusters, a process termed neutrophil swarming. The factors that modulate early stages of neutrophil swarming are not fully understood, requiring the development of new in vivo models. Using transgenic zebrafish larvae to study endogenous neutrophil migration in a tissue damage model, we demonstrate that neutrophil swarming is a conserved process in zebrafish immunity, sharing essential features with mammalian systems. We show that neutrophil swarms initially develop around an individual pioneer neutrophil. We observed the violent release of extracellular cytoplasmic and nuclear fragments by the pioneer and early swarming neutrophils. By combining in vitro and in vivo approaches to study essential components of neutrophil extracellular traps (NETs), we provide in-depth characterisation and high-resolution imaging of the composition and morphology of these release events. Using a photoconversion approach to track neutrophils within developing swarms, we identify that the fate of swarm-initiating pioneer neutrophils involves extracellular chromatin release and that the key NET components gasdermin, neutrophil elastase, and myeloperoxidase are required for the swarming process. Together our findings demonstrate that release of cellular components by pioneer neutrophils is an initial step in neutrophil swarming at sites of tissue injury.
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Affiliation(s)
- Hannah M Isles
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Catherine A Loynes
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Sultan Alasmari
- Australian Regenerative Medicine Institute, Monash University, Clayton, Australia
| | - Fu Chuen Kon
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Katherine M Henry
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Anastasia Kadochnikova
- Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Jack Hales
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Clare F Muir
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | | | - Visakan Kadirkamanathan
- Department of Automatic Control and Systems Engineering, University of Sheffield, Sheffield, United Kingdom
| | - Noémie Hamilton
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Graham J Lieschke
- Australian Regenerative Medicine Institute, Monash University, Clayton, Australia
| | - Stephen A Renshaw
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
| | - Philip M Elks
- The Bateson Centre and Department of Infection, Immunity and Cardiovascular Disease, University of Sheffield Medical School, Sheffield, United Kingdom
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227
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Zhang H, Zhou Y, Qu M, Yu Y, Chen Z, Zhu S, Guo K, Chen W, Miao C. Tissue Factor-Enriched Neutrophil Extracellular Traps Promote Immunothrombosis and Disease Progression in Sepsis-Induced Lung Injury. Front Cell Infect Microbiol 2021; 11:677902. [PMID: 34336711 PMCID: PMC8317465 DOI: 10.3389/fcimb.2021.677902] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 06/21/2021] [Indexed: 12/24/2022] Open
Abstract
Background Patients with sepsis may progress to acute respiratory distress syndrome (ARDS). Evidence of neutrophil extracellular traps (NETs) in sepsis-induced lung injury has been reported. However, the role of circulating NETs in the progression and thrombotic tendency of sepsis-induced lung injury remains elusive. The aim of this study was to investigate the role of tissue factor-enriched NETs in the progression and immunothrombosis of sepsis-induced lung injury. Methods Human blood samples and an animal model of sepsis-induced lung injury were used to detect and evaluate NET formation in ARDS patients. Immunofluorescence imaging, ELISA, Western blotting, and qPCR were performed to evaluate in vitro NET formation and tissue factor (TF) delivery ability. DNase, an anti-TF antibody, and thrombin inhibitors were applied to evaluate the contribution of thrombin to TF-enriched NET formation and the contribution of TF-enriched NETs to immunothrombosis in ARDS patients. Results Significantly increased levels of TF-enriched NETs were observed in ARDS patients and mice. Blockade of NETs in ARDS mice alleviated disease progression, indicating a reduced lung wet/dry ratio and PaO2 level. In vitro data demonstrated that thrombin-activated platelets were responsible for increased NET formation and related TF exposure and subsequent immunothrombosis in ARDS patients. Conclusion The interaction of thrombin-activated platelets with PMNs in ARDS patients results in local NET formation and delivery of active TF. The notion that NETs represent a mechanism by which PMNs release thrombogenic signals during thrombosis may offer novel therapeutic targets.
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Affiliation(s)
- Hao Zhang
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yilu Zhou
- Department of Anesthesiology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Mengdi Qu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ying Yu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhaoyuan Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Shuainan Zhu
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Kefang Guo
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Wankun Chen
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China.,Cancer Center, Zhongshan Hospital, Fudan University, Shanghai, China
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228
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Bohaud C, Johansen MD, Jorgensen C, Kremer L, Ipseiz N, Djouad F. The Role of Macrophages During Mammalian Tissue Remodeling and Regeneration Under Infectious and Non-Infectious Conditions. Front Immunol 2021; 12:707856. [PMID: 34335621 PMCID: PMC8317995 DOI: 10.3389/fimmu.2021.707856] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/22/2021] [Indexed: 12/31/2022] Open
Abstract
Several infectious pathologies in humans, such as tuberculosis or SARS-CoV-2, are responsible for tissue or lung damage, requiring regeneration. The regenerative capacity of adult mammals is limited to few organs. Critical injuries of non-regenerative organs trigger a repair process that leads to a definitive architectural and functional disruption, while superficial wounds result in scar formation. Tissue lesions in mammals, commonly studied under non-infectious conditions, trigger cell death at the site of the injury, as well as the production of danger signals favouring the massive recruitment of immune cells, particularly macrophages. Macrophages are also of paramount importance in infected injuries, characterized by the presence of pathogenic microorganisms, where they must respond to both infection and tissue damage. In this review, we compare the processes implicated in the tissue repair of non-infected versus infected injuries of two organs, the skeletal muscles and the lungs, focusing on the primary role of macrophages. We discuss also the negative impact of infection on the macrophage responses and the possible routes of investigation for new regenerative therapies to improve the recovery state as seen with COVID-19 patients.
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Affiliation(s)
| | - Matt D Johansen
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France.,Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, NSW, Australia
| | - Christian Jorgensen
- IRMB, Univ Montpellier, INSERM, Montpellier, France.,Clinical Immunology and Osteoarticular Diseases Therapeutic Unit, Department of Rheumatology, Lapeyronie University Hospital, Montpellier, France
| | - Laurent Kremer
- Centre National de la Recherche Scientifique UMR 9004, Institut de Recherche en Infectiologie de Montpellier (IRIM), Université de Montpellier, Montpellier, France.,INSERM, IRIM, Montpellier, France
| | - Natacha Ipseiz
- Systems Immunity Research Institute, Heath Park, Cardiff University, Cardiff, United Kingdom
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229
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Inflammation and tumor progression: signaling pathways and targeted intervention. Signal Transduct Target Ther 2021; 6:263. [PMID: 34248142 PMCID: PMC8273155 DOI: 10.1038/s41392-021-00658-5] [Citation(s) in RCA: 826] [Impact Index Per Article: 275.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Revised: 05/11/2021] [Accepted: 05/23/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer development and its response to therapy are regulated by inflammation, which either promotes or suppresses tumor progression, potentially displaying opposing effects on therapeutic outcomes. Chronic inflammation facilitates tumor progression and treatment resistance, whereas induction of acute inflammatory reactions often stimulates the maturation of dendritic cells (DCs) and antigen presentation, leading to anti-tumor immune responses. In addition, multiple signaling pathways, such as nuclear factor kappa B (NF-kB), Janus kinase/signal transducers and activators of transcription (JAK-STAT), toll-like receptor (TLR) pathways, cGAS/STING, and mitogen-activated protein kinase (MAPK); inflammatory factors, including cytokines (e.g., interleukin (IL), interferon (IFN), and tumor necrosis factor (TNF)-α), chemokines (e.g., C-C motif chemokine ligands (CCLs) and C-X-C motif chemokine ligands (CXCLs)), growth factors (e.g., vascular endothelial growth factor (VEGF), transforming growth factor (TGF)-β), and inflammasome; as well as inflammatory metabolites including prostaglandins, leukotrienes, thromboxane, and specialized proresolving mediators (SPM), have been identified as pivotal regulators of the initiation and resolution of inflammation. Nowadays, local irradiation, recombinant cytokines, neutralizing antibodies, small-molecule inhibitors, DC vaccines, oncolytic viruses, TLR agonists, and SPM have been developed to specifically modulate inflammation in cancer therapy, with some of these factors already undergoing clinical trials. Herein, we discuss the initiation and resolution of inflammation, the crosstalk between tumor development and inflammatory processes. We also highlight potential targets for harnessing inflammation in the treatment of cancer.
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230
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Klyne DM, Barbe MF, James G, Hodges PW. Does the Interaction between Local and Systemic Inflammation Provide a Link from Psychology and Lifestyle to Tissue Health in Musculoskeletal Conditions? Int J Mol Sci 2021; 22:ijms22147299. [PMID: 34298917 PMCID: PMC8304860 DOI: 10.3390/ijms22147299] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/02/2021] [Accepted: 07/04/2021] [Indexed: 01/02/2023] Open
Abstract
Musculoskeletal conditions are known to involve biological, psychological, social and, often, lifestyle elements. However, these domains are generally considered in isolation from each other. This siloed approach is unlikely to be adequate to understand the complexity of these conditions and likely explains a major component of the disappointing effects of treatment. This paper presents a hypothesis that aims to provide a foundation to understand the interaction and integration between these domains. We propose a hypothesis that provides a plausible link between psychology and lifestyle factors with tissue level effects (such as connective tissue dysregulation/accumulation) in musculoskeletal conditions that is founded on understanding the molecular basis for interaction between systemic and local inflammation. The hypothesis provides plausible and testable links between mind and body, for which empirical evidence can be found for many aspects. We present this hypothesis from the perspective of connective tissue biology and pathology (fibrosis), the role of inflammation locally (tissue level), and how this inflammation is shaped by systemic inflammation through bidirectional pathways, and various psychological and lifestyle factors via their influence on systemic inflammation. This hypothesis provides a foundation for new consideration of the development and refinement of personalized multidimensional treatments for individuals with musculoskeletal conditions.
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Affiliation(s)
- David M. Klyne
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (G.J.); (P.W.H.)
- Correspondence: ; Tel.: +61-7-3365-4569
| | - Mary F. Barbe
- Department of Anatomy and Cell Biology, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
| | - Greg James
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (G.J.); (P.W.H.)
| | - Paul W. Hodges
- NHMRC Centre of Clinical Research Excellence in Spinal Pain, Injury and Health, School of Health and Rehabilitation Sciences, The University of Queensland, Brisbane 4072, Australia; (G.J.); (P.W.H.)
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231
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Bongers SH, Chen N, van Grinsven E, van Staveren S, Hassani M, Spijkerman R, Hesselink L, Lo Tam Loi AT, van Aalst C, Leijte GP, Kox M, Pickkers P, Hietbrink F, Leenen LPH, Koenderman L, Vrisekoop N. Kinetics of Neutrophil Subsets in Acute, Subacute, and Chronic Inflammation. Front Immunol 2021; 12:674079. [PMID: 34248955 PMCID: PMC8265311 DOI: 10.3389/fimmu.2021.674079] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 06/02/2021] [Indexed: 12/20/2022] Open
Abstract
At homeostasis the vast majority of neutrophils in the circulation expresses CD16 and CD62L within a narrow expression range, but this quickly changes in disease. Little is known regarding the changes in kinetics of neutrophils phenotypes in inflammatory conditions. During acute inflammation more heterogeneity was found, characterized by an increase in CD16dim banded neutrophils. These cells were probably released from the bone marrow (left shift). Acute inflammation induced by human experimental endotoxemia (LPS model) was additionally accompanied by an immediate increase in a CD62Llow neutrophil population, which was not as explicit after injury/trauma induced acute inflammation. The situation in sub-acute inflammation was more complex. CD62Llow neutrophils appeared in the peripheral blood several days (>3 days) after trauma with a peak after 10 days. A similar situation was found in the blood of COVID-19 patients returning from the ICU. Sorted CD16low and CD62Llow subsets from trauma and COVID-19 patients displayed the same nuclear characteristics as found after experimental endotoxemia. In diseases associated with chronic inflammation (stable COPD and treatment naive HIV) no increases in CD16low or CD62Llow neutrophils were found in the peripheral blood. All neutrophil subsets were present in the bone marrow during homeostasis. After LPS rechallenge, these subsets failed to appear in the circulation, but continued to be present in the bone marrow, suggesting the absence of recruitment signals. Because the subsets were reported to have different functionalities, these results on the kinetics of neutrophil subsets in a range of inflammatory conditions contribute to our understanding on the role of neutrophils in health and disease.
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Affiliation(s)
- Suzanne H Bongers
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Na Chen
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Erinke van Grinsven
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Selma van Staveren
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Marwan Hassani
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Roy Spijkerman
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Lilian Hesselink
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Adèle T Lo Tam Loi
- Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Corneli van Aalst
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Guus P Leijte
- Department of Intensive Care, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Matthijs Kox
- Department of Intensive Care, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Peter Pickkers
- Department of Intensive Care, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Center for Infectious Diseases (RCI), Radboud University Medical Center, Nijmegen, Netherlands
| | - Falco Hietbrink
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Luke P H Leenen
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Trauma Surgery, University Medical Center Utrecht, Utrecht, Netherlands
| | - Leo Koenderman
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Nienke Vrisekoop
- Center for Translational Immunology (CTI), University Medical Center Utrecht, Utrecht, Netherlands.,Department of Respiratory Medicine, University Medical Center Utrecht, Utrecht, Netherlands
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232
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Experimental Approaches to Evaluate Leukocyte-Endothelial Cell Interactions in Sepsis and Inflammation. Shock 2021; 53:585-595. [PMID: 32080065 DOI: 10.1097/shk.0000000000001407] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Sepsis is a life-threatening syndrome of organ dysfunction caused by a dysregulated host response to infection characterized by excessive neutrophil infiltration into vital organs. In sepsis, patients often die of organ failure and therapies directed against endothelial cell dysfunction and tissue damage are important targets for treatment of this disease. Novel approaches are required to understand the underlying pathophysiology of neutrophil dysregulation and neutrophil-endothelial cell interactions that play a critical role in the early course of organ damage and disruption of endothelial protective barrier. Here, we review methodologies that our laboratories have employed to study neutrophil-endothelial interaction and endothelial barrier function in in vivo and in vitro models of sepsis. We will focus on in vivo rodent models of sepsis and in vitro tools that use human cell culture models under static conditions and the more physiologically relevant biomimetic microfluidic assays. This Methods paper is based on our presentation in the Master Class Symposium at the 41st Annual Conference on Shock 2018.
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233
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Anastasiou IA, Eleftheriadou I, Tentolouris A, Samakidou G, Papanas N, Tentolouris N. Therapeutic Properties of Honey for the Management of Wounds; Is There a Role in the Armamentarium of Diabetic Foot Ulcer Treatment? Results From In vitro and In vivo Studies. INT J LOW EXTR WOUND 2021; 20:291-299. [PMID: 34142897 DOI: 10.1177/15347346211026819] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Diabetic foot ulcers are one of the most dreadful complications of diabetes mellitus and efforts to accelerate diabetic wound healing are of paramount importance to prevent ulcer infections and subsequent lower-limb amputations. There are several treatment approaches for the management of diabetic foot ulcers and honey seems to be a safe and cost-effective therapeutic approach on top of standard of care. The aim of this review was to summarize the therapeutic properties of honey and the data regarding its possible favorable effects on diabetic wound healing. A literature search of articles from 1986 until April 2021 was performed using MEDLINE, EMBASE, and the Cochrane Library to assess for studies examining the therapeutic wound healing properties of honey, it's in vitro effect, and the efficacy and/or mechanism of action of several types of honey used for the treatment of diabetic animal wounds. Honey has antioxidant, anti-inflammatory, and antibacterial properties and in vitro studies of keratinocytes and fibroblasts, as well as studies in diabetic animal models show that treatment with honey is associated with increased re-epithelialization and collagen production, higher wound contraction, and faster wound healing. The use of honey could be a promising approach for the management of diabetic foot ulcers.
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Affiliation(s)
- Ioanna A Anastasiou
- Medical School, 68989National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
| | - Ioanna Eleftheriadou
- Medical School, 68989National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
| | - Anastasios Tentolouris
- Medical School, 68989National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
| | - Georgia Samakidou
- Medical School, 68989National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
| | | | - Nikolaos Tentolouris
- Medical School, 68989National and Kapodistrian University of Athens, Laiko General Hospital, Athens, Greece
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234
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Intra-nasal administration of sperm head turns neutrophil into reparative mode after PGE1- and/or Ang II receptor-mediated phagocytosis followed by expression of sperm head's coding RNA. Int Immunopharmacol 2021; 98:107696. [PMID: 34147914 DOI: 10.1016/j.intimp.2021.107696] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/25/2021] [Accepted: 04/18/2021] [Indexed: 01/01/2023]
Abstract
Having played homeostatic role, the immune system maintains the integrity of the body. Such a characteristic makes immune system as an attractive candidate for resolution of inflammatory disease followed by tissue repair. As first responder cells, neutrophils direct immune response playing key role in tissue remodeling. Previous studies revealed that sperm attracts neutrophils and promotes uterine remodeling suitable for fetus growth. Accordingly, sperm and more efficiently sperm head had remodeling effects on damaged brain in Alzheimer's disease (AD) model. To further reveal the mechanism, two kinds of in vivo study, including kinetic study and inhibition of neutrophil phagocytosis on AD model, as well as in vitro study using co-culture of neutrophil and sperm head were performed. Kinetic study revealed that sperm head recruited neutrophil to nasal mucosa similar to that of uterus and sperm head-phagocytizing neutrophils acquired new activation status comparing to control. In vitro study also demonstrated that sperm head-phagocytizing neutrophils acquire new activation status and express coding RNAs of sperm head. Accordingly, inhibition of neutrophil phagocytic activity abrogated therapeutic effects of sperm head. Neutrophils activation status is important in the fate of inflammatory process. Modulation but not suppression of neutrophils helps remodeling and repair of damaged tissue. Sperm head is an intelligent cell and not just a simple particle to remove by phagocytosis but instead can program neutrophils and consequently immune response into reparative mode after phagocytosis.
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235
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Kupke LS, Arndt S, Lenzer S, Metz S, Unger P, Zimmermann JL, Bosserhoff AK, Gruber M, Karrer S. Cold Atmospheric Plasma Promotes the Immunoreactivity of Granulocytes In Vitro. Biomolecules 2021; 11:902. [PMID: 34204360 PMCID: PMC8235417 DOI: 10.3390/biom11060902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 06/01/2021] [Accepted: 06/15/2021] [Indexed: 12/22/2022] Open
Abstract
Cold atmospheric plasma (CAP) reduces bacteria and interacts with tissues and cells, thus improving wound healing. The CAP-related induction of neutrophils was recently described in stained sections of wound tissue in mice. Consequently, this study aimed to examine the functionality of human polymorphonuclear cells (PMN)/granulocytes through either a plasma-treated solution (PTS) or the direct CAP treatment with different plasma modes and treatment durations. PTS analysis yielded mode-dependent differences in the production of reactive oxygen species (ROS) and reactive nitrogen species (RNS) after CAP treatment. Live-cell imaging did not show any chemo-attractive or NETosis-inducing effect on PMNs treated with PTS. The time to maximum ROS production (TmaxROS) in PMNs was reduced by PTS and direct CAP treatment. PMNs directly treated with CAP showed an altered cell migration dependent on the treatment duration as well as decreased TmaxROS without inducing apoptosis. Additionally, flow cytometry showed enhanced integrin and selectin expression, as a marker of activation, on PMN surfaces. In conclusion, the modification of PMN immunoreactivity may be a main supporting mechanism for CAP-induced improvement in wound healing.
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Affiliation(s)
- Laura S. Kupke
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | - Stephanie Arndt
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | - Simon Lenzer
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | - Sophia Metz
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
| | - Petra Unger
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
| | | | - Anja-Katrin Bosserhoff
- Emil-Fischer-Center, Institute of Biochemistry, University of Erlangen-Nuernberg (FAU), 91054 Erlangen, Germany;
| | - Michael Gruber
- Department of Anesthesiology, University Hospital Regensburg, 93053 Regensburg, Germany; (L.S.K.); (S.L.); (S.M.); (M.G.)
| | - Sigrid Karrer
- Department of Dermatology, University Hospital Regensburg, 93053 Regensburg, Germany; (P.U.); (S.K.)
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236
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Endothelial Dysfunction and Neutrophil Degranulation as Central Events in Sepsis Physiopathology. Int J Mol Sci 2021; 22:ijms22126272. [PMID: 34200950 PMCID: PMC8230689 DOI: 10.3390/ijms22126272] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/02/2021] [Accepted: 06/08/2021] [Indexed: 12/29/2022] Open
Abstract
Sepsis is a major health problem worldwide. It is a time-dependent disease, with a high rate of morbidity and mortality. In this sense, an early diagnosis is essential to reduce these rates. The progressive increase of both the incidence and prevalence of sepsis has translated into a significant socioeconomic burden for health systems. Currently, it is the leading cause of noncoronary mortality worldwide and represents one of the most prevalent pathologies both in hospital emergency services and in intensive care units. In this article, we review the role of both endothelial dysfunction and neutrophil dysregulation in the physiopathology of this disease. The lack of a key symptom in sepsis makes it difficult to obtain a quick and accurate diagnosis of this condition. Thus, it is essential to have fast and reliable diagnostic tools. In this sense, the use of biomarkers can be a very important alternative when it comes to achieving these goals. Both new biomarkers and treatments related to endothelial dysfunction and neutrophil dysregulation deserve to be further investigated in order to open new venues for the diagnosis, treatment and prognosis of sepsis.
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237
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Impact of Influenza A Virus Shutoff Proteins on Host Immune Responses. Vaccines (Basel) 2021; 9:vaccines9060629. [PMID: 34200539 PMCID: PMC8230195 DOI: 10.3390/vaccines9060629] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/03/2021] [Accepted: 06/07/2021] [Indexed: 12/26/2022] Open
Abstract
Influenza A virus (IAV) is a significant human pathogen that causes seasonal epidemics. Although various types of vaccines are available, IAVs still circulate among human populations, possibly due to their ability to circumvent host immune responses. IAV expresses two host shutoff proteins, PA-X and NS1, which antagonize the host innate immune response. By transcriptomic analysis, we previously showed that PA-X is a major contributor for general shutoff, while shutoff active NS1 specifically inhibits the expression of host cytokines, MHC molecules, and genes involved in innate immunity in cultured human cells. So far, the impact of these shutoff proteins in the acquired immune response in vivo has not been determined in detail. In this study, we analyzed the effects of PA-X and NS1 shutoff activities on immune response using recombinant influenza A/California/04/2009 viruses containing mutations affecting the expression of shutoff active PA-X and NS1 in a mouse model. Our data indicate that the virus without shutoff activities induced the strongest T and B cell responses. Both PA-X and NS1 reduced host immune responses, but shutoff active NS1 most effectively suppressed lymphocyte migration to the lungs, antibody production, and the generation of IAV specific CD4+ and CD8+ T cells. NS1 also prevented the generation of protective immunity against a heterologous virus challenge. These data indicate that shutoff active NS1 plays a major role in suppressing host immune responses against IAV infection.
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238
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Seidelin JB, Bahl MI, Licht TR, Mead BE, Karp JM, Johansen JV, Riis LB, Galera MR, Woetmann A, Bjerrum JT. Acute Experimental Barrier Injury Triggers Ulcerative Colitis-Specific Innate Hyperresponsiveness and Ulcerative Colitis-Type Microbiome Changes in Humans. Cell Mol Gastroenterol Hepatol 2021; 12:1281-1296. [PMID: 34118489 PMCID: PMC8455368 DOI: 10.1016/j.jcmgh.2021.06.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/04/2021] [Accepted: 06/04/2021] [Indexed: 01/13/2023]
Abstract
BACKGROUND AND AIMS The trigger hypothesis opens the possibility of anti-flare initiation therapies by stating that ulcerative colitis (UC) flares originate from inadequate responses to acute mucosal injuries. However, experimental evidence is restricted by a limited use of suitable human models. We thus aimed to investigate the acute mucosal barrier injury responses in humans with and without UC using an experimental injury model. METHODS A standardized mucosal break was inflicted in the sigmoid colon of 19 patients with UC in endoscopic and histological remission and 20 control subjects. Postinjury responses were assessed repeatedly by high-resolution imaging and sampling to perform Geboes scoring, RNA sequencing, and injury niche microbiota 16S ribosomal RNA gene sequencing. RESULTS UC patients had more severe endoscopic postinjury inflammation than did control subjects (P < .01), an elevated modified Geboes score (P < .05), a rapid induction of innate response gene sets (P < .05) and antimicrobial peptides (P < .01), and engagement of neutrophils (P < .01). Innate lymphoid cell type 3 (ILC3) markers were increased preinjury (P < .01), and ILC3 activating cytokines were highly induced postinjury, resulting in an increase in ILC3-type cytokine interleukin-17A. Across groups, the postinjury mucosal microbiome had higher bacterial load (P < .0001) and lower α-diversity (P < .05). CONCLUSIONS UC patients in remission respond to mucosal breaks by an innate hyperresponse engaging resident regulatory ILC3s and a subsequent adaptive activation. The postinjury inflammatory bowel disease-like microbiota diversity decrease is irrespective of diagnosis, suggesting that the dysbiosis is secondary to host injury responses. We provide a model for the study of flare initiation in the search for antitrigger-directed therapies.
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Affiliation(s)
- Jakob Benedict Seidelin
- Department of Gastroenterology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark,Correspondence Address correspondence to: Jakob Benedict Seidelin, MD, PhD, DMSc, Department of Gastroenterology D112M, Herlev Hospital, University of Copenhagen, 1 Borgmester Ib Juuls Vej, DK-2730 Herlev, Denmark. fax: 45 44 94 04 56.
| | - Martin Iain Bahl
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Tine Rask Licht
- National Food Institute, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Benjamin E. Mead
- Harvard-MIT Division of Health Sciences and Technology, Institute for Medical and Engineering Science and Harvard Medical School, Cambridge, Massachusetts,Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts,Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts,Broad Institute of MIT and Harvard, Cambridge, Massachusetts,Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts,Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts,Ragon Institute of Massachusetts General Hospital, MIT, and Harvard, Cambridge, Massachusetts
| | - Jeffrey M. Karp
- Harvard-MIT Division of Health Sciences and Technology, Institute for Medical and Engineering Science and Harvard Medical School, Cambridge, Massachusetts,Harvard Stem Cell Institute, Harvard University, Cambridge, Massachusetts,Broad Institute of MIT and Harvard, Cambridge, Massachusetts,Harvard Medical School, Boston, Massachusetts,Department of Anesthesiology, Perioperative and Pain Medicine, Brigham and Women’s Hospital, Cambridge, Massachusetts
| | - Jens Vilstrup Johansen
- Bioinformatics Core Facility, Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark
| | - Lene Buhl Riis
- Department of Pathology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Marina Ramírez Galera
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark,LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Anders Woetmann
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark,LEO Foundation Skin Immunology Research Center, University of Copenhagen, Copenhagen, Denmark
| | - Jacob Tveiten Bjerrum
- Department of Gastroenterology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
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239
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de Brito Sousa K, de Fátima Teixeira da Silva D, Rodrigues MFSD, Garcia MP, de Oliveira Rodini C, Mesquita-Ferrari RA, Hamblin MR, Bussadori SK, Nunes FD, Fernandes KPS. Effects of the phenotypic polarization state of human leukocytes on the optical absorbance spectrum. JOURNAL OF BIOPHOTONICS 2021; 14:e202000487. [PMID: 33638279 DOI: 10.1002/jbio.202000487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/05/2021] [Accepted: 02/21/2021] [Indexed: 06/12/2023]
Abstract
This study evaluated the optical absorbance spectrum of human monocytes, neutrophils and lymphocytes polarized, or not, to the inflammatory or immunoregulatory phenotypes. Peripheral human blood leukocytes were isolated and polarized (10 ng/mL) with LPS or IL-4 + LPS for 2 hours. After polarization, cells were washed and incubated for an additional 24 hours (monocytes and lymphocytes) or 12 hours (neutrophils). Next, cells were collected to evaluate the optical absorbance spectrum. The three types of leukocytes exhibited absorbance in the region from 450 to 900 nm, with greater absorbance at wavelengths lower than 570 nm. Lymphocytes had a second region of greater absorbance between 770 and 900 nm. Inflammatory monocytes and lymphocytes showed increased absorbance of blue, green and yellow wavelengths (monocytes), as well as red and infrared wavelengths (monocytes and lymphocytes). Immunoregulatory polarization altered the absorbance of monocytes and lymphocytes very little. Neutrophils treated with LPS or LPS + IL-4 exhibited lower absorbance at wavelengths higher than 575 nm compared to untreated cells. The present findings showed that leukocytes exhibit greater absorbance in regions of the spectrum that have not been much used in photobiomodulation (PBM), and the polarization of these cells can affect their capacity to absorb light. Taken together, these results suggest new perspectives in the use of PBM in the clinical setting depending on the wavelengths and the stage of the inflammatory process.
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Affiliation(s)
- Kaline de Brito Sousa
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
| | | | | | - Mónica Pereira Garcia
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
| | - Carolina de Oliveira Rodini
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
| | - Raquel Agnelli Mesquita-Ferrari
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
- Postgraduate Program in Rehabilitation Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Johannesburg, South Africa
| | - Sandra Kalil Bussadori
- Postgraduate Program in Biophotonics Applied to Health Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
- Postgraduate Program in Rehabilitation Sciences, Nove de Julho University/UNINOVE, São Paulo, Brazil
| | - Fabio Daumas Nunes
- Department of Oral Pathology, Dental School, Universidade de Sao Paulo, São Paulo, Brazil
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240
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Götz P, Braumandl A, Kübler M, Kumaraswami K, Ishikawa-Ankerhold H, Lasch M, Deindl E. C3 Deficiency Leads to Increased Angiogenesis and Elevated Pro-Angiogenic Leukocyte Recruitment in Ischemic Muscle Tissue. Int J Mol Sci 2021; 22:5800. [PMID: 34071589 PMCID: PMC8198161 DOI: 10.3390/ijms22115800] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 12/24/2022] Open
Abstract
The complement system is a potent inflammatory trigger, activator, and chemoattractant for leukocytes, which play a crucial role in promoting angiogenesis. However, little information is available about the influence of the complement system on angiogenesis in ischemic muscle tissue. To address this topic and analyze the impact of the complement system on angiogenesis, we induced muscle ischemia in complement factor C3 deficient (C3-/-) and wildtype control mice by femoral artery ligation (FAL). At 24 h and 7 days after FAL, we isolated the ischemic gastrocnemius muscles and investigated them by means of (immuno-)histological analyses. C3-/- mice showed elevated ischemic damage 7 days after FAL, as evidenced by H&E staining. In addition, angiogenesis was increased in C3-/- mice, as demonstrated by increased capillary/muscle fiber ratio and increased proliferating endothelial cells (CD31+/BrdU+). Moreover, our results showed that the total number of leukocytes (CD45+) was increased in C3-/- mice, which was based on an increased number of neutrophils (MPO+), neutrophil extracellular trap formation (MPO+/CitH3+), and macrophages (CD68+) displaying a shift toward an anti-inflammatory and pro-angiogenic M2-like polarized phenotype (CD68+/MRC1+). In summary, we show that the deficiency of complement factor C3 increased neutrophil and M2-like polarized macrophage accumulation in ischemic muscle tissue, contributing to angiogenesis.
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Affiliation(s)
- Philipp Götz
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Anna Braumandl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Matthias Kübler
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Konda Kumaraswami
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
| | - Hellen Ishikawa-Ankerhold
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Department of Internal Medicine I, Faculty of Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Manuel Lasch
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany
| | - Elisabeth Deindl
- Walter-Brendel-Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München, 81377 Munich, Germany; (P.G.); (A.B.); (M.K.); (K.K.); (H.I.-A.); (M.L.)
- Biomedical Center, Institute of Cardiovascular Physiology and Pathophysiology, Faculty of Medicine, Ludwig-Maximilians-Universität München, 82152 Planegg-Martinsried, Germany
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Abstract
Wound care is a multidisciplinary field with significant economic burden to our healthcare system. Not only does wound care cost the US healthcare system $20 billion annually, but wounds also remarkably impact the quality of life of patients; wounds pose significant risk of mortality, as the five-year mortality rate for diabetic foot ulcers (DFUs) and ischemic ulcers is notably higher compared to commonly encountered cancers such as breast and prostate. Although it is important to measure how wounds may or may not be improving over time, the only relative "marker" for this is wound area measurement-area measurements can help providers determine if a wound is on a healing or non-healing trajectory. Because wound area measurements are currently the only readily available "gold standard" for predicting healing outcomes, there is a pressing need to understand how other relative biomarkers may play a role in wound healing. Currently, wound care centers across the nation employ various techniques to obtain wound area measurements; length and width of a wound can be measured with a ruler, but this carries a high amount of inter- and intrapersonal error as well as uncertainty. Acetate tracings could be used to limit the amount of error but do not account for depth, thereby making them inaccurate. Here, we discuss current imaging modalities and how they can serve to accurately measure wound size and serve as useful adjuncts in wound assessment. Moreover, new imaging modalities are also discussed and how up-and-coming technologies can provide important information on "biomarkers" for wound healing.
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Emmons TR, Giridharan T, Singel KL, Khan ANH, Ricciuti J, Howard K, Silva-Del Toro SL, Debreceni IL, Aarts CEM, Brouwer MC, Suzuki S, Kuijpers TW, Jongerius I, Allen LAH, Ferreira VP, Schubart A, Sellner H, Eder J, Holland SM, Ram S, Lederer JA, Eng KH, Moysich KB, Odunsi K, Yaffe MB, Zsiros E, Segal BH. Mechanisms Driving Neutrophil-Induced T-cell Immunoparalysis in Ovarian Cancer. Cancer Immunol Res 2021; 9:790-810. [PMID: 33990375 DOI: 10.1158/2326-6066.cir-20-0922] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 02/05/2021] [Accepted: 05/12/2021] [Indexed: 11/16/2022]
Abstract
T-cell activation and expansion in the tumor microenvironment (TME) are critical for antitumor immunity. Neutrophils in the TME acquire a complement-dependent T-cell suppressor phenotype that is characterized by inhibition of T-cell proliferation and activation through mechanisms distinct from those of myeloid-derived suppressor cells. In this study, we used ascites fluid supernatants (ASC) from patients with ovarian cancer as an authentic component of the TME to evaluate the effects of ASC on neutrophil function and mechanisms for neutrophil-driven immune suppression. ASC prolonged neutrophil life span, decreased neutrophil density, and induced nuclear hypersegmentation. Mass cytometry analysis showed that ASC induced 15 distinct neutrophil clusters. ASC stimulated complement deposition and signaling in neutrophils, resulting in surface mobilization of granule constituents, including NADPH oxidase. NADPH oxidase activation and phosphatidylserine signaling were required for neutrophil suppressor function, although we did not observe a direct role of extracellular reactive oxygen species in inhibiting T-cell proliferation. Postoperative surgical drainage fluid also induced a complement-dependent neutrophil suppressor phenotype, pointing to this effect as a general response to injury. Like circulating lymphocytes, ASC-activated neutrophils caused complement-dependent suppression of tumor-associated lymphocytes. ASC-activated neutrophils adhered to T cells and caused trogocytosis of T-cell membranes. These injury and signaling cues resulted in T-cell immunoparalysis characterized by impaired NFAT translocation, IL2 production, glucose uptake, mitochondrial function, and mTOR activation. Our results demonstrate that complement-dependent priming of neutrophil effector functions in the TME induces a T-cell nonresponsiveness distinct from established checkpoint pathways and identify targets for immunotherapy.See related Spotlight by Cassatella, p. 725.
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Affiliation(s)
- Tiffany R Emmons
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Thejaswini Giridharan
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Kelly L Singel
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Anm Nazmul H Khan
- Department of Internal Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Jason Ricciuti
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Kaitlyn Howard
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Ivy L Debreceni
- Inflammation Program and Immunology Graduate Training Program, University of Iowa, Iowa City, Iowa
| | - Cathelijn E M Aarts
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, the Netherlands
| | - Mieke C Brouwer
- Department of Immunopathology, Sanquin Research, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands
| | - Sora Suzuki
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Taco W Kuijpers
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center (AMC), University of Amsterdam, Amsterdam, the Netherlands.,Department of Pediatric Immunology, Rheumatology and Infectious Diseases, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
| | - Ilse Jongerius
- Department of Immunopathology, Sanquin Research, Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, Amsterdam, the Netherlands.,Department of Pediatric Immunology, Rheumatology and Infectious Diseases, Emma Children's Hospital, Amsterdam UMC, Amsterdam, the Netherlands
| | - Lee-Ann H Allen
- Inflammation Program, Departments of Medicine and Microbiology and Immunology, University of Iowa, Iowa City, Iowa
| | - Viviana P Ferreira
- Department of Medical Microbiology and Immunology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio
| | - Anna Schubart
- Novartis Institutes for BioMedical Research, Novartis Campus, Basel, Switzerland
| | - Holger Sellner
- Novartis Institutes for BioMedical Research, Novartis Campus, Basel, Switzerland
| | - Jörg Eder
- Novartis Institutes for BioMedical Research, Novartis Campus, Basel, Switzerland
| | - Steven M Holland
- Laboratory of Clinical Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland
| | - Sanjay Ram
- Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, Worcester, Massachusetts
| | - James A Lederer
- Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Kevin H Eng
- Department of Biostatistics and Bioinformatics, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Kirsten B Moysich
- Department of Cancer Prevention and Control, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Kunle Odunsi
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, New York.,Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Michael B Yaffe
- Center for Precision Cancer Medicine, Departments of Biological Engineering and Biology, Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts.,Division of Acute Care Surgery, Trauma and Surgical Critical Care, Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Emese Zsiros
- Department of Gynecologic Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, New York.,Center for Immunotherapy, Roswell Park Comprehensive Cancer Center, Buffalo, New York
| | - Brahm H Segal
- Department of Immunology, Roswell Park Comprehensive Cancer Center, Buffalo, New York. .,Department of Internal Medicine, Roswell Park Comprehensive Cancer Center, Buffalo, New York.,Department of Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, New York
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243
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Zwicky SN, Stroka D, Zindel J. Sterile Injury Repair and Adhesion Formation at Serosal Surfaces. Front Immunol 2021; 12:684967. [PMID: 34054877 PMCID: PMC8160448 DOI: 10.3389/fimmu.2021.684967] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 04/23/2021] [Indexed: 12/19/2022] Open
Abstract
Most multicellular organisms have a major body cavity containing vital organs. This cavity is lined by a mucosa-like serosal surface and filled with serous fluid which suspends many immune cells. Injuries affecting the major body cavity are potentially life-threatening. Here we summarize evidence that unique damage detection and repair mechanisms have evolved to ensure immediate and swift repair of injuries at serosal surfaces. Furthermore, thousands of patients undergo surgery within the abdominal and thoracic cavities each day. While these surgeries are potentially lifesaving, some patients will suffer complications due to inappropriate scar formation when wound healing at serosal surfaces defects. These scars called adhesions cause profound challenges for health care systems and patients. Therefore, reviewing the mechanisms of wound repair at serosal surfaces is of clinical importance. Serosal surfaces will be introduced with a short embryological and microanatomical perspective followed by a discussion of the mechanisms of damage recognition and initiation of sterile inflammation at serosal surfaces. Distinct immune cells populations are free floating within the coelomic (peritoneal) cavity and contribute towards damage recognition and initiation of wound repair. We will highlight the emerging role of resident cavity GATA6+ macrophages in repairing serosal injuries and compare serosal (mesothelial) injuries with injuries to the blood vessel walls. This allows to draw some parallels such as the critical role of the mesothelium in regulating fibrin deposition and how peritoneal macrophages can aggregate in a platelet-like fashion in response to sterile injury. Then, we discuss how serosal wound healing can go wrong, causing adhesions. The current pathogenetic understanding of and potential future therapeutic avenues against adhesions are discussed.
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Affiliation(s)
- Simone N Zwicky
- Department of Visceral Surgery and Medicine, Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Deborah Stroka
- Department of Visceral Surgery and Medicine, Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
| | - Joel Zindel
- Department of Visceral Surgery and Medicine, Department for BioMedical Research (DBMR), University of Bern, Bern, Switzerland
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244
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Schuster R, Rockel JS, Kapoor M, Hinz B. The inflammatory speech of fibroblasts. Immunol Rev 2021; 302:126-146. [PMID: 33987902 DOI: 10.1111/imr.12971] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 04/18/2021] [Accepted: 04/23/2021] [Indexed: 02/06/2023]
Abstract
Activation of fibroblasts is a key event during normal tissue repair after injury and the dysregulated repair processes that result in organ fibrosis. To most researchers, fibroblasts are rather unremarkable spindle-shaped cells embedded in the fibrous collagen matrix of connective tissues and/or deemed useful to perform mechanistic studies with adherent cells in culture. For more than a century, fibroblasts escaped thorough classification due to the lack of specific markers and were treated as the leftovers after all other cells have been identified from a tissue sample. With novel cell lineage tracing and single cell transcriptomics tools, bona fide fibroblasts emerge as only one heterogeneous sub-population of a much larger group of partly overlapping cell types, including mesenchymal stromal cells, fibro-adipogenic progenitor cells, pericytes, and/or perivascular cells. All these cells are activated to contribute to tissue repair after injury and/or chronic inflammation. "Activation" can entail various functions, such as enhanced proliferation, migration, instruction of inflammatory cells, secretion of extracellular matrix proteins and organizing enzymes, and acquisition of a contractile myofibroblast phenotype. We provide our view on the fibroblastic cell types and activation states playing a role during physiological and pathological repair and their crosstalk with inflammatory macrophages. Inflammation and fibrosis of the articular synovium during rheumatoid arthritis and osteoarthritis are used as specific examples to discuss inflammatory fibroblast phenotypes. Ultimately, delineating the precursors and functional roles of activated fibroblastic cells will contribute to better and more specific intervention strategies to treat fibroproliferative and fibrocontractive disorders.
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Affiliation(s)
- Ronen Schuster
- Laboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada.,PhenomicAI, MaRS Centre, Toronto, ON, Canada
| | - Jason S Rockel
- Schroeder Arthritis Institute, University Health Network, Toronto, ON, Canada.,Krembil Research Institute, University Health Network, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Mohit Kapoor
- Schroeder Arthritis Institute, University Health Network, Toronto, ON, Canada.,Krembil Research Institute, University Health Network, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
| | - Boris Hinz
- Laboratory of Tissue Repair and Regeneration, Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
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245
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Acute skin exposure to ultraviolet light triggers neutrophil-mediated kidney inflammation. Proc Natl Acad Sci U S A 2021; 118:2019097118. [PMID: 33397815 DOI: 10.1073/pnas.2019097118] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Photosensitivity to ultraviolet (UV) light affects up to ∼80% of lupus patients. Sunlight exposure can exacerbate local as well as systemic manifestations of lupus, including nephritis, by mechanisms that are poorly understood. Here, we report that acute skin exposure to UV light triggers a neutrophil-dependent injury response in the kidney characterized by upregulated expression of endothelial adhesion molecules as well as inflammatory and injury markers associated with transient proteinuria. We showed that UV light stimulates neutrophil migration not only to the skin but also to the kidney in an IL-17A-dependent manner. Using a photoactivatable lineage tracing approach, we observed that a subset of neutrophils found in the kidney had transited through UV light-exposed skin, suggesting reverse transmigration. Besides being required for the renal induction of genes encoding mediators of inflammation (vcam-1, s100A9, and Il-1b) and injury (lipocalin-2 and kim-1), neutrophils significantly contributed to the kidney type I interferon signature triggered by UV light. Together, these findings demonstrate that neutrophils mediate subclinical renal inflammation and injury following skin exposure to UV light. Of interest, patients with lupus have subpopulations of blood neutrophils and low-density granulocytes with similar phenotypes to reverse transmigrating neutrophils observed in the mice post-UV exposure, suggesting that these cells could have transmigrated from inflamed tissue, such as the skin.
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246
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d'Enfert C, Kaune AK, Alaban LR, Chakraborty S, Cole N, Delavy M, Kosmala D, Marsaux B, Fróis-Martins R, Morelli M, Rosati D, Valentine M, Xie Z, Emritloll Y, Warn PA, Bequet F, Bougnoux ME, Bornes S, Gresnigt MS, Hube B, Jacobsen ID, Legrand M, Leibundgut-Landmann S, Manichanh C, Munro CA, Netea MG, Queiroz K, Roget K, Thomas V, Thoral C, Van den Abbeele P, Walker AW, Brown AJP. The impact of the Fungus-Host-Microbiota interplay upon Candida albicans infections: current knowledge and new perspectives. FEMS Microbiol Rev 2021; 45:fuaa060. [PMID: 33232448 PMCID: PMC8100220 DOI: 10.1093/femsre/fuaa060] [Citation(s) in RCA: 141] [Impact Index Per Article: 47.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2020] [Accepted: 11/18/2020] [Indexed: 12/11/2022] Open
Abstract
Candida albicans is a major fungal pathogen of humans. It exists as a commensal in the oral cavity, gut or genital tract of most individuals, constrained by the local microbiota, epithelial barriers and immune defences. Their perturbation can lead to fungal outgrowth and the development of mucosal infections such as oropharyngeal or vulvovaginal candidiasis, and patients with compromised immunity are susceptible to life-threatening systemic infections. The importance of the interplay between fungus, host and microbiota in driving the transition from C. albicans commensalism to pathogenicity is widely appreciated. However, the complexity of these interactions, and the significant impact of fungal, host and microbiota variability upon disease severity and outcome, are less well understood. Therefore, we summarise the features of the fungus that promote infection, and how genetic variation between clinical isolates influences pathogenicity. We discuss antifungal immunity, how this differs between mucosae, and how individual variation influences a person's susceptibility to infection. Also, we describe factors that influence the composition of gut, oral and vaginal microbiotas, and how these affect fungal colonisation and antifungal immunity. We argue that a detailed understanding of these variables, which underlie fungal-host-microbiota interactions, will present opportunities for directed antifungal therapies that benefit vulnerable patients.
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Affiliation(s)
- Christophe d'Enfert
- Unité Biologie et Pathogénicité Fongiques, Département de Mycologie, Institut Pasteur, USC 2019 INRA, 25, rue du Docteur Roux, 75015 Paris, France
| | - Ann-Kristin Kaune
- Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Ashgrove Road West, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Leovigildo-Rey Alaban
- BIOASTER Microbiology Technology Institute, 40 avenue Tony Garnier, 69007 Lyon, France
- Université de Paris, Sorbonne Paris Cité, 25, rue du Docteur Roux, 75015 Paris, France
| | - Sayoni Chakraborty
- Microbial Immunology Research Group, Emmy Noether Junior Research Group Adaptive Pathogenicity Strategies, and the Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute, Beutenbergstraße 11a, 07745 Jena, Germany
- Institute of Microbiology, Friedrich Schiller University, Neugasse 25, 07743 Jena, Germany
| | - Nathaniel Cole
- Gut Microbiology Group, Rowett Institute, University of Aberdeen, Ashgrove Road West, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Margot Delavy
- Unité Biologie et Pathogénicité Fongiques, Département de Mycologie, Institut Pasteur, USC 2019 INRA, 25, rue du Docteur Roux, 75015 Paris, France
- Université de Paris, Sorbonne Paris Cité, 25, rue du Docteur Roux, 75015 Paris, France
| | - Daria Kosmala
- Unité Biologie et Pathogénicité Fongiques, Département de Mycologie, Institut Pasteur, USC 2019 INRA, 25, rue du Docteur Roux, 75015 Paris, France
- Université de Paris, Sorbonne Paris Cité, 25, rue du Docteur Roux, 75015 Paris, France
| | - Benoît Marsaux
- ProDigest BV, Technologiepark 94, B-9052 Gent, Belgium
- Center for Microbial Ecology and Technology (CMET), Department of Biotechnology, Faculty of Bioscience Engineering, Ghent University, Coupure Links, 9000 Ghent, Belgium
| | - Ricardo Fróis-Martins
- Immunology Section, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 266a, Zurich 8057, Switzerland
- Institute of Experimental Immunology, University of Zurich, Winterthurerstrasse 190, Zürich 8057, Switzerland
| | - Moran Morelli
- Mimetas, Biopartner Building 2, J.H. Oortweg 19, 2333 CH Leiden, The Netherlands
| | - Diletta Rosati
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein 28, 6525 GA Nijmegen, The Netherlands
| | - Marisa Valentine
- Microbial Immunology Research Group, Emmy Noether Junior Research Group Adaptive Pathogenicity Strategies, and the Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute, Beutenbergstraße 11a, 07745 Jena, Germany
| | - Zixuan Xie
- Gut Microbiome Group, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Passeig Vall d'Hebron 119–129, 08035 Barcelona, Spain
| | - Yoan Emritloll
- Unité Biologie et Pathogénicité Fongiques, Département de Mycologie, Institut Pasteur, USC 2019 INRA, 25, rue du Docteur Roux, 75015 Paris, France
| | - Peter A Warn
- Magic Bullet Consulting, Biddlecombe House, Ugbrook, Chudleigh Devon, TQ130AD, UK
| | - Frédéric Bequet
- BIOASTER Microbiology Technology Institute, 40 avenue Tony Garnier, 69007 Lyon, France
| | - Marie-Elisabeth Bougnoux
- Unité Biologie et Pathogénicité Fongiques, Département de Mycologie, Institut Pasteur, USC 2019 INRA, 25, rue du Docteur Roux, 75015 Paris, France
| | - Stephanie Bornes
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMRF0545, 20 Côte de Reyne, 15000 Aurillac, France
| | - Mark S Gresnigt
- Microbial Immunology Research Group, Emmy Noether Junior Research Group Adaptive Pathogenicity Strategies, and the Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute, Beutenbergstraße 11a, 07745 Jena, Germany
| | - Bernhard Hube
- Microbial Immunology Research Group, Emmy Noether Junior Research Group Adaptive Pathogenicity Strategies, and the Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute, Beutenbergstraße 11a, 07745 Jena, Germany
| | - Ilse D Jacobsen
- Microbial Immunology Research Group, Emmy Noether Junior Research Group Adaptive Pathogenicity Strategies, and the Department of Microbial Pathogenicity Mechanisms, Leibniz Institute for Natural Product Research and Infection Biology – Hans Knöll Institute, Beutenbergstraße 11a, 07745 Jena, Germany
| | - Mélanie Legrand
- Unité Biologie et Pathogénicité Fongiques, Département de Mycologie, Institut Pasteur, USC 2019 INRA, 25, rue du Docteur Roux, 75015 Paris, France
| | - Salomé Leibundgut-Landmann
- Immunology Section, Vetsuisse Faculty, University of Zurich, Winterthurerstrasse 266a, Zurich 8057, Switzerland
- Institute of Experimental Immunology, University of Zurich, Winterthurerstrasse 190, Zürich 8057, Switzerland
| | - Chaysavanh Manichanh
- Gut Microbiome Group, Vall d'Hebron Institut de Recerca (VHIR), Vall d'Hebron Hospital Universitari, Vall d'Hebron Barcelona Hospital Campus, Passeig Vall d'Hebron 119–129, 08035 Barcelona, Spain
| | - Carol A Munro
- Aberdeen Fungal Group, Institute of Medical Sciences, University of Aberdeen, Ashgrove Road West, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Geert Grooteplein 28, 6525 GA Nijmegen, The Netherlands
| | - Karla Queiroz
- Mimetas, Biopartner Building 2, J.H. Oortweg 19, 2333 CH Leiden, The Netherlands
| | - Karine Roget
- NEXBIOME Therapeutics, 22 allée Alan Turing, 63000 Clermont-Ferrand, France
| | - Vincent Thomas
- BIOASTER Microbiology Technology Institute, 40 avenue Tony Garnier, 69007 Lyon, France
| | - Claudia Thoral
- NEXBIOME Therapeutics, 22 allée Alan Turing, 63000 Clermont-Ferrand, France
| | | | - Alan W Walker
- Gut Microbiology Group, Rowett Institute, University of Aberdeen, Ashgrove Road West, Foresterhill, Aberdeen AB25 2ZD, UK
| | - Alistair J P Brown
- MRC Centre for Medical Mycology, Department of Biosciences, University of Exeter, Geoffrey Pope Building, Stocker Road, Exeter EX4 4QD, UK
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247
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Velkoski J, Grimaldi F, DI Meo L, Mion F, Pravisani R, Marino M, Calandra S, Cherchi V, Terrosu G. Immunonutrition in elective colorectal surgery and early inflammatory response. Minerva Surg 2021; 76:407-414. [PMID: 33890440 DOI: 10.23736/s2724-5691.21.08619-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Immunonutrition has gained increasing interest over years, enough to be recommended in several international guidelines and to be included in the ERAS protocol for colorectal surgery. Although clinical advantages have been proved for malnourished cancer-affected patients, its role is more controversial in other settings. We have evaluated the impact of immunonutrition in major colorectal elective surgery for benign and malignant diseases, regardless of the preoperative nutritional status. METHODS We conducted a single center retrospective analysis of a database of patients who underwent elective major colon-rectal surgery for benign and malignant diseases between January 2018 and February 2020. In January 2019 we started a protocol to define which patients should receive preoperative immunonutrition, regardless of their nutritional status. We compared early postoperative outcomes and laboratory data of this group (IMN) to those of patients who met all the characteristics to be included in the protocol, but who did not receive immunonutrition (CTRL). RESULTS The IMN group showed significantly lower total leukocytes and neutrophils values and a lower pathological leukocytosis rate on 1st postoperative day compared to the CTRL group (p=0.004). Although differences in early postoperative clinical outcomes were not significant, patients belonging to the IMN group needed less postoperative antibiotic treatment (p = 0.047). CONCLUSIONS Immunonutrition could affect granulocytopoiesis and neutrophils recruitment in damaged tissues. This could lead to better and faster tissue healing and, consequently, to a reduction in postoperative complications even in normo-nourished patients. The lower need for antibiotic treatment could reflect a reduced susceptibility to postoperative infections.
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Affiliation(s)
- Jaqueline Velkoski
- General Surgery Clinic and Liver Transplant Center, University Hospital of Udine, Udine, Italy -
| | - Franco Grimaldi
- Endocrinology, Metabolism and Nutrition Unit, University Hospital of Udine, Udine, Italy
| | - Laura DI Meo
- Endocrinology, Metabolism and Nutrition Unit, University Hospital of Udine, Udine, Italy
| | - Francesca Mion
- Department of Medicine, Immunology Unit, University of Udine, Udine, Italy
| | | | - Marco Marino
- Gastroenterology and GI Endoscopy Unit, University-Hospital of Udine, Udine, Italy
| | - Sergio Calandra
- General Surgery Clinic and Liver Transplant Center, University Hospital of Udine, Udine, Italy
| | - Vittorio Cherchi
- General Surgery Clinic and Liver Transplant Center, University Hospital of Udine, Udine, Italy
| | - Giovanni Terrosu
- General Surgery Clinic and Liver Transplant Center, University Hospital of Udine, Udine, Italy
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248
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Zivkovic S, Ayazi M, Hammel G, Ren Y. For Better or for Worse: A Look Into Neutrophils in Traumatic Spinal Cord Injury. Front Cell Neurosci 2021; 15:648076. [PMID: 33967695 PMCID: PMC8100532 DOI: 10.3389/fncel.2021.648076] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 03/08/2021] [Indexed: 12/23/2022] Open
Abstract
Neutrophils are short-lived cells of the innate immune system and the first line of defense at the site of an infection and tissue injury. Pattern recognition receptors on neutrophils recognize pathogen-associated molecular patterns or danger-associated molecular patterns, which recruit them to the destined site. Neutrophils are professional phagocytes with efficient granular constituents that aid in the neutralization of pathogens. In addition to phagocytosis and degranulation, neutrophils are proficient in creating neutrophil extracellular traps (NETs) that immobilize pathogens to prevent their spread. Because of the cytotoxicity of the associated granular proteins within NETs, the microbes can be directly killed once immobilized by the NETs. The role of neutrophils in infection is well studied; however, there is less emphasis placed on the role of neutrophils in tissue injury, such as traumatic spinal cord injury. Upon the initial mechanical injury, the innate immune system is activated in response to the molecules produced by the resident cells of the injured spinal cord initiating the inflammatory cascade. This review provides an overview of the essential role of neutrophils and explores the contribution of neutrophils to the pathologic changes in the injured spinal cord.
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Affiliation(s)
- Sandra Zivkovic
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, United States
| | - Maryam Ayazi
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, United States
| | - Grace Hammel
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, United States
| | - Yi Ren
- Department of Biomedical Sciences, Florida State University College of Medicine, Tallahassee, FL, United States
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249
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Nair AP, D'Souza S, Shetty R, Ahuja P, Kundu G, Khamar P, Dadachanji Z, Paritekar P, Patel P, Dickman MM, Nuijts RM, Mohan RR, Ghosh A, Sethu S. Altered ocular surface immune cell profile in patients with dry eye disease. Ocul Surf 2021; 21:96-106. [PMID: 33862224 DOI: 10.1016/j.jtos.2021.04.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/06/2021] [Accepted: 04/06/2021] [Indexed: 12/16/2022]
Abstract
PURPOSE Aberrant inflammation and immune dysregulation are known pathogenic contributors in dry eye disease (DED). Aim of the study was to determine the proportions of immune cell subsets on the ocular surface (OS) of DED patients. METHODS 15 healthy controls (22 eyes) and 48 DED subjects (36 eyes with evaporative DED - EDED; 60 eyes with aqueous deficient DED - ADED) were included in the study. Tear break up time (TBUT), Schirmer's test 1 (ST1), corneal staining (CS) and ocular surface disease index (OSDI) scoring were recorded. OS wash was used to collect immune cells on the OS of study subjects. The cells immunophenotyped using flow cytometry include leukocytes, neutrophils, macrophages, natural killer-NK cells and T cell subsets (CD4; CD8; double positive-DP; gamma delta-γδ and NK T cells). RESULTS Significantly higher proportions of leukocytes, neutrophils, CD4 T cells, CD8 T cells, DP T cells and CD4/CD8 T cells ratio were observed in EDED and/or ADED patients. Significantly higher proportions of neutrophils and lower proportions of NK cells were observed in ADED subjects with corneal staining compared to those without and controls. Neutrophils/NK cells ratio was significantly higher in EDED and ADED subjects compared to controls. Correlation analysis revealed pathological relationships between proportions of leukocytes, neutrophils, CD4 T cells and Neutrophil/NK cells ratio with DED clinical parameters. CONCLUSION OS immune cell subset proportion changes in DED patients were associated with DED types and severity. The data suggests the potential for a new generation of therapies targeting immune cells on the ocular surface.
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Affiliation(s)
- Archana Padmanabhan Nair
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, India; Manipal Academy of Higher Education, Manipal, India
| | - Sharon D'Souza
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Prerna Ahuja
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Gairik Kundu
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Pooja Khamar
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Zelda Dadachanji
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Prajakta Paritekar
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Pavitra Patel
- Department of Cornea and Refractive Surgery, Narayana Nethralaya, Bangalore, India
| | - Mor M Dickman
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands; MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, the Netherlands
| | - Rudy Mma Nuijts
- University Eye Clinic Maastricht, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Rajiv R Mohan
- Department of Veterinary Medicine and Surgery, University of Missouri, Columbia, MO, USA; Mason Eye Institute, School of Medicine, University of Missouri, Columbia, MO, USA; Harry S Truman Veterans' Memorial Hospital, Columbia, MO, USA.
| | - Arkasubhra Ghosh
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, India; Singapore Eye Research Institute, Singapore.
| | - Swaminathan Sethu
- GROW Research Laboratory, Narayana Nethralaya Foundation, Bangalore, India.
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Absence of Cold-Inducible RNA-Binding Protein (CIRP) Promotes Angiogenesis and Regeneration of Ischemic Tissue by Inducing M2-Like Macrophage Polarization. Biomedicines 2021; 9:biomedicines9040395. [PMID: 33916904 PMCID: PMC8067566 DOI: 10.3390/biomedicines9040395] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/31/2021] [Accepted: 04/04/2021] [Indexed: 12/19/2022] Open
Abstract
Cold-inducible RNA-binding protein (CIRP) is an intracellular RNA-chaperone and extracellular promoter of inflammation, which is increasingly expressed and released under conditions of hypoxia and cold stress. The functional relevance of CIRP for angiogenesis and regeneration of ischemic muscle tissue has never been investigated and is the topic of the present study. We investigated the role of CIRP employing CIRP deficient mice along with a hindlimb model of ischemia-induced angiogenesis. 1 and 7 days after femoral artery ligation or sham operation, gastrocnemius muscles of CIRP-deficient and wildtype mice were isolated and processed for (immuno-) histological analyses. CIRP deficient mice showed decreased ischemic tissue damage as evidenced by Hematoxylin and Eosin staining, whereas angiogenesis was enhanced as demonstrated by increased capillary/muscle fiber ratio and number of proliferating endothelial (CD31+/BrdU+) cells on day 7 after surgery. Moreover, CIRP deficiency resulted in a reduction of total leukocyte count (CD45+), neutrophils (myeloperoxidase, MPO+), neutrophil extracellular traps (NETs) (MPO+/CitH3+), and inflammatory M1-like polarized macrophages (CD68+/MRC1-), whereas the number of tissue regenerating M2-like polarized macrophages (CD68+/MRC1-) was increased in ischemic tissue samples. In summary, we show that the absence of CIRP ameliorates angiogenesis and regeneration of ischemic muscle tissue, most likely by influencing macrophage polarization in direction to regenerative M2-like macrophages.
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