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Trujillo-Cirilo L, Weiss-Steider B, Vargas-Angeles CA, Corona-Ortega MT, Rangel-Corona R. Immune microenvironment of cervical cancer and the role of IL-2 in tumor promotion. Cytokine 2023; 170:156334. [PMID: 37598478 DOI: 10.1016/j.cyto.2023.156334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 07/06/2023] [Accepted: 08/11/2023] [Indexed: 08/22/2023]
Abstract
The tumor microenvironment (TME) is a heterogeneous mixture of resident and tumor cells that maintain close communication through their secretion products. The composition of the TME is dynamic and complex among the different types of cancer, where the immune cells play a relevant role in the elimination of tumor cells, however, under certain circumstances they contribute to tumor development. In cervical cancer (CC) the human papilloma virus (HPV) shapes the microenvironment in order to mediate persistent infections that favors transformation and tumor development. Interleukin-2 (IL-2) is an important TME cytokine that induces CD8+ effector T cells and NKs to eliminate tumor cells, however, IL-2 can also suppress the immune response through Treg cells. Recent studies have shown that CC cells express the IL-2 receptor (IL-2R), that are induced to proliferate at low concentrations of exogenous IL-2 through alterations in the JAK/STAT pathway. This review provides an overview of the main immune cells that make up the TME in CC, as well as the participation of IL-2 in the tumor promotion. Finally, it is proposed that the low density of IL-2 produced by immunocompetent cells is used by tumor cells through its IL-2R as a mechanism to proliferate simultaneously depleting this molecule in order to evade immune response.
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Affiliation(s)
- Leonardo Trujillo-Cirilo
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico.
| | - Benny Weiss-Steider
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
| | - Carlos Adrian Vargas-Angeles
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
| | - Maria Teresa Corona-Ortega
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
| | - Rosalva Rangel-Corona
- Laboratory of Cellular Oncology, Research Unit Cell Differentiation and Cancer, L-4 P.B. FES Zaragoza, National University of Mexico, Av., Guelatao No. 66 Col. Ejercito de Oriente, Iztapalapa, C.P. 09230 Mexico City, Mexico
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Liu WS, Wu LL, Chen CM, Zheng H, Gao J, Lu ZM, Li M. Lipid-hybrid cell-derived biomimetic functional materials: A state-of-the-art multifunctional weapon against tumors. Mater Today Bio 2023; 22:100751. [PMID: 37636983 PMCID: PMC10448342 DOI: 10.1016/j.mtbio.2023.100751] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/25/2023] [Accepted: 07/27/2023] [Indexed: 08/29/2023] Open
Abstract
Tumors are among the leading causes of death worldwide. Cell-derived biomimetic functional materials have shown great promise in the treatment of tumors. These materials are derived from cell membranes, extracellular vesicles and bacterial outer membrane vesicles and may evade immune recognition, improve drug targeting and activate antitumor immunity. However, their use is limited owing to their low drug-loading capacity and complex preparation methods. Liposomes are artificial bionic membranes that have high drug-loading capacity and can be prepared and modified easily. Although they can overcome the disadvantages of cell-derived biomimetic functional materials, they lack natural active targeting ability. Lipids can be hybridized with cell membranes, extracellular vesicles or bacterial outer membrane vesicles to form lipid-hybrid cell-derived biomimetic functional materials. These materials negate the disadvantages of both liposomes and cell-derived components and represent a promising delivery platform in the treatment of tumors. This review focuses on the design strategies, applications and mechanisms of action of lipid-hybrid cell-derived biomimetic functional materials and summarizes the prospects of their further development and the challenges associated with it.
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Affiliation(s)
- Wen-Shang Liu
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, Shanghai, 200011, China
| | - Li-Li Wu
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Cui-Min Chen
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Hao Zheng
- Department of Gastrointestinal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Jie Gao
- Changhai Clinical Research Unit, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Zheng-Mao Lu
- Department of Gastrointestinal Surgery, Shanghai Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Meng Li
- Department of Dermatology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, Shanghai, 200011, China
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103
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Ariño S, Aguilar-Bravo B, Coll M, Lee WY, Peiseler M, Cantallops-Vilà P, Sererols-Viñas L, Martínez-García de la Torre RA, Martínez-Sánchez C, Pedragosa J, Zanatto L, Gratacós-Ginès J, Pose E, Blaya D, Almodóvar X, Fernández-Fernández M, Ruiz-Blázquez P, Lozano JJ, Affo S, Planas AM, Ginès P, Moles A, Kubes P, Sancho-Bru P. Ductular reaction-associated neutrophils promote biliary epithelium proliferation in chronic liver disease. J Hepatol 2023; 79:1025-1036. [PMID: 37348790 PMCID: PMC10585421 DOI: 10.1016/j.jhep.2023.05.045] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 05/22/2023] [Accepted: 05/30/2023] [Indexed: 06/24/2023]
Abstract
BACKGROUND & AIMS Ductular reaction expansion is associated with poor prognosis in patients with advanced liver disease. However, the mechanisms promoting biliary cell proliferation are largely unknown. Here, we identify neutrophils as drivers of biliary cell proliferation and the defective wound-healing response. METHODS The intrahepatic localization of neutrophils was evaluated in patients with chronic liver disease. Neutrophil dynamics were analyzed by intravital microscopy and neutrophil-labeling assays in DDC-treated mice. Neutrophil depletion or inhibition of recruitment was achieved using a Ly6g antibody or a CXCR1/2 inhibitor, respectively. Mice deficient in PAD4 (peptidyl arginine deiminase 4) and ELANE/NE (neutrophil elastase) were used to investigate the mechanisms underlying ductular reaction expansion. RESULTS In this study we describe a population of ductular reaction-associated neutrophils (DRANs), which are in direct contact with biliary epithelial cells in chronic liver diseases and whose numbers increased in parallel with disease progression. We show that DRANs are immobilized at the site of ductular reaction for a prolonged period of time. In addition, liver neutrophils display a unique phenotypic and transcriptomic profile, showing a decreased phagocytic capacity and increased oxidative burst. Depletion of neutrophils or inhibition of their recruitment reduces DRANs and the expansion of ductular reaction, while mitigating liver fibrosis and angiogenesis. Mechanistically, neutrophils deficient in PAD4 and ELANE abrogate neutrophil-induced biliary cell proliferation, thus indicating the role of neutrophil extracellular traps and elastase release in ductular reaction expansion. CONCLUSIONS Overall, our study reveals the accumulation of DRANs as a hallmark of advanced liver disease and a potential therapeutic target to mitigate ductular reaction and the maladaptive wound-healing response. IMPACT AND IMPLICATIONS Our results indicate that neutrophils are highly plastic and can have an extended lifespan. Moreover, we identify a new role of neutrophils as triggers of expansion of the biliary epithelium. Overall, the results of this study indicate that ductular reaction-associated neutrophils (or DRANs) are new players in the maladaptive tissue-healing response in chronic liver injury and may be a potential target for therapeutic interventions to reduce ductular reaction expansion and promote tissue repair in advanced liver disease.
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Affiliation(s)
- Silvia Ariño
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Beatriz Aguilar-Bravo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Mar Coll
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Medicine Department, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain.
| | - Woo-Yong Lee
- Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Moritz Peiseler
- Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Paula Cantallops-Vilà
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Laura Sererols-Viñas
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | | | - Celia Martínez-Sánchez
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Jordi Pedragosa
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Neuroscience and Experimental Therapeutics, Institute of Biomedical Research of Barcelona, Spanish National Research Council (CSIC), Barcelona, Spain
| | - Laura Zanatto
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Jordi Gratacós-Ginès
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain; Liver Unit, Hospital Clínic, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Elisa Pose
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Medicine Department, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain; Liver Unit, Hospital Clínic, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Delia Blaya
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Xènia Almodóvar
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - María Fernández-Fernández
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain; Department of Experimental Pathology, Institute of Biomedical Research of Barcelona, Spanish National Research Council (CSIC), Barcelona, Spain
| | - Paloma Ruiz-Blázquez
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain; Department of Experimental Pathology, Institute of Biomedical Research of Barcelona, Spanish National Research Council (CSIC), Barcelona, Spain
| | - Juan José Lozano
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain
| | - Silvia Affo
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
| | - Anna M Planas
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Department of Neuroscience and Experimental Therapeutics, Institute of Biomedical Research of Barcelona, Spanish National Research Council (CSIC), Barcelona, Spain
| | - Pere Ginès
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Medicine Department, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain; Liver Unit, Hospital Clínic, Faculty of Medicine, University of Barcelona, Barcelona, Spain
| | - Anna Moles
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain; Department of Experimental Pathology, Institute of Biomedical Research of Barcelona, Spanish National Research Council (CSIC), Barcelona, Spain
| | - Paul Kubes
- Snyder Institute for Chronic Diseases, University of Calgary, Calgary, AB, Canada
| | - Pau Sancho-Bru
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain; Medicine Department, Faculty of Medicine, University of Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Barcelona, Spain.
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Stangl-Kremser J, Sun M, Ho B, Thomas J, Nauseef JT, Osborne JR, Molina A, Sternberg CN, Nanus DM, Bander NH, Tagawa S. Prognostic value of neutrophil-to-lymphocyte ratio in patients with metastatic castration-resistant prostate cancer receiving prostate-specific membrane antigen targeted radionuclide therapy. Prostate 2023; 83:1351-1357. [PMID: 37424145 DOI: 10.1002/pros.24597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/23/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Neutrophil count:lymphocyte count ratio (NLR) may be a prognostic factor for men with advanced prostate cancer. We hypothesized that it is associated with prostate-specific antigen (PSA) response and survival in men treated with prostate-specific membrane antigen (PSMA)-targeted radionuclide therapy (TRT). METHODS Data of 180 men with metastatic castration-resistant prostate cancer (mCRPC) who were treated in sequential prospective radionuclide clinical trials from 2002 to 2021 (utilizing 177Lu-J591, 90Y-J591, 177Lu-PSMA-617, or 225Ac-J591) were retrospectively analyzed. We used a logistic regression to determine the association between NLR and ≥50% PSA decline (PSA50) and a Cox proportional hazards model to investigate the association between NLR and overall survival (OS). RESULTS A total of 94 subjects (52.2%) received 177Lu-J591, 51 (28.3%) 177Lu-PSMA-617, 28 (15.6%) 225Ac-J591, and 7 (3.9%) 90Y-J591. The median NLR of 3.75 was used as cut-off (low vs. high NLR; n = 90, respectively). On univariate analysis, NLR was not associated with PSA50 (HR 1.08; 95% confidence interval [CI] 0.99-1.17, p = 0.067). However, it was associated with worse OS (hazard ratio [HR] 1.06, 95% CI 1.02-1.09, p = 0.002), also after controlling for circulating tumor cell count and cancer and leukemia group B risk group (HR 1.05; 95% CI 1.003-1.11, p = 0.036). Men with high NLR were at a higher hazard of death from all causes (HR 1.43, 95% CI 1.05-1.94, p = 0.024). CONCLUSIONS NLR provides prognostic information in the setting of patients with mCRPC receiving treatment with PSMA-TRT.
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Affiliation(s)
| | - Michael Sun
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
| | - Benedict Ho
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
| | - Joseph Thomas
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
| | - Jones T Nauseef
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Joseph R Osborne
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
- Department of Radiology, Division of Molecular Imaging and Therapeutics, Weill Cornell Medicine, New York, New York, USA
| | - Ana Molina
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
| | - Cora N Sternberg
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
- Englander Institute for Precision Medicine, Weill Cornell Medicine, New York, New York, USA
| | - David M Nanus
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Neil H Bander
- Department of Urology, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Scott Tagawa
- Department of Medicine, Division of Hematology and Medical Oncology, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
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105
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Liu D, Xiao M, Zhou J, Wang P, Peng J, Mao W, Hu Y, Liu Y, Yin J, Ke L, Li W. PFKFB3 promotes sepsis-induced acute lung injury by enhancing NET formation by CXCR4 hi neutrophils. Int Immunopharmacol 2023; 123:110737. [PMID: 37543012 DOI: 10.1016/j.intimp.2023.110737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/25/2023] [Accepted: 07/28/2023] [Indexed: 08/07/2023]
Abstract
CXCR4hi neutrophils, which are a subset of neutrophils with high CXCR4 expression, are important contributors to sepsis-induced acute lung injury (ALI). PFKFB3, a key glycolysis gene, plays an essential role in neutrophil inflammatory activation. However, the specific involvement of PFKFB3 in sepsis-induced ALI remains unclear. Here, we observed that PFKFB3 was upregulated in CXCR4hi neutrophils and facilitated sepsis-induced ALI. Mechanistically, we observed that PFKFB3 promoted sepsis-induced ALI by enhancing neutrophil extracellular trap (NET) formation by CXCR4hi neutrophils. Further study indicated that PFKFB3 promoted NET formation by upregulating glycolytic metabolism in CXCR4hi neutrophils. In summary, our study uncovered a new mechanism by which CXCR4hi neutrophils trigger sepsis-induced ALI by promoting NET formation, which is supported by PFKFB3-mediated glycolytic metabolism.
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Affiliation(s)
- Dadong Liu
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Min Xiao
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Zhou
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Peng Wang
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jingwen Peng
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Wenjian Mao
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yuepeng Hu
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China
| | - Yuxiu Liu
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiangtao Yin
- Department of Critical Care Medicine, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China; Digestive Disease Institute, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China.
| | - Lu Ke
- Center of Severe Acute Pancreatitis (CSAP), Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, China.
| | - Weiqin Li
- Department of Critical Care Medicine, Jinling Hospital, Medical School of Nanjing Medical University, Nanjing, Jiangsu, China.
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106
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Wu H, Guo C, Liu Z, Cai J, Wang C, Yi H, Sanyal A, Puri P, Zhou H, Wang XY. Neutrophils exacerbate acetaminophen-induced liver injury by producing cytotoxic interferon-γ. Int Immunopharmacol 2023; 123:110734. [PMID: 37541108 PMCID: PMC10603570 DOI: 10.1016/j.intimp.2023.110734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/27/2023] [Accepted: 07/27/2023] [Indexed: 08/06/2023]
Abstract
BACKGROUND Drug (e.g., acetaminophen, APAP)-associated hepatotoxicity is the major cause of acute liver failure. Emerging evidence shows that initial tissue damage caused by APAP triggers molecular and cellular immune responses, which can modulate the severity of hepatoxicity. The pro-inflammatory and cytotoxic cytokine interferon (IFN)-γ has been reported as a key molecule contributing to APAP-induced liver injury (AILI). However, its cellular source remains undetermined. RESULTS In the current study, we show that elevation of serum IFN-γ in patients with drug hepatotoxicity correlates with disease severity. Neutralization of IFN-γ in a mouse model of AILI effectively reduces hepatotoxicity. Strikingly, we reveal that IFN-γ is expressed primarily by hepatic neutrophils, not by conventional immune cells with known IFN-γ-producing capability, e.g., CD8+ T cells, CD4+ T cells, natural killer cells, or natural killer T cells. Upon encountering APAP-injured hepatocytes, neutrophils secrete cytotoxic IFN-γ further causing cell stress and damage, which can be abrogated in the presence of blocking antibodies for IFN-γ or IFN-γreceptor. Furthermore, removal of neutrophils in vivo substantially decreases hepatic IFN-γ levels concomitantly with reduced APAP hepatotoxicity, whereas adoptive transfer of IFN-γ-producing neutrophils confers IFN-γ-/- mice susceptibility to APAP administration. CONCLUSIONS Our findings uncover a novel mechanism of neutrophil action in promoting AILI and provide new insights into immune modulation of the disease pathogenesis.
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Affiliation(s)
- Hao Wu
- Department of Nephrology, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Chunqing Guo
- Department of Human & Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA; Institute of Molecular Medicine, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA.
| | - Zheng Liu
- Department of Human & Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA
| | - Jinyang Cai
- Department of Human & Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA
| | - Chong Wang
- Nephrology Department, First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Huanfa Yi
- Central Laboratory, The First Hospital of Jilin University, Changchun, Jilin 130021, China; Key Laboratory of Organ Regeneration and Transplantation, Ministry of Education, Changchun, Jilin 130021, China
| | - Arun Sanyal
- Division of Gastroenterology, Department of Internal Medicine, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA
| | - Puneet Puri
- Richmond VA Medical Center, Richmond 23249, VA, USA
| | - Huiping Zhou
- Richmond VA Medical Center, Richmond 23249, VA, USA; Department of Microbiology and Immunology, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA
| | - Xiang-Yang Wang
- Department of Human & Molecular Genetics, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA; Institute of Molecular Medicine, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, VA 23298, USA; Richmond VA Medical Center, Richmond 23249, VA, USA.
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Perumal N, White B, Sanchez-Valdez F, Tarleton RL. cGAS-STING Pathway Activation during Trypanosoma cruzi Infection Leads to Tissue-Dependent Parasite Control. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1123-1133. [PMID: 37603014 PMCID: PMC10783805 DOI: 10.4049/jimmunol.2300373] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/31/2023] [Indexed: 08/22/2023]
Abstract
Host cell invasion by Trypanosoma cruzi is a markedly silent process, with limited host transcriptional changes indicative of innate immune recognition, except for a modest type I IFN (IFN-I) response. In this study, we show that T. cruzi-induced IFN-β production was nearly abolished in primary murine cGAS-/- or stimulator of IFN genes (STING)-deficient (STINGGt) macrophages and fibroblasts. T. cruzi infection did not impact the ability of IFN-regulatory factor reporter macrophages to respond to classical cGAS-STING agonists, indicating that the limited IFN-β induction is not due to active parasite suppression. cGAS-/-, STINGGt, and IFN-α/β receptor-/- (IFNAR-/-) macrophages infected with T. cruzi yielded significantly higher numbers of amastigotes compared with wild-type macrophages; however, the impact of the STING pathway during infection in vivo is more complex. Despite an initial increase in parasite growth, STINGGt and IFNAR-/- mice ultimately had lower parasite burden in footpads as compared with wild-type mice, demonstrating a role for IFN-I expression in potentiating parasite growth at the infection site. STING pathway activation had little impact on parasite levels in the skeletal muscle; however, in the heart, cGAS-/- and STINGGt mice, but not IFNAR-/- mice, accumulated higher acute parasite loads, suggesting a protective role of STING sensing of T. cruzi in this organ that was independent of IFN-I. Together, these results demonstrate that host cGAS-STING senses T. cruzi infection, enhancing parasite growth at the site of entry, and contributes to acute-phase parasite restriction in the heart, a major site of tissue damage in chronic T. cruzi infection.
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Affiliation(s)
- Natasha Perumal
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA
- Department of Cellular Biology, University of Georgia, Athens, GA
| | - Brooke White
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA
| | | | - Rick L Tarleton
- Center for Tropical and Emerging Global Diseases, University of Georgia, Athens, GA
- Department of Cellular Biology, University of Georgia, Athens, GA
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108
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Munteanu F. A Local Analysis of a Mathematical Pattern for Interactions between the Human Immune System and a Pathogenic Agent. ENTROPY (BASEL, SWITZERLAND) 2023; 25:1392. [PMID: 37895513 PMCID: PMC10606378 DOI: 10.3390/e25101392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 09/26/2023] [Accepted: 09/27/2023] [Indexed: 10/29/2023]
Abstract
In the present study, we introduce a four-dimensional deterministic mathematical pattern in order to study the interactions between the human immune system and a virus. The model is based on a system with four first-order ordinary differential equations, and the main aim of the paper is to perform a mathematical analysis of the local behavior of the associated dynamical system using the tools of the qualitative theory of dynamical systems. Moreover, two types of patterns with controls were introduced; consequently, some very interesting theoretical conclusions with medical relevance were obtained.
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Affiliation(s)
- Florian Munteanu
- Department of Applied Mathematics, University of Craiova, Al. I. Cuza, 13, 200585 Craiova, Romania
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Fahimi F, Alam MJ, Ang C, Adhyatma GP, Xie L, Mackay CR, Robert R. Human CXCR1 knock-in mice infer functional expression of a murine ortholog. J Leukoc Biol 2023; 114:373-380. [PMID: 37478375 DOI: 10.1093/jleuko/qiad085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 06/05/2023] [Accepted: 06/26/2023] [Indexed: 07/23/2023] Open
Abstract
Targeting CXCR1 and CXCR2 chemokine receptors to block neutrophil migration to sites of inflammation is a promising therapeutic approach for various inflammatory and autoimmune diseases. However, assessing the translational potential of such therapies using mouse models is challenging due to the unclear expression of CXCR1 at the protein level. Although CXCR2 has been well characterized in both mice and humans, the protein-level expression of CXCR1 in mice (mCXCR1) remains controversial. To address this issue, we generated a novel human CXCR1 knock-in (hCXCR1 KI) mouse model in which the transgene is under the control of the native mouse promoter and regulatory elements. Using an anti-human CXCR1 monoclonal antibody (anti-hCXCR1 monoclonal antibody), we found that hCXCR1 was highly expressed on neutrophils in the hCXCR1 KI mice, comparable to levels observed in human neutrophils. This successful expression of hCXCR1 in this mouse model suggests that functional mCXCR1 likely exists. To investigate the functional role of CXCR1, we investigated how antagonizing this receptor using anti-hCXCR1 monoclonal antibody in the arthritis model would affect disease outcomes. Antibody treatment significantly alleviated all signs of joint inflammation. In summary, our newly generated hCXCR1 KI transgenic mice provide a valuable tool to investigate the therapeutic efficacy of small molecules or monoclonal antibodies that antagonize this receptor in neutrophil-mediated pathologies.
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Affiliation(s)
- Farnaz Fahimi
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Md Jahangir Alam
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Caroline Ang
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Galih Prakasa Adhyatma
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Liang Xie
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Charles R Mackay
- Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Remy Robert
- Department of Physiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
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110
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Hu T, Chen X. Role of neutrophil extracellular trap and immune infiltration in atherosclerotic plaque instability: Novel insight from bioinformatics analysis and machine learning. Medicine (Baltimore) 2023; 102:e34918. [PMID: 37747003 PMCID: PMC10519497 DOI: 10.1097/md.0000000000034918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/11/2023] [Accepted: 08/03/2023] [Indexed: 09/26/2023] Open
Abstract
The instability of atherosclerotic plaques increases the risk of acute coronary syndrome. Neutrophil extracellular traps (NETs), mesh-like complexes consisting of extracellular DNA adorned with various protein substances, have been recently discovered to play an essential role in atherosclerotic plaque formation and development. This study aimed to investigate novel diagnostic biomarkers that can identify unstable plaques for early distinction and prevention of plaque erosion or disruption. Differential expression analysis was used to identify the differentially expressed NET-related genes, and Gene Ontology and Kyoto Encyclopedia of Genes and Genomes analyses were performed. We filtered the characteristic genes using machine learning and estimated diagnostic efficacy using receiver operating characteristic curves. Immune infiltration was detected using single-sample gene set enrichment analysis and the biological signaling pathways involved in characteristic genes utilizing gene set enrichment analysis were explored. Finally, miRNAs- and transcription factors-target genes networks were established. We identified 8 differentially expressed NET-related genes primarily involved in immune-related pathways. Four were identified as capable of distinguishing unstable plaques. More immune cells infiltrated unstable plaques than stable plaques, and these cells were predominantly positively related to characteristic genes. These 4 diagnostic genes are involved in immune responses and the modulation of smooth muscle contractility. Several miRNAs and transcription factors were predicted as upstream regulatory factors, providing further information on the identification and prevention of atherosclerotic plaques rupture. We identified several promising NET-related genes (AQP9, C5AR1, FPR3, and SIGLEC9) and immune cell subsets that may identify unstable atherosclerotic plaques at an early stage and prevent various complications of plaque disruption.
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Affiliation(s)
- Tingting Hu
- Health Science Center, Ningbo University, Ningbo, China
| | - Xiaomin Chen
- Department of Cardiology, The First Affiliated Hospital of Ningbo University, Ningbo, China
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111
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Cao J, Kong W, Cheng G, Xu Z. Role of mTORC1 Signaling in Regulating the Immune Function of Granulocytes in Teleost Fish. Int J Mol Sci 2023; 24:13745. [PMID: 37762047 PMCID: PMC10530975 DOI: 10.3390/ijms241813745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/29/2023] Open
Abstract
Granulocytes are crucial innate immune cells that have been extensively studied in teleost fish. Studies in mammals have revealed that mechanistic target of rapamycin complex 1 (mTORC1) signaling acts as a significant immune regulatory hub, influencing granulocyte immune function. To investigate whether mTORC1 signaling also regulates the immune function of granulocytes in teleost fish, we established a model of RAPA inhibition of the mTORC1 signaling pathway using granulocytes from largemouth bass (Micropterus salmoides). Our results demonstrated that inhibition of mTORC1 signaling promoted autophagy and apoptosis of granulocytes while inhibiting cell proliferation. Moreover, inhibition of the mTORC1 signaling pathway enhanced the phagocytosis capacity of granulocytes. Collectively, our findings revealed the evolutionarily conserved role of the mTORC1 signaling pathway in regulating granulocyte responses, thus providing novel insights into the function of granulocytes in teleost fish.
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Affiliation(s)
- Jiafeng Cao
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.C.); (G.C.)
| | - Weiguang Kong
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;
| | - Gaofeng Cheng
- Department of Aquatic Animal Medicine, College of Fisheries, Huazhong Agricultural University, Wuhan 430070, China; (J.C.); (G.C.)
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;
| | - Zhen Xu
- Key Laboratory of Breeding Biotechnology and Sustainable Aquaculture, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China;
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112
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Zhang Y, Sheng Z, Chen Q, Zhou A, Cao J, Xue F, Ye Y, Wu N, Gao N, Fan D, Liu L, Li Y, Wang P, Liang L, Zhou D, Zhang F, Li F, An J. Neutrophil infiltration leads to fetal growth restriction by impairing the placental vasculature in DENV-infected pregnant mice. EBioMedicine 2023; 95:104739. [PMID: 37544202 PMCID: PMC10432184 DOI: 10.1016/j.ebiom.2023.104739] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 06/22/2023] [Accepted: 07/18/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND Dengue virus (DENV) infection during pregnancy increases the risk of adverse fetal outcomes, which has become a new clinical challenge. However, the underlying mechanism remains unknown. METHODS The effect of DENV-2 infection on fetuses was investigated using pregnant interferon α/β receptor-deficient (Ifnar1-/-) mice. The histopathological changes in the placentas were analyzed by morphological techniques. A mouse inflammation array was used to detect the cytokine and chemokine profiles in the serum and placenta. The infiltration characteristics of inflammatory cells in the placentas were evaluated by single-cell RNA sequencing. FINDINGS Fetal growth restriction observed in DENV-2 infection was mainly caused by the destruction of the placental vasculature rather than direct damage from the virus in our mouse model. After infection, neutrophil infiltration into the placenta disrupts the expression profile of matrix metalloproteinases, which leads to placental dysvascularization and insufficiency. Notably, similar histopathological changes were observed in the placentas from DENV-infected puerperae. INTERPRETATION Neutrophils play key roles in placental histopathological damage during DENV infection, which indicates that interfering with aberrant neutrophil infiltration into the placenta may be an important therapeutic target for adverse pregnancy outcomes in DENV infection. FUNDING The National Key Research and Development Plans of China (2021YFC2300200-02 to J.A., 2019YFC0121905 to Q.Z.C.), the National Natural Science Foundation of China (NSFC) (U1902210 and 81972979 to J. A., 81902048 to Z. Y. S., and 82172266 to P.G.W.), and the Support Project of High-level Teachers in Beijing Municipal Universities in the Period of 13th Five-year Plan, China (IDHT20190510 to J. A.).
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Affiliation(s)
- Yingying Zhang
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China; Department of Blood Transfusion, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Ziyang Sheng
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China.
| | - Qiaozhu Chen
- Department of Ob&Gyn, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Anni Zhou
- Beijing Key Laboratory for Precancerous Lesion of Digestive Disease, Department of Gastroenterology, National Clinical Research Center for Digestive Disease, Beijing Digestive Disease Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jiaying Cao
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Feiyang Xue
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Yanzhen Ye
- Department of Obstetrics and Gynecology, People's Hospital of Nanhai District, Foshan City, 528200, Guangdong, China
| | - Na Wu
- Laboratory Animal Center, Capital Medical University, Beijing, 100069, China
| | - Na Gao
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Dongying Fan
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Libo Liu
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Yuetong Li
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Peigang Wang
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China
| | - Li Liang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Deshan Zhou
- Department of Histology and Embryology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Fuchun Zhang
- Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China
| | - Fang Li
- Department of Ob&Gyn, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China; Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, China.
| | - Jing An
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, 100069, China.
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113
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Sikora JP, Karawani J, Sobczak J. Neutrophils and the Systemic Inflammatory Response Syndrome (SIRS). Int J Mol Sci 2023; 24:13469. [PMID: 37686271 PMCID: PMC10488036 DOI: 10.3390/ijms241713469] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 08/24/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023] Open
Abstract
We are not entirely able to understand, assess, and modulate the functioning of the immune system in clinical situations that lead to a systemic inflammatory response. In the search for diagnostic and treatment strategies (which are still far from perfect), it became very important to study the pathogenesis and participation of endogenous inflammation mediators. This study attempts to more precisely establish the role of neutrophils in individual phenomena occurring during an inflammatory and anti-inflammatory reaction, taking into account their cidal, immunoregulatory, and reparative abilities. Pro- and anticoagulatory properties of endothelium in systemic inflammatory response syndrome (SIRS) are emphasised, along with the resulting clinical implications (the application of immunotherapy using mesenchymal stem/stromal cells (MSCs) or IL-6 antagonists in sepsis and COVID-19 treatment, among others). Special attention is paid to reactive oxygen species (ROS), produced by neutrophils activated during "respiratory burst" in the course of SIRS; the protective and pathogenic role of these endogenous mediators is highlighted. Moreover, clinically useful biomarkers of SIRS (neutrophil extracellular traps, cell-free DNA, DAMP, TREMs, NGAL, miRNA, selected cytokines, ROS, and recognised markers of endothelial damage from the group of adhesins by means of immunohistochemical techniques) related to the neutrophils are presented, and their role in the diagnosing and forecasting of sepsis, burn disease, and COVID-19 is emphasised. Finally, examples of immunomodulation of sepsis and antioxidative thermal injury therapy are presented.
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Affiliation(s)
- Janusz P. Sikora
- Department of Paediatric Emergency Medicine, 2nd Chair of Paediatrics, Central Clinical Hospital, Medical University of Łódź, ul. Sporna 36/50, 91-738 Łódź, Poland;
| | - Jakub Karawani
- Faculty of Medicine, Lazarski University, ul. Świeradowska 43, 02-662 Warsaw, Poland;
| | - Jarosław Sobczak
- Department of Paediatric Emergency Medicine, 2nd Chair of Paediatrics, Central Clinical Hospital, Medical University of Łódź, ul. Sporna 36/50, 91-738 Łódź, Poland;
- Department of Management and Logistics in Healthcare, Medical University of Łódź, ul. Lindleya 6, 90-131 Łódź, Poland
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114
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Su Y, Gao J, Dong X, Wheeler KA, Wang Z. Neutrophil-Mediated Delivery of Nanocrystal Drugs via Photoinduced Inflammation Enhances Cancer Therapy. ACS NANO 2023; 17:15542-15555. [PMID: 37577982 PMCID: PMC10480050 DOI: 10.1021/acsnano.3c02013] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
The efficient delivery of anticancer agents into tumor microenvironments is critical for the success of cancer therapies, but it is a prerequisite that drug carriers should overcome tumor vasculature and possess high drug contents. Here, we found that photoinduced inflammation response caused the migration of neutrophils into tumor microenvironments and neutrophils transported neutrophil-targeted nanoparticles (NPs) across the tumor blood barrier. The results showed that tumor delivery efficiencies of NPs were 5% ID/g, and they were independent of particle sizes (30-200 nm) and their doses (108-1011 NPs). To efficiently deliver anticancer agents into tumors via neutrophils, we fabricated carrier-free paclitaxel nanocrystals (PTX NC). The results showed that neutrophil uptake of PTX NC did not impair neutrophil tumor infiltration, and the sustainable release of PTX from PTX NC in tumors was regulated by paclitaxel protein complexes, thus improving the mouse survival in two preclinical models. Our studies demonstrate that delivery of nanocrystal drugs via neutrophils is a promising method to effectively treat a wide range of cancers, and we have also identified a mechanism of drug release from neutrophils in tumors.
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Affiliation(s)
- Yujie Su
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202, United States
| | - Jin Gao
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202, United States
| | - Xinyue Dong
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202, United States
| | - Kraig A Wheeler
- Department of Chemistry, Whitworth University, Spokane, Washington 99251, United States
| | - Zhenjia Wang
- Department of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Washington State University, Spokane, Washington 99202, United States
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115
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Sixt S, Gruber M, Kolle G, Galla T, Bitzinger D. The Effect of Local Anesthetics on Neutrophils in the Context of Different Isolation Techniques. Biomedicines 2023; 11:2170. [PMID: 37626667 PMCID: PMC10452207 DOI: 10.3390/biomedicines11082170] [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: 06/11/2023] [Revised: 07/28/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Various functions of polymorphonuclear neutrophils (PMNs) are related to diseases and postoperative plasma changes. The influence of some local anesthetics (LAs) on PMNs obtained by conventional isolation methods and their functions has already been demonstrated. This study investigates the effect of selected LAs on PMNs, comparing a new isolation method with conventional ones. To obtain the PMNs, we performed either gelafundin sedimentation, hypotonic lysis or density gradient centrifugation. Subsequently, PMNs were mixed with different concentrations of bupivacaine, levobupivacaine, lidocaine or ropivacaine. Live cell imaging and flow cytometry were performed to quantify the migration, ROS production, NETosis and antigen expression of PMNs. We found the inhibition of chemotaxis and ROS production by LAs. PMNs showed a strong reduction in time to half maximal NETosis in response to bupivacaine and lidocaine, but not to levobupivacaine and ropivacaine. We also found distinct differences in survival time and migration duration between the isolation methods. This suggests that the careful selection of LAs has a short-term impact on in vitro PMNs.
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Affiliation(s)
- Sara Sixt
- Department of Anesthesiology, University Hospital Regensburg, 93042 Regensburg, Germany
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116
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Kim R, Taylor D, Vonderheide RH, Gabrilovich DI. Ferroptosis of immune cells in the tumor microenvironment. Trends Pharmacol Sci 2023; 44:542-552. [PMID: 37380530 DOI: 10.1016/j.tips.2023.06.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 06/13/2023] [Accepted: 06/13/2023] [Indexed: 06/30/2023]
Abstract
Ferroptosis is a distinct form of cell death driven by the accumulation of peroxidized lipids. Characterized by alterations in redox lipid metabolism, ferroptosis has been implicated in a variety of cellular processes, including cancer. Induction of ferroptosis is considered a novel way to kill tumor cells, especially cells resistant to radiation and chemotherapy. However, in recent years, a new paradigm has emerged. In addition to promoting tumor cell death, ferroptosis causes potent immune suppression in the tumor microenvironment (TME) by affecting both innate and adaptive immune responses. In this review, we discuss the dual role of ferroptosis in the antitumor and protumorigenic functions of immune cells in cancer. We suggest strategies for targeting ferroptosis, taking into account its ambiguous role in cancer.
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Affiliation(s)
- Rina Kim
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Devon Taylor
- AstraZeneca, R&D Oncology, Gaithersburg, MD, USA
| | - Robert H Vonderheide
- Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA; Parker Institute for Cancer Immunotherapy, University of Pennsylvania, Philadelphia, PA, USA
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117
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Heshin-Bekenstein M, Baron S, Schulert G, Shusterman A, Fidel V, Ben-Shahar Y, Shukrun R, Binenbaum Y, Elhasid R. Neutrophils extracellular traps formation may serve as a biomarker for disease activity in oligoarticular juvenile idiopathic arthritis: a pilot study. Arthritis Res Ther 2023; 25:135. [PMID: 37525216 PMCID: PMC10388488 DOI: 10.1186/s13075-023-03104-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 07/04/2023] [Indexed: 08/02/2023] Open
Abstract
BACKGROUND Juvenile idiopathic arthritis (JIA) is the most common chronic rheumatic disease in children, causing significant morbidity. Despite the dramatic improvement in treatment, many patients do not achieve complete remission, and biomarkers for subclinical disease, flares, and response to treatment are lacking. Neutrophils and neutrophil extracellular traps (NETs) play key roles in the pathogenesis of autoimmune and inflammatory conditions. In this study, we characterized neutrophil enzyme activity and NETs formation in oligoarticular and polyarticular JIA and explored their association with disease activity. METHODS Neutrophils from 6 healthy controls and 7 patients with oligoarticular and polyarticular JIA were freshly isolated at time of diagnosis and after glucocorticoid intra-articular injection. Enzymatic activity of neutrophil granular enzymes was monitored by colorimetry and PMA-activated NETs formation was assessed using fluorescent microscopy. RESULTS In this pilot and feasibility study, we revealed that NETs were significantly increased in oligoarticular JIA patients at time of diagnosis compared to healthy controls. Anti-inflammatory treatment using intra-articular steroid injection normalized NETs formation in these patients. Correlation between NETs formation and clinical Juvenile Activity Disease Activity Score-10 (cJADAS-10) was linear and significant (P = 0.007) in oligo but not in poly JIA patients. CONCLUSIONS This is the first study exploring the link of NETs formation with oligo and poly JIA activity. We demonstrated a statistically significant linear correlation between cJADAS-10 and NETs formation in oligo but not in poly JIA patients. Hence, we suggest that NETs may reflect clinical disease activity in JIA, and may serve as a putative biomarker. Further work is needed to validate these initial results and determine the dynamics of NETs formation in JIA.
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Affiliation(s)
- Merav Heshin-Bekenstein
- Pediatric Rheumatology Service, Dana Dwek Children's Hospital of Tel Aviv Medical Center, Tel Aviv, Israel.
- School of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Szilvia Baron
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Grant Schulert
- Division of Rheumatology, Cincinnati, OH, USA
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Anna Shusterman
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Victoria Fidel
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Yoav Ben-Shahar
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Department of Pediatric Surgery, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Rachel Shukrun
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Yoav Binenbaum
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
| | - Ronit Elhasid
- School of Medicine, Tel Aviv University, Tel Aviv, Israel
- Pediatric Hemato-Oncology Research Laboratory, Tel Aviv Medical Center, Tel Aviv, Israel
- Department of Pediatric Hemato-Oncology, Tel Aviv Medical Center, Tel Aviv, Israel
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Leal PDS, Veeren IBL, Fonseca S, Machado CH, Lopes CWG. The importance of morphological changes in neutrophils in the diagnosis of bacterial infections in dogs with confirmed urinary tract infections in a Veterinary Care Service, Rio de Janeiro, Brazil. BRAZILIAN JOURNAL OF VETERINARY MEDICINE 2023; 45:e004022. [PMID: 37521363 PMCID: PMC10374294 DOI: 10.29374/2527-2179.bjvm0004022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Accepted: 06/06/2023] [Indexed: 08/01/2023] Open
Abstract
Neutrophils (PMNs) are cellular markers used for diagnosing inflammation and/or infections. In this study, the objective was to highlight the importance of recording the toxic morphological alterations of the PMNs as markers of infection in 10 cases, positive bacterial isolation by culture due to dysuria, hematuria and/or fetid urine, as manifestations of urinary tract disease. Smear observations were performed by immersion for counting and morphological evaluations of 3,000 leukocytes in smears and in leukocyte concentrate. One (10.0%) of the dogs had leukocytosis, and two (20.0%) dogs had leukopenia. All animals showed toxic PMNs with positive bacterial culture. None of the cases in the study showed any quantitative alterations in PMNs such as: neutropenia or neutrophilia, where 100% had nuclear displacement of the regenerative type of PMNs to the left. 100% cases had toxic morphological changes: 90.0% had PMNs with toxic granulations, 80.0% had giant rod neutrophils, 70.0% had target PMNs, in 50.0% of those with vacuolation in the cytoplasm, in 40.0% of the animals, the presence of giant PMNs, 10.0% with Döhle bodies, and another animal 10.0% with karyorrhexis. All case studies had at least one association of two types of toxic changes. Toxic morphological alterations observed in PMNs through cystoscopy proved to be more reliable and sensitive in evidencing the diagnosis of infections than the quantitative alterations of absolute values of total leukocytes; therefore, they were essential in the laboratory diagnosis by blood count in the course of infections in dogs.
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Affiliation(s)
- Paulo Daniel Sant’Anna Leal
- Veterinarian, DSc., Programa de Pós-Graduação em Ciências Veterinárias (PPGCV), Departamento de Parasitologia Animal (DPA), Instituto de Veterinária (IV), Universidade Federal Rural do Rio de Janeiro (UFRRJ). Seropédica, RJ, Brazil.
| | - Ianna Barbosa Lima Veeren
- Veterinarian, autonomous. Rua Januário José Pinto de Oliveira, 735, Recreio dos Bandeirantes, RJ, Brazil.
| | - Solange Fonseca
- Microbiologist, Hospital Getúlio Vargas, Penha Circular, Rio de Janeiro, RJ, Brazil.
| | - Carlos Henrique Machado
- Veterinarian, DSc., Departamento de Clínica e Cirurgia Veterinária, IV, UFRRJ. Seropédica, RJ, Brazil.
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119
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Zhang C, Cao J, Xu M, Wu D, Li W, Chang Y. The role of neutrophils in chorioamnionitis. Front Immunol 2023; 14:1198831. [PMID: 37475854 PMCID: PMC10354368 DOI: 10.3389/fimmu.2023.1198831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/16/2023] [Indexed: 07/22/2023] Open
Abstract
Chorioamnionitis, commonly referred to as intrauterine infection or inflammation, is pathologically defined by neutrophil infiltration and inflammation at the maternal-fetal interface. Chorioamnionitis is the common complication during late pregnancy, which lead to a series of serious consequences, such as preterm labor, preterm premature rupture of the fetal membranes, and fetal inflammatory response syndrome. During infection, a large number of neutrophils migrate to the chorio-decidua in response to chemokines. Although neutrophils, a crucial part of innate immune cells, have strong anti-inflammatory properties, over-activating them can harm the body while also eliminating pathogens. This review concentrated on the latest studies on chorioamnionitis-related consequences as well as the function and malfunction of neutrophils. The release of neutrophil extracellular traps, production of reactive oxygen species, and degranulation from neutrophils during intrauterine infection, as well as their pathological roles in complications related to chorioamnionitis, were discussed in detail, offering fresh perspectives on the treatment of chorioamnionitis.
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Affiliation(s)
| | | | | | | | | | - Ying Chang
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin central hospital of Gynecology Obstetrics, Tianjin, China
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Faass L, Hauke M, Stein SC, Josenhans C. Innate activation of human neutrophils and neutrophil-like cells by the pro-inflammatory bacterial metabolite ADP-heptose and Helicobacter pylori. Int J Med Microbiol 2023; 313:151585. [PMID: 37399704 DOI: 10.1016/j.ijmm.2023.151585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/16/2023] [Accepted: 06/26/2023] [Indexed: 07/05/2023] Open
Abstract
Lipopolysaccharide inner core heptose metabolites, including ADP-heptose, play a substantial role in the activation of cell-autonomous innate immune responses in eukaryotic cells, via the ALPK1-TIFA signaling pathway, as demonstrated for various pathogenic bacteria. The important role of LPS heptose metabolites during Helicobacter pylori infection of the human gastric niche has been demonstrated for gastric epithelial cells and macrophages, while the role of heptose metabolites on human neutrophils has not been investigated. In this study, we aimed to gain a better understanding of the activation potential of bacterial heptose metabolites for human neutrophil cells. To do so, we used pure ADP-heptose and, as a bacterial model, H. pylori, which can transport heptose metabolites into the human host cell via the Cag Type 4 Secretion System (CagT4SS). Main questions were how bacterial heptose metabolites impact on the pro-inflammatory activation, alone and in the bacterial context, and how they influence maturation of human neutrophils. Results of the present study demonstrated that neutrophils respond with high sensitivity to pure heptose metabolites, and that global regulation networks and neutrophil maturation are influenced by heptose exposure. Furthermore, activation of human neutrophils by live H. pylori is strongly impacted by the presence of LPS heptose metabolites and the functionality of its CagT4SS. Similar activities were determined in cell culture neutrophils of different maturation states and in human primary neutrophils. In conclusion, we demonstrated that specific heptose metabolites or bacteria producing heptoses exhibit a strong activity on cell-autonomous innate responses of human neutrophils.
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Affiliation(s)
- Larissa Faass
- Max von Pettenkofer Institute for Medical Microbiology and Hospital Epidemiology, Ludwig Maximilians-University München, Pettenkoferstrasse 9a, 80336 München, Germany
| | - Martina Hauke
- Max von Pettenkofer Institute for Medical Microbiology and Hospital Epidemiology, Ludwig Maximilians-University München, Pettenkoferstrasse 9a, 80336 München, Germany
| | - Saskia C Stein
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Christine Josenhans
- Max von Pettenkofer Institute for Medical Microbiology and Hospital Epidemiology, Ludwig Maximilians-University München, Pettenkoferstrasse 9a, 80336 München, Germany; DZIF Partner Site Munich, Germany.
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Molinaro C, Scalise M, Leo I, Salerno L, Sabatino J, Salerno N, De Rosa S, Torella D, Cianflone E, Marino F. Polarizing Macrophage Functional Phenotype to Foster Cardiac Regeneration. Int J Mol Sci 2023; 24:10747. [PMID: 37445929 DOI: 10.3390/ijms241310747] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
There is an increasing interest in understanding the connection between the immune and cardiovascular systems, which are highly integrated and communicate through finely regulated cross-talking mechanisms. Recent evidence has demonstrated that the immune system does indeed have a key role in the response to cardiac injury and in cardiac regeneration. Among the immune cells, macrophages appear to have a prominent role in this context, with different subtypes described so far that each have a specific influence on cardiac remodeling and repair. Similarly, there are significant differences in how the innate and adaptive immune systems affect the response to cardiac damage. Understanding all these mechanisms may have relevant clinical implications. Several studies have already demonstrated that stem cell-based therapies support myocardial repair. However, the exact role that cardiac macrophages and their modulation may have in this setting is still unclear. The current need to decipher the dual role of immunity in boosting both heart injury and repair is due, at least for a significant part, to unresolved questions related to the complexity of cardiac macrophage phenotypes. The aim of this review is to provide an overview on the role of the immune system, and of macrophages in particular, in the response to cardiac injury and to outline, through the modulation of the immune response, potential novel therapeutic strategies for cardiac regeneration.
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Affiliation(s)
- Claudia Molinaro
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy
| | - Mariangela Scalise
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
| | - Isabella Leo
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
| | - Luca Salerno
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
| | - Jolanda Sabatino
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
| | - Nadia Salerno
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
| | - Salvatore De Rosa
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy
| | - Daniele Torella
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
| | - Eleonora Cianflone
- Department of Medical and Surgical Sciences, Magna Graecia University, 88100 Catanzaro, Italy
| | - Fabiola Marino
- Department of Experimental and Clinical Medicine, Magna Graecia University, 88100 Catanzaro, Italy
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Di Raimondo C, Lombardo P, Tesei C, Esposito F, Meconi F, Secchi R, Lozzi F, Monopoli A, Narducci MG, Scala E, Angeloni C, De Stefano A, Rahimi S, Bianchi L, Cantonetti M. Role of Neutrophil-to-Lymphocyte Ratio (NLR) in Patients with Mycosis Fungoides. Diagnostics (Basel) 2023; 13:diagnostics13111979. [PMID: 37296831 DOI: 10.3390/diagnostics13111979] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/28/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
BACKGROUND The neutrophil/lymphocyte ratio (NLR) at baseline has been demonstrated to correlate with higher stages of disease and to be a prognostic factor in numerous cancers. However, its function as a prognostic factor for mycosis fungoides (MF) has not been yet clarified. OBJECTIVE Our work aimed to assess the association of the NLR with different stages of MF and to outline whether higher values of this marker are related to a more aggressive MF. METHODS We retrospectively calculated the NLRs in 302 MF patients at the moment of diagnosis. The NLR was obtained using the complete blood count values. RESULTS The median NLR among patients with early stage disease (low-grade IA-IB-IIA) was 1.88, while the median NLR for patients with high-grade MF (IIB-IIIA-IIIB) was 2.64. Statistical analysis showed positive associations of advanced MF stages with NLRs higher than 2.3. CONCLUSIONS Our analysis demonstrates that the NLR represents a cheap and easily available parameter functioning as a marker for advanced MF. This might guide physicians in recognizing patients with advanced stages of disease requiring a strict follow-up or an early treatment.
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Affiliation(s)
- Cosimo Di Raimondo
- Department of Dermatology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Paolo Lombardo
- Istituto Dermopatico dell'Immacolata, IDI-IRCCS, 00167 Rome, Italy
| | - Cristiano Tesei
- Department of Hematology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Fabiana Esposito
- Department of Hematology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Federico Meconi
- Department of Hematology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Roberto Secchi
- Department of Hematology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Flavia Lozzi
- Department of Dermatology, University of Roma Tor Vergata, 00133 Rome, Italy
| | | | | | - Enrico Scala
- Istituto Dermopatico dell'Immacolata, IDI-IRCCS, 00167 Rome, Italy
| | - Cecilia Angeloni
- Department of Diagnostic Imaging and Interventional Radiology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Alberto De Stefano
- Volunteers Association of Fondazione Policlinico "Tor Vergata", 00133 Rome, Italy
| | - Siavash Rahimi
- Istituto Dermopatico dell'Immacolata, IDI-IRCCS, 00167 Rome, Italy
| | - Luca Bianchi
- Department of Dermatology, University of Roma Tor Vergata, 00133 Rome, Italy
| | - Maria Cantonetti
- Istituto Dermopatico dell'Immacolata, IDI-IRCCS, 00167 Rome, Italy
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Zhong Q, Xiao X, Qiu Y, Xu Z, Chen C, Chong B, Zhao X, Hai S, Li S, An Z, Dai L. Protein posttranslational modifications in health and diseases: Functions, regulatory mechanisms, and therapeutic implications. MedComm (Beijing) 2023; 4:e261. [PMID: 37143582 PMCID: PMC10152985 DOI: 10.1002/mco2.261] [Citation(s) in RCA: 27] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 03/26/2023] [Accepted: 03/27/2023] [Indexed: 05/06/2023] Open
Abstract
Protein posttranslational modifications (PTMs) refer to the breaking or generation of covalent bonds on the backbones or amino acid side chains of proteins and expand the diversity of proteins, which provides the basis for the emergence of organismal complexity. To date, more than 650 types of protein modifications, such as the most well-known phosphorylation, ubiquitination, glycosylation, methylation, SUMOylation, short-chain and long-chain acylation modifications, redox modifications, and irreversible modifications, have been described, and the inventory is still increasing. By changing the protein conformation, localization, activity, stability, charges, and interactions with other biomolecules, PTMs ultimately alter the phenotypes and biological processes of cells. The homeostasis of protein modifications is important to human health. Abnormal PTMs may cause changes in protein properties and loss of protein functions, which are closely related to the occurrence and development of various diseases. In this review, we systematically introduce the characteristics, regulatory mechanisms, and functions of various PTMs in health and diseases. In addition, the therapeutic prospects in various diseases by targeting PTMs and associated regulatory enzymes are also summarized. This work will deepen the understanding of protein modifications in health and diseases and promote the discovery of diagnostic and prognostic markers and drug targets for diseases.
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Affiliation(s)
- Qian Zhong
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Xina Xiao
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Yijie Qiu
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Zhiqiang Xu
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Chunyu Chen
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Baochen Chong
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Xinjun Zhao
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Shan Hai
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Shuangqing Li
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Zhenmei An
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
| | - Lunzhi Dai
- Department of Endocrinology and MetabolismGeneral Practice Ward/International Medical Center WardGeneral Practice Medical Center and National Clinical Research Center for GeriatricsState Key Laboratory of BiotherapyWest China Hospital, Sichuan UniversityChengduChina
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Henneck T, Krüger C, Nerlich A, Langer M, Fingerhut L, Bonilla MC, Meurer M, von den Berg S, de Buhr N, Branitzki-Heinemann K, von Köckritz-Blickwede M. Comparison of NET quantification methods based on immunofluorescence microscopy: Hand-counting, semi-automated and automated evaluations. Heliyon 2023; 9:e16982. [PMID: 37484269 PMCID: PMC10361044 DOI: 10.1016/j.heliyon.2023.e16982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 05/18/2023] [Accepted: 06/02/2023] [Indexed: 07/25/2023] Open
Abstract
Formation of neutrophil extracellular traps was first described in 2004, showing that NETs are composed of decondensed chromatin fibers and nuclear and granule components. Free DNA is often used to quantify NETs, but to differentiate NETosis from necrotic DNA-release, immunofluorescence microscopy with NET-specific markers is required. Although evaluation by hand is time-consuming and difficult to standardize, it is still widespread. Unfortunately, no standardized method and only limited software tools are available for NET evaluation. This study provides an overview of recent techniques in use and aims to compare two published computer-based methods with hand counting. We found that the selected semi-automated quantification method and fully automated quantification via NETQUANT differed significantly from results obtained by hand and exhibited problems in detection of complex NET structures with partially illogical results. In contrast to that, trained persons were able to adapt to varying settings. Future approaches aimed at developing deep-learning algorithms for fast and reproducible quantification of NETs are needed.
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Affiliation(s)
- Timo Henneck
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Christina Krüger
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Andreas Nerlich
- Institute for Microbiology, University of Veterinary Medicine Hannover, Foundation, 30173, Hannover, Germany
| | - Melissa Langer
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Leonie Fingerhut
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Marta C. Bonilla
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Marita Meurer
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Sönke von den Berg
- Institute for Zoology, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Nicole de Buhr
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Katja Branitzki-Heinemann
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
| | - Maren von Köckritz-Blickwede
- Institute of Biochemistry, University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
- Research Center for Emerging Infections and Zoonoses (RIZ), University of Veterinary Medicine Hannover, Foundation, 30559, Hannover, Germany
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Kinyi HW, Kato CD, Tusubira D, Kiwanuka GN. Comparison of the Nutritional Status of Swiss Albino Mice Fed on Either a Purified or Cereal-Based Diet for 15 weeks. Biochem Res Int 2023; 2023:9121174. [PMID: 37293435 PMCID: PMC10247330 DOI: 10.1155/2023/9121174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/03/2023] [Accepted: 05/22/2023] [Indexed: 06/10/2023] Open
Abstract
Background Laboratory animals are commonly fed on cereal-based diets (CBDs) whose nutrient composition is unknown and may confound the metabolic response to study interventions. Purified diets such as AIN-93M are therefore recommended, as their nutrient composition is known. However, few studies have evaluated their use as adequate control diets. The aim of this study was to compare the nutrition status of Swiss albino mice fed on either CBD or AIN-93M for 15 weeks. Methods Twenty Swiss albino mice aged 6-8 weeks and weighing 21.7 g ± 0.6 were fed on either CBD or AIN-93M diet for 15 weeks. Their nutritional status was evaluated using anthropometric and hematological indices, serum glucose, total protein, albumin, and total cholesterol to select an appropriate normal control diet. Results The CBD had low-calorie content (2.57 kcal/g) and protein (11 ± 3.8 g/100 g) compared to AIN-93M (3.8 kcal/g and 14 g/100 g, respectively). The BMI of male mice fed on CBD and AIN-93M diets was significantly higher (P=0.0139 and P=0.0325, respectively) compared to that of females fed on similar diets. Animals in the CBD group had lower hemoglobin (15.1-16.9 g/dl) compared to those in the AIN-93M group (18.1-20.8 g/dl). Serum albumin levels were higher in both male (P=0.001) and female (P=3 × 10-6) mice fed on AIN-93M compared to those fed on CBD. Females in the AIN-93M group had higher cholesterol (P=0.026) than those in the CBD group. Conclusion The AIN-93 diet of caloric value 3.85 kcal/g (total protein 14 g, total fat 4 g of soy bean oil, fibre 5 g, and total carbohydrate 42 g per 100 g) can be safely used as a normal control diet in long-term research studies using Swiss albino mice.
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Affiliation(s)
- Hellen W. Kinyi
- Department of Biochemistry, Faculty of Medicine, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda
- Department of Biochemistry, School of Medicine, Kabale University, P.O. Box 317, Kabale, Uganda
| | - Charles Drago Kato
- School of Biosecurity, Biotechnical and Laboratory Studies, College of Veterinary Medicine, Animal Resource and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Deusdedit Tusubira
- Department of Biochemistry, Faculty of Medicine, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda
| | - Gertrude N. Kiwanuka
- Department of Biochemistry, Faculty of Medicine, Mbarara University of Science and Technology, P.O. Box 1410, Mbarara, Uganda
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Conn BN, Wozniak KL. Innate Pulmonary Phagocytes and Their Interactions with Pathogenic Cryptococcus Species. J Fungi (Basel) 2023; 9:617. [PMID: 37367553 PMCID: PMC10299524 DOI: 10.3390/jof9060617] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/23/2023] [Accepted: 05/25/2023] [Indexed: 06/28/2023] Open
Abstract
Cryptococcus neoformans is an opportunistic fungal pathogen that causes over 180,000 annual deaths in HIV/AIDS patients. Innate phagocytes in the lungs, such as dendritic cells (DCs) and macrophages, are the first cells to interact with the pathogen. Neutrophils, another innate phagocyte, are recruited to the lungs during cryptococcal infection. These innate cells are involved in early detection of C. neoformans, as well as the removal and clearance of cryptococcal infections. However, C. neoformans has developed ways to interfere with these processes, allowing for the evasion of the host's innate immune system. Additionally, the innate immune cells have the ability to aid in cryptococcal pathogenesis. This review discusses recent literature on the interactions of innate pulmonary phagocytes with C. neoformans.
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Affiliation(s)
| | - Karen L. Wozniak
- Department of Microbiology and Molecular Genetics, Oklahoma State University, 307 Life Science East, Stillwater, OK 74078, USA;
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Lee IS, Lee YR, Sim JH, Kim KM, Kim YS. The Effects of 1- O-Acetylbritannilactone Isolated from Inula britannica Flowers on Human Neutrophil Elastase and Inflammation of RAW 264.7 Cells and Zebrafish Larvae. Molecules 2023; 28:molecules28114320. [PMID: 37298794 DOI: 10.3390/molecules28114320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 05/20/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
During a search for natural inflammatory inhibitors, 1-O-acetylbritannilactone (ABL), a sesquiterpene lactone, was isolated from the flowers of Inula britannica. ABL significantly inhibited human neutrophil elastase (HNE) with a half-maximal inhibitory concentration (IC50) of 3.2 ± 0.3 µM, thus did so more effectively than the positive control material (epigallocatechin gallate) (IC50 7.2 ± 0.5 µM). An enzyme kinetic study was performed. ABL noncompetitively inhibited HNE with an inhibition constant Ki of 2.4 µM. ABL inhibited lipopolysaccharide-induced nitric oxide and prostaglandin E2 production by RAW 264.7 cells in a dose-dependent manner, as well as the protein-level expression of inducible nitric oxide synthase and cyclooxygenase-2. The anti-inflammatory effect of ABL was confirmed using a transgenic Tg(mpx:EGFP) zebrafish larval model. The exposure of the larvae to ABL inhibited neutrophil recruitment to the site of injury after tail fin amputation.
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Affiliation(s)
- Ik Soo Lee
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Yu-Ri Lee
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Jea Heon Sim
- Department of Oriental Medicinal Biotechnology, College of Life Sciences, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Ki Mo Kim
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
| | - Young Sook Kim
- Korean Medicine Convergence Research Division, Korea Institute of Oriental Medicine, Daejeon 34054, Republic of Korea
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Seiler DL, Kähler KH, Kleingarn M, Sadik CD, Bieber K, Köhl J, Ludwig RJ, Karsten CM. The complement receptor C5aR2 regulates neutrophil activation and function contributing to neutrophil-driven epidermolysis bullosa acquisita. Front Immunol 2023; 14:1197709. [PMID: 37275893 PMCID: PMC10235453 DOI: 10.3389/fimmu.2023.1197709] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/02/2023] [Indexed: 06/07/2023] Open
Abstract
Introduction The function of the second receptor for the complement cleavage product C5a, C5aR2, is poorly understood and often neglected in the immunological context. Using mice with a global deficiency of C5aR2, we have previously reported an important role of this receptor in the pathogenesis of the neutrophil-driven autoimmune disease epidermolysis bullosa acquisita (EBA). Based on in vitro analyses, we hypothesized that the absence of C5aR2 specifically on neutrophils is the cause of the observed differences. Here, we report the generation of a new mouse line with a LysM-specific deficiency of C5aR2. Methods LysM-specific deletion of C5aR2 was achieved by crossing LysMcre mice with tdTomato-C5ar2fl/fl mice in which the tdTomato-C5ar2 gene is flanked by loxP sites. Passive EBA was induced by subcutaneous injection of rabbit anti-mouse collagen type VII IgG. The effects of targeted deletion of C5ar2 on C5a-induced effector functions of neutrophils were examined in in vitro assays. Results We confirm the successful deletion of C5aR2 at both the genetic and protein levels in neutrophils. The mice appeared healthy and the expression of C5aR1 in bone marrow and blood neutrophils was not negatively affected by LysM-specific deletion of C5aR2. Using the antibody transfer mouse model of EBA, we found that the absence of C5aR2 in LysM-positive cells resulted in an overall amelioration of disease progression, similar to what we had previously found in mice with global deficiency of C5aR2. Neutrophils lacking C5aR2 showed decreased activation after C5a stimulation and increased expression of the inhibitory Fcγ receptor FcγRIIb. Discussion Overall, with the data presented here, we confirm and extend our previous findings and show that C5aR2 in neutrophils regulates their activation and function in response to C5a by potentially affecting the expression of Fcγ receptors and CD11b. Thus, C5aR2 regulates the finely tuned interaction network between immune complexes, Fcγ receptors, CD11b, and C5aR1 that is important for neutrophil recruitment and sustained activation. This underscores the importance of C5aR2 in the pathogenesis of neutrophil-mediated autoimmune diseases.
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Affiliation(s)
- Daniel L. Seiler
- Institute for Systemic Inflammation Research (ISEF), University of Lübeck, Lübeck, Germany
| | - Katja H. Kähler
- Institute for Systemic Inflammation Research (ISEF), University of Lübeck, Lübeck, Germany
| | - Marie Kleingarn
- Institute for Systemic Inflammation Research (ISEF), University of Lübeck, Lübeck, Germany
| | - Christian D. Sadik
- Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergology and Venerology, University Hospital Schleswig-Holstein, Lübeck, Germany
| | - Katja Bieber
- Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergology and Venerology, University Hospital Schleswig-Holstein, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Jörg Köhl
- Institute for Systemic Inflammation Research (ISEF), University of Lübeck, Lübeck, Germany
- Division of Immunobiology, Cincinnati Children’s Hospital Medical Centre, University of Cincinnati College of Medicine, Cincinnati, OH, United States
| | - Ralf J. Ludwig
- Center for Research on Inflammation of the Skin (CRIS), University of Lübeck, Lübeck, Germany
- Department of Dermatology, Allergology and Venerology, University Hospital Schleswig-Holstein, Lübeck, Germany
- Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, Lübeck, Germany
| | - Christian M. Karsten
- Institute for Systemic Inflammation Research (ISEF), University of Lübeck, Lübeck, Germany
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Soliman AM, Barreda DR. The acute inflammatory response of teleost fish. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2023; 146:104731. [PMID: 37196851 DOI: 10.1016/j.dci.2023.104731] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/19/2023]
Abstract
Acute inflammation is crucial to the immune responses of fish. The process protects the host from infection and is central to induction of subsequent tissue repair programs. Activation of proinflammatory signals reshapes the microenvironment within an injury/infection site, initiates leukocyte recruitment, promotes antimicrobial mechanisms and contributes to the resolution of inflammation. Inflammatory cytokines and lipid mediators are primary contributors to these processes. Uncontrolled or persistent induction results in delayed tissue healing. The kinetics by which inducers and regulators of acute inflammation exert their actions is essential for understanding the pathogenesis of fish diseases and identifying potential treatments. Although, a number of these are well-conserved across, others are not, reflecting the unique physiologies and life histories of members of this unique animal group.
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Affiliation(s)
- Amro M Soliman
- Department of Biological Sciences, University of Alberta, Canada
| | - Daniel R Barreda
- Department of Biological Sciences, University of Alberta, Canada; Department of Agricultural, Food and Nutritional Science, University of Alberta, Canada.
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130
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Xia W, Singh N, Goel S, Shi S. Molecular Imaging of Innate Immunity and Immunotherapy. Adv Drug Deliv Rev 2023; 198:114865. [PMID: 37182699 DOI: 10.1016/j.addr.2023.114865] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/17/2023] [Accepted: 05/03/2023] [Indexed: 05/16/2023]
Abstract
The innate immune system plays a key role as the first line of defense in various human diseases including cancer, cardiovascular and inflammatory diseases. In contrast to tissue biopsies and blood biopsies, in vivo imaging of the innate immune system can provide whole body measurements of immune cell location and function and changes in response to disease progression and therapy. Rationally developed molecular imaging strategies can be used in evaluating the status and spatio-temporal distributions of the innate immune cells in near real-time, mapping the biodistribution of novel innate immunotherapies, monitoring their efficacy and potential toxicities, and eventually for stratifying patients that are likely to benefit from these immunotherapies. In this review, we will highlight the current state-of-the-art in noninvasive imaging techniques for preclinical imaging of the innate immune system particularly focusing on cell trafficking, biodistribution, as well as pharmacokinetics and dynamics of promising immunotherapies in cancer and other diseases; discuss the unmet needs and current challenges in integrating imaging modalities and immunology and suggest potential solutions to overcome these barriers.
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Affiliation(s)
- Wenxi Xia
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112, United States
| | - Neetu Singh
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112, United States
| | - Shreya Goel
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112, United States; Department of Biomedical Engineering, University of Utah, Salt Lake City, UT 84112, United States; Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT 84112, United States
| | - Sixiang Shi
- Department of Molecular Pharmaceutics, University of Utah, Salt Lake City, UT 84112, United States; Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT 84112, United States.
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Takeuchi K, Kazumura K, Yoshida A, Furuta T, Hayashi K, Nagai M, Hatano Y, Naito M, Matsushita E. Comparison of the oxidative profiles before and after revascularization in peripheral arterial disease: a pilot study. J Clin Biochem Nutr 2023; 72:278-288. [PMID: 37251959 PMCID: PMC10209599 DOI: 10.3164/jcbn.22-109] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 12/10/2022] [Indexed: 06/09/2024] Open
Abstract
Reactive and highly reactive oxygen species (ROS and hROS) produced by white blood cells are essential for innate immunity; however, they may cause oxidative stress in the host. We developed systems for simultaneously monitoring ROS and hROS, i.e., superoxide radicals (O2•-) and hypochlorite ions (OCl-) secreted from stimulated white blood cells in a few microliters of whole blood. We previously reported on the evaluation of healthy volunteers' blood using the developed system; however, whether patients' blood can be assessed remains unclear. Here, we report a pilot study of 30 cases (28 patients) with peripheral arterial disease, in whom we measured the ROS and hROS levels before and approximately one month after endovascular treatment (EVT) using the system (CFL-H2200) that we developed. At approximately the same time points, physiological indices of blood vessels, oxidative stress markers, and standard clinical parameters in the blood were also monitored. The ankle-brachial index, a diagnostic tool for peripheral arterial disease, was significantly improved after EVT (p<0.001). The ROS-hROS ratio, low-density lipoprotein cholesterol, and hematocrit levels were decreased after EVT (p<0.05), while triglyceride and lymphocyte levels were increased after EVT (p<0.05). The correlations between the study parameters were also analyzed.
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Affiliation(s)
- Kozo Takeuchi
- Central Research Laboratory, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita-ku, Hamamatsu, Shizuoka 434-8601, Japan
| | - Kimiko Kazumura
- Central Research Laboratory, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita-ku, Hamamatsu, Shizuoka 434-8601, Japan
- Global Strategic Challenge Center, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita-ku, Hamamatsu, Shizuoka 434-8601, Japan
| | - Akihiro Yoshida
- Department of Clinical Laboratory, Nakatsugawa Municipal General Hospital, 1522-1 Komaba, Nakatsugawa, Gifu 508-8502, Japan
| | - Tappei Furuta
- Department of Cardiology, Nakatsugawa Municipal General Hospital, 1522-1 Komaba, Nakatsugawa, Gifu 508-8502, Japan
| | - Kazunori Hayashi
- Department of Cardiology, Nakatsugawa Municipal General Hospital, 1522-1 Komaba, Nakatsugawa, Gifu 508-8502, Japan
| | - Masashi Nagai
- Research and Development Division, Healthcare Systems Co. Ltd., 1-14-18 Shirakane, Shouwa-ku, Nagoya, Aichi 466-0058, Japan
| | - Yukiko Hatano
- Central Research Laboratory, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita-ku, Hamamatsu, Shizuoka 434-8601, Japan
- Global Strategic Challenge Center, Hamamatsu Photonics K.K., 5000 Hirakuchi, Hamakita-ku, Hamamatsu, Shizuoka 434-8601, Japan
| | - Michitaka Naito
- Department of Human Nutrition, School of Life Studies, Sugiyama Jogakuen University, 17-3 Hoshigaoka-motomachi, Chikusa-ku, Nagoya, Aichi 464-8662, Japan
| | - Etsushi Matsushita
- Department of Cardiology, Nakatsugawa Municipal General Hospital, 1522-1 Komaba, Nakatsugawa, Gifu 508-8502, Japan
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132
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Malairaj S, Veeraperumal S, Yao W, Subramanian M, Tan K, Zhong S, Cheong KL. Porphyran from Porphyra haitanensis Enhances Intestinal Barrier Function and Regulates Gut Microbiota Composition. Mar Drugs 2023; 21:md21050265. [PMID: 37233459 DOI: 10.3390/md21050265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/27/2023] Open
Abstract
In this study, the effects of a homogenous porphyran from Porphyra haitanensis (PHP) on the intestinal barrier and gut microbiota were investigated. The results showed that oral administration of PHP resulted in a higher luminal moisture content and a lower pH environment for the growth of beneficial bacteria in the colon of mice. PHP significantly increased the production of total short-chain fatty acids during the fermentation process. PHP made the intestinal epithelial cells of mice arrange more tidily and tightly with a significant increase in mucosal thickness. PHP also increased the amount of mucin-producing goblet cells and the expression of mucin in the colon, which maintained the structure and function of the intestinal mucosal barrier. Moreover, PHP up-regulated the expression of tight junctions including ZO-1 and occludin, improving the intestinal physical barrier function. The results of 16S rRNA sequencing showed that PHP regulated the composition of gut microbiota in mice, increasing the richness and diversity of gut microbiota and the ratio of Firmicutes to Bacteroidetes. This study revealed that the intake of PHP is beneficial for the gastrointestinal tract and PHP could be a potential source of prebiotics in the functional food and pharmaceutical industries.
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Affiliation(s)
- Sathuvan Malairaj
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
| | - Suresh Veeraperumal
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Wanzi Yao
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Mugesh Subramanian
- Research and Development Center, Genexia Bioserv, Chennai 600045, Tamilnadu, India
| | - Karsoon Tan
- Guangxi Key Laboratory of Beibu Gulf Biodiversity Conservation, Beibu Gulf University, Qinzhou 535011, China
| | - Saiyi Zhong
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
| | - Kit-Leong Cheong
- Guangdong Provincial Engineering Technology Research Center of Seafood, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, Guangdong Provincial Key Laboratory of Aquatic Product Processing and Safety, Guangdong Province Engineering Laboratory for Marine Biological Products, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China
- Department of Biology, College of Science, Shantou University, Shantou 515063, China
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133
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Jaun F, Boesing M, Luethi-Corridori G, Abig K, Bloch N, Giezendanner S, Grillmayr V, Haas P, Leuppi-Taegtmeyer AB, Muser J, Raess A, Schuetz P, Brändle M, Leuppi JD. Effect of Single High Dose Vitamin D Substitution in Hospitalized COVID-19 Patients with Vitamin D Deficiency on Length of Hospital Stay. Biomedicines 2023; 11:biomedicines11051277. [PMID: 37238948 DOI: 10.3390/biomedicines11051277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 05/28/2023] Open
Abstract
Vitamin D and its role in the coronavirus-19 disease (COVID-19) pandemic has been controversially discussed, with inconclusive evidence about vitamin D3 (cholecalciferol) supplementation in COVID-19 patients. Vitamin D metabolites play an important role in the initiation of the immune response and can be an easily modifiable risk factor in 25-hydroxyvitamin D3 (25(OH)D3)-deficient patients. This is a multicenter, randomized, placebo-controlled double-blind trial to compare the effect of a single high dose of vitamin D3 followed by treatment as usual (TAU) of daily vitamin D3 daily until discharge versus placebo plus TAU in hospitalized patients with COVID-19 and 25(OH)D3-deficiency on length hospital stay. We included 40 patients per group and did not observe a significant difference in the median length of hospital stay (6 days in both groups, p = 0.920). We adjusted the length of stay for COVID-19 risk factors (β = 0.44; 95% CI: -2.17-2.22), and center (β = 0.74; 95% CI: -1.25-2.73). The subgroup analysis in patients with severe 25(OH)D3-deficiency (<25 nmol/L) showed a non-significant reduction in the median length of hospital stay in the intervention group (5.5 vs. 9 days, p = 0.299). The competing risk model with death did not reveal significant differences between the group in the length of stay (HR = 0.96, 95% CI 0.62-1.48, p = 0.850). Serum 25(OH)D3 level increased significantly in the intervention group (mean change in nmol/L; intervention: +26.35 vs. control: -2.73, p < 0.001). The intervention with 140,000 IU vitamin D3 + TAU did not significantly shorten the length of hospital stay but was effective and safe for the elevation of serum 25(OH)D3 levels.
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Affiliation(s)
- Fabienne Jaun
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
- Paracelsus Medical University, Master Programme Public Health, Center for Public Health and Healthcare Research, 5020 Salzburg, Austria
| | - Maria Boesing
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
| | - Giorgia Luethi-Corridori
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
| | - Kristin Abig
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
| | - Nando Bloch
- Cantonal Hospital St. Gallen, 9000 St. Gallen, Switzerland
| | - Stéphanie Giezendanner
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
| | | | - Philippe Haas
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
| | - Anne B Leuppi-Taegtmeyer
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
| | - Jürgen Muser
- Central Laboratories, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
| | - Andrea Raess
- Cantonal Hospital St. Gallen, 9000 St. Gallen, Switzerland
| | - Philipp Schuetz
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
- Cantonal Hospital Aarau, 5001 Aarau, Switzerland
| | | | - Jörg D Leuppi
- University Center of Internal Medicine, Cantonal Hospital Baselland, 4410 Liestal, Switzerland
- Medical Faculty, University of Basel, 4001 Basel, Switzerland
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134
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Chao CJ, Zhang E, Zhao Z. Engineering cells for precision drug delivery: New advances, clinical translation, and emerging strategies. Adv Drug Deliv Rev 2023; 197:114840. [PMID: 37088403 DOI: 10.1016/j.addr.2023.114840] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/04/2023] [Accepted: 04/17/2023] [Indexed: 04/25/2023]
Abstract
Cells have emerged as a promising new form of drug delivery carriers owing to their distinguished advantages such as naturally bypassing immune recognition, intrinsic capability to navigate biological barriers, and access to hard-to-reach tissues via onboarding sensing and active motility. Over the past two decades, a large body of work has focused on understanding the ability of cell carriers to breach biological barriers and to modulate drug pharmacokinetics and pharmacodynamics. These efforts have led to the engineering of various cells for tissue-specific drug delivery. Despite exciting advances, clinical translation of cell-based drug carriers demands a thorough understanding of the pressing challenges and potential strategies to overcome them. Here, we summarize recent advances and new concepts in cell-based drug carriers and their clinical translation. We also discuss key considerations and emerging strategies to engineering the next-generation cell-based delivery technologies for more precise, targeted drug delivery.
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Affiliation(s)
- Chih-Jia Chao
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Endong Zhang
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois Chicago, Chicago, IL 60612, USA
| | - Zongmin Zhao
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Illinois Chicago, Chicago, IL 60612, USA; Translational Oncology Program, University of Illinois Cancer Center, Chicago, IL 60612.
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135
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Sorrells MG, Seo Y, Magnen M, Broussard B, Sheybani R, Shah AM, O’Neal HR, Tse HTK, Looney MR, Di Carlo D. Biophysical Changes of Leukocyte Activation (and NETosis) in the Cellular Host Response to Sepsis. Diagnostics (Basel) 2023; 13:1435. [PMID: 37189536 PMCID: PMC10138275 DOI: 10.3390/diagnostics13081435] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/03/2023] [Accepted: 04/11/2023] [Indexed: 05/17/2023] Open
Abstract
Sepsis, the leading cause of mortality in hospitals, currently lacks effective early diagnostics. A new cellular host response test, the IntelliSep test, may provide an indicator of the immune dysregulation characterizing sepsis. The objective of this study was to examine the correlation between the measurements performed using this test and biological markers and processes associated with sepsis. Phorbol myristate acetate (PMA), an agonist of neutrophils known to induce neutrophil extracellular trap (NET) formation, was added to whole blood of healthy volunteers at concentrations of 0, 200, and 400 nM and then evaluated using the IntelliSep test. Separately, plasma from a cohort of subjects was segregated into Control and Diseased populations and tested for levels of NET components (citrullinated histone (cit-H3) DNA and neutrophil elastase (NE) DNA) using customized ELISA assays and correlated with ISI scores from the same patient samples. Significant increases in IntelliSep Index (ISI) scores were observed with increasing concentrations of PMA in healthy blood (0 and 200: p < 10-10; 0 and 400: p < 10-10). Linear correlation was observed between the ISI and quantities of NE DNA and Cit-H3 DNA in patient samples. Together these experiments demonstrate that the IntelliSep test is associated with the biological processes of leukocyte activation and NETosis and may indicate changes consistent with sepsis.
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Affiliation(s)
| | - Yurim Seo
- Departments of Medicine and Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143, USA
| | - Melia Magnen
- Departments of Medicine and Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143, USA
| | - Bliss Broussard
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA 70310, USA
| | | | | | - Hollis R. O’Neal
- LSU Health Sciences Center/Our Lady of the Lake Regional Medical Center, Baton Rouge, LA 70808, USA
| | | | - Mark R. Looney
- Departments of Medicine and Laboratory Medicine, University of California San Francisco, San Francisco, CA 94143, USA
| | - Dino Di Carlo
- Departments of Bioengineering and Mechanical and Aerospace Engineering, University of California Los Angeles, Los Angeles, CA 90095, USA
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136
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Wang M, Liu W, Ge J, Liu S. The immunomodulatory mechanisms for acupuncture practice. Front Immunol 2023; 14:1147718. [PMID: 37090714 PMCID: PMC10117649 DOI: 10.3389/fimmu.2023.1147718] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 03/20/2023] [Indexed: 04/09/2023] Open
Abstract
The system physiology approaches that emerge in western countries in recent years echo the holistic view of ancient Traditional Chinese Medicine (TCM) practices that deal with the root, rather than only the symptoms of diseases. Particularly, TCM practices, including acupuncture, emphasize the mobilization of self-healing mechanisms to bring back body homeostasis. Acupuncture has been practiced for over two thousand years to modulate body physiology via stimulation at specific body regions (acupoints). With the development of various research on acupuncture therapy, its regulatory effect on the immune system has been gradually recognized, especially on immunological diseases, including infectious and allergic diseases. In this study, we reviewed the immunomodulatory mechanism of acupuncture and systematically integrates existing research to respectively elucidate the modulatory mechanisms of acupuncture on the innate immune system, adaptive immune system, and well-known neuroanatomical mechanisms, including intact somatosensory-autonomic reflex pathway. With the advances made in recent systems physiology studies, we now have a great opportunity to gain insight into how acupuncture modulates immunity, and subsequently improves its efficacy.
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137
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Goyal MK, Solanki RK, Jain A, Yadav KS. Comparison of NLR (neutrophil/lymphocyte ratio) and PLR (platelet/lymphocyte ratio) as inflammatory markers in 1 st episode mania and bipolar mania: A preliminary study. Indian J Psychiatry 2023; 65:465-468. [PMID: 37325091 PMCID: PMC10263085 DOI: 10.4103/indianjpsychiatry.indianjpsychiatry_250_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 06/17/2023] Open
Abstract
Background There are various factors including inflammation that have been studied in bipolar disorder. NLR (Neutrophil to lymphocyte ratio) and PLR (platelet to lymphocyte ratio) are one of them. Various psychotropic drugs can affect the inflammatory state. Aim This study was planned to find NLR and PLR in bipolar disorder (mania) and psychotropic drug naïve 1st episode mania. Materials and Methods Total of 120 subjects were chosen including, 40 bipolar mania, 40 drugs naïve 1st episode mania, and 40 healthy controls. The severity of mania was assessed by the Young Mania Rating Scale. Blood samples were collected in the morning hours in order to get blood counts. Results A significantly higher values of neutrophil counts and NLR, while the significant lower values of lymphocyte counts in both 1st episode and bipolar mania compared to healthy control were observed. The first episode mania group had significantly higher neutrophil counts and NLR in comparison to bipolar mania. Conclusion Results suggest a possible inflammatory pathophysiology of mania. Psychotropic medicines may have an anti-inflammatory effect, signified by the fact that 1st episode mania group has a greater level of inflammation in comparison to bipolar mania.
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Affiliation(s)
- Manish K. Goyal
- Department of Psychiatry, SMS Medical College, Jaipur, Rajasthan, India
| | - Ram K. Solanki
- Department of Psychiatry, SMS Medical College, Jaipur, Rajasthan, India
| | - Akhilesh Jain
- Department of Psychiatry, ESIC Model Hospital, Jaipur, Rajasthan, India
| | - Kuldeep S. Yadav
- Department of Psychiatry, SMS Medical College, Jaipur, Rajasthan, India
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138
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Chen H, Xia Z, Qing B, Wang W, Gu L, Chen Y, Wang J, Yuan Y. Analysis of necroptosis-related prognostic genes and immune infiltration in idiopathic pulmonary fibrosis. Front Immunol 2023; 14:1119139. [PMID: 37051233 PMCID: PMC10083386 DOI: 10.3389/fimmu.2023.1119139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Accepted: 03/16/2023] [Indexed: 03/29/2023] Open
Abstract
BackgroundIPF is an undetermined, progressive lung disease. Necroptosis is a type of programmed apoptosis, which involved in the pathogenesis of lung diseases like COPD and ARDS. However, necroptosis in IPF have not been adequately studied. This study aimed to investigate the necroptosis in IPF and the relationship between necroptosis and immune infiltration, to construct a prognostic prediction model of IPF based on necroptosis-related genes.MethodsGSE110147 was downloaded from the GEO database and utilized to analyze the expression of necroptosis-related differentially expressed genes (NRDEGs). Then NRDEGs were used to construct protein-protein interaction (PPI) networks in the STRING database, and Cytoscape software was used to identify and visualize hub genes. Necroptosis-related prognosticgenes were explored in GSE70866, and a prognostic prediction model was constructed. The ImmuCellAI algorithm was utilized to analyze the landscape of immune infiltration in GSE110147. The single-cell RNA sequencing dataset GSE122960 was used to explore the association between necroptosis and type II alveolar epithelial cells (AT II) in IPF. The GSE213001 and GSE93606 were used for external validation. The expression of prognostic genes was quantified using RT-qPCRin the IPF A549 cell model, and was further verified by western blotting in the bleomycin-induced pulmonary fibrosis mouse model.ResultsIt was observed that necroptosis-related signaling pathways were abundantly enriched in IPF. 29 NRDEGs were screened, of which 12 showed consistent expression trends in GSE213001. Spearman correlation analysis showed that the expression of NRDEGs was positively correlated with the infiltration of proinflammatory immune cells, and negatively correlated with the infiltration of anti-inflammatory immune cells. NRDEGs, including MLKL, were highly expressed in AT II of fibrotic lung tissue. A necroptosis-related prediction model was constructed based on 4 NRDEGsby the cox stepwise regression. In the validation dataset GSE93606, the prognostic prediction model showed good applicability. The verification results of RT-qPCR and western blotting showed the reliability of most of the conclusions.ConclusionsThis study revealed that necroptosis existed in IPF and might occur in AT II. Necroptosis was associated with immune infiltration, suggesting that necroptosis of AT II might involve in IPF by activating immune infiltration and immune response.
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139
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Schloss JV. Nutritional deficiencies that may predispose to long COVID. Inflammopharmacology 2023; 31:573-583. [PMID: 36920723 PMCID: PMC10015545 DOI: 10.1007/s10787-023-01183-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 02/28/2023] [Indexed: 03/16/2023]
Abstract
Multiple nutritional deficiencies (MND) confound studies designed to assess the role of a single nutrient in contributing to the initiation and progression of disease states. Despite the perception of many healthcare practitioners, up to 25% of Americans are deficient in five-or-more essential nutrients. Stress associated with the COVID-19 pandemic further increases the prevalence of deficiency states. Viral infections compete for crucial nutrients with immune cells. Viral replication and proliferation of immunocompetent cells critical to the host response require these essential nutrients, including zinc. Clinical studies have linked levels of more than 22 different dietary components to the likelihood of COVID-19 infection and the severity of the disease. People at higher risk of infection due to MND are also more likely to have long-term sequelae, known as Long COVID.
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Affiliation(s)
- John V Schloss
- Departments of Pharmaceutical Science and Biochemistry & Molecular Biology, Schools of Pharmacy and Medicine, American University of Health Sciences, 1600 East Hill St., Signal Hill, CA, 90755, USA.
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140
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Song J, Kim SJ, Gollamudi J, Thiagarajan P, Prchal JT. Downregulated KLF2 in polycythemia vera and essential thrombocythemia induces prothrombotic gene expression. Blood Adv 2023; 7:712-717. [PMID: 36343116 PMCID: PMC9984957 DOI: 10.1182/bloodadvances.2022008052] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 11/09/2022] Open
Abstract
Thromboses are major causes of morbidity and mortality in polycythemia vera (PV) and essential thrombocythemia (ET) diseases associated with JAK2V617F mutation. However, the molecular mechanism(s) of increased thrombosis in PV and ET remain unknown. Kruppel-like factor 2 (KLF2) is a transcription factor that regulates expression of genes associated with inflammation and thrombosis; the absence of KLF2 in neutrophils causes thrombosis by inducing tissue factor. We studied the role of KLF2 in regulating prothrombotic gene expression in PV and ET. Neutrophils and platelets KLF2 expression in PV and ET was lower than the controls. Furthermore, in patients with thromboses, KLF2 transcripts were lower in platelets than those without thromboses. JAK2V617F allelic burden was inversely correlated with KLF2 transcript levels, suggesting JAK-STAT pathway may downregulate KLF2 expression. Whole transcriptome analyses of neutrophils and platelets showed that a lower KLF2 expression was associated with an upregulation of KLF2-regulated thrombotic genes. In addition, low KLF2 expression in platelets positively correlated with thrombotic events. In patients with PV and ET, KLF2 expression was induced by pegylated interferon alfa (PegINF-α) but not by hydroxyurea treatments. These data suggest that KLF2 may be a regulator of PV and ET thrombosis and a novel therapeutic target to prevent thrombosis.
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Affiliation(s)
- Jihyun Song
- Division of Hematology, Huntsman Cancer Institute, School of Medicine, University of Utah, Salt Lake City, UT
| | - Soo Jin Kim
- Division of Hematology, Huntsman Cancer Institute, School of Medicine, University of Utah, Salt Lake City, UT
| | | | - Perumal Thiagarajan
- Department of Medicine and Pathology, Center for Translational Research on Inflammatory Diseases, Michael E. DeBakey Veterans Affairs Medical Center, Baylor College of Medicine, Houston, TX
| | - Josef T. Prchal
- Division of Hematology, Huntsman Cancer Institute, School of Medicine, University of Utah, Salt Lake City, UT
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141
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Adrover JM, McDowell SAC, He XY, Quail DF, Egeblad M. NETworking with cancer: The bidirectional interplay between cancer and neutrophil extracellular traps. Cancer Cell 2023; 41:505-526. [PMID: 36827980 DOI: 10.1016/j.ccell.2023.02.001] [Citation(s) in RCA: 53] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/09/2023] [Accepted: 02/01/2023] [Indexed: 02/25/2023]
Abstract
Neutrophils are major effectors and regulators of the immune system. They play critical roles not only in the eradication of pathogens but also in cancer initiation and progression. Conversely, the presence of cancer affects neutrophil activity, maturation, and lifespan. By promoting or repressing key neutrophil functions, cancer cells co-opt neutrophil biology to their advantage. This co-opting includes hijacking one of neutrophils' most striking pathogen defense mechanisms: the formation of neutrophil extracellular traps (NETs). NETs are web-like filamentous extracellular structures of DNA, histones, and cytotoxic granule-derived proteins. Here, we discuss the bidirectional interplay by which cancer stimulates NET formation, and NETs in turn support disease progression. We review how vascular dysfunction and thrombosis caused by neutrophils and NETs underlie an elevated risk of death from cardiovascular events in cancer patients. Finally, we propose therapeutic strategies that may be effective in targeting NETs in the clinical setting.
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Affiliation(s)
- Jose M Adrover
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Sheri A C McDowell
- Rosalind and Morris Goodman Cancer Institute, McGill University, Montreal, QC, Canada; Department of Physiology, Faculty of Medicine, McGill University, Montreal, QC, Canada
| | - Xue-Yan He
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
| | - Daniela F Quail
- Rosalind and Morris Goodman Cancer Institute, McGill University, Montreal, QC, Canada; Department of Physiology, Faculty of Medicine, McGill University, Montreal, QC, Canada.
| | - Mikala Egeblad
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA.
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142
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Azcutia V, Kelm M, Fink D, Cummings RD, Nusrat A, Parkos CA, Brazil JC. Sialylation regulates neutrophil transepithelial migration, CD11b/CD18 activation, and intestinal mucosal inflammatory function. JCI Insight 2023; 8:e167151. [PMID: 36719745 PMCID: PMC10077474 DOI: 10.1172/jci.insight.167151] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 01/25/2023] [Indexed: 02/01/2023] Open
Abstract
Polymorphonuclear neutrophils (PMNs) play a critical role in clearing invading microbes and promoting tissue repair following infection/injury. However, dysregulated PMN trafficking and associated tissue damage is pathognomonic of numerous inflammatory mucosal diseases. The final step in PMN influx into mucosal lined organs (including the lungs, kidneys, skin, and gut) involves transepithelial migration (TEpM). The β2-integrin CD11b/CD18 plays an important role in mediating PMN intestinal trafficking, with recent studies highlighting that terminal fucose and GlcNAc glycans on CD11b/CD18 can be targeted to reduce TEpM. However, the role of the most abundant terminal glycan, sialic acid (Sia), in regulating PMN epithelial influx and mucosal inflammatory function is not well understood. Here we demonstrate that inhibiting sialidase-mediated removal of α2-3-linked Sia from CD11b/CD18 inhibits PMN migration across intestinal epithelium in vitro and in vivo. Sialylation was also found to regulate critical PMN inflammatory effector functions, including degranulation and superoxide release. Finally, we demonstrate that sialidase inhibition reduces bacterial peptide-mediated CD11b/CD18 activation in PMN and blocks downstream intracellular signaling mediated by spleen tyrosine kinase (Syk) and p38 MAPK. These findings suggest that sialylated glycans on CD11b/CD18 represent potentially novel targets for ameliorating PMN-mediated tissue destruction in inflammatory mucosal diseases.
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Affiliation(s)
- Veronica Azcutia
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Matthias Kelm
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Dylan Fink
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Richard D. Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - Asma Nusrat
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Charles A. Parkos
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jennifer C. Brazil
- Department of Pathology, University of Michigan, Ann Arbor, Michigan, USA
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143
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Neutrophil Extracellular Traps in Airway Diseases: Pathological Roles and Therapeutic Implications. Int J Mol Sci 2023; 24:ijms24055034. [PMID: 36902466 PMCID: PMC10003347 DOI: 10.3390/ijms24055034] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/27/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Neutrophils are important effector cells of the innate immune response that fight pathogens by phagocytosis and degranulation. Neutrophil extracellular traps (NETs) are released into the extracellular space to defend against invading pathogens. Although NETs play a defensive role against pathogens, excessive NETs can contribute to the pathogenesis of airway diseases. NETs are known to be directly cytotoxic to the lung epithelium and endothelium, highly involved in acute lung injury, and implicated in disease severity and exacerbation. This review describes the role of NET formation in airway diseases, including chronic rhinosinusitis, and suggests that targeting NETs could be a therapeutic strategy for airway diseases.
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144
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Deciphering actin remodelling in immune cells through the prism of actin-related inborn errors of immunity. Eur J Cell Biol 2023; 102:151283. [PMID: 36525824 DOI: 10.1016/j.ejcb.2022.151283] [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: 06/30/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 12/14/2022] Open
Abstract
Actin cytoskeleton remodelling drives cell motility, cell to cell contacts, as well as membrane and organelle dynamics. Those cellular activities operate at a particularly high pace in immune cells since these cells migrate through various tissues, interact with multiple cellular partners, ingest microorganisms and secrete effector molecules. The central and multifaceted role of actin cytoskeleton remodelling in sustaining immune cell tasks in humans is highlighted by rare inborn errors of immunity due to mutations in genes encoding proximal and distal actin regulators. In line with the specificity of some of the actin-based processes at work in immune cells, the expression of some of the affected genes, such as WAS, ARPC1B and HEM1 is restricted to the hematopoietic compartment. Exploration of these natural deficiencies highlights the fact that the molecular control of actin remodelling is tuned distinctly in the various subsets of myeloid and lymphoid immune cells and sustains different networks associated with a vast array of specialized tasks. Furthermore, defects in individual actin remodelling proteins are usually associated with partial cellular impairments highlighting the plasticity of actin cytoskeleton remodelling. This review covers the roles of disease-associated actin regulators in promoting the actin-based processes of immune cells. It focuses on the specific molecular function of those regulators across various immune cell subsets and in response to different stimuli. Given the fact that numerous immune-related actin defects have only been characterized recently, we further discuss the challenges lying ahead to decipher the underlying patho-mechanisms.
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145
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Abstract
The principle of trained immunity represents innate immune memory due to sustained, mainly epigenetic, changes triggered by endogenous or exogenous stimuli in bone marrow (BM) progenitors (central trained immunity) and their innate immune cell progeny, thereby triggering elevated responsiveness against secondary stimuli. BM progenitors can respond to microbial and sterile signals, thereby possibly acquiring trained immunity-mediated long-lasting alterations that may shape the fate and function of their progeny, for example, neutrophils. Neutrophils, the most abundant innate immune cell population, are produced in the BM from committed progenitor cells in a process designated granulopoiesis. Neutrophils are the first responders against infectious or inflammatory challenges and have versatile functions in immunity. Together with other innate immune cells, neutrophils are effectors of peripheral trained immunity. However, given the short lifetime of neutrophils, their ability to acquire immunological memory may lie in the central training of their BM progenitors resulting in generation of reprogrammed, that is, "trained", neutrophils. Although trained immunity may have beneficial effects in infection or cancer, it may also mediate detrimental outcomes in chronic inflammation. Here, we review the emerging research area of trained immunity with a particular emphasis on the role of neutrophils and granulopoiesis.
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Affiliation(s)
- Lydia Kalafati
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - Aikaterini Hatzioannou
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
| | - George Hajishengallis
- Department of Basic and Translational Sciences, School of Dental Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine, Technische Universität Dresden, Dresden, Germany
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146
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Wareing N, Mohan V, Taherian R, Volkmann ER, Lyons MA, Wilhalme H, Roth MD, Estrada-y-Martin RM, Skaug B, Mayes MD, Tashkin DP, Assassi S. Blood Neutrophil Count and Neutrophil-to-Lymphocyte Ratio for Prediction of Disease Progression and Mortality in Two Independent Systemic Sclerosis Cohorts. Arthritis Care Res (Hoboken) 2023; 75:648-656. [PMID: 35287250 PMCID: PMC9470772 DOI: 10.1002/acr.24880] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 02/16/2022] [Accepted: 03/08/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To assess the predictive significance of blood neutrophil count and the ratio between neutrophil and lymphocyte count (neutrophil-to-lymphocyte ratio [NLR]) for disease severity and mortality in systemic sclerosis (SSc). METHODS Neutrophil and lymphocyte counts were prospectively measured in the Genetics versus Environment in Scleroderma Outcome Study (GENISOS) and the Scleroderma Lung Study II (SLS II). Forced vital capacity percent predicted (FVC%) and modified Rodnan skin thickness score (MRSS) were used as surrogate measures for disease severity. Longitudinal analyses were performed using generalized linear mixed models. Cox proportional hazards models evaluated the predictive significance of these cell counts for mortality. RESULTS Of the 447 SSc patients in the GENISOS cohort at the time of analysis, 377 (84.3%) had available baseline blood neutrophil and lymphocyte counts. Higher baseline neutrophil count and NLR predicted lower serially obtained FVC% (b = -4.74, P = 0.009 and b = -2.68, P = 0.028, respectively) and higher serially obtained MRSS (b = 4.07, P < 0.001 and b = 2.32, P < 0.001, respectively). Longitudinal neutrophil and NLR measurements also significantly correlated with lower concurrently obtained FVC% measurements and higher concurrently obtained MRSS. Baseline neutrophil count and NLR predicted increased risk of long-term mortality, even after adjustment for baseline demographic and clinical factors (hazard ratio [HR] 1.42, P = 0.02 and HR 1.48, P < 0.001, respectively). The predictive significance of higher baseline neutrophil count and NLR for declining FVC% and increased long-term mortality was confirmed in the SLS II. CONCLUSION Higher blood neutrophil count and NLR are predictive of more severe disease course and increased mortality, indicating that these easily obtainable laboratory studies might be a reflection of pathologic immune processes in SSc.
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Affiliation(s)
- Nancy Wareing
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
| | - Vishnu Mohan
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
| | - Rana Taherian
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
| | | | - Marka A. Lyons
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
| | | | | | | | - Brian Skaug
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
| | - Maureen D. Mayes
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
| | | | - Shervin Assassi
- McGovern Medical School at University of Texas Health Science Center at Houston, TX, USA
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147
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Knowles AA, Campbell SG, Cross NA, Stafford P. Dysregulation of Stress-Induced Translational Control by Porphyromonas gingivalis in Host Cells. Microorganisms 2023; 11:microorganisms11030606. [PMID: 36985180 PMCID: PMC10057856 DOI: 10.3390/microorganisms11030606] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 03/04/2023] Open
Abstract
Porphyromonas gingivalis contributes to the chronic oral disease periodontitis, triggering the activation of host inflammatory responses, inducing cellular stresses such as oxidation. During stress, host cells can activate the Integrated Stress Response (ISR), a pathway which determines cellular fate, by either downregulating protein synthesis and initiating a stress–response gene expression program, or by initiating programmed cell death. Recent studies have implicated the ISR within both host antimicrobial defenses and the pathomechanism of certain microbes. In this study, using a combination of immunofluorescence confocal microscopy and immunoblotting, the molecular mechanisms by which P. gingivalis infection alters translation attenuation during oxidative stress-induced activation of the ISR in oral epithelial cells were investigated. P. gingivalis infection alone did not result in ISR activation. In contrast, infection coupled with stress caused differential stress granule formation and composition. Infection heightened stress-induced translational repression independently of core ISR mediators. Heightened translational repression during stress was observed with both P. gingivalis–conditioned media and outer membrane vesicles, implicating a secretory factor in this exacerbated translational repression. The effects of gingipain inhibitors and gingipain-deficient P. gingivalis mutants confirmed these pathogen-specific proteases as the effector of exacerbated translational repression. Gingipains are known to degrade the mammalian target of rapamycin (mTOR) and the findings of this study implicate the gingipain-mTOR axis as the effector of host translational dysregulation during stress.
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148
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Putative Role of Neutrophil Extracellular Trap Formation in Chronic Myeloproliferative Neoplasms. Int J Mol Sci 2023; 24:ijms24054497. [PMID: 36901933 PMCID: PMC10003516 DOI: 10.3390/ijms24054497] [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: 02/04/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023] Open
Abstract
Myeloproliferative neoplasms (MPNs) are hematologic malignancies characterized by gene mutations that promote myeloproliferation and resistance to apoptosis via constitutively active signaling pathways, with Janus kinase 2-signal transducers and the activators of transcription (JAK-STAT) axis as a core part. Chronic inflammation has been described as a pivot for the development and advancement of MPNs from early stage cancer to pronounced bone marrow fibrosis, but there are still unresolved questions regarding this issue. The MPN neutrophils are characterized by upregulation of JAK target genes, they are in a state of activation and with deregulated apoptotic machinery. Deregulated neutrophil apoptotic cell death supports inflammation and steers them towards secondary necrosis or neutrophil extracellular trap (NET) formation, a trigger of inflammation both ways. NETs in proinflammatory bone marrow microenvironment induce hematopoietic precursor proliferation, which has an impact on hematopoietic disorders. In MPNs, neutrophils are primed for NET formation, and even though it seems obvious for NETs to intervene in the disease progression by supporting inflammation, no reliable data are available. We discuss in this review the potential pathophysiological relevance of NET formation in MPNs, with the intention of contributing to a better understanding of how neutrophils and neutrophil clonality can orchestrate the evolution of a pathological microenvironment in MPNs.
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149
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Uhl B, Haring F, Slotta-Huspenina J, Luft J, Schneewind V, Hildinger J, Wu Z, Steiger K, Smiljanov B, Batcha AMN, Keppler OT, Hellmuth JC, Lahmer T, Stock K, Weiss BG, Canis M, Stark K, Bromberger T, Moser M, Schulz C, Weichert W, Zuchtriegel G, Reichel CA. Vitronectin promotes immunothrombotic dysregulation in the venular microvasculature. Front Immunol 2023; 14:1078005. [PMID: 36845099 PMCID: PMC9945350 DOI: 10.3389/fimmu.2023.1078005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Accepted: 01/05/2023] [Indexed: 02/10/2023] Open
Abstract
Microvascular immunothrombotic dysregulation is a critical process in the pathogenesis of severe systemic inflammatory diseases. The mechanisms controlling immunothrombosis in inflamed microvessels, however, remain poorly understood. Here, we report that under systemic inflammatory conditions the matricellular glycoproteinvitronectin (VN) establishes an intravascular scaffold, supporting interactions of aggregating platelets with immune cells and the venular endothelium. Blockade of the VN receptor glycoprotein (GP)IIb/IIIa interfered with this multicellular interplay and effectively prevented microvascular clot formation. In line with these experimental data, particularly VN was found to be enriched in the pulmonary microvasculature of patients with non-infectious (pancreatitis-associated) or infectious (coronavirus disease 2019 (COVID-19)-associated) severe systemic inflammatory responses. Targeting the VN-GPIIb/IIIa axis hence appears as a promising, already feasible strategy to counteract microvascular immunothrombotic dysregulation in systemic inflammatory pathologies.
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Affiliation(s)
- Bernd Uhl
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany,*Correspondence: Bernd Uhl,
| | - Florian Haring
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | | | - Joshua Luft
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Vera Schneewind
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Jonas Hildinger
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Zhengquan Wu
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Katja Steiger
- Department of Pathology, Technical University of Munich, Munich, Germany
| | - Bojan Smiljanov
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Aarif M. N. Batcha
- Institute of Medical Data Processing, Biometrics, and Epidemiology (IBE), University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany,Data Integration for Future Medicine (DiFuture), University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Oliver T. Keppler
- Max von Pettenkofer Institute and Gene Center, Virology, National Reference Center for Retroviruses, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany,German Centre for Infection Research (DZIF), Partner Site München, Munich, Germany
| | - Johannes C. Hellmuth
- Department of Medicine III, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Munich, Germany,COVID-19 Registry of the LMU Munich (CORKUM), University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Tobias Lahmer
- Department of Internal Medicine II, Technical University of Munich, Munich, Germany
| | - Konrad Stock
- Department of Nephrology, Technical University of Munich, Munich, Germany
| | - Bernhard G. Weiss
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Martin Canis
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany
| | - Konstantin Stark
- Department of Cardiology, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Thomas Bromberger
- Institute of Experimental Hematology, Technical University of Munich, Munich, Germany
| | - Markus Moser
- Institute of Experimental Hematology, Technical University of Munich, Munich, Germany
| | - Christian Schulz
- Department of Cardiology, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Wilko Weichert
- Department of Pathology, Technical University of Munich, Munich, Germany
| | - Gabriele Zuchtriegel
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
| | - Christoph A. Reichel
- Department of Otorhinolaryngology, University Hospital, Ludwig-Maximilians-Universität München (LMU), Munich, Germany,Walter Brendel Centre of Experimental Medicine, University Hospital, Ludwig-Maximilians-Universität München (LMU) Munich, Munich, Germany
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150
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Mol S, Taanman-Kueter EWM, van der Steen BA, Groot Kormelink T, van de Sande MGH, Tas SW, Wauben MHM, de Jong EC. Hyaluronic Acid in Synovial Fluid Prevents Neutrophil Activation in Spondyloarthritis. Int J Mol Sci 2023; 24:ijms24043066. [PMID: 36834478 PMCID: PMC9964069 DOI: 10.3390/ijms24043066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023] Open
Abstract
Spondyloarthritis (SpA) patients suffer from joint inflammation resulting in tissue damage, characterized by the presence of numerous neutrophils in the synovium and synovial fluid (SF). As it is yet unclear to what extent neutrophils contribute to the pathogenesis of SpA, we set out to study SF neutrophils in more detail. We analyzed the functionality of SF neutrophils of 20 SpA patients and 7 disease controls, determining ROS production and degranulation in response to various stimuli. In addition, the effect of SF on neutrophil function was determined. Surprisingly, our data show that SF neutrophils in SpA patients have an inactive phenotype, despite the presence of many neutrophil-activating stimuli such as GM-CSF and TNF in SF. This was not due to exhaustion as SF neutrophils readily responded to stimulation. Therefore, this finding suggests that one or more inhibitors of neutrophil activation may be present in SF. Indeed, when blood neutrophils from healthy donors were activated in the presence of increasing concentrations of SF from SpA patients, degranulation and ROS production were dose-dependently inhibited. This effect was independent of diagnosis, gender, age, and medication in the patients from which the SF was isolated. Treatment of SF with the enzyme hyaluronidase strongly reduced the inhibitory effect of SF on neutrophil activation, indicating that hyaluronic acid that is present in SF may be an important factor in preventing SF neutrophil activation. This finding provides novel insights into the role of soluble factors in SF regulating neutrophil function and may lead to the development of novel therapeutics targeting neutrophil activation via hyaluronic acid or associated pathways.
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Affiliation(s)
- Sanne Mol
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, The Netherlands
| | - Esther W. M. Taanman-Kueter
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Baltus A. van der Steen
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Tom Groot Kormelink
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
| | - Marleen G. H. van de Sande
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
- Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Sander W. Tas
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
- Department of Rheumatology and Clinical Immunology, Amsterdam Rheumatology and Immunology Center, Amsterdam University Medical Centers, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Marca H. M. Wauben
- Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, 3584 CL Utrecht, The Netherlands
| | - Esther C. de Jong
- Department of Experimental Immunology, Amsterdam Institute for Infection and Immunity, Amsterdam UMC, Location AMC, 1105 AZ Amsterdam, The Netherlands
- Correspondence: ; Tel.: +31-20-5664963
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